Temperature control system of energy storage battery

Abstract

The utility model relates to an energy storage battery temperature control system. The energy storage battery temperature control system comprises a first heat dissipation device, a second heat dissipation device, a battery heat dissipation device and a device switching module. The first heat dissipation device carries out heat dissipation processing on the energy storage battery in a first heat dissipation mode, the second heat dissipation device carries out heat dissipation processing on the energy storage battery in a second heat dissipation mode, the battery heat dissipation device carries out heat dissipation operation according to the first heat dissipation mode or the second heat dissipation mode, and the device switching module switches the first heat dissipation mode and the second heat dissipation mode. According to the function cooperation of the energy storage battery temperature control system, the temperature control range of the energy storage battery is expanded, a proper heat dissipation processing mode is selected, temperature control and energy consumption control are facilitated, and the control effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage battery temperature control, and in particular to an energy storage battery temperature control system. Background Art

[0002] Energy storage batteries are batteries that convert chemical energy into electrical energy and have an energy storage function. They store electrical energy during charging and then release it when needed to meet power demands. During use, energy storage batteries generate surface heat due to chemical and electrochemical changes in their internal structure, electron migration, and material transfer. If this heat cannot be fully dissipated into the environment, it can accumulate internally, affecting battery performance and even causing thermal runaway. Furthermore, excessively low temperatures can degrade the performance of energy storage batteries and reduce their original capacity.

[0003] Therefore, in actual engineering applications, energy storage batteries are equipped with temperature control systems to control the operating temperature of the energy storage batteries within a reasonable range and ensure their performance. However, current temperature control systems mainly use a single heat exchanger, which has a relatively limited operating temperature range and cannot meet the operating temperature requirements of energy storage batteries. This easily leads to heat exchanger power waste and affects the temperature control effect. Utility Model Content

[0004] In order to address the problem that the operating temperature range of the current temperature control system cannot cover the operating temperature requirements of the energy storage battery, resulting in heat exchanger power waste and affecting the temperature control effect, the embodiments of the present disclosure provide an energy storage battery temperature control system.

[0005] At least one embodiment of the present disclosure provides an energy storage battery temperature control system, comprising:

[0006] A first heat dissipation device, configured to dissipate heat from the energy storage battery in a first heat dissipation mode;

[0007] A second heat dissipation device, used to perform heat dissipation processing on the energy storage battery in a second heat dissipation mode;

[0008] a battery heat dissipation device, configured to perform a heat dissipation operation according to the first heat dissipation mode or the second heat dissipation mode;

[0009] A device switching module is used to switch between the first heat dissipation mode and the second heat dissipation mode.

[0010] The energy storage battery temperature control system of the disclosed embodiment includes a first heat dissipation device, a second heat dissipation device, a battery heat dissipation device, and a device switching module. The first heat dissipation device dissipates heat from the energy storage battery in a first heat dissipation mode, while the second heat dissipation device dissipates heat from the energy storage battery in a second heat dissipation mode. The battery heat dissipation device performs heat dissipation operations according to the first heat dissipation mode or the second heat dissipation mode, and the device switching module switches between the first and second heat dissipation modes. By combining the functions of the above devices, the temperature control range of the energy storage battery is expanded, and the appropriate heat dissipation method is selected to facilitate temperature and energy consumption control and improve control effectiveness.

[0011] As one of the optional embodiments, the battery heat dissipation device includes:

[0012] a coolant pipe, connected to the first heat dissipation device and the second heat dissipation device, respectively, for containing coolant;

[0013] The water-cooled heat exchanger is arranged on one side of the energy storage battery and is connected to the coolant pipeline.

[0014] As one of the optional embodiments, the first heat dissipation device is a refrigeration device including a first heat exchanger.

[0015] As one of the optional embodiments, the second heat dissipation device is an air cooling device including a second heat exchanger.

[0016] As one of the optional embodiments, the first heat dissipation device includes:

[0017] a first heat exchanger, configured to perform heat exchange with the coolant pipe;

[0018] The refrigeration module is used to provide a refrigerant for the heat exchange of the first heat exchanger.

[0019] As one of the optional embodiments, the refrigeration module includes:

[0020] condenser;

[0021] compressor;

[0022] Pressure reducing valve;

[0023] The refrigerant pipeline is used to connect the condenser, the compressor, the pressure reducing valve and the first heat exchanger respectively.

[0024] As one of the optional embodiments, the first heat dissipation device includes:

[0025] The second heat exchanger is used to communicate with the coolant pipeline.

[0026] As one of the optional embodiments, it also includes:

[0027] A heat dissipation fan is used to generate a heat dissipation airflow for the first heat exchanger or the second heat exchanger.

[0028] As one of the optional embodiments, it also includes:

[0029] A water pump is connected to the coolant pipeline and is used to pump the coolant.

[0030] As one of the optional embodiments, the device switching module includes:

[0031] a pipeline control device, configured to guide the coolant into the first heat dissipation device or the second heat dissipation device;

[0032] When the coolant is introduced into the first heat dissipation device, a first heat dissipation mode is executed; when the coolant is introduced into the second heat dissipation device, a second heat dissipation mode is executed.

[0033] As one of the optional embodiments, the device switching module includes:

[0034] A three-way valve is used to connect the first heat dissipation device, the second heat dissipation device and the coolant pipeline respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the module structure of an energy storage battery temperature control system according to a disclosed embodiment;

[0036] Figure 2 This is a schematic diagram of the module structure of the energy storage battery temperature control system according to a preferred embodiment;

[0037] Figure 3 This is a schematic diagram of the module structure of an energy storage battery temperature control system according to a specific embodiment;

[0038] Figure numerals: first heat dissipation device 100, second heat dissipation device 101, battery heat dissipation device 102, device switching module 103, coolant pipeline 200, water-cooled heat exchanger 201, first heat exchanger 202, refrigeration module 203, second heat exchanger 204, cooling fan 205, condenser 300, compressor 301, pressure reducing valve 302, refrigerant pipeline 303, water pump 304, three-way valve 305. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0040] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The words "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0041] In order to keep the following description of the embodiments of the present disclosure clear and concise, the present disclosure omits detailed descriptions of some known functions and components.

[0042] Any embodiment of the present disclosure provides an energy storage battery temperature control system.

[0043] Figure 1 This is a schematic diagram of the module structure of the energy storage battery temperature control system according to a disclosed embodiment. Figure 1 As shown, a temperature control system for an energy storage battery according to a disclosed embodiment includes:

[0044] The first heat dissipation device 100 is used to dissipate heat from the energy storage battery in a first heat dissipation mode;

[0045] The second heat dissipation device 101 is used to dissipate heat for the energy storage battery in a second heat dissipation mode;

[0046] a battery heat dissipation device 102, configured to perform a heat dissipation operation according to the first heat dissipation mode or the second heat dissipation mode;

[0047] The device switching module 103 is configured to switch between the first heat dissipation mode and the second heat dissipation mode.

[0048] The first heat dissipation device 100 and the second heat dissipation device 101 are different heat dissipation devices, and the heat dissipation effects of the two devices are different, and the heat dissipation effects generated are suitable for different temperature ranges. Heat dissipation devices include active heat dissipation devices and passive heat dissipation devices. Active heat dissipation devices have better heat dissipation effects and are suitable for heat dissipation in high temperature ranges, but have higher energy consumption. Passive heat dissipation devices have poorer heat dissipation effects but lower energy consumption. Active heat dissipation devices include refrigeration equipment, cooling fans, etc., while passive heat dissipation devices include various air-cooled devices based on heat dissipation structure designs.

[0049] As an optional embodiment, the first heat dissipation device 100 is a refrigeration device including a first heat exchanger. The second heat dissipation device 101 is an air-cooling device including a second heat exchanger. Both the first and second heat exchangers are used in conjunction with the battery heat dissipation device 102 to indirectly transfer heat generated by the energy storage battery to the first and second heat exchangers via a temperature medium, where the heat is dissipated and the temperature is reduced. The temperature medium can be a coolant, cooling water, or a gas medium.

[0050] Among them, the energy storage battery includes multiple battery packs.

[0051] As one of the better implementation methods, Figure 2 This is a schematic diagram of the module structure of the energy storage battery temperature control system according to a preferred embodiment. Figure 2 As shown, the battery heat dissipation device 102 includes:

[0052] a coolant pipe 200 , connected to the first heat dissipation device 100 and the second heat dissipation device 101 , respectively, for containing coolant;

[0053] The water-cooled heat exchanger 201 is arranged on one side of the energy storage battery and is connected to the coolant pipe 200 .

[0054] The water-cooled heat exchanger 201 is arranged on one side of the energy storage battery, and absorbs the heat of the energy storage battery according to the evaporation of the coolant. Figure 2 As shown, coolant pipe 200 forms a coolant circulation loop. The coolant circulates within coolant pipe 200, and water-cooled heat exchanger 201, the first heat exchanger, and the second heat exchanger are all located within this loop. Under the control of device switching module 103, either the first heat exchanger or the second heat exchanger is controllably selected to be included in this loop, with the first heat exchanger or the second heat exchanger selectively performing the heat dissipation function.

[0055] As one of the better implementation methods, Figure 2 As shown, the first heat dissipation device 100 includes:

[0056] A first heat exchanger 202, configured to perform heat exchange with the coolant pipe 200;

[0057] The refrigeration module 203 is used to provide refrigerant for the heat exchange of the first heat exchanger.

[0058] Refrigeration module 203, serving as the heat dissipation foundation for the active heat dissipation device, cools the coolant using a refrigerant. The refrigerant, which can be a cryogenic liquid or gas, exchanges heat with the coolant in first heat exchanger 202, lowering the coolant's temperature. The cooled coolant is then circulated to the energy storage battery side of water-cooled heat exchanger 201, enhancing the cooling effect on the energy storage battery.

[0059] The refrigeration module 203 may use compressor refrigeration, liquid gas refrigeration or a cooling fan.

[0060] As one of the better implementation methods, Figure 3 This is a schematic diagram of the module structure of the energy storage battery temperature control system according to a specific embodiment. Figure 3 As shown, the cooling module includes:

[0061] Condenser 300;

[0062] compressor 301;

[0063] Pressure reducing valve 302;

[0064] The refrigerant pipe 303 is used to connect the condenser 300, the compressor 301, the pressure reducing valve 302 and the first heat exchanger 202 respectively.

[0065] like Figure 3 As shown, the condenser 300 and the compressor 301 generate refrigerant, which is exchanged with the coolant in the first heat exchanger 202 to reduce the temperature of the coolant.

[0066] As one of the better implementation methods, Figure 2 As shown, the second heat dissipation device 101 includes:

[0067] The second heat exchanger 204 is configured to communicate with the coolant pipe 200 .

[0068] Similarly, in the second heat exchanger 204 , the coolant circulating in the coolant pipe 200 can be cooled.

[0069] As a better implementation method, Figure 2 As shown, the energy storage battery temperature control system of a preferred embodiment also includes:

[0070] The heat dissipation fan 205 is used to generate heat dissipation airflow for the first heat exchanger 202 or the second heat exchanger 204 .

[0071] The temperature of the coolant in the first heat exchanger or the second heat exchanger is reduced according to the heat dissipation airflow.

[0072] As a preferred embodiment, in actual operation, an air flow channel is configured for the cooling fan 205, and the first heat exchanger 202 and the second heat exchanger 204 are both arranged in the air flow channel. The first heat exchanger 202 and the second heat exchanger 204 are cooled by one cooling fan 205, thereby reducing the configuration of the cooling fan.

[0073] like Figure 3 As shown, taking a refrigeration module having a compressor and a condenser as an example, a cooling fan can be configured for the refrigeration module, and the first heat exchanger and the second heat exchanger are both arranged in the air flow channel of the cooling fan.

[0074] As a better implementation method, Figure 3 As shown, the energy storage battery temperature control system of a specific embodiment further includes:

[0075] The water pump 304 is connected to the coolant pipe 200 and is used to pump coolant.

[0076] The water pump 304 pumps in the coolant or improves the circulation efficiency of the coolant in the coolant pipe 200. According to the actual switch control, the water pump 304 optionally pumps in new coolant or increases the pressure of the original coolant in the coolant pipe 200.

[0077] The device switching module 103 switches between the first and second cooling modes, i.e., controls the operation of the first cooling device 100 or the second cooling device 101. The device switching module 103 includes a switch control device or a pipe control device. For example, the switch control device employs a switch control principle to activate the first cooling device 100 or the second cooling device 101.

[0078] As a better implementation method, Figure 2 As shown, the device switching module 103 includes:

[0079] a pipeline control device, used for introducing the coolant into the first heat dissipation device 100 or the second heat dissipation device 101;

[0080] When the coolant is introduced into the first heat dissipation device 100 , the first heat dissipation mode is executed; when the coolant is introduced into the second heat dissipation device 101 , the second heat dissipation mode is executed.

[0081] The pipeline control device selects a coolant channel according to the switching mode and directs the coolant to either the first heat dissipation device 100 or the second heat dissipation device 101, thereby incorporating the first heat dissipation device 100 or the second heat dissipation device 101 into the coolant circulation loop. The pipeline control device may utilize a controlled pipeline valve.

[0082] As a better implementation method, Figure 3 As shown, the device switching module 103 includes:

[0083] The three-way valve 305 connects the first heat dissipation device 100 , the second heat dissipation device 101 and the coolant pipe 200 respectively.

[0084] like Figure 3 As shown, when the three-way valve 1-3 is turned on, the first heat exchanger is incorporated into the coolant circulation loop, and the first heat dissipation device 100 is activated. When the three-way valve 2-3 is turned on, the second heat exchanger is incorporated into the coolant circulation loop, and the second heat dissipation device 101 is activated.

[0085] The energy storage battery temperature control system of any embodiment of the present disclosure includes a first heat dissipation device 100, a second heat dissipation device 101, a battery heat dissipation device 102, and a device switching module 103. The first heat dissipation device 100 dissipates heat from the energy storage battery in a first heat dissipation mode, the second heat dissipation device 101 dissipates heat from the energy storage battery in a second heat dissipation mode, the battery heat dissipation device 102 performs heat dissipation operations according to the first heat dissipation mode or the second heat dissipation mode, and the device switching module 103 switches between the first heat dissipation mode and the second heat dissipation mode. By combining the functions of the above devices, the temperature control range of the energy storage battery is expanded, and the appropriate heat dissipation treatment method is selected to facilitate temperature control, energy consumption control, and improve control effect.

[0086] Regarding this disclosure, the following points need to be explained:

[0087] (1) The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to the general design.

[0088] (2) For the sake of clarity, the thickness and size of layers or structures in the drawings used to describe the embodiments of the present invention are exaggerated. It is understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, the element may be "directly on" or "under" the other element, or intervening elements may be present.

[0089] (3) Unless there is a conflict, the embodiments of the present disclosure and the features therein may be combined to form new embodiments. The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. The scope of protection of the present disclosure shall be based on the scope of protection of the claims.

[0090] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A temperature control system for an energy storage battery, characterized in that: include: A first heat dissipation device, configured to dissipate heat from the energy storage battery in a first heat dissipation mode; A second heat dissipation device, used to perform heat dissipation processing on the energy storage battery in a second heat dissipation mode; a battery heat dissipation device, configured to perform a heat dissipation operation according to the first heat dissipation mode or the second heat dissipation mode; A device switching module is used to switch between the first heat dissipation mode and the second heat dissipation mode.

2. The energy storage battery temperature control system according to claim 1, characterized in that: The battery heat dissipation device includes: a coolant pipe, connected to the first heat dissipation device and the second heat dissipation device, respectively, and used to contain coolant; The water-cooled heat exchanger is arranged on one side of the energy storage battery and is connected to the coolant pipeline.

3. The energy storage battery temperature control system according to claim 1, characterized in that: The first heat dissipation device is a refrigeration device including a first heat exchanger.

4. The energy storage battery temperature control system according to claim 1, characterized in that: The second heat dissipation device is an air cooling device including a second heat exchanger.

5. The energy storage battery temperature control system according to claim 2, characterized in that: The first heat dissipation device includes: a first heat exchanger, configured to perform heat exchange with the coolant pipe; The refrigeration module is used to provide a refrigerant for the heat exchange of the first heat exchanger.

6. The energy storage battery temperature control system according to claim 5, characterized in that: The refrigeration module comprises: condenser; compressor; Pressure reducing valve; The refrigerant pipeline is used to connect the condenser, the compressor, the pressure reducing valve and the first heat exchanger respectively.

7. The energy storage battery temperature control system according to claim 2, characterized in that: The first heat dissipation device includes: The second heat exchanger is used to communicate with the coolant pipeline.

8. The energy storage battery temperature control system according to claim 6 or 7, characterized in that: Also includes: A heat dissipation fan is used to generate a heat dissipation airflow for the first heat exchanger or the second heat exchanger.

9. The energy storage battery temperature control system according to claim 2, characterized in that: The device switching module includes: a pipeline control device, configured to guide the coolant into the first heat dissipation device or the second heat dissipation device; When the coolant is introduced into the first heat dissipation device, a first heat dissipation mode is executed; when the coolant is introduced into the second heat dissipation device, a second heat dissipation mode is executed.

10. The energy storage battery temperature control system according to claim 6 or 7, characterized in that: The device switching module includes: A three-way valve is used to connect the first heat dissipation device, the second heat dissipation device and the coolant pipeline respectively.

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