Stable light-emitting knob and stove

Abstract

The utility model provides a stable luminous knob and stove, the knob includes: screw cap, base, circuit board and energy storage battery, the inside of screw cap is provided with connecting post, mounting post and battery compartment, the inside of connecting post is provided with main groove part and abutting groove part, the middle part of base is provided with through hole, and the battery compartment is provided with through hole. A stove fire control shaft is inserted into the main groove part through the through hole; the control circuit comprises a single-chip microcomputer, a first angle switch, a second angle switch, a first lamp bead string, a second lamp bead string, a first MOS tube, a second MOS tube, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor and a sixth resistor. Through the arrangement of the first angle switch and the second angle switch, the rotation angle of the screw cap is detected through the angle switches, and the situation that detection is not sensitive in some application environments due to faults of a permanent magnet in the prior art is avoided. Therefore, the whole knob is more reliable. The stove is mainly used in the field of stoves.

Description

Technical Field

[0001] This technical solution relates to the field of stoves, specifically to a stable luminous knob and stove. Background Technology

[0002] The knobs used in existing stoves have a relatively simple structural design. Over time, the contact points between the rotating shaft and the knob gradually age, leading to gaps between the shaft and the knob, causing it to loosen and fall off. Therefore, in related technologies (such as CN222600826U), to improve the stability of the knob, a curved metal plate is used to abut against the stove's fire control shaft to prevent loosening. However, in some applications, this technology can cause the light to become unresponsive when the knob is turned. Therefore, how to solve this problem is a technical issue that urgently needs to be addressed in the industry. Utility Model Content

[0003] This invention provides a stable luminous knob and stove to solve one or more technical problems existing in the prior art, and at least provides a beneficial option or creates conditions.

[0004] On the one hand, a stable luminous knob is provided, including: a cover, a base, a circuit board and an energy storage battery. The cover is provided with a connecting post, a mounting post and a battery compartment. The connecting post is provided with a main groove and an abutting groove. There is a communication opening between the abutting groove and the main groove. The base is provided with a through hole in the middle. An external stove fire control shaft is inserted into the main groove through the through hole.

[0005] The interior of the abutting groove is equipped with an arc-shaped metal sheet. The elastic arc surface of the arc-shaped metal sheet abuts against the stove fire control shaft through the connecting port. The elastic arc surface provides a horizontal force to the shaft of the stove fire control shaft through deformation.

[0006] The circuit board is connected to the mounting post, and the energy storage battery falls into the battery compartment. The circuit board includes: a substrate and a control circuit.

[0007] The control circuit includes: a microcontroller, a first angle switch, a second angle switch, a first LED string, a second LED string, a first MOSFET, a second MOSFET, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, and a sixth resistor;

[0008] The positive terminals of the first LED string, the second LED string, and the microcontroller are respectively connected to the positive terminal of the energy storage battery; the negative terminal of the first LED string is connected to one end of the first resistor, the other end of the first resistor is connected to the source of the first MOS transistor, the gate of the first MOS transistor is connected to one end of the second resistor and one end of the third resistor, and the other end of the third resistor is connected to the first output terminal of the microcontroller.

[0009] The negative terminal of the second LED string is connected to one end of the fourth resistor, the other end of the fourth resistor is connected to the source of the second MOS transistor, the gate of the second MOS transistor is connected to one end of the fifth resistor and one end of the sixth resistor, and the other end of the sixth resistor is connected to the second output terminal of the microcontroller.

[0010] One end of the first angle switch is connected to the first input terminal of the microcontroller, and one end of the second angle switch is connected to the second input terminal of the microcontroller; the other ends of the sixth resistor, the second resistor, the ground terminal of the microcontroller, the first angle switch, and the second angle switch are all connected to the negative terminal of the energy storage battery.

[0011] Furthermore, the first LED string is composed of several yellow LEDs connected in parallel.

[0012] Furthermore, the second LED string is composed of several red LEDs connected in parallel.

[0013] Furthermore, a light-transmitting window is provided at the top of the screw cap, and the light-emitting surfaces of the first and second LED strings both face the light-transmitting window.

[0014] Furthermore, the stable light-emitting knob also includes a frosted light-transmitting cover that covers the light-transmitting window.

[0015] Furthermore, the base is generally shaped like a frustum, narrower at the top and wider at the bottom.

[0016] Furthermore, the energy storage battery is a lithium battery.

[0017] Furthermore, the control circuit also includes a filter capacitor, one end of which is connected to the positive terminal of the energy storage battery, and the other end of which is connected to the negative terminal of the energy storage battery.

[0018] Furthermore, the substrate is a glass fiber component.

[0019] On the other hand, a stove is also provided, including the stove and the stable luminous knob described in any of the above.

[0020] The beneficial effects of this invention are as follows: By adding an arc-shaped metal sheet inside the abutting groove, the elastic deformation of the arc-shaped metal sheet provides a horizontal force to the shaft of the stove's fire control shaft, making the knob fit more tightly with the stove's fire control shaft. By setting a first angle switch and a second angle switch, the rotation angle of the knob is detected, avoiding the insensitivity issues caused by permanent magnet failures in some application environments. This makes the entire knob more reliable. Furthermore, a stove integrating the aforementioned luminous knob is also provided; the beneficial effects of this stove are similar to those of the luminous knob and will not be repeated here. Attached Figure Description

[0021] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.

[0022] Figure 1 This is an exploded structural diagram of a stable illuminated knob;

[0023] Figure 2 This is a schematic diagram of the circuit connection structure of the control circuit;

[0024] Figure 3 This is a schematic diagram of the internal structure of the screw cap;

[0025] Figure 4 This is a three-dimensional structural diagram of a stable, illuminated knob. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 . Figure 1 This is an exploded structural diagram of a stable illuminated knob. Figure 2 This is a schematic diagram of the circuit connection structure of the control circuit. Figure 3 This is a schematic diagram of the internal structure of the screw cap. Figure 4 This is a three-dimensional structural diagram of a stable, illuminated knob.

[0028] Research has revealed that in practical applications, if a knob is used outdoors or in complex environments for extended periods, existing technologies using Hall effect sensors and permanent magnets for rotation detection can easily experience insensitive rotation detection due to permanent magnet malfunctions in these environments. Therefore, to avoid this problem and address these complex environments, this application discloses a stable luminous knob, comprising: a knob cover 100, a base 300, a circuit board 200, and an energy storage battery 400.

[0029] The screw cap 100 internally comprises a connecting post 110, a mounting post 103, and a battery compartment 104. The connecting post 110 has a main groove 101 and an abutting groove 102, with a communication opening between the abutting groove 102 and the main groove 101. The base 300 has a through hole 310 in its center, through which an external stove fire control shaft is inserted into the main groove 101. The abutting groove 102 contains an arc-shaped metal sheet, the elastic arc surface of which abuts against the stove fire control shaft through the communication opening. The elastic arc surface provides a horizontal force to the shaft of the stove fire control shaft through deformation.

[0030] The main groove 101 is for inserting the external stove fire control shaft. However, in actual operation, if only the main groove 101 is present, gaps will develop in the connection between the stove fire control shaft and the main groove 101 over time, causing horizontal wobbling between the knob 100 and the stove fire control shaft. This affects the overall user experience of the illuminated knob. To solve this technical problem, this specific embodiment, in addition to the main groove 101 on the connecting post 110, also includes an abutment groove 102. The main groove 101 and the abutment groove 102 are connected through a connecting port.

[0031] In actual operation, an arc-shaped metal piece is inserted inside the abutment groove 102. The size of the arc-shaped metal piece is adapted to the abutment groove 102. Because the arc-shaped metal piece has an elastic curved surface, when it is inserted into the abutment groove 102, the elastic curved surface acts on the main groove 101 through the connecting port. Since the stove fire control shaft is inserted into the main groove 101, the elastic curved surface abuts against the stove fire control shaft through the connecting port. Because the elastic curved surface is elastic, this elasticity provides a horizontal force to the shaft of the stove fire control shaft. This allows the stove fire control shaft to fit snugly in the main groove 101, preventing wobbling.

[0032] To enable the knob to emit light, the circuit board 200 is mounted on the cover 100 via mounting posts 103. A storage battery 400 is housed in the battery compartment 104, providing the necessary electrical energy to the circuit board 200. This allows the circuit board 200 to emit light by rotating the cover 100.

[0033] The circuit board 200 includes a substrate and a control circuit. In some further embodiments, the substrate is a fiberglass component.

[0034] The substrate serves as a mounting carrier for the control circuit. The substrate has multiple through holes, and it is installed in the screw cap 100 by connecting the through holes with screws and threading them to the mounting post 103.

[0035] The function of the control circuit is to realize the function of emitting light by detecting the 100° angle of the rotating cap. The control circuit includes: microcontroller U1, first angle switch K1, second angle switch K2, first LED string LEDG, second LED string LEDR, first MOSFET Q1, second MOSFET Q2, first resistor R1, second resistor R2, third resistor R3, fourth resistor R4, fifth resistor R5, and sixth resistor R6.

[0036] The first angle switch K1 is an integrated photoelectric or ball-bearing tilt switch. The second angle switch K2 is an integrated photoelectric or ball-bearing tilt switch.

[0037] The positive terminals of the first LED string LEDG, the second LED string LEDR, and the power supply terminal VDD of the microcontroller U1 are respectively connected to the positive terminal of the energy storage battery 400.

[0038] In some further specific embodiments, the first LED string (LEDG) and the second LED string (LEDR) are as follows: The first LED string (LEDG) consists of several yellow LEDs connected in parallel. The yellow LEDs are LED chips that emit yellow light. The second LED string (LEDR) consists of several red LEDs connected in parallel. The red LEDs are LED chips that emit red light.

[0039] The negative terminal of the first LED string LEDG is connected to one end of the first resistor R1, the other end of the first resistor R1 is connected to the source of the first MOSFET Q1, the gate of the first MOSFET Q1 is connected to one end of the second resistor R2 and one end of the third resistor R3, and the other end of the third resistor R3 is connected to the first output terminal VH-G of the microcontroller U1.

[0040] The negative terminal of the second LED string LEDR is connected to one end of the fourth resistor R4, and the other end of the fourth resistor R4 is connected to the source of the second MOS transistor Q2. The gate of the second MOS transistor Q2 is connected to one end of the fifth resistor R5 and one end of the sixth resistor R6, respectively. The other end of the sixth resistor R6 is connected to the second output terminal VH-R of the microcontroller U1.

[0041] One end of the first angle switch K1 is connected to the first input terminal KBY1 of the microcontroller U1, and one end of the second angle switch K2 is connected to the second input terminal KBY2 of the microcontroller U1.

[0042] The other end of the sixth resistor R6, the other end of the second resistor R2, the ground terminal GND of the microcontroller U1, the other end of the first angle switch K1, and the other end of the second angle switch K2 are all connected to the negative terminal of the energy storage battery 400.

[0043] In some further specific embodiments, the microcontroller U1 uses a WL1109 chip.

[0044] The first angle switch K1 sets the corresponding first target angle, and the second angle switch K2 sets the corresponding second target angle. The first target angle and the second target angle are not the same. For example, the second target angle can be set to be greater than the first target angle.

[0045] When heat control is required, the rotating cap 100 drives the stove's heat control shaft to rotate. The rotation angle of this shaft is recorded as the current angle. By comparing the current angle with the first and second target angles, the microcontroller U1 can determine the rotation status of the heat control shaft. This rotation status reflects the stove's heat control status.

[0046] By pre-setting parameters, for example, if the current angle is greater than the first target angle but less than the second target angle, then the first angle switch K1 outputs a high level and the second angle switch K2 outputs a low level. This state can then be obtained through the first input terminal KBY1 and the second input terminal KBY2 of the microcontroller U1. Therefore, the microcontroller U1 can control the first MOSFET Q1 and the second MOSFET Q2 through its first output terminal VH-G and the second output terminal VH-R, thereby controlling the first LED string LEDG and the second LED string LEDR.

[0047] Similarly, the current angle is greater than both the first target angle and the second target angle. At this time, the first angle switch K1 outputs a high level, and the second angle switch K2 outputs a high level. This state can then be determined through the first input terminal KBY1 and the second input terminal KBY2 of the microcontroller U1. Therefore, the microcontroller U1 can control the first MOSFET Q1 and the second MOSFET Q2 through its first output terminal VH-G and second output terminal VH-R, thereby controlling the first LED string LEDG and the second LED string LEDR.

[0048] Similarly, when the current angle is less than the first target angle and the second target angle, the first angle switch K1 outputs a low level, and the second angle switch K2 outputs a low level. This state can then be determined through the first input terminal KBY1 and the second input terminal KBY2 of the microcontroller U1. Therefore, the microcontroller U1 can control the first MOSFET Q1 and the second MOSFET Q2 through its first output terminal VH-G and the second output terminal VH-R, thereby controlling the first LED string LEDG and the second LED string LEDR.

[0049] In summary, by understanding the relationship between the current rotation angle of the screw cap 100 and the first and second target angles, the microcontroller U1 can determine the rotation status of the stove's fire control shaft. This allows the microcontroller U1 to control the first LED string (LEDG) and the second LED string (LEDR) based on this rotation information. This results in the emission of yellow and red light, with different external colors achieved through the mixing of these two lights. This allows users to easily monitor the status of the stove's fire control shaft during operation.

[0050] This invention incorporates an arc-shaped metal sheet inside the abutment groove 102. The elastic deformation of this sheet provides a horizontal force to the stove's fire control shaft, resulting in a tighter fit between the knob and the shaft. By using a first angle switch K1 and a second angle switch K2 (an integrated photoelectric or ball-bearing tilt switch) to detect the rotation angle of the cover 100, this invention avoids the insensitivity issues caused by permanent magnet failures in some applications. This makes the entire knob more reliable.

[0051] To guide the light emission of the first LED string (LEDG) and the second LED string (LEDR), the light can be emitted upwards through the screw cap 100. Therefore, in some further embodiments, a light-transmitting window is provided at the top of the screw cap 100, with the light-emitting surfaces of both the first LED string (LEDG) and the second LED string (LEDR) facing the light-transmitting window. When the first LED string (LEDG) and the second LED string (LEDR) emit light, their light emission can be emitted through the light-transmitting window from the top of the screw cap 100. This allows the user to more easily observe the light emission status of the first LED string (LEDG) and the second LED string (LEDR).

[0052] To prevent the light emitted by the first LED string (LEDG) and the second LED string (LEDR) from being glaring, in some further embodiments, the stable light-emitting knob also includes a frosted light-transmitting cover that covers the light-transmitting window. By covering the light-transmitting window with the frosted light-transmitting cover, the light emitted by the first LED string (LEDG) and the second LED string (LEDR) is blurred, thus avoiding glare.

[0053] To enhance the aesthetics of the base 300, in some further specific embodiments, the base 300 is generally shaped like a frustum, narrower at the top and wider at the bottom.

[0054] In some further specific embodiments, the energy storage battery 400 is a lithium battery.

[0055] In order to improve the output stability of the energy storage battery 400, in some further specific embodiments, the control circuit further includes a filter capacitor, one end of which is connected to the positive terminal of the energy storage battery 400, and the other end of which is connected to the negative terminal of the energy storage battery 400.

[0056] On the other hand, the present invention also provides a stove, which integrates a stable luminous knob as described in any of the above specific embodiments.

[0057] Although the description of this application has been quite detailed and particularly focused on the described embodiments, it is not intended to limit itself to any of these details or embodiments or any particular embodiment, but should be considered as effectively covering the intended scope of this application by referring to the appended claims and taking into account the prior art to provide a broad possible interpretation of these claims. Furthermore, the foregoing description of this application with respect to embodiments foreseeable by the inventors is intended to provide a useful description, and non-substantial modifications to this application that have not yet been foreseen may still represent equivalent modifications.

Claims

1. A stable luminous knob, characterized in that, include: The components include a screw cap, a base, a circuit board, and an energy storage battery. The screw cap has a connecting column, a mounting column, and a battery compartment inside. The connecting column has a main groove and an abutting groove. There is a communication opening between the abutting groove and the main groove. The base has a through hole in the middle. An external stove fire control shaft is inserted into the main groove through the through hole. The interior of the abutting groove is equipped with an arc-shaped metal sheet. The elastic arc surface of the arc-shaped metal sheet abuts against the stove fire control shaft through the connecting port. The elastic arc surface provides a horizontal force to the shaft of the stove fire control shaft through deformation. The circuit board is connected to the mounting post, and the energy storage battery falls into the battery compartment. The circuit board includes: a substrate and a control circuit. The control circuit includes: a microcontroller, a first angle switch, a second angle switch, a first LED string, a second LED string, a first MOSFET, a second MOSFET, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, and a sixth resistor; The positive terminals of the first LED string, the second LED string, and the microcontroller are respectively connected to the positive terminal of the energy storage battery; the negative terminal of the first LED string is connected to one end of the first resistor, the other end of the first resistor is connected to the source of the first MOS transistor, the gate of the first MOS transistor is connected to one end of the second resistor and one end of the third resistor, and the other end of the third resistor is connected to the first output terminal of the microcontroller. The negative terminal of the second LED string is connected to one end of the fourth resistor, the other end of the fourth resistor is connected to the source of the second MOS transistor, the gate of the second MOS transistor is connected to one end of the fifth resistor and one end of the sixth resistor, and the other end of the sixth resistor is connected to the second output terminal of the microcontroller. One end of the first angle switch is connected to the first input terminal of the microcontroller, and one end of the second angle switch is connected to the second input terminal of the microcontroller; the other ends of the sixth resistor, the second resistor, the ground terminal of the microcontroller, the first angle switch, and the second angle switch are all connected to the negative terminal of the energy storage battery.

2. A stable luminous knob according to claim 1, characterized in that, The first LED string is composed of several yellow LEDs connected in parallel.

3. A stable luminous knob according to claim 1, characterized in that, The second LED string is composed of several red LED beads connected in parallel.

4. A stable luminous knob according to claim 1, characterized in that, The top of the screw cap is provided with a light-transmitting window, and the light-emitting surfaces of the first and second LED strings both face the light-transmitting window.

5. A stable luminous knob according to claim 4, characterized in that, It also includes a frosted light-transmitting cover that covers the light-transmitting window.

6. A stable luminous knob according to claim 1, characterized in that, The base is generally shaped like a frustum, narrower at the top and wider at the bottom.

7. A stable luminous knob according to claim 1, characterized in that, The energy storage battery is a lithium battery.

8. A stable luminous knob according to claim 1, characterized in that, The control circuit further includes a filter capacitor, one end of which is connected to the positive terminal of the energy storage battery, and the other end of which is connected to the negative terminal of the energy storage battery.

9. A stable luminous knob according to claim 1, characterized in that, The substrate is a glass fiber component.

10. A stove, characterized in that, Includes a stove and a stable luminous knob as described in any one of claims 1-9.

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