CN220475748U

CN220475748U - Filter structure

Info

Publication number: CN220475748U
Application number: CN202322162992.5U
Authority: CN
Inventors: 李西安; 胡勇
Original assignee: Cangzhou Xiangte Electromechanical Equipment Co ltd
Current assignee: Cangzhou Xiangte Electromechanical Equipment Co ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-02-09
Anticipated expiration: 2033-08-11

Abstract

The utility model discloses a filter structure, in particular to the technical field of filters, which comprises a filter main body, wherein a connecting component is arranged on the filter main body, the connecting component comprises a first outer protective cover which is arranged at the bottom of the filter main body and used for protection, and a capacitor which is detachably connected with the first outer protective cover is arranged in the first outer protective cover. The utility model has simple overall design and reasonable structure by arranging the connecting component, and the resonant circuit formed by connecting the choke coil and one capacitor in series on the filter main body is used by corresponding cooperation of each structure, and has extremely small impedance to harmonic current after tuning, and the tuned resonant circuit is used for precisely eliminating main harmonic components in a power distribution network so as to prevent resonance.

Description

Filter structure

Technical Field

The utility model relates to the technical field of filters, in particular to a filter structure.

Background

The power filter is a filter circuit composed of a capacitor, an inductor and a resistor. The filter can effectively filter the frequency points of the specific frequency or the frequencies outside the frequency points in the power line to obtain a power signal of the specific frequency or eliminate the power signal of the specific frequency;

the problem of harmonic pollution of power electronic devices and other harmonic sources has two basic ideas: one is to install a harmonic suppression and filtering device, which is applicable to various harmonic sources; the other is to modify the power electronic device itself to make it generate no harmonic wave and make the power factor reach above 0.96, but the traditional method of installing harmonic suppression device for the power electronic device as the main harmonic source is to use passive tuning filter (LC for short), which can suppress harmonic wave and compensate human power, and has simple structure and been widely used.

The utility model patent with the patent application number of CN202120229466.4 discloses a filter structure, which comprises a base plate, wherein a filter body is arranged on the upper side of the base plate, limiting blocks which are attached to each other are respectively arranged on the outer walls of the periphery of the filter body, the limiting blocks are fixed on the base plate, the upper ends of the limiting blocks are hinged with L-shaped fixing rods, a plurality of heat conducting gaskets are respectively arranged on the periphery of the filter body and the outer walls of the upper side of the filter body, and the heat conducting gaskets are connected with radiating fins;

when the structure is used, the filter body can be conveniently and fast fixed on the base plate through the special structure of the L-shaped fixing rod part, namely, the filter body can be fixed by screwing the screw by hand, and further, the filter body can be conveniently and fast installed and detached; the filter body is provided with radiating structures such as radiating fins and the like, so that a good radiating effect can be achieved; the protection casing can play fine guard action to the wave filter body, but this structure does not have elasticity when using, and is impaired easily when dropping, causes the resonance circuit of coil and capacitor series connection to make up to appear contacting failure's condition.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, the present utility model provides a filter structure, which aims to solve the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the filter structure comprises a filter main body, wherein a connecting component is arranged on the filter main body;

the connecting assembly comprises a first outer protective cover arranged at the bottom of the filter main body and used for protecting, a capacitor detachably connected with the first outer protective cover is arranged in the first outer protective cover, and a rubber cushion layer is arranged between the first outer protective cover and the capacitor;

the top of the capacitor is provided with a heat dissipation part, the top of the heat dissipation part is provided with a first elastic support part for protection, the top of the first elastic support part is provided with an electrode column, the top of the electrode column is provided with a second elastic support part, the middle part of the second elastic support part is provided with a centering rod, the outer side of the top of the electrode column is provided with a choke coil, both sides of the surface of the filter main body are provided with frame openings, and each frame opening is respectively provided with an electrode lug arranged on the electrode column;

it can be seen that, in the above technical scheme, the resonant circuit formed by the series connection of the choke coil and the capacitor on the filter main body has extremely small impedance to harmonic current after tuning, the tuned resonant circuit is used for precisely removing main harmonic components in the power distribution network so as to prevent resonance, meanwhile, when the filter main body accidentally drops, the first outer protective cover protects the capacitor, and the rubber cushion layer between the first outer protective cover and the capacitor absorbs energy to impact force generated when the filter main body drops, so as to avoid damage to the capacitor, and meanwhile, the first elastic support piece buffers the capacitor, so that the capacitor can perform proper displacement in the filter main body, the capacitor is prevented from being damaged, and the second elastic support piece can perform the function of elastic support to the electrode column, so as to avoid the phenomenon of disconnection between the electrode column, the choke coil and the capacitor.

Optionally, in one possible implementation manner, the connection assembly further includes a plurality of heat dissipation fins which are circumferentially distributed on the outer side of the heat dissipation piece along the axis point of the heat dissipation piece, the outer sides of a plurality of heat dissipation fins are sleeved with insulating rings, the insulating rings are installed on the filter main body, the outer sides of the centering rod and the second elastic support piece are covered with second outer protection covers for protection, the bottom of the second outer protection covers is installed on the top of the filter main body, and limiting hoops for limiting the first outer protection covers are arranged at the bottom of the filter main body and the top of the first outer protection covers, and are in threaded connection with the filter main body;

it can be seen that in the above technical scheme, through the setting of radiating fin and radiating piece, be convenient for dispel the heat to the condenser, and the second outer protection casing then can play the function of protection to centering rod and second elastic support piece, avoids the structure to damage, and simultaneously through the setting of spacing lock, install the stability of carrying out spacingly in filter main part bottom to first outer protection casing, ensure first outer protection casing installation.

The utility model has the technical effects and advantages that:

the filter is characterized in that the filter body is provided with a connecting component, the whole design is simple, the structure is reasonable, a resonant circuit formed by connecting a choke coil and a capacitor in series on the filter body is used by corresponding cooperation of the structures, harmonic current is tuned, the harmonic current has extremely small impedance, and the tuned resonant circuit is used for precisely eliminating main harmonic components in a power distribution network so as to prevent resonance;

the impact force generated when falling is absorbed firstly through the rubber cushion layer between the first outer protective cover and the capacitor, the capacitor is prevented from being damaged, the second elastic support piece can play a role in elastic support on the electrode column, and the phenomenon of broken contact among the electrode column, the choke coil and the capacitor is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the present disclosure, the drawings that need to be used in some embodiments of the present disclosure will be briefly described below, and it is apparent that the drawings in the following description are only drawings of some embodiments of the present disclosure, and other drawings may be obtained according to these drawings to those of ordinary skill in the art. Furthermore, the drawings in the following description may be regarded as schematic diagrams, not limiting the actual size of the products, the actual flow of the methods, the actual timing of the signals, etc. according to the embodiments of the present disclosure.

Fig. 1 is a front view of the overall structure of the present utility model.

Fig. 2 is a cross-sectional view of the overall structure of the present utility model.

Fig. 3 is a front view of the first outer shield, the filter body and the second outer shield of the present utility model.

Fig. 4 is a front view of the connection assembly of the present utility model.

The reference numerals are: 1. a filter body; 2. a first outer shield; 3. a capacitor; 4. a heat sink; 5. a first elastic support; 6. an electrode column; 7. a choke coil; 8. a centering rod; 9. a second elastic support; 10. a heat radiation fin; 11. an insulating ring; 12. a second outer shield; 13. an electrode ear; 14. and (5) limiting and tightening.

Detailed Description

The present utility model will be described in further detail below with reference to the drawings and preferred embodiments, so that those skilled in the art can better understand the technical solutions of the present utility model. All other embodiments, based on the embodiments of the utility model, which would be apparent to one of ordinary skill in the art without making any inventive effort are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the utility model.

In addition, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

Example 1

In the embodiment, as shown in fig. 1-4, a filter structure is provided by connecting components provided on a filter main body 1, and the specific structure of the components is as follows;

the connecting assembly comprises a first outer protective cover 2 which is arranged at the bottom of the filter main body 1 and used for protection, a capacitor 3 which is detachably connected with the first outer protective cover 2 is arranged in the first outer protective cover 2, and a rubber cushion layer is arranged between the first outer protective cover 2 and the capacitor 3;

the top of the capacitor 3 is provided with a heat dissipation piece 4, the top of the heat dissipation piece 4 is provided with a first elastic support piece 5 for protection, the top of the first elastic support piece 5 is provided with an electrode column 6, the top of the electrode column 6 is provided with a second elastic support piece 9, the middle part of the second elastic support piece 9 is provided with a centering rod 8, and the outer side of the top of the electrode column 6 is provided with a choke coil 7;

frame openings are formed in two sides of the surface of the filter main body 1, and electrode lugs 13 mounted on the electrode columns 6 are respectively arranged in the frame openings;

according to the above structure, when in use, a worker installs a wire on the filter body 1 through the electrode lugs 13, when current is transmitted through the filter body 1, a resonant circuit formed by the choke coil 7 and one capacitor 3 in series on the filter body 1, after tuning, has extremely small impedance to harmonic current, the tuned resonant circuit is used for precisely eliminating main harmonic components in a power distribution network so as to prevent resonance, meanwhile, when the filter body 1 accidentally drops, the first outer protective cover 2 protects the capacitor 3, and a rubber cushion layer between the first outer protective cover 2 and the capacitor 3 absorbs energy to the impact force generated when dropping first, so that the capacitor 3 is prevented from being damaged, and meanwhile, the capacitor 3 can be properly displaced in the filter body 1 by the first elastic support 5 to avoid the capacitor 3 from being damaged, and the second elastic support 9 can play a role of elastic support to the electrode post 6 to avoid the phenomenon that the electrode post 6, the choke coil 7 and the capacitor 3 are broken.

Example 2

As shown in fig. 1-4, the connecting assembly further comprises a plurality of radiating fins 10 which are circumferentially distributed on the outer side of the radiating piece 4 along the axis point of the radiating piece 4, insulating rings 11 are sleeved on the outer sides of the radiating fins 10, the insulating rings 11 are installed on the filter main body 1, second outer protection covers 12 for protection are covered on the outer sides of the centering rod 8 and the second elastic supporting piece 9, the bottom of the second outer protection covers 12 is installed on the top of the filter main body 1, limiting hoops 14 for limiting the first outer protection covers 2 are arranged on the bottom of the filter main body 1 and on the top of the first outer protection covers 2, and the limiting hoops 14 are in threaded connection with the filter main body 1.

According to the structure, when the filter is used, the heat dissipation fin 10 and the heat dissipation piece 4 are arranged, the capacitor 3 is conveniently dissipated, the second outer protective cover 12 can protect the centering rod 8 and the second elastic support piece 9, structural damage is avoided, meanwhile, the first outer protective cover 2 is arranged at the bottom of the filter main body 1 to be limited through the limiting tightening ring 14, and the installation stability of the first outer protective cover 2 is ensured.

In order to prevent resonance, the first outer protective cover 2 protects the capacitor 3, and the rubber cushion layer between the first outer protective cover 2 and the capacitor 3 absorbs energy of impact force generated when falling first, and at the same time, the first elastic support 5 buffers the capacitor 3, so that the capacitor 3 can perform proper displacement in the filter main body 1, damage to the capacitor 3 is avoided, the second elastic support 9 can perform elastic support function on the electrode column 6, break contact phenomenon between the electrode column 6, the choke coil 7 and the capacitor 3 is avoided, the heat dissipation fins 10 and the heat dissipation piece 4 are arranged, the capacitor 3 is conveniently dissipated, the second outer protective cover 12 can perform protective function on the first outer protective cover 8 and the second elastic support 9, structural damage is avoided, and meanwhile, the first outer protective cover 2 is installed at the bottom of the first outer protective cover 2 through the limit device 14, and the first outer protective cover 2 is installed at the bottom of the filter main body 1.

The foregoing is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the utility model, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.

Claims

1. Filter structure comprising a filter body (1), characterized in that: the filter main body (1) is provided with a connecting component;

the connecting assembly comprises a first outer protective cover (2) arranged at the bottom of the filter main body (1) and used for protection, a capacitor (3) detachably connected with the first outer protective cover (2) is arranged in the first outer protective cover (2), and a rubber cushion layer is arranged between the first outer protective cover (2) and the capacitor (3);

the top of condenser (3) is provided with radiating piece (4), the top of radiating piece (4) is provided with first elastic support piece (5) that are used for the protection, the top of first elastic support piece (5) is provided with electrode post (6), the top of electrode post (6) is provided with second elastic support piece (9), the middle part of second elastic support piece (9) is provided with centering rod (8), the top outside of electrode post (6) is provided with choke coil (7).

2. A filter structure according to claim 1, characterized in that: the connecting assembly further comprises a plurality of radiating fins (10) which are circumferentially distributed on the outer side of the radiating piece (4) along the axis point of the radiating piece (4) and used for radiating heat.

3. A filter structure according to claim 2, characterized in that: insulating rings (11) are sleeved on the outer sides of the radiating fins (10), and the insulating rings (11) are arranged on the filter main body (1).

4. A filter structure according to claim 1, characterized in that: the outer sides of the centering rod (8) and the second elastic support piece (9) are covered with a second outer protective cover (12) for protection, and the bottom of the second outer protective cover (12) is arranged at the top of the filter main body (1).

5. A filter structure according to claim 1, characterized in that: frame openings are formed in two sides of the surface of the filter main body (1), and electrode lugs (13) mounted on the electrode columns (6) are respectively arranged in the frame openings.

6. A filter structure according to claim 1, characterized in that: the filter is characterized in that a limiting clamp (14) used for limiting the first outer protective cover (2) is arranged at the bottom of the filter body (1) and positioned at the top of the first outer protective cover (2), and the limiting clamp (14) is in threaded connection with the filter body (1).