Thermal management device and method of energy cabinet, energy cabinet and storage medium

Abstract

The invention discloses a thermal management device and method of an energy cabinet, the energy cabinet and a storage medium. The heat management device comprises an out-cabinet condenser which is arranged in parallel with an in-cabinet condenser and is arranged outside the energy cabinet; and the dehumidification evaporator is arranged in parallel with the battery cell cooling heat exchanger. The condenser outside the cabinet is arranged outside the energy cabinet, the dehumidification evaporator is arranged inside the cabinet body, dehumidification is carried out through the dehumidification evaporator when condensation occurs, cooling of the battery cells is achieved when the temperature of the battery cells is too high, and cooling in the cabinet is achieved when the environment temperature in the cabinet is too high. Cooperative control over battery cell cooling and internal environment temperature and humidity is achieved, condensation is avoided, energy consumption loss of the heat management device is reduced, and the efficiency of the energy cabinet is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy cabinets, and in particular to a thermal management device and method for an energy cabinet, an energy cabinet, and a storage medium. Background Art

[0002] Accelerate the optimization of building energy consumption structure, improve the electrification level of building terminals, and build "photovoltaic, energy storage, direct current and flexible" buildings that integrate photovoltaic power generation, energy storage, direct current distribution and flexible electricity use.

[0003] "PV, storage, direct and flexible" is a supporting technology and an important way for the power distribution system in the building field to achieve the "dual carbon" goal. The key is to develop flexible electricity. The future building power distribution system will no longer be a simple electricity energy consumer. It will be deeply integrated with the urban power grid, and will cooperate with electric vehicles, distributed power generation, etc., interact with sources and loads, and adapt to the high proportion of renewable energy penetration in the future. A new type of community energy cabinet that integrates multiple energy sources such as energy storage, photovoltaics, and inverters provides security for the community's energy supply.

[0004] The energy cabinet integrates energy storage cells, DC / DC of energy conversion controller and other precision electronic control devices. At present, the thermal management unit of the energy cabinet is mainly for cooling the cells, lacking the coordinated control of the temperature and humidity inside the energy cabinet, which is prone to condensation and the energy consumption of the thermal management unit cannot be controlled.

[0005] With regard to the problem that the thermal management solution of the energy cabinet in the prior art cannot achieve coordinated control of battery cell cooling and temperature and humidity, no effective solution has been proposed so far. Summary of the invention

[0006] The embodiments of the present invention provide a thermal management device and method for an energy cabinet, an energy cabinet, and a storage medium to solve the problem that the thermal management solution of the energy cabinet in the prior art cannot achieve coordinated control of battery cell cooling and temperature and humidity.

[0007] In order to solve the above technical problems, the present invention provides a thermal management device for an energy cabinet, wherein the thermal management device comprises: a compressor, a condenser in the cabinet, and a battery core cooling heat exchanger connected in sequence; and further comprises:

[0008] An external condenser is arranged in parallel with the internal condenser and is arranged outside the energy cabinet;

[0009] The first end of the parallel pipeline where the external condenser is located is located on the pipeline between the compressor and the internal condenser, and the second end is located on the pipeline between the internal condenser and the battery core cooling heat exchanger; a first valve is provided on the pipeline between the first end and the external condenser; a second valve is provided on the pipeline between the first end and the internal condenser;

[0010] A dehumidifying evaporator is arranged in parallel with the battery core cooling heat exchanger;

[0011] The first end of the parallel pipeline where the dehumidification evaporator is located is located on the pipeline between the condenser in the cabinet and the battery cell cooling heat exchanger, and the second end is located on the pipeline between the battery cell cooling heat exchanger and the compressor; a third valve is arranged on the pipeline between the first end and the battery cell cooling heat exchanger; and a fourth valve is arranged on the pipeline between the first end and the dehumidification evaporator.

[0012] Furthermore, the thermal management device further comprises:

[0013] A battery cell BMS is arranged at the battery cell of the energy cabinet and is used to detect the temperature of the battery cell;

[0014] A temperature sensor is arranged inside the energy cabinet and is used to detect the temperature inside the energy cabinet;

[0015] The humidity sensor is arranged inside the energy cabinet and is used to detect the humidity inside the energy cabinet.

[0016] Furthermore, the thermal management device also includes: a controller, which is used to control the actions of the first valve, the second valve, the third valve, and the fourth valve according to the temperature inside the cabinet, the humidity inside the cabinet, and the temperature of the battery cell.

[0017] The present invention also provides an energy cabinet, wherein the energy cabinet comprises the thermal management device of the energy cabinet mentioned above.

[0018] The present invention also provides a thermal management control method for an energy cabinet, which is applied to the thermal management device of the above-mentioned energy cabinet, wherein the method includes: detecting the temperature inside the energy cabinet, the humidity inside the cabinet and the battery cell temperature; controlling the actions of the first valve, the second valve, the third valve and the fourth valve according to the temperature inside the cabinet, the humidity inside the cabinet and the battery cell temperature.

[0019] Furthermore, the internal temperature, internal humidity and battery cell temperature of the energy cabinet are detected, including: detecting the internal temperature of the cabinet by a temperature sensor; detecting the internal humidity of the cabinet by a humidity sensor; and detecting the battery cell temperature by a battery cell BMS.

[0020] Further, according to the temperature in the cabinet, the humidity in the cabinet and the temperature of the battery cell, the actions of the first valve, the second valve, the third valve and the fourth valve are controlled, including:

[0021] When the temperature in the cabinet, the humidity in the cabinet and the battery cell temperature meet the preset condensation conditions, the opening of the first valve is reduced, and the openings of the second valve and the fourth valve are increased to enter the dehumidification state.

[0022] Furthermore, the temperature inside the cabinet, the humidity inside the cabinet and the battery cell temperature meet the preset condensation conditions, including:

[0023] The humidity in the cabinet exceeds a preset humidity value and shows an increasing trend; and, the temperature in the cabinet is lower than a preset temperature value and shows a decreasing trend; and / or, the battery cell temperature is lower than the temperature in the cabinet.

[0024] Furthermore, after entering the dehumidification state, the method also includes: continuing to detect the temperature inside the cabinet, the humidity inside the cabinet and the battery cell temperature, and if the temperature inside the cabinet, the humidity inside the cabinet and the battery cell temperature no longer meet the preset condensation conditions, exiting the dehumidification state.

[0025] Further, according to the temperature in the cabinet, the humidity in the cabinet and the temperature of the battery cell, the actions of the first valve, the second valve, the third valve and the fourth valve are controlled, including:

[0026] When the battery cell temperature is ≥ the preset safety temperature, the opening of the third valve is increased to enter the battery cell cooling state.

[0027] Furthermore, after increasing the opening of the third valve and entering the battery cell cooling state, the method further includes: continuing to detect the battery cell temperature, and after the battery cell temperature is lower than a preset safety temperature, exiting the battery cell cooling state and decreasing the opening of the third valve.

[0028] Furthermore, according to the temperature inside the cabinet, the humidity inside the cabinet and the battery cell temperature, the actions of the first valve, the second valve, the third valve and the fourth valve are controlled, including: when the temperature inside the cabinet is ≥ the preset ambient temperature, the second valve is adjusted down, the first valve and the fourth valve are adjusted up, and the cabinet enters a cooling state.

[0029] Furthermore, after entering the cabinet cooling state, the method further includes: continuing to detect the cabinet temperature, and if the cabinet temperature is lower than the preset ambient temperature, exiting the cabinet cooling state.

[0030] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the program implements the above method when executed by a processor.

[0031] The present invention also provides an electronic device, comprising:

[0032] one or more processors;

[0033] The storage device is used to store one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors implement the above method.

[0034] By applying the technical solution of the present invention, an external condenser is arranged outside the energy cabinet, and a dehumidification evaporator is arranged inside the cabinet. When condensation occurs, dehumidification is performed by the dehumidification evaporator, and the battery core is cooled when the battery core temperature is too high, and the cabinet is cooled when the ambient temperature inside the cabinet is too high. The coordinated control of battery core cooling, internal ambient temperature, and humidity is achieved, condensation is avoided, the energy consumption loss of the thermal management device is reduced, and the efficiency of the energy cabinet is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic structural diagram of a thermal management device for an energy cabinet according to an embodiment of the present invention;

[0036] Figure 2 is a flow chart of a thermal management control method for an energy cabinet according to an embodiment of the present invention;

[0037] Figure 3 It is a logic flow chart of the thermal management control solution of the energy cabinet according to an embodiment of the present invention. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0040] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can 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.

[0041] It should be understood that although the terms first, second, third, etc. may be used to describe valves in the embodiments of the present invention, the valves should not be limited to these terms. These terms are only used to distinguish the valves. For example, without departing from the scope of the embodiments of the present invention, the first valve may also be referred to as the second valve, and similarly, the second valve may also be referred to as the first valve.

[0042] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0043] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0044] The optional embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0045] Example 1

[0046] Figure 1 is a schematic diagram of the structure of a thermal management device for an energy cabinet according to an embodiment of the present invention. Figure 1 As shown, the thermal management device includes: a compressor, a cabinet condenser, and a battery core cooling heat exchanger connected in sequence; and also includes:

[0047] The external condenser is connected in parallel with the internal condenser and is arranged outside the energy cabinet;

[0048] The first end of the parallel pipeline where the external condenser is located is located on the pipeline between the compressor and the internal condenser, and the second end is located on the pipeline between the internal condenser and the battery core cooling heat exchanger; a first valve (K1) is provided on the pipeline between the first end and the external condenser; and a second valve (K2) is provided on the pipeline between the first end and the internal condenser;

[0049] A dehumidifying evaporator is arranged in parallel with the battery cell cooling heat exchanger;

[0050] The first end of the parallel pipeline where the dehumidification evaporator is located is located on the pipeline between the cabinet condenser and the battery cell cooling heat exchanger, and the second end is located on the pipeline between the battery cell cooling heat exchanger and the compressor; a third valve (K3) is arranged on the pipeline between the first end and the battery cell cooling heat exchanger; and a fourth valve (K4) is arranged on the pipeline between the first end and the dehumidification evaporator.

[0051] Considering the need to observe the temperature of the battery cells in the energy cabinet at any time and not to be too high, the thermal management device is provided with a battery cell BMS, which is arranged at the battery cells of the energy cabinet to detect the battery cell temperature. The battery cell cooling heat exchanger is also arranged at the battery cell to achieve cooling of the battery cell. Considering the coordinated control of temperature and humidity in the energy cabinet, the thermal management device also includes: a temperature sensor, which is arranged inside the energy cabinet, for detecting the temperature inside the energy cabinet; a humidity sensor, which is arranged inside the energy cabinet, for detecting the humidity inside the energy cabinet. The controller is used to control the actions of the first valve, the second valve, the third valve, and the fourth valve according to the temperature inside the cabinet, the humidity inside the cabinet, and the battery cell temperature.

[0052] In this embodiment, an external condenser is arranged outside the energy cabinet, and a dehumidification evaporator is arranged inside the cabinet. When condensation occurs, dehumidification is performed through the dehumidification evaporator, and the battery core temperature is cooled when the battery core temperature is too high, and the cabinet temperature is cooled when the ambient temperature inside the cabinet is too high. The coordinated control of battery core cooling, internal ambient temperature, and humidity is achieved to avoid condensation, reduce energy consumption loss of the thermal management device, improve efficiency, and enhance overall sealing.

[0053] This embodiment also provides an energy cabinet, wherein the energy cabinet includes the thermal management device of the energy cabinet introduced above.

[0054] Example 2

[0055] According to an embodiment of the present invention, an embodiment of a thermal management control method for an energy cabinet is provided. The thermal management control scheme is applied to the thermal management device of the energy cabinet introduced above. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0056] Figure 2 is a flow chart of a thermal management control method for an energy cabinet according to an embodiment of the present invention. Figure 2 As shown, the method comprises the following steps:

[0057] Step S201, detecting the temperature inside the energy cabinet, the humidity inside the cabinet, and the battery core temperature;

[0058] Specifically, the temperature inside the cabinet can be detected by a temperature sensor; the humidity inside the cabinet can be detected by a humidity sensor; and the battery cell temperature can be detected by a battery cell BMS. The temperature sensor and humidity sensor can be installed in the center of the top plate inside the cabinet, or on the side plate inside the cabinet, or considering that the battery cell is the core component of the energy cabinet, it can also be installed on the top plate where the battery cell is located. The specific installation position can be adjusted according to actual conditions and needs.

[0059] Step S202, controlling the actions of the first valve, the second valve, the third valve, and the fourth valve according to the temperature inside the cabinet, the humidity inside the cabinet, and the temperature of the battery cell.

[0060] An external condenser is arranged outside the energy cabinet, and a dehumidification evaporator is arranged inside the cabinet. In this embodiment, dehumidification is performed through the dehumidification evaporator when condensation occurs, the battery core is cooled when the battery core temperature is too high, and the cabinet is cooled when the ambient temperature inside the cabinet is too high. The coordinated control of battery core cooling, internal ambient temperature, and humidity is achieved to avoid condensation and reduce the energy consumption of the thermal management device.

[0061] Since the cabinet is a closed space, external moisture may enter the cabinet when the door is opened. During the operation of the energy cabinet, this moisture may condense on important precision electronic components in the cabinet, causing device damage. Therefore, the moisture in the cabinet is condensed into water and discharged from the cabinet through the cabinet dehumidification state. Based on this, this embodiment provides a preferred implementation method, that is, when the cabinet temperature, cabinet humidity and battery cell temperature meet the preset condensation conditions, the opening of the first valve is reduced, and the openings of the second valve and the fourth valve are increased to enter the dehumidification state.

[0062] When monitoring the condensation state in the cabinet, this embodiment monitors according to the cabinet temperature, cabinet humidity and battery core temperature. Specifically, the cabinet temperature, cabinet humidity and battery core temperature meet the preset condensation conditions, including: the cabinet humidity exceeds the preset humidity value and shows an upward trend; and the cabinet temperature is lower than the preset temperature value and shows a downward trend; and / or the battery core temperature is lower than the cabinet temperature. When the above three parameters meet the above conditions, it can be determined that dehumidification is currently required, so as to avoid the continued generation of condensation in other important electronic device parts, so that the moisture in the cabinet is concentrated on the dehumidification evaporator to condense into water, and then collected through the water receiving tray and discharged from the energy cabinet. After a period of time, the humidity in the cabinet decreases, and the dehumidification state can be exited. That is, after entering the dehumidification state, continue to detect the cabinet temperature, cabinet humidity and battery core temperature. If the cabinet temperature, cabinet humidity and battery core temperature no longer meet the preset condensation conditions, then exit the dehumidification state. Thereby avoiding condensation in the energy cabinet.

[0063] The battery cell BMS can collect the battery cell temperature in real time. When the battery cell temperature exceeds the preset safety temperature (for example, 40°C), the battery cell cooling state is started, that is, when the battery cell temperature ≥ the preset safety temperature, the opening of the third valve is increased to enter the battery cell cooling state. The ability of the battery cell cooling heat exchange is increased. When the battery cell temperature is lower than the preset safety temperature, the controller can be operated to reduce the opening of the regulating valve K3, that is, after entering the battery cell cooling state, the battery cell temperature continues to be detected. When the battery cell temperature is lower than the preset safety temperature, the battery cell cooling state is exited and the opening of the third valve is reduced. This reduces the cooling demand and energy consumption of the energy cabinet.

[0064] If the ambient temperature inside the energy cabinet is too high, it will affect the life of the electronic components, so it is necessary to control the ambient temperature inside the cabinet. Based on this, this embodiment provides a preferred implementation method, that is, when the temperature inside the cabinet is ≥ the preset ambient temperature (for example, 35°C), the second valve is adjusted down, the first valve and the fourth valve are adjusted up, and the cabinet cooling state is entered. The heat inside the cabinet is pumped outside the cabinet by the compressor. More refrigerant flows through the condenser outside the cabinet to bring the heat outside the cabinet. After entering the cabinet cooling state, continue to detect the temperature inside the cabinet. If the temperature inside the cabinet is lower than the preset ambient temperature, exit the cabinet cooling state. It should be noted that if the temperature inside the cabinet is too high and exceeds the preset ambient temperature by a lot, that is, the temperature difference between the temperature inside the cabinet and the preset ambient temperature exceeds the preset temperature difference, the second valve can be controlled to be directly closed, thereby bringing more heat to the outside of the cabinet, achieving rapid cooling inside the energy cabinet, and protecting the safety and performance of the electronic components in the energy cabinet.

[0065] It should be noted that, in this embodiment, the valve opening can be adjusted (increased or decreased) by a single adjustment according to a preset adjustment opening, or by gradual and multiple adjustments according to a preset adjustment opening. Alternatively, the corresponding adjustment opening is determined according to the size of the temperature difference, and the adjustment is performed according to the adjustment opening.

[0066] Example 3

[0067] Figure 3 is a logic flow chart of the thermal management control solution of the energy cabinet according to an embodiment of the present invention, such as Figure 3 As shown, the process includes:

[0068] Step 1: Collect the temperature T and humidity R inside the energy cabinet.

[0069] Step 2: Since the cabinet is a closed space, external moisture may enter the cabinet when the door is opened. During the operation of the energy cabinet, this moisture may condense on important precision electronic components in the cabinet, causing damage to the components. Therefore, the moisture in the cabinet is actively condensed into water and discharged from the cabinet through the dehumidification state in the cabinet. When the temperature sensor and humidity sensor detect that condensation may occur (the temperature and humidity conditions enter the condensation range), the control operation is to close the opening of the regulating control valve K1 and open the opening of the regulating control valves K2 and K4 to avoid condensation in other important electronic components. The moisture in the cabinet is concentrated on the dehumidification evaporator and condensed into water, which is collected through the water receiving tray and discharged from the cabinet. After a period of time, the humidity in the cabinet decreases and the dehumidification state can be exited.

[0070] Step 3: The cell BMS collects the cell temperature in real time. When the cell temperature exceeds the set value, the cell cooling state is started, and the controller operates to open the regulating valve K3 to increase the cooling heat exchange capacity of the cell, and the cell cooling state is operated. When the cell temperature is lower than the set value, the controller can be operated to reduce the opening of the regulating valve K3 to reduce the cooling demand and energy consumption.

[0071] Step 4: If the temperature in the energy cabinet is too high, it will affect the life of electronic components, so it is necessary to control the ambient temperature in the cabinet. When the temperature sensor detects that the temperature in the cabinet is greater than the set value, the cabinet enters the cooling state, and the controller closes the regulating valve K2 and opens the regulating valves K1 and K4 to pump the heat in the cabinet to the outside through the compressor.

[0072] It should be noted that the execution order of the above steps 2-4 is not limited to Figure 3 As shown, the control operations of the three steps can be executed simultaneously, or can be executed in sequence according to a priority order.

[0073] Example 4

[0074] This embodiment provides an electronic device, which is used in a thermal management control method for an energy cabinet. The electronic device includes: at least one processor; and a memory connected to the at least one processor in communication; wherein:

[0075] The memory stores instructions that can be executed by the one processor, and the instructions are executed by the at least one processor so that the at least one processor can: detect the temperature inside the energy cabinet, the humidity inside the cabinet, and the battery cell temperature; and control the actions of the first valve, the second valve, the third valve, and the fourth valve according to the temperature inside the cabinet, the humidity inside the cabinet, and the battery cell temperature.

[0076] Example 5

[0077] The embodiment of the present invention provides a software, which is used to execute the technical solutions described in the above embodiment and preferred implementation manner.

[0078] An embodiment of the present invention provides a non-volatile computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions can execute the thermal management control method of the energy cabinet in any of the above method embodiments.

[0079] The above-mentioned software is stored in the above-mentioned storage medium, which includes but is not limited to: a CD, a floppy disk, a hard disk, an erasable memory, etc.

[0080] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0081] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0082] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0083] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0084] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0085] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0086] The above product can execute the method provided by the embodiment of the present invention, and has the functional modules and beneficial effects corresponding to the execution method. For technical details not described in detail in this embodiment, please refer to the method provided by the embodiment of the present invention.

[0087] The electronic devices of the embodiments of the present invention exist in various forms, including but not limited to:

[0088] (1) Mobile communication devices: These devices are characterized by their mobile communication functions and their main purpose is to provide voice and data communications. These terminals include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.

[0089] (2) Ultra-mobile personal computer devices: These devices fall into the category of personal computers, have computing and processing capabilities, and generally also have mobile Internet access features. These terminals include: PDA, MID and UMPC devices, such as iPad.

[0090] (3) Portable entertainment devices: These devices can display and play multimedia content. They include audio and video players (such as iPods), handheld game consoles, e-books, as well as smart toys and portable car navigation devices.

[0091] (4) Server: A device that provides computing services. The server consists of a processor, hard disk, memory, device bus, etc. The server is similar to the general computer architecture, but because it needs to provide highly reliable services, it has higher requirements in terms of processing power, stability, reliability, security, scalability, manageability, etc.

[0092] (5) Other electronic devices with data interaction functions, such as televisions, large-screen cars, etc.

[0093] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A thermal management device for an energy cabinet, characterized in that: The thermal management device comprises: a compressor, a cabinet condenser, and a battery core cooling heat exchanger connected in sequence; and also comprises: An external condenser is arranged in parallel with the internal condenser and is arranged outside the energy cabinet; The first end of the parallel pipeline where the external condenser is located is located on the pipeline between the compressor and the internal condenser, and the second end is located on the pipeline between the internal condenser and the battery core cooling heat exchanger; a first valve is provided on the pipeline between the first end and the external condenser; a second valve is provided on the pipeline between the first end and the internal condenser; A dehumidifying evaporator is arranged in parallel with the battery core cooling heat exchanger; The first end of the parallel pipeline where the dehumidification evaporator is located is located on the pipeline between the condenser in the cabinet and the battery cell cooling heat exchanger, and the second end is located on the pipeline between the battery cell cooling heat exchanger and the compressor; a third valve is arranged on the pipeline between the first end and the battery cell cooling heat exchanger; and a fourth valve is arranged on the pipeline between the first end and the dehumidification evaporator.

2. The thermal management device according to claim 1, characterized in that: The thermal management device further comprises: A battery cell BMS is arranged at the battery cell of the energy cabinet and is used to detect the temperature of the battery cell; A temperature sensor is arranged inside the energy cabinet and is used to detect the temperature inside the energy cabinet; The humidity sensor is arranged inside the energy cabinet and is used to detect the humidity inside the energy cabinet.

3. The thermal management device according to claim 2, characterized in that: The thermal management device further comprises: The controller is used to control the actions of the first valve, the second valve, the third valve and the fourth valve according to the temperature inside the cabinet, the humidity inside the cabinet and the temperature of the battery cell.

4. An energy cabinet, characterized in that: The energy cabinet comprises the thermal management device of the energy cabinet according to any one of claims 1 to 3.

5. A thermal management control method for an energy cabinet, applied to the thermal management device of the energy cabinet according to any one of claims 1 to 3, characterized in that: The method comprises: Detecting the temperature inside the energy cabinet, the humidity inside the cabinet, and the battery core temperature; The actions of the first valve, the second valve, the third valve and the fourth valve are controlled according to the temperature in the cabinet, the humidity in the cabinet and the temperature of the battery cell.

6. The method according to claim 5, characterized in that Detecting the temperature inside the energy cabinet, the humidity inside the cabinet and the battery core temperature, including: Detecting the temperature inside the cabinet by a temperature sensor; Detecting the humidity in the cabinet by means of a humidity sensor; The battery cell temperature is detected by the battery cell BMS.

7. The method according to claim 5, characterized in that According to the temperature in the cabinet, the humidity in the cabinet and the temperature of the battery cell, the actions of the first valve, the second valve, the third valve and the fourth valve are controlled, including: When the temperature in the cabinet, the humidity in the cabinet and the battery cell temperature meet the preset condensation conditions, the opening of the first valve is reduced, and the openings of the second valve and the fourth valve are increased to enter the dehumidification state.

8. The method according to claim 7, characterized in that The temperature inside the cabinet, the humidity inside the cabinet and the battery cell temperature meet the preset condensation conditions, including: The humidity in the cabinet exceeds the preset humidity value and shows an increasing trend; and the temperature in the cabinet is lower than the preset temperature value and shows a decreasing trend; and / or, The battery core temperature is lower than the cabinet internal temperature.

9. The method according to claim 8, characterized in that After entering the dehumidification state, the method further includes: Continue to detect the temperature inside the cabinet, the humidity inside the cabinet, and the battery core temperature. If the temperature inside the cabinet, the humidity inside the cabinet, and the battery core temperature no longer meet the preset condensation conditions, exit the dehumidification state.

10. The method according to claim 5, characterized in that According to the temperature in the cabinet, the humidity in the cabinet and the temperature of the battery cell, the actions of the first valve, the second valve, the third valve and the fourth valve are controlled, including: When the battery cell temperature is ≥ the preset safety temperature, the opening of the third valve is increased to enter the battery cell cooling state.

11. The method according to claim 10, characterized in that After increasing the opening of the third valve and entering the battery cell cooling state, the method further includes: Continue to detect the battery cell temperature, and after the battery cell temperature is lower than the preset safety temperature, exit the battery cell cooling state and reduce the opening of the third valve.

12. The method according to claim 5, characterized in that According to the temperature in the cabinet, the humidity in the cabinet and the temperature of the battery cell, the actions of the first valve, the second valve, the third valve and the fourth valve are controlled, including: When the temperature in the cabinet is greater than or equal to the preset ambient temperature, the second valve is adjusted downward, and the first valve and the fourth valve are adjusted upward to enter a cabinet cooling state.

13. The method according to claim 12, characterized in that After entering the cabinet cooling state, the method further includes: Continue to detect the temperature inside the cabinet, and if the temperature inside the cabinet is lower than the preset ambient temperature, exit the cabinet cooling state.

14. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 5 to 13 is implemented.

15. An electronic device, characterized in that: include: one or more processors; A storage device for storing one or more programs, which, when executed by the one or more processors, enables the one or more processors to implement the method as claimed in any one of claims 5 to 13.

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