CN215682106U

CN215682106U - Frequency converter

Info

Publication number: CN215682106U
Application number: CN202121382553.XU
Authority: CN
Inventors: 操军; 杨志洵; 张晓光; 涂从欢
Original assignee: Wuhan Sine Electric Technology Co ltd
Current assignee: Wuhan Sine Electric Technology Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-01-28
Anticipated expiration: 2031-06-21

Abstract

The utility model relates to a frequency converter, which comprises a driving board, a radiator, a fan and a shell, wherein the driving board is arranged on the radiator; the shell comprises a bottom plate, a bottom frame, a middle frame and an upper cover which are sequentially stacked from bottom to top, the drive plate is installed between the bottom frame and the middle frame, the radiator is installed at the lower end of the drive plate and contained inside the bottom frame, ventilation holes are formed in two sides of the bottom frame, the fan is installed on one side of the radiator, and the middle frame is used for installing electrical components electrically connected with the drive plate.

Description

Frequency converter

Technical Field

The utility model relates to the technical field of low-power frequency converter products, in particular to a frequency converter.

Background

The currently used frequency converter contains a large number of power devices, such as IGBTs, bus capacitors, main power terminals, etc., so that the influence between various electrical components is comprehensively considered when the structure design is performed. The structure of the frequency converter is complex, the frequency converter is inconvenient to install and disassemble, the cost is increased, and certain influence is also exerted on the market competitiveness of products.

SUMMERY OF THE UTILITY MODEL

Based on the above description, the utility model provides a frequency converter to solve the technical problems of complex structure, inconvenience in installation and disassembly of the frequency converter in the prior art.

The technical scheme for solving the technical problems is as follows:

a frequency converter comprises a driving plate, a radiator, a fan and a shell; the shell comprises a bottom plate, a bottom frame, a middle frame and an upper cover which are sequentially stacked from bottom to top, the drive plate is installed between the bottom frame and the middle frame, the radiator is installed at the lower end of the drive plate and contained inside the bottom frame, ventilation holes are formed in two sides of the bottom frame, the fan is installed on one side of the radiator, and the middle frame is used for installing electrical equipment electrically connected with the drive plate.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

the application provides a converter, its shell includes bottom plate, underframe, center and the upper cover of supreme range upon range of setting gradually down to with reasonable setting in the suitable position of shell of drive plate, radiator and fan, make complete machine compact structure, the overall dimension is little, the assembly between each part is more simple.

On the basis of the technical scheme, the utility model can be further improved as follows.

Furthermore, the shell also comprises a fan cover, and the fan cover is detachably mounted on one side of the bottom frame corresponding to the fan.

Furthermore, the both sides of fan guard are formed with movable buckle, movable buckle includes joint plate and linking arm, the linking arm connect in the both sides of joint plate, fan guard's both sides middle part is formed with keeps away the groove, the joint plate corresponds keep away the groove setting just the both ends of linking arm with keep away the both sides wall in groove and correspond and be connected, the outside of joint plate is formed with the joint arch, one side of underframe is formed with the side mounting groove that is used for installing the fan, the outside salient formation of both sides wall in side mounting groove with the protruding spacing flange of spacing complex of joint.

Furthermore, the position of the outer side of the clamping plate far away from the fan is provided with an anti-slip convex rib.

Furthermore, the cross section of the upper cover is of a stepped structure, one side of the upper cover and the lower end face of the middle frame are enclosed to form a wire passing port, a wire passing plate is detachably mounted at the wire passing port, and a plurality of wire passing holes are uniformly formed in the lower portion of the wire passing plate.

Furthermore, the two ends of the wire passing plate are provided with vertically arranged bolt rods, and slots matched with the bolt rods are formed in the positions, corresponding to the wire passing openings, of the middle frame.

Furthermore, the bottom frame and the middle frame, the middle frame and the upper cover are clamped and fixed.

Furthermore, a plurality of positioning convex hulls are formed on the bottom plate, the bottom frame corresponds to the positioning convex hulls and is provided with a plurality of mounting columns, mounting holes are formed in the end faces of the mounting columns, and the bottom plate is connected with the bottom frame through countersunk screws.

Furthermore, two sides of the bottom plate are bent upwards to form flanges, and the flanges are arranged in the lower portion of the bottom frame.

Furthermore, the electrical component comprises a keyboard and a control board, the control board is connected with the drive board, the keyboard is electrically connected with the control board, and the operating surface of the keyboard is located at the upper end of the middle frame.

Drawings

Fig. 1 is an exploded schematic view of a frequency converter according to an embodiment of the present invention;

FIG. 2 is a schematic view of the assembled external structure of FIG. 1;

FIG. 3 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 4 is a schematic side view of the structure of FIG. 2;

FIG. 5 is a schematic cross-sectional view taken along line F-F of FIG. 4;

FIG. 6 is an exploded view of a portion of the structure of FIG. 2;

FIG. 7 is a schematic view of a fan guard configuration.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a drive plate; 2. a heat sink; 3. a fan; 4. a housing; 11. a control panel; 12. a keyboard; 41. a base plate; 42. a bottom frame; 43. a middle frame; 44. an upper cover; 45. a fan guard; 46. a wire passing plate; 451. a movable buckle; 452. a clamping and connecting plate; 453. a connecting arm; 454. clamping the bulges; 455. anti-slip ribs; 45a, avoiding grooves; 42a, side mounting grooves; 421. limiting and blocking edges; 46a, a wire passing hole; 461. a latch rod; 43a, a slot; 411. positioning the convex hull; 422. and (6) mounting the column.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

It will be understood that spatial relationship terms, such as "under", "below", "beneath", "below", "over", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary terms "under" and "under" can encompass both an orientation of above and below. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. The "connection" in the following embodiments is understood as "electrical connection", "communication connection", or the like if the connected circuits, modules, units, or the like have electrical signals or data transmission therebetween.

As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

As shown in fig. 1 to 7, an embodiment of the present invention provides a frequency converter, including a driving board 1, a heat sink 2, a fan 3, and a housing 4.

The housing 4 includes a bottom plate 41, a bottom frame 42, a middle frame 43 and an upper cover 44 stacked in sequence from bottom to top.

The driving board 1 is installed between the bottom frame 42 and the middle frame 43, the heat sink 2 is installed at the lower end of the driving board 1 and is accommodated in the bottom frame 42, ventilation holes 42a are formed at both sides of the bottom frame 42, and the fan 3 is installed at one side of the heat sink 2.

In the frequency converter provided by the embodiment, the housing 4 comprises the bottom plate 41, the bottom frame 42, the middle frame 43 and the upper cover 44 which are sequentially stacked from bottom to top, and the driving plate 1, the radiator 2 and the fan 3 are reasonably arranged at appropriate positions of the housing 4, so that the whole structure is compact, the overall size is small, and the assembly among all parts is simpler.

In order to ensure the stable installation of the fan 3, the housing 4 further comprises a fan cover 45, and the fan cover 45 is detachably installed on one side of the bottom frame 42 corresponding to the fan 3.

In this embodiment, the detachable connection is preferably: the fan cover 45 is provided with movable buckles 451 at two sides thereof, each movable buckle 451 comprises a clamping plate 452 and a connecting arm 453, the connecting arm 453 is connected at two sides of the clamping plate 452, a spacing groove 45a is formed at the middle part of two sides of the fan cover 45, the clamping plate 452 is arranged corresponding to the spacing groove 45a, two ends of the connecting arm 453 are correspondingly connected with two side walls of the spacing groove 45a, a clamping protrusion 454 is formed at the outer side of the clamping plate 452, a side mounting groove 42a for mounting the fan 3 is formed at one side of the bottom frame 42, and a limiting blocking edge 421 which is in limiting fit with the clamping protrusion 454 is formed at two side walls of the side mounting groove 42a in a protruding manner.

When the fan 3 is installed in the side installation groove 42a, the fan cover 45 can be covered on the outer side of the side installation groove 42a, the specific installation mode is that the movable buckles 451 on the two sides are arranged corresponding to the two sides of the side installation groove 42a, the clamping protrusions 454 are ensured to correspond to the limiting blocking edge 421, the fan cover 45 is integrally pressed inwards, the clamping protrusions 454 push the clamping plate 452 to contract towards the inner side of the avoiding groove 45a under the extrusion of the limiting blocking edge 421, the connecting arm 453 generates elastic deformation force, when the clamping protrusions 454 move to the inner side of the limiting blocking edge 421, the connecting arm 453 restores to the original state, the clamping plate 452 is pushed outwards, and the limiting blocking edge 421 limits the clamping protrusions 454; when the fan 3 breaks down, the fan 3 needs to be taken out and replaced, in this embodiment, the clamping plates 452 on the two sides only need to be manually pressed to enable the clamping protrusions 454 to be separated from the limiting blocking edges 421, the fan cover can be easily taken out, and the structural design not only facilitates the installation of the fan 3, but also greatly simplifies the maintenance and dismounting processes of the fan 3.

Preferably, in order to ensure that the engagement plate 452 is not slipped when manually pressed, a slip prevention protrusion 455 is formed on the outer side of the engagement plate 452 away from the fan 3.

In the preferred embodiment of the present application, the cross section of the upper cover 44 is a stepped structure, which can effectively enhance the strength of the upper cover 44.

One side of the upper cover 44 and the lower end surface of the middle frame 43 enclose to form a wire passing port 44a, a wire passing plate 46 is detachably mounted at the wire passing port 44a, and a plurality of wire passing holes 46a are uniformly formed at the lower part of the wire passing plate 46.

In order to facilitate the installation and the detachment of the wire passing plate 46, vertically arranged latch rods 461 are formed at both ends of the wire passing plate 46, and slots 43a matched with the latch rods 461 are formed at positions of the middle frame 43 corresponding to the wire passing openings 44 a.

In the embodiment of this application, in order to facilitate underframe 42 with center 43, center 43 and upper cover 44's loading and unloading, underframe 42 with center 43 with all adopt the buckle joint to fix between the upper cover 44, when the installation, only need to correspond the pressing chucking to the buckle structure of usefulness can.

In order to facilitate the positioning and installation of the bottom plate 41 and the bottom frame 42, a plurality of positioning convex hulls 411 are formed on the bottom plate 41, a plurality of mounting columns 422 are formed on the bottom frame 42 corresponding to the positioning convex hulls 411, mounting holes are formed on end surfaces of the mounting columns 422, and the bottom plate 41 and the bottom frame 42 are fixedly connected through countersunk screws.

In order to ensure the structural stability of the bottom plate 41, two sides of the bottom plate 41 are bent upwards to form flanges 412, and the flanges 412 are embedded in the lower portion of the bottom frame 42.

The middle frame 43 may also be used to mount an electrical component electrically connected to the driving board 1, specifically, the electrical component includes a keyboard 12 and a control board 11, the control board 11 is connected to the driving board 1, the keyboard 12 is electrically connected to the control board 11, and an operation surface of the keyboard 12 is located at an upper end of the middle frame 43, so as to facilitate a worker to control the frequency converter.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A frequency converter is characterized by comprising a driving board, a radiator, a fan and a shell; the shell comprises a bottom plate, a bottom frame, a middle frame and an upper cover which are sequentially stacked from bottom to top, the drive plate is installed between the bottom frame and the middle frame, the radiator is installed at the lower end of the drive plate and contained inside the bottom frame, ventilation holes are formed in two sides of the bottom frame, the fan is installed on one side of the radiator, and the middle frame is used for installing electrical equipment electrically connected with the drive plate.

2. The frequency converter of claim 1, wherein the housing further comprises a fan guard removably mounted to a side of the bottom frame corresponding to the fan.

3. The frequency converter according to claim 2, wherein movable buckles are formed on two sides of the fan cover, each movable buckle comprises a clamping plate and a connecting arm, the connecting arms are connected to two sides of the clamping plate, a spacing groove is formed in the middle of each of the two sides of the fan cover, the clamping plate is arranged corresponding to the spacing groove, two ends of each connecting arm are correspondingly connected with two side walls of the spacing groove, a clamping protrusion is formed on the outer side of the clamping plate, a side mounting groove for mounting a fan is formed on one side of the bottom frame, and a limiting retaining edge in limiting fit with the clamping protrusion is formed on each of the two side walls of the side mounting groove in a protruding mode.

4. The frequency converter according to claim 3, wherein an outer side of the engagement plate is formed with an anti-slip rib at a position away from the fan.

5. The frequency converter according to claim 1, wherein the cross section of the upper cover is a stepped structure, one side of the upper cover and the lower end surface of the middle frame enclose to form a wire passing port, a wire passing plate is detachably mounted at the wire passing port, and a plurality of wire passing holes are uniformly formed at the lower part of the wire passing plate.

6. The frequency converter according to claim 5, wherein vertically arranged bolt rods are formed at both ends of the wire passing plate, and slots matched with the bolt rods are formed at positions of the middle frame corresponding to the wire passing openings.

7. The frequency converter according to claim 1, wherein the bottom frame and the middle frame, and the middle frame and the upper cover are fixed in a clamping manner.

8. The frequency converter according to claim 1, wherein a plurality of positioning convex hulls are formed on the bottom plate, a plurality of mounting posts are formed on the bottom frame corresponding to the positioning convex hulls, mounting holes are formed on end surfaces of the mounting posts, and the bottom plate is connected with the bottom frame through countersunk screws.

9. The frequency converter according to claim 1, wherein both sides of the bottom plate are bent upwards to form flanges, and the flanges are arranged in the lower part of the bottom frame.

10. The frequency converter according to claim 1, wherein the electrical components comprise a keyboard and a control board, the control board is connected with the driving board, the keyboard is electrically connected with the control board, and an operation surface of the keyboard is positioned at the upper end of the middle frame.