A lithium battery PACK structural adhesive injection device

Abstract

The utility model relates to the technical field of battery module manufacturing, and discloses a lithium battery PACK structural glue injection device, comprising a large-diameter glue mixing tube, the end of the large-diameter glue mixing tube is threaded and connected to a glue distributor, the glue distributor comprises a connecting pad, a glue distributor disc arranged below the connecting pad, a diverter valve connected below the glue distributor disc, and a glue outlet branch pipe connected below the diverter valve. The device can simply and efficiently complete the glue injection process of a battery pack with a large amount of glue injection.

Description

Technical Field

[0001] The utility model relates to the technical field of battery module manufacturing, in particular to a lithium battery PACK structural glue injection device. Background Art

[0002] In the production of lithium battery PACK, glue injection is often required to strengthen battery components and improve battery vibration resistance and cycle life. However, traditional glue injection devices have problems such as too small flow restriction and uneven glue injection in the lower box with partition design, so a new glue injection device solution is needed.

[0003] Because in the production process of lithium battery PACK, the traditional process uses glue injection at the bottom of the module and screw or buckle fixing solution, which is inefficient and complex. The process of eliminating screws or buckles and only using structural glue to fix the module and the lower box is becoming more and more popular. The amount of glue used in a single package has increased sharply. The traditional glue injection device has a low glue output due to small flow rate, resulting in reduced production efficiency. In addition, the glue injection of the lower box with a partition structure is uneven, which can no longer meet the production and PACK performance design requirements. Therefore, a new glue injection device is urgently needed to solve the problems of low efficiency and uneven glue injection of battery packs that use a lot of glue. Utility Model Content

[0004] The utility model aims to provide a lithium battery PACK structural glue injection device, which can simply and efficiently complete the battery pack glue injection process with a large amount of glue injection.

[0005] The above technical purpose of the utility model is achieved through the following technical scheme: a lithium battery PACK structural glue injection device, including a large-diameter mixing glue tube, the end of the large-diameter mixing glue tube is threaded and connected to a glue distributor, the glue distributor includes a connecting pad, a glue distributor disc arranged below the connecting pad, a diverter valve connected below the glue distributor disc and a glue outlet branch pipe connected below the diverter valve.

[0006] The utility model is further configured as follows: two or more glue outlet branch pipes are configured.

[0007] The utility model is further configured as follows: a connecting pipe is arranged on the outside of the large-diameter mixing rubber pipe, the large-diameter mixing rubber pipe is placed inside the connecting pipe by size matching, and the top of the connecting pipe is connected to a glue discharging device, wherein the glue discharging device is a broad description, generally referring to a glue discharging device with a threaded connection at the glue valve outlet.

[0008] The utility model is further configured as follows: the connection pad is threadedly connected to the large-diameter rubber-mixing hose.

[0009] The utility model is further configured as follows: the glue dispensing disc is fixedly connected to the connecting pad by bolts.

[0010] The utility model is further configured as follows: the diverter valve is threadedly connected to the glue dispensing disc.

[0011] The utility model is further configured as follows: the glue outlet branch pipe is threadedly connected to the diverter valve.

[0012] The utility model is further configured as follows: the interface of the large-diameter mixed rubber hose is in an open form, the tube core inside the interface is spiral, the outer diameter of the interface is 30 mm, the inner diameter of the glue outlet is 7 mm, the number of spiral sections is 23, and the spiral length is 376 mm. The large-diameter mixed rubber hose is made of polypropylene, and the inner surface of the large-diameter mixed rubber hose is smooth, the inside is smooth and has low resistance to glue, the material hardness is good, and the corrosion resistance is excellent.

[0013] The utility model is further configured as follows: the glue distributor is made of stainless steel to prevent corrosion and wear of the glue distributor by chemical substances. The thickness of the connection pad matches the thread depth of the mixing rubber pipe, or the thickness is slightly larger than the thread depth of the mixing rubber pipe.

[0014] The utility model is further configured as follows: the connecting pipe is made of stainless steel to avoid corrosion by chemical substances.

[0015] The utility model has the following beneficial effects: the utility model adopts a large-caliber mixing rubber tube, a connecting tube and a glue distributor. When in use, the large-caliber mixing rubber tube is first placed into the connecting tube from top to bottom, and then the connecting tube is connected to the glue discharging device, and then the glue distributor is tightened on the large-caliber mixing rubber tube. The glue distributor position is adjusted to align with the box partition, and the glue injection trajectory is to move from one end of the box to the other end of the box, and then move from the other end of the box to the starting end of the box to complete the glue injection process. The device can simply and efficiently complete the glue injection process of a battery pack with a large amount of glue injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the assembly structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the structure of a large-diameter rubber mixing hose of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the glue dispenser of the utility model.

[0020] Figure 4 It is a schematic diagram of the connecting pipe structure of the utility model.

[0021] Figure 5 yes Figure 1 Schematic diagram of the mid-section structure.

[0022] In the figure, 1. large-diameter rubber mixing hose; 2. glue distributor; 201. connecting pad; 202. glue distributor disc; 203. diverter valve; 204. glue outlet branch pipe; 3. connecting pipe; 4. glue outlet equipment. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. 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.

[0024] Examples, such as Figure 1 , Figure 3 As shown, a lithium battery PACK structural glue injection device includes a large-diameter glue mixing tube 1, the end of which is threaded and connected to a glue distributor 2, and the glue distributor 2 includes a connecting pad 201, a glue distributor disc 202 arranged below the connecting pad 201, a diverter valve 203 connected below the glue distributor disc 202, and a glue outlet branch pipe 204 connected below the diverter valve 203. The glue outlet branch pipes 204 are provided in two numbers.

[0025] like Figure 1 , Figure 2 , Figure 4 As shown, the utility model is further configured as follows: a connecting pipe 3 is arranged on the outside of the large-diameter mixing rubber pipe 1, the large-diameter mixing rubber pipe 1 is placed inside the connecting pipe 3 by size matching, and the connecting pipe 3 is connected to a glue discharging device 4 on top, wherein the glue discharging device 4 is a broad description, generally referring to a glue discharging device 4 with a threaded connection at the glue valve outlet.

[0026] like Figure 1 As shown, the connection pad 201 is threadedly connected to the large-diameter rubber mixing hose 1.

[0027] like Figure 1 As shown, the glue dispensing disc 202 is fixedly connected to the connecting pad 201 by bolts.

[0028] like Figure 1 As shown, the diverter valve 203 is threadedly connected to the glue dispensing disc 202 .

[0029] like Figure 1 As shown, the glue outlet branch pipe 204 is threadedly connected to the diverter valve 203 .

[0030] like Figure 1 , Figure 5 As shown, the interface of the large-diameter mixed rubber hose 1 is open, the tube core inside the interface is spiral, the outer diameter of the interface is 30mm, the inner diameter of the glue outlet is 7mm, the number of spiral sections is 23, and the spiral length is 376mm. The large-diameter mixed rubber hose 1 is made of polypropylene, and the inner surface of the large-diameter mixed rubber hose 1 is smooth, the inside is smooth and has low resistance to glue, the material hardness is good, and the corrosion resistance is excellent.

[0031] The glue distributor 2 is made of stainless steel to prevent chemical substances from corroding and wearing the glue distributor 2. The thickness of the connection pad 201 matches the thread depth of the mixing rubber pipe, or the thickness is slightly larger than the thread depth of the mixing rubber pipe.

[0032] The connecting pipe 3 is made of stainless steel to avoid corrosion by chemical substances.

[0033] The utility model adopts a large-diameter rubber mixing tube 1, a connecting tube 3 and a glue distributor 2. When in use, the large-diameter rubber mixing tube 1 is first placed into the connecting tube 3 from top to bottom, and then the connecting tube 3 is connected to the glue discharging device 4, and then the glue distributor 2 is tightened on the large-diameter rubber mixing tube 1. The position of the glue distributor 2 is adjusted to align with the box partition, and the glue injection trajectory is to move from one end of the box to the other end of the box, and then move from the other end of the box to the starting end of the box to complete the glue injection process. The device can simply and efficiently complete the glue injection process of the battery pack with a large amount of glue injection.

Claims

1. A lithium battery PACK structural adhesive injection device, characterized in that: The invention comprises a large-diameter rubber mixing tube (1), the lower end of which is connected to a glue distributor (2), the glue distributor (2) comprising a connecting pad (201), a glue distributor disc (202) arranged below the connecting pad (201), a flow divider valve (203) connected below the glue distributor disc (202), and a glue outlet branch pipe (204) connected below the flow divider valve (203).

2. A lithium battery PACK structural adhesive injection device according to claim 1, characterized in that: The glue outlet branch pipes (204) are arranged in two or more portions.

3. A lithium battery PACK structural adhesive injection device according to claim 1, characterized in that: A connecting pipe (3) is arranged on the outside of the large-diameter rubber mixing pipe (1).

4. A lithium battery PACK structural adhesive injection device according to claim 1, characterized in that: The connection pad (201) is threadedly connected to the large-diameter rubber mixing hose (1).

5. A lithium battery PACK structural adhesive injection device according to claim 1, characterized in that: The glue dispensing disc (202) is fixedly connected to the connecting pad (201) by means of bolts.

6. A lithium battery PACK structural adhesive injection device according to claim 1, characterized in that: The diverter valve (203) is threadedly connected to the glue dispensing disc (202).

7. A lithium battery PACK structural adhesive injection device according to claim 1, characterized in that: The glue outlet branch pipe (204) is threadedly connected to the diverter valve (203).

8. A lithium battery PACK structural adhesive injection device according to claim 1, characterized in that: The large-diameter mixed rubber hose (1) is made of polypropylene, and the inner surface of the large-diameter mixed rubber hose (1) is smooth.

9. A lithium battery PACK structural adhesive injection device according to claim 1, characterized in that: The glue dispenser (2) is made of stainless steel.

10. A lithium battery PACK structural adhesive injection device according to claim 3, characterized in that: The connecting pipe (3) is made of stainless steel.

Images