CN211908437U

CN211908437U - Sterilizing cover for toilet

Info

Publication number: CN211908437U
Application number: CN202020780673.4U
Authority: CN
Inventors: 严樑; 郑佳艺; 张荣辉; 向潇潇
Original assignee: Xiamen Shirui Technology Co ltd
Current assignee: Xiamen Shirui Technology Co ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2020-11-10
Anticipated expiration: 2030-05-12

Abstract

The utility model relates to a bathroom accessory field. The utility model discloses a toilet sterilizing cover, which comprises a battery, a power switch circuit, a power circuit, a main control module, a drive circuit and a main UVC LED light source, wherein the battery is connected with the main control module through the power switch circuit, the power switch circuit and the drive circuit are connected with the main control module, the battery is connected with the main UVC LED light source through the drive circuit, the power switch circuit comprises a switch key S1, a PMOS tube Q4, a PMOS tube Q8 and an NMOS tube Q9, the source electrode of the PMOS tube Q4 is connected with the anode of the battery, the grid series resistance of the PMOS tube Q4 is connected with the anode of the battery, meanwhile, the switch key S1 is grounded, the drain of the PMOS tube Q4 is connected with the grid of the NMOS tube Q9, the grid of the PMOS tube Q8 is grounded through the NMOS tube Q9, the source of the PMOS tube Q8 is connected with the anode of the battery, the drain of the PMOS tube Q8 is connected with the input end of the power circuit, the source of the PMOS tube Q8 is connected with the grid of the PMOS tube Q8 through the resistor R25, and the control output end of the main control module is connected with the grid of the NMOS tube Q9.

Description

Sterilizing cover for toilet

Technical Field

The utility model belongs to bathroom accessory field specifically relates to a closestool lid that disinfects.

Background

The closestool is also called as a toilet bowl, is a bucket with a cover for relieving the bowels, and is widely applied to public places, hotels, various clubs and families at present, the closestool is commonly used by a plurality of people, dirt, wet surfaces and peculiar smell diffused in the air attached in the closestool provide conditions for breeding and infection of bacteria, so that the closestool brings convenience to life and brings great troubles and health hidden troubles to the life of people.

In order to solve the problems, a plurality of UVC (short wave ultraviolet) toilet sterilization covers are available on the market at present, and can conveniently perform ultraviolet sterilization on a toilet (including a toilet seat and the inside of the toilet), but when the existing UVC toilet sterilization covers are not used, a circuit is only simply in a low power consumption mode, and actually, current is generated, so that the electric quantity of a battery is continuously consumed, the sterilization use times are few (dozens of times), the standby time is short (dozens of days), frequent charging is needed, and the user experience is influenced.

Disclosure of Invention

An object of the utility model is to provide a closestool sterilization lid is used for solving the technical problem that above-mentioned exists.

In order to achieve the above object, the utility model adopts the following technical scheme: a toilet sterilizing cover comprises a battery, a power switch circuit, a power circuit, a main control module, a driving circuit and a main UVC LED light source, wherein the battery supplies power to the main control module after being converted by the power circuit through the power switch circuit, the power switch circuit and the driving circuit are respectively connected with the main control module, the input end of the driving circuit is connected with the battery, the output end of the driving circuit is connected with the main UVC LED light source, the power switch circuit comprises a switch key S1, a PMOS tube Q4, a PMOS tube Q8 and an NMOS tube Q9, the source electrode of the PMOS tube Q4 is connected with the anode of the battery, the grid series resistance of the PMOS tube Q4 is connected with the anode of the battery, meanwhile, the switch key S1 is grounded, the drain of the PMOS tube Q4 is connected with the grid of the NMOS tube Q9, the grid of the PMOS tube Q8 is grounded through the NMOS tube Q9, the source of the PMOS tube Q8 is connected with the anode of the battery, the drain of the PMOS tube Q8 is connected with the input end of the power circuit, the source of the PMOS tube Q8 is connected with the grid of the PMOS tube Q8 through the resistor R25, and the control output end of the main control module is connected with the grid of the NMOS tube Q9.

Further, the driving circuit is a constant current driving circuit.

The device further comprises a current acquisition circuit, a standby driving circuit and a standby UVC LED light source, wherein the current acquisition circuit is used for acquiring the current of the main UVC LED light source and transmitting the current to the main control module, the input end of the standby driving circuit is connected with the battery, the output end of the standby driving circuit is connected with the standby UVC LED light source, and the control end of the standby driving circuit is connected with the main control module.

Furthermore, the standby driving circuit is a constant current driving circuit.

Further, the main control module is realized by adopting a single chip microcomputer with the model number of STM32F 205.

Furthermore, the charging management circuit is further included, and the external power supply charges the battery through the charging management circuit.

Furthermore, the charging management circuit is implemented by a power management chip with model number BQ 24092.

Further, the battery is a rechargeable lithium battery.

Furthermore, the main UVC LED light source is composed of a plurality of UVC LED lamp beads with the light-emitting angle of 120 degrees.

Furthermore, the plurality of UVC LED lamp beads include the UVC LED lamp beads arranged in the corresponding U-shaped structure of the toilet seat and the UVC LED lamp beads located in the middle of the U-shaped structure.

The utility model has the advantages of:

the utility model discloses a design power switch circuit, make the utility model discloses when not using, the battery power is preserved to the at utmost to zero consumption, improves the number of times of using (improve to more than 200), and extension stand-by time (can reach more than 6 months), need not frequently to charge, has promoted user experience and has felt.

The utility model discloses be equipped with reserve UVC LED light source, the redundant design of UVC LED light source, when the system differentiates main UVC LED light source and has unusual, the automatic reserve UVC LED light source that launches guarantees the bactericidal effect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a circuit block diagram of an embodiment of the present invention;

FIG. 2 is a schematic diagram of a portion of a circuit according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a portion of a circuit according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a portion of a circuit according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a portion of a circuit according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a part of a circuit according to an embodiment of the present invention.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

As shown in fig. 1-6, a toilet sterilizing cover comprises a battery 3, a power switch circuit 2, a power circuit 10, a main control module 1, a driving circuit 4 and a main UVC LED light source 6, wherein the battery 3 supplies power to the main control module 1 after being converted by the power circuit 10 through the power switch circuit 2, control ends of the power switch circuit 2 and the driving circuit 4 are respectively connected with the main control module 1, an input end of the driving circuit 4 is connected with the battery 3, an output end of the driving circuit 4 is connected with the main UVC LED light source 6, and the driving circuit 4 is used for driving the main UVC LED light source 6 to work so as to perform ultraviolet sterilization on a toilet.

The power switch circuit 2 comprises a switch key S1, a PMOS tube Q4, a PMOS tube Q8 and an NMOS tube Q9, a source electrode series resistor R15 of the PMOS tube Q4 is connected with an anode BAT of the battery 3, a grid electrode of the PMOS tube Q4 is sequentially connected with a series resistor R10 and a resistor R9 which are connected with the anode BAT of the battery 3, meanwhile, the series resistor R12 and the switch key S1 are grounded, a drain electrode series resistor R16 of the PMOS tube Q4 is connected with a grid electrode of the NMOS tube Q9, and a drain electrode of the PMOS tube Q4 is also sequentially connected with a series resistor R16 and a resistor R18 which are grounded.

The grid of the PMOS transistor Q8 is connected in series with the resistor R27 and the NMOS transistor Q9 in sequence to the ground, the source of the PMOS transistor Q8 is connected to the positive electrode BAT of the battery 3, the drain of the PMOS transistor Q8 is connected to the input end of the Power circuit 10, the source of the PMOS transistor Q8 is connected to the grid of the PMOS transistor Q8 through the resistor R25, and a control output terminal Power _ Ctrl series resistor R17 of the main control module 1 is connected to the grid of the NMOS transistor Q9. More detailed circuit connections are shown in fig. 4 and 5, which will not be described in detail. The switch key S1 is turned on when pressed and turned off when released, and the switch key S1 may be implemented by a tact switch or the like.

Preferably, in this embodiment, the driving circuit 4 is a constant current driving circuit, so as to ensure that the UVC LED is stably used for a long time, the current does not change due to temperature change, the radiation energy is stable, and the sterilization effect is stable. Specifically, in this embodiment, the driving circuit 4 is implemented by using an LED driving chip U5 with model number TPS61040DBVR, and the specific circuit is shown in fig. 6, which is not described in detail. Of course, in other embodiments, the driving circuit 4 may also be implemented by using other existing constant current driving circuits.

Further, in this embodiment, the current collection circuit 7, the standby driving circuit 8, and the standby UVC LED light source 9 are further included, the current collection circuit 7 is configured to collect a current of the main UVC LED light source 6 and transmit the current to the main control module 1, and the specific circuit is shown in fig. 6, which is not described in detail.

The input end of the standby driving circuit 8 is connected with the battery 3, the output end of the standby driving circuit 8 is connected with the standby UVC LED light source 9, and the control end of the standby driving circuit 8 is connected with the main control module 1. When the current acquisition circuit 7 acquires that the current is abnormal, it indicates that the main UVC LED light source 6 is abnormal, if the lamp bead is in good order or in poor contact, the main control module 1 controls the driving circuit 4 to be closed, and the standby driving circuit 8 is started to drive the standby UVC LED light source 9 to work, so that the integral radiation dose is guaranteed to reach the standard.

In this embodiment, the spare driving circuit 8 and the driving circuit 4 have the same circuit structure and are easy to implement, but not limited thereto.

In this specific embodiment, the main control module 1 is implemented by using a single chip microcomputer U2 of the model STM32F205, which has high main frequency, strong performance and stable operation, and the specific circuit is shown in fig. 2, which is not described in detail.

In this embodiment, still include charge management circuit 5, external power passes through charge management circuit 5 and charges for battery 3, need not to change the battery, and it is convenient to use, improves user experience.

Preferably, in this embodiment, the charging management circuit 5 is implemented by using a power management chip U1 with a model number BQ24092, and the charging is performed in a constant voltage and constant current manner, so that when the battery voltage is low, the constant current charging is performed, the charging is stable, and when the voltage rises to a certain extent, the charging is automatically switched to the constant voltage charging, so as to ensure that the battery is fully charged while no overvoltage occurs, and improve the safety. Of course, in other embodiments, the charging management circuit 5 may also be implemented by using other existing charging management chips.

Preferably, in this embodiment, the battery 3 is a high-capacity rechargeable lithium battery, so as to increase the number of times of use and prolong the standby time, but not limited thereto.

In this embodiment, the main UVC LED light source 6 is formed by connecting a plurality of UVC LED lamp beads with a 120-degree light emitting angle in series, and has a large and uniform irradiation area, so as to better sterilize the toilet.

Furthermore, in this embodiment, a plurality of UVC LED lamp beads include UVC LED lamp beads arranged in a U-shaped structure corresponding to the toilet seat, so that irradiance is uniformly distributed on the seat, and the seat can be killed, and the UVC LED lamp beads located in the middle of the U-shaped structure are used for killing the inside of the toilet.

In this embodiment, the standby UVC LED light source 9 has the same structure as the main UVC LED light source 6, and is disposed beside the main UVC LED light source 6.

In this embodiment, the power circuit 10 includes a 5V power circuit and a 3.3V power circuit, and the specific circuit structure is shown in fig. 5, which is not described in detail.

The working process is as follows:

when ultraviolet sterilization is to be performed, the switch key S1 is pressed, the switch key S1 is turned on, the PMOS tube Q4 is turned on, the NMOS tube Q9 is driven to be turned on, the NMOS tube Q9 is turned on, the PMOS tube Q8 is driven to be turned on, the battery 3 supplies Power to the singlechip U2 after being converted by the Power circuit 10 through the PMOS tube Q8, the singlechip U2 is powered on and then controls the output end Power _ Ctrl to output a control signal to the grid electrode of the NMOS tube Q9, so that the PMOS tube Q8 is kept on and continuously supplies Power, the singlechip U2 controls the driving circuit 4 to work, the main UVC LED light source 6 is driven to work, the closestool is sterilized, and after the sterilization is completed, the control output end Power _ Ctrl of the singlechip U2 outputs a control signal to turn off the NMOS tube Q9, so that the PMOS tube Q8 is turned off, and the PMOS circuit has basically zero Power.

When the current acquisition circuit 7 detects that the current of the main UVC LED light source 6 is abnormal, the singlechip U2 controls the driving circuit 4 to stop working, controls the standby driving circuit 8 to work, drives the standby UVC LED light source 9 to work, disinfects the closestool, and ensures the sterilization effect.

The utility model discloses a design power switch circuit, make the utility model discloses when not using, the zero consumption basically, furthest preserves battery power, improves and uses the number of times (improve to more than 200), and extension stand-by time (can reach more than 6 months) need not frequently to charge, promotes user experience and feels.

The utility model discloses be equipped with reserve UVC LED light source, the redundant design of UVC LED light source, when the system differentiates main UVC LED light source and has the lamp pearl of damage, the automatic reserve UVC LED light source that launches guarantees the bactericidal effect.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A toilet bowl sterilization cover is characterized in that: the power supply comprises a battery, a power supply switch circuit, a power supply circuit, a main control module, a driving circuit and a main UVC LED light source, wherein the battery supplies power to the main control module after being converted by the power supply switch circuit through the power supply circuit, the power supply switch circuit and the driving circuit are respectively connected with the main control module, the input end of the driving circuit is connected with the battery, the output end of the driving circuit is connected with the main UVC LED light source, the power supply switch circuit comprises a switch key S1, a PMOS tube Q4, a PMOS tube Q8 and an NMOS tube Q9, the source electrode of the PMOS tube Q4 is connected with the anode of the battery, the grid electrode series resistance of the PMOS tube Q, meanwhile, the switch key S1 is grounded, the drain of the PMOS tube Q4 is connected with the grid of the NMOS tube Q9, the grid of the PMOS tube Q8 is grounded through the NMOS tube Q9, the source of the PMOS tube Q8 is connected with the anode of the battery, the drain of the PMOS tube Q8 is connected with the input end of the power circuit, the source of the PMOS tube Q8 is connected with the grid of the PMOS tube Q8 through the resistor R25, and the control output end of the main control module is connected with the grid of the NMOS tube Q9.

2. The toilet antiseptic cap of claim 1, wherein: the driving circuit is a constant current driving circuit.

3. The toilet antiseptic cap of claim 1, wherein: the current acquisition circuit is used for acquiring the current of the main UVC LED light source and transmitting the current to the main control module, the input end of the standby driving circuit is connected with the battery, the output end of the standby driving circuit is connected with the standby UVC LED light source, and the control end of the standby driving circuit is connected with the main control module.

4. A toilet antiseptic cover as claimed in claim 3, wherein: the standby driving circuit is a constant current driving circuit.

5. The toilet antiseptic cap of claim 1, wherein: the main control module is realized by adopting a single chip microcomputer with the model number of STM32F 205.

6. The toilet antiseptic cap of claim 1, wherein: the battery charging system further comprises a charging management circuit, and the external power supply charges the battery through the charging management circuit.

7. The toilet antiseptic cap of claim 6, wherein: the charging management circuit is realized by adopting a power management chip with the model number of BQ 24092.

8. The toilet antiseptic cap of claim 6, wherein: the battery is a rechargeable lithium battery.

9. The toilet antiseptic cap of claim 1, wherein: the main UVC LED light source is composed of a plurality of UVC LED lamp beads with the light-emitting angle of 120 degrees.

10. The toilet antiseptic cap of claim 9, wherein: a plurality of UVC LED lamp pearls are including arranging the UVC LED lamp pearl of the corresponding U type structure of toilet seat and the UVC LED lamp pearl that is located the middle of the U type structure.