CN208270101U - Switchgear passive and wireless temp measuring system - Google Patents
Switchgear passive and wireless temp measuring system Download PDFInfo
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- CN208270101U CN208270101U CN201820771226.5U CN201820771226U CN208270101U CN 208270101 U CN208270101 U CN 208270101U CN 201820771226 U CN201820771226 U CN 201820771226U CN 208270101 U CN208270101 U CN 208270101U
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- switchgear
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Abstract
The utility model provides a kind of switchgear passive and wireless temp measuring system, it include: switchgear, SAW Temperature Sensors, radio-frequency antenna, controller, the SAW Temperature Sensors are arranged in inside switch cabinet, it is directly contacted with tested pilot, for obtaining the temperature information of tested pilot, and the radio-frequency antenna is sent by the temperature information, the radio-frequency antenna is arranged outside switchgear, it is connect with the controller, the controller is connect with the radio-frequency antenna, for emitting excitation radiofrequency signal to the SAW Temperature Sensors by the radio-frequency antenna, it is also used to receive the temperature radiofrequency signal that the SAW Temperature Sensors are generated according to the excitation radiofrequency signal by the radio-frequency antenna, and it handles and obtains the temperature of tested pilot, improve the safety of switch cabinet temperature measurement.
Description
Technical field
The utility model belongs to switchgear technical field, is to be related to a kind of switchgear passive and wireless thermometric more specifically
System.
Background technique
Power equipment safety reliability is the important link of ultra-large power transmission and distribution and power grid security guarantee, to grid power
Equipment carries out safe operation real time monitoring and necessitates.Long-term grid operation data shows that power grid electrical equipment malfunction is mostly
Cause equipment to run under the high temperature conditions due to high current operation, ageing equipment, dielectric level decline etc., and then causes combustion
It burns, caused by the serious consequences such as explosion.High-tension switch cabinet is the important primary equipment of power transmission and distribution, is safely operated normal for electric power
It conveys extremely important.
High-tension switch cabinet refers to for playing on-off, control in electric system power generation, transmission of electricity, distribution, electric energy conversion and consumption
Or the electric product of the effects of protection, high-tension switch cabinet operational voltage level is in 3.6kV~550kV.High-tension switch cabinet is metal
Sealing switch equipment does not allow to open metal enclosed door in normal work, and all electric connecting points are respectively positioned on high-tension switch cabinet
In.
Optical fiber temperature-measurement difficult wiring in the prior art has dust due to long-pending on optical fiber after working long hours, causes along light
Fibre generates and climbs risk, and safety is low；Current transformer takes temperature sensor temp measuring system, takes the electricity to be by current transformer
Sensor power supply, but since line current is unstable, so power supply is also unstable, and the mode that sensor itself consumes energy has
Limit, long-term high current work may cause self-heating to influence thermometric accuracy, while light current circuit connects in high-tension line
Operation is contacted on contact, there are security risks.
Utility model content
The purpose of this utility model is to provide a kind of switchgear passive and wireless temp measuring systems, it is intended to solve in the prior art
The low problem of high-tension switch cabinet temp measuring system safety.
To achieve the above object, a kind of switchgear passive and wireless temp measuring system provided in this embodiment includes: switchgear, sound
Surface wave temperature sensor, radio-frequency antenna, controller；
The SAW Temperature Sensors are arranged in inside switch cabinet, directly contact with tested pilot, for obtaining quilt
The temperature information of test point, and the radio-frequency antenna is sent by the temperature information；
The radio-frequency antenna is arranged outside switchgear, connect with the controller；
The controller is connect with the radio-frequency antenna, for emitting excitation radiofrequency signal to institute by the radio-frequency antenna
SAW Temperature Sensors are stated, are also used to receive the SAW Temperature Sensors according to by the radio-frequency antenna
The temperature radiofrequency signal for motivating radiofrequency signal to generate, and handle and obtain the temperature of tested pilot.
Further, the SAW Temperature Sensors include helical antenna, SAW device；
The SAW device includes piezoelectric substrate and the resonator that is arranged on the piezoelectric substrate；
The helical antenna is used to receive the excitation radiofrequency signal that the controller is emitted by the radio-frequency antenna,
And the resonator is sent by the excitation radiofrequency signal, the excitation radiofrequency signal is converted sound surface by the resonator
Temperature radiofrequency signal is generated by resonance after wave, and the radio-frequency antenna is emitted to by the helical antenna.
Further, the switchgear passive and wireless temp measuring system further includes spare SAW device, selector；
The spare SAW device connect the same spiral day by the selector with the SAW device
Line.
Further, the SAW Temperature Sensors are multiple；Multiple SAW Temperature Sensors difference
It is arranged on breaker Mume flower contact, busbar and branch's busbar tie point, cable connector.
Further, SAW Temperature Sensors described in the switchgear passive and wireless temp measuring system are solid by steel band
It is scheduled on tested pilot.
Further, the switchgear passive and wireless temp measuring system further include: alarm；
The alarm is connect with the controller, for sounding an alarm when the temperature information is higher than preset threshold.
Further, the switchgear passive and wireless temp measuring system further include: display；
The display is connect with the controller, for showing the temperature information.
Further, the switchgear passive and wireless temp measuring system further includes memory；
The memory is connect with the controller, for storing the temperature information.
Further, the switchgear passive and wireless temp measuring system further include: wireless communication module；
The wireless communication module is connect with the controller, for the temperature information to be wirelessly transmitted to system administration
Platform.
The beneficial effect of switchgear passive and wireless temp measuring system provided by the embodiment of the utility model is: with the prior art
It compares, the utility model embodiment is by providing a kind of switchgear passive and wireless temp measuring system, comprising: switchgear, surface acoustic wave
Temperature sensor, radio-frequency antenna, controller, the SAW Temperature Sensors are arranged in inside switch cabinet, with tested pilot
It directly contacts, is sent to the radio-frequency antenna for obtaining the temperature information of tested pilot, and by the temperature information, it is described to penetrate
Frequency antenna is arranged outside switchgear, connect with the controller, the controller is connect with the radio-frequency antenna, for passing through
Radio-frequency antenna transmitting excitation radiofrequency signal is stated to the SAW Temperature Sensors, is also used to receive by the radio-frequency antenna
The temperature radiofrequency signal that the SAW Temperature Sensors are generated according to the excitation radiofrequency signal, and handle and be tested
The temperature of point improves the safety of switch cabinet temperature measurement.
Detailed description of the invention
Fig. 1 is the structural block diagram of switchgear passive and wireless temp measuring system provided by the embodiment of the utility model；
Fig. 2 is the structural block diagram for the switchgear passive and wireless temp measuring system that another embodiment of the utility model provides.
Appended drawing reference: SAW Temperature Sensors 1, radio-frequency antenna 2, controller 3, SAW device 4, helical antenna
5, spare SAW device 6, alarm 7, display 8, memory 9, wireless communication module 10.
Specific embodiment
In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with
Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
Specific embodiment:
As shown in Figs. 1-2, the utility model embodiment provides a kind of switchgear passive and wireless temp measuring system, comprising: switch
Cabinet, SAW Temperature Sensors 1, radio-frequency antenna 2, controller 3；
The SAW Temperature Sensors 1 are arranged in inside switch cabinet, directly contact with tested pilot, for obtaining quilt
The temperature information of test point, and the radio-frequency antenna 2 is sent by the temperature information；
The radio-frequency antenna 2 is arranged outside switchgear, connect with the controller 3, and avoiding in the prior art will be described
2 magnetic suck of radio-frequency antenna falls existing security risk since absorption is insecure on switchgear inner wall；
The controller 3 is connect with the radio-frequency antenna 2, for emitting excitation radiofrequency signal by the radio-frequency antenna 2
To the SAW Temperature Sensors 1, it is also used to receive the SAW Temperature Sensors 1 by the radio-frequency antenna 2
According to the temperature radiofrequency signal that the excitation radiofrequency signal generates, and handles and obtain the temperature of tested pilot.
Optionally, the controller 3 includes signal excitation module and signal receiving module.
Optionally, the SAW Temperature Sensors 1 include helical antenna 5, SAW device 4；
The SAW device 4 includes piezoelectric substrate and the resonator being arranged on the piezoelectric substrate；
The resonator includes interdigital transducer and the two group reflecting gratings symmetrical on interdigital transducer both sides；
The helical antenna is used to receive the controller 3 to be believed by the excitation radio frequency that the radio-frequency antenna 2 emits
Number, and the resonator is sent by the excitation radiofrequency signal, the excitation radiofrequency signal is converted sound by the resonator
Temperature radiofrequency signal is generated by resonance after surface wave, and the radio-frequency antenna 2 is emitted to by the helical antenna.
Surface acoustic wave refers in body surface generation and along its Free Surface or a kind of elastic wave of interface propagation, described
SAW device 4 is a kind of device for propagating and handling signal by surface acoustic wave, is SAW Temperature Sensors 1
Core.The piezoelectric material for forming the piezoelectric substrate, which refers to be under pressure, to be acted on its both ends of the surface and will appear a major class list of charge
Brilliant or polycrystalline solid material, it is the important carrier that the SAW device 4 carries out energy conversion and signal transmitting.It is interdigital
Energy converter is the core of the SAW device 4, when electric signal (the excitation radiofrequency signal) be input to input it is interdigital
When transducer end, piezoelectric substrate can convert electrical energy into mechanical energy by inverse piezoelectric effect, and in the form of surface acoustic wave
Substrate surface is propagated；When output interdigital transducer termination receives surface acoustic wave signal, piezoelectric substrate can be imitated again by piezoelectricity
The mechanical energy of surface acoustic wave should be transformed into electric signal (the temperature radiofrequency signal) output.
The interdigital transducer and the reflecting grating constitute a resonant cavity, so that the SAW resonator is only to spy
The radiofrequency signal for determining frequency generates response, this specific frequency is the resonance frequency of SAW resonator.With the external world
The resonance frequency of the variation of temperature, SAW resonator can change correspondingly, by the variation for testing its resonance frequency
It obtains corresponding to testing temperature physical quantity.Therefore the temperature radiofrequency signal is the SAW device 4 according to pumping signal
Generate the radiofrequency signal for being able to reflect temperature information generated after resonance.
The course of work of the switchgear passive and wireless temp measuring system are as follows: the SAW Temperature Sensors 1 are set
It in the switchgear, can be tested in pilot by elastic rubber belt or steel band bondage, the radio-frequency antenna 2 and the control
Device 3 is arranged on outside the switchgear, can be spirally connected on the wall for being fixed on the switch cabinet chamber, the signal of the controller 3
Excitation module sends the excitation radiofrequency signal, the sound of the SAW Temperature Sensors 1 by the radio-frequency antenna 2
Surface wave device 4 receives the excitation radiofrequency signal, the sound table of the SAW Temperature Sensors 1 by helical antenna
Surface wave device 4 generates the temperature radiofrequency signal according to the excitation radiofrequency signal resonance.After Energizing cycle, the temperature
Radiofrequency signal is sent by helical antenna, and the signal receiving module of the controller 3 is received described by the radio-frequency antenna 2
Temperature radiofrequency signal, and the temperature radiofrequency signal amplified, down coversion, filtering, analog-to-digital conversion obtain digital signal.It is logical
The excitation radiofrequency signal that emissive porwer is identical, frequency is different is crossed, is found strongest in the temperature radiofrequency signal of generation
Frequency point calculates Current Temperatures using the linear relationship of resonance frequency and temperature.
The beneficial effect of switchgear passive and wireless temp measuring system provided by the embodiment of the utility model is: with the prior art
It compares, the utility model embodiment is by providing a kind of switchgear passive and wireless temp measuring system, comprising: switchgear, surface acoustic wave
Temperature sensor 1, radio-frequency antenna 2, controller 3, the SAW Temperature Sensors 1 setting are and tested in inside switch cabinet
Pilot directly contacts, and is sent to the radio-frequency antenna 2 for obtaining the temperature information of tested pilot, and by the temperature information,
The radio-frequency antenna 2 is arranged outside switchgear, connect with the controller 3, and the controller 3 is connect with the radio-frequency antenna 2,
For emitting excitation radiofrequency signal to the SAW Temperature Sensors 1 by the radio-frequency antenna 2, it is also used to by described
Radio-frequency antenna 2 receives the temperature radiofrequency signal that the SAW Temperature Sensors 1 are generated according to the excitation radiofrequency signal, and
Processing obtains the temperature of tested pilot, improves the safety of switch cabinet temperature measurement.
Further, the switchgear passive and wireless temp measuring system further includes spare SAW device 6, selector；
The spare SAW device 6 connect the same spiral by the selector with the SAW device 4
Antenna.
Optionally, the SAW device 4 can be sent out with the spare SAW device 6 according to the controller 3
The duty ratio sent is the pulse selecting signal of 1:1, is used alternatingly, can also detect the surface acoustic wave in the controller 3
When device 4 is without response, corresponding selection signal is sent, starts the spare SAW device 6, correspondingly, the controller 3
It further include 4 detection module of SAW device, by comparing the intensity and intensity preset threshold of the temperature radiofrequency signal
It realizes.
By the way that the spare SAW device 6 is arranged, the surface acoustic wave device occurred in operation at the scene is avoided
Inconvenience caused by requiring manual replacement when part 4 is without response is low with manpower waste, working efficiency.
Further, the SAW Temperature Sensors 1 are multiple；Multiple SAW Temperature Sensors 1 divide
It She Zhi not be on breaker Mume flower contact, busbar and branch's busbar tie point, cable connector.
Further, the SAW Temperature Sensors 1 are fixed on tested pilot by steel band, stronger, extend
Service life.
Further, the switchgear passive and wireless temp measuring system further include: alarm 7；
The alarm 7 is connect with the controller 3, for issuing police when the temperature information is higher than preset threshold
Report, convenient for notifying staff to overhaul in time.
Optionally, the alarm is sound-light alarm, can be set at the scene of switch cabinet chamber, monitoring room can also be arranged in
Interior management platform.
Further, the switchgear passive and wireless temp measuring system further include: display 8；
The display 8 is connect with the controller 3, for showing the temperature information, is looked into real time convenient for staff
See switchgear temperature conditions.
Further, the switchgear passive and wireless temp measuring system further includes memory 9；
The memory 9 is connect with the controller 3, for storing the temperature information, is gone through convenient for staff's inquiry
History temperature information improves the test point for failure occurred and payes attention to, and increases maintenance number.
Further, the switchgear passive and wireless temp measuring system further include: wireless communication module 10；
The wireless communication module 10 is connect with the controller 3, for the temperature information to be wirelessly transmitted to system
Manage platform.Optionally, the wireless communication module 10 can be GPRS module (General Packet Radio
Service, general packet radio service), signal is not easy to lose, securely and reliably.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or indirectly on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on the figure or position are closed
System, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (9)
1. a kind of switchgear passive and wireless temp measuring system characterized by comprising switchgear, is penetrated SAW Temperature Sensors
Frequency antenna, controller；
The SAW Temperature Sensors are arranged in inside switch cabinet, directly contact with tested pilot, tested for obtaining
The temperature information of point, and the radio-frequency antenna is sent by the temperature information；
The radio-frequency antenna is arranged outside switchgear, connect with the controller；
The controller is connect with the radio-frequency antenna, for emitting excitation radiofrequency signal to the sound by the radio-frequency antenna
Surface wave temperature sensor is also used to receive the SAW Temperature Sensors according to the excitation by the radio-frequency antenna
The temperature radiofrequency signal that radiofrequency signal generates, and handle and obtain the temperature of tested pilot.
2. switchgear passive and wireless temp measuring system according to claim 1, which is characterized in that the surface acoustic wave temperature passes
Sensor includes helical antenna, SAW device；
The SAW device includes piezoelectric substrate and the resonator that is arranged on the piezoelectric substrate；
The helical antenna is used to receive the excitation radiofrequency signal that the controller is emitted by the radio-frequency antenna, and will
The excitation radiofrequency signal is sent to the resonator, after the excitation radiofrequency signal is converted surface acoustic wave by the resonator
Temperature radiofrequency signal is generated by resonance, and the radio-frequency antenna is emitted to by the helical antenna.
3. switchgear passive and wireless temp measuring system according to claim 2, which is characterized in that further include spare surface acoustic wave
Device, selector；
The spare SAW device connect the same helical antenna by the selector with the SAW device.
4. switchgear passive and wireless temp measuring system according to claim 1, which is characterized in that the surface acoustic wave temperature passes
Sensor is multiple；Multiple SAW Temperature Sensors are separately positioned on breaker Mume flower contact, busbar and branch's busbar
On tie point, cable connector.
5. switchgear passive and wireless temp measuring system according to claim 1, which is characterized in that the surface acoustic wave temperature passes
Sensor is fixed on tested pilot by steel band.
6. switchgear passive and wireless temp measuring system according to claim 1, which is characterized in that further include: alarm；
The alarm is connect with the controller, for sounding an alarm when the temperature information is higher than preset threshold.
7. switchgear passive and wireless temp measuring system according to claim 1-6, which is characterized in that further include: it is aobvious
Show device；
The display is connect with the controller, for showing the temperature information.
8. switchgear passive and wireless temp measuring system according to claim 1-6, which is characterized in that further include storage
Device；
The memory is connect with the controller, for storing the temperature information.
9. switchgear passive and wireless temp measuring system according to claim 8, which is characterized in that further include: radio communication mold
Block；
The wireless communication module is connect with the controller, is patted for the temperature information to be wirelessly transmitted to system pipes
Platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820771226.5U CN208270101U (en) | 2018-05-22 | 2018-05-22 | Switchgear passive and wireless temp measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820771226.5U CN208270101U (en) | 2018-05-22 | 2018-05-22 | Switchgear passive and wireless temp measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208270101U true CN208270101U (en) | 2018-12-21 |
Family
ID=64685560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820771226.5U Active CN208270101U (en) | 2018-05-22 | 2018-05-22 | Switchgear passive and wireless temp measuring system |
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| Country | Link |
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| CN (1) | CN208270101U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141409A (en) * | 2020-01-22 | 2020-05-12 | 国网上海市电力公司 | Transmission line cable temperature monitoring device |
| CN115655535A (en) * | 2022-10-17 | 2023-01-31 | 高桥防火科技股份有限公司 | High-sensitivity sensing intelligent cable |
-
2018
- 2018-05-22 CN CN201820771226.5U patent/CN208270101U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141409A (en) * | 2020-01-22 | 2020-05-12 | 国网上海市电力公司 | Transmission line cable temperature monitoring device |
| CN115655535A (en) * | 2022-10-17 | 2023-01-31 | 高桥防火科技股份有限公司 | High-sensitivity sensing intelligent cable |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200630 Address after: 050000 unit 101, unit 1, building 4, Fangyi science and Technology Park, 313 Zhujiang Avenue, hi tech Zone, Shijiazhuang City, Hebei Province Patentee after: Zhongyan Xinke Intelligent Electric Co.,Ltd. Address before: Room 1, unit 4, building No. 4, C District C District, Shijiazhuang high tech Zone, Hebei Province Patentee before: ZHONGYAN NEW MATERIAL Co.,Ltd. |