CN213459915U - Battery pack with self-monitoring function - Google Patents
Battery pack with self-monitoring function Download PDFInfo
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- CN213459915U CN213459915U CN202022588599.9U CN202022588599U CN213459915U CN 213459915 U CN213459915 U CN 213459915U CN 202022588599 U CN202022588599 U CN 202022588599U CN 213459915 U CN213459915 U CN 213459915U
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- resistor
- battery pack
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- capacitor
- temperature
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims description 45
- 239000003990 capacitor Substances 0.000 claims description 33
- 238000011084 recovery Methods 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007123 defense Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a battery pack with a self-monitoring function, which comprises a shell, a battery pack and a monitoring module, wherein the battery pack is arranged inside the shell and comprises a plurality of batteries which are arranged in parallel; the monitoring module comprises a temperature sensor, a voltage detection unit, a monitoring unit, a micro-control center, an alarm, a cooling unit, a pressure sensor and a collision sensor, and each battery is correspondingly provided with one temperature sensor and one voltage detection unit; the monitoring unit is respectively and electrically connected with the temperature sensor, the voltage detection unit, the pressure sensor, the collision sensor and the micro-control center, and is used for acquiring temperature, voltage, pressure and collision information and sending the information to the micro-control center; the micro-control center is electrically connected with the alarm; the cooling unit is electrically connected with the micro-control center. The battery pack has a self-monitoring function, and can monitor and regulate the temperature, voltage and collision condition of the battery pack in real time.
Description
Technical Field
The utility model belongs to the technical field of power battery, concretely relates to battery package with from monitoring function.
Background
In order to solve the energy crisis and the environmental crisis, the high development of the new energy industry has been globalized, and especially the power battery is widely used in the automobile. With the increasing of the holding capacity of electric automobiles, more and more electric automobiles participate in traffic, and inevitable electric automobile collision and safety accidents are increased. Due to the high energy density, high voltage platform, the use of organic electrolyte, specific positive and negative electrode active materials and other reasons of the power battery, compared with the conventional fuel oil automobile, the electric automobile has many specific safety problems in the collision process, for example, the power battery may be ignited or even exploded in the collision process, the electrolyte leaks, and the high-voltage short circuit occurs. Therefore, reliability and safety of the power battery pack are crucial. However, currently used car batteries are not provided with an effective monitoring system, and only active defense is performed by the car batteries, for example, defense is performed in the aspects of improving heat dissipation capacity and the like. The battery system without monitoring does not have early warning, and when the problems of battery faults, battery quality and the like occur, the battery system cannot be prevented from getting in the bud, so that potential safety hazards inevitably exist and the driving safety is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned problem that exists among the prior art, the utility model provides a battery package with from monitoring function. The to-be-solved technical problem of the utility model is realized through following technical scheme:
the utility model provides a battery pack with a self-monitoring function, which comprises a shell, a battery pack and a monitoring module, wherein,
the battery pack is arranged in the shell and comprises a plurality of batteries which are arranged in parallel;
the monitoring module comprises a temperature sensor, a voltage detection unit, a monitoring unit, a micro-control center, an alarm, a cooling unit, a pressure sensor and a collision sensor, and each battery is correspondingly provided with one temperature sensor and one voltage detection unit; the monitoring unit is respectively and electrically connected with the temperature sensor, the voltage detection unit, the pressure sensor, the collision sensor and the micro-control center, and is used for acquiring temperature, voltage, pressure and collision information and sending the information to the micro-control center; the micro-control center is electrically connected with the alarm and is used for controlling the alarm to give an alarm when the temperature, the voltage, the pressure or the collision information reaches a preset threshold value; and the cooling unit is electrically connected with the micro-control center and is used for receiving the control of the micro-control center to start when the temperature reaches a preset threshold value.
The utility model discloses an embodiment, temperature sensor the voltage detection unit pressure sensor with collision sensor respectively through the CAN bus with the monitoring unit is connected.
In an embodiment of the present invention, the voltage detecting unit includes a comparator COM, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4 and a fifth capacitor C5, wherein,
the 1 st pin and the 4 th pin of the comparator COM are connected to an output Uo, the first capacitor C1 and the first resistor R1 are connected in series between the input end Ui and a ground terminal GND, and the sixth resistor R6 and the fourth capacitor C4 are connected in series between the 2 nd pin of the comparator COM and the ground terminal GND; the fifth resistor R5 and the third capacitor C3 are connected in series between the 3 rd pin of the comparator COM and the ground GND, the fourth resistor R4 and the fifth capacitor C5 are connected in series between the 5 th pin of the comparator COM and the ground GND, and the second capacitor C2 and the third resistor R3 are connected in series at a node between the 2 nd pin of the comparator COM and the fourth resistor R4 and the fifth capacitor C5;
the second resistor R2 is connected in series between the 1 st pin of the comparator COM and the input terminal Ui.
The utility model discloses an embodiment, battery package with from monitor function is still including setting up the outside touch display screen of shell, touch display screen electricity is connected the micro-control center for set temperature threshold value and voltage threshold value and show current temperature, voltage and pressure in real time.
In one embodiment of the present invention, the cooling unit includes a liquid supply tank, a liquid circulation pipe, a liquid recovery tank, and a solenoid valve connected in sequence, wherein the liquid supply tank and the liquid recovery tank are disposed outside the housing;
the liquid circulation tube is arranged inside the outer shell and is coiled outside each battery; the liquid supply tank is used for supplying liquid to the liquid circulation pipe when the temperature reaches a preset threshold value; the electromagnetic valve is electrically connected with the micro-control center, and the micro-control center can control the electromagnetic valve to be opened when the temperature reaches a preset threshold value.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model discloses a battery package can show through the inside temperature of temperature sensor and voltage detection unit real-time supervision battery package and the voltage condition, can also report to the police when surpassing the threshold value to make the staff know the behavior of battery package at any time.
2. The utility model discloses a battery package can judge whether electric automobile bumps, overturns through the safe state of real-time detection power battery package, and the signal transmission that the sensor was gathered reports to the central micro-control in, and the central micro-control is reported to the police through the alarm, in time takes many-sided safety precaution, measure, has effectively prevented the emergence of incident such as power battery package burning or explosion.
3. The battery pack is provided with the cooling unit, and can be started under the control of the micro-control center when the temperature reaches a preset threshold value so as to adjust the temperature inside the battery pack and reduce the potential safety hazard caused by overhigh temperature of the battery pack.
Drawings
Fig. 1 is a schematic structural diagram of a battery pack with a self-monitoring function according to an embodiment of the present invention;
fig. 2 is a circuit diagram of a voltage detection unit according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a cooling unit according to an embodiment of the present invention.
The reference numbers illustrate:
1-a housing; 2-a battery pack; 21-a battery; 3-a monitoring module; 31-a temperature sensor; 32-a voltage detection unit; 33-a monitoring unit; 34-micro control center; 35-an alarm; 36-a cooling unit; 361-liquid supply tank; 362-liquid circulation tube; 363-a liquid recovery tank; 364-solenoid valve; 37-a pressure sensor; 38-a crash sensor; 39-touch display screen.
Detailed Description
In order to further explain the technical means and effects of the present invention adopted to achieve the objectives of the present invention, the following description will be made in conjunction with the accompanying drawings and the detailed description of the preferred embodiments to explain in detail the battery pack with self-monitoring function according to the present invention.
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings. The technical means and effects of the present invention to achieve the predetermined objects can be more deeply and specifically understood through the description of the specific embodiments, however, the attached drawings are only for reference and description and are not intended to limit the technical solution of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or device that comprises a list of elements does not include only those elements but may include other elements not expressly listed. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article or device comprising the element.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a battery pack with a self-monitoring function according to an embodiment of the present invention. The battery pack comprises a housing 1, a battery pack 2 and a monitoring module 3, wherein the battery pack 2 is arranged inside the housing 1 and comprises a plurality of batteries 21 arranged in parallel. The monitoring module 3 comprises a temperature sensor 31, a voltage detection unit 32, a monitoring unit 33, a micro-control center 34, an alarm 35, a cooling unit 36, a pressure sensor 37 and a collision sensor 38. The temperature sensor 31, the voltage detection unit 32, the monitoring unit 33 and the micro control center 34 are arranged inside the shell 1. A pressure sensor 37 and an impact sensor 38 are provided on the outer wall of the housing 1. In the present embodiment, the temperature sensor 31 is a temperature sensor. The voltage detection unit 32 is a TL431 voltage detection chip. Because the battery core group 2 in the battery pack has a plurality of battery cores 21, the temperature and voltage conditions in the battery pack cannot be monitored comprehensively only by one temperature sensor and one voltage detection chip, therefore, each battery core 21 is correspondingly provided with one temperature sensor 31 and one voltage detection unit 32, and the temperature sensor 31 and the voltage detection unit 32 are respectively used for collecting the temperature and the voltage of each battery core 21 in the battery pack. The temperature sensor 31, the voltage detection unit 32, the pressure sensor 37, and the collision sensor 38 are connected to the monitoring unit 33 via CAN buses, respectively.
Further, please refer to fig. 2, fig. 2 is a circuit diagram of a voltage detection unit according to an embodiment of the present invention. The voltage detection unit 32 of the present embodiment includes a comparator COM, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, and a fifth capacitor C5, wherein the 1 st pin and the 4 th pin of the comparator COM are connected to the output terminal Uo, the first capacitor C1 and the first resistor R1 are connected in series between the input terminal Ui and the ground terminal GND, and the sixth resistor R6 and the fourth capacitor C4 are connected in series between the 2 nd pin of the comparator COM and the ground terminal GND; the fifth resistor R5 and the third capacitor C3 are connected in series between the 3 rd pin of the comparator COM and the ground GND, the fourth resistor R4 and the fifth capacitor C5 are connected in series between the 5 th pin of the comparator COM and the ground GND, and the second capacitor C2 and the third resistor R3 are connected in series at a node between the 2 nd pin of the comparator COM and the fourth resistor R4 and the fifth capacitor C5; the second resistor R2 is connected in series between the 1 st pin of the comparator COM and the input Ui. The voltage detection unit 32 is used for detecting the voltage value of each battery in the battery pack and comparing the voltage value with preset data, the performance of the battery pack can be controlled in time, a user can know the service condition of the battery pack conveniently, and a manufacturer can also know the problem of the battery pack in time.
The monitoring unit 33 is electrically connected to the temperature sensor 31, the voltage detection unit 32, the pressure sensor 37, the collision sensor 38 and the micro-control center 34, respectively, for acquiring temperature, voltage, pressure and collision information and transmitting to the micro-control center 34. In order to call the attention of the operator when the temperature, the voltage or the collision pressure exceeds a certain range, the system can also comprise an alarm 35, and the micro control center 34 is electrically connected with the alarm 35 and used for controlling the alarm 35 to give an alarm when the temperature, the voltage or the collision pressure reaches a preset threshold value.
In order to be able to consider setting and inputting the threshold values of temperature, voltage and collision pressure and display the temperature and voltage data in real time, the battery pack monitoring device of the electric vehicle may further include a touch display screen 39 electrically connected to the micro control center 34 for setting the temperature threshold value, the voltage threshold value and the collision threshold value and displaying the current temperature and voltage in real time. In other embodiments, the micro control center 34 may also be connected to the mobile phone APP, and operate and view through the mobile phone APP.
Further, the cooling unit 36 is electrically connected to the micro control center 34, and is configured to receive control of the micro control center 34 to start when the temperature reaches a preset threshold value, so as to cool the battery pack of the electric vehicle, adjust the temperature inside the battery pack, and reduce potential safety hazards caused by too high temperature of the battery pack. Specifically, please refer to fig. 3, fig. 3 is a schematic structural diagram of a cooling unit according to an embodiment of the present invention. The cooling unit 36 of the present embodiment includes a liquid supply tank 361, a liquid circulation pipe 362, and a liquid recovery tank 363 that are connected in this order, wherein the liquid supply tank 361 and the liquid recovery tank 363 are provided outside the housing; a liquid circulation pipe 362 is provided inside the case 1 and wound outside each cell 21; the liquid supply tank 361 is used for supplying liquid to the liquid circulation pipe 362 when the temperature reaches a preset threshold value.
Further, a solenoid valve 364 is arranged on the liquid supply tank 361, the solenoid valve 364 is electrically connected with the micro-control center 34, and the micro-control center 34 can control the solenoid valve 364 to be opened when the temperature reaches a preset threshold value.
Specifically, when the temperature collected by the temperature sensor 31 reaches a first preset threshold, the micro-control center 34 controls the electromagnetic valve 364 on the liquid supply tank 361 to open, the liquid in the liquid supply tank 361 enters the liquid circulation pipe 362, the interior of the battery pack is cooled by the flow of the cooling liquid, and then the liquid flowing out of the battery pack finally enters the liquid recovery tank 363; when the temperature collected by the temperature sensor 31 drops to a second preset threshold, the micro-control center 34 controls the electromagnetic valve 364 on the liquid supply tank 361 to close, and the cooling process stops. It should be noted that the liquid supply tank 361 and the liquid recovery tank 363 of the present embodiment can be replaced with each other, that is, the liquid recovery tank 363 can also be used as a liquid supply tank, and after the liquid recovery tank 363 is full of water and cooled, the position of the liquid recovery tank 363 of the liquid supply tank 361 can be replaced, so as to realize the circulation of cooling water and reduce the waste of water resources.
The battery pack of the embodiment can monitor and display the temperature and voltage conditions inside the battery pack in real time through the temperature sensor and the voltage detection unit, and can also give an alarm when the temperature and voltage conditions exceed a threshold value, so that a worker can know the working condition of the battery pack at any time; whether the electric automobile collides or overturns can be judged by detecting the safety state of the power battery pack in real time, signals collected by the sensor are transmitted to the micro-control center, the micro-control center gives an alarm through the alarm, and various safety pre-warning and measures are taken in time, so that the safety accidents such as combustion or explosion of the power battery pack are effectively prevented. In addition, the battery pack is provided with a cooling unit, and the battery pack can be started under the control of the micro-control center when the temperature reaches a preset threshold value so as to adjust the temperature inside the battery pack and reduce the potential safety hazard caused by overhigh temperature of the battery pack.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (5)
1. A battery pack with a self-monitoring function, comprising a housing (1), a battery pack (2) and a monitoring module (3), wherein,
the battery pack (2) is arranged in the shell (1) and comprises a plurality of batteries (21) which are arranged in parallel;
the monitoring module (3) comprises a temperature sensor (31), a voltage detection unit (32), a monitoring unit (33), a micro-control center (34), an alarm (35), a cooling unit (36), a pressure sensor (37) and a collision sensor (38), and each battery (21) is correspondingly provided with one temperature sensor (31) and one voltage detection unit (32); the monitoring unit (33) is electrically connected with the temperature sensor (31), the voltage detection unit (32), the pressure sensor (37), the collision sensor (38) and the micro-control center (34) respectively, and is used for acquiring temperature, voltage, pressure and collision information and sending the information to the micro-control center (34); the micro control center (34) is electrically connected with the alarm (35) and is used for controlling the alarm (35) to give an alarm when the temperature, the voltage, the pressure or the collision information reaches a preset threshold value; the cooling unit (36) is electrically connected with the micro control center (34) and is used for receiving the control of the micro control center (34) to start when the temperature reaches a preset threshold value.
2. The battery pack with a self-monitoring function according to claim 1, wherein the temperature sensor (31), the voltage detection unit (32), the pressure sensor (37), and the collision sensor (38) are connected to the monitoring unit (33) through CAN buses, respectively.
3. The battery pack with a self-monitoring function according to claim 1, wherein the voltage detection unit (32) includes a comparator COM, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4 and a fifth capacitor C5, wherein,
the 1 st pin and the 4 th pin of the comparator COM are connected to an output Uo, the first capacitor C1 and the first resistor R1 are connected in series between the input end Ui and a ground terminal GND, and the sixth resistor R6 and the fourth capacitor C4 are connected in series between the 2 nd pin of the comparator COM and the ground terminal GND; the fifth resistor R5 and the third capacitor C3 are connected in series between the 3 rd pin of the comparator COM and the ground GND, the fourth resistor R4 and the fifth capacitor C5 are connected in series between the 5 th pin of the comparator COM and the ground GND, and the second capacitor C2 and the third resistor R3 are connected in series at a node between the 2 nd pin of the comparator COM and the fourth resistor R4 and the fifth capacitor C5;
the second resistor R2 is connected in series between the 1 st pin of the comparator COM and the input terminal Ui.
4. The battery pack with the self-monitoring function according to claim 1, further comprising a touch display screen (39) arranged outside the housing (1), wherein the touch display screen (39) is electrically connected with the micro-control center (34) and is used for setting a temperature threshold value and a voltage threshold value and displaying the current temperature, voltage and pressure in real time.
5. The battery pack with the self-monitoring function according to any one of claims 1 to 4, wherein the cooling unit (36) includes a liquid supply tank (361), a liquid circulation pipe (362), a liquid recovery tank (363), and a solenoid valve (364) connected in this order, wherein the liquid supply tank (361) and the liquid recovery tank (363) are provided outside the case (1);
the liquid circulation tube (362) is arranged inside the casing (1) and is coiled outside each cell (21); the liquid supply tank (361) is used for supplying liquid to the liquid circulation pipe (362) when the temperature reaches a preset threshold value; the solenoid valve (364) is electrically connected to the micro-control centre (34), the micro-control centre (34) being able to control the solenoid valve (364) to open when the temperature reaches a preset threshold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022588599.9U CN213459915U (en) | 2020-11-10 | 2020-11-10 | Battery pack with self-monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022588599.9U CN213459915U (en) | 2020-11-10 | 2020-11-10 | Battery pack with self-monitoring function |
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| Publication Number | Publication Date |
|---|---|
| CN213459915U true CN213459915U (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022588599.9U Expired - Fee Related CN213459915U (en) | 2020-11-10 | 2020-11-10 | Battery pack with self-monitoring function |
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| Country | Link |
|---|---|
| CN (1) | CN213459915U (en) |
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2020
- 2020-11-10 CN CN202022588599.9U patent/CN213459915U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210615 |
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