CN218733832U - Frequency converter - Google Patents

Abstract

The utility model provides a frequency converter, which comprises a shell, a radiator component, a power component and a driving component; the shell is provided with an installation space with an opening; the radiator assembly comprises a radiator main body and a radiator base, the radiator base is arranged at the opening and blocks the opening, and the radiator main body is arranged on the radiator base and is positioned in the installation space; the power assembly is attached to the radiator main body; the driving assembly is assembled on the radiator main body and arranged in the installation space. The utility model discloses an improve spatial layout and simplified the converter structure, reduced the converter volume, reduced the space occupation to the switch board, simultaneously, still simplified the installation, the later maintenance of being convenient for.

Description

Frequency converter

Technical Field

The utility model relates to a power equipment technical field, concretely relates to converter.

Background

Along with the increasingly clear functional requirements of the market on the frequency converter, the frequency converter gradually tends to be miniaturized, but the existing frequency converter with small volume generally adopts a flat structure, namely, the space occupation in the horizontal direction is increased, the space occupation in the vertical direction is reduced, or the space occupation in the vertical direction is increased, the space occupation in the horizontal direction is reduced, so that a single frequency converter occupies larger space of a control cabinet; meanwhile, the existing frequency converter structure needs to arrange the frequency converter components in the shell one by one when being assembled, and the installation steps are complicated and inconvenient to maintain.

SUMMERY OF THE UTILITY MODEL

The utility model provides a frequency converter has simplified the converter structure through improving spatial layout, has reduced the whole volume of converter, has reduced the occuping to the switch board space, simultaneously, has still simplified the installation step, has improved maintenance efficiency.

In a first aspect, the present invention provides a frequency converter, which includes a housing, a heat sink assembly, a power assembly and a driving assembly; the shell is provided with an installation space with an opening; the radiator assembly comprises a radiator main body and a radiator base, the radiator base is arranged at the opening and blocks the opening, and the radiator main body is arranged on the radiator base and is positioned in the installation space; the power assembly is attached to the radiator main body; the driving assembly is assembled on the radiator main body and is arranged in the installation space.

Further, the heat sink main body includes a heat dissipation plate and heat dissipation fins; the heat dissipation plate is vertically arranged on the radiator base and comprises a first installation surface and a second installation surface which are oppositely arranged, the heat dissipation fin is vertically arranged on the first installation surface, and the power assembly is arranged on the second installation surface.

Further, the drive assembly includes a drive plate and a capacitor; the driving board is perpendicular to the radiator base and assembled on the radiator main body, and comprises a third installation surface, the capacitor is arranged on the third installation surface, the third installation surface faces the second installation surface, and the capacitor is located above the radiating fins.

Furthermore, a guide post is arranged on the second mounting surface, and a guide hole matched with the guide post is formed in the driving plate.

Further, still include a electric capacity protection casing, the electric capacity protection casing is equipped with and runs through the electric capacity of electric capacity protection casing places the space, the electric capacity protection casing cover is located so that electric capacity is located on the drive plate the space is placed to the electric capacity.

Furthermore, the top of heating panel is equipped with a perpendicular to the mounting panel of first installation face, the mounting panel is equipped with first guide rail structure, the electric capacity protection casing is relative first guide rail structure is equipped with the guide rail groove.

Further, the electric capacity protection casing is equipped with the protection casing trip, on the drive plate with all be equipped with first draw-in groove on the mounting panel, the electric capacity protection casing passes through the protection casing trip with the cooperation of first draw-in groove respectively with the drive plate and mounting panel fixed connection.

Furthermore, one side of the capacitor protective cover, which is close to the driving plate, is provided with a surrounding structure, and forms an air channel with the first mounting surface, wherein one end of the radiator base is further provided with a cooling fan.

Further, still include the control panel, the control panel is located keep away from on the drive plate the one end of radiator base, just be equipped with the mounting hole on the control panel, the mounting panel is equipped with the erection column, the control panel passes through the erection column with under the cooperation of mounting hole and a fastener with mounting panel fixed connection.

Furthermore, the bottom surface of the shell is the radiator base, and the top surface of the shell is provided with a mask mounting groove for mounting a mask.

The utility model discloses a converter is through being connected with closed installation space with the bottom of radiator base conduct converter and with the casing, and simultaneously, be equipped with drive assembly and power component in the radiator main part, the heat dissipation demand has not only been satisfied, and installation drive assembly and power component that can be comparatively nimble, the installation has been simplified, and simultaneously, power component and drive component all locate in the radiator main part, make the inner space of converter compact, the whole volume of converter has been reduced, the space that has reduced the switch board occupies.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a three-dimensional structure diagram of a frequency converter provided in an embodiment of the present invention;

fig. 2 is an exploded view of a frequency converter according to an embodiment of the present invention;

fig. 3 is an assembly view of a heat sink assembly and a power assembly of a frequency converter according to an embodiment of the present invention;

fig. 4 is a structural diagram of a driving assembly of a frequency converter according to an embodiment of the present invention;

fig. 5 is an assembly view of a heat sink assembly and a drive assembly of a frequency converter according to an embodiment of the present invention;

fig. 6 is an exploded view of a heat sink assembly and a capacitor shield of a frequency converter according to an embodiment of the present invention;

fig. 7 is an assembly view of a heat sink assembly and a capacitor shield of a frequency converter according to an embodiment of the present invention;

fig. 8 is an assembly view of a radiator assembly and a control board of a frequency converter according to an embodiment of the present invention;

fig. 9 is a structural diagram of a housing of a frequency converter according to an embodiment of the present invention.

Reference numerals: 100. a frequency converter; 10. a housing; 11. a mask mounting groove; 12. a housing slot; 13. a third track structure; 14. an installation space; 20. a heat sink assembly; 21. a heat sink body; 211. a heat dissipation plate; 212. heat dissipation fins; 213. a first mounting surface; 214. a second mounting surface; 215. a guide post; 216. a first rail structure; 217. mounting a column; 218. mounting a plate; 219. a fixing frame; 22. a heat sink base; 23. a heat radiation fan; 24. a radiator clamping hook; 25. the cooling fan is clamped with a hook; 26. a thermally conductive insulating film; 27. a second rail structure; 30. a power component; 31. an IGBT single tube; 32. a rectifier bridge; 40. a drive assembly; 41. a drive plate; 411. a third mounting surface; 412. a guide hole; 413. a first card slot; 414. welding the hole; 42. a capacitor; 43. inputting a board; 44. an output plate; 45. a fixing hole; 50. a capacitive shield; 51. a capacitor placement space; 52. the protective cover is clamped with a hook; 53. a guide rail groove; 54. a fence structure; 60. a control panel; 61. mounting holes; 62. a guide structure; 63. buckling; 70. facial mask; 80. a fastener.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.

In addition, the directional terms of the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", and the like, refer to the attached drawings and the direction of the usage of the product. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention. Further, in the drawings, structures that are similar or identical are denoted by the same reference numerals.

Referring to fig. 1 to 9, fig. 1 is a three-dimensional structure diagram of a frequency converter 100 according to an embodiment of the present invention;

fig. 2 is an exploded view of a frequency converter 100 according to an embodiment of the present invention; fig. 3 is an assembly view of the heat sink assembly 20 and the power assembly 30 of the frequency converter 100 according to the embodiment of the present invention; fig. 4 is a structural diagram of a driving assembly 40 of the frequency converter 100 according to the embodiment of the present invention; fig. 5 is an assembly view of the heat sink assembly 20 and the drive assembly 40 of the frequency converter 100 according to the embodiment of the present invention; fig. 6 is an exploded view of the heat sink assembly 20 and the capacitor shield 50 of the frequency converter 100 according to the embodiment of the present invention; fig. 7 is an assembly view of the heat sink assembly 20 and the capacitor shield 50 of the frequency converter 100 according to the embodiment of the present invention; fig. 8 is an assembly view of the heat sink assembly 20 and the control board 60 of the inverter 100 according to the embodiment of the present invention; fig. 9 is a structural diagram of the casing 10 of the frequency converter 100 according to the embodiment of the present invention.

As shown in fig. 2, the frequency converter 100 includes a housing 10, a heat sink assembly 20, a power assembly 30, and a driving assembly 40; the housing 10 is provided with an installation space 14 having an opening; the heat sink assembly 20 includes a heat sink main body 21 and a heat sink base 22, the heat sink base 22 is disposed at the opening and blocks the opening, the heat sink main body 21 is disposed on the heat sink base 22 and located in the installation space 14; the power assembly 30 is attached to the heat sink body 21; the driving unit 40 is mounted on the heat sink main body 21 and disposed in the mounting space 14.

As shown in fig. 9, the housing 10 may be an irregular rectangle, and is provided with an installation space 14 having an opening, the direction indicated by the arrow in fig. 9 is the top of the housing 10, the opposite direction of the arrow is the bottom of the housing 10, the heat sink base 22 of the heat sink assembly 20 is assembled with the housing 10 from the bottom of the housing 10, and the installation space 14 in the housing 10 is a relatively closed space for installing the power assembly 30 and the driving assembly 40 after the assembly is completed. The heat sink main body 21 is arranged on the heat sink base 22, the power assembly 30 is arranged on the heat sink main body 21, so that heat dissipation of the power assembly 30 is facilitated, meanwhile, the driving assembly 40 is arranged on the heat sink main body 21 and arranged in the installation space 14, and finally the frequency converter 100 shown in fig. 1 is formed.

As a further example, the heat sink main body 21 includes a heat dissipation plate 211 and heat dissipation fins 212; the heat dissipation plate 211 is vertically disposed on the heat sink base 22, and includes a first mounting surface 213 and a second mounting surface 214 disposed opposite to each other, the heat dissipation fin 212 is vertically disposed on the first mounting surface 213, and the power module 30 is disposed on the second mounting surface 214.

As shown in fig. 3, the heat dissipation plate 211 is vertically disposed on the heat sink base 22, that is, the first mounting surface 213 and the second mounting surface 214 are both perpendicular to the heat sink base 22, as can be seen from fig. 2, the second mounting surface 214 faces the driving component 40, the heat dissipation fin 212 is disposed on the first mounting surface 213, the heat conductive insulating film 26 may be disposed on the second mounting surface 214 for mounting the IGBT single tube 31 in the power component 30, and meanwhile, the rectifier bridge 32 in the power component 30 may also be attached to the second mounting surface 214 for facilitating heat dissipation. The number of the IGBT single tubes 31 may be set according to the power of the frequency converter 100, and when the number of the IGBT single tubes 31 is larger, a groove may be formed at the top of the heat dissipation plate 211. The IGBT single tube 31 is arranged in the groove, and meanwhile, the groove can further save occupied space.

As a further embodiment, the driving assembly 40 includes a driving plate 41 and a capacitor 42; the driving board 41 is perpendicular to the heat sink base 22 and is mounted on the heat sink main body 21, and includes a third mounting surface 411, and the capacitor 42 is disposed on the third mounting surface 411, wherein the third mounting surface 411 faces the second mounting surface 214, and the capacitor 42 is located above the heat dissipation fins 212.

As shown in fig. 4, the driving assembly 40 may include a driving board 41, a capacitor 42, an input board 43 and an output board 44, as can be seen from fig. 2 and 5, the driving board 41 is mounted on the heat sink main body 21 perpendicularly to the heat sink base 22, the input board 43, the output board 44 and the capacitor 42 are all disposed on the third mounting surface 411 of the driving board 41, for example, the input board 43 and the output board 44 may be welded to the driving board 41 through a welding hole 414 disposed on the driving board 41, as shown in fig. 5. The driving plate 41 is generally large in volume and the heat sink main body 21 is small in volume, and the capacitor 42 can be provided on the driving plate 41 and above the heat sink main body 21 by further utilizing the space above the heat sink main body 21.

As a further embodiment, the second mounting surface 214 is provided with guide posts 215, and the driving plate 41 is provided with guide holes 412 engaged with the guide posts 215.

As shown in fig. 2, the driving board 41 is disposed opposite to the second mounting surface 214 of the heat dissipation plate 211, the second mounting surface 214 of the heat dissipation plate 211 may be provided with guide posts 215, and the driving board 41 may be correspondingly provided with guide holes 412, so that the mounting position of the driving board 41 is determined by the cooperation of the guide posts 215 and the guide holes 412, and the mounting process is simplified. Meanwhile, a through hole may be formed on the second mounting surface 214, a fixing hole 45 may be formed on the driving plate 41, and the driving plate 41 and the heat dissipation plate 211 may be fixedly connected by a fastening member 80 to improve stability, and the fastening member 80 may be a screw.

As a further embodiment, the capacitor protection cover 50 further includes a capacitor placing space 51 penetrating through the capacitor protection cover 50, and the capacitor protection cover 50 is covered on the driving board 41 to locate the capacitor 42 in the capacitor placing space 51.

Fig. 6 and 7 show an exploded view of the heat sink assembly 20 and the capacitor shield 50, and fig. 7 shows an assembled view of the heat sink assembly 20 and the capacitor shield 50. The capacitor protection cover 50 may be provided with a capacitor placing space 51 for placing the capacitors 42, and the number of the capacitor placing spaces 51 is determined by the number of the capacitors 42.

As a further embodiment, a mounting plate 218 is disposed on the top of the heat dissipation plate 211 perpendicular to the first mounting surface 213, the mounting plate 218 is provided with a first rail structure 216, and the capacitor protection cover 50 is provided with a rail groove 53 opposite to the first rail structure 216.

As shown in fig. 3, the mounting plate 218 is disposed on the top of the heat dissipation plate 211, the mounting plate 218 and the heat dissipation plate 211 may be integrally formed or separately connected, the first rail structure 216 is disposed on the mounting plate 218, and the rail groove 53 is disposed on the capacitor protection cover 50, so that the capacitor protection cover 50 can be assembled on the driving board 41 along the first rail structure 216, thereby further simplifying the assembly process.

As a further embodiment, the capacitor protection cover 50 is provided with a protection cover hook 52, the drive plate 41 and the mounting plate 218 are both provided with a first clamping groove 413, and the capacitor protection cover 50 is respectively and fixedly connected with the drive plate 41 and the mounting plate 218 through the matching of the protection cover hook 52 and the first clamping groove 413.

The capacitor protection cover 50 can be clamped on the mounting plate 218 and the driving plate 41 in a hook clamping groove. As shown in fig. 6, a first slot 413 may be disposed on the driving plate 41 and the mounting plate 218, a shield hook 52 may be disposed on the capacitor shield 50, and the capacitor shield 50 is hooked to the first slot 413, so as to be fixedly connected to the driving plate 41 and the mounting plate 218, respectively.

As a further embodiment, a shielding structure 54 is disposed on a side of the capacitance protective cover 50 close to the driving board 41, and forms an air channel with the first mounting surface 213, wherein a heat dissipation fan 23 is further disposed at one end of the heat sink base 22.

As shown in fig. 5, the capacitor protection cover 50 may be provided with a shielding structure 54 at the bottom thereof in addition to protecting the capacitor 42, the shielding structure 54 and the first mounting surface 213 form an air channel, the heat dissipation fins 212 are located in the air channel, meanwhile, one end of the heat sink base 22 may be provided with a fixing frame 219, the fixing frame 219 may be integrally formed with the heat dissipation plate 213 and the mounting plate 218, or may be separately provided, the fixing frame 219 is provided with the heat dissipation fan 23, and the heat dissipation fan 23 is used for dissipating heat of the heat dissipation fins 212 and other structures. The heat dissipation fan 23 may be provided with a heat dissipation fan hook 25, and connected to the fixing frame 219 through the heat dissipation fan hook 25, and the enclosure structure 54 may include a plurality of baffles.

As a further embodiment, the heat sink further includes a control board 60, the control board 60 is disposed on one end of the driving board 41 far away from the heat sink base 22, a mounting hole 61 is disposed on the control board 60, a mounting post 217 is disposed on the mounting plate 218, and the control board 60 is fixedly connected to the mounting plate 218 through cooperation of the mounting post 217, the mounting hole 61 and a fastener 80.

Wherein the control board 60 is disposed at the top of the installation space 14, i.e., near the top of the housing 10, as shown in fig. 8. A mounting post 217 may be disposed on the mounting plate 218, the mounting post 217 has a through hole, and a mounting hole 61 is disposed at a position of the control panel 60 opposite to the through hole of the mounting post 217, so that the control panel 60 and the mounting post 217 are fixedly connected by a fastener 80 penetrating through the through hole and the mounting hole 61 without disposing other fixing structures, thereby further simplifying the structure of the frequency converter 100 and saving space. Additionally, as shown in FIG. 3, a second rail structure 27 may be provided on the mounting post 217, the second rail structure 27 assisting in securing the drive assembly 40. The control board 60 may further have a guide structure 62 for ensuring that the signal pins can be assembled in place, and the guide structure 62 may include a circular guide, a square guide, and other guiding structures. In order to improve the stability of the control board 60, the capacitor protection cover 50 may be fixed by a fastener 63.

As a further embodiment, the bottom surface of the housing 10 is the heat sink base 22, and the top surface of the housing 10 is provided with a surface film mounting groove 11 for mounting the surface film 70.

The mask 70 integrates product function information and is installed at the mask installation groove 11 of the housing 10, and meanwhile, the control board 60 is located at the top of the housing 10, and a plurality of through holes can be further formed at the top of the housing 10, so that the mask is convenient to connect with other devices. As shown in fig. 9, the housing 10 may be provided with a housing slot 12 and a third rail structure 13, and the mounting plate 218 may be provided with a heat sink hook 24, when assembling, the heat sink body 21 and the heat sink base are assembled with the housing 10 along the third rail structure 13, and are clamped with the housing slot 12 through the heat sink hook 24, so as to complete the fixing of the housing 10 and the heat sink body 21.

The utility model discloses a converter is through regarding the radiator base as the bottom of converter and forming an inclosed installation space with the casing, locate power component and drive assembly respectively in the radiator main part and on the radiator base again to the structure of converter has further been compacteed, when having satisfied the heat dissipation demand, has simplified the structure of converter, has reduced the volume of converter.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A frequency converter, comprising:

a housing provided with an installation space having an opening;

the radiator assembly comprises a radiator main body and a radiator base, the radiator base is arranged at the opening and blocks the opening, and the radiator main body is arranged on the radiator base and is positioned in the mounting space;

the power assembly is attached to the radiator main body; and

and the driving assembly is assembled on the radiator main body and is arranged in the mounting space.

2. The frequency converter according to claim 1, wherein the heat sink body includes a heat dissipation plate and heat dissipation fins;

the heat dissipation plate is vertically arranged on the radiator base and comprises a first installation surface and a second installation surface which are oppositely arranged, the heat dissipation fin is vertically arranged on the first installation surface, and the power assembly is arranged on the second installation surface.

3. The frequency converter of claim 2, wherein said drive assembly includes a drive plate and a capacitor;

the driving board is perpendicular to the radiator base and assembled on the radiator main body, and comprises a third installation surface, the capacitor is arranged on the third installation surface, the third installation surface faces the second installation surface, and the capacitor is located above the radiating fins.

4. The frequency converter according to claim 3, wherein the second mounting surface is provided with guide posts, and the driving plate is provided with guide holes matched with the guide posts.

5. The frequency converter of claim 3, further comprising a capacitor shield, said capacitor shield defining a capacitor receiving space extending through said capacitor shield, said capacitor shield being mounted on said drive plate such that said capacitor is positioned within said capacitor receiving space.

6. The frequency converter according to claim 5, wherein a mounting plate is provided on a top of said heat dissipating plate perpendicular to said first mounting surface, said mounting plate being provided with a first rail structure, said capacitor shield being provided with rail grooves opposite said first rail structure.

7. The frequency converter according to claim 6, wherein the capacitor shield is provided with a shield hook, the driving plate and the mounting plate are provided with a first slot, and the capacitor shield is fixedly connected to the driving plate and the mounting plate respectively through the engagement of the shield hook and the first slot.

8. The frequency converter according to claim 6, wherein a side of said capacitor shield adjacent to said driving plate is provided with a baffle structure and forms an air channel with said first mounting surface, and wherein a heat dissipating fan is further provided at one end of said heat sink base.

9. The frequency converter according to claim 6, further comprising a control board, wherein the control board is disposed on an end of the driving board away from the heat sink base, and the control board is provided with a mounting hole, the mounting board is provided with a mounting post, and the control board is fixedly connected to the mounting board through the mounting post and the mounting hole and a fastener.

10. The frequency converter according to claim 9, wherein the bottom surface of the housing is the heat sink base, and the top surface of the housing is provided with a mask mounting groove for mounting a mask.

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