Device capable of being conveniently fixed on power transmission cable to suppress harmonic current

Abstract

The utility model discloses a device capable of being conveniently fixed on a power transmission cable to suppress harmonic current, which comprises a cylindrical shell and a suppression device main body mounted in the shell in a matched manner, and coaxial mounting holes are formed in the shell and the suppression device main body along the axial direction in a penetrating manner; the shell is composed of a first shell body and a second shell body which can be opened and closed, one ends of the first shell body and the second shell body are movably connected, and the other ends are detachably connected through a clamping structure. The restraining device body comprises a graphene layer on the outer layer, a rare earth alloy layer on the middle layer and an aluminum magnesium alloy layer on the inner layer. According to the utility model, by optimizing the structural design, the suppression device main body and the shell can be arranged on the power transmission cable in a coating manner; in addition, due to the open-close type design of the shell, convenient installation can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of harmonic current suppression, in particular to a device for suppressing harmonic current and conveniently fixed on power cable. BACKGROUND

[0002] The existence of harmonic current can seriously affect the power quality of the power grid, leading to problems such as voltage waveform distortion, voltage fluctuation and flicker, and also increasing the loss of the power grid, which may cause damage to the equipment in the power grid, such as increasing the temperature rise of the transformer, motor and other equipment, and shortening the service life of the equipment.

[0003] The prior art usually uses a harmonic current suppression device to control the generation of harmonic current, which forms a low-impedance channel for specific harmonics through a carefully designed circuit structure, guides these harmonic currents to the inside of the filter for consumption or suppression, thereby significantly reducing the harmonic content in the power grid.

[0004] For example, the application publication number CN119153182A discloses a power-saving patch and its method, which specifically discloses at least one patch body containing rare earth, cobalt, nickel, aluminum oxide, magnesium oxide, and iron oxide, and mixed together, one side of the patch body is provided with at least one coupling member, and the coupling member is used to fix the patch body on one side of an electric power device.

[0005] Although the above-mentioned power-saving patch can suppress harmonic current, it still has some shortcomings; for example, the power-saving patch is a patch made by mixing a variety of materials, and its application scene is mainly for power equipment, and when in use, the coupling member on one side of the patch body is fixed to the power equipment by adhesive. However, in other scenarios, such as fixing on power cable, it cannot be conveniently fixed on power cable due to the structure of the patch.

[0006] Therefore, it is necessary to further improve the prior art. UTILITY MODEL CONTENT

[0007] In view of the problems existing in the prior art, the purpose of the utility model is to provide a device for suppressing harmonic current and conveniently fixed on power cable, which can be installed on power cable by optimizing the structure design of the suppression device main body and the shell, and can be conveniently installed by the opening and closing design of the shell.

[0008] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0009] The utility model provides a device for conveniently fixing on power transmission cable to restrain harmonic current, including cylindrical shell and the restraint device main part of matching installation in the shell, the shell and the restraint device main part are all equipped with the coaxial mounting hole of installation hole along the axial direction, the shell includes the first casing and the second casing who can open and shut, and the one end of both is swing joint, and the other end realizes the detachable connection through the carding structure, the restraint device main part includes the graphene layer of outer layer, the rare earth alloy layer of middle layer and the aluminium magnesium alloy layer of inner layer.

[0010] Further, the upper and lower sides of the first casing are respectively provided with clamping seats, and a fixing hole is formed in each clamping seat for a band or a rope to pass through to achieve auxiliary fixation of the shell on the power transmission cable.

[0011] Further, one end of the first casing and the second casing is pivotally connected.

[0012] Further, the upper and lower sides of the first casing away from the pivot end are respectively provided with connecting arms extending towards the second casing, and a clamping groove is formed in each connecting arm.

[0013] Further, the upper and lower sides of one end of the second casing are respectively provided with clamping platforms matched with the clamping grooves.

[0014] Further, one end of the clamping platform towards the connecting arm has a guide slope.

[0015] The utility model has the advantages that:

[0016] The utility model optimizes the structure design, so that the restraint device main part and the shell can be installed on the power transmission cable, and the shell can be easily opened and closed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the overall structure schematic diagram of the utility model;

[0018] Figure 2 is the overall structure schematic diagram of the utility model after opening the shell;

[0019] Figure 3 is the state schematic diagram of the utility model after opening the shell;

[0020] Figure 4 is the structure schematic diagram of the restraint device main part of the utility model.

[0021] REFERENCE SIGNS

[0022] 1, shell; 11, first casing; 111, connecting arm; 112, clamping groove;

[0023] 12, second shell; 121, card station; 122, guide slope; 13, pivot; 14, card seat;

[0024] 15, fixing hole;

[0025] 2, suppression device body; 21, graphene layer; 22, rare earth alloy layer; 23, aluminum magnesium alloy layer;

[0026] 3, mounting hole. DETAILED DESCRIPTION

[0027] The utility model will be further described below in combination with the drawings and specific examples, the following description is only exemplary, not limit the protection scope of the utility model.

[0028] As Figures 1-4 shown, a kind of device for suppressing harmonic current fixed on power cable line, including cylindrical shell 1 and matching installation in shell 1 of suppression device body 2, shell 1 and suppression device body 2 are evenly provided with coaxial mounting hole 3 along axial direction;In this embodiment, power cable line can directly pass through the mounting hole 3 of shell 1 and suppression device body 2, realize the installation and fixation of suppression device body 1 and shell 2 by the adhesion of hole wall and cable.

[0029] As Figures 2-3 shown, shell 1 includes by first shell 11 and second shell 12 of openable and closeable, one end of two movable connections, and the other end is realized detachable connection by clamping structure;Specifically, first shell 11 and second shell 12 one end movable connection by pivot 13;The upper and lower sides of the end of first shell 11 away from pivot 13 are respectively equipped with the connecting arm 111 extending to the direction of second shell 12, and the clamping groove 112 is formed in each connecting arm 111;The upper and lower sides of one end of second shell 12 are respectively equipped with the card station 121 matched with clamping groove 112.In this embodiment, shell 1 is composed of first shell 11 and second shell 12, one end is realized articulated movable connection by pivot 13, and the other end is realized the clamping between first shell 11 and second shell 12 by the cooperation of clamping groove 112 and card station 121.By the above-mentioned setting, shell 1 can be fixed in its interior with suppression device body 2.

[0030] As Figure 3 shown, to make the clamping between first shell 11 and second shell 12 smooth, the one end of card station 121 towards connecting arm 111 has guide slope 122.

[0031] As Figure 4As shown, the suppression device body 2 comprises an outer graphene layer 21, an intermediate rare earth alloy layer 22 and an inner aluminum-magnesium alloy layer 23. The graphene layer 21 in this embodiment functions to block electromagnetic waves, the rare earth alloy layer 22 functions to absorb electromagnetic waves, and the aluminum-magnesium alloy layer 23 functions to absorb electromagnetic wave interference. Through the above arrangement, the suppression device body 1 can effectively suppress harmonic current.

[0032] As shown in the drawings, Figure 3 As shown, the upper and lower sides of the first housing 11 are respectively provided with a card seat 14, and each card seat 14 is respectively provided with a fixing hole 13 for passing a band or a rope to achieve auxiliary fixing of the shell 1 on the power cable. In this embodiment, after the shell 1 and the suppression device body 2 are installed on the power cable, a band or a rope is arranged to pass through the fixing hole 13 to tighten the power cable, so that the shell 1 and the suppression device body 2 can be fixed on the power cable to prevent the shell 1 and the suppression device body 2 from moving along the length direction of the power cable.

[0033] The utility model is not limited to the above-mentioned embodiment, if the various changes or deformation of the utility model do not deviate from the spirit and scope of the utility model, if these changes and deformation belong to the right claim and equivalent technical scope of the utility model, then the utility model also intends to contain these changes and deformation.

Claims

1. A device for conveniently fixing on power transmission cable to suppress harmonic current, characterized in that: it comprises a cylindrical shell and a suppression device body matchedly installed in the shell, and the shell and the suppression device body are provided with coaxial installation holes penetrating through in axial direction; the shell comprises a first shell and a second shell, one end of which is movably connected, and the other end is detachably connected through a clamping structure; the suppression device body comprises an outer graphene layer, an intermediate rare earth alloy layer and an inner aluminum-magnesium alloy layer.

2. The device for conveniently fixing on power transmission cable to suppress harmonic current according to claim 1, characterized in that: the first shell is provided with clamping seats on the upper and lower sides respectively, and each clamping seat is provided with a fixing hole for passing a band or a rope to achieve auxiliary fixing of the shell on the power transmission cable.

3. The device for conveniently fixing on power transmission cable to suppress harmonic current according to claim 1, characterized in that: one end of the first shell and the second shell is movably connected through a pivot.

4. The device for conveniently fixing on power transmission cable to suppress harmonic current according to claim 3, characterized in that: the upper and lower sides of the first shell away from the pivot are respectively provided with connecting arms extending towards the second shell, and each connecting arm is provided with a clamping groove.

5. The device for conveniently fixing on power transmission cable to suppress harmonic current according to claim 4, characterized in that: the upper and lower sides of one end of the second shell are respectively provided with clamping platforms matched with the clamping grooves.

6. The device for conveniently fixing on power transmission cable to suppress harmonic current according to claim 5, characterized in that: one end of the clamping platform towards the connecting arm has a guide inclined surface. ​ ​ ​ ​ ​ ​

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