Lithium battery water cooling device convenient for replacing cooling liquid

Abstract

The lithium battery water cooling device comprises a protection mechanism, a loading mechanism, a cooling mechanism and a lithium battery assembly, the loading mechanism is inserted into the protection mechanism, the cooling mechanism is fixedly connected to the bottom of the loading mechanism, and the lithium battery assembly is inserted into the loading mechanism. The protection mechanism is composed of a protection shell, a ventilation hole, a top cover, a top cover groove, a grip, an electrode contact, a fixing bolt, a clamping block, a threaded hole and a buffer pad. The storage battery has the advantages that the protection effect is good, damage to the inner wall caused by collision is prevented, the protection effect is improved, the service life of the storage battery is prolonged, cooling liquid can be cooled and reused conveniently, backflow is performed through the connecting pipe for cooling again, the cooling effect is improved, and a user can replace the internal cooling liquid conveniently; the situation that the cooling liquid effect becomes poor or the inner wall is corroded is prevented, the cooling quality is improved, the connection mode is simple, complete disassembly is not needed during maintenance, and the maintenance efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of lithium battery cooling technology, specifically to a lithium battery water-cooling device that facilitates coolant replacement. Background Technology

[0002] When lithium batteries are installed in a battery case, the connection between the lithium battery and the battery case is usually quite tight. The battery case itself does not have a good heat dissipation effect, which makes it difficult for the heat generated by the lithium battery to dissipate during long-term use. Slow heat dissipation can easily damage the lithium battery over time and fail to meet its lifespan. Therefore, it is necessary to dissipate heat from the lithium battery.

[0003] The prior art disclosure number is 202010210290.8. A lithium battery box capable of rapid heat dissipation and cooling includes a battery box body. Support plates are provided on the inner walls of both sides of the battery box body. A lithium battery is placed inside the cavity of the battery box body, with the bottom of the lithium battery positioned on top of the support plates. A limiting rod is provided at the bottom of the lithium battery. A wind-cooling device is provided at the bottom of the inner cavity of the battery box body, and a water-cooling device is provided at the top of the battery box body. A stabilizing device is provided at the bottom of the water-cooling device. Heat dissipation fins are provided on both the outer walls of the battery box body. Heat-conducting plates are evenly distributed on the end faces of the heat dissipation fins near the outer walls of the battery box body, with large gaps to facilitate heat dissipation. A rotating impeller blows out cold air, thereby accelerating the heat dissipation of the lithium battery. During operation, it can quickly absorb the heat generated by the lithium battery, exhibiting good stability and being less prone to shaking.

[0004] However, the existing technology still has the following shortcomings. The above-mentioned device cools the lithium battery by combining water cooling and air cooling. However, the internal coolant cannot circulate effectively. Under prolonged heating, the cooling effect of the internal coolant will decrease. Therefore, it is necessary to design a lithium battery water cooling device that is easy to replace and can be recycled. Summary of the Invention

[0005] The purpose of this invention is to provide a lithium battery water-cooling device that facilitates coolant replacement, thereby solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a lithium battery water cooling device that facilitates coolant replacement, comprising a protective mechanism, a loading mechanism, a cooling mechanism, and a lithium battery assembly, wherein the loading mechanism is inserted into the interior of the protective mechanism, the cooling mechanism is fixedly connected to the bottom of the loading mechanism, and the lithium battery assembly is inserted into the interior of the loading mechanism.

[0007] The protective mechanism consists of a protective shell, ventilation holes, a top cover, a top cover groove, a handle, an electrode connector, fixing bolts, a locking block, threaded holes, and a buffer pad. The protective shell is fixedly connected to the surface of the protective mechanism. The ventilation holes are located on the side of the protective shell. The top cover is snapped onto the top of the protective shell. The top cover groove is located on the top of the top cover. The handle is rotatably connected to the top of the top cover. The electrode connector is fixedly connected to the top of the top cover. The fixing bolts are inserted into the inside of the top cover and threaded into the inside of the threaded holes. The locking block is fixedly connected to the inner bottom of the protective shell. The threaded holes are located on the top of the locking block. The buffer pad is fixedly connected to the inner side of the locking block, providing protection and preventing coolant leakage due to impact, which could lead to a short circuit and improve safety.

[0008] According to the above technical solution, the loading mechanism consists of an assembly shell, a flow channel, a connecting port, a connecting pipe, a lock hole, a baffle, a hollow groove, and a support block. The assembly shell is inserted into the interior of the protective shell, the flow channel is opened inside the assembly shell, the connecting port is opened inside the assembly shell, the connecting pipe is fixedly connected to the side of the assembly shell, the lock hole is fixedly connected to the surface of the assembly shell, the baffle is fixedly connected to the surface of the connecting port, the hollow groove is opened inside the baffle, and the support block is fixedly connected inside the hollow groove, which facilitates the carrying and fixing of the battery cells.

[0009] According to the above technical solution, the cooling mechanism consists of a water storage shell, a return water inlet, a water storage tank, a cooling assembly, a condenser pipe, a suction pump, a suction port, a water outlet, and a sealing mounting plate. The water storage shell is fixedly connected to the bottom of the assembly shell. The return water inlet is located on the side of the water storage shell. The water storage tank is located inside the water storage shell. The cooling assembly is fixedly connected to the inside of the water storage tank. The condenser pipe is fixedly connected to the inside of the cooling assembly. The suction pump is fixedly connected to the inside of the water storage tank on the side away from the return water inlet. The suction port is located on the surface of the suction pump. The water outlet is fixedly connected to the top of the water storage shell. The sealing mounting plate is threadedly connected to the bottom of the water storage shell, facilitating the circulation and cooling of the coolant, improving the cooling effect. The bottom sealing mounting plate also facilitates periodic replacement of the coolant, improving the cooling quality.

[0010] According to the above technical solution, the lithium battery assembly consists of a battery cell, an electrical connection plate, and a connecting harness. The battery cell is inserted into the inside of the assembly shell, the electrical connection plate is fixedly connected to the top of the battery cell, one end of the connecting harness is fixedly connected to the top of the electrical connection plate, and the other end is fixedly connected to the inside of the electrode connector, so as to facilitate connection between the battery cell and the electrode connector, and to output power through the electrode connector.

[0011] According to the above technical solution, the lock hole and the threaded hole are located on a vertical line, and the fixing bolt passes through the inside of the top cover and the lock hole and is threadedly connected to the threaded hole, which facilitates the fixing of the top cover and the limiting assembly shell, and plays a fixing role.

[0012] According to the above technical solution, the protective shell is made of high-strength alloy material, which is convenient for protecting the internal battery cells and cooling mechanism from collisions that could damage the inner wall and cause coolant leakage. The shell is also equipped with a buffer pad to cushion the impact, improve the protection effect, and extend the service life of the battery.

[0013] According to the above technical solution, the top of the connecting pipe is connected to the inside of the flow channel, and the connection position is located at the upper end of the surface of the assembly shell, which facilitates the flow of coolant from the upper end of the flow channel into the interior of the water storage tank for cooling and reuse.

[0014] According to the above technical solution, the assembly shell is inserted into the inside of the card block, and the assembly shell and the buffer pad fit together, which facilitates the stabilization of the assembly shell by the card block, prevents the assembly shell from shaking, and improves the protection effect in conjunction with the buffer pad.

[0015] According to the above technical solution, the cooling component has a rectangular opening inside, the condenser tube is fixedly connected inside the rectangular opening, and there is a gap between the condenser tubes. The cooling component is located in the middle of the water storage tank, which facilitates the return of the coolant located at the upper end of the flow channel to the water storage tank. The coolant inside the water storage tank is conducted to the bottom of the flow channel by the suction pump. The coolant passes through the condenser tube for cooling and reuse, thereby achieving the purpose of internal coolant circulation and cooling.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. This invention, through the external setting and protective shell, facilitates the protection of the internal battery cells and cooling mechanism to prevent collisions from damaging the inner wall and causing coolant leakage. In conjunction with the buffer pad, it buffers the impact force, improves the protection effect, and extends the service life of the battery.

[0017] 2. In this invention, a connecting pipe is provided to connect the flow channel and the assembly shell, and a suction pump is provided at the upper and lower positions to drive the coolant to flow into the interior of the water storage tank for cooling and reuse. The coolant is then returned through the connecting pipe for further cooling, thereby improving the cooling effect.

[0018] 3. The present invention provides a sealing mounting plate at the bottom of the water storage tank, which makes it convenient for users to replace the internal coolant after long-term use, preventing the coolant from deteriorating or corroding the inner wall, and improving the cooling quality.

[0019] 4. The present invention features a double-layer design where the battery cell is installed inside the assembly shell, and then the assembly shell is installed in the protective shell. This design eliminates the need for complete disassembly during maintenance, thus improving maintenance efficiency. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is a schematic diagram of the internal structure of the assembly shell of the present invention; Figure 4 This is a schematic diagram of the internal structure of the water storage shell of the present invention; Figure 5 This is a schematic diagram of the internal structure of the baffle of the present invention; Figure 6 This is the invention Figure 2 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Protective mechanism; 101. Protective shell; 102. Ventilation hole; 103. Top cover; 104. Top cover groove; 105. Handle; 106. Electrode connector; 107. Fixing bolt; 108. Locking block; 109. Threaded hole; 110. Buffer pad; 2. Loading mechanism; 201. Assembly shell; 202. Flow channel; 203. Connecting port; 204. Connecting pipe; 205. Lock hole; 206. Baffle; 207. Hollow groove; 208. Support block; 3. Cooling mechanism; 301. Water tank; 302. Water return port; 303. Water tank; 304. Cooling assembly; 305. Condenser pipe; 306. Suction pump; 307. Water inlet; 308. Water outlet; 309. Sealing mounting plate; 4. Lithium battery assembly; 401. Battery cell; 402. Electrical connection plate; 403. Connecting harness. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1-6 The present invention provides the following technical solution: Example 1:

[0024] A lithium battery water-cooling device for easy replacement of coolant includes a protective mechanism 1, a loading mechanism 2, a cooling mechanism 3, and a lithium battery assembly 4. The loading mechanism 2 is inserted into the interior of the protective mechanism 1, the cooling mechanism 3 is fixedly connected to the bottom of the loading mechanism 2, and the lithium battery assembly 4 is inserted into the interior of the loading mechanism 2. The protective mechanism 1 consists of a protective shell 101, a ventilation hole 102, a top cover 103, a top cover groove 104, a handle 105, an electrode connector 106, a fixing bolt 107, a locking block 108, a threaded hole 109, and a buffer pad 110. The protective shell 101 is fixedly connected to the surface of the protective mechanism 1. The protective shell 101 is made of high-strength alloy material. The ventilation hole 102 is opened on the side of the protective shell 101. The top cover 103 is snapped onto the top of the protective shell 101. The top cover groove 104 is opened on the top of the top cover 103. The handle 105 is rotatably connected to the top of the top cover 103. The electrode connector 106 is fixedly connected to the top of the top cover 103. The fixing bolt 107 is inserted into the inside of the top cover 103 and threaded into the inside of the threaded hole 109. The locking block 108 is fixedly connected to the inner bottom of the protective shell 101. The threaded hole 109 is opened on the top of the locking block 108. The buffer pad 110 is fixedly connected to the inner side of the locking block 108.

[0025] The loading mechanism 2 consists of an assembly shell 201, a flow channel 202, a connecting port 203, a connecting pipe 204, a locking hole 205, a baffle 206, a hollow groove 207, and a support block 208. The assembly shell 201 is inserted into the interior of the protective shell 101 and the locking block 108, and the assembly shell 201 is in close contact with the buffer pad 110. The flow channel 202 is opened inside the assembly shell 201, the connecting port 203 is opened inside the assembly shell 201, and the connecting pipe 204 is fixedly connected to the side of the assembly shell 201. The top of the connecting pipe 204 is connected to the flow channel 205. The slot 202 is located inside the upper end of the surface of the assembly shell 201. The lock hole 205 is fixedly connected to the surface of the assembly shell 201. The lock hole 205 and the threaded hole 109 are on the same vertical line. The fixing bolt 107 passes through the top cover 103 and the lock hole 205 and is threadedly connected to the threaded hole 109. This facilitates the fixing of the top cover 103 and the limiting of the assembly shell 201, thus playing a fixing role. The baffle 206 is fixedly connected to the surface of the connecting port 203. The hollow slot 207 is opened inside the baffle 206. The support block 208 is fixedly connected to the inside of the hollow slot 207.

[0026] The lithium battery assembly 4 consists of a battery cell 401, an electrical connection plate 402, and a connecting harness 403. The battery cell 401 is inserted into the inside of the assembly shell 201. The electrical connection plate 402 is fixedly connected to the top of the battery cell 401. One end of the connecting harness 403 is fixedly connected to the top of the electrical connection plate 402, and the other end is fixedly connected to the inside of the electrode connector 106. As described above, by installing the battery cell 401 inside the assembly shell 201 and then installing the assembly shell 201 inside the protective shell 101, the battery cell 401 is effectively protected from damage caused by impact. Combined with the double-layer design, the device does not need to be completely disassembled during maintenance, thus improving maintenance efficiency. Example 2:

[0027] Based on Embodiment 1, the loading mechanism 2 consists of an assembly shell 201, a flow channel 202, a connecting port 203, a connecting pipe 204, a locking hole 205, a baffle 206, a hollow groove 207, and a support block 208. The assembly shell 201 is inserted into the interior of the protective shell 101 and the locking block 108, and the assembly shell 201 is in close contact with the buffer pad 110. The flow channel 202 is opened inside the assembly shell 201, the connecting port 203 is opened inside the assembly shell 201, and the connecting pipe 204 is fixedly connected to the side of the assembly shell 201. The top of the connecting pipe 204 is... The lock hole 205 is fixedly connected to the surface of the assembly shell 201. The lock hole 205 and the threaded hole 109 are located on the same vertical line, and the fixing bolt 107 passes through the top cover 103 and the lock hole 205 and is threadedly connected to the threaded hole 109, which facilitates the fixing of the top cover 103 and the limiting assembly shell 201, and plays a fixing role. The baffle 206 is fixedly connected to the surface of the connecting port 203. The hollow groove 207 is opened in the inside of the baffle 206, and the support block 208 is fixedly connected to the inside of the hollow groove 207.

[0028] The cooling mechanism 3 consists of a water storage shell 301, a return water inlet 302, a water storage tank 303, a cooling assembly 304, a condenser pipe 305, a suction pump 306, a suction port 307, a water outlet 308, and a sealing mounting plate 309. The water storage shell 301 is fixedly connected to the bottom of the assembly shell 201. The return water inlet 302 is located on the side of the water storage shell 301. The water storage tank 303 is located inside the water storage shell 301. The cooling assembly 304 is fixedly connected to the inside of the water storage tank 303. The condenser pipe 305 is fixedly connected to the inside of the cooling assembly 304. The suction pump 306 is fixedly connected to the side of the water storage tank 303 away from the return water inlet 302. The suction port 307 is located on the surface of the suction pump 306. The water outlet 308 is fixedly connected to the top of the water storage shell 301. The sealing mounting plate 309 is threadedly connected to the bottom of the water storage shell 301.

[0029] As described above, the hollow-designed assembly shell 201 and baffle 206 form a multi-directional, close-fitting cooling system, improving the cooling effect. In conjunction with the suction pump 306 inside the water storage shell 301, the coolant is circulated and transported. The internal condenser 305 cools the circulating coolant again, and the suction pump 306 supplies it a second time, improving cooling efficiency. The sealing mounting plate 309 at the bottom facilitates regular coolant replacement, increasing cooling quality.

[0030] In summary, the battery cell 401 is inserted into the assembly housing 201, and the internal baffle 206 isolates each battery cell 401. The assembly housing 201 is then inserted into the locking blocks 108 inside the protective housing 101. The top cover 103 is then fixedly connected to the threaded hole 109 by the fixing bolt 107 passing through the locking hole 205 inside the protective housing 101. It is then electrically connected to the electrode connector 106 via the connecting wire harness 403. This effectively protects the device from damage. During use, the coolant inside the water tank 303 is pumped through the outlet 308 into the flow channel by the suction pump 306. Inside 202, the coolant fully fills the flow channel 202 and the hollow channel 207 to cool the battery cell 401. When the internal capacity is greater than the height of the connecting pipe 204, the coolant flows back to the water storage tank 303 through the connecting pipe 204. The pump 306 draws the circulating coolant through the condenser pipe 305, and after cooling, it is introduced back into the flow channel 202 to form a circulating cooling system. After use, the coolant can be replaced by disassembling the sealing mounting plate 309 according to the intensity and amount of use. The four fixing bolts 107 improve the disassembly and assembly efficiency and facilitate quick replacement.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lithium battery water-cooling device for easy coolant replacement, comprising a protective mechanism (1), a loading mechanism (2), a cooling mechanism (3), and a lithium battery assembly (4), characterized in that: The loading mechanism (2) is inserted into the interior of the protective mechanism (1), the cooling mechanism (3) is fixedly connected to the bottom of the loading mechanism (2), and the lithium battery assembly (4) is inserted into the interior of the loading mechanism (2). The protective mechanism (1) consists of a protective shell (101), a ventilation hole (102), a top cover (103), a top cover groove (104), a handle (105), an electrode connector (106), a fixing bolt (107), a locking block (108), a threaded hole (109), and a buffer pad (110). The protective shell (101) is fixedly connected to the surface of the protective mechanism (1). The ventilation hole (102) is opened on the side of the protective shell (101). The top cover (103) is snapped onto the top of the protective shell (101). The top cover groove (104) The handle (105) is rotatably connected to the top of the top cover (103), the electrode connector (106) is fixedly connected to the top of the top cover (103), the fixing bolt (107) is inserted into the inside of the top cover (103) and threaded into the inside of the threaded hole (109), the locking block (108) is fixedly connected to the inner bottom of the protective shell (101), the threaded hole (109) is opened at the top of the locking block (108), and the buffer pad (110) is fixedly connected to the inner side of the locking block (108).

2. The lithium battery water-cooling device for easy coolant replacement according to claim 1, characterized in that: The loading mechanism (2) consists of an assembly shell (201), a flow channel (202), a connecting port (203), a connecting pipe (204), a lock hole (205), a baffle (206), a hollow groove (207), and a support block (208). The assembly shell (201) is inserted into the interior of the protective shell (101). The flow channel (202) is opened inside the assembly shell (201). The connecting port (203) is opened inside the assembly shell (201). The connecting pipe (204) is fixedly connected to the side of the assembly shell (201). The lock hole (205) is fixedly connected to the surface of the assembly shell (201). The baffle (206) is fixedly connected to the surface of the connecting port (203). The hollow groove (207) is opened inside the baffle (206). The support block (208) is fixedly connected to the interior of the hollow groove (207).

3. The lithium battery water-cooling device for easy coolant replacement according to claim 1, characterized in that: The cooling mechanism (3) consists of a water storage shell (301), a return water inlet (302), a water storage tank (303), a cooling assembly (304), a condenser pipe (305), a suction pump (306), a water inlet (307), a water outlet (308), and a sealing mounting plate (309). The water storage shell (301) is fixedly connected to the bottom of the assembly shell (201). The return water inlet (302) is located on the side of the water storage shell (301), and the water storage tank (303) is located inside the water storage shell (301). The cooling assembly (304) is fixedly connected to the inside of the water storage tank (303), the condenser pipe (305) is fixedly connected to the inside of the cooling assembly (304), the suction pump (306) is fixedly connected to the inside of the water storage tank (303) on the side away from the return water port (302), the suction port (307) is opened on the surface of the suction pump (306), the outlet (308) is fixedly connected to the top of the water storage shell (301), and the sealing mounting plate (309) is threadedly connected to the bottom of the water storage shell (301).

4. The lithium battery water-cooling device for easy coolant replacement according to claim 1, characterized in that: The lithium battery assembly (4) consists of a battery cell (401), an electrical connection plate (402), and a connecting harness (403). The battery cell (401) is inserted into the interior of the assembly shell (201). The electrical connection plate (402) is fixedly connected to the top of the battery cell (401). One end of the connecting harness (403) is fixedly connected to the top of the electrical connection plate (402), and the other end is fixedly connected to the interior of the electrode connector (106).

5. A lithium battery water-cooling device for easy replacement of coolant according to claim 2, characterized in that: The lock hole (205) and the threaded hole (109) are located on a vertical line and the fixing bolt (107) passes through the inside of the top cover (103) and the lock hole (205) and is threadedly connected to the threaded hole (109).

6. A lithium battery water-cooling device for easy replacement of coolant according to claim 1, characterized in that: The protective shell (101) is made of high-strength alloy material.

7. A lithium battery water-cooling device for easy replacement of coolant according to claim 2, characterized in that: The top of the connecting pipe (204) is connected to the interior of the flow groove (202), and the connection position is located at the upper end of the surface of the assembly shell (201).

8. A lithium battery water-cooling device for easy replacement of coolant according to claim 2, characterized in that: The assembly shell (201) is inserted into the inside of the card block (108), and the assembly shell (201) and the buffer pad (110) are in contact with each other.

9. A lithium battery water-cooling device for easy replacement of coolant according to claim 3, characterized in that: The cooling assembly (304) has a rectangular opening inside, the condenser tube (305) is fixedly connected inside the rectangular opening, and there is a gap between the condenser tubes (305). The cooling assembly (304) is located in the middle of the water storage tank (303).

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