Dehumidification control circuit, liquid cooling system and liquid cooling energy storage integrated system

Abstract

The utility model discloses a dehumidification control circuit for a liquid cooling energy storage integrated system and a liquid cooling system, and belongs to the technical field of energy storage system dehumidification. The dehumidification device comprises a power supply, a humidity sensor, a dehumidification controller, a dehumidifier, an NMOS (N-channel Metal Oxide Semiconductor) tube, a temperature control switch, a unidirectional silicon controlled rectifier and a heater, a humidity signal output end of the humidity sensor is connected with a humidity signal input end of the dehumidification controller, a level output end of the dehumidification controller is connected with a grid electrode of the NMOS tube, the dehumidifier and the NMOS tube are connected in series in the same branch circuit, and the heater is connected with the temperature control switch. The temperature control switch, the one-way silicon controlled rectifier and the heater are connected in series in another branch, and a control electrode of the one-way silicon controlled rectifier is connected with the branch where the dehumidifier is located. According to the utility model, the dehumidification efficiency of the environment in the energy storage integrated system can be effectively ensured.

Description

Technical Field

[0001] This utility model relates to the field of dehumidification technology for energy storage systems, and in particular to a dehumidification control circuit, a liquid cooling system, and a liquid-cooled energy storage integrated system. Background Technology

[0002] Currently, most energy storage integrated systems use liquid cooling systems to cool the energy storage batteries. The liquid cooling system mainly consists of liquid cooling pipes laid at the bottom of the energy storage batteries and liquid cooling mechanisms. Since the temperature of the liquid cooling pipes is very low when the liquid cooling system is working, condensation will be generated on the surface of the liquid cooling pipes. In order to avoid the safety hazards caused by condensation, dehumidifiers are generally used to dehumidify the internal environment of the energy storage integrated system.

[0003] Existing technologies often rely on manually setting the dehumidifier's operating time, but due to varying operating states and environmental conditions within the energy storage integrated system, dehumidification efficiency is difficult to guarantee. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art and provide a dehumidification control circuit, a liquid cooling system and a liquid cooling energy storage integrated system, which can effectively ensure the dehumidification efficiency of the environment inside the energy storage integrated system.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A dehumidification control circuit for liquid-cooled energy storage batteries includes a power supply, a humidity sensor, a dehumidification controller, a dehumidifier, an NMOS transistor, a temperature control switch, a unidirectional thyristor, and a heater. The humidity signal output terminal of the humidity sensor is connected to the humidity signal input terminal of the dehumidification controller, the level output terminal of the dehumidification controller is connected to the gate of the NMOS transistor, the dehumidifier and the NMOS transistor are connected in series in the same branch, the temperature control switch, the unidirectional thyristor, and the heater are connected in series in another branch, and the control electrode of the unidirectional thyristor is connected to the branch where the dehumidifier is located.

[0007] Preferably, the device includes a battery and a PMOS transistor. The battery is connected in parallel with the power supply, the output terminal of the battery is connected to the source of the PMOS transistor, and the gate of the PMOS transistor is connected to the power supply output terminal.

[0008] Preferably, the power output terminal is provided with a diode, and the gate and drain of the PMOS transistor are connected to the two ends of the diode.

[0009] Preferably, the gate of the PMOS transistor is connected to a voltage divider resistor.

[0010] Preferably, the power source is an energy storage battery.

[0011] This utility model also provides a liquid cooling system for an energy storage integrated system, including a liquid chiller, a liquid cooling pipe and a dehumidification control circuit as described above. The energy storage integrated system includes several energy storage batteries, and the liquid cooling pipe is located at the bottom of the energy storage batteries.

[0012] Preferably, the dehumidifier and the heater are located on opposite sides of the energy storage battery.

[0013] This utility model also provides a liquid-cooled energy storage integrated system, including several energy storage batteries and the liquid cooling system described above.

[0014] The advantages of this utility model are:

[0015] 1. It can effectively adapt to different environmental conditions when the energy storage integrated system is working and when it is stopped, and perform efficient dehumidification;

[0016] 2. Utilize batteries to ensure that dehumidification continues even after the energy storage integrated system stops working, thus ensuring the dehumidification effect. Attached Figure Description

[0017] Figure 1 This is a circuit diagram of a dehumidification control circuit for a liquid-cooled energy storage battery, provided as an embodiment of this specification. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1As shown, this embodiment provides a dehumidification control circuit for a liquid-cooled energy storage integrated system, including a power supply, a humidity sensor 100, a dehumidification controller 200, a dehumidifier 300, an NMOS transistor Q1, a temperature control switch 400, a unidirectional silicon controlled rectifier (SCR), and a heater 500. The humidity signal output terminal of the humidity sensor 100 is connected to the humidity signal input terminal of the dehumidification controller 200, and the level output terminal of the dehumidification controller 200 is connected to the gate G of the NMOS transistor Q1. The dehumidifier 300 and the NMOS transistor Q1 are connected in series in the same branch. The temperature control switch 400, the unidirectional silicon controlled rectifier (SCR), and the heater 500 are connected in series in another branch. The control electrode of the unidirectional silicon controlled rectifier (SCR) is connected to the branch where the dehumidifier 300 is located. The power supply is generally provided by an energy storage battery. The humidity sensor 100, the dehumidification controller 200, the dehumidifier 300, and the heater 500 are located in parallel branches and are simultaneously powered by the power supply. The dehumidifier controller 200 can use a conventional control chip. Pins 1 and 2 are the positive and negative terminals, respectively; pin 3 is the humidity signal input pin; and pin 4 is the level output pin. According to the settings, when the humidity signal input to pin 3 is a high humidity signal, pin 4 outputs a high level; otherwise, pin 4 outputs a low level. The humidity sensor 100 is used to detect the humidity of the environment where the energy storage battery is located, and its humidity signal output terminal is connected to pin 3 of the dehumidifier controller.

[0020] The working principle of this dehumidification control circuit is as follows: The humidity sensor 100 monitors the ambient humidity in real time and outputs the humidity signal to the dehumidification controller 200. When the humidity is high, the dehumidification controller 200 outputs a high level to the gate G of the NMOS transistor Q1. At this time, the NMOS transistor is turned on, that is, the branch where the dehumidifier 300 is located is turned on, and the dehumidifier 300 starts to work. At the same time, since the branch where the dehumidifier 300 is located is turned on, the control electrode of the unidirectional thyristor SCR receives a pulse voltage, the unidirectional thyristor SCR is turned on, and the temperature control switch 400 closes or opens according to the set temperature value. When the temperature is low, the temperature control switch 400 closes, the branch is turned on, and the heater 500 starts to work; when the ambient temperature is high, the temperature control switch 400 opens, and the heater stops working.

[0021] When the ambient humidity is low, the dehumidifier controller 200 outputs a low level to the gate G of the NMOS transistor Q1. At this time, the NMOS transistor Q1 is turned off, that is, the branch where the dehumidifier 300 is located is not conducting, and the dehumidifier 300 does not work. At the same time, the unidirectional thyristor SCR is also turned off. Regardless of the ambient temperature, the heater 500 cannot work. That is, one of the conditions for the heater 500 to start is that the dehumidifier 300 is started.

[0022] In actual use, the energy storage integrated system generates heat during operation, resulting in a relatively high ambient temperature. This facilitates condensation evaporation, leading to relatively high dehumidification efficiency for dehumidifier 300. Simultaneously, due to the high ambient temperature, the temperature control switch 400 is off, and heater 500 remains off to avoid increasing the operating temperature of the energy storage battery. When the energy storage integrated system stops operating, residual condensation remains. As the ambient temperature decreases, the dehumidification efficiency of dehumidifier 300 decreases. Therefore, heater 500 heats the environment to accelerate condensation evaporation and improve dehumidification efficiency. Since the energy storage battery is no longer operating, heater 500 will not affect it. Therefore, this dehumidification control circuit can effectively adapt to different environmental conditions during and after the energy storage integrated system's operation, achieving efficient dehumidification.

[0023] In addition, the power supply for the dehumidification control circuit is provided by the energy storage battery in the energy storage integrated system. When the energy storage battery stops working, the power supply to its dehumidification control circuit is generally also cut off, and the dehumidifier 300 will stop working. However, residual condensate may still exist in the environment at this time. Therefore, in order to continue dehumidification after the energy storage battery stops supplying power to the dehumidification control circuit, this circuit also includes a battery GB and a PMOS transistor Q2. The battery GB is connected in parallel with the energy storage battery, and the output terminal of the battery GB is connected to the source S of the PMOS transistor Q2. The gate G of the PMOS transistor Q2 is connected to the output terminal of the energy storage battery. Thus, when the energy storage battery is working normally and supplying power, the source voltage of the PMOS transistor Q2 is less than the gate voltage, the PMOS transistor Q2 is turned off, and the power supply for the dehumidification control circuit is provided by the energy storage battery; simultaneously, the energy storage battery charges the battery GB through the parasitic diode inside the PMOS transistor Q2. When the energy storage battery stops supplying power, the source voltage of PMOS transistor Q2 is greater than its gate voltage, causing Q2 to conduct. The power for the dehumidification control circuit is then supplied by the battery GB. To prevent the battery GB from transferring its charge to the energy storage battery, a diode D is installed at the battery output terminal. The gate (S) and drain (D) of PMOS transistor Q2 are connected to the two ends of diode D. To prevent excessive voltage on the gate (G) of the PMOS transistor, a voltage divider resistor R is connected to the gate G.

[0024] This embodiment also provides a liquid cooling system for an integrated energy storage system, including a liquid chiller, liquid cooling pipes, and a dehumidification control circuit as described above. The integrated energy storage system includes several energy storage batteries, and the liquid cooling pipes are located at the bottom of the energy storage batteries. To ensure dehumidification efficiency after the integrated energy storage system stops working, the dehumidifier and heater are located on opposite sides of the energy storage batteries. The heat generated by the heater is then carried by the airflow generated by the dehumidifier across the surface of the liquid cooling pipes, accelerating the evaporation of condensate on the surface of the liquid cooling pipes.

[0025] This embodiment also provides a liquid-cooled energy storage integrated system, including a plurality of energy storage batteries and the liquid cooling system described above.

[0026] The above are merely preferred embodiments of this utility model, and are implementations based on the overall concept of this utility model. Furthermore, the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A dehumidification control circuit for a liquid-cooled energy storage integrated system, characterized in that, The system includes a power supply, a humidity sensor, a dehumidifier controller, a dehumidifier, an NMOS transistor, a temperature control switch, a unidirectional thyristor, and a heater. The humidity signal output terminal of the humidity sensor is connected to the humidity signal input terminal of the dehumidifier controller. The level output terminal of the dehumidifier controller is connected to the gate of the NMOS transistor. The dehumidifier and the NMOS transistor are connected in series in the same branch. The temperature control switch, the unidirectional thyristor, and the heater are connected in series in another branch. The control electrode of the unidirectional thyristor is connected to the branch where the dehumidifier is located.

2. The dehumidification control circuit for a liquid-cooled energy storage integrated system according to claim 1, characterized in that, It includes a battery and a PMOS transistor. The battery is connected in parallel with the power supply. The output terminal of the battery is connected to the source of the PMOS transistor, and the gate of the PMOS transistor is connected to the output terminal of the power supply.

3. The dehumidification control circuit for a liquid-cooled energy storage integrated system according to claim 2, characterized in that, The power output terminal is equipped with a diode, and the gate and drain of the PMOS transistor are connected to the two ends of the diode.

4. The dehumidification control circuit for a liquid-cooled energy storage integrated system according to claim 2, characterized in that, The gate of the PMOS transistor is connected to a voltage divider resistor.

5. A dehumidification control circuit for a liquid-cooled energy storage integrated system according to claim 1, characterized in that, The power source is an energy storage battery.

6. A liquid cooling system for an integrated energy storage system, characterized in that, The system includes a liquid cooler, a liquid cooling pipe, and a dehumidification control circuit as described in any one of claims 1-5. The energy storage integrated system includes several energy storage batteries, with the liquid cooling pipe located at the bottom of the energy storage batteries.

7. A liquid cooling system according to claim 6, characterized in that, The dehumidifier and heater are located on opposite sides of the energy storage battery.

8. A liquid-cooled energy storage integrated system, characterized in that, It includes several energy storage batteries and the liquid cooling system as described in claim 6 or 7.

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