CN215178248U - Wireless temperature measurement early warning system - Google Patents
Wireless temperature measurement early warning system Download PDFInfo
- Publication number
- CN215178248U CN215178248U CN202121072623.1U CN202121072623U CN215178248U CN 215178248 U CN215178248 U CN 215178248U CN 202121072623 U CN202121072623 U CN 202121072623U CN 215178248 U CN215178248 U CN 215178248U
- Authority
- CN
- China
- Prior art keywords
- temperature
- wireless
- early warning
- capacitor
- display control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model relates to a wireless temperature measurement early warning system, the system includes temperature transmission module and screen display control module, the temperature transmission module reports the temperature data of the outside key temperature node of a plurality of battery package that detects and reports to the screen display control module who corresponds fixed frequency channel and carries out temperature display, can monitor the temperature change of key node in real time developments, the temperature rise rate is real-time analytic, and then realize dynamic measurement and the high temperature early warning of the outside key point temperature of power battery package, can be with lower cost, the security performance of power battery system is guaranteed in more efficient measure. The system solves the problem of large electromagnetic interference of external nodes of the battery through the arrangement of a wire cable of the temperature sensor with the mesh-shaped shielding wire and an EMC anti-interference circuit, can accurately acquire temperature data, and is stable and reliable in wireless communication data transmission. The screen display control module and the temperature transmission module adopt the measures of carrying out data interaction and the like by setting fixed channels point to point, thereby further optimizing the anti-electromagnetic interference effect.
Description
Technical Field
The utility model relates to a new forms of energy battery package or battery box temperature measurement field, in particular to new forms of energy power battery spare part (non-electric core) wireless temperature measurement early warning system.
Background
New energy automobile obtains more and more popularization and application in recent years, and the battery is the key subassembly of new energy automobile, has decisive effect to new energy automobile's performance and use. Due to the influence of various factors, the new energy battery is easy to damage in the charging and discharging process, the temperature of the battery is a key parameter for judging whether the battery can be normally used, and when the temperature of the battery exceeds a certain value, the battery is often damaged irreversibly. In the current industry, the method of arranging temperature sensors at multiple points (single-point temperature test) is widely used for detecting the internal temperature of the power battery, and the temperature of key points outside the battery is not mainly detected. Chinese patent CN106569142A discloses a thermal runaway early warning system for power lithium ion batteries, which comprises a temperature detection unit, a microprocessor and an alarm, and the system can make early warning and inform users to process timely according to the monitoring result. Chinese patent CN211863634U discloses a battery management and automatic fire extinguishing system, which comprises a battery management module electrically connected with a data processing and control unit, a detection controller, etc., and can monitor the temperature data of the battery in real time and realize the early warning in stages, and send out an audible and visual alarm signal to the outside in the thermal runaway germination state to prompt people to perform the interference processing as soon as possible. The above-mentioned technologies are all monitoring the temperature inside the battery, and what is adopted in the industry at present is a multipoint arrangement temperature sensor (single-point temperature test) method to detect the internal temperature of the power battery, but neglects the temperature condition of the external key node of the battery. However, for the external key node of the battery box (pack), because the current at the external key node is very large, if the contact at the key node is poor in contact, the external key node generates abnormal heat and generates huge high heat, so that potential safety hazards are generated, and the key contact is burnt out. However, generally, the BMS battery management system monitors only the temperature inside the battery, and a key node outside the battery box (pack) is a dead zone of the BMS system. Further, compared with the method that the BMS battery management system is adopted for temperature monitoring inside the battery, the method for monitoring the temperature of the external key nodes of the battery is an efficient measure for early warning and avoiding disasters for the external key nodes of the battery which are easy to cause safety accidents, and device failure and safety accidents can be avoided to the greatest extent at lower cost. Although the potential safety hazard can be effectively reduced by monitoring the temperature of the external key node of the battery, the practical application of the temperature monitoring device is difficult, and the reason for the phenomenon is that the electromagnetic interference of the external key node of the battery is large, so that the temperature is difficult to accurately acquire, and the data transmission is easy to interfere.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is big to battery package outside node temperature measurement electromagnetic interference, and then be difficult to accurate acquisition temperature and data transmission easily receives the problem of interference, provides a wireless temperature measurement early warning system that monitors is carried out to the temperature of battery package (case) outside key node.
The utility model provides a following technical scheme:
the utility model provides a wireless temperature measurement early warning system which characterized in that: the system comprises a plurality of temperature transmission modules and a screen display control module, wherein the temperature transmission modules are connected with a temperature sensor and a thermocouple temperature collector and are used for collecting temperature data of external key nodes of the battery pack and reporting the temperature data of the temperature nodes to the screen display control module corresponding to a fixed frequency band in a wireless communication mode to display the temperature; the temperature transmission module and the screen display control module are both provided with an MCU (microprogrammed control unit) core processing unit, and the MCU core processing unit is used for storing and transmitting temperature data; each temperature transmission module is provided with a plurality of temperature sensors through leads, and the number of the temperature sensors corresponds to the number of external key temperature measurement nodes of a single battery pack; the conducting wire adopts a mesh shielding wire, and the mesh shielding wire is connected with the power ground of the PCBA board inside the product; the power input ends of the temperature transmission module and the screen display control module adopt EMC anti-interference circuits to solve the problems of matching and electromagnetic compatibility of the circuit and the MCU core processing unit and the wireless module.
Preferably, the EMC anti-interference circuit comprises capacitors C1, C2, C3 and C4, an inverse diode D1, an inductor LCM1, capacitors C5 and C6, a voltage dependent resistor MOV1 and a FUSE1, capacitors C1 and C2 are connected in parallel to terminals a and B, and terminal a is connected to a direct current power supply, terminal B is connected to ground, capacitor C3 is connected in parallel to an input terminal of inductor LCM1, and one end of capacitor C3 is connected to an anode of inverse diode D1, the other end of capacitor C3 is connected to ground, the other end of capacitor C3 is further connected to the chassis after being connected in series with capacitor C4, a cathode of the inverse diode D1 is connected to point a, capacitors C5, C6 and MOV1 are connected in parallel to an output terminal of the inductor LCM1, and one end of the voltage dependent resistor MOV1 is connected to the FUSE1 in series.
Preferably, the MCU core processing unit of the temperature transmission module is connected with the temperature sensor, the thermocouple temperature collector, the system power supply part, the wireless communication part and the state display part, and a decoupling circuit, a reset circuit, an LED indicating circuit and a JTAG programming download circuit are arranged in a module circuit.
Preferably, the MCU core processing unit of screen display control module passes through CAN communication part and is connected and mutual data with the driving computer, screen display control module includes two way relay output, for the fault relay output that is used for controlling the trouble pilot lamp all the way, another way is the alarm relay output of control audible-visual annunciator, and core processing unit respectively with above-mentioned two way relay output connection, be used for control fault relay with alarm relay's switching on and turn-off.
Preferably, an MCU core processing unit of the screen display control module is connected with a system power supply part, a state display part, a wireless communication part, a cab OLED display screen part, a film key part and two paths of standby outputs; the on-screen display control module circuit is provided with a decoupling circuit, a reset circuit, an LED indicating circuit and a JTAG programming downloading circuit.
Preferably, each temperature transmission module is provided with 4 temperature sensors in a wired mode, the 4 temperature sensors correspond to 4 key temperature measurement nodes of a single battery pack, and the 4 temperature sensors are respectively installed at an anode temperature measurement point, a cathode temperature measurement point, a left side series copper bar temperature measurement point and a right side series copper bar temperature measurement point.
Preferably, the MCU core processing unit of each temperature transmission module is connected to the 4 DS18B20 temperature sensors through the 4 DS18B20 temperature acquisition circuits, and the core processing unit is connected to the 4 PT100 thermocouple temperature acquisition devices through the 4 PT100 thermocouple temperature acquisition circuits.
Preferably, the connection modes of the system power supply part and the module of the temperature transmission module and the screen display control module are both that the +24VDC power supply input provided by the whole vehicle low-voltage power supply system is connected with the module to-be-powered component through the EMC anti-interference circuit, the +5VDC conversion circuit and the +3.3VDC voltage stabilizing circuit in sequence.
Preferably, the wireless transmission adopts a 433M wireless module, the working frequency of a data transmitting module of the module is 315M, a sound meter resonator SAW is adopted for frequency stabilization, the antenna is a built-in spring antenna, and the shell is a nonmetallic plastic shell.
Preferably, the conducting voltage of the varistor MOV1 is set to be 48V, the model of the FUSE FUSE1 is F0.5/125V, the model of the capacitor C1 is 470 muF/35V, the model of the capacitor C2 is 1 muF.105V, the model of the capacitor C3 is 4.7 muF/50V, the model of the capacitor C4 is 1nF/3KV, the model of the capacitor C5 is 4.7 muF/50V, the model of the capacitor C6 is 330 muF/50V, and the model of the inductor LCM1 is 3.5mH or 12 muH.
The beneficial effects of the utility model reside in that:
(1) through laying a plurality of temperature sensor and thermocouple temperature collector, can monitor the temperature of the outside key node of battery package, compare in adopting BMS battery management system to carry out the measure of temperature monitoring to the battery is inside, can guarantee power battery system's security performance with lower cost, more efficient measure, have good practical value and wide application prospect.
(2) The system can realize the detection of the temperature of the key easy-to-generate point of the power battery of the pure electric bus, remotely transmit the temperature of the temperature measuring point to the cab in a wireless transmission mode, and simultaneously analyze temperature data in real time, thereby realizing the dynamic measurement and high-temperature early warning of the temperature of the key point of the power battery.
(3) The temperature transmission module is connected with a lead of the temperature sensor by a mesh shielding wire, and the shielding wire is connected with a power ground of the PCBA board in the product; the power input end adopts an EMC anti-interference circuit to solve the problem that a circuit is matched with the MCU and the wireless module. Through the setting of netted shielded wire cable and EMC anti-interference circuit, solved the big problem of battery external node electromagnetic interference, can accurate acquisition temperature data, wireless communication data transmission is reliable and stable. The screen display control module and the temperature transmission module adopt the measures of carrying out data interaction and the like by setting fixed channels point to point, thereby further optimizing the anti-electromagnetic interference effect of the system. The problem of system electromagnetic interference is effectively solved through the measures, the monitoring and early warning of the temperature of the external key node of the battery pack are realized, and the precision of data acquisition and the communication stability are improved.
Description of the drawings:
FIG. 1 is a diagram of a wireless temperature measurement early warning system;
FIG. 2 is a diagram of a system topology;
FIG. 3 is a schematic structural diagram of a temperature transmission module;
FIG. 4 is a schematic view of the temperature sensor mounting location;
FIG. 5 is a schematic diagram of a screen display control module;
FIG. 6 is a schematic diagram of an EMC immunity circuit.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter is limited to the following embodiments, and all the technologies realized based on the present invention are within the scope of the present invention.
The power battery wireless temperature measurement early warning system comprises a temperature transmission module and a screen display control module, wherein the temperature transmission module is connected with a temperature sensor and a thermocouple temperature collector and used for collecting temperature data of external key nodes of a battery pack, and then reporting the temperature data of a plurality of temperature nodes to the screen display control module corresponding to a fixed frequency band in a wireless communication mode for temperature display, so that the temperature change and the temperature rise rate of the key nodes can be dynamically monitored in real time, early warning analysis is carried out, when a set threshold value is exceeded, a fault indicator lamp is driven, and an audible and visual alarm is made to give an alarm. In addition, the screen display control module is also connected with a traveling crane computer. The wireless temperature measurement early warning system can realize the temperature detection of key hot spots of the power battery of the pure electric bus and remotely transmit the temperature of the temperature measurement points to the cab in a wireless transmission mode; and meanwhile, the temperature data is analyzed in real time, and then dynamic measurement and high-temperature early warning of the temperature of the key point of the power battery are realized. The corresponding analysis process: and after the threshold value is set, comparing the temperature data with the threshold value, triggering an early warning signal when the temperature data is greater than the threshold value, and giving an alarm by the system, otherwise, not triggering the early warning signal. The comparison of the data size by the threshold value can be realized by a simple program or a comparison circuit, is the prior art, and does not provide distinguishing technical characteristics for realizing the beneficial effects.
The number of the temperature transmission modules corresponds to the number of the battery packs of the whole vehicle, and in this embodiment, the whole vehicle is provided with 10 power battery packs, and 10 temperature transmission modules are correspondingly arranged as an example. Each temperature transmission module adopts a 1 torr 4 mode, namely 1 module is provided with 4 temperature sensors in a wired mode, the number of the temperature sensors corresponds to the number of key temperature measuring nodes outside a single battery pack, and the 4 temperature sensors correspond to key temperature measuring nodes at 4 positions of the single battery pack. As shown in fig. 3, the key temperature measurement nodes of a single battery pack are respectively located at the positive electrode, the negative electrode, the left side serial copper bar and the right side serial copper bar, and the 4-way temperature sensors are respectively installed at the positive electrode temperature measurement point, the negative electrode temperature measurement point, the left side serial copper bar temperature measurement point and the right side serial copper bar temperature measurement point. The number of the temperature transmission modules can be adapted, for example, the number can be expanded to 20 temperature transmission modules and 80 temperature measurement nodes.
The temperature transmission module can collect temperature data of the battery pack in real time, and reports the local temperature data to the screen display control module corresponding to the fixed frequency band in a wireless communication mode to display the temperature. The temperature transmission module is provided with an MCU core processing unit, and the MCU model is STM32F103C8T 6. The core processing unit is respectively connected with the 4 paths of DS18B20 temperature sensors through the 4 paths of DS18B20 temperature acquisition circuits, and simultaneously, the core processing unit is respectively connected with the 4 paths of PT100 thermocouple temperature acquisition devices through the 4 paths of PT100 thermocouple temperature acquisition circuits. And the core processing unit is also connected with a system power supply part, a wireless communication part and a state display part, and a decoupling circuit, a reset circuit, an LED indicating circuit and a JTAG programming downloading circuit are arranged in the module circuit. The system power supply is provided by a low-voltage power supply system of the whole vehicle, and the power supply range is 18-32V. In the embodiment, after the +24VDC power supply is input, the power supply is connected with a component to be supplied through the EMC anti-interference circuit, the +5VDC conversion circuit and the +3.3VDC voltage stabilizing circuit in sequence to realize power supply and minimize electromagnetic interference.
The screen display control module is responsible for receiving temperature data uploaded by a plurality of temperature transmission modules corresponding to fixed frequency bands, displays local temperature data through the OLED display screen of the cab, can dynamically monitor temperature change and temperature rise rate of key nodes of the battery pack in real time, carries out early warning analysis, and drives the fault indicator lamp to send out a signal and enables the buzzer to give an alarm when a set threshold value is exceeded. The screen display control module is provided with an MCU (micro controller unit) core processing unit, the MCU model is STM32F103C8T6, and the core processing unit is connected with a running computer through a CAN (controller area network) communication part and interacts data. The screen display control module comprises two paths of relay outputs, one path is the fault relay output for controlling the fault indicator lamp, the other path is the alarm relay output for controlling the audible and visual alarm, and the core processing unit is respectively connected with the two paths of relay outputs, so that the core processing unit can control the fault indicator lamp and the audible and visual alarm according to real-time monitoring data. In addition, a core processing unit of the screen display control module is also connected with a system power supply part, a state display part, a wireless communication part, a cab OLED display screen part, a film key part and two paths of standby outputs. The on-screen display control module circuit is also provided with a decoupling circuit, a reset circuit, an LED indicating circuit and a JTAG programming downloading circuit. Similarly, in the embodiment, after the +24VDC power input is provided by the whole vehicle low-voltage power supply system, the power is supplied and the electromagnetic interference is minimized by connecting the EMC anti-interference circuit, the +5VDC conversion circuit and the +3.3VDC voltage stabilizing circuit with the module component to be supplied.
The temperature transmission module and the screen display control module are used for pertinently solving the problem of large electromagnetic interference of external nodes of the battery, and the specific mode for solving the electromagnetic interference is as follows: the wire cable connected with the temperature sensor adopts a mesh shielding wire structure, the shielding wire is connected with a power ground of the PCBA board in the product, the mesh shielding wire is formed by wrapping a power wire and a signal wire together by adopting a metal mesh braid for power and data transmission, the braid adopts red copper, the influence of an external electromagnetic field on a power supply or a communication circuit can be reduced, the circuit can be prevented from radiating electromagnetic energy outwards, the shielding layer of the mesh shielding wire is connected into the power ground of the PCBA board, and an external interference signal can be guided into the ground by the mesh shielding wire; the power input end adopts an EMC anti-interference circuit to solve the problems of matching of the circuit with the MCU and the wireless module and electromagnetic compatibility; the screen display control module and the temperature transmission module adopt point-to-multipoint fixed channels for data interaction; the wireless transmission adopts a 433M wireless module, the working frequency of a data transmitting module of the module is 315M, a sound meter resonator SAW is adopted for frequency stabilization, the frequency stability is extremely high, and when the environmental temperature is changed between-25 to +85 ℃, the frequency drift is only 3 ppm/degree; the antenna adopts a built-in spring antenna; the shell is a non-metal plastic shell. These measures achieve stability and reliability of data transmission.
The EMC anti-interference circuit is shown in FIG. 6 and comprises capacitors C1, C2, C3 and C4, an inverse diode D1, an inductor LCM1, capacitors C5 and C6, a voltage dependent resistor MOV1 and a FUSE FUSE1, capacitors C1 and C2 are connected in parallel to ends A and B, the end A is connected with a direct current power supply, the end B is grounded, a capacitor C3 is connected in parallel to an input end of the inductor LCM1, one end of a capacitor C3 is connected with an anode of the inverse diode D1, the other end of a capacitor C3 is grounded, the other end of the capacitor C3 is further connected with a capacitor C4 in series and then connected with a chassis, a cathode of the inverse diode D1 is connected to a point A, capacitors C5, C6 and a voltage dependent resistor MOV1 are connected in parallel to an output end of the inductor LCM1, and one end of the voltage dependent resistor MOV1 is connected with the FUSE FUSE1 in series. Preferably, the DC power supply is 24V, the on voltage of the varistor MOV1 is set to 48V, and the FUSE FUSE1 is F0.5/125V. Preferably, the type of the capacitor C1 is 470 muF/35V, the type of the capacitor C2 is 1 muF.105V, the type of the capacitor C3 is 4.7 muF/50V, the type of the capacitor C4 is 1nF/3KV, the type of the capacitor C5 is 4.7 muF/50V, the type of the capacitor C6 is 330 muF/50V, and the type of the inductor LCM1 is common-mode inductor 3.5mH or single-mode inductor 12 muH.
In this embodiment, the temperature value is sampled every 1s, the display screen updates the acquired data in real time, and the temperature data is transmitted to the CAN bus through a message. The page data of the OLED display screen displays the information of 10 temperature transmission modules and 40 temperature measurement nodes, the information is displayed in a rolling mode, and each page displays the data of 2 temperature transmission modules and 8 temperature measurement nodes. The system may set a product ID and a temperature alarm threshold. The fault indicating lamp is yellow and is used for indicating system faults, and the indicating lamp flickers when any temperature measuring node is disconnected, short-circuited and broken and other temperature measuring early warning system faults occur. The audible and visual alarm is used for indicating the temperature abnormality of the battery pack, when the temperature acquisition value exceeds a set value or the temperature rise rate exceeds a set value, the built-in buzzer of the screen display control module gives an alarm intermittently, and the LED indicator lamp of the synchronous high-brightness panel flickers intermittently. The screen display control module reserves two relay output ports, the ports reserve relay control negative signals, and a relay node positive power supply is provided by the screen display. A 2.42 inch LED screen is preferably used.
All of the features disclosed above, or all of the steps in any method or process disclosed, may be combined in any combination, except features and/or steps that are mutually exclusive.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a wireless temperature measurement early warning system which characterized in that: the system comprises a plurality of temperature transmission modules and a screen display control module, wherein the temperature transmission modules are connected with a temperature sensor and a thermocouple temperature collector and are used for collecting temperature data of external key nodes of the battery pack and reporting the temperature data of the temperature nodes to the screen display control module corresponding to a fixed frequency band in a wireless transmission mode to display the temperature; the temperature transmission module and the screen display control module are both provided with an MCU (microprogrammed control unit) core processing unit, and the MCU core processing unit is used for storing and transmitting temperature data; each temperature transmission module is provided with a plurality of temperature sensors through leads, and the number of the temperature sensors corresponds to the number of external key temperature measurement nodes of a single battery pack; the conducting wire adopts a mesh shielding wire, and the mesh shielding wire is connected with the power ground of the PCBA board inside the product; and the power input ends of the temperature transmission module and the screen display control module adopt EMC anti-interference circuits.
2. The wireless temperature measurement early warning system of claim 1, wherein: the EMC anti-interference circuit comprises capacitors C1, C2, C3 and C4, an inverse diode D1, an inductor LCM1, capacitors C5 and C6, a piezoresistor MOV1 and a FUSE FUSE1, wherein the capacitors C1 and C2 are connected in parallel to ends A and B, the end A is connected with a direct current power supply, the end B is grounded, the capacitor C3 is connected in parallel to an input end of the inductor LCM1, one end of the capacitor C3 is connected with the positive electrode of the inverse diode D1, the other end of the capacitor C3 is grounded, the other end of the capacitor C3 is further connected with a capacitor C4 in series and then connected with a cabinet, the negative electrode of the inverse diode D1 is connected to the point A, the capacitors C5 and C6 and a piezoresistor MOV1 are connected in parallel to the output end of the inductor LCM1, and one end of the piezoresistor MOV1 is connected with the FUSE FUSE1 in series.
3. The wireless temperature measurement early warning system of claim 1, wherein: and the MCU core processing unit of the temperature transmission module is connected with the temperature sensor, the thermocouple temperature collector, the system power supply part, the wireless communication part and the state display part.
4. The wireless temperature measurement early warning system of claim 3, wherein: the MCU core processing unit of screen display control module passes through CAN communication part and is connected and mutual data with the driving computer, screen display control module includes two way relay output, and for the fault relay output that is used for controlling the trouble pilot lamp all the way, another way is the alarm relay output of control audible-visual annunciator, and core processing unit is connected with above-mentioned two way relay output respectively, is used for control fault relay with alarm relay's switching on and turn-off.
5. The wireless temperature measurement early warning system of claim 4, wherein: and an MCU core processing unit of the screen display control module is connected with a system power supply part, a state display part, a wireless communication part, a cab OLED display screen part, a film key part and two paths of standby outputs.
6. The wireless thermometric warning system according to any one of claims 1-5, wherein: each temperature transmission module is provided with 4 temperature sensors in a wired mode, the 4 temperature sensors correspond to 4 key temperature measuring nodes of a single battery pack, and the 4 temperature sensors are respectively installed at an anode temperature measuring point, a cathode temperature measuring point, a left side series copper bar temperature measuring point and a right side series copper bar temperature measuring point.
7. The wireless temperature measurement early warning system of claim 6, wherein: the MCU core processing unit of each temperature transmission module is respectively connected with 4 paths of DS18B20 temperature sensors through 4 paths of DS18B20 temperature acquisition circuits, and meanwhile, the MCU core processing unit is respectively connected with 4 paths of PT100 thermocouple temperature acquisition devices through 4 paths of PT100 thermocouple temperature acquisition circuits.
8. The wireless temperature measurement early warning system of claim 5, wherein: the connection mode of the system power supply part of the temperature transmission module and the screen display control module is the same as that of the modules, and a +24VDC power supply input provided by a low-voltage power supply system of the whole vehicle is connected with a module component to be powered through an EMC anti-interference circuit, a +5VDC conversion circuit and a +3.3VDC voltage stabilizing circuit in sequence.
9. The wireless temperature measurement early warning system of claim 1, wherein: the wireless transmission adopts a 433M wireless module, the working frequency of a data transmitting module of the module is 315M, a sound meter resonator SAW is adopted for frequency stabilization, the antenna is a built-in spring antenna, and the shell is a plastic shell.
10. The wireless temperature measurement early warning system of claim 2, wherein: the conducting voltage of a voltage dependent resistor MOV1 is set to be 48V, the model of a FUSE FUSE1 is F0.5/125V, the model of a capacitor C1 is 470 muF/35V, the model of a capacitor C2 is 1 muF.105V, the model of a capacitor C3 is 4.7 muF/50V, the model of a capacitor C4 is 1nF/3KV, the model of a capacitor C5 is 4.7 muF/50V, the model of a capacitor C6 is 330 muF/50V, and the model of an inductor LCM1 is common-mode inductor 3.5mH or single-mode inductor 12 muH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121072623.1U CN215178248U (en) | 2021-05-19 | 2021-05-19 | Wireless temperature measurement early warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121072623.1U CN215178248U (en) | 2021-05-19 | 2021-05-19 | Wireless temperature measurement early warning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215178248U true CN215178248U (en) | 2021-12-14 |
Family
ID=79371525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121072623.1U Active CN215178248U (en) | 2021-05-19 | 2021-05-19 | Wireless temperature measurement early warning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215178248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114274779A (en) * | 2022-01-18 | 2022-04-05 | 成都汽车职业技术学校 | Device and method for collecting temperature information and controlling early warning of new energy electric vehicle |
-
2021
- 2021-05-19 CN CN202121072623.1U patent/CN215178248U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114274779A (en) * | 2022-01-18 | 2022-04-05 | 成都汽车职业技术学校 | Device and method for collecting temperature information and controlling early warning of new energy electric vehicle |
| CN114274779B (en) * | 2022-01-18 | 2023-09-19 | 成都汽车职业技术学校 | Device and method for collecting temperature information and controlling early warning of new energy electric vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202533545U (en) | Power transmission network fault detection system based on internet of things technology | |
| CN102749562B (en) | Insulation monitoring device and monitoring method of power cell of electric vehicle | |
| CN104597398B (en) | Intelligent plug-pull type breaker and its monitoring early-warning system | |
| CN102437646B (en) | Wireless temperature and humidity monitoring device for high-voltage switch cabinet | |
| CN210129012U (en) | Switch cabinet partial discharge monitoring and early warning device based on gas monitoring | |
| CN105093076A (en) | Online abnormity monitor of high tension switchgear | |
| CN103308863A (en) | Storage battery monitoring system based on fiber optical ring network | |
| CN215178248U (en) | Wireless temperature measurement early warning system | |
| CN104833894B (en) | The fault monitoring system and fault monitoring method of a kind of electrical equipment | |
| CN105128890A (en) | Monitoring system and monitoring method of power distribution rooms of passenger train carriages | |
| CN202188912U (en) | Power bus temperature measuring system | |
| CN214590574U (en) | Intelligent circuit breaker with load side end zero monitoring function | |
| CN202309221U (en) | Wireless temperature and humidity monitoring device for high-voltage switch cabinets | |
| CN210578659U (en) | Remote monitoring system for power equipment faults | |
| CN206057461U (en) | A kind of lightning monitoring and deterioration state monitoring system of lightning protection box | |
| CN110602637B (en) | Ancient building environmental protection system based on wireless sensor | |
| CN206378569U (en) | A kind of voltage relay abnormal detector | |
| CN202599561U (en) | On-line monitoring device for ring network cabinet | |
| CN105241564A (en) | Bus temperature grading warning device | |
| CN110031120B (en) | Bus temperature measuring device | |
| CN204978707U (en) | Carriage power distribution station monitored control system | |
| CN211237052U (en) | Wireless fire centralized monitoring alarm device | |
| CN203350346U (en) | Potential indicator with temperature measuring function | |
| CN210690722U (en) | Fault positioning system for power distribution circuit equipment | |
| CN102914370A (en) | On-line temperature monitoring device for high-voltage electric equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |