CN214225990U

CN214225990U - Vehicle-mounted ETC and DVR camera integrated device

Info

Publication number: CN214225990U
Application number: CN202023223100.0U
Authority: CN
Inventors: 樊国林
Original assignee: Huizhou Foryou General Electronics Co Ltd
Current assignee: Huizhou Foryou General Electronics Co Ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-09-17
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a vehicle-mounted ETC and DVR camera integrated device, which comprises a DVR middle frame, wherein the rear side of the DVR middle frame is provided with a DVR rear cover, the front side of the DVR middle frame is provided with a DVR front cover, and the DVR middle frame, the DVR rear cover and the DVR front cover jointly form a DVR shell with an inner cavity; the DVR shell is internally provided with a DVRPCBA which is electrically connected with the camera module; the ETC module with can dismantle the connection between the DVR protecgulum. The utility model has the advantages of reasonable design, through be equipped with camera module, ETC module on the DVR front cover to make ETC and DVR camera form a body structure, thereby reduced the space that occupies windshield, realized ETC collection function of paying, driving record function. Because the lug is along controlling in the direction embedding recess, the DVR fixture block is along controlling in the direction embedding ETC draw-in groove, consequently the product reliability is good, and it is convenient to dismantle the equipment, and electronic function uses extensively, and practical value is high.

Description

Vehicle-mounted ETC and DVR camera integrated device

Technical Field

The utility model relates to an on-vehicle ETC and integrative technical field of DVR camera especially relate to an on-vehicle ETC and integrative device of DVR camera.

Background

Background: when a traffic accident occurs during driving, landscapes, emergencies and scratches are scratched when the vehicle is parked in a static state, people hope to recognize the traffic accident through calling a video by the monitoring device. Because both hands are busy when driving to operate the steering wheel, photographing and video recording can not be realized through a mobile phone or a camera, and monitoring can be carried out under the condition of parking and placing at ordinary times, particularly under the condition of severe weather environment, getting-off is inconvenient to handle emergencies, the emergencies are disputed, the two parties can not achieve consensus, and under the condition that a traffic department can not judge, a vehicle-mounted product is very needed to carry out evidence obtaining of the monitoring and video recording equipment.

The defects of the prior art scheme are as follows: more and more people are now accustomed to mounting a tachograph and an ETC in front of the front windscreen of a car. However, such split products (the automobile data recorder and the ETC) occupy a large space of a windshield, and may affect the visual field and the observation range of a driver and seriously affect the safety of the driver.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an on-vehicle ETC and integrative device of DVR camera to occupy the very big technical problem in windshield space when vehicle event data recorder and ETC components of a whole that can function independently among the solution prior art.

In order to achieve the purpose, the technical scheme of the utility model provides a vehicle-mounted ETC and DVR camera integrated device, which comprises a DVR middle frame, wherein the rear side of the DVR middle frame is provided with a DVR rear cover, the front side of the DVR middle frame is provided with a DVR front cover, and the DVR middle frame, the DVR rear cover and the DVR front cover jointly form a DVR shell with an inner cavity; the DVR shell is internally provided with a DVRPCBA which is electrically connected with the camera module; the ETC module with can dismantle the connection between the DVR protecgulum.

Furthermore, a convex block is arranged in front of the DVR front cover, and DVR clamping blocks extending along the left-right direction are respectively arranged on the front sides of the upper surface and the lower surface of the convex block; the ETC module comprises an ETC shell, an ETC PCBA is arranged in the ETC shell, a groove is formed in the back of the ETC shell, and ETC clamping grooves extending in the left-right direction are formed in the front sides of the upper surface and the lower surface of the groove respectively; the lug is embedded in the groove along the left-right direction, and the DVR fixture block is embedded in the ETC clamping groove along the left-right direction, so that the ETC shell is detachably connected with the DVR front cover.

Further, the right side of the groove is open, and the left side of the groove is closed, so that the bump enters the groove from the right side; the right side of ETC draw-in groove is the opening, the left side of ETC draw-in groove is the closure, so that the DVR fixture block gets into from the right side in the ETC draw-in groove.

Furthermore, a fixing plate is arranged in front of the DVR front cover and is positioned at the right side of the convex block; be equipped with first screw hole on the fixed plate, the right side wall of ETC casing is equipped with the second screw hole, first screw hole with connect fixedly through the screw between the second screw hole.

Furthermore, a limiting groove is formed in the front of the DVR front cover, the limiting groove extends in the left-right direction, and the lug and the fixing plate are both positioned in the limiting groove; and the upper side wall and the lower side wall of the limiting groove respectively perform limiting action on the upper side wall and the lower side wall of the ETC shell.

Further, the front of the ETC module is provided with a double faced adhesive tape.

Further, the camera module comprises a camera front cover, a camera and a camera PCBA, the camera is mounted at the front end of the camera front cover, the camera PCBA is mounted at the rear end of the camera front cover, and the camera is electrically connected with the camera PCBA; the DVR front cover is also provided with a mounting hole, the camera front cover is rotatably mounted in the mounting hole, the front end of the camera front cover is positioned outside the DVR shell, and the rear end of the camera front cover is positioned in the DVR shell; the camera PCBA is electrically connected with the DVRPCBA.

The camera module further comprises a rotary support bracket and a camera rotary base, the front end of the rotary support bracket is fixed with the rear end of the camera front cover, the rear end of the rotary support bracket is provided with a ball head and a plurality of support columns, and the support columns are positioned around the ball head; a camera rotating base is arranged behind the rotating support bracket, a hollow column is arranged in the middle of the front end of the camera rotating base, and the ball head is mounted in the hollow column; the maximum width of the rear end of the front cover of the camera is larger than the width of the mounting hole, a spring is arranged on the outer side of the hollow column, and the support columns prop against the spring backwards.

Further, be equipped with a plurality of screw post around the mounting hole, the front end of screw post with the medial surface of DVR protecgulum is fixed, the rear end of screw post with camera rotating base's edge is connected fixedly through the screw.

Furthermore, the ETC module and the camera module are respectively positioned at the upper side and the lower side of the DVR front cover, a first bending angle is arranged between the upper side and the lower side of the DVR front cover, and the first bending angle is more than 130 degrees and less than 180 degrees; a second folding angle is formed between the upper side and the lower side of the DVR middle frame, and the second folding angle is larger than 130 degrees and smaller than 180 degrees; a third folding angle is arranged between the upper side and the lower side of the DVR rear cover, and the third folding angle is more than 130 degrees and less than 180 degrees; and the DVR front cover is also provided with a radar.

To sum up, the application the technical scheme of the utility model, following beneficial effect has:

(1) the utility model has the advantages of reasonable design, through being equipped with camera module, ETC module on the DVR protecgulum, be equipped with DVRPCBA in the DVR casing, DVRPCBA is connected with camera module electricity, can dismantle between ETC module and the DVR protecgulum and be connected to make ETC and DVR camera form a body structure, thereby reduced the space that occupies windshield.

(2) Because the function of having possessed ETC and DVR camera simultaneously, consequently can realize ETC charge function, driving record function, can go and park the vehicle time, carry out the surveillance video.

(3) Because in the lug was followed left right direction embedding recess, the DVR fixture block was followed left right direction embedding ETC draw-in groove to can dismantle between messenger ETC casing and the DVR protecgulum and be connected, consequently product reliability is good, and it is convenient to dismantle the equipment, and electronic function uses extensively, and practical value is high.

Drawings

FIG. 1 is a schematic diagram of an explosion structure of a vehicle-mounted ETC and DVR camera integrated device of the invention;

FIG. 2 is a schematic view of a first three-dimensional structure of the integrated vehicle-mounted ETC and DVR camera device of the present invention;

FIG. 3 is a schematic diagram of a second three-dimensional structure of the integrated vehicle-mounted ETC and DVR camera device of the present invention;

FIG. 4 is a schematic diagram of an explosion structure of the integrated vehicle-mounted ETC and DVR camera device of the present invention when the ETC module and the camera module are removed;

FIG. 5 is a schematic perspective view of a DVR front cover of the integrated vehicle ETC and DVR camera device of the present invention;

fig. 6 is a schematic diagram of a first three-dimensional structure of an ETC rear cover of the vehicle-mounted device integrating the ETC and DVR cameras;

fig. 7 is a schematic diagram of a second three-dimensional structure of an ETC rear cover of the vehicle-mounted device integrating the ETC and DVR cameras;

FIG. 8 is a cross-sectional view of the ETC module of the on-board ETC and DVR camera integrated device of the present invention;

fig. 9 is an exploded view of the ETC module of the on-board ETC and DVR camera integrated device of the present invention;

fig. 10 is a third schematic perspective view of the ETC rear cover of the on-board ETC and DVR camera integrated device of the present invention;

FIG. 11 is a schematic perspective view of the ETC bezel of the integrated vehicle ETC and DVR camera device of the present invention;

fig. 12 is a schematic view of an explosion structure of the camera module of the integrated vehicle-mounted ETC and DVR camera device of the present invention when being matched with the DVR front cover;

fig. 13 is a partially enlarged schematic view of the camera module of the on-vehicle integrated ETC and DVR camera device of the present invention, which is engaged with the DVR front cover;

description of reference numerals: 1-DVR center bezel, 2-DVR back cover, 3-DVR front cover, 301-bump, 3011-DVR clip, 302-retaining plate, 3021-first screw hole, 303-retaining groove, 304-mounting hole, 4-camera module, 401-camera front cover, 402-camera, 403-camera PCBA, 404-rotational support bracket, 4041-ball head, 4042-support post, 405-camera rotational base, 4051-hollow post, 406-spring, 5-ETC module, 501-ETC back cover, 5011-groove, 5012-ETC card slot, 5013-second screw hole, 5014-snap, 502-ETC PCBA, 503-ETC front cover, 5031-snap, 6-DVRPCBA, 7-double sided adhesive, 8-radar, 9-plastic button, 10-screw, 11-screw post.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, but the technical solution does not limit the scope of the present invention.

In the present invention, for the sake of clearer description, the following explanation is made: the observer is observing in the face of fig. 1, the left side of the observer is set as the front side, the right side of the observer is set as the rear side, the front side of the observer is set as the right side, the rear side of the observer is set as the left side, the upper side of the observer is set as the upper side, and the lower side of the observer is set as the lower side, it should be noted that the terms "front end", "rear end", "left side", "right side", "middle part", "upper part", "lower part" and the like in the text indicate the orientation or positional relationship set based on the drawings, and only for the convenience of clearly describing the present invention, but not to indicate or suggest that the structure or component indicated by the terms must have a specific orientation, be constructed in a specific orientation, and therefore, cannot be understood as a limitation of the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used merely for purposes of clarity or simplicity of description and are not to be construed as indicating or implying relative importance or quantity.

Referring to fig. 1, 2, 3 and 4, the embodiment provides an integrated device of a vehicle-mounted ETC and DVR camera, which comprises a DVR middle frame 1, wherein a DVR rear cover 2 is arranged at the rear side of the DVR middle frame 1, a DVR front cover 3 is arranged at the front side of the DVR middle frame 1, and the DVR middle frame 1, the DVR rear cover 2 and the DVR front cover 3 form a DVR shell with an inner cavity together; preferably, the DVR front cover 3 and the DVR middle frame 1 are fixed by screws, and the DVR rear cover 2 and the DVR middle frame 1 are fixed by screws, but may be fixed by a snap. The DVR front cover 3 is provided with a camera module 4 and an ETC module 5, and the DVR housing is provided with DVRPCBA6, preferably, DVRPCBA6 is fixed to the inner side surface of the DVR front cover 3. The DVRPCBA6 is electrically connected with the camera module 4; the ETC module 5 is detachably connected with the DVR front cover 3. Preferably, the left end of the DVR middle frame 1 is provided with a plastic button 9, the button is connected with the DVRPCBA6, the upper end of the DVR middle frame is provided with a socket, and the socket is connected with the DVRPCBA 6.

The part has the beneficial effects that: (1) through being equipped with camera module, ETC module on the DVR protecgulum, be equipped with DVRPCBA in the DVR casing, DVRPCBA is connected with camera module electricity, can dismantle between ETC module and the DVR protecgulum and be connected to make ETC and DVR camera form an organic whole structure, thereby reduced the space that occupies windshield. (2) Because the function of having possessed ETC and DVR camera simultaneously, consequently can realize ETC charge function, driving record function, can go and park the vehicle time, carry out the surveillance video.

Specifically, referring to fig. 5 and 6, the front surface of the DVR front cover 3 is provided with a projection 301, and preferably, the projection 301 is a U-shaped block, and the opening direction of the U-shaped block faces to the left. The front sides of the upper and lower surfaces of the convex block 301 are respectively provided with a DVR fixture block 3011 extending along the left and right direction; the ETC module 5 comprises an ETC shell, wherein an ETC PCBA502 is arranged in the ETC shell, a groove 5011 is formed in the back of the ETC shell, and ETC clamping grooves 5012 extending in the left-right direction are formed in the front sides of the upper surface and the lower surface of the groove 5011 respectively; lug 301 is along controlling in the direction embedding recess 5011, and in DVR fixture block 3011 was along controlling the direction embedding ETC draw-in groove 5012 to can dismantle between messenger ETC casing and the DVR protecgulum 3 and be connected, make both can realize fore-and-aft direction and the mutual restraint of upper and lower direction, can realize dismantling and assembling along controlling the direction, consequently the product reliability is good, and it is convenient to dismantle the equipment, and electronic function uses extensively, and practical value is high.

Specifically, referring to fig. 5 and 6, the right side of the slot 5011 is open and the left side of the slot 5011 is closed, so that the bump 301 enters the slot 5011 from the right side; the right side of the ETC card slot 5012 is an opening, and the left side of the ETC card slot 5012 is closed, so that the DVR card block 3011 enters the ETC card slot 5012 from the right side. Set up one side for the closure, the opposite side lies in conveniently carrying out the control of embedding degree of depth for the open-ended effect on the one hand, and on the other hand also can realize preventing slow-witted effect.

Specifically, referring to fig. 5 and 6, the front surface of the DVR front cover 3 is further provided with a fixing plate 302, and the fixing plate 302 is located to the right of the projection 301; the fixed plate 302 is provided with a first screw hole 3021, the right side wall of the ETC housing is provided with a second screw hole 5013, and the first screw hole 3021 and the second screw hole 5013 are fixedly connected through a screw 11. Preferably, the two first screw holes 3021 and the two second screw holes 5013 are distributed up and down, so that the stress on the fixing plate is more balanced.

Specifically, referring to fig. 5 and 6, a limiting groove 303 is further provided in the front of the DVR front cover 3, the limiting groove 303 extends in the left-right direction, and the protrusion 301 and the fixing plate 302 are both located in the limiting groove 303; the last lateral wall of spacing groove 303, lower lateral wall carry out limiting displacement to the last lateral wall of ETC casing, lower lateral wall respectively, and the guide effect to the ETC casing also can be realized to spacing groove 303 simultaneously.

Specifically, referring to fig. 9, the front face of the ETC module 4 is provided with a double-sided tape 7. Preferably, the double-sided tape 7 is positioned in front of the ETC shell, the double-sided tape 7 is a 3M double-sided tape, and the double-sided tape 7 is used for bonding at a proper position which does not influence the driving sight of a driver in front of or behind a windshield of the automobile, so that the whole vehicle-mounted ETC and DVR camera integrated device is fixed at the windshield of the automobile and the like. Preferably, referring to fig. 6, 7, 8, 9, 10 and 11, the ETC housing includes an ETC rear cover 501 and an ETC front cover 503, the inner side surface of the ETC rear cover 501 is provided with a plurality of fastening positions 5014, the inner side surface of the ETC front cover 503 is provided with a plurality of buckles 5031, the buckles 5031 and the fastening positions 5014 are fastened and pre-fixed, the inner side surface of the ETC front cover 503 is also provided with a plurality of screw posts 11, and the screw posts 11 are matched with the screws 11 to connect and fix the ETC front cover 503 and the ETC rear cover 501. Preferably, the material of the ETC housing is PC + ABS.

Specifically, referring to fig. 12 and 13, the camera module 4 includes a camera front cover 401, a camera 402, and a camera PCBA403, the camera 402 is mounted at the front end of the camera front cover 401, the camera PCBA403 is mounted at the rear end of the camera front cover 401, and the camera 402 is electrically connected to the camera PCBA 403; the DVR front cover 3 is also provided with a mounting hole 304, the camera front cover 401 is rotatably mounted in the mounting hole 304, the front end of the camera front cover 401 is positioned outside the DVR shell, and the rear end of the camera front cover 401 is positioned in the DVR shell; the camera PCBA403 is electrically connected to the DVRPCBA 6.

Specifically, referring to fig. 12 and 13, the camera module 4 further includes a rotary support bracket 404 and a camera rotary base 405, the front end of the rotary support bracket 404 is fixed to the rear end of the camera front cover 401, the rear end of the rotary support bracket 404 is provided with a ball 4041 and a plurality of support columns 4042, and the plurality of support columns 4042 are located around the ball 4041; a camera rotating base 405 is arranged behind the rotating support bracket 404, a hollow column 4051 is arranged in the middle of the front end of the camera rotating base 405, and a ball head 4041 is installed in the hollow column 4051; the maximum width of the rear end of the camera front cover 401 is greater than the width of the mounting hole 304, and the camera front cover 401 is limited in the forward direction; the outside of hollow post 4051 is equipped with spring 406, and a plurality of support column 4042 withstands spring 406 backward, and its effect lies in carrying out the spacing of backward direction to camera protecgulum 401 to make camera protecgulum 401 retrain in this space, can only rotate.

Specifically, referring to fig. 12 and 13, a plurality of screw posts 11 are disposed around the mounting hole 304, the front ends of the screw posts 11 are fixed to the inner side surface of the DVR front cover 3, and the rear ends of the screw posts 11 are connected and fixed to the edge of the camera rotating base 405 through the screws 11. Its effect lies in, through the locking dynamics of screw 11 to camera rotating base 405 to regulating spring 406's the volume that compresses tightly, so that camera module 406 can 360 degrees angular rotations, the camera adopts 360 degrees rotatory design schemes, can be through software program control angle, can be according to different vehicles adjustment camera angle on-vehicle. The device can be suitable for different vehicle types, and can record videos by flexibly adjusting the angle of the camera.

Specifically, referring to fig. 1 and 5, the ETC module 5 and the camera module 4 are respectively located on the upper side and the lower side of the DVR front cover 3, and a first folding angle is provided between the upper side and the lower side of the DVR front cover 3, and the first folding angle is > 130 ° and < 180 °, and preferably 160 °. The effect that has the angle of turning over lies in, and the camera module 4 of being convenient for is in the angle of difference with the ETC module to the angle that has between better adaptation road and the on-vehicle windshield.

Specifically, referring to fig. 1, 3 and 4, the DVR middle frame 1 has a second folding angle between the upper and lower sides, the second folding angle being > 130 ° and < 180 °, preferably 160 °; the third bending angle is larger than 130 degrees and smaller than 180 degrees, preferably 160 degrees, and the bending angle at the position is used for adapting to the bending angle of the DVR front cover 3. The DVR front cover 3 is also provided with a radar 8, thereby having the functions of radar detection and the like.

The in-vehicle device is a device used on a windshield of an automobile. On-vehicle ETC and DVR camera integrative device are removable + DVR camera rotary mechanism of multi-functional ETC, can realize ETC, vehicle event data recorder, functions such as radar detection.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A vehicle-mounted ETC and DVR camera integrated device comprises a DVR middle frame (1), wherein a DVR rear cover (2) is arranged on the rear side of the DVR middle frame (1), a DVR front cover (3) is arranged on the front side of the DVR middle frame (1), and the DVR middle frame (1), the DVR rear cover (2) and the DVR front cover (3) jointly form a DVR shell with an inner cavity; the method is characterized in that: the DVR is characterized in that a camera module (4) and an ETC module (5) are arranged on the DVR front cover (3), a DVRPCBA (6) is arranged in the DVR shell, and the DVRPCBA (6) is electrically connected with the camera module (4); the ETC module (5) and the DVR front cover (3) are detachably connected.

2. The on-board ETC and DVR camera integrated device of claim 1, comprising: a convex block (301) is arranged in front of the DVR front cover (3), and DVR clamping blocks (3011) extending along the left-right direction are respectively arranged on the front sides of the upper surface and the lower surface of the convex block (301); the ETC module (5) comprises an ETC shell, an ETC PCBA (502) is arranged in the ETC shell, a groove (5011) is formed in the back of the ETC shell, and ETC clamping grooves (5012) extending in the left-right direction are formed in the front sides of the upper surface and the lower surface of the groove (5011) respectively; lug (301) are followed left right direction embedding in recess (5011), embedding about DVR fixture block (3011) follow in ETC draw-in groove (5012), so that the ETC casing with can dismantle the connection between DVR protecgulum (3).

3. The integrated vehicle ETC and DVR camera device of claim 2, wherein: the right side of the groove (5011) is open, and the left side of the groove (5011) is closed, so that the bump (301) enters the groove (5011) from the right side; the right side of ETC draw-in groove (5012) is the opening, the left side of ETC draw-in groove (5012) is the closure, so that DVR fixture block (3011) gets into from the right side in ETC draw-in groove (5012).

4. An onboard ETC and DVR camera integrated device according to claim 2 or 3, characterized in that: a fixing plate (302) is further arranged in front of the DVR front cover (3), and the fixing plate (302) is positioned on the right side of the bump (301); be equipped with first screw hole (3021) on fixed plate (302), the right side wall of ETC casing is equipped with second screw hole (5013), first screw hole (3021) with connect fixedly through screw (10) between second screw hole (5013).

5. The integrated vehicle ETC and DVR camera device of claim 4, wherein: a limiting groove (303) is further formed in the front of the DVR front cover (3), the limiting groove (303) extends in the left-right direction, and the bump (301) and the fixing plate (302) are both located in the limiting groove (303); the upper side wall and the lower side wall of the limiting groove (303) are used for limiting the upper side wall and the lower side wall of the ETC shell respectively.

6. The on-board ETC and DVR camera integrated device of any one of claims 1 to 3 and 5, wherein: the front of the ETC module (5) is provided with a double-sided adhesive tape (7).

7. The on-board ETC and DVR camera integrated device of any one of claims 1 to 3 and 5, wherein: the camera module (4) comprises a camera front cover (401), a camera (402) and a camera PCBA (403), the camera (402) is installed at the front end of the camera front cover (401), the camera PCBA (403) is installed at the rear end of the camera front cover (401), and the camera (402) is electrically connected with the camera PCBA (403); the DVR front cover (3) is also provided with a mounting hole (304), the camera front cover (401) is rotatably mounted in the mounting hole (304), the front end of the camera front cover (401) is positioned outside the DVR shell, and the rear end of the camera front cover (401) is positioned in the DVR shell; the camera PCBA (403) is electrically connected with the DVRPCBA (6).

8. The on-board ETC and DVR camera integrated device of claim 7, wherein: the camera module (4) further comprises a rotary supporting bracket (404) and a camera rotating base (405), the front end of the rotary supporting bracket (404) is fixed with the rear end of the camera front cover (401), a ball head (4041) and a plurality of supporting columns (4042) are arranged at the rear end of the rotary supporting bracket (404), and the plurality of supporting columns (4042) are located around the ball head (4041); a camera rotating base (405) is arranged behind the rotating support bracket (404), a hollow column (4051) is arranged in the middle of the front end of the camera rotating base (405), and the ball head (4041) is installed in the hollow column (4051); the maximum width of the rear end of the camera front cover (401) is larger than the width of the mounting hole (304), a spring (406) is arranged on the outer side of the hollow column (4051), and the support columns (4042) prop against the spring (406) backwards.

9. The on-board ETC and DVR camera integrated device of claim 8, wherein: be equipped with a plurality of screw post (11) around mounting hole (304), the front end of screw post (11) with the medial surface of DVR protecgulum (3) is fixed, the rear end of screw post (11) with the edge of camera rotating base (405) is connected fixedly through screw (10).

10. An onboard ETC and DVR camera integrated device as claimed in any one of claims 1 to 3, 5, 8 to 9, wherein: the ETC module (5) and the camera module (4) are respectively positioned on the upper side and the lower side of the DVR front cover (3), a first bending angle is arranged between the upper side and the lower side of the DVR front cover (3), and the first bending angle is larger than 130 degrees and smaller than 180 degrees; a second folding angle is formed between the upper side and the lower side of the DVR middle frame (1), and the second folding angle is more than 130 degrees and less than 180 degrees; a third folding angle is arranged between the upper side and the lower side of the DVR rear cover (2), and the third folding angle is more than 130 degrees and less than 180 degrees; and a radar (8) is also arranged on the DVR front cover (3).