CN208867962U - Blind area detects sensing device - Google Patents

Abstract

The utility model provides a kind of blind area detection sensing device, solve the problems, such as that existing detection system detection effect is poor, its key points of the technical solution are that, including support component and probe assembly, support component includes with the shell being open and the cap for being covered on opening, probe assembly includes the circuit board being installed in cap, and circuit board is equipped with the electromagnetic sensor of electromagnetic wave for transmitting and receiving, and the position limiting structure for keeping the spacing of electromagnetic sensor and cap is equipped between cap and circuit board.The wave frequency that detection sensing device is emitted can penetrate plastics, probe assembly is mounted in support component between 77-81GHz, then be mounted on the bumper of vehicle by support component, without punching on bumper.By the position limiting structure in cap to limit the spacing between electromagnetic sensor and cap, to ensure the normal work of electromagnetic sensor；This detection sensing device structure is simple, small in size, and the occasion for being applicable in installation is in extensive range.

Description

Blind area detects sensing device

Technical field

The utility model relates to electronic product and auto parts fields more particularly to a kind of blind area to detect sensing device.

Background technique

While automobile is convenient to people, there is also the risk that traffic accident occurs, occupant and other people safety are threatened Many elements, thus recently vehicle towards being not only convenience and improve its safe sexual development.

Since the range of observation of vehicle sided mirror unit is limited, vehicle rear ramp is usually the blind area of outside rear-view mirror. If there is vehicle drives into blind area and this vehicle makes tangent line operation at this time, it is likely that the accident of car to car impact occur, if in height This accident occurs in speed will be abnormally dangerous.

Blind area detection system is to identify in vehicle blind zone whether have vehicle to swarm by sensor, to mention to driver For early warning.The sensor of the blind area monitoring system of market mainly has ultrasonic probe and a camera at present, but ultrasonic probe with The detection of camera is slow in reacting, and efficiency is lower, therefore, has improved space.

Utility model content

The purpose of the utility model is to provide a kind of blind areas to detect sensing device, with response is fast, detection accuracy is high Effect, and simple, small in size, round-the-clock do very well is installed.

To achieve the goals above, the utility model the following technical schemes are provided:

A kind of blind area detection sensing device, including support component and probe assembly, the support component include having opening Shell and be covered on the cap of the opening, the probe assembly includes the circuit board being installed in cap, the circuit board It is equipped with the electromagnetic sensor of electromagnetic wave for transmitting and receiving, is equipped between the cap and circuit board for keeping electromagnetism The position limiting structure of the spacing of wave sensor and cap.

Through the above scheme, the spy to vehicle blind zone is realized by the circuit board of probe assembly and electromagnetic sensor It surveys, the wave frequency that electromagnetic sensor is issued can penetrate plastics between 77-81GHz range, then by probe assembly It is mounted in support component, then is mounted on by support component to be detected on the bumper of vehicle, in addition, by cap Position limiting structure is to limit the spacing between electromagnetic sensor and cap, to ensure that electromagnetic sensor reaches optimum performance；With Ultrasonic probe, camera are compared, and the radar based on the monitoring of electromagnetic wave blind area can more overcome the shadow of the scenes such as bad weather, night It rings；This detection sensing device structure is simple, small in size, and the occasion for being applicable in installation is in extensive range.

Further setting: the circuit board is equipped with waveguide pipe, and the waveguide pipe is enclosed in the electromagnetic sensor Surrounding.

Through the above scheme, waveguide pipe can with the detection angle and range of guide electromagnetic waves, to reduce detection range, with Achieve the purpose that enhance detection accuracy.

Further setting: the electromagnetic sensor includes two antennas, and the waveguide pipe is covered on electromagnetic sensor Outside be separated into two regions, two antennas respectively correspond the electromagnetic wave covered positioned at two regions of waveguide pipe and pass In sensor.

Through the above scheme, waveguide pipe reduces the detection angle and range of electromagnetic wave, to reach the mesh of enhancing detection accuracy 's.

Further setting: the waveguide pipe includes plastic body and the coat of metal for being covered in plastic body outer surface.

Through the above scheme, waveguide pipe is made of the technique of " plastic material+electroplating surface conductive metal ", than traditional Using metal materials such as copper, have the advantages that dimensional accuracy is high, assembly technology is simple and at low cost.

Further setting: the position limiting structure includes several supports for being arranged in cap and extending towards circuit board direction Bone, the one end of the support rib far from cap offset with circuit board.

Through the above scheme, electromagnetic sensor can be limited to the distance of cap by support rib, then it can be by adjusting The length of support rib come adjust electromagnetic sensor to cap distance, to ensure the normal work of detection device.

Further setting: the shell is located at electromagnetic sensor and injects glue, the electromagnetic wave far from the side of cap The side of sensor is equipped with the sealing ring along its circumferentially extending.

Through the above scheme, by injecting glue in the housing to play the role of sealing waterproof, and sealing ring can be kept away Exempt from the cavity that glue enters between circuit board and cap to cause the influence to detection performance.

Further setting: the cap includes cover and for realizing cap fixed bracket connected to the housing, the face Lid is integrally formed with fixed bracket.

Through the above scheme, cover is wholely set with fixed bracket, the muddy water entered right above cover can be reduced, to keep away Exempt from muddy water and be adhered on cover to impact the detection of electromagnetic wave.

Further setting: the cover forms mounting portion far from one end of shell, and end face is equipped with for by gluing Blind area detection sensing device is installed on the stickup stationary plane of vehicle predetermined position by mode.

Through the above scheme, this detection sensing device can be mounted on the predeterminated position of vehicle by pasting stationary plane, It is convenient to operate.

Further setting: the stickup stationary plane is equipped with several through slots.

Through the above scheme, the pliability of stickup stationary plane can be increased by the way that through slot is arranged on pasting stationary plane, from And adapt the installation of this detection sensing device to the installation under varying environment.

Further setting: being equipped with the connector of both connections between the shell and cap, the connector includes setting In the wedge block of housing exterior walls, the connector further includes side that cover connect with fixed bracket being arranged in and towards separate cover The link block that extends of direction, the link block is equipped with the limit hole that is inserted into and is clamped for wedge block.

Through the above scheme, it is inserted into the limit hole of the link block of cap and is clamped by the wedge block on shell, with It realizes being connected and fixed for shell and cap, while facilitating the installation of user using wedge block.

Further setting: the outer wall of the shell is equipped with guide pad, and the inner wall of the cap is equipped with to be inserted into for guide pad The guide groove of cooperation.

Through the above scheme, when connecting shell and cap, the guide pad on shell is inserted into the guide groove on cap, To play the role of limit, convenient for the connection of shell and cap.

Compared with prior art, the embodiment of the utility model has the advantage that

1. being detected using electromagnetic sensor, detection efficiency is high, while being subject to waveguide pipe, can reduce detection model It encloses, to improve detection accuracy, and structure is simple, small in size, the occasion for being applicable in installation is in extensive range, and visits with ultrasonic wave Head, camera are compared, and the radar based on the monitoring of electromagnetic wave blind area can more overcome the influence of the scenes such as bad weather, night；

2. by injection glue in the housing to play the role of sealing waterproof, and sealing ring can avoid glue and enter Cavity between circuit board and cap is to cause the influence to detection performance；

3. the pliability of stickup stationary plane can be increased by the way that through slot is arranged on pasting stationary plane, to make detection device Installation be adapted to the installation under varying environment.

The additional aspect of the utility model and advantage will be set forth in part in the description, these will be from following description In become obvious, or recognized by the practice of the utility model.

Detailed description of the invention

The utility model is above-mentioned and/or additional aspect and advantage from the following description of the accompanying drawings of embodiments will Become obvious and be readily appreciated that, in which:

Fig. 1 is the structural schematic diagram of the utility model embodiment；

Fig. 2 is the Structure explosion diagram of the utility model embodiment；

Fig. 3 is the top view of the utility model embodiment；

Fig. 4 is the A-A cross-sectional view of Fig. 3.

In figure, 1, probe assembly；11, circuit board；12, electromagnetic sensor；13, waveguide pipe；2, support component；21, shell Body；211, guide pad；212, support rod；22, cap；221, cover；222, fixed bracket；223, support rib；23, connector； 231, link block；232, limit hole；233, wedge block；24, mounting portion；241, stationary plane is pasted；242, stickers；243, lead to Slot；3, sealing ring.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and cannot be construed to the utility model Limitation.

The utility model relates to a kind of blind areas to detect sensing device, be applicable on the bumper for being installed on automobile tail, be used for Detect and feed back the traffic information of blind area of vehicle rear mirror.

Referring to Fig. 1 and Fig. 2, detection sensing device in the blind area includes probe assembly 1 and for installing probe assembly 1 Support component 2 on vehicle bumper.

The support component 2 includes shell 21 and cap 22, and the connection of both connections is equipped between shell 21 and cap 22 Part 23, also, cap 22 includes cover 221 and the fixation bracket 222 for realizing cap 22 and the connection of shell 21, cover 221 It is integrally formed with fixed bracket 222.

The connector 23 includes side that cover 221 is connect with fixed bracket 222 being arranged in and towards separate cover 221 The link block 231 that direction extends, limit hole 232 is provided on link block 231, and connector 23 further includes being arranged in 21 outer wall of shell On wedge block 233, the wedge shape of wedge block 233 face away from cap 22 and far from shell 21 direction tilt.

Cap 22, shell 21 and link block 231 are all made of plastics and are made, and have certain elastic deformation ability；Work as shell When the wedge block 233 of body 21 is connected in the limit hole 232 of cap 22, closely connects between cap 22 and shell 21, then adopt Shell 21 and 22 welding of cap are fixed and sealed with laser welding process, to prevent liquid between cap 22 and shell 21 Gap enters in cap 22.

The outer wall of the shell 21 is additionally provided with the guide pad 211 of the thickness direction extension along shell 21, the fixation of cap 22 The inner wall of bracket 222, which is equipped with, to be inserted into limit the guide groove (not illustrating in figure) of 22 moving direction of cap for guide pad 211.

The inner wall of the shell 21 is equipped with the support rod 212 that several thickness directions along shell 21 extend, the present embodiment In support rod 212 be provided with eight, and the section of shell 21 is rectangle, is provided on each medial surface of shell 21 Two support rods 212.

The probe assembly 1 includes the circuit board 11 being mounted in shell 21, and electromagnetic wave sensing is connected on circuit board 11 Device 12, the circuit board 11 in the present embodiment use pcb board, and electromagnetic sensor 12 is chip type millimeter wave sensor, circuit board Enclosing is also connected on 11 in the waveguide pipe 13 of millimeter wave sensor surrounding, the section of waveguide pipe 13 is rectangle, millimeter wave sensing Device includes two antennas (not illustrating in figure), and waveguide pipe 13 is covered in the chip exterior of millimeter wave sensor and is separated into two Region, two antennas respectively correspond in the chip for the millimeter wave sensor that two regions of waveguide pipe 13 are covered, thus The detection angle and range of electromagnetic wave are reduced, to achieve the purpose that enhance detection efficiency.

The waveguide pipe 13 is used to control the detection angle and range of the electromagnetic wave that millimeter wave sensor is emitted, waveguide pipe 13 include plastic body (not illustrating in figure) and are covered in the plastic body outer surface coat of metal (not illustrating in figure), this implementation Waveguide pipe 13 is made using in plastic body electroplating surface conduction mist chromium in example.

Referring to Fig. 3 and Fig. 4, it is equipped between cap 22 and circuit board 11 for keeping electromagnetic sensor 12 and cap 22 The position limiting structure of spacing, i.e., by position limiting structure to limit cover 221 at a distance from the chip of millimeter wave sensor, position limiting structure For be arranged in 221 inner wall of cover and towards the direction of circuit board 11 extend several support ribs 223, and support rib 223 perpendicular to Cover 221, the one end of support rib 223 far from cover 221 offset with circuit board 11, then circuit board 11 arrives the distance etc. of cover 221 In the length of support rib 223, value is determined for one, so that it is determined that the distance between the chip of cover 221 and millimeter wave sensor, this Outside, the chip of millimeter wave sensor can be changed to the distance of cover 221 by changing the length of support rib 223.

Referring to fig. 2, it is anti-to play sealing far from glue is injected in the side space of cap 22 to be located at circuit board 11 for shell 21 The effect of water, and glue enters the space between circuit board 11 and cap 22 in order to prevent, and the side of circuit board 11 is equipped with Sealing ring 3 in the sealing ring 3 of its circumferentially extending, the present embodiment is rubber ring, and the section of sealing ring 3 is L-shaped, and circuit board 11 are affixed with the medial surface of sealing ring 3, and circuit board 11 is erected on the support rod 212 of shell 21 by sealing ring 3.

Cover 221 forms mounting portion 24 far from one end of shell 21, and the end face of mounting portion 24 is equipped with for by gluing Detection sensing device is installed on the stickup stationary plane 241 of vehicle predetermined position by mode, is pasted and is also pasted on stationary plane 241 Stickers 242, the stickers 242 in the present embodiment are " returning " type 3M glue, and paste and offer several enhancings on stationary plane 241 Paste the through slot 243 of the pliability of stationary plane 241.

Specific work process:

It, can be first by millimeter wave sensor and waveguide pipe 13 when installing blind area detection sensing device on the bumper of vehicle It is welded on circuit board 11 by pin, the chip of millimeter wave sensor is between circuit board 11 and waveguide pipe 13, then Circuit board 11 is fitted into cap 22, and support rib 223 and circuit board 11 in cap 22 is made to offset, later by 3 sets of sealing ring It connects on the periphery of circuit board 11, then assembles shell 21 and cap 22, by plugging in the guide pad 211 of 21 outer wall of shell Enter into the guide groove of fixed 222 inner wall of bracket, and moved along the length direction of guide pad 211, makes cap 22 gradually by shell The lid of body 21 closes, and when cap 22 is closely connect with shell 21, the wedge block 233 of shell 21 is connected to the limit hole of link block 231 In 232, to realize the connection of shell 21 Yu cap 22, while using laser welding process by shell 21 and 22 welding of cap and close Envelope；Finally it is located at circuit board 11 in shell 21 and injects glue far from the side of cover 221, plays the role of sealing waterproof.

It is socketed in the sealing ring 3 on 11 periphery of circuit board, the glue in shell 21 can be prevented to be flowed into circuit board 11 and shell Cavity between lid 22 influences the detection performance of probe assembly 1.

Blind area detects sensing device and uses Millimeter Wave Applications technology, is visited using millimeter wave sensor to vehicle blind zone It surveys, the wave frequency that millimeter wave sensor is emitted can penetrate plastic shell between 77-81GHz range, then can will visit It surveys component 1 and bumper is pasted by support component 2, preferably to be detected.

The detection angle and range for the bootable electromagnetic wave of waveguide pipe 13 installed on circuit board 11 reduce detection range, with Achieve the purpose that enhance detection accuracy, and be respectively provided with antenna in each rectangular area of waveguide pipe 13, detection effect can be improved Rate；Meanwhile waveguide pipe 13 is made of the technique of " plastic material+electroplating surface conduction mist chromium ", uses the gold such as copper than traditional Belong to material, has the advantages that dimensional accuracy is high, assembly technology is simple and at low cost.

In addition, the chip of millimeter wave sensor can be limited to the distance of cap 22 by the support rib 223 of the inside of cap 22, Reach optimum performance to make to detect sensing device, and can be by adjusting the length of support rib 223 to adjust millimeter wave sensing The chip of device improves the applicability of probe assembly 1 to the distance of cap 22.

The stickup stationary plane 241 of cover 221 is through the 3M glue of " returning " type on bumper, and " returning " type 3M glue is in enclosing knot Structure can be effectively prevented muddy water and enter and attach on cover 221, the detection to avoid muddy water to blind area detection sensing device The influence of performance.

The through slot 243 of cover 221 pasting stationary plane 241 and being arranged, can be enhanced the pliability for pasting stationary plane 241, with Adapt blind area detection sensing device to the installation of the cambered surface of different vehicle bumper.

Universal electromagnetic sensor is sufficiently bulky on the market, and the utility model has the advantages of simple structure, small in size, is applicable in peace The occasion of dress is in extensive range, and compared with ultrasonic probe, camera, and the radar based on the monitoring of electromagnetic wave blind area can more overcome The influence of the scenes such as bad weather, night is, it can be achieved that all weather operations.

The above is only some embodiments of the utility model, it is noted that for the common skill of the art For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and Retouching also should be regarded as the protection scope of the utility model.

Claims (11)

1. a kind of blind area detects sensing device, it is characterized in that: including support component and probe assembly, the support component includes tool There is the shell of opening and be covered on the cap of the opening, the probe assembly includes the circuit board being installed in cap, described Circuit board is equipped with the electromagnetic sensor of electromagnetic wave for transmitting and receiving, is equipped between the cap and circuit board for protecting Hold the position limiting structure of the spacing of electromagnetic sensor and cap.

2. blind area according to claim 1 detects sensing device, it is characterized in that: the circuit board is equipped with waveguide pipe, institute Waveguide pipe is stated to enclose in the surrounding of the electromagnetic sensor.

3. blind area according to claim 2 detects sensing device, it is characterized in that: the electromagnetic sensor includes two days Line, the outside that the waveguide pipe is covered on electromagnetic sensor are separated into two regions, and two antennas respectively correspond and are located at In the electromagnetic sensor that two regions of waveguide pipe are covered.

4. blind area according to claim 2 detects sensing device, it is characterized in that: the waveguide pipe include plastic body and It is covered in the coat of metal of plastic body outer surface.

5. blind area according to claim 1 detects sensing device, it is characterized in that: the position limiting structure includes being arranged in cap Several support ribs interior and towards the extension of circuit board direction, the one end of the support rib far from cap offsets with circuit board.

6. blind area according to claim 1 detects sensing device, it is characterized in that: to be located at electromagnetic sensor remote for the shell Glue is injected in the side of shrinking away from theshell lid, and the side of the circuit board is equipped with the sealing ring along its circumferentially extending.

7. blind area according to claim 1 detects sensing device, it is characterized in that: the cap include cover and for realizing Cap fixed bracket connected to the housing, the cover and fixed bracket are integrally formed.

8. blind area according to claim 7 detects sensing device, it is characterized in that: the cover is formed far from one end of shell Mounting portion, end face are equipped with for blind area detection sensing device to be installed on vehicle predetermined position by way of gluing Paste stationary plane.

9. blind area according to claim 8 detects sensing device, it is characterized in that: being offered on the mounting portion several logical Slot.

10. blind area according to claim 1 detects sensing device, it is characterized in that: the company of being equipped between the shell and cap The connector of the two is connect, the connector includes the wedge block that housing exterior walls are arranged in, and the connector further includes being arranged in face It covers the side connecting with fixed bracket and the link block extended towards the direction far from cover, the link block is equipped with for wedge block The limit hole for being inserted into and being clamped.

11. blind area according to claim 1 detects sensing device, it is characterized in that: the outer wall of the shell is equipped with guide pad, The inner wall of the cap is equipped with the guide groove for guide pad insertion cooperation.