CN209692466U - Motor assembly - Google Patents
Motor assembly Download PDFInfo
- Publication number
- CN209692466U CN209692466U CN201920323104.4U CN201920323104U CN209692466U CN 209692466 U CN209692466 U CN 209692466U CN 201920323104 U CN201920323104 U CN 201920323104U CN 209692466 U CN209692466 U CN 209692466U
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- Prior art keywords
- handle housing
- air inlet
- motor
- air
- motor assembly
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Abstract
The utility model discloses a kind of motor assembly, rotor, stator and air blade are arranged in circular tube shaped electric machine casing in the front-back direction；Motor stator covers outside rotor rear portion；Rotor front is circumferentially fixed with air blade；The tube wall of the electric machine casing between air blade is provided with air inlet corresponding to stator；Motor switch contact is fixed in handle housing head；The head end of handle housing is open；Handle housing corresponds at motor switch contact or its tail end-side has air inlet gap；Handle housing except head end be open and air inlet gap in addition to part seal, connection forms the air duct of handle housing to air inlet gap between end opening to the end；The air inlet of the head end opening sealing connection electric machine casing tube wall of handle housing.This practical motor assembly can be not only the motor switch contact temperature with high efficiency far from rotor, and simple and practical in structure.
Description
Technical field
The utility model relates to motor, in particular to a kind of motor assembly.
Background technique
The working ability of equipment is also mentioned with the development of technical matters in electro-mechanical arts especially Power Tools Industries
Higher requirement out, this requires the motor assembly of tool can the bigger electric current of load and higher power, while it is matched
Switch must have more functions, it can be common that switch built-in control circuit plate, or an independent control electricity is directly provided
Road plate.
Either switch or control circuit board, can all generate very on internal electronic element because of high current and high power
High temperature, it is possible to short circuit or open circuit etc. be caused to influence the ongoing operation of machine.Most well known mode is will to switch in the market
Or control circuit board is mounted on the place in casing close to rotor, is formed by air-flow using rotor rotation and directly takes away part heat
Amount.But because causing temperature in casing very high because continuing working rotor and stator fever close to rotor, cause switch or
The ambient temperature of control circuit board is also very high, while also resulting in the limitation of locations of structures.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of motor assemblies, can not only open for the motor far from rotor
Contact temperature with high efficiency is closed, and simple and practical in structure.
In order to solve the above technical problems, motor assembly provided by the utility model comprising electric machine casing 1, handle housing
2, motor switch contact 3, motor stator 52, rotor 51 and air blade 53；
Rotor 51, stator 52 and air blade 53 are arranged in circular tube shaped electric machine casing 1 in the front-back direction；
52 sets of motor stator outside 51 rear portion of rotor；
51 front of rotor is circumferentially fixed with air blade 53；
The tube wall of the electric machine casing 1 between air blade 53 is provided with air inlet 11 corresponding to stator 52；
Motor switch contact 3 is fixed in the handle housing 2；
The head end of the handle housing 2 is open；
The handle housing 2 corresponds at motor switch contact 3 or its tail end-side has air inlet gap；
The handle housing 2 except head end be open and air inlet gap in addition to part seal, air inlet gap end opening to the end
Between connection form the air duct of handle housing 2；
The air inlet 11 of head end opening sealing connection 1 tube wall of electric machine casing of the handle housing 2.
Preferably, motor assembly further includes wind scooper 4；
The annular bottom plate palette of the wind scooper 4 is fixed on the anchor ring of 52 front end of stator, and the wind scooper 4 is along ring
For the excircle of shape bottom plate integrally formed with forward side wall, the side wall surrounds 53 periphery of air blade；
The air inlet 11 is arranged in the tube wall of the electric machine casing 1 of the side-walls of the wind scooper 4.
Preferably, the side wall of the wind scooper 4 offers at least one notch, one of notch is located at electric machine casing 1
At the air inlet 11 of tube wall.
Preferably, the handle housing 2 is " C " shape；
The air inlet 11 of head end opening sealing connection 1 tube wall of electric machine casing of " C " shape handle housing 2；
The tail end sealing of " C " shape handle housing 2 is fixedly attached to 1 tube wall of electric machine casing of 11 opposite side of air inlet.
Preferably, the handle housing 2 is assembled together and is constituted by front hand grip shell 22 and back handle shell 21；
Front hand grip shell 22, back handle shell 21 respectively have half air duct；
The front hand grip shell 22, the back handle shell 21 that are assembled together collectively form the air duct of the handle housing 2.
Preferably, motor assembly further includes switch button 31；
The switch button 31 passes through the handle housing 2 at the motor switch contact 3, and 31 outer end of switch button leans out hand
Outside handle shell 2, inner end is insinuated into handle housing 2；
The switch button 31 is formed with air inlet gap between the handle housing 2；
When the switch button 31 is pressed into the handle housing 2, can make described in the triggering of 31 inner end of switch button
Switch contact 3 is switched on or switched off the switch contact 3.
Preferably, motor assembly further includes safe cage knob 32；
The safe cage knob 32 passes through the handle housing 2 of 3 tail end-side of motor switch contact, and safe 32 outer end of cage knob is visited
Out outside handle housing 2, inner end is insinuated into handle housing 2；
The safe cage knob 32 is formed with air inlet gap between the handle housing 2；
When the safe cage knob 32 is located at home, the switch button 31 is locked out activity；
When the safe cage knob 32 is located at activated positon, the unlock of switch button 31 can be pressed.
The motor assembly of the utility model when rotor 51 rotates, drives the rotation of air blade 53 to extract rotor 51
It is blown out to outside electric machine casing 1 forwards with the hot-air between stator 52, and handle case is extracted by the air inlet 11 simultaneously
Air in body 2 is blown out to forwards outside electric machine casing 1, and outside air is from corresponding to from motor switch contact 3 or tail end-side
Air inlet gap enters in handle housing 2, first flows through around motor switch contact 3, realizes and drops to the cooling of motor switch contact 3
Temperature.Into the air duct of handle housing 2 lead in outside air because apart from rotor 51 farther out, even if motor works long hours,
Its influence to the air duct air themperature for entering handle housing 2 is also little.The motor assembly can be not only the motor far from rotor
3 temperature with high efficiency of switch contact, and it is simple and practical in structure.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model, below to the required attached drawing of the utility model
It is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is one embodiment schematic diagram of motor assembly of the utility model；
Fig. 2 is the one embodiment sectional view of motor assembly of the utility model；
Fig. 3 is that one embodiment of motor assembly of the utility model does not install rotor and air blade schematic diagram；
Fig. 4 is that one embodiment of motor assembly of the utility model has installed rotor and air blade schematic diagram.
Description of symbols in figure:
1 electric machine casing；11 air inlets；2 handle housings；22 front hand grip shells；21 back handle shells；3 motor switch contacts；
31 switch buttons；32 safe cage knobs；4 wind scoopers；51 rotors；52 motor stators；53 air blades.
Specific embodiment
Below in conjunction with attached drawing, clear, complete description is carried out to the technical solution in the utility model, it is clear that retouched
The embodiment stated is a part of the embodiment of the utility model, instead of all the embodiments.Based on the reality in the utility model
Apply example, those of ordinary skill in the art's all other embodiment obtained without making creative work, all
Belong to the range of the utility model protection.
Embodiment one
As shown in fig. 1 to fig. 4, it includes electric machine casing 1, handle housing 2, motor switch contact 3, electricity that motor assembly, which includes it,
Machine stator 52, rotor 51 and air blade 53；
Rotor 51, stator 52 and air blade 53 are arranged in circular tube shaped electric machine casing 1 in the front-back direction；
52 sets of motor stator outside 51 rear portion of rotor；
51 front of rotor is circumferentially fixed with air blade 53；
The tube wall of the electric machine casing 1 between air blade 53 is provided with air inlet 11 corresponding to stator 52；
Motor switch contact 3 is fixed in the handle housing 2；
The head end of the handle housing 2 is open；
The handle housing 2 corresponds at motor switch contact 3 or its tail end-side has air inlet gap；
The handle housing 2 except head end be open and air inlet gap in addition to part seal, air inlet gap end opening to the end
Between connection form the air duct of handle housing 2；
The air inlet 11 of head end opening sealing connection 1 tube wall of electric machine casing of the handle housing 2.
The motor assembly of embodiment one when rotor 51 rotates, drives the rotation of air blade 53 to extract rotor 51 same
Hot-air between stator 52 is blown out to forwards outside electric machine casing 1, and extracts handle housing 2 by the air inlet 11 simultaneously
Interior air is blown out to forwards outside electric machine casing 1, outside air from correspond to motor switch contact 3 from or tail end-side air inlet
Gap enters in handle housing 2, first flows through around motor switch contact 3, realizes cooling to motor switch contact 3.
Into the air duct of handle housing 2 lead in outside air because apart from rotor 51 farther out, it is right even if motor works long hours
Influence into the air duct air themperature of handle housing 2 is also little.The motor assembly can be not only the motor switch far from rotor
3 temperature with high efficiency of contact, and it is simple and practical in structure.
Embodiment two
Based on the motor assembly of embodiment one, motor assembly further includes wind scooper 4；
The annular bottom plate palette of the wind scooper 4 is fixed on stator front end anchor ring, and annular bottom plate is circumferentially forward
Integrally formed side wall surrounds 53 periphery of air blade；
The air inlet 11 is arranged in the tube wall of the electric machine casing 1 of the side-walls of the wind scooper 4.
Preferably, the side wall of the wind scooper 4 offers at least one notch, one of notch is located at electric machine casing 1
At the air inlet 11 of tube wall.
The motor assembly of embodiment two, stator front end is with setting wind scooper 4 between air blade 53, energy when air blade 53 rotates
The stronger extraction force more concentrated of the hot-air being supplied between rotor 51, stator 52, more effectively be discharged rotor 51,
Hot-air between stator 52.
Embodiment three
Based on the motor assembly of embodiment one, the handle housing 2 is " C " shape；
The air inlet 11 of head end opening sealing connection 1 tube wall of electric machine casing of " C " shape handle housing 2；
The tail end sealing of " C " shape handle housing 2 is fixedly attached to 1 tube wall of electric machine casing of 11 opposite side of air inlet.
Example IV
Based on the motor assembly of embodiment one, two or three, the handle housing 2 is by front hand grip shell 22 and back handle shell
21 are assembled together composition；
Front hand grip shell 22, back handle shell 21 respectively have half air duct；
The front hand grip shell 22, the back handle shell 21 that are assembled together collectively form the air duct of the handle housing 2.
The motor assembly of example IV, the air duct position on front hand grip shell 22, back handle shell 21 is corresponding, handle housing
2 are assembled together and are constituted by front hand grip shell 22 and back handle shell 21, front hand grip shell 22, the common structure of back handle shell 21
At the air duct of handle housing 2, the airflow channel of good seal is provided for the cooling of motor switch contact 3.
Embodiment five
Based on the motor assembly of embodiment one, motor assembly further includes switch button 31；
The switch button 31 passes through the handle housing 2 at the motor switch contact 3, and 31 outer end of switch button leans out hand
Outside handle shell 2, inner end is insinuated into handle housing 2；
The switch button 31 is formed with air inlet gap between the handle housing 2；
When the switch button 31 is pressed into the handle housing 2, can make described in the triggering of 31 inner end of switch button
Switch contact 3 is switched on or switched off the switch contact 3.
Preferably, motor assembly further includes safe cage knob 32；
The safe cage knob 32 passes through the handle housing 2 of 3 tail end-side of motor switch contact, and safe 32 outer end of cage knob is visited
Out outside handle housing 2, inner end is insinuated into handle housing 2；
The safe cage knob 32 is formed with air inlet gap between the handle housing 2；
When the safe cage knob 32 is located at home, the switch button 31 is locked out activity；
When the safe cage knob 32 is located at activated positon, the unlock of switch button 31 can be pressed.
The motor assembly of embodiment five, switch button 31, safe cage knob 32 are movable parts, and outside air is from switch button
31, safe cage knob 32 enters in handle housing 2 with the gap between handle housing 2, flows through around motor switch contact 3, real
Now cooling to motor switch contact 3.
The above is only preferred embodiment of the present application, it is not used to limit the application.Come for those skilled in the art
It says, various changes and changes are possible in this application.Within the spirit and principles of this application, made any modification, equivalent
Replacement, improvement etc., should be included within the scope of protection of this application.
Claims (7)
1. a kind of motor assembly, which is characterized in that it include electric machine casing (1), handle housing (2), motor switch contact (3),
Motor stator (52), rotor (51) and air blade (53)；
Rotor (51), stator (52) and air blade (53) setting are in circular tube shaped electric machine casing (1) in the front-back direction；
Motor stator (52) covers outside rotor (51) rear portion；
Rotor (51) front is circumferentially fixed with air blade (53)；
Tube wall corresponding to the electric machine casing (1) between stator (52) same to air blade (53) is provided with air inlet (11)；
Motor switch contact (3) is fixed in the handle housing (2)；
The head end of the handle housing (2) is open；
The handle housing (2) corresponds at motor switch contact (3) or its tail end-side has air inlet gap；
The handle housing (2) except head end be open and air inlet gap in addition to part seal, air inlet gap to the end end opening it
Between connection form the air ducts of handle housing (2)；
The air inlet (11) of head end opening sealing connection electric machine casing (1) tube wall of the handle housing (2).
2. motor assembly according to claim 1, which is characterized in that
Motor assembly further includes wind scooper (4)；
The annular bottom plate palette of the wind scooper (4) is fixed on the anchor ring of stator (52) front end, wind scooper (4) edge
For the excircle of annular bottom plate integrally formed with forward side wall, the side wall surrounds air blade (53) periphery；
The air inlet (11) is arranged in the tube wall of the electric machine casing (1) of the side-walls of the wind scooper (4).
3. motor assembly according to claim 2, which is characterized in that
The side wall of the wind scooper (4) offers at least one notch, one of notch be located at electric machine casing (1) tube wall into
At port (11).
4. motor assembly according to claim 1, which is characterized in that
The handle housing (2) is " C " shape；
The air inlet (11) of head end opening sealing connection electric machine casing (1) tube wall of " C " shape handle housing (2)；
The tail end sealing of " C " shape handle housing (2) is fixedly attached to electric machine casing (1) pipe of the air inlet (11) opposite side
Wall.
5. motor assembly according to claim 1, which is characterized in that
The handle housing (2) is assembled together and is constituted by front hand grip shell (22) and back handle shell (21)；
Front hand grip shell (22), back handle shell (21) respectively have half air duct；
The front hand grip shell (22), the back handle shell (21) that are assembled together collectively form the air duct of the handle housing (2).
6. motor assembly according to claim 1, which is characterized in that
Motor assembly further includes switch button (31)；
The switch button (31) passes through the handle housing (2) at the motor switch contact (3), and switch button (31) outer end is visited
Outside, inner end is insinuated into handle housing (2) handle housing (2) out；
The switch button (31) is formed with air inlet gap between the handle housing (2)；
When the switch button (31) is pressed into the handle housing (2), switch button (31) inner end can be made to trigger institute
Switch contact (3) are stated, the switch contact (3) is switched on or switched off.
7. motor assembly according to claim 6, which is characterized in that
Motor assembly further includes safe cage knob (32)；
The safe cage knob (32) passes through the handle housing (2) of motor switch contact (3) tail end-side, and safe cage knob (32) is outside
End leans out handle housing (2) outside, and inner end is insinuated into handle housing (2)；
The safe cage knob (32) is formed with air inlet gap between the handle housing (2)；
When the safe cage knob (32) is located at home, the switch button (31) is locked out activity；
When the safe cage knob (32) is located at activated positon, switch button (31) unlock can be pressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920323104.4U CN209692466U (en) | 2019-03-14 | 2019-03-14 | Motor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920323104.4U CN209692466U (en) | 2019-03-14 | 2019-03-14 | Motor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209692466U true CN209692466U (en) | 2019-11-26 |
Family
ID=68604925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920323104.4U Active CN209692466U (en) | 2019-03-14 | 2019-03-14 | Motor assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209692466U (en) |
-
2019
- 2019-03-14 CN CN201920323104.4U patent/CN209692466U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |