Screw-hole-free packaging device for battery pack fault diagnosis device

Abstract

The utility model discloses a screw-hole-free packaging device for a battery pack fault diagnosis device, which comprises a cover plate main body with an L-shaped cross section, a connecting panel and a fixed panel are respectively formed on two surfaces outside the cover plate main body, the connecting panel is provided with a wiring hole and a plug-in test hole, and the fixed panel is provided with a plug-in test hole. The bottom of the fixing panel and the bottom of the connecting panel are each provided with a fixing bayonet used for being connected with fixing clamping holes in the two sides of the interior of the battery pack shell in a clamped mode, the cover plate body is connected with the fixing clamping holes in a matched and clamped mode through the fixing bayonets, and the diagnosis device body is buckled in the battery pack shell. The battery pack fault diagnosis device solves the problems that in the prior art, the battery pack fault diagnosis device and the battery pack are complex in assembly process, short in service life due to fixed connection and easy to damage.

Description

Technical Field

[0001] The utility model relates to the field of battery assembly structures, in particular to a screw-free packaging device for a battery pack fault diagnosis device. Background Art

[0002] In fields such as electric vehicles, battery pack fault diagnosis systems are crucial for comprehensively diagnosing battery failures. These systems typically reside at the front and rear ends of a battery pack assembly, connecting one battery pack in parallel with other packs. Their primary structure consists of a bracket that fits within the battery pack enclosure and a diagnostic device mounted on it.

[0003] Current brackets rely on either bonding to the inside of the battery pack enclosure or punching holes in the enclosure and bracket for assembly. Adhesive assembly is susceptible to adhesive aging and high temperatures, leading to loss of adhesion. Punching reduces the structural strength of the enclosure and bracket, making the assembly process cumbersome and creating the risk of cracking.

[0004] In view of this, the present technical solution proposes a screw-free packaging device for a battery pack fault diagnosis device, which adopts a one-time snap assembly structure that can be performed by hand, does not have holes, and does not use adhesive connection methods. On the basis of a simple assembly process, it has high-strength and stable connections. Multiple test, plug-in and other holes are set to meet various wiring requirements. The overall structure is simple and the service life is long. Summary of the Invention

[0005] The technical solution of this utility model aims to solve, at least to a certain extent, one of the technical problems in the related art. To this end, the main purpose of this utility model is to provide a screwless packaging device for a battery pack fault diagnosis device, aiming to solve the problems of the prior art battery pack fault diagnosis device and battery pack, such as the complex assembly process, short fixed connection life, and easy damage.

[0006] To achieve the above-mentioned purpose, the present invention provides a screw-free packaging device for a battery pack fault diagnosis device, comprising a cover plate body with an L-shaped cross section,

[0007] The outer two sides of the cover body are respectively formed with a connection panel and a fixing panel.

[0008] The connection panel is provided with wiring holes and plug-in test holes.

[0009] The bottom of the fixing panel and the connecting panel are both provided with fixing bayonet holes for engaging with the fixing bayonet holes on both sides of the battery pack housing.

[0010] The cover body is engaged with the fixing clamping hole through the matching clamping of the fixing clamping port, so that the diagnostic device body is buckled into the battery pack shell.

[0011] As a further solution of the present invention, the connection panel is further provided with a wire winding post for storing and fixing the wires after connection.

[0012] As a further solution of the present invention, the connection panel is further provided with a label slot for detachable and replaceable labels.

[0013] As a further solution of the present invention, a handle is provided on the outside of the cover body for facilitating prying and opening the cover.

[0014] As a further solution of the present invention, the inner wall of the cover plate body is provided with reinforcing ribs.

[0015] As a further solution of the present invention, the cover plate body is an integrally cast ammonium polyphosphate plastic covering structure.

[0016] The beneficial effects of the utility model are as follows:

[0017] This screwless packaging device for a battery pack fault diagnostic device features an integrated cover plate that snaps onto the battery pack housing, simplifying assembly of the cover plate, diagnostic device, and battery pack. This allows for manual snap-on assembly without compromising the battery pack housing's strength and eliminating the need for complex fixing structures such as drilling. The cover plate's simple overall structure, made of highly ductile and flame-retardant ammonium polyphosphate plastic, is easy to process and assemble, ensuring a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model technical solution or the utility model technical solution in the prior art, the drawings required for use in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model technical solution. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the arrangement of the connecting panels and the fixing panel components on both sides of the outer surface of the cover body in the present invention.

[0020] Figure 2 This is a schematic diagram of the reinforcing ribs provided inside the cover plate body of the present invention.

[0021] Figure 3 This is a schematic diagram of one side of the cover body in the present invention.

[0022] Figure 4 This is a schematic diagram of the cover plate body of the present invention when assembled with the battery pack shell and the diagnostic device body.

[0023] Figure 5 This is a perspective diagram of the cover plate body after assembly in the present invention.

[0024] Label name Label name 1 Cover body 11 Fixed Panel 10 Connection Panel 110 Fixed bayonet 100 Wiring hole 12 reinforcement 101 Wire harness winding column 2 Diagnostic device body 102 Label card slot 3 Battery pack shell 103 Plug test hole 30 Battery pack body 104 handle 31 Fixed card hole DETAILED DESCRIPTION

[0025] as follows:

[0026] Please see the attached Figure 1-5 ,

[0027] The main structure includes a cover body 1 with an L-shaped cross-section. A connection panel 10 and a fixed panel 11 are formed on the two outer sides of the cover body 1 respectively. The connection panel 10 is provided with a wiring hole 100 and a plug-in test hole 103. The bottom of the fixed panel 11 and the connection panel 10 are both provided with fixing snap-fits 110 for snapping into the fixing snap-fit ​​holes 31 on both sides of the battery pack shell 3. The cover body 1 is snapped into the fixing snap-fits 110 and the fixing snap-fit ​​holes 31 through the cooperation of the fixing snap-fits 110 and the fixing snap-fit ​​holes 31, so that the diagnostic device body 2 is buckled into the battery pack shell 3.

[0028] Here’s how it works:

[0029] The sealing of the cover body 1 and the battery pack housing 3 primarily relies on the coordination of the fixing tabs 110 and the fixing holes 31. Once the battery pack body 30 is installed in the battery pack housing 3, the cover body 1, along with the diagnostic device body 2 (after welding) mounted below, is lowered through the opening of the battery pack housing 3. Continued downward pressure causes the fixing tabs 110 to engage with the fixing holes 31 provided on either side of the inner wall of the battery pack housing 3, completing the installation. No auxiliary installation tools (such as screwdrivers) are required; assembly can be completed by simply pressing with bare hands. For disassembly and maintenance, since the fixing holes 31 and fixing tabs 110 are tightly connected, an auxiliary tool (such as a screwdriver) is required to pry them apart (using the pry handle 104).

[0030] In a preferred embodiment of the present invention, the connection panel 10 is further provided with a wire winding post 101 for storing and fixing wires after wiring.

[0031] The wire harness winding column is used to fix longer excess wires when the battery pack is connected to external devices or testing equipment, eliminating the need for additional wiring and facilitating later maintenance.

[0032] In a preferred embodiment of the present invention, the connection panel 10 is further provided with a label slot 102 for detachable and replaceable labels.

[0033] Considering that many battery packs need to be sorted and numbered (currently by adhesive), in order to avoid contamination after being torn off, a label card slot 102 is used to fix the label card, and the label card is "clamped" and limited by the card slot when it extends inward.

[0034] A preferred embodiment of the present invention is as follows: a handle 104 is provided on the outside of the cover body 1 for facilitating the prying and opening of the cover.

[0035] Since the fixing hole 31 is tightly connected to the fixing socket 110 , an auxiliary tool (such as a screwdriver) is required to pry the handle 104 to open the cover.

[0036] In a preferred embodiment of the present invention, the inner wall of the cover body 1 is provided with reinforcing ribs 12 .

[0037] The reinforcement ribs 12 are provided to enhance the structural strength and prevent the shell from deformation (especially when working in a high temperature state for a long time) and aging and cracking.

[0038] A preferred embodiment of the present invention is that the cover body 1 is an integrally cast ammonium polyphosphate plastic cover structure.

[0039] Ammonium polyphosphate plastic has excellent ductility and flame retardant properties, good sealing performance, and increases the safety of the entire battery pack.

[0040] The above are only preferred embodiments of the technical solution of the present utility model, and do not limit the patent scope of the technical solution of the present utility model. All equivalent structural transformations made by using the contents of the description and drawings of the technical solution of the present utility model under the conception of the technical solution of the present utility model, or direct / indirect application in other related technical fields are included in the patent protection scope of the technical solution of the present utility model.

Claims

1. A screwless packaging device for a battery pack fault diagnosis device, characterized in that: include The cover body has an L-shaped cross section. The outer two sides of the cover body are respectively formed with a connection panel and a fixing panel. The connection panel is provided with wiring holes and plug-in test holes. The bottom of the fixing panel and the connecting panel are both provided with fixing bayonet holes for engaging with the fixing bayonet holes on both sides of the battery pack housing. The cover body is engaged with the fixing clamping hole through the matching clamping of the fixing clamping port, so that the diagnostic device body is buckled into the battery pack shell.

2. The screw-free packaging device for a battery pack fault diagnosis device according to claim 1, characterized in that: The connection panel is also provided with a wire winding post for storing and fixing wires after wiring.

3. The screw-free packaging device for a battery pack fault diagnosis device according to claim 1, characterized in that: The connection panel is also provided with a label slot for detachable and replaceable labels.

4. The screw-free packaging device for a battery pack fault diagnosis device according to claim 1, characterized in that: A handle is provided on the outside of the cover body for paving and opening the cover.

5. The screw-free packaging device for a battery pack fault diagnosis device according to claim 1, characterized in that: The inner wall of the cover plate body is provided with reinforcing ribs.

6. The screw-free packaging device for a battery pack fault diagnosis device according to claim 1, characterized in that: The cover plate body is an integrally cast ammonium polyphosphate plastic cover structure.

Images