Cooling device for new energy battery compartment

Abstract

The utility model discloses a cooling device of new energy battery cabin, including battery cabin main part, battery cabin main part includes the bottom cabin structure, pressing plate structure and top mica board that set gradually from below to above, is equipped with battery groove and control groove in the bottom cabin structure, is equipped with BMS controller in the control groove, is equipped with electric core temperature control structure in the battery groove, and electric core temperature control structure sets up by cross -row electric core group, and water cooling board is composed, and water cooling board is equipped with circulating inlet pipe and circulating outlet pipe, and the flow control valve and first temperature sensor are connected to all and be equipped with on circulating inlet pipe and circulating outlet pipe. The utility model discloses compared with prior art's advantage lies in: the utility model discloses through setting up water cooling board between two electric core groups, through the temperature response of single water cooling board, water flow control operation, can guarantee single board temperature control, thereby can accurate battery pack cooling operation.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery compartment technology, specifically to a cooling device used in new energy battery compartments. Background Technology

[0002] New energy refers to energy sources other than traditional energy sources such as coal, oil, and natural gas. It is also known as unconventional energy and refers to various forms of energy other than traditional energy sources.

[0003] In recent years, new energy batteries have become quite common. However, batteries can overheat when used for a long time, so cooling devices are needed. The most effective and common method is water cooling. Existing water cooling methods are all simple overall water cooling operations. However, battery overheating is sometimes localized, and it is not possible to control and cool down the temperature in a timely manner according to the situation. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a cooling device for a new energy battery compartment that provides more precise temperature control and cooling, addressing the shortcomings mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a cooling device for a new energy battery compartment, including a battery compartment body, the battery compartment body including a bottom compartment structure, a pressure plate structure and a top mica plate arranged sequentially from bottom to top, the bottom compartment structure is provided with a battery slot and a control slot, the control slot is provided with a BMS controller, the battery slot is provided with multiple sets of cell temperature control structures, the cell temperature control structure is composed of horizontally arranged cell groups and a water cooling plate; The water-cooled plate is equipped with a circulating water inlet pipe and a circulating water outlet pipe, and a flow control valve and a first temperature sensor are connected to both the circulating water inlet pipe and the circulating water outlet pipe.

[0006] Furthermore, the cell temperature control structure includes a first support beam plate and a second support beam plate disposed on both sides of the horizontal cell assembly, which facilitates the horizontal stable clamping operation of the horizontal cell assembly.

[0007] Furthermore, multiple circulating water inlet pipes extend into the control tank and are connected to a first water distribution pipe, and multiple circulating water outlet pipes extend into the control tank and are connected to a second water distribution pipe. Both the circulating water inlet pipes and the circulating water outlet pipes are connected to a one-way valve to facilitate the control of the water flow direction.

[0008] Furthermore, the first and second branch pipes are respectively connected to an inlet main pipe and an outlet main pipe, and both the inlet main pipe and the outlet main pipe are connected to a second temperature sensor to facilitate the control of the inlet and outlet water temperature.

[0009] Furthermore, the water-cooled plate is equipped with an S-shaped water channel that connects to the circulating water inlet pipe and the circulating water outlet pipe, which facilitates increasing the temperature control area.

[0010] The advantages of the cooling device for the new energy battery compartment of this utility model compared with the prior art are as follows: This utility model sets a water-cooled plate between two battery cells, and through temperature sensing and water flow control of a single water-cooled plate, it can ensure temperature control of a single plate, thereby enabling precise cooling of the battery pack. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the cooling device for the new energy battery compartment.

[0012] Figure 2 This is an exploded structural diagram of the cooling device for the new energy battery compartment.

[0013] Figure 3 This is a side sectional view of the bottom structure of the cooling device for the new energy battery compartment.

[0014] Figure 4 This is a partial top-view schematic diagram of the cell temperature control structure of the cooling device in the new energy battery compartment.

[0015] As shown in the figure: 1. Battery compartment main body; 2. Bottom compartment structure; 3. Battery slot; 4. Control slot; 5. Cell temperature control structure; 6. Pressure plate structure; 7. Mica plate; 8. BMS controller; 9. Horizontal cell assembly; 10. Water-cooled plate; 11. First support beam plate; 12. Second support beam plate; 13. S-shaped water channel; 14. Circulating water inlet pipe; 15. Circulating water outlet pipe; 16. Main inlet pipe; 17. First branch pipe; 18. Main outlet pipe; 19. Second branch pipe; 20. One-way valve; 21. Flow control valve; 22. First temperature sensor; 23. Second temperature sensor. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings.

[0017] Combined with appendix Figure 1-4The cooling device for the new energy battery compartment includes a battery compartment body 1. The battery compartment body 1 includes a bottom compartment structure 2, a pressure plate structure 6, and a top mica plate 7 arranged sequentially from bottom to top. The pressure plate structure 6 is equipped with a CSS integrated busbar and high and low voltage connection structures. During assembly, various insulating coatings and blue films are applied, and aerogel is applied. The bottom compartment structure 2 is equipped with pipes and wiring connection holes, which are common processes and structures in this field and therefore not described in detail. The bottom compartment structure 2 contains a battery compartment 3 and a control compartment 4. The control compartment 4 contains a BMS controller 8, and the battery compartment 3 contains multiple sets of cell temperature control structures 5. The above structure is a common new energy battery pack. Among them, the BMS (Battery Management System) of the BMS controller 8 is a battery management system, which is an electronic system used to monitor and control the battery status and belongs to the prior art. The CCS integrated busbar is mainly used to realize high-voltage series and parallel connection of battery cells, as well as the temperature and voltage sampling function of the battery. The CCS integrated busbar is mainly composed of signal acquisition components (such as FPC, PCB, FFC, etc.), plastic structural parts, copper and aluminum busbars, etc., which are connected into a whole through processes such as hot pressing or riveting. Compared with traditional wire harness busbars, the CCS integrated busbar has the advantages of simple production and processing, high degree of automation, saving assembly labor costs, one-piece hot pressing molding, good circuit sealing, good oxidation resistance, good corrosion resistance, high reliability, FPC / PCB circuit overcurrent protection design to protect battery cells, and high safety performance.

[0018] The cell temperature control structure 5 is composed of a horizontal row of cell groups 9 and a water-cooled plate 10. The cell temperature control structure 5 includes a first support beam plate 11 and a second support beam plate 12 arranged on both sides of the horizontal row of cell groups 9. Both the first support beam plate 11 and the second support beam plate 12 are made of metal plates with good thermal conductivity, such as aluminum plates, to facilitate heat conduction. The cell temperature control structure 5 adopted in this utility model is composed of a row of horizontal cell groups 9 and a row of water-cooled plates 10, which can ensure large-area temperature control and cooling of the horizontal row of cell groups 9 and ensure cooling efficiency. The water-cooled plate 10 is provided with an S-shaped water channel 13 connected to the circulating water inlet pipe 14 and the circulating water outlet pipe 15. Setting the water-cooled plate 10 as an S-shaped water channel 13 can ensure large-area cooling while ensuring unidirectional water flow, that is, the water flow will only flow in one direction, ensuring the stability of the cooling water.

[0019] The water-cooled plate 10 is equipped with a circulating water inlet pipe 14 and a circulating water outlet pipe 15. A flow control valve 21 and a first temperature sensor 22 are connected to both the circulating water inlet pipe 14 and the circulating water outlet pipe 15. Alternatively, to save costs, only the circulating water outlet pipe 15 may be equipped with the flow control valve 21 and the first temperature sensor 22. Multiple circulating water inlet pipes 14 extend into the control tank 4 and are connected to a first water distribution pipe 17. Multiple circulating water outlet pipes 15 extend into the control tank 4 and are connected to a second water distribution pipe 19. Both the circulating water inlet pipe 14 and the circulating water outlet pipe 15 are connected to a one-way valve 20. The first water distribution pipe 17 and the second water distribution pipe 19, in conjunction with the one-way valve 20, ensure the water flow direction during operation. Simultaneously, the circulating water inlet pipe 14 and the circulating water outlet pipe 15... A flow control valve 21 and a first temperature sensor 22 are installed on the water pipe 15. Under normal circumstances, the flow rate of all water-cooled plates is the same. However, when the temperature of the first temperature sensor 22 of a certain water-cooled plate 10 changes significantly, the flow rate of the flow control valve 21 can be adjusted accordingly. By increasing the flow rate of the coolant, precise cooling of a certain battery pack can be achieved. The first water distribution pipe 17 and the second water distribution pipe 19 are respectively connected to the inlet main pipe 16 and the outlet main pipe 18. The inlet main pipe 16 and the outlet main pipe 18 are both connected to the second temperature sensor 23. The inlet main pipe 16 and the outlet main pipe 18 are generally connected to external water-cooling equipment. The second temperature sensor 23 can sense changes in the cooling water, thereby adjusting and controlling the power operation of the external water-cooling equipment.

[0020] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A cooling device for a new energy battery compartment, comprising a battery compartment body (1), wherein the battery compartment body (1) comprises a bottom compartment structure (2), a pressure plate structure (6), and a top mica plate (7) arranged sequentially from bottom to top, wherein the bottom compartment structure (2) is provided with a battery slot (3) and a control slot (4), wherein the control slot (4) is provided with a BMS controller (8), characterized in that: The battery compartment (3) is provided with multiple sets of cell temperature control structures (5), which are composed of horizontally arranged cell groups (9) and water cooling plates (10). The water-cooled plate (10) is provided with a circulating water inlet pipe (14) and a circulating water outlet pipe (15). A flow control valve (21) and a first temperature sensor (22) are connected to both the circulating water inlet pipe (14) and the circulating water outlet pipe (15).

2. The cooling device for the new energy battery compartment according to claim 1, characterized in that: The cell temperature control structure (5) includes a first support beam plate (11) and a second support beam plate (12) set on both sides of the horizontal cell group (9).

3. The cooling device for the new energy battery compartment according to claim 1, characterized in that: Multiple circulating water inlet pipes (14) extend into the control tank (4) and are connected to a first water distribution pipe (17). Multiple circulating water outlet pipes (15) extend into the control tank (4) and are connected to a second water distribution pipe (19). Both the circulating water inlet pipes (14) and the circulating water outlet pipes (15) are connected to a one-way valve (20).

4. The cooling device for the new energy battery compartment according to claim 3, characterized in that: The first water distribution pipe (17) and the second water distribution pipe (19) are respectively connected to the main water inlet pipe (16) and the main water outlet pipe (18), and the main water inlet pipe (16) and the main water outlet pipe (18) are both connected to the second temperature sensor (23).

5. The cooling device for the new energy battery compartment according to claim 1, characterized in that: The water-cooled plate (10) is provided with an S-shaped water channel (13) that is connected to the circulating water inlet pipe (14) and the circulating water outlet pipe (15).

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