Liquid supplementing device and energy storage cabinet

By designing an automated liquid replenishment device, using sensors and control devices to detect and replenish coolant in the liquid-cooled assembly, the problem of inefficient liquid replenishment in the prior art is solved, and an efficient and automated liquid replenishment process is achieved.

CN119944256APending Publication Date: 2025-05-06SHENZHEN MEGMEET ELECTRICAL CO LTD
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Patent Information

Application Number
CN202510102650.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2025-05-06

AI Technical Summary

Technical Problem

In the prior art, the rehydration method of energy storage liquid cooling units is inefficient, requires manual operation and takes a long time, which affects experimental testing and product application scenarios.

Method used

A liquid replenishment device is designed, including a housing, a liquid storage tank, a liquid discharge assembly, a sensor and a control device. The sensor detects the loss of coolant in the liquid cooling assembly, and automatically controls the liquid discharge assembly to replenish the liquid through the control device.

Benefits of technology

It realizes automatic fluid replenishment, improves fluid replenishment efficiency, reduces manual operation time, and adapts to a wider range of experimental testing and product application scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention 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.
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Description

Technical Field

[0001] The present application is applied to the technical field of energy storage cabinets, and in particular relates to a liquid replenishing device and an energy storage cabinet. Background Art

[0002] Energy storage cabinets are energy storage devices that store packaged battery packs. They can play a major role when electricity is urgently needed. They are mainly used in power generation, power grids, household users and other scenarios with large power loads or sudden power demand. Energy storage cabinets have poor ventilation and heat dissipation due to the large installed capacity of batteries, battery charging and discharging, and light radiation. Therefore, energy storage cooling units are needed to avoid such problems.

[0003] However, in the prior art, the refilling method for energy storage liquid cooling units mostly adopts manual refilling, which requires a series of manual operations for refilling and takes a long time. During the subsequent research and development debugging and product operation, refilling is inconvenient, which to a certain extent affects the experimental testing and limits the product's application scenarios and customer needs. Summary of the invention

[0004] The present application provides a liquid replenishing device to solve the problem of low liquid replenishing efficiency of liquid cooling components in the liquid replenishing device in the prior art.

[0005] In order to solve the above-mentioned technical problems, the present application provides a liquid replenishing device on the one hand, including: a shell body, the shell body is formed with a accommodating portion, and a liquid storage tank is arranged in the accommodating portion; a drainage component is arranged in the shell body, one end of which is connected to the liquid storage tank, and the other end is used to connect to the liquid cooling component; a sensor is arranged corresponding to the liquid cooling component to detect whether there is a lack of coolant in the liquid cooling component; a control device is connected to the sensor and the drainage component, the control device receives the signal of the sensor, and controls the working state of the drainage component, so that when the liquid cooling component lacks coolant, the liquid storage tank supplies liquid to the liquid cooling component.

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

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

[0008] Among them, the liquid storage tank is provided with a liquid inlet, the liquid inlet is connected to a liquid inlet pipe, and the liquid inlet pipe is at least partially exposed to the outside of the first shell; the liquid storage tank is provided with a liquid drain, the liquid drain is connected to the water pump through a pipeline, and the liquid drain is located at the bottom of the liquid storage tank.

[0009] Among them, the fluid replenishing device also includes a sight tube, the sight tube includes a first part and a second part, the first part of the sight tube extends along a first direction, the second part of the sight tube extends along a second direction, and the first direction intersects with the second direction; a slot is opened on the side wall of the first shell, the second part of the sight tube is arranged to fit the slot, and the first part of the sight tube is connected to the liquid storage tank.

[0010] Wherein, a liquid level sensor is arranged inside the portion of the sight glass tube corresponding to the notch.

[0011] Wherein, a shell cover is detachably connected to the liquid inlet pipe.

[0012] The sensor is a pressure sensor for collecting the pressure of the coolant in the liquid cooling component.

[0013] Among them, a plurality of through holes are opened on the second shell, and at least one limiting member is arranged on the inner side wall of the first shell. The limiting member is detachably connected to the first shell, and the liquid storage tank is clamped and fixed by the first shell and the limiting member.

[0014] In order to solve the above problems, the present application also provides an energy storage cabinet, including: a fluid replenishing device, which is any one of the fluid replenishing devices mentioned above.

[0015] The beneficial effects of the present application are as follows: different from the prior art, the present application arranges a drainage assembly connected to the liquid storage tank in the shell, and connects the liquid cooling assembly to the other end of the drainage assembly, arranges a sensor corresponding to the liquid cooling assembly, and couples the control device to the drainage assembly and the sensor. The sensor can be used to detect whether there is a lack of coolant in the liquid cooling assembly, and the working state of the drainage assembly can be controlled, so that the replenishing device can automatically replenish the liquid cooling assembly, thereby effectively improving the replenishing efficiency of the replenishing device for the liquid cooling assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an exploded view of the fluid replenishment device of the present application;

[0017] Figure 2 It is a structural schematic diagram of the connection between the liquid replenishing device and the liquid cooling component of the present application;

[0018] Figure 3 It is a structural schematic diagram of a side view of the fluid replenishing device of the present application;

[0019] Figure 4 It is a structural schematic diagram of the fluid replenishing device of the present application from another perspective. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0021] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0023] See also Figure 1 , Figure 1 It is a structural schematic diagram of an exploded view of a fluid infusion device provided in the present application.

[0024] The present application provides a fluid replenishment device. Figure 1 As shown, the fluid replenishing device of this embodiment includes: a housing 10, a fluid discharge assembly 30, a sensor (not shown) and a control device (not shown). The housing 10 is formed with a receiving portion 101, and a fluid storage tank 20 is disposed in the receiving portion 101. Figure 2 As shown, the drain assembly 30 is arranged in the housing 10, one end of which is connected to the liquid storage tank 20, and the other end is used to connect the liquid cooling assembly 90. The sensor is arranged corresponding to the liquid cooling assembly 90 to detect whether there is a lack of coolant in the liquid cooling assembly 90. The control device is connected to the sensor and the drain assembly 30, the control device receives the signal of the sensor, and controls the working state of the drain assembly 30, so that when the liquid cooling assembly 90 lacks coolant, the liquid storage tank 20 supplies liquid 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, the liquid storage tank 20 is disposed in the receiving portion 101, and a drain assembly 30 is disposed on a side of the housing 10 close to 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 there is a lack of coolant in the liquid cooling assembly 90, the coolant can be transferred to the liquid cooling assembly 90 through the drain assembly 30, that is, the coolant in the storage tank can be extracted through the drain assembly 30 and transferred to the inside of the liquid cooling assembly 90. In order to monitor in real time whether there is a lack of coolant in the liquid cooling component 90, a sensor is provided corresponding to the liquid cooling component 90. The sensor can detect whether there is a lack of coolant in the liquid cooling component 90. If the sensor detects that there is coolant in the liquid cooling component 90, the drain component 30 does not need to transfer the coolant in the liquid storage tank 20 to the liquid cooling component 90. If the sensor detects that there is a lack of coolant in the liquid cooling component 90, the drain component 30 extracts the coolant in the liquid storage tank 20 and transfers the coolant to the inside of the liquid cooling component 90.

[0026] In this embodiment, a control device is provided inside the housing 10, and the control device can be coupled with the sensor and the drain assembly 30, so that the working state of the drain assembly 30 can be controlled by the control device, and the data collected by the sensor can be received. When the refilling device is fixed on the liquid cooling assembly 90, the coolant can be first poured into the liquid storage tank 20, and a coolant pressure setting 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 in the liquid cooling assembly 90 transmitted by the sensor, and compares the collected coolant pressure value with the setting value, so as 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 extract the coolant in the liquid storage tank 20, so that the coolant is transmitted to the liquid cooling assembly 90 through the drain assembly 30.

[0027] In a specific application scenario, the refilling device is connected to the liquid cooling component 90. When the sensor detects the pressure of the coolant in the liquid cooling component 90, the collected pressure value is transmitted to the control device. The control device compares the received pressure value with the set value to determine whether the cooling component is lacking in the cooling component, and thus determines whether the cooling liquid needs to be transmitted to the cooling component. If the control device determines that the liquid cooling component 90 is lacking in the cooling liquid, the control device controls the draining component 30 to transfer the cooling liquid in the liquid storage tank 20 to the liquid cooling component 90. If the control device determines that the liquid cooling component 90 has cooling liquid, the control device controls the liquid cooling component 90 to stop working, thereby controlling the working state of the draining component 30 through the control device and the sensor, so that when the liquid cooling component 90 is lacking in the cooling liquid, the refilling device automatically refills the liquid cooling component 90, effectively improving the efficiency of the refilling device for the liquid cooling component 90, without manually refilling the liquid cooling component 90, reducing the time for refilling and the operation steps during refilling.

[0028] In the above embodiment, a drainage assembly 30 connected to the liquid storage tank 20 is arranged in the shell 10, and the liquid cooling assembly 90 is connected to the other end of the drainage assembly 30, a sensor is arranged corresponding to the liquid cooling assembly 90, and the control device is coupled to the drainage assembly 30 and the sensor. It can detect whether there is a lack of coolant in the liquid cooling assembly 90 through the sensor, and control the working state of the drainage assembly 30, so that the replenishing device can automatically replenish the liquid cooling assembly 90, thereby effectively improving the replenishing efficiency of the liquid replenishing 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, and the first housing 102 and the second housing 103 are detachably connected to form a receiving portion 101. That is, the liquid storage tank 20 and the liquid discharge assembly 30 are arranged on the inner side wall of the first housing 102. After the liquid storage tank 20 and the liquid discharge assembly 30 are arranged in the receiving portion 101, the second housing 103 is buckled on the first housing 102, so that the liquid storage tank 20 and the liquid discharge assembly 30 are protected by the second housing 103. Figure 4As shown, the second shell 103 is provided with a plurality of through holes 80, that is, the components and pipelines in the shell 10 can be observed through the plurality of through holes 80, so as to facilitate the daily maintenance of the fluid replenishment assembly, and the plurality of through holes 80 can facilitate the ventilation of the fluid replenishment device to prevent the fluid replenishment device from being in a humid state for a long time. In this embodiment, at least one stopper 201 is provided on the inner side wall of the first shell 102, and the stopper 201 is detachably connected to the first shell 102, and the liquid storage tank 20 is clamped and fixed by the first shell 102 and the stopper 201. That is, the stopper 201 can be provided on the inner side wall of the shell 10, and the stopper 201 can fix the liquid storage tank 20. In this embodiment, a clamping member is provided on the first shell 102, and a buckle is provided on the second shell 103, so that the second shell 103 can be hinged on the first shell 102 by rotation. In other embodiments, other fixing methods can also be adopted, for example, clamping methods, etc., which are not specifically limited in this application.

[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 liquid storage tank 20 through 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, the sensor detects the pressure value of the coolant in the liquid cooling assembly 90, the control device receives the pressure value detected by the sensor, and the control device compares the collected pressure value with the set value to determine whether there is a lack of coolant in the liquid cooling assembly 90. If the control device determines that there is a lack of coolant in the liquid cooling assembly 90, the control device controls the water pump 301 to extract the coolant in the liquid storage tank 20, and transmits the coolant to the inside of the liquid cooling assembly 90 through the drain pipe 302, thereby completing the automatic replenishment of 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. Therefore, when the water pump 301 extracts the coolant in the liquid 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 in the liquid cooling component 90 in real time, that is, it can collect in real time whether the liquid cooling component 90 lacks coolant. When the liquid cooling component 90 lacks coolant, the sensor transmits the pressure value to the control device. The control device detects that the liquid cooling component 90 lacks coolant and controls the water pump 301 to transfer the coolant in the liquid storage tank 20 to the liquid cooling component 90. After the coolant exists in the liquid cooling component 90, the sensor detects the pressure value in the liquid cooling component 90, and the control device determines that the pressure value is greater than the preset value, so that the control device controls the water pump 301 to stop working. In other embodiments, the liquid cooling component 90 lacks coolant, and the control device controls the drain component 30 to transfer coolant to the liquid cooling component 90. After the sensor detects that the coolant in the liquid cooling component 90 is fully transferred, that is, after the coolant in the liquid cooling component 90 is filled, the sensor transmits the pressure value of the coolant 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 assembly 90, and after the water pump 301 transfers the coolant to the liquid cooling assembly 90 and fills the liquid cooling assembly 90, the control device controls the water pump 301 to stop working.

[0032] In an optional embodiment, the liquid storage tank 20 is provided with a liquid inlet 401, the liquid inlet 401 is connected to a liquid inlet pipe 50, and the liquid inlet pipe 50 is at least partially exposed to the outside of the first housing 102. That is, the liquid inlet 401 is provided on the liquid storage tank 20, and when there is a lack of coolant in the liquid storage tank 20, the coolant can be poured into the liquid storage tank 20 through the liquid inlet pipe 50 connected to the liquid inlet 401. Among them, a shell cover 501 is provided on the liquid inlet pipe 50, and the shell cover 501 is detachably connected to the liquid inlet pipe 50. When the liquid storage tank 20 is indeed filled with coolant, the coolant is poured into the liquid storage tank 20 through the liquid inlet pipe 50. When the coolant is poured into the liquid storage tank, the shell cover 501 can be fixed on the liquid inlet pipe 50, so as to seal the liquid inlet pipe 50 to avoid contamination of the coolant in the liquid storage tank 20. When the water pump 301 extracts the coolant in the liquid storage tank 20, impurities are prevented from entering the water pump 301, thereby damaging the water pump 301.

[0033] In this embodiment, the liquid storage tank 20 is provided with a drain port 402, which is connected to the water pump 301 through a pipeline, and the drain port 402 is located at the bottom of the liquid storage tank 20. That is, the drain port 402 is used to connect with the water pump 301. When the liquid cooling component 90 needs cooling liquid, the water pump 301 can be controlled by the control device to extract the cooling liquid inside the liquid storage tank 20, and the cooling liquid in the liquid storage tank 20 is transmitted to the water pump 301 through the drain port 402, and the cooling liquid is transmitted to the liquid cooling component 90 through the water pump 301. Specifically, the drain port 402 is set at the bottom of the liquid storage tank 20, so as to facilitate the extraction of the cooling liquid in the liquid storage tank 20. In other embodiments, a filtering device can be provided at the connection between the water pump 301 and the liquid storage tank 20 through the pipeline, and the filtering device can be provided in the pipeline connecting the water pump 301 and the liquid storage tank 20, so as to prevent debris from entering the water tank. Specifically, the filter device can be configured as an annular filter net, so that the filter device can be conveniently disposed in a pipeline connecting the water pump 301 and the liquid storage tank 20 , and can be clamped and fixed to the liquid discharge port 402 through the pipeline.

[0034] In an optional embodiment, if Figure 3 As shown, the liquid replenishing device also includes a sight tube 60, which includes a first part and a second part. The first part of the sight tube 60 extends along the first direction, and the second part of the sight tube 60 extends along the second direction, and the first direction intersects with the second direction. A notch 70 is provided on the side wall of the first shell 102, and the second part of the sight tube 60 is arranged in abutment with the notch 70, and the first part of the sight tube 60 is connected to 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 provided on the 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, and the first direction intersects with the second direction, that is, the first part is connected to the second part and is arranged at a certain angle. The first part is connected to the liquid storage tank 20, and the first part can be connected to the opening perpendicularly to the side wall of the liquid storage tank 20, and the second part is arranged in abutment with the inner side wall of the first shell 102, that is, the first part and the second part can be arranged perpendicularly, and a notch 70 is provided on the side wall of the first shell 102, and the second part of the sight glass 60 can be in abutment with the notch 70 of the first shell 102, that is, the liquid level in the second part of the sight glass 60 can be observed through the notch 70, so as to judge whether there is a lack of coolant in the liquid storage tank 20. Specifically, a scale can be provided on the second part of the sight glass 60, so as to judge the coolant in the liquid storage tank 20, and the height of the second part of the sight glass 60 is the same as that of the liquid storage tank 20, so that the second part of the sight glass 60 can be connected through the first part of the sight glass 60, so that the liquid level of the second part of the sight glass 60 is the same as the liquid level of the coolant in the liquid storage tank 20.

[0035] In this embodiment, a liquid level sensor (not shown) is disposed inside the portion of the sight glass 60 corresponding to the notch 70. That is, a liquid level sensor is disposed inside the second portion of the sight glass 60, and the liquid level sensor can detect whether there is coolant in the sight glass 60. If the liquid level sensor detects that there is a lack of coolant in the second portion of the sight glass 60, an alarm can be issued through the liquid level sensor, so that the coolant needs to be manually or mechanically poured into the liquid storage tank 20. In other embodiments, the liquid level sensor can be disposed inside the liquid storage tank 20, so that the liquid level sensor can detect whether there is a lack of coolant in the liquid storage tank 20. That is, a liquid level sensor is disposed inside the second portion of the sight glass 60 or inside the liquid storage tank 20, so that it can monitor whether there is a lack of coolant in the liquid storage tank 20, thereby avoiding the occurrence of a lack of coolant in the liquid storage tank 20. The liquid level sensor detects the liquid level of the coolant in the second part of the sight glass 60. If the liquid level of the coolant in the second part of the sight glass 60 is lower than the liquid level detected by the liquid level sensor, when the liquid level sensor detects that the liquid level of the sight glass 60 is lower than the liquid level detected by the liquid level sensor, the user can be reminded to fill the liquid storage tank 20 with coolant. The sight glass 60, the liquid inlet pipe 50 and the liquid discharge pipe 302 can be EPDM (Ethylene Propylene Diene Monomer) hoses or other rubber hoses, which are not limited here.

[0036] In an optional embodiment, the sensor is a pressure sensor to collect the pressure of the coolant in the liquid cooling component 90. That is, the sensor connected to the liquid cooling component 90 is a pressure sensor, which can be a hydraulic sensor. The pressure sensor can be set to the pressure value of the coolant inside the liquid cooling component 90, so as to transmit the pressure value to the control device, so as to judge whether there is a lack of coolant in the liquid cooling component 90 according to the received pressure value. Specifically, the pressure sensor detects the pressure value of the coolant in the pipeline of the liquid cooling component 90, and the control device judges whether there is a lack of coolant in the pipeline of the liquid cooling component 90 according to the received pressure value.

[0037] In a specific application scenario, the coolant is poured into the liquid storage tank 20, and the sensor monitors the pressure value of the coolant in the pipeline of the liquid cooling component 90 in real time, and transmits the pressure value to the control device. The control device compares the pressure value with the preset value to determine whether the liquid cooling component 90 lacks coolant. If the pressure value of the coolant in the liquid cooling component 90 is less than the preset value, that is, the control device determines that the liquid cooling component 90 lacks coolant, the control device controls the water pump 301 to start, so that the water pump 301 extracts the coolant in the liquid storage tank 20 and transmits it to the liquid cooling component 90. After the liquid cooling component 90 is filled with coolant, the sensor transmits the pressure value of the coolant in the pressure component to the control device. The control device determines that the pressure value of the coolant in the liquid cooling component 90 is greater than the preset value, and the control device controls the water pump 301 to stop working. In this way, the liquid cooling component 90 is automatically replenished with coolant. Furthermore, after the water pump 301 extracts the coolant in the liquid storage tank 20, it is possible to observe whether there is a lack of coolant in the liquid storage tank 20 through the second part of the sight glass 60, and the liquid level of the coolant in the liquid storage tank 20 can be detected by the liquid level sensor. If there is a lack of coolant in the liquid storage tank 20, that is, the liquid level sensor can monitor the liquid level in the second part of the sight glass 60, and the liquid level of the coolant in the second part of the sight glass 60 is lower than the test position of the liquid level sensor, thereby issuing a warning to remind the user to refill the liquid storage tank 20 with coolant.

[0038] In the above manner, the present application sets a drain assembly 30 in communication with the liquid storage tank 20 in the housing 10, connects the liquid cooling assembly 90 to the other end of the drain assembly 30, sets a sensor corresponding to the liquid cooling assembly 90, and couples the control device with the drain assembly 30 and the sensor, so that the sensor can detect whether there is a lack of coolant in the liquid cooling assembly 90, and controls the working state of the drain assembly 30, so that the liquid replenishing device can automatically replenish the liquid cooling assembly 90, effectively improving the liquid replenishing efficiency of the liquid replenishing device for the liquid cooling assembly 90. By setting the first housing 102 and the second housing 103, the liquid storage tank 20 and the drain assembly 30 can be effectively set in the housing 10, so as to facilitate the installation and maintenance of the liquid storage tank 20 and the drain assembly 30. By providing a liquid inlet pipe 50 connected to the liquid inlet port 401 and providing a shell cover 501 on the liquid inlet pipe 50, it is possible to prevent debris from entering the liquid storage tank 20. When the water pump 301 extracts the coolant in the liquid storage tank 20, it is possible to prevent debris from entering the water pump 301, thereby damaging the water pump 301. By providing a drain port 402 on the liquid storage tank 20 and providing the drain port 402 at the bottom of the liquid storage tank 20, the coolant in the liquid storage tank 20 can be effectively extracted, and incomplete extraction of part of the coolant can be avoided. By connecting the sight glass 60 to the liquid storage tank 20 and providing a notch 70 adapted to the sight glass 60 on the first shell 102, it is possible to observe whether the liquid storage tank 20 lacks coolant through the sight glass 60. By providing a liquid level sensor in the sight glass 60, it is possible to monitor in real time whether the liquid storage tank 20 lacks coolant.

[0039] The present application also provides an energy storage cabinet, which includes: a fluid replenishing device, which is the fluid replenishing device of any of the above-mentioned embodiments.

[0040] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

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

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

3. The fluid replenishing 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 liquid storage tank through a pipeline, and the other end of the water pump is connected to the drainage pipe.

4. The fluid replenishing device according to claim 3, characterized in that: The liquid storage tank is provided with a liquid inlet, the liquid inlet is connected to a liquid inlet pipe, and the liquid inlet pipe is at least partially exposed to the outside of the first shell; The liquid storage tank is provided with a liquid discharge port, the liquid discharge port is connected to the water pump through a pipeline, and the liquid discharge port is located at the bottom end of the liquid storage tank.

5. The fluid replenishing device according to claim 2, characterized in that: The fluid replenishing device further includes a sight tube, the sight tube includes a first portion and a second portion, the first portion of the sight tube extends along a first direction, the second portion of the sight tube extends along a second direction, and the first direction intersects with the second direction; A notch is provided on the side wall of the first shell, the second part of the sight glass is arranged in close contact with the notch, and the first part of the sight glass is connected to the liquid storage tank.

6. The fluid replenishing device according to claim 5, characterized in that: A liquid level sensor is arranged inside the portion of the sight glass corresponding to the notch.

7. The fluid replenishing device according to claim 4, characterized in that: The liquid inlet pipe is detachably connected with a shell cover.

8. The fluid replenishing device according to claim 1, characterized in that: The sensor is a pressure sensor to collect the pressure of the coolant in the liquid cooling component.

9. The fluid replenishing device according to claim 2, characterized in that: The second shell is provided with a plurality of through holes, the inner side wall of the first shell is provided with at least one limiting member, the limiting member is detachably connected to the first shell, and the liquid storage tank is clamped and fixed by the first shell and the limiting member.

10. An energy storage cabinet, characterized in that: The energy storage cabinet includes the fluid replenishing device according to any one of claims 1-9.