CN211744850U

CN211744850U - PCB board capable of fast tearing film

Info

Publication number: CN211744850U
Application number: CN202020368787.8U
Authority: CN
Inventors: 刘维; 张立; 吕邦红
Original assignee: Dongguan Wanjun Electronic Technology Co ltd
Current assignee: Dongguan Wanjun Electronic Technology Co ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-10-23
Anticipated expiration: 2030-03-20

Abstract

The utility model relates to a but PCB board of rapid tear film, include: the PCB comprises a PCB body and a technical edge connected with the PCB body; two opposite surfaces of one end of the technical edge, which is far away from the PCB, are respectively provided with a convex part in a protruding manner, the convex part is provided with a first end and a second end, and the end surface of the first end is flush with the end surface of the technical edge; the thickness of the boss gradually decreases in a direction from the first end toward the second end; the middle part of the protruding part is provided with a recess, and the recess and the film protective film are arranged at intervals. Above-mentioned but PCB board of rapid tear film, simple structure, convenient operation connect on the PCB body and set up the technology limit, utilize the space between sunken and the film protection film, make things convenient for the nail to insert to peel off the tear film, can improve tear film efficiency effectively, reduction in production cost guarantees product quality.

Description

PCB board capable of fast tearing film

Technical Field

The utility model relates to a but PCB board technical field of rapid tear film especially relates to a but PCB board of rapid tear film.

Background

In the PCB industry, after the surface of a PCB is treated, a film protective film is pasted on the surface of the PCB and exposure is carried out, the film protective films on two surfaces of the PCB are firstly torn off, and then the PCB can enter developing and washing equipment.

At present, equipment special for tearing off the film protection film is not arranged in the PCB industry, so that the film tearing work of the film protection film is still completed by traditional hands, a worker holds a blade to peel off the film protection film from a PCB, the efficiency is low, the phenomenon that the blade scratches the surface of the PCB is easy to happen in the film tearing action, plates are scrapped, and the production cost is seriously increased.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides a but PCB board of rapid tear film, simple structure, convenient operation can improve tear film efficiency effectively, and reduction in production cost guarantees product quality.

In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:

a quick-tear film PCB board comprising: the PCB comprises a PCB body and a technical edge connected with the PCB body; two opposite surfaces of one end of the technical edge, which is far away from the PCB, are respectively provided with a convex part in a protruding manner, the convex part is provided with a first end and a second end, and the end surface of the first end is flush with the end surface of the technical edge; the thickness of the boss gradually decreases in a direction from the first end toward the second end; the middle part of the protruding part is provided with a recess, and the recess and the film protective film are arranged at intervals.

Above-mentioned but PCB board of rapid tear film, simple structure, convenient operation connect on the PCB body and set up the technology limit, utilize the space between sunken and the film protection film, make things convenient for the nail to insert to peel off the tear film, can improve tear film efficiency effectively, reduction in production cost guarantees product quality.

In one embodiment, two opposite sides of the protruding portion are respectively provided with a chamfer.

In one embodiment, the radius of the chamfer ranges from 0.4mm to 0.6 mm.

In one embodiment, the chamfer is 0.5 mm.

In one embodiment, the length direction of the recess coincides with the direction from the first end towards the second end.

In one embodiment, two opposite surfaces of the joint of the PCB body and the technical edge are respectively provided with a V-shaped groove; the depth of the V-shaped groove is less than or equal to one third of the thickness of the PCB body.

In one embodiment, the PCB body comprises a substrate and a circuit printed on the substrate; the substrate is connected with the process edge.

In one embodiment, the two opposite ends of the substrate are respectively provided with a positioning hole, and the edge of the positioning hole is at least 3mm away from the edge of the notch of the V-shaped groove.

In one embodiment, welding rings are respectively printed at two opposite ends of the substrate, and the edge of each welding ring is at least 3mm away from the edge of the notch of the V-shaped groove.

In one embodiment, the thickness of the boss ranges from 2mm to 3 mm.

Drawings

Fig. 1 is a schematic perspective view of a PCB capable of being quickly peeled according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view taken at circle A of FIG. 1;

fig. 3 is a partial side view of the quick-tear film PCB of fig. 1.

Reference is made to the accompanying drawings in which:

10-PCB body, 11-substrate, 12-circuit, 13-positioning hole, 14-welding ring;

20-technical edge, 21-convex part, 211-first end, 212-second end, 22-chamfer and 23-concave;

30-V type groove.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 to 3, a PCB capable of being quickly peeled according to an embodiment of the present invention includes a PCB body 10 and a processing edge 20 connected to the PCB body 10.

The PCB body 10 includes a substrate 11 and a circuit 12 printed on the substrate 11. The positioning holes 13 are respectively formed in two opposite ends of the substrate 11, the positioning holes 13 are arranged at the two opposite ends of the substrate 11 in pairs, the number of each pair of positioning holes 13 is two, and the positioning holes 13 are arranged at intervals. And welding rings 14 are printed on the substrate 11 respectively corresponding to the positioning holes 13.

As shown in fig. 1, in the present embodiment, the number of the processing edges 20 is two, and the processing edges 20 are respectively connected to two opposite ends of the substrate 11, that is, the processing edges 20 are disposed adjacent to the positioning holes 13. Further, the thickness of the process edge 20 is equal to the thickness of the substrate 11. The opposite two surfaces of one end of the technical edge 20, which is far away from the substrate 11, are respectively provided with a protruding part 21 in a protruding manner, and the protruding parts 21 on the opposite two surfaces of the technical edge 20 are symmetrically arranged with respect to the center of the technical edge 20.

As shown in fig. 2 and 3, the protruding portion 21 has a first end 211 and a second end 212, and an end surface of the first end 211 is flush with an end surface of the technical edge 20. The thickness of bellying 21 is followed first end 211 orientation reduce gradually in the direction of second end 212, chamfer 22 has still been seted up respectively to the relative both sides of bellying 21, makes the edge of bellying 21 does not all produce the right angle to in film protection film better attached in the periphery of bellying 21 and not produce the bubble, guarantee the gas tightness of pad pasting.

In the present embodiment, the thickness of the protruding portion 21 ranges from 2mm to 3mm, preferably 2.5 mm. The radius of the chamfer 22 is in the range of 0.4mm to 0.6mm, preferably 0.5 mm.

A recess 23 is formed in the middle of the protruding portion 21, and the length direction of the recess 23 is the same as the direction from the first end 211 to the second end 212. During the dyestripping, because interval setting between sunken 23 and the film protection film, at this moment, the workman can directly use the nail along sunken 23 is raised the film protection film, tears the membrane, adopts the blade to tear the membrane with the tradition and compares, and convenient safety more can effectively prevent the flower of scraping to PCB board face, and quality of assurance reduces manufacturing cost, simultaneously because convenient operation can also improve dyestripping efficiency effectively.

In this embodiment, V-shaped grooves 30 are further formed on two opposite surfaces of the joint of the PCB body 10 and the process edge 20, and the width of the notch of the V-shaped groove 30 is 0.3-2mm, preferably 1 mm; the depth of the V-shaped groove 30 is less than or equal to one third of the thickness of the PCB body 10. Further, in this embodiment, the notch edge of the V-shaped groove 30 is spaced from the hole edge of the positioning hole 13 by at least 3mm, and the notch edge of the V-shaped groove 30 is spaced from the weld ring edge of the weld ring 14 by at least 3 mm. Before shipment, the PCB body 10 may be separated from the technical edge 20 by a V-shaped groove 30 to obtain a pure PCB body 10.

It will be appreciated that in other embodiments, the number of the technical edges 20 may be one, and the technical edges 20 may be connected to either end of the substrate 11 and may also function as a quick tear film.

Above-mentioned but PCB board of rapid tear film, simple structure, convenient operation connect on the PCB board body 10 and set up technology limit 20, utilize the space between sunken 23 and the film protection film, make things convenient for the nail to insert and peel off the tear film, can improve tear film efficiency effectively, reduction in production cost guarantees product quality.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A PCB board capable of being quickly stripped is characterized by comprising: the PCB comprises a PCB body and a technical edge connected with the PCB body; two opposite surfaces of one end of the technical edge, which is far away from the PCB, are respectively provided with a convex part in a protruding manner, the convex part is provided with a first end and a second end, and the end surface of the first end is flush with the end surface of the technical edge; the thickness of the boss gradually decreases in a direction from the first end toward the second end; the middle part of the protruding part is provided with a recess, and the recess and the film protective film are arranged at intervals.

2. The PCB of claim 1, wherein the two opposite sides of the protrusion are chamfered respectively.

3. The rip-tab PCB of claim 2 wherein the chamfer has a radius in the range of 0.4mm to 0.6 mm.

4. A rip-stop PCB as claimed in claim 3, wherein the chamfer is 0.5 mm.

5. The rip-tab PCB of claim 1 wherein the recess has a length that is aligned with the direction from the first end toward the second end.

6. The PCB capable of being rapidly stripped according to claim 1, wherein two opposite surfaces of a joint of the PCB body and the technical edge are respectively provided with a V-shaped groove; the depth of the V-shaped groove is less than or equal to one third of the thickness of the PCB body.

7. The quick-tear PCB board of claim 6, wherein the PCB board body comprises a substrate and a circuit printed on the substrate; the substrate is connected with the process edge.

8. The PCB capable of quickly tearing the film according to claim 7, wherein the opposite ends of the base plate are respectively provided with a positioning hole, and the edge of the positioning hole is at least 3mm away from the edge of the notch of the V-shaped groove.

9. The PCB of claim 7, wherein the opposite ends of the substrate are printed with solder rings, and the edge of the solder ring is spaced from the edge of the notch of the V-shaped groove by at least 3 mm.

10. A rip-tab PCB as claimed in claim 1, wherein the projections have a thickness in the range of 2mm to 3 mm.