CN220173484U

CN220173484U - PCB grounding structure

Info

Publication number: CN220173484U
Application number: CN202321939228.8U
Authority: CN
Inventors: 王万里; 刘文亮; 向荣林
Original assignee: Jiangyin Wonder Electronic Co ltd
Current assignee: Jiangyin Wonder Electronic Co ltd
Priority date: 2023-07-21
Filing date: 2023-07-21
Publication date: 2023-12-12
Anticipated expiration: 2033-07-21

Abstract

The utility model discloses a PCB grounding structure, which is characterized by comprising a PCB board, wherein two wire through holes are arranged on the PCB board, the two wire through holes are connected through a jumper wire, a through groove is formed between the two wire through holes, and a clamping structure is connected with the jumper wire through the through groove.

Description

PCB grounding structure

Technical Field

The utility model relates to the technical field of PCB boards, in particular to a PCB grounding structure.

Background

The good grounding has a good shielding effect on the electromagnetic field, and can release a large amount of charges accumulated on the equipment shell, so that the electrostatic discharge effect is avoided. The whole printed circuit board is divided into two grounds, systematic ground and earth. If the metal shell is adopted, the whole metal shell is the earth, the ground wire of the power supply is connected with the earth, all interfaces are required to be connected with the earth, the screws are also required to be connected with the earth, and the interference entering in the EMC test is directly discharged from the system ground to the earth, so that the internal system is not interfered. For example, the grounding mode of the PCB structure on the energy-saving lamp generally adopts a screw mode, the screw is driven into the grounding hole and is connected into the metal shell outside the PCB of the energy-saving lamp, and the effects of shielding the elements on the energy-saving lamp and releasing charges are achieved. But this approach suffers from two problems: 1. the mode of installing the screw is inconvenient, the screw needs to be screwed into the grounding hole, and time is consumed in installation; 2. for companies that need to produce a large number of energy-saving lamps, grounding with screws has a problem of high product cost.

Disclosure of Invention

The present utility model is directed to solving the above-mentioned problems, and provides a PCB grounding structure with low cost

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a PCB grounding structure, includes the PCB board, be equipped with two wire passing holes on the PCB board, two wire passing holes pass through the jumper wire and connect, set up logical groove between two wire passing holes, the joint structure passes logical groove links to each other with the jumper wire, the joint structure other end meets with the shell.

The via hole may also be a solder hole and the PCB is a printed circuit board.

Further preferable technical scheme has, the joint structure is one of U type structure or V type structure, the joint structure includes the bayonet socket that forms in the middle of two cards and the card, the bayonet socket of joint structure and jumper wire size looks adaptation, the centre of joint structure touches with the jumper wire.

The further preferable technical scheme is that the two cards of the clamping structure are horizontally arranged.

The further preferable technical scheme is that the two cards of the clamping structure are arranged in a staggered mode.

The further preferable technical scheme is that the through groove is rectangular, and the through groove is obliquely arranged between the two wire passing holes.

In order to prevent the jumper from loosening and falling off, a further preferable technical scheme is that one side of the two clamping pieces, which is close to the bayonet, is provided with at least one protrusion.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the jumper wire is connected with the wire through hole firstly and then is grounded in contact with the clamping structure, so that the original screw grounding mode is replaced, under the same material quality, the manufacturing cost of the clamping structure is lower than the manufacturing cost of the clamping structure grounded by screws by 0.2 yuan on average for application on the PCB of the energy-saving lamp, and for enterprises needing mass production of the energy-saving lamp, the annual energy-saving lamp yield of the enterprises is about 100 ten thousand, the cost of 20 ten thousand can be saved, and the grounding mode and the clamping structure save a large amount of cost; in addition, the installation mode of the grounding mode can press the jumper wire into the clamping structure during installation, so that the trouble of driving the screw into the PCB is avoided, the installation time is saved, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic diagram of a structure of the clamping structure of the present utility model;

FIG. 4 is a second schematic diagram of the structure of the fastening structure of the present utility model;

in the figure: a PCB board; 2. a clamping structure; 3. a jumper wire; 4. a housing; 5. a wire through hole; 6. a through groove; 7. a bayonet; 8. a card; 9. a protrusion.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

As shown in fig. 1-3, a PCB grounding structure includes a PCB board 1, two wire passing holes 5 are provided on the PCB board 1, specifically, the two wire passing holes 5 are provided on one side of the PCB board, and the two wire passing holes 5 are arranged close to each other, the two wire passing holes 5 are connected by a jumper wire 3, a through slot 6 is provided between the two wire passing holes 5, specifically, the through slot 6 is rectangular, the through slot 6 is obliquely provided between the two wire passing holes 5, is located below the jumper wire 3 and is staggered with the jumper wire 3, the clamping structure 2 passes through the through slot 6 to be connected with the jumper wire 3, specifically, the connection mode is clamping, and the other end of the clamping structure 2 is grounded with the housing 4. Specifically, the clamping structure 2 is a U-shaped structure, the clamping structure 2 includes two cards 8 and a bayonet 7 formed in the middle of the two cards 8, the bayonet 7 of the clamping structure 2 is matched with the size of the jumper wire 3, the middle of the clamping structure 2 is in touch and clamping with the jumper wire 3, the two cards 2 of the U-shaped structure of the clamping structure 2 are horizontally arranged, the clamping structure 2 is made of metal, generally copper or aluminum, in the embodiment, the clamping structure 2 is made of copper, in order to prevent the jumper wire 3 from loosening, the clamping structure 2 falls off, one sides, close to the bayonet 7, of the two cards 8 of the clamping structure 2 are provided with at least one protrusion 9, and in the embodiment, the protrusion 9 is provided with one side 2 and 4 protrusions in total.

Example 2

As shown in fig. 1-3, a PCB grounding structure includes a PCB board 1, two wire passing holes 5 are provided on the PCB board 1, specifically, the two wire passing holes 5 are provided on one side of the PCB board, and the two wire passing holes 5 are arranged close to each other, the two wire passing holes 5 are connected by a jumper wire 3, a through slot 6 is provided between the two wire passing holes 5, specifically, the through slot 6 is rectangular, the through slot 6 is obliquely provided between the two wire passing holes 5, is located below the jumper wire 3 and is staggered with the jumper wire 3, the clamping structure 2 passes through the through slot 6 to be connected with the jumper wire 3, and the other end of the clamping structure 2 is grounded with the housing 4. Specifically, the clamping structure 2 is a U-shaped structure, the clamping structure 2 includes two cards 8 and a bayonet 7 formed in the middle of the two cards 8, the bayonet 7 of the clamping structure 2 is matched with the size of the jumper wire 3, the middle of the clamping structure 2 is in touch and clamping with the jumper wire 3, the two cards 2 of the U-shaped structure of the clamping structure 2 are arranged in a staggered manner, the clamping structure is made of metal, generally copper or aluminum, in the embodiment, the clamping structure 2 is made of copper, in order to prevent the jumper wire 3 from loosening, the clamping structure 2 falls off, one sides, close to the bayonet 7, of the two cards 8 of the clamping structure 2 are provided with at least one protrusion 9, and in the embodiment, the protrusion 9 is provided with one side 2 and 4 protrusions in total.

Example 3

As shown in fig. 4, the difference between example 3 and example 1 is that: the engaging structure 2 is a V-shaped structure, and the protrusions 9 are provided with 1 on one side and 2 protrusions in total.

Example 4

The difference between example 4 and example 2 is that: the engaging structure 2 is a V-shaped structure, and the protrusions 9 are provided with 1 on one side and 2 protrusions in total.

According to the utility model, the jumper wire is connected with the wire through hole firstly and then is grounded in contact with the clamping structure, so that the original screw grounding mode is replaced, under the same material quality, the manufacturing cost of the clamping structure is lower than the manufacturing cost of the clamping structure grounded by screws by 0.2 yuan on average for application on the PCB of the energy-saving lamp, and for enterprises needing mass production of the energy-saving lamp, the annual energy-saving lamp yield of the enterprises is about 100 ten thousand, the cost of 20 ten thousand can be saved, and the grounding mode and the clamping structure save a large amount of cost; in addition, the installation mode of the grounding mode can press the jumper wire into the clamping structure during installation, so that the trouble of driving the screw into the PCB is avoided, the installation time is saved, and the production efficiency is improved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a PCB grounding structure, its characterized in that includes the PCB board, be equipped with two wire passing holes on the PCB board, two wire passing holes pass through the wire jumper and connect, set up logical groove between two wire passing holes, the joint structure passes logical groove links to each other with the wire jumper, the joint structure other end meets with the shell.

2. The PCB grounding structure of claim 1, wherein the clamping structure is one of a U-shaped structure or a V-shaped structure, the clamping structure comprises two cards and a bayonet formed between the two cards, the bayonet of the clamping structure is matched with the jumper in size, and the middle of the clamping structure is contacted with the jumper.

3. The PCB grounding structure of claim 2, wherein two cards of the snap-fit structure are disposed horizontally.

4. The PCB grounding structure of claim 2, wherein the two cards of the snap-fit structure are staggered.

5. The PCB grounding structure of claim 1, wherein the through slot is rectangular, and the through slot is obliquely arranged between two via holes.

6. A PCB grounding structure according to claim 2, wherein the two cards are each provided with at least one protrusion on a side thereof adjacent to the bayonet.