Tail door kick radar integrated with projection lamp

Abstract

The utility model relates to a tail door kicking radar integrated with a projection lamp, comprising a radome which comprises a hollow protruding part and a plurality of hot melt columns, and the periphery of each hot melt column is provided with a supporting surface; a lens accommodated in the protruding portion of the radome; the lens comprises a collimating lens, a film and an outer lens which are arranged in sequence, and a projection pattern is printed on the film; the printed circuit board is fixedly connected with the radome and is tightly attached to the lens; the printed circuit board comprises a radio frequency integrated chip and a light-emitting device; the shielding cover is fixedly connected with the radome; the radome, the lens, the printed circuit board and the shielding cover are sequentially arranged from bottom to top. The utility model can be conveniently arranged and assembled on a vehicle, and the overall volume and cost are effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vehicle-mounted millimeter wave radar, more particularly to a tailgate kick radar integrated with a projection lamp. BACKGROUND

[0002] With the increasing intelligence of automobiles, electric tailgates have become standard configurations for many vehicle models, and the kick-to-open tailgate function has become a routine function of automobiles. At present, a vehicle tailgate kick sensor system usually consists of a millimeter wave radar and a projection lamp module. The projection lamp module in the system can project a visible light spot to indicate the position of a user's kick or step, and the millimeter wave radar is used to measure whether there is a kick or step action at the projection position.

[0003] The vehicle tailgate kick sensor system described above usually adopts a split design scheme of millimeter wave radar and projection lamp module. When in use, the visible light spot projected by the projection lamp module needs to coincide with the ranging range of the millimeter wave radar. However, due to the split design scheme described above, the arrangement and assembly of each module on the vehicle are complex, and the overall size and cost of the vehicle tailgate kick sensor system are also large. SUMMARY

[0004] To solve the problems in the prior art, the utility model provides a tailgate kick radar integrated with a projection lamp to simplify the arrangement and assembly and reduce the size and cost.

[0005] The utility model provides a tailgate kick radar integrated with a projection lamp, which comprises: a radar cover comprising a hollow protruding part and a plurality of hot-melt columns, the periphery of each hot-melt column is provided with a support surface; a lens accommodated in the protruding part of the radar cover; the lens comprises a collimating lens, a film and an outer lens arranged in sequence, the film is printed with a projection pattern; a printed circuit board fixedly connected with the radar cover and closely attached to the lens; the printed circuit board comprises a radio frequency integrated chip and a light emitting device; a shielding cover fixedly connected with the radar cover; the radar cover, the lens, the printed circuit board and the shielding cover are sequentially arranged from bottom to top.

[0006] Further, a lens cover is fixedly connected with and closely attached to the outer side wall of the protruding part, and the periphery of the lens is closely attached to the inner side wall of the protruding part.

[0007] Further, the position of the light emitting device is aligned with the central axis of the lens.

[0008] Further, the lens has a positioning shaft, the printed circuit board has a first positioning hole for cooperating with the positioning shaft and a second positioning hole for cooperating with the hot-melt column.

[0009] Furthermore, the shielding cover includes a third positioning hole for engaging with the heat-fusion post.

[0010] Furthermore, the shielding cover is provided with an inner convex surface, and a heat-conducting sheet is attached to the inner convex surface.

[0011] Furthermore, the heat-conducting sheet is also attached to the printed circuit board.

[0012] Furthermore, it also includes a back cover, which is fixedly connected to the radar dome.

[0013] Furthermore, the rear cover is provided with ventilation holes.

[0014] Furthermore, the vent holes are covered with a waterproof and breathable membrane, which is adhered to the inner surface of the back cover.

[0015] This utility model provides a tailgate kick radar with integrated projection light, which integrates projection light lens and light-emitting device, making it easy to install on vehicles and effectively reducing overall size and cost. Attached Figure Description

[0016] Figure 1 An exploded view of the tailgate kick radar with integrated projection light according to this utility model;

[0017] Figure 2(a) is a top view of the tailgate kick radar with integrated projection light according to the present invention;

[0018] Figure 2(b) is a cross-sectional view taken along line 2B-2B in Figure 2(a); Figure 2(c) is a cross-sectional view taken along line 2C-2C in Figure 2(a);

[0019] Figure 3 for Figure 1 A schematic diagram of the radar dome in the diagram;

[0020] Figure 4(a) shows Figure 1 A schematic diagram of the lens structure in Figure 4(b); Figure 1 An exploded view of the scene;

[0021] Figure 5 for Figure 1 A schematic diagram of the structure of the printed circuit board in the diagram;

[0022] Figure 6 for Figure 1 A schematic diagram of the shielding cover in the diagram;

[0023] Figure 7 for Figure 1 A schematic diagram of the back cover structure. Detailed Implementation

[0024] The preferred embodiments of the present utility model are described in detail below with reference to the drawings.

[0025] As Figures 1 to 7 shown in the utility model provides a kind of integrated projection lamp's tail door kick radar, it is installed in the lower inside of rear bumper of vehicle, it includes lens cover 1, radar cover 2, lens 3, printed circuit board 4, heat-conducting sheet 5, shielding cover 6, waterproof breathable membrane 7 and back cover 8 in turn from below to above.

[0026] Wherein, lens cover 1 is fixedly connected with radar cover 2, to play the role of sealing waterproof.In the embodiment, the material of lens cover 1 is transparent plastic PC, and is fixed together with radar cover 2 by laser welding.

[0027] As shown in Figure 2 (b), radar cover 2 has a hollow protruding part 21, lens cover 1 is fixedly connected with the outside wall of protruding part 21 and closely adheres.As shown in Figure 2 (c) and Figure 3 As shown in Figure 2 (b), radar cover 2 has a hollow protruding part 21, lens cover 1 is fixedly connected with the outside wall of protruding part 21 and closely adheres.As shown in Figure 2 (c) and

[0028] Lens 3 is contained in the protruding part 21 of radar cover 2, and its periphery closely adheres to the inner side wall of protruding part 21.As shown in Figure 2 (b) and Figure 4 (a), lens 3 has positioning shaft 31, for cooperating with corresponding positioning hole to carry out accurate positioning.As shown in Figure 4 (b), lens 3 also includes collimating lens 32, film sheet 33 and outer lens 34 in turn, wherein, film sheet 33 is printed with projection pattern, and projection pattern can be set according to user's preference.

[0029] As Figure 5As shown, the printed circuit board 4 includes a first positioning hole 41 for cooperating with the positioning shaft 31, a second positioning hole 42 for cooperating with the hot melt column 22, a radio frequency integrated chip 43 and a light emitting device 44. The first positioning hole 41 cooperates with the positioning shaft 31 so that the top surface of the lens 3 closely abuts the bottom surface of the printed circuit board 4, thereby fixing the lens 3 between the radar cover 2 and the printed circuit board 4. The second positioning hole 42 cooperates with the hot melt column 22 and the corresponding support surface 23, so that the printed circuit board 4 and the radar cover 2 can be fixed together. The surface of the printed circuit board 4 has an antenna, and the radar signal is transmitted through the antenna, and the antenna is connected to the radio frequency integrated chip 43 through the radio frequency transmission line on the surface of the printed circuit board 4 (both the antenna and the radio frequency transmission line are formed by etching the copper layer on the surface of the PCBA). The radio frequency integrated chip 43 receives instructions from the vehicle and controls the light emitting device 44 to emit light. The position of the light emitting device 44 is aligned with the central axis of the lens 3, so that the light emitted by the light emitting device 44 is adjusted by the collimating lens 32 and then irradiates onto the film 33, and then is enlarged by the external lens 34 and projected onto the ground to form a light spot, which is used to indicate the position of the user's kick or step.

[0030] As shown, Figure 6 The shielding cover 6 includes a third positioning hole 61 for cooperating with the hot melt column 22, and the third positioning hole 61 cooperates with the corresponding hot melt column 22 and the support surface 23, so that the shielding cover 6 and the radar cover 2 can be fixed together. In order to ensure that the radar can work normally in a high temperature environment, the shielding cover 6 is also provided with an inner convex surface 62, and a heat conduction sheet 5 is attached to the inner convex surface 62, and the side of the heat conduction sheet 5 not attached to the inner convex surface 62 is attached to the printed circuit board 4, thereby transmitting the heat generated by the radio frequency integrated chip 43 and the light emitting device 44 to the shielding cover 6.

[0031] The rear cover 8 is fixedly connected with the radar cover 2 to play a sealing and waterproof role. In order to ensure the pressure balance between the inside and the surrounding environment of the radar, the rear cover 8 is provided with a breathable hole 81, and the breathable hole 81 is covered with a waterproof breathable film 7, and the waterproof breathable film 7 is attached to the inner surface of the rear cover 8 by back glue. In this embodiment, the material of the rear cover 8 is plastic PBT-GF30, and the rear cover 8 is fixedly connected with the radar cover 2 by laser welding.

[0032] The above is only a preferred embodiment of the present application, not to limit the scope of the present application, and the above embodiment of the present application can also be variously changed. That is, any simple, equivalent changes and modifications made according to the content of the claims and the description of the present application fall within the scope of the claims of the present application. The present application is not described in detail.

Claims

1. A tailgate kick sensor with integrated projection light, comprising: The application relates to a radar cover, which comprises a hollow protruding part and a plurality of hot-melt columns, the periphery of each hot-melt column is provided with a supporting surface; a lens is accommodated in the protruding part of the radar cover; the lens comprises a collimating lens, a film and an outer lens which are arranged in sequence, and the film is printed with a projection pattern; a printed circuit board is fixedly connected with the radar cover and closely adheres to the lens; the printed circuit board comprises a radio frequency integrated chip and a light-emitting device; a shielding cover is fixedly connected with the radar cover; the radar cover, the lens, the printed circuit board and the shielding cover are sequentially arranged from bottom to top. The lens cover is fixedly connected with the outer side wall of the protruding part and closely adheres to the lens. The position of the light-emitting device is aligned with the central axis of the lens. The lens has a positioning shaft, the printed circuit board has a first positioning hole for cooperating with the positioning shaft and a second positioning hole for cooperating with the hot-melt column. The shielding cover comprises a third positioning hole for cooperating with the hot-melt column. The shielding cover is provided with an inner convex surface, and a heat-conducting sheet is pasted on the inner convex surface.

2. The integrated tailgate kick sensor and projection lamp of claim 1, wherein, The heat-conducting sheet is also pasted on the printed circuit board.

3. The integrated tailgate kick sensor and projection lamp of claim 1, wherein, A rear cover is further provided, and the rear cover is fixedly connected with the radar cover.

4. The integrated tailgate kick sensor and projection lamp of claim 1, wherein, The rear cover is provided with a breathable hole.

5. The integrated tailgate kick sensor and projection lamp of claim 1, wherein, A waterproof and breathable film is covered on the breathable hole, and the waterproof and breathable film is pasted on the inner surface of the rear cover.

6. The integrated tailgate kick sensor and projection lamp of claim 1, wherein, ​ 7. The integrated tailgate kick sensor and projection lamp of claim 6, wherein, ​ 8. The integrated tailgate kick sensor and projection lamp of claim 1, wherein, ​ 9. The integrated tailgate kick sensor and projection lamp of claim 8, wherein, ​ 10. The integrated tailgate kick sensor and projection lamp of claim 9, wherein, ​

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