CN212258474U - Drying and charging device for split hearing aid - Google Patents
Drying and charging device for split hearing aid Download PDFInfo
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- CN212258474U CN212258474U CN202021041121.8U CN202021041121U CN212258474U CN 212258474 U CN212258474 U CN 212258474U CN 202021041121 U CN202021041121 U CN 202021041121U CN 212258474 U CN212258474 U CN 212258474U
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Abstract
The utility model discloses a split type drying and charging device for hearing aids, which belongs to the field of hearing aid charging and comprises a box body, wherein a power battery position and a charging battery position are arranged on the box body, a standby charging battery is detachably arranged in the charging battery position, a circuit board is arranged in the box body, and the power battery position charges a standby charging button battery in the charging battery position through the circuit board; the circuit board is connected with a master control single chip microcomputer, a discharge loop and a sampling loop, the sampling loop collects voltages at two ends of a rechargeable battery position and transmits the voltages to an interface of the master control single chip microcomputer, and the master control single chip microcomputer controls the discharge loop to discharge through an electronic load so as to eliminate the memory effect of the standby rechargeable battery. The utility model discloses have and to carry out the time of charging in advance and taking care of to the battery that the degree of depth is exhausted automatically to when charging completion back automatic shutdown, effectively eliminate memory effect, extension battery life's effect.
Description
Technical Field
The utility model relates to a audiphone technical field that charges, in particular to split type drying and charging device for audiphone.
Background
The hearing aid is an instrument for improving hearing, more than 150 million hearing aid users are newly added in China every year, more than 1500 million hearing aid users are newly added in the world, and the hearing aid has a huge user market. Modern hearing aid structures are gradually miniaturized, and meanwhile, the hearing aid is used as an important hearing aid, so that the use frequency is high, the use time is long, and a battery special for the hearing aid needs to continuously discharge for a long time. The special battery for the hearing aid is a button battery generally in order to meet the volume requirement, and has higher requirement on the capacity of the special battery for the hearing aid in order to meet the long-time discharge requirement, so that the charging function needs to be added.
The following problems exist in the prior art: the improper use of conventional rechargeable batteries such as nickel-chromium batteries, nickel-hydrogen batteries, lead-acid batteries, etc. can generate memory effects of different degrees, resulting in the problems of non-charging and insufficient charging, etc., which affect the service life of the batteries.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a split type is drying and charging device for hearing aid has and can accomplish the back automatic shutdown when battery charging, effectively eliminates memory effect, extension battery life's effect.
A drying and charging device for a split hearing aid comprises a box body, wherein a power supply battery position and a rechargeable battery position are arranged on the box body, a standby rechargeable battery is detachably arranged in the rechargeable battery position, a circuit board is arranged in the box body, and the power supply battery position charges a standby rechargeable button battery in the rechargeable battery position through the circuit board;
the circuit board is connected with a master control single chip microcomputer, a discharge loop and a sampling loop, the sampling loop collects voltages at two ends of a rechargeable battery position and transmits the voltages to an interface of the master control single chip microcomputer, and the master control single chip microcomputer controls the discharge loop to discharge through an electronic load so as to eliminate the memory effect of the standby rechargeable battery.
The utility model discloses further set up to: the master control single chip microcomputer is an STC15W401AS single chip microcomputer, the master control single chip microcomputer is connected with a discharge control circuit, the discharge control circuit comprises an optocoupler IC4 and a triode VT1, and the discharge loop comprises a resistor R20 and a triode VT 3;
the LED of P3.0 interface of master control singlechip with opto-coupler IC4 links to each other, the phototriode of opto-coupler IC4 links to each other with the projecting pole of triode VT1, the collecting electrode of triode VT1 links to each other with rechargeable battery position positive pole, R20 links to each other with the collecting electrode of triode VT3, the projecting pole of triode VT3 links to each other with the negative pole of power battery position, the base of triode VT3 is connected with resistance R28, R28 links to each other with the P3.6 interface of master control singlechip.
The utility model discloses further set up to: the sampling loop is connected with the rechargeable battery in parallel and comprises a resistor R21 and a potentiometer RP1, the resistor R21 is connected with the potentiometer RP1 in series, and a middle pin of the potentiometer RP1 is connected with a P1.0 pin of the main control singlechip.
The utility model discloses further set up to: the circuit board is connected with a DS2711 chip, a CC1 interface of the DS2711 chip is connected with a base electrode of a triode VT1, an emitting electrode of the triode VT1 is connected with the positive electrode of a power battery position, a collecting electrode of the triode VT1 is connected with the positive electrode of a rechargeable battery position, and a VP1 interface of the DS2711 chip is connected with the positive electrode of the rechargeable battery position.
The utility model discloses further set up to: the box body is including the end box, well box and the upper cover that connect gradually, power battery position and rechargeable battery position all set up in well box roof wall, be provided with drying device in the end box.
The utility model discloses further set up to: the drying device comprises a hanging basket and a drying agent, the drying agent is laid on the bottom wall of the bottom box, the hanging basket is installed in the bottom box and located above the drying agent, and a plurality of air holes are uniformly distributed in the bottom wall of the hanging basket.
The utility model discloses further set up to: an indicator lamp is arranged on the top wall of the middle box and is connected with an LED1 interface of the DS2711 chip.
The utility model discloses further set up to: the power supply battery position can be dismantled and connect 1.5V alkaline battery, the operating voltage of master control singlechip is 5V, the input voltage of DS2711 chip is 4.0-5.5V, the power supply battery position with master control singlechip and DS2711 chip are connected with boost circuit.
The utility model discloses further set up to: the side wall of the middle box is close to the top wall and the bottom wall and is in threaded connection with the top cover and the bottom box.
The utility model discloses further set up to: the number of the rechargeable battery bits is two.
The method comprises the following steps that a standby rechargeable battery is placed in a rechargeable battery position, after an alkaline battery is installed on a power supply battery position, the standby rechargeable battery enters a charging state, a sampling circuit detects the voltage of the rechargeable battery position and transmits the voltage to a main control single chip microcomputer, when the main control single chip microcomputer monitors that the voltage at two ends of the rechargeable battery position is greater than 0.9V and smaller than 1.3V, a discharging loop is conducted, the discharging control loop maintains the discharging state of the standby rechargeable battery, and memory damage caused by overcharging is effectively avoided; when the voltage at the two ends of the rechargeable battery is less than 0.9V, the discharge control circuit 5 and the discharge loop are cut off, the triode VT1 is separated from the P3.0 control, the connection between the CC1 port of the DS2711 chip and the triode VT1 is recovered, and the collector of the triode VT1 recovers the charging state of the rechargeable battery.
To sum up, the utility model discloses following beneficial effect has:
1. through the arrangement of the master control single chip microcomputer, the discharge loop and the sampling loop, the master control single chip microcomputer controls the discharge loop to discharge through the electronic load so as to eliminate the memory effect of the standby rechargeable battery;
2. through the discharge control formed by the optocoupler IC4 and the triode VT1, when the voltage at two ends of the rechargeable battery is more than 0.9V and less than 1.3V, the charging state is cut off, and the discharge state of the rechargeable battery is maintained;
3. through rechargeable battery position and power battery position connect in the box in and install the drying device in the end box, the dry integration of charging improves and uses the portability.
Drawings
Fig. 1 is a schematic structural diagram for embodying the whole of the present invention;
FIG. 2 is an exploded view of the present invention for showing the structure of each part;
fig. 3 is a schematic structural diagram of a middle box according to the present invention;
fig. 4 is a circuit diagram of the present invention.
In the figure, 1, a box body; 11. a top cover; 12. a middle box; 121. a rechargeable battery bit; 122. a power supply battery position; 123. an indicator light; 124. a circuit board; 13. a bottom case; 2. a master control singlechip; 3. a discharge loop; 4. a sampling loop; 5. a discharge control circuit; 51. an optocoupler IC 4; 52. a transistor VT 1; 6. DS2711 chip; 7. a drying device; 71. a hanging basket; 711. air holes are formed; 72. a desiccant; 8. a booster circuit.
Detailed Description
The present invention will be described in detail with reference to the attached drawings, and other advantages and effects of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification. In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also regarded as the scope of the present invention without substantial changes in the technical content.
Example (b):
as shown in fig. 1 to fig. 3, for the utility model discloses a split type is drying and charging device for hearing aid, including box body 1, box body 1 comprises top cap 11, well box 12 and end box 13, and end box 13 internal connection has and is used for carrying out dry drying device 7 to the hearing aid, and power battery position 122 and rechargeable battery position 121 have been seted up to well box 12 roof, and the rechargeable battery demountable installation is in rechargeable battery position 121 in preparing, can dismantle in the power battery position 122 and connect No. 5 alkaline batteries. The circuit board 124 is installed in the middle box 12, the power battery position 122 and the charging battery position 121 are connected with the circuit board 124 through electrode reeds, and the current of the No. five alkaline battery flows into the standby charging battery through the positive electrode reed of the power battery position 122 and the circuit board 124 to charge the standby charging battery.
As shown in fig. 2, the box body 1 includes a bottom box 13, a middle box 12 and an upper cover which are connected in sequence, the bottom box 13, the middle box 12 and the upper cover are all connected through threads, a power battery position 122 and a rechargeable battery position 121 are both arranged on the top wall of the middle box 12, and a drying device 7 is arranged in the bottom box 13. The drying device 7 comprises a hanging basket 71 and a drying agent 72, the drying agent 72 is laid on the bottom wall of the bottom box 13, the hanging basket 71 is arranged in the bottom box 13 and is positioned above the drying agent 72, a plurality of air holes 711 are uniformly distributed on the bottom wall of the hanging basket 71, and the drying agent 72 is dry cakes or dry particles. The audiphone receives moisture in the duct and moisture influences in the air after using for a long time and becomes moist, easily breeds the bacterium, causes the influence to user health, places the audiphone in hanging flower basket 71 this moment, hangs hanging flower basket 71 in end box 13, screws up well box 12 with end box 13 again, and drier 72 dehumidifies the audiphone, effectively avoids later stage bacterium to breed.
As shown in fig. 4, the circuit board 124 is connected with a master control single chip microcomputer 2, a discharge control circuit 5, a discharge loop 3, a DS2711 chip 6 and a sampling loop 4, the master control single chip microcomputer 2 is an STC15W401AS single chip microcomputer, the master control single chip microcomputer 2 is connected with the discharge control circuit 5, the discharge control circuit 5 comprises an optocoupler IC451 and a triode VT152, and the discharge loop 3 comprises a resistor R20 and a triode VT 3; the P3.0 interface of the master control singlechip 2 is connected with a light emitting diode of the optocoupler IC451, a phototriode of the optocoupler IC451 is connected with an emitting electrode of a triode VT152, a collecting electrode of the triode VT152 is connected with the positive electrode of the rechargeable battery position 121, R20 is connected with a collecting electrode of a triode VT3, an emitting electrode of a triode VT3 is connected with the negative electrode of the power supply battery position 122, the base electrode of the triode VT3 is connected with a resistor R28, and R28 is connected with the P3.6 interface of the master control singlechip 2.
As shown in fig. 4, the sampling loop 4 is connected in parallel with the rechargeable battery bit 121, the sampling loop 4 includes a resistor R21 and a potentiometer RP1, the resistor R21 is connected in series with the potentiometer RP1, and a middle pin of the potentiometer RP1 is connected to a pin P1.0 of the main control single chip microcomputer 2. The CC1 interface of the DS2711 chip 6 is connected with the base of the polar tube VT152 and then connected with the anode of the power battery position 122, the collector of the polar tube VT152 is connected with the anode of the rechargeable battery position 121, and the VP1 interface of the DS2711 chip 6 is connected with the anode of the rechargeable battery position 121.
When charging the rechargeable battery, the charging circuit is connected, the voltage at two ends of the rechargeable battery collected by the sampling circuit 4 is transmitted to the pin P1.0 of the main control single chip microcomputer 2, and when the main control single chip microcomputer 2 detects that 0.9V < 121V of the rechargeable battery, the voltage is <1.3V, the main control single chip microcomputer 2 sends out two instructions simultaneously:
the first instruction is that: the P3.6 interface outputs high level to make the triode VT3 forward biased and conductive, the standby rechargeable battery in the rechargeable battery bit 121 passes through the positive pole → the resistor R20 → the triode VT3 collector → the triode VT3 emitter to ground → the standby rechargeable battery negative pole, forming the discharging loop 3;
and a second instruction: the P3.0 interface outputs low level, a light emitting diode of the optocoupler IC451 is forward biased, conducted and emits light, a phototriode is conducted by illumination, a base electrode of the triode VT152 is pulled to a power supply position, and reverse biased cut-off is carried out. The charging power supply is cut off, and the discharge state of the rechargeable battery is maintained. When the standby rechargeable battery is full of electricity and the charging is not stopped in the charging process, the discharging loop 3 starts to discharge electricity, and the discharging control loop cuts off the power supply, so that the memory effect caused by overcharging is effectively avoided;
when the sampling loop 4 acquires that the voltage at the two ends of the rechargeable battery is below 0.9V, the main control single chip microcomputer 2 sends out two instructions simultaneously:
and instruction three: the P3.6 interface outputs low level, the triode VT3 is reversely biased to cut off, the discharging circuit is cut off, and the battery stops discharging;
and fourth, instruction: the P3.0 interface outputs high level, the light emitting diode of the optocoupler IC451 is reversely biased to stop emitting light, the phototriode is cut off, the triode VT1 is controlled to be separated from the P3.0, the base electrode of the triode VT1 is recovered to be connected with the CC1 interface of the DS2711 chip 6, and the collector electrode continues to charge the standby battery.
As shown in fig. 3 and 4, the number of the rechargeable battery sites 121 is two, two indicator lights 123 are installed on the top wall of the middle box 12 corresponding to the two rechargeable battery sites 121, two sets of discharge circuits, a discharge control circuit 5 and a sampling circuit are installed corresponding to the two rechargeable battery sites 121, the other set of sampling circuit is connected in parallel with the other rechargeable battery site 121 and comprises a resistor R25 and a potentiometer RP2 which are connected in series, and a middle pin of the potentiometer RP2 is connected with a P1.1 interface of the main control single chip microcomputer 2. The CC2 interface of the DS2711 chip 6 is connected to the positive pole of another power cell bit 122, and the VP2 interface of the DS2711 chip 6 is connected to the positive pole of another rechargeable cell bit 121.
As shown in fig. 4, the discharge control circuit 5 includes an optocoupler IC5 and a transistor VT2, and the discharge loop 3 includes a resistor R24 and a transistor VT 4; the P3.0 interface of the main control single chip microcomputer 2 is connected with a light emitting diode of the optocoupler IC451, a phototriode of the optocoupler IC451 is connected with an emitting electrode of a triode VT2, a collecting electrode of a triode VT2 is connected with the positive electrode of another rechargeable battery position 121, R24 is connected with a collecting electrode of a triode VT4, an emitting electrode of the triode VT4 is connected with the negative electrode of a power battery position 122, a base electrode of a triode VT4 is connected with a resistor R29, R29 is connected with the P3.7 interface of the main control single chip microcomputer 2, a base electrode of the triode VT2 is connected with a CC2 interface of the DS2711 chip 6, instructions are the same as the instructions, and are not.
As shown in FIG. 4, two indicator lights 123 are interfaced with LED1 and LED2 of DS2711 chip 6, respectively. The power battery position 122 is connected with the main control singlechip 2 and the DS2711 chip 6 through a booster circuit 8. The working voltage of the main control singlechip 2 is 5V, the input voltage of the DS2711 chip 6 is 4.0-5.5V, the booster circuit 85 comprises capacitors C1, C3 and C4, resistors R1, R2, R3 and R4, an inductor L and an NCP1422 chip, the C1 is connected with the power supply battery position 122 in parallel, and the R3 and the R4 are connected with each other in series and then connected with the power supply battery position 122 in parallel;
the cathode of the R3 is connected with the LBI/EN interface of the NCP1422 chip, the OUT interface of the NCP1422 chip is connected with the CC1 port and the CC2 port of the DS2711 chip 621 through a bus, one end of the R1 is connected with the bus, the other end is connected with the FB interface of the NCP1422 chip, the C4 is connected with the R1 in parallel and is connected with the R2, one end of the C3 is connected with the REF interface of the NCP1422 chip, and the other end is connected with the cathode of the power battery position 122. One end of the inductor L is connected to the positive electrode of the power battery bit 122, and the other end is connected to the LX interface of the NCP1422 chip; the BAT interface of the NCP1422 chip is connected to the positive terminal of the power cell bit 122.
The built-in power supply of the embodiment adopts the No. 5 non-rechargeable battery, so that the button battery can be charged without an external power supply, and the button battery is convenient to carry when going out; no. 5 alkaline battery low price, convenient material acquisition, and optional No. 5 battery of using, further improve the convenience. One No. 5 alkaline battery can charge the 675 rechargeable button battery with the maximum specification and the maximum capacity for more than forty times, and is durable and environment-friendly.
The implementation principle of the above embodiment is as follows: the standby rechargeable battery is placed in the rechargeable battery position 121, after the alkaline battery is installed on the power supply battery position 122, the standby rechargeable battery enters a charging state, the sampling circuit detects the voltage of the rechargeable battery position 121 and transmits the voltage to the main control single chip microcomputer 2, when the main control single chip microcomputer 2 monitors that the voltage at two ends of the rechargeable battery position 121 is greater than 0.9V and smaller than 1.3V, the discharging loop 3 is conducted, the discharging control loop maintains the discharging state of the standby rechargeable battery, and memory damage caused by overcharging is effectively avoided; when the voltage at the two ends of the rechargeable battery bit 121 is less than 0.9V, the discharge control circuit 5 and the discharge loop 3 are cut off, the triode VT152 is separated from the P3.0 control, the connection between the CC1 port of the DS2711 chip and the triode VT152 is recovered, and the collector of the triode VT1 recovers the charging state of the rechargeable battery bit 121.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a split type drying and charging device for hearing aid which characterized in that: the rechargeable button cell charger comprises a box body (1), wherein a power supply battery position (122) and a rechargeable battery position (121) are arranged on the box body (1), a rechargeable battery is detachably mounted in the rechargeable battery position (121), a circuit board (124) is mounted in the box body (1), and the power supply battery position (122) charges a rechargeable button cell in the rechargeable battery position (121) through the circuit board (124);
the charging circuit is characterized in that the circuit board (124) is connected with a main control single chip microcomputer (2), a discharging loop (3) and a sampling loop (4), the sampling loop (4) collects voltages at two ends of a charging battery position (121) and transmits the voltages to an interface of the main control single chip microcomputer (2), and the main control single chip microcomputer (2) controls the discharging loop (3) to discharge through an electronic load so as to eliminate the memory effect of a standby charging battery.
2. The drying and charging device for a split hearing aid according to claim 1, wherein: the master control single chip microcomputer (2) is an STC15W401AS single chip microcomputer, the master control single chip microcomputer (2) is connected with a discharge control circuit (5), the discharge control circuit (5) comprises an optical coupler IC4(51) and a triode VT1(52), and the discharge loop (3) comprises a resistor R20 and a triode VT 3;
the LED of P3.0 interface of master control singlechip (2) and opto-coupler IC4(51) link to each other, the phototriode of opto-coupler IC4(51) links to each other with the projecting pole of triode VT1(52), the collecting electrode of triode VT1(52) links to each other with rechargeable battery position (121) positive pole, R20 links to each other with the collecting electrode of triode VT3, the projecting pole of triode VT3 links to each other with the negative pole of power battery position (122), the base of triode VT3 is connected with resistance R28, R28 links to each other with the P3.6 interface of master control singlechip (2).
3. The drying and charging device for a split hearing aid according to claim 2, wherein: the sampling loop (4) is connected with the rechargeable battery position (121) in parallel, the sampling loop (4) comprises a resistor R21 and a potentiometer RP1, the resistor R21 is connected with the potentiometer RP1 in series, and a middle pin of the potentiometer RP1 is connected with a P1.0 pin of the main control single chip microcomputer (2).
4. The drying and charging device for a split hearing aid according to claim 3, wherein: the circuit board (124) is connected with a DS2711 chip (6), a CC1 interface of the DS2711 chip (6) is connected with a base electrode of a triode VT1(52), an emitting electrode of the triode VT1(52) is connected with the positive electrode of a power supply battery position (122), a collecting electrode of the triode VT1 is connected with the positive electrode of a rechargeable battery position (121), and a VP1 interface of the DS2711 chip (6) is connected with the positive electrode of the rechargeable battery position (121).
5. The drying and charging device for a split hearing aid according to claim 1, wherein: the box body (1) comprises a bottom box (13), a middle box (12) and an upper cover which are sequentially connected, a power battery position (122) and a rechargeable battery position (121) are both arranged on the top wall of the middle box (12), and a drying device (7) is arranged in the bottom box (13).
6. The drying and charging device for a split hearing aid according to claim 5, wherein: drying device (7) include hanging flower basket (71) and drier (72), drier (72) are laid on end box (13) diapire, hanging flower basket (71) are installed in end box (13) and are located drier (72) top, evenly distributed has a plurality of bleeder vents (711) on hanging flower basket (71) diapire.
7. The drying and charging device for a split hearing aid according to claim 6, wherein: an indicator light (123) is installed on the top wall of the middle box (12), and the indicator light (123) is connected with an LED1 interface of the DS2711 chip (6).
8. The drying and charging device for a split hearing aid according to claim 4, wherein: the power supply battery position (122) can be detachably connected with a 1.5V alkaline battery, the working voltage of the main control single chip microcomputer (2) is 5V, the input voltage of the DS2711 chip (6) is 4.0-5.5V, and the power supply battery position (122) is connected with the main control single chip microcomputer (2) and the DS2711 chip (6) through a booster circuit (8).
9. The drying and charging device for a split hearing aid according to claim 5, wherein: the side wall of the middle box (12) is in threaded connection with the top cover (11) and the bottom box (13) at the positions close to the top wall and the bottom wall.
10. The drying and charging device for a split hearing aid according to claim 9, wherein: the number of the rechargeable battery bits (121) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021041121.8U CN212258474U (en) | 2020-06-09 | 2020-06-09 | Drying and charging device for split hearing aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021041121.8U CN212258474U (en) | 2020-06-09 | 2020-06-09 | Drying and charging device for split hearing aid |
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| Publication Number | Publication Date |
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| CN212258474U true CN212258474U (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021041121.8U Active CN212258474U (en) | 2020-06-09 | 2020-06-09 | Drying and charging device for split hearing aid |
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| CN (1) | CN212258474U (en) |
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