CN213459859U

CN213459859U - Battery internal heat production real-time monitoring device

Info

Publication number: CN213459859U
Application number: CN202022880260.6U
Authority: CN
Inventors: 王选朋; 周豪; 李寒羽; 冯进秋
Original assignee: Wuhan Nanostar Technology Co ltd
Current assignee: Wuhan Nanostar Technology Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-06-15
Anticipated expiration: 2030-12-03

Abstract

A real-time monitoring device for heat production in a battery comprises a detection mechanism and a receiving control mechanism; the detection mechanism comprises a first power switch, a temperature detection circuit, a first wireless transmitting circuit and a first wireless receiving circuit; the first power switch, the temperature detection circuit, the first wireless transmitting circuit and the first wireless receiving circuit are arranged in the element box and are electrically connected; the temperature detection circuit is matched with a thermistor, and the temperature sensing surface of the thermistor is arranged outside the shell of the vehicle storage battery; the receiving control mechanism comprises a lithium storage battery, a second power switch, a charging socket, a second wireless receiving circuit and a second wireless transmitting circuit, and the lithium storage battery, the second power switch, the charging socket, the second wireless receiving circuit and the second wireless transmitting circuit are arranged in the shell and are electrically connected. The utility model discloses the battery breaks down, and the user can stop charging through the wireless transmitting circuit control vehicle battery of second very first time, has prevented the fault amplification, is applicable to any electric vehicle and uses.

Description

Battery internal heat production real-time monitoring device

Technical Field

The utility model relates to a battery corollary equipment technical field, especially a inside heat production real-time supervision device of battery.

Background

Electric vehicles including electric automobiles, electric bicycles, and the like are increasingly used due to environmental protection and energy conservation. An electric vehicle needs to charge its internal battery in order to ensure normal use. After the storage battery is used for a long time, or because of quality problems, the probability of damage, combustion and even explosion caused by overheating in charging is caused, and people cannot live beside a vehicle to charge in real time during charging, so that a charging power supply cannot be turned off at the first time when the storage battery breaks down, and certain potential safety hazards exist. In fact, when the storage battery is in failure, overheating is an important way for the failure to be shown, and therefore it is necessary to provide a monitoring device which can monitor the temperature of the storage battery in real time, and can turn off the full-charge power supply at the first time when the temperature is abnormal, so as to prevent the storage battery from being further damaged and generating serious secondary accidents.

SUMMERY OF THE UTILITY MODEL

In order to overcome the battery that current electric vehicle used because of not having the equipment of a real-time supervision battery temperature in charging, when the battery leads to charging in the time too hot because of various reasons, can not close charging source the very first time, can lead to the drawback of battery fault expansion, the utility model provides an under relevant mechanism and circuit combined action in the application, can the temperature of battery in the real-time supervision charges, and send temperature signal for the owner through wireless mode respectively, the owner can master the temperature of battery in charging in real time, and when the temperature surpassed standard in the battery appears, the user can be at the charging source of long-range shutoff battery of far away (such as in the family), effectively prevented the inside heat production real-time supervision device of a battery of battery fault expansion from this.

The utility model provides a technical scheme that its technical problem adopted is:

a real-time monitoring device for heat production in a battery is characterized by comprising a detection mechanism and a receiving control mechanism; the detection mechanism comprises a first power switch, a temperature detection circuit, a first wireless transmitting circuit and a first wireless receiving circuit; the first power switch, the temperature detection circuit, the first wireless transmitting circuit and the first wireless receiving circuit are arranged in the element box; the temperature detection circuit is provided with a plurality of same circuits, the temperature detection circuit is matched with a thermistor, the thermistor is arranged outside a shell of the vehicle storage battery, the vehicle storage battery is electrically connected with the plurality of temperature detection circuits, the first wireless transmitting circuit, a power supply input end of the first wireless receiving circuit and one end of the thermistor respectively, the other end of the thermistor is electrically connected with a signal input end of the plurality of temperature detection circuits, a signal output end of the plurality of temperature detection circuits is electrically connected with a plurality of signal input ends of the first wireless transmitting circuit respectively, a signal input end of the first wireless receiving circuit is electrically connected with two ends of a power supply output end of a vehicle storage battery charger respectively, and a signal output end of the first wireless receiving circuit is electrically connected with positive and negative poles of the vehicle storage; the receiving control mechanism comprises a lithium storage battery, a second power switch, a charging socket, a second wireless receiving circuit and a second wireless transmitting circuit, and the lithium storage battery, the second power switch, the charging socket, the second wireless receiving circuit and the second wireless transmitting circuit are arranged in the shell; and the lithium storage battery is electrically connected with the two power input ends of the second wireless receiving circuit and the second wireless transmitting circuit respectively.

Furthermore, the multiple temperature detection circuits of the detection mechanism are consistent in structure and respectively comprise an NPN triode, an adjustable resistor and a relay, the NPN triode, the adjustable resistor and the relay are electrically connected, one end of the adjustable resistor is connected with the base electrode of the NPN triode, and the collector electrode of the NPN triode is connected with the power supply input end of the negative electrode of the relay; the first wireless transmission circuit is a wireless transmission circuit module.

Furthermore, the first wireless receiving circuit of the detection mechanism comprises a wireless receiving circuit module, a resistor, an NPN triode and a relay, wherein a positive power input end of the wireless receiving circuit module is connected with a positive power input end of the relay, a negative power input end of the wireless receiving circuit module is connected with an emitter of the NPN triode, one output end of the wireless receiving circuit module is connected with one end of the resistor, the other end of the resistor is connected with a base of the NPN triode, and a collector of the NPN triode is connected with a negative power input end of the relay.

Furthermore, the second wireless transmitting circuit of the receiving control mechanism and the coding circuit inside the wireless receiving circuit module of the first wireless receiving circuit have the same code.

Furthermore, the second wireless receiving circuit of the receiving control mechanism comprises a wireless receiving circuit module, a resistor, a light emitting diode and a buzzer, the codes of the wireless receiving circuit module and the codes of the coding circuits in the first wireless transmitting circuit module are consistent, the negative power input end of the wireless receiving circuit module is connected with the negative power input ends of the three light emitting diodes and the buzzer, the four power output ends of the wireless receiving circuit module are connected with one end of the three resistors and the positive power input end of the buzzer, and the other end of the three resistors is connected with the positive power input end of the three light emitting diodes.

The utility model has the advantages that: the utility model discloses under thermistor and four ways temperature detection circuit combined action, can be in vehicle battery charges, normal atmospheric temperature, normal temperature, higher temperature, respectively through first wireless transmitting circuit transmission four ways different signals during the superhigh temperature, after the second wireless receiving circuit in user's side received the signal, can give out light of three emitting diode respectively and bee calling organ sound production suggestion user far away outer (for example at home), when the user hears bee calling organ sound production, just also the battery has probably appeared the trouble, can the very first time through second wireless transmitting circuit control vehicle battery stop charging, the fault amplification has been prevented. This novel be applicable to any electric vehicle and use, based on the aforesaid, this is novel to have good application prospect.

Drawings

The invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 and 3 are circuit diagrams of the present invention.

Fig. 4 is a block diagram illustrating the structure of the present invention.

Detailed Description

Fig. 1 and 4 show a real-time monitoring device for heat generation inside a battery, which comprises a detection mechanism and a receiving control mechanism; the detection mechanism comprises a first power switch 1, a temperature detection circuit 2, a first wireless transmitting circuit 3 and a first wireless receiving circuit 4; the first power switch 1, the temperature detection circuit 2, the first wireless transmitting circuit 3 and the first wireless receiving circuit 4 are arranged on a circuit board in an element box 5, and the element box 5 is arranged near a vehicle storage battery 6; the temperature detection circuit 2 has four identical circuits, the temperature detection circuit 2 is matched with a thermistor 21, and the temperature sensing surface of the thermistor 21 is bonded to the outer side end of the shell of the vehicle storage battery 6 by heat-resistant glue. The receiving control mechanism comprises a lithium storage battery 7, a second power switch 8, a charging socket 9, a second wireless receiving circuit 10 and a second wireless transmitting circuit 11, the lithium storage battery 7, the second power switch 8, the charging socket 9, the second wireless receiving circuit 10 and the second wireless transmitting circuit 11 are arranged on a circuit board in the shell 12, and a user of the shell 12 carries the receiving control mechanism with him.

As shown in fig. 1, 2, 3 and 4, the first power switch SK1 of the detection mechanism is a toggle power switch, and the handle of the first power switch SK1 is located outside the opening of the component box 5. The first path of temperature detection circuit comprises an NPN triode Q, an adjustable resistor RP and a relay K, wherein the NPN triode Q, the adjustable resistor RP and the relay K are connected through a circuit board in a wiring mode, one end of the adjustable resistor RP is connected with a base electrode of the NPN triode Q, and a collector electrode of the NPN triode Q is connected with a negative electrode power supply input end of the relay K. The second circuit of temperature detection circuit comprises an NPN triode Q1, an adjustable resistor RP1 and a relay K1, wherein the NPN triode Q1, the adjustable resistor RP1 and the relay K1 are connected through circuit board wiring, one end of the adjustable resistor RP1 is connected with the base electrode of the NPN triode Q1, and the collector electrode of the NPN triode Q1 is connected with the negative power supply input end of the relay K1. The third temperature detection circuit comprises an NPN triode Q2, an adjustable resistor RP2 and a relay K2, wherein the NPN triode Q2, the adjustable resistor RP2 and the relay K2 are connected through circuit board wiring, one end of the adjustable resistor R2P is connected with the base electrode of the NPN triode Q2, and the collector electrode of the NPN triode Q2 is connected with the negative power supply input end of the relay K2. The fourth temperature detection circuit comprises an NPN triode Q3, an adjustable resistor RP3 and a relay K3, wherein the NPN triode Q3, the adjustable resistor RP3 and the relay K3 are connected through circuit board wiring, one end of the adjustable resistor RP3 is connected with the base electrode of the NPN triode Q3, and the collector electrode of the NPN triode Q3 is connected with the negative power supply input end of the relay K3. The first wireless transmitting circuit A of the detection mechanism is a finished product of a wireless transmitting circuit module of model ZYOA72-1500, and is provided with four wireless transmitting keys S1, S2, S3 and S4 which can transmit four different wireless control signals when being pressed down respectively, and a coding circuit is arranged in the wireless transmitting circuit module A (the wireless signal transmitting distance is 1500 meters) 1, and the wireless transmitting circuit module A of the same model can be prevented from transmitting wireless signals to interfere with each other through coding of the coding circuit. The first wireless receiving circuit of the detection mechanism comprises a finished wireless receiving circuit module A1 of a type ZYOA72-1500, a resistor R3, an NPN triode Q4 and a relay K4 which are connected through circuit board wiring, the finished wireless receiving circuit module A1 is provided with four output ends, two power supply input ends and a pulse signal end (suspended), a coding circuit is arranged in the wireless receiving circuit module A1, and the wireless receiving circuit modules of the same type can be prevented from receiving wireless signals and interfering with each other through coding of the coding circuit; the pin 1 of the positive power supply input end of the wireless receiving circuit module A1 is connected with the positive power supply input end of the relay K4, the pin 3 of the negative power supply input end of the wireless receiving circuit module A1 is connected with the emitter of the NPN triode Q4, the pin 4 of the first output end of the wireless receiving circuit module A1 is connected with one end of a resistor R3, the other end of the resistor R3 is connected with the base of the NPN triode Q4, and the collector of the NPN triode Q4 is connected with the negative power supply input end of the relay K4.

As shown in fig. 1, 2, 3 and 4, the lithium storage battery G1 model of the receiving control mechanism is 12V/2Ah, the second power switch SK2 is a toggle power switch, the charging socket CZ is a coaxial power socket, and the jack of the charging socket CZ and the operating handle of the second power switch SK2 are located outside two openings at the front end of the shell 12; the second wireless transmitting circuit A3 is a wireless transmitting circuit module product of model ZYOA72-1500, and the coding circuit inside the second wireless transmitting circuit A3 and the wireless receiving circuit module A1 of the first wireless receiving circuit are consistent in coding. The second wireless receiving circuit of the receiving control mechanism comprises a wireless receiving circuit module finished product A2 of model ZYOA72-1500, resistors R4, R5, R6, light emitting diodes VL1, VL2, VL3 and a buzzer B, wherein the wireless receiving circuit module A2 is connected with a coding circuit inside the first wireless transmitting circuit A1 through circuit board wiring, a pin of a negative power supply input end 3 of the wireless receiving circuit module A2 is connected with three light emitting diodes VL1, VL2 and VL3 (the light emitting surfaces are positioned outside other three openings at the front end of the shell) and a negative power supply input end of the buzzer B, four power

supply output ends

4, 5, 6 and 7 pins of the wireless receiving circuit module A2 are connected with three positive power supply input ends of the resistors R4, R5 and R6 and the buzzer B, and the other ends of the three resistors R4, R5 and R8295 and the other end of the R6 are connected with three positive power supply input ends of the light emitting diodes VL1, VL2 and VL 3.

As shown in fig. 1, 2, 3, and 4, one end of first power switch SK1 is connected to the positive electrode of one battery G (12V) of the vehicle battery packs. The other end of the first power switch SK1, one of the batteries G negative pole and four paths of relays K, K1, K2 and K3 positive power input ends of the power input of the temperature detection circuit and NPN triodes Q, Q1, Q2 and Q3 emitter electrodes, the two ends of the power input of the first wireless transmitting circuit A VCC and GND, the two ends of the power input of the first wireless receiving circuit relay K4 positive power input end and the NPN triode Q4 emitter electrode are respectively connected through wires. The other end of the first power switch SK1 is connected with one end of the thermistor RT through a wire. The other end of the thermistor RT is connected with the other ends of the adjustable resistors RP, RP1, RP2 and RP3 at the signal input ends of the four-way temperature detection circuit through leads. The control contact ends and normally open contact ends of signal output end relays K, K1, K2 and K3 of the four-way temperature detection circuit are respectively connected with every two contacts of four keys S1, S2, S3 and S4 of the four-way signal input end of the first wireless transmitting circuit A through leads. Two control power input ends of a signal input end relay K4 of the first wireless receiving circuit are respectively connected with two ends of a power output of the vehicle storage battery charger A4 through leads. Two normally closed contact ends of a signal output end relay K4 of the first wireless receiving circuit are respectively connected with the positive and negative poles of a vehicle storage battery pack GN (formed by connecting a plurality of single storage batteries in series) through leads. The positive electrode of the lithium storage battery G1 is connected with one end of the second power switch SK2 through a lead. The other end of the second power switch SK2, the negative electrode of the lithium battery G1 and the pins 1 and 3 of the wireless receiving circuit module A2 at the two ends of the power input of the second wireless receiving circuit, and the VCC and GND at the two ends of the power input of the second wireless transmitting circuit A3 are respectively connected through wires. The two poles of the power supply of the lithium storage battery G1 and the two terminals of the charging socket CZ are respectively connected through leads (when the lithium storage battery G1 is out of power, an external power supply charger plug can be inserted into the charging socket CZ to charge the storage battery G1).

As shown in fig. 1, 2, 3 and 4, when the vehicle is charged by the user, the power switches SK1 and SK2 are turned on, so that the temperature detection circuit, the first wireless transmission circuit, the first wireless receiving circuit, the second wireless transmission circuit and the second wireless receiving circuit are in the power-on working state. After the power switch SK1 is turned on, the positive power supply output by one battery G of the batteries on the vehicle enters one end of the thermistor RT, after the thermistor RT is electrified, the temperature sensing surface of the thermistor RT is tightly attached to the shell of the vehicle battery, so that the temperature generated by the battery during charging can act on the temperature sensing surface of the thermistor RT, the voltage output to the other ends of the adjustable resistors RP, RP1, RP2 and RP3 is relatively high when the resistance value is low, and the voltage output to the other ends of the adjustable resistors RP, RP1, RP2 and RP3 is relatively low when the resistance value is high. In the first path of temperature detection circuit, when a vehicle storage battery GN is charged and is not recharged due to power failure and the like, the lowest temperature of a storage battery shell is close to the ambient temperature (such as 28 ℃), the resistance of a thermistor RT is the highest, a 12V power supply is subjected to voltage reduction and current limitation by the thermistor RT and an adjustable resistor RP and then enters the base of an NPN triode Q to be just higher than 0.7V (the resistance values of the adjustable resistors RP1, RP2 and RP3 are higher than that of RP, so that the NPN triodes Q1, Q2 and Q3 cannot be conducted), the NPN triode Q conducts a collector to output a low level and enters the negative power supply input end of a relay K, and then the relay K is electrified to attract the control contact end and the normally; because two contacts under the first key S1 of the wireless transmitting circuit A are respectively connected with the relay K control contact end and the normally open contact end, the wireless transmitting circuit A can transmit a first path of wireless closing signal at the moment. In the second path of temperature detection circuit, when the vehicle storage battery GN is charged and the storage battery is not in fault, the temperature of the storage battery shell is slightly higher than the ambient temperature (for example, the temperature is higher than 28 ℃ to 32 ℃), the resistance of the thermistor RT is higher, a 12V power supply is subjected to voltage reduction and current limitation by the thermistor RT and the adjustable resistor RP1 and then enters the base of the NPN triode Q1 and is just higher than 0.7V (the resistance values of the adjustable resistors RP2 and RP3 are higher than that of RP1, so that the NPN triodes Q2 and Q3 cannot be conducted), the NPN 1 conducts a collector to output a low level and enters the negative power supply input end of the relay K1, and then the relay K1 is electrified to attract the control contact end and the normally; because the two lower contacts of the second button S2 of the wireless transmitting circuit A are respectively connected with the control contact end and the normally open contact end of the relay K1, the wireless transmitting circuit A can transmit a second wireless closing signal at the moment. In the third temperature detection circuit, when the vehicle storage battery GN is charged and the storage battery does not have a fault, but the performance is poor, the internal resistance is high, the temperature is high (for example, 32 ℃ to 40 ℃), the resistance of the thermistor RT is low, a 12V power supply is subjected to voltage reduction and current limitation by the thermistor RT and the adjustable resistor RP2, then the voltage is reduced and current is limited, the voltage is fed into the base of an NPN triode Q2 and is just higher than 0.7V (the resistance of the adjustable resistor RP3 is higher than that of RP2, so the NPN triode Q3 cannot be conducted), the NPN triode Q2 conducts a collector to output low level and then is fed into the negative power supply input end of the relay K2, and then the relay K; because the lower two contacts of the third button S3 of the wireless transmitting circuit A are respectively connected with the control contact end and the normally open contact end of the relay K2, the wireless transmitting circuit A can transmit a third wireless closing signal at the moment. In the fourth temperature detection circuit, when the storage battery GN of the vehicle is charged and has a fault, the temperature exceeds 45 ℃ (40 ℃ to 45 ℃ and exceeds 45 ℃), the resistance of the thermistor RT is the lowest, a 12V power supply is subjected to voltage reduction and current limitation by the thermistor RT and the adjustable resistor RP3 and then enters the base of the NPN triode Q3 and is just higher than 0.7V, the NPN triode Q3 is conducted, the collector outputs a low level and enters the negative power supply input end of the relay K3, and then the relay K3 is electrified to attract the control contact end and the normally open contact end of the relay K3 to be closed; because the lower two contacts of the fourth key S4 of the wireless transmitting circuit A are respectively connected with the control contact end and the normally open contact end of the relay K3, the wireless transmitting circuit A can transmit a fourth path of wireless closing signals at the moment. Through the aforesaid, this neotype wireless transmitting circuit can launch the wireless closed signal of four ways difference in real time according to its charging temperature when vehicle battery charges.

As shown in fig. 1, 2, 3, and 4, when the vehicle battery GN is charged, the wireless transmitting circuit a transmits four different wireless close signals in real time according to the charging temperature of the vehicle battery, and then the wireless receiving circuit module a2 around the user can receive one or two, three, and four wireless close signals. After the wireless receiving circuit module A2 receives the first wireless close signal, the 4 feet of the wireless receiving circuit module A2 will output high level to be reduced voltage and limited current through the resistor R4 to enter the anode of the light emitting diode VL1, then the light emitting diode VL1 gets electricity and gives out light to prompt the user that the vehicle storage battery is just charged, after the charging time is longer, the charger A4 which has the probability of power failure in the charging area or charging the storage battery GN (the temperature of the normal charging shell is about more than 30 degrees) is damaged, and the user can check the field according to the requirement. When the second wireless closing signal is received, the 5 pin of the wireless receiving circuit module a2 outputs a high level, and the high level is reduced by the resistor R5 and limited by current and enters the anode of the light emitting diode VL2, so that the light emitting diode VL2 is powered to emit light to prompt the user that the vehicle battery is normally charged (meanwhile, the light emitting diode VL1 also emits light). After receiving the third wireless closing signal, the pin 6 of the wireless receiving circuit module a2 will output a high level, which is then stepped down by the resistor R6 and current-limited to enter the anode of the light emitting diode VL3, so that the light emitting diode VL3 is powered on to light up to prompt the user that the vehicle battery is normally charged, but the battery has a higher heating temperature and poor performance (meanwhile, the light emitting diodes VL1 and VL2 will also light up). After the fourth wireless closing signal is received, the 7 th pin of the wireless receiving circuit module a2 outputs a high level to enter the positive power input end of the buzzer B, so that the buzzer B is powered to make a sound prompt sound to prompt a user that the temperature of the vehicle storage battery is too high and the vehicle storage battery GN is in fault, and then the charging is turned off in time (meanwhile, the light emitting diodes VL1, VL2 and VL3 also emit light).

As shown in fig. 1, 2, 3, and 4, after the vehicle battery is charged and malfunctions, and the buzzer B sounds, the user can press the first key of the wireless transmitting circuit module A3 at home, so the wireless transmitting circuit module A3 transmits the first wireless close signal, the wireless receiving circuit module a1 receives the first wireless close signal and then 4 pins of the wireless receiving circuit module a can output high level, the high level is reduced voltage and limited current by the resistor R3 to enter the base of the NPN triode Q4, so the NPN triode Q4 turns on the collector to output low level to enter the negative power input end of the relay K4, the relay K4 is powered on to pull in two control power input ends and two normally closed contact ends thereof. Because two control power supply input ends of the relay K4 are connected with two power supply output ends of the vehicle storage battery charger A4 (actually, the two control power supply input ends of the relay K4 can be connected with a vehicle charging socket, and two normally closed contact ends of the relay K4 are connected with two poles of the vehicle storage battery GN), and two normally closed contact ends of the relay K4 are respectively connected with two poles of the vehicle storage battery GN, the vehicle storage battery G stops charging at the moment, and serious secondary accidents caused by continuous charging after the vehicle storage battery is in failure are prevented.

Fig. 1, 2, 3, 4, act through all above-mentioned circuits, the utility model discloses under thermistor and four ways temperature detection circuit combined action, can be in vehicle storage battery charges, normal atmospheric temperature, normal temperature, higher temperature, respectively through the different signals of first wireless transmission circuit transmission four ways during the superhigh temperature, second wireless receiving circuit in user's side receives behind the signal, can be luminous and the bee calling organ sound production suggestion user far away (for example at home) through three emitting diode respectively, when the user hears bee calling organ sound production, also be exactly that the battery has probably appeared the trouble, can the very first time through the wireless transmitting circuit control vehicle storage battery of second stop charging, the fault amplification has been prevented.

In fig. 1, 2, 3 and 4, the light emitting diodes VL1, VL2 and VL3 are red light emitting diodes; the resistances of the resistors R4, R5 and R6 are 1.8K; the resistance R3 is 1K; the models of the NPN triode Q, Q1, Q2, Q3 and Q4 are 9013; relays K, K1, K2, K3, K4 are DC12V relays; the thermistor is a negative temperature coefficient thermistor of a model NTC 103D; the specifications of the adjustable resistors RP, RP1, RP2 and RP3 are 8M; the buzzer B is a small active continuous sound buzzer finished product with the model SF-3-12V. Before the novel adjustable resistor RP, RP1, RP2 and RP3 are required to be determined, during determination, the thermistor RT is close to the outer side end (such as the outer side of a PTC heating sheet capable of adjusting the temperature) of a temperature-adjustable heat source, then the adjusting handles of the adjustable resistors RP, RP1, RP2 and RP3 are respectively adjusted at different temperatures, so that the relays K, K1, K2, K3 and K4 are respectively attracted, the actual requirements are met (for example, the relay K is electrified to attract when the resistance value of the adjustable resistor RP is adjusted to be 28 ℃, the relay K1 is electrified to attract when the resistance value of the adjustable resistor RP1 is adjusted to be 32 ℃), the relay K2 is electrified to attract when the resistance value of the adjustable resistor RP2 is adjusted to be 40 ℃, the relay K3 is electrified to attract when the resistance value of the adjustable resistor RP3 is adjusted to be 45 ℃), after adjustment, the resistance values of the adjustable resistors, RP1, RP2 and RP3 are respectively measured, and the subsequent batch production does not need to be determined again, and the adjustable resistor, The resistance values of RP1, RP2, RP3 may be adjusted to the right or replaced by fixed resistors of the same resistance value.

The basic principles and essential features of the invention and the advantages of the invention have been shown and described above, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but rather can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, the embodiments do not include only one independent technical solution, and such description is only for clarity, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A real-time monitoring device for heat production in a battery is characterized by comprising a detection mechanism and a receiving control mechanism; the detection mechanism comprises a first power switch, a temperature detection circuit, a first wireless transmitting circuit and a first wireless receiving circuit; the first power switch, the temperature detection circuit, the first wireless transmitting circuit and the first wireless receiving circuit are arranged in the element box; the temperature detection circuit is provided with a plurality of same circuits, the temperature detection circuit is matched with a thermistor, the thermistor is arranged outside a shell of the vehicle storage battery, the vehicle storage battery is electrically connected with the plurality of temperature detection circuits, the first wireless transmitting circuit, a power supply input end of the first wireless receiving circuit and one end of the thermistor respectively, the other end of the thermistor is electrically connected with a signal input end of the plurality of temperature detection circuits, a signal output end of the plurality of temperature detection circuits is electrically connected with a plurality of signal input ends of the first wireless transmitting circuit respectively, a signal input end of the first wireless receiving circuit is electrically connected with two ends of a power supply output end of a vehicle storage battery charger respectively, and a signal output end of the first wireless receiving circuit is electrically connected with positive and negative poles of the vehicle storage; the receiving control mechanism comprises a lithium storage battery, a second power switch, a charging socket, a second wireless receiving circuit and a second wireless transmitting circuit, and the lithium storage battery, the second power switch, the charging socket, the second wireless receiving circuit and the second wireless transmitting circuit are arranged in the shell; and the lithium storage battery is electrically connected with the two power input ends of the second wireless receiving circuit and the second wireless transmitting circuit respectively.

2. The device according to claim 1, wherein the multiple temperature detection circuits of the detection mechanism are identical in structure and each comprises an NPN transistor, an adjustable resistor and a relay, the NPN transistor, the adjustable resistor and the relay are electrically connected, one end of the adjustable resistor is connected to the base of the NPN transistor, and the collector of the NPN transistor is connected to the power input end of the negative electrode of the relay; the first wireless transmission circuit is a wireless transmission circuit module.

3. The device according to claim 1, wherein the first wireless receiving circuit of the detecting mechanism comprises a wireless receiving circuit module, a resistor, an NPN transistor, and a relay, wherein a positive power input of the wireless receiving circuit module is connected to a positive power input of the relay, a negative power input of the wireless receiving circuit module is connected to an emitter of the NPN transistor, one output of the wireless receiving circuit module is connected to one end of the resistor, the other end of the resistor is connected to a base of the NPN transistor, and a collector of the NPN transistor is connected to a negative power input of the relay.

4. The device of claim 3, wherein the second wireless transmitting circuit of the receiving control mechanism and the coding circuit inside the wireless receiving circuit module of the first wireless receiving circuit are coded in the same way.

5. The device for real-time monitoring of internal heat generation of battery according to claim 2, wherein the second wireless receiving circuit of the receiving control mechanism comprises a wireless receiving circuit module, a resistor, a light emitting diode, and a buzzer, the wireless receiving circuit module is encoded by the encoding circuit in the first wireless transmitting circuit, the negative power input terminal of the wireless receiving circuit module is connected to the negative power input terminals of the three light emitting diodes and the buzzer, the four power output terminals of the wireless receiving circuit module are connected to one end of the three resistors and the positive power input terminal of the buzzer, and the other end of the three resistors is connected to the positive power input terminal of the three light emitting diodes.