Automobile sensor assembly

Abstract

The utility model relates to the technical field of sensors, in particular to an automobile sensor assembly which comprises a base plate, the top of the base plate is fixedly connected with an integrally-formed shading outer frame, the top of the base plate is fixedly connected with a shading inner frame located in the shading outer frame, and the two sides of the shading inner frame are connected with the inner surface of the shading outer frame. According to the utility model, the shading ring sleeve is packaged at the outer side of the photosensitive chip for shading, the performance of the sensor is ensured, and the movable rectangular sleeve is utilized to position the positioning clamping plate, so that the positioning clamping plate is not damaged, and the reliability of the sensor is improved. The first combined ring with the first lens and the second combined ring with the second lens can be quickly assembled and disassembled from the shading ring sleeve, different lenses can be replaced for use without glue removal, and meanwhile, the first combined ring and the second combined ring are in threaded connection, so that the first lens and the second lens can be independently replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to an automobile sensor component. Background Art

[0002] A sensor is a detection device that can sense the information being measured and convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control. A large number of sensors are installed in products such as automobiles to assist the operation of the products.

[0003] In the prior art, an optical sensor proposed in patent application number "CN202320627023.X" includes a substrate, a surface of which is provided with a first light-shielding ring, and the first light-shielding ring extends along its axial direction; a photosensitive chip, which is arranged on the substrate and located in the first light-shielding ring.

[0004] However, in the above patent application, the sensitivity of the photosensitive chip is improved by setting a lens on the photosensitive chip to focus light, but the two lenses are encapsulated together on the substrate through potting glue. Each time a better lens is used, the glue needs to be removed and then re-potted. The operation is complicated and it is inconvenient to replace different lenses for use according to different usage requirements. Utility Model Content

[0005] The purpose of the present utility model is to provide an automobile sensor assembly to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] An automotive sensor assembly includes a substrate, wherein the top of the substrate is fixedly connected to an integrally formed light-shielding outer frame, the top of the substrate and located inside the light-shielding outer frame is fixedly connected to a light-shielding inner frame, both sides of the light-shielding inner frame are connected to the inner surface of the light-shielding outer frame, a photosensitive chip is fixedly installed on the top of the substrate and located inside the light-shielding inner frame, and light-emitting chips are installed on the top of the substrate and on both sides of the light-shielding inner frame.

[0008] A light-shielding ring sleeve is fixedly installed on the top of the substrate and located inside the light-shielding inner frame. The light-shielding ring sleeve is arranged on the outer surface of the photosensitive chip. A lens assembly is arranged inside the light-shielding ring sleeve and above the photosensitive chip. The lens assembly includes a first combination ring with a first lens installed inside and a second combination ring with a second lens installed inside. The first combination ring is installed below the second combination ring.

[0009] Preferably, an annular thread groove is provided on the inner side of the bottom of the second combination ring, an annular connecting ring is fixedly connected to the top of the first combination ring, and a thread is provided on the outer surface of the annular connecting ring for realizing threaded connection between the annular connecting ring and the annular thread groove.

[0010] Preferably, the inner surface of the light-shielding ring sleeve is fixedly connected to a bearing ring, which is provided with positioning holes in a circular array, and the bottom of the first combination ring is fixedly connected to positioning shafts in a circular array, and the positioning shafts and positioning holes are adapted to each other.

[0011] Preferably, elastic clips are fixedly connected to the top of the bearing ring and on both sides of the first combination ring, and the tops of the elastic clips are inclined.

[0012] Preferably, a positioning bayonet is provided on the top of the light-shielding ring sleeve, and positioning clamping plates used in conjunction with the positioning bayonet are fixedly connected to both sides of the second combination ring.

[0013] Preferably, a sliding plate is slidably connected to the light-shielding inner frame, one end of the sliding plate is fixedly connected to a rectangular sleeve, the rectangular sleeve is arranged on the positioning card plate, and a reset spring is fixedly connected between the sliding plate and the light-shielding inner frame.

[0014] Beneficial effects of the utility model:

[0015] The utility model ensures sensor performance by encapsulating a light-shielding ring sleeve on the outside of a photosensitive chip to shield light, and at the same time uses a movable rectangular sleeve to position a positioning card plate, so that a first combination ring with a first lens and a second combination ring with a second lens can be quickly disassembled and assembled with the light-shielding ring sleeve, and different lenses can be replaced for use without removing glue. At the same time, the first combination ring and the second combination ring are threadedly connected, so that the first lens and the second lens can be replaced independently. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, it is possible for a person skilled in the art to derive other drawings based on these drawings without inventive effort.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This utility model Figure 1 A magnified view of the structure at point A;

[0019] Figure 3 This utility model Figure 2 Schematic diagram of the structure of the middle light-shielding ring sleeve;

[0020] Figure 4 This utility model Figure 3 A cross-sectional view of the middle light-shielding ring sleeve;

[0021] Figure 5 This utility model Figure 4 A magnified view of the structure at point A;

[0022] Figure 6 This utility model Figure 4 Schematic diagram of the structure of the bottom of the middle light-shielding ring.

[0023] The reference numerals in the figures are as follows:

[0024] 1. Substrate, 2. Light-shielding outer frame, 3. Light-shielding inner frame, 4. Photosensitive chip, 5. Light-emitting chip, 6. Light-shielding ring sleeve, 7. First lens, 8. First combination ring, 9. Second lens, 10. Second combination ring, 11. Annular connecting ring, 12. Bearing ring, 13. Positioning hole, 14. Positioning shaft, 15. Elastic clip, 16. Positioning bayonet, 17. Positioning card plate, 18. Sliding plate, 19. Reset spring, 20. Rectangular sleeve. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] A car sensor assembly includes a substrate 1, the top of the substrate 1 is fixedly connected to an integrally formed light-shielding outer frame 2, the top of the substrate 1 is fixedly connected to a light-shielding inner frame 3 located inside the light-shielding outer frame 2, both sides of the light-shielding inner frame 3 are connected to the inner surface of the light-shielding outer frame 2, a photosensitive chip 4 is fixedly installed on the top of the substrate 1 and inside the light-shielding inner frame 3, and light-emitting chips 5 are installed on the top of the substrate 1 and on both sides of the light-shielding inner frame 3.

[0027] A light-shielding ring sleeve 6 is fixedly installed on the top of the substrate 1 and located inside the light-shielding inner frame 3. The light-shielding ring sleeve 6 is sleeved on the outer surface of the photosensitive chip 4. A lens assembly is provided inside the light-shielding ring sleeve 6 and above the photosensitive chip 4. The lens assembly includes a first combination ring 8 with a first lens 7 installed inside, and a second combination ring 10 with a second lens 9 installed inside. The first combination ring 8 is installed below the second combination ring 10.

[0028] like Figure 1The photosensitive chip 4 and the light-emitting chip 5 are both existing technologies. The photosensitive chip 4 is used to receive the light emitted by the light-emitting chip 5 to the detection object and reflected, and generate an output signal according to the intensity of the light, and then focus the light through the first lens 7 and the second lens 9 to improve the sensitivity of the photosensitive chip 4. The photosensitive chip 4 and the light-emitting chip 5 are both encapsulated on the substrate 1 by potting glue. The substrate 1 is installed on the car. The optical sensor composed of the photosensitive chip 4 and the light-emitting chip 5 is used in the car. The light-shielding outer frame 2, the light-shielding inner frame 3 and the light-shielding ring sleeve 6 are all made of light-shielding materials, which can reduce stray light and ensure the detection performance of the sensor.

[0029] The light emitting chip 5 and the light sensing chip 4 are a set of combined equipment, and the model thereof is HSE-R2T03N2R light projector + light receiver opposing beam type.

[0030] An annular thread groove is provided on the inner side of the bottom of the second combination ring 10, and an annular connecting ring 11 is fixedly connected to the top of the first combination ring 8. The outer surface of the annular connecting ring 11 is provided with threads for realizing threaded connection between the annular connecting ring 11 and the annular thread groove.

[0031] like Figure 3 and Figure 4 The first assembly ring 8 and the second assembly ring 10 can be connected together by means of the threaded connection between the annular connecting ring 11 and the annular thread groove, and vice versa, the first assembly ring 8 and the second assembly ring 10 can be separated.

[0032] The inner surface of the light-shielding ring sleeve 6 is fixedly connected to a bearing ring 12 , which is provided with positioning holes 13 in a circular array. The bottom of the first combination ring 8 is fixedly connected to positioning shafts 14 in a circular array, and the positioning shafts 14 are adapted to the positioning holes 13 .

[0033] like Figure 3 、 Figure 4 、 Figure 5 and Figure 6 The bearing ring 12 provides positioning and support for the first and second combination rings 8 and 10 from below the first combination ring 8 , and the positioning shaft 14 passes through the positioning hole 13 to prevent the first combination ring 8 from rotating.

[0034] Elastic clips 15 are fixedly connected to the top of the carrying ring 12 and on both sides of the first combination ring 8 , and the top of the elastic clips 15 is tilted.

[0035] like Figure 4 and Figure 5 The top of the elastic clip 15 is tilted so that the downward movement of the first combination ring 8 will open the elastic clip 15, and the elastic clip 15 is used to assist in the clamping and positioning of the first combination ring 8.

[0036] A positioning bayonet 16 is provided on the top of the light-shielding ring sleeve 6 , and positioning clamping plates 17 used in conjunction with the positioning bayonet 16 are fixedly connected to both sides of the second combination ring 10 .

[0037] A sliding plate 18 is slidably connected to the light-shielding inner frame 3 , one end of the sliding plate 18 is fixedly connected to a rectangular sleeve 20 , which is sleeved on the positioning card plate 17 , and a reset spring 19 is fixedly connected between the sliding plate 18 and the light-shielding inner frame 3 .

[0038] like Figure 1 and Figure 2 There is a protrusion on the top of the sliding plate 18, and its protrusion position is connected to the reset spring 19. One end of the sliding plate 18 passes through the light-shielding inner frame 3, and the rectangular sleeve 20 is sleeved on the positioning card plate 17 to prevent the positioning card plate 17 and the second combination ring 10 from moving up.

[0039] The working principle of the automobile sensor assembly provided by the utility model is as follows:

[0040] The photosensitive chip 4, the light-emitting chip 5 and the light-shielding ring 6 are encapsulated on the substrate 1 using potting glue. Then, the first combination ring 8 and the second combination ring 10 are moved down into the light-shielding ring 6, and the positioning card plate 17 is snapped into the positioning bayonet 16. At this time, the first lens 7 and the second lens 9 are located above the photosensitive chip 4 to focus light.

[0041] The return spring 19 pushes the sliding plate 18 so that the rectangular sleeve 20 is sleeved onto the surface of the positioning card plate 17 to position the first combination ring 8 and the second combination ring 10. Conversely, the rectangular sleeve 20 is pulled to one side to separate the rectangular sleeve 20 and the positioning card plate 17. At this time, the first combination ring 8 and the second combination ring 10 can be moved upward to remove the first lens 7 and the second lens 9 from the photosensitive chip 4.

[0042] Compared with related technologies, the automotive sensor assembly provided by the present invention has the following beneficial effects:

[0043] The utility model ensures the performance of the sensor by encapsulating the shading ring sleeve 6 on the outside of the photosensitive chip 4 for shading, and at the same time uses the movable rectangular sleeve 20 to position the positioning card plate 17, so that the first combination ring 8 with the first lens 7 and the second combination ring 10 with the second lens 9 can be quickly disassembled and assembled with the shading ring sleeve 6, and different lenses can be replaced for use without removing the glue. At the same time, the first combination ring 8 and the second combination ring 10 are threadedly connected, so that the first lens 7 and the second lens 9 can be replaced independently.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. An automotive sensor assembly, comprising a substrate (1), characterized in that: The top of the substrate (1) is fixedly connected to an integrated light-shielding outer frame (2); the top of the substrate (1) is fixedly connected to a light-shielding inner frame (3) located inside the light-shielding outer frame (2); both sides of the light-shielding inner frame (3) are connected to the inner surface of the light-shielding outer frame (2); a photosensitive chip (4) is fixedly installed on the top of the substrate (1) and inside the light-shielding inner frame (3); and light-emitting chips (5) are installed on the top of the substrate (1) and on both sides of the light-shielding inner frame (3); A light-shielding ring sleeve (6) is fixedly installed on the top of the substrate (1) and located inside the light-shielding inner frame (3). The light-shielding ring sleeve (6) is sleeved on the outer surface of the photosensitive chip (4). A lens assembly is provided inside the light-shielding ring sleeve (6) and located above the photosensitive chip (4). The lens assembly comprises a first combination ring (8) in which a first lens (7) is installed, and a second combination ring (10) in which a second lens (9) is installed. The first combination ring (8) is installed below the second combination ring (10).

2. The automotive sensor assembly according to claim 1, characterized in that: An annular thread groove is provided on the inner side of the bottom of the second combination ring (10), and an annular connecting ring (11) is fixedly connected to the top of the first combination ring (8). The outer surface of the annular connecting ring (11) is provided with a thread for realizing a threaded connection between the annular connecting ring (11) and the annular thread groove.

3. The automotive sensor assembly according to claim 1, characterized in that: The inner surface of the light-shielding ring sleeve (6) is fixedly connected to a bearing ring (12), and positioning holes (13) in a ring array are provided on the bearing ring (12). The bottom of the first combination ring (8) is fixedly connected to positioning shafts (14) in a ring array, and the positioning shafts (14) and the positioning holes (13) are adapted to each other.

4. The automotive sensor assembly according to claim 3, characterized in that: The top of the bearing ring (12) and both sides of the first combination ring (8) are fixedly connected with elastic clips (15), and the top of the elastic clips (15) is inclined.

5. The automotive sensor assembly according to claim 1, characterized in that: A positioning bayonet (16) is provided on the top of the light-shielding ring sleeve (6), and positioning clamping plates (17) used in conjunction with the positioning bayonet (16) are fixedly connected to both sides of the second combination ring (10).

6. The automotive sensor assembly according to claim 5, characterized in that: A sliding plate (18) is slidably connected to the light-shielding inner frame (3); one end of the sliding plate (18) is fixedly connected to a rectangular sleeve (20); the rectangular sleeve (20) is sleeved on the positioning card plate (17); and a return spring (19) is fixedly connected between the sliding plate (18) and the light-shielding inner frame (3).

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