WO2017080122A1

WO2017080122A1 - Rotary knob assembly and electric oven

Info

Publication number: WO2017080122A1
Application number: PCT/CN2016/073585
Authority: WO
Inventors: 郭国勇; 苏振贺; 李炳盛; 吴忠贤
Original assignee: 广东美的厨房电器制造有限公司; 美的集团股份有限公司
Priority date: 2015-11-12
Filing date: 2016-02-05
Publication date: 2017-05-18
Also published as: GB2558151A; GB2558151B; GB201807519D0; CN105286653B; AU2016351942A1; CN105286653A; AU2016351942B2

Abstract

Disclosed is a rotary knob assembly arranged on a cooking appliance, comprising a rotary knob body (1) and a decoration ring (2), wherein an adaptor part (11) is provided on one end of the rotary knob body (1); the decoration ring (2) comprises a ring body (22) and a base plate (23), the base plate (23) being provided within the ring body (22) and enclosing an installation cavity (21) with the ring body (22), and the base plate (23) being provided with a positioning hole (231) and an elastic part (232); the adaptor (11) can pass through the positioning hole (231) and is connected to a rotary switch shaft of the cooking appliance; and the rotary knob body (1) abuts against the elastic part (232), so as to press the decoration ring (2) on a control panel (4) of the cooking appliance, so that the rotary knob body (1) can drive the decoration ring (2) to rotate. Since the base plate (23) of the decoration ring (2) is provided with the positioning hole (231) and the elastic part (232) and the rotary knob body (1) abuts against the elastic part (232), with respect to the prior art, the use of a spring component is reduced, so as to avoid unnecessary trouble due to the mounting of a spring, thereby making the assembly simple and easy, improving the manufacturing efficiency of products, reducing the manufacturing costs, and improving the market competitiveness of products. Further disclosed is an electric oven.

Description

Knob assembly and electric oven

Technical field

The present invention relates to the field of kitchen appliance technology, and in particular to a knob assembly and an electric oven having the same.

Background technique

At present, as shown in FIG. 1 , in the knob component of the conventional electric oven 20 ′, there are many fixed parts (three or more) of the knob decoration, generally including the knob body 10 ′, the spring 11 ′ and the decorative ring 12 ′. Etc., the structure is complicated, which leads to assembly difficulties, reduces the production efficiency of the product, increases the production cost of the product, and is not conducive to market competition of the product.

Summary of the invention

In order to solve at least one of the above technical problems, it is an object of the present invention to provide a knob assembly which is simple in structure and easy to assemble.

Another object of the present invention is to provide an electric oven having the above-described knob assembly.

In view of this, the embodiment of the first aspect of the present invention provides a knob assembly, disposed on a cooking appliance, comprising: a knob body, the knob body is provided with an adapter on one end thereof; and a decorative ring, the decoration The ring is provided with a mounting cavity adapted to the shape of one end of the knob body, one end of the knob body is disposed in the mounting cavity; wherein the decorative ring comprises: a ring body; and a bottom plate, the bottom plate Provided in the ring body and enclosing the mounting cavity with the ring body, and the bottom plate is provided with a positioning hole and an elastic portion, the adapter portion passes through the positioning hole, and is cooked with The rotary switch shaft of the appliance is coupled, and the knob body abuts against the elastic portion to abut the decorative ring on a control panel of the cooking appliance, and the knob body can drive the decorative ring to rotate.

The knob assembly of the present invention is provided with a positioning hole and an elastic portion on the bottom plate of the decorative ring, so that the adapter portion of the knob body can be connected to the rotary switch shaft of the cooking appliance through the positioning hole, and the knob body abuts on the elastic portion. In order to put the decorative ring on the control panel of the cooking appliance, the structure is simple, compared with the existing technology, The use of the spring component is reduced, unnecessary troubles are caused when the spring is installed, the assembly is simple and easy, the production efficiency of the product is improved, the production cost of the product is lowered, and the market competitiveness of the product is improved.

Specifically, in the knob component of the conventional electric oven, the fixing of the knob decoration has many parts (three or more), generally including the knob body, the spring, the decorative ring, etc., and the structure is complicated, which causes assembly difficulty and reduces the product. The production efficiency increases the production cost of the product, which is disadvantageous to the market competition of the product. However, the knob assembly provided by the present invention has a positioning hole and an elastic portion on the bottom plate of the decorative ring, so that the adapter portion of the knob body can pass through the positioning. The hole is connected with the rotary switch shaft of the cooking appliance, and the knob body abuts on the elastic portion to abut the decorative ring on the control panel of the cooking appliance, and has a simple structure, and reduces the use of the spring component compared with the prior art, thereby avoiding When the spring is installed, unnecessary trouble is caused, the assembly is simple and easy, the production efficiency of the product is improved, the production cost of the product is lowered, and the market competitiveness of the product is improved.

In addition, the knob assembly in the above embodiment provided by the present invention may further have the following additional technical features:

In the above technical solution, the elastic portion includes: a strip-shaped hole, the strip-shaped hole is disposed on the bottom plate; and a deforming portion, one end of the deforming portion is connected to the hole wall of the strip-shaped hole, and The bottom plate forms a cantilever structure; and a support portion is disposed on the other end of the deformation portion and abuts against the knob body.

In this technical solution, one end of the deformation portion is connected to the hole wall of the strip hole on the bottom plate, and a cantilever structure is formed on the bottom plate, and at the same time, the support portion is disposed on the other end of the deformation portion, so that the knob body abuts on the support portion In order to realize that the support portion and the deformation portion form a cantilever structure with the bottom plate, thereby realizing the elastic action of the elastic portion, thereby eliminating the spring member, the assembly is easy and simple, and the assembly efficiency of the product is improved.

In any one of the above aspects, the support portion is a cylinder, and a cross-sectional diameter of the support portion is not greater than a width of the deformation portion.

In the technical solution, the support portion is a cylinder, and the cross-sectional diameter of the support portion is not greater than the width of the deformation portion, thereby avoiding the occurrence of concentrated stress at the dead angle when the two are connected, thereby improving the reliability of the product, and at the same time, the strip hole and the deformation There is a gap between the portions to prevent interference with the hole walls of the strip holes during deformation, which affects the elastic properties of the product.

In any one of the above aspects, the bottom plate has a circular shape, and the strip hole is along a circumference of the bottom plate Provided, and the bottom plate is provided with two elastic portions.

In the technical solution, the bottom plate is circular, the strip holes are arranged along the circumferential direction of the bottom plate, and the bottom plate is provided with two elastic portions, so that the length of the deformation portion should be smaller than the half circumference of the circle where the bottom plate is located, and the two elastic portions The setting increases the elastic performance of the product and ensures the reliability of the product.

In any one of the above aspects, the bottom plate, the deformation portion and the support portion are of a unitary structure.

In the technical solution, the bottom plate, the deformation portion and the support portion are an integral structure, on the one hand, the connection strength between the three is increased, the probability of occurrence of breakage between the three is reduced, and on the other hand, the bottom plate and the deformation are made. The part and the support part can be integrally formed and processed, which is easy to manufacture and manufacture, improves the production efficiency of the product, and reduces the production cost of the product.

In any one of the above aspects, the knob assembly further includes: a limiting post disposed on the bottom plate and located between the bottom plate and the control panel, and the limiting post It is fixedly connected to the inner wall of the ring body.

In the technical solution, the setting of the limiting column increases the structural strength of the bottom plate, and at the same time, the limiting column is fixedly connected with the inner wall of the ring body, which increases the overall structure of the decorative ring and improves the reliability of the product.

In any of the above aspects, the free end of the limiting post protrudes from the ring body.

In the technical solution, the free end of the limiting post protrudes from the ring body, so that when the knob assembly is installed, the limiting post is in close contact with the panel surface of the control panel, and when the knob is rotated, the ring body and the control panel of the decorative ring are made. There is a gap between them, which avoids the friction of the decorative ring and the surface of the control panel during rotation, which leads to the occurrence of the wear ring body, improves the reliability of the product, reduces the wear of the decorative ring, and reduces the maintenance cost of the product.

In any one of the above aspects, at least three of the limiting posts are disposed on the bottom plate, and the limiting posts are evenly distributed along a circumferential direction of the bottom plate.

In the technical solution, at least three limiting posts are arranged on the bottom plate, and the limiting pillars are uniformly distributed along the circumferential direction of the bottom plate, on the one hand, the structural strength of the bottom plate is ensured, and the reliability of the product is improved, on the other hand, When the limit post is in close contact with the control panel, the stability is enhanced, which ensures that the knob assembly is not easy to shake when installed on the control panel, which improves the reliability of the product.

In any of the above aspects, the hole wall of the positioning hole extends in a direction away from the bottom plate to form a flange.

In this technical solution, the hole wall of the positioning hole extends in a direction away from the bottom plate to form a flange, and the flange is made The contact area between the adapter portion and the hole wall of the positioning hole is increased, which ensures that the rotation of the decorative ring is easily driven when the knob body rotates, thereby improving the comfort of use of the product.

An embodiment of the second aspect of the present invention provides an electric oven, comprising: a control panel, the control panel is provided with a through hole; an electric device, a rotating shaft of the electric device is located in the through hole; and any one of the above The knob assembly of the knob assembly, the adapter portion on the knob body of the knob assembly is connected to the shaft through an locating hole on the bottom plate of the knob assembly, and the decorative ring is located at the control panel Between the body of the knob.

The embodiment of the second aspect of the present invention provides the knob assembly provided by the embodiment of the first aspect, wherein the bottom plate of the decorative ring is provided with a positioning hole and an elastic portion, so that the adapter portion of the knob body can pass through the positioning hole and the cooking utensil The rotary switch shaft is connected, and the knob body abuts on the elastic portion to abut the decorative ring on the control panel of the cooking appliance, and has a simple structure, and reduces the use of the spring component compared with the prior art, thereby avoiding the occurrence of the spring when the spring is installed. The necessary troubles make the assembly simple and easy, improve the production efficiency of the product, reduce the production cost of the product, and improve the market competitiveness of the product.

Additional aspects and advantages of the invention will be apparent from the description of the invention.

DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1 is a schematic exploded view of a knob of a prior art electric oven;

2 is a schematic perspective view showing the electric oven of the present invention;

Figure 3 is an exploded perspective view showing the control panel and the knob assembly of the electric oven shown in Figure 2;

Figure 4 is a schematic enlarged view of the portion A of Figure 3;

Figure 5 is a perspective view showing a perspective view of the decorative ring shown in Figure 3;

Figure 6 is a perspective view showing another perspective of the decorative ring shown in Figure 3.

Wherein, the correspondence between the reference numerals and the component names in FIG. 1 is:

10' knob body, 11' spring, 12' decorative ring, 20' electric oven;

The correspondence between the reference numerals and the part names in FIGS. 2 to 6 is:

100 knob assembly, 1 knob body, 11 adapter, 2 decorative ring, 21 mounting cavity, 22 ring body, 23 bottom plate, 231 positioning hole, 2311 flange, 232 elastic part, 2321 strip hole, 2322 deformation part, 2323 support part, 3 limit post, 4 control panel, 41 through hole, 5 shaft, 200 electric oven.

detailed description

The present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a full understanding of the invention, but the invention may be practiced otherwise than as described herein. Limitations of the embodiments.

A knob assembly in accordance with some embodiments of the present invention is described below with reference to FIGS. 2 through 6.

As shown in FIG. 3 to FIG. 6 , the knob assembly 100 provided by the embodiment of the first aspect of the present invention is disposed on the cooking appliance, and includes: a knob body 1 and a bezel 2 .

Specifically, the knob body 1 is provided with an adapter portion 11 on one end thereof; the mounting ring 2 is provided with a mounting cavity 21 adapted to the shape of one end of the knob body 1, and one end of the knob body 1 is disposed in the mounting cavity 21; The decorative ring 2 includes a ring body 22 and a bottom plate 23.

More specifically, the bottom plate 23 is disposed in the ring body 22 and encloses the mounting cavity 21 with the ring body 22, and the bottom plate 23 is provided with a positioning hole 231 and an elastic portion 232, and the adapter portion 11 passes through the positioning hole 231, and The rotating switch shaft of the cooking appliance is coupled, and the knob body 1 abuts against the elastic portion 232 to abut the decorative ring 2 against the control panel 4 of the cooking appliance, and the knob body 1 can drive the decorative ring 2 to rotate.

The knob assembly 100 of the present invention, the bottom plate 23 of the bezel 2 is provided with a positioning hole 231 and an elastic portion 232, so that the adapter portion 11 of the knob body 1 can be connected to the rotary switch shaft of the cooking appliance through the positioning hole 231, the knob The body 1 abuts against the elastic portion 232 to abut the decorative ring 2 against the control panel 4 of the cooking appliance, and has a simple structure. Compared with the prior art, the use of the spring member is reduced, and unnecessary installation when the spring is installed is avoided. Trouble, making the assembly simple and easy, improving the production efficiency of the product, reducing the production cost of the product, and improving the market competitiveness of the product.

In one embodiment of the present invention, as shown in FIGS. 5 and 6, the elastic portion 232 includes a strip hole 2321 and a support portion 2323.

Specifically, the strip hole 2321 is disposed on the bottom plate 23; the deformation portion 2322, one of the deformation portions 2322 The end is connected to the hole wall of the strip hole 2321 and forms a cantilever structure with the bottom plate 23; it is disposed on the other end of the deformation portion 2322 and abuts against the knob body 1.

In this embodiment, one end of the deformation portion 2322 is connected to the hole wall of the strip hole 2321 on the bottom plate 23, and a cantilever structure is formed on the bottom plate 23. At the same time, the support portion 2323 is disposed on the other end of the deformation portion 2322, so that the knob The body 1 is abutted on the supporting portion 2323 to realize the cantilever structure of the supporting portion 2323 and the deforming portion 2322 and the bottom plate 23, thereby realizing the elastic action of the elastic portion 232, thereby eliminating the spring member, facilitating assembly and improving the assembly efficiency of the product. .

In one embodiment of the present invention, as shown in FIG. 5, the support portion 2323 is a cylinder, and the cross-sectional diameter of the support portion 2323 is not greater than the width of the deformation portion 2322.

In this embodiment, the support portion 2323 is a cylinder, and the cross-sectional diameter of the support portion 2323 is not greater than the width of the deformation portion 2322, thereby avoiding the occurrence of concentrated stress at the dead angle when the two are connected, thereby improving the reliability of the product, and at the same time, the strip shape. There is a gap between the hole 2321 and the deformation portion 2322 to prevent interference with the hole wall of the strip hole 2321 when deformed, thereby affecting the elastic properties of the product.

In one embodiment of the present invention, as shown in FIGS. 4 to 6, the bottom plate 23 has a circular shape, and the strip holes 2321 are disposed along the circumferential direction of the bottom plate 23, and the bottom plate 23 is provided with two elastic portions 232.

In this embodiment, the bottom plate 23 has a circular shape, the strip holes 2321 are disposed along the circumferential direction of the bottom plate 23, and the bottom plate 23 is provided with two elastic portions 232 such that the length of the deformation portion 2322 is smaller than the half circumference of the circle in which the bottom plate 23 is located. The arrangement of the two elastic portions 232 increases the elastic properties of the product and ensures the reliability of the product.

In one embodiment of the invention, the bottom plate 23, the deformation portion 2322, and the support portion 2323 are of unitary construction.

In this embodiment, the bottom plate 23, the deformation portion 2322 and the support portion 2323 are of a one-piece structure, on the one hand, the connection strength between the three is increased, the probability of occurrence of breakage between the three is reduced, and on the other hand, The bottom plate 23, the deformation portion 2322 and the support portion 2323 can be integrally formed and processed, which is easy to manufacture and manufacture, improves the production efficiency of the product, and reduces the production cost of the product.

In an embodiment of the present invention, as shown in FIG. 6, the knob assembly 100 further includes: a limiting post 3 disposed on the bottom plate 23 and located between the bottom plate 23 and the control panel 4, and the limit position The column 3 is fixedly connected to the inner wall of the ring body 22.

In this embodiment, the setting of the limiting post 3 increases the structural strength of the bottom plate 23, and at the same time, The position post 3 is fixedly connected to the inner wall of the ring body 22, which increases the overall structure of the bezel 2 and improves the reliability of the product.

In one embodiment of the invention, the free end of the stop post 3 projects out of the ring body 22.

In this embodiment, the free end of the limiting post 3 protrudes from the ring body 22, so that when the knob assembly 100 is installed, the limiting post 3 is in close contact with the panel surface of the control panel, and when the knob is rotated, the decorative ring 2 is made There is a gap between the ring body 22 and the control panel 4, which avoids the occurrence of the wear ring body 22 caused by the friction between the decorative ring 2 and the surface of the control panel during the rotation, which improves the reliability of the product and reduces the wear of the decorative ring 2. Reduced product maintenance costs.

In one embodiment of the present invention, as shown in FIG. 6, at least three limiting posts 3 are disposed on the bottom plate 23, and the limiting posts 3 are evenly distributed along the circumferential direction of the bottom plate 23.

In this embodiment, at least three limiting posts 3 are disposed on the bottom plate 23, and the limiting posts 3 are evenly distributed along the circumferential direction of the bottom plate 23. On the one hand, the structural strength of the bottom plate 23 is ensured, and the reliability of the product is improved. On the other hand, the stability of the limiting post 3 in close contact with the panel surface of the control panel is enhanced, which ensures that the knob assembly 100 is not easily shaken when mounted on the control panel 4, thereby improving the reliability of the product.

In one embodiment of the present invention, as shown in FIGS. 5 and 6, the hole wall of the positioning hole 231 extends in a direction away from the bottom plate 23 to form a flange 2311.

In this embodiment, the hole wall of the positioning hole 231 extends in a direction away from the bottom plate 23 to form a flange 2311. The flange 2311 increases the contact area between the adapter portion 11 and the hole wall of the positioning hole 231, thereby ensuring that the knob body 1 rotates. It is easy to drive the decorative ring 2 to rotate, which improves the comfort of the product.

As shown in FIG. 2, an embodiment of the second aspect of the present invention provides an electric oven 200 comprising: a control panel 4, an electrical device (not shown), and the knob assembly 100 of any of the above.

Specifically, the control panel 4 is provided with a through hole 41; the rotating shaft 5 of the electric device is located in the through hole 41; the adapter portion 11 on the knob body 1 of the knob assembly 100 passes through the positioning hole 231 on the bottom plate 23 of the knob assembly 100. The interference shaft 5 is connected with the rotating shaft 5, and the decorative ring 2 is located between the control panel 4 and the knob body 1.

The embodiment of the second aspect of the present invention provides the knob assembly provided by the embodiment of the first aspect, wherein the bottom plate of the decorative ring is provided with a positioning hole and an elastic portion, so that the adapter portion of the knob body can pass through the positioning hole and the cooking utensil The rotary switch shaft is connected, and the knob body abuts on the elastic portion to abut the decorative ring on the control panel of the cooking appliance, and has a simple structure, and reduces the use of the spring component compared with the prior art, thereby avoiding the occurrence of the spring when the spring is installed. The necessary troubles make the assembly simple and easy, and improve the production efficiency of the product. The production cost of the product is lowered, and the market competitiveness of the product is improved.

In summary, the knob assembly of the present invention is provided with a positioning hole and an elastic portion on the bottom plate of the decorative ring, so that the adapter portion of the knob body can be connected to the rotary switch shaft of the cooking appliance through the positioning hole, and the knob body abuts On the elastic portion, the decorative ring is placed on the control panel of the cooking appliance, and the structure is simple. Compared with the prior art, the use of the spring component is reduced, unnecessary troubles are caused when the spring is installed, and the assembly is simple and easy. The production efficiency of the product is improved, the production cost of the product is lowered, and the market competitiveness of the product is improved.

In the present invention, the terms "first" and "second" are used for the purpose of description only, and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless otherwise Clearly defined. The terms "installation", "connected", "connected", "fixed" and the like should be understood broadly. For example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; "connected" may They are directly connected or indirectly connected through an intermediary. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments" and the like means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in the present invention. At least one embodiment or example. In the present specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A knob assembly, disposed on a cooking appliance, comprising:

a knob body, wherein the knob body is provided with an adapter on one end thereof; and

a decorative ring, the decorative ring is provided with a mounting cavity adapted to the shape of one end of the knob body, and one end of the knob body is disposed in the mounting cavity;

Wherein the decorative circle comprises: a ring body; and

a bottom plate, the bottom plate is disposed in the ring body, and surrounds the ring body with the mounting cavity, and the bottom plate is provided with a positioning hole and an elastic portion, and the adapter portion passes through the positioning hole. And being coupled to the rotary switch shaft of the cooking appliance, the knob body abutting against the elastic portion to abut the decorative ring on a control panel of the cooking appliance, the knob body can drive the The decorative circle rotates.
The knob assembly of claim 1 wherein

The elastic portion includes:

a strip hole, the strip hole being disposed on the bottom plate;

a deformation portion, one end of the deformation portion is connected to the hole wall of the strip hole, and forms a cantilever structure with the bottom plate; and

A support portion is disposed on the other end of the deformation portion and abuts against the knob body.
The knob assembly of claim 2, wherein

The support portion is a cylinder, and a cross-sectional diameter of the support portion is not greater than a width of the deformation portion.
A knob assembly according to claim 3, wherein

The bottom plate has a circular shape, and the strip holes are disposed along a circumferential direction of the bottom plate, and the bottom plate is provided with two elastic portions.
The knob assembly of claim 2, wherein

The bottom plate, the deformation portion and the support portion are of a unitary structure.
The knob assembly according to any one of claims 1 to 5, further comprising:

a limiting post, the limiting post is disposed on the bottom plate and located between the bottom plate and the control panel, and the limiting post is fixedly connected to the inner wall of the ring body.
The knob assembly of claim 6 wherein:

The free end of the limiting post protrudes from the ring body.
The knob assembly of claim 7 wherein:

At least three of the limiting posts are disposed on the bottom plate, and the limiting posts are evenly distributed along a circumferential direction of the bottom plate.
The knob assembly of claim 6 wherein:

The hole wall of the positioning hole extends in a direction away from the bottom plate to form a flange.
An electric oven characterized by comprising:

a control panel, the control panel is provided with a through hole;

An electrical device, the rotating shaft of the electrical device being located within the through hole; and

The knob assembly according to any one of claims 1 to 9, wherein the adapter portion on the knob body of the knob assembly is connected to the shaft through an locating hole in the bottom plate of the knob assembly, and The decorative ring of the knob assembly is located between the control panel and the knob body.