Multi-gear speed regulation switch

Abstract

The utility model provides a multi-gear speed regulation switch (1) for controlling the running speed of a motor, which comprises a panel (2), a knob (3) arranged on the front side of the panel (2) and used for controlling the running speed of the motor, a chassis (4) detachably coupled with the panel (2), and a speed regulation mechanism (9) linked with the knob (3), so that different gears can be regulated. The speed regulation mechanism (9) comprises a frequency conversion circuit so as to control the running speed of the motor by changing the power frequency. The speed control switch (1) further comprises a mounting plate (10) arranged to be mounted to the chassis (4). The chassis (4) is provided with a first recessed portion (8), and the mounting plate (10) is coupled with the chassis (4) and closes the recessed portion (8) and together forms an inner cavity (11) for accommodating the speed regulating mechanism (9). The speed regulation switch is small in size and easy to install, improves speed regulation precision and efficiency, and is suitable for speed regulation of ceiling fans for families and commercial purposes.

Description

Technical Field

[0001] The utility model relates to a motor speed regulating switch, and more specifically to a knob-type multi-gear speed regulating switch for a DC ceiling fan. Background Art

[0002] With the advancement of technology, the control requirements for ceiling fans in home and commercial environments are becoming more and more sophisticated. DC ceiling fans usually use multi-speed permanent magnet synchronous motors, and their on / off and operating status are controlled by the drive system. Users can manually control the ceiling fan through a wired wall speed controller or a wireless remote control. Traditional speed controllers have gradually failed to meet the requirements of modern life due to their large size, complex production procedures, and low efficiency.

[0003] Existing wall-controlled speed regulators generally include a splitter and a speed control circuit board (PCB). These components are usually designed as independent components and need to be connected by welding wires or using plugs. This design exposes each component to the outside, which makes the overall size of the speed control switch larger and increases the risk of wiring errors and poor contact. Traditional ceiling fan speed control switches use capacitor speed regulators for speed control. These speed regulators are usually large in size and require a combination of different capacitors to achieve different speed gears. This design is not only complicated to install, but also prone to problems such as poor wire connection or even loosening due to manual wiring, affecting the stability of use and service life. In addition, the limitation of the physical volume of the above-mentioned capacitor also restricts the miniaturization design of the entire speed control switch.

[0004] Therefore, the prior art urgently needs a new type of speed regulating switch with a more compact structure and higher integration to solve the above problems. In addition, the market also needs a speed regulating switch that can omit manual wiring and reduce problems caused by poor or loose wiring. Utility Model Content

[0005] In order to solve the problems existing in the prior art and achieve the above objectives, the utility model provides an improved knob-type multi-speed regulating switch.

[0006] The speed control switch of the utility model provides a simple, reliable and user-friendly interface through optimized design, and provides an efficient speed control solution for DC ceiling fans. By integrating the gear circuit board and the gear switch into a closed cavity and integrating them with the chassis, the integration of the product is significantly improved. According to one aspect of the utility model, a multi-gear speed control switch for controlling the running speed of a motor is provided, characterized in that it includes:

[0007] A panel having a knob on the front for controlling the motor operating speed;

[0008] a chassis configured to be detachably coupled to the panel;

[0009] A speed regulating mechanism, which is arranged to be linked to the knob so as to be adjusted to different gears, and the speed regulating mechanism includes a frequency conversion circuit to control the running speed of the motor by changing the power supply frequency;

[0010] a mounting plate configured to be mounted to the chassis;

[0011] The chassis is provided with a first recessed portion, and the mounting plate is coupled with the chassis and closes the recessed portion, and together forms an inner cavity to accommodate the speed regulating mechanism.

[0012] In some embodiments, the speed regulating switch includes a mainboard controller, and a plurality of electronic components are disposed inside the speed regulating switch, and are configured to output current waveform detection signals in stages to the mainboard controller.

[0013] In some embodiments, the mainboard controller changes the operating speed of the motor by programming the control chip, and the operating speed of the motor depends on the frequency set by the mainboard controller.

[0014] In some embodiments, the chassis is provided with a plurality of coupling mechanisms for corresponding to the panels so that the panels can be detachably linked to the chassis.

[0015] In some embodiments, the motor is a permanent magnet synchronous motor of a DC ceiling fan, and the speed regulating switch is configured to control the operating speed of the DC ceiling fan.

[0016] In some embodiments, the speed regulation mechanism further includes a gear adjustment device mechanically connected to the knob, the gear adjustment device includes a speed regulation circuit board and a speed regulation arm actuated by the knob, and the speed regulation circuit board is provided with conductive contacts corresponding to multiple preset speeds.

[0017] In some embodiments, the speed regulating arm is equipped with a conductive moving plate. Through the rotation of the speed regulating arm, one end of the moving plate is in continuous electrical contact with the annular contact end on the speed regulating circuit board, and the other end of the moving plate selectively contacts with a plurality of conductive contacts arranged on the speed regulating circuit board.

[0018] In some embodiments, a second recessed portion is provided on the chassis, and the second recessed portion is used to accommodate the speed regulating arm and form a space adapted for the rotation of the speed regulating arm.

[0019] In some embodiments, the second recessed portion is hexagonal, and each corner of the hexagon corresponds to each of the gear positions.

[0020] In some embodiments, spring-biased plungers are provided at both ends of the speed regulating arm, and the plungers are biased outward along the length direction of the speed regulating arm to generate outward pressure and act on the inner wall of the hexagon. Based on the force, the speed regulating arm is stabilized in each of the gear positions.

[0021] The speed control switch of the utility model adopts electronic frequency conversion technology, which can not only control the running speed of the fan more accurately, but also omits the traditional capacitor, making the entire speed control switch structure more compact, greatly reducing the volume, and facilitating installation and layout. In addition, this technology can also achieve instant switching of different speed gears, providing a fast response speed, thereby greatly improving the user experience. At the same time, compared with traditional capacitor speed regulators, the electrical noise generated during the speed regulation process has also been significantly reduced, further enhancing the comfort of the product. In addition, there is also a need in the market for a speed control switch that can omit manual wiring and reduce problems caused by poor or loose wiring. The design of the utility model just meets this demand and provides a solution that is easy to install and more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In further description, in order to more clearly understand the purpose, technical solution and advantages of the utility model, the utility model is further described in detail with reference to the accompanying drawings, wherein:

[0023] Figure 1 A front perspective view showing a speed regulating switch according to an embodiment of the utility model;

[0024] Figure 2 A back perspective view showing the speed regulating switch;

[0025] Figure 3a To show the front exploded view of the speed regulating switch;

[0026] Figure 3b To show the exploded view of the back of the speed control switch;

[0027] Figure 4a , Figure 4b , Figure 4c Display the position status of the speed regulating mechanism in different gears respectively; and

[0028] Figure 5 A three-dimensional diagram showing the internal structure of the chassis. DETAILED DESCRIPTION

[0029] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings so that those skilled in the art can better understand and implement the present invention.

[0030] The utility model discloses a knob-type multi-speed regulating switch 1 for a DC ceiling fan. Figure 1 As shown, the speed control switch 1 has a panel 2, and a knob 3 is provided on the front of the panel. The user can select between gears 0 to 5 through the knob 2, where gear 0 is the off state and gears 1 to 5 are different operating speeds of the ceiling fan. The design of the knob 2 takes ergonomics into consideration, and is easy to hold and rotate. The rotation of the knob 3 can actuate the internal speed control mechanism to adjust the switch and speed of the ceiling fan.

[0031] The multi-speed speed control switch of the utility model adopts electronic frequency conversion technology, which can more accurately control the running speed of the fan. Electronic frequency conversion speed control technology is a method of controlling the speed of an AC motor by changing the power frequency supplied to the AC motor. This technology has been widely used in many application fields that require speed control, such as in household appliances and industrial equipment. Applying this technology to a wall switch allows the user to control the speed of the motor device connected to the switch through simple operations. Specifically, the speed control switch is provided with a plurality of electronic components, which output current waveform detection signals to the mainboard controller in stages, and the motor speed can be changed by programming the control chip. The speed of the motor depends on the frequency set by the controller.

[0032] In some embodiments, to ensure safe and reliable operation of the system, the electronic variable frequency speed regulation switch may be integrated with corresponding electrical protection mechanisms. These protection measures may include overcurrent protection, overvoltage protection, short circuit protection, etc., which can disconnect the power supply in time when an abnormal situation occurs to protect the motor and electronic components from damage. Electronic variable frequency speed regulation provides users with a better user experience, including more accurate speed control, higher energy efficiency and better durability.

[0033] Figure 2 The back structure of the speed control switch 1 is shown. The back of the speed control switch 1 faces the wall when installed. The chassis 4, which is detachably coupled to the panel 2, provides the basic structure of the entire speed control switch. The chassis 4 is provided with a plurality of fixing points 5 for mounting the speed control switch 1 on a wall or other flat surface. The structure on the back of the chassis 4 is usually not visible to the user, and these fixing points 5 ensure the stability and safety of the installation. The chassis 4 is provided with electrical connection terminals 6, which are respectively connected to the live wire and the ground wire. The electrical connection terminals 6 can be connection terminals fixed with screws to simplify the installation procedure. The chassis 4 is provided with a plurality of coupling mechanisms 7 for corresponding panels 2. According to this embodiment, the coupling mechanism 7 is a spring hook and a card slot that cooperate with each other. The coupling mechanism 7 facilitates the detachable connection of the panel 2 to the chassis 4 so as to repair the speed control switch 1. A first recessed portion 8 is provided in the center of the chassis 4 to accommodate a speed control mechanism 9 located therein (see Figure 3a ).

[0034] Figure 3a and Figure 3bAn exploded view of the internal structure of the speed control switch 1 is provided. In order to reveal the internal structure more clearly, the panel 2 and the knob 3 are omitted in the figure. Figure 3a The front view of the speed regulating switch 1 is shown, revealing the assembly of the mounting plate 10, the speed regulating mechanism 9, and the chassis 4. The mounting plate 10 and the chassis 4 together form an inner cavity 11 for accommodating the speed regulating mechanism 9. Specifically, the chassis 4 has a rectangular recessed portion 8, and the mounting plate 10 is coupled to the chassis 4 and closes the recessed portion 8 to form the inner cavity 11. The speed regulating mechanism 9 is placed in the inner cavity 11. The edges of the mounting plate 10 and the recessed portion 8 are generally flat and parallel to the surface of the chassis 4. The design of the chassis 4 not only meets the structural fixation requirements, but also takes into account the layout of the internal structural parts, ensuring that the components can be accurately aligned during the installation process, and providing a solid foundation for the assembly of the speed regulating switch 1.

[0035] Figure 4a , Figure 4b and Figure 4c The states of the speed regulating mechanism 9 in different gear positions are respectively shown. The speed regulating mechanism 9 comprises a speed regulating circuit board 12, a speed regulating arm 13 and a moving plate 14. Figure 4a The speed regulating arm 13 is shown to be in a closed state. Figure 4b The speed regulating arm 13 is shown to be in the fifth gear position, and Figure 4c The speed regulating arm 13 is shown to be in the 4th gear. The design of the speed regulating circuit board 12 itself takes into account the requirements of the integrated frequency conversion circuit, which not only requires sufficient physical space to install the required electronic components, but also ensures effective wiring of the circuit and optimized electrical performance. In some embodiments, the speed regulating circuit board 12 can adopt a single-sided board or a double-sided board design, and the speed regulating electronic components can include solid-state components, such as transistors, thyristors, etc., to improve the accuracy and response speed of speed regulation.

[0036] according to Figure 3a and Figure 3bThe speed regulating arm 13 is fixedly connected to the knob 3 through the central axis 15, and the central axis 15 extends along the axial direction of the rotation of the speed regulating arm 13. A circular hole 16 is respectively provided on the mounting plate 10 and the chassis 4, which allows the speed regulating arm 13 to be rotatably supported through the central axis 15. The central axis 15 is arranged to pass through the opening 12a on the speed regulating circuit board 12. The movable piece 14 fixed on the speed regulating arm 13 rotates accordingly, and one end of the movable piece 14 is designed to be in continuous electrical contact with the annular contact end 17 on the speed regulating circuit board 12, even when the speed regulating arm 13 rotates. The other end of the movable piece 14 can selectively make electrical contact with a plurality of conductive contacts 18a, 18b, 18c, 18d, and 18e representing different speeds provided on the speed regulating circuit board 12. By turning the knob 3, the user can drive the movable piece 14 on the speed regulating arm 13 to rotate and move, and make one of the conductive contacts 18a, 18b, 18c, 18d, and 18e form an electrical connection with the annular contact end 17. When the user turns the knob 3, the speed regulating arm 13 moves between different conductive contacts, and each conductive contact corresponds to a specific speed gear of the ceiling fan. In this way, by turning the knob 3 to different positions, different circuit connections can be selected, and the current or voltage to the fan motor can be changed through the processing of the variable frequency speed regulating circuit (not shown) on the speed regulating circuit board 12 to achieve multi-speed switching of the fan speed. In general, this mechanism effectively simplifies the internal structure, reduces the failure points, greatly improves the reliability and durability of use, and also simplifies the mechanical structure of the speed regulating switch, its manufacturing and installation procedures.

[0037] In some preferred embodiments of the present invention, both ends of the speed regulating arm 13 may be equipped with spring biased plungers, steel balls or similar mechanisms (not shown). These plungers are designed to be biased outward along the length of the speed regulating arm 13 to generate outward pressure. The purpose of this design is to enable the speed regulating arm 13 to obtain stable positioning when rotating to different gears, ensuring that it can remain in the selected gear when the user adjusts the speed, and will not deviate due to hand shaking or machine vibration.

[0038] according to Figure 5As shown, the chassis 4 is specially designed with a second recessed portion 19 for the speed regulating arm 13, which not only supports a part of the speed regulating mechanism 9, but also forms a structure that adapts to the space required when the speed regulating arm 13 rotates. In order to improve the positioning accuracy of the speed regulating arm 13, the second recessed portion 19 can be set to a hexagonal shape, and each of its corners 19a, 19b, 19c, 19d, 19e, 19f corresponds to a specific speed gear. When the speed regulating arm 13 rotates and aligns with a certain gear, the spring biased plunger acts on the corresponding corner of the hexagonal space, and the top of the plunger contacts the corner of the hexagon, generating outward pressure and acting on the inner wall 20 of the hexagon. Based on the force, the plunger force is stuck at the corner of the hexagon to resist unintentional rotation or vibration, so as to stably position the speed regulating arm 13 at the currently selected gear.

[0039] In addition, preferably, the spring biased plunger can provide clear "click" feedback, and when the user turns the speed adjustment arm 13 to a new gear, the user can clearly feel the correct positioning on the gear. Such feedback is user-friendly, easy to operate, and does not rely on visual confirmation, ensuring that the user can accurately adjust the required fan speed even without looking at the switch. Through this design, not only the convenience and accuracy of user operation are improved, but also the reliability and durability of the entire speed adjustment system are improved, thereby extending the overall service life of the product.

[0040] In the present utility model, an improved speed regulating switch is proposed, which adopts electronic frequency conversion technology, and significantly improves the structural integration and speed regulating efficiency compared with the traditional design that relies on capacitors for speed regulation. In the traditional speed regulator, the capacitor exists as an independent component and needs to be electrically connected through additional procedures and wiring, which not only increases the assembly complexity, but also increases the failure rate and manufacturing cost. The design of the present utility model greatly simplifies the internal structure by integrating the speed regulating circuit board and the speed regulating mechanism in a closed cavity and integrating it with the chassis, omitting the traditional capacitor and complex wiring requirements.

[0041] The benefits of this integrated design are obvious: first, it reduces problems caused by poor or loose wiring, improving product reliability and safety. Second, due to the reduction in physical space occupied, the size of the entire speed switch can be greatly reduced, making installation and layout more flexible and convenient. Furthermore, the response speed is rapidly improved, and users can switch between different speed gears instantly, improving the user experience. Finally, the electronic frequency conversion technology can significantly reduce the electrical noise generated during the speed regulation process compared to traditional capacitor speed regulators, reducing interference with the power grid and other electrical equipment.

[0042] Through the optimized design of the above structure, the wall-controlled speed switch of the utility model not only solves the problems existing in the prior art, but also provides a more compact, efficient and reliable solution, which is suitable for the refined demand for ceiling fan control in modern home and commercial environments. This integrated speed switch is undoubtedly a major innovation in the field of speed regulation technology. Its simplified installation process, reduced size and cost, and improved stability and safety make it a highly competitive product on the market.

[0043] The speed regulating switch of the utility model simplifies the installation process, reduces the volume and cost, and improves the stability and safety of the product through the above design. The design is easy to manufacture and has good market application prospects. Although the utility model has been disclosed in more specific embodiments, it should be understood that these are only examples and are not intended to limit the scope of the utility model. For those skilled in the art, various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements should all belong to the protection scope of the utility model.

Claims

1. A multi-speed regulating switch for controlling the running speed of a motor, characterized in that: include: A panel having a knob on the front for controlling the motor operating speed; a chassis configured to be detachably coupled to the panel; A speed regulating mechanism, which is arranged to be linked to the knob so as to be adjusted to different gears, and the speed regulating mechanism includes a frequency conversion circuit to control the running speed of the motor by changing the power supply frequency; a mounting plate configured to be mounted to the chassis; The chassis is provided with a first recessed portion, and the mounting plate is coupled with the chassis and closes the recessed portion, and together forms an inner cavity to accommodate the speed regulating mechanism.

2. The speed regulating switch according to claim 1, characterized in that: The speed regulating switch comprises a mainboard controller, and a plurality of electronic components are arranged inside the speed regulating switch, and are configured to output current waveform detection signals to the mainboard controller in stages.

3. The speed regulating switch according to claim 2, characterized in that: The mainboard controller changes the running speed of the motor by programming the control chip, and the running speed of the motor depends on the frequency set by the mainboard controller.

4. The speed regulating switch according to claim 1, characterized in that: The chassis is provided with a plurality of coupling mechanisms for corresponding to the panels so that the panels can be detachably linked to the chassis.

5. The speed regulating switch according to claim 1, characterized in that: The motor is a permanent magnet synchronous motor of a DC ceiling fan, and the speed regulating switch is configured to control the running speed of the DC ceiling fan.

6. The speed regulating switch according to claim 1, characterized in that: The speed regulating mechanism further comprises a gear adjusting device mechanically connected to the knob, wherein the gear adjusting device comprises a speed regulating circuit board and a speed regulating arm actuated by the knob, and the speed regulating circuit board is provided with conductive contacts corresponding to a plurality of preset speeds.

7. The speed regulating switch according to claim 6, characterized in that: The speed regulating arm is equipped with a conductive moving plate. Through the rotation of the speed regulating arm, one end of the moving plate is in continuous electrical contact with the annular contact end on the speed regulating circuit board, and the other end of the moving plate selectively contacts with a plurality of conductive contacts arranged on the speed regulating circuit board.

8. The speed regulating switch according to claim 6, characterized in that: The chassis is provided with a second recessed portion, which is used to accommodate the speed regulating arm and forms a space adapted for the rotation of the speed regulating arm.

9. The speed regulating switch according to claim 8, characterized in that: The second recessed portion is hexagonal, and each corner of the hexagon corresponds to each of the gear positions.

10. The speed regulating switch according to claim 9, characterized in that: Spring-biased plungers are provided at both ends of the speed regulating arm. The plungers are biased outward along the length direction of the speed regulating arm to generate outward pressure and act on the inner wall of the hexagon. Based on the force, the speed regulating arm is stabilized in each of the gear positions.

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