CN219872056U - Rotation driving device, aperture device, camera device, and electronic apparatus - Google Patents
Rotation driving device, aperture device, camera device, and electronic apparatus Download PDFInfo
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- CN219872056U CN219872056U CN202321216752.2U CN202321216752U CN219872056U CN 219872056 U CN219872056 U CN 219872056U CN 202321216752 U CN202321216752 U CN 202321216752U CN 219872056 U CN219872056 U CN 219872056U
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Abstract
The present disclosure provides a rotation driving device, an aperture device, a camera device, and an electronic apparatus. The rotation driving device includes: a base; a rotating member configured to be rotatable relative to the base; a piezoelectric member capable of being energized to deform; a friction lever connected to the piezoelectric member and moved by deformation of the piezoelectric member; and a friction contact part fixedly connected to the rotating member, the friction rod making friction contact with the friction contact part, thereby converting a linear tangential motion of the friction contact rod into a rotational motion of the rotating member.
Description
Technical Field
The present disclosure relates to a rotation driving device, an aperture device, a camera device, and an electronic apparatus.
Background
Cameras have been mounted in electronic devices such as smartphones, and many of them are driven by piezoelectric driving techniques. In the course of implementation by piezoelectric technology, the respective camera components are controlled by the movement of the piezoelectric element. However, a typical piezoelectric element cannot provide a sufficiently large driving force, for example, a piezoelectric diaphragm device disclosed in patent document one.
Patent literature one: chinese patent publication No. CN 111399313B.
Disclosure of Invention
In order to solve one of the above technical problems, the present disclosure provides a rotation driving device, an aperture device, a camera device, and an electronic apparatus.
According to one aspect of the present disclosure, there is provided a rotary driving apparatus including:
a base;
a rotating member configured to be rotatable with respect to the base;
a piezoelectric member fixed to the rotary member, capable of being energized so as to be deformed;
a friction lever that is connected to the piezoelectric member and that moves linearly by deformation of the piezoelectric member; and
a friction contact part fixedly connected to the rotating member, the friction rod making friction contact with the friction contact part to convert a linear tangential motion of the friction contact rod into a rotational motion of the rotating member,
wherein the rotation member is rotated by the friction lever and the friction contact portion when the piezoelectric member is energized.
The rotary driving device according to at least one embodiment of the present disclosure, further includes a weight,
the weight is fixedly connected with the rotating member, and a piezoelectric member is connected to the weight.
The rotation driving device according to at least one embodiment of the present disclosure further includes a ball disposed between the base and the rotating member to facilitate relative rotation between the base and the rotating member.
The rotation driving device according to at least one embodiment of the present disclosure further includes a rotating member, the friction lever is clamped between the friction contact portion and the rotating member, and a friction force between the friction lever and the rotating member is adjusted by a friction force adjusting portion.
According to the rotation driving device of at least one embodiment of the present disclosure, the friction force adjusting part includes an adjusting screw screwed to the rotating member through the through hole of the friction contact part, and a spring provided between the head of the adjusting screw and the friction contact part, and the friction force between the friction lever and the rotating member is adjusted by the spring by screwing and unscrewing the adjusting screw.
According to the rotation driving device of at least one embodiment of the present disclosure, the rotating member and the frictional contact portion are provided so as not to rotate with respect to the base, and the rotating member is provided so as to rotate with respect to the base.
According to another aspect of the present disclosure, there is provided an aperture device including:
a rotary drive device according to any one of the preceding claims; and
and the aperture blade is driven by the rotary driving device to adjust the size of the aperture.
According to another aspect of the present disclosure, there is provided a camera device including the aperture device as described above.
According to another aspect of the present disclosure, there is provided an electronic apparatus including the rotation driving device as described above, the rotated member of the electronic apparatus being controlled to rotate by the rotation output member of the rotation driving device.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
Fig. 1 is a structural diagram of a rotary driving device according to an embodiment of the present utility model.
Fig. 2 is a structural diagram of a rotary driving device according to an embodiment of the present utility model.
Fig. 3 is a schematic diagram of an aperture device according to an embodiment of the utility model.
Fig. 4 is a schematic diagram of an aperture device according to an embodiment of the present utility model.
Fig. 5 is a schematic diagram of an aperture device according to an embodiment of the utility model.
Detailed Description
The present disclosure is described in further detail below with reference to the drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant content and not limiting of the present disclosure. It should be further noted that, for convenience of description, only a portion relevant to the present disclosure is shown in the drawings.
In addition, embodiments of the present disclosure and features of the embodiments may be combined with each other without conflict. The technical aspects of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Unless otherwise indicated, the exemplary implementations/embodiments shown are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Thus, unless otherwise indicated, features of the various implementations/embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concepts of the present disclosure.
The use of cross-hatching and/or shading in the drawings is typically used to clarify the boundaries between adjacent components. As such, the presence or absence of cross-hatching or shading does not convey or represent any preference or requirement for a particular material, material property, dimension, proportion, commonality between illustrated components, and/or any other characteristic, attribute, property, etc. of a component, unless indicated. In addition, in the drawings, the size and relative sizes of elements may be exaggerated for clarity and/or descriptive purposes. While the exemplary embodiments may be variously implemented, the specific process sequences may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in reverse order from that described. Moreover, like reference numerals designate like parts.
When an element is referred to as being "on" or "over", "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element, there are no intervening elements present. For this reason, the term "connected" may refer to physical connections, electrical connections, and the like, with or without intermediate components.
For descriptive purposes, the present disclosure may use spatially relative terms such as "under … …," under … …, "" under … …, "" lower, "" above … …, "" upper, "" above … …, "" higher "and" side (e.g., as in "sidewall"), etc., to describe one component's relationship to another (other) component as illustrated in the figures. In addition to the orientations depicted in the drawings, the spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture. For example, if the device in the figures is turned over, elements described as "under" or "beneath" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "below" … … can encompass both an orientation of "above" and "below". Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising," and variations thereof, are used in the present specification, the presence of stated features, integers, steps, operations, elements, components, and/or groups thereof is described, but the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximation terms and not as degree terms, and as such, are used to explain the inherent deviations of measured, calculated, and/or provided values that would be recognized by one of ordinary skill in the art.
It should be noted that, if not conflicting, the technical features in the embodiments of the present utility model may be combined with each other.
According to one embodiment of the present disclosure, a rotary drive device is provided.
Fig. 1 and 2 illustrate a rotary drive device according to an embodiment of the present disclosure. Fig. 4 shows a front view of the rotary drive device of an embodiment, and fig. 5 shows a side view of the rotary drive device.
As shown in fig. 1 and 2, the rotation driving device may include a base 210, a rotation member 220, a piezoelectric member 230, a friction lever 240, and a friction contact portion 250. The base 210 may serve as a component carrying portion. The rotating member 220 may rotate with respect to the base 210.
The effect of controlling the rotation of the rotating member 220 to achieve relative rotation of the base and rotating member is shown in the embodiments of fig. 1 and 2.
The rotation driving means may include a balance weight 260, wherein the balance weight 260 is fixedly coupled to the rotation member 220. The piezoelectric member 230 may be connected to the balance weight 260 and may be provided with an excitation signal. After the excitation signal is provided, the piezoelectric member 230 may perform work, such as electrical deformation, to move. As shown in fig. 1, the movement can be performed in the left-right direction in the figure. One end of the piezoelectric member 230 is connected to the balance weight 260, and the other end of the piezoelectric member 230 is connected to the friction rod 240, so that when the piezoelectric member 230 is deformed, the friction rod 240 is driven to move, for example, to translate in the left-right direction as shown in fig. 1. The friction contact 250 may be provided to interact with the friction lever 240, and the friction lever 240 is in friction contact with the friction contact 250, so that the linear tangential motion of the friction lever 240 may be converted into the rotational motion of the rotating member 220. To achieve this function, the rotating member 220 is provided to be rotatable with respect to the frictional contact portion 250, and a weight, a piezoelectric member, and the like are fixedly mounted to the rotating member 120. Thus, when the piezoelectric member is excited, the friction contact between the friction lever and the friction contact portion is provided, and the piezoelectric member and the like are fixedly connected to the rotary member, so that the rotary member can perform a rotary motion with respect to the friction contact portion and the base. In this embodiment of the present disclosure, the wiping contact portion may not rotate relative to the base.
As shown in fig. 2, at a portion of the friction contact portion 250 that contacts the friction lever 240, the friction contact portion 250 may be in a sheet shape. A rotating member 290 may be provided, and the rotating member 290 and the friction contact portion 250 sandwich the friction lever 240. In addition, the rotating member 290 and the frictional contact 250 may not rotate with respect to the base 210, and the rotating member 220 may rotate with respect to the rotating member 290 and the frictional contact 250. The plane of the rotating member 220 and the plane of the frictional contact 250 may be clamped to both sides of the frictional lever 240, respectively. Further, a friction force adjusting portion 270 may be provided. The friction force adjusting portion 270 is used to adjust the friction force between the friction lever 240 and the friction contact portion 250. The friction force adjusting part 270 may include an adjusting screw 271 and a spring 272. The adjustment screw 271 may be screwed into the rotation member 290 through a through hole provided on the frictional contact portion 250. A spring 272 may be provided between the head of the adjustment screw 271 and the friction contact portion 250, such that an elastic force may be provided to the friction contact portion 250 by the spring 271 by screwing in and screwing out the adjustment screw 271.
After the piezoelectric member 230 is energized, it is deformed to drive the friction rod 240 to translate, and the friction rod 240 has a friction contact force due to the contact of the friction rod 240 with the friction contact portion 250, so that the linear tangential motion of the friction rod 240 can be converted into the rotational motion of the rotating member. And a member such as an aperture may be carried on the rotating member, the size of the aperture being changed by rotation of the rotating member.
According to further embodiments of the present disclosure, balls 280 may be further provided between the rotating member 220 and the base 210, wherein the number of balls may be set to be more than two in order to stably support the rotating member 220 on the base 210.
Fig. 3 to 5 illustrate an aperture device according to one embodiment of the present disclosure. The aperture device can be arranged on the rotating component in various embodiments of the disclosure, and the aperture blade is driven to move by the rotation of the rotating component, so that the purpose of adjusting the aperture size is achieved. As shown in fig. 3, the diaphragm blades are fully closed, fig. 4 shows the diaphragm blades moving to achieve the purpose of half-opening the diaphragm, and fig. 5 shows the diaphragm blades moving to achieve the purpose of full-opening the diaphragm. In the present disclosure, the friction contact portion performs a friction action along the circumferential direction of the friction lever, that is, a force according to the linear tangential direction of the friction lever, and may provide a greater driving force.
According to a further embodiment of the present disclosure, there is also provided a camera device, which may be provided with an aperture device as described above.
The embodiment of the utility model also provides electronic equipment which can comprise the rotation driving device. The electronic device includes a rotated member, wherein the rotated member may be coupled to a rotational output member. The rotated member can be driven to rotate by the rotation of the rotation output member. The electronic device may be in the form of a drone, a camera, an artificial intelligence device, or the like.
In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "a particular example," "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the utility model. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
It will be appreciated by those skilled in the art that the above-described embodiments are merely for clarity of illustration of the disclosure, and are not intended to limit the scope of the disclosure. Other variations or modifications will be apparent to persons skilled in the art from the foregoing disclosure, and such variations or modifications are intended to be within the scope of the present disclosure.
Claims (9)
1. A rotary drive device, comprising:
a base;
a rotating member configured to be rotatable with respect to the base;
a piezoelectric member fixed to the rotary member, capable of being energized so as to be deformed;
a friction lever that is connected to the piezoelectric member and that moves linearly by deformation of the piezoelectric member; and
a friction contact portion fixedly connected to the rotating member, the friction lever making friction contact with the friction contact portion to convert a linear tangential motion of the friction contact portion into a rotational motion of the rotating member,
wherein the rotation member is rotated by the friction lever and the friction contact portion when the piezoelectric member is energized.
2. The rotary drive device according to claim 1, further comprising a counterweight,
the weight is fixedly connected with the rotating member, and a piezoelectric member is connected to the weight.
3. The rotary drive of claim 1, further comprising a ball disposed between the base and the rotary member to facilitate relative rotation between the base and the rotary member.
4. A rotary drive device according to any one of claims 1 to 3, further comprising a rotating member, the friction lever being sandwiched between the friction contact portion and the rotating member, and a friction force between the friction lever and the rotating member being adjusted by a friction force adjusting portion.
5. The rotary driving device according to claim 4, wherein the friction force adjusting portion includes an adjusting screw screwed to the rotating member through the through hole of the friction contact portion, and a spring provided between a head portion of the adjusting screw and the friction contact portion, and the friction force between the friction lever and the rotating member is adjusted by the spring by screwing and unscrewing the adjusting screw.
6. The rotary drive device of claim 5, wherein the rotating member and the friction contact are configured to be non-rotatable relative to the base, and the rotating member is configured to be rotatable relative to the base.
7. An aperture device, comprising:
the rotary drive device according to any one of claims 1 to 6; and
and the aperture blade is driven by the rotary driving device to adjust the size of the aperture.
8. A camera device comprising the aperture device of claim 7.
9. An electronic apparatus comprising the rotation driving device according to any one of claims 1 to 6, wherein a rotated member of the electronic apparatus is controlled to be rotated by a rotation output member of the rotation driving device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022232631816 | 2022-12-06 | ||
| CN202223263181 | 2022-12-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219872056U true CN219872056U (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321216752.2U Active CN219872056U (en) | 2022-12-06 | 2023-05-19 | Rotation driving device, aperture device, camera device, and electronic apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN219872056U (en) |
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2023
- 2023-05-19 CN CN202321216752.2U patent/CN219872056U/en active Active
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