Electric connection structure and test equipment

Abstract

An electrical connection structure and a test device, the electrical connection structure comprising: a main body board, the main body board being a multi-layer PCB; the power supply circuit is arranged on the surface of at least one side of the PCB; the connecting hole is formed in the PCB on the outermost layer of the main body board, and a connecting end is arranged at the end, corresponding to the outer surface of the main body board, of the inner circumferential surface of the connecting hole; the elastic piece is arranged on the inner side of the PCB, with the connecting hole, of the main body board and located at the position corresponding to the connecting hole; wherein the connecting hole and / or the elastic piece are / is electrically connected with the power supply circuit. According to the connection mode, the production of a plug female seat in the connection hole can be avoided, so that the mold opening cost can be saved, the processing difficulty is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated circuit testing, in particular to an electrical connection structure and testing equipment. Background Art

[0002] In the field of integrated circuit testing, the way to power boards in semiconductor testing equipment is mostly to obtain power by plugging a connector plug into a power busbar.

[0003] When processing the power busbar, a mold is required to process it. At the same time, since the processing of the power busbar is very difficult, the production cost is very high. In addition, in order to enable the power busbar to adapt to more usage scenarios, the size and specifications of the power supply lines on the power busbar are usually set high. Therefore, when the power supply current demand is small, the current redundancy generated when the power busbar is used to provide current is too high, resulting in waste. Therefore, there is an urgent need for an electrical connection structure that can reduce the difficulty of processing, reduce production costs, and reduce the redundancy of current. Utility Model Content

[0004] The present application provides an electrical connection structure and testing equipment, which can reduce processing difficulty, reduce production costs, and reduce current redundancy.

[0005] The first aspect of the present application provides an electrical connection structure, comprising: a main body board, which is a multi-layer PCB board; a power supply circuit, which is arranged on at least one side surface of the PCB board; a connection hole, which is arranged on a PCB board on the outermost layer of the main body board, and the inner circumferential surface of the connection hole is provided with a connection end corresponding to an end of the outer surface of the main body board; an elastic member, which is arranged on the inner side of the PCB board having the connection hole of the main body board, and is located at a position corresponding to the connection hole; wherein the connection hole and / or the elastic member are electrically connected to the power supply circuit.

[0006] With the above structure, by making the connection hole and / or the elastic member electrically connected to the power supply circuit, the plug of the board can be brought into contact with the connection end, so that the plug can be electrically connected to the power supply circuit through the connection hole and / or the elastic member. As a result, the structure for electrically connecting the plug to the power supply circuit can be made simpler, the difficulty of electrically connecting the plug to the power supply circuit can be reduced, and the production of the plug socket in the connection hole can be eliminated, thereby saving the cost of opening a mold, reducing the difficulty of processing, and reducing the production cost.

[0007] By using multi-layer PCB boards to make the main board, the main board can be easily processed according to the needs, thereby improving the customization of the main board. In addition, by using multi-layer PCB boards to make the main board, no mold is required during the processing, thereby saving mold opening costs, reducing processing difficulty, and reducing production costs.

[0008] At the same time, by using a multi-layer PCB board to make the main board, the power supply circuit can be set on the PCB board by copper plating or routing (wire connection), which can reduce the processing cost of setting the power supply circuit. Moreover, when setting the power supply circuit, the width of the copper plating of the power supply circuit can be set according to the current requirements, thereby reducing the redundancy of the current, avoiding waste, and further reducing the production cost of the electrical connection structure.

[0009] In addition, by arranging an elastic member at a position corresponding to the connection hole, the elastic member can be driven to deform when the plug abuts against the connection end, and the electrical connection effect of the plug can be improved by the elastic force generated by the elastic member.

[0010] As a possible implementation of the first aspect, the electrical connection structure also includes: a pressure sensor, which is arranged on the main plate and located on a side of the elastic member away from the connecting hole; wherein, when the plug abuts against the connecting end, the elastic member squeezes the pressure sensor.

[0011] By adopting the above structure and arranging an elastic member and a pressure sensor, when the plug abuts against the connecting end of the connecting hole, the elastic member can be pushed to squeeze the pressure sensor, so that it can be determined whether the plug and the connecting end of the connecting hole are completely abutted based on the pressure changes detected by the pressure sensor.

[0012] As a possible implementation manner in the first aspect, the connecting end is in a flared shape.

[0013] With the above structure, by making the connection end at one end of the connection hole flared, the plug can be guided when the plug of the board and the connection end abut to make electrical connection, so as to reduce the difficulty of abutting the plug and the connection end, and improve the accuracy of abutting the plug and the connection end. The contact area between the plug and the connection end can also be increased, thereby improving the electrical connection effect.

[0014] As a possible implementation method of the first aspect, the main body board includes: a first PCB board, the power supply circuit is arranged on at least one side surface of the two side surfaces of the first PCB board, and the connection hole is arranged on the first PCB board; a second PCB board, the second PCB board is arranged on the first PCB board; wherein an accommodating space is arranged between the first PCB board and the second PCB board at a position corresponding to the connecting hole, and the elastic member and the pressure sensor are arranged in the accommodating space.

[0015] With the above structure, by providing an accommodation space between the first PCB board and the second PCB board, the elastic member and the pressure sensor can be conveniently installed, thereby reducing the difficulty of processing the electrical connection structure and reducing the processing cost.

[0016] As a possible implementation method of the first aspect, the second PCB board is provided with an inclined surface on a surface facing the first PCB board, and the inclined surface is arranged at a position corresponding to the connecting hole, inclined in a direction away from the first PCB board, and forms the accommodating space between the second PCB board and the first PCB board.

[0017] As a possible implementation of the first aspect, an inclined surface is provided on the second PCB board to form an accommodating space between the first PCB board and the second PCB board, thereby reducing the difficulty of processing the accommodating space and thus reducing the processing cost.

[0018] As a possible implementation of the first aspect, the elastic member is in a sheet shape and is fixed on the first PCB board. The pressure sensor is arranged on the inclined surface. The middle of the elastic member protrudes toward the second PCB board and abuts against the pressure sensor.

[0019] With the above structure, when the plug abuts against the connection end, the first PCB board will be pushed to bend and deform toward the second PCB board. By using a sheet-like elastic member fixed on the first PCB board, the middle of the elastic member is raised toward the second PCB board, so that after the first PCB board is bent and deformed to compress the elastic member, the spring member can provide the first PCB board with a force to restore its original shape while the pressure sensor detects the pressure provided by the spring member. At the same time, after the plug is electrically connected to the connection end and fixedly connected to the main board, the force provided by the spring member pushes the first PCB board to recover, so that the abutment between the plug and the connection end can be tighter, thereby improving the electrical connection effect.

[0020] As a possible implementation method in the first aspect, the elastic member includes: a fixing portion, which is installed on the main body plate and electrically connected to the power supply circuit, and the fixing portion has a through-hole-shaped extension hole arranged along the direction of the connecting hole; a contact portion, which is arranged in the extension hole and can move along the direction of the extension hole; and a spring, which is arranged in the extension hole and pushes one end of the contact portion to extend to the corresponding position of the connecting end in the connecting hole.

[0021] By adopting the above structure, a specific structure of an elastic member is provided, in which one end of the contact part is pushed by a spring to extend to the corresponding position of the connection end in the connection hole, so that when the plug abuts against the connection end of the connection hole, the contact part abuts against the plug, so that the contact part and the plug are electrically connected, thereby improving the electrical connection effect of the plug. The contact part and the plug can also be tightly connected by the thrust of the spring, thereby further improving the electrical connection effect of the plug. In addition, it is also convenient for the plug to push the contact part to move in the extension hole, so that the other end of the contact part abuts against the pressure sensor, thereby detecting pressure changes.

[0022] As a possible implementation of the first aspect, the main body board includes a first PCB board and a second PCB board that are bonded to each other, the power supply circuit is arranged on at least one surface of the first PCB board and the second PCB board; the second PCB board is single-layer or multi-layer; the connecting hole is arranged on the first PCB board; the second PCB board is provided with a first mounting hole at a position corresponding to the connecting hole, the fixing part is installed in the first mounting hole, and the pressure sensor is arranged on the fixing part.

[0023] By adopting the above structure, the main body board is formed by fitting the first PCB board and the second PCB board together, so that the processing difficulty of the main body board can be reduced and the processing cost can be reduced. In addition, by setting the first mounting hole on the second PCB board, the fixing part is installed in the first mounting hole, so that the installation of the elastic member can be facilitated. In this way, the processing difficulty can be further reduced and the processing cost can be reduced. At the same time, by setting the power supply circuit on at least one side of the surface of the first PCB board and the second PCB board, the area for setting the power supply circuit can be increased. For example, the range of current adapted to the power supply circuit can be increased by increasing the width of the copper plating, thereby increasing the adaptation range of the electrical connection structure to the current.

[0024] In addition, by setting up a multi-layer second PCB board, the area for setting up the power supply circuit can be increased to increase the current range adapted by the power supply circuit. For example, the width of the copper plating can be increased, thereby increasing the adaptation range of the electrical connection structure to the current.

[0025] As a possible implementation method of the first aspect, the electrical connection structure is also connected to a controller, and the controller is electrically connected to the pressure sensor and the power supply circuit. When the pressure value detected by the pressure sensor reaches a predetermined value, the controller controls the power supply circuit to supply power. When the pressure value detected by the pressure sensor is lower than the predetermined value, the controller controls the power supply circuit to cut off power.

[0026] With the above structure, the controller can control the power supply circuit to supply or cut off the power according to the pressure value detected by the pressure sensor, so that the power can be supplied after the plug is confirmed to be connected to the connection end to avoid damage to the device. The power can also be cut off after the plug is confirmed to be separated from the connection end, so as to avoid the risk of accidental short circuit of the electrical connection structure.

[0027] As a possible implementation of the first aspect, the power supply circuit includes a first circuit and a second circuit, a plurality of connection holes are provided, a portion of the connection holes are electrically connected to the first circuit, and another portion of the connection holes are electrically connected to the second circuit.

[0028] By adopting the above structure, by setting the first circuit and the second circuit and electrically connecting them to some of the connection holes respectively, the first circuit, the second circuit and the corresponding connection holes can be electrically connected to the positive electrode and the negative electrode of the power supply respectively. Thus, the use of the electrical connection structure can be facilitated.

[0029] A second aspect of the present application provides a test device, comprising a test board and the electrical connection structure described in any one of the first aspects of the present application, wherein the electrical connection structure is adapted to be electrically connected to the test board.

[0030] These and other aspects of the present invention will become more apparent from the following description of the embodiment(s). BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The following further illustrates the various features of the present invention and the relationship between the various features with reference to the accompanying drawings. The accompanying drawings are all exemplary, and some features are not shown in actual proportion. Some drawings may omit the features that are conventional in the field involved in the present application and are not necessary for the present application, or additionally show features that are not necessary for the present application. The combination of the various features shown in the accompanying drawings is not intended to limit the present application. In addition, throughout this specification, the same figure numerals refer to the same content. The specific description of the drawings is as follows:

[0032] Figure 1 This is one of the side structural schematic diagrams of the electrical connection structure in Example 1;

[0033] Figure 2 This is the second side structural diagram of the electrical connection structure in Example 1;

[0034] Figure 3 for Figure 1 A schematic diagram of the orthographic projection structure of the first PCB board and the second PCB board;

[0035] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of the elastic member;

[0036] Figure 5 This is a schematic diagram of electrical connections in Example 1;

[0037] Figure 6 is a side structural diagram of the electrical connection structure in Example 2;

[0038] Figure 7 It is a schematic diagram of the three-dimensional structure of the electrical connection structure in Example 2 in a separated state of the first PCB board;

[0039] Figure 8 is a schematic diagram of the side structure of the electrical connection structure in Example 3;

[0040] Fig. 9 It is a schematic diagram of the three-dimensional structure of the electrical connection structure in Example 3 in which the first PCB board and the second PCB board are separated.

[0041] Description of Reference Numerals

[0042] 10 electrical connection structure; 100 main board; 110 first PCB board; 120 second PCB board; 121 inclined surface; 122 first mounting hole; 200 power supply circuit; 210 first circuit; 220 second circuit; 300 connection hole; 310 connection end; 400 elastic member; 410 fixing part; 411 extension hole; 420 contact part; 430 main body; 440 connection part; 500 pressure sensor; 20 plug; 30 controller. DETAILED DESCRIPTION

[0043] The words "first, second, third, etc." or module A, module B, module C and other similar terms in the specification and claims are only used to distinguish similar objects and do not represent a specific ordering of the objects. It is understandable that the specific order or sequence can be interchanged where permitted so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0044] In the following description, the numbers representing the steps, such as S110, S120, etc., do not necessarily mean that the steps must be executed in this manner. If permitted, the order of the previous and next steps can be interchanged, or they can be executed simultaneously.

[0045] The term "comprising" as used in the description and claims should not be interpreted as being limited to what is listed thereafter; it does not exclude other elements or steps. Therefore, it should be interpreted as specifying the presence of the features, integers, steps or components mentioned, but does not exclude the presence or addition of one or more other features, integers, steps or components and groups thereof. Therefore, the expression "a device comprising means A and B" should not be limited to a device consisting of components A and B only.

[0046] References to "one embodiment" or "an embodiment" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present invention. Therefore, the phrases "in one embodiment" or "in an embodiment" appearing in various places in this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. In addition, in one or more embodiments, the particular features, structures, or characteristics can be combined in any appropriate manner, as will be apparent to one of ordinary skill in the art from this disclosure.

[0047] Below, in conjunction with the accompanying drawings, possible embodiments of the electrical connection structure 10 in the present application are exemplarily described.

[0048] like Figure 1-Figure 3 , Figure 6-Figure 9 As shown, the electrical connection structure 10 in the present application includes a main body plate 100, a power supply circuit 200, a connection hole 300 and an elastic member 400, wherein the main body plate 100 is a multi-layer PCB board, and the power supply circuit 200 is arranged on at least one side surface of the PCB board. The connection hole 300 is arranged on a PCB board of the outermost layer of the main body plate 100, and the inner peripheral surface of the connection hole 300 is provided with a connection end 310 at one end corresponding to the outer surface of the main body plate 100. The elastic member 400 is arranged at the inner side position of the PCB board of the main body plate 100 having the connection hole 300, and is located at the corresponding position of the connection hole 300. Among them, the connection hole 300 and / or the elastic member 400 are electrically connected to the power supply circuit 200.

[0049] As described above, by electrically connecting the connection hole 300 and / or the elastic member 400 to the power supply circuit 200, the plug 20 of the board can be brought into contact with the connection end 310, so that the plug 20 can be electrically connected to the power supply circuit 200 through the connection hole 300 and / or the elastic member 400. As a result, the structure for electrically connecting the plug 20 to the power supply circuit 200 can be made simpler, the difficulty of electrically connecting the plug 20 to the power supply circuit 200 can be reduced, and the production of the plug socket in the connection hole 300 can be eliminated, thereby saving the cost of opening a mold, reducing the difficulty of processing, and reducing the production cost.

[0050] By using a multi-layer PCB board to make the main body board 100, the main body board 100 can be easily processed according to the requirements, thereby improving the customization degree of the main body board 100. In addition, by using a multi-layer PCB board to make the main body board 100, no mold is required during the processing, thereby saving the cost of opening the mold, reducing the processing difficulty, and reducing the production cost.

[0051] At the same time, by using a multi-layer PCB board to make the main board 100, the power supply circuit 200 can be set on the PCB board by copper plating or routing (wire connection), which can reduce the processing cost of setting the power supply circuit 200. Moreover, when setting the power supply circuit 200, the width of the copper plating of the power supply circuit 200 can be set according to the current requirement, thereby reducing the redundancy of the current, avoiding waste, and further reducing the production cost of the electrical connection structure 10.

[0052] In addition, by arranging the elastic member 400 at the corresponding position of the connection hole 300 , the elastic member 400 can be driven to deform when the plug 20 abuts against the connection end 310 , and the elastic force generated by the elastic member 400 can improve the electrical connection effect of the plug 20 .

[0053] In some embodiments, Figure 1-Figure 3 , Figure 6-Figure 9 As shown, the electrical connection structure 10 also includes a pressure sensor 500. The pressure sensor 500 is arranged on the main plate 100, and is located at a position on the side of the elastic member 400 away from the connection hole 300. When the plug 20 abuts against the connection end 310, the elastic member 400 squeezes the pressure sensor 500. Therefore, by arranging the elastic member 400 and the pressure sensor 500, when the plug 20 abuts against the connection end 310 of the connection hole 300 for electrical connection, the elastic member 400 can be pushed to squeeze the pressure sensor 500, so that it can be determined whether the plug 20 and the connection end 310 of the connection hole 300 are completely abutted according to the pressure change detected by the pressure sensor 500.

[0054] In some embodiments, Figure 1 , Figure 2 , Figure 6-Figure 9 As shown, the connection end 310 is in a flared shape. By making the connection end 310 at one end of the connection hole 300 in a flared shape, the plug 20 can be guided when the plug 20 of the board and the connection end 310 abut against each other for electrical connection, so as to reduce the difficulty of abutting the plug 20 and the connection end 310 and improve the accuracy of abutting the plug 20 and the connection end 310. The contact area between the plug 20 and the connection end 310 can also be increased, thereby improving the electrical connection effect.

[0055] In some embodiments, Figure 1 , Figure 2As shown, the main body board 100 includes a first PCB board 110 and a second PCB board 120. The power supply circuit 200 is arranged on at least one of the two side surfaces of the first PCB board 110, and the connection hole 300 is arranged on the first PCB board 110. The second PCB board 120 is arranged on the first PCB board 110. An accommodating space A is arranged between the first PCB board 110 and the second PCB board 120 at a position corresponding to the connection hole 300, and the elastic member 400 and the pressure sensor 500 are arranged in the accommodating space A. Therefore, by setting the accommodating space A between the first PCB board 110 and the second PCB board 120, the elastic member 400 and the pressure sensor 500 can be conveniently installed. Therefore, the processing difficulty of the electrical connection structure 10 can be reduced, and the processing cost can be reduced.

[0056] In some embodiments, Figure 1 , Figure 2 As shown, the second PCB board 120 is provided with an inclined surface 121 on the side facing the first PCB board 110. The inclined surface 121 is provided at a position corresponding to the connection hole 300, and is inclined in a direction away from the first PCB board 110, so as to form an accommodation space A between the first PCB board 110 and the second PCB board 120. Therefore, by providing the inclined surface 121 on the second PCB board 120, the accommodation space A is formed between the first PCB board 110 and the second PCB board 120, so that the processing difficulty of the accommodation space A can be reduced, thereby reducing the processing cost.

[0057] In some embodiments, Figure 1 , Figure 2 As shown, the connection hole 300 is arranged at the edge of the first PCB board 110. By arranging the connection hole 300 at the edge of the first PCB board 110, the middle position of the first PCB board 110 can be avoided, so that the power supply circuit 200 is conveniently arranged on the first PCB board 110. At the same time, by arranging the connection hole 300 at the edge of the first PCB board 110, the inclined surface 121 is correspondingly arranged at the edge of the second PCB board 120. Therefore, the second PCB board 120 can be conveniently processed, thereby reducing the processing difficulty and processing cost.

[0058] In some embodiments, Figure 1-Figure 4As shown, the elastic member 400 is in the form of a sheet and fixed on the first PCB board 110. The pressure sensor 500 is arranged on the inclined surface 121. The middle of the elastic member 400 protrudes toward the second PCB board 120 and abuts against the pressure sensor 500. Therefore, when the plug 20 abuts against the connection end 310 of the connection hole 300 for electrical connection, the first PCB board 110 will be pushed to bend and deform toward the second PCB board 120. By using the sheet-shaped elastic member 400 fixed on the first PCB board 110, so that the middle of the elastic member 400 protrudes toward the second PCB board 120, after the first PCB board 110 is bent and deformed and the elastic member 400 is deformed, the pressure sensor 500 can detect the pressure provided by the spring member, and the spring member can provide the first PCB board 110 with a force to restore its original shape. Therefore, the connection end 310 can be pushed to be in close contact with the plug, so that the electrical connection effect between the plug 20 and the connection end 310 of the connection hole 300 can be improved.

[0059] In some embodiments, Figure 6-Figure 9 As shown, the elastic member 400 includes a fixing portion 410, a contact portion 420 and a spring. The fixing portion 410 is mounted on the main plate 100 and electrically connected to the power supply circuit 200, and the fixing portion 410 has a through-hole-shaped extension hole 411 arranged along the direction of the connection hole 300. The contact portion 420 is arranged in the extension hole 411 and can move along the direction of the extension hole 411. The spring is arranged in the extension hole 411, pushing one end of the contact portion 420 to extend to the corresponding position of the connection end 310 in the connection hole 300. Thus, a specific structure of the elastic member 400 is provided, and the spring pushes one end of the contact portion 420 to extend to the corresponding position of the connection end 310 in the connection hole 300, so that when the plug 20 abuts against the connection end 310 of the connection hole 300, the contact portion 420 abuts against the plug 20, so that the contact portion 420 and the plug 20 are electrically connected, thereby improving the electrical connection effect of the plug 20. The contact part 420 can also be tightly connected to the plug 20 by the thrust of the spring, thereby further improving the electrical connection effect of the plug 20. In addition, the plug 20 can also facilitate the contact part 420 to move in the extension hole 411, so that the other end of the contact part 420 abuts against the pressure sensor 500, thereby detecting pressure changes.

[0060] In some embodiments, Figure 6 , Figure 7As shown, the main body 100 includes a first PCB board 110 and a second PCB board 120 that are attached to each other, and the power supply circuit 200 is arranged on at least one side of the surfaces of the first PCB board 110 and the second PCB board 120. The connection hole 300 is arranged on the first PCB board 110. The second PCB board 120 is provided with a first mounting hole 122 at a position corresponding to the connection hole 300, and the fixing portion 410 of the elastic member 400 is installed in the first mounting hole 122, and the pressure sensor 500 is arranged on the fixing portion 410. Thus, the main body 100 is formed by attaching the first PCB board 110 and the second PCB board 120, so that the processing difficulty of the main body 100 can be reduced and the processing cost can be reduced. In addition, by providing the first mounting hole 122 on the second PCB board 120, the fixing portion 410 is installed in the first mounting hole 122, so that the installation of the elastic member 400 can be facilitated. Thus, the processing difficulty can be further reduced and the processing cost can be reduced. At the same time, by setting the power supply circuit 200 on at least one side of the surface of the first PCB board 110 and the second PCB board 120, the area for setting the power supply circuit 200 can be increased. For example, the range of current adapted by the power supply circuit 200 can be increased by increasing the width of the copper plating, thereby increasing the adaptation range of the electrical connection structure 10 to the current.

[0061] In some embodiments, Figure 8 , Fig. 9 As shown, the second PCB board 120 is provided with multiple layers, for example, Figure 8 , Fig. 9 The multi-layer second PCB board 120 is located on the same side of the first PCB board 110. Therefore, by providing the multi-layer second PCB board 120, the area for providing the power supply circuit 200 can be increased. For example, the current range adapted by the power supply circuit 200 can be increased by increasing the width of the copper plating, thereby increasing the adaptation range of the electrical connection structure to the current.

[0062] In some embodiments, Figure 5 As shown, the electrical connection structure 10 is also connected to the controller 30, and the controller 30 is electrically connected to the pressure sensor 500 and the power supply circuit 200. When the pressure value detected by the pressure sensor 500 reaches a predetermined value, the controller 30 controls the power supply circuit 200 to supply power, and when the pressure value detected by the pressure sensor 500 is lower than the predetermined value, the controller 30 controls the power supply circuit 200 to cut off the power. Thus, the controller 30 can control the power supply circuit 200 to supply power or cut off the power according to the pressure value detected by the pressure sensor 500, so that the power can be supplied after it is determined that the plug 20 is connected to the connection terminal 310, so as to avoid damage to the device. It is also possible to cut off the power after it is determined that the plug 20 is separated from the connection terminal 310, so as to avoid the danger of an accidental short circuit in the electrical connection structure 10.

[0063] In some embodiments, the controller 30 may also control the power supply circuit 200 to supply power when the pressure sensor 500 detects pressure, and control the power supply circuit 200 to cut off power when the pressure sensor 500 does not detect pressure.

[0064] In some embodiments, Figure 3 As shown, the power supply circuit 200 includes a first circuit 210 and a second circuit 220, and a plurality of connection holes 300 are provided, a part of the connection holes 300 is electrically connected to the first circuit 210, and another part of the connection holes 300 is electrically connected to the second circuit 220. Thus, by providing the first circuit 210 and the second circuit 220, and electrically connecting them to part of the connection holes 300 respectively, the first circuit 210, the second circuit 220 and the corresponding connection holes 300 can be electrically connected to the positive electrode and the negative electrode of the power supply respectively. Thus, the use of the electrical connection structure 10 can be facilitated. In some embodiments, the first circuit 210 and the second circuit 220 can be provided on the same side surface of the PCB boards 110 and 120, or can be provided on the two side surfaces of the PCB boards 110 and 120 respectively.

[0065] The present application also provides a testing device, including a testing board and any possible embodiment of the electrical connection structure 10 described in the present application, wherein the electrical connection structure 10 is adapted to be electrically connected to the testing board.

[0066] The above content, in combination with the accompanying drawings, exemplarily describes possible embodiments of the electrical connection structure 10 and the test equipment in the present application. Below, in combination with the accompanying drawings and multiple specific embodiments, the specific structure of the electrical connection structure 10 in the present application is described in detail.

[0067] Example 1

[0068] Figure 1 is one of the side structural schematic diagrams of the electrical connection structure 10 in Embodiment 1, showing a state when the electrical connection structure 10 is not connected to the plug 20; Figure 2 The second schematic diagram of the side structure of the electrical connection structure 10 in the first embodiment shows the state when the electrical connection structure 10 is connected to the plug 20; Figure 3 for Figure 1 FIG. 1 is a schematic diagram of the orthographic projection structure of the first PCB board 110 and the second PCB board 120. Figure 1-Figure 3As shown, the electrical connection structure 10 in Example 1 includes a main board 100, a power supply circuit 200, a connection hole 300, an elastic member 400 and a pressure sensor 500. The power supply circuit 200 is arranged on the main board 100 by copper plating. The connection hole 300 is arranged on the main board 100, and copper plating is arranged on the inner circumference of the connection hole 300. The copper plating in the connection hole 300 is electrically connected to the power supply circuit 200. Therefore, the plug 20 on the board can be connected to the connection hole 300, thereby realizing electrical connection with the power supply circuit 200 to supply power to the board. Figure 1-Figure 3 As shown, the main body board 100 includes a first PCB board 110 and a second PCB board 120 which are rectangular plates as a whole. The connection holes 300 and the power supply circuit 200 are arranged on the first PCB board 110. Specifically, a plurality of connection holes 300 are arranged along the edge of a longer side close to the first PCB board 110. The power supply circuit 200 includes a first circuit 210 and a second circuit 220. The first circuit 210 is connected to the positive pole of the power supply as the positive pole power supply circuit 200, and the second circuit 220 is connected to the negative pole of the power supply as the negative pole power supply circuit 200. The first circuit 210 and the second circuit 220 are respectively arranged on the two side surfaces of the first PCB board 110, and are respectively connected to half of the number of connection holes 300. The connection holes 300 corresponding to the first circuit 210 and the connection holes 300 corresponding to the second circuit 220 are arranged in an interlaced manner, so as to facilitate the formation of a loop between the positive and negative poles.

[0069] like Figure 1 , Figure 2 As shown, the connection hole 300 is provided with a connection end 310 at one end away from the second PCB board 120, and the connection end 310 is flared, so that the connection hole 300 is in the shape of a countersunk hole. Therefore, when the plug 20 on the board can be electrically connected to the power supply circuit 200 by abutting against the connection end 310, it can be guided by the connection end 310, and the contact area between the connection end 310 and the plug 20 can be increased, thereby improving the electrical connection effect with the plug 20.

[0070] Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the elastic member 400. Figure 1 , Figure 2 , Figure 4As shown, the elastic member 400 is in the form of a sheet, and includes a main body 430 and four connecting parts 440 evenly arranged around the main body 430. The main body 430 is convex in a spherical shape, and the connecting parts 440 extend outward from the edge of the main body 430. The elastic member 400 can be fixed on the surface of the first PCB board 110 facing the second PCB board 120 through the connecting parts 440, and is arranged one-to-one with the connecting holes 300, so that the main body 430 protrudes in the direction away from the connecting holes 300. Specifically, the connecting parts 440 of the elastic member 400 can be fixed on the first PCB board 110 by means of snapping, pasting, etc., or fixed on the copper plating in the connecting hole 300 by welding, and there is no limitation to this.

[0071] like Figure 1 , Figure 2 As shown, the shape of the second PCB board 120 is the same as that of the first PCB board 110, and the second PCB board 120 is fixed to the first PCB board 110 by bolts or bonding. When viewed in a direction perpendicular to the surfaces of the first PCB board 110 and the second PCB board 120, the second PCB board 120 overlaps with the first PCB board 110. The second PCB board 120 is provided with an inclined surface 121 on the surface of the side facing the first PCB board 110, and the inclined surface 121 is located at a position corresponding to the connecting hole 300 and is arranged along the extension direction of the first PCB board 110, so that an accommodating space A is formed between the first PCB board 110 and the second PCB board 120, so that the elastic member 400 is located in the accommodating space A, so as to facilitate the installation of the elastic member 400.

[0072] like Figure 1 , Figure 2 As shown, the pressure sensor 500 is arranged on the inclined surface 121, and is arranged one-to-one with the elastic member 400 and the connecting hole 300, so that the elastic member 400 abuts against the pressure sensor 500. Therefore, when the board is fixed on the main board 100 by bolt fixing or snap connection, so that the plug 20 abuts against the connecting end 310, in order to make the plug 20 and the connecting end 310 tightly connected, the first PCB board 110 will be bent and deformed toward the second PCB board 120 under the push of the plug 20, so that the elastic member 400 squeezes the pressure sensor 500. Therefore, it can be determined whether the abutment between the plug 20 and the connecting end 310 is complete according to the pressure change detected by the pressure sensor 500. In addition, after deformation, the elastic member 400 will provide a thrust to the first PCB board 110 away from the second PCB board 120, that is, push the connecting hole 300 on the first PCB board 110 to move toward the board, so that the plug 20 is tightly connected with the connecting end 310. Thus, the electrical connection effect between the plug 20 and the connection end 310 of the connection hole 300 can be improved.

[0073] Figure 5Schematic diagram of electrical connection in Example 1. Figure 5 As shown, the electrical connection structure 10 is also connected to the controller 30. The controller 30 is electrically connected to the pressure sensor 500 and can receive the pressure data detected by the pressure sensor 500. The controller 30 is electrically connected to the power supply circuit 200. Specifically, the controller 30 is electrically connected to the first circuit 210 and the second circuit 220 respectively. When the pressure sensor 500 detects that the pressure data exceeds the first threshold, the controller 30 determines that the plug 20 is completely abutted against the connection end 310 of the connection hole 300, and the electrical connection with the power supply circuit 200 is completed. The controller 30 can control the first circuit 210 and the second circuit 220 to be connected to the power supply, thereby supplying power to the board. When the pressure sensor 500 detects that the pressure data is less than the second threshold, the controller 30 determines that the plug 20 is separated from the connection end 310 of the connection hole 300, and the electrical connection with the power supply circuit 200 is disconnected. The controller 30 can control the first circuit 210 and the second circuit 220 to be disconnected from the power supply, thereby stopping supplying power to the board.

[0074] Example 2

[0075] Figure 6 is a schematic diagram of the side structure of the electrical connection structure 10 in Example 2; Figure 7 FIG. 1 is a schematic diagram of a three-dimensional structure of the electrical connection structure 10 in the embodiment 2 in a separated state of the first PCB board 110. Figure 6 , Figure 7 As shown, in embodiment 2, an electrical connection structure 10 different from that in embodiment 1 is provided. Figure 6 , Figure 7 The differences between the electrical connection structure 10 in Embodiment 2 and the electrical connection structure 10 in Embodiment 1 are described in detail. For the parts of the electrical connection structure 10 in Embodiment 2 not mentioned, reference can be made to the description of the relevant contents in Embodiment 1, and no further description is given here.

[0076] like Figure 6 , Figure 7 As shown, the first PCB board 110 and the second PCB board 120 in Example 2 are completely fitted together, and the second PCB board 120 is provided with a first mounting hole 122 at a position corresponding to the connecting hole 300. The axis of the first mounting hole 122 coincides with the axis of the connecting hole 300, so that the first mounting hole 122 is connected to the connecting hole 300.

[0077] like Figure 6 , Figure 7As shown, the elastic member 400 is a columnar elastic member 400, which is fixedly installed in the first mounting hole 122 by welding or the like. Specifically, the elastic member 400 includes a fixing portion 410, a contact portion 420 and a spring (not shown). Among them, the fixing portion 410 is cylindrical, adapted to the first mounting hole 122, and fixedly installed in the first mounting hole 122. The fixing portion 410 has a circular through-hole-shaped extension hole 411 arranged along the direction of the first mounting hole 122. The contact portion 420 is cylindrical, arranged in the extension hole 411, and can move along the direction of the extension hole 411. The spring is arranged in the extension hole 411, pushing the contact portion 420 toward one end of the first PCB board 110 to be exposed from the extension hole 411, and extending to the corresponding position of the connection end 310 in the connection hole 300.

[0078] The pressure sensor (not shown) is mounted on the fixing portion 410. When the plug 20 abuts against the connecting end 310 of the connecting hole 300, it can push the contact portion 420 to move in the extension hole 411, so that the other end of the contact portion 420 abuts against the pressure sensor, thereby detecting pressure changes.

[0079] The power supply circuit 200 includes a first circuit 210 and a second circuit 220, and the first circuit 210 and the second circuit 220 are arranged on at least one of the two side surfaces of the second PCB board 120 by copper plating. Specifically, the first circuit 210 and the second circuit 220 can be arranged on the same side surface, or the first circuit 210 and the second circuit 220 can also be arranged on different side surfaces of the second PCB board 120, respectively.

[0080] like Figure 6 , Figure 7 As shown, a plurality of first mounting holes 122 are provided corresponding to the connection holes 300, and are arranged along the extension direction of the main body plate 100. The inner surface of the first mounting hole 122 is copper-plated, and the first circuit 210 and the second circuit 220 are respectively connected to half of the first mounting holes 122. The first mounting holes 122 corresponding to the first circuit 210 and the first mounting holes 122 corresponding to the second circuit 220 are arranged in an interlaced manner, so as to facilitate the formation of a loop between the positive and negative electrodes. The elastic member 400 is made of a conductive material, and when the plug 20 abuts against the connection end 310 of the connection hole 300, it will abut against the contact portion 420 extending into the connection hole 300 to the position of the connection end 310, thereby achieving electrical connection with the power supply circuit 200. At the same time, the contact portion 420 can also maintain a close contact state with the plug 20 under the push of the spring, so as to improve the electrical connection effect between the plug 20 and the contact portion 420.

[0081] Furthermore, after the first PCB board 110 and the second PCB board 120 are completely attached, the copper in the first mounting hole 122 can also be connected to the copper in the connection hole 300. Therefore, after the plug 20 abuts against the connection end 310 of the connection hole 300, the plug 20 can be electrically connected to the power supply circuit 200 through the connection hole, thereby improving the electrical connection effect between the plug 20 and the power supply circuit 200. At this time, the power supply circuit can be set on the first PCB board 110, or can also be set on the second PCB board 120.

[0082] Example 3

[0083] Figure 8 is a schematic diagram of the side structure of the electrical connection structure 10 in Example 3; Fig. 9 FIG. 1 is a schematic diagram of a three-dimensional structure of the electrical connection structure 10 in Embodiment 3 in which the first PCB board 110 and the second PCB board 120 are separated. Figure 8 , Fig. 9 As shown, in embodiment 3, an electrical connection structure 10 different from that in embodiment 2 is provided. Figure 8 , Fig. 9 The differences between the electrical connection structure 10 in Example 3 and the electrical connection structure 10 in Example 2 are described in detail. For the parts of the electrical connection structure 10 not mentioned in Example 3, reference can be made to the description of the relevant contents in Example 2, and no further description is given here.

[0084] like Figure 8 , Fig. 9 As shown, the second PCB board 120 is provided with two layers, and the first PCB board 110 and the two layers of the second PCB boards 120 are completely fitted and stacked. The two layers of the second PCB boards 120 are located on the same side of the first PCB board 110, and the first mounting holes 122 on the two layers of the second PCB boards are coaxially arranged, and the shape and size of the first mounting holes 122 are adapted to the shape and size of the fixing part 410. The pressure sensor (not shown) is installed on the fixing part 410, and when the contact part 420 of the elastic member 400 moves under the push of the plug 20, the contact part 420 is facing one end of the pressure sensor and abuts against the pressure sensor, so that the pressure data can be detected.

[0085] Furthermore, by setting two layers of the second PCB board 120, the number of sides for setting the first circuit 210 and the second circuit 220 can be increased, so that when copper plating the first circuit 210 and the second circuit 220, the width of the copper plating can be set more flexibly and conveniently, thereby improving the adaptability range of the electrical connection structure 10 to different current sizes.

[0086] Specifically, as an example, the first circuit 210 can be arranged on both side surfaces of one layer of the second PCB board 120, and the second circuit 220 can be arranged on both side surfaces of another layer of the second PCB board 120. The surfaces of the first circuit 210 and the second circuit 220 are coated with an insulating layer, which can provide insulation protection for the first circuit 210 and the second circuit 220, and can also prevent a short circuit from occurring between the first circuit 210 and the second circuit 220 arranged on the two side surfaces where the first PCB board 110 and the second PCB board 120 are attached.

[0087] Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present application is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, all of which belong to the scope of protection of the present invention.

Claims

1. An electrical connection structure, characterized in that: include: A main body board, wherein the main body board is a multi-layer PCB board; A power supply circuit, wherein the power supply circuit is arranged on at least one side surface of the PCB board; A connection hole, wherein the connection hole is arranged on a PCB board on the outermost layer of the main body board, and an inner peripheral surface of the connection hole is provided with a connection end at one end corresponding to the outer surface of the main body board; An elastic member, the elastic member is arranged on the inner side of the PCB board having the connecting hole of the main body plate, and is located at a position corresponding to the connecting hole; Wherein, the connecting hole and / or the elastic member are electrically connected to the power supply circuit.

2. The electrical connection structure according to claim 1, characterized in that: Also includes: A pressure sensor, the pressure sensor is arranged on the main plate and is located at a side of the elastic member away from the connecting hole; Wherein, when the plug abuts against the connecting end, the elastic member presses the pressure sensor.

3. The electrical connection structure according to claim 1, characterized in that: The connecting end is in a flared shape.

4. The electrical connection structure according to claim 2, characterized in that: The main body plate comprises: A first PCB board, the power supply circuit is arranged on at least one surface of both side surfaces of the first PCB board, and the connection hole is arranged on the first PCB board; A second PCB board, wherein the second PCB board is arranged on the first PCB board; Wherein, an accommodating space is arranged between the first PCB board and the second PCB board at a position corresponding to the connecting hole, and the elastic member and the pressure sensor are arranged in the accommodating space.

5. The electrical connection structure according to claim 4, characterized in that: The second PCB board is provided with an inclined surface on a side facing the first PCB board. The inclined surface is provided at a position corresponding to the connecting hole and is inclined in a direction away from the first PCB board to form the accommodating space between the second PCB board and the first PCB board.

6. The electrical connection structure according to claim 5, characterized in that: The elastic member is in sheet form and is fixed on the first PCB board. The pressure sensor is arranged on the inclined surface. The middle of the elastic member protrudes toward the second PCB board and abuts against the pressure sensor.

7. The electrical connection structure according to claim 2, characterized in that: The elastic member comprises: A fixing part, the fixing part is mounted on the main plate and electrically connected to the power supply circuit, the fixing part having a through-hole-shaped extension hole arranged along the direction of the connecting hole; A contact portion, the contact portion being disposed in the extension hole and being movable along the direction of the extension hole; A spring is arranged in the extension hole to push one end of the contact portion to extend to a position corresponding to the connection end in the connection hole.

8. The electrical connection structure according to claim 7, characterized in that: The main body board includes a first PCB board and a second PCB board that are bonded together, and the power supply circuit is arranged on at least one surface of the first PCB board and the second PCB board; the second PCB board is a single layer or a multi-layer; The connection hole is arranged on the first PCB board; The second PCB board is provided with a first mounting hole at a position corresponding to the connecting hole, the fixing portion is installed in the first mounting hole, and the pressure sensor is arranged on the fixing portion.

9. The electrical connection structure according to any one of claims 4 to 8, characterized in that: The power supply circuit is also connected to the controller; The controller is electrically connected to the pressure sensor and the power supply circuit. When the pressure value detected by the pressure sensor reaches a predetermined value, the controller controls the power supply circuit to supply power. When the pressure value detected by the pressure sensor is lower than the predetermined value, the controller controls the power supply circuit to cut off power.

10. A testing device, characterized in that: It comprises a test board and the electrical connection structure according to any one of claims 1 to 9, wherein the electrical connection structure is adapted to be electrically connected to the test board.

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