CN211151803U

CN211151803U - Novel frequency converter

Info

Publication number: CN211151803U
Application number: CN202020071450.0U
Authority: CN
Inventors: 平燕茹
Original assignee: Quzhou Laiyingge Electronic Technology Co ltd
Current assignee: Quzhou Laiyingge Electronic Technology Co ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-07-31
Anticipated expiration: 2030-01-14

Abstract

The utility model belongs to the technical field of the converter technique and specifically relates to a novel frequency converter is related to. A novel frequency converter is characterized in that: the driving board is characterized by comprising a driving board, a radiator, a bottom shell, a fan and an IGBT, wherein the lower part of the driving board is composed of four cylindrical structures, the upper part of the driving board is of a cuboid structure, the lower part of the driving board is the upper left corner arranged in the bottom shell, and the upper part of the driving board penetrates through the wall of the bottom shell and is inserted into the top of the bottom shell; the bottom shell is internally and fixedly connected with a radiator, the top of the radiator is of a C-shaped panel structure, the radiator is just filled in the bottom shell with the lower part of the driving plate, and the upper part of the radiator penetrates through the wall of the top of the bottom shell and is fixed on the bottom shell; the fan is arranged on the inner wall of the right side in the bottom shell; IGBT lays on drain pan bottom outer wall the utility model discloses the practicality is strong, easily promotes.

Description

Novel frequency converter

Technical Field

The utility model belongs to the technical field of the converter technique and specifically relates to a novel frequency converter is related to.

Background

The frequency converter is mainly used for controlling the electric power work of the alternating current motor, and the load is adjusted by changing the power supply frequency, so that the effects of reducing power consumption, reducing loss, prolonging the service life of equipment and the like are achieved;

the prior patent number is CN20728217U, which is named as a simple frequency converter, and has the following problems:

the top of the radiator is of an inverted L-shaped panel structure, the structure is fixed at three points, and the stability of the radiator arranged on the bottom shell is poor due to structural problems;

secondly, the IGBT is laid on the outer wall of the bottom shell, and is easy to have soft damage in the process of assembling after welding, so that the phenomenon of instability exists when a product is used;

thirdly, the existing frequency converter still exists, and a lot of dust can be remained on the exhaust fan for a long time, so that the exhaust fan is difficult to clean, and the heat dissipation effect is reduced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a power capacitor falls and uses division board.

The technical scheme of the utility model is realized like this: a novel frequency converter comprises a driving board, a radiator, a bottom shell and an IGBT, wherein the lower part of the driving board is composed of four cylindrical structures, the upper part of the driving board is of a cuboid structure, the lower part of the driving board is the upper left corner arranged in the bottom shell, and the upper part of the driving board penetrates through the wall of the bottom shell and is inserted into the top of the bottom shell; the method is characterized in that: the bottom shell is internally and fixedly connected with a radiator, the top of the radiator is of a C-shaped panel structure, the radiator is just filled in the bottom shell with the lower part of the driving plate, and the upper part of the radiator penetrates through the wall of the top of the bottom shell and is fixed on the bottom shell; the IGBT is laid on the inner wall of the bottom shell; the right side inner wall of the bottom shell is provided with a mounting opening, and an air exhaust assembly convenient to clean is arranged in the mounting opening.

Preferably: and the IGBT and the plug-in components on the drive board are spot-welded to connect the IGBT and the drive board in the air duct, and the IGBT and the drive board are completely isolated from each other.

Preferably: the radiator and the driving plate are isolated from each other through plastic shells.

Preferably: the exhaust assembly comprises an installation base with a through hole on the bottom surface, an installation rod, an inner sleeve ring, an outer sleeve ring, a motor, a plurality of fan blades, a pressing plate and a cover plate; the mounting base is fixedly arranged in the mounting port; the motor is arranged in the middle of the bottom plate of the mounting base, and the output end of the motor penetrates into the inner cavity of the mounting base; one end of the mounting rod is fixedly connected with the output end of the motor; the inner lantern ring is fixedly sleeved on the mounting rod through an upper flange and a lower flange; the outer sleeve ring is sleeved on the inner sleeve ring and is detachably connected with the inner sleeve ring through a bolt; the outer collar is circumferentially provided with a plurality of mounting grooves which penetrate through the outer side wall and the upper surface; one end of the fan blade is detachably clamped in the mounting groove; the pressing plate cover is arranged on the upper surface of the outer sleeve ring and is detachably arranged on the outer sleeve ring through screws; the cover plate can be detachably mounted on the mounting base through screws.

Preferably: the outer wall of the inner lantern ring is provided with a limiting groove, and the inner wall of the outer lantern ring is provided with a limiting column matched with the limiting groove.

Compared with the prior art, the utility model discloses the beneficial effect who brings does:

1. secondly, laying the IGBT on the inner wall of the bottom shell, so that the contact of the IGBT can be protected, the IGBT is prevented from being damaged, the phenomenon of soft damage in the process of assembling after welding is finished is prevented, and the stability of a product is improved;

2. the exhaust assembly is arranged through a traditional exhauster, fan blades and an outer sleeve ring on the exhaust assembly can be detached, so that the exhaust assembly is convenient to incline, and each fan blade can be detached independently so as to be convenient to clean, prevent dust accumulation and reduce exhaust and heat dissipation effects.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

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

FIG. 2 is a schematic structural diagram of an IGBT;

FIG. 3 is a schematic view of the internal structure;

FIG. 4 is a schematic structural view of a C-shaped panel;

FIG. 5 is a schematic view of the structure of the exhaust assembly;

fig. 6 is a schematic structural view of the inner sleeve and the outer sleeve.

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 only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-4, the utility model discloses a novel frequency converter, in the embodiment of the utility model, the drive plate 1, the radiator 2, the bottom shell 3 and the IGBT5, the lower part of the drive plate 1 is composed of four cylindrical structures, the upper part of the drive plate 1 is a cuboid structure, the lower part of the drive plate 1 is the upper left corner internally arranged in the bottom shell 3, and the upper part of the drive plate 1 passes through the wall of the bottom shell 3 and is inserted at the top of the bottom shell 3; the radiator 2 is fixedly connected inside the bottom shell 3, the top of the radiator 2 is of a C-shaped panel 6 structure, the bottom shell 3 is filled with the driving board 1, and the upper part of the radiator 2 penetrates through the wall of the top of the bottom shell 3 and is fixed on the bottom shell 3; the IGBT5 is laid on the inner wall of the bottom shell 3; the right side inner wall of the bottom shell 3 is provided with a mounting opening, and an air exhaust assembly 4 is mounted in the mounting opening.

Secondly, laying the IGBT on the inner wall of the bottom shell, so that the contact of the IGBT can be protected, the IGBT is prevented from being damaged, the phenomenon of soft damage in the process of assembling after welding is finished is prevented, and the stability of a product is improved;

the utility model discloses in the specific embodiment, IGBT5 is connected with plug-in components and parts spot welding on the drive plate 1, improves the structural strength of product solder joint, improve equipment's life.

The utility model discloses in the specific embodiment, wherein, 2 drive plate 1 of radiator are kept apart by the plastic casing completely, can increase drive plate 1's operating efficiency, reduce radiator 2 to drive plate 1's influence.

The utility model discloses in the embodiment, wherein, IGBT5 and drive plate 1 set up in the wind channel, and keep apart each other completely between IGBT5 and the drive plate 1, improve the life-span and the stability of IGBT5 and other components and parts, make the amount of wind of fan 4 act on radiator 2 completely, improve fan 4's utilization ratio.

Example 2 differs from example 1 in that

As shown in fig. 5-6, in the embodiment of the present invention, the exhaust assembly 4 includes a mounting base 41 having a through hole on the bottom surface, a mounting rod 42, an inner sleeve ring 43, an outer sleeve ring 44, a motor 45, a plurality of fan blades 46, a pressing plate 47, and a cover plate 48; the mounting base 41 is fixedly mounted in the mounting port; the motor 45 is arranged in the middle of the bottom plate of the mounting base 41, and the output end of the motor penetrates into the inner cavity of the mounting base 41; one end of the mounting rod 42 is fixedly connected with the output end of the motor 45; the inner lantern ring 43 is fixedly sleeved on the mounting rod 42 through an upper flange 6 and a lower flange 7; the outer collar 44 is sleeved on the inner collar 43 and detachably connected with the inner collar 43 through bolts; the outer collar 44 is provided with a plurality of mounting grooves which penetrate through the outer side wall and the upper surface along the circumferential direction; one end of the fan blade 46 is detachably clamped in the mounting groove; the pressure plate 48 covers the upper surface of the outer sleeve 44 and is detachably mounted on the outer sleeve 44 through screws; the cover plate 48 is detachably mounted on the mounting base 41 by screws.

In the specific embodiment of the present invention, the outer wall of the inner collar 43 has a limiting groove 8, and the inner wall of the outer collar 44 has a limiting post 9 adapted to the limiting groove 8.

Through adopting above-mentioned technical scheme, set to the subassembly of airing exhaust through traditional emission machine to flabellum, outer lantern ring on the subassembly of airing exhaust all can be dismantled, are convenient for incline, and the flabellum is that each flabellum all can be dismantled alone, so that wash, prevent the dust accumulation, lead to airing exhaust and radiating effect decline.

It should be noted that: the longitudinal section of the mounting groove is a T-shaped groove, one end of the fan blade, which is used for mounting, is provided with a connector matched with the T-shaped groove, the bottom of the fan blade is limited with the bottom of the groove, and the top of the fan blade is extruded by a pressure plate, so that the fan blade cannot run out;

in addition, the tight turning of upper and lower flange is opposite with the turning of motor shaft, therefore, motor shaft is in the rotation process, and the phenomenon that the flange is not hard up can not appear.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel frequency converter comprises a driving board, a radiator, a bottom shell and an IGBT, wherein the lower part of the driving board is composed of four cylindrical structures, the upper part of the driving board is of a cuboid structure, the lower part of the driving board is the upper left corner arranged in the bottom shell, and the upper part of the driving board penetrates through the wall of the bottom shell and is inserted into the top of the bottom shell; the method is characterized in that: the bottom shell is internally and fixedly connected with a radiator, the top of the radiator is of a C-shaped panel structure, the radiator is just filled in the bottom shell with the lower part of the driving plate, and the upper part of the radiator penetrates through the wall of the top of the bottom shell and is fixed on the bottom shell; the IGBT is laid on the bottom of the bottom shell; the right side inner wall of the bottom shell is provided with a mounting opening, and an air exhaust assembly convenient to clean is arranged in the mounting opening.

2. The novel frequency converter according to claim 1, characterized in that: and the IGBT and the plug-in components on the drive board are spot-welded to connect the IGBT and the drive board in the air duct, and the IGBT and the drive board are completely isolated from each other.

3. The novel frequency converter according to claim 1, characterized in that: the radiator and the driving plate are isolated from each other through plastic shells.

4. The novel frequency converter according to claim 1, characterized in that: the exhaust assembly comprises an installation base with a through hole on the bottom surface, an installation rod, an inner sleeve ring, an outer sleeve ring, a motor, a plurality of fan blades, a pressing plate and a cover plate; the mounting base is fixedly arranged in the mounting port; the motor is arranged in the middle of the bottom plate of the mounting base, and the output end of the motor penetrates into the inner cavity of the mounting base; one end of the mounting rod is fixedly connected with the output end of the motor; the inner lantern ring is fixedly sleeved on the mounting rod through an upper flange and a lower flange; the outer sleeve ring is sleeved on the inner sleeve ring and is detachably connected with the inner sleeve ring through a bolt; the outer collar is circumferentially provided with a plurality of mounting grooves which penetrate through the outer side wall and the upper surface; one end of the fan blade is detachably clamped in the mounting groove; the pressing plate cover is arranged on the upper surface of the outer sleeve ring and is detachably arranged on the outer sleeve ring through screws; the cover plate can be detachably mounted on the mounting base through screws.

5. The novel frequency converter according to claim 4, characterized in that: the outer wall of the inner lantern ring is provided with a limiting groove, and the inner wall of the outer lantern ring is provided with a limiting column matched with the limiting groove.