CN217035782U - Cabinet - Google Patents

Abstract

The application relates to the field of storage battery power supply, in particular to a cabinet. The rack includes quick-witted case, electric energy storage unit and heat dissipation component, the electric energy storage unit with heat dissipation component all set up in the inside of quick-witted case, the electric energy storage unit can supply power to outside direct current load, the heat dissipation component laminating electric energy storage unit, the inside cavity that is used for holding the coolant liquid that is provided with of heat dissipation component has solved current not only complicated processing degree of difficulty big to the radiating structure of battery, and occupation space is big, is unfavorable for the problem of the equipment overall arrangement in the rack.

Description

Machine cabinet

Technical Field

The application relates to the field of storage battery power supply, in particular to a cabinet.

Background

The uninterruptible power supply is widely applied to various industries, is an uninterruptible power supply unit with an energy storage device, and is mainly used for providing an uninterruptible power supply for partial equipment with higher requirements on power supply stability. In the data center industry, it is often installed inside a cabinet to provide power distribution and backup for the equipment in the cabinet. The traditional cabinet equipment uses an alternating current power supply to work, along with the continuous improvement of the technology, a large number of equipment using a direct current power supply to work replace the traditional equipment using the alternating current power supply to work, compared with the alternating current power supply, the application of the direct current power supply reduces the transmission loss of the power supply and improves the power conversion efficiency, and therefore, the direct current power supply distribution equipment and the direct current battery backup equipment are applied.

However, the direct current battery may generate thermal runaway, thermal diffusion and other accidents in the charging and discharging process, and further requires a heat dissipation structure to dissipate heat from the battery, however, the existing heat dissipation method is to attach a cold plate to the surface of the battery, to drive the liquid in the cold plate to flow circularly through a pump, and to dissipate heat and reduce temperature of the flowing liquid through a condensation assembly.

Therefore, the existing heat dissipation structure is complex in processing difficulty, large in occupied space and not beneficial to equipment layout in the cabinet.

SUMMERY OF THE UTILITY MODEL

The utility model provides a purpose provides a rack to it is big to have solved current not only complicated processing degree of difficulty to the radiating structure of battery, and occupation space is big, is unfavorable for the problem of the equipment overall arrangement in the rack.

According to the application, a cabinet is provided, the cabinet comprises a cabinet body, an electric energy storage unit and a heat dissipation component, the electric energy storage unit and the heat dissipation component are arranged inside the cabinet body, the electric energy storage unit can supply power to an external direct current load, the heat dissipation component is attached to the electric energy storage unit, and a cavity used for containing cooling liquid is arranged inside the heat dissipation component.

In any of the above technical solutions, further, the cabinet further includes a charging unit, the charging unit is disposed inside the chassis, the charging unit is connected between an anode of an external dc power supply and an anode of the electric energy storage unit, and the charging unit is configured to convert the electric power transmitted by the external dc power supply into predetermined electric power and transmit the converted predetermined electric power to the electric energy storage unit.

In any of the above technical solutions, further, the rack still includes first contactor, second contactor and diode, first contactor is connected the charging unit with between the positive pole in outside direct current power supply source, the second contactor is connected the positive pole of electric energy storage unit with between the positive pole in outside direct current power supply source, the diode is connected the second contactor with between the positive pole in outside direct current power supply source, the diode with the second contactor is established ties, first contactor with the second contactor is parallelly connected, the rack still includes the self-locking button, the self-locking button is used for control first contactor with the closure or the disconnection of second contactor.

In any of the above technical solutions, further, the electrical energy storage unit includes a plurality of battery units, the plurality of battery units are connected in series, any one of the plurality of battery units includes a plurality of batteries, the plurality of batteries of any one of the battery units are connected in series, the plurality of batteries of any one of the battery units are stacked, the cabinet includes a plurality of heat dissipation members, the plurality of heat dissipation members correspond to the plurality of battery units one to one, and a side portion of the heat dissipation member is attached to a side portion of one of the plurality of batteries in the battery unit corresponding to the heat dissipation member.

In any of the above technical solutions, further, the electric energy storage unit includes four battery units, any one of the four battery units includes three batteries, and the voltage of the battery is 4 v.

In any of the above technical solutions, the cabinet further includes a management unit, the management unit is disposed inside the chassis, the management unit is in communication connection with any one of the plurality of battery units, the management unit is configured to acquire a temperature and a voltage of any one of the plurality of battery units, the management unit stores a temperature range value and a voltage range value in advance, and the management unit alarms when a temperature value of any one of the plurality of battery units is greater than an upper limit value of the temperature range value or less than a lower limit value of the temperature range value, or when a voltage value of any one of the plurality of battery units is greater than the upper limit value of the voltage range value or less than the lower limit value of the voltage range value.

In any of the above technical solutions, further, the cabinet further includes a smoke detection unit, the smoke detection unit is disposed inside the case, the smoke detection unit includes a smoke detector and a controller, the smoke detector is configured to obtain a concentration in the case, the smoke detector stores a concentration fixed value in advance, when the concentration value is greater than the concentration fixed value, a first alarm signal is sent to the controller, the controller receives the first alarm signal sent by the smoke detector, and sends a second alarm signal to the management unit, and the management unit alarms.

In any of the above technical solutions, further, the cabinet further includes a fire extinguishing unit, the fire extinguishing unit is disposed inside the cabinet, the smoke detector is configured to obtain a temperature in the cabinet, the smoke detector stores a temperature threshold in advance, when the temperature value in the cabinet is greater than the temperature threshold, a third alarm signal is sent to the controller, the controller receives the third alarm signal sent by the smoke detector, and sends a fourth alarm signal to the management unit, the management unit gives an alarm, when the temperature value in the cabinet is greater than the temperature threshold, and when the concentration value is greater than the concentration setting value, the controller sends a fire extinguishing signal to the fire extinguishing unit, and the fire extinguishing unit extinguishes fire.

In any of the above technical solutions, further, a first indicator light and a second indicator light are disposed at an outer side portion of the chassis, the second indicator light is turned on in the alarm state of the management unit, and the first indicator light is turned on in the normal state of the management unit.

In any of the above technical solutions, further, the storage battery is a lithium iron phosphate battery.

According to the present application, a cabinet comprises a chassis, an electrical energy storage unit, and a heat dissipation member, wherein, the electric energy storage unit and the heat dissipation component are both arranged inside the case, the electric energy storage unit can supply power to an external direct current load, the heat dissipation component is attached to the electric energy storage unit, a cavity for containing cooling liquid is arranged inside the heat dissipation component, namely, when the electric energy storage unit generates heat in the charging and discharging processes, the cooling liquid in the heat dissipation component is gasified when reaching the boiling point with heat, absorbs the heat released by the electric energy storage unit, and then the gaseous cooling liquid liquefies when meeting cold (at the moment, the external temperature of the heat dissipation component is lower than the internal temperature of the heat dissipation component), releases heat in the liquefaction process, be about to heat transfer for outside air to this completion heat dissipation, the heat radiation structure of this application is simple, and occupation space is little, is favorable to the equipment overall arrangement in the rack.

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 shows an overall structural schematic of a cabinet according to an embodiment of the present application;

fig. 2 shows a top view of a cabinet according to an embodiment of the present application;

fig. 3 shows a schematic block diagram of a cabinet according to an embodiment of the present application;

fig. 4 illustrates a structural schematic diagram of a heat dissipation member according to an embodiment of the present application.

An icon: 1-a storage battery; 11-a battery cell; 2-a heat dissipating member; 3-a chassis; 4-managing the box; 41-a management unit; 42-a charging unit; 5-a fire extinguishing unit; 6-a smoke detection unit; 7-a current detection unit; 8-a connector; 9-fixing a bracket; 31-a front panel; 32-a rear panel; 33-a first indicator light; 34-a second indicator light; 10-a diode; 12-a first contactor; 13-a second contactor; 14-a self-locking button; 100-a housing; 200-cooling liquid; 300-heat conducting pad.

Detailed Description

The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, devices, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and/or systems described herein will be apparent to those skilled in the art in view of the disclosure of the present application. For example, the order of operations described herein is merely an example, which is not limited to the order set forth herein, but rather, may be changed in addition to operations that must occur in a particular order, as will be apparent upon an understanding of the present disclosure. Moreover, descriptions of features known in the art may be omitted for clarity and conciseness.

The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways to implement the methods, devices, and/or systems described herein that will be apparent upon understanding the present disclosure.

Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on," "connected to," coupled to, "over," or "overlying" another element, it may be directly "on," "connected to," coupled to, "over," or "overlying" the other element, or one or more other elements may be present therebetween. In contrast, when an element is referred to as being "directly on," "directly connected to," directly coupled to, "directly on" or "directly over" another element, there may be no intervening elements present.

As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.

Although terms such as "first", "second", and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section referred to in the examples described herein may be termed a second element, component, region, layer or section without departing from the teachings of the examples.

For ease of description, spatial relationship terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "upper" relative to other elements would then be oriented "below" or "lower" relative to the other elements. Thus, the term "above … …" includes both an orientation of "above … …" and "below … …" depending on the spatial orientation of the device. The device may also be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.

Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.

The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

The application provides a rack to it is big not only complicated processing degree of difficulty to have solved current structure to battery heat dissipation, and occupation space is big, is unfavorable for the problem of the equipment overall arrangement in the rack.

Before this application provided, current radiating mode was with the cold plate laminating in the battery surface, and liquid circulation through the pump drive in the cold plate flows, is cooling through the liquid heat dissipation of condensation subassembly to the flow. Therefore, the existing heat dissipation structure is complex in processing difficulty, large in occupied space and not beneficial to equipment layout in the cabinet.

In view of this, according to the present application, there is provided a cabinet, which includes a cabinet, an electrical energy storage unit, and a heat dissipation member, wherein the electrical energy storage unit and the heat dissipation member are both disposed inside the cabinet, the electrical energy storage unit is capable of supplying power to an external dc load, the heat dissipation member is attached to the electrical energy storage unit, and a cavity for accommodating a coolant 200 is disposed inside the heat dissipation member, that is, when the electrical energy storage unit generates heat during charging and discharging, the coolant 200 inside the heat dissipation member is gasified when heated to a boiling point, and absorbs the heat released by the electrical energy storage unit during gasification, and then the gaseous coolant 200 liquefies when cooled (at a temperature outside the heat dissipation member lower than a temperature inside the heat dissipation member), and releases heat during liquefaction, i.e., the heat is transferred to external air, so as to dissipate heat, the heat dissipation structure of the present application is simple, and the occupied space is small, which is beneficial to the equipment layout in the cabinet.

Specifically, the heat dissipation member 2 may be a heat dissipation plate, a side portion of the heat dissipation plate is attached to the electrical energy storage unit, as shown in fig. 4, a thermal pad 300 may be further disposed between the side portion of the heat dissipation plate and the electrical energy storage unit to increase efficiency of heat transfer, when the electrical energy storage unit releases heat, the coolant 200 may be boiled and gasified, and during the rising process of the gasified coolant 200, the coolant may be pre-cooled and liquefied rapidly (at this time, the temperature outside the housing 100 is lower than the temperature inside the housing 100), where the coolant 200 may be freon.

The specific structure and operation of the electrical energy storage unit will be described in detail hereinafter.

In the embodiment of the present application, as shown in fig. 1 to 3, the cabinet may further include a charging unit 42, the charging unit 42 is disposed inside the chassis, the charging unit 42 is connected between a positive electrode of the external dc power supply and a positive electrode of the electrical energy storage unit, the charging unit 42 is configured to convert the power transmitted by the external dc power supply into predetermined power and transmit the predetermined power after conversion to the electrical energy storage unit, that is, when the external direct current power supply source charges the electric energy storage unit, the charging unit 42 may convert the transmitted power into a predetermined power, to charge the electric energy storage unit, where the predetermined electric power may be an electric power that the electric energy storage unit can accept, for example, the voltage of the electrical energy storage unit is 48v, and the predetermined power may be, for example, 50v, and the specific voltage of the predetermined power is not particularly limited as long as the electrical energy storage unit can be charged.

Specifically, as shown in fig. 3, the cabinet may further include a first contactor 12, a second contactor 13, and a diode 10, the first contactor 12 is connected between the charging unit 42 and the positive electrode of the external dc power supply, the second contactor 13 is connected between the positive electrode of the electrical energy storage unit and the positive electrode of the external dc power supply, the diode 10 is connected between the second contactor 13 and the positive electrode of the external dc power supply, the diode 10 is connected in series with the second contactor 13, the first contactor 12 is connected in parallel with the second contactor 13, and the cabinet may further include a latching button 14, and the latching button 14 is used for controlling the closing or opening of the first contactor 12 and the second contactor 13. That is, when the field personnel starts the latching button 14, the first contactor 12 is closed, the second contactor 13 is opened, at this time, the external dc power supply may charge the electric energy storage unit, when the field personnel presses the latching button 14 again to close, the first contactor 12 is opened, the second contactor 13 is closed, at this time, the electric energy storage unit may supply power to the external dc load.

In the embodiment of the present application, as shown in fig. 1, the electric energy storage unit may include a plurality of battery cells 11, the plurality of battery cells 11 may be connected in series, any one of the plurality of battery cells 11 may include a plurality of batteries 1, the plurality of batteries 1 of any one of the battery cells 11 are connected in series, the plurality of batteries 1 of any one of the battery cells 11 are stacked, the cabinet may include a plurality of heat dissipation members 2, the plurality of heat dissipation members 2 correspond to the plurality of battery cells 11 one to one, and a side portion of the heat dissipation member 2 is attached to a side portion of one of the plurality of batteries 1 in the battery cell 11 corresponding to the heat dissipation member 2, where the battery 1 may be a lithium iron phosphate battery.

As an example, as shown in fig. 1, the electric energy storage unit may include four storage battery units 11, and any one of the four storage battery units 11 may include three storage batteries 1, that is, in order to increase a heat dissipation effect, 12 storage batteries 1 may be divided into four groups, and each three storage batteries 1 may be grouped and stacked, wherein a lowermost one of the storage batteries 1 is connected to the case 3, and a side of an uppermost one of the storage batteries 1 is connected to the heat dissipation member 2, and here, the voltage of each storage battery 1 may be 4v, that is, the voltage of the entire electric energy storage unit is 48v, and here, if an external dc load requires 48v, the voltage of each storage battery 1 may be set to 4.2v in order to prevent loss during battery power transmission. In addition, a fixing bracket 9 can be arranged in the cabinet to fix 4 groups of storage battery units 11.

In the embodiment of the present application, as shown in fig. 1 to 3, the cabinet may further include a management unit 41, the management unit 41 is disposed inside the housing 3, specifically, the management unit 41 and the charging unit 42 may be disposed inside the management box 4, the management unit 41 is in communication connection with any one of the plurality of battery cells 11 to detect the plurality of battery cells 11, specifically, when the battery cells 11 are in a charging state, the management unit 41 may obtain a temperature and a voltage of any one of the plurality of battery cells 11, the management unit 41 stores a temperature range value and a voltage range value in advance, when a temperature value of any one of the plurality of battery cells 11 is greater than an upper limit value of the temperature range value or less than a lower limit value of the temperature range value, or when a voltage value of any one of the plurality of battery cells 11 is greater than an upper limit value of the voltage range value or less than a lower limit value of the voltage range value, the management unit 41 will automatically alarm.

In addition, the cabinet may further include a current detection unit 7, the current detection unit 7 may detect a current of the main line, the management unit 41 stores a current range value in advance, and when the current value is greater than an upper limit value of the current range value or less than a lower limit value of the current range value, the management unit 41 may automatically alarm.

In addition, the cabinet may further include a smoke detection unit 6, the smoke detection unit 6 is disposed inside the chassis 3, the smoke detection unit 6 includes a smoke detector and a controller, the smoke detector may obtain a concentration in the chassis 3, the smoke detector stores a concentration fixed value in advance, when the concentration value is greater than the concentration fixed value, a first alarm signal is sent to the controller, the controller receives the first alarm signal sent by the smoke detector, and sends a second alarm signal to the management unit 41, and the management unit 41 may automatically alarm.

In addition, the cabinet may further include a fire extinguishing unit 5, the fire extinguishing unit 5 is disposed inside the cabinet 3, the smoke detector may obtain a temperature inside the cabinet 3, the smoke detector stores a temperature threshold in advance, when a temperature value inside the cabinet 3 is greater than the temperature threshold, a third alarm signal is sent to the controller, the controller receives the third alarm signal sent by the smoke detector and sends a fourth alarm signal to the management unit 41, and the management unit 41 may automatically alarm, where the smoke detecting unit 6 may be in communication connection with the management unit 41, and as an example, the smoke detecting unit 6 may send detected data to the management unit 41 through a CAN bus. When the temperature value in quick-witted case 3 was greater than the temperature threshold, and when the concentration value was greater than the concentration definite value, smoke detector can send fire extinguishing signal to controller, and the controller receives the signal of putting out a fire and sends the signal of putting out a fire to the unit of putting out a fire 5, and the unit of putting out a fire 5 can automatic fire extinguishing, that is to say, the fire extinguishing bottle can start to accomplish and put out a fire. Here, the fire extinguisher unit can adopt the non-pressure storage formula structural design, and high-efficient environmental protection fire extinguishing agent is equipped with to inside, compares with current pressure storage formula extinguishing device, and the volume is littleer, and is safer.

In the embodiment of the present application, as shown in fig. 1 to 3, the front panel 31 of the chassis 3 may be provided with a first indicator lamp 33 and a second indicator lamp 34, the second indicator lamp 34 is turned on in the alarm state of the management unit 41, and the first indicator lamp 33 is turned on in the normal state of the management unit 41. To help field personnel know the conditions inside the enclosure 3. Here, the normal state refers to a non-alarm state, and the first indicator lamp 33 may be a green indicator lamp and the second indicator lamp 34 may be a red indicator lamp. In addition, the rear panel 32 may be provided with a connector 8 to connect an external wire.

It is worth mentioning that the traditional direct current battery backup device uses a lead-acid battery as a battery core, has heavier weight and is not suitable for being applied to the data center industry. Although the weight problem has been solved to the equipment that adopts the lithium electricity as electric core, but the high active and flammable characteristic of lithium electricity does not solve, use and still have great risk in the data center trade, this application uses the lithium iron phosphate battery, the above technical problem has been solved, furthermore, this application adopts advanced liquid cooling heat dissipation, realize electrical power generating system 0 noise, adapt to more complicated operational environment, the temperature accommodation scope is wider, furthermore, this application can last the power supply for equipment in the complete machine cabinet 15min under the condition of the sudden power failure of rack system, furthermore, increase environmental protection fire control module, make entire system safer, stable in addition, increase control management module, each module running state of real-time monitoring.

According to the present application, a cabinet comprises a chassis, an electrical energy storage unit, and a heat dissipation member, wherein, the electric energy storage unit and the heat dissipation component are both arranged inside the case, the electric energy storage unit can supply power to an external direct current load, the heat dissipation component is attached to the electric energy storage unit, a cavity for containing cooling liquid is arranged inside the heat dissipation component, namely, when the electric energy storage unit generates heat in the charging and discharging processes, the cooling liquid in the heat dissipation component is gasified when reaching the boiling point with heat, absorbs the heat released by the electric energy storage unit, and then the gaseous cooling liquid liquefies when meeting cold (at this time, the external temperature of the heat dissipation member is lower than the internal temperature of the heat dissipation member), releases heat in the liquefaction process, be about to heat transfer for outside air to this completion heat dissipation, the heat radiation structure of this application is simple, and occupation space is little, is favorable to the equipment overall arrangement in the rack.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used for illustrating the technical solutions of the present application, but not limiting the same, and the scope of the present application is not limited thereto, and although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still make modifications or changes to the embodiments described in the foregoing embodiments, or make equivalent substitutions for some features, within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the exemplary embodiments of the present application, and are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A cabinet comprising a cabinet, an electrical energy storage unit, and a heat dissipating member,

the electric energy storage unit and the heat dissipation member are both arranged inside the case, the electric energy storage unit can supply power to an external direct current load, the heat dissipation member is attached to the electric energy storage unit, and a cavity used for containing cooling liquid is arranged inside the heat dissipation member.

2. The cabinet of claim 1, further comprising a charging unit disposed inside the cabinet, the charging unit being connected between a positive pole of an external DC power supply and a positive pole of the electrical energy storage unit,

the charging unit is used for converting the electric power transmitted by the external direct current power supply source into preset electric power and transmitting the converted preset electric power to the electric energy storage unit.

3. The cabinet of claim 2, further comprising a first contactor, a second contactor, and a diode, the first contactor being connected between the charging unit and a positive pole of the external DC power supply,

the second contactor is connected between the positive pole of the electric energy storage unit and the positive pole of the external direct current power supply source, the diode is connected between the second contactor and the positive pole of the external direct current power supply source, the diode is connected with the second contactor in series, the first contactor and the second contactor are connected in parallel,

the cabinet further comprises a self-locking button, and the self-locking button is used for controlling the first contactor and the second contactor to be closed or opened.

4. The cabinet of claim 1, wherein the electrical energy storage unit comprises a plurality of battery cells connected in series, any one of the plurality of battery cells comprises a plurality of batteries, the plurality of batteries of any one of the battery cells are connected in series, the plurality of batteries of any one of the battery cells are arranged in a stack,

the cabinet includes a plurality of heat dissipation members corresponding to the plurality of battery units one-to-one, and a side of the heat dissipation member is attached to a side of one of the plurality of batteries in the battery unit corresponding to the heat dissipation member.

5. The cabinet of claim 4, wherein the electrical energy storage unit comprises four of the battery cells, any one of the four battery cells comprising three batteries, the batteries having a voltage of 4 v.

6. The cabinet of claim 4, further comprising a management unit disposed within the enclosure, the management unit communicatively coupled to any of the plurality of battery cells,

the management unit is used for acquiring the temperature and the voltage of any one of the plurality of storage battery units, the management unit is stored with a temperature range value and a voltage range value in advance,

the management unit alarms when a temperature value of any one of the plurality of battery cells is greater than an upper limit value of the temperature range value or less than a lower limit value of the temperature range value, or when a voltage value of any one of the plurality of battery cells is greater than the upper limit value of the voltage range value or less than the lower limit value of the voltage range value.

7. The cabinet of claim 6, further comprising a smoke detection unit disposed inside the cabinet, the smoke detection unit comprising a smoke detector and a controller, the smoke detector to obtain a concentration within the cabinet,

the smoke detector is pre-stored with a concentration fixed value, when the concentration value is larger than the concentration fixed value, a first alarm signal is sent to the controller, the controller receives the first alarm signal sent by the smoke detector and sends a second alarm signal to the management unit, and the management unit gives an alarm.

8. The cabinet according to claim 7, further comprising a fire extinguishing unit disposed inside the cabinet, wherein the smoke detector is used for acquiring the temperature inside the cabinet, wherein the smoke detector stores a temperature threshold value in advance,

when the temperature value in the case is larger than the temperature threshold value, a third alarm signal is sent to the controller, the controller receives the third alarm signal sent by the smoke detector and sends a fourth alarm signal to the management unit, and the management unit gives an alarm,

when the temperature value in the case is larger than the temperature threshold value and the concentration value is larger than the concentration fixed value, the controller sends a fire extinguishing signal to the fire extinguishing unit, and the fire extinguishing unit extinguishes fire.

9. The cabinet according to any one of claims 6 to 8, wherein a first indicator light and a second indicator light are provided at an outer side portion of the cabinet, the second indicator light is turned on in the management unit alarm state, and the first indicator light is turned on in the management unit normal state.

10. The cabinet according to claim 4, wherein the battery is a lithium iron phosphate battery.

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