Liquid leakage prevention electric valve control circuit of liquid cooling system
By using an electric supply and return valve and a supercapacitor control circuit in the liquid cooling system, the problem of insufficient sealing of the liquid cooling system was solved, ensuring sealing performance in the event of a power outage and reducing operating and maintenance costs.
Patent Information
- Application Number
- CN202520536889.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Existing liquid cooling systems are inadequate in terms of sealing and sealing in case of emergency power failure, which can easily lead to coolant leakage, increasing operating costs and maintenance difficulty.
An electric supply and return valve and a supercapacitor are used as emergency power sources. The main control board controls the opening and closing of the electric supply and return valve. The system's sealing is ensured by a unidirectional conduction component and a feedback line. The supercapacitor continues to supply power to drive the valve to close when the power board is powered off.
It improves the sealing stability of the liquid cooling system, prevents coolant leakage, reduces the system's operating costs and maintenance difficulty, and ensures the system's normal operation in the event of a power outage.
Smart Images
Figure CN223754762U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to liquid cooling system technical field, concretely relates to a kind of leakage-proof electric valve control circuit of liquid cooling system. BACKGROUND
[0002] In the field of high-power heat-dissipating equipment, with the continuous progress of science and technology, various high-power equipment such as large data center servers, high-performance electric vehicle charging piles are widely used. In the face of the large amount of heat generated by such equipment, the traditional air cooling technology has been difficult to meet the heat dissipation temperature control requirements.
[0003] Therefore, to meet the heat dissipation requirements of high-power equipment, additional liquid cooling system becomes a common solution. In terms of system sealing, existing liquid cooling technology mostly uses quick connectors with self-locking function or single power electric liquid supply valves for mechanical sealing to prevent cooling liquid leakage and ensure normal operation of the system.
[0004] However, the existing liquid cooling technology has many significant problems. First, the cleanliness requirement is extremely high. For example, the cooling medium used in the battery cooling system is extremely susceptible to maintenance conditions and use environment. In actual use, it is difficult to always ensure that the cooling medium meets the specified cleanliness requirement. Once the cleanliness problem occurs, the mechanical self-locking sealing device is likely to be stuck, which may cause sealing failure and lead to cooling liquid leakage.
[0005] Second, the refrigerant is prone to deterioration. When the liquid cooling system unit suddenly loses power, the electric valve fails to automatically close, or the mechanical self-locking seal appears a slight leak or even fails, the commonly used refrigerant medium (such as ethylene glycol) is prone to volatilization. The stability of the volatilized working medium is poor, and the freezing point is high, which seriously affects the anti-freezing performance of the water system. To ensure normal operation of the system, the refrigerant must be frequently replaced, which further increases the operating cost and maintenance difficulty. INVENTION CONTENTS
[0006] The utility model aims at the above-mentioned deficiencies in the prior art, and provides a leakage-proof electric valve control circuit for a liquid cooling system.
[0007] The utility model aims to achieve the following technical solutions: a leakage-proof electric valve control circuit for a liquid cooling system, comprising a main control board, a power supply, a power supply board, an energy storage device, and an electric liquid supply and return valve.
[0008] The input end of the power supply board is connected with the power supply; the output end of the power supply board is used to power the main control board and the energy storage device; and the main control board is used to control the on-off of the electric liquid supply and return valve.
[0009] The main control board and the power supply board are in communication connection.
[0010] The energy storage device is used to supply power to the main control board when the power panel stops working.
[0011] The utility model further provides for, the output of power panel is equipped with one-way conducting component, the output of power panel respectively through one-way conducting component supplies power board and energy storage device for main control board.
[0012] The utility model further provides for, one-way conducting component is rectifier bridge.
[0013] The utility model further provides for, communication line is equipped between main control board and power panel, main control board is communicated with power panel through communication line.
[0014] The utility model further provides for, energy storage device is super capacitor.
[0015] The utility model further provides for, supply line is equipped between main control board and electric supply and return liquid valve, main control board supplies power for electric supply and return liquid valve through supply line.
[0016] The utility model further provides for, control line is equipped between main control board and electric supply and return liquid valve, main control board controls the on-off of electric supply and return liquid valve through control line.
[0017] The utility model further provides for, feedback line is equipped between main control board and electric supply and return liquid valve, electric supply and return liquid valve feed back state for main control board through feedback line.
[0018] The utility model has the advantages that the utility model seals by setting electric supply and return liquid valve, compared with mechanical lock, can guarantee the stability of liquid cooling system sealing, in addition, by setting energy storage device as emergency power supply, can continue to supply power for main control board under the condition of power panel power failure, to drive electric supply and return liquid valve to close, guarantee the sealing property of system. BRIEF DESCRIPTION OF DRAWINGS
[0019] The utility model is further explained by using the drawings, but the embodiment in the drawings does not constitute any limitation to the utility model, and other drawings can be obtained according to the following drawings without the creative labor of the ordinary skill in the art.
[0020] Figure 1 It is the circuit schematic diagram of the utility model,
[0021] Wherein: 1, main control board, 2, power supply, 3, power panel, 4, energy storage device, 5, electric supply and return liquid valve, 6, one-way conducting component, 7, communication line, 81, supply line, 82, control line, 83, feedback line. DETAILED DESCRIPTION
[0022] The utility model is further described in combination with the following embodiments.
[0023] By Figure 1 It can be known that the liquid leakage prevention electric valve control circuit of the liquid cooling system comprises a main control board 1, a power supply 2, a power board 3, an energy storage device 4, and an electric liquid supply and return valve 5.
[0024] The input end of the power board 3 is connected with the power supply 2; the output end of the power board 3 is used for supplying power to the main control board 1 and the energy storage device 4; and the main control board 1 is used for controlling the on-off of the electric liquid supply and return valve 5.
[0025] The main control board 1 is in communication connection with the power board 3.
[0026] The energy storage device 4 is used for supplying power to the main control board 1 when the power board 3 stops working.
[0027] Specifically, under normal circumstances, the liquid leakage prevention electric valve control circuit of the liquid cooling system supplies power to the main control board 1 and the energy storage device 4 simultaneously through the power board 3; in the case that the electric liquid supply and return valve 5 is opened and the power board 3 is suddenly powered off, the energy storage device 4 continues to supply power to the main control board 1, and the main control board 1 can also identify the communication failure of the power board 3, that is, the power board 3 does not work, and the whole machine is in a power-off state, then the main control board 1 outputs a valve closing signal to the electric liquid supply and return valve 5, and the electric liquid supply and return valve 5 is closed.
[0028] In the embodiment, the electric liquid supply and return valve 5 is arranged to seal, compared with a mechanical lock, the stability of the sealing of the liquid cooling system can be ensured; in addition, the energy storage device 4 is arranged as an emergency power supply, in the case that the power board 3 is powered off, the energy storage device 4 continues to supply power to the main control board 1, so as to drive the electric liquid supply and return valve 5 to be closed, and the sealing property of the system is ensured.
[0029] The liquid leakage prevention electric valve control circuit of the liquid cooling system comprises a unidirectional conduction assembly 6 arranged at the output end of the power board 3; and the output end of the power board 3 supplies power to the main control board 1 and the energy storage device 4 through the unidirectional conduction assembly 6. Specifically, through the above arrangement, the reverse power supply of the energy storage device 4 to the power board 3 can be prevented when the power board 3 is powered off, so as to prevent the damage of the power board 3.
[0030] The unidirectional conduction assembly 6 is a rectifier bridge. Through the above arrangement, the rectification function is realized while preventing the reverse power supply of the energy storage device 4 to the power board 3.
[0031] The liquid cooling system leak-proof electric valve control circuit, the main control board 1 and the power board 3 are equipped with the communication line 7, the main control board 1 is communicated with the power board 3 through the communication line 7, the main control board 1 can detect the working state of the power board 3 in real time through the above setting.
[0032] The liquid cooling system leak-proof electric valve control circuit, the energy storage device 4 is a super capacitor, the super capacitor can be charged in a short time, and the super capacitor charging and discharging cycle can be up to hundreds of thousands of times, and has the advantages of long service life, and the super capacitor can release a large amount of energy in a short time, and meet the demand of some equipment for instantaneous high power.
[0033] The liquid cooling system leak-proof electric valve control circuit, the main control board 1 and the electric liquid supply and return valve 5 are equipped with the power supply line 81, and the main control board 1 supplies power to the electric liquid supply and return valve 5 through the power supply line 81, so that the main control board 1 can supply power to the electric liquid supply and return valve 5.
[0034] The liquid cooling system leak-proof electric valve control circuit, the main control board 1 and the electric liquid supply and return valve 5 are equipped with the control line 82, and the main control board 1 controls the on-off of the electric liquid supply and return valve 5 through the control line 82, so that the main control board 1 can control the on-off of the electric liquid supply and return valve 5.
[0035] The liquid cooling system leak-proof electric valve control circuit, the main control board 1 and the electric liquid supply and return valve 5 are equipped with the feedback line 83, and the electric liquid supply and return valve 5 feeds back the state to the main control board 1 through the feedback line 83, so that the electric liquid supply and return valve 5 can feed back the position state of the electric liquid supply and return valve 5 to the main control board 1 through the feedback line 83 after the valve of the electric liquid supply and return valve 5 is closed, to ensure that the electric liquid supply and return valve 5 is completely closed.
[0036] Finally, it should be explained that the above embodiments are only used to illustrate the technical scheme of the utility model, and not to limit the protection scope of the utility model, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical scheme of the utility model can be modified or replaced equivalently without departing from the essence and scope of the technical scheme of the utility model.
Claims
1. A leak-proof electric valve control circuit for a liquid cooling system, comprising: The main control board (1), the power supply (2), the power board (3), the energy storage device (4) and the electric liquid supply and return valve (5) are included. The input end of the power board (3) is connected with the power supply (2); the output end of the power board (3) is used for supplying power to the main control board (1) and the energy storage device (4); the main control board (1) is used for controlling the on-off of the electric liquid supply and return valve (5). The main control board (1) is in communication connection with the power board (3). The energy storage device (4) is used for supplying power to the main control board (1) when the power board (3) stops working.
2. The leak-proof electric valve control circuit of a liquid cooling system according to claim 1, wherein: The output end of the power board (3) is provided with a one-way conduction assembly (6); the output end of the power board (3) supplies power to the main control board (1) and the energy storage device (4) through the one-way conduction assembly (6) respectively.
3. The leak-proof electric valve control circuit of a liquid cooling system according to claim 2, wherein: The one-way conduction assembly (6) is a rectifier bridge.
4. The leak-proof electric valve control circuit of a liquid cooling system according to claim 1, wherein: The main control board (1) and the power board (3) are provided with a communication line (7); the main control board (1) is in communication connection with the power board (3) through the communication line (7).
5. The leak-proof electric valve control circuit of a liquid cooling system according to claim 1, wherein: The energy storage device (4) is a super capacitor.
6. The leak-proof electric valve control circuit of a liquid cooling system according to claim 1, wherein: The main control board (1) and the electric liquid supply and return valve (5) are provided with a power supply line (81); the main control board (1) supplies power to the electric liquid supply and return valve (5) through the power supply line (81).
7. The leak-proof electric valve control circuit of a liquid cooling system according to claim 1, wherein: The main control board (1) and the electric liquid supply and return valve (5) are provided with a control line (82); the main control board (1) controls the on-off of the electric liquid supply and return valve (5) through the control line (82).
8. The leak-proof electric valve control circuit of a liquid cooling system according to claim 1, wherein: The main control board (1) and the electric liquid supply and return valve (5) are provided with a feedback line (83); the electric liquid supply and return valve (5) feeds back the state to the main control board (1) through the feedback line (83).