CN113050246B

CN113050246B - Base coupling assembling, drive arrangement, module and electronic equipment make a video recording

Info

Publication number: CN113050246B
Application number: CN202110268298.4A
Authority: CN
Inventors: 靖二勇; 易长飞
Original assignee: New Shicoh Motor Co Ltd
Current assignee: New Shicoh Motor Co Ltd
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2023-06-09
Anticipated expiration: 2041-03-12
Also published as: CN113050246A

Abstract

The invention discloses a base connecting component, a driving device, a camera module and electronic equipment, wherein the base connecting component comprises: the base is provided with a bottom surface and a bearing surface, and a through mounting hole is formed in the base; the flexible circuit board is fixed on the bearing surface and is connected with an electric terminal; and the glue groove unit is arranged on the base and positioned at the edge of the mounting hole, one end, connected with the flexible circuit board, of the power connection terminal is positioned in the glue groove unit, and the glue groove unit can be connected with the base and the flexible circuit board through glue. The invention avoids the risks of leakage of the electric terminal and short circuit of the flexible circuit board, and has the advantages of simple structure, convenient dispensing operation, good connection firmness and the like.

Description

Base coupling assembling, drive arrangement, module and electronic equipment make a video recording

Technical Field

The present invention relates to the field of micro motors, and more particularly, to a base connection assembly, a driving device, a camera module, and an electronic device.

Background

In electronic devices such as existing cameras, smart phones, smart watches, etc., a camera is often provided, and the camera mainly comprises a driving device and a lens, and the driving device is in driving connection with the lens to drive the lens to realize automatic focusing. The related driving device mainly comprises a shell, a base, a flexible circuit board, a carrier, an upper elastic sheet, a lower elastic sheet, a magnet, a coil and other structures, wherein when the coil is electrified, the carrier can move along the optical axis direction of the lens to drive the lens to realize automatic focusing.

In the prior art, the base and the flexible circuit board are generally connected and fixed through glue, but the base and the flexible circuit board are inconvenient to operate due to the fact that the electric terminal and the flexible circuit board need to be welded.

Disclosure of Invention

Accordingly, it is necessary to provide a base connecting assembly, a driving device, a camera module and an electronic device with simple structure, convenient dispensing operation, firm connection and high safety, aiming at the technical problems.

A base connection assembly, comprising:

the base is provided with a bottom surface and a bearing surface, and a through mounting hole is formed in the base;

the flexible circuit board is fixed on the bearing surface and is connected with an electric terminal; and

The glue groove unit is arranged on the base and is positioned at the edge of the mounting hole, one end, connected with the flexible circuit board, of the electric terminal is positioned in the glue groove unit, and the glue groove unit can be connected with the base and the flexible circuit board through glue.

In one embodiment, the glue groove unit comprises an open groove, the open groove is provided with a first side wall, a second side wall and a third side wall, and arc transition surfaces are arranged between the first side wall and the second side wall and between the second side wall and the third side wall.

In one embodiment, an outward extending expansion groove is formed in the outer side of the top of the opening groove, and the shape of the expansion groove is matched with that of the opening groove.

In one embodiment, a first expansion groove extending outwards is formed in one side of the open groove, and a second expansion groove extending outwards is formed in the other side of the open groove.

In one embodiment, a concave cavity is formed in the bearing surface of the base at the second expansion groove, and the concave cavity extends in a direction away from the mounting hole.

In one embodiment, the base is embedded with a reinforcing rib, and the tail end of the reinforcing rib is located in the second expansion groove.

In one embodiment, the second expansion tank comprises a first tank body and a second tank body which are connected, the first tank body is connected with the open groove, and a step is arranged between the first tank body and the second tank body.

A driving device comprises a shell, a carrier and the base connecting component.

A camera module comprises the driving device.

An electronic device comprises the camera module.

Above-mentioned base coupling assembling, drive arrangement, module and electronic equipment make a video recording, through setting up gluey groove unit on the base, and make the one end that connects electric terminal and flexible circuit board to be connected be located gluey groove unit, then, glue in adding gluey groove unit through the point gluey equipment, make glue cladding connect the solder joint of electric terminal and flexible circuit board, and make base and flexible circuit board connect fixedly, it has avoided the risk that electric terminal electric leakage and flexible circuit board short circuit, and has simple structure, glue dispensing convenient operation, advantages such as the connection fastness is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a base connection assembly of the present invention;

FIG. 2 is a schematic view of the structure of the base connection assembly of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of the location of a cavity of the present invention;

FIG. 5 is a schematic view of the driving apparatus of the present invention;

FIG. 6 is a schematic diagram of a camera module according to the present invention;

fig. 7 is a schematic structural view of the electronic device of the present invention.

Detailed Description

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown 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, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed 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 are used herein for illustrative purposes only and are not meant to be the only embodiment.

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 herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Embodiment one:

referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a base connecting assembly according to the present invention; FIG. 2 is a schematic view of the structure of the base of the present invention; fig. 3 is a partial enlarged view of the base at a. An embodiment of the present invention provides a base connection assembly 10, and the base connection assembly 10 can be applied to a micro motor such as a suspension wire motor, a linear motor, etc., and the base connection assembly 10 includes a base 101, a flexible circuit board 102, and a glue groove unit 103.

Specifically, the base 101 has a bottom surface 10101 and a bearing surface 10102, and the base 101 serves as a mounting base for the micro motor and can be mated with the housing 104. For example: the housing 104 is covered on the base 101, and forms a mounting cavity with the base 101. In this embodiment, the bottom surface 10101 is a bottom plane of the base 101 and is located outside the housing 104, the bearing surface 10102 is a top plane of the base 101 and is located inside the housing 104, and parts such as a lower spring sheet and a flexible circuit board 102 can be mounted on the bearing surface 10102.

In addition, a carrier may be mounted in a mounting cavity defined by the base 101 and the housing 104, and a component (such as a lens) to be driven may be mounted on the carrier, and a mounting hole 1013 penetrating the base 101 is provided in the base 101, where the mounting hole 1013 can avoid the component to be driven such as the lens.

In an embodiment of the present invention, the flexible circuit board 102 is fixed on the carrying surface 10102, and in order to reduce the influence on the structure of the flexible circuit board 102, the flexible circuit board 102 may be adhered to the carrying surface 10102 by using glue. The flexible circuit board 102 is connected with an electric terminal 105; one end of the electrical terminal 105 is fixed to the flexible circuit board 102 by soldering, and the other end of the electrical terminal 105 extends outwards to the outside of the base 101, and by connecting the other end of the electrical terminal 105, current can be led to the flexible circuit board 102, so that the flexible circuit board 102 can work normally.

Referring to fig. 1 again, in an embodiment of the present invention, the glue groove unit 103 is disposed on the base 101 and is located at an edge of the mounting hole 1013, and one end of the electrical connection terminal 105 connected to the flexible circuit board 102 is located in the glue groove unit 103, that is, a soldering point of the electrical connection terminal 105 soldered to the flexible circuit board 102 is located in the glue groove unit 103, and the glue groove unit 103 can connect the base 101 and the flexible circuit board 102 through glue, in other words, glue water in the glue groove unit 103 can cover the soldering point of the electrical connection terminal 105 soldered to the flexible circuit board 102. The arrangement is convenient for the glue dispensing equipment to carry out glue dispensing fixation on the flexible circuit board 102 and the base 101 through the glue groove unit 103, and glue coats welding spots soldered with the flexible circuit board 102 by the electric terminals 105, so that the welding spots are not contacted with other metal parts, the risks of electric leakage and short circuit are avoided, and the use safety of the flexible circuit board 102 is improved; meanwhile, glue can also form glue posts in the glue groove unit 103, so that the connection strength of the base 101 and the flexible circuit board 102 is further improved.

Above-mentioned base coupling assembling 10 is through setting up gluey groove unit 103 on base 101 to make the one end that connects electric terminal 105 and flexible circuit board 102 to be connected be arranged in gluey groove unit 103, then, glue is added gluey inslot unit 103 through the point equipment of gluing, make glue cladding connect the solder joint of electric terminal 105 and flexible circuit board 102, and make base 101 and flexible circuit board 102 connect fixedly, it has avoided the risk that electric terminal electric leakage and flexible circuit board short circuit, and has simple structure, glue dispensing convenient operation, advantages such as firm in connection are good.

Referring to fig. 3, in an embodiment of the present invention, the glue tank unit 103 includes an open groove, the open groove has a first sidewall 1031, a second sidewall 1032, and a third sidewall 1033, and arc transition surfaces 1034 are formed between the first sidewall 1031 and the second sidewall 1032, and between the second sidewall 1032 and the third sidewall 1033. So configured, when the glue solidifies within the open recess, the arcuate transition surface 1034 may reduce the stress of the glue at the edges, avoiding localized hollowness of the glue.

Optionally, an expansion groove 106 extending outwards is arranged at the top outer side of the opening groove, that is, a step 107 is formed between the expansion groove 106 and the opening groove. In this embodiment, the shape of the expansion groove 106 matches with the shape of the open groove, for example: the shape of the opening groove is semicircular, rectangular or semi-elliptical, and correspondingly, the shape of the expansion groove 106 is semicircular, rectangular or semi-elliptical, so that when excessive glue added into the opening groove overflows, the glue can quickly flow into the expansion groove 106 from a larger overflow channel. In some embodiments, the shape of the expansion groove 106 may be different from the shape of the first glue groove 21. In addition, the step 107 may be a plane or an inclined plane, and when the step 107 is an inclined plane, the higher side of the inclined plane is connected with the open groove, so that the glue is convenient to flow back into the open groove from the expansion groove 106.

With continued reference to fig. 3, in an embodiment of the present invention, a first expansion groove 108 extending outward is disposed on one side of the open groove, and a second expansion groove 109 extending outward is disposed on the other side of the open groove. The first expansion tank 108 and the second expansion tank 109 may be provided in the same shape, and the first expansion tank 108 and the second expansion tank 109 may be provided in different shapes. The arrangement of the first expansion groove 108 and the second expansion groove 109 can increase the contact area between the glue and the base 101 and the flexible circuit board 102, thereby increasing the connection strength between the base 101 and the flexible circuit board 102.

It should be noted that, the first expansion tank 108 and the second expansion tank 109 are not necessarily provided at the same time, for example: a first expansion tank 108 or a second expansion tank 109 may be provided at one side of the open groove, the other side of the open groove being unchanged. In some embodiments, a plurality of continuous expansion grooves such as the first expansion groove 108 and the second expansion groove 109 may be formed on one side of the open groove at the same time. In this way, the contact area between the glue and the base 101 and the flexible circuit board 102 can be further increased, and the connection strength between the base 101 and the flexible circuit board 102 can be improved.

Referring to fig. 4, fig. 4 is a schematic view of the position of the cavity of the present invention. In an embodiment of the present invention, a cavity 1010 is formed on the bearing surface 10102 of the base 101 at the position of the second expansion tank 109, and the cavity 1010 extends away from the mounting hole 1013. When the flexible circuit board 102 is mounted on the bearing surface 10102 of the base 101, the flexible circuit board 102 and the cavity 1010 are enclosed to form a dispensing groove with an open top and a relatively closed periphery and bottom, at this time, glue is added into the cavity 1010 by a dispensing device, and then the glue can flow into a gap between the flexible circuit board 102 and the base 101, so that the flexible circuit board 102 and the base 101 are adhered and fixed. In this embodiment, the shape of the cavity 1010 may be rectangular, circular, trapezoidal, etc. The height of the cavity 1010 is generally less than half the height of the base 101 in order to reduce the impact on the strength of the base 101.

In an embodiment of the present invention, the base 101 is embedded with a reinforcing rib 1011, and the end of the reinforcing rib 1011 is located in the second expansion groove 109. In this embodiment, the end of the reinforcing rib 11 generally extends out of the base 101 for cutting conveniently, and the second expansion groove 109 can avoid the reinforcing rib 11 and provide a cutting operation space.

In an embodiment of the present invention, the second expansion tank 109 includes a first tank 1091 and a second tank 1092 connected to each other, where the first tank 1091 is connected to the open groove, and a step 1093 is provided between the first tank 1091 and the second tank 1092. In this embodiment, the cavity 1010 is located in the second groove 1092, and in order to make the glue in the cavity 1010 have a larger contact area with the flexible circuit board 10 and the base 101 and reduce the influence on the strength of the base 101 as much as possible, the depth of the second groove 1092 may be set smaller than the depth of the first groove 1091. In order to reduce deformation and local stress concentration of the glue string, the step 1093 is arc-shaped.

Embodiment two:

referring to fig. 5, fig. 5 is a schematic structural diagram of a driving device according to the present invention. An embodiment of the present invention provides a driving device 20, where the driving device 20 includes the base connecting assembly 10, a housing 104, a carrier, a magnet, a coil, an upper spring, a lower spring, and the like. Wherein, the shell 104 is covered on the base 101, and forms a mounting cavity with the base 101, and the magnet, the coil, the upper spring plate, the lower spring plate and the like are mounted in the mounting cavity. In actual use, the structure (such as the lens component) to be driven is connected with the carrier, at the moment, the coil is electrified, and the carrier can move in the mounting cavity, so that the structure such as the lens component can be driven to move.

Embodiment III:

referring to fig. 6, fig. 6 is a schematic structural diagram of an image capturing module according to the present invention. An embodiment of the invention provides an image capturing module 30, which includes the driving device 20. Specifically, the camera module 30 includes a driving device 20 and a lens assembly 40, where the driving device 20 is connected to the lens assembly 40, and when the driving device 20 is connected to the lens assembly 40, the lens assembly 40 is connected to a carrier of the driving device 20, and when a coil of the driving device 20 is energized, the carrier can move along an optical axis direction of the lens assembly 40, so as to drive the lens assembly 40 to implement auto-focusing.

Embodiment four:

referring to fig. 7, fig. 7 is a schematic structural diagram of an electronic device according to the present invention. An embodiment of the invention provides an electronic device 50, which includes the camera module 30. Specifically, the electronic device 50 may be a mobile phone, a tablet computer, a phone watch, a security camera, a car camera, etc., and the electronic device includes a camera module 30 and a housing 501, where the camera module 30 is disposed on the housing 501.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present application and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims

1. A base connection assembly, comprising:

The glue groove unit is arranged on the base and is positioned at the edge of the mounting hole, one end, connected with the flexible circuit board, of the electric terminal is positioned in the glue groove unit, and the glue groove unit can connect the base with the flexible circuit board through glue;

the glue groove unit comprises an opening groove, wherein the opening groove is provided with a first side wall, a second side wall and a third side wall, and arc transition surfaces are arranged between the first side wall and the second side wall and between the second side wall and the third side wall;

one side of the opening groove is provided with a first expansion groove extending outwards, and the other side of the opening groove is provided with a second expansion groove extending outwards;

and a concave cavity is formed in the bearing surface of the base at the second expansion groove, and extends in a direction away from the mounting hole.

2. The base connection assembly of claim 1, wherein an outwardly extending expansion groove is formed on the top outer side of the open groove, and the expansion groove is shaped to match the shape of the open groove.

3. The base connection assembly of claim 2, wherein the base is embedded with a reinforcing rib, and wherein a distal end of the reinforcing rib is positioned in the second expansion tank.

4. The base connection assembly of claim 3, wherein the second expansion tank comprises a first tank body and a second tank body connected, the first tank body is connected with the open groove, and a step is arranged between the first tank body and the second tank body.

5. A drive arrangement comprising a housing, a carrier and a base connection assembly as claimed in any one of claims 1 to 4.

6. An imaging module comprising the driving device according to claim 5.

7. An electronic device comprising the camera module of claim 6.