A composite wireless temperature measurement sensor and installation method thereof

Abstract

The present invention provides a composite wireless temperature sensor and an installation method thereof, wherein the composite wireless temperature sensor comprises: at least two sensor bodies, including a temperature sensing body and a control body which are electrically connected, wherein the sensor body is used to realize active temperature measurement or passive temperature measurement, the temperature sensing body is used to measure temperature, and the control body is used to convert signals and upload data; a fixing mechanism, including a relatively set fixed block, a bellows, a rotating assembly and a spring assembly, wherein the two ends of the bellows are respectively connected to the fixed block and the rotating assembly and are used to realize an adjustable angle between the fixed block and the rotating assembly, a card slot is provided in the fixed block, the control body is embedded in the card slot, and the two ends of the spring assembly are respectively connected to the opposite fixed block away from one end of the bellows through the card slot, and are used to realize clamping of the fixing mechanism; at least two fastening mechanisms, including side plates, multiple fastening blocks, multiple card balls and multiple special-shaped springs. The present invention realizes multi-position temperature measurement of the test piece through the fixing mechanism, with diversified data, convenient loading and unloading and practicality.

Description

Technical Field

[0001] The invention belongs to the technical field of temperature measuring sensors, and in particular relates to a composite wireless temperature measuring sensor and an installation method thereof. Background Art

[0002] The wireless temperature sensor consists of four parts: lithium battery, MCU, temperature sensor, and RF module. It adopts a fully digital working mode to solve the problem of online temperature detection of equipment. The wireless temperature sensor is suitable for temperature monitoring of contacts, busbars and other electrical contacts of high-voltage equipment such as high-voltage switchgear, transformers, and high-voltage cables in the power, steel, mining, petrochemical and other industries. Common monitoring locations include: three-side bushings of the main transformer, various wire clamps, knife switches, wall bushings, cable joints, capacitor surfaces, switches, contactor contacts, busbar connection points, various connection points in the switchgear, connection points with contact resistance of various high and low voltage equipment, and other locations.

[0003] In the prior art, wireless temperature sensors are mostly fixed to the outside of the test piece by a strap, and measure the temperature by penetrating into the test piece through a single contact. For example, the patent with the authorization announcement number CN207074088U discloses a wireless temperature sensor with electrical contacts, which fixes the sensor to the electrical contact by fastening the fixing strap and elastic strap in the fixing assembly. No auxiliary tools are required during installation, which is convenient and flexible. However, it can measure the temperature at the fixed position of the electrical contact, the data is single and it is only applicable to the test piece with a small temperature measurement area, and the scope of application is small. Summary of the invention

[0004] The object of the present invention is to provide a composite wireless temperature measuring sensor and an installation method thereof, which can realize multi-position temperature measurement of a test piece through a fixing mechanism, diversify data, and is convenient and practical to load and unload.

[0005] The present invention provides the following technical solutions:

[0006] The present application proposes a composite wireless temperature measurement sensor, comprising:

[0007] At least two sensor bodies, including a temperature sensing body and a control body that are electrically connected, wherein the sensor body is used to realize active temperature measurement or passive temperature measurement, the temperature sensing body is used to measure temperature, and the control body is used for signal conversion and data uploading;

[0008] The fixing mechanism comprises a fixing block, a bellows, a rotating assembly and a spring assembly which are relatively set up, the two ends of the bellows are respectively connected to the fixing block and the rotating assembly and are used to realize the adjustable angle between the fixing block and the rotating assembly, the fixing block is provided with a slot, the control body is embedded in the slot, the two ends of the spring assembly are respectively connected with the opposite fixing block away from the end of the bellows, and are used to realize the clamping of the fixing mechanism;

[0009] At least two fastening mechanisms include a side plate, a plurality of fastening blocks, a plurality of clamping balls and a plurality of special-shaped springs. The side plate is arranged on the side of the temperature sensing body away from the fixing mechanism, the fastening block is arranged on the side of the side plate opposite to the temperature sensing body, the clamping balls are arranged on the outside of the fastening blocks, and the special-shaped springs pass through adjacent clamping balls to form a closed loop and are used to clamp the workpiece to be tested.

[0010] Preferably, the control body is provided with a power module and includes a battery, a backup power supply and a female plug, the battery and the backup power supply are connected in parallel, and the backup power supply is connected to the female plug.

[0011] Preferably, a heat-conducting block is provided on the side of the fixing block opposite to the card slot, and heat-dissipating silica gel is provided on the outer side of the heat-conducting block.

[0012] Preferably, the heat conductive block is provided with a through hole, and the female plug passes through the through hole to connect to an external power source.

[0013] Preferably, the rotating assembly includes a fixed rod 1 and a fixed rod 2, wherein the fixed rod 1 is provided with a accommodating cavity, a sliding groove is provided on the opposite side of the inner wall of the accommodating cavity, and a leakage groove is provided at the sliding groove near the opening of the accommodating cavity, and a slider is provided at one end of the fixed rod 2 near the fixed rod 1, and the slider slides in the sliding groove and is clamped in the leakage groove, so that the fixed rod 1 and the fixed rod 2 are rotatably connected.

[0014] Preferably, the cross section of the slider is T-shaped and the diameter of the side away from the second fixing rod is larger than the diameter of the side close to the second fixing rod.

[0015] Preferably, both ends of the special-shaped spring are provided with hooks, and the special-shaped spring is connected to adjacent special-shaped springs through the hooks after passing through the clamping ball.

[0016] Preferably, the temperature sensing body is flat or arc-shaped, and a bottom plate with the same shape as the temperature sensing body is provided on the side of the side plate opposite to the temperature sensing body. The fastening block is provided on the side of the bottom plate away from the side plate and a spacing is provided between adjacent fastening blocks. A clamp is provided on the end of the fastening block away from the side plate and is used to clamp the test piece through a fastener.

[0017] Based on the above composite wireless temperature measurement sensor, the present application also proposes an installation method using the above composite wireless temperature measurement sensor, comprising the following steps:

[0018] S1. Select the shape of the temperature sensor according to the cross-sectional shape of the test piece. If the test piece is a square cylinder, a flat temperature sensor is used. If the test piece is a cylinder, an arc-shaped temperature sensor is used.

[0019] S2. According to the usage scenario, select the power supply mode of the power modules of the control bodies on both sides as active or passive;

[0020] S3. Push the second fixed rod and make the slider stuck in the drain groove. According to the measurement position of the test piece, rotate the bellows to lengthen or shorten it and adjust the angle between the first and second fixed rods;

[0021] S4. Determine the number of special-shaped springs according to the diameter of the test piece;

[0022] S5. Pass the test piece through the fastening block, bottom plate, side plate and temperature sensor in sequence, connect the hooks at both ends of the closed loop composed of the special-shaped spring, pass the fastener through the fastening block and clamp the fastener with the clamp, splice multiple fastening blocks to form an external protective structure of the test piece, reinforce the test piece and make the temperature sensor fit the outer wall of the test piece, and measure the temperature from multiple positions;

[0023] S6. The temperature sensing body uploads the measurement data to the control body, which converts and transmits the temperature signal.

[0024] The beneficial effects of the present invention are:

[0025] 1. Through the cooperation of the rotating assembly, bellows and fixed block, at least two sensor bodies are used to measure the temperature of different parts of the test piece, and the highest temperature, lowest temperature and average temperature of the test piece are obtained by comparison. The data is diversified, and the sensor body on one side can be selected as a spare sensor to increase the service life. At the same time, the sensor body can select active mode or passive mode according to the actual application scenario, which is practical and easy to use;

[0026] 2. The test piece passes through the fastening block, bottom plate, side plate and temperature sensor in turn. The fastening blocks are spliced ​​to form an external protective structure, and are reinforced by fasteners, closed-loop special-shaped springs and spring assemblies, making loading and unloading convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 It is a schematic diagram of the connection of the sensor body of the present invention;

[0029] Figure 2 is a schematic diagram of the connection of the rotating assembly of the present invention;

[0030] Figure 3 It is a schematic diagram of the connection of the slider of the present invention;

[0031] Figure 4 It is a connection schematic diagram of the fastening mechanism of the present invention.

[0032] Marked in the figure: 1. Sensor body, 11. Temperature sensing body, 12. Control body, 13. Power module, 131. Female plug, 2. Fixing mechanism, 21. Fixing block, 211. Card slot, 212. Heat conducting block, 213. Through hole, 22. Bellows, 23. Spring assembly, 3. Rotating assembly, 31. Fixing rod 1, 311. Slide slot, 312. Leakage slot, 32. Fixing rod 2, 321. Slider, 4. Fastening mechanism, 41. Side plate, 42. Fastening block, 421. Card head, 43. Card ball, 44. Special-shaped spring, 441. Hook, 45. Bottom plate. DETAILED DESCRIPTION

[0033] Embodiment 1

[0034] The present application proposes a composite wireless temperature measurement sensor, comprising:

[0035] like Figure 1 As shown, at least two sensor bodies 1 include a temperature sensing body 11 and a control body 12 which are electrically connected. The sensor body 1 is used to measure temperature, the temperature sensing body 11 is used to measure temperature, and the control body 12 is used for signal conversion and data upload. A power module 13 is provided in the control body 12 and includes a battery, a backup power supply and a female plug 131. The battery is connected in parallel with the backup power supply, and the backup power supply is connected to the female plug 131. The temperature sensing body 11 is flat or arc-shaped.

[0036] like Figure 1-3 As shown, the fixing mechanism 2 comprises a fixing block 21, a bellows 22, a rotating assembly 3 and a spring assembly 23 which are relatively set up. The two ends of the bellows 22 are respectively connected to the fixing block 21 and the rotating assembly 3 and are used to realize the angle between the fixing block 21 and the rotating assembly 3 to be adjustable. A clamping groove 211 is provided in the fixing block 21, and the control body 12 is embedded in the clamping groove 211. The two ends of the spring assembly 23 are respectively connected with the opposite end of the fixing block 21 away from the bellows 22 and are used to realize the clamping of the fixing mechanism 2. The rotating assembly 3 comprises a fixing rod 1 31 and a fixing rod 2 32. The fixing rod 1 31 is provided with a receiving cavity. A slide groove 311 is provided on the opposite side of the inner wall of the receiving cavity, and a leakage groove 312 is provided near the opening of the receiving cavity. A slider 321 is provided relatively near one end of the fixing rod 1 31 on the fixing rod 2 32. The slider 321 slides in the slide groove 311 and is clamped in the leakage groove 312, so that the fixing rod 1 31 is rotatably connected with the fixing rod 2 32.

[0037] like Figure 4As shown, at least two fastening mechanisms 4 include a side plate 41, a plurality of fastening blocks 42, a plurality of clamping balls 43 and a plurality of special-shaped springs 44. The side plate 41 is arranged on the side of the temperature sensing body 11 away from the fixing mechanism 2. The fastening block 42 is arranged on the side of the side plate 41 opposite to the temperature sensing body 11. The clamping balls 43 are arranged on the outside of the fastening blocks 42. The special-shaped springs 44 pass through adjacent clamping balls 43 to form a closed loop and are used to clamp the test piece. A bottom plate 45 having the same shape as the temperature sensing body 11 is arranged on the side of the side plate 41 opposite to the temperature sensing body 11. The fastening block 42 is arranged on the side of the bottom plate 45 away from the side plate 41 and a spacing is arranged between adjacent fastening blocks 42. A clamping head 421 is arranged on the end of the fastening block 42 away from the side plate 41 and is used to clamp the test piece through a fastener. Hooks 441 are arranged at both ends of the special-shaped springs 44. After passing through the clamping balls 43, the special-shaped springs 44 are connected to adjacent special-shaped springs 44 through the hooks 441.

[0038] like Figure 1-4 As shown, based on the above composite wireless temperature measurement sensor, the present application also proposes an installation method using the above composite wireless temperature measurement sensor, comprising the following steps:

[0039] S1. Select the shape of the temperature sensor 11 according to the cross-sectional shape of the object to be tested. If the object to be tested is a square cylinder, a flat temperature sensor 11 is used. If the object to be tested is a cylinder, an arc-shaped temperature sensor 11 is used to ensure that the temperature sensor 11 can fit the outer wall of the object to be tested.

[0040] S2. According to the usage scenario, select the power supply mode of the power modules 13 of the control bodies 12 on both sides as active or passive.

[0041] S3. Push the second fixing rod 32 and make the slider 321 clamped in the leakage groove 312. According to the measuring position of the piece to be tested, rotate and lengthen or shorten the bellows 22, and adjust the angle between the first fixing rod 31 and the second fixing rod 32. For example, if the piece to be tested is a square cylinder, the angle between the rotating components 3 can be 90°, 180°, and 270°. If the piece to be tested is a cylindrical piece, the angle range between the rotating components 3 is (0°, 360°), and the temperature sensing body 11 can fit the outer wall of the piece to be tested.

[0042] S4. Determine the number of the special-shaped springs 44 according to the diameter of the workpiece to be tested. Generally, the number of the special-shaped springs 44 is less than or equal to the number of the fastening blocks 42 to fasten the workpiece to be tested in the radial direction.

[0043] S5. Pass the piece to be tested through the fastening block 42, the bottom plate 45, the side plate 41 and the temperature sensor 11 in sequence, connect the hooks 441 at both ends of the closed loop composed of the special-shaped springs 44, pass the fastener through the fastening block 42 and clamp the fastener with the clamp 421, and splice multiple fastening blocks 42 to form an external protective structure of the piece to be tested, reinforce the piece to be tested and make the temperature sensor 11 fit the outer wall of the piece to be tested, measure the temperature from multiple positions, and measure the highest temperature, lowest temperature and average temperature of the piece to be tested, with diversified data.

[0044] S6. The temperature sensing body 11 uploads the measurement data to the control body 12, and the control body 12 converts and transmits the temperature signal.

[0045] Embodiment 2

[0046] like Figure 1 and Figure 3 As shown, the difference between this embodiment and the first embodiment is that a heat-conducting block 212 is provided on the side opposite to the fixing block 21 and the card slot 211, and a heat-dissipating silica gel is provided on the outside of the heat-conducting block 212, which is convenient for heat dissipation of the control body 12 and avoids affecting the normal operation of the control body 12. A through hole 213 is provided on the heat-conducting block 212, and the female plug 131 passes through the through hole 213 to connect to an external power supply, which is convenient for active temperature measurement. The cross-section of the slider 321 is T-shaped, and the diameter of the side away from the fixing rod 2 32 is larger than the diameter of the side close to the fixing rod 2 32, so as to prevent the fixing rod 2 32 from falling off from the fixing rod 1 31 and affecting the measurement efficiency.

[0047] Other technical features and technical principles of this embodiment are the same as those of the first embodiment.

[0048] Embodiment 3

[0049] The difference between this embodiment and the second embodiment is that the sensor bodies 1 on both sides can be both actively powered, both passively powered, or one side actively powered and the other side passively powered. The selection is made according to the actual scenario and cost, which is practical. The sensor body 1 on one side can also be selected as a backup sensor to continue online temperature measurement when the sensor body 1 on the other side is damaged, thereby increasing the service life. The other technical features and technical principles of this embodiment are the same as those of the first embodiment.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A composite wireless temperature sensor, Features: include: At least two sensor bodies, including a temperature sensing body and a control body that are electrically connected, wherein the sensor body is used to realize active temperature measurement or passive temperature measurement, the temperature sensing body is used to measure temperature, and the control body is used for signal conversion and data uploading; The fixing mechanism comprises a fixing block, a bellows, a rotating assembly and a spring assembly which are relatively set up, the two ends of the bellows are respectively connected to the fixing block and the rotating assembly and are used to realize the adjustable angle between the fixing block and the rotating assembly, the fixing block is provided with a slot, the control body is embedded in the slot, the two ends of the spring assembly are respectively connected with the opposite fixing block away from the end of the bellows, and are used to realize the clamping of the fixing mechanism; At least two fastening mechanisms, including a side plate, a plurality of fastening blocks, a plurality of clamping balls and a plurality of special-shaped springs, wherein the side plate is arranged on the side of the temperature sensing body away from the fixing mechanism, the fastening block is arranged on the side of the side plate opposite to the temperature sensing body, the clamping balls are arranged outside the fastening blocks, and the special-shaped springs pass through adjacent clamping balls to form a closed loop and are used to clamp the test piece; The rotating assembly comprises a fixed rod 1 and a fixed rod 2, wherein a receiving cavity is arranged in the fixed rod 1, a slide groove is arranged on the opposite sides of the inner wall of the receiving cavity, and a leakage groove is arranged near the opening of the receiving cavity, and a slider is arranged opposite to one end of the fixed rod 2 near the fixed rod 1, and the slider slides in the slide groove and is clamped in the leakage groove, so that the fixed rod 1 is rotatably connected with the fixed rod 2; The temperature sensing body is flat or arc-shaped, and a bottom plate with the same shape as the temperature sensing body is provided on the side of the side plate opposite to the temperature sensing body. The fastening block is provided on the side of the bottom plate away from the side plate and a spacing is provided between adjacent fastening blocks. A clamp is provided on the end of the fastening block away from the side plate and is used to clamp the test piece through a fastener.

2. The composite wireless temperature sensor according to claim 1, Features: The control body is provided with a power module including a battery, a backup power supply and a female plug. The battery is connected in parallel with the backup power supply, and the backup power supply is connected to the female plug.

3. The composite wireless temperature sensor according to claim 2, Features: A heat-conducting block is arranged on the side of the fixing block opposite to the card slot, and heat-dissipating silica gel is arranged on the outer side of the heat-conducting block.

4. The composite wireless temperature sensor according to claim 3, Features: The heat-conducting block is provided with a through hole, and the female plug passes through the through hole to connect to an external power supply.

5. The composite wireless temperature sensor according to claim 1, Features: The cross section of the slider is T-shaped, and the diameter of the side away from the second fixing rod is larger than the diameter of the side close to the second fixing rod.

6. The composite wireless temperature sensor according to claim 1, Features: Both ends of the special-shaped spring are provided with hooks, and the special-shaped spring is connected with adjacent special-shaped springs through the hooks after passing through the clamping ball.

7. A method for installing the composite wireless temperature sensor according to any one of claims 1 to 6, Features: The steps include: S1. Select the shape of the temperature sensor according to the cross-sectional shape of the test piece. If the test piece is a square cylinder, a flat temperature sensor is used. If the test piece is a cylinder, an arc-shaped temperature sensor is used. S2. According to the usage scenario, select the power supply mode of the power modules of the control bodies on both sides as active or passive; S3. Push the second fixed rod and make the slider stuck in the drain groove. According to the measurement position of the test piece, rotate the bellows to lengthen or shorten it and adjust the angle between the first and second fixed rods; S4. Determine the number of special-shaped springs according to the diameter of the test piece; S5. Pass the test piece through the fastening block, bottom plate, side plate and temperature sensor in sequence, connect the hooks at both ends of the closed loop composed of the special-shaped spring, pass the fastener through the fastening block and clamp the fastener with the clamp, splice multiple fastening blocks to form an external protective structure of the test piece, reinforce the test piece and make the temperature sensor fit the outer wall of the test piece, and measure the temperature from multiple positions; S6. The temperature sensing body uploads the measurement data to the control body, which converts and transmits the temperature signal.

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