Self-power-taking and sampling load current monitoring module

Abstract

The utility model relates to the technical field of energy-taking devices, in particular to a self-power-taking and sampling load current monitoring module, which comprises a fault indicator energy-taking device, a threading hole is arranged in the fault indicator energy-taking device, a placing groove is arranged at the bottom end of the inner side of the threading hole, a sampling magnetic core is arranged on the inner side of the placing groove, and the sampling magnetic core is connected with the fault indicator energy-taking device. A protection cover is fixedly installed at the bottom end of the inner side of the threading hole and located on the outer side of the containing groove, the rear end of the protection cover is fixedly connected with an inserting block, a fixing box is fixedly installed at the front end of the protection cover, and an entering groove is formed in the position, corresponding to the fixing box, of the inner side of the threading hole; compared with the existing self-power-taking and sampling load current monitoring module, the self-power-taking and sampling load current monitoring module has the advantages that the sampling magnetic core can be prevented from being exposed and corroded or polluted through the design, the service life of the sampling magnetic core is effectively prolonged, and the current monitoring effect is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of energy acquisition devices, and in particular to a self-powered and sampled load current monitoring module. Background Art

[0002] As the main physical equipment in the power transmission link of the power grid, the transmission line is the largest component of the power system. Its operating environment is harsh, the terrain is complex, and maintenance is difficult, which has a significant impact on the safety and reliability of the power system. In the ring network distribution system, especially the system that uses a large number of ring network load switches, if a short circuit fault or ground fault occurs in the lower-level distribution network system, the power supply system at the upper level must be disconnected within the specified time to prevent major accidents. It is necessary to sample and monitor the current through the fault indicator energy device, and the self-power and sampling load current monitoring module is located at the connection between the device and the high-voltage conductor. The self-power and sampling load current monitoring module determines whether there is any power theft or leakage at the low-voltage end by measuring the current of the high-voltage conductor.

[0003] Existing self-powered and sampled load current monitoring modules mainly sample the current of high-voltage conductors through an internal magnetic core and make judgments by comparing the primary and secondary currents. However, the magnetic core is usually external and exposed to the outside for a long time, which is easily corroded or contaminated, thus affecting its monitoring effect.

[0004] Therefore, it is particularly important to design a self-powered and sampled load current monitoring module to solve the above-mentioned defects. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model designs a self-power and sampling load current monitoring module, which aims to solve the technical problem that the magnetic core in the self-power and sampling load current monitoring module in the existing technology is exposed to the outside for a long time and is easily corroded or contaminated, thereby affecting its monitoring effect.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A self-power supply and sampling load current monitoring module includes a fault indicator energy supply device, a wire threading hole is provided inside the fault indicator energy supply device, a placement groove is provided at the bottom end of the inner side of the wire threading hole, a sampling magnetic core is installed on the inner side of the placement groove, a protective cover is fixedly installed at the bottom end of the inner side of the wire threading hole and located on the outer side of the placement groove, a plug-in block is fixedly connected to the rear end of the protective cover, a fixing box is fixedly installed at the front end of the protective cover, and an entry groove is provided at a position corresponding to the fixing box on the inner side of the wire threading hole.

[0008] As a preferred solution of the present invention, a sealing groove is provided on the outer side of the placement groove, and a rubber sealing ring is installed on the inner side of the sealing groove.

[0009] As a preferred solution of the present invention, positioning columns are fixedly connected to the four corners of the bottom of the protective cover, positioning holes are opened at positions corresponding to the multiple groups of positioning columns on the inner side of the threading hole, and multiple groups of anti-slip protrusions are fixedly connected to the rear end of the inner side of the protective cover.

[0010] As a preferred solution of the present invention, a plug-in slot is provided at a position inside the threading hole corresponding to the plug-in block, and a fastening protrusion is fixedly connected to the bottom end of the plug-in block and located inside the plug-in slot.

[0011] As a preferred solution of the present invention, the left and right ends of the fixed box are fixedly connected with fixed blocks, and the two sets of fixed blocks are fixedly connected to the protective cover by fixing screws. An embedding groove is opened at the position corresponding to the fixed block on the inner side of the wire threading hole.

[0012] As a preferred solution of the present invention, a movable groove is provided inside the fixed box, and fixed plugs are slidably connected to the left and right ends of the inner side of the movable groove. A spring is fixedly connected to the inner side of the movable groove and located between the two groups of fixed plugs.

[0013] As a preferred solution of the present invention, an operating buckle groove is provided at a position on the top of the fixing box corresponding to the fixing plug-in block, and a fixing card groove is provided inside the entry groove at a position corresponding to the fixing plug-in block.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] In the utility model, through the coordinated design of the protective cover, the plug-in block, the fixing box and the entry slot, when the protective cover is installed, the plug-in block is inserted into the interior of the plug-in slot to fix its rear end, and the fixing box is convenient for fixing the front end of the protective cover, and the protective cover is fixedly installed on the outside of the placement slot, and the connection between the protective cover and the placement slot is sealed by the rubber sealing ring on the inside of the sealing slot, so that the sampling magnetic core inside the placement slot can be protected by the protective cover to prevent the sampling magnetic core from being exposed and corroded or contaminated, effectively extending its service life, thereby ensuring the monitoring effect of the current, and at the same time, it is also convenient to replace the protective cover after it is worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the protective cover after installation of the utility model;

[0018] Figure 3This is a schematic diagram of the placement slot structure of the utility model;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a schematic diagram of the protective cover structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the fixed box of the utility model;

[0022] Figure 7 This is a schematic diagram of the fixed plug structure of the utility model.

[0023] In the figure: 1. Fault indicator energy taking device; 2. Threading hole; 3. Placement slot; 4. Sampling magnetic core; 401. Sealing slot; 402. Rubber sealing ring; 5. Protective cover; 501. Positioning column; 502. Positioning hole; 503. Anti-slip ridge; 6. Plug-in block; 601. Plug-in slot; 602. Fastening protrusion; 7. Fixing box; 701. Fixing block; 702. Fixing screw; 703. Embedded slot; 704. Movable slot; 705. Fixed plug-in block; 706. Spring; 707. Operating buckle slot; 708. Fixed card slot; 8. Entry slot. DETAILED DESCRIPTION

[0024] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Example:

[0026] See also Figure 1-Figure 7 , the utility model provides a technical solution:

[0027] A self-power supply and sampling load current monitoring module includes a fault indicator energy supply device 1, a wire threading hole 2 is provided inside the fault indicator energy supply device 1, a placement groove 3 is provided at the bottom end of the inner side of the wire threading hole 2, a sampling magnetic core 4 is installed on the inner side of the placement groove 3, a protective cover 5 is fixedly installed at the bottom end of the inner side of the wire threading hole 2 and located on the outer side of the placement groove 3, a plug-in block 6 is fixedly connected to the rear end of the protective cover 5, a fixing box 7 is fixedly installed at the front end of the protective cover 5, and an entry groove 8 is provided at a position corresponding to the fixing box 7 on the inner side of the wire threading hole 2.

[0028] First, a sealing groove 401 is opened on the outside of the placement slot 3, and a rubber sealing ring 402 is installed on the inside of the sealing groove 401. The protective cover 5 is fixedly installed on the outside of the placement slot 3, and the connection between the protective cover 5 and the placement slot 3 is sealed by the rubber sealing ring 402 on the inside of the sealing groove 401, so that the sampling magnetic core 4 inside the placement slot 3 can be protected by the protective cover 5, preventing the sampling magnetic core 4 from being exposed to erosion or pollution, effectively extending its service life, and thus ensuring the monitoring effect of the current.

[0029] Furthermore, positioning posts 501 are fixedly connected to the four corners of the bottom of the protective cover 5, and positioning holes 502 are opened at the positions corresponding to the multiple groups of positioning posts 501 on the inner side of the wire threading hole 2. The rear end of the inner side of the protective cover 5 is fixedly connected with multiple groups of anti-slip ridges 503. After the protective cover 5 is installed into the interior of the wire threading hole 2, the multiple groups of positioning posts 501 are inserted into the inner side of the positioning holes 502 to position and fix the protective cover 5 at various locations, thereby ensuring the overall firmness of the protective cover 5 after installation. At the same time, after the high-voltage wire passes through the interior of the wire threading hole 2, the multiple groups of anti-slip ridges 503 can improve the fixing effect between the protective cover 5 and the high-voltage wire, thereby ensuring that the sampling magnetic core 4 can stably sample and monitor the current.

[0030] Then, a plug-in groove 601 is opened at a position corresponding to the plug-in block 6 on the inner side of the wire threading hole 2, and a fastening protrusion 602 is fixedly connected to the bottom end of the plug-in block 6 and located on the inner side of the plug-in groove 601. When installing the protective cover 5, the plug-in block 6 is inserted into the plug-in groove 601 to fix its rear end. After the plug-in block 6 is inserted, the fastening protrusion 602 is located on the inner side of the plug-in groove 601, which can effectively improve the fastening effect of the plug-in block 6.

[0031] Secondly, the left and right ends of the fixing box 7 are fixedly connected with fixing blocks 701. The two sets of fixing blocks 701 are fixedly connected to the protective cover 5 by fixing screws 702. An embedding groove 703 is opened at the position corresponding to the fixing block 701 on the inner side of the threading hole 2. The fixing block 701 is fixed by the fixing screw 702, so that the fixing box 7 is installed and fixed to the front end of the protective cover 5. Then the fixing box 7 is inserted into the inner side of the slot 8, so that the fixing block 701 enters the inner side of the embedding slot 703, thereby fixing the front end of the protective cover 5.

[0032] Finally, a movable groove 704 is provided inside the fixed box 7, and the left and right ends of the inner side of the movable groove 704 are slidably connected with fixed plug blocks 705. A spring 706 is fixedly connected to the inner side of the movable groove 704 and located between the two sets of fixed plug blocks 705. An operating buckle groove 707 is provided at the top of the fixed box 7 corresponding to the fixed plug block 705, and a fixed card groove 708 is provided at the position corresponding to the fixed plug block 705 inside the entry slot 8. When the fixed box 7 is inserted into the inner side of the entry slot 8, the fixed plug block 705 is pressed and retracted into the inner side of the fixed box 7. When the locking cam 705 is in the unlocked position, the locking cam 705 is engaged with the locking cam 706 and the locking cam 707 is engaged with the locking cam 706. When the locking cam 705 is in the unlocked position, the locking cam 705 is engaged with the locking cam 706 and the locking cam 707 is engaged with the locking cam 706.

[0033] When the locking cam 705 is in the closed position, the locking cam 706 is engaged with the locking cam 708 and the locking cam 709 is engaged with the locking cam 709. When the locking cam 705 is in the closed position, the locking cam 705 is engaged with the locking cam 709 and the locking cam 709 is engaged with the locking cam 709. The rear end is fixed to the part, and the protective cover 5 is fixedly installed on the outside of the placement slot 3. The connection between the protective cover 5 and the placement slot 3 is sealed by the rubber sealing ring 402 on the inside of the sealing slot 401, so that the sampling magnetic core 4 inside the placement slot 3 can be protected by the protective cover 5. The sampling magnetic core 4 is used to sample the current of the high-voltage wire, and the comparison of the primary current and the secondary current is used to judge whether there is any electricity theft or leakage at the low-voltage end. The whole operation process is simple and convenient. Compared with the existing self-power and sampling load current monitoring module, the utility model can avoid the sampling magnetic core 4 from being exposed to corrosion or pollution through design, effectively prolonging its service life, thereby ensuring the monitoring effect of the current.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-powered and sampled load current monitoring module, comprising a fault indicator energy taking device (1), characterized in that: The fault indicator energy-collecting device (1) is provided with a threading hole (2) inside, a placement slot (3) is provided at the bottom end of the inner side of the threading hole (2), a sampling magnetic core (4) is installed on the inner side of the placement slot (3), a protective cover (5) is fixedly installed at the bottom end of the inner side of the threading hole (2) and located outside the placement slot (3), a plug-in block (6) is fixedly connected to the rear end of the protective cover (5), a fixing box (7) is fixedly installed at the front end of the protective cover (5), and an entry slot (8) is provided at a position corresponding to the fixing box (7) on the inner side of the threading hole (2).

2. The self-powered and sampled load current monitoring module according to claim 1, characterized in that: A sealing groove (401) is provided on the outer side of the placement groove (3), and a rubber sealing ring (402) is installed on the inner side of the sealing groove (401).

3. The self-powered and sampled load current monitoring module according to claim 1, characterized in that: Positioning posts (501) are fixedly connected to the four corners of the bottom of the protective cover (5), positioning holes (502) are opened at positions corresponding to the multiple groups of positioning posts (501) on the inner side of the threading hole (2), and multiple groups of anti-slip convex strips (503) are fixedly connected to the rear end of the inner side of the protective cover (5).

4. The self-powered and sampled load current monitoring module according to claim 1, characterized in that: A plug-in slot (601) is provided at a position inside the threading hole (2) corresponding to the plug-in block (6), and a fastening protrusion (602) is fixedly connected to the bottom end of the plug-in block (6) and located inside the plug-in slot (601).

5. The self-powered and sampled load current monitoring module according to claim 1, characterized in that: The left and right ends of the fixing box (7) are fixedly connected with fixing blocks (701), and the two sets of fixing blocks (701) are fixedly connected to the protective cover (5) through fixing screws (702). An embedding groove (703) is provided at a position corresponding to the fixing block (701) on the inner side of the threading hole (2).

6. The self-powered and sampled load current monitoring module according to claim 1, characterized in that: A movable groove (704) is provided inside the fixed box (7), and fixed plugs (705) are slidably connected to the left and right ends of the inner side of the movable groove (704). A spring (706) is fixedly connected to the inner side of the movable groove (704) and located between the two groups of fixed plugs (705).

7. The self-powered and sampled load current monitoring module according to claim 6, characterized in that: An operating buckle slot (707) is provided at a position on the top of the fixing box (7) corresponding to the fixing plug-in block (705), and a fixing card slot (708) is provided inside the entry slot (8) at a position corresponding to the fixing plug-in block (705).

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