Reciprocating and oscillating mechanism and fan

Abstract

This invention relates to the field of household appliance technology, specifically to a reciprocating oscillating mechanism and a fan. The reciprocating oscillating mechanism includes: a main motor, comprising a motor body, a main shaft disposed on one side of the motor body and adapted to be fixedly connected to a fan head, a transmission shaft disposed on the other side of the motor body and integrated with the main shaft, and a rotary shaft disposed on the lower side of the motor body; a chassis, having an external gear and an internal gear at different heights, and a connecting part on the chassis that mates with the rotary shaft, the rotary shaft being rotatably disposed on the connecting part, the axes of the external gear and the internal gear being collinear with the axis of the connecting part; and a transmission assembly disposed between the transmission shaft and the chassis, the transmission assembly including a gear shaft, a first sector gear disposed on the gear shaft and adapted to mesh with the internal gear, and a second sector gear adapted to mesh with the external gear.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, specifically to a reciprocating oscillating mechanism and a fan. Background Technology

[0002] Most fans on the market today have a left-right oscillation function. However, driving a fan to oscillate left and right requires at least one motor, and driving the fan to rotate requires another motor. Therefore, to achieve both rotation and oscillation, at least two motors are needed, which results in higher fan costs. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the high cost of fans in the prior art, thereby providing a reciprocating oscillating mechanism and fan that can reduce the number of motors and thus reduce costs.

[0004] To solve the above-mentioned technical problems, the present invention provides a reciprocating oscillating mechanism, comprising: a main motor, including a motor body, a main shaft disposed on one side of the motor body and adapted to be fixedly connected to a fan head, a transmission shaft disposed on the other side of the motor body and integrally connected to the main shaft, and a rotary shaft disposed on the lower side of the motor body; a chassis, having an external gear and an internal gear, the external gear and the internal gear being at different heights, the chassis having a connecting part that cooperates with the rotary shaft, the rotary shaft being rotatably disposed on the connecting part, the axes of the external gear and the internal gear being collinear with the axis of the connecting part; and a transmission assembly disposed between the transmission shaft and the chassis, the transmission assembly including a gear shaft, a first sector gear disposed on the gear shaft and adapted to mesh with the internal gear, and a second sector gear adapted to mesh with the external gear, the transmission assembly having a first state in which the first sector gear meshes with the internal gear and a second state in which the second sector gear meshes with the external gear, the first state and the second state alternating when the gear shaft rotates.

[0005] Optionally, the transmission shaft is provided with helical teeth to form a worm gear, and the transmission assembly includes: a first transmission member, including a first shaft, a worm wheel disposed on the first shaft, and a first cylindrical gear disposed on the first shaft, wherein the worm wheel is meshed with the worm gear; and a second transmission member, including the gear shaft, the first sector gear, the second sector gear, and a second cylindrical gear disposed on the gear shaft, wherein the second cylindrical gear is meshed with the first cylindrical gear.

[0006] Optionally, the reciprocating oscillating mechanism further includes a gearbox housing, which is fixedly connected to the motor body. The gearbox housing has a first shaft hole adapted to the first shaft, and the first shaft is rotatably disposed in the first shaft hole.

[0007] Optionally, the gearbox housing is provided with a plurality of screw posts, and the gearbox housing is connected to the motor body by screws.

[0008] Optionally, the gearbox housing is provided with a second shaft hole adapted to the gear shaft, and the gear shaft is rotatably disposed in the second shaft hole.

[0009] Optionally, the reciprocating oscillating mechanism further includes a gearbox cover, which is disposed on top of the gearbox housing and fixedly connected to the gearbox housing.

[0010] Optionally, the connecting part is a rotary shaft hole, and the rotary shaft is rotatably disposed in the rotary shaft hole.

[0011] Optionally, the transmission ratio between the internal gear and the first sector gear is i1, and the transmission ratio between the external gear and the second sector gear is i2, where i1 = i2.

[0012] The present invention also provides a fan, including the aforementioned reciprocating oscillating mechanism.

[0013] The technical solution of this invention has the following advantages:

[0014] The reciprocating oscillating mechanism provided by this invention only requires one main motor, which can realize both the rotation and oscillation of the fan head. It has a small number of motors, a simple structure, and a low cost. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the reciprocating oscillating mechanism connected to a fan head provided in Embodiment 1 of the present invention;

[0017] Figure 2 for Figure 1 Exploded view;

[0018] Figure 3 A schematic diagram of the main motor;

[0019] Figure 4 This is a schematic diagram of the chassis structure;

[0020] Figure 5 This is a schematic diagram of the structure of the first transmission component;

[0021] Figure 6 This is a schematic diagram of the second transmission component;

[0022] Figure 7 This is a schematic diagram of the gearbox housing.

[0023] Figure 8 for Figure 7 Top view;

[0024] Figure 9 This is a schematic diagram showing the first sector gear meshing with the internal gear.

[0025] Figure 10 This is a schematic diagram of the second sector gear meshing with the external gear.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Fan head; 2. Main motor; 201. Motor body; 202. Main shaft; 203. Worm gear; 204. Rotary shaft; 3. Chassis; 301. External gear; 302. Internal gear; 303. Rotary shaft hole; 4. First transmission component; 401. First shaft; 402. Worm gear; 403. First cylindrical gear; 5. Second transmission component; 501. Gear shaft; 502. Second cylindrical gear; 503. First sector gear; 504. Second sector gear; 6. Gearbox housing; 601. First shaft hole; 602. Screw post; 603. Second shaft hole; 7. Gearbox cover. Detailed Implementation

[0028] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Example 1

[0033] Most fans on the market today have a left-right oscillation function. However, driving a fan to oscillate left and right requires at least one motor, and driving the fan to rotate requires another motor. Therefore, to achieve both rotation and oscillation, at least two motors are needed, which results in higher fan costs.

[0034] Therefore, such as Figures 1 to 10 As shown, this embodiment provides a reciprocating oscillating mechanism that can realize the rotation and oscillation of a fan with only one motor, thereby reducing the number of motors and lowering costs.

[0035] In one implementation, such as Figure 1 and Figure 2 As shown, the reciprocating oscillating mechanism includes a main motor 2, a chassis 3, and a transmission assembly. Among them, as... Figure 3 As shown, the main motor 2 includes a motor body 201, a main shaft 202 disposed on one side of the motor body 201 and adapted to be fixedly connected to the fan head 1, a transmission shaft disposed on the other side of the motor body 201 and integrated with the main shaft 202, and a rotary shaft 204 disposed on the lower side of the motor body 201. Figure 4 As shown, the chassis 3 has an external gear 301 and an internal gear 302. The external gear 301 and the internal gear 302 are at different heights. The chassis 3 is provided with a connecting part that cooperates with the rotating shaft 204. The rotating shaft 204 is rotatably disposed in the connecting part. The axes of the external gear 301 and the internal gear 302 are collinear with the axis of the connecting part. The transmission assembly is disposed between the transmission shaft and the chassis 3. The transmission assembly includes a gear shaft 501, a first sector gear 503 disposed on the gear shaft 501 and adapted to mesh with the internal gear 302, and a second sector gear 504 adapted to mesh with the external gear 301. The transmission assembly has a first state in which the first sector gear 503 meshes with the internal gear 302 and a second state in which the second sector gear 504 meshes with the external gear 301. When the gear shaft 501 rotates, the first state and the second state alternate.

[0036] In this embodiment, when the main motor 2 is running, it drives the fan head 1 to rotate around the axis of the main shaft 202. Simultaneously, the transmission shaft rotates together with the main shaft 202. Under the transmission of the transmission assembly, the gear shaft 501 rotates around its axis. During the rotation of the gear shaft 501, the first sector gear 503 meshes with the inner gear 302 of the chassis 3, and the second sector gear 504 meshes with the outer gear 301 of the chassis 3, alternating between these states. Assuming the gear shaft 501 rotates counterclockwise around its axis, when the first sector gear 503 meshes with the inner gear 302 of the chassis 3, the second sector gear 504 disengages from the outer gear 301 of the chassis 3. Since the chassis 3 remains stationary, the combined… Figure 9 At this time, the gear shaft 501 rotates clockwise around the axis of the connecting part, thereby driving the entire transmission assembly and the main motor 2 to rotate clockwise around the axis of the connecting part, realizing that the fan head 1 oscillates in the clockwise direction; when the second sector gear 504 meshes with the external gear 301 of the chassis 3, the first sector gear 503 disengages from the internal gear 302 of the chassis 3. Since the chassis 3 is fixed, the combination... Figure 10 At this time, the gear shaft 501 rotates counterclockwise around the axis of the connecting part, thereby driving the entire transmission assembly and the main motor 2 to rotate counterclockwise around the axis of the connecting part, so that the fan head 1 oscillates in the counterclockwise direction. Therefore, this embodiment only sets up one main motor 2, which can realize both the rotation and oscillation of the fan head 1. The number of motors is small, the structure is simple, and the cost is low.

[0037] In one implementation, such as Figure 4 As shown, the connecting part is located at the center of the chassis 3, and the external gear 301 is located on the bottom surface of the chassis 3. The axis of the external gear 301 is collinear with the axis of the connecting part. An annular rim is formed at the edge of the chassis 3, and gear teeth are provided on the inner side of the annular rim to form an internal gear 302. The height of the internal gear 302 is higher than the height of the external gear 301. In this embodiment, the connecting part is located on the internal gear 302, which can reduce the height of the chassis 3. In an alternative embodiment, the height of the external gear 301 can be higher than the height of the internal gear 302.

[0038] Based on the above embodiments, in a preferred embodiment, the transmission shaft is provided with helical teeth to form a worm gear 203, and the transmission assembly includes a first transmission member 4 and a second transmission member 5. For example... Figure 5 As shown, the first transmission component 4 includes a first shaft 401, a worm gear 402 mounted on the first shaft 401, and a first cylindrical gear 403 mounted on the first shaft 401. The worm gear 402 is meshed with the worm 203. Figure 6As shown, the second transmission component 5 includes a gear shaft 501, a first sector gear 503, a second sector gear 504, and a second cylindrical gear 502 disposed on the gear shaft 501. The second cylindrical gear 502 is meshed with the first cylindrical gear 403. In this embodiment, when the main motor 2 is running, it drives the fan head 1 to rotate around the axis of the main shaft 202. At the same time, the worm 203 rotates together with the main shaft 202. Since the worm 203 is meshed with the worm wheel 402, the worm 203 drives the worm wheel 402 and the first shaft 401 to rotate around the axis of the first shaft 401. Since the first shaft 401 is provided with a first cylindrical gear 403, the first cylindrical gear 403 rotates with the first shaft 401 around the axis of the first shaft 401. Since the first cylindrical gear 403 is meshed with the second cylindrical gear 502, it drives the second cylindrical gear 502 and the gear shaft 501 to rotate around the axis of the gear shaft 501. During the rotation of the gear shaft 501, the first state of the first sector gear 503 meshing with the inner gear 302 of the chassis 3 and the second state of the second sector gear 504 meshing with the outer gear 301 of the chassis 3 alternate. In this embodiment, the transmission assembly has fewer components and a simpler structure. It achieves transmission through gear meshing, resulting in a smoother transmission process and improved stability of the fan head 1's oscillation. In an alternative embodiment, a first bevel gear can be fixedly connected to the transmission shaft, and a second bevel gear can be meshed with it. The second bevel gear is mounted on the gear shaft 501. In this embodiment, the first bevel gear, the second bevel gear, the gear shaft 501, the first sector gear 503, and the second sector gear 504 together constitute the transmission assembly.

[0039] Based on the above embodiments, in a preferred embodiment, the reciprocating oscillating mechanism further includes a gearbox housing 6, which is fixedly connected to the motor body 201, such as... Figure 7 and Figure 8 As shown, the gearbox housing 6 is provided with a first shaft hole 601 that is adapted to the first shaft 401, and the first shaft 401 is rotatably disposed in the first shaft hole 601. In this embodiment, by providing the gearbox housing 6 and assembling the first shaft 401 into the first shaft hole 601, it is convenient to realize the meshing connection between the worm gear 402 and the worm 203 on the first shaft 401.

[0040] Specifically, the gearbox housing 6 has a receiving cavity, the worm gear 402 is located in the receiving cavity, and the side wall of the gearbox housing 6 has a mounting hole suitable for the transmission shaft to pass through. The transmission shaft passes through the mounting hole so that the worm 203 and the worm gear 402 are meshed and connected.

[0041] Based on the above embodiments, in a preferred embodiment, further reference is made to... Figure 7 and Figure 8The gearbox housing 6 is provided with several screw posts 602, and the gearbox housing 6 is connected to the motor body 201 by screws. In this embodiment, by providing screw posts 602 on the gearbox housing 6, it is convenient to connect the gearbox housing 6 and the motor body 201 by screws. In an alternative embodiment, the gearbox housing 6 and the motor body 201 are connected by snap-fit.

[0042] Based on the above embodiments, in a preferred embodiment, further reference is made to... Figure 7 and Figure 8 The gearbox housing 6 is provided with a second shaft hole 603 adapted to the gear shaft 501, and the gear shaft 501 is rotatably disposed in the second shaft hole 603. In this embodiment, by providing a second shaft hole 603 on the gearbox housing 6, the gear shaft 501 is installed into the second shaft hole 603. When the gear shaft 501 rotates around the axis of the connecting part, it drives the gearbox housing 6 and the main motor 2 to rotate together. Only one gearbox housing 6 is required to install the first transmission component 4 and the second transmission component 5, resulting in a simple and compact structure.

[0043] like Figure 1 As shown, the upper end of the gear shaft 501 is fitted into the second shaft hole 603, and the second cylindrical gear 502 on the gear shaft 501 is located on the lower side of the gearbox housing 6. How to ensure that the gear shaft 501 can be rotatably set in the second shaft hole 603 and will not fall out of the second shaft hole 603 is a technical means well known to those skilled in the art, and will not be described in detail in this embodiment.

[0044] Based on the above embodiments, in a preferred embodiment, the reciprocating oscillating mechanism further includes a gearbox cover 7, which is disposed on top of the gearbox housing 6 and fixedly connected to the gearbox housing 6. In this embodiment, by providing the gearbox cover 7, the worm 203 and worm wheel 402 are encapsulated inside the gearbox housing 6, which on the one hand limits the position of the worm wheel 402, and on the other hand improves the appearance.

[0045] In one specific embodiment, the gearbox cover 7 is connected to the gearbox housing 6 by screws.

[0046] Based on the above embodiments, in a preferred embodiment, the connecting part is a rotary shaft hole 303, and the rotary shaft 204 is rotatably disposed in the rotary shaft hole 303. In an alternative embodiment, the rotary shaft 204 is provided with a mounting hole, and the connecting part is a shaft rod, which is inserted into the mounting hole in the rotary shaft 204.

[0047] Based on the above embodiments, in a preferred embodiment, the transmission ratio between the internal gear 302 and the first sector gear 503 is i1, and the transmission ratio between the external gear 301 and the second sector gear 504 is i2, where i1 = i2. In this embodiment, the reciprocating swaying speed can be kept constant. Of course, in other alternative embodiments, the swaying state can be changed by altering i1 and i2.

[0048] Example 2

[0049] This embodiment provides a fan, including the reciprocating oscillating mechanism provided in the above embodiment. The main shaft 202 of the main motor 2 is fixedly connected to the fan head 1.

[0050] The fan provided in this embodiment can achieve both rotation and oscillation of the fan head 1 by setting only one main motor 2. The number of motors is small, the structure is simple, and the cost is low.

[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A reciprocating oscillating mechanism, characterized in that, include: The main motor (2) includes a motor body (201), a main shaft (202) disposed on one side of the motor body (201) and adapted to be fixedly connected to the fan head (1), a transmission shaft disposed on the other side of the motor body (201) and integrated with the main shaft (202), and a rotary shaft (204) disposed on the lower side of the motor body (201). The chassis (3) has an external gear (301) and an internal gear (302). The external gear (301) and the internal gear (302) are at different heights. The chassis (3) is provided with a connecting part that cooperates with the rotating shaft (204). The rotating shaft (204) is rotatably mounted on the connecting part. The axes of the external gear (301) and the internal gear (302) are collinear with the axis of the connecting part. A transmission assembly is disposed between the transmission shaft and the chassis (3). The transmission assembly includes a gear shaft (501), a first sector gear (503) disposed on the gear shaft (501) and adapted to mesh with the internal gear (302), and a second sector gear (504) adapted to mesh with the external gear (301). The transmission assembly has a first state in which the first sector gear (503) meshes with the internal gear (302) and a second state in which the second sector gear (504) meshes with the external gear (301). When the gear shaft (501) rotates, the first state and the second state alternate. The drive shaft is provided with helical teeth to form a worm gear (203), and the transmission assembly includes: The first transmission component (4) includes a first shaft (401), a worm gear (402) disposed on the first shaft (401), and a first cylindrical gear (403) disposed on the first shaft (401), wherein the worm gear (402) is meshed with the worm (203); The second transmission component (5) includes the gear shaft (501), the first sector gear (503), the second sector gear (504), and the second cylindrical gear (502) disposed on the gear shaft (501). The second cylindrical gear (502) meshes with the first cylindrical gear (403). The reciprocating oscillating mechanism also includes a gearbox housing (6). The gearbox housing (6) is fixedly connected to the motor body (201). The gearbox housing (6) is provided with a first shaft hole (601) adapted to the first shaft (401). The first shaft (401) is rotatably disposed in the first shaft hole (601). The gearbox housing (6) is provided with a second shaft hole (603) adapted to the gear shaft (501). The gear shaft (501) is rotatably disposed in the second shaft hole (603).

2. The reciprocating oscillating mechanism according to claim 1, characterized in that, The gearbox housing (6) is provided with a plurality of screw posts (602), and the gearbox housing (6) is connected to the motor body (201) by screws.

3. The reciprocating oscillating mechanism according to claim 1, characterized in that, The reciprocating oscillating mechanism also includes a gearbox cover (7), which covers the gearbox housing (6) and is fixedly connected to it.

4. The reciprocating oscillating mechanism according to any one of claims 1-3, characterized in that, The connecting part is a rotary shaft hole (303), and the rotary shaft (204) is rotatably disposed in the rotary shaft hole (303).

5. The reciprocating oscillating mechanism according to any one of claims 1-3, characterized in that, The transmission ratio between the internal gear (302) and the first sector gear (503) is i1, and the transmission ratio between the external gear (301) and the second sector gear (504) is i2, where i1 = i2.

6. A fan, characterized in that, Includes the reciprocating swaying mechanism as described in any one of claims 1-5.

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