Lithium battery BMS screw auxiliary installation jig

Abstract

According to the technical scheme, the lithium battery BMS screw auxiliary installation jig comprises a base and a cover plate, a containing area is formed in the base, the cover plate is connected with the edge of the rear side of the base through a hinge, a plurality of guide openings are formed in the plate face of the cover plate, and the guide openings are connected with the base through a hinge. The edge of the cover plate is further provided with a plurality of positioning holes and upper magnetic attraction pieces, and the specially-arranged cover plate can avoid the possibility that the BMS is damaged in the installation process.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a lithium battery BMS screw auxiliary installation fixture. Background Art

[0002] Lithium-ion batteries have the advantages of high operating voltage, long cycle life, high energy density and no pollution, and are widely used, which has aroused people's focus on battery safety issues. During the assembly and production of lithium-ion battery BMS, there is a risk of damaging BMS components during the fixing of BMS, which is not easy to detect, thus affecting the safety performance and service life of the battery.

[0003] The existing production technology generally uses an electric screwdriver with screws to directly fix the BMS. During this period, the workers need to observe the points with their naked eyes. Once the operator is tired or distracted, it is impossible to accurately align the installation holes. When doing vertical plane installation, it will cause BMS damage, BMS screw thread damage, thread slippage, etc.

[0004] In addition, there are many tiny electronic components on the BMS. During the assembly process, once small mechanical damage occurs, it is difficult for humans to detect and cannot be detected immediately, which will lead to failure during later use. Summary of the invention

[0005] The purpose of the utility model is to provide a lithium battery BMS screw auxiliary installation fixture to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lithium battery BMS screw auxiliary installation fixture, comprising a base and a cover plate, the base is provided with a placement area, the cover plate is connected to the rear edge of the base through a hinge, a plurality of guide openings are provided on the surface of the cover plate, and a plurality of positioning holes and an upper magnetic sheet are also provided on the edge of the cover plate.

[0007] Preferably, a picking groove is provided on the front edge of the base, and a plurality of positioning pins and a lower magnetic sheet are also provided on the front edge of the base, the positioning holes correspond to the positioning pins, and the upper magnetic sheet corresponds to the lower magnetic sheet.

[0008] Preferably, a control switch is provided on the rear edge of the base, and the control switch is connected to the electric screwdriver via a wire.

[0009] Preferably, a relief opening is also provided on the plate surface of the cover plate.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model is easy and fast to operate and has low cost;

[0011] The special cover can avoid the possibility of damaging the BMS during installation;

[0012] The screws are inserted from the guide port to reduce problems such as thread damage and thread slippage.

[0013] The base and the cover are connected by hinges, which makes it easy to replace the cover, so that different covers can be used to adapt to the BMS holes of different products, which is low-cost and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model when the cover is closed;

[0015] Figure 2 It is a structural schematic diagram of the utility model when the cover is opened. DETAILED DESCRIPTION

[0016] 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 in 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.

[0017] See also Figure 1 The utility model provides a technical solution: a lithium battery BMS screw auxiliary installation fixture, including a base 1 and a cover plate 2,

[0018] A placement area 11 is provided on the base 1 for placing the BMS and the panel to be assembled;

[0019] A taking groove 12 is provided on the front edge of the base 1 to facilitate the subsequent taking of the semi-finished product;

[0020] The cover plate 2 is connected to the rear edge of the base 1 through the hinge 21, so that the cover plate can be opened and closed, thereby using the cover plate to avoid the possibility of damaging the BMS during the installation process;

[0021] In addition, by removing the hinge, the cover can be easily replaced, so that different covers can be used to adapt to the BMS holes of different products;

[0022] The cover plate 2 is provided with a plurality of guide openings 22 for placing screws, and the guide openings are provided to correspond to the screw holes on the BMS to be assembled;

[0023] A plurality of positioning holes 23 and an upper magnetic sheet 24 are further provided on the edge of the cover plate 2.

[0024] A plurality of positioning pins 13 and a lower magnetic sheet 14 are further provided on the front edge of the base 1.

[0025] When the cover is closed, the positioning hole 23 corresponds to the positioning pin 13, and the upper magnetic sheet 24 corresponds to the lower magnetic sheet 14, thereby ensuring that the cover is tightly fitted to the base.

[0026] In this embodiment, a control switch 3 is provided at the rear edge of the base 1, and the control switch 3 is connected to the electric screwdriver (the electric screwdriver itself has an independent switch) through a wire. When the cover is opened, the control switch 3 is raised. When the cover is closed (magnets are attracted), the control switch 3 is flattened (i.e. pressed) by the cover, and the electric screwdriver can be started.

[0027] In the above embodiment, each electric screwdriver has an independent switch;

[0028] If the control switch 3 is not pressed, the electric screwdriver will not respond when the independent switch of the electric screwdriver is pressed;

[0029] If the control switch 3 is pressed, the electric screwdriver can only be started when the independent switch of the electric screwdriver is pressed.

[0030] In this embodiment, a avoidance opening 25 may be further provided on the plate surface of the cover plate 2 to prevent the cover plate from hitting the protruding electronic components.

[0031] The specific operation method of installing the battery BMS screw auxiliary installation fixture provided by the utility model is as follows:

[0032] 1. First open the cover;

[0033] 2. Then place the BMS and panel to be assembled into the placement area of ​​the base;

[0034] 3. Close the cover again, the positioning pin is in place and the magnet is attracted;

[0035] 4. After the cover is closed, the control switch is pressed down by the cover, and the electric screwdriver can be started;

[0036] 5. At this time, the staff uses an electric screwdriver to pick up a screw and align it with the guide port, drives the independent switch on the electric screwdriver, and screws the screw in from the guide port to fix the BMS to be assembled and the panel together;

[0037] 6. Finally, open the cover, and the control switch 3 loses pressure and pops up to close. At this time, the electric screwdriver is turned off;

[0038] 7. The staff takes out the fixed semi-finished product from the taking slot and transfers it to the next process.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery BMS screw auxiliary installation fixture, comprising a base (1) and a cover plate (2), wherein the base (1) is provided with a placement area (11), characterized in that: The cover plate (2) is connected to the rear edge of the base (1) via a hinge (21); a plurality of guide openings (22) are provided on the surface of the cover plate (2); and a plurality of positioning holes (23) and an upper magnetic attraction sheet (24) are also provided on the edge of the cover plate (2).

2. A lithium battery BMS screw auxiliary installation fixture according to claim 1, characterized in that: The front edge of the base (1) is provided with a taking groove (12), and the front edge of the base (1) is also provided with a plurality of positioning pins (13) and a lower magnetic attraction sheet (14), the positioning holes (23) correspond to the positioning pins (13), and the upper magnetic attraction sheet (24) corresponds to the lower magnetic attraction sheet (14).

3. A lithium battery BMS screw auxiliary installation fixture according to claim 1, characterized in that: A control switch (3) is provided on the rear edge of the base (1), and the control switch (3) is connected to the electric screwdriver via a wire.

4. A lithium battery BMS screw auxiliary installation fixture according to claim 1, characterized in that: The cover plate (2) is also provided with an escape opening (25) on the plate surface.

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