WO2015089698A1 - 用于助听器的消毒干燥装置 - Google Patents

用于助听器的消毒干燥装置 Download PDF

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Publication number
WO2015089698A1
WO2015089698A1 PCT/CN2013/089506 CN2013089506W WO2015089698A1 WO 2015089698 A1 WO2015089698 A1 WO 2015089698A1 CN 2013089506 W CN2013089506 W CN 2013089506W WO 2015089698 A1 WO2015089698 A1 WO 2015089698A1
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WO
WIPO (PCT)
Prior art keywords
hearing aid
ultraviolet light
housing
disinfecting
heat generating
Prior art date
Application number
PCT/CN2013/089506
Other languages
English (en)
French (fr)
Inventor
徐炜
徐斌
吴秋麒
Original Assignee
苏州立人听力器材有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州立人听力器材有限公司 filed Critical 苏州立人听力器材有限公司
Priority to PCT/CN2013/089506 priority Critical patent/WO2015089698A1/zh
Publication of WO2015089698A1 publication Critical patent/WO2015089698A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet radiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/20—Targets to be treated
    • A61L2202/21—Pharmaceuticals, e.g. medicaments, artificial body parts
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/17—Hearing device specific tools used for storing or handling hearing devices or parts thereof, e.g. placement in the ear, replacement of cerumen barriers, repair, cleaning hearing devices

Definitions

  • the invention relates to a disinfecting and drying device, in particular to a disinfecting and drying 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. Moreover, in the course of use, hearing aids are inevitably exposed to moisture from the air and moisture in the ear, so in daily maintenance work, removing moisture is an indispensable measure for the drying of hearing aids. The method is to place the hearing aid in a container with a built-in desiccant.
  • the desiccant contains carcinogens, which poses a potential risk of seriously damaging the health of the user; at the same time, the desiccant product contains fine debris. Will enter the hearing aid and cause blockage, affecting the life of the hearing aid.
  • the upper and lower limits In addition, in the field of heating and constant temperature, it is common to set the upper and lower limits. When heating to the upper limit, the heating is stopped, and the heating is stopped. When the temperature drops to the lower limit, the heating is started again. In this cycle, it is obvious that the constant temperature process is not stable. The temperature fluctuates greatly and the temperature control accuracy is not high.
  • the invention overcomes the deficiencies of the prior art and provides a disinfecting and drying device for a hearing aid with simple structure, thorough sterilization and stable constant temperature process.
  • a disinfecting and drying 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 a housing a receiving cavity of the hearing aid, a sterilizing device and a drying device are disposed in the housing, the sterilizing device comprising at least one set of first ultraviolet tubes and at least one set of second ultraviolet tubes, the first ultraviolet tubes are emitted Ultraviolet light having a wavelength of 200-280 nm, and the second ultraviolet light tube emitting ultraviolet light having a wavelength of 160-200 nm.
  • the drying device includes at least two sets of independently operating heat generating units, and the heat generating unit includes a heat generating component electrically connected to each other, a power supply circuit, and a main control circuit.
  • the disinfecting and drying apparatus for the hearing aid further includes a light-transmitting partition in the casing, the receiving cavity and the first ultraviolet light pipe and the second ultraviolet light pipe. At least one component is listed on both sides of the light transmissive separator.
  • the disinfecting and drying apparatus for the hearing aid further includes a safety switch disposed in the housing, and the opening and closing of the housing cover is performed to be turned on or off.
  • the disinfecting and drying apparatus for the hearing aid further comprises a specularly reflective layer on at least one inner wall of the receiving cavity.
  • the sterilizing and drying apparatus for the hearing aid further includes a partition having a vent hole in the casing, and the accommodating chamber and the drying device are arranged on both sides of the partition.
  • the disinfecting and drying apparatus for the hearing aid further comprises a different number of heating elements in the respective sets of firing cells.
  • the sterilization and drying apparatus for the hearing aid further comprises a uniform distribution of the heat generating elements in each of the sets of heat generating units.
  • the disinfecting and drying apparatus for the hearing aid further comprises the heat generating elements of the respective sets of heat generating units being spaced apart from each other.
  • the disinfecting and drying apparatus for the hearing aid further includes the heat generating unit further comprising a photocoupler connected to the main control circuit and a bidirectional thyristor connected to the photocoupler. To control the conduction or disconnection of the heating element.
  • the disinfecting and drying apparatus for the hearing aid further includes a temperature collecting circuit, the temperature collecting circuit includes a plurality of temperature sensors, and the output ends of the plurality of temperature sensors are connected to the The main control circuit is connected.
  • the present invention solves the deficiencies in the prior art, and the present invention passes the close proximity of 254 nm ultraviolet light.
  • the specular reflection layer is provided so that the ultraviolet light can be directly radiated and reflected to the hearing aid, enhancing the irradiation intensity of the ultraviolet light and expanding the ultraviolet light.
  • the illumination range of the light, the setting of the light-transmissive partition plate makes the hearing aid under the illumination of 360 ° of ultraviolet light, and has super strong and thorough sterilization and disinfection effect under multiple action, without using any medicine, no secondary pollution will occur.
  • the operation is simple and convenient, and has the advantages of safety, high efficiency and greenness.
  • the dense array layout has many hot spots, dense and fine, no dead angle, uniform heat generation, and temperature rise.
  • the component is energized and heated to continuously replenish the lost heat to achieve thermal operation. Balanced state, 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 taken into consideration. Insufficient.
  • 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
  • FIG. 3 is a schematic structural view of a heat generating component partition according to a preferred embodiment of the present invention.
  • FIG. 4 is a circuit diagram of a preferred embodiment of the present invention.
  • an electronic dryer for a hearing aid comprises a housing 2 and a cover 4 which is open-closed to the housing 2.
  • the cover 4 can be arranged to be transparent, and the cover 4 and the cover can be arranged.
  • Body 2 forms a hearing aid
  • the accommodating chamber 6 is provided with a sterilizing device and a drying device.
  • the sterilizing device comprises at least one set of first ultraviolet tubes 8 and at least one set of second ultraviolet tubes 10, and the first ultraviolet tube 8 emits a wavelength of 200- 280 nm ultraviolet light, the second ultraviolet light tube 10 emits ultraviolet light having a wavelength of 160-200 nm, the drying device comprises at least two sets of independently operating heat generating units, and the heat generating unit comprises a heating element electrically connected to each other, a power supply circuit 12 and a main control circuit 14.
  • 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. Ultraviolet light with a wavelength of 160-200 nm can react with air to generate ozone.
  • Especially ultraviolet light with a center wavelength of 185 nm reacts with air to produce ozone with strong oxidation, which changes and destroys microbial DNA, RNA, etc., and causes bacterial metabolism and The breeding process is destroyed, killing bacteria.
  • the double bactericidal action of the first ultraviolet light pipe 8 and the second ultraviolet light pipe 10 makes sterilization more thorough.
  • the housing 2 is provided with a transparent partition 16 , and the transparent partition 16 can be made of quartz glass, calcium fluoride or the like, and the receiving cavity 6 and the first ultraviolet tube 8 and the second ultraviolet tube 10
  • the light-transmitting spacers 16 are horizontally disposed on both sides of at least one of the plurality of light-transmissive spacers 16.
  • the first ultraviolet light tubes 8 are disposed under the light-transmitting spacers 16, and the generated ultraviolet light can pass through the transparent light.
  • the light baffle 16 sterilizes the bottom of the hearing aid, and realizes 360° all-round disinfection and disinfection of the hearing aid.
  • the light-transmitting partition 16 can also be placed vertically.
  • the safety switch 18 is designed to prevent ultraviolet light from burning the eyes and skin and to fully protect the user's safety.
  • the safety switch 18 is a Hall switch, and a magnet 20 can be disposed on the inner wall of the cover 4, and the magnet 20 is adjacent to the safety switch 18 when the cover 4 is closed.
  • the safety switch 18 cuts off the first ultraviolet tube. 8
  • the power source of the second ultraviolet tube 10 the first ultraviolet tube 8 and the second ultraviolet tube 10 are extinguished, thereby fully protecting the safety of the user and avoid burning the eyes and the skin.
  • the safety switch 18 is not limited to the Hall switch, and may be a pressure switch.
  • the pressure switch may be disposed in the housing 2, and the pressure switch may be 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 first ultraviolet tube 8 and the second ultraviolet tube 10.
  • 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.
  • the specularly reflective layer 22 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.
  • the number of heat generating elements in each group of heat generating units is different.
  • the heat generating elements in each set of heat generating units are evenly distributed. It is further preferred that the heat generating elements in each group of heat generating units are spaced apart from each other.
  • the drying device inhibits the proliferation of bacteria while avoiding damage to the hearing aids.
  • at least two sets of heating units share a set of power supply circuits 12 and a main control circuit 14, and the drying apparatus further includes a temperature collecting circuit 24, a keying circuit 26, and a reset circuit 28.
  • the first ultraviolet light pipe 8, the second ultraviolet light pipe 10, and the safety switch 18 are connected to the power supply circuit 12 and the main control circuit 14.
  • the power circuit 12 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 C1 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 14 uses ATmega8 microcontroller U1 as the master MCU, 12 ⁇ z crystal oscillator G to meet the control speed and real-time performance.
  • the first ultraviolet light pipe 8, the second ultraviolet light pipe 10, the electronic ballast AP, and the triode VT form a disinfection circuit 23 controlled by the PC3 port of the single chip U1.
  • the electronic ballast AP illuminates the first ultraviolet light pipe 8 and the second ultraviolet light pipe 10 to emit ultraviolet light to achieve double sterilization.
  • Safety switch 16 The signal is output to the PD3 port of the single chip U1 through the inverter IC, and the power supply to the first ultraviolet tube 8 and the second ultraviolet tube 10 is turned on or off.
  • the temperature acquisition circuit 24 includes a plurality of temperature sensors, preferably the model number DS18B20, which is STl-STn.
  • the power supply pins GND of the STl-STn are connected together, the power input terminal Vcc is 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 MCU, 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 actual applications, no external components are required, and A/D conversion is not required, and the digital temperature signal can be directly output.
  • DS 18B20 temperature sensor is not limited to two temperature measuring points, and three, four, etc. may be set.
  • the keying circuit 26 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 28 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 display circuit 30 and the battery detecting circuit 32 may be provided.
  • the display circuit 30 uses the S012864FPD-12CSBE dot matrix liquid crystal module LCD to display text, 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, increments by second.
  • B Temperature display: Instant temperature.
  • the battery detection circuit 32 uses the analog-to-digital converter ADC of the ATmega8 microcontroller U1 to detect the battery voltage to determine the quality of the battery.
  • the ATmegaS microcontroller provides six successive approximation ADCs.
  • 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, as long as the battery is placed in the detecting groove 34 of the casing 2 and pushed into contact with the pole piece (not shown) in the detecting groove 34, the battery is good or bad.
  • the positive pole is connected to the PC0 port of the single chip U1, and the negative pole of the pole piece is grounded.
  • the test results are displayed by the LCD in graphics and text. There are 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 power is three grids full, the text shows that the battery is fully charged.
  • Each group of heating elements includes a heating element Rf zn and a triode VTn, and the triode VTn is preferably a ⁇ -type triode, and a plurality of heating elements Rfzn of each group of heating units are connected in parallel, and one end of the parallel connection is connected with a +5V DC power supply, and the other end is corresponding to
  • the emitter of the transistor VTn is connected, the base of each transistor VTn is connected to the main control circuit 14, and the collector is connected to the ground.
  • At least two sets of heat generating units are connected in parallel to form a drying circuit 36.
  • the drying circuit 36 preferably includes three sets of independently operating heat generating units, including three sets of heating elements Rfz l, Rfz2, Rfz3, and three connected to the three sets of heating elements.
  • Transistors VT1, VT2, VT3, three sets of heating elements are applied to the PCB board 38, three sets of heating elements are arranged on the PCB board 38, and each group of heating elements is evenly distributed.
  • a venting hole 40 may be disposed on the transparent partitioning plate 16, and the heat radiated from the heating element may go up along the venting hole 40 to dry the hearing aid.
  • the three sets of heating elements respectively include three groups A, B, and C.
  • the heating elements of group A include 5 Rfz l
  • the heating elements of group B include 8 Rfz2
  • the heating elements of group C include 12 Rfz3, and the ends of 5 Rfz l are connected in parallel.
  • +5V DC The other end is connected to the emitter of the transistor VT1, the other end of the 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 other end of the 12 Rfz3 is connected to the +5V DC power supply.
  • One end is connected to the emitter of the triode VT3, and the bases of the triodes VT1, VT2, and VT3 are respectively connected to the P3. 4 port, the P3. 5 port, the P3.
  • the drying circuit 24 is provided with three heating zones, and is commanded by the single-chip microcomputer to realize sub-period, sub-section alternately, crossover, and superimposed heating, thereby keeping the temperature of the electronic dryer constant.
  • the MCU issues an instruction, P3. 4 port, P3. 5 port, P3. 7 port low level makes the triode VT1, VT2, VT3 turn on, Rfzl, Rfz2, Rfz3 get electric heating; P3. 4 port, P3. 5 port, P3.
  • the triodes VT1, VT2, and VT3 are turned off, and Rfz l , Rfz2, and Rfz3 are de-energized to stop heating.
  • Rfzl, Rf z2, and Rfz3 all use SMD PTC linear thermistors. Since the chip type linear thermistor is made of PTC material with a positive temperature coefficient, when the thermistor is heated by current, the temperature rises and its resistance Correspondingly, the passing current is correspondingly reduced, so that the calorific value is also correspondingly reduced, and the temperature is correspondingly lowered to be in a constant temperature state, and the temperature is automatically regulated.
  • the heating element uses 25 patch-type PTC linear thermistors, dense array layout, applied to the PCB. There are many hot spots, dense and thin, and there are no dead ends in the distribution. It has the characteristics of uniform heating and fast heating.
  • the PTC material has a positive temperature coefficient, the chip thermistor is energized and heated, the temperature rises, and the resistance increases accordingly, so the current passing through is correspondingly reduced, the heat generation is also reduced, and the temperature is correspondingly decreased and is in a constant temperature state, having an automatic Regulate temperature performance.
  • 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.
  • timing 4h three areas, three time periods as an example:
  • the timing starts to work until the temperature rises to the upper limit.
  • the upper temperature limit is the temperature rise phase, which takes 20 minutes.
  • the first time period of insulation is between 1 hour and 12 hours after the first working period;
  • the second holding period is between 2 hours after the first holding period and the second working period;
  • the third holding period is after the second holding period to the end of the timing.
  • 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, time-divisional alternation, crossover, and superheating are a new type of intelligent heating for hearing aids.
  • the hearing aid is placed on the transparent partition 16 and the power is turned on, and the system is automatically reset by power-on and initialized. Press the SB1 timing 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.
  • the DS18B20 temperature sensor collects the temperature data and transmits the data from the bus to the microcontroller U through the MCU. 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.
  • the microcontroller U issues a command, and the PB2 port and the PB3 port output a high level to turn off the drying circuit 24 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.
  • the single-chip PB1 port outputs a high level to turn off the A heating zone, and the PB3 port outputs a low level to open the C heating zone for heating and insulation.
  • the PB3 port of the single-chip microcomputer outputs the high-level shutdown C heating zone, and the PB1 port and the PB2 port output the low-level opening A heating zone and the B heating zone to supplement the heating until the end of the timing 4h.
  • 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 first ultraviolet tube 8 and the second ultraviolet tube 10 respectively emit ultraviolet light of 254 nm.
  • the generated ultraviolet light can be directly radiated and reflected to the hearing aid through the specular reflection layer 22, the irradiation intensity and the irradiation range are large, the sterilization is thorough, and the light is automatically extinguished every ten minutes.
  • the switch 18 transmits the signal to the single chip U1, and the single chip U1 is switched to the emergency interrupt program to cut off the power of the first ultraviolet light pipe 8 and the second ultraviolet light pipe 10, and the first ultraviolet light pipe 8 and the second ultraviolet light pipe 10 are extinguished, thereby Fully protect the safety of users.
  • the original heat preservation program will be automatically interrupted and the supplementary heating program will be preferentially entered.
  • the priority supplementary heating program will be automatically exited to resume the insulation process.
  • the insulation program is interrupted and the emergency program for cutting off the heating element is preferentially entered.
  • the emergency program is automatically exited to resume the insulation process.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

一种用于助听器的消毒干燥装置，包括壳体（2）、与所述壳体（2）开合连接的壳盖（4），所述壳盖（4）与所述壳体（2）形成收容所述助听器的收容腔（6），所述壳体（2）内设有消毒装置和干燥装置，所述消毒装置包括至少一组第一紫外光管（8）和至少一组第二紫外光管（10），所述第一紫外光管（8）发出波长为200-280nm的紫外光，所述第二紫外光管（10）发出波长为160-200nm的紫外光，所述干燥装置包括至少两组独立工作的发热单元，所述发热单元包括相互电连接的发热元件、电源电路（12）和主控电路（14）。该装置具有双重消毒作用，同时设置的镜面反射层（22）使得紫外光可直接辐射和反射至助听器，透光隔板（16）的设置使得助听器处于紫外光360°全方位的照射下，多重作用下具有超强、彻底的杀菌消毒功效，实现真正的恒温。

Description

用于助听器的消毒干燥装置
技术领域
本发明涉及一种消毒干燥装置， 尤其涉及一种用于助听器的消毒干燥装置。 背景技术
助听器是一个有助于听力残疾者改善听觉障碍， 进而提高与他人会话交际 能力的工具。 佩戴助听器的族群中， 大多为年迈之人和残障人士， 他们身体羸 弱、 抵抗力差， 而助听器被长期塞置在耳内使用， 由于沾染了汗液、 耳垢， 极 易滋生细菌、 病毒， 危害人们的健康， 因此， 改善他们的卫生状况极为重要。 而且助听器在使用过程中不可避免要受到来自于空气中的水汽以及耳内的湿气 而受潮， 因此在日常的维护工作中， 祛除潮气是一项必不可少的措施， 对于助 听器的干燥， 传统的方法是将助听器放在内置干燥剂的容器中， 这种干燥方式 存在以下缺陷： 干燥剂含有可致癌物质， 存在严重损害使用者身体健康的潜在 风险； 同时， 干燥剂产品中含有细小碎屑会进入助听器内并对其造成堵塞， 影 响了助听器的使用寿命。 另夕卜， 在加热恒温的领域中， 常用的是设定上、 下限， 当加热至上限时停止加热， 静止一阶段， 待温度下降至下限时再启动加热， 如 此循环， 很明显恒温过程不平稳， 温度起伏大， 控温精度不高。
发明内容
本发明克服了现有技术的不足， 提供一种结构简单、 杀菌彻底、 恒温过程 平稳的用于助听器的消毒干燥装置。
为达到上述目的， 本发明采用的技术方案为： 一种用于助听器的消毒干燥 装置， 包括壳体、 与所述壳体开合连接的壳盖， 所述壳盖与所述壳体形成收容 所述助听器的收容腔， 所述壳体内设有消毒装置和干燥装置， 所述消毒装置包 括至少一组第一紫外光管和至少一组第二紫外光管， 所述第一紫外光管发出波 长为 200-280nm的紫外光， 所述第二紫外光管发出波长为 160-200nm的紫外光， 所述干燥装置包括至少两组独立工作的发热单元， 所述发热单元包括相互电连 接的发热元件、 电源电路和主控电路。
本发明一个较佳实施例中， 用于助听器的消毒干燥装置进一步包括所述壳 体内设有透光隔板， 所述收容腔与所述第一紫外光管和所述第二紫外光管中的 至少一组分列所述透光隔板两侧。
本发明一个较佳实施例中， 用于助听器的消毒干燥装置进一步包括所述壳 体内设有安全开关， 由所述壳盖的开合实现导通或切断。
本发明一个较佳实施例中， 用于助听器的消毒干燥装置进一步包括所述收 容腔的至少一个内壁上设有镜面反射层。
本发明一个较佳实施例中， 用于助听器的消毒干燥装置进一步包括所述壳 体内设有带透气孔的隔板， 所述收容腔与所述干燥装置分列所述隔板两侧。
本发明一个较佳实施例中， 用于助听器的消毒干燥装置进一步包括所述各 组发热单元中的发热元件的数量不同。
本发明一个较佳实施例中， 用于助听器的消毒干燥装置进一步包括所述每 组发热单元中的发热元件均匀分布。
本发明一个较佳实施例中， 用于助听器的消毒干燥装置进一步包括所述各 组发热单元中的发热元件相互间隔分布。
本发明一个较佳实施例中， 用于助听器的消毒干燥装置进一步包括所述发 热单元还包括与所述主控电路连接的光电耦合器以及与所述光电耦合器连接的 双向可控硅， 用来控制所述发热元件的导通或切断。
本发明一个较佳实施例中， 用于助听器的消毒干燥装置进一步包括还包括 温度采集电路， 所述温度采集电路包括多个温度传感器， 多个所述温度传感器 的输出端通过一条总线与所述主控电路连接。
本发明解决了背景技术中存在的缺陷， 本发明通过 254nm的紫外光的近距 离高强度照射以及通过 185nm的紫外光与空气结合产生的臭氧的强氧化作用， 同时设置的镜面反射层使得紫外光可直接辐射和反射至助听器， 增强了紫外光 的辐照强度， 扩大了紫外光的照射范围， 透光隔板的设置使得助听器处于紫外 光 360 ° 全方位的照射下， 在多重作用下具有超强、彻底的杀菌消毒功效， 不使 用任何药剂， 不会产生二次污染， 而且操作简单方便， 具有安全、 高效、 绿色 的优点， 另外， 通过采用多个贴片式 PTC热敏电阻， 密集型阵列布局， 发热点 多、 密、 细， 不存在死角， 具有发热均匀、 升温快的特点， 而且保留了 PTC 自 动调节温度的优点， 保温效果好， 对助听器的干燥作用强， 运用单片机控制技 术实现分区域、 分时段交替、 交叉、 迭加智能加热， 整个过程始终保持有发热 元件通电加热， 不断补充失散的热量达到热动态平衡， 因此恒温过程平稳， 温 度起伏小、 控温精度高， 实现了真正的恒温， 而且整机的可靠性高， 还可以克 服冬夏两季温度极致、 温差太大以及整机保温性能不能兼顾的不足。
附图说明
下面结合附图和实施例对本发明进一步说明。
图 1是本发明的优选实施例的结构示意图；
图 2是本发明的优选实施例的内部主视图；
图 3是本发明的优选实施例的发热元件分区的结构示意图；
图 4是本发明的优选实施例的电路图。
具体实施方式
现在结合附图和实施例对本发明作进一步详细的说明， 这些附图均为简化 的示意图， 仅以示意方式说明本发明的基本结构， 因此其仅显示与本发明有关 的构成。
如图 1-图 4所示， 一种用于助听器的电子干燥器， 包括壳体 2、 与壳体 2 开合连接的壳盖 4， 壳盖 4可设置为透明的， 壳盖 4与壳体 2形成收容助听器的 收容腔 6， 壳体 2内设有消毒装置和干燥装置， 消毒装置包括至少一组第一紫外 光管 8和至少一组第二紫外光管 10， 第一紫外光管 8发出波长为 200-280nm的 紫外光， 第二紫外光管 10发出波长为 160-200nm的紫外光， 干燥装置包括至少 两组独立工作的发热单元， 发热单元包括相互电连接的发热元件、 电源电路 12 和主控电路 14。
波长为 200-280nm的紫外光能够对助听器进行消毒杀菌， 尤其是中心波长 为 254nm的紫外光很容易被生物体吸收， 作用于生物体的 DNA和 RNA,使之被破 坏而导致细菌、 病毒死亡， 高强度的紫外光在短时间内即可杀菌， 对细菌繁殖 体仅需 1秒即可杀灭， 紫外光近距离高强度照射， 可将物体表面上的细菌芽孢 杀灭 99. 9%以上， 而且对任何细菌、病毒都有极强极高的杀菌消毒作用。波长为 160-200nm的紫外光能够与空气作用产生臭氧，尤其是中心波长为 185nm的紫外 光与空气作用产生具有强氧化作用的臭氧， 改变、 破坏微生物的 DNA、 RNA等， 使细菌的代谢和繁殖过程遭到破坏， 从而杀灭细菌。 第一紫外光管 8和第二紫 外光管 10的双重杀菌作用使得消毒杀菌更加彻底。
优选壳体 2内设置有透光隔板 16， 透光隔板 16可采用石英玻璃、氟化钙等 材料制成， 收容腔 6以及第一紫外光管 8和第二紫外光管 10中的至少一组分列 透光隔板 16的两侧， 优选透光隔板 16水平放置， 进一步优选第一紫外光管 8 设在透光隔板 16的下方， 产生的紫外光可穿过该透光隔板 16对助听器的底部 进行消毒杀菌， 实现助听器 360° 全方位消毒杀菌， 消毒彻底。 当然并不局限于 此种方式， 透光隔板 16也可以竖直放置。
还可以设置安全开关 18， 安全开关 18由壳盖 4的开合实现导通或切断。安 全开关 18的设置能够避免紫外光灼伤眼睛和皮肤， 充分保护使用者的安全。 优 选安全开关 18为霍尔开关， 可在壳盖 4的内壁上设置磁铁 20， 壳盖 4关闭时磁 铁 20紧邻安全开关 18， 在打开壳盖 4时， 安全开关 18会切断第一紫外光管 8 和第二紫外光管 10的电源， 第一紫外光管 8和第二紫外光管 10熄灭， 从而充 分保护使用者的安全，避免灼伤眼睛和皮肤。安全开关 18并不局限于霍尔开关， 也可以为压力开关， 可将压力开关设在壳体 2内， 壳盖 4关闭时接触压力开关， 壳盖 4打开时， 压力消失， 存在压力的改变， 实现对第一紫外光管 8和第二紫 外光管 10的导通或切断。
优选收容腔 6的至少一个内壁上设有镜面反射层 22， 紫外光可直接辐射和 反射至助听器， 提高了紫外光的辐照强度和辐照范围， 消毒杀菌效果好。 进一 步优选镜面反射层 22可以为镜片、 金属镜面贴片、 反光膜或电镀层， 镜片可以 是玻璃镜子； 金属镜面贴片可以是不锈钢板。
优选各组发热单元中的发热元件的数量不同。 优选每组发热单元中的发热 元件均匀分布。 进一步优选各组发热单元中的发热元件相互间隔分布。
干燥装置可抑制细菌的繁殖， 同时避免助听器受潮而损坏。 优选至少两组 发热单元共用一套电源电路 12和主控电路 14， 干燥装置还包括温度采集电路 24、键控电路 26、 复位电路 28。优选第一紫外光管 8、第二紫外光管 10以及安 全开关 18均与电源电路 12和主控电路 14连接。
电源电路 12由适配器提供 +5V直流电源，供各电路用电。其包括 USB端口， 以方便就近从电脑或手机充电器获取 +5V电源。 二极管 VD起极性保护作用， C1 为滤波电容。 二极管 VD的正极与 USB端口的电源引脚连接， 二极管 VD的负极 与滤波电容 C1的正极连接， 滤波电容 C1的负极与 USB端口的接地引脚连接。
主控电路 14采用 ATmega8单片机 U1作主控 MCU， 12匪 z晶振 G以满足控制 速度及实时性。
第一紫外光管 8、第二紫外光管 10、 电子镇流器 AP、三极管 VT形成消毒电 路 23， 受控于单片机 U1的 PC3口。 PC3口高电平时， 电子镇流器 AP点亮第一 紫外光管 8和第二紫外光管 10， 发出紫外光， 实现双重杀菌作用。 安全开关 16 通过反相器 IC输出信号给单片机 U1的 PD3口， 实现对第一紫外光管 8和第二 紫外光管 10的电源的导通或切断。
温度采集电路 24包括多个温度传感器，优选温度传感器的型号为 DS18B20, 分别为 STl-STn。 STl-STn 的电源地脚 GND接在一起， 电源输入端 Vcc接在一起 且与电源电路 20提供的 +5V直流电源连接，数字信号输入输出端 DQ接在一起且 与单片机 U的 PD2口连接。 DS18B20与单片机 U之间仅需一条口线即可双向通信， 而且在一条总线上可挂接多个 DS 18B20温度传感器， 实现多点组网测温， 测温 精度高。 实际应用中不需任何外部元器件， 也不需进行 A/D转换， 即可直接输 出数字温度信号。 本实施例的电路中包括两个 DS18B20温度传感器 ST1、 ST2, 此时 n=2，设置了两处测温点， 但并不局限于两处测温点， 也可以设置三个、 四 个等 DS 18B20温度传感器。
键控电路 26包括 SB1， SB1—键多功能。 按一次， 定时 2h， 可连续加热 2 小时； 按二次， 定时 4h， 可连续加热 4h; 按三次， 定时 6h， 可连续加热 6小时。 内设定三次为一循环周期， 按第四次进入下一个循环周期， 按第四次为定时 2h， 按第 5次为定时 4h， 按第 6次为定时 6h， 如此循环不断。 长按 SB1， 则设置取 消， 关机。
复位电路 28包括 C2和 Rl， 系统上电自动复位。 刚开始上电时， 亦即刚一 接通 Vcc电源时， 由于电容 C2上的电压不能突变， 通电瞬间 C2相当于短路， Vcc电源的电压都落在 R1上， 此一高电平加在单片机 U的 PC6/RST口， 只要满 足加在 RST上的高电平能持续 24个振荡周期即可使单片机复位。
另外， 为了便于知道干燥定时时间和检测助听器的电量， 还可以设置显示 电路 30和电池检测电路 32。
显示电路 30采用 S012864FPD-12CSBE点阵液晶模块 LCD, 可以显示文字、 符号和图形。 A、 时间显示： 定时设定时间， 分 2h、 4h、 6h; 定时启动时刻， 24 小时制； 即时时间， 24小时制， 逐秒递增。 B、 温度显示： 即时温度。 C、 电量 显示： 电池图形为空格时， 文字显示电池失效； 电池图形有一格时， 文字显示 欠电； 电池图形有二格时， 文字显示电量不足； 电池电量为三格满格时， 文字 显 电量充足。
电池检测电路 32利用 ATmega8单片机 U1内部的模数转换器 ADC检测电池 电压的高低来判断电池的好坏。单片机 ATmegaS提供 6路逐次逼近型的 ADC， 其 中， ADC0-ADC3这 4个通道提供了 10位的转换精度， ADC4、 ADC5两个通道只提 供 8位的转换精度。 本电路利用 ADC0检测电压的高低。 测试时， 只要将电池置 于壳体 2的检测凹槽 34内， 推紧使之与检测凹槽 34内的极片（图中未示出）接 触良好， 即可知电池的好坏，极片的正极与单片机 U1的 PC0口连接， 极片的负 极接地。 检测结果由 LCD以图形和文字显示， 分 4种状态： 电池图形为空格时， 文字显示电池失效； 电池图形有一格时， 文字显示欠电； 电池图形有二格时， 文字显示电量不足； 电池电量为三格满格时， 文字显示电量充足。
每组发热单元包括发热元件 Rf zn、 三极管 VTn， 三极管 VTn优选为 ΡΝΡ型 三极管， 每组发热单元的多个发热元件 Rfzn并联连接， 并联后的一端与 +5V直 流电源连接， 另一端与对应的三极管 VTn的发射极连接， 每个三极管 VTn的基 极与主控电路 14连接， 集电极与地连接。 至少两组发热单元并联后构成干燥电 路 36， 本实施例优选干燥电路 36包括三组独立工作的发热单元， 包括三组发热 元件 Rfz l、 Rfz2、 Rfz3、分别与三组发热元件连接的三个三极管 VT1、 VT2、 VT3 , 三组发热元件均敷贴在 PCB板 38上， 三组发热元件间隔排布在 PCB板 38上， 每组发热元件均匀分布。 为了便于热气的散发， 还可以在透光隔板 16上设置透 气孔 40， 发热元件散发的热量可沿透气孔 40向上走， 干燥助听器。三组发热元 件分别包括 A、 B、 C三组， 优选 A组发热元件包括 5个 Rfz l ， B组发热元件包 括 8个 Rfz2 ， C组发热元件包括 12个 Rfz3， 5个 Rfz l并联后一端与 +5V直流 电源连接， 另一端与三极管 VT1的发射极连接， 8个 Rfz2并联后一端与 +5V直 流电源连接， 另一端与三极管 VT2的发射极连接， 12个 Rfz3并联后一端与 +5V 直流电源连接， 另一端与三极管 VT3的发射极连接， 三极管 VT1 、 VT2 、 VT3 的基极分别与单片机 U的 P3. 4口、 P3. 5口、 P3. 7口连接， 三极管 VT1、 VT2 、 VT3的集电极均与地连接。 干燥电路 24设置 3个加热区， 由单片机发出指令， 实现分时段、 分区段交替、 交叉、 叠加加热， 从而保持电子干燥器的温度恒定。 单片机发出指令， P3. 4口、 P3. 5口、 P3. 7口低电平使三极管 VT1 、 VT2 、 VT3 导通， Rfzl 、 Rfz2 、 Rfz3得电发热； P3. 4口、 P3. 5口、 P3. 7口高电平时， 三极管 VT1 、VT2 、VT3截止， Rfz l 、 Rfz2 、 Rfz3失电停止发热。 Rfzl 、 Rf z2 、 Rfz3均采用贴片式 PTC线性热敏电阻， 由于贴片式线性热敏电阻是由 PTC材料 制成具有正温度系数， 当热敏电阻通过电流发热时温度升高， 其电阻相应增大， 使通过的电流相应减小， 于是发热量也相应减小， 温度相应下降而处于恒温状 态， 具有自动调控温度的性能。
发热元件采用贴片式 PTC线性热敏电阻 25个， 密集型阵列式布局， 敷贴在 PCB板上。 发热点多、 密、 细， 分布广不存在死角， 具有发热均匀、 升温快的特 点。 PTC材料具有正温度系数， 贴片热敏电阻通电发热， 温度升高， 其电阻也相 应增大， 于是通过的电流相应减小， 发热量也减小， 温度相应下降而处于恒温 状态， 具有自动调控温度的性能。
分区域是将发热元件的排列分布位置划分成若干个区域； 分时段则是将整 个加热干燥过程切割成若干个时段。
现以定时 4h、 三区域、 三时段为例说明：
定时启动开始工作至升温到内设定温度上限为升温阶段， 此升温过程需时 20分钟。 其后至定时工作 1小时之间为保温第一时段； 第一保温时段后至定时 工作 2小时之间为第二保温时段； 第二保温时段后至定时结束为第三保温时段。 图 2为本实施例的三区域的划分示意图： A区域有 5个发热元件 Rfz l， B区域有 8个发热元件 Rfz2， C区域有 12个发热元件 Rfz3。 以上安排是基于发热元件均 布、发热均匀的原则。 A区域的发热元件最少是因为 A区域工作在保温第一时段， 余热最大。
分区域、 分时段交替、 交叉、 迭加加热是用于助听器的一种全新的智能加 热。 区域、 时段分的越细则加热温度越恒定， 同时， 区域、 时段的组合视需要 可任意组合。
工作过程：
助听器放置在透光隔板 16上，接通电源，系统上电自动复位，进行初始化。 连续按动 SB1定时时间选择按钮 2次， 定时启动， LCD显示定时时间 4h、 定时 启动时刻 XX： XX以及即时时间 XX： XX逐秒递增。 同时， DS18B20 温度传感器采 集温度数据并将数据从总线传送给单片机 U经单片机 U处理， 与预设温度比较， 结果远远低于下限阈值， 启动优先程序， 单片机 PB1口、 PB2口、 PB3输出低电 平， 驱动干燥电路 24所有加热区同时加热升温， 直至 DS18B20采集到的温度数 据已达到预设定温度上限阈值时， 单片机 U发出指令， PB2 口、 PB3口输出高 电平关断干燥电路 24的 B加热区和 C加热区。 整机进入第一保温时段， 仅由 A 加热区进行补偿加热， 以保持温度恒定。 进入保温第二时段单片机 PB1 口输出 高电平关断 A加热区， PB3口输出低电平开通 C加热区加热保温。进入保温第三 时段单片机 PB3口输出高电平关断 C加热区， PB1口、 PB2口输出低电平开通 A 加热区和 B加热区补充加热直至定时 4h结束。 同时， 设定加热全过程中进行二 次杀菌消毒， 分别在进入第一保温时段和第二保温时段时自动启动工作， 第一 紫外光管 8和第二紫外光管 10分别发出 254nm的紫外光、 185nm的紫外光， 产 生的紫外光可经镜面反射层 22直接辐射和反射至助听器， 辐照强度和辐照范围 大， 杀菌消毒彻底， 每次十分钟后自动熄灭。 另外， 在打开壳盖 4 时， 安全开 关 18会将信号传递至单片机 Ul， 单片机 U1转入紧急中断程序切断第一紫外光 管 8和第二紫外光管 10的电源， 第一紫外光管 8和第二紫外光管 10熄灭， 从 而充分保护使用者的安全。
在加热干燥过程中如果探测到低于预设定温度时， 会自动中断原有保温程 序而优先进入补充加热程序， 直至升温至预设定温度时， 自动退出优先补充加 热程序恢复继续保温程序。 当探测到高于预设定温度时， 会中断保温程序而优 先进入切断发热元件供电的紧急程序， 待温度降至预设定温度时会自动退出紧 急程序恢复继续保温程序。
以上依据本发明的理想实施例为启示， 通过上述的说明内容， 相关人员完 全可以在不偏离本项发明技术思想的范围内， 进行多样的变更以及修改。 本项 发明的技术性范围并不局限于说明书上的内容， 必须要根据权利要求范围来确 定技术性范围。

Claims

伙 不 ϋ 安
1. 一种用于助听器的消毒干燥装置， 包括壳体、 与所述壳体开合连接的壳 盖， 所述壳盖与所述壳体形成收容所述助听器的收容腔， 其特征在于： 所述壳 体内设有消毒装置和干燥装置， 所述消毒装置包括至少一组第一紫外光管和至 少一组第二紫外光管， 所述第一紫外光管发出波长为 200-280nm的紫外光， 所 述第二紫外光管发出波长为 160-200nm的紫外光， 所述干燥装置包括至少两组 独立工作的发热单元， 所述发热单元包括相互电连接的发热元件、 电源电路和 主控电路。
2. 根据权利要求 1所述的用于助听器的消毒干燥装置， 其特征在于： 所述 壳体内设有透光隔板， 所述收容腔与所述第一紫外光管和所述第二紫外光管中 的至少一组分列所述透光隔板两侧。
3. 根据权利要求 1或 2所述的用于助听器的消毒干燥装置， 其特征在于- 所述壳体内设有安全开关， 由所述壳盖的开合实现导通或切断。
4. 根据权利要求 3所述的用于助听器的消毒干燥装置， 其特征在于： 所述 收容腔的至少一个内壁上设有镜面反射层。
5. 根据权利要求 1所述的用于助听器的消毒干燥装置， 其特征在于： 所述 壳体内设有带透气孔的隔板， 所述收容腔与所述干燥装置分列所述隔板两侧。
6. 根据权利要求 1或 5所述的用于助听器的消毒干燥装置， 其特征在于- 所述各组发热单元中的发热元件的数量不同。
7. 根据权利要求 6所述的用于助听器的消毒干燥装置， 其特征在于： 所述 每组发热单元中的发热元件均匀分布。
8. 根据权利要求 7所述的用于助听器的消毒干燥装置， 其特征在于： 所述 各组发热单元中的发热元件相互间隔分布。
9. 根据权利要求 1或 5所述的用于助听器的消毒干燥装置， 其特征在于： 所述发热单元还包括与所述主控电路连接的光电耦合器以及与所述光电耦合器 连接的双向可控硅， 用来控制所述发热元件的导通或切断。
10. 根据权利要求 9所述的用于助听器的消毒干燥装置， 其特征在于： 还 包括温度采集电路， 所述温度采集电路包括多个温度传感器， 多个所述温度传 感器的输出端通过一条总线与所述主控电路连接。
PCT/CN2013/089506 2013-12-16 2013-12-16 用于助听器的消毒干燥装置 WO2015089698A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN201018665Y (zh) * 2007-03-09 2008-02-06 苏州市百助听力科技有限公司 助听器维护仪
CN201088725Y (zh) * 2007-08-09 2008-07-23 任志文 便携式美容美发用具消毒盒
WO2011059461A1 (en) * 2009-11-11 2011-05-19 Hearing Technologies International, Inc. Hearing aid dryer
KR20120085980A (ko) * 2011-01-25 2012-08-02 이승택 보청기용 무접점 충전기
CN102755654A (zh) * 2012-08-06 2012-10-31 上海上远齿科技术有限公司 一种口腔用品消毒器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201018665Y (zh) * 2007-03-09 2008-02-06 苏州市百助听力科技有限公司 助听器维护仪
CN201088725Y (zh) * 2007-08-09 2008-07-23 任志文 便携式美容美发用具消毒盒
WO2011059461A1 (en) * 2009-11-11 2011-05-19 Hearing Technologies International, Inc. Hearing aid dryer
KR20120085980A (ko) * 2011-01-25 2012-08-02 이승택 보청기용 무접점 충전기
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