Liquid supplementing device and energy storage cabinet

Abstract

The utility model provides a liquid supplementing device and an energy storage cabinet, the liquid supplementing device comprises a shell, a liquid discharging assembly, a sensor and a control device, the shell is provided with a containing part, a liquid storage box is arranged in the containing part, the liquid discharging assembly is arranged in the shell, one end of the liquid discharging assembly is connected with the liquid storage box, the other end of the liquid discharging assembly is used for being connected with a liquid cooling assembly, and the sensor is connected with the liquid cooling assembly. The sensor is arranged corresponding to the liquid cooling assembly so as to detect whether the liquid cooling assembly is lack of cooling liquid, the control device is connected with the sensor and the liquid discharging assembly, and the control device receives a signal of the sensor and controls the working state of the liquid discharging assembly, so that when the liquid cooling assembly is lack of cooling liquid, the liquid discharging assembly is started to discharge the cooling liquid. The liquid storage tank supplies liquid to the liquid cooling assembly. In this way, the liquid supplementing device can automatically supplement liquid for the liquid cooling assembly, and the liquid supplementing efficiency of the liquid supplementing device for the liquid cooling assembly is effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of energy storage cabinets, and in particular to a liquid replenishment device and an energy storage cabinet. Background Technology

[0002] An energy storage cabinet is an energy storage device that houses packaged battery packs. It plays a crucial role in situations where electricity is urgently needed and is primarily used in scenarios with high power loads or sudden power outages, such as power generation, power grids, and residential users. Due to the large number of batteries installed, battery charging and discharging, and solar radiation, energy storage cabinets often suffer from poor ventilation and heat dissipation. Therefore, energy storage cooling units are required to prevent these issues.

[0003] However, in existing technologies, liquid cooling units for energy storage mostly rely on manual replenishment, which requires a series of manual operations and takes a long time. This makes replenishment inconvenient during subsequent research and development, debugging, and product operation, which to some extent affects experimental testing and limits the application scenarios and customer needs of the products. Utility Model Content

[0004] This application provides a liquid replenishment device to solve the problem of low liquid replenishment efficiency for liquid cooling components in the prior art.

[0005] To address the aforementioned technical problems, this application provides a liquid replenishment device, comprising: a housing having a receiving portion and a liquid storage tank disposed within the receiving portion; a drain assembly disposed within the housing, one end of which is connected to the liquid storage tank and the other end of which is connected to a liquid cooling assembly; a sensor disposed corresponding to the liquid cooling assembly to detect whether the liquid cooling assembly lacks coolant; and a control device connected to the sensor and the drain assembly, wherein the control device receives signals from the sensor and controls the operating state of the drain assembly so that when the liquid cooling assembly lacks coolant, the liquid storage tank supplies coolant to the liquid cooling assembly.

[0006] The housing includes a first housing and a second housing, which are detachably connected to form a receiving portion.

[0007] The drainage assembly includes a water pump and a drainage pipe. One end of the water pump is connected to the storage tank through a pipeline, and the other end of the water pump is connected to the drainage pipe.

[0008] The liquid storage tank is equipped with a liquid inlet, which is connected to a liquid inlet pipe. The liquid inlet pipe is at least partially exposed on the outside of the first housing. The liquid storage tank is also equipped with a liquid outlet, which is connected to a water pump via a pipeline and is located at the bottom of the liquid storage tank.

[0009] The liquid replenishment device also includes a sight tube, which includes a first part and a second part. The first part of the sight tube extends along a first direction, and the second part of the sight tube extends along a second direction. The first direction and the second direction intersect. A slot is provided on the side wall of the first housing. The second part of the sight tube is fitted into the slot, and the first part of the sight tube is connected to the liquid storage tank.

[0010] The sight glass is equipped with a liquid level sensor inside the section corresponding to the slot opening.

[0011] The inlet pipe is detachably connected to a cover.

[0012] The sensor is a pressure sensor, used to collect the pressure of the coolant in the liquid cooling assembly.

[0013] The second housing has several through holes, and the inner wall of the first housing has at least one limiting member. The limiting member is detachably connected to the first housing, and the liquid storage tank is clamped and fixed by the first housing and the limiting member.

[0014] To address the aforementioned issues, this application also provides an energy storage cabinet, comprising: a liquid replenishment device, wherein the liquid replenishment device is any of the liquid replenishment devices described above.

[0015] The beneficial effects of this application are as follows: Unlike the prior art, this application sets up a drain assembly that communicates with the liquid storage tank inside the housing, connects the liquid cooling assembly to the other end of the drain assembly, sets up a sensor corresponding to the liquid cooling assembly, and couples the control device with the drain assembly and the sensor. It can detect whether there is a lack of coolant in the liquid cooling assembly through the sensor and control the working state of the drain assembly, so that the liquid replenishment device can automatically replenish the liquid cooling assembly, effectively improving the liquid replenishment efficiency of the liquid replenishment device for the liquid cooling assembly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the exploded view of the fluid replenishment device in this application;

[0017] Figure 2 This is a schematic diagram of the connection between the liquid replenishment device and the liquid cooling assembly in this application;

[0018] Figure 3 This is a structural schematic diagram of the side view of the fluid replenishment device of this application;

[0019] Figure 4 This is a structural schematic diagram of the fluid replenishment device from another perspective. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0023] Please see Figure 1 , Figure 1 This is a structural schematic diagram of the exploded view of the fluid replenishment device provided in this application.

[0024] This application provides a fluid replenishment device. For example... Figure 1 As shown, the liquid replenishment device of this embodiment includes: a housing 10, a drain assembly 30, a sensor (not shown), and a control device (not shown). The housing 10 has a receiving portion 101, and a liquid storage tank 20 is disposed within the receiving portion 101. (In conjunction with...) Figure 2 As shown, the drain assembly 30 is disposed within the housing 10, with one end connected to the liquid storage tank 20 and the other end connected to the liquid cooling assembly 90. A sensor is installed corresponding to the liquid cooling assembly 90 to detect whether the liquid cooling assembly 90 is lacking coolant. A control device is connected to the sensor and the drain assembly 30. The control device receives signals from the sensor and controls the operating state of the drain assembly 30 so that when the liquid cooling assembly 90 is lacking coolant, the liquid storage tank 20 supplies coolant to the liquid cooling assembly 90. The coolant is a 50% ethylene glycol aqueous solution.

[0025] In an optional embodiment, a receiving portion 101 is formed on the housing 10, a liquid storage tank 20 is disposed within the receiving portion 101, and a drain assembly 30 is disposed inside the housing 10 near the liquid storage tank 20. One end of the drain assembly 30 is connected to the liquid storage tank 20, and the other end is used to connect to the liquid cooling assembly 90. When the liquid cooling assembly 90 is short of coolant, coolant can be transferred to the liquid cooling assembly 90 through the drain assembly 30, that is, the drain assembly 30 draws coolant from the storage tank and transfers it into the liquid cooling assembly 90. In order to monitor whether the liquid cooling assembly 90 is low on coolant in real time, a sensor is installed in the liquid cooling assembly 90. The sensor can detect whether the liquid cooling assembly 90 is low on coolant. If the sensor detects that the liquid cooling assembly 90 has coolant, the drain assembly 30 does not need to transfer the coolant in the storage tank 20 to the liquid cooling assembly 90. If the sensor detects that the liquid cooling assembly 90 is low on coolant, the drain assembly 30 draws the coolant from the storage tank 20 and transfers the coolant to the inside of the liquid cooling assembly 90.

[0026] In this embodiment, a control device is provided inside the housing 10. The control device can be coupled to the sensor and the drain assembly 30, thereby controlling the working state of the drain assembly 30 and receiving data collected by the sensor. After the replenishment device is fixed to the liquid cooling assembly 90, coolant can be poured into the storage tank 20. A coolant pressure set value is set in the control device. After the sensor detects the pressure value of the coolant in the liquid cooling assembly 90, the control device obtains the pressure value transmitted by the sensor and compares the collected coolant pressure value with the set value to determine whether there is a lack of coolant in the liquid cooling assembly 90. If it is determined that there is a lack of coolant in the liquid cooling assembly 90, the control device sends a signal to control the drain assembly 30 to draw coolant from the storage tank 20, thereby transferring the coolant to the liquid cooling assembly 90 through the drain assembly 30.

[0027] In a specific application scenario, the coolant replenishment device is connected to the liquid cooling assembly 90. When the sensor detects the pressure of the coolant in the liquid cooling assembly 90, the collected pressure value is transmitted to the control device. The control device compares the received pressure value with a set value to determine whether the cooling assembly is short of coolant and whether coolant needs to be added. If the control device determines that the liquid cooling assembly 90 is short of coolant, it controls the drain assembly 30 to transfer coolant from the reservoir 20 to the liquid cooling assembly 90. If the control device determines that the liquid cooling assembly 90 has coolant, it stops the liquid cooling assembly 90 from operating. By controlling the working state of the drain assembly 30 through the control device and the sensor, the coolant replenishment device can automatically replenish the liquid cooling assembly 90 when it is short of coolant, effectively improving the replenishment efficiency of the liquid cooling assembly 90. This eliminates the need for manual replenishment, reducing replenishment time and operational steps.

[0028] In the above embodiment, by providing a drain assembly 30 communicating with the liquid storage tank 20 inside the housing 10, and connecting the liquid cooling assembly 90 to the other end of the drain assembly 30, and providing a sensor corresponding to the liquid cooling assembly 90, the control device is coupled to the drain assembly 30 and the sensor. The sensor can detect whether there is a lack of coolant in the liquid cooling assembly 90 and control the working state of the drain assembly 30, so that the replenishment device can automatically replenish the liquid cooling assembly 90, effectively improving the replenishment efficiency of the replenishment device for the liquid cooling assembly 90.

[0029] In an optional embodiment, the housing 10 includes a first housing 102 and a second housing 103, which are detachably connected to form a receiving portion 101. Specifically, the liquid storage tank 20 and the drain assembly 30 are disposed on the inner wall of the first housing 102. After the liquid storage tank 20 and the drain assembly 30 are placed within the receiving portion 101, the second housing 103 is fastened onto the first housing 102, thereby protecting the liquid storage tank 20 and the drain assembly 30 through the second housing 103. Wherein, combined with Figure 4As shown, the second housing 103 has several through holes 80, allowing observation of the components and pipelines inside the housing 10 through these holes. This facilitates routine maintenance of the fluid replenishment assembly and also allows for ventilation of the fluid replenishment device, preventing it from being constantly damp. In this embodiment, at least one limiting member 201 is provided on the inner wall of the first housing 102. The limiting member 201 is detachably connected to the first housing 102, and the fluid storage tank 20 is clamped and fixed by the first housing 102 and the limiting member 201. That is, the limiting member 201 can be provided on the inner wall of the housing 10, and the limiting member 201 can fix the fluid storage tank 20. In this embodiment, a snap-fit ​​member is provided on the first housing 102, and a snap-fit ​​member is provided on the second housing 103, so that the second housing 103 can be hinged to the first housing 102 by rotation. In other embodiments, other fixing methods can also be used, such as snap-fit, etc. This application does not specifically limit the method.

[0030] In an optional embodiment, the drain assembly 30 includes a water pump 301 and a drain pipe 302. One end of the water pump 301 is connected to the storage tank 20 via a pipeline, and the other end of the water pump 301 is connected to the drain pipe 302. That is, the control device is coupled to the water pump 301. A sensor detects the pressure value of the coolant inside the liquid cooling assembly 90. The control device receives the pressure value detected by the sensor and compares the collected pressure value with a set value to determine whether the liquid cooling assembly 90 is short of coolant. If the control device determines that the liquid cooling assembly 90 is short of coolant, the control device controls the water pump 301 to draw coolant from the storage tank 20 and transfer the coolant to the liquid cooling assembly 90 through the drain pipe 302, thereby automatically replenishing the liquid cooling assembly 90. Specifically, one end of the drain pipe 302 is connected to the water pump 301, and the other end is connected to the liquid cooling assembly 90. Thus, when the water pump 301 draws coolant from the storage tank 20, the coolant can be transferred to the liquid cooling assembly 90 through the drain pipe 302.

[0031] In this embodiment, the sensor can detect the pressure value inside the liquid cooling assembly 90 in real time, that is, it can collect data on whether there is a lack of coolant inside the liquid cooling assembly 90. When there is a lack of coolant inside the liquid cooling assembly 90, the sensor transmits the pressure value to the control device. The control device detects the lack of coolant inside the liquid cooling assembly 90 and controls the water pump 301 to transfer the coolant from the storage tank 20 to the liquid cooling assembly 90. After coolant is present in the liquid cooling assembly 90, the sensor detects the pressure value inside the liquid cooling assembly 90. The control device determines that the pressure value is greater than a preset value, thereby causing the control device to control the water pump 301 to stop working. In other embodiments, when there is a lack of coolant inside the liquid cooling assembly 90, after the control device controls the drain assembly 30 to transfer coolant into the liquid cooling assembly 90, the sensor detects that the coolant in the liquid cooling assembly 90 is completely transferred, that is, after the coolant in the liquid cooling assembly 90 is full, the sensor transmits the coolant pressure value to the control device, and the control device controls the water pump 301 to stop working. That is, when the sensor detects that there is a lack of coolant in the liquid cooling component 90, and the water pump 301 transfers coolant to the liquid cooling component 90 and fills the liquid cooling component 90, the control device then controls the water pump 301 to stop working.

[0032] In an optional embodiment, the coolant reservoir 20 is provided with a coolant inlet 401, and the coolant inlet 401 is connected to a coolant inlet pipe 50, which is at least partially exposed on the outside of the first housing 102. That is, by providing the coolant inlet 401 to the coolant reservoir 20, coolant can be injected into the coolant reservoir 20 through the coolant inlet pipe 50 connected to the coolant inlet 401 when the coolant in the coolant reservoir 20 is low. The inlet pipe 50 is equipped with a cover 501, which is detachably connected to the inlet pipe 50. When coolant is present in the storage tank 20, coolant is injected into the storage tank 20 through the inlet pipe 50. After the coolant injection is completed in the storage tank, the cover 501 can be fixed on the inlet pipe 50 to seal the inlet pipe 50 and prevent contamination of the coolant in the storage tank 20. When the water pump 301 draws coolant from the storage tank 20, impurities are prevented from entering the water pump 301 and damaging it.

[0033] In this embodiment, a drain port 402 is provided on the liquid storage tank 20. The drain port 402 is connected to the water pump 301 through a pipeline and is located at the bottom of the liquid storage tank 20. That is, the drain port 402 is used to connect to the water pump 301. When coolant is needed in the liquid cooling assembly 90, the water pump 301 can be controlled by the control device to draw coolant from the liquid storage tank 20. The coolant in the liquid storage tank 20 is transferred to the water pump 301 through the drain port 402, and then transferred to the liquid cooling assembly 90 by the water pump 301. Specifically, the drain port 402 is located at the bottom of the liquid storage tank 20 to facilitate the drawing of coolant from the liquid storage tank 20. In other embodiments, a filter device can be provided at the connection between the water pump 301 and the liquid storage tank 20 through a pipeline. The filter device can be installed in the pipeline connecting the water pump 301 and the liquid storage tank 20 to prevent debris from entering the tank. Specifically, the filter device can be configured as an annular filter screen, which facilitates the installation of the filter device in the pipeline connecting the water pump 301 and the liquid storage tank 20, and clamps and fixes it to the drain port 402 through the pipeline.

[0034] In an optional embodiment, such as Figure 3 As shown, the liquid replenishment device also includes a sight tube 60, which comprises a first part and a second part. The first part of the sight tube 60 extends along a first direction, and the second part extends along a second direction, with the first and second directions intersecting. A slot 70 is provided on the side wall of the first housing 102, and the second part of the sight tube 60 is fitted into the slot 70. The first part of the sight tube 60 communicates with the liquid storage tank 20. An opening is provided on the side wall of the liquid storage tank 20, and the sight tube 60 is installed in this opening. The sight tube 60 is divided into a first part extending along the first direction and a second part extending along the second direction, with the first and second directions intersecting, i.e., the first part and the second part are connected and set at a certain angle. The first part is connected to the reservoir 20 and can be perpendicular to the side wall of the reservoir 20 and connected to the opening. The second part is fitted against the inner side wall of the first housing 102, that is, the first part and the second part can be perpendicularly set. A slot 70 is opened on the side wall of the first housing 102, and the second part of the sight tube 60 can fit against the slot 70 of the first housing 102. The liquid level in the second part of the sight tube 60 can be observed through the slot 70 to determine whether there is a lack of coolant in the reservoir 20. Specifically, a scale can be set on the second part of the sight tube 60 to determine the coolant level in the reservoir 20. The height of the second part of the sight tube 60 is the same as the height of the reservoir 20, so that the first part of the sight tube 60 can connect to the second part of the sight tube 60, so that the liquid level in the second part of the sight tube 60 is the same as the liquid level in the reservoir 20.

[0035] In this embodiment, a liquid level sensor (not shown) is installed inside the portion of the sight tube 60 corresponding to the slot 70. Specifically, a liquid level sensor is installed in the second portion of the sight tube 60, which can detect the presence of coolant in the sight tube 60. If the liquid level sensor detects a lack of coolant in the second portion of the sight tube 60, it can issue an alarm, requiring manual or mechanical refilling of coolant into the reservoir 20. In other embodiments, the liquid level sensor can be installed inside the reservoir 20 to detect whether the reservoir 20 is low on coolant. That is, by installing a liquid level sensor in the second portion of the sight tube 60 or inside the reservoir 20, it is possible to monitor whether the reservoir 20 is low on coolant, thereby preventing a situation where the reservoir 20 is low on coolant. The liquid level sensor detects the coolant level in the second part of the sight tube 60. If the coolant level in the second part of the sight tube 60 is lower than the level detected by the liquid level sensor, the user is reminded to add coolant to the reservoir 20. The sight tube 60, inlet pipe 50, and outlet pipe 302 can be EPDM (Ethylene Propylene Diene Monomer) hoses or other rubber hoses; no specific limitation is made here.

[0036] In an optional embodiment, the sensor is a pressure sensor to collect the pressure of the coolant in the liquid cooling assembly 90. Specifically, the sensor connected to the liquid cooling assembly 90 is a pressure sensor, which can be a hydraulic sensor. The pressure sensor can be set to measure the pressure of the coolant inside the liquid cooling assembly 90, thereby transmitting the pressure value to the control device. Based on the received pressure value, the control device determines whether there is a shortage of coolant in the liquid cooling assembly 90. Specifically, the pressure sensor detects the pressure of the coolant in the pipes of the liquid cooling assembly 90, and the control device determines whether there is a shortage of coolant in the pipes of the liquid cooling assembly 90 based on the received pressure value.

[0037] In a specific application scenario, coolant is filled into the reservoir 20. Sensors monitor the pressure of the coolant in the pipes of the liquid cooling assembly 90 in real time and transmit this pressure value to the control device. The control device compares the pressure value with a preset value to determine if the liquid cooling assembly 90 is low on coolant. If the coolant pressure in the liquid cooling assembly 90 is lower than the preset value, the control device determines that the liquid cooling assembly 90 is low on coolant and starts the water pump 301. This causes the water pump 301 to draw coolant from the reservoir 20 and transfer it to the liquid cooling assembly 90. After the liquid cooling assembly 90 is filled with coolant, the sensors transmit the coolant pressure value in the assembly to the control device. If the control device determines that the coolant pressure in the liquid cooling assembly 90 is higher than the preset value, the control device stops the water pump 301. This completes the automatic replenishment of coolant to the liquid cooling assembly 90. Furthermore, after the water pump 301 draws coolant from the reservoir 20, the coolant level in the reservoir 20 can be observed through the second part of the sight tube 60. The coolant level in the reservoir 20 can also be detected by the level sensor. If the coolant level in the reservoir 20 is low, i.e., the level sensor can monitor the coolant level in the second part of the sight tube 60, and the coolant level in the second part of the sight tube 60 is lower than the test position of the level sensor, a warning will be issued to remind the reservoir 20 to be filled with coolant.

[0038] By employing the above method, this application provides a drain assembly 30 connected to the liquid storage tank 20 within the housing 10, and connects the liquid cooling assembly 90 to the other end of the drain assembly 30. A sensor is installed corresponding to the liquid cooling assembly 90, and the control device is coupled to the drain assembly 30 and the sensor. This allows the sensor to detect whether the liquid cooling assembly 90 is lacking coolant and controls the operating state of the drain assembly 30, enabling the replenishment device to automatically replenish the liquid cooling assembly 90, effectively improving the replenishment efficiency of the replenishment device. By providing a first housing 102 and a second housing 103, the liquid storage tank 20 and the drain assembly 30 can be effectively housed within the housing 10, facilitating the installation and maintenance of both. By connecting the inlet pipe 50 to the inlet port 401 and installing a cover 501 on the inlet pipe 50, debris can be prevented from entering the reservoir 20. This prevents debris from entering the water pump 301 and damaging it when the water pump 301 draws coolant from the reservoir 20. By providing a drain port 402 at the bottom of the reservoir 20, the coolant in the reservoir 20 can be effectively drawn, preventing incomplete extraction. By connecting a sight tube 60 to the reservoir 20 and providing a matching slot 70 on the first housing 102, the coolant level in the reservoir 20 can be observed through the sight tube 60. By installing a level sensor in the sight tube 60, the coolant level in the reservoir 20 can be monitored in real time.

[0039] This application also provides an energy storage cabinet, which includes a liquid replenishment device, wherein the liquid replenishment device is any of the liquid replenishment devices described in the above embodiments.

[0040] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A fluid replenishment device, characterized in that, The fluid replenishment device includes: A housing having a receiving portion, wherein a liquid storage tank is disposed within the receiving portion; A drain assembly is disposed inside the housing, with one end connected to the liquid storage tank and the other end used to connect to the liquid cooling assembly; A sensor is provided corresponding to the liquid cooling assembly to detect whether there is a lack of coolant in the liquid cooling assembly; A control device is connected to the sensor and the drain assembly. The control device receives the signal from the sensor and controls the working state of the drain assembly so that when the liquid cooling assembly lacks coolant, the liquid storage tank supplies coolant to the liquid cooling assembly.

2. The fluid replenishment device according to claim 1, characterized in that, The housing includes a first housing and a second housing, which are detachably connected to form the receiving portion.

3. The fluid replenishment device according to claim 2, characterized in that, The drainage assembly includes a water pump and a drainage pipe. One end of the water pump is connected to the storage tank via a pipeline, and the other end of the water pump is connected to the drainage pipe.

4. The fluid replenishment device according to claim 3, characterized in that, The liquid storage tank is provided with a liquid inlet, and the liquid inlet is connected to a liquid inlet pipe, which is at least partially exposed on the outside of the first housing; The liquid storage tank is equipped with a drain port, which is connected to the water pump via a pipeline and is located at the bottom of the liquid storage tank.

5. The fluid replenishment device according to claim 2, characterized in that, The fluid replenishment device also includes a sight tube, which includes a first part and a second part. The first part of the sight tube extends along a first direction, and the second part of the sight tube extends along a second direction. The first direction and the second direction intersect. A slot is provided on the side wall of the first housing, and the second part of the sight tube is fitted into the slot, while the first part of the sight tube is connected to the liquid storage tank.

6. The fluid replenishment device according to claim 5, characterized in that, A liquid level sensor is installed inside the portion of the sight tube corresponding to the groove opening.

7. The fluid replenishment device according to claim 4, characterized in that, The inlet pipe is detachably connected to a cover.

8. The fluid replenishment device according to claim 1, characterized in that, The sensor is a pressure sensor used to collect the pressure of the coolant in the liquid cooling assembly.

9. The fluid replenishment device according to claim 2, characterized in that, The second housing has several through holes, and the inner sidewall of the first housing has at least one limiting member. The limiting member is detachably connected to the first housing, and the liquid storage tank is clamped and fixed by the first housing and the limiting member.

10. An energy storage cabinet, characterized in that, The energy storage cabinet includes a liquid replenishment device as described in any one of claims 1-9.

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