WO2022135296A1 - 切割工具 - Google Patents

切割工具 Download PDF

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Publication number
WO2022135296A1
WO2022135296A1 PCT/CN2021/139118 CN2021139118W WO2022135296A1 WO 2022135296 A1 WO2022135296 A1 WO 2022135296A1 CN 2021139118 W CN2021139118 W CN 2021139118W WO 2022135296 A1 WO2022135296 A1 WO 2022135296A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting tool
motor
liquid storage
housing
liquid
Prior art date
Application number
PCT/CN2021/139118
Other languages
English (en)
French (fr)
Inventor
王荣
王少君
Original Assignee
南京泉峰科技有限公司
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 南京泉峰科技有限公司 filed Critical 南京泉峰科技有限公司
Publication of WO2022135296A1 publication Critical patent/WO2022135296A1/zh
Priority to US18/299,527 priority Critical patent/US20230241696A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D59/00—Accessories specially designed for sawing machines or sawing devices
    • B23D59/02—Devices for lubricating or cooling circular saw blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/06—Grinders for cutting-off
    • B24B27/08—Grinders for cutting-off being portable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B9/00—Portable power-driven circular saws for manual operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
    • B23D45/16—Hand-held sawing devices with circular saw blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
    • B23D47/12—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of drives for circular saw blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D59/00—Accessories specially designed for sawing machines or sawing devices
    • B23D59/001—Measuring or control devices, e.g. for automatic control of work feed pressure on band saw blade
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/007—Cleaning of grinding wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
    • B24B55/03—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant designed as a complete equipment for feeding or clarifying coolant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/04—Protective covers for the grinding wheel
    • B24B55/05—Protective covers for the grinding wheel specially designed for portable grinding machines
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/623—Portable devices, e.g. mobile telephones, cameras or pacemakers
    • H01M10/6235—Power tools
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6562—Gases with free flow by convection only

Definitions

  • the present application relates to power tools, such as a cutting tool.
  • the cutting tool is used to cut the workpiece and is provided with a base plate for assisting the cutting action.
  • the cutting tool in the related art is bulky, and the performance of the motor is not conducive to long-term operation.
  • the present application provides a cutting tool, the overall structure of the cutting tool is optimized, and the performance is improved, so that the cutting tool is small in size and convenient to operate.
  • a cutting tool comprising: a casing; a motor supported by the casing; an accessory mounting part, including an output part connected to a grinding disc; a transmission mechanism, connected to the motor and the output part; a bottom plate, arranged on the The bottom of the casing has a mounting hole for the grinding disc to pass through; wherein, the cutting tool further includes: a liquid storage system, including a liquid storage device, configured to store liquid, and the liquid storage device is detachably mounted to the casing On; the motor is a brushless motor, and the minimum speed of the motor is not less than 7000 rpm.
  • a cutting tool comprising: a casing; a motor supported by the casing; an accessory mounting part, including an output part connected to a grinding disc; a transmission mechanism, connected to the motor and the output part; a bottom plate, arranged on the casing
  • the bottom of the body has a mounting hole for the grinding disc to pass through;
  • the cutting tool further includes: a power interface, which is configured to be detachably connected to a power supply device; a liquid storage system, including a liquid storage device, which is configured to store liquid, and the storage
  • a hydraulic device is detachably mounted to the housing.
  • a cutting tool comprising: a casing; a motor supported by the casing; an accessory mounting part, including an output part connected to a grinding disc; a transmission mechanism, connected to the motor and the output part; a bottom plate, arranged on the casing
  • the bottom of the body has a mounting hole for the grinding disc to pass through;
  • the cutting tool further comprises: a liquid storage system, including a liquid storage device, which is configured to store liquid, and the liquid storage device is detachably mounted on the casing ;
  • the system control part is arranged on the liquid circulation path of the liquid storage system to control the flow state of the liquid in the liquid storage device.
  • a cutting tool comprising: a casing; a motor, arranged in the casing, to provide driving force for the cutting tool; an operating element, which can be triggered by a user to have multiple operating states; a liquid storage system, comprising: a liquid storage device on the housing and a guide for guiding the flow direction of the liquid; a system control member, arranged on the liquid flow path of the liquid storage system, to control the flow state of the liquid in the liquid storage device; a controller, At least electrically connected with the operating element and the system control part; the controller is configured to: acquire control signals output by the operating element in different operating states; when acquiring the first control signal, control the The system control part is turned on to start the liquid storage system; when the second control signal is obtained, the motor is controlled to rotate.
  • a cutting tool comprising: a casing; a motor arranged in the casing to provide driving force for the cutting tool; a liquid storage system, including a liquid storage device mounted on the casing and a liquid storage device for guiding the flow direction of the liquid a guide part; a system control part, arranged on the liquid flow path of the liquid storage system, to control the flow state of the liquid in the liquid storage device; an operating element, which can be triggered by a user to have a variety of operating states; the operation When the element is in the first operating state, the system control element can be triggered to open to start the liquid storage system; when the operating element is in the second operating state, the motor can be triggered to rotate.
  • a cutting tool comprising: a casing; a motor supported by the casing; an accessory mounting part, including an output part connected to a grinding disc; a transmission mechanism, connected to the motor and the output part; a bottom plate, arranged on the casing
  • the bottom of the body is provided with a mounting hole for the grinding disc to pass through; wherein, the casing includes a shield; the shield is arranged on the upper side of the bottom plate.
  • FIG. 1 is a schematic perspective view of a cutting tool in an embodiment of the present application.
  • Fig. 2 is a perspective view of another angle of the cutting tool in Fig. 1;
  • Fig. 3 is a perspective view of another angle of the cutting tool in Fig. 1;
  • Fig. 4 is the internal structure schematic diagram of cutting tool in Fig. 1;
  • Figure 5a is a schematic cross-sectional view of a part of the structure of the cutting tool in Figure 1;
  • Fig. 5b is a partial enlarged view of part D in Fig. 5a;
  • Fig. 6 is the schematic diagram of the air inlet and air outlet of the cutting tool in Fig. 1;
  • Fig. 7 is the internal structure schematic diagram of cutting tool in Fig. 1;
  • Fig. 8 is the schematic diagram of the water supply system and grinding disc of the cutting tool in Fig. 1;
  • Fig. 9 is the schematic diagram of the water supply system of the cutting tool in Fig. 1;
  • FIG 10 is a schematic diagram of the kettle and connection device of the cutting tool in Figure 1;
  • Figure 11 is an enlarged schematic view of the connecting device of the cutting tool in Figure 1;
  • Figure 12 is a graph of water flow rate and time for the kettle of the cutting tool in Figure 1;
  • Figure 13 is a schematic view of the bottom plate of the cutting tool in Figure 1;
  • Figure 14 is a schematic diagram of the fender inclination angle of the cutting tool in Figure 1;
  • Figure 15 is a schematic view of the height of the fender of the cutting tool in Figure 1;
  • Fig. 16 is the angle schematic diagram of the included angle between the end of the water supply pipe of the cutting tool and the grinding disc in Fig. 1;
  • Fig. 17 is the schematic diagram of the waterproof part of the cutting tool in Fig. 1;
  • FIG. 18 is a schematic diagram of a bottom plate of a cutting tool in this embodiment.
  • Figure 19 is a schematic diagram of a control system of the cutting tool in Figure 1;
  • Figure 20 is a schematic diagram of a control system of the cutting tool in Figure 1;
  • Figure 21 is a schematic diagram of a control system of the cutting tool in Figure 1;
  • Figure 22 is a schematic diagram of a control system of the cutting tool in Figure 1;
  • Figure 23 is a schematic diagram of a control system of the cutting tool in Figure 1;
  • Fig. 24 is the control method flow chart of cutting tool among Fig. 1;
  • Figure 25 is a schematic perspective view of a cutting tool in one embodiment of the present application.
  • Figure 26 is a schematic perspective view of the cutting tool of Figure 25 from another angle;
  • Fig. 27 is a perspective view of an angle of the partial structure of the cutting tool in Fig. 25;
  • Figure 28 is a perspective view of another angle of the partial structure of the cutting tool in Figure 25;
  • Figure 29 is a schematic diagram of a part of the structure of the cutting tool in Figure 25;
  • FIG. 30 is a schematic perspective view of the cutting tool of FIG. 25 from another angle.
  • a cutting tool 100 is provided, which can be, for example, a marble machine, which can be used to cut workpieces such as stone materials, and grind and cut the stone materials by driving the grinding disc 131 to rotate.
  • the cutting tool 100 includes: a housing 110 , a motor 120 , an accessory mounting part 130 and a transmission mechanism 140 , the motor 120 is supported by the housing 110 , the accessory mounting part 130 includes an output member 1311 connected to the grinding disc 131 , and the transmission mechanism 140 connects the output member and the motor 120.
  • the cutting tool 100 also includes a power interface 150 configured to be connected to a power source.
  • the power source may be AC mains.
  • the power source is a DC power source, such as a battery pack
  • the power interface 150 may also be referred to as a battery pack interface 150 .
  • the battery pack interface 150 is detachably connected to the battery pack 200 .
  • the battery pack 200 can supply power to the motor 120, and the motor 120 rotates and drives the output member to rotate through the transmission mechanism 140, so that the grinding disc 131 can grind and cut the workpiece.
  • the cutting surface of the grinding disc 131 is provided with metal particles, and the workpiece is cut by the metal particles.
  • the cutting tool 100 further includes a bottom plate 111 extending along the first plane 105 and disposed at the bottom of the housing 110 .
  • the bottom plate 111 has a mounting hole 1116 through which the grinding disc 131 passes.
  • the bottom plate 111 can assist the user in cutting, and the grinding disc 131 passes through the mounting hole 1116 and can rotate relative to the bottom plate 111 .
  • the mounting hole 1116 may be a closed or semi-closed slot.
  • the front end of the bottom plate 111 is further provided with a sawing indicator, which can indicate the first straight line 108 formed by the vertical projection of the grinding disc 131 to the bottom plate 111 , and the cutting tool 100 can cut along the direction of the first straight line 108 .
  • the vertical projection of the grinding plate 131 to the bottom plate 111 refers to the vertical projection of the grinding plate 131 when the bottom plate 111 is placed horizontally and the grinding plate 131 is perpendicular to the bottom plate 111 .
  • the housing 110 forms a motor accommodating part 112 and a gripping part 113 , the motor accommodating part 112 is configured to place the motor 120 , and the gripping part 113 is for a user to hold and operate the cutting tool 100 .
  • the battery pack interface 150 is disposed at the rear end of the motor accommodating portion 112 , the accessory mounting portion 130 is disposed at the side end of the motor accommodating portion 112 , and the rear end of the motor accommodating portion 112 refers to the direction opposite to the front end of the cutting tool 100 where the sawing indicator is located. . Because the size of the grinding disc 131 is small, the battery pack interface 150 can be disposed at the rear end of the motor accommodating portion 112 .
  • the battery pack 200 is installed to the battery pack interface 150 , the battery pack 200 is disposed at the rear end of the motor accommodating portion 112 , And along the projection of the direction of the first straight line 108 , the grinding disc 131 and the battery pack 200 have overlapping parts, so that the overall structure of the cutting tool 100 is compact.
  • the cutting tool 100 further includes a control board 160 that can control the operation of the motor 120 .
  • the battery pack 200 is disposed at the rear end of the motor accommodating portion 112
  • the control board 160 is disposed at the front end of the motor accommodating portion 112
  • the control board 160 is located in the housing 110 .
  • the control board 160 may also be disposed at the upper end or the lower end or the rear end of the motor accommodating part 112 .
  • the cutting tool 100 further includes a trigger 107. When the user presses the trigger 107, the control board 160 controls the motor 120 to turn on, and the cutting tool 100 starts to drive the grinding disc 131 to rotate.
  • the cutting tool 100 includes a first air inlet 101 and a first air outlet 102 , the first air inlet 101 is disposed at the rear end of the housing 110 , and the first air outlet 102 is disposed in the motor accommodating portion 112 At the front end, part of the airflow can enter the interior of the casing 110 from the first air inlet 101 and flow through the battery pack interface 150 .
  • the battery pack 200 is installed on the battery pack interface 150. When power is supplied to the cutting tool 100, the temperature rise at the pole piece of the battery pack 200 is relatively high, and the air flow entering the casing 110 from the first air inlet 101 can effectively cool the battery pack. 200 and the battery pack 200 pole pieces dissipate heat to prevent the battery pack 200 from overheating.
  • the cutting tool 100 includes a second air inlet 103 and a second air outlet 104 .
  • the second air inlet 103 is disposed at the battery pack interface 150
  • the second air outlet 104 is disposed at the lower end of the motor accommodating portion 112 .
  • the battery pack 200 includes a battery pack case 205 and a battery cell disposed inside the battery pack case 205 .
  • the battery pack case 205 includes a first vent 201 and a second vent 202 .
  • the battery pack 200 is installed to the battery pack interface 150 .
  • the second vent 202 and the second air inlet 103 communicate with each other.
  • the cutting tool also includes a connecting channel 203, one end of the connecting channel 203 is connected to the second vent 202 or the second air inlet 103, and the other end is connected to the fifth vent 1212 on the motor housing 121, so that part of the air flow can flow from the first A vent 201 enters the inside of the battery pack casing 205 , and after dissipating heat from the battery cells, flows to the second air inlet 103 through the second vent 202 , and flows into the motor casing 121 along the connecting channel 203 . That is to say, the airflow after heat dissipation for the battery pack 200 can be reused to dissipate heat for the motor based on the connection channel 203 .
  • the airflow entering the interior of the motor 120 from the first air inlet 101 and the second air inlet 103 can be discharged from the casing through the first air outlet 102 and the second air outlet 104 .
  • the first air outlet 102 is disposed at the front end of the motor accommodating part 112 , and part of the airflow is discharged from the front end of the motor accommodating part 112 , which can waterproof the front end of the casing 110 and blow out the mud at the front end of the casing 110 .
  • the second air outlet 104 is disposed below the motor accommodating part 112 , so that part of the air flow can be discharged downward from below the motor accommodating part 112 , and the air flow can flow to the bottom plate 111 , thereby blowing out the cooling liquid, dust and mud of the bottom plate 111 .
  • Cutting tool 100 also includes seal 204 .
  • the sealing member 204 shown in FIG. 5a and FIG. 5b is disposed between the second vent 202 and the second air inlet 103, which can prevent the gas flowing out of the second vent 202 from leaking into the tool, and can ensure that the gas in the battery pack is removed from the tool. Reuse the utilization of heat dissipation for the motor.
  • the sealing member 204 may also be in contact with the peripheral side of one end opening of the connecting channel 203 to avoid gas leakage when the gas flows to the connecting channel 203 through the second vent 202 and the second air inlet 103 .
  • the sealing member 204 may be disposed on the peripheral side of the second air inlet 103 or the peripheral side of the second air vent 202 or the upper end of the second air vent 202 .
  • the sealing member 204 can prevent airflow from being discharged from the gap between the second air inlet 103 and the second air vent 202 , thereby reducing the heat dissipation efficiency inside the casing 110 .
  • the shape of the sealing member 204 may be the same as the shape of the opening of the second air inlet 103 . In the embodiment shown in FIG. 5, the seal 204 is a rectangular ring.
  • the sealing member 204 is an elastic member, for example, an elastic rubber ring, so that when the battery pack 200 is installed on the battery pack interface 150 , the sealing member can be well adapted to the second air inlet 103 and the second ventilation The cooperation of the port 202 realizes the sealing of the connection between the second air inlet 103 and the second ventilation port 202 .
  • a seal may also be provided on the outer side of the first vent 201 on the battery pack case 205 to prevent a gap between the battery pack case 205 and the tool housing 110 , thereby affecting the ventilation effect.
  • the motor 120 includes a motor housing 121 and a fan 122 disposed in the motor housing 121.
  • the motor 120 further includes a rotor and a stator, and the rotor can rotate relative to the stator.
  • the fan 122 is connected to the motor 120 , and rotates when the motor 120 is running to generate airflow for dissipating heat to the casing 110 .
  • the cutting tool 100 further includes a first heat dissipation channel (not shown), and the first heat dissipation channel communicates with the motor housing 121 and the second air inlet 103 to guide the air flow into the motor housing 121 through the first heat dissipation channel, so as to strengthen the Heat dissipation inside the motor 120 .
  • the housing 110 forms a control room 161 for accommodating the control board 160
  • the control room 161 may have inwardly extending ribs inside the housing 110
  • the control room 161 generates an accommodating cavity for accommodating the control board 160 .
  • the motor housing 121 is provided with a third vent 1211 , which opens toward the control chamber 161 and is configured to guide part of the air flow from the control chamber 161 through the third vent 1211 into the motor housing 121 .
  • the motor housing 121 is provided with a fourth vent (not shown), part of the airflow passes near the capacitor plate, and then enters the motor housing 121 through the fourth vent to improve heat dissipation to the capacitor plate.
  • the rated voltage of the battery pack 200 is greater than or equal to 10V and less than or equal to 26V.
  • the rated voltage of the battery pack 200 is 10V, 12V, 15V, 18V, 20V, 24V or 26V.
  • the motor 120 is a brushless motor, and the minimum speed of the motor 120 is not lower than 7000 rpm. When the motor 120 is not loaded, the motor 120 can output greater than or equal to 0.8 Nm and less than or equal to 1.2 Nm Therefore, the cutting efficiency of the cutting tool 100 can be effectively improved, and the overall size of the cutting tool 100 can be made smaller, so that the cutting tool 100 is easy to carry and use.
  • the cutting tool 100 further includes a liquid storage system 170, and the liquid storage system 170 includes a liquid storage device 171, which is detachably mounted on the housing 110 and configured to store liquid.
  • a liquid storage device 171 which is detachably mounted on the housing 110 and configured to store liquid.
  • one type of cooling liquid or non-cooling liquid may be stored in the liquid storage device 171, or two or more types of liquids may be stored.
  • the structure of the liquid storage device 171 when multiple liquids are stored It is also necessary to add partitions or other settings.
  • the liquid storage device 171 is a kettle capable of storing cooling liquid water.
  • the battery pack 200 and the motor 120 are disposed on the same side of the casing 110 , and the liquid storage device 171 can be connected to the other side of the casing 110 .
  • the holding portion 113 is disposed above the motor accommodating portion 112 and the battery pack interface 150 .
  • the battery pack interface 150 may extend along the direction of the first straight line 108 such that the battery pack 200 can be inserted into the battery pack interface 150 along the direction of the first straight line 108 to connect to the housing 110 so that the battery pack 200 can balance the motor 120 and the weight of the grinding disc 131, so that when the user holds the grip portion 113, the projection of the center of gravity of the cutting tool 100 along the direction perpendicular to the first plane 105 overlaps with the projection of the grip portion 113, or overlaps with the projection of the accessory mounting portion 130.
  • the projections overlap, or the center of gravity of the cutting tool 100 is located along the projection perpendicular to the first plane 105 between the projections of the grip portion 113 and the accessory mounting portion 130 in this direction.
  • the battery pack interface 150 extends in a direction perpendicular to the first straight line 108 and parallel to the first plane 105 so that the battery pack 200 can be inserted in a direction perpendicular to the first straight line 108 and parallel to the first plane 105
  • the battery pack interface 150 is connected to the housing 110 , and the position of the center of gravity of the cutting tool 100 can be adjusted, thereby reducing the burden on the user when operating the cutting tool 100 .
  • the projection of the center of gravity of the cutting tool 100 along the direction perpendicular to the first plane 105 is located in the bottom plate 111, that is, the orthographic projection of the center of gravity of the cutting tool 100 is located at inside the bottom plate 111 . It can make the balance of the whole machine better, and the user saves more effort when holding and using the cutting tool 100 .
  • the projection of the center of gravity of the cutting tool 100 along the direction perpendicular to the first plane 105 overlaps with the projection of the grip portion 113 , or overlaps with the projection of the accessory mounting portion 130 .
  • the projections overlap, or the center of gravity of the cutting tool 100 is located along the projection perpendicular to the first plane 105 between the projections of the grip portion 113 and the accessory mounting portion 130 in this direction.
  • the above-mentioned projection refers to an orthographic projection.
  • the bottom plate 111 has a first position where the cutting tool 100 is at the maximum cutting depth.
  • the straight line distance from the first plane 105 to the lowest point of the grinding disc 131 is greater than or equal to 20mm and less than or equal to 35mm.
  • the linear distance is 20mm, 22mm, 24mm, 26mm, 29mm, 32mm, 35mm.
  • the cutting depth of the cutting tool 100 can be made smaller, which is more suitable for the cutting conditions of the stone, and effectively improves the cutting accuracy.
  • the housing 110 further includes a shield 114 , which is disposed on the peripheral side of the grinding disc 131 .
  • the top of the shield 114 is closer to the bottom plate 111 than the top of the grip 113 , and the height difference between the top of the grip 113 and the top of the shield 114 in this direction is set greater than or equal to 100mm, or greater than or equal to 90mm.
  • the holding part 113 is arranged on the upper part of the cutting tool 100 , and the holding part 113 includes a handle for the user to hold. In the front-rear direction, the orthographic projection of the handle in the first plane 105 is located between the projections of the battery pack 200 and the motor 120 .
  • the position of the handle is set behind the output member 1311 , which is convenient for the user to push the cutting tool 100 and reduces the force component in the direction of the user pushing the cutting tool 100 .
  • the handle In the backward extending direction, the handle has a tendency to extend downward, thereby facilitating the user to push the cutting tool 100 by operating the handle.
  • the height difference between the top of the grip portion 113 and the top of the shield 114 in this direction is 120 mm.
  • the shield 114 of the cutting tool 100 proposed in this embodiment is not provided with a movable shield 114 .
  • the liquid storage device 171 is disposed above the accessory mounting portion 130 and on the side of the grip portion 113 .
  • the output member 1311 can rotate around the first axis 1312.
  • the orthographic projection along the first axis in the first plane 105 is located at the outer contour of the housing 110 on the first plane 105. within the orthographic projection.
  • the bottom plate 111 extends along the first plane 105 , and in a direction perpendicular to the first plane 105 , the top of the liquid storage device 171 is closer to the bottom plate 111 than the top of the grip portion 113 .
  • the height difference between the top of the grip portion 113 and the top of the liquid storage device 171 in this direction is set to be greater than or equal to 35 mm.
  • the reservoir 171 can be prevented from obscuring the user's view of the sawing indicator when operating the cutting tool 100 .
  • the liquid storage system 170 includes a guide member 172 connected to the liquid storage device 171 and capable of guiding the liquid in the liquid storage device 171 to flow to the bottom plate 111 and/or the grinding disc 131 .
  • the guide 172 may be a water delivery tube, such as a flexible or rigid water tube. It should be noted that, if the guide member 172 is a flexible catheter, a catheter fixing member can be added to fix the catheter in the accessory mounting portion 130 to prevent the guide member 172 from being damaged due to contact between the guide port 1721 of the guide member 172 and the grinding disc 131 .
  • the liquid stored in the liquid storage device 171 may be water.
  • the guide member 172 has at least two guide openings 1721 , and the guide openings 1721 are disposed toward the accessory mounting portion 130 and/or the housing 110 .
  • the guide 172 is provided with two water pipes, and the guide port 1721 is provided on the accessory mounting portion 130 , or on the accessory mounting portion 130 and the housing 110 .
  • the grinding disc 131 rotates around the center of rotation, and the guide ports 1721 are arranged toward the front and rear directions of the rotation center.
  • the guide openings 1721 are set at the frontmost and rearmost ends of the grinding disc 131.
  • the grinding disc 131 can be used to accelerate the liquid, so that the liquid flows from the grinding disc 131 to the
  • the bottom plate 111 takes away the mud on the bottom plate 111 , and at the same time can ensure the water supply to the grinding disc 131 , so that the liquid can sufficiently cool the grinding disc 131 .
  • the fluid storage system 170 also includes a system control 174 .
  • the system control member 174 is disposed on the liquid flow path of the liquid storage system 170 to control the flow state of the liquid in the liquid storage device 171.
  • the system control member 174 is a water valve, such as a three-way water valve, through which the guide member 172 is connected.
  • the grinding disc 131 When the grinding disc 131 is installed on the cutting tool 100, it extends along the second plane, and the end of the guide member 172 is arranged to be inclined relative to the second plane, thereby increasing the liquid area formed by the cooling liquid sprayed on the grinding disc 131 and improving the heat dissipation effect .
  • the included angle ⁇ 3 formed by the end of the guide member 172 and the second plane is set to be greater than or equal to 10 degrees and less than or equal to 60 degrees, which can prevent the liquid ejected from the guide member 172 from deviating from the grinding disc 131 . Increase the liquid area formed by the cooling liquid sprayed onto the grinding disc 131 .
  • the liquid storage system 170 includes a water pump and is provided with a connecting guide 172.
  • the first plane 105 is vertical or approximately vertical to the ground, so that the liquid in the liquid storage device 171 cannot sufficiently flow to the guide
  • the port 1721 at this time, can transport liquid through the water pump, thereby assisting the operation of the cutting tool 100.
  • the cutting tool 100 further includes an inertial measurement unit configured to detect the relative posture of the marble machine, and control the operation of the water pump through the controller when the angle between the first plane 105 and the ground is greater than a preset value. For example, a water pump is turned on by user control.
  • the liquid storage device 171 includes a liquid outlet.
  • the guide member 172 is connected to the liquid outlet, and the diameter of the liquid outlet is greater than or equal to 1 mm and less than or equal to 3 mm, for example, the diameter of the liquid outlet is 1 mm, 2 mm or 3 mm.
  • the liquid flow rate of the liquid outlet is greater than or equal to 0/s, and less than or equal to 2g/s, so as to ensure the heat dissipation of the cutting tool 100 proposed in this embodiment, and prevent the liquid in the liquid storage device 171 from draining too fast, so that the user does not Frequent fluid refills are required. Referring to FIG. 12 , in the process of using the cutting tool 100, as the liquid in the liquid storage device 171 flows out, the hydraulic pressure decreases accordingly.
  • the water flow rate of the liquid outlet also decreases, and when the water fills the liquid storage device 171 When the volume of water in the liquid storage device 171 is only about 20%, the water flow rate of the liquid outlet is 0.4/s ⁇ 0.6g/s s.
  • the bottom plate 111 includes a mudguard 1111 , and the mudguard 1111 protrudes upward relative to the first plane 105 .
  • the cutting tool 100 is capable of cutting along the direction of the first straight line 108, and the base plate 111 has a first position such that the cutting tool is at a maximum cutting depth.
  • the bottom plate 111 is in the first position.
  • the fender 1111 is disposed behind the bottom plate 111 , which means that the fender 1111 is relatively backward relative to the middle position of the bottom plate 111 to prevent the water and mud on the bottom plate 111 from being splashed on the user.
  • a discharge port 1114 is provided in front of the fender 1111 , so that water and mud are directly discharged from the discharge port 1114 in front of the fender 1111 .
  • a stop surface 1112 is formed on the side of the fender 1111, which can block mud. The projection of the stop surface 1112 to the first plane 105 should be regarded as the extending direction of the entire fender 1111 .
  • the angle ⁇ 1 formed by the projection of at least part of the stop surface 1112 to the first plane 105 along the direction perpendicular to the first plane 105 and the first straight line 108 is greater than or equal to 100 degrees and less than or equal to 135 degrees, thereby using the stop
  • the inclination angle of the blocking surface 1112 makes the mud discharge to one side of the blocking surface 1112 .
  • the projection of the fender 1111 to the first plane 105 along the direction perpendicular to the first plane 105 extends along the second straight line 109 , and the included angle formed by the second straight line 109 and the first straight line 108 is greater than or equal to 100 degrees and less than or equal to 135 degrees.
  • the bottom plate 111 includes a center line 1113 passing through its center. The center line 1113 is perpendicular to the direction of the first straight line 108. In the direction away from the first straight line 108, the second straight line 109 is relatively offset from the center line 1113 of the bottom plate 111.
  • this arrangement encourages the mud to be drained away from the user, thereby reducing the amount of water and mud that splashes on the user.
  • the angle between the stop surface 1112 and the first plane 105 is greater than or equal to 10 degrees and less than or equal to 90 degrees. If the angle between the stop surface 1112 and the first plane 105 is too small, the base plate 111 will be relatively increased. The size is not conducive to the compactness of the whole machine. When the included angle between the stop surface 1112 and the first plane 105 is too large, the probability of mud splashing over the fender to the rear of the fender will increase.
  • an auxiliary fender 1115 is also provided at the end of the fender 1111 to block the mud and water flow flying out from the end of the fender.
  • the auxiliary fender 1115 is provided on the side close to the first straight line.
  • Auxiliary fenders 1115 may be L-shaped to block mud all around.
  • the height of the fender 1111 along the direction perpendicular to the first plane 105 is greater than or equal to 11 mm and less than or equal to 15 mm.
  • the space between the bottom plate 111 and the casing is fully utilized, and the effect of blocking mud can be improved.
  • an included angle ⁇ 2 formed by the projection of at least part of the stopper facing the first plane and the centerline is greater than or equal to 10 degrees and less than or equal to 45 degrees.
  • the cutting tool 100 includes a connecting device 173 , through which the liquid storage device 171 and the housing 110 are detachably connected. Part of the connecting device 173 is provided on the housing 110 and part is provided on the liquid storage device 171 .
  • the connecting device 173 includes a sliding member 1731 and a sliding groove 1732 , and the sliding member 1731 slides in the sliding groove 1732 to unlock and lock the liquid storage device 171 and the housing 110 .
  • the sliding groove 1732 includes a first sliding groove 1733, a second sliding groove 1734 and a locking groove 1735.
  • the first sliding groove 1733 and the second sliding groove 1734 are substantially vertical, and the locking groove 1735 and the second sliding groove 1734 are arranged in the first sliding groove 1733. on the same side.
  • the user aligns the sliding member 1731 with the first chute 1733, pushes the liquid storage device 171 toward the connecting device 173, and the sliding member 1731 slides in the first sliding groove 1733 and slides to the first sliding groove At the bottom of 1733, by relatively rotating the kettle 171, the sliding member 1731 slides in the second sliding groove 1734.
  • the sliding member 1731 slides to the end of the second sliding groove 1734, the sliding member 1731 is inserted into the locking groove 1735, so that the liquid is stored
  • the device 171 is connected to the housing 110 .
  • a spring is provided at the end of the second sliding groove 1734 to maintain the sliding member 1731 in the locking groove 1735 .
  • connection device 173 is adapted to the municipal water supply, that is, it can be connected to a tap water pipe, and the user can use the connection device 173 to connect the liquid storage device 171 or the tap water pipe according to requirements.
  • part of the guide member 172 is arranged to contact the control chamber 161, for example, the guide member 172 is arranged to extend in a "bow" shape on the side of the control chamber 161, so as to increase the contact area between the guide member 172 and the control chamber 161, and use the cooling liquid to control the control
  • the plate 160 dissipates heat.
  • Cutting tool 100 also includes trigger 107 and system controls 174 .
  • Trigger 107 controls the operation of motor 120 and system control 174 controls the flow of cooling liquid within guide 172 .
  • the liquid storage system 170 further includes a linkage device, and the linkage device connects the trigger 107 and the system control member 174.
  • the linkage device drives the system control member 174 to open.
  • the linkage device includes a linkage member and an elastic member 1741.
  • the elastic member is connected to the system control member 174.
  • the elastic member 1741 maintains the system control member 174 to close the guide member 172.
  • the system control part 174 is driven to open by the linkage, so that the user can operate the cutting tool 100 conveniently, and the cooling liquid in the liquid storage device 171 can be saved, reducing the number of times that the user needs to add cooling liquid.
  • the system control member 174 is an electric water valve, the electric water valve includes an electromagnet, and the cutting tool 100 further includes a controller.
  • the controller controls the displacement of the electromagnet to make the water valve 174 open.
  • the controller is set to open the water valve 174 first when the trigger 107 is pressed, and control the motor 120 to turn on after N seconds, which can improve the heat dissipation effect; when the trigger 107 is pressed, control the water valve 174 Turn on the motor 120 at the same time; when the trigger 107 is activated, start the motor 120 first, and control the water valve 174 to open after N seconds, which can save cooling liquid.
  • the motor 120 is controlled to stop first, and then the water valve 174 is controlled to stop.
  • the liquid storage system 170 also includes a vibration sensor.
  • the controller controls the water valve 174 to open, to cool the grinding disc 131 and other components, and to remove dust and mud. cleaning.
  • the temperature rise of the electromagnet is higher due to the magnetic circuit generated by the electric power, so that the electric water valve is arranged in the heat dissipation air passage proposed in the present application, or the guide member 172 is arranged to contact the electric water valve, and the guide member is used.
  • the cooling liquid in 172 dissipates heat to the electric water valve.
  • the cutting tool 100 further includes a water valve switch 175 connected to the water valve 174 control circuit.
  • the water valve 174 control circuit is independent from the control circuit of the motor 120 , so that the user can individually control the opening and closing of the water valve 174 through the water valve switch 175 .
  • the front end of the casing 110 is further provided with a waterproof part 115 , which includes a downwardly extending chute 1151 configured to guide water and mud to be discharged from the upper end of the casing 110 .
  • the casing 110 further includes a third air outlet 116, and the third air outlet 116 opens toward the battery pack 200. Part of the airflow generated inside the casing 110 can flow to the battery pack 200 through the third air outlet 116, so that the batteries can be blown away. Pack 200 surfaces of water and mud.
  • the air inlet is set near the control room where the control board is placed, so that when the fan is running, the air flows from the control room into the motor housing, and then flows out from the motor housing, while the motor housing There is no other air inlet on the upper part, so that the heat dissipation airflow can first dissipate heat to the control board and then dissipate heat to the motor, so as to ensure the heat dissipation efficiency of the control board.
  • the trigger 107 in the cutting tool 100 is disposed at the front end of the holding portion 113, or is disposed on the holding portion 113, so that when the user holds the tool, it is more convenient to operate and control the power on and off of the tool.
  • the controller 10 can receive the power-on signal output by the trigger 107, and controls the motor 120 to turn on, and the cutting tool 100 starts to drive the grinding disc 131 to rotate.
  • the trigger 107 may be a push-type operation switch, a push-type switch, or a rotary switch.
  • the trigger 107 can generate different control signals according to different pressing strengths, or generate different control signals according to different pushing strokes, or generate different control signals according to different knob positions.
  • the trigger 107 can control the conduction state of the system control member 174 .
  • the trigger 107 can not only control the operation of the motor 120 , but also control the flow of the liquid in the liquid storage device 171 or control whether the liquid flows in the guide member 172 .
  • the system control member 174 is a solenoid valve, including an electromagnet. In the case of power on, the solenoid valve is opened, and the liquid in the liquid storage device 171 flows out; in the case of power failure, the solenoid valve is closed, and the liquid storage device The liquid in 171 cannot flow out.
  • the controller 10 in the cutting tool 100 can control the displacement of the electromagnet when the motor 120 is running, so that the system control member 174 is turned on.
  • the controller 10 is configured to turn on the system control member 174 first when the trigger 107 is operated, and control the motor 120 to turn on after N seconds, which can improve the heat dissipation effect.
  • the control system controls 174 and the motor 120 are turned on simultaneously.
  • the motor 120 is started first, and the control system control 174 is turned on after N seconds, which can save cooling liquid.
  • the motor 120 is first controlled to stop, and then the system control member 174 is controlled to stop.
  • the trigger 107 may have multiple different operating states, and may output different control signals to the controller 10 under different operating states.
  • the trigger 107 may have a certain switching stroke in a preset direction, and at least two control signals can be generated within the synchronous switching stroke.
  • the preset direction refers to the operation direction of the switch when the machine is turned on.
  • different switch strokes of the trigger 107 correspond to different operating states, and different control signals are generated under different operating states.
  • the trigger 107 can generate a first control signal when it is in a first operating state, and can generate a second control signal when it is in a second operating state.
  • the way of generating the switch stroke is related to the type of the trigger 107.
  • the trigger 107 is a push switch. When the switch is pressed with different strengths, the corresponding switch strokes are different. The switch stroke is small when the pressing strength is small, and the switch is switched when the pressing strength is large.
  • the trigger 107 is a push switch, and as the user pushes the switch along the set opening direction, the switch stroke gradually increases; another example is the trigger 107 is a rotary switch, and the switch is rotated along the set opening direction by the user.
  • the itinerary increases gradually. For example, when the switch stroke of the trigger 107 is less than or equal to the first formation threshold, the trigger 107 can generate the first control signal; when the switch stroke of the trigger 107 is greater than the first formation threshold, the trigger 107 can generate the second control signal.
  • the controller 10 can obtain the control signal output by the trigger 107 , and when the first control signal is obtained, the control system control part 174 is turned on to start the liquid storage system 170 . Therefore, the liquid in the liquid storage device 171 enters the guide member 172, and the liquid flows out from the guide port 1721 to the grinding disc 131 after passing through the guide member 172 to wet the grinding disc 131, which can dissipate heat for the grinding disc or wet the workpiece.
  • the controller 10 obtains the second control signal output by the trigger 107 , it can start the motor 120 to rotate.
  • the system control part 174 can be activated first and then the motor 120 can be activated in a short period of time. Based on the change of the switch stroke, the system control part 174 and the motor 120 are not activated at the same time, so that the workpiece and the grinding disc can be wetted in advance without wasting water in a suitable time.
  • the switch travel of trigger 107 may be refined.
  • the trigger 107 when the switching stroke of the trigger 107 is less than or equal to the second stroke threshold, the trigger 107 does not output a control signal, that is, does not open the liquid storage device 171 in advance, which can avoid wasting liquid when the switching stroke is long.
  • a third control signal is output; the controller 10 may control the system control 174 to periodically open based on the third control signal, that is, control the solenoid valve to cycle on and off.
  • the switch travel is greater than the third travel threshold, the trigger 107 outputs the first control signal, and the control system control 174 is turned on.
  • the trigger 107 can output a second control signal to control the motor 120 to start.
  • the fourth stroke threshold is greater than the third stroke threshold.
  • first stroke threshold and second to fourth stroke thresholds are set values in different real-time modes, which are related to the total switch stroke that the trigger 107 can have, and are not comparable. Therefore, no limitation is given to the magnitudes of the first stroke threshold and the second to fourth stroke thresholds.
  • the rotational speed of the motor 120 changes non-linearly. That is to say, under different working conditions, the rotational speed of the motor 120 is different. For example, in order to avoid damage to the grinding disc when the stone is hard, the motor 120 rotates at a lower speed, and when the stone is soft, the motor 120 may rotate at a faster speed to improve efficiency. However, under different working conditions, the generated dust or the heat generation of the grinding disc is different. Therefore, the liquid storage system 170 can be controlled more precisely to meet the requirements under different working conditions.
  • the cutting tool 100 further includes a rotational speed detection module 30 capable of detecting the rotational speed of the motor 120 .
  • the controller 10 can acquire the rotational speed of the motor 120 output by the rotational speed detection module 30 .
  • the control system control part 174 is turned off; when the rotational speed is greater than or equal to the first rotational speed threshold and less than or equal to the second rotational speed threshold, the control system control part 174 is periodically turned on; Above the second rotational speed threshold, the control system control 174 is turned on.
  • the controller 10 By controlling the infusion system to provide different forms of liquid discharge or liquid discharge at different rotational speeds of the motor 120 , a better dustproof or heat reduction effect is achieved while avoiding waste of liquid. It can be understood that, when the rotational speed of the motor 120 is greater than or equal to the first rotational speed threshold, the controller 10 also controls the system control element 174 to output the liquid at a smaller flow rate or flow rate. Illustratively, when the rotational speed of the motor 120 is less than 500 rpm, the controller 10 can control the system control 174 to turn off; when the rotational speed of the motor 120 is between 500 rpm and 3000 rpm, the controller 10 can control the system control 174.
  • the control system control part 174 is turned on periodically; when the rotational speed of the motor 120 is greater than 3000 rpm, the control system control part 174 is turned on. It should be noted that, the controller 10 may adjust the period during which the system control element 174 is periodically turned on according to the actual rotational speed of the motor 120 .
  • a drive circuit 20 is further provided between the motor 120 and the controller 10 .
  • the driving circuit 20 may transfer current from the battery pack 200 to the stator windings of the motor 120 to drive the motor 120 to rotate.
  • the driver circuit 20 includes a plurality of switching elements (not shown), eg, including six switching elements.
  • the gate terminal of each switching element is electrically connected to the controller 10 and configured to receive a control signal from the controller 10 .
  • the drain or source of each switching element is connected to the stator windings of the electric machine 120 .
  • the six switching elements receive control signals from the controller 10 to change their respective conduction states, thereby changing the current loaded by the battery pack 200 on the stator windings of the motor 120 .
  • the driver circuit 20 may be a three-phase bridge driver circuit of six controllable semiconductor power devices (eg, FETs, BJTs, IGBTs, etc.). It can be understood that the above switching elements can also be any other types of solid state switches, such as insulated gate bipolar transistors (IGBTs), bipolar junction transistors (BJTs) and the like.
  • IGBTs insulated gate bipolar transistors
  • BJTs bipolar junction transistors
  • the temperature of the system control member 174 may also increase due to frequent power-on or power-off, thereby affecting the accuracy of its control.
  • the cutting tool 100 further includes a temperature detection module 40 , which is configured to detect the temperature of the system control member 174 and output the temperature to the controller 10 .
  • the controller 10 controls it to be turned off; when the temperature is greater than or equal to the second temperature threshold, the controller 100 controls the motor 120 to stop rotating.
  • both the motor 120 and the system control member 174 work normally; when the temperature is greater than 60° and less than 90°, the temperature of the system control member 174 is relatively high, Continuing to work will affect its performance, the controller 10 will turn off the controller 10, but the motor 120 can still work normally; if the temperature continues to rise greater than or equal to 90°, the motor 120 is controlled to stop rotating, that is, the system at this time
  • the temperature of the control member 174 may also affect the normal operation of the motor 120 .
  • the liquid volume in the liquid storage device 171 will gradually decrease with use. If the liquid output is not stopped in time when the cutting tool 100 is below a certain value, the liquid storage system 350 may be damaged.
  • the cutting tool 100 may further include a flow detection module 50, configured to detect the flow of the liquid in the liquid storage system 170, and transmit the detected flow to the controller 10, when the flow is less than the flow threshold, the controller 10 , the control system control 174 is closed. Therefore, when the liquid in the liquid storage device 171 is low, the liquid storage device 171 can be closed in advance to avoid damage to the liquid storage system 170 .
  • a volume detection module 60 may also be provided in the cutting tool 100 to detect the volume of the liquid in the liquid storage device 174 and transmit it to the controller 10 .
  • the controller 10 may control the system controls 174 to close when the liquid volume is less than the volume threshold. It can also be closed in advance before the liquid in the liquid storage device 171 is insufficient to provide the tool with the function of reducing heat or dust, so as to avoid damage to the liquid storage system 170 .
  • the controller 10 may control the tool 100 to enter a standby state. And after the liquid storage device 171 is refilled with liquid, it enters the working mode again, that is, the liquid is controlled to flow out and the motor 120 is started. For example, if the controller 10 detects that the content of the liquid storage device 171 does not increase or the liquid flow does not increase after the liquid storage system 170 is turned on again within the preset time period when the system control member 174 is turned off, the controller 10 directly controls the motor 120 to stop.
  • the controller 10 if the controller 10 receives the fourth control signal, it controls the motor 120 to stop rotating, and controls the system control member 174 to turn off after a preset time period. It can be understood that the trigger 107 can send out the fourth control signal when the switch stroke changes from the maximum to zero. That is, the fourth control signal is a signal output by the trigger 107 when the user operates the tool to perform a normal shutdown operation. It is not a control signal for controlling the stop state of the motor 120 when the motor 120 is stopped in an abnormal state.
  • the so-called abnormal state shutdown may include: shutting down the motor 120 due to insufficient liquid in the reservoir system 170 and shutting down the system control 174 for a period of time without refilling; or shutting down the motor due to a high temperature of the system control 174 120.
  • the user operates the tool to shut down the system control part 174 after a preset period of time when the tool is normally shut down, which can quickly cool down the grinding disc after shutting down, and can also achieve a better dust reduction effect.
  • the controller 10 may detect the current rotational speed of the motor 120, and match an appropriate preset time period according to the rotational speed. For example, the higher the current rotational speed when the motor 120 is stopped, the longer the preset time period is set, and vice versa. In addition, if the rotation speed of the motor 120 is very low during shutdown, the system control unit 174 can also be turned off at the same time.
  • At least one power element such as a MOS transistor, is provided between the system control part 174 and the controller 10 , and the controller 10 controls the on or off of the system control part 174 by controlling the conduction state of the MOS transistor.
  • control system of the cutting tool 100 may simultaneously include at least two of the rotational speed detection module 30 , the volume detection module 60 , the flow detection module 50 and the temperature detection module 40 . As shown in FIG. 23 , all the above-mentioned detection modules may be included at the same time.
  • the system controls 174 may not be turned on or off by the controller 10 . Instead, when the trigger 107 is triggered, the control system control member 174 that is linked according to the triggered operating state is turned on or periodically turned on or off. For example, when the trigger 107 is triggered in the first operating state, the system control 174 can be triggered to open to activate the reservoir system 170 . When the trigger 107 is in the second operating state, the motor 120 can be triggered to rotate. It should be noted that when the trigger 107 is in the second operating state, a second control signal can be generated in this state and transmitted to the controller 10 , and the controller 10 controls the motor 120 to be turned on.
  • the system control 174 can be controlled by the trigger 107 in linkage, and the motor 120 can be controlled by the controller 10 .
  • the motor 120 can also be activated directly by the trigger 107 without going through the controller 10 .
  • the trigger 107 may be turned on or periodically turned on or off by a control system control 174 linked to its switch travel.
  • the operating element can output different control signals under different switch strokes.
  • control methods in the above embodiments are also applicable to the control of the cutting tool 300 in the following embodiments.
  • cutting tool 300 is shown in FIG. 25 .
  • the structures and working principles of the casing 310 , the motor 320 , the attachment mounting portion 330 , the transmission mechanism 340 , the air inlet and the air outlet in the cutting tool 300 are similar to those in FIGS. 1 to 18 , and are not omitted here for the sake of simplicity. Describe in detail.
  • the structures and principles different from those in the cutting tool 100 are mainly introduced.
  • the naming sequence of different components in the cutting tool 300 reference may also be made to the naming sequence in the foregoing embodiment.
  • the reservoir 371 is mounted on the housing 310 .
  • the liquid storage device 371 is provided on the shield 314 and is located at the front end of the complete tool.
  • the shield 314 is provided with an installation interface 3141 , which is configured to install the liquid storage device 371 .
  • the length of the orthographic projection of the liquid storage device 371 on the first plane 305 in the direction of the first axis 3311 is greater than or equal to the length of the bottom plate 311 in the direction of the first axis 3311 .
  • the orthographic projection of the liquid storage device 371 on the first plane 305 is approximately “L-shaped.
  • the cutting tool 300 also includes a connecting device 373 .
  • the connecting device 373 Through the connecting device 373, the liquid storage device 371 and the housing 310 are detachably connected. Part of the connecting device 373 is provided on the housing 310 and part is provided on the liquid storage device 371 .
  • the connecting device 373 includes a first connecting piece 3731 threadedly connected to the opening 3711 of the liquid storage device 371 , an operating piece 3732 for the user to control opening or closing, and a connecting piece 3733 connected between the system control piece 374 and the operating piece 3732 .
  • the system control 374 is a solenoid water valve.
  • a fourth air outlet 317 is provided on the shield 314 .
  • the cutting tool 300 further includes a second heat dissipation channel, and the second heat dissipation channel is connected to the motor housing 321 and the fourth air outlet 317 .
  • the second heat dissipation channel can guide the air flow formed by the rotation of the fan to flow into the interior of the shield 314 to dissipate heat for the system control component 374 .
  • the motor housing 321 is formed with a housing opening 322, and the housing opening 322 and the fourth air outlet 317 are the inlet and the outlet of the second heat dissipation channel.

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Abstract

本申请提供一种切割工具，包括：电机，被壳体支撑；附件安装部，包括连接磨盘的输出件；传动机构，连接电机和输出件；底板，设置于壳体底部，具有供磨盘穿过的安装孔；还包括：电池包接口，设置为可拆卸地连接电池包；储液系统，包括储液装置，设置为储存液体，储液装置可拆卸地安装到壳体上；系统控制件，设置在储液系统的液体流通路径上，用以控制储液装置内液体的流动状态；电机为无刷电机，电机的最低转速不低于7000转/分钟。

Description

切割工具
本申请要求在2020年12月25日提交中国专利局、申请号为202011567840.8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，例如涉及一种切割工具。
背景技术
切割工具用于切割工件，其设有用于辅助切割动作的底板。相关技术中的切割工具的体积较大，且电机性能不利于持久作业。
发明内容
本申请提供一种切割工具，该切割工具的整机结构被优化，性能被提升，使得该切割工具的尺寸较小而方便操作。
提供一种切割工具，包括：壳体；电机，被所述壳体支撑；附件安装部，包括连接磨盘的输出件；传动机构，连接所述电机和所述输出件；底板，设置于所述壳体底部，具有供磨盘穿过的安装孔；其中，所述切割工具还包括：储液系统，包括储液装置，设置为储存液体，所述储液装置可拆卸地安装到所述壳体上；所述电机为无刷电机，所述电机的最低转速不低于7000转/分钟。
一种切割工具，包括：壳体；电机，被所述壳体支撑；附件安装部，包括连接磨盘的输出件；传动机构，连接所述电机和所述输出件；底板，设置于所述壳体底部，具有供磨盘穿过的安装孔；其中，所述切割工具还包括：电源接口，设置为可拆卸地连接电源装置；储液系统，包括储液装置，设置为储存液体，所述储液装置可拆卸地安装到所述壳体上。
一种切割工具，包括：壳体；电机，被所述壳体支撑；附件安装部，包括连接磨盘的输出件；传动机构，连接所述电机和所述输出件；底板，设置于所述壳体底部，具有供磨盘穿过的安装孔；其中，所述切割工具还包括：储液系统，包括储液装置，设置为储存液体，所述储液装置可拆卸地安装到所述壳体上；系统控制件，设置在所述储液系统的液体流通路径上，用以控制所述储液装置内液体的流动状态。
一种切割工具，包括：壳体；电机，设置在所述壳体内，以为所述切割工具提供驱动力；操作元件，能被用户触发具有多种操作状态；储液系统，包括安装在所述壳体上的储液装置和引导液体流动方向的引导件；系统控制件，设置在所述储液系统的液体流通路径上，用以控制所述储液装置内液体的流动状态；控制器，至少与所述操作元件和所述系统控制件电连接；所述控制器被配置为：获取所述操作元件在不同操作状态下输出的控制信号；在获取到第一控制信号时，控制所述系统控制件开启以启动所述储液系统；在获取到第二控制信号时，控制所述电机转动。
一种切割工具，包括：壳体；电机，设置在所述壳体内，以为所述切割工具提供驱动力；储液系统，包括安装在所述壳体上的储液装置和引导液体流动方向的引导件；系统控制件，设置在所述储液系统的液体流通路径上，用以控制所述储液装置内液体的流动状态；操作元件，能被用户触发具有多种操作状态；所述操作元件处于第一操作状态时，能触发所述系统控制件开启以启动所述储液系统；所述操作元件处于第二操作状态时，能触发所述电机转动。
一种切割工具，包括：壳体；电机，被所述壳体支撑；附件安装部，包括连接磨盘的输出件；传动 机构，连接所述电机和所述输出件；底板，设置于所述壳体底部，具有供磨盘穿过的安装孔；其中，所述壳体包括护罩；所述护罩设置在所述底板上侧。
附图说明
图1是本申请一个实施方式中切割工具的立体示意图；
图2是图1中切割工具的另一个角度的立体示意图；
图3是图1中切割工具的另一个角度的立体示意图；
图4是图1中切割工具的内部结构示意图；
图5a是图1中切割工具的部分结构的剖面示意图；
图5b是图5a中D部分的局部放大图；
图6是图1中切割工具的进风口和出风口的示意图；
图7是图1中切割工具的内部结构示意图；
图8是图1中切割工具的供水系统和磨盘的示意图；
图9是图1中切割工具的供水系统的示意图；
图10是图1中切割工具的水壶和连接装置的示意图；
图11是图1中切割工具的连接装置的放大示意图；
图12是图1中切割工具的水壶的水流速和时间的关系图；
图13是图1中切割工具的底板的示意图；
图14是图1中切割工具的挡泥板倾斜角度的示意图；
图15是图1中切割工具的挡泥板高度示意图；
图16是图1中切割工具的送水管末端和磨盘的夹角的角度示意图；
图17是图1中切割工具的防水部的示意图；
图18是本实施方式中一种切割工具的底板的示意图；
图19是图1中切割工具的一种控制系统示意图；
图20是图1中切割工具的一种控制系统示意图；
图21是图1中切割工具的一种控制系统示意图；
图22是图1中切割工具的一种控制系统示意图；
图23是图1中切割工具的一种控制系统示意图；
图24是图1中切割工具的控制方法流程图；
图25是本申请一个实施方式中切割工具的立体示意图；
图26是图25中切割工具的另一个角度的立体示意图；
图27是图25中切割工具的部分结构的一个角度的立体示意图；
图28是图25中切割工具的部分结构的另一个角度的立体示意图；
图29是图25中切割工具的部分结构的示意图；
图30是图25中切割工具的另一个角度的立体示意图。
具体实施方式
以下结合附图和具体实施例对本申请作具体的介绍。
本申请一实施方式中，参照图1到图3，提供一种切割工具100，例如可以是云石机，可以用于切割 石材等工件，其通过带动磨盘131旋转对石材进行磨切。切割工具100包括：壳体110、电机120、附件安装部130以及传动机构140，电机120被壳体110支撑，附件安装部130包括连接磨盘131的输出件1311，传动机构140连接输出件和电机120。切割工具100还包括电源接口150，设置为接入电源。在一个实施例中，电源可以是交流市电。在一个实施例中，电源为直流电源，如电池包，电源接口150也可以称为电池包接口150。电池包接口150可拆卸地连接电池包200。电池包200能给电机120供电，电机120旋转并通过传动机构140带动输出件旋转运动，从而磨盘131能对工件进行磨切。例如，磨盘131切割面设有金属颗粒，通过金属颗粒切割工件。
参照图3和图14，切割工具100还包括底板111，底板111沿着第一平面105延伸，其设置于壳体110底部。底板111具有供磨盘131穿过的安装孔1116，底板111能辅助用户切割，磨盘131穿过安装孔1116并能相对底板111转动。其中，安装孔1116可以是封闭或半封闭式的开槽。底板111前端还设有锯切指示器，该锯切指示器能指示磨盘131向底板111竖直投影形成的第一直线108，该切割工具100能沿着第一直线108的方向切割。磨盘131向底板111的竖直投影是指底板111水平放置、且磨盘131相对底板111垂直时，磨盘131在铅垂方向上的投影。
参照图2和图3，壳体110形成电机容纳部112和握持部113，电机容纳部112设置为放置电机120，握持部113供用户握持操作切割工具100。电池包接口150设置于电机容纳部112后端，附件安装部130设置于电机容纳部112侧端，电机容纳部112的后端是指与锯切指示器所在的切割工具100的前端相反的方向。因为磨盘131的尺寸较小，电池包接口150可以被设置在电机容纳部112的后端，在电池包200被安装到电池包接口150后，电池包200设置于电机容纳部112的后端，且沿着第一直线108方向的投影，磨盘131和电池包200有重叠部分，使得切割工具100整机结构紧凑。
参照图5，切割工具100还包括控制板160，控制板160能控制电机120的运行。在一种实现方式中，电池包200被设置在电机容纳部112的后端，控制板160被设置于电机容纳部112前端，且控制板160位于壳体110内。在示例实现方式中，控制板160也可以设置在电机容纳部112的上端或下端或后端。切割工具100还包括扳机107，在用户按动扳机107时，控制板160控制电机120开启，切割工具100启动带动磨盘131转动。
参照图2和图3和图5，切割工具100包括第一进风口101和第一出风口102，第一进风口101设置于壳体110后端，第一出风口102设置于电机容纳部112前端，部分气流能从第一进风口101进入壳体110内部，并流经电池包接口150。电池包200被安装到电池包接口150，在给切割工具100供电时，电池包200极片处的温升较高，利用从第一进风口101进入壳体110内部的气流能有效对电池包200和电池包200极片散热，防止电池包200过热。
参照图5和图6，图5中的空心箭头为散热气流流向示意。切割工具100包括第二进风口103和第二出风口104，第二进风口103设置于电池包接口150，第二出风口104设置于电机容纳部112下端。电池包200包括电池包壳体205和设置于电池包壳体205内部的电池芯，电池包壳体205包括第一通风口201和第二通风口202，在电池包200安装到电池包接口150时，第二通风口202和第二进风口103连通。切割工具还包括连接通道203，连接通道203的一端连接于第二通风口202或第二进风口103，另一端与电机壳体121上的第五通风口1212连接，从而部分气流能从第一通风口201进入电池包壳体205内部，并对电池芯散热后，通过第二通风口202流向第二进风口103，并沿连接通道203流入电机壳体121内部。也就是说，为电池包200散热后的气流，能基于连接通道203后再次利用为电机散热。从第一进风口101和第二进风口103进入电机120内部的气流能从第一出风口102和第二出风口104排出机壳。第一出风口102设置于电机容纳部112前端，部分气流从电机容纳部112的前端排出，可以对壳体110的前端防水， 且吹散壳体110前端的泥浆。第二出风口104被设置在电机容纳部112下方，使得部分气流能从电机容纳部112下方向下排出，气流能流向底板111，从而吹散底板111的冷却液体、灰尘以及泥浆。
切割工具100还包括密封件204。图5a和图5b所示的密封件204设置在第二通风口202和第二进风口103之间，能防止第二通风口202流出的气体泄漏至工具内部，能保证电池包内的气体被再次利用为电机散热的利用率。其中，密封件204还可以与连接通道203的一端开口的周侧接触，避免气体通过第二通风口202、第二进风口103流向连接通道203时漏气。
在一个实施例中，密封件204可以设置于第二进风口103周侧或者第二通风口202周侧或者第二通风口202的上端。在电池包200安装到电池包接口150时，密封件204能防止气流从第二进风口103和第二通风口202的间隙中排出，降低对壳体110内部的散热效率。在一个实施例中，密封件204的形状可以与第二进风口103的开口形状相同。在图5所示的实施例中，密封件204为长方形圈状件。在一个实施例中，密封件204为弹性件，例如，为弹性橡胶圈，使得电池包200在安装到电池包接口150时，密封件能很好的适配第二进风口103和第二通风口202的配合，实现对第二进风口103和第二通风口202的连接的密封。在一个实施例中，电池包壳体205上的第一通风口201外侧也可以设有密封件，以防止电池包壳体205与工具的壳体110之间有间隙，而影响通风效果。
参照图5a和图7，电机120包括电机壳体121和设置于电机壳体121内的风扇122，电机120还包括转子和定子，转子能相对定子转动。风扇122连接于电机120，在电机120运行时转动，产生对壳体110散热的气流。切割工具100还包括第一散热通道(未示出)，第一散热通道连通电机壳体121和第二进风口103，以引导气流通过第一散热通道流入电机壳体121内部，加强对电机120内部的散热。
参照图4，壳体110形成容纳控制板160的控制室161，控制室161可以是壳体110内部具有向内延伸的凸筋，控制室161生成容纳控制板160的容纳腔。电机壳体121设有第三通风口1211，第三通风口1211朝向控制室161敞开，设置为引导部分气流从控制室161通过第三通风孔1211进入电机壳体121内。例如，电机壳体121上设有第四通风口(未示出)，部分气流经过电容板附近，再通过第四通风口进入电机壳体121，以提升对电容板的散热。
电池包200的额定电压大于或等于10V，小于或等于26V，例如电池包200的额定电压为10V、12V、15V、18V、20V、24V或者26V等。在一个实施例中，电机120为无刷电机，电机120的最低转速不低于7000转/分钟，在电机120空载时，电机120能输出大于或等于0.8牛米，且小于或等于1.2牛米的扭矩，从而可以有效提升切割工具100的切割效率，并且可以使得切割工具100整机尺寸较小，使得切割工具100便于携带和使用。
参照图1和图3，切割工具100还包括储液系统170，储液系统170包括储液装置171，可拆卸地安装到壳体110上，设置为储存液体。在一个实施例中，储液装置171内可以存储一种类型的冷却液体或者非冷却液体，也可以存储两种或者两种以上类型的液体，当然存储多种液体时储液装置171内的结构也需要增加隔板或者其他设置。示例性的，储液装置171为水壶，能够储存冷却液体水。电池包200和电机120被设置在壳体110同一侧，储液装置171能被连接到壳体110的另一侧。握持部113设置于电机容纳部112和电池包接口150的上方。
电池包接口150可以沿着第一直线108的方向延伸，使得电池包200能沿着第一直线108的方向被插入电池包接口150以连接到壳体110，从而电池包200能平衡电机120和磨盘131的重量，使得用户握持握持部113时，切割工具100的重心沿着垂直于第一平面105的方向的投影与握持部113的投影重叠、或与附件安装部130的投影重叠，或者切割工具100的重心沿着垂直于第一平面105的投影位于握持部113和附件安装部130在该方向上的投影之间。例如，电池包接口150沿着垂直于第一直线108且平行于第一 平面105的方向延伸，使得电池包200能沿着垂直于第一直线108且平行于第一平面105的方向插入电池包接口150以连接到壳体110，可以调整切割工具100整机的重心位置，降低用户操作切割工具100时的负担。
在一个实施例中，切割工具100上未安装储液装置171时，切割工具100的重心沿着垂直于第一平面105的方向的投影位于底板111内，即切割工具100的重心的正投影位于底板111内。能使得整机平衡性更好，用户握持使用切割工具100时更加省力。在一个实施例中，切割工具100未安装储液装置171时，切割工具100的重心沿着垂直于第一平面105的方向的投影与握持部113的投影重叠、或与附件安装部130的投影重叠，或者切割工具100的重心沿着垂直于第一平面105的投影位于握持部113和附件安装部130在该方向上的投影之间。其中，上述投影是指正投影。
底板111具有使得切割工具100处于最大切割深度的第一位置，在底板111处于第一位置时，第一平面105到磨盘131最低点的直线距离大于或等于20mm，且小于或等于35mm。例如，该直线距离为20mm、22mm、24mm、26mm、29mm、32mm、35mm。能使得切割工具100的切深较小，更适合石材的切割工况，有效提升切割的精准度。
参照图3，壳体110还包括护罩114，设置于磨盘131的周侧。在垂直于第一平面105的方向，护罩114的顶部相对于握持部113的顶部更靠近底板111，且握持部113的顶部和护罩114的顶部在该方向的高度差被设置大于或等于100mm，或者大于或等于90mm。握持部113被设置在切割工具100的上部，握持部113包括供用户握持的把手，在前后方向上，把手在第一平面105内的正投影位于电池包200和电机120的投影之间。在前后方向上，把手的位置被设置在输出件1311的后方，便于用户推动切割工具100，降低用户推动切割工具100方向上的分力。在向后延伸的方向上，把手具有向下延伸的趋势，从而便于用户通过操作把手推动切割工具100。例如，握持部113的顶部和护罩114的顶部在该方向的高度差为120mm。本实施方式提出的切割工具100的护罩114不设有活动护罩114。
例如，储液装置171设置于附件安装部130上方，且位于握持部113一侧。输出件1311能绕第一轴线1312转动，储液装置171被安装到壳体110上时，沿着第一轴线在第一平面105内的正投影位于壳体110外轮廓在第一平面105的正投影之内。
参照图3，底板111沿着第一平面105延伸，在垂直于第一平面105的方向，储液装置171的顶部相对于握持部113的顶部更靠近底板111。示例性的，握持部113的顶部和储液装置171的顶部在该方向的高度差被设置大于或等于35mm。能防止储液装置171遮挡用户操作切割工具100时向锯切指示器的视野。
参照图8和图9，储液系统170包括引导件172，引导件172连接到储液装置171，能引导储液装置171内的液体流向底板111和/或磨盘131。在一个实施例中，引导件172可以是送水管，例如柔性或者刚性水管。需要说明的是，若引导件172为软性导管，可以增加导管固定件，以将导管固定在附件安装部130内，避免引导件172的引导口1721与磨盘131接触而损坏引导件172。例如，储液装置171里存储的液体可以是水。在一个实施例中，引导件172至少有两个引导口1721，引导口1721被设置朝向附件安装部130和/或壳体110。例如，引导件172设有两个水管，引导口1721被设置在附件安装部130上，或者被设置在附件安装部130和壳体110上。磨盘131绕旋转中心旋转，引导口1721被设置朝向旋转中心的前后方向，例如，引导口1721被设置在磨盘131的最前端和最后端，可以利用磨盘131对液体加速，使得液体从磨盘131流向底板111，带走底板111上的泥浆，并且同时可以保证对磨盘131的供水量，使得液体充分对磨盘131降温。
例如，参照图8，引导口1721设有三个，除了设置在磨盘131的最前端和最后端，还可以设置在引导件172旁边，从而能充分对磨盘131中心部分散热。储液系统170还包括系统控制件174。系统控制件 174设置在所述储液系统170的液体流通路径上，用以控制所述储液装置171内液体的流动状态。示例性的，系统控制件174为水阀，例如三通水阀，通过三通水阀174连接引导件172。
磨盘131安装到切割工具100时，沿着第二平面延伸，引导件172的末端被设置相对该第二平面倾斜地设置，从而增大冷却液体喷涂到磨盘131上形成的液体面积，提升散热效果。例如，参照图16，引导件172的末端被设置与第二平面形成的夹角α3大于或等于10度，且小于或等于60度，能防止从引导件172喷出的液体偏离磨盘131，同时增加冷却液体喷涂到磨盘131上形成的液体面积。
例如，储液系统170包括水泵，设置连接引导件172，在用户使用切割工具100切墙时，此时第一平面105垂直或近似垂直于地面，使得储液装置171内的液体不能充分流向引导口1721，此时通过水泵能输送液体，从而辅助切割工具100的作业。例如，切割工具100还包括惯性测量单元，设置为检测云石机的相对姿态，在第一平面105与地面的夹角的角度大于预设值时，通过控制器控制水泵运行。例如，水泵由用户控制开启。
储液装置171包括出液口。引导件172连接于出液口，出液口的直径大于或等于1mm，且小于或等于3mm，例如出液口直径为1mm、2mm或者3mm。出液口的液体流量大于或等于0/s，且小于或等于2g/s，从而保证对本实施方式提出的切割工具100的散热，并且防止储液装置171中的液体流失过快，使得用户不需要频繁补充液体。参照图12，在使用切割工具100的过程中，随着储液装置171中的液体流出，液压随之降低，以水为例，出液口的水流量也降低，在水充满储液装置171时，出液口的水流量为2.3g/s～2.5g/s，在储液装置171内的水的体积仅剩20％左右时，出液口的水流量为0.4/s～0.6g/s。
参照图7，图13到图15，底板111包括挡泥板1111，挡泥板1111相对第一平面105向上凸起。切割工具100能沿着第一直线108的方向切割，底板111具有使得切割工具处于最大切割深度的第一位置。在磨盘131铅垂设置且第一平面105位于水平面时，底板111处于第一位置。挡泥板1111被设置在所述底板111的后方，是指挡泥板1111相对底板111的中间位置相对靠后，防止底板111的上的水和泥浆溅射到用户身上。挡泥板1111前方设有排出口1114，使得水和泥浆直接从挡泥板1111前方的排出口1114排出。挡泥板1111的侧面形成止挡面1112，可以阻挡泥浆。止挡面1112向第一平面105的投影应当视为挡泥板1111整体的延伸方向。至少部分止挡面1112沿着垂直于第一平面105的方向向第一平面105的投影与第一直线108形成的夹角α1大于或等于100度，且小于或等于135度，从而利用止挡面1112的倾斜角度使得泥浆向止挡面1112的一侧排出。
例如，挡泥板1111沿着垂直于第一平面105的方向向所述第一平面105的投影沿着第二直线109延伸，第二直线109与第一直线108形成的夹角大于或等于100度，且小于或等于135度。底板111包括穿过其中心的中心线1113，中心线1113垂直于第一直线108的方向，在远离第一直线108的方向，第二直线109相对偏离底板111的中心线1113，通常用户在磨盘的一侧握持切割工具，如此设置可以促使泥浆远离用户的方向被排出，从而减少迸溅到用户身上的水含量和泥浆量。
止挡面1112和第一平面105的夹角的角度大于或等于10度，且小于或等于90度，止挡面1112与第一平面105之间的夹角过小时，会相对增大底板111尺寸，不利于整机的紧凑性，止挡面1112和第一平面105之间的夹角过大时，会增加泥浆越过挡泥板飞溅到挡泥板后部的概率。
操作图18，在挡泥板1111的末端还设有辅助挡泥板1115，设置为阻挡从挡泥板末端飞出的泥浆和水流，辅助挡泥板1115可以设置在挡泥板的末端的任意一侧或两侧。例如，辅助挡泥板1115设置于靠近第一直线的一侧。辅助挡泥板1115可以是L型，从而全面的阻碍泥浆。
底板111位于第一位置时，挡泥板1111沿着垂直于第一平面105方向的高度大于或等于11mm，且小于或等于15mm。充分利用底板111和机壳之间的间距，并且能提升对泥浆的阻碍效果。
参照图14，在沿着垂直于第一平面的方向，至少部分止挡面向第一平面的投影与中心线形成的夹角α2大于或等于10度，且小于或等于45度。
参照图10和图11，切割工具100包括连接装置173，通过连接装置173，储液装置171和壳体110可拆卸地连接。部分连接装置173被设置在壳体110上，部分设置于储液装置171。连接装置173包括滑动件1731和滑槽1732，滑动件1731在滑槽1732内滑动以对储液装置171和壳体110解锁和锁定。滑槽1732包括第一滑槽1733、第二滑槽1734以及锁定槽1735，第一滑槽1733和第二滑槽1734基本垂直，锁定槽1735和第二滑槽1734设置于第一滑槽1733的同一侧。用户在安装储液装置171时，将滑动件1731与第一滑槽1733对齐，将储液装置171向连接装置173推动，滑动件1731在第一滑槽1733内滑动，滑动到第一滑槽1733底部时，通过相对旋转水壶171，使得滑动件1731在第二滑槽1734内滑动，在滑动件1731滑动到第二滑槽1734末端时，滑动件1731被置入锁定槽1735，使得储液装置171和壳体110连接。例如，第二滑槽1734末端设有弹簧，以维持滑动件1731在锁定槽1735内。
例如，连接装置173适配于市供水，即可以连接到自来水管，用户可以根据需求用连接装置173连接储液装置171或者自来水管。
例如，部分引导件172被设置接触控制室161，例如，引导件172被设置“弓”字型在控制室161侧面延伸，从而增加引导件172和控制室161的接触面积，利用冷却液体对控制板160散热。
切割工具100还包括扳机107和系统控制件174。扳机107控制电机120的运行，系统控制件174控制引导件172内冷却液体的流通。
储液系统170还包括连动装置，连动装置连接扳机107和系统控制件174，在扳机107被按动时，连动装置带动系统控制件174开启。例如，连动装置包括连动件和弹性件1741，弹性件连接系统控制件174，在扳机107未被按动时，弹性件1741维持系统控制件174关闭引导件172，用户按动扳机107时，通过连动件带动系统控制件174开启，从而方便用户操作切割工具100，并且可以节约储液装置171内的冷却液体，降低用户需要添加冷却液体的次数。
在一个实施例中，系统控制件174为电动水阀，电动水阀包括电磁铁，切割工具100还包括控制器，在电机120运行时，控制器控制电磁铁位移，使得水阀174开启。例如，所述控制器被设置为，在扳机107被按动时，先开启水阀174，在N秒后控制电机120开启，可以提升散热效果；在扳机107被按动时，控制水阀174和电机120同时开启；在扳机107被启动时，先启动电机120，N秒后控制水阀174开启，可以节约冷却液体。例如，在扳机107被放开时，先控制电机120停止，再控制所述水阀174停止。
例如，储液系统170还包括振动感应器，在切割工具100被操作振动且达到预设频率时，通过控制器控制水阀174开启，对磨盘131和其它元件进行冷却，以及对灰尘和泥浆的清洗。
在采用电动水阀时，通过电力产生磁路导致电磁铁的温升较高，从而将电动水阀设置在本申请提出的散热风路中，或者设置引导件172接触电动水阀，利用引导件172内的冷却液体对电动水阀散热。
例如，切割工具100还包括水阀开关175，连接到水阀174控制电路，水阀174控制电路与电机120的控制电路独立，从而用户可以通过水阀开关175单独控制水阀174的开启和关闭。
参照图16，壳体110的前端还设有防水部115，其包括向下延伸的斜槽1151，设置为引导水和泥浆从壳体110上端排出。例如，壳体110还包括第三出风口116，第三出风口116朝向电池包200方向开口，壳体110内部产生的部分气流能通过第三出风口116流向电池包200，从而能吹散电池包200表面的水和泥浆。
在本申请的一种实施方式中，进风口被设置在放置控制板的控制室附近，使得风扇运行时气流从控制室流入电机壳体，再从电机壳体流出，而电机壳体上不再设有另外的进风口，从而使得散热气流先对 控制板散热再对电机散热，以保证对控制板的散热效率。
在一个实施例中，切割工具100中的扳机107设置在握持部113的前端，或者设置在握持部113上，以便用户手持工具时能更方便的操作控制工具的开关机。具体实现中，在用户按动扳机107时，控制器10能接受到扳机107输出的开机信号，并控制电机120开启，切割工具100启动带动磨盘131转动。在本实施例中，扳机107可以是按压式操作开关或者推动式开关或者旋钮式开关。扳机107可以根据按压力度不同产生不同的控制信号，或者根据推动行程不同产生不同控制信号，或者根据旋钮位置不同产生不同控制信号。
在本实施例中，扳机107能控制系统控制件174的导通状态。系统控制件174导通时引导件172内有液体流动，系统控制件174断开时引导件172内无液体流。也就是说，扳机107不仅能控制电机120的运行，还能控制储液装置171内液体的流通或者说控制引导件172内有无液体流通。
在一个实施例中，系统控制件174为电磁阀，包括电磁铁，在通电的情况下，电磁阀开启，储液装置171内的液体流出；断电的情况下，电磁阀关闭，储液装置171内的液体不能流出。具体实现中，切割工具100中的控制器10，在电机120运行时，可以控制电磁铁位移，使得系统控制件174开启。例如，所述控制器10被设置为，在扳机107被按操作时，先开启系统控制件174，在N秒后控制电机120开启，可以提升散热效果。例如，在扳机107被操作时，控制系统控制件174和电机120同时开启。例如，在扳机107被操作时，先启动电机120，N秒后控制系统控制件174开启，可以节约冷却液体。例如，在扳机107被放开及操作结束时，先控制电机120停止，再控制所述系统控制件174停止。
在一个实施例中，为实现电机120和系统控制件174之间不同的控制状态，扳机107可以具有多种不同的操作状态，不同操作状态下可以输出不同的控制信号至控制器10。例如，扳机107可以沿预设的方向具有一定的开关行程，在同步开关行程内能产生至少两种控制信号。其中，预设的方向指控制机器开机时开关的操作方向。在一种实现方式中，扳机107的不同开关行程对应其不同的操作状态，不同操作状态下产生不同的控制信号。例如，扳机107处于第一操作状态时能产生第一控制信号，处于第二操作状态时能产生第二控制信号。可以理解的，产生开关行程的方式与扳机107的种类相关，例如扳机107是按压式开关，在开关被不同力度按压时，对应的开关行程不同，按压力度小时开关行程小，按压力度大时开关行程大；再如扳机107是推动式开关，随用户沿设定的开启方向推动开关，开关行程逐渐增大；再如扳机107是旋钮开关，随用户沿设定的开启方向旋转拨钮，开关行程逐渐增大。例如，在扳机107的开关行程小于或等于第一形成阈值时，扳机107能产生第一控制信号；在扳机107的开关行程大于第一形成阈值时，扳机107能产生第二控制信号。
在本实施例中，控制器10能够获取扳机107输出的控制信号，并在获取到第一控制信号时，控制系统控制件174开启，以启动储液系统170。从而，储液装置171里的液体进入引导件172，液体经过引导件172后从引导口1721流出至磨盘131，以润湿磨盘131，能达到为磨盘散热或者润湿工件的作用。控制器10在获取到扳机107输出的第二控制信号时，能启动电机120转动。可以理解的，由于开关行程的变化过程耗时较短，因此可以在短时间内先启动系统控制件174再启动电机120。基于开关行程的变化实现了不同时启动系统控制件174和电机120，能在合适的时间内达到提前润湿工件和磨盘而不至于浪费水的目的。
在示例实施例中，可以将扳机107的开关行程细化。事例性的，在扳机107的开关行程小于或等于第二行程阈值时，扳机107不输出控制信号，即不提前开启储液装置171，能避免开关行程较长时浪费液体。在开关行程大于第三阈值且小于或等于第四阈值时，输出第三控制信号；控制器10可以基于第三控制信号控制系统控制件174周期性开启，也就是说，控制电磁阀循环开关。在开关行程大于第三行程阈 值时，扳机107输出第一控制信号，控制系统控制件174开启。可以理解的是，在开关行程大于第四行程阈值时，扳机107可以输出第二控制信号，控制电机120启动。其中，第四行程阈值大于第三行程阈值。通过设置上述开关行程下系统控制件174的不同开启状态，在开关行程较小时不开启，开关行程稍大时周期性开启，开关行程足够大时直接开启，可以更加灵活的适配具有不同开关行程的扳机107的开机动作。
需要说明的是，上述第一行程阈值与第二至第四行程阈值为不同实时方式下的设定值，与扳机107能够具有的总开关行程相关，并不具有可比性。因此不对第一行程阈值与第二至第四行程阈值的大小给出限定。
在一个实施例中，切割工具100工作的过程中，电机120转速为非线性变化。也就是说，不同工况下，电机120的转速不同。例如，石材较硬时为避免损坏磨盘，电机120转速较小，石材脚软时为提高效率，电机120转速可能较快。而不同工况下，所产生的尘屑或者磨盘的发热程度是不同的，因此，可以对储液系统170进行更精确的控制，以适应不同工况下的需求。
如图19所示，切割工具100还包括转速检测模块30，能够检测电机120的转速。控制器10能够获取转速检测模块30输出的电机120转速。并在电机120的转速小于第一转速阈值时，控制系统控制件174关闭；在转速大于或等于第一转速阈值且小于或等于第二转速阈值时，控制系统控制件174周期性开启；在转速大于第二转速阈值时，控制系统控制件174开启。通过控制输液系统在不同电机120转速下提供不同形式的出液方式或者不出液，在避免浪费液体的同时达到了较好的防尘或者降热效果。可以理解的是，控制器10也在电机120转速大于或等于第一转速阈值时，控制系统控制件174以较小的流量或者流速输出液体。事例性的，在电机120转速小于500转/分钟时，控制器10可以控制系统控制件174关闭；在电机120转速处于500转/分钟至3000转/分钟内，控制器10可以控制系统控制件174周期性的开启；在电机120转速大于3000转/分钟时，控制系统控制件174开启。需要说明的是，控制器10可以根据电机120的实际转速调整系统控制件174周期性开启的周期。
需要说明的，在电机120和控制器10之间还设有驱动电路20。驱动电路20可以将来自电池包200的电流传递至电机120的定子绕组以驱动电机120旋转。在一个实施例中，驱动电路20包括多个开关元件(未示出)，例如，包括六个开关元件。每个开关元件的栅极端与控制器10电性连接，设置为接收来自控制器10的控制信号。每个开关元件的漏极或源极与电机120的定子绕组连接。六个开关元件接收来自控制器10的控制信号以改变各自的导通状态，从而改变电池包200加载在电机120的定子绕组上的电流。在一个实施例中，驱动电路20可以是六个可控半导体功率器件(例如FET，BJT，IGBT等)的三相桥驱动器电路。可以理解的是，上述开关元件也可以是任何其他类型的固态开关，例如绝缘栅双极型晶体管(IGBT)，双极结型晶体管(BJT)等。
在一个实施例中，切割工具100工作的过程中，系统控制件174的温度也会由于频繁的通电或断电而造成温度升高，从而影响其控制的精确性。为解决这一问题，如图20所示，切割工具100还包括温度检测模块40，设置为检测系统控制件174的温度，并输出至控制器10。控制器10在系统控制件174的温度大于第一温度阈值且小于第二温度阈值时，控制其关闭；在温度大于或等于第二温度阈值时，控制电机120停止转动。事例性的，在系统控制件174的温度大于0°小于60°时，对电机120和系统控制件174均正常工作；在温度大于60°且小于90°时，系统控制件174温度较高，再继续工作会影响其性能，控制器10将控制器10关闭，但这时电机120仍可以正常工作；若温度继续升高大于或等于90°，则控制电机120停止转动，即此时的系统控制件174的温度也会对电机120的正常工作产生影响。
在一个实施例中，切割工具100工作的过程中，储液装置171内的液体容量会随着使用逐渐减低， 若低于一定值时未及时停止出液，则可能损坏储液系统350。如图21所示，切割工具100还可以包括流量检测模块50，设置为检测储液系统170内液体的流量，并将检测到的流量传输至控制器10，控制器10在流量小于流量阈值时，控制系统控制件174关闭。从而，可以在储液装置171内的液体较少时，提前关闭储液装置171，以免损坏储液系统170。
在一个实施例中，如图22所示，也可以在切割工具100中设置容量检测模块60，设置为检测储液装置174内液体的容量，并传输至控制器10。控制器10可以在液体容量小于容量阈值时，控制系统控制件174关闭。也能在储液装置171内液体不足以再为工具提供降热或者降尘功能前提前关闭，避免损坏储液系统170。
例如，在控制储液系统170停止出液后，控制器10可以控制工具100进行待机状态。并在储液装置171重新加满液体后，再次进入工作模式，即控制液体流出并启动电机120。例如，若在系统控制件174关闭的预设时间段内，控制器10检测到储液装置171内容量未增加或者再次开启储液系统170后液体流量未增加，则直接控制电机120停机。
在一个实施例中，若控制器10接收到第四控制信号，则控制电机120停止转动，并在预设时间段后控制系统控制件174关闭。可以理解的，扳机107在开关行程由最大变为零时可以发出第四控制信号。也就是说，第四控制信号是用户操作工具进行正常关机操作时由扳机107输出的信号。并不是非正常状态停机时控制电机120停止状态的控制信号。所谓的非正常状态停机可以包括：由于储液系统170内液体不足关闭系统控制件174后的一段时间未重新加液而关闭电机120；或者是由于系统控制件174温度较高而导致的关闭电机120。在本实施例中，用户操作工具正常关机的预设时间段后再关闭系统控制件174，可以在停机后快速为磨盘降温，也能达到更好降尘效果。
在一个是实施例中，控制器10在接收到第四控制信号时，可以检测电机120的当前转速，并根据该转速匹配合适的预设时间段。例如，电机120停机时的当前转速较高则所设置的预设时间段越长，反之亦然。另外，若关机时电机120转速很低，也可以同时关闭系统控制件174。
在一个实施例中，系统控制件174和控制器10之间设有至少一个功率元件，如MOS管，控制器10通过控制MOS管的导通状态控制系统控制件174的开启或关闭。
在一个实施例中，切割工具100的控制系统可以同时包括转速检测模块30、容量检测模块60、流量检测模块50以及温度检测模块40中的至少两个。还可以如图23所示，同时包括上述所有检测模块。
在一个实施例中，可以不通过控制器10控制系统控制件174的开启或关闭。而是在扳机107被触发时，根据自身被触发的操作状态联动的控制系统控制件174开启或者周期性开启或者关闭。例如，在扳机107被触发处于第一操作状态时，能触发系统控制件174开启，以启动储液系统170。而在扳机107处于第二操作状态时，能触发电机120转动。需要说明的是，扳机107处于第二操作状态时，可以在该状态下产生第二控制信号，并传输至控制器10，由控制器10控制开启电机120。也就是说，系统控制件174可被扳机107联动控制，而电机120可由控制器10控制。在一个实施例中，电机120也可以直接由扳机107控制启动而不经过控制器10。例如，扳机107可以随着其开关行程的变化联动的控制系统控制件174开启或者周期性开启或者关闭。
下面将结合图24说明切割工具100中电机和系统控制件的控制方法，该方法包括如下步骤：
S101，获取操作元件输出的控制信号。
可以理解的，操作元件可以在不同开关行程下输出不同的控制信号。
S102，在获取到第一控制信号时，控制系统控制件启动。
S103在获取到第二控制信号时，控制电机启动。
上述实施例中的控制方法也适用于对下述实施例中切割工具300的控制。
在一个实施例中，切割工具300如图25所示。切割工具300中的壳体310、电机320、附件安装部330以及传动机构340、进风口以及出风口等的结构与工作原理类似与图1至图18中的，为了简单起见，此处不再进行详细描述。在本实施例中，重点介绍与切割工具100中不同的结构及其原理。其他说明的结构可以参照上述实施例中的描述。另外，本实施例中，关于切割工具300中不同零组件的命名顺序也可以参照上述实施例中的命名顺序。
在一个实施方式中，储液装置371安装在壳体310上。如图25至图28和图30所示，储液装置371设置在护罩314上，位于工具整机的前端。护罩314上设置有安装接口3141，设置为安装储液装置371。储液装置371在第一平面305上的正投影在第一轴线3311上方向的长度大于或等于底板311在第一轴线3311方向上的长度。在一种实现方式中，如图30所示，储液装置371在第一平面305上的正投影近似为“L型。
参照图28和图29，切割工具300还包括连接装置373。通过连接装置373，储液装置371和壳体310可拆卸地连接。部分连接装置373被设置在壳体310上，部分设置于储液装置371。连接装置373包括与储液装置371的开口3711螺纹式连接的第一连接件3731，供用户控制开启或关闭的操作件3732以及连接在系统控制件374和操作件3732之间的连接件3733。在一种实现方式中，系统控制件374为电磁水阀。
参照图27，护罩314上设有第四出风口317。所述切割工具300还包括第二散热通道，所述第二散热通道连接电机壳体321和所述第四出风口317。第二散热通道能引导风扇转动形成的气流流入护罩314内部，为所述系统控制件374散热。在一种实现方式中，电机壳体321形成有壳体开口322，壳体开口322和第四出风口317是第二散热通道的入口和出口。

Claims (51)

  1. 一种切割工具，包括：
    壳体；
    电机，被所述壳体支撑；
    附件安装部，包括连接磨盘的输出件；
    传动机构，连接所述电机和所述输出件；
    底板，设置于所述壳体底部，具有供磨盘穿过的安装孔；
    所述切割工具还包括：
    储液系统，包括储液装置，设置为储存液体，所述储液装置可拆卸地安装到所述壳体上；
    所述电机为无刷电机，所述电机的最低转速不低于7000转/分钟。
  2. 如权利要求1所述的切割工具，还包括：
    电源接口，设置为接入电源；
    其中，所述壳体形成电机容纳部和握持部；
    所述电源接口设置于所述电机容纳部后端，所述附件安装部设置于所述电机容纳部侧端。
  3. 如权利要求1所述的切割工具，包括第一进风口和第一出风口；
    所述第一进风口设置于所述壳体后端，所述第一出风口设置于所述电机容纳部前端，部分气流能从所述第一进风口进入所述壳体内部，并流经所述电池包接口。
  4. 如权利要求1所述的切割工具，包括第二进风口和第二出风口；
    所述第二进风口设置于所述电池包接口，所述第二出风口设置于所述电机容纳部下端。
  5. 如权利要求1所述的切割工具，其中，所述底板沿着第一平面延伸；在所述切割工具上未安装所述储液装置时，所述切割工具的重心的正投影位于所述底板内。
  6. 如权利要求5所述的切割工具，其中，在所述切割工具未安装水壶时，所述切割工具的重心在所述第一平面内的正投影与所述握持部在所述第一平面内的正投影重叠、或与所述附件安装部在所述第一平面内的正投影重叠，或者所述切割工具的重心在所述第一平面内的正投影位于所述握持部在所述第一平面内的正投影和所述附件安装部在所述第一平面内的正投影之间。
  7. 如权利要求1所述的切割工具，其中，所述底板包括挡泥板，所述挡泥板相对所述第一平面向上凸起。
  8. 如权利要求7所述的切割工具，其中，所述切割工具可沿着第一直线的方向切割，所述底板具有使得所述切割工具处于最大切割深度的第一位置；所述挡泥板的侧面形成止挡面，在沿着垂直于所述第一平面的方向，至少部分所述止挡面向所述第一平面的投影与所述第一直线形成的夹角大于或等于100度，且小于或等于160度。
  9. 如权利要求8所述的切割工具，其中，所述底板位于所述第一位置时，所述挡泥板沿着垂直于所述第一平面方向的高度大于或等于10mm，且小于或等于20mm。
  10. 如权利要求8所述的切割工具，其中，在所述底板处于所述第一位置时，所述第一平面到磨盘最低点的直线距离大于或等于20mm，且小于或等于35mm。
  11. 如权利要求2所述的切割工具，其中，所述电源为电池包；所述电池包的额定电压大于或等于10V，且小于或等于26V。
  12. 如权利要求2所述的切割工具，其中，
    所述壳体还包括护罩，设置于所述磨盘的周侧；
    所述底板沿着第一平面延伸，
    在垂直于所述第一平面的方向，所述护罩的顶部相对于所述握持部的顶部靠近所述底板，且所述握持部的顶部和所述护罩的顶部在所述垂直于所述第一平面的方向的高度差被设置大于或等于100mm。
  13. 如权利要求12所述的切割工具，其中，所述储液装置至少部分位于所述护罩上方。
  14. 一种切割工具，包括：
    壳体；
    电机，被所述壳体支撑；
    附件安装部，包括连接磨盘的输出件；
    传动机构，连接所述电机和所述输出件；
    底板，设置于所述壳体底部，具有供磨盘穿过的安装孔；
    所述切割工具还包括：
    电源接口，设置为可拆卸地连接电源装置；
    储液系统，包括储液装置，设置为储存液体，所述储液装置可拆卸地安装到所述壳体上。
  15. 如权利要求14所述的切割工具，其中，
    所述壳体形成电机容纳部和握持部；所述切割工具包括第一进风口和第一出风口，所述第一进风口设置于所述壳体后端，所述第一出风口设置于所述电机容纳部前端，部分气流能从所述第一进风口进入所述壳体内部，并流经所述电池包接口。
  16. 如权利要求15所述的切割工具，其中，所述切割工具包括第二进风口和第二出风口，所述第二进风口设置于所述电池包接口，所述第二出风口设置于所述电机容纳部下端。
  17. 如权利要求16所述的切割工具，其中，所述电源装置包括电池包；
    所述电池包包括电池包壳体和设置于所述电池包壳体内部的电池芯，所述电池包壳体包括第一通风口和第二通风口，在所述电池包安装到所述电池包接口时，所述第二通风口和所述第二进风口连通。
  18. 如权利要求17所述的切割工具，还包括密封件，所述密封件设置于所述第二进风口周侧，在所述电池包安装到所述电池包接口时，能填充所述进风口与所述通风口连通时的间隙。
  19. 如权利要求16所述的切割工具，其中，
    所述电机包括电机壳体和设置于所述电机壳体内的风扇，
    所述切割工具还包括第一散热通道，所述第一散热通道连接所述电机壳体和所述第二进风口，以引导气流通过所述第一散热通道流入所述电机壳体内部。
  20. 如权利要求14所述的切割工具，还包括：
    控制板，包括控制电路，能控制所述电机运转；
    所述壳体形成容纳所述控制板的控制室。
  21. 如权利要求20所述的切割工具，其中，所述电机壳体包括第三通风口，所述第三通风口朝向所述控制室敞开，设置为引导部分气流从所述控制室进入所述电机壳体。
  22. 如权利要求14所述的切割工具，其中，所述握持部设置于所述电机容纳部和所述电池包接口的上方。
  23. 一种切割工具，包括：
    壳体；
    电机，被所述壳体支撑；
    附件安装部，包括连接磨盘的输出件；
    传动机构，连接所述电机和所述输出件；
    底板，设置于所述壳体底部，具有供磨盘穿过的安装孔；
    所述切割工具还包括：
    储液系统，包括储液装置，设置为储存液体，所述储液装置可拆卸地安装到所述壳体上；
    系统控制件，设置在所述储液系统的液体流通路径上，用以控制所述储液装置内液体的流动状态。
  24. 如权利要求23所述的切割工具，其中，
    壳体，形成电机容纳部和握持部；
    所述电池包接口设置于所述电机容纳部后端，所述附件安装部设置于所述电机容纳部侧端。
  25. 如权利要求23所述的切割工具，还包括控制板，设置于所述电机容纳部前端。
  26. 如权利要求23所述的切割工具，其中，所述储液装置至少部分设置于所述附件安装部上方。
  27. 如权利要求23所述的切割工具，其中，所述输出件能绕第一轴线转动；所述储液装置被安装到所述壳体上时，沿着所述第一轴线的投影位于所述壳体外轮廓的投影之内。
  28. 如权利要求27所述的切割工具，其中，所述底板沿着第一平面延伸，在垂直于所述第一平面的方向，所述水壶的顶部相对于所述握持部的顶部靠近所述底板。
  29. 如权利要求23所述的切割工具，其中，
    所述系统控制件与所述储液装置连接，能控制所述储液装置内的液体流出；
    所述储液系统还包括：
    引导件，所述引导件与所述系统控制件连接，能够将所述储液装置内流出的液体流向所述底板和所述磨盘。
  30. 如权利要求29所述的切割工具，其中，所述储液装置包括出液口，所述引导件连接于所述出液口，所述出液口的直径大于或等于1mm，且小于或等于3mm。
  31. 如权利要求30所述的切割工具，其中，所述出液口的液体流量大于或等于0.1g/s，且小于或等于2g/s。
  32. 如权利要求23所述的切割工具，还包括连接装置，通过所述连接装置所述储液装置和所述壳体可拆卸地连接；
    所述连接装置包括：
    滑动件和滑槽，所述滑动件在所述滑槽内滑动以对所述储液装置和所述壳体解锁和锁定。
  33. 如权利要求32所述的切割工具，其中，
    所述滑槽包括第一滑槽、第二滑槽以及锁定槽，所述第一滑槽和第二滑槽基本垂直，所述锁定槽和所述第二滑槽设置于所述第一滑槽的同一侧。
  34. 如权利要求29所述的切割工具，其中，所述引导件至少包括两个引导口，所述引导口被设置朝向所述附件安装部和所述壳体中的至少之一。
  35. 如权利要求34所述的切割工具，其中，所述壳体形成容纳控制板的控制室，部分所述引导件被设置接触所述控制室。
  36. 如权利要求23所述的切割工具，还包括扳机，所述扳机控制所述电机的运行。
  37. 如权利要求36所述的切割工具，其中，所述储液系统还包括连动装置，所述连动装置连接所述扳机和所述系统引导件，在所述扳机被按动时，所述连动装置带动所述系统引导件开启。
  38. 如权利要求23所述的切割工具，其中，所述系统控制件为电动水阀，
    所述切割工具还包括控制器，在所述电机运行时，所述控制器控制所述电动水阀开启。
  39. 如权利要求23所述的切割工具，其中，
    所述电机包括电机壳体和设置于所述电机壳体内的风扇，
    所述护罩上设有第四出风口；
    所述切割工具还包括第二散热通道，所述第二散热通道连接所述电机壳体和所述第四出风口，以引导所述风扇转动形成的气流通过所述第二散热通道流入所述护罩内部为所述系统控制件散热。
  40. 一种切割工具，包括：
    壳体；
    电机，设置在所述壳体内，以为所述切割工具提供驱动力；
    操作元件，能被用户触发具有多种操作状态；
    储液系统，包括安装在所述壳体上的储液装置和引导液体流动方向的引导件；
    系统控制件，设置在所述储液系统的液体流通路径上，用以控制所述储液装置内液体的流动状态；
    控制器，至少与所述操作元件和所述系统控制件电连接；
    所述控制器被配置为：
    获取所述操作元件在不同操作状态下输出的控制信号；
    在获取到第一控制信号时，控制所述系统控制件开启以启动所述储液系统；
    在获取到第二控制信号时，控制所述电机转动。
  41. 根据权利要求40所述的切割工具，其中，所述操作元件沿预设方向具有一定的开关行程；
    所述控制器被配置为：
    根据所述操作元件的开关行程控制所述系统控制件和所述电机的启动顺序。
  42. 根据权利要求41所述的切割工具，其中，所述控制器被配置为：
    响应于确定所述操作元件的开关行程小于或等于第一行程阈值，获取所述操作元件输出的所述第一控制信号，控制所述系统控制件启动；
    响应于确定所述操作元件的开关行程大于所述第一行程阈值，获取所述操作元件输出的所述第二控制信号，控制所述电机转动。
  43. 根据权利要求41所述的切割工具，其中，所述控制器被配置为：
    响应于确定所述操作元件的开关行程大于第二行程阈值，且小于或等于第三行程阈值，获取所述操作元件输出的第三控制信号，控制所述系统控制件周期性开启；
    响应于确定所述操作元件的开关行程大于所述第三行程阈值，获取所述操作元件输出的所述第一控制信号控制所述系统控制件启动。
  44. 根据权利要求40所述的切割工具，还包括：
    转速检测模块，设置为检测所述电机的转速；
    所述控制器被配置为：
    获取所述电机的转速；
    响应于确定所述转速小于第一转速阈值，控制所述系统控制件关闭；
    响应于确定所述转速大于或等于所述第一转速阈值，且小于或等于第二转速阈值，控制所述系统控制件周期性开启；
    响应于确定所述转速大于所述第二转速阈值，控制所述系统控制件开启。
  45. 根据权利要求40所述的切割工具，还包括：
    温度检测模块，设置为检测所述系统控制件的温度；
    所述控制器被配置为：
    获取所述温度检测模块输出的温度；
    响应于确定所述温度大于第一温度阈值且小于第二温度阈值，控制所述系统控制件关闭；
    响应于确定所述温度大于或等于所述第二温度阈值，控制所述电机停止转动。
  46. 根据权利要求40所述的切割工具，还包括：
    流量检测模块，设置为检测所述储液系统内液体的流量；
    所述控制器被配置为：
    响应于确定所述流量小于流量阈值，控制所述系统控制件关闭。
  47. 根据权利要求40所述的切割工具，还包括：
    容量检测模块，设置为检测所述储液装置内液体的容量；
    所述控制器被配置为：
    响应于确定所述容量小于容量阈值，控制所述系统控制件关闭。
  48. 根据权利要求40所述的切割工具，其中，所述控制器被配置为：
    响应于确定获取到第四控制信号，控制所述电机停止转动，并在预设时间段后控制所述系统控制件关闭。
  49. 根据权利要求48所述的切割工具，其中，所述控制器被配置为：
    响应于确定获取到第四控制信号，检测所述电机的当前转速；
    根据所述电机的当前转速匹配相应的预设时间段。
  50. 一种切割工具，包括：
    壳体；
    电机，设置在所述壳体内，以为所述切割工具提供驱动力；
    储液系统，包括安装在所述壳体上的储液装置和引导液体流动方向的引导件；
    系统控制件，设置在所述储液系统的液体流通路径上，用以控制所述储液装置内液体的流动状态；
    操作元件，能被用户触发具有多种操作状态；
    所述操作元件处于第一操作状态时，能触发所述系统控制件开启以启动所述储液系统；
    所述操作元件处于第二操作状态时，能触发所述电机转动。
  51. 一种切割工具，包括：壳体；
    电机，被所述壳体支撑；
    附件安装部，包括连接磨盘的输出件；
    传动机构，连接所述电机和所述输出件；
    底板，设置于所述壳体底部，具有供磨盘穿过的安装孔；
    所述壳体包括护罩；
    所述护罩设置在所述底板上侧。
PCT/CN2021/139118 2020-12-25 2021-12-17 切割工具 WO2022135296A1 (zh)

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