CN217486543U - Visual device and unmanned aerial vehicle - Google Patents

Abstract

The application relates to a vision device and an unmanned aerial vehicle. The vision device includes the casing, install in the camera lens of casing inner chamber, install in the installing support of casing, install in the lens of installing support and install in the piezoelectric patches that the installing support is used for driving the lens vibration, with the purpose of realization to lens dewatering and dust removal, it is unclear to avoid there being liquid and dust on the lens surface to lead to the camera lens formation of image, thereby the shooting effect of camera lens has been promoted, vision device's performance has been promoted, vision device's range of application has been increased simultaneously, and vision device's life has been prolonged. Be provided with the vision device that has dewatering dust removal function on the unmanned aerial vehicle, promoted unmanned aerial vehicle's working property.

Description

Visual device and unmanned aerial vehicle

Technical Field

The application relates to a lens dewatering dust removal technical field especially relates to a vision device and unmanned aerial vehicle.

Background

In order to protect the lens, a lens is generally coaxially arranged outside the lens, and in the using process, the contact between the lens and the outside causes liquid or dust on the lens, so that the shooting recognition effect of the lens is affected. Under the general condition, can plate one deck waterproof membrane on the lens, but the waterproof membrane life-span is short, and can't satisfy the dustproof demand of lens.

SUMMERY OF THE UTILITY MODEL

The application provides a vision device and unmanned aerial vehicle, this vision device can remove water and remove dust to the lens, and long service life.

The first aspect of the present application provides a vision device, which includes a housing, a lens mounted in an inner cavity of the housing, a mounting bracket mounted on the housing, a lens mounted on the mounting bracket, and a piezoelectric plate mounted on the mounting bracket.

In the application, the piezoelectric sheet drives the lens to vibrate, so that water and dust can be removed from the lens at the same time, and the situation that the imaging of the lens is not clear due to the existence of liquid and dust on the surface of the lens is avoided, so that the shooting effect of the lens is improved, and the use performance of a visual device is improved; meanwhile, liquid and dust on the surface of the lens are removed through vibration of the lens, so that the working scenes of the visual device are more, and the application range of the visual device is enlarged; in addition, the water and dust removal can be realized through the small-amplitude vibration of the lens, so that the use strength of the visual device is higher, and the visual device has longer service life.

In one possible design, the mounting bracket comprises a first bracket, the first bracket is fixedly connected with the shell, and the lens and the piezoelectric sheet are both mounted on the first bracket;

the piezoelectric piece can drive the lens to vibrate through the first support.

In one possible design, the first bracket is provided with a first mounting hole, a side wall of the first mounting hole is provided with a first mounting groove, and the lens is at least partially positioned in the first mounting groove.

In one possible design, the vision device further includes a first seal disposed between the first bracket and the housing.

In one possible design, at least one side wall of the first sealing element is provided with a groove.

In one possible design, the mounting bracket comprises a first bracket and a second bracket, the first bracket is fixedly connected with the shell, and the second bracket is fixedly connected with the first bracket;

the lens and the piezoelectric sheet are both arranged on the second bracket.

In one possible design, the second bracket is provided with a second mounting hole, the side wall of the second mounting hole is provided with a second mounting groove, and the piezoelectric sheet covers the second mounting groove;

along the axial of camera lens, one side and the second mounting groove butt of lens, the opposite side and the piezoelectric patches butt of lens.

In one possible design, the piezoelectric patch is annular, surrounding the lens;

the section radius of the inner circle of the piezoelectric patch is larger than that of the lens.

In one possible design, the vision device further includes a second seal disposed between the second bracket and the first bracket.

In one possible design, at least one side wall of the second seal is provided with a groove.

This application second aspect provides an unmanned aerial vehicle, includes:

a body;

the visual device of any one of the above claims, wherein the visual device is mounted to the body.

In this application, vision device possesses dewatering dust removal function simultaneously, and difficult emergence is damaged, long service life to unmanned aerial vehicle's working property has been promoted.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

FIG. 1 is a partial schematic view of a visual device provided herein in one embodiment;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of the first bracket of FIG. 2;

FIG. 4 is a partial schematic view of a visual device provided herein in another embodiment;

FIG. 5 is an exploded view of FIG. 4;

fig. 6 is a schematic structural view of the second bracket in fig. 4.

FIG. 7 is a cross-sectional view of the first seal of FIG. 2;

FIG. 8 is an enlarged view of portion I of FIG. 7;

reference numerals:

1-a shell;

11-upper shell;

12-a lower shell;

2-a lens;

3-a lens;

4-electric pressing sheet;

5-a first scaffold;

51-a first mounting hole;

52-a first mounting groove;

6-a second bracket;

61-a second mounting hole;

62-a second mounting groove;

63-a wiring groove;

7-a first seal;

8-a second seal;

9-groove.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Detailed Description

For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be noted that the directional terms such as "upper", "lower", "left", "right", etc. described in the embodiments of the present application are described in the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element through intervening elements.

The first aspect of the embodiment of the application provides an unmanned aerial vehicle, and this unmanned aerial vehicle includes body and vision device, and vision device installs in the body. The vision device is used for unmanned aerial vehicle's shooting or image recognition etc. because some of vision device exposes in external environment for a long time, leads to the vision device to need to possess the function that the dewatering removed dust to guarantee unmanned aerial vehicle's shooting effect and recognition efficiency. In the prior art, the visual device is provided with the waterproof membrane, but the waterproof membrane has short service life and does not have a dust removal function. And the vision device that this application provided possesses dewatering dust removal function simultaneously, and is difficult for taking place to damage, long service life to unmanned aerial vehicle's working property has been promoted.

Specifically, as shown in the figures, the visual device provided by the embodiment of the present application includes: the lens driving device comprises a shell 1, a lens 2 arranged in an inner cavity of the shell 1, a mounting bracket arranged on the shell 1 and used for protecting the lens 2, a lens 3 arranged on the mounting bracket and a piezoelectric sheet 4 arranged on the mounting bracket, wherein the piezoelectric sheet 4 is used for driving the lens 3 to vibrate.

In this embodiment, along the thickness direction of piezoelectric patch 4, piezoelectric patch 4 has positive pole and negative pole that relative setting, and positive pole and negative pole are connected with the power electricity respectively, and when the power output alternating current, exert alternating signal on the positive pole of piezoelectric patch 4 and the negative pole for piezoelectric patch 4 is along the dimensional change (for example extension) of thickness direction, and brings radial dimensional change (reduce this moment), thereby makes piezoelectric patch 4 produce the vibration along piezoelectric patch 4 thickness direction, and drives lens 3 vibration, makes liquid and dust on the lens 3 drop. Therefore, the piezoelectric sheet 4 drives the lens 3 to vibrate, so that water and dust can be removed from the lens 3 at the same time, and the situation that the imaging of the lens 2 is not clear due to the existence of liquid and dust on the surface of the lens 3 is avoided, so that the shooting effect of the lens 2 is improved, and the use performance of the visual device is improved; meanwhile, liquid and dust on the surface of the lens 3 are removed through the vibration of the lens 3, so that the working scenes of the visual device are more, and the application range of the visual device is enlarged; in addition, can realize the dewatering and remove dust through the small amplitude vibration of lens 3 for the use intensity of vision device is higher, thereby makes the vision device have longer life.

The vibration frequency of the piezoelectric sheet 4 is the same as the alternating current signal, and the vibration amplitude is positively correlated with the voltage between the positive electrode and the negative electrode.

In a possible embodiment, the polarized piezoelectric sheet 4 (ceramic sheet) is attached to a copper electrode on one side and plated with silver on the other side. When an alternating current signal is applied to the silver-plated electrode and the copper electrode, the ceramic sheet generates vibration along axial output displacement, the frequency of the vibration is the same as that of the alternating current signal, and the amplitude of the vibration is positively correlated with the voltage between the two electrodes. The dimensional change (e.g., elongation) of the ceramic sheet in the axial direction causes a radial dimensional change (which is reduced), and thus causes bending of the copper electrode, which, when the copper electrode is brought into contact with the excited object, causes a structural surface stress change and deformation of the excited object, thereby generating an excitation effect.

In addition, as shown in fig. 1 and fig. 2, the housing 1 includes an upper shell 11 and a lower shell 12, the upper shell 11, the lower shell 12 and the mounting bracket enclose a containing cavity, and the lens 2, the lens 3 and the piezoelectric sheet 4 are all mounted in the containing cavity. The housing 1 is provided with the upper shell 11 and the lower shell 12, so that the processing of the housing 1 can be facilitated, and the mounting and dismounting of internal parts of the housing 1 can be facilitated.

In one embodiment, as shown in fig. 1 and 2, the mounting bracket comprises a first bracket 5, the first bracket 5 is fixedly connected with the housing 1, and the lens 3 and the piezoelectric sheet 4 are both mounted on the first bracket 5; the piezoelectric patch 4 can drive the lens 3 to vibrate through the first support 5. In this embodiment, the piezoelectric patch 4 and the first support 5 are bonded by an epoxy glue (for example only) to reduce the space required for installing the piezoelectric patch 4.

In this embodiment, the lens 3 and the piezoelectric plate 4 are respectively mounted on the first bracket 5, and the piezoelectric plate 4 can transmit its vibration to the lens 3 through the first bracket 5, so as to achieve the purpose of removing water and dust from the lens 3. Piezoelectric patches 4 drive lenses 3 to vibrate through first support 5, and when the quantity of lens 2 is a plurality of, a piezoelectric patch 4 can drive a plurality of lenses 3 to vibrate simultaneously, thereby reducing the quantity of piezoelectric patches 4 required by the vision device, reducing the space required by the installation of piezoelectric patches 4, further reducing the size of the vision device, and reducing the production cost of the vision device. The number of the piezoelectric sheets 4 is not particularly limited in this application.

Specifically, as shown in fig. 3, the first bracket 5 is provided with a first mounting hole 51, a side wall of the first mounting hole 51 is provided with a first mounting groove 52, and at least a portion of the lens 3 is located in the first mounting groove 52.

In this embodiment, the lens 3 is mounted on the first bracket 5 through the first mounting groove 52, which simplifies the connection manner between the lens 3 and the first bracket 5, and reduces the space required for mounting the lens 3, thereby further reducing the size of the visual device. First support 5 is provided with first mounting hole 51, and lens 2 can see through lens 3 and first mounting hole 51 and shoot the outside image of vision device, has avoided lens 3 and lens 2 to be sheltered from by first support 5 to lens 2 has been guaranteed to normally work.

Further, as shown in fig. 1 and 2, the visual device further includes a first sealing member 7, and the first sealing member 7 is disposed between the first bracket 5 and the housing 1.

In this embodiment, be provided with first sealing member 7 between first support 5 and casing 1, when piezoelectric patch 4 drove first support 5 vibration, first sealing member 7 can avoid the vibration transmission of first support 5 to casing 1 and lead to casing 1 internals to receive the interference to promote the job stabilization nature of casing 1 internals, and avoided casing 1 internals to receive casing 1 vibration influence and take place to damage, thereby prolonged casing 1 internals's life.

In another embodiment, as shown in fig. 4 and 5, the mounting bracket comprises a first bracket 5 and a second bracket 6, the first bracket 5 is fixedly connected with the housing 1, and the second bracket 6 is fixedly connected with the first bracket 5; both the mirror plate 3 and the piezo-electric strip 4 are mounted to a second support 6. In this embodiment, the piezoelectric patch 4 and the second support 6 are bonded by an epoxy glue (for example only) to reduce the space required for installing the piezoelectric patch 4.

In the present embodiment, the piezoelectric sheet 4 drives the lens 3 to vibrate in two ways, the first way is: the piezoelectric sheet 4 can transmit the vibration of the piezoelectric sheet to the lens 3 through the second bracket 6, so that the lens 3 vibrates, and the aim of removing water and dust from the lens 3 is fulfilled; the second mode is as follows: piezoelectric patch 4 can directly transmit the vibration of self to lens 3 to realize the purpose to lens 3 dewatering and dust removal. Therefore, the lens 3 and the piezoelectric patch 4 are both mounted on the second bracket 6, the second bracket 6 is fixedly connected with the first bracket 5, and the first bracket 5 is fixedly connected with the casing 1, so that the manner in which the piezoelectric patch 4 drives the lens 3 to vibrate can be increased, and the flexibility of setting the piezoelectric patch 4 can be increased. Simultaneously, vision device can be provided with a plurality of second supports 6, and in the vision device use, the user can select the 4 vibrations of piezoelectric patches on one or more second supports 6 according to the demand to the selection removes water and removes dust to different lens 3, has avoided piezoelectric patches 4 to drive all lens 3 vibrations, makes the unnecessary vibration number of times of lens 3 reduce, thereby has prolonged the life of lens 3, and has promoted vision device's performance.

Specifically, as shown in fig. 6, the second bracket 6 is provided with a second mounting hole 61, a side wall of the second mounting hole 61 is provided with a second mounting groove 62, and the piezoelectric sheet 4 covers the second mounting groove 62; in one embodiment, the piezoelectric sheet 4 is not in contact with the lens 3; in another embodiment, one side of the lens 3 abuts against the second mounting groove 62 and the other side of the lens 3 abuts against the piezoelectric sheet 4 along the axial direction of the lens 2.

In the present application, the lens 3 is mounted on the second bracket 6 through the second mounting groove 62, which simplifies the connection manner between the lens 3 and the second bracket 6, and reduces the space required for mounting the lens 3, thereby further reducing the size of the visual device. In one embodiment, the piezoelectric patch 4 is not in contact with the lens 3, that is, the piezoelectric patch 4 drives the lens 3 to vibrate through the second support 6, so that the piezoelectric patch 4 can simultaneously drive a plurality of lenses 3 mounted on the same second support 6 to simultaneously vibrate, thereby reducing the space required for mounting the piezoelectric patch 4 and further reducing the size of the second support 6; in another embodiment, the piezoelectric plate 4 is in contact with the lens 3, that is, the piezoelectric plate 4 can directly drive the lens 3 to vibrate, so as to improve the sensitivity of the lens 3 to vibrate, and further improve the water and dust removing effect of the piezoelectric plate 4 on the lens 3.

As shown in fig. 6, a wiring groove 63 is provided on the second bracket 6 to facilitate the arrangement and installation of a connection line between the piezoelectric sheet 4 and the power supply, thereby simplifying the structure of the visual device.

More specifically, as shown in fig. 5, piezoelectric sheet 4 is ring-shaped, and piezoelectric sheet 4 is ring-shaped, that is, piezoelectric sheet 4 adopts a typical piezoelectric ring structure, and both end faces of the polarized ceramic ring are plated with silver electrodes. When an alternating current signal is applied between the two silver-plated electrodes, the ceramic sheet generates vibration along the axial output displacement, the frequency of the vibration is the same as that of the alternating current signal, and the amplitude of the vibration is positively correlated with the voltage between the two electrodes. In this embodiment, the piezoelectric ring surrounds the lens 3; and the section radius of the inner circle of the piezoelectric ring is larger than that of the lens 2.

In this embodiment, the annular piezoelectric sheet 4 can be directly sleeved on the outer side of the lens 3, and after the piezoelectric sheet 4 is fixedly connected with the second support 6, the lens 3 is extruded in front of the second support 6 and the piezoelectric sheet 4, so as to mount the lens 3; meanwhile, the section radius of the inner circle of the annular piezoelectric plate 4 is larger than that of the lens 2, so that the piezoelectric plate 4 can be prevented from shielding the lens 2. Therefore, the piezoelectric plate 4 is arranged in a ring shape, so that the normal operation of the lens 2 is ensured, meanwhile, the connection mode of the piezoelectric plate 4, the lens 3 and the second bracket 6 can be simplified, and the structure of the visual device is further simplified.

Specifically, as shown in fig. 5, the vision device further includes a second sealing member 8, and the second sealing member 8 is disposed between the second bracket 6 and the first bracket 5.

In this embodiment, be provided with second sealing member 8 between second support 6 and first support 5, when piezoelectric patch 4 drove the vibration of lens 3, second sealing member 8 can avoid the vibration of second support 6 to transmit to casing 1 through first support 5 and lead to casing 1 internals to receive the interference to further promoted casing 1 internals's job stabilization nature, and further prolonged casing 1 internals's life.

The type of the first sealing member 7 includes, but is not limited to, an O-ring, an irregular sealing ring, etc., and the shape of the irregular sealing ring is related to the shape of the first supporter 5. When the first sealing member 7 is an irregular sealing ring, as shown in fig. 7 and 8, a groove 9 is formed on at least one side wall of the first sealing member 7, so that the cross-sectional shape of the first sealing member 7 in the thickness direction is an irregular pattern, and the flexible structure provided by the irregular sealing ring can provide better vibration damping for the elastic damping system. In addition, the cross section of the first sealing member 7 in the thickness direction may be a regular pattern such as a circular pattern, a rectangular pattern, a trapezoidal pattern, or another irregular shape, and the cross sectional shape of the first sealing member 7 is not particularly limited in the present application.

Likewise, the type of the second sealing member 8 includes, but is not limited to, an O-ring, an irregular ring, etc., the shape of which is related to the shape of the second bracket 6. When the second sealing element 8 is an irregular sealing ring, at least one side wall of the second sealing element 8 is provided with a groove 9, so that the cross section of the second sealing element 8 along the thickness direction is in an irregular figure, and a flexible structure provided by the irregular sealing ring can provide better vibration reduction for an elastic damping system. In addition, the cross section of the second sealing member 8 in the thickness direction may also be a regular pattern such as a circular pattern, a rectangular pattern, a trapezoidal pattern, or another irregular shape, and the cross sectional shape of the second sealing member 8 is not particularly limited in the present application.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (11)

1. A visual device, characterized in that the visual device comprises:

a housing (1);

a mounting bracket mounted to the housing (1);

the lens (2), the said lens (2) is mounted to the cavity of the said body (1);

a lens (3), said lens (3) mounted to said mounting bracket;

the piezoelectric patch (4) is mounted on the mounting bracket.

2. The visual device according to claim 1, wherein said mounting bracket comprises a first bracket (5), said first bracket (5) being fixedly connected to said housing (1), said lens (3) and said piezoelectric patch (4) being mounted to said first bracket (5);

the piezoelectric sheet (4) can drive the lens (3) to vibrate through the first bracket (5).

3. The visual device according to claim 2, characterized in that said first bracket (5) is provided with a first mounting hole (51), the side wall of said first mounting hole (51) being provided with a first mounting groove (52), said lens (3) being at least partially located within said first mounting groove (52).

4. The visual device according to claim 2, characterized in that it further comprises a first seal (7), said first seal (7) being arranged between said first bracket (5) and said casing (1).

5. A visual device according to claim 4, characterised in that at least one side wall of the first seal (7) is provided with a groove (9).

6. The visual device according to claim 1, characterized in that said mounting bracket comprises a first bracket (5) and a second bracket (6), said first bracket (5) being fixedly connected with said casing (1), said second bracket (6) being fixedly connected with said first bracket (5);

the lens (3) and the piezoelectric sheet (4) are both mounted on the second bracket (6).

7. The visual device according to claim 6, wherein the second bracket (6) is provided with a second mounting hole (61), a side wall of the second mounting hole (61) is provided with a second mounting groove (62), and the piezoelectric sheet (4) covers the second mounting groove (62);

one side of the lens (3) abuts against the second mounting groove (62) along the axial direction of the lens (2), and the other side of the lens (3) abuts against the piezoelectric sheet (4).

8. Visual apparatus according to claim 6, characterised in that said piezo-electric sheet (4) is ring-shaped, said piezo-electric sheet (4) surrounding said lens (3);

the section radius of the inner circle of the piezoelectric sheet (4) is larger than that of the lens (2).

9. The visual device according to claim 6, characterized in that the visual device further comprises a second seal (8), said second seal (8) being arranged between said second bracket (6) and said first bracket (5).

10. A visual arrangement according to claim 9, characterised in that at least one side wall of the second seal (8) is provided with a groove (9).

11. A drone, characterized in that it comprises:

a body;

the visual device of any one of claims 1 to 10, mounted to said body.

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