CN220569829U

CN220569829U - Backup battery

Info

Publication number: CN220569829U
Application number: CN202322045924.0U
Authority: CN
Inventors: 王伟; 李中学
Original assignee: Gotion High Tech Co Ltd
Current assignee: Gotion High Tech Co Ltd
Priority date: 2023-07-28
Filing date: 2023-07-28
Publication date: 2024-03-08
Anticipated expiration: 2033-07-28

Abstract

The utility model provides a backup battery. The backup battery includes: the box body comprises a bottom plate and a circumferential side plate connected with the bottom plate, and the bottom plate and the circumferential side plate define a cavity; a terminal block provided on the circumferential side plate; the battery module is positioned in the cavity and fixedly connected with the bottom plate and/or the circumferential side plate; and the fire extinguishing device is positioned in the cavity and is connected with the bottom plate and/or the circumferential side plate. According to the technical scheme, the fire can be extinguished in time in the box body when a fire disaster occurs in the box body, so that the fire extinguishing box has higher safety performance.

Description

Backup battery

Technical Field

The utility model relates to the technical field of batteries, in particular to a backup battery.

Background

Along with the rapid development of the market in the energy storage industry, the lithium battery is also widely applied in the communication industry, and the integrated base station, the marginal station, the repeater, the macro base station, the solar base station and the like in the communication industry are all required to be provided with corresponding energy storage systems for coping with various situations, wherein the backup power supply is used for coping with the power deficiency.

At present, the existing backup battery comprises a box body and a battery module arranged in the box body, wherein a terminal strip is arranged on the box body, and the battery module is electrically connected with external equipment through the terminal strip so as to realize charging and discharging. In the process of charging and discharging the backup battery, the battery module can generate a large amount of heat, when the temperature inside the box body is too high, potential safety hazards such as fire disaster are easy to generate, and a user can not extinguish the fire timely outside the box body due to the fact that the fire disaster condition inside the box body is difficult to find, so that the fire disaster is spread, even the explosion and other serious consequences are caused, and the safety performance of the backup battery is lower.

Disclosure of Invention

The utility model mainly aims to provide a backup battery to solve the problems that fire is not extinguished timely due to the fact that a user is difficult to find a fire disaster in a box body in the prior art, and the safety performance of the backup battery is low.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a backup battery comprising: the box body comprises a bottom plate and a circumferential side plate connected with the bottom plate, and the bottom plate and the circumferential side plate define a cavity; a terminal block provided on the circumferential side plate; the battery module is positioned in the cavity and fixedly connected with the bottom plate and/or the circumferential side plate; and the fire extinguishing device is positioned in the cavity and is connected with the bottom plate and/or the circumferential side plate.

Further, the fire extinguishing apparatus includes: fire extinguishers; the first temperature sensor is connected with the fire extinguisher and is used for detecting the temperature in the cavity; the first controller is electrically connected with the first temperature sensor and the fire extinguisher respectively and is used for controlling the opening and closing of the fire extinguisher according to the temperature detected by the first temperature sensor.

Further, the battery module is configured to be electrically connected with the terminal strip, the circumferential side plate comprises a first side plate, a second side plate, a third side plate and a fourth side plate which are sequentially connected end to end, wherein the terminal strip is arranged on the first side plate, and the fire extinguishing device is positioned between the battery module and the first side plate; and/or the backup battery further comprises a first insulating member disposed between the battery module and the circumferential side plate.

Further, the backup battery further comprises an integrated cover plate located in the cavity, and the integrated cover plate is located on one side, away from the bottom plate, of the battery module and fixedly connected with the battery module.

Further, the battery module comprises a plurality of electric cores, the backup battery further comprises a bus bar fixedly connected with the integrated cover plate, and the bus bar is positioned between the integrated cover plate and the electric cores and is electrically connected with the electric cores respectively.

Further, the backup battery further includes: the collecting assembly is connected with the integrated cover plate and used for collecting the voltage and the temperature of the battery module; and the second controller is electrically connected with the acquisition assembly and is used for controlling the on-off of the current flowing through the battery module according to the voltage signal and the temperature signal acquired by the acquisition assembly.

Further, the collection assembly includes: the second temperature sensor is positioned between the integrated cover plate and the battery module and connected with the integrated cover plate, and is used for detecting the temperature of the battery module; one end of the voltage acquisition wire harness is electrically connected with the second controller, and the other end of the voltage acquisition wire harness is electrically connected with the battery module so as to transmit the voltage of the battery module to the second controller; and one end of the temperature acquisition wire harness is electrically connected with the second controller, and the other end of the temperature acquisition wire harness is electrically connected with the second temperature sensor so as to transmit the temperature detected by the second temperature sensor to the second controller.

Further, the backup battery further comprises a control panel located in the cavity, the control panel is located between the fire extinguishing device and the circumferential side plate and connected with the circumferential side plate, and the second controller is fixed on the control panel.

Further, the control panel is electrically connected with the terminal strip and the battery module respectively, so that the battery module is electrically connected with the terminal strip through the control panel.

Further, the circumference curb plate includes first curb plate, second curb plate, third curb plate and the fourth curb plate that head and the tail connected gradually, and wherein, the terminal row sets up on first curb plate, and first curb plate and second curb plate and first curb plate and fourth curb plate detachably are connected respectively, and one side that deviates from the cavity of first curb plate is connected with the handle, handle and terminal row interval arrangement.

By applying the technical scheme of the utility model, the box body can accommodate and fix the electric elements (such as the battery module) of the backup battery, so that the backup battery has higher integration level, is convenient to install and transport, and can be used for charging the external equipment positioned in the required area by installing the box body in the required area. Fire extinguishing device and bottom plate or circumference curb plate fixed connection, like this, when the conflagration is taken place because of the high temperature in the box, utilize fire extinguishing device can in time put out a fire to battery module and other electrical components in the cavity, in contrast by the outside fire extinguishing of user from the box in prior art, the technical scheme of this application can in time put out a fire to the cavity inside when the conflagration takes place, can in time control the fire spreading and the fire extinguishing effect is better, has higher security performance.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic structural view of an embodiment of a backup battery according to the present utility model;

FIG. 2 shows an exploded view of the backup battery of FIG. 1;

fig. 3 shows a schematic diagram of the circuit connection of the backup battery of the present utility model.

Wherein the above figures include the following reference numerals:

1. a case; 101. a bottom plate; 102. a first side plate; 105. a terminal block; 11. a cavity; 2. a battery module; 3. an integrated cover plate; 4. a control panel; 5. a fire extinguishing device; 6. a handle; 71. a voltage acquisition harness; 8. and (5) an overcurrent soft copper bar.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 and 2, an embodiment of the present utility model provides a backup battery. The backup battery includes: the box body 1 comprises a bottom plate 101 and a circumferential side plate connected with the bottom plate 101, wherein the bottom plate 101 and the circumferential side plate define a cavity 11; a terminal row 105 provided on the circumferential side plate, the terminal row 105 having a positive electrode interface and a negative electrode interface capable of being electrically connected to an external device; a battery module 2 located in the cavity 11 and fixedly connected with the bottom plate 101 and/or the circumferential side plate, the battery module 2 being configured to be electrically connectable with the terminal block 105; and the fire extinguishing device 5 is positioned in the cavity 11 and connected with the bottom plate 101 and/or the circumferential side plate, and the fire extinguishing device 5 is used for performing fire extinguishing actions.

In the above technical scheme, the box 1 can hold and fix the electrical element (such as the battery module) of the backup battery, so that the integration level of the backup battery is higher, the installation and the transportation are convenient, and the external equipment in the area can be charged by installing the box 1 to the required area. Fire extinguishing device 5 and bottom plate 101 fixed connection, like this, when the conflagration is taken place because of the high temperature in box 1, fire extinguishing device 5 can put out a fire to battery module 2 and other electrical components in cavity 11, compares in prior art by the user from the outside fire extinguishing of box 1, and the technical scheme of this application can in time put out a fire to cavity 11 inside when the conflagration takes place, can in time control the fire and spread and the fire extinguishing effect is better, has higher security performance.

In one embodiment of the present utility model, the single package (i.e., the battery module 2) of the present application adopts a low-voltage high-current system design with a battery capacity of 48v 100ah, and the backup battery may include four battery modules 2, so as to satisfy the communication interconnection function of 4 battery modules.

In one embodiment of the present utility model, the backup battery includes a plurality of battery modules, and the battery capacity of the entire package (i.e., the entire backup battery) is 102AH to satisfy the basic power requirements of the base station.

As shown in fig. 2, in the embodiment of the present utility model, the fire extinguishing apparatus 5 includes: fire extinguishers; a first temperature sensor connected to the fire extinguisher, the first temperature sensor being for detecting the temperature in the cavity 11; the first controller is electrically connected with the first temperature sensor and the fire extinguisher respectively and is used for controlling the opening and closing of the fire extinguisher according to the temperature detected by the first temperature sensor.

In the above technical solution, when the temperature in the cavity 11 is lower than or equal to the preset temperature (for example, 60 ℃), the first controller controls the fire extinguisher to be closed; when the temperature in the cavity 11 is higher than a preset temperature (such as 60 ℃), the first controller controls the fire extinguisher to be opened and conduct fire extinguishing actions, so that the fire can be controlled in time when the battery module 2 just begins to generate fire or is about to generate fire, and dangers caused by fire spreading are avoided.

Through above-mentioned setting, extinguishing device 5 can in time put out a fire automatically when battery module 2 takes place the condition of a fire, need not manual monitoring like this, and put out a fire in cavity 11, and the fire extinguishing effect is better, has higher security performance.

In one embodiment of the present utility model, the fire extinguisher uses 200g of perfluoro-hexanone as the fire extinguishing material, and the maximum protection space is 0.25m ³ The fire-fighting safety protection of the cavity 11 can be effectively performed.

As shown in fig. 2, in the embodiment of the present utility model, the circumferential side plate includes a first side plate 102, a second side plate, a third side plate, and a fourth side plate connected end to end in this order, wherein the terminal row 105 is disposed on the first side plate 102, and the fire extinguishing device 5 is located between the battery module 2 and the first side plate 102.

In the above technical solution, the first side plate 102 is provided with a jack, the terminal strip 105 is inserted in the jack, one end of the terminal strip 105 is electrically connected with the battery module 2, and the other end of the terminal strip 105 is electrically connected with an external device.

Through the arrangement, the battery module 2 is electrically connected with the terminal row 105 positioned on the first side plate 102, and the fire extinguisher is positioned between the battery module 2 and the first side plate 102, so that when a fire occurs, the fire extinguisher can firstly extinguish the fire at the position where the battery module 2 is electrically connected with the terminal row 105, thereby avoiding damage to external equipment caused by spreading of the fire to the external equipment, and further improving the safety performance of the backup battery.

In the embodiment of the utility model, the backup battery further includes a first insulating member provided between the battery module 2 and the circumferential side plate.

In the above technical solution, the backup battery further includes a first insulating member disposed between the battery module 2 and the bottom plate 101, that is, the connection between the battery module 2 and the case 1 is provided with the first insulating member, so that the battery module 2 is connected with the case 1 in an insulating manner.

As shown in fig. 2, in the embodiment of the present utility model, the backup battery further includes an integrated cover plate 3 located in the cavity 11, and the integrated cover plate 3 is located at a side of the battery module 2 facing away from the bottom plate 101 and fixedly connected with the battery module 2.

In the above technical scheme, the battery module 2 comprises a plurality of electric cells, the backup battery further comprises a busbar fixedly connected with the integrated cover plate 3, and the busbar is positioned between the integrated cover plate 3 and the plurality of electric cells and is respectively electrically connected with the plurality of electric cells, so that the plurality of electric cells can be connected in series and/or in parallel through the integrated cover plate 3. Meanwhile, as shown in fig. 2, the integrated cover plate 3 is located above the battery module 2, the first side plate 102 and the fire extinguishing device 5 are located on the same side of the battery module 2, and each structure in the cavity 11 can be reasonably distributed, so that the maximized space utilization is realized on the premise of ensuring various functions of electrical connection, fire extinguishing and the like.

In an embodiment of the utility model, the backup battery further comprises a second insulating member arranged between two adjacent cells, thereby ensuring insulating contact between the individual cells.

As shown in fig. 2, in an embodiment of the utility model, the backup battery further comprises a control panel 4 located within the cavity 11, the control panel 4 being located between the fire extinguishing device 5 and the circumferential side plate and being connected to the circumferential side plate.

In the above-described embodiments, the control panel 4 is fixed to the first side plate 102. The backup battery also comprises an overcurrent soft copper bar 8, and the overcurrent soft copper bar 8 is an overcurrent element of direct current system current, so that the current overcurrent required by the base station can be effectively met. One end of the overcurrent soft copper bar 8 is electrically connected with the bus bar, the other end of the overcurrent soft copper bar 8 is electrically connected with the terminal bar 105 through the control panel 4, that is, a plurality of electric cores in the battery module 2 are connected in series and/or in parallel through the bus bar on the integrated cover plate 3, and the bus bar is electrically connected with the control panel 4 through the overcurrent soft copper bar 8 and is electrically connected with the terminal bar 105 through the control panel 4 so as to be connected to external equipment.

In an embodiment of the utility model, the backup battery further comprises: the acquisition component is connected with the integrated cover plate 3 and is used for acquiring the voltage and the temperature of the battery module 2; and the second controller is electrically connected with the acquisition assembly and is used for controlling the on-off of the current flowing through the battery module 2 according to the voltage signal and the temperature signal acquired by the acquisition assembly.

In the above-mentioned technical scheme, because collection subassembly is connected with integrated apron 3, integrated apron 3 can be with collection, electric core series connection and parallelly connected etc. function integration in an organic wholely, compare in prior art busbar, collection subassembly are independent the scheme of being connected with battery module 2 each other, the integrated level of the technical scheme of this application is higher, only need when equipment backup battery with integrated apron 3 lid establish on battery module 2 and with battery module 2 fixed connection can, spare part is less, the installation and the maintenance of being convenient for. The second controller is fixed on the control panel 4, and the control panel 4 is a BMS control board. As shown in fig. 3, fig. 3 shows a schematic circuit connection diagram of the backup battery of the present application, in which a BMS control board is electrically connected with the battery module 2.

Through the arrangement, the second controller can transmit the collected signals to the monitoring terminal so that a user can monitor the operation condition of the backup battery in real time, and the second controller can control the action of the indicator lamp and the on-off of MOS (metal-oxide semiconductor field effect transistor) according to the collected signals, specifically, when the collected voltage exceeds a preset voltage (such as 3.65V) or the collected temperature exceeds a second preset temperature (such as 60 ℃), that is, as long as at least one of the voltage and the temperature exceeds a preset value, the second controller controls the indicator lamp to turn red so as to prompt the user that the backup battery is abnormal in operation, and the MOS is cut off so as to ensure the safety of the backup battery, and the backup battery is protected. In addition, through integrating the current sensor in the BMS control panel, when the battery is charged and discharged, the current can pass through the BMS control panel, and the current sensor can collect the current, so that the current is detected; an insulation monitoring chip is arranged inside the BMS control board so as to monitor the insulation condition inside the BMS control board, thereby performing insulation monitoring. The backup battery that sets up like this can be with functions integration such as gathering, management and communication on the BMS control panel to can realize functions such as temperature detect, voltage detection, electric current detection and insulation detection, can also communicate to upper BMS (i.e. monitor terminal), realize the information interaction of whole battery cluster system.

As shown in fig. 2, in an embodiment of the present utility model, the acquisition assembly includes: the second temperature sensor is positioned between the integrated cover plate 3 and the battery module 2 and connected with the integrated cover plate 3, and is used for detecting the temperature of the battery module 2; the voltage acquisition wire harness 71, one end of the voltage acquisition wire harness 71 is electrically connected with the second controller, and the other end of the voltage acquisition wire harness 71 is electrically connected with the battery module 2 so as to transmit the voltage of the battery module 2 to the second controller; and one end of the temperature acquisition wire harness is electrically connected with the second controller, and the other end of the temperature acquisition wire harness is electrically connected with the second temperature sensor so as to transmit the temperature detected by the second temperature sensor to the second controller.

In the above technical scheme, the collection assembly comprises four second temperature sensors which are arranged on the battery module 2 at intervals and uniformly, and each second temperature sensor is connected with the integrated cover plate 3 to detect the temperature of the battery module 2. One end of the voltage collection wire harness 71 is electrically connected with the second controller, and the other end of the voltage collection wire harness 71 is electrically connected with the busbar to collect the voltage value of the battery module 2.

In one embodiment of the utility model, the second temperature sensor is a thermistor.

As shown in fig. 2, in the embodiment of the present utility model, the first side plate 102 is detachably connected to the second side plate, and the first side plate 102 is detachably connected to the fourth side plate, and a handle 6 is connected to a side of the first side plate 102 facing away from the cavity 11, and is spaced apart from the terminal strip 105.

In the above technical scheme, the terminal strip 105, the handle 6 and the control panel 4 are all connected with the first side plate 102, so that reasonable layout of each structure of the backup battery can be realized, the integration level is higher, and the installation and maintenance are convenient. In addition, a terminal strip 105 for connecting with external equipment is integrated on the first side plate 102, so that the external equipment and the back-up battery core are conveniently inserted, and meanwhile, the high-low voltage connector is separated to ensure electrical safety.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: when fire disaster occurs due to overhigh temperature in the box body, the fire extinguishing device can extinguish fire to the battery module and other electrical elements in the cavity, can timely control fire spreading and has better fire extinguishing effect and higher safety performance. The integrated cover plate integrates functions of acquisition, serial connection and parallel connection of the battery cells and the like, and is convenient to install and maintain. The functions of acquisition, management, communication and the like are integrated on the control panel, and when the temperature or the voltage of the battery module is too high, the second controller can control the indicator lamp to change and cut off the MOS in time so as to ensure the safety of the backup battery.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A backup battery, comprising:

the box body (1) comprises a bottom plate (101) and a circumferential side plate connected with the bottom plate (101), wherein the bottom plate (101) and the circumferential side plate define a cavity (11);

a terminal block (105) provided on the circumferential side plate;

the battery module (2) is positioned in the cavity (11) and is fixedly connected with the bottom plate (101) and/or the circumferential side plate;

and the fire extinguishing device (5) is positioned in the cavity (11) and is connected with the bottom plate (101) and/or the circumferential side plate.

2. Backup battery according to claim 1, characterized in that the fire extinguishing device (5) comprises:

fire extinguishers;

a first temperature sensor connected to the fire extinguisher, the first temperature sensor being adapted to detect the temperature inside the cavity (11);

the first controller is respectively and electrically connected with the first temperature sensor and the fire extinguisher, and is used for controlling the opening and closing of the fire extinguisher according to the temperature detected by the first temperature sensor.

3. The backup battery according to claim 1, wherein the battery module (2) is configured to be electrically connectable with the terminal row (105), the circumferential side plate comprising a first side plate (102), a second side plate, a third side plate and a fourth side plate connected end to end in sequence, wherein the terminal row (105) is provided on the first side plate (102), the fire extinguishing device (5) being located between the battery module (2) and the first side plate (102); and/or the number of the groups of groups,

the backup battery further comprises a first insulating member arranged between the battery module (2) and the circumferential side plate.

4. A backup battery according to any of claims 1-3, characterized in that the backup battery further comprises an integrated cover plate (3) located in the cavity (11), the integrated cover plate (3) being located at a side of the battery module (2) facing away from the bottom plate (101) and being fixedly connected with the battery module (2).

5. The backup battery according to claim 4, wherein the battery module (2) comprises a plurality of electric cells, and further comprises a bus bar fixedly connected with the integrated cover plate (3), wherein the bus bar is located between the integrated cover plate (3) and the electric cells and is electrically connected with the electric cells respectively.

6. The backup battery of claim 4, wherein the backup battery further comprises:

the acquisition component is connected with the integrated cover plate (3) and is used for acquiring the voltage and the temperature of the battery module (2);

the second controller is electrically connected with the acquisition assembly and is used for controlling the on-off of the current flowing through the battery module (2) according to the voltage signal and the temperature signal acquired by the acquisition assembly.

7. The backup battery of claim 6, wherein the acquisition assembly comprises:

the second temperature sensor is positioned between the integrated cover plate (3) and the battery module (2) and is connected with the integrated cover plate (3), and the second temperature sensor is used for detecting the temperature of the battery module (2);

the voltage acquisition wire harness (71), one end of the voltage acquisition wire harness (71) is electrically connected with the second controller, and the other end of the voltage acquisition wire harness (71) is electrically connected with the battery module (2) so as to transmit the voltage of the battery module (2) to the second controller;

the temperature acquisition wire harness, the one end of temperature acquisition wire harness with the second controller electricity is connected, the other end of temperature acquisition wire harness with second temperature sensor electricity is connected, in order to with the temperature transmission that second temperature sensor detected to the second controller.

8. A backup battery according to claim 6, characterized in that the backup battery further comprises a control panel (4) located within the cavity (11), the control panel (4) being located between the fire extinguishing device (5) and the circumferential side plate and being connected thereto, the second controller being fixed on the control panel (4).

9. The backup battery according to claim 8, characterized in that the control panel (4) is electrically connected with the terminal block (105) and the battery module (2), respectively, so that the battery module (2) is electrically connected with the terminal block (105) through the control panel (4).

10. The backup battery according to claim 1 or 2, characterized in that the circumferential side plate comprises a first side plate (102), a second side plate, a third side plate and a fourth side plate which are connected end to end in sequence, wherein the terminal row (105) is arranged on the first side plate (102), the first side plate (102) and the second side plate, and the first side plate (102) and the fourth side plate are respectively detachably connected, a handle (6) is connected to one side of the first side plate (102) facing away from the cavity (11), and the handle (6) and the terminal row (105) are arranged at intervals.