CN204027723U - Switch cubicle surface acoustic wave SAW temp measuring system - Google Patents
Switch cubicle surface acoustic wave SAW temp measuring system Download PDFInfo
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- CN204027723U CN204027723U CN201420414233.1U CN201420414233U CN204027723U CN 204027723 U CN204027723 U CN 204027723U CN 201420414233 U CN201420414233 U CN 201420414233U CN 204027723 U CN204027723 U CN 204027723U
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Abstract
The utility model is switch cubicle surface acoustic wave SAW temp measuring system, and its structure comprises SAW Temperature Sensors 1, surface acoustic wave dual-mode antenna 7, feeder line 9, controller.Advantage: 1) solved the problems such as high pressure isolation, sensor power supply and wiring isolation; 2) small-sized SAW Temperature Sensors, directly be placed in heat generating spot, on controller, directly show the real time temperature of each contact, and can carry out many kinds of parameters setting and inquiry, security is high, stable and reliable for performance, volume is little, is directly installed on the Mume flower contact in switch cubicle, realizes the Real-Time Monitoring of heat generating spot temperature, and and data wireless transmission between controller, switch cabinet structure and the spacial influence of not being subject to flexibly easy for installation.Fixture adopts is directly close to the fingertip of Mume flower contact, can be operated in high pressure, high electric current, highfield, inflammable and explosive, have the various severe application occasions such as burn into dust to carry out temperature survey; 3) support open communication interface, be easy to the system integration realizing.
Description
Technical field
The utility model relates to a kind of surface acoustic wave SAW temp measuring system for switch cubicle thermometric, belong to surface acoustic wave monitoring technical field.
Background technology
The switch cubicle of electric system is in During Process of Long-term Operation, and surface oxidation often appears in the Mume flower contact of circuit breaker cart, the problems such as point is aging of getting an electric shock, and causes even major accident of apparatus overheat.And switch cubicle is Sealing Arrangement, narrow space, general artificial inspection comparatively bothers, and does not also accomplish real time temperature measurement.The solution of contact temperature measurement is even more important.Existing solution mainly contains following two kinds:
1, wireless temperature measurement solution
A) induction way to take power induction way to take power is because the reason of its structure, its volume is all larger, cannot be arranged on contact, even in the switch cubicle of some types, cannot install, mounting means is more loaded down with trivial details, and the upgrading in switch cubicle later stage is unlikely realized substantially.Induction power taking thermometric is subject on the line of induction current affects very large, and induction power taking thermometric is subject to the impact of its internal capacitance or battery, and the operation in switch cubicle also can only have about 5 years.
B) powered battery mode battery cannot solve the relation of volume and capacity always.Because battery volume is bigger than normal, cannot be arranged on contact.Battery life-span under hot environment shortens greatly, must change battery and just can continue to use after 1-2.In electric power maintenance code, 2 year repair time can not only stop using to change battery because of running down of battery by power switch cabinet.Battery electricity-taking mode, later maintenance cost is very high.
2, optical fiber temperature-measurement solution
Optical fiber " essential safety " has solved the passive difficult problem of optical fiber in switch cubicle thermometric.But optical fiber must be in switch cubicle the optical fiber of cloth amplification quantity, and draw switch cubicle outside and measure.Dust in switch cubicle will be adsorbed on optical fiber surface in long-term work, easily produces optical fiber surface and pollutes, and cause optical fiber creeping discharge.Safety coefficient reduces greatly.
Surface acoustic wave SAW thermometry is the effectively detection means such as temperature, pressure and displacement.Apply the physical characteristics of crystalline material.The change of the physical characteristics of crystal has been changed into electric signal automatically by piezoelectricity principle of induction.Its detection principle principle of work be by emission of radio frequency signals to the surface of piezoelectric, then the reflection wave that is subject to temperature and has affected is gone back to electric signal again and obtains temperature data.The largest benefit of surface wave technology is to have utilized the passive principle of work of sensor (high voltage, high electric current) under unconventional running environment to realize wireless temperature data acquisition.Existing market has wireless temperature monitoring and infrared temperature monitoring, and their shortcoming is to be subject to electromagnetic interference (EMI), needs power supply.As charged in thermopair and infrared ray direct irradiations etc. can not adopt on switch cubicle.
The scheme of the switch cubicle thermometric that useful surface acoustic wave techniques realizes in the industry, but be all the thermometric of realizing busbar in switch cubicle, connector, all do not realize the direct measurement of Mume flower contact on circuit breaker cart, main cause is that temperature sensor all adopts shaft-like, spring-like antenna, volume is large, cannot be arranged on Mume flower contact, cannot realize the direct measurement of Mume flower contact temperature in switch cubicle.All be not specifically designed to the precedent of the SAW Temperature Sensors of switch cubicle Mume flower contact thermometric both at home and abroad.
Summary of the invention
The utility model proposes a kind of switch cubicle surface acoustic wave SAW temp measuring system, its object is intended to overcome the existing above-mentioned defect of prior art.Having solved Mume flower contact heat generating spot on the passive and wireless, circuit breaker cart of temp measuring system directly measures and switch cubicle later stage upgrading difficulty headlight problem, by the security that greatly improves native system and move in high-voltage great-current environment, adopt surface acoustic wave and data transmission technology, can under high pressure, high electric current, highfield, inflammable and explosive environment, carry out temperature survey, can be applied to the fields such as electric power, chemical industry and tunnel.
Technical solution of the present utility model: switch cubicle surface acoustic wave SAW temp measuring system, is characterized in that comprising SAW Temperature Sensors, surface acoustic wave dual-mode antenna, feeder line, controller; Wherein SAW Temperature Sensors, setting corresponding to surface acoustic wave dual-mode antenna, SAW collector in controller connects surface acoustic wave dual-mode antenna by radio-frequency antenna connector, feeder line, SAW Temperature Sensors is arranged on the fingertip in switch cubicle, and described fingertip contacts with the moving contact on circuit breaker cart.
Advantage of the present utility model:
1) solve the problems such as high pressure isolation, sensor power supply and wiring isolation, surface acoustic wave itself is exactly to adopt wireless technology, design exclusive small-sized SAW Temperature Sensors, directly be placed in heat generating spot, on controller, directly show the real time temperature of each contact, and can carry out many kinds of parameters setting and inquiry, security is high, stable and reliable for performance.
2) SAW Temperature Sensors volume is little, is directly installed on the Mume flower contact in switch cubicle, realizes the Real-Time Monitoring of heat generating spot temperature, and and controller between data wireless transmission, switch cabinet structure and the spacial influence of not being subject to flexibly easy for installation.Fixture adopts the fingertip of being directly close to Mume flower contact, does not affect the normal use of plum blossom sheet simultaneously, and effect almost arrives with contact synthermal.
3) SAW Temperature Sensors is realized passive mode work, and volume is little, easy for installation, antijamming capability by force, does not use battery, safe and reliable, meets the insulating requirements of electric system; After successful installation, basic Maintenance free, realizes higher frequency and carries out the collection of temperature information, and real-time property is high.
4) utilize the principle of surface acoustic wave to monitor the temperature of power switch cabinet contact, it has adopted surface acoustic wave techniques and data transmission technology, SAW Temperature Sensors can be operated in high pressure, high electric current, highfield, inflammable and explosive, have the various severe application occasions such as burn into dust to carry out temperature survey.
5) there is monitoring point temperature anomaly auto-alarm function, and realize sound and light alarm.
6) support open communication interface, be easy to the system integration realizing.
Brief description of the drawings
Fig. 1 is switch cubicle surface acoustic wave SAW temp measuring system structure scheme of installation.
Fig. 2-1st, controller shows, the main TV structure schematic diagram of control section.
Fig. 2-2nd, the rear view of Fig. 2-1.
Fig. 2-3rd, the upward view of Fig. 2-1.
Fig. 3-1st, the main TV structure schematic diagram of controller collection, power unit.
Fig. 3-2nd, the rear view of Fig. 3-1.
Fig. 3-3rd, the side view of Fig. 3-1.
Fig. 3-4th, the vertical view of Fig. 3-1.
Fig. 4-1st, the main TV structure schematic diagram of SAW Temperature Sensors.
Fig. 4-2nd, the side view of Fig. 4-1.
Fig. 4-3rd, the cut-open view of Fig. 4-1.
Fig. 5 is the functional schematic of switch cubicle surface acoustic wave SAW temp measuring system.
Fig. 6 is the functional schematic of controller.
Fig. 7 is the functional schematic of SAW Temperature Sensors.
In figure 1 is SAW Temperature Sensors, the 2nd, spring, the 3rd, fingertip, the 4th, static contact, the 5th, moving contact, the 6th, circuit breaker cart, the 7th, surface acoustic wave dual-mode antenna, the 8th, baffle plate, the 9th, feeder line, the 10th, metering house's door, the 11st, display control section, the 12nd, gather and power unit, the 13rd, switch cubicle, the 14th, A shell, the 15th, antenna, the 16th, film face-plate, the 17th, charactron, the 18th, run indicator, the 19th, alarm indicator, the 20th, film key, the 21st, A flat cable interface, the 22nd, hummer, the 23rd, system upgrade interface, the 24th, bonnet, the 25th, B flat cable interface, 26 fuses, the 27th, exchange input port, the 28th, power switch, the 29th, radio-frequency antenna connector, the 30th, B shell, the 31st, label, the 32nd, FPC antenna, the 33rd, upper cover, the 34th, A shell fragment, the 35th, circuit unit, the 36th, bearing, the 37th, B shell fragment, the 38th, clip, A is relay metering house, B is breaker chamber, C is bus-bar room.
Embodiment
Contrast accompanying drawing, switch cubicle surface acoustic wave SAW temp measuring system, its structure comprises SAW Temperature Sensors 1, surface acoustic wave dual-mode antenna 7, feeder line 9, controller, wherein SAW Temperature Sensors 1, setting corresponding to surface acoustic wave dual-mode antenna 7, SAW collector in controller is by radio-frequency antenna connector 29, feeder line 9 connects surface acoustic wave dual-mode antenna 7, SAW Temperature Sensors 1 is arranged on the fingertip 3 in switch cubicle 13, described fingertip 3 contacts with the moving contact 5 on circuit breaker cart 6, when work, SAW Temperature Sensors 1 becomes wireless signal the temperature transition of fingertip 3 in expression switch cubicle 13, delivering to controller by surface acoustic wave dual-mode antenna 7 carries out collection analysis and shows, it arrives whole signal transmission path and all realizes wireless, realize high pressure isolation.
The quantity of described SAW Temperature Sensors 1 is 1-6, and concrete usage quantity is installed on demand, and surface acoustic wave dual-mode antenna 7 is arranged on the baffle plate 8 in breaker chamber B.
Described controller is divided into and shows control 11, collection and power supply 12 2 parts, wherein the microprocessor first signal input/output end in display control section 11 by reset administration module, flat cable corresponding the joining of first signal input/output terminal with the SAW collector in collection and power unit 12, the secondary signal input/output end of microprocessor is corresponding the joining of secondary signal input/output terminal with the SAW collector in collection and power unit 12 by flat cable.
The first signal input/output end of microprocessor is corresponding the joining of first signal input/output terminal with the SAW collector in collection and power unit 12 by reset administration module, flat cable.
Collection and power unit 12 are the inside and outside both sides that are arranged on respectively metering house's door 10 of the A of relay metering house with display control section 11.
Contrast Fig. 2-1,2-2,2-3, Fig. 6, display control section 11, its structure comprises A shell 14, antenna 15, film face-plate 16, charactron 17, run indicator 18, alarm indicator 19, film key 20, A flat cable interface 21, hummer 22, system upgrade interface 23, wherein antenna 15 is arranged on the top of A shell 14, on the front surface of this A shell 14, be coated with film face-plate 16, 6 groups of charactrons 17 are housed in A shell 14, this charactron 17 is for parameters such as displays temperature values, on film face-plate 16, be provided with 5 film keys 20, this film key 20 is for inquiring about parameters, at other run indicator 18 and the alarm indicator 19 established of film key 20, on the rear surface of A shell 14, establish A flat cable interface 21, this A flat cable interface 21 is for being connected with the B flat cable interface 25 of controller collection and power unit 12, be provided with hummer 22 and system upgrade interface 23 in the bottom of A shell 14, display control section 11 also comprises a microprocessor, and signal output part of this microprocessor and the signal input part of Zigbee wireless module join, and the signal output part of Zigbee wireless module connects 2.4GHz antenna.
When work, A flat cable interface 21 receives the temperature information of each SAW Temperature Sensors that controller collection and power unit 12 transmit, and through microprocessor analysis conversion, on charactron 17, shows; Can carry out parameter by film inquiry is set, when temperature exceedes the threshold value of setting, alarm indicator 19 will glimmer, the hummer 22 prompting user that pipes.
Contrast Fig. 3-1,3-2,3-3,3-4, Fig. 6, gathers and power unit 12, and its structure comprises bonnet 24, B flat cable interface 25, fuse 26, alternating current input port 27, power switch 28, radio-frequency antenna interface 29, B shell 30; Wherein at the rear portion of B shell 30, bonnet 24 is housed, on this bonnet 24, establishes B flat cable interface 25, on a side of B shell 30, be provided with fuse 26, alternating current input port 27, power switch 28 and radio-frequency antenna interface 29; B flat cable interface 25 is for being connected with the A flat cable interface 21 of controller demonstration and control section 11, and radio-frequency antenna interface 29 is for being connected with feeder line 9.Collection and power unit 12 also comprise a SAW collector, and SAW collector connects surface acoustic wave dual-mode antenna 7.
When work, the working power of this equipment is provided by alternating current input port 27, and show and control section 11 provides working power for controller by B flat cable interface 25, radio-frequency antenna interface 29 is connected with antenna 15 by feeder line 9, the wireless connections of realization and SAW Temperature Sensors 1.The temperature information collecting is delivered to display control section 11 by flat cable interface.
Contrast Fig. 4-1-4-3, Fig. 7, SAW Temperature Sensors 1, its structure comprises label 31, FPC antenna 32, upper cover 33, circuit unit 35, bearing 36, A shell fragment 34, B shell fragment 37, clip 38; Wherein clip 38 joins with bearing 36, circuit unit 35 is housed on this bearing 36, and A shell fragment 34 and B shell fragment 37 are housed on circuit unit 35, and this A shell fragment 34 joins with FPC antenna 32, and upper cover 33 covers on bearing 36, is provided with label 31 on the upper surface of upper cover 33; Surface acoustic wave temperature transition chip in SAW Temperature Sensors 1 connects FPC antenna 32 by matching network.
The length of surface wave temperature sensor is 20mm, the wide 18mm of being, the high 25mm of being, small-sized SAW Temperature Sensors is directly installed on fingertip, this SAW Temperature Sensors is the long 13.2mm of being, the wide 6mm of being with the size of the contact area of fingertip, and the gold-plated shell fragment good by thermal conductivity contacts with fingertip.Realize the monitoring of fingertip real time temperature.Do not affect the action of Mume flower contact simultaneously.
Employing in this SAW Temperature Sensors built-in FPC antenna technology, volume is little, reliable and stable.
The sheathing material of this SAW Temperature Sensors is selected polyimide material, possesses excellent thermotolerance, meets the working environment requirement of power switch cabinet.
When work, circuit unit 35 is measured the temperature of fingertip 3 in circuit breaker cart 6 in real time by B shell fragment 37, and by the FPC antenna 32 being connected with A shell fragment 34, temperature information is transferred to antenna 15.
Claims (9)
1. switch cubicle surface acoustic wave SAW temp measuring system, is characterized in that comprising SAW Temperature Sensors, surface acoustic wave dual-mode antenna, feeder line, controller; Wherein SAW Temperature Sensors, setting corresponding to surface acoustic wave dual-mode antenna, SAW collector in controller connects surface acoustic wave dual-mode antenna by radio-frequency antenna connector, feeder line, SAW Temperature Sensors is arranged on the fingertip in switch cubicle, and described fingertip contacts with the moving contact on circuit breaker cart.
2. switch cubicle surface acoustic wave SAW temp measuring system according to claim 1, the quantity that it is characterized in that described SAW Temperature Sensors is 1-6.
3. switch cubicle surface acoustic wave SAW temp measuring system according to claim 1, it is characterized in that described controller is divided into demonstration control, collection and power supply two parts, wherein the first signal input/output end of the microprocessor in display control section by reset administration module, flat cable corresponding the joining of first signal input/output terminal with the SAW collector in collection and power unit, the secondary signal input/output end of microprocessor is corresponding the joining of secondary signal input/output terminal with the SAW collector in collection and power unit by flat cable.
4. switch cubicle surface acoustic wave SAW temp measuring system according to claim 1, is characterized in that described collection and power unit and display control section are the inside and outside both sides that are arranged on respectively metering house's door of relay metering house.
5. switch cubicle surface acoustic wave SAW temp measuring system according to claim 1, it is characterized in that described display control section, its structure comprises A shell, antenna, film face-plate, charactron, run indicator, alarm indicator, film key, A flat cable interface, hummer, system upgrade interface; Wherein antenna is arranged on the top of A shell, on the front surface of A shell, be coated with film face-plate, 6 groups of charactrons are housed in A shell, film face-plate is provided with 5 film keys, on the rear surface of A shell, establish A flat cable interface, this A flat cable interface is connected with the B flat cable interface in collection and power unit, and the bottom of A shell is provided with hummer and system upgrade interface; Display control section also comprises a microprocessor, and signal output part of this microprocessor and the signal input part of Zigbee wireless module join, and the signal output part of Zigbee wireless module connects 2.4GHz antenna.
6. switch cubicle surface acoustic wave SAW temp measuring system according to claim 1, is characterized in that described collection and power unit, and its structure comprises bonnet, B flat cable interface, fuse, alternating current input port, power switch, radio-frequency antenna interface, B shell; Wherein bonnet is equipped with at the rear portion of B shell, establishes B flat cable interface on this bonnet, and a side of B shell is provided with fuse, alternating current input port, power switch and radio-frequency antenna interface; A flat cable interface in B flat cable Interface and Controler display control section connects, and radio-frequency antenna interface is connected with feeder line, and collection and power unit also comprise a SAW collector, and SAW collector connects surface acoustic wave dual-mode antenna.
7. switch cubicle surface acoustic wave SAW temp measuring system according to claim 1, is characterized in that described SAW Temperature Sensors, and its structure comprises label, FPC antenna, upper cover, circuit unit, bearing, A shell fragment, B shell fragment, clip; Wherein clip and bearing join, and circuit unit are housed on this bearing, and A shell fragment and B shell fragment are housed on circuit unit, and this A shell fragment and FPC antenna join, and upper cover covers on bearing, on the upper surface of upper cover, is provided with label; Surface acoustic wave temperature transition chip in SAW Temperature Sensors connects FPC antenna by matching network.
8. switch cubicle surface acoustic wave SAW temp measuring system according to claim 7, the length that it is characterized in that described SAW Temperature Sensors is 20mm, the wide 18mm of being, the high 25mm of being, be directly installed on fingertip, the contact area of SAW Temperature Sensors and fingertip is long 13.2mm, wide 6mm.
9. switch cubicle surface acoustic wave SAW temp measuring system according to claim 8, is characterized in that the built-in FPC antenna of described SAW Temperature Sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420414233.1U CN204027723U (en) | 2014-07-25 | 2014-07-25 | Switch cubicle surface acoustic wave SAW temp measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420414233.1U CN204027723U (en) | 2014-07-25 | 2014-07-25 | Switch cubicle surface acoustic wave SAW temp measuring system |
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| Publication Number | Publication Date |
|---|---|
| CN204027723U true CN204027723U (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420414233.1U Expired - Fee Related CN204027723U (en) | 2014-07-25 | 2014-07-25 | Switch cubicle surface acoustic wave SAW temp measuring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132748A (en) * | 2014-07-25 | 2014-11-05 | 南京普天通信股份有限公司 | SAW temperature measurement system for switch cabinet |
| CN106159704A (en) * | 2016-07-29 | 2016-11-23 | 安徽永川电气设备有限公司 | A kind of parameter-embedded switch cubicle that module is set |
| CN109474076A (en) * | 2018-12-14 | 2019-03-15 | 湖南长高成套电器有限公司 | A kind of intelligent switchboard system |
-
2014
- 2014-07-25 CN CN201420414233.1U patent/CN204027723U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132748A (en) * | 2014-07-25 | 2014-11-05 | 南京普天通信股份有限公司 | SAW temperature measurement system for switch cabinet |
| CN104132748B (en) * | 2014-07-25 | 2016-08-17 | 南京普天通信股份有限公司 | Switch cubicle surface acoustic wave SAW temp measuring system |
| CN106159704A (en) * | 2016-07-29 | 2016-11-23 | 安徽永川电气设备有限公司 | A kind of parameter-embedded switch cubicle that module is set |
| CN109474076A (en) * | 2018-12-14 | 2019-03-15 | 湖南长高成套电器有限公司 | A kind of intelligent switchboard system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20200725 |