CN210137247U - Driving device and electric product - Google Patents
Driving device and electric product Download PDFInfo
- Publication number
- CN210137247U CN210137247U CN201921222953.7U CN201921222953U CN210137247U CN 210137247 U CN210137247 U CN 210137247U CN 201921222953 U CN201921222953 U CN 201921222953U CN 210137247 U CN210137247 U CN 210137247U
- Authority
- CN
- China
- Prior art keywords
- gear
- gear shaft
- drive device
- axial direction
- wall
- 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.)
- Expired - Fee Related
Links
- 239000002184 metal Substances 0.000 claims description 15
- 238000002360 preparation method Methods 0.000 claims 1
- 239000004519 grease Substances 0.000 abstract description 16
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Images
Landscapes
- General Details Of Gearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
An embodiment of the utility model provides a drive arrangement and electric product, this drive arrangement's motor has the output shaft, this drive arrangement's gear box subassembly has gear box, gear, and this gear has the gear shaft, and this gear box has the support outer wall, this support outer wall along the radial setting of gear shaft, wherein, this support outer wall has the first part that extends in the axial of this gear shaft and with this gear shaft butt, and set up the second part in the radial outside of this gear shaft for this first part, at the surface of one side of this support outer wall towards this drive arrangement's outside, this second part has the part that is close to one side of this drive arrangement's inside than this first part in the axial of this gear shaft. Through the embodiment of the utility model provides a, can prevent that the lubricating grease that overflows from stretching to invade important parts such as the outside control circuit board of drive arrangement.
Description
Technical Field
The embodiment of the utility model provides a relate to the motor field.
Background
In a drive device including a motor and a gear box assembly, the gear box assembly has a gear box and a gear accommodated in the gear box and having a gear shaft and a gear main body rotating around the gear shaft.
Generally, a gear box is composed of two parts, one part is a housing part in which a housing space for housing a gear is formed, the other part is a metal cover part which covers the surface of the gear body at one side in the axial direction of the gear body to form a complete gear box with the housing part, and a gear shaft penetrates the metal cover part and comes into contact with the metal cover part in the radial direction, thereby realizing rotational support of the gear shaft by the metal cover part.
In the gear box having the above-described configuration, grease is generally applied to the surface of the gear main body so that the gear main body can rotate smoothly.
It should be noted that the above background description is only for the sake of clarity and complete description of the technical solutions of the present invention, and is set forth for facilitating understanding of those skilled in the art. These solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present invention.
SUMMERY OF THE UTILITY MODEL
However, the inventors have found that, in the conventional structure, a bent portion bent toward one side of the inside of the gear case in the axial direction is generally formed at a portion where the metal lid portion abuts against the gear shaft; during the rotation of the gear body, grease on the surface of the gear body may overflow from the gap between the metal cover and the gear shaft, and may spread along the bent portion to enter other components connected to the driving device and located outside the driving device, such as a control circuit board, thereby affecting the overall performance of the driving device.
In order to solve at least one of the above problems, the present invention provides a driving device and an electric product.
According to a first aspect of embodiments of the present invention, there is provided a driving device including a motor having an output shaft and a gear box assembly having a gear box, a gear accommodated in the gear box, the gear including a gear shaft extending along a central axis and a gear main body extending in a radial direction centering on the central axis, the output shaft of the motor being engaged with the gear main body, the gear box having a support outer wall provided along the radial direction of the gear shaft, a side of the support outer wall facing an inside of the gear box being provided with the gear main body, a side of the support outer wall facing an outside of the gear box being provided with an external device connected with the driving device,
wherein the support outer wall has a first portion extending in the axial direction of the gear shaft and abutting against the gear shaft, and a second portion provided radially outward of the gear shaft with respect to the first portion, the second portion having a portion closer to the inside of the drive device than the first portion in the axial direction of the gear shaft on a surface of the support outer wall on a side toward the outside of the drive device in the axial direction of the gear shaft.
According to a second aspect of embodiments of the present invention, there is provided an electrical product, wherein the electrical product has the driving device as described in the first aspect above.
The embodiment of the utility model provides an one of the beneficial effect lies in: the structure of the supporting outer wall can prevent the overflowed grease from spreading and entering important components such as a control circuit board and the like outside the driving device.
Specific embodiments of the present invention are disclosed in detail with reference to the following description and the accompanying drawings, which specify the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the present invention are not so limited in scope. The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic view of a drive device according to embodiment 1 of the present invention;
FIG. 2 is a partial enlarged view of the dashed line box A of FIG. 1;
figure 3 is a schematic view of another embodiment of a second portion of a support outer wall of example 1 of the present invention;
fig. 4 is another schematic view of the driving device according to embodiment 1 of the present invention.
Detailed Description
The foregoing and other features of the invention will become apparent from the following description taken in conjunction with the accompanying drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the embodiments in which the principles of the invention may be employed, it being understood that the invention is not limited to the embodiments described, but, on the contrary, is intended to cover all modifications, variations and equivalents falling within the scope of the appended claims.
In the embodiments of the present invention, the terms "first", "second", and the like are used for distinguishing different elements from each other in a descriptive sense, but do not denote any spatial arrangement, temporal order, or the like of the elements, and the elements should not be limited by these terms. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising," "including," "having," and the like, refer to the presence of stated features, elements, components, and do not preclude the presence or addition of one or more other features, elements, components, and elements.
In the embodiments of the present invention, the singular forms "a", "an", and the like include the plural forms and should be interpreted broadly as "a" or "an" and not limited to the meaning of "a" or "an"; furthermore, the term "comprising" should be understood to include both the singular and the plural, unless the context clearly dictates otherwise. Further, the term "according to" should be understood as "at least partially according to … …," and the term "based on" should be understood as "based at least partially on … …," unless the context clearly dictates otherwise.
In the following description of the present invention, for the sake of convenience of explanation, a direction extending along or parallel to the central axis of the gear shaft of the gear box assembly of the drive device is referred to as "axial direction", a radial direction centering on the central axis of the gear shaft is referred to as "radial direction", and a direction surrounding the central axis of the gear shaft is referred to as "circumferential direction", but this is for the sake of convenience of explanation and does not limit the orientation of the drive device when used or manufactured.
Example 1
The embodiment of the utility model provides a driving device.
Fig. 1 is a schematic view of a drive device according to embodiment 1 of the present invention; fig. 2 is a partially enlarged view of a dotted line frame a of fig. 1.
As shown in fig. 1 and 2, the drive device 10 includes a motor 11 and a gear box assembly 12, the motor 11 has an output shaft 111, the gear box assembly 12 has a gear box 121, a gear 122 accommodated in the gear box 121, the gear 122 includes a gear shaft 1221 extending along a central axis OO ', and a gear body 1222 extending in a radial direction centering on the central axis OO', and the output shaft 111 of the motor 11 is engaged with the gear body 1222.
Among them, the gear case 121 has a support outer wall 124, the support outer wall 124 is disposed along a radial direction (e.g., a horizontal direction in fig. 1 and 2) of the gear shaft 1221, a gear body 1222 is disposed on a side of the support outer wall 124 facing an inside of the gear case 121, and an external device (not shown) connected to the driving device 10 is disposed on a side of the support outer wall 124 facing an outside of the gear case 121.
In the embodiment of the present invention, as shown in fig. 1 and 2, the support outer wall 124 has a first portion 1241 extending in the axial direction of the gear shaft 1221 (e.g., the vertical direction in fig. 1 and 2) and abutting against the gear shaft 1221, and a second portion 1242 disposed radially outside the gear shaft 1221 with respect to the first portion 1241, and, in a surface F1 (e.g., the lower surface in fig. 1 and 2) of the support outer wall 124 on a side facing the outside of the driving device 10 in the axial direction of the gear shaft 1221, the second portion 1242 has a portion closer to the side of the inside of the driving device 10 than the first portion 1241 in the axial direction of the gear shaft 1221.
That is, the second portion 1242 of the support outer wall 124 is radially outward of the first portion 1241 with respect to the gear shaft 1221, and at least a part of the second portion 1242 is axially upward (upward side shown in fig. 1 and 2, i.e., a side closer to the inside of the gear case 121) than the first portion 1241 in the axial direction of the gear shaft 1221.
Thus, when the grease applied to the gear 122 (gear main body 1222) overflows along the gap between the support outer wall 124 and the gear shaft 1221, the grease does not spread and intrude into important parts such as a control circuit board outside the drive device 10.
In the present embodiment, the structure of the left support outer wall 124 of the gear shaft 1221 in fig. 1 is explained, and the right support outer wall 124 of the gear shaft 1221 has a similar structure to the left support outer wall 124, and also has the first portion and the second portion described above.
In the embodiment of the present invention, fig. 1 and 2 show that the surface F1 of the second part 1242 facing the side of the exterior of the driving device 10 and the surface F2 of the second part 1242 facing the side of the interior of the driving device 10 are protruded toward the side of the interior of the driving device 10, but the present invention is not limited thereto, and for example, only the surface F1 of the second part 1242 may be protruded toward the side of the interior of the driving device 10.
In the embodiment of the present invention, as shown in fig. 1 and 2, the supporting outer wall 124 has a plate shape, and the first portion 1241 is bent toward a side of the outside of the driving device 10 in the axial direction of the gear shaft 1221.
Thus, when the support outer wall 124 is formed, the plate-shaped material can be directly pressed to form the first portion 1241 bent toward the lower side in the axial direction (the lower side shown in fig. 1 and 2), and the forming is simple. Also, since the first portion 1241 is bent toward the axially lower side, the grease does not flow along the surface of the support outer wall 124 on the side toward the outside of the drive device 10 (for example, the lower surface F1 shown in fig. 1 and 2) to other components outside the drive device 10 such as the control circuit board and drip.
In the embodiment of the present invention, as shown in fig. 1 and 2, a surface F2 of the second portion 1242 facing the side of the inside of the driving device 10 has a protrusion 1243 protruding toward the inside of the driving device 10 in the axial direction.
This prevents the grease from flowing to the gear shaft 1221 side along the surface F2 on the side facing the inside of the drive device 10 of the support outer wall 124 and overflowing to the outside.
Figure 3 is a schematic view of another embodiment of the second part of the supporting outer wall of example 1 of the present invention.
In the embodiment of the present invention, as shown in fig. 3, the second portion 1242 may have a step structure on a side toward the outside of the gear case 121, and the step structure is gradually close to a side of the inside of the driving device 10 in the axial direction as it goes toward the radial outside of the gear shaft 1221.
That is, the second portion 1242 of the support outer wall 124 on the left side of the gear shaft 1221 of fig. 3 is gradually stepped upward in a direction indicated by an arrow R1 of fig. 3, and the second portion 1242 of the support outer wall 124 on the right side of the gear shaft 1221 of fig. 3 is gradually stepped upward in a direction indicated by an arrow R2 of fig. 3, in the second portion 1242 of the support outer wall 124.
This makes it difficult for the grease to spread radially outward along the surface of the support outer wall 124 on the side facing the outside of the drive device 10 (for example, the lower surface F1 shown in fig. 1 and 2), and thus facilitates the arrangement of components such as the control circuit board outside the drive device 10.
Fig. 4 is another schematic view of the driving device according to embodiment 1 of the present invention.
In the embodiment of the present invention, as shown in fig. 4, the first portion 1241 of the plate-shaped support outer wall 124 is bent toward one side of the inside of the driving device 10 in the axial direction of the gear shaft 1221, and the second portion 1242 has a recess 1242g recessed toward one side of the inside of the driving device 10 in the axial direction of the gear shaft 1221.
Thus, although the grease that has overflowed along the gap between the support outer wall 124 and the gear shaft 1221 may spread outward in the radial direction, the second portion 1242 is formed with the concave groove 1242g, so that the grease does not spread further to the outside of the drive device 10, and the grease does not enter important components such as a control circuit board outside the drive device 10. In addition, an axial insertion space of the axially extending protection wall that prevents grease from spreading radially outward is also provided by this recess 1242 g.
In the embodiment of the present invention, as shown in fig. 1, the gear shaft 1221 has a resin portion 1223 integrally formed with the gear main body 1222, in addition, the gear shaft 1221 may further include a metal portion 1224 made of metal, and the resin portion 1223 of the gear shaft 1221 is sleeved on the outer periphery of the metal portion 1224, and is in interference fit with the metal portion 1224. However, the present embodiment is not limited to this, and the gear shaft 1221 may have only the metal part 1224 and be interference-fitted to the gear main body 1222 made of resin.
In the embodiment of the present invention, as shown in fig. 1 and 4, the end E1 of the gear shaft 1221 on the side close to the outside of the driving device 10 is closer to the side close to the outside of the driving device 10 in the axial direction of the gear shaft 1221 than the end E2 of the first portion 1241 on the side close to the outside of the driving device 10.
This can further prevent the grease from overflowing to the outside of the drive device 10. However, the present invention is not limited to this, and for example, the end E1 of the gear shaft 1221 near the outside of the driving device 10 may be located at the same axial position as the end E2 of the first portion 1241 near the outside of the driving device 10.
In the embodiment of the present invention, as shown in fig. 1, the gear housing 121 further has an accommodating portion 1211 having an opening K at one axial side of the gear shaft 1221, and the support outer wall 124 is a metal cover covering the opening K. That is, the gear main body 1222 is accommodated in the accommodating portion 1211, and the supporting outer wall 124 formed of a metal cover covers the opening K of the accommodating portion 1211. The metal cover functions as a support outer wall for supporting the rotation of the gear shaft and partitions the drive device 10 from the external device.
In the embodiment of the present invention, as shown in fig. 1, the driving device 10 may further include other components besides the above components, and the structures of the other components of the driving device 10 may refer to the prior art and are not described herein again.
With the structure of the driving device according to the present invention, since the support outer wall 124 is formed into the first portion 1241 and the second portion 1242, at least a part of the second portion 1242 is located axially above the first portion 1241 in the axial direction of the gear shaft 1221, and therefore the grease applied to the gear 122 does not spread and invade into important parts such as a control circuit board outside the driving device 10.
Example 2
The embodiment of the utility model provides an electric product is still provided, this electric product have embodiment 1 drive arrangement, because in embodiment 1, the structure to this drive arrangement has been explained in detail, and its content is contained here, no longer explains herein.
In the present embodiment, the electrical product may be any electrical product including a driving device, for example, an in-vehicle product, such as a sunroof adjustment system, a seat adjustment system, and the like, and may also be a home appliance adjustment system. Alternatively, the motor may be used as a motor in various information devices, industrial devices, and the like.
According to the structure of the driving device in the electric product of the present embodiment, by forming the support outer wall 124 into the first portion 1241 and the second portion 1242, at least a part of the second portion 1242 is located axially above the first portion 1241 in the axial direction of the gear shaft 1221, and therefore the grease applied on the gear 122 does not spread and intrude into important parts such as a control circuit board and the like outside the driving device 10, thereby securing the electric characteristics of the electric product.
The present invention has been described in connection with specific embodiments, but it should be clear to a person skilled in the art that these descriptions are intended to be illustrative and not limiting to the scope of the invention. Various modifications and adaptations of the present invention may occur to those skilled in the art, which are within the spirit and scope of the present invention.
Claims (10)
1. A drive arrangement comprising a motor and a gearbox assembly,
the motor having an output shaft, the gear box assembly having a gear box, a gear accommodated in the gear box, the gear including a gear shaft extending along a central axis, and a gear main body extending in a radial direction centering on the central axis, the output shaft of the motor being engaged with the gear main body,
the gear case has a support outer wall provided along a radial direction of the gear shaft, the gear main body is disposed on a side of the support outer wall facing an inside of the gear case, and an external device connected to the driving device is disposed on a side of the support outer wall facing an outside of the gear case,
it is characterized in that the preparation method is characterized in that,
the support outer wall has a first portion extending in an axial direction of the gear shaft and abutting against the gear shaft, and a second portion disposed radially outward of the gear shaft with respect to the first portion,
the second portion has a portion on a side closer to the inside of the drive device than the first portion in the axial direction of the gear shaft on a surface of the support outer wall on a side facing the outside of the drive device in the axial direction of the gear shaft.
2. The drive device according to claim 1,
the support outer wall has a plate shape, and the first portion is bent toward a side of an outer portion of the driving device in an axial direction of the gear shaft.
3. The drive device according to claim 2,
the surface of the second part on the side facing the interior of the drive device has a projection in the axial direction that projects towards the interior of the drive device.
4. The drive device according to claim 2,
the second portion has a stepped structure on a side toward an outside of the gear case, the stepped structure being toward a radially outer side of the gear shaft, gradually approaching a side toward an inside of the driving device in an axial direction.
5. The drive device according to claim 1,
the second portion has a groove recessed toward one side of the inside of the driving device in the axial direction of the gear shaft.
6. The drive device according to claim 5,
the first portion is bent toward one side of the inside of the driving device in the axial direction of the gear shaft.
7. The drive device according to claim 1,
the gear shaft has a portion integrally formed with the gear body.
8. The drive device according to claim 1,
an end portion of a side of the gear shaft closer to the outside of the driving means is located at the same axial position of the gear shaft as an end portion of a side of the first portion closer to the outside of the driving means, or an end portion of the side of the gear shaft closer to the outside of the driving means is located at a side closer to the outside of the driving means in the axial direction of the gear shaft with respect to an end portion of the side of the first portion closer to the outside of the driving means.
9. The drive device according to claim 1,
the gear case further has a receiving portion having an opening at one side in an axial direction of the gear shaft,
the support outer wall is a metal cover covering the opening.
10. An electrical product, characterized in that it comprises a drive device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921222953.7U CN210137247U (en) | 2019-07-31 | 2019-07-31 | Driving device and electric product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921222953.7U CN210137247U (en) | 2019-07-31 | 2019-07-31 | Driving device and electric product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210137247U true CN210137247U (en) | 2020-03-10 |
Family
ID=69707969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921222953.7U Expired - Fee Related CN210137247U (en) | 2019-07-31 | 2019-07-31 | Driving device and electric product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210137247U (en) |
-
2019
- 2019-07-31 CN CN201921222953.7U patent/CN210137247U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6987336B2 (en) | Electric motor with screwless plug-type mounting | |
| US20100187920A1 (en) | Stator unit with moisture-proof sealing | |
| CN107370270B (en) | Motor and rotating assembly of motor | |
| CN104638820A (en) | Casing and actuator provided with same | |
| CN210137247U (en) | Driving device and electric product | |
| JP2009118702A (en) | Rotary electric machine | |
| CN206977165U (en) | A plastic-sealed stator assembly and its plastic-sealed motor | |
| JP4593832B2 (en) | Motor waterproof structure | |
| JPH0567168U (en) | Motor casing structure | |
| JPH0398434A (en) | Miniature motor | |
| KR20210015960A (en) | Electric actuator | |
| CN110323877A (en) | Reusable motor stator | |
| JP2016032309A (en) | Motor support structure | |
| CN111668972B (en) | Brushless motor and electric product comprising same | |
| JP2805566B2 (en) | Lead wire drawing structure of rotating electric machine | |
| CN221042455U (en) | Motor and electric device | |
| CN114977675A (en) | Motor and drive component | |
| CN214707374U (en) | Brushless motor and unmanned aerial vehicle | |
| CN109854714B (en) | Worm gear unit, gear box, gear motor and electric product comprising gear motor | |
| CN218633532U (en) | Motor | |
| JP4382077B2 (en) | Small motor | |
| CN206250883U (en) | Motor and the electric product comprising the motor | |
| CN112018926A (en) | Motor and electrical equipment comprising same | |
| CN212509453U (en) | Gearbox and motor assembly | |
| US20220320982A1 (en) | Motor and electrical product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200310 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |