CN211314589U

CN211314589U - Double-layer fan blade assembly and fan comprising same

Info

Publication number: CN211314589U
Application number: CN201921521278.8U
Authority: CN
Inventors: 董航; 江世涛; 官飞周; 高文帮; 关振宇
Original assignee: Qingdao Lejia Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Lejia Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-08-30
Filing date: 2019-09-12
Publication date: 2020-08-21
Anticipated expiration: 2029-09-12
Also published as: CN110529403A

Abstract

The utility model relates to a house electrical apparatus technical field provides a double-deck flabellum subassembly and contain this double-deck flabellum subassembly's fan. Wherein, double-deck flabellum subassembly includes first flabellum, second flabellum, internal gear, external gear, dead axle gear and driving piece, the outer wall fixed connection of first flabellum and internal gear, second flabellum and external gear fixed connection, the dead axle gear is located between internal gear and the external gear and meshes with internal gear and external gear simultaneously, the power take off end and the second flabellum of driving piece link to each other. The utility model provides a double-deck flabellum subassembly, under the effect of driving piece, the second flabellum is rotatory to rotate and transmit power to first flabellum in order with the help of rather than fixed external gear, with external gear engagement's dead axle gear and with dead axle gear engagement's external gear, make first flabellum and second flabellum counter-rotation, thereby gas mixing gets more even, improves and mixes the effect, reduces wind and makes an uproar, simultaneously, has still reduced manufacturing cost.

Description

Double-layer fan blade assembly and fan comprising same

Technical Field

The utility model relates to a house electrical apparatus technical field especially relates to a double-deck flabellum subassembly and contain this double-deck flabellum subassembly's fan.

Background

The fan is a tool for taking the cool by the fresh wind in summer, and the built-in fan blades are electrically driven to be converted into the natural wind so as to achieve the effect of cooling. Generally, the air outlet of the fan belongs to mechanical wind, and the wind feeling is strong when the fan runs at a high speed, so that the fan has certain influence on the weak, the old and the infants. The natural wind is soft and comfortable, does not hurt people, and is widely popular with consumers.

The existing fan is mainly divided into a single-layer fan and a double-layer fan, wherein double-layer fan blades which are arranged in the double-layer fan in a staggered mode are driven by two motors to rotate in the same direction and at different speeds, so that the air quantity is more sufficient and soft, and the requirement of a user on natural wind is met. However, the double-layer fan has high noise generated in the using process, low energy consumption utilization rate and incomplete mixing of wind.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims at providing a double-deck flabellum subassembly for solve or partially solve the problem that the current double-deck flabellum is mixed thoroughly and the noise is big to wind.

Another object of the present invention is to provide a fan comprising the above dual-layer fan blade assembly.

(II) contents of utility model

In order to solve one of the technical problems, the utility model provides a double-deck flabellum subassembly, including first flabellum and second flabellum, still include internal gear, external gear, dead axle gear and driving piece, first flabellum with the outer wall fixed connection of internal gear, the second flabellum with external gear fixed connection, the dead axle gear is located the internal gear with between the external gear and simultaneously with the internal gear with the external gear meshing, the power take off end of driving piece with the second flabellum links to each other.

The first fan blade comprises a plurality of first fan blades, and the first fan blades are uniformly distributed along the circumferential direction of the inner gear.

The second fan blade comprises a hub and a plurality of second fan blades which are uniformly distributed on the periphery of the hub, the second fan blades are fixedly connected with the inner wall of the outer gear, and the power output end of the driving piece is fixedly connected with the hub.

Wherein the second fan blade and the outer gear are integrally formed.

The fan fixing device comprises a fixed shaft gear, a fan and a bent mounting support, wherein one end of the mounting support is rotatably connected with the fixed shaft gear, and the other end of the mounting support is fixedly connected with an outer cover net of the fan.

The internal gear is provided with a plurality of limiting units at intervals, each limiting unit comprises baffles which are oppositely arranged on two sides of the internal gear, the tooth width of the internal gear between the baffles is equal to that of the fixed shaft gear, and the tooth width of the internal gear outside the baffles is larger than that of the fixed shaft gear.

The fixed shaft gears comprise a plurality of fixed shaft gears which are uniformly distributed along the circumferential direction of the outer gear.

The first fan blade and the second fan blade are positioned on the same mounting surface.

In order to solve the second technical problem, the utility model provides a fan, reach as above including the fan casing double-deck flabellum subassembly, first flabellum with the second flabellum is installed in the fan casing.

The fan cover is fixedly arranged on the fixed shaft gear, the fixed shaft gear is rotatably sleeved on the fan cover, and the fixed shaft gear is fixedly arranged on the fan cover.

(III) advantageous effects

The utility model provides a double-deck flabellum subassembly, under the effect of driving piece, the second flabellum is rotatory to with the help of its fixed external gear, with the dead axle gear of external gear meshing and with the external gear of dead axle gear meshing transmit power to first flabellum, because the dead axle gear meshes with external gear and internal gear simultaneously, make first flabellum and second flabellum counter-rotating, thereby make the gas mixture that the flabellum drove more even, improve and mix the effect, reduce wind noise, make the air current more close natural wind; simultaneously, this double-deck flabellum subassembly can make first flabellum and second flabellum antiport with the help of a driving piece, has reduced manufacturing cost, has still reduced the noise that the bearing part friction vibration produced in the driving piece simultaneously, has improved user's comfort level.

The utility model provides a fan through using above-mentioned double-deck flabellum subassembly, can provide and mix more even wind, optimizes the electric fan and mixes the effect to wind, reduces wind and makes an uproar.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of a double-layer fan blade assembly according to an embodiment of the present invention;

FIG. 2 is an exploded view of the dual layer fan blade assembly of FIG. 1;

FIG. 3 is a side view of the dual layer fan blade assembly of FIG. 1;

FIG. 4 is a cross-sectional view of the dual layer fan blade assembly shown in FIG. 1;

fig. 5 is a schematic view of the connection between the fixed shaft gear and the mounting bracket in fig. 1.

In the figure: 10. a first fan blade; 11. a first fan blade; 20. a second fan blade; 21. a hub; 22. a second fan blade; 30. an internal gear; 31. a baffle plate; 40. an outer gear; 50. a fixed shaft gear; 60. a drive member; 70. mounting a bracket; 80. a gear sleeve; 81. a pin key; 82. the gear sleeve nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment of the present invention provides a double-layer fan blade assembly, as shown in fig. 1 and fig. 2, which includes a first fan blade 10, a second fan blade 20, an inner gear 30, an outer gear 40, a fixed shaft gear 50 and a driving member 60. The first fan blade 10 is fixedly connected with the outer wall of the inner gear 30, and the second fan blade 20 is fixedly connected with the outer gear 40, so that the first fan blade 10 rotates along with the inner gear 30, and the second fan blade 20 rotates synchronously with the outer gear 40. The fixed shaft gear 50 is positioned between the inner gear 30 and the outer gear 40, the fixed shaft gear 50 is simultaneously meshed with the inner gear 30 and the outer gear 40, and the power output end of the driving member 60 is connected with the second fan blades 20. The fixed gear 50 has a gear structure in which the axis position of the gear is fixed, that is, it can only rotate and does not revolve.

Under the driving action of the driving part 60, the second fan blades 20 rotate and drive the outer gear 40 fixed with the second fan blades to rotate; the rotation force of the outer gear 40 is transmitted to the inner gear 30 via the fixed shaft gear 50, and the inner gear 30 and the outer gear 40 rotate in opposite directions, whereby the first fan blade 10 and the second fan blade 20 rotate in opposite directions. When the device is used, the air flow concentrated by the second fan blades 20 is more uniformly mixed with the external air under the reverse action of the first fan blades 10, the mixing effect is improved, the wind noise is reduced, and the air flow is closer to natural wind; meanwhile, the double-layer fan blade assembly in the embodiment of the present invention can realize the reverse rotation of the first fan blade 10 and the second fan blade 20 by means of one driving member 60, which is helpful for reducing the production cost; compare in the noise that a plurality of drive arrangement produced, the embodiment of the utility model provides an in double-deck flabellum subassembly can also reduce the noise that bearing spare friction vibration produced, comfort level when improving the consumer and using.

In the embodiment of the present invention, the second fan blade 20 may be indirectly and fixedly connected to the outer gear 40 through an intermediate member, or may be directly connected thereto. When the second fan blade 20 is directly connected with the outer gear 40, the inner part of the outer gear 40 is hollow, and the outer side of the second fan blade 20 is fixedly connected with the inner wall of the outer gear 40; when the second blades 20 are indirectly and fixedly connected with the outer gear 40, the second blades 20 and the outer gear 40 can be connected in a staggered manner back and forth through an intermediate shaft or can be mounted on the same mounting surface through a rod-shaped member. In this regard, the embodiment of the present invention is not particularly limited as long as the second blades 20 and the outer gear 40 rotate synchronously. Similarly, the first fan blade 10 and the internal gear 30 may be directly or indirectly connected as long as they rotate synchronously.

As shown in fig. 3, the first fan blade 10 includes a plurality of first fan blades 11, and the plurality of first fan blades 11 are uniformly distributed along the circumferential direction of the outer wall of the inner gear 30. The first fan blade 11 is in a wing shape, a fan shape or a palm shape, one end of the first fan blade is fixedly connected with the outer wall of the inner gear 30, and the connecting end is inclined with the axis of the inner gear 30. The first fan blade 11 is made of plastic materials such as polypropylene and the like or metals such as iron, aluminum and the like; preferably, the first fan blade 11 is made of plastic and is integrally formed with the inner gear 30 made of plastic, so as to save the production cost. The number of the first fan blades 11 may be odd or even, preferably is odd, and for example, may be five or seven, so as to avoid resonance when the even fan blades are symmetrically arranged.

In the embodiment of the present invention, the second blades 20 are integrally formed with the outer gear 40. The outer gear 40 is hollow inside and has teeth on the outside; the outer edge of the second fan blade 20 is fixedly connected with the inner wall of the outer gear 40. Preferably, the second blades 20 are coaxially disposed with the outer gear 40; the driving member 60 is a rotating motor, and a motor shaft of the rotating motor is fixedly connected to a central shaft of the second fan blade 20.

Specifically, the second fan blade 20 includes a hub 21 and a plurality of second fan blades 22 uniformly distributed on the hub 21, and the power output end of the driving member 60 is fixedly connected to the hub 21. For example, the hub 21 is inserted and fixed to the power output end of the driving member 60, or is fixedly installed at the power output end of the driving member 60 by a pin, or a section of external thread is formed at the power output end of the driving member 60, a limiting rod is inserted and connected, and then the hub 21 is screwed and fastened to the end of the driving member 60 by a fastening nut. The second blades 22 are airfoil-shaped, fan-shaped or palm-shaped, and there may be an odd number or an even number. The shape of the second fan blade 22 may be the same as or different from the shape of the first fan blade 11. The number of second blades 22 located at the inner side is not more than the number of first blades 11. For example, the number of the first blades 11 may be five, and the number of the second blades 22 may be three; the first fan blade 11 and the second fan blade 22 may be five or three, and the embodiment of the present invention is not limited in particular.

The embodiment of the utility model provides an in double-deck flabellum subassembly still includes the installing support 70 of buckling form, the one end and the dead axle gear 50 rotatable coupling of installing support 70, the other end of installing support 70 be used for with the dustcoat net fixed connection of fan. During use, the fan's outer shroud mesh is a stationary structure, thereby keeping the fixed axis gear 50 stationary during fan blade rotation via the mounting bracket 70. Wherein, the mounting bracket 70 may be a tractor crank type or an L-type. It should be noted that the mounting bracket 70 may be fixedly connected with the gear shaft of the fixed shaft gear 50 through a latch member, or may be inserted and fixed in the gear hole of the fixed shaft gear 50. The end of the mounting bracket 70 that is connected to the fan shroud mesh may be secured by welding or by plugging. Preferably, the mounting bracket 70 is made of a plastic material.

As shown in fig. 4, in order to prevent the fixed shaft gear 50 from moving in the axial direction during the rotation process, a plurality of limiting units are arranged on the internal gear 30 at intervals, and each limiting unit comprises a baffle 31 oppositely arranged at two sides of the internal gear 30. The tooth width of the internal gear 30 between the baffles 31 is equal to the tooth width of the fixed shaft gear 50, and the tooth width of the internal gear 30 outside the baffles 31 is larger than the tooth width of the fixed shaft gear 50. In the process of rotationally meshing the fixed shaft gear 50 and the internal gear 30, the fixed shaft gear 50 can effectively avoid axial movement under the limit adjustment of the baffle 31. Of course, such a limit unit may be provided on the outer gear 40 alone or on both the inner gear 30 and the outer gear 40, and the embodiment of the present invention is not limited thereto.

Specifically, the number of the fixed axis gears 50 may be one, two, three, or four, and when there are a plurality of the fixed axis gears 50, the plurality of fixed axis gears 50 are uniformly distributed along the circumferential direction of the outer gear 40. The inner gear 30 and the outer gear 40 are coaxially arranged, the central axis of the fixed shaft gear 50 is parallel to the axes of the inner gear 30 and the outer gear 40, and the plurality of fixed shaft gears 50 which are uniformly distributed can ensure the stability of power transmission in the driving process of the driving part 60. When there are a plurality of fixed axis gears 50, each fixed axis gear 50 is provided with a mounting bracket 70. In addition, the mounting bracket 70 may also be a connecting plate with a plurality of lugs, the connecting plate is fixedly connected with the outer mesh cover of the fan, the number of the lugs is consistent with the number of the dead axle gears 50, the lugs are fixedly connected in a one-to-one correspondence manner, the connecting rods are vertically and fixedly mounted on the lugs, and the dead axle gears 50 are sleeved on the connecting rods.

The embodiment of the present invention provides a double-layer fan blade assembly, the first fan blade 10 and the second fan blade 20 can be located on the same installation surface, and can also be arranged at the front and back intervals. When the first blades 10 and the second blades 20 are located on the same mounting surface, preferably, the plurality of first blades 11 are directly mounted on the inner gear 30 at equal intervals, the outer edge of the second blade 20 is fixedly mounted on the inner wall of the hollow outer gear 40, and the inner gear 30 and the outer gear 40 are located on the same mounting surface. When the first fan blade 10 and the second fan blade 20 are arranged at a front-rear interval, a connecting rod can be fixedly installed on the outer wall of the outer gear 40, the length direction of the connecting rod is parallel to the axial direction of the outer gear 40, and one end of the connecting rod, which is far away from the outer gear 40, is fixedly connected with the first fan blade 10. In addition, the second blades 20 may be sleeved on the gear shaft of the outer gear 40, so that the teeth of the outer gear 40 and the second blades 20 are located on different mounting surfaces, and the first blades 10 and the second blades 20 located on the same mounting surface as the outer gear 40 may be spaced back and forth.

The embodiment of the utility model provides an in double-deck flabellum subassembly, both be applicable to domestic fan and also be applicable to industrial ventilation fan, realize the antiport of first flabellum 10 and second flabellum 20 with the help of internal gear 30, outer gear 40 and dead axle gear 50 to improve mixing effect of air current, can provide power for the antiport of first flabellum 10 and second flabellum 20 with the help of a driving piece 60 simultaneously, practice thrift the cost, noise reduction.

In addition, the embodiment of the utility model provides a fan is still provided, this fan includes fan casing and above-mentioned double-deck flabellum subassembly, and first flabellum 10 and second flabellum 20 all are located the fan casing. The driving member 60 can be arranged outside the fan cover or arranged in the fan cover; when the driving member 60 is located outside the fan cover, the power output end of the driving member 60 extends into the fan cover and is fixedly connected with the second fan blade 20; when the driving member 60 is located in the fan housing, the housing of the driving member 60 is fixedly installed at the middle of the rear housing of the fan housing.

The mounting bracket 70 may be directly mounted on the fan housing or may be mounted on the fan housing through an intermediate member. Specifically, as shown in fig. 5, a gear sleeve 80 is fixed to an end of the mounting bracket 70 by a pin 81, and the fixed-axis gear 50 is sleeved on the gear sleeve 80, and the fixed-axis gear 50 can rotate around the gear sleeve 80 under the action of external force. One end of the gear sleeve 80 is provided with a limiting sheet protruding outwards in the radial direction, the other end of the gear sleeve is provided with an external thread, and the gear sleeve nut 82 is matched with the external thread, so that one end of the fixed shaft gear 50 is abutted against the end face of the gear sleeve nut 82, the other end of the fixed shaft gear is abutted against the limiting sheet, and the fixed shaft gear 50 is prevented from floating in the axial direction.

In addition, the fan also comprises a bracket which can be a vertical rod with a round base plate at the bottom, and the double-layer fan blade assembly is positioned at the top of the vertical rod and used as a floor fan. The bracket can also be formed by connecting a plurality of metal rods, and the bracket is rotatably connected with two sides of the fan cover so as to adjust the blowing direction of the fan. The bracket can also be a vertical rod with a clamping structure at the bottom so as to be clamped at the head of a bed or a desk; the top of the vertical rod is rotatably connected to the housing of the driving member 60 in the double-layer fan blade assembly to adjust the wind direction.

The embodiment of the utility model provides an in the fan, under driving piece 60's effect, the transmission through internal gear 30, outer gear 40 and dead axle gear 50 makes first flabellum 10 and second flabellum 20 antiport to provide and mix more even wind, optimize the electric fan and to the effect of mixing of wind, reduce wind and make an uproar.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a double-deck flabellum subassembly, includes first flabellum and second flabellum, its characterized in that still includes internal gear, external gear, dead axle gear and driving piece, first flabellum with the outer wall fixed connection of internal gear, the second flabellum with external gear fixed connection, the dead axle gear is located the internal gear with between the external gear and simultaneously with the internal gear with the external gear meshing, the power take off end of driving piece with the second flabellum links to each other.

2. The dual-layer fan blade assembly of claim 1, wherein the first fan blade comprises a plurality of first fan blades, and the plurality of first fan blades are uniformly distributed along the circumferential direction of the inner gear.

3. The dual-layer fan blade assembly of claim 1 or 2, wherein the second fan blade comprises a hub and a plurality of second fan blades uniformly distributed around the hub, the plurality of second fan blades are fixedly connected with the inner wall of the outer gear, and the power output end of the driving member is fixedly connected with the hub.

4. The dual layer fan blade assembly of claim 1 in which said second fan blade is integrally formed with said outer gear.

5. The dual-layer fan blade assembly of claim 1, further comprising a bent mounting bracket, wherein one end of the mounting bracket is rotatably connected to the fixed-axis gear, and the other end of the mounting bracket is fixedly connected to an outer cover mesh of the fan.

6. The double-layer fan blade assembly of claim 1, wherein a plurality of limiting units are arranged on the inner gear at intervals, each limiting unit comprises baffle plates which are oppositely arranged on two sides of the inner gear, the tooth width of the inner gear between the baffle plates is equal to that of the fixed shaft gear, and the tooth width of the inner gear outside the baffle plates is larger than that of the fixed shaft gear.

7. The double-layer fan blade assembly according to claim 1, 5 or 6, wherein the fixed shaft gear comprises a plurality of fixed shaft gears, and the plurality of fixed shaft gears are uniformly distributed along the circumferential direction of the outer gear.

8. The dual layer fan blade assembly of claim 1 wherein said first fan blade and said second fan blade are located on the same mounting surface.

9. A fan comprising a fan housing and the dual layer blade assembly of any of claims 1-8, wherein the first blade and the second blade are mounted within the fan housing.

10. The fan as claimed in claim 9, wherein a mounting bracket is fixedly mounted to the fan housing, a gear sleeve is fixedly mounted to an end of the mounting bracket, and the fixed shaft gear is rotatably sleeved to the gear sleeve.