CN107896014B - Motor with a stator having a stator core - Google Patents
Motor with a stator having a stator core Download PDFInfo
- Publication number
- CN107896014B CN107896014B CN201610905073.4A CN201610905073A CN107896014B CN 107896014 B CN107896014 B CN 107896014B CN 201610905073 A CN201610905073 A CN 201610905073A CN 107896014 B CN107896014 B CN 107896014B
- Authority
- CN
- China
- Prior art keywords
- motor
- leakage
- hole
- metal shell
- isolation cover
- 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
- 238000002955 isolation Methods 0.000 claims description 74
- 239000002184 metal Substances 0.000 claims description 62
- 229910052751 metal Inorganic materials 0.000 claims description 62
- 239000000758 substrate Substances 0.000 claims description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 125000006850 spacer group Chemical group 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- 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
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
Abstract
A motor is used for solving the problem that the existing motor has poor effect of blocking water vapor. The motor of the present invention comprises: a housing; a stator disposed inside the housing; a rotor rotatably coupled to the stator, the rotor having a rotation shaft at least one end of which protrudes outside the housing; and a leakage-proof part arranged on the shell, wherein the leakage-proof part is provided with a through hole for the rotating shaft to penetrate through.
Description
Technical Field
The present invention relates to a motor, and more particularly, to a motor capable of improving a water blocking effect.
Background
Referring to fig. 1, a conventional motor 9 is shown, in which a first housing 911 and a second housing 912 of a shielding housing 91 of the conventional motor 9 can be used to cover components of a stator 92 or a permanent magnet 931 of a rotor 93; therefore, the isolation cover 91 can isolate the internal components of the existing motor 9 from the outside to block moisture or foreign matters, and provide good moisture-proof or dust-proof effects for the internal components of the existing motor 9. In addition, the conventional motor 9 further includes a metal shell 94, so that the isolation cover 91 can be further accommodated inside the metal shell 94, and the metal shell 94 provides better structural strength and protection effect.
However, the rotor 93 of the conventional motor 9 further includes a rotating shaft 932 in addition to the permanent magnet assembly 931, and the rotating shaft 932 penetrates the first cover 911 of the isolation cover 91 and the metal shell 94 to protrude to the outside of the conventional motor 9 for combining a load. During the operation of the conventional motor 9, the shaft 932 rotates relative to the stator 92, so a gap is formed between the shaft 932 and the first cover 911 or the metal shell 94, so as to prevent the first cover 911 or the metal shell 94 from obstructing the rotation of the shaft 932; therefore, the external moisture is easy to intrude into the existing motor 9 through the aforementioned gap, which causes the moisture blocking effect of the motor 9 to be not ideal, and it is difficult to improve the moisture-proof effect of the existing motor 9.
In view of the above, there is a need for an improved motor.
Disclosure of Invention
In order to solve the above problems, the present invention provides a motor including a leakage-proof member to improve the effect of blocking water vapor.
In the following description of the present invention, directional terms, such as "front", "back", "upper (top)", "lower (bottom)", "inner", "outer", "side", etc., are used for reference, and are only used for assisting the explanation and understanding of the embodiments of the present invention, and are not used to limit the present invention.
The motor of the present invention comprises: a housing; a stator, which is arranged inside the shell; a rotor rotatably coupled to the stator, the rotor having a shaft, at least one end of the shaft protruding outside the housing; and the leakage-proof piece is arranged on the shell and provided with a through hole for the rotating shaft to penetrate through.
Therefore, the motor of the invention can greatly improve the effect of preventing water vapor from entering the motor by arranging the anti-leakage piece, and has the effect of improving the damp-proof effect of the motor.
Wherein, the periphery of the through hole is in micro contact with the rotating shaft; the structure has the effect of improving the damp-proof effect of the motor.
The leakage-proof part comprises a covering part and an outer convex part, the covering part is connected with the shell, the outer convex part is connected with the end face of the covering part and is in an outer convex shape compared with the covering part, and the through hole is formed in the outer convex part; the structure is simple, the manufacturing is convenient, the leakage-proof piece can be ensured not to touch the inner ring piece of the bearing, and the anti-leakage device has the effects of improving the assembling convenience, improving the rotor rotation smoothness and the like.
Wherein, the through hole is arranged at the most convex part of the outer convex part, and the side section shape of the outer convex part is inclined upwards from the part connected with the covering part to the position where the through hole is formed; the structure can ensure that the leakage-proof part does not touch the inner ring part of the bearing, and has the effects of improving the rotating smoothness of the rotor and the like.
Wherein, the thickness of the outer convex part decreases progressively from the position connected with the covering part to the direction of the through hole; the structure ensures that the outer convex part can be in micro contact with the rotating shaft from the thinnest part, and has the effects of improving the rotating smoothness of the rotating shaft and the like.
Wherein, the anti-leakage piece is made of rubber or silica gel.
Wherein, the shell comprises an isolation cover, and the stator is arranged in the isolation cover; the isolation cover is provided with a base plate part, the base plate part extends along the radial direction of the motor, the base plate part is provided with a through hole, the through hole is used for the rotating shaft to penetrate and extend through, and the through hole is opposite to the through hole of the leakage-proof piece in the axial direction of the motor; the structure has the effects of improving the assembly convenience, improving the protection effect on the motor and the like.
Wherein, the stator has at least one bearing, one of which is combined with the rotating shaft and is adjacent to the through hole, and the leakage-proof piece is arranged between the base plate part of the isolation cover and the bearing; the structure enables the leakage-proof piece to have a buffering effect and has the effects of improving the rotation smoothness of the rotor and the like.
The bearing is provided with an inner ring piece and an outer ring piece, the inner ring piece is combined with the rotating shaft, and the aperture of the through hole is larger than or equal to the inner diameter of the outer ring piece; the structure can ensure that the base plate part of the isolation cover and the leakage-proof part can not touch the inner ring part, and has the effects of improving the rotation smoothness of the rotor and the like.
Wherein the aperture of the through hole is smaller than the outer diameter of the outer ring piece; so as to ensure that the leakage-proof member can be firmly combined with the isolation cover.
The shell also comprises a metal shell, and the isolation cover is arranged inside the metal shell; the structure has the effects of improving the protection effect on the isolation cover and the like.
Or, the shell also comprises a metal shell, the isolation cover is arranged inside the metal shell, and the leakage-proof piece is arranged between the base plate part of the isolation cover and the metal shell; the structure is simple and easy, is convenient to assemble, and has the effects of improving the convenience of assembly and the like.
Wherein, the part of the leakage-proof piece between the substrate part and the metal shell has a thickness, and the distance between the substrate part and the metal shell is less than or equal to the thickness; the structure enables the base plate part and the metal shell to clamp the leakage-proof piece together, and has the effects of preventing the leakage-proof piece from rotating relative to the isolation cover and the like.
Wherein, the part of the leakage-proof piece between the substrate part and the metal shell has a thickness, and the distance between the substrate part and the metal shell is larger than the thickness; the structure has the effects of improving the assembly convenience and the like.
Wherein, the isolation cover is provided with a first positioning part, the leakage-proof piece is provided with a second positioning part, and the first positioning part and the second positioning part are oppositely combined in the axial direction of the motor; the structure has the efficacy of preventing the leakage-proof piece from rotating relative to the isolation cover and the like.
The isolation cover is provided with a third positioning part, the metal shell is provided with a fourth positioning part, and the third positioning part and the fourth positioning part are oppositely combined in the axial direction of the motor; the structure has the efficacy of preventing the leakage-proof piece from rotating relative to the isolation cover and the like.
The stator is provided with at least one bearing, one bearing is adjacent to the through hole, the bearing is provided with an inner ring piece and an outer ring piece, the inner ring piece is combined with the rotating shaft, and the aperture of the through hole is larger than or equal to the inner diameter of the outer ring piece; the structure can ensure that the base plate part of the isolation cover and the leakage-proof part can not touch the inner ring part, and has the effects of improving the rotation smoothness of the rotor and the like.
Wherein the aperture of the through hole is smaller than the outer diameter of the outer ring piece; so as to ensure that the leakage-proof member can be firmly combined with the isolation cover.
The invention has the beneficial effects that:
the motor of the invention has the advantages that by arranging the anti-leakage piece, water vapor is difficult to enter the motor through the gap between the rotating shaft and the shell, and the moisture-proof effect of the motor is greatly improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1: a schematic structure of a conventional motor.
FIG. 2: the first embodiment of the present invention is a schematic three-dimensional exploded structure.
FIG. 3: the side section structure of the first embodiment of the invention is schematically shown.
FIG. 4: a schematic side-sectional view of another usage state of the first embodiment of the present invention.
FIG. 5: a schematic side-sectional view of a further use state of the first embodiment of the present invention.
FIG. 6: the second embodiment of the present invention is a schematic three-dimensional exploded structure.
FIG. 7: a schematic side-sectional structure of a second embodiment of the present invention.
FIG. 8: a schematic side sectional structure view of another embodiment of the metal shell according to the second embodiment of the present invention.
FIG. 9: the third embodiment of the present invention is a schematic three-dimensional exploded structure.
FIG. 10: the third embodiment of the present invention is a schematic three-dimensional exploded structure.
FIG. 11: a schematic side-sectional structure of a fourth embodiment of the present invention.
Description of the reference numerals
1 outer cover
11 isolation cage 11a first cage
111 substrate part 112 perforation
113 surrounding the peripheral wall 114 to form a first positioning portion
115 third positioning part 12 metal shell
12a first housing 12b second housing
121 open hole 122 fourth positioning part
2 stator
21 iron core 22 bearing
22a inner ring member 22b outer ring member
3 rotor
31 shaft 32 permanent magnet group
4 leakage-proof piece
41 through hole 42 second positioning part
D1 inside diameter D2 outside diameter
H thickness H spacing
[ Prior Art ]
9 Motor
91 isolating cover 911 first cover body
912 second cover 92 stator
93 rotor 931 permanent magnet set
932 a shaft 94 metal shell.
Detailed Description
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below:
referring to fig. 2 and 3, a first embodiment of the motor of the present invention is shown, which generally includes a housing 1, a stator 2, a rotor 3 and a leakage preventing member 4, wherein the stator 2 is disposed inside the housing 1, the rotor 3 is rotatably coupled to the stator 2, and the leakage preventing member 4 is disposed on the housing 1. The motor may be an inner rotor motor or an outer rotor motor, and the present invention is not limited thereto; the present embodiment will be described below by taking an inner rotor motor as an example, but is not limited thereto.
The housing 1 may include a shielding case 11 and a metal shell 12, the shielding case 11 is disposed inside the metal shell 12, and the stator 2 is disposed inside the shielding case 11; accordingly, the motor can be assembled and positioned by the stator 2 and the rotor 3 through the isolation cover 11, and the metal shell 12 with better structural strength is used for providing a protection effect, so that the motor is not easy to damage. The isolation cover 11 may be made of an insulating material, such as plastic, so as to prevent the leakage current caused by the conduction of the current between the stator 2 and the metal shell 12.
In detail, the isolation cover 11 can be designed into various structures for assembling and positioning the stator 2 and the rotor 3, the invention does not limit the isolation cover 11 to be divided into several parts, nor the shape and structure of each part, and those skilled in the art can adjust the structure according to the use requirement; the isolation cover 11 preferably has a substrate portion 111 extending along the radial direction of the motor, and the substrate portion 111 is provided with a through hole 112, the through hole 112 is used for a rotating shaft 31 of the rotor 3 to pass through, so that at least one end of the rotating shaft 31 protrudes outside the housing 1.
For example, but not limiting to the invention, one end of the rotating shaft 31 of the embodiment protrudes outside the housing 1, and the other end thereof penetrates inside the housing 1; the isolation cover 11 of the present embodiment includes a first cover 11a, a spacer 11b and a second cover 11c, which are combined with each other, the base plate 111 is a part of the first cover 11a, the periphery of the base plate 111 is further connected to an annular wall 113, the annular wall 113 extends from the base plate 111 toward the second cover 11c along the axial direction of the motor, so that the first cover 11a is a hollow cover with a substantially inverted-u-shaped cross section in the cross-sectional direction shown in fig. 3. The first cover 11a is joined to the spacer 11b through the annular peripheral wall 113 so that the spacer 11b substantially faces the substrate 111, and the second cover 11c is joined to the spacer 11b from the other surface. The first cover 11a, the spacing member 11b and the second cover 11c can be combined together by locking, snapping, tight fitting, screwing or joggling, and the invention is not limited thereto.
The combination manner of the metal shell 12 and the isolation cover 11 is not limited, the metal shell 12 of the embodiment includes a first shell 12a and a second shell 12b, the first shell 12a is a hollow cylinder with at least one end having an opening, in the embodiment, two ends of the first shell 12a are selected to form an opening respectively, and the second cover 11c of the isolation cover 11 seals one of the openings of the first shell 12a, so that the first shell 12a forms an opening only at the first cover 11a of the isolation cover 11. The second casing 12b can form a sealing cover to be combined with the open end of the first casing 12a to seal the open end of the first casing 12a, so that the assembled isolation cover 11 can be sealed inside the metal shell 12, and the metal shell 12 provides a good protection effect for the isolation cover 11. The second casing 12b further has an opening 121, the opening 121 is opposite to the through hole 112 of the isolation cover 11 in the axial direction of the motor, so that the rotating shaft 31 of the rotor 3 can pass through the opening; the aperture of the opening 121 and the through hole 112 of the isolation cover 11 are larger than the diameter of the rotating shaft 31 of the rotor 3, so a gap is formed between the rotating shaft 31 and the isolation cover 11 and the metal shell 12.
The stator 2 comprises an iron core 21, and the iron core 21 is combined inside the isolation cover 11; that is, the core 21 may be disposed between the first cover 11a and the spacer 11b of the shield cover 11, so that the stator 2 is completely covered by the first cover 11a and the spacer 11 b. The stator 2 is further provided with two bearings 22 for coupling with the rotating shaft 31 of the rotor 3, wherein one bearing 22 is disposed on the base plate portion 111 of the shielding case 11 and adjacent to the through hole 112, and the other bearing 22 is disposed on the spacer 11 b. The rotor 3 is provided with a permanent magnet set 32 inside the isolation cover 11, the permanent magnet set 32 is combined with the periphery of the rotating shaft 31, and the permanent magnet set 32 is positioned between the two bearings 22 in the axial direction of the motor; in the radial direction of the motor, an air gap is formed between the permanent magnet set 32 and the iron core 21 of the stator 2 to form an inner rotor motor. When the inner rotor motor is operated, the iron core 21 can generate magnetic linkage induction with the permanent magnet set 32 after the coil wound on the iron core is electrified, so that the rotating shaft 31 can rotate relative to the iron core 21; the operation principle and the detailed structure of the stator 2 and the rotor 3 should be understood and implemented by those skilled in the art, and therefore, will not be described in detail.
In the present embodiment, the bearing 22 disposed on the base plate portion 111 can be a ball bearing, which has an inner ring member 22a and an outer ring member 22b, and the bearing 22 is coupled to the rotating shaft 31 of the rotor 3 through the inner ring member 22 a. To ensure the smooth rotation of the rotor 3, it is preferable to make the aperture of the through hole 112 of the isolation cover 11 greater than or equal to the inner diameter D1 of the outer ring 22b of the bearing 22, so as to ensure that neither the substrate portion 111 of the isolation cover 11 nor the leakage-proof member 4 will contact the inner ring 22a, which is helpful to improve the smooth rotation of the rotor 3; in addition, the diameter of the through hole 112 is preferably smaller than the outer diameter D2 of the outer ring 22b to ensure that the leak preventer 4 can be firmly combined with the isolation cover 11.
The anti-leaking member 4 can be made of rubber, silica gel or other flexible and waterproof materials. The anti-leaking member 4 is disposed on the housing 1, the anti-leaking member 4 has a through hole 41, the through hole 41 is opposite to the through hole 112 of the isolation cover 11 and the opening 121 of the metal shell 12 in the axial direction of the motor, so that the rotating shaft 31 can pass through the through hole; in this way, even if there is a gap between the rotating shaft 31 and the shielding case 11 or the metal shell 12, the leakage-proof member 4 can effectively prevent moisture from entering the motor through the gap.
The periphery of the through hole 41 is preferably in micro contact with the rotating shaft 31, and the "micro contact" means that the aperture of the through hole 41 of the leakage-proof member 4 is in transition fit (transition fit) with the diameter of the rotating shaft 31, and the transition fit includes the situation that the aperture of the through hole 41 of the leakage-proof member 4 is equal to, slightly smaller than or slightly larger than the diameter of the rotating shaft 31. In detail, when the aperture of the through hole 41 of the leakage-proof member 4 is equal to the width of the rotation shaft 31, the leakage-proof member 4 can just seal the gap; when the aperture of the through hole 41 of the leakage-proof member 4 is slightly smaller than the width of the rotation shaft 31, the leakage-proof member 4 will generate a small deflection deformation so that the leakage-proof member 4 can be attached to the rotation shaft 31 to completely close the gap, because the contact area is small and the leakage-proof member 4 has flexibility, the rotation of the rotation shaft 31 is not hindered; when the aperture of the through hole 41 of the leakage-proof member 4 is slightly larger than the width of the rotating shaft 31, although the gap is not completely closed, the remaining gap is quite small, and the hidden protection can be formed by utilizing the change of the peripheral fluid pressure caused by the rotation of the rotating shaft 31, and the moisture can be prevented from entering the motor through the quite small gap.
In addition, the embodiment can select the leakage-proof member 4 to be a structure including a covering portion 4a and an outer protrusion portion 4b, the leakage-proof member 4 is connected to the housing 1 through the covering portion 4a, the outer protrusion portion 4b is connected to the end surface of the covering portion 4a, and is in a shape of a convex plate compared with the covering portion 4 a; the through hole 41 is formed at the center of the convex portion 4b and is located at the most protruded portion of the convex portion 4b, so that the side cross-sectional shape of the convex portion 4b is inclined upward from the portion where the covering portion 4a is connected to the through hole 41. Moreover, the thickness of the protruding portion 4b is set to decrease toward the through hole 41, so that the protruding portion 4b can slightly contact the rotating shaft 31 from the thinnest portion, thereby reducing the resistance to the rotating shaft 31 and improving the smooth rotation of the rotating shaft 31.
In addition, the embodiment can also choose to dispose the leakage-proof member 4 between the substrate portion 111 of the isolation cover 11 and the bearing 22 disposed on the substrate portion 111, make the covering portion 4a of the leakage-proof member 4 abut against the outer ring 22b of the bearing 22, raise the outer protrusion 4b of the leakage-proof member 4 without contacting the inner ring 22a of the bearing 22, and the leakage-proof member 4 slightly contacts the rotating shaft 31 from the periphery of the through hole 41. Accordingly, the motor of the present invention not only has the above-mentioned moisture-proof effect, but also has the buffering effect of the leakage-proof member 4, and the leakage-proof member 4 absorbs the vibration to improve the stability of the bearing 22, thereby improving the smoothness of the rotation of the rotor 3.
Referring to fig. 4, the first embodiment of the motor of the present invention may also be provided without the aforementioned metal shell 12 (shown in fig. 3); that is, the motor is assembled and positioned by the isolation cover 11 of the housing 1 for the stator 2 and the rotor 3, and provides protection effect for the permanent magnet set 32 of the stator 2 and the rotor 3, and the anti-leakage element 4 is matched to improve the damp-proof effect of the motor. Therefore, the components of the motor can be simplified, the manufacturing cost can be reduced, and the assembly efficiency can be improved. In addition, referring to fig. 5, the spacer 11b (shown in fig. 3) of the isolation cover 11 of the motor may be further omitted, and the other bearing 22 is replaced with the second cover 11c, so as to simplify the components of the motor, and achieve the purposes of reducing the manufacturing cost and improving the assembly efficiency.
Referring to fig. 6 and 7, a second embodiment of the motor of the present invention is shown, which is substantially the same as the first embodiment, and mainly differs therefrom in that: in the second embodiment of the present invention, the leak preventer 4 is selectively provided between the substrate portion 111 of the insulating cover 11 and the metal case 12.
In detail, the covering portion 4a of the leakage preventing member 4 between the substrate portion 111 and the metal shell 12 has a thickness H (as shown in fig. 6), and the distance H (as shown in fig. 7) between the substrate portion 111 and the metal shell 12 can be smaller than or equal to the thickness H, so that the covering portion 4a of the leakage preventing member 4 can be clamped by the substrate portion 111 and the metal shell 12; alternatively, the distance H between the substrate portion 111 and the metal case 12 may be larger than the thickness H, so that the covering portion 4a of the leak preventer 4 is only limited between the substrate portion 111 and the metal case 12. In other words, the isolation cover 11 and the metal shell 12 can jointly clamp the anti-leakage element 4, or only the anti-leakage element 4 is limited between the isolation cover 11 and the metal shell 12, which is not limited in the present invention.
It should be noted that in the embodiment shown in fig. 3 and 7, the first shell 12a of the metal shell 12 forms an open end only at the first cover 11a of the isolation cover 11, while in the embodiment shown in fig. 8, the first shell 12a may form an open end at the first cover 11a and the second cover 11c of the isolation cover 11, respectively, and the metal shell 12 has two second shells 12b, so that the two second shells 12b are combined and close the two open ends of the first shell 12a, respectively; the second housing 12b adjacent to the substrate portion 111 of the isolation cover 11 is provided with the above-mentioned opening 121, so that the rotating shaft 31 can extend to the outside of the metal shell 12.
In addition, in other use states, the first shell 12a of the metal shell 12 may be in a shape of a reversed U-shaped cylinder having an open end and a closed end, so that the first cover 11a, the spacer 11b, and the second cover 11c of the isolation cover 11 are inserted into the first shell 12a, and the second shell 12b with the opening 121 is combined with and closes the open end of the first shell 12a, so that the isolation cover 11 can be completely accommodated in the metal shell 12. Or conversely, the opening 121 is disposed at the closed end of the first cylindrical housing 12a, and after the isolation cover 11 is placed inside the first housing 12a, the second housing 12b is combined with and closes the open end of the first housing 12 a. Or, the first casing 12a and the second casing 12b may be respectively formed into an n-shaped cylinder, and the open end of the first casing 12a and the open end of the second casing 12b are opposite to each other to be combined with each other, and the first casing 12a and the second casing 12b jointly cover the isolation cover 11. It should be noted that the shield 11 of the present embodiment may also be configured similar to the structure shown in fig. 5, i.e. the spacer 11b (indicated in fig. 8) of the shield 11 is omitted, and the other bearing 22 is replaced with the second cover 11c, so as to simplify the components of the motor, and achieve the purposes of reducing the manufacturing cost and improving the assembly efficiency.
Referring to fig. 9, a third embodiment of the motor of the present invention is shown, which is substantially the same as the second embodiment described above, and mainly differs therefrom in that: the isolation cover 11 and the leakage-proof member 4 of the third embodiment of the present invention are provided with positioning structures to prevent the two from rotating relatively.
In detail, the distance H between the substrate portion 111 and the metal shell 12 of the isolation cover 11 of the present embodiment is greater than the thickness H of the covering portion 4a of the leakage-proof member 4, so that the covering portion 4a of the leakage-proof member 4 is limited between the isolation cover 11 and the metal shell 12. The isolation cover 11 has a first positioning portion 114, the covering portion 4a of the leakage-proof member 4 has a second positioning portion 42, and the first positioning portion 114 and the second positioning portion 42 are oppositely combined in the axial direction of the motor. For example, the first positioning portion 114 can be a non-circular protrusion (e.g., a protrusion with any geometric shape such as a polygon, an ellipse, a semicircle or a star), and the second positioning portion 42 can be a receiving groove with a corresponding shape, or vice versa, so that the two parts can be engaged with each other to prevent the rotation of the anti-leaking member 4 relative to the shielding case 11.
Alternatively, referring to fig. 10 and 11, a fourth embodiment of the motor of the present invention is shown, in which a positioning structure is disposed on the isolation cover 11 and the metal shell 12 to achieve the purpose of preventing the anti-leakage member 4 from rotating relative to the isolation cover 11.
In detail, the isolation cover 11 is provided with a third positioning portion 115, the metal shell 12 is provided with a fourth positioning portion 122, and the third positioning portion 115 and the fourth positioning portion 122 are oppositely combined in the axial direction of the motor. For example, the third positioning portion 115 can be a groove, and the fourth positioning portion 122 can be a corresponding bump, or vice versa, and the flexibility of the anti-leakage member 4 is utilized to make the covering portion 4a of the anti-leakage member 4 partially press against and deform after the isolation cover 11 and the metal shell 12 are combined relatively, so as to achieve the purpose of preventing the anti-leakage member 4 from rotating relative to the isolation cover 11.
It should be noted that, when the distance H between the substrate portion 111 of the isolation cover 11 and the metal shell 12 is equal to or less than the thickness H of the covering portion 4a of the anti-leakage member 4, so that the anti-leakage member 4 is clamped by the isolation cover 11 and the metal shell 12 together, even if the positioning structure is not provided, the anti-leakage member 4 can still be prevented from rotating relative to the isolation cover 11.
In addition, although the above embodiments of the present invention all refer to a motor in which one end of the rotating shaft 31 protrudes outside the housing 1 and the other end thereof penetrates inside the housing 1, the present invention also covers a motor in which both ends of the rotating shaft 31 protrude outside the housing 1, as long as two anti-leakage elements 4 are disposed on the housing 1, which can be understood by those skilled in the art.
In summary, the motor of the present invention, by providing the anti-leakage element, the moisture is difficult to enter the motor through the gap between the rotating shaft and the housing, and the moisture-proof effect of the motor is greatly improved.
Claims (14)
1. A motor, characterized in that it comprises:
a housing;
a stator disposed within the housing;
a rotor rotatably coupled to the stator, the rotor having a rotation shaft at least one end of which protrudes outside the housing; and
the leakage-proof part comprises a covering part and an outer convex part, the leakage-proof part is connected with the shell through the covering part, the outer convex part is connected with the end face of the covering part and is in an outer convex shape compared with the covering part, the outer convex part is provided with a through hole for the rotating shaft to penetrate through, the thickness of the outer convex part is gradually reduced from the connection with the covering part to the direction of the through hole, and the outer convex part is in micro contact with the rotating shaft from the thinnest part; the through hole is arranged at the most convex part of the outer convex part, and the side section shape of the outer convex part is inclined upwards from the part connected with the covering part to the position where the through hole is formed.
2. The motor of claim 1, wherein: the leakage-proof member is made of rubber or silica gel.
3. The motor according to any one of claims 1 to 2, wherein: the shell comprises an isolation cover, and the stator is arranged inside the isolation cover; the isolation cover is provided with a base plate part, the base plate part extends along the radial direction of the motor, the base plate part is provided with a through hole, the through hole is used for the rotating shaft to penetrate and extend through, and the through hole is opposite to the through hole of the leakage-proof piece in the axial direction of the motor.
4. The motor of claim 3, wherein: the stator has at least one bearing, one of which is combined with the rotating shaft and is adjacent to the through hole, and the leakage-proof piece is arranged between the base plate part of the isolation cover and the bearing.
5. The motor of claim 4, wherein: the bearing is provided with an inner ring piece and an outer ring piece, the bearing is combined with the rotating shaft through the inner ring piece, and the aperture of the through hole is larger than or equal to the inner diameter of the outer ring piece.
6. The motor of claim 5, wherein: the bore diameter of the through hole is smaller than the outer diameter of the outer ring member.
7. The motor of claim 4, wherein: the shell also comprises a metal shell, and the isolation cover is arranged inside the metal shell.
8. The motor of claim 3, wherein: the shell further comprises a metal shell, the isolation cover is arranged inside the metal shell, and the leakage-proof piece is arranged between the base plate portion of the isolation cover and the metal shell.
9. The motor of claim 8, wherein: the part of the leakage-proof piece between the substrate part and the metal shell has a thickness, and the distance between the substrate part and the metal shell is smaller than or equal to the thickness.
10. The motor of claim 8, wherein: the part of the leakage-proof piece between the base plate part and the metal shell is provided with a thickness, and the distance between the base plate part and the metal shell is larger than the thickness.
11. The motor of claim 10, wherein: the isolation cover is provided with a first positioning part, the leakage-proof part is provided with a second positioning part, and the first positioning part and the second positioning part are oppositely combined in the axial direction of the motor.
12. The motor of claim 10, wherein: the isolation cover is provided with a third positioning part, the metal shell is provided with a fourth positioning part, and the third positioning part and the fourth positioning part are oppositely combined in the axial direction of the motor.
13. The motor of claim 8, wherein: the stator is provided with at least one bearing, one bearing is adjacent to the through hole, the bearing is provided with an inner ring piece and an outer ring piece, the inner ring piece is combined with the rotating shaft, and the aperture of the through hole is larger than or equal to the inner diameter of the outer ring piece.
14. The motor of claim 13, wherein: the bore diameter of the through hole is smaller than the outer diameter of the outer ring member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105131914A TWI605670B (en) | 2016-10-03 | 2016-10-03 | Motor |
| TW105131914 | 2016-10-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107896014A CN107896014A (en) | 2018-04-10 |
| CN107896014B true CN107896014B (en) | 2020-10-13 |
Family
ID=61023182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610905073.4A Active CN107896014B (en) | 2016-10-03 | 2016-10-18 | Motor with a stator having a stator core |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107896014B (en) |
| TW (1) | TWI605670B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI659593B (en) * | 2018-05-11 | 2019-05-11 | 建準電機工業股份有限公司 | Motor |
| TWI694662B (en) * | 2018-07-23 | 2020-05-21 | 大陸商昆山廣興電子有限公司 | Motor and its rotor |
| TWI705644B (en) * | 2019-05-17 | 2020-09-21 | 大青節能科技股份有限公司 | Motor with waterproof structure |
| TWI744077B (en) * | 2020-11-06 | 2021-10-21 | 大青節能科技股份有限公司 | Waterproof motor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201947096U (en) * | 2010-12-31 | 2011-08-24 | 深圳市春天模型电子有限公司 | Steering gear shell rotary shaft hole waterproof structure |
| CN105634182A (en) * | 2014-10-16 | 2016-06-01 | 建准电机工业股份有限公司 | Motor with a stator having a stator core |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11356001A (en) * | 1998-06-09 | 1999-12-24 | Aichi Electric Co Ltd | Bearing device of motor |
| JP4331989B2 (en) * | 2003-07-24 | 2009-09-16 | 三菱電機株式会社 | Geared motor |
| TW201012033A (en) * | 2008-09-12 | 2010-03-16 | Formosa Seiko Electronic Co Ltd | Waterproof device of motor |
| CN205336017U (en) * | 2016-01-22 | 2016-06-22 | 广州市白云清洁用品有限公司 | Motor dustproof and waterproof structure and motor thereof |
-
2016
- 2016-10-03 TW TW105131914A patent/TWI605670B/en active
- 2016-10-18 CN CN201610905073.4A patent/CN107896014B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201947096U (en) * | 2010-12-31 | 2011-08-24 | 深圳市春天模型电子有限公司 | Steering gear shell rotary shaft hole waterproof structure |
| CN105634182A (en) * | 2014-10-16 | 2016-06-01 | 建准电机工业股份有限公司 | Motor with a stator having a stator core |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107896014A (en) | 2018-04-10 |
| TWI605670B (en) | 2017-11-11 |
| TW201815026A (en) | 2018-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107896014B (en) | Motor with a stator having a stator core | |
| KR101463133B1 (en) | Motor-driven compressor | |
| US9605464B2 (en) | Drive device | |
| TWI559656B (en) | External rotor motor | |
| TWI392818B (en) | Vacuum mechanical introduction device | |
| US20140271280A1 (en) | Pump motor | |
| ES2899649T3 (en) | Electric motor | |
| WO2015180329A1 (en) | Motor end cover and plastic packaged motor using same | |
| US10036390B2 (en) | Pump unit | |
| KR20080069382A (en) | Parts for magnet toy | |
| JP2008259370A (en) | Rotary machine | |
| JP6105527B2 (en) | Bearing device and motor | |
| JP5402829B2 (en) | Waterproof motor | |
| US6007308A (en) | Coupling device for a pump impeller | |
| US8674686B2 (en) | Angular position sensor for a rotating shaft | |
| US9909637B2 (en) | Damper device | |
| TWI599151B (en) | Motor | |
| KR102625051B1 (en) | Rotor assembly and Motor having the same | |
| CN219994457U (en) | Multi-way valve | |
| JP6373059B2 (en) | Magnet rotor type motor and pump including the motor | |
| KR101664653B1 (en) | Damper device | |
| CN218564399U (en) | Integrated multi-shaft magnetic fluid sealing device | |
| CN212250620U (en) | Vibration reduction water pump | |
| TWI659594B (en) | Bearing positioning structure and motor including the same | |
| KR200325690Y1 (en) | Sealing for bearing cover in the motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: The new Taiwan China Ya Lu Kaohsiung City No. 30 Lane 296 Applicant after: Sunonwealth Electric Machine Industry Co.,Ltd. Address before: Are China Taiwan Lingya Kaohsiung No. 120 12 floor 1 Applicant before: Sunonwealth Electric Machine Industry Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |