Primary resonance elimination device with novel stable structure

Abstract

The utility model discloses a primary resonance elimination device with a novel stable structure, and belongs to the technical field of primary resonance elimination devices. Comprising a primary resonance eliminator main body, a fixed base, mounting support legs and bolts, the fixed base is arranged at the bottom of the primary resonance eliminator main body, a mounting top seat is arranged at the top of the primary resonance eliminator main body, a spacing groove is formed in the bottom of the fixed base, the mounting support legs are embedded in the spacing groove, and the bolts are arranged on the mounting support legs. And the two ends of the mounting supporting legs extend to the outer part of the spacing groove. The primary resonance elimination device solves the problem that in the prior art, installation supporting legs of a primary resonance elimination device are double-lug type installation supporting legs, and stability is ordinary, the bottom of the primary resonance elimination device body can be fixed through the integrated installation supporting legs at the bottom, stability and firmness are achieved, and if only one side of the primary resonance elimination device body needs to be installed, installation is convenient. And the other end of the mounting support leg does not protrude, so that the use is flexible.

Description

Technical Field

[0001] The utility model relates to the technical field of primary harmonic elimination devices, in particular to a primary harmonic elimination device with a novel stable structure. Background Technique

[0002] A harmonic eliminator is a damping device for protecting the primary side of a voltage transformer, used to eliminate harmonics in the power grid. It not only plays the role of damping and current limiting, but also can effectively limit the ferromagnetic resonance of the voltage transformer, and is widely used in power engineering.

[0003] However, there are still some deficiencies in the existing primary harmonic eliminators during use. For example, the installation feet of the primary harmonic eliminator adopt double-ear type installation feet, with general stability. Moreover, the internal insulation structure of the device uses ceramic material, which is easily broken and damaged when impacted during transportation, reducing the service life of the primary harmonic elimination device. Content of the Utility Model

[0004] The purpose of the utility model is to provide a primary harmonic elimination device with a novel stable structure, which can fix the bottom of the primary harmonic eliminator main body through the integrated installation feet at the bottom, with stable and reliable fixation. And if the primary harmonic eliminator main body only needs to be installed on one side, the other end of the installation feet can not protrude, making it flexible to use; the insulation part is made of fiber rod material as a whole. The fiber rod is convenient to process and can be processed into different lengths according to needs. It is not easily broken and damaged when impacted during transportation, with high applicability, thus solving the problems in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A primary harmonic elimination device with a novel stable structure, including a primary harmonic eliminator main body, a fixed base, installation feet and bolts. A fixed base is arranged at the bottom of the primary harmonic eliminator main body, an installation top seat is arranged at the top of the primary harmonic eliminator main body. An air separation groove is opened at the bottom of the fixed base, and the installation feet are embedded in the air separation groove, and both ends of the installation feet extend to the outside of the air separation groove.

[0006] Preferably, threaded holes are arranged inside the fixed base.

[0007] Preferably, a fixed installation hole and a cross-head hole are respectively opened inside the installation feet, and one end of the bolt passes through the cross-head hole and is fixedly connected with the threaded hole.

[0008] Preferably, an insulation part is arranged inside the primary harmonic eliminator main body, and the insulation part is connected with the fixed base.

[0009] Preferably, the insulation part is made of fiber rod material as a whole.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. A primary harmonic elimination device with a novel stable structure according to the present utility model. By providing an air separation groove and an integral mounting foot, the device can fix the bottom of the primary harmonic eliminator main body through the mounting foot at the bottom. The structure is simple, and compared with the existing technology using double-ear mounting feet, it is more stable and reliable. Moreover, if the primary harmonic eliminator main body only needs to be mounted on one side, the other end of the integral mounting foot does not need to protrude, making it flexible to use.

[0012] 2. A primary harmonic elimination device with a novel stable structure according to the present utility model. The insulating member inside the device is made of fiber rod material. The fiber rod is convenient to process and can be processed into different lengths according to needs. Compared with the insulating member made of ceramic material in the existing technology, it is not easily broken or damaged when encountering impact during transportation, improving the service life of the device and having high applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the split of the primary harmonic eliminator base of the prior art;

[0014] Figure 2 Schematic diagram of the structure of the insulating member of the prior art;

[0015] Figure 3 Schematic diagram of the split of the fixed base of the present utility model;

[0016] Figure 4 Schematic diagram of the structure of the insulating member of the present utility model.

[0017] In the figure: 1. Primary harmonic eliminator main body; 2. Fixed base; 3. Mounting foot; 4. Bolt; 5. Insulating member; 201. Air separation groove; 202. Threaded hole; 301. Fixed mounting hole; 302. Cross head hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present utility model.

[0019] To solve the technical problems in the prior art, please refer to Figures 1-4 , and the following technical solutions are provided:

[0020] In this embodiment, a primary harmonic eliminator with a novel stable structure includes a primary harmonic eliminator main body 1, a fixed base 2, mounting feet 3, and bolts 4. The bottom of the primary harmonic eliminator main body 1 is provided with a fixed base 2, and the top of the primary harmonic eliminator main body 1 is provided with a mounting top seat. An air separation groove 201 is opened at the bottom of the fixed base 2, and the mounting feet 3 are embedded in the air separation groove 201, and both ends of the mounting feet 3 extend to the outside of the air separation groove 201. During use, if the primary harmonic eliminator main body 1 only needs to be installed on one side, the other end of the mounting feet 3 does not need to protrude from the air separation groove 201, and the use is flexible.

[0021] Threaded holes 202 are provided inside the fixed base 2. Fixed mounting holes 301 and cross-head holes 302 are respectively opened inside the mounting feet 3. One end of the bolt 4 passes through the cross-head hole 302 and is fixedly connected to the threaded hole 202. The mounting feet 3 are integral mounting feet 3. The mounting feet 3 are fixedly connected to the fixed base 2 through bolts 4, which is convenient for fixing the bottom of the primary harmonic eliminator main body 1 and has good stability.

[0022] In this embodiment, an insulating member 5 is provided inside the primary harmonic eliminator main body 1, and the insulating member 5 is connected to the fixed base 2. The insulating member 5 is made of fiber rod material as a whole. The fiber rod is convenient to process and can be processed into different lengths according to needs. It is not easy to be broken or damaged when encountering impacts during transportation, and has high applicability.

[0023] Working principle: When in use, the mounting feet 3 are fixed in the air separation groove 201 of the fixed base 2 by bolts 4, and then the fixed base 2 is horizontally placed at the use position. Fasteners are used to connect to the fixed mounting holes 301 on the mounting feet 3 to fixedly install the bottom of the primary harmonic eliminator main body 1, realizing the stable installation of the primary harmonic eliminator main body 1. If the primary harmonic eliminator main body 1 only needs to be installed on one side, the position of the mounting feet 3 can be moved so that the other end of the mounting feet 3 does not protrude.

[0024] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model.

Claims

1. A primary harmonic elimination device with a novel stable structure, comprising a primary harmonic elimination body (1), a fixing base (2), a mounting foot (3) and a bolt (4), characterized in that: A fixed base (2) is provided at the bottom of the primary detuning device body (1), and a mounting top seat is provided at the top of the primary detuning device body (1). A spacer groove (201) is provided at the bottom of the fixed base (2), and mounting legs (3) are embedded inside the spacer groove (201), and both ends of the mounting legs (3) extend to the outside of the spacer groove (201).

2. The first harmonic elimination device with a novel stable structure according to claim 1 is characterized in that: A threaded hole (202) is provided inside the fixed base (2).

3. The primary harmonic elimination device with a novel stable structure according to claim 1 is characterized in that: The interior of the mounting foot (3) is respectively provided with a fixed mounting hole (301) and a cross head hole (302), and one end of the bolt (4) passes through the cross head hole (302) and is fixedly connected to the threaded hole (202).

4. The first harmonic elimination device with a novel stable structure according to claim 1 is characterized in that: An insulating member (5) is provided inside the primary harmonic eliminator body (1), and the insulating member (5) is connected to the fixed base (2).

5. The primary harmonic elimination device with a novel stable structure according to claim 4 is characterized in that: The insulating member (5) is entirely made of fiber rod material.

Images