Water cooling assembly and energy storage lithium battery pack thereof

Abstract

The utility model relates to the technical field of heat dissipation of energy storage lithium battery packs, and discloses a water cooling assembly and an energy storage lithium battery pack thereof, the water cooling assembly comprises an outer shell, and a liquid storage tank for storing cooling liquid is fixedly arranged on one side of the outer shell; the cooling structure comprises a control panel, a circulating cooling pipe, a water pump, a cooling water cavity and a temperature sensor, the control panel is fixedly installed on one side of the outer portion of the outer shell, the cooling water cavity is formed in the outer shell, the circulating cooling pipe is fixedly arranged in the outer shell, and the water pump is fixedly arranged between the circulating cooling pipe and the liquid storage tank; the temperature sensor is fixedly arranged on the inner bottom surface of the outer shell; the cooling structure is arranged, and the circulating cooling pipe is used for indirectly cooling the energy storage lithium battery pack body, so that short circuit and corrosion risks possibly caused by direct contact of cooling liquid with batteries are avoided, and meanwhile, relatively high heat exchange efficiency can be realized in a manner of surrounding the energy storage lithium battery pack body.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of energy storage lithium battery pack heat dissipation, specifically relates to a water cooling assembly and energy storage lithium battery pack thereof. BACKGROUND

[0002] Energy storage battery pack is a kind of equipment combination that can convert electrical energy into chemical energy (or physical energy, kinetic energy) and store up, and release the energy stored as electrical energy when needed, and these systems usually need to operate under complex and changeable environmental conditions, so that overheating reaction is easily generated, at this time, water cooling assembly can effectively absorb and dissipate the heat generated by battery pack, ensure the stable operation of energy storage system.

[0003] The prior art discloses a novel energy storage battery pack water cooling heat dissipation structure (CN217822968U), which comprises a cooling liquid storage tank, a battery box body connected to the cooling liquid storage tank, a lithium battery pack installed in the battery box body, positive and negative electrode connectors connected to the battery box body and a cooling liquid inlet and a cooling liquid outlet arranged on the battery box body, a hard plastic sealing fixed base is arranged in the battery box body, the lithium battery pack is installed in the hard plastic sealing fixed base, a hard plastic sealing cover is arranged at the top of the hard plastic sealing fixed base, the cooling liquid inlet and the cooling liquid outlet are communicated with the inside of the hard plastic sealing fixed base, and the cooling liquid inlet and the cooling liquid outlet are connected to the cooling liquid storage tank through liquid cooling pipes respectively.

[0004] Through retrieval, it is found that the prior art adopts the mode of directly contacting cooling liquid when in use, which can theoretically achieve higher heat dissipation efficiency, but the insulation, corrosion and sealing of cooling liquid are extremely high, the technical implementation difficulty and cost are also relatively high, and moreover, there is no corresponding cooling measure on the heat of cooling liquid itself, so it is necessary to continuously replace the cooling liquid to ensure that the temperature of cooling liquid is appropriate, and however, this mode is relatively frequent in operation, and is more likely to increase the labor burden of workers.

[0005] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0006] To solve the above technical problems, the basic idea of the technical scheme of the utility model is:

[0007] A water cooling assembly, comprising

[0008] An outer shell, a liquid storage tank for storing cooling liquid is fixedly arranged on one side of the outer shell;

[0009] The cooling structure comprises a control panel, a circulating cooling pipe, a water pump, a cooling water cavity and a temperature sensor, the control panel is fixedly installed on the outer side of the outer shell, the cooling water cavity is arranged in the outer shell, the circulating cooling pipe is fixedly arranged in the outer shell, the water pump is fixedly arranged between the circulating cooling pipe and the liquid storage tank, and the temperature sensor is fixedly arranged on the inner bottom surface of the outer shell.

[0010] As a preferred embodiment of the utility model, a cover plate is hingedly connected to the top surface of the outer shell through a hinge, and a plurality of heat dissipation holes are formed in the cover plate for heat dissipation.

[0011] As a preferred embodiment of the utility model, the cooling water cavity is a C-shaped square cavity, water inlets and outlets are formed between the outer shell and the cooling water cavity, and a plug cover for sealing is arranged in each of the water inlets and outlets.

[0012] As a preferred embodiment of the utility model, the circulating cooling pipe is arranged at the center of the cooling water cavity and the outer shell, the circulating cooling pipe has a vertical pipe structure, the circulating cooling pipe is arranged around the inner side of the cooling water cavity, at least four square openings for placing lithium batteries are formed around the circulating cooling pipe, and at least four temperature sensors are arranged.

[0013] As a preferred embodiment of the utility model, liquid inlets and outlets are fixedly arranged on one side of the circulating cooling pipe close to the liquid storage tank, a water pump is arranged on each of the liquid inlets and outlets, the liquid inlets and outlets are communicated with the same liquid storage tank through the corresponding water pumps, and a tank door for sealing is hingedly connected to the upper portion of the liquid storage tank.

[0014] As a preferred embodiment of the utility model, the water pump and the temperature sensor are electrically connected with the same control panel.

[0015] The utility model discloses a kind of energy storage lithium battery groups, including energy storage lithium battery group body, the energy storage lithium battery group body includes all above water cooling components, the energy storage lithium battery group body is arranged on temperature sensor, and the circulating cooling pipe is wrapped around energy storage lithium battery group body.

[0016] Compared with prior art, the utility model has the following beneficial effects:

[0017] 1. By setting cooling structure, the energy storage lithium battery group body is indirectly cooled using circulating cooling pipe, not only avoid the short circuit and corrosion risk possibly caused by that cooling liquid directly contacts battery, simultaneously, by setting the mode of being wrapped around energy storage lithium battery group body, higher heat exchange efficiency can be realized.

[0018] 2. By using the cooling water cavity to cool the circulating cooling pipe, and the circulating cooling pipe corresponding to the shape inside the cooling water cavity, the cooling circulation of the cooling liquid is assisted, and the frequent replacement of the cooling liquid by workers is solved, and the labor burden of the workers is reduced.

[0019] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] In the drawings:

[0021] Figure 1 It is the overall schematic view of the present application;

[0022] Figure 2 It is the front view schematic view of the present application;

[0023] Figure 3 It is the circulating cooling pipe schematic view of the present application;

[0024] Figure 4 It is the longitudinal section schematic view of the present application;

[0025] Figure 5 It is the transverse section schematic view of the present application.

[0026] In the drawings: 10, outer shell; 11, cover plate; 12, heat dissipation hole; 13, plug; 14, control panel; 15, liquid storage tank; 16, tank door; 17, circulating cooling pipe; 18, liquid inlet pipe; 19, water pump; 20, liquid outlet pipe; 21, cooling water cavity; 22, water inlet; 23, water outlet; 24, temperature sensor. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and the following embodiments are used to illustrate the present application.

[0028] A water cooling assembly, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, including the outer shell 10, one side of the outer shell 10 is fixedly provided with a storage tank 15 for storing cooling liquid; cooling structure, the cooling structure includes a control panel 14, a circulating cooling pipe 17, a water pump 19, a cooling water cavity 21 and a temperature sensor 24, the control panel 14 is fixedly installed on the outside of the outer shell 10, the cooling water cavity 21 is arranged in the outer shell 10, the circulating cooling pipe 17 is fixedly arranged in the outer shell 10, the water pump 19 is fixedly arranged between the circulating cooling pipe 17 and the storage tank 15, and the temperature sensor 24 is fixedly arranged on the inner bottom surface of the outer shell 10.

[0029] Specifically, the device is cooled by setting the cooling structure, and the circulating cooling pipe 17 is used to indirectly cool the energy storage lithium battery pack body. Not only can the short circuit and corrosion risk caused by direct contact of the cooling liquid with the battery be avoided, but also a high heat exchange efficiency can be achieved by arranging the energy storage lithium battery pack body in a surrounding manner. The circulating cooling pipe 17 is cooled by the cooling water cavity 21, and the shape of the circulating cooling pipe 17 corresponds to the shape of the cooling water cavity 21. The cooling liquid is cooled and circulated, and the frequent replacement of the cooling liquid by workers is solved, thereby reducing the labor burden of the workers.

[0030] As shown in Figure 1 , the top surface of the outer shell 10 is hingedly connected to a cover plate 11, and a plurality of heat dissipation holes 12 are formed in the cover plate 11 for heat dissipation. Figure 1 and Figure 4 , the cooling water cavity 21 is a C-shaped square cavity, and the outer shell 10 and the cooling water cavity 21 are provided with a water inlet 22 and a water outlet 23, and a plug 13 is arranged in the water inlet 22 and the water outlet 23 for sealing.

[0031] Specifically, the energy storage lithium battery pack body is placed in the outer shell 10, the heat dissipation holes 12 are opposite to the top of the energy storage lithium battery pack body, and the top surface of the energy storage lithium battery pack body is cooled. At the same time, cooling water is added to the cooling water cavity 21 through the water inlet 22, the cooling water in the cooling water cavity 21 is used to cool the cooling liquid in the circulating cooling pipe 17, and the overheated cooling water is discharged through the water outlet 23.

[0032] As shown in Figure 3 and Figure 5 , the cooling water cavity 21 and the center of the outer shell 10 are provided with a circulating cooling pipe 17, the circulating cooling pipe 17 is a vertical pipe structure, the circulating cooling pipe 17 is arranged on the inner side of the cooling water cavity 21, and the circulating cooling pipe 17 is arranged in the form of a square hole for placing lithium batteries. There are not less than four groups of temperature sensors 24, four groups of temperature sensors 24 are arranged in the corresponding square holes, the overall shape of the circulating cooling pipe 17 corresponds to the shape of the cooling water cavity 21; as shown in Figure 2 , Figure 3 and Figure 4As shown in the drawings, the side of the circulating cooling pipe 17 close to the liquid tank 15 is fixedly provided with an inlet pipe 18 and an outlet pipe 20, and a water pump 19 is arranged on each of the inlet pipe 18 and the outlet pipe 20, and the inlet pipe 18 and the outlet pipe 20 are communicated with the same liquid tank 15 through the respective water pump 19, and a tank door 16 for sealing is hingedly connected to the top of the liquid tank 15. Figure 1 、 Figure 3 and Figure 5 As shown in the drawings, the water pump 19 and the temperature sensor 24 are electrically connected with the same control panel 14.

[0033] Specifically, in use, the energy storage lithium battery pack body is first installed in the square opening, at this time the circulating cooling pipe 17 surrounds and abuts against the energy storage lithium battery pack body, and the temperature sensor 24 is in close contact with the bottom surface of the energy storage lithium battery pack body, in use, when the energy storage lithium battery pack body generates heat during the working process, the temperature sensor 24 detects the change and sends a signal to the control panel 14, at this time, the control panel 14 receives the signal and starts the water pump 19, so that the cooling liquid in the liquid tank 15 flows into the circulating cooling pipe 17 from the inlet pipe 18 to start circulating, the cooling water in the cooling water cavity 21 absorbs part of the heat carried by the cooling liquid in the circulating cooling pipe 17, so as to realize the cooling of the cooling liquid, and finally the cooling liquid flows back to the liquid tank 15 through the corresponding water pump 19 of the outlet pipe 20.

[0034] An energy storage lithium battery pack, comprising an energy storage lithium battery pack body, the energy storage lithium battery pack body is arranged on a temperature sensor 24, a circulating cooling pipe 17 surrounds and abuts against the energy storage lithium battery pack body, and the energy storage lithium battery pack body is provided with all the water cooling components, so that the device has the characteristics of preventing corrosion of the circuit and reducing the labor burden of workers.

[0035] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A water-cooled assembly, characterized by, Comprising An outer shell (10), one side of which is fixedly provided with a liquid storage tank (15) for storing cooling liquid; A cooling structure, which comprises a control panel (14), a circulating cooling pipe (17), a water pump (19), a cooling water cavity (21) and a temperature sensor (24), the control panel (14) is fixedly installed on the outer side of the outer shell (10), the cooling water cavity (21) is arranged in the outer shell (10), the circulating cooling pipe (17) is fixedly arranged in the outer shell (10), the water pump (19) is fixedly arranged between the circulating cooling pipe (17) and the liquid storage tank (15), and the temperature sensor (24) is fixedly arranged on the inner bottom surface of the outer shell (10).

2. A water cooled assembly according to claim 1, wherein, A cover plate (11) is hingedly connected to the top surface of the outer shell (10), and a plurality of heat dissipation holes (12) are formed in the cover plate (11).

3. The water-cooled assembly of claim 1, wherein, The cooling water cavity (21) is a C-shaped square cavity, and a water inlet (22) and a water outlet (23) are formed between the outer shell (10) and the cooling water cavity (21), and a plug cover (13) for sealing is clamped in each of the water inlet (22) and the water outlet (23).

4. The water-cooled assembly of claim 1, wherein, The circulating cooling pipe (17) is arranged at the center position of the cooling water cavity (21) and the outer shell (10), and is a vertical pipe structure, the circulating cooling pipe (17) is arranged around the inner side of the cooling water cavity (21), and not less than four square openings for placing lithium batteries are formed around the circulating cooling pipe (17), not less than four temperature sensors (24) are arranged, four temperature sensors (24) are arranged in the corresponding square openings respectively, and the overall shape of the circulating cooling pipe (17) corresponds to the shape of the cooling water cavity (21).

5. The water-cooled assembly of claim 1, wherein, The side of the circulating cooling pipe (17) close to the liquid storage tank (15) is fixedly provided with an inlet pipe (18) and an outlet pipe (20), a water pump (19) is arranged on each of the inlet pipe (18) and the outlet pipe (20), the inlet pipe (18) and the outlet pipe (20) are communicated with the same liquid storage tank (15) through the corresponding water pump (19), and a tank door (16) for sealing is hingedly connected to the top of the liquid storage tank (15).

6. The water-cooled assembly of claim 1, wherein, The water pump (19) and the temperature sensor (24) are electrically connected with the same control panel (14).

7. An energy storage lithium battery pack characterized by, The energy storage lithium battery pack body is provided with the water cooling assembly of any one of claims 1-6, the temperature sensor (24) is arranged on the energy storage lithium battery pack body, and the circulating cooling pipe (17) surrounds the energy storage lithium battery pack body.

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