Electrolyte buffering device and electrolyte injection equipment

Abstract

The embodiment of the invention provides an electrolyte temporary storage device and electrolyte injection equipment, and relates to the technical field of battery production equipment. The electrolyte temporary storage device comprises a protection cabinet, an electrolyte temporary storage assembly and a safety management mechanism, a containing cavity is formed in the protection cabinet, the electrolyte temporary storage assembly comprises an electrolyte pipeline, an electrolyte temporary storage tank and a bubble removing tank, the electrolyte temporary storage tank and the bubble removing tank are both located in the containing cavity, and the electrolyte pipeline is used for inputting electrolyte into the bubble removing tank; the bubble removing tank communicates with the electrolyte buffer tank, the safety management mechanism comprises a detection assembly and a control assembly electrically connected with the detection assembly, the detection assembly is used for detecting information in the containing cavity, and the control assembly controls the electrolyte pipeline to be disconnected from the electrolyte when the information is abnormal. According to the electrolyte buffer storage device provided by the embodiment of the invention, the electrolyte buffer storage tank and the bubble removing tank can be safely managed, and the occurrence of safety accidents such as combustion or explosion is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of battery production equipment, and in particular to an electrolyte buffer device and a liquid injection device. Background Art

[0002] Electrolyte is an important component of lithium battery. At present, electrolyte is usually injected into lithium battery by injection equipment.

[0003] In the prior art, the injection equipment includes an electrolyte buffer tank, a bubble removal tank and an injection pump. After being defoamed in the bubble removal tank, the electrolyte flows into the electrolyte buffer tank, and then the electrolyte in the electrolyte buffer tank is injected into the lithium battery through the injection pump.

[0004] However, the above-mentioned electrolyte buffer tank and gas bubble removal tank are more prone to combustion or explosion and have poor safety. Summary of the invention

[0005] The present application provides an electrolyte buffer device and liquid injection equipment to solve the problem in the prior art that the electrolyte buffer tank and the bubble removal tank are more prone to combustion or explosion and have poor safety.

[0006] On the one hand, the present application provides an electrolyte cache device, comprising: a protective cabinet, an electrolyte cache component and a safety management mechanism, wherein the protective cabinet has a containing cavity;

[0007] The electrolyte cache component includes an electrolyte pipeline, an electrolyte cache tank and a bubble removal tank, the electrolyte cache tank and the bubble removal tank are both located in the accommodating cavity, the electrolyte pipeline is used to input electrolyte into the bubble removal tank, the bubble removal tank is connected to the electrolyte cache tank, the safety management mechanism includes a detection component and a control component electrically connected to the detection component, the detection component is used to detect information in the accommodating cavity, when the information is abnormal, the control component controls the electrolyte pipeline to be disconnected from the electrolyte.

[0008] In some embodiments, the control component includes at least one control valve disposed in the electrolyte pipeline.

[0009] In some embodiments, the control valve includes at least one of a manual valve and an automatic valve.

[0010] In some embodiments, the control valve comprises a manual valve, and the manual valve is located outside the accommodating chamber.

[0011] In some embodiments, the control component further includes at least one control element, and the control valve and the detection component are both electrically connected to the control element.

[0012] In some embodiments, the detection component includes at least one first detection component, which is used to detect the concentration of combustible gas in the containing cavity. The first combustible gas concentration detection component is configured to send an information abnormality signal to the control component when it detects that the concentration of combustible gas in the containing cavity is greater than or equal to a preset concentration.

[0013] In some embodiments, the detection assembly includes at least one second detection member, the second detection member is located below at least one of the electrolyte buffer tank and the bubble removal tank, and the second detection member is used to detect whether the electrolyte in at least one of the electrolyte buffer tank and the bubble removal tank is leaking;

[0014] The second detection member is configured to send the abnormal information signal to the control component when a leakage of the electrolyte in at least one of the electrolyte buffer tank and the bubble removal tank is detected.

[0015] In some embodiments, a liquid collecting piece is provided under at least one of the electrolyte buffer tank and the bubble removal tank, and the liquid collecting piece is used to collect the electrolyte leaked from at least one of the electrolyte buffer tank and the bubble removal tank, and the second detection piece is located in the liquid collecting piece.

[0016] In some embodiments, the second liquid leakage detection member is a thin film leakage sensing belt, the liquid collecting member has a liquid collection groove, and the thin film leakage sensing belt is located at the bottom of the liquid collection groove.

[0017] In some embodiments, the detection assembly includes a plurality of liquid level gauge groups, and the liquid level gauge groups are respectively arranged on the electrolyte buffer tank and the bubble removal tank;

[0018] The liquid level meter group includes at least one liquid level meter, which is used to detect the liquid level of the liquid in the electrolyte buffer tank and the bubble removal tank. The liquid level meter is configured to send the information abnormality signal to the control component when it detects that the liquid level of at least one of the electrolyte buffer tank and the bubble removal tank exceeds a preset liquid level range.

[0019] In some embodiments, the liquid level gauge group includes at least two liquid level gauges, and the heights of the liquid level gauges are different.

[0020] In some embodiments, the security management mechanism further includes an alarm component, which is electrically connected to the detection component. When the detection component detects that the information is abnormal, the alarm component issues an alarm prompt.

[0021] In some embodiments, the safety management mechanism also includes at least one fire extinguishing component, which is located in the containing cavity and is used to detect the temperature in the containing cavity and spray a fire extinguishing substance toward the electrolyte cache assembly when the temperature is greater than or equal to a preset temperature.

[0022] In some embodiments, the fire extinguishing element is an ultra-fine dry powder fire extinguisher.

[0023] In some embodiments, the protective cabinet includes a cabinet body and a plurality of protective members, the cabinet body is frame-shaped, the cabinet body defines the accommodating cavity, and the protective members are connected to the circumference of the cabinet body to close at least part of the circumference of the accommodating cavity.

[0024] In some embodiments, the protective member includes a protective glass and a protective net, wherein the protective net covers the protective glass, or the protective net is embedded in the protective glass.

[0025] In some embodiments, the cabinet has at least two installation slots, and one side of the protective element is inserted into the installation slot.

[0026] In some embodiments, the protective cabinet further includes at least one baffle, wherein the baffle is connected to at least one of the cabinet body and the protective member to shield a connection between the cabinet body and the protective member.

[0027] In some embodiments, one side of at least one of the protection members is hinged to the cabinet, and the protection member rotates relative to the cabinet to open or close the accommodating cavity.

[0028] In some embodiments, at least one of the protective members is connected to the top of the cabinet, and an opening is formed at the top of the cabinet, the opening is communicated with the accommodating cavity, and the electrolyte pipeline enters the accommodating cavity through the opening.

[0029] In some embodiments, the electrolyte buffer assembly further includes at least one filter element, and the filter element is used to connect the electrolyte with the bubble removal tank.

[0030] In some embodiments, the electrolyte cache assembly further includes at least one first drive pump, and the first drive pump is connected to the electrolyte cache tank.

[0031] In some embodiments, a cleaning liquid cache component is also included, and the cleaning liquid cache component includes a cleaning liquid pipeline, a cleaning liquid cache tank and a waste liquid tank, the cleaning liquid cache tank and the waste liquid tank are both located in the accommodating cavity, the cleaning liquid pipeline is used to input cleaning liquid into the cleaning liquid cache tank, and the cleaning liquid cache tank is connected to the waste liquid tank.

[0032] In some embodiments, the cleaning fluid cache assembly further includes at least one second drive pump, and the second drive pump is connected to the cleaning fluid cache tank.

[0033] In some embodiments, the cleaning liquid buffer tank is located below the waste liquid tank, and the electrolyte buffer tank is located below the bubble removal tank.

[0034] In some embodiments, a vacuum cache assembly is further included, wherein the vacuum cache assembly includes a vacuum pipeline and a vacuum tank;

[0035] The vacuum pipeline is used to connect the vacuum source with the vacuum tank, and the vacuum tank is connected with at least one of the bubble removal tank and the waste liquid tank.

[0036] In some embodiments, at least one gas-liquid separator is further included, wherein the gas-liquid separator connects the vacuum tank with at least one of the bubble removal tank and the waste liquid tank.

[0037] On the other hand, the present application provides a liquid injection device, including a device body and any one of the above-mentioned electrolyte cache devices, wherein the electrolyte cache tank of the electrolyte cache device is connected to the device body.

[0038] The present application proposes an electrolyte buffer device and a liquid injection device, wherein the electrolyte buffer device includes a protective cabinet, an electrolyte buffer component and a safety management mechanism. By setting a protective cabinet, a containing chamber is provided in the protective cabinet, and the electrolyte buffer tank and the bubble removal tank are placed in the containing chamber. The electrolyte buffer tank and the bubble removal tank are protected by setting a protective cabinet. At the same time, the space in the containing chamber is relatively closed, and the conditions for setting a safety management mechanism are met. It is convenient to set a safety management mechanism in the containing chamber. By setting a detection component to detect the information in the containing chamber, it is convenient to safely manage the electrolyte pipeline, the electrolyte buffer tank and the bubble removal tank, and reduce the occurrence of safety accidents. By setting a control component, when the detection component detects that the information is abnormal, the control component controls the electrolyte pipeline and the electrolyte to be disconnected to block the transmission of the electrolyte, so that the electrolyte cannot continue to be input into the bubble removal tank. Thus, by setting a detection component and a control component, the electrolyte buffer tank and the bubble removal tank are safely managed, the occurrence of safety accidents such as combustion or explosion is reduced, and the safety of the electrolyte buffer device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0040] Figure 1 A schematic diagram of the structure of the liquid injection device provided in the embodiment of the present application;

[0041] Figure 2 for Figure 1 A structural diagram from another perspective;

[0042] Figure 3 for Figure 2 Partial cross-sectional view of AA;

[0043] Figure 4 for Figure 1 Schematic diagram of the structure of the middle part injection equipment;

[0044] Figure 5 for Figure 1 Schematic diagram of the structure of the medium protection cabinet;

[0045] Figure 6 for Figure 5 Schematic diagram of the structure of the middle part protective cabinet;

[0046] Figure 7 for Figure 5 Schematic diagram of the structure of the middle protective part.

[0047] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments.

[0048] Description of reference numerals:

[0049] 100-protective cabinet; 110-accommodating chamber; 111-first partition; 112-second partition; 113-opening; 120-cabinet; 121-support rod; 122-installation slot; 130-protective member; 131-protective glass; 132-protective net; 133-handle; 140-baffle; 150-liquid collecting member; 160-support foot;

[0050] 200-electrolyte buffer assembly; 210-electrolyte pipeline; 220-electrolyte buffer tank; 230-bubble removal tank; 240-filter element; 250-first drive pump;

[0051] 300 - cleaning liquid cache assembly; 310 - cleaning liquid pipeline; 320 - cleaning liquid cache tank; 330 - waste liquid tank; 340 - second drive pump;

[0052] 400-detection component; 410-first detection component; 420-second detection component; 430-liquid level meter group; 431-liquid level meter;

[0053] 500-control valve;

[0054] 600- Fire extinguishing parts;

[0055] 700-vacuum cache assembly; 710-vacuum pipeline; 720-vacuum tank;

[0056] 800-Gas-liquid separator. DETAILED DESCRIPTION

[0057] The exemplary embodiments will be described in detail below, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0058] In the prior art, the injection equipment includes an electrolyte buffer tank, a bubble removal tank and an injection pump. The electrolyte flows into the electrolyte buffer tank after being defoamed by the bubble removal tank, and then the electrolyte in the electrolyte buffer tank is injected into the lithium battery by the injection pump. However, the electrolyte is flammable. When the electrolyte leaks, it is easy to cause the electrolyte buffer tank and the bubble removal tank to burn or explode, which is less safe.

[0059] Based on this, the embodiment of the present application provides an electrolyte cache device, including a protective cabinet, an electrolyte cache component and a safety management mechanism. By setting a protective cabinet, a storage chamber is provided in the protective cabinet, and the electrolyte cache tank and the bubble removal tank are placed in the storage chamber. The electrolyte cache tank and the bubble removal tank are protected by setting a protective cabinet. At the same time, the space in the storage chamber is relatively closed, and the conditions for setting a safety management mechanism are met. It is more convenient to set a safety management mechanism in the storage chamber. By setting a detection component to detect the information in the storage chamber, it is convenient to safely manage the electrolyte pipeline, the electrolyte cache tank and the bubble removal tank, and reduce the occurrence of safety accidents. By setting a control component, when the detection component detects that the information is abnormal, the control component controls the electrolyte pipeline and the electrolyte to be disconnected to block the transmission of the electrolyte, so that the electrolyte cannot continue to be input into the bubble removal tank. Therefore, by setting a detection component and a control component, the electrolyte cache tank and the bubble removal tank are safely managed, the occurrence of safety accidents such as combustion or explosion is reduced, and the safety of the electrolyte cache device is improved.

[0060] The embodiments of the present application are described below with reference to the accompanying drawings.

[0061] Reference Figures 1 to 5 An electrolyte caching device provided in an embodiment of the present application includes: a protective cabinet 100, an electrolyte caching assembly 200 and a safety management mechanism, and the protective cabinet 100 has a accommodating chamber 110.

[0062] The electrolyte cache assembly 200 includes an electrolyte pipeline 210, an electrolyte cache tank 220 and a bubble removal tank 230. The electrolyte cache tank 220 and the bubble removal tank 230 are both located in the accommodating cavity 110. The electrolyte pipeline 210 is used to input electrolyte into the bubble removal tank 230. The bubble removal tank 230 is connected to the electrolyte cache tank 220.

[0063] The safety management mechanism includes a detection component 400 and a control component electrically connected to the detection component 400. The detection component 400 is used to detect information in the accommodating cavity 110. When the information is abnormal, the control component controls the electrolyte pipeline 210 to be disconnected from the electrolyte.

[0064] Exemplarily, the protection cabinet 100 is made of a non-flammable material to prevent the protection cabinet 100 from being ignited when a fire occurs in the electrolyte buffer tank 220 and the bubble removal tank 230 .

[0065] Specifically, the liquid inlet of the bubble removal tank 230 is connected to the external electrolyte through the electrolyte pipeline 210 to transport the external electrolyte to the bubble removal tank 230, and remove the bubbles in the electrolyte in the bubble removal tank 230 to prevent the bubbles from affecting the diffusion performance and charging and discharging efficiency of the electrolyte. The liquid outlet of the bubble removal tank 230 is connected to the liquid inlet of the electrolyte buffer tank 220, so that the electrolyte after the bubbles are removed can be transported from the bubble removal tank 230 to the electrolyte buffer tank 220, so that the electrolyte is buffered in the electrolyte buffer tank 220. When it is necessary to inject electrolyte into the battery cell, the electrolyte in the electrolyte buffer tank 220 can be injected into the battery cell.

[0066] The detection component 400 may be disposed in the accommodating chamber 110 to facilitate detection of information in the accommodating chamber 110. The above information includes the pressure of the electrolyte buffer tank 220, the pressure of the bubble removal tank 230, the temperature in the accommodating chamber 110, the concentration of combustible gas in the accommodating chamber 110, the liquid level of the electrolyte in the electrolyte buffer tank 220, the liquid level of the electrolyte in the bubble removal tank 230, etc. When the detection component 400 detects that the above information is abnormal, the abnormal information is sent to the control component, and the control component controls the electrolyte pipeline 210 to disconnect.

[0067] The electrolyte buffer device provided in the embodiment of the present application includes a protective cabinet 100, an electrolyte buffer component 200 and a safety management mechanism. By setting the protective cabinet 100, the protective cabinet 100 has a accommodating chamber 110, and the electrolyte buffer tank 220 and the bubble removal tank 230 are placed in the accommodating chamber 110. The electrolyte buffer tank 220 and the bubble removal tank 230 are protected by setting the protective cabinet 100. At the same time, the space in the accommodating chamber 110 is relatively closed, and the conditions for setting up a safety management mechanism are met. It is more convenient to set up a safety management mechanism in the accommodating chamber 110. By setting a detection component 400 to detect the information in the accommodating chamber 110, it is convenient to perform safety management on the electrolyte pipeline 210, the electrolyte buffer tank 220 and the bubble removal tank 230, and reduce the occurrence of safety accidents. By setting a control component, when the detection component 400 detects that the information is abnormal, the control component controls the electrolyte pipeline 210 to be disconnected from the electrolyte to block the transmission of the electrolyte, so that the electrolyte cannot continue to be input into the bubble removal tank 230. Therefore, by setting the detection component 400 and the control component, the electrolyte buffer tank 220 and the bubble removal tank 230 are safely managed, the occurrence of safety accidents such as combustion or explosion is reduced, and the safety of the electrolyte buffer device is improved.

[0068] Reference Figure 1 and Figure 3 In some embodiments, the control component includes at least one control valve 500 , and the control valve 500 is disposed on the electrolyte pipeline 210 .

[0069] The electrolyte pipeline 210 is controlled to be connected or disconnected by opening or closing the control valve 500 .

[0070] Specifically, when the information detected by the detection component 400 is abnormal, the control valve 500 is closed to disconnect the electrolyte pipeline 210, thereby blocking the flow of electrolyte in the electrolyte pipeline 210 to prevent safety accidents.

[0071] In a specific implementation, the control valve 500 includes at least one of a manual valve and an automatic valve.

[0072] Exemplarily, the electrolyte pipeline 210 is provided with both a manual valve and an automatic valve.

[0073] Specifically, when the detection component 400 detects that the information in the accommodating chamber 110 is abnormal, the automatic valve can be automatically closed to disconnect the electrolyte pipeline 210. Alternatively, after obtaining the abnormal information detected by the detection component 400, the operator observes and determines the conditions of the protection cabinet 100 and the electrolyte buffer component 200, and then manually closes the manual valve on the electrolyte pipeline 210, thereby disconnecting the electrolyte pipeline 210.

[0074] Reference Figure 3In a specific implementation, the control valve 500 includes a manual valve, which is located outside the accommodating chamber 110 so that an operator can manually close the manual valve.

[0075] Specifically, the manual valve may be disposed on a side of the electrolyte pipeline 210 away from the protective cabinet 100 .

[0076] In a specific implementation, the control component further includes at least one control element, and the control valve 500 and the detection component 400 are both electrically connected to the control element.

[0077] The detection component 400 is electrically connected to the control component, so that the detection component 400 can send abnormal information to the control component. The control component is electrically connected to the control valve 500, so that the control valve 500 can be opened or closed by operating the control component.

[0078] Exemplarily, the control valve 500 is a pneumatic valve.

[0079] Specifically, the liquid injection equipment includes a control cabinet. The control components are arranged in the control cabinet. The control cabinet can be arranged at a distance from the protection cabinet 100. For example, the protection cabinet 100 is arranged in the liquid injection workshop, and the control cabinet can be arranged on a wall or door outside the liquid injection workshop, and the distance between the control cabinet and the ground is suitable, so that the operator can operate the control cabinet conveniently.

[0080] In order to facilitate the control of various components of the liquid injection equipment, a fire control room is set up. The control components can be set up in the fire control room so that the operators in the fire control room can obtain the abnormal information detected by the detection component 400 in time, and it is convenient for the operators to operate the control components.

[0081] Furthermore, after the operator on the side of the control cabinet or the operator in the fire control room obtains the abnormal information sent by the detection component 400, the operator who is closer to the protection cabinet 100 first observes and judges the situation of the protection cabinet 100 and the electrolyte buffer component 200. After determining the on-site situation, the operator on the side of the control cabinet or the operator in the fire control room operates the control component to close the control valve 500. Therefore, by determining the on-site situation and then closing the control valve, it is possible to avoid closing the control valve due to a false alarm of the detection component 400, which affects the normal use of the electrolyte buffer device.

[0082] Reference Figure 3 and Figure 4 In some embodiments, the detection component 400 includes at least one first detection component 410, which is used to detect the concentration of combustible gas in the containing cavity 110. The first detection component 410 is configured to send an abnormal information signal to the control component when it detects that the concentration of combustible gas in the containing cavity 110 is greater than or equal to a preset concentration.

[0083] When the concentration of the combustible gas in the accommodating chamber 110 is greater than the preset concentration, it is more likely to cause safety accidents such as fire or explosion. Therefore, the concentration of the combustible gas in the accommodating chamber 110 is detected by the first detection element 410. When the concentration of the combustible gas is greater than or equal to the preset concentration, an abnormal information signal is issued. When the control component receives the abnormal information signal, it disconnects the electrolyte pipeline 210 in time to avoid safety accidents.

[0084] It is understandable that the preset concentration can be adaptively set according to actual needs, and this embodiment does not limit this.

[0085] For example, the number of the first detection members 410 in the accommodating chamber 110 may be two, and the two first detection members 410 are arranged at intervals. The first detection member 410 may be connected to the inner wall of the protective cabinet 100 .

[0086] Reference Figure 3 and Figure 4 In some embodiments, the detection component 400 includes at least one second detection member 420, which is located below at least one of the electrolyte buffer tank 220 and the bubble removal tank 230, and is used to detect whether the electrolyte in at least one of the electrolyte buffer tank 220 and the bubble removal tank 230 is leaking. The second detection member 420 is configured to send an information abnormality signal to the control component when the second detection member 420 detects that the electrolyte in at least one of the electrolyte buffer tank 220 and the bubble removal tank 230 is leaking.

[0087] The electrolyte is flammable, and when the electrolyte in the electrolyte buffer tank 220 and the bubble removal tank 230 leaks, it is easy to cause safety accidents such as fire and explosion. Therefore, a second detection member 420 is set below the electrolyte buffer tank 220 and the bubble removal tank 230 to detect whether there is electrolyte leakage in the electrolyte buffer tank 220 and the bubble removal tank 230, so that when the electrolyte leaks, an abnormal information signal can be sent to the control component in time, so that the control component disconnects the electrolyte pipeline 210 and processes the leaked electrolyte, thereby avoiding safety accidents.

[0088] Exemplarily, the number of the second detection member 420 is one, and the second detection member can simultaneously detect whether the electrolyte in the electrolyte buffer tank 220 and the bubble removal tank 230 is leaking.

[0089] Reference Figure 4 In a specific implementation, a liquid collecting member 150 is provided under at least one of the electrolyte buffer tank 220 and the bubble removal tank 230 , and the liquid collecting member 150 is used to collect electrolyte leaked from at least one of the electrolyte buffer tank 220 and the bubble removal tank 230 , and the second detection member 420 is located in the liquid collecting member 150 .

[0090] The electrolyte leaked from the electrolyte buffer tank 220 and the bubble removal tank 230 is collected by the liquid collecting member 150 to facilitate detection by the second detection member 420 .

[0091] In a specific implementation, the second detection member 420 is a thin film leakage sensing belt, the liquid collecting member 150 is provided with a liquid collection groove, and the thin film leakage sensing belt is located at the bottom of the liquid collection groove.

[0092] The electrolyte collected by the liquid collecting member 150 is located at the bottom of the liquid storage tank. A thin film leakage sensing belt is arranged at the bottom of the liquid storage tank, so as to detect whether there is electrolyte in the liquid storage tank and whether the electrolyte leaks.

[0093] Reference Figure 4 In some embodiments, the detection component 400 includes a plurality of liquid level gauge groups 430 , and the liquid level gauge groups 430 are respectively disposed on the electrolyte buffer tank 220 and the bubble removal tank 230 .

[0094] The liquid level meter group 430 includes at least one liquid level meter 431, which is used to detect the liquid level of the electrolyte in the electrolyte buffer tank 220 and the bubble removal tank 230. The liquid level meter 431 is configured to send an information abnormality signal to the control component when it detects that the liquid level of at least one of the electrolyte buffer tank 220 and the bubble removal tank 230 exceeds a preset liquid level range.

[0095] When there is a lot of electrolyte in the electrolyte buffer tank 220 and the bubble removal tank 230, the electrolyte may overflow, which may easily lead to safety accidents such as fire or explosion. By arranging a liquid level meter group 430 on the electrolyte buffer tank 220 and the bubble removal tank 230 to detect the liquid level of the electrolyte in the electrolyte buffer tank 220 and the bubble removal tank 230, safety accidents can be avoided.

[0096] The number of the liquid level gauge 431 in the liquid level gauge group 430 is at least one. The greater the number of the liquid level gauges 431 , the higher the detection accuracy of the liquid level gauge group 430 .

[0097] In a specific implementation, the liquid level gauge group 430 includes at least two liquid level gauges 431 , and each liquid level gauge 431 has a different height.

[0098] Among them, by setting at least two liquid level gauges 431 at different heights, the liquid level gauge group 430 can achieve higher liquid level detection accuracy for the electrolyte in the electrolyte buffer tank 220 or the bubble removal tank 230 .

[0099] Exemplarily, the liquid level gauge group 430 includes four liquid level gauges 431, two of which are located at the upper part of the electrolyte buffer tank 220 or the bubble removal tank 230. When the liquid level gauge 431 located at the upper part detects that the electrolyte buffer tank 220 or the bubble removal tank 230 exceeds a preset liquid level range, it indicates that the liquid level of the electrolyte in the electrolyte buffer tank 220 or the bubble removal tank 230 is high, and the electrolyte may overflow, and safety accidents such as fire or explosion may occur.

[0100] The other two liquid level gauges 431 are located at the lower part of the electrolyte buffer tank 220 or the bubble removal tank 230. When the liquid level gauge 431 located at the lower part detects that the electrolyte buffer tank 220 or the bubble removal tank 230 exceeds the preset liquid level range, it means that the amount of electrolyte is small, which will result in poor quality of the electrolyte.

[0101] Furthermore, the liquid level meters 431 are arranged in sequence along the vertical direction.

[0102] In some embodiments, pressure detection components are provided in the electrolyte buffer tank 220 and the bubble removal tank 230, and the pressure detection components are used to detect the pressure in the electrolyte buffer tank 220 and the bubble removal tank 230, and send an abnormal information signal to the control component when the pressure is greater than or equal to a preset pressure.

[0103] In some embodiments, the safety management mechanism also includes an alarm component, which is electrically connected to the detection component 400. When the detection component 400 detects that the information is abnormal, the alarm component issues an alarm prompt to remind the operator so that the operator can take safety measures in time, for example, disconnect the electrolyte pipeline 210 to prevent safety accidents.

[0104] The alarm prompt may be at least one of a warning light and an alarm sound.

[0105] Exemplarily, the alarm device is an audible and visual alarm.

[0106] Reference Figure 3 In some embodiments, the safety management mechanism further includes at least one fire extinguishing element 600, which is located in the accommodating chamber 110. The fire extinguishing element 600 is used to detect the temperature in the accommodating chamber 110, and spray a fire extinguishing substance toward the electrolyte buffer assembly 200 when the temperature is greater than or equal to a preset temperature.

[0107] When the temperature in the receiving chamber 110 is too high, the electrolyte is more likely to burn. Therefore, a fire extinguishing element 600 is provided in the receiving chamber 110 to reduce the temperature in the receiving chamber 110 by spraying a fire extinguishing substance when the temperature in the receiving chamber 110 is too high. If the electrolyte in the receiving chamber 110 has begun to burn, the fire extinguishing substance can extinguish the flame to prevent the flame from spreading further.

[0108] It is understandable that the preset temperature can be adaptively set according to actual needs, and this embodiment does not limit this.

[0109] Exemplarily, the accommodating chamber 110 includes a first partition 111 and a second partition 112, the first partition 111 is located above the second partition 112, the electrolyte buffer tank 220 and the bubble removal tank 230 are both located in the second partition 112, and the fire extinguishing element 600 is located in the first partition 111. When the temperature is greater than or equal to the preset temperature, the fire extinguishing element 600 sprays the fire extinguishing substance toward the second partition 112.

[0110] In a specific implementation, the fire extinguishing element 600 is an ultra-fine dry powder fire extinguisher.

[0111] The ultra-fine dry powder fire extinguisher sprays dry powder to reduce the temperature in the accommodating chamber 110, and at the same time forms an isolation layer to quickly extinguish the flames and reduce the spread and expansion of the fire. In addition, the dry powder sprayed by the ultra-fine dry powder fire extinguisher can cover a large area and effectively extinguish the fire.

[0112] Furthermore, the fire extinguisher 600 is a hanging fire extinguisher. At least one hook is provided on the inner top surface of the protection cabinet 100, and the fire extinguisher 600 is correspondingly hung on the hook.

[0113] Reference Figure 2 and Figure 5 In some embodiments, the protective cabinet 100 includes a cabinet body 120 and a plurality of protective members 130 . The cabinet body 120 is frame-shaped and defines a receiving cavity 110 . The protective members 130 are connected to the peripheral side of the cabinet body 120 to close at least part of the peripheral side of the receiving cavity 110 .

[0114] The cabinet 120 is provided to connect and support the protective member 130, and the protective member 130 is provided to close at least part of the peripheral side of the accommodating cavity 110, thereby separating the electrolyte buffer tank 220 and the bubble removal tank 230 from the external area.

[0115] Exemplarily, the cabinet 120 is a steel frame.

[0116] Furthermore, at least two legs 160 are disposed on the cabinet 120 to support the cabinet 120 .

[0117] Reference Figure 6 and Figure 7 In some embodiments, the protective member 130 includes a protective glass 131 and a protective net 132 , wherein the protective net 132 covers the protective glass 131 , or the protective net 132 is embedded in the protective glass 131 .

[0118] The protective glass 131 and the protective net 132 are provided to prevent the protective element 130 from breaking and splashing due to changes in temperature and pressure in the accommodating chamber 110 when a fire or explosion occurs in the accommodating chamber 110, thereby improving the safety of the protective element 130.

[0119] Exemplarily, the protection net 132 is a wire mesh.

[0120] In some examples, the protective glass 131 may be microcrystalline glass or explosion-proof glass. Microcrystalline glass has high strength and hardness, and good high temperature resistance and corrosion resistance. Explosion-proof glass has extremely high impact resistance and explosion-proof performance. The protective net 132 may cover at least one side of the protective glass 131.

[0121] In other embodiments, the protective glass 131 may be a sandwich glass, which has high safety and will not fly apart even if broken. The protective net 132 may be embedded in the sandwich glass.

[0122] Reference Figure 6 In a specific implementation, the cabinet 120 has at least two installation slots 122 , and one side of the protective member 130 is inserted into the installation slot 122 .

[0123] It is convenient for the protective member 130 to be inserted into the installation slot 122 , thereby facilitating the connection between the protective member 130 and the cabinet 120 .

[0124] Specifically, the cabinet body 120 is a cubic frame, and the cabinet body 120 includes a plurality of support rods 121 . The support rods 121 are collectively arranged to form a receiving cavity 110 , and the mounting grooves 122 are located on the support rods 121 .

[0125] Exemplarily, the shape of the mounting groove 122 can match the shape of one side of the protective member 130. The thickness of the protective glass 131 is 5 mm, the thickness of the protective net 132 is 3 mm, and the protective net 132 covers one side of the protective glass 131. The width of the notch of the mounting groove 122 is 8 mm, and the protective glass 131 and the protective net 132 are embedded in the mounting groove 122 together.

[0126] In other examples, the shape of the mounting groove 122 may be a dovetail groove or a T-slot.

[0127] Reference Figure 6 In a specific implementation, the protective cabinet 100 further includes at least one baffle 140 , which is connected to at least one of the cabinet body 120 and the protective member 130 to shield the connection between the cabinet body 120 and the protective member 130 .

[0128] When the electrolyte splashes in the accommodating chamber 110, it will splash onto the protective member 130 and the cabinet 120, and may flow to the outside of the protective cabinet 100 through the connection between the protective member 130 and the cabinet 120. Contact with the electrolyte will cause various hazards to human health and safety. Therefore, at least one baffle 140 is provided to shield the connection between the cabinet 120 and the protective member 130 to prevent the electrolyte from flowing out from the connection between the protective member 130 and the cabinet 120.

[0129] Exemplarily, the baffle 140 includes a first section and a second section disposed on one side of the first section, and the first section is inclined relative to the second section. Further, the first section may be perpendicular to the second section.

[0130] In some examples, the support rod 121 has an angle, the first section and the second section of the baffle 140 are respectively connected to the two sides of the angle, and at least one of the first section and the second section partially blocks the protective member 130 to block the connection between the support rod 121 and the protective member 130.

[0131] In other examples, one of the first section and the second section of the baffle 140 is connected to the support rod 121 , and the other one partially blocks the protective member 130 to block the connection between the support rod 121 and the protective member 130 .

[0132] In a specific implementation, one side of at least one protection member 130 is hinged to the cabinet 120 , and the protection member 130 rotates relative to the cabinet 120 to open or close the accommodating cavity 110 .

[0133] The protective member 130 has a first side and a second side, the first side and the second side are arranged opposite to each other, at least two hinges are arranged on the first side, the hinges are hinged to the cabinet 120, and the protective member 130 rotates relative to the first side to open or close the accommodating cavity 110. Therefore, it is convenient to open the accommodating cavity 110, and it is convenient for the operator to process the abnormal information in the accommodating cavity 110.

[0134] Exemplarily, a seal is provided on the second side, and when the accommodating chamber 110 is closed, the seal seals the second side and the cabinet 120 to seal the accommodating chamber 110, so as to prevent the electrolyte from splashing out through the gap between the second side and the cabinet 120. In some examples, the seal may be a silicone rubber member.

[0135] A handle 133 is provided on the second side of the protection member 130 . The protection member 130 can be rotated relative to the first side by operating the handle 133 , thereby facilitating the protection member 130 to rotate relative to the cabinet.

[0136] Furthermore, a baffle 140 is provided between the cabinet 120 and the first side of the protection member 130 to shield the gap between the first side of the protection member 130 and the cabinet 120 to prevent the electrolyte from flowing out through the gap between the first side and the cabinet 120 when splashing occurs.

[0137] Reference Figure 1 and Figure 5 In some embodiments, at least one protective member 130 is connected to the top of the cabinet 120 , and an opening 113 is formed at the top of the cabinet 120 . The opening 113 is connected to the accommodating chamber 110 , and the electrolyte pipeline 210 enters the accommodating chamber 110 through the opening 113 .

[0138] The opening 113 is provided so that the electrolyte pipeline 210 can enter the receiving chamber 110 and communicate with the bubble removal tank 230. The opening 113 can balance the pressure inside the receiving chamber 110 with the pressure outside the receiving chamber 110, thereby preventing an explosion caused by excessive pressure when a fire occurs in the receiving chamber 110.

[0139] At least one protective member 130 is connected to the top of the cabinet 120, and the opening 113 is located on one side of the protective member 130, that is, the top of the protective cabinet 100 is not completely open, and the top portion of the protective cabinet 100 forms an opening 113, and the opening 113 is relatively small, so that the flow of air between the accommodating chamber 110 and the outside air is less, so as to avoid a large amount of outside air entering the accommodating chamber 110 through the opening 113 when a fire occurs in the accommodating chamber 110, thereby causing a larger fire. In addition, relative to the electrolyte buffer tank 220 and the bubble removal tank 230, the distance between the fire extinguishing member 600 and the opening 113 is relatively close, and the larger opening 113 will make the surrounding temperature of the fire extinguishing member 600 lower than the surrounding temperature of the electrolyte buffer tank 220 and the bubble removal tank 230, thereby causing a delay in the time for the fire extinguishing member 600 to spray the fire extinguishing substance.

[0140] Exemplarily, two protection members 130 are connected to the top of the cabinet 120 , and an opening 113 is formed between the two protection members 130 .

[0141] Reference Figure 3 In a specific implementation, the electrolyte buffer assembly 200 further includes at least one filter element 240 , and the filter element 240 is used to connect the electrolyte with the bubble removal tank 230 .

[0142] Among them, the electrolyte pipeline 210 is connected to the liquid inlet of the filter element 240, and the liquid outlet of the filter element 240 is connected to the liquid inlet of the bubble removal tank 230, so that impurities in the electrolyte can be filtered out through the filter element 240 before the electrolyte enters the bubble removal tank 230.

[0143] Exemplarily, the filter element 240 is an electrolyte filter and is connected to the inner wall of the protective cabinet 100 .

[0144] Furthermore, the number of filters 240 is equal to the number of bubble removal tanks 230 , and the filters 240 correspond to the bubble removal tanks 230 one by one. The filters 240 are located on one side of the bubble removal tanks 230 to facilitate the connection between the filters 240 and the bubble removal tanks 230 .

[0145] Reference Figure 3 In a specific implementation, the electrolyte cache assembly 200 also includes at least one first drive pump 250 , and the first drive pump 250 is connected to the electrolyte cache tank 220 .

[0146] The first driving pump 250 is connected to the liquid outlet of the electrolyte buffer tank 220 , and the electrolyte in the electrolyte buffer tank 220 is injected into the battery cell through the first driving pump 250 .

[0147] Exemplarily, the first drive pump 250 is an electric pump, and the first drive pump 250 is electrically connected to the injection control component. When the injection control component controls the first drive pump 250 to be turned on, the first drive pump 250 drives the electrolyte in the electrolyte buffer tank 220 to be injected into the battery cell. When the injection control component controls the first drive pump 250 to be turned off, the first drive pump 250 stops working.

[0148] Furthermore, the first driving pump 250 is connected to the inner wall of the protective cabinet 100 , and the first driving pump 250 is located on one side of the electrolyte buffer tank 220 , so that the first driving pump 250 is in communication with the electrolyte buffer tank 220 .

[0149] Reference Figure 3 and Figure 4 In some embodiments, the electrolyte cache device provided in the embodiments of the present application also includes a cleaning liquid cache assembly 300, the cleaning liquid cache assembly 300 includes a cleaning liquid pipeline 310, a cleaning liquid cache tank 320 and a waste liquid tank 330, the cleaning liquid cache tank 320 and the waste liquid tank 330 are both located in the accommodating cavity 110, the cleaning liquid pipeline 310 is used to input cleaning liquid into the cleaning liquid cache tank 320, and the cleaning liquid cache tank 320 is connected to the waste liquid tank 330.

[0150] Exemplarily, the cleaning liquid is DMC (dimethyl carbonate).

[0151] Specifically, the liquid inlet of the cleaning liquid buffer tank 320 is connected to the external cleaning liquid through the cleaning liquid pipeline 310 to transport the external cleaning liquid into the cleaning liquid buffer tank 320. Before injecting the electrolyte into the battery cell through the liquid injection equipment, the liquid injection station on the liquid injection equipment needs to be cleaned first. Therefore, the liquid outlet of the cleaning liquid buffer tank 320 is connected to the liquid injection station to transport the cleaning liquid to the liquid injection station, and then the liquid injection station can be cleaned. The liquid inlet of the waste liquid tank 330 is connected to the liquid injection station to collect the waste liquid after cleaning the liquid injection station, and the waste liquid after cleaning is recycled and reused, which reduces pollution to the environment.

[0152] Furthermore, at least one liquid level gauge 431 is provided on the waste liquid tank 330, and the liquid level gauge 431 is provided at the upper part of the waste liquid tank 330. When the liquid level gauge 431 detects that the liquid level of the waste liquid in the waste liquid tank 330 is higher than the preset liquid level range of the waste liquid tank 330, it indicates that there is too much waste liquid in the waste liquid tank 330, and the waste liquid tank 330 needs to be replaced or the waste liquid in the waste liquid tank 330 needs to be discharged to avoid the waste liquid in the waste liquid tank 330 from overflowing.

[0153] At least two liquid level gauges 431 are provided on the cleaning liquid buffer tank 320, and the liquid level gauges 431 are respectively provided at the upper part and the lower part of the cleaning liquid buffer tank 320. When the liquid level gauge 431 detects that the liquid level of the cleaning liquid in the cleaning liquid buffer tank 320 is higher than the preset liquid level range of the cleaning liquid buffer tank 320, it means that there is too much cleaning liquid in the cleaning liquid buffer tank 320, and it is necessary to stop or slow down the input of cleaning liquid into the cleaning liquid buffer tank 320 to avoid the cleaning liquid in the cleaning liquid buffer tank 320 from overflowing. When the liquid level gauge 431 detects that the liquid level of the cleaning liquid in the cleaning liquid buffer tank 320 is lower than the preset liquid level range of the cleaning liquid buffer tank 320, it means that there is too little cleaning liquid in the cleaning liquid buffer tank 320, which will affect the cleaning effect of the cleaning liquid filling station.

[0154] It is understandable that a control valve 500 is also provided on the cleaning liquid pipeline 310 .

[0155] Reference Figure 3 In a specific implementation, the cleaning liquid cache assembly 300 further includes at least one second driving pump 340 , and the second driving pump 340 is connected to the cleaning liquid cache tank 320 .

[0156] The second driving pump 340 is connected to the liquid outlet of the cleaning liquid buffer tank 320 to drive the cleaning liquid in the cleaning liquid buffer tank 320 to flow to the liquid injection station and increase the pressure of the cleaning liquid to facilitate cleaning of the liquid injection station.

[0157] Exemplarily, the second driving pump 340 is a pneumatic pump and is located at one side of the cleaning liquid buffer tank 320 , so that the second driving pump 340 is in communication with the cleaning liquid buffer tank 320 .

[0158] Reference Figure 3 and Figure 4 In a specific implementation, the cleaning liquid buffer tank 320 is located below the waste liquid tank 330 to facilitate communication between the cleaning liquid buffer tank 320 and the waste liquid tank 330 , and the electrolyte buffer tank 220 is located below the bubble removal tank 230 to facilitate communication between the electrolyte buffer tank 220 and the bubble removal tank 230 .

[0159] Among them, by arranging the waste liquid tank 330 and the bubble removal tank 230 above the cleaning liquid cache tank 320 and the electrolyte cache tank 220 respectively, compared with placing the cleaning liquid cache tank 320, the waste liquid tank 330, the electrolyte cache tank 220 and the bubble removal tank 230 on the same layer, the projection area of ​​the cleaning liquid cache tank 320, the waste liquid tank 330, the electrolyte cache tank 220 and the bubble removal tank 230 on the ground is smaller, thereby making the space on the ground occupied by the electrolyte cache device smaller, thereby facilitating the arrangement of the electrolyte cache device.

[0160] Reference Figure 3 and Figure 4 In some embodiments, the electrolyte cache device provided in the embodiments of the present application also includes a vacuum cache assembly 700, the vacuum cache assembly 700 includes a vacuum pipeline 710 and a vacuum tank 720, the vacuum pipeline 710 is used to connect the vacuum source with the vacuum tank 720, and the vacuum tank 720 is connected to at least one of the bubble removal tank 230 and the waste liquid tank 330.

[0161] The vacuum tank 720 is connected to the bubble removal tank 230 to remove bubbles in the electrolyte by vacuuming. The vacuum tank 720 is connected to the waste liquid tank 330 to provide negative pressure to the waste liquid tank 330 through the vacuum tank 720, so that the waste liquid tank 330 can suck the waste liquid on the injection station into the tank. By setting the vacuum pipeline and the vacuum tank 720, the pressure fluctuation during vacuuming and providing negative pressure is reduced, so that the vacuuming and providing negative pressure are relatively stable.

[0162] Exemplarily, the vacuum tank 720 is in communication with both the bubble removal tank 230 and the waste liquid tank 330 .

[0163] In some examples, there are two bubble removal tanks 230, and the vacuum tank 720, the cleaning liquid buffer tank 320, the waste liquid tank 330, the electrolyte buffer tank 220 and the two bubble removal tanks 230 are arranged in two layers, the waste liquid tank 330 and the two bubble removal tanks 230 are located in the upper layer, and the cleaning liquid buffer tank 320, the vacuum tank 720 and the electrolyte buffer tank 220 are located in the lower layer. Among them, the waste liquid tank 330 is located directly above the cleaning liquid buffer tank 320, one of the bubble removal tanks 230 is located directly above the vacuum tank 720, and the other bubble removal tank 230 is located directly above the electrolyte buffer tank 220, and in order to facilitate the vacuum tank 720 to communicate with the waste liquid tank 330, the vacuum tank 720 is located between the cleaning liquid buffer tank 320 and the electrolyte buffer tank 220.

[0164] In some examples, three protection members 130 are hinged to the cabinet 120, and the first protection member 130 is opposite to the waste liquid tank 330 and the cleaning liquid buffer tank 320. The first protection member 130 is rotated relative to the cabinet 120 to open the receiving chamber 110, so that the waste liquid tank 330 and the cleaning liquid buffer tank 320 are exposed. The second protection member 130 is opposite to the vacuum tank 720 and the bubble removal tank 230 located above the vacuum tank 720. The second protection member 130 is rotated relative to the cabinet 120 to open the receiving chamber 110, so that the vacuum tank 720 and the bubble removal tank 230 located above the vacuum tank 720 are exposed. The third protective member 130 is opposite to the electrolyte buffer tank 220 and the bubble removal tank 230 located above the electrolyte buffer tank 220. The third protective member 130 is rotated relative to the cabinet 120 to open the accommodating cavity 110, so that the electrolyte buffer tank 220 and the bubble removal tank 230 located above the electrolyte buffer tank 220 are exposed. Therefore, when processing abnormal information, the corresponding protective member 130 can be operated according to the specific abnormal information.

[0165] It is understandable that a control valve 500 is also provided on the vacuum line 710 .

[0166] Reference Figure 4 In a specific implementation, the electrolyte buffer device provided in the embodiment of the present application also includes at least one gas-liquid separator 800 , and the gas-liquid separator 800 connects the vacuum tank 720 with at least one of the bubble removal tank 230 and the waste liquid tank 330 .

[0167] Among them, the bubble removal tank 230 contains electrolyte, and the waste liquid tank 330 contains cleaned waste liquid. Both the electrolyte and the waste liquid are liquid. In order to prevent the volatilized electrolyte and the volatilized waste liquid from entering the vacuum tank 720 and affecting the vacuum effect of the vacuum tank 720, a gas-liquid separator 800 is arranged between the vacuum tank 720 and the bubble removal tank 230 and between the vacuum tank 720 and the waste liquid tank 330. The volatilized electrolyte and the volatilized waste liquid are condensed by the gas-liquid separator 800 to prevent the volatilized electrolyte and the volatilized waste liquid from entering the vacuum tank 720.

[0168] On the basis of the above embodiments, the present application provides a liquid injection device, including a device body and an electrolyte cache device provided in any of the above embodiments, wherein the electrolyte cache tank 220 of the electrolyte cache device is connected to the device body.

[0169] Among them, the structure of the electrolyte buffer device has been described in detail in the above embodiments and will not be repeated here.

[0170] The electrolyte buffer tank 220 is in communication with the device body to provide electrolyte to the device body, and the device body is used to inject the electrolyte into the battery cell.

[0171] The liquid injection equipment provided in the embodiment of the present application, the electrolyte buffer device is provided with a protective cabinet 100, the protective cabinet 100 has a receiving chamber 110, the electrolyte buffer tank 220 and the bubble removal tank 230 are both placed in the receiving chamber 110, and the electrolyte buffer tank 220 and the bubble removal tank 230 are protected by providing the protective cabinet 100. At the same time, the space in the receiving chamber 110 is relatively closed, and the conditions for setting up a safety management mechanism are met. It is more convenient to set up a safety management mechanism in the receiving chamber 110. By setting a detection component 400 to detect the information in the receiving chamber 110, it is convenient to perform safety management on the electrolyte pipeline 210, the electrolyte buffer tank 220 and the bubble removal tank 230, and reduce the occurrence of safety accidents. By setting a control component, when the detection component 400 detects that the information is abnormal, the control component controls the electrolyte pipeline 210 to be disconnected from the electrolyte to block the transmission of the electrolyte, so that the electrolyte cannot continue to be input into the bubble removal tank 230. Therefore, by setting up a detection component and a control component, the electrolyte buffer tank 220 and the bubble removal tank 230 are safely managed to prevent the occurrence of safety accidents such as combustion or explosion.

[0172] The terms "first", "second", etc. in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present application described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0173] In the embodiments of the present application, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have specific orientations, or to be constructed and operated in specific orientations. Moreover, in addition to being used to indicate orientations or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present application can be understood according to the specific circumstances.

[0174] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0175] Unless otherwise stated, the term "plurality" means two or more.

[0176] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the scope of the present application is limited only by the appended claims.

Claims

1. An electrolyte buffer device, characterized in that: include: A protection cabinet (100), an electrolyte buffer assembly (200) and a safety management mechanism, wherein the protection cabinet (100) has a containing chamber (110); The electrolyte cache assembly (200) comprises an electrolyte pipeline (210), an electrolyte cache tank (220) and a bubble removal tank (230); the electrolyte cache tank (220) and the bubble removal tank (230) are both located in the accommodating cavity (110); the electrolyte pipeline (210) is used to input electrolyte into the bubble removal tank (230); and the bubble removal tank (230) is in communication with the electrolyte cache tank (220); The safety management mechanism comprises a detection component (400) and a control component electrically connected to the detection component (400), wherein the detection component (400) is used to detect information in the containing chamber (110), and when the information is abnormal, the control component controls the electrolyte pipeline (210) to be disconnected from the electrolyte.

2. The electrolyte buffer device according to claim 1, characterized in that: The control component comprises at least one control valve (500), and the control valve (500) is arranged in the electrolyte pipeline (210).

3. The electrolyte buffer device according to claim 2, characterized in that: The control valve (500) includes at least one of a manual valve and an automatic valve.

4. The electrolyte buffer device according to claim 2, characterized in that: The control valve (500) comprises a manual valve, and the manual valve is located outside the accommodating chamber (110).

5. The electrolyte buffer device according to claim 2, characterized in that: The control component further comprises at least one control element, and the control valve (500) and the detection component (400) are both electrically connected to the control element.

6. The electrolyte buffer device according to claim 1, characterized in that: The detection component (400) comprises at least one first detection component (410), wherein the first detection component (410) is used to detect the concentration of the combustible gas in the accommodating cavity (110), and the first detection component (410) is configured to send an abnormal information signal to the control component when it detects that the concentration of the combustible gas in the accommodating cavity (110) is greater than or equal to a preset concentration.

7. The electrolyte buffer device according to claim 1, characterized in that: The detection assembly (400) comprises at least one second detection member (420), the second detection member (420) being located below at least one of the electrolyte buffer tank (220) and the bubble removal tank (230), the second detection member (420) being used to detect whether the electrolyte in at least one of the electrolyte buffer tank (220) and the bubble removal tank (230) is leaking; The second detection component (420) is configured to send the abnormal information signal to the control component when a leakage of the electrolyte in at least one of the electrolyte buffer tank (220) and the bubble removal tank (230) is detected.

8. The electrolyte buffer device according to claim 7, characterized in that: A liquid collecting member (150) is provided below at least one of the electrolyte buffer tank (220) and the bubble removal tank (230), and the liquid collecting member (150) is used to collect the electrolyte leaked from at least one of the electrolyte buffer tank (220) and the bubble removal tank (230), and the second detection member (420) is located in the liquid collecting member (150).

9. The electrolyte buffer device according to claim 8, characterized in that: The second detection member (420) is a thin film leakage sensing belt, the liquid collecting member (150) is provided with a liquid collection groove, and the thin film leakage sensing belt is located at the bottom of the liquid collection groove.

10. The electrolyte buffer device according to claim 1, characterized in that: The detection component (400) comprises a plurality of liquid level gauge groups (430), and the liquid level gauge groups (430) are respectively arranged on the electrolyte buffer tank (220) and the bubble removal tank (230); The liquid level meter group (430) includes at least one liquid level meter (431), and the liquid level meter (431) is used to detect the liquid level of the liquid in the electrolyte buffer tank (220) and the bubble removal tank (230). The liquid level meter (431) is configured to send the information abnormality signal to the control component when it detects that the liquid level of at least one of the electrolyte buffer tank (220) and the bubble removal tank (230) exceeds a preset liquid level range.

11. The electrolyte buffer device according to claim 10, characterized in that: The liquid level gauge group (430) comprises at least two liquid level gauges (431), and the heights of the liquid level gauges (431) are different.

12. The electrolyte buffer device according to claim 1, characterized in that: The safety management mechanism further comprises an alarm component, which is electrically connected to the detection component (400). When the detection component (400) detects that the information is abnormal, the alarm component issues an alarm prompt.

13. The electrolyte buffer device according to claim 1, characterized in that: The safety management mechanism further comprises at least one fire extinguishing component (600), wherein the fire extinguishing component (600) is located in the accommodating chamber (110), and the fire extinguishing component (600) is used to detect the temperature in the accommodating chamber (110), and when the temperature is greater than or equal to a preset temperature, spray a fire extinguishing substance toward the electrolyte buffer assembly (200).

14. The electrolyte buffer device according to claim 13, characterized in that: The fire extinguishing element (600) is an ultra-fine dry powder fire extinguisher.

15. The electrolyte buffer device according to any one of claims 1 to 14, characterized in that: The protective cabinet (100) comprises a cabinet body (120) and a plurality of protective members (130); the cabinet body (120) is frame-shaped; the cabinet body (120) defines the accommodating cavity (110); and the protective members (130) are connected to the peripheral side of the cabinet body (120) to close at least part of the peripheral side of the accommodating cavity (110).

16. The electrolyte buffer device according to claim 15, characterized in that: The protective member (130) comprises a protective glass (131) and a protective net (132); the protective net (132) covers the protective glass (131), or the protective net (132) is embedded in the protective glass (131).

17. The electrolyte buffer device according to claim 15, characterized in that: The cabinet (120) is provided with at least two installation slots (122), and one side of the protection member (130) is inserted into the installation slot (122).

18. The electrolyte buffer device according to claim 17, characterized in that: The protective cabinet (100) further comprises at least one baffle (140), wherein the baffle (140) is connected to at least one of the cabinet body (120) and the protective member (130) so as to shield a connection between the cabinet body (120) and the protective member (130).

19. The electrolyte buffer device according to claim 15, characterized in that: One side of at least one of the protection members (130) is hinged to the cabinet (120), and the protection member (130) rotates relative to the cabinet (120) to open or close the accommodating cavity (110).

20. The electrolyte buffer device according to claim 15, characterized in that: At least one of the protective members (130) is connected to the top of the cabinet (120), and an opening (113) is formed at the top of the cabinet (120), the opening (113) is in communication with the accommodating cavity (110), and the electrolyte pipeline (210) enters the accommodating cavity (110) through the opening (113).

21. The electrolyte buffer device according to any one of claims 1 to 14, characterized in that: The electrolyte buffer assembly (200) further comprises at least one filter element (240), wherein the filter element (240) is used to connect the electrolyte with the bubble removal tank (230).

22. The electrolyte buffer device according to any one of claims 1 to 14, characterized in that: The electrolyte cache assembly (200) further comprises at least one first drive pump (250), wherein the first drive pump (250) is in communication with the electrolyte cache tank (220).

23. The electrolyte buffer device according to any one of claims 1 to 14, characterized in that: It also includes a cleaning liquid cache component (300), the cleaning liquid cache component (300) includes a cleaning liquid pipeline (310), a cleaning liquid cache tank (320) and a waste liquid tank (330), the cleaning liquid cache tank (320) and the waste liquid tank (330) are both located in the accommodating cavity (110), the cleaning liquid pipeline (310) is used to input cleaning liquid into the cleaning liquid cache tank (320), and the cleaning liquid cache tank (320) is connected to the waste liquid tank (330).

24. The electrolyte buffer device according to claim 23, characterized in that: The cleaning liquid cache assembly (300) further comprises at least one second driving pump (340), and the second driving pump (340) is connected to the cleaning liquid cache tank (320).

25. The electrolyte buffer device according to claim 23, characterized in that: The cleaning liquid buffer tank (320) is located below the waste liquid tank (330), and the electrolyte buffer tank (220) is located below the bubble removal tank (230).

26. The electrolyte buffer device according to claim 23, characterized in that: Also included is a vacuum cache assembly (700), wherein the vacuum cache assembly (700) includes a vacuum pipeline (710) and a vacuum tank (720); The vacuum pipeline (710) is used to connect the vacuum source with the vacuum tank (720), and the vacuum tank (720) is connected with at least one of the bubble removal tank (230) and the waste liquid tank (330).

27. The electrolyte buffer device according to claim 26, characterized in that: It also includes at least one gas-liquid separator (800), wherein the gas-liquid separator (800) is connected to the vacuum tank (720) and at least one of the bubble removal tank (230) and the waste liquid tank (330).

28. A liquid injection device, characterized in that: It comprises an equipment body and an electrolyte cache device as described in any one of claims 1 to 27, wherein an electrolyte cache tank (220) of the electrolyte cache device is connected to the equipment body.

Images