Electric tool

Abstract

The utility model discloses an electric tool which comprises a shell, a motor and a controller. The shell is provided with a mounting cavity. The motor is arranged in the mounting cavity, and the output end of the motor is connected with the working unit. The controller is arranged in the mounting cavity and electrically connected with the motor, and the controller is provided with a circuit board. The electric tool further comprises a light source and a light guide structure. The light source is electrically connected to the circuit board. The light guide structure is connected to the shell and provided with a light channel, the light channel is provided with an inlet and an outlet, a reflecting face is arranged in the light channel, the inlet is located in one side of the shell and close to the light source, and the outlet is located in the other side of the shell. Wherein light of the light source enters the inlet in the first direction, the reflecting surface reflects the light and enables the light to leave from the outlet in the second direction, and the first direction and the second direction are arranged at an angle. The electric tool has the advantage of reminding a user in time when the electric tool runs abnormally.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric tool technical field, especially a kind of electric tool of abnormal prompt function. BACKGROUND

[0002] Brushless tool, especially brushless electric tool, is usually driven by controller to make motor run to make output end tool element carry out cutting, polishing etc., because it is convenient to carry, work efficiency is high, and it is favored by user. However, controller is often after long-term use Dust accumulation, heat quantity is too high, further, if user cannot know the running state or fault problem of controller in time, controller can exist the risk of damage.

[0003] Therefore, it is necessary to provide an improved electric tool to overcome the defects in the prior art. SUMMARY

[0004] The main purpose of the utility model is to provide an electric tool, to provide an electric tool with abnormal prompt function.

[0005] To achieve the above-mentioned purpose, the utility model provides an electric tool, comprising:

[0006] Shell, provided with mounting cavity;

[0007] Motor, provided in the mounting cavity, the output end of the motor is connected to the working unit;

[0008] Controller, provided in the mounting cavity, and electrically connected to the motor, the controller is provided with circuit board, characterized in that, the electric tool further comprises:

[0009] Light source, electrically connected to the circuit board;

[0010] Light guide structure, connected to the shell, the light guide structure is provided with light channel, the light channel is provided with inlet and outlet, the light channel is provided with reflecting surface, the inlet is located in one side of the shell and close to the light source, the outlet is located in the other side of shell;

[0011] Among them, the light of the light source enters the inlet along the first direction, the reflecting surface reflects the light and makes the light exit from the outlet along the second direction, the first direction and the second direction are arranged at angle.

[0012] Optionally, the light guide structure comprises:

[0013] Display part, the display part is provided in the shell, and the outlet is provided in the display part;And

[0014] A light guide part is connected to the display part, the inlet is arranged at one end of the light guide part away from the display part, the reflecting surface is located in the light guide part, and the reflecting surface is adjacent to the light source.

[0015] Optionally, the shell is provided with a mounting hole, and the display part comprises:

[0016] a mounting block connected to the shell and located in the mounting cavity; and

[0017] a display block, one end of which is connected to the mounting block and penetrates through the mounting hole, and the other end of which extends to a side of the shell away from the mounting cavity, and the outlet is arranged at one end of the display block away from the mounting block.

[0018] Optionally, the outlet is provided with a convex lens.

[0019] and / or, the outlet is provided with a translucent coating.

[0020] Optionally, the controller further comprises a packaging box, the packaging box is arranged in the mounting cavity, the circuit board is arranged in the packaging box, and the packaging box and the shell are clamped on both sides of the mounting block.

[0021] Optionally, the mounting block is provided with a positioning column abutting against the packaging box.

[0022] Optionally, the light guide part is a columnar structure, the light guide part is provided with a first side and a second side arranged at intervals, the first side is arranged adjacent to the light source, the inlet end is arranged at the first side, and the second side is provided with the reflecting surface.

[0023] Optionally, the light source is an LED lamp.

[0024] Optionally, the inlet is provided with a concave lens.

[0025] Optionally, the light guide structure is made of glass or organic glass.

[0026] The application provides an electric tool with a light guide structure. The electric tool comprises a housing, a motor and a controller, wherein the housing is internally provided with a mounting cavity, the motor is mounted in the mounting cavity, an output end of the motor is connected with a working unit, and the working unit is used for performing actions such as cutting or polishing. The controller is mounted in the mounting cavity and electrically connected with the working unit, and can control the running state of the working unit. The electric tool further comprises a light source and a light guide structure, the light source is electrically connected with the controller, and the light guide structure is connected with the housing. An entrance of a light channel of the light guide structure is adjacent to the light source, and an exit is outside the housing. The light channel in the light guide structure has a reflecting surface, which can reflect light from a first direction to a second direction, and then transmit the light of the light source from inside the housing to outside the housing. Through the application, when the running state of the electric tool or the motor is abnormal, the controller can obtain an abnormal signal and control the light source to emit light, the light guide structure guides the light to outside the housing to prompt the user, so that the user can stop running the electric tool in time to avoid safety accidents or other accidents. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in the drawings without creative labor.

[0028] Figure 1 It is a whole structure schematic diagram of the electric tool of the present application;

[0029] Figure 2 It is a whole structure internal schematic diagram of the electric tool of the present application;

[0030] Figure 3 It is a structure explosion schematic diagram of the electric tool of the present application;

[0031] Figure 4 It is a structure schematic diagram of the controller of the electric tool of the present application;

[0032] Figure 5 It is a structure schematic diagram of the light guide structure of the electric tool of the present application.

[0033] Explanation of reference numerals:

[0034] Housing-1; housing part-11; mounting cavity-12; slot-111; mounting hole-112; motor-2; working unit-21; controller-3; packaging box-31; circuit board-32; light source-4; light guide structure-5; light guide part-51; first side-511; second side-512; reflecting surface-513; display part-52; mounting block-521; positioning column-5211; display block-522; inlet-6; outlet-7.

[0035] The realization, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0037] It should be noted that all the directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications also change accordingly.

[0038] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0039] Please refer to Figure 1 , Figure 2 and Figure 3An embodiment of the present application provides an electric tool, which comprises a housing 1, a motor 2 and a controller 3. The housing 1 is provided with a mounting cavity 12. The motor 2 is arranged in the mounting cavity 12, and an output end of the motor 2 is connected to a working unit 21. The controller 3 is arranged in the mounting cavity 12 and electrically connected to the motor 2, and the controller 3 is provided with a circuit board 32. The electric tool further comprises a light source 4 and a light guide structure 5. The light source 4 is electrically connected to the circuit board 32. The light guide structure 5 is connected to the housing 1, and the light guide structure 5 is provided with a light channel, the light channel is provided with an inlet 6 and an outlet 7, and a reflecting surface 513 is arranged in the light channel. The inlet 6 is located on one side of the housing 1 and close to the light source 4, and the outlet 7 is located on the other side of the housing 1. The light source 4 is arranged to emit light along a first direction into the inlet 6, the reflecting surface 513 reflects the light and makes the light exit from the outlet 7 along a second direction, and the first direction and the second direction are arranged at an angle.

[0040] Specifically, the electric tool is an electric tool for water and electricity processing, which can be a slotter, a cutting machine, an angle grinder or the like, and preferably is a slotter. The housing 1 of the electric tool can have a handle which can be held by a user to control the direction of the electric tool. The mounting cavity 12 in the housing 1 is used to mount elements such as the motor 2 and the controller 3. The output end of the motor 2 extends out of the housing 1 and is connected to the working unit 21. It can be understood that different electric tools have different working units 21, and the tool unit can be a saw blade, a grinding wheel or the like. The controller 3 comprises a circuit board 32 which can control the operation or stop of the motor 2. The controller 3 is also connected to a battery or a cable to supply power to the motor 2.

[0041] Further, the circuit board 32 is further provided with the light source 4, and the controller 3 can control whether the light source 4 is started. The light guide structure 5 is arranged on the housing 1, and the light guide structure 5 is provided with a light channel. The inlet 6 of the light channel extends to the light source 4, and the outlet 7 of the light channel extends out of the housing 1. It can be understood that the light guide structure 5 can be a pipeline structure, and the pipeline is the light channel. The pipeline wall can reflect light. The light guide structure 5 can also be a transparent rod structure, and light can penetrate the light guide structure 5 and propagate out of the housing 1.

[0042] Further, the reflecting surface 513 is located in the light channel, and the reflecting surface 513 can change the direction of the light in the light channel, for example, the light enters the light channel from the first direction through the entrance 6, and after passing through the reflecting surface 513, the light exits the light channel from the second direction through the exit 7. The reflecting surface 513 can be formed by a mirror or a mirror coating, and the included angle between the first direction and the second direction can be set according to the position of the reflecting surface 513. The position of the reflecting surface 513 is set according to different needs to change the direction of the light exiting the light channel. It can be understood that the internal structure of the power tool is compact, and the circuit board 32 of the controller 3 is usually arranged with the circuit on one side of the circuit board 32 towards the mounting cavity 12 for various purposes, such as protecting the circuit structure, facilitating installation, and utilizing limited space. The light source 4 arranged on the circuit board 32 makes the light towards the mounting cavity 12, and the light can be guided out of the shell 1 through the light guide structure 5. Moreover, there is no wire connection between the light guide structure 5 and the light source 4, so the installation or disassembly is convenient, the display effect of the light source 4 is stable, and the light source 4 is not easy to be damaged.

[0043] Through the embodiment, when the power tool is running or the motor is abnormal, the controller 3 can obtain the abnormal signal and control the light source 4 to emit light. The light guide structure 5 guides the light out of the shell 1 to prompt the user, so that the user can stop running the power tool to avoid safety accidents or other accidents.

[0044] Please refer to Figure 1 , Figure 2 and Figure 4 , the utility model provides an embodiment, the light guide structure 5 includes display part 52 and light guide part 51. The display part 52 is arranged in the shell 1, and the exit 7 is arranged in the display part 52. The light guide part 51 is connected to the display part 52, and the entrance 6 is arranged at one end of the light guide part 51 away from the display part 52. The reflecting surface 513 is located in the light guide part 51, and the reflecting surface 513 is adjacent to the light source 4.

[0045] Specifically, the display part 52 is a block structure, the light guide part 51 is a rod structure, the light guide part 51 is connected to one side of the display part 52 to form a structure similar to "T", and the light channel passes through the display part 52 and the light guide part 51. The mounting hole 112 is arranged on the shell 1, and the display part 52 is connected to the mounting hole 112 to make the light channel extend out of the mounting cavity 12 through the shell 1. The shell 1 is a certain distance away from the light source 4, one end of the light guide part 51 is connected to the display part 52, and the other end extends to the light source 4.

[0046] Optionally, the connection between the display part 52 and the shell 1 can be a snap connection, or can be a glue bonding or the like.

[0047] Through the embodiment, the light guide structure 5 is divided into a display part 52 and a light guide part 51. It can be understood that the housing 1 of the electric tool can be divided into two housing parts 11, the display part 52 is first installed at the mounting hole 112 of one of the housing parts 11, the controller 3 is installed on one of the housing parts 11, and then the two housing parts 11 are combined into one housing 1, so that the light guide part 51 is just adjacent to the light source 4, and the inlet 6 is arranged towards the light source 4.

[0048] Please refer to Figure 1 、 Figure 2 and Figure 5 , the utility model provides an embodiment, the housing 1 is equipped with mounting hole 112, the display part 52 includes mounting block 521 and display block 522. The mounting block 521 is connected to the housing 1 and located in the mounting cavity 12. One end of the display block 522 is connected to the mounting block 521 and is arranged through the mounting hole 112, and the other end extends to the side of the housing 1 away from the mounting cavity 12, and the outlet 7 is arranged at the end of the display block 522 away from the mounting block 521.

[0049] Specifically, the outer diameter of the display block 522 is less than or equal to the hole diameter of the mounting hole 112, so that the display block 522 can pass through the mounting hole 112. The outer diameter of the mounting block 521 is greater than the hole diameter of the mounting hole 112, so that the mounting block 521 can abut against the inner wall of the housing 1. The mounting block 521 can be connected to the housing 1 by clamping, clamping groove and the like, or can be adhered to the housing 1 by glue and the like.

[0050] Optionally, a waterproof ring can be arranged on the mounting block 521, so that the waterproof ring is clamped between the mounting block 521 and the inner wall of the housing 1 to prevent water vapor from entering the mounting cavity 12 of the housing 1 through the mounting hole 112.

[0051] Through the embodiment, the user passes the display block 522 through the mounting hole 112 and installs the mounting block 521 on the inner wall of the housing 1 to complete the installation of the light guide structure 5, and then the two housing parts 11 are combined into one housing 1, so that the light guide part 51 is just adjacent to the light source 4, and the inlet 6 is arranged towards the light source 4.

[0052] Reference Figure 5 , the utility model provides an embodiment, the outlet 7 is equipped with convex lens. The outlet 7 is provided with a translucent coating.

[0053] Specifically, the outlet 7 of the light guide channel is provided with a convex lens, or the outlet 7 of the light guide structure 5 is a circular arc surface, which can disperse the light in the light guide channel. Understandably, the outlet 7 of the light guide channel and the direction of the light exiting the light guide channel are constant, and the user holds the electric tool in different postures, so that the user's line of sight cannot necessarily receive most of the light. Further, the light exiting the outlet 7 is dispersed, so that the user can receive the light of the light source 4 no matter what posture the electric tool is moved to.

[0054] Further, the outlet 7 of the light guide channel is provided with a translucent coating, which has a warning color such as red, orange, yellow, or other colors that are obviously different from the garden environment. The light is more conspicuous and easier to attract attention.

[0055] Optionally, the translucent coating can be a colored transparent tape, or can be formed by a certain transparent paint, or can be dyed at the outlet 7 of the light guide structure 5.

[0056] Through the embodiment, the user can clearly see the light emitted from the light guide structure 5 when using the electric tool, regardless of the posture of the electric tool. When the electric tool malfunctions, the prompt of the light guide structure 5 is not obvious, so that the user ignores the prompt and causes a safety hazard.

[0057] Please refer to Figure 3 and Figure 4 The utility model provides an embodiment, controller 3 still includes the packing box 31, packing box 31 is located in mounting cavity 12, circuit board 32 is located in packing box 31, packing box 31 with shell 1 is clamped in the both sides of mounting block 521.

[0058] Specifically, the packing box 31 is a box-shaped structure with an opening, the circuit board 32 is installed in the packing box 31, the shell wall of the shell 1 is provided with a slot 111 capable of being nested, and the packing box 31 can be installed on the shell 1 through the slot 111. When the light source 4 is connected to the circuit board 32, the position of the light source 4 exceeds the edge of the packing box 31, so that the light of the light source 4 is not blocked by the packing box 31. Understandably, there is a certain gap between the packing box and the shell 1, which can clamp the mounting block 521 of the light guide structure 5. The packing box 31 is installed in the slot 111 of a shell part 11, the mounting block 521 of the light guide structure 5 is connected to the mounting hole 112 of another shell part 11, and when the two shell parts 11 are combined to form the shell 1, the mounting block 521 of the packing box 31 abuts against the inner wall of the shell 1, that is, the packing box 31 and the shell 1 clamp the mounting block 521 of the light guide structure 5.

[0059] Through the embodiment, the packaging box 31 can protect the circuit structure of the circuit board 32, and also makes the sheet structure such as the circuit board 32 easy to be installed in the irregular installation cavity 12 of the shell 1, and also facilitates fixing the light guide structure 5 in cooperation with the shell 1.

[0060] With reference to Figure 4 and Figure 5 , the utility model provides an embodiment, the mounting block 521 is equipped with the locating column 5211, the locating column 5211 abuts on the packaging box 31.

[0061] Specifically, the locating column 5211 is a columnar structure, and extends along the direction in which the light guide part 51 extends on the mounting block 521. Optionally, the locating column 5211 is made of elastic material, and the elastic pressure of the locating column 5211 makes the mounting block 521 tightly abut on the inner wall of the shell 1.

[0062] Optionally, the packaging box 31 has a positioning hole, and the locating column 5211 and the positioning hole cooperate to guide the direction of the light guide part 51.

[0063] Through the embodiment, the locating column 5211 can reduce the volume of the mounting block 521, so that the light guide structure 5 can still be clamped when the gap between the shell 1 and the packaging box 31 is relatively large.

[0064] Please refer to Figure 5 , the utility model provides an embodiment, the light guide part 51 is columnar structure, the light guide part 51 is equipped with the first side 511 and the second side 512 of interval arrangement, the first side 511 is adjacent the light source 4 is arranged, the import 6 end is located at the first side 511, the second side 512 is equipped with the reflection surface 513.

[0065] Specifically, the light guide part 51 is a columnar structure with a quadrilateral cross section, wherein two non-adjacent sides are the first side 511 and the second side 512, wherein the first side 511 is parallel to the plane of the circuit board 32, and the end of the first side 511 away from the display part 52 is the import 6, and the second side 512 away from the display part 52 is provided with a chamfer, and the chamfer is provided with a mirror or a mirror coating to form the reflection surface 513. That is, the chamfer and the import 6 are located on two sides of the light guide part 51, and both are away from the display part 52.

[0066] Through the embodiment, the light of the light source 4 is irradiated to the import 6 located on the first side 511 from the first direction, and then irradiated to the reflection surface 513 from the import 6, and the reflection surface 513 reflects the light to the second direction, and the light propagates from the second direction in turn through the light guide part 51, the mounting block 521 and the display block 522, and finally diverges from the outlet 7 of the display block 522.

[0067] Please refer to Figure 4 andFigure 5 In an embodiment, the light source 4 is an LED lamp.

[0068] Specifically, the circuit board 32 is connected with an LED lamp, and the light source 4 can be one LED lamp or a plurality of LED lamps.

[0069] Optionally, the circuit board 32 is connected with a plurality of LED lamps, the shell 1 is provided with a plurality of mounting holes 112, and each mounting hole 112 is provided with a light guide structure 5, but the display effects of the light guide structures 5 of different mounting holes 112 are different, for example, the displayed colors are different. The plurality of light guide structures 5 correspond to the plurality of LED lamps one by one. Different light guide structures 5 in the plurality of light guide structures 5 respectively prompt the user about different conditions of the motor 2.

[0070] Please refer to Figure 4 and Figure 5 In an embodiment, the inlet 6 is provided with a concave lens.

[0071] Specifically, the inlet 6 is provided with a concave lens or forms a concave mirror, and the shape of the concave lens or the concave mirror matches the outer contour of the LED lamp.

[0072] Through the embodiment, the concave lens or the concave mirror can adapt to the outer contour of the LED lamp, facilitate the LED lamp to penetrate into the light guide channel more deeply, and can collect more light. Moreover, if the light source 4 of the LED lamp is small, the concave lens or the concave mirror can disperse the light, and the dispersed light can be more uniformly scattered in the light guide channel, so that the light is more uniformly scattered from the outlet 7 rather than concentrated. Understandably, if the direction of the line of sight is inconsistent with the direction of the light when the concentrated light comes out of the outlet 7, the light guide structure 5 is not obvious, which is not conducive to the prompt effect of the light guide structure 5.

[0073] Please refer to Figure 4 and Figure 5 In an embodiment, the light guide structure 5 is made of glass or organic glass.

[0074] Specifically, the light guide structure 5 is made of a whole piece of glass or organic glass.

[0075] Through the embodiment, the light guide structure 5 is a whole part, which is convenient for the production and processing of the light guide structure 5, and also facilitates the installation or disassembly of the light guide structure 5.

[0076] The above only describes the preferred embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by the utility model specification and the drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. An electric tool, comprising: a housing provided with a mounting cavity; a motor arranged in the mounting cavity, an output end of the motor being connected to a working unit; a controller arranged in the mounting cavity and electrically connected to the motor, the controller being provided with a circuit board, characterized in that the electric tool further comprises: a light source electrically connected to the circuit board; a light guide structure connected to the housing, the light guide structure being provided with a light channel, the light channel being provided with an inlet and an outlet, the light channel being provided with a reflecting surface, the inlet being located on one side of the housing and being close to the light source, the outlet being located on the other side of the housing; wherein the light of the light source enters the inlet along a first direction, the reflecting surface reflects the light and makes the light exit from the outlet along a second direction, the first direction and the second direction being arranged at an angle.

2. The power tool of claim 1, wherein, The light guide structure comprises: a display part, the display part being arranged in the housing, the outlet being arranged in the display part; and a light guide part, the light guide part being connected to the display part, the inlet being arranged at one end of the light guide part away from the display part, the reflecting surface being arranged in the light guide part and being adjacent to the light source.

3. The power tool of claim 2, wherein, The housing is provided with a mounting hole, the display part comprises: a mounting block, the mounting block being connected to the housing and being arranged in the mounting cavity; and a display block, one end of the display block being connected to the mounting block and being arranged in the mounting hole, the other end of the display block extending to the side of the housing away from the mounting cavity, the outlet being arranged at one end of the display block away from the mounting block.

4. The power tool of claim 3, wherein, The outlet is provided with a convex lens. And / or, the outlet is provided with a translucent coating.

5. The power tool of claim 3, wherein, The controller further comprises a packaging box, the packaging box being arranged in the mounting cavity, the circuit board being arranged in the packaging box, the packaging box and the housing being arranged on both sides of the mounting block.

6. The power tool of claim 5, wherein, The mounting block is provided with a positioning column, the positioning column abutting against the packaging box.

7. The power tool of claim 2, wherein, The light guide part is a columnar structure, the light guide part being provided with a first side and a second side arranged at intervals, the first side being adjacent to the light source, the inlet being arranged at the first side, the second side being provided with the reflecting surface.

8. The power tool of claim 7, wherein, The light source is an LED lamp.

9. The power tool of claim 7, wherein, The inlet is provided with a concave lens.

10. The power tool of claim 1, wherein, The light guide structure is made of glass or organic glass.

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