Special heat dissipation bottom plate for frequency converter

Abstract

The utility model discloses a special heat dissipation base plate for a frequency converter, which relates to the field of frequency converters and comprises a heat dissipation base plate body, the left side and the right side of the heat dissipation base plate body are connected with mounting plates, the top of one mounting plate is connected with two first fixing plates, and a reciprocating screw rod is connected between the two first fixing plates. The outer wall of the reciprocating lead screw is connected with a moving block, the side wall of the moving block is connected with a first pull rod, the side wall of the heat dissipation bottom plate body is provided with a first strip-shaped opening corresponding to the first pull rod, and the side wall of the first pull rod is connected with a cleaning scraper. The micro motor is used for driving the reciprocating lead screw to rotate, the reciprocating lead screw drives the moving block to move, the moving block pulls the first pull rod, so that the first pull rod slides in the first strip-shaped opening, the first pull rod pulls the cleaning scraping plate, and the heat dissipation bottom plate body is cleaned back and forth through the cleaning scraping plate; and the problem that the heat dissipation effect of the heat dissipation bottom plate body is affected by dust can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the field of frequency converters, in particular to a heat dissipation base plate dedicated to frequency converters. Background Art

[0002] The inverter is mainly composed of rectification, filtering, inversion, braking unit, drive unit, detection unit, microprocessor unit, etc. The inverter adjusts the voltage and frequency of the output power supply by the opening and closing of 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 over-current, over-voltage, overload protection, etc. With the continuous improvement of industrial automation, inverters have also been widely used.

[0003] At present, when using a heat sink to dissipate heat from the inverter, the existing inverter heat sinks are mostly fin-type, and the heat dissipation fins are used to dissipate heat from the inverter. However, after the fin-type heat sink is used for a period of time, its surface is easily contaminated with dust, resulting in the heat of the fins cannot be quickly dissipated, which will affect the heat dissipation effect of the heat sink.

[0004] Therefore, it is necessary to invent a special heat dissipation base plate for frequency converter to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a heat dissipation base plate dedicated to a frequency converter to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat dissipation base plate specially used for a frequency converter, comprising a heat dissipation base plate body, the left and right sides of the heat dissipation base plate body are connected to mounting plates, the top of one of the mounting plates is connected to two first fixed plates, a reciprocating screw is connected between the two first fixed plates, the outer wall of the reciprocating screw is connected to a moving block, the side wall of the moving block is connected to a first pull rod, the side wall of the heat dissipation base plate body is provided with a first strip opening corresponding to the first pull rod, the side wall of the first pull rod is connected to a cleaning scraper, the rear side of one of the first fixed plates is connected to a micro motor, and the output end of the micro motor is connected to the rear end of the reciprocating screw.

[0007] Preferably, a shunt pipe is connected to the rear side of the heat dissipation base plate body, a plurality of air outlet holes are provided on the front side of the shunt pipe, and an axial flow fan is connected to the side wall of the shunt pipe.

[0008] Preferably, locking plates are connected to the left and right sides of the axial flow fan, a locking groove corresponding to the locking plate is opened on the rear side of the diverter pipe, and corresponding threaded holes are opened on the side walls of the locking groove and the locking plate, and bolts are threadedly connected in the threaded holes.

[0009] Preferably, two second fixed plates are connected to the top of the other mounting plate, sliding rods are connected inside the two second fixed plates, the outer wall of the sliding rods is connected to a sliding cylinder, the side wall of the sliding cylinder is connected to a second pull rod, and the side wall of the heat dissipation base plate body is provided with a second strip opening corresponding to the second pull rod, and the other end of the second pull rod is connected to the side wall of the cleaning scraper.

[0010] Technical effects and advantages of the utility model:

[0011] By using a micro motor to drive the reciprocating screw to rotate, the reciprocating screw drives the moving block to move, the moving block pulls the first pull rod, so that the first pull rod slides in the first strip opening, the first pull rod pulls the cleaning scraper, and the cleaning scraper is used to clean the heat dissipation base body back and forth, which can effectively avoid the problem of dust affecting the heat dissipation effect of the heat dissipation base body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 For this utility model Figure 1 Schematic diagram of the rear structure;

[0014] Figure 3 For this utility model Figure 1 AA section structural diagram;

[0015] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of part B.

[0016] In the figure: 1. heat dissipation base plate body; 2. mounting plate; 3. first fixed plate; 4. reciprocating screw; 5. moving block; 6. first pull rod; 7. cleaning scraper; 8. micro motor; 9. shunt pipe; 10. air outlet; 11. axial flow fan; 12. locking plate; 13. bolt; 14. second fixed plate; 15. slide rod; 16. slide cylinder; 17. second pull rod. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] The utility model provides Figure 1-4A heat dissipation base plate dedicated to a frequency converter is shown, comprising a heat dissipation base plate body 1, wherein mounting plates 2 are connected to the left and right sides of the heat dissipation base plate body 1, wherein two first fixed plates 3 are connected to the top of one of the mounting plates 2, a reciprocating screw 4 is connected between the two first fixed plates 3, a moving block 5 is connected to the outer wall of the reciprocating screw 4, a side wall of the moving block 5 is connected to a first pull rod 6, a first strip opening corresponding to the first pull rod 6 is opened on the side wall of the heat dissipation base plate body 1, a cleaning scraper 7 is connected to the side wall of the first pull rod 6, a micro motor 8 is connected to the rear side of one of the first fixed plates 3, an output end of the micro motor 8 is connected to the rear end of the reciprocating screw 4, the reciprocating screw 4 is driven to rotate by the micro motor 8, the reciprocating screw 4 drives the moving block 5 to move, the moving block 5 pulls the first pull rod 6, so that the first pull rod 6 slides in the first strip opening, the first pull rod 6 pulls the cleaning scraper 7, and the heat dissipation base plate body 1 is cleaned back and forth by the cleaning scraper 7, which can effectively avoid the problem of dust affecting the heat dissipation effect of the heat dissipation base plate body 1.

[0019] A shunt pipe 9 is connected to the rear side of the heat dissipation base body 1, and a plurality of air outlet holes 10 are opened on the front side of the shunt pipe 9. An axial flow fan 11 is connected to the side wall of the shunt pipe 9. By using the axial flow fan 11 to blow air, the air is transported into the shunt pipe 9, and then blown out through the air outlet holes 10 to blow air to the fins on the heat dissipation base body 1, thereby accelerating the heat dissipation efficiency of the heat dissipation base body 1.

[0020] The left and right sides of the axial flow fan 11 are connected with locking plates 12, the rear side of the diverter pipe 9 is provided with a locking groove corresponding to the locking plate 12, and the locking groove and the side wall of the locking plate 12 are provided with corresponding threaded holes, and the threaded holes are threadedly connected with bolts 13, which can facilitate the disassembly and assembly of the axial flow fan 11.

[0021] Two second fixed plates 14 are connected to the top of the other mounting plate 2, and sliding rods 15 are connected inside the two second fixed plates 14. The outer wall of the sliding rod 15 is connected to a sliding cylinder 16, and the side wall of the sliding cylinder 16 is connected to a second pull rod 17. The side wall of the heat dissipation base body 1 is provided with a second strip opening corresponding to the second pull rod 17, and the other end of the second pull rod 17 is connected to the side wall of the cleaning scraper 7. When the cleaning scraper 7 moves, it pulls the second pull rod 17 to make the second pull rod 17 slide in the second strip opening, and the second pull rod 17 pulls the sliding cylinder 16 to make the sliding cylinder 16 slide on the sliding rod 15, which can facilitate the limiting of the cleaning scraper 7.

[0022] Working principle of this utility model:

[0023] The micro motor 8 is used to drive the reciprocating screw 4 to rotate, and the reciprocating screw 4 drives the moving block 5 to move. The moving block 5 pulls the first pull rod 6, so that the first pull rod 6 slides in the first strip opening, and the first pull rod 6 pulls the cleaning scraper 7. The cleaning scraper 7 pulls the second pull rod 17 when moving, so that the second pull rod 17 slides in the second strip opening, and the second pull rod 17 pulls the slide 16, so that the slide 16 slides on the slide 15. The cleaning scraper 7 is used to clean the heat dissipation base body 1 back and forth, and the axial flow fan 11 is used to blow air, and the air is transported to the diversion pipe 9, and then the air is blown out through the air outlet 10 to blow the fins on the heat dissipation base body 1, thereby accelerating the heat dissipation efficiency of the heat dissipation base body 1.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat dissipation base plate for a frequency converter, comprising a heat dissipation base plate body, characterized in that: The left and right sides of the heat dissipation base body are connected to mounting plates, the top of one of the mounting plates is connected to two first fixed plates, a reciprocating screw is connected between the two first fixed plates, the outer wall of the reciprocating screw is connected to a moving block, the side wall of the moving block is connected to a first pull rod, the side wall of the heat dissipation base body is provided with a first strip opening corresponding to the first pull rod, the side wall of the first pull rod is connected to a cleaning scraper, the rear side of one of the first fixed plates is connected to a micro motor, and the output end of the micro motor is connected to the rear end of the reciprocating screw.

2. The heat dissipation base plate for a frequency converter according to claim 1, characterized in that: The rear side of the heat dissipation base plate body is connected with a diversion pipe, the front side of the diversion pipe is provided with a plurality of air outlet holes, and the side wall of the diversion pipe is connected with an axial flow fan.

3. The heat dissipation base plate for a frequency converter according to claim 2, characterized in that: The left and right sides of the axial fan are connected with locking plates, the rear side of the diverter pipe is provided with a locking groove corresponding to the locking plate, and the locking groove and the side wall of the locking plate are provided with corresponding threaded holes, and bolts are threadedly connected in the threaded holes.

4. The heat dissipation base plate for a frequency converter according to claim 1, characterized in that: Two second fixed plates are connected to the top of the other mounting plate, and sliding rods are connected inside the two second fixed plates. The outer wall of the sliding rod is connected to a sliding cylinder, and the side wall of the sliding cylinder is connected to a second pull rod. The side wall of the heat dissipation base plate body is provided with a second strip opening corresponding to the second pull rod, and the other end of the second pull rod is connected to the side wall of the cleaning scraper.

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