High-voltage cable partial discharge temperature integrated detection device

Abstract

The utility model provides a high-voltage cable partial discharge temperature integrated detection device. The high-voltage cable partial discharge temperature integrated detection device is used for detecting partial discharge information of a cable, the high-voltage cable partial discharge temperature integrated detection device comprises a shell assembly, an acquisition unit and a processing unit, the shell assembly comprises a shell and a metal net, the shell encloses a containing cavity, the metal net is arranged in the containing cavity, and the metal net is arranged in the containing cavity. The metal net is attached to the inner periphery of the shell, the acquisition unit is arranged in the accommodating cavity, and the acquisition unit is used for acquiring partial discharge information of an external cable; and the processing unit is electrically connected with the acquisition unit and is used for processing the partial discharge information acquired by the acquisition unit. The high-voltage cable partial discharge temperature integrated detection device can accurately detect the partial discharge information of the cable.

Description

Technical Field

[0001] This application relates to the technical field of power detection equipment, and particularly relates to a high-voltage cable partial discharge temperature integrated detection device. Background Art

[0002] A cable is a device for transmitting electric energy or signals and plays an extremely important bridging role in high-voltage lines. When common cable joints are made, the wires inside two cables to be butt-jointed are usually butt-jointed one by one and then insulated and wrapped. At the middle joint of the cable, the electric field strength is high enough. When a wire shows loose connection and heat generation, it may cause the cable to be punctured, that is, a partial discharge problem occurs, thus leading to safety accidents in high-voltage lines. Commonly, a high-voltage cable partial discharge temperature integrated detection device is used to capture the partial discharge information of the cable. However, during the process of detecting the partial discharge of the cable, the high-voltage cable partial discharge temperature integrated detection device is easily affected by electromagnetic interference, which affects the detection results. Summary of the Utility Model

[0003] In view of this, this application provides a high-voltage cable partial discharge temperature integrated detection device, which can accurately detect the partial discharge information of the cable.

[0004] This application provides a high-voltage cable partial discharge temperature integrated detection device for detecting the partial discharge information of a cable. The high-voltage cable partial discharge temperature integrated detection device includes: a housing assembly, a collection unit, and a processing unit. The housing assembly includes a housing and a metal mesh. The housing encloses a receiving cavity. The metal mesh is attached to the inner circumference of the housing. The collection unit is disposed in the receiving cavity and is used for collecting the partial discharge information of an external cable. The processing unit is electrically connected to the collection unit and is used for processing the partial discharge information collected by the collection unit.

[0005] Further, the collection unit has at least one collection port for electrically connecting to an external cable. The housing assembly has at least one through hole that sequentially penetrates the housing and the metal mesh. The collection port extends to the outside of the receiving cavity through the through hole. The housing assembly further includes conductive cotton. When the collection port penetrates the through hole, the conductive cotton seals the gap of the through hole.

[0006] Further, the high-voltage cable partial discharge temperature integrated detection device further includes an isolation frame fixedly disposed in the receiving cavity. The isolation frame has a plurality of receiving sub-cavities arranged in sequence along a preset direction. The collection unit includes a plurality of collection sub-units, and each collection sub-unit is respectively disposed in one of the receiving sub-cavities.

[0007] Furthermore, the acquisition subunit is selected from one of a temperature acquisition subunit, an ultrasonic acquisition subunit, a high-frequency current acquisition subunit, an optical radiation acquisition subunit, and an electromagnetic wave acquisition subunit.

[0008] Furthermore, the integrated partial discharge temperature detection device for high-voltage cables further includes an infrared detector and a display screen. Both the infrared detector and the display screen are electrically connected to the processing unit. The infrared detector is disposed on the surface of the housing facing away from the receiving cavity, and the display screen is embedded in the housing with a part thereof exposed. The infrared detector receives the infrared radiation information of the external cable and converts it into an electrical signal. The processing unit processes the electrical signal output by the infrared detector to form a thermal image, and the display screen is used to display the thermal image.

[0009] Furthermore, the processing unit further includes a filter sub-circuit, an amplification sub-circuit, a signal conversion sub-circuit, and an information processing sub-circuit that are electrically connected in sequence. The filter sub-circuit is used to filter the partial discharge information collected by the acquisition unit. The amplification sub-circuit is used to amplify the partial discharge information. The partial discharge information is an analog signal. The signal conversion sub-circuit is used to convert the analog signal into a digital signal. The information processing sub-circuit is used to process and analyze the digital signal.

[0010] Furthermore, the integrated partial discharge temperature detection device for high-voltage cables further includes a battery assembly. The battery assembly is disposed in the receiving cavity and is used to supply power to the acquisition unit, the processing unit, and the display screen.

[0011] Furthermore, the battery assembly has a first charging port, and the housing assembly has a second charging port. The first charging port and the second charging port are disposed opposite to each other to facilitate charging of the battery assembly.

[0012] Furthermore, the integrated partial discharge temperature detection device for high-voltage cables further includes a first handle and a second handle. The first handle and the second handle are spaced apart on opposite sides of the housing to facilitate hand-holding.

[0013] Furthermore, the integrated partial discharge temperature detection device for high-voltage cables further includes a telescopic mechanism. The telescopic mechanism is disposed on the housing, and at least a part of the telescopic mechanism can extend out of the housing to support the housing.

[0014] In this application, the acquisition unit and the processing unit are arranged in the accommodation cavity. The acquisition unit and the processing unit cooperate to capture the partial discharge information of the cable, so as to remind the staff to repair or replace the cable with partial discharge, which is beneficial to improving the efficiency of cable repair and can avoid causing high-voltage safety accidents. In addition, the housing assembly includes an outer shell and a metal mesh. The metal mesh is attached to the inner circumference of the outer shell. The metal mesh and the outer shell form a continuous electromagnetic shielding system, which can effectively block the electromagnetic interference from outside the high-voltage cable partial discharge temperature integrated detection device and from different directions to the acquisition unit and the processing unit. Therefore, it is beneficial for the acquisition unit and the processing unit to more accurately collect and process the partial discharge information of the cable, and improve the accuracy of the high-voltage cable partial discharge temperature integrated detection device for detecting the partial discharge information of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the implementation will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 Structural schematic diagram of the high-voltage cable partial discharge temperature integrated detection device according to an embodiment of the present application;

[0017] Figure 2 Exploded structural schematic diagram of the high-voltage cable partial discharge temperature integrated detection device according to an embodiment of the present application;

[0018] Figure 3 Circuit block diagram of the high-voltage cable partial discharge temperature integrated detection device according to an embodiment of the present application;

[0019] Figure 4 Structural schematic diagram of the outer shell according to an embodiment of the present application;

[0020] Figure 5 Circuit block diagram of the processing unit according to an embodiment of the present application;

[0021] Figure 6 Structural schematic diagram of the high-voltage cable partial discharge temperature integrated detection device according to another embodiment of the present application.

[0022] Description of the reference numerals:

[0023] 100 - High - voltage cable partial discharge and temperature integrated detection device, 110 - Housing assembly, 111 - Outer shell, 112 - Metal mesh, 113 - Receiving cavity, 114 - Through - hole, 115 - Conductive cotton, 116 - Second charging port, 120 - Acquisition unit, 121 - Acquisition port, 122 - Acquisition sub - unit, 130 - Processing unit, 131 - Filtering sub - circuit, 132 - Amplifying sub - circuit, 133 - Signal conversion sub - circuit, 134 - Information processing sub - circuit, 140 - Isolation frame, 141 - Receiving sub - cavity, 150 - Infrared detector, 160 - Display screen, 170 - Battery assembly, 171 - First charging port, 180 - First handle, 190 - Second handle, 200 - Telescopic mechanism. Detailed implementation manners

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0025] The terms "first", "second", etc. in the specification and claims of the present application and the above - mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non - exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0026] Referring to "embodiment" or "embodiment manner" herein means that a specific feature, structure or characteristic described in connection with the embodiment or embodiment manner can be included in at least one embodiment of the present application. The appearance of this phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0027] A cable is a device for transmitting electrical energy or signals and plays an extremely important bridging role in high-voltage lines. When it comes to common cable joints, usually the wires inside two cables to be joined are joined one by one and then insulated. At the middle joint of the cable, the electric field intensity is high enough. When one of the wires has a loose connection and gets hot, it may cause the cable to be punctured, that is, local discharge problems occur, leading to safety accidents in high-voltage lines. Commonly, a high-voltage cable partial discharge temperature integrated detection device is used to capture the partial discharge information of the cable. However, during the process of detecting the partial discharge of the cable, the high-voltage cable partial discharge temperature integrated detection device is easily affected by electromagnetic interference, which affects the detection results.

[0028] Optionally, when a cable has a partial discharge, the following changes will occur: First, there will be a transfer of charges during the partial discharge process; Second, electromagnetic radiation will be generated during the partial discharge process because electromagnetic waves are generated by the rapid movement of charges during the discharge process; Third, ultrasonic waves will be generated during the partial discharge process; Fourth, optical radiation will be generated during the partial discharge process; Fifth, heat will be generated during the partial discharge process, causing a temperature change.

[0029] Please refer to Figures 1 to 3 , this application provides a high-voltage cable partial discharge temperature integrated detection device 100. The high-voltage cable partial discharge temperature integrated detection device 100 is used to detect the partial discharge information of the cable. The high-voltage cable partial discharge temperature integrated detection device 100 includes: a housing assembly 110, a collection unit 120, and a processing unit 130. The housing assembly 110 includes a housing 111 and a metal mesh 112. The housing 111 encloses a receiving cavity 113. The metal mesh 112 is disposed along the inner circumference of the housing 111. The collection unit 120 is disposed in the receiving cavity 113. The collection unit 120 is used to collect the partial discharge information of the external cable; The processing unit 130 is electrically connected to the collection unit 120 and is used to process the partial discharge information collected by the collection unit 120.

[0030] It can be understood that since the metal mesh 112 is disposed along the inner circumference of the housing 111, the metal mesh 112 is disposed in the receiving cavity 113.

[0031] It can be understood that in the high-voltage cable partial discharge temperature integrated detection device 100, the collection unit 120 and the processing unit 130 are electrically connected.

[0032] Optionally, the partial discharge information includes but is not limited to temperature information, ultrasonic wave information, charge transfer information, optical radiation information, electromagnetic wave information, etc. when the cable has a partial discharge.

[0033] In this embodiment, the acquisition unit 120 and the processing unit 130 are disposed in the accommodation cavity 113. The acquisition unit 120 and the processing unit 130 cooperate to capture the partial discharge information of the cable, so as to remind the staff to repair or replace the cable with partial discharge, which is beneficial to improving the efficiency of cable repair and can avoid causing high-voltage safety accidents. In addition, the housing assembly 110 includes an outer shell 111 and a metal mesh 112. The metal mesh 112 is disposed along the inner circumference of the outer shell 111. The metal mesh 112 and the outer shell 111 form a continuous electromagnetic shielding system, which can effectively block the electromagnetic interference from different directions outside the high-voltage cable partial discharge temperature integrated detection device 100 to the acquisition unit 120 and the processing unit 130, so that the acquisition unit 120 and the processing unit 130 can more accurately collect and process the partial discharge information of the cable, and improve the accuracy of the high-voltage cable partial discharge temperature integrated detection device 100 for detecting the partial discharge information of the cable.

[0034] Optionally, the processing unit 130 may be, but is not limited to, a circuit board.

[0035] Please refer to Figure 2 and Figure 4 , in some embodiments, the acquisition unit 120 has at least one acquisition port 121, and the acquisition port 121 is used for electrically connecting with an external cable; the housing assembly 110 has at least one through hole 114, and the through hole 114 sequentially penetrates through the outer shell 111 and the metal mesh 112, and the acquisition port 121 extends to the outside of the accommodation cavity 113 through the through hole 114; the housing assembly 110 further includes conductive cotton 115, and when the acquisition port 121 penetrates through the through hole 114, the conductive cotton 115 seals the gap of the through hole 114.

[0036] In the terms of this application, "at least one" means one or more, and can be one, two, three, four, five or six, etc.

[0037] In this embodiment, the acquisition port 121 is used to realize the electrical connection between the acquisition unit 120 and the external cable to realize the detection of the external cable. When the acquisition port 121 penetrates through the through hole 114, the conductive cotton 115 seals the gap of the through hole 114, which is beneficial to further blocking the external electromagnetic from entering the accommodation cavity 113 and interfering with the acquisition unit 120 and the processing unit 130, so that the acquisition unit 120 and the processing unit 130 can more accurately collect and process the partial discharge information of the cable, and improve the accuracy of the high-voltage cable partial discharge temperature integrated detection device 100 for detecting the partial discharge information of the cable.

[0038] In some embodiments, the high-voltage cable partial discharge temperature integrated detection device 100 further includes an isolation rack 140, which is fixedly arranged in the accommodation cavity 113. The isolation rack 140 has a plurality of accommodation sub-cavities 141, and the plurality of accommodation sub-cavities 141 are arranged in sequence along a preset direction (such as Figure 2 the X direction shown in the figure); the acquisition unit 120 includes a plurality of acquisition sub-units 122, and each acquisition sub-unit 122 is respectively arranged in one of the accommodation sub-cavities 141.

[0039] In this embodiment, the isolation rack 140 has a plurality of accommodation sub-cavities 141 and the plurality of accommodation sub-cavities 141 are arranged in sequence along a preset direction. When each acquisition sub-unit 122 is respectively arranged in one of the accommodation sub-cavities 141, on the one hand, it can avoid interference between the plurality of acquisition sub-units 122, thereby improving the accuracy of the plurality of acquisition sub-units 122 in acquiring the partial discharge information of the cable. On the other hand, the isolation rack 140 is fixed in the accommodation cavity 113, enhancing the regularity of the arrangement of the acquisition sub-units 122 in the accommodation cavity 113, which is beneficial to improving the space utilization rate of the accommodation cavity 113 of the high-voltage cable partial discharge temperature integrated detection device 100 and is beneficial to realizing the miniaturized design of the volume of the high-voltage cable partial discharge temperature integrated detection device 100.

[0040] It can be understood that the number of the acquisition ports 121 is multiple, and each acquisition sub-unit 122 is electrically connected to an external cable through one of the acquisition ports 121. In other words, the plurality of acquisition sub-units 122 are independent of each other.

[0041] In some embodiments, the acquisition sub-unit 122 is selected from one of a temperature acquisition sub-unit, an ultrasonic acquisition sub-unit, a high-frequency current acquisition sub-unit, an optical radiation acquisition sub-unit, and an electromagnetic wave acquisition sub-unit.

[0042] It can be understood that different acquisition sub-units 122 are selected from different acquisition sub-units among a temperature acquisition sub-unit, an ultrasonic acquisition sub-unit, a high-frequency current acquisition sub-unit, an optical radiation acquisition sub-unit, and an electromagnetic wave acquisition sub-unit.

[0043] When partial discharge occurs in the external cable, the temperature acquisition subunit can detect the increase in the temperature of the external cable, thereby acquiring the temperature information of the external cable. During the partial discharge process of the external cable, heat is rapidly generated and gas rapidly expands, thereby generating sound waves. The ultrasonic subunit can be used to acquire the ultrasonic information of the external cable. During the partial discharge process of the external cable, charge transfer occurs. The high-frequency current acquisition subunit can detect the high-frequency current pulses generated during the partial discharge process of the cable, and the charge transfer information of the external cable can be acquired by analyzing these pulse signals. During the partial discharge process of the external cable, light radiation is generated. The light radiation acquisition subunit can be used to acquire the light radiation information of the external cable. Furthermore, during the partial discharge process of the external cable, electromagnetic radiation is generated due to the rapid movement of charges. The electromagnetic wave acquisition subunit can acquire the electromagnetic wave information of the external cable. When the acquisition subunit 122 is selected from one of the temperature acquisition subunit, ultrasonic acquisition subunit, high-frequency current acquisition subunit, light radiation acquisition subunit, and electromagnetic wave acquisition subunit, the partial discharge signal of the external cable can be acquired and processed by the processing unit 130, so as to remind the staff to repair or replace the cable with partial discharge, which is beneficial to improving the efficiency of cable repair and avoiding high-voltage safety accidents.

[0044] In some embodiments, the high-voltage cable partial discharge temperature integrated detection device 100 further includes an infrared detector 150 and a display screen 160. The infrared detector 150 and the display screen 160 are both electrically connected to the processing unit 130. The infrared detector 150 is disposed on the surface of the housing 111 facing away from the receiving cavity 113. The display screen 160 is embedded in the housing 111 and partially exposed. The infrared detector 150 receives the infrared radiation information of the external cable and converts it into an electrical signal. The processing unit 130 processes the electrical signal output by the infrared detector 150 to form a thermal image. The display screen 160 is used to display the thermal image.

[0045] It can be understood that the infrared detector 150 is disposed on the surface of the housing 111 facing away from the receiving cavity 113, which can be that the infrared detector 150 is disposed outside the receiving cavity 113.

[0046] Optionally, the processing of the electrical signal output by the infrared detector 150 by the processing unit 130 includes amplifying, filtering, and digitizing the electrical signal output by the infrared detector 150 for subsequent generation of a thermal image.

[0047] In this embodiment, when partial discharge occurs in the external cable detected by the high-voltage cable partial discharge temperature integrated detection device 100, the cable generates heat and emits infrared radiation information. The infrared detector 150 can receive the infrared radiation information of the external cable and convert it into an electrical signal. The processing unit 130 can process the electrical signal output by the infrared detector 150 to form a thermal image, and display the thermal image through the display screen 160. The thermal image can display the heat generation information of the external cable, facilitating the staff to obtain the heat generation information of each area of the cable, thereby facilitating the staff to screen the area where partial discharge occurs, which is beneficial to improving the efficiency of the staff for maintenance or replacement. The infrared detector 150 and the processing unit 130 cooperate to further detect the temperature information of the external cable when partial discharge occurs, and the thermal image displayed through the display screen 160 visualizes the heat generation area of the external cable, improving the detection performance of the high-voltage cable partial discharge temperature integrated detection device 100.

[0048] Optionally, the display screen 160 is further configured to display the partial discharge information collected by the collection unit 120. Among them, the partial discharge information displayed on the display screen 160 is the information processed by the processing unit 130, so as to facilitate the staff to obtain the partial discharge information of the external cable detected by the high-voltage cable partial discharge temperature integrated detection device 100.

[0049] Please refer to Figure 5 , in some embodiments, the processing unit 130 further includes a filtering sub-circuit 131, an amplifying sub-circuit 132, a signal conversion sub-circuit 133 and an information processing sub-circuit 134 that are electrically connected in sequence. The filtering sub-circuit 131 is configured to filter the partial discharge information collected by the collection unit 120. The amplifying sub-circuit 132 is configured to amplify the partial discharge information. The partial discharge information is an analog signal. The signal conversion sub-circuit 133 is configured to convert the analog signal into a digital signal. The information processing sub-circuit 134 is configured to process and analyze the digital signal.

[0050] In this embodiment, the processing unit 130 processes the partial discharge information collected by the collection unit 120. Specifically, the filtering sub-circuit 131 filters the partial discharge information collected by the collection unit 120 to remove or reduce the noise and interference in the signal, thereby improving the accuracy of the high-voltage cable partial discharge temperature integrated detection device 100 for detecting the partial discharge information of the cable. The amplification sub-circuit 132 is used to amplify the partial discharge information filtered by the filtering sub-circuit 131, which is beneficial to amplifying weak partial discharge signals, making the partial discharge signals of the cable easier to be detected or recognized. Further, the signal conversion sub-circuit 133 converts the partial discharge information amplified by the amplification sub-circuit 132 into a digital signal, so as to facilitate the signal processing sub-unit to process and analyze, and finally obtain the specific location and specific cause of the partial discharge of the cable, so that the staff can repair or replace the cable with partial discharge to avoid the occurrence of high-voltage safety accidents.

[0051] In some embodiments, the high-voltage cable partial discharge temperature integrated detection device 100 further includes a battery assembly 170. The battery assembly 170 is disposed in the receiving cavity 113, and the battery assembly 170 is used to supply power to the collection unit 120, the processing unit 130, and the display screen 160. In other words, the battery assembly 170 is electrically connected to the collection unit 120, the processing unit 130, and the display screen 160 respectively.

[0052] In this embodiment, the battery assembly 170 is used to provide a stable power supply to the collection unit 120, the processing unit 130, and the display screen 160, so that the collection unit 120, the processing unit 130, and the display screen 160 can work normally. The collection unit 120 can collect the partial discharge signals of the external cable, the processing unit 130 can process the partial discharge signals collected by the collection unit 120, and the display screen 160 can display the partial discharge signals obtained by the cooperation of the collection unit 120 and the processing unit 130, so as to facilitate the staff to know the partial discharge information of the external cable detected by the high-voltage cable partial discharge temperature integrated detection device 100. In addition, the high-voltage cable partial discharge temperature integrated detection device 100 can be used without an external power supply connected, which improves the performance of the high-voltage cable partial discharge temperature integrated detection device 100.

[0053] Optionally, the battery assembly 170 is further used to supply power to the infrared detector 150 to enable the infrared detector 150 to work normally.

[0054] In some embodiments, the battery assembly 170 has a first charging port 171, and the housing 111 assembly has a second charging port 116. The first charging port 171 and the second charging port 116 are arranged opposite to each other to facilitate charging of the battery assembly 170.

[0055] In this embodiment, the first charging port 171 and the second charging port 116 are arranged opposite to each other to facilitate charging of the battery assembly 170 by an external power source. When the battery assembly 170 runs out of power, the external power source can charge the battery assembly 170 through the first charging port 171 and the second charging port 116 to extend the service life of the integrated partial discharge and temperature detection device 100 for high-voltage cables.

[0056] Please refer to Figure 4 and Figure 6 , in some embodiments, the integrated partial discharge and temperature detection device 100 for high-voltage cables further includes a first handle 180 and a second handle 190. The first handle 180 and the second handle 190 are spaced apart on opposite sides of the housing 111 to facilitate hand-holding.

[0057] In this embodiment, the first handle 180 and the second handle 190 are spaced apart on opposite sides of the housing 111. When the integrated partial discharge and temperature detection device 100 for high-voltage cables is used to detect a cable, the first handle 180 and the second handle 190 facilitate a staff member to hold the device to detect whether partial discharge occurs in an external cable, improving the performance of the integrated partial discharge and temperature detection device 100 for high-voltage cables.

[0058] In some embodiments, the integrated partial discharge and temperature detection device 100 for high-voltage cables further includes a telescopic mechanism 200. The telescopic mechanism 200 is provided on the housing 111, and at least a part of the telescopic mechanism 200 can extend out of the housing 111 to support the housing 111.

[0059] Optionally, the telescopic mechanism 200 can be, but is not limited to, a telescopic support leg, a universal wheel, etc.

[0060] Optionally, there are multiple telescopic mechanisms 200, and the multiple telescopic mechanisms 200 are spaced apart on the housing 111.

[0061] References to "embodiments" or "implementation manners" in this application mean that specific features, structures, or characteristics described in connection with the embodiments may be included in at least one embodiment of this application. The phrase appearing at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described in this application may be combined with other embodiments. In addition, it should also be understood that the features, structures, or characteristics described in each embodiment of this application can be arbitrarily combined with each other without contradiction to form another embodiment that does not depart from the spirit and scope of the technical solution of this application.

[0062] Finally, it should be noted that the above implementation manners are only used to illustrate the technical solutions of this application and not to limit them. Although the technical solutions of this application have been described in detail with reference to the above preferred implementation manners, those of ordinary skill in the art should understand that modifications or equivalent replacements can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A high-voltage cable partial discharge and temperature integrated detection device, which is used to detect the partial discharge information of the cable, and is characterized in that: The high-voltage cable partial discharge temperature integrated detection device comprises: A housing assembly, the housing assembly comprising an outer shell and a metal mesh, the outer shell enclosing a receiving cavity, the metal mesh being arranged in contact with the inner circumference of the outer shell; a collection unit, the collection unit being disposed in the receiving cavity and being used to collect partial discharge information of an external cable; and A processing unit, the processing unit is electrically connected to the acquisition unit and is used to process the partial discharge information collected by the acquisition unit; the high-voltage cable partial discharge temperature integrated detection device also includes an infrared detector and a display screen, the infrared detector and the display screen are both electrically connected to the processing unit, the infrared detector is arranged on the surface of the shell away from the accommodating cavity, the display screen is embedded in the shell and partially exposed, the infrared detector receives infrared radiation information from the external cable and converts it into an electrical signal, the processing unit processes the electrical signal output by the infrared detector to form a thermal image, and the display screen is used to display the thermal image.

2. The integrated partial discharge and temperature detection device for high-voltage cables according to claim 1, wherein, The collection unit has at least one collection port, which is used to electrically connect to an external cable; the shell assembly has at least one through-hole, which passes through the shell and the metal mesh in sequence, and the collection port extends to the outside of the receiving cavity through the through-hole; the shell assembly also includes conductive cotton, which seals the gap in the through-hole when the collection port is passed through the through-hole.

3. The integrated partial discharge and temperature detection device for high-voltage cables according to claim 1, wherein The high-voltage cable partial discharge temperature integrated detection device also includes an isolation frame, which is fixedly arranged in the receiving cavity. The isolation frame has a plurality of receiving sub-cavities, and the plurality of receiving sub-cavities are arranged in sequence along a preset direction; the collection unit includes a plurality of collection sub-units, each of which is respectively arranged in one of the receiving sub-cavities.

4. The integrated partial discharge and temperature detection device for high-voltage cables according to claim 3, characterized in that The acquisition subunit is selected from one of a temperature acquisition subunit, an ultrasonic acquisition subunit, a high-frequency current acquisition subunit, a light radiation acquisition subunit and an electromagnetic wave acquisition subunit.

5. The integrated partial discharge and temperature detection device for high-voltage cables according to claim 1, wherein, The processing unit further includes a filtering subcircuit, an amplifying subcircuit, a signal conversion subcircuit, and an information processing subcircuit electrically connected in sequence. The filtering subcircuit is used to filter the partial discharge information collected by the collection unit. The amplifying subcircuit is used to amplify the partial discharge information, which is an analog signal. The signal conversion subcircuit is used to convert the analog signal into a digital signal. The information processing subcircuit is used to process and analyze the digital signal.

6. The integrated partial discharge and temperature detection device for high-voltage cables according to claim 1, characterized in that, The high-voltage cable partial discharge temperature integrated detection device further includes a battery assembly, which is disposed in the receiving cavity and is used to supply power to the acquisition unit, the processing unit, and the display screen.

7. The integrated partial discharge and temperature detection device for high-voltage cables according to claim 6, wherein, The battery assembly has a first charging port, and the housing assembly has a second charging port. The first charging port and the second charging port are arranged opposite to each other to facilitate charging of the battery assembly.

8. The integrated partial discharge and temperature detection device for high-voltage cables according to any one of claims 1 to 7, characterized in that, The high-voltage cable partial discharge temperature integrated detection device further comprises a first handle and a second handle, wherein the first handle and the second handle are spaced apart and arranged on opposite sides of the housing for easy handholding.

9. The integrated partial discharge and temperature detection device for high-voltage cables according to any one of claims 1 to 7, characterized in that, The high-voltage cable partial discharge temperature integrated detection device further includes a telescopic mechanism, the telescopic mechanism is arranged on the outer shell, and at least part of the telescopic mechanism can extend out of the outer shell to support the outer shell.

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