CN217904491U

CN217904491U - Camera module

Info

Publication number: CN217904491U
Application number: CN202221708064.3U
Authority: CN
Inventors: 郭良伟; 董育灵; 黄晓胜
Original assignee: Huizhou Desay SV Automotive Co Ltd
Current assignee: Huizhou Desay SV Automotive Co Ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-11-25
Anticipated expiration: 2032-07-04

Abstract

The utility model belongs to the technical field of the camera, a camera module is disclosed, which comprises a shell component and a lens, wherein a containing cavity is formed inside the shell component, the shell component comprises a front shell, a lens hole communicated with the containing cavity is formed on the front shell, the lens hole comprises a connecting section through hole, and an inner thread is arranged on the inner wall of the connecting section through hole; the outer wall of camera lens is provided with external screw thread and ring flange, the camera lens is worn to locate the mirror hole, the external screw thread with internal thread adaptation is connected, the ring flange is located the external screw thread is kept away from hold one side in chamber, just the ring flange butt in preceding shell deviates from hold the terminal surface in chamber. The utility model discloses a camera module is through shortening the size chain to improve the precision.

Description

Camera module

Technical Field

The utility model relates to a camera technical field especially relates to a camera module.

Background

With the development of the automobile industry, the auxiliary driving and the automatic driving become more and more popular, and a high-grade driving auxiliary camera, such as a monocular camera or a binocular camera, needs to be assembled inside the automobile, wherein the cost of the monocular camera is lower than that of the binocular camera, and the calculation magnitude is not complex than that of the binocular camera, so that the assembly of the monocular camera on the automobile is more suitable in some cases. The front cover and the rear cover of the existing monocular camera are usually produced by a die-casting process, and the requirement of the sealing performance of a product is met by a screw and a sealing ring locking and pressing mode, but the position error and the angle error are large due to the fact that a lens and a front shell are too long in a size chain, and the lens and the front shell are connected in a bonding mode through glue, so that the lens is easy to fall off when being subjected to external force.

Therefore, a camera module is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at: the utility model provides a camera module shortens the size chain, improves the precision.

To achieve the purpose, the utility model adopts the following technical proposal:

a camera module, comprising:

the lens comprises a shell assembly, a lens body and a lens cover, wherein an accommodating cavity is formed inside the shell assembly, the shell assembly comprises a front shell, a lens hole communicated with the accommodating cavity is formed in the front shell, the lens hole comprises a connecting section through hole, and an internal thread is arranged on the inner wall of the connecting section through hole;

the camera lens, the outer wall of camera lens is provided with external screw thread and ring flange, the camera lens is worn to locate the mirror hole, the external screw thread with internal thread adaptation is connected, the ring flange is located the external screw thread is kept away from hold one side in chamber, just the ring flange butt in the front shell deviates from hold the terminal surface in chamber.

As an optional technical solution, the outer wall of the lens is closely sleeved with a first sealing ring, the first sealing ring is located between the external thread and the flange plate, and the first sealing ring is closely abutted against the inner wall of the lens hole.

As an optional technical solution, the first sealing ring abuts against the flange.

As an optional technical scheme, a sealing groove is formed in the outer wall of the lens, the sealing groove is located on one side, close to the external thread, of the flange, and the first sealing ring is arranged in the sealing groove in a sealing mode.

As an optional technical scheme, the mirror hole further comprises a sealing section through hole, the sealing section through hole is located on one side, away from the accommodating cavity, of the connecting section through hole, the inner diameter of the sealing section through hole is larger than that of the connecting section through hole, and the outer wall of the first sealing ring is tightly abutted to the inner wall of the sealing section through hole.

As an optional technical solution, the camera module further includes a first fastener, the housing assembly further includes a rear shell, a first connecting hole is formed in the rear shell, a second connecting hole is formed in the front shell, the first fastener penetrates through the first connecting hole and the second connecting hole, the first fastener is used for fixedly connecting the front shell and the rear shell, and the front shell and the rear shell are enclosed to form the accommodating cavity.

As an optional technical solution, the camera module further includes a second sealing ring, a first step is disposed at a port of the front shell facing the rear shell, a second step is disposed at a port of the rear shell facing the front shell, the first step is adapted to the second step, and the second sealing ring is tightly abutted between the first step and the second step to seal a gap between the first step and the second step.

As an alternative solution, the outer wall of the front shell is flush with the outer wall of the rear shell.

As an optional technical solution, the camera module further includes a connector and a second fastener, a third connecting hole is formed in the connector, a fourth connecting hole is formed in a side of the housing assembly away from the lens, the second fastener penetrates through the third connecting hole and the fourth connecting hole, and the second fastener is used for fixedly connecting the connector and the housing assembly.

As an optional technical solution, the camera module further includes a circuit board and a sensor, the circuit board is fixedly disposed in the accommodating cavity, and the sensor is bonded to one side of the circuit board facing the lens.

The beneficial effects of the utility model reside in that:

the utility model provides a camera module, this camera module include casing subassembly and camera lens, the utility model discloses a threaded connection is adopted with preceding shell to the camera lens to shortened the size chain of camera lens with preceding shell, improved the installation accuracy of camera lens on preceding shell, thereby satisfy the requirement.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and examples;

fig. 1 is an exploded view of a camera module according to an embodiment;

fig. 2 is a sectional view of the camera module according to the embodiment;

FIG. 3 is a sectional view of the housing assembly according to the embodiment;

FIG. 4 is a schematic structural diagram of a front case according to an embodiment;

fig. 5 is a schematic structural diagram of a lens according to an embodiment.

In the figure:

1. a housing assembly; 11. an accommodating chamber; 12. a front housing; 121. a mirror hole; 122. an internal thread; 123. a connecting section through hole; 124. a sealing section through hole; 125. a first step; 13. a rear housing; 131. a second step; 2. a lens; 21. an external thread; 22. a flange plate; 23. a sealing groove; 3. a first seal ring; 4. a first fastener; 5. a second seal ring; 6. a connector; 7. a second fastener; 8. a circuit board; 9. a sensor.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, it is to be understood that the terms "upper", "lower", "left", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings for convenience of description and simplicity of operation, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be in any way understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to "an embodiment," "an example" or the like are intended to 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.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 5, the present embodiment provides a camera module, which includes a housing assembly 1 and a lens 2, wherein a containing cavity 11 is formed inside the housing assembly 1, the housing assembly 1 includes a front shell 12, a lens hole 121 communicated with the containing cavity 11 is formed on the front shell 12, the lens hole 121 includes a connecting section through hole 123, and an inner wall of the connecting section through hole 123 is provided with an internal thread 122; the outer wall of camera lens 2 is provided with external screw thread 21 and ring flange 22, and mirror hole 121 is worn to locate by camera lens 2, and external screw thread 21 and internal thread 122 adaptation are connected, and ring flange 22 is located external screw thread 21 and keeps away from the one side that holds chamber 11, and ring flange 22 butt deviates from the terminal surface that holds chamber 11 in preceding shell 12.

Specifically, for example, with the monocular camera, when assembling, a clamping device in the automated production equipment, for example, a flange 22 of the lens 2 of this application is clamped by a manipulator, the body of the lens 2 is prevented from being directly clamped, so as to protect the body of the lens 2 from being damaged by clamping, it is ensured that the lens located inside the lens 2 is not affected by external force, one end of the lens 2 provided with the external thread 21 extends into the lens hole 121 of the front shell 12, and the lens 2 rotates relative to the front shell 12, thereby the external thread 21 is connected with the internal thread 122, after the external thread 21 and the internal thread 122 complete adaptation, one section of the lens 2 provided with the external thread 21 corresponds to the connecting section through hole 123, the flange 22 abuts against the end face of the front shell 12 deviating from the accommodating cavity 11, the lens 2 cannot extend into the lens hole 121 any more, so as to prevent one end of the lens 2 provided with the external thread 21 from completely penetrating through the connecting section through hole 123 to cause the lens 2 to be loosened relative to the front shell 12, and the flange 22 can isolate the lens hole 121 from the outside, thereby preventing external dust and impurities from entering the accommodating cavity 11. The lens 2 and the front shell 12 of the embodiment are in threaded connection, so that the size chain of the lens 2 and the front shell 12 is shortened, the installation accuracy of the lens 2 on the front shell 12 is improved, and the requirements are met. The internal thread 122 is arranged on the inner wall of the lens hole 121, the external thread 21 is arranged on the outer wall of the lens 2, the external thread 21 and the internal thread 122 of the embodiment are connected in a matching manner, and only the manufacturing error A1 of the internal thread 122, the manufacturing error A2 of the external thread 21 and the assembling error A3 of the external thread 21 and the internal thread 122 exist, so that the size chain between the front shell 12 and the lens 2 is shortened, the position error of the lens 2 on the front shell 12 is reduced, the precision requirement is met, the manufacturing error A1 of the internal thread 122 and the manufacturing error A2 of the external thread 21 can be improved by improving the manufacturing process, and the mounting precision of the lens 2 on the front shell 12 can be further improved. And the length of the connecting section through hole 123 and the length of the section of the lens 2 provided with the external thread 21 can be set according to actual needs, for example, the length of the connecting section through hole 123 is set to be a first preset value, the length of the section of the lens 2 provided with the external thread 21 is set to be a second preset value, the size precision and the position precision of the lens hole 121 can be ensured through secondary processing CNC, the manufacturing error A1 of the internal thread 122 is reduced, the size precision of the lens 2 can be ensured through secondary processing CNC, the manufacturing error A2 of the external thread 21 is reduced, the high-precision lens 2 is installed in the high-precision lens hole 121, and the relative position precision of the lens 2 and the front shell 12 and the angle precision between the lens 2 and the front shell 12 are more accurate.

Optionally, the outer wall of the lens 2 is tightly sleeved with the first sealing ring 3, the first sealing ring 3 is located between the external thread 21 and the flange plate 22, and the first sealing ring 3 is tightly abutted to the inner wall of the lens hole 121. First sealing washer 3 can cushion the impact of ring flange 22 to preceding shell 12, and first sealing washer 3 can also seal the clearance between ring flange 22 and preceding shell 12 simultaneously to avoid external dust impurity to pass mirror hole 121 and enter into and hold in the chamber 11

Optionally, the first sealing ring 3 abuts the flange 22. In the process that the lens 2 extends into the lens hole 121, the flange plate 22 can push the first sealing ring 3, so as to prevent the first sealing ring 3 from sliding on the outer wall of the lens 2.

Optionally, a sealing groove 23 is formed in the outer wall of the lens 2, the sealing groove 23 is located on one side of the flange plate 22 close to the external thread 21, and the first sealing ring 3 is hermetically arranged in the sealing groove 23.

Optionally, the mirror hole 121 further includes a sealing section through hole 124, the sealing section through hole 124 is located on one side of the connecting section through hole 123 far away from the accommodating cavity 11, an inner diameter of the sealing section through hole 124 is greater than an inner diameter of the connecting section through hole 123, and an outer wall of the first sealing ring 3 is tightly abutted to an inner wall of the sealing section through hole 124. When lens 2 stretched into mirror hole 121, the one end that 2 less one ends of camera lens diameter were equipped with external screw thread 21 promptly camera lens 2 stretched into the less linkage segment through-hole 123 of diameter after stretching into the great sealed section through-hole 124 of diameter earlier, can lead to the one end that camera lens 2 was provided with external screw thread 21 promptly through sealed section through-hole 124 earlier to guarantee the alignment rate of camera lens 2 on preceding shell 12, reduce the probability of colliding with of external screw thread 21 and mirror hole 121 inner wall of camera lens 2.

Optionally, the camera module further includes a first fastener 4, the housing assembly 1 further includes a rear shell 13, a first connecting hole has been opened on the rear shell 13, a second connecting hole has been opened on the front shell 12, the first fastener 4 is penetrated through the first connecting hole and the second connecting hole, the first fastener 4 is used for fixedly connecting the front shell 12 with the rear shell 13, and the front shell 12 and the rear shell 13 enclose to form the accommodating cavity 11. The first fastening member 4 can be selected as a screw, the first connection hole and/or the second connection hole are/is a threaded hole, the front shell 12 is connected with the rear shell 13 through the screw, and the installation error and the manufacturing error of the rear shell 13 cannot be accumulated on a size chain between the lens 2 and the front shell 12, so that the installation accuracy of the lens 2 on the front shell 12 is ensured.

Optionally, the camera module further includes a second sealing ring 5, a first step 125 is disposed at a port of the front shell 12 facing the rear shell 13, a second step 131 is disposed at a port of the rear shell 13 facing the front shell 12, the first step 125 is adapted to the second step 131, and the second sealing ring 5 is tightly abutted between the first step 125 and the second step 131 to seal a gap between the first step 125 and the second step 131. The sealing performance between the front shell 12 and the rear shell 13 is enhanced through the second sealing ring 5, and external dust and impurities are prevented from leaking into the accommodating cavity 11.

Optionally, the outer wall of the front shell 12 is flush with the outer wall of the rear shell 13 to ensure the aesthetic appearance of the housing assembly 1.

Optionally, the camera module further includes a connector 6 and a second fastener 7, a third connecting hole is formed in the connector 6, a fourth connecting hole is formed in one side of the housing assembly 1, which is away from the lens 2, the second fastener 7 penetrates through the third connecting hole and the fourth connecting hole, and the second fastener 7 is used for fixedly connecting the connector 6 and the housing assembly 1. Specifically, the fourth connecting hole is formed in the rear case 13, the second fastener 7 is a screw, the third connecting hole and/or the fourth connecting hole is a threaded hole, the connector 6 is connected with the rear case 13 through the screw, and the installation error of the connector 6 on the rear case 13 cannot be accumulated on a size chain between the lens 2 and the front case 12, so that the installation accuracy of the lens 2 on the front case 12 is ensured.

Optionally, the camera module further includes a circuit board 8 and a sensor 9, the circuit board 8 is fixedly disposed in the accommodating cavity 11, and the sensor 9 is bonded to one side of the circuit board 8 facing the lens 2.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides a camera module which characterized in that includes:

the endoscope comprises a shell assembly (1), wherein a containing cavity (11) is formed inside the shell assembly (1), the shell assembly (1) comprises a front shell (12), a lens hole (121) communicated with the containing cavity (11) is formed in the front shell (12), the lens hole (121) comprises a connecting section through hole (123), and an internal thread (122) is arranged on the inner wall of the connecting section through hole (123);

camera lens (2), the outer wall of camera lens (2) is provided with external screw thread (21) and ring flange (22), camera lens (2) are worn to locate mirror hole (121), external screw thread (21) with internal thread (122) adaptation is connected, ring flange (22) are located external screw thread (21) are kept away from hold one side of chamber (11), just ring flange (22) butt in preceding shell (12) deviate from hold the terminal surface of chamber (11).

2. The camera module according to claim 1, wherein a first sealing ring (3) is tightly sleeved on an outer wall of the lens (2), the first sealing ring (3) is located between the external thread (21) and the flange (22), and the first sealing ring (3) is tightly abutted against an inner wall of the lens hole (121).

3. The camera module according to claim 2, characterized in that the first sealing ring (3) abuts against the flange (22).

4. The camera module according to claim 3, wherein a sealing groove (23) is formed in an outer wall of the lens (2), the sealing groove (23) is located on one side of the flange (22) close to the external thread (21), and the first sealing ring (3) is sealingly disposed in the sealing groove (23).

5. The camera module according to claim 4, wherein the lens hole (121) further comprises a sealing section through hole (124), the sealing section through hole (124) is located on one side of the connecting section through hole (123) far away from the accommodating cavity (11), the inner diameter of the sealing section through hole (124) is larger than that of the connecting section through hole (123), and the outer wall of the first sealing ring (3) is tightly abutted to the inner wall of the sealing section through hole (124).

6. The camera module according to claim 1, further comprising a first fastener (4), wherein the housing assembly (1) further comprises a rear housing (13), the rear housing (13) has a first connecting hole, the front housing (12) has a second connecting hole, the first fastener (4) is inserted into the first connecting hole and the second connecting hole, the first fastener (4) is used for fixedly connecting the front housing (12) and the rear housing (13), and the front housing (12) and the rear housing (13) enclose the accommodating cavity (11).

7. The camera module according to claim 6, characterized in that the camera module further comprises a second sealing ring (5), a first step (125) is provided at a port of the front housing (12) facing the rear housing (13), a second step (131) is provided at a port of the rear housing (13) facing the front housing (12), the first step (125) is adapted to the second step (131), and the second sealing ring (5) is tightly abutted between the first step (125) and the second step (131) to seal a gap between the first step (125) and the second step (131).

8. The camera module according to claim 7, wherein the outer wall of the front housing (12) is arranged flush with the outer wall of the rear housing (13).

9. The camera module according to claim 1, further comprising a connector (6) and a second fastening member (7), wherein a third connecting hole is formed in the connector (6), a fourth connecting hole is formed in a side of the housing assembly (1) facing away from the lens (2), the second fastening member (7) penetrates through the third connecting hole and the fourth connecting hole, and the second fastening member (7) is used for fixedly connecting the connector (6) and the housing assembly (1).

10. The camera module according to claim 1, further comprising a circuit board (8) and a sensor (9), wherein the circuit board (8) is fixedly disposed in the accommodating cavity (11), and the sensor (9) is bonded to a side of the circuit board (8) facing the lens (2).