CN109067298B - Dustproof heat abstractor of converter - Google Patents

Abstract

The invention discloses a dust-proof and heat-dissipating device for a frequency converter, comprising an outer box body, a shock absorbing device is fixedly connected to the bottom of the inner wall of the outer box, an inner box body is fixedly connected to the top of the shock absorbing device, and two parts of the outer wall of the outer box are fixedly connected. A first cooling box and a second cooling box are fixedly connected to the sides respectively. The bottoms of the inner walls of the first cooling box and the second cooling box are fixedly connected with a cooling box and a liquid pump in turn. The outlet end of the tank is communicated, the liquid outlet end of the liquid pump is communicated with a second heat dissipation pipe through the first heat dissipation pipe, one end of the second heat dissipation pipe is communicated with the cooling box, the surface of the first heat dissipation pipe is fixedly connected with a heat absorbing fin, The surfaces of the two heat dissipation pipes are fixedly connected with heat dissipation fins, and the invention relates to the technical field of heat dissipation of frequency converters. The dust-proof and heat-dissipating device of the frequency converter solves the problem that dust will enter the inside of the frequency-converter box through the heat-dissipating holes, which will affect the normal operation of the frequency converter and thus affect the normal production and processing.

Description

A dust-proof cooling device for a frequency converter

technical field

The invention relates to the technical field of heat dissipation of frequency converters, in particular to a dust-proof heat dissipation device for frequency converters.

Background technique

The frequency converter is mainly composed of rectification (AC to DC), filtering, inverter (DC to AC), braking unit, drive unit, detection unit and micro-processing unit. The inverter adjusts the voltage and frequency of the output power supply by switching on and off the internal IGBT, and provides the required power supply voltage according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation. In addition, the inverter also has many protection functions. , such as overcurrent, overvoltage, overload protection, etc., with the continuous improvement of industrial automation, frequency converters have also been widely used. The frequency converter is usually placed in the box during use, which has a certain protective effect on the components. When the inverter is working, a certain amount of heat is generated. Usually, heat dissipation holes are opened on the surface of the inverter box, and a cooling fan is set inside to dissipate heat. However, in places with harsh environments, the dust is large, and the dust will enter the inverter box through the cooling holes. Internally, it will affect the normal work of the inverter, which will affect the normal production and processing.

SUMMARY OF THE INVENTION

(1) Technical problems solved

In view of the deficiencies of the prior art, the present invention provides a dust-proof and heat-dissipating device for a frequency converter, which solves the problem that dust will enter the inside of the frequency-converter box through the heat-dissipating holes, affecting the normal operation of the frequency-converter and thus affecting the normal production and processing. The problem.

(2) Technical solutions

In order to achieve the above purpose, the present invention is achieved through the following technical solutions: a dust-proof and heat-dissipating device for a frequency converter, comprising an outer box body, a shock absorbing device is fixedly connected to the bottom of the inner wall of the outer box, and the shock absorbing device is The top is fixedly connected with an inner box body, the inner wall of the outer box body is located at the corresponding position of the inner box body and is fixedly connected with a first shock-absorbing rubber and a second shock-absorbing rubber in sequence, and the two sides of the outer wall of the outer box are respectively fixedly connected There are a first cooling box and a second cooling box, and the bottoms of the inner walls of the first cooling box and the second cooling box are fixedly connected with a cooling box and a liquid pump in sequence, and the liquid inlet end of the liquid pump is connected with a communication pipe, One end of the communication pipe away from the liquid pump is communicated with the outlet end of the cooling box, the liquid outlet end of the liquid pump is communicated with a first heat dissipation pipe, and one end of the first heat dissipation pipe penetrates the first heat dissipation tank and the outer case in turn. one end of the first heat dissipation pipe extending to the inside of the outer case body passes through the outer case body and the first heat dissipation case in turn and communicates with a second heat dissipation pipe, one end of the second heat dissipation pipe It communicates with the cooling box, the surface of the first heat dissipation pipe is fixedly connected with heat absorbing fins, the surface of the second heat dissipation pipe is fixedly connected with heat dissipation fins, and the bottom of the inner wall of the outer box is fixedly connected with a first heat dissipation fan, A second cooling fan is fixedly connected to the inner walls of the first cooling box and the second cooling box.

Preferably, the shock absorbing device includes a shock absorbing bottom box, a bottom rod is fixedly connected to the bottom of the inner wall of the shock absorbing bottom box, a movable block is slidably connected to the surface of the bottom rod, and the movable block is connected to the shock absorbing bottom box. A first spring is fixedly connected to the surface of the bottom rod on opposite sides, the top of the movable block is fixedly connected with a support plate, and the side of the support plate is slidably connected to the shock-absorbing bottom box, and the bottom of the support plate is provided with a The bottom rod is adapted to the groove, and the bottom of the inner wall of the shock-absorbing bottom box is provided with a ventilation hole.

Preferably, the first heat dissipation pipe is configured as a vertical U-shaped pipe, and the first heat dissipation pipe is fixedly connected to the inner wall of the outer box through a heat absorbing sheet.

Preferably, the second heat dissipation pipe is configured as a horizontal U-shaped pipe, and the second heat dissipation pipe is fixedly connected to the inner walls of the first heat dissipation box and the second heat dissipation box through heat dissipation fins.

Preferably, ventilation holes are provided on both sides and the bottom of the inner wall of the inner box.

Preferably, a box door is rotatably connected to the surface of the outer box body through a hinge, a hasp is fixedly connected between the box door and the first heat dissipation box, and a surface of the outer box body is provided with a box adapted to the box door. A through hole is provided in the inner box at the corresponding position of the box door.

Preferably, a sealing ring is provided on the side of the box door close to the outer box body.

Preferably, the top of the cooling box is screwed with an injection plug, and the bottom of the cooling box is screwed with a drain plug.

Preferably, a fixing hook is fixedly connected to the side of the outer box away from the box door.

Preferably, the heat absorbing fins and the radiating fins are made of steel-aluminum composite material, and the first and second heat dissipation pipes are copper pipes.

(3) Beneficial effects

The invention provides a dust-proof and heat-dissipating device of a frequency converter. Has the following beneficial effects:

(1) The dust-proof and heat-dissipating device of this kind of frequency converter is fixedly connected with a shock-absorbing device through the bottom of the inner wall of the outer box, and the top of the shock-absorbing device is fixedly connected with an inner box body, and the inner wall of the outer box body is located at the bottom of the outer box. Corresponding positions of the inner box are fixedly connected with a first shock absorbing rubber and a second shock absorbing rubber, which reduces the impact of the vibration of the outer box on the inner box and ensures the normal operation of the inverter components in the inner box.

(2) The dust-proof and heat-dissipating device of this kind of frequency converter is respectively fixedly connected with a first heat-dissipating box and a second heat-dissipating box through the two sides of the outer wall of the outer box. A cooling box and a liquid pump are fixedly connected in sequence. The liquid inlet end of the liquid pump is connected with a communication pipe, and the end of the communication pipe away from the liquid pump is communicated with the outlet end of the cooling box. The liquid outlet of the liquid pump The end is connected with a first heat dissipation pipe, one end of the first heat dissipation pipe sequentially penetrates the first heat dissipation box and the outer box body and extends to the inside of the outer box body, and one end of the first heat dissipation pipe extends to the inside of the outer box body in turn. A second radiating pipe is connected through the outer box, the first radiating box, and one end of the second radiating pipe is communicated with the cooling box. The surface of the first radiating pipe is fixedly connected with a heat-absorbing fin, and the second radiating The surface of the tube is fixedly connected with radiating fins, the bottom of the inner wall of the outer box is fixedly connected with a first cooling fan, and the inner walls of the first cooling box and the second cooling box are fixedly connected with a second cooling fan. The fan forms an internal circulation in the inner box to improve the heat absorption efficiency of the heat absorbing fins, and then dissipates the heat through the first heat dissipation pipe, the second heat dissipation pipe and the heat dissipation fin, avoiding high temperature inside and preventing dust from entering. Ensure the normal operation of the inverter components.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the internal structure schematic diagram of the present invention;

FIG. 3 is a schematic structural diagram of the damping device of the present invention;

FIG. 4 is a schematic diagram of the installation of the first heat pipe of the present invention;

Figure 5 is a right side view of the overall structure of the present invention.

In the picture: 1-outer box, 2-shock absorber, 201-vent hole, 202-first spring, 203-bottom rod, 204-movable block, 205-shock-absorbing bottom box, 206-groove, 207- Support plate, 3-inner box, 4-first damping rubber, 5-second damping rubber, 6-first cooling box, 7-second cooling box, 8-cooling box, 9-liquid pump, 10 -connecting pipe, 11-first cooling pipe, 12-second cooling pipe, 13-heat absorbing fin, 14- cooling fin, 15-first cooling fan, 16-second cooling fan, 17-hinge, 18-box Door, 19- hasp, 20-fill plug, 21- drain plug, 22-fixing hook.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-5, the present invention provides a technical solution: a dust-proof and heat-dissipating device for a frequency converter, comprising an outer box 1, a shock-absorbing device 2 is fixedly connected to the bottom of the inner wall of the outer box 1, and the shock-absorbing device 2 The inner box 3 is fixedly connected to the top of the outer box, and the inner wall of the outer box 1 is located at the corresponding position of the inner box 3. The first shock-absorbing rubber 4 and the second shock-absorbing rubber 5 are fixedly connected in turn to reduce the vibration of the outer box 1. Influence of inner box 3. The two sides of the outer wall of the outer casing 1 are respectively fixedly connected with a first heat dissipation box 6 and a second heat dissipation box 7, and the bottoms of the inner walls of the first heat dissipation box 6 and the second heat dissipation box 7 are fixedly connected with a cooling box 8 and a liquid pump 9 in turn. , the liquid inlet end of the liquid pump 9 is communicated with a communication pipe 10, the end of the communication pipe 10 away from the liquid pump 9 is communicated with the outlet end of the cooling box 8, and the liquid outlet end of the liquid pump 9 is communicated with a first heat dissipation pipe 11, One end of a heat dissipation pipe 11 penetrates the first heat dissipation box 6 and the outer case body 1 in sequence and extends to the inside of the outer case body 1 , and one end of the first heat dissipation pipe 11 extending to the inside of the outer case body 1 sequentially penetrates the outer case body 1 , the first heat dissipation pipe 11 and the outer case body 1 . A heat dissipation box 6 is connected with a second heat dissipation pipe 12. One end of the second heat dissipation pipe 12 is communicated with the cooling box 8, and the interior of the inner box 3 is dissipated by liquid cooling. The surface of the first heat dissipation pipe 11 is fixedly connected with a heat sink. The surface of the second heat pipe 12 is fixedly connected with the heat sink 14 to increase the heat dissipation area, and the bottom of the inner wall of the outer box 1 is fixedly connected with the first cooling fan 15 to realize the air circulation inside the inner box 3 , to accelerate the heat absorption efficiency, the inner walls of the first heat dissipation box 6 and the second heat dissipation box 7 are fixedly connected with a second heat dissipation fan 16 to improve the heat dissipation efficiency.

The shock absorbing device 2 includes a shock absorbing bottom box 205, a bottom rod 203 is fixedly connected to the bottom of the inner wall of the shock absorbing bottom box 205, a movable block 204 is slidably connected to the surface of the bottom rod 203, and the movable block 204 is opposite to the shock absorbing bottom box 205. A first spring 202 is fixedly connected to the surface of the bottom rod 203 on the side and located on the side, and a support plate 207 is fixedly connected to the top of the movable block 204. The side of the support plate 207 is slidably connected to the shock-absorbing bottom box 205. The bottom rod 203 is adapted to the groove 206 , and the bottom of the inner wall of the shock-absorbing bottom box 205 is provided with a ventilation hole 201 to reduce the vibration of the inner box 3 .

The first heat dissipation pipe 11 is set as a vertical U-shaped pipe, and the first heat dissipation pipe 11 is fixedly connected with the inner wall of the outer box 1 through the heat absorption sheet 13, which is beneficial to the circulation of air.

The second heat dissipation pipe 12 is set as a horizontal U-shaped pipe, and the second heat dissipation pipe 12 is fixedly connected to the inner walls of the first heat dissipation box 6 and the second heat dissipation box 7 through the heat dissipation fins 14 to improve the heat dissipation efficiency.

Ventilation holes are provided on both sides and the bottom of the inner wall of the inner box 3 to realize internal air circulation.

A box door 18 is rotatably connected to the surface of the outer box body 1 through a hinge 17 , a hasp 19 is fixedly connected between the box door 18 and the first cooling box 6 , and the surface of the outer box body 1 is provided with a through hole 18 adapted to the box door 18 . The inner box 3 is provided with a through hole at the corresponding position of the box door 18, and the side of the box door 18 close to the outer box 1 is provided with a sealing ring, which is convenient for the installation of the inverter and avoids the entry of external dust.

An injection plug 20 is threadedly connected to the top of the cooling box 8, and a drain plug 21 is threadedly connected to the bottom of the cooling box 8, so that liquid can be added and discharged.

A fixing hook 22 is fixedly connected to the side of the outer box 1 away from the box door 18 to facilitate the fixing of the outer box 1 .

The heat sink 13 and the heat sink 14 are made of steel-aluminum composite material, and the first heat pipe 11 and the second heat pipe 12 are both copper pipes, so as to improve the heat absorption and heat dissipation efficiency.

During operation, the first cooling fan 15, the second cooling fan 16 and the liquid pump 9 are activated, and the liquid pump 9 pumps the liquid of the cooling box 8 into the first cooling pipe 11, and the first cooling fan 15 rotates to realize the inside of the inner box 3. The air circulates, and the heat inside the inner box 3 is absorbed by the heat absorbing sheet 13 and transferred to the liquid in the first heat dissipation pipe 11. Under the action of the liquid pump 9, the liquid in the first heat dissipation pipe 11 transfers the heat to the second heat dissipation pipe. 12. The second cooling fan 16 works to accelerate the air flow, and the temperature of the liquid in the second cooling pipe 12 is lowered by radiating heat from the cooling fins 14, and the liquid in the second cooling pipe 12 flows back into the cooling box 8 to achieve cooling.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. without more restrictions. An element defined by the phrase "comprising an... does not preclude the presence of additional identical elements in a process, method, article or apparatus comprising said element".

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

Claims (10)

1. The utility model provides a dustproof heat abstractor of converter, includes outer box (1), its characterized in that: the damping device (2) is fixedly connected to the bottom of the inner wall of the outer box body (1), the inner box body (3) is fixedly connected to the top of the damping device (2), the inner wall of the outer box body (1) is located at the corresponding position of the inner box body (3) and is fixedly connected with a first damping rubber (4) and a second damping rubber (5) in sequence, a first heat dissipation box (6) and a second heat dissipation box (7) are fixedly connected to two sides of the outer wall of the outer box body (1) respectively, the bottoms of the inner walls of the first heat dissipation box (6) and the second heat dissipation box (7) are fixedly connected with a cooling box (8) and a liquid pump (9) in sequence, a liquid inlet end of the liquid pump (9) is communicated with a communicating pipe (10), one end, far away from the liquid pump (9), of the communicating pipe (10) is communicated with an outlet end of the cooling box (8), the one end of first cooling tube (11) runs through first radiator box (6), outer box (1) in proper order and extends to the inside of outer box (1), the one end that first cooling tube (11) extended to outer box (1) inside runs through outer box (1), first radiator box (6) and communicates in proper order has second cooling tube (12), the one end and cooling box (8) intercommunication of second cooling tube (12), the fixed surface of first cooling tube (11) is connected with heat absorbing sheet (13), the fixed surface of second cooling tube (12) is connected with fin (14), the first radiator fan (15) of bottom fixedly connected with of outer box (1) inner wall, the inner wall fixedly connected with second radiator fan (16) of first radiator box (6), second radiator box (7).

2. The dustproof heat dissipation device of the frequency converter according to claim 1, wherein: damping device (2) are including shock attenuation under casing (205), bottom fixedly connected with sill bar (203) of shock attenuation under casing (205) inner wall, the surperficial sliding connection of sill bar (203) has movable block (204), the surperficial fixedly connected with first spring (202) that both sides that movable block (204) are relative with shock attenuation under casing (205) and be located sill bar (203), the top fixedly connected with backup pad (207) of movable block (204), and the side and shock attenuation under casing (205) sliding connection of backup pad (207), recess (206) with sill bar (203) looks adaptation are seted up to backup pad (207) bottom, bleeder vent (201) have been seted up to the bottom of shock attenuation under casing (205) inner wall.

3. The dustproof heat dissipation device of the frequency converter according to claim 1, wherein: the first radiating pipe (11) is arranged to be a vertical U-shaped pipe, and the first radiating pipe (11) is fixedly connected with the inner wall of the outer box body (1) through a heat absorbing sheet (13).

4. The dustproof heat dissipation device of the frequency converter according to claim 1, wherein: the second radiating pipe (12) is arranged to be a transverse U-shaped pipe, and the second radiating pipe (12) is fixedly connected with the inner walls of the first radiating box (6) and the second radiating box (7) through radiating fins (14).

5. The dustproof heat dissipation device of the frequency converter according to claim 1, wherein: the two sides and the bottom of the inner wall of the inner box body (3) are provided with ventilation holes.

6. The dustproof heat dissipation device of the frequency converter according to claim 1, wherein: the surface of the outer box body (1) is rotatably connected with a box door (18) through a hinge (17), a hasp (19) is fixedly connected between the box door (18) and the first heat dissipation box (6), a through hole matched with the box door (18) is formed in the surface of the outer box body (1), and the inner box body (3) is located at the corresponding position of the box door (18) and is provided with the through hole.

7. The dustproof heat dissipation device of the frequency converter according to claim 6, wherein: and a sealing ring is arranged on one side of the box door (18) close to the outer box body (1).

8. The dustproof heat dissipation device of the frequency converter according to claim 1, wherein: the top of the cooling box (8) is in threaded connection with an injection plug (20), and the bottom of the cooling box (8) is in threaded connection with a drainage plug (21).

9. The dustproof heat dissipation device of the frequency converter according to claim 1, wherein: one side of the outer box body (1) far away from the box door (18) is fixedly connected with a fixed hook (22).

10. The dustproof heat dissipation device of the frequency converter according to claim 1, wherein: the heat absorbing sheet (13) and the heat radiating sheet (14) are both made of steel-aluminum composite materials, and the first radiating pipe (11) and the second radiating pipe (12) are both copper pipes.

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