CN113178969B - Positioning device and motor - Google Patents
Positioning device and motor Download PDFInfo
- Publication number
- CN113178969B CN113178969B CN202110429074.7A CN202110429074A CN113178969B CN 113178969 B CN113178969 B CN 113178969B CN 202110429074 A CN202110429074 A CN 202110429074A CN 113178969 B CN113178969 B CN 113178969B
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- Prior art keywords
- positioning
- stator
- rotor housing
- convex body
- arc
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/12—Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking
Abstract
The invention discloses a positioning device and discloses a motor with the positioning device. One of the positioning devices comprises a stator and a rotor shell, and is characterized in that the rotor shell is provided with a positioning piece, the positioning piece comprises an elastic part connected with the rotor shell and a positioning part connected with the elastic part, a convex body and a concave part for accommodating the convex body are arranged between the positioning part and the stator, the convex body and the concave part are matched for positioning, and the rotor shell rotates to drive the convex body and the concave part to be away from each other. The positioning device can position the rotor shell when the motor stops rotating.
Description
Technical Field
The invention relates to the field of motors, in particular to a positioning device and a motor.
Background
The motor is an electromagnetic device which realizes electric energy conversion or transmission according to the electromagnetic induction law and has the main function of generating driving torque.
The motor has a stator and a rotor housing.
However, the conventional motor cannot position the rotor housing at a fixed angle when stopping the rotation.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a positioning device which can position a rotor shell when a motor stops rotating.
The invention also provides a motor with the positioning device.
The positioning device comprises a stator and a rotor shell, and is characterized in that the rotor shell is provided with a positioning piece, the positioning piece comprises an elastic part connected with the rotor shell and a positioning part connected with the elastic part, a convex body and a concave part for accommodating the convex body are arranged between the positioning part and the stator, the convex body and the concave part are matched for positioning, and the rotor shell rotates to drive the convex body and the concave part to be away from each other.
The positioning device provided by the embodiment of the invention at least has the following beneficial effects: through setting up the setting element at rotor case, the setting element includes the elasticity portion of being connected with rotor case, the location portion of being connected with the elasticity portion, it is to be explained, the elasticity portion can be arbitrary elastic material or structure, thereby, the elasticity portion has elasticity, can drive the location portion activity after the elasticity portion receives external force, and simultaneously, set up the concave part of convex body and holding convex body between location portion and stator, convex body and concave part cooperation location, thereby, on the one hand, when rotor case needs stall, the convex body can contact with setting element or stator, thereby produce frictional force, overcome rotor case's inertial rotation, and then, accelerate rotor case's stall time, on the other hand, the cooperation of convex body and concave part can make rotor case and stator stall time fixed at same angle.
In addition, the elastic part has elasticity, produces centrifugal force when the rotor housing is rotatory, and centrifugal force acts on the elastic part for the elastic part is towards the direction of keeping away from the stator and is removed, and the elastic part drives convex body and concave part and keeps away from each other, thereby, when the rotor housing is rotatory, convex body and concave part can not mutually support, and then, avoid convex body and concave part to hinder the rotor housing and rotate.
According to some embodiments of the invention, the end face of the rotor housing is provided with a convex ring portion, and the positioning member is disposed on an inner surface of the convex ring portion.
The beneficial results are: the convex ring part is arranged on the end face of the rotor shell, and the positioning piece is arranged on the inner surface of the convex ring part, so that the positioning piece is prevented from being arranged to influence the distance between the rotor shell and the stator.
According to some embodiments of the invention, the resilient portion is provided as a spring.
The beneficial results are: through setting up the setting element into the shell fragment, on the one hand, the shell fragment has elasticity, and when rotor housing and stator are static relatively, the stator is laminated to the shell fragment for convex body and concave part are close to the cooperation location each other, and when rotor housing rotated, rotor housing can produce centrifugal force, thereby, drive the shell fragment and keep away from the stator, and on the other hand, the shell fragment structure list is thin, and occupation space is little.
According to some embodiments of the present invention, the elastic part is provided in an arc shape, one end of the elastic part is connected to the rotor housing, and the other end of the elastic part extends in a circumferential direction of the rotor housing.
The beneficial results are: through setting up the shell fragment into the arc, the other end of elastic component extends the setting along rotor case's circumference to, on the one hand, make the home range of elastic component between rotor case and stator bigger, avoid rotor case's internal surface to block the shell fragment, on the other hand, elastic component can extend and be longer, thereby, make elastic component produce deformation more easily.
According to some embodiments of the invention, the convex body is provided on the positioning portion, and the concave body is provided on the stator.
The beneficial results are: through setting up the convex body on the elastic component, set up the concave part on the stator to, make the weight of elastic component heavier, and then, when rotor housing rotated, the centrifugal force that the elastic component received was bigger, and the elastic component drives the convex body more easily and keeps away from the concave part.
According to some embodiments of the invention, the convex body has a first arc-shaped face provided on one circumferential side of the rotor housing and a second arc-shaped face provided on the other circumferential side of the rotor housing.
The beneficial results are: through setting up first arcwall face and second arcwall face at the convex body, first arcwall face sets up in rotor case's circumference one side, and the second arcwall face sets up the circumference opposite side at rotor case for the edge of convex body and concave part can smooth and sly pass through, thereby, avoids the convex body and concave part cooperation back card dead.
According to some embodiments of the present invention, the recess portion has a third arc-shaped face provided on one circumferential side of the stator and a fourth arc-shaped face provided on the other circumferential side of the stator.
The beneficial results are: through setting up third arcwall face and fourth arcwall face at the concave part, the third arcwall face sets up in the circumference one side of stator, and the fourth arcwall face sets up the circumference opposite side at the stator for the edge of convex body and concave part can smooth and sly pass, thereby, avoids the convex body and concave part cooperation back card to die.
According to some embodiments of the invention, the number of the positioning members is at least two, and the two positioning members are arranged circumferentially along the axis of the rotor housing.
The beneficial results are: through setting up two setting elements at least, two setting elements are arranged along rotor case's axis circumference to, can reduce rotor case stall's time.
According to some embodiments of the invention, the stator comprises an inner portion located inside the rotor housing and an outer portion located outside the rotor housing, an outer surface of the outer portion being provided with an outer convex ring, the outer convex ring being in a fit seal with an end face of the rotor housing.
The beneficial results are: through the external portion that is located the interior portion of stator setting in rotor case and is located rotor case, the surface of exterior portion sets up outer bulge loop, and outer bulge loop is sealed with rotor case's terminal surface cooperation to, make outer bulge loop can shelter from the clearance between stator and the rotor case, block the clearance that the foreign matter got into between stator and the rotor case, avoid producing the abnormal sound and hinder rotor case and rotate.
An electrical machine according to an embodiment of the second aspect of the invention comprises a positioning device as described in the first aspect of the invention.
The motor provided by the embodiment of the invention at least has the following beneficial effects: the motor is through setting up the setting element at rotor case, the setting element includes the elasticity portion of being connected with rotor case, the location portion of being connected with the elasticity portion, thereby, the elasticity portion has elasticity, can drive the location portion activity after the elasticity portion receives external force, and simultaneously, set up the concave part of convex body and holding convex body between location portion and stator, convex body and concave part cooperation location, thereby, on the one hand, when rotor case needs stall, the convex body can contact with setting element or stator, thereby produce frictional force, overcome rotor case's inertial rotation, and then, accelerate rotor case's the stall time, on the other hand, the convex body and concave part cooperation are fixed at same angle when can making rotor case and stator stall.
In addition, the elastic part has elasticity, produces centrifugal force when the rotor housing is rotatory, and centrifugal force acts on the elastic part for the elastic part is towards the direction of keeping away from the stator and is removed, and the elastic part drives convex body and concave part and keeps away from each other, thereby, when the rotor housing is rotatory, convex body and concave part can not mutually support, and then, avoid convex body and concave part to hinder the rotor housing and rotate.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a positioning device and a motor according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a positioning device and motor shown in fig. 1.
Reference numerals: 100-stator, 110-rotor shell, 120-positioning piece, 130-elastic part, 140-positioning part, 150-convex body, 160-concave part, 170-convex ring part, 180-first arc surface, 190-second arc surface, 200-third arc surface, 210-fourth arc surface, 220-inner part, 230-outer part and 240-outer convex ring.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A positioning apparatus and a motor according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
Referring to fig. 1 and 2, a motor according to an embodiment of the present invention includes a positioning device including a stator 100 and a rotor case 110.
The rotor housing 110 is provided with a positioning element 120, the positioning element 120 includes an elastic part 130 connected with the rotor housing 110 and a positioning part 140 connected with the elastic part 130, a convex body 150 and a concave part 160 for accommodating the convex body 150 are arranged between the positioning part 140 and the stator 100, the convex body 150 and the concave part 160 are matched for positioning, and the rotor housing 110 rotates to drive the convex body 150 and the concave part 160 to be away from each other.
In this embodiment, the positioning element 120 is disposed on the rotor housing 110, and the positioning element 120 includes an elastic portion 130 connected to the rotor housing 110 and a positioning portion 140 connected to the elastic portion 130, it should be noted that, the elastic portion 130 may be any elastic material or structure, therefore, the elastic portion 130 has elasticity, and when the elastic portion 130 receives an external force, the elastic portion can drive the positioning portion 140 to move, and at the same time, between the positioning part 140 and the stator 100, a convex body 150 and a concave part 160 for accommodating the convex body 150 are provided, the convex body 150 and the concave part 160 are positioned in cooperation, thus, on the one hand, when the rotor housing 110 needs to stop rotating, the convex body 150 can contact with the positioning member 120 or the stator 100, thereby generating a friction force, overcoming the inertia rotation of the rotor housing 110, further, the rotation stop time of the rotor case 110 is increased, and the convex body 150 and the concave portion 160 are engaged with each other so that the rotor case 110 and the stator 100 can be fixed at the same angle when the rotation is stopped.
In addition, the elastic portion 130 has elasticity, when the rotor housing 110 rotates, a centrifugal force is generated, the centrifugal force acts on the elastic portion 130, so that the elastic portion 130 moves in a direction away from the stator 100, and the elastic portion 130 drives the convex body 150 and the concave portion 160 to move away from each other, so that when the rotor housing 110 rotates, the convex body 150 and the concave portion 160 do not cooperate with each other, and further, the convex body 150 and the concave portion 160 are prevented from obstructing the rotation of the rotor housing 110.
In some specific embodiments, the end surface of the rotor housing 110 is provided with a convex ring portion 170, and the positioning member 120 is disposed on an inner surface of the convex ring portion 170.
In the present embodiment, the protruding ring portion 170 is disposed on the end surface of the rotor housing 110, and the positioning member 120 is disposed on the inner surface of the protruding ring portion 170, so that the arrangement of the positioning member 120 is prevented from affecting the distance between the rotor housing 110 and the stator 100.
In some specific embodiments, the elastic portion 130 is provided as a spring.
In other embodiments, the resilient portion may also be provided as a spring.
This embodiment is through setting up setting element 120 as the shell fragment, and on the one hand, the shell fragment has elasticity, and when rotor housing 110 and stator 100 were static relatively, shell fragment laminating stator 100 for convex body 150 and concave part 160 are close to the cooperation location each other, and when rotor housing 110 rotated, rotor housing 110 can produce centrifugal force, thereby, drive the shell fragment and keep away from stator 100, and on the other hand, the shell fragment structure list is thin, and occupation space is little.
In some specific embodiments, the elastic portion 130 is disposed in an arc shape, one end of the elastic portion 130 is connected to the rotor housing 110, and the other end of the elastic portion 130 extends along the circumferential direction of the rotor housing 110.
This embodiment is through setting up the shell fragment into the arc, and the other end of elastic component 130 extends the setting along rotor housing 110's circumference to, on the one hand, make elastic component 130 range of motion between rotor housing 110 and stator 100 bigger, avoid rotor housing 110's internal surface to block the shell fragment, on the other hand, elastic component 130 can extend more greatly, thereby, make elastic component 130 produce deformation more easily.
In some specific embodiments, the convex body 150 is disposed on the positioning part 140, and the concave part 160 is disposed on the stator 100.
In this embodiment, the convex body 150 is disposed on the elastic portion 130, and the concave portion 160 is disposed on the stator 100, so that the elastic portion 130 is heavier, and further, when the rotor housing 110 rotates, the centrifugal force applied to the elastic portion 130 is larger, and the elastic portion 130 drives the convex body 150 to be away from the concave portion 160 more easily.
In some specific embodiments, the convex body 150 has a first arc-shaped face 180 and a second arc-shaped face 190, the first arc-shaped face 180 is disposed on one circumferential side of the rotor housing 110, and the second arc-shaped face 190 is disposed on the other circumferential side of the rotor housing 110.
In this embodiment, the first arc-shaped surface 180 and the second arc-shaped surface 190 are disposed on the convex body 150, the first arc-shaped surface 180 is disposed on one side of the rotor housing 110 in the circumferential direction, and the second arc-shaped surface 190 is disposed on the other side of the rotor housing 110 in the circumferential direction, so that the edges of the convex body 150 and the concave portion 160 can be smoothly transited, and the convex body 150 and the concave portion 160 are prevented from being stuck after being matched.
Accordingly, the recess 160 has a third arc-shaped face 200 and a fourth arc-shaped face 210, the third arc-shaped face 200 being disposed on one circumferential side of the stator 100, and the fourth arc-shaped face 210 being disposed on the other circumferential side of the stator 100.
In the present embodiment, the third arc-shaped surface 200 and the fourth arc-shaped surface 210 are disposed on the concave portion 160, the third arc-shaped surface 200 is disposed on one side of the stator 100 in the circumferential direction, and the fourth arc-shaped surface 210 is disposed on the other side of the stator 100 in the circumferential direction, so that the edges of the convex body 150 and the concave portion 160 can be smoothly transited, and therefore, the convex body 150 and the concave portion 160 are prevented from being stuck after being matched.
In some specific embodiments, at least two positioning members 120 are provided, and the two positioning members 120 are circumferentially arranged along the axis of the rotor housing 110.
In the present embodiment, at least two positioning members 120 are provided, and the two positioning members 120 are arranged along the circumferential direction of the axis of the rotor housing 110, so that the time for stopping the rotation of the rotor housing 110 can be reduced.
In some specific embodiments, the stator 100 includes an inner portion 220 located inside the rotor casing 110 and an outer portion 230 located outside the rotor casing 110, and an outer surface of the outer portion 230 is provided with an outer convex ring 240, and the outer convex ring 240 is in fit sealing with an end surface of the rotor casing 110.
In the embodiment, the stator 100 is disposed in the inner portion 220 of the rotor housing 110 and the outer portion 230 of the rotor housing 110, the outer surface of the outer portion 230 is disposed with the outer convex ring 240, and the outer convex ring 240 is sealed with the end surface of the rotor housing 110 in a matching manner, so that the outer convex ring 240 can shield the gap between the stator 100 and the rotor housing 110, prevent foreign matters from entering the gap between the stator 100 and the rotor housing 110, and avoid generating abnormal noise and preventing the rotor housing 110 from rotating.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (9)
1. A positioning device comprising a stator (100) and a rotor housing (110), the rotor shell (110) is provided with a positioning piece (120), the positioning piece (120) comprises an elastic part (130) connected with the rotor shell (110) and a positioning part (140) connected with the elastic part (130), one of the positioning part (140) and the stator (100) is provided with a convex body (150), the other of the positioning part (140) and the stator (100) is provided with a recess (160), the convex body (150) and the concave part (160) are positioned in a matching way, the rotor shell (110) rotates to drive the convex body (150) and the concave part (160) to move away from each other, the elastic part (130) is arranged in an arc shape, one end of the elastic part (130) is connected with the rotor shell (110), the other end of the elastic part (130) extends along the circumferential direction of the rotor housing (110).
2. A positioning device according to claim 1, wherein the end surface of the rotor housing (110) is provided with a convex ring portion (170), and the positioning member (120) is provided on the inner surface of the convex ring portion (170).
3. A positioning device according to claim 1, characterized in that the resilient part (130) is provided as a spring.
4. A positioning device according to claim 1, characterized in that the male body (150) is provided on the positioning part (140) and the female part (160) is provided on the stator (100).
5. A positioning device according to claim 1, characterized in that the convex body (150) has a first arc-shaped face (180) and a second arc-shaped face (190), the first arc-shaped face (180) being arranged on one circumferential side of the rotor housing (110), the second arc-shaped face (190) being arranged on the other circumferential side of the rotor housing (110).
6. A positioning device according to claim 1, characterized in that the recess (160) has a third arc-shaped surface (200) and a fourth arc-shaped surface (210), the third arc-shaped surface (200) being arranged on one circumferential side of the stator (100) and the fourth arc-shaped surface (210) being arranged on the other circumferential side of the stator (100).
7. A positioning device according to claim 1, wherein there are at least two positioning members (120), and two positioning members (120) are arranged along the circumferential direction of the rotor housing (110).
8. A positioning device according to claim 1, wherein the stator (100) comprises an inner portion (220) located inside the rotor housing (110) and an outer portion (230) located outside the rotor housing (110), the outer surface of the outer portion (230) being provided with an outer protruding ring (240), the outer protruding ring (240) being in sealing engagement with the end face of the rotor housing (110).
9. An electrical machine comprising a positioning device as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110429074.7A CN113178969B (en) | 2021-04-21 | 2021-04-21 | Positioning device and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110429074.7A CN113178969B (en) | 2021-04-21 | 2021-04-21 | Positioning device and motor |
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| Publication Number | Publication Date |
|---|---|
| CN113178969A CN113178969A (en) | 2021-07-27 |
| CN113178969B true CN113178969B (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110429074.7A Active CN113178969B (en) | 2021-04-21 | 2021-04-21 | Positioning device and motor |
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| CN (1) | CN113178969B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114652109B (en) * | 2022-04-08 | 2024-03-26 | 广东悍高家居科技有限公司 | Rotary basket and storage cabinet |
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| JP2000110703A (en) * | 1998-10-05 | 2000-04-18 | Yoshio Abe | Fluid motor for introducing fluid also from side of housing |
| JP2003032806A (en) * | 2001-07-17 | 2003-01-31 | Ntn Corp | In-wheel motor driving unit and hybrid system |
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| Publication number | Publication date |
|---|---|
| CN113178969A (en) | 2021-07-27 |
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