Riveting structure for shell and cover plate of battery pack

Abstract

The utility model discloses a riveting structure for a battery pack shell and a cover plate, and relates to the technical field of battery pack installation, the riveting structure comprises the battery pack shell and a riveting fixing mechanism, the riveting fixing mechanism is installed on the inner side of the battery pack shell, and the cover plate is placed at the top end of the battery pack shell through the arrangement of the riveting fixing mechanism; according to the invention, the connection clamping plate is clamped into the connection clamping groove, the cover plate is connected and fixed, meanwhile, the battery pack shell and the cover plate are sealed through the connection clamping groove, and after the cover plate is installed, the outer side of the battery pack shell is locally heated, so that the solid hot melt adhesive in the sealing opening is melted and flows into a gap of the connection clamping groove; according to the battery pack shell and cover plate mounting structure, the mounting firmness of the cover plate is improved, meanwhile, the sealing effect of the cover plate is improved, accurate butt joint of the cover plate and the battery pack shell is ensured through matching of the positioning pins and the positioning holes, meanwhile, the mounting stability is improved, meanwhile, screws are greatly not needed for connection, and the mounting efficiency of the battery pack shell and the cover plate is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack installation, and in particular to a riveting structure for a battery pack shell and a cover plate. Background Art

[0002] The battery pack is a core component used to store and provide electrical energy in new energy vehicles and electric equipment. It is assembled from multiple battery modules and is a higher-level component in the battery system, which enables the working range of electric equipment to be unrestricted by the location of the socket. Many power tools on the market are powered by battery packs.

[0003] After searching, the patent number "CN207474546U" mentioned in the text that "This utility model discloses a battery pack shell structure, which belongs to the field of design and installation of new energy electric vehicle power supply system. The sealing gasket of the utility model is arranged horizontally between the lower side of the outer edge of the sealing upper cover and the lower bottom of the material support. The outer edge of the lower side of the sealing upper cover is provided with an L-shaped water retaining flange. The upper outer end of the upper side of the material support is horizontally welded and fixed with an L-shaped cover bracket that is compatible with the water retaining flange. The upper edge of the water retaining flange on the lower outer edge of the sealing upper cover is vertical in the horizontal direction. There are multiple locking bolts evenly arranged, multiple connecting brackets are welded and fixed on the outside of the lower bottom of the material support, a one-way exhaust valve is provided on one side of the lower bottom of the material support, and high-pressure and low-pressure interfaces are provided at both ends of the other side of the lower bottom of the material support respectively. It improves the overall sealing effect by setting water-retaining flanges and sealing gaskets, but its traditional battery pack assembly mostly adopts screw fixing or welding and other methods. These methods are complicated to install and have low efficiency. At the same time, there will be certain gaps in the simple mechanical structure, and there will be problems with insufficient sealing performance in long-term use.

[0004] To this end, we provide a riveting structure for the battery pack shell and cover to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a riveting structure for a battery pack shell and a cover plate, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a riveting structure for a battery pack shell and a cover plate, comprising a battery pack shell and a riveting fixing mechanism, wherein the riveting fixing mechanism is installed on the inner side of the battery pack shell;

[0007] The riveting fixing mechanism includes a sealing connection component and a positioning connection component. The sealing connection component is provided on the top end of the battery pack shell, and the positioning connection component is installed on the inner bottom end of the sealing connection component.

[0008] Preferably, the sealing connection assembly includes a cover plate, a connecting card plate, a connecting card slot, a sealing gasket and a sealing port. The cover plate is movably connected to the top of the battery pack shell, the bottom end of the cover plate is fixedly connected to the connecting card plate, and a connecting card slot is provided on the surface of the battery pack shell.

[0009] Preferably, a sealing gasket is adhesively connected to the bottom end of the connecting card, and the sealing gasket is made of rubber.

[0010] Preferably, a sealing opening is provided on the outer surface of the connecting card, and solid hot melt adhesive is placed inside the sealing opening.

[0011] Preferably, the positioning connection assembly includes a positioning hole and a positioning pin, the top surface of the battery pack shell is provided with a positioning hole, and the inner top end of the cover plate is installed with a positioning pin.

[0012] Preferably, locking components are installed on the left and right ends of the inner side of the cover plate, and the locking components include a locking block, a compression spring, a locking slot, an auxiliary block, a movable top block and a movable magnetic plate. Locking blocks are installed on the left and right ends of the inner side of the cover plate, and a compression spring is installed at the rear end of the locking block. The compression spring is fixedly connected to the cover plate, and a locking slot is opened on the inner side of the connecting slot.

[0013] Preferably, the left and right ends of the locking block are movably connected with auxiliary blocks, and the inner side of the locking block is installed with a movable top block.

[0014] Preferably, the front end of the movable top block is fixedly connected to a movable magnetic plate, and a fixed magnet is provided on the inner side of the locking slot.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. By setting up a riveting fixing mechanism, the cover plate is placed on the top of the battery pack shell, and the connecting card is inserted into the connecting card slot to connect and fix the cover plate. At the same time, the battery pack shell and the cover plate are sealed through the connecting card slot. After the cover plate is installed, the outside of the battery pack shell is locally heated to melt the solid hot melt adhesive in the sealing port, which flows into the gap of the connecting card slot, thereby improving the firmness of the cover plate installation and increasing the sealing effect of the cover plate. The cooperation of the positioning pins and the positioning holes ensures that the cover plate and the battery pack shell are accurately docked, while improving the stability of the installation.

[0017] 2. Through the setting of the locking assembly, the compression spring provides thrust to the locking card block. When the connecting card is connected to the connecting card slot, the locking card block pops out and is locked in the locking card slot to fix the cover to prevent it from falling off. The magnet in the locking card slot generates suction on the movable magnetic plate, so that the movable top block is automatically ejected, and the auxiliary card blocks are ejected from both sides of the locking card block to fix the movable top block, thereby improving the firmness of the overall connection and ensuring the stability of the overall connection. At the same time, there is no need for screws for connection, which greatly increases the installation efficiency of the battery pack shell and the cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall appearance structure proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the sealing connection assembly structure proposed by the present invention;

[0020] Figure 3 This is a schematic diagram of the matching structure of the battery pack housing and the connecting slot proposed in the present invention;

[0021] Figure 4 This is a schematic structural diagram of the locking assembly proposed in the present utility model.

[0022] In the figure: 1. Battery pack shell; 2. Riveted fixing mechanism; 21. Sealing connection assembly; 211. Cover plate; 212. Connecting card plate; 213. Connecting card slot; 214. Sealing gasket; 215. Sealing port; 22. Positioning connection assembly; 221. Positioning hole; 222. Positioning pin; 3. Locking assembly; 31. Locking block; 32. Compression spring; 33. Locking card slot; 34. Auxiliary block; 35. Movable top block; 36. Movable magnetic plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] See also Figure 1-4 As shown, a riveting structure for a battery pack shell and a cover plate includes a battery pack shell 1 and a riveting fixing mechanism 2. The riveting fixing mechanism 2 is installed on the inner side of the battery pack shell 1;

[0026] The riveting fixing mechanism 2 includes a sealing connection component 21 and a positioning connection component 22 . The sealing connection component 21 is provided at the top of the battery pack shell 1 , and the positioning connection component 22 is installed at the inner bottom end of the sealing connection component 21 .

[0027] Furthermore, the sealing connection assembly 21 includes a cover plate 211, a connecting card plate 212, a connecting card slot 213, a sealing gasket 214 and a sealing port 215. The cover plate 211 is movably connected to the top of the battery pack shell 1, and the bottom end of the cover plate 211 is fixedly connected to the connecting card plate 212. The surface of the battery pack shell 1 is provided with a connecting card slot 213. The cover plate 211 is placed on the top of the battery pack shell 1 so that the connecting card plate 212 is snapped into the connecting card slot 213 to connect and fix the cover plate 211.

[0028] Furthermore, a sealing gasket 214 is adhesively connected to the bottom end of the connecting card plate 212. The sealing gasket 214 is made of rubber. The sealing gasket 214 is inserted into the bottom end of the connecting card slot 213 to seal the battery pack shell 1 and the cover plate 211 through the connecting card slot 213.

[0029] Furthermore, a sealing opening 215 is provided on the outer surface of the connecting card 212, and solid hot melt adhesive is placed inside the sealing opening 215. After the cover 211 is installed, the outer side of the battery pack shell 1 is locally heated to melt the solid hot melt adhesive in the sealing opening 215 and flow into the gap of the connecting card slot 213, thereby improving the firmness of the installation of the cover 211 and increasing the sealing effect of the cover 211.

[0030] Furthermore, the positioning connection assembly 22 includes a positioning hole 221 and a positioning pin 222. The positioning hole 221 is opened on the top surface of the battery pack shell 1, and the positioning pin 222 is installed on the inner top of the cover plate 211. Through the cooperation between the positioning pin 222 and the positioning hole 221, the cover plate 211 and the battery pack shell 1 are ensured to be accurately docked, while the stability of the installation is improved.

[0031] Example 2

[0032] See also Figure 2 、 Figure 3 and Figure 4As shown, compared with Example 1, as another embodiment of the present invention, locking components 3 are installed on the left and right ends of the inner side of the cover plate 211, and the locking component 3 includes a locking block 31, a compression spring 32, a locking slot 33, an auxiliary block 34, a movable top block 35 and a movable magnetic plate 36. Locking blocks 31 are installed on the left and right ends of the inner side of the cover plate 211, and a compression spring 32 is installed at the rear end of the locking block 31. The compression spring 32 is fixedly connected to the cover plate 211, and a locking slot 33 is opened on the inner side of the connecting slot 213. The compression spring 32 provides thrust to the locking block 31. When the connecting plate 212 is connected to the connecting slot 213, the locking block 31 pops out and is stuck in the locking slot 33 to fix the cover plate 211 and prevent the cover plate 211 from falling off.

[0033] Furthermore, auxiliary blocks 34 are movably connected to the left and right ends of the locking block 31, and a movable top block 35 is installed on the inner side of the locking block 31. The auxiliary blocks 34 are pushed out from both sides of the locking block 31 through the movable top block 35, and the movable top block 35 is fixed to improve the firmness of the overall connection.

[0034] Furthermore, the front end of the movable top block 35 is fixedly connected to a movable magnetic plate 36, and a fixed magnet is provided on the inner side of the locking slot 33. The magnet in the locking slot 33 generates suction on the movable magnetic plate 36, so that the movable top block 35 is automatically ejected, thereby improving the portability of the fixed connection and ensuring the stability of the overall connection.

[0035] Working principle: When in use, the first step is to put the battery into the battery pack shell 1, and then place the cover plate 211 on the top of the battery pack shell 1, so that the connecting card plate 212 is snapped into the connecting card slot 213, and the cover plate 211 is connected and fixed. At the same time, the battery pack shell 1 and the cover plate 211 are sealed through the connecting card slot 213. The second step is to install the cover plate 211, and locally heat the outside of the battery pack shell 1 to melt the solid hot melt adhesive in the sealing port 215, and flow into the gap of the connecting card slot 213, thereby improving the firmness of the cover plate 211 installation and increasing the sealing effect of the cover plate 211. The positioning pin 222 cooperates with the positioning hole 221 to ensure that the cover plate 211 is accurately docked with the battery pack shell 1, and the stability of the installation is improved. In the third step, the locking block 31 is provided with a thrust by the compression spring 32. When the connecting card 212 is engaged with the connecting card slot 213, the locking block 31 pops out and is engaged with the locking card slot 33 to fix the cover plate 211 to prevent the cover plate 211 from falling off. In the fourth step, the magnet in the locking card slot 33 generates suction on the movable magnetic plate 36, so that the movable top block 35 is automatically ejected, and the auxiliary card blocks 34 are ejected from both sides of the locking card block 31 to fix the movable top block 35, thereby improving the firmness of the overall connection and ensuring the stability of the overall connection. In this way, the use of a riveted structure for the battery pack shell and the cover plate is completed.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A riveting structure for a battery pack housing and a cover plate, comprising a battery pack housing (1) and a riveting fixing mechanism (2), characterized in that: A riveting fixing mechanism (2) is installed on the inner side of the battery pack housing (1); The riveting fixing mechanism (2) comprises a sealing connection component (21) and a positioning connection component (22); the sealing connection component (21) is provided at the top end of the battery pack shell (1); and the positioning connection component (22) is installed at the inner bottom end of the sealing connection component (21).

2. The riveting structure for a battery pack shell and a cover plate according to claim 1, characterized in that: The sealing connection assembly (21) comprises a cover plate (211), a connecting card plate (212), a connecting card slot (213), a sealing gasket (214) and a sealing port (215); the cover plate (211) is movably connected to the top of the battery pack shell (1); the connecting card plate (212) is fixedly connected to the bottom end of the cover plate (211); and the connecting card slot (213) is provided on the surface of the battery pack shell (1).

3. The riveting structure for a battery pack shell and a cover plate according to claim 2, characterized in that: The bottom end of the connecting card plate (212) is adhesively connected to a sealing gasket (214), and the sealing gasket (214) is made of rubber.

4. The riveting structure for a battery pack shell and a cover plate according to claim 2, characterized in that: A sealing opening (215) is provided on the outer surface of the connecting card plate (212), and solid hot melt adhesive is placed inside the sealing opening (215).

5. The riveting structure for a battery pack shell and a cover plate according to claim 1, characterized in that: The positioning connection assembly (22) comprises a positioning hole (221) and a positioning pin (222); the top surface of the battery pack housing (1) is provided with a positioning hole (221); and the inner top of the cover plate (211) is provided with a positioning pin (222).

6. The riveting structure for a battery pack shell and a cover plate according to claim 2, characterized in that: The left and right ends of the inner side of the cover plate (211) are provided with locking assemblies (3), and the locking assemblies (3) include a locking block (31), a compression spring (32), a locking slot (33), an auxiliary block (34), a movable top block (35) and a movable magnetic plate (36). The left and right ends of the inner side of the cover plate (211) are provided with locking blocks (31), a compression spring (32) is provided at the rear end of the locking block (31), the compression spring (32) and the cover plate (211) are fixedly connected, and a locking slot (33) is provided on the inner side of the connecting slot (213).

7. The riveting structure for a battery pack shell and a cover plate according to claim 6, characterized in that: Auxiliary blocks (34) are movably connected to the left and right ends of the locking block (31), and a movable top block (35) is installed on the inner side of the locking block (31).

8. The riveting structure for a battery pack shell and a cover plate according to claim 7, characterized in that: The front end of the movable top block (35) is fixedly connected to a movable magnetic plate (36), and the inner side of the locking slot (33) is provided with a fixed magnet.

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