Energy-saving industrial fan dual-speed motor switching structure

Abstract

The utility model discloses energy -saving industrial fan double -speed motor switching structure belongs to double -speed motor adjusting technical field, applies on double -speed motor, and double -speed motor applies on the fan, including the shell of installing on double -speed motor, is provided with multiple electrode contact points in the shell, still includes: cleaning assembly, sets up in the shell, is used for cleaning before electrode contact point contact, including the connecting arm of sliding setting in the shell, and one brush board is fixedly arranged to the end of connecting arm, drive unit, set up in the shell, are used for driving electrode contact point contact, and drive unit drives electrode contact point contact simultaneously and drives the brush board movement, makes the equipment in the process of switching can effectively clean electrode contact point, guarantees the stability of electrode contact point.

Description

Technical Field

[0001] This utility model belongs to the field of dual-speed motor adjustment technology, and particularly relates to a dual-speed motor switching structure for energy-saving industrial fans. Background Technology

[0002] Against the backdrop of accelerated industrial automation and increasing demand for intelligent equipment, dual-speed motors are widely used in fields such as fans, pumps, and machine tools because they can flexibly adjust their speed under different operating conditions. Especially in the field of energy conservation and emission reduction of fans, they can adapt to different environments and achieve different speeds, resulting in more obvious energy-saving effects.

[0003] Traditional dual-speed motors primarily rely on changeover switches to regulate speed, switching the number of pole pairs by altering the stator winding connection. However, this method has significant drawbacks: at the moment of speed change, excessive current flows through the electrode posts, easily generating electric arcs. This leads to high-temperature erosion of the electrode posts, causing material vaporization, oxidation, and other corrosion phenomena, while also producing particulate matter on the electrode post surface. If not cleaned and maintained promptly, the continuous accumulation of corrosion products increases the contact resistance of the electrode posts, eventually resulting in abnormal power supply, severely affecting the normal operation of the motor, and even causing equipment failure and shutdown. This not only reduces production efficiency but also significantly increases maintenance costs and safety hazards. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides an energy-saving industrial fan dual-speed motor switching structure, which solves the problem that existing equipment cannot clean the electrode posts during switching, resulting in the accumulation of foreign objects on the surface of the electrode posts.

[0005] This utility model is implemented as follows: an energy-saving industrial fan dual-speed motor switching structure, applied to a dual-speed motor, the dual-speed motor being used in the fan, includes a housing mounted on the dual-speed motor, the housing having multiple sets of electrode contacts, and further includes:

[0006] A cleaning component, housed within a housing, is used for cleaning electrode contacts before they come into contact. It includes a connecting arm that slides within the housing, with a brush plate fixedly mounted at the end of the connecting arm.

[0007] The drive unit, located inside the housing, is used to drive the electrode contacts to make contact, and simultaneously drives the brush plate to move.

[0008] In a preferred embodiment of this invention, the electrode contacts include a positive electrode and a negative electrode, with the negative electrode fixed inside the housing and the positive electrode rotated inside the housing via a swing assembly.

[0009] As a preferred embodiment of this invention, the swing assembly includes a rotating column rotatably disposed within the housing, on which two arc-shaped insulated rotating arms are fixedly disposed, and the positive pole is fixed between the two rotating arms.

[0010] As a preferred embodiment of this utility model, a damping disc for limiting the rotation of the rotating column is provided on one side. There are two damping discs, and the rotating column passes through the two damping discs. One of the damping discs is fixed on the rotating column, and the other damping disc is fixed on the inner wall of the outer shell.

[0011] As a preferred embodiment of this invention, the brush plate has two symmetrical grooves, and the grooves have the same shape as the electrode contacts.

[0012] As a preferred embodiment of the present invention, the driving unit includes a moving component for driving the brush plate to move and a power component for driving the rotating column to rotate, wherein when the power component drives the rotating column to rotate, the moving component is driven simultaneously.

[0013] As a preferred embodiment of this invention, the movable component includes a threaded rod rotatably disposed within the housing, a slider threadedly connected to the threaded rod, a connecting arm fixedly disposed on the slider, and a torsion spring sleeved on the threaded rod for its reset.

[0014] In a preferred embodiment of this utility model, the power assembly includes a fixed rod fixedly disposed within the housing. A connecting assembly connected to a rotating column is disposed on the fixed rod. The connecting assembly includes a rotating sleeve rotatably disposed on the fixed rod. A full gear is mounted on the rotating sleeve, and the rotating sleeve is drive-connected to the rotating column. A drive source is installed within the housing, and an electric telescopic rod is fixedly connected to the output end of the drive source. Two half gears are disposed on the drive source, located at the output end of the drive source and on the electric telescopic rod, respectively. One half gear engages movably with the full gear, and the other half gear engages movably with a one-way wheel disposed within the housing, and the one-way wheel is drive-connected to a threaded rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention utilizes a drive unit within the device to effectively drive the positive pole to oscillate. Simultaneously, the position of the drive unit can be changed as needed to quickly switch the rotation speed of the dual-speed motor. During the switching process, the positive and negative poles are effectively cleaned based on the oscillation pattern of the positive pole, preventing prolonged current input that could lead to a large amount of foreign matter on the electrode contact surface, resulting in poor contact. Furthermore, during adjustment, the gap created during adjustment can effectively change the fan speed, preventing instantaneous current input that could alter the internal current and affect the lifespan of the fan's internal components. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front view structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model from a partial right-side view. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the internal structure of this utility model from a partial left-side view.

[0020] Figure 4 This is a schematic diagram of the internal structure of this utility model from a partial right-side view. Figure 2 .

[0021] In the picture:

[0022] 1. Dual-speed motor; 2. Fan; 3. Housing; 4. Electrode contacts; 5. Connecting arm; 6. Brush plate; 7. Groove; 8. Rotating column; 9. Rotating arm; 10. Damping disc; 11. Threaded rod; 12. Slider; 13. Torsion spring; 14. One-way wheel; 15. Fixed rod; 16. Rotating sleeve; 17. Full gear; 18. Drive source; 19. Electric telescopic rod; 20. Half gear. Detailed Implementation

[0023] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0024] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] like Figures 1 to 4 As shown in the figure, the energy-saving industrial fan dual-speed motor switching structure provided in this embodiment of the utility model is applied to a dual-speed motor 1, which is applied to a fan 2. It includes a housing 3 mounted on the dual-speed motor 1, with multiple sets of electrode contacts 4 disposed inside the housing 3, and further includes:

[0026] A cleaning component, housed inside the housing 3, is used for cleaning the electrode contacts 4 before they come into contact. It includes a connecting arm 5 that is slidably disposed inside the housing 3, and a brush plate 6 that is fixedly disposed at the end of the connecting arm 5.

[0027] The drive unit is located inside the housing 3 and is used to drive the electrode contacts 4 to make contact. At the same time, the drive unit drives the brush plate 6 to move while driving the electrode contacts 4 to make contact.

[0028] As a preferred embodiment of this utility model, the electrode contact 4 includes a positive pole and a negative pole. The negative pole is fixed inside the housing 3, and the positive pole is rotatably set inside the housing 3 through a swing assembly, which facilitates the replacement and connection of different electrode contacts 4, thereby effectively changing the rotation speed of the dual-speed motor 1 and realizing its speed regulation.

[0029] As a preferred embodiment of this utility model, the swing assembly includes a rotating column 8 rotatably disposed within the housing 3, and two arc-shaped insulated rotating arms 9 are fixedly disposed on the rotating column 8, with the positive pole fixed between the two rotating arms 9, which can effectively change the position of the positive pole, so that the positive pole and the negative pole can be opened and closed, thereby making adjustments.

[0030] As a preferred embodiment of this utility model, a damping disk 10 for limiting the rotation of the rotating column 8 is provided on one side. There are two damping disks 10, and the rotating column 8 passes through the two damping disks 10. One damping disk 10 is fixed on the rotating column 8, and the other damping disk 10 is fixed on the inner wall of the outer shell 3, which facilitates the positioning of the rotating column 8, thereby ensuring that the positive and negative poles form a normally open or normally closed state.

[0031] As a preferred embodiment of this utility model, the brush plate 6 has two symmetrical grooves 7, and the grooves 7 have the same shape as the electrode contacts 4, which makes it easier for the brush plate 6 to clean the electrode contacts 4 when it passes over them, thereby further reducing impurities on their surface.

[0032] As a preferred embodiment of the present invention, the driving unit includes a moving component for driving the brush plate 6 to move and a power component for driving the rotating column 8 to rotate. When the power component drives the rotating column 8 to rotate, the moving component is driven at the same time, which can effectively drive the brush plate 6 to move and change the contact state of the electrode contact 4.

[0033] As a preferred embodiment of this utility model, the movable component includes a threaded rod 11 rotatably disposed within the housing 3, a slider 12 threadedly connected to the threaded rod 11, a connecting arm 5 fixedly disposed on the slider 12, and a torsion spring 13 sleeved on the threaded rod 11 for resetting, so that after the brush plate 6 has finished cleaning, it can be reset to one side of the inner wall of the housing 3 to prevent the brush plate 6 from obstructing the internal parts.

[0034] As a preferred embodiment of this utility model, the power assembly includes a fixed rod 15 fixedly disposed within the housing 3. A connecting assembly connected to the rotating column 8 is disposed on the fixed rod 15. The connecting assembly includes a rotating sleeve 16 rotatably disposed on the fixed rod 15. A full gear 17 is mounted on the rotating sleeve 16, and the rotating sleeve 16 is pulsatorically connected to the rotating column 8. A drive source 18 is installed inside the housing 3, and an electric telescopic rod 19 is fixedly connected to the output end of the drive source 18. Two half gears 20 are disposed on the drive source 18, located at the output end of the drive source 18 and on the electric telescopic rod 19, respectively. One half gear 20 is movably meshed with the full gear 17, and the other half gear 20 is movably meshed with a one-way wheel 14 disposed within the housing 3. The one-way wheel 14 is pulsatorically connected to the threaded rod 11. This enables the device to change the state of the electrode contact 4 while driving the brush plate 6 to clean the electrode contact 4, ensuring the stability of its contact.

[0035] The working principle of this utility model:

[0036] refer to Figure 2 The initial position of the brush plate 6 is located on one side of the inner wall of the housing 3. When it is necessary to connect the electrode contact 4, the following operations can be performed, as shown in the reference. Figure 3 First, the electric telescopic rod 19 is extended, causing it to push the half gear 20 to move to the electrode contact 4 that needs adjustment. At the same time, the half gear 20 will mesh with the full gear 17 corresponding to the electrode contact 4.

[0037] refer to Figure 3During the descent process, the drive source 18 (selecting an existing drive motor) is then controlled to rotate the two half gears 20. The gaps on the two half gears 20 are staggered, meaning that when one half gear 20 drives the full gear 17 to rotate, the other half gear 20 will not drive the one-way wheel 14 to rotate. At this time, the half gear 20 drives the rotating sleeve 16 to rotate through the full gear 17, and the rotating sleeve 16 drives the rotating column 8 to rotate, causing the rotating arm 9 mounted on the rotating column 8 to gradually move the positive pole to the negative pole. When the rotating arm 9 rotates to a certain angle, the half gear 20 meshing with the full gear 17 begins to disengage. At this time, the half gear 20 meshing with the one-way wheel 14 drives the one-way wheel 14 to drive the threaded rod 11 to rotate. Since the torsion spring 13 is sleeved on the threaded rod 11, with one end fixed to the inner wall of the outer casing 3 and the other end fixed to the threaded rod 11, the torsion spring 13 will be compressed when the threaded rod 11 rotates. The slider 12 connected to the threaded rod 11 moves toward the drive source 18. At the same time, the fixed rod 15 pulls the connecting arm 5 to move the brush plate 6. When the brush plate 6 moves to the positive and negative poles, the positive and negative poles will be located in the grooves 7 opened on the brush plate 6. At the same time, the brush plate 6 and the grooves 7 polish the surfaces of the positive and negative poles to ensure that the surfaces are clean. When the one-way wheel 14 disengages from the meshing half gear 20, the torsion spring 13 drives the threaded rod 11 to rotate in the opposite direction to reset it. At the same time, the other half gear 20 drives the full gear 17 to rotate again, which can drive the rotating column 8 to rotate again, so that the positive and negative poles come into contact. The half gear 20 meshing with the full gear 17 does not drive the full gear 17 to rotate. During the idling process, the rotation speed of the dual-speed motor 1 can be reduced to avoid sudden connection to different electrode contacts 4, which would cause unstable internal current and damage to its internal parts.

[0038] refer to Figure 3 During the upward process, since the one-way wheel 14 is one-way, when the drive source 18 drives the half gear 20 to rotate in the opposite direction, the half gear 20 meshing with the one-way wheel 14 will not drive the one-way wheel 14 to rotate, and thus will not drive the brush plate 6 to move. At this time, the separation of the positive and negative poles can be guaranteed.

[0039] This invention effectively drives the positive pole to swing through the drive unit in the device. Simultaneously, the position of the drive unit can be changed as needed to quickly switch the rotation speed of the dual-speed motor 1. During the switching process, the positive and negative poles can be effectively cleaned according to the swing of the positive pole, preventing prolonged current input from causing a large amount of foreign matter to accumulate on the surface of the electrode contacts 4, resulting in poor contact. Furthermore, during the adjustment process, the speed of the fan 2 and the dual-speed motor 1 can be changed through the gap created during adjustment, avoiding instantaneous current input that could cause changes in the internal current and affect the service life of the internal components of the fan 2.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving industrial fan dual-speed motor switching structure, applied to a dual-speed motor (1), wherein the dual-speed motor (1) is applied to a fan (2), comprising a housing (3) mounted on the dual-speed motor (1), wherein multiple sets of electrode contacts (4) are provided inside the housing (3), characterized in that: Also includes: A cleaning component, disposed inside the housing (3), is used for cleaning the electrode contacts (4) before they come into contact, including a connecting arm (5) that is slidably disposed inside the housing (3), and a brush plate (6) is fixedly disposed at the end of the connecting arm (5). The drive unit is located inside the housing (3) and is used to drive the electrode contacts (4) to make contact. At the same time, the drive unit drives the brush plate (6) to move while driving the electrode contacts (4) to make contact.

2. The energy-saving industrial fan dual-speed motor switching structure as described in claim 1, characterized in that: The electrode contact (4) includes a positive pole and a negative pole. The negative pole is fixed inside the housing (3), and the positive pole is rotatably set inside the housing (3) by a swing assembly.

3. The energy-saving industrial fan dual-speed motor switching structure as described in claim 2, characterized in that: The swing assembly includes a rotating column (8) rotatably disposed inside the housing (3), on which two arc-shaped insulated rotating arms (9) are fixedly disposed, and the positive pole is fixed between the two rotating arms (9).

4. The energy-saving industrial fan dual-speed motor switching structure as described in claim 3, characterized in that: A damping disc (10) for limiting the rotation column (8) is provided on one side. There are two damping discs (10), and the rotation column (8) passes through the two damping discs (10). One of the damping discs (10) is fixed on the rotation column (8), and the other damping disc (10) is fixed on the inner wall of the outer shell (3).

5. The energy-saving industrial fan dual-speed motor switching structure as described in claim 4, characterized in that: The brush plate (6) has two symmetrical grooves (7), and the grooves (7) have the same shape as the electrode contacts (4).

6. The energy-saving industrial fan dual-speed motor switching structure as described in claim 5, characterized in that: The drive unit includes a moving component for driving the brush plate (6) to move and a power component for driving the rotating column (8) to rotate, and the moving component is driven at the same time when the power component drives the rotating column (8) to rotate.

7. The energy-saving industrial fan dual-speed motor switching structure as described in claim 6, characterized in that: The moving component includes a threaded rod (11) rotatably disposed within a housing (3), a slider (12) threadedly connected to the threaded rod (11), a connecting arm (5) fixedly disposed on the slider (12), and a torsion spring (13) sleeved on the threaded rod (11) for its reset.

8. The energy-saving industrial fan dual-speed motor switching structure as described in claim 7, characterized in that: The power assembly includes a fixed rod (15) fixedly installed inside the housing (3). A connecting assembly connected to a rotating column (8) is provided on the fixed rod (15). The connecting assembly includes a rotating sleeve (16) rotatably installed on the fixed rod (15). A full gear (17) is installed on the rotating sleeve (16), and the rotating sleeve (16) is drivenly connected to the rotating column (8). A drive source (18) is installed inside the housing (3), and an electric telescopic rod (19) is fixedly connected to the output end of the drive source (18). Two half gears (20) are provided on the drive source (18), which are located at the output end of the drive source (18) and the electric telescopic rod (19), respectively. One of the half gears (20) is movably meshed with the full gear (17), and the other half gear (20) is movably meshed with a one-way wheel (14) installed inside the housing (3), and the one-way wheel (14) is drivenly connected to a threaded rod (11).

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