CN212838550U

CN212838550U - Fan assembly and kitchen appliance

Info

Publication number: CN212838550U
Application number: CN202021643062.1U
Authority: CN
Inventors: 刘彪
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-03-30
Anticipated expiration: 2030-08-10

Abstract

The utility model discloses a fan component and a kitchen appliance, wherein the fan component comprises an output shaft, and one end of the output shaft extending into an inner container is provided with a fan blade; the inner bag is provided with the support, and it has the installing port to open on the support, and the installing port endotheca is equipped with the sealing washer, and the sealing washer is formed with on the outer wall and supplies installing port edge male outer groove, and the sealing washer inner wall is formed with the cover and establishes the sealed chamber outside the output shaft, is equipped with radial compression volume between sealing washer and the output shaft. Kitchen appliance, through setting up the sealing washer, in the high temperature vapour in the inner chamber can not leak the organism through the motor seal circle, the cooperation between motor shaft and the motor seal circle has certain compression capacity, does not influence the rotational speed of motor and produce the abnormal sound again simultaneously.

Description

Fan assembly and kitchen appliance

Technical Field

The utility model belongs to sealed field especially relates to a fan assembly and kitchen appliance.

Background

Kitchen appliances in the market, like electric steamer, steam oven motor sealing washer generally adopt the silica gel material, can guarantee the leakproofness of inner bag again in high temperature resistant time, prevent that the high temperature steam in the inner bag from leaking to the outside through the clearance between with the motor shaft, bring the potential safety hazard for the electrical components and parts in the organism.

If the designed clearance between the motor shaft and the sealing ring is too small, the rotating speed of the motor can be influenced, abnormal sound can be generated, and the leakage of steam in the inner container can be caused if the designed clearance is too large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fan assembly and kitchen appliance under the normal condition of working of motor, can not produce the abnormal sound again when can not produce steam leakage, reduce the condition of motor speed.

In order to achieve the above object, the utility model discloses a fan assembly and kitchen appliance's concrete technical scheme as follows:

a fan assembly comprises an output shaft, wherein one end of the output shaft, which extends into a liner, is provided with a fan blade; the inner bag is provided with the support, and it has the installing port to open on the support, and the installing port endotheca is equipped with the sealing washer, and the sealing washer is formed with on the outer wall and supplies installing port edge male outer groove, and the sealing washer inner wall is formed with the cover and establishes the sealed chamber outside the output shaft, is equipped with radial compression volume between sealing washer and the output shaft.

Further, the amount of radial compression is 0.4. + -. 0.1 mm.

Furthermore, the matching section of the sealing ring and the output shaft is triangular, and the sealing ring is contacted with the side wall of the output shaft at the vertex of the triangle.

Furthermore, a movable gap is arranged between the edge of the mounting opening and the inner wall of the outer groove.

Further, the clearance is 1 mm.

Furthermore, the sealing ring is provided with an annular groove at the outer side of the output shaft, and the annular groove and the output shaft are coaxially arranged.

Further, the sealing ring and the edge of the mounting opening are provided with axial compression at the outer groove.

Further, the axial compression amount is 0.3 ± 0.1 mm.

Furthermore, the sealing ring is provided with a bulge on the side wall, and the bracket is provided with a notch for the bulge to insert into at the edge of the mounting opening.

A kitchen appliance comprises the fan assembly.

The utility model discloses a fan assembly and kitchen appliance have following advantage: through setting up the sealing washer, high temperature steam in the inner chamber can not leak to the organism through the motor sealing washer in, and the cooperation between motor shaft and the motor sealing washer has certain compression capacity, does not influence the rotational speed of motor and produce the abnormal sound simultaneously again.

Drawings

Fig. 1 is a schematic view of a fan assembly mounting structure of the present invention;

fig. 2 is a longitudinal sectional view of the sealing ring of the present invention;

fig. 3 is a cross-sectional view of the sealing ring of the present invention.

The notation in the figure is:

1. an inner container; 2. a support plate; 3. a motor; 31. a housing; 32. an output shaft; 4. a fan blade; 5. a support; 51. an installation port; 52. a notch; 6. a nut; 7. a baffle plate; 8. a seal ring; 81. an outer tank; 82. sealing the cavity; 83. an annular groove; 84. rubbing the lines; 85. a protrusion;

l1, radial compression; l2, axial compression; l3, clearance of play.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the following description is made in detail with reference to the accompanying drawings.

As shown in FIG. 1, the body of the kitchen appliance of the present invention, such as an electric steamer, a steaming oven, a microwave oven, etc., comprises an inner container 1 for heating food. In order to ensure the temperature of the inner container 1 to be uniform, the inner container 1 is also provided with a fan assembly, so that hot air flows circulate in the inner container 1 to uniformly heat food.

In order to mount the fan assembly, the body further includes a support plate 2 fixed to an outer side of the inner container 1. The fan assembly comprises a motor 3 and fan blades 4 driven by the motor 3. The shell 31 of the motor 3 is fixed on the support plate 2, and the output shaft 32 of the motor 3 penetrates through the support plate 2 and the side wall of the inner container 1 and extends into the inner container 1. The fan blade 4 is arranged at one end of the output shaft 32 in the inner container 1 through a nut 6, so that the fan blade 4 rotates along with the output shaft 32. And inner bag 1 is provided with baffle 7 in the fan blade 4 outside, and it has the air-out grid to open on baffle 7 to reduce the safety risk.

Referring to fig. 2, in order to enable the output shaft 32 to penetrate through the liner 1, the liner 1 is provided with a bracket 5, the bracket 5 is provided with a mounting opening 51, a sealing ring 8 is sleeved in the mounting opening 51, an outer groove 81 for inserting the edge of the mounting opening 51 is formed on the outer wall of the sealing ring 8, and a sealing cavity 82 sleeved outside the output shaft 32 is formed on the inner wall of the sealing ring 8. And radial compression L1 is arranged between the sealing ring 8 and the output shaft 32, so that on the premise that the motor 3 normally works, high-temperature steam in the inner container 1 is prevented from leaking into the machine body through the sealing ring 8 of the motor 3, and potential safety hazards are brought to electrical elements. Typically, the amount of radial compression L1 is 0.4. + -. 0.1 mm.

Moreover, the matching section of the sealing ring 8 and the output shaft 32 is triangular, and contacts with the side wall of the output shaft 32 at the vertex of the triangle, so as to ensure that the radial compression L1 is sufficient.

In order to prevent the welding of the bracket 5 from tolerance deviation and the output shaft 32 and the mounting opening 51 are not concentric, a movable gap L3 is arranged between the edge of the mounting opening 51 and the inner wall of the outer groove 81, and the movable gap L3 is generally 1 mm. And the sealing washer 8 forms annular groove 83 in the output shaft 32 outside, and annular groove 83 and output shaft 32 coaxial setting also can eliminate radial tolerance, prevent because the output card that the decentration leads to because the decentration is dead or the rotational speed is slow.

And the sealing ring 8 is provided with axial compression L2 at the outer groove 81 and the edge of the mounting opening 51, and the general axial compression L2 is 0.3 +/-0.1 mm, so that the sealing of the output shaft 32 and the inner container 1 is ensured, and air leakage is prevented. And the outer groove 81 forms friction grains 84 at the side attached to the outer edge of the liner 1 to ensure that the sealing ring 8 is firmly installed.

As shown in fig. 3, a protrusion 85 is formed on the side wall of the sealing ring 8, and a notch 52 for inserting the protrusion 85 is formed at the edge of the mounting opening 51 of the bracket 5, so as to prevent the sealing ring 8 from rotating with the output shaft 32.

Thus, the sealing ring 8 seals the gap between the output shaft 32 and the inner container 1, and the output shaft 32 is ensured to work normally while preventing the air leakage of the inner container 1.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. A fan assembly comprises an output shaft (32), wherein one end of the output shaft (32) extending into an inner container (1) is provided with a fan blade (4); the novel inner container is characterized in that a support (5) is arranged on the inner container (1), a mounting opening (51) is formed in the support (5), a sealing ring (8) is sleeved in the mounting opening (51), an outer groove (81) for inserting the edge of the mounting opening (51) is formed in the outer wall of the sealing ring (8), a sealing cavity (82) sleeved outside the output shaft (32) is formed in the inner wall of the sealing ring (8), and radial compression is arranged between the sealing ring (8) and the output shaft (32).

2. The fan assembly of claim 1 wherein the radial compression is 0.4 ± 0.1 mm.

3. A fan assembly according to claim 1, characterised in that the co-operating cross-sections of the sealing ring (8) and the output shaft (32) are triangular, the sealing ring (8) contacting the side wall of the output shaft (32) at the apex of the triangle.

4. The fan assembly of claim 1, wherein a clearance is provided between the edge of the mounting opening (51) and the inner wall of the outer groove (81).

5. The fan assembly of claim 4 wherein the clearance gap is 1 mm.

6. A fan assembly according to claim 1, wherein the sealing ring (8) is formed with an annular groove (83) outside the output shaft (32), the annular groove (83) and the output shaft (32) being coaxially arranged.

7. A fan assembly according to claim 1, characterised in that the sealing ring (8) and the edge of the mounting opening (51) are provided with an axial compression at the outer groove (81).

8. The fan assembly of claim 7 wherein the axial compression is 0.3 ± 0.1 mm.

9. A fan assembly according to claim 1, wherein the sealing ring (8) is formed with a protrusion (85) on the side wall, and the bracket (5) is formed with a notch (52) at the edge of the mounting opening (51) for inserting the protrusion (85).

10. A kitchen appliance comprising a fan assembly according to any of claims 1 to 9.