CN219121570U - Wireless passive temperature measurement system - Google Patents
Wireless passive temperature measurement system Download PDFInfo
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- CN219121570U CN219121570U CN202221615470.5U CN202221615470U CN219121570U CN 219121570 U CN219121570 U CN 219121570U CN 202221615470 U CN202221615470 U CN 202221615470U CN 219121570 U CN219121570 U CN 219121570U
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Abstract
The utility model discloses a wireless passive temperature measurement system, which relates to the technical field of power equipment and is applied to a breaker contact, wherein the breaker contact comprises: the device comprises a first grid sheet, a second grid sheet, a contact arm, a contact, at least two springs and a plurality of contact fingers which are annularly arranged; the inner side of each contact finger is provided with a first bayonet and a second bayonet, the outer side of each contact finger is provided with at least two spring bayonets, the first bayonet is used for clamping the first grid sheet, the second bayonet is used for clamping the second grid sheet, and the spring bayonets are used for limiting springs. The wireless passive temperature measurement system comprises: the temperature measuring device is arranged on any spring, and the length of the spring provided with the temperature measuring device is consistent with the length of other springs; and the monitoring terminal is used for carrying out wireless data communication with the temperature measuring device. The wireless passive temperature measuring system provided by the embodiment of the utility model can solve the problems that the conventional temperature measuring device is unstable in fixation and easy to fall off, and the temperature measuring precision and response speed are low.
Description
Technical Field
The utility model relates to the technical field of power equipment, in particular to a wireless passive temperature measurement system.
Background
Under the development of a power system, people can not leave electric energy more and more in life and work, and it is very important to ensure the stable operation of the power system. How to conduct diagnosis and elimination of faults in a targeted manner contributes to the stable performance of the power system. In the present stage, the high-voltage switch cabinet is a very important component in the power system, and as the high-voltage switch cabinet is influenced by the temperature and humidity of the environment, the material property of the power equipment, vibration generated by electromotive force and other factors in the long-term operation process, the problems of oxidation of the metal surface of the connecting or jointing part of the electric equipment, the reduction of the clamping force of the fastening bolt, the abrasion of the contact point, the deformation caused by long-term expansion and contraction of the contact surface and the like often occur, so that the contact impedance of the connecting part of the electric equipment is increased, and the equipment is overheated and even accidents occur.
Most of the existing high-voltage switch cabinets are fully-closed high-voltage electrified equipment, fault heating points exist inside the electric equipment and cannot be found through conventional inspection methods such as vision, touch sense and hearing of on-site inspection staff, the existing temperature measuring device has the problems of unstable fixation and easy falling, and the temperature measuring precision and response speed are low.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a wireless passive temperature measurement system, which can solve the problems of unstable fixation, easy falling off, low temperature measurement precision and response speed of the traditional temperature measurement device.
According to an embodiment of the utility model, the wireless passive temperature measurement system is applied to a breaker contact, and the breaker contact comprises: the device comprises a first grid sheet, a second grid sheet, a contact arm, a contact, at least two springs and a plurality of contact fingers which are annularly arranged; the inner side of each contact finger is provided with a first bayonet and a second bayonet, the outer side of each contact finger is provided with at least two spring bayonets, the first bayonets are used for clamping the first grid sheet, the second bayonets are used for clamping the second grid sheet, and the spring bayonets are used for limiting the springs; one end of the contact arm penetrates through the first grid sheet, and the other end of the contact arm protrudes out of the plurality of contact fingers; one end of the contact is arranged among the plurality of contact fingers and is opposite to the contact arm, and the other end of the contact protrudes out of the plurality of contact fingers;
the wireless passive temperature measurement system comprises:
the temperature measuring device is arranged on any one of the springs, and the length of the spring provided with the temperature measuring device is consistent with the length of the other springs;
and the monitoring terminal is used for carrying out wireless data communication with the temperature measuring device.
The wireless passive temperature measurement system provided by the embodiment of the utility model has at least the following beneficial effects:
the temperature measuring device can be fixed more firmly by arranging the temperature measuring device on any spring, and the temperature measuring precision and response speed are high. The length of the spring provided with the temperature measuring device is consistent with the lengths of other springs, the structural parameters of the breaker contact are not affected, and the spring performance of the temperature measuring device is improved. The temperature measuring device acquires the temperature signal of the measured point and then uploads the temperature signal to the monitoring terminal, and a patrol inspector can check the temperature of the measured point only by the monitoring terminal remotely, so that automatic temperature measurement is realized. The wireless passive temperature measuring system solves the problems that the existing temperature measuring device is unstable in fixation and easy to fall off, and the temperature measuring precision and response speed are low.
According to some embodiments of the utility model, the temperature measuring device comprises:
the two ends of the mounting piece are provided with mounting holes, and the two ends of the spring correspondingly penetrate through the two mounting holes one by one and are connected with the mounting piece;
and the temperature sensor is arranged in the mounting piece.
According to some embodiments of the utility model, the temperature sensor is an RFID temperature sensor.
According to some embodiments of the utility model, the spring bayonet and the spring are all plural, and the number of the springs is the same as the number of the spring bayonets, and the temperature measuring device is arranged on any spring.
According to some embodiments of the utility model, the temperature measuring device is a plurality of temperature measuring devices, and the number of the temperature measuring devices is less than or equal to the number of the springs.
According to some embodiments of the utility model, the wireless passive temperature measurement system further comprises a data processor, wherein the data processor is used for wirelessly receiving temperature data sent by the plurality of temperature measurement devices and performing wireless data communication with the monitoring terminal.
According to some embodiments of the utility model, the plurality of data processors are each configured to wirelessly receive temperature data sent by the plurality of temperature measurement devices, and perform wireless data communication with the monitoring terminal.
According to some embodiments of the utility model, a display module is also included in communication with the data processor.
According to some embodiments of the utility model, an alarm module is also included in communication with the data processor.
According to some embodiments of the utility model, the data processor and the monitoring terminal perform signal transmission through a CAN bus.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram showing an arrangement of a temperature measuring device according to an embodiment of the present utility model;
FIG. 2 is a schematic view of an expanded arrangement of the temperature measuring device of FIG. 1;
fig. 3 is a schematic view of a circuit breaker contact according to an embodiment of the present utility model;
FIG. 4 is a block diagram of a wireless passive temperature measurement system according to an embodiment of the present utility model.
Reference numerals:
the first grid plate 110, the second grid plate 120, the contact arm 130, the contact 140, the spring 150 and the contact finger 160;
a temperature measuring device 200;
a monitor terminal 300;
a data processor 400.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
A clear and complete description of the wireless passive thermometry system of embodiments of the utility model will be provided below in conjunction with fig. 1-4, it being apparent that the embodiments described below are some, but not all, of the embodiments of the utility model.
The wireless passive temperature measurement system according to the embodiment of the utility model is applied to a circuit breaker contact, and the circuit breaker contact comprises a first grid sheet 110, a second grid sheet 120, a contact arm 130, a contact 140, at least two springs 150 and a plurality of contact fingers 160 which are annularly arranged. The inner side of each contact finger 160 is provided with a first bayonet and a second bayonet, the outer side of each contact finger 160 is provided with at least two spring 150 bayonets, the first bayonet is used for clamping the first grid sheet 110, the second bayonet is used for clamping the second grid sheet 120, and the spring 150 bayonets are used for limiting the springs 150; one end of the contact arm 130 is penetrated through the first grid sheet 110, and the other end of the contact arm protrudes out of the plurality of contact fingers 160; one end of the contact 140 is disposed between the plurality of contact fingers 160 and opposite to the contact arm 130, and the other end protrudes from the plurality of contact fingers 160.
The wireless passive temperature measuring system comprises a temperature measuring device 200 and a monitoring terminal 300. The temperature measuring device 200 is arranged on any spring 150, and the length of the spring 150 provided with the temperature measuring device 200 is consistent with the length of other springs 150; the monitoring terminal 300 is used for performing wireless data communication with the temperature measuring device 200.
The bayonets of the two springs 150 are arranged at two ends of the outer side of the contact finger 160 in a one-to-one correspondence. The two springs 150 are clamped at two outer ends of the contact fingers 160 in a one-to-one correspondence manner, and provide centripetal force to the plurality of contact fingers 160 in a ring arrangement to fix the plurality of contact fingers 160, and enable the plurality of contact fingers 160 in the ring arrangement to have the capability of generating deformation so as to facilitate the insertion of the contacts 140. It should be noted that, in general, the number of springs 150 of the breaker contact is four, and two ends of the outer side of the contact finger 160 are respectively two, but in the embodiment of the present utility model, the number of springs 150 is not limited.
The temperature measuring device 200 is arranged on any spring 150, two ends of the temperature measuring device 200 are connected with two ends of the spring 150 in a one-to-one correspondence manner, as shown in fig. 1 and 2, the length of the spring 150 provided with the temperature measuring device 200 is consistent with the length of other springs 150, and the structural parameters of the breaker contacts are not affected. The spring 150 is made of conductive material, and has high temperature measurement precision and response speed. The temperature measuring device 200 is fixed on the spring 150 and is not easy to fall off, so that the labor maintenance cost caused by the falling off of the temperature measuring device 200 is reduced.
The two springs 150 apply centripetal force to the plurality of contact fingers 160 which are annularly arranged together, so that the pressing force of the plurality of contact fingers 160 to the contact 140 is provided, the pressing force of the spring 150 provided with the temperature measuring device 200 and the pressing force of the spring 150 not provided with the temperature measuring device 200 are obtained through measurement or calculation, and the performance of the spring 150 added with the temperature measuring device 200 is better after comparison. It should be noted that the process of measuring or calculating the pressing force is known to those skilled in the art, and is not described herein in detail, and should not be construed as limiting the present utility model.
According to the wireless passive temperature measurement system of the embodiment of the utility model, the temperature measurement device 200 can be fixed more firmly by arranging the temperature measurement device 200 on any spring 150, and the temperature measurement precision and response speed are high. The length of the spring 150 provided with the temperature measuring device 200 is consistent with the lengths of other springs 150, the structural parameters of the breaker contacts are not affected, and the performance of the spring 150 with the temperature measuring device 200 is better. The temperature measuring device 200 acquires the temperature signal of the measured point and uploads the temperature signal to the monitoring terminal 300, and a patrol inspector can check the temperature of the measured point only by the monitoring terminal 300 remotely, so that automatic temperature measurement is realized. The wireless passive temperature measurement system solves the problems that the existing temperature measurement device 200 is unstable in fixation and easy to fall off, and the temperature measurement precision and response speed are low.
In some embodiments of the present utility model, referring to fig. 1 and 2, a temperature measuring device 200 includes a mount and a temperature sensor. Mounting pieces, two ends of which are provided with mounting holes, and two ends of the spring 150 correspondingly penetrate through the two mounting holes one by one and are connected with the mounting pieces; and the temperature sensor is arranged in the mounting piece. The two ends of the spring 150 are correspondingly connected with the mounting pieces through the two mounting holes one by one, so that the whole temperature measuring device 200 can be fixed more firmly. It should be noted that, the spring 150 may be a ring spring 150, or may be a strip spring 150 that is connected end to form a ring structure, as long as the mounting member can be connected to the spring 150, and the length of the spring 150 provided with the temperature measuring device 200 is identical to the length of the other springs 150, and the specific structure of the spring 150 should not be construed as limiting the present utility model.
In some embodiments of the utility model, the temperature sensor is an RFID temperature sensor. The RFID temperature measuring sensor is a contact type temperature measuring sensor, and the temperature of a measured point can be measured rapidly and accurately by arranging the RFID temperature measuring sensor on the spring 150 of the contact of the circuit breaker. The RFID temperature sensor has the advantages that the data communication mode is a wireless radio frequency signal, the working mode is active transceiving, the response speed is high, wireless power supply and wireless reading are realized, and a complex wiring process is not needed. The RFID temperature sensor is free of battery power supply, maintenance is free after installation is completed, and the RFID temperature sensor is free of attenuation materials and long in service life. The communication of the RFID temperature sensor is digital transmission with verification, and the RFID temperature sensor has a non-unique ID number and strong anti-interference capability. RFID temperature sensors are well suited for use in high voltage or high current hazardous environments.
It should be noted that the working principle of the RFID temperature sensor is the prior art known to those skilled in the art, and will not be described herein.
In some embodiments of the present utility model, referring to fig. 3, the spring 150 and the spring 150 are plural, and the number of the springs 150 is identical to the number of the spring 150, and the temperature measuring device 200 is disposed on any spring 150. The more springs 150, the greater the centripetal force on the plurality of fingers 160, and the greater the compressive force of the plurality of fingers 160 on the contact 140. The number of springs 150 is generally four, two at each of the two ends of the outer side of the contact finger 160, and the number of springs 150 needs to be determined according to the actual situation, so that the standard parameters of the breaker contact can be satisfied, and the utility model is not limited.
In some embodiments of the present utility model, the temperature measuring device 200 is plural, and the number of the temperature measuring devices 200 is less than or equal to the number of the springs 150. The plurality of temperature measuring devices 200 can measure the temperature at different temperature measuring points of the same breaker contact to obtain a plurality of temperatures, and more accurate temperature measuring results can be obtained in a mean value obtaining mode. It should be noted that the plurality of temperature measuring devices 200 may be provided on the same spring 150 or may be provided on different springs 150, and the set point of the plurality of temperature measuring devices 200 should not be construed as limiting the present utility model.
In some embodiments of the present utility model, referring to fig. 4, the wireless passive temperature measurement system further includes a data processor 400, where the data processor 400 is configured to wirelessly receive temperature data sent by the plurality of temperature measurement devices 200 and communicate wireless data with the monitoring terminal 300. If the temperature measuring devices 200 are multiple, the data processor 400 can receive and process a large amount of data more quickly, and upload the temperature data detected by the temperature measuring devices 200 to the monitoring terminal 300 after integration processing, so that the data processing speed is faster. The model of the data processor 400 is not limited herein, and may be any type capable of implementing data acquisition and processing functions.
In some embodiments of the present utility model, referring to fig. 4, the number of data processors 400 is plural, and each data processor 400 is configured to wirelessly receive temperature data sent by plural temperature measurement devices 200, and perform wireless data communication with the monitoring terminal 300. For the condition that a plurality of high-voltage switch cabinets exist, and a plurality of temperature measuring devices 200 are arranged in each high-voltage switch cabinet, a data processor 400 is arranged outside each high-voltage switch cabinet, each data processor 400 is used for specially receiving a plurality of temperature data detected by the plurality of temperature measuring devices 200 in the corresponding high-voltage switch cabinet, and then the temperature data are uploaded to the monitoring terminal 300, so that the temperature of equipment in different high-voltage switch cabinets can be correspondingly detected, equipment in the high-voltage switch cabinet with faults can be conveniently and rapidly found, and maintenance is performed.
In some embodiments of the present utility model, a display module is also included that is coupled to the data processor 400. After the data processor 400 receives the temperature data sent by the temperature measuring device 200 wirelessly, the temperature data is displayed in real time through the display module, and the temperature of the equipment can be more intuitively seen by the patrol personnel on site. It should be noted that the display module may be an LCD screen, or may be other structures with display functions, which is not limited herein.
In some embodiments of the utility model, an alarm module is also included in communication with the data processor 400. When the temperature detected by the temperature measuring device 200 exceeds a set threshold value, the alarm module controls the alarm to alarm, so that the inspection personnel can be timely notified to carry out fault maintenance, and accidents are reduced.
In some embodiments of the present utility model, the data processor 400 and the monitor terminal 300 perform signal transmission through a CAN bus. CAN (Controller Area Network) is an ISO international standardized serial communication protocol, the CAN has high performance and high reliability, and the CAN bus provides powerful technical support for realizing real-time and reliable data communication among nodes of a distributed control system, so that the utility model CAN be well applied to the wireless passive temperature measurement system to realize wireless data communication between the data processor 400 and the monitoring terminal 300.
As another embodiment, the data processor 400 and the monitoring terminal 300 may also perform signal transmission through a fiber channel, a PLC broadband carrier, a wireless GPRS, a 4G network, etc., and the specific principle is the prior art known to those skilled in the art, which is not described herein. It should be noted that the signal transmission manner between the data processor 400 and the monitor terminal 300 should not be construed as limiting the present utility model.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (10)
1. A wireless passive temperature measurement system for a circuit breaker contact, the circuit breaker contact comprising: the device comprises a first grid sheet (110), a second grid sheet (120), a contact arm (130), a contact (140), at least two springs (150) and a plurality of contact fingers (160) which are annularly arranged; the inner side of each contact finger (160) is provided with a first bayonet and a second bayonet, the outer side of each contact finger (160) is provided with at least two spring (150) bayonets, the first bayonet is used for clamping the first grid sheet (110), the second bayonet is used for clamping the second grid sheet (120), and the spring (150) bayonets are used for limiting the springs (150); one end of the contact arm (130) is penetrated through the first grid sheet (110), and the other end of the contact arm protrudes out of the plurality of contact fingers (160); one end of the contact (140) is arranged among a plurality of contact fingers (160) and is opposite to the contact arm (130), and the other end of the contact protrudes out of the plurality of contact fingers (160);
the wireless passive temperature measurement system comprises:
the temperature measuring device (200) is arranged on any spring (150), and the length of the spring (150) provided with the temperature measuring device (200) is consistent with the length of other springs (150);
and the monitoring terminal (300) is used for carrying out wireless data communication with the temperature measuring device (200).
2. The wireless passive thermometry system of claim 1, wherein the thermometry device (200) comprises:
the two ends of the mounting piece are provided with mounting holes, and the two ends of the spring (150) correspondingly penetrate through the two mounting holes one by one and are connected with the mounting piece;
and the temperature sensor is arranged in the mounting piece.
3. The wireless passive temperature measurement system of claim 2, wherein the temperature sensor is an RFID temperature measurement sensor.
4. The wireless passive temperature measurement system of claim 1, wherein the spring (150) bayonet and the spring (150) are plural, and the number of the springs (150) is identical to the number of the spring (150) bayonet, and the temperature measurement device (200) is disposed on any one of the springs (150).
5. The wireless passive temperature measurement system of claim 4, wherein the temperature measurement device (200) is a plurality and the number of temperature measurement devices (200) is less than or equal to the number of springs (150).
6. The wireless passive temperature measurement system of claim 5, further comprising a data processor (400), wherein the data processor (400) is configured to wirelessly receive temperature data transmitted by a plurality of the temperature measurement devices (200) and to communicate wireless data with the monitoring terminal (300).
7. The wireless passive temperature measurement system of claim 6, wherein the plurality of data processors (400) are provided, each of the plurality of data processors (400) being configured to wirelessly receive temperature data transmitted by a plurality of temperature measurement devices (200) and to communicate with the monitoring terminal (300) wirelessly.
8. The wireless passive thermometry system of claim 6 or 7, further comprising a display module connected to the data processor (400).
9. The wireless passive thermometry system of claim 6 or 7, further comprising an alarm module connected to the data processor (400).
10. The wireless passive temperature measurement system according to claim 6 or 7, wherein the data processor (400) and the monitoring terminal (300) are in signal transmission via a CAN bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221615470.5U CN219121570U (en) | 2022-06-24 | 2022-06-24 | Wireless passive temperature measurement system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221615470.5U CN219121570U (en) | 2022-06-24 | 2022-06-24 | Wireless passive temperature measurement system |
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| Publication Number | Publication Date |
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| CN219121570U true CN219121570U (en) | 2023-06-02 |
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| CN202221615470.5U Active CN219121570U (en) | 2022-06-24 | 2022-06-24 | Wireless passive temperature measurement system |
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| CN (1) | CN219121570U (en) |
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