Uniform-temperature cooling flow channel for cylindrical battery cell

Abstract

The uniform-temperature cooling runner comprises a heat insulation runner and the cylindrical battery cell, a plurality of insertion holes are formed in the heat insulation runner, heat conduction sleeves are inserted into the insertion holes, a fixed convex ring is fixedly connected to the position, close to the edge of the lower end, of each heat conduction sleeve, and the cylindrical battery cell is arranged in the fixed convex ring. A threaded groove is formed in the position, close to the edge of the upper end, of the heat conduction sleeve, a fixing nut is installed on the threaded groove in a threaded mode, a fixing cap is arranged above the heat conduction sleeve and matched with the threaded groove in a threaded mode, a rotating ring is rotatably installed on the inner top of the fixing cap, and a bidirectional threaded rod is rotatably installed below the rotating ring. The heat conduction sleeve is fixed in the flow guide pipe, the whole heat insulation flow channel is made of a heat preservation material, heat of the outer wall of the heat insulation flow channel can be prevented from being dissipated, cooling liquid in the heat insulation flow channel can directly make contact with the heat conduction sleeve, the heat conduction sleeve is used for conducting heat, and the temperature of the cylindrical battery cell is regulated, controlled and maintained.

Description

Technical Field

[0001] This utility model relates to a uniform temperature cooling channel, and more particularly to a uniform temperature cooling channel for cylindrical battery cells. Background Technology

[0002] In existing technologies, cylindrical battery cells require the use of uniform temperature cooling channels to ensure normal and suitable operating temperatures.

[0003] For example, Chinese Patent Publication No. CN211578831U discloses a uniform temperature cooling channel for cylindrical battery cells, belonging to the technical field of automotive design and manufacturing. This utility model's uniform temperature cooling channel for cylindrical battery cells includes a silicone water jacket with multiple mounting holes. Interconnected flow channels are arranged around the walls of these mounting holes. The front end of the silicone water jacket has multiple water inlet pipes communicating with the flow channels within the jacket, and the front ends of these pipes converge and connect to a water inlet. The rear end of the silicone water jacket has multiple water outlet pipes communicating with the flow channels within the jacket, and the rear ends of these pipes converge and connect to a water outlet. This utility model's uniform temperature cooling channel for cylindrical battery cells serves as a battery cell support and fixing structure, eliminating metal costs, saving on potting processes, enabling rapid molding, providing direct heat conduction, and improving heat dissipation efficiency.

[0004] Some problems were found when using the existing cylindrical battery cell uniform temperature cooling channel. First, a silicone water jacket is used as the channel, and the internal flowing coolant is used to regulate the temperature of the battery cell. However, when there is a large temperature difference between the inside and outside, the outer wall of the silicone water jacket will dissipate a lot of heat, resulting in additional heat loss. Second, the battery cell is directly fixed in the silicone water jacket with glue, which makes it difficult to remove and replace the battery cell after it is damaged. Utility Model Content

[0005] The purpose of this invention is to provide a uniform temperature cooling channel for cylindrical battery cells to solve the existing problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a uniform temperature cooling channel for cylindrical battery cells, comprising a heat insulation channel and a cylindrical battery cell. The heat insulation channel has several insertion holes, into which a heat-conducting sleeve is inserted. A fixing protruding ring is fixedly connected near the lower edge of the heat-conducting sleeve. A threaded groove is formed near the upper edge of the heat-conducting sleeve, and a fixing nut is threaded onto the threaded groove. A fixing cap is positioned above the heat-conducting sleeve, and the fixing cap is threadedly engaged with the threaded groove. A rotating ring is rotatably mounted inside the fixing cap, and a bidirectional threaded rod is rotatably mounted below the rotating ring. Fixing rings are symmetrically connected to the bidirectional threaded rod.

[0007] Preferably, guide pipes are fixedly connected to both ends of the heat-insulating flow channel.

[0008] Preferably, the inner wall of the heat-conducting sleeve is symmetrically provided with limiting grooves, and the two sides of the fixing ring are symmetrically fixed with connecting feet, and the connecting feet are slidably engaged with the limiting grooves.

[0009] Preferably, a threading hole is provided at the center of the fixed cap, and a limiting slide rod is fixedly connected to the bottom of the rotating ring.

[0010] Preferably, a threaded sleeve is embedded in one of the connecting feet, the threaded sleeve is threadedly engaged with a bidirectional threaded rod, and a knob is fixedly connected to the lower end of the bidirectional threaded rod. A limiting sliding hole is formed in the other connecting foot, and the limiting sliding hole is slidably engaged with a limiting sliding rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The heat-conducting sleeve is fixed inside the flow tube. The entire heat insulation channel is made of heat-insulating material, which can prevent the heat from dissipating from the outer wall of the heat insulation channel. The coolant inside the heat insulation channel will directly contact the heat-conducting sleeve, and the heat-conducting sleeve will be used to conduct heat to regulate and maintain the temperature of the cylindrical battery cell.

[0013] 2. By using a retaining ring to clamp and fix the cylindrical battery cell, and then threading the retaining cap onto the upper end of the heat-conducting sleeve, the cylindrical battery cell can be fixed inside the heat-conducting sleeve. If the cylindrical battery cell is damaged later, it can be easily removed and replaced. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the heat-insulating flow channel structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the heat-conducting sleeve structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the fixing cap structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the fixing ring structure of this utility model.

[0019] In the diagram: 1. Insulated flow channel; 101. Guide tube; 102. Insertion hole; 2. Heat-conducting sleeve; 201. Fixing convex ring; 202. Limiting slide groove; 203. Fixing nut; 3. Fixing cap; 301. Wire hole; 302. Rotating ring; 303. Limiting slide rod; 304. Bidirectional threaded rod; 305. Knob; 4. Fixing ring; 401. Connecting foot; 402. Threaded sleeve block; 403. Limiting slide hole; 9. Cylindrical battery cell. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 This utility model provides a technical solution: a uniform temperature cooling channel for a cylindrical battery cell, including a heat insulation channel 1 and a cylindrical battery cell 9. The heat insulation channel 1 has a plurality of insertion holes 102, and a heat-conducting sleeve 2 is inserted into the insertion holes 102. A fixing protruding ring 201 is fixedly connected to the heat-conducting sleeve 2 near the lower edge. A threaded groove is opened on the heat-conducting sleeve 2 near the upper edge. A fixing nut 203 is threadedly installed on the threaded groove. A fixing cap 3 is set above the heat-conducting sleeve 2. The fixing cap 3 is threadedly engaged with the threaded groove. A rotating ring 302 is rotatably installed inside the fixing cap 3. A bidirectional threaded rod 304 is rotatably installed below the rotating ring 302. Fixing rings 4 are symmetrically connected to the bidirectional threaded rod 304.

[0022] In this embodiment, the heat-conducting sleeve 2 is passed through the insertion hole 102 from the bottom of the heat insulation channel 1, and then the fixing nut 203 is screwed on to fix the heat-conducting sleeve 2 inside the guide tube 101. At this time, the threaded groove on the heat-conducting sleeve 2 will still be exposed at one end above the fixing nut 203. The cylindrical battery cell 9 is placed between the two fixing rings 4. By controlling the distance between the two fixing rings 4, the fixing rings 4 are clamped and fixed. Then the cylindrical battery cell 9 is inserted into the heat-conducting sleeve 2. At this time, the fixing cap 3 can be rotatably installed on the threaded groove that is still exposed at the upper end of the heat-conducting sleeve 2. Since the fixing cap 3 is through The rotating ring 302 is connected to the bidirectional threaded rod 304. When the fixing cap 3 rotates, it will not drive the bidirectional threaded rod 304 to rotate synchronously. The fixing cap 3 then fixes the fixing ring 4 inside the heat-conducting sleeve 2, and the cylindrical battery cell 9 is fixed inside the heat-conducting sleeve 2. The heat-conducting sleeve 2 is made of a high thermal conductivity material. The coolant flowing inside the heat insulation channel 1 will conduct heat to the heat-conducting sleeve 2. The temperature of the cylindrical battery cell 9 is regulated by the heat-conducting sleeve 2. If a single cylindrical battery cell 9 is damaged later, the fixing cap 3 can be unscrewed to remove the cylindrical battery cell 9.

[0023] In order to achieve the purpose of restricting the fixed ring 4 to slide only inside the heat-conducting sleeve 2, the device adopts the following technical solution: the two ends of the heat-insulating flow channel 1 are fixedly connected to the flow pipe 101, the inner wall of the heat-conducting sleeve 2 is symmetrically opened with the limiting groove 202, and the fixed ring 4 is symmetrically fixedly connected to the two sides with the connecting foot 401, which slides in cooperation with the limiting groove 202.

[0024] The coolant circulation device can be connected through the guide pipe 101, so that the coolant passes through the heat insulation channel 1 to regulate the temperature of the cylindrical battery cell 9. The connecting foot 401 slides with the limiting slide groove 202, so that the fixing ring 4 can only slide inside the heat-conducting sleeve 2. This prevents the fixing ring 4 from clamping and fixing the cylindrical battery cell 9 and causing the cylindrical battery cell 9 to rotate inside the heat-conducting sleeve 2, which would cause the connected cables to become tangled.

[0025] To achieve the purpose of adjusting the spacing between the fixed rings 4, the device adopts the following technical solution: a wire hole 301 is opened at the center of the fixed cap 3, a limiting slide rod 303 is fixedly connected to the bottom of the rotating ring 302, a threaded sleeve 402 is embedded in one side of the connecting foot 401, the threaded sleeve 402 is threadedly engaged with the bidirectional threaded rod 304, a knob 305 is fixedly connected to the lower end of the bidirectional threaded rod 304, and a limiting slide hole 403 is opened in the other side of the connecting foot 401, the limiting slide hole 403 is slidably engaged with the limiting slide rod 303.

[0026] The cable connected to the battery cell can be passed through the wire hole 301 and the fixing cap 3 can be rotated by the knob 305. The bidirectional threaded rod 304 is threadedly engaged with the threaded sleeve block 402. The rotation of the bidirectional threaded rod 304 can adjust the distance between the two fixing rings 4. The limiting sliding hole 403 is slidably engaged with the limiting sliding rod 303, which restricts the fixing rings 4 to only move up and down.

[0027] The working principle and usage process of this utility model are as follows: When using it, a heat-conducting sleeve 2 with a suitable inner diameter should be selected according to the diameter of the battery cell. The heat-conducting sleeve 2 is inserted into the insertion hole 102. Then, the fixing nut 203 is screwed on to fix the heat-conducting sleeve 2 inside the guide tube 101. The cylindrical battery cell 9 is placed between the two fixing rings 4. At the same time, a certain amount of thermal grease needs to be applied around the cylindrical battery cell 9. The knob 305 is used to drive the bidirectional threaded rod 304 to rotate. The rotation of the bidirectional threaded rod 304 can drive the two fixing rings 4. The fixing rings 4 are used to clamp and fix the cylindrical battery cell 9. The fixing rings 4 clamping the cylindrical battery cell 9 are inserted into the heat-conducting sleeve 2. Then, the fixing nut 3 is rotated and installed on the upper end of the heat-conducting sleeve 2, thereby fixing the fixing rings 4 and the cylindrical battery cell 9 inside the heat-conducting sleeve 2.

[0028] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A uniform cooling channel for a cylindrical battery cell, comprising a heat-insulating channel (1) and a cylindrical battery cell (9), characterized in that: The heat insulation channel (1) is provided with several insertion holes (102), and a heat-conducting sleeve (2) is inserted into the insertion holes (102). A fixing protrusion ring (201) is fixedly connected to the heat-conducting sleeve (2) near the lower edge. A threaded groove is provided on the heat-conducting sleeve (2) near the upper edge. A fixing nut (203) is threadedly installed on the threaded groove. A fixing cap (3) is provided above the heat-conducting sleeve (2). The fixing cap (3) is threadedly engaged with the threaded groove. A rotating ring (302) is rotatably installed inside the fixing cap (3). A bidirectional threaded rod (304) is rotatably installed below the rotating ring (302). Fixing rings (4) are symmetrically connected to the bidirectional threaded rod (304).

2. The uniform temperature cooling channel for a cylindrical battery cell according to claim 1, characterized in that: The heat-insulating flow channel (1) is fixed at both ends with flow guide pipes (101).

3. The uniform temperature cooling channel for a cylindrical battery cell according to claim 1, characterized in that: The inner wall of the heat-conducting sleeve (2) is symmetrically provided with limiting grooves (202), and the fixed ring (4) is symmetrically fixed with connecting feet (401) on both sides, and the connecting feet (401) slide in cooperation with the limiting grooves (202).

4. The uniform temperature cooling channel for a cylindrical battery cell according to claim 3, characterized in that: The fixing cap (3) has a thread hole (301) at the center of its upper part, and the rotating ring (302) is fixedly connected to a limiting slide rod (303) below.

5. The uniform temperature cooling channel for a cylindrical battery cell according to claim 4, characterized in that: A threaded sleeve (402) is embedded in the connecting foot (401) on one side. The threaded sleeve (402) is threadedly engaged with the bidirectional threaded rod (304). A knob (305) is fixedly connected to the lower end of the bidirectional threaded rod (304). A limiting sliding hole (403) is opened in the connecting foot (401) on the other side. The limiting sliding hole (403) is slidably engaged with the limiting sliding rod (303).

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