CN110425100B - Motor and terminal equipment - Google Patents
Motor and terminal equipment Download PDFInfo
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- CN110425100B CN110425100B CN201910621410.0A CN201910621410A CN110425100B CN 110425100 B CN110425100 B CN 110425100B CN 201910621410 A CN201910621410 A CN 201910621410A CN 110425100 B CN110425100 B CN 110425100B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
- F03G7/065—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like using a shape memory element
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
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Abstract
The invention discloses a motor and terminal equipment, the motor is applied to the terminal equipment, it includes: a connecting member; the first main body piece and the second main body piece are sequentially sleeved on the connecting piece and are in clearance fit with the connecting piece; the deformation body, the deformation body is made by shape memory alloy, the one end of deformation body with first main part is connected, the other end with second main part is connected, works as when the circular telegram of deformation body, deformation body takes place to deform, drives second main part rotates. The deformation body can apply larger acting force to the second main body part, so that the driving function of the motor is realized, the driving mode does not need to rely on a speed changer, and noise generated by gear meshing does not exist. Therefore, the motor operates with less noise.
Description
Technical Field
The invention relates to the technical field of communication equipment, in particular to a motor and terminal equipment.
Background
The motor in the terminal equipment can drive the device to rotate, for example, the camera can realize the purposes of panoramic shooting and the like in a rotating mode, the camera can be connected with the motor, and then the motor drives the camera to rotate by a preset angle.
In the existing mobile terminal, a motor is matched with a speed reducer to obtain enough large driving force, and a plurality of gears are arranged in the speed reducer, so that continuous irregular noise can be generated when the gears are meshed when the motor works. Especially, when the camera needs to record the video, the noise generated by the reducer can be recorded, which results in poor quality of the video.
Disclosure of Invention
The invention discloses a motor and terminal equipment, and aims to solve the problem that the motor of the terminal equipment is high in noise when in work.
In order to solve the problems, the invention adopts the following technical scheme:
a motor applied to terminal equipment comprises:
a connecting member;
the first main body piece and the second main body piece are sequentially sleeved on the connecting piece and are in clearance fit with the connecting piece;
the deformation body, the deformation body is made by shape memory alloy, the one end of deformation body with first main part is connected, the other end with second main part is connected, works as when the circular telegram of deformation body, deformation body takes place to deform, drives second main part rotates.
Preferably, one end of the deformable body is connected with and insulated from the first main body piece, and the other end of the deformable body is connected with and insulated from the second main body piece.
Preferably, the first main body piece and the second main body piece both comprise a disc-shaped portion and a connecting portion, the connecting portion extends out from the edge of the disc-shaped portion, one end of the deformable body is connected with the connecting portion of the first main body piece, and the other end of the deformable body is connected with the connecting portion of the second main body piece.
Preferably, the first main body piece and the second main body piece each include a disc portion and a positioning portion, the disc portion surrounds the positioning portion, the connecting member passes through the positioning portion, the disc portion has a first surface and a second surface which are arranged in a back direction, the positioning portion is protruded relative to the first surface, the positioning portion is recessed relative to the second surface, and the positioning portion of the first main body piece is matched with the positioning portion of the second main body piece.
Preferably, the locating portion is of conical configuration.
Preferably, the motor further comprises:
the third main body piece is sleeved on the connecting piece and is in clearance fit with the connecting piece; the first body piece is positioned between the second body piece and the third body piece, or the second body piece is positioned between the first body piece and the third body piece;
the second deformation body, the second deformation body is made by shape memory alloy, the one end of second deformation body with the second main part is connected, the other end with the third main part is connected, works as when the second deformation body circular telegram, the deformation takes place for the second deformation body, drives the third main part rotates.
Preferably, the second body member includes a disk-shaped portion, a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion extend from an edge of the disk-shaped portion, one end of the deformable body is connected to the connecting portion of the first body member, and the other end of the deformable body is connected to the first connecting portion of the second body member; one end of the second deformable body is connected with the connecting part of the third main body part, and the other end of the second deformable body is connected with the second connecting part of the second main body part.
Preferably, the motor further comprises:
the fourth main body piece is sleeved on the connecting piece and is in clearance fit with the connecting piece; the second body piece is positioned between the first body piece and the fourth body piece;
the third deformation body, the third deformation body is made by shape memory alloy, the one end of third deformation body with fourth main part is connected, the other end with first main part is connected, works as when the third deformation body circular telegram, the deformation takes place for the third deformation body, drives first main part rotates.
A terminal device comprising a functional device and the motor of any one of the above, the first body piece or the second body piece of the motor being connected to the functional device to drive the functional device to rotate.
Preferably, the device further comprises a controller, wherein the controller is electrically connected with the deformation body so as to control the electrifying state of the deformation body.
Preferably, in the direction of the rotation axis of the functional device, a projection of the rotation center of the first main body member or the second main body member coincides with a projection of the rotation center of the functional device.
Preferably, the functional device includes at least one of a camera, a sensor, a fingerprint identification module, a receiver and a light supplement lamp.
The technical scheme adopted by the invention can achieve the following beneficial effects:
in the motor disclosed by the invention, the first main body part and the second main body part can be connected through the deforming body, the deforming body is made of the shape memory alloy, and when the deforming body is electrified, the deforming body can deform to drive the second main body part to rotate. The deformation body can apply larger acting force to the second main body part, so that the driving function of the motor is realized, the driving mode does not need to rely on a speed changer, and noise generated by gear meshing does not exist. Therefore, the motor operates with less noise.
Drawings
The accompanying drawings, which are included to provide a further understanding 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 invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a motor according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a motor at another angle according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a second body member of the motor according to the present invention;
FIG. 4 is a schematic structural diagram of a connecting member of a motor according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a deforming body and a fastener in the motor disclosed by the embodiment of the invention.
Description of reference numerals:
101-a first body piece, 102-a second body piece, 103-a third body piece, 110-a disk-shaped part, 120-a first connecting part, 130-a second connecting part, 140-a connecting hole, 150-a positioning part, 200-a connecting part, 210-a positioning table, 300-a deformation body, 400-a fastener and 500-a second deformation body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 5, an embodiment of the present invention discloses a motor, which can be applied to a terminal device to drive a device of the terminal device to rotate. The motor may include a first body member 101, a second body member 102, a connection member 200, and a transformation body 300.
The first body part 101 or the second body part 102 can be connected to a device to be rotated, thereby driving the device to rotate. The first body member 101 and the second body member 102 are sequentially fitted over the connector 200 and are in clearance fit with the connector 200. The main function of the connecting element 200 is to assemble the first body element 101 and the second body element 102 together, the connecting element 200 may be a column-shaped element, and the two ends of the connecting element may be provided with positioning platforms 210, the positioning platforms 210 are engaged with the first body element 101 or the second body element 102 to prevent the first body element 101 and the second body element 102 from being disengaged from the connecting element 200. The first body member 101 and the second body member 102 can be rotated about the column by clearance fitting the first body member 101 and the second body member 102 with the connector 200.
The deformable body 300 is used for driving the second body member 102 to rotate and is made of shape memory alloy. After the current is applied to the transformation body 300, the temperature of the transformation body 300 will be increased, and when the temperature of the transformation body 300 is increased to the phase transition temperature, the transformation body 300 will be deformed; after the deformation body 300 is powered off, the temperature thereof will be lowered, and then the deformation is restored. One end of the deformable body 300 is connected to the first main body 101, and the other end is connected to the second main body 102, and when the deformable body 300 is powered on, the deformable body 300 deforms to drive the second main body 102 to rotate.
The deformable body 300 can apply a large acting force to the second main body 102, so that the deformable body 300 can reliably drive a device connected with the first main body 101 or the second main body 102 to rotate, and further realize the driving function of the motor, the driving mode does not need to depend on a speed changer, and noise generated by gear engagement does not exist. Therefore, the motor operates with less noise. In addition, after a transmission is omitted, the size of the deformable body 300 is small, and the structure of the deformable body is simple, so that the arrangement of parts in the terminal equipment is more convenient, and the structure of the terminal equipment is simpler.
Optionally, one end of the deformable body 300 is connected and insulated with the first body 101, and the other end is connected and insulated with the second body 102, so that the first body 101 and the second body 102 are not charged when the motor works, thereby improving the safety of the motor. There are many ways to insulate the deformable body 300 from the first body member 101 and the second body member 102, for example, an insulating coating may be added on the surface of the deformable body 300 or the first body member 101 and the second body member 102, or the connection part of the first body member 101 and the second body member 102 with the deformable body 300 may be configured as an insulating structure.
In an alternative embodiment, as shown in fig. 3, the first body member 101 and the second body member 102 may each include a disk portion 110, and the disk portion 110 may be a clearance fit with the connector 200, such that the first body member 101 and the second body member 102 may rotate relative to the connector 200. Alternatively, the disk 110 may be a flat plate.
Further, the first body member 101 and the second body member 102 may further include a connecting portion extending from an edge of the disk portion 110. One end of the deformable body 300 is connected to the connecting portion of the first body member 101, and the other end is connected to the connecting portion of the second body member 102. After the connection part is provided, the transformation body 300 can be more conveniently connected with the first body member 101 and the second body member 102.
Alternatively, the first body member 101 and the second body member 102 may further include a positioning portion 150 in addition to the disc portion 110, the disc portion 110 surrounds the positioning portion 150, and the connection member 200 passes through the positioning portion 150. The disc portion 110 has a first surface and a second surface disposed oppositely, the positioning portion 150 protrudes relative to the first surface, and the positioning portion 150 is recessed relative to the second surface, i.e., the thickness of the positioning portion 150 may be comparable to the thickness of the disc portion 110. The positioning portion 150 of the first body member 101 is engaged with the positioning portion 150 of the second body member 102, so that the first body member 101 and the second body member 102 can be positioned, and the first body member 101 and the second body member 102 are more stable when relatively rotating.
The positioning part 150 may be provided in a cylindrical structure, but in order to improve the positioning effect, the positioning part 150 may be provided in a conical structure. The conical configuration provides better centering and thus achieves the aforementioned objectives.
Of course, the first body piece 101 and the second body piece 102 may include the disc portion 110, the connecting portion, and the positioning portion 150 described above at the same time.
Optionally, the motor further comprises a third body member 103 and a second deforming body 500. Third body member 103 fits over connector 200 and is a clearance fit with connector 200 such that third body member 103 can rotate relative to connector 200. The first body part 101 is located between the second body part 102 and the third body part 103, that is, the first body part 101, the second body part 102 and the third body part 103 are sequentially sleeved on the connecting piece 200; alternatively, the second body member 102 is located between the first body member 101 and the third body member 103, i.e., the second body member 102, the first body member 101 and the third body member 103 are sequentially sleeved on the connecting member 200. The second deformable body 500 is made of shape memory alloy, one end of the second deformable body 500 is connected with the second main body 102, the other end is connected with the third main body 103, and when the second deformable body 500 is powered on, the second deformable body 500 deforms to drive the third main body 103 to rotate. After the third body part 103 and the second deforming body 500 are added, the second body part 102 and the third body part 103 can rotate, and the rotation of the two can obtain larger rotation amplitude after being superposed, so that the rotatable amplitude of the device connected with the motor is larger. Meanwhile, in this solution, the second main body 102 and the third main body 103 connected to the same second deforming body 500 may be adjacent or not, so that the solution does not require the sleeving order of the second main body 102 and the third main body 103 on the connecting member 200, thereby more conveniently realizing the assembly of the motor.
Alternatively, the second body member 102 may specifically include a disk portion 110, a first connecting portion 120 and a second connecting portion 130, wherein the first connecting portion 120 and the second connecting portion 130 extend from an edge of the disk portion 110. The first body piece 101 and the third body piece 103 each comprise a connecting portion. One end of the deformable body 300 is connected with the connecting part of the first body piece 101, and the other end is connected with the first connecting part 120 of the second body piece 102; one end of the second deforming body 500 is connected to the connecting portion of the third body member 103, and the other end is connected to the second connecting portion 130 of the second body member 102. Alternatively, the second connection portion 130 and the first connection portion 120 may overlap. Thus, the heights of the two ends of the second deforming entity 500 are substantially equal in the extending direction of the connecting member 200, and the acting force applied to the third main body element 103 by the second deforming entity 500 after being deformed is substantially parallel to the plane of the disc-shaped portion 110, so that the third main body element 103 can be driven to rotate more effectively, and the precision of the motor is higher.
In a specific embodiment, the first connecting portion 120 and the second connecting portion 130 can be provided with a connecting hole 140, and the fastening member 400 can pass through the connecting hole 140 and be connected with the deformable body 300 and the second deformable body 500, so as to realize the connection between the deformable body 300 and the second deformable body 500 and the first body member 101, the second body member 102 and the third body member 103. The fastening member 400 may be a screw fastening member, the connection hole 140 may be a light hole, and the transformation body 300 may be provided with a screw hole to be engaged with the screw fastening member.
Optionally, the motor may further include a fourth body member and a third transformation body. The fourth body member is fitted over the connector 200 and is in clearance fit with the connector 200 so that the fourth body member can rotate relative to the connector 200. The second body member 102 is located between the first body member 101 and the fourth body member. The third variant is made of shape memory alloy, one end of the third variant is connected with the fourth main body part, and the other end is connected with the first main body part 101, and the first main body part 101 and the fourth main body part which are connected with the same third variant are not adjacent. When the third deformable body is electrified, the third deformable body deforms, and drives the first main body part 101 to rotate. With the addition of the fourth body member and the third variant, the first body member 101 can also be rotated, thereby allowing the device connected to the motor to be rotated to a greater extent.
It should be noted that the number of the first body part 101, the second body part 102, the third body part 103 and the fourth body part included in the motor may be one or more, and may be flexibly selected according to the actual situation, which is not limited herein.
In order to change the rotation angle of the device driven by the motor, the magnitudes of the currents flowing into the deformable body 300, the second deformable body 500 and the third deformable body can be changed, and further the deformation amounts of the deformable body 300, the second deformable body 500 and the third deformable body are changed, so that the rotation angle of the device is changed accordingly.
Alternatively, when the motor further includes the second variation 500 and the third variation, the variation 300, the second variation 500, and the third variation may be sequentially connected in series when designing a connection circuit of the motor. When the setting mode is adopted, the deformation body 300, the second deformation body 500 and the third deformation body are simultaneously electrified or simultaneously powered off, so that the rotation angle of the motor driving device is basically unchanged when the motor drives the device to rotate. In another embodiment, the variant 300 can be connected in series with the second variant 500 and then in parallel with the third variant, or the variant 300 can be connected in series with the third variant and then in parallel with the second variant 500. Or the second variant 500 and the third variant are connected in series and then in parallel with the variant 300. That is to say, the series-parallel connection relationship among the deformable body 300, the second deformable body 500 and the third deformable body can be combined at will, so that when the terminal device is used, different power-on states can be selected according to different conditions, and then the driving device rotates at different rotation angles.
Of course, the above-mentioned ways of changing the magnitude of the current and changing the electrical connection relationship among the deformable body 300, the second deformable body 500, and the third deformable body may also be adopted at the same time, so as to change the rotation angle of the device more flexibly.
In the above embodiments, the deformation body 300, the second deformation body 500, and the third deformation body may be provided in a straight strip structure, an arc structure, a V-shaped structure, or the like. Considering that when the deformable body 300, the second deformable body 500 and the third deformable body are in a V-shaped structure, under the same current, the deformable body 300, the second deformable body 500 and the third deformable body can drive the device to rotate by a larger angle, therefore, in the embodiment of the present invention, it is preferable that at least one of the deformable body 300, the second deformable body 500 and the third deformable body is in a V-shaped structure, so as to reduce power consumption of the terminal device.
Based on the above embodiments, the present invention further discloses a terminal device, which may include a functional device (not shown in the figures) and the motor described in any of the above embodiments, wherein the first body 101 or the second body 102 of the motor is connected to the functional device to drive the functional device to rotate. The terminal device comprises a motor, and the motor realizes the driving function through the deformation of the deformation body, so the driving mode of the motor does not need to rely on a speed changer, and the noise generated by the meshing of gears does not exist. Therefore, the terminal device is less noisy when in operation.
Optionally, the functional device may specifically include at least one of a camera, a sensor, a fingerprint recognition module, a receiver, and a fill-in light. The motor can warp through the deformation body, and then at least one in drive camera, sensor, fingerprint identification module, receiver, the light filling lamp rotates, therefore the drive mode of this motor need not rely on the derailleur, just does not have the noise that produces because of gear engagement yet. Therefore, the noise of devices such as camera, sensor, fingerprint identification module, receiver, light filling lamp during operation is less.
The terminal apparatus may further include a controller (not shown in the drawings) electrically connected to the transformation body 300 to control the power-on state of the transformation body 300 according to the rotation angle of the functional device. Specifically, the controller may adjust the magnitude of the current flowing into the deformable body 300 according to the rotation angle of the functional device, so that the deformation amount of the deformable body 300 is changed, thereby changing the rotation angle of the functional device. Further, when the motor includes the deformable body 300, the second deformable body 500 and the third deformable body, and the deformable body 300, the second deformable body 500 and the third deformable body have a series connection relationship and also have a parallel connection relationship, the controller can control the power-on states of the deformable body 300, the second deformable body 500 and the third deformable body according to the rotation angle of the functional device, and then drive the functional device to generate different rotation angles under different conditions, so as to adapt to the diversified demands of users.
Alternatively, the axis of rotation of the functional device may be on the functional device or external to the functional device. Due to space constraints, the functional device that can be rotated in the terminal equipment usually has an axis of rotation on the functional device, which is essentially the center line of the functional device. Therefore, in the direction of the rotational axis of the functional device, the projection of the rotational center of the first body member 101 or the second body member 102 coincides with the projection of the rotational center of the functional device, so that the rotational axis of the functional device is located on the functional device.
The terminal device disclosed by the embodiment of the invention can be a smart phone, a tablet computer, an electronic book reader or a wearable device. Of course, the terminal device may also be other devices, and the embodiment of the present invention is not limited thereto.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (11)
1. A motor applied to a terminal device, comprising:
a connecting member;
the first main body piece and the second main body piece are sequentially sleeved on the connecting piece and are in clearance fit with the connecting piece, each of the first main body piece and the second main body piece comprises a disc-shaped portion and a positioning portion, the disc-shaped portion surrounds the positioning portion, the connecting piece penetrates through the positioning portion, the disc-shaped portion is provided with a first surface and a second surface which are arranged in a back-to-back mode, the positioning portion protrudes relative to the first surface and is recessed relative to the second surface, and the positioning portion of the first main body piece is matched with the positioning portion of the second main body piece;
the deformable body is made of shape memory alloy, one end of the deformable body is connected with the first main body piece, the other end of the deformable body is connected with the second main body piece, and when the deformable body is electrified, the deformable body deforms to drive the second main body piece to rotate; when the deformation body is powered off, the deformation body restores to deform.
2. The motor of claim 1, wherein one end of the transformation body is connected to and insulated from the first body member, and the other end is connected to and insulated from the second body member.
3. The motor of claim 1, wherein the first body member and the second body member each include the disk portion and a connecting portion extending from an edge of the disk portion, and wherein the deformable body has one end connected to the connecting portion of the first body member and the other end connected to the connecting portion of the second body member.
4. The motor of claim 1, wherein the locator is a conical structure.
5. The motor of claim 1, further comprising:
the third main body piece is sleeved on the connecting piece and is in clearance fit with the connecting piece; the first body piece is positioned between the second body piece and the third body piece, or the second body piece is positioned between the first body piece and the third body piece;
the second deformation body, the second deformation body is made by shape memory alloy, the one end of second deformation body with the second main part is connected, the other end with the third main part is connected, works as when the second deformation body circular telegram, the deformation takes place for the second deformation body, drives the third main part rotates.
6. The motor of claim 5, wherein the second body member includes the disk portion, a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion extend from an edge of the disk portion, one end of the deformation body is connected to the connecting portion of the first body member, and the other end is connected to the first connecting portion of the second body member; one end of the second deformable body is connected with the connecting part of the third main body part, and the other end of the second deformable body is connected with the second connecting part of the second main body part.
7. The motor of claim 5, further comprising:
the fourth main body piece is sleeved on the connecting piece and is in clearance fit with the connecting piece; the second body piece is positioned between the first body piece and the fourth body piece;
the third deformation body, the third deformation body is made by shape memory alloy, the one end of third deformation body with fourth main part is connected, the other end with first main part is connected, works as when the third deformation body circular telegram, the deformation takes place for the third deformation body, drives first main part rotates.
8. Terminal device, characterized in that it comprises a functional means and a motor according to any of claims 1-7, the first body part or the second body part of the motor being connected to the functional means for driving the functional means in rotation.
9. The terminal device according to claim 8, further comprising a controller electrically connected to the transformation body to control an energization state of the transformation body.
10. The terminal device according to claim 8, wherein a projection of a center of rotation of the first body member or the second body member coincides with a projection of a center of rotation of the functional device in a direction in which an axis of rotation of the functional device is located.
11. The terminal device according to any one of claims 8 to 10, wherein the functional device comprises at least one of a camera, a sensor, a fingerprint recognition module, a receiver, and a fill-in light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910621410.0A CN110425100B (en) | 2019-07-10 | 2019-07-10 | Motor and terminal equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910621410.0A CN110425100B (en) | 2019-07-10 | 2019-07-10 | Motor and terminal equipment |
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| CN110425100A CN110425100A (en) | 2019-11-08 |
| CN110425100B true CN110425100B (en) | 2021-07-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| ITTO20030196A1 (en) * | 2003-03-14 | 2004-09-15 | Fiat Ricerche | DISCRETE STEP ROTARY ACTUATOR. |
| GB0606425D0 (en) * | 2006-03-30 | 2006-05-10 | 1 Ltd | Camera lens actuation apparatus |
| US7708478B2 (en) * | 2006-04-13 | 2010-05-04 | Nokia Corporation | Actuator mechanism and a shutter mechanism |
| CN201156687Y (en) * | 2008-02-03 | 2008-11-26 | 惠州市百宏微动技术工业有限公司 | Micro motor speed reducer for image taking monitor |
| EP3184815B1 (en) * | 2015-12-21 | 2018-08-08 | SMR Patents S.à.r.l. | Actuator for a power fold mechanism of a rear view device for a vehicle |
| US10895642B2 (en) * | 2017-10-18 | 2021-01-19 | Tdk Taiwan Corp. | Distance measuring device |
| CN208057328U (en) * | 2018-04-24 | 2018-11-06 | 西安航空学院 | driving device based on SMA |
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