Grounding connection structure, circuit board and electronic equipment

Abstract

The utility model discloses a grounding connection structure, a circuit board and electronic equipment. The grounding connection structure comprises a first grounding terminal, a second grounding terminal and a conductive connecting piece which are arranged on the circuit board, the first grounding terminal is arranged above the second grounding terminal in a straddling mode, the conductive connecting piece penetrates through the first grounding terminal and is connected with the second grounding terminal, and the grounding connection structure further comprises an insulating supporting piece. The bottom of the insulating supporting piece is connected to the second grounding terminal, and the top of the insulating supporting piece is connected to the first grounding terminal; and the insulating supporting piece is provided with a positioning through hole for the conductive connecting piece to pass through. According to the utility model, the insulating supporting member is arranged between the first grounding terminal and the second grounding terminal, the conductive connecting member is connected and positioned through the insulating supporting member, and the first grounding terminal and the second grounding terminal are supported and protected, so that the first grounding terminal and the second grounding terminal are prevented from being deformed due to stress in the electrical connection process; and the grounding connection efficiency and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, and particularly relates to a grounding connection structure, a circuit board and an electronic device. Background Art

[0002] For the circuit board of an electronic device, relevant components on the circuit board need to be tested and debugged when leaving the factory. For example, grounding components such as varistors and safety capacitors on the circuit board that are not in the main circuit need to be subjected to high-voltage testing and on-site debugging. During this testing and debugging process, the above-mentioned grounding components need to be selected to be grounded or disconnected.

[0003] In the existing grounding connection structure, as Figure 1 shown, it generally includes a common grounding terminal 12 and a component grounding terminal 13 fixed on the circuit board 11; the common grounding terminal 12 is used for grounding, and the component grounding terminal 13 is electrically connected to other electronic components; the common grounding terminal 12 straddles above the component grounding terminal 13, and both the common grounding terminal 12 and the component grounding terminal 13 are provided with connection through holes 121, and the common grounding terminal 12 and the component grounding terminal 13 are electrically connected by screws 14.

[0004] However, because there is a gap between the common grounding terminal 12 and the component grounding terminal 13, when electrically connecting the two through the screw 14, it is difficult to align the screw 14 with the connection through hole 131 on the component grounding terminal 13, and the two are prone to stress deformation during the connection process of the screw 14, resulting in damage to the component grounding terminal 13. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a grounding connection structure, a circuit board and an electronic device, aiming to solve the problem that the grounding connection structure on the existing circuit board is prone to stress deformation and damage during the electrical connection process.

[0006] To solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions: A grounding connection structure is provided, which is applied to a circuit board. The grounding connection structure includes a first grounding terminal, a second grounding terminal and a conductive connecting piece arranged on the circuit board. The first grounding terminal straddles above the second grounding terminal, and the conductive connecting piece passes through the first grounding terminal and is connected to the second grounding terminal; the grounding connection structure further includes an insulating support piece, the bottom of the insulating support piece is connected to the second grounding terminal, and the top of the insulating support piece is connected to the first grounding terminal; a positioning through hole for the conductive connecting piece to pass through is provided on the insulating support piece.

[0007] Further, a clamping member for clamping to the second grounding terminal is provided at the bottom of the insulating support; a limiting member for limiting to the first grounding terminal is provided at the top of the insulating support.

[0008] In one embodiment, the clamping member includes elastic buckles provided on opposite sides of the insulating support, and the bottom of the insulating support is buckled to opposite sides of the second grounding terminal through the elastic buckles.

[0009] Further, the limiting member includes limiting protrusions provided on opposite sides of the insulating support, and the top of the insulating support is limited to opposite sides of the first grounding terminal through the limiting protrusions.

[0010] Further, a positioning groove is provided at the bottom of the insulating support; the shape of the positioning groove is adapted to the shape of the top of the second grounding terminal.

[0011] Further, at least a part of the second grounding terminal is placed in the positioning groove.

[0012] Further, a first through hole for the conductive connecting member to pass through is provided on the first grounding terminal, and a second through hole for the conductive connecting member to pass through is provided on the second grounding terminal; the axes of the first through hole, the second through hole and the positioning through hole coincide.

[0013] Further, at least one of the first through hole and the second through hole is a threaded hole, and the conductive connecting member is a screw.

[0014] An embodiment of the present invention also provides a circuit board, which includes the grounding connection structure as described above. A plurality of different electronic components connected to the first grounding terminal or the second grounding terminal are provided on the circuit board, and the electronic components include varistors and safety capacitors.

[0015] An embodiment of the present invention also provides an electronic device, which includes the circuit board as described above and a device housing, and the circuit board is arranged in the device housing.

[0016] The beneficial effects of the embodiments of the present invention are as follows: An insulating support is arranged between the first grounding terminal and the second grounding terminal. The conductive connecting member is connected and positioned through the insulating support, and the first grounding terminal and the second grounding terminal are supported and protected, so as to prevent the first grounding terminal and the second grounding terminal from being stressed and deformed during the electrical connection process, and improve the efficiency and safety of the grounding connection. Description of the Drawings

[0017] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of a grounding connection structure provided by the prior art;

[0019] Figure 2 Schematic diagram of the grounding connection structure provided by the embodiments of the present utility model;

[0020] Figure 3 Exploded structure schematic diagram of the grounding connection structure provided by the embodiments of the present utility model from the first perspective;

[0021] Figure 4 Exploded structure schematic diagram of the grounding connection structure provided by the embodiments of the present utility model from the second perspective.

[0022] Explanation of the markings in the figure:

[0023] 11. Circuit board; 12. Common grounding terminal; 121. Connection through-hole; 13. Component grounding terminal; 14. Screw; 20. Grounding connection structure; 21. First grounding terminal; 211. First through-hole; 22. Second grounding terminal; 221. Second through-hole; 23. Conductive connecting piece; 24. Insulating support; 241. Positioning through-hole; 242. Elastic buckle; 243. Limiting protrusion; 244. Positioning groove. Detailed implementation manners

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0025] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0026] It should also be understood that the terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. As used in the specification of the present utility model and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0027] It should be further understood that the term "and / or" used in the specification of the present utility model and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0028] Please refer to Figure 2 and Figure 3 , an embodiment of the present utility model provides a grounding connection structure 20, which is applied to a circuit board 11. The grounding connection structure 20 includes a first grounding terminal 21, a second grounding terminal 22 and a conductive connecting member 23 arranged on the circuit board 11. The first grounding terminal 21 straddles above the second grounding terminal 22, and the conductive connecting member 23 passes through the first grounding terminal 21 and is connected to the second grounding terminal 22; the grounding connection structure 20 further includes an insulating support member 24. The bottom of the insulating support member 24 is connected to the second grounding terminal 22, and the top of the insulating support member 24 is connected to the first grounding terminal 21; a positioning through hole 241 for the conductive connecting member 23 to pass through is provided on the insulating support member 24.

[0029] In this embodiment, the first grounding terminal 21 and the second grounding terminal 22 are connected by the insulating support member 24, and the first grounding terminal 21 and the second grounding terminal 22 are supported and protected, which can ensure the relative fixation between the first grounding terminal 21 and the second grounding terminal 22, and the conductive connecting member 23 is connected and positioned through the positioning through hole 241 provided on the insulating support member 24, so that the conductive connecting member 23 will not cause stress deformation of the first grounding terminal 21 and the second grounding terminal 22 during the electrical connection process, thereby improving the efficiency and safety of the grounding connection.

[0030] In some specific implementation manners, a first through hole 211 for a conductive connecting member 23 to pass through is provided on the first grounding terminal 21, and a second through hole 221 for the conductive connecting member 23 to pass through is provided on the second grounding terminal 22; an insulating support member 24 is disposed between the first grounding terminal 21 and the second grounding terminal 22 for support, so that the first grounding terminal 21 and the second grounding terminal 22 are relatively fixed, and the axes of the first through hole 211, the second through hole 221, and the positioning through hole 241 can be made to coincide; in this way, the conductive connecting member 23 can be connected and positioned, ensuring accurate correspondence during the electrical connection of the conductive connecting member 23. Further, at least one of the first through hole 211 and the second through hole 221 is a threaded hole, and the conductive connecting member 23 is a screw 14; after the conductive connecting member 23 passes through the first through hole 211, the second through hole 221, and the positioning through hole 241, it is threadedly connected to the first through hole 211 or the second through hole 221, thereby maintaining the stability of the electrical connection.

[0031] In one embodiment, the first grounding terminal 21 may be a common grounding terminal 12, and the second grounding terminal 22 may be a component grounding terminal 13; alternatively, the first grounding terminal 21 may be a component grounding terminal 13, and the second grounding terminal 22 may be a common grounding terminal 12. The first grounding terminal 21 and the second grounding terminal 22 are respectively fixed on the circuit board 11, and the common grounding terminal is grounded. The component grounding terminal includes a plurality of independent terminals, and the plurality of independent component grounding terminals are respectively electrically connected to different electronic components on the circuit board. The number of component grounding terminals can be set according to the number of electronic components to be grounded.

[0032] In one embodiment, the insulating material used for the insulating support member 24 may be a material with sufficient hardness such as plastic, which is only used for connection and positioning between the first grounding terminal 21 and the second grounding terminal 22 and will not conduct electricity.

[0033] In one embodiment, there may be a plurality of second grounding terminals 22 (this terminal is a component grounding terminal) and they are arranged side by side below the first grounding terminal 21; correspondingly, a plurality of positioning through holes 241 are correspondingly provided on the insulating support member 24; a plurality of conductive connecting members 23 pass through the first grounding terminal 21, and then respectively pass through the plurality of positioning through holes 241 one by one and are connected to the plurality of second grounding terminals 22.

[0034] Please refer to Figure 3 and Figure 4 , and the insulating support member 24 of the present application will be specifically introduced below.

[0035] In one embodiment, a clamping member for clamping to the second grounding terminal 22 is provided at the bottom of the insulating support member 24 to limit the loosening of the insulating support member 24 in a first direction; a limiting member for limiting to the first grounding terminal 21 is provided at the top of the insulating support member 24 to limit the loosening of the insulating support member 24 in a second direction; wherein, the first direction is perpendicular to the second direction.

[0036] In this embodiment, the insulating support member 24 is located in the gap between the first grounding terminal 21 and the second grounding terminal 22. To ensure the stability of the insulating support member 24, the relative fixation between the first grounding terminal 21 and the second grounding terminal 22 can be ensured; therefore, a clamping member is designed at the bottom of the insulating support member 24. By tightly clamping the clamping member on the second grounding terminal 22, unnecessary movement or loosening of the insulating support member 24 in the first direction can be effectively prevented; similarly, a limiting member is designed at the top of the insulating support member 24. By limiting the first grounding terminal 21 in the second direction through the limiting member, it is ensured that the insulating support member 24 will not move or loosen in the second direction. It should be noted that the first direction and the second direction mentioned here are perpendicular to each other. This design can ensure the stability of the insulating support member 24 in two directions, thereby ensuring the connection positioning effect on the first grounding terminal 21 and the second grounding terminal 22.

[0037] In one embodiment, the clamping member includes elastic buckles 242 provided on opposite sides of the insulating support member 24, and the bottom of the insulating support member 24 is buckled to opposite sides of the second grounding terminal 22 through the elastic buckles 242.

[0038] In this embodiment, the elastic buckles 242 can be integrally formed on opposite sides of the bottom of the insulating support member 24, that is, there are at least a pair of elastic buckles 242. The function of the elastic buckles 242 is to ensure that the bottom of the insulating support member 24 can be firmly clamped on opposite sides of the top of the second grounding terminal 22 to limit the movement or loosening of the insulating support member 24 in the first direction; through this design, not only the stability of the connection is ensured, but also the disassembly and installation processes become simple and convenient.

[0039] It should be noted that if there are multiple second grounding terminals 22, the elastic buckles 242 are clamped to opposite sides of the two outermost second grounding terminals 22 among the multiple second grounding terminals 22.

[0040] In one embodiment, the limiting member includes limiting protrusions 243 provided on opposite sides of the insulating support member 24 (the direction of the opposite sides where the limiting member is located here is perpendicular to the direction of the opposite sides where the above-mentioned clamping member is located), and the top of the insulating support member 24 is limited to opposite sides of the first grounding terminal 21 through the limiting protrusions 243.

[0041] In this embodiment, the limiting protrusions 243 can be integrally formed on the opposite sides of the insulating support 24, and the limiting protrusions 243 protrude above the top of the insulating support 24 in the height direction. The bottom side of the second grounding terminal 22 is attached to the top surface of the insulating support 24. There are at least a pair of limiting protrusions 243, and the insulating support 24 is abutted against both sides of the second grounding terminal 22 through at least a pair of limiting protrusions 243, so as to limit the movement or looseness of the insulating support 24 in the second direction, thereby ensuring the overall stability of the insulating support 24.

[0042] It should be noted that if there are multiple second grounding terminals 22, multiple pairs of limiting protrusions 243 can be provided, and multiple pairs of limiting protrusions 243 are arranged side by side to limit the opposite sides of multiple first grounding terminals 21.

[0043] In one embodiment, a positioning groove 244 is provided at the bottom of the insulating support 24; the shape of the positioning groove 244 is adapted to the shape of the top of the second grounding terminal 22.

[0044] In this embodiment, when the insulating support 24 is clamped to the second grounding terminal 22, the bottom positioning groove 244 is used for alignment and cooperation with the top of the second grounding terminal 22, so that after the insulating support 24 is clamped to the second grounding terminal 22, the insulating support 24 can be reliably fixed on the top of the second grounding terminal 22, that is, the top of the second grounding terminal 22 is placed in the positioning groove 244, thereby achieving a limiting effect to enhance the clamping stability of the insulating support 24.

[0045] In one embodiment, the shapes of the first grounding terminal 21 and the second grounding terminal 22 are both U-shaped, and the U-shaped openings of the first grounding terminal 21 and the second grounding terminal 22 are perpendicular to each other; wherein, the clamping member is clamped to both sides of the U-shaped opening of the second grounding terminal 22, and the limiting member is limited to both sides of the U-shaped opening of the first grounding terminal 21.

[0046] In this embodiment, the overall shapes of the first grounding terminal 21 and the second grounding terminal 22 are similar. By arranging the U-shaped openings of the first grounding terminal 21 and the second grounding terminal 22 perpendicular to each other, it is convenient for the clamping member and the limiting member of the insulating support 24 to be connected to the first grounding terminal 21 and the second grounding terminal 22 respectively from two directions, thereby ensuring the connection stability of the support frame, and further ensuring the mutual fixation between the first grounding terminal 21 and the second grounding terminal 22. That is, it is ensured that the conductive connecting member 23 can better electrically connect the first grounding terminal 21 and the second grounding terminal 22, thereby avoiding the problem of stress deformation of the first grounding terminal 21 and the second grounding terminal 22.

[0047] An embodiment of the present utility model further provides a circuit board 11, which includes the grounding connection structure 20 as described above. A plurality of different electronic components connected to the first grounding terminal 21 or the second grounding terminal 22 are provided on the circuit board 11. The electronic components include varistors and safety capacitors. Thus, the testing and debugging of electronic components such as varistors and safety capacitors can be realized.

[0048] An embodiment of the present utility model further provides an electronic device, which includes the circuit board 11 as described above and a device housing. The circuit board 11 is disposed inside the device housing.

[0049] As described above, the above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A ground connection structure, applied to a circuit board, comprising a first ground terminal, a second ground terminal and a conductive connection member arranged on the circuit board, wherein the first ground terminal stands on top of the second ground terminal, and the conductive connection member passes through the first ground terminal and is connected to the second ground terminal, characterized in that: The ground connection structure also includes an insulating support member, the bottom of the insulating support member is connected to the second ground terminal, and the top of the insulating support member is connected to the first ground terminal; the insulating support member is provided with a positioning through hole for the conductive connection member to pass through.

2. The ground connection structure according to claim 1, characterized in that: A clamping piece clamped to the second grounding terminal is provided at the bottom of the insulating support member; and a limiting piece limited to the first grounding terminal is provided at the top of the insulating support member.

3. The ground connection structure according to claim 2, characterized in that: The clamping member includes elastic buckles arranged on opposite sides of the insulating support member, and the bottom of the insulating support member is buckled on opposite sides of the second grounding terminal through the elastic buckles.

4. The ground connection structure according to claim 2, characterized in that: The limiting member includes limiting protrusions arranged on opposite sides of the insulating support member, and the top of the insulating support member is limited to opposite sides of the first grounding terminal by the limiting protrusions.

5. The ground connection structure according to any one of claims 1 to 4, characterized in that: A positioning groove is provided at the bottom of the insulating support member; the shape of the positioning groove is adapted to the shape of the top of the second grounding terminal.

6. The ground connection structure according to claim 5, characterized in that: The second grounding terminal is at least partially disposed in the positioning groove.

7. The ground connection structure according to claim 1, characterized in that: The first grounding terminal is provided with a first through hole for the conductive connecting member to pass through, and the second grounding terminal is provided with a second through hole for the conductive connecting member to pass through; the axes of the first through hole, the second through hole and the positioning through hole coincide with each other.

8. The ground connection structure according to claim 7, characterized in that: At least one of the first through hole and the second through hole is a threaded hole, and the conductive connecting member is a screw.

9. A circuit board, characterized in that: It comprises the grounding connection structure as claimed in any one of claims 1 to 8, wherein the circuit board is provided with a plurality of different electronic components connected to the first grounding terminal or the second grounding terminal, and the electronic components include a varistor and a safety capacitor.

10. An electronic device, characterized in that: It comprises the circuit board and a device casing as claimed in claim 9, wherein the circuit board is arranged in the device casing.

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