WO2011157232A1 - 电动工具的组合及其启动方法 - Google Patents

电动工具的组合及其启动方法 Download PDF

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Publication number
WO2011157232A1
WO2011157232A1 PCT/CN2011/075952 CN2011075952W WO2011157232A1 WO 2011157232 A1 WO2011157232 A1 WO 2011157232A1 CN 2011075952 W CN2011075952 W CN 2011075952W WO 2011157232 A1 WO2011157232 A1 WO 2011157232A1
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WO
WIPO (PCT)
Prior art keywords
power tool
signal
combination
control module
sound
Prior art date
Application number
PCT/CN2011/075952
Other languages
English (en)
French (fr)
Inventor
布朗·沃伦
索默·哈利
格哈雷·格雷厄姆
Original Assignee
苏州宝时得电动工具有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州宝时得电动工具有限公司 filed Critical 苏州宝时得电动工具有限公司
Publication of WO2011157232A1 publication Critical patent/WO2011157232A1/zh
Priority to US13/718,829 priority Critical patent/US9409273B2/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q41/00—Combinations or associations of metal-working machines not directed to a particular result according to classes B21, B23, or B24
    • 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
    • B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805—Parameters or conditions being sensed
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings

Definitions

  • the invention relates to a combination of power tools.
  • the invention also relates to a method of starting a combination of power tools.
  • the user In the daily work process, the user often uses two or more power tools to machine the workpiece. For example, in the process of cutting a workpiece, it is necessary to start the cutting machine. In order to avoid dust pollution caused by cutting and harming the health of the body, the cutting machine is often used together with the vacuum cleaner; or, the user needs to polish the workpiece in a dimly lit environment. At the same time, it is necessary to use both the work light and the sanding type power tool; or, when the user uses the bakelite to process the workpiece, in order to prevent the debris from blocking the line of sight while using the hair dryer to blow off the debris and the like.
  • the technical solution of the present invention is: a combination of a power tool, comprising: a first power tool and a second power tool respectively having independent power sources; the second power tool being capable of automatically responding to the first electric power The tool starts up and starts.
  • the second power tool is capable of automatically stopping in response to the closing of the first power tool.
  • the second power tool has a control module that automatically controls the activation of the second power tool by detecting vibration generated by the first power tool after activation.
  • control module includes receiving a sound signal generated by the vibration to automatically control a sound control module that activates the second power tool.
  • the second power tool includes an opening that controls activation of the second power tool Off
  • the sound control module includes: a sound sensor that converts the sensed sound signal into a sensing signal and outputs the sound sensor; and connects the sound sensor and the switch, and amplifies and outputs the sensing signal to the The signal amplifying circuit of the switch.
  • the sound control module further includes a comparator electrically connected between the signal amplifying circuit and the switch, the comparator comparing a voltage of the sensing signal with a preset reference voltage, The sound control module controls the switch to be energized when the voltage of the sensing signal is greater than the reference voltage.
  • the sound control module further includes a delay circuit capable of timing, the sound control module controlling the switch to be energized only when the sensing signal output by the sound sensor continues for a preset length of time.
  • the sound control module includes: a sound sensor, converting the sensed sound signal into an analog signal; a signal amplifying circuit electrically connected to the sound sensor, and amplifying the sensing signal according to a fixed multiple; An analog/digital conversion circuit electrically connected to the signal amplifying circuit, receiving the sensing signal and converting the analog signal into a digital signal; a memory storing a preset condition; a processor, and the analog/ The digital conversion circuit and the memory are electrically connected, receive the digital signal, and read the preset condition. When the digital signal meets a preset condition, the processor controls the second power tool to start.
  • the preset condition is a characteristic value of at least one of the sound signals, and the characteristic value is a frequency, an amplitude, a period, a wave peak, a trough value, or a combination of any one of them.
  • the sound control module further includes a filter circuit electrically connected between the sound sensor and the analog/digital conversion circuit.
  • the second power tool is operable to store the frequency, amplitude, period, peak value, valley value, or any combination thereof of the currently sensed sound signal to the memory as the preset condition.
  • control module includes a vibration control module that directly detects the vibration to automatically control activation of the second power tool.
  • the second electric power tool includes a switch that controls activation of the second electric power tool
  • the vibration control module includes a vibration sensor that detects the vibration and outputs a sensing signal; and connects the vibration sensor and the switch And amplifying the sensing signal and outputting the signal to the switch to energize the switch.
  • the vibration control module further includes a comparator electrically connected between the signal amplifying circuit and the switch, the comparator comparing a voltage of the sensing signal with a preset reference voltage, The vibration control module controls the switch to be energized only when the voltage of the sensing signal is greater than or equal to the reference voltage.
  • the first electric tool is selected from the group consisting of a sander, a table saw, a miter saw, an electric circular saw, a jig saw, an angle grinder, and an electric machine. Wood milling, electric hammer, electric drill, electric planer, belt machine, table jig saw or marble machine - o
  • the second power tool is selected from one of a vacuum cleaner, a water spray gun, a hair dryer or a portable work light.
  • the independent power source is a battery pack.
  • the second power tool is a vacuum cleaner
  • the vacuum cleaner further includes: a battery pack as a power source of the second power tool; a body for performing a dust suction operation; a dust suction pipe installed on the body, The dust suction pipe has a tool connection end connected to the first power tool.
  • control module is disposed in the dust suction pipe at a position adjacent to the tool connecting end.
  • control module is sealed within a sidewall of the suction pipe.
  • the combination of the power tool provided in the present invention is started by automatically causing the second power tool to automatically respond to the activation of the first power tool, thereby realizing the second electric power after the user activates the first power tool to work.
  • the tool is automatically activated without additional user intervention, which brings convenience to the user.
  • the first power tool and the second power tool respectively have independent power sources, the two are not affected by the voltage during the operation, thereby avoiding the problem that the power supply is insufficient due to the sharing of one power source.
  • the present invention also provides a method of starting a combination of power tools, the combination of the power tools comprising a first power tool and a second power tool, the starting method comprising: starting the first power tool, the second electric The tool is automatically activated in response to activation of the first power tool.
  • the starting method further comprises: before starting the first power tool, the first power tool and the second power tool are respectively connected to different power sources.
  • the second power tool automatically rings The operation of the first power tool should be stopped.
  • the combination starting method of the power tool of the present invention realizes that after the user starts the operation of the first power tool, the second power tool automatically starts without additional operation of the user, which brings convenience to the user.
  • the present invention provides a vacuum cleaner for use with a power tool, the vacuum cleaner comprising: a body capable of performing a vacuuming operation; a dust suction pipe mounted on the body; a switch for controlling whether the body is working;
  • the cleaner has a control module that controls the vibration generated by the power tool after startup to control whether the switch is energized or not.
  • control module is a sound control module that senses a sound signal generated by the vibration to control whether the switch is energized or not.
  • the sound control module includes: a sound sensor that converts the sensed sound into a sensing signal and outputs the sound sensor; and connects the sound sensor and the switch, and amplifies and outputs the sensing signal to the A signal amplifying circuit that switches the switch and energizes the switch.
  • the sound control module further includes a comparator electrically connected between the signal amplifying circuit and the switch, the comparator comparing a voltage of the sensing signal with a preset reference voltage, When the voltage of the sensing signal is greater than the reference voltage, the switch is controlled to be energized.
  • the sound control module further includes a delay circuit capable of timing, the sound control module controlling the switch to be energized only when the sensing signal output by the sound sensor continues for a predetermined length of time.
  • the sound sensor is located at a top of the body near a side where the suction pipe is installed.
  • the sound control module includes: a sound sensor that converts the sensed sound signal into an analog signal; a signal amplifying circuit that is electrically connected to the sound sensor, and fixes the sensing signal according to a a multiple amplification; an analog/digital conversion circuit electrically coupled to the signal amplification circuit, receiving the sensing signal and converting the analog signal into a digital signal; a memory storing a predetermined condition; a processor Electrically connecting with the analog/digital conversion circuit and the memory, and receiving the digital signal, reading the preset condition, and analyzing whether the digital signal meets a preset condition, if the preset condition is met And the processor controls the switch to be powered.
  • the preset condition is at least one characteristic value, and the characteristic value is a frequency, an amplitude, a period, a wave peak, a trough value, or a combination of any one of them.
  • the sound control module further includes a filter circuit electrically connected between the sound sensor and the analog/digital conversion circuit.
  • the cleaner is operative to store the frequency, amplitude, period, peak value, valley value, or any combination thereof of the currently sensed sound signal to the memory as the predetermined condition.
  • control module is a vibration control module that directly detects the vibration to control whether the switch is energized or not.
  • the vibration control module includes a vibration sensor that detects the vibration and outputs a sensing signal; is connected to the vibration sensor and the switch, and amplifies the sensing signal and outputs the same to the switch to cause the A signal amplifying circuit that energizes the switch.
  • the vibration control module further includes a comparator electrically connected between the signal amplifying circuit and the switch, the comparator comparing a voltage of the sensing signal with a preset reference voltage, The switch is controlled to be energized only when the voltage of the sense signal is greater than or equal to the reference voltage.
  • the dust suction pipe has a tool connecting end connected to the power tool, and the control module is disposed at a position adjacent to the tool connecting end in the dust suction pipe.
  • control module is sealed within a sidewall of the suction pipe.
  • the vacuum cleaner of the present invention controls the operation of the vacuum cleaner by sensing the vibration generated after the power tool is started, so that the vacuum cleaner and the power tool can have better working consistency.
  • the vacuum cleaner has an independent switch that can be connected to a power source with a power tool, so that there is no problem that the voltage of the power tool is insufficient due to the partial pressure of the vacuum cleaner. This setting brings convenience to the user's work.
  • the present invention also discloses a vacuum cleaner for use with a power tool, the vacuum cleaner comprising: a body capable of performing a vacuuming operation, the body being mounted with a handle for a user to hold; and being mounted on the body a function selection switch disposed on the body, the function selection switch being operable to open the off position of the vacuum cleaner and the power source, so that the vacuum cleaner continues to close the vacuuming operation a gear position, and causing the vacuum cleaner to automatically start by sensing vibration generated by the first power tool 1 after startup Or the automatic gear that stops working.
  • a trigger electrically connected to the function selection switch is mounted on the handle, and the function selection switch further has a trigger position that is controlled by the trigger to start or stop the vacuum cleaner.
  • the vacuum cleaner in the present invention can select different gear positions by setting a function selection switch, so that the vacuum cleaner can be in different functional states, thereby meeting the user's use requirements under different working conditions, so that The vacuum cleaner of the present invention has a very wide applicability.
  • FIG. 1 is a working principle diagram of a vacuum cleaner according to a first embodiment of the present invention
  • FIG. 2 is a functional block diagram of the vacuum cleaner of FIG.
  • Figure 3 is a perspective view of a vacuum cleaner according to a first embodiment of the present invention.
  • FIG. 4 is a perspective view of a vacuum cleaner according to a second embodiment of the present invention, wherein an end portion of the dust suction pipe for connecting the power tool is partially cut away;
  • Fig. 5 is a schematic view showing the operation of a vacuum cleaner according to a third embodiment of the present invention.
  • First power tool 40 Sound control module 300. Vacuum cleaner
  • a first embodiment of the present invention provides a combination of a power tool, including a first power tool 1 and a second power tool 100, the second power tool 100 being capable of automatically starting in response to activation of the first power tool 1.
  • the first power tool 1 can be a sanding machine, a table saw, a miter saw, an electric circular saw, a jig saw, Angle grinder, electric wood milling, electric hammer, electric drill, electric planer, belt machine, bench jig saw or marble machine, etc.
  • a sanding machine a table saw, a miter saw, an electric circular saw, a jig saw, Angle grinder, electric wood milling, electric hammer, electric drill, electric planer, belt machine, bench jig saw or marble machine, etc.
  • other power tools can also be used, and the space is not listed here.
  • the second power tool 100 is selected from the group consisting of a vacuum cleaner, a water spray gun, a hair dryer, or a portable work light. In the present embodiment, only the second power tool 100 is used as the cleaner 100, and the second power tool 100 is another tool. The situation is basically the same as that of the vacuum cleaner, and the space is not described here.
  • the vacuum cleaner 100 includes: a dust suction pipe 10, a body 20, a battery pack 23, a power cord 25, a function selection switch 29, an electronic switch 30, and a control module 35.
  • the dust suction pipe 10 is used to connect with the first power tool 1.
  • the residue generated therefrom enters the body 20 from the dust suction pipe 10 under the suction of the vacuum cleaner 100.
  • the first electric power tool 1 has a dust exhausting portion, and the dust suction pipe 10 is directly connected to the dust exhausting portion.
  • the shape of the dust suction pipe 10 can be designed according to the structure of the dust exhausting portion.
  • the dust discharging portion of the first electric power tool 1 has a tubular shape
  • the dust suction pipe 10 is also provided in a tubular shape and is made of a flexible material, so that The dust suction pipe 10 is sleeved with the dust exhausting portion, thereby facilitating the user to mount the dust suction pipe 10 to the dust exhausting portion.
  • the dust suction pipe 10 may not be used in connection with the dust discharge portion of the first electric power tool 1.
  • the free end of the dust suction pipe 10 can be placed near the working head of the first power tool 1, so that the vacuum cleaner 100 can be used in cooperation with the first power tool 1, and the working head can be used.
  • the residue generated during the machining of the workpiece is sucked away.
  • the dust suction pipe 10 and the body 20 are formed in a split type.
  • the dust suction pipe 10 may be provided with at least two free ends, one of which is for connection with the body 20, and the other free ends may be made to different sizes or shapes according to the needs of different power tools.
  • a plurality of vacuum tubes 10 of different sizes or shapes may be provided as needed, as long as they are provided with a free end for connection to the body 20, and the remaining portions may be sized or shaped according to actual conditions.
  • Other variations may be made by those skilled in the art, but as long as the functions and effects thereof are the same or similar to the present invention, they should be covered by the scope of the present invention.
  • the body 20 is connected to the dust suction pipe 10 and is capable of performing a dust suction operation.
  • the body 20 includes a motor (not shown), a fan (not shown) mounted to the motor, a filter assembly (not shown) for filtering debris in the gas, and for storing the Residue Storage box (not shown).
  • the motor will drive the fan to rotate at a high speed, and the air with the residue will enter the body 20 from the dust suction pipe 10. After being filtered by the filter assembly, the clean air will be discharged outside the vacuum cleaner 100, and the residue and dust will be removed. Stored in the storage box.
  • the body 20 is provided with a handle 21 for the user to hold, so that the cleaner 100 has better portability.
  • a trigger member 22 electrically connected to the function selection switch 29 and used in conjunction with the function selection switch 29 is disposed on the handle 21, and the trigger member 22 has a reset function, that is, when the trigger member 22 is pressed, it can automatically bounce. Reset.
  • a return spring is provided between the trigger member 22 and the inner wall of the handle 21.
  • the battery pack 23 is mounted on the body 20 and is capable of supplying power to the motor to cause the cleaner 100 to perform a vacuuming operation.
  • the vacuum cleaner 100 can be connected to an external AC power source through a power cord 25, and after the power cord 25 is connected to an external AC power source, the battery pack 23 can be charged, and the vacuum cleaner 100 can also be activated for vacuuming. It can be seen that both the battery pack 23 and the external AC power source can serve as the power source for the cleaner 100.
  • the first power tool 1 and the second power tool 100 have or are connected to separate power sources, respectively, so as to avoid the problem of insufficient voltage due to the same power supply. That is, the first power tool 1 can also be powered by a battery pack or an AC power source. When the first power tool 1 and the second power tool 100 are both powered by a battery pack, the two are respectively provided with independent battery packs. When the power is supplied, it is preferable to connect the two to different power outlets respectively, so as to avoid a voltage division between the two to cause a voltage shortage.
  • the function selection switch 29 is disposed on the body 20 to be connected to the power source, and has four gear positions of opening, closing, automatic, and triggering, and the function selection switch 29 is operable to switch between the four gear positions. Moreover, corresponding to the three gear positions of the closing, the automatic and the triggering, the vacuum cleaner 100 has a continuous vacuuming function, a self-starting vacuuming function and a triggering vacuuming function.
  • the cleaner 100 When the function selection switch 29 is in the off position, the cleaner 100 cannot be activated, it is completely disconnected from the power source, and the user can safely disassemble or replace the operation of the battery pack 23.
  • the vacuum cleaner 100 When the function selection switch 29 is in the closed gear position, the vacuum cleaner 100 is in the continuous vacuuming function state, that is, the vacuum cleaner 100 continues to perform the vacuuming operation after starting, and is suitable for the user's needs.
  • the vacuuming work is performed for a relatively large area, or the workpiece is continuously processed using the first power tool 1, or the user needs to use the first power tool 1 very frequently during the work, and the vacuum cleaner 100 performs continuous uninterrupted operation.
  • the vacuuming work can prevent the vacuum cleaner 100 from starting frequently, that is, saving electric energy and prolonging the service life.
  • the cleaner 100 When the function selection switch 29 is in the automatic position, the cleaner 100 is in the self-starting suction function state, which will automatically start or stop the operation by sensing the vibration generated by the first power tool 1 after starting. At this time, the user only needs to operate the first power tool 1 to process the workpiece without the user's additional operation to control the vacuum cleaner 100, which brings convenience to the user, and senses the vibration generated when the first power tool 1 operates by the vacuum cleaner 100. Therefore, the vacuum cleaner 100 and the first power tool 1 have a very good working consistency, that is, when the first power tool 1 is started, the vacuum cleaner 100 starts the work immediately.
  • the self-starting dust collecting function is suitable for the vacuum cleaner 100 to be used in combination with the first power tool 1.
  • the setting control module 35 controls the vacuum cleaner 100 to be self-starting, so that the user does not need to frequently operate the vacuum cleaner 100.
  • the first power tool 1 and the vacuum cleaner 100 have better working consistency, so that the vacuum cleaner 100 can timely remove the dust or debris generated by the first power tool 1.
  • the cleaner 100 When the function selection switch 29 is in the trigger position, the cleaner 100 is in the state of triggering the vacuuming function, and the user can carry and control the vacuum cleaner 100 to start or stop the operation.
  • the function selection switch 29 after the function selection switch 29 is selected to the trigger position, whether the vacuum cleaner 100 is activated or not is controlled by the trigger member 22, that is, when the user presses the trigger member 22, the vacuum cleaner 100 Start immediately, and release the trigger 22, the vacuum cleaner 100 will immediately stop working.
  • the other hand needs to hold the dust suction pipe 10 to align the area that needs to be vacuumed. If the vacuum cleaner 100 cannot be started and stopped by the single-handle and the vacuum cleaner 100 is started, the user needs to loosen the dust suction pipe 10, start the vacuum cleaner 100, and then hold the dust suction pipe 10 for vacuuming work. After the current area is finished vacuuming, It is necessary to loosen the dust suction pipe 10 again to close the vacuum cleaner 100, and repeat the above operation when moving to another area to be vacuumed, so that the vacuuming work is very cumbersome; of course, the user can also make the vacuum cleaner 100 directly in the vacuum state.
  • the vacuum cleaner 100 is in a state of being vacuumed in the process of moving the user to the next area.
  • the electrical energy of the battery pack 23 Therefore, in the present embodiment, by providing the trigger member 22 on the handle 21 to control the start or stop of the vacuum cleaner 100 only when the function selection switch 29 is in the trigger position, the user can carry and control the vacuum cleaner 100 by hand. Starting or stopping the work, the user can conveniently start the vacuum cleaner 100 when vacuuming in multiple areas, and when moving between the areas, the trigger member 22 can be released to stop the vacuum cleaner 100, and the battery pack is not consumed during the movement. 23 electric energy.
  • the vacuum cleaner 100 has a very wide applicability by providing the continuous vacuuming function, the self-starting vacuuming function, and the triggering vacuuming function. Furthermore, by setting a function selection switch 29, the vacuum cleaner 100 is controlled to switch between functional states, making the user's operation very simple and convenient.
  • control module 35 can control the cleaner 100 to operate through the electronic switch 30 when the function selection switch 29 of the cleaner 100 is in the automatic gear position, the description is defaulted to the function in the description of the operation of the control module 34 for controlling the cleaner 100.
  • the selector switch 29 is in the automatic gear position.
  • the vacuum cleaner 100 may not have the function selection switch 29, and the power supply or the non-energization of the electronic switch 30 may be started or stopped, and the vacuum cleaner 100 may be operated only under the control of the control module 35.
  • the electronic switch 30 is connected to the function selector switch 29 or integrated in the function selector switch 29.
  • the function selection switch 29 is switched to the automatic gear position, whether or not the vacuum cleaner 100 performs the vacuuming operation is controlled by the energization or non-energization of the electronic switch 30.
  • the electronic switch 30 is energized, the electrical energy of the power source can enter the motor to energize the motor to begin operation.
  • the electronic switch 30 is not energized, the motor cannot obtain power from the power source and cannot be started.
  • the electronic switch 30 is a triode or a relay.
  • the control module 35 is disposed on the vacuum cleaner 100 and is capable of detecting vibrations generated when the first power tool 1 is operated to automatically control the second power tool 100 to be turned on or off.
  • the control module 35 is electrically connected to the electronic switch 30, and by controlling the electronic switch 30 to be energized or not, so that when the function selection switch 29 is in the automatic gear position, the body 20 can be controlled by the electronic switch 30. Whether to do the vacuuming work.
  • the vibration causes the medium adjacent to the first power tool 1 to vibrate together, such as air or the dust suction pipe 10 connected to the first power tool 1.
  • the control module senses vibration of the medium by sensing
  • the electronic switch 30 is energized or de-energized to automatically control whether the cleaner 100 performs the vacuuming operation.
  • the control module 35 is a sound control module 40 that automatically controls whether the cleaner 100 operates according to a sound signal generated by sensing the vibration. Since the vibration of the first power tool 1 generates a sound signal, and the sound signal is transmitted in the form of sound waves, the sound signal is sensed by the sound control module 40 to indirectly realize the detection of the vibration generated by the first power tool 1, This makes it possible to control the operation of the cleaner 100 in accordance with the detection of the vibration of the first electric power tool 1.
  • the sound signal generated by the vibration of the first power tool 1 after starting is its working sound signal, that is, the working sound signal may be a sound signal generated when the motor rotates, or the first power tool 1 is processing the workpiece.
  • the sound control unit 40 controls the vacuum cleaner 100 according to the sound signals mixed and superimposed by the sound control module 40 to realize the processing of the first power tool 1 when the sound signal is emitted.
  • the cleaner 100 automatically starts working under the control of the sound control module 40.
  • the sound control module 40 is configured to detect the working sound signal, the position of the cleaner 100 is flexible, and it may be located on the body 20 or in the position of the dust suction pipe 10 near the first power tool 1. In the embodiment, the sound control module 40 is disposed on the top of the body 20 of the cleaner 100 and close to the side where the dust suction pipe is installed. At this time, the sound control module 40 can accurately sense the first power tool 1 The working sound signal is used to control the vacuum cleaner 100 to start work.
  • the electronic switch 30 can be integrated in the sound control module 40 and electrically connected to the function selection switch 29; the electronic switch 30 can also be disposed in the function selection switch 29 and electrically connected to the sound control module 40. .
  • the sound control module 40, the electronic switch 30, and the function selection switch 29 can also be mounted on a single circuit board, and connected to each other by the circuit of the circuit board.
  • the sound control module 40 includes a sound sensor 41, a signal amplifying circuit 42, and a comparator 43.
  • the sound sensor 41 is for sensing a sound signal and converting the sound signal into a sensing signal.
  • the sound signal When the sound signal is transmitted in the medium, it is in the form of sound waves, and the sound sensor 41 realizes by sensing the sound wave and outputting the analog signal of the frequency and period of the simulated sound wave. Convert a sound signal into an electrical signal.
  • the sound sensor 41 may be a capacitive sound sensor or a magnetoelectric sound sensor, preferably it is a capacitive sound sensor.
  • the sound sensor 41 is located on the outer surface of the body 20, at which time the sound sensor 41 easily senses the sound signal.
  • the sound sensor 41 is disposed on the top of the body 20 and exposed to the outside of the body 20, and when the cleaner 100 is in operation, the sound sensor 41 is located on the side of the cleaner 100 close to the first power tool 1, and is thus disposed such that The sound sensor 41 senses the operational sound signal of the first power tool 1 more accurately.
  • the signal amplifying circuit 42 is electrically connected to the sound sensor 41, receives the sensing signal, and amplifies the sensing signal by a fixed multiple. Since the sensing signal generated by the sound sensor 41 is weak, the sensing signal needs to be amplified before further processing.
  • the comparator 43 is used to implement the threshold function, that is, to set a certain limit for starting the vacuum cleaner 100.
  • the comparator 43 is capable of receiving the sensing signal and is capable of controlling the electronic switch 30 to be unenergized or energized.
  • the comparator 43 is electrically connected to the signal amplifying circuit 42 and the electronic switch 30, respectively, and has a first input terminal and a second input terminal and an output terminal.
  • the first input terminal is connected to the signal amplifying circuit 42 and receives the sensing signal amplified by the signal amplifying circuit 42.
  • the second input is coupled to a reference voltage Vcc for comparison with the voltage of the sensed signal.
  • the output is connected to an electronic switch 30.
  • the comparator 42 compares the voltage of the first input end with the second input end, if the The voltage of the first input terminal is higher than the voltage of the second input terminal, and a high voltage is outputted to the electronic switch 30 at the output end to energize the electronic switch 30, thereby automatically controlling the startup of the vacuum cleaner 100, that is, realizing
  • the second power tool 100 is activated in response to activation of the first power tool 1.
  • the output terminal outputs a low voltage, and the electronic switch 30 is not energized, thereby stopping the second power tool 100.
  • the reference voltage Vcc input to the second input terminal can be set to different sizes according to different needs.
  • the second input terminal is connected to an adjustable resistor, so that the adjustment can be conveniently performed to the a reference voltage Vcc input to the second input terminal, thereby implementing a base input to the second input terminal according to different usage environments
  • the quasi-voltage Vcc is different.
  • the comparator 43 compares the amplified sensing signal with the reference voltage Vcc, and the amplification factor of the sensing signal by the signal amplifying circuit 42 is fixed, the voltage of the sensing signal after being amplified Whether it is greater than the reference voltage Vcc depends on the intensity of the sensing signal emitted by the sound sensor 41, and the intensity of the sensing signal is determined by the size of the sound in the use environment, so when the reference voltage Vcc is high, only the sound in the environment is used.
  • the voltage of the sensing signal is relatively larger than the reference voltage Vcc. Therefore, by adjusting the magnitude of the resistance of the adjustable resistor, the level of the reference voltage input to the second input terminal is controlled, and the vacuum cleaner 100 can be implemented. It can be set to different starting conditions depending on the size of the sound in the environment.
  • the vacuum cleaner 100 can start the operation according to the sound signal of a specific decibel, that is, when the comparator 43 determines that the voltage of the first input terminal is equal to the voltage of the second input terminal, the electronic switch 30 is energized.
  • the vacuum cleaner only activates when a sound signal of a fixed size is sensed, so that the vacuum cleaner 100 can be activated without being easily disturbed by other sound signals in the environment.
  • the signal amplifying circuit 42 can be integrated in the sound sensor 41 or the comparator 43, so that the sound sensor 41 or the comparator 43 has a function of signal amplification.
  • the vacuum cleaner 100 may not have the comparator 43.
  • the comparator 43 is connected to the electronic switch 30.
  • the sound sensor 41 senses the sound signal
  • the sensed signal is amplified by the signal amplifying circuit 42 and output to the electronic switch 30.
  • the electronic switch 30 receives the sensing signal and is energized, the vacuum cleaner 100 starts the vacuuming operation.
  • This arrangement makes the first power tool 1 and the cleaner 100 more consistent.
  • the comparator 43 is integrated in the sound sensor 41, the sound sensor 41 is directly connected to the electronic switch 30, and the electronic switch 30 is controlled to be energized or not energized by whether or not the sound sensor 41 emits a working sound signal.
  • the sound control module 40 may be provided with a delayed start function, and the sound control module 40 activates the cleaner 100 to operate only after the sensed sound signal continues for a period of time.
  • the sound control module 40 may have a counter, that is, when the sound signal is sensed, the counter starts counting, and if the sound signal continues, the counter continues to count, and when a predetermined time length is reached, the sound control module 40 controls The electronic switch 30 is energized to activate the vacuum cleaner 100, if during the counter counting, the sound signal is stopped and the counter is not reached During the preset time length, the counter stops counting and clears when the sound signal is sounded again, and the sound control module 40 does not control the electronic switch 30 to be energized.
  • the sound control module 40 controls the electronic switch 30 to be energized. For example, when performing a cutting operation, the sound signal of the saw blade cutting workpiece or the sound signal of the motor will continue for a period of time.
  • the vacuum cleaner 100 is activated, and a sound signal similar to speaking or tapping does not activate the vacuum cleaner 100, thereby enabling the vacuum cleaner 100 to be activated without being easily disturbed by other sound signals in the environment.
  • the sound control module 40 immediately controls the electronic switch 30 to be de-energized, thereby realizing that the cleaner 100 is automatically turned off.
  • the sound control module 40 and the electronic switch 30 form a voice control switch to control the operation of the vacuum cleaner 100, so that the second power tool 100 can be activated in response to the activation of the first power tool 1, and the first power tool 1 and the second electric device are enabled. While the tool 100 has a good working consistency, the first power tool 1 and the second power tool 100 can respectively have different power sources, thereby avoiding the problem that the voltage of the two power sources is insufficient, which brings the user's work. Great convenience.
  • a second electric power tool 200 according to a second embodiment of the present invention is provided.
  • the second electric power tool 200 is a vacuum cleaner 200.
  • the second power tool 200 is substantially the same as the functional structure of the power tool 100 according to the first embodiment of the present invention.
  • the same component numbers are the same as those of the first embodiment, and the differences are as follows: Please refer to FIG. 1 together.
  • the control module 35 is a vibration control module 46 disposed on the cleaner 200.
  • the vibration control module 46 directly senses the vibration generated by the first power tool 1 after starting to automatically control the operation of the second power tool 200.
  • the vibration control module 46 includes: a vibration sensor 47, a signal amplifying circuit 42, and a comparator 43.
  • the dust suction pipe 10 has a tool connection end 45 to which the first power tool 1 is attached, and the vibration sensor 47 is located inside the dust suction pipe 10 adjacent to the tool connection end 45. That is, after the dust suction pipe 1 is connected to the first power tool 1, the vibration sensor 47 is located in the dust suction pipe 10 adjacent to the first The position of a power tool 1. Therefore, the distance from the first power tool 1 is very close. When the first power tool 1 is in operation, vibration is generated and the vibration pipe 10 connected thereto is vibrated together, since the vibration sensor 47 is disposed in the dust suction pipe 10. The position of the first power tool 1 is such that the vibration sensor 47 can accurately sense the vibration and output a sensing signal.
  • the vibration sensor 47 After the vibration sensor 47 senses the vibration generated when the first power tool 1 operates, the sensing signal is waveform-oscillated, and the vibration amplitude of the first power tool 1 is increased, and the vibration sensor 47 outputs the sensing. The higher the voltage of the signal.
  • the signal amplifying circuit 42 is connected to the vibration sensor 47, and amplifies the sensing signal by a certain multiple and outputs it to the electronic switch 30, thereby energizing the electronic switch 30 to start the operation of the cleaner 200.
  • the vibration sensor 47 When the vibration sensor 47 senses the vibration generated when the power tool 1 is in operation, it outputs a sensing signal, and the signal amplifying circuit 42 receives the sensing signal and amplifies it to the electronic switch 30 to energize the electronic switch 30 to make the vacuum cleaner 200 starts working; during the operation of the vacuum cleaner 200, when the vibration is stopped, the vibration sensor 47 no longer outputs a sensing signal, causing the electronic switch 30 to lose the voltage reference without energizing, so that the cleaner 200 stops working.
  • the vibration control module 46 may be provided with a comparator, which is provided in the first embodiment.
  • the comparator 43 has the same functional structure and will not be repeatedly described herein. Therefore, when the voltage of the sensing signal is greater than the voltage reference, the comparator 43 outputs the voltage control electronic switch 30 to energize the vacuum cleaner 200 to start the operation. When the voltage of the sensing signal is less than the voltage reference, the comparator 43 When the low voltage is output, the electronic switch 30 is not energized, and the vacuum cleaner 200 is stopped.
  • the vibration control module 46 can further control whether the electronic switch 30 is energized by directly sensing the vibration generated by the first electric power tool 1 after starting, thereby automatically controlling whether the vacuum cleaner 200 operates.
  • the vibration sensor 47 may be sealed.
  • the vibration sensor 47 may be sealed in the side wall of the dust suction pipe 10.
  • the arrangement enables the vibration sensor 47 to more accurately sense the vibration generated when the first power tool 1 operates, so that the vibration control module 46 can more accurately control the startup of the cleaner 200, so that the cleaner 200 and the first power tool 1 are better.
  • the vibration control module 46 can also be integrally disposed in the dust suction pipe 10 adjacent to the tool mounting end 45, and sealed in the side wall of the dust suction pipe 10, and electricity is provided between the vibration control module 46 and the electronic switch 30.
  • the wire connection allows the space setting in the body of the vacuum cleaner 200 to be more flexible.
  • the vibration control module 46 in this embodiment may also be replaced with the sound control module 40 in the first embodiment, and the sound sensor 41 or the entire sound control module 40 may also be disposed in the dust suction pipe 10 by using the above-described scheme. Moreover, it can also be enclosed in the side wall of the dust suction pipe 10. Since the sound sensor 41 is disposed closer to the first power tool 1, the sound control module 40 can more accurately control the startup of the vacuum cleaner without being disturbed by environmental noise. .
  • control module 35 can also include the sound control module 40 and the vibration control module 46, and control the second electric tool by mutual cooperation between the two modules.
  • the second power tool can start working only when two modules simultaneously output a signal for controlling the start of the second power tool, otherwise it is considered that there is other factor interference, and the setting improves the anti-interference of the control module 35. Sex.
  • the second power tool 300 provided by the third embodiment of the present invention has substantially the same functional structure as the second power tool 100 provided by the first embodiment.
  • the embodiment is the same, and the difference is:
  • the second power tool 300 is the vacuum cleaner 300
  • the control module 35 of the cleaner 300 is the sound control module 50.
  • the sound control module 50 includes a sound sensor 41, a signal amplifying circuit 42, an analog/digital conversion circuit 48, a memory 49, and a processor 51.
  • the analog/digital conversion circuit 48 is electrically connected to the signal amplifying circuit 42, which converts the amplified analog signal of the signal amplifying circuit 42 into a digital signal. It can be understood that the analog/digital conversion circuit 48 can be independent of the sound sensor 41 or integrated into the sound sensor 41, and can be selected by a person skilled in the art according to actual needs.
  • a preset condition is stored in the memory 49.
  • the currently sensed sound signal is a working sound signal of the first power tool 1, that is, the first power tool 1 has started to work. It is necessary to activate the vacuum cleaner 300 for vacuuming work.
  • the preset condition is at least one characteristic value, such as frequency, amplitude, period, peak value, The trough value or a combination of any of them.
  • the preset condition is a frequency and an amplitude. If the frequency and amplitude of the current digital signal are the same as the frequency and amplitude of the preset condition, the currently sensed sound signal is considered to be the first power tool. 1
  • the working sound signal is sent.
  • the preset condition is set, the corresponding situation of the working sound signal of the first power tool 1 cooperated with it, that is, the sound signal of the motor of the first power tool 1 in the working state and the sound signal of the processed workpiece are superimposed.
  • the feature value of the sound signal is taken as the preset condition.
  • the characteristic value is not limited to the sound generated by the sound signal selected from the motor and the sound signal of the processed workpiece, or may be only the sound signal of the motor or the sound signal of the processed workpiece.
  • the preset conditions may have other setting manners, and other changes may be made by those skilled in the art, but the functions and effects thereof are the same as or similar to the present invention, and should be covered by the present invention.
  • the processor 51 is electrically connected to the analog/digital conversion circuit 48 and the memory 49, and receives the digital signal, and reads the preset condition from the memory 49, and analyzes whether the digital signal satisfies the preset condition.
  • the processor 51 controls the electronic switch 30 to be powered on if the preset condition is met.
  • the processor 51 identifies, from the digital signal, the frequency and amplitude of the sound signal when the motor rotates, and the frequency and amplitude are compared with the preset condition.
  • the control electronic switch 30 Comparing the frequency and the amplitude, if they are the same, the control electronic switch 30 is energized to cause the vacuum cleaner 300 to start working; when the sound signal is stopped, the sensing signal is no longer generated, and the processor 51 controls the electronic switch 30. The power is not supplied, so that the vacuum cleaner 300 automatically stops responding to the closing of the first power tool 1.
  • the processor 51 controls the electronic switch 30 to be powered on, the digital signal is continuously received, and it is continuously determined whether the digital signal satisfies the preset condition, and if so, the control electronic switch 30 remains powered, if the number If the signal does not satisfy the preset condition, the processor 51 controls the electronic switch 30 to be de-energized, and the control electronic switch 30 is energized until the digital signal meets the preset condition again.
  • the sound control module 50 in the present embodiment can make the operation of the vacuum cleaner 300 and the first power tool 1 better, and determine whether the working sound signal sent by the first power tool 1 is determined by setting a preset condition, so that the vacuum cleaner 300 is provided. It is free from external noise and improves the convenience of users.
  • a filter circuit 53 may be provided between the sound sensor 41 and the analog/digital conversion circuit 48.
  • the filter circuit 53 is capable of filtering the analog signal generated by the sound sensor 41 to make the analog signal entering the analog/digital conversion circuit 48 more regular, thereby causing the digital signal entering the processor 51 after being converted by the analog/digital conversion circuit 48. More orderly.
  • the filter circuit 53 is electrically connected between the signal amplifying circuit 42 and the analog/digital conversion circuit 48.
  • a sampling circuit 55 may be provided between the sound sensor 41 and the analog/digital conversion circuit 48.
  • the sampling circuit 55 is a sampling circuit that samples the analog signal generated by the acoustic sensor 41 every interval of time and transmits the collected analog signal to the analog/digital conversion circuit 48.
  • the analog/digital conversion circuit 48 simply converts the acquired analog signal into a digital signal and transmits it to the processor 51, and the processor 51 only needs to analyze the data transmitted by the analog/digital conversion circuit 48, thereby reducing the simulation/ The digital conversion circuit 48 and the workload of the processor 51, in turn, reduce the power consumption.
  • the sampling circuit 55 is electrically connected between the filter circuit 53 and the analog/digital conversion circuit 47. At this time, the sampling circuit 55 samples the analog signal passing through the filter circuit 53 at intervals, and samples the result. It is transmitted to the analog/digital conversion circuit 48.
  • the vacuum cleaner 300 can be provided with a learning function, that is, the vacuum cleaner 300 can store the frequency, amplitude, period, peak value, trough value or any combination thereof of the currently sensed sound signal to The memory is used as the preset condition.
  • the processor 51 by setting a button on the vacuum cleaner 300, when the button is triggered, the processor 51 continuously receives the digital signal transmitted by the analog/digital conversion circuit 48, when the user triggers the button again. At this time, the processor 51 stores information such as the frequency and amplitude of the digital signal before the button is triggered again to the memory 49 as one of the preset conditions.
  • the power tool is a sander.
  • the processor 51 When the user presses the button of the vacuum cleaner 300 and starts the sander operation, the processor 51 continuously receives the digital signal converted by the analog/digital conversion circuit 48. When the user presses the button again, the processor 51 stores information such as the frequency and amplitude of the digital signal received before the button is pressed into the memory 49, at which time the cleaner 300 ends the learning, if the sand Sound control module when the light machine is not turned off or started again The vacuum cleaner 300 is controlled to operate by sensing the working sound signal of the sander and satisfying the preset condition.
  • the sound sensor 41 in this embodiment may also be replaced by a vibration sensor, and the corresponding preset condition may be a frequency, an amplitude, a period, a wave peak, a valley value, or a waveform sensing signal output by the vibration sensor. Any combination of several. With this setting, it is possible to directly recognize whether the vibration currently being subjected to it is generated after the first power tool 1 is started, so that it is not interfered by other factors, and the vacuum cleaner is activated only when the first power tool 1 is operated.
  • the sound sensor 41 may also have the learning function described above, that is, only the frequency, amplitude, period, peak value, valley value or the waveform sensing signal output by the current vibration sensor needs to be Any combination of these can be stored in the memory 49 in the above manner as a preset condition, so that the vacuum cleaner can be used in combination with different power tools.
  • a fourth embodiment of the present invention provides a method for starting a combination of a power tool according to the above embodiment, wherein the starting method is: connecting the first power tool and the second power tool to different power sources; a first power tool, the second power tool automatically activated in response to activation of the first power tool; and when the first power tool is turned off, the second power tool automatically responds to the first power tool Close and stop working.
  • the step of connecting the first power tool and the second power tool to different power sources can be understood as connecting the first power tool and the second power tool to different AC power sources, respectively, or separately.
  • the battery pack, or one of the batteries is connected to the AC power source, and the other is installed with the battery pack.
  • the above arrangement is no longer exhaustive, and only the first power tool and the second power tool need to be powered by different power sources. .
  • the starting method enables the user to operate the first power tool only by operating the first power tool without performing any operation on the second power tool.
  • the second power tool can also be automatically activated, which brings great convenience to the user.
  • the second power tool automatically starts in response to the activation of the first power tool, for example, setting a wireless signal transmission in the first power tool.
  • a wireless signal receiving device is disposed on the second power tool.
  • the wireless signal transmitting device sends a signal
  • the wireless signal receiving device receives the signal.
  • the second power tool starts the work immediately after receiving the signal by the wireless signal receiving device, and can also be activated by the second power tool in response to the activation of the first power tool.
  • the combination of the power tool provided in the present invention is started by causing the second power tool to automatically respond to the activation of the first power tool, thereby realizing that after the user activates the first power tool to work,
  • the two power tools are automatically activated without additional operation by the user, which brings convenience to the user.
  • the first power tool and the second power tool respectively have independent power sources, the two are not affected by the voltage during the working process, thereby avoiding the problem that the power supply is insufficient due to the sharing of one power source.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Description

电动工具的组合及其启动方法 技术领域
本发明涉及一种电动工具的组合。
本发明还涉及一种电动工具的组合的启动方法。
背景技术
用户在日常的工作过程中， 经常配合使用两种以上的电动工具以 加工工件。 比如在使用切割工件过程中， 需要启动切割机的同时， 为 了避免切割引起的粉尘污染环境并损害身体健康，往往将切割机与吸 尘器一同使用； 或者， 用户在光线有些暗淡的环境需要进行打磨工件 时， 需要同时使用工作照明灯和砂光类的电动工具； 或者， 当用户使 用电木铣加工工件的过程中， 为了避免碎屑阻挡视线， 而同时使用吹 风机将碎屑吹走等等。
现有技术中， 用户面对需要同时使用两个以上电动工具时， 往往 需要逐个进行控制， 比如在光线有些暗淡的场合进行切割工作， 需要 首先打开工作照明灯， 然后打开吸尘器， 接着再打开切割机进行切割 工作， 当切割完成时， 需要关闭电动工具， 关闭吸尘器， 关闭工作照 明灯， 如此使切割工作变得非常繁瑣。
发明内容
有鉴于此， 有必要提供一种便于用户控制的电动工具的组合及其 启动方法。
为实现上述目的， 本发明的技术方案是： 一种电动工具的组合， 包括： 分别具有独立电源的第一电动工具和第二电动工具； 所述第二 电动工具能够自动响应所述第一电动工具的启动而启动。
优选地，所述第二电动工具能够自动响应所述第一电动工具的关 闭而停止工作。
优选地，所述第二电动工具具有通过检测所述第一电动工具在启 动后产生的振动， 以自动控制启动所述第二电动工具的控制模块。
优选地， 所述控制模块包括接收所述振动产生的声音信号， 以自 动控制启动所述第二电动工具的声音控制模块。
优选地，所述第二电动工具包括控制所述第二电动工具启动的开 关， 所述声音控制模块包括： 将感测到的声音信号转化成感测信号并 输出的声音传感器； 与所述声音传感器以及所述开关连接， 并将所述 感测信号放大并输出给所述开关的信号放大电路。
优选地，所述声音控制模块还包括电性连接于所述信号放大电路 与所述开关之间的比较器，所述比较器将所述感测信号的电压与一个 预先设置的基准电压比较， 当所述感测信号的电压大于所述基准电压 时， 所述声音控制模块控制所述开关通电。
优选地， 声音控制模块还包括能够计时的延迟电路， 仅当所述声 音传感器输出的感测信号持续达到预设时间长度时，所述声音控制模 块控制开关通电。
优选地， 所述声音控制模块包括： 声音传感器， 将感测到的声音 信号转化成模拟信号； 信号放大电路， 与所述声音传感器电性连接， 并将所述感测信号按照固定倍数放大； 模拟 /数字转换电路， 其与所 述信号放大电路电性连接，接收所述感测信号并将所述模拟信号转换 成数字信号； 存储器， 存储有预设条件； 处理器， 与所述模拟 /数字 转换电路以及所述存储器电性连接， 接收所述数字信号， 并读取所述 预设条件， 所述数字信号符合预设条件时， 则所述处理器控制所述第 二电动工具启动。
优选地， 所述预设条件为至少一个所述声音信号的特征值， 该特 征值为频率、 振幅、 周期、 波峰值、 波谷值或其中任意几个的组合。
优选地，所述声音控制模块还包括电性连接于所述声音传感器和 所述模拟 /数字转换电路之间的滤波电路。
优选地，所述第二电动工具可操作的将当前感测到的声音信号的 频率、 振幅、 周期、 波峰值、 波谷值或其任意组合存储至所述存储器， 作为所述预设条件。
优选地， 所述控制模块包括直接检测所述振动， 以自动控制启动 所述第二电动工具的振动控制模块。
优选地，所述第二电动工具包括控制所述第二电动工具启动的开 关，所述振动控制模块包括检测所述振动并输出感测信号的振动传感 器； 与所述振动传感器以及所述开关连接， 并将所述感测信号放大后 输出给所述开关使所述开关通电的信号放大电路。 优选地，所述振动控制模块还包括电性连接于所述信号放大电路 与所述开关之间的比较器，所述比较器将所述感测信号的电压与一个 预先设置的基准电压比较，仅当所述感测信号的电压大于等于所述基 准电压时， 所述振动控制模块控制所述开关通电。
根据权利要求 1 至 1 4任一所述电动工具的组合， 其特征在于： 所述第一电动工具选自砂光机、 台锯、 斜断锯、 电圆锯、 曲线锯、 角 磨、 电木铣、 电锤、 电钻、 电刨、 砂带机、 台式曲线锯或云石机中的 —个 o
优选地， 所述第二电动工具选自吸尘器、 喷水枪、 吹风机或便携 式工作照明灯中的一个。
优选地， 所述独立电源为电池包。
优选地， 所述第二电动工具为吸尘器， 且所述吸尘器还包括： 作 为所述第二电动工具的电源的电池包； 进行吸尘工作的机体； 安装在 所述机体上的吸尘管，所述吸尘管具有与所述第一电动工具连接的工 具连接端。
优选地，所述控制模块设置在所述吸尘管内临近所述工具连接端 的位置。
优选地， 所述控制模块密封在所述吸尘管的侧壁内。
与现有技术相比， 本发明中提供的电动工具的组合， 通过使第二 电动工具自动响应第一电动工具的启动而启动，从而实现当用户启动 第一电动工具进行工作之后， 第二电动工具无需用户额外的操作而自 动启动， 给使用者带来了便利。 再者， 由于第一电动工具和第二电动 工具分别具有独立的电源，从而使二者工作过程中不会受到电压的影 响， 从而避免了二者共用一个电源导致电压不足的问题。
本发明还提供一种电动工具的组合的启动方法，所述电动工具的 组合包括第一电动工具和第二电动工具， 所述启动方法包括： 启动所 述第一电动工具，所述第二电动工具自动响应所述第一电动工具的启 动而启动。
优选地， 所述启动方法还包括， 在启动所述第一电动工具之前， 所述第一电动工具和所述第二电动工具分别连接不同的电源。
优选地， 所述第一电动工具被关闭时， 所述第二电动工具自动响 应所述第一电动工具的关闭而停止工作。
与现有技术相比， 本发明的电动工具的组合的启动方法， 实现用 户启动第一电动工具进行工作之后， 第二电动工具无需用户额外的操 作而自动启动， 给使用者带来了便利。
本发明提供一种吸尘器， 用于与电动工具配合使用， 所述吸尘器 包括： 能够进行吸尘工作的机体； 安装在所述机体上的吸尘管； 控制 所述机体是否工作的开关；所述吸尘器具有通过检测所述电动工具在 启动后产生的振动， 以控制所述开关通电或不通电的控制模块。
优选地， 所述控制模块为感测所述振动产生的声音信号， 以控制 所述开关通电或不通电的声音控制模块。
优选地， 所述声音控制模块包括： 将感测到的声音转化成感测信 号并输出的声音传感器； 与所述声音传感器以及所述开关连接， 并将 所述感测信号放大并输出给所述开关并使所述开关通电的信号放大 电路。
优选地，所述声音控制模块还包括电性连接于所述信号放大电路 与所述开关之间的比较器，所述比较器将所述感测信号的电压与一个 预先设置的基准电压比较， 当所述感测信号的电压大于所述基准电压 时， 控制所述开关通电。
优选地， 声音控制模块还包括能够计时的延迟电路， 仅当所述声 音传感器输出的感测信号持续达到一预设时间长度时，所述声音控制 模块控制开关通电。
优选地，所述声音传感器位于所述机体顶部靠近安装所述吸尘管 的一侧。
优选地， 所述声音控制模块包括： 声音传感器， 其将感测到的声 音信号转化成模拟信号； 信号放大电路， 其与所述声音传感器电性连 接， 并将所述感测信号按照一固定倍数放大； 模拟 /数字转换电路， 其与所述信号放大电路电性连接，接收所述感测信号并将所述模拟信 号转换成数字信号； 存储器， 其存储有一预设条件； 处理器， 其与所 述模拟 /数字转换电路以及所述存储器电性连接， 并接收所述数字信 号， 读取所述预设条件， 并分析所述数字信号是否符合预设条件， 如 果符合所述预设条件， 则所述处理器控制所述开关通电。 优选地， 所述预设条件为至少一个特征值， 该特征值为频率、 振 幅、 周期、 波峰值、 波谷值或其中任意几个的组合。
优选地，所述声音控制模块还包括电性连接于所述声音传感器和 所述模拟 /数字转换电路之间的滤波电路。
优选地，所述吸尘器可操作的能够将当前感测到的声音信号的频 率、 振幅、 周期、 波峰值、 波谷值或其任意组合存储至所述存储器， 作为所述预设条件。
优选地，所述控制模块为直接检测所述振动以控制所述开关通电 或不通电的振动控制模块。
优选地，所述振动控制模块包括检测所述振动并输出感测信号的 振动传感器； 与所述振动传感器以及所述开关连接， 并将所述感测信 号放大后输出给所述开关使所述开关通电的信号放大电路。
优选地，所述振动控制模块还包括电性连接于所述信号放大电路 与所述开关之间的比较器，所述比较器将所述感测信号的电压与一个 预先设置的基准电压比较，仅当所述感测信号的电压大于等于所述基 准电压时， 控制所述开关通电。
优选地， 所述吸尘管具有连接所述电动工具的工具连接端， 所述 控制模块设置在所述吸尘管内临近所述工具连接端的位置。
优选地， 所述控制模块密封在所述吸尘管的侧壁内。
与现有技术相比， 本发明的吸尘器通过设置控制模块感测电动工 具启动后产生的振动， 控制所述吸尘器工作， 从而使所述吸尘器与电 动工具之间可以具有较好的工作一致性， 并且吸尘器具有独立的开 关， 使其与电动工具可以连接到不同的电源， 从而不会存在因吸尘器 分压致使电动工具电压不足的问题。 如此设置， 给使用者的工作带来 了便利。
本发明还揭示了一种吸尘器， 用于与电动工具配合使用， 所述吸 尘器包括： 能够进行吸尘工作的机体， 所述机体上安装有供使用者握 持的手柄； 安装在所述机体上的吸尘管； 设置在所述机体上的功能选 择开关，所述功能选择开关可操作的处于断开所述吸尘器与电源连接 的断开档位， 使所述吸尘器持续进行吸尘工作的闭合档位， 以及使所 述吸尘器通过感测第一电动工具 1 在启动后产生的振动以自动启动 或停止工作的自动档位。
优选地， 在所述手柄上安装有与所述功能选择开关电性连接的触 发件， 所述功能选择开关还具有由所述触发件控制所述吸尘器启动或 停止的触发档位。
与现有技术相比， 本发明中的所述吸尘器通过设置功能选择开 关， 以选择不同的档位， 使吸尘器能够处于不同的功能状态， 从而能 够满足用户在不同工况下的使用需求， 使本发明的吸尘器有非常广泛 的适用性。
附图说明
下面结合附图和实施方式对本发明作进一步说明。
图 1 是本发明第一实施方式提供的吸尘器的工作原理图； 图 2是图 1 中所述吸尘器的功能框图；
图 3是本发明第一实施方式提供的吸尘器的立体图；
图 4是本发明第二实施方式提供的吸尘器的立体图， 其中吸尘管 用于连接电动工具的端部被部分剖开；
图 5是本发明第三实施方式提供的吸尘器的工作原理图。
其中，
1 . 第一电动工具 40. 声音控制模块 300. 吸尘器
1 00. 吸尘器 41 . 声音传感器 48 . 模拟 /数字转换
1 0. 吸尘管 42. 信号放大电路 电路
20. 机体 43. 比较器 49. 存储器
23. 电池包 200 . 吸尘器 50. 声音控制模块
25. 电源线 45. 工具连接端 51 . 处理器
29. 功能选择开关 46. 振动控制模块 53. 滤波电路
30. 电子开关 47. 振动传感器 55. 采样电路
35. 控制模块 2. 电动工具
具体实施方式
请参见图 1， 本发明第一实施方式提供一种电动工具的组合， 包 括第一电动工具 1和第二电动工具 100， 第二电动工具 100能够自动 响应第一电动工具 1 的启动而启动。
第一电动工具 1 可以为砂光机、 台锯、 斜断锯、 电圆锯、 曲线锯、 角磨、 电木铣、 电锤、 电钻、 电刨、 砂带机、 台式曲线锯或云石机等， 当然其它电动工具也可以使用， 在此限于篇幅并不一一列举。
第二电动工具 100选自吸尘器、 喷水枪、 吹风机或便携式工作照 明灯， 在本实施方式中， 仅以第二电动工具 100为吸尘器 100为例进 行介绍， 第二电动工具 100为其他工具的情况与吸尘器基本相同， 在 此限于篇幅不再进行介绍。
请参阅图 1和图 3， 所述吸尘器 100包括： 吸尘管 10、 机体 20、 电池包 23、 电源线 25、 功能选择开关 29、 电子开关 30 以及控制模 块 35。
吸尘管 10 用于与第一电动工具 1 连接。 当第一电动工具 1 工作 时， 其产生的残渣在吸尘器 100的吸力下从吸尘管 10进入机体 20。 在本实施方式中， 第一电动工具 1 具有排尘部， 吸尘管 10直接与所 述排尘部连接。吸尘管 10的形状可以根据所述排尘部的结构而设计， 优选地， 第一电动工具 1 的排尘部呈管状， 吸尘管 10也设置成管状 并采用柔性材料制成， 如此可以将吸尘管 10 与所述排尘部套接在一 起， 从而方便使用者将吸尘管 10安装至所述排尘部。
当然， 吸尘管 10也可以不与第一电动工具 1 的排尘部连接使用。 当第一电动工具 1 进行工作时， 可以将吸尘管 10的自由端放置在第 一电动工具 1 的工作头附近， 从而实现吸尘器 100与第一电动工具 1 相配合使用， 将所述工作头在加工工件过程中产生的残渣吸走。
为了使吸尘器 100 能够与多种电动工具进行配合使用， 吸尘管 10与机体 20采用分体式制成。 吸尘管 10可以设置至少二个自由端， 其中一个自由端用于与机体 20 连接， 其余自由端可以根据不同电动 工具的需要制作成不同尺寸或形状。 当然， 根据需要可以配备多个不 同尺寸或形状的吸尘管 10， 只要其设置一个自由端用于与机体 20连 接， 其余部分的尺寸或形状可依照实际情况设计。 本领域技术人员还 可以做出其他变化， 但只要其实现的功能和效果与本发明相同或相 似， 均应涵盖于本发明保护范围内。
机体 20与吸尘管 10连接， 并能够进行吸尘工作。 机体 20 包括 马达 （图中未示出）， 安装于所述马达的风扇 （图中未示出）、 用于过 滤气体中残渣的过滤组件 （图中未示出）， 以及用于存储所述残渣的 存储箱 （图中未示出）。 当吸尘器 100工作时， 马达会带动风扇高速 旋转， 带有残渣的空气会从吸尘管 10进入机体 20， 经过所述过滤组 件过滤后， 干净的空气会排出吸尘器 100之外， 残渣和灰尘会存储在 所述存储箱内。
机体 20上设置有供用户握持的手柄 21， 以使吸尘器 100有着较 佳的便携性。 在手柄 21上设置有与功能选择开关 29电性连接， 并与 功能选择开关 29配合使用的触发件 22， 且触发件 22具有复位功能， 即当触发件 22被按下后， 其能够自动弹起复位。 在本实施方式中， 在触发件 22与手柄 21 内壁之间设置有复位弹簧。
电池包 23安装在机体 20上， 并能够向所述马达供电以使吸尘器 100进行吸尘工作。 吸尘器 100 能够通过电源线 25 连接至外部交流 电源， 并且当电源线 25连接至外部交流电源之后， 可以对电池包 23 进行充电， 同时也可以启动吸尘器 100进行吸尘工作。 由此可见， 电 池包 23和所述外部交流电源均可作为所述吸尘器 100的电源。
第一电动工具 1和第二电动工具 100分别具有或连接至独立的电 源， 从而避免二者采用相同电源供电导致电压不足的问题。 即第一电 动工具 1也可以采用电池包或交流电源供电， 当第一电动工具 1与第 二电动工具 100 均采用电池包供电时， 二者分别设置有独立的电池 包， 当二者采用交流电源供电时， 优选地， 将二者分别连接到不同的 电源插口，如此便实现避免二者之间对电源构成分压致使其中之一电 压不足。
功能选择开关 29设置在机体 20上与所述电源连接，并具有断开、 闭合、 自动和触发等四个档位， 功能选择开关 29 可操作的在所述四 个档位之间转换。 并且， 对应于所述闭合、 自动和触发等三个档位， 吸尘器 100 分别具有持续吸尘功能、 自启动吸尘功能和触发吸尘功 月匕 。
当功能选择开关 29处于所述断开档位时， 吸尘器 100无法被启 动， 其完全与电源断开， 此时用户可以安全的进行拆卸或更换电池包 23的操作。
当功能选择开关 29处于闭合档位时， 吸尘器 100处于持续吸尘 功能状态， 即吸尘器 100启动后持续进行吸尘工作， 适用于用户需要 针对相对较大的区域进行吸尘工作， 或者使用第一电动工具 1持续的 进行加工工件， 再或者用户在工作过程中需要非常频繁的使用第一电 动工具 1， 此时吸尘器 100进行连续无间断的吸尘工作， 如此可以避 免吸尘器 100频繁的启动， 即节省了电能， 又能够延长使用寿命。
当功能选择开关 29 处于自动档时， 吸尘器 100处于自启动吸尘 功能状态， 其将通过感测第一电动工具 1在启动后产生的振动， 自动 启动或停止工作。 此时， 用户仅仅需要操作第一电动工具 1进行加工 工件， 而无需用户额外的操作控制吸尘器 100， 给用户带来了便利， 并且籍由吸尘器 100感测第一电动工具 1工作时产生的振动， 从而使 吸尘器 100与第一电动工具 1之间具有非常好的工作一致性， 即当第 一电动工具 1启动后， 吸尘器 100便会立即启动工作。 所述自启动吸 尘功能适用于吸尘器 100与第一电动工具 1配合使用， 此时用户需要 断续加工工件， 而籍由设置控制模块 35控制吸尘器 100 自启动， 实 现用户无需频繁的操作吸尘器 100，并且第一电动工具 1与吸尘器 100 有着较佳的工作一致性， 实现吸尘器 100能够及时的将第一电动工具 1产生的灰尘或碎屑吸走。
当功能选择开关 29 处于所述触发档位时， 吸尘器 100处于所述 触发吸尘功能状态， 用户可单手提携并控制吸尘器 100启动或停止工 作。 在本实施方式中， 当所述功能选择开关 29 被选择至所述触发档 位后， 所述吸尘器 100 是否启动工作受控于触发件 22， 即此时用户 按下触发件 22， 吸尘器 100会立即启动， 而释放触发件 22， 吸尘器 100会立即停止工作。
当用户需要提携吸尘器 100在多个区域进行吸尘时， 由于其一只 手需要提携吸尘器 100， 而另一只手需要握持吸尘管 10 使其对准需 要进行吸尘的区域， 此时若无法通过单手提携并控制吸尘器 100启动 或停止吸尘工作， 则需要用户松开吸尘管 10， 启动吸尘器 100 然后 再握持吸尘管 10进行吸尘工作， 当前区域完成吸尘之后， 需要再次 松开吸尘管 10 关闭吸尘器 100， 当移动至另一个需要吸尘的区域时 重复上述操作， 如此使吸尘工作非常繁瑣； 当然， 用户也可以使吸尘 器 100—直处于吸尘状态， 而此时在一个区域完成吸尘工作之后， 用 户移动至下一个区域的过程中， 吸尘器 100—直处于吸尘状态会浪费 电池包 23的电能。 由此可见， 本实施方式中， 通过在手柄 21上设置 仅当功能选择开关 29处于所述触发档位时控制吸尘器 100启动或停 止工作的触发件 22， 实现用户可以单手提携并控制吸尘器 100 启动 或停止工作， 使用户在多个区域进行吸尘时能够便利的启动吸尘器 100， 并且在区域间移动时， 可以释放触发件 22以使吸尘器 100停止 工作， 实现移动过程中不会耗费电池包 23的电能。
通过设置所述持续吸尘功能、 自启动吸尘功能和触发吸尘功能， 使吸尘器 100具有非常广泛的适用性。 再者， 通过设置一个功能选择 开关 29控制吸尘器 100在功能状态之间转换， 使用户操作非常简单 便利。
由于当吸尘器 100的功能选择开关 29处于自动档位时， 控制模 块 35才能够通过电子开关 30控制吸尘器 100进行工作， 故此， 本文 在针对控制模块 34控制吸尘器 100工作的描述中， 均默认为功能选 择开关 29处于自动档位。 当然， 吸尘器 100可以不具有功能选择开 关 29， 而籍由电子开关 30的通电或不通电启动或停止工作， 此时便 可以实现吸尘器 100仅在控制模块 35的控制下工作。
电子开关 30 与功能选择开关 29 连接， 或集成在功能选择开关 29 内。 当功能选择开关 29转换至自动档位时， 籍由电子开关 30的 通电或不通电控制吸尘器 100是否进行吸尘工作。 当电子开关 30通 电时，所述电源的电能能够进入所述马达，使所述马达通电开始工作， 当电子开关 30不通电时， 所述马达无法获得所述电源的电能而无法 启动。 在本实施方式中， 电子开关 30为三极管或继电器等。
控制模块 35设置于吸尘器 100上， 能够检测第一电动工具 1工 作时发出的振动， 以自动控制启动或关闭第二电动工具 100。 在本实 施方式中， 控制模块 35与电子开关 30电性连接， 并通过控制电子开 关 30通电或不通电， 从而实现当功能选择开关 29处于自动档位时， 能够籍由电子开关 30控制机体 20是否进行吸尘工作。
由于， 第一电动工具 1在启动后会产生振动， 即工作中的所述马 达， 或者第一电动工具 1在加工工件的过程产生的振动。 所述振动会 带动第一电动工具 1相邻的介质一同振动， 比如空气或与第一电动工 具 1 连接的吸尘管 10。 所述控制模块便通过感测所述介质的振动控 制电子开关 30通电或不通电， 以实现自动控制吸尘器 100是否进行 吸尘工作。
请一并参阅图 1 和图 2， 在本实施方式中， 控制模块 35 为根据 感测所述振动产生的声音信号， 以自动控制所述吸尘器 100是否工作 的声音控制模块 40。 由于第一电动工具 1 启动后的振动会产生声音 信号， 而声音信号是以声波的形式传递， 通过设置声音控制模块 40 感测声音信号， 以间接实现检测第一电动工具 1产生的振动， 由此便 实现根据检测第一电动工具 1的振动控制吸尘器 100工作。
第一电动工具 1 在启动后的所述振动产生的声音信号为其工作 声音信号， 即所述工作声音信号可以为所述马达在旋转时发生的声音 信号， 或者第一电动工具 1在加工工件时发出的声音信号， 再或者是 二者混合叠加的声音信号， 在本实施方式中， 为声音控制模块 40根 据二者混合叠加的声音信号控制吸尘器 100， 以实现当第一电动工具 1 开始加工工件时， 吸尘器 100会在声音控制模块 40的控制下自动 启动工作。
由于声音控制模块 40 用于检测所述工作声音信号， 故设置在吸 尘器 100的位置较为灵活， 其可以位于机体 20上， 也可以位于吸尘 管 10 内靠近第一电动工具 1 的位置， 在本实施方式中， 声音控制模 块 40设置在吸尘器 100的机体 20的顶部， 并靠近安装所述吸尘管的 一侧， 此时声音控制模块 40 会能够较为准确的感测第一电动工具 1 的所述工作声音信号， 以控制吸尘器 100启动工作。
可以理解， 电子开关 30可以集成在所述声音控制模块 40内， 并 与功能选择开关 29电性连接； 电子开关 30也可以设置在功能选择开 关 29内， 并与声音控制模块 40相电性连接。 当然， 也可以将声音控 制模块 40、 电子开关 30和功能选择开关 29 —同安装在一个电路板 上， 彼此之间籍由电路板的电路进行连接。
声音控制模块 40 包括声音传感器 41、 信号放大电路 42和比较 器 43。
声音传感器 41 用于感测声音信号， 并将声音信号转化成感测信 号。 声音信号在介质中传递时， 是以声波的形式存在的， 声音传感器 41 通过感测声波， 并输出模拟声波的频率和周期的模拟信号， 实现 将声音信号转化成电信号。 声音传感器 41 可以为电容式声音传感器 或磁电式声音传感器， 优选地， 其为一个电容式声音传感器。
声音传感器 41 位于机体 20的外部表面上， 此时声音传感器 41 容易感测到声音信号。 在本实施方式中， 将声音传感器 41 设置在机 体 20的顶部并暴露于机体 20外侧， 并且当吸尘器 100工作时， 声音 传感器 41位于吸尘器 100靠近第一电动工具 1 的一侧， 如此设置， 使声音传感器 41更加准确的感测第一电动工具 1的工作声音信号。
信号放大电路 42与声音传感器 41电性连接，接收所述感测信号， 并将所述感测信号按照一固定倍数放大。 由于声音传感器 41 生成的 所述感测信号较弱， 需要对所述感测信号进行放大后， 才能进一步处 理。
比较器 43 用于实现门限功能， 即为启动吸尘器 100设置一定的 限制。 比较器 43能够接收所述感测信号， 并能够控制电子开关 30不 通电或通电。 在本实施方式中， 比较器 43分别与信号放大电路 42和 电子开关 30 电性连接， 并且其具有一个第一输入端和一个第二输入 端以及一个输出端。 所述第一输入端与信号放大电路 42连接， 接收 经过信号放大电路 42放大的感测信号。 所述第二输入端连接至一个 基准电压 Vcc， 其用于与所述感测信号的电压比较。 所述输出端与电 子开关 30连接。
当所述第一输入端接收到经过信号放大电路 42放大后的感测信 号后， 所述比较器 42会将所述第一输入端与所述第二输入端的电压 进行比较，如果发现所述第一输入端的电压高于所述第二输入端的电 压， 则在所述输出端输出一个高电压给所述电子开关 30， 使电子开 关 30通电， 如此便实现自动控制吸尘器 100启动工作， 即实现第二 电动工具 100响应第一电动工具 1的启动而启动。 当所述第一输入端 的电压低于所述第二输入端的电压， 则所述输出端输出一个低电压， 则电子开关 30不通电， 从而使第二电动工具 100停止工作。
可以理解，向所述第二输入端输入的基准电压 Vcc可以根据不同 需要， 设置成不同的大小， 优选地， 所述第二输入端连接一个可调式 电阻， 如此设置， 可以方便调节向所述第二输入端输入的基准电压 Vcc , 从而实现根据不同使用环境需要， 向所述第二输入端输入的基 准电压 Vcc不同。 由于比较器 43是针对放大后的所述感测信号与基 准电压 Vcc进行比较， 而信号放大电路 42对所述感测信号的放大倍 数是固定的， 所以经过放大后所述感测信号的电压是否大于基准电压 Vcc 取决于声音传感器 41 发出的感测信号的强度， 而该感测信号的 强度是由使用环境中声音的大小决定的， 所以当基准电压 Vcc较高， 则只有使用环境中声音相对较大， 才能够使所述感测信号的电压大于 基准电压 Vcc , 因而通过调节可调式电阻的电阻值大小， 实现控制向 所述第二输入端输入的基准电压的高低， 能够实现吸尘器 100可以根 据使用环境中声音的大小， 设置成不同的启动条件。
根据上述描述也可以实现吸尘器 100 能够根据一个特定分贝的 声音信号启动工作， 即当比较器 43 判断得出第一输入端的电压与第 二输入端的电压相等时， 则使电子开关 30 通电， 此时吸尘器仅当感 测到以固定大小的声音信号才会启动， 如此设置可以实现吸尘器 100 不会轻易受环境中其它声音信号干扰而启动工作。
当然， 信号放大电路 42 可以集成于声音传感器 41 或者比较器 43 内， 使声音传感器 41 或比较器 43具有信号放大的功能。
吸尘器 100可以不具有比较器 43， 此时比较器 43 与电子开关 30 连接， 当声音传感器 41 感测到声音信号时， 发出的感测信号会通过 信号放大电路 42放大后输出给电子开关 30， 当电子开关 30接收到 所述感测信号后通电， 使吸尘器 100开始吸尘工作。 如此设置， 使第 一电动工具 1 与吸尘器 100 的一致性达到较佳。 当然， 若比较器 43 集成于声音传感器 41 内， 则声音传感器 41直接与电子开关 30连接， 并通过声音传感器 41是否发出工作声音信号控制电子开关 30通电或 不通电。
更进一步的， 当吸尘器 100不具有比较器 43 时， 声音控制模块 40 可以设置有延时启动功能， 仅当其感测到的声音信号持续一段时 间之后， 声音控制模块 40启动吸尘器 100进行工作。 此时声音控制 模块 40 可以具有一个计数器， 即当感测到声音信号时， 所述计数器 开始计数， 如果声音信号持续则计数器也持续计数， 当到达一预设时 间长度时，声音控制模块 40控制电子开关 30通电以启动吸尘器 100， 如果在所述计数器计数过程中， 声音信号停止， 而所述计数器未达到 所述预设时间长度时， 所述计数器停止计数并清零待再次有声音信号 响起时进行计数， 此时声音控制模块 40不会控制电子开关 30通电。 如此设置， 实现了只有持续一段时间的声音信号才会使声音控制模块 40控制电子开关 30通电， 如当进行切割工作时， 锯片切割工件的声 音信号或者马达的声音信号都会持续一段时间从而能够启动吸尘器 100， 而类似说话或敲击的声音信号则不会启动吸尘器 100， 从而实 现了吸尘器 100不会轻易受环境中其它声音信号干扰而启动工作。在 吸尘器 100启动后， 若所述声音信号停止， 则声音控制模块 40立即 控制电子开关 30使其不通电， 从而实现吸尘器 100 自动关闭。
本领域技术人员还可以通过其他方式实现比较器 43 的门限功 能， 由于限于篇幅， 在此不便一一列举， 但只要其实现的功能与达到 的效果与本发明相同或相似均应涵盖于本发明保护范围内。
声音控制模块 40与电子开关 30—同形成声控开关， 以控制吸尘 器 100工作， 从而实现第二电动工具 100能够响应第一电动工具 1 的 启动而启动， 在使第一电动工具 1 与第二电动工具 100具有很好的工 作一致性的同时， 第一电动工具 1和第二电动工具 100可以分别具有 不同的电源， 从而避免了二者共用一个电源的电压不足的问题， 给用 户的工作带来了极大的便利。
请参阅图 4， 为本发明第二实施方式提供的第二电动工具 200， 在本实施方式中， 第二电动工具 200为吸尘器 200。
第二电动工具 200与本发明第一实施方式提供电动工具 100的功 能结构基本相同， 在此功能结构相同的元件标号与第一实施方式相 同， 二者不同之处在于： 请一并参阅图 1 和图 4， 控制模块 35 为设 置在吸尘器 200上的振动控制模块 46。 振动控制模块 46直接感测第 一电动工具 1 在启动后产生的振动， 以自动控制启动第二电动工具 200工作。
振动控制模块 46 包括： 振动传感器 47、 信号放大电路 42和比 较器 43。
吸尘管 10具有连接第一电动工具 1 的工具连接端 45， 振动传感 器 47位于吸尘管 10 内部临近工具连接端 45 的位置。 即当吸尘管 1 与第一电动工具 1连接之后， 振动传感器 47位于吸尘管 10 内临近第 一电动工具 1的位置。 从而使其与第一电动工具 1的距离非常接近， 当第一电动工具 1 工作时会产生振动， 并带动与其连接的吸尘管 10 一同振动， 由于振动传感器 47设置在吸尘管 10内靠近第一电动工具 1 的位置， 从而使振动传感器 47 能够准确的感测到所述振动并输出 感测信号。 振动传感器 47感测到第一电动工具 1工作时产生的震动 之后， 输出呈波形振荡的感测信号， 并且所述第一电动工具 1工作时 的振动幅度越强烈， 振动传感器 47输出的感测信号的电压越高。
信号放大电路 42与振动传感器 47连接， 并将所述感测信号按照 一定倍数放大之后输出给电子开关 30， 从而使电子开关 30通电以使 吸尘器 200启动工作。
当振动传感器 47感测到电动工具 1工作时产生的振动时， 其输 出感测信号， 信号放大电路 42接收所述感测信号并进行放大后给电 子开关 30， 使电子开关 30通电以使吸尘器 200开始工作； 在吸尘器 200 工作过程中， 当所述振动停止， 则振动传感器 47 不再输出感测 信号， 使电子开关 30失去电压基准而不通电， 使吸尘器 200停止工 作。
为了避免用户在拖动或安装吸尘管 10至第一电动工具 1 的过程 中的震动导致吸尘器 200启动， 震动控制模块 46还可以设置有比较 器，所述比较器与第一实施方式中提供的比较器 43的功能结构相同， 在此不再重复介绍。如此便可以实现仅当所述感测信号的电压大于电 压基准时， 比较器 43输出电压控制电子开关 30通电使吸尘器 200启 动工作， 当所述感测信号的电压小于电压基准时， 比较器 43 输出低 电压时电子开关 30不通电， 使吸尘器 200停止工作。
由上述描述便可以实现振动控制模块 46通过直接感测第一电动 工具 1在启动后产生的振动， 进一步控制电子开关 30是否通电， 进 而自动实现控制吸尘器 200是否工作。
为了防止灰尘污染振动传感器 47， 可以将振动传感器 47进行密 封， 优选地， 可以将振动传感器 47密封在吸尘管 10的侧壁内。 如此 设置能够实现振动传感器 47更加准确地感测第一电动工具 1工作时 产生的振动，从而使振动控制模块 46能够更加准确的控制吸尘器 200 启动， 使吸尘器 200与第一电动工具 1具有较佳的工作一致性。 相应的，振动控制模块 46也可以整体设置在吸尘管 10内临近工 具安装端 45的位置， 并密闭在吸尘管 10的侧壁内， 在振动控制模块 46与电子开关 30之间设置电导线连接， 从而实现吸尘器 200的机体 内的空间设置可以更加灵活。
当然， 本实施方式中的振动控制模块 46也可以替换为第一实施 方式中的声音控制模块 40， 声音传感器 41 或整个声音控制模块 40 也可以采用上述描述的方案设置在吸尘管 10 内， 并且也可以密闭在 吸尘管 10的侧壁内， 由于如此设置使声音传感器 41距离第一电动工 具 1 更加接近， 从而使声音控制模块 40能够更加准确的控制吸尘器 启动， 而不受环境噪声干扰。
当然，控制模块 35也可以同时包括声音控制模块 40和振动控制 模块 46， 并且籍由两个模块之间相互配合实现控制所述第二电动工 具。比如可以为仅当二个模块同时发出控制所述第二电动工具启动的 信号时，所述第二电动工具才启动工作，否则视为存在其他因素干扰， 如此设置提高了控制模块 35的抗干扰性。
请参阅图 1和图 5，本发明第三实施方式提供的第二电动工具 300 与第一实施方式提供的第二电动工具 100的功能结构基本相同，在此 功能结构相同的元件标号与第一实施方式相同， 二者不同之处在于： 在本实施方式中， 第二电动工具 300为吸尘器 300， 且吸尘器 300的 控制模块 35 为声音控制模块 50。 声音控制模块 50 包括声音传感器 41、 信号放大电路 42、 模拟 /数字转换电路 48、 存储器 49和处理器 51。
模拟 /数字转换电路 48 与信号放大电路 42 电性连接， 其将信号 放大电路 42放大后的模拟信号转换成数字信号。 可以理解， 模拟 /数 字转换电路 48可以独立于声音传感器 41外，也可以集成于声音传感 器 41 内， 本领域技术人员可以根据实际需要进行选择。
存储器 49 内存储有一预设条件， 当所述数字信号满足所述预设 条件， 则说明当前感测到的声音信号为第一电动工具 1 工作声音信 号， 即第一电动工具 1 已经开始工作， 需要启动吸尘器 300进行吸尘 工作。
所述预设条件为至少一个特征值， 如频率、 振幅、 周期、 波峰值、 波谷值或其中任意几个的组合等。 在本实施方式中， 所述预设条件为 频率和振幅， 若当前数字信号的频率和振幅与所述预设条件的频率和 振幅相同， 则认为当前感测到的声音信号为第一电动工具 1 发出的工 作声音信号。 在设置所述预设条件时， 会结合与其配合的第一电动工 具 1的工作声音信号的相应情况， 即将第一电动工具 1在工作状态下 马达的声音信号与加工工件的声音信号叠加后的声音信号的特征值 作为所述预设条件。 当然， 所述特征值并不限于选自所述马达的声音 信号与加工工件的声音信号叠加后的生音，也可以仅仅为所述马达的 声音信号或加工工件的声音信号。
当然， 所述预设条件还可以有其他设置方式， 本领域技术人员还 可能做出其它变更， 但只要其功能以及效果与本发明相同或相似， 均 应涵盖于本发明保护范围内。
处理器 51与模拟 /数字转换电路 48以及存储器 49电性连接， 并 接收所述数字信号， 并从存储器 49 中读取所述预设条件， 并分析所 述数字信号是否满足所述预设条件， 如果满足所述预设条件， 则处理 器 51控制电子开关 30通电。 在本实施方式中， 处理器 51接收所述 数字信号后，会从所述数字信号中识别出马达转动时发出声音信号的 频率和振幅， 并将所述频率和振幅与所述预设条件的频率和振幅比 较， 如果相同， 则控制电子开关 30通电， 使吸尘器 300开始工作； 当所述声音信号停止时， 则不会再产生所述感测信号， 则处理器 51 控制所述电子开关 30不通电， 从而实现吸尘器 300 自动响应第一电 动工具 1的关闭而停止工作。
当处理器 51控制电子开关 30通电之后，会持续接收所述数字信 号， 并持续判断所述数字信号是否满足所述预设条件， 如果满足， 则 控制电子开关 30保持通电状态， 如果所述数字信号不满足所述预设 条件， 则处理器 51控制电子开关 30不通电， 直至再度所述数字信号 满足所述预设条件时， 控制电子开关 30通电。
通过本实施方式中的声音控制模块 50可以使吸尘器 300与第一 电动工具 1的工作一致性较好， 并且通过设置预设条件确定是否为第 一电动工具 1 发出的工作声音信号，使吸尘器 300不受外界噪音的干 扰， 提高了用户使用的便利性。 为了使处理器 51 接收到的所述数字信号更加有序， 可以在声音 传感器 41 与模拟 /数字转换电路 48之间设置一个滤波电路 53。 滤波 电路 53能够对声音传感器 41生成的模拟信号进行过滤，从而使进入 模拟 /数字转换电路 48 中的模拟信号更加有规则， 进而使经过模拟 / 数字转换电路 48转换之后进入处理器 51的数字信号更加有序。在本 实施方式中， 滤波电路 53 电性连接于信号放大电路 42 与模拟 /数字 转换电路 48之间。
为了降低声音控制模块 50的能耗， 可以在声音传感器 41与模拟 /数字转换电路 48之间设置一个采样电路 55。 采样电路 55为一个采 样电路， 其每间隔一段时间对声音传感器 41 生成的模拟信号进行采 样， 并将采集到的模拟信号传送给模拟 /数字转换电路 48。 如此模拟 / 数字转换电路 48 只需将采集到的模拟信号转换成数字信号并传送给 处理器 51， 而处理器 51仅仅需要针对模拟 /数字转换电路 48传送的 数据进行分析， 从而减少了模拟 /数字转换电路 48 以及处理器 51 的 工作量， 进而降低的能耗。 在本实施方式中， 采样电路 55 电性连接 于滤波电路 53与模拟 /数值转换电路 47之间， 此时采样电路 55每间 隔一段时间对经过滤波电路 53 的模拟信号进行采样， 并将采样结果 传送给模拟 /数字转换电路 48。
为了使吸尘器 300 与不同的电动工具配合使用， 可以使吸尘器 300具备学习功能， 即吸尘器 300能够将当前感测到的声音信号的频 率、 振幅、 周期、 波峰值、 波谷值或其任意组合存储至所述存储器， 作为所述预设条件。 在本实施方式中， 可以通过在吸尘器 300上设置 按钮， 当所述按钮被触发时， 处理器 51便会不断接收由模拟 /数字转 换电路 48传来的数字信号， 当用户再次触发所述按钮时， 处理器 51 会将所述按钮再次触发前数字信号的频率和振幅等信息存储至存储 器 49， 并作为一个所述预设条件。 比如， 所述电动工具为砂光机， 当使用者按下吸尘器 300的所述按钮， 并启动所述砂光机工作， 处理 器 51 便不断接收经过模拟 /数字转换电路 48转换后的数字信号， 当 使用者再次按下所述按钮时， 处理器 51 会将在按下按钮前接收的数 字信号的频率和振幅等信息存储至存储器 49 中， 此时， 吸尘器 300 结束学习， 如果所述砂光机没有关闭或者再次启动时， 声音控制模块 50 会因感测到所述砂光机的工作声音信号并且满足所述预设条件， 而控制吸尘器 300进行工作。
当然， 也可以进按下所述按钮一次便实现设置所述预设条件。 即 当所述按钮被按下时， 处理器 51 将当前声音信号的特征值存储至存 储器 49 中， 作为所述预设条件。 本领域技术人员还可能做出其他变 更，但只要其功能与效果与本发明相同或相似均应涵盖于本发明保护 范围内。
当然， 本实施方式中的声音传感器 41也可以替换为振动传感器， 相应的所述预设条件可以为所述振动传感器输出的波形感测信号的 频率、 振幅、 周期、 波峰值、 波谷值或其中任意几个的组合。 如此设 置，便可以直接识别出其当前受到的振动是否为第一电动工具 1在启 动后产生的， 从而实现不受其他因素干扰， 仅当第一电动工具 1工作 时， 吸尘器才会被启动。 当然， 将声音传感器 41 替换成振动传感器 之后， 其也可以具有上述描述的学习功能， 即仅需将当前所述振动传 感器输出的波形感测信号的频率、 振幅、 周期、 波峰值、 波谷值或其 中任意几个的组合作为预设条件， 采用上述方式存入存储器 49 中即 可， 从而也可以实现吸尘器能够与不同的电动工具配合使用。
本发明第四实施方式提供一种上述实施方式中的电动工具的组 合的启动方法， 所述启动方法为： 将所述第一电动工具和所述第二电 动工具连接至不同的电源； 启动所述第一电动工具， 所述第二电动工 具自动响应所述第一电动工具的启动而启动；所述第一电动工具被关 闭时，所述第二电动工具自动响应所述第一电动工具的关闭而停止工 作。
当然步骤将所述第一电动工具和所述第二电动工具连接至不同 的电源， 可以理解为分别将所述第一电动工具和所述第二电动工具连 接至不同的交流电源， 或者分别安装电池包， 或者其中一个连接交流 电源， 另一个安装电池包， 在此不再针对上述设置方式进行穷举， 仅 仅需要所述第一电动工具和所述第二电动工具由不同的电源供电即 可。
所述启动方法使用户仅仅需要操作启动所述第一电动工具， 而无 需对所述第二电动工具进行任何操作，便可以实现所述第一电动工具 启动时， 所述第二电动工具也能够自动启动， 给使用者带来了极大的 便利。
本领域技术人员在本发明技术精髓启示下， 还可能采用其他技术 方案实现所述第二电动工具自动响应所述第一电动工具的启动而启 动， 比如在所述第一电动工具设置无线信号发送装置， 而在第二电动 工具上设置无线信号接收装置， 当第一电动工具工作时， 所述无线信 号发送装置会发出信号， 所述无线信号接收装置会接收所述信号， 此 时所述第二电动工具通过所述无线信号接收装置接收到所述信号之 后便立即启动工作， 也可以实现所述第二电动工具响应所述第一电动 工具的启动而启动。 当然， 本领域技术人员还可能做出其它变更， 但 只要其功能与效果与本发明相同或相似， 均应涵盖于本发明保护范围 内。
与现有技术相比， 本发明中提供的电动工具的组合， 通过使所述 第二电动工具自动响应第一电动工具的启动而启动， 从而实现当用户 启动第一电动工具进行工作之后， 第二电动工具无需用户额外的操作 而 自动启动， 给使用者带来了便利。 再者， 由于第一电动工具和第二 电动工具分别具有独立的电源， 从而使二者工作过程中不会受到电压 的影响， 从而避免了二者共用一个电源导致电压不足的问题。
本领域技术人员可以想到的是， 本发明还可以有其他的实现方 式， 但只要其采用的技术精髓与本发明相同或相近似， 或者任何基于 本发明作出的变化和替换都在本发明的保护范围之内。

Claims

权 利 要 求 书
1. 一种电动工具的组合， 包括：
分别具有独立电源的第一电动工具和第二电动工具；
其特征在于：
所述第二电动工具能够自动响应所述第一电动工具的启动而启 动。
2. 根据权利要求 1所述电动工具的组合， 其特征在于： 所述第二电动 工具能够自动响应所述第一电动工具的关闭而停止工作。
3. 根据权利要求 2所述电动工具的组合， 其特征在于： 所述第二电动 工具具有通过检测所述第一电动工具在启动后产生的振动，以自动 控制启动所述第二电动工具的控制模块。
4. 根据权利要求 3所述电动工具的组合， 其特征在于： 所述控制模块 包括接收所述振动产生的声音信号，以自动控制启动所述第二电动 工具的声音控制模块。
5. 根据权利要求 4所述电动工具的组合， 其特征在于： 所述第二电动 工具包括控制所述第二电动工具启动的开关，所述声音控制模块包 括： 将感测到的声音信号转化成感测信号并输出的声音传感器； 与 所述声音传感器以及所述开关连接，并将所述感测信号放大并输出 给所述开关的信号放大电路。
6. 根据权利要求 5所述电动工具的组合， 其特征在于： 所述声音控制 模块还包括电性连接于所述信号放大电路与所述开关之间的比较 器，所述比较器将所述感测信号的电压与一个预先设置的基准电压 比较， 当所述感测信号的电压大于所述基准电压时， 所述声音控制 模块控制所述开关通电。
7. 根据权利要求 5所述电动工具的组合， 其特征在于： 声音控制模块 还包括能够计时的延迟电路，仅当所述声音传感器输出的感测信号 持续达到预设时间长度时， 所述声音控制模块控制开关通电。
8. 根据权利要求 4所述电动工具的组合， 其特征在于： 所述声音控制 模块包括：
声音传感器， 将感测到的声音信号转化成模拟信号；
信号放大电路， 与所述声音传感器电性连接， 并将所述感测信号 按照固定倍数放大；
模拟 /数字转换电路， 其与所述信号放大电路电性连接， 接收所 述感测信号并将所述模拟信号转换成数字信号；
存储器， 存储有预设条件；
处理器， 与所述模拟 /数字转换电路以及所述存储器电性连接， 接收所述数字信号， 并读取所述预设条件， 所述数字信号符合预设条 件时， 则所述处理器控制所述第二电动工具启动。
9. 根据权利要求 8所述电动工具的组合， 其特征在于： 所述预设条件 为至少一个所述声音信号的特征值，该特征值为频率、振幅、周期、 波峰值、 波谷值或其中任意几个的组合。
10.根据权利要求 8 所述电动工具的组合， 其特征在于： 所述声音控 制模块还包括电性连接于所述声音传感器和所述模拟 /数字转换电 路之间的滤波电路。
11.根据权利要求 8 所述电动工具的组合， 其特征在于： 所述第二电 动工具可操作的将当前感测到的声音信号的频率、 振幅、 周期、 波 峰值、波谷值或其任意组合存储至所述存储器，作为所述预设条件。
12.根据权利要求 3 所述电动工具的组合， 其特征在于： 所述控制模 块包括直接检测所述振动，以自动控制启动所述第二电动工具的振 动控制模块。
13.根据权利要求 12所述电动工具的组合， 其特征在于： 所述第二电 动工具包括控制所述第二电动工具启动的开关，所述振动控制模块 包括检测所述振动并输出感测信号的振动传感器；与所述振动传感 器以及所述开关连接，并将所述感测信号放大后输出给所述开关使 所述开关通电的信号放大电路。
14.根据权利要求 13所述电动工具的组合， 其特征在于： 所述振动控 制模块还包括电性连接于所述信号放大电路与所述开关之间的比 较器，所述比较器将所述感测信号的电压与一个预先设置的基准电 压比较， 仅当所述感测信号的电压大于等于所述基准电压时， 所述 振动控制模块控制所述开关通电。
15.根据权利要求 1至 14任一所述电动工具的组合， 其特征在于： 所 述第一电动工具选自砂光机、 台锯、 斜断锯、 电圆锯、 曲线锯、 角 磨、 电木铣、 电锤、 电钻、 电刨、 砂带机、 台式曲线锯或云石机中 的一个。
16.根据权利要求 15所述电动工具的组合， 其特征在于： 所述第二电 动工具选自吸尘器、喷水枪、吹风机或便携式工作照明灯中的一个。
17.根据权利要求 16所述电动工具的组合， 其特征在于： 所述独立电 源为电池包。
18.根据权利要求 2至 14所述电动工具的组合， 其特征在于： 所述第 二电动工具为吸尘器， 且所述吸尘器还包括：
作为所述第二电动工具的电源的电池包；
进行吸尘工作的机体；
安装在所述机体上的吸尘管，所述吸尘管具有与所述第一电动工 具连接的工具连接端。
19.根据权利要求 18所述电动工具的组合， 其特征在于： 所述控制模 块设置在所述吸尘管内临近所述工具连接端的位置。
20.根据权利要求 19所述电动工具的组合， 其特征在于： 所述控制模 块密封在所述吸尘管的侧壁内。
21.—种电动工具的组合的启动方法， 所述电动工具的组合包括第一 电动工具和第二电动工具， 所述启动方法包括：
启动所述第一电动工具，所述第二电动工具自动响应所述第一电 动工具的启动而启动。
22.根据权利要求 21所述电动工具组合的启动方法， 其特征在于： 所 述启动方法还包括， 在启动所述第一电动工具之前， 所述第一电动 工具和所述第二电动工具分别连接不同的电源。
23.根据权利要求 21所述电动工具组合的启动方法， 其特征在于： 所 述第一电动工具被关闭时，所述第二电动工具自动响应所述第一电
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