CN210518089U

CN210518089U - A installation component and converter for converter

Info

Publication number: CN210518089U
Application number: CN201921326883.XU
Authority: CN
Inventors: 潮洋; 胡松涛
Original assignee: Zhejiang Holip Electronic Technology Co Ltd
Current assignee: Zhejiang Holip Electronic Technology Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-05-12
Anticipated expiration: 2029-08-15

Abstract

The utility model discloses a mounting assembly, converter for converter, this mounting assembly include the base plate, the base plate is suitable for installation electrolytic capacitor, be formed with at least one outstanding connecting portion on the base plate integratively, every connecting portion are followed with one side of base plate and along keeping away from the direction of base plate extends, connecting portion are suitable for the connection the circuit board of converter. The mounting assembly is formed by integrating a substrate suitable for mounting an electrolytic capacitor and a connecting part suitable for connecting a circuit board, thereby saving the assembly time, and having simple assembly and low cost.

Description

A installation component and converter for converter

Technical Field

The embodiment of the utility model provides a relate to converter technical field, especially relate to an installation component for converter to and the converter including this installation component.

Background

The frequency converter is an electric control device which applies a frequency conversion technology and a microelectronic technology and controls an alternating current motor by changing the frequency mode of a working power supply of the motor. The frequency converter mainly comprises a rectifying unit, a direct current unit and an inversion unit. With the continuous improvement of the industrial automation degree, the special requirements of various production equipment on power supply are also continuously increased, and the frequency converter can adjust the voltage and the frequency of an output power supply and provide the required power supply voltage according to the actual requirements of the motor so as to save energy and regulate speed, so that the frequency converter is more and more emphasized in the production field.

Each part of converter needs a plurality of parts to hold, fix and seal etc. usually in the assembly process, for example, needs the part of plastics or panel beating material to hold circuit board or power strip, needs the staple bolt of plastics or panel beating material to fix the electric capacity, uses the rubber pad to seal etc.. The use of multiple parts results in complex and long assembly times and high costs.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to solve at least one of the above problems and disadvantages in the prior art.

According to the utility model discloses an embodiment provides a mounting assembly for converter, including the base plate, the base plate is suitable for installation electrolytic capacitor, be formed with at least one outstanding connecting portion on the base plate integratively, every connecting portion follow the base plate with one side and along keeping away from the direction of base plate extends, connecting portion are suitable for the connection the circuit board of converter.

According to the utility model discloses a mounting assembly of an embodiment still includes the follow the edge of base plate and along keeping away from the frame that the direction of base plate extends, the frame with connecting portion are located same one side of base plate, just the frame is at the perpendicular to highly being greater than of the orientation of base plate connecting portion are at the perpendicular to the ascending height of orientation of base plate with the sum of the thickness of circuit board.

According to the utility model discloses a mounting assembly of an embodiment, every connecting portion all are formed with the mounting hole, with will the circuit board is installed keeping away from of connecting portion the one end of base plate.

According to the utility model discloses a mounting assembly of embodiment, it is a plurality of connecting portion are followed the circumference interval distribution of base plate.

According to the utility model discloses an installation component of embodiment, still be formed with at least one outstanding ground connection portion integratively on the base plate, ground connection portion with connecting portion are located same one side of base plate, ground connection portion is formed with the through-hole, supply with ground connection is worn out to the ground connection piece that the circuit board is connected.

According to the utility model discloses a mounting assembly of embodiment, be formed with at least one electric capacity mounting hole on the base plate, be provided with one in every electric capacity mounting hole and be suitable for the maintenance electrolytic capacitor's retaining sleeve, the retaining sleeve have first end and with the opposite second end of first end, first end with the second end is located respectively the double-phase offside of base plate, first end is formed with a plurality of axial cantilevers, every the axial cantilever supports and leans on electrolytic capacitor's the outer periphery, it is right electrolytic capacitor fixes.

According to the utility model discloses a mounting assembly of embodiment, every the free end of axial cantilever forms to follow the inboard surface orientation of retaining sleeve electrolytic capacitor tightens up to support and leans on electrolytic capacitor's the outer periphery.

According to the utility model discloses a mounting assembly of embodiment, it is a plurality of the axial cantilever is followed the circumference of retaining sleeve is equidistant.

According to the utility model discloses a mounting assembly of an embodiment, the second end of retaining collar supports and leans on the circuit board.

According to the utility model discloses a mounting assembly of an embodiment, the retaining sleeve with the base plate is made integratively.

According to the utility model discloses a mounting assembly of embodiment, mounting assembly adopts plastics to make.

According to another embodiment of the present invention, there is also provided a frequency converter including the mounting assembly as described above.

According to the utility model discloses above-mentioned various embodiments's converter and installation component thereof, through will be suitable for the base plate of installation electrolytic capacitor and the connecting portion that is suitable for the connecting wire board form integratively to save the equipment time, and assemble simple, with low costs. In addition, a plurality of axial cantilevers are formed at the first end of the retaining sleeve of the capacitor mounting hole in the substrate, each axial cantilever abuts against the outer circumferential surface of the electrolytic capacitor to fix the electrolytic capacitor and absorb vibration of the electrolytic capacitor in the using process, so that the purpose of preventing vibration is achieved, the second end of the retaining sleeve abuts against a circuit board of the frequency converter, so that the second end of the retaining sleeve is tightly attached to the circuit board, and dust is prevented from entering the inside of the frequency converter from the electrolytic capacitor side. Therefore, the integrated arrangement can simultaneously achieve the purposes of vibration prevention and dust prevention, the manufacturing cost is reduced, and the manufacturing process is simplified.

Drawings

These and/or other aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the preferred embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic front view showing a mounting assembly adapted for a frequency converter according to an exemplary embodiment of the present invention, in which an electrolytic capacitor and a wiring board are schematically mounted to the mounting assembly;

FIG. 2 is a top schematic view of the mounting assembly shown in FIG. 1;

FIG. 3 is a side schematic view of the mounting assembly shown in FIG. 2;

FIG. 4 is another side schematic view of the mounting assembly shown in FIG. 2;

FIG. 5 is a cross-sectional schematic view of the mounting assembly shown in FIG. 2;

FIG. 6 is a schematic front view of the mounting assembly of FIG. 1 without the electrolytic capacitor and the wiring board mounted thereto;

FIG. 7 is a top schematic view of the mounting assembly shown in FIG. 6;

FIG. 8 is a side schematic view of the mounting assembly shown in FIG. 6;

FIG. 9 is another side schematic view of the mounting assembly shown in FIG. 6; and

fig. 10 is a schematic view of the connection of the base plate and retaining sleeve of the mounting assembly shown in fig. 6.

Detailed Description

While the present invention will be fully described with reference to the accompanying drawings, which contain preferred embodiments of the invention, it is to be understood that those skilled in the art can, prior to this description, modify the embodiments described herein while obtaining the technical effects of the invention. Therefore, it should be understood that the foregoing description is a broad disclosure directed to persons of ordinary skill in the art, and is not intended to limit the exemplary embodiments of the invention described herein.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.

According to the present general inventive concept, there is provided a mounting assembly adapted to a frequency converter, including a base plate adapted to mount an electrolytic capacitor, at least one protruding connection portion integrally formed on the base plate, each of the connection portions extending from a same side of the base plate and in a direction away from the base plate, the connection portion adapted to connect a circuit board of the frequency converter.

According to another general inventive concept, there is provided a frequency converter including the mounting assembly as described above.

Fig. 1 is a schematic front view showing a mounting assembly adapted for a frequency converter according to an exemplary embodiment of the present invention, in which an electrolytic capacitor and a wiring board are schematically mounted to the mounting assembly; FIG. 2 is a top schematic view of the mounting assembly shown in FIG. 1; FIG. 3 is a side schematic view of the mounting assembly shown in FIG. 2; FIG. 4 is another side schematic view of the mounting assembly shown in FIG. 2; FIG. 5 is a cross-sectional schematic view of the mounting assembly shown in FIG. 2; FIG. 6 is a schematic front view of the mounting assembly of FIG. 1 without the electrolytic capacitor and the wiring board mounted thereto; FIG. 7 is a top schematic view of the mounting assembly shown in FIG. 6; FIG. 8 is a side schematic view of the mounting assembly shown in FIG. 6; FIG. 9 is another side schematic view of the mounting assembly shown in FIG. 6; and FIG. 10 is a schematic view of the connection of the base plate and retaining sleeve of the mounting assembly shown in FIG. 6.

As shown in fig. 1 to 10, in an exemplary embodiment, the mounting assembly 100 includes a substantially flat substrate 10, the substrate 10 being adapted to mount an electrolytic capacitor 200, at least one protruding connecting portion 40 being integrally formed on the substrate 10, each connecting portion 40 extending from the same side of the substrate 10 and in a direction away from the substrate 10, the connecting portion 40 being adapted to connect to a circuit board 300 of a frequency converter, such as a Printed Circuit (PCB) board, on which various functional circuits and components of the frequency converter are disposed, such as terminals 301, which may be disposed on the circuit board 300, and a rectifying unit, a transformer, an inverter (not shown), and the like. In this embodiment, the height of the connection portion 40 in the direction perpendicular to the substrate 10 is uniform so that the assembled wiring board 300 is parallel to the substrate 10 and spaced apart from the substrate 10 by a certain distance.

Although in this embodiment, the connecting portion 40 extends in a direction perpendicular to the substrate 10, it should be noted that, in other embodiments of the present invention, the connecting portion 40 may also extend in a direction not perpendicular to the substrate 10, for example, at an angle to the substrate 10.

As shown in fig. 1, 2 to 6, 8 and 9, in an exemplary embodiment, the mounting assembly 100 further includes a frame 30 extending from an edge of the substrate 10 and along a direction away from the substrate 10, the frame 30 and the connecting portion 40 are located on the same side of the substrate 10, and a height of the frame 30 in a direction perpendicular to the substrate 10 is greater than a sum of a height of the connecting portion 40 in a direction perpendicular to the substrate 10 and a thickness of the circuit board 300, so that the circuit board 300 is located inside the frame 30 after being mounted.

As shown in fig. 2 and 7, in an exemplary embodiment, each connecting portion 40 is formed with a mounting hole (e.g., a blind threaded hole) for mounting the circuit board 300 on an end of the connecting portion 40 away from the substrate 10 by a fastener (e.g., a screw or the like) 50. In this embodiment, a plurality of connecting portions 40 are spaced along the circumference of the base plate 10, however, it should be understood by those skilled in the art that in other embodiments of the present invention, the connecting portions 40 may be arranged in other manners, and the number of the connecting portions 40 is not limited to the number shown in this embodiment, for example, one connecting portion located in the middle of the base plate 10 may be used.

As shown in fig. 2, 5 and 7, in an exemplary embodiment, at least one protruding grounding portion 60 is further integrally formed on the substrate 10, the grounding portion 60 and the connecting portion 40 are located on the same side of the substrate 10, and each grounding portion 60 is formed with a through hole for the grounding member 70 connected to the circuit board 300 to pass through to ground the circuit board 300.

As shown in fig. 1 to 5, in an exemplary embodiment, two capacitor mounting holes 11 are formed on a substrate 10, a holding sleeve 20 adapted to hold an electrolytic capacitor 200 is disposed in each capacitor mounting hole 11, an axis of each holding sleeve 20 is perpendicular to the substrate 10, the holding sleeve 20 has a first end 21 and a second end 22 opposite to the first end 21 in an axial direction of the holding sleeve 20, the first end 21 and the second end 22 respectively protrude from two opposite sides of the substrate 10, that is, the first end 21 and the second end 22 are respectively located at two opposite sides of the substrate 10, the first end 21 is formed with a plurality of axial cantilevers 21A, each axial cantilever 21A abuts against an outer circumferential surface of the electrolytic capacitor 200, so that the electrolytic capacitor 200 is firmly fixed by the plurality of axial cantilevers 21A, and vibration received by the electrolytic capacitor 200 during use is absorbed by the plurality of axial cantilevers 21A, thereby achieving the purpose of preventing vibration and realizing the protection of the electrolytic capacitor 200. Further, the second end 22 of the retaining sleeve 20 abuts against the wiring board 300 of the frequency converter, so that the second end 22 of the retaining sleeve 20 is brought into close contact with the wiring board 300 to prevent dust from entering the inside of the frequency converter from the electrolytic capacitor side.

It should be noted that, although only two capacitor mounting holes 11 are shown in this embodiment, it should be understood by those skilled in the art that the number of capacitor mounting holes 11 is not limited thereto in some other embodiments of the present invention, and may be, for example, one or three, five, six, etc.

In an exemplary embodiment, as shown in fig. 7, the substrate 10 is further formed with a first through hole 12 adapted to mount a heat sink and a second through hole 13 adapted to pass through the IGBT module. In addition, a reinforcing rib 14 is formed on the side of the substrate 10 close to the circuit board 300 to improve the stability of the substrate 10. Here, the substrate 10 is configured to support and fix the circuit board 300 of the inverter, and therefore, the substrate 10 is also formed with through holes or partitions compatible with the components on the circuit board 300 or other components of the inverter, and components for connection and fixation. It is understood that the through holes, the partitions or the components for connection and fixation on the substrate 10 are known to those skilled in the art according to the design of the frequency converter, and will not be shown or described herein.

As shown in fig. 1, 3 to 6, and 8 to 10, in an exemplary embodiment, the free end of each axial cantilever 21A is formed to be tightened from the inner side surface of the retaining sleeve 20 toward the electrolytic capacitor 200, and is formed in a claw shape or a hoop shape to abut on the outer circumferential surface of the electrolytic capacitor 200, so that the electrolytic capacitor 200 can be more firmly fixed.

As shown in fig. 1, 3 to 6, and 8 to 10, in an exemplary embodiment, the plurality of axial cantilevers 21A are equally spaced along the circumference of the retaining sleeve 20, so that the electrolytic capacitor 200 can be easily positioned at the center of the retaining sleeve 20 by the plurality of axial cantilevers 21A, that is, the axis of the electrolytic capacitor 200 coincides with the axis of the retaining sleeve 20.

In this embodiment, the retaining sleeve 20, the substrate 10 and the frame 30 may be integrally formed (e.g., by molding) from plastic, so as to simplify the manufacturing process and reduce the manufacturing cost. In addition, the impact of vibration on the electrolytic capacitor can be further reduced by utilizing the toughness of the plastic material.

As shown in fig. 1 to 5, the present invention further provides a frequency converter, which comprises an electrolytic capacitor 200, a circuit board 300 and the above mounting assembly 100, wherein the electrolytic capacitor 200 is fixed in the retaining sleeve 20, and the circuit board 300 is connected to the connecting portion 40.

It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.

Having described preferred embodiments of the present invention in detail, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope and spirit of the appended claims, and the invention is not to be limited to the exemplary embodiments set forth in the specification.

Claims

1. A mounting assembly for a frequency converter, comprising a substrate adapted to mount an electrolytic capacitor, characterized in that said substrate is integrally formed with at least one protruding connecting portion, each of said connecting portions extending from the same side of said substrate and in a direction away from said substrate, said connecting portions being adapted to connect to a circuit board of said frequency converter.

2. The mounting assembly of claim 1, further comprising a bezel extending from an edge of the substrate in a direction away from the substrate, the bezel being on a same side of the substrate as the connecting portion, and a height of the bezel in a direction perpendicular to the substrate being greater than a sum of a height of the connecting portion in the direction perpendicular to the substrate and a thickness of the circuit board.

3. The mounting assembly of claim 2, wherein each of the connecting portions is formed with a mounting hole to mount the circuit board at an end of the connecting portion remote from the substrate.

4. The mounting assembly of claim 2, wherein the plurality of connecting portions are spaced apart along a circumference of the base plate.

5. The mounting assembly of claim 1, wherein the substrate further integrally forms at least one protruding grounding portion, the grounding portion and the connecting portion are located on the same side of the substrate, the grounding portion is formed with a through hole, and a grounding member for connecting to the circuit board penetrates out of the through hole for grounding.

6. The mounting assembly of any one of claims 1-5, wherein the substrate defines at least one capacitor mounting hole, each capacitor mounting hole having a retaining sleeve adapted to retain the electrolytic capacitor, the retaining sleeve having a first end and a second end opposite the first end, the first and second ends being located on opposite sides of the substrate, the first end defining a plurality of axial cantilevers, each of the axial cantilevers abutting an outer circumferential surface of the electrolytic capacitor to secure the electrolytic capacitor.

7. The mounting assembly of claim 6, wherein a free end of each of the axial cantilevers is formed to be tightened from an inner side surface of the retaining sleeve toward the electrolytic capacitor to abut against an outer circumferential surface of the electrolytic capacitor.

8. The mounting assembly of claim 6, wherein a plurality of the axial cantilevers are equally spaced along a circumference of the retaining sleeve.

9. The mounting assembly of claim 6 wherein the second end of the retaining sleeve abuts the circuit board.

10. The mounting assembly of claim 6, wherein the retaining sleeve is integrally formed with the base plate.

11. The mounting assembly of claim 10 wherein said mounting assembly is integrally formed of plastic.

12. Frequency converter, characterized in that it comprises a mounting assembly according to any one of claims 1-11.