CN105953936B - A kind of computer room temperature detection device for electric power dispatching system - Google Patents

A kind of computer room temperature detection device for electric power dispatching system Download PDF

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Publication number
CN105953936B
CN105953936B CN201610350624.5A CN201610350624A CN105953936B CN 105953936 B CN105953936 B CN 105953936B CN 201610350624 A CN201610350624 A CN 201610350624A CN 105953936 B CN105953936 B CN 105953936B
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China
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side metal
metal piece
temperature sensor
cold side
amplifier
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CN105953936A (en
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高冰
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Hengshui Power Supply Co of State Grid Hebei Electric Power Co Ltd
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Hengshui Power Supply Co of State Grid Hebei Electric Power Co Ltd
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Priority to CN201610350624.5A priority Critical patent/CN105953936B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/02Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00Thermometers specially adapted for specific purposes

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

The invention discloses a kind of computer room temperature detection device for electric power dispatching system, including several temperature sensors being fixed in computer room, the temperature sensor includes a kind of temperature sensor, the two class temperature sensors in the arrangement of a kind of temperature sensor exterior annular, and the three classes temperature sensor between a kind of temperature sensor and two class temperature sensors, a kind of temperature sensor and two class temperature sensors are connected by three classes temperature sensor;A kind of temperature sensor includes the first casing, the first hot side metal piece and the first cold side metal piece are provided with first casing, the link position of first hot side metal piece and the first cold side metal piece is provided with the first cushion chamber, the connecting pin of first hot side metal piece is provided with the first curved portion, and the both sides of the first curved portion are provided with socket.The present invention can solve the deficiencies in the prior art, realize the purpose that thermocouple carries out accurate thermometric in computer room, and equipment cost is low.

Description

A kind of computer room temperature detection device for electric power dispatching system
Technical field
The present invention relates to a kind of power scheduling auxiliary device, especially a kind of computer room temperature for electric power dispatching system is examined Survey device.
Background technology
In electric power dispatching system, computer room is the core position of whole system, and the information transmission of whole system will be passed through Computer room is completed.The various kinds of equipment of installation is for the more demanding of temperature in computer room, so will set temperature detection in computer room Device.In existing temperature-detecting device, it is high that temperature detecting precision is carried out using RTD, but expensive, large area use into This height;It is low using thermocouple cost, but its measurement accuracy is poor, can not meet will for the higher control of temperature in computer room Ask.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of computer room temperature detection device for electric power dispatching system, energy The deficiencies in the prior art are enough solved, improve the measurement accuracy of thermocouple temperature measurement system, it is achieved thereby that thermocouple is in computer room Carry out the purpose of accurate thermometric.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
A kind of computer room temperature detection device for electric power dispatching system, including several temperature being fixed in computer room pass Sensor, the temperature sensor include a kind of temperature sensor, the two class temperature in the arrangement of a kind of temperature sensor exterior annular Sensor, and the three classes temperature sensor between a kind of temperature sensor and two class temperature sensors, a kind of temperature pass Sensor and two class temperature sensors are connected by three classes temperature sensor;A kind of temperature sensor includes the first casing, the first machine The first hot side metal piece and the first cold side metal piece, the connection of the first hot side metal piece and the first cold side metal piece are provided with shell Position is provided with the first cushion chamber, and the connecting pin of the first hot side metal piece is provided with the first curved portion, the both sides of the first curved portion Socket is provided with, the connecting pin of the first cold side metal piece is plugged in socket and is welded with the first curved portion;Two class temperature sensing Device includes the second casing, and the second hot side metal piece and the second cold side metal piece, the second hot side metal piece are provided with the second casing The link position of second cold side metal piece is provided with the second cushion chamber, the connecting pin of the second hot side metal piece is provided with spherical bag Portion is wrapped up in, the connecting pin of the second cold side metal piece is provided with hollow ball, and hollow ball is arranged in spherical parcel;Three classes temperature Sensor includes the 3rd casing, and the 3rd hot side metal piece and the 3rd cold side metal piece, the 3rd hot junction gold are provided with the 3rd casing The link position for belonging to piece and the 3rd cold side metal piece is provided with the 3rd cushion chamber, the 3rd hot side metal piece and the 3rd cold side metal piece Between connected by thermometal piece;3rd hot side metal piece is connected with the first cold side metal piece, the 3rd cold side metal piece and Two cold side metal pieces connect.
As a preferred technical solution of the present invention, sponge filled layer is provided with first cushion chamber, sponge is filled out The insulation rubber sleeve that is internally provided with of layer is filled, the surface of the first cushion chamber is provided with the first venthole, the surface of insulation rubber sleeve It is provided with the second venthole.
As a preferred technical solution of the present invention, first venthole is set perpendicular to the first cushion chamber, and second Venthole is symmetrical arranged using the first venthole as symmetry axis, and the angle between the axis of the second venthole and the first venthole is 20°。
As a preferred technical solution of the present invention, the internal diameter of first venthole is gradual from air inlet to gas outlet Diminish, the side wall of the first venthole is provided with shunt valve, and shunt valve is located at the interface of first venthole gas outlet one end towards the Air inlet one end of one venthole is obliquely installed, and shunt valve is located at the interface and the first venthole of first venthole air inlet one end Axis be vertically arranged.
As a preferred technical solution of the present invention, the surface of second cushion chamber is provided with the 3rd venthole, empty Heart ball interior is provided with elastic sheet metal, and the both ends of elastic sheet metal are fixed on hollow ball inner wall by rubber pad, ball The inner wall of shape parcel is evenly arranged with arc contact chip, and arc contact chip is closely crimped with the outer wall of hollow ball.
As a preferred technical solution of the present invention, thermal insulation layer is provided with the outside of the 3rd cushion chamber, the 3rd is slow That rushes chamber is internally provided with heater.
As a preferred technical solution of the present invention, the 3rd hot side metal piece is respectively connected to by first resistor The base stage of first triode and the second triode, the collector of the first triode are connected to high level by second resistance, and first The emitter of triode is connected to the emitter of the second triode, and the collector of the second triode is by the first capacity earth, and One capacitance both ends are parallel with bypass, and bypass includes the first inductance of series connection and 3rd resistor, the emitter of the first triode pass through 4th resistance eutral grounding, the emitter of the first triode are connected to the first cold side metal piece.
As a preferred technical solution of the present invention, the 3rd cold side metal piece is connected to first by the 5th resistance The positive input of amplifier, the reverse input end of the first amplifier are led to by the 6th resistance eutral grounding, the reverse input end of the first amplifier The output terminal that the 7th resistance is connected to the first amplifier is crossed, the output terminal of the first amplifier is connected to the second cold end gold by the 8th resistance Belong to piece, the second cold side metal piece is connected to the positive input of the second amplifier, and the positive input of the second amplifier passes through the 9th electricity Resistance ground connection, the output terminal of the reverse input end of the second amplifier by the second capacitance connection to the second amplifier, the output of the second amplifier End is connected to the positive input of the first amplifier by the tenth resistance.
It is using beneficial effect caused by above-mentioned technical proposal:The present invention uses three kinds of thermocouple temperature sensor groups Into the network structure of temperature survey, comprehensive measurement for whole computer room temperature is realized.A kind of temperature sensor is used for one The temperature in thermometric region measures on a wide range of scale, and two class temperature sensors are used for different positions in a thermometric region The actual temp put carries out highly sensitive measurement, and by three classes temperature sensor to a kind of temperature sensor and two class temperature Sensor compensates, and realizes the mesh for changing according to the thermometric of environment temperature and two kinds of temperature sensors and being compensated into Mobile state 's.Whole thermometric framework compensate for the defects of single thermocouple temperature sensor measurement result is inaccurate, realize low cost, height The temperature survey of precision.
Brief description of the drawings
Fig. 1 is the structure chart of an embodiment of the invention.
Fig. 2 is the structure chart of a kind of temperature sensor in an embodiment of the invention.
Fig. 3 is the structure chart of two class temperature sensors in an embodiment of the invention.
Fig. 4 is the structure chart of arc contact chip and hollow ball contact surface in an embodiment of the invention.
Fig. 5 is the structure chart of three classes temperature sensor in an embodiment of the invention.
Fig. 6 is the 3rd hot side metal piece and the circuit of the first cold side metal piece connection in an embodiment of the invention Figure.
Fig. 7 is the 3rd cold side metal piece and the circuit of the second cold side metal piece connection in an embodiment of the invention Figure.
In figure:1st, a kind of temperature sensor;2nd, two class temperature sensor;3rd, three classes temperature sensor;4th, the first casing;5、 First hot side metal piece;6th, the first cold side metal piece;7th, the first cushion chamber;8th, the first curved portion;9th, socket;10th, the second casing; 11st, the second hot side metal piece;12nd, the second cold side metal piece;13rd, the second cushion chamber;14th, spherical parcel;15th, hollow ball; 16th, the 3rd hot side metal piece;17th, the 3rd cold side metal piece;18th, the 3rd cushion chamber;19th, thermometal piece;20th, sponge is filled Layer;21st, insulation rubber sleeve;22nd, the first venthole;23rd, the second venthole;24th, the 3rd venthole;25th, elastic sheet metal;26、 Rubber pad;27th, arc contact chip;28th, thermal insulation layer;29th, heater;30th, rigid support bar;31st, elastic supporting bar;32nd, it is netted Portion;33rd, the 3rd casing;34th, shunt valve;R1, first resistor;R2, second resistance;R3,3rd resistor;R4, the 4th resistance;R5、 5th resistance;R6, the 6th resistance;R7, the 7th resistance;R8, the 8th resistance;R9, the 9th resistance;R10, the tenth resistance;C1, first Capacitance;C2, the second capacitance;L1, the first inductance;Q1, the first triode;Q2, the second triode;A1, the first amplifier;A2, second Amplifier;VCC, high level.
Embodiment
The standardized element used in the present invention can commercially, and shaped piece is according to specification and attached drawing Record can carry out customized, and the specific connection mode of each part is using bolt ripe in the prior art, rivet, weldering The conventional means such as connect, paste, this will not be detailed here.
Referring to attached drawing 1-7, this specific embodiment includes several temperature sensors being fixed in computer room, and the temperature passes Sensor includes a kind of temperature sensor 1, the two class temperature sensors 2, Yi Jiwei in the arrangement of a kind of 1 exterior annular of temperature sensor Three classes temperature sensor 3 between a kind of 1 and two class temperature sensor 2 of temperature sensor, a kind of 1 and two class of temperature sensor Temperature sensor 2 is connected by three classes temperature sensor 3;A kind of temperature sensor 1 includes the first casing 4, is set in the first casing 4 It is equipped with the connection position of the first hot side metal piece 5 and the first cold side metal piece 6, the first hot side metal piece 5 and the first cold side metal piece 6 Installing and be equipped with the first cushion chamber 7, the connecting pin of the first hot side metal piece 5 is provided with the first curved portion 8, and the two of the first curved portion 8 Side is provided with socket 9, and the connecting pin of the first cold side metal piece 6 is plugged in socket 9 and is welded with the first curved portion 8;Two class temperature Degree sensor 2 includes the second casing 10, and the second hot side metal piece 11 and the second cold side metal piece 12 are provided with the second casing 10, The link position of second hot side metal piece 11 and the second cold side metal piece 12 is provided with the second cushion chamber 13, the second hot side metal piece 11 connecting pin is provided with spherical parcel 14, and the connecting pin of the second cold side metal piece 12 is provided with hollow ball 15, hollow ball Body 15 is arranged in spherical parcel 14;Three classes temperature sensor 3 includes the 3rd casing 33, and the 3rd is provided with the 3rd casing 33 The connection position of 16 and the 3rd cold side metal piece 17 of hot side metal piece, the 3rd hot side metal piece 16 and the 3rd cold side metal piece 17 installs The 3rd cushion chamber 18 is equipped with, is connected between the 3rd hot side metal piece 16 and the 3rd cold side metal piece 17 by thermometal piece 19; 3rd hot side metal piece 16 is connected with the first cold side metal piece 6, and the 3rd cold side metal piece 17 is connected with the second cold side metal piece 12. It is provided with sponge filled layer 20 in first cushion chamber 7, sponge filled layer 20 is internally provided with insulation rubber sleeve 21, and first The surface of cushion chamber 7 is provided with the first venthole 22, and the surface of insulation rubber sleeve 21 is provided with the second venthole 23.Described first Venthole 22 is set perpendicular to the first cushion chamber 7, and the second venthole 23 is symmetrical arranged with the first venthole 22 for symmetry axis, and second Angle between the axis of 23 and first venthole 22 of venthole is 20 °.The internal diameter of first venthole 22 from air inlet to Gas outlet tapers into, and the side wall of the first venthole 22 is provided with shunt valve 34, and shunt valve 34 is located at 22 outlet of the first venthole Air inlet one end of the interface towards the first venthole 22 of mouth one end is obliquely installed, and shunt valve 34 is located at 22 air inlet of the first venthole The axis of the interface and the first venthole 22 of mouth one end is vertically arranged.The surface of second cushion chamber 13 is provided with the 3rd ventilation Hole 24, hollow ball 15 are internally provided with elastic sheet metal 25, and the both ends of elastic sheet metal 25 are fixed on sky by rubber pad 26 On 15 inner wall of bulbus cordis body, the inner wall of spherical parcel 14 is evenly arranged with arc contact chip 27, arc contact chip 27 and hollow ball The outer wall of body 15 closely crimps.The outside of 3rd cushion chamber 18 is provided with thermal insulation layer 28, and the inside of the 3rd cushion chamber 18 is set It is equipped with heater 29.The 3rd hot side metal piece 16 is respectively connected to the first triode Q1 and the two or three by first resistor R1 The base stage of pole pipe Q2, the collector of the first triode Q1 are connected to high level VCC by second resistance R2, the first triode Q1's Emitter is connected to the emitter of the second triode Q2, and the collector of the second triode Q2 is grounded by the first capacitance C1, and first Capacitance C1 both ends are parallel with bypass, and bypass includes the first inductance L1 and 3rd resistor R3 of series connection, the transmitting of the first triode Q1 Pole is grounded by the 4th resistance R4, and the emitter of the first triode Q1 is connected to the first cold side metal piece 6.The 3rd cold end gold Belong to piece 17 and be connected to the positive input of the first amplifier A1 by the 5th resistance R5, the reverse input end of the first amplifier A1 passes through the Six resistance R6 are grounded, and the reverse input end of the first amplifier A1 is connected to the output terminal of the first amplifier A1 by the 7th resistance R7, the The output terminal of one amplifier A1 is connected to the second cold side metal piece 12 by the 8th resistance R8, and the second cold side metal piece 12 is connected to The positive input of two amplifier A2, the positive input of the second amplifier A2 are grounded by the 9th resistance R9, and the second amplifier A2's is anti- The output terminal of the second amplifier A2 is connected to by the second capacitance C2 to input terminal, the output terminal of the second amplifier A2 passes through the tenth resistance R10 is connected to the positive input of the first amplifier A1.
In addition, rigid support bar 30 and elastic supporting bar 31 are provided between arc contact chip 27 and spherical parcel 14, The spacing of one end that rigid support bar 30 and elastic supporting bar 31 are contacted with arc contact chip 27 is more than rigid support bar 30 and bullet The spacing of one end that property supporting rod 31 is contacted with spherical parcel 14, the angle between rigid support bar 30 and elastic supporting bar 31 For 35 °, 27 outer surface of arc contact chip of the lower section of elastic supporting bar 31 is provided with reticular part 32.With the change of temperature, The elastic deformation coefficient of elastic supporting bar 31 and elastic sheet metal 25 can be with changing, so as to fulfill arc contact chip 27 Change synchronous with 15 contact surface of hollow ball, the change of reticular part 32 and the contact surface of hollow ball 15, which can be substantially change, to be connect The size of electric shock resistance, compensates, raising temperature measurement accuracy so as to fulfill quick dynamic of the two class temperature sensors for temperature.
Thermometal piece 19 can use 50Ni-10Co-Fe temperature sensitive alloys common in the art.But by hair The further research of a person of good sense, finds to use following temperature sensitive alloy, the linearity that it is compensated is more uniform.
Above-mentioned temperature sensitive alloy includes:Ag, 2.5wt%'s of Fe, 1.35wt% of Y, 12wt% of Ni, 3.5wt% of 23.5wt% The Pb of the Si of W, 4wt% of Al, 7.8wt% of Sn, 25.5wt% of Au, 5.7wt%, 19wt%, surplus Cu.
In terms of the arrangement of temperature sensor, the spacing of a kind of temperature sensor and two class temperature sensors is maintained at 3 meters More than, 5 two class temperature sensors are at least set on the outside of each one kind sensor, two class temperature sensors do not know particular number Determined according to thermometric area, the average thermometric area of each two classes temperature sensor is not more than 1.5 square metres.
It is acquired to temperature measurement signal in processing procedure, the measurement result using two class temperature sensors is intended Close, form the temperature curve distribution circle of equal altitudes around a kind of temperature sensor.Several sample points on equal pitch contour are chosen, will be taken Temperature value on sampling point carries out linear fit, and the result of fitting and the measurement data on a kind of temperature sensor are carried out pair Than, the measurement data of a kind of temperature sensor is adjusted to the deviation distance minimum with each fitting result, while will a kind of temperature The adjustment of sensing data is spent as deviation ratio, and processing is weighted to the measurement result of two class data pick-ups.
The present invention can carry out flexible arrangement according to the computer room of different area, and cost is low, and detection accuracy is high.The present invention is After being improved to thermocouple temperature sensor of the prior art, form above-mentioned temperature measuring equipment, thermocouple it is basic Structure and operation principle belong to common knowledge, and this will not be detailed here.
Foregoing description only proposes as the enforceable technical solution of the present invention, not as to its technical solution single in itself Restrictive condition.

Claims (5)

1. a kind of computer room temperature detection device for electric power dispatching system, including several temperature sensing being fixed in computer room Device, it is characterised in that:The temperature sensor includes a kind of temperature sensor(1), in a kind of temperature sensor(1)Exterior annular Two class temperature sensors of arrangement(2), and positioned at a kind of temperature sensor(1)With two class temperature sensors(2)Between three Class temperature sensor(3), a kind of temperature sensor(1)With two class temperature sensors(2)Pass through three classes temperature sensor(3)Even Connect;A kind of temperature sensor(1)Including the first casing(4), the first casing(4)Inside it is provided with the first hot side metal piece(5)With One cold side metal piece(6), the first hot side metal piece(5)With the first cold side metal piece(6)Link position be provided with the first buffering Chamber(7), the first hot side metal piece(5)Connecting pin be provided with the first curved portion(8), the first curved portion(8)Both sides be provided with Socket(9), the first cold side metal piece(6)Connecting pin be plugged on socket(9)It is interior and with the first curved portion(8)Welding;Two class temperature Spend sensor(2)Including the second casing(10), the second casing(10)Inside it is provided with the second hot side metal piece(11)With the second cold end Sheet metal(12), the second hot side metal piece(11)With the second cold side metal piece(12)Link position be provided with the second cushion chamber (13), the second hot side metal piece(11)Connecting pin be provided with spherical parcel(14), the second cold side metal piece(12)Connection End is provided with hollow ball(15), hollow ball(15)It is arranged on spherical parcel(14)It is interior;Three classes temperature sensor(3)Including 3rd casing(33), the 3rd casing(33)Inside it is provided with the 3rd hot side metal piece(16)With the 3rd cold side metal piece(17), the 3rd Hot side metal piece(16)With the 3rd cold side metal piece(17)Link position be provided with the 3rd cushion chamber(18), the 3rd hot side metal Piece(16)With the 3rd cold side metal piece(17)Between pass through thermometal piece(19)Connection;3rd hot side metal piece(16)With first Cold side metal piece(6)Connection, the 3rd cold side metal piece(17)With the second cold side metal piece(12)Connection;
First cushion chamber(7)Inside it is provided with sponge filled layer(20), sponge filled layer(20)Be internally provided with insulation rubber Gum cover(21), the first cushion chamber(7)Surface be provided with the first venthole(22), insulation rubber sleeve(21)Surface be provided with Two ventholes(23);
Second cushion chamber(13)Surface be provided with the 3rd venthole(24), hollow ball(15)It is internally provided with elastic gold Belong to piece(25), elastic sheet metal(25)Both ends pass through rubber pad(26)It is fixed on hollow ball(15)On inner wall, spherical parcel Portion(14)Inner wall be evenly arranged with arc contact chip(27), arc contact chip(27)With hollow ball(15)Outer wall closely press Connect.
2. the computer room temperature detection device according to claim 1 for electric power dispatching system, it is characterised in that:Described One venthole(22)Internal diameter tapered into from air inlet to gas outlet, the first venthole(22)Side wall be provided with shunt valve (34), shunt valve(34)Positioned at the first venthole(22)Interface first venthole of direction of gas outlet one end(22)Air inlet one End is obliquely installed, shunt valve(34)Positioned at the first venthole(22)The interface of air inlet one end and the first venthole(22)Axis It is vertically arranged.
3. the computer room temperature detection device according to claim 1 for electric power dispatching system, it is characterised in that:Described Three cushion chambers(18)Outside be provided with thermal insulation layer(28), the 3rd cushion chamber(18)Be internally provided with heater(29).
4. the computer room temperature detection device according to claim 1 for electric power dispatching system, it is characterised in that:Described Three hot side metal pieces(16)Pass through first resistor(R1)It is respectively connected to the first triode(Q1)With the second triode(Q2)Base Pole, the first triode(Q1)Collector pass through second resistance(R2)It is connected to high level(VCC), the first triode(Q1)Hair Emitter-base bandgap grading is connected to the second triode(Q2)Emitter, the second triode(Q2)Collector pass through the first capacitance(C1)Ground connection, First capacitance(C1)Both ends are parallel with bypass, and bypass includes the first inductance of series connection(L1)And 3rd resistor(R3), the one or three pole Pipe(Q1)Emitter pass through the 4th resistance(R4)Ground connection, the first triode(Q1)Emitter be connected to the first cold side metal piece (6).
5. the computer room temperature detection device according to claim 1 for electric power dispatching system, it is characterised in that:Described Three cold side metal pieces(17)Pass through the 5th resistance(R5)It is connected to the first amplifier(A1)Positive input, the first amplifier(A1)'s Reverse input end passes through the 6th resistance(R6)Ground connection, the first amplifier(A1)Reverse input end pass through the 7th resistance(R7)It is connected to First amplifier(A1)Output terminal, the first amplifier(A1)Output terminal pass through the 8th resistance(R8)It is connected to the second cold side metal piece (12), the second cold side metal piece(12)It is connected to the second amplifier(A2)Positive input, the second amplifier(A2)Positive input End passes through the 9th resistance(R9)Ground connection, the second amplifier(A2)Reverse input end pass through the second capacitance(C2)It is connected to the second amplifier (A2)Output terminal, the second amplifier(A2)Output terminal pass through the tenth resistance(R10)It is connected to the first amplifier(A1)It is positive defeated Enter end.
CN201610350624.5A 2016-05-25 2016-05-25 A kind of computer room temperature detection device for electric power dispatching system Active CN105953936B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0285120A2 (en) * 1987-03-31 1988-10-05 Omron Corporation Temperature regulator
CN102538993A (en) * 2012-02-10 2012-07-04 浙江大学 Temperature measuring device of machine tool
CN103233966A (en) * 2012-12-21 2013-08-07 珠海一多监测科技有限公司 Intelligent screw bolt with temperature measuring function
CN204027708U (en) * 2014-08-26 2014-12-17 国家电网公司 Power equipment conductor joint heating warning device
CN204154415U (en) * 2014-10-30 2015-02-11 开特电子云梦有限公司 A kind of novel outdoor temperature sensor
CN205785561U (en) * 2016-05-25 2016-12-07 国网河北省电力公司衡水供电分公司 A kind of computer room temperature for electric power dispatching system detects device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0285120A2 (en) * 1987-03-31 1988-10-05 Omron Corporation Temperature regulator
CN102538993A (en) * 2012-02-10 2012-07-04 浙江大学 Temperature measuring device of machine tool
CN103233966A (en) * 2012-12-21 2013-08-07 珠海一多监测科技有限公司 Intelligent screw bolt with temperature measuring function
CN204027708U (en) * 2014-08-26 2014-12-17 国家电网公司 Power equipment conductor joint heating warning device
CN204154415U (en) * 2014-10-30 2015-02-11 开特电子云梦有限公司 A kind of novel outdoor temperature sensor
CN205785561U (en) * 2016-05-25 2016-12-07 国网河北省电力公司衡水供电分公司 A kind of computer room temperature for electric power dispatching system detects device

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