Energy storage battery with cooling system
By setting a storage seat and a synchronously moving piston in the box of the energy storage battery, the coolant and gas are processed in the sealing chamber, which solves the problem of coolant leakage during the battery pack removal process, ensuring the smooth progress of the battery installation process.
Patent Information
- Application Number
- CN202421173380.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-05-27
AI Technical Summary
During the disassembly of the existing energy storage batteries with cooling systems, the coolant is prone to flow out of the battery pack, resulting in installation impact.
An energy storage battery is designed, in which a storage seat is provided in the box, and the first and second pistons are provided at the bottom of the storage seat. By synchronously moving the piston in reverse, coolant is discharged from the cooling chamber into the sealed liquid chamber, and gas is injected from the sealed air chamber into the cooling chamber, thereby avoiding coolant leakage during the disassembly.
It effectively avoids the leakage of coolant during the battery cell disassembly process, ensuring that the battery installation process is not affected.
Smart Images
Figure CN222763029U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of energy storage batteries, in particular to an energy storage battery with a cooling system. Background Art
[0002] Energy storage batteries, especially lithium batteries, generate a lot of heat when working, causing their own temperature to rise, affecting their charging and discharging performance and service life, and require a cooling device to cool them.
[0003] Existing energy storage batteries with cooling systems are cooled by providing a cooling water cavity in the battery pack and injecting coolant into the cooling water cavity. In order to enhance the cooling effect of the energy storage battery, the coolant in the battery pack needs to be connected and circulated with the coolant in the box. When removing the battery pack from the box, the battery pack needs to be separated from the box. During this process, the coolant in the cooling water cavity will flow out into the box, affecting the subsequent installation of the battery pack. Utility Model Content
[0004] The purpose of the utility model is to provide an energy storage battery with a cooling system in view of the above-mentioned deficiencies in the prior art.
[0005] The purpose of the utility model is achieved through the following technical solutions: an energy storage battery with a cooling system, comprising a box body and a battery cell;
[0006] A storage seat is provided in the box body for lifting and lowering movement; a first piston is provided at the bottom of one end of the storage seat for lifting and lowering movement; a second piston is provided at the bottom of the other end of the storage seat for movement; the first piston and the second piston move synchronously in opposite directions; a sealed air cavity is formed between the first piston and the storage seat; a sealed liquid cavity is formed between the second piston and the storage seat; an air port connected to the sealed air cavity is provided at the top of one end of the storage seat; a liquid port connected to the sealed liquid cavity is provided at the top of the other end of the storage seat;
[0007] The battery cell is detachably connected to the top of the storage seat; a cooling cavity is arranged around the outer periphery of the battery cell; an air hole connected to the top of the cooling cavity is arranged at the bottom of one end of the battery cell; and a liquid hole connected to the bottom of the cooling cavity is arranged at the bottom of the other end of the battery cell.
[0008] The utility model is further configured as follows: an air pipe is provided in the cooling cavity; the bottom of the air pipe is communicated with the air hole; and the top of the air pipe is arranged at the top of the cooling cavity.
[0009] The utility model is further configured that a return spring is provided between the bottom of the storage seat and the bottom of the box body.
[0010] The utility model is further configured that a cover plate is detachably connected to the top of the box body.
[0011] The utility model is further configured that a first inclined groove and a second inclined groove are provided on one side of the box body; the distance between the first inclined groove and the second inclined groove gradually increases from the bottom of the box body to the top of the box body;
[0012] A guide seat is provided on one side of the first piston; the guide seat is provided with a third inclined groove and a fourth inclined groove; the distance between the third inclined groove and the fourth inclined groove gradually decreases from the bottom to the top of the guide seat;
[0013] A first sliding pin is movably arranged between the first inclined groove and the third inclined groove; and a second sliding pin is movably arranged between the second inclined groove and the fourth inclined groove.
[0014] The utility model is further configured that a limiting groove is provided on the other side of the box body; and the second piston is provided with a limiting seat matched with the limiting groove.
[0015] The utility model is further configured such that the first inclined groove is symmetrically arranged with the second inclined groove; and the third inclined groove is symmetrically arranged with the fourth inclined groove.
[0016] The utility model is further configured that the bottom of the storage seat is provided with a hinge seat; the bottom of the first piston is provided with a first strip groove; the bottom of the second piston is provided with a second strip groove;
[0017] The energy storage battery with a cooling system also includes a connecting rod; the middle part of the connecting rod is hinged to the hinge seat; one end of the connecting rod is slidably hinged to the first strip groove; the other end of the connecting rod is slidably hinged to the second strip groove.
[0018] The beneficial effects of the utility model are as follows: the utility model enables the first piston to move upward and the second piston to move downward, thereby discharging the coolant in the cooling chamber into the sealed liquid chamber, and injecting the gas in the sealed gas chamber into the cooling chamber, so that there is no coolant in the cooling chamber, thereby avoiding the leakage of coolant in the cooling chamber during the disassembly of the electric unit. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The utility model is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the utility model. A person skilled in the art can obtain other drawings based on the following drawings without creative work.
[0020] Figure 1 It is a structural schematic diagram of the utility model;
[0021] Figure 2 This is a schematic diagram of the structure of the utility model after the cover plate is hidden;
[0022] Figure 3 This is a schematic diagram of the structure of the utility model after the cover plate and the battery cell are hidden;
[0023] Figure 4 This is a schematic diagram of the structure of the utility model from another perspective after the cover plate and the battery cell are hidden;
[0024] Figure 5 It is a cross-sectional view of the first state of the utility model;
[0025] Figure 6 is a cross-sectional view of the utility model in the second state;
[0026] Figure 7 It is the internal structure diagram of the utility model;
[0027] Figure 8 It is a structural schematic diagram of a battery cell of the utility model;
[0028] Fig. 9 This is a schematic structural diagram of the battery cell of the utility model from another perspective;
[0029] Among them: 1. box body; 11. return spring; 12. cover plate; 2. battery cell; 21. cooling chamber; 22. air hole; 23. liquid hole; 24. air pipe; 3. storage seat; 31. air port; 32. liquid port; 4. first piston; 41. sealed air chamber; 5. second piston; 51. sealed liquid chamber; 61. first inclined groove; 62. second inclined groove; 63. first sliding pin; 64. second sliding pin; 7. guide seat; 71. third inclined groove; 72. fourth inclined groove; 81. limit groove; 82. limit seat; 91. hinge seat; 92. first strip groove; 93. second strip groove; 94. connecting rod. DETAILED DESCRIPTION
[0030] The utility model is further described in conjunction with the following embodiments.
[0031] Depend on Figures 1 to 9 It can be seen that the energy storage battery with a cooling system described in this embodiment includes a box body 1 and a battery cell 2;
[0032] A storage seat 3 is provided in the box body 1 for lifting and lowering movement; a first piston 4 is provided at the bottom of one end of the storage seat 3 for lifting and lowering movement; a second piston 5 is provided at the bottom of the other end of the storage seat 3 for lifting and lowering movement; the first piston 4 and the second piston 5 move synchronously in opposite directions; a sealed air cavity 41 is formed between the first piston 4 and the storage seat 3; a sealed liquid cavity 51 is formed between the second piston 5 and the storage seat 3; an air port 31 communicating with the sealed air cavity 41 is provided at the top of one end of the storage seat 3; a liquid port 32 communicating with the sealed liquid cavity 51 is provided at the top of the other end of the storage seat 3; wherein the sealed liquid cavity 51 stores cooling liquid;
[0033] The battery cell 2 is detachably connected to the top of the storage seat 3; a cooling cavity 21 is arranged around the outer periphery of the battery cell 2; an air hole 22 communicating with the top of the cooling cavity 21 is arranged at the bottom of one end of the battery cell 2; a liquid hole 23 communicating with the bottom of the cooling cavity 21 is arranged at the bottom of the other end of the battery cell 2.
[0034] Specifically, the energy storage battery with a cooling system described in this embodiment, when installing the battery cell 2 and the box body 1, first install the battery cell 2 on the top of the storage seat 3, so that the air hole 22 is connected with the air port 31, and the liquid hole 23 is connected with the liquid port 32;
[0035] Then, when the battery cell 2 is pressed downward, the first piston 4 moves downward and the second piston 5 moves upward, so that the gas in the cooling chamber 21 can be drawn into the sealed air chamber 41, and the coolant in the sealed liquid chamber 51 is injected into the cooling chamber 21, so that the battery cell 2 can be effectively cooled.
[0036] When the battery cell 2 is disassembled, the first piston 4 moves upward and the second piston 5 moves downward, so that the coolant in the cooling chamber 21 can be discharged into the sealed liquid chamber 51, and the gas in the sealed gas chamber 41 is injected into the cooling chamber 21, so that there is no coolant in the cooling chamber 21, thereby avoiding the leakage of coolant in the cooling chamber 21 during the disassembly of the battery cell.
[0037] In the energy storage battery with a cooling system described in this embodiment, an air pipe 24 is provided in the cooling cavity 21; the bottom of the air pipe 24 is communicated with the air hole 22; and the top of the air pipe 24 is provided at the top of the cooling cavity 21. Specifically, by providing the air pipe 24, after the battery cell 2 and the storage seat 3 are installed, the air port 31 of the storage seat 3 can be communicated with the top of the cooling cavity 21 through the air pipe 24, thereby preventing the coolant in the cooling cavity 21 from flowing into the sealed air cavity 41.
[0038] In the energy storage battery with a cooling system described in this embodiment, a reset spring 11 is provided between the bottom of the storage seat 3 and the bottom of the box body 1. The above arrangement facilitates the storage seat 3 to be reset.
[0039] In the energy storage battery with a cooling system described in this embodiment, the top of the box body 1 is detachably connected with a cover plate 12. The above arrangement can protect the battery cell 2.
[0040] In the energy storage battery with a cooling system described in this embodiment, a first inclined groove 61 and a second inclined groove 62 are provided on one side of the box body 1; the distance between the first inclined groove 61 and the second inclined groove 62 gradually increases from the bottom to the top of the box body 1; a guide seat 7 is provided on one side of the first piston 4; the guide seat 7 is provided with a third inclined groove 71 and a fourth inclined groove 72; from the bottom to the top of the guide seat 7, the distance between the third inclined groove 71 and the fourth inclined groove 72 gradually decreases; a first sliding pin 63 is movably provided between the first inclined groove 61 and the third inclined groove 71; a second sliding pin 64 is movably provided between the second inclined groove 62 and the fourth inclined groove 72.
[0041] Specifically, when the battery cell 2 needs to be installed, the cover plate 12 is first opened. Under the action of the return spring 11, the first piston 4, the second piston 5 and the storage seat 3 move to the top of the box body 1. Figure 6 As shown, under the action of the first sliding pin 63, the second sliding pin 64, the first inclined groove 61, the second inclined groove 62, the third inclined groove 71 and the fourth inclined groove 72, the first piston 4 moves upward relative to the storage seat 3, and the volume of the sealed air chamber 41 is smaller; at the same time, since the first piston 4 and the second piston 5 move synchronously in the opposite direction, the volume of the sealed liquid chamber 51 is larger, and coolant is stored in the sealed liquid chamber 51.
[0042] After the battery cell 2 is installed on the top of the storage seat 3, the air hole 22 is connected to the air port 31, and the liquid hole 23 is connected to the liquid port 32; at this time, the battery cell 2 is pressed down, so that the storage seat 3 is lowered until the bottom of the storage seat moving box 1 is reached, and then the cover plate 12 is closed to complete the installation of the battery cell 2, forming a Figure 5 State shown; during the descending process of the storage seat 3, under the action of the first sliding pin 63, the second sliding pin 64, the first inclined groove 61, the second inclined groove 62, the third inclined groove 71 and the fourth inclined groove 72, the first piston 4 gradually moves downward relative to the storage seat 3. At the same time, since the first piston 4 and the second piston 5 move synchronously in the opposite direction, the second piston 5 gradually moves upward relative to the storage seat 3, so that the gas in the cooling chamber 21 can be drawn into the sealed air chamber 41, and the coolant in the sealed liquid chamber 51 can be injected into the cooling chamber 21, so that the battery cell 2 can be effectively cooled.
[0043] When the battery cell 2 needs to be disassembled, the cover 12 is first opened. Under the action of the return spring 11, the first piston 4, the second piston 5 and the storage seat 3 are moved back to the top of the box body 1. During the movement of the storage seat 3, under the action of the first sliding pin 63, the second sliding pin 64, the first inclined groove 61, the second inclined groove 62, the third inclined groove 71 and the fourth inclined groove 72, the first piston 4 gradually moves upward relative to the storage seat 3. At the same time, since the first piston 4 and the second piston 5 move in opposite directions synchronously, the second piston 5 gradually moves downward relative to the storage seat 3, so that the coolant in the cooling chamber 21 can be discharged into the sealed liquid chamber 51, and the gas in the sealed gas chamber 41 is injected into the cooling chamber 21, so that there is no coolant in the cooling chamber 21, thereby avoiding the leakage of coolant in the cooling chamber 21 during the disassembly of the battery cell.
[0044] In the energy storage battery with a cooling system described in this embodiment, the other side of the box body 1 is provided with a limiting groove 81; the second piston 5 is provided with a limiting seat 82 that cooperates with the limiting groove 81. Specifically, the above arrangement enables the second piston 5 and the storage seat 3 to be stably raised and lowered.
[0045] In the energy storage battery with a cooling system described in this embodiment, the first inclined groove 61 is symmetrically arranged with the second inclined groove 62; the third inclined groove 71 is symmetrically arranged with the fourth inclined groove 72. The above arrangement makes the overall structure more stable and reliable.
[0046] In the energy storage battery with a cooling system described in this embodiment, the bottom of the storage seat 3 is provided with an articulated seat 91; the bottom of the first piston 4 is provided with a first strip groove 92; the bottom of the second piston 5 is provided with a second strip groove 93; the energy storage battery with a cooling system further includes a connecting rod 94; the middle part of the connecting rod 94 is articulated with the articulated seat 91; one end of the connecting rod 94 is slidably articulated in the first strip groove 92; the other end of the connecting rod 94 is slidably articulated in the second strip groove 93. Specifically, through the above arrangement, the first piston 4 and the second piston 5 can achieve synchronous reverse movement.
[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.
Claims
1. An energy storage battery with a cooling system, characterized in that: Including a box body and a battery cell; A storage seat is provided in the box body for lifting and lowering movement; a first piston is provided at the bottom of one end of the storage seat for lifting and lowering movement; a second piston is provided at the bottom of the other end of the storage seat for movement; the first piston and the second piston move synchronously in opposite directions; a sealed air cavity is formed between the first piston and the storage seat; a sealed liquid cavity is formed between the second piston and the storage seat; an air port connected to the sealed air cavity is provided at the top of one end of the storage seat; a liquid port connected to the sealed liquid cavity is provided at the top of the other end of the storage seat; The battery cell is detachably connected to the top of the storage seat; a cooling cavity is arranged around the outer periphery of the battery cell; an air hole connected to the top of the cooling cavity is arranged at the bottom of one end of the battery cell; and a liquid hole connected to the bottom of the cooling cavity is arranged at the bottom of the other end of the battery cell.
2. The energy storage battery with a cooling system according to claim 1, characterized in that: An air pipe is arranged in the cooling cavity; the bottom of the air pipe is communicated with the air hole; and the top of the air pipe is arranged at the top of the cooling cavity.
3. The energy storage battery with a cooling system according to claim 1, characterized in that: A return spring is arranged between the bottom of the storage seat and the bottom of the box body.
4. The energy storage battery with a cooling system according to claim 1, characterized in that: The top of the box body is detachably connected with a cover plate.
5. The energy storage battery with a cooling system according to claim 1, characterized in that: A first inclined groove and a second inclined groove are provided on one side of the box body; the distance between the first inclined groove and the second inclined groove gradually increases from the bottom to the top of the box body; A guide seat is provided on one side of the first piston; the guide seat is provided with a third inclined groove and a fourth inclined groove; the distance between the third inclined groove and the fourth inclined groove gradually decreases from the bottom to the top of the guide seat; A first sliding pin is movably arranged between the first inclined groove and the third inclined groove; and a second sliding pin is movably arranged between the second inclined groove and the fourth inclined groove.
6. The energy storage battery with a cooling system according to claim 5, characterized in that: A limiting groove is arranged on the other side of the box body; and a limiting seat matching with the limiting groove is arranged on the second piston.
7. The energy storage battery with a cooling system according to claim 5, characterized in that: The first inclined groove is symmetrically arranged with the second inclined groove; the third inclined groove is symmetrically arranged with the fourth inclined groove.
8. The energy storage battery with a cooling system according to claim 1, characterized in that: The bottom of the storage seat is provided with a hinge seat; the bottom of the first piston is provided with a first strip groove; the bottom of the second piston is provided with a second strip groove; The energy storage battery with a cooling system also includes a connecting rod; the middle part of the connecting rod is hinged to the hinge seat; one end of the connecting rod is slidably hinged to the first strip groove; the other end of the connecting rod is slidably hinged to the second strip groove.