CN108169692A - The hot monitoring device of battery and method - Google Patents

Abstract

The present invention relates to the technical field of monitoring, in particular to a battery thermal monitoring device and method. The battery thermal monitoring device includes: a power supply, a controller, an alarm, a plurality of detection devices and a plurality of detection devices, and each detection device is respectively installed on an assembly board Each positioning hole group and each positioning hole close to the positioning hole group. When performing thermal monitoring on the battery module, when the detection device detects that the temperature of the adjacent single battery exceeds a preset value, it generates an electrical signal and sends it to the corresponding detection device, so that the detection device generates a trigger The signal is sent to the controller, and the controller controls the alarm to send an alarm signal when receiving the trigger signal, so as to realize accurate real-time monitoring of the state of each single battery in the battery module, effectively Avoid the failure of the battery module or even explosion due to the failure of the single battery, which will cause casualties and damage to electrical equipment.

Description

Battery thermal monitoring device and method

technical field

The present invention relates to the technical field of monitoring, in particular to a battery thermal monitoring device and method.

Background technique

With the depletion of traditional fossil energy, the development of new energy has been widely concerned. Automobiles are one of the main products of energy consumption. The emergence of new energy vehicles can effectively alleviate the problem of energy depletion, so new energy vehicles are vigorously developed and applied. As the power source of new energy vehicles, batteries are an important part of new energy vehicles. Improving the safety performance of batteries also improves the safety performance of vehicles.

There are multiple battery cells connected in series or parallel in the battery module, and the battery module will charge and discharge multiple battery cells during the working process. After many times of charging and discharging, one or more battery cells in the battery module may fail and generate a lot of heat. The battery module fails or even explodes, causing casualties and damage to electrical equipment.

Contents of the invention

In view of this, the object of the present invention is to provide a battery thermal monitoring device and method, by setting a power supply, a controller, an alarm, a detection device, a plurality of detection devices and a plurality of electronic switches to realize monitoring of each battery module The status of the single battery is accurately monitored in real time, which can effectively avoid the failure of the battery module or even explosion caused by the failure of the single battery, which will cause casualties and damage to electrical equipment.

The present invention is achieved like this:

A battery thermal monitoring device, which is applied to a battery module. The battery module includes a plurality of single batteries and an assembly plate provided with a plurality of positioning holes. The plurality of positioning holes constitute a plurality of positioning hole groups, and each The set of positioning holes includes at least two positioning holes, and each of the single batteries is arranged in each of the positioning holes in one-to-one correspondence. The battery thermal monitoring equipment includes: a power supply, a controller, an alarm, a plurality of detection devices and a plurality of Each detection device corresponds to a detection device, and each detection device is respectively installed in each positioning hole group of the assembly plate and is close to each positioning hole of the positioning hole group, and the input ends of each detection device are respectively connected to The power connection and the output end are respectively electrically connected to the input end of the corresponding detection device, the output ends of each of the detection devices are respectively electrically connected to the controller, and the controller is electrically connected to the alarm.

When the detection device detects that the temperature of the adjacent single battery exceeds a preset value, it generates an electrical signal and sends it to the corresponding detection device, so that the detection device generates a trigger signal and sends it to the controller, so The controller controls the alarm to send an alarm signal when receiving the trigger signal.

Optionally, in the above-mentioned battery thermal monitoring device, the multiple sets of positioning hole groups include multiple sets of first positioning hole groups and multiple sets of second positioning hole groups, each of the first positioning hole groups along the Arranged in the first direction, each of the second positioning hole groups is arranged along the second direction of the assembly plate, the plurality of detection devices include a plurality of first detectors and a plurality of second detectors, and each of the first The detectors are respectively arranged along the first direction of the assembly plate and are respectively close to a plurality of positioning holes of a set of first positioning hole groups, and each of the second detectors is respectively arranged along the second direction of the assembly plate and is respectively close to For the plurality of positioning holes of the second positioning hole group, any adjacent first detector and second detector are isolated from each other.

Optionally, in the battery thermal monitoring device above, each of the first detectors and each of the second detectors are respectively embedded in the assembly board and located on the same side of the assembly board.

Optionally, in the battery thermal monitoring device above, the battery thermal monitoring device further includes a wireless communication module associated with a terminal device, the wireless communication module is electrically connected to the controller, and the controller pre-stores each of the The location information of the detection device is configured to, when the controller receives the trigger signal, send the location information to the terminal device through the wireless communication module.

Optionally, in the above battery thermal monitoring device, the detection device is a voltage detector, the detection device is a thermal fuse, the preset value is the melting point of the thermal fuse, and the trigger signal is a low level signal; the thermal fuse is blown when the temperature of the single battery exceeds the melting point of the thermal fuse, and the voltage detector sends a low level to the controller when the detected voltage value is zero signal, the controller controls the alarm to send out an alarm signal when receiving the low level signal.

Optionally, in the above-mentioned battery thermal monitoring device, the controller is also used to record the information of the blown thermal fuse and the blown time, the alarm includes a short message alarm module, and when the thermal fuse is detected to be blown, the The controller controls the short message alarm module to send fusing information to the terminal device, and the fusing information includes the information of the thermal fuse that has been blown and the fusing time.

Optionally, in the above battery thermal monitoring device, the battery module further includes a charge and discharge switch, the control end of the charge and discharge switch is electrically connected to the controller, and the controller is further configured to signal, control the charge and discharge switch to turn off.

Optionally, in the above battery thermal monitoring device, the detection device is a voltage detection device or a current detection device for detecting the voltage or current of the corresponding thermal fuse.

Optionally, in the above-mentioned battery thermal monitoring device, each of the detection devices includes a plurality of series-connected thermal sensors, and the plurality of series-connected thermal sensors are respectively arranged at each positioning hole of a set of positioning hole groups to detect the set The temperature of the battery at the positioning hole, and when the temperature detected by a sensor exceeds the preset value, generate an electrical signal and send it to the detection device, so that the detection device generates a trigger signal and sends it to the The controller, the controller controls the alarm to send an alarm signal when receiving the trigger signal.

The present invention also provides a battery thermal monitoring method, which is applied to the above-mentioned battery thermal monitoring device, and the method includes:

When the detection device detects that the temperature of the adjacent single battery exceeds a preset value, it generates an electrical signal and sends it to the corresponding detection device;

The detection device generates a trigger signal according to the electrical signal and sends it to the controller;

The controller controls the alarm to send out an alarm signal when receiving the trigger signal.

A battery thermal monitoring device and method provided by the present invention, the device includes: a power supply, a controller, an alarm, a plurality of detection devices and a plurality of detection devices, each detection device is respectively installed in each positioning hole group of the assembly board and is close to the Each locating hole of the locating hole group. When performing thermal monitoring on the battery module, when the detection device detects that the temperature of the adjacent single battery exceeds a preset value, it generates an electrical signal and sends it to the corresponding detection device, so that the detection device generates a trigger The signal is sent to the controller, and the controller controls the alarm to send an alarm signal when receiving the trigger signal, so as to realize accurate real-time monitoring of the state of each single battery in the battery module, effectively Avoid the failure of the battery module or even explosion due to the failure of the single battery, which will cause casualties and damage to electrical equipment.

In order to make the above-mentioned objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some of the embodiments of the present invention, and therefore should not It is regarded as limiting the scope of protection of the present invention, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

FIG. 1 is an application schematic diagram of a battery thermal monitoring device provided by an embodiment of the present invention.

Fig. 2 is a connection block diagram of a battery thermal monitoring device provided by an embodiment of the present invention.

FIG. 3 is a schematic diagram of a battery thermal monitoring device provided by an embodiment of the present invention.

Fig. 4 is another connection block diagram of a battery thermal monitoring device provided by an embodiment of the present invention.

FIG. 5 is a schematic flowchart of a battery thermal monitoring method provided by an embodiment of the present invention.

Icons: 100-battery thermal monitoring equipment; 110-controller; 120-power supply; 130-detection device; 140-alarm; 150-detection device; 160-wireless communication module; 300-battery module; 310-single battery ; 320-assembly board; 330-charge and discharge switch.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "inner", etc. is based on the orientation or positional relationship shown in the drawings, or the conventionally placed position when the product of the invention is used. Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In the prior art, to check the failure of a single battery is to arrange and fix a plurality of single batteries on the assembly board, and each assembly board is provided with a plurality of positioning holes for fixing the battery, and the center of each positioning hole is located at the same In a straight line, install a thermal fuse through the center of all positioning holes to the assembly board, that is, through the thermal fuse, each hole is connected in series, when one (or more) of the single cells are thermally out of control , it will blow the thermal fuse and generate an alarm signal to the terminal equipment.

The inventors found that when the single battery in the existing battery module is detected, and there is a single battery fault, it cannot be located in real time and accurately on a specific faulty battery, which will lead to later detection of the fault. The search and replacement of a single battery is time-consuming and laborious. The entire battery module needs to be disassembled for manual search and marking. The disassembly process may also cause secondary damage to the thermal fuse, which may lead to misjudgment.

Please refer to FIG. 1, the present invention provides a battery thermal monitoring device 100, which is applied to a battery module 300 including an assembly plate 320 provided with a plurality of positioning holes and a plurality of single cells 310, so as to detect each single cell 310 working status.

The plurality of positioning holes constitute a plurality of positioning hole groups, and each group of positioning holes includes at least two positioning holes, and each of the single batteries 310 is disposed in each of the positioning holes in a one-to-one correspondence.

2 and 3, the battery thermal monitoring device 100 includes: a power supply 120, a controller 110, an alarm 140, a plurality of detection devices 130 and a plurality of detection devices 150, each detection device 130 corresponds to a detection device 150 , each of the detection devices 150 is respectively installed in each positioning hole group of the assembly plate 320 and is close to each positioning hole of the positioning hole group, and the input end of each detection device 150 is respectively connected to the power supply 120, and the output end They are respectively electrically connected to the input ends of the corresponding detection devices 150 , and the output ends of each detection device 130 are respectively electrically connected to the controller 110 , and the controller 110 is electrically connected to the alarm 140 .

When the detection device 150 detects that the temperature of the adjacent single battery 310 exceeds a preset value, it generates an electrical signal and sends it to the corresponding detection device 130, so that the detection device 130 generates a trigger signal and sends it to the A controller 110, the controller 110 controls the alarm 140 to send out an alarm signal when receiving the trigger signal.

Through the above settings, accurate real-time monitoring of the status of each single battery 310 in the battery module 300 can be realized, which can effectively avoid failure of the battery module 300 or even explosion caused by the failure of the single battery 310, thereby causing casualties and power consumption. Problems with broken equipment. In addition, the corresponding detection device 130 and detection device 150 can be obtained according to the interface through which the controller 110 receives the trigger signal, so as to quickly locate and replace the faulty single battery 310 .

By adopting the above-mentioned battery thermal monitoring device 100, it is only necessary to find and replace the failed battery in a small range at the corresponding position, which greatly improves the efficiency of the later maintenance of the battery module 300, saves a lot of manpower, material resources and repair time, and can effectively avoid In the existing technology, when there is a single battery 310 failure, it is impossible to locate a specific faulty battery in real time and accurately, so that when the faulty battery is searched later, it is necessary to disassemble the entire module for manual search and marking. Moreover, secondary damage to the thermal fuse may be caused during disassembly, which may lead to misjudgment.

Wherein, the assembly plate 320 may be one or more, which is not specifically limited here. For example, when the assembly plate 320 is one, the bottoms of the individual batteries 310 are respectively arranged at the positioning holes, when there are two assembly plates 320, the shape and size of the two assembly plates 320 are the same, and the bottom of each single battery 310 is respectively arranged in each positioning hole of one assembly plate 320, each of the Tops of the single cells 310 are disposed in respective positioning holes of another assembly board 320 to fix each of the single cells 310 .

Optionally, in this embodiment, there is one assembly plate 320 , and the bottoms of the individual batteries 310 are respectively disposed in the positioning holes. In addition, in order to avoid the secondary explosion of each single battery 310 in the battery module 300 when the single battery 310 is leaking or blowing, optionally, in this embodiment, the assembly board 320 is made of insulating material.

The power supply 120 is a low power consumption power supply for providing power to the controller 110 , the alarm 140 , the detection device 130 , and multiple detection devices 150 in real time. The voltage of the power supply 120 can be 5V, 10V or 12V, etc., which is not specifically limited here, as long as it can provide electric energy to each device so as to detect each single battery 310 in real time.

Described controller 110 can be but not limited to single-chip microcomputer, digital signal processor (DSP), application-specific integrated circuit (ASI C), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device or The discrete hardware components are not specifically limited here, and can be set according to actual needs.

The detecting device 130 may be, but not limited to, a voltage detector, a current detector or a level signal detector, which are not specifically limited here and can be selected according to actual needs.

The detection device 150 may be a thermal fuse, a temperature sensor or a temperature detection element, which is not specifically limited here, and can be selected according to actual needs. For example, when the detection device 150 is a thermal fuse, each thermal fuse is respectively embedded in the assembly board 320 . When the detection device 150 is a thermal sensor, each of the detection devices 150 includes a plurality of thermal sensors connected in series, and the plurality of thermal sensors connected in series are respectively arranged at each positioning hole of a group of positioning holes to detect the set The temperature of the battery at the positioning hole, and when there is a temperature detected by a sensor that exceeds the preset value, an electrical signal is generated and sent to the detection device 130, so that the detection device 130 generates a trigger signal and sends To the controller 110, the controller 110 controls the alarm 140 to send out an alarm signal when receiving the trigger signal.

The alarm 140 may be, but not limited to, an audio alarm, a light alarm, an audible and visual alarm and/or a short message alarm, which are not specifically limited here.

Optionally, in this embodiment, the alarm 140 includes a short message alarm module, the short message alarm module is electrically connected to the controller 110, and the controller 110 is also used to record the information of the blown thermal fuse And fusing time, the controller 110 is also used to control the short message alarm module to send fusing information to the terminal device, the fusing information includes the information of the thermal fuse being blown and the fusing time.

In this embodiment, the positioning holes on the assembly board 320 are distributed in an array, that is, the assembly board 320 has positioning hole groups in different directions, and the plurality of detection devices 150 can be located along the positioning holes in the same direction. It can be set in groups, or it can be set in groups of positioning holes in different directions.

Optionally, in this embodiment, the multiple sets of positioning hole groups include multiple sets of first positioning hole groups and multiple sets of second positioning hole groups, and each of the first positioning hole groups is located along the first positioning hole set of the assembly plate 320. set in one direction, each of the second positioning hole groups is set along the second direction of the assembly plate 320, the plurality of detection devices 150 include a plurality of first detectors and a plurality of second detectors, and each of the second positioning holes A detector is respectively arranged along the first direction of the assembly plate 320 and is respectively close to a plurality of positioning holes of a group of first positioning hole groups, and each of the second detectors is respectively arranged along the second direction of the assembly plate 320 and are respectively close to a plurality of positioning holes of a set of second positioning hole groups, and any adjacent first detector and second detector are isolated from each other.

Through the above settings, when there is a single battery 310 fault, the first detector provided at the first positioning hole group corresponding to the faulty single battery 310 will generate a first signal and send it to the corresponding detection device 130 so that the detection device 130 generates a first trigger signal according to the first electrical signal and sends it to the controller 110, the second detector set at the second positioning hole group corresponding to the faulty single battery 310 will Generate a second electrical signal and send it to the corresponding detection device 130, so that the detection device 130 generates a second trigger signal correspondingly according to the second electrical signal and send it to the controller 110, so that the controller 110 respectively receives When the first trigger signal and the second trigger signal are received, the alarm device 140 is controlled to generate an alarm signal, and the controller 110 can obtain the corresponding first trigger signal according to the detection device 130 that sends the first trigger signal and the second trigger signal. A detector and a second detector, and then the faulty single battery 310 can be accurately located according to the first detector and the second detector, which greatly facilitates the user to carry out accurate inspection of the faulty single battery 310 Positioning and overhaul.

Optionally, in this embodiment, when the first detector and the second detector are thermal fuses, each of the first detectors and each of the second detectors are respectively embedded in the assembly board 320, and located on the same side of the assembly plate 320.

Wherein, the first detector and the second detector can be completely embedded in the assembly board 320, and can also be partially embedded in the assembly board 320, for example, each of the first detectors can be embedded in the The assembly plate 320 and the first detector are arranged along the line connecting the center of each positioning hole in the corresponding first positioning hole group, each of the second detectors is embedded in the assembly plate 320 and the second detection The device is arranged along the line connecting the center of each positioning hole in each corresponding second positioning hole group.

Please refer to FIG. 4, in order to further prompt the user when there is a faulty single battery 310 in the battery module 300, optionally, in this embodiment, the battery thermal monitoring device 100 also includes a terminal device associated with The wireless communication module 160, the wireless communication module 160 is electrically connected with the controller 110, the position information of each detection device 150 is pre-stored in the controller 110, and the controller 110 is used for receiving the When the trigger signal is received, the location information is sent to the terminal device through the wireless communication module 160.

Wherein, the wireless communication module 160 can be a bluetooth module or a wifi module, which is not specifically limited here, and can be set according to actual needs. For example, when the battery module 300 provided with the battery thermal monitoring device 100 is applied to In the case of a car, the wireless communication module 160 is in communicative connection with the on-board display device in the electric car.

In order to avoid the explosion of the battery module 300 caused by the failure of the single battery 310 and the continued use of the battery module 300 during the use of the battery module 300, optionally, in this embodiment, the battery module 300 It also includes a charging and discharging switch 330 , the control terminal of the charging and discharging switch 330 is electrically connected to the controller 110 , and the controller 110 is further configured to control the charging and discharging switch 330 to turn off when receiving the trigger signal.

Please refer to FIG. 5 , on the basis of the above, the present invention also provides a battery thermal monitoring method, which is applied to the above-mentioned battery thermal monitoring device 100 , and the method includes the following three steps: step S110 - step S130 .

Step S110 : when the detection device 150 detects that the temperature of the adjacent single battery 310 exceeds a preset value, it generates an electrical signal and sends it to the corresponding detection device 130 .

Step S120 : the detection device 130 generates a trigger signal according to the electrical signal and sends it to the controller 110 .

Step S130: the controller 110 controls the alarm device 140 to send out an alarm signal when receiving the trigger signal.

In summary, the battery thermal monitoring device 100 and method provided by the present invention are applied to a battery module 300 including an assembly plate 320 provided with a plurality of positioning holes and a plurality of single batteries 310. The battery thermal monitoring device 100 Through the power supply 120, the controller 110, the alarm 140, a plurality of detection devices 130 and a plurality of detection devices 150, each detection device 130 corresponds to a detection device 150, so that when the presence detection device 150 detects the adjacent single battery 310 When the temperature exceeds the preset value, an electrical signal is generated and sent to the corresponding detection device 130, so that the detection device 130 generates a trigger signal and sends it to the controller 110, and the controller 110 receives the When the above-mentioned trigger signal is used, the alarm device 140 is controlled to send an alarm signal, so as to realize the accurate real-time monitoring of the state of each single battery 310 in the battery module 300, and effectively avoid the failure of the battery module 300 caused by the failure of the single battery 310. Explosion occurs, causing casualties and damage to electrical equipment. According to the interface of the controller 110 receiving the trigger signal, the corresponding detection device 130 and detection device 150 are obtained, so as to realize the detection of the faulty single battery 310. Quickly locate and replace. In addition, by adopting the above-mentioned battery thermal monitoring device 100, it is only necessary to find and replace the failed battery in a small range at the corresponding location, which greatly improves the efficiency of the later maintenance of the battery module 300, saves a lot of manpower, material resources and repair time, and can also It can effectively avoid the situation that in the prior art, when searching for a faulty battery, the entire battery module 300 needs to be completely disassembled to cause secondary damage to the thermal fuse during the disassembly process, which may lead to misjudgment.

It should be noted that the term "comprising" or any other variant thereof is intended to cover a non-exclusive inclusion such that a process, article or device comprising a set of elements includes not only those elements but also other elements not expressly listed, Or also includes elements inherent in such a process, article or equipment. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, article or device comprising said element.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. a kind of hot monitoring device of battery, applied to battery modules, which is characterized in that the battery modules include multiple monomers electricity Pond and the assembled plate for being provided with multiple location holes, the multiple location hole forms multigroup location hole group, and every group of location hole includes At least two location holes, each single battery are arranged in a one-to-one correspondence in each location hole, the hot monitoring device packet of battery It includes：Power supply, controller, alarm, multiple detection devices and multiple detection devices, each detection device correspond to a detector Part, each detection device are respectively arranged in each location hole group of the assembled plate and close to each positioning of the location hole group Hole, each input terminal for detecting device connects respectively with the power supply, the output terminal input with corresponding detection device respectively End electrical connection, the output terminal of each detection device are electrically connected respectively with the controller, the controller and the alarm Electrical connection；

When detection device detects that the temperature of adjacent single battery is more than preset value, generate an electric signal and be simultaneously sent to correspondence Detection device so that the detection device, which generates, a trigger signal and is sent to the controller, the controller is receiving The alarm is controlled to send out alarm signal during to the trigger signal.

2. the hot monitoring device of battery according to claim 1, which is characterized in that multigroup location hole group includes multigroup the A positioning hole group and multigroup second location hole group, each first positioning hole group are set along the first direction of the assembled plate, respectively The second location hole group is set along the second direction of the assembled plate, and the multiple detection device includes multiple first detectors With multiple second detectors, each first detector is set and along the first direction of the assembled plate respectively close to one group respectively Multiple location holes of first positioning hole group, each second detector set and distinguish along the second direction of the assembled plate respectively Close to multiple location holes of one group of second location hole group, between the first detector and the second detector of arbitrary neighborhood mutually every From.

3. the hot monitoring device of battery according to claim 2, which is characterized in that each first detector and each described Two detectors are embedded at the assembled plate respectively, and positioned at the same side of the assembled plate.

4. the hot monitoring device of battery according to claim 1, which is characterized in that the hot monitoring device of battery, which further includes, to be associated with The wireless communication module of terminal device, the wireless communication module are electrically connected with the controller, are prestored in the controller The location information of each detection device, the controller are used for when receiving the trigger signal, pass through the channel radio Believe that module sends the location information to the terminal device.

5. the hot monitoring device of battery according to claim 1, which is characterized in that the detection device is voltage detector, The detection device is thermo-fuse, and the preset value is the fusing point of the thermo-fuse, and the trigger signal is low level signal；Institute It states thermo-fuse to fuse when the temperature of the single battery is more than the fusing point of the thermo-fuse, the voltage detector is detecting Low level signal is sent to the controller when voltage value is zero, the controller is controlled when receiving the low level signal The alarm sends out alarm signal.

6. the hot monitoring device of battery according to claim 5, which is characterized in that the controller is additionally operable to record and is blown Thermo-fuse information and fusing time, the alarm include short message alarm module, detect thermo-fuse fusing when, the control Device processed controls the short message alarm module to send fusing information to terminal device, and the fusing information includes the thermo-fuse being blown Information and fusing time.

7. the hot monitoring device of battery according to claim 1, which is characterized in that the battery modules further include charge and discharge and establish by cable It closes, the control terminal of the charge and discharge switch is electrically connected with the controller, and controller is additionally operable to receiving the trigger signal When, the charge and discharge switch is controlled to disconnect.

8. the hot monitoring device of battery according to claim 1, which is characterized in that the detection device is voltage check device Or current sensing means is for the voltage or electric current of the corresponding thermo-fuse of detection.

9. the hot monitoring device of battery according to claim 1, which is characterized in that each detection device includes multiple strings The heat sensor of connection, the heat sensor of multiple series connection are respectively arranged at each location hole of one group of location hole group, are set with detection The temperature of the battery at location hole is placed in, and when the temperature detected there are a sensor is more than the preset value, generation One electric signal is simultaneously sent to detection device, so that the detection device generates a trigger signal and is sent to the controller, institute State controller controls the alarm to send out alarm signal when receiving the trigger signal.

10. a kind of hot monitoring method of battery, special applied to the hot monitoring device of battery described in any one of claim 1-9 Sign is, the method includes：

When detection device detects that the temperature of adjacent single battery is more than preset value, generate an electric signal and be sent to corresponding Detection device；

The detection device generates a trigger signal according to the electric signal and is sent to controller；

The controller controls alarm to send out alarm signal when receiving the trigger signal.