Mainboard grounding structure and electronic equipment

Abstract

The utility model discloses a mainboard grounding structure and electronic equipment. The mainboard grounding structure comprises a shell, a mainboard, a metal elastic sheet and a connecting body, the mainboard is arranged in the shell; the mainboard is provided with a mainboard grounding part; the metal elastic sheet comprises a fixing part; the mainboard grounding part is provided with a first through hole, and the fixing part is provided with a second through hole. One end of the metal elastic sheet is arranged on the mainboard grounding part, and the connector sequentially penetrates through the second through hole and the first through hole and is fixedly connected with the shell; the other end of the metal elastic sheet is used for abutting against the shell. The metal elastic piece, the mainboard and the shell are assembled to form a complete combined structure based on the connecting body and the first through hole, and the metal elastic piece abuts against the shell, so that the mainboard is grounded. The main board and the shell are assembled while the grounding structure is laid, the assembling process is effectively simplified, and the installation structure is simple. In addition, the space occupancy rate of the metal elastic sheet structure is low, and the space utilization rate in the shell is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment grounding, in particular to a mainboard grounding structure and electronic equipment. Background Art

[0002] In the related art, the circuit boards of most electronic devices usually use grounding cloth to achieve circuit grounding. However, this grounding method requires laying the grounding cloth first, then installing the circuit board, and finally installing the housing during installation, which makes the assembly process of the circuit board complicated, the installation is difficult, and the grounding cloth occupies a large space. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a mainboard grounding structure and electronic equipment, simplify the grounding structure of the circuit mainboard, and improve assembly efficiency and space utilization.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A mainboard grounding structure, comprising a shell, a mainboard, a metal spring and a connector;

[0006] The mainboard is arranged inside the housing; the mainboard is provided with a mainboard grounding portion; the metal spring includes a fixing portion;

[0007] The mainboard grounding portion is provided with a first through hole, and the fixing portion is provided with a second through hole;

[0008] One end of the metal spring is arranged on the grounding part of the mainboard, the connector passes through the second through hole and the first through hole in sequence, and is fixedly connected to the shell; the other end of the metal spring is used to abut against the shell.

[0009] Furthermore, the mainboard is further provided with a third through hole around the first through hole; the fixing portion is further provided with a fourth through hole around the second through hole; and the housing is further provided with a positioning column;

[0010] The positioning column passes through the third through hole and the fourth through hole in sequence to achieve the limiting of the metal spring.

[0011] Furthermore, the metal spring also includes a straight plate portion and a bent portion;

[0012] One end of the straight plate portion is connected to one end of the fixing portion, and the other end of the straight plate portion is connected to the bending portion through an arc transition, and the arc transition is used to abut against the shell.

[0013] Further, the housing includes a cover and a metal bottom plate;

[0014] The main board is arranged inside the cover body, and the arc-shaped transition part is used for abutting against the metal bottom plate.

[0015] Furthermore, the shell includes interface holes, and the interface holes are arranged one by one opposite to the interface modules on the mainboard.

[0016] Furthermore, it also includes a counterweight;

[0017] The counterweight block is arranged in an area inside the cover body where the main board is not arranged.

[0018] Furthermore, the counterweight block is provided with a first threading groove; the cover body is provided with a second threading groove;

[0019] The first wire threading groove and the second wire threading groove are arranged with the same central axis, and the first wire threading groove and the second wire threading groove are used for threading the connection wire between the mainboard and the external device.

[0020] Furthermore, the first wire threading groove is arranged corresponding to the wiring port of the mainboard, and the wiring port is used to connect the connecting wire.

[0021] Furthermore, a tenon is provided inside the shell; and a mortise is provided on the main board;

[0022] The mainboard is clamped with the tenon through the mortise to be fixed inside the shell.

[0023] In order to solve the above technical problems, another technical solution adopted by the utility model is:

[0024] An electronic device comprises the above-mentioned mainboard grounding structure.

[0025] The beneficial effect of the utility model is that: a first through hole is set in the grounding part of the mainboard, a second through hole is set in the metal spring, and a connector penetrates the first through hole and the second through hole to connect the mainboard grounding part and the shell, thereby assembling the metal spring, the mainboard and the shell based on the connector to form a complete combined structure, and only the metal spring in the combined structure needs to be abutted against the shell to achieve the conductive grounding between the shell and the mainboard grounding part, and the mainboard realizes the assembly of the mainboard and the shell while completing the layout of the grounding structure, without the need to assemble one by one in a fixed order, effectively simplifying the assembly process, and the installation structure is simple. In addition, the present application uses metal springs for grounding, and the space occupancy rate of the metal spring structure is low, which effectively improves the space utilization rate in the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural explosion diagram of a mainboard grounding structure in an embodiment of the utility model;

[0027] Figure 2 This is a bottom structural diagram of a mainboard grounding structure (metal springs not shown) in an embodiment of the present utility model;

[0028] Figure 3 This is a bottom structural diagram of a mainboard grounding structure (showing a metal spring) in an embodiment of the present utility model;

[0029] Figure 4 This is a schematic diagram of the structure of a metal spring in an embodiment of the utility model;

[0030] Figure 5 It is an assembly structure diagram of a mainboard grounding structure (showing a metal bottom plate) in an embodiment of the utility model;

[0031] Figure 6 This is a structural schematic diagram of a cover body in an embodiment of the utility model;

[0032] Figure 7 for Figure 6 Detailed diagram of point A in the middle;

[0033] Figure 8 This is a structural schematic diagram of a counterweight block in an embodiment of the utility model;

[0034] Fig. 9 This is an assembly structure diagram of a connecting line in an embodiment of the utility model;

[0035] Fig.10 for Fig. 9 Detailed diagram at B in the middle;

[0036] Description of labels:

[0037] 1. Shell; 11. Cover; 12. Metal bottom plate; 101. Positioning column; 102. Interface hole; 111. Threaded column; 112. Reinforcing rib; 113. Second threading groove; 114. Tenon; 2. Main board; 211. First through hole; 212. Third through hole; 213. Mortise; 214. Wiring port; 3. Metal spring; 31. Fixing part; 311. Second through hole; 312. Fourth through hole; 32. Straight plate part; 33. Bending part; 4. Connector; 5. Counterweight; 51. First threading groove; 201. Connecting wire. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0039] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0040] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0041] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0042] In the related art, in order to achieve the grounding of the mainboard, when installing the circuit mainboard, the grounding cloth must be laid on the conductor first, then the circuit mainboard is installed, and finally the shell is installed. However, this grounding method requires the grounding cloth to be laid first, then the circuit mainboard is installed, and finally the shell is installed. Moreover, if the circuit mainboard is directly pre-connected with the shell, and then the circuit mainboard and the shell are installed on the conductor at the same time, it will cause the grounding cloth to be difficult to connect with the circuit mainboard. Therefore, this grounding method makes the assembly process of the circuit mainboard complicated, the installation is difficult, and the grounding cloth occupies a large space.

[0043] In order to solve the above technical problems, the embodiment of the utility model provides a mainboard grounding structure, specifically:

[0044] A motherboard grounding structure comprises a shell, a motherboard, a metal spring and a metal connector; the motherboard is arranged inside the shell; a first through hole is arranged at the grounding end of the motherboard, one end of the metal spring is arranged on a side of the first through hole away from the grounding end, the metal connector sequentially penetrates the metal spring and the first through hole and is connected to the grounding end and the shell; the other end of the metal spring is used to abut against a conductor.

[0045] As can be seen from the above description, the beneficial effects of the utility model are: a first through hole is set in the grounding part of the mainboard, a second through hole is set in the metal spring, and the first through hole and the second through hole are penetrated by a connector to connect the grounding part of the mainboard and the shell, thereby assembling the metal spring, the mainboard and the shell based on the connector to form a complete combined structure, and only the metal spring in the combined structure needs to be abutted against the shell to achieve conductive grounding between the shell and the mainboard grounding part, and the mainboard realizes the assembly of the mainboard and the shell while completing the layout of the grounding structure, without the need to assemble one by one in a fixed order, effectively simplifying the assembly process, and the installation structure is simple. In addition, the present application uses metal springs for grounding, and the space occupancy rate of the metal spring structure is low, which effectively improves the space utilization rate in the shell.

[0046] In one embodiment of the present application, the mainboard is further provided with a third through hole around the first through hole; the fixing portion is further provided with a fourth through hole around the second through hole; and the housing is further provided with a positioning column;

[0047] The positioning column passes through the third through hole and the fourth through hole in sequence to achieve the limiting of the metal spring.

[0048] From the above description, it can be seen that if the main board and the metal spring are fixed only by the first through hole, the second through hole and the connector, the metal spring is prone to rotational movement between the main board and the metal spring, causing poor contact. Therefore, by respectively setting the third through hole and the fourth through hole on the main board and the metal spring, when the positioning column on the shell passes through the third through hole and the fourth through hole, the positioning column cooperates with the connector to fix the metal spring and the main board.

[0049] In one embodiment of the present application, the metal spring further includes a straight portion and a bent portion;

[0050] One end of the straight plate portion is connected to one end of the fixed portion, and the other end of the straight plate portion is connected to the bent portion through an arc transition, and the arc transition is used to abut against the shell.

[0051] From the above description, it can be seen that the straight plate portion is used to provide elastic support, and the bent portion is used to form an arc-shaped transition connection, thereby increasing the contact surface between the metal spring and the shell at various angles, improving the connection reliability, and facilitating the metal spring to automatically adjust the abutment point according to the relative space between the mainboard and the shell.

[0052] In one embodiment of the present application, the housing includes a cover and a metal bottom plate;

[0053] The main board is arranged inside the cover body, and the arc-shaped transition part is used for abutting against the metal bottom plate.

[0054] From the above description, it can be seen that the metal base plate in the shell is directly used as a grounding conductor, so that when the cover body and the metal base plate in the shell are installed, the metal spring sheet set on the mainboard of the cover body is abutted against the metal base plate, and the assembly of the mainboard grounding structure is completed simultaneously, which effectively improves the assembly efficiency of the equipment.

[0055] In one embodiment of the present application, the housing includes interface holes, and the interface holes are arranged one by one opposite to the interface modules on the mainboard.

[0056] As can be seen from the above description, the interface hole facilitates the interface module function on the mainboard.

[0057] In one embodiment of the present application, a counterweight block is also included;

[0058] The counterweight block is arranged in an area inside the cover body where no main board is arranged.

[0059] It can be seen from the above description that the weight at both ends of the cover body is balanced by the counterweight block, so that the shell is more stable and will not tilt.

[0060] In one embodiment of the present application, a first threading groove is provided on the counterweight block; a second threading groove is provided inside the cover body;

[0061] The first wire threading groove and the second wire threading groove are arranged with the same central axis, and the first wire threading groove and the second wire threading groove are used to arrange the connection line between the mainboard and the external device.

[0062] It can be seen from the above description that corresponding wire threading grooves are respectively provided on the counterweight block and the cover body to facilitate threading of connecting wires between the mainboard and external devices, thereby improving the space utilization inside the cover body.

[0063] In one embodiment of the present application, the first wire threading groove is arranged corresponding to the wiring port of the mainboard, and the wiring port is used to connect the connecting wire.

[0064] From the above description, it can be seen that the first wire threading groove is arranged corresponding to the wiring port of the mainboard, so as to avoid the problem of winding or bending of the connecting wire and optimize the line setting of the mainboard.

[0065] In one embodiment of the present application, a tenon is provided inside the housing; a mortise is provided on the main board;

[0066] The mainboard is fixed inside the shell by clamping with the mortise and tenon.

[0067] It can be seen from the above description that the assembly structure of the mainboard is simplified and the assembly efficiency is improved through the mortise and tenon clamping.

[0068] Another embodiment of the utility model provides an electronic device, including the above-mentioned mainboard grounding structure.

[0069] In one embodiment of the present application, the electronic device may be a cash register, a self-service terminal, a payment device, or the like.

[0070] The mainboard grounding structure provided by the utility model can be applied to financial terminal scenarios such as cash registers, and is described below through specific implementation methods:

[0071] Embodiment 1

[0072] like Figure 1 As shown, a mainboard grounding structure includes a shell 1, a mainboard 2, a metal spring 3 and a connector 4, and the mainboard 2 is arranged inside the shell 1.

[0073] like Figure 2 As shown, the mainboard 2 is provided with a mainboard grounding portion 21; wherein the mainboard grounding portion 21 can be provided at any position of the mainboard 2, and in this embodiment, the mainboard grounding portion 21 is provided at the edge of the mainboard 2. The mainboard grounding portion 21 is provided with a first through hole 211; wherein the first through hole 211 is not only used to install the metal spring 3, but also used to fix the mainboard 2 to the housing 1.

[0074] like Figure 3 As shown, the metal spring 3 includes a fixing portion 31; a second through hole 311 is provided on the fixing portion 31; one end of the metal spring 3 is provided on the mainboard grounding portion 21, and the connector 4 passes through the second through hole 311 and the first through hole 211 in sequence, and is fixedly connected to the shell 1; the other end of the metal spring 3 is used to abut against the shell 1.

[0075] In one embodiment of the present application, in order to reduce costs, the connector 4 and the metal spring sheet 3 are designed as separate bodies, and the connector 4 passes through the metal spring sheet 3 to be fixedly connected.

[0076] In one embodiment of the present application, in order to improve assembly efficiency, the connector 4 and the metal spring sheet 3 are integrally formed, thereby reducing the steps of assembling the connector 4 and the metal spring sheet 3 .

[0077] like Figure 4 As shown, the metal spring sheet 3 also includes a straight plate portion 32 and a bent portion 33; one end of the straight plate portion 32 is connected to one end of the fixing portion 31, and the other end of the straight plate portion 32 is connected to the bent portion 33 through an arc transition, and the arc transition is used to abut against the housing 1. Among them, a hook-shaped structure can be set at the position corresponding to the housing 1 and the metal spring sheet 3, and the hook-shaped structure is engaged with the bent portion of the metal spring sheet 3 to avoid the problem that the straight plate portion 32 cannot abut against the housing 1 after losing its elasticity.

[0078] like Figure 5 As shown, the housing 1 includes a cover 11 and a metal bottom plate 12 ; the main board 2 is arranged inside the cover 11 , and the arc-shaped transition part of the metal spring 3 is used to abut against the metal bottom plate 12 .

[0079] like Figure 6 and Figure 7 As shown, in one embodiment of the present application, the connector 4 is a screw, and a corresponding threaded column 111 is provided inside the cover 11, and the connector 4 can sequentially pass through the metal spring 3 and the main board 2 to connect the threaded column 111 to fix the main board 2 inside the cover 11. At the same time, the metal bottom plate 12 can be fixed to the cover 11 by screws and the threaded column 111.

[0080] like Figure 6 and Figure 7 As shown, the inner wall of the cover body 11 is provided with grid-type reinforcing ribs 112, and four reinforcing ribs 112 are provided around the threaded column 111. Without increasing the thickness of the cover body 11 and the diameter of the threaded column 111, the strength and rigidity of the cover body 11 and the threaded column 111 are enhanced to reduce the cost and weight, while ensuring that the cover body 11 and the threaded column 111 will not be twisted and deformed due to external stress.

[0081] like Figure 2 , Figure 3 and Figure 7 As shown, the main board 2 is further provided with a third through hole 212 around the first through hole 211; the fixing portion 31 is further provided with a fourth through hole 312 around the second through hole 311; a positioning column 101 is further provided on the shell 1; wherein the fourth through hole 312 and the third through hole 212 are arranged with the same central axis; the positioning column 101 sequentially passes through the third through hole 212 and the fourth through hole 312 to realize the limiting of the metal spring 3.

[0082] In an embodiment of the present application, if the connector 4 and the metal spring sheet 3 are formed as one piece, the housing 1 does not need to be provided with a positioning column 101 for limiting.

[0083] like Figure 5 and Figure 6 As shown, the housing 1 includes an interface hole 102, and the interface hole 102 is arranged one by one opposite to the interface module on the mainboard.

[0084] like Figure 2 and Figure 3 As shown, the mainboard grounding structure further includes a counterweight 5 ; the counterweight 5 is disposed in an area inside the cover 11 where the mainboard 2 is not disposed.

[0085] like Figure 8 and Fig. 9 As shown, the counterweight 5 is provided with a first threading groove 51; the cover 11 is provided with a second threading groove 113; the first threading groove 51 and the second threading groove 113 are provided with the same central axis, and the first threading groove 51 and the second threading groove 113 are used to set the connection line 201 between the mainboard 2 and the external device. The first threading groove 51 is provided corresponding to the wiring port 214 of the mainboard 2, and the wiring port 214 is used to connect the connection line 201.

[0086] like Fig.10 As shown, a tenon 114 is provided inside the housing 1 ; a mortise 213 is provided on the main board 2 ; the main board 2 is engaged with the tenon 114 through the mortise 213 to be fixed inside the housing 1 .

[0087] Embodiment 2

[0088] An electronic device includes the mainboard grounding structure of the first embodiment. For example, the electronic device is a financial terminal device such as a cash register, and the circuit mainboard of the financial terminal needs to be arranged on the bottom plate of the metal bracket. The circuit mainboard of the financial terminal and the cover body are pre-assembled and connected, and then assembled with the metal bottom plate of the metal bracket, wherein the metal bracket is used to install the display screen, which realizes the mainboard grounding and makes the installation process of the electronic device simpler and faster.

[0089] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A mainboard grounding structure, characterized in that: It includes a shell, a main board, a metal spring and a connector; The mainboard is arranged inside the housing; the mainboard is provided with a mainboard grounding portion; the metal spring includes a fixing portion; The mainboard grounding portion is provided with a first through hole, and the fixing portion is provided with a second through hole; One end of the metal spring is arranged on the grounding part of the mainboard, the connector passes through the second through hole and the first through hole in sequence, and is fixedly connected to the shell; the other end of the metal spring is used to abut against the shell.

2. A mainboard grounding structure according to claim 1, characterized in that: The mainboard is further provided with a third through hole around the first through hole; the fixing portion is further provided with a fourth through hole around the second through hole; and the housing is further provided with a positioning column; The positioning column passes through the third through hole and the fourth through hole in sequence to achieve the limiting of the metal spring.

3. A mainboard grounding structure according to claim 1, characterized in that: The metal spring also includes a straight plate portion and a bent portion; One end of the straight plate portion is connected to one end of the fixing portion, and the other end of the straight plate portion is connected to the bending portion through an arc transition, and the arc transition is used to abut against the shell.

4. A mainboard grounding structure according to claim 3, characterized in that: The housing comprises a cover and a metal bottom plate; The main board is arranged inside the cover body, and the arc-shaped transition part is used for abutting against the metal bottom plate.

5. The mainboard grounding structure according to claim 1, characterized in that: The shell includes interface holes, and the interface holes are arranged one by one opposite to the interface modules on the mainboard.

6. A mainboard grounding structure according to claim 4, characterized in that: Also includes weights; The counterweight block is arranged in an area inside the cover body where the main board is not arranged.

7. A mainboard grounding structure according to claim 6, characterized in that: The counterweight block is provided with a first threading groove; the cover body is provided with a second threading groove; The first wire threading groove and the second wire threading groove are arranged with the same central axis, and the first wire threading groove and the second wire threading groove are used for threading the connection wire between the mainboard and the external device.

8. A mainboard grounding structure according to claim 7, characterized in that: The first threading groove is arranged corresponding to the wiring port of the mainboard, and the wiring port is used to connect the connecting wire.

9. The mainboard grounding structure according to claim 1, characterized in that: The shell is provided with a tenon inside; the main board is provided with a mortise; The mainboard is clamped with the tenon through the mortise to be fixed inside the shell.

10. An electronic device, characterized in that: It comprises a mainboard grounding structure as described in any one of claims 1-9.

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