CN207518431U - Electric tool - Google Patents
Electric tool Download PDFInfo
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- CN207518431U CN207518431U CN201721590162.0U CN201721590162U CN207518431U CN 207518431 U CN207518431 U CN 207518431U CN 201721590162 U CN201721590162 U CN 201721590162U CN 207518431 U CN207518431 U CN 207518431U
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Abstract
The utility model discloses a kind of electric tool, including：Output, motor and housing, housing include the accommodating chamber for accommodating motor；Motor includes：Armature spindle, rotor core and stator module, armature spindle can be moved by shaft rotation of first axle, and stator module includes coil windings；Stator module by accommodating chamber around first axle to be separated into the first space and second space, and rotor core is arranged in the first space, and coil windings are arranged in second space；First space is including the first end far from output and the second end close to output along first axle direction；Motor further includes：First end cover and second end cover, first end cover is arranged on the first end in the first space to seal the first space at the first end in the first space, and second end cover is arranged on the second end in the first space and with being formed between the structure for forming second space for the first space and second space to be made to form the channel connected.The good dustproof effect of the electric tool.
Description
Technical field
The utility model is related to a kind of electric tools, and in particular to the motor in electric tool.
Background technology
It usually can all include motor in the electric tools such as angle mill, electric drill, reciprocating saw and be connected to the wind of motor shaft
Fan, when fan rotates, can generate and flow through the radiating airflow of motor to radiate to motor.But can have in radiating airflow
There is more dust, if easily influencing the heat dissipation effect of motor when these dusts are entered on motor shaft and rotor core
Fruit.For angle mill, Metal Cutting class tool, dust caused by them is metallic dust, and if metal powder
After dirt is adsorbed to radiating airflow on rotor core, the air gap easily blocked between rotor core and stator core and cause electricity
The failure of machine.
Utility model content
To solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of electronic works of good dustproof effect
Tool.
In order to realize above-mentioned target, the utility model adopts the following technical scheme：
A kind of electric tool, including：Output, motor and housing, motor are used to drive output movement to export power,
Housing includes the accommodating chamber for accommodating motor；Motor includes：Armature spindle, rotor core and stator module, armature spindle can be with
One axis is moved for shaft rotation, and rotor core is formed with armature spindle and rotated synchronously, and stator module includes coil windings；Stator module surrounds
First axle by accommodating chamber to be separated into the first space and second space, and rotor core is arranged in the first space, coil windings
It is arranged in second space；First space is including the first end far from output and close output along first axle direction
Second end；Motor further includes：First end cover and second end cover, first end cover are arranged on the first end in the first space with first
Seal the first space at the first end in space, second end cover be arranged on the second end in the first space and with around forming second space
Structure between be formed with that the first space and second space is made to form the channel connected.
Further, second end cover is rotated with armature spindle.
Further, electric tool further includes：It is fixedly attached to the fan of armature spindle；When fan rotates, the first space
Interior air pressure is less than the air pressure in second space.
Further, channel includes：Most narrow passage portion；Most narrow passage portion has in the flat of the extending direction perpendicular to channel
Minimum area of section in face；First space extends along first axle direction；The most area of section in narrow passage portion is less than first
Maximum area of section of the space in the plane perpendicular to first axle.
Further, stator module further includes：Stator core and insulating frame, stator core include yoke portion and extend from yoke portion
Multiple teeth portion, insulating frame is at least partially disposed between stator core and coil windings；Insulating frame is included close to output
Front end and the rear end far from output, first end cover are connected to the rear end of insulating frame.
Further, insulating frame further includes spaced around portion on multiple circumferencial directions around first axle；
The opening for exposing teeth portion is formed with around portion；Motor further includes the interval for being arranged on adjacent two between portion
Part.
Further, channel is formed between second end cover and the end face of front end.
Further, second end cover is fixedly attached to armature spindle.
Further, section of the channel in a plane by first axle includes the first section line and the second section
Line, the first section line and the second section line closest the distance between 2 points are less than or equal to 5mm.
Further, electric tool further includes：It is fixedly attached to the fan of armature spindle；Wherein, second end cover is fixedly connected
To fan.
Further, electric tool further includes：It is fixedly attached to the fan of armature spindle；Fan, which is adopted, to be formed from aluminium.
Further, electric tool further includes：Wind scooper including the ring part for surrounding first axle；Ring part surround and
Into space and the first space form an opposite second space in the annular space radially sealed perpendicular to first axle；
Channel is formed between second end cover and the end face of ring part.
Further, second end cover is formed with annular groove, and ring part is embedded in annular groove, and the slot of ring part and annular groove
There is gap between wall.
Further, channel includes：First passage portion and second channel portion, first passage portion prolong along first straight line direction
It stretches, second channel portion extends along second straight line direction；Wherein, first straight line direction is intersected with second straight line direction.
Further, there are one magnetic parts for second end cover connection.
Further, first end cover is made of rubber material.
The utility model is beneficial in that：The good dustproof effect of the electric tool.
Description of the drawings
Fig. 1 is the stereogram of the electric tool of the first embodiment of the utility model；
Fig. 2 is the plan view of the electric tool in Fig. 1；
Fig. 3 is the sectional view of the electric tool in Fig. 2；
Fig. 4 is the stereogram of partial shell in Fig. 3, motor, fan and wind scooper；
Fig. 5 is the left view of structure shown in Fig. 4；
Fig. 6 is sectional view of the structure shown in Fig. 5 along line A-A；
Fig. 7 is sectional view of the structure shown in Fig. 5 along line B-B；
Fig. 8 is the explosive view of structure shown in Fig. 5；
Fig. 9 is the stereogram of the first end cover in Fig. 7；
Figure 10 is the stereogram of the stator core and insulating frame in Fig. 7；
Figure 11 is the enlarged drawing of part-structure in Fig. 7；
Figure 12 is the stereogram of the electric tool of the second embodiment of the utility model；
Figure 13 is the sectional view of the electric tool in Figure 12；
Figure 14 is the plan view of partial shell in Figure 12, motor, fan and wind scooper；
Figure 15 is the sectional view of structure shown in Figure 14；
Figure 16 is the enlarged drawing of part-structure in Figure 15；
Figure 17 is that part-structure is further amplified figure in Figure 16.
Specific embodiment
The electric tool 100 of Fig. 1 to first embodiment shown in Fig. 3 is specially angle mill, which includes：Shell
Body 11, motor 20, output 12 and transmission device 13.
It should be understood that the electric tool 100 of the utility model be not limited to angle mill, as long as in fact comprising with this reality
The scope of protection of the utility model is belonged to novel substantially identical motor 20, such as the electric tool 100 can also be electricity
The drill kind tools such as brill, screwdriver can also be that sander, polishing machine etc. are ground class tool, can also be electric circular saw, multi-functional work
The cutting class tool such as tool can also be reciprocal class tool such as reciprocating saw, sweep-saw etc..
As shown in Fig. 3 to Figure 11, in the present embodiment, 11 inside of housing is passed around accommodating chamber 111, motor 20 is formed with
Dynamic device 13 is arranged in accommodating chamber 111.Housing 11 also forms the handle portion 112 for being held for user.For angle mill
Speech, output 12 are specially an output shaft, and output shaft can be moved with exporting axis 101 for shaft rotation.Transmission device 13 is arranged on electricity
With the transmission of the realization power between both between machine 20 and output shaft.In order to the motor 20 in accommodating chamber 111 and
Other parts radiate, and housing 11 is also formed with air flow inlet 113 and air stream outlet 114, and motor 20 is arranged on air flow inlet
Between 113 and air stream outlet 114.
The technical solution of the utility model for convenience of explanation also defines output 12 with respect to the side where motor 20
For front side, motor 20 is rear side with respect to the side where output 12,
Specifically, motor 20 includes：Rotor assembly 30 and stator module 40.Rotor assembly 30 includes：31 He of armature spindle
Rotor core 32, the opposite housing 11 of 31 energy of armature spindle are moved with first axle 102 for shaft rotation, and rotor core 32 is fixedly installed to rotor
Axis 31 with armature spindle 31 to rotate.What the first axle 102 that armature spindle 31 rotates also was rotated with the output 12 in the present embodiment
Output axis 101 is mutually perpendicular to.Fan 33 is also fixedly connected on armature spindle 31, fan 33 is arranged on the front side of motor 20, this
When sample fan 33 rotates, air flow inlet 113 can be produced from and flow into accommodating chamber 111, the heat dissipation then flowed out from air stream outlet 114
Air-flow, radiating airflow additionally flow through motor 20, so as to radiate to motor 20.
Stator module 40 includes：Stator core 41, coil windings 42 and insulating frame 43.Wherein, stator core 41 includes：Yoke
Portion 411 and teeth portion 412, yoke portion 411 are set around first axle 102, and teeth portion 412 is from yoke portion 411 along perpendicular to first axle 102
Extend radially inwardly.Coil windings 42 are wrapped on stator core 41, in order to ensure stator core 41 and coil windings 42 it
Between mutually insulated, insulating frame 43 is at least partially disposed between stator core 41 and coil windings 42.Specifically, insulating frame 43
At least part stator core 41 is covered to ensure mutually insulated between stator core 41 and coil windings 42.
Specifically, teeth portion 412 includes：Protrusion 412a and connecting portion 412b, protrusion 412a surround first at one
It is arranged at intervals successively on the circumferencial direction of axis 102, connecting portion 412b connection protrusion 412a and yoke portion 411.
Insulating frame 43 includes：Suit portion 431 and number and teeth portion 412 around portion 432, suit portion 431 and around portion 432
Number it is identical.Suit portion 431 is used to be set with connecting portion 412b to ensure 42 mutually insulated of teeth portion 412 and coil windings.It surrounds
Portion 432 and protrusion 412a is arranged on same circumferencial direction, and around portion 432, also interval is arranged successively on the circumferencial direction
Row, motor 20 further include multiple spacers 44 set gradually on the circumferencial direction.Spacer 44 is gone back on the circumferencial direction
In adjacent two gaps 433 between portion 432.It is also formed with making opening for the exposing of teeth portion 412 around portion 432
Mouthfuls 434, in this way, protrusion 412a, around portion 432 and spacer portion accommodating chamber 111 is separated into the first sky around first axle 102
Between 34 and second space 45.First space 34 is formed around first axle 102, and the first space 34 is perpendicular to first axle 102
Be radially sealing, rotor core 32 is arranged in the first space 34, and armature spindle 31 passes through the first space 34.Coil windings
42 and stator core 41 be arranged in second space 45.First space 34 extends along 102 direction of first axle, and the first space 34 exists
Include being located at the first end 341 at both ends and second end 342,341 opposite second end 342 of first end along 102 direction of first axle
Far from output 12, second end 342 is with respect to first end 341 closer to output 12.341 opposite second end 342 of first end is close
Air flow inlet 113, second end 342 is with respect to first end 341 close to air stream outlet 114.
Motor 20 further includes the first end cover 46 for the first end 341 for being arranged on the first space 34 and is arranged on the first space 34
Second end 342 second end cover 35.Wherein, first end cover 46 seals the first space at the first end 341 in the first space 34
34, second end cover 35 forms between the structure at the second end 342 in the first space 34 with forming the first space 34 and connects first
Space 34 and the channel 36 of second space 45, the channel 36 are further clearance channel.In this way, stator core 41, insulating frame
43rd, around the first above-mentioned space 34 is formed, which is only capable of through channel 36 for first end cover 46 and second end cover 35
It is connected with the composition of second space 45.So as to when fan 33 rotates, be generated at air flow inlet 113 and flow into dissipating for accommodating chamber 111
Thermal current, when radiating airflow flows through the rear end of motor 20 in second space 45, because the first of the first space 34 at this time
End 341 is sealed by first end cover 46, and therefore, radiating airflow cannot flow into the first sky at the first end 341 in the first space 34
Between 34, and when radiating airflow flows through the front end of motor 20, because setting second at the second end 342 in the first space 34 at this time
End cap 35 so that at second end 342 formed a channel 36, the channel 36 relative to the first space 34 and second space 45 and
Yan Jun is narrow and the first space 34 in air pressure it is lower than the air pressure in second space 45, in this way, radiating airflow is flowing through channel
Vortex will be formed after being entered to after 36 to the first space 34 at the second end 342 of the close channel 36 in the first space 34,
The vortex can throw away the dust in radiating airflow to second space 45, and the vortex also is able to prevent radiating airflow into one
Step is flowed into the first space 34, so as to play extraordinary dust-proof effect.
More specifically, insulating frame 43 is included in along before being parallel on the direction of first axle 102 close output 12
End 432a and the rear end 432b far from output 12, front end 432a are specifically as follows around portion 432 close to output 12
One end, rear end 432b is specially around the other end of the portion 432 far from output 12, in other words, around the front end in portion 432
It is rear end 432b around the rear end in portion 432 for front end 432a.Front end 432a and 342 phase of second end in the first space 34
Corresponding, front end 432a opposed rear ends portion 432b is closer to output 12.Rear end 432b and the first end 341 in the first space 34
Corresponding, rear end 432b opposed front ends portion 432a is further from output 12.In the present embodiment, suit portion 431 and around portion
432 are integrally formed.It will of course be understood that, in other embodiments, insulation sleeve can be by preceding insulation sleeve portion and rear insulation sleeve portion
Two parts are formed, both can be mutually butted or they are linked together by a connecting element.
Housing 11 forms a groove 115 connected with the first space 34, the groove 115 in the rear end close to motor 20
It is interior that the rear bearing 37 for being used to support armature spindle 31 can be set.Housing 11 is also formed with the first annular slot around groove 115
116, first annular slot 116 is centered on first axle 102, and the opening of first annular slot 116 is towards insulating frame 43.First end cover
46 are arranged in first annular slot 116, and first end cover 46 is in close contact with first annular slot 116.First end cover 46 is also formed
Have the second annular groove 461, the rear end 432b of insulating frame 43 be embedded in the second annular groove 461 and with the second annular groove 461
Cell wall is in close contact, so that first end cover 46 is closely wrapped in the rear end 432b of insulating frame 43, so that first
End cap 46 seals the first end 341 in the first space 34.In the present embodiment, first end cover 46 is made of rubber material, so as to
Sealing effect can be further improved, and then improves the dust-proof effect of motor 20.
In the present embodiment, second end cover 35 is fixedly connected with the composition of armature spindle 31, and second end cover 35 can be with armature spindle
31 are rotated synchronously with first axle 102 for axis.Second end cover 35 is formed there are one annular surface 351, and annular surface 351 is vertical at one
Extend in the plane of first axle 102.Second end cover 35 close to insulating frame 43 front end 432a set, annular surface 351 with
The channel 36 in the utility model is formed between the end face of front end 432a.In the present embodiment, which is exclusive communication
First space 34 and the path of second space 45.
As shown in figure 11, in a plane by first axle 102, channel 36 includes first in the section of the plane
361 and second section line 362 of section line, the first section line 361 and closest the distance between 2 points of the second section line 362
Less than or equal to 5mm, furthermore, closest the distance between 2 points small of the first section line 361 and the second section line 362
In equal to 2mm.In the present embodiment, channel 36 is along radially extending perpendicular to first axle 102, therefore the first section line 361
It is straight line and is mutually parallel with the second section line 362, the distance between the first section line 361 and the second section line 362 is less than
Equal to 2mm.
In the present embodiment, the wind scooper 14 for radiating airflow to be oriented to air stream outlet 114 is additionally provided in housing 11.
The electric tool 200 of second embodiment as shown in Figure 12 to Figure 13 and the electric tool 100 in first embodiment
With identical housing 21, motor 50, output 22, fan 23 and wind scooper 24.As shown in Figure 13 to Figure 17, the present embodiment with
The position of the concrete structure for differing only in second end cover 65 and second end cover 65 setting of first embodiment is different.For
One embodiment can be applied in the present embodiment with the part that the present embodiment is adapted.
Specifically, in the present embodiment, fan 23 includes：Mounting portion 231 and flabellum portion 232, mounting portion 231 is used for will
Fan 23 is fixed to armature spindle 61, and 232 self installation portion 231 of flabellum portion extends outwardly.Second end cover 65 is fixedly attached to fan 23
Mounting portion 231 on, rotated together with armature spindle 61 with fan 23 so as to second end cover 65.
Wind scooper 24 is docked with the front end 732a of insulating frame 73 so that the first space 64 is at the docking of both
It is sealed with respect to second space 75.Wind scooper 24 further includes the ring part 241 around first axle 202, and ring part 241 surrounds first
The space that axis 202 is formed is docked with the first space 64 so that the first space 64 is obtained along 202 direction of first axle
Further extension, in other words, ring part 241 are docked around the space that first axle 202 is formed with the first space 64
Collectively form the annular space in the sealing of diametrically opposite second space 75 perpendicular to first axle 202.65 shape of second end cover
Into there is annular groove 651, annular groove 651 is set around armature spindle 61.Ring part 241 is embedded in annular groove 651, and ring part
Do not contacted between 241 and the cell wall of annular groove 651 so as to formed in the present embodiment for the first space of exclusive communication 64 and the
The channel 66 in two spaces 75.The further gap by being formed between the end face of second end cover 65 and ring part 241 of channel 66.Ring
Shape portion 241 does not contact with the cell wall and slot bottom of annular groove 651, so that being formed between ring part 241 and annular groove 651
Mazy channel 66.
As shown in figure 17, in the present embodiment, in a plane by first axle 202, channel 66 is in the plane
Interior section includes the first passage portion 661, second channel portion 662 and the third channel portion 663 that extend along first straight line direction,
Wherein, first passage portion 661 extends along first straight line direction, and second channel portion 662 extends along second straight line direction, third channel
Portion 663 extends along third rectilinear direction, and the first straight line direction and the second of the extension of second channel 66 that first passage 66 extends are straight
Line direction is intersected and vertically, the third rectilinear direction phase that the first straight line direction that first passage 66 extends extends with third channel 66
It is mutually parallel.In the present embodiment, second channel portion 662 is most narrow with respect to first passage portion 661 and third channel portion 663, that is to say
It says, it is vertical at one that section of the second channel portion 662 in a plane perpendicular to second straight line is less than first passage portion 661
Section in the plane of first straight line, and section of the second channel portion 662 in the plane perpendicular to second straight line is also less than
Third channel portion 663 is in a section in the plane of third straight line, it can be considered that second in the present embodiment
Channel part 662 is most narrow passage portion.
In the present embodiment, fan 23 is connected directly to armature spindle 61, and in order to preferably radiate, fan 23 is imitated using heat conduction
The relatively good aluminum material of fruit is made, in such manner, it is possible to which so that the heat in the first space 64 is distributed by armature spindle 61 and fan 23
It goes out.Alternatively, in other embodiments, other heat-conducting mediums can also be provided between fan 23 and armature spindle 61, equally
, the heat in the first space 64 can be distributed preferably.
In other embodiments, magnetic part can also be connected in second end cover 65.For being ground for angle, magnetic part can
Adsorbing metal dust, after long-term operation, metallic dust is attracted on magnetic part so as to seal channel 66, and then is played preferable
Dust-proof effect.
The basic principle, main feature and advantage of the utility model has been shown and described above.The technical staff of the industry
It should be appreciated that above-described embodiment does not limit the utility model in any form, it is all by the way of equivalent substitution or equivalent transformation
The technical solution obtained, all falls in the scope of protection of the utility model.
Claims (16)
1. a kind of electric tool, including：
Output；
Motor, for the output to be driven to move to export power；
Housing, the accommodating chamber including being used to accommodate the motor；
The motor includes：
Armature spindle can be moved by shaft rotation of first axle；
Rotor core is formed with the armature spindle and is rotated synchronously；
Stator module, including coil windings；
It is characterized in that：
The stator module around the first axle the accommodating chamber is separated into the first space and second space, described turn
Sub- iron core is arranged in first space, and the coil windings are arranged in the second space；First space is on edge
Include the first end far from the output and the second end close to the output on the first axle direction；
The motor further includes：
First end cover is arranged on the first end in first space to seal described first at the first end in first space
Space；
Second end cover is arranged on the second end in first space and with being formed between the structure for forming the second space
It is useful for that first space is made to form the channel connected with the second space.
2. electric tool according to claim 1, it is characterised in that：
The second end cover is rotated with the armature spindle.
3. electric tool according to claim 1, it is characterised in that：
The electric tool further includes：
Fan is fixedly attached to the armature spindle；
When the fan rotates, the air pressure in first space is less than the air pressure in the second space.
4. electric tool according to claim 1, it is characterised in that：
The channel includes：
Most narrow passage portion has the minimum area of section in the plane perpendicular to the extending direction of the channel；
First space extends along the first axle direction；It is empty that the area of section in the most narrow passage portion is less than described first
Between maximum area of section in the plane perpendicular to the first axle.
5. electric tool according to claim 1, it is characterised in that：
The stator module further includes：
Stator core, the multiple teeth portion extended including yoke portion and from yoke portion；
Insulating frame is at least partially disposed between the stator core and the coil windings；
The insulating frame includes the front end close to the output and the rear end far from the output, the first end cover
It is connected to the rear end of the insulating frame.
6. electric tool according to claim 5, it is characterised in that：
The insulating frame further includes spaced around portion on multiple circumferencial directions around the first axle；It is described to enclose
The opening for exposing the teeth portion is formed with around portion；The motor further include be arranged on described in adjacent two around portion it
Between spacer.
7. electric tool according to claim 5, it is characterised in that：
The channel is formed between the end face of the second end cover and the front end.
8. electric tool according to claim 1, it is characterised in that：
The second end cover is fixedly attached to the armature spindle.
9. electric tool according to claim 1, it is characterised in that：
Section of the channel in the plane of a process first axle includes the first section line and the second section line, institute
It states closest the distance between 2 points of the first section line and second section line and is less than or equal to 5mm.
10. electric tool according to claim 1, it is characterised in that：
The electric tool further includes：
Fan is fixedly attached to the armature spindle；
Wherein, the second end cover is fixedly attached to the fan.
11. electric tool according to claim 1, it is characterised in that：
The electric tool further includes：
Fan is fixedly attached to the armature spindle；
The fan, which is adopted, to be formed from aluminium.
12. electric tool according to claim 1, it is characterised in that：
The electric tool further includes：
Wind scooper, the ring part including surrounding the first axle；
The ring part surrounds the space formed and forms a relatively described second space perpendicular to institute with first space
State the annular space radially sealed of first axle；It is formed between the end face of the second end cover and the ring part described logical
Road.
13. electric tool according to claim 12, it is characterised in that：
The second end cover is formed with annular groove, and the ring part is embedded in the annular groove, and the ring part and the ring
There is gap between the cell wall of shape slot.
14. electric tool according to claim 1, it is characterised in that：
The channel includes：
First passage portion extends along first straight line direction；
Second channel portion extends along second straight line direction；
Wherein, the first straight line direction is intersected with the second straight line direction.
15. electric tool according to claim 1, it is characterised in that：
There are one magnetic parts for the second end cover connection.
16. electric tool according to claim 1, it is characterised in that：
The first end cover is made of rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721590162.0U CN207518431U (en) | 2017-11-23 | 2017-11-23 | Electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721590162.0U CN207518431U (en) | 2017-11-23 | 2017-11-23 | Electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207518431U true CN207518431U (en) | 2018-06-19 |
Family
ID=62540997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721590162.0U Active CN207518431U (en) | 2017-11-23 | 2017-11-23 | Electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207518431U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109831067A (en) * | 2017-11-23 | 2019-05-31 | 南京德朔实业有限公司 | Electric tool |
| CN110661378A (en) * | 2018-06-29 | 2020-01-07 | 南京德朔实业有限公司 | Hair-dryer and garden instrument |
| CN111697766A (en) * | 2019-03-14 | 2020-09-22 | 南京德朔实业有限公司 | Electric tool and motor thereof |
| CN111756174A (en) * | 2019-03-26 | 2020-10-09 | 南京德朔实业有限公司 | Electric tool |
-
2017
- 2017-11-23 CN CN201721590162.0U patent/CN207518431U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109831067A (en) * | 2017-11-23 | 2019-05-31 | 南京德朔实业有限公司 | Electric tool |
| CN109831067B (en) * | 2017-11-23 | 2024-04-26 | 南京泉峰科技有限公司 | Electric tool |
| CN110661378A (en) * | 2018-06-29 | 2020-01-07 | 南京德朔实业有限公司 | Hair-dryer and garden instrument |
| CN110653699A (en) * | 2018-06-29 | 2020-01-07 | 南京德朔实业有限公司 | Angle grinder and electric tool |
| CN110661378B (en) * | 2018-06-29 | 2021-10-22 | 南京德朔实业有限公司 | Hair-dryer and garden instrument |
| CN110653699B (en) * | 2018-06-29 | 2022-08-05 | 南京泉峰科技有限公司 | Angle grinder and electric tool |
| CN111697766A (en) * | 2019-03-14 | 2020-09-22 | 南京德朔实业有限公司 | Electric tool and motor thereof |
| CN111756174A (en) * | 2019-03-26 | 2020-10-09 | 南京德朔实业有限公司 | Electric tool |
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