Novel intelligent power supply screen cabinet used in transformer substation

Abstract

The utility model provides a novel intelligent power supply screen cabinet used in a transformer station, comprising an input unit, a lithium iron phosphate battery pack, a control system module and a fire-fighting module, the control system module is electrically connected with the input unit and the lithium iron phosphate battery pack, and the fire-fighting module is electrically connected with the input unit and the lithium iron phosphate battery pack. The power supply module is used for supplying power to the input unit to work when the input unit is in a normal power supply state and acquiring power supply from the lithium iron phosphate battery pack when the input unit is in an abnormal power supply state, and the fire-fighting module comprises a fire-fighting unit and a fire-fighting standby battery; and the fire-fighting unit is electrically connected to the input unit and the fire-fighting standby battery in a switchable manner, so that the input unit supplies power when the input unit is in a normal power supply state, and the fire-fighting standby battery supplies power when the input unit is in an abnormal power supply state.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a novel intelligent power panel cabinet used in a transformer substation. Background Art

[0002] The DC power panel, also known as the distribution box, is a component of the power supply system. Its function is to distribute electrical energy to each auxiliary circuit, and to control and protect the power distribution. The existing power panel cabinet includes a mains input interface, a backup battery pack, a distribution unit and a cabinet body, wherein the mains input interface is provided in the cabinet body, and the backup battery pack and the distribution unit are accommodated in the cabinet body. When the mains power is normal, the mains input interface is used to connect electrical energy to the system of the power panel cabinet and to power the load, and at the same time, the backup battery pack is charged or float-charged. When the mains power is abnormal, such as power outage or voltage exceeds the power supply range, the backup battery pack is switched to power the system. Subsequently, when the mains power is restored, the mains input interface is restored to power the system, thereby ensuring that the power panel cabinet can maintain normal operation in the event of an abnormality in the mains power.

[0003] The backup battery packs used in existing power supply cabinets are mostly lead-acid batteries, and the technology is mature. However, due to the low energy density of lead-acid batteries, their volume and weight have not been effectively improved while meeting the corresponding capacity. This results in a large amount of space being reserved in the cabinet of the power supply cabinet to accommodate the backup battery pack. Specifically, in the existing power supply cabinet, the battery compartment will occupy more than 50% of the space in the cabinet, resulting in the layout of other circuits and equipment being limited under the standard size cabinet, which to a certain extent also restricts the functional development of the power supply cabinet. In order to meet the functional requirements of the power supply cabinet, the existing technology also adopts the method of placing the backup battery pack additionally to free up the space in the power supply cabinet. For specific reference Figure 1 As shown, Figure 1 A DC power supply panel disclosed in the Chinese utility model patent with patent announcement number CN209389460U has a DC power supply panel battery cabinet 7 independently set up next to the DC power supply panel control cabinet 1. That is to say, the existing power supply panel cabinet even needs to set up two cabinets to meet functional requirements.

[0004] Lead-acid batteries also tend to generate hydrogen when overcharged or in high-temperature environments, placing higher demands on the cabinet. These cabinets must meet certain sealing and explosion-proof requirements. Otherwise, they can easily cause safety hazards such as smoke and even explosions, leading to excessive cabinet costs. Lead-acid batteries also have strict temperature requirements, requiring safe operation within an ambient temperature of 20°C to 25°C. This places strict restrictions on the operating environment of existing power panels, limiting their flexibility.

[0005] Existing power supply cabinets are also equipped with fire protection modules to accurately detect fires in their early stages and automatically activate fire extinguishing mechanisms to ensure the normal operation of equipment and the safety of personnel. However, the fire protection module relies on the power supply of the mains input interface. When the mains power is abnormal, the fire protection module cannot function normally. Paradoxically, when a fire occurs, it often causes power supply abnormalities, resulting in the fire protection module being unable to function effectively. Utility Model Content

[0006] Another object of the present invention is to provide a new intelligent power panel cabinet for use in a substation, wherein the new intelligent power panel cabinet for use in the substation has a smaller battery volume than the existing power panel cabinet at the same capacity, thereby reducing the floor space occupied.

[0007] Another object of the present utility model is to provide a new type of intelligent power panel cabinet for use in a substation, wherein the new type of intelligent power panel cabinet for use in a substation can maintain power supply to the fire protection module under abnormal mains power conditions, so as to ensure the normal operation of the fire protection module under abnormal conditions and ensure the safety of the equipment.

[0008] Another object of the present utility model is to provide a new type of intelligent power panel cabinet for use in a substation, wherein the battery of the new type of intelligent power panel cabinet used in the substation can adapt to safe operation at an ambient temperature of 0°C to 50°C, thereby improving the environmental adaptability of the new type of intelligent power panel cabinet used in the substation.

[0009] Another object of the present utility model is to provide a new type of intelligent power panel cabinet for use in a substation, wherein the new type of intelligent power panel cabinet for use in the substation includes a control system module, a lithium iron phosphate battery pack, a fire protection module and an input unit, wherein the input unit of the new type of intelligent power panel cabinet for use in the substation is electrically connected to the live wire and the neutral wire of the mains power, wherein the control system module and the fire protection module are electrically connected to the input unit so that they can be powered by the input unit when the input unit is normally powered, wherein the lithium iron phosphate battery pack is electrically connected to the input unit so that it can be charged and stored in energy when the input unit is normally powered, wherein the control system module is selectively electrically connected to the lithium iron phosphate battery pack, and obtains power from the lithium iron phosphate battery pack in response to the abnormal power supply state of the input unit, so that it can work normally under abnormal mains power conditions.

[0010] Another object of the present utility model is to provide a new type of intelligent power supply cabinet for use in a substation, wherein the fire protection module includes a fire protection backup battery and a fire protection unit, wherein the fire protection backup battery is electrically connected to the input unit so as to be charged and stored with energy when the input unit is normally powered, wherein the fire protection unit is switchably electrically connected to the input unit and the fire protection backup battery so as to be powered by the input unit when the input unit is normally powered, and to be powered by the fire protection backup battery when the input unit is abnormally powered, thereby maintaining uninterrupted power supply to the fire protection unit.

[0011] Another object of the present utility model is to provide a new type of intelligent power supply cabinet for use in a substation, wherein the new type of intelligent power supply cabinet for use in a substation includes a switching switch, wherein the switching switch has a power supply input end, an emergency input end and an output end, wherein the power supply input end is electrically connected to the input unit, the emergency input end is electrically connected to the fire backup battery, and the output end is electrically connected to the fire unit, wherein the output end of the switching switch is configured to respond to the power supply status of the input unit and to be connected to the power supply input end when the input unit is normally powered, and to be connected to the emergency input end when the input unit is abnormally powered, so that the fire unit can respond to the power supply status of the input unit and to be connected to the input unit when the input unit is normally powered, and to be connected to the fire backup battery when the input unit is abnormally powered, thereby maintaining the normal operation of the fire module when the mains power is abnormal.

[0012] Another object of the present utility model is to provide a new type of intelligent power panel cabinet for use in a substation, wherein the new type of intelligent power panel cabinet for use in a substation includes a cabinet body, wherein the input unit is arranged in the cabinet body, wherein the lithium iron phosphate battery pack, the fire protection module and the control system module are layered and accommodated in the cabinet body to facilitate the inspection and maintenance of each module separately.

[0013] Another object of the present utility model is to provide a new type of intelligent power panel cabinet for use in a substation, wherein a fireproof partition is provided between the lithium iron phosphate battery pack, the fire protection module and the control system module, so as to physically isolate the lithium iron phosphate battery pack, the fire protection module and the control system module from the cabinet body based on the fireproof partition, so as to improve the safety protection of each module of the new type of intelligent power panel cabinet used in the substation, especially to effectively prevent a safety failure of one of the modules from affecting other modules.

[0014] Another object of the present invention is to provide a new type of intelligent power panel cabinet for use in a substation, wherein the lithium iron phosphate battery pack adopts lithium iron phosphate batteries. Then, while meeting the corresponding capacity requirements, the volume of the lithium iron phosphate battery pack can be reduced and can be easily placed in the cabinet.

[0015] Another object of the present utility model is to provide a new type of intelligent power panel cabinet for use in a substation, wherein the lithium iron phosphate battery pack adopts lithium iron phosphate batteries. Then, while meeting the corresponding capacity requirements, the volume of the lithium iron phosphate battery pack is reduced and can be placed in the same cabinet together with the fire protection module and the control system module.

[0016] Another object of the present utility model is to provide a new type of intelligent power panel cabinet for use in a substation, wherein the lithium iron phosphate battery pack accounts for less than or equal to 40% of the volume of the cabinet, so as to free up space in the cabinet and enrich the settings of other modules.

[0017] Another object of the present utility model is to provide a new type of intelligent power panel cabinet for use in a substation, wherein the lithium iron phosphate battery pack accounts for less than or equal to 40% of the volume of the cabinet. Therefore, when the lithium iron phosphate battery pack, the fire protection module and the control system module are all accommodated in the same cabinet, the space of the cabinet is sufficient to meet the use requirements of the new type of intelligent power panel cabinet used in the substation.

[0018] Another object of the present utility model is to provide a new type of intelligent power panel cabinet for use in a substation, wherein the lithium iron phosphate battery pack is accommodated in a lower position of the cabinet body, that is, the lithium iron phosphate battery pack is arranged at a position lower than the fire protection module and the control system module, so as to facilitate the counterweight setting of the new type of intelligent power panel cabinet used in the substation.

[0019] According to one aspect of the present invention, the present invention provides a new intelligent power supply panel cabinet for use in a substation, wherein the new intelligent power supply panel cabinet for use in a substation comprises:

[0020] an input unit;

[0021] a lithium iron phosphate battery pack, wherein the lithium iron phosphate battery pack is electrically connected to the input unit so as to be charged and stored when the input unit is normally powered;

[0022] a control system module, wherein the control system module is electrically connected to the input unit and the lithium iron phosphate battery pack, so as to be powered by the input unit when the input unit is normally powered, and to be powered by the lithium iron phosphate battery pack when the input unit is not normally powered; and

[0023] A fire protection module, wherein the fire protection module includes a fire protection backup battery and a fire protection unit, wherein the fire protection backup battery is electrically connected to the input unit so as to be charged and stored with energy when the input unit is normally powered, wherein the fire protection unit is switchably electrically connected to the input unit and the fire protection backup battery so as to be powered by the input unit when the input unit is normally powered, and to be powered by the fire protection backup battery when the input unit is abnormally powered.

[0024] In one embodiment, the new intelligent power supply cabinet used in the substation includes a switching switch, wherein the switching switch has a power input end, an emergency input end and an output end, wherein the power input end is electrically connected to the input unit, the emergency input end is electrically connected to the fire backup battery, and the output end is electrically connected to the fire unit, wherein the output end of the switching switch is configured to respond to the power supply status of the input unit and to be connected to the power input end when the input unit is normally powered, and to be connected to the emergency input end when the input unit is abnormally powered, so that the fire unit can respond to the power supply status of the input unit and to be connected to the input unit when the input unit is normally powered, and to be connected to the lithium iron phosphate battery pack when the input unit is abnormally powered.

[0025] In one embodiment, the new intelligent power panel cabinet used in the substation includes a cabinet body, wherein the lithium iron phosphate battery pack, the fire protection module and the control system module are layered and accommodated in the cabinet body.

[0026] In one embodiment, a fireproof partition is provided between the lithium iron phosphate battery pack, the fire protection module and the control system module.

[0027] In one embodiment, the novel intelligent power panel cabinet used in the substation includes a cabinet body, wherein the lithium iron phosphate battery pack includes a plurality of lithium iron phosphate batteries, and the plurality of lithium iron phosphate batteries are stacked in the cabinet body.

[0028] In one embodiment, the lithium iron phosphate battery pack and the fire protection module are arranged in the cabinet.

[0029] In one embodiment, the lithium iron phosphate battery pack accounts for less than or equal to 40% of the volume of the cabinet, and the lithium iron phosphate battery pack is accommodated at the bottom of the cabinet.

[0030] In one embodiment, the fire protection unit includes a sensor unit, a fire extinguisher unit, and an alarm unit, wherein the sensor unit is electrically connected to the fire extinguisher unit and the alarm unit, and is used to monitor the new intelligent power supply cabinet used in the substation.

[0031] In one embodiment, the fire extinguisher unit uses perfluorohexanone fire extinguishing agent.

[0032] In one embodiment, the fire fighting unit further comprises a control switch, wherein the control switch is electrically connected to the sensor unit and the input unit, and cuts off the power input to the input unit in response to an abnormality detected by the sensor unit.

[0033] Further objectives and advantages of the present invention will be fully reflected through understanding of the following description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a DC power supply screen with existing patent.

[0035] Figure 2 The figure is a structural block diagram of a new intelligent power panel cabinet used in a substation according to an embodiment of the present invention.

[0036] Figure 3 The figure is a schematic structural diagram of a new intelligent power panel cabinet used in a substation according to the above embodiment of the present utility model. DETAILED DESCRIPTION

[0037] The following description is intended to disclose the present invention and enable those skilled in the art to implement the present invention. The preferred embodiments described below are provided for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0038] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0039] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0040] With reference to the accompanying drawings of the present utility model Figure 2 and Figure 3 According to an embodiment of the present invention, a new type of intelligent power panel cabinet 10 for use in a substation is illustrated, wherein the new type of intelligent power panel cabinet 10 for use in the substation includes an input unit 11, a control system module 13, a lithium iron phosphate battery pack 14 and a fire protection module 12, wherein the input unit 11 of the new type of intelligent power panel cabinet 10 for use in the substation is electrically connected to the live wire and the neutral wire of the mains power, wherein the control system module 13 is electrically connected to the input unit 11, wherein the lithium iron phosphate battery pack 14 is electrically connected to the input unit 11 so as to be able to be charged and stored when the input unit 11 is normally powered, wherein the control system module 13 is also electrically connected to the lithium iron phosphate battery pack 14, and in response to the power supply of the input unit 11 when the input unit 11 is abnormally powered, the control system module 13 is powered by the lithium iron phosphate battery pack 14 and maintained in a working state, that is, the control system module 13 is maintained with uninterrupted power supply, and the present invention does not impose any restrictions on this.

[0041] In particular, in order to ensure the fire safety of the new intelligent power supply cabinet 10 used in the substation, in the present invention, the fire protection module 12 is also maintained with uninterrupted power supply, that is, when the mains power is abnormal, the fire protection module 12 can still maintain operation. Specifically, the fire protection module 12 includes a fire protection backup battery 121 and a fire protection unit 122, wherein the fire protection unit 122 is switchably electrically connected to the input unit 11 and the fire protection backup battery 121, so as to be powered by the input unit 11 when the input unit 11 is normally powered, and to be powered by the fire protection backup battery 121 when the input unit 11 is abnormally powered. That is to say, the fire protection unit 122 obtains power from the fire protection backup battery 121 in response to the abnormal power supply of the input unit 11, so that it can work normally when the mains power is abnormal.

[0042] In detail, the new intelligent power panel cabinet 10 used in the substation includes a switching switch 16, wherein the switching switch 16 has a power input terminal 161, an emergency input terminal 162 and an output terminal 163, wherein the power input terminal 161 is electrically connected to the input unit 11, the emergency input terminal 162 is electrically connected to the fire backup battery 161, and the output terminal 163 is electrically connected to the fire unit 122, wherein the output terminal 163 of the switching switch 16 is set to respond to the power supply status of the input unit 11. When the input unit 11 is normally powered, it is connected to the power input terminal 161, and when the output terminal 163 is electrically connected to the fire backup battery 161, it is connected to the fire backup battery 161. The state of abnormal power supply of the input unit 11 is connected to the emergency input terminal 162, so that the fire unit 122 can respond to the power supply state of the input unit 11 and be connected to the input unit 11 when the input unit 11 is normally powered, and be connected to the fire backup battery 121 when the input unit 11 is abnormally powered, and obtain power from the fire backup battery 121 when the mains power is abnormal, so that the normal operation of the fire unit 122 can be maintained when the mains power is abnormal, so as to continuously maintain the power supply to the fire unit 122 to ensure the normal operation of the fire unit 122 under abnormal conditions and ensure the safety of the equipment.

[0043] Furthermore, the new intelligent power panel cabinet 10 used in the substation includes a cabinet 15, wherein the input unit 11 is arranged in the cabinet 15, wherein the lithium iron phosphate battery pack 14, the fire protection module 12 and the control system module 13 are accommodated in the cabinet 15. In the present utility model, the lithium iron phosphate battery pack 14 is reduced in volume compared with the existing lead-acid battery while meeting the corresponding capacity requirements, and can be placed in the same cabinet 15 with the fire protection module 12 and the control system module 13.

[0044] Specifically, the lithium iron phosphate battery pack 14 uses lithium iron phosphate batteries, and the battery energy density is improved. While meeting the corresponding capacity requirements, the volume of the lithium iron phosphate battery pack 14 only occupies 1 / 3 to 1 / 4 of the volume of the existing lead-acid battery. Therefore, the new intelligent power panel cabinet 10 used in the substation does not need to set up an additional independent battery cabinet. The lithium iron phosphate battery pack 14, the fire protection module 12 and the control system module 13 can be placed in the same cabinet 15, which can reduce the floor space.

[0045] It is worth mentioning that, in the present invention, the volume of the lithium iron phosphate battery pack 14 in the cabinet 15 accounts for less than or equal to 40%, which is conducive to freeing up space in the cabinet 15 and enriching the configuration of other modules.

[0046] In particular, the volume of the lithium iron phosphate battery pack 14 in the cabinet 15 accounts for less than or equal to 40%. Therefore, when the lithium iron phosphate battery pack 14, the fire protection module 12 and the control system module 13 are all accommodated in the same cabinet 15, the space of the cabinet 15 is sufficient to meet the use requirements of the new intelligent power panel cabinet 10 used in the substation.

[0047] It is worth mentioning that the lithium iron phosphate battery pack 14 uses lithium iron phosphate batteries, which have improved adaptability to the working environment temperature and can work safely at an ambient temperature of 0°C to 50°C, thereby improving the environmental adaptability of the new intelligent power panel cabinet 10 used in the substation.

[0048] In particular, the lithium iron phosphate battery pack 14 uses lithium iron phosphate batteries, which can extend the service life of the lithium iron phosphate battery pack 14. In addition, the lithium iron phosphate battery pack 14 does not produce hydrogen, thereby effectively reducing safety issues caused by battery problems and helping to reduce the cost of the cabinet 15.

[0049] It is worth mentioning that the service life of the lithium iron phosphate battery pack 14 is more than twice that of the existing lead-acid battery, which can effectively reduce the replacement frequency of the lithium iron phosphate battery pack 14 and reduce maintenance costs.

[0050] Furthermore, the lithium iron phosphate battery pack 14 is accommodated in a lower position of the cabinet 15, that is, the lithium iron phosphate battery pack 14 is arranged at a lower position of the cabinet 15 compared to the fire protection module 12 and the control system module 14, so as to facilitate the counterweight setting of the new intelligent power panel cabinet 10 used in the substation.

[0051] It is worth mentioning that the lithium iron phosphate battery pack 14, the fire protection module 12 and the control system module 13 are layered and accommodated in the cabinet 15, so that each module can be inspected and maintained separately.

[0052] In particular, a fireproof partition is provided between the lithium iron phosphate battery pack 14, the fire protection module 12 and the control system module 13, so as to physically isolate the lithium iron phosphate battery pack 14, the fire protection module 12 and the control system module 13 from the cabinet 15 based on the fireproof partition, so as to improve the safety protection of each module of the new intelligent power panel cabinet 10 used in the substation, especially to effectively prevent a safety failure of one of the modules from affecting other modules.

[0053] It is worth mentioning that the lithium iron phosphate battery pack 14 includes a plurality of lithium iron phosphate batteries 141 , wherein the lithium iron phosphate batteries 141 are stacked in the cabinet 15 to facilitate reasonable allocation of space in the cabinet 15 .

[0054] In particular, in some embodiments, the lithium iron phosphate battery pack 14 is suitable for being arranged in a separate cabinet 15, wherein one of the fire protection modules 12 and the lithium iron phosphate battery pack 14 is arranged in one of the cabinets 15 to ensure the fire safety of the lithium iron phosphate battery pack 14, wherein the lithium iron phosphate batteries 141 of the lithium iron phosphate battery pack 14 are stacked and accommodated in the cabinet 15, and the number of layers of the lithium iron phosphate batteries 141 can be increased or decreased according to actual use needs, such as Figure 3 The location where the control system module 13 is originally set is a vacant area, and the lithium iron phosphate battery 141 can be added to the area according to usage needs.

[0055] Furthermore, the fire protection unit 122 includes a sensor unit, a fire extinguisher unit and an alarm unit, wherein the sensor unit is electrically connected to the fire extinguisher unit and the alarm unit, and is used to monitor the new intelligent power supply cabinet 10 used in the substation, so as to respond to the fire situation detected in the new intelligent power supply cabinet 10 used in the substation, and activate the fire extinguisher unit and / or issue an alarm through the alarm unit.

[0056] It is worth mentioning that the fire extinguisher unit uses perfluorohexanone fire extinguishing agent, which can effectively reduce the temperature and suppress the fire, especially can quickly extinguish the fire of the lithium iron phosphate battery pack 14.

[0057] In particular, in order to ensure the safety of electricity use, the fire protection module further includes a control switch, wherein the control switch is electrically connected to the sensor unit and the input unit 11, and cuts off the power input of the input unit 11 in response to an abnormal situation detected by the sensor unit, thereby preventing the risk of leakage and facilitating the control of fire protection problems.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0059] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are provided for illustrative purposes only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A new type of intelligent power panel cabinet used in substations, characterized by: include: an input unit; a lithium iron phosphate battery pack, wherein the lithium iron phosphate battery pack is electrically connected to the input unit so as to be charged and stored when the input unit is normally powered; a control system module, wherein the control system module is electrically connected to the input unit and the lithium iron phosphate battery pack, so as to be powered by the input unit when the input unit is normally powered, and to be powered by the lithium iron phosphate battery pack when the input unit is not normally powered; and A fire protection module, wherein the fire protection module includes a fire protection backup battery and a fire protection unit, wherein the fire protection backup battery is electrically connected to the input unit so as to be charged and stored with energy when the input unit is normally powered, wherein the fire protection unit is switchably electrically connected to the input unit and the fire protection backup battery so as to be powered by the input unit when the input unit is normally powered, and to be powered by the fire protection backup battery when the input unit is abnormally powered.

2. The new intelligent power supply cabinet for use in a substation according to claim 1, wherein the new intelligent power supply cabinet for use in a substation includes a switching switch, wherein the switching switch has a power supply input end, an emergency input end, and an output end, wherein the power supply input end is electrically connected to the input unit, the emergency input end is electrically connected to the fire backup battery, and the output end is electrically connected to the fire unit, wherein the output end of the switching switch is configured to respond to the power supply status of the input unit and to be connected to the power supply input end when the input unit is normally powered, and to be connected to the emergency input end when the input unit is abnormally powered, so that the fire unit can respond to the power supply status of the input unit and to be connected to the input unit when the input unit is normally powered, and to be connected to the lithium iron phosphate battery pack when the input unit is abnormally powered.

3. The new intelligent power panel cabinet for use in a substation according to claim 2, wherein the new intelligent power panel cabinet for use in a substation comprises a cabinet body, wherein the lithium iron phosphate battery pack, the fire protection module and the control system module are layered and accommodated in the cabinet body.

4. The novel intelligent power panel cabinet for use in a substation according to claim 3, wherein a fireproof partition is provided between the lithium iron phosphate battery pack, the fire protection module and the control system module.

5. The new intelligent power panel cabinet for use in a substation according to claim 2, wherein the new intelligent power panel cabinet for use in a substation comprises a cabinet body, wherein the lithium iron phosphate battery pack comprises a plurality of lithium iron phosphate batteries, and the plurality of lithium iron phosphate batteries are stacked in the cabinet body.

6. The new intelligent power panel cabinet used in a substation according to claim 5, wherein the lithium iron phosphate battery pack and the fire protection module are arranged in the cabinet body.

7. The novel intelligent power panel cabinet for use in a substation according to claim 3, wherein the lithium iron phosphate battery pack accounts for less than or equal to 40% of the volume of the cabinet, and the lithium iron phosphate battery pack is accommodated in a lower position of the cabinet.

8. According to the new intelligent power supply cabinet used in the substation as described in claim 2, the fire protection unit includes a sensor unit, a fire extinguisher unit and an alarm unit, wherein the sensor unit is electrically connected to the fire extinguisher unit and the alarm unit, and is used to monitor the new intelligent power supply cabinet used in the substation.

9. The novel intelligent power panel cabinet used in a substation according to claim 8, wherein the fire extinguisher unit uses perfluorohexanone fire extinguishing agent.

10. The new intelligent power panel cabinet used in a substation according to claim 8, wherein the fire protection unit further comprises a control switch, wherein the control switch is electrically connected to the sensor unit and the input unit, and cuts off the power input to the input unit in response to an abnormality detected by the sensor unit.

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