CN216087231U

CN216087231U - Frequency converter fault protection device

Info

Publication number: CN216087231U
Application number: CN202122081133.4U
Authority: CN
Inventors: 豆自建; 豆志超; 豆志鸿; 郑方岚; 董志强
Original assignee: Henan Devo Electric Co ltd
Current assignee: Henan Devo Electric Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-03-18
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a frequency converter fault protection device, which comprises a box body and a frequency converter body, wherein the frequency converter body is arranged in the box body, the top end of the box body is provided with a heat dissipation assembly, the heat dissipation assembly comprises two installation frames, the two installation frames are respectively and fixedly inserted and arranged at two sides of the top end of the box body, and the top and the bottom of the inner wall of the two installation frames are respectively and fixedly provided with two dustproof grid plates and two air guide buckets, and the frequency converter fault protection device has the beneficial effects that: temperature detect switch through setting up triggers two driving motor and begins work when the temperature of converter body is too high, and two driving motor's output shaft drives two flabellums respectively, cooperatees with two installing frames, two dustproof grid boards, two induced air fill and two dust filtration nets that set up, is convenient for carry out better cooling to it automatically when the converter is too warm, has improved converter fault protection device's work efficiency, has improved converter fault protection device's security.

Description

Frequency converter fault protection device

Technical Field

The utility model relates to a protection device, in particular to a frequency converter fault protection device, and belongs to the technical field of frequency converters.

Background

The frequency converter is a power control device which applies frequency conversion technology and 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, a filtering unit, an inverting unit, a braking unit, a driving unit, a detection unit and a microprocessing unit, the frequency converter adjusts the voltage and the frequency of an output power supply by switching on and off an internal IGBT, the required power supply voltage is provided according to the actual requirement of the motor, so as to achieve the purposes of energy saving and speed regulation, frequency converter fault protection devices are often needed to protect the frequency converter during the working process of the frequency converter, but current converter fault protection device is not convenient for carry out better cooling to it automatically when the converter is overheated, is not convenient for provide better collision avoidance in removing or the transportation, has reduced converter fault protection device's work efficiency and security.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a frequency converter fault protection device to solve the problems that the conventional frequency converter fault protection device in the background art is inconvenient to automatically and better cool a frequency converter when the frequency converter is over-temperature and is inconvenient to provide better anti-collision protection in the moving or transportation process.

In order to achieve the purpose, the utility model provides the following technical scheme: a frequency converter fault protection device comprises a box body and a frequency converter body, wherein the frequency converter body is arranged inside the box body, the top end of the box body is provided with a heat dissipation assembly, the heat dissipation assembly comprises two mounting frames, the two mounting frames are respectively fixedly inserted and arranged on two sides of the top end of the box body, the top and the bottom of the inner walls of the two mounting frames are respectively fixedly provided with two dustproof grid plates and two air guide hoppers, the bottoms of the inner walls of the two air guide hoppers are respectively fixedly provided with a dust filter screen, the middle parts of the bottoms of the two dustproof grid plates are respectively fixedly provided with a driving motor, the output shafts of the two driving motors are respectively fixedly sleeved with fan blades, two sides of the box body are provided with anti-collision assemblies, each anti-collision assembly comprises two anti-collision plates, the two anti-collision plates are respectively arranged on two sides of the box body, and four corners of the inner sides of the two anti-collision plates are respectively fixedly provided with a shock absorber, eight the one end of bumper shock absorber respectively with the four corners fixed connection of box both sides, eight the outside of bumper shock absorber all is equipped with reinforcing spring, two the spout has all been seted up, four to crashproof inboard top and bottom the inside of spout all slides and is equipped with the slider, wherein two the top of slider and the equal fixedly connected with reset spring in bottom of two other sliders, four the inboard of slider all articulates through the hinge has the connecting rod, four the one end of connecting rod is articulated with the middle part of box both sides respectively through four hinges, the fixed temperature switch that is equipped with in one side of box inner wall.

As a preferred technical scheme of the utility model, supporting blocks are fixedly arranged at four corners of the bottom end of the inner wall of the box body, and the top ends of the four supporting blocks are respectively and fixedly connected with the four corners of the bottom end of the frequency converter body.

As a preferred technical scheme of the utility model, the four corners of the top end of the box body are fixedly provided with connecting blocks, and the top ends of the four connecting blocks are fixedly provided with mounting plates.

As a preferred technical scheme of the utility model, screws are inserted at four corners of the top end of the mounting plate in a sliding manner.

As a preferred technical scheme of the utility model, the middle part of the bottom end of the box body is provided with a plurality of heat dissipation holes.

As a preferred technical scheme of the utility model, the middle part of the side of the box body is hinged with a box door through two hinges.

As a preferred technical scheme of the utility model, a storage battery is fixedly arranged on the other side of the inner wall of the box body, and the two driving motors are electrically connected with the storage battery through a temperature control switch.

Compared with the prior art, the utility model has the beneficial effects that: according to the frequency converter fault protection device, the two driving motors are triggered to start working when the temperature of the frequency converter body is too high through the arranged temperature control switch, the two fan blades are respectively driven by the output shafts of the two driving motors to be matched with the two installation frames, the two dustproof grid plates, the two air guide hoppers and the two dust filter nets, so that the frequency converter can be cooled better automatically when the temperature is too high, the eight shock absorbers, the eight reinforcing springs and the four connecting rods are respectively driven by the two collision-proof plates, the four sliding blocks are respectively driven by the four connecting rods to be matched with the four sliding grooves and matched with the four reset springs, so that better collision-proof protection is provided in the moving or transporting process, the working efficiency of the frequency converter fault protection device is improved, and the safety of the frequency converter fault protection device is improved.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A of FIG. 2 according to the present invention;

fig. 4 is an enlarged schematic view of the utility model at B of fig. 2.

In the figure: 1. a box body; 2. a frequency converter body; 3. a heat dissipating component; 31. installing a frame; 32. a dust-proof grid plate; 33. a draft hopper; 34. a dust filter screen; 35. a drive motor; 36. a fan blade; 4. a temperature control switch; 5. connecting blocks; 6. an anti-collision assembly; 61. an anti-collision plate; 62. a chute; 63. a slider; 64. a return spring; 65. a shock absorber; 66. reinforcing the spring; 67. a connecting rod; 7. mounting a plate; 8. a screw; 9. a support block; 10. heat dissipation holes; 11. a box door; 12. and (4) a storage battery.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a frequency converter fault protection device, which comprises a box body 1 and a frequency converter body 2, wherein the frequency converter body 2 is arranged inside the box body 1, a heat dissipation assembly 3 is arranged at the top end of the box body 1, the heat dissipation assembly 3 comprises two installation frames 31, the two installation frames 31 are respectively fixedly inserted and arranged at two sides of the top end of the box body 1, the top and the bottom of the inner wall of the two installation frames 31 are respectively and fixedly provided with two dustproof grid plates 32 and two induced draft hoppers 33, the bottom of the inner wall of the two induced draft hoppers 33 is respectively and fixedly provided with a dust filter 34, the middle parts of the bottom ends of the two dustproof grid plates 32 are respectively and fixedly provided with a driving motor 35, the output shafts of the two driving motors 35 are respectively and fixedly sleeved with fan blades 36, the two sides of the box body 1 are provided with anti-collision assemblies 6, the anti-collision assemblies 6 comprise two anti-collision plates 61, the two anti-collision plates 61 are respectively arranged at two sides of the box body 1, the inboard four corners of two anticollision boards 61 is all fixed and is equipped with bumper shock absorber 65, the one end of eight bumper shock absorbers 65 respectively with the four corners fixed connection of box 1 both sides, the outside of eight bumper shock absorbers 65 all is equipped with reinforcing spring 66, spout 62 has all been seted up to the inboard top of two anticollision boards 61 and bottom, the inside of four spout 62 all slides and is equipped with slider 63, wherein the top of two slider 63 and the equal fixedly connected with reset spring 64 in bottom of two other slider 63, four slider 63's inboard all has connecting rod 67 through hinged joint, four connecting rod 67's one end is articulated with the middle part of box 1 both sides respectively through four hinges, the fixed temperature detect switch 4 that is equipped with in one side of box 1 inner wall, be convenient for trigger two driving motor 35 when the high temperature and begin work.

Preferably, the four corners of the bottom end of the inner wall of the box body 1 are all fixedly provided with supporting blocks 9, and the top ends of the four supporting blocks 9 are respectively and fixedly connected with the four corners of the bottom end of the frequency converter body 2, so that the supporting property is improved conveniently; the four corners of the top end of the box body 1 are fixedly provided with connecting blocks 5, and the top ends of the four connecting blocks 5 are fixedly provided with mounting plates 7, so that four screws 8 can be conveniently mounted; screws 8 are slidably inserted into four corners of the top end of the mounting plate 7, so that the mounting and dismounting are facilitated; the middle part of the bottom end of the box body 1 is provided with a plurality of heat dissipation holes 10, so that heat dissipation is facilitated; the middle part of the side of the box body 1 is hinged with a box door 11 through two hinges, so that the box body 1 can be opened conveniently; the battery 12 is fixedly arranged on the other side of the inner wall of the box body 1, and the two driving motors 35 are electrically connected with the battery 12 through the temperature control switch 4, so that the work of the two driving motors 35 can be controlled conveniently.

When the frequency converter fault protection device is used, firstly, the frequency converter fault protection device is placed at a corresponding working position, then whether all parts of the frequency converter fault protection device work normally is checked, whether the electric quantity of a storage battery 12 is sufficient is checked, a mounting plate 7 is mounted at the corresponding working position through four screws 8 after the checking is finished, the frequency converter fault protection device can be used after the mounting is finished, when the frequency converter fault protection device is used, a frequency converter body 2 is respectively connected with external equipment and an external power supply, when the temperature of the frequency converter body 2 is overhigh during the working, a temperature control switch 4 with the model of KEWILL-TK16 triggers two driving motors 35 to start working, output shafts of the two driving motors 35 respectively drive two fan blades 36 to be matched with two mounting frames 31, two dustproof grid plates 32, two air guide hoppers 33 and two dust filter nets 34, so that the frequency converter can be cooled down automatically and better when the frequency converter is overhigh, when converter fault protection device received external force striking in removing or the transportation, two anticollision boards 61 of setting drive respectively eight bumper shock absorbers 65, eight reinforcing spring 66 and four connecting rod 67, four connecting rod 67 drive four sliders 63 and cooperate with four spout 62 respectively, cooperate with four reset spring 64 that set up, be convenient for provide better collision protection in removing or the transportation, converter fault protection device's work efficiency has been improved, converter fault protection device's security has been improved, a plurality of louvre 10 that sets up is convenient for improve thermal diffusivity and air permeability.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The frequency converter fault protection device comprises a box body (1) and a frequency converter body (2), and is characterized in that the frequency converter body (2) is arranged inside the box body (1), a heat dissipation assembly (3) is arranged at the top end of the box body (1), the heat dissipation assembly (3) comprises two installation frames (31), the two installation frames (31) are respectively and fixedly arranged at two sides of the top end of the box body (1) in an inserting manner, two dustproof grid plates (32) and two induced draft hoppers (33) are respectively and fixedly arranged at the top and the bottom of the inner wall of the installation frame (31), dust filtering nets (34) are respectively and fixedly arranged at the bottoms of the inner walls of the two induced draft hoppers (33), driving motors (35) are respectively and fixedly arranged at the middle parts of the bottoms of the bottom ends of the dustproof grid plates (32), and fan blades (36) are respectively and fixedly sleeved on output shafts of the driving motors (35), the anti-collision device is characterized in that anti-collision assemblies (6) are arranged on two sides of the box body (1), each anti-collision assembly (6) comprises two anti-collision plates (61), the two anti-collision plates (61) are respectively arranged on two sides of the box body (1), shock absorbers (65) are respectively fixedly arranged at four corners of the inner sides of the two anti-collision plates (61), one ends of the eight shock absorbers (65) are respectively fixedly connected with the four corners of the two sides of the box body (1), reinforcing springs (66) are respectively sleeved outside the eight shock absorbers (65), sliding grooves (62) are respectively formed in the top and the bottom of the inner sides of the two anti-collision plates (61), sliding blocks (63) are respectively arranged in the four sliding grooves (62) in a sliding mode, return springs (64) are respectively and fixedly connected to the top ends of the two sliding blocks (63) and the bottom ends of the other two sliding blocks (63), and connecting rods (67) are respectively hinged to the inner sides of the four sliding blocks (63), four the one end of connecting rod (67) is articulated with the middle part of box (1) both sides respectively through four hinges, one side of box (1) inner wall is fixed and is equipped with temperature detect switch (4).

2. A frequency converter fault protection device according to claim 1, characterized in that: supporting blocks (9) are fixedly arranged at four corners of the bottom end of the inner wall of the box body (1), and the top ends of the four supporting blocks (9) are fixedly connected with the four corners of the bottom end of the frequency converter body (2) respectively.

3. A frequency converter fault protection device according to claim 1, characterized in that: the four corners on the top end of the box body (1) are fixedly provided with connecting blocks (5), and the top ends of the connecting blocks (5) are fixedly provided with mounting plates (7).

4. A frequency converter fault protection device according to claim 3, characterized in that: screws (8) are arranged at four corners of the top end of the mounting plate (7) in a sliding and inserting mode.

5. A frequency converter fault protection device according to claim 1, characterized in that: the middle part of the bottom end of the box body (1) is provided with a plurality of heat dissipation holes (10).

6. A frequency converter fault protection device according to claim 1, characterized in that: the middle of the side of the box body (1) is hinged with a box door (11) through two hinges.

7. A frequency converter fault protection device according to claim 1, characterized in that: the other side of box (1) inner wall is fixed and is equipped with battery (12), two driving motor (35) all through temperature detect switch (4) and battery (12) electric connection.