Patent Publication Number: US-9899139-B2

Title: Magnetic component

Description:
BACKGROUND 
     1. Technical Field 
     The present disclosure relates to a magnetic component, in particular, to a magnetic component having a primary winding and a secondary winding, wherein the outlet terminals of the primary winding and those of the secondary winding are positioned at a same side. 
     2. Description of Related Art 
     Magnetic components are a necessary component in operating electrical equipment. Conventional electronic devices usually include many magnetic components, such as transformers. A transformer is a magnetic component capable of Electro-Magnetic Energy Conversion for adjusting the voltage into a suitable range. 
     When the electronic device wants to output the higher power, it needs many magnetic components connected in parallel and the secondary winding needs to adopt the divided winding, so that the outlet terminal of the electronic device outputs the needed current density. Because of the limitation of product process and height of the magnetic components, the magnetic components occupy bigger area in the circuit board. Besides, the primary side and the secondary side are separated by a partition plate of the magnetic component, to meet safety requirements, e.g., when the magnetic component is in high altitude above 5,000 meters, there is an official regulatory distance that must be kept between the primary side and the secondary side. However, the partition plate may cause a constant leakage inductance. The more the partition plate causes leakage inductance, the more the electronic device has power loss. Conversely, the less the partition plate causes leakage inductance, the less the electronic device has power loss. In order to decrease the leakage inductance caused by the partition plate for enhancing the conversion efficiency of the magnetic component, the winding of the magnetic component usually adopts the thicker thread diameter or winds around the corresponding winding section by a parallel wound method. Besides, the conventional magnetic component needs to increase the solder temperature in the manufacturing process, to ensure the yield rate of the solder. The windings of the magnetic component need to have a tube or insulating tape, to ensure the quality of the magnetic component. 
     SUMMARY 
     Accordingly, an objective of the instant disclosure is to provide a magnetic component, which can decrease the volume of the whole magnetic component without influencing conversion efficiency. The magnetic component does not suffer from the limitation of product process and height, and the output terminal of the electrical equipment can output the needed current density. 
     An exemplary embodiment of the instant disclosure provides a magnetic component. The magnetic component includes a bobbin, a magnetic core assembly, a first winding, and a second winding. The bobbin has a main body, a channel, and a pin holder. The main body has a primary winding section and a secondary winding section. The channel is configured for penetrating the main body. The pin holder is configured for being extended from a side of the main body. The magnetic core assembly is partially disposed in the channel. The first winding and the second winding have two outlet terminals. The first winding is configured for being wound around the primary winding section. The second winding is configured for being wound around the secondary winding section. Two outlet terminals of the first winding and two outlet terminals of the second winding are configured in the pin holder. 
     Another exemplary embodiment of the instant disclosure provides a magnetic component. The magnetic component includes a bobbin, a magnetic core assembly, a first winding, and a second winding. The bobbin has a main body, a channel, a first pin holder, and a second pin holder. The main body has a primary winding section and a secondary winding section. The channel is configured for penetrating the main body. The first pin holder is configured for being extended from a side of the main body. The second pin holder is configured for being extended from another side of the main body. The magnetic core assembly is partially disposed in the channel. The first winding and the second winding have two outlet terminals. The first winding is configured for being wound around the primary winding section. The second winding is configured for being wound around the secondary winding section. One of the two outlet terminals of the first winding are configured in the first pin holder, and the other of the two outlet terminals of the first winding are configured in the second pin holder; or the two outlet terminals of the first winding are configured in the first pin holder. The two outlet terminals of the second winding are configured in the first pin holder. Therefore, at least one outlet terminal of the first winding and two outlet terminals of the second winding are positioned at a same side. 
     In order to further understand the techniques, means and effects of the present disclosure, the following detailed descriptions and appended drawings are hereby referred to, such that, and through which, the purposes, features and aspects of the present disclosure can be thoroughly and concretely appreciated; however, the appended drawings are merely provided for reference and illustration, without any intention to be used for limiting the present disclosure. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The accompanying drawings are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure. 
         FIG. 1A  shows an exploded view of a magnetic component according to an exemplary embodiment of the present disclosure. 
         FIG. 1B  shows an assembled view of a magnetic component according to an exemplary embodiment of the present disclosure. 
         FIG. 1C  shows a bottom-side view of a bobbin according to an exemplary embodiment of the present disclosure. 
         FIG. 1D  shows a bottom-side view of a bobbin according to another exemplary embodiment of the present disclosure. 
         FIG. 1E  shows a bottom-side view of a bobbin according to another exemplary embodiment of the present disclosure. 
         FIG. 2A  shows an exploded view of a magnetic component according to another exemplary embodiment of the present disclosure. 
         FIG. 2B  shows an assembled view of a magnetic component according to another exemplary embodiment of the present disclosure. 
         FIG. 2C  shows a bottom-side view of a bobbin according to another exemplary embodiment of the present disclosure. 
         FIG. 2D  shows a bottom-side view of a bobbin according to another exemplary embodiment of the present disclosure. 
         FIG. 2E  shows a bottom-side view of a bobbin according to another exemplary embodiment of the present disclosure. 
         FIG. 2F  shows a bottom-side view of a bobbin according to another exemplary embodiment of the present disclosure. 
         FIG. 2G  shows a bottom-side view of a bobbin according to another exemplary embodiment of the present disclosure. 
     
    
    
     DESCRIPTION OF THE EXEMPLARY EMBODIMENTS 
     Reference will now be made in detail to the exemplary embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts. 
     This embodiment provides a magnetic component having a primary winding and a secondary winding. At least one outlet terminal of the primary winding and at least one outlet terminal of the secondary winding are positioned at a same side. When the electronic device with the magnetic component wants to output the higher power, the secondary winding is laterally added in the magnetic component. Compared with the conventional magnetic component, the magnetic component of the present disclosure does not suffer from the limitation of product process and height, to achieve the needed current density outputted from the outlet terminal of the electronic device. The magnetic component provided in the exemplary embodiment of the present disclosure is described in the following paragraphs. 
     Firstly, please refer to  FIGS. 1A and 1B , which show an exploded view and an assembled view of a magnetic component according to an exemplary embodiment of the present disclosure. As shown in  FIG. 1A , the magnetic component  100  is configured in the electrical equipment (e.g., the power supply), and uses Electro-Magnetic Energy Conversion for adjusting the voltage into a suitable range. The magnetic component  100  includes a bobbin  110 , a magnetic core assembly  120 , a housing  130 , a first winding ML 1 , and a second winding SL 1 . The bobbin  110  has a main body  112 , a channel  114 , and a pin holder  116 . 
     The channel  114  penetrates the main body  112 . In the present disclosure, the main body  112  is a bar-shaped structure. The pin holder  116  is extended from a side of the main body  112 , and has a plurality of pins  117  electrically connecting to the circuit board (not shown in FIGs), the first winding ML 1 , and the second winding SL 1 . In the present disclosure, the pin holder  116  is extended from the right-side of the main body  112 . The pin holder  116  can be extended from the left-side of the main body  112 , and the present disclosure is not limited thereto. 
     The magnetic core assembly  120  is partially disposed in the channel  114 . More specifically, the magnetic core assembly  120  is an EE-type, which includes a first magnetic core portion  121  and the second magnetic core portion  122 . The first magnetic core portion  121  has an axle center  121   a  and two side pillars  121   b . The second magnetic core portion  122  has an axle center  122   a  and two side pillars  122   b . The axle center  121   a  of the first magnetic core portion  121  and the axle center  122   a  of the second magnetic core portion  122  penetrate the channel  114  of the main body  112 . Two side pillars  121   b  and two side pillars  122   b  are respective configured to two sides of the main body  112  of the bobbin  110 . In the present disclosure, the magnetic core assembly  120  can also be UI-type, UU-type, EI-type, EER-type, EFD-type, or EED-type, and the present disclosure is not limited thereto. The housing  130  and the bobbin  110  are assembled with each other. The housing  130  has a hollow portion  132 . The bobbin  110  and the axle centers  121   a  and  122   a  of the magnetic core assembly  120  are disposed in the hollow portion  132 , to avoid the Magnetic Energy Conversion between the magnetic core assembly  120  and the bobbin  110  configured in the hollow portion  132  suffering from external disturbance. The housing  130  can be disposed according to the actual architecture of the magnetic component  100 , and is not limited to the examples provided by the exemplary embodiment. 
     The main body  112  has a plurality of winding sections, and the first winding ML 1  and the second winding SL 1  are respectively wound around the winding sections. The condition of the first winding ML 1  and the second winding SL 1  wound around the winding sections of the main body  112  will be described in the following paragraph. 
     Please refer to  FIG. 1C , which shows a bottom-side view of a bobbin according to an exemplary embodiment of the present disclosure. As shown in  FIG. 1C , the main body  112  has a primary winding section YN 1  and a secondary winding section YN 2 . The outer diameter of the primary winding section YN 1  and the outer diameter of the secondary winding section YN 2  are equivalent. The first winding ML 1  is wound around the primary winding section YN 1  far from the pin holder  116 , and has two outlet terminals A 1  and A 2 . The second winding SL 1  is wound around the secondary winding section YN 2  near to the pin holder  116 , and has two outlet terminals B 1  and B 2 . It is worth to note that two outlet terminals A 1  and A 2  of the first winding ML 1  and two outlet terminals B 1  and B 2  of the second winding SL 1  are respectively configured in one of the pins  117  of the pin holder  116 , so that the outlet terminals A 1  and A 2  of the first winding ML 1  and the outlet terminals B 1  and B 2  of the second winding SL 1  are positioned at a same side. More specifically, the secondary winding section YN 2  extends to an area AR on the pin holder  116 . The area AR is defined by lines LE 1  and LE 2  extending from the outer boundary of the secondary winding section YN 2  of the bobbin  110 . Two outlet terminals A 1  and A 2  of the first winding ML 1  are coupled to two of the pins  117  disposed outside the area AR, and two outlet terminals B 1  and B 2  of the second winding SL 1  are coupled to two of the pins  117  disposed inside the area AR, Accordingly, the housing  130  covers the bobbin  110 , the part of the magnetic core assembly  120 , the part of the first winding ML 1 , and the part of the second winding SL 1 , to become the magnetic component  100 , as shown in  FIG. 1B . In the present disclosure, the primary winding section YN 1  indicates the primary side winding section of the magnetic component  100 . The secondary winding section YN 2  indicates the secondary side winding section of the magnetic component  100 . The primary winding section YN 1  can be configured near to the position of the pin holder  116 , and the secondary winding section YN 2  can be configured far from the position of the pin holder  116 , and the present disclosure is not limited thereto. 
     In other disclosures, the magnetic component  100  further includes a third winding. The first winding, the second winding, and the third winding are alternately configured in the corresponding winding section. As shown in  FIG. 1D , the main body  112   a  of the bobbin  110   a  has one primary winding section YN 1  and two secondary winding sections YN 2  and YN 3 . The secondary winding section YN 2 , the primary winding section YN 1 , and the secondary winding section YN 3  are arranged in series starting from the pin holder  116   a , i.e., the secondary winding section YN 2  is arranged at a side of the primary winding section YN 1  and the secondary winding section YN 3  is arranged at another side of the primary winding section YN 1 . The first winding ML 1 , the second winding SL 1   a , and the third winding SL 1   b  are respectively wound around the primary winding section YN 1 , and the secondary winding sections YN 2  and YN 3 , so that the second winding SL 1   a , the first winding ML 1 , and the third winding SL 1   b  are arranged in series starting from the main body  112   a . The first winding ML 1  has two terminals A 1   a  and A 2   a , the second winding SL 1   a  has two terminals B 1   a  and B 2   a , and the third winding SL 1   b  has two terminals B 1   b  and B 2   b . It is worth to note that the outlet terminals A 1   a , A 2   a  of the first winding ML 1 , the outlet terminals B 1   a , B 2   a  of the second winding SL 1   a , and the outlet terminals B 2   a , B 2   b  of the third winding SL 1   b  are respectively configured in one of the pins  117   a  of the pin holder  116   a , so that the outlet terminals A 1   a , A 2   a , and the outlet terminals B 1   a , B 2   a , B 1   b , B 2   b  of the second and third windings SL 1   a  and SL 1   b  are positioned at a same side. 
     The order of the winding sections configured in the main body can be changed. For example, the primary winding section YN 1 , the secondary winding section YN 2 , and the secondary winding section YN 3  are arranged in series starting from the pin holder, i.e., the primary winding section YN 1  is arranged at a side of the secondary winding section YN 2 , and the secondary winding section YN 3  is arranged at another side of the secondary winding section YN 2 . The present disclosure is not limited thereto. Besides, the winding section of the third winding SL 1   b  can be changed to primary winding section (not shown in FIGs), so that the main body  112  of the bobbin  110   a  has two primary winding sections and one secondary winding section. Similarly, the number of the primary winding section and the secondary winding section can be changed. The present disclosure is not limited thereto. 
     In the following disclosure, a primary winding is taken as example of the first winding and a secondary winding is taken as example of the second winding. When the electrical equipment wants to output the higher power, the secondary winding section can be laterally added in the main bodies  112  and  112   a , and the second winding is wound around the added secondary winding section, i.e., the secondary winding is laterally added, to increase Electro-Magnetic Energy Conversion and to achieve the needed current density outputted from the outlet terminal of the electronic device. 
     Please refer to  FIGS. 1A, 1C, and 1D . The main body further has at least one partition plate configured in the common border between any adjacent winding sections, to separate the primary winding and the secondary winding and to meet safety requirements. As shown in  FIG. 1C , the common border between the primary winding section YN 1  and the secondary winding section YN 2  of the main body  112  configures a partition plate BD, to separate the first winding ML 1  (the primary side) and the second winding SL 1  (the secondary side). As shown in  FIG. 1D , the common borders among the primary winding section YN 1 , the secondary winding sections YN 2 , YN 3  of the main body  112   a  respectively configures partition plates BD 1 , to separate the second winding SL 1   a  (the secondary side), the first winding ML 1  (the primary side), and the third winding SL 1   b  (the secondary side). 
     Next, please refer to  FIG. 1E , which shows a bottom-side view of a bobbin according to another exemplary embodiment of the present disclosure. In the bobbin  110   b  shown in  FIG. 1E , the partition plate BD 2  of the main body  112   b  is different from the partition plate BD shown in  FIGS. 1A-1B  and the partition plates BD 1  shown in  FIG. 1C . The difference is that the partition plate BD 2  has a first sub-partition plate SBD 1  and a second sub-partition plate SBD 2 . The height of the first sub-partition plate SBD 1  is higher than the height of the second sub-partition plate SBD 2  and the first sub-partition plate SBD 1  and the second sub-partition plate SBD 2  are configured with each other, to form a ladder structure. This means that there is a drop height between the first sub-partition plate SBD 1  and the second sub-partition plate SBD 2 . With respect to structures and connection relationships of the pin holder  116   b , the pins  117   b , the first winding ML 1 , and the second winding SL 1  are the same as that of the pin holder  116 , the pins  117 , the first winding ML 1 , and the second winding SL 1  shown in  FIG. 1C , so detailed description is omitted. 
     Therefore, there is ladder structure formed between the first sub-partition plate SBD 1  and the second sub-partition plate SBD 2 , so that the Creepage Distance between the first winding ML 1  (the primary side) and the second winding SL 1  (the secondary side) is increased. Accordingly, the bobbin  110   b  meets the higher safety requirement using the same thickness of the partition plate BD 2 . Besides, when the electrical equipment wants to output higher power in the same layout area, it needs to decrease the power loss. At present, when electrical equipment has to operate in high altitude above 5,000 meters and simultaneously meet safety requirements, the distance between the partition plates needs to be increased, to achieve the official regulatory distance that must be kept between the primary and the secondary side. The aforementioned method may raise leakage inductance and then increases the power loss of the transformers, to increase the needed layout area. Therefore, under the ladder structure between the first sub-partition plate SBD 1  and the second sub-partition plate SBD 2 , when the thickness of the partition plate BD 2  of the bobbin  110   b  is decreased, the bobbin  110   b  can still meet the higher safety requirement for high-power electrical equipment configured in the high altitude above 5,000 meters. 
     Next, please refer to  FIGS. 2A and 2B , which show an exploded view and an assembled view of a magnetic component according to another exemplary embodiment of the present disclosure. As shown in  FIG. 2A , the magnetic component  200  is configured in the electrical equipment (e.g., the power supply), and uses Electro-Magnetic Energy Conversion for adjusting the voltage into a suitable range. The magnetic component  200  includes a bobbin  210 , a magnetic core assembly  220 , a housing  230 , a first winding ML 2 , a second winding SL 2   a , and a third winding SL 2   b . The bobbin  210  has a main body  212 , a channel  214 , a first pin holder  216 , and a second pin holder  218 . The magnetic core assembly  220  has a first magnetic core portion  221  and a second magnetic core portion  222 . The housing  230  has a hollow portion  232 . 
     The difference between the magnetic component  200  and the magnetic component  100  is that the first pin holder  216  is extended from the right side of the main body  212  and the second pin holder  218  is extended from the left side of the main body  212 . The main body  212  has a plurality of winding sections. The first winding ML 2 , the second winding SL 2   a , and the third winding SL 2   b  are respectively wound around the winding sections. The condition of the first winding ML 2 , the second winding SL 2   a , and the third winding SL 2   b  wound around the winding sections of the main body  212  will be described in the following paragraphs. 
     Please refer to  FIG. 2C , which shows a bottom-side view of a bobbin according to another exemplary embodiment of the present disclosure. According to the bobbin  210  shown in  FIG. 2C , the main body  212  has one primary winding section ZN 1  and two secondary winding sections ZN 2 , ZN 3 . The second winding SL 2   a  is wound around the secondary winding section ZN 2  near to the first pin holder  216 , and has two outlet terminals D 1   a , D 2   a . The third winding SL 2   b  is wound around the secondary winding section ZN 3  near to the second pin holder  218 , and has two outlet terminals D 1   b , D 2   b . The first winding ML 2  is wound around the primary winding section ZN 1  between the second winding SL 2   a  and the third winding SL 2   b , and has two outlet terminals C 1 , C 2 . 
     It is worth to note that the outlet terminal C 2  of the first winding ML 2  and the two outlet terminals D 1   a , D 2   a  of the second winding SL 2   a  are respectively configured in one of the pins  217  of the first pin holder  216 , so that the outlet terminal C 2  of the first winding ML 2  and the outlet terminals D 1   a , D 2   a  of the second winding SL 2   a  are positioned at a same side. Besides, the outlet terminal C 1  of the first winding ML 2  and the two outlet terminals D 1   b , D 2   b  of the third winding SL 2   b  are respectively configured in one of the pins  219  of the second pin holder  218 , so that the outlet terminal C 1  of the first winding ML 2  and the outlet terminals D 1   b , D 2   b  of the third winding SL 2   b  are positioned at a same side. The outer diameter of the primary winding section ZN 1  and the outer diameter of the secondary winding sections ZN 2  and ZN 3  are equivalent. More specifically, the secondary winding section ZN 2  extends to a first area AR 1  on the first pin holder  216  and extends to a second area AR 2  on the second pin holder  218 . The first area AR 1  is defined by lines LE 1  and LE 2  extending from the outer boundary of the secondary winding section ZN 2  of the bobbin  210 . The second area AR 2  is defined by the lines LE 1  and LE 2  extending from the outer boundary of the secondary winding section ZN 3 . One of the two outlet terminals C 2  of the first winding ML 2  is coupled to one pin  217  of the first pin holder  216  disposed outside the first area AR 1 . The other of the two outlet terminals C 1  of the first winding ML 2  is coupled to one pin  219  of the second pin holder  218  disposed outside the second area AR 2 . Two outlet terminals D 1   a  and D 2   a  of the second winding SL 2   a  are coupled to two pins  217  of the first pin holder  216  disposed inside the first area AR 1 . Two outlet terminals D 1   b  and D 2   b  of the second winding SL 2   b  are coupled to two pins  219  of the second pin holder  218  disposed inside the second area AR 2 , Accordingly, the housing  230  covers the bobbin  210 , the part of the magnetic core assembly  220 , the part of the first winding ML 2 , the part of the second winding SL 2   a , and the part of the third winding SL 2   b , to become the magnetic component  200 , as shown in  FIG. 2B . 
     In another disclosure, two outlet terminals C 1 , C 2  of the first winding ML 1  can be respectively configured in one of the pins of the same pin holder. Please refer to  FIG. 2D , the outlet terminal C 1  of the first winding ML 2  is configured in one of the pins  217  of the first pin holder  216 , so that the outlet terminals C 1 , C 2  of the first winding ML 2  and the outlet terminals D 1   a , D 2   a  of the second winding SL 2   a  are positioned at a same side. The outlet terminals D 1   b , D 2   b  of the third winding SL 2   b  are respectively configured in one of the pins  219  of the second pin holder  218 , so that the outlet terminals D 1   b , D 2   b  of the third winding ML 2   b  and the outlet terminals C 1 , C 2  of the first winding ML 2  are positioned at a different side. The outer diameter of the primary winding section ZN 1  and the outer diameter of the secondary winding sections ZN 2  and ZN 3  are equivalent. More specifically, the two outlet terminals C 1  and C 2  of the first winding ML 2  are coupled to two pins  217  of the first pin holder  216  disposed outside the first area AR 1 . Two outlet terminals D 1   a  and D 2   a  of the second winding SL 2   a  are coupled to two pins  217  of the first pin holder  216  disposed inside the first area AR 1 . Two outlet terminals D 1   b  and D 2   b  of the second winding SL 2   b  are coupled to two pins  219  of the second pin holder  218  disposed inside the second area AR 2 . 
     In another disclosure, in the main body  212  of the bobbin  210 , the third winding SL 2   b  can be omitted, and the first winding ML 2  and the second winding SL 2   a  remain. As shown in  FIG. 2E , the outlet terminal C 2  of the first winding ML 2  and the outlet terminals D 1   a , D 2   a  of the second winding SL 2   a  are respectively configured in one of the pins  217  of the first pin holder  216 , so that the outlet terminal C 2  of the first winding ML 2  and the outlet terminals D 1   a , D 2   a  of the second winding SL 2   a  are positioned at a same side. Besides, the outlet terminal C 1  of the first winding ML 2  is configured in one of the pins  219  of the second pin holder  218 , so that the outlet terminal C 1  of the first winding ML 2 , the outlet terminal C 2  of the first winding ML 2 , and the outlet terminals D 1   a , D 2   a  of the second winding SL 2   a  are positioned at a different side. The outer diameter of the primary winding section ZN 1  and the outer diameter of the secondary winding section ZN 2  are equivalent. More specifically, one of the two outlet terminals C 2  of the first winding ML 2  is coupled to one pin  217  of the first pin holder  216  disposed outside the first area AR 1 , and the other of the two outlet terminals C 1  of the first winding ML 2  is coupled to one pin  219  of the second pin holder  218  disposed outside the second area AR 2 . Two outlet terminals D 1   a  and D 2   a  of the second winding SL 2   a  are coupled to two pins  217  of the first pin holder  216  disposed inside the first area. AR 1 . 
     Certainly, two outlet terminals C 1 , C 2  of the first winding ML 2  can be configured in one of the pins of the pin holder configuring two outlet terminals D 1   a  and D 2   a  of the second winding SL 2   a . As shown in  FIG. 2F , the outlet terminal C 1  of the first winding ML 2  is configured in one of the pins  217  of the first pin holder  216 , so that the outlet terminals C 1 , C 2  of the first winding ML 2  and the outlet terminals D 1   a , D 2   a  of the second winding SL 2   a  are positioned at a same side. The pins  219  of the second pin holder  218  are not wound around the outlet terminals of the first winding and the second winding. The outer diameter of the primary winding section ZN 1  and the outer diameter of the secondary winding section ZN 2  are equivalent. More specifically, the two outlet terminals C 1  and C 2  of the first winding ML 2  is coupled to two pins  217  of the first pin holder  216  disposed outside the first area AR 1 . Two outlet terminals D 1   a  and D 2   a  of the second winding SL 2   a  are coupled to two pins  217  of the first pin holder  216  disposed inside the first area AR 1 . 
     The order of the winding sections configured in the main body  212  can be changed. For example, the primary winding section ZN 1 , the secondary winding section ZN 2 , and the secondary winding section ZN 3  are arranged in series starting from the first pin holder  216  to the second pin holder  218 , i.e., the primary winding section ZN 1  is arranged at a side of the secondary winding section ZN 2 , and the secondary winding section ZN 3  is arranged at another side of the secondary winding section ZN 2 . The present disclosure is not limited thereto. Besides, the winding section of the third winding SL 2   b  can be changed to a primary winding section (not shown in FIGs), so that the main body  212  of the bobbin  210  has two primary winding sections and one secondary winding section. Similarly, the number of the primary winding section and the secondary winding section can be changed. The present disclosure is not limited thereto. 
     In the following disclosure, a primary winding is taken as an example of the first winding and a secondary winding is taken as an example of the second winding and the third winding. When the electrical equipment wants to output at higher power, the secondary winding section can be laterally added in the main body  212 , and the second winding is wound around the added secondary winding section, i.e., the secondary winding is laterally added, to increase Electro-Magnetic Energy Conversion and to achieve the needed current density outputted from the outlet terminal of the electronic device. 
     As shown in  FIGS. 2A, 2C-2F , the main body  212  further has at least one partition plate BD 3  configured in the common border between any adjacent winding sections, to separate the primary winding and the secondary winding and to meet safety requirements. As shown in  FIG. 2C , the common border among the primary winding section ZN 1  and the secondary winding sections ZN 2 , ZN 3  of the main body  212  configures a partition plate BD 3 , to separate the first winding ML 2  (the primary side), the second winding SL 2   a  (the secondary side), and the third winding SL 2   b  (the secondary side). 
     Next, please refer to  FIG. 2G , which shows a bottom-side view of a bobbin according to another exemplary embodiment of the present disclosure. In the bobbin  210   a  shown in  FIG. 2G , the partition plate BD 4  of the main body  211 A is different from the partition plate BD 3  shown in  FIGS. 2A, 2C-2F . The difference is that the partition plate BD 4  has a first sub-partition plate SBD 3  and a second sub-partition plate SBD 4 . The height of the first sub-partition plate SBD 3  is higher than the height of the second sub-partition plate SBD 4  and the first sub-partition plate SBD 3  and the second sub-partition plate SBD 4  are configured to each other, to form a ladder structure. This means that there is a drop height between the first sub-partition plate SBD 3  and the second sub-partition plate SBD 4 . With respect to structures and connection relationships of the first pin holder  216   a , the second pin holder  218   a , the pins  217   a  and  219   a , the first winding ML 2 , the second winding SL 2   a , and the third winding SL 2   b  are the same as that of the first pin holder  216 , the second pin holder  218 , the pins  217  and  219 , the first winding ML 2 , the second winding SL 2   a , and the third winding SL 2   b  shown in  FIG. 2C , so detailed description is omitted. 
     Therefore, there is a ladder structure formed between the first sub-partition plate SBD 3  and the second sub-partition plate SBD 4 , so that the Creepage Distance between the first winding ML 2 , the second winding SL 2   a , and the third winding SL 2   b  (i.e., the primary side and the secondary side) is increased. Accordingly, the bobbin  210   a  meets the higher safety requirement using the same thickness of the partition plate BD 4 . Besides, when the electrical equipment wants to output the higher power in the same layout area, it needs to decrease the power loss. At present, when electrical equipment has to operate in high altitude above 5,000 meters and simultaneously meet safety requirements, the distance between the partition plates needs to be increased, to achieve the official regulatory distance that must be kept between the primary and the secondary side. The aforementioned method may raise leakage inductance and then increase the power loss of the transformers, to increase the needed layout area. Therefore, under the ladder structure between the first sub-partition plate SBD 3  and the second sub-partition plate SBD 4 , when the thickness of the partition plate BD 2  of the bobbin  210   a  is decreased, the bobbin  210   a  can still meet the higher safety requirement for high-power electrical equipment configured in the high altitude above 5,000 meters. 
     In summary, the invention is to provide a magnetic component, which configures positions of the outlet terminals of the primary winding and the secondary winding, so that at least one outlet terminal of the primary winding and at least one outlet terminal of the secondary winding are positioned at a same side. Accordingly, the magnetic component can decrease the volume of the whole magnetic component without influencing conversion efficiency. Besides, when the electronic device with the magnetic component wants to output the higher power, the secondary winding can be laterally added in the magnetic component, to increase Electro-Magnetic Energy Conversion, so that the magnetic component does not suffer from the limitation of product process and height, and the output terminal of the electrical equipment can output the needed current density. 
     The above-mentioned descriptions represent merely the exemplary embodiment of the present disclosure, without any intention to limit the scope of the present disclosure thereto. Various equivalent changes, alterations or modifications based on the claims of present disclosure are all consequently viewed as being embraced by the scope of the present disclosure.