CN112929552A

CN112929552A - Camera device

Info

Publication number: CN112929552A
Application number: CN202110326104.1A
Authority: CN
Inventors: 丁志; 张扣文; 唐新科; 农开勋
Original assignee: Zhejiang Sunyu Zhiling Technology Co ltd
Current assignee: Zhejiang Sunyu Zhiling Technology Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-06-08
Also published as: CN116320695A; CN116055835A

Abstract

The invention relates to a camera device, which comprises a lens module 3, a front shell 1, a rear shell 2 and a fastening mechanism, wherein the front shell 1 is provided with a through hole 6, the lens module 3 comprises a lens module 15, a sensor plate 10 and a printed circuit board 11 connected with the sensor plate 10, the printed circuit board 11 is fixed on the rear shell 2, and the fastening mechanism is used for fixing the lens module 15 penetrating through the through hole 6 on the front shell 1. The camera device has high stability and reliability by the scheme that the front lens module is positioned and the printed circuit board is fixed at the rear end.

Description

Camera device

Technical Field

The present invention relates to a camera device. In particular, the present invention relates to a camera device having high stability and high reliability.

Background

With the spread of automobiles such as automobiles and artificial intelligence, the interior of automobiles needs to be equipped with ADAS (advanced driving assistance system) camera devices including monocular ADAS cameras or binocular ADAS cameras.

The traditional camera device for the motor vehicle is shown in the attached figures 1 to 3 of the specification. As shown in fig. 1, a conventional camera device generally includes a front case 1, a rear case 2, and a camera module 3. These components are assembled, for example, by screws 21 or the like to form a camera device as shown in fig. 3. In addition, as shown in fig. 2, the camera module 3 generally includes a lens 22, a lens holder 23, and a Printed Circuit Board Assembly (PCBA). The PCBA generally includes a photosensor 14 and a printed circuit board 11 integrated together, the photosensor 14 being capable of receiving an optical signal from the lens 22 and converting the optical signal to an electrical signal while transmitting the converted electrical signal to the printed circuit board 11. The light sensor 14 is integrated with the printed circuit board 11 to form a PCBA as a hard board. During assembly, the lens 22 is mounted on the lens holder 23, the lens holder 23 is fixed to the PCBA rigid board by screws 21, etc. to form the camera module 3, and finally, the entire camera module 3 can be fixed to the front case 1 or the rear case 2 by means of the PCBA rigid board by screws 21 or other various means known in the art.

In the above-described conventional camera device, the lens assembly of the lens 22 and the lens mount 23 is integrally located in front of the PCBA hard board, so that the center of gravity of the assembly is necessarily located in front of the PCBA hard board. This results in the lens assembly vibrating continuously as the vehicle jounces during operation of the vehicle. The further the center of gravity of the assembly is from the PCBA rigid board, the more severe the vibration. This vibration makes it possible for the connection between the lens assembly and the PCBA rigid board, the connection between the PCBA rigid board and the front or

rear housing

1, 2 and/or the connection between the lens 22 and the mirror mount 23 to loosen, thereby further making the vibration of the lens 22 relative to the vehicle body during operation of the vehicle more severe with the jolt of the vehicle. This results in a serious deficiency in the stability and reliability of the conventional camera device.

Disclosure of Invention

Problems to be solved by the invention

It is an object of the present invention to provide a camera device with high stability and high reliability which overcomes or at least reduces the disadvantages inherent in prior art camera devices as described in the background section above. That is, the present invention is to provide a camera device whose lens should be relatively small in vibration with respect to a vehicle body.

Means for solving the problems

The present invention relates to the following aspects:

aspect 1: a camera device comprises a lens module, a front shell and a rear shell, wherein the front shell is provided with a through hole, the rear shell is connected with the front shell to form a cavity between the front shell and the rear shell, wherein,

the lens module includes a lens module, a sensor board and a printed circuit board, and

the camera device further comprises a fastening mechanism,

wherein the content of the first and second substances,

the printed circuit board is positioned in the cavity and fixedly connected to the rear shell;

the lens module includes a lens barrel having a barrel front end and a barrel rear end, the lens barrel passing through the through hole such that the barrel front end is located outside the cavity and the barrel rear end is located inside the cavity,

the sensor board is located inside the cavity so that light passing through the lens barrel can reach the sensor on the sensor board, and the sensor board is also connected to the printed circuit board; and

the fastening mechanism is used for fixing the lens module to the front shell.

Aspect 2: the camera device according to aspect 1, wherein the sensor plate is fixedly attached to the lens barrel.

Aspect 3: the camera device according to aspect 2, wherein the sensor board is connected to the printed circuit board by a flexible flat cable.

Aspect 4: the camera device according to aspect 2, wherein the sensor board and/or the printed circuit board and a flexible board existing therebetween form a rigid-flex board.

Aspect 5: the camera device according to any one of aspects 1 to 4, wherein the lens module includes an integral lens module.

Aspect 6: the camera device according to any one of aspects 1 to 5, wherein,

the fastening mechanism comprises a nut, and the nut is arranged on the nut,

the lens barrel has a convex ring extending outward in a lens barrel radial direction at an outer periphery of a rear end of the barrel body, and

the lens barrel further has a screw thread formed on an outer periphery of a front end of the barrel body to be capable of being engaged with the nut,

wherein the content of the first and second substances,

the maximum outer diameter of the nut is larger than the inner diameter of the through hole,

the maximum outer diameter of the convex ring is larger than the inner diameter of the through hole, an

The nut is matched with the thread and clamps and fixes the lens barrel on the front shell by means of a convex ring positioned at the rear end of the barrel body.

Aspect 7: the camera device according to aspect 6, wherein the fastening mechanism further includes a spring washer between the nut and the front shell and/or between the convex ring and the front shell.

Aspect 8: the camera device according to any one of aspects 1 to 5, wherein,

the fastening mechanism comprises a nut, and the nut is arranged on the nut,

the lens barrel has a convex ring extending outward in a lens barrel radial direction at an outer periphery of a front end of the barrel body, and

the lens barrel further has a screw thread formed on an outer periphery of a rear end of the barrel body to be capable of being engaged with the nut,

wherein the content of the first and second substances,

the maximum diameter of the convex ring is larger than the inner diameter of the through hole, an

The nut is matched with the thread and clamps and fixes the lens barrel on the front shell by means of a convex ring positioned at the front end of the barrel body.

Aspect 9: the camera device according to aspect 8, wherein the fastening mechanism further includes a spring washer between the nut and the front shell and/or between the convex ring and the front shell.

Aspect 10: the camera device according to

aspect

8 or 9, wherein the nut has a recess, a perforation, or a projection on a surface facing the inside of the cavity, so that the nut can be screwed on a thread of a barrel rear end of the lens barrel by means of an adjustment jig or manually.

Aspect 11: the camera device according to any one of aspects 1 to 5, wherein,

the fastening mechanism comprises a circlip, preferably a disc spring, more preferably a diaphragm spring, and optionally an elastic pad,

the lens barrel is also provided with a shaft groove which is formed on the outer periphery of the front end of the barrel body and can be matched with the clamp spring,

wherein the content of the first and second substances,

the maximum outer diameter of the clamp spring is larger than the inner diameter of the through hole,

the maximum outer diameter of the convex ring is larger than the inner diameter of the through hole,

the snap spring is matched with the shaft groove and clamps and fixes the lens barrel on the front shell by means of a convex ring positioned at the rear end of the barrel body, an

The optional bullet pad is optionally located between the circlip and the front shell and/or optionally located between the torus and the front shell.

Aspect 12: the camera device according to any one of aspects 1 to 5, wherein,

the lens barrel is also provided with a shaft groove which is formed on the outer periphery of the rear end of the barrel body and can be matched with the clamp spring,

wherein the content of the first and second substances,

the snap spring is matched with the shaft groove and clamps and fixes the lens barrel on the front shell by means of a convex ring positioned at the front end of the barrel body,

Aspect 13: the camera device according to any one of aspects 1 to 5, wherein,

the fastening mechanism includes a latch structure and optionally a spring washer, and

the lens barrel has a convex ring extending outward in the radial direction of the lens barrel at the outer periphery of the front end of the barrel body,

wherein

The maximum diameter of the convex ring is larger than the inner diameter of the through hole,

the optional bullet pad is optionally located between the torus and the front shell,

the lock catch structure comprises a clasp which protrudes from the side wall of the through hole to the inside of the through hole and is fixedly connected with the side wall of the through hole, and an L/T-shaped groove which is positioned at the rear end of the cylinder body, wherein the L/T-shaped groove comprises a guide groove which extends from the end edge of the rear end of the cylinder body to the axial direction of the cylinder body, and a backstop groove which extends from one end of the guide groove far away from the end edge of the rear end of the cylinder body to the circumferential direction of the cylinder body, and the guide groove and the backstop groove form an L shape,

the dimension of the clasp matches the groove width of the L/T-shaped groove so that the clasp can move within the L/T-shaped groove, an

When in the mounting position, the clasp is accommodated in the backstop slot, and the clasp accommodated in the backstop slot causes the convex ring to cling to the front shell or causes the convex ring to cling to the front shell together with an optional bullet pad, thereby fixing the lens barrel to the front shell.

Aspect 14: a multi-view camera device comprising a front case, a rear case, and a plurality of lens modules as defined in any one of aspects 1 to 16.

Technical effects achieved by the invention

The object to be achieved by the present invention is achieved by the solution devised by the inventor of the present invention for positioning the front lens module and fixing the printed circuit board at the rear end. In the running process of the motor vehicle, the vibration amplitude of the lens module relative to the vehicle body is reduced to be very small, so that the good stability and reliability of the camera device are ensured.

In addition, with the fastening mechanism in the present invention, it is preferable to also allow the lens module to be further rotated about the optical axis of the lens barrel before and/or after being fixed to the front case. This is very useful in some cases, for example in the case of a multi-view camera device.

In addition, the camera device can be suitable for various types of modules (front view monocular, around view, back view, side view, in-cabin and the like), and has strong universality.

In fact, the camera device of the present invention may have a combination of the above advantages.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used 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 it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts. It should be noted that the drawings of the present specification are only schematic, and the sizes and the size ratios of the components depicted therein do not represent actual sizes and ratios of products, but are only for schematically representing the positional relationships or the connection relationships between the components. The dimensions of the components may be scaled differently for ease of illustration and understanding. Further, the same or similar reference numerals denote the same or similar members.

Fig. 1 is an exploded view schematically illustrating a conventional camera device of the related art.

Fig. 2 is an exploded view schematically illustrating a camera module included in the conventional camera apparatus of the related art shown in fig. 1.

Fig. 3 is an assembly view schematically illustrating a related art camera device as shown in fig. 1.

Fig. 4 is a side view schematically illustrating a lens module of the camera device of the present invention.

Fig. 5 is an exploded view schematically illustrating a preferred camera device of the present invention.

Fig. 6 is an exploded view schematically illustrating a lens module and a sensor plate included in the preferred camera device of the present invention shown in fig. 5.

Fig. 7 is an assembly view schematically illustrating the lens module and the sensor board included in the preferred camera device of the present invention shown in fig. 6 assembled together.

Fig. 8 is an assembly view schematically illustrating a preferred camera device of the present invention as shown in fig. 5.

Fig. 9 is a side view schematically illustrating a lens module and a nut tightening mechanism of another preferred camera device of the present invention.

Fig. 10 is an exploded view schematically illustrating a lens module and a snap spring fastening mechanism of still another preferred camera device according to the present invention.

Fig. 11 is a side view schematically illustrating a lens module and a circlip fastening mechanism included in still another preferred camera device of the present invention shown in fig. 10.

Fig. 12 is an exploded view schematically illustrating a lens module and a clip spring fastening mechanism of still another preferred camera device according to the present invention.

Fig. 13 is a side view schematically illustrating a lens module and a circlip fastening mechanism included in still another preferred camera device of the present invention shown in fig. 12.

Fig. 14 is an exploded view schematically illustrating a lens module and a locking structure included in still another preferred camera apparatus according to the present invention.

Fig. 15 is a side view schematically illustrating a lens module included in still another preferred camera device of the present invention as shown in fig. 14.

Fig. 16 is a side view schematically illustrating a lens module and a locker structure included in still another preferred camera device of the present invention shown in fig. 14 in a state not yet locked.

Fig. 17 is a side view schematically illustrating a lens module and a locker structure included in still another preferred camera device of the present invention shown in fig. 14 in a locked state.

Fig. 18 is an assembly view schematically illustrating a lens module and a locking structure included in still another preferred camera device of the present invention as shown in fig. 14.

Description of the reference numerals

1 front shell

2 rear shell

3 camera module

4 nut

5 spring cushion

6 through hole

7 lens barrel

8 screw thread

9 convex ring

10 sensor board

11 printed circuit board

12 soft flat cable

13 adhesive

14 sensor

15 lens module

16 axle groove

17 circlip

18 guide groove

19 retaining groove

20 clasp

21 screw

22 lens

23 microscope base

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: unless otherwise indicated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and values, etc., set forth in these embodiments should be construed as merely illustrative, and not a limitation.

The use of the word "comprising" or "comprises" and the like in the present invention means that the element preceding the word covers the element listed after the word and does not exclude the possibility of also covering other elements. In the present invention, the terms "front" and "rear" of the indicated orientation mean that along the optical axis of the lens barrel, the lens and the lens barrel are in the "front" direction of the sensor, and the sensor is in the "rear" direction of the lens and the lens barrel. In the present invention, the terms "inner", "outer", "axial", "radial" and "surrounding" etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and operation, and thus should not be construed as limiting the present invention, and when the absolute position of the described object is changed, the relative positional relationship may be changed accordingly. In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; they may be mechanically coupled, directly coupled, or indirectly coupled through intervening agents, both internally and/or in any other manner known to those skilled in the art. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

Hereinafter, the technical solution of the present invention will be further specifically described with reference to fig. 4 to 18.

In particular, the present invention relates to a camera device, which comprises a lens module 3, a front shell 1 and a rear shell 2, wherein the front shell 1 is provided with a through hole 6, the rear shell 2 is connected with the front shell 1 to form a cavity between the front shell 1 and the rear shell 2,

the lens module 3 includes a lens module 15, a sensor board 10 and a printed circuit board 11, and

the camera device further comprises a fastening mechanism,

wherein the content of the first and second substances,

the printed circuit board 11 is positioned in the cavity and fixedly connected to the rear shell 2;

the lens module 15 comprises a lens barrel 7, the lens barrel 7 having a barrel front end and a barrel rear end, the lens barrel 7 passing through the through hole 6 such that the barrel front end is located outside the cavity and the barrel rear end is located inside the cavity;

the sensor board 10 is located inside the cavity so that light passing through the lens barrel 7 can reach the sensor 14 on the sensor board 10, and the sensor board 10 is also connected to the printed circuit board 11; and

the fastening mechanism is used to fix the lens module 15 to the front case.

It will be understood by those skilled in the art that in the camera device as described above, the form of the front case 1 and the rear case 2 and the manner of connecting them are not particularly limited as long as the front case 1 and the rear case 2 are fixedly connected to each other in a fitting manner to form a cavity therebetween. Here, the term "cavity" means a closed space, the boundary of which should be understood to include: the outer surfaces of the front case 1 and the rear case 2; and a face defined by the boundary formed by the outer surface of the front and

rear housings

1 and 2 and the side walls of any holes, channels or slits present on the front and

rear housings

1 and 2. The space may be in communication with the outside by means of holes, channels or slits of any shape and size, etc. located on said front shell 1 and/or said rear shell 2. A person skilled in the art may consider that the front housing 1 and the rear housing 2 are fixedly connected to each other in a matching manner by means of a number of means, such as integral molding, casting, welding, adhesive bonding, screwing, riveting and/or bayonet fastening. In fact, in the present invention, the front shell 1 and the rear shell 2 may even be understood as a first fixing bracket and a second fixing bracket, respectively, which serve their respective functions, while there may be additional housings outside the brackets. In addition, there is no definite boundary between the front case 1 and the rear case 2, and in the case where they are regarded as one integral case (for example, in the case where they are integrally molded), the front case 1 and the rear case 2 may be regarded as a relatively front portion and a relatively rear portion of the integral case.

In the camera device as described above, the front case 1 and/or the rear case 2 may optionally further have another through hole in addition to the defined through hole 6, and the another through hole may be used for various purposes such as connection of the printed circuit board 11 to the outside and signal transmission (as shown in fig. 4, the rear case 2 has another through hole). Alternatively, the fixed mounting of the camera device on a motor vehicle, such as a car or the like, may also be achieved by means of further through holes present in the front and/or

rear housing

1, 2 and/or further means on the outer surface of the front and/or

rear housing

1, 2 known to the person skilled in the art, which may be for example protrusions on opposite sides of the front housing 1 as shown in fig. 1, 3 or 8.

In the camera device as described above, the lens barrel 7 of the lens module 15 is also optionally used to accommodate a lens. The sensor board 10 is located inside the cavity so that light passing through the lens barrel 7 through the optional lens can be transmitted to the sensor 14 on the sensor board 10. The sensor board 10 may be fixedly connected to the front case 1 and/or the rear case 2 and/or the printed circuit board 11 and/or the lens module 15 by any means known to those skilled in the art. Here, it is conceivable that the fixed connection is realized in various ways, for example by means of screws, rivets, adhesive, casting, welding, snap-fitting or integrated together.

In the camera device as described above, the sensor 14 is an optical sensor that is common in the art and is capable of receiving an optical signal from the lens barrel 7 and converting the optical signal into an electrical signal while transmitting the converted electrical signal to the printed circuit board 11.

In the camera device as described above, the connection manner of the sensor board 10 to the printed circuit board 11 is not particularly limited. For example, it is contemplated that they may be fixedly attached together by a variety of means such as screws, rivets, welding, adhesives, casting, and the like. It is even contemplated that the connection may be made as a PCBA hardboard with the sensor 14 integrated into the printed circuit board 11 as described in the background section above. In this case, the sensor 14 and the printed circuit board 11 are integrated to obtain a PCBA rigid board.

In the camera device as described above, it is preferable that the sensor plate 10 is fixedly attached to the lens barrel 7. Here, the manner of the connection is not particularly limited as long as the manner enables the sensor board 10 to be fixedly connected to the lens barrel 7 and enables light passing through the lens barrel 7 to reach the sensor 14 on the sensor board 10. Those skilled in the art will appreciate that this may be accomplished by various means, such as integral molding, casting, welding, adhesive bonding, screw fastening, rivet fastening, and/or bayonet fastening. For example, in a preferred camera device of the present invention, as shown in fig. 6 to 7, the lens barrel 7 is fixedly attached to the sensor board 10 by an adhesive 13.

In addition, when the sensor board 10 is fixedly connected to the lens barrel 7, it is more preferable that the sensor board 10 and the printed circuit board 11 are connected by a flexible connection. For example, it is preferable that the sensor board 10 is connected to the printed circuit board 11 by a flexible flat cable 12, as shown in fig. 5 to 7. It is also preferred that the sensor board 10 and/or the printed circuit board 11 form a rigid-flex board with a flexible board present between them, so that a flexible connection of the sensor board to the printed circuit board is achieved (this case not shown in the figures).

In the camera device as described above, the connection manner of the printed circuit board 11 and the rear case 2 is not particularly limited. As long as the manner enables the printed circuit board 11 to be fixedly attached to the rear case 2. The person skilled in the art can consider achieving this in a number of ways, such as by integral molding, casting, welding, adhesive bonding, screwing, riveting and/or bayonet fastening and even by soft connection.

In the camera device as described above, the sectional shapes of the through hole 6 and the lens barrel 7 are not particularly limited as long as they enable the fastening mechanism to fix the lens module 15 to the front case 1. For example, the cross-sectional shape may be a convex polygon, an approximately regular polygon, an ellipse, or a circle, with a circle being particularly preferred.

In the camera device as described above, the length ratio of the barrel front end and the barrel rear end of the lens barrel 7 is not particularly limited, but it is preferable that the boundary line between the barrel front end and the barrel rear end is such that the weight of the lens module 15 in the cavity outer portion and the weight in the cavity inner portion are small in the use state (for example, difference < 200%, preferably difference < 100%, more preferably difference < 50%, most preferably difference < 20%), which makes the amplitude of vibration of the lens module 15 during the operation of the motor vehicle relatively small.

In the camera device as described above, the lens module 15 may be a separate lens module (a lens module composed of a plurality of components that are fixedly coupled together) or an integrated lens module, but is preferably an integrated lens module. In the case where the lens module 15 is an integral type lens module, the lens barrel 7 is integrally molded. The integrated lens module enables the advantages of the invention to be more prominent.

In the camera device as described above, the fastening mechanism functions to head-fix the mirror module 15 to the front case 1. Those skilled in the art will recognize that fastening mechanisms including, but not limited to, the following can accomplish this:

mode 1 (as shown in fig. 5 to 8): the fastening mechanism comprises a nut 4. In this case, the lens barrel 7 has a collar 9 extending outward in a lens barrel radial direction at the outer periphery of the barrel rear end, and the lens barrel 7 further has a screw thread 8 formed on the outer periphery of the barrel front end to be capable of engaging with the nut 4, wherein the maximum outer diameter of the nut 4 is larger than the inner diameter of the through hole 6, the maximum outer diameter of the collar 9 is larger than the inner diameter of the through hole 6, the nut 4 engages with the screw thread 8 and clamps and fixes the lens barrel 7 to the front housing 1 by means of the collar 9 at the barrel rear end, thereby fixing the lens module 15 to the front housing 1, and finally forming a preferred camera device of the present invention as shown in fig. 8.

Mode 2 (shown in fig. 9): in a similar manner to mode 1, the fastening mechanism includes a nut 4. In this case, however, the lens barrel 7 has a collar 9 extending outward in a lens barrel radial direction at the outer periphery of the barrel front end, and the lens barrel 7 further has a screw thread 8 formed on the outer periphery of the barrel rear end to be capable of engaging with the nut 4, wherein the nut 4 has a maximum outer diameter larger than the inner diameter of the through hole 6 (the reference numeral of the through hole 6 is not designated in fig. 9), the maximum diameter of the collar 9 is larger than the inner diameter of the through hole 6, and the nut 4 engages with the screw thread 8 and holds the lens barrel 7 by means of the collar 9 at the barrel front end to the front housing 1, thereby fixing the lens module 15 to the front housing 1.

In the mode 2, it is also preferable to provide a recess, a perforation or a projection on the surface of the nut 4 facing the inside of the cavity, so that the nut 4 can be conveniently screwed on the thread 8 of the rear end of the lens barrel 7 (this case is not shown in the drawing) by using an adjusting jig or manually.

In the

above mode

1 or 2, the fastening mechanism preferably further includes an elastic pad 5 (the elastic pad is shown in fig. 5 and is not shown in fig. 9), and the elastic pad 5 may be located between the nut 4 and the front case 1 and/or may be located between the convex ring 9 and the front case 1. The elastic pad 5 is used for cooperating with the nut 4, so that the lens barrel 7 can be more stably fixed to the front case 1.

In the

above mode

1 or 2, it is preferable that the thread 8 is not limited to exist at the front end or the rear end of the cylinder, but continuously exists at the same time until reaching the convex ring 9, so that the nut 4 can tightly clamp and fix the lens barrel 7 to the front housing 1 during the mounting process.

Mode 3 (shown in fig. 12 and 13): the fastening mechanism comprises a snap spring 17, preferably a disc spring, more preferably a diaphragm spring. In this case, the lens barrel 7 has a collar 9 extending outward in a lens barrel radial direction at an outer periphery of a rear end of the barrel, and the lens barrel 7 further has a shaft groove 16 formed on an outer periphery of a front end of the barrel and capable of engaging with the snap spring 17, wherein a maximum outer diameter of the snap spring 17 is larger than an inner diameter of the through hole 6, a maximum outer diameter of the collar 9 is larger than an inner diameter of the through hole 6, and the snap spring 17 engages with the shaft groove 16 and clamps the lens barrel 7 to the front case 1 by means of the collar 9 at the rear end of the barrel, thereby fixing the lens module 15 to the front case 1.

Mode 4 (as shown in fig. 10 and 11): in a similar manner to mode 3, the fastening mechanism comprises a circlip 17, preferably a disc spring, more preferably a diaphragm spring. In this case, the lens barrel 7 has a collar 9 extending outward in a lens barrel radial direction at an outer periphery of a front end of the barrel, and the lens barrel 7 further has a shaft groove 16 formed on an outer periphery of a rear end of the barrel to be capable of engaging with the snap spring 17, wherein a maximum outer diameter of the snap spring 17 is larger than an inner diameter of the through hole 6, a maximum outer diameter of the collar 9 is larger than an inner diameter of the through hole 6, and the snap spring 17 engages with the shaft groove 16 and clamps the lens barrel 7 to the front case 1 by means of the collar 9 at the front end of the barrel, thereby fixing the lens module 15 to the front case 1.

Similarly to the above-described

modes

1 and 2, in the above-described

mode

3 or 4, the fastening mechanism preferably further includes a spring washer 5 (the spring washer is not shown in any of fig. 10 to 13), and the spring washer 5 may be located between the snap spring (preferably a disc spring, more preferably a diaphragm spring) 17 and the front case 1 and/or may be located between the protruding ring 9 and the front case 1. The function of the elastic pad 5 is to cooperate with the snap spring (preferably a disc spring, more preferably a diaphragm spring) 17 to enable the lens barrel 7 to be more stably fixed to the front case 1.

Mode 5 (as shown in fig. 14 to 18): the fastening mechanism includes a latch structure. In this case, the lens barrel 7 has a collar 9 extending outward in a lens barrel radial direction at an outer periphery of a front end of the barrel, wherein a maximum diameter of the collar 9 is larger than an inner diameter of the through hole 6, the locking structure includes a hook 20 protruding from a side wall of the through hole 6 toward an inside of the through hole 6 and fixedly attached to the side wall of the through hole 6, and an L/T-shaped groove (only the L-shaped groove is exemplarily shown in fig. 14 to 17) at a rear end of the barrel, the L/T-shaped groove includes a guide groove 18 extending from an end edge of the rear end of the barrel toward a barrel axial direction, and a retreat preventing groove 19 extending in a barrel circumferential direction at an end of the guide groove 18 remote from the rear end edge of the barrel, and the guide groove 18 and the retreat preventing groove 19 are L-shaped or T-shaped. The dimensions of the clasp 20 match the slot width of the L/T slot such that the clasp 20 is able to move within the L/T slot (as shown in the direction of the arrows in fig. 16 and 17). When the lens barrel 7 is mounted, the lens barrel 7 is moved relative to the housing 1 (in the direction indicated by the arrow in fig. 14) to move the hook 20 along the guide groove 18 to the end of the guide groove 18 (as shown in fig. 16), and the lens barrel 7 is rotated about the optical axis (in the direction indicated by the arrow in fig. 18) to receive the hook 20 in the retreat preventing groove 19 (as shown in fig. 17). The clasp 20 accommodated in the retaining groove 19 causes the surface of the collar 9 facing the front case 1 to cling to the outer surface of the periphery of the through hole 6 of the front case 1, so that the lens barrel 7 is fixed to the front case 1, and the lens module 15 is fixed to the front case 1.

In the mode 5, similarly to the above modes 1 to 4, the fastening mechanism preferably further includes an elastic pad 5. In the case of the presence of the spring washer 5, the spring washer 5 may be located between the collar 9 and the front shell 1. The elastic pad 5 is used for matching with the locking structure, so that the lens module 15 can be more stably fixed on the front shell 1.

In addition, in the mode 5, the fastening mechanism may include one or more sets of locking structures, and preferably, a plurality of sets of locking structures. In the case of multiple sets of snap features, they are preferably evenly distributed, i.e., there are multiple clips 20 and L/T-shaped slots that mate with each other. The clips 20 are preferably evenly distributed on the side wall of the through hole 6, and the L/T-shaped grooves are preferably evenly distributed at the rear end of the barrel. The size and shape of the sets of catch formations may be different but are preferably substantially the same.

In the above-described modes 1 to 5, the material, shape, and the like of the elastic pad 5 are not limited as long as they can achieve the above-described object. For example, the elastic pad 5 may be a material having elasticity, such as rubber or the like. The spring washer 5 may also be in the form of a spring, for example, a circlip, preferably a disc spring, more preferably a diaphragm spring.

It should be further noted that the manner of the fastening mechanism exemplified above is not limitative, and other manners are fully conceivable and practiced by those skilled in the art based on the above manner, for example, but not limited to, those skilled in the art can easily imagine that an internal thread is formed in the through hole 6, which can be engaged with an external thread formed on the outer circumference of the lens barrel 7 to fix the lens barrel 7 to the front case 1. These alternative ways of achieving the object of the invention are also possible and they are of course within the scope of protection of the invention.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

It should be understood that the above-mentioned embodiments are only for illustrating the present invention, and the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and its inventive concept within the technical scope of the present invention disclosed by the present invention, and shall be covered by the protection scope of the present invention.

Claims

1. A camera device comprises a lens module (3), a front shell (1) and a rear shell (2), wherein the front shell (1) is provided with a through hole (6), the rear shell (2) is connected with the front shell (1) to form a cavity between the front shell (1) and the rear shell (2),

the lens module (3) includes a lens module (15), a sensor board (10) and a printed circuit board (11), and

the camera device further comprises a fastening mechanism,

wherein the content of the first and second substances,

the printed circuit board (11) is positioned in the cavity and fixedly connected to the rear shell (2);

the lens module (15) comprises a lens barrel (7), the lens barrel (7) having a barrel front end and a barrel rear end, the lens barrel (7) passing through the through hole (6) such that the barrel front end is located outside the cavity and the barrel rear end is located inside the cavity;

the sensor board (10) is located inside the cavity so that light passing through the lens barrel (7) can reach a sensor (14) on the sensor board (10), and the sensor board (10) is also connected to the printed circuit board (11); and

the fastening mechanism is used for fixing the lens module (15) to the front shell (1).

2. The camera device according to claim 1,

the sensor plate (10) is fixedly connected to the lens barrel (7).

3. The camera device according to claim 2,

the sensor board (10) is connected to the printed circuit board (11) by a flex cable (12).

4. The camera device according to claim 2,

the sensor board (10) and/or the printed circuit board (11) form a rigid-flex board with a flexible board present therebetween.

5. The camera device according to claim 1,

the lens module (15) includes an integral lens module.

6. Camera arrangement according to one of the claims 1 to 5,

the fastening mechanism comprises a nut (4),

the lens barrel (7) has a convex ring (9) extending outward in the lens barrel radial direction at the outer periphery of the barrel rear end, and

the lens barrel (7) is also provided with a thread (8) which is formed on the outer periphery of the front end of the barrel body and can be matched with the nut (4),

wherein the content of the first and second substances,

the maximum outer diameter of the nut (4) is larger than the inner diameter of the through hole (6),

the maximum outer diameter of the convex ring (9) is larger than the inner diameter of the through hole (6), an

The nut (4) is matched with the thread (8) and clamps and fixes the lens barrel (7) on the front shell (1) by means of a convex ring (9) positioned at the rear end of the barrel body.

7. The camera device according to claim 6,

the fastening mechanism further comprises a spring washer (5), which spring washer (5) is located between the nut (4) and the front shell (1) and/or between the collar (9) and the front shell (1).

8. Camera arrangement according to one of the claims 1 to 5,

the fastening mechanism comprises a nut (4),

the lens barrel (7) has a convex ring (9) extending outward in the lens barrel radial direction at the outer periphery of the barrel front end, and

the lens barrel (7) is also provided with a thread (8) which is formed on the outer periphery of the rear end of the barrel body and can be matched with the nut (4),

wherein the content of the first and second substances,

the maximum diameter of the convex ring (9) is larger than the inner diameter of the through hole (6), an

The nut (4) is matched with the thread (8) and clamps and fixes the lens barrel (7) on the front shell (1) by means of a convex ring (9) positioned at the front end of the barrel body.

9. The camera device according to claim 8,

10. The camera device according to claim 8,

the nut (4) has a recess, a perforation or a projection on the surface facing the interior of the cavity, so that the nut (4) can be screwed onto the thread (8) at the rear end of the lens barrel (7) in a matched manner by means of an adjusting tool or manually.

11. Camera arrangement according to one of the claims 1 to 5,

the fastening mechanism comprises a circlip (17), preferably a disc spring, more preferably a diaphragm spring, and optionally an elastic pad (5),

the lens barrel (7) is also provided with a shaft groove (16) which is formed on the outer periphery of the front end of the barrel body and can be matched with the clamp spring (17),

wherein the content of the first and second substances,

the maximum outer diameter of the clamp spring (17) is larger than the inner diameter of the through hole (6),

the maximum outer diameter of the convex ring (9) is larger than the inner diameter of the through hole (6),

the snap spring (17) is matched with the shaft groove (16) and clamps and fixes the lens barrel (7) on the front shell (1) by means of a convex ring (9) positioned at the rear end of the barrel body, an

The optional spring washer (5) is optionally located between the circlip (17) and the front shell (1) and/or optionally located between the collar (9) and the front shell (1).

12. The camera device according to any one of claims 1 to 5,

the lens barrel (7) is also provided with a shaft groove (16) which is formed on the outer periphery of the rear end of the barrel body and can be matched with the clamp spring (17),

wherein the content of the first and second substances,

the snap spring (17) is matched with the shaft groove (16) and clamps and fixes the lens barrel (7) on the front shell (1) by means of a convex ring (9) positioned at the front end of the barrel body, an

13. Camera arrangement according to one of the claims 1 to 5,

the fastening mechanism comprises a catch structure and optionally an elastic pad (5), and

the lens barrel (7) is provided with a convex ring (9) which extends outwards along the radial direction of the lens barrel at the periphery of the front end of the barrel body,

wherein

The maximum diameter of the convex ring (9) is larger than the inner diameter of the through hole (6),

said optional spring washer (5) being optionally located between said collar (9) and said front shell (1),

the locking structure comprises a clasp (20) which protrudes from the side wall of the through hole (6) to the inside of the through hole and is fixedly connected with the side wall of the through hole, and an L/T-shaped groove which is positioned at the rear end of the barrel body, the L/T-shaped groove comprises a guide groove (18) which extends from the end edge of the rear end of the barrel body to the axial direction of the barrel body, and a retaining groove (19) which extends from one end of the guide groove far away from the end edge of the rear end of the barrel body to the circumferential direction of the barrel body, and the guide groove (18) and the retaining groove (19) are L-shaped or,

the dimension of the clasp (20) is matched with the groove width of the L/T-shaped groove so that the clasp (20) can move in the L/T-shaped groove, an

When in the mounted position, the clasp (20) is accommodated in the backstop slot (19), and the clasp (20) accommodated in the backstop slot (19) causes the collar (9) to cling to the front shell (1) or causes the collar (9) to cling to the front shell (1) together with an optional bullet pad (5), thereby securing the lens barrel (7) to the front shell (1).