Liquid cooling energy storage thermal management system

Abstract

The utility model discloses a liquid cooling energy storage heat management system, which is used for heat energy dispatching of an energy storage battery and an energy storage converter and comprises a heat exchange module, a heating module, a cooling module, a temperature detection device, a driving device, a first electric three-way valve and a second electric three-way valve. The driving device is electrically connected with the heat exchange module, the heating module, the cooling module, the temperature detection device, the first electric three-way valve and the second electric three-way valve; three valve ports of the first electric three-way valve are respectively connected with an outlet of the energy storage battery, an inlet of the heat exchange module and a first valve port of the second electric three-way valve, and a second valve port and a third valve port of the second electric three-way valve are respectively connected with an outlet of the energy storage converter and an outlet of the air cooling module; by controlling the on-off states of the two electric three-way valves and the modules, the medium flowing state between the different modules is achieved. Compared with a traditional separated heat energy management method, the management system can achieve effective heat scheduling, and the overall energy consumption of the heat adjusting system is reduced.

Description

Technical Field

[0001] This utility model relates to a liquid-cooled energy storage thermal management system, belonging to the field of energy storage battery technology. Background Technology

[0002] Energy storage battery systems typically consist of energy storage batteries and energy storage converters. Both generate significant heat during operation. Without cooling, this heat can accumulate, potentially leading to performance degradation or even explosions in extreme cases. Effective thermal management requires corresponding thermal management systems for each component's operating temperature. Due to the different operating temperatures of the two components, separate cooling systems are often necessary. However, in practice, uneven energy consumption between the two components, requiring heating or cooling of only one part during operation, often results in substantial energy waste and excessive energy consumption. Utility Model Content

[0003] To address the problems mentioned above in the background art, this utility model provides a liquid-cooled energy storage thermal management system.

[0004] The technical solution to achieve the purpose of this utility model is: a liquid-cooled energy storage thermal management system for thermal energy scheduling of energy storage batteries and energy storage converters, including a heat exchange module, a heating module, a cooling module, a temperature detection device, a drive device, a first electric three-way valve, and a second electric three-way valve; the drive device is electrically connected to the heat exchange module, the heating module, the cooling module, the temperature detection device, the first electric three-way valve, and the second electric three-way valve;

[0005] The three valve ports of the first electric three-way valve are respectively connected to the outlet of the energy storage battery, the inlet of the heat exchange module and the first valve port of the second electric three-way valve. The second valve port and the third valve port of the second electric three-way valve are respectively connected to the outlet of the energy storage converter and the outlet of the air-cooled module.

[0006] The heat exchange module and the heating module are connected in series. The inlet of the heat exchange module is connected to the outlet of the energy storage battery, and the outlet of the heating module is connected to the inlet of the energy storage battery, forming a first path.

[0007] A second path is formed between the cooling module and the energy storage converter;

[0008] A third passage is formed between the energy storage battery, the first electric three-way valve, the second electric three-way valve, the energy storage converter, and the heating module;

[0009] The cooling module has a flow channel switching device, and a fourth passage is formed between the energy storage battery, the first electric three-way valve, the second electric three-way valve, the cooling module and the heating module.

[0010] This invention employs a three-way valve to create four pathways between the energy storage battery and the energy storage converter, establishing a heat exchange channel between them. When faced with different heat management needs, the flow direction of the medium can be adjusted as needed to achieve heat exchange. Compared to traditional separate thermal management methods, this thermal management system can effectively manage heat based on the heat difference between the energy storage battery and the energy storage converter to achieve heat balance and reduce the overall energy consumption of the thermal regulation system.

[0011] Further or optionally, based on the temperature parameters obtained by the temperature detection device, the drive device has a high-temperature mode, a normal-temperature mode, a low-temperature mode, and a cold mode; wherein

[0012] When the drive device is in high temperature mode, the first passage and the second passage are connected, the heating module is off, and the heat exchange module is working.

[0013] When the drive device is in normal temperature mode, the second and fourth passages are connected, and the heating module is turned off.

[0014] When the drive device is in low temperature mode, the first passage and the second passage are connected, the heating module is working, and the heat exchange module is off.

[0015] When the drive unit is in cold mode, the third passage is connected and the heating module is turned off.

[0016] This invention uses ambient temperature as an adjustment parameter. During the design process, a determination method is established by analyzing the correlation between ambient temperature, the energy storage battery, and the energy storage converter. Specifically, the drive device can be a commercially available industrial computer, which can be programmed accordingly. Setting the operating mode based on ambient temperature is common knowledge in the industry and will not be elaborated upon here.

[0017] Further or optionally, to prevent backflow of liquid during flow and damage to the equipment, this utility model also includes a check system, specifically including a first check valve, a second check valve, and a third check valve. The first check valve is disposed between the outlet of the cooling module and the inlet of the energy storage converter. The second check valve is disposed between the inlet of the energy storage converter and the heating module. The second check valve is connected in parallel with the outlet of the cooling module and then connected to the third check valve. The third check valve is connected in parallel with the heat exchange module and connected to the heating module.

[0018] Further or optionally, in order to improve the efficiency of medium flow, a first water pump and a second water pump are also included, wherein the first water pump is disposed in the first passage and the second water pump is disposed in the second passage, and both are electrically connected to the drive device.

[0019] Further or optional, in order to improve heat exchange efficiency, the heat exchange module is a plate heat exchanger, and a fan is provided at the contact position with the outside to accelerate the heat exchange speed.

[0020] Further or alternatively, in order to achieve clean heating, the heating module is an electric heater, which adopts a design of multiple heating components connected in parallel.

[0021] Further or optional, in order to achieve precise heat exchange and reduce the fluctuation of the heat exchange process, the cooling module adopts a design of multiple cooling components connected in parallel or in series.

[0022] By adopting the above technical solution, this utility model has the following beneficial effects:

[0023] (1) This utility model uses a three-way valve to form four passages between the energy storage battery and the energy storage converter, establishing a heat exchange channel between the two. When faced with different heat dispatching needs, the flow direction of the medium can be adjusted as needed to achieve heat exchange. Compared with the traditional separate thermal energy management method, this thermal energy management system can effectively dispatch heat according to the heat difference between the energy storage battery and the energy storage converter to achieve heat balance and reduce the overall energy consumption of the thermal regulation system.

[0024] (2) This utility model uses ambient temperature as an adjustment parameter. In the design process, a judgment method is established by analyzing the correlation between ambient temperature, energy storage battery and energy storage converter. Specifically, its drive device can be a commonly used industrial control computer, which can be programmed. Setting the working mode according to ambient temperature is common knowledge in the industry and will not be elaborated here.

[0025] (3) The present invention is equipped with a check system, which can effectively prevent liquid from flowing back and causing damage to the equipment.

[0026] (4) This utility model is equipped with a water pump system for improving the flow efficiency of the medium, which can improve the heat exchange speed.

[0027] (5) This utility model adopts a plate heater that can improve heat exchange efficiency and a fan is provided at the contact position between the heater and the outside, which can further improve heat exchange efficiency.

[0028] (6) This utility model adopts parallel electric heating, which can accurately control the heating efficiency and achieve clean heating.

[0029] (7) The cooling module of this utility model adopts a parallel or series design, which can achieve precise heat exchange and reduce the fluctuation of the heat exchange process. Attached Figure Description

[0030] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0031] Figure 1 This is a schematic diagram of the structure of this utility model.

[0032] The labels in the attached diagram are:

[0033] 1. Energy storage battery; 2. Energy storage converter; 3. Heat exchange module; 4. Heating module; 5. Cooling module; 6. First electric three-way valve; 7. Second electric three-way valve; 8. First check valve; 9. Second check valve; 10. Third check valve; 11. First water pump; 12. Second water pump. Detailed Implementation

[0034] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The utility model will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of this utility model and should not be used to limit the scope of protection of this utility model.

[0040] (Example 1)

[0041] See Figure 1 This embodiment provides a liquid-cooled energy storage thermal management system for thermal energy scheduling between an energy storage battery 1 and an energy storage converter 2. The system includes a heat exchange module 3, a heating module 4, a cooling module 5, a temperature detection device, a drive device, a first electric three-way valve 6, and a second electric three-way valve 7. The drive device is electrically connected to the heat exchange module 3, the heating module 4, the cooling module 5, the temperature detection device, the first electric three-way valve 6, and the second electric three-way valve 7.

[0042] The three valve ports of the first electric three-way valve 6 are respectively connected to the outlet of the energy storage battery 1, the inlet of the heat exchange module 3 and the first valve port of the second electric three-way valve 7. The second valve port and the third valve port of the second electric three-way valve 7 are respectively connected to the outlet of the energy storage converter 2 and the outlet of the air-cooled module.

[0043] The heat exchange module 3 and the heating module 4 are connected in series. The inlet of the heat exchange module 3 is connected to the outlet of the energy storage battery 1, and the outlet of the heating module 4 is connected to the inlet of the energy storage battery 1, forming a first passage.

[0044] A second path is formed between the cooling module 5 and the energy storage converter 2;

[0045] A third passage is formed between the energy storage battery 1, the first electric three-way valve 6, the second electric three-way valve 7, the energy storage converter 2, and the heating module 4.

[0046] The cooling module 5 has a flow channel switching device, and a fourth passage is formed between the energy storage battery 1, the first electric three-way valve 6, the second electric three-way valve 7, the cooling module 5 and the heating module 4.

[0047] During use, temperature parameters are acquired in real time by a temperature detection device. The drive device has high-temperature mode, normal-temperature mode, low-temperature mode, and cold-temperature mode.

[0048] When the drive device is in high temperature mode, the first passage and the second passage are connected, the heating module 4 is turned off, and the heat exchange module 3 is in operation.

[0049] When the drive device is in normal temperature mode, the second and fourth passages are connected, and the heating module 4 is turned off.

[0050] When the drive device is in low temperature mode, the first passage and the second passage are connected, the heating module 4 is working, and the heat exchange module 3 is off.

[0051] When the drive device is in cold mode, the third passage is connected and the heating module 4 is turned off.

[0052] In actual setup, the drive unit can be a traditional industrial computer or an intelligent operation terminal. Currently, using temperature as a parameter for process control is a very mature technology, and the necessary components can be purchased commercially. Simply set the parameters and the system is ready to run; further details will not be provided here.

[0053] The aforementioned device also includes a check system, specifically comprising a first check valve 8, a second check valve 9, and a third check valve 10. The first check valve 8 is disposed between the outlet of the cooling module 5 and the inlet of the energy storage converter 2. The second check valve 9 is disposed between the inlet of the energy storage converter 2 and the heating module 4. The second check valve 9 is connected in parallel with the outlet of the cooling module 5 and then connected to the third check valve 10. The third check valve 10 is connected in parallel with the heat exchange module 3 and then connected to the heating module 4.

[0054] It also includes a first water pump 11 and a second water pump 12, wherein the first water pump 11 is disposed in the first passage and the second water pump 12 is disposed in the second passage, and both are electrically connected to the drive device.

[0055] The heat exchange module 3 is a plate heat exchanger, and a fan is provided at the contact position with the outside to accelerate the heat exchange speed.

[0056] The heating module 4 is an electric heater, which adopts a design of multiple heating components connected in parallel.

[0057] The cooling module 5 adopts a design of multiple cooling components connected in parallel or in series.

[0058] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A liquid-cooled energy storage thermal management system for thermal energy dispatching of an energy storage battery (1) and an energy storage converter (2), characterized in that: It comprises a heat exchange module (3), a heating module (4), a cooling module (5), a temperature detection device, a driving device, a first electric three-way valve (6), and a second electric three-way valve (7); the driving device is electrically connected with the heat exchange module (3), the heating module (4), the cooling module (5), the temperature detection device, the first electric three-way valve (6), and the second electric three-way valve (7); The three valve ports of the first electric three-way valve (6) are respectively connected with the outlet of the energy storage battery (1), the inlet of the heat exchange module (3), and the first valve port of the second electric three-way valve (7); the second valve port and the third valve port of the second electric three-way valve (7) are respectively connected with the outlet of the energy storage converter (2) and the outlet of the air cooling module; The heat exchange module (3) and the heating module (4) are connected in series; the inlet of the heat exchange module (3) is connected with the outlet of the energy storage battery (1); and the outlet of the heating module (4) is connected with the inlet of the energy storage battery (1), forming a first passage. The cooling module (5) and the energy storage converter (2) form a second passage. The energy storage battery (1), the first electric three-way valve (6), the second electric three-way valve (7), the energy storage converter (2), and the heating module (4) form a third passage. The cooling module (5) has a flow channel switching device; and the energy storage battery (1), the first electric three-way valve (6), the second electric three-way valve (7), the cooling module (5), and the heating module (4) form a fourth passage.

2. The liquid-cooled energy storage thermal management system of claim 1, wherein: According to the temperature parameter obtained by the temperature detection device, the driving device has a high-temperature mode, a normal-temperature mode, a low-temperature mode, and a cold mode; wherein When the driving device is in the high-temperature mode, the first passage and the second passage are communicated, the heating module (4) is closed, and the heat exchange module (3) is in operation; When the driving device is in the normal-temperature mode, the second passage and the fourth passage are communicated, and the heating module (4) is closed; When the driving device is in the low-temperature mode, the first passage and the second passage are communicated, the heating module (4) is in operation, and the heat exchange module (3) is closed; When the driving device is in the cold mode, the third passage is communicated, and the heating module (4) is closed.

3. The liquid-cooled energy storage thermal management system of claim 1, wherein: It also comprises a check system, specifically including a first check valve (8), a second check valve (9), and a third check valve (10); the first check valve (8) is arranged between the outlet of the cooling module (5) and the inlet of the energy storage converter (2); the second check valve (9) is arranged between the inlet of the energy storage converter (2) and the heating module (4); the second check valve (9) is connected with the third check valve (10) after being connected in parallel with the outlet of the cooling module (5); and the third check valve (10) is connected in parallel with the heat exchange module (3) and connected into the heating module (4).

4. The liquid-cooled energy storage thermal management system of claim 1, wherein: It also comprises a first water pump (11) and a second water pump (12); the first water pump (11) is arranged on the first passage, and the second water pump (12) is arranged on the second passage; both are electrically connected with the driving device.

5. The liquid-cooled energy storage thermal management system of claim 1, wherein: The heat exchange module (3) is a plate heat exchanger, which is provided with a fan for accelerating the heat exchange speed at the external contact position.

6. The liquid-cooled energy storage thermal management system of claim 1, wherein: The heating module (4) is an electric heater, which adopts a parallel design of multiple heating components.

7. The liquid-cooled energy storage thermal management system of claim 1, wherein: The cooling module (5) adopts a parallel or serial design of multiple cooling components.

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