Wireless temperature measurement polar plate and high-power resistor with online monitoring device

Abstract

The utility model provides a wireless temperature measuring polar plate and a high-power resistor with an on-line monitoring device, which are used for solving the technical defect that the existing high-power resistor is not provided with a corresponding on-line temperature monitoring device due to the restriction of high-temperature and high-pressure conditions. The wireless temperature measurement polar plate provided by the utility model is composed of the electrode plate and the two wireless temperature sensors, and the two wireless temperature sensors are symmetrically arranged on the two sides of the electrode plate, so that the transmission distance of signals can be effectively increased, an external device can conveniently obtain temperature information, and the wireless temperature measurement polar plate is particularly suitable for scenes with large sizes of high-power resistors; according to the high-power resistor with the online monitoring device provided by the utility model, the wireless temperature measurement polar plate is arranged at a position adjacent to the resistor disc to be subjected to temperature measurement, so that the signal transmission distance is effectively increased, the wireless temperature measurement polar plate and the resistor disc simultaneously work in the same environment, and the accuracy of online monitoring information is effectively ensured.

Description

Technical Field

[0001] This utility model relates to high-power resistors, and more particularly to a wireless temperature measuring plate and a high-power resistor with an online monitoring device. Background Technology

[0002] Currently, due to the high temperature and high pressure requirements of high-power resistors, there are no corresponding online temperature monitoring devices to provide strong support for the normal operation of high-power resistors. Utility Model Content

[0003] The purpose of this invention is to address the deficiency of existing high-power resistors, which lack corresponding online temperature monitoring devices due to high temperature and high pressure conditions, by providing a wireless temperature measuring plate and a high-power resistor with an online monitoring device.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0005] A wireless temperature measuring plate, which is special in that it includes an electrode plate and two wireless temperature sensors;

[0006] The electrode plate has a conductive function and is used to transfer temperature to the external component to be measured.

[0007] Two wireless temperature sensors are symmetrically arranged on both sides of the electrode plate to monitor the temperature of the electrode plate.

[0008] Furthermore, the electrode plate is an aluminum electrode plate or a copper electrode plate; the wireless temperature sensor is a passive sensor.

[0009] Furthermore, flat cuts are provided at symmetrical positions on both sides of the electrode plate;

[0010] Two wireless temperature sensors are respectively positioned at the flat cuts on both sides of the electrode plate.

[0011] In addition, this utility model also provides a high-power resistor with an online monitoring device, which is special in that it includes a resistive body, an insulating sleeve coaxially disposed on the outside of the resistive body, a wireless transmitter, and a data acquisition device.

[0012] The resistive element includes M resistive sheets and N wireless temperature measuring plates as described above, where M≥4, N≥1, and M>N; the M resistive sheets are stacked sequentially, and the wireless temperature measuring plates are arranged radially between the resistive sheet to be measured and the resistive sheet adjacent to its upper or lower end.

[0013] The wireless transmitter communicates bidirectionally with the wireless temperature sensor of the wireless temperature measuring plate. The wireless temperature sensor receives the sound waves emitted by the wireless transmitter and sends sound waves of different frequencies to the wireless transmitter according to the different monitored temperatures. The wireless transmitter obtains the corresponding temperature information based on the sound wave signals sent by the wireless temperature sensor.

[0014] The wireless transmitter is grounded and connected to the acquisition device via a coaxial cable. It is used to acquire temperature information from the wireless temperature sensor and transmit it to the acquisition device via the coaxial cable.

[0015] Furthermore, the resistor element has a circular structure;

[0016] The maximum diameter of the wireless temperature measuring plate is less than or equal to the diameter of the resistor element, which means that it does not affect the normal installation of the resistor element, nor does it affect the insulation performance of the resistor element under high voltage.

[0017] Furthermore, the maximum diameter of the wireless temperature measuring plate is equal to the diameter of the resistive element.

[0018] Furthermore, the wireless transmitting device employs surface acoustic wave transmission.

[0019] Furthermore, the electrode plate is an aluminum electrode plate or a copper electrode plate.

[0020] Furthermore, the wireless temperature sensor is a passive sensor, so there is no need to replace the battery later.

[0021] Furthermore, it also includes steel supports;

[0022] The steel support column is installed at the lower end of the insulating sleeve;

[0023] Both the wireless transmitter and the data acquisition device are mounted on steel supports.

[0024] Furthermore, the acquisition device has 485 communication functionality.

[0025] Furthermore, the resistor is made of ceramic or metal.

[0026] The advantages of this utility model compared to the prior art are as follows:

[0027] 1. This utility model uses an electrode plate and two wireless temperature sensors symmetrically arranged on both sides of the electrode plate to form a wireless temperature measuring plate. The symmetrical installation of the wireless temperature sensors can effectively increase the transmission distance of the temperature signal, making it easier for an external wireless transmitting device to obtain temperature information.

[0028] 2. Compared to the drawback of conventional wireless temperature sensors where the temperature cannot be obtained by the wireless transmitter, this utility model provides a high-power resistor with an online monitoring device. By setting up a wireless temperature-sensing plate, it not only effectively increases the signal transmission distance, making it easier for the wireless transmitter to obtain temperature information, but also installs the wireless temperature-sensing plate adjacent to the resistor to be measured, allowing the wireless temperature-sensing plate and the resistor to work simultaneously in the same environment. This effectively ensures the accuracy of the online monitoring information and is particularly suitable for scenarios where the high-power resistor is large in size.

[0029] 3. This utility model uses a wireless temperature sensor and a wireless transmitter to collect temperature information of the resistor element, which can achieve complete isolation between high and low voltage.

[0030] 4. The high-power resistor with online monitoring device provided by this utility model has a maximum diameter of the wireless temperature measuring plate that is less than or equal to the diameter of the resistor element. This setting does not affect the normal installation of the resistor and does not affect the insulation performance of the resistor under high voltage.

[0031] 5. The wireless temperature sensor in this utility model is a passive device, which is easy to maintain and does not require battery replacement later. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of an embodiment of the wireless temperature measuring electrode of this utility model;

[0033] Figure 2 This is a schematic diagram of the structure of an embodiment of a high-power resistor with an online monitoring device according to the present invention.

[0034] The specific attached figures are labeled as follows:

[0035] 1-Resistor; 2-Wireless temperature measuring plate; 3-Insulating sleeve; 4-Electrode plate; 5-Wireless temperature sensor; 6-Steel support; 7-Wireless transmitter; 8-Coaxial cable; 9-Data acquisition device. Detailed Implementation

[0036] To make the advantages and features of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] like Figure 1 As shown, a wireless temperature measuring electrode plate includes an electrode plate 4 and two wireless temperature sensors 5. The electrode plate 4 is conductive and is used to contact an external component to be measured, transferring the temperature of the component to the electrode plate 4. Flat cutouts are symmetrically positioned on both sides of the electrode plate 4. The two wireless temperature sensors 5 are respectively positioned at the flat cutouts on both sides of the electrode plate 4, allowing the temperature of the electrode plate 4 to be monitored by the two wireless temperature sensors 5, thereby enabling temperature measurement of the external component.

[0038] The symmetrical installation of the wireless temperature sensors in pairs can effectively increase the signal transmission distance, making it easier for external devices such as wireless transmitters to obtain the temperature information emitted by the component being measured.

[0039] Among them, the electrode plate 4 is usually made of aluminum or copper. In this embodiment, the electrode plate 4 is an aluminum electrode plate. The wireless temperature sensor 5 is a passive sensor, which is easy to maintain and does not require battery replacement later.

[0040] like Figure 2 As shown, a high-power resistor with an online monitoring device includes a resistor element, an insulating sleeve 3, a steel support 6, a wireless transmitter 7, and a data acquisition device 9.

[0041] The resistive element comprises M resistive elements 1 and N wireless temperature-sensing plates 2, where M ≥ 4, N ≥ 1, and M > N. The number of resistive elements 1 is determined based on specific engineering needs, generally not exceeding 65. The number of wireless temperature-sensing plates 2 is determined by the number of resistive elements to be measured; in this embodiment, there is one wireless temperature-sensing plate 2. Multiple resistive elements 1 are stacked sequentially, and the wireless temperature-sensing plates 2 are radially positioned between the resistive element 1 to be measured and its adjacent resistive elements 1. Specifically, adjacent resistive elements 1 can be either adjacent to the upper end of the resistive element 1 to be measured or adjacent to the lower end of the resistive element 1 to be measured. This arrangement allows the wireless temperature-sensing plates 2 and the resistive elements 1 to operate simultaneously in the same environment, effectively ensuring the accuracy of online monitoring information.

[0042] Furthermore, in order to avoid affecting the normal installation of the resistor and its insulation performance under high voltage, the radial contour of the wireless temperature measuring plate 2 needs to be completely covered by the radial contour of the resistor 1. Since the resistor 1 in this embodiment is a circular structure, it is only necessary to ensure that the maximum diameter of the wireless temperature measuring plate 2 is less than or equal to the diameter of the resistor 1.

[0043] Preferably, the resistor 1 can be made of ceramic or metal. In this embodiment, the resistor 1 is made of metal, and the maximum diameter of the wireless temperature measuring plate 2 is equal to the diameter of the resistor 1.

[0044] The insulating sleeve 3 is coaxially disposed on the outside of the resistor element, meaning the resistor element is coaxially encapsulated within the insulating sleeve 3. The insulating sleeve 3 includes a sleeve body and insulating caps respectively disposed at both ends of the sleeve body. The upper and lower ends of the resistor element are connected to the insulating caps at the upper and lower ends of the insulating sleeve 3 via flexible short connecting wires. Both the sleeve body and the insulating caps are preferably made of silicone rubber or ceramic material.

[0045] The wireless transmitter 7 communicates bidirectionally with the two wireless temperature sensors 5 on the wireless temperature measuring plate 2. The wireless temperature sensors 5 receive the sound waves emitted by the wireless transmitter 7 and send sound waves of different frequencies back to the wireless transmitter 7 according to the monitored temperature. The wireless transmitter 7 obtains the corresponding temperature information based on the sound wave signals sent by the wireless temperature sensors 5. The signal transmission method between the wireless temperature sensors 5 and the wireless transmitter 7 can achieve complete isolation between high and low voltage levels. In this embodiment, the wireless transmitter 7 preferably uses surface acoustic wave transmission.

[0046] The lower end of the steel support column 6 is grounded, and the upper end is connected to the insulating cover at the lower end of the insulating sleeve 3. The wireless transmitter 7 is installed on the steel support column 6, which can both ensure the grounding of the wireless transmitter 7 and enable long-distance acquisition of sound wave information.

[0047] The data acquisition device 9 has 485 communication function. The data acquisition device 9 is also installed on the steel support 6. It is connected to the wireless transmitter 7 through the coaxial cable 8. It is used to transmit the temperature information acquired by the wireless transmitter 7 to the data acquisition device 9, and then transmit it to the background for analysis or real-time monitoring.

[0048] The above description is only used to illustrate the technical solution of this utility model, and is not intended to limit it. For those skilled in the art, modifications can be made to the specific technical solutions described in the above embodiments, or equivalent substitutions can be made to some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions protected by this utility model.

Claims

1. A wireless temperature measuring plate, characterized in that: It includes an electrode plate (4) and two wireless temperature sensors (5); The electrode plate (4) has a conductive function and is used to contact the external component to be measured, so as to transfer the temperature of the external component to be measured to the electrode plate (4). Two wireless temperature sensors (5) are symmetrically arranged on both sides of the electrode plate (4) to monitor the temperature of the electrode plate (4).

2. The wireless temperature measuring plate according to claim 1, characterized in that: The electrode plate (4) is an aluminum electrode plate or a copper electrode plate; The wireless temperature sensor (5) is a passive sensor.

3. A wireless temperature measuring plate according to claim 1 or 2, characterized in that: The electrode plate (4) has flat cuts at symmetrical positions on both sides; Two wireless temperature sensors (5) are respectively set at the flat cut positions on both sides of the electrode plate (4).

4. A high-power resistor with an online monitoring device, characterized in that: It includes a resistor, an insulating sleeve (3) coaxially disposed on the outside of the resistor, a wireless transmitter (7), and a data acquisition device (9); The resistive element includes M resistive sheets (1) and N wireless temperature measuring plates (2) as described in any one of claims 1-3, where M≥4, N≥1, and M>N; the M resistive sheets (1) are stacked sequentially, and the wireless temperature measuring plates (2) are arranged radially between the resistive sheet (1) to be measured and the resistive sheet (1) adjacent to its upper or lower end. The wireless transmitter (7) communicates bidirectionally with the wireless temperature sensor (5) of the wireless temperature measuring plate (2). The wireless temperature sensor (5) receives the sound waves emitted by the wireless transmitter (7) and sends sound waves of different frequencies to the wireless transmitter (7) according to the different monitored temperatures. The wireless transmitter (7) obtains the corresponding temperature information according to the sound wave signal sent by the wireless temperature sensor (5). The wireless transmitter (7) is grounded and connected to the acquisition device (9) via a coaxial cable (8) to transmit the obtained temperature information to the acquisition device (9).

5. A high-power resistor with an online monitoring device according to claim 4, characterized in that: The resistor (1) has a circular structure; The maximum diameter of the wireless temperature measuring plate (2) is less than or equal to the diameter of the resistor (1).

6. A high-power resistor with an online monitoring device according to claim 5, characterized in that: The maximum diameter of the wireless temperature measuring plate (2) is equal to the diameter of the resistor (1).

7. A high-power resistor with an online monitoring device according to claim 4, characterized in that: The wireless transmitter (7) uses surface acoustic wave transmission.

8. A high-power resistor with an online monitoring device according to claim 7, characterized in that: It also includes steel pillars (6); The steel support column (6) is installed at the lower end of the insulating sleeve (3); Both the wireless transmitter (7) and the acquisition device (9) are mounted on the steel support (6).

9. A high-power resistor with an online monitoring device according to claim 8, characterized in that: The acquisition device (9) has 485 communication function.

10. A high-power resistor with an online monitoring device according to claim 4, characterized in that: The resistor (1) is made of ceramic or metal.

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