CN209419700U - A kind of camera exempts from focusing structure - Google Patents

Abstract

The utility model relates to field of mechanical technique.A kind of camera exempts from focusing structure, including optical lens, the wiring board with imaging sensor, front cover and rear cover, the socket for being inserted into optical lens is offered on front cover, the inner wall that front cover is threadedly coupled front cover with optical lens is equipped at least two and is circumferentially arranged and for limiting the limited blocks of optical lens screw-in depth, and the junction of optical lens and front cover is sticked glue；Front cover and rear cover are detachably connected by fastening screw surrounds an accommodating chamber for being used to accommodate wiring board, and the junction of front cover and rear cover is equipped with a sealing ring；Wiring board is arranged in accommodating chamber, and wiring board and front cover are detachably connected by screw；Using the rear surface of limited block as the confined planes of wiring board, rear surface and the wiring board of limited block offset, and the front surface of limited block is the confined planes of optical lens.This patent realizes the control to optical lens and route plate spacing by limited block, avoids the triviality frequently focused in later period.

Description

A kind of camera exempts from focusing structure

Technical field

The utility model relates to field of mechanical technique, and in particular to camera.

Background technique

With the rise of automobile industry, vehicle-mounted high-definition camera also gradually receives the extensive attention of people, high-definition camera It is made of optical lens, camera front cover, the wiring board with imaging sensor, camera rear cover and harness, when reversing, R Extraneous image, by optical lens and imaging sensor, is changed into electric signal, then pass through software to camera by shelves trigger signal Imaging.

Currently, there are mainly two types of regulative modes for camera focal length: 1, the wiring board of fixing belt imaging sensor adjusts mirror Head；2, fixed lens adjust the wiring board with imaging sensor.Both modes, respectively there is superiority and inferiority.Advantage is that early period is designed Relatively easy, when later period camera assembles, focal length can reach optimum design geometry；Disadvantage is that camera assembling procedure is complicated, It needs by accurate production equipment, tooling, and production efficiency is lower.Thus, many camera manufacturers are intended to develop Completely new camera structure solves quickly to focus, and avoids the problems such as above-mentioned assembling is complicated, production efficiency is poor.

Utility model content

In view of the problems of the existing technology, the utility model provides a kind of camera and exempts from focusing structure, above-mentioned to solve At least one technical problem.

The technical solution of the utility model is: a kind of camera exempts from focusing structure, including optical lens, has image sensing Wiring board, front cover and the rear cover of device, which is characterized in that the socket for being inserted into optical lens, institute are offered on the front cover The rear and front end for stating socket is open, and the front cover is threadedly coupled with the optical lens, and the inner wall of the front cover is equipped at least It is described after two are circumferentially arranged and for limiting the limited blocks of optical lens screw-in depth, and the optical lens is rotated in place The junction of optical lens and the front cover, which is sticked, glue；

The front cover and the rear cover are detachably connected by fastening screw surrounds one for accommodating the appearance of the wiring board Receive chamber, the junction of the front cover and the rear cover is equipped with a sealing ring；

The wiring board is arranged in the accommodating chamber, and the wiring board is detachably connected with the front cover by screw It connects；

It take the rear surface of the limited block as the confined planes of the wiring board, the rear surface of the limited block and the route Plate offsets, and the front surface of the limited block is the confined planes of the optical lens.

This patent realizes the control to optical lens and route plate spacing by limited block by the structure of optimization camera System, avoids the triviality frequently focused in later period.In process of production, whether optical lens and wiring board assembly need to only be arrived Confined planes are checked, qualification can entrucking use, the time required to greatly reducing production, reduce cost.

It when assembly, is threadedly coupled by optical lens with front cover, and then optical lens is packed into front cover, until front cover glazing On the confined planes for learning camera lens, then with glue optical lens and front cover are fixed；After glue curing, wiring board is pacified by screw Dress is fixed on front cover；Sealing ring is packed into rear cover, then assembles with front cover, is locked by fastening screw.

It is further preferred that covering the annular recess offered for installing sealing ring after described；

The mounting hole being also provided with for passing through fastening screw is covered after described, the mounting hole setting is recessed in the ring-type The periphery of slot.

Convenient for guaranteeing the extruding in fastening screw rundown process to sealing ring, guarantee sealing effect.

It is further preferred that the section of the sealing ring is greater than 2 times of rectangle of axial length in a radical length.

Convenient for guaranteeing sealing effect.

It is further preferred that the front end and rear end of the sealing ring are equipped with annular projection.It is further ensured that sealing effect Fruit.

It is further preferred that the sealing ring is rubber waterproof circle.

It is further preferred that opening up on the front cover, there are four for the threaded hole across screw；

The periphery at two threaded hole settings that any two are oppositely arranged in four threaded holes is equipped with rearwardly projecting ring Shape boss；

The location hole for being inserted into the annular boss is offered on the wiring board.

Polarization by location hole, when convenient for wiring board installation.When being installed convenient for staff when wiring board, wiring board With the quick determination of the fixed position relative of both front covers.

It is further preferred that the rear end of the optical lens exceeds the open rearward end of the socket, the limited block setting At the rear of the socket；

And the rear end of the socket is arranged in the glue.

Convenient for guaranteeing glue to the fixed effect of front cover and optical lens.

It is further preferred that the front cover, the wiring board and the optical lens three surround for by optical frames Light derived from head imports the guide-lighting chamber of the imaging sensor on wiring board；

The cross-sectional area of the leaded light chamber is greater than the cross-sectional area of the socket.

Convenient for the coating of glue.

It is further preferred that the inside that the front cover surrounds the guide-lighting chamber is coated with a black glue coating.

Reduce interference.

Detailed description of the invention

Fig. 1 is the utility model perspective view of the explosion；

Fig. 2 is the utility model optical lens and the schematic cross-sectional view that front cover group loads；

Fig. 3 is the assembling schematic diagram of the utility model front cover and wiring board；

Fig. 4 is the assembling schematic diagram of the utility model front cover and rear cover；

Fig. 5 is the cross-sectional view of the utility model front cover；

Fig. 6 is the relative position schematic diagram of the utility model optical lens and wiring board.

In figure: 1 is optical lens, and 2 be front cover, and 3 be glue, and 4 be wiring board, and 5 be screw, and 6 be sealing ring, and 7 be rear cover, 8 be fastening screw, and 21 be socket, and 22 be limited block, and 221 be optical lens confined planes, and 222 be wiring board confined planes.

Specific embodiment

The utility model is described further with reference to the accompanying drawing.

Referring to Fig. 1 to Fig. 6, a kind of camera exempts from focusing structure, including optical lens 1, with the route of imaging sensor Plate 4, front cover 2 and rear cover 7, the socket 21 for being inserted into optical lens 1 is offered on front cover 2, and the rear and front end of socket 21 is equal Opening, front cover 2 are threadedly coupled with optical lens 1, and the inner wall of front cover 2 is equipped at least two and is circumferentially arranged and for limiting optical frames The limited block 22 of first 1 screw-in depth, and after optical lens is rotated in place, the junction of optical lens 1 and front cover 2, which is sticked, glue 3；Front cover 2 and rear cover 7 are detachably connected by fastening screw 8 surrounds one for accommodating the accommodating chamber of wiring board 4, and front cover 2 is with after The junction of lid 7 is equipped with a sealing ring 6；Wiring board 4 is arranged in accommodating chamber, and wiring board 4 and front cover 2 are removable by screw 5 Unload connection；Using the rear surface of limited block 22 as the confined planes (wiring board confined planes 222) of wiring board 4, the rear surface of limited block 22 It offsets with wiring board 4, the front surface of limited block is the confined planes (optical lens confined planes 221) of optical lens 1.

This patent realizes the control to optical lens 1 and 4 spacing of wiring board by limited block by the structure of optimization camera System, avoids the triviality frequently focused in later period.In process of production, only need to optical lens 1 and wiring board 4 assembly whether Checked to confined planes, qualification can entrucking use, greatly reduce production the time required to, reduce cost.

There are four fastening screw is set, there are four screw is set.

The assembly hole perpendicularity of front cover 2 and optical lens 1 requires within 0.02mm, the limit that front cover 2 and wiring board 4 assemble Plane planarity requirements are within 0.01mm.Size after front cover 2 and optical lens 1 and front cover 2 and wiring board 4 assemble is public Difference requires within the optical lens focal length margin of tolerance.

It when assembly, is threadedly coupled by optical lens 1 with front cover 2, and then optical lens 1 is packed into front cover 2, until front cover On 2 on the confined planes of optical lens 1, then it is with glue 3 that optical lens 1 and front cover 2 is fixed；After the solidification of glue 3, by wiring board 4 are fixed on front cover 2 by screw 5；Sealing ring 6 is packed into rear cover 7, is then assembled with front cover 2, passes through fastening screw 8 Locking.

The annular recess for installing sealing ring 6 is offered on rear cover 7；It is also provided on rear cover 7 for across fastening spiral shell The periphery of annular recess is arranged in the mounting hole of silk 8, mounting hole.Convenient for guaranteeing in 8 rundown process of fastening screw to sealing ring 6 Extruding, guarantee sealing effect.

The section of sealing ring 6 is greater than 2 times of rectangle of axial length in a radical length.Convenient for guaranteeing sealing effect.It is close The front end and rear end of seal 6 are equipped with annular projection.It is further ensured that sealing effect.Sealing ring 6 is rubber waterproof circle.

For the threaded hole across screw 5 there are four being opened up on front cover 2；Any two are oppositely arranged in four threaded holes Periphery at two threaded hole settings is equipped with rearwardly projecting annular boss；It offers on wiring board 4 for being inserted into annular boss Location hole.Polarization by location hole, when convenient for the installation of wiring board 4.When being installed convenient for staff when wiring board 4, line The quick determination of the fixed position relative of 2 the two of road plate 4 and front cover.

The rear end of optical lens 1 exceeds the open rearward end of socket, and the rear of socket is arranged in limited block；And glue 3 is arranged In the rear end of socket.Convenient for guaranteeing glue 3 to the fixed effect of front cover 2 and optical lens 1.

Front cover 2, wiring board 4 and 1 three of optical lens surround for light derived from optical lens 1 to be imported wiring board The guide-lighting chamber of imaging sensor on 4；The cross-sectional area of guide-lighting chamber is greater than the cross-sectional area of socket.Convenient for glue Coating.The inside that front cover surrounds guide-lighting chamber is coated with a black glue coating.Reduce interference.The induction direction direction of imaging sensor Optical lens.

Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill people of the art For member, without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications Also it should be regarded as the protection scope of the utility model.

Claims (8)

1. a kind of camera exempts from focusing structure, including optical lens, the wiring board with imaging sensor, front cover and rear cover, It is characterized in that, offering the socket for being inserted into optical lens on the front cover, the rear and front end of the socket is open, institute It states front cover to be threadedly coupled with the optical lens, the inner wall of the front cover is equipped at least two and is circumferentially arranged and for limiting optics The limited block of camera lens screw-in depth, and after the optical lens is rotated in place, the junction of the optical lens and the front cover Sticking has glue；

The front cover and the rear cover are detachably connected by fastening screw surrounds an accommodating chamber for being used to accommodate the wiring board, The junction of the front cover and the rear cover is equipped with a sealing ring；

The wiring board is arranged in the accommodating chamber, and the wiring board is detachably connected with the front cover by screw；

It take the rear surface of the limited block as the confined planes of the wiring board, the rear surface of the limited block and the wiring board phase It supports, the front surface of the limited block is the confined planes of the optical lens.

2. a kind of camera according to claim 1 exempts from focusing structure, it is characterised in that: cover to offer after described and be used for The annular recess of sealing ring is installed；

The mounting hole being also provided with for passing through fastening screw is covered after described, the annular recess is arranged in the mounting hole Periphery.

3. a kind of camera according to claim 1 exempts from focusing structure, it is characterised in that: the section of the sealing ring is in one Radical length is greater than 2 times of rectangle of axial length.

4. a kind of camera according to claim 3 exempts from focusing structure, it is characterised in that: the front end of the sealing ring and Rear end is equipped with annular projection.

5. a kind of camera according to claim 4 exempts from focusing structure, it is characterised in that: the sealing ring is rubber waterproof Circle.

6. a kind of camera according to claim 1 exempts from focusing structure, it is characterised in that: there are four being opened up on the front cover For passing through the threaded hole of screw；

It is convex that the periphery at two threaded hole settings that any two are oppositely arranged in four threaded holes is equipped with rearwardly projecting ring-type Platform；

The location hole for being inserted into the annular boss is offered on the wiring board.

7. a kind of camera according to claim 1 exempts from focusing structure, it is characterised in that: the rear end of the optical lens is super The rear of the socket is arranged in the open rearward end of the socket out, the limited block；

And the rear end of the socket is arranged in the glue.

8. a kind of camera according to claim 7 exempts from focusing structure, it is characterised in that: the front cover, the wiring board And the optical lens three surrounds leading for the imaging sensor for importing light derived from optical lens on wiring board Optical cavity room；

The cross-sectional area of the leaded light chamber is greater than the cross-sectional area of the socket.