Jig and gluing structure for gluing PCB (printed circuit board) of explosion-proof battery

Abstract

The utility model discloses a jig and a gluing structure for gluing a PCB (Printed Circuit Board) of an explosion-proof battery, which adopt a foam jig, the foam jig is easy to process, the problem that CNC (Computer Numerical Control) processing of a bakelite jig is difficult is solved, and compared with the bakelite jig, the cost is saved by more than 90%; the foam jig has good flexibility, the sealing performance of the foam jig and the PCBA board is good, the problem that glue sealing is difficult is solved, and the yield is improved to 98% or above. The foam jig is light, small, exquisite, economical and practical, the problem that the space requirement of a bakelite jig is large is solved, and compared with the bakelite jig, the use space is reduced by about 50%; the foam jig has the advantages of being fast in pressure-sensitive fixation, convenient to use and the like, can be assembled and used on a PCBA together, does not need to be disassembled, and compared with a bakelite jig, the foam jig can enhance the adhesive force of anti-explosion glue and a board, and solves the problem that the anti-explosion glue is prone to falling off.

Description

Technical Field

[0001] The utility model belongs to the technical field of printed circuit board assembly, and in particular relates to a jig and a gluing structure for gluing explosion-proof battery PCB boards. Background Art

[0002] At present, more and more batteries and electrical products are used in flammable and explosive places such as mines, oil wells, and gas stations. In order to increase the explosion-proof performance of the battery, glue is injected into the internal space of the product or the PCB board is glued.

[0003] PCBA explosion-proof glue injection uses hard glue jigs such as bakelite. After glue injection, the glue jig needs to be fixed and placed with a special clamp to wait for the glue to solidify, and then the jig is removed to complete the glue application. This results in a huge amount of jigs and clamps used after glue application during mass production, and the placement space occupies a large amount, making it difficult to mass produce; secondly, the use of existing bakelite glue injection jigs requires bakelite CNC processing, and the cost of a single jig is high; furthermore, since the drying time of the explosion-proof glue is 20-24 hours, the use of existing bakelite glue injection jigs requires the production line to provide 24-hour capacity jig turnover according to the production capacity, which requires expensive jig costs, and the bakelite jig is heavy and cannot be stacked too high, occupying a large space; finally, the existing bakelite glue injection jig has poor fit with PCBA, which is prone to glue leakage and has a high defect rate. Utility Model Content

[0004] The problem to be solved by the utility model is to provide a jig for gluing explosion-proof battery PCB boards, which is light, compact, low-cost, and can solve the problems of large space occupation, difficult sealing, and easy falling of explosion-proof glue, and also provides an explosion-proof battery PCB board gluing structure using the jig.

[0005] In order to solve the above technical problems, the first aspect of the utility model provides a jig for gluing explosion-proof battery PCB boards, which includes a jig body, the jig body is made of foam, and the jig body is provided with at least one injection cavity matching the components to be injected with glue on the explosion-proof battery PCB board, the cavity wall of the injection cavity is separated from the components to be injected with glue, and the depth of the injection cavity is greater than the height of the components to be injected with glue.

[0006] In addition, the second aspect of the utility model provides an explosion-proof battery PCB board gluing structure, which includes a PCB board, explosion-proof glue and the jig for gluing the explosion-proof battery PCB board as described above, the bottom surface of the jig is bonded to the board surface of the PCB board, and the jig surrounds the components to be injected with glue to form a glue injection cavity, the cavity wall of the glue injection cavity and the space separated by the components to be injected with glue are filled with the explosion-proof glue, and the explosion-proof glue covers the top of the components to be injected with glue.

[0007] Compared with the prior art, the jig and glue-spreading structure for gluing explosion-proof battery PCB boards of the present invention have the following beneficial effects:

[0008] The utility model adopts a foam jig, which is easy to process, and solves the problem of difficult CNC processing of bakelite jigs. Compared with bakelite jigs, the cost is saved by more than 90%; the foam jig has good flexibility and good adhesion with the PCBA board surface, which solves the problem of difficult sealing, and the yield is improved to more than 98%; the foam jig is light, compact, economical and affordable, and solves the problem of large space requirements of bakelite jigs. Compared with bakelite jigs, the use space is reduced by about 50%; the foam jig has the characteristics of rapid pressure-sensitive fixation and easy use, and can be assembled and used together on the PCBA without disassembling the jig. Compared with the bakelite jig, it can enhance the adhesion of the explosion-proof glue and the board, and solves the problem of easy falling of the explosion-proof glue. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0010] Figure 1 This is a schematic diagram of the structure of the gluing fixture and the gluing structure of the explosion-proof battery PCB board provided by the embodiment of the utility model before the gluing;

[0011] Figure 2 It is a structural schematic diagram of a gluing jig for an explosion-proof battery PCB board and a gluing structure after gluing provided by an embodiment of the utility model.

[0012] Markings in the figure:

[0013] 1. Jaw body; 2. Glue injection cavity; 3. PCB board; 4. Components to be injected with glue; 5. Explosion-proof glue. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate the orientation or position relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0016] like Figure 1 and Figure 2 Shown is a preferred embodiment of the utility model.

[0017] A jig for gluing an explosion-proof battery PCB board comprises a jig body 1, wherein the jig body 1 is made of foam, and the jig body 1 is provided with at least one glue injection cavity 2 matching a component 4 to be injected with glue on an explosion-proof battery PCB board 3, wherein the cavity wall of the glue injection cavity 2 is separated from the components 4 to be injected with glue, and the depth of the glue injection cavity 2 is greater than the height of the components 4 to be injected with glue.

[0018] Therefore, according to the jig for gluing explosion-proof battery PCB boards according to the embodiment of the utility model, a foam jig is used. The foam jig is easy to process, which solves the problem of difficult CNC processing of bakelite jigs. Compared with bakelite jigs, the cost is saved by more than 90%; the foam jig has good flexibility and good adhesion to the PCBA board surface, which solves the problem of difficult sealing, and the yield is improved to more than 98%; the foam jig is light, compact, economical and affordable, which solves the problem of large space requirements of bakelite jigs. Compared with bakelite jigs, the use space is reduced by about 50%; the foam jig has the characteristics of fast pressure-sensitive fixation and easy use, and can be assembled and used together on the PCBA without disassembling the jig. Compared with the bakelite jig, it can enhance the adhesion between the explosion-proof glue and the board and solve the problem of easy falling of the explosion-proof glue.

[0019] In addition, the utility model also provides a structure for applying glue to an explosion-proof battery PCB board, which includes a PCB board 3, an explosion-proof glue 5, and the jig for applying glue to an explosion-proof battery PCB board as described above, the bottom surface of the jig is bonded to the board surface of the PCB board 3, the jig is surrounded around the components 4 to be injected with glue to form a glue injection cavity 2, the cavity wall of the injection cavity 2 and the space around the components 4 to be injected with glue are filled with the explosion-proof glue, and the explosion-proof glue covers the top of the components 4 to be injected with glue. Since the explosion-proof battery PCB board gluing structure includes the jig for applying glue to an explosion-proof battery PCB board as described above, it has all the beneficial effects of the jig for applying glue to an explosion-proof battery PCB board, which will not be repeated here.

[0020] In the description of the present invention, it should be understood that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" used in the present invention should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A jig for gluing explosion-proof battery PCB boards, characterized in that: The jig body comprises a jig body, the jig body is made of foam, the jig body is provided with at least one injection cavity matching the component to be injected on the explosion-proof battery PCB board, the cavity wall of the injection cavity is separated from the components to be injected, and the depth of the injection cavity is greater than the height of the component to be injected.

2. A glue-spraying structure for explosion-proof battery PCB, characterized in that: The invention comprises a PCB board, explosion-proof glue and a jig for gluing an explosion-proof battery PCB board as claimed in claim 1, wherein the bottom surface of the jig is bonded to the board surface of the PCB board, the jig surrounds the components to be injected with glue to form a glue injection cavity, the cavity wall of the glue injection cavity and the space separated by the components to be injected with glue are filled with the explosion-proof glue, and the explosion-proof glue covers the top of the components to be injected with glue.

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