Electrical connection device and electronic device

Abstract

The application relates to the technical field of electronic equipment, and discloses an electric connection device and electronic equipment. The electric connection device comprises a connector, an elastic piece and a first circuit board assembly which are sequentially stacked along a first direction, and the first direction is parallel to the thickness direction of the first circuit board assembly. The connector comprises a base and a connecting terminal arranged on the base, one end of the connecting terminal is located on the side of the base facing the first circuit board assembly, and the surface of the base facing the first circuit board assembly is provided with a containing groove. The upper boundary of the elastic piece elastically abuts against the first circuit board assembly, and the lower boundary is arranged in the containing groove. When the elastic piece is in a first compressed state, the upper boundary is located outside the containing groove, the first circuit board assembly is spaced apart from one end of the connecting terminal, and the elastic piece can protect the connecting terminal at this time; when the elastic piece is in a second compressed state, the elastic piece is located in the containing groove, so that the elastic height of the connecting terminal cannot be limited, and the first circuit board assembly can stably and elastically abut against one end of the connecting terminal. The deformation amount of the first compressed state is smaller than that of the second compressed state.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and more particularly to an electrical connection device and an electronic device. Background Technology

[0002] Electronic devices typically incorporate multiple circuit board assemblies, which can be positioned differently, for example, at different heights. To enable signal transmission between two circuit board assemblies at different heights, an electrical connection device can be used. This device may include a flexible printed circuit board (FPC) assembly and two connectors. Both ends of the FPC assembly elastically abut one end of each connector's terminal block, and the other ends of the connectors are connected to the two circuit board assemblies in the electronic device. Thus, signals can be transmitted between the two circuit board assemblies via the connectors and the FPC assembly.

[0003] However, during the transportation and handling of electrical connectors, the flexible circuit board assembly is susceptible to vibration and impact from external forces, which can excessively compress one end of the connector terminal, causing excessive deformation and damage. Therefore, protection is needed for one end of the connector terminal; however, current protection methods affect the contact between the connector terminal and the flexible circuit board assembly, resulting in poor connection stability and signal transmission performance of the electrical connector. Utility Model Content

[0004] Some embodiments of this application provide an electrical connection device and electronic device to solve the problem of how to protect the connection terminals while ensuring the contact effect between the connection terminals and the circuit board assembly. The following describes this application from multiple aspects, and the embodiments and beneficial effects of the following aspects can be referred to each other.

[0005] In a first aspect, embodiments of this application provide an electrical connection device, which includes a first circuit board assembly, a connector, and at least one elastic member. The connector, elastic member, and first circuit board assembly are stacked sequentially along a first direction parallel to the thickness direction of the first circuit board assembly. The connector includes a base and a connecting terminal. The connecting terminal is disposed on the base, with one end of the connecting terminal located on the side of the base facing the first circuit board assembly. At least one receiving groove is formed on the surface of the base facing the first circuit board assembly. The upper boundary of the elastic member elastically abuts against the first circuit board assembly, and the lower boundary of the elastic member is disposed in the receiving groove. The elastic member has a first compressed state and a second compressed state. When the elastic member is in the first compressed state, its upper boundary is outside the receiving groove, and the first circuit board assembly and one end of the connecting terminal are spaced apart. When the elastic member is in the second compressed state, it is located inside the receiving groove, and the first circuit board assembly and one end of the connecting terminal elastically abut against each other. The deformation corresponding to the first compressed state is smaller than the deformation corresponding to the second compressed state.

[0006] In the first compressed state of the elastic element, the elastic element can provide support force to the first circuit board assembly. Therefore, the elastic element can buffer the vibration impact generated by the external force on the first circuit board assembly, so that the first circuit board assembly will not excessively compress one end of the connection terminal when it is subjected to vibration by the external force, or cause a small degree of compression to one end of the connection terminal when it is subjected to vibration by the external force. This ensures that one end of the connection terminal will not be excessively deformed and damaged, thus protecting the connection end, reducing the risk of bending or breaking of the connection terminal, and effectively avoiding the problem of electrical connection failure.

[0007] In the second compressed state, the elastic element can be completely contained within the receiving groove. Therefore, the elastic element does not occupy additional height space (e.g., space in the thickness direction of the first circuit board assembly). The elastic element can avoid the movement of the first circuit board assembly during elastic contact with one end of the connecting terminal, thus the elastic element does not restrict the spring height of one end of the connecting terminal. This allows one end of the connecting terminal and the first circuit board assembly to maintain stable elastic contact for signal transmission. Therefore, when assembling an electrical connection device into an electronic device, an external force can be applied to the elastic element to place it in the second compressed state, thereby preventing the elastic element from affecting the spring height of one end of the connecting terminal, and thus improving the overall connection stability and signal transmission performance of the electronic device.

[0008] In one possible implementation of the first aspect described above, the elastic member, when in a first compressed state, is used to buffer the vibrational impact generated by the first circuit board assembly. When in a second compressed state, the elastic member is used to avoid movement of the first circuit board assembly during elastic contact with one end of the connecting terminal.

[0009] In one possible implementation of the first aspect described above, there are multiple elastic elements and receiving slots, with each elastic element corresponding to one of the multiple receiving slots, and the lower boundary of each elastic element being located in the corresponding receiving slot. Multiple elastic elements are arranged around the connecting terminal.

[0010] Multiple elastic elements provide more stable support to the first circuit board assembly during the initial compression state, thereby uniformly buffering the vibration and impact generated by external forces and improving the overall structural stability and impact resistance. Secondly, by using multiple elastic elements, the load on each individual element is reduced, thus extending their service life. Finally, multiple elastic elements serve as redundancy; if one element fails, another can still function, ensuring high reliability.

[0011] In one possible implementation of the first aspect described above, there are two elastic elements, positioned on opposite sides of the connecting terminal along the length of the first circuit board assembly. This allows the elastic elements to provide better cushioning.

[0012] In one possible implementation of the first aspect described above, the number of elastic elements is one, and the elastic element is a ring structure and is arranged around the connecting terminal.

[0013] By setting the elastic element as a ring structure surrounding the connector terminals, the vibration and impact generated by external forces on the first circuit board assembly can be buffered more evenly, improving the overall structural stability and impact resistance. Furthermore, only one elastic element is needed to achieve a uniform buffering effect, resulting in a simpler overall structure and lower assembly difficulty.

[0014] In one possible implementation of the first aspect described above, the electrical connection device further includes a guide post extending along a first direction, the guide post passing through the first circuit board assembly along the first direction and extending into a receiving groove, with an elastic element sleeved on the guide post.

[0015] In this way, the guide post will not impede the movement of the first circuit board assembly during its elastic contact with one end of the connecting terminal. Simultaneously, the guide post can guide the elastic element to deform in a predetermined direction, ensuring that the deformation of the elastic element is consistent with design requirements and preventing damage due to deformation in other unexpected directions. This effectively improves the stability of the elastic element's deformation, reduces instability factors caused by deformation, and enhances the cushioning effect of the elastic element. Furthermore, the guide post can serve a positioning function, facilitating precise alignment of the first circuit board assembly and connector during assembly and preventing misalignment.

[0016] In one possible implementation of the first aspect described above, the base has a first positioning hole that connects to the receiving groove, and the guide post passes through the base along a first direction via the receiving groove and the first positioning hole. Thus, the guide post can extend to the side of the base opposite to the first circuit board assembly, facilitating engagement with positioning holes on other components to achieve precise positioning.

[0017] In one possible implementation of the first aspect described above, the cross-sectional dimension of the first positioning hole is smaller than the cross-sectional dimension of the receiving groove, wherein the cross-section of the first positioning hole and the cross-section of the receiving groove are respectively perpendicular to the first direction.

[0018] In this way, it can be ensured that the receiving groove has at least a partial bottom wall to limit the elastic element and prevent the elastic element from coming out of the receiving groove through the first positioning hole.

[0019] In one possible implementation of the first aspect described above, the elastic element is a spring.

[0020] Secondly, embodiments of this application provide an electronic device including a second circuit board assembly and an electrical connection device in the first aspect and any possible implementation of the first aspect, wherein the second circuit board assembly is located on the side of the connector opposite to the first circuit board assembly and is connected to the other end of the connector's connection terminal, and the elastic member is in a second compressed state.

[0021] In one possible implementation of the second aspect described above, the elastic member, when in the second compressed state, is used to avoid movement of the first circuit board assembly during elastic contact with one end of the connecting terminal.

[0022] In one possible implementation of the second aspect described above, the electrical connection device further includes a guide post extending along a first direction, a base having a first positioning hole communicating with a receiving groove, and a second positioning hole being provided on the second circuit board assembly. Along the first direction, the guide post penetrates the first circuit board assembly, passes through the receiving groove and the first positioning hole, penetrates the base, and extends into the second positioning hole, with an elastic element sleeved on the guide post.

[0023] It should be understood that the beneficial effects of the second aspect mentioned above can be referred to the description of the first aspect mentioned above, and the beneficial effects of any possible implementation of the second aspect mentioned above can be referred to the description of any possible implementation of the first aspect mentioned above, which will not be repeated here. Attached Figure Description

[0024] Figure 1A Exploded views of some structures in electronic devices in some technical solutions are shown;

[0025] Figure 1B This illustrates some technical solutions in which electronic devices are... Figure 1A A partial assembly drawing of region S1 shown;

[0026] Figure 1C This shows a bottom view of a portion of the structure of an electrical connection device in an electronic device in some technical solutions;

[0027] Figure 1D according to Figures 1A to 1C This diagram illustrates a structure in some technical solutions where the first end of the connecting terminal does not undergo elastic deformation.

[0028] Figure 2A An assembly diagram of the connector and floating cover in some technical solutions is shown;

[0029] Figure 2B Assembly diagram 2 shows the connector and floating cover in some technical solutions;

[0030] Figure 2C Exploded views of connectors and floating covers in some technical solutions are shown;

[0031] Figure 3 Assembly diagrams of electrical connection devices in other technical solutions are shown;

[0032] Figure 4A An assembly diagram of the electrical connection device in an embodiment of this application is shown;

[0033] Figure 4B Assembly diagram two of the electrical connection device in an embodiment of this application is shown;

[0034] Figure 4C An exploded view of the electrical connection device in an embodiment of this application is shown;

[0035] Figure 5 This illustration shows an assembly diagram of the circuit board assembly of the electrical connection device and the electronic device in an embodiment of this application;

[0036] Figure 6A A schematic diagram showing the contact between the connector and the circuit board assembly in an embodiment of this application is shown;

[0037] Figure 6B A schematic diagram of the soldering of the connector to the circuit board assembly in an embodiment of this application is shown;

[0038] Figure 7A This illustrates one arrangement of the elastic element and the receiving groove in an embodiment of this application;

[0039] Figure 7B This illustrates a second layout configuration of the elastic element and the receiving groove in an embodiment of this application;

[0040] Figure 8 according to Figure 5 An exploded view of a portion of the structure of the electronic device in an embodiment of this application is shown;

[0041] Figure 9 An exemplary structure of the first positioning hole on the base is shown in an embodiment of this application;

[0042] Figure 10A A schematic diagram of the assembly of the electrical connection device in an embodiment of this application is shown;

[0043] Figure 10B A second assembly schematic diagram of the electrical connection device in an embodiment of this application is shown;

[0044] Figure 10C This application illustrates the assembly of the electrical connection device in an embodiment. Figure 3 . Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0046] This application provides an electrical connection device and an electronic device. The electrical connection device enables an electrical connection between two electronic components in the electronic device, allowing signals to be transmitted between them. The electronic components may be, for example, circuit board assemblies, chip assemblies, etc., and this application does not impose specific limitations on them. The electronic device may be, for example, a mobile phone, tablet computer, laptop computer, desktop computer, or wearable device (e.g., smartwatch, bracelet, etc.), and this application does not impose specific limitations on it.

[0047] Figure 1A and Figure 1B Exemplary structures of some components in electronic device 1 in some technical solutions are shown, wherein, Figure 1A This is an exploded view of a portion of the structure of electronic device 1. Figure 1B For electronic device 1 in Figure 1A The partial assembly drawing of region S1 is shown. Figure 1C A bottom view of a portion of the structure of the electrical connection device 10 in an electronic device 1 in some technical solutions is shown.

[0048] refer to Figures 1A to 1C The electronic device 1 may include an electrical connection device 10, a circuit board assembly 20, and a circuit board assembly 30. The circuit board assembly 20 and the circuit board assembly 30 are respectively connected to the two ends of the electrical connection device 10, thereby realizing the electrical connection between the circuit board assembly 20 and the circuit board assembly 30, and thus the signal between the circuit board assembly 20 and the circuit board assembly 30 can be transmitted through the electrical connection device 10.

[0049] Specifically, taking the assembly of circuit board assembly 20 and electrical connection device 10 as an example, at the left end of electrical connection device 10, electrical connection device 10 may include circuit board assembly 100, connector 200, upper cover plate 300, and screw 400. Circuit board assembly 20, connector 200, circuit board assembly 100, and upper cover plate 300 are stacked sequentially along the Z1 direction, and the Z1 direction is parallel to the thickness direction Z of circuit board assembly 100.

[0050] The connector 200 includes a base 210 and a connecting terminal 220. The connecting terminal 220 passes through the base 210, and one end of the connecting terminal 220 (e.g., the first end 221) is located on the side of the base 210 facing the circuit board assembly 100 to elastically abut against the circuit board assembly 100; the other end of the connecting terminal 220 (e.g., the second end 222) is located on the side of the base 210 facing the circuit board assembly 20 to connect to the circuit board assembly 20. Figure 1B As shown, the circuit board assembly 20 may include a support backplate 21 and a printed circuit board 22 stacked sequentially along the Z1 direction. The second end 222 of the connection terminal 220 can be soldered to the printed circuit board 22 of the circuit board assembly 20, and solder balls 40 are provided between the second end 222 of the connection terminal 220 and the printed circuit board 22 of the circuit board assembly 20. In this way, an electrical connection can be achieved between the circuit board assembly 20 and the circuit board assembly 100.

[0051] The screw 400 passes through the upper cover plate 300, circuit board assembly 100, and connector 200 of the electrical connection device 10 from top to bottom in the Z1 direction, and finally enters the circuit board assembly 20 and is locked to the circuit board assembly 20 by threads, thereby ensuring that the electrical connection device 10 and the circuit board assembly 20 can be stably connected.

[0052] It is understood that the locking force between the screw 400 and the circuit board assembly 20 can compress the first end 221 of the connection terminal 220 of the circuit board assembly 100 and the connector 200, thereby causing the first end 221 of the connection terminal 220 to undergo elastic deformation, and thus allowing the first end 221 of the connection terminal 220 of the connector 200 and the circuit board assembly 100 to elastically abut against each other to transmit signals.

[0053] For example, Figure 1D according to Figures 1A to 1C A schematic diagram is shown of a structure in some technical solutions where the first end 221 of the connecting terminal 220 does not undergo elastic deformation. (Reference) Figure 1DWhen the first end 221 of the connecting terminal 220 is in a natural state without external force, no elastic deformation occurs, and the distance between the highest point of the first end 221 of the connecting terminal 220 and the first surface F1 of the base 210 is H1. When the first end 221 of the connecting terminal 220 is compressed, the first end 221 of the connecting terminal 220 can be compressed by… Figure 1D The status shown has switched to Figure 1B In the state shown, the first end 221 of the connection terminal 220 undergoes elastic deformation, and the first surface F1 of the base 210 can stop the circuit board assembly 100, thereby ensuring that the first end 221 of the connection terminal 220 of the connector 200 and the circuit board assembly 100 do not excessively abut each other, so as to be able to transmit signals stably.

[0054] Continue reading Figure 1A and Figure 1C The circuit board assembly 100 can extend from one end of the electrical connection device 10 to the other end to be connected to the circuit board assembly 30, thereby enabling signal transmission between the circuit board assembly 20 and the circuit board assembly 30. The electrical connection method between the circuit board assembly 30 and the circuit board assembly 100 is substantially the same as that between the circuit board assembly 20 and the circuit board assembly 100; therefore, the above description of the circuit board assembly 20 and the circuit board assembly 100 will be used as a reference, and will not be repeated here.

[0055] In some embodiments, the circuit board assembly 100 can be a flexible circuit board assembly, which is flexible and easily deformable, thereby adapting to complex installation environments.

[0056] In some embodiments, the circuit board assembly 20 may include a support backplate 21 (BP) and a printed circuit board 22 (PCB) stacked sequentially along the Z1 direction. The support backplate 21 supports the printed circuit board 22, which is connected to the second end 222 of the connection terminal 220 of the connector 200 to enable signal transmission.

[0057] In some embodiments, the circuit board assembly 30 may include a support backplate 31 and a printed circuit board 32 stacked sequentially along the Z1 direction. The function and structure of the support backplate 31 are substantially the same as those of the support backplate 21 described above, and the function and structure of the printed circuit board 32 are substantially the same as those of the printed circuit board 22 described above. Therefore, the descriptions of the support backplate 21 and the printed circuit board 22 described above can be referred to, and will not be repeated here.

[0058] It is worth noting that the above Figures 1A to 1DDuring transportation and handling, the circuit board assembly 100 of the electrical connection device 10 may be subjected to vibration and impact from external forces. Since the circuit board assembly 100 elastically abuts against the first end 221 of the connection terminal 220, and the first end 221 of the connection terminal 220 of the connector 200 is exposed outside the base 210 of the connector 200, and the mechanical properties of the base 210 are insufficient to withstand the vibration and impact of the circuit board assembly 100, when the circuit board assembly 100 is subjected to vibration and impact from external forces, it will excessively compress the first end 221 of the connection terminal 220, causing excessive deformation and damage to the first end 221 of the connection terminal 220, thereby causing the electrical connection of the electrical connection device 10 to fail.

[0059] Therefore, it is necessary to protect the first end 221 of the connection terminal 220 to prevent the first end 221 of the connection terminal 220 from being damaged by the impact of the circuit board assembly 100. Several protection schemes are described below with reference to the accompanying drawings.

[0060] In some technical solutions, a flexible floating cover is used to protect the first end 221 of the connection terminal 220. Specifically, Figure 2A This shows an assembly diagram of connector 200 and floating cover 500 in some technical solutions. Figure 2B Assembly diagram two shows the connector 200 and floating cover 500 in some technical solutions. Figure 2C Exploded views of connector 200 and floating cover 500 in some technical solutions are shown.

[0061] refer to Figures 2A to 2C The floating cover 500 is disposed on the base 210 of the connector 200 and is elastically connected to the base 210 by a spring 600, so that the floating cover 500 can float up and down relative to the base 210 in the Z direction.

[0062] The floating cover 500 includes a receiving groove 510, which allows the floating cover 500 to be moved to protect the first end 221 of the connection terminal 220 when protection is required. Figure 2A The position shown is such that the first end 221 of the connecting terminal 220 is located within the receiving groove 510, thereby allowing the floating cover 500 to protect the connecting terminal 220. This is necessary when assembling the electrical connection device 10 with... Figures 1A to 1D In the electronic device 1 shown, the circuit board assembly 20, when enabling signal transmission, allows the electrical connection device 10 to be secured to the circuit board assembly 20 via screws 400. The securing force between the screws 400 and the circuit board assembly 20 can compress the floating cover 500, allowing the floating cover 500 to move to... Figure 2BThe position shown allows the first end 221 of the connection terminal 220 to be exposed in the receiving groove 510, thereby allowing the first end 221 of the connection terminal 220 to elastically abut against the circuit board assembly 100 of the electrical connection device 10.

[0063] However, this reduces the spring height of the first end 221 of the connecting terminal 220, thereby affecting the contact effect between the first end 221 of the connecting terminal 220 and the circuit board assembly 100, resulting in poor connection stability and signal transmission performance of the electrical connection device 10. The spring height of the first end 221 of the connecting terminal 220 refers to the distance between the highest point of the first end 221 of the connecting terminal 220 and the stop surface in its natural state; that is, the maximum deformable height of the first end 221 of the connecting terminal 220 after it contacts the circuit board assembly 100. For example, refer to... Figure 1D When the floating cover 500 is not installed, the spring height of the first end 221 of the connecting terminal 220 is the distance H1 between the highest point of the first end 221 and the first surface F1 of the base 210. (Reference) Figure 2B After the floating cover 500 is set, the floating cover 500 will occupy an additional part of the height space (e.g., the space in the Z direction). The spring height of the first end 221 of the connecting terminal 220 is the distance H2 between the highest point of the first end 221 and the second surface F2 of the floating cover 500, where H2 is less than H1.

[0064] Furthermore, the above Figures 2A to 2C The proposed solution requires additional components such as a floating cover 500 and a spring 600 to achieve the floating effect of the floating cover 500. The large number of components increases the manufacturing and assembly costs significantly.

[0065] In other technical solutions, a boss is provided to protect the first end 221 of the connecting terminal 220. Specifically, Figure 3 Assembly diagrams of the electrical connection device 10 in other technical solutions are shown. (Refer to...) Figure 3 The electrical connection device 10 includes a boss 700, which is disposed between the circuit board assembly 100 and the base 210 of the connector 200 to stop the circuit board assembly 100. In this way, the circuit board assembly 100 can avoid excessive compression of the first end 221 of the connection terminal 220, thereby protecting the first end 221 of the connection terminal 220.

[0066] However, the boss 700 will also occupy additional height space (e.g., space in the Z direction), thereby reducing the spring height of the first end 221 of the connection terminal 220 and affecting the contact effect between the first end 221 of the connection terminal 220 and the circuit board assembly 100.

[0067] To solve the above problems, the electrical connection device in this application embodiment may include an elastic element (or "spacer"). The base of the connector of the electrical connection device has a receiving groove on the surface of the circuit board assembly of the electrical connection device. The upper boundary of the elastic element elastically abuts against the circuit board assembly of the electrical connection device, and the lower boundary of the elastic element is disposed in the receiving groove. The elastic element has a first compression state and a second compression state.

[0068] When the elastic element is subjected to a first pressure, it can be in a first compressed state. At this time, the first end of the elastic element is located outside the receiving groove, so that the circuit board assembly of the electrical connection device and the first end of the connection terminal are spaced apart. When the elastic element is in the first compressed state, it can support the circuit board assembly of the electrical connection device to buffer the vibration and impact caused by external forces. This prevents the circuit board assembly of the electrical connection device from excessively compressing the first end of the connection terminal, or causes only a small degree of compression on the first end of the connection terminal, thereby avoiding excessive deformation and damage to the first end of the connection terminal and reducing the risk of bending or breaking of the connection terminal (or "pin collapse risk").

[0069] When the elastic element is subjected to a second pressure greater than the first pressure, it can be in a second compressed state, where the deformation is greater than that in the first compressed state. At this time, the elastic element is located within the receiving groove, and the circuit board assembly of the electrical connection device abuts against the first end of the connecting terminal. In the second compressed state, the elastic element does not occupy additional height space, thus avoiding movement of the circuit board assembly during elastic contact with the first end of the connecting terminal. Therefore, the elastic element does not restrict the spring height of the first end of the connecting terminal; the spring height remains the distance between the highest point of the first end and the upper surface of the base. This allows the first end of the connecting terminal and the circuit board assembly of the electrical connection device to maintain stable elastic contact, effectively improving the connection stability and signal transmission performance of the electrical connection device.

[0070] The technical solution of this application is described below with reference to the accompanying drawings.

[0071] Figures 4A to 4C An exemplary structure of the electrical connection device 10 in an embodiment of this application is shown, wherein, Figure 4A This is the assembly drawing 1 for the electrical connection device 10. Figure 4B Assembly drawing 2 for the electrical connection device. Figure 4C This is an exploded view of the electrical connection device 10. It is understood that this is done for the sake of simplicity. Figure 4A and Figure 4CThe portion of the electrical connection device 10 for assembly with the circuit board assembly 20 (as an example of a second circuit board assembly) or circuit board assembly 30 (as another example of a second circuit board assembly) of the electronic device 1 is shown only schematically.

[0072] refer to Figures 4A to 4C The electrical connection device 10 includes a circuit board assembly 100 (as an example of a first circuit board assembly), a connector 200, and at least one elastic element 800. The connector 200, the elastic element 800, and the circuit board assembly 100 are stacked sequentially along the Z1 direction (as an example of a first direction).

[0073] The circuit board assembly 100 is used for signal transmission. In some embodiments of this application, the circuit board assembly 100 can be a flexible circuit board assembly, characterized by its flexibility and ease of deformation, thereby adapting to complex installation environments. In some implementations, the circuit board assembly 100 may include a flexible circuit board 110 and a reinforcing plate 120 stacked sequentially along the Z1 direction. The reinforcing plate 120 can enhance the strength of the flexible circuit board 110 to ensure the electrical connection between the flexible circuit board 110 and the connector 200, but this application is not limited to this. For example, in some other embodiments, the circuit board assembly 100 may also include the flexible circuit board 110 but not the reinforcing plate 120. Furthermore, in some other embodiments, the circuit board assembly 100 may also include a printed circuit board.

[0074] The connector 200 includes a base 210 and connecting terminals 220. The connecting terminals 220 are disposed on the base 210, with their first ends 221 located on the side of the base 210 facing the circuit board assembly 100 for connection to the circuit board assembly 100. The number of connecting terminals 220 can be one or more, for example, two, three, or four, and this application does not limit this. The upper surface F1 of the base 210 facing the circuit board assembly 100 has at least one receiving groove 211 for accommodating elastic members 800. The number of receiving grooves 211 corresponds one-to-one with the number of elastic members 800. For example, in… Figures 4A to 4C In the illustrated embodiment, the number of elastic elements 800 can be two, and the number of receiving grooves 211 can also be two, but this application is not limited to this. In other embodiments, the number of elastic elements 800 can also be three, four, or five, etc., and the number of receiving grooves 211 also needs to be adapted accordingly.

[0075] by Figures 4A to 4CTaking the elastic element 800 on the left as an example, the upper boundary 810 of the elastic element 800 elastically abuts against the circuit board assembly 100, and the lower boundary 820 of the elastic element 800 is located in the receiving groove 211. It can be understood that the elastic element 800 has two ends in the Z direction. The upper boundary 810 of the elastic element 800 refers to the end of the elastic element 800 that contacts the circuit board assembly 100, and the lower boundary 820 of the elastic element 800 refers to the end of the elastic element 800 that contacts the groove wall of the receiving groove 211. Alternatively, it can be said that the upper boundary 810 of the elastic element 800 is the beginning of the elastic element 800, and the lower boundary 820 of the elastic element 800 is the end of the elastic element 800, with the elastic element 800 extending from the upper boundary 810 to the lower boundary 820.

[0076] The elastic element 800 has a first compression state and a second compression state, and the deformation of the first compression state is less than that of the second compression state. That is, the first pressure on the elastic element 800 when it is in the first compression state is less than the second pressure on the elastic element 800 when it is in the second compression state.

[0077] like Figure 4A As shown, the elastic element 800 is in a first compressed state. At this time, the first pressure borne by the elastic element 800 can be the total weight of the circuit board assembly 100 and the upper cover plate 300. When the elastic element 800 is in the first compressed state, its upper boundary 810 is located outside the receiving groove 211. The dimension D1 of the elastic element 800 along the Z1 direction is greater than the dimension D0 of the receiving groove 211 along the Z1 direction. It can be understood that the dimension D0 of the receiving groove 211 along the Z1 direction is the groove depth of the receiving groove 211. Thus, the circuit board assembly 100 and the first end 221 of the connecting terminal 220 are spaced apart, and the gap between the circuit board assembly 100 and the first end 221 of the connecting terminal 220 is greater than 0. It is understandable that at this time, the dimension D1 of the elastic element 800 along the Z1 direction is greater than the height D2 of the first end 221 of the connecting terminal 220 protruding from the bottom wall of the receiving groove 211. In other words, along the Z1 direction, the upper boundary 810 of the elastic element 800 is further away from the bottom wall of the receiving groove 211 than the first end 221 of the connecting terminal 220.

[0078] In the first compressed state of the elastic element 800, the elastic element 800 can provide a supporting force along the Z1 direction to the circuit board assembly 100. Therefore, the elastic element 800 can buffer the vibration impact generated by the external force on the circuit board assembly 100, so that the circuit board assembly 100 will not excessively compress the first end 221 of the connection terminal 220 when it is subjected to vibration by the external force, or, so that the circuit board assembly 100 will cause a small degree of compression to the first end 221 of the connection terminal 220 when it is subjected to vibration by the external force. This ensures that the first end 221 of the connection terminal 220 will not be excessively deformed and damaged, thus protecting the connection terminal 220, reducing the risk of bending or breaking of the connection terminal (or "pin collapse risk"), and effectively avoiding the problem of electrical connection failure.

[0079] like Figure 4B As shown, the elastic member 800 is in a second compressed state. In this state, the second pressure on the elastic member 800 can be an assembly force applied after the electrical connection device 10 is assembled into the electronic device (not shown), or a manually applied external force. When the elastic member 800 is in the second compressed state, its upper boundary 810 is located within the receiving groove 211, and the dimension D3 of the elastic member 800 along the Z1 direction is equal to the dimension D0 of the receiving groove 211 along the Z1 direction. This allows the circuit board assembly 100 to elastically abut against the first end 221 of the connecting terminal 220, with a zero gap between the circuit board assembly 100 and the first end 221 of the connecting terminal 220. It can be understood that, at this time, the dimension D3 of the elastic member 800 along the Z1 direction is equal to the height D4 of the first end 221 of the connecting terminal 220 protruding relative to the bottom wall of the receiving groove 211.

[0080] In the second compressed state, the elastic member 800 can be completely located within the receiving groove 211. Therefore, the elastic member 800 does not occupy additional height space (e.g., space in the Z direction). The elastic member 800 can avoid the movement generated by the circuit board assembly 100 during elastic contact with the first end 221 of the connecting terminal 220. Thus, the elastic member 800 does not restrict the spring height of the first end 221 of the connecting terminal 220, thereby allowing the first end 221 of the connecting terminal 220 and the circuit board assembly 100 to stably contact each other for signal transmission. Therefore, when it is necessary to assemble the electrical connection device 10 into the electronic device 1, an external force can be applied to the elastic member 800 to put the elastic member 800 in the second compressed state, thereby preventing the elastic member 800 from affecting the spring height of the first end 221 of the connecting terminal 220, and thus improving the overall connection stability and signal transmission effect of the electronic device 1.

[0081] For example, Figure 5 This illustration shows an assembly diagram of the electrical connection device 10 and the circuit board assembly 20 of the electronic device 1 in an embodiment of this application. (Refer to...) Figure 5 and combined Figures 4A to 4C The electrical connection device 10 provided in this application may further include a top cover plate 300 and a screw 400. The top cover plate 300 is located on the side of the circuit board assembly 100 facing the Z1 direction, and the circuit board assembly 20 is located on the side of the connector 200 facing away from the Z1 direction. The screw 400 passes through the top cover plate 300, the circuit board assembly 100, and the connector 200 sequentially from top to bottom facing away from the Z1 direction, and finally passes into the circuit board assembly 20, and is locked to the circuit board assembly 20 by threads. The locking force between the screw 400 and the circuit board assembly 20 can compress the elastic member 800, so that the elastic member 800 is... Figure 4A The first compression state shown switches to Figure 4B and Figure 5 The second compression state is shown, where the second pressure is the locking force between the screw 400 and the circuit board assembly 20. At this time, the elastic member 800 is located within the receiving groove 211. Therefore, the elastic member 800 does not occupy additional space in the Z direction. The elastic member 800 can avoid the movement generated by the circuit board assembly 100 during elastic contact with the first end 221 of the connecting terminal 220. Thus, the elastic member 800 does not restrict the spring height of the first end 221 of the connecting terminal 220, thereby ensuring stable contact between the first end 221 of the connecting terminal 220 and the circuit board assembly 100, resulting in better overall connection stability and signal transmission performance of the electronic device 1.

[0082] In addition, compared to the above Figures 2A to 2C The solution shown in this application provides an electrical connection device 10 that can protect the first end 221 of the connection terminal 220 by adding an additional elastic member 800, while not limiting the spring height of the first end 221 of the connection terminal 220. This results in fewer components and lower manufacturing and assembly costs.

[0083] Continue reading Figures 4A to 5 In some embodiments of this application, connector 200 may be a socket connector, and correspondingly, base 210 of connector 200 may be referred to as “housing” or “socket insulator”, and connection terminal 220 of connector 200 may be referred to as “socket terminal” or “contact”.

[0084] In some implementations, the base 210 of the connector 200 may be made of materials such as nylon, plastic, or low-pressure cured polyurethane (LCP), and this application does not impose any specific limitations on this.

[0085] When connector 200 is a socket connector, connector 200 can be connected to circuit board assembly 20 in electronic device 1 by means of flexible contact or soldering.

[0086] Specifically, Figure 6A A schematic diagram showing the connector 200 abutting against the circuit board assembly 20 in an embodiment of this application is shown. (See reference...) Figure 6A In some implementations, the first end 221 of the connector 200's connection terminal 220 contacts the circuit board assembly 100, and the second end 222 of the connector 200's connection terminal 220 contacts the circuit board assembly 20. Pressure is applied to the circuit board assemblies 100 and 20 to move them to the positions shown by the dashed lines, thereby clamping the connector 200's connection terminal 220. This causes the connection terminal 220 to elastically deform, changing to the state shown by the dashed lines. At this time, the first end 221 of the connector 200's connection terminal 220 can elastically abut against the circuit board assembly 100 to achieve an electrical connection; the second end 222 of the connector 200's connection terminal 220 can elastically abut against the circuit board assembly 20 to achieve an electrical connection. Thus, the circuit board assemblies 100 and 20 can transmit signals through the connector 200. The signal transmission path could be, for example, […]. Figure 6A The path indicated by the dashed arrow: a signal is transmitted from circuit board assembly 100 to circuit board assembly 20 via connection terminal 220, and conversely, a signal can also be transmitted from circuit board assembly 20 to circuit board assembly 100 via connection terminal 220. This assembly method can also be referred to as a land grid array (LGA) / land grid array assembly method.

[0087] Figure 6B A schematic diagram showing the soldering of connector 200 to circuit board assembly 20 in an embodiment of this application is shown. (See reference...) Figure 6B In some other implementations, the first end 221 of the connector 200's connection terminal 220 elastically abuts against the circuit board assembly 100 to achieve an electrical connection; the second end 222 of the connector 200's connection terminal 220 has solder balls 40 between it and the circuit board assembly 20. The second end 222 of the connector 200's connection terminal 220 and the circuit board assembly 20 are soldered together using a reflow soldering process to achieve an electrical connection. Thus, the circuit board assembly 100 and the circuit board assembly 20 can transmit signals through the connector 200. This assembly method can also be referred to as a planar grid array / ball grid array (BGA) assembly method.

[0088] Continue reading Figures 4A to 5In some embodiments of this application, the number of elastic members 800 and receiving grooves 211 can each be two, with two elastic members 800 and two receiving grooves 211 corresponding one-to-one, and the lower boundary 820 of each elastic member 800 being disposed within the corresponding receiving groove 211. Furthermore, the two elastic members 800 are arranged around the connection terminal 220 of the connector 200 to avoid the elastic members 800 occupying the layout space of the connection terminal 220.

[0089] In the first compressed state, the two elastic elements 800 can provide a more stable supporting force along the Z1 direction to the circuit board assembly 100, thereby uniformly buffering the vibration and impact generated by external forces on the circuit board assembly 100 and improving the overall structural stability and impact resistance. Secondly, by setting two elastic elements 800, the load borne by a single elastic element 800 can be reduced, thereby extending the service life of the elastic element 800. Finally, the two elastic elements 800 can serve as part of a redundancy system; if one elastic element 800 fails, the other elastic element 800 can still continue to function, ensuring high reliability.

[0090] It can be understood that when the connector 200 has multiple connection terminals 220, the arrangement of two elastic members 800 surrounding the connection terminals 220 of the connector 200 means that the two elastic members 800 are arranged around the connection terminal array formed by the multiple connection terminals 220. When the connector 200 has only one connection terminal 220, the arrangement of two elastic members 800 surrounding the connection terminal 220 of the connector 200 means that the two elastic members 800 are arranged around that single connection terminal 220.

[0091] Continue reading Figures 4A to 5 In some implementations, along the length direction of the circuit board assembly 100 (e.g., Figures 4A to 5 (As shown in the X direction), the two elastic elements 800 can be respectively disposed on opposite sides of the connection terminal 220 of the connector 200, so that the elastic elements 800 can provide a better cushioning effect. Wherein, the X direction is perpendicular to the Z direction.

[0092] It is understood that the orientation of the two receiving grooves 211 corresponds to the orientation of the two elastic elements 800. Therefore, you can refer to the description of the orientation of the two elastic elements 800, which will not be repeated here.

[0093] The above Figures 4A to 5 This illustration merely shows an exemplary layout of the elastic element 800 and the receiving groove 211 and does not constitute a limitation of this application. In other embodiments, the number of elastic elements 800 and receiving grooves 211 may be more (e.g., three, four, five, or six, etc.) or fewer (e.g., one), as exemplified below.

[0094] Figure 7A and Figure 7B Several layout configurations of the elastic element 800 and the receiving groove 211 in embodiments of this application are shown, wherein, Figure 7A and Figure 7B This is a top view of connector 200.

[0095] refer to Figure 7A In some embodiments of this application, the number of elastic elements 800 and receiving grooves 211 can be six, with six elastic elements 800 and six receiving grooves 211 corresponding one-to-one, and the lower boundary (not shown) of each elastic element 800 being located within the corresponding receiving groove 211. Furthermore, the six elastic elements 800 are arranged around the connection terminal 220 of the connector 200.

[0096] For example, two elastic members 800 may be disposed on opposite sides of the connection terminal 220 of the connector 200 along the X direction, and the other four elastic members 800 may be disposed along the width direction of the circuit board assembly 100 (e.g., Figure 7A The six elastic members 800 are arranged in pairs on opposite sides of the connection terminals 220 of the connector 200 (as shown in the Y direction), so that the six elastic members 800 can be arranged around the connection terminals 220 of the connector 200. The Y direction is perpendicular to the X and Z directions.

[0097] It is understood that the orientation of the six receiving slots 211 corresponds to the orientation of the six elastic elements 800. Therefore, please refer to the description of the orientation of the six elastic elements 800, which will not be repeated here.

[0098] By setting multiple elastic elements 800, the vibration and impact generated by external forces on the circuit board assembly 100 can be buffered more evenly, improving the overall structural stability and impact resistance, while further extending the service life of the elastic elements 800, and having better redundancy and high reliability.

[0099] refer to Figure 7B In some embodiments of this application, the number of elastic element 800 and receiving groove 211 can also be one. Both elastic element 800 and receiving groove 211 are annular structures, respectively surrounding the connection terminal 220 of connector 200. By setting the elastic element 800 as an annular structure surrounding the connection terminal 220 of connector 200, the vibration and impact generated by external forces on the circuit board assembly 100 can be buffered more evenly, improving the overall structural stability and impact resistance. Furthermore, only one elastic element 800 is needed to achieve a uniform buffering effect, resulting in a simpler overall structure and lower assembly difficulty.

[0100] In some embodiments of this application, the elastic element 800 can be a spring, but this application is not limited thereto. In other embodiments, the elastic element 800 can also be an elastic washer, an elastic film, a shape memory alloy, etc.

[0101] Continue reading Figures 4A to 5 In some embodiments of this application, the electrical connection device 10 may further include a guide post 900. The guide post 900 extends along the Z1 direction and penetrates the circuit board assembly 100 along the Z1 direction, extending into the receiving groove 211 of the base 210 of the connector 200. In this way, it can be ensured that the guide post 900 does not impede the movement of the circuit board assembly 100 during elastic contact with the first end 221 of the connection terminal 220.

[0102] The elastic element 800 is sleeved on the guide post 900. The guide post 900 can guide the elastic element 800 to deform along the Z direction, so that the elastic element 800 can... Figure 4A The first compression state shown and Figure 4B and Figure 5 The switching between the second compression state is shown. By setting the guide post 900 to guide the elastic element 800 to deform in a predetermined direction, it can be ensured that the deformation of the elastic element 800 is consistent with the design requirements, and the elastic element 800 is prevented from deforming and being damaged in other unexpected directions. This can effectively improve the stability of the deformation of the elastic element 800, reduce the instability factors caused by the deformation of the elastic element 800, and make the cushioning effect of the elastic element 800 better.

[0103] In addition, the guide post 900 can also serve as a positioning tool to ensure that the circuit board assembly 100 and the connector 200 are precisely aligned during assembly, thus avoiding misalignment.

[0104] Based on the above Figures 4A to 5 In some feasible embodiments, the guide post 900 in the illustrated embodiment can also play a role in installation and positioning during the assembly of the electrical connection device 10 into the electronic device 1. The following is an exemplary description in conjunction with the accompanying drawings.

[0105] Specifically, Figure 8 according to Figure 5 An exploded view of a portion of the structure of electronic device 1 in an embodiment of this application is shown. (Reference) Figure 8 and combined Figure 5 In some embodiments of this application, a first positioning hole 212 may be provided on the base 210. The first positioning hole 212 communicates with the receiving groove 211. The guide post 900 can pass through the base 210 along the Z1 direction via the receiving groove 211 and the first positioning hole 212. In this way, the guide post 900 can extend to the side of the base 210 facing away from the circuit board assembly 100, so as to cooperate with the positioning holes on other components to achieve precise positioning.

[0106] For example, the positioning holes on other components can be, for instance, the second positioning hole 23 opened on the circuit board assembly 20. In this way, along the Z1 direction, the guide post 900 can pass through the first circuit board assembly 100, and through the base 210 via the receiving groove 211 and the first positioning hole 212, and extend into the second positioning hole 23 of the circuit board assembly 20, thereby enabling the circuit board assembly 100, the connector 200 and the circuit board assembly 20 to be precisely aligned during assembly, avoiding misalignment problems.

[0107] The circuit board assembly 20 may include a support back plate 21 and a printed circuit board 22 stacked sequentially along the Z1 direction. The second positioning hole 23 may include a first through hole 231 and a second through hole 232 that are connected to each other. The first through hole 231 is formed on the support back plate 21, and the second through hole 232 is formed on the printed circuit board 22.

[0108] Figure 9 An exemplary structure of the first positioning hole 212 on the base 210 in this embodiment is shown, wherein, for ease of observation, Figure 9 Partial structure of guide post 900 is also shown. (Reference) Figure 9 In some embodiments of this application, the cross-sectional dimension of the first positioning hole 212 may be smaller than the cross-sectional dimension of the receiving groove 211. Alternatively, it can be understood that the projected area of ​​the first positioning hole 212 along the Z1 direction is smaller than the projected area of ​​the receiving groove 211 along the Z1 direction, and the projected area of ​​the first positioning hole 212 along the Z1 direction is located within the projected area of ​​the receiving groove 211 along the Z1 direction. In this way, it can be ensured that the receiving groove 211 has at least a partial bottom wall 2111 to limit the elastic member (not shown) and prevent the elastic member from dislodging from the receiving groove 211 through the first positioning hole 212.

[0109] In this embodiment, the cross-section of each component refers to the cross-section obtained by cutting perpendicular to the Z1 direction. Therefore, the cross-section of each component is perpendicular to the Z1 direction, which will not be described in detail below. For example, the cross-section of the receiving groove 211 is the cross-section obtained by cutting the receiving groove 211 perpendicular to the Z1 direction, so the cross-section of the receiving groove 211 is perpendicular to the Z1 direction; the cross-section of the first positioning hole 212 is the cross-section obtained by cutting the first positioning hole 212 perpendicular to the Z1 direction, so the cross-section of the first positioning hole 212 is perpendicular to the Z1 direction.

[0110] The cross-sectional dimension of the receiving groove 211 can refer to the maximum cross-sectional dimension of the receiving groove 211, and the cross-sectional dimension of the first positioning hole 212 can refer to the maximum cross-sectional dimension of the first positioning hole 212.

[0111] It is understandable that, based on the different cross-sectional shapes of the receiving groove 211 and the first positioning hole 212, their corresponding maximum cross-sectional dimensions are also different. For example, in Figure 9 In the embodiment shown, the cross-sectional shapes of the receiving groove 211 and the first positioning hole 212 can be circles of different sizes. The diameter D5 of the circular cross-section of the receiving groove 211 is the maximum cross-sectional size of the receiving groove 211, and the diameter D6 of the circular cross-section of the first positioning hole 212 is the maximum cross-sectional size of the first positioning hole 212. D6 is less than D5.

[0112] For example, in some other embodiments, the cross-sectional shape of the receiving groove 211 can be elliptical, and the length of the major axis of the ellipse can be the maximum cross-sectional dimension of the receiving groove 211. In yet another embodiment, the cross-sectional shape of the receiving groove 211 can be polygonal, and the length of the longest diagonal of the polygon can be the maximum cross-sectional dimension of the receiving groove 211. The maximum cross-sectional dimension of the first positioning hole 212 can be found in the description of the maximum cross-sectional dimension of the receiving groove 211, and will not be repeated here.

[0113] Continue reading Figure 9 In some embodiments of this application, the cross-sectional dimension of the first positioning hole 212 can be larger than the cross-sectional dimension of the guide post 900. Alternatively, it can be understood that the projection area of ​​the first positioning hole 212 along the Z1 direction is larger than the projection area of ​​the guide post 900 along the Z1 direction, and the projection area of ​​the first positioning hole 212 along the Z1 direction is located within the projection area of ​​the receiving groove 211 along the Z1 direction. In this way, the guide post 900 can be more smoothly inserted into the first positioning hole 212.

[0114] For example, in Figure 9 In the embodiment shown, the cross-sectional shapes of the first positioning hole 212 and the guide post 900 can be circles of different sizes. The diameter D6 of the circular cross-section of the first positioning hole 212 is the cross-sectional dimension of the first positioning hole 212, and the diameter D7 of the circular cross-section of the guide post 900 is the cross-sectional dimension of the guide post 900. D6 is greater than D7.

[0115] After introducing the electrical connection device 10 provided in this application, the exemplary assembly process of the electrical connection device 10 will be described below with reference to the accompanying drawings.

[0116] Figures 10A to 10C An assembly schematic diagram of the electrical connection device 10 in an embodiment of this application is shown. (Refer to...) Figure 10AFirst, the guide post 900 is inserted into the upper cover plate 300. Exemplarily, the guide post 900 can be fixedly connected to the upper cover plate 300 by riveting. Next, the structure formed by the upper cover plate 300 and the guide post 900 is inverted on the mounting platform (not shown), with the tail of the guide post 900 facing upwards, to facilitate subsequent assembly. Then, the circuit board assembly 100 is inserted into the guide post 900 along the Z1 direction. The guide post 900 serves a positioning function, ensuring precise alignment between the circuit board assembly 100 and the upper cover plate 300, preventing misalignment. Next, the elastic element 800 is fitted onto the guide post 900. In this embodiment, the elastic element 800 is a spring, and the inner diameter D8 of the spring can be larger than the diameter D7 of the guide post 900 to ensure that the spring can be fitted onto the guide post 900. The height of the spring in its free state is the dimension D9 of the spring along the Z1 direction in its free state; at this time, the spring is not subjected to external force.

[0117] refer to Figure 10B The connector 200 is inserted into the guide post 900 along the Z1 direction, with the receiving groove 211 of the connector 200 facing the elastic member 800. In this embodiment, the elastic member 800 is a spring, and the outer diameter D10 of the spring can be smaller than the diameter D5 of the receiving groove 211, and the diameter D7 of the guide post 900 is also smaller than the diameter D5 of the receiving groove 211, to ensure that the receiving groove 211 can accommodate the elastic member 800 and the guide post 900. The elastic member 800 can extend and retract within the receiving groove 211, and the guide post 900 can pass through the receiving groove 211. The groove depth of the receiving groove 211 is the dimension D0 of the receiving groove 211 along the Z1 direction.

[0118] refer to Figure 10C After assembling the electrical connection device 10, it can be flipped back to its normal state. At this time, the elastic element 800 is in a first compressed state, and the first pressure borne by the elastic element 800 can be the total weight of the circuit board assembly 100 and the upper cover plate 300. When the elastic element 800 is in the first compressed state, the upper boundary 810 of the elastic element 800 is located outside the receiving groove 211, and the dimension D1 of the elastic element 800 along the Z1 direction is greater than the height D2 of the first end 221 of the connecting terminal 220 protruding from the bottom wall of the receiving groove 211. The circuit board assembly 100 and the first end 221 of the connecting terminal 220 are spaced apart from each other. Among them, the dimension ΔD of the part of the elastic element 800 located outside the receiving groove 211 along the Z1 direction is D1-D2, and the elastic force F that the elastic element 800 can generate is F=ΔD×K, where K is the elastic coefficient of the elastic element 800. It can be understood that the elastic force F is greater than the total weight of the circuit board assembly 100 and the upper cover plate 300.

[0119] In the first compressed state of the elastic element 800, the elastic element 800 can buffer the vibration impact generated by the external force on the circuit board assembly 100, so that the circuit board assembly 100 will not excessively compress the first end 221 of the connection terminal 220 when it is subjected to vibration by the external force, or, so that the circuit board assembly 100 will cause a small degree of compression to the first end 221 of the connection terminal 220 when it is subjected to vibration by the external force, thereby ensuring that the first end 221 of the connection terminal 220 will not be excessively deformed and damaged, thus protecting the connection terminal 220, reducing the risk of bending or breaking of the connection terminal (or "pin collapse risk"), and effectively avoiding the problem of electrical connection failure.

[0120] Continue to refer to Figure 10C After assembling the electrical connection device 10, the printed circuit board 22 and the support back plate 21 of the circuit board assembly 20 can be sequentially inserted into the guide post 900 along the Z1 direction, and secured with screws (e.g., the aforementioned). Figure 8 In the illustrated embodiment, the screw 400 secures the electrical connection device 10 to the circuit board assembly 20. The locking force between the screw and the circuit board assembly 20 can compress the elastic member 800, causing the elastic member 800 to... Figure 10C The first compression state shown switches to Figure 5 The second compression state shown allows the first end 221 of the connection terminal 220 and the circuit board assembly 100 to stably abut against each other, thereby enabling signal transmission and ultimately obtaining... Figure 5 Electronic device 1 shown.

[0121] In the second compressed state of the elastic member 800, the elastic member 800 can be completely located within the receiving groove 211. Therefore, the elastic member 800 will not occupy additional space in the Z direction in the second compressed state. The elastic member 800 can avoid the movement generated by the circuit board assembly 100 during the elastic contact with the first end 221 of the connection terminal 220. Thus, the elastic member 800 will not restrict the spring height of the first end 221 of the connection terminal 220, thereby enabling a stable contact between the first end 221 of the connection terminal 220 and the circuit board assembly 100, thereby improving the overall connection stability and signal transmission effect of the electronic device 1.

[0122] The above description illustrates the implementation of this application through specific embodiments. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Although the description of this application is presented in conjunction with some embodiments, this does not mean that the features of this application are limited to these embodiments, and this application can also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this application, some specific details have been omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0123] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "outer", "inner", "circumferential", "radial", "axial", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0124] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "fit" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

Claims

1. An electrical connection device (10), characterized in that, The assembly includes a first circuit board assembly (100), a connector (200), and at least one elastic element (800), wherein the connector (200), the elastic element (800), and the first circuit board assembly (100) are stacked sequentially along a first direction, the first direction being parallel to the thickness direction of the first circuit board assembly (100), wherein: The connector (200) includes a base (210) and a connecting terminal (220). The connecting terminal (220) is disposed on the base (210). One end (221) of the connecting terminal (220) is located on the side of the base (210) facing the first circuit board assembly (100). At least one receiving groove (211) is formed on the surface of the base (210) facing the first circuit board assembly (100). The upper boundary (810) of the elastic element (800) elastically abuts against the first circuit board assembly (100), and the lower boundary (820) of the elastic element (800) is disposed in the receiving groove (211). The elastic element (800) has a first compression state and a second compression state. When the elastic element (800) is in the first compression state, the upper boundary (810) of the elastic element (800) is located outside the receiving groove (211), and the first circuit board assembly (100) and one end (221) of the connecting terminal (220) are spaced apart from each other. When the elastic element (800) is in the second compressed state, the elastic element (800) is located in the receiving groove (211), and the first circuit board assembly (100) elastically abuts against one end (221) of the connecting terminal (220); The deformation corresponding to the first compressed state is smaller than the deformation corresponding to the second compressed state.

2. The electrical connection device (10) according to claim 1, characterized in that, The number of elastic elements (800) and receiving grooves (211) is multiple, and the multiple elastic elements (800) correspond one-to-one with the multiple receiving grooves (211). The lower boundary (820) of each elastic element (800) is located in the corresponding receiving groove (211). A plurality of the elastic elements (800) are arranged around the connecting terminal (220).

3. The electrical connection device (10) according to claim 2, characterized in that, The number of elastic elements (800) is two, and along the length direction of the first circuit board assembly (100), the two elastic elements (800) are respectively disposed on opposite sides of the connecting terminal (220).

4. The electrical connection device (10) according to claim 1, characterized in that, The number of elastic elements (800) is one, and the elastic element (800) has a ring structure and is arranged around the connecting terminal (220).

5. The electrical connection device (10) according to claim 1, characterized in that, The electrical connection device (10) further includes a guide post (900) extending along the first direction, the guide post (900) passing through the first circuit board assembly (100) along the first direction and extending into the receiving groove (211), and the elastic element (800) being sleeved on the guide post.

6. The electrical connection device (10) according to claim 5, characterized in that, The base (210) has a first positioning hole (212) that communicates with the receiving groove (211), and the guide post (900) passes through the base (210) along the first direction via the receiving groove (211) and the first positioning hole (212).

7. The electrical connection device (10) according to claim 6, characterized in that, The cross-sectional dimension of the first positioning hole (212) is smaller than the cross-sectional dimension of the receiving groove (211), wherein the cross-section of the first positioning hole (212) and the cross-section of the receiving groove (211) are respectively perpendicular to the first direction.

8. The electrical connection device (10) according to claim 1, characterized in that, The elastic element (800) is a spring.

9. An electronic device (1), characterized in that, The device includes a second circuit board assembly (20) and an electrical connection device (10) according to any one of claims 1 to 8, wherein the second circuit board assembly (20) is located on the side of the connector (200) facing away from the first circuit board assembly (100) and is connected to the other end (222) of the connection terminal (220) of the connector (200), and the elastic member (800) is in a second compression state.

10. The electronic device (1) according to claim 9, characterized in that, The electrical connection device (10) further includes a guide post (900) extending along the first direction, the base (210) has a first positioning hole (212) communicating with the receiving groove (211), and the second circuit board assembly (20) has a second positioning hole (23). Along the first direction, the guide post (900) passes through the first circuit board assembly (100), passes through the base (210) via the receiving groove (211) and the first positioning hole (212), and extends into the second positioning hole (23), and the elastic element (800) is sleeved on the guide post (900).

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