Video acquisition device

Abstract

The utility model provides a video acquisition device. The video acquisition device comprises a bottom plate; the shell is arranged on the bottom plate and fixedly connected with the bottom plate to form a hollow structure; the mainboard is located in the hollow structure, a first surface of the mainboard is connected with a plurality of functional interfaces, a second surface of the mainboard is provided with circuit elements and circuits, and the first surface directly faces the bottom plate; the battery is located in the hollow structure and right faces the second surface of the main board, and the upper surface of the battery is a plane; the holder assembly is located above the battery and extends out of the upper surface of the shell, and the surface, directly facing the battery, of the holder assembly is a plane; the camera shooting assembly is fixedly arranged on the holder assembly; wherein each functional interface is arranged at the edge of the main board, and is connected with an external circuit through a functional opening, at a corresponding position, of the shell; the upper surface of the shell is further provided with a holder opening, and the holder assembly extends out of the upper surface of the shell through the holder opening. Through the compact structural design, the size of the video acquisition device is effectively reduced.

Description

Technical Field

[0001] This application belongs to the field of camera technology, and relates to a video acquisition technology, and in particular to a video acquisition device. Background Technology

[0002] When used for live streaming, video capture devices typically require stable lenses with adjustable focal lengths to adapt to changes in the scene or movement of the subject. For example, in some outdoor live streaming, it is usually necessary to handhold the video capture device. To avoid image shake or blurring due to focal length changes, the video capture device needs to be equipped with a gimbal and zoom lens. At the same time, the video capture device usually also needs to have strong battery life to meet the needs of long-term shooting.

[0003] Therefore, in existing technologies, video capture devices typically integrate a gimbal, zoom lens, and a power module with strong battery life. However, currently, no video capture device can arrange the gimbal, zoom lens, and power module in a space-saving manner. This results in low internal space utilization of video capture devices that integrate these functions. Video capture devices are usually large and heavy, making them inconvenient to carry. For mobile or outdoor live streaming, the increased weight and size of the equipment also bring greater challenges to handling and installation. Especially for users who use handheld live streaming, the large size of the video capture device undoubtedly increases the workload and difficulty, affecting the efficiency and convenience of live streaming. Summary of the Invention

[0004] The purpose of this application is to provide a video capture device to solve the problems in the prior art, where video capture devices used for live streaming applications need to integrate many functional modules, and the reasonable arrangement of these functional modules leads to low internal space utilization, large size, and difficulty in portability.

[0005] In a first aspect, this application provides a video capture device, comprising: a base plate; a housing disposed on the base plate and fixedly connected to the base plate to form a hollow structure; a motherboard located inside the hollow structure, the motherboard having a first surface connected to a plurality of functional interfaces and a second surface provided with circuit elements and lines, the first surface facing the base plate; a battery located inside the hollow structure, facing the second surface of the motherboard, the upper surface of the battery being flat; a gimbal assembly located above the battery and protruding from the upper surface of the housing, the surface of the gimbal assembly facing the battery being flat; and a camera assembly fixedly disposed on the gimbal assembly; wherein each of the functional interfaces is disposed on the edge of the motherboard and is connected to external circuits through functional openings in the housing at corresponding positions; the upper surface of the housing is also provided with a gimbal opening, through which the gimbal assembly protrudes from the upper surface of the housing.

[0006] In one embodiment of this application, a horizontal gimbal is located inside the hollow structure and above the battery, with a flat lower surface; a cantilever is located above the outer casing and is rotatably connected to the horizontal gimbal through the gimbal opening; a vertical gimbal is rotatably disposed at the top of the cantilever and is fixedly connected to the camera assembly.

[0007] In one embodiment of this application, a POE element is connected to the motherboard, and the POE element is disposed on a first surface of the motherboard; the base plate has a corresponding opening at the POE port position of the POE element.

[0008] In one embodiment of this application, a heat dissipation component is disposed in the space between the motherboard and the base plate.

[0009] In one embodiment of this application, the heat dissipation component includes: a high-conductivity heat sink attached to a first surface of the motherboard; a heat dissipation metal block disposed directly below the high-conductivity heat sink; and a fan disposed on the base plate and located directly below the heat dissipation metal block.

[0010] In one embodiment of this application, the camera assembly includes: a metal lens barrel disposed at the top of the gimbal assembly; and a zoom lens group disposed inside the metal lens barrel.

[0011] In one embodiment of this application, the circuit elements disposed on the second surface of the motherboard are all surface mount elements.

[0012] In one embodiment of this application, the motherboard is a high-density interconnect circuit board.

[0013] In one embodiment of this application, the motherboard, the battery, the gimbal assembly, and the camera assembly are electrically connected via a flexible circuit board or a coaxial cable.

[0014] In one embodiment of this application, the outer shell is made of hard plastic, and the base plate is made of aluminum alloy.

[0015] As described above, this application provides a video acquisition device. By placing the functional interface on the first surface of the motherboard and the circuit components and lines on the second surface, the congestion on one side of the motherboard or the need for a larger area is avoided, thereby miniaturizing the motherboard. Furthermore, a battery is placed on top of the motherboard, and a gimbal assembly is placed on top of the battery, thereby stacking the various structures of the video acquisition device in the vertical direction to make full use of the internal space of the video acquisition device, making the structure of the video acquisition device more compact, thus effectively reducing the size of the video acquisition device and realizing the miniaturized design of the video acquisition device to meet the live streaming requirements of the video acquisition device. Attached Figure Description

[0016] Figure 1 The diagram shown is a structural schematic of a video acquisition device according to an embodiment of this application.

[0017] Figure 2 The diagram shown is a structural schematic of another video acquisition device described in an embodiment of this application.

[0018] Figure 3 The diagram shown is a structural schematic of another video acquisition device described in an embodiment of this application.

[0019] Figure 4 The diagram shown is a structural schematic of a camera component according to an embodiment of this application.

[0020] Explanation of reference numerals in the attached figures

[0021] 110: Base plate; 120: Housing; 130: Gimbal assembly; 131: Horizontal gimbal; 132: Cantilever; 133: Vertical gimbal; 140: Camera assembly; 141: Metal lens barrel; 142: Zoom lens group; 150: Mainboard; 151: PoE element; 160: Battery; 170: Heat dissipation assembly. Detailed Implementation

[0022] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0023] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. Therefore, the drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0024] To meet the demands of long-duration, scene-changing live streams, video capture devices typically need to be equipped with gimbals, zoom lenses, and long-lasting batteries. However, integrating these features into a single video capture device often results in a large size and weight, making it inconvenient to carry and difficult to install. This negatively impacts the efficiency and convenience of live streaming, rendering the video capture device impractical in real-world live streaming applications, especially in handheld scenarios.

[0025] The following embodiments of this application provide a video capture device that integrates a gimbal, zoom lens, and a long-lasting battery through vertical stacking. This results in a compact internal structure and a small overall size, which is beneficial for miniaturization and portability. Consequently, it improves the efficiency and convenience of live streaming and facilitates the practical application of video capture devices in live streaming scenarios.

[0026] The principle and implementation of a video acquisition device according to this embodiment will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can understand the video acquisition device of this embodiment without creative effort.

[0027] like Figure 1 As shown, the video capture device includes a base, a gimbal assembly 130 mounted on the base, and a camera assembly 140 mounted on top of the gimbal assembly. The camera assembly 140 is used to capture live video content and is fixedly connected to the top of the gimbal assembly 130 to ensure shooting stability, making it suitable for outdoor and other applications requiring a handheld video capture device.

[0028] The base includes a base plate 110 and a housing 120 fixed to the base plate 110. It should be noted that the lower surface of the base plate 110 is designed for stable placement of the video acquisition device. For example, the lower surface of the base plate 110 may be flat, or it may have multiple feet to provide stable support for the video acquisition device. Simultaneously, the base plate 110 and the housing 120 are fixedly connected to form a hollow structure within them, thereby integrating other functional structures of the video acquisition device. For example, the base plate 110 has threaded holes, through which the housing 120 is fixedly connected.

[0029] Specifically, such as Figure 2 and Figure 3 As shown, the video acquisition device provided in this embodiment also includes a motherboard 150 located inside the hollow structure. The motherboard 150 is located directly above the base plate 110. It should be noted that the motherboard 150 is the core structure of the video acquisition device. Through the circuit structure and various circuit components set on the motherboard 150, the various functions of the video acquisition device are realized. The two sides of the motherboard 150 are respectively the first surface and the second surface. The surface directly opposite the base plate 110 is the first surface, and the surface away from the base plate 110 is the second surface. Further, the first surface of the motherboard 150 is connected to several functional interfaces, and the second surface is provided with circuit components and lines. Separating the functional interfaces and circuit components avoids crowding or requiring a larger area if all these devices are placed on a single surface, thereby saving the area of ​​the motherboard 150 and reducing its volume. This allows for a compact arrangement of the functional modules within the hollow structure, achieving miniaturization of the video acquisition device. The functional interfaces on the motherboard 150 include, but are not limited to, charging interfaces, video output interfaces, audio input / output interfaces, and other data transmission interfaces. These functional interfaces are located on the edge of the motherboard 150, with the interfaces facing outwards. They connect to external lines, such as charging cables, video data transmission cables, and audio data transmission cables, through functional openings provided at corresponding positions on the housing 120, thereby enabling various functions of the video acquisition device. The functional openings are pre-set openings on the housing 120, and the position of each functional opening corresponds one-to-one with each functional interface, allowing each functional interface to be exposed through its corresponding opening for connection to external lines.

[0030] Optionally, the motherboard 150 in this embodiment is a highly integrated motherboard 150, wherein each functional module on the motherboard 150 uses a highly integrated chip to reduce the number of components, reduce the size occupied by the motherboard 150, and further reduce the size of the video acquisition device. For example, the main chip of the motherboard 150 is the SD3402 system-on-a-chip from Hisilicon Semiconductor, and multiple functional module chips are connected through this SD3402 system-on-a-chip to achieve functional integration of the video acquisition device, thereby achieving better live streaming results.

[0031] In some optional embodiments, all circuit components on the motherboard 150 are surface-mount components. Surface-mount components refer to circuit components mounted on the motherboard 150 using surface-mount technology. For example, each circuit component is in surface-mount form and is placed onto its corresponding position on the motherboard 150 using equipment such as a pick-and-place machine, and then soldered using reflow soldering. Since surface-mount technology does not require pins for the circuit components, the space occupied by each circuit component on the motherboard 150 can be effectively reduced, thereby reducing the overall size of the motherboard 150 and facilitating further miniaturization of the video acquisition device.

[0032] In some alternative implementations, the motherboard 150 is a high-density interconnect circuit board. The high-density interconnect circuit board refers to a circuit board that achieves high-density interconnection through micro-blind via technology. Specifically, by using micro-blind vias and buried vias to interconnect different layers of circuitry within the circuit board, wiring space can be saved, wiring density increased, and the volume occupied by the motherboard 150 reduced, further miniaturizing the video acquisition device.

[0033] Furthermore, such as Figure 2 and Figure 3 As shown, the video acquisition device provided in this embodiment also includes a battery 160 located inside the hollow structure. Specifically, the battery 160 is located above the motherboard 150 and directly opposite the second surface of the motherboard 150. Based on this, the battery 160 and the motherboard 150 are vertically stacked inside the hollow structure, utilizing the vertical space to integrate various functional structures, maximizing space utilization, and thus facilitating the miniaturization of the video acquisition device. It should be noted that in order to support the needs of long-term outdoor live streaming or mobile scenarios, the battery 160 needs to have a large energy storage capacity. Optionally, in this embodiment, the battery 160 is a lithium battery. Lithium batteries have high energy density and can store a lot of electrical energy in a small volume and weight. For example, in this embodiment, the nominal voltage of the lithium battery is 7.6V, the capacity is 5000mAh, and the battery life is 4 hours.

[0034] Furthermore, the gimbal assembly 130 is positioned above the battery 160. The upper surface of the battery 160, i.e. the surface directly opposite the gimbal assembly 130, and the lower surface of the gimbal assembly 130, i.e. the surface directly opposite the battery 160, are both planar. This allows the gimbal assembly 130 and the battery 160 to be placed close together, thereby reducing the vertical space occupied by the gimbal assembly 130 and the battery 160, and further reducing the size of the video acquisition device.

[0035] It should be noted that the gimbal assembly 130 is used to support and stabilize the camera assembly 140 to meet the needs of, for example, handheld or mobile live streaming, thereby improving the live streaming effect of the video capture device. Based on this, the camera assembly 140 is typically positioned at the top of the gimbal assembly 130; that is, the gimbal assembly 130 is connected between the base and the camera assembly 140, with a portion of the gimbal assembly 130 protruding from the upper surface of the housing 120. Specifically, the upper surface of the housing 120 has a gimbal opening, through which the gimbal assembly 130 protrudes from the upper surface of the housing 120 to mount the camera assembly 140 at its top.

[0036] In some optional embodiments, the gimbal assembly 130 includes a horizontal gimbal 131, a cantilever 132, and a vertical gimbal 133 connected sequentially from bottom to top. The horizontal gimbal 131 is located inside the hollow structure formed by the housing 120 and the base plate 110, positioned above the battery 160. The horizontal gimbal 131 is rotatably connected to the cantilever 132, so that the horizontal gimbal 131 drives the cantilever 132 to rotate, thereby enabling the camera assembly 140 to rotate in the horizontal direction. Therefore, when the camera assembly 140 experiences horizontal shaking, the horizontal gimbal 131, through the cantilever 132, drives the camera assembly 140 to rotate, thereby compensating for the horizontal shaking and maintaining the relative stability of the camera assembly 140 in the horizontal direction. The vertical gimbal 133 and the cantilever 132 are rotatably connected to allow the camera assembly 140 to rotate vertically, thereby stabilizing the camera assembly 140 in the vertical direction. Specifically, the working principle of the vertical gimbal is described above for the working principle of the horizontal gimbal 131, and will not be repeated here. The cantilever 132 connects the horizontal gimbal 131 and the vertical gimbal 133. Specifically, the cantilever is located above the horizontal gimbal 131, outside the housing 120, and connects to the horizontal gimbal 131 through the gimbal opening on the housing 120. The top of the cantilever 132 is rotatably connected to the vertical gimbal 133. When the horizontal gimbal 131 rotates, the rotation is transmitted to the camera assembly 140 through the cantilever 132 and the vertical gimbal 133, thereby stabilizing the camera assembly 140. Furthermore, the connection between the horizontal gimbal 131, the vertical gimbal 133, and the cantilever ensures the stability of the camera assembly 140 during shooting, resulting in better live streaming performance.

[0037] Furthermore, the lower surface of the horizontal pan-tilt unit 131 is flat and faces the upper surface of the battery 160, so as to achieve close proximity between the horizontal pan-tilt unit 131 and the battery 160, thereby reducing the size of the video acquisition device.

[0038] In some alternative implementations, since the motherboard 150, battery 160, gimbal assembly 130 and camera assembly 140 need to be electrically connected, in order to avoid the wiring connection restricting the internal structure of the video acquisition device and thus causing the video acquisition device to become larger, in this embodiment, the motherboard 150, battery 160, gimbal assembly 130 and camera assembly 140 are electrically connected by a flexible circuit board or coaxial cable, so that the positions of the electrically connected structures are relatively flexible, which is conducive to the miniaturization design of the video acquisition device.

[0039] In some alternative implementations, such as Figure 2 and Figure 3 As shown, a PoE (Power over Ethernet) component 151 is connected to the motherboard 150. The PoE component 151 is a component that transmits power via Ethernet. Since the first surface of the motherboard 150 has several functional interfaces, and there is sufficient space below the motherboard 150 to accommodate these interfaces, the PoE component 151 is also located on the first surface of the motherboard 150. This fully utilizes the space below the motherboard 150, enabling multiple power supply methods for the video acquisition device without increasing its size, thus improving its practicality and making it suitable for live streaming in more scenarios. Furthermore, the base plate 110 has a corresponding opening at the PoE port of the PoE component 151, allowing the Ethernet cable to connect to the PoE component 151 for power supply. It can be understood that, depending on the specific location of the PoE port, the corresponding opening can also be located in other positions on the base of the video acquisition device. For example, if the PoE port faces the housing 120, an opening can also be provided at a corresponding position on the housing 120, allowing the Ethernet cable to connect to the PoE component 151 for power supply. For example, the PoE port of the PoE element 151 can be an RJ45 network port, a Type-C interface, or an HDMI interface.

[0040] It should be noted that video capture devices often generate considerable heat during prolonged use. If this heat is not dissipated promptly, the internal temperature of the video capture device may rise, potentially affecting circuit components, degrading performance, or even damaging the device. However, due to the miniaturized design of the video capture device provided in this embodiment, the gaps between its components are small, making heat dissipation challenging. Therefore, to prevent damage to components from excessively high internal temperatures, such as… Figure 2 and Figure 3As shown, the video acquisition device provided in this embodiment also includes a heat dissipation component 170 disposed inside the hollow structure. The heat dissipation component 170 is used to collect heat from inside the video acquisition device and conduct it to the outside, thereby preventing the temperature inside the video acquisition device from becoming too high. Specifically, the heat dissipation component 170 is disposed in the space between the motherboard 150 and the base plate 110. This is because the motherboard 150 contains many circuit components, which not only easily generate a lot of heat during the operation of the video acquisition device, but also make the circuit components susceptible to temperature effects and even damage. Therefore, placing the heat dissipation component 170 below the motherboard 150 not only effectively utilizes the space below the motherboard 150, thereby reducing the size of the video acquisition device, but also effectively prevents heat accumulation inside the video acquisition device, achieving a good heat dissipation effect.

[0041] In some optional embodiments, the heat dissipation assembly 170 includes, from top to bottom, a high-conductivity heat sink, a heat dissipation metal block, and a fan. The high-conductivity heat sink is attached to the first surface of the motherboard 150 to conduct heat from the surface of the motherboard 150. The heat dissipation metal block is positioned directly below the high-conductivity heat sink to conduct heat from it. The combination of the high-conductivity heat sink and the heat dissipation metal block allows heat generated on the motherboard 150 to be conducted to the space below the motherboard via thermal transfer, and then dissipated to the outside of the video acquisition device through the base plate 110, thereby preventing excessive temperature inside the video acquisition device. For example, the high-conductivity heat sink is a thermally conductive silicone pad, and the heat dissipation metal block is an aluminum alloy heat dissipation metal block.

[0042] Furthermore, the heat dissipation component 170 also includes a fan, which accelerates heat convection through airflow, thereby increasing the rate of heat transfer and further improving the heat dissipation efficiency of the heat dissipation component 170. Specifically, the fan is located directly below the heat dissipation metal block and is mounted on the base plate 110. The base plate 110 has ventilation holes at the position corresponding to the fan to create air convection at the fan, transferring the heat generated by the heat dissipation metal block and preventing heat accumulation inside the video acquisition device.

[0043] In some alternative implementations, the camera assembly 140 is a zoomable camera assembly. Specifically, the focal length of the camera assembly 140 is determined and changed according to the actual shooting scene to enhance the practicality of the video acquisition device. For example, when conducting outdoor live broadcasts with changing scenes or when the subject is in motion, the camera assembly 140 can zoom to ensure the clarity of the live broadcast image, thereby achieving better live broadcast results.

[0044] Furthermore, such as Figure 4As shown, the camera assembly 140 includes a metal lens barrel 141 and a zoom lens group 142 disposed inside the metal lens barrel 141. The metal lens barrel 141 has a certain space inside to house the zoom lens group 142. The zoom lens group 142 can move within the metal lens barrel 141, thereby realizing the focal length change of the camera assembly 140.

[0045] Furthermore, the zoom lens group 142 has a larger target surface to allow more light to be captured through the camera assembly 140, thereby achieving better live streaming results. For example, the target surface of the zoom lens group 142 is 1 / 1.3 inches.

[0046] In some optional embodiments, to reduce the weight of the video acquisition device while ensuring the surface strength of the video acquisition device to improve its lifespan, the video acquisition device provided in this embodiment uses a hard plastic material for the outer shell 120, such as PC plastic, and an aluminum alloy material for the base plate 110. Since the base plate 110 has a heat dissipation component 170 and high heat dissipation requirements, aluminum alloy with good heat dissipation capacity is used. The outer shell 120, with relatively lower requirements for strength and heat dissipation capacity, can use a lighter hard plastic material. Furthermore, other parts of the video acquisition device also use hard plastic or aluminum alloy materials to ensure strength while reducing weight. Specifically, parts with high strength requirements, such as the metal lens barrel 141 or the cantilever 132, use aluminum alloy, while other parts use hard plastic to reduce the weight of the video acquisition device and effectively reduce its manufacturing cost.

[0047] In summary, the video acquisition device provided in this application fully utilizes both sides of the motherboard 150 by setting several functional interfaces on the first surface and circuit components and lines on the second surface, thereby reducing the area and space occupied by the motherboard 150. Furthermore, by stacking structures such as the battery 160 and the gimbal assembly 130 in the vertical direction, the space is maximized, resulting in a more compact structure for the video acquisition device. This facilitates the miniaturization of the video acquisition device, effectively improving its practicality, adapting to live streaming needs, and possessing high industrial application value.

[0048] The descriptions of the processes or structures corresponding to the above figures each have their own emphasis. For parts of a process or structure that are not described in detail, please refer to the relevant descriptions of other processes or structures.

[0049] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A video capture device, comprising: It comprises: a bottom plate; a shell arranged on the bottom plate and fixedly connected with the bottom plate to form a hollow structure; a main board located inside the hollow structure, the first surface of the main board being connected with a plurality of functional interfaces, the second surface being provided with circuit elements and lines, and the first surface facing the bottom plate; a battery located inside the hollow structure and facing the second surface of the main board, the upper surface of the battery being a plane; a gimbal assembly located above the battery and protruding out of the upper surface of the shell, the surface of the gimbal assembly facing the battery being a plane; a camera assembly fixedly arranged on the gimbal assembly; wherein each functional interface is arranged at the edge of the main board and connected with external lines through a functional opening of the shell at the corresponding position; the upper surface of the shell is further provided with a gimbal opening, and the gimbal assembly protrudes out of the upper surface of the shell through the gimbal opening.

2. The apparatus of claim 1, wherein, The gimbal assembly comprises: a horizontal gimbal located inside the hollow structure and above the battery, the lower surface being a plane; a cantilever located above the shell and rotatably connected with the horizontal gimbal through the gimbal opening; a vertical gimbal rotatably arranged at the top end of the cantilever and fixedly connected with the camera assembly.

3. The apparatus of claim 1, wherein, A POE element is connected to the main board, the POE element being arranged on the first surface of the main board; the bottom plate is provided with a corresponding opening at the POE port position of the POE element.

4. The apparatus of claim 1, wherein, It further comprises: a heat dissipation assembly arranged in the space between the main board and the bottom plate.

5. The apparatus of claim 4, wherein, The heat dissipation assembly comprises: a high-conductivity heat dissipation sheet attached to the first surface of the main board; a heat dissipation metal block arranged directly below the high-conductivity heat dissipation sheet; a fan arranged on the bottom plate and located directly below the heat dissipation metal block.

6. The apparatus of claim 1, wherein, The camera assembly comprises: a metal lens barrel arranged at the top end of the gimbal assembly; a zoom lens group arranged inside the metal lens barrel.

7. The apparatus of claim 1, wherein, The circuit elements arranged on the second surface of the main board are all surface-mounted components.

8. The apparatus of claim 1, wherein, The main board is a high-density interconnection circuit board.

9. The apparatus of claim 1, wherein, The main board, the battery, the gimbal assembly and the camera assembly are electrically connected through a flexible circuit board or a coaxial line.

10. The apparatus of claim 1, wherein, The material of the shell is hard plastic material, and the material of the bottom plate is aluminum alloy material.

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