Semiconductor refrigeration system

Abstract

The utility model discloses a semiconductor refrigeration system which comprises a cooling liquid circulation loop, a liquid storage pool which is used for monitoring the liquid level of cooling liquid and is convenient to add the cooling liquid is connected to the cooling liquid circulation loop in series, and cooling media are supplemented timely and conveniently without dismantling any pipeline or connector or even in a non-stop state. High heat transfer efficiency, small temperature fluctuation and operation safety and stability of the system are ensured; the transparent liquid storage pool and the liquid level window on the side wall are convenient for a user to directly observe the liquid level change in the loop; the liquid storage pool is provided with a first liquid level sensor, and when the liquid level is lower than a normal value, an alarm is given to remind liquid supplementation; a liquid adding opening of the liquid storage pool is closed through the exhaust valve to prevent external pollutants from entering, and pressure is released in advance during liquid adding to prevent a cooling medium from splashing; and when the limited liquid level is exceeded during liquid supplementation, the second liquid level sensor prompts to stop liquid supplementation in time, so that the leakage of the cooling medium is prevented, and the convenience and safety of liquid supplementation are improved.

Description

A semiconductor cooling system Technical Field

[0001] This utility model relates to a refrigeration device, and more particularly to a semiconductor refrigeration system. Background Technology

[0002] A semiconductor cooling system includes a cooling chip, a hot-end heat sink, a circulating pump, and liquid circulation pipes connecting these components. To improve heat transfer efficiency, reduce temperature fluctuations, lower noise, and prevent external contaminants from causing corrosion and wear inside the circulating liquid circuit, a fully enclosed liquid circuit system is generally used. During system operation, the liquid in the circulating liquid circuit is constantly heated. Despite the cooling system, liquid evaporation still occurs. Although the evaporation rate is slow, combined with natural leakage or malfunction leakage in the circuit, the liquid level in the circuit will inevitably decrease after prolonged operation. A reduction in the cooling medium in the liquid circuit will lead to decreased heat dissipation efficiency and poorer cooling effect. When the cooling medium decreases to a certain extent, it may also cause pump failure or damage to the semiconductor cooling chip, resulting in irreversible damage to the instrument. To avoid the aforementioned damage, when the liquid level in the liquid circuit decreases to a certain extent, it is necessary to add cooling medium to the circulating liquid circuit. However, for a fully enclosed liquid circuit system, it is not possible to visually determine the amount of cooling medium in the liquid circuit when the water pump is circulating. Furthermore, injecting liquid into a closed system requires disconnecting pipelines, which is troublesome and cumbersome. Slight mistakes can lead to leaks or even short circuits and burnouts in the instrument, which is inconvenient for users and detrimental to after-sales maintenance. Summary of the Invention

[0003] Purpose of the utility model: The purpose of this utility model is to facilitate timely replenishment of coolant in the coolant circulation loop of a fully enclosed semiconductor refrigeration system, and to provide a semiconductor refrigeration system that can monitor the coolant circulation loop level at any time and facilitate replenishment.

[0004] The present invention discloses a semiconductor refrigeration system, including a coolant circulation loop, wherein a reservoir for monitoring the coolant level and facilitating coolant addition is connected in series in the coolant circulation loop; the reservoir has a filling port at the top, an inlet at the bottom, and an outlet on the side wall, and is connected to the coolant circulation loop through the inlet and outlet; the reservoir is equipped with a first level sensor for monitoring the coolant level in the coolant circulation loop.

[0005] Furthermore, the first liquid level sensor is equipped with an alarm module to monitor the liquid level in the coolant circulation loop in real time. The first liquid level sensor is set at a position where the coolant in the loop decreases to the point that it affects the loop's operating performance. At this time, the first liquid level sensor issues an alarm to remind the user to replenish the coolant in the loop in a timely manner.

[0006] Furthermore, an exhaust valve is installed on the filling port to prevent liquid splashing caused by excessive pressure in the liquid circuit. Under normal circumstances, the filling port is closed. When the first liquid level sensor issues an alarm and liquid needs to be added, the exhaust valve is opened first to release the air, preventing liquid splashing caused by excessive pressure in the liquid circuit. In addition, by keeping the filling port closed by the exhaust valve, the stable operation of the coolant circulation loop can be ensured, while preventing external contaminants from entering the loop and causing pollution or damage.

[0007] Furthermore, the volume of the storage tank is 1 / 10 of the total volume of the coolant circulation loop, thereby ensuring the amount of cooling medium in the storage tank and ensuring the stable operation of the coolant circulation loop.

[0008] Furthermore, the first liquid level sensor is positioned at 1 / 3 to 1 / 2 of the volume of the liquid storage tank to ensure a suitable liquid level in the coolant circulation loop, thereby ensuring high heat transfer efficiency and low temperature fluctuation, while also reducing wear and noise inside the liquid path.

[0009] Furthermore, a second liquid level sensor is installed at 3 / 4 to 4 / 5 of the volume of the reservoir to prevent overflow due to excessive liquid addition. This second liquid level sensor also includes an alarm module that promptly alerts the user to stop adding liquid if the level exceeds a certain limit, preventing leakage of the cooling medium and improving the convenience and safety of liquid addition. The liquid volume difference between the first and second liquid level sensors is controlled within 100ml to 200ml to ensure stable operation of the coolant circulation loop after liquid addition.

[0010] Furthermore, the liquid storage tank is made of transparent material, preferably transparent acrylic material; a liquid level window is provided on the side wall of the liquid storage tank to facilitate regular inspection and observation of the liquid level in the circuit, and to prevent failure of the first liquid level sensor from failing to detect abnormalities in the liquid circuit in a timely manner.

[0011] Beneficial effects: Compared with the prior art, this utility model has the following advantages: 1. A transparent liquid storage tank is set in the circuit, allowing for timely and convenient replenishment of cooling medium without removing any pipelines or joints, or even without shutting down the system, ensuring high heat transfer efficiency, small temperature fluctuations, and safe and stable operation; 2. The transparent liquid storage tank and the liquid level window on the side wall allow users to directly observe changes in the liquid level in the circuit; 3. A first liquid level sensor is installed, which promptly issues an alarm to remind the user to replenish liquid when the liquid level is lower than the normal value; 4. The liquid inlet is sealed by an exhaust valve to prevent external contaminants from entering, and pressure is released in advance during liquid replenishment to prevent splashing of cooling medium; 5. When the liquid level exceeds the limit during replenishment, a second liquid level sensor promptly reminds the user to stop replenishing liquid, preventing leakage of cooling medium and improving the convenience and safety of liquid replenishment. Attached Figure Description

[0012] Figure 1 is a schematic diagram of the structure of this utility model;

[0013] Figure 2 is a schematic diagram of the liquid storage tank of this utility model. Detailed Implementation

[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0015] As shown in Figure 1, a semiconductor cooling system includes a cooling module 4 and a heat dissipation module 1, which are connected together by a coolant circulation loop 3. The coolant circulation loop 3 is equipped with a water pump and a reservoir 5 for monitoring the coolant level and facilitating coolant addition. As shown in Figure 2, the reservoir 5 is made of a transparent material, such as acrylic. The reservoir 5 has a filling port 5-3 at the top, an inlet port 5-1 at the bottom, and an outlet port 5-2 on its side wall. The reservoir 5 is connected to the coolant circulation loop 3 through the inlet port 5-1 and the outlet port 5-2. A level window 5-6 is provided on the side wall of the reservoir 5. The volume of the reservoir 5 is 1 / 10 of the total volume of the coolant circulation loop. The volume of the reservoir 5 should not be too large. A first level sensor 5-4 is installed at 1 / 3 of the reservoir 5's volume to monitor the coolant level in the circulation loop 3. The first level sensor 5-4 controls the coolant level in the circulation loop and includes an alarm module. When the level falls below a set value, an alarm is triggered to remind the user to replenish coolant and ensure the normal operation of the coolant circulation loop 3. This ensures high heat transfer efficiency, low temperature fluctuations, and reduces wear and noise within the circulation loop. To guarantee high heat transfer efficiency and low temperature fluctuations, the first level sensor 5-4 can be installed at 1 / 3 to 1 / 2 of the reservoir 5's volume. An exhaust valve is installed on the filler port 5-3 to prevent excessive pressure from causing liquid splashing. Under normal circumstances, the filler port 5-3 is closed to prevent external contaminants from entering the coolant circulation loop. When coolant needs to be added, the valve can be opened. First, open the vent valve to release air and prevent excessive pressure in the liquid circuit from causing liquid splashing. After the air pressure stabilizes, open the filler port 5-3 to add coolant. A second liquid level sensor 5-5 is installed at 3 / 4 of the volume of the reservoir 5 to prevent overfilling and overflow. The second liquid level sensor 5-5 is also equipped with an alarm module. When the liquid level reaches the limit, an alarm will sound to remind personnel to stop adding liquid to prevent overfilling from causing instability in the coolant circulation loop 3 or coolant leakage. After the injection is completed, tighten the vent valve to close the filler port 5-3. In order to ensure the stability of the coolant circulation loop 3 and the convenience and safety of adding coolant, the installation position of the second liquid level sensor 5-5 can be set at 3 / 4 to 4 / 5 of the volume of the reservoir 5. At the same time, the liquid volume difference between the first liquid level sensor 5-4 and the second liquid level sensor 5-5 is controlled within 100ml to 200ml to ensure that the coolant circulation loop can operate stably after replenishment.

[0016] During the operation of the semiconductor refrigeration system, the first liquid level sensor 5-4 monitors the amount of cooling medium in the coolant circulation loop 3 in real time. When the level falls below the normal operating range, an alarm is issued to remind the user to replenish the cooling medium in time. At this time, the vent valve is first opened to balance the pressure inside and outside the loop, preventing the hot cooling medium inside from splashing and causing injury and contamination. After the pressure is balanced, the filler port 5-3 is opened to add cooling medium to the reservoir 5. When the preset value is reached, the second liquid level sensor 5-5 issues an alarm to remind the user to stop the replenishment operation to prevent the cooling medium from overflowing.

Claims

1. A semiconductor refrigeration system comprising a coolant circulation circuit (3), characterized in that, A reservoir (5) for monitoring the coolant level and facilitating coolant addition is connected in series on the coolant circulation loop (3); the reservoir (5) has a filling port (5-3) at the top, an inlet port (5-1) at the bottom, and an outlet port (5-2) on the side wall, and is connected to the coolant circulation loop (3) through the inlet port (5-1) and the outlet port (5-2); the reservoir (5) is equipped with a first level sensor (5-4) for monitoring the coolant level in the coolant circulation loop.

2. The semiconductor cooling system according to claim 1, characterized in that, An exhaust valve is provided on the liquid inlet (5-3) to prevent liquid from splashing due to excessive liquid pressure.

3. The semiconductor cooling system according to claim 1, characterized in that, The volume of the liquid storage tank (5) is 1 / 10 of the total volume of the coolant circulation loop.

4. The semiconductor cooling system according to claim 2, characterized in that, The first liquid level sensor (5-4) is located at 1 / 3 to 1 / 2 of the volume of the liquid storage tank (5).

5. The semiconductor cooling system according to claim 2, characterized in that, A second liquid level sensor (5-5) is installed at 3 / 4 to 4 / 5 of the volume of the liquid storage tank (5) to prevent overflow due to excessive liquid addition.

6. The semiconductor cooling system according to claim 1, characterized in that, The liquid storage tank (5) is made of transparent material.

7. The semiconductor refrigeration system of claim 1, wherein, The liquid storage tank (5) is provided with liquid level windows (5-6) on its side wall.

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