KR20180118098A - Knob assembly having display device for cook top - Google Patents

Abstract

The present invention relates to a knob assembly, installed on a panel of a cooking appliance. The knob assembly comprises: a knob handle coupled to a control shaft to control fire power; a knob ring disposed near the knob handle, disposed to penetrate the panel, and rotated while being independent from the knob handle; a support frame supporting the knob ring; and a knob ring control sensing unit supported by the support frame and sensing control of the knob ring.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a knob assembly having a display device,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a knob assembly of a cooking appliance, and more particularly, to a knob assembly having a display device for displaying information such as fire power or timer time and a cooking appliance including the same.

A cooking device is one of household appliances for cooking food, and is installed in a kitchen space to cook food according to a user's intention. Such cooking devices can be classified into various types according to the heat source or type used and the type of fuel.

Cooking equipment can be classified into open type and closed type cooking equipment depending on the type of space where food is placed. There are ovens and microwave ovens in the closed type cooking devices, and cooktops and hops in the open type cooking devices.

A closed type cooking device is a cooking device that shields a space where food is placed and cooks food by heating a shielded space. The open type cooking device is a cooking device in which a food or food container is placed in an open space and a food or food container is heated to cook food.

The closed type cooking apparatus is provided with a cooking chamber, which is a space that is shielded when the food is placed and food is to be cooked. Such a cooking chamber becomes a space where food is substantially cooked. A heat source is provided in the inside or outside space of the cooking chamber to heat the cooking chamber.

2. Description of the Related Art In recent years, a closed type cooking device and an open type cooking device are installed at the same time, and a plurality of heat sources are combined to provide various cooking utensils and a plurality of foods simultaneously.

In the combined cooking device, an open cooking device is placed on the upper side of the closed cooking device. Also, the open cooking device is provided with a plurality of heaters or burners, and is installed so that a large number of dishes can be cooked at the same time.

When a user makes an oven such as a barbecue or a baking, or grills a meat or a fish, the user uses a closed cooking device to cook the food. When the user puts food into a container and heats the food, I cook with the device.

Among open type cooking devices, an open type cooking device in the form of a gas range is widely used, and is a device for cooking food using a flame generated when the gas is burned.

There are various ways in which the user controls the intensity of the flame of the cooking appliance. A method of controlling the firepower by adjusting the amount of rotation of the knob using a knob rotating around a predetermined rotation axis is widely used. This knob is connected to a valve for controlling the amount of flow of gas to mechanically control the opening and closing amount of the valve. In recent years, the amount of rotation of the knob is electronically measured, and the amount of opening and closing of the valve is electronically controlled Is also applied.

In the case of a cooking appliance or an integrated cooking appliance including an oven, a display device for displaying a timer time, an operation state, and the like may be provided. A timer function is indispensable for an oven requiring long time cooking, and a state in which the state information of the cooking appliance can be displayed through a separate display device is provided even though the dial type timer is provided.

A display device is not essential in the case of having only the gas cooker but a display device is essential in the case of the gas oven rage and a display device for displaying various information is regarded as essential in the complex cooking device have.

However, since the information displayed for each individual product is different, the design of the display screen and the UI have been separately developed.

The present invention provides a knob assembly that includes a display in a knob assembly so that the necessary information can be displayed on the knob assembly so that a separate display is not needed and the knob assembly can be universally applied to a variety of cooking devices in which the knob assembly is installed will be.

It is an object of the present invention to provide a knob assembly having a knob ring that can be independently operated around a knob handle for adjusting a thermal power of a cooking appliance to enable manipulation such as timer time control in addition to a thermal power by using the knob ring .

It is another object of the present invention to provide a knob assembly having a display unit in the knob ring and capable of displaying information such as a thermal power set by the knob handle and a timer time set by operation of the knob ring on the display unit have.

It is still another object of the present invention to provide a knob assembly that can be applied to a general cooking apparatus including an oven.

In order to achieve the above object, the present invention provides a knob handle, comprising: a knob handle coupled to a control shaft for controlling a thermal power; And a knob ring that surrounds the periphery of the knob handle and is disposed to penetrate the front panel and is rotatable independently of the knob handle and includes a display unit.

The knob ring is preferably a return type rotary structure that returns to the initial position when an external force is removed.

The knob encoder may further include a knob encoder for detecting an operation of the knob handle and a knob ring encoder for detecting an operation of the knob ring so that the firepower of the firebox set through the adjustment of the knob handle sensed by the knob encoder, It is more preferable that the timer time set by the operation of the ring is displayed on the display device.

The knob ring may include a support ring coupled to the knob ring, a support frame coupled to the front panel and supporting an outer circumferential surface of the support ring, And a fixing frame for preventing the detachment of the fixing unit.

At this time, it is preferable that the knob ring supports the adjustment shaft at two or more points.

To this end, the knob ring includes: a knob ring body forming an outer tube; a back plate having a support hole coupled to a rear surface of the knob ring body and supporting an adjustment shaft passing therethrough; And may include a support tube to support it. The support tube may include a flange coupled to the back plate, and a tapered tube extending from the flange and having a support for supporting the adjustment shaft.

And a bearing shell having a disc portion inserted between the knob ring and the front panel and a cylindrical portion inserted between the support ring and the support frame to reduce friction during the knob ring operation, .

The knob assembly according to the present invention is provided with a knob ring which can be independently operated around the knob handle so that the timer time of the cooker such as the burner or the oven can be set through the operation of the knob ring.

In addition, since the display device is provided in the knob ring, the firepower or the timer time of the corresponding cooking device can be displayed on the display device, thereby improving the user's convenience.

In addition, the knob assembly according to the present invention can be widely applied not only to a gas range but also to an integrated cooking device including an oven range, an induction range, an electric range, and the like, thereby enabling components to be used in various cooking devices.

1 is a view showing a cooking appliance having a separate display unit.
2 is a front view of a knob assembly according to an embodiment of the present invention.
3 is a cross-sectional view of a knob assembly according to an embodiment of the present invention.
4 is a view illustrating a state in which the knob assembly is separated according to the embodiment of the present invention.
5 is a cross-sectional view illustrating a support structure of a knob assembly according to an embodiment of the present invention.
6 is a rear view of a knob assembly according to an embodiment of the present invention.
7 and 8 are diagrams illustrating a knob ring operation state of the knob assembly according to the embodiment of the present invention.
9 is a diagram illustrating a knob ring encoder of a knob assembly according to an embodiment of the present invention.
10 is a diagram illustrating a knob encoder of a knob assembly according to an embodiment of the present invention.
11 is an exploded perspective view of a knob ring according to an embodiment of the present invention. FIG.
12 is a rear exploded perspective view of a part of a knob ring according to an embodiment of the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or preliminary meaning and the inventor shall properly define the concept of the term in order to describe its invention in the best possible way It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention. It should be noted that the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention, It should be understood that various equivalents and modifications are possible.

1 is a view showing a cooking appliance having a separate display unit.

As shown in the figure, the cooking apparatus 10 having the oven includes a knob 11 for adjusting the thermal power, a knob 12 for adjusting the timer time, a display device (not shown) for displaying the state of the cooking apparatus 15, and a switch 16 for separate operation.

In the case of an oven, it is often necessary to prepare for a long period of time, and therefore, a timer for setting the operation time of the oven is considered to be essential.

For uniformity of design and ease of operation, a rotary switch is widely applied to the knob 11 for adjusting the thermal power and the knob 12 for adjusting the timer time.

The display device 15 serves to display the operation state of the cooking device and the like. The information displayed on the display device 15 may be the output (temperature) of the burner and the timer time, the cooking mode of the automatic cooking function, and the like.

However, as described above, when the configuration of the cooking apparatus of the cooking appliance is changed, or when the specification of the product is changed, the information or the UI displayed on the display device 15 is changed accordingly, .

In addition, since the knob 11 for adjusting the thermal power and the knob 12 for setting the timer time have the same shape, it is excellent in terms of design, but it is difficult to determine which knob performs which function It was difficult to recognize intuitively.

In order to solve this problem, the present invention has a knob handle for adjusting the thermal power of the cooking appliance and a knob ring for adjusting the timer time of the cooking appliance, and a display device is provided in the knob ring, The present invention provides a knob assembly that is excellent in design and has advantages in terms of component sharing.

FIG. 2 is a front view of a knob assembly according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of a knob assembly according to an embodiment of the present invention. FIG. 5 is a cross-sectional view illustrating a support structure of a knob assembly according to an embodiment of the present invention. Referring to FIG.

Hereinafter, each component of the knob assembly according to an embodiment of the present invention will be described.

[Knob Handle (110)]

The knob handle 110 is connected to the adjustment shaft 194 of the thermal power control unit 190 for controlling the thermal power.

The knob handle 110 may be configured as a non-return type rotary switch.

The knob handle 110 is a shape that maintains the position rotated by the user, and can recognize the output of the crane according to the angle at which the knob handle 110 is rotated.

For example, in the case of a gas burner, the thermal power control unit 190 may be a valve assembly. In the case of an electric range or an induction range, the thermal power control unit 190 may include an output control means (for example, a variable resistor) .

The knob handle 110 is basically a circular shape and has a protruding handle. In the illustrated embodiment, the handle portion is protruded by a bar-like shape, but the shape of the handle portion may be variously changed.

The knob handle 110 may be made of a synthetic resin injection material or may be manufactured by processing a metal material. The material and shape of the knob handle 110 can be variously modified.

[Knob ring (120)]

The knob ring 120 is disposed on the outer peripheral surface of the knob handle 110 to improve the appearance around the knob handle 110.

Basically, the knob ring 120 serves to support the knob handle 110 and finish the appearance around the knob handle 110 to improve the appearance quality.

In the present invention, the knob ring 120 serves to constrain the position of the knob handle 110. Since the flexible valve capable of moving the adjustment shaft 194 is applied to the present invention, when the knob handle 110 is simply coupled to the adjustment shaft 194, the knob handle 110 arbitrarily flows vertically and horizontally, Which is undesirable in view of the above.

The knob ring 120 according to the present invention restricts the position of the knob handle 110 and plays a role of keeping the knob handle 110 in a fixed position.

In addition, the knob ring 120 of the present invention is capable of serving as a timer operating switch and a display for displaying the timer time and the size of the thermal power.

The knob ring 120 is rotatable independently of the knob handle 110 so that the timer time can be set through the operation of the knob ring 120 and the display device 123 is mounted on the knob ring 120 So that the timer time and the size of the thermal power can be displayed through the display unit 123. [

A knob encoder E1 which is a knob operation sensing unit for sensing the amount of rotation of the knob handle 110 and a knob ring encoder E2 which is a knob operation sensing unit for sensing the rotation amount of the knob ring 120 Respectively. The knob encoder E1 detects the amount of rotation of the gear G1 coupled to the valve shaft 194 and the knob ring encoder E2 rotates the gear portion G2 provided in the support ring 150 Detection.

The knob handle 110 and the knob ring 120 are exposed to the outside of the front panel C of the cooking apparatus.

The display unit 123 may display a fire power and a timer time.

The thermal power displayed on the display 123 can be sensed and displayed from the amount of rotation of the knob handle 110 so that the timer time displayed on the display 123 is detected and displayed from the operation of the knob ring 120 can do.

Meanwhile, the display device 123 may include a portion for displaying the thermal power and a portion for displaying the timer time. However, as shown in the figure, one display 123 may selectively display the thermal power and the timer time have.

For example, when the timer is not set, only the thermal power is displayed. If the timer is set, the timer can be displayed for a predetermined time after the thermal power is displayed for a certain period of time.

In this case, it is more preferable that the user can easily confirm whether the number of the lighting color when the fire power is displayed and the color of the lighting when the timer time is displayed indicates the fire power or the timer time .

For example, you can display firepower in red and timer time in white (or blue). If both firepower and timer are displayed, the timer can be displayed for 2 seconds after the firepower is displayed for 2 seconds.

In this way, the fire power and the timer time can be adjusted through the knob assembly, and if the fire power and the timer time can be both displayed through the knob assembly, a separate display unit may not be required on the front panel.

Further, the structure of such a knob assembly can be applied to both the oven range including the oven and the cooktop including only the burner, and has an advantage that it can be used as a common part among them.

[Support ring (150)]

The support ring 150 is coupled to the back surface of the knob ring 120 and rotates integrally with the knob ring 120.

The rotation amount of the support ring 150 and the rotation amount of the knob ring 120 become equal. Therefore, the operation of the knob ring 120 can be sensed by detecting the amount of rotation of the support ring 150. [

To this end, the support ring 150 may be provided with a gear portion G2.

[Support frame 140]

The support frame 140 is coupled to the front panel C to support the knob ring 120. The knob handle 110 and the knob ring 120 are coupled to an aligned position of the front panel C, wherein the front panel C is made of a thin metal plate. Therefore, when the front panel C is formed with a hole and the knob ring 120 is directly rubbed against the hole, the knob ring 120 is cut. Therefore, the support frame 140 is engaged so as to be aligned with the holes formed in the front panel (C).

The support frame 140 is provided with a guide groove corresponding to the outer diameter of the support ring 150 coupled with the knob ring 120. In other words, the outer peripheral surface of the support ring 150 is supported by the support frame 140 and can be rotated at a predetermined position.

In other words, the position of the knob ring 120 is determined by the support frame 140, and the support frame 140 is fastened to the front panel C, As shown in FIG.

The support frame 140 surrounds the outer circumferential surface of the support ring 150 and supports the support ring 150 so that the support ring 150 can rotate about a certain axis.

The support frame 140 is fastened to the burner frame 200 to which the thermal power control unit 190 is fixed and the guide bar 210.

The guide bar 210 fixes the burner frame 200 and the support frame 140 so that the support frame 140 can be fixed at a predetermined position with respect to the burner frame 200.

[Fixed frame 160]

The fixing frame 160 is fastened and fixed to the support frame 140 by a fastening means such as a screw and serves to prevent the support ring 150 from being detached from the stationary frame 160 rearward (toward the inside of the cooking apparatus) .

The fixed frame 160 restrains the rotation range of the support ring 150 and restricts the support ring 150 and the knob ring 120 to rotate in the left and right directions only within a certain angle range .

As shown in the figure, the fixed frame 160 has a shape similar to a bow-like tie, and the angle of the portion corresponding to the wing of the butterfly is limited to be able to rotate within a certain angle range of the support ring 150, The portion connecting the wings prevents the support ring (150) from falling backward.

[Bearing shell (130)]

The bearing shell 130 serves as a bearing for smooth operation of the knob ring 120.

The bearing shell 130 is provided with a cylindrical cylindrical portion 134 and a circular plate portion 132 which is bent at the cylindrical portion 134 and protruded in the radial direction.

The cylindrical portion 134 is inserted between the outer peripheral surface of the support ring 150 coupled with the knob ring 120 and the inner peripheral surface of the fixed frame 160 to reduce the friction between the support ring 150 and the fixed frame 160 .

The disc portion 132 is inserted between the front panel C and the knob ring 120 to reduce the friction between the knob ring 120 and the front panel C. [ The disc portion 132 also serves to reduce the occurrence of scratches on the front panel C by operating the knob ring 120 by making the knob ring 120 spaced from the front panel C by a predetermined distance.

[Return spring (S1, S2)]

The knob ring 120 according to the present invention provides a return type operation structure. That is, the knob ring 120 can be operated in a clockwise or counterclockwise direction within a certain angle range, and the knob ring 120 is returned to its original position when the external force is released.

The return springs S1, S2 provide restoring force to return the knob ring 120 back to its original position. The return spring includes a first return spring (S1) that provides a restoring force in a clockwise direction and a second return spring (S2) that provides a restoring force in a counterclockwise direction.

When the external force is not applied, the elastic force of the first return spring S1 and the second return spring S2 is balanced, and the knob ring 120 maintains the initial position.

Both ends of the return spring S1 and S2 can be fixed to the support ring 150 and the support frame 140 to which the fixed frame 160 is fixed. The support ring 150 and the knob ring 120 integrally rotate so that the knob ring 120 maintains the initial position due to the elastic force of the return springs S1 and S2 and the clockwise or counter- It can rotate.

FIG. 6 is a rear view of a knob assembly according to an embodiment of the present invention, and FIG. 7 and FIG. 8 are views showing knob ring operation states of a knob assembly according to an embodiment of the present invention.

In the drawing, the front panel is not shown for convenience of illustration.

The knob ring 110 and the knob ring 120 are coupled to the front surface of the front panel and the support frame 140, the support ring 150 and the fixing frame 160 are coupled to the rear surface of the front panel.

The fixing frame 160 is fastened to the rear surface of the front panel C and the supporting ring 150 is fastened to the knob ring 120 through the front panel. Here, the rotation center of the support ring is arranged so as to coincide with the axis of the adjustment shaft 114. In other words, the support ring 150 serves to restrain the axis of the adjustment shaft 114 to a predetermined position with respect to the front panel C. In other words, when the support ring 150 is fixed in position relative to the front panel, the adjustment shaft 114 can thereby be fixed in the correct position with respect to the front panel C.

The support ring 150 is inserted into the support frame 140 and partially protrudes from the front panel front surface through the front panel. The front end of the support ring 150 is formed in a cylindrical shape and the cylindrical portion protrudes to the front surface of the front panel C. [

A knob ring 120 is coupled to a support ring 150 protruding from the front surface of the front panel C. In other words, since the knob ring 120 and the support ring 150 are coupled, the knob ring 120 is consequently supported by the support frame 140.

The operation of the knob ring 120 can be recognized from the rotation of the support ring 150. Since the knob ring 120 is exposed to the outside of the front panel C, when the knob ring 120 is provided around the knob ring 120 to detect an operation of the knob ring 120 on the outside of the front panel, the appearance is not good. Since the knob ring 120 is integrally coupled to the support ring 150, the rotation of the knob ring 120 can be sensed by detecting the rotation of the support ring 150 by providing the encoder E2 around the support ring .

The support ring 150 is provided with a knob ring gear portion G2 for transmitting a rotation angle. The present invention further includes a knob ring encoder E2 which is engaged with the gear portion G2 to read the rotation angle of the support ring 150. [ The knob ring encoder E2 meshes with the knob ring gear G2 to read the rotational manipulation signal of the knob ring 120. [

On the other hand, the support ring 150 is connected to a pair of return springs S1 and S2 for returning to a predetermined position. It is preferable that the return springs S1 and S2 connect the support frame 140 supporting the support ring 150 and the support ring 150. [

One return spring S1 provides an elastic force in the clockwise direction when the support ring 150 is operated in the counterclockwise direction to provide an elastic force to return to the home position and the other return spring S2 contacts the support ring 150 are operated in the clockwise direction, they provide an elastic force in a counterclockwise direction to provide an elastic force to return to the home position.

Meanwhile, the support ring 150 may be provided with a fixing frame 160 for preventing the support ring 150 from being separated from the back surface and allowing the support ring 150 to operate stably.

The fixed frame 160 serves to prevent the support ring 150 from falling to the back surface across the back surface of the support ring 150.

The fixed frame 160 is fastened to the support frame 140. The fixed frame 160 can restrict the rotation range of the support ring 150.

As shown in the figure, the support ring 150 includes a wing 153 extending to one side, and has a structure in which a pair of return springs S1 and S2 are fixed to the wing 153. As shown in FIG.

At this time, if the rotation range of the wing 153 is limited by the fixed frame 160, the bidirectional rotation angle roll of the support ring 150 can be restricted to a certain degree.

The wing portions 153 may be provided on both sides so that the rotation of the support ring 150 is more stably restrained so that the fixed frame 160 can limit the rotation range of the wings on both sides equally.

Figure 9 illustrates a knob ring encoder of a knob assembly in accordance with an embodiment of the present invention, and Figure 10 illustrates a knob encoder of a knob assembly in accordance with an embodiment of the present invention.

The knob assembly according to the present invention is capable of adjusting the thermal power through the operation of the knob handle and displaying the timer time through the operation of the knob ring.

To this end, a knob ring includes a display device, and includes a knob encoder E1 for detecting the operation state of the knob handle, and a knob ring encoder E1 for detecting the operation of the knob ring.

The knob ring encoder E2 is engaged with the gear portion G2 of the support ring 150 to sense the rotation of the support ring. The knob ring 120 according to the present invention can be rotated within a certain range when an external force is applied to the knob ring 120. When the external force is released, the knob ring 120 returns to the home position.

For example, if the timer rotates at a constant angle in the clockwise direction, the timer time increases. When the counterclockwise eccentricity rotates at a constant angle, the timer time is decreased.

The knob handle 110 is connected to the adjustment shaft 194 of the thermal power control unit 190. The control shaft of the thermal power control unit 190 is a non-return type that maintains the operated position, and the knob encoder E1 senses the amount of rotation (operation angle) from the reference position.

The knob encoder E1 is engaged with the gear G1 coupled to the adjusting shaft 194 to sense the rotation of the adjusting shaft 194.

In the case of a cooker having an electrically controlled thermal power such as an electric range or an induction range, the thermal power control unit 190 is formed of a variable resistor or the like, so that the state of the thermal power control unit 190 can be detected without a separate knob encoder E1 You may.

11 is an exploded perspective view of a knob ring according to an embodiment of the present invention. And Fig. 12 is a rear exploded perspective view of a part of the knob ring according to the embodiment of the present invention.

As shown, the knob ring 120 according to an embodiment of the present invention includes a knob ring body 124 forming an outer tube, a back plate 125 coupled to the back surface of the knob ring body 124, And a support tube 126 coupled to the plate 125 and supporting the adjustment shaft.

The back plate 125 has a support plate 125b that enters the inside of the front panel and projects to the inside of the cooking apparatus. The support plate 125b is provided with a support hole 125c for supporting the adjustment shaft.

The support plate 126 is coupled to the back plate 125. The support tube 126 includes a flange 126a coupled to the back plate 125 and a tapered tube 126b extending from the flange 126a and a support lip 126d extending longer than the tapered tube 126b. Respectively.

The taper pipe 126b has a tapered shape having a smaller diameter as it gets farther from the flange 126a, and a support portion 126c for supporting the adjustment shaft is provided at the tip end thereof.

In other words, the adjustment shaft is supported at two points of the support hole 125c and the support portion 126c.

In the valve structure in which the adjustment shaft is conventionally constrained to a fixed position, a structure is required to stably support the adjustment shaft 194 since the adjustment shaft 194 is changed to a flexible valve capable of flowing.

For this purpose, it is preferable to support at least two adjustment shafts 194 in the knob ring.

It is further preferable that the knob ring 120 not only supports the adjusting shaft 194 at two or more points but also can support the front end of the gear G1 coupled to the adjusting shaft 194. [ The gear G1 (FIG. 4) is for transmitting the amount of rotation of the adjustment shaft 194 to the knob encoder E1, and can be supported by the support lip 126d.

In the meantime, the present invention is characterized in that a knob ring 120 is provided with a display unit capable of displaying a thermal power or a timer time.

As shown, the display unit 123 is coupled to the knob ring body 124 via the display housing 122, and a finishing cap 121 is coupled to the outside of the display unit. The finishing cap 121 may be made of transparent or semi-transparent material so that the information displayed on the display 123 can be viewed from the outside.

It is to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and the scope of the present invention will be indicated by the appended claims rather than by the foregoing detailed description. It is intended that all changes and modifications that come within the meaning and range of equivalency of the claims, as well as any equivalents thereof, be within the scope of the present invention.

E1: Knob encoder E2: Knob ring encoder
S1, S2: return spring 110: knob handle
120: knob ring 122: display housing
123: display device 124: knob ring body
125: back plate 125b:
125c: Support hole 126: Support tube
126d: support lip 126c:
126b: tapered pipe 126a: flange
130: bearing shell 132:
134: Cylinder part 140: Support frame
150: Support ring 153:
160: stationary frame 170: joint
172: housing 174: first shaft support
190: Thermal power control unit 194: Control shaft

Claims (11)

A knob assembly installed on a panel of a cooking appliance,
The knob assembly includes:
A knob handle coupled to an adjustment shaft for controlling the thermal power;
A knob ring disposed around the knob handle and disposed to penetrate the panel and rotatable independently of the knob handle;
A support frame for supporting the knob ring; And
And a knob ring operation sensing portion supported by the support frame and sensing an operation of the knob ring.
The method according to claim 1,
Wherein the knob ring is a return type rotary structure that returns to an initial position when an external force is removed.
The method according to claim 1,
The knob assembly further includes a support ring coupled to the knob ring,
The support ring is disposed on a back surface side of the panel,
Wherein the support frame is coupled to a back surface of the panel and supports the knob ring by supporting the support ring.
The method of claim 3,
And a fixed frame coupled to the support frame to prevent the support ring from departing.
The method of claim 3,
Wherein the knob ring operation sensing unit senses rotation of the support ring.
The method according to claim 1,
Wherein the knob ring supports the adjustment shaft at two or more points.
The method according to claim 6,
The knob ring
A knob ring body forming an outer appearance,
A back plate coupled to a back surface of the knob ring body,
And a support tube disposed on the back plate and supporting the adjustment shaft.
The method according to claim 1,
And a knob operation sensing unit for sensing an operation of the knob handle.
9. The method of claim 8,
Wherein the knob operation sensing unit senses rotation of the adjustment shaft.
The method according to claim 1,
Further comprising a bearing shell having a disc portion inserted between the knob ring and the panel.
A panel on which a knob assembly according to any one of claims 1 to 10 is installed;
And a thermal power control unit having the control shaft for controlling the thermal power.

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