CN220606119U

CN220606119U - Circuit for UV toothbrush disinfection lamp

Info

Publication number: CN220606119U
Application number: CN202321596271.9U
Authority: CN
Inventors: 陈杰禄; 李嘉玲
Original assignee: Dongguan Sunstrong Electric Machinery Co ltd
Current assignee: Dongguan Sunstrong Electric Machinery Co ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2024-03-15
Anticipated expiration: 2033-06-21

Abstract

The utility model provides a circuit for a UV toothbrush disinfection lamp, which relates to the field of toothbrushes, and can sense a control signal of long press or short press through a switch detection circuit, when the long press is detected by a timing/charging detection control circuit, the UV-LED lamp works through a PWM control circuit, when the short press is detected, the LED lamp component works through the PWM control circuit, and the voltage comparator is used for detecting whether the voltage is lower than 2.8V, when the voltage is lower than 2.8V, the voltage comparator is not conducted, and when the voltage is higher than 2.8V, the voltage comparator is conducted, so that the LED lamp switch driving circuit can work, the circuit can be driven by a single-section 1865 lithium battery, the USB/small-size solar panel can be charged, the battery overdischarge detection is detected by using the discharging control circuit, and the lighting or UV disinfection state is identified by the timing/charging detection control circuit by using 2 small-size light touch switches.

Description

Circuit for UV toothbrush disinfection lamp

Technical Field

The present application relates to the field of toothbrushes, and in particular to a circuit for a UV toothbrush disinfection lamp.

Background

The existing traditional UV lamp tube uses a glass type UV lamp tube, the high voltage and the low current are adopted, so the working voltage (steady-state working voltage) is generally about 1200-1800V, the traditional lamp tube driving circuit is shown in figure 1 through an inverter circuit, the direct-current high voltage rectified by 220V mains supply is inverted into high-voltage high-frequency alternating current of about 40KHz after passing through a triode half-bridge self-excitation, then the instantaneous high voltage is generated through resonance of an inductor L2 and a capacitor C5, the lamp tube (LP 1) is lightened, and after the lamp tube is lightened, the inductor L2 is used as a choke inductor to drive the lamp tube to work normally. But is bulky and inconvenient to use, and also causes a large increase in cost.

Disclosure of Invention

An object of the embodiment of the application is to provide a circuit for a UV toothbrush disinfection lamp, which can solve the technical problems of large circuit size and inconvenient use of the toothbrush disinfection lamp.

The embodiment of the application provides a circuit for a UV toothbrush disinfection lamp, which comprises a switch detection circuit, a timing/charging detection control circuit, a discharging control circuit, a voltage comparator, an LED lamp switch driving circuit, a timing control on/off level circuit, a PWM control circuit, a UV-LED lamp and an LED lamp component, wherein the switch detection circuit is electrically connected with the timing/charging detection control circuit, the discharging control circuit, the voltage comparator, the LED lamp switch driving circuit and the PWM control circuit are electrically connected in sequence, the discharging control circuit, the voltage comparator, the LED lamp switch driving circuit are electrically connected with the timing/charging detection control circuit, and the UV-LED lamp and the LED lamp component are electrically connected with the PWM control circuit respectively.

Preferably, the switch detection circuit comprises an illumination contact switch, a UV-LED tact switch, a first circuit on-off control circuit and a second circuit on-off control circuit, wherein the illumination contact switch is electrically connected with the first circuit on-off control circuit, the UV-LED tact switch is electrically connected with the second circuit on-off control circuit, and the first circuit on-off control circuit and the second circuit on-off control circuit are respectively electrically connected with the timing/charging detection control circuit.

Preferably, the discharging control circuit comprises a USB charging input port, a solar panel charging input port and a lithium battery charging management IC, wherein the USB charging input port and the solar panel charging input port are electrically connected with the lithium battery charging management IC.

Preferably, the voltage comparator includes a resistor R1, a resistor R2, and a field-effect transistor Q1, where a D pole of the field-effect transistor Q1 is connected to the third interface of the lithium battery charging management IC, a G pole of the field-effect transistor Q1 is connected to the switch detection circuit through the resistor R2, a D pole of the field-effect transistor Q1 is connected to the G pole of the field-effect transistor Q1 through the resistor R1, and an S pole of the field-effect transistor Q1 is connected to the LED lamp driving circuit.

Preferably, the LED lamp driving circuit includes a resistor R3, a resistor R4, a capacitor C1, a capacitor C3, and a capacitor E1, where one end of the capacitor C3 is grounded, the other end of the capacitor C3 is connected to a seventh interface of the timing/charging detection control circuit, one end of the resistor R3 and one end of the resistor R4 are both grounded to the other end of the capacitor C3, and the other end of the resistor R4 is connected to one end of the capacitor C1 and one end of the capacitor E1 respectively, and the other end of the capacitor C1 and the other end of the capacitor E1 are both grounded.

Preferably, the LED lamp assembly comprises at least two parallel LED lamps.

Preferably, the timing/charging detection control circuit is of the type OBMCU.

The utility model has the beneficial effects that:

the utility model provides a circuit for a UV toothbrush disinfection lamp, which comprises a switch detection circuit, a timing/charging detection control circuit, a discharging control circuit, a voltage comparator, an LED lamp switch driving circuit, a timing control on/off level circuit, a PWM control circuit, a UV-LED lamp and an LED lamp component, wherein the switch detection circuit is electrically connected with the timing/charging detection control circuit, the discharging control circuit, the voltage comparator, the LED lamp switch driving circuit and the PWM control circuit are electrically connected in sequence, the discharging control circuit, the voltage comparator and the LED lamp switch driving circuit are electrically connected with the timing/charging detection control circuit, the UV-LED lamp and the LED lamp component are respectively electrically connected with the PWM control circuit, the utility model can sense the control signal of long press or short press through the switch detection circuit, the timing/charging detection control circuit enables the UV-LED lamp to work through the PWM control circuit when the long press is detected, and enables the LED lamp component to work through the PWM control circuit when the short press is detected, the voltage comparator is used for detecting whether the voltage is lower than 2.8V, and is not conducted when the voltage is lower than 2.8V, and is conducted when the voltage is higher than 2.8V, so that the LED lamp switch driving circuit can work, the circuit can use a single-section 1865 lithium battery to drive, the USB/small-size solar panel can be charged, the discharge control circuit is used for detecting the overdischarge of the battery, and the 2 small-size light touch switches are used for realizing the identification of whether the LED lamp is in the illumination state or the UV disinfection state through the timing/charging detection control circuit, the manufacturing cost is lower.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a conventional lamp driving circuit;

FIG. 2 is a schematic diagram of a frame of the present utility model;

FIG. 3 is a flow schematic of the present utility model;

fig. 4 is a circuit diagram of the present utility model.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships that are conventionally put in use of the product of the application, are merely for convenience of description of the present application and simplification of description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

As shown in figure 1, the circuit for the UV toothbrush disinfection lamp comprises a switch detection circuit, a timing/charging detection control circuit, a discharging control circuit, a voltage comparator, an LED lamp switch driving circuit, a timing control on/off level circuit, a PWM control circuit, a UV-LED lamp and an LED lamp assembly, wherein the switch detection circuit is electrically connected with the timing/charging detection control circuit, the discharging control circuit, the voltage comparator, the LED lamp switch driving circuit and the PWM control circuit are electrically connected in sequence, the discharging control circuit, the voltage comparator and the LED lamp switch driving circuit are electrically connected with the timing/charging detection control circuit, the UV-LED lamp and the LED lamp assembly are respectively electrically connected with the PWM control circuit, the utility model can sense the control signal of long press or short press through the switch detection circuit, the timing/charging detection control circuit enables the UV-LED lamp to work through the PWM control circuit when the long press is detected, and enables the LED lamp component to work through the PWM control circuit when the short press is detected, the voltage comparator is used for detecting whether the voltage is lower than 2.8V, and is not conducted when the voltage is lower than 2.8V, and is conducted when the voltage is higher than 2.8V, so that the LED lamp switch driving circuit can work, the circuit can use a single-section 1865 lithium battery to drive, the USB/small-size solar panel can be charged, the discharge control circuit is used for detecting the overdischarge of the battery, and the 2 small-size light touch switches are used for realizing the identification of whether the LED lamp is in the illumination state or the UV disinfection state through the timing/charging detection control circuit, the manufacturing cost is lower.

As shown in fig. 4, in this embodiment, the switch detection circuit includes an illumination contact switch, a UV-LED tact switch, a first circuit on-off control circuit, and a second circuit on-off control circuit, where the illumination contact switch is electrically connected to the first circuit on-off control circuit, the UV-LED tact switch is electrically connected to the second circuit on-off control circuit, and the first circuit on-off control circuit and the second circuit on-off control circuit are respectively electrically connected to the timing/charging detection control circuit.

As shown in fig. 4, in particular, the present utility model can detect whether the corresponding UV-LED lamp, LED lamp assembly needs to be turned on or off by illuminating the contact switch, UV-LED tact switch.

As shown in fig. 3, the control flow chart of the utility model can detect whether the illumination contact switch and the UV-LED tact switch are pressed (more than 5 seconds are needed to be pressed), then detect the voltage of the battery, if the voltage reaches more than 2.8V, correspondingly turn on the UV-LED lamp and the LED lamp assembly, when the UV-LED lamp is turned on, the control flow chart is operated for 10s to turn off, and when the LED lamp assembly is turned on, the illumination contact switch is needed to be pressed again, the control flow chart is turned off.

As shown in fig. 4, in this embodiment, the discharging control circuit includes a USB charging input port, a solar panel charging input port, and a lithium battery charging management IC, where the USB charging input port and the solar panel charging input port are electrically connected to the lithium battery charging management IC; the voltage comparator comprises a resistor R1, a resistor R2 and a field effect transistor Q1, wherein the D electrode of the field effect transistor Q1 is connected with a third interface of the lithium battery charging management IC, the G electrode of the field effect transistor Q1 is connected with the switch detection circuit through the resistor R2, the D electrode of the field effect transistor Q1 is connected with the G electrode of the field effect transistor Q1 through the resistor R1, and the S electrode of the field effect transistor Q1 is connected with the LED lamp driving circuit; the LED lamp driving circuit comprises a resistor R3, a resistor R4, a capacitor C1, a capacitor C3 and a capacitor E1, wherein one end of the capacitor C3 is grounded, the other end of the capacitor C3 is connected with a seventh interface of the timing/charging detection control circuit, one end of the resistor R3 and one end of the resistor R4 are both grounded, the other end of the resistor R4 is respectively connected with one end of the capacitor C1 and one end of the capacitor E1, and the other end of the capacitor C1 and the other end of the capacitor E1 are both grounded.

As shown in fig. 4, specifically, b+1 in the figure is a USB charging input port, sol+1 belongs to a solar panel charging input port, AP5054H belongs to a lithium battery charging management IC, SW1/SW2 are respectively lighting and UV-LED tact switches, and PWM1 and PWM2 modes are respectively controlled; the diode D3, the field effect tube Q4, the resistor R1, the resistor R2, the field effect tube Q4, the resistor R11, the field effect tube Q1, the timing/charging detection control circuit U2 (p 0.5) and the illumination contact switch SW1 form a circuit on-off control circuit, and PWM signals are output by the timing/charging detection control circuit U2 pin1.7 to control the LED lamp assembly 2, so that the duty ratio is 100%, 50% and the turn-off control is realized; the LED lamp disinfection circuit comprises a diode D5, a diode, a resistor D6, a resistor R1, a resistor R2, a field effect tube Q4, a resistor R11, a field effect tube Q1, a timing/charging detection control circuit U2 (p 0.5) and a UV-LED tact switch SW2, wherein the timing/charging detection control circuit U2 pin0.0 outputs high level to light the UV-LED lamp for disinfection, and the UV-LED lamp is turned off after 10 seconds.

As shown in fig. 4, the resistor R3, the resistor R4, and the timing/charging detection control circuit U2 pin0.7 control the high and low voltages of the timing/charging detection control circuit U2 pin0.5 through the comparison operation result between the timing/charging detection control circuit and the internal reference voltage, so as to control the on-off states of the field effect transistor Q4 and the field effect transistor Q1.

As shown in fig. 4, in this embodiment, the LED lamp assembly includes at least two parallel LED lamps.

The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and variations may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A circuit for a UV toothbrush sanitizing lamp, characterized by: the LED lamp comprises a switch detection circuit, a timing/charging detection control circuit, a discharging control circuit, a voltage comparator, an LED lamp switch driving circuit, a timing control on/off level circuit, a PWM control circuit, a UV-LED lamp and an LED lamp component, wherein the switch detection circuit is electrically connected with the timing/charging detection control circuit, the discharging control circuit, the voltage comparator, the LED lamp switch driving circuit and the PWM control circuit are electrically connected in sequence, the discharging control circuit, the voltage comparator and the LED lamp switch driving circuit are electrically connected with the timing/charging detection control circuit, and the UV-LED lamp and the LED lamp component are electrically connected with the PWM control circuit respectively.

2. A circuit for a UV toothbrush sanitizing lamp as recited in claim 1, wherein: the switch detection circuit comprises an illumination contact switch, a UV-LED tact switch, a first circuit on-off control circuit and a second circuit on-off control circuit, wherein the illumination contact switch is electrically connected with the first circuit on-off control circuit, the UV-LED tact switch is electrically connected with the second circuit on-off control circuit, and the first circuit on-off control circuit and the second circuit on-off control circuit are respectively electrically connected with the timing/charging detection control circuit.

3. A circuit for a UV toothbrush sanitizing lamp as recited in claim 1, wherein: the discharging control circuit comprises a USB charging input port, a solar panel charging input port and a lithium battery charging management IC, wherein the USB charging input port and the solar panel charging input port are electrically connected with the lithium battery charging management IC.

4. A circuit for a UV toothbrush sanitizing lamp as set forth in claim 3, wherein: the voltage comparator comprises a resistor R1, a resistor R2 and a field effect tube Q1, wherein the D electrode of the field effect tube Q1 is connected with a third interface of the lithium battery charging management IC, the G electrode of the field effect tube Q1 is connected with the switch detection circuit through the resistor R2, the D electrode of the field effect tube Q1 is connected with the G electrode of the field effect tube Q1 through the resistor R1, and the S electrode of the field effect tube Q1 is connected with the LED lamp driving circuit.

5. A circuit for a UV toothbrush sanitizing lamp as recited in claim 1, wherein: the LED lamp driving circuit comprises a resistor R3, a resistor R4, a capacitor C1, a capacitor C3 and a capacitor E1, wherein one end of the capacitor C3 is grounded, the other end of the capacitor C3 is connected with a seventh interface of the timing/charging detection control circuit, one end of the resistor R3 and one end of the resistor R4 are both grounded, the other end of the resistor R4 is respectively connected with one end of the capacitor C1 and one end of the capacitor E1, and the other end of the capacitor C1 and the other end of the capacitor E1 are both grounded.

6. A circuit for a UV toothbrush sanitizing lamp as recited in claim 1, wherein: the LED lamp assembly includes at least two parallel LED lamps.

7. A circuit for a UV toothbrush sanitizing lamp as recited in claim 1, wherein: the model of the timing/charging detection control circuit is OBMCU.