Precise speed regulating mechanism of fan motor

Abstract

The utility model relates to the technical field of fan accessories, in particular to a precise speed regulation mechanism of a fan motor, which comprises the fan motor, one end of the fan motor is provided with a mounting disc, and the outer wall of the fan motor is provided with a precise speed regulation box. According to the utility model, the fan motor can be stably mounted and fixed through the mounting disc at one end part of the fan motor; the precise speed regulation box mounted on the outer wall provides a key structure for realizing precise speed regulation; an adjusting knob on the outer wall of the precise speed adjusting box is convenient for a user to directly operate to adjust the speed; the built-in annular rheostat and the adjusting knob are coaxially arranged, so that the adjusting accuracy and stability are ensured; a rotating shifting piece is arranged on the rotating shaft of the adjusting knob, so that the adjusting action can be effectively transmitted; and a rotating seat for fixing the adjusting knob is mounted at the bottom in the precise speed regulation box, so that the adjusting knob can rotate smoothly and is stable in position, and precise speed regulation of the fan motor is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of fan accessories, and specifically relates to a precise speed regulation mechanism for a fan motor. Background Technique

[0002] With the rapid development of modern technology, as an important device for heat dissipation and ventilation, fan motors have been widely used in various electronic products, household appliances, and industrial equipment. In order to meet the usage requirements in different scenarios, the speed regulation function of fan motors is particularly important. Traditional fan motor speed regulation methods often cannot achieve precise control of the rotation speed. For example, through simple switch control, the fan can only switch between the fully open and fully closed states and cannot achieve continuous speed regulation; while resistor voltage division regulation can change the rotation speed to a certain extent, but the adjustment range is limited and the accuracy is low, which cannot meet the application scenarios with high requirements for wind speed. Content of the Utility Model

[0003] The purpose of the utility model is to provide a precise speed regulation mechanism for a fan motor to solve the problem that traditional fan motor speed regulation methods often cannot achieve precise control of the rotation speed proposed in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A precise speed regulation mechanism for a fan motor includes a fan motor. An installation disk is arranged at one end of the fan motor, and a precise speed regulation box is installed on the outer wall of the fan motor.

[0006] The precise speed regulation box includes an adjustment knob arranged on the outer wall. The precise speed regulation box internally contains a ring-shaped rheostat. The ring-shaped rheostat is coaxially arranged with the adjustment knob. A rotating dial is installed on the rotating shaft of the adjustment knob. A rotating seat for fixing the adjustment knob is installed at the bottom inside the precise speed regulation box.

[0007] Preferably, an outer housing is arranged outside the fan motor, and a mounting seat for fixing the precise speed regulation box is installed on the outer housing.

[0008] Preferably, fixing bolts are installed at the four top corners of the installation disk.

[0009] Preferably, an insulating outer housing is sleeved on the outer wall of the adjustment knob, and a plurality of uniformly and equidistantly arranged anti-slip tooth grooves are opened on the outer wall of the insulating outer housing.

[0010] Preferably, a rotating column is coaxially connected to the bottom of the adjustment knob and is rotationally connected to the rotating seat.

[0011] Preferably, one end of the rotating paddle is provided with a square hole for inserting and mating with the rotating column, and the cross-sections of the rotating column and the square hole are both square.

[0012] Preferably, both the rotating paddle and the rotating seat are made of metal conductive materials, and the bottom of the rotating seat is connected to the power supply through a wire.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. In the precise speed regulation mechanism of this fan motor, through the mounting plate at one end of the fan motor, the fan motor can be stably installed and fixed. And the precise speed regulation box installed on the outer wall provides the key structure for realizing precise speed regulation. The adjustment knob on the outer wall of the precise speed regulation box facilitates the user to directly operate for speed regulation. The built-in annular rheostat is coaxially arranged with the adjustment knob to ensure the accuracy and stability of the adjustment. The rotating paddle installed on the rotating shaft of the adjustment knob can effectively transmit the adjustment action. The rotating seat for fixing the adjustment knob installed at the bottom inside the precise speed regulation box ensures that the adjustment knob can rotate smoothly and is stable in position, thereby realizing the precise speed regulation of the fan motor.

[0015] 2. In the precise speed regulation mechanism of this fan motor, an outer housing is provided outside the fan motor, which enhances the structural strength of the fan motor and also provides additional protection to prevent external factors such as dust and moisture from invading the internal mechanism and affecting the normal operation of the fan motor. An installation seat for fixing the precise speed regulation box is installed on the outer housing, enabling the precise speed regulation box to be firmly installed on the fan motor and maintaining its stable position even when the fan is running at high speed, thereby ensuring the accuracy and reliability of the speed regulation function.

[0016] 3. In the precise speed regulation mechanism of this fan motor, an insulating outer housing is sleeved on the outer wall of the adjustment knob, and a plurality of uniformly and equidistantly arranged anti-slip tooth grooves are provided on the outer wall of the insulating outer housing, increasing the friction between the user's hand and the knob, making it more stable and not prone to slipping when adjusting the speed, and improving the accuracy and comfort of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are further explained in detail together with the embodiments of the present utility model, but do not constitute a limitation to the present utility model.

[0018] Figure 1 is the structural schematic diagram of the present utility model;

[0019] Figure 2 is the circuit control schematic diagram of the present utility model;

[0020] Figure 3This is the exploded structural schematic diagram of the speed control knob of the present utility model;

[0021] The meanings of each label in the figure are as follows:

[0022] 10. Fan motor; 11. Outer housing; 12. Mounting seat;

[0023] 20. Mounting plate; 21. Fixing bolt;

[0024] 30. Precision speed control box; 31. Speed control knob; 32. Ring-shaped rheostat; 33. Rotating paddle; 34. Rotating seat; 35. Anti-slip tooth groove; 36. Square hole; 37. Rotating column;

[0025] 40. Power supply. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model and the accompanying drawings of the specification. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] A precision speed control mechanism for a fan motor, as Figures 1 - 3As shown in the figure, it includes a fan motor 10. An installation disk 20 is provided at one end of the fan motor 10, and a precise speed regulation box 30 is installed on the outer wall of the fan motor 10. The precise speed regulation box 30 includes an adjustment knob 31 provided on the outer wall. The precise speed regulation box 30 internally contains a ring rheostat 32. The ring rheostat 32 is coaxially arranged with the adjustment knob 31. A rotating dial 33 is installed on the rotating shaft of the adjustment knob 31. A rotating seat 34 for fixing the adjustment knob 31 is installed at the bottom inside the precise speed regulation box 30. Through the installation disk 20 at one end of the fan motor 10, the fan motor 10 can be stably installed and fixed. And the precise speed regulation box 30 installed on the outer wall provides a key structure for realizing precise speed regulation. The adjustment knob 31 on the outer wall of the precise speed regulation box 30 facilitates direct operation by the user for speed regulation. The internally installed ring rheostat 32 is coaxially arranged with the adjustment knob 31 to ensure the accuracy and stability of the adjustment. The rotating dial 33 installed on the rotating shaft of the adjustment knob 31 can effectively transmit the adjustment action. The rotating seat 34 installed at the bottom inside the precise speed regulation box 30 for fixing the adjustment knob 31 ensures that the adjustment knob 31 can rotate smoothly and is in a stable position, thereby realizing the precise speed regulation of the fan motor.

[0029] Furthermore, an outer housing 11 is provided outside the fan motor 10, which enhances the structural strength of the fan motor and also provides additional protection to prevent external factors such as dust and moisture from invading the internal mechanism and affecting the normal operation of the fan motor. An installation seat 12 for fixing the precise speed regulation box 30 is installed on the outer housing 11, enabling the precise speed regulation box 30 to be firmly installed on the fan motor and maintaining its stable position even when the fan is running at high speed, thereby ensuring the accuracy and reliability of the speed regulation function.

[0030] It should be noted that fixing bolts 21 are installed at the four top corners of the installation disk 20, which not only provides a firm connection between the installation disk 20 and the fan motor or other fixing structures, but also allows for easy disassembly and reassembly during installation or maintenance, enhancing the maintainability and flexibility of the equipment.

[0031] Among them, an insulating outer housing is sleeved on the outer wall of the adjustment knob 31, and a number of uniformly and equidistantly arranged anti-slip tooth grooves 35 are provided on the outer wall of the insulating outer housing, increasing the friction between the user's hand and the knob, making it more stable and not prone to slipping when adjusting the speed, and improving the accuracy and comfort of the operation.

[0032] Specifically, a rotating column 37 that is rotatably connected to the rotating seat 34 is coaxially connected to the bottom of the adjustment knob 31. A square hole 36 that is inserted and matched with the rotating column 37 is provided at one end of the rotating dial 33. The cross-sections of the rotating column 37 and the square hole 36 are both square, ensuring the precise connection and synchronous rotation between the adjustment knob 31 and the rotating dial 33.

[0033] In addition, both the rotating paddle 33 and the rotating base 34 are made of metal conductive materials, enabling them to serve as part of the circuit, effectively transmitting current, and achieving precise control of the fan motor speed. The bottom of the rotating base 34 is connected to the power supply 40 through a wire, allowing the user to change the resistance value in the circuit by rotating the adjustment knob 31, thereby adjusting the speed of the fan motor.

[0034] The working principle of the precise speed regulation mechanism of this fan motor:

[0035] First, the fan motor 10 is stably installed and fixed in the required position through the mounting plate 20 provided at one end of the fan motor 10.

[0036] Then, when the user needs to adjust the fan speed, the user directly operates the adjustment knob 31 on the outer wall of the precise speed regulation box 30.

[0037] When operating the adjustment knob 31, the rotating paddle 33 installed on its rotating shaft will move accordingly.

[0038] Since the ring-shaped rheostat 32 is coaxially arranged with the adjustment knob 31, the rotation of the adjustment knob 31 will drive the ring-shaped rheostat 32 to change the resistance value.

[0039] At the same time, the rotating base 34 installed at the inner bottom of the precise speed regulation box 30 for fixing the adjustment knob 31 ensures that the adjustment knob 31 can rotate smoothly and is in a stable position, thereby achieving precise speed regulation of the fan motor 10.

[0040] The above shows and describes the basic principle, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A precise speed regulation mechanism for a fan motor, comprising a fan motor (10), characterized in that: One end of the fan motor (10) is provided with a mounting plate (20), and a precision speed control box (30) is installed on the outer wall of the fan motor (10); The precision speed control box (30) includes an adjustment knob (31) arranged on the outer wall. The precision speed control box (30) internally contains a ring rheostat (32). The ring rheostat (32) is coaxially arranged with the adjustment knob (31). A rotating dial (33) is installed on the rotating shaft of the adjustment knob (31). A rotating seat (34) for fixing the adjustment knob (31) is installed at the bottom inside the precision speed control box (30).

2. The precise speed regulation mechanism of the fan motor according to claim 1, characterized in that: An outer housing (11) is arranged outside the fan motor (10), and a mounting seat (12) for fixing the precision speed control box (30) is installed on the outer housing (11).

3. The precise speed regulation mechanism of the fan motor according to claim 1, characterized in that: Fixing bolts (21) are installed at the four top corners of the mounting plate (20).

4. The precise speed regulation mechanism of the fan motor according to claim 1, characterized in that: An insulating outer housing is sleeved on the outer wall of the adjustment knob (31), and a plurality of anti-slip tooth grooves (35) are evenly and equidistantly arranged on the outer wall of the insulating outer housing.

5. The precise speed regulation mechanism of the fan motor according to claim 1, wherein: A rotating column (37) which is rotationally connected with the rotating seat (34) is coaxially connected to the bottom of the adjustment knob (31).

6. The precise speed control mechanism of the fan motor according to claim 5, characterized in that: A square hole (36) which is inserted and matched with the rotating column (37) is formed at one end of the rotating dial (33). The cross-sections of the rotating column (37) and the square hole (36) are both square.

7. The precise speed regulation mechanism of the fan motor according to claim 1, characterized in that: The rotating dial (33) and the rotating seat (34) are both made of metal conductive materials. The bottom of the rotating seat (34) is connected to a power supply (40) through a wire.

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