An oven knob operating panel

Abstract

The utility model relates to a kind of oven knob operating panel, including PCB board, shell and knob ring assembly, PCB board is connected in the back of shell, PCB board is welded with photoelectric encoder to form passage, the front of shell is equipped with annular groove, annular groove is equipped with knob buckle, knob buckle includes the bottom plate of connecting annular groove groove bottom, and the annular plate that is in line with the lateral wall of annular groove, the end of annular plate is equipped with the elastic member that is protruding to annular groove, knob ring assembly includes different color knob ring, knob ring is equipped with the clamping groove that the elastic member is matched along inner circumferential surface, the back of knob ring is equipped with rack ring, the protruding tooth of rack ring is equidistantly arranged along its circumferential direction, the detection port of photoelectric encoder is aligned with protruding tooth;Realized that elastic member enters clamping groove makes knob ring can circulate in annular groove, photoelectric encoder detects knob ring rotation to control oven operation, can directly insert and pull knob ring from annular groove, it is convenient to open panel maintenance or individualized adjustment knob ring appearance.

Description

Technical Field

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

[0002] An oven is a sealed appliance used for baking food or drying products. Oven control panels typically have knobs; turning these knobs generates electrical signals to adjust the oven's operating settings. However, users may accidentally drip water onto the knobs, causing them to seep inside and damage the knobs. Currently, oven control panel knobs are not easily removable; often, the entire control panel needs to be disassembled for repair, which is time-consuming and laborious. Furthermore, the knob designs are often quite limited, failing to meet users' personalized aesthetic preferences. Therefore, designing an oven control panel with easily removable knobs for repair or replacement has become an urgent technical challenge. Summary of the Invention

[0003] To solve the above problems, this utility model provides an oven knob control panel.

[0004] The technical solution of this utility model is an oven knob control panel, including a PCB board, a shell, and a knob ring assembly. The PCB board is connected to the back of the shell, and a photoelectric encoder is soldered onto the PCB board to form a passage. The front of the shell has an annular groove, and a knob buckle is provided in the annular groove. The knob buckle includes a base plate connected to the bottom of the annular groove and an annular plate that fits against the side wall of the annular groove. The end of the annular plate has an elastic element that protrudes into the annular groove. The knob ring assembly includes knob rings of different colors. Any knob ring is concentrically arranged in the annular groove. The knob ring has a locking groove matching the elastic element along its inner circumference. The back of the knob ring has a rack ring, and the protruding teeth of the rack ring are arranged at equal intervals along its own circumference. The detection port of the photoelectric encoder is aligned with the protruding teeth.

[0005] With the above structure, the control panel is screwed onto the oven, and the PCB board is electrically connected to the oven to form a circuit. The center of any knob ring is located within an annular groove, allowing the knob ring to rotate around the center of the groove. The elastic element on the knob clip protrudes into the annular groove and engages with a matching snap-fit ​​groove, thus securing the knob ring within the annular groove. A photoelectric encoder is soldered onto the PCB board to form a circuit. A rack ring is located on the back of the knob ring. The photoelectric encoder's detection port is aligned with the protruding teeth of the rack ring for detection. When the knob ring rotates, because the protruding teeth are evenly spaced along the circumference of the rack ring, the teeth alternately align with the photoelectric encoder. The photoelectric encoder detects changes in light reflection and absorption, identifying the knob ring's rotation. An electrical signal is then sent to the oven through the circuit on the PCB board to control the oven's operation at different speeds. The snap-fit ​​groove is located along the inner circumference of the knob ring. When the knob ring rotates, the elastic element slides synchronously along the locking groove without interfering with the rotation of the knob ring. For maintenance, simply pinch the knob ring from both sides and pull it out of the annular groove. The locking groove will compress the elastic element, causing it to bend and fall out of the annular groove, thus removing the knob ring from the outer casing and facilitating the location of the damaged part for repair. The knob ring assembly includes knob rings of different colors, allowing users to select different colored knob rings to be reinstalled in the annular groove, facilitating panel customization and meeting individual needs. When the knob ring is in the annular groove, the elastic element enters the locking groove, allowing the knob ring to rotate within the groove. The photoelectric encoder detects the rotation of the rack ring on the back of the knob ring to control the oven's operation. Utilizing the elastic element's self-deformable and restorative properties, the knob ring can be directly inserted and removed from the annular groove, facilitating panel opening for maintenance or personalized adjustment of the knob ring's appearance.

[0006] As a further improvement of this utility model, a panel and a button are connected sequentially to the end of the outer shell. A touch spring is connected to the back of the panel. The touch spring is soldered to the induction plate of the PCB board to form a passage. The button is electrically connected to the PCB board. A circular window with the same center is connected to the inner circumferential surface of the annular groove. A display screen is soldered to the PCB board to form a passage. The front of the display screen is attached to the bottom surface of the circular window.

[0007] With the above structure, a panel and buttons are also provided on the outer shell. The touch spring on the back of the panel is connected to the sensor plate on the PCB board. When the panel is touched, the touch spring transmits pressure to generate an electrical signal on the sensor plate, or when the button is pressed, an electrical signal is generated. The electrical signal is sent to the oven through the path on the PCB board to control the oven's operation. This provides a variety of different operating modes and avoids the panel becoming inoperable due to damage to the knob ring. A display screen is soldered onto the PCB board to form a path. The display screen is attached to the bottom surface of the circular window located in the center of the annular groove. The display screen can show the oven's current operating status based on the electrical signals generated by the rotation of the knob ring, touching the panel, and pressing the button.

[0008] As a further improvement of this utility model, a screen bracket is fixed on the PCB board. The screen bracket is provided with a positioning plate that fits the side of the display screen and a support plate that fits the back of the display screen.

[0009] With the above structure, a screen bracket is fixed on the PCB board. The screen bracket fits the display screen from the side and back, and the front of the display screen fits the bottom of the circular window, thus fixing the display screen in all directions and preventing the display screen from sliding off the PCB board.

[0010] As a further improvement of this utility model, the knob ring includes a cover knob ring, a rack ring, and a seat knob ring arranged concentrically. The cover knob ring is connected to the front of the rack ring and the seat knob ring. The seat knob ring is made of a light-transmitting material. The front of the seat knob ring is provided with a rack groove that matches the shape and size of the rack ring. The rack ring is set in the rack groove. A detection gap is provided between the protruding teeth of the rack ring and the side wall of the rack groove. A snap-fit ​​groove is provided on the inner circumferential surface of the seat knob ring.

[0011] With the above structure, a detection gap is provided between the convex teeth of the rack ring and the side wall of the rack groove. The rotation of the knob ring allows different detection gaps to be detected by the photoelectric encoder, increasing the number of detection points that can trigger the photoelectric encoder and making the oven gear recognition more accurate. The rack ring is set in the rack groove, and the rack groove blocks the outside of the convex teeth of the rack ring to prevent the convex teeth from breaking. The knob ring is made of a light-transmitting material, so it will not block the light reflected by the rack ring.

[0012] As a further improvement of this utility model, the bottom of the annular groove is provided with a vertical detection through hole, the top of the detection through hole corresponds to the position of the detection interval, the position of the photoelectric encoder is aligned with the bottom of the detection through hole, and the base plate is provided with a notch for offset from the detection through hole.

[0013] With the above structure, the top of the detection through hole corresponds to the position of the detection interval, and the position of the photoelectric encoder is aligned with the bottom of the detection through hole. This allows the detection port of the photoelectric encoder to pass upward through the detection through hole and align with the detection interval, preventing other light from affecting the photoelectric encoder from the side.

[0014] As a further improvement of this utility model, the rack ring is a ferromagnetic metal ring with protruding teeth arranged at intervals along the circumference of the rack ring. The outer shell is connected to a magnet located at the bottom of the annular groove, and the position of the magnet corresponds to the protruding teeth of the rack ring.

[0015] With the above structure, the position of the magnet corresponds to the convex teeth of the rack ring. When the convex teeth are aligned with the magnet, the ferromagnetic convex teeth are attracted by the magnetic force of the magnet. When the convex teeth are aligned with the magnet at the interval between them, the magnetic force on the convex teeth is weakened, which generates a damping feeling when rotating the knob ring. This makes it easier to slow down the rotation speed of the knob ring and helps the operator to accurately rotate the knob ring to the desired gear.

[0016] As a further improvement of this utility model, a push plate is provided on the outer edge of the front of the cover knob ring. The push plate extends outside the annular groove and tilts upwards to the side away from the annular groove.

[0017] With the above structure, a push plate is provided on the outer edge of the front of the knob ring. The push plate extends outside the annular groove and tilts up to the side away from the annular groove, forming a space between the push plate and the annular groove. This makes it easy for fingertips to reach to the back of the push plate and exert force to push the knob ring away from the annular groove.

[0018] As a further improvement of this utility model, the elastic element is a plurality of arc-shaped elastic rods, which are arranged at intervals along the circumference of the annular plate, and all the elastic rods protrude into the annular groove.

[0019] With the above structure, several elastic rods with an arc shape are arranged at intervals along the circumference of the annular plate, so that the elastic rods protrude into the annular groove and insert into the snap-fit ​​groove, forming multi-point support, which makes the snap-fit ​​connection of the knob ring more stable and prevents the knob ring from falling off the annular groove due to accidental contact. Attached Figure Description

[0020] Figure 1 The diagram shown is a schematic diagram of the assembled structure of this utility model.

[0021] Figure 2 The diagram shown is a structural schematic of the present invention in its disassembled state.

[0022] Figure 3 The diagram shows a cross-sectional view of the annular groove and the knob ring.

[0023] Figure 4 The diagram shown is a schematic of the annular groove structure.

[0024] Figure 5 The diagram shown is a schematic of the exploded structure of the knob ring.

[0025] Figure 6 The diagram shows the structure of the elastic element and the detection through hole in part A.

[0026] 1-PCB board, 2-outer shell, 3-knob ring, 4-annular groove, 5-knob buckle, 6-elastic element, 7-snap slot, 8-rack ring, 9-panel, 10-button, 11-circular window, 12-display screen, 13-screen bracket, 14-cover knob ring, 15-seat knob ring, 16-rack groove, 17-detection through hole, 18-magnet, 19-push plate. Detailed Implementation

[0027] like Figures 1-6The oven knob control panel 9 shown includes a PCB board 1, a housing 2, and a knob ring assembly. The PCB board 1 is connected to the back of the housing 2. A photoelectric encoder is soldered onto the PCB board 1 to form a passage. The front of the housing 2 has an annular groove 4. A knob buckle 5 is provided in the annular groove 4. The knob buckle 5 includes a base plate connected to the bottom of the annular groove 4 and an annular plate that fits against the side wall of the annular groove 4. The end of the annular plate has an elastic element 6 that protrudes into the annular groove 4. The knob ring assembly includes knob rings 3 of different colors. Any knob ring 3 is concentrically arranged in the annular groove 4. The knob ring 3 has a snap-fit ​​groove 7 along its inner circumference that matches the elastic element 6. The back of the knob ring 3 has a rack ring 8. The protruding teeth of the rack ring 8 are arranged at equal intervals along its own circumference. The detection port of the photoelectric encoder is aligned with the protruding teeth.

[0028] By screwing the control panel 9 onto the oven, the PCB board 1 is electrically connected to the oven, forming a passage. The center of any knob ring 3 is located within the annular groove 4, allowing the knob ring 3 to rotate around its center. The elastic element 6 on the knob clip 5 protrudes into the annular groove 4 and engages with the matching snap-fit ​​groove 7, securing the knob ring 3 within the annular groove 4. A photoelectric encoder is soldered onto the PCB board 1, forming a passage. A rack ring 8 is located on the back of the knob ring 3. The photoelectric encoder's detection port aligns with the protruding teeth of the rack ring 8 for detection. When the knob ring 3 rotates, the protruding teeth are evenly spaced along the circumference of the rack ring 8, and the teeth alternately align with the photoelectric encoder. The photoelectric encoder detects changes in light reflection and absorption, identifying the rotation of the knob ring 3. An electrical signal is then sent to the oven through the passage on the PCB board 1, controlling the oven to operate at different speeds. The snap-fit ​​groove 7 is positioned along the inner circumference of the knob ring 3, allowing the knob ring 3 to rotate. When the knob ring 3 is in use, the elastic element 6 can slide synchronously along the locking groove 7 without interfering with the rotation of the knob ring 3. When maintenance is required, simply pinch the knob ring 3 from both sides and pull it out of the annular groove 4. The locking groove 7 will squeeze the elastic element 6 to deform. After bending and compressing, the elastic element 6 will fall out of the annular groove 4, completing the removal of the knob ring 3 from the outer shell 2, making it easier to find the damaged part for maintenance. By including knob rings 3 of different colors in the knob ring assembly, different colored knob rings 3 can be selected and installed back into the annular groove 4, making it easy for users to adjust the appearance of the panel 9 and meet personalized needs. When the knob ring 3 is in the annular groove 4, the elastic element 6 enters the locking groove 7 so that the knob ring 3 can rotate in the annular groove 4. The photoelectric encoder detects the rotation of the rack ring 8 on the back of the knob ring 3 to control the operation of the oven. Utilizing the elastic element 6's property of being deformable and recoverable by its own elasticity, the knob ring 3 can be directly inserted and removed from the annular groove 4, making it easy to open the panel 9 for maintenance or personalized adjustment of the appearance of the knob ring 3.

[0029] The outer casing 2 is connected to a panel 9 and buttons 10 in sequence at its end. A touch spring is connected to the back of the panel 9. The touch spring is soldered to the sensing disk of the PCB board 1 to form a passage. The buttons 10 are electrically connected to the PCB board 1. A circular window 11 with the same center is connected to the inner circumferential surface of the annular groove 4. A display screen 12 is soldered to the PCB board 1 to form a passage. The front of the display screen 12 is attached to the bottom surface of the circular window 11.

[0030] The outer casing 2 is also equipped with a panel 9 and buttons 10. The touch spring on the back of the panel 9 is connected to the sensor plate of the PCB board 1. When the panel 9 is touched, the touch spring transmits pressure to make the sensor plate generate an electrical signal. Or when the button is pressed, the button 10 generates an electrical signal and sends an electrical signal to the oven through the path of the PCB board 1 to control the oven operation. This allows for multiple different operation modes and avoids the panel 9 becoming inoperable due to damage to the knob ring 3. A display screen 12 is soldered onto the PCB board 1 to form a path. The display screen 12 is attached to the bottom surface of the circular window 11 located in the center of the annular groove 4. The display screen 12 can display the current operating status of the oven based on the electrical signals generated by the rotation of the knob ring 3, touching the panel 9, and pressing the button 10.

[0031] A screen bracket 13 is fixed on the PCB board 1. The screen bracket 13 is provided with a positioning plate that fits the side of the display screen 12 and a support plate that fits the back of the display screen 12.

[0032] A screen bracket 13 is fixed on the PCB board 1. The screen bracket 13 fits the display screen 12 from the side and back. The front of the display screen 12 fits the bottom of the circular window 11, thus fixing the display screen 12 in all directions and preventing the display screen 12 from sliding off the PCB board 1.

[0033] The knob ring 3 includes a cover knob ring 14, a rack ring 8, and a seat knob ring 15 arranged concentrically. The cover knob ring 14 is connected to the front of the rack ring 8 and the seat knob ring 15. The seat knob ring 15 is made of a light-transmitting material. The front of the seat knob ring 15 is provided with a rack groove 16 that matches the shape and size of the rack ring 8. The rack ring 8 is set in the rack groove 16. A detection gap is provided between the protruding teeth of the rack ring 8 and the side wall of the rack groove 16. The snap-fit ​​groove 7 is provided on the inner circumferential surface of the seat knob ring 15.

[0034] A detection gap is provided between the convex teeth of the rack ring 8 and the side wall of the rack groove 16. The rotation of the knob ring 3 allows different detection gaps to be detected by the photoelectric encoder, increasing the detection points that can trigger the photoelectric encoder and making the oven gear recognition more accurate. The rack ring 8 is set in the rack groove 16, and the rack groove 16 blocks the outside of the convex teeth of the rack ring 8 to prevent the convex teeth from breaking. The knob ring 15 is made of a light-transmitting material, so it will not block the light reflected by the rack ring 8.

[0035] The bottom of the annular groove 4 is provided with a vertical detection through hole 17. The top of the detection through hole 17 corresponds to the position of the detection interval. The position of the photoelectric encoder is aligned with the bottom of the detection through hole 17. The base plate is provided with a notch to be offset from the detection through hole 17.

[0036] By aligning the top of the detection through-hole 17 with the position of the detection interval, the position of the photoelectric encoder is aligned with the bottom of the detection through-hole 17, allowing the detection port of the photoelectric encoder to pass upward through the detection through-hole 17 and align with the detection interval, thus preventing other light from affecting the photoelectric encoder from the side.

[0037] The rack ring 8 is a ferromagnetic metal ring with protruding teeth arranged at intervals along the circumference of the rack ring 8. The outer shell 2 is connected to a magnet 18 located on the bottom surface of the annular groove 4, and the position of the magnet 18 corresponds to the protruding teeth of the rack ring 8.

[0038] By aligning the position of magnet 18 with the convex teeth of rack ring 8, when the convex teeth are aligned with magnet 18, the ferromagnetic convex teeth are attracted by the magnetic force of magnet 18. When the convex teeth are aligned with magnet 18 at the intervals between them, the magnetic force on the convex teeth is weakened, which generates a damping sensation when rotating knob ring 3, making it easier to slow down the rotation speed of knob ring 3 and helping the operator to accurately rotate knob ring 3 to the desired gear.

[0039] The outer edge of the front of the cover knob ring 14 is provided with a push plate 19, which extends out of the annular groove 4 and tilts up to the side away from the annular groove 4.

[0040] A push plate 19 is provided on the outer edge of the front of the cover knob ring 14. The push plate 19 extends out of the annular groove 4 and tilts up to the side away from the annular groove 4, forming a space between the push plate 19 and the annular groove 4, so that the fingertip can reach to the back of the push plate 19 to exert force and push the knob ring 3 away from the annular groove 4.

[0041] The elastic element 6 consists of several arc-shaped elastic rods, which are spaced apart along the circumference of the annular plate, and all the elastic rods protrude into the annular groove 4.

[0042] The elastic element 6 has several arc-shaped elastic rods, which are spaced apart along the circumference of the annular plate. The elastic rods protrude into the annular groove 4 and insert into the snap-fit ​​groove 7, forming multi-point support. This makes the snap-fit ​​connection of the knob ring 3 more stable and prevents the knob ring 3 from falling off the annular groove 4 due to accidental contact.

Claims

1. An oven rotary control panel, characterized in that: The device includes a PCB board, a housing, and a knob ring assembly. The PCB board is connected to the back of the housing, and a photoelectric encoder is soldered onto the PCB board to form a passage. The front of the housing has an annular groove, and a knob buckle is provided in the annular groove. The knob buckle includes a base plate connected to the bottom of the annular groove and an annular plate that fits against the side wall of the annular groove. The end of the annular plate has an elastic element that protrudes into the annular groove. The knob ring assembly includes knob rings of different colors. Any knob ring is concentrically set in the annular groove. The knob ring has a locking groove along its inner circumference that matches the elastic element. The back of the knob ring has a rack ring with convex teeth that are evenly spaced along its own circumference. The detection port of the photoelectric encoder is aligned with the convex teeth.

2. The oven knob control panel according to claim 1, characterized in that: The outer casing is connected to a panel and buttons in sequence towards the end. A touch spring is connected to the back of the panel. The touch spring is soldered to the sensor plate on the PCB board to form a path. The buttons are electrically connected to the PCB board. A circular window with the same center is connected to the inner circumference of the annular groove. A display screen is soldered to the PCB board to form a path. The front of the display screen is attached to the bottom surface of the circular window.

3. The oven knob control panel according to claim 2, characterized in that: A screen bracket is fixed on the PCB board. The screen bracket has a positioning plate that fits the side of the display screen and a support plate that fits the back of the display screen.

4. The oven knob control panel according to claim 1, characterized in that: The knob ring includes a cover knob ring, a rack ring, and a seat knob ring arranged concentrically. The cover knob ring is connected to the front of the rack ring and the seat knob ring. The seat knob ring is made of a light-transmitting material. The front of the seat knob ring has a rack groove that matches the shape and size of the rack ring. The rack ring is set in the rack groove. There is a detection gap between the protruding teeth of the rack ring and the side wall of the rack groove. The snap-fit ​​groove is set on the inner circumferential surface of the seat knob ring.

5. The oven knob control panel according to claim 4, characterized in that: The bottom of the annular groove is provided with a vertical detection through hole, the top of the detection through hole corresponds to the position of the detection interval, the position of the photoelectric encoder is aligned with the bottom of the detection through hole, and the base plate is provided with a notch to be offset from the detection through hole.

6. The oven knob control panel according to claim 1, characterized in that: The rack ring is a ferromagnetic metal ring with protruding teeth arranged at intervals along the circumference of the rack ring. The outer shell is connected to a magnet located at the bottom of the annular groove, and the position of the magnet corresponds to the protruding teeth of the rack ring.

7. The oven knob control panel according to claim 4, characterized in that: The outer edge of the front of the cover knob ring is provided with a push plate, which extends outside the annular groove and tilts upwards to the side away from the annular groove.

8. The oven knob control panel according to claim 1, characterized in that: The elastic element consists of several arc-shaped elastic rods, which are spaced apart along the circumference of the annular plate, and all the elastic rods protrude into the annular groove.

Images