Temperature and humidity control system for energy storage outdoor cabinet
By designing a temperature and humidity control system for energy storage outdoor cabinets, the temperature and humidity control device, temperature detection device, humidity detection device, heating device and heat dissipation device are used to solve the problems of poor humidity control effect and insulation failure in the prior art, efficient dehumidification and temperature control are achieved, and insulation performance and reliability of the battery cell temperature are improved.
Patent Information
- Application Number
- CN202422005993.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-19
AI Technical Summary
Existing energy storage outdoor cabinets have poor dehumidification effects under high humidity and may lead to insulation failure or short circuit failure.
A temperature and humidity control system is designed, including a temperature and humidity control device, a temperature detection device, a humidity detection device, a heating device and a heat dissipation device. The system can realize dehumidification and temperature control by detecting the humidity and temperature in the cabinet, controlling heating or heat dissipation devices, improving insulation performance and reducing short circuit failures.
The system can effectively dehumidify under high humidity, improve insulation performance, reduce the chance of short circuit failure, and ensure the safety of the battery cell temperature through temperature control.
Smart Images
Figure CN222926989U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of outdoor cabinet control, and particularly relates to a temperature and humidity control system for an energy storage outdoor cabinet. Background Art
[0002] As a specially designed energy storage system for outdoor environments, energy storage outdoor cabinets are usually used in solar photovoltaic power stations, wind power stations, microgrids, and other application scenarios that require energy storage solutions. These energy storage systems can store excess electrical energy and release it when needed to balance the grid load, improve energy utilization efficiency and stability.
[0003] The existing energy storage outdoor cabinets mainly control humidity by using a dehumidifier to suck in humid air through a fan inside the dehumidifier, so that the humid air is cooled and condensed by a semiconductor cooler inside the dehumidifier, and the condensed water drops into the water guide trough under the action of gravity, and finally flows out of the cabinet through a water pipe. However, this method has poor dehumidification effect in the case of high humidity, and may also cause insulation failure or short circuit failure. Summary of the Invention
[0004] In order to solve the above-mentioned technical problems that the existing humidity control method has poor dehumidification effect in the case of high humidity and may also cause insulation failure or short circuit failure, the utility model provides a temperature and humidity control system for an energy storage outdoor cabinet, and its technical solution is as follows:
[0005] The utility model provides a temperature and humidity control system for an energy storage outdoor cabinet. The system includes a temperature and humidity control device, a temperature detection device, and a humidity detection device arranged inside the energy storage outdoor cabinet, a heat dissipation device arranged at the rear side of the energy storage outdoor cabinet, and a heating device arranged at the bottom of the energy storage outdoor cabinet, wherein:
[0006] The temperature and humidity control device is connected to the humidity detection device to receive at least one humidity inside the cabinet collected by the humidity detection device.
[0007] The temperature and humidity control device is respectively connected to the heating device, the heat dissipation device, and the temperature detection device. When any humidity inside the cabinet exceeds a preset humidity threshold, it is used to control the heating device to heat the energy storage outdoor cabinet, and receive at least one first temperature collected by the temperature detection device. When any first temperature exceeds a preset temperature threshold, it is used to control the heat dissipation device to dissipate heat from the energy storage outdoor cabinet.
[0008] In an optional solution, the temperature and humidity control device is further used to receive at least one second temperature collected by the temperature detection device. When any second temperature exceeds a preset temperature threshold, it is used to control the heat dissipation device to dissipate heat from the energy storage outdoor cabinet.
[0009] In yet another alternative solution, the first end of the temperature and humidity control device is connected to the first power supply end of the energy storage outdoor cabinet, and the second end of the temperature and humidity control device is connected to the second power supply end of the energy storage outdoor cabinet.
[0010] In yet another alternative solution, the heating device is respectively connected to the third end of the temperature and humidity control device and the first power supply end of the energy storage outdoor cabinet.
[0011] In yet another alternative solution, the heating device is a heating resistor.
[0012] In yet another alternative solution, the heat dissipation device is respectively connected to the fourth end of the temperature and humidity control device and the first power supply end of the energy storage outdoor cabinet.
[0013] In yet another alternative solution, the heat dissipation device is a heat dissipation fan.
[0014] In yet another alternative solution, the temperature detection device is a temperature sensor.
[0015] In yet another alternative solution, the humidity detection device is a humidity sensor.
[0016] In yet another alternative solution, the temperature and humidity control device is a WSK temperature and humidity controller.
[0017] Advantages of the present utility model:
[0018] When controlling the humidity of the energy storage outdoor cabinet, when the humidity inside the cabinet collected by the humidity detection device in the energy storage outdoor cabinet exceeds the preset humidity threshold, it indicates that the energy storage outdoor cabinet needs to be dehumidified. The temperature and humidity control device controls the heating device arranged at the bottom of the energy storage outdoor cabinet to perform heating treatment. Compared with the existing dehumidification method of a dehumidifier, it can fundamentally achieve the drying of the bottom of the energy storage outdoor cabinet, not only improving the dehumidification efficiency and insulation performance, but also reducing the probability of short-circuit faults. In addition, in order to avoid the influence of the heating effect on the temperature of the battery pack inside the energy storage outdoor cabinet, when the temperature inside the cabinet collected by the temperature detection device in the energy storage outdoor cabinet exceeds the preset temperature threshold, the temperature and humidity control device controls the heat dissipation device arranged at the rear side of the energy storage outdoor cabinet to perform heat dissipation treatment, thereby increasing the reliability of the control of the cell temperature and enabling the energy storage outdoor cabinet to achieve integrated temperature and humidity control. Description of the Drawings
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0020] Figure 1 Structural diagram of a temperature and humidity control system for an energy storage outdoor cabinet provided by an embodiment of the present utility model;
[0021] Figure 2 Another structural diagram of a temperature and humidity control system for an energy storage outdoor cabinet provided by an embodiment of the present utility model. Detailed implementation manners
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.
[0023] In the following description, the terms "first" and "second" are only for the purpose of description and cannot be construed as indicating or implying relative importance. The following description provides multiple embodiments of the present utility model. Different embodiments can be replaced or combined, so the present utility model can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then the present utility model should also be considered to include embodiments containing all other possible combinations of A, B, C, and D, even though such embodiments may not be explicitly described in the following content.
[0024] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes can be made to the functions and arrangements of the described elements without departing from the scope of the content of the present utility model. Each example can appropriately omit, substitute, or add various processes or components. For example, the described method can be executed in a different order than the described order, and various steps can be added, omitted, or combined. In addition, the features described in some examples can be combined into other examples.
[0025] The existing energy storage outdoor cabinets mainly use a dehumidifier (which can also be understood as an industrial dehumidifier) to remove the moisture in the cabinet. The dehumidifier can be connected to the power supply terminal of the energy storage outdoor cabinet (such as, but not limited to, a power supply terminal providing 24V AC), and the humidity signal inside the energy storage outdoor cabinet can be collected in real time through an external humidity sensor. The dehumidifier can timely feedback the humidity signal to the main control platform of the energy storage outdoor cabinet through a communication interface (such as, but not limited to, an RS485 port). When the main control platform detects that the humidity signal exceeds the preset humidity threshold, the main control platform sends a start command to the dehumidifier, so that the dehumidifier sucks the humid air through the fan inside the dehumidifier, cools and condenses the air through the semiconductor cooler inside the dehumidifier, and the condensed water on the cooler drips into the water guide trough under the action of gravity, and finally flows out of the cabinet through the water pipe.
[0026] It can be seen that the key to the above-mentioned existing dehumidification method lies in the ability of the fan in the dehumidifier to inhale humid air and the efficiency of condensation. When the cabinet of the energy storage outdoor cabinet is relatively large or in rainy weather, the overall dehumidification effect of the dehumidifier is poor, which is likely to cause insulation failure or short-circuit failure.
[0027] Therefore, in order to bring better dehumidification effect and insulation performance to the energy storage outdoor cabinet, please refer to Figure 1 the structure diagram of a temperature and humidity control system for an energy storage outdoor cabinet provided by the embodiment of the present invention shown in
[0028] As Figure 1 shown, the temperature and humidity control system for an energy storage outdoor cabinet may include a temperature and humidity control device, a temperature detection device, a humidity detection device provided in the energy storage outdoor cabinet, a heat dissipation device provided at the rear side of the energy storage outdoor cabinet, and a heating device provided at the bottom of the energy storage outdoor cabinet.
[0029] Among them, the temperature and humidity control device can be connected to the power supply terminal of the energy storage outdoor cabinet (for example, but not limited to the power supply terminal providing 24V AC) to supply power to the temperature and humidity control device by the energy storage outdoor cabinet to ensure the normal operation of the temperature and humidity control device; the temperature and humidity control device can also be connected to the humidity detection device to receive one or more humidity levels inside the cabinet collected by the humidity detection device. Here, the humidity detection device can be, but not limited to, a humidity sensor well-known in the art to collect the real-time humidity inside the energy storage outdoor cabinet at a preset frequency, and the number of humidity sensors is not limited in the present invention.
[0030] The temperature and humidity control device can also be connected to the heating device to send a start command or a stop command to the heating device, so that when the heating device receives the start command, it heats the energy storage outdoor cabinet from the bottom of the energy storage outdoor cabinet, that is, fundamentally dehumidifies and dries the inside of the energy storage outdoor cabinet by heating, or when the heating device receives the stop command, it stops heating the energy storage outdoor cabinet. Here, the heating device can be, but not limited to, a heating resistor set or a heating block well-known in the art, and the installation method and corresponding working principle of it at the bottom of the energy storage outdoor cabinet are all technical means well-known in the art, so no more details will be described here.
[0031] The temperature and humidity control device can also be connected to a temperature detection device to receive one or more first temperatures collected by the temperature detection device, that is, the temperature of the battery pack in the outdoor energy storage cabinet (which can also be understood as the temperature of the battery cells in the battery pack), so as to avoid the heating temperature affecting the battery pack temperature when using the heating device to control the humidity of the outdoor energy storage cabinet. Here, the temperature detection device can be, but is not limited to, a temperature sensor well-known in the art, which collects the real-time temperature in the outdoor energy storage cabinet at a preset frequency, and the number of the temperature sensors is not limited in the present invention.
[0032] It should be noted that in the embodiment of the present invention, in addition to collecting the real-time temperature in the outdoor energy storage cabinet by using the temperature detection device when controlling the humidity of the outdoor energy storage cabinet, the second temperature in the outdoor energy storage cabinet (that is, the temperature of the battery pack in the outdoor energy storage cabinet) can also be collected by the temperature detection device when controlling the temperature in the outdoor energy storage cabinet, so as to avoid the existing temperature control method. After the outdoor energy storage cabinet is exposed to the sun, the temperature inside the cabinet is relatively high and exceeds the normal working environment temperature of the liquid cooling unit. At this time, since the liquid cooling unit is in the standby state, if the temperature of the battery cells in the battery pack exceeds the preset temperature threshold, the liquid cooling unit will not start to cool down, which will bring certain safety hazards.
[0033] The temperature and humidity control device can also be connected to a heat dissipation device to send a start command or a stop command to the heat dissipation device, so that when the heat dissipation device receives the start command, it dissipates heat from the rear side of the outdoor energy storage cabinet, that is, avoids the heating device affecting the battery pack temperature by dissipating heat, or makes the heat dissipation device stop dissipating heat from the outdoor energy storage cabinet when it receives the stop command. Here, the heat dissipation device can be, but is not limited to, a heat dissipation fan well-known in the art, and the installation method and the corresponding working principle on the rear side of the outdoor energy storage cabinet are technical means well-known in the art, so no more details are described here.
[0034] In addition, the temperature and humidity control device can be, but is not limited to, connected to the upper computer through the RS485 communication port to send a warning signal to the upper computer when detecting an abnormality of the heating device or the heat dissipation device (such as a line break), so as to remind the staff to check and process the abnormality of the heating device or the heat dissipation device in time.
[0035] It is understandable that when controlling the humidity of the outdoor energy storage cabinet, when it is detected that the humidity inside the cabinet collected in real time by the humidity detection device exceeds the preset humidity threshold, it indicates that the outdoor energy storage cabinet needs to be dehumidified at the current moment. Then, the temperature and humidity control device can control the heating device to perform heating treatment. Compared with the existing dehumidification method of dehumidifiers, it can fundamentally achieve the drying of the bottom of the outdoor energy storage cabinet, not only improving the dehumidification efficiency and insulation performance, but also reducing the probability of short-circuit faults. In addition, in order to avoid the influence of the heating effect on the temperature of the battery pack inside the outdoor energy storage cabinet, the temperature and humidity control device can also receive the temperature inside the cabinet (i.e., the first temperature) collected in real time by the temperature detection device. When the temperature and humidity control device detects that the temperature inside the cabinet exceeds the preset temperature threshold, it controls the heat dissipation device to perform heat dissipation treatment until the temperature inside the cabinet collected in real time is lower than the preset temperature threshold, and then controls the heat dissipation device to stop heat dissipation treatment, so as to drive the hot air to spread throughout the cabinet, accelerate the drying of the humid air, and discharge the heated humid air out of the cabinet, thereby increasing the reliability of the control of the cell temperature and enabling the outdoor energy storage cabinet to achieve integrated temperature and humidity control.
[0036] Since the existing temperature control method mainly uses a liquid cooling unit to cool the battery pack inside the outdoor energy storage cabinet, the liquid cooling unit can be connected to the power supply end of the outdoor energy storage cabinet (such as but not limited to the power supply end providing 24V AC), and the liquid cooling unit can also be connected to the liquid cooling plate inside the battery pack in the outdoor energy storage cabinet through a liquid cooling pipeline. The liquid cooling unit can also be connected to the battery management platform of the outdoor energy storage cabinet through a communication interface (such as but not limited to the RS485 port). When the battery management platform detects that the temperature of the battery pack inside the outdoor energy storage cabinet exceeds the set value, the battery management platform sends a start command to the liquid cooling unit, and then the liquid cooling unit starts the refrigeration mode to cool the battery pack.
[0037] However, this temperature control method requires that the liquid cooling unit must be able to work normally regardless of the ambient temperature. Currently, the ambient temperature required for the normal operation of the liquid cooling units on the market is generally around -30~50°C, and the protection level of the outdoor cabinet is generally high. Therefore, in some areas at noon in summer, after the outdoor cabinet is exposed to the sun, the temperature inside the cabinet is relatively high and exceeds the normal operating ambient temperature of the liquid cooling unit. At this time, since the liquid cooling unit is in a standby state, if the temperature of the cell inside the battery pack exceeds the set value, the liquid cooling unit will not start to cool down, which will bring certain safety hazards.
[0038] It can also be understood that when the present utility model controls the temperature of the energy storage outdoor cabinet, when it is detected that the cabinet temperature (i.e., the second temperature) collected in real time by the humidity detection device exceeds the preset temperature threshold, it indicates that the energy storage outdoor cabinet needs to be cooled at the current moment. Furthermore, the temperature and humidity control device can control the heat dissipation device to perform heat dissipation treatment to ensure that the working environment temperature of the liquid cooling unit is always within the normal working range. And when the battery management platform detects that the temperature of the battery pack in the energy storage outdoor cabinet exceeds the set value, the battery management platform can send a start command to the liquid cooling unit, and then the liquid cooling unit starts the refrigeration mode to cool the battery pack. Compared with the existing temperature control method, the control of the cabinet internal environment temperature is increased, ensuring that the liquid cooling unit is always in a normal working temperature environment, and thus improving the reliability of the battery pack temperature control.
[0039] It should also be noted that the temperature and humidity control device mentioned in the embodiments of the present utility model can be but is not limited to the well-known WSK temperature and humidity controller in the art. As a professional device for automatically controlling the environmental temperature and humidity, the WSK temperature and humidity controller can perform corresponding control processing according to the data collected by the sensor. And the above-mentioned control of the heat dissipation device to perform heat dissipation treatment according to the cabinet humidity collected by the humidity detection device, and the control of the heating device to perform heating treatment according to the cabinet temperature collected by the temperature detection device are all conventional processing means when the WSK temperature and humidity controller is running. That is, the improvement of the embodiments of the present utility model over the prior art lies in the hardware part, and the computer programs involved are known.
[0040] Reference can also be made here Figure 2 to the structure diagram of another temperature and humidity control system for an energy storage outdoor cabinet provided by the embodiments of the present utility model shown in Figure 2 As shown, the temperature and humidity control system for an energy storage outdoor cabinet may include a WSK temperature and humidity controller, the first power supply end of the energy storage outdoor cabinet ( Figure 2 the L end point of AC220V in Figure 2 ) connected to the first end of the WSK temperature and humidity controller ( Figure 2 the end point 7 in Figure 2 ), the second power supply end of the energy storage outdoor cabinet ( Figure 2 the N end point of AC220V in Figure 2 ) connected to the second end of the WSK temperature and humidity controller ( Figure 2A humidity sensor connected to endpoint 6 and endpoint 5 of the WSK temperature and humidity controller (not shown in the figure), and a temperature sensor connected to endpoint 3 and endpoint 1 of the WSK temperature and humidity controller.
Claims
1. A temperature and humidity control system for an outdoor energy storage cabinet, characterized in that: The system includes a temperature and humidity control device, a temperature detection device, a humidity detection device arranged in the energy storage outdoor cabinet, a heat dissipation device arranged at the rear side of the energy storage outdoor cabinet, and a heating device arranged at the bottom of the energy storage outdoor cabinet, wherein: The temperature and humidity control device is connected to the humidity detection device to receive at least one cabinet humidity collected by the humidity detection device; The temperature and humidity control device is respectively connected to the heating device, the heat dissipation device and the temperature detection device, so as to control the heating device to heat the energy storage outdoor cabinet when the humidity in any one of the cabinets exceeds a preset humidity threshold, and to receive at least one first temperature collected by the temperature detection device, and when any one of the first temperatures exceeds a preset temperature threshold, control the heat dissipation device to dissipate heat from the energy storage outdoor cabinet.
2. The system according to claim 1, characterized in that The temperature and humidity control device is also used to receive at least one second temperature collected by the temperature detection device, and when any of the second temperatures exceeds the preset temperature threshold, control the heat dissipation device to perform heat dissipation processing on the energy storage outdoor cabinet.
3. The system according to claim 1, characterized in that The first end of the temperature and humidity control device is connected to the first power supply end of the energy storage outdoor cabinet, and the second end of the temperature and humidity control device is connected to the second power supply end of the energy storage outdoor cabinet.
4. The system according to claim 3, characterized in that The heating device is respectively connected to the third end of the temperature and humidity control device and the first power supply end of the energy storage outdoor cabinet.
5. The system according to claim 4, characterized in that The heating device is a heating resistor.
6. The system according to claim 3, characterized in that The heat dissipation device is respectively connected to the fourth end of the temperature and humidity control device and the first power supply end of the energy storage outdoor cabinet.
7. The system according to claim 6, characterized in that The heat dissipation device is a heat dissipation fan.
8. The system according to claim 1, characterized in that The temperature detection device is a temperature sensor.
9. The system according to claim 1, characterized in that The humidity detection device is a humidity sensor.
10. The system according to claim 1, characterized in that The temperature and humidity control device is a WSK temperature and humidity controller.