CN113572928A

CN113572928A - Drive assembly, camera module and electronic equipment

Info

Publication number: CN113572928A
Application number: CN202110734185.9A
Authority: CN
Inventors: 袁斌; 靖二勇
Original assignee: New Shicoh Motor Co Ltd
Current assignee: New Shicoh Motor Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-10-29
Anticipated expiration: 2041-06-30
Also published as: CN113572928B

Abstract

The invention provides a driving assembly, a camera module and electronic equipment, wherein the driving assembly comprises a square upper shell, a magnet and an upper elastic sheet which are arranged in the upper shell, and a gasket arranged in the upper shell, the gasket is fixedly arranged between the upper elastic sheet and the upper shell, the gasket comprises four fixing parts which are respectively fixed at four vertexes of the upper shell, and a connecting part connected between every two adjacent fixing parts, a positioning strip is fixedly arranged on each connecting part, the fixing parts are fixedly connected with the upper shell and the upper elastic sheet, and the positions of the positioning strips correspond to the positions of the magnet so as to position the magnet. According to the invention, by designing the gasket, the mounting position of the magnet can be accurately positioned, and the mounting yield of the magnet is ensured.

Description

Drive assembly, camera module and electronic equipment

Technical Field

The invention relates to the technical field of cameras, in particular to a driving assembly, a camera module and electronic equipment.

Background

Along with the rapid development of the camera industry, the application of the camera module is more and more extensive, and at present, various types of electronic products such as cameras, mobile phones, computers and the like are equipped with the camera module, so that people can take pictures at any time and any place conveniently, and convenience and fun are brought to the life of people.

In a camera module having an auto-focusing function, a voice coil driver module (VCM) is an essential component. A VCM generally includes a housing, a magnet, a coil, a spring, and a carrier disposed within the housing for carrying a lens. The lens on the carrier is driven to move axially by the interaction force between the permanent magnetic field of the magnet and the magnetic poles in the magnetic field generated by the electrified coil, so that the focusing function is realized.

The shell in the existing driving assembly consists of an upper shell and a lower shell, and the magnet is fixed on the inner wall of the upper shell. This magnet one board adopts 4, and its shape is various, generally can adopt rectangular shape, isosceles trapezoid etc. four magnets are fixed respectively on four lateral walls of last casing. In order to ensure that the force between the magnetic field of each magnet and the magnetic field generated by the energized coil is uniform, each magnet is generally fixed to the middle of the side wall of the upper case. For the magnet with the length equal to the side length of the upper shell, the positioning is easier, and when the magnet is smaller, the positioning at two ends of the magnet is difficult, so that the mounting efficiency of the magnet is low, and the performance of the driving component is influenced.

Disclosure of Invention

In view of the above, it is desirable to provide a driving assembly, a camera module and an electronic device for solving the problem of difficulty in positioning a magnet in the prior art.

The utility model provides a drive assembly, includes square last casing, arranges in magnet and last shell fragment in the last casing, still including arranging in the gasket in the last casing, the gasket set firmly in go up the shell fragment and go up between the casing, the gasket is including being fixed in respectively go up four fixed parts on four summits of casing, and per adjacent two connecting portion of connecting between the fixed part, every the location strip has set firmly on the connecting portion, the fixed part with go up the casing with go up shell fragment fixed connection, the position of location strip with the position of magnet corresponds for it is right magnet advances line location.

Furthermore, in the above driving assembly, each positioning strip of the gasket encloses and closes to form a square through hole, the upper elastic sheet includes a square outer frame body and four fixing plates respectively fixed at four corners of the outer frame body, the outer frame body is arranged at the inner side of the square through hole, and the four fixing plates are respectively and fixedly connected with the four fixing portions.

Furthermore, in the driving assembly, an installation part extends from one side of the positioning strip, which faces the square hole, and the installation part is fixedly connected with the upper elastic sheet.

Further, the above drive assembly, wherein the length of the positioning bar is the same as the length of the magnet.

Further, in the above driving assembly, the fixing portion is disposed on a side of the connecting portion facing the upper spring plate.

Furthermore, in the above driving assembly, the thickness of the positioning bar is equal to the thickness of the upper spring plate.

Furthermore, the driving assembly, wherein four corners of the inner wall of the upper shell are recessed downwards to form a sinking table top, and the fixing portion is fixed on the sinking table top.

Furthermore, in the above driving assembly, the fixing portion is fixedly provided with a positioning column, and the upper elastic sheet is provided with a positioning hole matched with the positioning column.

The invention also provides a camera module which comprises a lens, an imaging sensor and any one of the driving components.

The invention also provides electronic equipment comprising the camera module.

According to the invention, a gasket is arranged between the upper shell and the upper elastic sheet, the gasket consists of four fixing parts and a connecting part for connecting two adjacent fixing parts, each connecting part is provided with a positioning strip, and the positioning strips correspond to the positions of the magnets and are used for positioning the installation positions of the magnets. The mounting position of the magnet can be accurately positioned through the gasket, and the mounting yield of the magnet is ensured.

Drawings

FIG. 1 is a schematic structural diagram of a driving assembly according to a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a gasket according to a first embodiment of the present invention;

fig. 3 is a schematic structural view of an upper spring plate according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a gasket according to a second embodiment of the present invention.

Description of the main elements

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, this embodiment is provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the driving assembly according to the first embodiment of the present invention includes a housing, and a carrier 20, a coil 30, a magnet 40, a spacer 50, an upper spring 60, and a lower spring 70 disposed in the housing in a three-dimensional xyz rectangular coordinate system. The housing may be a square structure, and includes an upper housing 11 and a lower housing 12 which can be covered with each other, the coil 30 is wound outside the carrier 20, the number of the magnets 40 is four, and the four magnets 40 are disposed outside the coil 30 and respectively fixedly connected to four side walls of the upper housing 11. The gasket 50 is disposed between the upper elastic sheet 60 and the upper housing 11, the upper side of the gasket 50 is fixedly connected to the upper housing 11, the lower side of the gasket is fixedly connected to the upper end surface of the upper elastic sheet 60, and the lower end surface of the upper elastic sheet 60 is fixedly connected to the upper end of the carrier 20.

As shown in fig. 2, in a three-dimensional xyz rectangular coordinate system, the spacer 50 has a substantially square (rectangular or square) frame structure including four fixing portions 51 and a connecting portion 52 connecting two adjacent fixing portions 51. The upper and lower end surfaces of the fixing portion 51 are respectively fixedly connected to the upper housing 11 and the lower elastic sheet 60, and in specific implementation, the fixing portion 51 can be fixedly connected to the upper housing 11 and the lower elastic sheet 70 by dispensing. Each connecting portion 52 is fixedly provided with a positioning strip 53, and the positioning strips 53 can be integrally formed on the connecting portion 52. The positioning bar 53 is used to position the magnet 40, so as to determine the mounting position of the magnet 40 when the magnet 40 is mounted.

Preferably, the length of the positioning bar 53 is equal to the length of the magnet 40, and when the magnet 40 is mounted, the magnet 40 may be aligned with the positioning bar 53 to determine the mounting position of the magnet 40, and then the magnet 40 may be fixed to the upper case 11.

As shown in fig. 3, in a rectangular coordinate system of three-dimensional xyz, the upper elastic sheet 60 is substantially square, and includes a square outer frame 61, mounting plates 62 respectively fixed to four corners of the outer frame 61, and an inner frame 64 connected to the outer frame 61 through a wrist 63. Each positioning bar 53 of the gasket 50 is enclosed to form a square through hole, the outer frame 61 is located inside the square through hole so as to avoid shielding the positioning bar 53, and the upper elastic sheet 60 is fixedly connected to the gasket 50 through the four mounting plates 62 and the four fixing portions 51.

When the upper spring plate 60 is mounted on the gasket 50, the edge of the outer frame 61 of the upper spring plate 60 is located at the inner side edge of the square through hole of the gasket, and the four fixing portions 51 of the gasket 50 are located at the four corners of the square through hole and partially overlapped with the four mounting plates 62 of the upper spring plate 60, so that the fixing portions 51 and the mounting plates 62 can be fixed by glue.

It can be understood that, in order to improve the mounting stability of the gasket 50 and the upper elastic sheet 60, the size of the fixing portion 51 may be designed to be larger so as to increase the overlapping area of the fixing portion 51 and the upper elastic sheet 60.

The positioning strip 53 is fixed on one side of the connecting portion 52 facing the upper elastic sheet 60, the thickness of the positioning strip 53 is equal to or slightly greater than that of the upper elastic sheet 60, and a certain distance is provided between the bottom surface of the positioning strip 53 and the bottom surface of the fixing portion 51 to ensure an avoiding space between the upper elastic sheet 60 and the magnet 40.

Further, in an embodiment of the present invention, a positioning column (not shown) is fixedly disposed on the fixing portion 51, a positioning hole adapted to the positioning column is disposed on the upper elastic sheet 60, and when the upper elastic sheet 60 is mounted on the gasket 50, the upper elastic sheet can be mounted and positioned through the positioning column and the positioning hole, so as to improve the mounting efficiency.

Furthermore, four corners of the inner wall of the upper housing 11 are recessed downward to form a sinking platform 111, and the fixing portion 51 is fixed on the sinking platform 111. It can be understood that the sinking platform 111 can be used to align the fixing portion 51 when the gasket 50 is mounted, and can also effectively limit the inner carrier 20 to prevent the carrier 20 from shifting during axial movement.

In this embodiment, a gasket is disposed between the upper shell and the upper elastic sheet, the gasket is composed of four fixing portions and a connecting portion connecting two adjacent fixing portions, a positioning strip is disposed on each connecting portion, and the positioning strip corresponds to the position of the magnet and is used for positioning the installation position of the magnet. The mounting position of the magnet can be accurately positioned through the gasket, and the mounting yield of the magnet is ensured.

Referring to fig. 4, a gasket according to a second embodiment of the present invention is basically the same as the gasket according to the first embodiment, except that a mounting portion 54 extends from one side of the positioning strip 53 facing the square hole, and the mounting portion 54 is fixedly connected to an outer frame 61 of an upper elastic sheet 60, so as to enhance the mounting firmness of the elastic sheet and the gasket.

The embodiment of the invention also provides a camera module, which comprises a lens, an imaging sensor and the driving component, wherein the lens is arranged on the carrier, the imaging sensor is arranged on one side of the shell far away from the lens, and the imaging sensor and the lens are oppositely arranged on the optical axis path.

The embodiment of the invention also provides electronic equipment which comprises the camera module.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a drive assembly, includes square last casing, arranges in magnet and last shell fragment in the last casing, its characterized in that still including arranging in the gasket in the last casing, the gasket set firmly in go up the shell fragment and go up between the casing, the gasket is including being fixed in respectively go up four fixed parts on four summits of casing, and per adjacent two connecting portion of connecting between the fixed part, every the location strip has set firmly on the connecting portion, the fixed part with go up the casing with go up shell fragment fixed connection, the position of location strip with the position of magnet corresponds for it is right to be used for magnet advances line location.

2. The driving assembly as claimed in claim 1, wherein each of the positioning bars of the gasket encloses a square through hole, the upper spring plate includes a square outer frame and four fixing plates fixed to four corners of the outer frame, the outer frame is disposed inside the square through hole, and the four fixing plates are fixedly connected to the four fixing portions.

3. The driving assembly as claimed in claim 2, wherein a mounting portion is extended from one side of the positioning bar facing the square hole, and the mounting portion is fixedly connected with the upper spring plate.

4. The drive assembly of claim 1, wherein the length of the positioning bar is the same as the length of the magnet.

5. The driving assembly as claimed in claim 1, wherein the fixing portion is disposed on a side of the connecting portion facing the upper resilient piece.

6. The drive assembly of claim 1, wherein the thickness of the positioning bar is equal to the thickness of the upper spring.

7. The drive assembly of claim 1, wherein four corners of the inner wall of said upper housing are recessed downwardly to form a recessed table, said retainer being secured to said recessed table.

8. The driving assembly as claimed in claim 1, wherein the fixing portion is fixedly provided with a positioning post, and the upper resilient plate is provided with a positioning hole adapted to the positioning post.

9. A camera module comprising a lens, an imaging sensor, and the driving assembly of any one of claims 1 to 8.

10. An electronic device, comprising the camera module of claim 9.