[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

WO2021134905A1 - 电动工具及其电控组件 - Google Patents

电动工具及其电控组件 Download PDF

Info

Publication number
WO2021134905A1
WO2021134905A1 PCT/CN2020/077756 CN2020077756W WO2021134905A1 WO 2021134905 A1 WO2021134905 A1 WO 2021134905A1 CN 2020077756 W CN2020077756 W CN 2020077756W WO 2021134905 A1 WO2021134905 A1 WO 2021134905A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit board
mounting base
power circuit
electric control
heat dissipation
Prior art date
Application number
PCT/CN2020/077756
Other languages
English (en)
French (fr)
Inventor
王槐树
李宝珊
段俊雅
冯继丰
范焱锋
闵月梅
滕鹏
杨青松
Original Assignee
南京德朔实业有限公司
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 南京德朔实业有限公司 filed Critical 南京德朔实业有限公司
Priority to EP20910134.4A priority Critical patent/EP4046754B1/en
Publication of WO2021134905A1 publication Critical patent/WO2021134905A1/zh
Priority to US17/744,146 priority patent/US20220271624A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/0094—Structural association with other electrical or electronic devices
    • 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
    • B25F5/02—Construction of casings, bodies or handles
    • 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
    • B25F5/008—Cooling means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H02K7/145—Hand-held machine tool
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
    • H05K7/1427—Housings

Definitions

  • This application relates to the technical field of electric tools, for example, to an electric tool and an electric control component thereof.
  • PCB components in related technologies have the following problems: PCB components are connected to the power supply through flexible connections such as wires, due to the connection ends of wires and electrical components The stability is poor, and the connection is likely to fail due to external reasons such as vibration or aging during use. The reliability is low, which affects the service life and increases the maintenance cost; and the wiring method of the wire is more complicated, which is not conducive to the structure setting inside the case , Increasing the manufacturing difficulty and cost of the production line.
  • the PCB components in related technologies only have basic functions such as control and drive, have a low degree of integration, are not compact in structure, and occupy a large space, which is not conducive to miniaturization and vibrantness of the whole machine.
  • the present application provides an electric tool and its electric control assembly with high reliability, high integration, and size optimization.
  • An embodiment of the present application provides an electric tool, including:
  • a host the host includes a housing, and a motor, a switch assembly, and an electric control assembly installed in the housing, and the electric control assembly is electrically connected to the switch assembly and the motor, respectively;
  • the battery pack is detachably coupled to the host, and has a connection state that is electrically conductive with the electronic control component and a separate state that is disconnected from the electronic control component;
  • the electronic control component includes:
  • An electric control unit the electric control unit includes a power circuit board, and the power circuit board adopts a metal substrate;
  • a mounting base the power circuit board is in contact with the mounting base, the mounting base is provided with an opening, and the mounting base is a metal base;
  • the docking unit conductively connects the battery pack and the electric control unit, the docking unit is inserted into the mounting base through the opening, and cooperates with the mounting base to form an installation space, so The electric control unit is installed in the installation space.
  • the electric control unit further includes a control circuit board, and the control circuit board and the power circuit board are stacked in the mounting base.
  • the mounting base includes a bottom plate and a wall plate, the wall plate is arranged along an edge of the bottom plate, and the wall plate is provided with the opening.
  • the docking unit includes a connecting seat and a conductive member provided on the connecting seat, the connecting seat is plug-connected to the bottom plate through the opening, and the conductive member is connected to the electric control Components and the battery pack;
  • the conduction element includes an electrically controlled conduction element and a power conduction element that are electrically connected, and a conduction limiter is provided on the power circuit board, and the conduction limiter is connected to the electric control
  • the conductive member is conductively matched and restricts the power circuit board.
  • the electronic control assembly further includes a blocking unit connected to the wall plate to block the opening; the blocking unit is provided with a slot that is slidably connected to the wall plates on both sides of the opening.
  • the mounting base further includes heat dissipation fins, the heat dissipation fins are provided on the side of the bottom plate facing away from the electronic control unit, and a heat dissipation channel is formed between the heat dissipation fins.
  • part or all of the heat dissipation fins extend to the wall plate to form diversion fins, and diversion channels are formed between the diversion fins, and the diversion channels are in communication with the heat dissipation channels.
  • an air inlet and an air outlet are provided on the casing, and the diversion channel on the mounting base is arranged in abutting connection with the air inlet.
  • the electric tool further includes a displacement compensation unit, and the displacement compensation unit is provided at a contact point between the inner wall of the casing and the electronic control component.
  • An embodiment of the present application provides an electric tool, including:
  • a host the host includes a housing, and a motor, a switch assembly, and an electric control assembly installed in the housing, and the electric control assembly is electrically connected to the switch assembly and the motor, respectively;
  • the battery pack is detachably coupled to the host, and has a connection state that is electrically conductive with the electronic control component and a separate state that is disconnected from the electronic control component;
  • the electronic control component includes:
  • An electric control unit including a power circuit board
  • An installation base the installation base is provided with an opening
  • the docking unit is conductively connected to the battery pack and the electronic control unit, the docking unit is inserted into the mounting base through the opening, and cooperates with the mounting base to form an installation space, the The electric control unit is installed in the installation space;
  • a blocking unit which is inserted into the opening to prevent the packaging glue from overflowing from the opening.
  • the mounting base includes a bottom plate and a wall plate, the wall plate is arranged along an edge of the bottom plate; the wall plate is provided with the opening.
  • the blocking unit is provided with a card slot which is slidably connected with the wall plates on both sides of the opening.
  • the electronic control unit further includes a control circuit board, the control circuit board and the power circuit board are stacked in the mounting base, and the power circuit board is in contact with the mounting base.
  • the docking unit includes a connecting seat and a conductive member provided on the connecting seat, the connecting seat is plugged into the bottom plate, and the conductive member includes an electrically controlled conductive member that is electrically conductively connected and
  • the power supply conduction element, the power circuit board is provided with a conduction limiting element, and the conduction limiting element is conductively matched with the electric control conduction element and restricts the power circuit board.
  • the conduction element includes an electrically controlled conduction element and a power conduction element that are electrically connected, and a conduction limiter is provided on the power circuit board, and the conduction limiter is connected to the electric control
  • the conductive member is conductively matched and restricts the power circuit board.
  • the mounting base further includes heat dissipation fins, the heat dissipation fins are provided on the side of the bottom plate facing away from the electronic control unit, and a heat dissipation channel is formed between the heat dissipation fins.
  • part or all of the heat dissipation fins extend to the wall plate to form diversion fins, and diversion channels are formed between the diversion fins, and the diversion channels are in communication with the heat dissipation channels.
  • an air inlet and an air outlet are provided on the casing, and the diversion channel on the mounting base is arranged in abutting connection with the air inlet.
  • the electric tool further includes a displacement compensation unit, and the displacement compensation unit is provided at a contact point between the inner wall of the casing and the electronic control component.
  • An embodiment of the present application provides an electric tool, including:
  • a host the host includes a housing, and a motor, a switch assembly, and an electric control assembly installed in the housing, and the electric control assembly is electrically connected to the switch assembly and the motor, respectively;
  • the battery pack is detachably coupled to the host, and has a connection state that is electrically conductive with the electronic control component and a separate state that is disconnected from the electronic control component;
  • the electronic control component includes:
  • An electric control unit including a power circuit board
  • a mounting base at least dissipates the power circuit board, and the mounting base is provided with a mounting part;
  • the docking unit conductively connects the battery pack and the electric control unit, the docking unit is matedly connected with the mounting base via the mounting portion to form an installation space, and the electric control unit is installed on the In the installation space.
  • the electronic control unit further includes a control circuit board, the control circuit board and the power circuit board are stacked in the mounting base, and the power circuit board is in contact with the mounting base.
  • control circuit board and the power circuit board are plug-connected through an electrical connector.
  • the mounting base includes a bottom plate and a wall plate, the wall plate is arranged along the edge of the bottom plate; the wall plate is provided with an opening, and the opening constitutes the mounting portion, and the docking unit passes through The opening is inserted into the bottom plate.
  • the electronic control assembly further includes a blocking unit connected to the wall plate to block the opening; the blocking unit is provided with a slot that is slidably connected to the wall plates on both sides of the opening.
  • the docking unit includes a connecting seat and a conductive member arranged on the connecting seat, the conductive member includes an electrically controlled conductive member and a power conductive member that are electrically connected, and the power circuit board A conduction limiter is provided, and the conduction limiter is conductively matched with the electric control conduction member and restricts the power circuit board.
  • the conduction limiting member includes a connecting hole provided on the power circuit board, and the electrically controlled conductive member is adapted to penetrate the connecting hole.
  • the mounting base further includes heat dissipation fins, the heat dissipation fins are provided on the side of the bottom plate facing away from the electronic control unit, and a heat dissipation channel is formed between the heat dissipation fins.
  • part or all of the heat dissipation fins extend to the wall plate to form diversion fins, and diversion channels are formed between the diversion fins, and the diversion channels are in communication with the heat dissipation channels.
  • an air inlet and an air outlet are provided on the casing, and the diversion channel on the mounting base is arranged in abutting connection with the air inlet.
  • the electric tool further includes a displacement compensation unit, and the displacement compensation unit is provided at a contact point between the inner wall of the casing and the electronic control component.
  • An embodiment of the present application provides an electronic control component, including:
  • Electronic control unit including power circuit board;
  • a mounting base at least dissipates the power circuit board, and a mounting part is provided on the mounting base;
  • the docking unit conductively connects the battery pack and the electric control unit, the docking unit is matedly connected with the mounting base via the mounting portion to form an installation space, and the electric control unit is installed on the In the installation space.
  • the electronic control unit further includes a control circuit board, the control circuit board and the power circuit board are stacked in the mounting base, and the power circuit board is in contact with the mounting base.
  • control circuit board and the power circuit board are plug-connected through an electrical connector.
  • the mounting base includes a bottom plate and a wall plate, the wall plate is arranged along the edge of the bottom plate; the wall plate is provided with an opening, and the opening constitutes the mounting portion, and the docking unit passes through The opening is inserted into the bottom plate.
  • the electronic control assembly further includes a blocking unit connected to the wall plate to block the opening; the blocking unit is provided with a slot that is slidably connected to the wall plates on both sides of the opening.
  • the docking unit includes a connecting seat and a conductive member provided on the connecting seat, the connecting seat is plugged into the bottom plate, and the conductive member includes an electrically controlled conductive member that is electrically conductively connected and
  • the power supply conduction element, the power circuit board is provided with a conduction limiting element, and the conduction limiting element is conductively matched with the electric control conduction element and restricts the power circuit board.
  • the conduction limiting member includes a connecting hole provided on the power circuit board, and the electrically controlled conductive member is adapted to penetrate the connecting hole.
  • the mounting base further includes heat dissipation fins, the heat dissipation fins are provided on the side of the bottom plate facing away from the electronic control unit, and a heat dissipation channel is formed between the heat dissipation fins.
  • part or all of the heat dissipation fins extend to the wall plate to form diversion fins, and diversion channels are formed between the diversion fins, and the diversion channels are in communication with the heat dissipation channels.
  • the electric control assembly integrates power supply conduction, control and heat dissipation, which improves the integration of electric tools, reduces the occupied space, and is beneficial to the integration.
  • the size of the machine is reduced; on the other hand, it has strong versatility and high adaptability, which can be applied to other similar tools.
  • Figure 1 is a schematic diagram of the overall structure of an electric tool provided by an embodiment
  • Figure 2 is a schematic diagram of the whole machine structure shown in Figure 1 after removing the air inlet filter;
  • Figure 3 is a partial enlarged view of A shown in Figure 2;
  • Figure 4 is a schematic diagram of the structure of the whole machine after opening the host casing
  • Figure 5 is a schematic structural diagram of the whole machine after removing the battery pack and part of the main machine casing
  • Fig. 6 is a schematic structural diagram of an electronic control assembly provided by an embodiment after assembling
  • FIG. 7 is a schematic diagram of the structure of the electronic control component in FIG. 6 after sealing
  • FIG. 8 is a schematic diagram of the structure of the electronic control component in FIG. 6 after the connecting wires are removed;
  • Fig. 9 is a schematic structural view from another angle of Fig. 8.
  • Fig. 10 is an exploded schematic diagram of the electronic control assembly in Fig. 7;
  • Figure 11 is a schematic diagram of an assembly of a mounting base and a docking unit provided by an embodiment
  • Figure 12 is a schematic structural diagram of a mounting base provided by an embodiment
  • Figure 13 is a top view of the mounting base shown in Figure 12;
  • Figure 14 is a bottom view of the mounting base shown in Figure 12;
  • FIG. 15 is a schematic structural diagram of a docking unit provided by an embodiment
  • Figure 16 is a front view of the docking unit in Figure 15;
  • Figure 17 is a right side view of the docking unit in Figure 15;
  • Figure 18 is a top view of the docking unit in Figure 15;
  • FIG. 19 is a schematic structural diagram of a barrier unit provided by an embodiment.
  • 300-motor 310-fan; 320-switch assembly; 330-output assembly;
  • 500-electric control unit 510-power circuit board; 511-field effect tube; 512-capacitor; 513-connection hole; 514-support column; 520-control circuit board; 530-wire; 540-screw; 550-isolation column ; 560-capacitor circuit board; 570-board-to-board connector;
  • 600-mounting base 610-base plate; 611-heat dissipation fin; 612-heat dissipation channel; 620-wall plate; 621-diversion fin; 622-diversion channel; 630-opening;
  • the electric tool is a hand-held electric angle grinder, which includes a host 100 and a battery detachably coupled to the host 100 Pack 200.
  • the host 100 of the embodiment of the present application includes a casing 110 and a motor 300, a fan 310, a switch assembly 320 and the like disposed in the casing 110.
  • the motor 300 drives the fan 310 to rotate and provides power to the output assembly 330.
  • the housing 110 is provided with an air inlet 120 and an air outlet 140; the fan 310 is used to generate air flow and discharge the air out of the tool housing 110, and the fan 310 is coaxial with the motor shaft of the motor 300 The setting rotates with the rotation of the motor 300.
  • the angle grinder in this embodiment is further provided with a detachable filter screen 160 outside the air inlet 120 to prevent external dust from entering.
  • the output assembly 330 includes an output shaft and a tool accessory matched with the output shaft.
  • the tool accessory in this embodiment includes a grinding disc (not shown in the figure).
  • this embodiment also includes an electric control assembly 400 arranged in the casing 110, wherein the casing 110 includes left and right casings, and the electric control assembly 400 is clamped between the limiting ribs of the left and right casings. After the shells are engaged, they are fixed as a whole by screws.
  • the electronic control assembly 400 in this embodiment is used to connect the battery pack 200, and the electronic control assembly 400 is also electrically connected to the switch assembly 320 and the motor 300 through wires 530, and the switch assembly 320 controls the motor. 300 on and off to control the working state of the whole machine.
  • the casing 110 of this embodiment includes a front end, a hand-held part, and a rear-end part.
  • the motor 300, the fan 310 and the switch assembly 320 are arranged at the hand-held part, the output assembly 330 is arranged at the front end, and the electric control assembly 400 is arranged at the rear end.
  • the rear end is the foot position where the angle grinder is connected to the battery pack 200.
  • the electric control assembly 400 of this embodiment includes an electric control unit 500, a mounting base 600, a docking unit 700 and a blocking unit 800.
  • the docking unit 700 is conductively connected to the battery pack 200 and the electronic control unit 500.
  • the mounting base 600 is provided with a mounting part.
  • the docking unit 700 is connected to the mounting base 600 through the mounting part to form an installation space.
  • the electronic control unit 500 is installed in the In the installation space.
  • the electronic control unit 500 includes a power circuit board 510 and a control circuit board 520, wherein the control circuit board 520 outputs control commands to control the operation of the motor 300, and the power circuit board 510 and the control circuit board 520 are electrically connected.
  • the electronic control assembly 400 may also include only one circuit board, that is, the power circuit board and the control circuit board are combined into one circuit board.
  • the power circuit board 510 is provided with, for example, a field effect tube 511 (MOS tube) and a capacitor 512.
  • the field effect tube 511 is used to control the on and off of the power supply and the motor 300 according to the control signal.
  • the capacitor 512 is close to the field effect tube.
  • the tube 511 is arranged and integrated with the field effect tube 511 on the power circuit board 510. By placing the capacitor 512 close to the field effect tube 511 and the field effect tube 511 on the same circuit board, the filtering performance of the capacitor 512 is improved.
  • the control circuit board 520 is provided with a microcontroller, such as a single-chip microcomputer, for detecting and controlling the power on and off, temperature and current, etc., to realize power on and off control, over-temperature protection and over-current protection.
  • a microcontroller such as a single-chip microcomputer, for detecting and controlling the power on and off, temperature and current, etc., to realize power on and off control, over-temperature protection and over-current protection.
  • the power circuit board 510 in this embodiment is arranged close to or abutting the mounting base 600, the power circuit board 510 is an aluminum substrate, one side of the aluminum substrate is formed with a printed circuit and electronic components are mounted, and the other side of the aluminum substrate is Non-working surface, the non-working surface and the mounting base 600 are mounted on the bottom plate 610 and contacted with the bottom plate 610. Since the mounting base 600 and the power circuit board 510 are both aluminum bases and substrates, the thermal conductivity is better, which can The heat generated by the field effect transistor 511 on the power circuit board 510 is transferred and dissipated in time, thereby improving the heat dissipation efficiency of the electronic control unit 500.
  • the control circuit board 520 and the power circuit board 510 in this embodiment are stacked in the mounting base 600.
  • the control circuit board 520 and the power circuit board 510 are plug-connected through electrical connectors, wherein the electrical connector adopts a small board-to-board connector 570, and the board-to-board connector 570 is provided with a small conductive connection pin header.
  • One of the circuit boards is provided with a female socket, and the other circuit board is provided with a male plug matingly connected with the female socket, so that the power circuit board 510 and the control circuit board 520 can be stacked and arranged, and the small board-to-board connection can be realized.
  • the fitting height of the connector 570 does not exceed 4mm. Due to the low fitting height, the height of the wall plate 620 of the mounting base 600 can be lowered on the basis of meeting the requirements of glue potting and sealing, thereby reducing the mounting base 600 Height dimension.
  • the control circuit board 520 and the power circuit board 510 are directly provided with at least two spacers 550.
  • the spacers 550 are mounted on the control circuit board 520 to ensure a predetermined distance between the control circuit board 520 and the power circuit board 510. Distance to avoid electrical component failure and damage caused by the control circuit board 520 exerting force on the electrical components on the surface of the power circuit board 510.
  • the board body is reduced.
  • the size of the bottom wall of the mounting base is reduced, which is conducive to the reduction of the size of the whole machine; it also allows the electronic control assembly 400 to be installed on the stand without increasing the size of the whole machine’s foot.
  • the electronic control component is installed in the grip handle of the case, the size of the electronic control component is reduced, so that the size of the whole machine grip handle can be reduced, which makes it more convenient for users to hold and give users a better experience. .
  • the operation is simple and difficult, and complicated processes such as wire welding are omitted. Because the reliability of the welding connection is low, the board-to-board connector 570 is adopted.
  • the plug-in connection improves the reliability of the connection, and the convenient assembly is conducive to the increase of the production line productivity.
  • the power circuit board and the control circuit board of this embodiment may also adopt other connection methods, such as wire connection, as long as the two are electrically connected.
  • a capacitor circuit board 560 stacked on the power circuit board 510 is also provided, and the projection of the capacitor circuit board 560 and the control circuit board 520 on the surface of the power circuit board 510 does not cross.
  • three capacitors 512 are welded in parallel on the capacitor circuit board, and then the capacitor circuit board 560 is welded to the power circuit board 510.
  • the capacitor circuit board 560 is provided with a jack, and the power circuit board 510 is provided with a copper support column. 514.
  • the three capacitors are not directly mounted on the power circuit board 510, but are welded and fixed to the power circuit board 510 by means of the capacitor circuit board, which effectively reduces the size of the power circuit board, thereby reducing the size of the power circuit board.
  • the size of the installation base is conducive to the reduction of the size of the whole machine, such as the reduction of the size of the feet.
  • the number of capacitors is not limited to three, and can be set according to specific requirements.
  • the capacitor circuit board can also be soldered on the control circuit board 520 by means of patch soldering.
  • the mounting base 600 of this embodiment at least dissipates the power circuit board 510.
  • the mounting base 600 includes a bottom plate 610 and a wall plate 620.
  • the wall plate 620 is arranged along the edge of the bottom plate 610.
  • the wall plate 620 is provided with an opening 630, which constitutes the above-mentioned mounting portion.
  • the docking unit 700 is connected to the mounting base 600 through the opening 630.
  • the docking unit 700 is plugged into the mounting base from the opening 630, the structure is simple and easy to assemble, and the assembly process flow is simplified on the basis of improved integration.
  • the mounting base 600 of this embodiment further includes heat dissipation fins 611 and guide fins 621. As shown in FIG. 14, the heat dissipation fins 611 are provided on the side of the base plate 610 facing away from the electric control unit 500, and the heat dissipation fins 611 A heat dissipation channel 612 is formed therebetween.
  • part of the heat dissipation fins 611 extend to the wall plate 620 to form diversion fins 621, the diversion fins 621 form a diversion channel 622, the diversion channel 622 and the heat dissipation channel 612 Connected. After the external air enters the diversion channel 622 through the air inlet 120 on the main body casing 110, it enters the heat dissipation channel 612 through the diversion channel.
  • the heat dissipation fins 611 and the guide fins 621 in this embodiment are both ribs protruding from the mounting base 600.
  • the mounting base 600 in this embodiment is made of aluminum.
  • the heat dissipation fins 611 and the guide fins 621 are made of aluminum.
  • the fins 621 are all integrally formed with the mounting base 600.
  • heat dissipation fins By arranging heat dissipation fins on the bottom plate contacting the power circuit board to form a heat dissipation channel, the heat dissipation effect and heat dissipation efficiency are improved, and the effective heat dissipation of the power components is realized.
  • the external airflow is effectively introduced into the tool smoothly, the circulation speed of the airflow on the back of the mounting base is increased, the heat dissipation effect is improved, and the electrical performance of the circuit is ensured.
  • all the heat dissipation fins 611 can also be arranged to extend to the adjacent wall plate 620 to form the guide fins 621.
  • independent heat dissipation fins 611 and diversion fins 621 can also be provided on the bottom plate 610 and the wall plate 620, respectively, and it only needs to satisfy that the diversion channels generated by the diversion fins and Just connect the air inlet and the heat dissipation channel.
  • the diversion channel 622 guides the external airflow into the inside of the casing 110 while also taking away the heat on the wall plate 620, so the diversion channel 622 also plays a role in heat dissipation; in addition, the heat dissipation fins 611 and the diversion fins There are arc-shaped transition sections where the direction of 621 changes to facilitate the smooth flow of airflow.
  • the outlet direction of the heat dissipation channel 612 can be set along the direction of the heat dissipation air flow path in the casing 110 to guide the air flow in the heat dissipation channel 612 to smoothly move along the heat dissipation air flow path in the host 100 to avoid obstacles caused by different installation directions.
  • the air inlet 120 in this embodiment is provided with guide ribs 130, and the guide fins 621 and the guide ribs 130 in this embodiment are arranged correspondingly, so that the air inlet 120 and the guide ribs 130
  • the channels 622 are connected to ensure that the external air can directly enter the diversion channel 622 through the air inlet 120, and quickly enter the heat dissipation channel 612 from the diversion channel 622, so as to facilitate the rapid and smooth circulation of the cooling airflow in the whole casing 110. Thereby, the heat generated on the power circuit board 510 is quickly taken away, and the heat dissipation efficiency is improved.
  • the docking unit 700 of this embodiment includes a conductive member and a connecting seat 710.
  • the conductive member is provided on the connecting seat 710. See FIG. 11, where the connecting seat 710 is connected to the mounting base 600 through the opening 630.
  • the bottom plate 610 is plugged in.
  • the connecting seat 710 is provided with a card slot 711 adapted to the bottom plate 610, and the connecting seat 710 is inserted into the mounting base 600 in a direction parallel to the surface of the bottom plate 610 , Where the bottom plate 610 is inserted into the card slot 711, when the connecting seat 710 is inserted in place relative to the mounting base 600, the space formed by the mating connection of the connecting seat 710 and the mounting base 600 is the power circuit board 510 and the control circuit board 520 installation space.
  • the conductive member of this embodiment electrically connects the battery pack 200 and the electric control unit 500, wherein the conductive member includes an electric control conductive member and a power conductive member, and the electric control conductive member and the power conductive member are conductively connected to each other.
  • the electrical control conductive member includes a conductive terminal 720 provided at one end of the connecting seat 710 and exposed outside the connecting seat 710.
  • the conductive terminal 720 is used to conduct electricity with the electronic control unit 500, and the power supply is connected.
  • the components include a conductive insert 730 provided at the other end of the connecting seat 710 and exposed outside the connecting seat 710, and the conductive insert 730 is used for conductive connection with the connecting port of the battery pack 200. Referring to FIG. 11, after the connection base 710 and the bottom plate 610 of the mounting base 600 are assembled, the conductive terminals 720 and the conductive inserts 730 are located on both sides of the bottom plate 610, respectively.
  • the battery pack When in use, the battery pack is inserted along the guide ribs of the host and electrically connected to the conductive terminal 720.
  • the conductive insert 730 of the electric control assembly 400 in this embodiment needs to be connected to the battery pack. Therefore, this embodiment
  • the control circuit board 520, the power circuit board 510, and the bottom plate 610 of the mounting base 600 are approximately parallel to the direction of plugging and unplugging the battery pack.
  • the rear end of the casing 110 includes a plug that is mated with the battery pack 200.
  • the plugging surface, the power circuit board 510, the control circuit board 520, and the bottom plate 610 of the mounting base 600 are all arranged parallel to the plugging surface. It is precisely because of the above arrangement in this application that the size of the power circuit board 510 can be reduced, it is allowed to install the electronic control assembly 400 on the foot of the whole machine without increasing the size of the foot of the whole machine.
  • the power circuit board 510 in this embodiment is also provided with a conduction limiter that is conductively matched with the conductive terminal 720 and limits the power circuit board 510.
  • the conduction limiter is The component includes a connecting hole 513 provided on the power circuit board 510, wherein the power board 510 is connected to the conductive terminal 720 through the connecting hole 513 and then fixed and conductively connected to the conductive terminal 720 by welding.
  • the power circuit board 510 when assembling, is inserted along the axial direction of the conductive terminal 720 and then fixed to the bottom plate 610 of the mounting base 600 by screws 540.
  • the two screws 540 pass through the control circuit board in turn, and are spaced apart.
  • the post 550 and the power circuit board 510 are fixed on the mounting base 600 afterwards. Due to the above-mentioned connecting holes 513, automatic guidance and positioning of the power circuit board 510 assembly is realized during installation, which simplifies the assembly operation process of the power circuit board 510 and improves the productivity of the production line.
  • the electronic control assembly 400 in this embodiment further includes a barrier unit 800, which is connected to the wall plate 620 to block the opening 630.
  • the barrier unit 800 is connected to the mounting base. After assembly of the base 600, one end of it abuts on the power circuit board 510 and the connecting base 710, and the other end is roughly level with the ends of the wall plates 620 on both sides.
  • the blocking unit 800 and the mounting base 600 are assembled to block The inner wall of the unit 800, the wall plate of the mounting base 600, and the surface of the electric control unit are enclosed to form a filling cavity 900.
  • two sides of the barrier unit 800 are provided with sliding grooves 810, and the barrier unit 800 is slidably inserted into the wall plates 620 on both sides of the opening 630 through the sliding groove 810.
  • the barrier unit 800 is parallel to The wall plate 620 is inserted in the direction and finally abuts against the surface of the power circuit board 510, and then the electronic components in the filling cavity 900 are filled with glue to form a sealing layer 910, which encapsulates the exposed conductive pins of the components Therefore, the solid sealing of the electronic components is realized.
  • the sealant uses epoxy resin to realize the waterproof, dustproof, anti-corrosion, sealing and heat conduction of the electrical components, so as to ensure the mechanical strength of the whole machine and avoid the decrease of the electrical performance. .
  • the sliding groove on the barrier unit to be slidably connected with the wall plate, the barrier unit is slidably connected to the wall plate, the connection is simple and easy to assemble, thereby simplifying the assembly process.
  • a displacement compensation unit 150 is further provided on the inner wall of the rear end of the casing 110, wherein the displacement compensation unit 150 is arranged at the contact point between the inner wall of the casing 110 and the electronic control assembly 400.
  • the displacement compensation unit 150 may be an elastic washer or an elastic washer, because the conductive insert 730 is directly integrated on the electronic control assembly 400 in this embodiment.
  • the connection between the conductive insert 730 and the battery pack 200 in this embodiment is a hard connection. Therefore, in order to avoid the vibration during the use of the tool causing the conductive insert 730 to move relative to the interface of the battery pack 200, As a result, the conductive insert 730 is in poor contact with the battery pack 200 or the interface is damaged.
  • the electronic control assembly 400 can be in elastic contact with the inner wall of the housing 110.
  • the electronic control assembly 400 can generate a slight displacement compensation through the displacement compensation unit 150 to avoid large relative movement between the conductive insert 730 and the interface of the battery pack 200, thereby improving the service life of the tool and the user experience degree.
  • the electric control assembly of this embodiment can also be applied to other hand-held electric tools, such as electric drills, screwdrivers, sanders, wrenches, polishers, gun drills, electric hammers, electric picks, etc.
  • the maximum allowable working current is about 65A for electric tools.
  • the electric control component can not only realize the connection between the host and the power supply, but also realize the heat dissipation of the electric control unit, collect power conduction, control and control.
  • the heat dissipation is integrated, the integration is improved, the occupied space is reduced, and the size of the whole machine is reduced; on the other hand, it has strong versatility and high adaptability, which can be applied to other similar tools.
  • the connecting seat 710 of the docking unit 700 is inserted and fixed to the bottom plate 610 of the mounting base 600 from the opening 630 of the mounting base 600, so that the bottom plate 610 of the mounting base is inserted into the slot 711 of the connecting seat 710;
  • the docking unit is inserted into the installation base 600 along a direction parallel to the installation base bottom plate 610.
  • the power circuit board 510 of the electric control unit 500 is inserted along the conductive terminals 720 of the docking unit and fixed to the bottom plate 610 of the mounting base; wherein the power circuit board 510 is mounted to the mounting base 600 in a direction perpendicular to the bottom plate 610 of the mounting base After the installation is in place, it is fixedly connected to the bottom plate 610 by screws 540;
  • the barrier unit 800 is inserted into the sliding groove 810 of the barrier unit 800 along the direction perpendicular to the bottom plate 610 so that the barrier unit 800 and the wall board 620 are inserted in place to block the opening 630.
  • Glue is poured into the glue filling cavity formed by the enclosure unit 800 and the mounting base 600 to form the glue layer 910.
  • a predetermined number of displacement compensation units 150 are preset at the position where the inner wall of the casing 110 contacts the electronic control assembly 400, for example, elastic washers or elastic washers are clamped in the preset slot.
  • the electronic control assembly 400 is installed in the left or right housing and fixed by the limiting ribs on the inner wall of the housing, and the extension wire on the electronic control assembly 400 is fixedly connected with the switch assembly 320 or the motor 300; wherein the host 100
  • the installation methods of other structural parts in the interior reference may be made to related technologies, which will not be repeated here.
  • the other half of the casing is clamped with the above casing and fixed and locked by screws.
  • the docking unit and the mounting base can be assembled by simple plugging. After the assembly is completed, the power circuit board is penetrated and fixed to the mounting base along the conductive terminals. It only needs to be seated. Because the conductive terminals on the docking unit play a role of limiting and guiding the installation of the power circuit board, it simplifies the difficulty of assembling the power circuit board and improves the convenience and accuracy of its operation, and finally improves Improved assembly efficiency and increased production capacity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

一种电动工具及其电控组件，所述电动工具包括：主机，包括机壳，以及安装于所述机壳中的电机、开关组件和电控组件，所述电控组件分别与所述开关组件和所述电机电连接；电池包，可拆卸地结合至所述主机上，具有与所述电控组件导电的连接状态以及与所述电控组件断开的分离状态；所述电控组件包括：电控单元，所述电控单元包括功率电路板；安装基座，所述功率电路板与所述安装基座接触，所述安装基座上设有开口；以及对接单元，所述对接单元导电连接电池包与所述电控单元，所述对接单元经所述开口插接于所述安装基座上，并与所述安装基座配合形成安装空间，所述电控单元安装于所述安装空间中。

Description

电动工具及其电控组件
本申请要求申请日为2019年12月30日、申请号为201911394525.7的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及电动工具技术领域，例如涉及一种电动工具及其电控组件。
背景技术
随着PCB等电控组件的技术发展，应用也越来越广泛，但相关技术中的PCB组件存在以下问题：PCB组件均通过导线等软连接方式与电源连接，由于导线与电器元件的连接端稳定性较差，易在使用中由于震动或者老化等外部原因导致连接失效，可靠性较低，影响使用寿命，增加了维护成本；且导线的布线方式较为复杂，不利于机壳内部的结构设置，增加了产线的制造难度和成本。另外相关技术中的PCB组件只具有控制和驱动等基本功能，集成化程度较低，且结构不紧凑，占用空间较大，不利于整机的小型化和精巧化。
发明内容
本申请提供了一种可靠性高、集成度高、有利于尺寸优化的电动工具及其电控组件。
本申请实施例提供一种电动工具，包括：
主机，所述主机包括机壳，以及安装于所述机壳中的电机、开关组件和电控组件，所述电控组件分别与所述开关组件和所述电机电连接；
电池包，可拆卸地结合至所述主机上，具有与所述电控组件导电的连接状态以及与所述电控组件断开的分离状态；
所述电控组件包括：
电控单元，所述电控单元包括功率电路板，所述功率电路板采用金属基板；
安装基座，所述功率电路板与所述安装基座接触，所述安装基座上设有开口，所述安装座为金属座；
以及对接单元，所述对接单元导电连接电池包与所述电控单元，所述对接单元经所述开口插接于所述安装基座上，并与所述安装基座配合形成安装空间， 所述电控单元安装于所述安装空间中。
可选地，所述电控单元还包括控制电路板，所述控制电路板与所述功率电路板层叠设置于所述安装基座内。
可选地，所述安装基座包括底板和壁板，所述壁板沿所述底板的边缘设置，所述壁板上设有所述开口。
可选地，所述对接单元包括连接座以及设于所述连接座上的导通件，所述连接座经所述开口与所述底板插接连接，所述导通件连接所述电控组件与所述电池包；
可选地，所述导通件包括导电连接的电控导通件和电源导通件，所述功率电路板上设有导通限位件，所述导通限位件与所述电控导通件导电配合并对所述功率电路板进行限位。
可选地，所述电控组件还包括与所述壁板连接以遮挡所述开口的阻隔单元；所述阻隔单元上设有与所述开口处两侧的壁板滑动连接的卡槽。
可选地，所述安装基座还包括散热翅片，所述散热翅片设于所述底板上背离所述电控单元的一侧，所述散热翅片之间形成散热通道。
可选地，部分或全部所述散热翅片延伸至所述壁板上形成导流翅片，所述导流翅片之间形成导流通道，所述导流通道与所述散热通道连通。
可选地，所述机壳上设有进风口和出风口，所述安装基座上的导流通道与所述进风口对接设置。
可选地，所述电动工具还包括位移补偿单元，所述位移补偿单元设于所述机壳内壁与所述电控组件接触处。
本申请实施例提供一种电动工具，包括：
主机，所述主机包括机壳，以及安装于所述机壳中的电机、开关组件和电控组件，所述电控组件分别与所述开关组件和所述电机电连接；
电池包，可拆卸地结合至所述主机上，具有与所述电控组件导电的连接状态以及与所述电控组件断开的分离状态；
所述电控组件包括：
电控单元，所述电控单元包括功率电路板；
安装基座，所述安装基座上设有开口；
对接单元，所述对接单元导电连接电池包与所述电控单元，所述对接单元经所述开口插接于所述安装基座上，并与所述安装基座配合形成安装空间，所 述电控单元安装于所述安装空间中；
以及阻隔单元，所述阻隔单元插接于所述开口处以阻挡封装胶从所述开口处溢流。
可选地，所述安装基座包括底板和壁板，所述壁板沿所述底板的边缘设置；所述壁板上设有所述开口。
可选地，所述阻隔单元上设有与所述开口处两侧的壁板滑动连接的卡槽。
可选地，所述电控单元还包括控制电路板，所述控制电路板与所述功率电路板层叠设置于所述安装基座内，所述功率电路板与所述安装基座接触。
可选地，所述对接单元包括连接座以及设于所述连接座上的导通件，所述连接座与所述底板插接，所述导通件包括导电连接的电控导通件和电源导通件，所述功率电路板上设有导通限位件，所述导通限位件与所述电控导通件导电配合并对所述功率电路板进行限位。
可选地，所述导通件包括导电连接的电控导通件和电源导通件，所述功率电路板上设有导通限位件，所述导通限位件与所述电控导通件导电配合并对所述功率电路板进行限位。
可选地，所述安装基座还包括散热翅片，所述散热翅片设于所述底板上背离所述电控单元的一侧，所述散热翅片之间形成散热通道。
可选地，部分或全部所述散热翅片延伸至所述壁板上形成导流翅片，所述导流翅片之间形成导流通道，所述导流通道与所述散热通道连通。
可选地，所述机壳上设有进风口和出风口，所述安装基座上的导流通道与所述进风口对接设置。
可选地，所述电动工具还包括位移补偿单元，所述位移补偿单元设于所述机壳内壁与所述电控组件接触处。
本申请实施例提供一种电动工具，包括：
主机，所述主机包括机壳，以及安装于所述机壳中的电机、开关组件和电控组件，所述电控组件分别与所述开关组件和所述电机电连接；
电池包，可拆卸地结合至所述主机上，具有与所述电控组件导电的连接状态以及与所述电控组件断开的分离状态；
所述电控组件包括：
电控单元，所述电控单元包括功率电路板；
安装基座，所述安装基座至少对所述功率电路板进行散热，所述安装基座 上设有安装部；
以及对接单元，所述对接单元导电连接电池包与所述电控单元，所述对接单元经所述安装部与所述安装基座配合连接并形成安装空间，所述电控单元安装于所述安装空间中。
可选地，所述电控单元还包括控制电路板，所述控制电路板与所述功率电路板层叠设置于所述安装基座内，所述功率电路板与所述安装基座接触。
可选地，所述控制电路板与所述功率电路板通过电连接器插接连接。
可选地，所述安装基座包括底板和壁板，所述壁板沿所述底板的边缘设置；所述壁板上设有开口，所述开口构成所述安装部，所述对接单元经所述开口与所述底板插接。
可选地，所述电控组件还包括与所述壁板连接以遮挡所述开口的阻隔单元；所述阻隔单元上设有与所述开口处两侧的壁板滑动连接的卡槽。
可选地，所述对接单元包括连接座以及设于所述连接座上的导通件，所述导通件包括导电连接的电控导通件和电源导通件，所述功率电路板上设有导通限位件，所述导通限位件与所述电控导通件导电配合并对所述功率电路板进行限位。
可选地，所述导通限位件包括设于所述功率电路板上的连接孔，所述电控导通件适于穿入所述连接孔。
可选地，所述安装基座还包括散热翅片，所述散热翅片设于所述底板上背离所述电控单元的一侧，所述散热翅片之间形成散热通道。
可选地，部分或全部所述散热翅片延伸至所述壁板上形成导流翅片，所述导流翅片之间形成导流通道，所述导流通道与所述散热通道连通。
可选地，所述机壳上设有进风口和出风口，所述安装基座上的导流通道与所述进风口对接设置。
可选地，所述电动工具还包括位移补偿单元，所述位移补偿单元设于所述机壳内壁与所述电控组件接触处。
本申请实施例提供一种电控组件，包括：
电控单元，包括功率电路板；
安装基座，所述安装基座至少对所述功率电路板进行散热，所述安装基座上设有安装部；
以及对接单元，所述对接单元导电连接电池包与所述电控单元，所述对接 单元经所述安装部与所述安装基座配合连接并形成安装空间，所述电控单元安装于所述安装空间中。
可选地，所述电控单元还包括控制电路板，所述控制电路板与所述功率电路板层叠设置于所述安装基座内，所述功率电路板与所述安装基座接触。
可选地，所述控制电路板与所述功率电路板通过电连接器插接连接。
可选地，所述安装基座包括底板和壁板，所述壁板沿所述底板的边缘设置；所述壁板上设有开口，所述开口构成所述安装部，所述对接单元经所述开口与所述底板插接。
可选地，所述电控组件还包括与所述壁板连接以遮挡所述开口的阻隔单元；所述阻隔单元上设有与所述开口处两侧的壁板滑动连接的卡槽。
可选地，所述对接单元包括连接座以及设于所述连接座上的导通件，所述连接座与所述底板插接，所述导通件包括导电连接的电控导通件和电源导通件，所述功率电路板上设有导通限位件，所述导通限位件与所述电控导通件导电配合并对所述功率电路板进行限位。
可选地，所述导通限位件包括设于所述功率电路板上的连接孔，所述电控导通件适于穿入所述连接孔。
可选地，所述安装基座还包括散热翅片，所述散热翅片设于所述底板上背离所述电控单元的一侧，所述散热翅片之间形成散热通道。
可选地，部分或全部所述散热翅片延伸至所述壁板上形成导流翅片，所述导流翅片之间形成导流通道，所述导流通道与所述散热通道连通。
本申请中通过将对接单元、电控单元以及安装基座集成为一个整体，使得电控组件集电源导电、控制和散热为一体，提高了电动工具的集成度，减少了占用空间，有利于整机尺寸的缩小；另一方面通用性较强，适配度较高，可适用于其他类似的工具中。
附图说明
图1是一实施例提供的电动工具的整机结构示意图；
图2是图1所示的去除进风口过滤网后的整机结构示意图；
图3是图2中所示A处的局部放大图；
图4是整机打开主机机壳后的后的结构示意图；
图5是整机去除电池包和部分主机机壳后的结构示意图；
图6是一实施例提供的电控组件组装完成后的结构示意图；
图7是图6中电控组件封胶后的结构示意图；
图8是图6中电控组件去除连接导线后的结构示意图；
图9是图8的另一个角度的结构示意图；
图10是图7中的电控组件的爆炸示意图；
图11是一实施例提供的安装基座和对接单元的组装示意图；
图12是一实施例提供的安装基座的结构示意图；
图13是图12中所示的安装基座的俯视图；
图14是图12中所示的安装基座的仰视图；
图15是一实施例提供的对接单元的结构示意图；
图16是图15中对接单元的主视图；
图17是图15中对接单元的右视图；
图18是图15中对接单元的俯视图；
图19为一实施例提供的阻隔单元的结构示意图。
附图标记说明：
100-主机；110-机壳；120-进风口；130-导向肋条；140-出风口；150-位移补偿单元；160-过滤网；
200-电池包；
300-电机；310-风扇；320-开关组件；330-输出组件；
400-电控组件；
500-电控单元；510-功率电路板；511-场效应管；512-电容；513-连接孔；514-支撑柱；520-控制电路板；530-导线；540-螺钉；550-隔离柱；560-电容电路板；570-板对板连接器；
600-安装基座；610-底板；611-散热翅片；612-散热通道；620-壁板；621-导流翅片；622-导流通道；630-开口；
700-对接单元；710-连接座；711-卡槽；720-导电端子；730-导电插片；
800-阻隔单元；810-滑槽；
900-填胶腔；910-封胶层。
具体实施方式
需要说明的是，在本申请的描述中，属于“第一”、“第二”、“第三”仅用 于描述目的，而不能被理解为指示或者暗示相对重要性。
如图1和图2所示，本申请记载了一种电动工具，在一些实施例中，电动工具为一种手持式电动角磨，其包括主机100和可拆卸地结合至主机100上的电池包200。
如图5所示，本申请实施例的主机100包括机壳110以及设置于机壳110内的电机300、风扇310、开关组件320等，电机300驱动风扇310旋转并对输出组件330提供动力。
参见附图2和附图4，机壳110上设有进风口120和出风口140；其中风扇310用于产生气流并将气流排出工具机壳110外，风扇310与电机300的电机轴同轴设置随电机300的旋转而旋转。可选地，参见附图1，本实施例中的角磨还在进风口120外设置可拆卸的过滤网160以防止外界灰尘进入。
输出组件330包括输出轴以及与其配合的工具附件，本实施例中的工具附件包括磨盘(未在图中示出)。
参见附图5，本实施例还包括设于机壳110内的电控组件400，其中机壳110包括左右机壳，电控组件400卡设于左右机壳的限位筋之间，左右机壳卡合后经螺钉固定为一体。
如图5和图6所示，本实施例中的电控组件400用于连接电池包200，同时电控组件400还通过导线530分别与开关组件320和电机300电连接，开关组件320控制电机300的通断以控制整机的工作状态。
本实施例的机壳110包括前端部、手持部和后端部，电机300、风扇310和开关组件320设于手持部，输出组件330设于前端部，电控组件400设于后端部，其中后端部即为角磨与电池包200连接的展脚处。
如图6所示，本实施例的电控组件400包括电控单元500、安装基座600、对接单元700和阻隔单元800。其中对接单元700导电连接电池包200与电控单元500，安装基座600上设有安装部，对接单元700经安装部与安装基座600配合连接并形成安装空间，电控单元500安装于该安装空间中。
参见附图10，电控单元500包括功率电路板510和控制电路板520，其中控制电路板520输出控制指令以控制电机300的运转，功率电路板510和控制电路板520电连接。作为可替换的实施方式，电控组件400也可只包括一个电路板，即将功率电路板和控制电路板合并设置为一张电路板。
如图10所示，功率电路板510上设有例如场效应管511(MOS管)和电容512， 其中场效应管511用于根据控制信号控制电源和电机300的通断，电容512靠近场效应管511设置并与场效应管511共同集成于功率电路板510上，通过将电容512靠近场效应管511地和场效应管511设置于同一块电路板上，提高了电容512的滤波性能。
控制电路板520上设有微控制器，例如单片机，用于检测并控制开关机、温度以及电流等，以实现开关机控制、过温保护和过流保护。
其中，本实施例中的功率电路板510靠近或抵接安装基座600设置，功率电路板510为铝基板，铝基板的一面上形成有印刷电路并安装有电子元件，铝基板的另一面为非工作面，非工作面与安装基座600安装于底板610上并与底板610接触，由于安装基座600和功率电路板510均为铝制基座和基板，导热性能较好，由此能够及时将功率电路板510上的场效应管511产生的热量传递并散发，由此提高了电控单元500的散热效率。
如图10所示，本实施例中的控制电路板520与功率电路板510层叠设置于安装基座600内。控制电路板520与功率电路板510通过电连接器插接连接，其中电连接器采用小型板对板连接器570，板对板连接器570内设有导电连接的小型排针，示例性地，在其中一个电路板上设有母座，另一个电路板上设有与母座配合连接的公插头，由此可实现功率电路板510和控制电路板520的层叠设置，同时小型板对板连接器570插合的合高不超过4mm，由于合高较低，在满足灌胶固封要求的基础上可以降低安装基座600的壁板620的高度，由此减小了安装基座600的高度尺寸。
其中在控制电路板520和功率电路板510直接还设有至少两个间隔柱550，间隔柱550装在控制电路板520上，用于确保控制电路板520与功率电路板510之间间隔开预定距离，避免因控制电路板520对功率电路板510表面的电气元件施加作用力而导致的电气元件的故障和损坏。
独立设置功率电路板并将功率电路板紧邻安装基座设置，确保了对功率电路板的及时散热，而通过将控制电路板与功率电路板分开叠设于安装基座上，减小了板体和安装基座的底壁的尺寸；减小了安装基座的尺寸，从而有利于整机尺寸的缩小；也使得在不增加整机展脚尺寸的基础上将电控组件400安装于展脚处得以实现。同时，由于电控组件安装于机壳的握持把手内，电控组件的尺寸减小使得整机握持把手的尺寸得以缩小，从而更加方便用户的握持，使用户获得更好的使用体验。
通过将控制电路板520直接插接固定至功率电路板510上，操作简便，难度较低，省去了导线焊接等复杂工艺，由于焊接连接的可靠性较低，因此采用板对板连接器570插接提高了连接的可靠性，且组装方便有利于产线产能的提高。
作为可替换的实施方式，本实施例的功率电路板和控制电路板也可采用其他连接方式，例如导线连接，只需满足二者导电连接即可。
参见附图8-10，本实施例中还设有叠设于功率电路板510上的电容电路板560，且电容电路板560和控制电路板520在功率电路板510表面的投影不交叉。本实施例将三个电容512并联焊接于电容电路板上，再将电容电路板560与功率电路板510焊接，电容电路板560上设有插孔，功率电路板510上设有铜制支撑柱514，安装时，先将三个电容贴片焊接到电容电路板上，再将电容电路板上的插孔插入功率板510上的支撑柱上，最后通过焊接固定。通过设置电容电路板，未将三个电容直接安装于功率电路板510上，而是通过电容电路板的方式焊接固定于功率电路板510，有效地减少了功率电路板的尺寸，从而减小了安装基座的尺寸，有利于整机尺寸的缩小，例如展脚处尺寸的缩小。
可选地，电容的数量不限于三个，可根据具体需求设置，电容电路板也可采用贴片焊接的方法焊接于控制电路板520上。
本实施例的安装基座600至少对功率电路板510进行散热。如图11-图13所示，其中安装基座600包括底板610和壁板620，壁板620沿底板610的边缘设置，在壁板620上设有开口630，该开口630即构成上述安装部，对接单元700经开口630与安装基座600连接。
通过在安装基座600上设置有开口630，将对接单元700自开口630处插接于安装基座上，结构简单组装方便，在提高了集成度的基础上简化了组装工艺流程。
本实施例的安装基座600还包括散热翅片611和导流翅片621，其中如图14所示，散热翅片611设于底板610上背离电控单元500的一侧，散热翅片611之间形成散热通道612。
参见附图12-14，本实施例中部分散热翅片611延伸至壁板620上形成导流翅片621，导流翅片621之间形成导流通道622，导流通道622与散热通道612连通。外部气流经主机机壳110上的进风口120进入导流通道622后，经导流通道进入散热通道612。
其中，本实施例中的散热翅片611和导流翅片621均为凸出安装基座600设置 的肋条，本实施例中的安装基座600为铝质材料，散热翅片611和导流翅片621均为与安装基座600一体成型。
通过在与功率电路板接触的底板上设置散热翅片形成散热通道，提高了散热效果和散热效率，实现了对功率元件的有效散热，而通过设置有导流翅片和导流通道，能够及时有效地将外部气流顺利导入工具内，提高了安装基座背面气流的流通速度，提高了散热效果，确保了电路的电气性能。
作为可替换的实施方式，也可设置全部散热翅片611均延伸至相邻壁板620上形成导流翅片621。
作为另一种可替换的实施方式，也可在底板610和壁板620上分别设置相互独立的散热翅片611和导流翅片621，只需满足导流翅片产生的导流通道分别与进风口和散热通道对接即可。
导流通道622引导外部气流进入机壳110内部的同时，也带走了壁板620上的热量，因此导流通道622同样也起到散热的作用；另外，散热翅片611和导流翅片621的方向改变处均具有弧形的过渡段，以有利于气流的顺利流动。
其中散热通道612的出口方向可沿机壳110内的散热气流流动路径方向设置，以引导散热通道612内的气流顺利沿主机100内的散热气流流动路径移动，避免由于设置方向不同而引起的阻碍整机内散热气流流通的情况。
如图2-图4所示，本实施例中的进风口120处设有导向肋条130，其中本实施例中的导流翅片621与导向肋条130对应设置，以使得进风口120与导流通道622对接，由此确保外部空气可经进风口120直接进入导流通道622，并由导流通道622迅速进入散热通道612，以有利于整机机壳110内冷却气流的迅速及顺利流通，从而快速带走功率电路板510上产生的热量，提高散热效率。
如图15所示，本实施例的对接单元700包括导通件和连接座710，导通件设于连接座710上，参见附图11，其中连接座710经开口630与安装基座600的底板610插接。
如图15-图18所示，本实施例中在连接座710上设置有与底板610相适配的卡槽711，连接座710沿平行于底板610的表面方向插置于安装基座600上，其中底板610插置于卡槽711中，当连接座710相对于安装基座600插接到位后，连接座710和安装基座600配合连接形成的空间即为功率电路板510和控制电路板520的安装空间。
本实施例的导通件导电连接电池包200与电控单元500，其中导通件包括电 控导通件和电源导通件，电控导通件与电源导通件互相导电连接。参见附图15和附图17，其中电控导通件包括设于连接座710一端的且裸露于连接座710外的导电端子720，导电端子720用于与电控单元500导电，电源导通件包括设于连接座710另一端的且裸露于连接座710外的导电插片730，导电插片730用于与电池包200的连接端口导电连接。参见附图11，当连接座710与安装基座600的底板610组装完成后，导电端子720和导电插片730分别位于底板610的两侧。
使用时，将电池包沿主机导向筋插入并与导电端子720导电接通，参见附图5可知，本实施例中的电控组件400的导电插片730需与电池包插接，因此本实施例的控制电路板520、功率电路板510以及安装基座600的底板610大致平行于电池包的插拔方向，示例性地，机壳110的后端部包括与电池包200插接配合的插拔面，功率电路板510、控制电路板520以及安装基座600的底板610均沿平行于插拔面设置。正由于本申请中的上述设置使得功率电路板510的尺寸得以减小，才允许在不增加整机展脚尺寸的基础上将电控组件400安装于展脚处。
本实施例中的功率电路板510上还设有与导电端子720导电配合的并对功率电路板510进行限位的导通限位件，示例性地，参见附图10，该导通限位件包括设于功率电路板510上的连接孔513，其中功率板510通过连接孔513与导电端子720对接后再通过焊接与导电端子720固定并导电连通。
如图10所示，组装时，将功率电路板510沿导电端子720的轴向穿入后通过螺钉540固定于安装基座600的底板610上，两个螺钉540依次穿过控制电路板，间隔柱550和功率电路板510后固定在安装底座600上。由于设置有上述连接孔513，因此安装时，实现了对功率电路板510组装的自动导向和定位，简化了功率电路板510的组装操作流程，提高了产线的产能。
如图7-图10所示，本实施例中的电控组件400还包括阻隔单元800，阻隔单元800与壁板620连接以遮挡开口630，其中参见附图9，阻隔单元800在与安装基座600装配后其一端部抵接于功率电路板510和连接座710上，另一端部大致与其两侧的壁板620的端部持平，此时阻隔单元800与安装基座600装配后，阻隔单元800的内壁、安装基座600的壁板以及电控单元的表面围合形成填胶腔900。
参见附图9和19，阻隔单元800的两侧分别设有滑槽810，阻隔单元800通过滑槽810与开口630处两侧的壁板620滑动插接，组装时，阻隔单元800沿平行于壁板620的方向插入最终抵接于功率电路板510的表面，然后对位于填胶腔900内的电子元件进行灌胶操作形成封胶层910，封胶层910封装元器件裸露的导电管 脚，由此实现对电子元件的固封，通常密封胶采用环氧树脂，以实现对电气元件的防水、防尘、防腐蚀、密封和导热，从而确保整机的机械强度，避免电气性能的下降。通过在阻隔单元上设置与壁板滑动连接的滑槽，阻隔单元与壁板滑动连接，连接简单组装方便，从而能简化了组装工艺。
本实施例中在机壳110的后端部的内壁还设有位移补偿单元150，其中位移补偿单元150设置于机壳110内壁与电控组件400接触处，示例性地，参见附图5，位移补偿单元150可为弹性垫圈或者弹性垫片，由于本实施例中的电控组件400上直接集成有导电插片730。相较于导线连接，本实施例中的导电插片730与电池包200的连接为硬连接，因此为了避免在工具使用过程中的震动引起导电插片730相对电池包200的接口产生相对移动，从而导致导电插片730与电池包200接触不良或者接口损坏的情况发生，通过设置有弹性的位移补偿单元150，可使得电控组件400与机壳110的内壁为弹性接触，当工具使用过程中产生振动时，电控组件400可通过位移补偿单元150产生微小的位移补偿，以避免导电插片730与电池包200接口产生较大的相对移动，从而提高了工具的使用寿命和用户的使用体验度。
作为可替换的实施方式，本实施例的电控组件也可应用于其他手持式电动工具，例如电钻、螺丝批、砂光机、扳手、抛光机、枪钻、电锤、电镐等工作电流在20A-45A，最大允许工作电流在65A左右的电动工具。
本申请中通过将对接单元、电控单元以及安装基座集成为一个整体，该电控组件既能够实现主机与电源的接通，又可以实现对电控单元的散热，集电源导电、控制和散热为一体，提高了集成度，减少了占用空间，有利于整机尺寸的缩小；另一方面通用性较强，适配度较高，可适用于其他类似的工具中。
本实施例中的电控组件的组装方法如下：
(1)组装对接单元与安装基座，形成电控单元的安装空间：
将对接单元700的连接座710自安装基座600的开口630处插接固定于安装基座600的底板610上，使得安装基座的底板610插置于连接座710的卡槽711内；其中对接单元沿平行于安装基座底板610的方向与安装基座600插接。
(2)在安装空间内安装固定电控单元：
将电控单元500的功率电路板510沿对接单元的导电端子720插入后固定至安装基座的底板610上；其中功率电路板510沿垂直于安装基座底板610的方向安装至安装基座600上，安装到位后再通过螺钉540与底板610固定连接；
将电控单元的控制电路板520与功率电路板510导电连通：
将控制电路板520的公插头或母插座插入至功率电路板510的母插座或公插头上。
(3)对安装基座600的开口630进行遮挡：
将阻隔单元800沿垂直于底板610方向使得壁板620插入阻隔单元800的滑槽810内，阻隔单元800与壁板620插接到位后遮挡住开口630。
(4)对电控单元进行固封：
在阻隔单元800与安装基座600围合形成的填胶腔内进行灌胶形成封胶层910。
当电控组件400组装完成后，将该电控组件400安装至主机100机壳内的步骤为：
在机壳110内壁与电控组件400接触的位置处预设预定数量的位移补偿单元150，例如将弹性垫圈或弹性垫片卡设于预设卡槽中。
将该电控组件400安装至左机壳或右机壳内并由机壳内壁的限位筋固定，将该电控组件400上的延伸导线与开关组件320或者电机300固定连接；其中主机100内的其他结构件的安装方式可参照相关技术，在此不做赘述。
将另一半机壳与上述机壳卡合并通过螺钉固定锁紧。
本申请通过在安装基座上设有允许对接单元插入的开口，通过简单的插接即可完成对接单元和安装基座的组装，组装完成后将功率电路板沿导电端子穿入固定至安装基座即可，由于对接单元上的导电端子即对功率电路板的安装起到限位和导向的作用，因此简化了功率电路板的组装难度且提高了其操作的便捷性和准确性，最终提高了组装效率，实现了产能的提升。

Claims (40)

  1. 一种电动工具，包括：
    主机，所述主机包括机壳，以及安装于所述机壳中的电机、开关组件和电控组件，所述电控组件分别与所述开关组件和所述电机电连接；
    电池包，可拆卸地结合至所述主机上，具有与所述电控组件导电的连接状态以及与所述电控组件断开的分离状态；
    所述电控组件包括：
    电控单元，所述电控单元包括功率电路板，所述功率电路板采用金属基板；
    安装基座，所述功率电路板与所述安装基座接触，所述安装基座上设有开口，所述安装座为金属座；
    以及对接单元，所述对接单元导电连接电池包与所述电控单元，所述对接单元经所述开口插接于所述安装基座上，并与所述安装基座配合形成安装空间，所述电控单元安装于所述安装空间中。
  2. 根据权利要求1所述的电动工具，其中：所述电控单元还包括控制电路板，所述控制电路板与所述功率电路板层叠设置于所述安装基座内。
  3. 根据权利要求2所述的电动工具，其中：所述安装基座包括底板和壁板，所述壁板沿所述底板的边缘设置，所述壁板上设有所述开口。
  4. 根据权利要求3所述的电动工具，其中：所述对接单元包括连接座以及设于所述连接座上的导通件，所述连接座经所述开口与所述底板插接连接，所述导通件连接所述电控组件与所述电池包；
  5. 根据权利要求4所述的电动工具，其中：所述导通件包括导电连接的电控导通件和电源导通件，所述功率电路板上设有导通限位件，所述导通限位件与所述电控导通件导电配合并对所述功率电路板进行限位。
  6. 根据权利要求3所述的电动工具，其中：所述电控组件还包括与所述壁板连接以遮挡所述开口的阻隔单元；所述阻隔单元上设有与所述开口处两侧的壁板滑动连接的卡槽。
  7. 根据权利要求3-6任意一项所述的电动工具，其中：所述安装基座还包括散热翅片，所述散热翅片设于所述底板上背离所述电控单元的一侧，所述散热翅片之间形成散热通道。
  8. 根据权利要求7所述的电动工具，其中：部分或全部所述散热翅片延伸至所述壁板上形成导流翅片，所述导流翅片之间形成导流通道，所述导流通道与所述散热通道连通。
  9. 根据权利要求8所述的电动工具，其中：所述机壳上设有进风口和出风口，所述安装基座上的导流通道与所述进风口对接设置。
  10. 根据权利要求9所述的电动工具，还包括：位移补偿单元，所述位移补偿单元设于所述机壳内壁与所述电控组件接触处。
  11. 一种电动工具，包括：
    主机，所述主机包括机壳，以及安装于所述机壳中的电机、开关组件和电控组件，所述电控组件分别与所述开关组件和所述电机电连接；
    电池包，可拆卸地结合至所述主机上，具有与所述电控组件导电的连接状态以及与所述电控组件断开的分离状态；
    所述电控组件包括：
    电控单元，所述电控单元包括功率电路板；
    安装基座，所述安装基座上设有开口；
    对接单元，所述对接单元导电连接电池包与所述电控单元，所述对接单元经所述开口插接于所述安装基座上，并与所述安装基座配合形成安装空间，所述电控单元安装于所述安装空间中；
    以及阻隔单元，所述阻隔单元插接于所述开口处以阻挡封装胶从所述开口处溢流。
  12. 根据权利要求11所述的电动工具，其中：所述安装基座包括底板和壁板，所述壁板沿所述底板的边缘设置；所述壁板上设有所述开口。
  13. 根据权利要求12所述的电动工具，其中：所述阻隔单元上设有与所述开口处两侧的壁板滑动连接的卡槽。
  14. 根据权利要求12所述的电动工具，其中：所述电控单元还包括控制电路板，所述控制电路板与所述功率电路板层叠设置于所述安装基座内，所述功率电路板与所述安装基座接触。
  15. 根据权利要求14所述的电动工具，其中：所述对接单元包括连接座以及设于所述连接座上的导通件，所述连接座与所述底板插接，所述导通件包括导电连接的电控导通件和电源导通件，所述功率电路板上设有导通限位件，所述导通限位件与所述电控导通件导电配合并对所述功率电路板进行限位。
  16. 根据权利要求15所述的电动工具，其中：所述导通件包括导电连接的电控导通件和电源导通件，所述功率电路板上设有导通限位件，所述导通限位件与所述电控导通件导电配合并对所述功率电路板进行限位。
  17. 根据权利要求12-16任意一项所述的电动工具，其中：所述安装基座还包括散热翅片，所述散热翅片设于所述底板上背离所述电控单元的一侧，所述散热翅片之间形成散热通道。
  18. 根据权利要求17所述的电动工具，其中：部分或全部所述散热翅片延伸至所述壁板上形成导流翅片，所述导流翅片之间形成导流通道，所述导流通道与所述散热通道连通。
  19. 根据权利要求18所述的电动工具，其中：所述机壳上设有进风口和出风口，所述安装基座上的导流通道与所述进风口对接设置。
  20. 根据权利要求19所述的电动工具，还包括：位移补偿单元，所述位移补偿单元设于所述机壳内壁与所述电控组件接触处。
  21. 一种电动工具，包括：
    主机，所述主机包括机壳，以及安装于所述机壳中的电机、开关组件和电控组件，所述电控组件分别与所述开关组件和所述电机电连接；
    电池包，可拆卸地结合至所述主机上，具有与所述电控组件导电的连接状态以及与所述电控组件断开的分离状态；
    所述电控组件包括：
    电控单元，所述电控单元包括功率电路板；
    安装基座，所述安装基座至少对所述功率电路板进行散热，所述安装基座上设有安装部；
    以及对接单元，所述对接单元导电连接电池包与所述电控单元，所述对接单元经所述安装部与所述安装基座配合连接并形成安装空间，所述电控单元安装于所述安装空间中。
  22. 根据权利要求21所述的电动工具，其中：所述电控单元还包括控制电路板，所述控制电路板与所述功率电路板层叠设置于所述安装基座内，所述功率电路板与所述安装基座接触。
  23. 根据权利要求22所述的电动工具，其中：所述控制电路板与所述功率电路板通过电连接器插接连接。
  24. 根据权利要求21-23任意一项所述的电动工具，其中：所述安装基座包括底板和壁板，所述壁板沿所述底板的边缘设置；所述壁板上设有开口，所述开口构成所述安装部，所述对接单元经所述开口与所述底板插接。
  25. 根据权利要求24所述的电动工具，其中：所述电控组件还包括与所述壁 板连接以遮挡所述开口的阻隔单元；所述阻隔单元上设有与所述开口处两侧的壁板滑动连接的卡槽。
  26. 根据权利要求25所述的电动工具，其中：所述对接单元包括连接座以及设于所述连接座上的导通件，所述导通件包括导电连接的电控导通件和电源导通件，所述功率电路板上设有导通限位件，所述导通限位件与所述电控导通件导电配合并对所述功率电路板进行限位。
  27. 根据权利要求26所述的电动工具，其中：所述导通限位件包括设于所述功率电路板上的连接孔，所述电控导通件适于穿入所述连接孔。
  28. 根据权利要求25-27任意一项所述的电动工具，其中：所述安装基座还包括散热翅片，所述散热翅片设于所述底板上背离所述电控单元的一侧，所述散热翅片之间形成散热通道。
  29. 根据权利要求28所述的电动工具，其中：部分或全部所述散热翅片延伸至所述壁板上形成导流翅片，所述导流翅片之间形成导流通道，所述导流通道与所述散热通道连通。
  30. 根据权利要求29所述的电动工具，其中：所述机壳上设有进风口和出风口，所述安装基座上的导流通道与所述进风口对接设置。
  31. 根据权利要求30所述的电动工具，还包括：位移补偿单元，所述位移补偿单元设于所述机壳内壁与所述电控组件接触处。
  32. 一种电控组件，包括：
    电控单元，包括功率电路板；
    安装基座，所述安装基座至少对所述功率电路板进行散热，所述安装基座上设有安装部；
    以及对接单元，所述对接单元导电连接电池包与所述电控单元，所述对接单元经所述安装部与所述安装基座配合连接并形成安装空间，所述电控单元安装于所述安装空间中。
  33. 根据权利要求32所述的电控组件，其中：所述电控单元还包括控制电路板，所述控制电路板与所述功率电路板层叠设置于所述安装基座内，所述功率电路板与所述安装基座接触。
  34. 根据权利要求33所述的电控组件，其中：所述控制电路板与所述功率电路板通过电连接器插接连接。
  35. 根据权利要求32-34任意一项所述的电控组件，其中：所述安装基座包 括底板和壁板，所述壁板沿所述底板的边缘设置；所述壁板上设有开口，所述开口构成所述安装部，所述对接单元经所述开口与所述底板插接。
  36. 根据权利要求35所述的电控组件，还包括：与所述壁板连接以遮挡所述开口的阻隔单元；所述阻隔单元上设有与所述开口处两侧的壁板滑动连接的卡槽。
  37. 根据权利要求35所述的电控组件，其中：所述对接单元包括连接座以及设于所述连接座上的导通件，所述连接座与所述底板插接，所述导通件包括导电连接的电控导通件和电源导通件，所述功率电路板上设有导通限位件，所述导通限位件与所述电控导通件导电配合并对所述功率电路板进行限位。
  38. 根据权利要求37所述的电控组件，其中：所述导通限位件包括设于所述功率电路板上的连接孔，所述电控导通件适于穿入所述连接孔。
  39. 根据权利要求36-38任意一项所述的电控组件，其中：所述安装基座还包括散热翅片，所述散热翅片设于所述底板上背离所述电控单元的一侧，所述散热翅片之间形成散热通道。
  40. 根据权利要求39所述的电控组件，其中：部分或全部所述散热翅片延伸至所述壁板上形成导流翅片，所述导流翅片之间形成导流通道，所述导流通道与所述散热通道连通。
PCT/CN2020/077756 2019-12-30 2020-03-04 电动工具及其电控组件 WO2021134905A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20910134.4A EP4046754B1 (en) 2019-12-30 2020-03-04 Electric tool and electric control assembly thereof
US17/744,146 US20220271624A1 (en) 2019-12-30 2022-05-13 Power tool and electronic control device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911394525.7 2019-12-30
CN201911394525 2019-12-30

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/744,146 Continuation US20220271624A1 (en) 2019-12-30 2022-05-13 Power tool and electronic control device

Publications (1)

Publication Number Publication Date
WO2021134905A1 true WO2021134905A1 (zh) 2021-07-08

Family

ID=76686354

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/077756 WO2021134905A1 (zh) 2019-12-30 2020-03-04 电动工具及其电控组件

Country Status (3)

Country Link
US (1) US20220271624A1 (zh)
EP (1) EP4046754B1 (zh)
WO (1) WO2021134905A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220295657A1 (en) * 2021-03-15 2022-09-15 Milwaukee Electric Tool Corporation Potting boat heat sink

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101758488A (zh) * 2008-10-30 2010-06-30 苏州宝时得电动工具有限公司 电动工具以及电动工具和电池包的组合
JP5086835B2 (ja) * 2008-02-20 2012-11-28 パナソニック株式会社 電動工具
CN206632411U (zh) * 2017-03-23 2017-11-14 博世电动工具（中国）有限公司 电动工具及其电路板组件
JP2017213620A (ja) * 2016-05-30 2017-12-07 マックス株式会社 工具

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7443137B2 (en) * 2000-08-11 2008-10-28 Milwaukee Electric Tool Corporation Adapter for a power tool battery
JP2006325395A (ja) * 2005-05-17 2006-11-30 Milwaukee Electric Tool Corp 動力工具、バッテリ、充電器、およびそれらを動作させる方法
JP5796741B2 (ja) * 2011-05-19 2015-10-21 日立工機株式会社 電動工具
JP2014525840A (ja) * 2011-07-24 2014-10-02 株式会社マキタ 動力工具用アダプタ、動力工具システム及びそのメンテナンス情報を無線通信する方法
US9450471B2 (en) * 2012-05-24 2016-09-20 Milwaukee Electric Tool Corporation Brushless DC motor power tool with combined PCB design
TWI676348B (zh) * 2018-05-25 2019-11-01 車王電子股份有限公司 電動工具
CN113168979B (zh) * 2018-12-12 2024-01-09 阿尔卑斯阿尔派株式会社 装置以及开关装置
TWI758581B (zh) * 2019-01-30 2022-03-21 車王電子股份有限公司 電動工具

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5086835B2 (ja) * 2008-02-20 2012-11-28 パナソニック株式会社 電動工具
CN101758488A (zh) * 2008-10-30 2010-06-30 苏州宝时得电动工具有限公司 电动工具以及电动工具和电池包的组合
JP2017213620A (ja) * 2016-05-30 2017-12-07 マックス株式会社 工具
CN206632411U (zh) * 2017-03-23 2017-11-14 博世电动工具（中国）有限公司 电动工具及其电路板组件

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4046754A4

Also Published As

Publication number Publication date
EP4046754A4 (en) 2023-01-25
EP4046754B1 (en) 2024-03-27
EP4046754A1 (en) 2022-08-24
US20220271624A1 (en) 2022-08-25

Similar Documents

Publication Publication Date Title
US20180174773A1 (en) Electric tool
JP2007280353A (ja) アダプタボードと該アダプタボードを備えたモジュラー転送インターフェイスと該モジュラー転送インターフェイスを備えたコンピュータ装置
JP2016022543A (ja) 電動工具
WO2021134905A1 (zh) 电动工具及其电控组件
ES2913790T3 (es) Dispositivo para accionamiento de motor
US11664703B2 (en) Power and home tools
JP6767761B2 (ja) インバータ一体型電動圧縮機
CN212044554U (zh) 电动工具
CN211681921U (zh) 电动工具
CN113119037A (zh) 电动工具
CN113119036A (zh) 电动工具
CN214660950U (zh) 一种免焊接发光散热风扇
CN115922551A (zh) 电动工具
CN210863806U (zh) 测试用插座模组
CN216721209U (zh) 一种集成控制开关及具有其的电动工具
CN202633092U (zh) 电动工具的调速开关
CN217387655U (zh) 车载插座
CN221689062U (zh) 一种伺服电机控制器
CN112467826A (zh) 充电装置
CN117041755B (zh) 一种高密度2.5g电口与40g光口交换机及方法
CN215579373U (zh) 电脑风扇连接器的结构
CN211456886U (zh) 马达装置
CN220606396U (zh) 一种散热性能高的远程io控制器
CN218888893U (zh) 一种易于安装的电机内置驱动器及电机
CN219513465U (zh) 一种集线器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20910134

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020910134

Country of ref document: EP

Effective date: 20220516

NENP Non-entry into the national phase

Ref country code: DE