CN219736432U - Passive wireless temperature and humidity sensor - Google Patents
Passive wireless temperature and humidity sensor Download PDFInfo
- Publication number
- CN219736432U CN219736432U CN202222757866.XU CN202222757866U CN219736432U CN 219736432 U CN219736432 U CN 219736432U CN 202222757866 U CN202222757866 U CN 202222757866U CN 219736432 U CN219736432 U CN 219736432U
- Authority
- CN
- China
- Prior art keywords
- temperature
- box body
- humidity
- induction ring
- humidity sensor
- 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
- 230000006698 induction Effects 0.000 claims abstract description 45
- 230000005611 electricity Effects 0.000 claims abstract description 21
- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000004044 response Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 229910000889 permalloy Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model relates to temperature and humidity detection equipment of electrical equipment, and discloses a passive wireless temperature and humidity sensor, which comprises a module box, an electricity taking induction ring penetrating through the module box and a circuit board arranged in the module box, wherein the module box comprises an upper box body and a lower box body which is connected with the upper box body in a buckling way, a rectangular through groove is formed in the joint of the upper box body and the electricity taking induction ring, a temperature and humidity sensing element, a wireless communication device and an induction coil are arranged on the circuit board, the electricity taking induction ring is installed on an object to be detected such as a switch cabinet and a transmission wire in a binding way, the temperature and humidity sensing element detects the temperature and humidity of the object to be detected, the detected signal is transmitted to monitoring equipment on the ground through the wireless communication device for real-time monitoring, and the rectangular through groove avoids the electricity taking induction ring from being scratched in the module box, so that the service life is prolonged.
Description
Technical Field
The utility model relates to temperature and humidity detection equipment of electrical equipment, in particular to a passive wireless temperature and humidity sensor.
Background
The substation cable and the connector are used as important daily monitoring objects for system operation, the operation temperature is an important external representation of the operation state of equipment (the working state of the equipment can be accurately judged according to the information of the operation temperature, the relative temperature rise and the like), and an important data basis can be provided for realizing state maintenance. Because of the outside climate change of cold and hot humidity, the contact point parts of various electrical equipment are easy to cause the problems of overhigh temperature rise and the like due to factors such as material aging, poor contact, current overload and the like, thereby influencing the normal operation and use of the equipment, even causing the equipment to fire and explode when measures are not taken in time, the measuring instruments such as temperature sensors and the like are mainly used for measuring the temperature of the surface or the contact point of a high-voltage electrified object, such as the operation temperature of exposed contacts, bus connection parts, outdoor disconnecting links, transformers and the like in a high-voltage switch cabinet.
In the application document with the publication number of CN109596244A, a wireless temperature measuring device for a power cable and a device connector is disclosed, and the wireless temperature measuring device comprises an upper cover, a lower cover, a coil, a magnetic conduction fastener and a coil framework, wherein the upper cover and the lower cover are matched and clamped together, a control board is placed in the lower cover, one side of the control board is connected with an electric wire, the electric wire penetrates out of the lower cover, the end part of the electric wire is connected with a temperature probe, and a super capacitor, a low-power consumption singlechip and a wireless transmitting module are arranged on the control board; the coil framework is provided with a coil, the opening of the coil is provided with a magnetic conduction fastener, the coil and the magnetic conduction fastener are fastened together through screws, and grooves matched with the shape and the width of the coil are formed in the upper cover and the lower cover, so that the coil is placed between the grooves of the upper cover and the grooves of the lower cover. However, in this application document, the soft magnetic strip needs to be closely attached to the joint of the high-voltage equipment, the contact, the temperature of the parts such as the incoming line and the outgoing line, and the like for real-time monitoring, and the inner ring of the soft magnetic strip is easily worn due to direct contact of the inner ring of the soft magnetic strip because the appearance of the equipment is not fixed, so that the installation is inconvenient, and the use effect of induction power taking and the service life of the sensor are affected.
Disclosure of Invention
The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the passive wireless temperature and humidity sensor which has stable performance, small volume and convenient installation.
The technical scheme adopted by the utility model is as follows: the utility model provides a passive wireless temperature and humidity sensor, is in including the module box, penetrating the setting get electric induction ring and the setting on the module box is in the inside circuit board of module box, the module box include the box body and with go up the lower box body that the box body buckle is connected, be provided with on the lower box body with get the rectangle logical groove of electric induction ring adaptation, be provided with temperature and humidity sensing element, wireless communication device and induction coil on the circuit board, get electric induction ring and pass induction coil realizes the response and gets the electricity.
In the scheme, the module box is formed by connecting the upper box body and the lower box body in a buckling manner, the electricity taking induction ring is installed on an object to be detected such as a switch cabinet and a power transmission wire in a binding manner, the temperature and humidity sensing element detects the temperature and the humidity of the object to be detected, the detected signals are transmitted to monitoring equipment on the ground through the wireless communication device to realize real-time monitoring, the rectangular through groove is used for placing the electricity taking induction ring, and the electricity taking induction ring is prevented from being scratched in the module box, so that the service life of the utility model is prolonged, induction electricity taking is realized by the electricity taking induction ring penetrating through the induction coil, power supply replacement is avoided, maintenance and inspection cost is reduced, the occupied volume is small, and the installation is convenient.
The circuit board comprises a signal processing chip, a voltage-current conversion circuit, an overvoltage protection circuit, a voltage stabilizing circuit and a radio frequency circuit, wherein the input end of the voltage-current conversion circuit is electrically connected with the induction coil, the output end of the voltage-current conversion circuit is electrically connected with the signal processing chip through the overvoltage protection circuit and the voltage stabilizing circuit respectively, and the input end of the radio frequency circuit is electrically connected with the signal processing chip. Therefore, the overvoltage protection circuit and the voltage stabilizing circuit realize the protection of the internal circuit, and the damage to the utility model caused by overlarge current and voltage of induced power taking due to overlarge current passing through the detection equipment is avoided.
The temperature and humidity sensing element comprises a temperature sensing sheet arranged at the bottom of the lower box body and a humidity sensing sheet arranged on the circuit board, a through hole communicated with the humidity sensing sheet is formed in the top of the upper box body, and the temperature sensing sheet and the humidity sensing sheet are electrically connected with the circuit board. Therefore, the temperature sensing sheet is used for measuring temperature data on an object to be measured, the humidity sensing sheet is used for measuring humidity data in the environment through the through hole, and the temperature and humidity signals are transmitted to monitoring equipment on the ground through wireless communication signals for real-time monitoring.
The electricity taking induction ring is provided with two anti-slip pieces, and a plurality of anti-slip strips are arranged on the inner sides of the two anti-slip pieces. Therefore, the two anti-skid parts are arranged on the electricity taking magnetic ring through the sliding groove, and the anti-skid strips are clung to the part to be detected and used for fixing the installation position of the utility model on the object to be detected.
The electricity taking induction ring is provided with a fixing clamp at one end far away from the module box, and a fixing screw is arranged on the fixing clamp. Therefore, according to the diameter of the object to be measured, the power taking induction ring is adjusted through the fixing clamp and the fixing screw and is fixed on the object to be measured, so that the power taking induction ring can adapt to the object to be measured with a certain size, and the applicability of the power taking induction ring is improved.
The upper box body is internally provided with a clamping piece, and the inner wall of the lower box body is provided with a clamping groove which is in clamping fit with the clamping piece. Therefore, the buckling piece of the upper box body is buckled with the clamping groove of the lower box body to realize detachable installation.
The electricity taking induction ring adopts iron-nickel alloy with high magnetic conductivity. Therefore, the electricity taking induction ring adopting the iron-nickel alloy with high magnetic conductivity can keep high magnetic conductivity in a weak magnetic field, and has the advantages of high hardness, high resistivity, low loss and the like.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an exploded view of the present utility model;
fig. 3 is a schematic diagram of the internal circuitry of the present utility model.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
As shown in fig. 1 to 3, a passive wireless temperature and humidity sensor comprises a module box 1, a power taking induction ring 2 penetrating through the module box 1 and a circuit board 3 arranged inside the module box 1, wherein the module box 1 comprises an upper box body 11 and a lower box body 12 connected with the upper box body 11 in a buckling manner, a buckling piece 111 is arranged in the upper box body 11, a clamping groove 121 matched with the buckling piece 111 in a buckling manner is formed in the inner wall of the lower box body 12, the power taking induction ring 2 is made of high-permeability alloy, a rectangular through groove 13 matched with the power taking induction ring 2 is formed in the lower box body 12, a temperature and humidity sensing element 4, a wireless communication device 5 and an induction coil 6 are arranged on the circuit board 3, the temperature and humidity sensing element 4 comprises a temperature sensing piece 41 arranged at the bottom of the lower box body 12 and a humidity sensing piece 42 arranged on the circuit board 3, a through hole 112 communicated with the humidity sensing piece 42 is formed in the top of the upper box body 11, and the temperature sensing piece 41 and the humidity sensing piece 42 are connected with the circuit board 3 in a penetrating manner, and the power taking induction ring 2 is electrically connected with the circuit board 6. In this embodiment, the electricity taking induction ring 2 is a permalloy sheet composed of iron-nickel alloy, and by using the characteristic of high magnetic permeability of permalloy, induction electricity taking is realized by matching the electricity taking permalloy sheet with the induction coil 6, so as to provide working power for equipment, and the electricity taking range is 5-5000A. In this embodiment, two anti-slip pieces 7 are disposed on the power taking induction ring 2, a plurality of anti-slip strips 71 are disposed on the inner side of each anti-slip piece 7, in this embodiment, a fixing clamp 8 is disposed at one end, far away from the module box 1, of the power taking induction ring 2, a fixing screw 81 is disposed on the fixing clamp 8, and the fixing screw 81 is an inner hexagon screw.
As shown in fig. 3, the circuit board 3 includes a signal processing chip 31, a voltage-current conversion circuit 32, an overvoltage protection circuit 33, a voltage stabilizing circuit 34, and a radio frequency circuit 35, wherein an input end of the voltage-current conversion circuit 32 is electrically connected with the induction coil 6, an output end of the voltage-current conversion circuit 32 is electrically connected with the signal processing chip 31 through the overvoltage protection circuit 33 and the voltage stabilizing circuit 34, and an input end of the radio frequency circuit 35 is electrically connected with the signal processing chip 31. In this embodiment, the overvoltage protection circuit 33 and the voltage stabilizing circuit 34 protect the internal circuit board, so as to avoid damage to the electronic components such as the signal processing chip 31 and the temperature and humidity sensing element caused by too large or too small current and voltage. After the signal processing chip 31 collects and analyzes the measurement data of the temperature and humidity sensing element 4, the signal to be transmitted to the outside is converted into a wireless transmission signal by the wireless radio frequency circuit 11, and the wireless transmission signal is transmitted to the outside by the wireless communication device 5. In this embodiment, the temperature and humidity sampling frequency may be set, and default setting is 20S/time.
Finally, it should be emphasized that the foregoing description is merely illustrative of the preferred embodiments of the utility model, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the utility model, and any such modifications, equivalents, improvements, etc. are intended to be included within the scope of the utility model.
Claims (7)
1. A passive wireless temperature and humidity sensor, characterized in that: including module box (1), penetrating setting are in get electric induction ring (2) and setting on module box (1) inside circuit board (3) of module box (1), module box (1) include box body (11) and with lower box body (12) that last box body (11) buckle is connected, be provided with on lower box body (12) with get rectangular logical groove (13) of electric induction ring (2) adaptation, be provided with temperature and humidity sensing element (4), wireless communication device (5) and induction coil (6) on circuit board (3), get electric induction ring (2) and pass induction coil (6) realization response is got.
2. A passive wireless temperature and humidity sensor according to claim 1 wherein: the circuit board (3) comprises a signal processing chip (31), a voltage-current conversion circuit (32), an overvoltage protection circuit (33), a voltage stabilizing circuit (34) and a wireless radio frequency circuit (35), wherein the input end of the voltage-current conversion circuit (32) is electrically connected with the induction coil (6), the output end of the voltage-current conversion circuit (32) is electrically connected with the signal processing chip (31) through the overvoltage protection circuit (33) and the voltage stabilizing circuit (34) respectively, and the input end of the wireless radio frequency circuit (35) is electrically connected with the signal processing chip (31).
3. A passive wireless temperature and humidity sensor according to claim 1 wherein: the temperature and humidity sensing element (4) comprises a temperature sensing sheet (41) arranged at the bottom of the lower box body (12) and a humidity sensing sheet (42) arranged on the circuit board (3), a through hole (112) for communicating the humidity sensing sheet (42) is formed in the top of the upper box body (11), and the temperature sensing sheet (41) and the humidity sensing sheet (42) are electrically connected with the circuit board (3).
4. A passive wireless temperature and humidity sensor according to claim 1 wherein: two anti-slip pieces (7) are arranged on the electricity taking induction ring (2), and a plurality of anti-slip strips (71) are arranged on the inner sides of the two anti-slip pieces (7).
5. A passive wireless temperature and humidity sensor according to claim 1 wherein: the power taking induction ring (2) is provided with a fixing clamp (8) at one end far away from the module box (1), and a fixing screw (81) is arranged on the fixing clamp (8).
6. A passive wireless temperature and humidity sensor according to claim 1 wherein: the upper box body (11) is internally provided with a clamping piece (111), and the inner wall of the lower box body (12) is provided with a clamping groove (121) which is in clamping fit with the clamping piece (111).
7. A passive wireless temperature and humidity sensor according to claim 1 wherein: the electricity taking induction ring (2) adopts iron-nickel alloy with high magnetic conductivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222757866.XU CN219736432U (en) | 2022-10-20 | 2022-10-20 | Passive wireless temperature and humidity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222757866.XU CN219736432U (en) | 2022-10-20 | 2022-10-20 | Passive wireless temperature and humidity sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219736432U true CN219736432U (en) | 2023-09-22 |
Family
ID=88054249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222757866.XU Active CN219736432U (en) | 2022-10-20 | 2022-10-20 | Passive wireless temperature and humidity sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219736432U (en) |
-
2022
- 2022-10-20 CN CN202222757866.XU patent/CN219736432U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9318857B2 (en) | Power strip and electrical power measurement system | |
| CA2550449A1 (en) | Electricity meter | |
| US20210098906A1 (en) | Sensor device for an electrical terminal arrangement, electrical terminal arrangement, electrical terminal block, switchgear cabinet and read-out device | |
| CN203881834U (en) | AC-DC current wireless monitoring equipment | |
| CN108562849B (en) | Self-powered detection device for switchgear | |
| US20220187346A1 (en) | Medium voltage sensor using a multi-component resistive voltage divider | |
| CN219736432U (en) | Passive wireless temperature and humidity sensor | |
| WO2013166428A1 (en) | A current sensor having an integral voltage clamp | |
| CN109709377A (en) | A kind of current detector | |
| CN211718337U (en) | Composite sensor based on current transformer | |
| GB2509965A (en) | Electrical current sensor incorporating a Rogowski coil with a narrow gap | |
| CN210863873U (en) | Single-phase electric parameter metering device and tail end metering device | |
| CN209673876U (en) | A kind of current detector | |
| CN112858854A (en) | Passive composite ultrasonic partial discharge sensor and monitoring system | |
| CN211669283U (en) | Thunder and lightning monitoring devices | |
| GB2607143A (en) | Intelligent link box with early warning system for online monitoring of sheath bonding system and high voltage cable accessories | |
| CN101498751A (en) | Wrist wearing type digital electric field detection meter | |
| CN215575462U (en) | Passive composite ultrasonic partial discharge sensor | |
| CN206683764U (en) | Temperature-detecting device | |
| CN211013270U (en) | Mutual inductance type wireless temperature sensor and temperature detection device | |
| CN216310107U (en) | Digital quantity Hall current sensor and sensor debugging circuit | |
| CN218628669U (en) | Temperature transmitter wiring terminal connecting device | |
| CN215263681U (en) | Circuit breaker, ammeter and current sensor thereof | |
| CN210665881U (en) | Loop resistance detection circuit, detector and detection system | |
| CN210036979U (en) | Wireless extension box of temperature sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |