Patent Publication Number: US-2022224032-A1

Title: Electrical connector

Description:
CROSS-REFERENCE TO RELATED PATENT APPLICATION 
     This application is a Continuation-In-Part of the U.S. application Ser. No. 17/213,177, filed on Mar. 25 2021 and entitled “CONNECTOR HAVING SHUNT STRUCTURE AND SHUNT DEVICE THEREOF”, now pending. This application claims the benefit of priorities to the U.S. Provisional Patent Application Ser. No. 63/000,494 filed on Mar. 27, 2020, Ser. No. 63/021,096 filed on May 7, 2020, and Ser. No. 63/158,390 filed on Mar. 9, 2021, and the benefit of priorities to Taiwan Patent Application No. 110106949 filed on Feb. 26, 2021 and No. 111104225 filed on Feb. 7, 2022. The entire content of each of the above identified applications is incorporated herein by reference. 
     Some references, which may include patents, patent applications and various publications, may be cited and discussed in the description of this disclosure. The citation and/or discussion of such references is provided merely to clarify the description of the present disclosure and is not an admission that any such reference is “prior art” to the disclosure described herein. All references cited and discussed in this specification are incorporated herein by reference in their entireties and to the same extent as if each reference was individually incorporated by reference. 
    
    
     FIELD OF THE DISCLOSURE 
     The present disclosure relates to an electrical connector, and in particular, to an electrical connector with an electrical terminal assembly capable of performing a current shunting function. 
     BACKGROUND OF THE DISCLOSURE 
     In the prior art, an electrical connector for supplying a current usually transmits the current through only a single output interface. Using a board-side electrical connector as an example, when the board-side electrical connector transmits a current to a circuit board, the current is all shunted by the circuit board for providing a required shunt current to electronic components on the circuit board. However, if a high current is supplied and shunted through the circuit board, a current-carrying capacity of the circuit board needs to be increased. In addition, power loss is caused during shunting of the current through the circuit board. 
     Therefore, how to improve the supply of board-side electrical connectors by improving a structural design has become an issue to be resolved in this technical field. 
     SUMMARY OF THE DISCLOSURE 
     A technical problem to be resolved by the present disclosure is to provide an electrical connector with an electrical terminal assembly capable of performing a current shunting function in view of the disadvantages of the prior art, which can additionally shunt a current to other components in a single electrical connector to save space of an electronic apparatus. 
     To resolve the foregoing technical problem, one technical solution adopted in the present disclosure is to provide an electrical connector having a shunt structure. The electrical connector comprises an insulating housing and a plurality of electrical terminals. The insulating housing has a first side surface, a second side surface, and a third side surface. The first side surface has a plug input interface provided for insertion of a power supply component along a first direction. The first side surface is rectangular in shape and a length direction of the first side surface is perpendicular to the first direction. The third side surface has a shunt socket with at least one shunt slot. Each of the electrical terminals is an integrally formed structure and has an A contact portion, a B contact portion, a middle portion and a pin portion. The A contact portion, the B contact portion, and the pin portion is connected to the middle portion. Each of the A contact portions extends into the plug input interface along the first direction. Each of the pin portions extends out of the second side surface along a second direction perpendicular to the first direction. Each of the B contact portions extends into the shunt slot along a third direction perpendicular to the first direction. 
     To resolve the foregoing technical problem, another technical solution adopted in the present disclosure is to provide an electrical connector having a shunt structure, comprising an insulating housing, a first conductive terminal, and a second conductive terminal. The insulating housing has a first side surface, a second side surface, and a third side surface. The first side surface has a slot provided for insertion of a power supply component along a first direction. The first side surface is rectangular in shape and a length direction of the first side surface is perpendicular to the first direction. The third side surface a shunt slot. The first conductive terminal comprises a first A contact portion, a first B contact portion, a first middle portion, and a first pin portion. The first A contact portion, the first B contact portion, and the first pin portion are connected to the first middle portion. The first A contact portion comprises at least one first A contact arm, and the at least one first A contact arm extends into the slot along the first direction. The first B contact portion extends into the shunt slot along a second direction. The first pin portion extends out of the second side surface along a third direction. The first direction is perpendicular to the second direction and the third direction. The second direction and the third direction is parallel to each other and in opposite directions. The second conductive terminal is arranged side by side with the first conductive terminal and comprises a second A contact portion, a second B contact portion, a second middle portion, and a second pin portion. The second A contact portion, the second B contact portion, and the second pin portion are connected to the second middle portion. The second A contact portion comprises at least one second A contact arm, and the at least one second A contact arm extends into the slot along the first direction. The second B contact portion extends into the shunt slot along the second direction. The second pin portion extends out of the second side surface along the third direction. 
     In order to further understand the features and technical content of the present disclosure, refer to the following detailed description and drawings about the present disclosure. However, the provided drawings are only for reference and description, and are not used to limit the present disclosure. 
     These and other aspects of the present disclosure will become apparent from the following description of the embodiment taken in conjunction with the following drawings and their captions, although variations and modifications therein may be affected without departing from the spirit and scope of the novel concepts of the disclosure. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The described embodiments may be better understood by reference to the following description and the accompanying drawings, in which: 
         FIG. 1  is a three-dimensional schematic view of an electrical terminal assembly according to a first embodiment of the present disclosure. 
         FIG. 2  is a three-dimensional schematic view of a first electrical terminal according to the first embodiment of the present disclosure. 
         FIG. 3  is a three-dimensional schematic view of a second electrical terminal according to the first embodiment of the present disclosure. 
         FIG. 4  is a three-dimensional schematic view of an electrical terminal assembly according to a second embodiment of the present disclosure. 
         FIG. 5  is a three-dimensional schematic view of a first electrical terminal according to the second embodiment of the present disclosure. 
         FIG. 6  is a three-dimensional schematic view of a second electrical terminal according to the second embodiment of the present disclosure. 
         FIG. 7  is a three-dimensional schematic view of an electrical terminal assembly according to a third embodiment of the present disclosure. 
         FIG. 8  is a three-dimensional schematic view of a first electrical terminal according to the third embodiment of the present disclosure. 
         FIG. 9  is a three-dimensional schematic view of a second electrical terminal according to the third embodiment of the present disclosure. 
         FIG. 10  is a three-dimensional schematic view of an electrical terminal assembly according to a fourth embodiment of the present disclosure. 
         FIG. 11  is a three-dimensional schematic view of a first electrical terminal according to the fourth embodiment of the present disclosure. 
         FIG. 12  is a three-dimensional schematic view of a second electrical terminal according to the fourth embodiment of the present disclosure. 
         FIG. 13  is a three-dimensional schematic view of an electrical connector according to the present disclosure. 
         FIG. 14  is a schematic exploded view of an electrical connector, a matching component, and a second electrical connector according to the present disclosure. 
         FIG. 15  is a schematic diagram of an electrical connector being connected to a matching component and a second electrical connector according to the present disclosure. 
         FIG. 16  is a perspective view showing the connector assembly having the shunt structure being partially assembled according to a fifth embodiment of the present disclosure; 
         FIG. 17  is a sectional view taken along line XVII-XVII of  FIG. 16  according to the present disclosure; 
         FIG. 18  is a perspective view showing the connector assembly having the shunt structure being partially assembled according to a sixth embodiment of the present disclosure; 
         FIG. 19  is a sectional view taken along line XIX-XIX of  FIG. 18  according to the present disclosure; 
         FIG. 20  is a perspective exploded view of the connector assembly having the shunt structure according to a seventh embodiment of the present disclosure; 
         FIG. 21  is a perspective exploded view of the connector assembly having the shunt structure according to an eighth embodiment of the present disclosure; 
         FIG. 22  is a perspective assembled view of the connector assembly having the shunt structure according to the eighth embodiment of the present disclosure; 
         FIG. 23  is a sectional view taken along line XXIII-XXIII of  FIG. 22  according to the present disclosure; and 
         FIG. 24  is a perspective assembled view of the connector assembly having the shunt structure according to a ninth embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS 
     The present disclosure is more particularly described in the following examples that are intended as illustrative only since numerous modifications and variations therein will be apparent to those skilled in the art. Like numbers in the drawings indicate like components throughout the views. As used in the description herein and throughout the claims that follow, unless the context clearly dictates otherwise, the meaning of “a”, “an”, and “the” includes plural reference, and the meaning of “in” includes “in” and “on”. Titles or subtitles can be used herein for the convenience of a reader, which shall have no influence on the scope of the present disclosure. 
     The terms used herein generally have their ordinary meanings in the art. In the case of conflict, the present document, including any definitions given herein, will prevail. The same thing can be expressed in more than one way. Alternative language and synonyms can be used for any term(s) discussed herein, and no special significance is to be placed upon whether a term is elaborated or discussed herein. A recital of one or more synonyms does not exclude the use of other synonyms. The use of examples anywhere in this specification including examples of any terms is illustrative only, and in no way limits the scope and meaning of the present disclosure or of any exemplified term. Likewise, the present disclosure is not limited to various embodiments given herein. Numbering terms such as “first”, “second” or “third” can be used to describe various components, signals or the like, which are for distinguishing one component/signal from another one only, and are not intended to, nor should be construed to impose any substantive limitations on the components, signals or the like. 
     The following are specific embodiments for illustrating an implementation of “an electrical terminal assembly and an electrical connector” disclosed in the present disclosure. Those skilled in the art can understand the advantages and effects of the present disclosure from the content disclosed in this specification. The present disclosure can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present disclosure. In addition, as stated in advance, the drawings of the present disclosure are merely simple schematic illustrations, and are not drawn according to actual dimensions. The following embodiments will further describe the related technical content of the present disclosure in detail, but the disclosed content is not intended to limit the protection scope of the present disclosure. In addition, it should be understood that although terms such as “first”, “second”, and “third” may be used herein to describe various components, these components should not be limited by these terms. These terms are mainly used to distinguish one of components of a same structure from another component. For example, “a first A contact portion”, “a second A contact portion”, and “a third A contact portion” appearing below refer to naming distinction of a plurality of components with a same structure at different positions in a same embodiment of a component “A contact portion”. In addition, the term “or” used herein may include any one or a combination of a plurality of associated listed items, depending on an actual situation. 
     In the present disclosure, a connector assembly having a shunt structure includes a main connector and a shunt connector. The main connector has an input interface, an output interface, and a shunt interface. The main connector is electrically connected to a power supply component through the input interface located at a first side surface, so as to receive input of electric current or signals and output the received electric current or signals through the output interface located at a second side surface. Further, the received electric current may be partially outputted through the shunt interface located at a third side surface. It should be noted that the first side surface, the second side surface and the third side surface can be a complete surface or a part of a face of the main connector. That is, the first side surface, the second side surface and the third side surface can be located at different faces of the main connector or on the same face. A plurality of electrical terminals is provided in the main connector. An end of the electrical terminals is configured at the input interface, and another end of the electrical terminals is configured at the output interface. In this way, the electric current and/or the signals can be inputted through the input interface, and can then be transmitted to the output interface for output and transmitted to the shunt interface for shunting. Or, there is a plurality of power terminals provided for transmission of the electric current. Through this design, the connector assembly of the present disclosure allows the electric current (i.e., electricity) provided by the power supply component to be shunted in an easy manner, so as to decrease power loss. The power supply component of the connector assembly provided in the present disclosure can be components that are capable of providing the electric current (such as a matching connector or a power supplier), and thus allows for a wide range of application. The present disclosure will be illustrated by various embodiments described below. While naming of components may differ from one embodiment to another due to different application scenarios, the shunting function of the connector assembly is not affected. 
     First Embodiment 
     Referring to  FIG. 1  to  FIG. 3 , the first embodiment of the present disclosure provides an electrical terminal assembly T 1 , which includes a first electrical terminal  6  and a second electrical terminal  7 . The first electrical terminal  6  and the second electrical terminal  7  are both integrally formed structures. 
       FIG. 2  shows the first electrical terminal  6  of this embodiment. The first electrical terminal  6  includes a first A contact portion  61 , a first B contact portion  62 , a first middle portion  63 , and a first pin portion  64 . The first A contact portion  61 , the first B contact portion  62 , and the first pin portion  64  are connected to the first middle portion  63 . The first A contact portion  61  includes at least one first A contact arm  611 . A quantity of the first A contact arms  611  is not limited in the present disclosure. This embodiment uses two first A contact arms  611  as an example. The first B contact portion  62  includes two first B contact arms  621 . The first pin portion  64  includes a plurality of first pins  641 . Quantities of the first B contact arms  621  and the first pins  641  are not limited in the present disclosure. The two first B contact arms  621  are mirror symmetrical or substantially mirror symmetrical in shape on opposite sides of a YZ plane. The two first A contact arms  611  extend along a first direction (a positive X-axis direction), the two first B contact arms  621  extend along a second direction (a positive Z-axis direction), and the plurality of first pins  641  extend along a third direction (a negative Z-axis direction). The first direction and the second direction are preferably perpendicular to each other. The second direction and the third direction are preferably parallel to each other. In addition, the two first A contact arms  611  each have a contact region  611 A. Two opposite sides of the contact region  611 A are circular arc sides, and the two contact regions  611 A are preferably different in height in the Z-axis direction. 
     In continuation of the above, the first middle portion  63  includes a first main body region and a first turning region. The first main body region includes a first section  631  and a second section  632  and is substantially a plane. The first main body region extends along an XZ plane and is connected between the first B contact portion  62  and the first pin portion  64 . The first turning region is connected between the first main body region and the first A contact portion  61 . The first turning region includes a third section  633 . The first section  631  is connected between the first B contact portion  62  and the first pin portion  64 . The second section  632  is connected between the first section  631  and the third section  633 . The third section  633  is connected between the second section  632  and the first A contact portion  61 . Further, the first middle portion  63  has a first notch  630 , and the first notch  630  is located between the first section  631  and the second section  632 . The second section  632  is bent at a right angle with respect to the first section  631  toward the negative Z-axis direction. The first turning region further has a first turning segment  633   a,  and the first turning segment  633   a  is bent at a right angle with respect to the second section  632  (the first main body region) toward the positive Y-axis direction. In addition, the first middle portion  63  further includes a first positioning member  634 . The first positioning member  634  is a bump. The first positioning member  634  is located in the first turning region. The first positioning member  634  extends toward the positive Y-axis direction, and the first positioning member  634  and the second section  632  are respectively connected to two opposite sides of the third section  633 . A first groove  635  is formed between the first A contact portion  61  and the first middle portion  63 . The first groove  635  is adjacent to a bending region (that is, the first turning segment  633   a ) between the second section  632  and the third section  633 . The first section  631  and the third section  633  are respectively connected to two opposite sides of the second section  632  in the Z-axis direction (the second direction). The two first B contact arms  621  and the two first pins  641  are respectively located on two opposite sides of the first section  631 . 
       FIG. 3  shows the second electrical terminal  7  of this embodiment. The second electrical terminal  7  includes a second A contact portion  71 , a second B contact portion  72 , a second middle portion  73 , and a second pin portion  74 . The second A contact portion  71 , the second B contact portion  72 , and the second pin portion  74  are connected to the second middle portion  73 . The second A contact portion  71  includes at least one second A contact arm  711 . A quantity of the second A contact arms  711  is not limited in the present disclosure. In this embodiment, two second A contact arms  711  are used as an example. The second B contact portion  72  includes two second B contact arms  721 . The second pin portion  74  includes a plurality of second pins  741 . Quantities of the second B contact arms  721  and the second pins  741  are not limited in the present disclosure. The two second B contact arms  721  are mirror symmetrical or substantially mirror symmetrical in shape on opposite sides of the YZ plane. The two second A contact arms  711  extend along the first direction (the positive X-axis direction). The plurality of second B contact arms  721  extend along the second direction (the positive Z-axis direction). The two second pins  741  extend along the third direction (the negative Z-axis direction). In addition, the two second A contact arms  711  each have a contact region  711 A. Two opposite sides of the contact region  711 A are circular arc sides, and the two contact regions  711 A are preferably different in height in the Z-axis direction. 
     In continuation of the above, the second middle portion  73  includes a second main body region and a second turning region. The second main body region includes a fourth section  731  and a fifth section  732  and is substantially a plane. The second main body region extends along the XZ plane and is connected between the second B contact portion  72  and the second pin portion  74 . The second turning region is connected between the second main body region and the second A contact portion  71 . The second turning region includes a sixth section  733 . The fourth section  731  is connected between the second B contact portion  72  and the second pin portion  74 . The fifth section  732  is connected between the fourth section  731  and the sixth section  733 . The sixth section  733  is connected between the fifth section  732  and the second A contact portion  71 . The second middle portion  73  has a second notch  730 . The second notch  730  is located between the fourth section  731  and the fifth section  732 . The fifth section  732  is bent at a right angle with respect to the fourth section  731  toward the negative Z-axis direction. The second turning region further has a second turning segment  733   a.  The second turning segment  733   a  is bent at a right angle with respect to the fifth section  732  (the second main body region) toward the negative Y-axis direction. In addition, the second middle portion  73  further includes a second positioning member  734 . The second positioning member  734  is a bump. The second positioning member  734  is located in the second turning region and extends toward the negative Y-axis direction, and the second positioning member  734  and the fifth section  732  are respectively connected to two opposite sides of the sixth section  733 . A second groove  735  is formed between the second A contact portion  71  and the second middle portion  73 . The second groove  735  is adjacent to a bending region (that is, the second turning segment  733   a ) between the fifth section  732  and the sixth section  733 . The fourth section  731  and the sixth section  733  are connected to a same side of the fifth section  732 . The two second B contact arms  721  and the two second pins  741  are respectively located on two opposite sides of the fourth section  731 . 
       FIG. 1  shows that the first electrical terminal  6  and the second electrical terminal  7  are combined into the electrical terminal assembly T 1 . The first electrical terminal  6  and the second electrical terminal  7  are arranged side by side along the Y-axis direction, and the first electrical terminal  6  and the second electrical terminal  7  are not in contact with each other (with no physical contact). The second notch  730  and the first notch  630  are arranged side by side to form a limiting groove G. The electrical terminal assembly T 1  may be fixed inside a first electrical connector  1  (referring to  FIG. 13  first) through the design of the limiting groove G, the first positioning member  634 , and the second positioning member  734 . In addition, the first section  631  and the fourth section  731  are substantially higher than the first A contact portion  61  and the second A contact portion  71  in the positive Z-axis direction (the second direction). Therefore, the first middle portion  63  and the second middle portion  73  are more securely fixed inside the first electrical connector  1  by forming a positioning surface (along the XZ plane) on the first section  631  and the fourth section  731 . In addition, the first positioning member  634  and the second positioning member  734  protrude more toward an outer side of the electrical terminal assembly (that is, toward the positive and negative Y-axis directions) than the second middle portion  73  and the first middle portion  63 . That is, if a central plane (not shown in the figure) between the first section  631  and the fourth section  731  is defined on the XZ plane, on the positive Y-axis, a distance between an outermost end of the first positioning member  634  and the central plane is greater than a distance between an outermost end of the second middle portion  73  and the central plane; on the negative Y-axis, a distance between an outermost end of the second positioning member  734  and the central plane is greater than a distance between an outermost end of the first middle portion  63  and the central plane, so that the first positioning member  634  and the second positioning member  734  can provide additional positioning functions. Further, the two first A contact arms  611  of the first A contact portion  61  and the two second A contact arms  711  of the second A contact portion  71  are arranged in a slot H 1  (Referring to  FIG. 13 ) and opposite to each other in an up-and-down direction (in the Z-axis direction) to form a first port U 1 , for providing a mating surface parallel to an XY plane. The two first B contact arms  621  of the first B contact portion  62  and the two second B contact arms  721  of the second B contact portion  72  are arranged opposite to each other to provide a B contact portion that in a shunt slot H 2  (referring to  FIG. 13 ) and form a second port U 2 , for providing a mating surface parallel to the YZ plane. Therefore, the first main body region of the first middle portion  63  and the second main body region of the second middle portion  73  are perpendicular to the mating surface of the first port U 1 , and are also perpendicular to the mating surface of the second port U 2 . The first port U 1  may be used for an external electrical connector (or a power supply unit (PSU)) to be plugged in along the negative X-axis direction (that is, parallel to a direction of arrangement of the two first pins  641  and the two second pins  741 ). The external electrical connector (or the PSU) is plugged into the first port U 1  to be in physical contact with the contact regions  611 A of the first A contact arms  611  and the contact regions  711 A of the second A contact arms  711 . The second port U 2  may be used for a second electrical connector  3  (referring to  FIG. 13  again) to be plugged in along the negative Z-axis direction. The second electrical connector  3  is plugged into the second port U 2  to be in physical contact with the contact regions  621 A of the first B contact arm  621  and the contact regions  721 A of the second B contact arm  721 . The two first pins  641  of the first pin portion  64  and the two second pins  741  of the second pin portion  74  may be used for being plugged into an external circuit board. Among the contact regions  611 A of the two first A contact arms  611  and the contact regions  711 A of the two second A contact arms  711 , a contact region distance between the contact regions  611 A and  711 A on a same side (one pair) is smaller than a contact region distance between the contact regions  611 A and  711 A on another other same side (another pair). In other words, a contact region distance is defined between each first A contact pin  611  and a corresponding second A contact pin  711 , and at least two adjacent ones of the contact region distance are different, so that an insertion force required for the external electrical connector (or the PSU) to perform mating can be reduced. 
     Second Embodiment 
     Referring to  FIG. 4 ,  FIG. 5 , and  FIG. 6 , the second embodiment of the present disclosure provides an electrical terminal assembly T 2 , which includes a first electrical terminal  6  and a second electrical terminal  7 . The first electrical terminal  6  of the electrical terminal assembly T 2  has a similar structure to the first electrical terminal  6  of the electrical terminal assembly T 1 , and the second electrical terminal  7  of the electrical terminal assembly T 2  has a similar structure to the second electrical terminal  7  of the electrical terminal assembly T 1 . The similarities thereof are not described again. 
     As shown in  FIG. 5 , a difference between the first electrical terminal  6  of the electrical terminal assembly T 2  and the first electrical terminal  6  of the electrical terminal assembly T 1  lies in that the first electrical terminal  6  of the electrical terminal assembly T 2  further includes a third B contact portion  65 . Moreover, the first section  631  of the first middle portion  63  extends longer to form an elongated segment, and the third B contact portion  65  is connected to the elongated segment of the first section  631  and extends along the second direction (the positive Z-axis direction). Specifically, the third B contact portion  65  includes two third B contact arms  651  that are mirror symmetrical or substantially mirror symmetrical in shape on the two opposite sides of the YZ plane, and the first section  631  is folded (or in other words, the elongated segment of the first section  631  is bent toward the positive X-axis direction), so that the two first B contact arms  621  respectively overlap the two third B contact arms  651 . 
     As shown in  FIG. 6 , the second electrical terminal  7  of the electrical terminal assembly T 2  further includes a fourth B contact portion  75 , the fourth section  731  of the second middle portion  73  extends longer, and the fourth B contact portion  75  is connected to an elongated segment of the fourth section  731  and extends along the second direction (the positive Z-axis direction). The fourth B contact portion  75  includes two fourth B contact arms  751  that are mirror symmetrical or substantially mirror symmetrical in shape on the two opposite sides of the YZ plane, and the fourth section  731  is folded (or in other words, the elongated segment of the fourth section  731  extends toward the positive X-axis direction), so that the two second B contact arms  721  respectively overlap the two fourth B contact arms  751 . Referring to  FIG. 4 , the two first B contact arms  621  and the two third B contact arms  651  of the first B contact portion  62  are arranged opposite to the two second B contact arms  721  and the two fourth B contact arms  751  of the second B contact portion  72  and jointly form a second port U 2 , for providing a mating surface along the YZ plane. In the present disclosure, through the design of the two third B contact arms  651  and the two fourth B contact arms  751 , a maximum current that the electrical terminal assembly can provide through the second port U 2  is increased by increasing a contact area between the second port U 2  and the second electrical connector  3 . 
     Third Embodiment 
     Referring to  FIG. 7 ,  FIG. 8 , and  FIG. 9 , the third embodiment of the present disclosure provides an electrical terminal assembly T 3 , which includes a first electrical terminal  6  and a second electrical terminal  7 . The first electrical terminal  6  of the electrical terminal assembly T 3  has a similar structure to the first electrical terminal  6  of the electrical terminal assembly T 2 , and the second electrical terminal  7  of the electrical terminal assembly T 3  has a similar structure to the second electrical terminal  7  of the electrical terminal assembly T 2 . The similarities thereof are not described again. 
     As can be observed from a comparison of  FIG. 7  and  FIG. 4 , in the electrical terminal assembly T 2 , the first section  631  of the first middle portion  63  of the first electrical terminal  6  and the fourth section  731  of the second middle portion  73  of the second electrical terminal  7  are bent toward an inner side of the electrical terminal assembly T 2  (or in other words, the first section  631  and the fourth section  731  are folded toward a direction facing each other). Conversely, in the electrical terminal assembly T 3 , the first section  631  of the first middle portion  63  of the first electrical terminal  6  and the fourth section  731  of the second middle portion  73  of the second electrical terminal  7  are bent toward an outer side of the electrical terminal assembly T 3  (or in other words, the first section  631  and the fourth section  731  are bent toward a direction facing away from each other). 
     It should be noted that, the foregoing disclosures concerning the second and third embodiments are only two possible embodiments and are not intended to limit the present disclosure. In other embodiments, the first section  631  of the first middle portion  63  of the first electrical terminal  6  and the fourth section  731  of the second middle portion  73  of the second electrical terminal  7  can also be bent toward a same direction, such as being bent toward the positive Y-axis direction (e.g., an electrical terminal assembly T 2 ′ in  FIG. 13 ), or being bent toward the negative Y-axis direction (e.g., an electrical terminal assembly T 3 ′ in  FIG. 13 ). In addition, the first section  631  and the second section  731  may also be folded two or more times, and more B contact arms overlap each other to form the second port U 2 , so as to provide a larger current. 
     Fourth Embodiment 
     Referring to  FIG. 10  to  FIG. 12 , the fourth embodiment of the present disclosure provides an electrical terminal assembly T 4 , which includes a first electrical terminal  6  and a second electrical terminal  7 . The first electrical terminal  6  of the electrical terminal assembly T 4  has a similar structure to the first electrical terminal  6  of the electrical terminal assembly T 1 , and the second electrical terminal  7  of the electrical terminal assembly T 4  has a similar structure to the second electrical terminal  7  of the electrical terminal assembly T 1 . The similarities thereof are not described again. 
     As shown in  FIG. 11 , a difference between the first electrical terminal  6  of the electrical terminal assembly T 4  and the first electrical terminal  6  of the electrical terminal assembly T 1  lies in that the first B contact portion  62  of the first electrical terminal  6  of the electrical terminal assembly T 4  further includes a first bending segment  622 , and the first bending segment  622  is connected between the first section  631  of the first middle portion  63  and the two first B contact arms  621  of the first B contact portion  12 . The first bending segment  622  is bent toward the positive Y-axis direction with respect to the first section  631  of the first extension portion  63 , and the two first B contact arms  621  are bent toward the positive Z-axis direction with respect to the first bending segment  622 . In addition, a third groove  623  is located between the first bending segment  622  and the two first B contact arms  621  and adjacent to the first bending segment  622 . 
     As shown in  FIG. 12 , a difference between the second electrical terminal  7  of the electrical terminal assembly T 4  and the second electrical terminal  7  of the electrical terminal assembly T 1  lies in that the second B contact portion  72  of the second electrical terminal  7  of the electrical terminal assembly T 4  further includes a second bending segment  722 , and the second bending segment  722  is connected between the fourth section  731  of the second middle portion  73  and the two second B contact arms  721  of the second B contact portion  72 . The second bending segment  722  is bent toward the negative Y-axis direction with respect to the fourth section  731 , and the two second B contact arms  721  are bent toward the positive Z-axis direction with respect to the second bending segment  722 . In addition, a fourth groove  723  is formed between the second bending segment  722  and the two second B contact arms  721 , and the fourth groove  723  is adjacent to the second bending segment  722 . 
     Further, as shown in  FIG. 10 , when the first electrical terminal  6  and the second electrical terminal  7  form the electrical terminal assembly T 4 , the second B contact portion  72  and the first B contact portion  71  are arranged side by side along the first direction (the positive X-axis direction) and form a second port U 2 , for providing a mating surface parallel to the YZ plane. In addition, due to the design of the first bending segment  622  and the second bending segment  722 , the two first B contact arms  621  and the two second B contact arms  721  in this embodiment are arranged along the Y-axis (in contrast, the two first B contact arms  621  and the two second B contact aims  721  in the electrical terminal assembly T 1  are arranged along the X-axis) and are mirror symmetrical. 
     Subsequently, referring to  FIG. 13  to  FIG. 15 , the present disclosure provides the first electrical connector  1 , which includes an insulating housing H and a plurality of electrical terminal assemblies. Any one of the plurality of electrical terminal assemblies can be the electrical terminal assembly T 1 , T 2 , T 3 , or T 4  (or T 2 ′ and T 3 ′) in the foregoing first to fourth embodiments. The insulating housing H has a slot H 1  on a front side surface that is rectangular in shape and at least one adaptor socket on a top side surface. Each of the adaptor sockets is rectangular in shape, and has two lateral walls and two limiting side walls that define at least one shunt slot H 2  therein. A length direction of the first side surface is parallel to a circuit board P (Referring to  FIG. 24 ). The slot H 1  faces the first direction (positive X-axis direction) and corresponds to the first port U 1 ; that is, the slot H 1  communicates with the first port U 1 . The shunt slot H 2  faces the second direction (positive Z-axis direction) and corresponds to the second port U 2 ; that is, the shunt slot H 2  communicates with and is parallel to the second port U 2 . 
     In continuation of the above, both the slot H 1  and the shunt slot H 2  are used as plug-in input interfaces for electrical connection of a mating component. For example, the slot H 1  may be a card edge or a plug-in input interface of a power-supply board, for allowing a matching component (not shown in the figure) to be plugged in along a plug-in direction (negative X-axis). The matching component can be a matching connector or an output end of a power supplier, such as a card edge interface of an output end of a power supplier adopting the CRPS (common redundant power supply). In other words, the slot  11  is a plug input interface of a card edge, a power board, or a busbar. The matching component is inserted into the slot H 1  and then is further plugged into the first port U 1 , so as to be electrically connected to the electrical terminal assembly (T 1  to T 4 ). In addition, for example, each shunt slot H 2  may be used for a second electrical connector  3  to be plugged in (therefore, multiple ones of shunt slot H 2  may be used for multiple ones of the second electrical connector  3  to be plugged in). The second electrical connector  3  may be, for example, an external electrical connector with a cable or a bus bar. The second electrical connector  3  is inserted into the slot H 1 , and then is further plugged into the second port U 2 , so as to be electrically connected to the electrical terminal assembly (T 1  to T 4 ). In addition, the first pin portion  64  and the second pin portion  74  are used for being plugged into a circuit board (not shown in the figure). As described in the foregoing embodiment, each electrical terminal assembly provides a plurality of pins that are arranged along the X-axis and are be parallel with a plug-in direction of the first port U 1 . 
     Therefore, the first electrical connector  1  of the present disclosure is actually a shunt connector, which can transmit, to a plurality of second electrical connector  3  through a plurality of electrical terminal assemblies, a power supply (or a signal) provided by the matching component (such as a PSU), so as to shunt a current or transfer the signal. 
     Fifth Embodiment 
     Referring to  FIG. 16  and  FIG. 17 , a fifth embodiment of the present disclosure provides a connector assembly having a shunt structure, which includes a first connector  1   a  and at least one second connector  3   a.  The first connector  1   a  includes the first insulating housing  10  and a plurality of electrical terminals in pairs, and at least one adapter socket  10 T. Each pair of the electrical terminals has an A contact portion, a B contact portion, a middle portion and a pin portion. In the present embodiment, the electrical terminals are divided into a plurality of first electrical terminals  20  and a plurality of second electrical terminals  20 S that are arranged in pairs. This embodiment uses two second connector  3   a  as an example. Each of two second connectors  3   a  includes the second insulating housing  30 . The bottom view of the second insulating housing  30  is rectangular in shape. The first insulating housing  10  has a first side surface and a second side surface. The first side surface has a plug side that provides a slot H 1 , so as to be electrically connected to a matching component (e.g. a power supply component). The second side surface has an output interface, which is used to output electric current and/or signals provided by the matching component. The first connector  1   a  may be called a connector having a shunt structure. In addition, the second connector  3   a  may be called a shunt device. The shunt device is mated with the adapter socket, so as to shunt electric current of the connector. 
     In the present embodiment, the first insulating housing  10  further has a top surface and a bottom surface opposite to the top surface. The first connector la is connected to a circuit board P. The input interface is a slot H 1 , and the output interface is located at the bottom surface. The slot H 1  is communicated with the plug side and the bottom surface. The slot H 1  allows the matching component (not shown in the figures) to insert along a plug-in direction. The slot H 1  can function as a power input interface and/or a signal input interface. Or, a plurality of the slots H 1  may respectively function as the power input interface or the signal input interface. Each of the first electrical terminals  20  has a first A contact portion  21 , each of the second electrical terminals  20 S has a second A contact portion  21 S. The first A contact portion  21  and the second A contact portion  21 S extends into the slot H 1  (i.e., the plug input interface) and a first pin portion  22  and a second pin portion  22 S that extends to the bottom surface of the first insulating housing  10  (i.e., the output interface). The first A contact portions  21  and the first pin portion  22  are electrically connected to each other, and the second A contact portions  21 S and the second pin portion  22 S are electrically connected to each other. In the present embodiment, the bottom surface of the first insulating housing  10  functions as a power output interface and/or a signal output interface. 
     In the present embodiment, the first A contact portions  21  of the first electrical terminals  20  and the second A contact portions  21 S of the second electrical terminals  20 S are located at the input interface. Referring to  FIG. 17 , the second electrical terminals  20 S are provided below the first electrical terminals  20 . The first electrical terminals  20  and the second electrical terminals  20 S that are arranged in pairs each have a first A contact portion  21  and a second A contact portion  21 S, which jointly form one planar contact area and define a slot therebetween, which is electrically connected to the matching component when the matching component is inserted thereinto. For example, the first A contact portions  21  and the second A contact portions  21 S jointly form one planar contact surface that is parallel to the circuit board P (that is, the planar contact surface is parallel to the plug-in direction. Alternatively, the first A contact portions  21  and the second A contact portions  21 S in pair respectively form a plurality of the planar contact surfaces that are perpendicular to the circuit board P. The first A contact portions  21  and the second A contact portions  21 S are electrically connected to a power potential or a ground potential of the matching component. Such a configuration allows for insertion of the matching component, e.g., terminals of a plug connector, a power board, or a busbar. That is, the matching component has a plate-like terminal or a plurality of terminals arranged on the same plane, or has a plurality of terminals each having at least one planar contact surface, so as to be mated with the input surface of the connector assembly of the present disclosure. The input interface may have one or more slots that are parallel to the circuit board P, or can be multiple slots that are perpendicular to the circuit board P. In applications where high power is required, thickness of the first A electrical terminal  20  and the second electrical terminal  20 S (i.e., a thickness that is perpendicular to a direction of the slot) are greater than or equal to 0.3 mm, and preferably greater than or equal to 0.6 mm. To prevent excessive insertion force, the thickness of the first A electrical terminal  20  and the second electrical terminal  20 S are less than or equal to 2 mm, and preferably less than or equal to 1 mm. In this way, the first A electrical terminal  20  and the second electrical terminal  20 S are much improved and have a balance between the normal force when being combined with the matching component and the ability to provide the electric current. In addition, each of the first A contact portion  21  of the first electrical terminal  20  and each of the second A contact portion  21 S of second electrical terminal  20 S can include a plurality of elastic arms, so as to prevent any excessive insertion force. In addition, in an application where there is only one slot, significant differences between insertion forces at two ends of the contact surface of the slot which are caused by slanting of the planar contact surface due to assembly tolerance can be prevented. 
     The first pin portion  22  of the first electrical terminals  20  and the second pin portion  22 S of the second electrical terminals  20 S extend out of the second side surface, and form one output interface that is connected to the circuit board P. The method of connection can be welding or press fit. Therefore, the first pin portion  22  and the second pin portion  22 S can be welding pins or press-fit pins. When the first pin portion  22  and the second pin portion  22 S are welding pins, the first pin portion  22  and the second pin portion  22 S are connected to the circuit board P by through-hole welding and/or surface mount technology. The first connector  1   a  can be connected to the circuit board P in a vertical manner or a right-angle manner. That is, the first pin portion  22  and the second pin portion  22 S can have 90-degree bent portions or can be in a linear shape. When the first pin portion  22  and the second pin portion  22 S are in a linear shape (not shown in the figures), the second side surface and the first side surface are oppositely located. At this time, the plug-in direction is perpendicular to a surface of the circuit board P, and insertion of the matching component is along the plug-in direction. When the first pin portion  22  and the second pin portion  22 S have 90-degree bent portions (as shown in  FIG. 17 ), the second side surface is located at the bottom surface. The bent portions may be inside the insulating housing  10 , so as to protect and support (or fix) the first pin portion  22  and the second pin portion  22 S. At this time, the plug-in direction is parallel to the surface of the circuit board P, and insertion of the matching component is along the plug-in direction. In the present embodiment, the first connector  1   a  is connected to the circuit board P in an offset manner as shown in  FIG. 17 . That is to say, the bottom surface has a first bottom surface area and a second bottom surface area (the second side surface), and the first pin portion  22  and the second pin portion  22 S extend outward from the second bottom surface area. A distance between the second bottom surface area and the top surface is preferably less than a distance between the first bottom surface area and the top surface, so as to reduce an overall height of the first connector  1   a  being connected to the circuit board P. The top surface may be an even surface, or may be divided into a first top surface area and a second top surface area of different height levels. The first top surface area and the first bottom surface area are oppositely located, and the second top surface area and the second bottom surface area are oppositely located. 
     The adapter socket  10 T has at least one shunt slot and is used as a shunt socket and is located on a third side surface of the first insulating housing  10 , so as to allow the second connector  3   a  (or called a shunt connector) to be detachably connected to the first connector  1   a  and allow a second electrical terminal of the second connector  3   a  to be electrically connected to at least some of the first electrical terminals  20  of the first connector  1   a.  The third side surface is preferably a surface on a face different from where the first side surface of the input interface of the first connector  1   a  is on and different from where a surface of the second side surface of the output surface is on. For example, the first side surface is a front side surface, the second side surface is a bottom surface, and the third side surface can be a top surface or a rear side surface that is opposite to the front side surface. In the embodiment of  FIG. 16 , the adapter socket  10 T is located on the top surface. 
     The first adapter socket  10 T is provided for insertion of the second connector  3   a,  so as to be electrically connected to at least one of the electrical terminals. The adapter socket  10 T has two lateral walls  13 , two limiting side walls  12 , and at least one exposed area  14  that is rectangular in shape. The two lateral walls  13  and the two limiting side walls  12  are connected and have the exposed area  14  surrounded therein. Each of the exposed areas  14  has a shunt slot, and another end of the shunt slot is in the exposed hole (not shown in the figures) on the top surface of the first insulating housing  10 . Two adjacent shunt slots are separated by a separating wall  141 . In the present embodiment, the separating wall  141  is connected to the two lateral walls  13 , and extends to a top surface of the adapter socket  10 T to completely separate the two adjacent shunt slots. The shunt slots are in spatial communication with an input interface and an output interface of the first connector  1   a.  A length direction of the shunt slots is parallel to a direction of the lateral walls  13 . A forked contact member  26  is additionally disposed on a top surface of the middle portion  23  of the first electrical terminal  20 . The forked contact member  26  has a level portion  261  and a pair of first and second B contact arms  262 . The B contact arms  262  respectively extend upward from two sides of the level portion  261  into the shunt slot through the exposed hole. A plug space within the limiting side walls  12  and the lateral walls  13  is defined by the B contact arms  262 , and the plug space is parallel to the two lateral walls  13 . The level portion  261  is connected to the middle portion  23  of the first electrical terminal  20 . A hunt electrical terminal  40  has a shunt contact portion  42  and a shunt leg  43  that extends from the second contact portion  42 . In addition, the shunt contact portion  42  of the shunt electrical terminal  40  of the second connector  3   a  is plate-shaped, and is bent and extends downward. That is, the shunt electrical terminal  40  is L-shaped. The second leg  43  (or called a shunt output interface  302 ) extends out of a side surface of the second insulating housing  30 , so as to be connected to at least one wire cable C. The second insulating housing  30  has two blocking walls  36  additionally formed on two sides (preferably two long sides) of the shunt contact portion  42 . The shunt contact portion  42  is parallel to the blocking walls  36 , i.e., being parallel to long sides of the bottom of the second insulating housing  30 . At least one clamping arm  34  is located on a side (preferably on a long side) of the second connector  3   a  and functions as a positioning portion. 
     In the present embodiment, during the assembling process, the second connector  3   a  is plugged into the first connector  1   a  from top to bottom, the shunt contact portion  42  located at the bottom of the shunt electrical terminal  40  is inserted into the middle of the forked contact member  26  and is electrically connected to the B contact arms  262 , and the blocking walls  36  are located on outer sides of the two lateral walls  13 . In the present embodiment, the clamping arm  34  exhibits an elastic arm shape and is formed at the front end surface of the second insulating housing  30  (i.e., the long side of the rectangular second insulating housing  30 ). At least one clamping portion  124  is protruded from a surface of the first insulating housing  10  (i.e., being located on an outer surface of the lateral wall  13 ) and may function as mistake-proofing keys, and are different from one another to achieve a mistake-proofing effect by being different in terms of shape, position, or quantity. When the second connector  3   a  is inserted downward to the clamping position, only the correct second connector  3   a  can be inserted into and an end (a lower end) of the clamping arm  34  can be clamped with the clamping portion  124 . Since other connectors include incompatible positioning portions (or the positioning member is not mated with the positioning portion), a correct or complete insertion cannot take place and so the mistake-proofing effect is achieved. The operator can press an upper end of the clamping arm  34  to remove the clamped state. In order for the operator to conveniently press the clamping arm  34 , a pressing portion  347  is provided on the upper end of the clamping arm  34 , and extends and protrudes outward from the clamping arm  34  (i.e., being distant from the second connector  3   a ). That is, the pressing portion  347  protrudes from the front end surface of the second insulating housing  30 , which is convenient for the operator to make sure of a pressing point and an application of force when pressing. Furthermore, a location of the second insulating housing  30  that corresponds to the pressing portion  347  can also have a recessed space. The recessed space is formed by the front end surface of the second insulating housing  30  being concaved inward. In this way, when the operator presses the pressing portion  347  toward the second insulating housing  30 , a fingertip of the operator can be accommodated. 
     Sixth Embodiment 
     Referring to  FIG. 18  and  FIG. 19 , a sixth embodiment of the present disclosure provides a connector assembly having a shunt structure, which includes a first connector  1   b  and a second connector  3   b.  The first connector  1   b  includes the first insulating housing  10  and the plurality of first power terminals  20 ′. The second connector  3   b  includes the second insulating housing  30  Similar to the previous embodiment, the adapter socket  10 T includes the two lateral walls  13  and the two limiting side walls  12  that are arranged to form a rectangular shape, and at least one exposed area  14  disposed therein. Each of the exposed areas  14  has at least one shunt slot configured therein, and another end of the shunt slot is connected to the exposed hole  140 . What is different from the previous embodiment is that no wire cable is used in the present embodiment. That is, instead of using stranded conductive fibers, plate metals Cf (e.g., copper bars) are used to transmit the electric current, so that a greater electric current can be transmitted. An end of the plate metals Cf is utilized as the shunt power terminals  40 ′ in the second connector  3   b,  and the shunt contact portions  42  thereof are perpendicular to the bottom surface of the second insulating housing  30  and are inserted into the shunt slot, so as to be electrically connected to the first power terminals  20 ′ of the first connector  1   b  by being mated with at least one of the second A contact portion and the second B contact portion (i.e., the forked contact member  26 ) of the adapter socket  10 T. In other words, the shunt power terminals  40 ′ of the second connector  3   b  are an extension of the plate metals Cf While one end of the shunt power terminals  40 ′ (utilized as the shunt contact portions  42 ) is inserted into a corresponding shunt slot of the adapter socket  10 T, another end thereof (utilized as the shunt legs  43 ) extends out of the second insulating housing  30  and is electrically and directly connected to the electronic component without a wire cable. Referring to  FIG. 18 , since there are two shunt slots located on the same plane, front ends of the shunt contact portions  42  of the shunt power terminals  40 ′ are also located on the same plane. In order for the plate metals of the same direction to be arranged in a staggered manner, at least one of the plate metals Cf has a stepped structure configured along a direction that is perpendicular to a plate-shaped surface of the plate metals Cf (that is, being perpendicular to a direction of the shunt slots in the present embodiment). In this way, the plate metals Cf are arranged in a staggered manner at positions which are perpendicular to the plate-shaped surface. The shunt legs  43  of the plate metals Cf each have at least one bent portion or are L-shaped, so that the plate metals Cf can change a direction along the adjacent two sides of the second insulating housing  30 . Accordingly, the direction of the plate metals Cf can be adjusted when an overall size of the second connector  3   b  is at its minimum. 
     A clamping method of the present embodiment is similar to that of the previous embodiment, and will not be reiterated herein. 
     Seventh Embodiment 
     Referring to  FIG. 20 , a seventh embodiment of the present disclosure provides a connector assembly having a shunt structure, which includes a first connector  1   c  and a second connector  3   c.  The first connector  1   c  includes the first insulating housing  10  and the plurality of first power terminals  20 ′. The second connector  3   c  includes the second insulating housing  30 . An end (the shunt contact portion  42  which is located at the bottom of the second insulating housing  30 ) of the plate-shaped shunt power terminal  40 ′ is inserted into the corresponding shunt slot of the adapter socket  10 T, and another end thereof is used as the shunt leg  43  to extend out of the rear end surface of the second insulating housing  30 . The rear end surface and the bottom are adjacent to each other, and are preferably perpendicular to each other. What is different from the previous embodiment is that one of the two shunt power terminals  40 ′ have two shunt contact portions  42 , which are configured on left and right sides of the shunt contact portion  42  of another one of the two shunt power terminals  40 ′. The middle shunt contact portion  42  is inserted into a middle shunt slot of the adapter socket  10 T, and the shunt contact portions  42  on the left and right sides are respectively inserted into two shunt slots on left and right sides. The two shunt slots are each separated from the middle shunt slot by the separating wall  141 . One of the two shunt power terminals  40 ′ is electrically connected to the power potential, and another one of the shunt power terminals  40 ′ is electrically connected to the ground potential. For example, the shunt power terminal  40 ′ that has the two shunt contact portions  42  on the left and right sides is electrically connected to the ground potential, and the shunt power terminal  40 ′ that has the middle shunt contact portion  42  is electrically connected to the power potential. At least one of the two lateral walls  13  is configured to have at least one guide slot  134 , and the second connector  3   c  has a corresponding guided portion (not shown in the figures) that is located on a long side of the rectangular second insulating housing  30 . When the second connector  3   c  is inserted into the adapter socket  10 T, the guided portion slides along the guiding slot  134  to provide a positioning function. A clamping method of the present embodiment is similar to that of the sixth embodiment, in which multiple groups of the clamping arms  34  and the clamping portions  124  are provided. 
     Eighth Embodiment 
     Referring to  FIG. 21  to  FIG. 23 , an eighth embodiment of the present disclosure provides a connector assembly having a shunt structure, which includes a first connector  1   d  and a second connector  3   d.  The first connector  1   d  includes the first insulating housing  10  and the plurality of first electrical terminals  20 . The second connector  3   d  includes the second insulating housing  30 . 
     Similar to the fifth embodiment, the forked contact member  26  is additionally disposed on the top surface of the middle portion  23  of the first electrical terminals  20 . The forked contact member  26  has the level portion  261  and the pair of B contact arms  262  that respectively extend out of the exposed hole from the two sides of the level portion  261  in an upward direction. The first electrical terminals  20  can be arranged with a second electrical terminal  20 S that in pairs to form a two-piece configuration, and the level portion  261  is connected to only the middle portion  23  of the first electrical terminals  20 . In addition, the shunt contact portion  42  of the shunt electrical terminal  40  of the second connector  3   d  is plate-shaped. After the second connector  3   d  is plugged into the first connector  1   d,  the forked contact member  26  clutches the plate-shaped shunt contact portion  42 . 
     Ninth Embodiment 
     Referring to  FIG. 24 , a Ninth embodiment of the present disclosure provides a connector assembly having a shunt structure, which includes a first connector  1   e  and a second connector  3   e.  The first connector  1   e  includes the first insulating housing  10 , the plurality of first electrical terminals  20 , the plurality of second electrical terminals  20 S, and a plurality of first signal terminals  50 . The first side surface of the first insulating housing  10  is rectangular in shape. The second connector  3   e  includes the second insulating housing  30 . The first connector  1   e  has two input interfaces, one of which is a power input interface and another one of which is a signal input interface Similarly, the first connector  1   e  has two output interfaces, one of which is a power output interface and another one of which is a signal output interface. 
     The power input interface and the signal input interface are both located at a first side surface of the first connector  1   e,  and are two independent shunt slots. The first signal terminals  50  are pins that can be used to transmit electric current signals less than 0 5 A. 
     It should be noted that, while the heat dissipation groove or the heat dissipation through hole is not specifically drawn in the figures for the fifth embodiment to the Ninth embodiment of the present disclosure, at least one of the heat dissipation groove or the heat dissipation through hole can be configured in the second insulating housing  30  (preferably being parallel or perpendicular to the bottom surface) in an actual application, as shown in the first to the fourth embodiments. 
     [Beneficial Effects of the Embodiments] 
     The present disclosure has the following beneficial effects: According to the electrical terminal assembly and the first electrical connector provided in the present disclosure, a first A contact portion and a second A contact portion are arranged side by side to form a first port for a matching component to be plugged in, a first B contact portion and a second B contact portion are arranged side by side and form a second port for a second electrical connector to be plugged in, and a first pin portion and a second pin portion are used for being plugged into a circuit board, to provide an electrical connector with an electrical terminal assembly capable of performing a current shunting function, which can additionally shunt a current to other components in a single electrical connector. Therefore, the first electrical connector provided in the present disclosure is an improvement over the prior-art electrical connector that usually transmits a current through only a single output interface. If the first electrical connector provided in the present disclosure is mounted in an electronic apparatus instead of the prior-art electrical connector, space of the electronic apparatus can be effectively saved. 
     The contents disclosed above are merely the preferred and feasible embodiments of the present disclosure, and do not limit the scope of the patent application of the present disclosure. Therefore, all equivalent technical changes made by using the contents of this specification and the drawings of the present disclosure are included in the scope of the patent application of the present disclosure. 
     The foregoing description of the exemplary embodiments of the disclosure has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. 
     The embodiments were chosen and described in order to explain the principles of the disclosure and their practical application so as to enable others skilled in the art to utilize the disclosure and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those skilled in the art to which the present disclosure pertains without departing from its spirit and scope.