CN105207282A - Electric tool - Google Patents
Electric tool Download PDFInfo
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- CN105207282A CN105207282A CN201410307599.3A CN201410307599A CN105207282A CN 105207282 A CN105207282 A CN 105207282A CN 201410307599 A CN201410307599 A CN 201410307599A CN 105207282 A CN105207282 A CN 105207282A
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Abstract
The invention discloses an electric tool. The electric tool comprises a tool host and a battery pack. The tool host comprises a power device. The power device possesses a rated voltage. The battery pack comprises an electrical core unit and an output terminal. The electrical core unit possesses an electrical core voltage and the output terminal possesses one output voltage. The battery pack provides power for the tool host through the output terminal. The tool host also comprises a main identification module capable of identifying the battery pack, a main adjusting module which adjusts electric energy output by the output terminal into electric energy adapted to the power device and a main control module controlling the main adjusting module. The battery pack also comprises a secondary identification module capable of identifying the power device, a secondary adjusting module which adjusts the electric energy output by the output terminal of the battery pack and makes the electric energy match with the power device and a secondary control module controlling the secondary adjusting module. The power device in the electric tool can use various kinds of battery packs possessing different output voltages to provide power for the power device.
Description
Technical field
The present invention relates to a kind of power tool, the electric tool that the output voltage being specifically related to a kind of power brick can be converted.
Background technology
Existing electric tool in use, a tool host only can use a kind of power brick with specific output voltage usually, such as, rated voltage when tool host works under nominal power is 18V, so this tool host can only use the power brick with 18V output voltage, and usually can not use the power brick with 56V, 36V output voltage.Like this, when a tool host with 18V rated voltage needs a power brick to power, and the restriction of condition of work is subject to, only there is the power brick of a 36V output voltage at one's side, at this moment, this power brick then can not be powered for this tool host, affects the continuation of work.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of electric tool, the power device in this electric tool can use the multiple power brick with different output voltage to power for it.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
A kind of electric tool, comprising: tool host and the power brick of powering for tool host, and tool host at least comprises the power device that can utilize electric energy practical function, and power device at least has a rated voltage; Power brick at least comprises the battery core unit of an energy storage of electrical energy, battery core unit or the entirety be made up of multiple battery core unit at least have a battery core voltage, power brick also comprises the lead-out terminal that two export electric energy, and lead-out terminal at least has an output voltage; Power brick is that tool host is powered by lead-out terminal; Tool host also comprises: the electric energy that lead-out terminal exports is adjusted to the main adjusting module of the adaptive electric energy of power device according to the recognition result of main identification module by main identification module that can identify power brick, energy, the recognition result of a main identification module of basis controls the major control module of main adjusting module; Or power brick also comprises: secondary identification module that can identify power device, energy make the secondary adjusting module of its adaptive power device, a secondary control module controlling secondary adjusting module according to the recognition result of secondary identification module according to the electric energy that the recognition result adjustment power brick lead-out terminal of secondary identification module exports; Or tool host comprises: main identification module, main adjusting module, major control module, power brick comprises: secondary identification module, secondary adjusting module, secondary control module, and major control module and secondary control module form communication and be connected.
Further, tool host also comprises: the input terminal that two energy are electrically connected with lead-out terminal, an electric energy accepted by input terminal are supplied to the power supply circuits of power device, and input terminal has the input voltage that equals output voltage; The mains voltage adjusting module that an adjustment input voltage makes power device work under rated voltage is at least comprised in main adjusting module.
Further, output voltage is more than or equal to rated voltage.
Further, at least comprise in mains voltage adjusting module: the first switch and second switch, first switch all at least has with second switch: can being communicated with or two switch terminals of disconnection of cycle, two switch terminals of the first switch are arranged in power supply circuits, two switch terminals power supply circuits when being communicated with of the first switch are that power device is powered, and when two switch terminals of the first switch disconnect, power supply circuits cut off the power supply to power device.
Further, two switch terminals of second switch are connected electrically in the both sides of power device, and two switch terminals power device when being communicated with of second switch is shorted.
Further, the first switch and second switch all have the control end being connected to major control module, and major control module controls the duty ratio of the first switch and second switch respectively by control end.
Further, power brick also comprises the output circuit that the entirety that battery core unit or battery core unit are formed is electrically connected to lead-out terminal by, at least comprises in secondary adjusting module: one adjusts battery core voltage and the secondary voltage adjusting module as output voltage, power device being worked under institute's rated voltage the battery core voltage after adjustment.
Further, battery core voltage is more than or equal to rated voltage.
Further, at least comprise in secondary voltage adjusting module: the 3rd switch and the 4th switch, 3rd switch all at least has with the 4th switch: can being communicated with or two switch terminals of disconnection of cycle, two switch terminals of the 3rd switch are arranged in output circuit, two switch terminals output circuit when being communicated with of the 3rd switch is powered to lead-out terminal, and when two switch terminals of the 3rd switch disconnect, output circuit cuts off the power supply to lead-out terminal.
Further, two switch terminals of the 4th switch are electrically connected to two lead-out terminals respectively to make power brick in the both sides for making two switch terminals of the 4th switch be electrically connected to power device respectively when tool host is powered, and two switch terminals power device when being communicated with of the 4th switch is shorted.
Further, the 3rd switch and the 4th switch all have the control end being connected to secondary control module, and secondary control module controls the duty ratio of the 3rd switch and the 4th switch respectively by control end.
Further, main identification module comprises a main trigger switch, main trigger switch at least has a main contact, power brick is formed with the power brick identification structure that can contact main contact, the power brick with different output voltage has different power brick identification structures, and different power brick identification structures can trigger main trigger switch and is in different states thus makes main adjusting module be in different states; Secondary identification module comprises a secondary trigger switch, secondary trigger switch at least has a secondary contact, tool host is formed with the tool identification structure that can contact secondary contact, the tool host with different rated voltage has different tool identification structures, and different tool identification structures can trigger secondary trigger switch and is in different states thus makes secondary adjusting module be in different states.
Or main identification module comprises: the mains voltage identification module that can identify voltage, mains voltage identification module comprises a main recognition terminal; Power brick at least comprises the power brick voltage terminal that has power brick identification voltage; After power brick is mounted to tool host, main recognition terminal forms with power brick voltage terminal and is electrically connected, the power brick identification voltage identification that mains voltage identification module can be introduced according to main recognition terminal goes out the output voltage of power brick and feeds back to major control module, and major control module is according to the main adjusting module work of output voltage control; Secondary identification module comprises: the secondary voltage identification module that can identify voltage, and secondary voltage identification module comprises a secondary recognition terminal; Tool host at least comprises the instrument voltage terminal that has tool identification voltage; After power brick is mounted to tool host, secondary recognition terminal forms with instrument voltage terminal and is electrically connected, the tool identification voltage identification that secondary voltage identification module can be introduced according to secondary recognition terminal goes out the rated voltage of tool host and feeds back to secondary control module, and secondary control module controls secondary adjusting module work according to rated voltage.
Further, main recognition terminal and instrument voltage terminal are same terminal, and secondary recognition terminal and power brick voltage terminal are same terminal.
Or, main identification module also comprises: at least record the host data label of its rated voltage, primary communications module, secondary identification module also comprises: the power brick data label at least recording battery core voltage, the secondary communication module that can be connected with the communication of primary communications module composition; Power brick is after being mounted to tool host, and major control module, secondary control module read the content of host data label and power brick data label respectively, and carries out data interaction respectively by primary communications module and secondary communication module.
Usefulness of the present invention is: arrange main identification module, main adjusting module and major control module in tool host inside, the output voltage of the power brick received can be adjusted to the rated voltage of tool host, thus solve in prior art the problem that the power brick with a kind of output voltage can only be applicable to the tool host with same nominal voltage, thus same power brick can be made can be applicable to the tool host with different rated voltage more; Or secondary identification module, secondary adjusting module and secondary control module are set in power brick inside, can directly inner in power brick be the rated voltage of tool host by battery core Voltage Cortrol, and using the output voltage of the battery core voltage after adjustment as power brick, thus make this power brick also can be applicable to the tool host with different rated voltage more.
Accompanying drawing explanation
Figure 1 shows that the structural representation of electric tool of the present invention;
Figure 2 shows that the modular structure schematic diagram of the first embodiment of the present invention;
Figure 3 shows that the power supply circuit construction schematic diagram of the first embodiment of the present invention;
Figure 4 shows that the structural representation of main trigger switch in first embodiment of the invention and power brick identification structure.
Figure 5 shows that the modular structure schematic diagram of the second embodiment of the present invention;
Figure 6 shows that the power supply circuit construction schematic diagram of the second embodiment of the present invention;
Figure 7 shows that the structural representation of secondary trigger switch in second embodiment of the invention and tool identification structure;
Figure 8 shows that the modular structure schematic diagram of the third embodiment of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, concrete introduction is done to the present invention.
The present invention proposes a kind of electric tool.Figure 1 shows that the structural representation of electric tool of the present invention.Please refer to Fig. 1, electric tool 10 of the present invention comprises tool host 100 and power brick 200.
In the present invention, tool host 100 comprises a power device (in Fig. 1 non-label), this power device can utilize the electric energy implementation tool function of power brick 200, that is to say that this power device is the main part of tool host 100, it can convert electric energy to mechanical energy, by mechanical type implementation tool function, in the present embodiment, this power device also has a rated voltage in normal operation.
Power brick 200 comprises a battery core unit (in Fig. 1 non-label) or multiple battery core unit and two lead-out terminals 220, and multiple battery core unit forms a whole.Battery core unit is used for storage of electrical energy, and the entirety that a battery core unit or multiple battery core unit form has a battery core voltage; Lead-out terminal 220 is for exporting the electric energy of power brick 200, and for tool host 100 is powered, in the present embodiment, this lead-out terminal 220 also has an output voltage when exporting electric energy.
Figure 2 shows that the modular structure schematic diagram of the first embodiment of the present invention; Figure 3 shows that the power supply circuit construction schematic diagram of the first embodiment of the present invention.Please with reference to Fig. 1 to Fig. 3, in the present embodiment, tool host 100 comprises two input terminals 120 and power supply circuits, and further, tool host 100 also comprises main identification module 130, main adjusting module 140 and major control module 150.
Two input terminals 120 are connected with two lead-out terminals 220 of power brick 200 respectively, and input terminal 120 also has an input voltage, and input voltage equals the output voltage of lead-out terminal 220; Power supply circuits are used for the electric energy that input terminal 120 accepts to be supplied to power device 110 to carry out work.
Main identification module 130 can identify the output voltage of power brick 200.Main identification module 130 specifically can comprise a main trigger switch, this main trigger switch has main contact, a power brick identification structure is formed in power brick 200, this power brick identification structure can touch main contact, and the power brick 200 with different output voltages has different power brick identification structures, different power brick identification structures can trigger main trigger switch and be in different states, thus make main adjusting module 140 be in different states, realize different Voltage Cortrol conversions.
Figure 4 shows that the structural representation of main trigger switch in first embodiment of the invention and power brick identification structure.Please refer to Fig. 4, concrete, in the present embodiment, this main trigger switch can for having the main frame mechanical switch 131 of two main contacts, and each main contact be one can by the main frame shell fragment 132 compressed, power brick identification structure can protrude rib 233 for the power brick protruding from power brick 200, the power brick 200 with different output voltage can have the power brick protrusion rib 233 of different structure, the power brick of different structure protrudes rib 233 can make mechanical switch be in different states, such as say, when the power brick protrusion rib 233 had in the power brick 200 of the output voltage of 56V contacts with two main frame shell fragments 132, two main frame shell fragments 132 can be made to be compressed simultaneously, thus main frame mechanical switch 131 is in the first state, at this moment the main state recognition of identification module 130 residing for main frame mechanical switch 131 goes out the output voltage that power brick 200 has 56V, main adjusting module 140 adjusts according to this recognition result, here, can arrange power brick protrusion rib 233 is decussate texture, when the power brick protrusion rib 233 had in the power brick 200 of the output voltage of 36V contacts with two main frame shell fragments 132, one of them that can make in two main frame shell fragments 132 is compressed, another one is not compressed, thus main frame mechanical switch 131 is in the second state, at this moment the main state recognition of identification module 130 residing for main frame mechanical switch 131 goes out the output voltage that power brick 200 has 36V, main adjusting module 140 adjusts according to this recognition result, here, power brick can be set and protrude rib 233 for T-shaped structure, when the power brick protrusion rib 233 had in the power brick 200 of the output voltage of 18V contacts with two main frame shell fragments 132, two main frame shell fragments 132 can be made not compressed simultaneously, thus main frame mechanical switch 131 is in the third state, that is to say that main frame mechanical switch 131 is not triggered, at this moment the main state recognition of identification module 130 residing for main frame mechanical switch 131 goes out the output voltage that power brick 200 has 18V, main adjusting module 140 adjusts according to this recognition result, here, can arrange power brick protrusion rib 233 is 1 character form structure.It should be noted that, when the output voltage of power brick 200 is corresponding to the rated voltage of power device 110, then do not need the adjustment of main adjusting module 140, but the output voltage directly accepting power brick 200 is to power device 110.
Certainly the structure of main trigger switch only illustrates here, as required, main trigger switch can comprise a main contact arbitrarily, to adapt to the power brick 200 with different output voltage more, understandable, this main trigger switch may also be only one has multiple different state main contact according to triggering situation difference.Preferred, in the present embodiment, this main trigger switch also can be a kind of slide rheostat, and the state be triggered by slide rheostat difference identifies the output voltage of different power brick.
In the present embodiment, main identification module 130 also can be set to comprise the mains voltage identification module that an energy identifies voltage by those skilled in the art, this mains voltage identification module comprises a main recognition terminal, power brick 200 comprises the power brick voltage terminal that has power brick identification voltage, when power brick 200 is mounted to after in tool host 100, main recognition terminal forms with power brick voltage terminal and is electrically connected, main recognition terminal can identify the power brick identification voltage introduced, mains voltage identification module goes out the output voltage of power brick 200 according to the power brick identification voltage identification identified, the output voltage of the power brick 200 of identification is fed back to major control module 150 by mains voltage identification module, major control module 150 is according to the main adjusting module 140 of output voltage control.
More specifically, this main recognition terminal can be an electric contact point, power brick voltage terminal can for having the electrode of a power brick identification voltage, the power brick 200 with different output voltages can have different power brick identification voltage, such as say, the power brick 200 with 56V output voltage can have the electrode of the power brick identification voltage of a 5V, the main recognition terminal be electrically connected with this electrode can receive this power brick identification voltage, thus mains voltage identification module identifies according to the Received signal strength of main recognition terminal the output voltage that this power brick 200 has 56V, the power brick 200 with 36V output voltage can have the electrode of the power brick identification voltage of a 3V, the main recognition terminal be electrically connected with this electrode can receive this power brick identification voltage, thus mains voltage identification module identifies according to the Received signal strength of main recognition terminal the output voltage that this power brick 200 has 36V, the power brick 200 with 18V output voltage can have the electrode of the power brick identification voltage of a 2V, the main recognition terminal be electrically connected with this electrode can receive this power brick identification voltage, thus mains voltage identification module identifies according to the Received signal strength of main recognition terminal the output voltage that this power brick 200 has 18V.
The electric energy that lead-out terminal 220 exports is adjusted to the adaptive electric energy of power device 110 for the recognition result according to main identification module 130 by main adjusting module 140, and electric energy adaptive here that is to say instigates power device 110 can work under nominal power.In the present invention, main adjusting module 140 comprises mains voltage adjusting module, and the input voltage of input terminal 120 can be adjusted to rated voltage by mains voltage adjusting module, and power device 110 is worked under rated voltage.In the present embodiment, the output voltage of power brick 200 is more than or equal to the rated voltage of power device 110, such as, say, when the output voltage of power brick 200 is 56V, the rated voltage of power device 110 can be 56V, 36V or 18V etc.
Mains voltage adjusting module comprises the first switch 141 and second switch 142, first switch 141 and second switch 142 and all has two switch terminals and a control end, and wherein, two switch terminals can the connection in cycle or disconnection.Two switch terminals of the first switch 141 are arranged in power supply circuits, and the first switch 141 also forms with power device 110 and connects, when two switch terminals of the first switch 141 are communicated with, power supply circuits can be powered for power device 110, when two switch terminals of the first switch 141 disconnect, power supply circuits are cut off, then can not power to power device 110; The control end of the first switch 141 is connected with major control module 150, and major control module 150 adjusts the duty ratio of the first switch 141 according to the recognition result of the main identification module 130 received.Two switch terminals of second switch 142 are electrically connected with the both sides of power device 110, thus make second switch 142 form in parallel with power device 110, thus when two switch terminals of second switch 142 are communicated with, power device 110 will be shorted; The control end of second switch 142 is also connected with major control module 150, and major control module 150 also adjusts the duty ratio of second switch 142 according to the recognition result of the main identification module 130 received.
Concrete, in the present embodiment, first switch 141 and second switch 142 are MOSFET pipe, first switch 141 is formed with the motor 111 in power device 110 in power supply circuits connects, second switch 142 forms in parallel with motor 111 in power supply circuits, major control module 150 is a MCU chip that can be connected with the control end of the first switch 141 and second switch 142 respectively, and the first control signal can be sent to the control end of the first switch 141, control end to second switch 142 sends the second control signal, the first switch 141 is controlled by the first control signal and the second control signal, the duty ratio of second switch 142.Such as when the output voltage of power brick 200 is 36V, the rated voltage of power device 110 is 18V, this power device 110 can be applicable to realize power brick 200, and power device 110 can be made to work under nominal power, in one-period, first MCU chip sends the first control signal to the control end of the first switch 141, and this first control signal is high level, send the second control signal to second switch 142 simultaneously, and this second control signal is low level, now, first switch 141 is opened, second switch 142 is closed, at this moment the electric current in power supply circuits flows through motor 111, power device 110 is started working, when the duration of the high level of the first control signal meets default duty ratio, such as, in the present embodiment, default duty ratio is 0.5, that is to say the ratio for rated voltage and output voltage, namely when the first control signal high level hold time reach 0.5 cycle time, first control signal changes low level into, second control signal changes high level into simultaneously, namely the first switch 141 cuts out, second switch 142 is opened, at this moment the electric current flowing through motor 111 can not be undergone mutation, electric current flows through second switch 142 and forms current circuit, motor 111 is worked on, complete the control of one-period, repeat above process, power device 110 then can be made to work when 18V.
Figure 5 shows that the modular structure schematic diagram of the second embodiment of the present invention; Figure 6 shows that the power supply circuit construction schematic diagram of the second embodiment of the present invention.Please with reference to Fig. 1, Fig. 5 and Fig. 6, in the present embodiment, power brick 200 also comprises secondary identification module 230, secondary adjusting module 240 and secondary control module 250.
In the present embodiment, power brick 200 also comprises an output circuit, and output circuit is used for the entirety that battery core unit 210 or multiple battery core unit 210 are formed to be electrically connected to lead-out terminal 220.
Secondary identification module 230 can identify the rated voltage of power device 110.Secondary identification module 230 specifically can comprise a secondary trigger switch, this secondary trigger switch has secondary contact, a tool identification structure is formed in tool host 100, this tool identification structure can touch secondary contact, and the tool host 100 with different rated voltages has different tool identification structures, different tool identification structures can trigger secondary trigger switch and be in different states, thus make secondary adjusting module 240 be in different states, realize different Voltage Cortrol conversions.
Figure 7 shows that the structural representation of secondary trigger switch in second embodiment of the invention and tool identification structure.Please refer to Fig. 7, concrete, in the present embodiment, this secondary trigger switch can for having the power brick mechanical switch 231 of two secondary contacts, and each secondary contact be one can by compression power brick shell fragment 232, tool identification structure can protrude rib 133 for the main frame protruding from tool host 100, the tool host 100 with different rated voltage can have the main frame protrusion rib 133 of different structure, the main frame of different structure protrudes rib 133 can make power brick mechanical switch 231 be in different states, such as say, when the main frame protrusion rib 133 had in the tool host 100 of the rated voltage of 56V contacts with two power brick shell fragments 232, two power brick shell fragments 232 can be made to be compressed simultaneously, thus power brick mechanical switch 231 is in the first state, at this moment the state recognition of secondary identification module 230 residing for power brick mechanical switch 231 goes out the rated voltage that tool host 100 has 56V, secondary adjusting module 240 carries out adjustment battery core voltage according to this recognition result, the output voltage of power brick 200 is made to be 56V, here, can arrange main frame protrusion rib 133 is decussate texture, when the main frame protrusion rib 133 had in the tool host 100 of the rated voltage of 36V contacts with two power brick shell fragments 232, one of them that can make in two power brick shell fragments 232 is compressed, another one is not compressed, thus power brick mechanical switch 231 is in the second state, at this moment the state recognition of secondary identification module 230 residing for power brick mechanical switch 231 goes out the rated voltage that tool host 100 has 36V, secondary adjusting module 240 carries out adjustment battery core voltage according to this recognition result, the output voltage of power brick 200 is made to be 36V, here, main frame can be set and protrude rib 133 for T-shaped structure, when the main frame protrusion rib 133 had in the tool host 100 of the rated voltage of 18V contacts with two power brick shell fragments 232, two power brick shell fragments 232 can be made not compressed simultaneously, thus power brick mechanical switch 231 is in the third state, that is to say that power brick mechanical switch 231 is not triggered, at this moment the state recognition of secondary identification module 230 residing for power brick mechanical switch 231 goes out the rated voltage that tool host 100 has 18V, secondary adjusting module 240 carries out adjustment battery core voltage according to this recognition result, the output voltage of power brick 200 is made to be 18V, here, can arrange main frame protrusion rib 133 is 1 font structure.It should be noted that, when the battery core voltage of power brick 200 is corresponding to the rated voltage of power device 110, does not then need the adjustment of secondary adjusting module 240, but battery core voltage is directly exported to tool host 100 as the output voltage of power brick 200.
Certainly the structure of secondary trigger switch only illustrates here, as required, secondary trigger switch can comprise a secondary contact arbitrarily, to adapt to the tool host 100 with different rated voltage more, understandable, this secondary contact may also be only one has multiple different state secondary contact according to triggering situation difference.Preferred, in the present embodiment, this secondary trigger switch also can be a kind of slide rheostat, and the state be triggered by slide rheostat difference identifies the rated voltage of different tool host.
In the present embodiment, secondary identification module 230 also can be set to comprise the secondary voltage identification module that an energy identifies voltage by those skilled in the art, this secondary voltage identification module comprises a secondary recognition terminal, tool host 100 comprises the instrument voltage terminal that has tool identification voltage, when power brick 200 is mounted to after in tool host 100, secondary recognition terminal forms with instrument voltage terminal and is electrically connected, secondary recognition terminal can identify the tool identification voltage introduced, secondary voltage identification module goes out the rated voltage of tool host 100 according to the tool identification voltage identification identified, the rated voltage of the tool host 100 of identification is fed back to secondary control module 250 by secondary voltage identification module, secondary control module 250 controls secondary adjusting module 240 according to rated voltage.
More specifically, this secondary recognition terminal can be an electric contact point, instrument voltage terminal can for having the electrode of a tool identification voltage, the tool host 100 with different rated voltages can have different tool identification voltage, such as say, the tool host 100 with 56V rated voltage can have the electrode of the tool identification voltage of a 5V, the secondary recognition terminal be electrically connected with this electrode can receive this tool identification voltage, thus secondary voltage identification module identifies according to the Received signal strength of secondary recognition terminal the rated voltage that this tool host 100 has 56V, the tool host 100 with 36V rated voltage can have the electrode of the tool identification voltage of a 3V, the secondary recognition terminal be electrically connected with this electrode can receive this tool identification voltage, thus secondary voltage identification module identifies according to the Received signal strength of secondary recognition terminal the rated voltage that this tool host 100 has 36V, the tool host 100 with 18V rated voltage can have the electrode of the tool identification voltage of a 2V, the secondary recognition terminal be electrically connected with this electrode can receive this tool identification voltage, thus secondary voltage identification module identifies according to the Received signal strength of secondary recognition terminal the rated voltage that this tool host 100 has 18V.Preferred, the secondary recognition terminal in the present embodiment and the power brick voltage terminal in the first embodiment can be made to be set to same terminal, and the instrument voltage terminal in the present embodiment and the main recognition terminal in the first embodiment are same terminal.
The electric energy that lead-out terminal 220 exports is adjusted to the adaptive electric energy of power device 110 for the recognition result according to secondary identification module 230 by secondary adjusting module 240, and electric energy adaptive here that is to say instigates power device 110 can work under nominal power.In the present invention, secondary adjusting module 240 comprises secondary voltage adjusting module, battery core Voltage Cortrol can be the output voltage being re-used as lead-out terminal 220 after the rated voltage of tool host 100 by secondary voltage adjusting module, and power device 110 is worked under rated voltage.In the present embodiment, the battery core voltage of the entirety that battery core unit 210 or multiple battery core unit 210 are formed is more than or equal to the rated voltage of power device 110, such as say, when battery core voltage is 56V, the rated voltage of power device 110 can be 56V, 36V or 18V etc.
Secondary voltage adjusting module comprises the 3rd switch 241 and the 4th switch the 242, three switch 241 and the 4th switch 242 and all has two switch terminals and a control end, and wherein, two switch terminals can the connection in cycle or disconnection.Two switch terminals of the 3rd switch 241 are arranged in output circuit, and a switch terminals of the 3rd switch 241 is connected to the positive pole of battery core unit 210, another switch terminals is connected on a lead-out terminal 220, and the negative pole of battery core unit 210 is connected with another lead-out terminal 220, that is to say that being equivalent to the 3rd switch 241 forms with power device 110 and connect, when two switch terminals of the 3rd switch 241 are communicated with, output circuit can be powered for power device 110, when two switch terminals of the 3rd switch 241 disconnect, output circuit is cut off, then can not power to power device 110, the control end of the 3rd switch 241 is connected with secondary control module 250, and secondary control module 250 is according to the duty ratio of recognition result adjustment the 3rd switch 241 of the secondary identification module 230 received.A switch terminals in two switch terminals of the 4th switch 242 is connected with a lead-out terminal 220, another switch terminals is connected with another lead-out terminal 220,4th switch 242 is electrically connected with the both sides of power device 110, thus make the 4th switch 242 form in parallel with power device 110, thus when two switch terminals of the 4th switch 242 are communicated with, power device 110 will be shorted; The control end of the 4th switch 242 is also connected with secondary control module 250, and secondary control module 250 also adjusts the duty ratio of the 4th switch 242 according to the recognition result of the secondary identification module 230 received.
Concrete, in the present embodiment, 3rd switch 241 and the 4th switch 242 are MOSFET pipe, 3rd switch 241 essence in output circuit is formed with the motor 111 in power device 110 connects, 4th switch 242 essence in output circuit forms in parallel with motor 111, secondary control module 250 is a MCU chip that can be connected with the control end of the 3rd switch 241 and the 4th switch 242 respectively, and the 3rd control signal can be sent to the control end of the 3rd switch 241, control end to the 4th switch 242 sends the 4th control signal, the 3rd switch 241 is controlled by the 3rd control signal and the 4th control signal, the duty ratio of the 4th switch 242.Such as when the battery core voltage of power brick 200 is 36V, the rated voltage of power device 110 is 18V, this power device 110 can be applicable to realize power brick 200, and power device 110 can be made to work under nominal power, in one-period, first MCU chip sends the 3rd control signal to the control end of the 3rd switch 241, and the 3rd control signal is high level, send the 4th control signal to the 4th switch 242 simultaneously, and the 4th control signal is low level, now, 3rd switch 241 is opened, 4th switch 242 cuts out, at this moment the electric current in output circuit flows through motor 111, power device 110 is started working, when the duration of the high level of the 3rd control signal meets default duty ratio, such as, in the present embodiment, default duty ratio is 0.5, that is to say the ratio for rated voltage and battery core voltage, namely when the 3rd control signal high level hold time reach 0.5 cycle time, 3rd control signal changes low level into, 4th control signal changes high level into simultaneously, namely the 3rd switch 241 cuts out, 4th switch 242 is opened, at this moment because the electric current flowing through motor 111 can not be undergone mutation, electric current flows through the 4th switch 242 and forms current circuit, motor 111 is worked on, complete the control of one-period, repeat above process, power device 110 then can be made to work when 18V.
Figure 8 shows that the modular structure schematic diagram of the third embodiment of the present invention.Please with reference to Fig. 1 and Fig. 8, in the present embodiment, tool host 100 comprises: main identification module 130, main adjusting module 140, major control module 150, meanwhile, power brick 200 comprises secondary identification module 230, secondary adjusting module 240, secondary control module 250.Wherein major control module 150 forms communication with secondary control module 250 and is connected, thus the secondary adjusting module 240 in the main adjusting module 140 of tool host 100 and power brick 200 can be made to adjust as required as required, can two adjust simultaneously, or only control one of them and adjust.Such as say, when the battery core voltage of power brick 200 is 36V, and when the rated voltage of power device 110 is 9V, a kind of mode is, 36V is directly adjusted to 9V by of only controlling in main adjusting module 140 or secondary adjusting module 240; Another kind of mode is, main adjusting module 140 and secondary adjusting module 240 are all controlled, first be the output voltage of 18V as power brick 200 by secondary adjusting module 240 using the battery core Voltage Cortrol of 36V, then after the output voltage of 18V that receives of input terminal 120 and as input voltage, by main adjusting module 140, the input voltage of 18V is adjusted to the rated voltage of 9V, thus power device 110 is worked under nominal power.
In the present embodiment, main identification module 130 comprises host data label 134, primary communications module 135, and secondary identification module 230 comprises power brick data label 234, secondary communication module 235.The rated voltage of tool host 100 is described in host data label 134, the battery core voltage in power brick 200 is described in power brick data label 234, secondary communication module 235 constitutes communication with primary communications module 135 and is connected, it can be electrical connection that this communication connects, also can be wireless connections, thus can exchange information.After power brick 200 is mounted to tool host 100, major control module 150 reads the rated voltage of the tool host 100 stored in host data label 134, secondary control module 250 reads the battery core voltage stored in power brick data label 234, then data interaction is carried out by primary communications module 135 and secondary communication module 235, major control module 150 and secondary control module 250 receive mutual data again and control main adjusting module 140 and secondary adjusting module 240 respectively, thus realize the conversion of electric energy.
In the present invention, main identification module, main adjusting module and major control module are set in tool host inside, the output voltage of the power brick received can be adjusted to the rated voltage of tool host, thus solve in prior art the problem that the power brick with a kind of output voltage can only be applicable to the tool host with same nominal voltage, thus same power brick can be made can be applicable to the tool host with different rated voltage more; Or secondary identification module, secondary adjusting module and secondary control module are set in power brick inside, can directly inner in power brick be the rated voltage of tool host by battery core Voltage Cortrol, and using the output voltage of the battery core voltage after adjustment as power brick, thus make this power brick also can be applicable to the tool host with different rated voltage more.
More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand, and above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.
Claims (15)
1. an electric tool, comprising: tool host and the power brick of powering for described tool host, and described tool host at least comprises the power device that can utilize electric energy practical function, and described power device at least has a rated voltage; Described power brick at least comprises the battery core unit of an energy storage of electrical energy, described battery core unit or the entirety be made up of multiple described battery core unit at least have a battery core voltage, described power brick also comprises the lead-out terminal that two export electric energy, and described lead-out terminal at least has an output voltage; Described power brick is that described tool host is powered by described lead-out terminal; It is characterized in that, described tool host also comprises: the major control module that the electric energy that described lead-out terminal exports is adjusted to the main adjusting module of the adaptive electric energy of described power device according to the recognition result of described main identification module by main identification module that can identify described power brick, energy, a recognition result according to described main identification module controls described main adjusting module; Or described power brick also comprises: the secondary control module that electric energy makes the secondary adjusting module of its adaptive described power device, a recognition result according to described secondary identification module controls described secondary adjusting module that can identify the secondary identification module of described power device, an energy adjusts the output of described power brick lead-out terminal according to the recognition result of described secondary identification module; Or, described tool host comprises: described main identification module, main adjusting module, major control module, described power brick comprises: described secondary identification module, secondary adjusting module, secondary control module, and described major control module forms communication with described secondary control module and is connected.
2. electric tool according to claim 1, it is characterized in that, described tool host also comprises: the input terminal that two energy are electrically connected with described lead-out terminal, the power supply circuits electric energy that described input terminal accepts being supplied to described power device, and described input terminal has the input voltage that equals described output voltage; The mains voltage adjusting module that a described input voltage of adjustment makes described power device work under described rated voltage is at least comprised in described main adjusting module.
3. electric tool according to claim 2, is characterized in that, described output voltage is more than or equal to described rated voltage.
4. electric tool according to claim 3, it is characterized in that, at least comprise in described mains voltage adjusting module: the first switch and second switch, described first switch all at least has with described second switch: can being communicated with or two switch terminals of disconnection of cycle, two switch terminals of described first switch are arranged in described power supply circuits, two switch terminals described power supply circuits when being communicated with of described first switch are that described power device is powered, and when two switch terminals of described first switch disconnect, described power supply circuits cut off the power supply to described power device.
5. electric tool according to claim 4, is characterized in that, two switch terminals of described second switch are connected electrically in the both sides of described power device, and two switch terminals described power device when being communicated with of described second switch is shorted.
6. electric tool according to claim 5, it is characterized in that, described first switch and described second switch all have the control end being connected to described major control module, and described major control module controls the duty ratio of described first switch and described second switch respectively by described control end.
7. electric tool according to claim 1, it is characterized in that, described power brick also comprises the output circuit that the entirety that described battery core unit or described battery core unit are formed is electrically connected to described lead-out terminal by, at least comprises in described secondary adjusting module: one adjusts described battery core voltage and the secondary voltage adjusting module as described output voltage, described power device being worked under institute's rated voltage the described battery core voltage after adjustment.
8. electric tool according to claim 7, is characterized in that, described battery core voltage is more than or equal to described rated voltage.
9. electric tool according to claim 8, it is characterized in that, at least comprise in described secondary voltage adjusting module: the 3rd switch and the 4th switch, described 3rd switch all at least has with described 4th switch: can being communicated with or two switch terminals of disconnection of cycle, two switch terminals of described 3rd switch are arranged in described output circuit, two switch terminals described output circuit when being communicated with of described 3rd switch is powered to described lead-out terminal, and when two switch terminals of described 3rd switch disconnect, described output circuit cuts off the power supply to described lead-out terminal.
10. electric tool according to claim 9, it is characterized in that, two switch terminals of described 4th switch are electrically connected to two described lead-out terminals respectively to make described power brick in the both sides for making two switch terminals of described 4th switch be electrically connected to described power device respectively when described tool host is powered, and two switch terminals described power device when being communicated with of described 4th switch is shorted.
11. electric tools according to claim 10, it is characterized in that, described 3rd switch and the 4th switch all have the control end being connected to described secondary control module, and described secondary control module controls the duty ratio of described 3rd switch and the 4th switch respectively by described control end.
12. electric tools according to claim 1 to 11 any one, it is characterized in that, described main identification module comprises a main trigger switch, described main trigger switch at least has a main contact, described power brick is formed with the power brick identification structure that can contact described main contact, the described power brick with different described output voltage has different described power brick identification structures, and different described power brick identification structures can trigger described main trigger switch and is in different states thus makes described main adjusting module be in different states; Described secondary identification module comprises a secondary trigger switch, described secondary trigger switch at least has a secondary contact, described tool host is formed with the tool identification structure that can contact described secondary contact, the described tool host with different described rated voltage has different described tool identification structures, and different described tool identification structures can trigger described secondary trigger switch and is in different states thus makes described secondary adjusting module be in different states.
13. electric tools according to claim 1 to 11 any one, it is characterized in that, described main identification module comprises: the mains voltage identification module that can identify voltage, and described mains voltage identification module comprises a main recognition terminal; Described power brick at least comprises the power brick voltage terminal that has power brick identification voltage; After described power brick is mounted to described tool host, described main recognition terminal forms with described power brick voltage terminal and is electrically connected, the described power brick identification voltage identification that described mains voltage identification module can be introduced according to described main recognition terminal goes out the described output voltage of described power brick and feeds back to described major control module, and described major control module is main adjusting module work according to described output voltage control; Secondary identification module comprises: the secondary voltage identification module that can identify voltage, and described secondary voltage identification module comprises a secondary recognition terminal; Described tool host at least comprises the instrument voltage terminal that has tool identification voltage; After described power brick is mounted to described tool host, described secondary recognition terminal forms with described instrument voltage terminal and is electrically connected, the described tool identification voltage identification that described secondary voltage identification module can be introduced according to described secondary recognition terminal goes out the described rated voltage of described tool host and feeds back to described secondary control module, and described secondary control module controls described secondary adjusting module work according to described rated voltage.
14. electric tools according to claim 13, is characterized in that, described main recognition terminal and described instrument voltage terminal are same terminal, and described secondary recognition terminal and described power brick voltage terminal are same terminal.
15. electric tools according to claim 1 to 11 any one, it is characterized in that, described main identification module also comprises: at least record the host data label of its rated voltage, primary communications module, and described secondary identification module also comprises: the secondary communication module that at least record the power brick data label of described battery core voltage, can be connected with the communication of described primary communications module composition; Described power brick is after being mounted to described tool host, described major control module, secondary control module read the content of described host data label and described power brick data label respectively, and carry out data interaction respectively by described primary communications module and secondary communication module.
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| CN201410307599.3A CN105207282A (en) | 2014-06-30 | 2014-06-30 | Electric tool |
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| CN201410307599.3A CN105207282A (en) | 2014-06-30 | 2014-06-30 | Electric tool |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106169547A (en) * | 2016-08-31 | 2016-11-30 | 天佑电器（苏州）有限公司 | Electric tool and vacuum cleaner |
| CN111584788A (en) * | 2020-06-18 | 2020-08-25 | 格力博(江苏)股份有限公司 | Power Tools and Power Tool Systems |
| CN113843695A (en) * | 2020-06-28 | 2021-12-28 | 鼎朋企业股份有限公司 | Power supply structure of electric grinding machine tool |
| CN114362342A (en) * | 2020-09-30 | 2022-04-15 | 南京泉峰科技有限公司 | Electric tool system and battery pack thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1161580A (en) * | 1996-01-29 | 1997-10-08 | 索尼公司 | Battery discriminating method dry battery cell pack, and electronic device |
| CN1288601A (en) * | 1998-01-22 | 2001-03-21 | 艾利森公司 | Battery identification system |
| US20050248320A1 (en) * | 2004-05-04 | 2005-11-10 | Denning Bruce S | Switch reduction in a cordless power tool |
| CN101326703A (en) * | 2005-11-23 | 2008-12-17 | 麦太保有限公司 | Batteries for connection to electrical appliances |
| 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 |
-
2014
- 2014-06-30 CN CN201410307599.3A patent/CN105207282A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1161580A (en) * | 1996-01-29 | 1997-10-08 | 索尼公司 | Battery discriminating method dry battery cell pack, and electronic device |
| CN1288601A (en) * | 1998-01-22 | 2001-03-21 | 艾利森公司 | Battery identification system |
| US20050248320A1 (en) * | 2004-05-04 | 2005-11-10 | Denning Bruce S | Switch reduction in a cordless power tool |
| CN101326703A (en) * | 2005-11-23 | 2008-12-17 | 麦太保有限公司 | Batteries for connection to electrical appliances |
| 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106169547A (en) * | 2016-08-31 | 2016-11-30 | 天佑电器（苏州）有限公司 | Electric tool and vacuum cleaner |
| CN106169547B (en) * | 2016-08-31 | 2020-05-22 | 天佑电器（苏州）有限公司 | Electric tool and dust collector |
| CN111584788A (en) * | 2020-06-18 | 2020-08-25 | 格力博(江苏)股份有限公司 | Power Tools and Power Tool Systems |
| CN113843695A (en) * | 2020-06-28 | 2021-12-28 | 鼎朋企业股份有限公司 | Power supply structure of electric grinding machine tool |
| CN114362342A (en) * | 2020-09-30 | 2022-04-15 | 南京泉峰科技有限公司 | Electric tool system and battery pack thereof |
| CN114362342B (en) * | 2020-09-30 | 2024-03-15 | 南京泉峰科技有限公司 | Electric tool system and battery pack thereof |
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