Intelligent monitoring system for high-temperature cable

Abstract

The invention discloses an intelligent monitoring system for a high-temperature cable, and relates to the technical field of cable operation monitoring. According to the invention, the light emitted by the laser can reach the photoresistor only after being reflected by a plurality of reflectors, so that the propagation path of the light is greatly prolonged, and the photoresistor cannot receive the light only when the laser deflects slightly, thereby improving the sensitivity of temperature monitoring. The high-sensitivity monitoring mode can trigger early warning when the temperature of the cable is slightly increased, and normal operation of power supply equipment is prevented from being affected due to the fact that the temperature of the cable is too high. And an elastic drawstring is designed to be matched with a tensioning swing arm, so that the laser can automatically return to an initial state after being influenced by external force, and the long-term stability of the monitoring device is kept. Meanwhile, when the photoresistor or the laser device is damaged, the system cannot receive the optical signal, and the design can remind the temperature abnormity and can also remind the equipment failure.

Description

Technical Field

[0001] The present invention relates to the technical field of cable operation monitoring, in particular to an intelligent monitoring system for high-temperature cables. Background Art

[0002] Most existing cable temperature monitoring devices rely on electronic sensors, such as thermocouples or temperature sensors, to determine the working status of the cable by directly detecting the temperature on the surface or inside of the cable. However, these electronic sensors have disadvantages such as slow response speed, insufficient sensitivity, and susceptibility to environmental interference. For example, thermocouples require a certain temperature change amplitude to generate sufficient potential difference for detection, while temperature sensors are easily affected by external electromagnetic interference, resulting in inaccurate measurement results.

[0003] The existing technology also has the problem of low temperature monitoring accuracy. Many monitoring devices are difficult to accurately monitor the temperature of the cable when used in actual high-temperature environments, and often lose accuracy due to sensor hysteresis or fatigue. In addition, most existing devices lack automatic calibration or adaptive functions, and are prone to deviations due to long-term use, affecting the safety of cable operation. Summary of the invention

[0004] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: an intelligent monitoring system for high-temperature cables, comprising a mounting seat, a heat-receiving heat-conducting cavity and a side panel are fixed on the mounting seat, wherein the heat-receiving heat-conducting cavity is fixedly connected to a piston tube, a piston block is provided in the piston tube for sliding sealing, and is used to push a trigger component, the heat-receiving heat-conducting cavity is contact-built between a top heat-conducting copper plate and a bottom heat-conducting copper plate, the top heat-conducting copper plate and the bottom heat-conducting copper plate form a cylindrical tube, two semicircular heat-conducting tubes are provided in the cylindrical tube, and the two semicircular heat-conducting tubes can wrap the cable; the trigger component comprises a light-shielding shell fixed on the side panel, the light-shielding shell and the side panel enclose a dark space, a plurality of reflectors are provided on both sides of the inner wall of the light-shielding shell, all the reflectors are used to reflect the light emitted by the laser to the photoresistor, so as to extend the propagation distance of the light, wherein the photoresistor is fixed on the side panel.

[0005] Preferably, grooves for accommodating the heat-conducting cavity are provided on the opposite surfaces of the top heat-conducting copper plate and the bottom heat-conducting copper plate, and thermal grease is provided between the semicircular heat-conducting tube and the cable.

[0006] Preferably, a U-shaped frame is fixedly mounted on the mounting seat, a planetary gearbox is fixedly mounted on the U-shaped frame, an execution drive gear is fixedly mounted on the input shaft of the planetary gearbox, an execution drive rack is slidably mounted on the U-shaped frame, the execution drive rack is meshed with the execution drive gear for transmission, and the execution drive rack is fixedly matched with the piston block.

[0007] Preferably, a trigger rack bracket is fixedly mounted on the U-shaped frame, a trigger rack is slidably mounted on the trigger rack bracket, and a trigger gear meshing with the trigger rack is fixedly mounted on the output shaft of the planetary gearbox.

[0008] Preferably, an extension arm is fixedly mounted on the U-shaped frame, a laser is rotatably mounted on the extension arm, and a limit rod is fixedly mounted on the extension arm, the limit rod is in contact with the laser to limit the swing angle of the laser.

[0009] Preferably, a tensioning swing arm is rotatably mounted on the extension arm, and the tensioning swing arm is fixedly matched with the laser via a rotating shaft so as to make the tensioning swing arm and the laser swing synchronously.

[0010] Preferably, an elastic pull belt is elastically installed between the end of the tensioning swing arm away from the rotating shaft and the extension arm, which is used to drive the laser to swing toward the limit rod. A corner plate is also fixedly installed on the laser, which contacts and cooperates with the top end of the trigger rack, so as to drive the laser to swing in the direction away from the limit rod.

[0011] Preferably, it also includes a base and a buckle seat, which are fastened together by screws, wherein the top thermal conductive copper plate and the bottom thermal conductive copper plate are arranged between the base and the buckle seat, and an external protective light-shielding shell is also fixed on the base, wherein the mounting seat is arranged inside the external protective light-shielding shell, and the mounting seat is fixedly matched with the base.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention requires the light emitted by the laser to be reflected by multiple reflectors before it can reach the photoresistor. This design greatly extends the propagation path of the light, so that the laser only needs to undergo a very small deflection to cause the photoresistor to be unable to receive the light, thereby improving the sensitivity of temperature monitoring. This highly sensitive monitoring method can trigger an early warning when the cable temperature rises slightly, preventing the cable from affecting the normal operation of the power supply equipment due to excessive temperature; (2) The present invention designs the coordination of the elastic drawstring and the tightening swing arm, so that the laser can automatically return to the initial state after being affected by external force, thereby maintaining the long-term stability of the monitoring device. At the same time, when the photoresistor or laser is damaged, the system is also unable to receive the optical signal. This design can not only remind of temperature abnormalities, but also prompt equipment failures, realizing the adaptive and protective functions of the equipment; (3) The present invention uses a thermally conductive copper plate and thermally conductive silicone grease to timely transmit the temperature changes inside the cable to the heat-receiving heat-conducting cavity, and drives the action of the entire mechanical system through the pressure changes of the piston tube, and finally reflects the temperature changes through the deflection of the laser. This design can quickly respond to changes in cable temperature, provide real-time monitoring and feedback, and ensure the safety and reliability of the cable under high-temperature working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the structure of the heat-conducting copper plate of the present invention.

[0015] Figure 3 It is a schematic diagram of the structure of the external protective light-shielding shell of the present invention.

[0016] Figure 4 It is a structural schematic diagram of the mounting seat of the present invention.

[0017] Figure 5 This is a diagram showing the arrangement of the reflector structure of the present invention.

[0018] Figure 6 It is a schematic diagram of the structure of the trigger rack bracket of the present invention.

[0019] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at point A in the middle.

[0020] Figure 8 It is a schematic diagram of the corner plate structure of the present invention.

[0021] Fig. 9 It is a schematic diagram of the structure of the piston tube of the present invention.

[0022] In the figure: 101-base; 102-buckle seat; 103-top heat-conducting copper plate; 104-bottom heat-conducting copper plate; 105-semicircular heat-conducting tube; 106-heat-receiving heat-conducting cavity; 107-external protective light-shielding shell; 108-mounting seat; 109-side panel; 110-light-shielding shell; 111-photoresistor; 112-reflector; 113-piston tube; 114-U-shaped frame; 115-extension arm; 116-elastic drawstring; 117-tensioning swing arm; 118-rotating shaft; 119-laser; 120-limiting rod; 121-corner plate; 122-trigger rack; 123-trigger rack bracket; 124-planetary gearbox; 125-trigger gear; 126-execution drive rack; 127-piston block; 128-execution drive gear. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-9 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0024] The present invention provides an intelligent monitoring system for high-temperature cables, including a mounting base 108, on which a heat-receiving heat-conducting cavity 106 and a side panel 109 are fixed, wherein the heat-receiving heat-conducting cavity 106 is fixedly connected to a piston tube 113, and a piston block 127 is provided in the piston tube 113 for sliding and sealing to push a trigger component, and the heat-receiving heat-conducting cavity 106 is contact-laid between a top heat-conducting copper plate 103 and a bottom heat-conducting copper plate 104, and the top heat-conducting copper plate 103 and the bottom heat-conducting copper plate 104 form a cylindrical tube, and the inside of the cylindrical tube is provided with a piston block 127 for pushing a trigger component, and the heat-receiving heat-conducting cavity 106 is contact-laid between a top heat-conducting copper plate 103 and a bottom heat-conducting copper plate 104, and the top heat-conducting copper plate 103 and the bottom heat-conducting copper plate 104 form a cylindrical tube, and the inside of the cylindrical tube is provided with a piston block 127 for sliding and sealing to push ...conducting cavity 106 is contact-laid between a top heat-conducting copper plate 103 and a bottom heat-conducting copper plate 104, and the top heat-conducting copper plate 103 and the bottom heat-conducting copper plate 1 Two semicircular heat-conducting tubes 105 are provided, and the two semicircular heat-conducting tubes 105 can wrap the cable; the trigger component includes a light-shielding shell 110 fixed on the side panel 109, and the light-shielding shell 110 and the side panel 109 enclose a dark space, and multiple reflectors 112 are provided on both sides of the inner wall of the light-shielding shell 110, and all the reflectors 112 are used to reflect the light emitted by the laser 119 to the photoresistor 111, so as to extend the propagation distance of the light, wherein the photoresistor 111 is fixed on the side panel 109. Grooves for accommodating the heat-conducting cavity 106 are provided on the opposite surfaces of the top heat-conducting copper plate 103 and the bottom heat-conducting copper plate 104, and thermal grease is provided between the semicircular heat-conducting tube 105 and the cable. A U-shaped frame 114 is also fixedly mounted on the mounting seat 108, a planetary gearbox 124 is fixedly mounted on the U-shaped frame 114, an execution drive gear 128 is fixedly mounted on the input shaft of the planetary gearbox 124, an execution drive rack 126 is also slidably mounted on the U-shaped frame 114, the execution drive rack 126 is meshed with the execution drive gear 128 for transmission, wherein the execution drive rack 126 is fixedly matched with a piston block 127. A trigger rack bracket 123 is also fixedly mounted on the U-shaped frame 114, a trigger rack 122 is slidably mounted on the trigger rack bracket 123, and a trigger gear 125 meshed with the trigger rack 122 is fixedly mounted on the output shaft of the planetary gearbox 124. An extension arm 115 is also fixedly mounted on the U-shaped frame 114, a laser 119 is rotatably mounted on the extension arm 115, and a limit rod 120 is also fixedly mounted on the extension arm 115, the limit rod 120 is in contact with the laser 119 and is used to limit the swing angle of the laser 119. A tensioning swing arm 117 is also rotatably mounted on the extension arm 115, and the tensioning swing arm 117 is fixedly matched with the laser 119 via a rotating shaft 118, so as to make the tensioning swing arm 117 and the laser 119 swing synchronously. An elastic drawstring 116 is elastically mounted between the end of the tensioning swing arm 117 away from the rotating shaft 118 and the extension arm 115, so as to drive the laser 119 to swing toward the limit rod 120. A corner plate 121 is also fixedly mounted on the laser 119, and the corner plate 121 contacts and matches with the top end of the trigger rack 122, so as to drive the laser 119 to swing in a direction away from the limit rod 120.It also includes a base 101 and a buckle seat 102, which are fastened together by screws, wherein a top heat-conducting copper plate 103 and a bottom heat-conducting copper plate 104 are arranged between the base 101 and the buckle seat 102, and an external protective light-shielding shell 107 is also fixed on the base 101, wherein a mounting seat 108 is arranged inside the external protective light-shielding shell 107, and the mounting seat 108 is fixedly matched with the base 101.

[0025] The working principle of the intelligent monitoring system for high-temperature cables disclosed in the present invention is as follows: select a semicircular heat-conducting tube 105 that is compatible with the outer diameter of the cable, then cover the surface of the cable with thermal grease, buckle the two halves of the semicircular heat-conducting tube 105 on the cable, and then fasten the buckle seat 102 and the base 101 with screws, and the installation is completed at this time.

[0026] When working, the working environment of the cable is a high temperature environment, or the high load working state will generate high temperature. These temperatures will seriously affect the resistivity of the cable, thereby generating a voltage drop and affecting the performance of the power supply equipment. Therefore, it is necessary to monitor these high temperature and high load cables. When the temperature of the cable rises, the temperature inside the cable will be transferred to the top thermal copper plate 103 and the bottom thermal copper plate 104 through the thermal grease and the semicircular thermal tube 105, and then transferred to the heat-receiving heat-receiving cavity 106 (the contact surface between the top thermal copper plate 103 and the bottom thermal copper plate 104 and the heat-receiving heat-receiving cavity 106 is also provided with thermal grease). After the heat-receiving heat-receiving cavity 106 is heated, the internal pressure will increase. Since the heat-receiving heat-receiving cavity 106 is connected to the inside of the piston tube 113, the pressure inside the piston tube 113 will also increase. Therefore, under the action of pressure, the piston block 127 will be pushed to move, and the movement of the piston block 127 will drive the execution drive gear 128 to rotate, and the execution drive gear 128 will rotate. The driving gear 128 drives the input shaft of the planetary gearbox 124 to rotate, and the output shaft of the planetary gearbox 124 drives the trigger gear 125 to rotate, and the trigger gear 125 drives the trigger rack 122 to slide. Therefore, the greater the pressure inside the heat-conducting cavity 106 and the piston tube 113, the higher the working temperature of the cable. At the same time, the displacement of the piston block 127 inside the piston tube 113 is greater, and the execution drive rack 126 drives the execution drive gear 128 to rotate more circles, and the displacement of the trigger rack 122 is greater. When the trigger rack 122 moves to contact the corner plate 121, the trigger rack 122 will push the corner plate 121 to swing.

[0027] Since the corner plate 121 is fixed to the laser 119, the laser 119 will rotate and swing around the rotating shaft 118, and the laser 119 will be separated from the limit rod 120. At the same time, since the tensioning swing arm 117 rotates synchronously with the laser 119, the tensioning swing arm 117 will pull the elastic drawstring 116, so that the elastic drawstring 116 is in a stretched state. The swinging of the laser 119 will cause the light emitted by it to be deflected. Since the light emitted by the laser 119 is reflected multiple times by the multiple reflectors 112 before reaching the photoresistor 111 (therefore, the propagation path of the light is long, resulting in the laser 119 only having to be slightly deflected, and the light of the laser 119 cannot be transmitted to the photoresistor 111, thereby improving the sensitivity of temperature monitoring), in the default state, the photoresistor 111 can receive the light emitted by the laser 119, thereby knowing that the laser 119 has not swung. On the contrary, if the laser 119 swung, it means that the temperature of the cable is too high. Therefore, it is only necessary to determine whether there is light on the photoresistor 111 to know whether the temperature of the cable exceeds the standard (if the photoresistor 111 or the laser 119 is damaged, no signal can be received, which serves to remind the device of damage).

Claims

1. An intelligent monitoring system for high temperature cables, characterized in that: The invention comprises a mounting seat (108), a heat-receiving heat-conducting cavity (106) and a side panel (109) being fixed on the mounting seat (108), wherein the heat-receiving heat-conducting cavity (106) is fixedly connected to a piston tube (113), a piston block (127) is provided in a sliding seal in the piston tube (113) for pushing a trigger component, the heat-receiving heat-conducting cavity (106) is contact-connected and spanned between a top heat-conducting copper plate (103) and a bottom heat-conducting copper plate (104), the top heat-conducting copper plate (103) and the bottom heat-conducting copper plate (104) forming a cylindrical tube, two semicircular heat-conducting tubes (105) are provided in the cylindrical tube, and the two semicircular heat-conducting tubes (105) are capable of wrapping a cable; The trigger assembly comprises a light shielding shell (110) fixed on the side panel (109), the light shielding shell (110) and the side panel (109) enclose a dark space, a plurality of reflectors (112) are arranged on both sides of the inner wall of the light shielding shell (110), all the reflectors (112) are used to reflect the light emitted by the laser (119) onto the photoresistor (111), so as to extend the propagation distance of the light, wherein the photoresistor (111) is fixed on the side panel (109).

2. The intelligent monitoring system for high temperature cables according to claim 1, characterized in that: Grooves for accommodating a heat-receiving heat-conducting cavity (106) are provided on opposite surfaces of the top heat-conducting copper plate (103) and the bottom heat-conducting copper plate (104), and heat-conducting silicone grease is provided between the semicircular heat-conducting tube (105) and the cable.

3. The intelligent monitoring system for high temperature cables according to claim 2 is characterized in that: A U-shaped frame (114) is also fixedly mounted on the mounting seat (108), a planetary gearbox (124) is fixedly mounted on the U-shaped frame (114), an execution drive gear (128) is fixedly mounted on the input shaft of the planetary gearbox (124), an execution drive rack (126) is also slidably mounted on the U-shaped frame (114), the execution drive rack (126) and the execution drive gear (128) are meshed for transmission, wherein the execution drive rack (126) is fixedly matched with a piston block (127).

4. The intelligent monitoring system for high temperature cables according to claim 3 is characterized in that: A trigger rack bracket (123) is fixedly mounted on the U-shaped frame (114), a trigger rack (122) is slidably mounted on the trigger rack bracket (123), and a trigger gear (125) meshing with the trigger rack (122) is fixedly mounted on the output shaft of the planetary gearbox (124).

5. The intelligent monitoring system for high temperature cables according to claim 4, characterized in that: An extension arm (115) is also fixedly mounted on the U-shaped frame (114), a laser (119) is rotatably mounted on the extension arm (115), and a limit rod (120) is also fixedly mounted on the extension arm (115), the limit rod (120) is in contact with the laser (119) and is used to limit the swing angle of the laser (119).

6. The intelligent monitoring system for high temperature cables according to claim 5, characterized in that: A tensioning swing arm (117) is also rotatably mounted on the extension arm (115); the tensioning swing arm (117) and the laser (119) are fixedly matched via a rotating shaft (118) so as to enable the tensioning swing arm (117) and the laser (119) to swing synchronously.

7. The intelligent monitoring system for high temperature cables according to claim 6, characterized in that: An elastic pull belt (116) is elastically installed between one end of the tension swing arm (117) away from the rotating shaft (118) and the extension arm (115) for driving the laser (119) to swing toward the limit rod (120). A corner plate (121) is also fixedly installed on the laser (119). The corner plate (121) is in contact with the top end of the trigger rack (122) for driving the laser (119) to swing in a direction away from the limit rod (120).

8. The intelligent monitoring system for high temperature cables according to claim 7, characterized in that: It also includes a base (101) and a buckle seat (102), wherein the base (101) and the buckle seat (102) are fastened together by screws, wherein a top heat-conducting copper plate (103) and a bottom heat-conducting copper plate (104) are arranged between the base (101) and the buckle seat (102), and an external protective light-shielding shell (107) is also fixed on the base (101), wherein a mounting seat (108) is arranged inside the external protective light-shielding shell (107), and the mounting seat (108) is fixedly matched with the base (101).

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