CN202333562U - Switch apparatus for online measuring of temperature inside cabinet - Google Patents
Switch apparatus for online measuring of temperature inside cabinet Download PDFInfo
- Publication number
- CN202333562U CN202333562U CN2011204753242U CN201120475324U CN202333562U CN 202333562 U CN202333562 U CN 202333562U CN 2011204753242 U CN2011204753242 U CN 2011204753242U CN 201120475324 U CN201120475324 U CN 201120475324U CN 202333562 U CN202333562 U CN 202333562U
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- temperature
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- cabinet
- fpc
- switchgear
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Abstract
The utility model discloses a switch apparatus for online measuring the temperature inside a cabinet, which comprises a cabinet body, wherein a temperature measurement unit is arranged in the cabinet body, a flexible circuit board unit is also arranged in the cabinet body, and the signal which is acquired by the temperature measurement unit is sent out and output by the flexible circuit board unit; the switch apparatus further comprises a power generation unit, and the power generation unit is respectively and electrically connected with the temperature measurement unit and the flexible circuit board unit; and all the units are installed on a contact. The switch apparatus for online measuring the temperature inside the cabinet has the characteristics of stability for operation, low construction cost, simplicity for assembly and good temperature measurement effect.
Description
Technical field
The utility model belongs to the electric equipment technical field, specifically, but relates to a kind of switchgear of on-line measurement in-cabinet temperature.
Background technology
Modern society is high to the dependence of electric energy, and the area that electricity consumption density is big more is high more to the dependence of electricity, thereby the reliability of power supply unit has been proposed increasingly high requirement.As the handcart-type switch equipment that generally uses at present owing to adopt plug to connect between circuit breaker and the switchgear; When dolly and switchgear because of making, transport and install the contact loose contact that all will cause such as bad; Contact resistance increases, and it is too high contact temperature rise to occur, even burns power failure; These phenomenons are particularly outstanding on high-current switch equipment such as incoming line cabinet, and influence greatly.Problems such as surface oxidation burn into fastening bolt often appears in the electric power system switchgear in the long-time running process loosening, and contact and bus row junction are aging cause apparatus overheat even serious accident occurs.It is thus clear that for the operation of switchgear, it is crucial in time understanding its internal temperature situation of change., owing in the switchgear exposed high pressure is arranged, the space sealing is narrow and small, can't carry out manual work inspection thermometric, and traditional thermometric mode all can't address this problem effectively.
Existing switchgear contact temperature measurement mainly contains following several kinds of modes: (1) common thermometric: thermometric modes such as conventional thermocouple, thermal resistance, semiconductor temperature sensor, need the plain conductor transmission signals, and insulation property can not guarantee.
(2) infrared measurement of temperature: infrared thermoviewer can't see through the cabinet door and measure internal unit, must close the cabinet door during switchgear operation, causes infrared mode to measure.
(3) optical fiber temperature-measurement: optical fiber type temperature temperature measurer adopts optical fiber to transmit signal, and its temperature sensor is installed in the surface of charged object, is connected with optical fiber between temperature measurer and temperature sensor.Optical fiber has easy to break, easily broken, non-refractory.Be prone to make insulating properties to reduce behind the accumulation dust, and the wiring difficulty is bigger in cabinet, cost is high.
(4) temperature measuring ring: limited because of handcart type breaker contact space, measurement ring overall dimension is big, difficult installation.The contact of breaker size of different model specification is different in addition, and the versatility of installing ring is not high, has brought significant limitation for its installation and application.The temperature measuring ring power supply takes current transformer from bus, to ask electric current, but exists bus current instability, overvoltage and overcurrent can bring shortcomings such as damage by power supply to getting, and therefore needs a large amount of voltage stabilizing and safeguard measure.
The utility model content
But the purpose of the utility model provides a kind of switchgear that uses stable on-line measurement in-cabinet temperature.
For this reason; The technical scheme that the utility model adopted is such: but a kind of switchgear of on-line measurement in-cabinet temperature; Comprise cabinet; Be provided with temperature measurement unit in the cabinet, also be provided with the FPC unit in the cabinet, the signal that temperature measurement unit is gathered is through the emission output of FPC unit; It also comprises generator unit, is electrically connected with temperature measurement unit and FPC unit respectively; Above-mentioned each unit is installed on the contact.
Said temperature measurement unit is made up of housing and temperature sensor, and housing adopts stainless steel material to process, and has the advantage that amount of stored heat is little, the temperature time-delay is little; The sealant that also is provided with between housing and the temperature sensor, sealant adopt the fluid sealant with good heat conductive performance to process; Peace is connected to a lead-in wire on the said temperature sensor, through this lead-in wire output acquired signal.
Said FPC unit is made up of FPC and wireless transmit chip, and the wireless transmit chip is installed on the FPC, and the signal that temperature measurement unit is gathered is through wireless transmit chip emission output.
Said generator unit is made up of heat source tube, thermo-electric generation chip and aluminium radiator, and the thermo-electric generation chip is electrically connected with temperature sensor, wireless transmit chip respectively; Also have thermal insulation layer between heat source tube and the aluminium radiator, transducer is housed in the thermal insulation layer.
The operation principle of the utility model is such: the heat that the thermo-electric generation chip utilizes contact to produce generates electricity, respectively to temperature measurement unit and FPC unit output electric energy; Temperature measurement unit utilizes temperature sensor that the temperature information of contact is gathered, and through lead-in wire the signal of being gathered is sent into the wireless transmit chip, and the wireless transmit chip is gone out the temperature signal wireless transmission after chip internal is handled.
Compared with prior art, the utlity model has working stability, cost is low, assembling is simple, thermometric good effectiveness, particularly FPC arbitrarily bending be installed on the contact of random appearance, can improve the use generality of equipment greatly; And; The required electric energy of temperature measurement unit and FPC cell operation is all supplied with by generator unit; So temperature measurement unit and FPC unit are in the process of work; Can not receive the influence of bus current instability, overvoltage and overcurrent, thereby can strengthen the stability in use of equipment greatly, more accurate and effective contact temperature information can be provided.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed description.
Fig. 1 is the present embodiment structural representation.
Fig. 2 is the temperature measurement unit structural representation.
Fig. 3 is the structural representation of generator unit.
Fig. 4 is a FPC cellular construction sketch map.
Embodiment
Referring to accompanying drawing.Present embodiment comprises cabinet, is provided with temperature measurement unit 1, generator unit 4 and FPC unit in the cabinet, and three unit are installed on the contact 14.
Said temperature measurement unit 1 is made up of a housing 3 and a temperature sensor 6, and housing 3 adopts stainless steel material to process, and has the sealant layer 7 of good heat conductive performance between housing 3 and the temperature sensor 6; Temperature sensor 6 is connected with the FPC unit by lead-in wire 8, and exports acquired signal through lead-in wire 8.
Generator unit 4 is made up of a heat source tube 13, thermo-electric generation chip 12 and aluminium radiator 11, and thermo-electric generation chip 12 is electrically connected with temperature measurement unit 1, FPC unit respectively; Have thermal insulation layer 10 between heat source tube 13 and the aluminium radiator 11, transducer 9 is housed in the thermal insulation layer 10, transducer 9 can be received the outside with the output of Voltage stabilizing module through lead.
The FPC unit is made up of FPC 2, wireless transmit chip and peripheral circuit, and FPC 2 is fixed on the contact 14 by heat-shrinkable T bush 5; The wireless transmit chip is installed on the FPC 2, is linked to each other with temperature sensor 6 by lead-in wire 8.
The operation principle of present embodiment is such: the heat that thermo-electric generation chip 12 utilizes contact 14 to produce generates electricity, respectively to temperature measurement unit 1 and FPC unit output electric energy; Temperature measurement unit 1 utilizes the temperature information of 6 pairs of contacts of temperature sensor to gather, and 8 the signal of being gathered is sent into the wireless transmit chip through going between, and the wireless transmit chip is gone out the temperature signal wireless transmission after chip internal is handled.
Claims (6)
1. but the switchgear of an on-line measurement in-cabinet temperature comprises cabinet, is provided with temperature measurement unit in the cabinet, it is characterized in that: also be provided with the FPC unit in the cabinet, the signal that temperature measurement unit is gathered is through the emission output of FPC unit; It also comprises generator unit, is electrically connected with temperature measurement unit and FPC unit respectively; Above-mentioned each unit is installed on the contact.
2. but the switchgear of on-line measurement in-cabinet temperature as claimed in claim 1; It is characterized in that: said temperature measurement unit is made up of housing and temperature sensor; Also be provided with sealant between housing and the temperature sensor; Peace is connected to a lead-in wire on the said temperature sensor, through this lead-in wire output acquired signal.
3. but like the switchgear of claim 1 or 2 described on-line measurement in-cabinet temperatures; It is characterized in that: said FPC unit is made up of FPC and wireless transmit chip; The wireless transmit chip is installed on the FPC, and the signal that temperature measurement unit is gathered is through wireless transmit chip emission output.
4. but the switchgear of on-line measurement in-cabinet temperature as claimed in claim 3; It is characterized in that: said generator unit is made up of heat source tube, thermo-electric generation chip and aluminium radiator, and the thermo-electric generation chip is electrically connected with temperature sensor, wireless transmit chip respectively; Also have thermal insulation layer between heat source tube and the aluminium radiator, transducer is housed in the thermal insulation layer.
5. but the switchgear of on-line measurement in-cabinet temperature as claimed in claim 2 is characterized in that: housing adopts stainless steel material to process.
6. but the switchgear of on-line measurement in-cabinet temperature as claimed in claim 2 is characterized in that: sealant adopts the fluid sealant with good heat conductive performance to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204753242U CN202333562U (en) | 2011-11-25 | 2011-11-25 | Switch apparatus for online measuring of temperature inside cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204753242U CN202333562U (en) | 2011-11-25 | 2011-11-25 | Switch apparatus for online measuring of temperature inside cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202333562U true CN202333562U (en) | 2012-07-11 |
Family
ID=46445529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204753242U Expired - Fee Related CN202333562U (en) | 2011-11-25 | 2011-11-25 | Switch apparatus for online measuring of temperature inside cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202333562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403666A (en) * | 2011-11-25 | 2012-04-04 | 浙江开关厂有限公司 | Switchgear capable of measuring temperatures in cabinet on line |
-
2011
- 2011-11-25 CN CN2011204753242U patent/CN202333562U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403666A (en) * | 2011-11-25 | 2012-04-04 | 浙江开关厂有限公司 | Switchgear capable of measuring temperatures in cabinet on line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120711 Termination date: 20171125 |