Patent Publication Number: US-2021195010-A1

Title: Mobile Terminal, Electronic Device, and Host Assembly

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     This application is a continuation of International Application No. PCT/CN2019/089418, filed on May 31, 2019, which claims priorities to Chinese Patent Application No. 201821463195.3, filed on Sep. 6, 2018, the contents of both of which are herein incorporated by reference in their entireties. 
    
    
     TECHNICAL FIELD 
     The described embodiments relate to mechanical structure communication technology, and in particular to a mobile terminal, an electronic device, and a host assembly. 
     BACKGROUND 
     At present, smart phones are increasingly entering people&#39;s daily lives. Users can communicate, surf the Internet, take pictures and watch videos through smart phones. While watching videos, most of the users fix their smartphones by holding the smartphones in their hands. Thus, the hands of the users are not able to be freed and the user experience is poor. 
     SUMMARY 
     The present disclosure provides a mobile terminal, an electronic device, and a host assembly. 
     The embodiments of the present disclosure adopt the following technical solutions. 
     The present disclosure may provide a mobile terminal. The mobile terminal may include a host assembly and a display assembly. The host assembly may include a base and a support. The base may include a first surface. The first surface may define a receiving groove. The support can be rotatably connected to the base. The support can be capable of being located in the receiving groove and unfolded relative to the base. The support may include an inner face. The inner face may face the first surface. The display assembly can be detachably connected to the host assembly. The display assembly may include a display face, a back face and a peripheral side face. The back face may be arranged opposite to the display face. The peripheral side face can be connected between the display face and the back face. When the support is unfolded with a first angle relative to the first surface of the base, the display face or the back face of the display assembly may be attached to the inner face, the peripheral side face of the display assembly may abut against the base at a bottom of the receiving groove. 
     The present disclosure may provide an electronic device. The electronic device may include an operating mechanism and a display mechanism. The operating mechanism may include a supporting mount and a supporting plate. The supporting plate can be rotatably connected to the supporting mount. When the supporting plate is unfolded with a predetermined angle relative to the supporting mount, the supporting plate can be fixed relative to the supporting mount and cooperatively define a supporting space with the supporting mount. The display mechanism can be capable of communicating with the supporting mechanism. When the display mechanism is disposed in the supporting space, the display mechanism may be cooperatively supported by the supporting plate and the supporting mount. 
     The present disclosure may provide a host assembly for a mobile terminal. The mobile terminal may include an external device. The external device may be detachably connected to the host assembly. The external device may include a first supported face and a second supported face. The second supported face may be connected to the first supported face. The host assembly may include a seat and a support. The seat may include a bearing face. The bearing face may define a receiving slot. The support may be rotatably connected to the seat. The support may be capable of being located in the receiving slot and unfolded relative to the seat. The support may include an inner face facing the bearing face. When the support is unfolded with a predetermined angle relative to the bearing face, the first supported face of the external device may be attached to the inner face, and the second supported face of the external device may abut against the seat at a bottom of the receiving slot. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       In order to make the technical solution described in the embodiments of the present disclosure more clear, the drawings used for the description of the embodiments will be briefly described. Apparently, the drawings described below are only for illustration but not for limitation. It should be understood that, one skilled in the art might acquire other drawings based on these drawings, without paying any creative efforts. 
         FIG. 1  is a structural view of a mobile terminal according to an embodiment of the present disclosure under a use state. 
         FIG. 2  is a structural view of the mobile terminal in  FIG. 1  under another use state. 
         FIG. 3  is a structural view of the mobile terminal in  FIG. 1  under another use state. 
         FIG. 4  is a structural view of the mobile terminal in  FIG. 3  under another use state from another perspective. 
         FIG. 5  is a structural view of a host assembly of the mobile terminal in  FIG. 1 . 
         FIG. 6  is a structural view of the host assembly of the mobile terminal in  FIG. 1  from another perspective. 
         FIG. 7  is a structural view of the host assembly in  FIG. 5  with a display assembly received. 
         FIG. 8  is a structural view of a receiving groove of the host assembly in  FIG. 5  according to another embodiment. 
         FIG. 9  is a structural view of the host assembly in  FIG. 5  in a folded state. 
         FIG. 10  is a structural view of a support and a base of the host assembly according to another embodiment with a position relationship. 
         FIG. 11  is a structural view of the support and the base of the host assembly according to another embodiment with another position relationship. 
         FIG. 12  is a structural view of the host assembly in  FIG. 5  from another perspective. 
         FIG. 13  is a structural view of a fixing member in  FIG. 12 . 
         FIG. 14  is a structural view of the fixing member according to another embodiment. 
         FIG. 15  is a structural view of a fixing rod of the fixing member in  FIG. 12 . 
         FIG. 16  is a partial view of the XV in  FIG. 15 . 
         FIG. 17  is a partial view of the XVI in  FIG. 5 . 
         FIG. 18  is a partial view of the XVII in  FIG. 9 . 
         FIG. 19  is a structural view of the host assembly and the display assembly in a divided form. 
     
    
    
     DETAILED DESCRIPTION 
     Technical solutions of the embodiments of the present disclosure may be clearly and comprehensively described by referring to accompanying figures of the embodiments. Obviously, embodiments to be described are only a part of, but not all of, the embodiments of the present disclosure. Any ordinary skilled person in the art may obtain other embodiments based on the embodiments of the present disclosure without any creative work, and the other embodiments should be included in the scope of the present disclosure. 
     A mobile terminal according to an embodiment of the present disclosure may include a host assembly and a display assembly. The host assembly may include a base and a support. The base may include a first surface. The first surface may define a receiving groove. The support can be rotatably connected to the base. The support can be capable of being located in the receiving groove and unfolded relative to the base. The support may include an inner face. The inner face may face the first surface. The display assembly can be detachably connected to the host assembly. The display assembly may include a display face, a back face and a peripheral side face. The back face may be arranged opposite to the display face. The peripheral side face can be connected between the display face and the back face. When the support is unfolded with a first angle relative to the first surface of the base, the display face or the back face of the display assembly may be attached to the inner face, the peripheral side face of the display assembly may abut against the base at a bottom of the receiving groove. 
     In another embodiment, the support may include a first outer face. The first outer face may be arranged opposite to the inner face. When the support is located in the receiving groove, the first outer face may be substantially flush with the first surface. 
     In another embodiment, the base may include a first side face, a second side face and a third side face. The first side face may be adjacent and connected to the first surface. The second side face may be adjacent and connected to the first surface. The second side face may be arranged opposite to the first side face. The third side face may be adjacent and connected to the first surface. The third side face may be connected between the first side face and the second side face. The third side face may be parallel to a rotation center axis of the support. 
     In further another embodiment, the base may include a fourth side face. The fourth side face may be opposite to the third side face. The fourth side face may be connected between the first side face and the second side face. The receiving groove may include a first end and a second end opposite to the first end. The first end of the receiving groove may penetrate through the third side face. The second end of the receiving groove may penetrate through the fourth side face. 
     In still further another embodiment, the receiving groove may include a first end and a second end. The second end may be opposite to the first end. The first end of the receiving groove may penetrate through the first side face. The second end of the receiving groove may penetrate through the second side face. 
     In another embodiment, the base may include a fixing member. The fixing member may be disposed at the bottom of the receiving groove. Two pivoting parts may be arranged on the fixing member. Each of two ends of the fixing member may be provided with a corresponding one of the two pivoting parts. Each of two ends of the support may be rotatably connected to the corresponding one of the two pivoting parts. 
     In another embodiment, when the support is unfolded relative to the base, the display face or the back face of the display assembly may be attached to the inner face, and the peripheral side face of the display assembly may abut against the fixing member. 
     In another embodiment, the fixing member may include a second outer face away from the bottom of the receiving groove. When the support is located in the receiving groove, the first outer face of the support may be substantially flush with the second outer face of the fixing member. 
     In further another embodiment, the fixing member may include a fixing seat and a fixing rod. The fixing seat may be disposed at the bottom of the receiving groove. The fixing seat may define a fixing hole. The fixing rod may be stationary relative to the fixing seat and partially located in the fixing hole. Two ends of the fixing rod may extend out of the fixing hole and operate as the two pivoting parts. 
     In further another embodiment, the fixing rod may include a first rod, a second rod, and an elastic member. The elastic member may be elastically disposed between the first rod and the second rod. Part of the first rod, part of the second rod and the elastic member may be located in the fixing hole. An end of the first rod and an end of the second rod may extend out of the fixing hole and operate as the two pivoting parts. 
     In further another embodiment, an outer peripheral face of a part of the fixing rod located in the fixing hole may include at least one plane. 
     In still further another embodiment, the support may include a supporting plate. An end of the supporting plate may define a recess. Each of two side walls of the fixing plate arranged at two opposite sides of the recess may define a pivoting hole. Each of two pivoting parts may be interposed in a corresponding pivoting hole. Each of two pivoting parts may be rotatably connected to the supporting plate at the corresponding pivoting hole. The host assembly may further include two limiting members. Each of the two limiting members may be disposed between a corresponding pivoting part and an inner wall of the supporting plate around a corresponding pivoting hole. The supporting plate may be unfolded and fixed relative to the base. 
     In another embodiment, the limiting member may include two limiting protrusions. Each of the two limiting protrusions may be disposed on a corresponding pivoting part. Each of two inner walls of the supporting plate around a corresponding pivoting hole may define a limiting groove. When each of the limiting protrusions on a corresponding pivoting part is located in a corresponding limiting groove of the supporting plate, the support may be unfolded and fixed relative to the base. 
     In another embodiment, the host assembly may include a keyboard. The keyboard may be disposed on the first surface and adjacent to the receiving groove. 
     In another embodiment, the base may define at least one accommodating groove at the bottom of the receiving groove. The accommodating groove may be configured to accommodate an external device when the support is unfolded relative to the base. 
     In further another embodiment, the mobile terminal may further include a first magnetic element and a second magnetic element. The first magnetic element may be disposed on the support. The second magnetic element may be located on the display assembly. The second magnetic may be magnetically attracted to the first magnetic element. When the display assembly is carried on the support, the display assembly may be stably arranged relative to the support under a magnetic force of the second magnetic element and the first magnetic element. 
     In still further another embodiment, the mobile terminal may further include a first electric connection part and a second electric connection part. The first electric connection part may be arranged on the inner face. A second electric connection part may be disposed on the display assembly. When the display face or the back face of the display assembly is attached to the inner face, the first electric connection part may be contacted and electrically connected with the second electric connection part, and a transmission mode between the display assembly and the host assembly may be a wired data transmission. 
     In still further another embodiment, the host assembly may include an external communication module and a first internal wireless communication module. The external communication module may be configured to communicate with an external device. A first internal wireless communication module may be configured to communicate with the external communication module. The display assembly may include a second internal wireless communication module. When the second electric connection part is disconnected from the first electric connection part, the second internal wireless communication module may communicate with the first internal wireless communication module, and the transmission mode between the display assembly and the host assembly may be a wireless data transmission. 
     In still further another embodiment, the host assembly may include a detection element and a changeover switch. In response to the detection element detecting that the second electric connection part is electrically connected to the first electric connection part, the changeover switch may change the transmission mode from the wireless data transmission to the wired data transmission. 
     In still further another embodiment, the mobile terminal may further include a button. The button may be disposed on the first surface. The button may be configured to establish or discontinue a data transmission between the host assembly and the display assembly. 
     An electronic device according to an embodiment of the present disclosure may include an operating mechanism and a display mechanism. The operating mechanism may include a supporting mount and a supporting plate. The supporting plate may be rotatably connected to the supporting mount. When the supporting plate is unfolded with a predetermined angle relative to the supporting mount, the supporting plate may be fixed relative to the supporting mount and cooperatively define a supporting space with the supporting mount. The display mechanism can be capable of communicating with the supporting mechanism. When the display mechanism is disposed in the supporting space, the display mechanism may be cooperatively supported by the supporting plate and the supporting mount. 
     A host assembly according to an embodiment of the present disclosure may be configured for a mobile terminal. The mobile terminal may include an external device. The external device may be detachably connected to the host assembly. The external device may include a first supported face and a second supported face. The second supported face may be connected to the first supported face. The host assembly may include a seat and a support. The seat may include a bearing face. The bearing face may define a receiving slot. The support may be rotatably connected to the seat. The support may be capable of being located in the receiving slot and unfolded relative to the seat. The support may include an inner face facing the bearing face. When the support is unfolded with a predetermined angle relative to the bearing face, the first supported face of the external device may be attached to the inner face, and the second supported face of the external device may abut against the seat at a bottom of the receiving slot. 
     Embodiments of the present disclosure provide a mobile terminal. The mobile terminal can be any device with a communication function and storage function, such as a tablet computer, a mobile phone, an e-reader, a notebook computer, a vehicle-mounted device, a wearable device, or the like. 
     As shown in  FIGS. 1-2 , the mobile terminal  100  may include a host assembly  1  and a display assembly  2  detachably connected to the host assembly  1 . It can be understood that, the host assembly  1  may include an external communication module  11 , a first internal wireless communication module  12 , and a charging component  13 . The external communication module  11  may be configured to communicate with external devices such as servers, base stations, or the like. The first internal wireless communication module  12  may communicate with the external communication module  11 . The display assembly  2  may include a second internal wireless communication module  21 , a battery  25 , and a camera assembly  22 . The external communication module  11  may include, but be not limited to, an antenna component and a Wireless-Fidelity (Wi-Fi) component. The host assembly  1  can perform functions such as calling and surfing the Internet through the external communication module  11 . The first internal wireless communication module  12  of the host assembly  1  may be capable of communicating with the second internal wireless communication module  21  of the display assembly  2  to realize a data transmission between the host assembly  1  and the display assembly  2 . The first internal wireless communication module  12  can include, but be not limited to, Bluetooth, Wi-Fi and Near Field Communication (NFC). The second internal wireless communication module  21  may correspond to or be in accordance with the first internal wireless communication module  12 . Since the host assembly  1  includes the first internal wireless communication module  12 , and the display assembly  2  includes the second internal wireless communication module  21 , no matter whether the host assembly  1  and the display assembly  2  are in a combined/assembled state or a separated state, a wireless data transmission can be performed between the host assembly  1  and the display assembly  2  according to user&#39;s choice. 
     The charging component  13  of the host assembly  1  can be configured to charge the battery  25  to supply power to the display assembly  2 . Thus, when the display assembly  2  needs a power supply, the display assembly  2  can be charged by the host assembly  1  via a wired charging or a wireless charging. 
     With reference of  FIGS. 3 and 4  together, the camera assembly  22  of the display assembly  2  may include a first camera  221  and a second camera  222 . A light-receiving direction of the first camera  221  and a light-receiving direction of the second camera  222  may be opposite to each other. The display assembly  2  may have a display face  23  and a back face  24  arranged opposite to each other. The display face  23  can be configured to display images. A light-transmitting hole  231  for the first camera  221  can be defined in the display face  23 . The first camera  221  can receive light through the light-transmitting hole  231  to realize a photographing function. The first camera  221  can be a front camera. The second camera  222  may be arranged in the back face  24  to realize a photographing function. That is to say, the second camera  222  can be a rear camera. 
     The host assembly  1  and the display assembly  2  can be used in combination or separately. 
     As illustrated in  FIG. 1 , the display assembly  2  can be stacked on the host assembly  1 . In this way, the mobile terminal  100  can be in a stacked and combined/assembled use state. In this state, the mobile terminal  100  can realize functions such as charging and data transmission. For example, the charging assembly  13  can charge the battery  25  of the display assembly  2 , and the first internal wireless communication module  12  can communicate with the second internal wireless communication module  21 . A display screen of the display assembly  2  can be placed back to or face away from the host assembly  1 . In this way, it is convenient for users to watch the display surface  23 . The display screen of the display assembly  2  can also be placed toward or adjacent to the host assembly  1  to protect the display screen. 
     As shown in  FIG. 2 , the display assembly  2  and the host assembly  1  can be used separately. In other words, the display assembly  2  can be used separately from the host assembly  1  and used alone. The display assembly  2  can perform the display function through the display screen. The display screen may cover as fully as possible one side of the display assembly  2 , i.e., the display face  23 , or both sides of the display assembly  2 , so that the display assembly  2  can realize a full-screen display. Signals can be transmitted between the second internal wireless communication module  21  and the first internal wireless communication module  12  in a wireless transmission manner. For example, the second internal wireless communication module  21  and the first internal wireless communication module  12  can communicate with each other via Bluetooth, in this way, the display assembly  2  can be in communication connection with the host assembly  1  at a certain distance. For example, when the display assembly  2  is separated from the host assembly  1 , a call can be made through the display assembly  2 . 
     As illustrated in  FIG. 3 , the display assembly  2  can be placed on the host assembly  1  in a side-standing manner, and the mobile terminal  100  can be in a side-standing and combined/assembled use state. When the mobile terminal  100  is in the side-standing combined/assembled use state, the charging assembly  13  can charge the battery  25  of the display assembly  2 , and a data transmission can be performed between the host assembly  1  and the display assembly  2 . When the display assembly  2  is placed on the host assembly  1  in a side-standing manner, the display assembly  2  may have an upright angle relative to the host assembly  1 . In this way, the inconvenience in use that the user needs to hold the display assembly  2  by hands or the display assembly  2  needs to be supported by an external tool while watching videos can be solved, thus the user can watch videos more comfortably. 
     As shown in  FIGS. 5 to 7 , the host assembly  1  may include a base  14  and a support  15 . A receiving groove  142  may be defined in a first surface  141  of the base  14 . The support  15  may be rotatably connected to the base  14 . The support  15  can be received in the receiving groove  142  and unfolded relative to the base  14 . The support  15  may have an inner face  1515  facing the first surface  141 . The display assembly  2  may further include a peripheral side face  26  connected between the display face  23  and the back face  24 . When the support  15  is unfolded with a first angle A relative to the first surface  141  of the base  14 , the display face  23  or the back face  24  of the display assembly  2  can be attached to the inner face  1515 , and the peripheral side face  26  of the display assembly  2  can abut against the base  14  at a bottom of the receiving groove  142 . On one hand, as shown in  FIG. 5 , the base  14  and the support  15  can be combined together so that the mobile terminal  100  can be in the side-standing and combined/assembled use state. On the other hand, as shown in  FIG. 7 , the base  14  and the support  15  can be combined or assembled with each other to form a space for accommodating the display assembly  2 . In other words, when the display assembly  2  needs to be received, the display assembly  2  can be stacked on the base  14 , and then the support  15  can be folded relative to the base  14  until the base  14  abuts against the support  15  such that the mobile terminal  100  is in a receiving and combined/assembled state, thereby providing a protection for the display assembly  2 . When the mobile terminal  100  is in the receiving and combined/assembled state, charging and data transmission can also be performed between the host assembly  1  and the display assembly  2 . 
     The host assembly  1  may be in a roughly rectangular shape. The base  14  may be a main body of the host assembly  1 . That is, all of the external communication module  11 , the first internal wireless communication module  12 , and the charging assembly  13  of the host assembly  1  can be arranged on the base  14 . It should be noted that the arrangement here can be understood as the aforementioned components can be fixed in the base  14  or partly housed in the base  14  and partly exposed from the base  14  according to corresponding functional requirements. The first surface  141  of the base  14  may also be approximately long rectangle shaped, and include a pair of long side edges  143  disposed oppositely and a pair of short side edges  144  connected between the pair of long side edges  143 . Herein, a length of each long side edge  143  is greater than a length of each short side edge  144 . For the convenience of description, a length extension direction of each of the pair of long side edge  143  is defined as an X direction, and a length extension direction of the pair of short side edges  144  is defined as a Y direction. 
     The base  14  may include a first side face  147 , a second side face  148 , and a third side face  149 . All of the first side face  147 , the second side face  148 , and the third side face  149  can be adjacent and connected to the first surface  141 . The first side face  147  and the second side face  148  may be arranged opposite to each other. The third side face  149  can be connected between the first side face  147  and the second side face  148 . One of the pair of short side edges  144  may be a side edge of the first surface  141  which is adjacently connected to the first side face  147 , and the other of the pair of short side edges  144  may be a side edge of the first surface  141  which is adjacently connected to the second side face  148 , and the pair of long side edges  143  can be side edges of the first surface  141  which are adjacently connected to the third side face  149 . 
     Two opposite ends of the receiving groove  142  may respectively penetrate through the first side face  147  and the second side face  148 . In detail, the receiving groove  142  may have a first end  1421  and a second end  1422  disposed opposite to each other, and a third end  1423  and a fourth end  1424  both connected between the first end  1421  and the second end  1422 . The third end  1423  and the fourth end  1424  may be arranged opposite to each other. The first end  1421  of the receiving groove  142  can penetrate through the first side face  147 , and the second end  1422  of the receiving groove  142  can penetrate through the second side face  148 . The third end  1423  can penetrate through the third side face  149 . The fourth end  1424  and the first surface  141  adjacent to the fourth end  1424  can corporately form a step. In other words, the fourth end  1424  can be a wall section protruding from the bottom of the receiving groove  142 . The receiving groove  142  may be located at an edge of the first surface  141  and can be substantially in a strip shape. The receiving groove  142  may roughly occupy ¼ of the Area of the First Surface  141 . In other embodiments, as shown in  FIG. 8 , the base  14  may include a fourth side face  150  opposite to the third side face  149 , the fourth side face  150  can be disposed between and connected to the first side face  147  and the second side face  148 . The first end  1421  and the second end  1422  opposite to each other of the receiving groove  142  may penetrate the third side face  149  and the fourth side face  150 . The third end  1423  and the fourth end  1424  of the receiving groove  142  may be respectively a wall section protruding from the bottom of the receiving groove  142 . In other words, the receiving groove  142  can be located at the middle area of the first surface  141 . 
     As shown in  FIG. 5 , each of the short side edges  144  can be cut off at a corresponding end of the receiving groove  142  short side edge. A length of the receiving groove  142  may be substantially the same as a length of each of the long side edges  143  of the first surface  141 . The structure of the receiving groove  142  may enable the receiving groove  142  to hold a long enough support  15 . In addition, since each of two ends of the receiving groove  142  with a shorter length than other ends of the receiving groove  142  can be arranged corresponding to the short side edges  144  of the first surface  141 , an area of the first surface  141  occupied by the receiving groove  142  can be small, thus the first surface  141  can have enough space for arranging other components. For example, the host assembly  1  can further include a keyboard  16 . The keyboard  16  can be disposed on the first surface  141  and adjacent to the receiving groove  142 . In detail, the keyboard  16  may be an inductive keyboard  16  with a small thickness. The keyboard  16  can provide a more convenient input mode for the display assembly  2 . A data transmission can be performed between the keyboard  16  and the display assembly  2  through a wireless connection. In other embodiments, other components or structures may be arranged on an area of the first surface  141  except the area occupied by the receiving groove  142 . For example, the first surface  141  may also be provided with a display panel for display. 
     The third side face  149  may be substantially parallel to a rotation central axis Z 1  of the support  15 . That is to say, a direction of the rotation center axis Z 1  of the support  15  may be substantially the same as an extending direction of each of the pair of long side edges  143 . Herein, the support  15  may rotate about the rotation center axis Z 1  with respect to the base  14 . Since the long side edge  143  of the base  14  is long enough, a length of a position at which the support  15  contacts with the base  14  can be substantially equal to the long side edge  143 , the support  15  can have a long enough area which can be connected with the base  14 . In other embodiments, the direction of the rotation center axis Z 1  of the support  15  may also be the same as an extension direction of the short side edge  144 . 
     As shown in  FIG. 9 , when the support  15  is received in the receiving groove  142 , a first outer face  1516  of the support  15  away from the bottom of the receiving groove  142  can be substantially flush with the first surface  141 . In this way, when the host assembly  1  is in a folded state, the support  15  can be completely accommodated in the base  14 , so that each outer face of the host assembly  1  may have a flat outline. In this way, when the display assembly  2  is stacked on the host assembly  1 , the display assembly  2  can be placed more stably, thereby reducing the occurrence of unstable drops due to local bumps, and further improving the reliability of the mobile terminal  100 . In other embodiments, as shown in  FIG. 10 , when the host assembly  1  is in the folded state, the support  15  may also protrude out of the base  14 ; that is, the first outer face  1516  of the support  15  away from the bottom of the receiving groove  142  may be located at a level higher than the first surface  141 . Or as shown in  FIG. 11 , the first surface  141  may also protrude from the face of the support  15  away from the first surface  141 ; that is, the first outer face  1516  of the support  15  away from the bottom of the receiving groove  142  may be located at a level lower than the first surface  141 . 
     In the present disclosure, a structure of the rotational connection between the support  15  and the base  14  can be specifically as follows. 
     As shown in  FIG. 12 , the base  14  may further include a fixing member  17 . The fixing member  17  may be disposed at the bottom of the receiving groove  142 . Each end of the fixing member  17  may be provided with a pivoting part  171 . Each end of the support  15  can be rotatably connected to a corresponding pivoting part  171 . In other words, the base  14  may be provided with the fixing member  17  that can be rotatably connected to the support  15  so that the support  15  can rotate relative to the base  14 . 
     More specifically, the fixing member  17  can be located at an edge of the receiving groove  142  to reduce the space of the receiving groove  142  occupied by the fixing member  17  to receive the support  15 . The pivoting parts  171  on both sides of the fixing member  17  may extend along the X direction. In this way, when the support  15  is rotatably connected to the pivoting parts  171  on both sides of the fixing member  17 , the rotation central axis Z 1  of the support  15  can extend along the X direction. 
     In the present disclosure, as further shown in  FIG. 13 , the structure of the fixing member  17  is specifically described as follows. The fixing member  17  may include a fixing seat  172  and a fixing rod  173  that may be stationary relative to the fixing seat  172 . The fixing seat  172  can be disposed at the bottom of the receiving groove  142  and may define a fixing hole  1723 . A part of the fixing rod  173  can be located in the fixing hole  1723 , and two ends of the fixing rod  173  may respectively extend out of the fixing hole  1723  to form the two pivoting parts  171 . The fixing seat  172  may be substantially elongated, and can extend along the X direction. The fixing seat  172  can be located at the middle of the edge of the receiving groove  142 . The fixing seat  172  and the base  14  can be integrally formed. The fixing base  172  may have a first fixing end  1721  and a second fixing end  1722  disposed opposite to each other, and a second outer face  1724  connected between the first fixing end  1721  and the second fixing end  1722 . The fixing hole  1723  of the fixing seat  172  may penetrate through the first fixing end  1721  and the second fixing end  1722 , so that when the fixing rod  173  is received in the fixing seat  172 , it can partially extend out of the fixing seat  172  to form the pivoting parts  171  to be rotatably connected with the support  15 . The fixing rod  173  of the fixing member  17  with this structure can be detached from the fixing seat  172 . When the fixing rod  173  is damaged, it can be replaced by a new fixing rod  173  to regain the rotating connection between the fixing member  17  and the support  15 . In other embodiments, as shown in  FIG. 14 , the fixing member  17  may also be a bracket  174  detachably connected to a position of the base  14  at the bottom of the receiving groove  142 . The bracket  174  may be fixed to the position of the base  14  at the bottom of the receiving groove  142  by means of a screw or a snap. The bracket  174  may be substantially a rectangular block and extend along the X direction. Each end of the bracket  174  along the X direction can be integrally formed with a pivoting part  171  for rotatably connecting with the support  15 . Using the fixing member  17  of this structure can reduce the assembly process. 
     As illustrated in  FIGS. 15 and 16 , the fixing rod  173  may include a first rod  1731 , a second rod  1732 , and an elastic member  1733  elastically arranged between the first rod  1731  and the second rod  1732 . Part of the first rod  1731 , part of the second rod  1732 , and the elastic member  1733  may be located in the fixing hole  1723 . An end of the first rod  1731  and an end of the second rod  1732  can respectively extend out of the fixing hole  1723  and can operate as two pivoting parts  171 . Specifically, the first rod  1731  and the second rod  1732  may have the same structure, and outer peripheral surfaces of the first rod  1731  and the second rod  1732  can include at least one plane. The outer peripheral surfaces of the first rod  1731  and the second rod  1732  without being rotatably connected with the support  15  may be all square faces. The outer peripheral surfaces rotatably connected with the support  15  are straight cylindrical faces conducive to rotation of the support  15  relative to the fixing seat  172 . Correspondingly, the fixing hole  1723  of the fixing seat  172  may also be square. Because of the square configuration, when the first rod  1731  and the second rod  1732  are located in the fixing seat  172 , the first rod  1731  and the second rod  1732  may not rotate relative to the fixing seat  172 . Thus, when the support  15  is rotatably connected to the ends of the first rod  1731  and the second rod  1732 , the first rod  1731  and the second rod  1732  may be preferably fixed in the fixing seat  172  without sliding relative the fixing seat  172 , thereby affecting the sliding of the support  15  relative to the fixed rod  173 . In addition, the fixing rod  173  can be composed of two separated rods and an elastic member  1733  arranged between the two separated rods. When the support  15  needs to be fastened to the ends of the first rod  1731  and the second rod  1732 , due to the existence of the elastic member  1733 , the first rod  1731  and the second rod  1732  can approach each other, thereby reducing the length of the fixing rod  173  in the X direction, which can facilitate the buckle connection between the support  15  and the fixing rod  173 . After the support  15  and the fixing rod  173  are buckled together, the elastic member  1733  can provide an elastic force to the first rod  1731  and the second rod  1732  so as to establish a good buckle connection between the support  15  and the fixing rod  173 . The elastic member  1733  may be a spring. Correspondingly, ends of the first rod  1731  and the second rod  1732  can extend into two ends of the spring, or can abut against and be bonded to the two ends of the spring. In other embodiments, the fixing rod  173  can also be a whole rod. Two ends of the rod may respectively extend out of the fixing hole  1723  and be located outside the fixing seat  172 . The fixing rod  173  may be integrally formed of metal material and plastic material. In the process of buckling with the support  15 , due to the presence of plastic material, the fixing rod  173  can be elastically deformed to be buckled with the support  15 . 
     When the support  15  is unfolded relative to the base  14 , the display face  23  or the back face  24  of the display assembly  2  can be attached to the support  15 , and the peripheral side face  26  of the display assembly  2  can abut against the second outer face  1724  of the fixing base  172 . 
     As shown in  FIGS. 5, 13, 17 and 18  together, the support  15  can be rotatably connected to the fixing member  17 . The support  15  may be a supporting plate  151 . The host assembly  1  may further include two limiting members  152 . A recess  1511  may be defined at an end of the supporting plate  151 . Each of two side walls  1512  and  1513  of the fixing plate  151  arranged at two opposite sides of the recess  1511  may define a pivoting hole  1514 . Each of the two pivoting parts  171  may be interposed in a corresponding pivoting hole  1514  so as to be rotatably connected to the supporting plate  151  at the corresponding pivoting hole  1514 . Each of the two limiting members  152  can be disposed between a corresponding pivoting part  171  and an inner wall of the supporting plate  151  around a corresponding pivoting hole  1514 , so that when the supporting plate  151  is rotated relative to the base  14  until the angle therebetween is a first angle A, the supporting plate  151  can be relatively fixed relative to the base  14 . In other words, the supporting plate  151  can be unfolded relative to the base  14  and relatively fixed. The supporting plate  151  may be configured to be rotatably connected with the fixing member  17 , and the limiting member  152  can be arranged between the supporting plate  151  and the fixing member  17 , so that when the support  15  is unfolded, it may stably disposed and form a first angle A relative to the base  14 . 
     The first angle A can be the angle between the inner face  1515  of the supporting plate  151  and the first surface  141  of the base  14 . 
     Specifically, the supporting plate  151  may be a thin plate in a shape of elongated rectangular. A size of the supporting plate  151  may coincide with a size of the receiving groove  142 , such that when the host assembly  1  is in a folded state, the supporting plate  151  can be completely received in the receiving groove  142 . The supporting plate  151  can include the inner face  1515  and the first outer face  1516  oppositely arranged. The inner face  1515  may face toward the first surface  141 . In other words, when the host assembly  1  is in a folded state, the inner face  1515  can be attached on the support  15  at the bottom of the receiving groove  142 . The first outer face  1516  may be arranged substantially flush with the first surface  141  and the second surface  1724  of the fixing seat  172 , such that the surface of the whole device is continuous when the host assembly  1  is in a folded state. 
     The limiting member  152  may include two limiting protrusions  1521 . Each of the two limiting protrusions  1521  may be disposed on a corresponding pivoting part  171 . Each of two inner walls of the supporting plate  151  around a corresponding pivoting hole  1514  may define a limiting groove  1522 . When a limiting protrusion  1521  on a corresponding pivoting part  171  is disposed in a corresponding limiting groove  1522  defined in the supporting plate  151 , the support  15  can be unfolded with the first angle A relative to the base  14 . Each limiting protrusion  1521  may be an arc-shaped protrusion. Each limiting groove  1522  may be an arc-shaped groove corresponding to the limiting protrusion  1521 . When the supporting plate  151  rotates relative to the pivoting part  171  until the limiting protrusion  1521  is located in the limiting groove  1522 , since the supporting plate  151  is in a lock joint with or engaged with the pivoting part  171 , the supporting plate  151  can be stably disposed relative to the base  14 . In other embodiments, the limiting member  152  can also include a screw, and a limiting hole may penetrate through the supporting plate  151 . In this case, the limiting hole can be fluidly connected with the pivoting hole  1514 , the screw can be disposed in the limiting hole and abut against the pivoting part  171  in the pivoting hole  1514 , in this way, the supporting plate  151  can be arranged stably relative to the base  14 . 
     As illustrated in  FIG. 1 , when the mobile terminal  100  is in the stacked and combined/assembled use state, the supporting plate  151  can be received in the receiving groove  142 , and the display assembly  2  can be disposed on the base  14 . Since the supporting plate  151  is substantially flush with the first surface  141  of the base  14  and the surface of the fixing seat  172 , the display assembly  2  can be placed on the base  14  stably. 
     As shown in  FIGS. 2 and 17 , when the mobile terminal  100  is in the side-standing and combined/assembled use state, the supporting plate  151  can be steadily arranged with the first angle A relative to the base  14  under the limitation of the limiting protrusions  1521  and the limiting groove  1522 . The display assembly  2  can be carried on the inner face  1515  of the supporting plate  151  and abut against the surface of the fixing seat  172 . In this way, while being used, the display assembly  2  can be supported on the support  15 , thereby freeing user&#39;s hands. It can be understood that, a wireless coil  146  can be engaged in the fixing seat  172 . In this way, when the display assembly  2  abuts on the surface of the fixing seat  172 , the host assembly  1  can charge the display assembly  2  through the wireless coil  146 . 
     As shown in  FIG. 7 , when the display assembly  2  of the mobile terminal  100  needs to be accommodated, the display assembly  2  can be stacked on the base  14 , and the supporting plate  151  can be unfolded to abut against the display assembly  2 , such that the display assembly  2  can be further protected. 
     As shown in  FIG. 5 , a buckle portion  140  may be disposed on the first surface  141  near the receiving groove  142 . When the host assembly  1  is in a folded state, the supporting plate  151  can be unfolded relative to the base  14  by buckling the buckle portion  140 . In some embodiments, the buckle portion  140  may be a recess recessed from the first surface  141  in a direction away from the first surface  141 . 
     The mobile terminal  100  provided in the embodiments of the present disclosure may include two parts which are the host assembly  1  and display assembly  2 . The two parts can be used separately or in combination. While used in combination, since the support  15  of the host assembly  1  can be unfolded relative to the first surface  141  of the base  14  in the first angle A, the display assembly  2  can be supported on the support  15  while being used, thereby freeing user&#39;s hands. While being used separately, since the base  14  defines the receiving groove  142 , the support  15  can be folded relative to the base  14  to be received in the receiving groove  142  of the base  14 , thereby facilitating the accommodation of the host assembly  1 . 
     As further shown in  FIG. 17 , the base  14  may define an accommodating groove  145  at the bottom of the receiving groove  142  of the base  14 . When the support  15  is unfolded with the first angle A relative to the base  14 , the accommodating groove  145  can be configured to accommodate the external devices, and the support  15  can be used to support the external devices. Specifically, the accommodating groove  145  may extend along the X direction. The number of the accommodating groove  145  is two. The two accommodating grooves  145  can be disposed at two opposite sides of the fixing seat  172  respectively. The two accommodating grooves  145  can be used to accommodating the external devices such as smart phones. It can be understood that, the two accommodating grooves  145  can also be configured to accommodate the display assembly  2 . 
     It can be understood that, two strip-shaped protrusions  1517  can be arranged on and protrude from the supporting plate  151 . When the supporting plate  151  are received in the receiving groove  142 , each of the two strip-shaped protrusions  1517  can be can be accommodated in a corresponding accommodating groove  145 . The shape of the strip-shaped protrusion  1517  can be matched with the corresponding accommodating groove  145 , such that when the strip-shaped protrusion  1517  is positioned in the accommodating groove  145 , the accommodating groove  145  can be filled up with the corresponding strip-shaped protrusion  1517 . The strip-shaped protrusions  1517  with this configuration can reduce dust entry when the strip-shaped protrusions  1517  are accommodated in the accommodating grooves. In addition, the strip-shaped protrusion  1517  can be clamped with or engaged with the accommodating groove  145  to further improve the reliability of the host assembly  1 . In other embodiments, a gap may be defined between the strip-shaped protrusions  1517  and the accommodating grooves  145  while the strip-shaped protrusions  1517  are accommodated in the accommodating grooves  145 . 
     Moreover, as further shown in  FIG. 19 , the mobile terminal  100  may further include a first magnetic element  3  and a second magnetic element  4  magnetically attracted each other. The first magnetic element may be disposed on the support  15 . The second magnetic element  4  may be positioned on the display assembly  2 . When the back face  24  of the display assembly  2  is attached to the inner face  1515  of the support  15 , under the magnetic force of the second magnetic element  4  and the first magnetic element  3 , the display assembly  2  can be fixed relative to the support  15 . Specifically, the first magnetic element  3  may be disposed on the supporting plate  151 , and the second magnetic element  4  can be located on the back face  24  of the display assembly  2 . When the mobile terminal  100  is in the side-standing and combined/assembled use state, the display assembly  2  may be fixed to the supporting plate  151  more stably via the magnetic force between the first magnetic element  3  and the second magnetic element  4 . In this way, the probabilities in dropping of the display assembly  2  can be reduced, and the reliability of the mobile terminal  100  can be improved. In addition, since the first magnetic element  3  is disposed on the supporting plate  151 , when the mobile terminal  100  is in the stacked and combined/assembled use state, a magnetic force still exist between the supporting plate  151  and the display assembly  2  to attract each other. The first magnetic element  3  and the magnetic element  4  may be electromagnets, and the magnetic polarities of thereof can be changed by controlling electrical signals. Of course, in other embodiments, the first magnetic element  3  and the second magnetic element  4  can also be magnets. 
     Furthermore, as shown in  FIG. 19 , the mobile terminal can include a first electric connection part  5  arranged on the inner face  1515  and a second electric connection part  6  disposed on the display assembly  2 . When the display face  23  of the display assembly  2  is attached to the inner face  1515 , the second electric connection part  6  may contact and be electrically connected with the first electric connection part  5 . In this way, the wired data transmission between the display assembly  2  and the host assembly  1  can be realized. Understandably, when the second electric connection part  6  is in a point contact with the first electric connection part  5 , the host assembly  1  can supply power to the display assembly  2 . In detail, the first electric connection part  5  and the second electric connection part  6  can be electric pins. The first electric connection part  5  and the first magnetic element  3  can be located in a same area. In this way, when the display assembly  2  and the supporting plate  151  are connected to each other by the magnetic attraction, the first electric connection part  5  can be in a pin to pin connection to the second electric connection part  6 , so as to realize the wired data transmission between the display assembly  2  and the host assembly  1 . In other words, in addition to the wireless data transmission, the display assembly  2  and the host assembly  1  of the mobile terminal  100  can also communicate with each other through the wired data transmission. The transmission mode of the wired data transmission is electrical transmission, so the transmission speed can be faster than that of the wireless data transmission. However, the wireless data transmission is not restricted by the wiring. Thus, when the host assembly  1  and the display assembly  2  are used separately, according to the needs of users, the host assembly  1  and the display assembly  2  can be communicated with each other via the second internal wireless communication module  21  and the first internal wireless communication module  12  to realize the wireless data transmission between the display assembly  2  and the host assembly  1 . In other embodiments, the first electric connection part  5  and the second electric connection part  6  can also be USB interfaces or electric connectors. 
     As illustrated in  FIG. 19 , the host assembly can further include a detection element  18  and a changeover switch  19 . In response to the detection element  18  detecting that the second electric connection part  6  is electrically connected to the first electric connection part  5 , the changeover switch  19  will change the transmission mode from the wireless data transmission to the wired data transmission. Since the wired data transmission has a higher transmission speed, while an electrical connection between the second electric connection part  6  and the first electric connection part  5  is detected by the detection element  18 , the wireless data transmission between the host assembly  1  and display assembly  2  can be discontinued and changed to the wired data transmission, thereby further improving the reliability of the mobile terminal  100 . 
     Furthermore, as shown in  FIG. 19 , the mobile terminal  100  may further include a button  20  disposed on the first surface  141 . The button  20  may be configured to establish or discontinue the data transmission between the host assembly  1  and the display assembly  2 . The button  20  can be a touch virtual button  20  based on the principle of pressure sensing. The button  20  can be configured to control whether to perform a data transmission between the host assembly  1  and the display assembly  2  or not. The virtual button  20  can have a fool-proofing function. In this way, while the virtual button  20  is no more needed by the user, the virtual button  20  can be controlled to be in a non-use state via a switch function or a way of software setting. 
     When the mobile terminal  100  provided in the present disclosure is used, the host assembly  1  and the display assembly  2  can be used in combination, and the specific method of combining use can be as follows. 
     As shown in  FIG. 1 , when the mobile terminal  100  is in the stacked and combined/assembled use state, the supporting plate  151  can be folded to be received in the receiving groove  142 , and the display assembly  2  can be placed on the base  14 . Due to the existence of the first magnetic element  3  and the magnetic element  4 , the display assembly  2  can be fixed on the first outer face  1516  of the supporting plate  151 . When a communication is needed to be established between the host assembly  1  and the display assembly  2 , the communication can be carried out by the wireless data transmission. 
     As shown in  FIGS. 3 and 5 , when the mobile terminal  100  is in a side-standing and combined/assembled use state, the supporting plate  151  can be fixed with the first angle A relative to the base  4  under the limitation of the limiting protrusions  1521  and the limiting groove  1522 , and the display face  23  of the display assembly  2  can be attached to the inner face  1515  of the supporting plate  151  and abut against the second outer face  1724  of the supporting seat  172 . In this way, the display assembly  2  can be attached to the supporting plate  151  while being used, and user&#39;s hands can be freed. When a communication is needed to be established between the host assembly  1  and the display assembly  2 , the communication can be carried out via the wired data transmission. Meanwhile, the charging between the host assembly  1  and the display assembly  2  can also be carried out through the wireless coil  146  or the first electric connection part  5  and the second electric connection part  6 . 
     As shown in  FIG. 7 , when the display assembly  2  of the mobile terminal  100  needs to be received, the display assembly  2  can be stacked on the base  14 , such that the supporting plate  151  can be folded to abut against the display assembly  2  so as to provide a protection to the display assembly  2 . When a communication is needed between the host assembly  1  and the display assembly  2 , the communication can be established via the wireless data transmission. Charging between the host assembly  1  and the display assembly  2  can be realized through the first electric connection part  5  and the second electric connection part  6 . 
     As shown in  FIG. 2 , the display assembly  2  and the host assembly  1  can be used separately. The display assembly  2  can be detached from the host assembly  1  and used alone. The display assembly  2  can display images via the display screen. When the host assembly  1  and the display assembly  2  need to communicate with each other, the communication can be established via the wired data transmission. 
     The mobile terminal  100  provided in the embodiments of the present disclosure may include two parts which are the host assembly  1  and display assembly  2 . The two parts can be used separately or in combination. When the two parts are used in combination, since the support  15  of the host assembly  1  can be unfolded relative to the base  14  with the first angle A, the display assembly  2  can be supported by the support  15  while being used, thereby freeing user&#39;s hands. When the two parts are used separately, since the base  14  defines the receiving groove  142 , the support  15  can be folded relative to the base  14  to be received in the receiving groove  142  of the base  14 , thereby facilitating the storage of the host assembly  1 . 
       FIGS. 2-4  illustrate an electronic device. The electronic device according to an embodiment of the present disclosure may include an operating mechanism  1  and a display mechanism  2 . The operating mechanism  1  may include a supporting mount  14  and a supporting plate  15 . The supporting plate  15  can be rotatably connected to the supporting mount  14 . When the supporting plate  15  is unfolded with a predetermined angle relative to the supporting mount  14 , the supporting plate  15  can be fixed relative to the supporting mount  14  and cooperatively define a supporting space with the supporting mount  14 . The display mechanism  2  can be capable of communicating with the operating mechanism  1 . When the display mechanism  2  is disposed in the supporting space, the display mechanism  2  may be cooperatively supported by the supporting plate  15  and the supporting mount  14 . 
       FIGS. 2-4  illustrate a mobile terminal. The host assembly  1  according to an embodiment of the present disclosure may be configured for the mobile terminal. The mobile terminal may include an external device  2 . The external device  2  may be detachably connected to the host assembly  1 . The external device  2  may include a first supported face  23 / 24  and a second supported face. The second supported face may be connected to the first supported face  23 / 24 . The host assembly  1  may include a seat  14  and a support  15 . The seat  14  may include a bearing face  141 . The bearing face  141  may define a receiving slot  142 . The support  15  may be rotatably connected to the seat  14 . The support  15  can be capable of being located in the receiving slot  142  and unfolded relative to the seat  14 . The support  15  may include an inner face  1515  facing the bearing face  141 . When the support  15  is unfolded with a predetermined angle relative to the bearing face  141 , the first supported face  23 / 24  of the external device  2  may be attached to the inner face  1515 , and the second supported face  26  of the external device  2  may abut against the seat  14  at a bottom of the receiving slot  142 . 
     The embodiments of the present disclosure have been described in detail above, and the principles and implementations of the present disclosure are described in the specific examples. The description of the above implementations is only used to help understand the method and core spirit of the present disclosure. In the meantime, one with ordinary skills in the art may obtain modifications on the specific embodiments and the application range according to the spirit of the present disclosure. In a word, the description shall not be considered as a limit to the present disclosure.