High-specific-energy battery with circulating heat dissipation shell

Abstract

The invention relates to the field of battery heat dissipation, in particular to a high-specific-energy battery with a circulating heat dissipation shell, which comprises a lower shell, an upper shell is arranged above the lower shell, and the upper shell and the lower shell form a closed space. The air cooling radiator is used for heat dissipation when the heat of the battery pack is low, and when the temperature is high, the water inlet pipe conveys a water source into the water tanks, the water source flows in the water tanks through the connecting pipes and is finally conveyed out through the water outlet pipe, so that circulation of the water source is formed, and the heat of the battery pack is transferred to the heat dissipation frame in the circulation process; heat is transferred to the surface of the water tank through the heat dissipation frame, so that an internal water source takes away the heat, the heat dissipation effect is achieved, a valley-peak staggered heat dissipation mode is adopted, certain heat dissipation cost can be saved, the heat dissipation structure is simple, modular design is adopted, and therefore the cost and complexity of later maintenance are reduced, and the heat dissipation effect is good. Therefore, the problem that the heat dissipation cost of the battery is relatively high is solved.

Description

Technical Field

[0001] The invention relates to the field of battery heat dissipation, and in particular to a high specific energy battery with a circulating heat dissipation shell. Background Art

[0002] Battery heat dissipation is a crucial part of battery technology, especially in new energy vehicles and energy storage systems. Since batteries generate a lot of heat during high-intensity use or charging and discharging, if the heat is not dissipated in a timely and effective manner, it may have a serious impact on the performance, life and safety of the battery.

[0003] The Chinese invention patent application with the announcement number CN115692926A is a wind-cooled heat dissipation energy storage battery box, which includes a box body, a plurality of battery cell cavities are provided in the box body, and a plurality of battery cells are placed in each battery cell cavity; wherein: a return air duct is provided between adjacent battery cell cavities, a heat dissipation duct is provided between adjacent battery cells, and the heat dissipation duct is connected with the return air duct; the box body is provided with an air duct inlet and an air duct outlet, the position of the air duct inlet corresponds to the position of the air inlet of the heat dissipation duct, and the position of the air duct outlet corresponds to the position of the air outlet of the return air duct. The present invention designs the heat dissipation structure of the battery box, adopts the mode of air inlet on both sides of the battery box, heat dissipation duct between the battery cell cavities, and return air duct in the middle of the battery box, and when a heat dissipation fan is provided at the air duct outlet, the return air duct and the heat dissipation duct form a negative pressure, which can effectively make the heat dissipation conditions of air cooling reach the best, thereby improving the temperature balance of the battery itself.

[0004] In the heat dissipation process, existing batteries generally use air cooling for heat dissipation. Although air cooling can dissipate a large amount of heat in the battery pack, as the battery continues to operate, heat energy accumulates in the battery casing, resulting in the fan being unable to dissipate the internal heat in time, thereby affecting the battery's performance and lifespan as well as the stability of operation. A small number of existing batteries use water cooling for heat dissipation to improve the heat dissipation effect of the battery, but this method requires stable post-maintenance. Otherwise, once cooling water leaks, it will cause a safety accident. In addition, since the internal structure of water cooling is relatively complex, its maintenance cost and difficulty are relatively high, and the cost of using water cooling itself is relatively high, thereby indirectly increasing the cost of battery use.

[0005] Therefore, it is necessary to invent a high specific energy battery with a circulating heat dissipation shell to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a high specific energy battery with a circulating heat dissipation shell, which reduces the cost of heat dissipation by alternating between air cooling and water cooling, and solves the problem of complex and high cost of water cooling structure through a modularly designed water tank, so as to solve the problems of high overall battery heat dissipation cost, high subsequent maintenance cost and difficulty in the prior art.

[0007] In order to achieve the above object, the present invention provides the following technical solutions: a high specific energy battery with a circulating heat dissipation shell, comprising a lower shell, an upper shell is arranged above the lower shell, and the upper shell and the lower shell form a closed space, a battery pack is arranged between the upper shell and the lower shell, and a plurality of groups of air-cooled radiators are installed through the inner wall of the closed space formed by the upper shell and the lower shell;

[0008] A circulating heat dissipation component is arranged between the upper shell and the lower shell and is used to dissipate heat from the battery pack;

[0009] The fixing assembly is arranged in the upper shell and the lower shell, and is used to connect and fix the upper shell and the lower shell.

[0010] As a preferred solution of the present invention, the circulating heat dissipation component includes a fixed frame, which is installed in the lower shell body, and a new space is formed between the outer side of the fixed frame and the inner side of the lower shell body, and the fixed frame is connected to the battery pack, and a plurality of through grooves are provided on the inner wall of the fixed frame, and a heat dissipation frame is installed in the through grooves, and the heat dissipation frame is filled with graphite particles, and the heat dissipation frame itself is made of high thermal conductivity ceramics.

[0011] As a preferred solution of the present invention, a plurality of water tanks are fitted between the outer side of the fixing frame and the inner side of the lower shell, and one side of the water tank is fitted with the heat dissipation frame, and the opposite side is fitted with the air-cooled radiator.

[0012] As a preferred solution of the present invention, threaded docking ports are symmetrically installed above the water tank, and a plurality of through holes are opened on the inner wall of the upper shell body, and the through holes are connected with the corresponding threaded docking ports.

[0013] As a preferred solution of the present invention, a water outlet pipe is provided on one side of the water inlet pipe, and the water outlet pipe is connected to a threaded docking interface above a group of water tanks in the same manner as the water inlet pipe. A connecting pipe is provided above the upper shell body, and the connecting pipe is connected to the threaded docking interfaces above two adjacent groups of water tanks in the manner of a water inlet pipe.

[0014] As a preferred solution of the present invention, a water inlet pipe is arranged above the upper shell body, an annular groove is opened on the surface of the water inlet pipe, an internal threaded barrel is sleeved on the water inlet pipe, a positioning ring is installed on the inner wall of the internal threaded barrel, the positioning ring is slidably connected to the annular groove, and the internal threaded barrel is threadedly connected to a threaded docking interface above a group of water tanks.

[0015] As a preferred solution of the present invention, the fixing assembly includes a fixing seat, which is installed at the bottom of the space formed by the lower shell and the fixing frame, and three groups of sliding cavities are evenly opened in the fixing seat.

[0016] As a preferred solution of the present invention, a connecting rod is connected through the sliding cavity, a limiting ring is installed below the connecting rod, and the limiting ring is arranged in the sliding cavity, a spring is sleeved on the connecting rod, and the upper part of the spring is in contact with the sliding cavity, and the lower part of the spring is in contact with the limiting ring.

[0017] As a preferred solution of the present invention, a connecting plate is installed above each group of connecting rods, and two groups of L-shaped card plates 1 are symmetrically installed on the connecting plate. One side of the L-shaped card plate 1 is slidably connected with an L-shaped card plate 2, and the L-shaped card plate 2 is fixedly connected to the bottom of the water tank.

[0018] In the above technical solution, compared with the prior art, the technical effects and advantages provided by the present invention are as follows:

[0019] The air-cooled radiator is used to dissipate heat when the heat of the battery pack is low. When the temperature is high, the water inlet pipe transports water to the water tank, and flows in each water tank through the connecting pipe, and is finally transported out through the water outlet pipe, thereby forming a water circulation. During the circulation process, the heat of the battery pack will be transferred to the heat dissipation frame, and the heat will be transferred to the surface of the water tank through the heat dissipation frame, so that the internal water source will take away the heat, thereby forming a heat dissipation effect. This method of valley-peak staggered heat dissipation can save a certain amount of heat dissipation cost, and this heat dissipation structure is relatively simple and adopts a modular design, thereby reducing the cost and complexity of later maintenance, thereby solving the problem of high battery heat dissipation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall disassembled structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal layout structure of the lower shell of the present invention;

[0024] Figure 4 It is a schematic diagram of the partial planing structure of the lower shell of the present invention;

[0025] Figure 5 It is a schematic diagram of the water tank structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the connection structure between the water inlet pipe and the internal threaded barrel of the present invention;

[0027] Figure 7 For the present invention Figure 4 Enlarged structural diagram at A in the middle.

[0028] Description of reference numerals:

[0029] 001, lower shell; 101, upper shell; 102, battery pack; 103, air-cooled radiator; 002, circulating heat dissipation component; 201, fixing frame; 202, through groove; 203, heat dissipation frame; 204, water tank; 205, threaded docking port; 206, through hole; 207, water inlet pipe; 208, water outlet pipe; 209, annular groove; 210, internal threaded cylinder; 211, positioning ring; 212, connecting pipe; 003, fixing component; 301, fixing seat; 302, sliding cavity; 303, connecting rod; 304, limiting ring; 305, spring; 306, connecting plate; 307, L-shaped card plate one; 308, L-shaped card plate two. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] The present invention provides Figure 1-7 A high specific energy battery with a circulating heat dissipation shell shown in the figure comprises a lower shell 001, an upper shell 101 is arranged above the lower shell 001, and the upper shell 101 and the lower shell 001 form a closed space, a battery pack 102 is arranged between the upper shell 101 and the lower shell 001, and a plurality of groups of air-cooled radiators 103 are installed through the inner wall of the closed space formed by the upper shell 101 and the lower shell 001;

[0032] The air-cooled radiator 103 is used to dissipate heat from the battery pack 102;

[0033] The circulating heat dissipation component 002 is disposed between the upper housing 101 and the lower housing 001 and is used to dissipate heat for the battery pack 102;

[0034] The fixing assembly 003 is disposed inside the upper shell 101 and the lower shell 001 and is used to connect and fix the upper shell 101 and the lower shell 001 .

[0035] Furthermore, in the above structure, the circulating heat dissipation component 002 includes a fixed frame 201, which is installed in the lower shell 001, and a new space is formed between the outer side of the fixed frame 201 and the inner side of the lower shell 001, and the inside of the fixed frame 201 is connected to the battery pack 102, and multiple groups of through grooves 202 are opened on the inner wall of the fixed frame 201, and a heat dissipation frame 203 is installed in the through grooves 202, and the heat dissipation frame 203 is filled with graphite particles, and the heat dissipation frame 203 itself is made of high thermal conductivity ceramics.

[0036] Through the high thermal conductivity ceramic of the heat dissipation frame 203 itself and the graphite particles inside, the heat dissipation frame 203 can absorb the heat generated by the battery pack 102 and transfer it to the outside.

[0037] Furthermore, in the above structure, a plurality of water tanks 204 are connected between the outer side of the fixing frame 201 and the inner side of the lower shell 001 , and one side of the water tank 204 is connected to the heat dissipation frame 203 , and the opposite side is connected to the air-cooled radiator 103 .

[0038] The heat generated by the heat dissipation frame 203 can be transferred to the internal water source through the water tank 204, so that the water source can take away the heat.

[0039] Furthermore, in the above structure, threaded docking ports 205 are symmetrically installed above the water tank 204 , and a plurality of through holes 206 are opened on the inner wall of the upper shell 101 , and the through holes 206 are connected with the corresponding threaded docking ports 205 .

[0040] Furthermore, in the above structure, each water tank 204 is connected through a pipeline assembly, which includes an inlet pipe 207, an outlet pipe 208, and a plurality of connecting pipes 212. The inlet pipe 207 is connected to a threaded docking port 205 of the first water tank 204, the outlet pipe 208 is connected to a threaded docking port 205 of the last water tank 204, and the two threaded docking ports 205 of the middle water tank 204 are respectively connected to a threaded docking port 205 of the water tanks 204 before and after it through connecting pipes 212. A water outlet pipe 208 is provided on one side of the inlet pipe 207, and the water outlet pipe 208 is connected to a threaded docking port 205 above a group of water tanks 204 in the same manner as the inlet pipe 207. A connecting pipe 212 is provided above the upper shell 101, and the connecting pipe 212 is connected to the threaded docking ports 205 above two adjacent groups of water tanks 204 in the manner of the inlet pipe 207.

[0041] Water can be transported to each group of water tanks 204 through the water inlet pipe 207, and the water can flow in each group of water tanks 204 through the connecting pipe 212, and finally the water is transported away from each group of water tanks 204 through the water outlet pipe 208, so that the water can circulate in each group of water tanks 204.

[0042] Furthermore, in the above structure, a water inlet pipe 207 is arranged above the upper shell 101, and an annular groove 209 is opened on the surface of the water inlet pipe 207. An internal threaded tube 210 is sleeved on the water inlet pipe 207, and a positioning ring 211 is installed on the inner wall of the internal threaded tube 210. The positioning ring 211 is slidably connected to the annular groove 209, and the internal threaded tube 210 is screwed to a threaded docking port 205 above a group of water tanks 204.

[0043] The internal threaded barrel 210 can stably rotate by the cooperation of the positioning ring 211 and the annular groove 209 , and can be quickly installed or detached from the threaded docking port 205 during the rotation process, thereby realizing the rapid installation and removal of the connecting pipe 212 .

[0044] As a preferred solution of the present invention, two groups of fixing components 003 are provided, and the two groups of fixing components 003 are symmetrically arranged. The fixing components 003 include a fixing seat 301, which is installed at the bottom of the space formed by the lower shell 001 and the fixing frame 201, and three groups of sliding cavities 302 are evenly opened in the fixing seat 301.

[0045] Furthermore, in the above structure, each sliding cavity 302 is connected with a connecting rod 303, a limiting ring 304 is installed below the connecting rod 303, and the limiting ring 304 is arranged in the sliding cavity 302, a spring 305 is sleeved on the connecting rod 303, and the upper part of the spring 305 is in contact with the sliding cavity 302, and the lower part of the spring 305 is in contact with the limiting ring 304.

[0046] The spring 305 and the limiting ring 304 cooperate to keep the position of the connecting rod 303 in the sliding cavity 302 .

[0047] Furthermore, in the above structure, a connecting plate 306 is installed above each group of connecting rods 303, and two groups of L-shaped card plates 1 307 are symmetrically installed on the connecting plate 306. An L-shaped card plate 2 308 is slidably connected to one side of the L-shaped card plate 1 307, and the L-shaped card plate 2 308 is fixedly connected to the bottom of the water tank 204.

[0048] By cooperating with L-shaped clamp plate 2 308 and L-shaped clamp plate 1 307, each group of water tanks 204 on both sides can be fixedly connected with the corresponding connecting plate 306. When the internal threaded tube 210 and the threaded docking port 205 are screwed and docked, the water tank 204 will move upward as a whole, so that the spring 305 is squeezed, so that the internal threaded tube 210 squeezes the upper shell 101, so that the upper shell 101 and the lower shell 001 are firmly connected.

[0049] like Figure 1-7As shown, the heat generated by the battery pack 102 is discharged between the upper shell 101 and the lower shell 001 through the air-cooled radiator 103. When the heat of the battery pack 102 is high, the water source in the water tank 204 is circulated and transported through the water inlet pipe 207, the water outlet pipe 208 and the connecting pipe 212. At this time, the battery pack 102 will transfer the heat to the heat dissipation frame 203, so that the heat dissipation frame 203 will eventually transfer the heat to the surface of the water tank 204, so that the water source can quickly take away the heat, ensuring the temperature of the battery pack 102 is stable. In addition, since each group of water tanks 204 adopts a modular design, a single group of water tanks 204 can be replaced separately, which reduces the cost of use and simplifies the complexity of the internal structure of the water-cooled heat dissipation. This design also improves the convenience of troubleshooting and maintenance. In addition, the combination of water cooling and air cooling can use air cooling when the power of the battery pack 102 is low, and use water cooling circulation to dissipate heat when the temperature rises. This structure is relatively simple and has a low production cost, which greatly reduces the cost of using water cooling.

[0050] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high specific energy battery with a circulating heat dissipation housing, comprising a lower housing (001), characterized in that: An upper shell (101) is arranged above the lower shell (001), and the upper shell (101) and the lower shell (001) form a closed space, a battery pack (102) is arranged between the upper shell (101) and the lower shell (001), and a plurality of groups of air-cooled radiators (103) are installed through the inner wall of the closed space formed by the upper shell (101) and the lower shell (001); A circulating heat dissipation component (002) is arranged between the upper housing (101) and the lower housing (001) and is used to dissipate heat from the battery pack (102); The fixing assembly (003) is arranged in the upper shell (101) and the lower shell (001) and is used to connect and fix the upper shell (101) and the lower shell (001).

2. A high specific energy battery with a circulating heat dissipation housing according to claim 1, characterized in that: The circulating heat dissipation component (002) comprises a fixing frame (201), the fixing frame (201) is installed in the lower shell (001), and a new space is formed between the outer side of the fixing frame (201) and the inner side of the shell (001), and the inside of the fixing frame (201) is connected to the battery pack (102), and a plurality of through grooves (202) are provided on the inner wall of the fixing frame (201), a heat dissipation frame (203) is installed in the through grooves (202), and the inside of the heat dissipation frame (203) is filled with graphite particles, and the heat dissipation frame (203) itself is made of high thermal conductivity ceramics.

3. A high specific energy battery with a circulating heat dissipation casing according to claim 2, characterized in that: A plurality of groups of water tanks (204) are fitted between the outer side of the fixing frame (201) and the inner side of the shell (001), and one side of the water tank (204) is fitted with the heat dissipation frame (203), and the opposite side is fitted with the air-cooled radiator (103).

4. A high specific energy battery with a circulating heat dissipation casing according to claim 3, characterized in that: A threaded docking port (205) is symmetrically mounted above the water tank (204), and a plurality of through holes (206) are provided on the inner wall of the upper shell (101), wherein the through holes (206) are connected through the corresponding threaded docking ports (205).

5. A high specific energy battery with a circulating heat dissipation casing according to claim 1, characterized in that: A water inlet pipe (207) is arranged above the upper shell (101), and an annular groove (209) is provided on the surface of the water inlet pipe (207). An internal threaded tube (210) is sleeved on the water inlet pipe (207), and a positioning ring (211) is installed on the inner wall of the internal threaded tube (210). The positioning ring (211) is slidably connected to the annular groove (209), and the internal threaded tube (210) is threadedly connected to a threaded docking port (205) above a group of water tanks (204).

6. A high specific energy battery with a circulating heat dissipation casing according to claim 5, characterized in that: A water outlet pipe (208) is provided on one side of the water inlet pipe (207), and the water outlet pipe (208) is connected to a threaded docking port (205) above a group of water tanks (204) in the same manner as the water inlet pipe (207). A connecting pipe (212) is provided above the upper shell (101), and the connecting pipe (212) is connected to the threaded docking ports (205) above two adjacent groups of water tanks (204) in the same manner as the water inlet pipe (207).

7. A high specific energy battery with a circulating heat dissipation casing according to claim 1, characterized in that: The fixing assembly (003) comprises a fixing seat (301), wherein the fixing seat (301) is installed at the bottom of the space formed by the lower shell (001) and the fixing frame (201), and three groups of sliding cavities (302) are evenly arranged in the fixing seat (301).

8. A high specific energy battery with a circulating heat dissipation casing according to claim 7, characterized in that: A connecting rod (303) is connected through the sliding cavity (302), a limiting ring (304) is installed below the connecting rod (303), and the limiting ring (304) is arranged in the sliding cavity (302), a spring (305) is sleeved on the connecting rod (303), and the upper part of the spring (305) is in contact with the sliding cavity (302), and the lower part of the spring (305) is in contact with the limiting ring (304).

9. A high specific energy battery with a circulating heat dissipation casing according to claim 8, characterized in that: A connecting plate (306) is installed above each group of the connecting rods (303), and two groups of L-shaped card plates (307) are symmetrically installed on the connecting plate (306). One side of the L-shaped card plate (307) is slidably connected to an L-shaped card plate (308), and the L-shaped card plate (308) is fixedly connected to the bottom of the water tank (204).

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