CN207234474U - A kind of charging base and electronic product - Google Patents
A kind of charging base and electronic product Download PDFInfo
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- CN207234474U CN207234474U CN201721328169.5U CN201721328169U CN207234474U CN 207234474 U CN207234474 U CN 207234474U CN 201721328169 U CN201721328169 U CN 201721328169U CN 207234474 U CN207234474 U CN 207234474U
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Abstract
The utility model discloses a kind of charging base and electronic product, detects the connection of the charging pins of charging base and the charging pins of electronic product by being inserted into detection unit, and export detection signal to the insertion test side of main control unit；Main control unit is according to the detection signal for being inserted into test side, generate charging control signal and export to Charge Management unit, Charge Management unit control electric energy output end output electric energy, charge for electronic product, solve the problems, such as electronic product charging inconvenience, can easily be charged using charging base to electronic product, extend the usage time of electronic product, meet user demand, improve user experience.
Description
Technical field
The utility model belongs to charging technique field, is to be related to a kind of charging base and electronic product specifically.
Background technology
Intelligent watch is greatly favored by consumers since function, good market prospect.
But since intelligent watch function is more, power consumption is more severe, cause stand-by time shorter, it is necessary to which regular fill
Electricity.But user go on business in tourism process, can not timely and conveniently find external power supply, cause intelligent watch charging inconvenience, nothing
Method meet user go on business in tourism the long period use demand, usage experience is poor.
The content of the invention
The utility model provides a kind of charging base, solves the problems, such as electronic product charging inconvenience.
In order to solve the above technical problems, the utility model is achieved using following technical scheme：
A kind of charging base, including main control unit, base battery, Charge Management unit, insertion detection unit, two fill
Electric pin：First charging pins, the second charging pins, two charging pins of described two charging pins and electronic product are one by one
It is corresponding；The electrical energy inputs of the Charge Management unit are connected with base battery, the electric energy output end of the Charge Management unit
Connect the first charging pins of charging base, the second charging pins ground connection of the charging base；The insertion detection unit inspection
Whether the connection of the charging pins of survey charging base and the charging pins of electronic product, and detection signal is exported to main control unit
Insertion test side；The main control unit is according to the detection signal of insertion test side, output charging control signal to charging valve
Unit is managed, whether the Charge Management unit controls the output electric energy of electric energy output end according to the charging control signal received.
Further, the charging base further includes at least one magnet, the magnet polarities of the magnet and electronic product
Conversely；The magnet of the charging base and the magnet of electronic product are pulled together, charging pins and the electricity of the charging base
The charging pins of sub- product correspond to connection.
Further, the magnet of the charging base is laid with three, laying triangular in shape；With three of electronic product
Magnet, which corresponds, to be attracted.
Further, the insertion detection unit includes magnetic field sensor, and the magnetic field sensor detects magnetic flux, and
Output detects signal to the insertion test side of main control unit.
Further, the insertion detection unit includes first switch circuit；Second charging of the charging base is drawn
Foot is grounded by the first current-limiting resistance, and second charging pins are connected first switch with the connecting node of the first current-limiting resistance
The control terminal of circuit, one end of the switch ways of the first switch circuit is by the second current-limiting resistance connect base battery, separately
One end is grounded；The switch ways of the first switch circuit are connected inserting for main control unit with the connecting node of the second current-limiting resistance
Enter test side；The anode of the base battery connection diode, the cathode of the diode connect the first charging pins.
Preferably, it is in series with the 5th current-limiting resistance between two charging pins of electronic product.
Further, the Charge Management unit includes sub-control unit, the 3rd on-off circuit, the 4th on-off circuit, electricity
Voltage conversion circuit, external power interface；The external power interface is connected with external power supply；And the external power interface passes through
The switch ways of 3rd on-off circuit are connected with electric energy output end；The input terminal of the voltage conversion circuit connects with electrical energy inputs
Connect, the output terminal of the voltage conversion circuit is connected by the switch ways of the 4th on-off circuit with electric energy output end；The son
Control unit receives the charging control signal that main control unit is sent, the 3rd on-off circuit of control, the break-make of the 4th on-off circuit.
Further, the second charging pins of the charging base are grounded by the switch ways of second switch circuit,
The break-make of the main control unit control second switch circuit.
Further, the switch ways of the second switch circuit are grounded by the 4th current-limiting resistance；The charging bottom
Seat further includes operational amplifier, the in-phase input end connection second switch circuit of the operational amplifier and the 4th current-limiting resistance
Connecting node, the inverting input connection reference voltage of the operational amplifier, the output terminal connection master of the operational amplifier
Control unit；The signal that the main control unit is conveyed according to the operational amplifier received, generation charging control signal are simultaneously defeated
Go out to the sub-control unit of Power Management Unit, control voltage conversion circuit it is enabled whether.
Based on the design of above-mentioned charging base, the utility model also proposed a kind of electricity designed using the charging base
Sub- product, including charger, rechargeable battery, two charging pins, and the charging base；Described two charging pins with
The charging pins of the charging base correspond, and described two charging pins are connected with charger, and the charger is charging
Battery charges.
Compared with prior art, the advantages of the utility model and good effect is：The charging base and electricity of the utility model
Sub- product, the connection of the charging pins of charging base and the charging pins of electronic product is detected by being inserted into detection unit, and defeated
Go out to detect signal to the insertion test side of main control unit；Main control unit is filled according to the detection signal for being inserted into test side, generation
Electric control signal is simultaneously exported to Charge Management unit, and Charge Management unit control electric energy output end output electric energy, is electronic product
Charging, is solved the problems, such as electronic product charging inconvenience, can easily be charged, prolonged to electronic product using charging base
The usage time of long electronic product, meets user demand, improves user experience.
After the detailed description of the utility model embodiment is read in conjunction with the figure, other features and advantage of the utility model
It will become clearer.
Brief description of the drawings
Fig. 1 is a kind of circuit block diagram of the embodiment for the charging base that the utility model is proposed；
Fig. 2 is a kind of structure diagram of the embodiment for the charging base that the utility model is proposed；
Fig. 3 is the structure diagram of another embodiment for the charging base that the utility model is proposed；
Fig. 4 is a kind of circuit diagram of the embodiment for the charging base that the utility model is proposed；
Fig. 5 is the circuit diagram of another embodiment for the charging base that the utility model is proposed.
Reference numeral：
1st, electronic product；2nd, charging base；3rd, charging pins；4th, magnet；5th, magnetic field sensor.
Embodiment
Specific embodiment of the present utility model is described in more detail below in conjunction with the accompanying drawings.
The charging base 2 of embodiment one, the present embodiment, mainly includes main control unit MCU, base battery, Charge Management
Unit, insertion detection unit, two charging pins 3：First charging pins P1 ', the second charging pins P2 ', two charging pins
P1 ', P2 ' and two charging pins P1, P2 of electronic product 1 are corresponded.The electrical energy inputs and base of Charge Management unit
Battery connects, the first charging pins P1 ' of the electric energy output end connection charging base of Charge Management unit, and the second of charging base
Charging pins P2 ' is grounded；It is inserted into the connection of the charging pins of detection unit detection charging base and the charging pins of electronic product
Whether, and detection signal is exported to the insertion test side AIO1 of main control unit MCU；Main control unit MCU is detected according to insertion
The detection signal of AIO1 is held, charging control signal is generated and exports to Charge Management unit, Charge Management unit is according to receiving
Charging control signal control electric energy output end output electric energy whether, referring to shown in Fig. 1 to Fig. 4.
When insertion detection unit detect charging pins P1 ', the P2 ' of charging base and the charging pins P1 of electronic product,
When P2 connects one to one, insertion detection unit exports low level signal to the insertion test side AIO1 of main control unit MCU, main
Control unit MCU generates charging control signal and sends to Charge Management unit, and Charge Management unit is according to the charging received
The electric energy of control signal control electric energy output end output base battery, the electric energy of base battery pass through Charge Management unit, P1, P2
And P1 ', P2 ' charge for electronic product, solve the problems, such as electronic product charging inconvenience, can be easily right using charging base
Electronic product charges, and extends the usage time of electronic product, meets user demand, improves user experience.
When the insertion test side AIO1 of main control unit MCU is high level, the electric energy output end of Charge Management unit is not
Electric energy is exported, is not charged for electronic product.
Charging pins P1 ', the P2 ' of charging base are generally located on the upper surface of charging base, are typically chosen POGO-
PIN, in order to which the charging pins with electronic product dock.
In the present embodiment, charging base 2 further includes at least one magnet 4, the polarity of magnet 4 and the magnet of electronic product
Opposite polarity, the quantity of magnet 4 are identical with the quantity of the magnet of electronic product.When electronic product is placed on charging base, fill
The magnet 4 and the magnet of electronic product of electric base are pulled together, and the charging of the charging pins and electronic product of charging base is drawn
Foot connects one to one.It is stably connected with by the actuation charging base of magnet with electronic product, so that charging base
Charging pins and electronic product charging pins correspond be stably connected with, ensure charging stability and reliability.
In order to further improve the connective stability of charging base and electronic product, the magnet of the charging base is laid with
Three, laying triangular in shape；When electronic product is placed on charging base, three magnet of charging base and the three of electronic product
A magnet, which corresponds, to be attracted, and the charging pins of charging base and the charging pins of electronic product connect one to one.
In the present embodiment, insertion detection unit includes magnetic field sensor 5, and magnetic field sensor 5 is inserted with main control unit
Enter test side AIO1 connections.Magnetic field sensor detects magnetic flux, and exports detection signal to the insertion test side of main control unit
AIO1。
When the magnet of charging base and the magnet of electronic product are not pulled together, magnetic field sensor is not detected by magnetic flux
The change of amount, output high level illustrate that electronic product is not placed on charging base to the insertion test side AIO1 of main control unit
On.
When the magnet of charging base and the magnet of electronic product are pulled together, magnetic flux is changed, and magnetic field passes
Sensor detects magnetic flux change, and the insertion test side AIO1 of output low level to main control unit, illustrates that electronic product is placed
On charging base, P1 ', P2 ' and P1, P2 connect one to one, and it is electronic product that main control unit, which controls Charge Management unit,
Charging.
The change of magnetic flux is detected by magnetic field sensor, and then detects the charging pins and electronic product of charging base
Charging pins connection whether, it is easy to detect, be easy to implement.
In the present embodiment, magnetic field sensor is preferably Hall sensor, and performance is stable, cost is low.
In the present embodiment, the Charge Management unit is mainly opened including sub-control unit, the 3rd on-off circuit Q3, the 4th
Powered-down road Q4, voltage conversion circuit, external power interface etc..External power interface is connected with external power supply, and the external electricity
Source interface is connected by the switch ways of the 3rd on-off circuit Q3 with electric energy output end；That is, the electric energy that external power supply provides passes through
External power interface, the switch ways of the 3rd on-off circuit Q3 are transmitted to electric energy output end VCHG, and then charged pin is electricity
Sub- product charging.The input terminal of voltage conversion circuit is connected with electrical energy inputs, and the output terminal of voltage conversion circuit passes through the 4th
The switch ways of on-off circuit Q4 are connected with electric energy output end VCHG；That is, the electric energy that base battery provides passes through electrical energy inputs
Voltage conversion circuit is transmitted to, after voltage conversion, the switch ways through the 4th on-off circuit Q4 are transmitted to electric energy output end
VCHG, then charged pin is electronic product charging.Sub-control unit receives the charging control signal that main control unit is sent,
Control the 3rd on-off circuit Q3, the break-make of the 4th on-off circuit Q4.The electric energy that external power supply provides can be connect by external power supply
Mouth, Charge Management unit are that base battery charges.In the present embodiment, the 3rd on-off circuit Q3, the 4th on-off circuit Q4 are
Low conduction voltage drop switching tube, such as PMOS tube.
The external power interface of the present embodiment is Micro-USB interfaces, can be directly connected to DC power supply, is electronic product
Charging.AC adapter can also be set in Charge Management unit, and the alternating current that external AC power supply provides is through external power supply
Interface is transmitted to AC adapter, after AC adapter docks received alternating current progress rectification and voltage conversion, is passed through Q3
Electric energy output end VCHG is transported to, is charged for electronic product.
Main control unit is connected with external power interface, and whether detection external power interface is inserted with external power supply.
When P1 ', P2 ' and P1, P2 connect one to one（I.e. when the insertion test side AIO1 of main control unit is low level
When）, when main control unit detects external power interface inserted with external power supply, the output terminal PIO2 outputs of main control unit
High level, output terminal PIO3 export low level to sub-control unit, and sub-control unit control voltage conversion circuit does not enable, and controls
Make the 4th on-off circuit Q4 disconnect, the 3rd on-off circuit Q3 conductings, the electric energy that external power supply provides passes through external power interface, the
The switch ways of three on-off circuit Q3 are transmitted to electric energy output end VCHG, and then charged pin charges for electronic product.
When P1 ', P2 ' and P1, P2 connect one to one, when main control unit detects that external power interface is not inserted into
During external power supply, the output terminal PIO2 outputs low level of main control unit, output terminal PIO3 output high level to sub-control unit,
Sub-control unit control voltage conversion circuit enables, and controls the 4th on-off circuit Q4 conductings, the 3rd on-off circuit Q3 to disconnect, bottom
The electric energy that seat battery provides is transmitted to electric energy output end by the switch ways of voltage conversion circuit, the 4th on-off circuit Q4
VCHG, then charged pin is electronic product charging.
In the present embodiment, the cell voltage of base battery is 3.8V, and voltage conversion circuit is booster circuit, by 3.8V liters
Press as 5V, charge for electronic product.
In the present embodiment, for the ease of controlling the break-make of the charge circuit of electronic product, the second of charging base charges
Pin P2 ' is grounded by the switch ways of second switch circuit Q2, the break-make of main control unit control second switch circuit Q2.When
When P1 ', P2 ' connect one to one with P1, P2（I.e. when the insertion test side AIO1 of main control unit is low level）, main control
Unit control second switch circuit Q2 conductings so that the charge circuit conducting of electronic product；Work as P1 ', P2 ' with P1, P2 not connect
When connecing（I.e. when the insertion test side AIO1 of main control unit is high level）, main control unit control second switch circuit Q2 passes
It is disconnected so that the charge circuit cut-out of electronic product.In the present embodiment, second switch circuit is high conduction voltage drop switching tube, such as
NMOS tube.
In the present embodiment, the switch ways of second switch circuit Q2 are grounded by the 4th current-limiting resistance R4；Charging base
Further include operational amplifier OP1, the in-phase input end connection second switch circuit Q2 of operational amplifier OP1 and the 4th current-limiting resistance
The connecting node of R4, the inverting input connection reference voltage VREF of operational amplifier OP1（Such as 1V）, the output of operational amplifier
End connection main control unit；The signal that main control unit is conveyed according to the operational amplifier OP1 received, produces charge control letter
Number and export to Power Management Unit sub-control unit, control voltage conversion circuit it is enabled whether.
When base battery charges for electronic product, the connection section of second switch circuit Q2 and the 4th current-limiting resistance R4
It is high level at point, more than reference voltage VREF, operational amplifier OP1 exports high level to the input terminal of main control unit
AIO2, the output terminal PIO3 of main control unit export high level to sub-control unit, sub-control unit control voltage conversion circuit
Keep enabled state.
When electronic product is fully charged, the electric current on charge circuit is 0 at this time, second switch circuit Q2 and the 4th current limliting electricity
It is low level to hinder at the connecting node of R4, and less than reference voltage VREF, operational amplifier OP1 exports low level to main control unit
Input terminal AIO2, the output terminal PIO3 of main control unit exports low level to sub-control unit, sub-control unit control voltage
Conversion circuit does not enable, and controls second switch circuit Q2 to disconnect.
Since voltage conversion circuit is in enabled state, the quiescent current of 4mA or so can be produced, the current value is larger, disappears
The electric energy of base battery is consumed, influences the stand-by time of charging base, therefore, when being charged using base battery for electronic product,
When electronic product is fully charged, control voltage conversion circuit does not enable, to reduce power consumption, extend the usage time of rechargeable battery with
And the stand-by time of charging base.
The course of work of charging base is as follows, and under default conditions, Q2, Q3, Q4 are in off state.
（1）When insertion detection unit detects magnetic flux change, output low level to the insertion test side of main control unit
AIO1, illustrates that electronic product is placed on charging base, and P1 ', P2 ' and P1, P2 connect one to one；The output of main control unit
PIO1 is held to export high level to the control terminal of second switch circuit Q2, second switch circuit Q2 conductings.
（2）Main control unit detects whether access external power supply, if access has an external power supply at this time, main control unit it is defeated
Outlet PIO2 outputs high level, output terminal PIO3 export low level to sub-control unit, sub-control unit control voltage conversion electricity
Road does not enable, and controls the 4th on-off circuit Q4 to disconnect, the 3rd on-off circuit Q3 conductings, and the electric energy that external power supply provides passes through outer
Connect power interface, the switch ways of the 3rd on-off circuit Q3 are transmitted to electric energy output end VCHG, be then transmit to charging pins, be
Electronic product charges.Charge path：External power supply → external power interface → Q3 → electric energy output end VCHG → P1 ' → P1 → electricity
Sub- product charger → P2 → P2 ' → Q2 → R4 → GND.
If not accessing external power supply at this time, the output terminal PIO2 outputs low level of main control unit, output terminal PIO3 outputs
To sub-control unit, sub-control unit control voltage conversion circuit enables high level, and controls the 4th on-off circuit Q4 conductings, the
Three on-off circuit Q3 are disconnected, and the electric energy that base battery provides is boosted by voltage conversion circuit, then through the 4th switch electricity
The switch ways of road Q4 are transmitted to electric energy output end VCHG, are then transmit to charging pins, charge for electronic product.Charging circuit
Footpath：Base battery → voltage conversion circuit → Q4 → electric energy output end VCHG → P1 ' → P1 → electronic product charger → P2 →
P2’ →Q2→R4→GND。
In both charging processes, voltage, the electricity of the in-phase input end of operational amplifier OP1 are formed above resistance R4
Pressure is more than the voltage of inverting input, the AIO2 of operational amplifier OP1 output high level to main control unit.
（3）When electronic product is fully charged, the electric current on charge circuit is 0, the in-phase input end of operational amplifier OP1
Voltage is less than the voltage of inverting input, and operational amplifier OP1 exports low level to the AIO2 of main control unit；Main control unit
Output terminal PIO3 export low level to sub-control unit, sub-control unit control voltage conversion circuit does not enable, to reduce work(
Consumption, extends the stand-by time of charging base.And second switch circuit Q2 is controlled to disconnect.
Therefore, the charging base of the present embodiment, charging when not only having met external power supply access to electronic product, but also it is full
When foot is without external power supply, charging of the base battery to electronic product, easy to charge to electronic product, extends electronics production
The usage time of product, meets user demand, improves user experience.
Based on the design of above-mentioned charging base, the present embodiment also proposed a kind of electronic product, mainly including charger, fill
Battery, two charging pins P1 and P2, and the charging base.Two charging pins P1, P2 and charging base fill
Electric pin P1 ', P2 ' are corresponded, and two charging pins P1, P2 and charger connect, and charger charges for rechargeable battery.
By designing the charging base in electronic product, easy to the charging of electronic product, electronic product is improved
Usage time, meet the use demand of user, improve the usage experience of user.
The electronic product can be wrist-watch, mobile phone, PAD, intelligent wearable device etc..
Embodiment two, the charging base of the present embodiment and the design for being to be inserted into detection unit in place of the difference of embodiment one
Difference, the insertion detection unit of the present embodiment are built using component.The other structures of the charging base of the present embodiment are set
Meter, identical with embodiment one, details are not described herein again.
The insertion detection unit of the present embodiment, mainly includes first switch circuit Q1；Second charging pins of charging base
P2 ' is grounded by the first current-limiting resistance R1, and the second charging pins P2 ' is connected first with the connecting node of the first current-limiting resistance R1
The control terminal of on-off circuit Q1, one end of the switch ways of first switch circuit Q1 pass through the second current-limiting resistance R2 connect bases electricity
Pond, other end ground connection；The switch ways of first switch circuit Q1 are connected main control list with the connecting node of the second current-limiting resistance R2
The insertion test side AIO1 of first MCU；Base battery passes through the anode of current-limiting resistance R3 connection diodes D1, the cathode of diode D1
The first charging pins P1 ' of charging base is connected, it is shown in Figure 5.In the present embodiment, first switch circuit Q1 turns on to be high
Pressure drop switch pipe, such as NMOS tube.
As charging pins P1 ', the P2 ' of charging base and charging pins P1, P2 of electronic product not connected, first switch
It is low level that the control terminal of circuit Q1 is drawn by resistance R1, and first switch circuit Q1 is turned off, the insertion test side of main control unit MCU
AIO1 is high level, illustrates that electronic product is not placed on charging base.
When charging pins P1 ', the P2 ' of charging base and charging pins P1, P2 of electronic product connect one to one, if
Access has an external power supply at this time, control the 3rd on-off circuit Q3 conductings, the electric current that external power supply provides by external power interface,
Q3, electric energy output end VCHG, P1 ', P1, charger charger, P2, P2 of electronic product ', the control of first switch circuit Q1
End, the first current-limiting resistance R1 flow into ground, and the control terminal of first switch circuit Q1 is high level, and the switch of first switch circuit Q1 leads to
Road turns on；The electric current of base battery flows into ground by the switch ways of the second current-limiting resistance R2, first switch circuit Q1, and first opens
The insertion that the connecting node of the switch ways of powered-down road Q1 and the second current-limiting resistance R2 export low level to main control unit MCU is examined
End AIO1 is surveyed, illustrates that electronic product is placed on charging base, P1 ', P2 ' and P1, P2 connect one to one, Q3 conductings, external
Power supply charges for electronic product.
If not accessed external power supply at this time, base battery provide electric current pass through resistance R3, diode D1, P1 ', P1,
Charger charger, P2, P2 of electronic product ', the control terminal of first switch circuit Q1, the first current-limiting resistance R1 flow into ground, the
One on-off circuit Q1 is turned on, and the insertion test side AIO1 of main control unit MCU is low level, illustrates that electronic product is placed on charging
On base, P1 ', P2 ' and P1, P2 connect one to one, and control voltage conversion circuit enables, Q4 conductings, and base battery is electronics
Product charges.
In the present embodiment, in order to ensure the conducting of first switch circuit Q1, two charging pins P1 in electronic product,
The 5th current-limiting resistance R5 is in series between P2, i.e. electronic product charger charger is in parallel with R5, to improve the first current-limiting resistance
The dividing ratios of R1, ensure the voltage of the control terminal of first switch circuit Q1, it is ensured that first switch circuit Q1 is turned on.Charging current
Through P1 ', P1, charger charger and R5, P2, P2 ', the control terminal of first switch circuit Q1, the first current-limiting resistance R1 flow into
Ground.R5 of the selection with larger resistance value, such as 1M Ω, avoids loss of the electric current on R5.
The insertion detection unit built by component, cost is low, detection is accurate.
The course of work of charging base is as follows, and under default conditions, Q1, Q2, Q3, Q4 are in off state.
（1）Main control unit detects whether access external power supply, if access at this time has external power supply, control Q3 conductings.
When the insertion test side AIO1 of main control unit is low level, illustrate that electronic product is placed on charging base, P1 ', P2 ' with
P1, P2 connect one to one；The output terminal PIO1 of main control unit exports high level to the control terminal of second switch circuit Q2, the
Two on-off circuit Q2 are turned on.
（2）Main control unit detects whether access external power supply, if access has an external power supply at this time, main control unit it is defeated
Outlet PIO2 outputs high level, output terminal PIO3 export low level to sub-control unit, sub-control unit control voltage conversion electricity
Road does not enable, and controls the 4th on-off circuit Q4 to disconnect, the 3rd on-off circuit Q3 conductings, and the electric energy that external power supply provides passes through outer
Connect power interface, the switch ways of the 3rd on-off circuit Q3 are transmitted to electric energy output end VCHG, be then transmit to charging pins, be
Electronic product charges.Charge path：External power supply → external power interface → Q3 → electric energy output end VCHG → P1 ' → P1 → electricity
Sub- product charger and resistance R5 → P2 → P2 ' → Q2 → R4 → GND.
If not accessing external power supply at this time, the output terminal PIO2 outputs low level of main control unit, output terminal PIO3 outputs
To sub-control unit, sub-control unit control voltage conversion circuit enables high level, and controls the 4th on-off circuit Q4 conductings, the
Three on-off circuit Q3 are disconnected, and the electric energy that base battery provides is boosted by voltage conversion circuit, then through the 4th switch electricity
The switch ways of road Q4 are transmitted to electric energy output end VCHG, are then transmit to charging pins, charge for electronic product.Charging circuit
Footpath：Base battery → voltage conversion circuit → Q4 → electric energy output end VCHG → P1 ' → P1 → electronic product charger and resistance
R5→P2→P2’ →Q2→R4→GND。
In both charging processes, voltage, the electricity of the in-phase input end of operational amplifier OP1 are formed above resistance R4
Pressure is more than the voltage of inverting input, the AIO2 of operational amplifier OP1 output high level to main control unit.
（3）When electronic product is fully charged, the electric current on charge circuit is 0, the in-phase input end of operational amplifier OP1
Voltage is less than the voltage of inverting input, and operational amplifier OP1 exports low level to the AIO2 of main control unit；Main control unit
Output terminal PIO3 export low level to sub-control unit, sub-control unit control voltage conversion circuit does not enable, to reduce work(
Consumption, extends the stand-by time of charging base.And second switch circuit Q2 is controlled to disconnect.
Therefore, the charging base of the present embodiment, charging when not only having met external power supply access to electronic product, but also it is full
When foot is without external power supply, charging of the base battery to electronic product, easy to charge to electronic product, extends electronics production
The usage time of product, meets user demand, improves user experience.
Based on the design of above-mentioned charging base, the present embodiment also proposed a kind of electronic product, mainly including charger, fill
Battery, two charging pins P1 and P2, and the charging base.Two charging pins P1, P2 and charging base fill
Electric pin P1 ', P2 ' are corresponded, and two charging pins P1, P2 and charger connect, and charger charges for rechargeable battery.
By designing the charging base in electronic product, easy to the charging of electronic product, electronic product is improved
Usage time, meet the use demand of user, improve the usage experience of user.
The electronic product can be wrist-watch, mobile phone, PAD, intelligent wearable device etc..
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the utility model,
It should also belong to the protection scope of the utility model.
Claims (10)
- A kind of 1. charging base, it is characterised in that：It is single including main control unit, base battery, Charge Management unit, insertion detection Member, two charging pins：First charging pins, the second charging pins, two of described two charging pins and electronic product fill Electric pin corresponds；The electrical energy inputs of the Charge Management unit are connected with base battery, and the electric energy output end of the Charge Management unit connects Connect the first charging pins of charging base, the second charging pins ground connection of the charging base；Whether the connection of the charging pins of the insertion detection unit detection charging base and the charging pins of electronic product, and it is defeated Go out to detect signal to the insertion test side of main control unit；The main control unit is according to the detection signal of insertion test side, output charging control signal to Charge Management unit, institute State Charge Management unit according to receive charging control signal control electric energy output end output electric energy whether.
- 2. charging base according to claim 1, it is characterised in that：The charging base further includes at least one magnet, The magnet is opposite with the magnet polarities of electronic product；The magnet of the charging base and the magnet of electronic product are pull-in on one Rise, the connection corresponding with the charging pins of electronic product of the charging pins of the charging base.
- 3. charging base according to claim 2, it is characterised in that：The magnet of the charging base is laid with three, is in Triangle is laid；Correspond and be attracted with three magnet of electronic product.
- 4. charging base according to claim 2, it is characterised in that：The insertion detection unit includes magnetic field sensor, The magnetic field sensor detects magnetic flux, and exports detection signal to the insertion test side of main control unit.
- 5. charging base according to claim 1, it is characterised in that：The insertion detection unit includes first switch electricity Road；Second charging pins of the charging base are grounded by the first current-limiting resistance, and second charging pins and the first limit The control terminal of the connecting node connection first switch circuit of leakage resistance, one end of the switch ways of the first switch circuit passes through Second current-limiting resistance connect base battery, other end ground connection；The switch ways and the second current-limiting resistance of the first switch circuit Connecting node connection main control unit insertion test side；The anode of the base battery connection diode, the cathode of the diode connect the first charging pins.
- 6. charging base according to claim 5, it is characterised in that：Connect between two charging pins of electronic product There is the 5th current-limiting resistance.
- 7. charging base according to any one of claim 1 to 6, it is characterised in that：The Charge Management unit includes Sub-control unit, the 3rd on-off circuit, the 4th on-off circuit, voltage conversion circuit, external power interface；The external power interface is connected with external power supply；And the external power interface is led to by the switch of the 3rd on-off circuit Road is connected with electric energy output end；The input terminal of the voltage conversion circuit is connected with electrical energy inputs, and the output terminal of the voltage conversion circuit passes through the 4th The switch ways of on-off circuit are connected with electric energy output end；The sub-control unit receives the charging control signal that main control unit is sent, the 3rd on-off circuit of control, the 4th switch The break-make of circuit.
- 8. charging base according to claim 7, it is characterised in that：Second charging pins of the charging base pass through The switch ways ground connection of two on-off circuits, the break-make of the main control unit control second switch circuit.
- 9. charging base according to claim 8, it is characterised in that：The switch ways of the second switch circuit pass through Four current-limiting resistances are grounded；The charging base further includes operational amplifier, the in-phase input end connection second switch circuit of the operational amplifier with The connecting node of 4th current-limiting resistance, the inverting input connection reference voltage of the operational amplifier, the operational amplifier Output terminal connection main control unit；The signal that the main control unit is conveyed according to the operational amplifier received, produces charging control signal and exports to electricity The sub-control unit of source control unit, control voltage conversion circuit it is enabled whether.
- A kind of 10. electronic product, it is characterised in that：Including charger, rechargeable battery, two charging pins, and as right will Seek the charging base any one of 1 to 9；The charging pins one of described two charging pins and the charging base are a pair of Should, described two charging pins are connected with charger, and the charger charges for rechargeable battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721328169.5U CN207234474U (en) | 2017-10-16 | 2017-10-16 | A kind of charging base and electronic product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721328169.5U CN207234474U (en) | 2017-10-16 | 2017-10-16 | A kind of charging base and electronic product |
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| Publication Number | Publication Date |
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| CN207234474U true CN207234474U (en) | 2018-04-13 |
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| CN201721328169.5U Active CN207234474U (en) | 2017-10-16 | 2017-10-16 | A kind of charging base and electronic product |
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| CN (1) | CN207234474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546814A (en) * | 2017-10-16 | 2018-01-05 | 歌尔科技有限公司 | A kind of charging base and electronic product |
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2017
- 2017-10-16 CN CN201721328169.5U patent/CN207234474U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546814A (en) * | 2017-10-16 | 2018-01-05 | 歌尔科技有限公司 | A kind of charging base and electronic product |
| CN107546814B (en) * | 2017-10-16 | 2024-04-02 | 歌尔科技有限公司 | Charging base and electronic product |
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