CN212969793U

CN212969793U - Video camera

Info

Publication number: CN212969793U
Application number: CN202021309215.9U
Authority: CN
Inventors: 唐鹏程; 郭迎弟; 李信海
Original assignee: Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Current assignee: Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-04-13
Anticipated expiration: 2030-07-07

Abstract

The application provides a camera, including preceding shell and backshell, be equipped with the radiator in the backshell, the surface of radiator with the internal surface of backshell is laminated mutually, be equipped with first mounting panel in the radiator, be equipped with first circuit board on the first mounting panel, be equipped with the subassembly of making a video recording on the first circuit board at least, the radiator is the metalwork. The surface of radiator and the internal surface of backshell are laminated mutually to make first circuit board set up on first mounting panel, the space clearance between first circuit board and the backshell is few like this, and the heat conduction efficiency of the radiator that belongs to the metalwork is better than the air heat conductivity, consequently, can reduce contact thermal resistance through the radiator, so that the heat that produces on the first circuit board conducts to the backshell fast through the radiator on, then in giving off to external environment through the backshell, for utilizing air heat conduction among the prior art, have the advantage that the heat conduction effect is good.

Description

Video camera

Technical Field

The application belongs to the technical field of video safety monitoring, and particularly relates to a camera.

Background

With the development of social economy and the improvement of living standard of people, people pay more and more attention to the safety of people and property, which promotes the rapid development and growth of the video safety monitoring market, and the application of the camera is visible everywhere, such as an indoor camera, an outdoor camera, a vehicle-mounted camera and the like.

With the increase of market competitiveness and diversification of user experience angles, cameras gradually tend to be miniaturized, low in cost and multifunctional. The camera is miniaturized, so that the camera cannot be internally cooled by parts such as a fan, and the number of circuit boards and chips required by the camera is increased due to the increasing functions of the camera, so that the heat production quantity in the camera is increased. Because the circuit board is generally directly fixed in the shell of the camera by means of screws or clamping and the like at present, the contact part between the circuit board and the shell is few and has a plurality of gaps, heat generated by the circuit board is mainly transferred to the shell through air and then transferred to the external environment through the shell, and the heat dissipation mode has high contact thermal resistance. When the camera is used outdoors, the camera needs to have a good waterproof function, the camera cannot adopt a fan and is provided with a heat dissipation hole and the like to dissipate heat, and the shell is in a sealing state, so that no air flows in the shell, and the camera has a poor heat dissipation effect of heat conduction through air.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a camera to solve among the prior art outdoor camera because there is not the air current in the casing and lead to the not good technical problem of radiating effect.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the camera comprises a front shell and a rear shell, wherein a radiator is arranged in the rear shell, the outer surface of the radiator is attached to the inner surface of the rear shell, a first mounting plate is arranged in the radiator, a first circuit board is arranged on the first mounting plate, at least one camera shooting assembly is arranged on the first circuit board, and the radiator is a metal piece.

In one embodiment, a second mounting plate is arranged in the heat sink and spaced from the first mounting plate, a second circuit board electrically connected to the first circuit board is arranged on the second mounting plate, a wireless communication module is arranged on the second circuit board, a first notch is formed in the side wall of the heat sink between the first mounting plate and the second mounting plate, and the first notch enables the wireless communication module to be used for receiving and transmitting wireless signals.

In one embodiment, a second notch is formed in a side wall of the heat dissipation body between the first mounting plate and the front shell, a heat dissipation cover is arranged on the inner side of the front shell at the second notch, the heat dissipation cover is a metal piece, and a light source assembly which emits light to the outside of the front shell is arranged on the heat dissipation cover.

In one embodiment, the heat dissipation cover comprises a flat plate and an arc-shaped plate formed by bending and extending the edge of the flat plate, the light source assembly is arranged on one side surface of the flat plate far away from the arc-shaped plate, and the arc-shaped plate surrounds part of the first circuit board.

In one embodiment, a third thermal pad is disposed between the light source assembly and the plate, and a fourth thermal pad is disposed between the second circuit board and the second mounting plate.

In one embodiment, a heat conducting member is disposed between the first circuit board and the first mounting plate, one side of the heat conducting member abuts against the first circuit board, and the other side of the heat conducting member abuts against the first mounting plate.

In one embodiment, the thermal conductive member includes a first thermal pad bonded to the first circuit board and a second thermal pad bonded to the first mounting board, with a shield disposed between the first thermal pad and the second thermal pad.

In one embodiment, an audio component and a memory card plug-in component are convexly disposed on the rear shell toward the inner side of the rear shell, and a third notch for accommodating the audio component and the memory card plug-in component is disposed on a side wall of the heat sink away from the first notch.

In one embodiment, the surfaces of the heat dissipation body and the heat dissipation cover are both provided with a first heat radiation layer.

In one embodiment, the front shell and the rear shell are both plastic parts, and the outer surface of the rear shell is provided with a second heat radiation layer.

The application provides a camera's beneficial effect lies in:

the outer surface of the radiator is attached to the inner surface of the rear shell, the first circuit board is arranged on the first mounting plate, so that the space gap between the first circuit board and the rear shell is small, the heat conduction efficiency of the radiator belonging to the metal piece is better than that of air, therefore, the contact thermal resistance can be reduced through the radiator, heat generated on the first circuit board is quickly conducted to the rear shell through the radiator, then the heat is dissipated to the external environment through the rear shell, and compared with the prior art, the radiator has the advantage of good heat conduction effect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic overall structural diagram of a camera provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a camera provided in the embodiment of the present application, with a rear case omitted;

fig. 3 is a schematic structural diagram of a camera provided in an embodiment of the present disclosure, with a front shell, a rear shell, a light source assembly, and a heat dissipation cover omitted;

fig. 4 is an exploded view of a camera provided in an embodiment of the present application;

fig. 5 is a schematic perspective view of a heat dissipation body in a camera according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a heat dissipation body in a camera according to an embodiment of the present disclosure;

fig. 7 is a schematic diagram of an oblique top structure of a rear shell in a video camera according to an embodiment of the present application;

fig. 8 is a schematic bottom view of a heat dissipation cover in a video camera according to an embodiment of the present disclosure.

Wherein, in the figures, the respective reference numerals:

1. a front housing; 2. a rear housing; 21. an audio component; 22. a memory card plug-in component; 23. reinforcing ribs; 24. mounting a column; 3. a heat sink; 31. a first mounting plate; 32. a first notch; 33. a second mounting plate; 34. a second notch; 35. a third notch; 36. a groove; 37. inserting holes; 4. a first circuit board; 41. a camera assembly; 42. an inductive component; 5. a second circuit board; 6. a heat dissipation cover; 61. a flat plate; 62. an arc-shaped plate; 7. a light source assembly; 8. a heat conductive member; 81. a first thermally conductive pad; 82. a second thermally conductive pad; 83. a shield case; 84. a third thermally conductive pad; 85. a fourth thermal pad.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1 to 3, a description will now be given of a video camera provided in an embodiment of the present application. In the embodiment of the present application, the description is made on the case where the camera is used outdoors, and therefore the camera needs to have good sealing and waterproofing properties. Of course, the camera may not require a waterproof seal when used indoors.

As shown in fig. 1 to 3, in the present embodiment, the camera includes a front case 1 and a rear case 2, the front case 1 and the rear case 2 are hermetically assembled, and a mounting cavity is formed inside the front case 1 and the rear case 2 after the assembly.

As shown in fig. 1 to 3, in the present embodiment, a heat radiator 3 is disposed in the mounting cavity of the rear case 2, and an outer surface of the heat radiator 3 is attached to an inner surface of the rear case 2, so as to reduce thermal contact resistance. In the present embodiment, the heat dissipation member 3 is a metal member, preferably an aluminum alloy member, which is beneficial to improve the heat conduction efficiency. In this embodiment, the overall shape of the heat sink 3 is matched with the shape of the inner side of the rear case 2, so that it is ensured that the heat sink 3 and the rear case 2 have a large enough contact area, and the heat sink 3 has a large enough heat dissipation area, so that heat can be quickly conducted and radiated. In the present embodiment, the rear case 2 has a cylindrical structure having an opening at one end, and the heat radiator 3 has a cylindrical structure having an opening at one end toward the front case 1, and specifically, the shape of the heat radiator 3 is changed by adapting the shape of the rear case 2.

As shown in fig. 2 to 4, a first mounting plate 31 is disposed in the heat dissipation body 3, a first circuit board 4 is disposed on the first mounting plate 31, the first circuit board 4 is a main circuit board and is a control center of the camera, a camera component 41 and a sensing component 42 are disposed on the first circuit board 4, the camera component 41 is a camera structure and is used for collecting image information, and the sensing component 42 is an infrared sensor and is used for sensing a change of an external environment. In the present embodiment, the camera assembly 41 and the sensing assembly 42 are hermetically assembled with the front case 1, so as to ensure the waterproof and sealing performance of the camera.

The camera provided by the embodiment of the application is characterized in that the outer surface of the radiator 3 is attached to the inner surface of the rear shell 2, the first circuit board 4 is arranged on the first mounting plate 31, so that the space gap between the first circuit board 4 and the rear shell 2 is small, and the heat conduction efficiency of the radiator 3 belonging to a metal piece is better than that of air. Therefore, the thermal contact resistance between the first circuit board 4 and the rear shell 2 can be reduced through the heat radiator 3, so that heat generated on the first circuit board 4 is quickly conducted to the rear shell 2 through the heat radiator 3 and then dissipated to the external environment through the rear shell 2.

As shown in fig. 3 to 5, a second mounting plate 33 is disposed in the heat sink 3 and spaced from the first mounting plate 31, the second mounting plate 33 is disposed away from the front housing 1, a second circuit board 5 electrically connected to the first circuit board 4 is disposed on the second mounting plate 33, a wireless communication module is disposed on the second circuit board 5, a first notch 32 is disposed on a side wall of the heat sink 3 between the first mounting plate 31 and the second mounting plate 33, and the first notch 32 enables the wireless communication module to be used for receiving and transmitting wireless signals. The heat dissipation body 3 is a metal piece which can isolate wireless signals, so the first notch 32 is arranged to ensure that the wireless communication module can work normally. The setting of second circuit board 5 is in order to increase the function of camera for the functional diversity of camera, second circuit board 5 and the split type setting about being of first circuit board 4 have effectively reduced the whole size of camera like this, improve the space utilization in the backshell 2, make the camera miniaturized.

The second circuit board 5 is mounted on the second mounting plate 33, and heat generated by the second circuit board 5 is transferred to the side wall of the heat sink 3 through the second mounting plate 33 and then transferred to the rear case 2, thereby ensuring the heat dissipation efficiency. In this embodiment, the wireless communication module is a WIFI module or a bluetooth module, so that terminals such as a mobile phone or a computer can be connected to the camera, so as to read information collected by the camera.

As shown in fig. 2, 4 and 5, a second notch 34 is formed in a side wall of the heat sink 3 between the first mounting plate 31 and the front casing 1, a heat sink 6 is disposed on an inner side of the front casing 1 at the second notch 34, the heat sink 6 is a metal member, so that heat dissipation efficiency can be improved, and a light source assembly 7 emitting light outside the front casing 1 is disposed on the heat sink 6. Light source subassembly 7 includes the drive plate and locates the LED lamp pearl on the drive plate, and the drive plate is connected with 4 electricity of first circuit board, is equipped with printing opacity portion on the preceding shell 1, and printing opacity portion is transparent plastic board or clear glass, can supply the light of light source subassembly 7 to jet out. The light source assembly 7 is arranged to enable the camera to be used at night, so as to ensure the definition of the image collected by the camera assembly 41.

In the present embodiment, the heat dissipation cover 6 is preferably an aluminum alloy member, as shown in fig. 2, 4 and 8, the heat dissipation cover 6 includes a flat plate 61 and an arc plate 62 formed by bending and extending an edge of the flat plate 61, the light source assembly 7 is disposed on a side surface of the flat plate 61 away from the arc plate 62, and the arc plate 62 encloses a portion of the first circuit board 4. In this embodiment, the arc plate 62 is used for filling the second gap 34, so as to ensure the heat dissipation area of the heat sink 3, the inner side of the arc plate 62 is used for surrounding part of the first circuit board 4, and the outer side of the arc plate 62 is attached to the inner surface of the rear case 2, so that the heat sink 6 can transfer the heat generated by the light source assembly 7 and the heat generated by part of the first circuit board 4 to the rear case 2, thereby improving the heat dissipation efficiency. In the present embodiment, the heat dissipation cover 6 is fixed to the inside of the front case 1 by screws.

As shown in fig. 4, in the present embodiment, the heat conducting member 8 is disposed between the first circuit board 4 and the first mounting plate 31, one side of the heat conducting member 8 abuts against the first circuit board 4, and the other side of the heat conducting member 8 abuts against the first mounting plate 31. The heat-conductive member 8 serves to reduce the gap between the first circuit board 4 and the first mounting plate 31, thereby increasing the heat-conduction efficiency between the first circuit board 4 and the first mounting plate 31. Specifically, in the present embodiment, the heat conduction member 8 includes a first heat conduction pad 81 bonded to the first circuit board 4 and a second heat conduction pad 82 bonded to the first mounting plate 31, and a shield cover 83 is provided between the first heat conduction pad 81 and the second heat conduction pad 82. The first thermal pad 81 is provided with a plurality of chips and is used for being bonded to the chips on the first circuit board 4, and the shielding cover 83 is used for covering the chips on the first circuit board 4 to play a role in shielding, so as to prevent the first circuit board 4 and the second circuit board 5 from causing electromagnetic interference to the chips. In the present embodiment, the heat of the chip on the first circuit board 4 is transferred to the first mounting board 31 via the first thermal pad 81, the shield cover 83, and the second thermal pad 82.

As shown in fig. 4, a third thermal pad 84 is provided between the light source assembly 7 and the plate 61, and a fourth thermal pad 85 is provided between the second circuit board 5 and the second mounting plate 33. The third thermal pad 84 is used for rapidly conducting heat generated by the light source assembly 7 to the heat sink 6, and the fourth thermal pad 85 is used for conducting heat generated by the second circuit board 5 to the second mounting plate 33. In the present embodiment, the first thermal pad 81, the second thermal pad 82, the third thermal pad 84, and the fourth thermal pad 85 are made of silicone or resin material.

In this embodiment, the first mounting plate 31 and the second mounting plate 33 are both provided with studs for mounting and positioning, the first circuit board 4 is fixed on the first mounting plate 31 by matching screws and studs, and the second circuit board 5 is fixed on the second mounting plate 33 by matching screws and studs.

As shown in fig. 1, 6 and 7, in the present embodiment, an audio component 21 and a memory card plug-in component 22 are disposed on the rear shell 2 in a protruding manner toward the inner side of the rear shell 2, and a third notch 35 for accommodating the audio component 21 and the memory card plug-in component 22 is disposed on a side wall of the heat sink 3 away from the first notch 32. In this embodiment, the audio component 21 includes parts such as a receiver, a speaker or a speaker, and is used to implement voice broadcasting and recording functions, and the memory card plug component 22 is used to implement plugging and unplugging of the memory card, so as to take the memory card off the camera and read the memory on the computer terminal. In the present embodiment, the audio module 21 and the memory card connector module 22 are hermetically connected to the rear case 2. In this embodiment, the third notch 35 is configured to accommodate the audio module 21 and the memory card plug-in module 22, so as to improve the compactness of the camera structure. In this embodiment, can also set up universal ball seat in the bottom of backshell 2, universal ball seat can supply the camera to carry out multi-angle rotating, and universal ball seat also can be held to third breach 35.

As shown in fig. 6 and 7, a plurality of reinforcing ribs 23 are arranged on the inner side wall of the rear shell 2, a groove 36 connected with the reinforcing ribs 23 in a limiting and clamping manner is arranged on the outer side wall of the heat radiation body 3, a plurality of mounting columns 24 are arranged in the rear shell 2, inserting holes 37 for inserting the mounting columns 24 are formed in the heat radiation body 3, and after the mounting columns 24 are inserted into the inserting holes 37, the mounting columns 24 are fixedly connected with the heat radiation body 3 through screws, so that the heat radiation body 3 can be prevented from loosening.

In the present embodiment, the surfaces of the heat radiating body 3 and the heat radiating cover 6 are each provided with a first heat radiation layer. The first heat radiation layer is formed by performing a chemical nickel deposition process, a sand blasting process or an anode plate process on the surfaces of the heat radiation body 3 and the heat radiation cover 6, and the first heat radiation layer has the function of improving the radiation coefficients of the heat radiation body 3 and the heat radiation cover 6, so that the purpose of enhancing the radiation heat radiation efficiency of the heat radiation body 3 and the heat radiation cover 6 is achieved.

In the present embodiment, the front case 1 and the rear case 2 are both plastic members, preferably made of polycarbonate resin material. A second heat radiation layer is provided on the outer surface of the rear case 2, and the second heat radiation layer is formed by a sand blasting process. The effect on second heat radiation layer is the radiation coefficient who increases rear housing 2 surface, strengthens rear housing 2's heat radiation ability to improve rear housing 2 and external environment and carry out the efficiency of heat exchange, guarantee the radiating effect of camera.

In this embodiment, first circuit board 4, the overwhelming majority of heat that second circuit board 5 and light source subassembly 7 produced carries out on heat-conducting mode transmits backshell 2 through radiator 3 and heat exchanger 6, a small part of heat passes through the air and transmits to backshell 2 with heat radiation on, the heat is at the inside transmission efficiency of camera so guaranteed, heat on backshell 2 contacts and heats nearer air bed with the adjacent air bed of backshell 2 surface, thereby make the air bed form the difference in temperature and form natural convection, and take away the heat on the backshell 2, the radiating efficiency has been guaranteed.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The camera comprises a front shell and a rear shell and is characterized in that a radiator is arranged in the rear shell, the outer surface of the radiator is attached to the inner surface of the rear shell, a first mounting plate is arranged in the radiator, a first circuit board is arranged on the first mounting plate, at least one camera shooting assembly is arranged on the first circuit board, and the radiator is a metal piece.

2. The camera according to claim 1, wherein a second mounting plate is provided in the heat sink and spaced apart from the first mounting plate, a second circuit board electrically connected to the first circuit board is provided on the second mounting plate, a wireless communication module is provided on the second circuit board, a first notch is provided on a side wall of the heat sink between the first mounting plate and the second mounting plate, and the first notch enables the wireless communication module to be used for receiving and transmitting wireless signals.

3. The camera as claimed in claim 2, wherein a second notch is formed in a side wall of the heat dissipation body between the first mounting plate and the front housing, a heat dissipation cover is disposed on an inner side of the front housing at the second notch, and a light source assembly for emitting light to an outside of the front housing is disposed on the heat dissipation cover.

4. The camera as claimed in claim 3, wherein the heat dissipation cover includes a flat plate and an arc plate extending from an edge of the flat plate, the light source assembly is disposed on a side surface of the flat plate away from the arc plate, and the arc plate surrounds a portion of the first circuit board.

5. The camera of claim 4, wherein a third thermal pad is disposed between the light source assembly and the plate, and a fourth thermal pad is disposed between the second circuit board and the second mounting plate.

6. The camera of claim 1, wherein a thermal conductive member is disposed between the first circuit board and the first mounting plate, one side of the thermal conductive member abutting the first circuit board and the other side of the thermal conductive member abutting the first mounting plate.

7. The camera of claim 6, wherein the thermal conductive member comprises a first thermal pad attached to the first circuit board and a second thermal pad attached to the first mounting board with a shield disposed therebetween.

8. The camera as claimed in claim 2, wherein the rear housing has an audio module and a memory card connector module protruding toward an inner side of the rear housing, and a third notch for accommodating the audio module and the memory card connector module is disposed on a side wall of the heat sink away from the first notch.

9. The camera according to claim 3, wherein surfaces of the heat radiating body and the heat radiating cover are each provided with a first heat radiating layer.

10. A camera according to any one of claims 1 to 9, wherein the front and rear housings are plastic parts, and the outer surface of the rear housing is provided with a second heat radiating layer.