CN204887686U

CN204887686U - PCB plate earthing structure

Info

Publication number: CN204887686U
Application number: CN201520695204.1U
Authority: CN
Inventors: 侯红平
Original assignee: Wuhan Huazhong Numerical Control Co Ltd
Current assignee: Wuhan Huazhong Numerical Control Co Ltd
Priority date: 2015-09-09
Filing date: 2015-09-09
Publication date: 2015-12-16
Anticipated expiration: 2025-09-09

Abstract

The utility model discloses a PCB plate earthing structure, including ground connection subassembly, radiator and PCB board, the ground connection subassembly is including bending and the earthing screw, bends including first bend end and the second end of bending, first bend to serve be provided with draw -in groove and lower draw -in groove side by side, the second is bent to hold and is passed through the earthing screw fixed mounting be in on the radiator, the side of PCB board is being provided with metal reed and time metal reed respectively corresponding to the last draw -in groove and the position of draw -in groove down, go up metal reed and metal reed longitudinal symmetry setting down, both follow respectively it passes with lower draw -in groove department to go up the draw -in groove piece and the cooperation of bending is pressed from both sides tightly bend on the piece, thus will the piece of bending is fixed in on the PCB board. The utility model discloses a connected mode is simple, and convenient operation saves time, has guaranteed simultaneously that PCB board and radiator are between them to be connected, and the contact has closely reduced operation.

Description

A kind of pcb board ground structure

Technical field

The utility model belongs to pcb board field, more specifically, relates to a kind of pcb board ground structure.

Background technology

At present, pcb board typically uses screw with the connected mode of radiator and is connected, and grounding leg is opened four through holes, above two hole screws and pcb board fix, below two hole screws be connected with radiator, by screw fastening, realize the grounding connection of pcb board.First this mode is installed and is comparatively bothered, and by instrument, need waste time and energy, tightly can not cause loosening of pcb board if installed simultaneously, occur loose contact, the problems such as vibrations, screw even can be made to get loose for a long time, cause ground connection unstable properties, become the unsafe factor in use.

Utility model content

For above defect or the Improvement requirement of prior art, the utility model provides a kind of pcb board ground structure, and assembling is simple, and easy to operate, contact performance is good.

For achieving the above object, according to the utility model, provide a kind of pcb board ground structure, it is characterized in that, comprise grounding assembly, radiator and pcb board, wherein,

Described grounding assembly comprises bending part and earthing screw, described bending part comprises the first bending end and the second bending end, described first bending end draw-in groove and lower bayonet slot have been arranged side by side, described upper draw-in groove and lower bayonet slot are all horizontally disposed with, and described second bending end is fixedly mounted on described radiator by described earthing screw;

The position of side draw-in groove and lower bayonet slot on corresponding to of described pcb board is respectively arranged with metal spring leaf and lower metal spring leaf;

Described upper metal spring leaf and lower metal spring leaf are symmetrical arranged up and down, and both also coordinate the described bending part of clamping from described upper draw-in groove and lower bayonet slot through described bending part respectively, thus are fixed on described pcb board by described bending part.

Preferably, the quantity of described earthing screw is two or more.

Preferably, the first bending end of described bending part is vertical with the second bending end.

Preferably, described upper metal spring leaf overall U-shaped, it is opening down.

In general, the above technical scheme conceived by the utility model compared with prior art, can obtain following beneficial effect: connected mode of the present utility model is simple, easy to operate, save time, ensure that the connection of pcb board and radiator simultaneously, contact closely, decrease operational sequence, connect without the need to can realize both by instrument, metal spring leaf has larger elastic deformation amount, long service life simultaneously, be convenient to repeatedly dismantle, meet the application of industrial pcb board grounding connection.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of grounding assembly in the utility model;

Fig. 2 is the schematic diagram of metal spring leaf in the utility model;

Fig. 3 is structural representation of the present utility model;

Fig. 4 is decomposing schematic representation of the present utility model.

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.In addition, if below in described each execution mode of the utility model involved technical characteristic do not form conflict each other and just can mutually combine.

With reference to Fig. 1 ~ Fig. 4, a kind of pcb board ground structure, comprises grounding assembly 8, radiator 6 and pcb board 5, wherein,

Described grounding assembly 8 comprises bending part 1 and earthing screw 7, described bending part 1 comprises the first bending end and the second bending end, described first bending end draw-in groove 31 and lower bayonet slot 32 have been arranged side by side, described upper draw-in groove 31 and lower bayonet slot 32 are all horizontally disposed with, and described second bending end is fixedly mounted on described radiator 6 by described earthing screw 7;

The position of side draw-in groove 31 and lower bayonet slot 32 on corresponding to of described pcb board 5 is respectively arranged with metal spring leaf 41 and lower metal spring leaf 42;

Described upper metal spring leaf 41 and lower metal spring leaf about 42 are symmetrical arranged, both pass described bending part 1 from described upper draw-in groove 31 and lower bayonet slot 32 respectively, and both dependence elastic force be applied on bending part 1 coordinates on the described bending part 1 of clamping, thus is fixed on described pcb board 5 by described bending part 1.

Further, the quantity of described earthing screw 7 is two or more, to fix bending part 1 better, prevents bending part 1 from rotating.

Preferably, the first bending end of described bending part 1 is vertical with the second bending end, to be connected on heat radiation product by described pcb board 5 quickly and easily.

Preferably, described upper metal spring leaf 41 overall U-shaped, it is opening down, can be installed on upper metal spring leaf 41 and lower metal spring leaf 42 by described bending part 1 quickly and easily like this, and upper metal spring leaf 41 and lower metal spring leaf 42 can rely on both elastic force to coordinate clamping bending part 1.

With reference to Fig. 3, Fig. 4, first two earthing screws 7 are each passed through the two through hole 2 on bending part 1, bending part 1 is fixed on radiator 6, again the upper metal spring leaf 41 on PCB and lower metal spring leaf 42 are aimed at respectively the upper draw-in groove 31 on bending part 1 and lower bayonet slot 32, two metal spring leafs are utilized to have flexible feature, part between two draw-in grooves is pressed in the opening between two metal spring leafs, because the opening part between metal spring leaf has the contraction elasticity of reply, metal spring leaf 41 and lower metal spring leaf 42 is made to coordinate and bending part 1 can be fastened clamping, ensure the ground connection property that pcb board 5 is good, thus meet industrial requirement.

Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.

Claims

1. a pcb board ground structure, is characterized in that, comprises grounding assembly, radiator and pcb board, wherein,

2. a kind of pcb board ground structure according to claim 1, is characterized in that, the quantity of described earthing screw is two or more.

3. a kind of pcb board ground structure according to claim 1, is characterized in that, the first bending end of described bending part is vertical with the second bending end.

4. a kind of pcb board ground structure according to claim 1, is characterized in that, described upper metal spring leaf overall U-shaped, it is opening down.