Anti-harmonic frequency conversion speed regulator

Abstract

The utility model relates to the technical field of variable-frequency speed regulators, and discloses an anti-harmonic variable-frequency speed regulator which comprises a speed regulator shell, the outer wall of the speed regulator shell is fixedly connected with a mounting frame, the outer wall of the mounting frame is fixedly connected with a fixed box, and the inner wall of the fixed box is slidably connected with a sliding disc. And one end of the sliding disc is fixedly connected with a first spring, the outer wall of the first spring is fixedly connected to the inner wall of the fixed box, the other end of the sliding disc is fixedly connected with a guide column, and the outer wall of the guide column is slidably connected to the interior of the mounting frame. According to the utility model, the pull handles at the two ends of the mounting frame are pulled to move outwards until the outer walls of the limiting blocks are in contact with the U-shaped blocks so as to drive the U-shaped blocks to move, and the U-shaped blocks drive the guide columns to slide outwards through the sliding discs until the clamping blocks are driven to be separated from the fixing grooves, so that the filter plates are detached and cleaned, and the purposes of regularly replacing and cleaning the filter plates are achieved; normal operation of a speed regulator heat dissipation system is ensured, heat dissipation efficiency is improved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of variable frequency speed regulators, in particular to an anti-harmonic variable frequency speed regulator. Background Art

[0002] Harmonics are non-sinusoidal voltage or current components in the power system. These harmonics can cause distortion of the voltage waveform in the power grid, affecting the stability of the power system and the normal operation of other equipment. The anti-harmonic frequency converter is a power electronic device that is mainly used to reduce harmonics in the power grid. Since the anti-harmonic frequency converter usually needs to process a large amount of electrical energy, a certain amount of heat will be generated during operation. Therefore, cooling hardware is usually required to ensure heat dissipation within the normal operating temperature range of the equipment. It usually uses heat sinks, fans, etc. to conduct heat through heat dissipation ports to achieve heat dissipation.

[0003] However, it is difficult to disassemble the filter plates of most current anti-harmonic frequency converters, and the filter plates will accumulate dust, debris or other dirt after long-term operation, thereby affecting the heat dissipation efficiency and service life of the hardware. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides an anti-harmonic frequency conversion speed regulator, which aims to improve the problem that it is difficult to disassemble the filter plate, and it is difficult to clean the dust, debris or other dirt accumulated on the filter plate, which affects the heat dissipation efficiency and service life of the hardware.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The cam is secured to the upper and lower surfaces of the frame, and the cam is secured to the bottom surface of the frame by a spring, which is fixedly connected to the frame by a spring.

[0007] Preferably, the pulling assembly includes a U-shaped block, the lower surface of the U-shaped block is fixedly connected to the outer wall of the sliding plate, the lower surface of the U-shaped block is slidably connected to the upper surface of the fixed box, the inside of the U-shaped block is rotatably connected to a pull handle, the outer wall of the pull handle is fixedly connected to a limiting block, and the outer wall of the limiting block is arranged on the outer wall of the U-shaped block.

[0008] Preferably, a support plate is fixedly connected to the interior of the speed regulator housing, and a slide groove is provided inside the support plate.

[0009] Preferably, the upper surface of the support plate is slidably connected to a bracket plate, the lower surface of the bracket plate is fixedly connected to a guide block, and the outer wall of the guide block is slidably connected to the inner wall of the slide groove.

[0010] Preferably, a push plate is provided on the outer wall of the bracket plate, a second spring is fixedly connected to the outer wall of the push plate, and the outer wall of the second spring is fixedly connected to the inner wall of the speed regulator housing.

[0011] Preferably, a fixing column is fixedly connected to the inner wall of the support plate, and a transmission plate is rotatably connected to the outer wall of the fixing column.

[0012] Preferably, an inclined block is fixedly connected to the upper surface of the transmission plate, and the outer wall of the inclined block is arranged on the inner wall of the slot.

[0013] Preferably, a handle is fixedly connected to the outer wall of the transmission plate, a third spring is fixedly connected to the inner wall of the transmission plate, and a bottom end of the third spring is fixedly connected to the inner wall of the support plate.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the handles at both ends of the installation frame are pulled outward until the outer wall of the limit block contacts the U-shaped block, thereby driving the U-shaped block to move, and the U-shaped block drives the guide column to slide outward through the sliding plate until the block is driven out of the fixed groove, so that the filter plate can be disassembled and cleaned, so as to achieve regular replacement and cleaning of the filter plate, ensure the normal operation of the speed regulator cooling system, improve the cooling efficiency and extend the life of the equipment.

[0016] 2. In the utility model, the handle is held tightly and pulled outward, and the handle drives the transmission plate to rotate clockwise, which can then drive the inclined block to disengage from the slot. At this time, the second spring rebounds, and the support plate can be pushed by the push plate to move again until it slides to the leftmost end of the slide slot on the outer wall of the guide block, so that the support plate can be pushed out of the inner wall of the speed regulator housing, so as to locate and handle faults more quickly, reduce maintenance time, and improve equipment reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of an anti-harmonic frequency conversion speed regulator proposed by the utility model;

[0018] Figure 2 A schematic diagram of a filter plate of an anti-harmonic frequency conversion speed regulator proposed by the utility model;

[0019] Figure 3A cross-sectional view of a fixing box of an anti-harmonic frequency conversion speed regulator proposed by the utility model;

[0020] Figure 4 A schematic diagram of a support plate of an anti-harmonic frequency conversion speed regulator proposed by the utility model;

[0021] Figure 5 The present invention is a schematic diagram of a handle of an anti-harmonic frequency conversion speed regulator proposed by the utility model.

[0022] Legend:

[0023] 1. Speed ​​governor housing; 2. Mounting frame; 3. Fixed box; 4. Slide plate; 5. First spring; 6. Guide column; 7. Clamp block; 8. Filter plate; 9. Fixed slot; 10. U-shaped block; 11. Pull handle; 12. Limit block; 13. Support plate; 14. Slide slot; 15. Bracket plate; 16. Guide block; 17. Clamp slot; 18. Push plate; 19. Second spring; 20. Fixed column; 21. Transmission plate; 22. Bevel block; 23. Handle; 24. Third spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings of the specification of this 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 of 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.

[0025] Reference Figure 1-Figure 3 The utility model provides an embodiment: an anti-harmonic frequency conversion speed regulator, including a speed regulator housing 1, the outer wall of the speed regulator housing 1 is fixedly connected with a mounting frame 2, the outer wall of the mounting frame 2 is fixedly connected with a fixing box 3, the inner wall of the fixing box 3 is slidably connected with a sliding plate 4, one end of the sliding plate 4 is fixedly connected with a first spring 5, the outer wall of the first spring 5 is fixedly connected to the inner wall of the fixing box 3, the other end of the sliding plate 4 is fixedly connected with a guide column 6, the outer wall of the guide column 6 is slidably connected to the inside of the mounting frame 2, the outer wall of the guide column 6 is fixedly connected with a card block 7, the outer wall of the card block 7 is slidably connected to the mounting frame 2, the inner wall of the mounting frame 2 is provided with a filter plate 8, the filter plate 8 is provided with a fixing groove 9 inside, the outer wall of the clamping block 7 is arranged on the inner wall of the fixing groove 9, the outer wall of the sliding plate 4 is provided with a pulling component, and the pulling component is used for disassembling the filter plate 8; the pulling component includes a U-shaped block 10, the lower surface of the U-shaped block 10 is fixedly connected to the outer wall of the sliding plate 4, the lower surface of the U-shaped block 10 is slidably connected to the upper surface of the fixing box 3, the U-shaped block 10 is internally rotatably connected with a pull handle 11, the outer wall of the pull handle 11 is fixedly connected to a limiting block 12, and the outer wall of the limiting block 12 is arranged on the outer wall of the U-shaped block 10;

[0026] Specifically, the speed regulator housing 1 has a fixed support function for the mounting frame 2, and the speed regulator housing 1 has an electromagnetic shielding function to ensure its normal operation and the safety of the surrounding environment, and the mounting frame 2 has a fixed support function for the fixed box 3, the fixed box 3 can support the sliding position of the sliding plate 4, and the sliding plate 4 has a fixed support function for the first spring 5, and the first spring 5 can push the sliding plate 4 to slide inward when rebounding, and then push the sliding plate 4 to move, and the mounting frame 2 can support the sliding position of the guide column 6, and at the same time, the guide column 6 has a fixed support function for the card block 7, and then the guide column 6 can drive the card block 7 to slide to the fixed groove 9 opened by the filter plate 8, thereby The filter plate 8 can be installed on the inner wall of the mounting frame 2 to ensure the heat dissipation environment inside the speed regulator housing 1 and prevent dust and other particles from entering the interior of the speed regulator housing 1 and affecting the normal operation of the hardware. At the same time, the sliding plate 4 has a fixed support function for the U-shaped block 10, and the U-shaped block 10 can support the rotation position of the pull handle 11. When the pull handle 11 is pulled to move outward, the pull handle 11 can drive the outer wall of the limit block 12 to fit with the U-shaped block 10, thereby driving the sliding plate 4 to move outward, so that the guide column 6 can drive the card block 7 to separate from the inner wall of the fixed groove 9 to disassemble the filter plate 8, which is convenient for cleaning and replacement of the filter plate 8, thereby ensuring the heat dissipation efficiency of the hardware.

[0027] Reference Figure 2-Figure 5 A support plate 13 is fixedly connected to the inside of the speed regulator housing 1, and a slide groove 14 is provided inside the support plate 13; a bracket plate 15 is slidably connected to the upper surface of the support plate 13, and a guide block 16 is fixedly connected to the lower surface of the bracket plate 15, and the outer wall of the guide block 16 is slidably connected to the inner wall of the slide groove 14; a push plate 18 is provided on the outer wall of the bracket plate 15, and a second spring 19 is fixedly connected to the outer wall of the push plate 18, and the outer wall of the second spring 19 is fixedly connected to the inner wall of the speed regulator housing 1;

[0028] Specifically, the speed regulator housing 1 has a fixed supporting function for the support plate 13, and the support plate 13 can support the sliding position of the bracket plate 15, and the bracket plate 15 is used to fix and support the position of hardware such as electronic components and modules, and the bracket plate 15 has a fixed supporting function for the guide block 16, the slide groove 14 can ensure the stability of the guide block 16 when sliding, and at the same time has a limiting effect on the sliding position of the guide block 16, the second spring 19 has a fixed supporting function for the push plate 18, and the second spring 19 can rebound through the speed regulator housing 1, thereby driving the push plate 18 to push the bracket plate 15 outward.

[0029] Reference Figure 1 , Figure 4 and Figure 5The inner wall of the support plate 13 is fixedly connected with a fixing column 20, and the outer wall of the fixing column 20 is rotatably connected with a transmission plate 21; the upper surface of the transmission plate 21 is fixedly connected with an inclined block 22, and the outer wall of the inclined block 22 is arranged on the inner wall of the slot 17; the outer wall of the transmission plate 21 is fixedly connected with a handle 23, and the inner wall of the transmission plate 21 is fixedly connected with a third spring 24, and the bottom end of the third spring 24 is fixedly connected to the inner wall of the support plate 13;

[0030] Specifically, the support plate 13 has a fixed supporting function for the fixing column 20, and the fixing column 20 can support the rotating position of the transmission plate 21, the transmission plate 21 has a fixed supporting function for the inclined block 22, and at the same time, when the inclined block 22 is on the inner wall of the slot 17, the position of the bracket plate 15 can be fixed to ensure its stability, the transmission plate 21 has a fixed supporting function for the handle 23, and when the handle 23 is pulled, the handle 23 can drive the transmission plate 21 to rotate clockwise on the outer wall of the fixing column 20, and then drive the inclined block 22 to separate from the inner wall of the slot 17, so that the bracket plate 15 can be ejected from the inside of the speed regulator housing 1 for quick maintenance, and at the same time, the transmission plate 21 has a fixed supporting function for the third spring 24, and when the third spring 24 rebounds through the handle 23, it can push the transmission plate 21 to rotate counterclockwise on the outer wall of the fixing column 20, thereby driving the inclined block 22 to slide to the inner wall of the slot 17, and the bracket plate 15 is limited and fixed.

[0031] Working principle: First, pull the handles 11 at both ends of the installation frame 2 and rotate them outward on the inner wall of the U-shaped block 10 until the outer wall of the limit block 12 contacts the outer wall of the U-shaped block 10, and then the U-shaped block 10 can be driven to move, and the U-shaped block 10 can drive the sliding plate 4 to slide on the inner wall of the fixed box 3, and then the sliding plate 4 can drive the guide column 6 to slide outward inside the installation frame 2 until the outer wall of the card block 7 is separated from the inner wall of the fixed groove 9, and then the technician can hold the handle on the upper surface of the filter plate 8 and pull it upward, so that the filter plate 8 can be moved. The movable filter plate 8 is disassembled from the inner wall of the mounting frame 2, which is convenient for cleaning the mounting frame 2 and ensuring the heat dissipation environment inside the speed regulator housing 1. At the same time, when the filter plate 8 is inserted into the inner wall of the mounting frame 2, the first spring 5 rebounds and can push the guide column 6 to move inward through the sliding plate 4, thereby driving the block 7 to slide to the inner wall of the fixing groove 9, so that the filter plate 8 can be fixedly installed. At the same time, when it is necessary to inspect the hardware inside the speed regulator housing 1, hold the handle 23 and pull it outward, and the handle 23 can drive the transmission plate 21 to move inward. The outer wall of the fixing column 20 rotates clockwise, thereby driving the inclined block 22 to disengage from the inner wall of the slot 17. At this time, the second spring 19 rebounds, and the support plate 15 can be pushed to slide on the upper surface of the support plate 13 through the push plate 18 until it slides to the leftmost end of the slide groove 14 on the outer wall of the guide block 16, so that the support plate 15 can be pushed out of the inner wall of the speed regulator housing 1, which is convenient for technicians to inspect and repair the hardware on the support plate 15. At the same time, when the support plate 15 is pushed into the inner wall of the speed regulator housing 1 until the outer wall of the guide block 16 When the wall slides to the rightmost end of the slide slot 14, the third spring 24 rebounds through the support plate 13, and can push the transmission plate 21 to rotate counterclockwise, thereby driving the inclined block 22 to slide to the inner wall of the slot 17, so as to fix the position of the bracket plate 15. That is, the speed regulator can not only achieve the effect of regularly replacing and cleaning the filter plate 8, ensuring the normal operation of the speed regulator cooling system, improving the cooling efficiency and extending the life of the equipment, but also achieve the effect of more rapid positioning and handling of faults, reducing maintenance time and improving equipment reliability.

[0032] 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. An anti-harmonic frequency conversion speed regulator, comprising a speed regulator housing (1), characterized in that: The outer wall of the speed regulator housing (1) is fixedly connected to a mounting frame (2), the outer wall of the mounting frame (2) is fixedly connected to a fixing box (3), the inner wall of the fixing box (3) is slidably connected to a sliding plate (4), one end of the sliding plate (4) is fixedly connected to a first spring (5), the outer wall of the first spring (5) is fixedly connected to the inner wall of the fixing box (3), the other end of the sliding plate (4) is fixedly connected to a guide column (6), the outer wall of the guide column (6) is slidably connected to the inside of the mounting frame (2), the outer wall of the guide column (6) is fixedly connected to a clamping block (7), the outer wall of the clamping block (7) is slidably connected to the inner wall of the mounting frame (2), the inner wall of the mounting frame (2) is provided with a filter plate (8), the filter plate (8) is provided with a fixing groove (9) inside, the outer wall of the clamping block (7) is arranged on the inner wall of the fixing groove (9), and the outer wall of the sliding plate (4) is provided with a pulling component, which is used for disassembling the filter plate (8).

2. The anti-harmonic frequency conversion speed regulator according to claim 1, characterized in that: The pulling assembly comprises a U-shaped block (10), the lower surface of the U-shaped block (10) is fixedly connected to the outer wall of the sliding plate (4), the lower surface of the U-shaped block (10) is slidably connected to the upper surface of the fixed box (3), the interior of the U-shaped block (10) is rotatably connected to a pulling handle (11), the outer wall of the pulling handle (11) is fixedly connected to a limiting block (12), and the outer wall of the limiting block (12) is arranged on the outer wall of the U-shaped block (10).

3. The anti-harmonic frequency conversion speed regulator according to claim 2 is characterized in that: A support plate (13) is fixedly connected to the interior of the speed regulator housing (1), and a slide groove (14) is provided inside the support plate (13).

4. The anti-harmonic frequency conversion speed regulator according to claim 3 is characterized in that: The upper surface of the support plate (13) is slidably connected to a bracket plate (15), the lower surface of the bracket plate (15) is fixedly connected to a guide block (16), and the outer wall of the guide block (16) is slidably connected to the inner wall of the slide groove (14).

5. The anti-harmonic frequency conversion speed regulator according to claim 4 is characterized in that: The outer wall of the support plate (15) is provided with a push plate (18), the outer wall of the push plate (18) is fixedly connected to a second spring (19), and the outer wall of the second spring (19) is fixedly connected to the inner wall of the speed regulator housing (1).

6. The anti-harmonic frequency conversion speed regulator according to claim 5, characterized in that: The inner wall of the support plate (13) is fixedly connected to a fixing column (20), and the outer wall of the fixing column (20) is rotatably connected to a transmission plate (21).

7. The anti-harmonic frequency conversion speed regulator according to claim 6, characterized in that: An inclined block (22) is fixedly connected to the upper surface of the transmission plate (21), and the outer wall of the inclined block (22) is arranged on the inner wall of the clamping groove (17).

8. The anti-harmonic frequency conversion speed regulator according to claim 7, characterized in that: The outer wall of the transmission plate (21) is fixedly connected with a handle (23), the inner wall of the transmission plate (21) is fixedly connected with a third spring (24), and the bottom end of the third spring (24) is fixedly connected to the inner wall of the support plate (13).

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