CN219843534U

CN219843534U - Compact frequency converter

Info

Publication number: CN219843534U
Application number: CN202320910369.0U
Authority: CN
Inventors: 张洪; 刘康
Original assignee: Shenzhen Jiangsheng Control Technology Co ltd
Current assignee: Shenzhen Jiangsheng Control Technology Co ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-10-17
Anticipated expiration: 2033-04-17

Abstract

The utility model discloses a compact frequency converter, which comprises a shell, a circuit component, a heat conduction component and a heat dissipation component, wherein the circuit component is arranged in the shell; the heat conduction assembly is arranged in the shell and is provided with an accommodating space for accommodating the circuit assembly, so that heat of the circuit assembly is transferred to the heat conduction assembly; the heat dissipation assembly is connected with the heat conduction assembly and used for transferring heat of the heat conduction assembly to the outside of the shell. The utility model can reduce the whole volume, can realize common heat dissipation of various circuit elements inside, has better heat dissipation effect and simple structure.

Description

Compact frequency converter

Technical Field

The utility model relates to the technical field of frequency converters, in particular to a compact frequency converter.

Background

The frequency converter is a power control device which controls the alternating current motor by changing the frequency of a working power supply of the motor by applying a frequency conversion technology and a microelectronic technology; the current frequency converters are various in types, the corresponding volumes are different, and the scenes applied by the frequency converters with different volumes are different; in the related art, in order to reduce the size of the frequency converter, the circuit elements inside the frequency converter are usually required to be closely arranged, but the size is reduced, and meanwhile, various circuit elements inside the frequency converter are difficult to realize common heat dissipation, so that the heat dissipation effect is poor, and the structure is complex.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. To this end, an object of the utility model is to propose a compact frequency converter comprising:

a housing;

a circuit assembly disposed within the housing;

a heat conduction assembly provided in the housing and configured with an accommodating space for accommodating the circuit assembly so that heat of the circuit assembly is transferred to the heat conduction assembly;

and the heat dissipation assembly is connected with the heat conduction assembly and used for transmitting heat of the heat conduction assembly to the outside of the shell.

Preferably, the heat conduction assembly includes:

the first heat conducting plate is arranged in the shell and is attached to the heat radiating component;

the second heat conducting plate is parallel to the first heat conducting plate, and two sides of the second heat conducting plate are respectively abutted to the shell and the first heat conducting plate so as to respectively form a first accommodating space and a second accommodating space.

Preferably, the circuit assembly comprises:

the first circuit board is arranged in the first accommodating space and is abutted against the first heat conducting plate;

the second circuit board is arranged at intervals with the first circuit board and is abutted against one side of the second heat conducting plate;

the third circuit board is arranged in the second accommodating space and is abutted against the other side of the second heat conducting plate.

Preferably, the heat dissipation assembly includes:

a heat sink provided on the first heat conductive plate;

and the radiating fan is arranged on the radiating fin so as to transfer the heat of the radiating fin to the outside of the shell.

Preferably, the heat dissipation assembly further comprises a heat conduction pipe, one end of the heat conduction pipe is connected with the heat dissipation plate, and the other end of the heat conduction pipe is connected with the second heat conduction plate.

Preferably, the housing is provided with a heat dissipation hole, and the heat dissipation hole is adjacent to an air outlet of the heat dissipation fan, so that the heat dissipation fan transfers heat of the heat dissipation fin to the outside of the housing through the heat dissipation hole.

Preferably, the first and second heat conductive plates are made of an insulating material.

Preferably, a wiring terminal is arranged outside the shell, and the wiring terminal is arranged along the width direction of the shell and is electrically connected with the circuit component.

The scheme of the utility model at least comprises the following beneficial effects:

according to the compact frequency converter disclosed by the utility model, the heat conduction assembly is configured into the accommodating space to accommodate the circuit assembly, so that most of heat of the circuit assembly can be transferred to the heat conduction assembly, and then the heat conduction assembly transfers the heat to the heat dissipation assembly, so that the heat is transferred to the outside of the shell through the heat dissipation assembly, the whole volume can be reduced, various circuit elements in the circuit assembly can realize common heat dissipation, the heat dissipation effect is better, and the structure is simple.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a compact frequency converter provided in an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a compact frequency converter provided in an embodiment of the utility model;

FIG. 3 is an exploded view of a compact frequency converter provided in an embodiment of the utility model;

fig. 4 is an exploded view of a circuit assembly, a heat conducting assembly and a heat dissipating assembly according to an embodiment of the present utility model.

Reference numerals illustrate:

10. a housing; 11. a heat radiation hole; 12. a connection terminal; 20. a circuit assembly; 21. a first circuit board; 22. a second circuit board; 23. a third circuit board; 30. a heat conducting component; 31. a first heat-conducting plate; 32. a second heat-conducting plate; 33. a first accommodation space; 34. a second accommodation space; 40. a heat dissipation assembly; 41. a heat sink; 42. a heat radiation fan; 43. a heat conduction pipe.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below are exemplary and intended to illustrate the present utility model and should not be construed as limiting the utility model, and all other embodiments, based on the embodiments of the present utility model, which may be obtained by persons of ordinary skill in the art without inventive effort, are within the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The compact frequency converter of the embodiment of the present utility model is described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, the compact frequency converter provided by the utility model comprises a housing 10, a circuit assembly 20, a heat conduction assembly 30 and a heat dissipation assembly 40, wherein the circuit assembly 20 is arranged in the housing 10; the heat conduction assembly 30 is disposed in the housing 10 and is configured with a receiving space for receiving the circuit assembly 20 so that heat of the circuit assembly 20 is transferred to the heat conduction assembly 30; the heat dissipation assembly 40 is connected to the heat conduction assembly 30 for transferring heat of the heat conduction assembly 30 to the outside of the housing 10.

According to the compact frequency converter disclosed by the utility model, the heat conduction assembly 30 is configured into the accommodating space to accommodate the circuit assembly 20, so that most of heat of the circuit assembly 20 can be transferred to the heat conduction assembly 30, and further, the heat conduction assembly 30 transfers the heat to the heat dissipation assembly 40, so that the heat is transferred to the outside of the shell 10 through the heat dissipation assembly 40, the whole volume can be reduced, various circuit elements in the circuit assembly can realize common heat dissipation, the heat dissipation effect is better, and the structure is simple.

Referring to fig. 2 to 4, the heat conducting assembly 30 includes a first heat conducting plate 31 and a second heat conducting plate 32, wherein the first heat conducting plate 31 is disposed in the housing 10 and is attached to the heat dissipating assembly 40; the second heat-conducting plate 32 is parallel to the first heat-conducting plate 31, and two sides of the second heat-conducting plate are respectively abutted against the shell 10 and the first heat-conducting plate 31 to respectively form a first accommodating space 33 and a second accommodating space 34.

In this embodiment, the first heat-conducting plate 31 and the second heat-conducting plate 32 are made of insulating materials, for example, silica gel materials; the first heat-conducting plate 31 and the second heat-conducting plate 32 are assembled in the shell 10, so that the first heat-conducting plate 31 and the second heat-conducting plate 32 form a first accommodating space 33, a second accommodating space 34 is formed between the second heat-conducting plate 32 and the shell 10, and the first circuit board 21 and the second circuit board 22 are fixed in the first accommodating space 33, and the third circuit board 23 is fixed in the second accommodating space 34, so that the whole internal space of the frequency converter can be saved, and the frequency converter is simpler in structure and smaller in volume.

Further, the circuit assembly 20 includes a first circuit board 21, a second circuit board 22 and a third circuit board 23, where the first circuit board 21 is disposed in the first accommodating space 33 and is abutted against the first heat conducting plate 31; the second circuit board 22 is arranged at intervals with the first circuit board 21 and is abutted against one side of the second heat conducting plate 32; the third circuit board 23 is disposed in the second accommodating space 34 and abuts against the other side of the second heat conducting plate 32.

Referring to fig. 4, the heat dissipating assembly 40 includes a heat sink 41 and a heat dissipating fan 42, the heat sink 41 being disposed on the first heat conducting plate 31; the heat radiation fan 42 is provided on the heat radiation fin 41 to transfer heat of the heat radiation fin 41 to the outside of the housing 10; the heat dissipation assembly 40 further includes a heat conduction pipe 43, wherein one end of the heat conduction pipe 43 is connected to the heat dissipation plate 41, and the other end is connected to the second heat conduction plate 32.

In this embodiment, the heat of the first circuit board 21 can be directly transferred to the first heat conducting plate 31, the heat of the second circuit board 22 and the third circuit board 23 can be transferred to the second heat conducting plate 32, so that the heat of the first heat conducting plate 31 can be directly transferred to the heat dissipating fin 41, the heat of the second heat conducting plate 32 can be transferred to the heat dissipating fin 41 through the heat conducting tube 43, and therefore the heat of the heat dissipating fin 41 is transferred to the outside of the casing 10 through the heat dissipating fan 42, so that the overall structure is simpler and the heat dissipating effect is better.

Specifically, the casing 10 is provided with a heat dissipation hole 11, and the heat dissipation hole 11 is adjacent to an air outlet of the heat dissipation fan 42, so that the heat dissipation fan 42 transfers heat of the heat dissipation fin 41 to the outside of the casing 10 through the heat dissipation hole 11. Wherein, the air inlet of the cooling fan 42 is close to the cooling fin 41, and the air outlet of the cooling fan 42 faces the cooling hole 11, so that the heat on the cooling fin 41 can be transferred to the outside of the casing 10 through the cooling hole 11 when the cooling fan 42 works, and the cooling effect is better.

It is understood that the housing 10 is externally provided with the connection terminals 12, and the connection terminals 12 are arranged along the width direction of the housing 10 and electrically connected with the circuit assembly 20. The connection terminal 12 may be used for electrical connection such as a motor during installation of the frequency converter, so that the power of the motor can be controlled during operation of the frequency converter, and the overall size of the frequency converter is smaller, so that the frequency converter is more diversified in application scene.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A compact frequency converter, comprising:

a housing;

a circuit assembly disposed within the housing;

2. The compact frequency converter of claim 1, wherein the thermally conductive assembly comprises:

3. The compact frequency converter of claim 2, wherein the circuit assembly comprises:

4. The compact frequency converter of claim 2, wherein the heat sink assembly comprises:

a heat sink provided on the first heat conductive plate;

5. The compact frequency converter of claim 4 wherein said heat dissipating assembly further comprises a heat pipe having one end connected to said heat sink and another end connected to said second heat conductive plate.

6. The compact frequency converter as recited in claim 4, characterised in that said housing is provided with a heat sink adjacent to an air outlet of said heat sink fan such that said heat sink fan transfers heat from said heat sink to outside said housing via said heat sink.

7. The compact frequency converter of claim 2, wherein the first and second heat conductive plates are made of an insulating material.

8. The compact frequency converter of claim 1, wherein a terminal is disposed outside the housing, the terminal being disposed along a width direction of the housing and electrically connected to the circuit assembly.