CN217770229U

CN217770229U - Vehicle-mounted camera

Info

Publication number: CN217770229U
Application number: CN202222133487.3U
Authority: CN
Inventors: 徐丽涵; 李文超; 董洪涛; 张智卜
Original assignee: Beijing Jingwei Hirain Tech Co Ltd
Current assignee: Beijing Jingwei Hirain Tech Co Ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2022-11-08
Anticipated expiration: 2032-08-15

Abstract

The embodiment of the utility model provides an on-vehicle camera, including first casing, be provided with the camera lens on the first terminal surface of first direction is followed to first casing, first casing is provided with the recess on the second terminal surface of camera lens is kept away from along the first direction, location support structure sets up on the interior terminal surface of recess, the PCB board passes through location support structure location and sets up in the recess, in the first direction, the second casing passes through connecting piece fastening connection with first casing, seal the recess, lamination structure sets up between PCB board and second casing, when second casing and first casing fastening connection, lamination structure keeps away from the terminal surface of second casing and the laminating of the surface that first casing was kept away from to the PCB board, PCB board extrusion locking is fixed. The fixing mode that the positioning support structure and the press-fit structure are adopted to replace screws to fix the PCB can reduce the internal stress borne by the PCB, solve the problems of unevenness of the PCB and easy screw slipping of the screws, and ensure the imaging quality of the camera.

Description

Vehicle-mounted camera

Technical Field

The utility model relates to a camera technical field particularly, relates to an on-vehicle camera.

Background

With the rapid development of automotive electronics, vehicle-mounted cameras have become indispensable hardware for traffic safety, and various auxiliary devices of high-end automobiles are equipped with multiple cameras to assist drivers in parking or triggering emergency brakes.

The Printed Circuit Board (PCB) is an important component of the vehicle-mounted camera, accurately positions the PCB, and ensures that the PCB is not subjected to excessive stress, thereby enabling the camera to better image. At present, the fixed mode of PCB board adopts screw fastening mostly in the camera, and this kind of fastening mode not only leads to PCB board assembly unevenness because of the moment of torsion difference when the screw assembly easily, influences the image quality, and screw fastening arouses the smooth silk easily and damages the PCB board, makes the PCB board scrap, has increased the cost.

SUMMERY OF THE UTILITY MODEL

The present description provides a vehicle camera to overcome at least one technical problem in the prior art.

According to an embodiment of the present specification, there is provided an in-vehicle camera including:

a first shell, a lens is arranged on a first end surface of the first shell along a first direction, a groove is arranged on a second end surface of the first shell far away from the lens along the first direction,

a positioning support structure arranged on the inner end surface of the groove,

a PCB positioned and arranged in the groove by the positioning support structure,

a second housing, which is fastened with the first housing through a connector in the first direction to close the groove,

the pressing structure is arranged between the PCB and the second shell, when the second shell is fixedly connected with the first shell through the connecting piece, the end face, far away from the second shell, of the pressing structure is attached to the surface, far away from the first shell, of the PCB in the first direction, and the PCB is extruded, locked and fixed.

In the technical scheme, the fastening structure combining the positioning support structure and the pressing structure is adopted, so that the problems that imaging quality is influenced due to the fact that the PCB is not flat due to a screw fastening mode and the PCB is scrapped due to screw sliding are avoided, meanwhile, the internal stress of the PCB is reduced, and the imaging quality of the vehicle-mounted camera can be improved.

Optionally, the positioning support structure includes:

a support table disposed on the inner end surface of the groove,

at least one positioning boss arranged on the edge of the support platform,

the PCB board is provided with a notch matched with the positioning boss, and the PCB board is positioned on the supporting table through the positioning boss.

In this technical scheme, adopt the location bearing structure of brace table and at least one location boss, the brace table not only can play the effect of support to the PCB board, still can be convenient for the PCB board quick heat dissipation of PCB board on the shell casing of vehicle-mounted camera with the heat transfer that the PCB board during operation produced, simultaneously, the location boss still can play the effect of accurate positioning to the PCB board.

Further optionally, the positioning support structure further includes three positioning pillars, the number of the positioning bosses is three, the three edges of the support platform are respectively provided with one positioning boss, each positioning boss is respectively provided with one positioning pillar,

the PCB board includes first PCB board and the second PCB board of connecting through the connector, trilateral of first PCB board be provided with respectively with three location boss looks adaptation the breach, the three of first PCB board the breach is blocked respectively and is located threely on the boss of location, make first PCB board location sets up prop up supporting bench, the trilateral of second PCB board be provided with respectively with three the locating hole of reference column looks adaptation, it is three the reference column is worn to establish respectively the three of second PCB board the locating hole makes the second PCB board location sets up threely on the boss of location.

In this technical scheme, adopt first PCB board and the second PCB board of connecting through the connector, the board area of PCB board has been increased, thereby make the PCB board can place more or bigger device, so that the later stage improves the image picture quality or incorporates algorithm discernment scheduling problem into, and simultaneously, the location boss that adopts triangle-shaped structure to distribute supports the second PCB board, and is more firm, and further fix a position first PCB board through the location boss, further fix a position the second PCB board through the reference column, be favorable to realizing the accurate positioning of PCB board.

Still further optionally, the supporting platform is a groove structure recessed in the first direction, the shape and size of the first PCB are the same as those of the supporting platform, and the first PCB is embedded in the supporting platform.

In this technical scheme, the brace table adopts the groove structure to the indent, and the shape size phase-match of its shape size and PCB board not only can play the radiating effect of support, still can tentatively fix a position the PCB board.

Still further optionally, the press-fit structure includes:

the fixing ring is sleeved on each positioning boss respectively, the fixing ring is abutted with the first end face of the second shell along the first direction and the first PCB close to the first surface of the second shell along the first direction, the fixing ring is abutted with the second end face of the second shell along the first direction and the first surface of the second shell along the first direction and the second PCB close to the second end face of the second shell along the first direction, and the height of the fixing ring is greater than the distance between the first surface of the first PCB and the first surface of the second PCB in the first direction,

the pressure bearing pads are respectively sleeved with one on each positioning column, the pressure bearing pads are arranged along the first direction and far away from the first end face of the second shell and the second PCB are arranged along the first direction and close to the second surface of the second shell in an abutting mode, the pressure bearing pads are arranged along the first direction and close to the second end face of the second shell and close to the first surface of the first shell in the first direction in an abutting mode.

In this technical scheme, adopt the pressfitting structure that retainer plate and pressure-bearing pad combined together, it is fixed to lock first PCB board and second PCB board, the transmission of power between second casing and the second PCB board and between second PCB board and the first PCB board has been realized, the fixing to the PCB board has been accomplished, not only can solve the problem of PCB board unevenness and the smooth silk of easy because the mounting screw leads to, still can reduce the internal stress that the PCB board received, avoid leading to pad or soldering tin to tear the problem that forms and open circuit because the PCB board receives too big stress, the imaging quality of on-vehicle camera has been guaranteed.

Still further optionally, the location boss is the semicircle column type, the rectangle side of location boss with the inside wall of recess links to each other, the first semicircle terminal surface that the second casing was kept away from to the location boss is the notch cuttype terminal surface, the first semicircle terminal surface of location boss is close to the part of the inside wall of recess with the interior terminal surface of recess links to each other, the first semicircle terminal surface of location boss keeps away from the part of the inside wall of recess with the location boss links to each other,

the fixing ring is a cylinder with a semicircular ring cross section, the inner circle radius of the fixing ring is the same as that of the positioning boss, and the fixing ring is annularly arranged on the arc-shaped side face of the positioning boss.

In this technical scheme, adopt the location boss of semicircle columnar order, utilize the convex side of location boss to fix a position first PCB board, positioning accuracy is higher, and simultaneously, the retainer plate of the cylinder of corresponding semicircle ring that adopts is littleer with the area of contact of first PCB board, second PCB board, can effectively avoid occupying the too big placing that influences the device of PCB face area.

Still further optionally, three fixing columns are arranged on the first surface of the second casing, the arrangement positions of the three fixing columns correspond to the arrangement positions of the three positioning columns, fixing holes corresponding to the positioning columns are formed in each fixing column, one end, close to the second casing, of each positioning column is inserted into the corresponding fixing hole, the pressure-bearing pad is arranged between the fixing column and the second PCB, and the second end face of the pressure-bearing pad is abutted to the fixing column.

In this technical scheme, be close to the reference column the one end of second casing is inserted and is located the fixed orifices, can guarantee the precision of reference column to the location of second PCB board, still compresses tightly the bearing pad through the fixed column, applys the extrusion force to the second PCB board, has realized that the accurate location of second PCB board is fixed.

Optionally, a sealing groove corresponding to the shape of the groove is disposed on the first surface of the second housing, which is close to the first housing along the first direction, an inner edge wall of the sealing groove is higher than an outer edge wall, the outer edge wall of the sealing groove is attached to the second end surface of the first housing, the inner edge wall of the sealing groove is accommodated in the groove,

be provided with the sealing washer in the seal groove on the first direction, the height of sealing washer is less than the height of the interior edge wall of seal groove is greater than the height of the outer edge wall of seal groove, works as the second casing with when first casing passes through connecting piece fastening connection, the sealing washer is kept away from the end face part of second casing with the second end face looks butt of first casing, in order to right the recess seals.

In this technical scheme, adopt the sealing washer to seal first casing and second casing, can reach dustproof and waterproof's purpose, further guaranteed the working property that on-vehicle camera used.

Further optionally, a protrusion is arranged on a first side face, away from the outer edge wall of the sealing groove, of the sealing ring, an opening corresponding to the protrusion is arranged on the inner edge wall of the sealing groove, and the protrusion is clamped in the opening.

In this technical scheme, through protruding and open-ended design, guarantee that the sealing washer assembly mode is unique.

Optionally, the second housing is close to two pairs of error-proofing bosses with different shapes are respectively arranged at two ends of one diagonal line of the first surface of the first housing along the first direction, each pair of error-proofing bosses are symmetrically arranged along the diagonal line, error-proofing grooves corresponding to the two pairs of error-proofing bosses are arranged on the second end surface of the first housing, and the error-proofing bosses are clamped in the error-proofing grooves corresponding to the error-proofing bosses.

In this technical scheme, through mistake proofing boss and mistake proofing recess cooperation, guarantee that first casing and second casing mounting means are unique, and atress is even when first casing and the laminating of second casing.

The beneficial effects of the embodiment of the specification are as follows:

the fixing mode that the positioning support structure and the press-fit structure are adopted to replace screws to fix the PCB can reduce the internal stress borne by the PCB, reduce the rejection rate of the PCB, solve the problems of unevenness of the PCB and easy screw slipping of the screws, and ensure the imaging quality of the camera.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is an exploded schematic view of a vehicle-mounted camera provided in an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a first housing in a vehicle-mounted camera provided in an embodiment of the present specification;

fig. 3 is a schematic structural diagram of a second housing in the vehicle-mounted camera provided in the embodiment of the present specification;

fig. 4 is a bottom view of a vehicle-mounted camera provided in an embodiment of the present disclosure;

fig. 5 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 4.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only some embodiments of the present disclosure, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

It should be noted that the terms "including" and "having" and any variations thereof in the embodiments of the present specification and the drawings are intended to cover non-exclusive inclusions. For example, to encompass a range of structures not limited to the structures listed, but may alternatively include structures not listed, or may alternatively include other elements inherent to such structures.

The embodiment of the specification discloses a vehicle-mounted camera. The following are detailed below.

Fig. 1, 4 and 5 show an in-vehicle camera provided according to an embodiment of the present disclosure. As shown in fig. 1, 4 and 5, the vehicle-mounted camera includes a lens 7, a PCB 3, and a first housing 1 and a second housing 4 which are fastened and connected by a connector 6, the first housing 1 and the second housing 4 form an outer shell of the vehicle-mounted camera, the first housing 1 includes a first end surface 11 (i.e., an end surface far from the second housing 4) and a second end surface 12 (i.e., an end surface close to the second housing 4), the second housing 4 includes a first surface 41 (i.e., a surface close to the first housing 1) and a second surface 47 (i.e., a surface far from the first housing 1), when the first housing 1 and the second housing 4 are assembled, the first surface 41 of the second housing 4 is buckled on the second end surface 12 of the first housing 1 in a first direction and is positioned and fixed and connected by the connector 6.

In a specific embodiment, as shown in fig. 1 and 5, the connecting member 6 is a screw, the four corners of the second end surface 12 of the first housing 1 are respectively provided with one threaded hole 16, the four corners of the second surface 47 of the second housing 2 are respectively provided with one through hole 46, the four through holes 46 respectively correspond to the four threaded holes 16 one by one, and the four screws sequentially penetrate through the through holes 46 and the threaded holes 16 in the first direction, so as to fasten the first housing 1 and the second housing 4. It should be noted and understood that the connecting member 6 is not limited to a screw, and other fastening connection methods, such as a snap connection, may be used.

In one embodiment, as shown in fig. 4 and 5, the lens 7 of the onboard camera is disposed on the first end surface 11 of the first housing 1. In a specific embodiment, the first housing 1 is provided with a placement groove 15 for installing and fixing the lens 7, the placement groove 15 has a shape and size corresponding to the shape and size of the lens 7, and in detail, a part of the placement groove 15 is disposed inside the first housing 1, and another part of the placement groove 15 extends outward from the first end surface 11 of the first housing 1 in the first direction and is used for supporting the lens 7.

In an embodiment, as shown in fig. 1 and 2, a groove 13 for accommodating the PCB 3 is disposed on the second end surface 12 of the first housing 1, and when the second housing 4 is tightly connected to the first housing 1 through the connecting member 6, the groove 13 forms a relatively closed groove structure, which protects the PCB 3. In addition, it should be noted that the groove 13 is communicated with the seating groove 15, so that when the PCB 3 is received in the groove 13, as shown in fig. 5, the PCB 3 is positioned right behind the lens 7.

In the prior art, the PCB board of on-vehicle camera adopts the fastening mode of the fixed PCB board of screw location, the screw is when assembling the PCB board, the moment of torsion difference that exists at both ends probably leads to the face unevenness of PCB board, and then influence the imaging quality, and simultaneously, screw fastening arouses smooth silk easily, damage the PCB board, and then cause the PCB board to scrap, increase cost, furthermore, when the unit mount of on-vehicle camera, the backshell of on-vehicle camera is most directly to support the PCB board, lead to the internal stress that the PCB board receives too big easily, and then lead to pad or soldering tin on the PCB board to tear the formation and open circuit.

In view of the above problems, as shown in fig. 1, the vehicle-mounted camera in the embodiment of the present specification adopts a fastening structure in which a positioning support structure 2 and a press-fit structure 5 are combined, and replaces a screw fastening mode in the prior art, so that the problems that the imaging quality is affected due to the unevenness of the board surface caused by the screw fastening mode and the PCB is scrapped due to the screw slipping are avoided, and meanwhile, the internal stress applied to the PCB is reduced, so as to improve the imaging quality of the vehicle-mounted camera.

Specifically, as shown in fig. 1 and fig. 2, the positioning support structure 2 is disposed on the inner end surface 131 of the groove 13, and is configured to position the PCB 3 into the groove 13, the press-fit structure 5 is disposed between the PCB 3 and the second housing 4, when the second housing 4 is fastened to the first housing 1 through the connecting member 6, in the first direction, the end surface of the press-fit structure 5 away from the second housing 4 is attached to the surface of the PCB 3 away from the first housing 1, and then the second housing 4 applies an extrusion force to the PCB 3 through the press-fit structure 5, and the PCB 3 is pressed, locked and fixed, so that the PCB 3 is positioned and fixed through the positioning support structure 2 and the press-fit structure 5, and the second housing 4 is not in direct contact with the PCB 3, thereby effectively reducing the internal stress applied to the PCB.

In an embodiment, as shown in fig. 1 and fig. 2, the positioning support structure 2 includes a support platform 21 and at least one positioning boss 22, the support platform 21 is disposed on the inner end surface 131 of the groove 13, and not only supports the PCB 3, but also conducts heat, a positioning boss 22 is disposed on the edge 211 of at least one side of the support platform 21, correspondingly, a notch 311 matched with the positioning boss 22 is disposed on the PCB 3, when the PCB 3 is assembled, the notch 311 on the PCB is clamped on the positioning boss 22, so that the positioning boss 22 is used to position the PCB, thereby achieving accurate installation of the PCB.

In another embodiment, as shown in fig. 1 and 2, the PCB 3 includes a first PCB 31 and a second PCB 32 connected by a connector 33, and the vehicle-mounted camera uses the second PCB 32 and the first PCB 31 stacked in a first direction, and fixes and conducts the first PCB 31 and the second PCB 32 through the board-to-board connector 33, so as to enlarge the whole area of the PCB 3, thereby increasing the number of devices (not shown in the figure) on the PCB 3 and ensuring better output of the image of the vehicle-mounted camera.

In a specific embodiment, as shown in fig. 1, fig. 2 and fig. 5, the first PCB 31 is a PCB close to the lens 7 and disposed on the supporting platform 21, the first PCB 31 is supported by the supporting platform 21, and the supporting platform 21 also conducts heat to the first PCB, so that when the first PCB works, the heat generated by the first PCB is quickly conducted to the first housing 1, so as to quickly dissipate heat, so as to prevent the first PCB 31 from being burnt due to an over-high temperature, a notch 311 adapted to the positioning boss 22 is disposed on the first PCB, and the first PCB 31 is clamped on the positioning boss 22 through the notch 311, so as to position the first PCB 31 on the supporting platform 21.

As shown in fig. 1, 2 and 5, the second PCB 32 is a PCB far from the lens 7 and is fixed by a connector 33, and in addition, the second PCB 32 is further supported by the positioning bosses 22, specifically, one positioning boss 22 is respectively disposed on an edge 211 of three of the supporting platform 21, the three positioning bosses 22 are distributed in a triangle, and according to the stability of the triangle, the stable support of the second PCB 32 can be effectively ensured, wherein it should be noted that the three positioning bosses 22 can be disposed on any edge of three of the supporting platform 21, and the position on each edge of the supporting platform 21 is not fixed. Optionally, the position of the connector 33 corresponds to the side of the support platform 21 not provided with the positioning boss 22, so as to avoid the occurrence of structural interference.

As shown in fig. 1, fig. 2 and fig. 5, the number of the positioning bosses 22 is three, and correspondingly, three edges (for example, three edges not provided with the connector 33) of the first PCB 31 are respectively provided with notches 311 adapted to the three positioning bosses 22, and the three notches 311 of the first PCB 31 are respectively clamped on the three positioning bosses 22, so that the first PCB 31 is positioned and disposed on the supporting platform 21, so as to ensure accurate positioning and installation of the first PCB 31.

As shown in fig. 1, 2 and 5, the positioning bosses 22 both position the first PCB 31 and support the second PCB 32, further, the positioning support structure 2 further includes positioning posts 23, each positioning boss 22 is provided with one positioning post 23, correspondingly, three sides (for example, three sides not provided with the connector 33) of the second PCB 32 are respectively provided with positioning holes 321 adapted to the three positioning posts 23, and the second PCB 32 is positioned by using the positioning holes 321 and the positioning posts 23, as shown in fig. 5, the three positioning posts 23 respectively penetrate through the three positioning holes 321 of the second PCB 32, so as to position the second PCB 32 on the three positioning bosses 22, thereby ensuring accurate positioning and installation of the second PCB.

In another specific embodiment, as shown in fig. 2, the supporting platform 21 is a groove structure recessed in the first direction, and recessed in the first direction from the inner end surface 131 to the placing groove 15 until the groove 13 is communicated with the placing groove 15, optionally, the shape and size of the first PCB 31 are matched with the shape and size of the supporting platform 21, and the first PCB 31 is embedded in the supporting platform 21, so that the supporting platform 21 not only plays a role in supporting and dissipating heat of the first PCB, but also can position the first PCB 31.

In an embodiment, as shown in fig. 1, the press-fit structure 5 includes a fixing ring 51 disposed between the first PCB 31 and the second PCB 32 and a pressure-bearing pad 52 disposed between the second PCB 32 and the second housing 4, when the second housing 4 is fastened to the first housing 1 through the connecting member 6, the second housing 4 applies an extrusion force to the second PCB 32 through the pressure-bearing pad 52, the second PCB 32 is pressed and fixed, and the first PCB 31 is applied with the extrusion force through the fixing ring 51, so that the first PCB 31 is also locked and fixed by the extrusion force, and thus the transmission of the forces between the second housing 4 and the second PCB 32 and between the second PCB 32 and the first PCB 31 is realized through the fixing ring 51 and the pressure-bearing pad 52, and the fixation of the PCB 3 is completed.

Specifically, as shown in fig. 1 and 5, the fixing ring 51 includes a first end face 511 (i.e., an end face of the fixing ring 51 is far away from the second housing 4 in the first direction) and a second end face 512 (i.e., an end face of the fixing ring 51 is close to the second housing 4 in the first direction), the first PCB 31 includes a first surface 312 (i.e., a surface of the first PCB 31 is close to the second housing 4 in the first direction), the second PCB 32 includes a first surface 322 (i.e., a surface of the second PCB 32 is far away from the second housing 4 in the first direction) and a second surface 323 (i.e., a surface of the second PCB 32 is close to the second housing 4 in the first direction), one fixing ring 51 is respectively sleeved on each positioning boss 22, the first end face 511 of the fixing ring 51 abuts against the first surface 312 of the first PCB 31, the second end face 512 of the fixing ring 51 abuts against the first surface 322 of the second PCB 32, meanwhile, in the first direction, the height of the fixing ring 51 is greater than the first surface 312 of the first PCB 31 abuts against the first surface 312 of the second PCB 32, and when the fixing ring 32 is pressed, the PCB is pressed, the first PCB 31 abuts against the first PCB 31, and the fixing ring 32, and the PCB is pressed distance between the fixing ring 31 and the PCB is further, and the PCB is secured to the PCB 51 and the PCB is pressed on the PCB 31, and the PCB is pressed PCB 31, and the PCB is further, and the PCB is pressed PCB 32, and the PCB is pressed by the PCB 31, and the PCB is pressed distance between the PCB is set.

In a specific embodiment, as shown in fig. 1, 2 and 5, the positioning boss 22 is of a semi-cylindrical shape, and the positioning boss 22 includes a rectangular side surface 221, an arc-shaped side surface 223, a first semi-circular end surface 222 (i.e., a semi-circular end surface of the positioning boss 22 away from the second housing 4) and a second semi-circular end surface 224 (i.e., a semi-circular end surface of the positioning boss 22 close to the second housing 4), wherein the rectangular side surface 221 of the positioning boss 22 is connected to the inner side wall 132 of the groove 13, and since the support table 21 is of a groove structure recessed in the first direction, the first semi-circular end surface 222 of the positioning boss 22 is designed to be a step-shaped end surface, a portion of the first semi-circular end surface 222 of the positioning boss 22 close to the inner side wall 132 of the groove 13 is connected to the inner end surface 131 of the groove 13, and a portion of the first semi-circular end surface 222 of the positioning boss 22 far from the inner side wall 132 of the groove 13 is connected to the positioning boss 22, so that the arc-shaped side surface 223 of the positioning boss 22 is partially disposed in the groove structure of the support table 21, and the first PCB 31 is accurately positioned by the arc-shaped side surface 223. Correspondingly, retainer plate 51 is the cylinder that the cross section is the semicircle ring, and the interior circle radius of retainer plate 51 is the same with location boss 22's radius, sets up in the groove structure of brace table 21 when first PCB board 31 location, and retainer plate 51 ring is established on the convex side 223 of location boss 22, closely laminates with location boss 22 to the realization is fixed to the extrusion of first PCB board 31, avoids rocking of first PCB board 31 in the on-vehicle camera. Optionally, the fixing ring 51 is made of soft silica gel, and is easy to compress, thereby being beneficial to relieving the pressing force on the first PCB 31 and the acting force on the second PCB 32, and avoiding the damage of the PCB 3.

As shown in fig. 1 and 5, the pressure-bearing pad 52 includes a first end surface 521 (i.e., the end surface of the pressure-bearing pad 52 is far away from the second housing 4 along the first direction), a second end surface 522 (i.e., the end surface of the pressure-bearing pad 52 is close to the second housing 4 along the first direction), and through holes 523, where one pressure-bearing pad 52 is respectively sleeved on each positioning column 23, the positioning column 23 is sleeved with one through hole 523 of the pressure-bearing pad 52, so as to sleeve the pressure-bearing pad 52 on the positioning column 23, meanwhile, the first end surface 521 of the pressure-bearing pad 52 abuts against the second surface 323 of the second PCB 32, the second end surface 522 of the pressure-bearing pad 52 abuts against the first surface 41 of the second housing 4, so as to prevent the second housing 4 from directly abutting against the second PCB 32, which causes excessive internal stress on the board, and achieve the purpose of reducing the internal stress on the PCB 3. When the PCB 3 is assembled, the first PCB 31 is first positioned in the groove structure of the support platform 21, then the fixing ring 51 is annularly arranged on the arc-shaped side surface 223 of the positioning boss 22, the second PCB 32 is positioned on the positioning boss 22 through the positioning column 23, then the pressure-bearing pad 52 is sleeved on the positioning column 23, the second housing 4 and the first housing 1 are fastened and connected through the connecting piece 6, at this time, the second housing 4 applies an extrusion force to the second PCB 32 through the pressure-bearing pad 52, the second PCB 32 is pressed and fixed, and meanwhile, the second PCB 32 applies an extrusion force to the first PCB 31 through the fixing ring 51, so that the first PCB 31 is locked and fixed by the extrusion force. Optionally, the pressure-bearing pad 52 is made of soft silica gel, and is easy to compress, thereby being beneficial to relieving the pressing force on the second PCB 32.

It should be noted and understood that the end surfaces of the press-fit structure 5 far from the second housing 4 refer to the first end surface 511 and the second end surface 512 of the fixing ring 51 and the first end surface 521 of the pressure-bearing pad 52, the surfaces of the PCB 3 far from the first housing 1 refer to the first surface 312 of the first PCB 31 and the first surface 322 and the second surface 323 of the second PCB 32, when the second housing 4 is tightly connected to the first housing 1 through the connecting member 6, the first end surface 511 of the fixing ring 51 is attached to the first surface 312 of the first PCB 31, the second end surface 512 of the fixing ring 51 is attached to the first surface 322 of the second PCB 32, and the first end surface 521 of the pressure-bearing pad 52 is attached to the second surface 323 of the second PCB 32, so that the second housing 4 applies the pressing force to the PCB 3 through the press-fit structure 5, the PCB 3 is locked and fixed by the pressing force, and in this embodiment, while the fixing ring 51 and the pressure-bearing pad 52 are secured to the first and second PCBs 31, and the second PCBs 32.

In an embodiment, as shown in fig. 3 and 5, three fixing columns 42 are further disposed on the first surface 41 of the second housing 4, the disposed positions of the three fixing columns 42 correspond to the disposed positions of the three positioning pillars 23, and each fixing column 42 is provided with a fixing hole 43 corresponding to the positioning pillar 23, when the second housing 4 is assembled with the first housing 1, one end 231 of the positioning pillar 23 close to the second housing 4 is inserted into the fixing hole 43, the pressure-bearing pad 52 is disposed between the fixing column 42 and the second PCB 32, the second end surface 522 of the pressure-bearing pad 52 abuts against the fixing column 42, when the second housing 4 is tightly connected with the first housing 1 through the connecting member 6, the fixing column 42 and the pressure-bearing pad 52 are pressed, and then the pressure-bearing pad 52 applies a pressing force to the second PCB 32, so that the second PCB 32 is pressed and fixed.

In another embodiment, as shown in fig. 3 and 5, a sealing groove 44 corresponding to the shape of the groove 13 is disposed on the first surface 41 of the second housing 4, and a sealing ring 8 for sealing the first housing 1 and the second housing 4 is disposed in the sealing groove 44, in detail, in the first direction, an inner edge wall 441 of the sealing groove 44 is higher than an outer edge wall 442, optionally, the height of the sealing ring 8 is smaller than the height of the inner edge wall 441 of the sealing groove 44, and the height of the sealing ring 8 is larger than the height of the outer edge wall 442 of the sealing groove 44, as shown in fig. 5, when the second housing 4 and the first housing 1 are fastened and connected by the connecting member 6, the outer edge wall 442 of the sealing groove 44 is attached to the second end surface 12 of the first housing 1, the inner edge wall 441 of the sealing groove 44 is accommodated in the groove 13, and an end surface portion of the sealing ring 8 away from the second housing 4 is abutted to the second end surface 12 of the first housing 1 to seal the groove 13, so as to achieve the purpose of dust and water prevention, and further ensure the working performance of the use of the vehicle-mounted camera. Alternatively, the inner edge wall 441 of the seal groove 44 is brought into contact with the inner side wall 132 of the groove 13, further ensuring the sealing effect between the first casing 1 and the second casing 4. Wherein, the sealing washer 8 can select to use soft silica gel material, easily compresses, and sealed effect is better. In a specific implementation process, the four corners of the second shell 4 and the four corners of the first shell 1 are fastened through screws, so that the sealing ring 8 in the sealing groove 44 is pressed to prevent moisture and dust from entering, and the later-stage disassembly and debugging of the vehicle-mounted camera are facilitated.

It should be noted and understood that "the joint" in "the outer edge wall 442 of the sealing groove 44 is jointed with the second end surface 12 of the first casing 1" is not absolutely in surface contact, and when the second casing 4 is tightly connected with the first casing 1, since the sealing ring 8 is arranged in the sealing groove 44, and the height of the sealing ring 8 is greater than that of the outer edge wall 442 of the sealing groove 44, a certain gap exists between the outer edge wall 442 of the sealing groove 44 and the second end surface 12 of the first casing 1, so as to ensure the sealing effect of the sealing ring 8 on the second casing 4 and the first casing 1.

In a specific embodiment, as shown in fig. 1 and 3, a protrusion 82 is disposed on a first side 81 of the outer edge wall 442 of the sealing ring 8 away from the sealing groove 44, an opening 4411 corresponding to the protrusion 82 is disposed on the inner edge wall 441 of the sealing groove 44, and the protrusion 82 is engaged in the opening 4411, so as to ensure that the sealing ring 8 is assembled only by the design of the protrusion 82 and the opening 4411.

In another embodiment, as shown in fig. 2 and 3, two pairs of error-proofing bosses 45 with different shapes are respectively disposed at two ends of a diagonal line of the first surface 41 of the second housing 4, each pair of error-proofing bosses 45 is symmetrically disposed along a diagonal line, the second end surface 12 of the first housing 1 is provided with error-proofing grooves 14 corresponding to the two pairs of error-proofing bosses 45, the error-proofing bosses 45 are clamped in the corresponding error-proofing grooves 14, so that the first housing 1 and the second housing 4 are mounted in a unique manner by matching the error-proofing bosses 45 with the error-proofing grooves 14, and the first housing 1 and the second housing 4 are uniformly stressed when being attached.

In a specific embodiment, as shown in fig. 2 and 3, the error-proofing protrusion 45 includes a pair of first error-proofing bosses 451 and a pair of second error-proofing bosses 452, and the error-proofing groove 14 includes a pair of first error-proofing grooves 141 and a pair of second error-proofing grooves 142, wherein the pair of first error-proofing bosses 451 is disposed at one corner of the first surface 41 of the second housing 4, and the two first error-proofing bosses 451 are symmetrically disposed along a diagonal line, the first error-proofing bosses 451 can be rectangular cylinders, correspondingly, the first error-proofing grooves 141 are disposed on the second end surface 12 of the first housing 1, are disposed corresponding to the first error-proofing bosses 451, and have a shape and size matched with the first error-proofing bosses 451, when the second housing 4 is fastened to the first housing 1, the first error-proofing bosses 451 are engaged in the first error-proofing grooves 141, a pair of second error-proofing bosses 452 are disposed at the other corner of the first surface 41 of the second housing 4, and are diagonally disposed with the pair of first error-proofing bosses 451, similarly, the two second error-proofing bosses 452 are symmetrically disposed along a diagonal, and the second error-proofing bosses 452 are half cylinders, correspondingly, the second error-proofing grooves 142 are disposed on the second end surface 12 of the first housing 1, and are disposed corresponding to the second error-proofing bosses 452, and the shape and size of the second error-proofing bosses are adapted to the second error-proofing bosses 452, when the second housing 4 is fastened to the first housing 1, the second error-proofing bosses 452 are engaged with the second error-proofing grooves 142, so as to ensure that the mounting manner is unique, ensure uniform stress when the PCB 3 is pressed and fastened, and improve the imaging quality of the vehicle-mounted camera.

To sum up, this specification discloses a vehicle-mounted camera, set up two-layer bearing structure of brace table and location boss in the first casing, set up the reference column on the boss of location, set up the seal groove on the second casing and set up the fixed column of fixed orifices, the brace table supports first PCB board, the second PCB board is established on the reference column through the locating hole cover, and rely on the boss of location to support, the retainer plate cover is established on the boss of location, and support first PCB board, with fixed first PCB board, the bearing pad covers and establishes on the reference column, the reference column is inserted and is located the fixed orifices, and then the fixed column supports on the bearing pad, fix the second PCB board with filling up through the bearing, the sealing washer is arranged in the seal groove, be located between first casing and the second casing, play waterproof dirt-proof effect.

Those of ordinary skill in the art will understand that: the drawings are merely schematic representations of one embodiment, and the elements shown in the drawings are not necessarily required to practice the invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. 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 description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An on-vehicle camera, characterized by comprising:

the pressing structure is arranged between the PCB and the second shell, when the second shell is fixedly connected with the first shell through a connecting piece, the end face of the pressing structure far away from the second shell is attached to the surface of the PCB far away from the first shell in the first direction, and the PCB is extruded, locked and fixed.

2. The vehicular camera according to claim 1, wherein the positioning support structure comprises:

a support table disposed on the inner end surface of the groove,

at least one positioning boss arranged on the edge of the support platform,

3. The vehicle-mounted camera according to claim 2, wherein the positioning support structure further comprises three positioning posts, the number of the positioning bosses is three, one positioning boss is respectively arranged on the edges of three sides of the support platform, one positioning post is respectively arranged on each positioning boss,

4. The vehicle-mounted camera according to claim 3, wherein the supporting platform has a groove structure recessed along the first direction, the first PCB is identical to the supporting platform in shape and size, and the first PCB is embedded in the supporting platform.

5. The vehicle-mounted camera according to claim 3, wherein the press-fit structure comprises:

6. The vehicle-mounted camera according to claim 5, wherein the positioning boss is of a semi-cylindrical shape, a rectangular side surface of the positioning boss is connected with an inner side wall of the groove, a first semi-circular end surface of the positioning boss far away from the second housing is a stepped end surface, a part of the first semi-circular end surface of the positioning boss near the inner side wall of the groove is connected with an inner end surface of the groove, a part of the first semi-circular end surface of the positioning boss far away from the inner side wall of the groove is connected with the positioning boss,

the fixing ring is a cylinder with a semicircular cross section, the inner circle radius of the fixing ring is the same as the radius of the positioning boss, and the fixing ring is annularly arranged on the arc-shaped side face of the positioning boss.

7. The vehicle-mounted camera according to claim 5, wherein three fixing posts are disposed on the first surface of the second housing, the three fixing posts are disposed at positions corresponding to the three positioning posts, each fixing post is provided with a fixing hole corresponding to the positioning post, one end of the positioning post close to the second housing is inserted into the fixing hole, the pressure-bearing pad is disposed between the fixing post and the second PCB, and a second end surface of the pressure-bearing pad abuts against the fixing post.

8. The vehicle-mounted camera according to claim 1, wherein a sealing groove corresponding to the shape of the groove is formed in a first surface of the second housing, which is close to the first housing in the first direction, an inner edge wall of the sealing groove is higher than an outer edge wall of the sealing groove, the outer edge wall of the sealing groove is attached to a second end surface of the first housing, and the inner edge wall of the sealing groove is received in the groove,

9. The vehicle-mounted camera according to claim 8, wherein a protrusion is disposed on a first side surface of the outer edge wall of the seal ring away from the seal groove, an opening corresponding to the protrusion is disposed on the inner edge wall of the seal groove, and the protrusion is engaged with the opening.

10. The vehicle-mounted camera according to claim 1, wherein two pairs of error-proofing bosses with different shapes are respectively disposed at two ends of a diagonal line of the second housing, which is close to the first surface of the first housing along the first direction, each pair of error-proofing bosses are respectively disposed symmetrically along the diagonal line, error-proofing grooves corresponding to the two pairs of error-proofing bosses are disposed on the second end surface of the first housing, and the error-proofing bosses are clamped in the corresponding error-proofing grooves.