CN209462049U - Charging box control circuit and charging box - Google Patents
Charging box control circuit and charging box Download PDFInfo
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- CN209462049U CN209462049U CN201920184272.XU CN201920184272U CN209462049U CN 209462049 U CN209462049 U CN 209462049U CN 201920184272 U CN201920184272 U CN 201920184272U CN 209462049 U CN209462049 U CN 209462049U
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- electrode terminal
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Abstract
A kind of charging box control circuit, it is set in charging box, by the way that control module is added, input voltage is faded to after predeterminated voltage to the enable signal according to control module and stablizes output to electrode terminal, with the voltage changing module to charging bluetooth earphone and to convey the first level signal to control module according to closed state, so that switch module of the control module in the working condition of the enabled lower control voltage changing module of the first level signal, input voltage that is easy to operate and expanding charging box input range and can ensure that stability to bluetooth headset supply voltage, solve in traditional technical solution that there are cumbersome and when battery or external equipment over-voltage or overcurrent etc., easily cause the problem of damage of charging box and bluetooth headset.
Description
Technical field
The utility model belongs to control technology field more particularly to a kind of charging box control circuit and charging box.
Background technique
Currently, bluetooth headset can generally be furnished with charging box, and charging box is as blue in order to meet the charging needs of bluetooth headset
The chargeable storage box of tooth earphone and exist, still, traditional charging box be usually be arranged switch button, user is according to charging
It needs and switching on and shutting down, but such mode is comparatively laborious and is easy that there are users to be placed on bluetooth headset in charging box still
Forget the case where being switched on and causing bluetooth headset that can not obtain power supply supply in time；And traditional charging box is usually setting volume
Surely the battery that exports or charging head apparatus directly the power supply of power supply or external equipment to be transported in bluetooth headset, when
Battery or external equipment over-voltage or overcurrent etc., easily cause the damage of charging box and bluetooth headset.
Therefore, there are cumbersome and when battery or external equipment over-voltage or overcurrent in traditional technical solution
Deng the problem of easily causing the damage of charging box and bluetooth headset.
Utility model content
In view of this, the utility model embodiment provides a kind of charging box control circuit and charging box, it is intended to solve
Present in traditional technical solution it is cumbersome and work as battery or external equipment over-voltage or overcurrent etc., easily cause charging
The problem of damage of box and bluetooth headset.
The first aspect of the utility model embodiment provides a kind of charging box control circuit, is set to the charging box
In, the charging box includes shell, the battery and electrode terminal that are set in the housing, and the shell is offered for accommodating bluetooth
The cavity of earphone, the electrode terminal setting with the bluetooth headset in the cavity for being electrically connected, the charging box control
Circuit processed includes:
Control module；
Voltage changing module, the power end of the voltage changing module are connect with the battery, the enable end of the voltage changing module and institute
Control module connection is stated, the output end of the voltage changing module is connect with the anode of the bluetooth headset, and the voltage changing module is matched
It is set to that input voltage is faded to after predeterminated voltage to stablize according to the enable signal of the control module and exports to the electrode terminal,
To give the charging bluetooth earphone；
Switch module, the switch module are connect with the battery and the control module, and the switch module is configured
To convey the first level signal to the control module according to closed state, the control module makes in first level signal
The working condition of the voltage changing module can be controlled down.
In one embodiment, the control module includes microprocessor controller.
In one embodiment, the switch module includes mechanical switch, first resistor, second resistance and third electricity
Resistance, the first end of the first resistor are connect with the power supply, and the first of the second end of the first resistor, the second resistance
The first end of end and the 3rd resistor is connected to the first input end of the control module, the second end of the second resistance altogether
Ground connection, the second end of the 3rd resistor are connect with the first end of the mechanical switch, the second end ground connection of the mechanical switch.
In one embodiment, the voltage changing module includes DC-DC boost chip, the input of the DC-DC boost chip
End is connect with the power supply, and the enable end of the DC-DC boost chip is connect with the first output end of the control module, described
The output end of DC-DC boost chip is connect with the electrode terminal.
In one embodiment, the charging box control circuit further includes charge management module, the charge management module
External charge equipment, the charge management module is connect with the battery, the control module and the voltage changing module, described
Charging equipment and the battery are powered by the charge management module to the voltage changing module, and the charge management module is matched
Be set to the power supply signal inputted to the charging equipment and the battery status carry out power management and for the voltage changing module,
The control module and the electrode terminal provide electric energy.
In one embodiment, the charge management module includes BQ2407x series charging chip.
In one embodiment, the charging box control circuit further includes Voltage stabilizing module, and the battery passes through the pressure stabilizing
Module charges to the control module.
In one embodiment, the charging box control circuit further includes sample detecting module, the sample detecting module
First end connect with the control module and the electrode terminal, the second end of sample detecting module ground connection is described to adopt
Sample detection module is configured as acquiring the electric current of the electrode terminal and is conveyed to the control module, when the electric current exceeds valve
When value, the control module stops conveying enable signal to the voltage changing module.
The second aspect of the utility model embodiment provides a kind of charging box, including shell, above-mentioned charging box control
Circuit, the battery being disposed in the housing, electrode terminal and interface module, the charging box control circuit pass through the interface
The external charging equipment of module, the shell offer the cavity for accommodating bluetooth headset, and the electrode terminal is set to
In the cavity.
In one embodiment, the interface module includes TYPE-C interface.
Above-mentioned charging box control circuit, is set in charging box, by the way that control module is added, to according to control module
Enable signal input voltage faded to after predeterminated voltage stablize output to electrode terminal, to give the transformation mould of charging bluetooth earphone
Block and to according to closed state convey the first level signal to control module so that control module makes in the first level signal
The switch module of the working condition of voltage changing module can be controlled down, and input voltage that is easy to operate and expanding charging box inputs
Range simultaneously ensure that stability to bluetooth headset supply voltage, solve in traditional technical solution there are cumbersome and
When battery or external equipment over-voltage or overcurrent etc., the problem of easily causing the damage of charging box and bluetooth headset.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the circuit diagram for the charging box control circuit that an embodiment of the present invention provides；
Fig. 2 is the structural schematic diagram for the charging box that an embodiment of the present invention provides；
Fig. 3 is the exemplary circuit schematic diagram of control module in charging box control circuit shown in FIG. 1；
Fig. 4 is the exemplary circuit schematic diagram of switch module in charging box control circuit shown in FIG. 1；
Fig. 5 is the exemplary circuit schematic diagram of voltage changing module in charging box control circuit shown in FIG. 1；
Fig. 6 is the circuit diagram for the charging box control circuit that an embodiment of the present invention provides.
The exemplary circuit of charge management module is former in the charging box control circuit that Fig. 7 provides for an embodiment of the present invention
Reason figure；
The exemplary circuit principle of Voltage stabilizing module in the charging box control circuit that Fig. 8 provides for an embodiment of the present invention
Figure；
The exemplary circuit of sample detecting module is former in the charging box control circuit that Fig. 9 provides for an embodiment of the present invention
Reason figure；
The exemplary circuit schematic diagram of interface module in the charging box circuit that Figure 10 provides for an embodiment of the present invention.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Referring to Fig. 1, the circuit diagram for the charging box control circuit that the utility model first embodiment provides, in order to just
In explanation, only the parts related to this embodiment are shown, and details are as follows:
Charging box control circuit in the present embodiment, is set in charging box, referring to Fig. 2, charging box includes shell
200, the battery 110 and electrode terminal 210 in shell 200, shell 200 offer the sky for accommodating bluetooth headset
Chamber, electrode terminal 210 are set in cavity for being electrically connected with bluetooth headset, it should be appreciated that electrode terminal 210 includes positive electricity end
Son and negative electrode terminal.
It should be understood that when charging box is to accommodate the first bluetooth headset and the second bluetooth headset, electrode terminal 210 can be
First positive electrode terminal, the first negative electrode terminal, the second positive electrode terminal and the second negative electrode terminal, wherein the first positive electricity
Extreme son and the second positive electrode terminal are connected in the input terminal of electrode terminal 210 altogether, and the first negative electrode terminal and the second negative electricity are extreme
Sub respectively ground connection；The cavity of receiving bluetooth headset can be divided into the first cavity and the second cavity, the first cavity and the second cavity phase
It is mutually independently arranged or is connected to setting, the first cavity includes the first positive electrode terminal and the first negative electrode terminal, the second cavity packet
Include the second positive electrode terminal and the second negative electrode terminal, the first cavity and the second cavity respectively to accommodate the first bluetooth headset and
Second bluetooth headset.
Charging box control circuit includes: control module 300, voltage changing module 400 and switch module 500, voltage changing module 400
It is configured as fading to after predeterminated voltage input voltage according to the enable signal of control module 300 and stablizes output to electrode terminal
210, to give charging bluetooth earphone, voltage changing module 400 can use DC-DC transformation chip；Switch module 500 is configured as basis
Closed state conveys the first level signal to control module 300, and control module 300 is in the enabled lower control transformation of the first level signal
The working condition of module 400, switch module 500 can be answered by mechanical switch, switching tube, magnetic induction switch chip or distance perception
Chip etc. is constituted.
It should be understood that closed state is referred to turning off or is closed.
It should be understood that the working condition of voltage changing module 400 includes: that voltage changing module 400 works normally, i.e., input voltage is faded to
Stablize output after predeterminated voltage to electrode terminal 210；And 400 module from service of voltage changing module, such as stop receiving input
Voltage stops to motor terminal output voltage.
The power end of voltage changing module 400 connects to power supply, and the enable end of voltage changing module 400 is connect with control module 300, becomes
The output end of die block 400 and the anode of bluetooth headset connect, and switch module 500 is connect with battery 110 and control module 300.
Charging box control circuit in the present embodiment is set in charging box, by the way that control module 300 is added, to basis
The enable signal of control module 300, which fades to after predeterminated voltage input voltage, stablizes output to electrode terminal 210, to give bluetooth ear
Machine charging voltage changing module 400 and to according to closed state convey the first level signal arrive control module 300 so that control
Module 300 the working condition of the enabled lower control voltage changing module 400 of the first level signal switch module 500, it is easy to operate and
Expand the input voltage of charging box input range and can ensure that stability to bluetooth headset supply voltage, solve biography
In the technical solution of system there are it is cumbersome and work as battery 110 or external equipment over-voltage or overcurrent etc., easily cause charging
The problem of damage of box and bluetooth headset.
Referring to Fig. 3, in one embodiment, control module 300 includes microprocessor controller U1, microprocessor controller U1
It can be single-chip microcontroller, such as STM8L151Gx.
Referring to Fig. 4, in one embodiment, switch module 500 includes mechanical switch S1, first resistor R1, the second electricity
R2 and 3rd resistor R3 is hindered, the first end of first resistor R1 connects to power supply, the second end of first resistor R1, second resistance R2
First end and the first end of 3rd resistor R3 be connected to the first input end of control module 300 altogether, the second of second resistance R2
End ground connection, the second end of 3rd resistor R3 are connect with the first end of mechanical switch S1, the second end ground connection of mechanical switch S1.
It should be understood that the both ends of mechanical switch S1 can be respectively arranged at the box body of charging box and lid goes out, when charging box cover
When son is opened, mechanical switch S1 is disconnected, and switch module 500 conveys low level signal into control module 300, control module 300
Stop sending enable signal to the enable end of voltage changing module 400 according to the low level signal received or sends low level to transformation
The enable end of module 400 is stopped working with controlling voltage changing module 400；When charging box lid closes, mechanical switch S1 is closed
It closes, switch module 500 conveys high level signal into control module 300, and control module 300 is sent out according to the high level signal received
The enable signal normal work for sending enable signal to be received to the enable end of voltage changing module 400, voltage changing module 400 according to enable end.
It should be understood that in one embodiment, in order to enable switch module 500 according to the closed state of mechanical switch S1
Conveying high level signal or low level signal, the resistance value of second resistance R2 should be greater than the resistance value of 3rd resistor R3.
Referring to Fig. 5, in one embodiment, voltage changing module 400 includes DC-DC boost chip U2, DC-DC boost chip
The input terminal of U2 connects to power supply, and the enable end of DC-DC boost chip U2 is connect with the first output end of control module 300, DC-
The output end of DC boost chip is connect with electrode terminal 210.
Referring to Fig. 6, in one embodiment, charging box control circuit further includes charge management module 600, Charge Management
600 external charge equipment 120 of module, charge management module 600 and battery 110, control module 300 and voltage changing module 400 connect
It connects, charging equipment 120 is connect by charge management module 600 with voltage changing module 400, and charge management module 600 is configured as pair
The power supply signal and 110 state of battery that charging equipment 120 is inputted carry out power management and are voltage changing module 400, control module
300 and electrode terminal 210 provide electric energy.
Referring to Fig. 7, in one embodiment, charge management module 600 includes BQ2407x series charging chip.
Fig. 6 and Fig. 8 are please referred to, in one embodiment, charging box control circuit further includes Voltage stabilizing module 700, battery 110
It is powered by Voltage stabilizing module 700 to control module 300, Voltage stabilizing module 700 can be made of voltage stabilizing chip.
Referring to Fig. 6, in one embodiment, charging box control circuit further includes sample detecting module 800, sample detecting
The first end of module 800 is connect with control module 300 and electrode terminal 210, and the second end ground connection of sample detecting module 800 is adopted
Sample detection module 800 is configured as the electric current of acquisition electrode terminal 210 and is conveyed to control module 300, when electric current exceeds threshold values
When, control module 300 stops conveying enable signal to voltage changing module 400.
It should be understood that threshold values is the current value that voltage changing module 400 exports, and when electrical quantity of bluetooth headset underfill, electrode terminal
Electric current be less than threshold values；When electrical quantity of bluetooth headset is full of, the electric current between electrode terminal is equal to threshold values.
Referring to Fig. 9, sample detecting module 800 can be made of sampling resistor R14.
The second embodiment of the present invention provides a kind of charging box, including shell 200, above-mentioned charging box control circuit,
Battery 110, electrode terminal 210 and interface module 900, charging box control circuit in shell 200 pass through interface module
900 external charge equipment 120, shell 200 offer the cavity for accommodating bluetooth headset, and electrode terminal 210 is set to described
In cavity.
Referring to Fig. 10, in one embodiment, interface module 900 includes TYPE-C interface.In other embodiments, it connects
Mouth mold block 900 can also be wireless charging circuit.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of charging box control circuit, is set in the charging box, which is characterized in that the charging box includes shell, sets
In the intracorporal battery of shell and electrode terminal, the shell offers the cavity for accommodating bluetooth headset, the electrode terminal
In the cavity for being electrically connected with the bluetooth headset, the charging box control circuit includes: for setting
Control module；
Voltage changing module, the power end of the voltage changing module are connect with the battery, the enable end of the voltage changing module and the control
The connection of molding block, the output end of the voltage changing module are connect with the anode of the bluetooth headset, and the voltage changing module is configured as
Input voltage is faded to after predeterminated voltage according to the enable signal of the control module and stablizes output to the electrode terminal, to give
The charging bluetooth earphone；
Switch module, the switch module are connect with the battery and the control module, and the switch module is configured as root
The first level signal is conveyed to the control module according to closed state, and the control module is in the case where first level signal is enabled
Control the working condition of the voltage changing module.
2. charging box control circuit as described in claim 1, which is characterized in that the control module includes micro process control
Device.
3. charging box control circuit as described in claim 1, which is characterized in that the switch module includes mechanical switch,
One resistance, second resistance and 3rd resistor, the first end of the first resistor are connect with the power supply, the first resistor
It is first defeated to be connected to the control module altogether for the first end of second end, the first end of the second resistance and the 3rd resistor
Entering end, the second end ground connection of the second resistance, the second end of the 3rd resistor is connect with the first end of the mechanical switch,
The second end of the mechanical switch is grounded.
4. charging box control circuit as described in claim 1, which is characterized in that the voltage changing module includes DC-DC boosting core
The input terminal of piece, the DC-DC boost chip is connect with the power supply, the enable end of the DC-DC boost chip and the control
First output end of molding block connects, and the output end of the DC-DC boost chip is connect with the electrode terminal.
5. the charging box control circuit as described in claim 1-4 any one, which is characterized in that further include Charge Management mould
Block, the charge management module external charge equipment, the charge management module and the battery, the control module and institute
It states voltage changing module connection, the charging equipment and the battery and is powered by the charge management module to the voltage changing module,
The charge management module is configured as the power supply signal inputted to the charging equipment and the state of the battery carries out electricity
Source control simultaneously provides electric energy for the voltage changing module, the control module and the electrode terminal.
6. charging box control circuit as claimed in claim 5, which is characterized in that the charge management module includes BQ2407x
Serial charging chip.
7. charging box control circuit as described in claim 1, which is characterized in that further include Voltage stabilizing module, the battery passes through
The Voltage stabilizing module charges to the control module.
8. charging box control circuit as described in claim 1, which is characterized in that further include sample detecting module, the sampling
The first end of detection module is connect with the control module and the electrode terminal, the second termination of the sample detecting module
Ground, the sample detecting module is configured as acquiring the electric current of the electrode terminal and is conveyed to the control module, when described
When electric current exceeds threshold values, the control module stops conveying enable signal to the voltage changing module.
9. a kind of charging box, which is characterized in that the charging box including shell, as described in claim 1-8 any one controls electricity
Road, the battery being disposed in the housing, electrode terminal and interface module, the charging box control circuit pass through the interface mould
Block external charge equipment, the shell offer the cavity for accommodating bluetooth headset, and the electrode terminal is set to the sky
It is intracavitary.
10. charging box as claimed in claim 9, which is characterized in that the interface module includes TYPE-C interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920184272.XU CN209462049U (en) | 2019-02-01 | 2019-02-01 | Charging box control circuit and charging box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920184272.XU CN209462049U (en) | 2019-02-01 | 2019-02-01 | Charging box control circuit and charging box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209462049U true CN209462049U (en) | 2019-10-01 |
Family
ID=68046603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920184272.XU Active CN209462049U (en) | 2019-02-01 | 2019-02-01 | Charging box control circuit and charging box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209462049U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113038319A (en) * | 2021-02-26 | 2021-06-25 | 深圳市蓝蜂时代实业有限公司 | Circuit for realizing charging and communication functions of TWS charging box and earphone |
| CN113329285A (en) * | 2020-02-28 | 2021-08-31 | Oppo广东移动通信有限公司 | Earphone box and wireless earphone |
-
2019
- 2019-02-01 CN CN201920184272.XU patent/CN209462049U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113329285A (en) * | 2020-02-28 | 2021-08-31 | Oppo广东移动通信有限公司 | Earphone box and wireless earphone |
| CN113038319A (en) * | 2021-02-26 | 2021-06-25 | 深圳市蓝蜂时代实业有限公司 | Circuit for realizing charging and communication functions of TWS charging box and earphone |
| CN113038319B (en) * | 2021-02-26 | 2022-08-05 | 深圳市蓝蜂时代实业有限公司 | Circuit for realizing charging and communication functions of TWS charging box and earphone |
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