CN218998027U

CN218998027U - External filter of converter

Info

Publication number: CN218998027U
Application number: CN202223361511.5U
Authority: CN
Inventors: 高磊
Original assignee: TAIAN TECHNOLOGY (WUXI) CO LTD
Current assignee: TAIAN TECHNOLOGY (WUXI) CO LTD
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-05-09
Anticipated expiration: 2032-12-14

Abstract

The utility model discloses an external filter of a frequency converter, which comprises a filter body and the frequency converter body, wherein the filter body comprises an upper cover, an upper hole, a lower cover, a lower hole, a PCB (printed circuit board), a panel type wiring terminal and screw columns, the upper hole is formed in four corners of the top end surface of the upper cover, the panel type wiring terminal is arranged on the bottom end surface of the lower cover, and the frequency converter body is fixedly connected with the filter body through four screws. According to the utility model, the frequency converter body is fixed above the filter body through four screws sequentially penetrating through the fixing holes, the upper holes and the lower holes, the filter is not required to be locked by the screws alone, the assembly steps are simplified, the time is saved, the panel-type wiring terminal is adopted at the input end of the filter body, the cost is lower, and meanwhile, the panel-type wiring terminal is connected with the lower cover through two screw posts, so that the whole filter is thinner and smaller in volume.

Description

External filter of converter

Technical Field

The utility model relates to the technical field of filters, in particular to an external filter of a frequency converter.

Background

The frequency converter filter is mainly a passive device formed by inductance, capacitance, resistance, and the like. The electromagnetic noise on the power grid can be prevented from entering the equipment through the power supply, and the pollution of the electromagnetic noise of the equipment to the power grid can be prevented, so that the electromagnetic noise-free power grid power supply device is an effective tool for inhibiting the conduction interference.

The external filter can be detached from the frequency converter and externally connected with a filter mechanism according to the use conditions. The external filter on the current market needs to be locked by a screw alone, the assembly steps are complicated, the traditional through-wall type wiring terminal block is mostly adopted, the cost is high, and meanwhile, the size of the whole filter is large, so that the filter needs to be further improved.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the external filter of the frequency converter, wherein the frequency converter body is fixed above the filter body through four screws sequentially penetrating through the fixing holes, the upper holes and the lower holes, the filter is not required to be locked by the screws alone, the assembly step is simplified, the time is saved, the panel type wiring terminal is adopted at the input end of the filter body, and compared with the traditional through-wall type wiring terminal table, the cost is lower, and meanwhile, the panel type wiring terminal is connected with the lower cover through two screw columns, so that the whole filter is thinner and the volume is smaller.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an external wave filter of converter, includes wave filter body and frequency converter body, the wave filter body includes upper cover, upper hole, lower cover, lower hole, PCB board, panel binding post and screw post, four corners of the top face of upper cover have all been seted up the upper hole, the below of upper cover is connected with the lower cover, the both sides up end of lower cover corresponds the position department of upper hole has been seted up down the hole, the upper cover with install between the lower cover the PCB board, install on the bottom terminal surface of lower cover panel binding post, four corners in the bottom of frequency converter body all are provided with the fixed orifices, the frequency converter body with the wave filter body passes through four screw fixed connection, the screw runs through in proper order the fixed orifices the upper hole with the lower hole.

Further, the panel-type wiring terminal is connected with the lower cover through two screw posts.

Further, the output end of the filter body is connected with the input end of the frequency converter body through an electric wire.

Furthermore, clamping grooves are formed in the front and rear side bottom end faces of the lower cover, and clamping strips are arranged at positions, corresponding to the clamping grooves, of the bottom of the upper cover.

The beneficial effects of the utility model are as follows:

1. firstly, the frequency converter body is fixed above the filter body by sequentially penetrating through the fixing holes, the upper holes and the lower holes through four screws, and the upper cover and the lower cover are not required to be locked by the screws alone, so that the assembly steps are simplified, and the time is saved;

2. and secondly, the input end of the filter body is provided with a panel type wiring terminal, compared with a traditional through-wall type wiring terminal block, the cost is lower, and meanwhile, the panel type wiring terminal is connected with the lower cover through two screw posts, so that the whole filter is thinner and smaller in volume.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the mounting structure of the present utility model;

fig. 2 is a schematic view of the internal structure of the present utility model.

Reference numerals in the drawings: 1. a filter body; 11. an upper cover; 12. an upper hole; 13. a lower cover; 14. a lower hole; 15. a PCB board; 16. panel-type wiring terminals; 17. a screw post; 2. a transducer body; 3. a fixing hole; 4. a screw; 5. an electric wire; 6. a clamping groove; 7. and (5) clamping the strip.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying positive importance.

Example 1

The utility model provides an external wave filter of converter that fig. 1-2 shows, including wave filter body 1 and frequency converter body 2, wave filter body 1 includes upper cover 11, upper hole 12, lower cover 13, lower hole 14, PCB board 15, panel binding post 16 and screw post 17, upper hole 12 has all been seted up to four corners of the top face of upper cover 11, the below of upper cover 11 is connected with lower cover 13, lower hole 14 has been seted up to the position department that the both sides top face of lower cover 13 corresponds upper hole 12, install PCB board 15 between upper cover 11 and the lower cover 13, install panel binding post 16 on the bottom face of lower cover 13, the bottom four corners of frequency converter body 2 all are provided with fixed orifices 3, frequency converter body 2 and wave filter body 1 pass through four screw 4 fixed connection, screw 4 runs through fixed orifices 3 in proper order, upper hole 12 and lower hole 14, first, the frequency converter body 2 is that pass through fixed orifices 3 in proper order, upper hole 12 and lower hole 14 are fixed in wave filter body 1 top, the position department of upper cover 11 has been seted up with lower hole 12, install PCB board 15 between lower cover 13, install the bottom plate binding post 16 on the bottom face of lower cover 13 installs face plate binding post 16 on the basis, the bottom face of lower cover 13, the whole time is more than the filter body is reduced, the whole filter body is compared with the filter body is 16, the step is more convenient, the filter body is more through the lower terminal is more convenient, the size is compared with the lower terminal 16, the lower terminal 17.

Example two

The output end of the filter body 1 is connected with the input end of the frequency converter body 2 through an electric wire 5, and the frequency converter is simple in structure and lower in cost.

Example III

The clamping grooves 6 are formed in the front and rear side bottom end faces of the lower cover 13, the clamping strips 7 are arranged at the positions, corresponding to the clamping grooves 6, of the bottom of the upper cover 11, the clamping strips 7 of the upper cover 11 are clamped in the clamping grooves 6 of the lower cover 13, and then the screws 4 are installed, so that the assembly firmness of the filter body 1 is improved.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides an external wave filter of converter, includes wave filter body (1) and converter body (2), its characterized in that: the filter body (1) comprises an upper cover (11), an upper hole (12), a lower cover (13), a lower hole (14), a PCB (15), a panel type wiring terminal (16) and a screw column (17), wherein four corners of the top end face of the upper cover (11) are respectively provided with the upper hole (12), the lower part of the upper cover (11) is connected with the lower cover (13), the top end faces of the two sides of the lower cover (13) correspond to the position of the upper hole (12) and are provided with the lower hole (14), the PCB (15) is arranged between the upper cover (11) and the lower cover (13), the panel type wiring terminal (16) is arranged on the bottom end face of the lower cover (13), the four corners of the bottom of the frequency converter body (2) are respectively provided with a fixing hole (3), the frequency converter body (2) and the filter body (1) are fixedly connected through four screws (4), and the screws (4) sequentially penetrate through the fixing holes (3) and the upper hole (12) and the lower hole (14).

2. The external filter of a frequency converter according to claim 1, wherein: the panel-type wiring terminal (16) is connected with the lower cover (13) through two screw posts (17).

3. The external filter of a frequency converter according to claim 1, wherein: the output end of the filter body (1) is connected with the input end of the frequency converter body (2) through an electric wire (5).

4. The external filter of a frequency converter according to claim 1, wherein: clamping grooves (6) are formed in the front and rear side bottom end faces of the lower cover (13), and clamping strips (7) are arranged at positions, corresponding to the clamping grooves (6), of the bottom of the upper cover (11).