CN205509714U - Motor dustproof mechanism , motor that is equipped with this mechanism, electric tool - Google Patents
Motor dustproof mechanism , motor that is equipped with this mechanism, electric tool Download PDFInfo
- Publication number
- CN205509714U CN205509714U CN201620095631.0U CN201620095631U CN205509714U CN 205509714 U CN205509714 U CN 205509714U CN 201620095631 U CN201620095631 U CN 201620095631U CN 205509714 U CN205509714 U CN 205509714U
- Authority
- CN
- China
- Prior art keywords
- motor
- stator
- rotor
- dust
- sealing member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to a motor dustproof mechanism, motor that is equipped with this mechanism, electric tool, motor dustproof mechanism installs in the motor, the motor include transmission shaft, rigid coupling in the rotor of transmission shaft and encircleing the stator of rotor, motor dustproof mechanism includes baffle, sealing member and fastener, the sealing member is located on the transmission shaft, the baffle is located on the stator, the both ends of fastener respectively with the sealing member reaches the baffle cooperation is in order to form seal structure, in order to seal the rotor with the stator to prevent that outside dust from getting into the rotor with clearance between the stator. Above -mentioned motor dustproof mechanism cooperates with sealing member and rotor respectively through the fastener to make rotor tip and clearance between the stator tip keep apart with external environment, thereby avoid dust among the external environment to get into in the clearance between rotor and the stator and adsorb on the rotor, prolong the life of motor.
Description
Technical field
This utility model relates to machine field, particularly relate to motor dust-proof mechanism, be provided with this mechanism motor,
Electric tool.
Background technology
Motor refers to realize electric energy conversion or a kind of calutron of transmission according to the law of electromagnetic induction, and it is main
Effect is to produce driving torque, as electrical appliance or the power source of various machinery.Brushless direct current motor is by forever
Magnet rotor, multipole wound stator, position sensor (such as Hall element) etc. form.Position sensing is pressed
The change of rotor-position, carries out the change of current along a graded to the electric current of stator winding and (i.e. detects rotor magnetic pole
The position of relative stator winding, and at defined location, produce position sensor signal, through signaling conversion circuit
Go after process to control power switch circuit, carry out winding current switching by certain logical relation).
And in motor runs, the mechanical friction of part can produce dust, and dust is easily accessible stator and rotor
Between gap, and then be attached on rotor, affect operation and the service life of motor.
Utility model content
Based on this, it is necessary to enter for dust and adsorb the problem on rotor between stator and rotor, carry
Adsorb the motor dust-proof mechanism on rotor for a kind of avoiding, be provided with between dust entrance stator and rotor
The motor of this mechanism and electric tool.
A kind of motor dust-proof mechanism, described motor dust-proof mechanism is installed on motor, described motor include power transmission shaft,
Be fixed in the rotor of described power transmission shaft and around the stator of described rotor, described motor dust-proof mechanism include baffle plate,
Sealing member and fastener, described sealing member is located on described power transmission shaft, and described baffle plate is located on described stator, institute
The two ends stating fastener seal structure with described sealing member and described baffle fit to be formed respectively, described to close
Rotor and described stator, thus prevent external dust from entering the gap between described rotor and described stator.
Above-mentioned motor dust-proof mechanism, by fastener respectively with sealing member and rotor engagement so that rotor tip
And the gap between stator end isolates with external environment, thus the dust in external environment is avoided to enter rotor
And in the gap between stator and adsorb on rotor, extend the service life of motor.
Wherein in an embodiment, described fastener is provided with groove near the end of one end of described stator, with
It is buckled in described baffle plate.
Wherein in an embodiment, described stator end is provided with stator end plate, and described baffle plate is Hall Plate,
Described baffle plate is fixed in described stator end plate by securing member.
Wherein in an embodiment, described fastener is not connected with one end of described baffle plate and stretches in described sealing member.
Wherein in an embodiment, described fastener stretches into one end of described sealing member and described sealing member interference
Coordinate.
Wherein in an embodiment, the end of described power transmission shaft is provided with bearing, and described sealing member is sheathed on institute
State bearing.
Wherein in an embodiment, described sealing member is rubber ring.
A kind of motor, described motor includes above-mentioned motor dust-proof mechanism.
Wherein in an embodiment, described motor also includes power transmission shaft, is fixed in the rotor of described power transmission shaft
And the stator around described rotor, it is provided with the heat dissipation wind channel extended along stator outer surface in described motor, described
Motor dust-proof mechanism is by the gap between end and the end of described stator of described rotor and described heat dissipation wind channel
Isolation.
Above-mentioned motor, the motor dust-proof mechanism being provided with can avoid the dust in heat dissipation wind channel to enter rotor and stator
Between gap in and be attached on rotor, and the heat of stator outer surface can be taken away by heat dissipation wind channel, from
And reduce the temperature of stator, increase the stability of motor work, extend the service life of motor.
A kind of electric tool, including above-mentioned motor dust-proof mechanism.
Above-mentioned electric tool, the setting of motor dust-proof mechanism, the dust in housing of electric tool can be avoided to enter
In gap between rotor and stator, absorption is on rotor, thus increases the stability of this electric tool, prolongs
The service life of this electric tool long.
Accompanying drawing explanation
Fig. 1 is the structural representation of the electric tool of an embodiment；
Fig. 2 is the schematic diagram of the motor dust-proof mechanism of the electric tool shown in Fig. 1.
Detailed description of the invention
For the ease of understanding this utility model, below with reference to relevant drawings, this utility model is carried out more comprehensively
Description.Accompanying drawing gives preferred embodiment of the present utility model.But, this utility model can be with
Many different forms realize, however it is not limited to embodiment described herein.On the contrary, provide these real
The purpose executing example is to make the understanding to disclosure of the present utility model more thorough comprehensively.
It should be noted that when element is referred to as " being fixed on " another element, and it can be directly at another
On individual element or element placed in the middle can also be there is.When an element is considered as " connection " another yuan
Part, it can be directly to another element or may be simultaneously present centering elements.Used herein
Term " vertical ", " level ", "left", "right" and similar statement simply to illustrate that mesh
's.
Unless otherwise defined, all of technology used herein and scientific terminology with belong to of the present utility model
The implication that those skilled in the art are generally understood that is identical.Institute in description of the present utility model herein
The term used is intended merely to describe the purpose of specific embodiment, it is not intended that in limiting this utility model.
Term as used herein " and/or " include the arbitrary and all of one or more relevant Listed Items
Combination.
As shown in Figures 1 and 2, a kind of motor dust-proof mechanism 70 of this preferred embodiment, the dust-proof machine of this motor
Structure 70 is installed on motor, and motor includes power transmission shaft 10, the rotor 30 being fixed in power transmission shaft 10 and surrounding rotor
The stator 50 of 30, power transmission shaft 10 can rotor driven 30 relative stator 50 rotate, rotor 30 and stator 50
Between there is gap.
Wherein, motor dust-proof mechanism 70 includes baffle plate 76, sealing member 72 and fastener 74, and sealing member 72 sets
On power transmission shaft 10, baffle plate 76 is located on stator 50, the two ends of fastener 74 respectively with sealing member 72 and gear
Plate 76 coordinates to form sealing structure, with enclosed rotor 30 and stator 50, thus prevents external dust from entering
Gap between rotor 30 and stator 50.
Above-mentioned motor dust-proof mechanism 70, is coordinated with sealing member 72 and baffle plate 76 respectively by fastener 74, thus
Make the gap between rotor 30 end and stator 50 end isolate with external environment, thus avoid external environment
In dust enter in the gap between rotor 30 and stator 50 and adsorb on rotor 30, extend motor
Service life.
Referring to Fig. 1 and Fig. 2, in the form of a ring, fastener 74 is near the end of one end of stator 50 for baffle plate 76
Portion is provided with groove 742, to be buckled in baffle plate 76.In the present embodiment, stator 50 end is provided with stator end plate
54, baffle plate 76 is Hall Plate, and Hall Plate is fixed in stator end plate 54 by securing member 56.Further,
Securing member 56 is screw.
Fastener 74 is not connected with one end of baffle plate 76 and stretches in sealing member 72, and with sealing member 72 interference fit.
So, the interval between fastener 74 closed guard 76 and sealing member 72, thus avoid in external environment
Dust enter the gap between rotor 30 and stator 50 by the interval between baffle plate 76 and sealing member 72
In, and then avoid adsorbing powder dust on rotor 30.
The end of power transmission shaft 10 is provided with bearing 11, and sealing member 72 is sheathed on bearing 11.Specifically, sealing member
72 hierarchic structures in the form of a ring, the first paragraph different including external diameter and second segment, the first paragraph set of sealing member 72
Being located at bearing 11, the second segment of sealing member 72 highlights bearing 11 end, and inwall and fastener 74 interference fit,
Thus avoid dust to enter in bearing 11, affect the rotation of power transmission shaft 10.In the present embodiment, second segment
External diameter more than the external diameter of first paragraph.
In the present embodiment, sealing member 72 is rubber ring, therefore has preferable elasticity, joins with fastener 74
Close and can reach good sealing effectiveness.
Above-mentioned motor dust-proof mechanism 70, fastener 74 coordinates with baffle plate 76 and sealing member 72 respectively, outside avoiding
Dust in boundary's environment enters in the gap between rotor 30 and stator 50, thus avoids adsorbing powder dust turning
On son 30.Meanwhile, dust also can be avoided to enter in the bearing 11 being installed on power transmission shaft 10.
As shown in Figures 1 and 2, a kind of motor of this preferred embodiment, including above-mentioned motor dust-proof mechanism
70。
Motor also includes power transmission shaft 10, the rotor 30 being fixed in power transmission shaft 10 and the stator of surrounding rotor 30
50, be provided with heat dissipation wind channel 90 in motor, motor dust-proof mechanism 70 by rotor 30 end and stator 50 end it
Between gap isolate with heat dissipation wind channel 90, thus avoid dust in heat dissipation wind channel 90 to enter rotor 30 with fixed
In gap between son 50, and it is attached on rotor 30.
In the present embodiment, heat dissipation wind channel 90 extends along stator 50 outer surface, thus can be taken away by air-flow
The heat of stator 50 outer surface, lowers the temperature to stator 50.
Above-mentioned motor, the motor dust-proof mechanism 70 being provided with can avoid the dust in heat dissipation wind channel 90 to enter rotor
Gap between 30 and stator 50 is attached on rotor 30, and stator can be taken away by heat dissipation wind channel 90
The heat of 50 outer surfaces, thus reduce the temperature of stator 50, increase the stability of motor work, extend motor
Service life.
As shown in Figures 1 and 2, a kind of electric tool 100 of this preferred embodiment, including above-mentioned motor for preventing
Dirt mechanism 70.In the present embodiment, electric tool 100 is angle grinding machine, it will be understood that in other embodiments
In, electric tool 100 can be electric drill etc..
Above-mentioned electric tool 100, the setting of motor dust-proof mechanism 70, in can avoiding electric tool 100 housing
Dust enter in the gap between rotor 30 and stator 50 and adsorb on rotor 30, thus increase this electricity
The stability of power driven tools 100, extends the service life of this electric tool 100.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right
The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills
There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and
In detail, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, it is right
For those of ordinary skill in the art, without departing from the concept of the premise utility, it is also possible to do
Going out some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, this utility model is special
The protection domain of profit should be as the criterion with claims.
Claims (10)
1. a motor dust-proof mechanism, described motor dust-proof mechanism is installed on motor, and described motor includes transmission
Axle, it is fixed in the rotor of described power transmission shaft and around the stator of described rotor, it is characterised in that described motor
Dust-proof mechanism includes that baffle plate, sealing member and fastener, described sealing member are located on described power transmission shaft, described baffle plate
Being located on described stator, the two ends of described fastener are close to be formed with described sealing member and described baffle fit respectively
Seal structure, to close described rotor and described stator, thus prevents external dust from entering described rotor with described
Gap between stator.
Motor dust-proof mechanism the most according to claim 1, it is characterised in that described fastener is near described
The end of one end of stator is provided with groove, to be buckled in described baffle plate.
Motor dust-proof mechanism the most according to claim 2, it is characterised in that described stator end is provided with
Stator end plate, described baffle plate is Hall Plate, and described baffle plate is fixed in described stator end plate by securing member.
Motor dust-proof mechanism the most according to claim 2, it is characterised in that described fastener is not connected with institute
The one end stating baffle plate is stretched in described sealing member.
Motor dust-proof mechanism the most according to claim 4, it is characterised in that described fastener stretches into described
One end of sealing member and described sealing member interference fit.
Motor dust-proof mechanism the most according to claim 1, it is characterised in that the end of described power transmission shaft
Being provided with bearing, described sealing member is sheathed on described bearing.
Motor dust-proof mechanism the most according to claim 1, it is characterised in that described sealing member is rubber
Circle.
8. a motor, it is characterised in that described motor includes as described in claim 1～7 any one
Motor dust-proof mechanism.
Motor the most according to claim 8, it is characterised in that described motor also includes power transmission shaft, consolidates
It is connected to the rotor of described power transmission shaft and around the stator of described rotor, is provided with along stator outer surface in described motor
The heat dissipation wind channel extended, described motor dust-proof mechanism is by between end and the end of described stator of described rotor
Gap and described heat dissipation wind channel isolate.
10. an electric tool, it is characterised in that include the electricity as described in claim 1～7 any one
Machine dust-proof mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095631.0U CN205509714U (en) | 2016-01-29 | 2016-01-29 | Motor dustproof mechanism , motor that is equipped with this mechanism, electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095631.0U CN205509714U (en) | 2016-01-29 | 2016-01-29 | Motor dustproof mechanism , motor that is equipped with this mechanism, electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205509714U true CN205509714U (en) | 2016-08-24 |
Family
ID=56724206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620095631.0U Active CN205509714U (en) | 2016-01-29 | 2016-01-29 | Motor dustproof mechanism , motor that is equipped with this mechanism, electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205509714U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914206A (en) * | 2016-10-09 | 2018-04-17 | 苏州宝时得电动工具有限公司 | Brushless angle grinder |
| CN109044482A (en) * | 2018-09-25 | 2018-12-21 | 天津昊野科技有限公司 | A kind of high-speed permanent magnetic synchronous motor applied to bone drill |
-
2016
- 2016-01-29 CN CN201620095631.0U patent/CN205509714U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914206A (en) * | 2016-10-09 | 2018-04-17 | 苏州宝时得电动工具有限公司 | Brushless angle grinder |
| CN109044482A (en) * | 2018-09-25 | 2018-12-21 | 天津昊野科技有限公司 | A kind of high-speed permanent magnetic synchronous motor applied to bone drill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204497889U (en) | The permanent magnetic brushless that rotor is dust-proof | |
| CN104539078B (en) | Permanent magnet brushless motor comprising rotor with dustproof structure | |
| CN205509714U (en) | Motor dustproof mechanism , motor that is equipped with this mechanism, electric tool | |
| US20140125166A1 (en) | Rotating electrical machine | |
| CN203488594U (en) | Dry-type single-piece electromagnetic clutch | |
| CN204082295U (en) | A kind of changeable flow magnetic clutch cooling waterpump | |
| CN105914932A (en) | Waterproof dustproof device of external rotor direct-current brushless motor heat dissipation fan | |
| CN205544715U (en) | Motor dustproof mechanism , motor that is equipped with this mechanism, electric tool | |
| CN206277236U (en) | Electric tool | |
| JP6259574B2 (en) | Motor equipment | |
| CN205613748U (en) | External rotor electric machine purger | |
| CN203301247U (en) | Commutatorless permanent magnet brushless DC motor | |
| CN205864137U (en) | A kind of outer rotor DC Brushless Motor radiator fan dust and water proof apparatus | |
| CN205565966U (en) | Motor with high -sealing structure | |
| CN203589920U (en) | Stage lighting rotation motor | |
| CN202438693U (en) | Dust-proof sealed alternating-current permanent magnet synchronous electric main shaft | |
| CN102457135A (en) | Starting motor used by engine | |
| CN205544714U (en) | Electric tool casing and be equipped with electric tool of this casing | |
| CN206650529U (en) | A kind of drier motor | |
| CN202276264U (en) | Circular flat trislot direct-current iron core micromotor with improved shell | |
| CN202674322U (en) | Shaft shoulder dustproof structure of electromagnetic clutch | |
| CN203229746U (en) | Direct-driven overedger | |
| CN203243186U (en) | Magnetic switch structure for explosion-proof motor | |
| CN102223043A (en) | External-rotor brushless motor system | |
| CN207884365U (en) | The process equipment of turntable motor and the application motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |