CN103747387A

CN103747387A - Sterilizing and drying device for hearing aid

Info

Publication number: CN103747387A
Application number: CN201310686667.7A
Authority: CN
Inventors: 徐炜; 徐斌; 吴秋麒
Original assignee: SUZHOU LIREN HEARING EQUIPMENT Co Ltd
Current assignee: SUZHOU LIREN HEARING EQUIPMENT Co Ltd
Priority date: 2013-12-16
Filing date: 2013-12-16
Publication date: 2014-04-23
Anticipated expiration: 2033-12-16
Also published as: CN103747387B

Abstract

The invention relates to a sterilizing and drying device for a hearing aid. The device comprises a shell body and a shell cover which is connected with the shell body in an opening and closing mode. The shell cover and the shell body form an accommodating cavity accommodating the hearing aid. The shell body is internally provided with a power supply circuit, a main control circuit connected with the power supply circuit, a sterilizing circuit and a drying circuit, wherein the power supply circuit includes a USB port, and the sterilizing circuit and the drying circuit are connected with the main control circuit. The sterilizing and drying device has super-strong and thorough disinfection and sterilization effects through close-range high-intensity irradiation of ultraviolet light, secondary pollution is not produced, operation is simple and convenient, and the device has the advantages of being green, efficient and safe. In addition, by the adoption of a plurality of chip PTC thermal resistors which are intensively arranged in arrays, the device has a large number of dense and fine heating points, has no dead corner, has the characteristics of uniform heating and fast temperature rise, retains the advantage of automatic temperature regulation of a PTC, is good in heat preservation effect and has a strong drying effect on the hearing aid.

Description

Hearing aids sterilization and drying device

Technical field

The present invention relates to a kind of sterilization and drying device, relate in particular to a kind of hearing aids sterilization and drying device.

Background technology

Hearing aids is one and contributes to hearing disabilities person to improve dysacousis, and then the instrument of raising and his conference communicative competence.Wear in the group of hearing aids, be mostly old people and physical disabilities, their health is thin and weak, resistance is poor, and hearing aids is plugged for a long time and is used in ear, owing to being infected with sweat, earwax, very easily breed bacteria, virus, harm people's health, therefore, improve their sanitary condition very important.And hearing aids in use unavoidably will be subject to coming from the moisture in airborne steam and ear and make moist, therefore, in daily maintenance work, dispelling moisture is a requisite measure.

Summary of the invention

The present invention has overcome the deficiencies in the prior art, and a kind of simple in structure, sterilization chlorination equipment is thoroughly provided.

For achieving the above object, the technical solution used in the present invention is: a kind of hearing aids sterilization and drying device, comprise housing, the cap being connected with described housing folding, described cap and described housing form the host cavity of accommodating described hearing aids, the governor circuit, sterilisation circuit and the drying circuit that in described housing, be provided with power circuit, are connected with described power circuit, described power circuit comprises USB port, and described sterilisation circuit is all connected with described governor circuit with drying circuit.

In a preferred embodiment of the present invention, hearing aids further comprises and also comprises temperature collection circuit with sterilization and drying device, described temperature collection circuit comprises a plurality of temperature sensors, and the output of a plurality of described temperature sensors is connected with described governor circuit by a bus.

In a preferred embodiment of the present invention, hearing aids further comprises and also comprises display circuit with sterilization and drying device, and described display circuit is connected with described governor circuit, and described display circuit comprises LCD.

In a preferred embodiment of the present invention, hearing aids further comprises and also comprises battery detection circuit with sterilization and drying device, and described battery detection circuit is connected with described governor circuit.

In a preferred embodiment of the present invention, hearing aids further comprises and also comprises keying circuit and reset circuit with sterilization and drying device, and described keying circuit is all connected with described governor circuit with reset circuit.

In a preferred embodiment of the present invention, hearing aids with sterilization and drying device further comprise described sterilisation circuit comprise ultraviolet light pipe, with the electric ballast that described ultraviolet light pipe is connected, described ultraviolet light pipe sends the ultraviolet light that wavelength is 200-280nm.

In a preferred embodiment of the present invention, hearing aids further comprises that with sterilization and drying device described drying circuit comprises the heater element that at least two groups work alone.

In a preferred embodiment of the present invention, the quantity of respectively organizing heater element described in hearing aids further comprises with sterilization and drying device is different.

In a preferred embodiment of the present invention, hearing aids further comprises that with sterilization and drying device described every group of heater element is uniformly distributed.

In a preferred embodiment of the present invention, described in hearing aids further comprises with sterilization and drying device, respectively organize heater element space and distribute.

The invention solves the defect existing in background technology, the present invention is irradiated by the closely high strength of ultraviolet light, has superpower, sterilizing effect, is not used any medicament thoroughly, can not produce secondary pollution, and simple to operation, has safety, efficiently, green advantage, in addition, by adopting a plurality of SMD PTC thermistors, intensive array layout, heat generating spot is many, close, carefully, there is not dead angle, there is heating evenly, the feature of quick heating, and retained the advantage that PTC regulates temperature automatically, high insulating effect, to the desiccation of hearing aids strong, use single-chip microcomputer control technology to realize subregion, replace at times, intersect, superposition Intelligent heating, whole process has remained heater element energising heating, constantly supplement the heat scattering and reach hot dynamic equilibrium, so thermostatic process is steady, temperature fluctuation is little, temperature-controlled precision is high, has realized real constant temperature, and the reliability of complete machine is high, can also overcome two season of summer in winter temperature ultimate attainment, the deficiency that the temperature difference is too large and complete machine heat-insulating property can not be taken into account.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is the structural representation of the preferred embodiments of the present invention;

Fig. 2 is the internal main view of the preferred embodiments of the present invention;

Fig. 3 is the structural representation of the heater element subregion of the preferred embodiments of the present invention;

Fig. 4 is the circuit diagram of the preferred embodiments of the present invention.

Embodiment

The present invention is further detailed explanation in conjunction with the accompanying drawings and embodiments now, and these accompanying drawings are the schematic diagram of simplification, basic structure of the present invention is only described in a schematic way, so it only shows the formation relevant with the present invention.

As Figure 1-Figure 4, a kind of hearing aids sterilization and drying device, comprise housing 2, the cap 4 being connected with housing 2 foldings, cap 4 can be transparent, cap 4 forms the host cavity 6 of accommodating hearing aids with housing 2, in housing 2, be provided with power circuit 8, the governor circuit 10 being connected with power circuit 8, sterilisation circuit 12 and drying circuit 14, sterilisation circuit 12 is all connected with governor circuit 10 with drying circuit 14.

Power circuit 8 is by provide+5V of adapter DC power supply, for each circuit electricity consumption.Power circuit 8 comprises USB port, diode VD and filter capacitor C1, and the positive pole of diode VD is connected with the power pins of USB port, and the negative pole of diode VD is connected with the positive pole of filter capacitor C1, and the negative pole of filter capacitor C1 is connected with the grounding pin of USB port.Diode VD plays polarity protection effect, and C1 is filter capacitor, and the setting person of being easy to use of USB port is nearby from obtain+5V of computer or charger for mobile phone power supply.

Governor circuit 10 adopts ATmega8 single-chip microcomputer U1 to make main control MCU, 28 pins.12MHz crystal oscillator G is to meet control rate and real-time.Governor circuit 10 is not limited to use single-chip microcomputer, also can service time relay.

Sterilisation circuit 12 comprises ultraviolet light pipe 16, electric ballast AP1, triode VT, is controlled by the PC3 mouth of single-chip microcomputer U1.During PC3 mouth high level, electric ballast AP1 lights ultraviolet light pipe 16, sends the direct sterilizing of ultraviolet light.Preferably ultraviolet light pipe 16 sends the ultraviolet light that wavelength is 200-280nm.Wavelength is that the ultraviolet light of 200-280nm can be to the hearing aids sterilization that carries out disinfection, especially the ultraviolet light that centre wavelength is 254nm is easy to be absorbed by organism, act on DNA and the RNA of organism, make it destroyed and cause bacterium, virus death, high-intensity ultraviolet light gets final product sterilization at short notice, to bacterial propagule, only need within 1 second, can kill, ultraviolet light closely high strength irradiates, bacterial spore on body surface can be killed more than 99.9%, and any bacterium, virus are had to extremely strong high sterilizing effect.

Can also be at the interior safety switch 18 that arranges of housing 2, by the folding of cap 4, realize conducting or cut-out, safety switch 18 is connected with the PD3 mouth of single-chip microcomputer U1 by inverter ic.The setting of safety switch 18 can be avoided ultraviolet light burn eyes and skin, the user's that adequately protects safety.Further preferred security switch 18 is Hall switch; magnet 20 can be set on the inwall of cap 4; magnet 20 next-door neighbour's safety switches 18 when cap 4 is closed; when opening cap 4; safety switch 18 outputs signal to the PD3 mouth of single-chip microcomputer U1 by inverter ic; the cut-out of realization to the power supply of ultraviolet light pipe 16, thereby the user's that adequately protects safety, avoid burning eyes and skin.Safety switch 18 is not limited to Hall switch, can be also pressure switch, pressure switch can be located in housing 2, contact switch when cap 4 is closed, when cap 4 is opened, pressure disappears, there is the change of pressure, realize the conducting of ultraviolet light pipe 16 or cut-out.

Drying circuit 14 comprises heater element Rfz1-Rfzn, at least two the triode VT1-VTn that at least two groups work alone, a plurality of heater elements of every group of heater element are connected in parallel, n is more than or equal to 2 positive integer, one end after every group of heater element parallel connection is connected with+5V DC power supply, the other end connects with the emitter of corresponding triode, the base stage of each triode is connected with governor circuit 10, and collector electrode is connected with ground.The preferred drying circuit 14 of the present embodiment comprises three groups of heater elements that work alone, three triode VT1, the VT2, the VT3 that are connected with three groups of heater elements respectively, three groups of heater elements are all applied ointment or plaster on pcb board 22, every group of heater element is uniformly distributed, and each is organized heater element space and distributes.For the ease of dry hearing aids, the top of three groups of heater elements is provided with the dividing plate 26 with air-vent 24, and the hot gas that heater element distributes can make progress away along air-vent 24, and hearing aids is placed on dividing plate 26 and is dried.Three groups of heater elements comprise respectively A, B, tri-groups of C, A group heater element comprises 5 Rfz1, B group heater element comprises 8 Rfz2, C group heater element comprises 12 Rfz3, after 5 Rfz1 parallel connections, one end is connected with+5V DC power supply, the other end is connected with the emitter of triode VT1, after 8 Rfz2 parallel connections, one end is connected with+5V DC power supply, the other end is connected with the emitter of triode VT2, after 12 Rfz3 parallel connections, one end is connected with+5V DC power supply, the other end is connected with the emitter of triode VT3, triode VT1, VT2, the base stage of VT3 respectively with the PB1 mouth of single-chip microcomputer U1, PB2 mouth, PB3 mouth connects, triode VT1, VT2, the collector electrode of VT3 is all connected with ground.Drying circuit 14 arranges 3 thermals treatment zone, by single-chip microcomputer, sends instruction, realize at times, minute section alternately, intersect, stack heating, thereby keep the temperature constant of electronic dry device.Single-chip microcomputer sends instruction PB1 mouth, PB2 mouth, PB3 mouth low level and makes triode VT1, VT2, VT3 conducting, and Rfz1, Rfz2, Rfz3 obtain electric heating; When PB1 mouth, PB2 mouth, PB3 mouth high level, triode VT1, VT2, VT3 cut-off, Rfz1, Rfz2, Rfz3 dead electricity stop heating.Rfz1, Rfz2, Rfz3 all adopt SMD PTC thermilinear thermistor, because SMD thermilinear thermistor is to be made and had positive temperature coefficient by ptc material, when thermistor during by current heating temperature raise, the corresponding increase of its resistance, make corresponding the reducing of electric current passing through, so caloric value is corresponding reducing also, the corresponding decline of temperature and in temperature constant state, there is the performance of auto-control temperature.

Heater element adopts 25 of SMD PTC thermilinear thermistors, and intensive array layout, applies ointment or plaster on pcb board.Heat generating spot is many, close, thin, distributes and does not extensively have dead angle, has the feature even, quick heating of generating heat.Ptc material has positive temperature coefficient, paster thermistor heating power, and temperature raises, and its resistance is corresponding increase also, so the electric current passing through is corresponding, reduces, and caloric value also reduces, the corresponding decline of temperature and in temperature constant state, have the performance of auto-control temperature.

Subregion is that the arranged distribution position of heater element is divided into several regions; That whole heat drying process is cut into several periods at times.

Now take timing 4h, three regions, three periods is example explanation:

Start by set date is started working and is limited to the temperature rise period to being warmed up on interior design temperature, and this temperature-rise period takes 20 minutes.Thereafter to being the first period of insulation between timing working 1 hour; After the first insulation period, to timing working, it was the second insulation period between 2 hours; After the second insulation period, to regularly ending up being the 3rd, be incubated the period.Fig. 2 is the division schematic diagram in three regions of the present embodiment: there are 5 heater element Rfz1 a-quadrant, and there are 8 heater element Rfz2 in B region, and there are 12 heater element Rfz3 in C region.More than arranging is, generate heat uniform principle uniform based on heater element.The heater element of a-quadrant is minimum is that waste heat is maximum because a-quadrant is operated in the first period of insulation.

Also comprise temperature collection circuit 28, temperature collection circuit 28 adopts a plurality of temperature sensors, and temperature sensor is monobus intelligent digital temperature sensor DS18B20, is respectively ST1-STn.The power supply lower margin GND of ST1 and STn is connected together, power input Vcc be connected together and provide with power circuit+5V DC power supply is connected, digital signal input/output terminal DQ is connected together and is connected with the PD2 mouth of single-chip microcomputer U1.Between DS18B20 and single-chip microcomputer U1, only need a Tiaokou line to get final product two-way communication, and can articulate a plurality of DS18B20 temperature sensors in a bus, realize multiple spot networking thermometric, temperature measurement accuracy is high.In practical application, do not need any external component, do not need to carry out A/D conversion yet, can directly export digital temperature signal.The circuit of the present embodiment comprises two DS18B20 temperature sensor ST1, ST2, and now n=2, is provided with two place's points for measuring temperature, but is not limited to two place's points for measuring temperature, and the DS18B20 temperature sensors such as three, four also can be set.

For the ease of intuitively knowing dry timing, display circuit 30 can also be set.Display circuit 30 adopts SO12864FPD-12CSBE lattice lcd modular LCDs, can display text, symbol and figure.A, time showing: timing setting time, minute 2h, 4h, 6h; Start by set date constantly, is made for 24 hours; The instant time, 24 hours systems, by increasing progressively second.B, temperature show: real-time temperature.C, electric weight show: when battery figure is space, word shows battery failure; When battery figure has lattice, word shows owes electricity; When battery figure has two lattice, word shows that electric weight is not enough; When battery electric quantity is the full lattice of three lattice, word shows that electric weight is sufficient.

In order to detect the electric weight of hearing aids, battery detection circuit 32 can also be set.The height that battery detection circuit 32 utilizes the analog to digital converter ADC of ATmega8 single-chip microcomputer U1 inside to detect cell voltage judges the quality of battery.Single chip computer AT mega8 provides the ADC of 6 road successive approximations, and wherein, these 4 passages of ADC0-ADC3 provide the conversion accuracy of 10, and ADC4, two passages of ADC5 only provide the conversion accuracy of 8.This circuit utilizes ADC0 to detect the height of voltage.During test, as long as battery is placed in the detecting groove 34 of housing 2, push-tight makes it to contact well with the pole piece (not shown) in detecting groove 34, it is the quality of known battery, convenient and swift, the positive pole of pole piece is connected with the PC0 mouth of single-chip microcomputer U1, the minus earth of pole piece.Testing result can also be shown with figure and word by LCD, minute 4 kinds of states: when battery figure is space, word shows battery failure; When battery figure has lattice, word shows owes electricity; When battery figure has two lattice, word shows that electric weight is not enough; When battery electric quantity is the full lattice of three lattice, word shows that electric weight is sufficient.

Also comprise keying circuit 36 and reset circuit 38, keying circuit 36 is all connected with governor circuit 10 with reset circuit 38.

Keying circuit 36 comprises SB1, SB1 multi-function by one key.By once, 2h regularly, can laser heating 2 hours; Press secondary, 4h regularly, can laser heating 4h; By three times, 6h regularly, can laser heating 6 hours.Setting is for three times a cycle period, by the 4th time, enters next cycle period, by the 4th time, is regularly 2h, by the 5th, is regularly 4h, by the 6th time, is regularly 6h, and so circulation constantly.Length is pressed SB1, and cancellation is set, shutdown.

Reset circuit 38 comprises C2 and R1, and system powers on and automatically resets.While just starting to power on, that is during firm connection Vcc power supply, because the voltage in capacitor C 2 can not suddenly change, energising moment C2 is equivalent to short circuit, the voltage of Vcc power supply all drops on R1, this high level is added in single-chip microcomputer PC6/RST mouth, as long as the satisfied high level being added on RST can continue 24 cycles of oscillation, can make monolithic processor resetting.

The course of work:

Switch on power, system powers on and automatically resets, and carries out initialization.Press continuously SB1 timing and select button 2 times, start by set date, LCD Displaying timer time 4h, start by set date moment xx:xx and instant time xx:xx are by increasing progressively second.Simultaneously, multiple spot DS18B20 temperature acquisition sends detection data to single-chip microcomputer U1 from bus and processes through single-chip microcomputer U1, one tunnel is sent to LCD and shows real-time temperature, on the other hand with preset temperature comparison, result is well below lower threshold, start priority routine, single-chip microcomputer PB1, PB2, PB3 mouth output low level, drive all thermals treatment zone of drying circuit 14 heat temperature raising simultaneously, until the temperature data that DS18B20 collects has reached while presetting temperature upper limit threshold value, LCD shows real-time temperature, single-chip microcomputer U1 sends instruction, PB2, PB3 mouth output high level turn-offs the heating main circuit B thermal treatment zone and the C thermal treatment zone.Complete machine entered for the first insulation period, only by the A thermal treatment zone, compensated heating, to keep temperature constant.Enter insulation the second period single-chip microcomputer PB1 mouth output high level and turn-off the A thermal treatment zone, PB3 mouth output low level is opened C thermal treatment zone heating and thermal insulation.Enter insulation the 3rd period single-chip microcomputer PB3 mouth output high level and turn-off the C thermal treatment zone, PB1, PB2 mouth output low level open the A thermal treatment zone and the supplementary heating of the B thermal treatment zone until regularly 4h finish.Simultaneously, set in heating overall process and carry out re-pasteurization sterilization, entering the first insulation period and second insulation automatic startup work during the period respectively, ultraviolet light pipe 16 sends the ultraviolet light that wavelength is 200-280nm, thorough in sterilization, automatic distinguishing after each ten minutes.In addition, when opening cap 4, safety switch 18 can be passed to single-chip microcomputer U1 by signal, and single-chip microcomputer U1 proceeds to the power supply that urgent interrupt routine cuts off ultraviolet light pipe 16, and ultraviolet light pipe 16 extinguishes, thus the user's that adequately protects safety.

If detected in heat drying process when presetting temperature, can automatically interrupt original insulation program and preferentially enter supplementary heating program, until be warming up to while presetting temperature, automatically exit preferential supplementary heating program recovery and continue insulation program.When detecting when presetting temperature, can interrupt insulation program and preferentially enter the emergency procedure that cuts off heater element power supply, until temperature, be down to and can automatically exit emergency procedure while presetting temperature and recover to continue insulation program.

Subregion, replace at times, the heating of intersection, superposition is a kind of brand-new Intelligent heating of electronics drier for hearing aids.The more detailed rules and regulations heating-up temperature that region, period divide is more constant, and meanwhile, the combination of region, period optionally can combination in any.

Above foundation desirable embodiment of the present invention is enlightenment, and by above-mentioned description, related personnel can, within not departing from the scope of this invention technological thought, carry out various change and modification completely.The technical scope of this invention is not limited to the content on specification, must determine technical scope according to claim scope.

Claims

1. a hearing aids sterilization and drying device, comprise housing, the cap being connected with described housing folding, described cap and described housing form the host cavity of accommodating described hearing aids, it is characterized in that: the governor circuit, sterilisation circuit and the drying circuit that in described housing, be provided with power circuit, are connected with described power circuit, described power circuit comprises USB port, and described sterilisation circuit is all connected with described governor circuit with drying circuit.

2. hearing aids according to claim 1 sterilization and drying device, it is characterized in that: also comprise temperature collection circuit, described temperature collection circuit comprises a plurality of temperature sensors, and the output of a plurality of described temperature sensors is connected with described governor circuit by a bus.

3. hearing aids according to claim 1 sterilization and drying device, is characterized in that: also comprise display circuit, described display circuit is connected with described governor circuit, and described display circuit comprises LCD.

4. hearing aids according to claim 1 sterilization and drying device, is characterized in that: also comprise battery detection circuit, described battery detection circuit is connected with described governor circuit.

5. hearing aids according to claim 1 sterilization and drying device, is characterized in that: also comprise keying circuit and reset circuit, described keying circuit is all connected with described governor circuit with reset circuit.

6. hearing aids according to claim 1 sterilization and drying device, is characterized in that: described sterilisation circuit comprise ultraviolet light pipe, with the electric ballast that described ultraviolet light pipe is connected, described ultraviolet light pipe sends the ultraviolet light that wavelength is 200-280nm.

7. hearing aids according to claim 1 sterilization and drying device, is characterized in that: described drying circuit comprises the heater element that at least two groups work alone.

8. hearing aids according to claim 7 sterilization and drying device, is characterized in that: the described quantity difference of respectively organizing heater element.

9. hearing aids according to claim 8 sterilization and drying device, is characterized in that: described every group of heater element is uniformly distributed.

10. hearing aids according to claim 9 sterilization and drying device, is characterized in that: the described heater element space of respectively organizing distributes.