CN220191124U

CN220191124U - Device for preventing functional holes of PCB from being blocked

Info

Publication number: CN220191124U
Application number: CN202320928027.1U
Authority: CN
Inventors: 宋占国
Original assignee: Guangzhou Synthetic Electronic Products Co ltd
Current assignee: Guangzhou Synthetic Electronic Products Co ltd
Priority date: 2023-04-22
Filing date: 2023-04-22
Publication date: 2023-12-15
Anticipated expiration: 2033-04-22

Abstract

The utility model provides a device for preventing a PCB board functional hole from being blocked, which comprises a needle plate, wherein a plurality of fixed positions are arranged on the needle plate, and the device also comprises a detection needle, the detection needle is connected to the fixed positions and is detachably fixed on the needle plate, the length of the detection needle protruding out of the needle plate is greater than or equal to the thickness of an external PCB board, and a positioning structure for positioning the external PCB board is arranged on the needle plate; the fixing position is a fixing hole, and the detection needle penetrates through the fixing hole; the fixing holes are formed in a plurality of parts; the detection plate is provided with a detection surface on one side where the detection needle protrudes, a penetrating surface on the other side, the fixing holes are arranged in a step shape, and the diameter of each fixing hole on the detection surface is larger than that of each fixing hole on the penetrating surface; the device simple structure, and can be applicable to the PCB board of multiple different models.

Description

Device for preventing functional holes of PCB from being blocked

Technical Field

The utility model relates to the field of PCB manufacturing equipment, in particular to a device for preventing functional holes of a PCB from being blocked.

Background

The PCB is a printed circuit board, also known as a printed circuit board, which is a provider of electrical connections for electronic components. The PCB board can be divided into a single panel, a double panel, a four-layer board, a six-layer board and other multi-layer circuit boards according to the layer number of the circuit boards. The current circuit board mainly comprises the following components: a circuit and a drawing (Pattern), wherein the circuit is used as a conducting tool between original elements, and a large copper surface is designed in design to be used as a grounding and power supply layer, and the circuit and the drawing are made simultaneously; dielectric layers (Dielectric) for maintaining insulation between the wiring and the layers, commonly referred to as substrates; holes (Through holes) which allow two or more levels of lines to be conducted to each other, larger holes being used as part inserts, and non-Through holes (nphs) being commonly used for surface mounting and positioning, and for fixing screws during assembly.

The PCB board manufacturing process is as follows: 1. a printed circuit board; 2. cutting a copper-clad plate, and manufacturing a circuit board by using a photosensitive plate; 3. pretreating a copper-clad plate; 4. transferring the circuit board; 5. corroding the circuit board and reflowing the welding machine; 6. drilling a circuit board; 7. pretreatment of a circuit board; 8. and welding the electronic component. The electronic components on the board are welded and electrified; 9. and the PCB is manufactured.

The finished product function and appearance detection are carried out on the processed PCB; sending the product into a packaging workshop for vacuum packaging and delivering to a customer; the surface tin spraying treatment makes it difficult for customers to insert components because of the plugging of the holes by the individual functions Kong Xizha.

Disclosure of Invention

Based on this, it is necessary to provide a simple and useful device for preventing the functional holes of the PCB from being blocked.

The utility model provides a device for preventing a PCB functional hole from being blocked, which comprises a needle plate, wherein a plurality of fixed positions are arranged on the needle plate, the device also comprises a detection needle, the detection needle is connected to the fixed positions and detachably fixed on the needle plate, the length of the detection needle protruding out of the needle plate is greater than or equal to the thickness of an external PCB, and a positioning structure for positioning the external PCB is arranged on the needle plate.

Preferably, the fixing position is a fixing hole, and the detection needle penetrates through the fixing hole; the fixing holes are formed in a plurality of portions.

Preferably, one side of the needle plate with the protruding detection needle is a detection surface, the other side of the needle plate is a penetrating surface, the fixing holes are arranged in a step shape, and the diameter of each fixing hole on the detection surface is larger than that of each fixing hole on the penetrating surface.

Preferably, the detection needle comprises a needle body, a plug and a fixing piece, wherein the plug is fixedly connected to the tail of the needle body, the needle body penetrates through the fixing hole, and the fixing piece fixes the needle body.

Preferably, the fixing position is a fixing groove, and the detection needle is adsorbed and fixed in the fixing groove.

Preferably, the detection needle comprises a needle body and a plug, the needle body is fixedly connected with the plug, and the plug is fixed in the fixing groove through magnetic adsorption.

Preferably, the fixing positions are arranged in an array; or,

the fixing positions are arranged corresponding to the functional holes of the PCB to be detected.

Preferably, the needle plate is provided with a positioning structure, the positioning structure protrudes out of the needle plate, the positioning structure is higher than the detecting needle, a detecting space is formed between the positioning structures, and at least part of the detecting needle is located in the detecting space.

Preferably, the positioning structure comprises a plurality of positioning blocks, the positioning blocks are fixed on the needle plate in a dispersed manner, and the space surrounded by the positioning blocks is an accommodating space of the external PCB.

Preferably, the positioning block is detachably fixed on the fixed position of the needle plate.

The device for preventing the functional holes of the PCB from being blocked has the advantages of simple structure, convenient use and suitability for various types of PCBs.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments of the utility model, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the utility model.

Fig. 1 is a schematic structural view of a device for preventing functional holes of a PCB board from being blocked according to a preferred embodiment of the present utility model;

fig. 2 is a positioning structure of another embodiment of the apparatus for preventing blockage of a functional hole of a PCB in fig. 1.

In the figure: 1. a needle plate; 11. a fixing hole; 12. a fixing groove; 2. a detection needle; 21. a needle body; 22. a plug; 23. a fixing member; 3. and a positioning structure.

Detailed Description

The following detailed description of the present utility model is provided in connection with the accompanying drawings and specific embodiments so that those skilled in the art may better understand the present utility model and practice it, but the examples are not to be construed as limiting the present utility model.

Referring to fig. 1 and 2, an embodiment of the present utility model provides a device for preventing functional holes of a PCB from being blocked, which includes a needle plate 1, and a plurality of fixing positions are provided on the needle plate 1, and specifically, the fixing positions may be fixing grooves or fixing holes 11 or be a position having suction force. The device also comprises a detection needle 2, wherein the detection needle 2 is connected to the fixed position, the detection needle 2 is detachably fixed on the needle plate 1, and the detection needle 2 is removed and then fixed at other positions of the needle plate 1, so that the detection needle is suitable for different PCB boards. The length that detects needle 2 protrusion in faller 1 is greater than or equal to outside PCB board thickness makes the detection needle 2 can run through the functional hole of PCB board, ejects the spouting tin in the functional hole to make the PCB board become the conforming article, be provided with the location structure 3 that is used for fixing a position outside PCB board on the faller 1 for restrict outside PCB board's concrete position, conveniently make detection needle 2 aim at the functional hole.

In a preferred embodiment, the fixing location is a fixing hole 11, and in particular, the fixing hole 11 may be circular, triangular, diamond-shaped or regular polygon. The detection needle 2 penetrates the fixing hole 11, thereby fixing the detection needle 2 in the fixing hole 11; the fixing holes 11 are provided with a plurality of fixing holes, so that a plurality of detection needles 2 can be fixed, and meanwhile, the fixing holes 11 are reserved for replacing the positions of the detection needles 2.

In a preferred embodiment, the needle plate has a protruding side of the detecting needle 2 as a detecting surface, the other side is a penetrating surface, the fixing hole 11 is arranged in a step shape, the diameter of the fixing hole 11 on the detecting surface is larger than that of the penetrating surface, that is, the edge of the fixing hole 11 is provided with an annular boss for abutting against the fixing piece 23 of the detecting needle 2, and the fixing piece 23 of the detecting needle 2 is inlaid in the fixing groove 12, so that the upper surface of the fixing piece 23 is not higher than the height of the needle plate 1 after the detecting needle 2 is fixed.

In the preferred embodiment, the detecting needle 2 includes a needle body 21, a plug 22 and a fixing member 23, and specifically, the free end of the needle body 21 has a smaller diameter, is needle-shaped, and is convenient to penetrate through a functional hole of the PCB board. The plug 22 is fixedly connected to the tail of the needle body 21, the needle body 21 penetrates through the fixing hole 11, the fixing piece 23 fixes the needle body 21, the detachable and fixed connection of the detection needle 2 to the needle plate 1 is realized, and the detachment and the fixation are convenient.

In another preferred embodiment, the fixing position is a fixing groove 12, and the detecting needle 2 is fixed in the fixing groove 12 by adsorption. Specifically, the magnet is fixed in the fixing groove 12, and at least the plug 22 of the detection needle 2 is made of a material that can be attracted by the magnet, or the plug 22 of the detection needle 2 is also magnetic and can be attracted to the magnet in the fixing groove 12. The detection needle 2 comprises a needle body 21 and a plug 22, the needle body 21 and the plug 22 are fixedly connected, and the plug 22 is fixed in the fixed groove 12 through magnetic adsorption. The detection needle 2 is fixed in the fixed groove 12 through adsorption, so that the position of the needle 2 can be detected more conveniently and better.

In the preferred embodiment, the fixing positions are arranged in an array, so that the detection needle 2 can be selectively fixed on the required fixing positions, and the device can adapt to different types of PCB boards. In another embodiment, the fixing position is set corresponding to a functional hole of the PCB board to be detected.

In the preferred embodiment, the needle plate 1 is provided with a positioning structure 3, the positioning structure 3 protrudes from the needle plate 1, and the positioning structure is higher than the detecting needle 2, so that an external PCB board can be conveniently placed into the detecting space. A detection space is formed between the positioning structures 3, at least part of the detection needles 2 are located in the detection space, and if the smaller PCB is detected due to different sizes of the PCB, some fixing holes 11 or the detection needles 2 cannot be used and are idle.

In a preferred embodiment, the positioning structure 3 includes a plurality of positioning blocks, the plurality of positioning blocks are fixed on the needle board 1 in a dispersed manner, and a space surrounded by the plurality of positioning blocks is an external accommodating space of the PCB board. In particular, the positioning block may be cylindrical, semi-cylindrical or gas-shaped.

In a preferred embodiment, the positioning block is detachably fixed on the fixing position of the needle plate 1, specifically, the positioning block also has the same fixing piece 23 and plug 22 as the detecting needle 2, or the positioning block also has the same magnetic attraction piece as the detecting needle 2 for fixing the positioning block on the needle plate 1 through the fixing position.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims

1. The utility model provides a device for preventing PCB board function hole jam, its characterized in that, includes the faller, be provided with a plurality of fixed positions on the faller, still include the detection needle, the detection needle is connected on the fixed position, just the detection needle detachably fixes on the faller, the detection needle protrusion in the length of faller is greater than or equal to the thickness of outside PCB board, be provided with the location structure that is used for fixing a position outside PCB board on the faller.

2. The apparatus for preventing a functional hole of a PCB from being blocked as claimed in claim 1, wherein the fixing position is a fixing hole through which the sensing needle penetrates; the fixing holes are formed in a plurality of portions.

3. The device for preventing plugging of functional holes of a PCB according to claim 2, wherein one side of the needle plate having the protruding detecting needle is a detecting surface, the other side is a penetrating surface, the fixing holes are arranged in a stepped shape, and the diameter of the fixing holes on the detecting surface is larger than the diameter of the fixing holes on the penetrating surface.

4. A device for preventing a functional hole of a PCB from being blocked as set forth in claim 3, wherein the inspection pin includes a pin body, a cap fixedly connected to a tail of the pin body, the pin body penetrating through the fixing hole, and a fixing member fixing the pin body.

5. The apparatus for preventing a functional hole of a PCB from being blocked as claimed in claim 1, wherein the fixing position is a fixing groove in which the sensing needle is sucked and fixed.

6. The apparatus for preventing functional holes of a PCB of claim 5, wherein the sensing needle comprises a needle body and a cap fixedly connected, the cap being fixed in the fixing groove by magnetic adsorption.

7. The apparatus for preventing plugging of PCB functional holes of claim 1, wherein the fixing sites are arranged in an array; or,

8. The device for preventing functional holes of a PCB from being blocked as claimed in claim 1, wherein a positioning structure is provided on the needle plate, the positioning structure protrudes from the needle plate, and the positioning structure is higher than the height of the detecting needle, a detecting space is formed between the positioning structures, and at least a part of the detecting needle is located in the detecting space.

9. The device for preventing functional holes of a PCB from being blocked as claimed in claim 8, wherein the positioning structure comprises a plurality of positioning blocks, the plurality of positioning blocks are dispersedly fixed on the needle plate, and a space surrounded by the plurality of positioning blocks is an external accommodating space of the PCB.

10. The apparatus for preventing a functional hole of a PCB from being blocked as claimed in claim 9, wherein the positioning block is detachably fixed to a fixing position of the needle plate.