Solid-sealed six-wire single-core intelligent direct grounding box

Abstract

A solid-sealed six-wire single-core intelligent direct grounding box comprises a signal acquisition box which comprises an acquisition box body, a grounding assembly and a waterproof connector which are arranged on the acquisition box body, and a middle connection assembly, six groups of first plugging connection units and an operation state acquisition unit which are arranged in the acquisition box body; the middle connecting assembly is connected with the connecting assembly; the six groups of first plugging connection units are connected with the middle connection assembly; the acquisition box body is filled with an insulating casting body; each grounding cable is connected with a second plugging connection unit, and the second plugging connection units are connected with the first plugging connection units in a matched manner. The running state acquisition unit is at least used for acquiring grounding ring current on a grounding cable; and the signal processing box is used for monitoring operation data of the to-be-grounded cable and the main cable. According to the utility model, six single-core grounding cables can be directly grounded at the same time, and the requirement that two ends of an insulating joint are directly grounded at the same time by one grounding box is met.

Description

Technical Field

[0001] The utility model relates to the technical field of power cables, in particular to a sealed six-wire single-core intelligent direct grounding box. Background Art

[0002] In the power system, high-voltage cables are widely used for power transmission and distribution, and their safe operation is crucial to ensure the stability of power supply. When the cable is struck by lightning or suffers internal overvoltage or short circuit, the cable metal sheath will have a high impulse overvoltage and power frequency induced overvoltage, causing the insulation performance of the metal sheath to drop rapidly, resulting in multi-point grounding faults in the cable sheath, seriously affecting the normal operation of the power cable and even significantly shortening the service life of the cable. Therefore, a grounding box is required in high-voltage transmission lines.

[0003] Traditional grounding boxes are generally three-phase three-wire. However, in actual engineering applications, at least two grounding boxes are required at one insulating joint to directly ground both ends of the insulating joint to achieve safe and reliable grounding of the cable. However, due to environmental factors or complex cable laying environment and restrictions on installation and construction work, it is difficult to install two direct grounding boxes at the same location using traditional grounding boxes, which not only increases the workload of operators, but also increases the installation cost. At the same time, it also increases the maintenance cost and workload during cable operation. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a sealed six-wire single-core intelligent direct grounding box, which can realize direct grounding of six single-core grounding cables at the same time, meeting the requirement of directly grounding both ends of the insulating joint with one grounding box at the same time.

[0005] According to the first embodiment of the utility model, the sealed six-wire single-core intelligent direct grounding box is used for grounding single-core cables. The sealed six-wire single-core intelligent direct grounding box includes a signal acquisition box and a signal processing box;

[0006] A signal collection box, comprising a collection box, a grounding component and a waterproof connector arranged on the collection box, an intermediate connection component arranged in the collection box, six groups of first plug-in connection units and an operation status collection unit; the intermediate connection component is connected to the connection component; the grounding component is used for grounding; the six groups of the first plug-in connection units are all connected to the intermediate connection component; the collection box is filled with an insulating casting; each grounding cable is connected to a second plug-in connection unit, and the second plug-in connection unit is connected to the first plug-in connection unit; the operation status collection unit is at least used to collect the grounding loop on the grounding cable;

[0007] The signal processing box is connected to the operation status acquisition unit in the signal acquisition box through the waterproof connector, and is used to monitor the operation data of the grounding cable and the main cable.

[0008] The sealed six-wire single-core intelligent direct grounding box according to the embodiment of the utility model has at least the following gain effects:

[0009] In the embodiment of the utility model, the single-core grounding cable is grounded through the signal acquisition box. After the grounding cable is connected to the second plug-in connection unit, the intermediate connection component and the grounding component are connected through the first plug-in connection unit to achieve direct grounding. Since six first plug-in connection units are arranged in the signal acquisition box, six single-core grounding cables can be connected at the same time to achieve direct grounding of the six single-core grounding cables at the same time, and one grounding box can directly ground both ends of the insulating joint at the same time, without requiring two grounding boxes to be equipped at one insulating joint. While reducing the number of grounding boxes to be installed, the installation operation is simplified, and the purpose of reducing the space required for construction and improving the environmental compatibility of the equipment is achieved, saving equipment costs, installation costs and maintenance costs during cable operation. At the same time, the workload of operators for installation and maintenance is reduced. The acquisition box is filled with an insulating cast body, which can meet the protection level of IP68, achieve a higher insulation strength and impact resistance level than air, and ensure the sealing and insulation of the acquisition box. The signal processing box can monitor the operation status of the cable in real time, realize monitoring automation, and can timely discover problems in cable operation without relying on manual inspections, so as to protect the normal operation of the power line. At the same time, the signal acquisition box and the signal processing box are separated, which has great installation flexibility and reduces the space required for construction or installation.

[0010] According to some embodiments of the utility model, six grounding cable inlet holes are opened on the front cover plate of the collection box, and the six grounding cable inlet holes are arranged in three rows, each row includes two grounding cable inlet holes, and the six grounding cable inlet holes are used to connect the grounding cables.

[0011] According to some embodiments of the present utility model, each of the first plug connection units includes:

[0012] An aluminum sleeve is arranged in the collection box and located at the grounding cable inlet hole;

[0013] A conductive sleeve is arranged in the collection box and corresponds to the aluminum sleeve, and is used to connect the second plug-in connection unit and the intermediate connection assembly.

[0014] According to some embodiments of the utility model, the second plug-in connection unit includes an incoming wire sleeve, a gasket, a sealing sleeve, a thrust ring, a plug-in head, a retaining spring and a conductive sheet. The incoming wire sleeve, the gasket, the sealing sleeve and the thrust ring are sequentially inserted into one of the grounding cables, the plug-in head is crimped onto the core of the grounding cable, and the retaining spring and the conductive sheet are fixedly arranged on the plug-in head; when the second plug-in connection unit is matingly connected with the first plug-in connection unit, the incoming wire sleeve is matingly connected with the aluminum sleeve, and the plug-in head is matingly connected with the conductive sleeve.

[0015] According to some embodiments of the present utility model, the intermediate connection assembly includes:

[0016] A grounding plate connected to the grounding component;

[0017] Three connecting plates are all arranged on the grounding plate;

[0018] There are six connection posts, each of which is connected to a corresponding grounding cable inlet hole, and the upper and lower connection posts in each column are connected to a connection plate.

[0019] According to some embodiments of the present utility model, the signal acquisition box further comprises three valve plate pads arranged between the grounding plate and the rear cover plate of the acquisition box body and corresponding to the three connecting plates.

[0020] According to some embodiments of the utility model, the operating status acquisition unit includes six current transformers, each of which is mounted outside the connecting column and is used to collect the grounding loop current on a corresponding grounding cable. The collected grounding loop current is transmitted to the signal processing box through the waterproof connector.

[0021] According to some embodiments of the present utility model, the grounding component includes a grounding post, one end of which is connected to the intermediate connecting component, and the other end of which is arranged on the right side plate of the collection box.

[0022] According to some embodiments of the utility model, the signal processing box includes a processing box body and a power supply module, an acquisition and processing module and a signal transmission module arranged inside the processing box body; the power supply module is used to supply power to the acquisition and processing module and the signal transmission module; the acquisition and processing module is used to receive and process the ground loop current collected by the operating status acquisition unit; the signal transmission module is used to transmit the data processed by the acquisition and processing module.

[0023] According to some embodiments of the present invention, the signal processing box further comprises a plurality of current loops, and the current loops are used to be externally mounted on a plurality of the main cables to collect the operating current on the main cables and transmit the current to the collection and processing module.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 This is a structural schematic diagram of a sealed six-wire single-core intelligent direct grounding box according to an embodiment of the utility model.

[0027] Figure 2 It is a side sectional view of the signal acquisition box in the embodiment of the utility model.

[0028] Figure 3 It is a top sectional view of the signal acquisition box in the embodiment of the utility model.

[0029] Figure 4 This is a front view of the signal acquisition box in the embodiment of the utility model.

[0030] Figure 5 It is a structural schematic diagram of the second plug-in connection unit in an embodiment of the utility model.

[0031] Figure 6 It is a structural schematic diagram of the signal processing box in the embodiment of the utility model.

[0032] Reference numerals:

[0033] Signal acquisition box 100, front cover 111, right side plate 112, top plate 113, grounding cable inlet hole 114, waterproof connector 121, shield 122, grounding assembly 130, grounding column 131, aluminum sleeve 141, conductive sleeve 142, inlet sleeve 151, gasket 152, sealing sleeve 153, thrust ring 154, plug head 155, retaining spring 156, conductive sheet 157, grounding plate 161, connecting plate 162, connecting column 163, valve sheet gasket 170, current transformer 180, insulating casting body 190,

[0034] Signal processing box 200, processing box body 210, power supply module 220, collection and processing module 230, signal transmission module 240, current loop 250,

[0035] Ground cable 300. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the description of the present utility model, if there is a description of first, second, etc., it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In the description of the present utility model, it should be noted that, unless otherwise clearly stated, terms such as limitation, setting, installation, connection, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model based on the specific content of the technical solution.

[0040] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described below are only part of the embodiments of the present utility model, not all of the embodiments.

[0041] Refer to the following Figures 1 to 6 The sealed six-wire single-core intelligent direct grounding box according to the embodiment of the present application is described.

[0042] The utility model provides a sealed six-wire single-core intelligent direct grounding box, which is used for grounding single-core cables. The sealed six-wire single-core intelligent direct grounding box includes a signal acquisition box 100 and a signal processing box 200;

[0043] The signal collection box 100 comprises a collection box, a grounding component 130 and a waterproof connector 121 arranged on the collection box, an intermediate connection component arranged in the collection box, six groups of first plug-in connection units and an operation status collection unit; the intermediate connection component is connected to the connection component; the grounding component 130 is used for grounding; the six groups of first plug-in connection units are all connected to the intermediate connection component; the collection box is filled with an insulating casting 190; each grounding cable 300 is connected to a second plug-in connection unit, and the second plug-in connection unit is connected to the first plug-in connection unit; the operation status collection unit is at least used for collecting the grounding loop on the grounding cable 300;

[0044] The signal processing box 200 is connected to the operation status acquisition unit in the signal acquisition box 100 through the waterproof connector 121, and is used to monitor the operation data of the grounding cable 300 and the main cable.

[0045] In the embodiment of the utility model, the single-core grounding cable 300 is grounded through the signal acquisition box 100. After the grounding cable 300 is connected to the second plug-in connection unit, the intermediate connection component and the grounding component 130 are connected through the first plug-in connection unit to achieve direct grounding. Since six first plug-in connection units are arranged in the signal acquisition box 100, six single-core grounding cables 300 can be connected at the same time to achieve direct grounding of the six single-core grounding cables 300 at the same time, so that one grounding box can directly ground both ends of the insulating joint at the same time without requiring two grounding boxes at one insulating joint. While reducing the number of grounding boxes to be installed, the installation operation is simplified, thereby achieving the purpose of reducing the space required for construction and improving the environmental compatibility of the equipment, saving equipment costs, installation costs and maintenance costs during cable operation, and at the same time, reducing the workload of operators for installation and maintenance.

[0046] In addition, the collection box is filled with an insulating cast body 190, which can meet the IP68 protection level, achieve higher insulation strength and impact resistance than air, and ensure the sealing and insulation of the collection box.

[0047] The signal processing box 200 can monitor the operation status of the cable in real time, realize automatic monitoring, and can timely discover problems in the operation of the cable without relying on manual inspection, thereby protecting the normal operation of the power line. At the same time, the signal collection box 100 and the signal processing box 200 are separated, which has great installation flexibility and reduces the space required for construction or installation.

[0048] refer to Figure 4 In some embodiments, six grounding cable entry holes 114 are provided on the front cover plate 111 of the collection box, and the six grounding cable entry holes 114 are arranged in three rows, each row includes two grounding cable entry holes 114, and the six grounding cable entry holes 114 are used to connect the grounding cables 300. The six grounding cable entry holes 114 provided on the front cover plate 111 of the collection box can connect six grounding cables 300 at the same time, and the six grounding cable entry holes 114 are arranged in two rows and three columns, one row can connect the three-phase grounding cable 300, and two rows can connect the three-phase grounding cables 300 at both ends of the insulating joint at the same time.

[0049] like Figure 2 and Figure 3 As shown, in some embodiments, each first plug connection unit includes an aluminum sleeve 141 and a conductive sleeve 142;

[0050] An aluminum sleeve 141 is disposed in the collection box and located at the grounding cable inlet hole 114;

[0051] The conductive sleeve 142 is disposed in the collection box and corresponds to the aluminum sleeve 141, and is used to connect the second plug-in connection unit and the intermediate connection assembly.

[0052] The signal acquisition box 100 includes six aluminum sleeves 141 and six conductive sleeves 142, which are all encapsulated and fixed by an insulating casting body 190. The aluminum sleeves 141 are arranged at the grounding cable entry hole 114 on the front cover plate 111 of the acquisition box, and each aluminum sleeve 141 is correspondingly arranged at a grounding cable entry hole 114. The conductive sleeve 142 is arranged at a position close to the tail of the grounding cable 300 when the grounding cable 300 is connected, and each conductive sleeve 142 is arranged corresponding to an aluminum sleeve 141.

[0053] In some embodiments, each first plug-in connection unit is arranged inside the signal acquisition box 100, and each second plug-in connection unit is sleeved on the end of a grounding cable 300. The first plug-in connection unit serves as a plug socket, and the second plug-in connection unit serves as a plug. Each second plug-in connection unit is used in conjunction with the first plug-in connection unit for plug-in connection, which simplifies the equipment installation operation process. During installation, the grounding cable 300 only needs to be sleeved on the second plug-in connection unit, and then inserted into the first plug-in connection unit in the grounding box and fixed to complete the operation. It is efficient, convenient and fast.

[0054] like Figure 5 As shown, in some embodiments, the second plug-in connection unit includes an incoming wire sleeve 151, a gasket 152, a sealing sleeve 153, a thrust ring 154, a plug head 155, a retaining spring 156 and a conductive sheet 157. The incoming wire sleeve 151, the gasket 152, the sealing sleeve 153 and the thrust ring 154 are sequentially inserted into a grounding cable 300, the plug head 155 is crimped onto the core of the grounding cable 300, and the retaining spring 156 and the conductive sheet 157 are fixedly arranged on the plug head 155; when the second plug-in connection unit is mated with the first plug-in connection unit, the incoming wire sleeve 151 is mated with the aluminum sleeve 141, and the plug head 155 is mated with the conductive sleeve 142.

[0055] In some embodiments, the grounding cable 300 to be connected to the grounding box needs to be pre-stripped. When stripping the grounding cable 300, the cable core needs to be exposed by 32 mm. This length can be adjusted according to the size of the plug head 155. The inner insulation stripping size is 110 mm. If the grounding cable 300 used has an insulating shield or a metal armor layer, the inner insulation stripping size is increased from 110 mm to 185 mm to ensure the distance between the break of the insulating shield or the metal armor layer and the box inlet port, and the insulating shield or the metal armor is reliably grounded and the insulation is restored according to the grounding requirements.

[0056] In some embodiments, after the grounding cable 300 to be connected to the grounding box is stripped, the inlet sleeve 151, the gasket 152, the sealing sleeve 153, and the thrust ring 154 are sequentially inserted into the grounding cable 300, and finally the plug head 155 is crimped onto the core of the grounding cable 300 to fix the grounding cable 300. At the same time, the retaining spring 156 and the conductive sheet 157 are fixed on the plug head 155, completing the operation steps of putting the second plug connection unit on the grounding cable 300.

[0057] like Figure 2 and Figure 3 As shown, in some embodiments, after the second plug-in connection unit is sleeved on the grounding cable 300, the grounding cable 300 can be connected to the first plug-in connection unit through the second plug-in connection unit to be connected to the signal collection box 100 for direct grounding. Among them, the aluminum sleeve 141 in the first plug-in connection unit and the incoming line sleeve 151 in the second plug-in connection unit are connected by threaded matching, and the conductive sleeve 142 in the first plug-in connection unit is reliably in contact with the plug head 155 in the second plug-in connection unit, so that the wire core of the grounding cable 300 is tightly connected to the intermediate connection component in the signal collection box 100, thereby achieving the effect of reliable grounding of the grounding cable 300.

[0058] like Figure 2 and Figure 3 As shown, in some embodiments, the intermediate connection assembly includes a ground plate 161, three connection plates 162, and six connection columns 163;

[0059] A grounding plate 161 connected to the grounding assembly 130;

[0060] Three connecting plates 162 are all disposed on the grounding plate 161;

[0061] There are six connection posts 163 , each connection post 163 is connected to a corresponding grounding cable inlet hole 114 , and the two upper and lower connection posts 163 in each column are connected to a connection plate 162 .

[0062] Each grounding column 131 is connected to a conductive sleeve 142, that is, each grounding column 131 is connected to a grounding cable 300. The six grounding cable entry holes 114 are arranged in two rows and three columns. The six grounding columns 131 are also arranged in two rows and three columns. The two upper and lower connection columns 163 in each column are connected to a connection plate 162. Three connection plates 162 are arranged in three columns. The grounding plate 161 is a long strip. The three connection plates 162 are connected and connected to the grounding assembly 130 on one side to achieve direct grounding. The intermediate connection assembly realizes the connection between the first plug-in connection unit and the grounding assembly 130.

[0063] like Figure 2 and Figure 3As shown, in some embodiments, the signal acquisition box 100 further includes three valve pads 170 disposed between the grounding plate 161 and the rear cover of the acquisition box body and corresponding to the three connecting plates 162. Between the grounding plate 161 and the rear cover of the acquisition box body, three valve pads 170 are disposed at positions corresponding to the positions of the three connecting plates 162. The valve pads 170 support the grounding plate 161 so that the grounding plate 161 does not directly contact the rear cover of the acquisition box body, and at the same time facilitate the grounding plate 161 to be fixed inside the box body after the insulating casting body 190 is filled in the box body.

[0064] like Figure 1 and Figure 4 As shown, in some embodiments, the waterproof connector 121 is disposed on the top plate 113 of the collection box, and a protective cover 122 is disposed on the waterproof connector 121 to protect the waterproof connector 121 and the internal wiring.

[0065] In some embodiments, the operation status acquisition unit includes six current transformers 180, each current transformer 180 is sleeved outside a connecting column 163, and is used to collect the ground loop current on a corresponding ground cable 300, and the collected ground loop current is transmitted to the signal processing box 200 through the waterproof connector 121. The signal acquisition box 100 has six current transformers 180 built in as the operation status acquisition unit, which is used to collect the ground loop current on the six ground cables 300. The center of each current transformer 180 passes through a connecting column 163, which is used to measure the ground loop current of a corresponding ground cable 300. The lead wires of the six current transformers 180 are reliably connected to the waterproof connector 121 in the top shield 122 of the box body through six embedded round nuts, and then the signals collected by the six current transformers 180 are transmitted to the signal processing box 200 through the waterproof connector 121, and then integrated and converted by the signal processing box 200 and transmitted to the background.

[0066] like Figure 1 and Figure 3 As shown, in some embodiments, the grounding assembly 130 includes a grounding post 131, one end of which is connected to the intermediate connection assembly, and the other end is arranged on the right side plate 112 of the collection box. A portion of the grounding post 131 is located inside the collection box and connected to the grounding plate 161 in the intermediate connection assembly, and another portion of the grounding post 131 is arranged on the right side plate 112 of the collection box for convenient direct grounding. In addition to the grounding post 131, the grounding assembly 130 may also include a protective cover 122 and other components such as a grounding wire and a connecting wire.

[0067] In some embodiments, the insulating casting 190 in the signal acquisition box 100 is made of epoxy resin. The insulating casting 190 is formed in the signal acquisition box 100 by a casting process of epoxy resin material. The intermediate connection assembly, the first plug-in connection unit, the operation status acquisition unit and the grounding column 131 inside the acquisition box are all poured into the insulating casting 190 and sealed in the acquisition box to form an integrated casting and sealing structure. Except for the grounding cable 300 and the second plug-in connection unit, other components are fixed and sealed inside the box by the insulating casting 190. The integrated casting and sealing structure is heat-resistant and corrosion-resistant, has good outward heat dissipation, high waterproof and dustproof protection level, good sealing, can meet the IP68 protection level, and can effectively protect the internal structure of the box. In addition, the insulation strength of epoxy resin is higher than that of air insulation, and the insulation performance is excellent, and the impact resistance level is higher. On the basis of meeting the impact voltage level and DC withstand voltage, the distance between each phase is closer, making the box smaller. In environments with high humidity, easy water accumulation, or harsh environments such as underground tunnels and riverbed tunnels, the grounding box can still be installed and used normally.

[0068] In some embodiments, the specific casting process of the insulating casting body 190 is as follows. First, the outer shell of the collection box is used as the casting cavity body. Except for the grounding cable 300 and the second plug-in connection unit, which are replaced by a mold at their original positions, other components are normally installed inside the box. The mold can seal the six grounding cable entry holes 114 of the box. Then, according to certain process parameters, the liquid epoxy resin insulating material is cast, vulcanized, and cooled to form. After the epoxy resin casting and molding is completed, the mold replaced at the position of the grounding cable 300 and the second plug-in connection unit is taken out to obtain the insulating casting body 190. The intermediate connection assembly, the first plug-in connection unit, the operation status collection unit and the grounding column 131 in the collection box are all tightly wrapped and sealed by the insulating casting body 190, and the access position of the grounding cable 300 and the second plug-in connection unit is reserved.

[0069] like Figure 1 and Figure 6As shown, in some embodiments, the signal processing box 200 includes a processing box 210 and a power supply module 220, a collection processing module 230 and a signal transmission module 240 arranged inside the processing box 210; the power supply module 220 is used to supply power to the collection processing module 230 and the signal transmission module 240; the collection processing module 230 is used to receive and process the ground loop current collected by the operation status collection unit; the signal transmission module 240 is used to transmit the data processed by the collection processing module 230. The signal processing box 200 receives the ground loop current signal from the operation status collection unit in the signal collection box 100, which is integrated and converted by the collection processing module 230 and transmitted to the background, thereby monitoring the operation status of the cable in real time and uploading it to the monitoring platform synchronously, realizing monitoring automation, timely discovering problems in the operation of the cable, protecting the normal operation of the power line, effectively preventing sudden power outages, and reducing losses caused by power outages and power outage maintenance.

[0070] In some embodiments, the signal processing box 200 can be linked to the environmental monitoring devices, video monitoring devices, etc. installed in the surrounding area, and uploaded to the background through the acquisition and processing module 230 of the signal processing box 200, so as to monitor the operation status of the smart grounding box and the environmental conditions nearby in real time, reduce the demand for manual operation and maintenance, and realize the automation and intelligence of grounding system monitoring.

[0071] In some embodiments, there are various environmental conditions in the power system, and the ways of power supply and signal transmission are also limited. According to different on-site environments, a power supply method suitable for the on-site installation environment can be adopted, including battery power supply, 220V AC power supply, CT power supply, solar power supply, etc. Different power supply modules 220 are selected to power the acquisition and processing module 230 and the signal transmission module 240 to ensure the safe and stable operation of each component. Depending on the different installation locations, the signal transmission method that can be selected may also be different. You can choose optical fiber transmission or wireless transmission, including 4G, WiFi, Bluetooth, etc. The signal transmission module 240 transmits the information integrated and converted by the acquisition and processing module 230 to the background, so that the staff can observe whether there are safety hazards here.

[0072] In some embodiments, when the transmission protocol is not inconsistent with the acquisition processing module 230, a matching signal transmission module 240 may be provided to transmit the integrated and processed information to the monitoring platform.

[0073] like Figure 1 and Figure 6As shown, in some embodiments, the signal processing box 200 further includes a plurality of current loops 250, which are used to be externally mounted on a plurality of main cables to collect the operating current on the main cables and transmit it to the acquisition processing module 230. The signal processing box 200 receives the ground loop current signals of the six-way grounding cables 300 collected by the six current transformers 180 in the signal acquisition box 100, and the operating current signals of the three-phase main cables collected by the three current loops 250 externally mounted on the three-phase main cables, which are integrated and converted by the acquisition processing module 230 and transmitted to the background, thereby enabling real-time monitoring of the operating status of the cables and synchronous uploading to the monitoring platform, realizing automated monitoring, timely discovering problems in the operation of the cables, protecting the normal operation of the power lines, effectively preventing sudden power outages, and reducing losses caused by power outages and power outage maintenance.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0075] Although the embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, the present invention is not limited to the above embodiments. Those skilled in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and purpose of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A sealed six-wire single-core intelligent direct grounding box, characterized in that: include: A signal collection box, comprising a collection box, a grounding component and a waterproof connector arranged on the collection box, an intermediate connection component arranged in the collection box, six groups of first plug-in connection units and an operation status collection unit; the intermediate connection component is connected to the connection component; the grounding component is used for grounding; the six groups of the first plug-in connection units are all connected to the intermediate connection component; the collection box is filled with an insulating casting; each grounding cable is connected to a second plug-in connection unit, and the second plug-in connection unit is connected with the first plug-in connection unit; The operation status acquisition unit is at least used to collect the grounding circulation current on the grounding cable; The signal processing box is connected to the operation status acquisition unit in the signal acquisition box through the waterproof connector, and is used to monitor the operation data of the grounding cable and the main cable.

2. The sealed six-wire single-core intelligent direct grounding box according to claim 1 is characterized in that: The front cover plate of the acquisition box is provided with six grounding cable inlet holes, which are arranged in three rows, each row including two grounding cable inlet holes, and the six grounding cable inlet holes are used for connecting the grounding cables.

3. The sealed six-wire single-core intelligent direct grounding box according to claim 2 is characterized in that: Each of the first plug connection units comprises: An aluminum sleeve is arranged in the collection box and located at the grounding cable inlet hole; A conductive sleeve is arranged in the collection box and corresponds to the aluminum sleeve, and is used to connect the second plug-in connection unit and the intermediate connection assembly.

4. The sealed six-wire single-core intelligent direct grounding box according to claim 3 is characterized in that: The second plug-in connection unit comprises an inlet sleeve, a gasket, a sealing sleeve, a thrust ring, a plug-in head, a retaining spring and a conductive sheet. The inlet sleeve, the gasket, the sealing sleeve and the thrust ring are sequentially sleeved on one of the grounding cables. The plug-in head is crimped on the core of the grounding cable. The retaining spring and the conductive sheet are fixedly arranged on the plug-in head. When the second plug-in connection unit is connected with the first plug-in connection unit, the incoming wire sleeve is connected with the aluminum sleeve, and the plug head is connected with the conductive sleeve.

5. The sealed six-wire single-core intelligent direct grounding box according to claim 2 is characterized in that: The intermediate connection assembly comprises: A grounding plate connected to the grounding component; Three connecting plates are all arranged on the grounding plate; There are six connection posts, each of which is connected to a corresponding grounding cable inlet hole, and the upper and lower connection posts in each column are connected to a connection plate.

6. The sealed six-wire single-core intelligent direct grounding box according to claim 5 is characterized in that: The signal collection box further comprises three valve plate pads which are arranged between the grounding plate and the rear cover plate of the collection box body and correspond to the three connecting plates.

7. The sealed six-wire single-core intelligent direct grounding box according to claim 5 is characterized in that: The operation status acquisition unit includes six current transformers, each of which is sleeved outside a connecting column and is used to collect the grounding loop current on a corresponding grounding cable. The collected grounding loop current is transmitted to the signal processing box through the waterproof connector.

8. The sealed six-wire single-core intelligent direct grounding box according to claim 1 is characterized in that: The grounding component comprises a grounding post, one end of which is connected to the middle connecting component, and the other end of which is arranged on the right side plate of the collection box.

9. The sealed six-wire single-core intelligent direct grounding box according to claim 1 is characterized in that: The signal processing box includes a processing box body and a power supply module, an acquisition processing module and a signal transmission module arranged inside the processing box body; the power supply module is used to supply power to the acquisition processing module and the signal transmission module; the acquisition processing module is used to receive and process the ground loop current acquired by the operating status acquisition unit; the signal transmission module is used to transmit the data processed by the acquisition processing module.

10. The sealed six-wire single-core intelligent direct grounding box according to claim 9, characterized in that: The signal processing box also includes a plurality of current loops, which are used to be externally mounted on a plurality of the main cables to collect the operating current on the main cables and transmit the current to the collection and processing module.

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