CN210265269U

CN210265269U - Ceiling fan blade

Info

Publication number: CN210265269U
Application number: CN201921060710.8U
Authority: CN
Inventors: 卢齐荣
Original assignee: Guangdong Homeplus Electric Appliance Co ltd; New Century Electrical Manufacturing Zhongshan Co Ltd
Current assignee: Guangdong Homeplus Electric Appliance Co ltd; New Century Electrical Manufacturing Zhongshan Co Ltd
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-04-07
Anticipated expiration: 2029-07-08

Abstract

The utility model discloses a ceiling fan flabellum, including having connecting hole 1 and being flat rigid coupling portion 2, the end edge of rigid coupling portion 2 is connected with blade portion 3, blade portion 3 is crooked to a plurality of stages that have different angles to make the wind-force of a plurality of angles, include first stage 31, transition stage 32 and final stage 33 from the root to the end in proper order, the tangent wind face slope of final stage 33 is to rotatory advancing direction, through transition stage 32 with first stage 31 and final stage 33 transitional coupling, transition stage 32 comprises a plurality of bending stages, and preceding bending stage passes through to final bending stage with the gradual change nature mode, and transition stage is according to final stage's demand, can change deformation in multiple stages, produces multiple wind-force.

Description

Ceiling fan blade

[ technical field ] A method for producing a semiconductor device

The utility model relates to a ceiling fan flabellum.

[ background of the invention ]

The general flabellum of market ceiling fan lamp is straight type, and its drawback is that wind direction angle is single, and wind-force coverage is little, and the air current is inhomogeneous, and except that the regional wind-force directly below the ceiling fan is a bit big, its wind-force of the region of a bit deviation is less.

The utility model discloses a design idea does multiple bending angle for a slice flabellum, when the fan operation, arouses the windage that comes from different angles because of the deformation of the different angles of flabellum, and produces the wind-force downwards and to the oblique below, changes the drawback of the single angle wind direction of traditional straight board blade, makes the wind-force cover face wider, and the air current tissue is more even.

[ Utility model ] content

The utility model aims to solve the technical problem that a ceiling fan flabellum simple structure, that have multiple bending angle is provided, it is wide to have wind-force coverage, characteristics that the air current is even.

The utility model discloses a realize through following technical scheme:

a ceiling fan blade, its characterized in that: including having connecting hole 1 and being flat rigid coupling portion 2, the terminal edge of rigid coupling portion 2 is connected with blade portion 3, blade portion 3 is crooked to a plurality of stages that have different angles, includes first stage 31, transition stage 32 and final stage 33 from root to end in proper order, the tangent wind face slope of final stage 33 is to rotatory direction of advance, transition stage 32 comprises a plurality of bending stages, and preceding bending stage is with gradual change nature mode to the transition of last bending stage.

The ceiling fan blade is characterized in that: the distal edge of the fixed portion 2 is bent in the forward direction of rotation and then connected to the blade portion 3 so that the blade portion 3 is inclined in the forward direction of rotation.

The ceiling fan blade is characterized in that: the first stage 31 and the last stage 33 are twisted in the direction of rotation, respectively, and the transition stage 32 connects the first stage 31 and the last stage 33 in a turning manner, wherein

The included angle a between the front end of the root of the first stage 31 and the horizontal plane is 14-24 degrees, the included angle B between the rear end of the root of the first stage 31 and the horizontal plane is 29-39 degrees, and the included angle A between the front end of the root of the first stage 31 and the horizontal plane and the included angle B between the rear end of the root of the first stage 31 and the horizontal plane respectively satisfy the following relational expressions: 12 ° < a-a <22 °,11 ° < B-B <21 °, the gradual transition between the root and the end of the first stage 31,

the included angle D between the front end of the root of the last stage 33 and the horizontal plane is between 9 degrees and 19 degrees, the included angle E between the rear end of the root of the last stage 33 and the horizontal plane is between 29 degrees and 39 degrees, and the included angle D between the front end of the root of the first stage 31 and the horizontal plane and the included angle E between the rear end of the root of the first stage and the horizontal plane respectively satisfy the following relational expressions: 0< D-D <6 °,2 ° < E-E <12 °, and a smooth transition between the root and the end of said final stage 33.

The ceiling fan blade is characterized in that: the first stage 31 is twisted in the same direction into a helical configuration and the last stage 33 is twisted in the same direction into a helical configuration.

Compared with the prior art, the utility model discloses there is following advantage:

1. the utility model discloses a blade portion 3 is crooked to a plurality of stages that have different angles to make the wind-force of a plurality of angles, through transition stage 32 with first stage 31 and last stage 33 transitional coupling, transition stage 32 comprises a plurality of bending stages, and preceding bending stage passes through to last bending stage with the gradual change nature mode, and transition stage is according to the demand of last stage, can change deformation of multistage, produces multiple wind-force.

2. The utility model discloses a blade portion 3, have certain contained angle with the horizontal plane behind the end edge turn of rigid coupling portion 2, first stage 31 and rotatory direction of advance's contained angle, it is big in root department, and reduce gradually to terminal distortion, and after crossing stage 32 turn once more, make final stage 33 and rotatory direction of advance's contained angle, increase in root department, and reduce gradually to terminal distortion, thereby the tangent plane of ring in the rotation region formation of first stage 31 and final stage 33, and form multiple bending angle, when the fan operates, the position of the different distortion angles of flabellum arouses the windage that comes from different angles, thereby make the wind-force of a plurality of angles, produce the wind-force downwards and to the oblique below, make the wind-force cover face wider, the air current disturbance is more even.

[ description of the drawings ]

The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a top view of the fan blade of the embodiment of FIG. 1;

FIG. 3 is a front view of the fan blade of the embodiment of FIG. 1;

FIG. 4 is a right side view of the fan blade of the embodiment of FIG. 1;

fig. 5 is a cross-sectional view taken along the direction I-I in fig. 3;

fig. 6 is a sectional view taken along the direction II-II in fig. 3;

FIG. 7 is a left side view of the fan blade of the embodiment of FIG. 1;

FIG. 8 is a schematic view of the embodiment of FIG. 1 with fan blades applied to a ceiling fan;

FIG. 9 is a schematic view of another embodiment of a fan blade for use with a ceiling fan.

[ detailed description ] embodiments

The invention will be further described with reference to the accompanying drawings:

the ceiling fan blade shown in fig. 1 to 9 includes a flat plate-shaped fixing portion 2 having a connecting hole 1, a blade portion 3 connected to a distal edge of the fixing portion 2, the blade portion 3 being bent in a plurality of stages having different angles, a first stage 31, a transition stage 32, and a last stage 33 being sequentially included from a root portion to a distal end, a tangential plane of the last stage 33 being inclined in a forward direction of rotation, the transition stage 32 being composed of a plurality of bending stages, and a previous bending stage being transited to a last bending stage in a gradual change manner. The blade 3 is bent into a plurality of stage angles, so that wind power with a plurality of angles is produced, and the transition stage can change deformation in a plurality of stages according to the requirement of the final stage, so that a plurality of wind power can be produced.

As shown in fig. 1 to 8, in the embodiment, the distal edge of the fastening portion 2 is bent in the forward direction of rotation and then connected to the blade portion 3 so that the blade portion 3 is inclined in the forward direction of rotation, and the fastening portion 2 is horizontally connected to the ceiling fan motor 5 so that the blade portion 3 has a wind-cutting surface inclined in the forward direction of rotation.

The first stage 31 and the last stage 33 are twisted in the direction of rotation, respectively, and the transition stage 32 connects the first stage 31 and the last stage 33 in a turning manner, wherein

Preferably, the included angle a is between 16 ° and 22 °, the included angle B is between 31 ° and 37 °, and the included angle a and the included angle B satisfy the following relations: 15 ° < a-a <19 °,14 ° < B-B <18 °; the included angle D is between 11 ° and 17 °, the included angle E is between 31 ° and 37 °, and the included angle D and the included angle E satisfy the following relations: 2 ° < D-D <6 °,5 ° < E-E <9 °.

More specifically, a is 19 °, B is 34 °, a is 2 °, B is 18 °, D is 14 °, E is 34 °, D is 10 °, and E is 27 °.

The blade 3 has a certain angle with the horizontal plane after turning at the end edge of the fixed connection part 2, the angle between the first stage 31 and the rotating advancing direction is large at the root and gradually decreases towards the end, and after turning again in the transition stage 32, the angle between the last stage 33 and the rotating advancing direction is increased at the root and gradually decreases towards the end, so that the wind cutting surfaces of the inner and outer rings are formed in the rotating areas of the first stage 31 and the last stage 33, and various bending angles are formed, and when the fan operates, the wind resistance from different angles is caused at the positions with different twisting angles of the blades, so that wind power with multiple angles is produced, and wind power with downward and oblique downward directions is produced, so that the wind power coverage surface is wider, and the air flow disturbance is more uniform.

The first stage 31 is in a spiral shape by twisting in the same direction, the last stage 33 is in a spiral shape by twisting in the same direction, and the inclination angles of the first stage 31 and the last stage 33 are respectively reduced from the root to the tail end of the two stages from large spirals, so that the spirals wind outwards, the coverage range of wind power is enlarged, and the size of the wind power expanded to the periphery is increased.

As shown in fig. 2, the material width of the blade 3 gradually decreases from the root of the first stage 31 to the end of the last stage 33, increasing the overall strength of the blade 3 during rotation.

The fixing part 2 and the blade part 3 are integrally formed, so that the structure is simple, and the forming and manufacturing are easy.

The corresponding ceiling fan includes jib 4 and ceiling fan motor 5, as figure 8, be fixed with go-between 6 on the outer peripheral face of ceiling fan motor 5, go-between 6 goes up around circumference and is provided with the through-hole corresponding with connecting hole 1, through insert the bolt in the through-hole on connecting hole 1 and go-between 6 to it is fixed to connect rigid coupling portion 2 and go-between 6 through the nut cooperation, adopts go-between 6, simple structure easily makes and installs.

As shown in fig. 9, the blade 3 can be smoothly connected to the end of the fastening part 2. The ceiling fan motor 5 can also fix a plurality of blade forks 7 along the circumferential direction, the fixedly connected part 2 is fixedly connected with the blade forks 7 through screws, wherein the connecting parts of the blade forks 7 and the fixedly connected part 2 are twisted by a certain angle in the opposite direction of the forward rotation direction, so that after the fan blades are installed, the inclination angle of the blades is increased, the wind power is improved, the wind power is ensured, meanwhile, the twisting angles of the first stage 31 and the last stage 33 can be correspondingly reduced, the structure is simple, and the manufacture is easy.

Claims

1. A ceiling fan blade, its characterized in that: including having connecting hole (1) and being flat rigid coupling portion (2), the end edge of rigid coupling portion (2) is connected with blade portion (3), blade portion (3) are crooked to a plurality of stages that have different angles, include first stage (31), transition stage (32) and final stage (33) from the root to the end in proper order, the tangent wind face slope of final stage (33) is to rotatory direction of advance, transition stage (32) comprise a plurality of bending stage, and preceding bending stage passes through to final bending stage with the gradual change nature mode.

2. The ceiling fan blade of claim 1, wherein: the tail edge of the fixed connection part (2) is bent towards the advancing direction of the rotation and then connected to the blade part (3) so that the blade part (3) inclines towards the advancing direction of the rotation.

3. The ceiling fan blade of claim 2, wherein: the first stage (31) and the last stage (33) are twisted in the direction of rotation, respectively, and the transition stage (32) connects the first stage (31) and the last stage (33) in a zigzag manner, wherein

The included angle a between the front end of the root of the first stage (31) and the horizontal plane is 14-24 degrees, the included angle B between the rear end of the root of the first stage (31) and the horizontal plane is 29-39 degrees, and the included angle A between the front end of the root of the first stage (31) and the horizontal plane and the included angle B between the rear end of the root of the first stage (31) and the horizontal plane respectively satisfy the following relational expressions: 12 ° < a-a <22 °,11 ° < B-B <21 °, a gradual transition between the root and the tip of the first stage (31),

the included angle D between the front end of the root of the last stage (33) and the horizontal plane is between 9 degrees and 19 degrees, the included angle E between the rear end of the root of the last stage (33) and the horizontal plane is between 29 degrees and 39 degrees, and the included angle D between the front end of the root of the first stage (31) and the horizontal plane and the included angle E between the rear end of the root of the first stage and the horizontal plane respectively satisfy the following relational expressions: 0< D-D <6 °,2 ° < E-E <12 °, and a smooth transition between the root and the end of said final stage (33).

4. The ceiling fan blade of claim 3, wherein: the first stage (31) is twisted in the same direction into a helical configuration and the last stage (33) is twisted in the same direction into a helical configuration.