CN2563878Y

CN2563878Y - Humidify removing box for hearing-aid

Info

Publication number: CN2563878Y
Application number: CN 02240663
Authority: CN
Inventors: 朱国安
Original assignee: ZHU GUO AN
Current assignee: ZHU GUO AN
Priority date: 2002-06-25
Filing date: 2002-06-25
Publication date: 2003-07-30
Anticipated expiration: 2012-06-25

Abstract

The utility model relates to a special de-humidifying box for hearing aid, which comprises a box body and a de-humidifying circuit, wherein the box body is provided with a dehumidification room for accommodating hearing aid, a heat conduction plate is arranged at bottom side of the dehumidification room, a panel is arranged on the box body, a cover body is arranged on the box body, the cover body can just be covered above the dehumidification room, the cover body is provided with ventilation holes, the dehumidification circuit is provided with a heating component, the heating component is tightly bonded on the bottom face of the heat conduction plate of the box body, the heating component is a PTC ceramic heater; the utility model also comprises a power supply circuit that is composed of an AC drop voltage circuit, a rectification circuit, a filter circuit and a voltage regulation circuit, the power supply circuit can provide DC power to various circuits, a sterilization circuit is arranged on the side wall of the dehumidification room, a battery measuring circuit and a battery polarity detection circuit are arranged on the panel of the box body. The utility model can perform constant-temperature dehumidification and sterilization and also has the function of measuring battery capacity of hearing aid, moreover the utility model has convenient use and ideal effect.

Description

The special-purpose desiccant cartridge of hearing aids

One, technical field

The utility model relates to the hearing appurtenance, relates in particular to the special-purpose desiccant cartridge of a kind of hearing aids.

Two, background technology

Because hearing aids is a kind of hearing appurtenance that plugs in the deaf individual ear, therefore, hearing aids is plugging when using in ear, moisture that can Yin Ernei and making moist, so that reduce the sensitivity of hearing aids, even cause damage.So hearing aids must take off and dehumidify in use for some time, with the sensitivity and the useful life of guaranteeing hearing aids.

The special-purpose desiccant cartridge of existing hearing aids, as Fig. 1, shown in Figure 2, comprise that mainly a box body 10 and removes wet circuit 20, wherein, box body 10 (shown in Figure 1) is to have disconnected heat by a kind of, the box body that insulation material (as plastic cement material) is made, box body 10 is provided with one and removes moist chamber 11 for what hearing aids was placed, remove moist chamber 11 bottom sides and be provided with a heat-conducting plate 12, for avoiding hearing aids directly to contact with heat-conducting plate 12, usually lay one deck flannelette 13 again on heat-conducting plate 12, be provided with a panel 14 on box body 10, this box body 10 also is provided with a lid 15, lid 15 just can cover and be located at except that moist chamber 11 tops, and lid 15 is provided with air dispelling hole 16.Remove wet circuit 20 (shown in Figure 2), form by elements such as a mains switch SW1, temperature switch TSW1, heater H T1, LED 1, diode D1, resistor R 1, wherein, mains switch SW1, LED 1 are located on box body 10 panels 15, and temperature switch TSW1, heater H T1 closely are sticked in heat-conducting plate 12 bottom surfaces of box body 10; When mains switch SW1 is conducting state, electric current is the heater H T1 that flows through via temperature switch TSW1, make heater H T1 heating produce certain temperature, on the heat-conducting plate 12 of this temperature through conducting to box body 10, and in removing moist chamber 11, produce uniform temperature so that hearing aids is dehumidified; Simultaneously, electric current is via diode D1, resistor R 1 and the LED 1 of flowing through makes LED 1 conducting luminous, with the expression heater H T1 place operate condition of heating.When the temperature of heater H T1 heating generation rises to the rated value that sets, temperature switch TSW1 tripping is off state, make the heater H T1 action that stops to heat, this moment, LED 1 also can no longer conducting be luminous because of temperature switch TSW1 tripping is off state, was in expression heater H T1 to stop the operate condition of heating.When the temperature of device HT1 to be heated dropped to the rated value that sets, temperature switch TSW1 began to be conducting state, made heater H T1 generate heat again and heated, and then produce and keep the temperature that hearing aids is dehumidified.

From the structure of the special-purpose desiccant cartridge of above-mentioned existing hearing aids as can be known, though it is heated by heater H T1 heating, hearing aids is produced the effect of dehumidifying, but because the employed heater H T1 of the special-purpose desiccant cartridge of existing hearing aids is a kind of resistive conductor heater element, this resistive conductor heater element can be along with variations in temperature changes owing to its resistance value and current value, so that when its heating is heated to predetermined temperature, can not produce thermostatic effect automatically, must cooperate serial connection one temperature switch TSW1 to control, heater H T1 is heated in certain temperature range internal heat generation, otherwise the heating that heater H T1 will continue is heated, use abnormally dangerously, and power consumption is big.Moreover, because the special-purpose desiccant cartridge of existing hearing aids is to carry out control heater HT1 with temperature switch TSW1 to heat in certain temperature range internal heat generation, and the outage sensing temperature of temperature switch TSW1 has suitable temperature difference with the telegram in reply sensing temperature, so that heater H T1 can't produce the hearing aids of a temperature confession stably dehumidifying, thereby influence dehumidification rate, and the frequent switch motion of temperature switch TSW1 is fatigue aging and breaking down easily also, and influences the useful life of other elements.Again, because hearing aids is plugged in ear for a long time and uses, therefore, hearing aids is also multiplied bacterium easily except making moist easily.The special-purpose desiccant cartridge of existing hearing aids removes and can produce exsiccation to hearing aids, and has and suppress to a certain degree outside the effect that bacterium multiplies, and the effect of sterilization can't effectively be provided, so can't improve the sanitation performance that hearing aids uses.In addition, all at present hearing aidss use so that plug in ear for reduced volume, and its power supply all adopts mercury battery, though and mercury battery electric power can be for the use of hearing aids long period, the electric power of mercury battery can influence the serviceability of hearing aids.In order to keep the serviceability of hearing aids the best, mercury battery must regularly take off measures its electric weight, also measures the electric weight of mercury battery usually in dehumidifying simultaneously.But the special-purpose desiccant cartridge of existing hearing aids does not possess the function of measuring the mercury battery electric weight, so, increased inconvenience to the user again.

Three, summary of the invention

Main purpose of the present utility model is to overcome the above-mentioned shortcoming that the special-purpose desiccant cartridge of existing hearing aids exists, and provides a kind of hearing aids special-purpose desiccant cartridge, and it can constant temperature dehumidification, sterilization, and has the function of measuring the hearing aids battery electric quantity.

The purpose of this utility model is realized by following technical scheme.

The special-purpose desiccant cartridge of the utility model hearing aids, include box body, remove wet circuit, this box body is provided with a moist chamber that removes for the hearing aids placement, the bottom side of removing moist chamber is provided with a heat-conducting plate, box body is provided with a panel, box body is provided with a lid, lid just can cover society remove moist chamber above, lid is provided with air dispelling hole; Should remove wet circuit and be provided with a heater element, this heater element closely is sticked in the heat-conducting plate bottom surface of box body; Its improvements in, described heater element is a positive temperature coefficient ceramic heater; Also be provided with power circuit, it is made up of ac buck, rectification, filtering, voltage stabilizing circuit, provides DC power supply to each circuit.

The purpose of this utility model can also further realize by following technical measures.

The special-purpose desiccant cartridge of aforesaid hearing aids, the sidewall that wherein removes moist chamber is provided with a sterilization circuit, this sterilization circuit is provided with several ultraviolet ray emitting elements, this ultraviolet ray emitting element is one can send the light-emitting diode of ultraviolet, can produce bactericidal action to hearing aids by the ultraviolet that ultraviolet LED sent.

The special-purpose desiccant cartridge of aforesaid hearing aids, wherein the box body panel is provided with a cell measurement circuit, this cell measurement circuit is made up of several comparators, triode, several indicator lights, several voltage grading resistors, a battery measurement groove and a peripheral subsidiary component thereof, wherein, indicator light is a light-emitting diode; Cell measurement circuit is by the dividing potential drop of voltage grading resistor, make the positive input terminal of each comparator be respectively equipped with a different reference voltage value, when the mercury battery voltage of accepting to measure is higher than the reference voltage value of several comparator positive input terminals respectively, it is luminous that several indicator lights can be distinguished conducting, and then can be by what of indicator light conducting amount of luminescence, expression accepts to measure the electric weight of battery.

The special-purpose desiccant cartridge of aforesaid hearing aids, wherein the box body panel is provided with a battery polar circuit for detecting, and this battery polar circuit for detecting is made up of an optical coupling triode, triode, indicator light and peripheral subsidiary component thereof, and wherein, indicator light is a light-emitting diode; When the mercury battery of accept measuring was inserted the battery measurement groove with opposite polarity, the optical coupling triode was driven and is conducting state, and then drove triode and be conducting state, made the indicator light conducting luminous, reached the purpose of reminding the user.

Four, description of drawings

Fig. 1 is the special-purpose desiccant cartridge combining structure of an existing hearing aids schematic diagram.

Fig. 2 is the special-purpose desiccant cartridge dehumidifying of an existing hearing aids circuit diagram.

Fig. 3 is the special-purpose desiccant cartridge combining structure of a utility model hearing aids schematic diagram.

Fig. 4 is the special-purpose desiccant cartridge power circuit diagram of the utility model hearing aids.

Fig. 5 is that the special-purpose desiccant cartridge of the utility model hearing aids removes wet circuit and sterilization circuit diagram.

Fig. 6 is the special-purpose desiccant cartridge cell measurement circuit of the utility model hearing aids figure.

The number in the figure explanation:

The prior art part:

10 box bodys, 11 remove moist chamber, 12 heat-conducting plates, 13 flannelettes, 14 panels, 15 lids,

16 air dispelling holes, 20 remove wet circuit;

The utility model part:

30 box bodys, 31 remove moist chamber, 32 heat-conducting plates, 33 flannelettes, 34 panels, 35 lids,

36 air dispelling holes, 40 power circuits, 50 remove wet circuit, 60 sterilization circuit, 70 cell measurement circuit,

71 battery measurement grooves, 80 battery polar circuit for detecting.

Five, embodiment

Consult Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, the special-purpose desiccant cartridge of the utility model hearing aids includes a box body 30, power circuit 40, removes wet circuit 50, sterilization circuit 60, cell measurement circuit 70 and a battery polar circuit for detecting.

Consult shown in Figure 3, this box body 30 is box bodys of being made by a kind of material (as plastic cement material) with disconnected heat, insulation, box body 30 is provided with one and removes moist chamber 31 for what hearing aids was placed, the bottom side of removing moist chamber 31 is provided with a heat-conducting plate 32, directly contacts with heat-conducting plate 32 for avoiding hearing aids, lays one deck flannelette 33 usually on heat-conducting plate 32, and on box body 30, be provided with a panel 34, box body 30 also is provided with a lid 35, and lid 35 just can cover the top that is located at except that moist chamber 31, and lid 35 is provided with air dispelling hole 36.

Consult shown in Figure 4, the utility model power circuit 40 is made up of a transformer T1, rectifier diode D1, capacitor C1 and C2, pressurizer U1 and power supply indicator LED1, the effect of this power circuit 40 is that AC voltage drop, rectification, filtering, voltage stabilizing are combined to form a direct current, to each circuit supply.

Consult shown in Figure 5ly, should remove wet circuit 50 and form by a switch SW 1, flip-flop U2, triode Q1, indicator light LED2, relay R L1, ceramic heater PTC and peripheral subsidiary component thereof; Wherein switch SW 1 is a push type normal open switch, is arranged on the panel 34 of box body 30; Flip-flop U2 is a D shape flip-flop, and indicator light LED2 is a light-emitting diode, is arranged on the panel 34 of box body 30, and ceramic heater PTC is a positive temperature coefficient ceramic heater element, and heat-conducting plate 32 ground at box body 30 closely are sticked.When first time during push switch SW1, flip-flop U2 can be to high potential signal of base stage output of triode Q1, make triode Q1 be conducting state, make relay R L1 action, and make the normal opened contact closure of relay R L1 be conducting state, and then making ceramic heater RTC that heating power is heated, the heat-conducting plate 32 via box body 30 conducts again, so that hearing aids is carried out heating and dehumidification; Simultaneously, indicator light LED2 conducting is luminous, and PTC is in the operate condition of heating with the expression ceramic heater.When second time during push switch SW1, flip-flop U2 can be to low-potential signal of base stage output of triode Q1, make triode Q1 be cut-off state, make relay R L1 stop action, and make the normal opened contact tripping of relay R L1 be closed circuit state, and then make ceramic heater RTC outage stopping heating heating, at this moment, indicator light LED3 also stops luminous by conducting.

Consult shown in Figure 5ly, sterilization circuit 60 is made up of a switch SW 2, flip-flop U3, triode Q2, indicator light LED3, several ultraviolet ray emitting elements UVLED1, UVLED2 and peripheral subsidiary component thereof; Wherein switch SW 2 is a push type normal open switch, is arranged on the panel 34 of box body 30; Flip-flop U3 is a D shape flip-flop, indicator light LED3 is a light-emitting diode, be arranged on the panel 34 of box body 30, ultraviolet ray emitting element UVLED1, ultraviolet ray emitting element UVLED2 one can send the light-emitting diode of ultraviolet, are arranged on removing on the sidewall of moist chamber 31 of box body 30.When first time during push switch SW2, flip-flop U3 can be to high potential signal of base stage output of triode Q1, make triode Q2 be conducting state, make ultraviolet ray emitting element UVLED1, ultraviolet ray emitting element UVLED2 conducting luminous, and then the ultraviolet that is sent by ultraviolet ray emitting element UVLED1, ultraviolet ray emitting element UVLED2 carry out sterilization to hearing aids; Simultaneously, indicator light LED3 conducting is luminous, is in the luminous sterilizing operate condition with expression ultraviolet ray emitting element UVLED1, UVLED2.When second time during push switch SW2, flip-flop U3 can be to low-potential signal of base stage output of triode Q2, make triode Q2 be cut-off state, make ultraviolet ray emitting element UVLED1, UVLED2 be cut-off state, and then make ultraviolet ray emitting element UVLED1, UVLED2 stop luminous sterilizing, at this moment, indicator light LED3 also stops luminous by conducting.

Consult shown in Figure 6, cell measurement circuit 70 is by several comparators U4, U5, U6, U7, a triode Q3, several indicator lights LED4, LED5, LED6, LED7, LED8, several voltage grading resistors R13, R14, R15, R16, R17, a battery measurement groove 71 and peripheral subsidiary component thereof are formed; Wherein, indicator light LED4, LED5, LED6, LED7, LED8 is a light-emitting diode, be arranged on the panel 34 of box body 30, this battery measurement groove 71 is arranged on the panel 34 of box body 30, insert when measuring for the used mercury battery of hearing aids, cell measurement circuit 70 is by voltage grading resistor R13, R14, R15, R16, the dividing potential drop of R17, make each comparator U4, U5, U6, the positive input terminal of U7 has a different reference voltage value V2 respectively, V3, V4, V5, and V2＜V3＜V4＜V5, when the mercury battery voltage of accepting to measure is enough to drive triode Q3 (being that cell voltage is higher than V1), indicator light LED4 conducting is luminous, when the mercury battery voltage of accepting to measure is higher than comparator U4 respectively, U5, U6, the reference voltage value V2 of U7 positive input terminal, V3, V4, during V5, indicator light LED5, LED6, LED7, conducting is luminous respectively for LED8, because comparator U4, U5, U6, reference voltage V 2＜V3＜V4＜the V5 of U7 positive input terminal, so indicator light LED4, LED5, LED6, LED7, the luminous quantity of LED8 conducting is many more, and the electric weight of expression mercury battery is also many more.When the mercury battery undertension of accept measuring when driving triode Q3 (being that cell voltage is lower than V1), indicator light LED4, LED5, LED6, LED7, LED8 are can't conducting luminous, and then the number by indication LED 4, LED5, LED6, LED7, LED8 conducting amount of luminescence, can reach measurement easy to use and learn the electric weight of mercury battery.

Consult shown in Figure 6, battery polar circuit for detecting 80 is made up of optical coupling triode Q4, triode Q5, indicator light LED9 and a peripheral subsidiary component thereof, wherein, indicator light LED9 is a light-emitting diode, is arranged on the panel 34 of box body 30, when the mercury battery of accepting to measure is inserted battery measurement groove 71 with opposite polarity, optical coupling triode Q4 is driven and is conducting state, then drive triode Q5 and be conducting state, make indicator light LED9 conducting luminous, reach the purpose of reminding the user.

The utlity model has following advantage: 1, because the wet circuit 50 employed heater elements that remove of the present utility model are a ceramic heater PTC, and ceramic heater PTC is because of having the characteristic of positive temperature coefficient, it also is the temperature high more characteristic of high resistance more, therefore, when the initial stage that ceramic heater PTC is heating, because its resistance value is little, electric current is big, and makes ceramic heater PTC Fast Heating at short notice, reaches predetermined temperature.Yet when ceramic heater PTC heated the temperature that reaches specified, its resistance value fast lifting made the electric current of circulation in the ceramic heater littler; So the ceramic heater PTC that the utility model uses does not need to cooperate other elements (as, temperature switch) again, can play stable thermostatic effect, and then improve dehumidification rate, and improve the life-span of the fail safe and the use of its use.2, the utility model is provided with a sterilization circuit 60, and this sterilization circuit 60 can send ultraviolet hearing aids is carried out effective sterilization, therefore, can improve the sanitation performance of hearing aids.3, the utility model is provided with cell measurement circuit 70, measure electric weight for the employed mercury battery of hearing aids, and the structure of measuring can clearly be shown by indicator light LED4, LED5, LED6, LED7, LED8, use easy and simple to handle, everybody can use, especially the hearing aids majority is that the elderly uses, and allows the elderly feel convenient.4, the utility model is provided with a battery polar circuit for detecting 80, when the mercury battery of accepting to measure is measured electric weight with opposite polarity, also can be luminous by indicator light LED9 conducting, and reach the effect of reminding the user, make its use safer, convenient.

From the above and embodiment shown in the drawings as can be known, but the utility model constant temperature dehumidification, sterilization, and can provide the desiccant cartridge of measuring the battery electric quantity that hearing aids uses, compare with the special-purpose desiccant cartridge of existing hearing aids, have significant practicality and progressive, and unprecedented really, meet the application important document of utility model patent, so, file an application in accordance with the law.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims

1, the special-purpose desiccant cartridge of a kind of hearing aids, include box body, remove wet circuit, this box body is provided with a moist chamber that removes for the hearing aids placement, the bottom side of removing moist chamber is provided with a heat-conducting plate, box body is provided with a panel, box body is provided with a lid, and lid just can cover the top that is located at except that moist chamber, and lid is provided with air dispelling hole; Should remove wet circuit and be provided with a heater element, this heater element closely is sticked in the heat-conducting plate bottom surface of box body; It is characterized in that described heater element is a positive temperature coefficient ceramic heater; Also be provided with power circuit, it is made up of ac buck, rectification, filtering, voltage stabilizing circuit, provides DC power supply to each circuit.

2, the special-purpose desiccant cartridge of hearing aids according to claim 1, it is characterized in that, the described sidewall that removes moist chamber is provided with a sterilization circuit, and this sterilization circuit is provided with several ultraviolet ray emitting elements, and this ultraviolet ray emitting element is one can send the light-emitting diode of ultraviolet.

3, the special-purpose desiccant cartridge of hearing aids according to claim 1, it is characterized in that, described box body panel is provided with a cell measurement circuit, this cell measurement circuit is made up of several comparators, triode, several indicator lights, several voltage grading resistors, a battery measurement groove and a peripheral subsidiary component thereof, wherein, indicator light is a light-emitting diode.

4, the special-purpose desiccant cartridge of hearing aids according to claim 1, it is characterized in that, described box body panel is provided with a battery polar circuit for detecting, this battery polar circuit for detecting is made up of an optical coupling triode, triode, indicator light and peripheral subsidiary component thereof, wherein, indicator light is a light-emitting diode.