Dimming circuit of handle lamp and knob lamp and oven

Abstract

The utility model discloses a dimming circuit of a handle lamp and a knob lamp and an oven. The dimming circuit for the handle lamp and the knob lamp comprises a main control module, a key module, a first driving module, a knob lamp module, a second driving module and a handle lamp module, the key module is connected with the main control module, and the key module comprises a plurality of dimming keys; the main control module, the first driving module and the knob lamp module are connected in sequence, the main control module, the second driving module and the handle lamp module are connected in sequence, and each of the knob lamp module and the handle lamp module comprises a plurality of RGB lamps; and the main control module is used for controlling the first driving module to drive the knob lamp module to change the light color and controlling the second driving module to drive the handle lamp module to change the light color according to the operation of a user on the dimming key. According to the utility model, a user can adjust the light colors of the handle lamp and the knob lamp, so that the use experience of the user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of light control circuits, in particular to a dimming circuit for a handle lamp and a knob lamp and an oven. Background Art

[0002] Nowadays, many household appliances such as ovens, range hoods, refrigerators, etc. are equipped with lamps. The luminous lamps can not only indicate the working status of the appliances, but also meet the preferences of different consumers for lighting. Some electrical products have handle lights on their handles and knob lights on their knobs. However, the current knob lights and handle lights have only one color, which is monotonous. If the user changes the light color, the lamp needs to be replaced, which undoubtedly cannot meet the user's demand for light color and reduces the user experience. Utility Model Content

[0003] The utility model provides a dimming circuit for a handle lamp and a knob lamp and an oven, and a user can adjust the light color of the handle lamp and the knob lamp, thereby improving the user's use experience.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] According to the first aspect of the utility model, an embodiment of the utility model provides a dimming circuit for a handle light and a knob light, comprising a main control module, a button module, a first drive module, a knob light module, a second drive module and a handle light module; the button module is connected to the main control module, and the button module comprises a plurality of dimming buttons; the main control module, the first drive module and the knob light module are connected in sequence, the main control module, the second drive module and the handle light module are connected in sequence, and the knob light module and the handle light module each comprise a plurality of RGB lights; the main control module is used to control the first drive module to drive the knob light module to change the light color, and to control the second drive module to drive the handle light module to change the light color, according to the user's operation of the dimming button.

[0006] In some embodiments, the first driving module includes a first MOS tube, a second MOS tube and a third MOS tube; a DC power supply, an R lamp in an RGB lamp, a first resistor and a drain of the first MOS tube are connected in sequence, a gate of the first MOS tube, a second resistor and a main control module are connected in sequence, a source of the first MOS tube is grounded, and two ends of the third resistor are respectively connected to the source and gate of the first MOS tube; a DC power supply, a G lamp in an RGB lamp, a fourth resistor and a drain of the second MOS tube are connected in sequence, a gate of the second MOS tube, a fifth resistor and the main control module are connected in sequence, a source of the second MOS tube is grounded, and two ends of the sixth resistor are respectively connected to the source and gate of the second MOS tube; a DC power supply, a B lamp in an RGB lamp, a seventh resistor and a drain of the third MOS tube are connected in sequence, a gate of the third MOS tube, an eighth resistor and the main control module are connected in sequence, a source of the third MOS tube is grounded, and two ends of the ninth resistor are respectively connected to the source and gate of the third MOS tube.

[0007] In some embodiments, the RGB lamp of the handle light module is a 5050RGB lamp bead, and the 5050RGB lamp beads are connected in series in sequence. In the series connection direction, the 4 pins of the first 5050RGB lamp bead are connected to the second driving module, and starting from the second 5050RGB lamp bead, the 4 pins of each 5050RGB lamp bead are connected to the 2 pins of the previous 5050RGB lamp bead, and the 2 pins of the last 5050RGB lamp bead are grounded.

[0008] In some embodiments, the second driving module includes a chip SC92F7250, pin 6 of the chip SC92F7250 is connected to pin 4 of the first 5050 RGB lamp bead, and pins 2 and 3 of the chip SC92F7250 are both connected to the main control module.

[0009] In some embodiments, the dimming button is a touch button, and the button module includes a chip FTC334F.

[0010] In some embodiments, several button indication modules are further included. The button indication modules are connected to the main control module, and the button indication modules correspond to the dimming buttons. Each button indication module includes an indicator light.

[0011] In some embodiments, a display driving module and a display module are also included, and the main control module, the display driving module and the display module are connected in sequence.

[0012] In some embodiments, the main control module includes a chip SC95F7515P32R.

[0013] According to the second aspect of the utility model, an embodiment of the utility model provides an oven, comprising an oven body and a dimming circuit for a handle light and a knob light as described in any one of the first aspects above, wherein a handle and a knob are provided on the oven body, the RGB lamp included in the knob light module is provided on the knob, and the RGB lamp included in the handle light module is provided on the handle.

[0014] The present invention has at least the following beneficial effects: the knob light module and the handle light module of the present invention both include multiple RGB lights, and the RGB lights can change color according to a driving signal; a user can operate a dimming button, and the main control module sends corresponding control instructions to the first driving module and the second driving module according to the user's operation of the dimming button, and the first driving module drives the knob light module to change the light color according to the control instruction, and the second driving module drives the handle light module to change the light color according to the control instruction; the user can adjust the light color of the handle light and the knob light to the color he or she wants, so that the light color of the handle light and the knob light is no longer single, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a module schematic diagram of a dimming circuit for a handle light and a knob light according to an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the circuit structure of a main control module of an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the circuit structure of a first driving module in an embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of the circuit structure of a handle light module according to an embodiment of the utility model;

[0019] Figure 5 This is a schematic diagram of the circuit structure of a second driving module in one embodiment of the utility model;

[0020] Figure 6 This is a schematic diagram of the circuit structure of a key module of an embodiment of the utility model;

[0021] Figure 7 This is a schematic diagram of the circuit structure of a key indicating module according to an embodiment of the utility model;

[0022] Figure 8 The present invention is a schematic diagram of a circuit structure of a display driving module according to an embodiment of the present invention.

[0023] Wherein, the accompanying drawings are marked as follows:

[0024] Main control module 100 , button module 200 , button indication module 210 , first driving module 310 , second driving module 320 , knob light module 400 , handle light module 500 , display driving module 600 , display module 700 . DETAILED DESCRIPTION

[0025] The utility model provides the following description with reference to the accompanying drawings to help fully understand the various embodiments of the utility model as defined by the claims and their equivalents. The description includes various specific details to help understanding, but these details should be regarded as exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the utility model.

[0026] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] It will be understood that when one element (eg, a first element) is “connected” to another element (eg, a second element), the element may be directly connected to the other element or an intervening element (eg, a third element) may be present between the element and the other element.

[0028] The embodiment of the utility model provides a dimming circuit for a handle lamp and a knob lamp, such as Figure 1 As shown, it includes a main control module 100, a button module 200, a first driving module 310, a knob light module 400, a second driving module 320 and a handle light module 500. The main control module 100 is used for data processing and calculation, and may include control chips such as a single-chip microcomputer chip, a DSP chip, a programmable logic device, and may also include peripheral circuits of the control chip when necessary. The button module 200 is connected to the main control module 100, and the button module 200 includes a plurality of dimming buttons. When the user operates the dimming button, it means that the user wants to adjust the light color of the handle light and the knob light. The main control module 100 can obtain the user's operation instruction and then issue a corresponding control instruction according to the operation instruction. Among them, one dimming button can be set, and the light color can be changed once the user presses it once. Multiple dimming buttons can also be set, and the light color is determined by the combination of multiple dimming buttons.

[0029] The main control module 100, the first driving module 310 and the knob light module 400 are connected in sequence, and the main control module 100, the second driving module 320 and the handle light module 500 are connected in sequence. The knob light module 400 and the handle light module 500 both include a plurality of RGB lights, and the RGB lights change their light colors according to the changes in the driving signal. The user can operate the dimming button, and the main control module 100 sends corresponding control instructions to the first driving module 310 and the second driving module 320 according to the user's operation of the dimming button. The first driving module 310 drives the RGB lights of the knob light module 400 to change the light color according to the control instruction, and the second driving module 320 drives the RGB lights of the handle light module 500 to change the light color according to the control instruction. Therefore, the user can adjust the light color of the handle light and the knob light to the specified color according to his own needs, so that the light color of the handle light and the knob light is no longer single, thereby improving the user's experience.

[0030] In some embodiments, Figure 2 As shown, the main control module includes the chip SC95F7515P32R, which is an enhanced flash microcontroller unit with an instruction set compatible with the standard 80C51 series. It integrates a hardware multiplier and divider as well as a dual DPTR data pointer to speed up data operation and movement. In the following, the main control module including the chip SC95F7515P32R will be used as an example for explanation.

[0031] In some embodiments, Figure 3 As shown, the first driving module includes a first MOS tube Q1, a second MOS tube Q2 and a third MOS tube Q3. The RGB lamp of the knob lamp module includes three small lamp beads, namely, R lamp (red light), G lamp (green light) and B lamp (blue light). The DC power supply, the R lamp in the RGB lamp, the first resistor R22 and the drain of the first MOS tube are connected in sequence, the gate of the first MOS tube, the second resistor R45 and the main control module are connected in sequence, the source of the first MOS tube is grounded, and the two ends of the third resistor R21 are respectively connected to the source and gate of the first MOS tube. The DC power supply, the G lamp in the RGB lamp, the fourth resistor R51 and the drain of the second MOS tube are connected in sequence, the gate of the second MOS tube, the fifth resistor R47 and the main control module are connected in sequence, the source of the second MOS tube is grounded, and the two ends of the sixth resistor R46 are respectively connected to the source and gate of the second MOS tube. The DC power supply, the B lamp in the RGB lamp, the seventh resistor R50 and the drain of the third MOS tube are connected in sequence, the gate of the third MOS tube, the eighth resistor R49 and the main control module are connected in sequence, the source of the third MOS tube is grounded, and the two ends of the ninth resistor R48 are respectively connected to the source and gate of the third MOS tube.

[0032] The main control module changes the conduction frequency of the first MOS tube Q1, the second MOS tube Q2 and the third MOS tube Q3 by outputting a PWM waveform, thereby adjusting the light ratio of the R lamp, the G lamp and the B lamp to achieve the adjustment of multiple colors.

[0033] In some embodiments, Figure 4 As shown, the RGB lamp of the handle light module is a 5050RGB lamp bead. Pin 1 of the 5050RGB lamp bead is connected to a 5V DC power supply, and pin 3 is grounded. All 5050RGB lamp beads are connected in series. In the direction of series connection, pin 4 of the first 5050RGB lamp bead is connected to the second driver module. For example, Figure 4 The 4th pin of the 5050RGB lamp bead on the left side is connected to the second driver module. Starting from the second 5050RGB lamp bead, the 4th pin of each 5050RGB lamp bead is connected to the 2nd pin of the previous 5050RGB lamp bead, thus realizing series connection, and the 2nd pin of the last 5050RGB lamp bead is grounded. The driving signal sent by the second driver module will drive all 5050RGB lamp beads to change color at the same time.

[0034] Further, such as Figure 5 As shown, the second driving module includes a chip SC92F7250, pin 6 of the chip SC92F7250 is connected to pin 4 of the first 5050RGB lamp bead, and pins 2 and 3 of the chip SC92F7250 are both connected to the main control module. Specifically, pin 2 of the chip SC92F7250 is connected to pin 22 of the chip SC95F7515P32R, and pin 3 of the chip SC92F7250 is connected to pin 24 of the chip SC95F7515P32R. Thus, the chip SC95F7515P32R can send control instructions to the chip SC92F7250.

[0035] In some embodiments, Figure 6 As shown, the dimming button is a touch button. The touch button can specifically use a touch spring, touch springs M1, M2, M3, M4, M5, M6, M7, M8 and M9. There are a total of nine touch springs, corresponding to nine touch buttons. The button module includes a chip FTC334F. Each touch spring is connected with a resistor and then connected to the corresponding pin of the chip FTC334F. The touch button is simpler and more labor-saving to operate, which can further enhance the user experience.

[0036] In some embodiments, Figure 1As shown, the dimming circuit of the handle light and the knob light of the present embodiment also includes a plurality of button indication modules 210. The button indication modules 210 are connected to the main control module 100, and the button indication modules 210 correspond to the dimming buttons. The dimming buttons can correspond one to one with the button indication modules 210. Each button indication module 210 includes an indicator light. When the touch button adopts a touch spring, the position of the touch button is not easy to find on the operation panel. The indicator light can light up the position of the touch button to facilitate user operation.

[0037] like Figure 7 As shown, the key indication module includes an indicator light LED1 and a resistor R36. The 19th pin of the chip SC95F7515P32R, the indicator light LED1, the resistor R36 and the 14th pin of the chip SC95F7515P32R are connected in sequence. The indicator light is turned on or off by the change of the high and low levels output by the 19th and 14th pins of the chip SC95F7515P32R.

[0038] In some embodiments, Figure 1 As shown, the dimming circuit of the handle lamp and the knob lamp of this embodiment further includes a display driver module 600 and a display module 700, and the main control module 100, the display driver module 600 and the display module 700 are connected in sequence. The display driver module 600 drives the display module 700 to display information according to the control instruction of the main control module 100, and the display module 700 can display menu information, dimming information, working parameter information, etc., to facilitate human-computer interaction.

[0039] The display module may include a digital display tube, such as Figure 8 As shown, the display driver module is the driver of the digital display tube. The display driver module specifically includes the chip TM1640, which can drive 16 8-bit digital tubes. The 7th pin of the chip TM1640 is connected to the 18th pin of the chip SC95F7515P32R, and the 8th pin of the chip TM1640 is connected to the 17th pin of the chip SC95F7515P32R.

[0040] The embodiment of the utility model further provides an oven, comprising an oven body and a dimming circuit for a handle light and a knob light of any of the above embodiments. The specific description of the dimming circuit for the handle light and the knob light can refer to the above embodiments and will not be repeated here. The oven body is provided with a handle and a knob, the RGB lamp included in the knob lamp module is provided on the knob, and the RGB lamp included in the handle lamp module is provided on the handle. Thus, both the handle and the knob can emit light, and the user can adjust the light color according to his or her own needs.

[0041] The terms and words used in the above description and claims are not limited to the literal meanings, but are only used by the applicant to enable a clear and consistent understanding of the utility model. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the utility model is provided only for illustration, and not for limiting the utility model as defined by the attached claims and their equivalents.

Claims

1. A dimming circuit for a handle light and a knob light, characterized in that: It includes a main control module, a key module, a first driving module, a knob light module, a second driving module and a handle light module; the key module is connected to the main control module, and the key module includes a plurality of dimming keys; the main control module, the first driving module and the knob light module are connected in sequence, the main control module, the second driving module and the handle light module are connected in sequence, and the knob light module and the handle light module each include a plurality of RGB lights; the main control module is used to control the first driving module to drive the knob light module to change the light color, and control the second driving module to drive the handle light module to change the light color according to the user's operation on the dimming key.

2. The dimming circuit of the handle light and the knob light according to claim 1, characterized in that: The first driving module includes a first MOS tube, a second MOS tube and a third MOS tube; a DC power supply, an R lamp in an RGB lamp, a first resistor and a drain of the first MOS tube are connected in sequence, a gate of the first MOS tube, a second resistor and a main control module are connected in sequence, a source of the first MOS tube is grounded, and two ends of the third resistor are respectively connected to the source and gate of the first MOS tube; a DC power supply, a G lamp in an RGB lamp, a fourth resistor and a drain of the second MOS tube are connected in sequence, a gate of the second MOS tube, a fifth resistor and the main control module are connected in sequence, a source of the second MOS tube is grounded, and two ends of the sixth resistor are respectively connected to the source and gate of the second MOS tube; a DC power supply, a B lamp in an RGB lamp, a seventh resistor and a drain of the third MOS tube are connected in sequence, a gate of the third MOS tube, an eighth resistor and the main control module are connected in sequence, a source of the third MOS tube is grounded, and two ends of the ninth resistor are respectively connected to the source and gate of the third MOS tube.

3. The dimming circuit of the handle light and the knob light according to claim 1, characterized in that: The RGB lamp of the handle light module is a 5050RGB lamp bead, which is connected in series in sequence. In the series connection direction, the 4 pins of the first 5050RGB lamp bead are connected to the second driving module, and starting from the second 5050RGB lamp bead, the 4 pins of each 5050RGB lamp bead are connected to the 2 pins of the previous 5050RGB lamp bead, and the 2 pins of the last 5050RGB lamp bead are grounded.

4. The dimming circuit of the handle light and the knob light according to claim 3, characterized in that: The second driving module includes a chip SC92F7250, wherein pin 6 of the chip SC92F7250 is connected to pin 4 of the first 5050 RGB lamp bead, and pins 2 and 3 of the chip SC92F7250 are both connected to the main control module.

5. The dimming circuit of the handle light and the knob light according to claim 1, characterized in that: The dimming button is a touch button, and the button module includes a chip FTC334F.

6. The dimming circuit of the handle light and the knob light according to any one of claims 1 to 5, characterized in that: It also includes a plurality of button indication modules, which are connected to the main control module and correspond to the dimming buttons, and each button indication module includes an indicator light.

7. The dimming circuit of the handle light and the knob light according to any one of claims 1 to 5, characterized in that: It also includes a display driving module and a display module, and the main control module, the display driving module and the display module are connected in sequence.

8. The dimming circuit of the handle light and the knob light according to any one of claims 1 to 5, characterized in that: The main control module includes a chip SC95F7515P32R.

9. An oven, characterized in that: It comprises an oven body and a dimming circuit for a handle light and a knob light as described in any one of claims 1 to 8, wherein the oven body is provided with a handle and a knob, the RGB lamp included in the knob light module is arranged on the knob, and the RGB lamp included in the handle light module is arranged on the handle.

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