Variable-frequency variable-speed fan device

Abstract

The utility model relates to the technical field of variable-frequency and variable-speed fans, and discloses a variable-frequency and variable-speed fan device which is characterized in that a control assembly is arranged, an output shaft of a motor drives a circular plate to rotate, and a cross rod and a circular block which are fixed on the surface of the circular plate synchronously rotate; a sliding block connected to the surface of the circular block abuts against the inner wall of an arc-shaped rod in the rotating process of the circular block, when the arc-shaped rod is stressed, a supporting block and a connecting block fixed to the surface of the arc-shaped rod drive a rack to slide on the surface of a gear, and the gear is stressed to drive the circular rod and a scraper to rotate; the rotary scraping plate can scrape impurities adhering to the surface of the filter plate, meanwhile, due to the fact that the supporting block does transverse reciprocating motion, the scraping plate can achieve cleaning in different directions, the complex and diverse pollutant distribution conditions can be better dealt with, and the cleaning efficiency is improved. In this way, the risk of local deformation or damage of the filter plate due to long-term single rotation direction can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of variable - frequency and variable - speed fans, and particularly relates to a variable - frequency and variable - speed fan device. Background Technique

[0002] A variable - frequency and variable - speed fan is a fan device with advanced control functions. It can flexibly change the rotation speed of the fan according to actual needs, thereby achieving precise control of the air volume and air pressure. Through frequency conversion regulation, unnecessary energy waste can be avoided, and the best energy consumption ratio can be achieved under different working conditions. At the same time, it runs smoothly, can effectively reduce vibration and noise, and provides a more stable operating state.

[0003] It has a wide range of applications in industrial production, ventilation and air - change, air - conditioning systems, etc. For example, in the ventilation system of a factory, the rotation speed of the fan can be adjusted in real time according to the requirements of the production process, achieving the dual goals of energy conservation and meeting ventilation requirements; in the air - conditioning system, the air volume can be automatically adjusted according to the change of indoor temperature, providing a comfortable environment while reducing energy consumption.

[0004] In order to prevent external dust from entering the fan, the existing variable - frequency and variable - speed fan devices usually have a filter plate on the surface of the fan to block external dust and impurities and prevent damage to the impeller. During the long - term use of the variable - frequency and variable - speed fan in the factory, a large amount of dust will accumulate on the surface of the filter plate. If it is not cleaned in time, problems such as reduced ventilation efficiency, increased energy consumption, and overheating of the equipment will occur, thus affecting the normal use of the fan. To solve this problem, we propose a variable - frequency and variable - speed fan device. Content of the Utility Model

[0005] The purpose of the utility model is to provide a variable - frequency and variable - speed fan device to solve the problems raised in the above - mentioned background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A variable - frequency and variable - speed fan device, including a variable - frequency and variable - speed fan body. An impeller is arranged inside the variable - frequency and variable - speed fan body. A filter plate is fixedly installed on the surface of the variable - frequency and variable - speed fan body. An air duct opening is fixedly installed on the surface of the variable - frequency and variable - speed fan body. A fixing frame is fixedly installed on the surface of the variable - frequency and variable - speed fan body. The fixing frame is internally provided with a control component and a driven component, including:

[0007] A scraper, a round rod is fixedly installed on the surface of the scraper. The scraper is attached to the surface of the filter plate. The round rod penetrates through the support plate and is rotatably connected to the support plate. The support plate is fixedly installed on the inner wall of the fixing frame;

[0008] A gear, the gear is fixedly installed on the surface of a round rod, the gear meshes with a rack, the surface of the rack is slidably connected to the surface of an L-shaped plate, the L-shaped plate is fixedly installed on the surface of a support plate, and a chute is provided on the surface of the L-shaped plate;

[0009] A rotating member, a rotating member that rotates is provided inside the fixed frame, and this method can reduce the risk of local deformation or damage of the filter plate caused by long-term single rotation direction.

[0010] Preferably, the rotating member includes: a connecting block, one end of the connecting block is fixedly installed on the surface of the rack, the other end of the connecting block is fixedly installed on the surface of a support block, and when the support block moves, the connecting block can drive the rack to move synchronously.

[0011] Preferably, an arc-shaped rod is fixedly installed on the surface of the support block, the inner wall of the arc-shaped rod fits with a slider, the surface of the slider is rotatably connected to a round block, and when the slider abuts against the inner wall of the arc-shaped rod, the support block fixed to the surface of the arc-shaped rod can move.

[0012] Preferably, a cross bar is fixedly installed on the surface of the round block, a round plate is fixedly installed on the surface of the cross bar, the round plate is rotatably connected to the inner wall of the fixed frame, a motor is fixedly installed on the surface of the fixed frame, and the output shaft of the motor is fixedly connected to the surface of the round plate. The output column of the motor can drive the round plate to rotate on the surface of the fixed frame.

[0013] Preferably, the driven assembly includes: a flat bar, the flat bar penetrates through the support plate and is slidably connected to the support plate, one end of a spring is fixedly connected to the surface of the support plate, the other end of the spring is fixedly installed on the surface of the flat bar, and when the flat bar is abutted, it can move horizontally in the support plate under the support of the spring.

[0014] Preferably, the cross-sectional shape of the flat bar is trapezoidal, and the trapezoidal flat bar moves horizontally in the support plate when abutted.

[0015] Preferably, a vertical bar is fixedly installed on the surface of the flat bar, a knocking bar is fixedly installed on the surface of the vertical bar, and when the flat bar moves, the vertical bar can drive the knocking bar to move horizontally synchronously.

[0016] Compared with the prior art, the present utility model provides a variable-frequency and variable-speed fan device, which has the following

[0017] Beneficial effects:

[0018] 1. In this variable-frequency and variable-speed fan device, by setting a control component, the output shaft of the motor drives a circular plate to rotate. The cross bars and circular blocks fixed on the surface of the circular plate rotate synchronously. During the rotation of the circular block, the slider connected to the surface of the circular block contacts the inner wall of the arc-shaped rod. When the arc-shaped rod is stressed, the support block and the connecting block fixed on the surface of the arc-shaped rod drive the rack to slide on the surface of the gear. The stressed gear drives the round rod and the scraper to rotate. The rotating scraper can scrape off the impurities adhering to the surface of the filter plate. At the same time, since the support block moves horizontally in a reciprocating manner, the scraper can clean in different directions, which can better cope with complex and diverse pollutant distribution situations. This method can reduce the risk of local deformation or damage of the filter plate caused by long-term single rotation direction.

[0019] 2. In this variable-frequency and variable-speed fan device, by setting a driven component, when the support block moves, it contacts the cross-section of the flat rod. The cross-section of the flat rod is trapezoidal, so the flat rod can be stressed and move horizontally under the support of the spring. The vertical rod fixed on the surface of the flat rod can drive the knocking rod to intermittently knock on the surface of the filter plate. This method helps to loosen the pollutants adhering tightly and facilitates subsequent cleaning and removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a front view structural schematic diagram of the present utility model;

[0021] Figure 2 is a front view sectional structural schematic diagram of the present utility model;

[0022] Figure 3 is a top view structural schematic diagram of the present utility model;

[0023] Figure 4 is a structural schematic diagram of the control component of the present utility model;

[0024] Figure 5 is a structural schematic diagram of the driven component of the present utility model.

[0025] In the figure: 1. Variable-frequency and variable-speed fan body; 2. Impeller; 3. Filter plate; 4. Air duct opening; 5. Fixed frame; 6. Control component; 61. Scraper; 62. Round rod; 63. Support plate; 64. Gear; 65. Rack; 66. L-shaped plate; 67. Chute; 68. Rotating part; 681. Connecting block; 682. Support block; 683. Arc-shaped rod; 684. Slider; 685. Circular block; 686. Cross bar; 687. Circular plate; 688. Motor; 7. Driven component; 71. Flat rod; 72. Spring; 73. Vertical rod; 74. Knocking rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] As Figures 1 - 5As shown in the figure, the present utility model provides a technical solution: a variable-frequency and variable-speed fan device, which includes a variable-frequency and variable-speed fan body 1. An impeller 2 is arranged inside the variable-frequency and variable-speed fan body 1. A filter plate 3 is fixedly installed on the surface of the variable-frequency and variable-speed fan body 1. An air duct opening 4 is fixedly installed on the surface of the variable-frequency and variable-speed fan body 1. A fixing frame 5 is fixedly installed on the surface of the variable-frequency and variable-speed fan body 1. A control component 6 and a driven component 7 are arranged inside the fixing frame 5, including: a scraper 61, a round rod 62, a support plate 63, a gear 64, a rack 65, an L-shaped plate 66, a chute 67, and a rotating part 68.

[0027] A round rod 62 is fixedly installed on the surface of the scraper 61. The scraper 61 is in contact with the surface of the filter plate 3. The round rod 62 penetrates through the support plate 63 and is rotatably connected to the support plate 63. The support plate 63 is fixedly installed on the inner wall of the fixing frame 5. The gear 64 is fixedly installed on the surface of the round rod 62. The gear 64 meshes with the rack 65. The surface of the rack 65 is slidably connected to the surface of the L-shaped plate 66. The L-shaped plate 66 is fixedly installed on the surface of the support plate 63. A chute 67 is formed on the surface of the L-shaped plate 66. A rotating part 68 that rotates is arranged inside the fixing frame 5. The setting of the chute 67 can ensure the stable movement of the rack 65 and avoid the situation of the rack 65 shaking. The cross bar 686 fixed on the surface of the round plate 687 rotates synchronously. The cross bar 686 and the round block 685 fixed on the surface of the round plate 687 rotate synchronously. During the rotation of the round block 685, the slider 684 connected to the surface of the round block 685 touches the inner wall of the arc-shaped rod 683. When the arc-shaped rod 683 is stressed, the support block 682 and the connecting block 681 fixed on the surface of the arc-shaped rod 683 will drive the rack 65 to slide on the surface of the gear 64. The gear 64 is stressed to drive the round rod 62 and the scraper 61 to rotate. The rotating scraper 61 can scrape off the impurities adhering to the surface of the filter plate 3. At the same time, since the support block 682 performs a horizontal reciprocating motion, the scraper 61 can achieve cleaning in different directions, which can better cope with complex and diverse pollutant distribution situations. This method can reduce the risk of local deformation or damage of the filter plate 3 caused by long-term single rotation direction.

[0028] The rotating member 68 includes: a connecting block 681, one end of the connecting block 681 is fixedly installed on the surface of the rack 65, and the other end of the connecting block 681 is fixedly installed on the surface of the supporting block 682. When the supporting block 682 moves, the connecting block 681 can drive the rack 65 to move synchronously. An arc-shaped rod 683 is fixedly installed on the surface of the supporting block 682, the inner wall of the arc-shaped rod 683 is in contact with the slider 684, and the surface of the slider 684 is rotatably connected to the round block 685. When the slider 684 abuts against the inner wall of the arc-shaped rod 683, the supporting block 682 fixed on the surface of the arc-shaped rod 683 can move. A cross bar 686 is fixedly installed on the surface of the round block 685, a round plate 687 is fixedly installed on the surface of the cross bar 686, the round plate 687 is rotatably connected to the inner wall of the fixed frame 5, a motor 688 is fixedly installed on the surface of the fixed frame 5, the output shaft of the motor 688 is fixedly connected to the surface of the round plate 687, and the output column of the motor 688 can drive the round plate 687 to rotate on the surface of the fixed frame 5. The driven assembly 7 includes: a flat rod 71, the flat rod 71 penetrates through the support plate 63 and is slidably connected to the support plate 63. One end of a spring 72 is fixedly connected to the surface of the support plate 63, and the other end of the spring 72 is fixedly installed on the surface of the flat rod 71. When the flat rod 71 is abutted, it can move horizontally in the support plate 63 under the support of the spring 72. The cross-sectional shape of the flat rod 71 is trapezoidal, and the trapezoidal flat rod 71 moves horizontally in the support plate 63 when it is abutted. A vertical rod 73 is fixedly installed on the surface of the flat rod 71, a knocking rod 74 is fixedly installed on the surface of the vertical rod 73, and when the flat rod 71 moves, the vertical rod 73 can drive the knocking rod 74 to move horizontally synchronously.

[0029] In the present utility model, during use, the impeller 2 within the variable frequency and variable speed blower body 1 rotates to drive the air flow, suck air through the air duct opening 4 and send it out from the air outlet. The filter plate 3 serves to filter impurities in the air and keep the air clean. The entire system works in coordination to achieve the efficient and flexible operation of the variable frequency and variable speed blower body 1. When the filter plate 3 has been filtering for a long time, a large amount of dust will accumulate on the surface of the filter plate 3. When it is necessary to clean the surface of the filter plate 3, start the motor 688 on the surface of the fixing frame 5. The output shaft of the motor 688 drives the circular plate 687 to rotate, and the cross bar 686 fixed on the surface of the circular plate 687 rotates synchronously. The cross bar 686 and the circular block 685 fixed on the surface of the circular plate 687 rotate synchronously. During the rotation of the circular block 685, the slider 684 connected to the surface of the circular block 685 touches the inner wall of the arc-shaped rod 683. When the arc-shaped rod 683 is stressed, the support block 682 and the connecting block 681 fixed on the surface of the arc-shaped rod 683 will drive the rack 65 to slide on the surface of the gear 64. The gear 64 is stressed to drive the round rod 62 and the scraper 61 to rotate. The rotating scraper 61 can scrape off the impurities adhered to the surface of the filter plate 3. At the same time, since the support block 682 performs a horizontal reciprocating motion, the scraper 61 can achieve cleaning in different directions, which can better cope with the complex and diverse distribution of pollutants. This method can reduce the risk of local deformation or damage of the filter plate 3 caused by long-term single rotation direction. At the same time, when the support block 682 moves, it will touch the section surface of the flat rod 71. The section surface shape of the flat rod 71 is trapezoidal, so the flat rod 71 can be stressed to move horizontally under the support of the spring 72. The vertical rod 73 fixed on the surface of the flat rod 71 can drive the knocking rod 74 to intermittently knock on the surface of the filter plate 3. This method helps to loosen the pollutants adhered more tightly and facilitate subsequent cleaning and removal.

[0030] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, modifications or improvements made without departing from the spirit and concept of the present utility model are within the protection scope of the present utility model.

Claims

1. A variable frequency and variable speed fan device, comprising a variable frequency and variable speed fan body (1), characterized in that: Inside the variable-frequency and variable-speed fan body (1), an impeller (2) is provided. A filter plate (3) is fixedly installed on the surface of the variable-frequency and variable-speed fan body (1). An air duct opening (4) is fixedly installed on the surface of the variable-frequency and variable-speed fan body (1). A fixing frame (5) is fixedly installed on the surface of the variable-frequency and variable-speed fan body (1). The fixing frame (5) is internally provided with a control component (6) and a driven component (7), including: A scraper (61), a round rod (62) is fixedly installed on the surface of the scraper (61). The scraper (61) is in contact with the surface of the filter plate (3). The round rod (62) penetrates through the support plate (63) and is rotatably connected to the support plate (63). The support plate (63) is fixedly installed on the inner wall of the fixing frame (5); A gear (64), the gear (64) is fixedly installed on the surface of the round rod (62). The gear (64) meshes with a rack (65). The surface of the rack (65) is slidably connected to the surface of an L-shaped plate (66). The L-shaped plate (66) is fixedly installed on the surface of the support plate (63). A chute (67) is formed on the surface of the L-shaped plate (66); A rotating member (68), a rotating member (68) that rotates is provided inside the fixing frame (5).

2. The variable-frequency and variable-speed fan device according to claim 1, wherein: The rotating member (68) includes: a connecting block (681), one end of the connecting block (681) is fixedly installed on the surface of the rack (65). The other end of the connecting block (681) is fixedly installed on the surface of a support block (682).

3. The variable-frequency and variable-speed fan device according to claim 2, characterized in that: An arc-shaped rod (683) is fixedly installed on the surface of the support block (682). The inner wall of the arc-shaped rod (683) is in contact with a slider (684). The surface of the slider (684) is rotatably connected to a round block (685).

4. The variable-frequency and variable-speed fan device according to claim 3, characterized in that: A cross bar (686) is fixedly installed on the surface of the round block (685). A round plate (687) is fixedly installed on the surface of the cross bar (686). The round plate (687) is rotatably connected to the inner wall of the fixing frame (5). A motor (688) is fixedly installed on the surface of the fixing frame (5). The output shaft of the motor (688) is fixedly connected to the surface of the round plate (687).

5. A variable-frequency and variable-speed fan device according to claim 1, characterized in that: The driven component (7) includes: a flat rod (71), the flat rod (71) penetrates through the support plate (63) and is slidably connected to the support plate (63). One end of a spring (72) is fixedly connected to the surface of the support plate (63). The other end of the spring (72) is fixedly installed on the surface of the flat rod (71).

6. The variable-frequency and variable-speed fan device according to claim 5, wherein: The cross-sectional shape of the flat rod (71) is trapezoidal.

7. The variable frequency and variable speed fan device according to claim 5, characterized in that: A vertical rod (73) is fixedly installed on the surface of the flat rod (71). A knocking rod (74) is fixedly installed on the surface of the vertical rod (73).

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