WO2015089691A1

WO2015089691A1 - Omnidirectional disinfection apparatus for hearing aid

Info

Publication number: WO2015089691A1
Application number: PCT/CN2013/089474
Authority: WO
Inventors: 徐炜; 徐斌; 吴秋麒
Original assignee: 苏州立人听力器材有限公司
Priority date: 2013-12-16
Filing date: 2013-12-16
Publication date: 2015-06-25

Abstract

An omnidirectional disinfection apparatus for a hearing aid comprises a housing (2) and a housing cover (4) in opening and closed connection with the housing (2). The housing cover (4) and the housing (2) form an accommodating cavity (6) for accommodating the hearing aid. The housing (2) is provided with at least one light-permeable separation plate (8) therein. The hearing aid is placed at one side of the light-permeable separation plate (8), and at least one ultraviolet light pipe (10) is disposed at the other side. By means of the short-distance high-intensity irradiation of ultraviolet light and arrangement of a specular reflection layer (12), ultraviolet light can be directly radiated and reflected to the hearing aid, and the radiation intensity and the radiation scope of ultraviolet light are increased, so that the omnidirectional disinfection apparatus has super-strong and thorough sterilization and disinfection efficacy.

Description

Omnidirectional disinfection device for hearing aids

Technical field

The present invention relates to a sterilizing device, and more particularly to an omnidirectional sterilizing device for a hearing aid. Background technique

Hearing aids are a tool that helps hearing-impaired people improve their hearing impairments and improve their ability to communicate with others. Most of the people wearing hearing aids are elderly people and people with disabilities. They are weak and have poor resistance. The hearing aids are used for a long time in the ear. Because they are contaminated with sweat and earwax, they are prone to bacteria and viruses. Health, therefore, it is extremely important to improve their health. Summary of the invention

The present invention overcomes the deficiencies of the prior art and provides a sterilized omnidirectional disinfection device for hearing aids.

In order to achieve the above object, the technical solution adopted by the present invention is: an all-round sterilizing device for a hearing aid, comprising a casing, a casing cover that is open-closed and connected to the casing, and the casing cover and the casing form The receiving cavity of the hearing aid is provided, and at least one light transmissive partition is disposed in the casing, the hearing aid is placed on one side of the light transmissive partition, and the other side is provided with at least one ultraviolet light pipe.

In a preferred embodiment of the invention, the omnidirectional disinfecting apparatus for the hearing aid further comprises the ultraviolet light emitting ultraviolet light having a wavelength of 200-280 nm.

In a preferred embodiment of the present invention, the omnidirectional disinfecting apparatus for the hearing aid further includes a venting hole disposed on the light transmissive partition, and the ultraviolet light emitting ultraviolet light having a wavelength of 160-200 nm.

In a preferred embodiment of the present invention, the omnidirectional disinfecting apparatus for the hearing aid further includes a specularly reflective layer disposed on at least one inner wall of the receiving cavity.

In a preferred embodiment of the invention, the omnidirectional disinfecting apparatus for the hearing aid further includes the ultraviolet tube disposed below the light transmissive partition.

In a preferred embodiment of the present invention, the omnidirectional disinfecting device for the hearing aid further includes the A safety switch is arranged in the housing, and is turned on or off by opening and closing of the cover.

In a preferred embodiment of the present invention, the omnidirectional disinfecting apparatus for the hearing aid further includes a venting hole disposed on the light transmissive partition, and a drying device disposed on the other side of the light transmissive partition.

In a preferred embodiment of the invention, the omnidirectional disinfecting apparatus for the hearing aid further comprises the drying apparatus comprising a power supply circuit electrically connected to each other, a heat generating component and a temperature collecting circuit.

In a preferred embodiment of the invention, the omnidirectional disinfecting apparatus for the hearing aid further includes the power circuit including a USB port.

In a preferred embodiment of the invention, the omnidirectional disinfecting apparatus for the hearing aid further comprises the temperature collecting circuit comprising a plurality of temperature sensors.

The invention solves the defects existing in the background art, and the invention provides the supersonic and thorough sterilization and disinfection effect under the illumination of 360° ultraviolet light by the arrangement of the transparent partition plate, without using any medicament, no It produces secondary pollution, and is easy to operate. It has the advantages of safety, high efficiency and greenness. The safety switch can prevent ultraviolet light from burning the eyes and skin, ensuring the safety of the user. The setting of the specular reflection layer increases the irradiation intensity of the ultraviolet light and Irradiation range, good sterilization effect, in addition, through the use of multiple patch PTC thermistors, dense array layout, hot spots, dense, thin, no dead angle, uniform heating, fast heating, and retain The advantages of PTC automatic temperature adjustment, good thermal insulation effect, strong drying effect on hearing aids, inhibiting the reproduction of bacteria, using single-chip control technology to achieve sub-area, time-segment alternate, crossover, superimposed intelligent heating, the whole process always maintains fever The component is energized and heated to continuously replenish the lost heat. Thermal dynamic balance, so the constant temperature process is stable, the temperature fluctuation is small, the temperature control precision is high, the real constant temperature is realized, and the reliability of the whole machine is high. It can also overcome the extreme temperature in winter and summer, the temperature difference is too large, and the thermal insulation performance of the whole machine cannot be overcome. The lack of consideration.

DRAWINGS

The invention will now be further described with reference to the drawings and embodiments.

Figure 1 is a schematic view showing the structure of a preferred embodiment of the present invention; Figure 2 is an internal front view of a preferred embodiment of the present invention;

Figure 3 is a schematic view showing the structure of a heat generating element according to a preferred embodiment of the present invention;

Figure 4 is a circuit diagram of a drying apparatus in accordance with a preferred embodiment of the present invention.

detailed description

The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, which are illustrated in a simplified schematic representation

As shown in FIG. 1 and FIG. 2, an all-round disinfection device for a hearing aid comprises a housing 2 and a cover 4 connected to the housing 2, and the cover 4 can be arranged to be transparent, and the cover 4 and The housing 2 is formed with a receiving cavity 6 for accommodating the hearing aid. The housing 2 is provided with at least one light transmissive partition 8 . The transparent transparent partition 8 can be made of quartz glass, calcium fluoride or the like, and the hearing aid is placed on the transparent partition. On one side of the eighth side, at least one ultraviolet light pipe 10 is disposed on the other side of the light transmissive partition 8.

Preferably, the ultraviolet light tube 10 emits ultraviolet light having a wavelength of 200 to 280 nm. Ultraviolet light with a wavelength of 200-280nm can disinfect the hearing aid. Especially the ultraviolet light with a center wavelength of 254nm is easily absorbed by the organism, and it acts on the DNA and RNA of the organism, causing it to be destroyed and causing the death of bacteria and viruses. High-intensity ultraviolet light can be sterilized in a short period of time, and it can be killed in only one second for the bacterial propagule. Ultraviolet light close-range high-intensity irradiation can kill the bacterial spores on the surface of the object. 99.9% or more And it has extremely strong sterilization effect on any bacteria and viruses. Of course, it is also preferable that the ultraviolet light tube 10 is an ultraviolet light tube capable of emitting ultraviolet light having a wavelength of 160-200 nm, and ultraviolet light having a wavelength of 160-200 nm can react with air to generate ozone, especially ultraviolet light having a center wavelength of 185 nm. The action of air produces ozone with strong oxidation, which changes and destroys the DNA, RNA, etc. of the microorganisms, destroying the metabolism and reproduction process of the bacteria, thereby killing the bacteria.

Preferably, at least one inner wall of the receiving cavity 6 is provided with a specular reflection layer 12, and the ultraviolet light can be directly radiated and reflected to the hearing aid, thereby improving the irradiation intensity and the irradiation range of the ultraviolet light, and the sterilization effect is good. Enter Preferably, the one-step specularly reflective layer 12 can be a lens, a metal mirror patch, a reflective film or a plated layer, the lens can be a glass mirror; and the metal mirror patch can be a stainless steel plate.

Further, the preferred ultraviolet tube 10 is disposed under the light transmissive partition 8, and the ultraviolet light emitted by the ultraviolet tube 10 can pass through the transparent partition 8 to sterilize the bottom of the hearing aid while passing the ultraviolet light through The specular reflection layer 12 radiates to the hearing aid, so that the hearing aid is under 360° illumination of ultraviolet light, and has superior and thorough sterilization and disinfection effects.

Preferably, the housing 2 is provided with a safety switch 13, which is turned on or off by the opening and closing of the cover 4. The safety switch 13 is designed to protect the eyes and skin from UV light and to protect the user's safety. Further preferably, the safety switch 13 is a Hall switch, and a magnet 14 can be disposed on the inner wall of the cover 4, and the magnet 14 is adjacent to the safety switch 13 when the cover 4 is closed, and the safety switch 13 cuts off the ultraviolet tube 10 when the cover 4 is opened. The power supply, the ultraviolet tube 10 is extinguished, thereby fully protecting the safety of the user and avoiding burning of the eyes and skin. The safety switch 13 is not limited to the Hall switch, and may be a pressure switch. The pressure switch may be disposed in the housing, and the pressure switch is contacted when the cover 4 is closed. When the cover 4 is opened, the pressure disappears and there is a pressure change. Turning on or off the ultraviolet light pipe 10.

As shown in FIG. 4, in order to inhibit the proliferation of bacteria, a venting hole 15 may be disposed on the transparent partition plate 8, and a drying device is disposed on the other side, and the drying device includes a power supply circuit 16, a main control circuit 18, and a temperature collecting circuit 20. The keying circuit 22, the reset circuit 24, and the drying circuit 26. Preferably, the ultraviolet light pipe 10 and the safety switch 13 are connected to the power supply circuit 16 and the main control circuit 18.

The power circuit 16 is supplied with +5V DC power from the adapter for powering each circuit. It includes a USB port for easy access to +5V from a computer or mobile phone charger. Diode VD acts as a polarity protector and C 1 is a filter capacitor. The anode of the diode VD is connected to the power pin of the USB port, the cathode of the diode VD is connected to the anode of the filter capacitor C1, and the cathode of the filter capacitor C1 is connected to the ground pin of the USB port.

The main control circuit 18 uses the ATmega8 single-chip U1 as the master MCU, and the 12匪z crystal oscillator G to satisfy the control speed and real-time performance. The temperature acquisition circuit 20 includes a plurality of temperature sensors, preferably the model number DS18B20, which is ST1-STn. The power supply pins GND of the STl-STn are connected together, the power input terminals Vcc are connected together and connected to the +5V DC power supply provided by the power supply circuit 20, and the digital signal input and output terminals DQ are connected together and connected to the PD2 port of the single chip U. Only one port line can be used for two-way communication between DS18B20 and single-chip U1, and multiple DS 18B20 temperature sensors can be connected on one bus to realize multi-point network temperature measurement and high temperature measurement accuracy. In the actual application, no external components are required, and A/D conversion is not required, and the digital temperature signal can be directly output. The circuit of this embodiment includes two DS18B20 temperature sensors ST1 and ST2. At this time, n=2, two temperature measuring points are set, but it is not limited to two temperature measuring points, and three, four, etc. may be set. DS 18B20 temperature sensor.

The keying circuit 22 includes SB1, SB1 - key multifunction. Press once, timing 2h, can be heated continuously for 2 hours; press twice, timing 4h, can be heated continuously for 4h; press three times, timing 6h, can be heated continuously for 6 hours. Set three times to one cycle, press the fourth time to enter the next cycle, press the fourth time as the timing 2h, press the fifth time as the timing 4h, press the sixth time as the timing 6h, and so on. Press and hold SB1 to set the cancel and shut down.

The reset circuit 24 includes C2 and R1, and the system is automatically reset upon power-on. At the beginning of power-on, just when the Vcc power supply is turned on, since the voltage on the capacitor C2 cannot be abrupt, the C2 voltage is equivalent to a short circuit at the instant of power-on, and the voltage of the Vcc power supply falls on R1. The PC6/RST port of U can reset the microcontroller as long as it meets the high level applied to RST for 24 oscillation cycles.

The drying circuit 26 comprises at least two sets of independently operating heating elements Rfz l-Rfzn, at least two transistors VTl-VTn, a plurality of heating elements of each group of heating elements being connected in parallel, n being a positive integer greater than or equal to 2, each set of heat One end of the parallel connection of the components is connected to the +5V DC power supply, and the other end is connected to the emitter of the corresponding triode. The base of each triode is connected to the main control circuit 18, and the collector is connected to the ground. Preferably, the drying circuit 26 of the embodiment comprises three sets of independently operating heating elements, three triodes VT1, VT2, VT3 respectively connected to the three sets of heating elements, and the three sets of heating elements are applied to the PCB board 28 in the housing 2. , The three sets of heating elements are arranged on the PCB board 28, and each set of heating elements is evenly distributed. The hot air emitted by the heating elements can go up along the venting holes 15, and the hearing aids are placed on the transparent partitions 8 to be dried. Preferably, the three sets of heating elements respectively comprise three groups of B and C. As shown in FIG. 3, the group A heating elements include five Rfz l , the group B heating elements include eight Rf z2 , and the group C heating elements include twelve Rfz3, 5 The Rfz l is connected in parallel with the +5V DC power supply, the other end is connected to the emitter of the triode VT1, the 8 Rfz2 is connected in parallel with the +5V DC power supply, the other end is connected to the emitter of the triode VT2, and the 12 Rfz3 are connected in parallel. The rear end is connected to the +5V DC power supply, and the other end is connected to the emitter of the triode VT3. The bases of the triodes VT1, VT2, and VT3 are respectively connected to the PB1 port, the PB2 port, and the PB3 port of the single chip U1, and the transistors VT1, VT2, and VT3 are connected. The collectors are all connected to the ground. The drying circuit 26 is provided with three heating zones, and the single-chip microcomputer issues commands to realize sub-period, sub-section alternate, crossover, superimposed heating, thereby keeping the temperature of the disinfecting device constant. The MCU issues the command, PB1 port, PB2 port, PB3 port low level makes the triode VT1, VT2, VT3 turn on, Rfz l, Rfz2, Rfz3 get electric heating; PB1 port, PB2 port, PB3 port high level, triode VT1, VT2, VT3 cut off, Rfzl, Rf z2, Rf z3 lose power and stop heating. Rfzl, Rf z2, and Rfz3 all use SMD PTC linear thermistors, dense array layout, hot spots, dense, thin, wide distribution, no dead angle, uniform heating, fast heating, due to patch The linear thermistor is made of PTC material with a positive temperature coefficient. When the thermistor is heated by current, the temperature rises, the resistance increases correspondingly, the current passing through is correspondingly reduced, and the heat generation is correspondingly reduced. It is lowered in a constant state and has the property of automatically regulating the temperature.

The sub-area divides the arrangement position of the heating elements into a plurality of areas; the time division divides the entire heating and drying process into several time periods.

Now take the timing 4h, three areas, three time periods as an example:

The sterilizing device starts to work at a fixed time until the temperature rises to the upper limit of the set temperature. The temperature rising process takes 20 minutes. Thereafter, the first time period of insulation is between 1 hour of regular operation; the second holding period is between 2 hours after the first holding period and 2 hours after the timing; the third period after the second holding period is the third time after the end of the period Insulation period. 2 is a schematic diagram of the division of the three regions of the present embodiment: there are five heating elements Rfz l in the A region, eight heating elements Rfz2 in the B region, and twelve heating elements Rfz3 in the C region. The above arrangement is based on the principle that the heating elements are evenly distributed and the heat is uniform. The heating element in zone A is at least because the A zone works during the first period of heat preservation, and the residual heat is the largest.

Sub-regional, sub-period alternating, crossover, superheating is a brand new intelligent heating. The more detailed the heating temperature of the area and the time zone, the more the combination of the area and the time period can be arbitrarily combined as needed.

The ultraviolet light pipe 10, the electronic ballast API, and the triode VT form a disinfection circuit 30, which is controlled by the PC3 port of the single chip U1. When the PC3 port is at a high level, the electronic ballast API illuminates the ultraviolet tube 10, and emits ultraviolet light for direct sterilization. The safety switch 13 outputs a signal to the PD3 port of the single chip U1 through the inverter IC to turn on or off the power supply of the ultraviolet light pipe 10.

Further, in order to facilitate the knowledge of the drying timing and the detection of the amount of power of the hearing aid, the display circuit 32 and the battery detecting circuit 34 may be provided.

The display circuit 32 employs a dot matrix liquid crystal module LCD to display characters, symbols and graphics. A. Time display: Timing setting time, divided into 2h, 4h, 6h _; timing start time, 24 hour system; instant time, 24 hour system, increment by second. B. Temperature display: Instant temperature. C. Power display: When the battery graphic is a space, the text indicates that the battery is invalid. When the battery graphic has a grid, the text display is underpowered; when the battery graphic has two grids, the text indicates that the battery is low; when the battery power is three grids, the text is displayed. Adequate power;

The battery detecting circuit 34 uses the analog-to-digital converter ADC inside the ATm _eg a8 microcontroller U1 to detect the level of the battery voltage to determine whether the battery is good or bad. The ATmegaS microcontroller provides a 6-channel successive approximation ADC. The four channels of ADC0-ADC3 provide 10-bit conversion accuracy. The ADC4 and ADC5 channels only provide 8-bit conversion accuracy. This circuit uses ADC0 to detect the level of the voltage. During the test, the battery is placed in the detecting recess 36 of the housing 2, and is pushed into contact with the pole piece (not shown) in the detecting groove 36. The pole piece has a positive electrode, a negative electrode, and a pole piece. The positive pole is connected to the PC0 port of the single chip U1, and the negative pole is grounded, so that the battery is good or bad. The test results are displayed by the LCD in graphics and text, divided into 4 states - When the battery graphic is a space, the text indicates that the battery is invalid. When the battery graphic has a grid, the text display is underpowered. When the battery graphic has two grids, the text indicates that the battery is low. When the battery is three grids full, the text indicates that the battery is fully charged.

work process:

The hearing aid is placed on the light-transmissive partition 8, and the power is turned on, and the system is automatically reset by power-on and initialized. Press the SB1 timer time selection button twice in succession, start timing, LCD display timing time 4h, timing start time XX: XX and instant time XX: XX increments by second. At the same time, the DS18B20 temperature sensor collects the temperature data and transmits the data from the bus to the single-chip U1 via the single-chip U1. Compared with the preset temperature, the result is far below the lower threshold, and the priority program is started. The PB1 port, PB2 port and PB3 output of the MCU are low. Level, drive all the heating zone of the drying circuit 26 to heat up at the same time, until the temperature data collected by the DS18B20 has reached the preset upper temperature threshold, the single-chip microcomputer U1 issues a command, and the PB2 port and the PB3 port output a high-level shutdown drying circuit 26 B heating zone and C heating zone. The whole machine enters the first holding period, and only the A heating zone performs compensation heating to keep the temperature constant. Into the second period of insulation, the single-chip microcomputer PB1 port output high-level shutdown A heating zone, PB3 port output low-level open C heating zone heating and insulation. Insulation enters the third period of the single-chip microcomputer PB3 port output high-level shutdown C heating zone, PB1 port, PB2 port output low level open A heating zone and B heating zone supplement heating until the end of 4h. At the same time, the secondary sterilization and disinfection are set in the whole process of heating, and the work is automatically started when entering the first holding period and the second holding period respectively, and the ultraviolet tube 10 emits ultraviolet light having a wavelength of 200-280 nm, and the generated ultraviolet light can be generated. The specular reflection layer 12 directly radiates and reflects to the hearing aid, and has a large irradiation intensity and a large irradiation range, and is completely sterilized and disinfected, and is automatically extinguished every ten minutes. In addition, when the cover 4 is opened, the safety switch 13 transmits the signal to the single-chip UL, and the single-chip microcomputer U1 is switched to the emergency interrupt program to cut off the power of the ultraviolet tube 10, and the ultraviolet tube 10 is extinguished, thereby fully protecting the user's safety.

If the temperature is lower than the preset temperature during the heating and drying process, the original heat preservation program will be automatically interrupted and the supplementary heating program will be preferentially entered until the temperature rises to the preset temperature, and the automatic withdrawal priority is added. The hot program resumes the insulation program. When it is detected above the preset temperature, the insulation program will be interrupted and the emergency program for cutting off the heating element supply will be given priority. When the temperature drops to the preset temperature, the emergency program will be automatically exited to resume the insulation process.

The above-described embodiments of the present invention are intended to be variously modified and modified without departing from the scope of the present invention. The technical scope of the present invention is not limited to the contents of the specification, and the technical scope must be determined in accordance with the scope of the claims.

Claims

乂不1” 安^

An omnidirectional sterilizing device for a hearing aid, comprising a housing, a housing cover that is open-closed to the housing, the housing and the housing forming a receiving cavity for receiving the hearing aid, wherein The housing is provided with at least one light transmissive spacer, the hearing aid is placed on one side of the transparent partition, and the other side is provided with at least one ultraviolet tube.

2. The omnidirectional disinfection apparatus for a hearing aid according to claim 1, wherein the ultraviolet light tube emits ultraviolet light having a wavelength of 200 to 280 nm.

3. The omnidirectional disinfection apparatus for a hearing aid according to claim 1, wherein: the light transmissive partition is provided with a venting hole, and the ultraviolet light tube emits ultraviolet light having a wavelength of 160-200 nm.

The omnidirectional sterilizing apparatus for a hearing aid according to any one of claims 1 to 3, characterized in that: at least one inner wall of the accommodating chamber is provided with a specular reflection layer.

The omnidirectional disinfection apparatus for a hearing aid according to any one of claims 1 to 3, wherein the ultraviolet tube is disposed below the light transmissive partition.

6. The omnidirectional sterilizing device for a hearing aid according to claim 1, wherein: a safety switch is disposed in the housing, and is turned on or off by opening and closing of the cover.

7. The omnidirectional disinfection apparatus for a hearing aid according to claim 1, wherein: the light transmissive partition is provided with a venting hole, and the other side of the light transmissive partition is further provided with a drying device.

8. The omnidirectional sterilizing apparatus for a hearing aid according to claim 7, wherein the drying means comprises a power supply circuit electrically connected to each other, a heat generating component, and a temperature collecting circuit.

9. The omnidirectional disinfection apparatus for a hearing aid according to claim 8, wherein: said power supply circuit comprises a USB port.

10. The omnidirectional disinfection device for a hearing aid according to claim 8, wherein - said temperature acquisition circuit comprises a plurality of temperature sensors.