CN114157786A

CN114157786A - Video camera

Info

Publication number: CN114157786A
Application number: CN202111437645.8A
Authority: CN
Inventors: 朱帅帅; 田伟
Original assignee: Hangzhou Hikvision Digital Technology Co Ltd
Current assignee: Hangzhou Hikvision Digital Technology Co Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-03-08
Anticipated expiration: 2041-11-29
Also published as: CN114157786B

Abstract

The present application provides a camera. The camera includes: the camera comprises a camera shell, a lens component and a loudspeaker component, wherein the camera shell is provided with an accommodating cavity and a sound venting hole; the lens assembly is accommodated in the accommodating cavity; the speaker subassembly, accept in same accepting the chamber with the camera lens subassembly, the speaker subassembly includes speaker shell and speaker, and the speaker shell is equipped with the speaker chamber and goes out the sound hole, goes out sound hole intercommunication speaker chamber and lets out the sound hole, and the speaker is acceptd in the speaker chamber, including the vibrating diaphragm, the vibrating diaphragm is towards letting out the sound hole, and is located and let out the space that the sound hole is linked together, the speaker shell with camera housing sealing joint, sealing joint face surrounds let out the sound hole with go out the sound hole. The application provides a camera, camera lens subassembly and speaker subassembly are with the chamber setting, and avoided speaker subassembly's vibrating diaphragm to appear inside and outside pressure differential, have ensured the normal use of speaker.

Description

Video camera

Technical Field

The present application relates to electronic devices, and more particularly, to a camera.

Background

For satisfying different use scenes, part camera is equipped with the speaker, current speaker snap-on is inside the camera cavity, the inside and outside incommunity of speaker vibrating diaphragm, on the other hand is waterproof in order to make the electronic component of camera, the camera shell is often the leakproofness good, lead to camera continuous operation a period after, along with the inside temperature of camera can rise, the inside atmospheric pressure of camera increases, lead to there being pressure differential inside and outside the speaker vibrating diaphragm, the vibrating diaphragm vibration receives the influence, thereby make the unable normal sound that makes of speaker.

Disclosure of Invention

The application provides a camera can avoid speaker vibrating diaphragm to appear inside and outside pressure differential, ensures the normal use of speaker.

The application provides a camera mounting assembly, includes: the camera shell is provided with an accommodating cavity and a sound venting hole; the lens assembly is accommodated in the accommodating cavity;

the speaker subassembly, with the camera lens subassembly accept in same accept the chamber, the speaker subassembly includes speaker shell and speaker, the speaker shell is equipped with the speaker chamber and goes out the sound hole, go out the sound hole intercommunication the speaker chamber with let out the sound hole, the speaker accept in the speaker chamber, including the vibrating diaphragm, the vibrating diaphragm towards let out the sound hole, and be located with let out in the space that the sound hole is linked together, the speaker shell with camera housing sealing joint, sealing joint surrounds let out the sound hole with go out the sound hole.

The camera of some embodiments of this application, owing to be equipped with out the sound hole and communicate the speaker chamber with let out the sound hole, the normal use of speaker is ensured to the pressure differential can not appear inside and outside the speaker vibrating diaphragm.

Further, the camera housing includes the first side wall that is formed with the sound discharge hole, the inboard surface of first side wall is formed with the protrusion and encircles the support boss that the sound discharge hole set up, the speaker housing with support boss sealing joint, the speaker housing is including being formed with the second side wall of sound discharge hole, first side wall with the second side wall is relative in respective thickness direction, the speaker housing with the composition surface of support boss forms sealed composition surface.

Further, the second side wall is provided with a diaphragm hole, and the diaphragm is exposed at the diaphragm hole and is opposite to the sound venting hole.

Further, the loudspeaker assembly further comprises a waterproof breathable film which is connected to the outer edge of the sound outlet hole in a sealing mode, and the waterproof breathable film is surrounded by the sealing joint face.

Furthermore, the inner surface of the first side wall is further provided with a fixing part and a positioning part which protrude in the same direction as the supporting boss, the loudspeaker shell further comprises a fixing matching part matched with the fixing part and a positioning matching part matched with the positioning part, the positioning part is in positioning matching with the positioning matching part, and the fixing part is fixedly connected with the fixing matching part.

Furthermore, the fixing parts are provided with a plurality of fixing parts, at least comprise a first fixing part and a second fixing part, and the first fixing part and the second fixing part are arranged at the periphery of the supporting boss at an interval of 180 degrees.

Furthermore, the positioning parts are provided with a plurality of positioning parts, at least comprise a first positioning part and a second positioning part, and the first positioning part and the second positioning part are arranged at an interval of 180 degrees on the periphery of the supporting boss.

Furthermore, the support boss is an oval boss, and the first fixing portion and the second fixing portion are oppositely arranged along the long axis direction of the oval boss.

Further, location portion includes the reference column, the fixed part includes the spliced pole, camera housing includes the outside convex fixed ear of follow surface, location cooperation portion is including forming in the locating hole of fixed ear, the reference column is inserted and is arranged in location fit in the locating hole, fixed ear support in the spliced pole, with reference column fixed connection.

Further, one of the support boss and the speaker housing is provided with a sealing groove, the camera further comprises a sealing ring, the sealing ring is assembled in the sealing groove and clamped between the support boss and the speaker housing, and the sealing ring surrounds the sound outlet hole and the sound discharge hole.

Furthermore, the loudspeaker shell comprises a loudspeaker front shell and a loudspeaker rear shell which are arranged in a split mode and are in sealing joint, the loudspeaker front shell and the loudspeaker rear shell jointly enclose the loudspeaker cavity, the sound outlet hole is formed in the loudspeaker front shell, and the loudspeaker rear shell is provided with a wire outlet for the loudspeaker to be led out and a glue dispensing groove arranged around the wire outlet.

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

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.

FIG. 1 is an exploded isometric view of a camera housing and speaker assembly shown in an exemplary embodiment;

FIG. 2 is a cross-sectional view of the camera housing and speaker assembly shown in FIG. 1;

FIG. 3 is an enlarged partial view of the camera housing and speaker assembly of FIG. 2;

FIG. 4 is an enlarged partial view of the camera housing and speaker assembly of FIG. 3;

FIG. 5 is a top view of a camera housing shown in an exemplary embodiment;

FIG. 6 is a top view of a speaker front housing of a speaker assembly shown in an exemplary embodiment;

FIG. 7 is a schematic perspective view of a speaker assembly shown in an exemplary embodiment;

fig. 8 is a cross-sectional view of a speaker assembly shown in an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in 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 also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

Fig. 1 is an exploded perspective view of a camera housing 2 and speaker assembly 4, shown in an exemplary embodiment. The present application provides a camera 1 including: a camera housing 2, a lens assembly (not shown) and a speaker assembly 4. Referring to fig. 1, the camera housing 2 is provided with a receiving cavity 21 and a sound venting hole 22. The lens assembly and the speaker assembly 4 are accommodated in the accommodating cavity 21. The sound release hole 22 penetrates through one side wall of the camera housing 2 to communicate with the outside, and the sound emitted from the speaker unit 4 can be transmitted to the outside through the sound release hole 22.

Fig. 2 is a cross-sectional view of the camera housing 2 and speaker assembly 4; fig. 3 is an enlarged partial view of the camera housing 2 and speaker assembly 4 of fig. 2; fig. 4 is a partially enlarged view of the camera housing 2 and speaker assembly 4 shown in fig. 3. Referring to fig. 2, the speaker assembly 4 includes a speaker housing 41 and a speaker 42 disposed in the speaker housing 41, the speaker housing 41 is hermetically joined to the camera housing 2 in the receiving cavity 21, the sealing joint surface of the speaker housing 41 and the camera housing 2 surrounds the vent hole 22 to hermetically separate the receiving cavity 21 from the vent hole 22, the receiving cavity 21 is formed as a sealed cavity and is not communicated with the outside, and only the vent hole 22 is communicated with the outside.

The speaker housing 41 has a speaker chamber 43 and a sound outlet hole 44, the speaker 42 is accommodated in the speaker chamber 43 and includes a diaphragm 45, and the diaphragm 45 faces the sound outlet hole 22 and is located in a space communicated with the sound outlet hole 22. The sound outlet hole 44 communicates the speaker chamber 43 with the sound discharge hole 22, and the sound outlet hole 44 is surrounded by the sealing interface of the speaker housing 41 and the camera housing 2.

As can be seen from the above description, the lens assembly and the speaker assembly 4 are disposed in the same cavity, and there is no need to provide an independent cavity for the speaker assembly 4, so that the number of parts can be reduced, the mounting structure can be simplified, and the cost can be reduced. In addition, because the sealed joint surface of the speaker housing 41 and the camera housing 2 surrounds the sound venting hole 22 and the sound outlet hole 44, not only the accommodating cavity 21 is formed as a sealed cavity, but also the sound outlet hole 44 is communicated with the sound venting hole 22 and the speaker cavity 43, so that no pressure difference is generated between the inner side and the outer side of the vibrating diaphragm 45 and the outside atmosphere, the vibrating diaphragm 45 can normally make sound, and the speaker 42 can normally work.

Referring to fig. 3 to 4, in some embodiments, the camera housing 2 includes a first sidewall 51 formed with the vent hole 22, a support boss 53 protruding and disposed around the vent hole 22 is formed on an inner side surface of the first sidewall 51, the speaker housing 41 is hermetically engaged with the support boss 53, the speaker housing 41 includes a second sidewall 52 formed with the vent hole 44, the first sidewall 51 and the second sidewall 52 are opposite to each other in a thickness direction, and a sealing engagement surface is formed by an engagement surface 54 of the speaker housing 41 and the support boss 53 to surround the vent hole 44 and the vent hole 22. The support bosses 53 are arranged to leave a gap between the speaker 42 and the camera housing 2, which gap may form a front sound cavity in front of the diaphragm 45 to facilitate sound transmission. Further, the first side wall 51 and the second side wall 52 are opposed to each other, which facilitates communication between the sound discharge hole 22 and the sound discharge hole 44, and facilitates sealing engagement of the speaker housing 41 and the camera housing 2. The venting holes 22 may be a plurality of holes concentrated and uniformly distributed on the first sidewall 51. In order to further ensure the sealing performance of the sealing joint surface between the speaker housing 41 and the camera housing 2, in some embodiments, one of the support boss 53 and the speaker housing 41 is provided with a sealing groove 531, the camera 1 further includes a sealing ring 532, the sealing ring 532 is assembled in the sealing groove 531 and clamped between the support boss 53 and the speaker housing 41, and the sealing ring 532 surrounds the sound outlet hole 44 and the sound outlet hole 22 to enhance the sealing effect.

The speaker assembly 4 further includes a waterproof air-permeable membrane 441 hermetically connected to the outer edge of the sound outlet hole 44, the waterproof air-permeable membrane 441 can achieve waterproof and air-permeable at the sound outlet hole 44, and the sealing ring 532 should be enclosed outside the waterproof air-permeable membrane 441, that is, enclosed by a sealing joint surface. Due to the waterproof property of the waterproof breathable film 441, when water enters the sound outlet 22, the water does not flow into the speaker chamber 43 through the sound outlet 44 to damage the speaker 42. Due to the air permeability of the waterproof air-permeable film 441, the communication between the speaker cavity 43 and the external atmospheric pressure can be realized, the air pressures on the inner side and the outer side of the vibrating diaphragm 45 are equal, the normal use of the speaker 42 of the camera 1 is ensured, and on the other hand, the waterproof of the speaker 42 can be realized.

In some embodiments, the sealing ring 532 may have a cross-sectional structure similar to an "n" shape, the sealing ring 532 protrudes from the sealing groove 531 by a certain height, the sealing ring 532 has a certain interference amount with the supporting boss 53, and a certain interference amount is also provided between the sealing ring 532 and the sealing groove 531, so that the sealing ring 532 can be ensured to be stable after being installed, and is not easily touched by mistake.

In order to ensure that the diaphragm 45 can sound normally, the second side wall 52 is provided with a diaphragm hole 520, and the diaphragm 45 is exposed at the diaphragm hole 520 and is opposite to the vent hole 22. In this way, the sound generated after the vibration of the diaphragm 45 can be directly transmitted through the sound release hole 22, so as to shorten the propagation path of the sound.

Fig. 5 is a top view of the camera housing 2; fig. 6 is a top view of the speaker front cover 411 of the speaker assembly 4. Referring to fig. 5 to 6 in combination with fig. 1 to 2, in some embodiments, the speaker assembly 4 needs to be fixedly connected to the camera housing 2, the inner surface of the first sidewall 51 further forms a fixing portion 61 and a positioning portion 62 protruding in the same direction as the supporting boss 53, the speaker housing 41 further includes a fixing engagement portion 63 engaged with the fixing portion 61 and a positioning engagement portion 64 engaged with the positioning portion 62, the positioning portion 62 is in positioning engagement with the positioning engagement portion 64, and the fixing portion 61 is fixedly connected to the fixing engagement portion 63. In this way, the fixing portion 61 can ensure the fixed connection between the speaker assembly 4 and the camera housing 2, and the positioning portion 62 can play a role in accurately positioning the mounting position of the speaker assembly 4, thereby ensuring the normal use of the speaker assembly 4 of the camera 1 of the present application.

In some embodiments, the fixing portion 61 further comprises a fixing member 65, and the mounting step of the speaker assembly 4 to the camera housing 2 is: firstly, aligning the positioning part 62 with the positioning matching part 64, and precisely placing the loudspeaker assembly 4 on the camera shell 2 through the positioning action of the positioning part 62, wherein the fixing part 61 is aligned with the fixing matching part 63; secondly, the second side wall 52 of the speaker assembly 4 is pressed on the sealing ring 532, the fixing part 61 and the fixing matching part 63 are connected by the fixing part 65, the speaker front shell 411 and the sealing ring 532 form a front sound cavity 46 together with the camera shell 2, and the sound leakage hole 22, the sound outlet hole 44 and the waterproof breathable film 441 are positioned in the front sound cavity 46.

Referring to fig. 5, in some embodiments, the fixing portions 61 are provided in plural, and at least include a first fixing portion 611 and a second fixing portion 612, and the first fixing portion 611 and the second fixing portion 612 are disposed at an interval of 180 ° around the supporting boss 53. Thus, the first fixing portion 611 and the second fixing portion 612 are spaced apart from each other, and the connection stability is good. In some embodiments, the positioning portion 62 is provided in plural, and includes at least a first positioning portion 621 and a second positioning portion 622, and the first positioning portion 621 and the second positioning portion 622 are disposed at an interval of 180 ° on the periphery of the support boss 53. Thus, the first positioning portion 621 and the second positioning portion 622 are far apart from each other, and the positioning accuracy is good.

In this embodiment, the supporting boss 53 is an elliptical boss, and the first fixing portion 611 and the second fixing portion 612 are oppositely disposed along the long axis direction of the elliptical boss. The long axis distance is long, so that the distance between the first fixing part 611 and the second fixing part 612 can be further increased. The first positioning portion 621 and the second positioning portion 622 may be disposed opposite to each other along the long axis direction of the elliptical boss.

In some embodiments, the positions and the number of the fixing portions 61 and the positioning portions 62 may be selectively set according to the shapes of the camera housing 2 and the speaker housing 41. The fixing engagement portion 63 is disposed corresponding to the fixing portion 61, and the positioning engagement portion 64 is disposed corresponding to the positioning portion 62.

Referring to fig. 1, 5 to 6, in some embodiments, the positioning portion 62 includes a positioning post 623, the fixing portion 61 includes a connecting post 613, the camera housing 2 includes a fixing lug 633 protruding outward from the outer surface, the positioning matching portion 64 includes a positioning hole 643 formed in the fixing lug 633, the positioning post 623 is inserted into the positioning hole 643 for positioning matching, and the fixing lug 633 is supported on the connecting post 613 and is fixedly connected to the positioning post 623. The connection may be fixed, for example, by screws. In this manner, the speaker assembly 4 is firmly fixed to the camera housing 2. In the illustrated embodiment, the positioning post 623 and the connecting post 613 have a length of about half the height of the speaker assembly 4, i.e., the speaker housing 41 is fixed at a middle position, so that stable fixation can be achieved. In some embodiments, the relative heights of the connection post 613 and the sealing groove 531 are consistent with the relative heights of the fixing lug 633 and the second side wall 52 to ensure a good sealing effect after the speaker assembly 4 is installed. In other embodiments, the positioning portion 62 and the fixing portion 61 may have other structures, such as a snap, etc., so as to ensure that the speaker housing 41 is fixedly connected to the camera housing 2.

Fig. 7 is a perspective view of the speaker assembly 4; fig. 8 is a cross-sectional view of the speaker assembly 4. Referring to fig. 7 to 8, in some embodiments, the speaker housing 41 includes a speaker front shell 411 and a speaker rear shell 412 that are separately disposed and hermetically joined, the speaker front shell 411 and the speaker rear shell 412 together enclose a speaker cavity 43, and the sound outlet 44 is opened in the speaker front shell 411. The speaker 42 is installed by opening the speaker back case 412; second, the speaker 42 is put in; thirdly, closing the rear loudspeaker shell 412; and fourthly, the front loudspeaker shell 411 and the rear loudspeaker shell 412 are hermetically connected. As such, the speaker assembly 4 of the present application is simple to install and easy to maintain. In some embodiments, the speaker front shell 411 is further provided with a sealant groove 413 at a joint with the rear shell, and the speaker front shell 411 and the speaker rear shell 412 are sealed in a dispensing manner, that is, the sealant groove 413 is filled with glue, and after solidification, the speaker front shell 411 and the speaker rear shell 412 can perform a sealing function, and in other embodiments, the sealing manner may be a rubber ring or other manners. In this way, the sealing performance of the speaker housing 41 can be ensured on the premise that the speaker 42 is easy to mount, and in addition, the speaker back case 412 can play a certain role in protecting and fixing the speaker 42.

In some embodiments, since the speaker 42 is provided with the speaker connecting wire 414 to connect with other components of the camera 1, the speaker back case 412 is provided with an outlet 4121 for the speaker 42 to go out and a dispensing groove 4122 around the outlet 4121. Thus, the speaker connecting wire 414 passes through the speaker housing 41 from the outlet 4121, and the glue groove 4122 is filled with glue to ensure the sealing performance at the outlet 4121. In other embodiments, if the speaker 42 is a wireless speaker 42, the outlet 4121 may not be provided and the speaker back housing 412 is a complete structure.

After the camera 1 is installed, the camera housing 2, the sealing ring 532, the speaker front case 411, and the speaker back case 412 make the lens assembly in a completely sealed environment, and in addition, a dispensing groove 4122 is designed at the position of the outlet 4121 of the speaker back case 412. The sealing glue groove 413 is designed at the parting position of the front shell and the rear shell of the loudspeaker 42, and the front shell and the rear shell are filled with sealing glue, so that the camera 1 accommodating cavity 21 has good sealing performance, the air pressure in the camera 1 is ensured not to influence the loudspeaker 42, and the integral protection grade of the camera 1 can reach more than IP 66.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. A camera, comprising:

the camera shell is provided with an accommodating cavity and a sound venting hole;

the lens assembly is accommodated in the accommodating cavity;

2. The camera according to claim 1, wherein the camera housing includes a first side wall formed with the sound discharge hole, an inner side surface of the first side wall is formed with a support boss protruding and provided around the sound discharge hole, the speaker housing is sealingly engaged with the support boss, the speaker housing includes a second side wall formed with the sound discharge hole, the first side wall and the second side wall are opposed in respective thickness directions, and the speaker housing and the support boss engagement surface form the sealing engagement surface.

3. The camera of claim 2, wherein the second sidewall has a diaphragm aperture, the diaphragm being exposed at the diaphragm aperture and facing the vent.

4. The camera of claim 2, wherein the speaker assembly further comprises a waterproof, breathable membrane sealingly attached to the outer rim of the sound outlet port, the waterproof, breathable membrane being surrounded by the sealing interface.

5. The camera as claimed in claim 2, wherein the inner surface of the first sidewall further forms a fixing portion and a positioning portion protruding in the same direction as the supporting boss, the speaker housing further includes a fixing engagement portion engaged with the fixing portion and a positioning engagement portion engaged with the positioning portion, the positioning portion is in positioning engagement with the positioning engagement portion, and the fixing portion is fixedly connected with the fixing engagement portion.

6. The camera of claim 5, wherein said plurality of fastening portions includes at least a first fastening portion and a second fastening portion, said first fastening portion and said second fastening portion being disposed 180 ° apart around the periphery of said support boss; and/or

The positioning parts are provided with a plurality of positioning parts, at least comprise a first positioning part and a second positioning part, and the first positioning part and the second positioning part are arranged at an interval of 180 degrees on the periphery of the supporting boss.

7. The camera as in claim 6, wherein the support boss is an elliptical boss, and the first and second fixing portions are oppositely disposed along a major axis of the elliptical boss.

8. The camera as claimed in claim 5, wherein the positioning portion includes a positioning post, the fixing portion includes a connecting post, the camera housing includes a fixing lug protruding outward from an outer surface, the positioning engagement portion includes a positioning hole formed in the fixing lug, the positioning post is inserted into the positioning hole for positioning engagement, and the fixing lug is supported by the connecting post and is fixedly connected to the positioning post.

9. The camera of claim 2, wherein one of the support boss and the speaker housing is provided with a sealing groove, the camera further comprising a sealing ring assembled in the sealing groove and clamped between the support boss and the speaker housing, the sealing ring surrounding the sound outlet hole and the sound outlet hole.

10. The camera of claim 1, wherein the speaker housing comprises a speaker front shell and a speaker rear shell which are separately arranged and hermetically joined, the speaker front shell and the speaker rear shell together enclose the speaker cavity, the sound outlet hole is opened in the speaker front shell, and the speaker rear shell is provided with an outlet for the speaker to go out and an adhesive dispensing groove arranged around the outlet.