Power tool

Abstract

The application provides a power tool, comprising: an output assembly capable of outputting work; a housing supporting the output assembly; a power unit for driving the output assembly; the housing comprises: a main body portion for supporting the output assembly; a holding portion arranged for a user to hold; a power connection portion for connecting a power supply device; the main body portion and the power connection portion are respectively arranged at two ends of the holding portion; an illuminating device for illuminating; the illuminating device is mounted to the power connection portion, and the illuminating device comprises: a cover body; a light source assembly comprising at least one light emitting element; the light emitting element is arranged in the cover body, and the cover body has an outlight surface allowing light to exit; the power tool has a central plane, and the ratio of the size of the outlight surface in the width direction perpendicular to the central plane to the size of the power connection portion in the width direction is greater than or equal to 0.5 and less than or equal to 1. The illuminating performance of the illuminating device of the power tool is improved, and the user can use the power tool conveniently.

Description

TECHNICAL FIELD

[0001] The present application relates to a power tool. BACKGROUND

[0002] Traditional partial power tools are equipped with lighting devices for illuminating the working environment to help users operate the power tools. The existing lighting devices of power tools have the problem of insufficient brightness of the light-emitting elements, thereby affecting the operation accuracy of the users and being not conducive to improving the user's use of the power tools. SUMMARY

[0003] To solve the problems of the prior art, the purpose of the present application is to provide a power tool, the lighting performance of the lighting device of which is improved, and the power tool is convenient for users to use.

[0004] In order to achieve the above main application purpose, the present application provides a power tool, comprising: an output assembly capable of outputting work; a housing supporting the output assembly; a power unit for driving the output assembly; the housing comprises: a main body portion for supporting the output assembly; a holding portion arranged for a user to hold; a power connection portion for connecting a power supply device; the main body portion and the power connection portion are respectively arranged at two ends of the holding portion; a lighting device for lighting; the lighting device is mounted to the power connection portion, and the lighting device comprises: a cover body; a light source assembly comprising at least one light-emitting element; the light-emitting element is arranged in the cover body, characterized in that: the cover body has an outlight surface allowing light to exit, the power tool has a central plane, and the ratio of the size of the outlight surface in the width direction perpendicular to the central plane to the size of the power connection portion in the width direction is greater than or equal to 0.5 and less than or equal to 1.

[0005] Optionally, the distance between the two light-emitting elements farthest apart is greater than or equal to 12 mm and less than or equal to 50 mm.

[0006] Optionally, the housing comprises the holding portion and the power connection portion, the holding portion and the power connection portion are connected, the holding portion is for holding, and the power connection portion is capable of connecting the power supply device; the lighting portion is arranged at the front end of the power connection portion.

[0007] Optionally, the power tool comprises: a trigger for controlling the opening of the power unit and the lighting portion.

[0008] Optionally, the power tool comprises: a trigger for controlling the opening of the power unit and the lighting portion.

[0009] Optionally, the lighting switch is arranged at the front end of the power connection portion.

[0010] Optionally, the power tool further comprises a control board, the lighting unit and the power unit are in communication connection with the control board, the control board is arranged in the power connection portion or between the power connection portion and the holding portion.

[0011] Optionally, the lighting unit forms a light emitting surface, an area of the light emitting surface is greater than or equal to 35 square millimeters and less than or equal to 145 square millimeters.

[0012] Optionally, the lighting unit is a strip-shaped light bar.

[0013] Optionally, the housing further comprises a head housing, and the lighting unit is arranged in the holding portion or the head housing.

[0014] Beneficial effects: the lighting device of the power tool provided by the application improves the lighting intensity of the lighting device by arranging a plurality of light emitting elements, and facilitates the user to operate the power tool. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of the power tool provided by the first embodiment of the application;

[0016] Figure 2 is Figure 1 a schematic diagram of the planar structure of the power tool provided by the application;

[0017] Figure 3 is Figure 1 a schematic diagram of the internal structure of the power tool provided by the application;

[0018] Figure 4A is Figure 1 a schematic diagram of the structure of the lighting unit of the power tool provided by the application;

[0019] Figure 4B is Figure 1 a schematic diagram of the planar structure of the lighting unit of the power tool provided by the application;

[0020] Figure 5 is a schematic diagram of the structure of the lighting unit of the power tool provided by an embodiment of the application;

[0021] Figure 6 is a schematic diagram of the structure of the lighting unit of the power tool provided by an embodiment of the application;

[0022] Figure 7 is a schematic diagram of the structure of the lighting unit of the power tool provided by an embodiment of the application;

[0023] Figure 8 is a schematic diagram of the width of the lighting unit of the power tool provided by an embodiment of the application; DETAILED DESCRIPTION

[0024] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0025] The present application is described in detail below in conjunction with the drawings and specific embodiments.

[0026] Figure 1 The schematic diagram of the power tool 100 of the present application, the power tool 100 is specifically a hand-held electric tool, which can be a rotary impact tool such as an impact screwdriver or an impact wrench, or a rotary electric tool such as an electric drill, a power tool, etc.

[0027] Referring to Figures 1 to 3 , the power tool 100 comprises a housing 110, a power unit 120, an output assembly 130 for outputting driving force, and a transmission assembly 140, the power unit 120 is located inside the housing 110, and the power unit 120 can be a motor. The output assembly 130 is arranged at the front end of the housing 110. The power unit 120 has a motor shaft for providing rotary output, and the power unit 120 comprises a stator and a rotor. The transmission assembly 140 is connected with the power unit 120 and the output assembly 130, and is used for transmitting the output of the power unit 120 to the output assembly 130. Specifically, when the power tool 100 is a rotary impact tool, the transmission assembly 140 rotates the rotary output of the motor shaft after deceleration. Referring to Figure 3 , the output assembly 130 comprises an impact force generating mechanism for generating impact force, and a control board 180 is electrically connected with the power unit 120 for controlling the output of the power unit 120, and the control board 180 is accommodated in the housing 110. When the power tool 100 is a rotary electric tool, the power unit 120 drives the output assembly 130 to rotate through the transmission assembly 140.

[0028] Referring to Figure 2 , the housing 110 is formed with an accommodation cavity, and at least part of the power unit 120 and part of the transmission assembly 140 are accommodated in the accommodation cavity. In the present embodiment, the power unit 120 and the transmission assembly 140 are accommodated in the accommodation cavity formed by the housing 110 and are arranged along the axis direction of the motor shaft of the power unit 120. The transmission assembly 140 is connected to the power unit 120 and is located in front of the power unit 120 relative to the housing 110. The power unit 120 and the transmission assembly 140 constitute coaxial rotation, and of course can also constitute non-coaxial rotation.

[0029] The power tool 100 further comprises a body portion for supporting the output assembly, a handle portion 112 and a power connection portion 111, which are respectively arranged at two ends of the handle portion 112. The body portion is used for supporting the output assembly. The handle portion 112 and the power connection portion 111 are connected, the handle portion 112 is used for being held by a user, and the power connection portion 111 is used for connecting a power supply device to supply power to the power unit 120.

[0030] The housing 110 further comprises a head housing 113, and the output assembly 130 is supported by the head housing 113, and the output assembly 130 is arranged at a front end of the power tool 100 relative to the power unit 120. The motor shaft of the power unit 120 can rotate around the first axis to drive the output assembly 130 to rotate around the first axis.

[0031] The power tool 100 further comprises a power supply device for providing power to the power tool 100. Optionally, the power tool 100 uses a direct current power supply, and more specifically, the power tool 100 uses a battery pack to supply power, and the battery pack cooperates with a corresponding power circuit to supply power to the power unit 120 and the circuit components on the control board 180. Those skilled in the art should understand that the power supply is not limited to the scenario of using the battery pack, and can also be achieved by using a mains power supply, an alternating current power supply, cooperating with a corresponding rectification, filtering and voltage regulation circuit to supply power to each circuit element.

[0032] With reference to Figure 3 and Figure 4A , the power tool 100 further comprises an illumination portion 200 for illuminating the working environment of the power tool 100 to facilitate the user to operate the power tool 100. The illumination portion 200 comprises a plurality of light emitting elements 210 and a cover body 220, the light emitting elements 210 are arranged in the cover body 220, and the cover body 220 can condense light for the light emitting elements 210. The light emitting elements 210 can be LED lamp beads or COB lamp beads. The plurality of light emitting elements 210 have a spacing, so that the illumination portion 200 constitutes a surface light emitting element 211, so that the illumination area of the illumination portion 200 is wider, and higher brightness can be provided.

[0033] The tool has a central axis 102, a vertical plane passing through the central axis 102 is a center plane, and the tool is at least partially symmetrical about the center plane. The cover body has a light exit surface allowing light to exit, the power tool has a center plane, and a ratio of a size L2 of the light exit surface in a width direction perpendicular to the center plane to a size L3 of the power connection portion in the width direction is greater than or equal to 0.5 and less than or equal to 1. With reference to Figure 1 and Figure 2The lighting unit 200 is arranged at the front end of the power connection unit 111, and is arranged as a strip-shaped light belt extending transversely at the front end of the power connection unit 111 for illuminating the front end of the power tool 100. Optionally, referring to Figure 4B The light emitting elements 210 are arranged in the cover 220 at equal intervals, and are arranged transversely and in multiple, so that the distance L1 between the two light emitting elements 210 with the largest interval is greater than or equal to 12 mm and less than or equal to 50 mm, so that the lighting unit 200 has a higher lumen value. Thus, the strip-shaped lighting unit 200 can provide a wider illumination area and a higher brightness. The lighting unit 200 is arranged at the front end of the power connection unit 111, where the output assembly 130 is defined as being located at the front end of the power unit 120. The above structure of the lighting unit 200 forms a light emitting surface with an area greater than or equal to 35 mm2 and less than or equal to 145 mm2. Thus, the ambient brightness when the user uses the power tool 100 can be improved, and the accuracy of the user's operation of the power tool 100 can be improved.

[0034] Optionally, the lighting unit 200 has the same width as the front end surface of the power connection unit 111, so that the lighting unit 200 penetrates the front end surface of the power connection unit 111, and the light emitting elements are arranged transversely at the front end surface of the power connection unit.

[0035] Optionally, the lighting unit 200 is arranged on the side or above the holding unit 112, or the lighting unit 200 is arranged on the head cover 113. Specifically, the lighting unit 200 can be arranged at the front end, the rear end and the side of the head cover 113.

[0036] Optionally, the power tool 100 includes a trigger 150 for controlling the opening of the power unit 120 and the lighting unit 200. The power tool 100 further includes a control board 180, and the lighting unit 200 and the power unit 120 are communicatively connected to the control board 180. The control board 180 is arranged in the power connection unit 111, so that the internal structure of the power tool 100 is compact, or is arranged between the power connection unit 111 and the holding unit 112. The control board 180 is used to control the operation of the power unit 120 and the lighting unit 200.

[0037] The user sends a signal to the control board 180 by pressing the trigger 150 to start the power unit 120, and the control board 180 controls the lighting unit 200 to start at the same time. When the trigger 150 is not pressed, the control board 180 controls the power unit 120 to stop, and controls the lighting unit 200 to stop. An algorithm can be set in the control board 180 to make the lighting unit 200 stop after N seconds after the power unit 120 stops. For example, the control board 180 is set to make the lighting unit 200 stop after 15 seconds after the power unit 120 stops. Here, the power unit 120 stops means that the power unit 120 stops running when the trigger 150 is closed.

[0038] Optionally, the power tool 100 comprises a trigger 150 and a lighting switch 170. The trigger 150 controls the power unit 120 to start. The lighting switch 170 controls the lighting unit 200 to start. The power tool 100 further comprises a control board 180. The lighting unit 200 and the power unit 120 are connected to the control board 180 in communication. The control board 180 is arranged in the power connection part 111. The control board 180 is used to control the running of the power unit 120 and the lighting unit 200. The user sends a signal to the control board 180 by pressing the trigger 150 to start the power unit 120, and the control board 180 controls the lighting unit 200 to start at the same time. When the trigger 150 is not pressed, the control board 180 controls the power unit 120 to stop, and controls the lighting unit 200 to stop. The lighting switch 170 is connected to the control board 180. The lighting switch 170 is used to adjust the brightness and the running mode of the lighting unit 200. The lighting switch 170 can be used to control the lighting unit 200 to switch to a high-brightness mode, a medium-brightness mode and a low-brightness mode. At the same time, the lighting switch 170 can be used to control the lighting unit 200 to switch to a start-stop mode, such as making the lighting unit 200 stop after N seconds after the power unit 120 stops, or switching the lighting unit 200 to a constant-on mode. The lighting switch 170 is arranged at the front end of the power connection part 111, and the control board 180 is arranged in the power connection part 111, so that the lighting switch 170, the lighting unit 200 and the control board 180 are arranged compactly, and the wiring is facilitated.

[0039] Optionally, the power tool 100 comprises a trigger 150 and a lighting switch 170. The trigger 150 controls the power unit 120 to start. The lighting switch 170 controls the lighting unit 200 to start. The power tool 100 further comprises a control board 180. The lighting unit 200 and the power unit 120 are connected to the control board 180 in communication. The control board 180 is arranged in the power connection part 111. The control board 180 is used to control the running of the power unit 120 and the lighting unit 200. The lighting unit 200 and the power unit 120 are independent of each other. The lighting switch 170 is used to control the lighting unit 200 to start. The user sends a signal to the control board 180 by pressing the trigger 150 to start the power unit 120. The user needs to press the lighting switch 170 to control the lighting unit 200 to start.

[0040] The light emitting surface is inclined upward and forward, and the output assembly is arranged at the front of the whole machine and above the power supply connecting portion.

[0041] Optionally, the lighting switch and the lighting portion are arranged at the power supply connecting portion, and the straight-line distance between the lighting switch and the lighting portion is less than or equal to 40 mm, so as to facilitate the user to control the lighting switch and facilitate the wire arrangement inside the power tool.

[0042] Optionally, the lighting portion 200a further comprises a light guide 230a arranged in the middle of the light emitting element 210a, and at least two light emitting elements 210a are arranged at two ends of the light guide 230a respectively, for guiding the light emitted by the light emitting element 210a, so that the lighting portion 200a as a whole forms a surface light emitting element. The light guide 230a has a certain size, so that the distance between the two light emitting elements 210a with the largest spacing is greater than or equal to 12 mm and less than or equal to 50 mm, so that the lamp strip-shaped lighting portion 200a can provide a wider illumination area and higher brightness.

[0043] Optionally, the distance between the two light emitting elements 210a with the largest spacing is greater than or equal to 20 mm and less than or equal to 40 mm, and the area of the light emitting surface is greater than or equal to 40 cubic millimeters.

[0044] Optionally, the area of the light emitting surface is greater than or equal to 35 square millimeters and less than or equal to 80 square millimeters, so as to reduce the influence of the arrangement of the lighting portion on the size of the power tool.

[0045] Optionally, in addition to the strip arrangement, the light emitting element 210 can be arranged in a ring shape, a circular shape to form a circular lighting portion 200b, a rectangular shape to form a rectangular lighting portion 200c or other shapes, and the area of the light emitting surface is greater than or equal to 35 cubic millimeters, so as to improve the illumination range and lumen value intensity of the lighting portion.

[0046] In the description of the present application, it should be noted that the terms “center”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms “first”, “second” are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0047] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0048] The above embodiments only illustrate the basic principles and characteristics of the present application, and the present application is not limited to the above embodiments. Various changes and modifications can be made without departing from the spirit and scope of the present application, and these changes and modifications all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A power tool, comprising: an output assembly capable of outputting work; a housing supporting the output assembly; a power unit for driving the output assembly; the housing comprising: a main body portion for supporting the output assembly; a grip portion arranged for a user to hold; a power connection portion for connecting a power supply device; the main body portion and the power connection portion being arranged at opposite ends of the grip portion; an illumination portion for illumination; characterized in that the illumination portion is mounted to the power connection portion, the illumination portion comprising: a cover body; a light source assembly comprising at least one light emitting element; the light emitting element being arranged in the cover body, characterized in that the cover body has a light exit surface allowing light to exit, the power tool having a central plane, a ratio of a dimension of the light exit surface in a width direction perpendicular to the central plane to a dimension of the power connection portion in the width direction being greater than or equal to 0.5 and less than or equal to 1; wherein the light emitting element has a plurality of light emitting elements, the cover body condensing light of the light emitting elements, the plurality of light emitting elements having a spacing such that the illumination portion constitutes a surface light emitting element, a distance between two light emitting elements farthest apart being greater than or equal to 12 mm and less than or equal to 50 mm.

2. The power tool of claim 1, wherein: the power tool comprising: a trigger for controlling the power unit and the illumination portion to be turned on.

3. The power tool of claim 1, wherein: the power tool comprising: a trigger for controlling the power unit to be turned on, and an illumination switch for controlling the illumination portion to be operated.

4. The power tool of claim 3, wherein: the illumination switch being arranged at a front end of the power connection portion.

5. A power tool according to claim 2 or 3, characterized in that: the power tool further comprising a control board, the illumination portion and the power unit being communicatively connected to the control board, the control board being arranged in the power connection portion or between the power connection portion and the grip portion.

6. The power tool of claim 1, wherein: the illumination portion forming a light exit surface, an area of the light exit surface being greater than or equal to 35 mm2 and less than or equal to 145 mm2.

7. The power tool of claim 6, wherein: the illumination portion being a strip-shaped light bar.

8. The power tool of claim 1, wherein: the housing further comprising a head housing, the illumination portion being arranged in the grip portion or the head housing.

9. The power tool of claim 1, wherein: the illumination portion being arranged at a front end of the power connection portion.

10. The power tool of claim 1, wherein: the light exit surface being arranged to be inclined upward and forward.

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