CN216433301U - Wireless temperature measuring device for circuit breaker - Google Patents
Wireless temperature measuring device for circuit breaker Download PDFInfo
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- CN216433301U CN216433301U CN202122839046.0U CN202122839046U CN216433301U CN 216433301 U CN216433301 U CN 216433301U CN 202122839046 U CN202122839046 U CN 202122839046U CN 216433301 U CN216433301 U CN 216433301U
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- circuit breaker
- temperature
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- 238000009529 body temperature measurement Methods 0.000 claims abstract description 33
- 239000004020 conductor Substances 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 19
- 230000006698 induction Effects 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003063 flame retardant Substances 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 241000722921 Tulipa gesneriana Species 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
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- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model relates to a wireless temperature measuring device of circuit breaker, including RFID temperature measurement label (120) and antenna (130), antenna (130) set up with RFID temperature measurement label (120) can realize wireless communication' S position, RFID temperature measurement label (120) set up on the circuit breaker plum blossom contact (110) a plurality of contact fingers specially touch indicate (112), specially touch indicate (112) with other ordinary contact indicate the difference of (111) lie in that it is slightly less than other ordinary contact indicate (111) and the area of contact S1 of waiting to meet the conductor with other ordinary contact the area of contact S2. The utility model discloses a special contact of special in the plum blossom contact is pointed to on reduce with the area of contact of waiting to connect the conductor, forms local highest temperature region to note the real-time temperature in this local highest temperature region through RFID temperature measurement label, can master the trend of the highest temperature of circuit breaker contact along with time, thereby the control to whole network is convenient.
Description
Technical Field
The utility model relates to a high tension switchgear's contact temperature measurement specifically is a temperature measuring device that circuit breaker is wireless.
Background
The high-voltage circuit breaker is mainly used for controlling and protecting a power system, can control partial power equipment or lines to be put into or taken out of operation according to the operation requirements of a power grid, and can also quickly cut off a fault part from the power grid when the power equipment or the lines have faults, so that the normal operation of the fault-free part in the power grid is ensured.
The plum blossom contact on the high voltage circuit breaker leads to overheated initiation trouble because of the contact resistance increase often, if can foresee the trouble that generates heat, just can protect the circuit breaker, prolongs its working life. There are various detection methods, for example: 1. wired watchband type temperature measurement is adopted, namely a temperature sensor is bound on the outer surface of a contact arm, a built-in battery is used for supplying power, and data transmission is carried out in a wired mode; 2. wireless sleeve type temperature measurement is adopted, namely a temperature sensor, induction electricity taking and a wireless communication module are made into an annular sleeve and sleeved on the outer surface of a contact arm, and electricity is taken in an induction mode; 3. the temperature measurement is carried out in a wireless built-in mode, namely, a temperature sensor, induction power acquisition and a wireless communication module are embedded in the contact arm body to detect the temperature of the contact arm and the contact area. The common characteristics of the prior arts are that the average temperature on the contact arm is acquired by using a temperature sensor, and the problems of slow reaction speed and inaccurate temperature measurement exist.
Through careful study of the inventor, the important concern needed by the temperature measurement of the contact arm of the circuit breaker is not the average temperature on the contact arm, but the highest temperature generated at the contact, and only the highest temperature at the contact can cause damage to the whole circuit breaker, so that the key of the temperature measurement of the circuit breaker is to master the trend of the highest temperature of the contact along with time at any time.
Based on this, the utility model is especially provided.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems in the prior art, the present invention proposes the following technical solutions.
The utility model provides a circuit breaker wireless temperature measuring device, includes RFID temperature measurement label and antenna, the antenna set up with RFID temperature measurement label can realize wireless communication's position, RFID temperature measurement label sets up on the special system of a plurality of contact fingers of plum blossom contact on the circuit breaker touches and indicates, special contact finger is slightly less than other ordinary contact fingers and the area of contact who waits to meet the conductor with the area of contact that other ordinary contact indicated that it is slightly less than.
Furthermore, the ratio of the contact area of the special contact finger to the contact area of other single common contact finger to the conductor to be connected is 0.5-0.9.
Furthermore, the RFID temperature measurement tag is in close contact with the special contact finger through heat-conducting silica gel.
Further, the antenna adopts a flame-retardant antenna.
Furthermore, the circuit breaker temperature measuring device also comprises a contact arm temperature measuring device arranged in the contact arm, wherein the contact arm temperature measuring device comprises an induction electricity taking module, a temperature sensor module and a wireless transmission module; the induction electricity taking module is arranged on the contact arm, is connected with the temperature sensor module and the wireless transmission module and supplies power to the temperature sensor module and the wireless transmission module; the contact arm forms a cavity, and the temperature sensor module and the wireless transmission module are embedded into the cavity of the contact arm; the temperature sensor module is in signal connection with the wireless transmission module.
The utility model has the advantages that: 1. the contact area of a special contact finger in the tulip contact and a conductor to be connected is specially reduced to form a local highest temperature area, the real-time temperature of the local highest temperature area is recorded through an RFID temperature measurement tag, the trend of the highest temperature of the breaker contact along with time can be mastered, and therefore the whole network can be conveniently controlled; 2. the RFID temperature measurement tag is in close contact with the special contact finger through the heat-conducting silica gel, so that the accurate temperature on the contact finger can be obtained; 3. through touching arm temperature measuring device at inside setting of arm, can obtain the average temperature on touching the arm, the real-time highest temperature that obtains through RFID temperature measurement label is coordinated, can grasp the temperature trend on the circuit breaker better, the more convenient condition of grasping whole power supply network.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the wireless temperature measuring device for the circuit breaker of the present invention.
Fig. 2 is a schematic diagram of the combination of the special contact finger and the temperature measuring tag of the embodiment of the wireless temperature measuring device for the circuit breaker.
Fig. 3 is a schematic structural diagram of another embodiment of the wireless temperature measuring device for the circuit breaker of the present invention.
The antenna comprises a contact arm 100, a contact 110, a tulip contact 111, a common contact finger 112, a special contact finger 120, an RFID temperature measurement tag 130, an antenna 140, a contact arm temperature measurement device 141, an induction power taking module 142, a temperature sensor module 143, a wireless transmission module 144 and a cavity.
Detailed Description
The wireless temperature measuring device for the circuit breaker of the present invention is further described with reference to the accompanying drawings 1-3.
As shown in fig. 1 and fig. 2, the utility model discloses a wireless temperature measuring device of circuit breaker, including RFID temperature measurement label 120 and antenna 130, antenna 130 sets up the position that can realize wireless communication with RFID temperature measurement label 120, for example set up on the contact arm 100 of circuit breaker or set up on the cubical switchboard (not shown in the figure), as long as set up can with RFID temperature measurement label 120 wireless intercommunication and do not hinder the position of circuit breaker normal work can, RFID temperature measurement label 120 sets up on a purpose-built contact finger 112 in the multiple contact fingers of plum blossom contact 110 on the circuit breaker, purpose-built contact finger 112 is slightly less than the area of contact S2 of other ordinary contact fingers 111 with the area of contact S1 of waiting to connect the conductor with other ordinary contact finger 111. Because the contact area S2 between the special contact finger 112 and the conductor to be connected is small, it is determined that the resistance of the special contact finger 112 is large relative to the resistance of the other common contact fingers 111, when the circuit breaker is in operation, the temperature of the special contact finger 112 is the highest temperature of all the contact fingers (111,112) in the tulip contact 110 to which the special contact finger 112 belongs, and by arranging the RFID temperature measurement tag 120 on the surface of the special contact finger 112, the highest temperature on the tulip contact 110 can be detected in real time and accurately, and is transmitted to the temperature measurement control network through the antenna 130.
The ratio S2/S1 of the contact area of the special contact finger 112 to the contact area of the other single common contact finger 111 to the conductor to be connected is 0.5-0.9. The contact area S2 between the special contact finger 112 and the conductor to be connected is not too small to avoid local overheating caused by excessive resistance. The ratio S2/S1 should not be too large to avoid the other common fingers 111 being at a higher temperature than the special fingers 112.
The RFID temperature measurement tag 120 is in close contact with the tailored contact fingers 112 through the heat conductive silicone. The heat-conducting silica gel can avoid the problem that the contact surface between the RFID temperature measuring tag 120 and the special contact finger 112 is rough due to manufacturing defects, so that poor contact is caused.
The antenna 130 is a flame retardant antenna with a flame retardant rating of V0 and a high temperature resistance of 250 ℃.
As shown in fig. 3, which is a schematic structural diagram of another embodiment of the wireless temperature measuring device for a circuit breaker of the present invention, the temperature measuring device for a circuit breaker includes a contact arm temperature measuring device 140 disposed inside the contact arm 100, which includes an induction electricity obtaining module 141, a temperature sensor module 142 and a wireless transmission module 143, in addition to the RFID temperature measuring tag 120 and the antenna 130; the induction electricity taking module 141 is installed on the contact arm 100, is connected with the temperature sensor module 142 and the wireless transmission module 143, and supplies power to the temperature sensor module 142 and the wireless transmission module 143; the contact arm 100 forms a cavity 144, and the temperature sensor module 142 and the wireless transmission module 143 are embedded in the contact arm cavity 144; the temperature sensor module 142 is in signal connection with the wireless transmission module 143. The contact arm temperature measuring device 140 can detect the average temperature in the contact arm cavity 144 through the temperature sensor module 142, and transmit the measured average temperature to the temperature measurement control network through the wireless transmission module 143. The concrete structure of touching arm temperature measuring device 140 can refer to CN 204575209U-a structure of arm temperature measuring device the inside is touched to open type heavy current, the utility model discloses set up wireless transmission module 143 on the layer board of temperature sensor module in CN 204575209U.
The maximum temperature on the contact finger of the tulip contact is obtained through the RFID temperature measurement tag, the average temperature on the contact arm is obtained through the contact arm temperature measurement device inside the contact arm, two temperature curves fluctuating along with time can be obtained, the working state of the circuit breaker can be better mastered through temperature difference analysis of the two temperature curves, and the condition of the whole power supply network can be mastered more conveniently.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all the modifications and equivalents of the technical spirit of the present invention to any simple modifications of the above embodiments are within the scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a circuit breaker wireless temperature measuring device, includes RFID temperature measurement label (120) and antenna (130), antenna (130) set up with RFID temperature measurement label (120) can realize wireless communication' S position, its characterized in that, RFID temperature measurement label (120) set up on the circuit breaker on a purpose-built contact finger (112) in plum blossom contact (110) a plurality of contact fingers, the difference of purpose-built contact finger (112) and other ordinary contact finger (111) lies in that its area of contact S2 with waiting to connect the conductor is slightly less than other ordinary contact finger (111) and the area of contact S1 of waiting to connect the conductor.
2. The wireless temperature measuring device for the circuit breaker according to claim 1, wherein the ratio S2/S1 of the contact area of the special contact finger (112) to the contact area of the other single common contact finger (111) to the conductor to be connected is 0.5-0.9.
3. The circuit breaker wireless temperature measuring device of claim 1, wherein the RFID temperature measuring tag (120) is in close contact with the special contact finger (112) through a heat conductive silica gel.
4. The wireless temperature measuring device of the circuit breaker according to claim 1, characterized in that the antenna (130) is a flame retardant antenna.
5. The wireless temperature measuring device of the circuit breaker according to any one of claims 1-4, characterized in that, it also includes a contact arm temperature measuring device (140) arranged inside the contact arm (100), which includes an induction electricity-taking module (141), a temperature sensor module (142) and a wireless transmission module (143); the induction electricity taking module (141) is arranged on the contact arm (100), is connected with the temperature sensor module (142) and the wireless transmission module (143), and supplies power to the temperature sensor module (142) and the wireless transmission module (143); the contact arm (100) forms a cavity (144), and the temperature sensor module (142) and the wireless transmission module (143) are embedded in the contact arm cavity (144); the temperature sensor module (142) is in signal connection with the wireless transmission module (143).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122839046.0U CN216433301U (en) | 2021-11-18 | 2021-11-18 | Wireless temperature measuring device for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122839046.0U CN216433301U (en) | 2021-11-18 | 2021-11-18 | Wireless temperature measuring device for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216433301U true CN216433301U (en) | 2022-05-03 |
Family
ID=81338789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122839046.0U Active CN216433301U (en) | 2021-11-18 | 2021-11-18 | Wireless temperature measuring device for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216433301U (en) |
-
2021
- 2021-11-18 CN CN202122839046.0U patent/CN216433301U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231010 Address after: 014000 No.2 Power Plant, Qingshan District, Baotou City, Inner Mongolia Autonomous Region Patentee after: BAOTOU SECOND THERMAL POWER PLANT, NORTH UNITED POWER Corp. Address before: 014030 Baotou No.2 thermal power plant, Binggong Road, Qingshan District, Baotou City, Inner Mongolia Autonomous Region Patentee before: BAOTOU SECOND THERMAL POWER PLANT, NORTH UNITED POWER Corp. Patentee before: Beijing bodingqi Technology Development Co.,Ltd. |