CN114191595A

CN114191595A - Wearable air purifier

Info

Publication number: CN114191595A
Application number: CN202111334955.7A
Authority: CN
Inventors: 王志年; 宋文福
Original assignee: Wuxi Jinzer Technology Co ltd
Current assignee: Wuxi Jinzer Technology Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-03-18

Abstract

The invention discloses a wearable air purifier, which comprises a shell, wherein the shell consists of an upper negative oxygen ion generation bin and a lower circuit control bin, and a rope tying hole is formed in the shell; the negative oxygen ion generating bin comprises a catalyst bin and a negative oxygen ion generating device, and negative oxygen ions generated in the catalyst bin are exchanged with the outside air through the negative oxygen ion generating device; the circuit control bin comprises a main control circuit board, a charging circuit board, a rechargeable battery and a switch button, wherein the charging circuit board charges the rechargeable battery, the switch button is in contact connection with the rechargeable battery, and the main control circuit board is used for controlling the negative oxygen ion generating device to act and is connected with the charging circuit board. The air purifier is reasonable in structure and convenient to carry, can effectively purify air indoors and outdoors, generates small-particle negative oxygen ions meeting the requirements of human bodies through the electronic circuit, the special structure and the catalyst, reduces the harm of polluted air and viruses in the air to the human bodies, is beneficial to the livelihood, and effectively meets the market requirements.

Description

Wearable air purifier

Technical Field

The invention relates to an air purifier, in particular to a wearable air purifier.

Background

The novel coronavirus pneumonia (COVID-19) caused by the novel coronavirus SARS-CoV-2 has spread rapidly around the world and has led to a large-scale epidemic worldwide. Therefore, protection against chronic diseases of the respiratory tract, such as severe asthma and COPD, is advocated to reduce the risk of infection with SARS-CoV-2.

However, apart from allergic constitution and respiratory tract infection, an important influencing factor of chronic diseases of the respiratory tract such as severe asthma and COPD is an environmental factor. Outdoor air pollution is a major contributor to the health of the respiratory system of adults, children, and the elderly.

In view of the situation, various anti-haze masks appear on the market, but the masks cannot be generally stained with water, cannot be cleaned and are not attractive. Most of the masks are disposable, the masks need to be discarded after being worn for 4-10 hours, bacteria can be rapidly propagated after being worn for a long time, the higher the filtering efficiency of the masks is, the greater the respiratory resistance is, and the influence on the body is caused after the masks are worn for a long time. Therefore, the market is urgently required to develop and design a new outdoor air purification product. Besides the benefit of negative oxygen ion called "air vitamin" to human body, it also has the ability of eliminating smoke, removing dust and killing virus and germ. However, the existing air purifier has large volume and is inconvenient to carry, and the human body cannot be protected at any time and any place.

It is therefore desirable to provide a novel wearable air purifier to solve the above problems.

Disclosure of Invention

The invention aims to provide a wearable air purifier, which is convenient to carry and can provide an air purification function for colleagues.

In order to solve the technical problems, the invention adopts a technical scheme that: the wearable air purifier comprises a shell, wherein the shell consists of an upper negative oxygen ion generating bin and a lower circuit control bin, and a rope tying hole is formed in the shell;

the negative oxygen ion generating bin comprises a catalyst bin and a negative oxygen ion generating device, and negative oxygen ions generated in the catalyst bin are exchanged with the outside air through the negative oxygen ion generating device;

the circuit control bin comprises a battery bin, a main control circuit board, a charging circuit board, a rechargeable battery and a switch button, the charging circuit board charges the rechargeable battery arranged in the battery bin, the switch button is in contact connection with the rechargeable battery, and the main control circuit board is used for controlling the negative oxygen ion generating device to act and is connected with the charging circuit board.

In a preferred embodiment of the present invention, the negative oxygen ion generating device comprises a first reed, a second reed, and a carbon brush;

the carbon brush is connected with the second reed and is arranged at the vent hole of the negative oxygen ion generating bin;

the first reed is connected with the main control circuit board and arranged at one end far away from the second reed.

In a preferred embodiment of the present invention, the circuit control chamber further includes a USB interface, and the USB interface is connected to the charging circuit board.

In a preferred embodiment of the present invention, the housing is composed of an upper housing and a lower housing;

the upper parts of the negative oxygen ion generating bins of the upper shell and the lower shell are provided with rope tying holes for tying a rope/belt;

the bottom of the upper shell is provided with a USB jack, and the main control circuit board and the charging circuit board are arranged in a circuit control bin of the upper shell;

the bottom of the lower shell is provided with a button operation hole for operating a switch button, and the rechargeable battery is arranged in the circuit control bin of the lower shell.

Furthermore, the inner side surface of the lower shell, which is provided with the button operation hole, is provided with a clamping groove for placing a switch button and a spring sheet which is convenient for the switch button to be in contact connection with the rechargeable battery.

In a preferred embodiment of the present invention, the main control circuit board comprises a main control circuit, a vibration sensor circuit connected to the main control circuit, a key circuit, a battery voltage detection circuit, a power output control circuit, a transformer booster circuit, a voltage doubling rectifier circuit, an LED lamp indication circuit, and a charging voltage detection circuit; the power output control circuit, the transformer booster circuit and the voltage doubling rectifying circuit are sequentially connected, and the main control circuit comprises a main control chip U1.

Furthermore, the battery voltage detection circuit comprises resistors R1 and R2, one end of the resistor R1 is connected to the 1 st pin of the main control chip and the dc voltage VDD, one end of the resistor R2 is connected to the 3 rd pin of the main control chip, and the other end of the resistor R1 is connected to the 2 nd pin of the main control chip after being connected in parallel to the other end of the resistor R2.

Furthermore, the shock sensor circuit comprises a shock sensor ZD1 and a resistor R6, wherein one end of the shock sensor ZD1 is connected with the 6 th pin of the main control chip U1 after being connected in parallel with one end of the resistor R6, and the other end of the resistor R6 is connected with a direct-current voltage VDD.

Furthermore, the power output control circuit comprises resistors R3, R4 and an N-channel MOS tube Q1, one end of the resistor R3 is connected with the 7 th pin of the main control chip U1, the other end of the resistor R3 is connected with one end of the resistor R4 and the grid of the N-channel MOS tube Q1 in parallel, and the source electrode of the N-channel MOS tube Q1 is connected with the ground, and the drain electrode of the N-channel MOS tube Q1 is connected with the transformer boosting circuit.

Further, the charging circuit board comprises a power management circuit, the power management circuit comprises a power management chip U2, a USB interface, a capacitor C1, a resistor R8 and a battery BT1, the USB interface, the charging voltage detection circuit and the capacitor C1 are all connected with a 4 th pin of the power management chip U2, one end of the resistor R8 is connected with a 6 th pin of the power management chip U2, and the battery BT1 is connected with a direct-current voltage VDD.

The invention has the beneficial effects that: the air purifier is reasonable in structure and convenient to carry, can effectively purify air indoors and outdoors, generates small-particle negative oxygen ions meeting the requirements of human bodies through the electronic circuit, the special structure and the catalyst, reduces the harm of haze, PM2.5, automobile exhaust and other polluted air and viruses in the air to the human bodies, is beneficial to the livelihood, and effectively meets the market requirements.

Drawings

FIG. 1 is a schematic perspective view of a wearable air purifier according to the present invention;

FIG. 2 is one of the exploded schematic views of the wearable air purifier;

FIG. 3 is a second exploded view of the wearable air purifier;

FIG. 4 is a schematic structural view of the circuit control chamber of the lower housing;

FIG. 5 is a block circuit diagram of the wearable air purifier;

FIG. 6 is a schematic circuit diagram of the wearable air purifier;

fig. 7 is a circuit configuration diagram of the charging circuit board.

The parts in the drawings are numbered as follows: 1. rope tying hole, 101, square groove, 102, round hole, 2, upper housing, 3, USB jack, 4, main control circuit board, 5, USB interface, 6, switch button, 7, battery compartment, 8, button operation hole, 9, lower housing, 10, catalyst compartment, 11, rechargeable battery, 12, first reed, 13, second reed, 14, carbon brush, 15, negative oxygen ion generation compartment, 16, circuit control compartment, 17, rechargeable circuit board, 18, draw-in groove, 19, shell fragment.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

Referring to fig. 1, an embodiment of the present invention includes:

a wearable air purifier comprises a shell, wherein the shell is internally provided with an upper negative oxygen ion generation cabin 15 and a lower circuit control cabin 16. The shell consists of an upper shell 2 and a lower shell 9, and rope tying holes 1 for tying a hanging rope/belt are arranged at the upper parts of the negative oxygen ion generating bins 15 of the upper shell 2 and the lower shell 9. Specifically, the rope tying hole 1 is designed to be a square groove 101 and a round hole 102 perpendicular to the square groove 101, and the hanging rope is firstly tied at the rope end after entering the square groove 101 through the round hole 102, so that the rope cannot be separated from the shell. The air purifier can also be made into a watch type and worn on the wrist, and is convenient to carry.

The negative oxygen ion generating bin 15 comprises a catalyst bin 10 and a negative oxygen ion generating device, wherein a catalyst is injected into the catalyst bin 10, and the catalyst is used for generating small-particle negative oxygen ions and comprises high-specific-surface-area substances such as zeolite, activated carbon and the like. The negative oxygen ions generated in the catalyst container 10 are exchanged with the outside air by the negative oxygen ion generating device. The circuit control bin 16 comprises a battery bin 7, a main control circuit board 4, a charging circuit board 17, a charging battery 11 and a switch button 6, wherein the charging circuit board 17 charges the charging battery 11 arranged in the battery bin 7, the switch button 6 is in contact connection with the charging battery 11, and the main control circuit board 4 is used for controlling the action of the negative oxygen ion generating device and is connected with the charging circuit board 17.

With reference to fig. 2 and 3, the main control circuit board 4 and the charging circuit board 17 are disposed in the circuit control chamber 16 of the upper casing 2; the bottom of the upper shell 2 is provided with a USB jack 3 (namely a charging power jack), the inside of the upper shell is provided with a USB interface 5, and the USB interface 5 is connected with a charging circuit board 17. A negative oxygen ion generating device is arranged in a negative oxygen ion generating bin 15 of the upper shell 2, the negative oxygen ion generating device comprises a first reed 12, a second reed 13 and a carbon brush 14, the carbon brush 14 is connected with the second reed 13 and is arranged at a vent of the negative oxygen ion generating bin 15, and the carbon brush is a discharge electrode; the first reed 12 is connected with the PORT end of the main control circuit board 4 and is arranged at one end far away from the second reed 13.

The circuit control chamber 16 of the lower shell 9 is a battery chamber 7, and a rechargeable battery 11 is arranged in the battery chamber 7. Preferably, the rechargeable battery 11 is a rechargeable lithium battery. A button operation hole 8 is provided in the bottom of the lower case 9 for operating the switch button 6. Preferably, the switch button 6 is a membrane button. Referring to fig. 4, a slot 18 for placing a membrane button and a spring plate 19 for facilitating the contact connection between the switch button 6 and the rechargeable battery 11 are disposed on the inner side surface of the button operation hole 8 disposed at the bottom of the lower case 9. The membrane button can be operated by a needle or a toothpick through the button operation hole 8, and the switch button 6 is electrically connected with the rechargeable battery 11. When the power is started for the first time, the power is turned off according to 3 seconds when the power is not used for a long time or the transportation time is long, and the power enters a low power consumption state.

The following specifically describes the circuit structure of the air purifier:

referring to fig. 5, the main control circuit board 4 includes a main control circuit, a vibration sensor circuit connected to the main control circuit, a key circuit, a battery voltage detection circuit, a power output control circuit, a transformer booster circuit, a voltage doubling rectification circuit, an LED lamp indication circuit, and a charging voltage detection circuit; the power output control circuit, the transformer booster circuit and the voltage doubling rectifying circuit are sequentially connected. The charging circuit board 17 includes a power management circuit for charging the rechargeable lithium battery.

Referring to fig. 6, the circuit components and their connections are shown. The main control circuit comprises a main control chip U1, and preferably, the model of the main control chip U1 is JZ8P 2605.

The key circuit consists of a button S1 and a 4 th pin of a main control chip U1. And after the power-on, the long press S1 is longer than 2 seconds, the system starts to work, and the system outputs high voltage at the moment. If the system is to be deactivated or transported, the long press S1 turns off the system, at which time the shock signal is masked.

The battery voltage detection circuit comprises resistors R1 and R2, one end of the resistor R1 is connected with the 1 st pin of the main control chip and the direct-current voltage VDD, one end of the resistor R2 is connected with the 3 rd pin of the main control chip, and the other end of the resistor R1 is connected with the 2 nd pin of the main control chip after being connected with the other end of the resistor R2 in parallel. The purpose of this design is to save power, i.e. the connection of R2 at pin 3 of the main control chip is for power saving. A monitoring program is designed in software of the main control chip U1, when the voltage of the lithium battery needs to be detected, the 3 rd pin of the main control chip is placed on the ground, when the voltage of the battery is lower than 3.2V, the 5 th pin of the main control chip outputs a signal to the LED lamp prompting circuit, the LED lamp D3 flickers to prompt the battery to be charged, and meanwhile, the high voltage of the system stops working.

The vibration sensor circuit comprises a vibration sensor ZD1 and a resistor R6, one end of the vibration sensor ZD1 is connected with the 6 th pin of the main control chip U1 after being connected with one end of the resistor R6 in parallel, and the other end of the resistor R6 is connected with a direct-current voltage VDD. The high voltage can work for 5 minutes as long as the vibration signal is available, and if no vibration signal exists after 5 minutes, the high voltage stops working.

The power output control circuit comprises resistors R3, R4 and an N-channel MOS tube Q1, one end of the resistor R3 is connected with the 7 th pin of the main control chip U1, the other end of the resistor R3 is connected with one end of the resistor R4 and the grid of the N-channel MOS tube Q1 in parallel, and the source electrode of the N-channel MOS tube Q1 is connected with the ground, and the drain electrode of the N-channel MOS tube Q1 is connected with the transformer boosting circuit.

The transformer boosting circuit is composed of a resistor R5, capacitors C2, C3 and a transformer T1, and when Q1 works, high-voltage output exists at the secondary side of the transformer T1.

The voltage-multiplying rectification circuit consists of diodes D1 and D2, a resistor R7, a capacitor C4 and a capacitor C5, and the secondary voltage of the transformer T1 is rectified by the voltage-multiplying rectification circuit and then outputs negative high voltage.

The LED lamp indicating circuit consists of an LED lamp D3, a resistor R9 and a No. 5 pin of a main control chip U1, and the LED lamp D3 is arranged on the charging circuit board 17, as shown in figure 7. When the system has high-voltage output, the LED lamp D3 lights once every 3 seconds to prompt the system to work; when the system detects that the voltage of the lithium battery is lower than 3.2V, the LED lamp D3 flickers to prompt the lithium battery to be charged.

The charging voltage detection circuit consists of resistors R10 and R11 and a 5 th pin of a main control chip U1 and is used for detecting whether the adapter is inserted or not by the main control circuit board. When the main control chip U1 detects that the adapter is connected, namely detects the high level, the system stops working, and the high voltage is closed.

The power management circuit comprises a power management chip U2, a USB interface, a capacitor C1, a resistor R8 and a battery BT1, wherein the USB interface, the charging voltage detection circuit and the capacitor C1 are all connected with a pin 4 of the power management chip U2, one end of the resistor R8 is connected with a pin 6 of the power management chip U2, and the battery BT1 is connected with a direct-current voltage VDD. Preferably, the model of the power management chip U2 is AP 5056. When the USB interface is connected with the adapter, the power management circuit charges the battery BT1, and when the voltage of the battery reaches 4.2V, the charging is stopped.

The circuit principle of the air purifier is as follows:

(1) after the power is on, the main control starts to work according to S1, the 7 th pin of the main control chip U1 outputs square waves, Q1 works, after the signals are boosted by a transformer T1, a voltage doubling circuit consisting of capacitors C4, C5, diodes D1, D2 and a resistor R7 rectifies the signals into negative high voltage, and the negative high voltage is output by a PORT end.

(2) The 2 nd pin detection lithium cell voltage VCC of master control chip U1 is 3.2V, if be less than 3.2V, the system stop work, and master control chip U1's the 5 th pin output signal, LED lamp D3 scintillation suggestion are for lithium cell charging.

(3) Because of wearing the application, vibration sensor ZD1 detects whether there is a signal in the system, if there is a vibration signal to say that the system is along with human motion, there is high-voltage output this moment, and the circuit work. When the high-voltage circuit works for 5 minutes and no vibration signal indicates that the system is in a static state (the purifier is taken off or a user is in a sleep state), the high-voltage circuit stops working. The system works only when the shock signal is high-voltage, and the design aims to avoid frequent button pressing and prevent the battery from being discharged due to forgetting to shut down.

The thin film button is operated by a needle or a toothpick after the thin film button is started for the first time through the button operation hole 8, negative high voltage is output by the main control circuit board after the thin film button is started, the first reed 12 receives high voltage output, and the energy of a high-voltage electric field is transmitted to the second reed 12 through the catalyst bin 10. When negative high voltage exists between the first reed 12 and the second reed 13, a strong electric field is generated between the two reeds (how the strong electric field is generated), oxygen in the air is ionized into negative ion oxygen, and small-particle negative oxygen ions are generated through catalysis of the catalyst. When the portable power supply is not used for a long time or is transported, the portable power supply can be turned off by pressing the switch button for 3 seconds, and then enters a low power consumption state.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A wearable air purifier is characterized by comprising a shell, wherein the shell consists of an upper negative oxygen ion generation bin and a lower circuit control bin, and a rope tying hole is formed in the shell;

2. The wearable air purifier of claim 1, wherein the negative oxygen ion generating device comprises a first reed, a second reed, a carbon brush;

3. The wearable air purifier of claim 1, wherein the circuit control cabin further comprises a USB interface, and the USB interface is connected with the charging circuit board.

4. The wearable air purifier of claim 1, wherein the housing is comprised of an upper housing and a lower housing;

5. The wearable air purifier as claimed in claim 4, wherein the inner side of the lower casing having the button operation hole is provided with a slot for placing the switch button and a spring plate for facilitating contact connection between the switch button and the rechargeable battery.

6. The wearable air purifier of claim 1, wherein the master control circuit board comprises a master control circuit, a shock sensor circuit connected with the master control circuit, a key circuit, a battery voltage detection circuit, a power output control circuit, a transformer boost circuit, a voltage doubling rectification circuit, an LED lamp indication circuit, and a charging voltage detection circuit; the power output control circuit, the transformer booster circuit and the voltage doubling rectifying circuit are sequentially connected, and the main control circuit comprises a main control chip U1.

7. The wearable air purifier of claim 6, wherein the battery voltage detection circuit comprises resistors R1 and R2, one end of the resistor R1 is connected to the 1 st pin of the main control chip and the DC voltage VDD, one end of the resistor R2 is connected to the 3 rd pin of the main control chip, and the other end of the resistor R1 is connected to the 2 nd pin of the main control chip after being connected in parallel with the other end of the resistor R2.

8. The wearable air purifier of claim 6, wherein the vibration sensor circuit comprises a vibration sensor ZD1 and a resistor R6, one end of the vibration sensor ZD1 is connected in parallel with one end of the resistor R6 and then connected with the 6 th pin of the main control chip U1, and the other end of the resistor R6 is connected with a DC voltage VDD.

9. The wearable air purifier of claim 6, wherein the power output control circuit comprises resistors R3, R4 and an N-channel MOS transistor Q1, one end of the resistor R3 is connected with the 7 th pin of the main control chip U1, the other end of the resistor R3 is connected with one end of the resistor R4 and the grid of the N-channel MOS transistor Q1 in parallel, the source of the N-channel MOS transistor Q1 is grounded, and the drain of the N-channel MOS transistor Q1 is connected with the transformer boosting circuit.

10. The wearable air purifier of claim 6, wherein the charging circuit board comprises a power management circuit, the power management circuit comprises a power management chip U2, a USB interface, a capacitor C1, a resistor R8 and a battery BT1, the USB interface, the charging voltage detection circuit and the capacitor C1 are all connected with a 4 th pin of the power management chip U2, one end of the resistor R8 is connected with a 6 th pin of the power management chip U2, and the battery BT1 is connected with a direct current voltage VDD.