An oven control knob assembly

Abstract

The application discloses an oven control knob assembly, which comprises an oven panel and a knob, the knob is arranged on the front side of the oven panel, the rear side of the knob is provided with a knob circuit board, an encoder for electrically connecting a controller of the oven is arranged on the knob circuit board, a knob cover is arranged outside the encoder, and the knob is arranged to rotate the encoder by external force. The knob is arranged to slide back and forth relative to the oven panel, a press switch electrically connected with the controller of the oven is arranged at the rear of the knob, and the knob can be moved backward by external force to trigger the press switch. The oven control knob assembly is beneficial to the simple appearance structure of the oven, is beneficial to intuitive and simple and convenient operation, and is beneficial to improving the user experience effect.

Description

Technical Field

[0001] This invention relates to the field of oven technology, and more specifically to an oven control knob assembly. Background Technology

[0002] Currently, ovens are common kitchen appliances used for baking food. Ovens have a control panel with control buttons and knobs. Since various parameters need to be set before using an oven, existing technology uses two or more knobs, along with several function buttons such as power and confirmation buttons to meet the needs of oven control. However, this results in a complex structure and overly complicated operation, leading to a poor user experience. Too many knobs and buttons also make identification difficult, especially for elderly users. Therefore, existing technology needs to be improved. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an oven control knob assembly that is easy to use and helps to improve the user experience.

[0004] The objective of this invention is achieved through the following technical solution.

[0005] The oven control knob assembly disclosed in this invention includes an oven panel and a knob. The knob is located on the front side of the oven panel, and a knob circuit board is located on the rear side of the knob. An encoder for electrically connecting the controller of the oven is provided on the knob circuit board. The knob covers the encoder, and the knob is set to rotate the encoder by external force. The knob is slidably arranged relative to the oven panel, and a push switch electrically connected to the oven controller is provided behind the knob. The push switch can be triggered by the knob being moved backward by external force. The oven panel has a panel fixing bracket on the rear side, the panel fixing bracket has a mounting hole, the edge of the mounting hole has a rearwardly extending folded edge, the rear end of the folded edge has a slot, the oven panel has a through hole, the mounting hole and the through hole are directly opposite and connected, a fixing tray is provided in the mounting hole, the front end of the fixing tray has a flange, the outer side of the fixing tray has a first buckle, the flange is attached to the front side of the oven panel, the first buckle is engaged with the corresponding slot, and the knob circuit board is located in the fixing tray. The fixed basin frame is equipped with a knob circuit board bracket, which is located on the rear side of the knob circuit board. A second buckle and a support are formed on the front side of the knob circuit board bracket. A positioning protrusion is formed at the front end of the support. A second positioning hole and a second buckle hole are formed on the knob circuit board. The rear part of the knob circuit board is attached to the front end face of the support. The positioning protrusion is correspondingly fitted into the second positioning hole, and the second buckle is engaged with the corresponding second buckle hole.

[0006] Preferably, at least two guide posts are formed on the rear side of the knob circuit board bracket, and a first positioning hole is formed at the bottom of the fixed basin frame, wherein the guide posts are adapted to slide and connect with the corresponding first positioning holes.

[0007] Preferably, the push switch is located on the rear side of the knob circuit board, a push rod is formed in the bottom of the fixed basin, the front end of the push rod is abutted against the push switch, the knob is driven by external force to move the knob circuit board backward, and a spring is provided between the knob circuit board bracket and the bottom of the fixed basin to drive the knob to return to its original position.

[0008] Preferably, the rear side of the knob circuit board bracket is provided with a limiting hook for limiting the forward movement of the knob circuit board bracket relative to the fixed basin stand. The limiting hook is located on the rear side of the bottom of the fixed basin stand and can contact and engage with the bottom of the fixed basin stand.

[0009] Preferably, the spring is a conical compression spring.

[0010] Preferably, a limiting post is formed in the bottom of the fixed basin frame for limiting the rearward movement of the knob circuit board bracket relative to the fixed basin frame, and the front end of the limiting post can contact and connect with the rear part of the knob circuit board bracket.

[0011] Preferably, the knob has a positioning protrusion and an axial positioning hook inside its rear, the encoder has a positioning groove, the positioning protrusion is adapted to be disposed outside the encoder, the front end of the encoder is against the inner wall of the knob, the axial positioning hook is engaged with the corresponding positioning groove, an inner protrusion is formed on the inner wall of the positioning protrusion, a circumferential positioning groove is formed on the outer wall of the encoder, and the inner protrusion is adapted to be disposed in the corresponding circumferential positioning groove.

[0012] Compared with the prior art, the beneficial effects of this invention are as follows: By setting the knob on the front side of the oven panel, and a knob circuit board on the rear side of the knob, an encoder for electrically connecting the oven controller is provided on the knob circuit board, and the knob is covered outside the encoder. The knob is set to rotate the encoder by external force, and the knob is set to slide back and forth relative to the oven panel. A push switch electrically connected to the oven controller is provided behind the knob. The knob can be triggered by moving backward by external force, which is conducive to simple and convenient operation and improves the user experience. Attached Figure Description

[0013] Figure 1 This is a front perspective view of the oven control knob assembly of the present invention.

[0014] Figure 2 This is a cross-sectional view of the oven control knob assembly of the present invention.

[0015] Figure 3 This is an exploded view of the oven control knob assembly of the present invention.

[0016] Figure 4 This is a partial rear-view three-dimensional structural diagram of the panel fixing bracket of the present invention.

[0017] Figure 5 This is a front side perspective view of the fixed basin stand of the present invention.

[0018] Figure 6 This is a three-dimensional structural diagram of the back of the oven control knob assembly of the present invention.

[0019] Figure 7 This is a front-side perspective view of the knob circuit board bracket of the present invention.

[0020] Figure 8 This is a three-dimensional structural diagram of the back side of the knob circuit board bracket of the present invention.

[0021] Figure 9 This is a front-side perspective view of the knob circuit board of the present invention.

[0022] Figure 10 This is a three-dimensional structural diagram of the back side of the knob circuit board of the present invention.

[0023] Figure 11 This is a front-side perspective view of the knob circuit board and knob circuit board support assembly of the present invention.

[0024] Figure 12 This is a three-dimensional structural diagram of the back side of the knob of the present invention.

[0025] Figure 13This is a front-side perspective view of the oven control knob assembly of the present invention with the knob removed.

[0026] Figure 14 For the corresponding Figure 13 A schematic diagram of its breakdown.

[0027] Labeling descriptions: Oven panel 1, Through hole 101, Panel fixing bracket 2, Folded edge 201, Groove 2011, Mounting hole 202, Fixing tray 3, Flange 31, First buckle 301, Limiting post 302, Pressing rod 303, First buckle hole 304, First positioning hole 305, Spring 4, Knob circuit board bracket 5, Limiting hook 501, Guide post 502, Second buckle 503, Support column 504, Positioning protrusion 5041, Knob circuit board 6, Second positioning hole 601, Second buckle hole 602, Encoder 603, Positioning groove 6031, Circumferential positioning groove 6032, Pressing switch 604, Knob 7, Positioning protrusion 71, Notch 7101, Inner protrusion 7102, Axial positioning hook 701. Detailed Implementation

[0028] The present invention will now be further described with reference to the accompanying drawings.

[0029] The oven control knob assembly of the present invention, such as Figures 1 to 3 As shown, the oven includes an oven panel 1 and a knob 7. The knob 7 is located on the front side of the oven panel 1, and a knob circuit board 6 is located on the rear side of the knob 7. The knob circuit board 6 has an encoder 603 for electrically connecting to the oven controller. The knob 7 covers the encoder 603. Specifically, the encoder 603 can be an incremental encoder. The encoder 603 is electrically connected to the knob circuit board 6, and the knob circuit board 6 is electrically connected to the oven controller. The controller is electrically connected to a display screen, which can be set on the oven panel 1. The knob 7 drives the encoder 603 to rotate by external force. Specifically, the knob 7 and the encoder 603 are coaxially arranged, and the rotatable parts of the knob 7 and the encoder 603 are relatively fixed in the circumferential direction around the rotation axis of the knob 7. Therefore, turning the knob 7 by hand can drive the rotatable part of the encoder 603 to rotate synchronously.

[0030] When the user rotates knob 7, knob 7 drives encoder 603 to rotate, and encoder 603 outputs a corresponding signal to the controller. Since the signal transmitted from encoder 603 to controller is a pulse signal, compared with the potentiometer or mechanical knob of the prior art, the combination of encoder 603 and controller can realize richer and more flexible control operations. For example, it can adjust the parameters of the oven (such as baking temperature and baking time). In addition, rotating knob 7 can also switch between various parameters. Specifically, the display screen shows the names or icons of several parameters. When knob 7 is rotated, the parameter names or icons will be highlighted accordingly. Since multiple parameters of the oven can be adjusted by setting only one knob 7, it is beneficial to the simple appearance structure of the oven, the intuitive and convenient operation, the improved user experience, and the ease of use for elderly users.

[0031] Furthermore, such as Figures 1 to 3 As shown, the knob 7 is slidably positioned relative to the oven panel 1. Behind the knob 7 is a push-button switch 604 electrically connected to the oven controller. The push-button switch 604 can be a surface-mount tactile switch. The knob 7 can be moved backward by external force to trigger the push-button switch 604. For example, in the front-back direction, the knob 7 can be fixed relative to the body of the push-button switch 604. Pressing the knob 7 backward will cause the body of the push-button switch 604 to move backward. When the button of the push-button switch 604 touches a fixed object, the push-button switch 604 is triggered. Alternatively, in the front-back direction, the body of the push-button switch 604 can be fixed, while the knob 7 can move back and forth. The knob 7 can directly or indirectly contact the button of the push-button switch 604, thereby triggering the push-button switch 604. Since the axial movement of the knob 7 triggering the push-button switch 604 can be achieved through various specific structures, they are not listed here.

[0032] The operation of the knob 7 for controlling the oven is illustrated below: A short press of knob 7 triggers the push-button switch 604, turning on the oven and displaying information on the screen. Rotating knob 7 switches between highlighted options on the screen. A short press of knob 7 confirms entry into an option, such as the "temperature setting option." Rotating knob 7 then adjusts the temperature. After adjustment, a short press of knob 7 exits the option. Rotating knob 7 highlights "Start" on the screen. A short press of knob 7 confirms the start of baking. During baking, a short press of knob 7 pauses baking; a short press resumes baking. A long press of knob 7, or while operating options on the screen, turns off the oven. As can be seen, the structure of knob 7, which triggers the push-button switch 604 by moving it backward, eliminates the need for a separate "confirm" button on the oven panel 1, simplifying operation and contributing to a cleaner oven appearance.

[0033] Furthermore, such as Figures 1 to 3 As shown, a panel mounting bracket 2 is provided on the rear side of the oven panel 1. The panel mounting bracket 2 is a sheet metal part, and the oven panel 1 can be made of glass. The oven panel 1 is fixed against the front of the panel mounting bracket 2, and the panel mounting bracket 2 is fixed to the oven body. The panel mounting bracket 2 has mounting holes 202. Figure 4 As shown, a rearwardly extending flange 201 is formed at the edge of the mounting hole 202. The flange 201 is evenly distributed circumferentially, and a groove 2011 is formed at the rear end of the flange 201. Figure 3 As shown, the oven panel 1 has a through hole 101, as... Figure 2 and Figure 3 As shown, the mounting hole 202 is directly opposite and connected to the through hole 101. A fixed basin holder 3 is provided inside the mounting hole 202. Figure 5 As shown, a flange 31 is formed at the front end of the fixed basin holder 3, and a first buckle 301 is formed on the outer side of the fixed basin holder 3. The first buckle 301 is in the shape of an outward hook, as shown. Figure 2 and Figure 13 As shown, flange 31 is attached to the front side of oven panel 1, as... Figure 6 As shown, the first buckle 301 engages with the corresponding slot 2011, thus the slot 2011 prevents the fixed tray 3 from moving forward, and the oven panel 1 prevents the fixed tray 3 from moving backward. Since the first buckle 301 is located within the slot 2011, the slot 2011 prevents the fixed tray 3 from rotating; Figure 2 As shown, the knob circuit board 6 is housed within the fixed basin frame 3. By providing a space for the knob circuit board 6 through the fixed basin frame 3, the fixed basin frame 3 protects the knob circuit board 6. The installation structure of the fixed basin frame 3 is simple and easy to assemble.

[0034] Furthermore, such as Figure 2 As shown, the fixed basin holder 3 is equipped with a knob circuit board bracket 5, which is located on the rear side of the knob circuit board 6. Figure 7 As shown, a second latch 503 and a support column 504 are formed on the front side of the knob circuit board bracket 5. The second latch 503 is designed to be outwardly hook-shaped and is evenly distributed circumferentially. A positioning protrusion 5041 is formed at the front end of the support column 504. Figure 9 and Figure 10 As shown, the knob circuit board 6 has a second positioning hole 601 and a second snap hole 602. The second snap hole 602 is a rectangular hole, and the second positioning hole 601 is a round hole. Figure 2 and Figure 11 As shown, the rear part of the knob circuit board 6 abuts against the front end face of the support column 504. Specifically, a step is formed at the connection between the front end of the support column 504 and the rear end of the positioning protrusion 5041. The rear part of the knob circuit board 6 abuts against the aforementioned step. The positioning protrusion 5041 is correspondingly inserted into the second positioning hole 601. The second latch 503 engages with the corresponding second latch hole 602. Specifically, the second latch 503 hooks onto the edge of the second latch hole 602. Thus, the aforementioned step prevents the knob circuit board 6 from moving backward relative to the knob circuit board bracket 5. 503 blocks the knob circuit board 6 from moving forward relative to the knob circuit board bracket 5. In the circumferential direction, the knob circuit board 6 and the knob circuit board bracket 5 are positioned relative to each other by the positioning protrusion 5041. Through the support of the support column 504, a space is formed behind the knob circuit board 6, so that components can be installed behind the knob circuit board 6, which is also conducive to heat dissipation of components. The above-mentioned assembly structure of the knob circuit board 6 and the knob circuit board bracket 5 is simple, and it also makes the knob circuit board 6 and the knob circuit board bracket 5 reliably fixed relative to each other, which is conducive to easy assembly.

[0035] Furthermore, such as Figure 8 As shown, at least two guide posts 502 are formed on the rear side of the knob circuit board bracket 5. Specifically, there are three guide posts 502, which are evenly distributed circumferentially. Figure 5 As shown, a first positioning hole 305 is formed at the bottom of the fixed basin holder 3. The first positioning hole 305 is a round hole, as shown in the figure. Figure 6 As shown, the guide post 502 is adapted to slide and connect with the corresponding first positioning hole 305. That is, the guide post 502 passes through the corresponding first positioning hole 305, so the simple structure allows the knob circuit board bracket 5 to move back and forth in parallel.

[0036] Furthermore, such as Figure 2 and Figure 10 As shown, the push switch 604 is located on the rear side of the knob circuit board 6, as... Figure 5As shown, a pressing rod 303 is formed inside the bottom of the fixed basin holder 3. The pressing rod 303 is located at the center of the fixed basin holder 3. Figure 2 As shown, the front end of the pressing lever 303 abuts against the pressing switch 604. The knob 7 is moved backward by external force to drive the knob circuit board 6. A spring 4 is provided between the knob circuit board bracket 5 and the bottom of the fixed tray 3 to drive the knob 7 to return to its forward position. Therefore, when the knob 7 is pressed backward by hand, the knob 7 drives the knob circuit board 6 to move backward, and the pressing switch 604 moves backward. Correspondingly, the pressing lever 303 presses against the button of the pressing switch 604, thereby triggering the pressing switch 604. As described above, the knob circuit board bracket 5 and the knob circuit board 6 are positioned relative to each other in the front-to-back direction. Therefore, when the knob circuit board 6 moves backward, the knob circuit board bracket 5 also moves backward simultaneously. The first positioning hole 305 guides the front-to-back movement of the push switch 604, ensuring stable operation of the push switch 604. When the knob circuit board bracket 5 moves backward, it further pushes the spring 4, causing the spring 4 to further compress and deform elastically. When the external force pressing the knob 7 is removed, the elastic restoring force of the spring 4 pushes the knob circuit board bracket 5 forward, causing the knob circuit board 6 and the push switch 604 to move forward. The push switch 604 then moves away from the pressing rod 303 and resets. By setting the spring 4, the knob 7 can move forward and reset stably and effectively, avoiding the situation where the push switch 604 cannot reset. The structure of the push switch 604 located on the rear side of the knob circuit board 6 is reasonable and makes full and reasonable use of the internal space of the fixed tray 3.

[0037] Furthermore, such as Figure 8 As shown, the rear side of the knob circuit board bracket 5 is provided with a limiting hook 501 for limiting the forward movement of the knob circuit board bracket 5 relative to the fixed basin 3, such as... Figure 2 and Figure 6 As shown, the limiting hook 501 is located on the rear side of the bottom of the fixed basin stand 3. The limiting hook 501 can contact and engage with the bottom of the fixed basin stand 3. Specifically, a strip-shaped structure supporting the limiting hook 501 is formed on the rear side of the knob circuit board bracket 5. Figure 5 As shown, a first latching hole 304 is formed at the bottom of the fixed basin stand 3. The first latching hole 304 is a rectangular through hole. The aforementioned strip-shaped structure passes through the corresponding first latching hole 304, allowing the limiting hook 501 to be located at the rear side of the bottom of the fixed basin stand 3. Therefore, when the user presses the knob 7, the aforementioned strip-shaped structure slides backward within the first latching hole 304, causing the limiting hook 501 to move backward away from the bottom of the fixed basin stand 3. When the user releases the knob 7, the spring 4 drives the knob circuit board bracket 5 to move forward and reset. When the limiting hook 501 contacts and engages with the bottom of the fixed basin stand 3, the knob circuit board bracket 5 can no longer move forward. By setting the structure of the limiting hook 501 combined with the spring 4, the reliability of the knob 7 is improved; more specifically, in Figure 2 In the state shown (button 7 is not pressed), spring 4 is in an elastic compression state, so that the limit hook 501 hooks the edge of the first buckle hole 304. Through the pushing force of spring 4 and the blocking effect of the edge of the first buckle hole 304, the knob 7 is in an axially stable state, which prevents the user from feeling that the knob 7 is loose when lightly touching it with their hand, and also prevents accidental operation, which helps to improve the user experience.

[0038] Furthermore, such as Figure 14 As shown, spring 4 is designed as a conical compression spring (also known as a tower spring), specifically with the larger end of spring 4 facing forward. By designing spring 4 as a conical compression spring, the elastic expansion and contraction process of spring 4 becomes more stable and less prone to wobbling. Because the adjacent spring wires of spring 4 are staggered during elastic compression, the spring wires of spring 4 do not stack, thus maximizing the elastic compression of spring 4 to obtain a greater elastic restoring force for the reset of knob 7. This also helps to keep spring 4 in a stable position. Figure 2 The space occupied is small when the state shown (knob 7 is not pressed).

[0039] Furthermore, such as Figure 5 As shown, a limiting post 302 is formed inside the bottom of the fixed basin holder 3 to limit the rearward movement of the knob circuit board bracket 5 relative to the fixed basin holder 3. The front end of the limiting post 302 can contact and connect with the rear part of the knob circuit board bracket 5, as shown. Figure 2 As shown, when the knob 7 is pressed by hand, the knob circuit board bracket 5 moves backward. When the rear part of the knob circuit board bracket 5 contacts the front end of the limiting post 302, the knob circuit board 6 and the push switch 604 will be blocked and limited by the limiting post 302. The limiting post 302 restricts the stroke of the knob circuit board bracket 5 to avoid damage to the push switch 604 when the knob 7 is pressed with excessive force.

[0040] Furthermore, such as Figure 12 As shown, the rear interior of the knob 7 has a positioning protrusion 71 and an axial positioning hook 701. Specifically, the wall of the positioning protrusion 71 has a notch 7101, and the axial positioning hook 701 is formed in the corresponding notch 7101, as shown. Figure 11 As shown, the encoder 603 has a positioning groove 6031, as Figure 2 As shown, the positioning protrusion 71 is adapted to be mounted on the outside of the encoder 603, the front end of the encoder 603 abuts against the inner wall of the knob 7, and the axial positioning hook 701 engages with the corresponding positioning groove 6031, as shown. Figure 12 As shown, an inner protrusion 7102 is formed on the inner wall of the positioning protrusion 71, such as... Figure 11As shown, a circumferential positioning groove 6032 is formed on the outer wall of the encoder 603, and an inner protrusion 7102 is adapted to fit within the corresponding circumferential positioning groove 6032. Thus, the rotatable part of the encoder 603 and the knob 7 are positioned relative to each other in the axial and circumferential directions. When the knob 7 is pressed, the inner wall of the knob 7 pushes the encoder 603 backward directly, and the encoder 603 drives the knob circuit board 6 and the knob circuit board bracket 5 to move backward. When the knob 7 is rotated, the knob 7 can drive the rotatable part of the encoder 603 to rotate through the inner protrusion 7102. The above-mentioned mounting and connection structure between the encoder 603 and the knob 7 is reliable, avoiding loosening of the knob 7 and promoting stable operation of the knob 7.

[0041] In summary, the oven control knob assembly of the present invention has an ingenious structural design, and the assembly process is achieved through snap-fit, which not only facilitates simple and quick assembly, but also ensures that the pressing action of the knob 7 is stable and reliable. The knob assembly realizes multiple uses, including parameter adjustment, parameter confirmation, and power on / off operation, which is beneficial to the user in operating the oven.

Claims

1. An oven control knob assembly, characterized in that: The oven includes an oven panel (1) and a knob (7). The knob (7) is located on the front side of the oven panel (1). A knob circuit board (6) is located on the rear side of the knob (7). An encoder (603) for electrically connecting the oven controller is provided on the knob circuit board (6). The knob (7) covers the encoder (603). The knob (7) drives the encoder (603) to rotate by external force. The knob (7) is slidably positioned relative to the oven panel (1). A push switch (604) electrically connected to the oven controller is located behind the knob (7). The knob (7) can be triggered by moving backward by external force. The oven panel (1) has a panel fixing bracket (2) on its rear side. The panel fixing bracket (2) has a mounting hole (202). The edge of the mounting hole (202) has a rearwardly extending flange (201). The rear end of the flange (201) has a slot (2011). The oven panel (1) has a through hole (101). The mounting hole (202) and the through hole (101) are directly connected. The mounting hole (202) has a fixed tray (3). The front end of the fixed tray (3) has a flange (31). The outer side of the fixed tray (3) has a first buckle (301). The flange (31) is attached to the front side of the oven panel (1). The first buckle (301) is fastened to the corresponding slot (2011). The knob circuit board (6) is located in the fixed tray (3). The fixed basin stand (3) is provided with a knob circuit board bracket (5). The knob circuit board bracket (5) is located on the rear side of the knob circuit board (6). The front side of the knob circuit board bracket (5) has a second buckle (503) and a support column (504). The front end of the support column (504) has a positioning protrusion (5041). The knob circuit board (6) has a second positioning hole (601) and a second buckle hole (602). The rear part of the knob circuit board (6) is attached to the front end face of the support column (504). The positioning protrusion (5041) is correspondingly fitted into the second positioning hole (601). The second buckle (503) is fastened to the corresponding second buckle hole (602).

2. The oven control knob assembly according to claim 1, characterized in that: At least two guide posts (502) are formed on the rear side of the knob circuit board bracket (5), and a first positioning hole (305) is formed at the bottom of the fixed basin bracket (3). The guide posts (502) are adapted to slide and connect with the corresponding first positioning hole (305).

3. The oven control knob assembly according to claim 2, characterized in that: The push switch (604) is located on the rear side of the knob circuit board (6). A push rod (303) is formed in the bottom of the fixed basin (3). The front end of the push rod (303) is attached to the push switch (604). The knob (7) is driven by external force to move the knob circuit board (6) backward. A spring (4) is provided between the knob circuit board bracket (5) and the bottom of the fixed basin (3) to drive the knob (7) to return to its original position.

4. The oven control knob assembly according to claim 3, characterized in that: The knob circuit board bracket (5) is provided with a limiting hook (501) on the rear side for limiting the forward movement of the knob circuit board bracket (5) relative to the fixed basin frame (3). The limiting hook (501) is located on the rear side of the bottom of the fixed basin frame (3), and the limiting hook (501) can contact and fasten with the bottom of the fixed basin frame (3).

5. The oven control knob assembly according to claim 4, characterized in that: The spring (4) is a conical compression spring.

6. The oven control knob assembly according to claim 4, characterized in that: The bottom of the fixed basin stand (3) has a limiting post (302) for limiting the rearward movement of the knob circuit board bracket (5) relative to the fixed basin stand (3). The front end of the limiting post (302) can contact and connect with the rear part of the knob circuit board bracket (5).

7. The oven control knob assembly according to claim 3, characterized in that: The knob (7) has a positioning protrusion (71) and an axial positioning hook (701) formed inside the rear. The encoder (603) has a positioning groove (6031). The positioning protrusion (71) is adapted to be installed outside the encoder (603). The front end of the encoder (603) is attached to the inner wall of the knob (7). The axial positioning hook (701) is engaged with the corresponding positioning groove (6031). An inner protrusion (7102) is formed on the inner wall of the positioning protrusion (71). A circumferential positioning groove (6032) is formed on the outer wall of the encoder (603). The inner protrusion (7102) is adapted to be installed in the corresponding circumferential positioning groove (6032).

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