CN113315901B

CN113315901B - Drive assembly, camera assembly and electronic equipment

Info

Publication number: CN113315901B
Application number: CN202110623356.0A
Authority: CN
Inventors: 杨泽; 丁文超
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2022-09-13
Anticipated expiration: 2041-06-04
Also published as: CN113315901A; WO2022253179A1

Abstract

The application discloses drive assembly, subassembly and electronic equipment of making a video recording, drive assembly includes: the carrier is annular, the axes of the base, the cavity and the carrier are collinear or parallel, and the carrier is arranged in the cavity; the driving structure comprises a first magnet and a second magnet, the first magnet is arranged in the base, the second magnet is arranged in the carrier and corresponds to the first magnet, and at least one of the first magnet and the second magnet comprises an electromagnet or an electrified coil; the carrier moves along a first direction under the condition that the first magnet and the second magnet are magnetically attracted; the carrier moves in a second direction with the first and second magnets repelling each other, the first and second directions being along the length of the base, the first and second directions being opposite. The driving assembly is small in size, occupied space is reduced, and lightening and thinning of equipment are facilitated.

Description

Drive assembly, camera assembly and electronic equipment

Technical Field

The application belongs to the technical field of terminals, and particularly relates to a driving assembly, a camera shooting assembly and electronic equipment.

Background

Consumers have higher and higher requirements on portable digital products (such as smart phones and tablet computers), and in order to meet the requirements of consumers on lightness, thinness and convenience of terminal equipment, the terminal equipment is thinner and thinner, and the structural size of an internal camera device is required to be reduced due to the requirement of thinning the equipment size. The focusing motor of the equipment camera has the greatest influence on the size of the camera, and the motor of the existing driving camera is large in size, large in occupied space, not beneficial to lightening and thinning of the equipment and difficult to meet the requirements.

Disclosure of Invention

The embodiment of the application aims to provide a driving assembly, a camera shooting assembly and electronic equipment, and aims to solve the problems that an existing motor for driving a camera is large in size, large in occupied space and not beneficial to light and thin of equipment.

In a first aspect, an embodiment of the present application provides a driving assembly, including:

the device comprises a base, a first clamping piece and a second clamping piece, wherein a cavity extending along the length direction of the base is defined on the base, a first opening communicated with the cavity is formed in the end part of one end of the base, a second opening communicated with the cavity is formed in the end part of the other end of the base, and the base and the cavity are both cylindrical;

the carrier is annular, the axes of the base, the chamber and the carrier are collinear or parallel, the carrier is arranged in the chamber, and the carrier can move along the length direction of the chamber;

the driving structure comprises a first magnet and a second magnet, the first magnet is arranged in the base, the second magnet is arranged in the carrier at a position corresponding to the first magnet, at least one of the first magnet and the second magnet comprises an electromagnet or an electrified coil, and the first magnet and the second magnet can be attracted or repelled magnetically;

the carrier moves in a first direction with the first magnet and the second magnet magnetically attracted;

the carrier moves in a second direction with the first magnet repelling the second magnet, the first and second directions being along a length of the base, and the first and second directions being opposite.

The outer side of the carrier is provided with a first guide groove extending along the axial direction of the carrier, a rolling ball is arranged in the first guide groove and is abutted against the inner side wall of the chamber, and the rolling ball can roll in the first guide groove.

And a second guide groove is formed in the inner side wall of the chamber and corresponds to the first guide groove, part of the rolling ball is arranged in the second guide groove, and the rolling ball can roll in the second guide groove.

The end, far away from the first opening, of the first guide groove is provided with a first limiting piece, and the end, close to the first opening, of the second guide groove is provided with a second limiting piece.

The number of the first guide grooves is multiple, and the first guide grooves are arranged at intervals along the circumferential direction of the carrier.

Wherein the base includes:

a housing defining a chamber therein extending along a length of the housing;

the base, the base with the one end of casing is connected, just first opening set up in on the base.

Wherein the base further comprises:

the limiting plate is arranged at the other end of the shell, the second opening is arranged on the limiting plate, and the radial size of the carrier is larger than that of the first opening and that of the second opening.

Wherein, be equipped with the mounting panel on the base, first magnet is established in the mounting panel, at least part of mounting panel is located in the cavity.

Wherein, be equipped with first draw-in groove on the mounting panel, the mounting panel with be equipped with the backplate between the inside wall of cavity, first magnet is established being close to of backplate one side of mounting panel, first magnet is established in the first draw-in groove.

Wherein, still include the detecting element, the detecting element includes:

a magnet disposed in the carrier;

the Hall sensing chip is arranged on the mounting plate and is close to the protective plate, the Hall sensing chip is arranged in the second clamping groove and detects the position of the magnet or the position of the carrier.

Wherein, still include:

the circuit board, the circuit board with the electro-magnet or the circular telegram coil electricity is connected, the circuit board with hall response chip electricity is connected, the circuit board is established on the mounting panel.

One side of the guard plate, which is far away from the mounting plate, is provided with a magnetic conductive material piece, and the magnetic conductive material piece is close to the first magnet.

In a second aspect, embodiments of the present application provide an image pickup assembly including the driving assembly described in the above embodiments.

Wherein, still include: the camera is arranged on the carrier.

In a third aspect, an embodiment of the present application provides an electronic device, including the camera module described in the foregoing embodiment.

The drive assembly of the embodiment of the application comprises: the device comprises a base, a first clamping piece and a second clamping piece, wherein a cavity extending along the length direction of the base is defined on the base, a first opening communicated with the cavity is formed in the end part of one end of the base, a second opening communicated with the cavity is formed in the end part of the other end of the base, and the base and the cavity are both cylindrical; the carrier is annular, the axes of the base, the chamber and the carrier are collinear or parallel, the carrier is arranged in the chamber, and the carrier can move along the length direction of the chamber; the driving structure comprises a first magnet and a second magnet, the first magnet is arranged in the base, the second magnet is arranged in the carrier at a position corresponding to the first magnet, at least one of the first magnet and the second magnet comprises an electromagnet or an electrified coil, and the first magnet and the second magnet can be attracted or repelled magnetically; the carrier moves in a first direction with the first magnet and the second magnet magnetically attracted; the carrier moves in a second direction with the first magnet repelling the second magnet, the first and second directions being along a length of the base, and the first and second directions being opposite. In the drive assembly of this application, will the base with the cavity sets up to cylindric, the carrier sets up to the ring form, will the base the cavity with the axis of carrier sets up to collineation or parallel, through the cooperation of carrier with the base, reduces the space volume that occupies, is favorable to holistic miniaturization. The carrier is arranged in the cavity, the first magnet is arranged in the base, the second magnet is arranged in the carrier at a position corresponding to the first magnet, the carrier is pushed to move by the magnetic attraction or repulsion of the first magnet and the second magnet, the occupied space of the first magnet and the second magnet is reduced, and the whole volume of the driving assembly is reduced. In the use, can establish the camera on the carrier, drive the camera through the carrier and remove, can realize zooming of camera, be favorable to reducing the whole volume of subassembly of making a video recording, be favorable to the frivolousization of equipment.

Drawings

FIG. 1 is a schematic view of a drive assembly in an embodiment of the present application;

FIG. 2 is an exploded view of the drive assembly of the embodiment of the present application;

FIG. 3 is a schematic view of a second magnet on a carrier;

FIG. 4 is a schematic view of a first magnet on the shield;

FIG. 5 is a schematic view of the mounting plate on the base.

Reference numerals

A carrier 10; a first magnet 11; a second magnet 12;

a ball 20; a first guide groove 21; the second guide groove 22;

a first stopper piece 23; a second stopper piece 24;

a housing 30; a base 31; a limit plate 32; a mounting plate 33;

a first card slot 34; a second card slot 35; a magnet 36; a hall sensing chip 37;

a circuit board 38; a guard plate 39; a magnetically permeable material member 40;

a first opening 41; a second opening 42.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The driving assembly provided by the embodiment of the present application is described in detail by referring to fig. 1 to fig. 5 through a specific embodiment and an application scenario thereof.

As shown in fig. 1 to 3, the driving assembly of the embodiment of the present application includes a base, a carrier 10 and a driving structure, wherein the base defines a chamber extending along a length direction of the base, an end portion of one end of the base has a first opening 41 communicating with the chamber, an end portion of the other end of the base has a second opening 42 communicating with the chamber, and the base and the chamber are cylindrical. The carrier 10 is circular ring-shaped, the axes of the base, the cavity and the carrier 10 can be collinear or parallel, the waste of space when the carrier 10 is matched with the inner side wall of the cavity is reduced, the occupied space volume can be reduced through the matching of the carrier 10 and the base, and the miniaturization of the whole body is facilitated. The carrier 10 may be disposed in the chamber, the carrier 10 may be movable along a length direction of the chamber, and the carrier 10 may be movable along the length direction of the chamber toward the first opening 41 or the second opening 42, wherein the first opening 41 and the second opening 42 may be circular, and centers of the first opening 41 and the second opening 42 may be located on a center line of the chamber. The driving structure may include a first magnet 11 and a second magnet 12, the number of the first magnets 11 may be multiple, such as two, the first magnet 11 may be disposed in the base, and the first magnet 11 may be embedded in the base; the number of the second magnets 12 may be multiple, such as two, the second magnets 12 may be disposed in the carrier 10 at positions corresponding to the first magnets 11, and the second magnets 12 may be embedded in the carrier 10 at positions corresponding to the first magnets 11, so as to save occupied space. At least one of the first magnet 11 and the second magnet 12 may include an electromagnet or an energized coil, and the first magnet 11 and the second magnet 12 may be magnetically attracted or repelled, for example, the first magnet 11 may include an energized coil, the second magnet 12 may include a magnet or a magnet, the first magnet 11 and the second magnet 12 may be magnetically attracted or repelled by the energization of the energized coil, and the energized coil interacts with the magnet to generate lorentz force to provide thrust for the upward and downward movement of the carrier 10.

The carrier 10 may be moved in a first direction in a case where the first magnet 11 and the second magnet 12 are magnetically attracted, and the carrier 10 may be moved in a second direction in a case where the first magnet 11 and the second magnet 12 are repelled, the first direction and the second direction may be along a length direction of the base, and the first direction and the second direction are opposite. For example, the first magnet 11 may be an energizing coil, the second magnet 12 may be a magnet or a magnet, the first magnet 11 and the second magnet 12 may be magnetically attracted or repelled by the energizing coil, and when a first current is input into the energizing coil, the first magnet 11 and the second magnet 12 are magnetically attracted, and the carrier 10 moves along the first direction under the action of the pushing force; under the condition that the second current is input into the electrified coil, the first magnet 11 and the second magnet 12 repel each other, the carrier 10 can move along the second direction under the action of the pushing force, and the moving direction of the carrier 10 can be changed by changing the current input into the electrified coil according to needs.

In the driving assembly of the present application, the carrier 10 is disposed in the chamber, the first magnet 11 is disposed in the base, the second magnet 12 is disposed in the carrier 10 at a position corresponding to the first magnet 11, the carrier is pushed to move by the magnetic attraction or repulsion between the first magnet 11 and the second magnet 12, the occupied space of the first magnet 11 and the second magnet 12 is reduced, and the overall volume of the driving assembly is reduced. In the use, can establish the camera on the carrier, drive the camera through the carrier and remove, can realize zooming of camera, be favorable to reducing the whole volume of subassembly of making a video recording, be favorable to the frivolousization of equipment.

In some embodiments, the pedestal and the chamber may be cylindrical, the carrier 10 may be annular, and in the case that the carrier 10 is disposed in the chamber, a certain gap may be provided between the carrier 10 and the inner side wall of the chamber, so that the carrier 10 can move, so that the carrier 10 and the inner side wall of the chamber are better matched, and waste of space is reduced. Wherein, the axis of base, cavity and carrier 10 can the collineation, and the waste in space when reducing cooperation between the inside wall of carrier 10 and cavity can reduce drive assembly's whole volume. In the application, can make full use of cylindric space, can have higher matching degree with camera lens, outside cloud platform or cylindrical flexible camera etc. can reduce whole volume for cloud platform camera module and cylindrical flexible camera, can provide more spaces and be used for laying out other cell-phone spare parts, for example make the space available for increasing the battery volume, improve the duration.

In other embodiments, as shown in fig. 2 and 3, the outer side of the carrier 10 may be provided with a first guide groove 21 extending along the axial direction of the carrier 10, the first guide groove 21 may be provided with a ball 20 therein, the number of the balls 20 may be one or more, for example, three balls 20 may be provided in each first guide groove 21, the ball 20 may abut against the inner side wall of the chamber, the ball 20 may roll in the first guide groove 21, the ball 20 may roll on the inner side wall of the chamber, the friction force may be reduced by the ball 20, which is beneficial to reducing the required pushing resistance, and the movement of the carrier 10 may be guided by the rolling of the ball 20 in the first guide groove 21. Through the cooperation of spin 20 and first guide slot 21, use less magnet and circular telegram coil can promote carrier 10, be favorable to increasing coil effective length and magnetic thrust, also be favorable to reducing overall dimension.

Optionally, a second guide groove 22 may be disposed at a position corresponding to the first guide groove 21 on the inner side wall of the chamber, a portion of the rolling ball 20 may be disposed in the second guide groove 22, the rolling ball 20 may roll in the second guide groove 22, and by rolling the rolling ball 20 in the first guide groove 21 and the second guide groove 22, the carrier 10 may move stably, so as to reduce friction resistance, and only a small current is required to push a heavy lens, which is beneficial to saving power consumption of portable devices such as a mobile phone.

In some embodiments, as shown in fig. 3 and 5, an end of the first guiding groove 21 far away from the first opening 41 may be provided with a first limiting piece 23, an end of the second guiding groove 22 near the first opening 41 may be provided with a second limiting piece 24, a rolling range of the ball 20 in the first guiding groove 21 may be limited by the first limiting piece 23, and a rolling range of the ball 20 in the second guiding groove 22 may be limited by the second limiting piece 24, so as to limit the rolling of the ball 20.

Alternatively, the number of the first guide grooves 21 may be plural, for example, the number of the first guide grooves 21 may be two, the plurality of first guide grooves 21 may be provided at intervals in the circumferential direction of the carrier 10, and the plurality of first guide grooves 21 may be provided at even intervals in the circumferential direction of the carrier 10, so that the carrier 10 is stably moved.

In an embodiment of the present application, as shown in fig. 1 and 2, the base may include a housing 30 and a base 31, wherein the housing 30 defines a chamber therein extending in a length direction of the housing 30, the base 31 is connected with one end of the housing 30, and the first opening 41 may be provided on the base 31. The housing 30 and the base 31 may be integrally formed, and the housing 30 may be a plastic or metal member, such as an iron member, and the structural members inside the chamber may be protected by the housing 30.

As shown in fig. 1, the base may further include: the limiting plate 32, the limiting plate 32 may be disposed at the other end of the housing 30, the second opening 42 may be disposed on the limiting plate 32, and the radial dimension of the carrier 10 is greater than the radial dimensions of the first opening 41 and the second opening 42, so as to limit the movement range of the carrier 10, and the carrier 10 is limited to move in the chamber.

In some embodiments, as shown in fig. 2 and 5, a mounting plate 33 may be provided on the base 31, the mounting plate 33 may extend in the direction of the chamber, the first magnet 11 may be provided in the mounting plate 33, at least a portion of the mounting plate 33 may be located in the chamber, and the first magnet 11 may be located in the chamber. The mounting plate 33 may be formed as a part of the housing 30. Wherein the second guide groove 22 may be provided at a position corresponding to the first guide groove 21 on the mounting plate 33.

In the embodiment of the present application, as shown in fig. 2, 4 and 5, a first locking groove 34 may be provided on the mounting plate 33, a protection plate 39 may be provided between the mounting plate 33 and the inner side wall of the chamber, the first magnet 11 may be provided on a side of the protection plate 39 close to the mounting plate 33, the first magnet 11 may be provided in the first locking groove 34, the first magnet 11 may be embedded in the first locking groove 34, and the first magnet 11 may be protected by the protection plate 39.

Optionally, the driving assembly may further include a detection unit, and the detection unit may be used to detect the position of the carrier 10, so that the position of the camera on the carrier 10 may be determined, and the camera may zoom accurately and quickly.

In some embodiments, as shown in fig. 2 to 5, the driving assembly may include a detection unit, the detection unit may include a magnet 36 and a hall sensing chip 37, wherein the magnet 36 may be disposed in the carrier 10, the mounting plate 33 may be provided with a second card slot 35, the hall sensing chip 37 may be disposed on a side of the protection plate 39 close to the mounting plate 33, the hall sensing chip 37 may be protected by the protection plate 39, the hall sensing chip 37 is disposed in the second card slot 35, the hall sensing chip 37 may be embedded in the second card slot 35, so as to save an occupied space, the hall sensing chip 37 may detect a position of the magnet 36 or a position of the carrier 10, and a focusing speed and precision of the camera may be ensured by using the hall sensing chip. The magnet may be a hall sensor magnet, which may provide magnetic field sensing for the hall sensor chip 37 to determine the position of the magnet 36 or the position of the carrier 10. In the application process, the moving position of the magnet 36 can be detected through the Hall sensing chip 37, so that the moving position is fed back to the driving of the camera, the camera drives the lens to adjust the focusing position, and the focusing speed and accuracy of the camera are guaranteed.

In an embodiment of the present application, as shown in fig. 4, the driving assembly may include: the circuit board 38, the circuit board 38 can be a flexible circuit board, the circuit board 38 can be electrically connected with the electromagnet or the electrified coil, the electromagnet or the electrified coil can be powered through the circuit board 38, the circuit board 38 can be electrically connected with the hall sensing chip 37, the circuit board 38 is arranged on the mounting plate 33, the hall sensing chip 37 can be powered through the circuit board 38, and the circuit board 38 can be electrically connected with an external module circuit board.

In some embodiments, as shown in fig. 4, the side of the shield 39 remote from the mounting plate 33 is provided with a magnetically permeable material piece 40, the magnetically permeable material piece 40 being disposed adjacent to the first magnet 11, wherein the magnetically permeable material piece 40 may be disposed inside the mounting plate 33. For example, the position that one side of backplate 39 that keeps away from mounting panel 33 corresponds with first magnet 11 can be equipped with magnetic material spare 40, and first magnet 11 can be for circular telegram coil, and magnetic material spare 40 can be magnetized through the magnetism of first magnet 11 when circular telegram coil circular telegram to magnetic material spare 40 also has certain magnetism, and then improves the effort to second magnet 12, makes magnetic force (and change) more even steady, is favorable to carrier 10 steady movement.

The embodiment of the application provides a camera shooting assembly which comprises the driving assembly in the embodiment. The camera shooting assembly with the driving assembly in the embodiment is beneficial to the integral thinning of the volume of the camera shooting assembly, is beneficial to the miniaturization of equipment, for example, can be suitable for portable mobile camera shooting equipment, focusing motor equipment and the like, and can optimize the structural space.

In an embodiment of the present application, the image capturing assembly may further include: the camera, the camera is established on carrier 10, can drive the camera through carrier 10 and remove, can be so that the camera can zoom. The camera can be telescopic camera, and the camera can be cylindrical, can effectively reduce cylindrical camera's overall dimension and volume through drive assembly.

An embodiment of the present application provides an electronic device, which includes the camera module described in the above embodiment. The electronic equipment with the camera assembly in the embodiment is beneficial to the integral reduction of the volume of the equipment, the miniaturization of the equipment and the realization of better layout and functions for the design of portable equipment (such as a mobile phone) and the like.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A drive assembly, comprising:

first magnet with under the circumstances that the second magnet is repulsive mutually, the carrier removes along the second direction, first direction with the second direction is along the length direction of base, just first direction with second opposite direction, the base includes the base, be equipped with the mounting panel on the base, first magnet is established in the mounting panel, at least part of mounting panel is located in the cavity, be equipped with first draw-in groove on the mounting panel, the mounting panel with be equipped with the backplate between the inside wall of cavity, first magnet is established being close to of backplate one side of mounting panel, first magnet is established in the first draw-in groove, keeping away from of backplate one side of mounting panel is equipped with magnetic conduction material spare, magnetic conduction material spare is close to first magnet sets up.

2. A drive assembly according to claim 1, wherein the carrier is provided on its outer side with a first guide channel extending in the axial direction of the carrier, in which first guide channel is provided a ball which rests against an inner side wall of the chamber, the ball being rollable in the first guide channel.

3. A drive assembly according to claim 2 wherein a second channel is provided in the inner side wall of the chamber at a position corresponding to the first channel, a portion of the ball being received in the second channel in which it is rollable.

4. The driving assembly according to claim 3, wherein a first limiting piece is disposed at an end of the first guide groove far away from the first opening, and a second limiting piece is disposed at an end of the second guide groove close to the first opening.

5. The drive assembly of claim 2, wherein the first guide slot is plural in number, and the plural first guide slots are provided at intervals in a circumferential direction of the carrier.

6. The drive assembly of claim 1, wherein the base further comprises:

a housing defining therein the chamber extending along a length of the housing;

the base is connected with one end of the shell, and the first opening is formed in the base.

7. The drive assembly of claim 6, wherein the base further comprises:

8. The drive assembly of claim 1, further comprising a detection unit comprising:

a magnet disposed in the carrier;

9. The drive assembly of claim 8, further comprising:

10. A camera assembly comprising a camera head and a drive assembly as claimed in any one of claims 1 to 9, the camera head being provided on the carrier.

11. An electronic device comprising the camera assembly of claim 10.