CN205610253U - Electronic switch and emergency power source connector - Google Patents
Electronic switch and emergency power source connector Download PDFInfo
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- CN205610253U CN205610253U CN201620216926.9U CN201620216926U CN205610253U CN 205610253 U CN205610253 U CN 205610253U CN 201620216926 U CN201620216926 U CN 201620216926U CN 205610253 U CN205610253 U CN 205610253U
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Abstract
The utility model relates to an electronic switch connects between emergency power source and load, including field effect transistor module, comparison control module and micro - processing module, the power that emergency power source provided is received to the field effect transistor module, and micro - processing module, comparison control module are connected with the field effect transistor module respectively. Micro - processing module and control module relatively all can detect the voltage signal and the current signal of this power, judge according to the voltage, the current signal that detect respectively whether normal, in case when voltage or current abnormality take place, will be quick close the field effect transistor in the field effect transistor module, avoid emergency power source to continue the power supply to car battery group to avoid the damage of emergency power source and car battery group. Through micro - processing module and control module's duplicate protection relatively, even wherein appear in arbitrary module unexpectedly, can not influence the control to the field effect transistor module, to the protection of emergency power source and car battery group safe and reliable more yet. In addition, still provide an emergency power source connector.
Description
Technical field
This utility model relates to supply of electric power technical field, particularly relates to electrical switch and emergency power supply connects
Device.
Background technology
The power supply needing the set of cells using automobile self to provide during automobile starting is lighted a fire to start electromotor.One
When the set of cells power consumption of denier automobile self arrives to a certain degree and causes set of cells output voltage relatively low, vapour
The set of cells of car cannot provide enough voltage to realize igniting, causes automobile to start.In real life,
People generally have for interim igniting to start the emergency standby power of vapour on automobile.Use emergency power
During power supply, need to use the ignition lead adapter with battery clamp to connect stand-by power supply and automobile batteries group, and
And use battery clamp to be clamped on positive pole and the negative pole of automobile batteries group, by the set of cells of emergency standby power
Power to automobile batteries group.
But, when people use emergency standby power, problems with often occurs: one, emergency power is electric
Source connects instead with the both positive and negative polarity of automobile batteries group, can cause and be worth expensive automobile batteries group permanent damage；
Its two, the set of cells used by automobile has multiple voltage types such as 12 volts, 24 volts or 48 volts, and emergency power
Power supply also divides multiple voltage specification, if being connected in automobile batteries group by unmatched stand-by power supply, it will tight
The electric meter system of weight damage car, even causes automobile batteries permanent damage；Its three, emergency power
Power supply is after starting automobile success, and vehicle-mounted electromotor will generate electricity and enter to emergency standby power set of cells immediately
Row charging, its charging current is very big, if if uncontrolled, as long as a few minutes, will result in set of cells and sends out
Cause thermal damage.Accordingly, it would be desirable to the set of cells of emergency standby power with automobile is protected, it is to avoid to emergent standby
With power supply and the damage of automobile batteries group, also avoid the person peace to driver because operator is improper
Full infringement.
Utility model content
Based on this, it is necessary to for by emergency standby power when automobile batteries group is powered, can be to emergent standby
The problem causing damage by power supply and automobile batteries group, it is provided that a kind of electrical switch and emergency power supply adapter.
A kind of electrical switch, is connected between emergency power supply and load, including field effect transistor module, compares control
Molding block and micro treatment module；Described field effect transistor module includes at least one field effect transistor, is used for receiving institute
State the power supply signal that emergency power supply provides；The described control module that compares is connected with described field effect transistor module, uses
The signal of telecommunication in the output according to described field effect transistor module controls the effect of field described in described field effect transistor module
Should the break-make of pipe；Described micro treatment module is connected with described field effect transistor module, is used for controlling described field effect
The break-make of tube module.
Wherein in an embodiment, described compare control module include the first testing circuit, decision circuitry and
Control circuit；
Described first testing circuit is used for detecting the signal of telecommunication of described field effect transistor module, and by described detection
The signal of telecommunication passes to described decision circuitry；
Described decision circuitry is connected with described control circuit, drives described control circuit to control according to judged result
The break-make of described field effect transistor module.
Wherein in an embodiment, described decision circuitry includes the second voltage comparator；Described second voltage
The normal phase input end of comparator is connected with described first testing circuit；The outfan of described second voltage comparator
It is connected with described control circuit；The negative input ground connection of described second voltage comparator.
Wherein in an embodiment, described micro treatment module include main control chip, the second testing circuit,
Three testing circuit；Described main control chip is connected with described second testing circuit, three testing circuit respectively；
Described second testing circuit is used for detecting the signal of telecommunication of described field effect transistor module, and by described detection
The signal of telecommunication passes to described main control chip；
Described three testing circuit is supplied to the telecommunications of described field effect transistor module for detecting described emergency power supply
Number, and the signal of telecommunication of described detection is passed to described main control chip；
Described main control chip controls the break-make of described field effect transistor module according to the signal of telecommunication of described detection.
Wherein in an embodiment, described micro treatment module also includes the warning electricity for pointing out warning message
Road, described main control chip is connected with described warning circuit, and controls the work of described warning circuit.
Wherein in an embodiment, described warning circuit includes LED light and/or buzzer；Described
LED light and/or buzzer are connected with described main control chip respectively.
Wherein in an embodiment, described micro treatment module also includes that mu balanced circuit, described mu balanced circuit divide
It is not connected with described field effect module, main control chip block, is used for exporting galvanic current and presses and be transferred to institute
State main control chip.
Additionally, also provide for a kind of emergency power supply adapter, including battery clamp and connection terminal, also include above-mentioned
Electrical switch, described electrical switch is connected between emergency power supply and load, and described battery clamp is negative with described
Carry and connect；Described connection terminal is connected with described emergency power supply.
Wherein in an embodiment, described connection terminal includes that the first connection terminal and second connects terminal；
Described first connects terminal is connected with the negative pole of described emergency power supply；Described second connects terminal meets an urgent need with described
The positive pole of power supply connects.
Wherein in an embodiment, described battery clamp includes the first battery clamp and the second battery clamp；
Described first battery clamp is black, and the negative pole with described electrical switch, load is connected respectively；
Described second battery clamp is red, respectively with the described positive pole connection being connected terminal, load.
In above-mentioned electrical switch, the power supply that field effect transistor module reception emergency power supply provides, micro treatment module,
Relatively control module is connected with field effect transistor module respectively, micro treatment module with compare control module and all can examine
Surveying voltage signal and the current signal of this power supply, voltage signal and current signal judgement according to detection are respectively
No there is the situations such as charging voltage is too high or too low, charging current is too high or too low, voltage or electricity once occur
Flow inappropriate situation, will quickly close the field effect transistor in field effect transistor module, it is to avoid emergency power supply
Continue to power to automobile batteries group, thus avoid the damage of emergency power supply and automobile batteries group.By micro-process
Module and the duplicate protection comparing control module, even if occurring unexpected in one of them module, do not interfere with yet
Closing control to field effect transistor module, more safe and reliable with the protection of automobile batteries group to emergency power supply.
Accompanying drawing explanation
Fig. 1 is the frame principle of electrical switch；
Fig. 2 is the circuit theory diagrams of electrical switch；
Fig. 3 is the structural representation of emergency power supply adapter.
Detailed description of the invention
For the ease of understanding this utility model, below with reference to relevant drawings, this utility model is carried out more comprehensively
Description.Accompanying drawing gives preferred embodiment of the present utility model.But, this utility model can be to be permitted
The most different forms realizes, however it is not limited to embodiment described herein.On the contrary, provide these to implement
The purpose of example is to make the understanding to disclosure of the present utility model more thorough comprehensively.
Unless otherwise defined, all of technology used herein and scientific terminology with belong to of the present utility model
The implication that those skilled in the art are generally understood that is identical.Institute in description of the present utility model herein
The term used is intended merely to describe the purpose of specific embodiment, it is not intended that limit this utility model.This
The term "and/or" that literary composition is used includes arbitrary and all of group of one or more relevant Listed Items
Close.
The frame principle for electrical switch as shown in Figure 1, wherein, electrical switch 10 is connected to answer urgent telegram
Between source 20 and load 30 (automobile batteries groups).In the present embodiment, load 30 predominantly automobile batteries
Group, in other embodiments, it is also possible to during for motorcycle, steamer or other startups, need to use the electricity of self
The power supply that pond group provides is lighted a fire to start electromotor.Electrical switch 10 includes field effect transistor module 110, compares
Control module 120 and micro treatment module 130.Field effect transistor module 110 includes at least one field effect transistor, uses
In receiving the power supply signal that emergency power supply 20 provides；Relatively control module 120 is with field effect transistor module 110 even
Connecing, the signal of telecommunication for the output according to field effect transistor module 110 comes controlling filed effect tube module 110 midfield
The break-make of effect pipe.Micro treatment module 130 is connected with field effect transistor module 110, is used for controlling field effect transistor
The break-make of module 110.
The circuit theory diagrams for electrical switch as shown in Figure 2, in figure, field effect tube module 110 includes transmission
Multiple field effect transistor of big electric current and field effect transistor drive circuit 111.Wherein, micro treatment module 130 controlling filed
Effect tube drive circuit 111 drives the break-make of field effect transistor.The quantity of field effect transistor in field effect transistor module 110
Can set according to the size of emergency power supply output electric current.In the present embodiment, the number of field effect transistor is
Four, and four field effect transistor (Q1, Q2, Q3, Q4) are powerful field effect transistor.Real at other
Executing in example, if the electric current of emergency power supply 20 output is less, then the quantity of field effect transistor can corresponding reduce, can
Think one or two, or use lower-powered field effect transistor, the quantity of its field effect transistor and power
Size can adjust according to the actual requirements.
In the present embodiment, compare control module 120 and include the first testing circuit 121, decision circuitry 123 and
Control circuit 125.First testing circuit 121 is for detecting the signal of telecommunication of field effect transistor module 110, and will examine
The signal of telecommunication surveyed passes to decision circuitry 123.Decision circuitry 123 is connected with control circuit 125, according to judgement
Result drives the break-make of control circuit 125 controlling filed effect tube module 110.
Wherein, the first testing circuit 121 includes the first voltage comparator U1 and multiple resistance；Decision circuitry
123 include the second voltage comparator U2；Control circuit 125 includes two switching tubes (Q8, Q9).Second
Normal phase input end and first testing circuit 121 of voltage comparator U2 connect；Second voltage comparator U2's
Outfan is connected with control circuit 125；The negative input ground connection of the second voltage comparator U2.
Multiple resistance of the first testing circuit 121 are for detecting the reference voltage signal of field effect transistor module 110
And current signal, and by the first voltage comparator U1, the reference voltage signal detected and current signal are passed
The second voltage comparator U2 in defeated decision circuitry 123 compares judgement, if reference voltage signal is beyond pre-
If setting time, then the switching tube (Q8, Q9) in control circuit 125 drive control, disconnect field effect
Field effect transistor (Q1, Q2, Q3, Q4) in tube module 110.In the present embodiment, the second voltage ratio is relatively
Device U2 judges whether that charging voltage is too high or too low according to voltage signal and the current signal of detection, charges
, once there is voltage or the inappropriate situation of electric current, closedown real-time in the situations such as electric current is too high or too low
Field effect transistor (Q1, Q2, Q3, Q4) in field effect transistor module 110, it is to avoid emergency power supply continues to vapour
Car is battery-powered, thus avoids the damage of emergency power supply and automobile batteries group.
In the present embodiment, micro treatment module 130 include main control chip U3, the second testing circuit 132,
Three testing circuit 134.Main control chip U3 is respectively with the second testing circuit 132, three testing circuit 134 even
Connect.Second testing circuit 132 is for detecting the signal of telecommunication of field effect transistor module, and is passed by the signal of telecommunication of detection
Passing main control chip U3, three testing circuit 134 is used for detecting emergency power supply 20 and is supplied to field effect pipe die
The signal of telecommunication of block 110, and the signal of telecommunication of detection is passed to main control chip U3.Main control chip U3 is according to connecing
The voltage signal of the reception received and current signal judge that electric current that emergency power supply 20 exports and voltage are the most too high
Or it is too low.If abnormal (too high or too low) occur in voltage signal or current signal, then to field effect
Each field effect transistor (Q1, Q2, Q3, Q4) of tube module 110 sends control signal, make field effect transistor (Q1,
Q2, Q3, Q4) cut-off, it is to avoid emergency power supply 20 continues to power to automobile batteries group 30, thus avoid right
The infringement that emergency power supply 20 and automobile batteries group 30 cause.
Micro treatment module 130 also includes the warning circuit 136 for pointing out warning message, wherein, main control chip
U3 is connected with warning circuit 136, and main control chip U3 controls the work of warning circuit 136.In this enforcement
In example, warning circuit includes LED light and buzzer, and wherein, LED light includes for representing shape
The correct green LED display lamp D1 of state and represent the red LED display lamp D2 of status error, LED refers to
Showing that the negative electrode of lamp D1, D2 is all connected with main control chip U3, the anode of LED light (D1, D2) divides
It is not connected with field effect transistor module 110 through resistance R16, resistance R17.In other embodiments, LED refers to
Show that the quantity of lamp can set according to the actual requirements, can be one, it is also possible to be set to multiple.
In this embodiment, the input of buzzer BEE is connected with main control chip U3 through resistance R8, buzzer
The outfan of BEE is through switching tube Q13 ground connection, and sends alarm sound under the control of main control chip U3.
In other embodiments, buzzer BEE can also substitute with shaking device.Second testing circuit 132 He
The voltage signal detected is exported to main control chip U3 by three testing circuit 134, and main control chip U3 is to inspection
After all voltage signals measured and current signal carry out computing, if the voltage signal detected and current signal
Occur abnormal, then control LED light (D1, D2) and buzzer BEE carries out corresponding acousto-optic warning,
To remind user to note.
Micro treatment module 130 also includes mu balanced circuit 138, mu balanced circuit 138 respectively with field effect module 110,
Main control chip U3 connects, and is used for exporting galvanic current and presses and be transferred to main control chip U3.In this enforcement
In example, mu balanced circuit 138 includes manostat U4 and multiple electric capacity (C1, C4, C7), emergency power supply 20
The voltage provided exports main control chip U3 after mu balanced circuit 138, and thus main control chip U3 provides stable
Direct-current working volts.
The structural representation for emergency power supply adapter as shown in Figure 3, emergency power supply adapter includes connecting
Terminal 210 and battery clamp 220, also include above-mentioned electrical switch 10.Wherein, connect terminal 210 to include
First connects terminal 211 and second connects terminal 213；First connects the negative pole of terminal 211 and emergency power supply even
Connect；Second connects terminal 213 is connected with the positive pole of emergency power supply.Battery clamp 220 includes the first battery clamp 221
With the second battery clamp 223.Owing to the set of cells of automobile includes positive pole and negative pole, it is therefore desirable to use two storage batterys
Folder is clamped on positive pole and negative pole respectively, in order to distinguish the battery clamp being clamped in anode with negative pole, and two
Battery clamp is wrapped with the insulating cement of different colours, and the first battery clamp 223 of parcel black insulating cement is clamped in
The negative pole of automobile batteries group；Youngster's battery clamp 221 of the red insulating cement of parcel is just being clamped in automobile batteries group
Pole.Electrical switch 10 is located between connection terminal 210 and the first battery clamp 221, and electrical switch 10 is sealed
Be contained in a housing, the second battery clamp 223 by wire directly be connected terminal 210 and connect.
Emergency standby power is a kind of portable power supply, including the set of cells of small volume.Use emergent standby
When using power supply, need to be connected in stand-by power supply and automobile batteries group emergency power supply adapter.First connects
Terminal 211 and the second connection terminal 213 are inserted on the port of emergency power supply, the first battery clamp 221, second
Battery clamp 223 is clamped in negative pole and the positive pole of automobile batteries group respectively, by the battery of emergency standby power
Group is powered to automobile batteries group.
Now, arbitrary module detection field effect transistor module in control module 120 or micro treatment module 130 is compared
The voltage signal of 110 and current signal, compare control module 120 or micro treatment module 130 judges field effect transistor
When the voltage signal of module 22 or current signal are too high, there is shown the both positive and negative polarity of existing battery clamp 220 connect anti-or
First battery clamp the 221, second battery clamp 223 is touched the situation of short circuit and is occurred, and compares control module 120 or micro-
Processing module 130 then can each field effect transistor (Q1, Q2, Q3, Q4) in controlling filed effect tube module 110
Cut-off, moment automatic shutdown circuit within 0.001 second.Further, micro treatment module 130 controls red LED
Display lamp D1 and buzzer work, thus send sound and light alarm signal.
Additionally, compare control module 120 or micro treatment module 130 also by the voltage signal according to detection and
Current signal judges that emergency power supply 20 output voltage is the most too low or too high, as emergency power supply 20 exports electricity
Press through low or too high, compare control module 120 or micro treatment module 130 then can controlling filed effect tube module
Each field effect transistor (Q1, Q2, Q3, Q4) cut-off in 110, moment automatic shutdown circuit.Further,
Micro treatment module 130 controls red LED display lamp D1 and buzzer work, thus sends sound and light alarm
Signal.
Further, compare control module 120 or micro treatment module 130 can also answer urgent telegram by detection and judgement
The output electric current in source 20 is the most too high, once finds that the electric current of emergency power supply 20 output is too high, compares control
Module 120 or micro treatment module 130 then can each field effect transistor in controlling filed effect tube module 110 (Q1,
Q2, Q3, Q4) cut-off, moment automatic shutdown circuit.Further, micro treatment module 130 controls red instruction
Lamp D1 and buzzer work, thus send sound and light alarm signal.
It addition, compare control module 120 or before and after micro treatment module 130 can also detect automotive ignition automatically
The change in voltage of automobile batteries group 30, after finding igniting, the voltage of automobile batteries group 30 is higher than electricity before igniting
In the case of pressure, compare control module 120 or micro treatment module 130 then can controlling filed effect tube module 110
In each field effect transistor (Q1, Q2, Q3, Q4) cut-off, moment automatic shutdown circuit.Meanwhile, micro-place
Reason module 130 controls red LED display lamp D1 and buzzer work, thus sends sound and light alarm signal.
Visible, by micro treatment module and the duplicate protection comparing control module in above-mentioned electrical switch, i.e.
Make appearance in one of them module unexpected, also do not interfere with the closing control to field effect transistor module, to emergent
Power supply is more safe and reliable with the protection of automobile batteries group, has anti-short circuit, anti-reverse, anti-reverse charging, anti-low
Pressure, anti-high pressure, the function such as anti-overflow, and the intelligent high-current switch that acousto-optic is reported to the police, have extremely strong anti-
Interference protection function.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right
The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills
There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and
In detail, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, it is right
For those of ordinary skill in the art, without departing from the concept of the premise utility, it is also possible to do
Going out some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, this utility model is special
The protection domain of profit should be as the criterion with claims.
Claims (10)
1. an electrical switch, is connected between emergency power supply and load, including field effect transistor module, compares
Control module and micro treatment module；
Described field effect transistor module includes at least one field effect transistor, for receiving what described emergency power supply provided
Power supply signal；
The described control module that compares is connected with described field effect transistor module, for according to described field effect transistor module
The signal of telecommunication of output control the break-make of field effect transistor described in described field effect transistor module；
Described micro treatment module is connected with described field effect transistor module, for controlling described field effect transistor module
Break-make.
Electrical switch the most according to claim 1, it is characterised in that the described control module that compares includes
First testing circuit, decision circuitry and control circuit；
Described first testing circuit is used for detecting the signal of telecommunication of described field effect transistor module, and by described detection
The signal of telecommunication passes to described decision circuitry；
Described decision circuitry is connected with described control circuit, drives described control circuit to control according to judged result
The break-make of described field effect transistor module.
Electrical switch the most according to claim 2, it is characterised in that described decision circuitry includes second
Voltage comparator；The normal phase input end of described second voltage comparator is connected with described first testing circuit；Institute
The outfan stating the second voltage comparator is connected with described control circuit；The negative sense of described second voltage comparator
Input end grounding.
Electrical switch the most according to claim 1, it is characterised in that described micro treatment module includes main
Control chip, the second testing circuit, three testing circuit；Described main control chip is electric with described second detection respectively
Road, three testing circuit connect；
Described second testing circuit is used for detecting the signal of telecommunication of described field effect transistor module, and by described detection
The signal of telecommunication passes to described main control chip；
Described three testing circuit is supplied to the telecommunications of described field effect transistor module for detecting described emergency power supply
Number, and the signal of telecommunication of described detection is passed to described main control chip；
Described main control chip controls the break-make of described field effect transistor module according to the signal of telecommunication of described detection.
Electrical switch the most according to claim 4, it is characterised in that described micro treatment module also includes
For pointing out the warning circuit of warning message, described main control chip is connected with described warning circuit, and controls institute
State the work of warning circuit.
Electrical switch the most according to claim 5, it is characterised in that described warning circuit includes LED
Display lamp and/or buzzer；Described LED light and/or buzzer are connected with described main control chip respectively.
Electrical switch the most according to claim 5, it is characterised in that described micro treatment module also includes
Mu balanced circuit, described mu balanced circuit is connected with described field effect module, main control chip block respectively, is used for exporting
Galvanic current is pressed and is transferred to described main control chip.
8. an emergency power supply adapter, including battery clamp and connect terminal, it is characterised in that also include as
Electrical switch according to any one of claim 1～7, described electrical switch is connected to emergency power supply and load
Between, described battery clamp is connected with described load；Described connection terminal is connected with described emergency power supply.
Emergency power supply adapter the most according to claim 8, it is characterised in that described connection terminal bag
Include the first connection terminal and second and connect terminal；Described first connects the negative pole of terminal and described emergency power supply even
Connect；Described second connects terminal is connected with the positive pole of described emergency power supply.
Emergency power supply adapter the most according to claim 9, it is characterised in that described storage battery clip pack
Include the first battery clamp and the second battery clamp；
Described first battery clamp is black, and the negative pole with described electrical switch, load is connected respectively；
Described second battery clamp is red, respectively with the described positive pole connection being connected terminal, load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620216926.9U CN205610253U (en) | 2016-03-21 | 2016-03-21 | Electronic switch and emergency power source connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620216926.9U CN205610253U (en) | 2016-03-21 | 2016-03-21 | Electronic switch and emergency power source connector |
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| Publication Number | Publication Date |
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| CN205610253U true CN205610253U (en) | 2016-09-28 |
Family
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| CN201620216926.9U Active CN205610253U (en) | 2016-03-21 | 2016-03-21 | Electronic switch and emergency power source connector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712177A (en) * | 2016-12-26 | 2017-05-24 | 苏州绿恺动力电子科技有限公司 | Battery clip collinear communication system for emergency start power supply of automobile |
| CN107861444A (en) * | 2017-12-22 | 2018-03-30 | 江西江铃汽车集团改装车股份有限公司 | Integrated electrical system |
| CN114368355A (en) * | 2021-12-01 | 2022-04-19 | 深圳市康为宏科技有限公司 | Auxiliary starting device and method for long-time shelving of automobile power supply |
| CN114552743A (en) * | 2022-03-17 | 2022-05-27 | 陈小玲 | Dual-drive charging adapter |
| WO2023082083A1 (en) * | 2021-11-10 | 2023-05-19 | 深圳市华思旭科技有限公司 | Voltage measurement circuit, vehicle jump starter and battery clip |
-
2016
- 2016-03-21 CN CN201620216926.9U patent/CN205610253U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712177A (en) * | 2016-12-26 | 2017-05-24 | 苏州绿恺动力电子科技有限公司 | Battery clip collinear communication system for emergency start power supply of automobile |
| CN107861444A (en) * | 2017-12-22 | 2018-03-30 | 江西江铃汽车集团改装车股份有限公司 | Integrated electrical system |
| CN107861444B (en) * | 2017-12-22 | 2023-08-01 | 江西江铃汽车集团改装车股份有限公司 | Integrated electrical system |
| WO2023082083A1 (en) * | 2021-11-10 | 2023-05-19 | 深圳市华思旭科技有限公司 | Voltage measurement circuit, vehicle jump starter and battery clip |
| CN114368355A (en) * | 2021-12-01 | 2022-04-19 | 深圳市康为宏科技有限公司 | Auxiliary starting device and method for long-time shelving of automobile power supply |
| CN114368355B (en) * | 2021-12-01 | 2023-12-22 | 深圳市康为宏科技有限公司 | Auxiliary starting device and method for long-time shelving of automobile power supply |
| CN114552743A (en) * | 2022-03-17 | 2022-05-27 | 陈小玲 | Dual-drive charging adapter |
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