CN109708774B - Passive wireless temperature sensor with gasket structure - Google Patents
Passive wireless temperature sensor with gasket structure Download PDFInfo
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- CN109708774B CN109708774B CN201910067143.7A CN201910067143A CN109708774B CN 109708774 B CN109708774 B CN 109708774B CN 201910067143 A CN201910067143 A CN 201910067143A CN 109708774 B CN109708774 B CN 109708774B
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- 238000010897 surface acoustic wave method Methods 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000012806 monitoring device Methods 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
Abstract
The invention discloses a passive wireless temperature sensor with a gasket structure, which comprises a surface acoustic wave sensor chip, a sensor antenna, a circuit board and a sensor support; the temperature sensor is of a gasket type structure; the sensor antenna and the circuit board are of annular structures with circular through holes; the sensor support is provided with a cylindrical boss structure matched with the circular through hole; the cylindrical boss structure of the sensor support is sequentially inserted into the circular through holes of the sensor antenna and the circuit board, and the sensor antenna and the circuit board are fixedly connected with the sensor support; the surface acoustic wave sensor chip and the sensor antenna are connected with the circuit board. The annular structure makes the sensor easy to install and fix, and the annular antenna also ensures the stability of wireless transmission. The invention has the advantages of small volume, light weight and stable structure, and can work in severe environments such as strong magnetic field, high temperature, strong radiation and the like. The temperature monitoring device is suitable for temperature monitoring of electrical equipment such as a switch cabinet, a transformer, a high-voltage cable and the like.
Description
Technical Field
The invention belongs to the technical field of temperature sensors, relates to a passive wireless temperature sensor with a gasket structure, and particularly relates to a gasket structure temperature sensor based on a passive wireless surface acoustic wave technology.
Background
The switch cabinet needs to detect the temperature of the electric element in the cabinet body in the use process, so that safety accidents caused by overhigh temperature are avoided. The traditional temperature measurement system such as infrared, optical fiber, active wireless and the like has certain technical defects in the aspects of safety, stability, instantaneity and the like, has high failure rate and can not completely meet the use requirements. Therefore, passive wireless temperature sensors based on surface acoustic wave technology are increasingly used in electrical equipment such as switch cabinets. At present, the passive wireless temperature sensor commonly used in the switch cabinet equipment is designed as a watchband, and the temperature sensor is tied on a measured object through the watchband, so that the real-time monitoring of the equipment temperature is realized. However, in the actual use process, the high-voltage equipment is inevitably vibrated, so that the temperature measuring device fixed on the electrical component is loosened, the temperature measuring device is easy to collide with the electrical component, and the stability of the temperature measuring device is influenced.
Disclosure of Invention
The purpose is as follows: in order to overcome the defects in the prior art, the invention provides a passive wireless temperature sensor with a gasket structure, which is suitable for monitoring the temperature of a cable terminal of a medium-voltage switch cabinet.
The technical scheme is as follows: in order to solve the technical problems, the invention adopts the following technical scheme:
a temperature sensor comprises a surface acoustic wave sensor chip, a sensor antenna, a circuit board and a sensor support;
the temperature sensor is of a gasket type structure; the sensor antenna and the circuit board are of annular structures with circular through holes; the sensor support is provided with a cylindrical boss structure matched with the circular through hole;
the cylindrical boss structure of the sensor support is sequentially inserted into the circular through holes of the sensor antenna and the circuit board, and the sensor antenna and the circuit board are fixedly connected with the sensor support;
the surface acoustic wave sensor chip and the sensor antenna are connected with the circuit board.
Preferably, the temperature sensor is characterized in that the surface acoustic wave sensor chip and the sensor antenna are welded on the circuit board.
Preferably, the temperature sensor is characterized in that the sensor antenna is a panel antenna.
Preferably, the temperature sensor is characterized in that the sensor support is made of metal and has good thermal conductivity.
Preferably, the temperature sensor is characterized in that the height of the cylindrical boss structure of the sensor support is larger than the sum of the thicknesses of the sensor antenna and the circuit board.
As a preferable scheme, the temperature sensor is characterized in that the thickness of the sensor support is larger than the sum of the thicknesses of the surface acoustic wave sensor chip, the sensor antenna and the circuit board, and the temperature sensor is used for bearing force during installation and protecting a sensor assembly.
In the practical detection application process, the upper end and the lower end of the sensor support are stressed, and the surface acoustic wave sensor chip, the sensor antenna and the circuit board are not stressed.
The beneficial effects are that: the passive wireless temperature sensor with the gasket structure provided by the invention has the following advantages: the sensor is of a gasket type structural design, a sensor antenna and a circuit board are of a circular ring structure, the antenna and the circuit board are fixedly connected with a sensor support, and the sensor is connected with the antenna and the circuit board. The annular structure makes the sensor easy to install and fix, and the annular antenna also ensures the stability of wireless transmission. The invention has the advantages of small volume, light weight and stable structure, and can work in severe environments such as strong magnetic field, high temperature, strong radiation and the like. The temperature monitoring device is suitable for temperature monitoring of electrical equipment such as a switch cabinet, a transformer, a high-voltage cable and the like. By adopting the surface acoustic wave passive wireless sensing technology, the surface acoustic wave sensor and the cable terminal are relatively fixed, the problems of low efficiency and unstable temperature measuring device of the traditional switch cabinet due to temperature dependence on site manual monitoring are solved, and remote, real-time and safe monitoring is realized.
Drawings
FIG. 1 is a schematic top view of a shim structured temperature sensor of an embodiment;
FIG. 2 is a side exploded view of a shim structured temperature sensor of an embodiment;
FIG. 3 is a side assembly view of a shim structured temperature sensor of an embodiment;
fig. 4 is a schematic diagram of an embodiment of a gasket structure temperature sensor applied to a cable terminal of a switch cabinet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Example 1
As shown in fig. 1, 2 and 3, a temperature sensor 7 comprises a surface acoustic wave sensor chip 1, a sensor antenna 2, a circuit board 3 and a sensor support 4;
the temperature sensor is of a gasket type structure; the sensor antenna and the circuit board are of annular structures with circular through holes; the sensor support 4 is provided with a cylindrical boss structure matched with the circular through hole;
the cylindrical boss structure of the sensor support 4 is sequentially inserted into the circular through holes of the sensor antenna and the circuit board, and the sensor antenna 2 and the circuit board 3 are fixedly connected with the sensor support 4;
the surface acoustic wave sensor chip 1 and the sensor antenna 2 are connected with the circuit board 3.
In some embodiments, as shown in fig. 1, 2 and 3, the saw sensor chip 1 and the sensor antenna 2 are soldered together on the circuit board 3.
In some embodiments, as shown in fig. 1, 2 and 3, the sensor antenna 2 adopts a loop structure, and is a flat panel antenna.
In some embodiments, as shown in fig. 1, 2, 3, the sensor mount 4 is a metal mount with good thermal conductivity. The height of the cylindrical boss structure of the sensor support 4 is greater than the sum of the thicknesses of the sensor antenna 2 and the circuit board 3. The thickness of the sensor support 4 is larger than the sum of the thicknesses of the surface acoustic wave sensor chip 1, the sensor antenna 2 and the circuit board 3, and the sensor support is used for bearing force during installation and protecting a sensor assembly.
In some embodiments, as shown in fig. 4, during the actual detection application, the upper and lower ends of the sensor support 4 are stressed, and the saw sensor chip 1, the sensor antenna 2 and the circuit board 3 are not stressed.
Fig. 4 is a schematic diagram of the application of the temperature sensor in a cable terminal of a switch cabinet, which comprises a cable terminal 5, a sleeve insert 6, the temperature sensor 7, a cable connector 8, a fixing nut 9, a reader antenna 10 and a reader 11.
The cable terminal 5 is mounted in a medium voltage switch, the temperature sensor 7 is mounted on the sleeve insert 6, in contact with the cable terminal 5 and the cable connector 8, and the temperature sensor 7 is fixed by a nut 9. Simultaneously, a reader antenna 10 and a reader 11 are arranged, and the reader antenna 10 is adsorbed on the wall of the switch cabinet through a magnet. The reader antenna 10 and the reader 11 are connected by wire.
When the temperature sensor is specifically used, the reader 11 transmits an inquiry signal through the reader antenna 10, the sensor antenna 2 transmits the signal to the circuit board 3 and the surface acoustic wave sensor chip 1 after receiving the inquiry signal, the sensor support 4 is in close contact with the cable terminal 5, when the temperature of the cable terminal 5 changes, the surface acoustic wave sensor chip 1 can rapidly detect temperature information through heat conduction of the sensor support 4 and transmit the detected temperature information to the reader antenna 10 through the sensor antenna 2, the echo signal is provided with the temperature information, and the reader 11 receives the temperature signal through the reader antenna 10.
In summary, the passive wireless temperature sensor with the gasket structure has the advantages of simple and reliable structure, capability of realizing passive wireless monitoring and convenience in installation and maintenance.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the protection of the present invention.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (4)
1. The temperature sensor is characterized by comprising a surface acoustic wave sensor chip, a sensor antenna, a circuit board and a sensor support;
the temperature sensor is of a gasket type structure; the sensor antenna and the circuit board are of annular structures with circular through holes; the sensor support is provided with a cylindrical boss structure matched with the circular through hole;
the cylindrical boss structure of the sensor support is sequentially inserted into the circular through holes of the sensor antenna and the circuit board, and the sensor antenna and the circuit board are fixedly connected with the sensor support;
the surface acoustic wave sensor chip and the sensor antenna are connected with the circuit board;
the height of the cylindrical boss structure of the sensor support is larger than the sum of the thicknesses of the sensor antenna and the circuit board;
the thickness of the sensor support is larger than the sum of the thicknesses of the surface acoustic wave sensor chip, the sensor antenna and the circuit board, and the sensor support is used for protecting the surface acoustic wave sensor chip, the sensor antenna and the circuit board when being mounted.
2. The temperature sensor of claim 1, wherein the saw sensor chip and sensor antenna are soldered to the circuit board.
3. The temperature sensor of claim 1, wherein the sensor antenna is a planar antenna.
4. The temperature sensor of claim 1, wherein the sensor mount is metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910067143.7A CN109708774B (en) | 2019-01-24 | 2019-01-24 | Passive wireless temperature sensor with gasket structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910067143.7A CN109708774B (en) | 2019-01-24 | 2019-01-24 | Passive wireless temperature sensor with gasket structure |
Publications (2)
| Publication Number | Publication Date |
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| CN109708774A CN109708774A (en) | 2019-05-03 |
| CN109708774B true CN109708774B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910067143.7A Active CN109708774B (en) | 2019-01-24 | 2019-01-24 | Passive wireless temperature sensor with gasket structure |
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| CN (1) | CN109708774B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057459A (en) * | 2019-05-05 | 2019-07-26 | 劭行（苏州）智能科技有限公司 | The temperature detection structure of temperature wireless passive sensor and ring network cabinet |
| GB2613411A (en) * | 2021-11-30 | 2023-06-07 | Airbus Operations Ltd | Temperature sensing device with antenna |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56162199A (en) * | 1980-04-16 | 1981-12-12 | Sippican Corp | Temperature measuring system |
| CN103414006A (en) * | 2013-08-13 | 2013-11-27 | 常州智梭传感科技有限公司 | Ultra-thin passive wireless acoustic surface wave sensor |
| CN204214571U (en) * | 2014-11-17 | 2015-03-18 | 王东方 | For the passive and wireless temperature monitoring collar of metal bearing |
| CN105415987A (en) * | 2014-09-19 | 2016-03-23 | 软控股份有限公司 | Passive surface acoustic wave sensing device and intelligent tire |
| CN205407084U (en) * | 2016-03-01 | 2016-07-27 | 北京中讯四方科技股份有限公司 | Looped netowrk is connecting screw rod temperature sensor's mounting structure cashier's office in a shop |
| CN108692824A (en) * | 2018-03-21 | 2018-10-23 | 中电科技德清华莹电子有限公司 | A kind of passive wireless acoustic surface wave temperature sensor |
| CN109186808A (en) * | 2018-10-31 | 2019-01-11 | 劭行（苏州）智能科技有限公司 | The temperature wireless sensor-based system of ring network cabinet |
| CN209459790U (en) * | 2019-01-24 | 2019-10-01 | 上海置信电气股份有限公司 | A kind of passive wireless temperature sensor of gasket construction |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2925696B1 (en) * | 2007-12-21 | 2011-05-06 | Senseor | SURFACE WAVE PASSIVE SENSOR COMPRISING AN INTEGRATED ANTENNA AND MEDICAL APPLICATIONS USING THIS TYPE OF PASSIVE SENSOR |
| US7730772B2 (en) * | 2007-12-28 | 2010-06-08 | Honeywell International Inc. | Surface acoustic wave sensor and package |
-
2019
- 2019-01-24 CN CN201910067143.7A patent/CN109708774B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56162199A (en) * | 1980-04-16 | 1981-12-12 | Sippican Corp | Temperature measuring system |
| CN103414006A (en) * | 2013-08-13 | 2013-11-27 | 常州智梭传感科技有限公司 | Ultra-thin passive wireless acoustic surface wave sensor |
| CN105415987A (en) * | 2014-09-19 | 2016-03-23 | 软控股份有限公司 | Passive surface acoustic wave sensing device and intelligent tire |
| CN204214571U (en) * | 2014-11-17 | 2015-03-18 | 王东方 | For the passive and wireless temperature monitoring collar of metal bearing |
| CN205407084U (en) * | 2016-03-01 | 2016-07-27 | 北京中讯四方科技股份有限公司 | Looped netowrk is connecting screw rod temperature sensor's mounting structure cashier's office in a shop |
| CN108692824A (en) * | 2018-03-21 | 2018-10-23 | 中电科技德清华莹电子有限公司 | A kind of passive wireless acoustic surface wave temperature sensor |
| CN109186808A (en) * | 2018-10-31 | 2019-01-11 | 劭行（苏州）智能科技有限公司 | The temperature wireless sensor-based system of ring network cabinet |
| CN209459790U (en) * | 2019-01-24 | 2019-10-01 | 上海置信电气股份有限公司 | A kind of passive wireless temperature sensor of gasket construction |
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| CN109708774A (en) | 2019-05-03 |
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Effective date of registration: 20200811 Address after: No. 588-590, Tianshan West Road, Changning District, Shanghai, 200335 Applicant after: Shanghai Zhixin Intelligent Electric Co.,Ltd. Applicant after: OFWELT (SUZHOU) TECHNOLOGIES Co.,Ltd. Address before: 200030 Hongqiao Road, Changning District, Shanghai 2239 Applicant before: SHANGHAI ZHIXIN ELEC Co.,Ltd. Applicant before: OFWELT (SUZHOU) TECHNOLOGIES Co.,Ltd. |
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