CN210273818U

CN210273818U - High-performance variable frequency driver

Info

Publication number: CN210273818U
Application number: CN201921622176.5U
Authority: CN
Inventors: 邱嘉龙; 何祖辉; 李志军
Original assignee: Zhejiang Tianyi Semiconductor Technology Co ltd
Current assignee: Zhejiang Tianyi Semiconductor Technology Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-04-07
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a high-performance variable frequency driver, which comprises a shell and a variable frequency driver body, wherein the shell is internally provided with a group of first cavities and two groups of second cavities, the variable frequency driver body is fixed in the first cavities through bolts, one side of the variable frequency driver body, which is close to a heating element, is provided with radiating fins, spring dampers are respectively arranged between the top part and the bottom part of the variable frequency driver body and the inner wall of the shell, two groups of second cavities are respectively clamped with a fan through two groups of silicon rubber blocks, an elastic rubber gasket is glued between the silicon rubber blocks and the fan, an air inlet channel is respectively arranged on the two groups of second cavities, which are close to the fan, a clapboard is welded between the two groups of second cavities, radiating channels are respectively formed between the two groups of second cavities and the clapboard, and the heat on the surfaces of the radiating fins can be rapidly taken away through convection, and has good absorption treatment effect on vibration and noise during the operation of equipment.

Description

High-performance variable frequency driver

Technical Field

The utility model relates to a frequency conversion driver technical field specifically is a high performance frequency conversion driver.

Background

The frequency converter is an electric control device which applies a frequency conversion technology and a microelectronic technology and controls an alternating current motor by changing the frequency mode of a working power supply of the motor. The frequency converter mainly comprises a rectifying unit (alternating current to direct current), a filtering unit, an inverting unit (direct current to alternating current), a braking unit, a driving unit, a detection unit microprocessing unit and the like, and has a plurality of protection functions, such as overcurrent, overvoltage, overload protection and the like.

Often have heat dissipation mechanism in frequency conversion driver's the equipment, nevertheless, just blow with the fan to frequency conversion driver's heating element with the purpose of reaching the heat dissipation simply, efficiency is lower, and when the fan used for a long time, can produce noise and vibration, and current frequency conversion driver equipment lacks the measure of reply.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high performance variable frequency drive ware forms the convection current through two sets of fans and can takes away the heat on radiating fin surface rapidly, and vibration and noise when moving equipment all have fine absorption treatment to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-performance variable frequency driver comprises a shell and a variable frequency driver body, wherein a group of first cavities and two groups of second cavities are formed in the shell, the variable frequency driver body is fixed in the first cavities through bolts, heat radiating fins are arranged on one side, close to a heating element, of the variable frequency driver body, spring dampers are arranged between the top and the bottom of the variable frequency driver body and the inner wall of the shell, fans are clamped in the two groups of second cavities through two groups of silicon rubber blocks, elastic rubber gaskets are glued between the silicon rubber blocks and the fans, air inlet channels are formed in the two groups of second cavities and close to the fans in a penetrating mode, partition plates are welded between the two groups of second cavities, heat radiating channels are formed between the two groups of second cavities and the partition plates, and the shell is respectively communicated with the two groups of heat radiating channels through two groups of heat radiating holes, and two groups of silicon rubber lining plates are embedded in one side of the shell close to the second cavity.

Preferably, four groups of support legs are welded at the bottom of the shell and arranged at four corners of the bottom of the shell.

Preferably, the bottom ends of the support legs are all designed to be frustum-shaped, and the bottom of each support leg is connected with a first rubber sleeve in an adhesive mode.

Preferably, both sets of the intake passages are obliquely arranged.

Preferably, dust filter nets are embedded in the two groups of air inlet channels and the two groups of heat dissipation channels.

Preferably, the handles are symmetrically welded to two sides of the outer wall of the shell, and the handles are both connected with the second rubber sleeves in an adhesive mode.

Compared with the prior art, the beneficial effects of the utility model are that:

two sets of fans are blown out to flow to the radiating fins and are blown away, convection is formed at the contact positions of the two sets of radiating channels, heat on the radiating fins is taken away and is discharged from the radiating holes through the radiating channels, the vibration influence of the variable frequency driver body during operation can be reduced by the two sets of spring dampers, and vibration energy during operation of the fans is transmitted into the shell after being absorbed by the elastic rubber gaskets and the silicon rubber blocks at two ends and is absorbed by the silicon rubber lining plates, so that the aim of reducing the vibration influence of the operation of the fans on the device is achieved, and generated noise is weakened to a certain extent.

Drawings

FIG. 1 is a front sectional view of the present invention;

FIG. 2 is a schematic view of the structure of the silicone rubber block of the present invention;

fig. 3 is a schematic front view of the structure of the present invention.

In the figure: 1. a housing; 2. a variable frequency drive body; 3. a first cavity; 4. a second cavity; 5. a bolt; 6. a heat dissipating fin; 7. a silicone rubber block; 8. a fan; 9. an elastic rubber gasket; 10. an air intake passage; 11. a partition plate; 12. a heat dissipation channel; 13. heat dissipation holes; 14. a silicon rubber lining plate; 15. a spring damper; 16. a support leg; 17. a first rubber sleeve; 18. a dust filter screen; 19. a handle; 20. and a second rubber 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 work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a high-performance variable frequency driver comprises a shell 1 and a variable frequency driver body 2, in order to enable the bottom of the shell 1 to leave the ground, supporting legs 16 are welded at four corners of the bottom of the shell 1, the bottom ends of the supporting legs 16 are all designed to be frustum-shaped, first rubber sleeves 17 are glued to the bottoms of the supporting legs 16, the supporting stability of the supporting legs 16 is improved, in order to carry the device conveniently, handles 19 are symmetrically welded to two sides of the outer wall of the shell 1, second rubber sleeves 20 are glued to two groups of handles 19, hand grasping friction is increased, and a group of first cavities 3 and two groups of second cavities 4 are formed in the shell 1;

the variable frequency driver body 2 is fixed in the first cavity 3 through a bolt 5, a radiating fin 6 is arranged on one side, close to the heating element, of the variable frequency driver body 2, and spring shock absorbers 15 are arranged between the top and the bottom of the variable frequency driver body 2 and the inner wall of the shell 1;

the fans 8 are clamped in the two groups of second cavities 4 through two groups of silicon rubber blocks 7, elastic rubber gaskets 9 are glued between the silicon rubber blocks 7 and the fans 8, and two groups of silicon rubber lining plates 14 are embedded in one side, close to the second cavities 4, of the shell 1, so that the structural strength of the shell 1 can be enhanced, and the vibration energy generated when the fans 8 run can be absorbed;

the air inlet channel 10 is arranged on the two groups of second cavities 4 and close to the fan 8 in a penetrating mode, in order to prevent hot air flow mixed with the air sucked by the fan 8 from being exhausted, the heat dissipation effect is reduced, the two groups of air inlet channels 10 are arranged in an inclined mode, the partition plate 11 is welded between the two groups of second cavities 4, the heat dissipation channels 12 are formed between the two groups of second cavities 4 and the partition plate 11, in order to block dust from entering, dust filter nets 18 are embedded in the two groups of air inlet channels 10 and the two groups of heat dissipation channels 12, the shell 1 is communicated with the two groups of heat dissipation channels 12 through the two groups of heat dissipation holes 13 respectively, the air flow blown out by the two groups of fans 8 is blown to the heat dissipation fins 6, convection is formed at the contact positions of the two groups of heat dissipation channels 12, the heat dissipation.

The working principle is as follows: two sets of fans 8 blast the air current and blow to radiating fin 6, form the convection current in two sets of radiating passages 12 contact department, take away the heat on radiating fin 6, discharge from louvre 13 through radiating passage 12 again, vibration influence when two sets of spring damper 15 can reduce variable frequency drive ware body 2 operation, and vibration energy when fan 8 operation transmits to in the shell 1 after elastic rubber gasket 9 and the silicon rubber piece 7 at both ends absorb, absorb by silicon rubber welt 14 again, thereby reach the purpose that reduces the vibration influence of fan 8 operation to the device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high performance variable frequency drive, includes shell (1) and variable frequency drive body (2), its characterized in that: a group of first cavities (3) and two groups of second cavities (4) are arranged in the shell (1), the frequency conversion driver body (2) is fixed in the first cavities (3) through bolts (5), heat radiating fins (6) are arranged on one side, close to a heating element, of the frequency conversion driver body (2), spring dampers (15) are arranged between the top and the bottom of the frequency conversion driver body (2) and the inner wall of the shell (1), fans (8) are clamped in the two groups of second cavities (4) through two groups of silicon rubber blocks (7), elastic rubber gaskets (9) are glued between the silicon rubber blocks (7) and the fans (8), air inlet channels (10) are arranged on the two groups of second cavities (4) in a position close to the fans (8) in a penetrating mode, partition plates (11) are welded between the two groups of second cavities (4), and heat radiating channels (12) are formed between the two groups of second cavities (4) and the partition plates (11), the shell (1) is respectively communicated with the two groups of heat dissipation channels (12) through the two groups of heat dissipation holes (13), and two groups of silicon rubber lining plates (14) are embedded in one side, close to the second cavity (4), of the shell (1).

2. A high performance variable frequency drive according to claim 1, wherein: four groups of support legs (16) are welded at the bottom of the shell (1), and the four groups of support legs (16) are arranged at four corners of the bottom of the shell (1).

3. A high performance variable frequency drive according to claim 2, wherein: the bottom ends of the support legs (16) are all designed to be frustum-shaped, and the bottoms of the support legs (16) are connected with first rubber sleeves (17) in an adhesive mode.

4. A high performance variable frequency drive according to claim 1, wherein: the two groups of air inlet channels (10) are obliquely arranged.

5. A high performance variable frequency drive according to claim 1, wherein: dust filtration nets (18) are embedded in the two groups of air inlet channels (10) and the two groups of heat dissipation channels (12).

6. A high performance variable frequency drive according to claim 1, wherein: the handle (19) are symmetrically welded on two sides of the outer wall of the shell (1), and the second rubber sleeve (20) is connected to the two groups of handles (19) in an adhesive mode.