CN214102140U

CN214102140U - PWM rectifier structure

Info

Publication number: CN214102140U
Application number: CN202022913027.3U
Authority: CN
Inventors: 薛峰; 岳倩倩; 张跃看
Original assignee: Anhui Sanlian University
Current assignee: Anhui Sanlian University
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-08-31
Anticipated expiration: 2030-12-04

Abstract

The utility model discloses a PWM rectifier structure, including casing, fixed plate, fin subassembly, wherein: the fixed plate is arranged below the shell and used for fixing the shell, and the radiating fin component is arranged on the side surface of the shell; the radiating fin component comprises a plurality of fixed radiating fins, a plurality of sliding radiating fins and a fixing piece, wherein the fixed radiating fins are mutually fixed on the side surface of the shell in parallel, one sliding radiating fin is slidably mounted on one fixed radiating fin, the sliding radiating fins can horizontally slide on the fixed radiating fins towards the direction close to or far away from the shell, and the sliding radiating fins are fixed on the fixed radiating fins through the fixing piece. The utility model discloses in, the distance of slip fin relatively fixed fin roll-off can be adjusted according to installation space's the condition to the PWM rectifier structure that provides, and then according to installation space furthest's increase radiating effect, can adjust the length of fin subassembly according to actual conditions, and the best radiating effect is guaranteed to furthest.

Description

PWM rectifier structure

Technical Field

The utility model relates to a rectifier technical field especially relates to a PWM rectifier structure.

Background

Rectifiers are devices that convert ac power to dc power and are used in power supplies and for detecting radio signals. The rectifier may be made of a vacuum tube, an igniter tube, a solid state silicon semiconductor diode, a mercury arc, or the like. The rectifier can produce the heat at the course of the work, and to the rectifier that the loss is less, the heat that produces can not influence the use, and the heat that produces when the loss is higher is also more, can not in time give off when the heat, changes the migration characteristic of electron easily, and the rectifier damages. The shell of the existing rectifier is provided with a fixed heat dissipation fan, so that heat dissipation is facilitated, and the heat dissipation condition of the rectifier is fixed due to different installation spaces or temperature environments and cannot be adjusted according to actual conditions.

SUMMERY OF THE UTILITY MODEL

For the technical problem who exists among the solution background art, the utility model provides a PWM rectifier structure.

The utility model provides a PWM rectifier structure, including casing, fixed plate, fin subassembly, wherein:

the fixed plate is arranged below the shell and used for fixing the shell, and the radiating fin component is arranged on the side surface of the shell;

the radiating fin component comprises a plurality of fixed radiating fins, a plurality of sliding radiating fins and a fixing piece, wherein the fixed radiating fins are mutually fixed on the side surface of the shell in parallel, one sliding radiating fin is slidably mounted on one fixed radiating fin, the sliding radiating fins can horizontally slide on the fixed radiating fins towards the direction close to or far away from the shell, and the sliding radiating fins are fixed on the fixed radiating fins through the fixing piece.

As the utility model discloses the scheme of further optimization still includes the linkage board, and the one end that fixed fin was kept away from to a plurality of slip fins is fixed on the linkage board, and the linkage board is used for driving a plurality of slip fins and removes simultaneously.

As a further optimized proposal of the utility model, a handle groove is arranged on the linkage plate.

As the utility model discloses the scheme of further optimization, the mounting is the heat conduction post, and the heat conduction post runs through a plurality of fixed fin and a plurality of slip fin.

As the utility model discloses further optimized scheme, it has a plurality of coaxial first fixed orificess to open on a plurality of fixed radiating fins, and it has coaxial second fixed orifices to open on a plurality of sliding radiating fins, and the heat conduction post is established in first fixed orifices and second fixed orifices.

As a further preferred aspect of the present invention, the opposite sides of the housing are provided with side fin assemblies.

As a further preferred aspect of the present invention, the top of the housing is provided with detachable heat sink fins.

As the utility model discloses the scheme of further optimization, the cooling group piece includes connecting rod and a plurality of dispersion heat piece, and a plurality of dispersion heat pieces are all fixed on the connecting rod, and dispersion heat piece joint is on the casing.

As the utility model discloses the scheme of further optimization, the top of casing is equipped with a plurality of heat dissipation supports that are parallel to each other, and arbitrary two adjacent heat dissipations support and form the joint space within a definite time, and the dispersion heat piece matches with the joint space.

As the utility model discloses the scheme of further optimization, the middle part in joint space is equipped with accepts the board, accepts the board and is used for supporting the dispersion fever piece, accepts the board and separates the joint space for last fixed part and lower heat dissipation part.

The utility model discloses in, the distance of slip fin relatively fixed fin roll-off can be adjusted according to installation space's the condition to the PWM rectifier structure that provides, and then according to installation space furthest's increase radiating effect, can adjust the length of fin subassembly according to actual conditions, and the best radiating effect is guaranteed to furthest.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is the structure schematic diagram of the utility model after the heat dissipation assembly is disassembled.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar designations denote like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

A PWM rectifier structure as shown in fig. 1-2, comprising a housing 1, a fixed plate 2, and a heat sink assembly 3, wherein:

the fixed plate 2 is arranged below the shell 1 and used for fixing the shell 1, and the radiating fin component 3 is arranged on the side surface of the shell 1;

the heat sink assembly 3 comprises a plurality of fixed heat sinks 30, a plurality of sliding heat sinks 31 and a fixing member 32, wherein the plurality of fixed heat sinks 30 are fixed on the side surface of the housing 1 in parallel, one sliding heat sink 31 is slidably mounted on one fixed heat sink 30, the sliding heat sink 31 can horizontally slide on the fixed heat sink 30 in a direction close to or far away from the housing 1, and the sliding heat sink 31 is fixed on the fixed heat sink 30 through the fixing member 32;

the linkage plate 4 is further included, and the plurality of sliding radiating fins 31 are far away from the fixed radiating fins;

a handle groove 40 is arranged on the linkage plate 4;

the fixing member 32 is a heat-conducting pillar made of aluminum alloy, and the heat-conducting pillar penetrates through the plurality of fixed fins 30 and the plurality of sliding fins 31;

a plurality of first fixing holes which are coaxial are formed in the plurality of fixing radiating fins 30, a plurality of second fixing holes which are coaxial are formed in the plurality of sliding radiating fins 31, and the heat conducting columns are arranged in the first fixing holes and the second fixing holes;

two opposite sides of the shell 1 are provided with side radiating fin assemblies;

the top of the shell 1 is provided with a detachable heat dissipation assembly piece 5, the heat dissipation assembly piece 5 comprises a connecting rod 50 and a plurality of heat dissipation pieces 51, the heat dissipation pieces 51 are all fixed on the connecting rod 50, the heat dissipation pieces 51 are clamped on the shell 1, the whole heat dissipation assembly piece 5 is lifted by lifting the connecting rod 50, and therefore the heat dissipation assembly pieces 51 can be moved conveniently;

the top of the shell 1 is provided with a plurality of heat dissipation supports 6 which are parallel to each other, a clamping space 8 is formed between any two adjacent heat dissipation supports 6, and the heat dissipation fins 51 are matched with the clamping space 8;

the middle part of the clamping space 8 is provided with a bearing plate 7, the bearing plate 7 is used for supporting the heat dispersion piece 51, and the bearing plate 7 divides the clamping space 8 into an upper fixing part 80 and a lower heat dissipation part 81.

In the working process of the embodiment: the sliding distance of the sliding radiating fins 31 relative to the fixed radiating fins 30 is adjusted by pulling the linkage plate 4 according to the size of the actual installation space, so that the lengths and the maximum of the sliding radiating fins 31 and the fixed radiating fins 30 in the installation space are ensured, and the optimal radiating effect is further ensured; if the installation space allows, or dismantle the roof of rectifier place box summer, can install dispersion fever group piece 5 at casing 1 top, dispersion fever piece 51 and joint space 8 joint, increase radiating effect, the setting of accepting board 7 has further increased radiating effect.

In order to facilitate the synchronous movement of the plurality of sliding heat dissipation fins 31, in this embodiment, it is preferable that the heat dissipation device further includes a linkage plate 4, one end of the plurality of sliding heat dissipation fins 31, which is far away from the fixed heat dissipation fins 30, is fixed on the linkage plate 4, and the linkage plate 4 is used for driving the plurality of sliding heat dissipation fins 31 to move simultaneously.

In order to facilitate pulling or pushing the linkage plate 4, in the embodiment, it is preferable that the linkage plate 4 is provided with a handle groove 40.

In order to increase the heat transfer between the plurality of fins and increase the heat dissipation effect, in the present embodiment, it is preferable that the fixing member 32 is a heat conducting pillar made of aluminum alloy, and the heat conducting pillar penetrates through the plurality of fixed fins 30 and the plurality of sliding fins 31.

In order to facilitate fixing of the sliding heat sink 31, increase heat transfer between the heat sinks, and increase heat dissipation effect, in this embodiment, preferably, a plurality of first fixing holes are formed on the plurality of fixing heat sinks 30, a plurality of second fixing holes are formed on the plurality of sliding heat sinks 31, and the heat conduction columns are disposed in the first fixing holes and the second fixing holes.

In order to increase the heat dissipation effect, it is preferable in this embodiment that the opposite sides of the housing 1 are provided with the side fin members 3.

In order to further increase the heat dissipation effect of the present application when the space allows, in the present embodiment, it is preferable that the top of the housing 1 is provided with a detachable heat dissipation plate 5.

In this embodiment, the heat dissipating assembly 5 includes a connecting rod 50 and a plurality of heat dissipating heat.

In order to facilitate the installation of the sub-radiating fins 5, in this embodiment, it is preferable that the top of the housing 1 is provided with a plurality of radiating supports 6 parallel to each other, a clamping space 8 is formed between any two adjacent radiating supports 6, and the heat-dissipating fins 51 are matched with the clamping space 8.

In order to facilitate heat dissipation, in the present embodiment, it is preferable that a receiving plate 7 is disposed in the middle of the clamping space 8, the receiving plate 7 is used for supporting the heat dissipation sheet 51, and the receiving plate 7 divides the clamping space 8 into an upper fixing portion 80 and a lower heat dissipation portion 81.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A PWM rectifier structure, characterized by, includes casing (1), fixed plate (2), fin subassembly (3), wherein:

the fixing plate (2) is arranged below the shell (1) and used for fixing the shell (1), and the heat sink assembly (3) is arranged on the side surface of the shell (1);

the radiating fin assembly (3) comprises a plurality of fixed radiating fins (30), a plurality of sliding radiating fins (31) and fixing pieces (32), wherein the fixed radiating fins (30) are fixed on the side surface of the shell (1) in parallel, one sliding radiating fin (31) is installed on one fixed radiating fin (30) in a sliding mode, the sliding radiating fin (31) can horizontally slide on the fixed radiating fins (30) towards the direction close to or away from the shell (1), and the sliding radiating fin (31) is fixed on the fixed radiating fins (30) through the fixing pieces (32).

2. The PWM rectifier structure according to claim 1, further comprising a linkage plate (4), wherein one end of the plurality of sliding heat sinks (31) far away from the fixed heat sink (30) is fixed on the linkage plate (4), and the linkage plate (4) is used for driving the plurality of sliding heat sinks (31) to move simultaneously.

3. The PWM rectifier structure according to claim 2, characterized in that the linkage plate (4) is provided with a handle slot (40).

4. The PWM rectifier structure according to claim 1, characterized in that the fixing member (32) is a heat conducting pillar, which penetrates the plurality of fixed fins (30) and the plurality of sliding fins (31).

5. The PWM rectifier structure according to claim 4, wherein the plurality of fixed fins (30) have a plurality of coaxial first fixed holes, the plurality of sliding fins (31) have a plurality of coaxial second fixed holes, and the heat-conducting posts are disposed in the first fixed holes and the second fixed holes.

6. The PWM rectifier structure according to claim 1, characterized in that the housing (1) is provided with lateral heat sink assemblies (3) on opposite sides.

7. The PWM rectifier structure according to claim 1, characterized in that the top of the housing (1) is provided with a detachable heat sink (5).

8. The PWM rectifier structure according to claim 7, characterized in that the heat sink assembly (5) comprises a connecting rod (50) and a plurality of heat dissipating fins (51), the heat dissipating fins (51) are fixed on the connecting rod (50), and the heat dissipating fins (51) are clamped to the housing (1).

9. The PWM rectifier structure according to claim 8, wherein a plurality of heat dissipation supports (6) parallel to each other are arranged on the top of the housing (1), a clamping space (8) is formed between any two adjacent heat dissipation supports (6), and the heat dissipation fins (51) are matched with the clamping space (8).

10. The PWM rectifier structure according to claim 9, characterized in that the middle of the clamping space (8) is provided with a receiving plate (7), the receiving plate (7) is used to support the heat dissipating fins (51), and the receiving plate (7) divides the clamping space (8) into an upper fixing portion (80) and a lower heat dissipating portion (81).