CN106514569A - Voltage conversion adapting device used for electric tool and voltage conversion method of voltage conversion adapting device - Google Patents
Voltage conversion adapting device used for electric tool and voltage conversion method of voltage conversion adapting device Download PDFInfo
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- CN106514569A CN106514569A CN201610954938.6A CN201610954938A CN106514569A CN 106514569 A CN106514569 A CN 106514569A CN 201610954938 A CN201610954938 A CN 201610954938A CN 106514569 A CN106514569 A CN 106514569A
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- voltage
- electric tool
- voltage conversion
- module
- conversion module
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
Abstract
The invention relates to the field of electric tools, in particular to a voltage conversion adapting device used for an electric tool and a voltage conversion method of the voltage conversion adapting device. The voltage conversion adapting device comprises a first voltage conversion module, a starting circuit and a start and stop surveillance module, wherein the input end of the first voltage conversion module is connected with a battery pack connector, the output end of the first voltage conversion module is connected with a pole piece of the electric tool, and the first voltage conversion module is used for converting voltage output by a battery pack into voltage required for working of the electric tool; the starting circuit comprises a second voltage conversion module, the input end of the second voltage conversion module is connected with a battery pack connector, the output end of the second voltage conversion module is connected with a pole piece of the electric tool, and the second voltage conversion module is used for providing starting voltage for the electric tool; and the start and stop surveillance module is connected with th output end of the second voltage conversion module and used for judging whether the electric tool is started or not according to an electric signal at the output end of the second voltage conversion module. By adoption of the voltage conversion adapting device used for the electric tool and the voltage conversion method of the voltage conversion adapting device, the applicability of the voltage conversion adapting device is made wider.
Description
Technical field
The present invention relates to field of power tools, and in particular to a kind of voltage transformation switching device for electric tool and its
Voltage transformation method.
Background technology
For battery powered electric tool, due to the charge and discharge protecting standard that each producer, each brand be not unified,
It is also different in structure.Meanwhile, for different utilization places and different business strategies, same producer there is also difference
The battery bag of voltage and instrument；Such result is exactly that market is full of different structure, the battery bag that interface is different, voltage is different
And charger.
At present, increasing electric tool turns to more portable, more efficient battery and powers；And battery bag is easy
Consumption product, the battery bag for causing electric tool follow-up are changed and bring many inconvenience：Using the battery bag of same brand, price
It is expensive；It is exactly do not have follow-up battery bag replaceable.Plus the electric tool for possessing different brands simultaneously, battery bag can not
Mutually use, reduce the service efficiency of battery bag；For entire society, the battery bag of different voltages also results in battery
Bag species is various, mutually uncurrent waste.
The patent documentation of Publication No. CN103856048A discloses a kind of DC/DC transducers for electric tool, tool
Body discloses the DC/DC transducers also includes processing module and output voltage control module, and the processing module is defeated with described
Go out voltage control module to be connected, the output voltage control module is connected with the DC/DC modules, the processing module passes through institute
The output voltage that output voltage control module controls the DC/DC modules is stated, the output voltage required for thus obtaining, from
And the voltage of battery bag output is adapted with the running voltage needed for the electric tool.
Further, also disclose in the document：The DC/DC transducers also include tool switch detection module.The instrument
Whether switch detection module is connected with processing module and electric tool, for judging electric tool in work.From the attached of the document
Tool switch detection module disclosed in figure understands that the tool switch detection module can be only used for detecting that direct current electric power tools are
It is no and AC electrical instrument to be detected whether in work in work, therefore, its suitability is limited to.
The content of the invention
The technical problem to be solved in the present invention is that the electric pressure converter in prior art for electric tool cannot be detected
Whether AC electrical instrument causes which using limited in work, so as to provide a kind of voltage transformation switching dress for electric tool
Put and its voltage transformation method.
A kind of voltage transformation switching device for electric tool is embodiments provided, including：First voltage becomes
Mold changing block, input is connected with battery bag connector, and outfan is connected with the pole piece of electric tool, for by the battery
Voltage of the voltage conversion of bag output for needed for electric tool work；Start-up circuit, it is including second voltage conversion module, defeated
Enter end to be connected with the battery bag connector, outfan is connected with the pole piece of electric tool, for the electric tool
There is provided and start voltage；Start and stop detecting module, is connected with the outfan of the second voltage conversion module, for according to described
The signal of telecommunication of the outfan of two voltage transformation modules judges whether the electric tool starts, and wherein, opens in the electric tool
In the case of dynamic, the first voltage conversion module starts and exports the voltage needed for the electric tool work.
Further, the electric tool includes：Panel and motor, the panel are opened for controlling the motor
Dynamic, wherein, the first voltage conversion module for providing the voltage needed for its work to the motor；The second voltage becomes
Mold changing block is for the panel offer startup voltage.
Further, power of the power of the second voltage conversion module less than the first voltage conversion module.
Further, the start-up circuit also includes：Diode, is connected on the output of the second voltage conversion module
End, for controlling the unidirectional output of the second voltage conversion module.
Further, the first voltage conversion module be DC/DC modules, the input of the DC/DC modules homopolarity with
Electricity direct-connected by through swtich between outfan, needed for the output voltage of the battery bag works in the electric tool
In the case of in the range of pressure, the through swtich closure is controlled.
Further, also include：Controller, is connected with the first voltage conversion module, for electric to described first
Pressure conversion module is controlled；Power module, is respectively connected with the controller and the start and stop detecting module, for institute
State controller to power, wherein, the start and stop detecting module controls the power module in the case of electric tool startup
Start.
Further, also include：Signal imitation module, with the controller, the power module and the panel point
It is not connected, for being communicated with obtaining the information of voltage needed for the electric tool work with the panel.
Further, the controller is additionally operable to detect the information of voltage of battery bag, and in the output electricity of the battery bag
In the case that pressure is in the voltage range needed for electric tool work, the through swtich closure is controlled.
Further, the controller includes：Voltage detection module, for detecting the information of voltage of the battery bag；Electricity
Stream detection module, for detecting the current information of the battery bag；Temperature detecting module, for detecting the temperature of the battery bag
Information；And control module, it is respectively connected with the voltage detection module, current detection module and temperature detecting module.
Further, also include：Alarm module, is connected with the controller, for exporting prompt messages.
The embodiment of the present invention additionally provides a kind of voltage transformation method for electric tool, including：Detection electric tool
Whether start；In the case where the electric tool starts, the information of voltage of battery bag is detected；In the output electricity of the battery bag
In the case that pressure is in the voltage range needed for electric tool work, control through swtich closure does not start first electric
Pressure conversion module；The situation outside voltage range needed for the output voltage of the battery bag works in the electric tool
Under, start the first voltage conversion module, the electric tool is in the output voltage for controlling first voltage conversion module
In voltage range needed for work.
Further, after electric tool startup, methods described also includes：Judge the output electricity of the battery bag
Whether pressure is less than default protection voltage；In the case where the output voltage of the battery bag is less than default protection voltage, institute is controlled
Through swtich disconnection is stated, or stops the first voltage conversion module.
According to embodiments of the present invention, due to by using start-up circuit and start and stop detecting module whether detecting electric tool
Start, wherein, start-up circuit includes second voltage conversion module, start voltage for providing to electric tool, go for
AC electrical instrument or direct current electric power tools so that the suitability of the voltage transformation switching device of the present embodiment is wide.
Description of the drawings
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete
Needed for embodiment or description of the prior art, accompanying drawing to be used is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is that specific example in the embodiment of the present invention 1 for the voltage transformation switching device of electric tool is shown
It is intended to；
Fig. 2 is another specific example of the voltage transformation switching device in the embodiment of the present invention 1 for electric tool
Schematic diagram；
Fig. 3 is the boosting curve synoptic diagram of first voltage conversion module in the embodiment of the present invention 1；
Fig. 4 is the drawdown curve schematic diagram of first voltage conversion module in the embodiment of the present invention 1；
Fig. 5 is the flow chart of a specific example of voltage transformation method in the embodiment of the present invention 2.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described enforcement
Example is a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill
The every other embodiment obtained under the premise of creative work is not made by personnel, belongs to the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation of the instruction such as " level ", " interior ", " outward " or position relationship be based on orientation shown in the drawings or position relationship, merely to
Be easy to description the present invention and simplify description, rather than indicate or imply indication device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be with
It is the connection of two element internals, can is wireless connection, or wired connection.For one of ordinary skill in the art
For, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.
As long as additionally, the non-structure each other of technical characteristic involved in invention described below different embodiments
Can just be combined with each other into conflict.
Embodiment 1
The present embodiment provides a kind of voltage transformation switching device for electric tool, and the device can cause same money electricity
Chi Bao is used for different voltages（Including exchange or direct current）The electric tool of demand.
As shown in figure 1, the voltage transformation switching device 1 includes：First voltage conversion module 11, start-up circuit 12 and start and stop
Detecting module 13.
The input of first voltage conversion module 11 is connected with 2 connector of battery bag, the pole of outfan and electric tool 3
Piece is connected, the voltage for the voltage conversion that exports battery bag 2 for needed for electric tool 3 works.
First voltage conversion module 11 can be DC/DC（DC-DC）Module, or DC/AC（Direct current is delivered
Stream）Module, can be boost module, or voltage reduction module.
Start-up circuit 12 includes second voltage conversion module 121, and input is connected with 2 connector of battery bag, outfan
It is connected with the pole piece of electric tool 3, starts voltage for providing to electric tool 3.In the present embodiment, start electricity by increasing
Road 12, starts voltage for providing to electric tool 3, specifically by second voltage conversion module 121 by the output voltage of battery bag 2
The startup voltage output of electric tool 3 is converted into, the startup voltage can be used for the panel for starting electric tool 3.When electronic
When the switch S1 of instrument 3 is closed, loop between 2 start-up circuit 12 of battery bag and electric tool 3, is formed, produce electric current.
Start and stop detecting module 13 is connected with the outfan of second voltage conversion module 121, for being become according to second voltage
The signal of telecommunication of the outfan of mold changing block 121 judges whether electric tool 3 starts, wherein, in the case where electric tool 3 starts,
First voltage conversion module 11 starts and exports the voltage needed for electric tool 3 works.Wherein, the signal of telecommunication can reflect startup electricity
The change of the output voltage on road, electric current, start and stop detecting module 13 can be according to holding wire detecting start-up circuit 12 voltage,
Curent change, so that judge the startup of electric tool 3.
When the switch S1 of electric tool 3 is closed, 121 output voltage of second voltage conversion module；During disconnection, second voltage
Conversion module 121 stops output voltage.Based on the principle, start and stop detecting module 13 is by detecting second voltage conversion module 121
The signal of telecommunication of outfan may determine that whether the switch of electric tool closes, and that is to say whether electric tool starts.Only in electricity
In the case that power driven tools 3 start, first voltage conversion module 11 starts and exports the voltage needed for electric tool 3 works.If
It is not actuated, or stop, then stop the output of first voltage conversion module 11, to reduce the electric energy of first voltage conversion module 11
Consume, improve the use duration of battery bag.
According to embodiments of the present invention, due to by using start-up circuit and start and stop detecting module whether detecting electric tool
Start, wherein, start-up circuit includes second voltage conversion module, start voltage for providing to electric tool, go for
AC electrical instrument or direct current electric power tools so that the suitability of the voltage transformation switching device of the present embodiment is wide.
As shown in Fig. 2 electric tool 3 includes：Panel PCB and motor M, panel PCB start for controlled motor M,
Used as a kind of preferred implementation, first voltage conversion module 11 for providing the voltage needed for its work to motor M；Second is electric
Pressure conversion module 121 starts voltage for providing to panel PCB.
When S1 closures are switched, second voltage conversion module is provided to the panel of electric tool and starts voltage, the control
Plate startup work, connects circuit with motor（Controlling switch S3 is connected）.After first voltage conversion module starts, to motor
Voltage needed for output services.Preferably, the power of the second voltage conversion module of the present embodiment becomes mold changing less than first voltage
The power of block.
As shown in Fig. 2 the start-up circuit 12 of the present embodiment also includes：Diode 122, is connected on second voltage conversion module
121 outfan, for controlling the unidirectional output of second voltage conversion module 121.
The start-up circuit of the present embodiment includes at least one low power voltage transformation module and a diode；For
Startup voltage is provided for electric tool, and its output voltage meets in the scope needed for electric tool；The voltage transformation module can
Being booster circuit, or reduction voltage circuit；Diode is to ensure that the unidirectional output of the low power voltage conversion circuit.
Used as a kind of optional embodiment, first voltage conversion module 11 is DC/DC modules, and electric tool 3 is unidirectional current
Power driven tools, it is direct-connected by through swtich S2 between the input and outfan of DC/DC module homopolarities.In the output electricity of battery bag 2
Pressure work in electric tool 3 needed for voltage range in the case of, that is to say that the output voltage of battery bag 2 can be directly to
Electric tool 3 is used, and need not carry out voltage transformation, therefore, control through swtich S2 closures, by battery bag 2 and electronic work
Tool 3 is directly connected, so as to reduce the electric energy of consumption when first voltage transform block 11 carries out voltage transformation, prolongation battery bag 2
Using duration.
Through swtich S2 can be the electrical switches such as relay, metal-oxide-semiconductor, IGBT, audion, solid-state relay, by control
Device processed 14 carries out break-make control.
In the case that the output voltage of battery bag 2 works outside required voltage range in electric tool 3, disconnect straight-through
Switch S2, carries out DC boosting or decompression transformation by first voltage conversion module 11, makes the defeated of first voltage conversion module 11
In the voltage range gone out needed for voltage works in electric tool 3.
As shown in Figures 3 and 4, the voltage range needed for electric tool 3 works is [U0, U1], and wherein, Ub is defeated for battery bag
Go out voltage, output voltages of the Uout for first voltage conversion module 11, Up are default protection voltage.When the output voltage of battery bag
When Ub is less than U0, then controls first voltage conversion module 11 and which is boosted so that the output of first voltage conversion module 11
Voltage Uout is interior in [U0, U1], as shown in Figure 3；When the output voltage Ub of battery bag is more than U1, then controls first voltage and become
Mold changing block 11 carries out blood pressure lowering to which so that the output voltage Uout of first voltage conversion module 11 is interior in [U0, U1], such as Fig. 4
It is shown.
As shown in Fig. 2 the voltage transformation switching device of the present embodiment also includes：Controller 14, is become with first voltage and is changed the mold
Block 11 is connected, for being controlled to first voltage conversion module 11；Power module 15, with controller 14 and start and stop detecting mould
Block 13 is respectively connected with, and for powering to controller 14, wherein, start and stop detecting module 13 is in the case of the startup of electric tool 3
Control power module 15 starts.Power module 15 starts backward controller 14 and provides power supply so as to start work.That is to say in electricity
Before power driven tools 3 start, first voltage conversion module 11, power module 15, controller 14 etc. are in inactive state, so as to
Reducing energy consumption, extends the operating time of battery bag 2.
In the present embodiment, start and stop detecting module 13 is also connected with controller 14, in order to be detectd according to start and stop detecting module 13
The startup situation of the electric tool 3 for measuring is controlled to first voltage conversion module 11, mainly controls first voltage here
The start and stop of conversion module 11.
Preferably, as shown in Fig. 2 the voltage transformation switching device of the present embodiment also includes：Signal imitation module 16, with control
The panel PCB of device processed 14, power module 15 and electric tool 3 is respectively connected with, for being communicated with obtaining with panel PCB
Power taking power driven tools 3 work needed for information of voltage.
Power module 15 is powered to signal imitation module 16, and signal imitation module 16 can then realize controller 14 with control
Data communication between plate PCB, the information of voltage needed for mainly work electric tool 3 are transferred to controller 14, in order to control
Device processed 14 is controlled to the output voltage of voltage transformation switching device.
Preferably, controller 14 is additionally operable to detect the information of voltage of battery bag 2, and the output voltage in battery bag 2 is in
Electric tool 3 work needed for voltage range in the case of, control through swtich S2 closure.
The workflow of the voltage transformation switching device shown in Fig. 2 is specific as follows：
Closure switch S1, start electric tool 3, by the start-up circuit 12 in parallel with first voltage conversion module 11 and
Start and stop detecting module 13 detects the startup of electric tool 3, and then start and stop detecting module 13 controls the startup of power module 15；Profit
With the startup of power module 15, power supply is provided to controller 14 and signal imitation module 16 and be allowed to start working；Controller 14
After work, by the output voltage information of the battery bag 2 that itself is detected, judge whether to need to start first voltage change mold changing
Block 11；When 2 output voltage of battery bag is normal, and 2 output voltage Ub of battery bag predeterminated voltage U0～U1 models in the controller 14
(U0 in enclosing<=Ub<=U1), controller 14 then controls the direct circuit switch S2 closure in parallel with first voltage conversion module 11,
The output of battery bag 2 is directly connected with electric tool 3；Electric tool 3 is started working；When 2 output voltage of battery bag is normal,
And the output voltage Ub of battery bag 2 (Ub outside predeterminated voltage U0～U1 scopes in controller 14>U1 or Ub<U0), controller 14
Then control first voltage conversion module 11 to start, it is ensured that the voltage obtained by electric tool 3 meets the requirements (U0<=Uout<=U1).
In above-mentioned middle controller 14, predeterminated voltage U0～U1 scopes that is to say the electric tool 3 that controller 14 is got from electric tool 3
Voltage range needed for work.
In addition, presetting protection voltage Up when the output voltage of battery bag 2 is less than in controller 14, controller then controls S2 and breaks
Open and first voltage conversion module 11 is not exported, electric tool cannot start work.In in working order, if start and stop detecting mould
Block 13 monitors that electric tool 3 is shut down, and controller 14 then controls S2 disconnections and first voltage conversion module 11 is not exported, electronic work
Tool 3 is shut down；It is then shut off power module 15, power cut-off.
In the present embodiment, controller 14 can be for control unit（MCU）, 2 voltage of battery bag, electric current, temperature can be carried out
The collection and process of the information such as degree；And can be to power module 15, first voltage conversion module 11 and signal imitation module 16
It is controlled.Specifically, controller 14 includes：Voltage detection module, for detecting the information of voltage of battery bag；Current detecting mould
Block, for detecting the current information of battery bag；Temperature detecting module, for detecting the temperature information of battery bag；And control mould
Block, is respectively connected with voltage detection module, current detection module and temperature detecting module.
Control module primarily serves control action, control battery bag voltage detecting, current detecting and the circuit with battery bag
Connection, for protecting battery bag 2, be also prevented from battery bag 2 voltage or electric current it is excessive to electric tool 3 cause damage.
In the present embodiment, controller 14 can also be judged by the running voltage of detecting electric tool 3, operating current
Electric tool 3 is in unloaded, middle load, heavy duty, and controls first voltage conversion module voltage output, so as to reach energy-conservation and work
The balance of efficiency.
In the present embodiment, temperature control modules, the temperature control modules and the present embodiment in the battery bag, is additionally provided with
Voltage transformation switching device controller be connected.
In the embodiment of the present invention, after controller startup work, can be believed by the battery bag that battery bag connection sheet is transmitted
Whether breath, and the battery bag job information of itself detecting, detecting battery bag state are normal.Specifically, electric tool is in work
During work, controller is worked always, the information of the battery bag work state information detected by controller and battery bag itself
Contrast, if the information of contrast is within the normal range, battery bag is in normal operating conditions；If the information of contrast is not
Within normal range, then to detect battery bag state abnormal for battery bag protection module.Wherein, battery bag information includes electricity
The type of Chi Bao, voltage, temperature and current information；The battery bag job information of the battery bag protection module detecting includes battery
Bag voltage in the course of the work, electric current and temperature information.
When the controller detects that battery bag state is abnormal, controller targetedly starts in real time according to battery Packet type
Protection, and protection information is converted into into the protection information that electric tool can be parsed and be received by signal imitation module, start electricity
The defencive function of power driven tools itself, electric tool are shut down, power cut-off.After the electric tool startup defencive function of itself, electricity
Power driven tools are shut down, and so will not electric tool be caused to damage, effectively play the effect of protection electric tool.
Preferably, the voltage transformation switching device of the present embodiment, also includes：Alarm module, is connected with controller, is used for
Output prompt messages.The alarm module includes warning lamp（Such as LED）And/or buzzer.When electric tool or battery bag
Working condition is in guard mode, is reported to the police by buzzer buzzing and warning lamp turn colors or flicker warning.
During electric tool is in running order, if start and stop detecting module monitors that electric tool is shut down, controller is utilized
Signal imitation module sends abnormal signal imitation, then controls alarm module and sends alarm, is then turned off control loop,
Cut-out battery bag is connected with the circuit of electric tool, and closes power module, power cut-off.
Whether the working condition that above-mentioned alarm module is capable of real-time reminding user of service electric tool and battery bag is normal.Its
In, start and stop detecting module detecting be electric tool start and stop information, controller then mainly monitor battery bag working condition, by
Both coordinate detecting electric tools and battery bag, it is possible to determine that be the problem of battery bag or electric tool, can allow user
Reported to the police by buzzer buzzing and LED turn colors or flicker warning message judge to be orderly closedown or abnormal stop
Machine.
The voltage transformation switching device of the present embodiment mainly includes shell, instrument connection sheet, battery bag in structure design
Connection sheet and changeover mechanism, wherein, the changeover mechanism is arranged at the enclosure, and the instrument connection sheet is arranged at described
Case top, is matched with the pole piece of electric tool, and the battery bag connection sheet is arranged at the housing bottom, with battery bag
Pole piece matches, and one end Jing changeover mechanisms of the instrument connection sheet are connected with the battery bag connection sheet, the shell bottom
Portion and the battery bag clamping, are connected with the cover top portion clamping at the top of the electric tool.
Voltage transformation switching device in the present embodiment in its structure design can be：The voltage transformation switching device bottom
Portion is connected with the top of battery bag, and top is connected with the bottom of electric tool；The voltage transformation switching device includes shell, work
Tool connection sheet, battery bag connection sheet and changeover mechanism, wherein, it is above-mentioned described in first voltage conversion module, start-up circuit, open
Stop detecting module, controller, power module, signal imitation module etc. to be arranged in changeover mechanism, the changeover mechanism is arranged
In the enclosure, the instrument connection sheet is arranged at the case top, is matched with the pole piece of electric tool, the electricity
Pond bag connection sheet is arranged at the housing bottom, matches with the pole piece of battery bag, and one end Jing of the instrument connection sheet turns
Connection mechanism is connected with the battery bag connection sheet, the outer casing bottom and the battery bag clamping, at the top of the electric tool with
The cover top portion clamping is connected.
In the present embodiment, battery bag two bottom sides are provided with chute, and the two bottom sides of correspondence shell are provided with card, card
Insert in chute, realize that shell and the clamping of battery bag are installed, wherein, during shell with battery bag clamping installation, electricity
Pond bag connection sheet is matched with the pole piece at the top of battery bag, realizes electrical connection, by the both positive and negative polarity of battery bag and battery bag detection signal
It is transmitted in changeover mechanism, is processed using changeover mechanism.Cover top portion is provided with upper hopper chute and instrument connection sheet, electric tool
Bottom is provided with lower card and pole piece, and lower card is inserted in upper hopper chute, realizes the connection of shell and electric tool, while instrument connection
Piece is matched with the pole piece of electric tool bottom, realizes electrical connection, by the both positive and negative polarity of electric tool and switching on and shutting down signal transmission in turning
In connection mechanism, processed using changeover mechanism.In the present embodiment, shell is used for connecting electric tool and battery bag, plays
The effect of being connected, battery bag connection sheet and electric tool connection sheet play connection battery bag and electric tool electric energy and information
Information monitoring and process are played a part of in effect, changeover mechanism.
In the present embodiment, when actually used, the position of instrument connection sheet and battery bag connection sheet, according to different manufacturers
And unlike signal battery bag or electric tool assembled, it is ensured that instrument connection sheet can be electrically connected with the pole piece of electric tool,
Battery bag connection sheet can be electrically connected with the pole piece of battery bag, it is ensured that electric tool Jing switching devices are electrically connected with battery bag.
Based on above description, the embodiment of the present invention has following advantages compared with prior art：
1st, in the present invention by the setting of voltage transformation switching device, using the setting of switching device, different brands or
The electric tool of model can be used for matching different battery bags, reduces the waste of resource, reduces the cost of user；
2nd, electric tool and the battery bag of cage connection distinct interface is utilized in the embodiment of the present invention, is connected using battery bag
Piece matches the pole piece of respective battery bag, matches the pole piece of electric tool using instrument connection sheet, recycles changeover mechanism to play electricity
Gas connect and protective effect, realize electric tool matching different brands or model battery bag, with conventional electric tool can only
Battery bag with same brand or same model is compared, profit between same electric tool and different brands or different model battery bag
Can be connected with switching device and be used, not only reduce the cost of user, while also reducing the waste of resource, be easy to use
Person manages.
Embodiment 2
Originally apply example and a kind of voltage transformation method for electric tool is provided, the method can be used for the embodiment of the present invention 1
Described voltage transformation switching device, below components and parts involved in method description with the voltage transformation described in embodiment 1
The components and parts being previously mentioned in switching device are identical.As shown in figure 5, the method includes：
Whether step S501, detection electric tool start；
Step S502, in the case where electric tool starts, detects the information of voltage of battery bag；
Step S503, in the case where the output voltage of battery bag is in the voltage range needed for electric tool work,
Control through swtich closure, does not start first voltage conversion module；
Step S504, in the case where the output voltage of battery bag is outside the voltage range needed for electric tool work,
Start first voltage conversion module, the output voltage of first voltage conversion module is controlled in the electricity needed for electric tool work
In the range of pressure.
Specifically, closure switch S1, start electric tool 3, by the startup electricity in parallel with first voltage conversion module 11
Road 12 and start and stop detecting module 13 detect the startup of electric tool 3, then the control of start and stop detecting module 13 power module 15
Startup；Using the startup of power module 15, power supply is provided to controller 14 and signal imitation module 16 and be allowed to start working；
After controller 14 works, by the output voltage information of the battery bag 2 that itself is detected, judge whether to need startup first electric
Pressure conversion module 11；When 2 output voltage of battery bag is normal, and 2 output voltage Ub of battery bag predeterminated voltages in the controller 14
(U0 in the range of U0～U1<=Ub<=U1), controller 14 then controls the direct circuit switch in parallel with first voltage conversion module 11
S2 is closed, and the output of battery bag 2 is directly connected with electric tool 3；Electric tool 3 is started working；In 2 output voltage of battery bag
When normal, and the output voltage Ub of battery bag 2 (Ub outside predeterminated voltage U0～U1 scopes in controller 14>U1 or Ub<U0), control
Device processed 14 then controls first voltage conversion module 11 and starts, it is ensured that the voltage obtained by electric tool 3 meets the requirements (U0<=Uout
<=U1).In above-mentioned middle controller 14 predeterminated voltage U0～U1 scopes that is to say controller 14 from electric tool 3 get it is electronic
Instrument 3 work needed for voltage range.
According to embodiments of the present invention, by the information of voltage of the battery bag for detecting adjusting the output to the electricity of electric tool
Pressure, it is possible to achieve a kind of battery bag adapts to different type electric tool, reduces battery bag species and also reduces use cost.
Preferably, after electric tool startup, method also includes：Judge the output voltage of battery bag whether less than default
Protection voltage；In the case where the output voltage of battery bag is less than default protection voltage, control through swtich disconnects, or stops
First voltage conversion module.
When the output voltage of battery bag 2 is less than presetting protection voltage Up in controller 14, controller then control S2 disconnect and
First voltage conversion module 11 is not exported, and electric tool cannot start work.In in working order, if start and stop detecting module 13
Monitor that electric tool 3 is shut down, controller 14 then controls S2 disconnections and first voltage conversion module 11 is not exported, electric tool 3
Shut down；It is then shut off power module 15, power cut-off.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And thus it is extended obvious change or
Among changing still in the protection domain of the invention.
Claims (10)
1. a kind of voltage transformation switching device for electric tool, it is characterised in that include：
First voltage conversion module, input are connected with battery bag connector, and outfan is connected with the pole piece of electric tool,
For the voltage of the voltage conversion that exports the battery bag for needed for electric tool work；
Start-up circuit, including second voltage conversion module, input is connected with the battery bag connector, outfan with it is electronic
The pole piece of instrument is connected, and starts voltage for providing to the electric tool；
Start and stop detecting module, is connected with the outfan of the second voltage conversion module, for being become according to the second voltage
The signal of telecommunication of the outfan of mold changing block judges whether the electric tool starts, wherein, in the situation that the electric tool starts
Under, the first voltage conversion module starts and exports the voltage needed for the electric tool work.
2. voltage transformation switching device according to claim 1, it is characterised in that the electric tool includes：Panel
And motor, the panel be used for control the electric motor starting, wherein,
The first voltage conversion module for providing the voltage needed for its work to the motor；
The second voltage conversion module is for the panel offer startup voltage.
3. voltage transformation switching device according to claim 1 and 2, it is characterised in that the second voltage conversion module
Power less than the first voltage conversion module power.
4. voltage transformation switching device according to claim 1 and 2, it is characterised in that the start-up circuit also includes：Two
Pole pipe, is connected on the outfan of the second voltage conversion module, for controlling the unidirectional defeated of the second voltage conversion module
Go out.
5. voltage transformation switching device according to claim 1, it is characterised in that the first voltage conversion module is
DC/DC modules, it is direct-connected by through swtich between the input and outfan of the DC/DC modules homopolarity, in the battery bag
Output voltage in the voltage range needed for electric tool work in the case of, control through swtich closure.
6. the voltage transformation switching device according to claim 1 or 2 or 5, it is characterised in that also include：
Controller, is connected with the first voltage conversion module, for being controlled to the first voltage conversion module；
Power module, is respectively connected with the controller and the start and stop detecting module, for powering to the controller, its
In, the start and stop detecting module in the case of electric tool startup controls the power module and starts.
7. voltage transformation switching device according to claim 6, it is characterised in that also include：
Signal imitation module, is respectively connected with the controller, the power module and the panel, for the control
Making sheet is communicated with obtaining the information of voltage needed for the electric tool work.
8. voltage transformation switching device according to claim 7, it is characterised in that the controller includes：
Voltage detection module, for detecting the information of voltage of the battery bag；
Current detection module, for detecting the current information of the battery bag；
Temperature detecting module, for detecting the temperature information of the battery bag；And
Control module, is respectively connected with the voltage detection module, current detection module and temperature detecting module.
9. a kind of voltage transformation method for electric tool, it is characterised in that include：
Whether detection electric tool starts；
In the case where the electric tool starts, the information of voltage of battery bag is detected；
In the case where the output voltage of the battery bag is in the voltage range needed for electric tool work, control is straight
Open up closing to close, do not start first voltage conversion module；
In the case where the output voltage of the battery bag is outside the voltage range needed for electric tool work, start institute
First voltage conversion module is stated, is in needed for electric tool work with the output voltage for controlling first voltage conversion module
In voltage range.
10. voltage transformation method according to claim 9, it is characterised in that after the electric tool starts, described
Method also includes：
Judge the output voltage of the battery bag whether less than default protection voltage；
In the case where the output voltage of the battery bag is less than default protection voltage, controls the through swtich and disconnect, or
Stop the first voltage conversion module.
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| CN201610954938.6A CN106514569B (en) | 2016-11-03 | 2016-11-03 | A kind of voltage transformation switching device and its voltage transformation method for electric tool |
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| CN201610954938.6A CN106514569B (en) | 2016-11-03 | 2016-11-03 | A kind of voltage transformation switching device and its voltage transformation method for electric tool |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110744503A (en) * | 2018-07-23 | 2020-02-04 | 南京德朔实业有限公司 | Electric tool, combination of electric tool and battery pack |
| CN111490567A (en) * | 2019-01-28 | 2020-08-04 | 青岛海信移动通信技术股份有限公司 | Mobile terminal and power supply control method thereof |
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| CN106514569B (en) | 2018-08-14 |
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