Liquid cooling heat pump system, thermal management system, thermal management method, equipment and medium

Abstract

The invention discloses a liquid cooling heat pump system, a heat management system, a heat management method, equipment and a medium, the liquid cooling heat pump system comprises a plurality of liquid cooling heat pump modules, the plurality of liquid cooling heat pump modules are connected in parallel, and each liquid cooling heat pump module can operate independently to adjust the temperature of a temperature adjusting object. Due to the connection relation, the plurality of liquid-cooled heat pump modules can be mutually standby, so that once the working liquid-cooled heat pump module fails, the standby liquid-cooled heat pump module can replace the failed liquid-cooled heat pump module to work through the connection relation of parallel connection. Under the scene that the temperature adjustment object is the energy storage system, the structure of the liquid cooling heat pump system can reduce the duration of the temperature of the energy storage system in an improper temperature range, so that the service life of the energy storage system is prolonged. In addition, the arrangement of the liquid cooling heat pump plug interface facilitates the realization of rapid assembly between the liquid cooling heat pump system and a temperature regulation object, simplifies the assembly process, and improves the heat management efficiency.

Description

Technical Field

[0001] The present application relates to the field of batteries, and in particular to a liquid-cooled heat pump system, a thermal management system, a thermal management method, a device and a medium. Background Art

[0002] Energy storage devices such as energy storage containers and energy storage cabinets refer to highly concentrated energy storage systems formed by placing multiple batteries in a cabinet. Batteries are sensitive to temperature. When the temperature is too high, the battery life will be reduced; when the temperature is too low, the battery charging and discharging efficiency will be affected. Therefore, the battery temperature needs to be controlled within an appropriate temperature range.

[0003] The above statements are only used to provide background information related to the present application and do not necessarily constitute prior art. Summary of the invention

[0004] In view of the above problems, the embodiments of the present application provide a liquid-cooled heat pump system, a thermal management system, a thermal management method, a device and a medium, which can reduce the number of times the temperature of the battery in the energy storage system is not within a reasonable temperature range.

[0005] In a first aspect, the present application provides a liquid cooling heat pump system, comprising: A first delivery pipeline, at least two liquid-cooling heat pump modules connected in parallel, and a liquid-cooling heat pump plug interface; The first delivery pipeline passes through the at least two liquid-cooled heat pump modules, and is used to allow the fluid in the first delivery pipeline to perform heat exchange with a target liquid-cooled heat pump module, and the target liquid-cooled heat pump module is a liquid-cooled heat pump module in working state among the at least two liquid-cooled heat pump modules; The liquid cooling heat pump plug port is arranged at the end of the first delivery pipeline.

[0006] In the solution provided in this embodiment, the liquid-cooled heat pump system includes multiple liquid-cooled heat pump modules, and the multiple liquid-cooled heat pump modules are connected in parallel. Each liquid-cooled heat pump module can operate independently to adjust the temperature of the temperature regulation object. This connection relationship allows multiple liquid-cooled heat pump modules to be used as backup for each other. Therefore, once a working liquid-cooled heat pump module fails, the backup liquid-cooled heat pump module can be used to replace the failed liquid-cooled heat pump module through the parallel connection relationship. In the scenario where the temperature regulation object is an energy storage system, this structure of the liquid-cooled heat pump system can reduce the time that the temperature of the energy storage system is within an inappropriate temperature range, thereby increasing the service life of the energy storage system. In addition, the provision of a liquid-cooled heat pump plug interface facilitates the rapid assembly between the liquid-cooled heat pump system and the temperature regulation object, simplifies the assembly process, and improves thermal management efficiency.

[0007] In some embodiments, the liquid-cooled heat pump module comprises: Compressor, reversing valve, first heat exchange module, throttling module, second heat exchange module; The compressor is arranged between the input end of the reversing valve and the second output end of the reversing valve; The first heat exchange module is arranged between the first output end of the reversing valve and the throttling module; The second heat exchange module is arranged between the throttling module and the third output end of the reversing valve.

[0008] In the solution provided in this embodiment, the reversing valve in the liquid-cooled heat pump module enables the liquid-cooled heat pump module to both cool and heat. Compared with the structure that uses an electric heater and a refrigerant circuit to achieve heating and cooling, it not only has a small number of components and a simple structure, but also can reduce equipment investment costs and improve equipment operation reliability.

[0009] In some embodiments, the liquid-cooled heat pump module further includes a flow conversion module, a first delivery pump, a third heat exchange module, and a second delivery pipeline; The second delivery pipeline passes through the flow conversion module, the first delivery pump and the third heat exchange module respectively; The first delivery pipeline also passes through the third heat exchange module; The third heat exchange module is used to perform heat exchange between the fluid in the second delivery pipeline and the fluid in the first delivery pipeline.

[0010] In the solution provided in this embodiment, by providing the second delivery pipeline and the third heat exchange module, the heat generated by the converter module is recovered and reused, thereby improving the temperature regulation efficiency of the liquid-cooled heat pump system.

[0011] In some embodiments, the liquid-cooled heat pump system further includes: an expansion water tank, a second delivery pump, and a third delivery pipeline; The second delivery pump is arranged on a common pipeline section of the at least two liquid-cooled heat pump modules; The expansion water tank is connected to the common pipeline section through the third delivery pipeline.

[0012] In the solution provided in this embodiment, the expansion water tank automatically receives and compensates the fluid in the first delivery pipeline based on the pressure of the fluid in the first delivery pipeline, thereby realizing automatic regulation of the pressure of the fluid in the first delivery pipeline and improving the temperature regulation efficiency of the liquid-cooled heat pump system.

[0013] In some embodiments, the liquid cooling heat pump system further includes: a first pipeline regulating component, a first liquid injection port, and a fourth delivery pipeline; The first pipeline regulating component is arranged on the fourth delivery pipeline; one end of the fourth delivery pipeline is connected to the first liquid injection port, and the other end is connected to the common pipeline section.

[0014] In the solution provided in this embodiment, the first liquid injection port, the first pipeline adjustment component and the fourth delivery pipeline are provided to facilitate the separate liquid injection into the first delivery pipeline, which helps to achieve rapid assembly between the liquid-cooled heat pump system and the temperature adjustment object.

[0015] In a second aspect, the present application provides a thermal management system, comprising: a fifth delivery pipeline, an energy storage plug interface, an energy storage system, and the liquid-cooled heat pump system described in the first aspect; The end of the fifth delivery pipeline is provided with the energy storage plug port, and the fifth delivery pipeline passes through the energy storage system, so as to enable the fluid in the fifth delivery pipeline to perform heat exchange with the energy storage system; The energy storage plug interface is pluggably connected to the liquid cooling heat pump plug interface in the liquid cooling heat pump system.

[0016] In the solution provided by this embodiment, the energy storage system and the liquid-cooled heat pump system can be quickly assembled through the pluggable connection between the energy storage plug interface and the liquid-cooled heat pump plug interface, so that the liquid-cooled heat pump system can adjust the temperature of the energy storage system. In addition, the parallel connection relationship of at least two liquid-cooled heat pump modules in the liquid-cooled heat pump system can improve the reliability of the liquid-cooled heat pump system in adjusting the temperature of the energy storage system.

[0017] In some embodiments, the fifth delivery pipeline includes a first branch pipe and a second branch pipe, the first branch pipe is connected to the second branch pipe, the end of the first branch pipe is provided with the energy storage plug interface, and the second branch pipe passes through the energy storage system; The thermal management system further comprises: a second pipeline regulating assembly, a second liquid injection port and a sixth delivery pipeline; The second pipeline regulating assembly is arranged on the sixth delivery pipeline; one end of the sixth delivery pipeline is connected to the second liquid injection port, and the other end is connected to the first branch pipe.

[0018] In the solution provided in this embodiment, the second liquid injection port, the second pipeline regulating assembly and the sixth delivery pipeline are provided to facilitate the injection of liquid into the sixth delivery pipeline, which helps to improve the assembly efficiency between the liquid-cooled heat pump system and the energy storage system.

[0019] In some embodiments, the thermal management system further includes: a third delivery pump disposed on the first branch pipe.

[0020] In the solution provided in this embodiment, the third delivery pump can change the flow rate of the fluid in the fifth delivery pipeline, which helps to improve the thermal management efficiency of the thermal management system.

[0021] In some embodiments, the thermal management system further includes: a pressure relief module disposed on the second branch pipe.

[0022] In the solution provided in this embodiment, by providing a pressure relief module, the damage to the pipeline caused by the high pressure of the fluid in the fifth delivery pipeline can be reduced.

[0023] In some embodiments, at least one of a pressure acquisition module, a flow acquisition module and a temperature acquisition module is disposed on the first branch pipe.

[0024] In the solution provided in this embodiment, the data collected by the pressure acquisition module, the flow acquisition module and / or the temperature acquisition module are helpful for flexible control of the thermal management system.

[0025] In a third aspect, the present application provides an electrical device, comprising a control module and the thermal management system described in the second aspect.

[0026] In a fourth aspect, the present application provides a thermal management method, which is applied to the thermal management system described in the second aspect, and the method includes: Under the condition that the temperature adjustment condition of the energy storage system is met, the target liquid-cooled heat pump module is determined from the at least two liquid-cooled heat pump modules based on the operating parameters of the thermal management system; The first delivery pipeline and the fifth delivery pipeline are controlled to form a first delivery loop between the target liquid-cooled heat pump module and the energy storage system, and the fluid is driven to flow in the first delivery loop.

[0027] In the solution provided in this embodiment, at least two liquid-cooled heat pump modules connected in parallel can serve as backup for each other. Therefore, when determining the target liquid-cooled heat pump module based on the operating parameters, the liquid-cooled heat pump module can be flexibly determined, thereby improving the reliability of temperature regulation of the energy storage system.

[0028] In some embodiments, based on the operating parameters of the thermal management system, determining the target liquid-cooled heat pump module from the at least two liquid-cooled heat pump modules includes: Based on the operating condition parameters, determining a target number of liquid-cooled heat pump modules required for temperature regulation of the energy storage system; In the case where the target number is greater than the current number of working liquid-cooled heat pump modules in the liquid-cooled heat pump system, an increased number of liquid-cooled heat pump modules are selected from the spare liquid-cooled heat pump modules of the at least two liquid-cooled heat pump modules, and the remaining number of liquid-cooled heat pump modules and the working liquid-cooled heat pump modules are determined to be the target liquid-cooled heat pump modules, and the increased number is the difference between the target number and the current number; When the target number is less than the current number, the liquid-cooled heat pump module obtained by removing the reduced number of liquid-cooled heat pump modules from the working liquid-cooled heat pump modules is determined to be the target liquid-cooled heat pump module, and the reduced number is the difference between the current number and the target number.

[0029] In the solution provided in this embodiment, the target number is compared with the current number of working liquid-cooled heat pump modules, and then the number of working liquid-cooled heat pump modules is adjusted based on the standby liquid-cooled heat pump modules, thereby improving the temperature regulation efficiency and the reliability of temperature regulation, thereby increasing the service life of the energy storage system.

[0030] In some embodiments, the operating parameters include at least one of the following: The temperature of the energy storage system; the pressure of the fluid in the thermal management system; The flow rate of the fluid in the thermal management system.

[0031] In the solution provided in this embodiment, the target liquid-cooled heat pump module is determined by the temperature, pressure and flow rate in the operating condition parameters, which conforms to the actual operating conditions, and the number of target liquid-cooled heat pump modules determined by these parameters is also relatively accurate, which helps to improve the service life of the energy storage system.

[0032] In some embodiments, the thermal management system further includes a flow conversion module, a first delivery pump, a third heat exchange module, and a second delivery pipeline; The method further comprises: In the process of forming the first delivery loop, the second delivery pipeline is controlled to form a second delivery loop between the flow conversion module, the first delivery pump and the third heat exchange module.

[0033] In the solution provided in this embodiment, the heat generated by the converter module can be recovered and reused through the second transmission loop, thereby improving the efficiency of thermal management.

[0034] In some embodiments, the thermal management system further includes a pressure relief module; and the method further includes: During the process of driving the fluid to flow in the first transmission circuit, the pressure relief module is controlled to release pressure based on detecting that the pressure of the fluid flowing through the pipeline section at the energy storage system reaches a preset threshold.

[0035] In the solution provided in this embodiment, when the fluid pressure reaches a preset threshold, the pressure relief module is controlled to release pressure, which can reduce damage to the delivery pipeline.

[0036] In some embodiments, the thermal management system further includes a first delivery pump disposed in the first delivery pipeline, and a second delivery pump disposed in the second delivery pipeline; the method further includes: When the driving fluid flows in the first delivery circuit, the operating parameters of at least one of the second delivery pump and the third delivery pump are adjusted based on the flow rate of the fluid in the first delivery circuit.

[0037] In the solution provided in this embodiment, based on the detected flow rate, the operating parameters of at least one of the second delivery pump and the third delivery pump are adjusted, which helps to improve the thermal management efficiency.

[0038] In a fifth aspect, the present application provides a thermal management device, which is applied to the thermal management system described in the second aspect, and the device includes: A determination module, configured to determine the target liquid-cooled heat pump module from the at least two liquid-cooled heat pump modules based on the operating parameters of the thermal management system when the temperature adjustment conditions of the energy storage system are met; A forming module is used to control the first delivery pipeline and the fifth delivery pipeline to form a first delivery loop between the target liquid-cooled heat pump module and the energy storage system, and drive the fluid to flow in the first delivery loop.

[0039] In a sixth aspect, the present application provides an electronic device, including: a processor and a memory; The memory is used to store computer programs; The processor is used to execute the program stored in the memory to implement the thermal management method described in the fourth aspect.

[0040] In a seventh aspect, the present application provides a computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the thermal management method described in the fourth aspect.

[0041] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only used for the purpose of illustrating the preferred embodiments and are not to be considered as limitations of the present application. In addition, the same reference numerals are used throughout the drawings to represent the same components.

[0043] Figure 1A schematic structural diagram of a liquid cooling heat pump system according to some embodiments of the present application; Figure 2 This is a schematic diagram of the structure of a liquid-cooled heat pump module according to some embodiments of the present application; Figure 3 It is another structural schematic diagram of the liquid cooling heat pump system of some embodiments of the present application; Figure 4 It is another structural schematic diagram of the liquid cooling heat pump system of some embodiments of the present application; Figure 5 A schematic diagram of the structure of a thermal management system according to some embodiments of the present application; Figure 6 It is another structural schematic diagram of a thermal management system of some embodiments of the present application; Figure 7 This is a schematic diagram of the structure of electrical equipment in some embodiments of the present application; Figure 8 A schematic flow chart of a thermal management method according to some embodiments of the present application; Fig. 9 This is a schematic diagram of the structure of a thermal management device in some embodiments of the present application; Fig.10 A schematic diagram of the structure of an electronic device according to some embodiments of the present application; Fig.11 A schematic diagram of the structure of a computer-readable storage medium according to some embodiments of the present application. DETAILED DESCRIPTION

[0044] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0046] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0047] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0048] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0049] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0050] With the development of science and technology, the demand for energy is also growing. In order to meet energy demand while reducing carbon emissions as much as possible, it is necessary to apply renewable energy such as wind power generation and photovoltaic power generation on a large scale. However, renewable energy has the characteristic of unstable output. For example, when the wind is weak or there is a lack of sunlight, the corresponding wind power generation or photovoltaic power generation cannot output energy stably. In order to reduce the number of events where the unstable output of renewable energy affects the safe operation of the power grid, an energy storage system (ESS, energy storage system) is required to peak and frequency regulate the power grid to stabilize the power grid.

[0051] An energy storage system refers to a highly concentrated energy storage device formed by placing multiple batteries in a cabinet. An energy storage system usually includes multiple parallel battery clusters, each of which is composed of multiple batteries connected in series. Batteries may include but are not limited to lithium-ion batteries, lithium metal batteries, lead-acid batteries, nickel-cathode batteries, nickel-hydrogen batteries, lithium-sulfur batteries, lithium-air batteries or sodium-ion batteries, etc. The scale of batteries may include but are not limited to single cells, battery modules or battery packs, etc. In actual working conditions, the direct current provided by the battery cluster can be converted into alternating current through a single high-power power conditioning converter (PCS, power conditioning system), and then the alternating current can be integrated into the power grid.

[0052] Batteries are sensitive to temperature. When the temperature is too high, the service life of the battery will be reduced. In order to control the temperature of the battery, when the temperature is too low, it will affect the charging and discharging efficiency of the battery. Therefore, the temperature of the battery needs to be controlled within an appropriate temperature range. In the related technology, each energy storage system is equipped with a cooling device, and the cooling device cools the energy storage system. When the configured cooling device fails, the cooling device can no longer cool the energy storage system, resulting in the temperature of the energy storage system not being within the appropriate temperature range, affecting the service life of the energy storage system.

[0053] In order to improve the reliability of temperature regulation of the energy storage system and thus increase the service life of the energy storage system, one or more embodiments of the present application provide a liquid-cooled heat pump system, which includes a plurality of liquid-cooled heat pump modules, which are connected in parallel, and each liquid-cooled heat pump module can operate independently to adjust the temperature of the temperature regulation object. This connection relationship allows the plurality of liquid-cooled heat pump modules to be used as backup for each other. Therefore, once a working liquid-cooled heat pump module fails, the backup liquid-cooled heat pump module can be used to replace the failed liquid-cooled heat pump module through the parallel connection relationship. In the scenario where the temperature regulation object is an energy storage system, this structure of the liquid-cooled heat pump system can reduce the length of time that the temperature of the energy storage system is within an inappropriate temperature range, thereby increasing the service life of the energy storage system. In addition, the provision of a liquid-cooled heat pump plug-in interface facilitates the rapid assembly between the liquid-cooled heat pump system and the temperature regulation object, simplifies the assembly process, and improves thermal management efficiency.

[0054] The energy storage system disclosed in one or more embodiments of the present application includes but is not limited to being used in scenarios such as peak shaving and valley filling, and backup power. Peak shaving and valley filling refers to the energy storage system charging during the low power consumption period and discharging to users during the peak power consumption period, thereby alleviating the power supply pressure of the power grid during the peak period and improving the utilization rate of the power grid during the valley period. Backup power refers to actively disconnecting the power grid and establishing a microgrid system in the event of a power outage or large fluctuations in the power grid, thereby using energy storage to ensure the power supply of important loads.

[0055] One or more embodiments of the present application provide a liquid cooling heat pump system, such as Figure 1 As shown, the liquid cooling heat pump system may include: A first delivery pipeline 11, at least two liquid-cooling heat pump modules 12 connected in parallel, and a liquid-cooling heat pump plug interface 13; The first delivery pipeline 11 passes through at least two liquid-cooled heat pump modules 12, and is used to allow the fluid in the first delivery pipeline 11 to perform heat exchange with a target liquid-cooled heat pump module, and the target liquid-cooled heat pump module is a liquid-cooled heat pump module in a working state among the at least two liquid-cooled heat pump modules 12; The liquid cooling heat pump socket 13 is disposed at the end of the first delivery pipeline 11 .

[0056] In this embodiment, the first delivery pipeline 11 is a pipeline for delivering fluid. The fluid is a substance that can be heat exchanged, and the fluid may include but is not limited to gas, liquid, etc. Among them, the gas may include but is not limited to air. The liquid includes but is not limited to water, salt water, etc.

[0057] In this embodiment, the first delivery pipeline 11 includes an input pipeline and an output pipeline, and the fluid flows into the first delivery pipeline 11 from the input pipeline and flows out of the first delivery pipeline 11 from the output pipeline. The liquid cooling heat pump plug interface 13 is set at the port of the input pipeline and the output pipeline. For the input pipeline, the port here refers to the port through which the fluid flows when it flows into the input pipeline, and for the output pipeline, the port here refers to the port through which the fluid flows when it flows out of the output pipeline.

[0058] In practical applications, for an energy storage system, a heat pump socket 13 may be provided, and the heat pump socket 13 passes through both the end of the input pipeline of the first delivery pipeline 11 and the end of the output pipeline of the first delivery pipeline 11. Of course, according to actual needs, two heat pump sockets 13 may also be provided, one heat pump socket 13 passes through the end of the input pipeline of the first delivery pipeline 11, and the other heat pump socket 13 passes through the end of the output pipeline of the first delivery pipeline 11.

[0059] In this embodiment, a switch valve is provided in the liquid cooling heat pump interface 13, and the switch valve can control the first delivery pipeline 11 passing through the liquid cooling heat pump interface 13 to be turned off or turned on, thereby realizing independent liquid storage of the liquid cooling heat pump system. In the application, the structure of the liquid cooling heat pump interface 13 includes but is not limited to SAE, VDA and other structures. The switch valve includes but is not limited to a ball valve, a butterfly valve and the like.

[0060] In this embodiment, in order to save costs, the liquid-cooled heat pump system can centrally regulate the temperature of multiple energy storage systems. In this case, multiple heat pump sockets 13 or multiple pairs of heat pump sockets 13 can be set. It should be understood that if multiple heat pump sockets 13 are set, each heat pump socket corresponds to an energy storage system, and each heat pump socket passes through the end of the input pipeline of the first delivery pipeline 11 and the end of the output pipeline of the first delivery pipeline 11. If multiple pairs of heat pump sockets 13 are set, each pair of heat pump sockets 13 corresponds to an energy storage system, and one heat pump socket 13 in each pair of heat pump sockets 13 passes through the end of the input pipeline of the first delivery pipeline 11, and the other heat pump socket 13 passes through the end of the output pipeline of the first delivery pipeline 11.

[0061] In this embodiment, the first delivery pipeline 11 passes through at least two liquid-cooled heat pump modules 12, including but not limited to, there is a pipeline section on the first delivery pipeline 11 that contacts at least two liquid-cooled heat pump modules 12, or there is a pipeline section on the first delivery pipeline 11 that passes through at least two liquid-cooled heat pump modules 12.

[0062] The first delivery pipeline 11 passes through at least two liquid-cooled heat pump modules 12. When the fluid flows to the pipeline section passing through the target liquid-cooled heat pump module, heat exchange occurs with the target liquid-cooled heat pump module in the pipeline section. In the scenario of cooling the energy storage system, the heat exchange here means that the heat of the fluid is transferred to the target liquid-cooled heat pump module, and the temperature of the fluid is reduced.

[0063] In this embodiment, each of the at least two liquid-cooled heat pump modules can operate independently or in conjunction with other liquid-cooled heat pump modules. Therefore, the target liquid-cooled heat pump module is one or more liquid-cooled heat pump modules in the at least two liquid-cooled heat pump modules 12. The liquid-cooled heat pump modules that are not in working state in the at least two liquid-cooled heat pump modules can be used as spare liquid-cooled heat pump modules. When the liquid-cooled heat pump modules in working state fail or the temperature adjustment effect of the liquid-cooled heat pump modules in working state in the liquid-cooled heat pump system is not enough, some liquid-cooled heat pump modules can be selected from the spare liquid-cooled heat pump modules to participate in the process of temperature adjustment of the temperature adjustment object.

[0064] In the solution provided in this embodiment, the liquid-cooled heat pump system includes multiple liquid-cooled heat pump modules, and the multiple liquid-cooled heat pump modules are connected in parallel. Each liquid-cooled heat pump module can operate independently to adjust the temperature of the temperature regulation object. This connection relationship allows multiple liquid-cooled heat pump modules to be used as backup for each other. Therefore, once a working liquid-cooled heat pump module fails, the backup liquid-cooled heat pump module can be used to replace the failed liquid-cooled heat pump module through the parallel connection relationship. In the scenario where the temperature regulation object is an energy storage system, this structure of the liquid-cooled heat pump system can reduce the time that the temperature of the energy storage system is within an inappropriate temperature range, thereby increasing the service life of the energy storage system. In addition, the provision of a liquid-cooled heat pump plug interface facilitates the rapid assembly between the liquid-cooled heat pump system and the temperature regulation object, simplifies the assembly process, and improves thermal management efficiency.

[0065] In one or more embodiments of the present application, Figure 2 As shown, the liquid-cooled heat pump module 12 may include: Compressor 21, reversing valve 22, first heat exchange module 23, throttling module 24, second heat exchange module 25; The compressor 21 is disposed between the input end of the reversing valve 22 and the second output end of the reversing valve 22; The first heat exchange module 23 is disposed between the first output end of the reversing valve 22 and the throttling module 24; The second heat exchange module 25 is disposed between the throttling module 24 and the third output end of the reversing valve 22 .

[0066] In this embodiment, the temperature regulation demand of the temperature regulation object can be pre-estimated, and based on the estimated results, a suitable compressor can be selected. For example, for a temperature regulation demand of less than 40kW, a scroll compressor or a rotor compressor can be used. For a temperature regulation demand of 40kW to 400kW, a screw compressor can be used. For a larger temperature regulation demand, a centrifugal compressor can be used. It should be understood that the temperature regulation demand here represents the cooling capacity or heating capacity required to adjust the temperature of the temperature regulation object to a suitable temperature range.

[0067] In this embodiment, the first heat exchange module 23 can be applied to both the heating scenario of the liquid-cooled heat pump module and the cooling scenario of the hot-cold heat pump module, and the functions of the first heat exchange module 23 are different in these two scenarios. Specifically, in the cooling scenario, the first heat exchange module 23 is used as a condenser, which has the function of heat dissipation and temperature reduction. In the heating scenario, the first heat exchange module 23 is used as an evaporator, which has the function of absorbing heat and heating. In the application, the first heat exchange module 23 includes but is not limited to a dual-purpose heat exchanger for evaporation and condensation.

[0068] In this embodiment, the reversing valve 22 is a directional control valve with two or more flow forms and two or more oil ports. It is a valve that realizes the communication, cutting and reversing of hydraulic oil flow, as well as pressure unloading and sequential action control. The liquid-cooled heat pump module can be cooled or heated by reversing between the ports of the reversing valve. In applications, the reversing valve 22 includes but is not limited to a four-way valve, a six-way valve, etc.

[0069] In this embodiment, the throttling module 24 is used to control the flow rate of the refrigerant flowing in the liquid-cooled heat pump module 12, so as to achieve the effect of adjusting the temperature of the refrigerant. Taking the refrigeration scenario as an example, the throttling module 24 can throttle the medium-temperature and high-pressure refrigerant into low-temperature and low-pressure wet steam. In the application, the throttling module 24 includes but is not limited to an electronic expansion valve.

[0070] In this embodiment, in order to meet environmental protection requirements, the refrigerant flowing in the liquid-cooled heat pump module 12 includes but is not limited to refrigerants with components of R134A, R410A, R513A or R32.

[0071] In the scenario of using the liquid cooling heat pump system to cool the temperature control object, the compressor 21 compresses the low temperature and low pressure gas into high temperature and high pressure gas, and the high temperature and high pressure gas flows into the reversing valve from the input end of the reversing valve 22 and flows out from the first output end of the reversing valve 22. Then, the high temperature and high pressure gas exchanges heat with the air at the first heat exchange module 23, the high pressure gas dissipates heat, the air absorbs heat, the high pressure gas liquefies into liquid refrigerant, the liquid refrigerant flows through the throttling module 24, and the liquid refrigerant is throttled by the throttling module 24 to become low temperature and low pressure wet steam. When the low temperature and low pressure wet steam flows through the second heat exchange module 25, it exchanges heat with the coolant in the common pipeline section that passes through the second heat exchange module 25 and the liquid cooling heat pump plug interface 13 at the same time, and the temperature of the cooling heat is transferred to the low temperature and low pressure wet steam, the temperature of the coolant is reduced, and the low temperature and low pressure wet steam absorbs heat to become low temperature and low pressure gas, and then the low temperature and low pressure gas returns to the compressor 21. This reciprocating cycle realizes the refrigeration of the temperature control object by the liquid cooling heat pump system.

[0072] In the scenario of using the liquid-cooled heat pump system to heat the temperature-regulated object, the compressor 21 compresses the low-temperature and low-pressure gas into high-temperature and high-pressure gas, and the high-pressure gas flows into the reversing valve from the input end of the reversing valve 22, and flows out from the third output end of the reversing valve 22, flows through the second heat exchange module 25, and exchanges heat with the coolant in the common pipeline section at the second heat exchange module 25, and the high-temperature and high-pressure gas transfers heat to the coolant, the coolant heats up, and the high-temperature and high-pressure gas dissipates heat and becomes low-temperature and low-pressure liquid, and the low-temperature and low-pressure liquid flows through the throttling module 24 and the first heat exchange module 23 to become low-temperature and low-pressure wet steam, and the low-temperature and low-pressure wet steam flows through the first output end of the reversing valve 22 and the second output end of the reversing valve 22 back to the compressor 21, and the compressor 21 does work to compress the low-temperature and low-pressure wet steam. This reciprocating cycle enables the liquid-cooled heat pump system to heat the temperature-regulated object.

[0073] In this embodiment, in order to improve the compression efficiency of the compressor, a gas separator may be provided between the first heat exchange module 23 and the throttling module 24, and a drying processor may be provided between the second output end of the reversing valve 22 and the compressor 21. The gas separator is used to separate the gas and liquid in the fluid, and the drying processor is used to dry the gas that is about to flow into the compressor 21.

[0074] In this embodiment, in order to reduce the damage to the pipeline for conveying fluid caused by the excessively high pressure of the refrigerant in the circuit, a pressure sensor and a pressure switch may be provided in the circuit for conveying the refrigerant. The pressure sensor is used to detect the pressure of the circuit for conveying the refrigerant, and the pressure switch is used to release the pressure when the pressure of the circuit for conveying the refrigerant is greater than the pressure threshold.

[0075] In the solution provided in this embodiment, the reversing valve in the liquid-cooled heat pump module enables the liquid-cooled heat pump module to both cool and heat. Compared with the structure that uses an electric heater and a refrigerant circuit to achieve heating and cooling, it not only has a small number of components and a simple structure, but also can reduce equipment investment costs and improve equipment operation reliability.

[0076] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0077] In one or more embodiments of the present application, Figure 2 As shown, the liquid-cooled heat pump module further includes a flow conversion module 26, a first delivery pump 27, a third heat exchange module 28 and a second delivery pipeline 29; The second delivery pipeline 29 passes through the flow conversion module 26, the first delivery pump 27 and the third heat exchange module 28 respectively; The first delivery pipeline 11 also passes through the third heat exchange module 28; The third heat exchange module 28 is used to perform heat exchange between the fluid in the second delivery pipeline 29 and the fluid in the first delivery pipeline 27 .

[0078] In this embodiment, the converter module 26 is used to realize AC-DC conversion. The third heat exchange module 28 can realize the recovery and reuse of the heat generated by the converter module 26 in the scenario where the liquid cooling heat pump system heats the temperature control object. In the application, the converter module 26 includes but is not limited to a power storage converter (PCS, Power Conversion System) or an AC-DC power supply module.

[0079] The third heat exchange module 28 is used to exchange heat between the fluid in the second delivery pipeline 29 and the fluid in the first delivery pipeline 27, which means that the fluid in the second delivery pipeline 29 and the fluid in the first delivery pipeline 27 conduct heat to each other. In the scenario where the liquid-cooled heat pump system heats the temperature-regulated object, at the third heat exchange module 28, the fluid in the second delivery pipeline 29 conducts the heat obtained from the flow conversion module to the fluid in the first delivery pipeline 11, the fluid in the first delivery pipeline 11 is heated, and the fluid in the second delivery pipeline 29 is cooled.

[0080] In application, the third heat exchange module 28 can be set at any position in the first delivery pipeline 11, for example, it can be set between the throttling module 24 and the second heat exchange module 25, between the first heat exchange module 23 and the throttling module 24, etc.

[0081] In the solution provided in this embodiment, by providing the second delivery pipeline and the third heat exchange module, the heat generated by the converter module is recovered and reused, thereby improving the temperature regulation efficiency of the liquid-cooled heat pump system.

[0082] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0083] In one or more embodiments of the present application, Figure 3 As shown, the liquid cooling heat pump system further includes: an expansion water tank 31, a second delivery pump 32 and a third delivery pipeline 33; The second delivery pump 32 is disposed on a common pipeline section of at least two liquid-cooled heat pump modules 12; The expansion water tank 31 is connected to the common pipeline section via a third delivery pipeline 33 .

[0084] The second delivery pump 32 is used to drive the fluid to flow in the common pipeline section and the third delivery pipeline 33 .

[0085] In the solution provided in this embodiment, the expansion water tank automatically receives and compensates the fluid in the first delivery pipeline based on the pressure of the fluid in the first delivery pipeline, thereby realizing automatic regulation of the pressure of the fluid in the first delivery pipeline and improving the temperature regulation efficiency of the liquid-cooled heat pump system.

[0086] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0087] In one or more embodiments of the present application, Figure 3 As shown, the liquid cooling heat pump system further includes: a first pipeline regulating component 34, a first liquid injection port 35 and a fourth delivery pipeline 36; The first pipeline regulating assembly 34 is disposed on the fourth delivery pipeline 36 ; one end of the fourth delivery pipeline 36 is connected to the first liquid injection port 35 , and the other end is connected to the common pipeline section 33 .

[0088] In this embodiment, the first pipeline regulating component 34 is used to regulate the opening and closing of the fourth delivery pipeline 36, so that the fourth delivery pipeline 36 forms a passage so that the fluid flows smoothly, or the fourth delivery pipeline 36 is disconnected to block the flow of the fluid. The first pipeline regulating component 34 may include but is not limited to a two-way valve, a three-way valve, etc.

[0089] In this embodiment, the first injection port 35 can be connected to the injection device. When the first pipeline regulating component 34 is opened, the fluid in the injection device flows through the first injection port 35, the first pipeline regulating component 34 and the fourth delivery pipeline 36 to inject liquid into the first delivery pipeline.

[0090] In the solution provided in this embodiment, the first liquid injection port, the first pipeline adjustment component and the fourth delivery pipeline are provided to facilitate the separate liquid injection into the first delivery pipeline, which helps to achieve rapid assembly between the liquid-cooled heat pump system and the temperature adjustment object.

[0091] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0092] The following is a specific example to illustrate the liquid cooling heat pump system in some embodiments of the present application. Figure 4 As shown, the liquid cooling heat pump system may include: The liquid-cooled heat pump module 1 and the liquid-cooled heat pump module 2 are two liquid-cooled heat pump modules 12 and a first delivery pipeline 11 , and the two liquid-cooled heat pump modules 12 are connected in parallel.

[0093] In the liquid-cooled heat pump module 1 , the liquid-cooled heat pump module 12 includes a compressor 21 , a four-way valve 22 , a first heat exchanger 23 , an expansion valve 24 , a second heat exchanger 25 , a third heat exchanger 28 , a first delivery pump 27 , a converter 26 and a second delivery pipeline 29 .

[0094] The compressor 21 is arranged between the input end and the second output port of the four-way valve 22, the first heat exchange module 23 is arranged between the first output port of the four-way valve 22 and the third heat exchange module 28, the expansion valve 24 is arranged between the third heat exchange module 28 and the second heat exchange module 25, and the second heat exchange module is also connected to the third output port of the four-way valve 22.

[0095] In the liquid-cooled heat pump module 2, most of the components in the liquid-cooled heat pump module 2 are the same as those in the liquid-cooled heat pump module 1, except that the liquid-cooled heat pump module 2 does not have the first delivery pump 27, the converter 26, and the second delivery pipeline 29. It should be noted that in other specific embodiments, the first delivery pump 27, the converter 26, and the second delivery pipeline 29 may still be provided in the liquid-cooled heat pump module 2.

[0096] In practical applications, at least one of the liquid-cooled heat pump module 1 and the liquid-cooled heat pump module 2 can be used as the target liquid-cooled heat pump module. For example, initially the liquid-cooled heat pump module 1 is working and the liquid-cooled heat pump module 2 is on standby. If the liquid-cooled heat pump module 1 fails during operation and cannot continue to work, in this case, the liquid-cooled heat pump module 2 can be switched to work.

[0097] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0098] According to some embodiments of the present application, Figure 5As shown, a thermal management system is provided, which may include: The fifth delivery pipeline 41, the energy storage plug port 42, the energy storage system 43 and the liquid cooling heat pump system 45 in the above-mentioned embodiment; An energy storage plug port 42 is provided at the end of the fifth delivery pipeline 41, and the fifth delivery pipeline 41 passes through the energy storage system 43, so as to allow the fluid in the fifth delivery pipeline 41 to perform heat exchange with the energy storage system 43; The energy storage plug port 42 is pluggably connected to the liquid cooling heat pump plug port 13 in the liquid cooling heat pump system 45 .

[0099] It should be understood that the energy storage plug interface 42 and the liquid cooling heat pump plug interface 13 are matched one by one. Specifically, for an energy storage system, when there is only one liquid cooling heat pump plug interface 13, that is, when the liquid cooling heat pump plug interface 13 passes through the port of the input pipeline and the port of the output pipeline in the first delivery pipeline at the same time, the energy storage plug interface 42 passes through the port of the input pipeline and the port of the output pipeline in the fifth delivery pipeline 41. And the plug points on the liquid cooling heat pump plug interface 13 and the energy storage plug interface 42 are matched one by one, that is, the plug point on the liquid cooling heat pump plug interface 13 representing the port of the input pipeline in the first delivery pipeline matches the plug point on the energy storage plug interface 42 representing the port of the output pipeline in the fifth delivery pipeline 41, and the plug point on the liquid cooling heat pump plug interface 13 representing the port of the output pipeline in the first delivery pipeline matches the plug point on the energy storage plug interface 42 representing the port of the input pipeline in the fifth delivery pipeline 41.

[0100] In this embodiment, the heat exchange between the fluid in the fifth delivery pipeline 41 and the energy storage system 43 can be understood as, taking the refrigeration scenario as an example, the heat of the energy storage system 43 is transferred to the fluid in the fifth delivery pipeline 41, the fluid in the fifth delivery pipeline 41 is heated up, and the energy storage system 43 is cooled down.

[0101] In the solution provided by this embodiment, the energy storage system and the liquid-cooled heat pump system can be quickly assembled through the pluggable connection between the energy storage plug interface and the liquid-cooled heat pump plug interface, so that the liquid-cooled heat pump system can adjust the temperature of the energy storage system. In addition, the parallel connection relationship of at least two liquid-cooled heat pump modules in the liquid-cooled heat pump system can improve the reliability of the liquid-cooled heat pump system in adjusting the temperature of the energy storage system.

[0102] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0103] In one or more embodiments of the present application, Figure 5As shown, the fifth delivery pipeline 41 includes a first branch pipe 411 and a second branch pipe 412, the first branch pipe 411 is connected to the second branch pipe 412, an energy storage plug-in port 42 is provided at the end of the first branch pipe 411, and the second branch pipe 412 passes through the energy storage system 43; The thermal management system also includes: A second pipeline regulating assembly 46, a second liquid injection port 47 and a sixth delivery pipeline 48; The second pipeline regulating assembly 46 is disposed on the sixth delivery pipeline 48 ; one end of the sixth delivery pipeline 48 is connected to the second liquid injection port 47 , and the other end is connected to the first branch pipe 411 .

[0104] In this embodiment, the second pipeline regulating component 46 is used to regulate the opening and closing of the sixth delivery pipeline 48, so that the sixth delivery pipeline 48 forms a passage so that the fluid flows smoothly, or the sixth delivery pipeline 48 is disconnected to block the flow of the fluid. The second pipeline regulating component 46 may include but is not limited to a two-way valve, a three-way valve, etc.

[0105] In this embodiment, the second injection port 47 can be connected to the injection equipment. When the second pipeline regulating assembly 46 is opened, the fluid in the injection equipment flows through the second injection port 47, the second pipeline regulating assembly 46 and the sixth delivery pipeline 48 to inject liquid into the first branch pipe 411.

[0106] In the solution provided in this embodiment, the second liquid injection port, the second pipeline regulating assembly and the sixth delivery pipeline are provided to facilitate the injection of liquid into the sixth delivery pipeline, which helps to improve the assembly efficiency between the liquid-cooled heat pump system and the energy storage system.

[0107] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0108] In one or more embodiments of the present application, Figure 5 As shown, the thermal management system further includes: a third delivery pump 49 disposed on the first branch pipe 411 .

[0109] The third delivery pump 49 is used to drive the fluid to flow in the fifth delivery pipeline 41 , and the flow rate of the fluid in the fifth delivery pipeline 41 can be changed by controlling and adjusting the frequency of the third delivery pump 49 .

[0110] In the solution provided in this embodiment, the third delivery pump can change the flow rate of the fluid in the fifth delivery pipeline, which helps to improve the thermal management efficiency of the thermal management system.

[0111] In one or more embodiments of the present application, Figure 5 As shown, the thermal management system further includes: a pressure relief module 4121 disposed on the second branch pipe 412 .

[0112] The pressure relief module 4121 is used to adjust the pressure in the fifth delivery pipeline 41 when the pressure of the fluid flowing through the fifth delivery pipeline 41 of the energy storage system is greater than the pressure threshold. The pressure relief module 4121 includes but is not limited to a pressure relief valve, a pressure switch, and the like.

[0113] It should be understood that Figure 5 As shown, the second branch pipe 412 includes a branch pipe input pipeline and a branch pipe output pipeline, and the pressure relief module 4121 can be arranged on the branch pipe input pipeline or on the branch pipe output pipeline.

[0114] It should be understood that Figure 5 For an energy storage system, although only a first branch pipe 411 is drawn, since the first branch pipe 411 and the second branch pipe 412 are two connectable parts separated from the fifth transmission pipeline, the first branch pipe 411 should also include two branch pipelines.

[0115] In the solution provided in this embodiment, by providing a pressure relief module, the damage to the pipeline caused by the high pressure of the fluid in the fifth delivery pipeline can be reduced.

[0116] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0117] In one or more embodiments of the present application, Figure 5 As shown, at least one of a pressure collection module 4111 , a flow collection module 4112 and a temperature collection module 4113 is disposed on the first branch pipe 411 .

[0118] The pressure data collected by the pressure acquisition module 4111 represents the pressure of the fluid flowing through the first branch pipe 411 , the flow acquisition module 4112 represents the flow of the fluid flowing through the first branch pipe 411 , and the temperature acquisition module 4113 represents the temperature of the fluid flowing through the first branch pipe 411 .

[0119] In the solution provided in this embodiment, the data collected by the pressure acquisition module, the flow acquisition module and / or the temperature acquisition module are helpful for flexible control of the thermal management system.

[0120] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0121] The following is a specific example to illustrate the thermal management system in some embodiments of the present application. Figure 6 As shown, the thermal management system may include: Liquid-cooled heat pump system 60, energy storage plug port 42, fifth delivery pipeline 41, first branch pipe 411, second branch pipe 412, pressure acquisition module 4111, flow acquisition module 4112, temperature acquisition module 4113, second liquid injection port 47, second pipeline regulating assembly 46, sixth delivery pipeline 48, third delivery pump 49 and pressure relief switch 4121.

[0122] Among them, the part about the liquid cooling heat pump system 60 can refer to the aforementioned embodiment, and will not be described in detail here to avoid redundancy.

[0123] The fifth delivery pipeline includes an input pipeline and an output pipeline, the input pipeline includes a first branch pipe 411 and a second branch pipe 412 connected to each other, and the output pipeline includes a first branch pipe 411 and a second branch pipe 412 connected to each other. A pressure acquisition module 4111, a flow acquisition module 4112, a temperature acquisition module 4113 and a third delivery pump 49 are arranged on the first branch pipe 411 of the input pipeline or the first branch pipe 411 of the output pipeline. At the same time, the first branch pipe 411 is also connected to the sixth delivery pipeline 48, the sixth delivery pipeline 48 is provided with a second pipeline regulating component 46, and the sixth delivery pipeline 48 is also connected to the second injection port 47. A pressure relief switch 4121 is arranged on the second branch pipe 412 of the input pipeline or the output pipeline.

[0124] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0125] According to some embodiments of the present application, there is provided an electrical device, such as Figure 7 As shown, the electrical equipment may include: The control module 71 and the thermal management system 72 in the aforementioned embodiment.

[0126] The control module is connected to the controllable components in the thermal management system 72. The controllable components may include but are not limited to a pressure acquisition module 4111, a flow acquisition module 4112, a temperature acquisition module 4113, a liquid cooling heat pump module 12, a compressor 21, a second delivery pump 32, a third delivery pump 49, etc. The connection between the control module and the controllable components may be a wireless or wired connection.

[0127] The electrical equipment may include but is not limited to electric vehicles, ships or aircraft, etc. Taking electric vehicles as an example, the control module may include but is not limited to a vehicle controller, a domain controller, etc.

[0128] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0129] According to some embodiments of the present application, a thermal management method is provided, such as Figure 8 As shown, the method may include the following steps: Step 801: When the temperature adjustment conditions of the energy storage system are met, a target liquid-cooled heat pump module is determined from at least two liquid-cooled heat pump modules based on the operating parameters of the thermal management system; Step 802: Control the first delivery pipeline and the fifth delivery pipeline to form a first delivery loop between the target liquid-cooled heat pump module and the energy storage system, and drive the fluid to flow in the first delivery loop.

[0130] In this embodiment, the temperature regulation of the energy storage system is satisfied, including but not limited to, the temperature of the energy storage system is higher than the appropriate temperature range and / or lower than the appropriate temperature range. When the temperature of the energy storage system is higher than the appropriate temperature range, it indicates that the energy storage system needs to be cooled down. In this case, the liquid-cooled heat pump system cools to reduce the temperature of the energy storage system. When the temperature of the energy storage system is lower than the appropriate temperature range, it indicates that the energy storage system needs to be heated up. In this case, the liquid-cooled heat pump system heats to increase the temperature of the energy storage system.

[0131] In some scenarios, the temperature of the energy storage system is higher than the appropriate temperature range. In addition to indicating that the energy storage system needs to be cooled, it can also indicate that the cooling degree of the liquid-cooled heat pump system is insufficient. In this case, it is necessary to select some liquid-cooled heat pump modules from the spare liquid-cooled heat pump modules as new target liquid-cooled heat pump modules and participate in the cooling process.

[0132] In some scenarios, the temperature of the energy storage system is lower than the appropriate temperature range. In addition to indicating that the energy storage system needs to be heated up, it can also indicate that the liquid-cooled heat pump system is cooling too much. In this case, some working liquid-cooled heat pump modules need to be restored to standby liquid-cooled heat pump modules to reduce the degree to which the liquid-cooled heat pump system cools the energy storage system.

[0133] In this embodiment, the fluid circulates in the first delivery loop, and when flowing through the target liquid-cooled heat pump module and the energy storage system, the fluid exchanges heat with the target liquid-cooled heat pump module and the energy storage system. Taking the refrigeration scenario as an example, the heat of the energy storage system is transferred to the fluid, causing the temperature of the fluid to rise and the temperature of the energy storage system to drop. In this way, when the higher temperature fluid flows through the target liquid-cooled heat pump module, the fluid exchanges heat with the target liquid-cooled heat pump module, and the heat in the fluid is transferred to the target liquid-cooled heat pump module, causing the temperature of the fluid to drop, and the temperature of the refrigerant circulating in the target liquid-cooled heat pump module to rise. The fluid after the temperature drops flows back to the energy storage system for heat exchange, and is recycled in this way to achieve cooling of the energy storage system.

[0134] In the solution provided in this embodiment, at least two liquid-cooled heat pump modules connected in parallel can be used as backup for each other. Therefore, when determining the target liquid-cooled heat pump module based on the operating condition parameters, the liquid-cooled heat pump module can be flexibly determined, thereby improving the reliability of temperature regulation of the energy storage system. The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0135] In one or more embodiments of the present application, based on the operating parameters of the thermal management system, determining a target liquid cooling heat pump module from at least two liquid cooling heat pump modules includes: Based on the operating parameters, determine the target number of liquid-cooled heat pump modules required to regulate the temperature of the energy storage system; In the case where the target number is greater than the current number of working liquid-cooled heat pump modules in the liquid-cooled heat pump system, selecting an increased number of liquid-cooled heat pump modules from the spare liquid-cooled heat pump modules of the at least two liquid-cooled heat pump modules, and determining the remaining number of liquid-cooled heat pump modules and the working liquid-cooled heat pump modules as target liquid-cooled heat pump modules, and the increased number is the difference between the target number and the current number; When the target number is less than the current number, the liquid-cooled heat pump modules in operation minus the reduced number of liquid-cooled heat pump modules are determined as target liquid-cooled heat pump modules, and the reduced number is the difference between the current number and the target number.

[0136] In this embodiment, taking the cooling scenario as an example, if the target number is greater than the current number of working liquid-cooled heat pump modules in the liquid-cooled heat pump system, it indicates that the cooling degree of the working liquid-cooled heat pump modules is insufficient. In this case, some of the standby liquid-cooled heat pump modules need to be used to cool the energy storage system. In practical applications, the target number may be greater than the current number of working liquid-cooled heat pump modules in the liquid-cooled heat pump system due to reasons including but not limited to failure of the working liquid-cooled heat pump modules and an increase in the number of energy storage systems that need to be cooled.

[0137] Similarly, if the target number is less than the current number of working liquid-cooled heat pump modules in the liquid-cooled heat pump system, it indicates that the degree of cooling of the working liquid-cooled heat pump modules is too high, causing the temperature of the energy storage system to be lower than the appropriate temperature range. In this case, it is necessary to reduce some working liquid-cooled heat pump modules.

[0138] In the solution provided in this embodiment, the target number is compared with the current number of working liquid-cooled heat pump modules, and then the number of working liquid-cooled heat pump modules is adjusted based on the standby liquid-cooled heat pump modules, thereby improving the temperature regulation efficiency and the reliability of temperature regulation, thereby increasing the service life of the energy storage system.

[0139] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0140] In one or more embodiments of the present application, the operating condition parameters include at least one of the following: The temperature of the energy storage system; The pressure of the fluid in the thermal management system; The flow rate of a fluid in a thermal management system.

[0141] When the operating parameters include temperature, pressure or flow rate, taking the cooling scenario as an example, the mapping relationship between these three parameters and the cooling capacity of the liquid-cooled heat pump system can be pre-set. Then, when a certain parameter is collected, the corresponding mapping relationship can be queried using the collected parameter to obtain the corresponding cooling capacity, and then the target quantity is determined based on the obtained cooling capacity. The heating scenario is similar to the above cooling scenario and will not be described in detail here.

[0142] When the operating parameters include at least two or three parameters among temperature, pressure and flow rate, taking the operating parameters including temperature, pressure and flow rate as an example, these three parameters can be compared with the historically collected parameters to determine the parameters with greater changes, and the target liquid-cooled heat pump module can be determined based on the parameters with greater changes.

[0143] In the solution provided in this embodiment, the target liquid-cooled heat pump module is determined by the temperature, pressure and flow rate in the operating condition parameters, which conforms to the actual operating conditions, and the number of target liquid-cooled heat pump modules determined by these parameters is also relatively accurate, which helps to improve the service life of the energy storage system.

[0144] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0145] In one or more embodiments of the present application, the thermal management system further includes a flow conversion module, a first delivery pump, a third heat exchange module, and a second delivery pipeline; The method also includes: In the process of forming the first delivery loop, the second delivery pipeline is controlled to form the second delivery loop between the flow conversion module, the first delivery pump and the third heat exchange module.

[0146] In the solution provided in this embodiment, the heat generated by the converter module can be recovered and reused through the second transmission loop, thereby improving the efficiency of thermal management.

[0147] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0148] In one or more embodiments of the present application, the thermal management system further includes a pressure relief module; and the method further includes: When the driving fluid flows in the first transmission loop, the pressure relief module is controlled to release pressure based on detecting that the pressure of the fluid flowing through the pipeline section at the energy storage system reaches a preset threshold.

[0149] It should be understood that the preset threshold is a pressure value that will damage the transmission pipeline of the energy storage system.

[0150] In the solution provided in this embodiment, when the fluid pressure reaches a preset threshold, the pressure relief module is controlled to release pressure, which can reduce damage to the delivery pipeline.

[0151] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0152] In one or more embodiments of the present application, the thermal management system further includes a first delivery pump disposed in the first delivery pipeline, and a second delivery pump disposed in the second delivery pipeline; the method further includes: When the driving fluid flows in the first delivery circuit, the operating parameters of at least one of the second delivery pump and the third delivery pump are adjusted based on the flow rate of the fluid in the first delivery circuit.

[0153] In this embodiment, the operating parameters include but are not limited to flow rate, efficiency, head and other parameters.

[0154] In this embodiment, one or more of the second delivery pump and the third delivery pump can be adjusted based on the set flow threshold. For example, when the detected flow rate is much smaller than the flow threshold, the operating parameters of the second delivery pump and the third delivery pump are adjusted at the same time; when the detected flow rate is not much different from the flow threshold, a delivery pump can be randomly selected from the second delivery pump and the third delivery pump, and the operating parameters of the randomly selected delivery pump can be adjusted.

[0155] In the solution provided in this embodiment, based on the detected flow rate, the operating parameters of at least one of the second delivery pump and the third delivery pump are adjusted, which helps to improve the thermal management efficiency.

[0156] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0157] According to some embodiments of the present application, a thermal management device is provided, such as Fig. 9 As shown, the device is applied to the thermal management system in the above-mentioned embodiment, and the device may include: A determination module 901 is used to determine a target liquid-cooled heat pump module from at least two liquid-cooled heat pump modules based on operating parameters of the thermal management system when the temperature adjustment conditions of the energy storage system are met; The formation module 902 is used to control the first delivery pipeline and the fifth delivery pipeline to form a first delivery loop between the target liquid-cooled heat pump module and the energy storage system, and drive the fluid to flow in the first delivery loop.

[0158] Optionally, the determination module 901 is used to: Based on the operating parameters, determine the target number of liquid-cooled heat pump modules required to regulate the temperature of the energy storage system; In the case where the target number is greater than the current number of working liquid-cooled heat pump modules in the liquid-cooled heat pump system, selecting an increased number of liquid-cooled heat pump modules from the spare liquid-cooled heat pump modules of the at least two liquid-cooled heat pump modules, and determining the remaining number of liquid-cooled heat pump modules and the working liquid-cooled heat pump modules as target liquid-cooled heat pump modules, and the increased number is the difference between the target number and the current number; When the target number is less than the current number, the liquid-cooled heat pump modules in operation minus the reduced number of liquid-cooled heat pump modules are determined as target liquid-cooled heat pump modules, and the reduced number is the difference between the current number and the target number.

[0159] Optionally, the operating condition parameters include at least one of the following: The temperature of the energy storage system; The pressure of the fluid in the thermal management system; The flow rate of a fluid in a thermal management system.

[0160] Optionally, the thermal management system further includes a flow conversion module, a first delivery pump, a third heat exchange module and a second delivery pipeline; The device is also used to: In the process of forming the first delivery loop, the second delivery pipeline is controlled to form the second delivery loop between the flow conversion module, the first delivery pump and the third heat exchange module.

[0161] Optionally, the thermal management system further includes a pressure relief module; the device is also used for: When the driving fluid flows in the first transmission loop, the pressure relief module is controlled to release pressure based on detecting that the pressure of the fluid flowing through the pipeline section at the energy storage system reaches a preset threshold.

[0162] Optionally, the thermal management system further includes a first delivery pump disposed in the first delivery pipeline, and a second delivery pump disposed in the second delivery pipeline; the device is also used for: When the driving fluid flows in the first delivery circuit, the operating parameters of at least one of the second delivery pump and the third delivery pump are adjusted based on the flow rate of the fluid in the first delivery circuit.

[0163] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0164] According to some embodiments of the present application, an electronic device is provided, the electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the data storage method based on the coating process of any of the above embodiments. The electronic device includes but is not limited to a vehicle controller, a domain controller, etc.

[0165] like Fig.10 As shown, the electronic device 100 may include: a processor 1000, a memory 1001, a bus 1002 and a communication interface 1003, and the processor 1000, the communication interface 1003 and the memory 1001 are connected via the bus 1002; the memory 1001 stores a computer program that can be run on the processor 1000, and when the processor 1000 runs the computer program, it executes the method provided in any of the aforementioned embodiments of the present application.

[0166] The memory 1001 may include a high-speed random access memory (RAM), and may also include a non-volatile memory, such as at least one disk storage. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 1003 (which may be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. may be used.

[0167] The bus 1002 may be an ISA bus, a PCI bus, or an EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. The memory 1001 is used to store programs, and the processor 1000 executes the program after receiving an execution instruction. The method disclosed in any implementation of the aforementioned embodiment of the present application may be applied to the processor 1000, or implemented by the processor 1000.

[0168] The processor 1000 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 1000. The above processor 1000 may be a general-purpose processor, which may include a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a readily available programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in the embodiments of the present application can be directly embodied as a hardware decoding processor to be executed, or a combination of hardware and software modules in the decoding processor to be executed. The software module may be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 1001, and the processor 1000 reads the information in the memory 1001 and completes the steps of the above method in combination with its hardware.

[0169] The electronic device provided in the embodiment of the present application and the method provided in the embodiment of the present application are based on the same inventive concept and have the same beneficial effects as the method adopted, operated or implemented by them.

[0170] Another embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, the program being executed by a processor to implement the method of any of the above-mentioned embodiments.

[0171] refer to Fig.11 As shown, the computer-readable storage medium shown is a CD 20 on which a computer program (ie, a program product) is stored. When the computer program is run by a processor, the method provided by any of the aforementioned embodiments will be executed.

[0172] It should be noted that examples of computer-readable storage media may also include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical or magnetic storage media, which are not listed here one by one.

[0173] Another embodiment of the present application provides a computer program product, including a computer program, which is executed by a processor to implement the method of any of the above embodiments.

[0174] The computer-readable storage medium and computer program product provided in the above-mentioned embodiments of the present application are based on the same inventive concept as the method provided in the embodiments of the present application, and have the same beneficial effects as the method adopted, run or implemented by the application program stored therein.

[0175] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0176] It should be noted that: The term "module" is not intended to be limited to a specific physical form. Depending on the specific application, a module can be implemented as hardware, firmware, software, and / or a combination thereof. In addition, different modules can share common components or even be implemented by the same components. There may or may not be clear boundaries between different modules.

[0177] The algorithm and display provided herein are not inherently related to any specific computer, virtual device or other equipment. Various general devices can also be used together with examples based on this. According to the above description, it is obvious to construct the structure required for this type of device. In addition, the application is not directed to any specific programming language yet. It should be understood that various programming languages ​​can be utilized to realize the content of the application described herein, and the description made to specific languages ​​above is for the purpose of disclosing the best mode of implementation of the application.

[0178] It should be understood that, although the steps in the flowchart of the accompanying drawings are displayed in sequence as indicated by the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least a part of the steps in the flowchart of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a part of the sub-steps or stages of other steps.

[0179] The above embodiments only express the implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A liquid cooling heat pump system, characterized in that: include: A first delivery pipeline, at least two liquid-cooling heat pump modules connected in parallel, and a liquid-cooling heat pump plug interface; The first delivery pipeline passes through the at least two liquid-cooled heat pump modules, and is used to allow the fluid in the first delivery pipeline to perform heat exchange with a target liquid-cooled heat pump module, and the target liquid-cooled heat pump module is a liquid-cooled heat pump module in working state among the at least two liquid-cooled heat pump modules; The liquid cooling heat pump plug port is arranged at the end of the first delivery pipeline.

2. The liquid cooling heat pump system according to claim 1, characterized in that: The liquid-cooled heat pump module comprises: Compressor, reversing valve, first heat exchange module, throttling module, second heat exchange module; The compressor is arranged between the input end of the reversing valve and the second output end of the reversing valve; The first heat exchange module is arranged between the first output end of the reversing valve and the throttling module; The second heat exchange module is arranged between the throttling module and the third output end of the reversing valve.

3. The liquid cooling heat pump system according to claim 2, characterized in that: The liquid-cooled heat pump module also includes a flow conversion module, a first delivery pump, a third heat exchange module and a second delivery pipeline; The second delivery pipeline passes through the flow conversion module, the first delivery pump and the third heat exchange module respectively; The first delivery pipeline also passes through the third heat exchange module; The third heat exchange module is used to perform heat exchange between the fluid in the second delivery pipeline and the fluid in the first delivery pipeline.

4. The liquid cooling heat pump system according to claim 1, characterized in that: The liquid-cooled heat pump system further includes: an expansion water tank, a second delivery pump and a third delivery pipeline; The second delivery pump is arranged on a common pipeline section of the at least two liquid-cooled heat pump modules; The expansion water tank is connected to the common pipeline section through the third delivery pipeline.

5. The liquid cooling heat pump system according to claim 4, characterized in that: The liquid cooling heat pump system further comprises: a first pipeline regulating component, a first liquid injection port and a fourth delivery pipeline; The first pipeline regulating component is arranged on the fourth delivery pipeline; one end of the fourth delivery pipeline is connected to the first liquid injection port, and the other end is connected to the common pipeline section.

6. A thermal management system, characterized in that: include: A fifth delivery pipeline, an energy storage plug port, an energy storage system, and a liquid-cooled heat pump system as described in any one of claims 1 to 5; The end of the fifth delivery pipeline is provided with the energy storage plug port, and the fifth delivery pipeline passes through the energy storage system, so as to enable the fluid in the fifth delivery pipeline to perform heat exchange with the energy storage system; The energy storage plug interface is pluggably connected to the liquid cooling heat pump plug interface in the liquid cooling heat pump system.

7. The thermal management system according to claim 6, characterized in that: The fifth delivery pipeline includes a first branch pipe and a second branch pipe, the first branch pipe is connected to the second branch pipe, the end of the first branch pipe is provided with the energy storage plug interface, and the second branch pipe passes through the energy storage system; The thermal management system further comprises: a second pipeline regulating assembly, a second liquid injection port and a sixth delivery pipeline; The second pipeline regulating assembly is arranged on the sixth delivery pipeline; one end of the sixth delivery pipeline is connected to the second liquid injection port, and the other end is connected to the first branch pipe.

8. The thermal management system according to claim 7, characterized in that: The thermal management system further includes: a third delivery pump disposed on the first branch pipe.

9. The thermal management system according to claim 7 or 8, characterized in that: The thermal management system further includes: a pressure relief module arranged on the second branch pipe.

10. The thermal management system according to claim 7 or 8, characterized in that: The first branch pipe is provided with at least one of a pressure acquisition module, a flow acquisition module and a temperature acquisition module.

11. An electrical device, characterized in that: It comprises a control module and the thermal management system according to any one of claims 6 to 10.

12. A thermal management method, characterized in that: Applied to the thermal management system according to any one of claims 6 to 10, the method comprising: Under the condition that the temperature adjustment condition of the energy storage system is met, the target liquid-cooled heat pump module is determined from the at least two liquid-cooled heat pump modules based on the operating parameters of the thermal management system; The first delivery pipeline and the fifth delivery pipeline are controlled to form a first delivery loop between the target liquid-cooled heat pump module and the energy storage system, and the fluid is driven to flow in the first delivery loop.

13. The method according to claim 12, characterized in that Determining the target liquid-cooled heat pump module from the at least two liquid-cooled heat pump modules based on the operating parameters of the thermal management system includes: Based on the operating condition parameters, determining a target number of liquid-cooled heat pump modules required for temperature regulation of the energy storage system; In the case where the target number is greater than the current number of working liquid-cooled heat pump modules in the liquid-cooled heat pump system, an increased number of liquid-cooled heat pump modules are selected from the spare liquid-cooled heat pump modules of the at least two liquid-cooled heat pump modules, and the remaining number of liquid-cooled heat pump modules and the working liquid-cooled heat pump modules are determined to be the target liquid-cooled heat pump modules, and the increased number is the difference between the target number and the current number; When the target number is less than the current number, the liquid-cooled heat pump module obtained by removing the reduced number of liquid-cooled heat pump modules from the working liquid-cooled heat pump modules is determined to be the target liquid-cooled heat pump module, and the reduced number is the difference between the current number and the target number.

14. The method according to claim 12 or 13, characterized in that The operating condition parameters include at least one of the following: The temperature of the energy storage system; the pressure of the fluid in the thermal management system; The flow rate of the fluid in the thermal management system.

15. The method according to claim 12 or 13, characterized in that The thermal management system further includes a flow conversion module, a first delivery pump, a third heat exchange module and a second delivery pipeline; The method further comprises: In the process of forming the first delivery loop, the second delivery pipeline is controlled to form a second delivery loop between the flow conversion module, the first delivery pump and the third heat exchange module.

16. The method according to claim 12 or 13, characterized in that The thermal management system further includes a pressure relief module; and the method further includes: During the process of driving the fluid to flow in the first transmission circuit, the pressure relief module is controlled to release pressure based on detecting that the pressure of the fluid flowing through the pipeline section at the energy storage system reaches a preset threshold.

17. The method according to claim 12 or 13, characterized in that The thermal management system further includes a first delivery pump disposed in the first delivery pipeline, and a second delivery pump disposed in the second delivery pipeline; the method further includes: When the driving fluid flows in the first delivery circuit, the operating parameters of at least one of the second delivery pump and the third delivery pump are adjusted based on the flow rate of the fluid in the first delivery circuit.

18. A thermal management device, characterized in that: Applicable to the thermal management system according to any one of claims 6 to 10, the device comprising: A determination module, configured to determine the target liquid-cooled heat pump module from the at least two liquid-cooled heat pump modules based on the operating parameters of the thermal management system when the temperature adjustment conditions of the energy storage system are met; A forming module is used to control the first delivery pipeline and the fifth delivery pipeline to form a first delivery loop between the target liquid-cooled heat pump module and the energy storage system, and drive the fluid to flow in the first delivery loop.

19. An electronic device, characterized in that: include: Processor and memory; The memory is used to store computer programs; The processor is used to execute the program stored in the memory to implement the thermal management method described in any one of claims 12-17.

20. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the thermal management method according to any one of claims 12 to 17 is implemented.

Images