CN105337319B - Electric tool and its power supply circuit - Google Patents
Electric tool and its power supply circuit Download PDFInfo
- Publication number
- CN105337319B CN105337319B CN201410305343.9A CN201410305343A CN105337319B CN 105337319 B CN105337319 B CN 105337319B CN 201410305343 A CN201410305343 A CN 201410305343A CN 105337319 B CN105337319 B CN 105337319B
- Authority
- CN
- China
- Prior art keywords
- controlling switch
- circuit
- battery core
- control
- electrical appliance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of power supply circuit, including：Battery core pack, electrical appliance and control circuit, electrical appliance are formed with battery core pack and electrically connected；Control circuit includes：MCU controllers, voltage collection circuit, voltage collection circuit can gather the battery core voltage of battery core pack；Control circuit also includes：First controlling switch, compensation controlling switch, the first drive circuit and compensation drive circuit；First controlling switch is connected on electrical appliance and formed with battery core pack in the circuit electrically connected, and compensation controlling switch is in parallel with electrical appliance composition；The ratio between battery core voltage that MCU controllers are gathered according to voltage collection circuit and the rated voltage of electrical appliance send the first control signal by the first drive circuit to the control terminal of the first controlling switch, and compensation drive circuit sends the Separation control compensation controlling switch conducting of the first control signal in MCU controllers.Battery bag with the battery core voltage different from rated voltage can be converted into the battery bag for being adapted to electrical appliance by the power supply circuit of the present invention.
Description
Technical field
The present invention relates to a kind of power tool, and in particular to the electronic work that a kind of output voltage of battery bag can be changed
Tool and its power supply circuit.
Background technology
In use, a tool host is generally only capable of having specific output electricity using a kind of to existing electric tool
The battery bag of pressure, for example, rated voltage when tool host works under nominal power is 18V, then the tool host can only
Using the battery bag with 18V output voltages, and the battery bag with 56V, 36V output voltage generally can not be used.So, one
When the individual tool host with 18V rated voltages needs a battery bag power supply, and limited by condition of work, only had at one's side
There is the battery bag of a 36V output voltage, at this moment, the battery bag can not be then that the tool host is powered, and influence the continuation of work.
The content of the invention
, should it is an object of the invention to provide a kind of electric tool and its power supply circuit to solve the deficiencies in the prior art
Battery bag with the battery core voltage different from rated voltage can be converted into the battery bag for being adapted to electrical appliance by power supply circuit.
In order to realize above-mentioned target, the present invention adopts the following technical scheme that：
A kind of power supply circuit, including：Battery core pack, electrical appliance and control circuit, wherein, battery core pack is by multiple battery cores
Unit is formed, and electrical appliance is formed with battery core pack and electrically connected；Control circuit includes：MCU controllers, voltage collection circuit, voltage
Acquisition Circuit is at least partly connected electrically between battery core pack and MCU controllers, and it can gather the battery core voltage of battery core pack simultaneously
Feed back to MCU controllers；Control circuit also includes：First controlling switch, compensation controlling switch, the first controlling switch, compensation control
System switch also wraps including two switch terminals with a control terminal that two switch terminals can be controlled to connect or disconnect, power supply circuit
Include：The first controlling switch, the first drive circuit and compensation drive circuit of the control terminal of compensation controlling switch are driven respectively；First
Circuit between two switch terminals of controlling switch is connected on electrical appliance and formed with battery core pack in the circuit electrically connected, compensation control
The circuit made between two switch terminals of switch is in parallel with electrical appliance composition；First drive circuit respectively with MCU controllers and
The control terminal electrical connection of one controlling switch, battery core voltage that MCU controllers are gathered according to voltage collection circuit and electrical appliance
The ratio between rated voltage sends the first control signal, compensation driving electricity by the first drive circuit to the control terminal of the first controlling switch
Road is electrically connected to the control terminal of compensation controlling switch, and compensation drive circuit is between MCU controllers send the first control signal
Every control compensation controlling switch conducting.
Further, MCU controllers electrically connect with compensation drive circuit, and MCU controllers are by compensation drive circuit to benefit
The control terminal for repaying controlling switch sends the second control signal, and MCU controllers send second at the interval for sending the first control signal
Control signal.
Further, the control electric capacity being connected in parallel with electrical appliance, control electricity are comprised at least in compensation drive circuit
Hold to form with the control terminal of compensation controlling switch as control signal input point with one end that electrical appliance negative pole is connected and electrically connect.
Further, control circuit also includes：It is connected on electrical appliance and forms adopting in the circuit electrically connected with battery core pack
Sample resistance, second controlling switch with two switch terminals and control terminal and the control terminal for driving the second controlling switch
Second drive circuit；The high-pressure side of sampling resistor is electrically connected to MCU controllers；Between two switch terminals of the second controlling switch
Circuit is connected on electrical appliance and formed with battery core pack in the circuit electrically connected；MCU controllers are formed with the second drive circuit and are electrically connected
Connecing, MCU controllers control two switch terminals of the second controlling switch to connect when the electric current on sampling resistor is less than preset value, and
Two switch terminals of the second controlling switch are controlled to turn off when the electric current on sampling resistor is more than or equal to preset value.
Further, the first controlling switch, the second controlling switch and compensation controlling switch are switch mosfet.
Further, voltage collection circuit comprises at least：One sampling capacitance, one end of sampling capacitance and battery core pack
Positive pole connects, and the end is electrically connected to MCU controllers as voltage using point.
The present invention also proposes a kind of electric tool, and it includes：One tool host and at least one battery bag, instrument master
Machine includes above-described electrical appliance, and battery bag includes：Above-described battery core pack, the battery core pack tool of different battery bags
There is different number of battery core unit；When it is its power supply to be attached to tool host, battery bag and tool host are formed battery bag
Entirety at least form above-described power supply circuit.
Further, control circuit is arranged in tool host.
Further, control circuit is arranged in battery bag.
Further, electrical appliance is motor.
The present invention is advantageous in that：The power supply circuit of the present invention, the battery bag with higher battery core voltage can be made
The electrical appliance of low rated voltage can be used in, so that a battery bag can apply at least two voltage platforms, increase
The versatility of battery bag.On the other hand, the battery bag with higher battery core voltage, therefore, will also with higher capacitance
Battery bag with higher battery core voltage is used in the electrical appliance of low rated voltage, can effectively improve the work of electric tool
Time, moreover, user need not buy reserve battery bag in addition, significantly reduce job costs.
Brief description of the drawings
Fig. 1 show the structural representation of the electric tool of the present invention；
Fig. 2 show the structural representation of the first embodiment of the power supply circuit in the electric tool of the present invention；
Fig. 3 show the structural representation of the voltage collection circuit in Fig. 2；
Fig. 4 show the structural representation of the second embodiment of the power supply circuit in the electric tool of the present invention；
Fig. 5 show the structural representation of the compensation drive circuit in Fig. 4.
Embodiment
Make specific introduce to the present invention below in conjunction with the drawings and specific embodiments.
The present invention proposes a kind of electric tool, and the power supply circuit that each component in electric tool is formed.
Fig. 1 show the structural representation of the electric tool of the present invention.Fig. 1 is refer to, in of the invention, by taking electric saw as an example,
Certainly, the signified electric tool 100 of the present invention is not limited thereto, and can be various instruments common to those skilled in the art,
Such as hay mover, pruning machine, electric drill etc..In the present invention, the electric tool 100 includes tool host 110 and battery bag 120.
Fig. 2 show the structural representation of the first embodiment of the power supply circuit in the electric tool of the present invention, please in the lump
Referring to Figures 1 and 2：Main part of the tool host 110 as electric tool 100, its work(except including implementation tool function
Can annex（Figure is not marked）, in addition to the electrical appliance 111 of power is provided for function accessories, in the present embodiment, the electrical appliance 111 is excellent
Elect motor as.
Battery bag 120 is used to provide energy to tool host 110, and it includes battery core pack 121, in the present embodiment, is
Expand the capacity of battery bag 120 as far as possible so that battery core pack 121 is by multiple battery core units（Figure is not marked）Composition.In addition, I
Know that the battery core pack 121 of different battery bags 120 generally has different number of battery core unit, so as to formed have difference
The battery bag 120 of battery core voltage.In the present embodiment, battery core pack 121 is formed with electrical appliance 111 and electrically connected, including positive output
B+ and negative output terminal b- is held, tool host is given by the battery core pack 121 in battery bag 120 when being worked so as to electric tool 100
Electrical appliance 111 in 110 is powered, and a power supply circuit is formed in electric tool 100.
In the present embodiment, power supply circuit is used to the electric energy in battery core pack 121 being supplied to electrical appliance 111, its except
Outside battery core pack 121 and electrical appliance 111, in addition to one can control between battery core pack 121 and electrical appliance 111
The control circuit of electrical connection, the control circuit can be arranged in tool host 110, can also be arranged in battery bag 120, can
It is actually needed and is configured with basis.
In the present invention, the control circuit includes voltage collection circuit 131, the first controlling switch Q1, compensation controlling switch
Q2, the first drive circuit 132, compensation drive circuit 133, MCU controllers 134, sampling resistor R1, the second controlling switch Q3 and
Second drive circuit 135.
Voltage collection circuit 131 is used for the battery core voltage for gathering battery core pack 121.Voltage collection circuit 131 respectively with electricity
Chi Xin groups 121 and MCU controllers 134 connect so that voltage collection circuit 131 is connected electrically in battery core pack 121 and MCU controllers
Between 134, the battery core Voltage Feedback of the battery core pack 121 so as to collect is MCU controllers 134.
First controlling switch Q1 includes two switch terminals P1, P2 and a control terminal P3.Two in first controlling switch Q1
Circuit between individual switch terminals P1, P2 is connected on electrical appliance 111 and battery core pack 121 is formed in the circuit of electrical connection, more specifically
, one of switch terminals P1 is connected to the negative output terminal b- of battery core pack 121, and another switch terminals P2 is electrically connected to sampling electricity
Hinder R1 low-pressure end；First controlling switch Q1 control terminal P3 can control the first controlling switch Q1's by the signal received
Connection or disconnection between two switch terminals P1, P2.
Compensation controlling switch Q2 also includes two switch terminals P4, P5 and a control terminal P6.Compensate the two of controlling switch Q2
Circuit between individual switch terminals P4, P5 forms in parallel with electrical appliance 111, and more specifically, one of switch terminals P5 is connected to use
The positive input terminal m+ of electrical equipment 111, another switch terminals P4 are electrically connected to the negative input end m- of electrical appliance 111.Compensate controlling switch
Q2 control terminal P6 can also control the company between compensation controlling switch Q2 two switch terminals P4, P5 by the signal received
Logical or disconnection.In the present embodiment, the first controlling switch Q1 and compensation controlling switch Q2 is switch mosfet.
First drive circuit 132 and compensation drive circuit 133 are respectively used to drive the first controlling switch Q1, compensation control to open
Close Q2 opening and closing.Wherein, control terminal P3 and MCU controller 134 of first drive circuit 132 respectively with the first controlling switch Q1 connects
Connect, so as to which the control signal received to be sent to the first controlling switch Q1 control terminal P3；Compensation drive circuit 133 is distinguished
It is connected with control terminal P6 and the MCU controller 134 for compensating controlling switch Q2, so as to which the control signal received is sent into benefit
Repay controlling switch Q2 control terminal P6.
MCU controllers 134 electrically connect with the first drive circuit 132 and compensation drive circuit 133 respectively, and are driven by first
Dynamic circuit 132 and compensation drive circuit 133 send control signal to the first controlling switch Q1 and compensation controlling switch Q2.Specifically
, MCU controllers 134 send the first control signal by the first drive circuit 132 to the first controlling switch Q1 control terminal P3,
It is the ratio between rated voltage of battery core voltage and the electrical appliance 111 of the battery core pack 121 gathered according to voltage collection circuit 131
To send the first control signal, also, in the interval that MCU controllers 134 send the first control signal, MCU controllers 134 are also
Second control signal is sent to compensation controlling switch Q2 control terminal P6 by compensation drive circuit 133, and in the second control letter
Cause that sending compensation controlling switch Q2 in the interval of the first control signal in MCU controllers 134 is on shape in the presence of number
State.For example, when the battery core voltage of battery core pack 121 in battery bag 120 is 36V, and the rated voltage of electrical appliance 111 is 18V,
So in order to which the battery bag 120 normally can power for the electrical appliance 111, in the preceding half period in a cycle, MCU
Controller 134 sends the first control signal by the first drive circuit 132 to the first controlling switch Q1 control terminal P3, now simultaneously
Any control signal is not sent to compensation controlling switch Q2, and in second half of the cycle, MCU controllers 134 stop sending the
One control signal, and the second control signal is now sent to compensation controlling switch Q2 by compensation drive circuit 133.
Sampling resistor R1 is connected on electrical appliance 111 and formed with battery core pack 121 in the circuit electrically connected.Sampling resistor R1's
One end is connected on a first controlling switch Q1 switch terminals P2, and the other end is connected with the second controlling switch Q3, and samples electricity
Resistance R1 high-pressure side also electrically connects with MCU controllers 134, that is to say one end that sampling resistor R1 is connected with the second controlling switch Q3
Electrically connected with MCU controllers 134.
Second controlling switch Q3 also includes two switch terminals P7, P8 and a control terminal P9.The two of second controlling switch Q3
Circuit between individual switch terminals P7, P8 is connected on electrical appliance 111 and formed with battery core pack 121 in the circuit electrically connected, that is to say
One of switch terminals P8 is connected to the negative output terminal b- of electrical appliance 111, another switch terminals P7 and sampling resistor R1 high pressure
End electrical connection；Second controlling switch Q3 control terminal P9 can control two of the second controlling switch Q3 by the signal received
Connection or disconnection between switch terminals P7, P8.In the present embodiment, the second controlling switch Q3 is also switch mosfet.
Second drive circuit 135 is used for the opening and closing for driving the second controlling switch Q3, and it is respectively with the second controlling switch Q3's
Control terminal P9 and MCU controller 134 electrically connects.When flowing through the electric current on sampling resistor R1 and being less than a preset value, MCU controllers
134 can send the 3rd control signal second by the control terminal P9 of from the second drive circuit 135 to the second controlling switch Q3
Controlling switch Q3 two switch terminals P7, P8 connection, and when flowing through the electric current on sampling resistor R1 and being more than the preset value, MCU
Controller 134 controls the second controlling switch Q3 two switch terminals P7, P8 to disconnect.Here, the preset value corresponds to electrical appliance 111
Rated power, can be rated current, therefore, when the electric current for flowing through sampling resistor R1 is more than rated current, be controlled by MCU
Device 134 processed disconnects the second controlling switch Q3, so as to cut off power supply circuit, protects electric tool 100.
Fig. 3 show the structural representation of the voltage collection circuit in Fig. 2.Fig. 3 is refer to, voltage collection circuit 131 wraps
The one end for including sampling capacitance C1 and voltage sample resistance R2, sampling capacitance C1 is connected with the positive output end b+ of battery core pack 121, should
Positive output end b+ is the positive pole of battery core pack 121, and the end that sampling capacitance C1 is connected with the positive pole of battery core pack 121 is also made
It is electrically connected to for voltage using point on MCU controllers 134, in addition, voltage sample resistance R2's is not connected with sampling capacitance C1
One end is grounded, so as to which MCU controllers 134 can collect battery core pack 121 by sampling capacitance C1 and voltage sample resistance R2
Battery core voltage.
Fig. 4 show the structural representation of the second embodiment of the power supply circuit in the electric tool of the present invention, shown in Fig. 5
For the structural representation of the compensation drive circuit in Fig. 4.Fig. 4 and Fig. 5 are refer to, the present embodiment and first is only introduced below and implements
Difference part in example, is repeated no more as same section.In the present embodiment, compensation drive circuit 133 can not also pass through
MCU controllers 134 compensate the opening and closing of controlling switch to control, specifically, compensation drive circuit 133 includes a control electric capacity
C2, the control electric capacity C2 and electrical appliance 111 simultaneously connect, and control electric capacity C2 one end is connected with the positive input terminal m+ of electrical appliance 111, separately
One end is connected with the negative input end m- of electrical appliance 111, and one end that control electric capacity C2 is connected with the negative input end m- of electrical appliance 111 is also
Electrically connected as control signal input point with compensating controlling switch Q2 control terminal P6 compositions, so, as the first controlling switch Q1
During disconnection, now because flowing through the electric current of electrical appliance 111 can not undergo mutation, therefore the electric current for flowing through electrical appliance 111 will be to
Electric capacity C2 chargings are controlled, the control electric capacity C2 being electrically charged can trigger compensation controlling switch Q2 and open, so as to control electric capacity C2 quilts
The compensation controlling switch Q2 short circuits having already turned on, current loop finally is formed between electrical appliance 111 and control electric capacity C2, can
Maintain the normal operating conditions of electrical appliance 111.
The whole work process and principle of power supply circuit of the invention introduced below：Here with the specified electricity of electrical appliance 111
Press as 18V, and the battery core voltage of the battery bag 120 accessed is 36V, compensation drive circuit 133 is controlled by MCU controllers 134
It is made as example.In a cycle, first, the battery core voltage of battery bag 120, MCU controllers are gathered by voltage collection circuit 131
134 are adjusted according to the ratio between the rated voltage 18V and voltage collection circuit 131 of electrical appliance 111 battery core voltage 36V gathered for 0.5
First controlling switch Q1 and compensation controlling switch Q2 dutycycle are 0.5, be that is to say, within preceding 0.5 cycle, MCU controllers 134
First control signal is sent to the first controlling switch Q1 by the first drive circuit 132, and within rear 0.5 cycle, MCU controls
Device 134 sends the second control signal to compensation controlling switch Q2, is the first controlling switch within preceding 0.5 cycle more specifically
The high level during signal that Q1 control terminal P3 is received, and the signal that the control terminal P6 for now compensating controlling switch Q2 is received is low
Level, connected so as to the first controlling switch Q1 two switch terminals P1, P2, compensation controlling switch Q2 two switch terminals P4, P5
Disconnect, the first controlling switch Q1 is opened, and compensation controlling switch Q2 disconnects, and electrical appliance 111 being capable of normal work；Then, current 0.5
When the individual cycle meets duration, signal that the first controlling switch Q1 control terminal P3 is received is low level, the first controlling switch Q1
Disconnecting, 36v battery bags 120 are stopped, and because the inductance of electric current acts on, thus the electric current for flowing through electrical appliance 111 can not be sent out
Raw mutation, and it is high level at the same time to compensate the signal that controlling switch Q2 is received, compensation controlling switch Q2 is opened, so as to flow
Compensation controlling switch Q2 will be flowed through through the electric current that can not be mutated on electrical appliance 111, forms current loop, thus electrical appliance 111
It can still work, be similar to be supplied by 18V battery bags 120 so that electrical appliance 111 shows in the whole work period
The situation of electricity.
To sum up, in power supply circuit of the invention, the battery bag with higher battery core voltage can be allowd to be used in low
The electrical appliance of rated voltage, so that a battery bag can apply at least two voltage platforms, add the logical of battery bag
The property used.On the other hand, therefore the battery bag with higher battery core voltage, will have higher battery core also with higher capacitance
The battery bag of voltage is used in the electrical appliance of low rated voltage, can effectively improve the working time of electric tool, moreover, with
Family need not buy reserve battery bag in addition, significantly reduce job costs.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way for above-described embodiment, all to be obtained by the way of equivalent substitution or equivalent transformation
Technical scheme, all fall within protection scope of the present invention.
Claims (9)
1. a kind of power supply circuit, including：Battery core pack, electrical appliance and control circuit, wherein, the battery core pack is by multiple electricity
Core unit is formed, and the electrical appliance is formed with the battery core pack and electrically connected；The control circuit includes：MCU controllers, voltage
Acquisition Circuit, the voltage collection circuit are at least partly connected electrically between the battery core pack and the MCU controllers, its energy
Gather the battery core voltage of the battery core pack and feed back to the MCU controllers；Characterized in that, the control circuit is also wrapped
Include：First controlling switch, compensation controlling switch, first controlling switch, compensation controlling switch include two switch terminals and
One can control two switch terminals connections or the control terminal disconnected, the power supply circuit also to include：Described is driven respectively
The first drive circuit and compensation drive circuit of one controlling switch, the control terminal of compensation controlling switch；First controlling switch
Two switch terminals between circuit be connected on the electrical appliance and the battery core pack and form in the circuit electrically connected, the benefit
The circuit repaid between two switch terminals of controlling switch is in parallel with electrical appliance composition；First drive circuit respectively with institute
The control terminal electrical connection of MCU controllers and first controlling switch is stated, the MCU controllers are according to the voltage collection circuit
The ratio between the battery core voltage that is gathered and rated voltage of the electrical appliance are by first drive circuit to described first
The control terminal of controlling switch sends the first control signal, and the compensation drive circuit is electrically connected to the control of the compensation controlling switch
End processed, and the compensation drive circuit sends compensation described in the Separation control of first control signal in the MCU controllers
Controlling switch turns on；The control electric capacity being connected in parallel with the electrical appliance, institute are comprised at least in the compensation drive circuit
Control electric capacity is stated with one end that the electrical appliance negative pole is connected as control signal input point and the compensation controlling switch
Control terminal forms electrical connection.
2. power supply circuit according to claim 1, it is characterised in that the MCU controllers and the compensation drive circuit
Electrical connection, the MCU controllers send the second control by the control terminal of the compensation drive circuit to the compensation controlling switch
Signal processed, the MCU controllers send second control signal at the interval for sending first control signal.
3. according to the power supply circuit described in claim 1 to 2 any one, it is characterised in that the control circuit also includes：String
The electrical appliance and the battery core pack is associated in form sampling resistor in the circuit electrically connected, there is two switch terminals and one
Second drive circuit of the second controlling switch of control terminal and the control terminal of driving second controlling switch；The sampling electricity
The high-pressure side of resistance is electrically connected to the MCU controllers；Circuit between two switch terminals of second controlling switch is connected on
The electrical appliance is formed in the circuit electrically connected with the battery core pack；The MCU controllers and the second drive circuit structure
Into electrical connection, MCU controllers control the two of second controlling switch when the electric current on the sampling resistor is less than preset value
Individual switch terminals connection, and second controlling switch is controlled when the electric current on the sampling resistor is more than or equal to the preset value
Two switch terminals shut-off.
4. power supply circuit according to claim 3, it is characterised in that first controlling switch, the second controlling switch with
And compensation controlling switch is switch mosfet.
5. according to the power supply circuit described in claim 1 to 2 any one, it is characterised in that the voltage collection circuit is at least
Including：One sampling capacitance, one end of the sampling capacitance are connected with the positive pole of the battery core pack, and the end is as voltage
Sampled point is electrically connected to the MCU controllers.
6. a kind of electric tool, including：One tool host and at least one battery bag, it is characterised in that the instrument master
Machine, which includes the electrical appliance described in any one, the battery bag in claim 1 to 5, to be included：It is any one in claim 1 to 5
Battery core pack described in, the battery core pack of the different battery bags have different number of battery core unit；The battery bag
When it is its power supply to be attached to the tool host, the entirety that the battery bag and the tool host are formed at least forms power
Profit requires the power supply circuit described in 1 to 5 any one.
7. electric tool according to claim 6, it is characterised in that the control circuit is arranged on the tool host
In.
8. electric tool according to claim 6, it is characterised in that the control circuit is arranged in the battery bag.
9. according to the electric tool described in claim 6 to 8 any one, it is characterised in that the electrical appliance is motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410305343.9A CN105337319B (en) | 2014-06-30 | 2014-06-30 | Electric tool and its power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410305343.9A CN105337319B (en) | 2014-06-30 | 2014-06-30 | Electric tool and its power supply circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105337319A CN105337319A (en) | 2016-02-17 |
| CN105337319B true CN105337319B (en) | 2018-02-23 |
Family
ID=55287690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410305343.9A Active CN105337319B (en) | 2014-06-30 | 2014-06-30 | Electric tool and its power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105337319B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180926A (en) * | 2017-05-10 | 2017-09-19 | 浙江亚特电器有限公司 | A kind of battery bag and electric tool |
| CN110401385B (en) * | 2018-04-18 | 2022-01-18 | 苏州宝时得电动工具有限公司 | Electric tool and electric tool system |
| CN112383036A (en) * | 2020-11-25 | 2021-02-19 | 云南电网有限责任公司文山供电局 | Active alternating current fleeing-in protection device of direct current ring network system and working method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101467327B (en) * | 2006-06-15 | 2012-01-25 | 三美电机株式会社 | Charging/discharging circuit for secondary battery, and battery pack |
| CN102570947A (en) * | 2011-12-05 | 2012-07-11 | 江苏浩峰汽车附件有限公司 | Switch control speed regulating circuit of direct current motor with braking function |
| CN101154820B (en) * | 2006-09-19 | 2013-03-27 | 日立工机株式会社 | Adaptor, assembly of battery pack and adaptor, and electric tool with the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101326703A (en) * | 2005-11-23 | 2008-12-17 | 麦太保有限公司 | Accumulator for being connected with electric apparatus |
| JP5962983B2 (en) * | 2012-08-30 | 2016-08-03 | 日立工機株式会社 | Electric tool |
| CN103166290A (en) * | 2013-03-26 | 2013-06-19 | 欣旺达电子股份有限公司 | Control and protection circuit for single-lithium battery electric tool and detection and control method for control and protection circuit |
-
2014
- 2014-06-30 CN CN201410305343.9A patent/CN105337319B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101467327B (en) * | 2006-06-15 | 2012-01-25 | 三美电机株式会社 | Charging/discharging circuit for secondary battery, and battery pack |
| CN101154820B (en) * | 2006-09-19 | 2013-03-27 | 日立工机株式会社 | Adaptor, assembly of battery pack and adaptor, and electric tool with the same |
| CN102570947A (en) * | 2011-12-05 | 2012-07-11 | 江苏浩峰汽车附件有限公司 | Switch control speed regulating circuit of direct current motor with braking function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105337319A (en) | 2016-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105337319B (en) | Electric tool and its power supply circuit | |
| CN110071562A (en) | A kind of sending side switching mixed topology constant current constant voltage induction type wireless charging method and system | |
| CN103124089A (en) | Battery adapter | |
| DE102011076708A1 (en) | Radio unit with a supply circuit for power supply and method for operating such a radio unit | |
| CN102497197A (en) | Isolated bidirectional digital input output circuit | |
| CN107089158B (en) | Lithium battery vehicle, which fills, to be set | |
| CN207199530U (en) | Relay decompression keeps control circuit | |
| CN205489547U (en) | Alternating current -direct current adaptive control circuit of blend switch | |
| CN204374376U (en) | The proving installation of branch crushing machine control circuit | |
| CN202340215U (en) | Driving circuit for remotely controlling output of direct instruction | |
| CN203574370U (en) | Power supply filtering/energy storage circuit | |
| CN208386453U (en) | The control device of high-voltage circuitbreaker switched capacitor network electric operating mechanism | |
| CN206135717U (en) | Protect high -power system device's voltage output controlling means | |
| CN104319991B (en) | A kind of automobile power source based on TLE7368 3E direct current transducers | |
| CN208257701U (en) | A kind of generator two-way voltage adjusting control circuit | |
| CN201194015Y (en) | Current sampling circuit using constantan wire | |
| CN102109390B (en) | Temperature recognition circuit for battery protective plate | |
| CN204406069U (en) | Industrial integrated digital low tension switch | |
| CN205141669U (en) | Distribution network cascade compensation circuit and system | |
| CN204808190U (en) | Link termination | |
| CN211742976U (en) | Drive control circuit and circuit breaker | |
| CN212935898U (en) | Hardware circuit for realizing power line communication and communication system | |
| CN206294103U (en) | A kind of drive circuit of motor soft starter | |
| CN208386456U (en) | A kind of DC electric machine drive apparatus easy to use | |
| CN202374175U (en) | Positive-and-negative dual-power-supply control device and Hall current sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: 211106, No. 159, general road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |
|
| CP03 | Change of name, title or address |