WO2021184147A1

WO2021184147A1 - Deodorizing and sterilizing device for toilet

Info

Publication number: WO2021184147A1
Application number: PCT/CN2020/079440
Authority: WO
Inventors: 王�华
Original assignee: 王�华
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2021-09-23

Abstract

Disclosed is a deodorizing and sterilizing device for a toilet, the device comprising: a housing, a bonding clamping plate (1), a controller (U4), a photosensitive resistor (2) for generating a first control signal when light is detected, an angle sensing switch (3) for generating a second control signal when it is detected that the angle of the housing is greater than a preset value, and an ultraviolet LED (4), wherein the housing is clamped on the bonding clamping plate (1); the bonding clamping plate (1) is bonded to a toilet lid; the photosensitive resistor (2) and the ultraviolet LED (4) are both mounted on the lower surface of the housing; the controller (U4) is respectively connected to the photosensitive resistor (2), the angle sensing switch (3) and the ultraviolet LED (4); the angle sensing switch (3) is connected to the housing; and the controller (U4) activates the ultraviolet LED (4) when same receives the first control signal and the second control signal. According to the device, the ultraviolet LED is turned on by means of detecting the state of the toilet lid, such that the object surface is irradiated to directly kill various bacteria, viruses, parasites and other pathogens and decompose odorous molecules, thereby achieving the effects of sterilization, disinfection and deodorization and having high applicability.

Description

Toilet deodorizing and sterilizing device

Technical field

The utility model relates to the technical field of toilet sterilization and deodorization equipment, in particular to a toilet deodorization and sterilization device.

Background technique

Each of us goes to the toilet 6-8 times a day, about 2500 times a year. The toilet is the most frequently used place at home. Its sanitation is related to the health of everyone in the family. The number of bacteria on the inner wall of the toilet that has just been flushed is still as high as 100,000. The main bacteria in the toilet are: Escherichia coli and Staphylococcus aureus , Urethral bacteria, etc., so the toilet also needs to be sterilized.

technical problem

The disinfection and deodorization of toilets currently on the market are generally spray products. The actual sterilization effect is not good. It cannot directly kill all bacteria, viruses, parasites, and other pathogens, and the sterilization efficiency is relatively average. Some products are sterilization equipment that comes with ultraviolet lamps or toilets, which are inconvenient to operate during disinfection and sterilization. They have poor functionality and have certain limitations in use.

Technical solutions

The utility model provides a toilet deodorizing and sterilizing device to solve at least one of the above technical problems.

In order to solve the above problems, as one aspect of the present invention, a toilet deodorizing and sterilizing device is provided, which includes: a housing, an adhesive card, a controller, and a photosensitive member for generating a first control signal when light is detected. A resistor, an angle sensor switch for generating a second control signal when it is detected that the angle of the housing is greater than a predetermined value, and an ultraviolet LED, the housing is clamped on the adhesive card board, and the adhesive card The board is bonded to the toilet lid, the photosensitive resistor and the ultraviolet LED are both installed on the lower surface of the housing, the controller is respectively connected with the photosensitive resistor, the angle sensor switch, and the ultraviolet LED, the angle sensor switch Connected to the housing, the controller activates the ultraviolet LED when receiving the first control signal and the second control signal.

Preferably, a U-shaped card slot is provided on the adhesive card board, and the housing is detachably mounted in the U-shaped card slot.

Preferably, the housing includes an upper housing and a lower housing connected to each other.

Preferably, the adhesive card is adhered to the toilet lid by double-sided 3M glue.

Preferably, the ultraviolet LEDs include UVC deep ultraviolet LEDs and UVA ultraviolet LEDs.

Preferably, the toilet deodorizing and sterilizing device further includes a charging interface, a charging and discharging management chip, and a battery. The charging interface is connected to the battery through the charging and discharging management chip, and the battery is connected to the power supply of the controller. Pin connection.

Preferably, the toilet deodorizing and sterilizing device further includes a manual button connected to the first input pin of the controller, and the controller lights the ultraviolet LED when the manual button is detected to be pressed.

Preferably, the battery is connected to the ultraviolet LED through a boost constant current chip, and the controller is connected to a control pin of the boost constant current chip.

Preferably, the angle sensing switch is a ball type switch.

Beneficial effect

Due to the above technical solution, the utility model can detect the status of the toilet lid and turn on the ultraviolet LED to irradiate the surface of the object, directly kill various bacteria, viruses, parasites, and other pathogens, and decompose odor molecules to achieve sterilization. , Disinfection and deodorization effect, strong practicability.

Description of the drawings

Figure 1 schematically shows the front view of the present utility model;

Figure 2 schematically shows a schematic diagram of bonding a card board;

Figure 3 schematically shows a rear view of the adhesive card board;

Figure 4 schematically shows the first structural diagram of the housing;

Figure 5 schematically shows the second structural diagram of the housing;

Fig. 6 schematically shows a schematic diagram of the upper housing;

Figure 7 schematically shows a schematic diagram of the lower housing;

Figure 8 schematically shows a schematic diagram of the peripheral circuit of the controller;

Fig. 9 schematically shows a circuit diagram of the charging interface;

FIG. 10 schematically shows the circuit principle diagram of the charge and discharge management chip;

Fig. 11 schematically shows a schematic diagram of an ultraviolet LED driving circuit.

Fig. 12 schematically shows a schematic diagram of a photoresistor circuit.

Fig. 13 schematically shows a driving principle diagram of an angle-sensing switch.

Reference signs in the figure: 1. Adhesive card board; 2. Photoresistor; 3. Angle sensor switch; 4. Ultraviolet LED; 5. Upper housing; 6. Lower housing; 7. Charging interface; 8. Double-sided 3M glue.

Embodiments of the present invention

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

Aiming at the shortcomings of the prior art, the utility model provides a toilet deodorization and sterilization device to solve the toilet sterilization and deodorization problems, without replacing the toilet, and directly sticking the product on the toilet lid to achieve the effect of sterilization, disinfection and deodorization.

The toilet deodorizing and sterilizing device in the utility model includes: a housing, an adhesive card board 1, a controller U4, a photoresistor 2 for generating a first control signal when light is detected When the angle of the housing is greater than a predetermined value, the angle sensor switch 3 and the ultraviolet LED 4 generate the second control signal, the housing is clamped on the adhesive card 1, and the adhesive card 1 is adhered to the toilet cover , The photosensitive resistor 2 and the ultraviolet LED 4 are both installed on the lower surface of the housing, the controller U4 is respectively connected with the photosensitive resistor 2, the angle sensor switch 3, and the ultraviolet LED 4, the angle sensor switch 3 and The shell is connected.

The controller U4 activates the ultraviolet LED4 when receiving the first control signal and the second control signal, so that the photoresistor and the angle sensor switch are at the same time when the sunlight is not visible and the angle is 170-180 degrees (ie Level), the system will start. Since the utility model uses both a photosensitive resistor and an angle sensor switch for control, when the light is darker at night, it can avoid the problem that the LED will still light up by mistake when the toilet lid is opened when only the photosensitive resistor is used. When the toilet lid is at a horizontal 180 degree angle and the photoresistor does not detect light, the LED will be turned on, otherwise the LED will be turned off, thus improving safety.

Preferably, the adhesive card board 1 is provided with a U-shaped card slot, and the housing is detachably installed in the U-shaped card slot to facilitate removal or installation.

Preferably, the housing includes an upper housing 5 and a lower housing 6 connected to each other. Preferably, the adhesive card board 1 is adhered to the toilet lid by double-sided 3M glue 8. During installation, the adhesive card 1 is adhered to the toilet cover through the double-sided 3M glue 8 on the adhesive card 1, and the shell is inserted into the U-shaped card slot of the adhesive card 1.

In use, when the user closes the toilet lid, the photoresistor 2 does not detect light and generates the first control signal; when the user closes the toilet lid to a predetermined angle, the angle sensor switch 3 generates the second control signal Therefore, the first control signal and the second control signal are sent to the controller U4, and the controller U4 turns on the ultraviolet LED 4 for sterilization and disinfection after receiving the first control signal and the second control signal. Conversely, when the toilet lid is opened, the photoresistor 2 detects the light to generate the first light-off signal, or when the toilet lid is opened to a certain predetermined angle, the angle sensor switch 3 generates the second light-off signal, and the controller U4 then generates the second light-off signal. The two light-off signals turn off the UV LED4 for normal use by the user.

Preferably, the ultraviolet LED 4 includes a UVC deep ultraviolet LED and a UVA ultraviolet LED, and the present invention uses these two types of ultraviolet LEDs in combination to improve the sterilization effect. Among them, the wavelength of UVC deep ultraviolet LED is 240-280 nm, and the wavelength of UVA ultraviolet LED is 320-410 nm.

Preferably, the toilet deodorizing and sterilizing device further includes a charging interface 7, a charging and discharging management chip U3, and a battery BAT1. The charging interface 7 is connected to the battery BAT1 through the charging and discharging management chip U3, and the battery BAT1 is connected to the battery BAT1. The power supply pin of the controller U4 is connected. When in use, input 5V through the charging port 7 of J2 to pin 4 of U3, and charge the battery through pin 1 of LX. LED2 of pin 6 of U3 sends the signal to the controller U4, and the controller U4 reads the signal of U3 to LED7. Charged (red light) or fully charged (green light), INDET is to read whether the USB power source is inserted to determine whether it is an internal battery or an external power source.

Preferably, the toilet deodorizing and sterilizing device further includes a manual button K1 connected to the first input pin of the controller U4, and the controller U4 lights up when it detects that the manual button K1 is pressed.述UV LED4. When the manual button K1 is pressed, the controller U4 controls the boost constant current chip U1 and U2 through EN1 and EN2 to turn on the boost constant current chip to light up the UVC lamps of LED1-LED6 and LED10 to achieve the purpose of sterilization and deodorization. Among them, LED7/LED8 are indicators of working status.

Preferably, the battery BAT1 is connected to the ultraviolet LED4 through a boost constant current chip, and the controller U4 is connected to a control pin of the boost constant current chip. The boost constant current chips U1 and U2 boost the battery's 3.7V voltage to 5V-8V, and drive LED1-LED6 and LED10 to emit ultraviolet rays for sterilization.

Preferably, the angle sensing switch 3 is a ball type switch, for example, a model that can be activated only when the angle is about 170-180 degrees can be selected, and the other angles are all in the off state.

The above descriptions are only preferred embodiments of the present utility model, and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

A toilet deodorizing and sterilizing device, which is characterized by comprising: a housing, an adhesive card board (1), a controller (U4), a photoresistor (2) for generating a first control signal when light is detected, An angle sensor switch (3) and an ultraviolet LED (4) for generating a second control signal when it is detected that the angle of the housing is greater than a predetermined value, and the housing is clamped on the adhesive card board (1) Above, the adhesive card board (1) is bonded to the toilet lid, the photoresistor (2) and the ultraviolet LED (4) are both installed on the lower surface of the housing, and the controller (U4) is respectively connected with The photoresistor (2), the angle sensor switch (3), and the ultraviolet LED (4) are connected, the angle sensor switch (3) is connected with the housing, and the controller (U4) receives the The ultraviolet LED (4) is activated when the first control signal and the second control signal occur.
The toilet deodorizing and sterilizing device according to claim 1, characterized in that a U-shaped slot is provided on the adhesive card (1), and the housing is detachably installed in the U-shaped slot .
The toilet deodorizing and sterilizing device according to claim 1, characterized in that the housing comprises an upper housing (5) and a lower housing (6) connected to each other.
The toilet deodorizing and sterilizing device according to claim 1, characterized in that the adhesive card (1) is bonded to the toilet lid by double-sided 3M glue (8).
The toilet deodorizing and sterilizing device according to claim 1, wherein the ultraviolet LED (4) comprises a UVC deep ultraviolet LED and a UVA ultraviolet LED.
The toilet deodorization and sterilization device according to claim 1, wherein the toilet deodorization and sterilization device further comprises a charging interface (7), a charge and discharge management chip (U3) and a battery (BAT1), the charging interface ( 7) The charge and discharge management chip (U3) is connected to the battery (BAT1), and the battery (BAT1) is connected to the power supply pin of the controller (U4).
The toilet deodorization and sterilization device according to claim 6, wherein the toilet deodorization and sterilization device further comprises a manual button (K1) connected to the first input pin of the controller (U4), and The controller (U4) lights up the ultraviolet LED (4) when detecting that the manual button (K1) is pressed.
The toilet deodorizing and sterilizing device according to claim 6, wherein the battery (BAT1) is connected to the ultraviolet LED (4) through a boosted constant current chip, and the controller (U4) is connected to the The control pin of the constant current chip is connected.
The toilet deodorizing and sterilizing device according to claim 1, wherein the angle sensor switch (3) is a ball type switch.