CN207096410U - A kind of battery case Measurement System of Air Pressure - Google Patents
A kind of battery case Measurement System of Air Pressure Download PDFInfo
- Publication number
- CN207096410U CN207096410U CN201720730118.9U CN201720730118U CN207096410U CN 207096410 U CN207096410 U CN 207096410U CN 201720730118 U CN201720730118 U CN 201720730118U CN 207096410 U CN207096410 U CN 207096410U
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- signal
- battery case
- bms
- processing module
- signal processing
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
Battery case Measurement System of Air Pressure of the present utility model, including battery case, BMS and alarm module；Battery case includes baroceptor, signal processing module, battery modules and switch element；Baroceptor is connected with signal processing module, and signal processing module is connected with BMS, and battery modules are connected with switch element, and switch element is connected with BMS, and BMS is connected with alarm module；Baroceptor is used to sense the pressure of gas in battery case and transmit the pressure signal sensed to signal processing module, signal processing module is used to handle the pressure signal of baroceptor transmission and transmit the signal after processing to BMS, BMS judges whether the signal of signal processing module transmission is more than preset value, if the signal of signal processing module transmission is more than preset value, BMS controls switch unit, battery modules are controlled to stop charge or discharge, simultaneously, BMS transmission of control signals to alarm module, control alarm module sends alarm signal.
Description
【Technical field】
It the utility model is related to electric vehicle engineering field, more particularly to a kind of battery case Measurement System of Air Pressure.
【Background technology】
Electrokinetic cell is the core of electric automobile, and the comprehensive embodiment of automobile engineering and electric power project engineering, power electric
The security performance in pond, affect the security performance of vehicle.Electrokinetic cell is that multiple cells are formed into battery by connection in series-parallel
After module, place into normal cell case, ultimately form battery case one by one.To adapt to the complicated building ring of electric automobile
Border, battery case, which requires, reaches IP67 standards, and therefore, whole battery case is a completely closed space.Existing battery case
On body, pressure-reducing valve is generally equipped with, when air pressure reaches setting value in casing, air pressure forces pressure-reducing valve to be opened, and air pressure obtains in casing
To release, it is therefore prevented that the blast of battery case.This is the mode of battery case passive protection, still, causes battery case pressure abnormity
Reason is a lot, and battery case only releases air pressure, does not carry out pressure abnormity early warning and the processing of battery case input and output working condition
(such as battery modules stopping charge or discharge), battery case still suffers from certain potential safety hazard.
In consideration of it, real be necessary to provide a kind of new battery case Measurement System of Air Pressure to overcome drawbacks described above.
【Utility model content】
The purpose of this utility model be to provide it is a kind of can be to the pressure abnormity active control and the electricity of processing in battery case
Pond case Measurement System of Air Pressure.
To achieve these goals, the utility model provides a kind of battery case Measurement System of Air Pressure, including battery case, BMS
And alarm module；The battery case includes baroceptor, signal processing module, battery modules and switch element；The battery
Case is a sealing container, and the baroceptor, the signal processing module, the battery modules and the switch element are received
It is dissolved in the battery case；The baroceptor is connected with the signal processing module, the signal processing module with it is described
BMS is connected, and the battery modules are connected with the switch element, and the switch element is connected with the BMS, the BMS and institute
Alarm module is stated to be connected；The baroceptor is used to sense the pressure of gas in the battery case and believes the pressure sensed
Number transmit to the signal processing module, the signal processing module is used to enter the pressure signal of baroceptor transmission
Row, which is handled, simultaneously transmits the signal after processing to the BMS, and the BMS judges whether is signal that the signal processing module transmits
More than preset value, if the signal of signal processing module transmission is more than preset value, the BMS controls the switch element to break
Open, and then control the battery modules to stop charge or discharge, meanwhile, the BMS transmission of control signals to the alarm module,
The alarm module is controlled to send alarm signal.
In a preferred embodiment, the baroceptor includes film and the resistance being connected with the film；Institute
Film is stated to pressure-sensitive, when the pressure of gas in the battery case reduces or during rise, the deformation of thin membrane, the resistance
Resistance changes, and so as to which the loop voltage of the resistance changes, the baroceptor is by the electricity at the resistance both ends
Pressure is transmitted to the signal processing module.
In a preferred embodiment, the signal processing module is analog-to-digital conversion module, the signal processing module
The voltage signal that the baroceptor transmits is converted into data signal and by the communication port transmission of the battery case to institute
State BMS.
In a preferred embodiment, the alarm module includes audible alarm module and light alarm module；The sound
Sound alarm module includes the first electronic switch, first resistor, buzzer, second resistance and power supply；First electronic switch
First end is connected by the first resistor with control signal, the second end and the buzzer of first electronic switch
First end is connected, and the second end of the buzzer is connected by the second resistance with the power supply, first electronic switch
The 3rd end ground connection；The control signal is connected with the BMS；The light alarm module includes the second electronic switch, the 3rd
Resistance, light emitting diode and the 4th resistance；The first end of second electronic switch passes through the 3rd resistor and control input
End is connected, and the second end of second electronic switch is connected with the anode of the light emitting diode, the moon of the light emitting diode
Pole is connected by the 4th resistance with the power supply, the 3rd end ground connection of second electronic switch.
In a preferred embodiment, first electronic switch and second electronic switch are the pole of NPN types three
First end, the second end and the 3rd end of pipe, first electronic switch and second electronic switch correspond respectively to triode
Base stage, colelctor electrode and emitter stage.
Battery case Measurement System of Air Pressure of the present utility model, baroceptor is set to detect battery case in real time in battery case
The pressure of interior gas, and the pressure signal detected is transmitted to the signal processing module, the signal processing module is to institute
State the pressure signal that baroceptor transmits and handled and transmit the signal after processing to the BMS, the BMS and judge institute
Whether the signal for stating signal processing module transmission is more than preset value, is preset if the signal of signal processing module transmission is more than
Value, the BMS control the switch element to disconnect, and then control the battery modules to stop charge or discharge, meanwhile, it is described
BMS transmission of control signals controls the alarm module to send alarm signal, realized in battery case to the alarm module
The active control of pressure abnormity and processing, improve the security of battery modules work.
【Brief description of the drawings】
Fig. 1 is the functional block diagram for the battery case Measurement System of Air Pressure that the utility model embodiment provides.
Fig. 2 is the circuit diagram for the alarm module that the utility model embodiment provides.
【Embodiment】
In order that the purpose of this utility model, technical scheme and advantageous effects become apparent from understanding, below in conjunction with
Accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely retouched
State, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole embodiments.
Based on the embodiment in the utility model, those of ordinary skill in the art are obtained under the premise of creative work is not made
Every other embodiment, belong to the utility model protection scope.
When an element was considered as with another element " being connected ", it can be directly to another element or
It may be simultaneously present centering elements.Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to this reality
The implication being generally understood that with new those skilled in the art is identical.Made herein in specification of the present utility model
Term is intended merely to describe the purpose of specific embodiment, it is not intended that in limitation the utility model.
Referring to Fig. 1, a kind of battery case Measurement System of Air Pressure 100 provided by the utility model, including battery case 10, BMS
(Battery Management System, battery management system) 20 and alarm module 30.The battery case 10 includes air pressure transmission
Sensor 11, signal processing module 12, battery modules 13 and switch element 14.The battery case 10 is a sealing container, the gas
Pressure sensor 11, the signal processing module 12, the battery modules 13 and the switch element 14 are contained in the battery
In case 10.The baroceptor 11 is connected with the signal processing module 12, the signal processing module 12 and the BMS20
It is connected, the battery modules 13 are connected with the switch element 14, and the switch element 14 is connected with the BMS20, described
BMS20 is connected with the alarm module 30.The baroceptor 11 is for sensing the pressure of gas in the battery case 10 simultaneously
The pressure signal sensed is transmitted to the signal processing module 12.The signal processing module 12 is used for the air pressure transmission
The pressure signal that sensor 11 transmits is handled and is transmitted the signal after processing to the BMS20, described in the BMS20 judges
Whether the signal that signal processing module 12 transmits is more than preset value, is preset if the signal that the signal processing module 12 transmits is more than
Value, the BMS20 control the switch element 14 to disconnect, and then control the battery modules 13 to stop charge or discharge, together
When, the BMS20 transmission of control signals to the alarm module 30, control the alarm module 30 to send alarm signal.
The baroceptor 11 includes film and the resistance being connected with the film.The film to pressure-sensitive, when
When the pressure of gas is reduced or raised in the battery case 10, the deformation of thin membrane, the resistance of the resistance changes, so as to
The loop voltage of the resistance changes, and the baroceptor 11 transmits the voltage at the resistance both ends to the signal
Processing module 12.In the present embodiment, the voltage at the resistance both ends is 0-5V.It is to be appreciated that the baroceptor
11 quantity is different and different according to the battery case 10.
In the present embodiment, the signal processing module 12 is analog-to-digital conversion module, and the signal processing module 12 will
The voltage signal that the baroceptor 11 transmits be converted into data signal and by the communication port transmission of the battery case 10 extremely
The BMS20.
The battery modules 13 include the cell of multiple connection in series-parallel connection.
In the present embodiment, the switch element 14 is relay.
Referring to Fig. 2, the alarm module 30 includes audible alarm module 31 and light alarm module 32.The audible alarm
Module 31 and the light alarm module 32 are connected with the BMS20.
The audible alarm module 31 include the first electronic switch Q1, first resistor R1, buzzer U1, second resistance R2 and
Power supply VCC.The first end of the first electronic switch Q1 is connected by the first resistor R1 with control signal CTR, described
First electronic switch Q1 the second end is connected with the first end of the buzzer U1, and the second end of the buzzer U1 passes through described
Second resistance R2 is connected with the power supply VCC, the 3rd end ground connection of the first electronic switch Q1.The control signal CTR
It is connected with the BMS20.
The light alarm module 32 includes the second electronic switch Q2,3rd resistor R3, light emitting diode D1 and the 4th resistance
R4.The first end of the second electronic switch Q2 is connected by the 3rd resistor R3 with control signal C TR, and described second
Electronic switch Q2 the second end is connected with the anode of the light emitting diode D1, and the negative electrode of the light emitting diode D1 passes through described
4th resistance R4 is connected with the power supply VCC, the 3rd end ground connection of the second electronic switch Q2.
When the control signal of control signal CTR inputs is low level, the first electronic switch Q1 and described
Second electronic switch Q2 ends；When the control signal of control signal CTR inputs is high level, first electronic cutting
Q1 and the second electronic switch Q2 conductings are closed, the buzzer U1 sends alarm, and the light emitting diode D1 lights.
In the present embodiment, the first electronic switch Q1 and the second electronic switch Q2 is the pole of NPN types three
Pipe, the first electronic switch Q1 and the second electronic switch Q2 first end, the second end and the 3rd end correspond respectively to three
Base stage, colelctor electrode and the emitter stage of pole pipe.In other embodiments, the first electronic switch Q1 and second electronic cutting
It can be other switches with similar functions to close Q2, such as IGBT or metal-oxide-semiconductor field effect transistor etc..
The operation principle of the battery case Measurement System of Air Pressure 100 is as follows：
The film of the baroceptor 11 senses the pressure of gas in the battery case 10 and deformed upon, and described thin
The resistance of the resistance of film connection changes, and is changed so as to the loop voltage of the resistance, the baroceptor
11 transmit the voltage at the resistance both ends to the signal processing module 12, and the signal processing module 12 is by the air pressure transmission
The voltage signal that sensor 11 transmits is converted into data signal and by the communication port transmission of the battery case 10 to the BMS20,
The BMS20 judges whether the signal that the signal processing module 12 transmits is more than preset value, if the signal processing module 12
The signal of transmission is more than preset value, and the BMS20 controls the switch element 14 to disconnect, and then controls the battery modules 13 to stop
Only charge or discharge, meanwhile, the BMS20 transmission high level to the control signal CTR, the audible alarm module 31
Buzzer U1 sends alarm, and the light emitting diode D1 of the light alarm module 32 lights.
Battery case Measurement System of Air Pressure 100 of the present utility model, baroceptor 11 is set to examine in real time in battery case 10
The pressure of gas in battery case 10 is surveyed, and the pressure signal detected is transmitted to the signal processing module 12, the signal
The pressure signal that processing module 12 is transmitted to the baroceptor 11 is handled and is transmitted the signal after processing to described
BMS20, the BMS20 judge whether the signal that the signal processing module 12 transmits is more than preset value, if the signal transacting
The signal that module 12 is transmitted is more than preset value, and the BM S20 control the switch element 14 to disconnect, and then control the battery
Module 13 stops charge or discharge, meanwhile, the BMS20 transmission of control signals controls the alarm to the alarm module 30
Module 30 sends alarm signal, realizes the active control to the pressure abnormity in battery case 10 and processing, improves battery mould
The security of the work of group 13.
The utility model is not restricted to described in specification and embodiment, therefore for the personnel of familiar field
For additional advantage and modification is easily achieved, therefore in the universal limited without departing substantially from claim and equivalency range
Spirit and scope in the case of, the utility model is not limited to specific details, representational equipment and shown here as with retouching
The examples shown stated.
Claims (5)
- A kind of 1. battery case Measurement System of Air Pressure, it is characterised in that：Including battery case, BMS and alarm module；The battery case and bag Include baroceptor, signal processing module, battery modules and switch element；The battery case is a sealing container, the air pressure Sensor, the signal processing module, the battery modules and the switch element are contained in the battery case；The gas Pressure sensor is connected with the signal processing module, and the signal processing module is connected with the BMS, the battery modules and institute State switch element to be connected, the switch element is connected with the BMS, and the BMS is connected with the alarm module；The air pressure transmission Sensor is used to sense the pressure of gas in the battery case and transmit the pressure signal sensed to the signal processing module, The signal processing module is used to handle the pressure signal of baroceptor transmission and pass the signal after processing The BMS is transported to, the BMS judges whether the signal of the signal processing module transmission is more than preset value, if at the signal The signal of reason module transfer is more than preset value, and the BMS controls the switch element to disconnect, and then controls the battery modules to stop Only charge or discharge, meanwhile, the BMS transmission of control signals to the alarm module, control the alarm module to send alarm Signal.
- 2. battery case Measurement System of Air Pressure as claimed in claim 1, it is characterised in that：The baroceptor include film and The resistance being connected with the film；The film is to pressure-sensitive, when the pressure of gas in the battery case reduces or during rise, The deformation of thin membrane, the resistance of the resistance change, and are changed so as to the loop voltage of the resistance, the air pressure transmission Sensor transmits the voltage at the resistance both ends to the signal processing module.
- 3. battery case Measurement System of Air Pressure as claimed in claim 2, it is characterised in that：The signal processing module turns for modulus Block is changed the mold, the voltage signal that the baroceptor transmits is converted into data signal and by described by the signal processing module The communication port transmission of battery case is to the BMS.
- 4. battery case Measurement System of Air Pressure as claimed in claim 3, it is characterised in that：The alarm module includes audible alarm Module and light alarm module；The audible alarm module include the first electronic switch, first resistor, buzzer, second resistance and Power supply；The first end of first electronic switch is connected by the first resistor with control signal, first electronic cutting The second end closed is connected with the first end of the buzzer, and the second end of the buzzer passes through the second resistance and the electricity Source is connected, the 3rd end ground connection of first electronic switch；The control signal is connected with the BMS；The light alarm mould Block includes the second electronic switch, 3rd resistor, light emitting diode and the 4th resistance；The first end of second electronic switch passes through The 3rd resistor is connected with control signal, the second end of second electronic switch and the negative electrode phase of the light emitting diode Even, the anode of the light emitting diode is connected by the 4th resistance with the power supply, and the 3rd of second electronic switch the End ground connection.
- 5. battery case Measurement System of Air Pressure as claimed in claim 4, it is characterised in that：First electronic switch and described Two electronic switches are NPN type triode, the first end of first electronic switch and second electronic switch, the second end and 3rd end corresponds respectively to base stage, colelctor electrode and the emitter stage of triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720730118.9U CN207096410U (en) | 2017-06-21 | 2017-06-21 | A kind of battery case Measurement System of Air Pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720730118.9U CN207096410U (en) | 2017-06-21 | 2017-06-21 | A kind of battery case Measurement System of Air Pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207096410U true CN207096410U (en) | 2018-03-13 |
Family
ID=61553351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720730118.9U Expired - Fee Related CN207096410U (en) | 2017-06-21 | 2017-06-21 | A kind of battery case Measurement System of Air Pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207096410U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738805A (en) * | 2018-12-29 | 2019-05-10 | 蜂巢能源科技有限公司 | Battery and its test method, device, electronic equipment |
| CN117346946A (en) * | 2023-11-29 | 2024-01-05 | 宁德时代新能源科技股份有限公司 | Air pressure sampling circuit, method, battery management system and power utilization device |
-
2017
- 2017-06-21 CN CN201720730118.9U patent/CN207096410U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738805A (en) * | 2018-12-29 | 2019-05-10 | 蜂巢能源科技有限公司 | Battery and its test method, device, electronic equipment |
| CN109738805B (en) * | 2018-12-29 | 2021-02-23 | 蜂巢能源科技有限公司 | Battery, testing method and device thereof, and electronic equipment |
| CN117346946A (en) * | 2023-11-29 | 2024-01-05 | 宁德时代新能源科技股份有限公司 | Air pressure sampling circuit, method, battery management system and power utilization device |
| CN117346946B (en) * | 2023-11-29 | 2024-05-03 | 宁德时代新能源科技股份有限公司 | Air pressure sampling circuit, method, battery management system and power utilization device |
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