CN220030125U

CN220030125U - Electric tool

Info

Publication number: CN220030125U
Application number: CN202321042854.7U
Authority: CN
Inventors: 黄振辉; 黄始文; 胡远记
Original assignee: Ningbo Tuobang Intelligent Control Co ltd
Current assignee: Ningbo Tuobang Intelligent Control Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-11-17
Anticipated expiration: 2033-04-27

Abstract

The utility model provides an electric tool, which comprises a shell and a power assembly, wherein the power assembly is arranged in the shell, a power output end of the power assembly is positioned at the front end of the shell, and the electric tool further comprises: the illumination assembly is detachably arranged at the front end of the shell and surrounds the power output end, the illumination assembly comprises a light shield, a COB lamp panel and a lamp shade, the light shield and the shell are detachably arranged, the lamp shade is embedded in the light shield, the COB lamp panel is contained in a space surrounded by the light shield and the transparent lamp shade, and the shape of the light shield, the shape of the COB lamp panel and the shape of the lamp shade are matched with the shape of the front end. According to the utility model, the illumination assembly is arranged around the power output end based on the structural characteristics of the COB lamp panel, and the COB lamp panel can emit complete ring-shaped light when emitting light, so that the operation area around the power output end can be illuminated, the construction is more convenient, and meanwhile, the light shield is detachably arranged relative to the shell, and is also easy to detach, maintain or replace, so that the normal use of the electric tool is ensured.

Description

Electric tool

Technical Field

The utility model belongs to the technical field of electric tools, and particularly relates to an electric tool.

Background

The conventional handheld electric tool is only provided with a plug-in LED or a common patch LED below the rotary head, due to the position limitation of the light source, the light emitted by the light source can only illuminate a small-area working area, the light cannot be uniformly distributed, a large shadow part exists in the working area, when working is started in a dark environment, the light can only illuminate below a working point and cannot cover a larger-area working area, a constructor is difficult to accurately judge the construction degree, the working is inconvenient, and the construction is affected.

And the construction environment is often complicated and severe, and the light source on the traditional electric tool is easy to damage, and then the light source is difficult to repair or replace in time due to inconvenient disassembly, and the construction is also easy to influence.

Disclosure of Invention

The embodiment of the utility model provides an electric tool, which aims to solve the problems that the traditional electric tool has small light source coverage area, construction is affected, the light source on the traditional electric tool is easy to damage, and the traditional electric tool is difficult to repair or replace in time due to inconvenient disassembly, and the construction is also affected easily.

The embodiment of the utility model is realized in that the electric tool comprises a shell and a power assembly, wherein the power assembly is arranged in the shell, a power output end of the power assembly is positioned at the front end of the shell, and the electric tool further comprises:

the illumination assembly is detachably arranged at the front end of the shell and surrounds the power output end, the illumination assembly comprises a light shield, a COB lamp panel and a lamp shade, the light shield and the shell are detachably arranged, the lamp shade is embedded in the light shield, the COB lamp panel is accommodated in a space surrounded by the light shield and the transparent lamp shade, and the shape of the light shield, the COB lamp panel and the shape of the lamp shade are matched with the shape of the front end.

Still further, the lighting assembly further comprises a sealing colloid, wherein the sealing colloid is arranged in the light shield and seals a space surrounded by the light shield and the lampshade, and the COB lamp panel is attached to the sealing colloid.

Further, the lampshade comprises a first lampshade body and a butt joint part connected with the first lampshade body, the butt joint part is formed by extending the first lampshade body inwards and downwards, the butt joint part surrounds the front end, and the shape of the butt joint part is matched with that of the front end;

the light shield comprises a second shield body and a butt joint hole arranged on the second shield body, the first shield body is arranged on the second shield body in a covering mode, the butt joint portion corresponds to the butt joint hole, and the front end penetrates through the butt joint hole and is surrounded by the butt joint portion.

Further, the sealing colloid seals the corresponding position of the butt joint part and the butt joint hole.

Furthermore, a plurality of buckles are arranged on one side, facing the shell, of the light shield, a plurality of clamping holes are formed in the shell corresponding to the plurality of buckles, and the plurality of buckles and the plurality of clamping holes are detachably arranged; or (b)

The light shield is towards be equipped with a plurality of card holes on one side of casing, correspond a plurality of on the casing the card hole is equipped with a plurality of buckles, a plurality of the card hole with a plurality of the buckle can dismantle the setting.

Further, a first thread is arranged on the surface of the abutting part facing the front end, a second thread is arranged on the surface of the front end, and the first thread is matched with the second thread.

Further, a plurality of elastic protrusions are arranged on the surface of the abutting part facing the front end, a plurality of grooves are arranged on the surface of the front end corresponding to the plurality of elastic protrusions, and the plurality of elastic protrusions are detachably arranged with the plurality of grooves; or (b)

The surface of the butt joint part facing the front end is provided with a plurality of grooves, the surface of the front end is provided with a plurality of elastic bulges corresponding to the grooves, and the grooves and the elastic bulges can be detachably arranged.

Still further, the COB lamp panel includes:

the shape of the PCB is matched with the shape of the front end;

the LED lamp beads are arranged on the PCB in parallel, and are uniformly distributed on the PCB; and

and the fluorescent colloid covers the LED lamp beads.

Still further, the housing includes:

a grab handle; and

the main body is arranged at the top of the grab handle, the power assembly is arranged on the main body, and the front end of the power assembly is positioned at one end of the main body away from the grab handle.

Still further, the power tool further includes:

the controller is arranged in the main body or the grab handle and is electrically connected with the power assembly;

the power supply component is arranged on or in the grab handle and is electrically connected with the controller and the power component; and

the trigger button is arranged at the grab handle and is electrically connected with the controller.

The utility model has the beneficial effects that:

the electric tool provided by the utility model has the advantages that based on the structural characteristics of the COB lamp panel, the illumination assembly can be matched with the shape of the front end and encircle the power output end, the luminous surface of the COB lamp panel irradiates towards the operation area, and the luminous surface can emit complete ring-shaped light when the COB lamp panel emits light, so that the operation area around the power output end can be illuminated, the defects of insufficient brightness, large shadow of the luminous surface and the like in the prior art are avoided, the brightness of the operation area in the dark area is ensured, and the construction is more convenient; meanwhile, the lampshade and the light shield can protect the COB lamp panel from being influenced by the complex and severe construction environment outside so as to prolong the service life, and the light shield can be arranged in a detachable manner relative to the shell, so that the COB lamp panel is easy to detach, maintain or replace even if the lighting assembly is damaged during use, and the normal use of the electric tool is ensured.

Drawings

FIG. 1 is a schematic perspective view of a power tool according to an embodiment of the present utility model;

FIG. 2 is an exploded perspective view of a power tool according to an embodiment of the present utility model;

FIG. 3 is a schematic perspective view of a mask according to an embodiment of the present utility model;

fig. 4 is a schematic perspective view of a lampshade according to an embodiment of the present utility model;

description of main reference numerals:

10. an electric tool; 1. a housing; 11. a main body; 111. a clamping hole; 12. a grab handle; 13. triggering a key; 14. a boss; 21. a power output end; 3. a lighting assembly; 31. a light shield; 311. a second cover; 3111. a buckle; 312. a butt joint hole; 32. COB lamp panel; 321. a PCB board; 322. LED lamp beads; 323. a fluorescent colloid; 33. a lamp shade; 331. a first cover; 332. a butt joint part; 3321. an annular groove; 34. and (5) sealing the colloid.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

According to the utility model, the illumination assembly is matched with the shape of the front end, the COB lamp panel surrounds the power output end, and can emit complete ring-shaped light when the COB lamp panel emits light, so that the operation area around the power output end can be illuminated, meanwhile, the COB lamp panel can be protected from the influence of external construction environment by the lamp shade and the light shield, and the light shield is detachably arranged relative to the shell, so that the COB lamp panel is easy to detach, repair or replace.

Example 1

Referring to fig. 1 and 2, an electric tool 10 according to an embodiment of the utility model includes a housing 1 and a power assembly, the power assembly is disposed in the housing 1, a power output end 21 of the power assembly is located at a front end of the housing 1, and the electric tool 10 further includes:

the lighting assembly 3, lighting assembly 3 detachably locates the front end of casing 1 and encircles power take off end 21, and lighting assembly 3 includes lens hood 31, COB lamp plate 32 and lamp shade 33, and lens hood 31 and casing 1 can dismantle the setting, and lamp shade 33 inlays in lens hood 31, and COB lamp plate 32 holding is in the space that lens hood 31 and transparent lamp shade 33 enclose, and the shape of lens hood 31, COB lamp plate 32 and lamp shade 33 and the shape looks adaptation of front end.

In this embodiment, the electric tool 10 includes a housing 1 and a power unit (not shown), the housing 1 includes a main body 11 and a handle 12, the main body 11 is disposed at the top of the handle 12, the power unit is disposed in the main body 11, the main body 11 is connected with the handle 12 to form a T shape, the front end is located at one end of the main body 11 far away from the handle 12, i.e. the front end of the housing 1 is the front end of the main body 11, specifically, the power output end 21 of the power unit housing 1 is located at the front end and protrudes out of the front end surface.

In this embodiment, the front end is further provided with a lighting assembly 3, and the lighting assembly 3 includes a light shield 31, a COB light panel 32 (COB is called chip on Board, meaning chip on Board) and a lampshade 33, where the light shield 31, the COB light panel 32 and the lampshade 33 are all in a ring shape, so as to avoid the power output end 21, and the lighting assembly 3 is disposed on the front end surface around the power output end 21.

Specifically, the front end face is substantially circular, and is in a shape matching the front end, the light shield 31, the COB light panel 32 and the lamp shade 33 are all in a circular ring shape, the light emitting surface of the COB light panel 32 irradiates forward, and the emitted light presents a ring-shaped light emitting area in front of the power output end 21, which is the same as the working direction of the power output end 21 (i.e. the drill bit) of the electric tool.

Compared with the light source conventionally arranged below the power output end 21, the illumination component 3 of the embodiment has a wide illumination range, and the light emitting surface of the COB lamp panel 32 has the same orientation with the front end, so that the light emitting rays just illuminate the working area of the front end, no shadow exists in the working area, the brightness of the working area is ensured when the working is performed in the dark area, and the construction is more convenient.

The lamp shade 33 is embedded into the light shield 31, and the COB lamp panel 32 is arranged in an inner space enclosed between the lamp shade 33 and the light shield 31, wherein the light emitting surface of the COB lamp panel 32 is arranged towards the lamp shade 33, and the outer side of the bottom of the light shield 31 is detachably connected with the shell 1, so that the whole lighting assembly 3 can be quickly assembled and disassembled at the front end of the shell 1. The COB lamp panel 32 is wrapped inside by the light shield 31 and the lamp shade 33, so that dust and water can be prevented, and the COB lamp panel 32 can be prevented from being broken when the electric tool 10 falls.

In addition, since the electric tool 10 may be applied in various outdoor environments, the color rendering index and the color temperature of the COB light panel 32 are actually adjusted and designed based on different application environments, and the user can adjust the color rendering index and the color temperature of the COB light panel 32 to meet the requirements of different environments on light, so that the problem that visual fatigue is easily caused when people work in dark areas is solved. Meanwhile, the current flowing through the light emitting elements on the COB lamp panel 32 is controlled, and the light emitting brightness of the light emitting elements on the COB lamp panel 32 can be adjusted.

More specifically, the light shield 31 and the lamp shade 33 may be adhered by glue, screwed, bolted or clamped, and preferably, in this embodiment, the glue is used to make the appearance of the lighting assembly 3 more attractive.

More specifically, the light shield 31 is a light-tight housing, and the lamp housing 33 is a light-permeable housing. More specifically, the lampshade 33 in this embodiment adopts a milky transparent shell, so that the light emission is more uniform, and in order to reduce the light emission, the light shield 31 adopts a black light shield shell, that is, the combination of the light shield 31 and the lampshade 33 is to cover a black light shield shell outside the transparent shell, so that the light rays are less emitted through the shell, and the illumination is more concentrated.

According to the electric tool 10 disclosed by the utility model, based on the structural characteristics of the COB lamp panel 32, the illumination component 3 can be matched with the shape of the front end, and surrounds the power output end 21, the luminous surface of the COB lamp panel 32 can irradiate towards the operation area, and can emit complete ring-shaped light when the COB lamp panel emits light, so that the operation area around the power output end 21 can be illuminated, the defects of insufficient brightness, large shadow of the luminous surface and the like in the prior art are avoided, the brightness of the operation area during operation in a dark area is ensured, and the construction is more convenient; meanwhile, the lampshade 33 and the light shield 31 can protect the COB lamp panel 32 from being influenced by the complex and severe construction environment outside to prolong the service life, and the light shield 31 can be detachably arranged relative to the shell 1, so that the electric tool 10 can be easily detached for maintenance or replacement even if the lighting assembly 3 is damaged during use, and the normal use of the electric tool 10 is ensured.

In some embodiments, the electric tool 10 further includes a controller (not shown), a power component (not shown), and a trigger button 13, wherein the controller is disposed in the main body 11 or the handle 12 and is electrically connected to the power component, the power component is disposed on the handle 12 or in the handle 12 and is electrically connected to the controller and the power component, and the trigger button 13 is disposed at the handle 12 and is electrically connected to the controller.

In this embodiment, the controller is disposed in the main body 11, the power supply assembly is disposed in the grip 12, and the trigger button 13 is disposed at a connection portion between the grip 12 and the main body 11, so that the user can grasp the grip 12 of the electric tool 10 to operate the trigger button 13.

Specifically, the power supply component can be a storage battery or a commercial power module, is electrically connected with the controller and the power component respectively, supplies power to the controller and the power component, is electrically connected with the power component and is used for controlling the motion of the power component through the controller, and the trigger button 13 is electrically connected with the controller and is used for controlling the current on-off of the controller through the trigger button 13 so as to control the motion of the power component.

In some embodiments, the power assembly is also electrically connected to the illumination assembly 3 such that the illumination assembly 3 is energized to illuminate the work area when illumination of the power tool 10 is desired.

More specifically, in the present embodiment, the COB lamp panel 32 is led out into the housing 1 by welding the lead wire in advance, and is connected to the power supply assembly and the trigger button 13 by a wire, for example, pressing the trigger button 13 turns on the lighting assembly 3 and supplies power to the power assembly, thereby rotating the power assembly and generating power.

In other embodiments, if the trigger button 13 is only partially depressed, the illumination assembly 3 will be on, but the power assembly will not rotate, thereby allowing the user to illuminate the working space of the power tool 10 in advance of operating the power tool 10 to ensure safety and accuracy of operation.

In other embodiments, the controller may cause the lighting assembly 3 to flash various patterns, or emit light of a particular color, or both, to indicate to the user certain events, such as completion of a fastening operation, malfunction/error, maintenance reminder, or other operating conditions of the power tool 10.

Example two

Referring to fig. 2, the lighting assembly 3 of the present embodiment further includes a sealing compound 34, the sealing compound 34 is disposed in the light-shielding cover 31 and seals a space surrounded by the light-shielding cover 31 and the lamp shade 33, and the COB lamp panel 32 is attached to the sealing compound 34.

Specifically, to match the shape of the light-shielding cover 31, the shape of the sealing colloid 34 after solidification is also substantially annular, and the sealing colloid 34 is used for sealing the gap between the light-shielding cover 31 and the lampshade 33, so as to improve the sealing effect.

The light emitting surface of the COB panel 32 is referred to as the front surface of the COB panel 32, and the other surface is referred to as the back surface of the COB panel 32. Illustratively, the back of the COB light panel 32 and the sealing colloid 34 may be adhered and fixed, and then the COB light panel 32 and the sealing colloid 34 are installed in the space surrounded by the light-shielding cover 31 and the lampshade 33, so that the movement of the COB light panel 32 may be further limited, and the light-emitting element of the COB light panel 32 is prevented from being swayed and broken in the space when the electric tool 10 falls.

Or, after the wire is welded on the COB lamp panel 32 and is arranged between the light shield 31 and the lamp shade 33, a black pouring sealant is poured between the COB lamp panel 32 and the lamp shade 33, so that the sealing colloid 34 is formed to adhere and fix the COB lamp panel 32 and seal the COB lamp panel 32, and a better waterproof and dustproof effect is achieved.

Example III

Referring to fig. 3 and 4, the lampshade 33 of the present embodiment includes a first cover 331 and a butt joint portion 332 connected to the first cover 331, the butt joint portion 332 is formed by extending the first cover 331 inward and downward, the butt joint portion 332 surrounds the front end, and the shape of the butt joint portion 332 is adapted to the shape of the front end;

the light shield 31 includes a second cover 311 and a docking hole 312 provided on the second cover 311, the second cover 311 is covered with a first cover 331, the docking portion 332 corresponds to the docking hole 312, and the front end passes through the docking hole 312 and is surrounded by the docking portion 332.

Specifically, the front end has a boss 14 provided on a surface thereof, and a power output end 21 protruding from the surface of the boss 14, and the output lighting assembly 3 is provided around the boss 14 and detachably connected to the front end.

More specifically, a space for installing the COB lamp panel 32 and the sealing colloid 34 is formed between the abutting portion 332 and the first cover 331, the second cover 311 is covered outside the first cover 331, the boss 14 passes through the abutting portion 332 from the abutting hole 312 to be surrounded, and the bottom end surface of the abutting portion 332 abuts against the inner side of the bottom wall of the second cover 311, so that the light shield 31 and the light shield 33 are assembled. Thus, the first cover 331 and the second cover 311 are tightly combined, and the sealing effect is better.

More specifically, the inner diameter of the abutting portion 332 is greater than or equal to the diameter of the abutting hole 312, so that the bottom end surface of the abutting portion 332 can abut against the peripheral edge of the abutting hole 312.

The boss 14 is substantially cylindrical in shape, and the abutting portion 332 is covered outside the boss 14, so that the abutting portion 332 is also substantially cylindrical, and the abutting hole 312 is also substantially circular. Of course, the shape of the boss 14 may also be substantially prismatic, without limitation. Thus, the shapes of the abutting portion 332 and the abutting hole 312 are matched with the shape of the boss 14, so that the assembled light shield 31 and the assembled lampshade 33 can be directly sleeved at the front end, and the operation is convenient.

Example IV

Referring to fig. 2, the sealant 34 of the present embodiment seals the corresponding position between the abutting portion 332 and the abutting hole 312.

Since the abutting portion 332 is substantially cylindrical and the abutting hole 312 is substantially circular, the sealing compound 34 may be an annular sealing ring. In order to seal the space formed between the second cover 311 and the first cover 331, the sealing compound 34 is mounted between the abutting portion 332 and the peripheral edge of the abutting hole 312, so as to further enhance the sealing effect and protect the COB lamp panel 32.

Specifically, referring to fig. 4, an annular groove 3321 is formed on the periphery of the end of the abutting portion 332 facing the front end, and a step portion is formed on the annular groove 3321 to cover the COB lamp panel 32 and the sealing compound 34. One surface of the sealing colloid 34 is attached with the COB lamp panel 32, the sealing colloid 34 and the COB lamp panel 32 are sleeved on the annular groove 3321 of the butt joint part 332, when the first cover body 331 is covered in the second cover body 311, the other surface of the sealing colloid 34 is abutted to the bottom of the second cover body 311, so that the sealing colloid 34 and the COB lamp panel 32 are limited between the annular groove 3321 and the bottom of the second cover body 311, the installation is more stable, the sealing effect is better, and the COB lamp panel 32 is not easy to move and break when the electric tool 10 falls.

Example five

Referring to fig. 2 and 3, a plurality of fasteners 3111 are disposed on a side of the light shield 31 facing the housing 1, a plurality of fastening holes 111 are disposed on the housing 1 corresponding to the fasteners 3111, and the fasteners 3111 and the fastening holes 111 are detachably disposed; or the side of the light shield 31 facing the shell 1 is provided with a plurality of clamping holes, the shell 1 is provided with a plurality of buckles corresponding to the plurality of clamping holes, and the plurality of clamping holes and the plurality of buckles are detachably arranged.

In this embodiment, the plurality of fasteners 3111 are disposed at the bottom of the light shielding cover 31, the fasteners 3111 are uniformly distributed around the central axis of the light shielding cover 31, the plurality of fastening holes 111 are located at the front end of the housing 1, specifically, may be disposed at the peripheral edge of the boss 14, the positions of the fasteners 3111 correspond to the positions of the fastening holes 111, and when the fasteners 3111 are fastened into the fastening holes 111, the fasteners 3111 abut against the peripheral edge of the inner side of the fastening holes 111 to achieve fastening. In this way, the light shield 31 is detachably mounted on the front end of the electric tool 10 in a clamping manner, so that the installation is convenient and quick, and a new light source can be quickly replaced when the light source is damaged.

Specifically, the number of the clips 3111 is at least 2, and the number of the clips 3111 in the present embodiment is 3, so that the surrounding of the light shield 31 is uniformly stressed, and the installation is more stable.

In some embodiments, the clip 3111 may be disposed around the periphery of the light shield 31, and an annular projection is disposed at a position corresponding to the clip 3111 at a front end, and the clip hole 111 is disposed on the annular projection, so that the light shield 31 is limited between the boss 14 and the annular projection when the clip 3111 is clipped into the clip hole 111.

In other embodiments, the bottom of the light shield 31 may be provided with a first buckle, and the housing 1 is provided with a second buckle that is mutually buckled with the first buckle, and the first buckle and the second buckle are buckled to realize the clamping and fixing.

The assembly process of the electric power tool 10 in the present embodiment: the COB lamp panel 32 is attached to one surface of the sealing colloid 34, the COB lamp panel 32 and the sealing colloid 34 are sleeved at the annular groove 3321 of the butt joint part 332, the light-emitting surface of the COB lamp panel 32 faces the direction of the lamp shade 33, the lamp shade 33 is embedded into the light shield 31, connecting leads of the COB lamp panel 32 are led out, finally, the mounted lamp shade 33 and the light shield 31 are directly sleeved around the boss 14, and the bottom of the light shield 31 is clamped with the clamping hole 111 at the front end through the clamp 3111, so that the lighting assembly 3 is rapidly mounted at the front end of the shell 1.

Example six

Referring to fig. 2 and 4, the surface of the abutting portion 332 facing the front end of the present embodiment is provided with a first thread, and the surface of the front end is provided with a second thread, and the first thread and the second thread are engaged.

Specifically, the boss 14 is provided at the front end, the boss 14 is substantially cylindrical, and the abutting portion 332 is substantially cylindrical. The inner wall of the abutting portion 332 is provided with a first thread, the periphery of the boss 14 is provided with a second thread, and the abutting portion 332 is sleeved on the periphery of the boss 14 through threads, so that the lampshade 33 and the boss 14 are stably installed in a threaded mode. Of course, the abutting portion 332 and the boss 14 may be mounted by a snap-fit method, which is not limited herein.

Meanwhile, the lampshade 33 is embedded into the light shield 31, the lampshade 33 can be adhered to the light shield 31 through glue, the light shield 31 is clamped with the clamping hole 111 of the shell 1 through the clamp 3111, and the lampshade 33 and the light shield 31 are respectively connected with the shell 1, so that the lighting assembly 3 and the shell 1 are more firmly installed.

Example seven

Referring to fig. 2 and 3, the surface of the abutting portion 332 facing the front end of the present embodiment is provided with a plurality of elastic protrusions, and the surface of the front end is provided with a plurality of grooves corresponding to the plurality of elastic protrusions, wherein the plurality of elastic protrusions and the plurality of grooves are detachably arranged; or (b)

The surface of the abutting portion 332 facing the front end is provided with a plurality of grooves, the surface of the front end is provided with a plurality of elastic protrusions corresponding to the plurality of grooves, and the plurality of grooves and the plurality of elastic protrusions are detachably arranged.

Specifically, the elastic protrusions are uniformly distributed on the inner wall of the abutting portion 332, the surface of the front end is provided with a plurality of grooves corresponding to the elastic protrusions, and the number of the grooves is the same as the number of the elastic protrusions, so that when the lighting assembly 3 is sleeved on the front end, the elastic protrusions in the lamp shade 33 are embedded in the grooves in a one-to-one correspondence with the grooves, and the detachable fixing of the lighting assembly 3 and the front end is simply and effectively realized.

More specifically, in this embodiment, the number of elastic protrusions and grooves is at least two, and in this embodiment, in order to make the installation of the lampshade 33 and the front end more stable, the number of elastic protrusions and grooves is three, so that the stress around the lampshade is more uniform.

Example eight

Referring to fig. 2, the COB light panel 32 of the present embodiment includes:

the PCB 321, the shape of the PCB 321 is matched with the shape of the front end;

the LED lamp beads 322 are arranged on the PCB 321 in parallel, and the LED lamp beads 322 are uniformly distributed on the PCB 321; and

the fluorescent colloid 323, the fluorescent colloid 323 covers the plurality of LED lamp beads 322.

In the present embodiment, since the front end is provided with the boss 14, the lighting assembly 3 is disposed around the boss 14 at the front end surface, and thus the shape of the PCB 321 is annular, specifically, the shape of the PCB 321 is substantially annular, and the PCB 321 is mounted in the space formed by the lamp housing 33 and the light shield 31.

Specifically, the plurality of LED lamp beads 322 are arranged on the PCB 321 in parallel, so that when any one of the plurality of LED lamp beads 322 burns out, other lamp beads can be normally lightened, the normal use of the electric tool 10 is not affected, the lighting assembly 3 does not need to be replaced immediately, and the replacement can be performed when the electric tool is idle.

In this embodiment, the number of the LED lamp beads 322 is 12, and the 12 lamp beads are uniformly distributed on the PCB 321, so that the light intensity can be enhanced and the COB lamp panel 32 can emit light more uniformly.

In order to meet the requirement of the COB lamp panel 32 to be applied in different environments, the quantity of the LED lamp beads 322 and the current flowing through the LED lamp beads 322 can be adjusted to realize brightness adjustment, the color rendering index and the color temperature can be adjusted by adjusting the proportion of fluorescent powder in the fluorescent colloid 323, and meanwhile, the proper illuminance can be designed according to tools with different working distances.

For example, the color temperature can be adjusted to 7000-8000K, the color rendering index is adjusted to 82Ra, and the illuminance of the center point at 140mm from the light emitting surface is adjusted to 1500Lx according to the tool used, so that the effect of the light emitted by the LED lamp beads 322 after passing through the fluorescent colloid 323 is better, and the use experience of the electric tool 10 is improved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides an electric tool, includes casing and power module, power module locates in the casing, just power module's power take off end is located the front end of casing, its characterized in that, electric tool still includes:

2. The power tool of claim 1, wherein the lighting assembly further comprises a sealing gel disposed in the light shield and sealing a space defined by the light shield and the lamp housing, and the COB light panel is attached to the sealing gel.

3. The power tool according to claim 2, wherein the lamp housing includes a first housing body and a butt-joint portion connected to the first housing body, the butt-joint portion being formed by the first housing body extending inward and downward, the butt-joint portion surrounding the front end, the shape of the butt-joint portion being adapted to the shape of the front end;

4. The power tool of claim 3, wherein the sealing gel seals a correspondence of the docking portion and the docking hole.

5. The power tool according to claim 1, wherein a plurality of buckles are provided on a side of the light shield facing the housing, a plurality of clamping holes are provided on the housing corresponding to the plurality of buckles, and the plurality of buckles are detachably provided with the plurality of clamping holes; or (b)

6. A power tool according to claim 3, wherein the surface of the abutment facing the front end is provided with a first thread and the surface of the front end is provided with a second thread, the first thread being engaged with the second thread.

7. The electric tool according to claim 3, wherein a plurality of elastic protrusions are provided on a surface of the abutting portion facing the front end, a plurality of grooves are provided on a surface of the front end corresponding to the plurality of elastic protrusions, and the plurality of elastic protrusions are detachably provided with the plurality of grooves; or (b)

8. The power tool of claim 1, wherein the COB light panel comprises:

the shape of the PCB is matched with the shape of the front end;

and the fluorescent colloid covers the LED lamp beads.

9. The power tool of claim 1, wherein the housing comprises:

a grab handle; and

10. The power tool of claim 9, further comprising: