Water tank of liquid cooling system

By employing a liquid level sensor with a measuring cylinder and float structure in the liquid cooling system water tank, the problem of inaccurate liquid level monitoring in existing coolant water tanks has been solved, achieving high-precision and stable liquid level measurement, and reducing equipment failure risk and maintenance costs.

CN224151266UActive Publication Date: 2026-04-21GUANGDONG HIWAVE TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG HIWAVE TECH
Filing Date
2025-04-08
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing coolant tank level monitoring devices are complex to install, susceptible to environmental interference, and prone to inaccurate measurements, affecting system control precision and increasing maintenance costs.

Method used

The liquid level sensor adopts a measuring cylinder and float structure. The connecting rod and float are located inside the measuring chamber. Combined with the limiting ring and anti-surge plate, the influence of coolant flow is reduced, and the measurement accuracy and stability are enhanced.

Benefits of technology

It improves the accuracy and stability of liquid level measurement, reduces the risk of equipment failure, simplifies the installation process, and reduces maintenance difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of water tanks, in particular to a liquid cooling system water tank which comprises a tank body. A liquid storage cavity is formed in the box body; a measuring cylinder is arranged in the liquid storage cavity along the height direction; a measuring cavity is arranged in the measuring cylinder along the height direction; the measuring cavity is communicated with the liquid storage cavity; the liquid cooling system water tank further comprises a liquid level sensor. The liquid level sensor comprises a sensing part, a connecting rod connected with the sensing part and a floating ball arranged on the connecting rod in a sliding mode. And the connecting rod and the floating ball are arranged in the measuring cavity. According to the utility model, the connecting rod of the liquid level sensor and the floating ball are arranged in the measuring cavity of the measuring cylinder, so that the influence on the liquid level sensor when cooling liquid flows or shakes can be reduced, and the measuring precision is high; in addition, the measuring cylinder is arranged in the liquid storage cavity, so that the overall occupied area can be reduced, and the measuring cylinder can be protected.
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Description

Technical Field

[0001] This utility model relates to the field of water tank technology, specifically to a water tank for a liquid cooling system. Background Technology

[0002] In various systems involving liquid cooling, the coolant tank plays a crucial role. It is responsible for storing and supplying coolant to ensure the stable operation of the system. The existing coolant tank structures are generally simple and cannot meet the increasingly complex operating conditions.

[0003] In the crucial aspect of liquid level monitoring, many water tanks utilize photoelectric liquid level sensors. However, these sensors have revealed numerous drawbacks in practical applications. Their installation process is extremely complex, requiring precise calibration and demanding a high level of expertise from installers. Furthermore, they are highly sensitive to environmental conditions, reacting strongly to changes in ambient light; fluctuations in external light can easily interfere with the sensor signal, leading to measurement inaccuracies. Moreover, photoelectric liquid level sensors require extremely precise installation positioning; even slight deviations can prevent accurate detection of the coolant level. Under various operating conditions, such as vibrations from equipment operation, significant changes in coolant temperature, and unstable system pressure, the sensor cannot accurately reflect the true coolant level within the tank. This inaccurate liquid level monitoring severely hinders precise system control. Failure to detect abnormal liquid levels in a timely manner can lead to insufficient cooling and equipment malfunctions, and also significantly complicates daily system maintenance, increasing maintenance costs and difficulty. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by providing a water tank for a liquid cooling system.

[0005] The objective of this utility model is achieved through the following technical solution: a water tank for a liquid cooling system, comprising a tank body; a liquid storage chamber is provided inside the tank body; a measuring cylinder is provided along the height direction inside the liquid storage chamber; a measuring cavity is provided along the height direction inside the measuring cylinder; the measuring cavity is connected to the liquid storage chamber;

[0006] The liquid cooling system water tank also includes a liquid level sensor; the liquid level sensor includes a sensing part, a connecting rod connected to the sensing part, and a float slidably disposed on the connecting rod; the connecting rod and the float are both disposed in the measuring cavity.

[0007] The present invention is further configured such that a limiting ring is provided at the bottom of the measuring cylinder; the limiting ring is provided with a limiting hole; and the bottom of the connecting rod is provided at the limiting hole.

[0008] The present invention is further configured such that the side wall of the measuring cylinder is provided with a plurality of through holes along the height direction.

[0009] The present invention is further configured such that the box body includes an outer shell and an inner liner disposed within the outer shell; the liquid storage chamber is disposed within the inner liner.

[0010] The present invention is further configured such that a foam layer is filled between the outer shell and the inner liner.

[0011] The present invention is further configured such that a connecting sleeve is provided between the outer shell and the inner liner; the sensing part is detachably connected to the connecting sleeve; and the connecting rod protrudes into the measuring cavity through the connecting sleeve.

[0012] The present invention is further configured such that a wave-damping plate is provided inside the liquid storage cavity; the wave-damping plate is connected to the inner wall of the liquid storage cavity.

[0013] The present invention is further configured such that the wave-damping plate is provided with multiple through holes.

[0014] The present invention is further configured such that the wave-breaking plate is arranged in a cross shape.

[0015] The present invention is further configured such that the liquid storage chamber is provided with a return pipe; the outlet of the return pipe is located at the top of the wave deflector, so that the coolant from the outlet falls into the center of the wave deflector.

[0016] The beneficial effects of this utility model are as follows: By setting the connecting rod and float of the liquid level sensor in the measuring cavity of the measuring cylinder, this utility model can reduce the influence of coolant flow or sloshing on the liquid level sensor, resulting in high measurement accuracy; in addition, by setting the measuring cylinder in the liquid storage cavity, the overall footprint can be reduced, and the measuring cylinder can be protected. Attached Figure Description

[0017] The utility model will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present utility model. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0021] Figure 4 This is a cross-sectional view of the present invention from another perspective;

[0022] The components are: 1. Housing; 11. Outer shell; 12. Inner liner; 2. Liquid storage chamber; 3. Measuring cylinder; 31. Measuring cavity; 32. Limiting ring; 33. Limiting hole; 34. Connecting hole; 4. Liquid level sensor; 41. Sensing part; 42. Connecting rod; 43. Float; 5. Connecting sleeve; 6. Anti-surge plate; 61. Perforation; 7. Return pipe. Detailed Implementation

[0023] The present invention will be further described in conjunction with the following embodiments.

[0024] Depend on Figures 1 to 4 As can be seen, the liquid cooling system water tank described in this embodiment includes a tank body 1; a liquid storage chamber 2 is provided inside the tank body 1; a measuring cylinder 3 is provided inside the liquid storage chamber 2 along the height direction; a measuring cavity 31 is provided inside the measuring cylinder 3 along the height direction; the measuring cavity 31 is connected to the liquid storage chamber 2.

[0025] The liquid cooling system water tank also includes a liquid level sensor 4; the liquid level sensor 4 includes a sensing part 41, a connecting rod 42 connected to the sensing part 41, and a float 43 slidably disposed on the connecting rod 42; the connecting rod 42 and the float 43 are both disposed in the measuring cavity 31.

[0026] Specifically, in this embodiment, the liquid cooling system water tank has a measuring cylinder 3 installed inside the liquid storage chamber 2. The measuring chamber 31 inside the measuring cylinder 3 is connected to the liquid storage chamber 2, so that the liquid level in the liquid storage chamber 2 is the same as the liquid level in the measuring chamber 31. Furthermore, by setting the connecting rod 42 and the float 43 inside the measuring chamber 31, the liquid level in the water tank is accurately measured by the height of the float 43. In this embodiment, by setting the connecting rod 42 and the float 43 of the liquid level sensor 4 inside the measuring chamber 31 of the measuring cylinder 3, the influence of coolant flow or sloshing on the liquid level sensor 4 can be reduced, resulting in high measurement accuracy. In addition, by setting the measuring cylinder 3 inside the liquid storage chamber 2, the overall footprint can be reduced, and the measuring cylinder 3 can be protected.

[0027] In this embodiment, a water tank for a liquid cooling system is provided with a limiting ring 32 at the bottom of the measuring cylinder 3; the limiting ring 32 is provided with a limiting hole 33; and the bottom of the connecting rod 42 is located at the limiting hole 33.

[0028] Specifically, in the liquid cooling system water tank described in this embodiment, there is a gap between the bottom of the connecting rod 42 and the limiting hole 33, which is conducive to the flow of coolant and restricts the range of motion of the connecting rod 42, thereby reducing the shaking of the connecting rod 42.

[0029] In this embodiment, a liquid cooling system water tank has multiple through holes 34 extending along the height direction on the side wall of the measuring cylinder 3. This arrangement ensures that the liquid level in the storage chamber 2 is the same as the liquid level in the measuring chamber 31. Even when the total amount of coolant in the storage chamber 2 changes dynamically during operation, the liquid level in the storage chamber 2 and the liquid level in the measuring chamber 31 remain consistent in the shortest possible time.

[0030] This embodiment describes a liquid cooling system water tank, wherein the tank body 1 includes an outer shell 11 and an inner liner 12 disposed within the outer shell 11; the liquid storage chamber 2 is disposed within the inner liner 12. The double-layer structure formed by the outer shell 11 and the inner liner 12 effectively enhances the strength of the tank body 1; furthermore, both the outer shell 11 and the inner liner 12 can be made of 304 stainless steel, thus possessing excellent corrosion resistance and being able to resist the erosion of chemicals in the coolant for a long time.

[0031] In this embodiment, a liquid cooling system water tank is provided, wherein a foamed layer (such as polyurethane PU, polystyrene PS, polyethylene PE, and polypropylene PP) is filled between the outer shell 11 and the inner liner 12. The foamed layer is not shown in the figure. This embodiment uses a foamed layer between the outer shell 11 and the inner liner 12 for insulation and sealing, giving the tank 1 good insulation and sealing performance.

[0032] In this embodiment, a liquid cooling system water tank includes a connecting sleeve 5 between the outer shell 11 and the inner liner 12. The sensing part 41 is detachably connected to the connecting sleeve 5. The connecting rod 42 protrudes into the measuring cavity 31 through the connecting sleeve 5. With this configuration, the sensing part 41 at the top of the connecting rod 42 is detachably connected to the connecting sleeve 5, and the bottom of the connecting rod 42 is located at the limiting hole 33, thereby ensuring the structural stability and reliability of the liquid level sensor 4 and enhancing the measurement accuracy. Furthermore, the detachable connection between the sensing part 41 and the connecting sleeve 5 facilitates the assembly and disassembly of the liquid level sensor 4.

[0033] This embodiment describes a liquid cooling system water tank, in which a baffle plate 6 is provided inside the liquid storage chamber 2; the baffle plate 6 is connected to the inner wall of the liquid storage chamber 2. Specifically, by setting the baffle plate 6, this embodiment can effectively reduce the impact caused by coolant sloshing during the transportation of the unit, while enhancing the overall pressure resistance of the tank body 1, thereby enhancing the stability of the unit; in addition, the baffle plate 6 can be made of 304 stainless steel, further improving the overall strength of the liquid cooling system water tank, while also having excellent corrosion resistance, and can resist the erosion of chemical substances in the coolant for a long time.

[0034] In the liquid cooling system water tank described in this embodiment, the wave deflector 6 is provided with multiple through holes 61. This arrangement ensures that the coolant in the liquid storage chamber 2 can be evenly distributed.

[0035] In this embodiment, a liquid cooling system water tank is provided, wherein the wave deflector 6 is arranged in a cross shape. This arrangement further improves the overall strength of the liquid cooling system water tank.

[0036] In this embodiment, a liquid cooling system water tank is described, wherein the liquid storage chamber 2 is equipped with a return pipe 7; the outlet of the return pipe 7 is located at the top of the baffle plate 6, so that the coolant exiting the outlet falls into the center of the baffle plate 6. Specifically, since the liquid cooling system water tank uses a cross-shaped baffle plate 6 to reduce the impact of coolant sloshing during the transportation of the unit, the liquid storage chamber 2 is divided into four chambers; in order to ensure uniform coolant temperature in the liquid storage chamber 2, the outlet of the return pipe 7 is located at the top of the baffle plate 6, so that the coolant exiting the outlet of the return pipe 7 falls exactly into the center of the cross-shaped baffle plate 6 at a certain flow rate, allowing the return liquid to enter the four chambers evenly, thereby improving the operating accuracy and stability of the unit.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A liquid cooling system water tank, characterized by: It includes a housing (1); the housing (1) is provided with a liquid storage chamber (2); the liquid storage chamber (2) is provided with a measuring cylinder (3) along the height direction; the measuring cylinder (3) is provided with a measuring cavity (31) along the height direction; the measuring cavity (31) is connected to the liquid storage chamber (2); The liquid cooling system water tank also includes a liquid level sensor (4); the liquid level sensor (4) includes a sensing part (41), a connecting rod (42) connected to the sensing part (41), and a float (43) slidably disposed on the connecting rod (42); the connecting rod (42) and the float (43) are both disposed in the measuring cavity (31).

2. The liquid cooling system water tank of claim 1, wherein: The bottom of the measuring cylinder (3) is provided with a limiting ring (32); the limiting ring (32) is provided with a limiting hole (33); the bottom of the connecting rod (42) is provided at the limiting hole (33).

3. The liquid cooling system water tank of claim 1, wherein: The measuring cylinder (3) has multiple connecting holes (34) extending through its sidewall along the height direction.

4. The liquid cooling system water tank of claim 1, wherein: The box (1) includes an outer shell (11) and an inner liner (12) disposed inside the outer shell (11); the liquid storage chamber (2) is disposed inside the inner liner (12).

5. The liquid cooling system water tank of claim 4, wherein: A foam layer is filled between the outer shell (11) and the inner liner (12).

6. The liquid cooling system water tank of claim 4, wherein: A connecting sleeve (5) is provided between the outer shell (11) and the inner liner (12); the sensing part (41) is detachably connected to the connecting sleeve (5); the connecting rod (42) protrudes into the measuring cavity (31) through the connecting sleeve (5).

7. The liquid cooling system water tank of claim 1, wherein: The liquid storage chamber (2) is provided with a wave deflector (6); the wave deflector (6) is connected to the inner wall of the liquid storage chamber (2).

8. The liquid cooling system water tank of claim 7, wherein: The wave deflector (6) has multiple through holes (61).

9. The liquid cooling system water tank of claim 7, wherein: The wave deflector (6) is arranged in a cross shape.

10. The liquid cooling system water tank of claim 9, wherein: The liquid storage chamber (2) is provided with a return pipe (7); the outlet of the return pipe (7) is located at the top of the wave deflector (6) so that the coolant from the outlet falls into the center of the wave deflector (6).