Vehicle-mounted lens

Abstract

The utility model discloses a vehicle-mounted lens, and relates to the technical field of vehicle-mounted camera shooting, the vehicle-mounted lens comprises a mounting bracket, a protective cover, an ultrasonic vibrator and a power supply device, the mounting bracket is annularly arranged, and a first through hole is formed in the center of one end surface of the mounting bracket in a first direction in a penetrating manner and is used for mounting the lens; the protective cover is arranged on the mounting bracket in a sleeving manner and is used for protecting the lens; the ultrasonic vibrator is connected with the protective cover and used for driving the protective cover to vibrate in the first direction and the second direction; the power supply device comprises a wire, and the wire is electrically connected with the ultrasonic vibrator. Through the arrangement, the vehicle-mounted lens can be quickly and stably defrosted.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted cameras, in particular to a vehicle-mounted lens. Background Art

[0002] In rainy and snowy weather, car lenses are exposed to the outside, and a thick layer of frost is easily formed on the lens surface, which affects the clarity of the lens, causing image distortion or even complete unusability.

[0003] Existing defrosting methods for automotive lenses primarily rely on heating devices, using electric heating elements to heat the lens surface to melt the frost. However, this method suffers from slow defrosting speed, high energy consumption, and uneven heating, failing to meet the fast and stable requirements of practical applications. Utility Model Content

[0004] The main purpose of the utility model is to provide a vehicle-mounted lens, aiming to quickly and stably defrost the vehicle-mounted lens.

[0005] To achieve the above-mentioned purpose, the vehicle-mounted lens proposed in the present invention includes:

[0006] A mounting bracket is arranged in an annular shape, and a first through hole is formed at the center of an end surface of the mounting bracket in the first direction for mounting a lens;

[0007] A protective cover is mounted on the mounting bracket to protect the lens;

[0008] an ultrasonic vibrator connected to the protective cover, for driving the protective cover to vibrate along the first direction and the second direction;

[0009] The power supply device includes a wire electrically connected to the ultrasonic vibrator.

[0010] In one embodiment, a first protrusion is provided on an end surface of the mounting bracket in the first direction along the first direction;

[0011] The vehicle-mounted lens further includes:

[0012] The spacer is arranged in an annular shape and is respectively connected to the inner wall surface of the first protrusion and an end surface of the mounting bracket in the first direction. The protective cover is arranged on the spacer and is connected to the mounting bracket through the spacer.

[0013] In one embodiment, the spacer includes a first section and a second section whose sizes increase sequentially along the first direction, and the first section is arranged near the center of an end surface of the mounting bracket in the first direction;

[0014] The protective cover is connected to one end surface of the first section along the first direction, and is spaced apart from an inner side surface of a portion of the second section protruding from the first section along the second direction.

[0015] In one embodiment, the distance between the protective cover and the portion of the second section protruding from the first section in the second direction is d;

[0016] Among them, 0.04mm≤d≤0.06mm

[0017] In one embodiment, the vehicle-mounted lens further includes a pressure ring, which is sleeved on the first protrusion to limit the vibration of the protective cover along the second direction.

[0018] In one embodiment, the pressing ring comprises:

[0019] a first straight edge segment extending along the first direction and fixedly connected to a peripheral side surface of the first protrusion;

[0020] a second straight edge segment extending along the second direction and fixedly connected to a portion of an end surface of the first protrusion along the first direction;

[0021] Wherein, the second straight edge segment and the protective cover are spaced apart in the first direction.

[0022] In one embodiment, the second straight edge segment is spaced apart from the protective cover by a distance D in the first direction;

[0023] Among them, 0.09mm≤D≤0.11mm.

[0024] In one embodiment, a temperature sensor and / or a humidity sensor is further provided on the protective cover.

[0025] In one embodiment, the vehicle-mounted lens further includes an air pump, which is disposed on the mounting bracket, electrically connected to the wire, and disposed corresponding to the protective cover.

[0026] In one embodiment, a second protrusion is extended from the wall surface of the first through hole along the second direction toward the center of the mounting bracket, for engaging with the lens.

[0027] In the technical solution of this utility model, a lens is mounted on the first through-hole, and the protective cover is mounted on the mounting bracket. The protective cover is arched, with a radius of curvature similar to that of the lens. This effectively reduces optical distortion caused by light refraction and increases light transmittance, allowing the protective cover to be closer to the lens surface for better protection. The ultrasonic vibrator is connected to the protective cover. When frost forms on the protective cover, the ultrasonic wave drives the protective cover to vibrate in the first and second directions, effectively removing the frost covering the outer surface of the protective cover, thereby maintaining clear imaging of the lens. This high-frequency vibration can quickly and evenly remove frost, significantly improving the performance of the lens in extreme weather conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0029] Figure 1 This is a structural diagram of an embodiment of a vehicle-mounted lens provided by the present utility model;

[0030] Description of Figure Numbers:

[0031] 100. Vehicle-mounted lens; 1. Mounting bracket; 11. First through hole; 12. First protrusion; 13. Second protrusion; 14. Second through hole; 2. Protective cover; 3. Ultrasonic vibrator; 4. Power supply device; 41. Wire; 5. Spacer; 51. First section; 52. Second section; 6. Pressing ring; 61. First straight edge section; 62. Second straight edge section; 7. Lens; 8. Threaded hole.

[0032] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the 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 shall fall within the scope of protection of the present invention.

[0034] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] The present invention provides a vehicle-mounted lens 100 .

[0037] See also Figure 1 In one embodiment of the present invention, the vehicle-mounted lens 100 includes a mounting bracket 1, a protective cover 2, an ultrasonic vibrator 3, and a power supply device 4. The mounting bracket 1 is arranged in a ring shape, and a first through hole 11 is formed at the center of one end surface of the mounting bracket 1 in the first direction for mounting the lens 7; the protective cover 2 is sleeved on the mounting bracket 1 to protect the lens 7; the ultrasonic vibrator 3 is connected to the protective cover 2 to drive the protective cover 2 to vibrate along the first direction and the second direction; the power supply device 4 includes a wire 41, and the wire 41 is electrically connected to the ultrasonic vibrator 3;

[0038] It should be noted that the ultrasonic vibrator 3 operates by converting electrical energy into high-frequency mechanical vibrations, thereby generating vibrations or sound waves on the surface of an object. This is primarily based on the piezoelectric effect, utilizing the properties of piezoelectric materials to achieve mechanical vibrations, thereby driving the protective cover 2 to vibrate in the first and second directions.

[0039] The protective cover 2 is arranged in an arched shape, and its radius of curvature is close to that of the lens 7. It is understood that when the radius of curvature of the protective cover 2 is close to that of the lens 7, optical distortion caused by light refraction can be effectively reduced. Light will refract when it propagates through a curved surface. If the curvature of the protective cover 2 does not match that of the lens 7, the light may produce distorted or inaccurate imaging effects when it enters the lens 7 after passing through the protective cover 2. Matching the curvature of the protective cover 2 with that of the lens 7 can ensure that the light enters the lens 7 at a smaller refraction angle, reducing imaging distortion and maintaining image clarity and accuracy. In addition, the close radius of curvature of the protective cover 2 and the lens 7 can also optimize the transmittance of light and reduce energy loss due to reflection and refraction. By making the protective cover 2 fit more closely to the surface of the lens 7, light can pass through the surface of the lens 7 more smoothly, maximizing the efficiency of light entering the lens 7 and allowing the protective cover 2 to be closer to the surface of the lens 7 to provide better protection.

[0040] Furthermore, in order not to affect the integrity of the protective cover 2 , a second through hole 14 is formed on one end surface of the mounting bracket 1 in the first direction, and the second through hole 14 is used for the wire 41 to pass through.

[0041] In addition, a plurality of threaded holes 8 are provided on the other end face of the mounting bracket 1 along the first direction, and the plurality of threaded holes 8 are arranged around the center of the end face for fixing to an external vehicle; the present invention does not limit the number of the threaded holes 8. In this embodiment, the number of the threaded holes 8 is four and is evenly spaced around the center of the mounting bracket 1, thereby reducing the component force along the second direction and ensuring a stable connection.

[0042] In the technical solution of the present invention, a lens 7 is mounted on the first through hole 11, and the protective cover 2 is sleeved on the mounting bracket 1. The protective cover 2 is arched with a radius of curvature similar to that of the lens 7, thereby effectively reducing optical distortion caused by light refraction and increasing light transmittance. This also allows the protective cover 2 to be closer to the surface of the lens 7, providing better protection. The ultrasonic vibrator 3 is connected to the protective cover 2. When frost forms on the protective cover 2, the ultrasonic wave drives the protective cover 2 to vibrate in the first and second directions, effectively removing the frost covering the outer surface of the protective cover 2, thereby maintaining a clear imaging effect of the lens 7. This high-frequency vibration can quickly and evenly remove the frost layer, significantly improving the performance of the lens 7 in extreme weather.

[0043] It can be understood that when the ultrasonic vibrator 3 drives the protective cover 2 to vibrate, if the protective cover 2 is directly connected to the mounting bracket 1, it will inevitably cause the mounting bracket 1 to vibrate, thereby affecting the imaging effect of the lens 7. For this reason, in one embodiment of the present utility model, the mounting bracket 1 is provided with a first protrusion 12 along the first direction on one end face in the first direction; the vehicle-mounted lens 100 also includes a spacer 5, which is arranged in a ring shape and is respectively connected to the inner wall surface of the first protrusion 12 and one end face of the mounting bracket 1 in the first direction. The protective cover 2 is arranged on the spacer 5 and is connected to the mounting bracket 1 through the spacer 5. By setting the spacer 5, the vibration of the protective cover 2 is avoided from being directly transmitted to the mounting bracket 1, thereby increasing the stability of the imaging of the lens 7; in addition, the spacer 5 can also play a role in fixing and supporting the protective cover 2.

[0044] Specifically, in one embodiment of the present invention, the spacer 5 includes a first section 51 and a second section 52 whose sizes increase successively along the first direction, and the first section 51 is arranged near the center of an end face of the mounting bracket 1 in the first direction; the protective cover 2 is connected to an end face of the first section 51 along the first direction, and is spaced apart from the inner side face of the second section 52 protruding from the first section 51 along the second direction; by connecting the protective cover 2 to an end face of the first section 51 along the first direction, the protective cover 2 is supported along the first direction, thereby increasing the stability of the protective cover 2; secondly, the protective cover 2 is spaced apart from the inner side face of the second section 52 protruding from the first section 51 along the second direction, so that the protective cover 2 has a movable space for vibration along the second direction, and by reasonably setting the interval, the vibration amplitude of the protective cover 2 is controlled, thereby preventing excessive vibration from causing shaking to the vehicle-mounted lens 100.

[0045] Furthermore, in one embodiment of the present invention, the interval between the protective cover 2 and the portion of the second section 52 protruding from the first section 51 in the second direction is d; wherein, 0.04mm≤d≤0.06mm; when the interval d is within this range, the defrosting effect can be ensured while avoiding excessive vibration amplitude causing shaking to the vehicle-mounted lens 100.

[0046] It is understandable that it is also necessary to limit the vibration amplitude of the protective cover 2 in the first direction. To this end, in one embodiment of the present invention, the vehicle-mounted lens 100 also includes a pressure ring 6, which is mounted on the first protrusion 12 to limit the vibration of the protective cover 2 along the second direction.

[0047] Specifically, in one embodiment of the present invention, the pressure ring 6 includes a first straight edge segment 61 and a second straight edge segment 62, the first straight edge segment 61 extends along the first direction and is fixedly connected to the peripheral side surface of the first protrusion 12; the second straight edge segment 62 extends along the second direction and is fixedly connected to a portion of an end surface of the first protrusion 12 along the first direction; wherein, the second straight edge segment 62 and the protective cover 2 are spaced apart in the first direction; through such an arrangement, the pressure ring 6 is arranged in an L-shape and is connected to the first protrusion 12 in two directions, so that it can be stably mounted on the mounting bracket 1 and can limit the vibration of the protective cover 2 along the second direction.

[0048] Furthermore, in one embodiment of the present invention, the second straight edge segment 62 is spaced apart from the protective cover 2 in the first direction by D; wherein, 0.09 mm ≤ D ≤ 0.11 mm. When the space D is within this range, the defrosting effect can be ensured while avoiding excessive vibration amplitude causing shaking of the vehicle-mounted lens 100.

[0049] In addition, it can be understood that there is not always frost on the protective cover 2. If the ultrasonic vibrator 3 is always in the on state, unnecessary energy consumption will be caused. For this reason, in one embodiment of the present invention, a temperature sensor and / or a humidity sensor is also provided on the protective cover 2. By monitoring the temperature and humidity on the protective cover 2 in real time, the frost layer condition on the protective cover 2 can be judged, and the defrost device is turned on only when the frost layer is detected, thereby reducing unnecessary energy consumption.

[0050] In order to further enhance the defrosting effect, in one embodiment of the present invention, the vehicle-mounted lens 100 also includes an air pump, which is provided on the mounting bracket 1, electrically connected to the wire 41, and corresponding to the protective cover 2; when the ultrasonic vibrator 3 is turned on, the air pump is turned on synchronously, and the air pump generates a high-pressure airflow to blow the surface of the protective cover 2 to remove foreign matter, thereby enhancing the defrosting effect.

[0051] In one embodiment of the present invention, a second protrusion 13 is extended from the wall surface of the first through hole 11 along the second direction toward the center of the mounting bracket 1, and a snap groove is formed at a corresponding position of the lens 7. The second protrusion 13 is snapped into the snap groove to form a snap structure, thereby achieving a stable snapping of the lens 7 on the first through hole 11 and reducing the vibration transmitted to the lens 7 by the mounting bracket 1.

[0052] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A vehicle-mounted lens, characterized in that: The vehicle-mounted lens includes: A mounting bracket is arranged in an annular shape, and a first through hole is formed at the center of an end surface of the mounting bracket in the first direction for mounting a lens; A protective cover is mounted on the mounting bracket to protect the lens; an ultrasonic vibrator connected to the protective cover, for driving the protective cover to vibrate along the first direction and the second direction; The power supply device includes a wire electrically connected to the ultrasonic vibrator.

2. The vehicle-mounted lens according to claim 1, wherein: A first protrusion is provided on one end surface of the mounting bracket in the first direction along the first direction; The vehicle-mounted lens further includes: The spacer is arranged in an annular shape and is respectively connected to the inner wall surface of the first protrusion and an end surface of the mounting bracket in the first direction. The protective cover is arranged on the spacer and is connected to the mounting bracket through the spacer.

3. The vehicle-mounted lens according to claim 2, wherein: The spacer includes a first section and a second section whose sizes increase sequentially along the first direction, and the first section is arranged near the center of an end surface of the mounting bracket in the first direction; The protective cover is connected to one end surface of the first section along the first direction, and is spaced apart from an inner side surface of a portion of the second section protruding from the first section along the second direction.

4. The vehicle-mounted lens according to claim 3, wherein: The distance between the protective cover and the portion of the second section protruding from the first section in the second direction is d; Among them, 0.04mm≤d≤0.06mm.

5. The vehicle-mounted lens according to claim 2, wherein: The vehicle-mounted lens further includes a pressing ring, which is sleeved on the first protrusion to limit the vibration of the protective cover along the second direction.

6. The vehicle-mounted lens according to claim 5, wherein: The pressing ring comprises: a first straight edge segment extending along the first direction and fixedly connected to a peripheral side surface of the first protrusion; a second straight edge segment extending along the second direction and fixedly connected to a portion of an end surface of the first protrusion along the first direction; Wherein, the second straight edge segment and the protective cover are spaced apart in the first direction.

7. The vehicle-mounted lens according to claim 6, wherein: The second straight edge segment is spaced apart from the protective cover by a distance D in the first direction; Among them, 0.09mm≤D≤0.11mm.

8. The vehicle-mounted lens according to claim 1, wherein: The protective cover is also provided with a temperature sensor and / or a humidity sensor.

9. The vehicle-mounted lens according to claim 1, wherein: The vehicle-mounted lens further includes an air pump, which is disposed on the mounting bracket, electrically connected to the wire, and is disposed corresponding to the protective cover.

10. The vehicle-mounted lens according to claim 1, wherein: A second protrusion is extended from the wall surface of the first through hole toward the center of the mounting bracket along the second direction, for engaging with the lens.

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