Dual-mode heat dissipation industrial energy storage cabinet and heat dissipation method

Abstract

The invention discloses a dual-mode heat dissipation industrial energy storage cabinet and a heat dissipation method thereof, and belongs to the technical field of industrial energy storage equipment. The cabinet comprises a cabinet body, side cabinets and a refrigerating unit, a battery cell frame and a plurality of battery cells distributed at equal intervals are arranged in the cabinet body, an air inlet fan and an exhaust fan are mounted at heat dissipation holes in the two sides respectively, and a temperature sensor is arranged. According to the heat dissipation method, the temperature in the cabinet is monitored in real time through the temperature sensor, when the temperature is lower than a set threshold value, an air cooling mode is started, cold air is sucked in through the air inlet fan, and hot air is exhausted through the exhaust fan after heat is taken away through the channel between the battery cells; and starting the liquid cooling mode when the temperature is higher than a set threshold value. The advantages of air cooling and liquid cooling are combined, heat dissipation modes are automatically switched, heat dissipation is flexible and efficient, the structural design is reasonable, installation and maintenance are convenient, and the safety and reliability of the energy storage cabinet are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the mechanical technical field, specifically relates to a double-mode heat dissipation industrial energy storage cabinet and heat dissipation method. BACKGROUND

[0002] With the increasing demand for energy storage equipment in the industrial field, the application of industrial energy storage cabinets is becoming more and more widespread. During the operation of the industrial energy storage cabinet, the internal battery cells will continuously generate heat. If the heat cannot be dissipated in time and effectively, it will lead to high temperature inside the cabinet, affecting the performance and life of the battery cells, and even may cause safety hazards. At present, the existing heat dissipation methods of industrial energy storage cabinets mainly include air cooling and liquid cooling. Although the air cooling method has simple structure and low cost, its heat dissipation efficiency is limited, and it is difficult to meet the heat dissipation demand in high-power operation or high-temperature environment. The liquid cooling method has high heat dissipation efficiency, but the system structure is complex, the cost is high, and there are potential risks such as cooling liquid leakage.

[0003] Therefore, how to provide a double-mode heat dissipation industrial energy storage cabinet and heat dissipation method to solve the problems existing in the prior art is of great significance to its application. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a double-mode heat dissipation industrial energy storage cabinet and heat dissipation method to solve the problems.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A double-mode heat dissipation industrial energy storage cabinet, comprising: a cabinet body, a side cabinet, and a refrigeration unit.

[0007] The side cabinet is installed on the front face of the cabinet body, and the refrigeration unit is installed on the top end of the side cabinet.

[0008] The inside of the cabinet body is fixedly connected with a battery cell holder, the bottom end of the battery cell holder is installed with a plurality of battery cells, and the battery cells are distributed at equal intervals.

[0009] Both sides of the cabinet body are provided with heat dissipation holes, and the inner sides of the two heat dissipation holes are respectively installed with an air inlet fan and an air outlet fan. A temperature sensor is installed inside the cabinet body.

[0010] Preferably, a polished rod is installed between the bottom ends of the cabinet body and the side cabinet, the top end of the polished rod is slidingly connected with a sliding block, the top end of the sliding block is fixedly connected with a support plate, a plurality of cold plates are installed on the top end of the support plate, and the cold plates are gap-fitted with the battery cells.

[0011] Preferably, the middle part of the bottom end of the support plate is provided with a movable block, a lead screw is rotationally connected between the bottom end of the cabinet body and the side cabinet, the lead screw is in engagement with the movable block, a motor is installed on the front face of the side cabinet, and the output shaft of the motor is in transmission connection with the lead screw.

[0012] Preferably, the refrigeration unit is internally provided with a compressor, a heat exchanger, a water pump, a fan, a condenser, an expansion valve, an inlet pipe and an outlet pipe.

[0013] Preferably, the inlet pipe and the outlet pipe are connected with the inlet end and the outlet end of the cold plate respectively.

[0014] Preferably, the outlet end of the compressor is connected with the condenser, the outlet end of the condenser is connected with the inlet end of the heat exchanger, and the outlet end of the heat exchanger is connected with the inlet end of the compressor through the expansion valve.

[0015] Preferably, the fan is installed on the back face of the condenser, the outlet end of the heat exchanger is connected with the inlet pipe, the outlet pipe is connected with the inlet end of the heat exchanger, and the water pump is installed on the inlet end of the inlet pipe.

[0016] Preferably, the heat dissipation method comprises the following steps:

[0017] S1: The temperature sensor monitors the temperature inside the cabinet body in real time.

[0018] S2: The heat dissipation mode is determined according to the monitored temperature.

[0019] S3: When the temperature inside the cabinet body is lower than the set threshold value, the air cooling mode is started.

[0020] S4: When the temperature inside the cabinet body is higher than the set threshold value, the liquid cooling mode is started.

[0021] The set threshold value can be adjusted according to actual needs and the working temperature range of the battery cell.

[0022] Preferably, the specific steps of the air cooling mode are as follows:

[0023] S3.1: The air inlet fan is started to suck the cold air outside through the heat dissipation holes on one side into the cabinet body.

[0024] The cold air flows in the channels formed equidistantly between the battery cells to take away the heat generated by the battery cells.

[0025] S3.2: The air outlet fan is started to exhaust the hot air after absorbing heat through the heat dissipation holes on the other side out of the cabinet body to complete the air cooling heat dissipation cycle.

[0026] Preferably, the specific steps of the liquid cooling mode are as follows:

[0027] S4.1: the motor starts to drive the screw rod to rotate, the screw rod is engaged with the movable block, the support plate is driven to slide on the light rod through the sliding block, and the cold plate is pushed to be in close contact with the battery cell;

[0028] S4.2: the water pump starts to pump the cooling liquid in the heat exchanger into the cold plate through the liquid inlet pipe, the cooling liquid absorbs the heat of the battery cell in the cold plate, and the cooling liquid after absorbing the heat flows back to the heat exchanger through the liquid outlet pipe;

[0029] S4.3: the compressor compresses the gaseous refrigerant into high-temperature and high-pressure gas, and sends it into the condenser, and the fan performs air cooling on the condenser, and the gaseous refrigerant is cooled and liquefied in the condenser;

[0030] S4.4: the liquid refrigerant enters the heat exchanger after being decompressed and cooled by the expansion valve, exchanges heat with the high-temperature cooling liquid flowing back from the cold plate, and the cooled cooling liquid enters the cold plate again to complete the liquid cooling and heat dissipation cycle.

[0031] Compared with the prior art, the beneficial effects of the present application are:

[0032] 1、The present application adopts a double-mode heat dissipation mode, the temperature sensor is used to monitor the temperature inside the cabinet in real time, and the air cooling and liquid cooling modes are automatically switched according to the temperature. When the temperature is low, the air cooling mode is adopted, which is simple in structure and low in energy consumption; when the temperature is high, the liquid cooling mode is switched to, which is high in heat dissipation efficiency, can effectively meet the heat dissipation demand under different working conditions, and improves the flexibility and adaptability of the energy storage cabinet heat dissipation.

[0033] 2、The battery cells on the battery cell frame in the cabinet body are distributed at equal intervals, which cooperates with the flow of cold air in the channel between the battery cells in the air cooling mode, so that the cold air can fully contact the battery cells and improve the air cooling heat dissipation effect; meanwhile, the liquid cooling mode can realize the close contact between the cold plate and the battery cells through the motor, screw rod and other structures, so as to enhance the heat transfer efficiency and further improve the heat dissipation performance.

[0034] 3、The reasonable connection and layout of the components in the refrigeration unit form a complete and efficient refrigeration cycle system, which ensures the effective cooling and circulation of the cooling liquid in the liquid cooling mode, and ensures the stability and reliability of the liquid cooling heat dissipation.

[0035] 4、The double-mode heat dissipation industrial energy storage cabinet of the present application has reasonable structure design, and is convenient to install, maintain and operate through modular design and automatic control, which reduces the use cost and maintenance difficulty, and has high market application value.

[0036] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, the contents of the description can be implemented, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following will be described in detail with the preferred embodiments of the present application and the accompanying drawings.

[0037] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of specific embodiments of the present application, when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative effort. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, the elements or parts are not necessarily drawn according to the actual proportions.

[0039] Figure 1 It is a structural schematic diagram of the present application;

[0040] Figure 2 It is a Y-axis sectional view of the present application;

[0041] Figure 3 It is an X-axis sectional view of the present application;

[0042] Figure 4 It is a method flowchart of the present application.

[0043] In the drawings: 1, cabinet body; 2, refrigeration unit; 3, side cabinet; 4, motor; 5, heat dissipation hole; 6, battery cell; 7, battery cell holder; 8, cold plate; 9, lead screw; 10, support plate; 11, movable block; 12, liquid inlet pipe; 13, liquid outlet pipe; 14, expansion valve; 15, condenser; 16, fan; 17, heat exchanger; 18, water pump; 19, compressor; 20, air inlet fan; 21, air outlet fan; 22, sliding block; 23, light rod. DETAILED DESCRIPTION

[0044] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments of the present application. In the following description, specific details such as specific configurations and components are provided only to help the overall understanding of the embodiments of the present application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, in order to be clear and concise, the description of known functions and structures is omitted in the embodiments.

[0045] In addition, reference numerals and / or letters can be repeated in different instances in this application. Such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and / or arrangements discussed.

[0046] The term "and / or", merely describes an associated relationship, which means that there can be three relationships, for example, A and / or B, which means that there are three cases, A alone, B alone, and A and B together. The term "and" in this article describes another relationship between the associated objects, which means that there can be two relationships, for example, A and B, which means that there are two cases, A alone and A and B together. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects.

[0047] It should also be noted that in this article, relationship terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion.

[0048] Please refer to Figures 1-4 The present application provides a dual-mode heat dissipation industrial energy storage cabinet and a heat dissipation method.

[0049] The cabinet body 1, the side cabinet 3 and the refrigeration unit 2 are included. The side cabinet 3 is installed on the front of the cabinet body 1, and the refrigeration unit 2 is installed at the top end of the side cabinet 3.

[0050] The inside of the cabinet body 1 is fixedly connected with the electric core frame 7, and the bottom end of the electric core frame 7 is installed with a plurality of electric cores 6. The electric cores 6 are distributed at equal intervals to facilitate air circulation and heat dissipation between the electric cores in the air cooling mode. The two sides of the cabinet body 1 are provided with heat dissipation holes 5, and the inner sides of the two heat dissipation holes 5 are respectively installed with an air inlet fan 20 and an air outlet fan 21. The inside of the cabinet body 1 is installed with a temperature sensor for real-time monitoring of the internal temperature of the cabinet, providing a basis for switching the heat dissipation mode.

[0051] A light rod 23 is installed between the bottom end of the cabinet body 1 and the side cabinet 3, the top end of the light rod 23 is slidingly connected with a sliding block 22, the top end of the sliding block 22 is fixedly connected with a support plate 10, a plurality of cold plates 8 are installed at the top end of the support plate 10, and the cold plates 8 are in clearance fit with the battery cells 6. The middle part of the bottom end of the support plate 10 is installed with a movable block 11, a lead screw 9 is rotatably connected between the bottom end of the cabinet body 1 and the side cabinet 3, the lead screw 9 is in meshing connection with the movable block 11, a motor 4 is installed on the front face of the side cabinet 3, and the output shaft of the motor 4 is in transmission connection with the lead screw 9. The motor 4 drives the lead screw 9 to rotate, drives the movable block 11, the support plate 10 and the cold plates 8 to move up and down, realizes the contact and separation of the cold plates 8 and the battery cells 6, and controls the opening and closing of the liquid cooling mode.

[0052] The inside of the refrigeration unit 2 is installed with a compressor 19, a heat exchanger 17, a water pump 18, a fan 16, a condenser 15, an expansion valve 14, an inlet pipe 12 and an outlet pipe 13. The inlet pipe 12 and the outlet pipe 13 are connected with the inlet end and the outlet end of the cold plate 8 respectively. The outlet end of the compressor 19 is connected with the condenser 15, the outlet end of the condenser 15 is connected with the inlet end of the heat exchanger 17, and the outlet end of the heat exchanger 17 is connected with the inlet end of the compressor 19 through the expansion valve 14. The fan 16 is installed on the back face of the condenser 15, the outlet end of the heat exchanger 17 is connected with the inlet pipe 12, the outlet pipe 13 is connected with the inlet end of the heat exchanger 17, and the water pump 18 is installed on the inlet end of the inlet pipe 12. In the liquid cooling mode, the refrigeration cycle is realized through the compressor 19, the condenser 15, the expansion valve 14, the heat exchanger 17 and other components, the water pump 18 delivers the low-temperature cooling liquid to the cold plate 8 through the inlet pipe 12, after absorbing the heat of the battery cells 6, the high-temperature cooling liquid flows back to the heat exchanger 17 through the outlet pipe 13 for cooling, and high-efficiency heat dissipation is realized.

[0053] The heat dissipation method comprises the following steps:

[0054] S1: The temperature sensor monitors the temperature inside the cabinet body 1 in real time;

[0055] S2: The heat dissipation mode is determined according to the monitored temperature;

[0056] S3: When the temperature inside the cabinet body 1 is lower than the set threshold value, the air cooling mode is started;

[0057] S4: When the temperature inside the cabinet body 1 is higher than the set threshold value, the liquid cooling mode is started; the set threshold value can be adjusted according to actual requirements and the working temperature range of the battery cells 6.

[0058] Further, the specific steps of the air cooling mode are as follows:

[0059] S3.1: The air inlet fan 20 is started to suck the external cold air into the inside of the cabinet body 1 through the heat dissipation holes 5 on one side; the cold air flows in the channels formed at equal intervals between the battery cells 6 and carries away the heat generated by the battery cells 6;

[0060] S3.2: The exhaust fan 21 is started, and the hot air after absorbing heat is discharged from the cabinet body 1 through the heat dissipation holes 5 on the other side, completing the air cooling heat dissipation cycle.

[0061] Further, the specific steps of the liquid cooling mode are as follows:

[0062] S4.1: The motor 4 is started, driving the screw rod 9 to rotate, and the screw rod 9 is engaged with the movable block 11, so that the support plate 10 slides on the light rod 23 through the sliding block 22, and the cold plate 8 is pushed to tightly contact the battery cell 6;

[0063] S4.2: The water pump 18 is started, pumping the cooling liquid in the heat exchanger 17 into the cold plate 8 through the liquid inlet pipe 12, and the cooling liquid absorbs the heat of the battery cell 6 in the cold plate 8, and the cooling liquid after absorbing heat flows back to the heat exchanger 17 through the liquid outlet pipe 13;

[0064] S4.3: The compressor 19 compresses the gaseous refrigerant into high-temperature and high-pressure gas, which is sent to the condenser 15, and the fan 16 performs air cooling heat dissipation on the condenser 15, and the gaseous refrigerant is liquefied in the condenser 15;

[0065] S4.4: The liquid refrigerant enters the heat exchanger 17 after being decompressed and cooled by the expansion valve 14, and exchanges heat with the high-temperature cooling liquid flowing back from the cold plate 8, and the cooled cooling liquid enters the cold plate 8 again to complete the liquid cooling heat dissipation cycle.

[0066] Specific use:

[0067] Air cooling mode operation:

[0068] When the temperature sensor monitors that the internal temperature of the cabinet body 1 is lower than the set threshold, the control system starts the air cooling mode. The air inlet fan 20 starts to operate, and the external cold air is sucked into the cabinet body 1 through the heat dissipation holes 5 on one side. Since the battery cells 6 are distributed at equal intervals, the cold air can flow smoothly in the channel formed between the battery cells 6 and fully exchange heat with the battery cells 6 to carry away the heat generated during the operation of the battery cells 6. Then, the exhaust fan 21 is started, and the hot air after absorbing heat is discharged from the cabinet body 1 through the heat dissipation holes 5 on the other side, so as to realize air cooling heat dissipation and maintain the internal temperature of the cabinet at a low level.

[0069] Liquid cooling mode operation:

[0070] When the temperature sensor monitors that the temperature inside the cabinet body 1 is higher than the set threshold, the control system starts the liquid cooling mode. First, the motor 4 starts, and its output shaft drives the screw rod 9 to rotate, the screw rod 9 is engaged with the movable block 11, so that the support plate 10 is slid upward on the light rod 23 through the sliding block 22, and the cold plate 8 installed at the top end of the support plate 10 is pushed to be in close contact with the battery cell 6, providing good contact conditions for heat transfer. Then, the water pump 18 starts, and the cooling liquid in the heat exchanger 17 is pumped into the cold plate 8 through the liquid inlet pipe 12, and the cooling liquid absorbs a large amount of heat emitted by the battery cell 6 in the cold plate 8, and the cooling liquid after absorbing heat is raised in temperature, and flows back to the heat exchanger 17 through the liquid outlet pipe 13. At the same time, the compressor 19 compresses the gaseous refrigerant into high-temperature and high-pressure gas, and sends it into the condenser 15, and the fan 16 performs air cooling on the condenser 15 to dissipate heat, so that the gaseous refrigerant is cooled and liquefied in the condenser 15. The liquid refrigerant enters the heat exchanger 17 after being reduced in pressure and temperature by the expansion valve 14, exchanges heat with the high-temperature cooling liquid flowing back from the cold plate 8, cools the cooling liquid, and then the cooled cooling liquid is pumped into the cold plate 8 again by the water pump 18 to circulate, thereby realizing efficient liquid cooling heat dissipation, rapidly reducing the temperature inside the cabinet, and ensuring stable operation of the battery cell at an appropriate temperature.

[0071] The above only describes the preferred embodiments of the present application, and does not limit the protection scope of the present application. For those skilled in the art, the present application can have various changes and variations. Any changes, modifications, replacements, integrations and parameter changes to these embodiments within the spirit and principles of the present application, which can realize the same functions without departing from the principles and spirit of the present application, fall within the protection scope of the present application.

Claims

1. A dual-mode heat dissipation industrial energy storage cabinet, characterized in that: include: Cabinet body (1), side cabinet (3), refrigeration unit (2); The side cabinet (3) is installed on the front of the cabinet body (1), and the refrigeration unit (2) is installed on the top of the side cabinet (3); A battery rack (7) is fixedly connected to the interior of the cabinet body (1), and a plurality of battery cells (6) are installed at the bottom end of the battery rack (7), and the battery cells (6) are distributed at equal intervals; Both sides of the cabinet body (1) are provided with heat dissipation holes (5), an intake fan (20) and an exhaust fan (21) are respectively installed inside the two heat dissipation holes (5), and a temperature sensor is installed inside the cabinet body (1).

2. A dual-mode heat dissipation industrial energy storage cabinet according to claim 1, characterized in that: A polished rod (23) is installed between the bottom ends of the cabinet body (1) and the side cabinet (3); the top end of the polished rod (23) is slidably connected to a slider (22); the top end of the slider (22) is fixedly connected to a support plate (10); a plurality of cold plates (8) are installed on the top end of the support plate (10); and the cold plates (8) are clearance-matched with the battery cells (6).

3. A dual-mode heat dissipation industrial energy storage cabinet according to claim 2, characterized in that: A movable block (11) is installed in the middle of the bottom end of the support plate (10), a screw rod (9) is rotatably connected between the cabinet body (1) and the bottom end of the side cabinet (3), the screw rod (9) is meshedly connected with the movable block (11), and a motor (4) is installed on the front of the side cabinet (3), and the output shaft of the motor (4) is transmission-connected with the screw rod (9).

4. A dual-mode heat dissipation industrial energy storage cabinet according to claim 3, characterized in that: The refrigeration unit (2) is internally installed with a compressor (19), a heat exchanger (17), a water pump (18), a fan (16), a condenser (15), an expansion valve (14), a liquid inlet pipe (12) and a liquid outlet pipe (13).

5. The dual-mode heat dissipation industrial energy storage cabinet according to claim 4, characterized in that: The liquid inlet pipe (12) and the liquid outlet pipe (13) are respectively connected to the liquid inlet end and the liquid outlet end of the cold plate (8).

6. The dual-mode heat dissipation industrial energy storage cabinet according to claim 4, characterized in that: The air outlet of the compressor (19) is connected to the condenser (15), the air outlet of the condenser (15) is connected to the air inlet of the heat exchanger (17), and the air outlet of the heat exchanger (17) is connected to the air inlet of the compressor (19) via an expansion valve (14).

7. The dual-mode heat dissipation industrial energy storage cabinet according to claim 4, characterized in that: The fan (16) is installed on the back of the condenser (15), the liquid outlet end of the heat exchanger (17) is connected to the liquid inlet pipe (12), the liquid outlet pipe (13) is connected to the liquid inlet end of the heat exchanger (17), and the water pump (18) is installed at the liquid inlet end of the liquid inlet pipe (12).

8. A heat dissipation method for a dual-mode heat dissipation industrial energy storage cabinet according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: The temperature sensor monitors the internal temperature of the cabinet body (1) in real time; S2: Determine the heat dissipation mode based on the monitored temperature; S3: When the internal temperature of the cabinet body (1) is lower than the set threshold, the air cooling mode is activated; S4: When the internal temperature of the cabinet body (1) is higher than the set threshold, the liquid cooling mode is started; The set threshold value can be adjusted according to actual needs and the operating temperature range of the battery cell (6).

9. The heat dissipation method of the dual-mode heat dissipation industrial energy storage cabinet according to claim 8, characterized in that: The specific steps of the air cooling mode are as follows: S3.1: The inlet fan (20) starts, drawing cold air from the outside into the cabinet body (1) through the heat dissipation holes (5) on one side; The cold air flows in the channels formed at equal intervals between the battery cells (6), taking away the heat generated by the battery cells (6); S3.2: The exhaust fan (21) starts, and the hot air after absorbing the heat is discharged from the cabinet body (1) through the heat dissipation holes (5) on the other side, completing the air cooling and heat dissipation cycle.

10. The heat dissipation method of the dual-mode heat dissipation industrial energy storage cabinet according to claim 8, characterized in that: The specific steps of the liquid cooling mode are as follows: S4.1: The motor (4) is started, driving the screw (9) to rotate, and the screw (9) is engaged with the movable block (11), so that the support plate (10) slides on the polished rod (23) through the slider (22), pushing the cold plate (8) to be in close contact with the battery cell (6); S4.2: The water pump (18) is started to pump the coolant in the heat exchanger (17) into the cold plate (8) through the liquid inlet pipe (12). The coolant absorbs the heat of the battery cells (6) in the cold plate (8). After absorbing the heat, the coolant flows back to the heat exchanger (17) through the liquid outlet pipe (13); S4.3: The compressor (19) compresses the gaseous refrigerant into a high-temperature, high-pressure gas and sends it to the condenser (15). The fan (16) cools the condenser (15) and dissipates heat. The gaseous refrigerant is cooled and liquefied in the condenser (15). S4.4: The liquid refrigerant is reduced in pressure and temperature through the expansion valve (14) and then enters the heat exchanger (17), where it exchanges heat with the high-temperature coolant flowing back from the cold plate (8). The cooled coolant then enters the cold plate (8) for circulation again, completing the liquid cooling and heat dissipation cycle.

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