CN217563513U

CN217563513U - Frequency converter combined structure

Info

Publication number: CN217563513U
Application number: CN202220709066.8U
Authority: CN
Inventors: 操军; 杨浩; 杨志洵; 张晓光
Original assignee: Wuhan Sine Electric Technology Co ltd
Current assignee: Wuhan Sine Electric Technology Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-10-11
Anticipated expiration: 2032-03-28

Abstract

The utility model discloses a frequency converter combined structure, which relates to the technical field of frequency converters, and comprises a box body shell which is in a U-shaped structure; the inner partition plate is fixed in a U-shaped cavity of the box body shell; the inner partition board comprises a bottom board and side boards arranged on two sides of the bottom board; the bottom plate and the bottom of the box body shell are arranged at intervals to form a first containing cavity with left and right openings; the side plates are respectively fixed with the side openings of the box body shell to form a second containing cavity with an upward opening; the sealing plate is hinged with the box body shell through a hinge and is arranged in an opening and closing mode relative to the box body shell so as to open or close the second containing cavity; in this scheme, carry out the layer design to traditional quick-witted case for have first appearance chamber and second in the structure that this scheme provided and hold the chamber, arrange various subassemblies between two appearance chambeies respectively, make to separate effectively between subassembly and the subassembly, avoid appearing all being in the problem that leads to the overall arrangement confusion in same space like traditional design.

Description

Frequency converter composite structure

Technical Field

The utility model belongs to the technical field of the converter technique and specifically relates to a converter integrated configuration.

Background

The existing low-voltage medium-power frequency converter internally comprises a plurality of power devices, but various power components are all distributed in one space at present, so that the internal space of a case is limited; especially when parts of the components are repaired or replaced, the other components may need to be detached, and considering the inside of the frequency converter, if a safety distance is required between the components, the volume of the frequency converter is increased, and certain market competitiveness of the frequency converter is lost in terms of appearance and cost.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides a quick-witted case integrated configuration of new converter carries out reasonable design through the integrated configuration to here for the required various subassemblies of converter can distribute rationally.

The utility model provides a concrete scheme as follows:

a frequency converter composite structure comprises

The box body shell is of a U-shaped structure;

the inner partition plate is fixed in a U-shaped cavity of the box body shell; the inner partition plate comprises a bottom plate and side plates arranged on two sides of the bottom plate; the bottom plate and the bottom of the box body shell are arranged at intervals to form a first containing cavity with a left opening and a right opening; the side plates are respectively fixed with the side openings of the box body shell to form second containing cavities with upward openings; and

the closing plate is hinged to the box body shell through a hinge, and the closing plate is arranged to be opened and closed relative to the box body shell so as to open or close the second containing cavity.

Furthermore, the left opening and the right opening of the bottom of the box body shell are provided with rib feet, and the rib feet and the box body shell are of an integrally formed structure.

Furthermore, a bending flanging is arranged at the bottom of the box body shell, and a stepped structure is arranged at the position of the bottom plate corresponding to the bending flanging; the bent flanging and the stepped structure are configured to be capable of blocking and limiting the radiator arranged in the first cavity.

Furthermore, a protection plate is further arranged at an opening, close to the radiator, in the first accommodating cavity, and is fixed on the box body outer shell, and a heat dissipation fan is fixed on the protection plate.

Furthermore, a ventilation net is further arranged at an opening, far away from the radiator, in the first cavity.

Furthermore, each edge of the bottom plate and each edge of the side plate are respectively provided with a bent edge, and the bottom plate and the side plate are fixed with the box body shell through the respective edges.

Furthermore, a driving plate is arranged in the first cavity, and four corners of the driving plate are fixed with insulating columns to be fixed with the bottom plate; and the driving plate is provided with a driving assembly.

Further, a bracket for controlling assembly installation is further arranged in the first accommodating cavity; the bracket is configured that a holding edge is provided at a position corresponding to the bracket in the box casing, and the bracket is fixed to the box casing through the holding edge.

Furthermore, a detachable plastic seat is mounted on the bracket, and the control assembly is fixed on the bracket through the plastic seat;

the bottom position of plastic seat is equipped with the card foot, on the bracket with the position that the card foot corresponds has set up the bayonet socket, the card foot inserts realize in the bayonet socket plastic seat with the installation of bracket.

Further, be provided with the installing port on the shrouding, the tray is installed to installing port department joint, but the tray is configured as joint installation display keyboard.

The beneficial effect that adopts this technical scheme to reach does:

in this scheme, carry out the layer design to traditional quick-witted case for have first appearance chamber and second in the structure that this scheme provided and hold the chamber, arrange various subassemblies between two appearance chambeies respectively, make to separate effectively between subassembly and the subassembly, avoid appearing all being in the problem that leads to the overall arrangement confusion in same space like traditional design.

Simultaneously, the reasonable layout design is carried out on the case structure, so that the frequency converter combination structure provided by the scheme is more compact.

Drawings

Fig. 1 is an overall structural view of the frequency converter assembly structure.

Fig. 2 is a structure diagram of the housing and the inner partition.

Fig. 3 isbase:Sub>A schematic cross-sectional view taken along linebase:Sub>A-base:Sub>A in fig. 2.

Fig. 4 is an exploded view of the frequency converter assembly.

Fig. 5 is an exploded view of the closure plate.

Wherein: 10 box body shells, 11 rib feet, 12 bent flanging, 13 protection plates, 14 fans, 15 air nets, 20 inner partition plates, 21 bottom plates, 22 side plates, 31 driving plates, 32 edge columns, 33 brackets, 34 plastic seats, 40 sealing plates, 41 trays and 101 radiators.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

The embodiment provides a frequency converter combined structure, which mainly aims at improving the structure of the whole machine box, and the combined structure provided by the scheme is adopted, so that the whole structure is more compact; meanwhile, the chassis is designed in a layered mode, so that the components are distributed more reasonably, and the connection reliability is improved.

Specifically, referring to fig. 1 to 5, the present solution provides a combined structure including a box body housing 10, an inner partition plate 20, and a closing plate 40; the box body shell 10 provided by the scheme is of a U-shaped structure; the inner baffle 20 is fixed in the U-shaped cavity of the box body shell 10; with the internal partition 20 here, the delamination of the internal cavity of the box housing 10 is achieved.

The inner baffle 20 comprises a bottom plate 21 and side plates 22 arranged at two sides of the bottom plate 21; wherein, the bottom plate 21 and the bottom of the box body shell 10 are arranged at intervals to form a first containing cavity with left and right openings; the side plates 22 are respectively fixed with the side openings of the box body shell 10 to form second containing cavities with upward openings; it can be understood that the inner partition plate 20 is disposed in the box casing 10, and the U-shaped cavity of the box casing 10 is divided into an upper layer and a lower layer by the inner partition plate 20, that is, a first cavity and a second cavity, and the first cavity and the second cavity are used to make the respective components reasonably distributed.

In this scheme, the situation that the frequency converter may have vibration impact during operation is considered, and here the box shell 10 is optimally designed, specifically, the left and right openings at the bottom of the box shell 10 are provided with the rib feet 11, and the rib feet 11 and the box shell 10 are of an integrally formed structure. Muscle foot 11 sets up to fillet structure with box shell 10 junction, is favorable to avoiding stress concentration through such design, compares in traditional simple fixed quick-witted case's mode, and this scheme utilizes box shell 10 here and muscle foot 11's special connected mode to reduce the vibration impact influence that whole converter composite structure brought.

In the scheme, the bottom of the box body shell 10 is provided with a bending flanging 12, the bottom plate 21 described above is provided with a stepped structure, and the position of the stepped structure corresponds to the position of the bending flanging 12; by means of the bent flanging 12 and the stepped structure, an installation position is formed and used for installing the radiator 101, namely the installation position can block and limit the radiator 101 installed in the first accommodating cavity, and installation stability of the radiator 101 is guaranteed.

Meanwhile, a protection plate 13 is further disposed in the first cavity near the opening of the heat sink 101, the protection plate 13 is fixed on the box body housing 10, and a heat dissipation fan 14 is fixed on the protection plate 13. In traditional quick-witted case design, radiator fan generally directly passes through the bolt fastening on the box, and fixes through guard plate 13 in this scheme, overhauls or the in-process of changing, only through swift guard plate 13 of pulling down just can make two fans be detached simultaneously, and is simple and convenient.

Optionally, a ventilation net is further disposed at an opening of the first cavity far from the heat sink 101, and the ventilation net 15 is used to maintain the circulation of the airflow in the entire frequency converter.

In the scheme, the edges of the bottom plate 21 and the side plate 22 are provided with bent edges, and the bottom plate 21 and the side plate 22 are fixed with the box body shell 10 through the respective edges; a driving plate 31 is arranged in the first accommodating cavity, and insulating columns 32 are fixed at four corners of the driving plate 31 to be fixed with the bottom plate 21; the driving plate 31 is provided with a driving assembly; it will be appreciated that the drive assembly is mounted on and secured to the drive plate 31 and the drive plate 31 is secured to the base plate 21 by the insulating posts 32, the arrangement being such that the drive assembly does not make direct contact with the base plate 21.

In the scheme, a bracket 33 for controlling assembly installation is further arranged in the first accommodating cavity; a support edge is provided in the casing 10 at a position corresponding to the bracket 33, and the bracket 33 is fixed to the casing 10 via the support edge. The bracket 33 is provided to facilitate the installation of the control assembly, and specifically, a detachable plastic seat 34 is installed on the bracket 33, and the control assembly described above is fixed on the bracket 33 through the plastic seat 34; in order to facilitate the overhaul and the replacement of the control assembly, the plastic seat 34 is arranged to be of a detachable structure, specifically, a clamping pin is arranged at the bottom of the plastic seat 34, a bayonet is arranged at a position corresponding to the clamping pin on the bracket 33, and the clamping pin is inserted into the bayonet to realize the installation of the plastic seat and the bracket. Through the structure setting, great convenience is provided for the dismouting.

Of course, a closing plate 40 is also provided, the closing plate 40 being hinged to the box housing 10, the closing plate 40 being openably and closably arranged with respect to the box housing 10 to open or close the second receiving space. That is, the sealing plate 40 can be used to protect the control assembly and the driving assembly disposed in the second cavity.

To facilitate operation of the frequency converter, a mounting opening is provided in the cover plate 40, where a tray 41 is snap-fitted, where the tray 41 is configured to snap-fit a display keyboard. Of course, the keyboard needs to be electrically connected with electronic principle devices such as an internal control component and a driving component; the operator can make the cooperation work between each inside subassembly through the outside operation display keyboard.

Therefore, in conclusion, the traditional case is designed in a layered manner in the scheme, so that the structure provided by the scheme is provided with the first accommodating cavity and the second accommodating cavity, various components are respectively arranged between the two accommodating cavities, the components are effectively separated from one another, and the problem of disordered layout caused by the fact that all the components are located in the same space in the traditional design is avoided. Simultaneously, reasonable layout design is carried out on the case structure, so that the frequency converter combined structure provided by the scheme is more compact, and has a better anti-vibration and impact effect.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A frequency converter combined structure is characterized by comprising

A box body shell (10) which is in a U-shaped structure;

the inner partition plate (20) is fixed in a U-shaped cavity of the box body shell (10); the inner partition plate (20) comprises a bottom plate (21) and side plates (22) arranged on two sides of the bottom plate (21); the bottom plate (21) and the bottom of the box body shell (10) are arranged at intervals to form a first containing cavity with a left opening and a right opening; the side plates (22) are respectively fixed with the side openings of the box body shell (10) to form second containing cavities with upward openings; and

the sealing plate (40) is hinged to the box body shell (10) through a hinge, and the sealing plate (40) is arranged in an opening and closing mode relative to the box body shell (10) to open or close the second containing cavity.

2. The frequency converter combined structure according to claim 1, wherein rib feet (11) are arranged at left and right openings at the bottom of the box body shell (10), and the rib feet (11) and the box body shell (10) are of an integrally formed structure.

3. The frequency converter combined structure according to claim 2, wherein a bent flange (12) is arranged at the bottom of the box body shell (10), and the positions of the bottom plate (21) corresponding to the bent flange (12) are arranged to be in a stepped structure; the bent flanging (12) and the stepped structure are configured to block and limit a radiator (101) installed in the first accommodating cavity.

4. The frequency converter composite structure according to claim 3, wherein a protection plate (13) is further disposed in the first cavity at an opening close to the heat sink (101), the protection plate (13) is fixed on the box body housing (10), and a heat dissipation fan (14) is fixed on the protection plate (13).

5. A frequency converter assembly structure according to claim 4, characterized in that a ventilation net (15) is further arranged at the opening of the first cavity far away from the radiator (101).

6. A frequency converter assembly according to claim 1, characterized in that each edge of the bottom plate (21) and the side plate (22) is provided with a bent rim, and the bottom plate (21) and the side plate (22) are fixed to the box housing (10) by the respective rims.

7. A frequency converter assembly structure according to claim 6, characterized in that a driving plate (31) is arranged in the first cavity, and four corners of the driving plate (31) are fixed with insulating columns (32) to be fixed with the bottom plate (21); the driving plate (31) is provided with a driving assembly.

8. A frequency converter assembly according to claim 7, characterized in that a bracket (33) for mounting a control component is further arranged in the first cavity; a supporting edge is arranged in the box body shell (10) at a position corresponding to the bracket (33), and the bracket (33) is fixed with the box body shell (10) through the supporting edge.

9. A frequency converter assembly according to claim 8, characterized in that said bracket (33) is provided with a removable plastic seat (34), and said control unit is fixed to said bracket (33) by means of said plastic seat (34);

the bottom position of plastic seat (34) is equipped with the card foot, on bracket (33) with the position that the card foot corresponds has set up the bayonet socket, the card foot inserts realize plastic seat (34) in the bayonet socket with the installation of bracket (33).

10. A frequency converter assembly according to claim 1, wherein the sealing plate (40) is provided with a mounting opening, the mounting opening is snap-fitted with a tray (41), and the tray (41) is configured to snap-fit a display keyboard.