CN215528694U - Communication backup power supply device - Google Patents

Communication backup power supply device Download PDF

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Publication number
CN215528694U
CN215528694U CN202122079785.4U CN202122079785U CN215528694U CN 215528694 U CN215528694 U CN 215528694U CN 202122079785 U CN202122079785 U CN 202122079785U CN 215528694 U CN215528694 U CN 215528694U
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China
Prior art keywords
battery
unit
module
communication
data
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Active
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CN202122079785.4U
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Chinese (zh)
Inventor
阮文杰
何俐鹏
王敏
徐英君
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Hangzhou Vmhstar Technology Co ltd
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Hangzhou Vmhstar Technology Co ltd
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Priority to CN202122079785.4U priority Critical patent/CN215528694U/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/248—UPS systems or standby or emergency generators

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The utility model relates to the field of battery equipment, in particular to a communication backup power supply device which comprises a box body, a plurality of battery modules, a BMS module and an SNMP module, wherein the BMS module is in communication connection with each battery module and is used for acquiring state data of the battery modules and configuring and monitoring working data of the battery modules; the utility model can detect the battery data in real time, is convenient for intensively and uniformly dispatching the working data of the battery modules, effectively masters the health degree of the battery module electric core in the whole area, can feed back the fault information in time, can greatly reduce the investment of inspection personnel, and improves the convenience of maintenance and replacement by the design of the assembled box body.

Description

Communication backup power supply device
Technical Field
The utility model relates to the technical field of battery equipment, in particular to a communication backup power supply device.
Background
Because the communication basic station is mostly needed to be established under the outdoor condition at present, the environment is comparatively abominable, experience heavy wind and heavy rain often, air humidity is big, under the sun insolate in summer, the temperature is higher in the cabinet, form the environment of high temperature and high humidity, make the air change and puncture, lead to the fact the influence also easily to the electronic component and persist for a long time the heat that produces when electric component corrosion oxidation and electric core discharge, influence the electric core life-span, when the temperature is lower winter, also have comparatively serious influence to battery discharge efficiency.
When taking place above problem, the battery module breaks down, and light then can't discharge and lead to the basic station paralysed, then the incident is aroused to the heavy side, and all need establish in the eminence under the present communication base station most of the circumstances, and the distribution position distance is far away between website and the website simultaneously, and it is big to need the coverage area, and it is more to drop into the website, still can have following shortcoming: if people want to master detailed data of the module in time, more personnel are required, and some base stations are remote and difficult to enter and exit; when the module fails, the feedback cannot be carried out in time, and the breakdown of the base station is easily caused for a long time; the data of the communication backup battery cannot be managed in a centralized way and scheduled in a unified way.
In addition, when the battery module is designed and monitored in a multifunctional manner, how to reduce the material cost and the labor cost for manufacturing, simplify the structure of the device, and improve the efficiency of production and assembly is also a content to be considered.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a communication backup power supply device which is simple in structure and installation, can effectively improve the output stability of power supply equipment, and realizes real-time control and monitoring of a battery module.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a communication backup power supply apparatus comprising:
the top of the box body is provided with an opening, a cover plate is detachably arranged on the box body, a circuit input/output port and a master control switch penetrate through the cover plate, and a hollow mounting boss is arranged on the inner bottom surface of the box body;
the bottom of each battery module is arranged on the hollow mounting boss, and the top of each battery module is abutted against the fixing clamping strip arranged on the inner side surface of the box body;
the BMS module is detachably arranged on the lower surface of the cover plate, is in communication connection with each battery module, and is used for acquiring the state data of the battery modules and configuring and monitoring the working data of the battery modules;
and the SNMP module is detachably arranged on the cover plate in a penetrating way, is configured to be used for processing and converting the environmental data information and the battery parameter information collected by the BMS module, and uploads the environmental data information and the battery parameter information to the background server according to a TCP/IP protocol.
Preferably, the BMS module includes a plurality of data acquisition interface units, a UART unit, an MCU unit, a charge and discharge driving unit, a charge and discharge control unit, and a power transformation unit;
the data acquisition interface unit comprises an environment data interface and a battery parameter interface, and the environment data interface and the battery parameter interface are respectively configured to be used for accessing temperature and humidity data and voltage and current parameter data of the battery module and sending the temperature and humidity data and the voltage and current parameter data to the MCU unit for processing or the UART unit for transmission;
the UART unit is configured to perform conversion between serial communication and parallel communication to transmit environment data information and battery parameter information to the SNMP module;
the MCU unit is configured to process temperature and humidity data and voltage and current parameter data of the battery module, control the charging and discharging drive unit, the charging and discharging control unit and the power transformation unit to work in a matching mode, and configure and monitor working data of the battery module;
the charging and discharging driving unit and the charging and discharging control unit are arranged in a matching manner and are used for executing charging or discharging actions on the battery module according to the control instruction of the MCU unit;
the power transformation unit is configured to perform a voltage conversion operation to provide a power supply of a target voltage magnitude.
Preferably, the charge and discharge control unit includes a discharge MOS transistor switch circuit and a charge MOS transistor switch circuit, and the charge and discharge driving unit includes a discharge MOS transistor driving circuit and a charge MOS transistor driving circuit.
Preferably, an L-shaped mounting fixing plate is detachably mounted on the outer side surface of the top of one opposite side wall of the box body;
four edges of the cover plate vertically extend downwards to form an outer sleeve wall, and the cover plate is covered on the top of the box body and detachably connected with the inner side surface of the L-shaped mounting fixing plate.
Preferably, the upper surface of the cover plate is further provided with a handle, and the L-shaped mounting fixing plate is provided with a plurality of mounting notches.
Preferably, the upper surface of the cover plate is further embedded with a plug control panel, the lower surface of the plug control panel is communicated with the BMS module, and the plug control panel is provided with a signal indicator lamp, a communication interface and an increase and decrease control switch.
Preferably, the plug-in control panel is provided with annular heat dissipation holes, the signal indicator lamp comprises one or more of an alarm indicator lamp, a reset indicator lamp and a work indicator lamp, the communication interface comprises one or more of RS232 and RS485, and the increase and decrease control switch is configured to manually control the number of the battery modules connected to the input/output port.
Preferably, the lower surface of the cover plate is also detachably connected with a bus bar.
Preferably, the BMS module, the SNMP module and the bus bar are detachably connected to an insulation post provided at a lower surface of the cover plate using a screw.
Compared with the prior art, the utility model has the following beneficial effects:
the battery module, the control module and the communication module are integrated, the device structure is simplified, the production and assembly efficiency is improved, the compatibility of the device is effectively improved, the application range and the scene of the device are expanded, environmental information and battery information collected by the BMS are transmitted to the SNMP module through the UART, the SNMP module is converted into a TCP/IP protocol and is uploaded to the background server, remote real-time control and monitoring are realized, when a plurality of devices are connected in parallel in a base station, a switch is additionally introduced to uniformly collect information of the devices, the information is transmitted to the background and then is uploaded to the cloud end through the background, and the information is uniformly processed through the server.
Other salient advantages of the utility model are further illustrated and will be apparent in the examples section that follows.
Drawings
Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic perspective view of a communication backup power supply device according to the present invention;
fig. 2 is a schematic internal perspective view of a communication backup power supply device according to the present invention;
fig. 3 is a top view of a communication backup power supply apparatus of the present invention;
fig. 4 is a bottom perspective view of a cover plate in a communication backup power supply device according to the present invention;
fig. 5 is a schematic circuit diagram of a communication backup power device according to the present invention.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings and specific embodiments, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and their meaning in the context of this patent may be understood by those skilled in the art as appropriate.
Further, certain names are used throughout the specification and claims to refer to particular components. It will be understood that one of ordinary skill in the art may refer to the same component by different names. The present specification and claims do not intend to distinguish between components that differ in name but not function. As used in the specification and claims of this application, the terms "comprises" and "comprising" are intended to be open-ended terms that should be interpreted as "including, but not limited to," or "including, but not limited to. The embodiments described in the detailed description are preferred embodiments of the present invention and are not intended to limit the scope of the present invention.
Moreover, those skilled in the art will appreciate that certain aspects of the present invention may be implemented as a system, method or computer program product. Accordingly, certain aspects of the present invention may be embodied in a combination of hardware and software, which may be referred to herein collectively as a "circuit," module "or" system.
Example 1
Referring to fig. 1 to 5, the present embodiment provides a communication backup power device, including:
the communication backup power supply device comprises a box body 1, wherein the top of the box body 1 is provided with an opening and is detachably provided with a cover plate 2, a common box body 1 is rectangular, an L-shaped mounting fixing plate 11 is detachably mounted on the outer side surface of the top of one opposite side wall of the specific box body 1, the L-shaped mounting fixing plate 11 is equivalent to a pair of skirt borders arranged on the upper portion of the box body 1 and used for fixedly mounting a communication backup power supply device, in order to further facilitate carrying and mounting, the upper surface of the cover plate 2 in the embodiment is further provided with two handles 21, the two handles 21 are generally symmetrically arranged, the L-shaped mounting fixing plate 11 is provided with a plurality of mounting notches 111, and the mounting notches 111 in the embodiment are respectively arranged in the transverse direction and the longitudinal direction, so that the convenience in a scene needing mounting is effectively improved;
in this embodiment, the four edges of the cover plate 2 extend vertically downward to form the outer wall 22, the cover plate 2 covers the top of the box body, the cover-type design improves the waterproof performance of the whole device, and the cover plate 2 is detachably connected with the inner side surface of the L-shaped mounting fixing plate 11. The cover plate 2 is provided with a circuit input/output port 23 and a master control switch 25 in a penetrating way, and the penetrating way can be a method including a sealing ring in consideration of the requirement of sealing performance, and the personnel in the field can select the method according to the requirement and do not need to describe any further;
the inner bottom surface of the box body 1 in the embodiment is provided with a hollow mounting boss 12;
the bottom of each of the plurality of battery modules 3 is disposed on the hollow mounting boss 12, and the top of each of the plurality of battery modules 3 abuts against the fixing clamping strip 13 disposed on the inner side surface of the box body 1, the bottom of each of the plurality of battery modules 3 in this embodiment may be directly disposed on the hollow mounting boss 12, and may be fixed by means of groove clamping or nut connection, and the like, which may be selected by those skilled in the art as needed and will not be described in detail;
the BMS module 4, BMS is the first letter combination of BATTERY MANAGEMENT SYSTEM, called BATTERY management system. Colloquially referred to as a battery caregiver or battery steward; the battery management system is mainly used for intelligently managing and maintaining each battery unit, preventing the battery from being overcharged and overdischarged, prolonging the service life of the battery and monitoring the state of the battery. The BMS module 4 in the embodiment is detachably arranged on the lower surface of the cover plate 2, is in communication connection with each battery module 3, and is used for collecting the state data of the battery modules 3 and configuring and monitoring the working data of the battery modules 3;
in this embodiment, the BMS module 4 includes a plurality of data collecting interface units 41, a UART unit 42, an MCU unit 43, a charging and discharging driving unit 44, a charging and discharging control unit 45, and a power transformation unit 46;
the UART unit 42, which is a Universal Asynchronous Receiver/Transmitter (UART), is an Asynchronous Receiver/Transmitter (UART), and is a specific object represented as an independent modular chip;
the UART unit 42 is configured to perform conversion between serial communication and parallel communication in the present embodiment to transmit the environmental data information and the battery parameter information to the SNMP module 5;
the MCU Unit 43, i.e., a micro controller Unit (Microcontroller Unit), also called a Single Chip Microcomputer (CPU) or a Single Chip Microcomputer, properly reduces the frequency and specification of a Central Processing Unit (CPU), and integrates peripheral interfaces such as a memory (memory), a counter (Timer), a USB, an a/D converter, a UART, a PLC, a DMA, and the like, and even an LCD driving circuit on a Single Chip to form a Chip-level computer, which performs different combination control for different applications;
the MCU unit 43 in this embodiment is configured to process temperature and humidity data and voltage and current parameter data of the battery module 3, control the charging and discharging driving unit 44, the charging and discharging control unit 45, and the power transformation unit 46 to work in a matching manner, and configure and monitor working data of the battery module 3;
the data acquisition interface unit 41 in this embodiment includes an environment data interface 411 and a battery parameter interface 412, where the environment data interface 411 and the battery parameter interface 412 are respectively configured to be used for accessing temperature, humidity data and voltage and current parameter data of the battery module 3 and sending the data to the MCU unit 43 for processing or the UART unit 42 for transmission;
the charging and discharging driving unit 44 and the charging and discharging control unit 45 are arranged in a matching manner and used for executing charging or discharging actions on the battery module 3 according to the control instruction of the MCU unit 43;
the power transformation unit 46 is configured to perform a voltage conversion operation to provide a power supply of a target voltage magnitude.
The charge and discharge control unit 45 includes a discharge MOS transistor switch circuit 451 and a charge MOS transistor switch circuit 452, and the charge and discharge drive unit 44 includes a discharge MOS transistor drive circuit 441 and a charge MOS transistor drive circuit 442.
The SNMP module 5, namely a Simple Network Management Protocol, is detachably arranged on the cover plate 2 in a penetrating mode, is configured to be used for processing and converting environmental data information and battery parameter information acquired by the BMS module 4 and uploading the environmental data information and the battery parameter information to a background server according to a TCP/IP Protocol, and if a plurality of devices are connected in parallel in a base station, the information is uniformly collected and then transmitted to the background by additionally introducing a switch, and then the information is uniformly processed by the server by uploading the information to a cloud end through the background;
in this embodiment, the electrical connection or communication connection between the modules may be a plug-in terminal, which is more convenient for use and installation, and as for the specific line connection that is not expressed between the modules, a person skilled in the art may select a mature product in the existing market according to the specific functional requirements of each module, and install the module according to common general knowledge and specific specifications, which is not described in detail herein.
In this embodiment, the upper surface of the cover plate 2 is further embedded with a plug control panel 24, the lower surface of the plug control panel 24 is communicated with the BMS module 4, and the plug control panel 24 is provided with a signal indicator lamp 241, a communication interface 242 and an increase/decrease control switch 243.
The plug-in control panel 24 in this embodiment is provided with an annular heat dissipation hole 244, a heat dissipation fan is further installed below the annular heat dissipation hole, the signal indicator lamp 241 comprises an alarm indicator lamp, a reset indicator lamp and a working indicator lamp, the communication interface comprises RS232 and RS485, the interfaces are used for being connected with external communication or used as reserved interfaces for standby, and the increase and decrease control switch 243 is configured to manually control the number of the battery modules connected to the input/output ports.
The lower surface of the cover plate 2 in the embodiment can be also detachably connected with a bus bar 25;
BMS module 4, SNMP module 5 and busbar 25 all adopt the screw to dismantle with the insulating column 26 that sets up at apron 2 lower surface and be connected in this embodiment, can improve its heat dispersion like this on the one hand, and on the other hand has reduced the appearance of disturbing static or electric leakage condition, has effectively improved the stability of device.
In this embodiment, the side wall of the box body 1 is further provided with a ventilation opening 14.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (9)

1. A communication backup power supply apparatus, comprising:
the top of the box body is provided with an opening, a cover plate is detachably arranged on the box body, a circuit input/output port and a master control switch penetrate through the cover plate, and a hollow mounting boss is arranged on the inner bottom surface of the box body;
the bottom of each battery module is arranged on the hollow mounting boss, and the top of each battery module is abutted against the fixing clamping strip arranged on the inner side surface of the box body;
the BMS module is detachably arranged on the lower surface of the cover plate, is in communication connection with each battery module, and is used for acquiring the state data of the battery modules and configuring and monitoring the working data of the battery modules;
and the SNMP module is detachably arranged on the cover plate in a penetrating way, is configured to be used for processing and converting the environmental data information and the battery parameter information collected by the BMS module, and uploads the environmental data information and the battery parameter information to the background server according to a TCP/IP protocol.
2. The communication backup power supply device according to claim 1, wherein the BMS module comprises a plurality of data acquisition interface units, a UART unit, an MCU unit, a charge and discharge driving unit, a charge and discharge control unit, and a power transformation unit;
the data acquisition interface unit comprises an environment data interface and a battery parameter interface, and the environment data interface and the battery parameter interface are respectively configured to be used for accessing temperature and humidity data and voltage and current parameter data of the battery module and sending the temperature and humidity data and the voltage and current parameter data to the MCU unit for processing or the UART unit for transmission;
the UART unit is configured to perform conversion between serial communication and parallel communication to transmit environment data information and battery parameter information to the SNMP module;
the MCU unit is configured to process temperature and humidity data and voltage and current parameter data of the battery module, control the charging and discharging drive unit, the charging and discharging control unit and the power transformation unit to work in a matching mode, and configure and monitor working data of the battery module;
the charging and discharging driving unit and the charging and discharging control unit are arranged in a matching manner and are used for executing charging or discharging actions on the battery module according to the control instruction of the MCU unit;
the power transformation unit is configured to perform a voltage conversion operation to provide a power supply of a target voltage magnitude.
3. The communication backup power supply device according to claim 2, wherein the charge and discharge control unit comprises a discharge MOS transistor switch circuit and a charge MOS transistor switch circuit, and the charge and discharge driving unit comprises a discharge MOS transistor driving circuit and a charge MOS transistor driving circuit.
4. A communication back-up power supply device according to claim 1, wherein an L-shaped mounting fixing plate is detachably mounted on the outer side surface of the top of one opposite side wall of the box body;
four edges of the cover plate vertically extend downwards to form an outer sleeve wall, and the cover plate is covered on the top of the box body and detachably connected with the inner side surface of the L-shaped mounting fixing plate.
5. A communication back-up power supply device according to claim 4, characterized in that the cover plate is further provided with a handle on the upper surface, and the L-shaped mounting fixing plate is provided with a plurality of mounting notches.
6. A communication backup power supply device according to claim 1, characterized in that a plug-in control panel is embedded on the upper surface of the cover plate, the lower surface of the plug-in control panel is communicated with a BMS module, and a signal indicator, a communication interface and an increase and decrease control switch are arranged on the plug-in control panel.
7. A communication backup power supply device according to claim 6, characterized in that the plug-in control panel is provided with an annular heat dissipation hole, the signal indicator lamp comprises one or more of an alarm indicator lamp, a reset indicator lamp and a working indicator lamp, the communication interface comprises one or more of RS232 and RS485, and the increase and decrease control switch is configured to manually control the number of the battery modules connected to the input/output port.
8. A backup power supply unit for communication according to claim 7 wherein said cover plate has a bus bar removably attached to a lower surface thereof.
9. A communication backup power supply apparatus according to claim 8, wherein said BMS module, SNMP module and bus bar are detachably connected with an insulating post provided on a lower surface of the cover plate by using a screw.
CN202122079785.4U 2021-08-31 2021-08-31 Communication backup power supply device Active CN215528694U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122079785.4U CN215528694U (en) 2021-08-31 2021-08-31 Communication backup power supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122079785.4U CN215528694U (en) 2021-08-31 2021-08-31 Communication backup power supply device

Publications (1)

Publication Number Publication Date
CN215528694U true CN215528694U (en) 2022-01-14

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ID=79794755

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122079785.4U Active CN215528694U (en) 2021-08-31 2021-08-31 Communication backup power supply device

Country Status (1)

Country Link
CN (1) CN215528694U (en)

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