A distribution network PMU type sensor

Abstract

The utility model relates to sensor technical field discloses a kind of network PMU type sensors, including base, top cover is fixed on base, screw rod is fixed on base, screw rod is connected with top cover by screw thread across base, wire slot is equipped on base, current sensor is symmetrically equipped on one side of wire slot;Supporting seat and wire bundling plate are fixed in wire slot, wire bundling plate is above supporting seat, arc slot is fixed below wire bundling plate;Two side frames are fixedly equipped on supporting seat, shaft rod is fixed horizontally on side frame, symmetrically distributed supporting claw is fixed on shaft rod, spring is fixed below supporting claw.The utility model is fixed to cable by wire bundling plate and supporting seat, supporting claw is positioned below cable, cable is clamped between arc slot and supporting claw, prevent cable from separating from sensor, avoid sensor slack, multiple springs are set on base, to ensure that top cover is installed with base, reduce the probability of top cover deviation, help to improve the installation accuracy of product, improve the efficiency of assembly.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, specifically a power distribution network PMU type sensor. Background Technology

[0002] Distribution network PMU type sensors are used in distribution network phasor measurement units to realize functions such as pre-fault warning, fault location during fault, and fault tracing in practice.

[0003] In the prior art, such as the application number CN108594069A, the disclosed title is: An Improved Smart Grid Sensing Device, which includes a housing and an electronic circuit board, an opening and closing locking assembly, a cavity provided inside the housing, the housing including an upper housing and a lower housing that can be separated from each other, and the cavity including a first cavity and a second cavity that are relatively disposed in the upper housing and the lower housing.

[0004] However, in the existing sensing devices mentioned in the technology, when the cable is fixed by the cavity, the cable and the cavity are prone to slippage, causing the sensing device to move on the cable and the positioning position to deviate, which can easily lead to misjudgment of the positioning position. Therefore, it is necessary to design a distribution network PMU type sensor. Utility Model Content

[0005] The purpose of this invention is to provide a power distribution network PMU type sensor to solve the problems in the prior art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A power distribution network PMU type sensor includes a base, a top cover fixed on the base, a screw fixed on the base, the screw passing through the base and threadedly connected to the top cover, and a wire groove provided on the base, with current sensors symmetrically arranged on one side of the wire groove.

[0008] A support base and a wire harness plate are fixed inside the wire groove. The wire harness plate is located above the support base, and an arc-shaped groove is fixed below the wire harness plate.

[0009] Two side frames are fixedly mounted on the support base. A shaft is horizontally fixed on the side frame, and symmetrically distributed claws are fixed on the shaft. A spring is fixed below the claws.

[0010] Furthermore, the arc-shaped groove is provided with an array of interval slots, and the lower part of the cable tray is symmetrically fixed with positioning slots.

[0011] Furthermore, the base is provided with countersunk holes in an array, and a support spring is fixed inside the countersunk holes. The top cover is provided with protruding rods in an array, and the protruding rods are connected to the countersunk holes.

[0012] Furthermore, a plug rod is fixed on the side frame, the plug rod is connected to the positioning groove, the claw is located below the interval groove, and a groove is provided above the claw, in which a rubber pad for anti-slip is installed.

[0013] Furthermore, a vertical rod is fixed on the support base and below the claw, a spring is fitted on the vertical rod, and a limiting inclined surface is fixed on the support base and on one side of the vertical rod, the limiting inclined surface contacting the claw.

[0014] Furthermore, a battery compartment is fixedly located below the base, an indicator light is fixedly located below the base, and a device nameplate is fixedly located below the base.

[0015] The beneficial effects of this utility model are:

[0016] 1. The present invention relates to a power distribution PMU type sensor, wherein the cable is fixed by a cable tray and a support base, and the lower part of the cable is limited by a claw, which clamps the cable between the arc groove and the claw to prevent the cable from falling off the sensor and to avoid the sensor from becoming loose.

[0017] 2. The power distribution PMU type sensor of this utility model has multiple springs on the base to reduce the probability of top cover misalignment when the top cover is installed with the base, which helps to improve the installation accuracy of the product and increase the assembly efficiency. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of the sensor of this utility model;

[0020] Figure 2 This is a structural schematic diagram of the base of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the support base of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the wire harness plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the bottom structure of the sensor of this utility model;

[0024] Figure 6 This is a bottom view of the sensor of this utility model;

[0025] Figure 7 This is a utility model Figure 6 Sectional view along line AA.

[0026] The attached diagram is described below:

[0027] 1. Base; 2. Top cover; 3. Cable tray; 4. Cable management plate; 5. Support base; 6. Current sensor; 11. Countersunk hole; 12. Support spring; 13. Battery compartment; 14. Indicator light; 15. Screw; 16. Equipment nameplate; 21. Protruding rod; 41. Arc groove; 42. Spacing groove; 43. Positioning groove; 51. Side frame; 52. Insert rod; 53. Limiting slope; 54. Upright pole; 55. Spring; 56. Shaft; 57. Claw; 58. Groove; 59. Rubber pad. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] A type of distribution network PMU sensor, such as Figures 1-7 As shown, the distribution network PMU type sensor includes a base 1, a top cover 2 fixedly mounted on the base 1, a screw 15 fixedly mounted on the base 1, the screw 15 passing through the base 1 and threadedly connected to the top cover 2, an array of countersunk holes 11 on the base 1, a support spring 12 fixedly mounted inside the countersunk holes 11, a wire groove 3 on the base 1, and symmetrically distributed current sensors 6 on one side of the wire groove 3, used as a distribution network phasor measurement unit, responsible for collecting current and harmonic data.

[0030] A support base 5 and a cable tie plate 4 are fixedly installed inside the cable tray 3. The cable tie plate 4 is located above the support base 5. An arc-shaped groove 41 is fixedly installed below the cable tie plate 4. The arc-shaped groove 41 is above the cable and fixes the cable. An array of spaced grooves 42 are opened inside the arc-shaped groove 41. A symmetrically distributed positioning groove 43 is fixedly installed below the cable tie plate 4.

[0031] Two side frames 51 are fixedly mounted on the support base 5. The two side frames 51 are symmetrically arranged. Insert rods 52 are fixedly mounted on the side frames 51. The insert rods 52 are connected and positioned with the positioning grooves 43. A shaft 56 is horizontally fixed on the side frame 51. Symmetrically distributed claws 57 are fixedly mounted on the shaft 56. The claws 57 are located below the interval grooves 42. A groove 58 is opened above the claws 57. A rubber pad 59 is installed in the groove 58. When the groove 58 contacts the cable, the rubber pad 59 is used to prevent slippage and prevent the cable from slipping through the distribution network PMU type sensor.

[0032] A vertical rod 54 is fixedly installed on the support base 5 and below the claw 57. A spring 55 is fitted on the vertical rod 54. The top of the spring 55 is fixedly connected to the claw 57 to support the claw 57 and the cable on it, and to fix the cable between the claw 57 and the arc groove 41.

[0033] A limiting inclined surface 53 is fixedly provided on the support base 5 and on one side of the upright 54. The limiting inclined surface 53 contacts the lower part of the claw 57 to limit and fix the claw 57, preventing the claw 57 from detaching from the cable when the spring 55 is relaxed, thus improving the fixing stability of the claw 57.

[0034] A battery compartment 13 is fixedly installed below the base 1. An indicator light 14 is fixedly installed below the base 1 to indicate the working status and alarm. A device nameplate 16 is fixedly installed below the base 1 to indicate the device information and important parameters.

[0035] The top cover 2 is fixedly provided with arrayed protruding rods 21. The protruding rods 21 are located in the countersunk hole 11. The upper end of the support spring 12 is connected to the top cover 2 to provide auxiliary support for the installation of the top cover 2, avoid deviation in the gap between the top cover 2 and the base 1, reduce installation deviation, and prevent the top cover 2 from tilting up and causing damage to the cable.

[0036] This product works by pressing the cable monitoring section onto the claw 57, then the claw 57 compresses the spring 55 downwards to keep the cable horizontally passing through the cable groove 3. Then the cable tie plate 4 is pressed onto the support base 5, and finally the top cover 2 is pressed onto the base 1. The protruding rod 21 is connected to the countersunk hole 11 to position the top cover 2. Then, by turning the screw 15, the top cover 2 and the base 1 are fixedly connected. The cable is locked between the cable tie plate 4 and the support base 5. The current sensor 6 monitors the internal current to prevent high-voltage cable and equipment failure.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A network commissioning PMU type sensor, characterized in that, The distribution network PMU type sensor includes a base (1), a top cover (2) fixed on the base (1), a screw (15) fixed on the base (1), the screw (15) passes through the base (1) and is threadedly connected to the top cover (2), a wire groove (3) is provided on the base (1), and a current sensor (6) is symmetrically provided on one side of the wire groove (3). The cable tray (3) is fixed with a support base (5) and a cable tie plate (4). The cable tie plate (4) is located above the support base (5), and an arc-shaped groove (41) is fixed below the cable tie plate (4). Two side frames (51) are fixed on the support base (5). A shaft (56) is horizontally fixed on the side frame (51). A symmetrically distributed claw (57) is fixed on the shaft (56). A spring (55) is fixed below the claw (57).

2. The network PMU type sensor according to claim 1, characterized in that, The arc-shaped groove (41) is provided with an array of interval grooves (42), and the lower part of the wire harness plate (4) is symmetrically fixed with positioning grooves (43).

3. The network PMU type sensor according to claim 1, wherein, The base (1) is provided with countersunk holes (11) arranged in an array, and a support spring (12) is fixed in the countersunk holes (11). The top cover (2) is provided with protruding rods (21) arranged in an array, and the protruding rods (21) are connected to the countersunk holes (11).

4. The network PMU type sensor according to claim 2, wherein, A rod (52) is fixed on the side frame (51). The rod (52) is connected to the positioning groove (43). The claw (57) is located below the spacer groove (42). A groove (58) is provided above the claw (57). A rubber pad (59) for anti-slip is installed in the groove (58).

5. The network PMU type sensor according to claim 4, characterized in that, A vertical rod (54) is fixed on the support base (5) and below the claw (57). A spring (55) is fitted on the vertical rod (54). A limiting inclined surface (53) is fixed on the support base (5) and on one side of the vertical rod (54). The limiting inclined surface (53) contacts the claw (57).

6. The network PMU type sensor according to claim 1, wherein, A battery compartment (13) is fixed below the base (1), an indicator light (14) is fixed below the base (1), and a device nameplate (16) is fixed below the base (1).

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