CN211085491U - Temperature measuring device of capacitor - Google Patents
Temperature measuring device of capacitor Download PDFInfo
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- CN211085491U CN211085491U CN201922403115.6U CN201922403115U CN211085491U CN 211085491 U CN211085491 U CN 211085491U CN 201922403115 U CN201922403115 U CN 201922403115U CN 211085491 U CN211085491 U CN 211085491U
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- temperature
- capacitor
- temperature measuring
- radio frequency
- rfid tag
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Abstract
The utility model discloses a temperature measuring device of a capacitor, which comprises an RFID label integrated with a temperature measuring chip; the temperature measuring chip is used for detecting the temperature value of the capacitor; the RFID label is attached to and fixed on a fixing piece on the surface of the metal shell of the capacitor; the radio frequency card reader is in wireless communication connection with the RFID tag and is used for providing energy required by temperature measurement for the RFID tag and collecting a temperature value; and the alarm device is connected with the radio frequency card reader and used for sending alarm information when the temperature value read by the radio frequency card reader is abnormal. Utilize the RFID label can realize wireless passive signal transmission's function with integrated temperature chip in the RFID label in this application for this RFID chip has the temperature measurement function, because RFID label accessible radio frequency card reader obtains the electric energy, realizes the simplification to condenser temperature measurement equipment, and from this, the temperature measuring device of the condenser of this application simple structure can convenient effectual realization condenser temperature's measurement.
Description
Technical Field
The utility model relates to a condenser temperature detection area especially relates to a temperature measuring device of condenser.
Background
A capacitor is a commonly used circuit element in an electrical power system, and has a crucial role in maintaining the electrical power system to work properly. Therefore, the stability of the performance of the capacitor is maintained, and the normal work of the power system is guaranteed.
The temperature of the capacitor is one of important factors reflecting whether the capacitor works normally, but for the capacitor, particularly for a high-voltage capacitor, the temperature parameter of the capacitor is often monitored in real time. The reason is partly because of the limitation of the installation environment of the capacitor in the power system, and partly because the high-voltage capacitor has certain danger, and the temperature measurement of the capacitor has a safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a temperature measuring device of condenser has realized the safe effectual measurement of temperature of condenser.
In order to solve the technical problem, the utility model provides a temperature measuring device of a capacitor, which comprises an RFID label integrated with a temperature measuring chip; the temperature measuring chip is used for detecting the temperature value of the capacitor;
the RFID label is attached to and fixed on a fixing piece on the surface of the metal shell of the capacitor;
the radio frequency card reader is in wireless communication connection with the RFID tag and is used for providing energy required by temperature measurement for the RFID tag and acquiring the temperature value;
and the alarm device is connected with the radio frequency card reader and used for sending alarm information when the temperature value read by the radio frequency card reader is abnormal.
In an optional embodiment of the present application, the RFID tag includes a substrate, an antenna floor and a transceiver antenna disposed on the substrate, a temperature measurement chip connected to the antenna floor and the transceiver antenna, and a temperature sensor disposed in the temperature measurement chip;
the receiving and transmitting antenna is used for receiving electromagnetic waves transmitted by the radio frequency card reader; the temperature sensor is used for detecting the temperature value.
In an optional embodiment of the present application, a magnetic buckle is disposed on the fixing member, and the fixing member can be attached to the surface of the metal shell of the capacitor through the magnetic buckle; and when the fixing piece is adsorbed on the surface of the metal shell, the RFID tag arranged on the fixing piece can be attached to the surface of the metal shell.
In an alternative embodiment of the present application, the fixing member is a fixing ring, and the RFID tag is disposed within the ring of the fixing ring.
In an alternative embodiment of the present application, the fixing member is a high temperature resistant resin member.
In an optional embodiment of the present application, the RFID tags are respectively disposed on the capacitors, and within a reading range of the radio frequency card reader, the RFID tags are in communication connection with the same radio frequency card reader, and each RFID carries a different identification code.
The utility model provides a temperature measuring device of a capacitor, which comprises an RFID label integrated with a temperature measuring chip; the temperature measuring chip is used for detecting the temperature value of the capacitor; the RFID label is attached to and fixed on a fixing piece on the surface of the metal shell of the capacitor; the radio frequency card reader is in wireless communication connection with the RFID tag and is used for providing energy required by temperature measurement for the RFID tag and collecting a temperature value; and the alarm device is connected with the radio frequency card reader and used for sending alarm information when the temperature value read by the radio frequency card reader is abnormal.
Utilize the RFID label to realize the function of wireless passive signal transmission with integrated temperature chip in the RFID label in this application, make this RFID chip have the temperature measurement function, because can carry out the transmission of electromagnetic wave between RFID label and the radio frequency card reader, make RFID label accessible radio frequency card reader obtain the electric energy, and then make the temperature measurement chip need not to dispose supply circuit and power supply in addition in actual work, realize the simplification to condenser temperature measurement equipment, set up this RFID label behind the metal casing surface of condenser, can effectually realize real-time detection to the temperature of condenser, and upload this temperature value in real time, be favorable to effectively detecting the real-time temperature of condenser, the working property of condenser has been guaranteed. From this, the temperature measuring device of condenser of this application simple structure can convenient effectual realization condenser temperature's measurement.
Drawings
In order to clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a temperature measuring device of a capacitor according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of an RFID tag provided in an embodiment of the present application;
fig. 3 is an exploded view of a fastener according to an embodiment of the present disclosure.
Detailed Description
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a temperature measuring device of a capacitor provided in an embodiment of the present application. The temperature measuring device may include:
an RFID tag 3 integrated with a temperature measuring chip; the temperature measuring chip is used for detecting the temperature value of the capacitor 1;
a fixing member 4 for attaching and fixing the RFID tag 3 to the surface of the metal shell 2 of the capacitor 1;
the radio frequency card reader 5 is in wireless communication connection with the RFID tag 3 and is used for providing energy required by temperature measurement for the RFID tag 3 and collecting a temperature value;
and the alarm device 6 is connected with the radio frequency card reader 5 and used for sending alarm information when the temperature value read by the radio frequency card reader 5 is abnormal.
In particular, the RFID is a non-contact automatic identification technology, which automatically identifies a target object and obtains related data through a radio frequency signal, and the identification can be performed in various severe environments without manual intervention. The RFID technology mainly comprises an RFID label and a radio frequency card reader. And signal transmission is carried out between the radio frequency card reader and the transceiving antenna in the RFID label through electromagnetic wave signals.
The RFID tag 3 used in this embodiment is further integrated with a temperature measurement chip therein, and when the RFID tag 3 is attached to the surface of the metal shell 2 of the capacitor 1, the temperature measurement chip can be used to measure the temperature of the surface of the metal shell 2 of the capacitor 1, thereby indirectly measuring the temperature of the capacitor 1. And the temperature measurement chip also utilizes the function that the RFID label 3 can communicate with the radio frequency card reader 5, so that the temperature measurement chip outputs the measured temperature value through the radio frequency card reader 5, namely the temperature measurement chip outputs the detected temperature value of the capacitor 1 based on the wireless communication function between the RFID label 3 and the radio frequency card reader 5.
Further, for the RFID tag 3 and the radio frequency card reader 5, signal transmission of electromagnetic waves is mainly performed between the two, and transmission of electromagnetic waves is also transmission of energy, the electromagnetic waves transmitted by the radio frequency card reader 5 are transmitted to the RFID tag 3, and the RFID tag 3 obtains the energy transmitted by the radio frequency card reader 5 through the electromagnetic waves and uses the energy as an energy source for maintaining communication and temperature measurement functions of the RFID tag 3. The energy required for maintaining the normal temperature measurement of the temperature measurement chip built in the RFID tag 3 may be obtained based on the electromagnetic wave emitted by the radio frequency card reader 5, that is, the temperature measurement chip is mounted on the RFID tag 3 on the surface of the metal housing 2 of the capacitor 1, and the temperature measurement chip can continuously monitor the temperature of the capacitor 1 without configuring a power supply.
For a capacitor, especially a high voltage capacitor, the working environment is often inconvenient for manually detecting the temperature of the capacitor in real time, and even if a temperature measuring device and a communication device capable of wireless signal transmission are arranged on the capacitor, in order to maintain the normal operation of the temperature measuring device and the communication device, a power supply circuit or a storage battery is additionally arranged for the communication device. And it is often difficult to set up a power supply branch road for temperature measuring equipment and communications facilities power supply in the circuit that the condenser worked, lead to maintaining the circuit structure that temperature measuring equipment normally worked comparatively complicated.
In the embodiment, the wireless communication function between the wireless and radio frequency card readers 5 of the RFID tag 3 is fully utilized, meanwhile, the RFID tag 3 is utilized to obtain the function of maintaining the supply of working energy by utilizing electromagnetic waves emitted by the radio frequency card reader 5, the RFID tag 3 integrated with a temperature measurement chip and the radio frequency card reader 5 are adopted to work in a matching way to realize the measurement and output of the temperature of the capacitor, meanwhile, the radio frequency card reader 5 is also connected with the alarm device 6, the alarm device 6 can be a host or a processor or other devices, the judgment of a simple temperature value can be carried out, once the measured temperature value exceeds the range of a normal temperature threshold value, the capacitor is indicated to be in an abnormal working state, and an alarm is sent out immediately to draw attention of workers.
The temperature measuring device of condenser that provides in this application utilizes the operating characteristic that RFID label does not have power wireless communication, adopts the RFID label that the integration has the temperature measurement chip to realize the detection and the output to the condenser temperature to report to the police according to the abnormal operating condition of the temperature value of output to the condenser, whole temperature measuring device simple structure can realize the real-time supervision of condenser temperature, has guaranteed condenser temperature measurement's security and the measurement degree of difficulty.
In an optional embodiment of the present application, the RFID tag 3 may specifically include:
the antenna comprises a substrate, an antenna floor, a transmitting-receiving antenna, a temperature measuring chip and a temperature sensor, wherein the antenna floor and the transmitting-receiving antenna are arranged on the substrate;
the receiving and transmitting antenna is used for receiving electromagnetic waves transmitted by the radio frequency card reader 5; the temperature sensor is used for detecting a temperature value.
Specifically, reference may be made to fig. 2, where fig. 2 is a schematic structural diagram of an RFID tag provided in an embodiment of the present application. The RFID tag 3 includes a base material 31, an antenna floor 32, a transmitting/receiving antenna 33, and a temperature measuring chip 34. In fig. 2, the transmitting/receiving antenna 33 and the antenna floor 32 are respectively located on the upper and lower surfaces of the substrate 31; the temperature measuring chip 34 is arranged on the base material 31 and is positioned on the same plane with the transmitting-receiving antenna 33; the temperature measuring chip 34 is internally provided with a temperature sensor 341 for acquiring a temperature value, the temperature sensor 341 penetrates through the substrate 31 to the surface of the antenna floor 32, the transceiver antenna 33 is used for receiving electromagnetic wave signals of the radio frequency card reader 5, the temperature measuring chip 34 is connected with the transceiver antenna 33, the temperature measuring chip 34 is connected with the radio frequency card reader 5 through wireless communication, and the temperature measuring chip 34 is a radio frequency chip provided with an identification code.
The base material 31, the antenna floor 32, the transmitting-receiving antenna 33 and the temperature measuring chip 34 are connected into a complete RFID tag 3; the transceiver antenna 33 is connected with the radio frequency card reader 5 through electromagnetic wave signals, and is used for acquiring the electric quantity of the radio frequency card reader 5 so as to supply the temperature measuring chip 34 or other components for work. The temperature measuring chip 34 is connected with the transceiving antenna 33 to receive the electric quantity transmitted by the transceiving antenna 33, the temperature measuring chip 34 is a radio frequency chip based on the RFID technology, and has an identification code, and the identification code is an identity mark and has uniqueness. The temperature measuring chip 34 is connected with the radio frequency card reader 5 in a wireless communication mode, and the communication connection can be realized through the transceiving antenna 33.
Optionally, in another optional embodiment of the present application, the method may further include:
the plurality of RFID tags 3 are respectively arranged on the capacitors 1, and in the card reading range of the radio frequency card reader 5, each RFID tag 3 is in communication connection with the same radio frequency card reader 5, and each RFID tag 3 carries different identification codes.
The radio frequency card reader 5 can perform wireless communication and energy transfer with the RFID tags 3, and the temperature measuring chips 34 in the RFID tags 3 have unique identification codes, so that the radio frequency card reader 5 can distinguish the RFID tags 3 based on the identification codes, and further acquire the temperature values of the capacitors 1 in the capacitor bank.
Based on any of the above embodiments, as shown in fig. 3, fig. 3 is an exploded schematic view of a fixing member provided in an embodiment of the present application. In another specific embodiment of the present application, the method may further include:
the fixing piece 4 for fixing the RFID tag 3 on the surface of the metal shell 2 of the capacitor 1 may be specifically attached to the surface of the metal shell 2 of the capacitor 1 through a magnetic buckle 42; and when the fixing member 4 is adsorbed on the surface of the metal shell 4, the RFID tag 3 arranged on the fixing member 4 can be adhered to the surface of the metal shell 2.
In fig. 3, two through holes 41 for accommodating the magnetic buttons 42 are formed on two sides of the fixing member 4, the magnetic buttons 42 can be fixed in the through holes 41, and then the fixing member 4 can be adsorbed on the surface of the metal shell 2 of the capacitor by the attraction of the magnetic buttons 42. The surface of the metal shell 2 of the capacitor 1 does not need to be subjected to any structural improvement operation, and the installation is simple and easy to realize.
It should be noted that, for the capacitor 1, a large amount of liquid often exists inside the metal shell 2, and therefore, for the metal shell 2 of the capacitor 1, the integrity of the metal shell 2 cannot be damaged by fixing members such as screws, which brings certain difficulty to the fixing of the RFID tag 3, in the application, the RFID tag 3 and the fixing member 4 are adsorbed on the surface of the metal shell 2 together by the characteristic that the magnetic buckle 42 can adsorb the metal shell 2, which simplifies the difficulty in fixing the RFID tag 3 and facilitates the replacement of the RFID tag 3.
Alternatively, in another embodiment of the present application, the fixing member 4 may be a fixing ring, and the RFID tag 3 is disposed in the ring of the fixing ring.
Specifically, the edge parts of the fixing ring and the RFID tag 3 are connected, and the RFID tag 3 is clamped in the fixing ring, so that the RFID tag 3 is exposed outside, and the fixing ring is prevented from interfering the transmission of radio frequency signals.
Considering that, in the actual working operation of the capacitor 1, the temperature may be relatively high, and in order to place the fixing member 4 to be deformed by heat for a long time, the RFID tag 3 may not be well attached to the surface of the metal shell 2 of the capacitor 1, so that the temperature value measured by the temperature measuring chip 34 in the RFID tag 3 is inaccurate, in another optional embodiment of the present application, the method may further include:
the fixing member 4 is a high-temperature resistant resin member.
The high-temperature resistant resin has the characteristics of no corrosivity, aging resistance, acid and alkali resistance, high and low temperature resistance, good insulating, waterproof and anti-seismic properties, suitability for various high-temperature industrial repairing, filling, bonding and the like. The product produced by adopting the high-temperature resistant resin has strong mechanical impact resistance and cold and hot impact resistance, no volatilization, low odor, small curing shrinkage and no deformation.
Adopt the mounting 4 that high temperature resistant resin production formed in this application, can guarantee mounting 4 to the fixed stability of RFID label 3, guaranteed the accuracy of temperature measurement chip 34 temperature measurement.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (6)
1. The temperature measuring device of the capacitor is characterized by comprising an RFID label integrated with a temperature measuring chip; the temperature measuring chip is used for detecting the temperature value of the capacitor;
the RFID label is attached to and fixed on a fixing piece on the surface of the metal shell of the capacitor;
the radio frequency card reader is in wireless communication connection with the RFID tag and is used for providing energy required by temperature measurement for the RFID tag and acquiring the temperature value;
and the alarm device is connected with the radio frequency card reader and used for sending alarm information when the temperature value read by the radio frequency card reader is abnormal.
2. The temperature measuring device of a capacitor according to claim 1, wherein the RFID tag includes a substrate, an antenna floor and a transceiver antenna provided on the substrate, a temperature measuring chip connected to the antenna floor and the transceiver antenna, and a temperature sensor built in the temperature measuring chip;
the receiving and transmitting antenna is used for receiving electromagnetic waves transmitted by the radio frequency card reader; the temperature sensor is used for detecting the temperature value.
3. The temperature measuring device of the capacitor as claimed in claim 1, wherein the fixing member is provided with a magnetic buckle, and the fixing member can be adsorbed on the surface of the metal shell of the capacitor through the magnetic buckle; and when the fixing piece is adsorbed on the surface of the metal shell, the RFID tag arranged on the fixing piece can be attached to the surface of the metal shell.
4. The apparatus according to claim 3, wherein the fixing member is a fixing ring, and the RFID tag is disposed in the fixing ring.
5. The temperature measuring apparatus for capacitors as claimed in claim 3, wherein said fixing member is a high temperature resistant resin member.
6. The device as claimed in any one of claims 1 to 5, wherein a plurality of RFID tags are respectively disposed on each capacitor, and each RFID tag is communicatively connected to the same RF reader within a reading range of the RF reader, and each RFID tag carries a different identification code.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922403115.6U CN211085491U (en) | 2019-12-27 | 2019-12-27 | Temperature measuring device of capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922403115.6U CN211085491U (en) | 2019-12-27 | 2019-12-27 | Temperature measuring device of capacitor |
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| Publication Number | Publication Date |
|---|---|
| CN211085491U true CN211085491U (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922403115.6U Active CN211085491U (en) | 2019-12-27 | 2019-12-27 | Temperature measuring device of capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114720018A (en) * | 2022-04-07 | 2022-07-08 | 中国电信股份有限公司 | Monitoring system and monitoring method for power supply equipment, electronic equipment and storage medium |
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2019
- 2019-12-27 CN CN201922403115.6U patent/CN211085491U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114720018A (en) * | 2022-04-07 | 2022-07-08 | 中国电信股份有限公司 | Monitoring system and monitoring method for power supply equipment, electronic equipment and storage medium |
| CN114720018B (en) * | 2022-04-07 | 2024-04-05 | 中国电信股份有限公司 | Monitoring system and monitoring method of power supply equipment, electronic equipment and storage medium |
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