KR102018055B1 - 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 cooker, the knob assembly comprising: a knob handle coupled to an adjustment shaft for adjusting the thermal power; A knob ring disposed around the knob knob and penetrating the panel, the knob ring rotatable independently of the knob knob; A support frame supporting the knob ring; And a knob ring manipulation detecting unit supported by the support frame and sensing manipulation of the knob ring.

Description

Knob assembly having a display and a cooking apparatus including the same {KNOB ASSEMBLY HAVING DISPLAY DEVICE FOR COOK TOP}

The present invention relates to a knob assembly of a cooker, and more particularly, to a knob assembly having a display for displaying information such as firepower or timer time, and a cooker including the same.

The cooking appliance is one of home appliances for cooking food and is installed in a kitchen space to cook food according to a user's intention. Such cooking apparatuses may be classified into various types according to heat sources or types used and types of fuels used.

When the cooking appliances are classified according to the type of cooking food, the cooking appliances may be classified into open and closed cooking appliances according to the shape of the space in which the food is placed. Enclosed cookers include ovens and microwave ovens, and open cookers include cooktops and hops.

The hermetic cooking appliance is a cooking appliance that shields a space where food is located and heats the shielded space to cook food. The open cooking appliance is a cooking appliance for placing food or food containers in an open space and cooking food by heating the food or food containers.

The hermetic cooking apparatus is provided with a cooking chamber which is a shielded space when food is to be cooked while food is being placed. Such a cooking chamber becomes a space where food is cooked substantially. A heat source is provided inside or outside the cooking chamber to heat the cooking chamber.

In recent years, a combination cooking apparatus capable of simultaneously cooking a variety of foods and cooking a plurality of foods while a plurality of heat sources are combined and a closed cooking device and an open cooking device are installed at the same time has been proposed.

In the multi-cooker, an open cooker is positioned above the sealed cooker. In addition, the open cooking appliance is provided with a plurality of heaters or burners are installed to enable a plurality of dishes at the same time.

When the user cooks an oven dish such as barbecue or bakery, grills meat or fish, it is cooked using an airtight cooker, and when cooking the food in a container and heating it, the open cooking is exposed at the top. You will cook using the device.

Representatively used among the open cooking appliance, an open cooking appliance of the gas range type, is an appliance for cooking food using a flame generated when the gas is burned.

There are many ways for the user to adjust the intensity of the flame of the cooking appliance, the method of controlling the thermal power by adjusting the amount of rotation of the knob using a knob that rotates around a predetermined axis of rotation has traditionally been widely used. These knobs are connected to a valve that controls the flow rate of gas, and mechanically control the opening and closing amount of the valve. Recently, the knob rotation is electronically measured, and the valve opening and closing amount is electronically controlled based on the measured result. The way to do it is also applied.

In the case of a cooking appliance or a composite cooking appliance including an oven, a display device for displaying a timer time, an operation state, and the like may be provided. In the case of an oven that requires a long time cooking, the timer function may be referred to as essential. In some cases, the timer may be provided with a dial type timer. However, the oven may provide a structure capable of displaying status information of the cooking apparatus through a separate display.

Even if it is equipped with the same cooktop, the display is not essential in the case of having only the gas range, but in the case of the gas oven range, the display is indispensable. have.

However, since the information to be displayed for each product is different, the design of the display screen, the UI, etc. were separately developed accordingly.

The present invention provides a knob assembly having a display on the knob assembly, so that necessary information can be displayed on the knob assembly, so that a separate display is not required, and the knob assembly can be universally applied to various cooking appliances in which the knob assembly is installed. will be.

SUMMARY OF THE INVENTION An object of the present invention is to provide a knob assembly having a knob ring that can be operated independently around a knob knob for adjusting the fire power of a cooking appliance, so that operation such as timer time adjustment can be performed in addition to the fire power using the knob ring. .

Another object of the present invention is to provide a knob assembly having a display on the knob ring so that information such as a thermal power set by the knob knob and a timer time set by the operation of the knob ring can be displayed on the display. have.

Still another object of the present invention is to provide a knob assembly that can be universally applied to a composite cooking appliance including an oven.

The present invention for achieving this object, the knob handle coupled to the adjustment shaft for adjusting the fire power; And a knob ring surrounding the knob handle and disposed to penetrate the front panel, the knob ring being rotatable independently of the knob knob and having a display.

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

The apparatus may further include a knob encoder for detecting an operation of the knob knob, a knob ring encoder for detecting an operation of the knob ring, and a firepower of the fireball set through adjustment of the knob knob detected by the knob encoder, and the knob. More preferably, the timer time set by the operation of the ring is displayed on the display.

Meanwhile, for smooth operation of the knob knob and the knob ring, a support ring coupled to the knob ring, a support frame coupled to the front panel to support an outer circumferential surface of the support ring, and coupled to the support frame, the support ring It may further include a fixed frame to prevent the departure of.

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

To this end, the knob ring is a back plate having a knob ring body forming an appearance, a support hole coupled to a rear surface of the knob ring body and supporting a control shaft therethrough, and coupled to the back plate, the control shaft being coupled to the rear plate. And supporting support tubes. In addition, the support tube may include a taper tube having a flange coupled to the rear plate, and a support portion extending from the flange and supporting the control shaft.

In addition, the bearing shell further includes a disk 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. It is preferable.

Knob assembly according to the present invention has a knob ring that can be operated independently around the knob knob, it is possible to set the timer time of the cooker, such as a burner or oven through the operation of the knob ring.

In addition, a display device is provided in the knob ring, and thus, the heating power or the timer time of the corresponding cooker may be displayed on the display, thereby improving the user's convenience.

In addition, the knob assembly according to the present invention can be universally applied to a composite cooker including a gas range as well as an oven range, an induction range, an electric range, and the like, thereby bringing an effect of sharing parts to various cookers.

1 is a view illustrating 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.
Figure 4 is a view showing a detached state of the knob assembly according to an 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.
Figure 6 is a view showing the back of the knob assembly according to an embodiment of the present invention.
7 and 8 are views showing a knob ring operation state of the knob assembly according to an embodiment of the present invention.
9 illustrates a knob ring encoder of a knob assembly according to an embodiment of the present invention.
10 illustrates 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. Drawing.
12 is a rear exploded perspective view of some components of a knob ring according to an embodiment of the present invention.

The terms or words used in this specification and claims are not to be construed as limiting in their usual or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best describe their invention. Based on the principle that it can, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. In addition, the embodiments described in the specification and the drawings shown in the drawings are only one of the most preferred embodiments of the present invention, and do not represent all of the technical spirit of the present invention, it is possible to replace them at the time of the present application It should be understood that there may be various equivalents and variations in the range.

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

As shown, the cooking appliance 10 having an oven includes a knob 11 for adjusting the thermal power on the front, a knob 12 for adjusting the timer time, and a display for displaying the state of the cooking appliance ( 15) and a switch 16 for a separate operation.

In the case of the oven, cooking is often necessary for a long time, and a timer for setting the operation time of the oven is considered to be essential.

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

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

However, as described above, when the composition of the cooking apparatus of the cooking appliance is changed or the specification of the product is changed, the information or UI displayed on the display 15 is changed accordingly, and accordingly, the display apparatus must be individually designed. Had

In addition, the knob 11 for adjusting the thermal power and the knob 12 for setting the timer time have the same shape, which is excellent in terms of design but which knob performs a function in terms of user convenience. It had a problem that was difficult to recognize intuitively.

The present invention includes a knob knob for adjusting the firepower of the cooking appliance, a knob ring for adjusting the timer time of the cooking appliance, etc., in order to solve such a problem, the user can intuitively use the display device in the knob ring. It is possible to provide a knob assembly that is possible, has a good design, and has advantages in terms of component sharing.

Figure 2 is a view showing the front of the knob assembly according to an embodiment of the present invention, Figure 3 is a cross-sectional view of the knob assembly according to an embodiment of the present invention, Figure 4 is a knob assembly according to an embodiment of the present invention 5 is a cross-sectional view illustrating a support structure of a knob assembly according to an exemplary embodiment of the present invention.

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

[Knob handle (110)]

Knob knob 110 is connected to the control shaft 194 of the thermal power control unit 190 to adjust the thermal power.

Knob knob 110 may be configured as a non-return rotary switch.

The knob knob 110 maintains the position rotated by the user as it is, and can recognize the output of the corresponding crater according to the angle at which the knob knob 110 is rotated.

For example, in the case of a gas burner, the thermal power control unit 190 becomes a valve assembly, and in the case of an electric range or an induction range, the thermal power control unit 190 adjusts the output (for example, a variable resistor). Becomes

Knob knob 110 has a circular shape basically and has a shape having a protruding handle portion. In the illustrated embodiment, the shape of the handle portion protruding into a bar shape or the shape of the handle portion may be variously changed.

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

[Knob ring 120]

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

Basically, the knob ring 120 serves to support the knob knob 110 and to close the exterior of the knob knob 110 to improve appearance quality.

In the present invention, the knob ring 120 serves to restrain the position of the knob knob 110. According to the present invention, a flexible valve capable of moving the adjustment shaft 194 is applied. When the knob knob 110 is simply coupled to the adjustment shaft 194, the knob knob 110 may be arbitrarily flowed in the up, down, left, and right directions, so Not preferable in terms of

The knob ring 120 according to the present invention restrains the position of the knob knob 110 to serve to maintain the knob knob 110 in a constant position.

In addition, the knob ring 120 of the present invention is characterized in that it can serve as a timer operation switch, and a display for displaying the size of the timer time and the thermal power.

The knob ring 120 is rotatable independently of the knob knob 110, the timer time can be set through operation of the knob ring 120, and the display 123 is placed on the knob ring 120. It is provided to display the timer time and the magnitude of the thermal power through the display 123.

To this end, the knob encoder E1, which is a knob manipulation sensing unit for sensing the rotation amount of the knob knob 110, and the knob ring encoder E2, which is a knob ring manipulation sensing unit for sensing the rotation amount of the knob ring 120, is provided. It is provided. The knob encoder E1 senses the amount of rotation of the gear G1 coupled to the valve shaft 194, and the knob ring encoder E2 detects the rotation of the gear portion G2 provided in the support ring 150, which will be described later. Detect.

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

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

The thermal power displayed on the display 123 may be detected and displayed from the rotation amount of the knob knob 110, and the timer time displayed on the display 123 may be detected and displayed from an operation of the knob ring 120. can do.

On the other hand, the display 123 may be composed of a portion for displaying the thermal power, and a portion for displaying the timer time, as shown in the display unit 123 and the thermal power and timer time can be selectively displayed. have.

For example, when the timer is not set, only the thermal power is basically displayed. When the timer is set, the thermal power is displayed for a predetermined time and then the timer time is displayed for a predetermined time.

At this time, it is more preferable that the user can easily check whether the displayed number indicates the thermal power or the timer time by changing the lighting color when the thermal power is displayed and the lighting color when the timer time is displayed. .

For example, the thermal power may be displayed in red and the timer time may be displayed in white (or blue). If both the thermal power and the timer are displayed, the thermal power may be displayed for two seconds, and then the timer may be displayed for the next two seconds.

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

In addition, the structure of the knob assembly can be applied to both the cooktop including only the oven range or burner having an oven, there is an advantage that can be used as a common component between them.

[Support ring 150]

The support ring 150 is coupled to the rear surface of the knob ring 120 to rotate integrally with the knob ring 120.

The amount of rotation of the support ring 150 and the amount of rotation of the knob ring 120 are equal. Therefore, by sensing the amount of rotation of the support ring 150, it is possible to detect the manipulation of the knob ring 120.

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

[Support Frame 140]

The support frame 140 is coupled to the front panel C to serve to support the knob ring 120. Knob knob 110 and knob ring 120 is coupled to the aligned position of the front panel (C), the front panel (C) is made of a thin metal material. Therefore, when the hole is formed in the front panel C and the knob ring 120 is directly rubbed against the hole, the knob ring 120 is cut. Therefore, the support frame 140 is coupled to be aligned with the hole 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 support ring 150 has an outer circumferential surface supported by the support frame 140 and may be rotated at a predetermined position.

In other words, since 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, the position of the knob ring 120 is the front panel C. It can be fixed based on.

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

In addition, the support frame 140 is fastened by the burner frame 200 and the guide rod 210 to which the thermal power control unit 190 is fixed.

The guide rod 210 fixes the burner frame 200 and the support frame 140. As a result, the support frame 140 may be fixed at a predetermined position with respect to the burner frame 200.

[Fixed frame 160]

The fixing frame 160 is fastened to the support frame 140 by fastening means such as a screw, and is fixed. The fixing frame 160 prevents the support ring 150 from moving backward from the fixing frame 160 (to the inside of the cooking appliance). Do this.

In addition, the fixing frame 160 restrains the rotation range of the support ring 150 to serve to limit the support ring 150 and the knob ring 120 to rotate in the left and right directions only within a predetermined angle range. .

As shown, the fixing frame 160 has a shape similar to that of a bow tie, and the angle of the portion corresponding to the wing of the butterfly restricts the support ring 150 to be rotated within a certain angle range. The portion connecting the wings prevents the departure of the support ring 150 to the rear.

[Bearing Shell 130]

The bearing shell 130 serves as a bearing to facilitate the manipulation of the knob ring 120.

The bearing shell 130 includes a cylindrical cylindrical portion 134 and a disc portion 132 that is bent from the cylindrical portion 134 and protrudes in the radial direction.

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

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. FIG. The disc part 132 also serves to reduce scratches on the front panel C by manipulating the knob ring 120 by allowing the knob ring 120 to be spaced apart from the front panel C by a predetermined distance.

[Return springs (S1, S2)]

Knob ring 120 according to the present invention provides a return operation structure. In other words, the knob ring 120 can be operated within a predetermined angle range in a clockwise or counterclockwise direction, but when the external force is released, the knob ring 120 returns to its original position.

The return springs S1 and S2 provide a restoring force for the knob ring 120 to return to its original position. The return spring includes a first return spring S1 providing a restoring force in a clockwise direction and a second return spring S2 providing a restoring force in a counterclockwise direction.

When no external force is applied, the elastic force of the first return spring (S1) and the second return spring (S2) is balanced to maintain the knob ring 120 in the initial position.

Both ends of the return springs S1 and S2 may be fixed to the support ring 150 and the support frame 140 to which the fixing frame 160 is fixed. Since the support ring 150 and the knob ring 120 are integrally rotated, the knob ring 120 maintains its initial position by the elastic force of the return springs S1 and S2, and is fixed at an angle in a clockwise or counterclockwise direction. Can rotate

Figure 6 is a view showing the back of the knob assembly according to an embodiment of the present invention, Figure 7 and Figure 8 is a view showing a knob ring operating state of the knob assembly according to an embodiment of the present invention.

In the drawings, the front panel is omitted for convenience of illustration.

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

The fixing frame 160 is fastened to the rear surface of the front panel C, and the support ring 150 is fastened to the knob ring 120 through the front panel. Here the center of rotation of the support ring is arranged to coincide with the axis of the adjusting shaft 114. In other words, the support ring 150 serves to restrain the shaft center of the adjustment shaft 114 to be in the correct position with respect to the front panel C. In other words, when the support ring 150 is fixed in position with respect 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 through the front panel to the front of the front panel. The front end of the support ring 150 is formed in a cylindrical shape, the cylindrical portion is to protrude to the front of the front panel (C).

The knob ring 120 is coupled to the support ring 150 protruding to the front 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.

Manipulation of the knob ring 120 may be recognized from rotation of the support ring 150. Since the knob ring 120 is a portion exposed to the outside of the front panel C, when an encoder is provided around the knob ring 120 to detect an operation of the knob ring 120 from the outside of the front panel, the knob ring 120 is not good in appearance. Since the knob ring 120 is integrally coupled with the support ring 150, an encoder E2 may be provided around the support ring to detect rotation of the support ring 150 to detect rotation of the knob ring 120. .

The support ring 150 is provided with a knob ring gear portion G2 for transmitting a rotation angle. In addition, the present invention is provided with a knob ring encoder (E2) to be 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 portion G2 to read the rotation operation signal of the knob ring 120.

Meanwhile, the support ring 150 is connected to a pair of return springs S1 and S2 for returning to a predetermined position. The return springs S1 and S2 may connect the support frame 140 and the support ring 150 to support the support ring 150.

One return spring S1 provides an elastic force to return to its original position by providing an elastic force in a clockwise direction when the support ring 150 is operated in a counterclockwise direction, and the other return spring S2 supports the support ring ( When 150 is operated in the clockwise direction, the elastic force is provided to return to the original position by providing the elastic force in the counterclockwise direction.

On the other hand, the support ring 150 may be provided with a fixed frame 160 to prevent the support ring 150 from being separated to the back so that the support ring 150 can operate stably.

The fixing frame 160 serves to prevent the support ring 150 from escaping to the back across the back of the support ring 150.

The fixed frame 160 is fastened to the support frame 140. In addition, the fixing frame 160 may restrain the rotation range of the support ring 150.

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

At this time, if the rotation range of the wing 153 is limited by the fixing frame 160, it is possible to constantly limit the bidirectional rotation angle of the support ring 150.

In order to restrain the rotation of the support ring 150 more stably, the wing portions 153 may be provided on both sides, and the fixing frame 160 may limit the rotation range of the wing portions on both sides in the same manner.

9 is a view showing a knob ring encoder of the knob assembly according to an embodiment of the present invention, Figure 10 is a view showing a knob encoder of the knob assembly according to an embodiment of the present invention.

Knob assembly according to the present invention is characterized in that the thermal power can be adjusted through the operation of the knob handle, it is possible to display the timer time through the operation of the knob ring.

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

The knob ring encoder E2 meshes with the gear portion G2 of the support ring 150 to detect rotation of the support ring. Knob ring 120 according to the present invention can be rotated in a certain range when an external force is applied in a return type, and returns to its original position when the external force is released.

For example, when the clock is rotated by a certain angle, the timer time is increased. When the clock is rotated by the counterclockwise, the timer time is decreased.

Knob knob 110 is connected to the control 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 manipulated rotation amount (operation angle) from the reference position.

The knob encoder E1 engages with the gear G1 coupled to the adjustment shaft 194 to sense the rotation of the adjustment shaft 194.

In a cooker in which the thermal power is electrically controlled, such as an electric range or an induction range, since the thermal power control unit 190 is made of a variable resistor or the like, the state of the thermal power control unit 190 is sensed 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. 12 is a rear exploded perspective view of some components of a knob ring according to an embodiment of the present invention.

As shown, the knob ring 120 according to an embodiment of the present invention is a knob ring body 124 to form an appearance, a back plate 125 coupled to the back of the knob ring body 124, and the back A support tube 126 coupled to the plate 125 and supporting the adjustment axis.

The back plate 125 includes a support plate 125b that enters the inside of the front panel and protrudes toward the inside of the cooking appliance. The support plate 125b is provided with a support hole 125c for supporting the adjustment shaft.

In addition, 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, a taper tube 126b extending from the flange 126a, and a support lip d extending longer than the taper tube 126b. Equipped.

The tapered pipe 126b has a tapered shape that is narrower in diameter as it moves away from the flange 126a, and a support portion 126c for supporting the adjustment shaft is provided at the front end thereof.

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

In the conventional valve structure in which the control shaft is constrained to a certain position, since the control shaft 194 is changed into a flexible valve that is flowable, a structure capable of stably supporting the control shaft 194 is required.

For this purpose, it is preferable to support the adjusting shaft 194 at least two points in the knob ring.

In addition, the knob ring 120 may support the front end of the gear G1 coupled to the control shaft 194 as well as support the adjustment shaft 194 at two or more points. The gear G1 (FIG. 4) is for transmitting the rotation amount of the adjustment shaft 194 to the knob encoder E1, and may be supported in a form mounted on the support lip 126d.

On the other hand, the present invention is characterized in that the knob ring 120 is provided with a display that can display the thermal power or timer time.

As shown, the display 123 is coupled to the knob ring body 124 through the display housing 122, the outer cap 121 is coupled to the outside. The closing cap 121 is preferably made of a transparent or translucent material so that the information (number) displayed on the display 123 can be visually recognized from the outside.

It is to be understood that the foregoing embodiments are illustrative in all respects and not restrictive, the scope of the invention being indicated by the claims that follow, rather than the foregoing detailed description. And the meaning and scope of the claims to be described later, as well as all changes and modifications derived from the equivalent concept should be construed as being included in the scope of the invention.

E1: Knob Encoder E2: Knob Ring Encoder
S1, S2: Return spring 110: Knob handle
120: knob ring 122: display housing
123: display unit 124: knob ring body
125: back plate 125b: support plate
125c: support hole 126: support tube
126d: support rib 126c: support portion
126b: taper pipe 126a: flange
130: bearing shell 132: disc portion
134: cylindrical portion 140: support frame
150: support ring 153: wing
160: fixed frame 170: joint
172: housing 174: first shaft support
190: thermal power control unit 194: control shaft

Claims (11)

A cooking apparatus comprising a panel, a knob assembly installed on the panel, and a thermal power control unit having an adjustment shaft for adjusting thermal power,
The knob assembly,
A knob handle coupled to the adjustment shaft;
A knob ring disposed around the knob knob and penetrating the panel, the knob ring rotatable independently of the knob knob;
A support frame fixed to the panel and supporting the knob ring to regulate the position of the knob ring relative to the panel; And
And a knob ring manipulation detecting unit supported by the support frame to sense manipulation of the knob ring.
The method of claim 1,
The knob ring has a return type rotary structure that returns to the initial position when the external force is removed.
The method of claim 1,
The knob assembly further includes a support ring coupled to the knob ring,
The support ring is disposed on the back side of the panel,
And the support frame is coupled to the rear surface of the panel to support the knob ring by supporting the support ring.
The method of claim 3, wherein
And a fixing frame coupled to the support frame to prevent separation of the support ring.
The method of claim 3, wherein
And the knob ring manipulation detecting unit detects rotation of the support ring.
The method of claim 1,
The knob ring supports the control shaft at two or more points.
The method of claim 6,
The knob ring
Knob ring body forming the appearance,
A back plate coupled to the back of the knob ring body,
And a support tube provided on the rear plate to support the adjustment shaft.
The method of claim 1,
And a knob manipulation detector for sensing manipulation of the knob knob.
The method of claim 8,
The knob manipulation detecting unit detects the rotation of the control shaft.
The method of claim 1,
And a bearing shell having a disc portion inserted between the knob ring and the panel. delete

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