Camera shooting assembly and endoscope

Abstract

The embodiment of the invention provides a camera shooting assembly and an endoscope, a flexible PCB comprises a first end part and a second end part which are opposite to each other, and a power supply connecting circuit is printed on the flexible PCB; the lens is connected to the first end part; the wire rod is connected to the second end part and used for being connected with external equipment; the capacitors comprise a first capacitor and a second capacitor, the first capacitor is connected to a digital power supply connecting circuit corresponding to a digital power supply of the lens in the power supply connecting circuit, and the second capacitor is connected to an analog power supply connecting circuit corresponding to an analog power supply of the lens in the power supply connecting circuit. According to the scheme, the first capacitor is connected to the digital power supply connecting line, and the second capacitor is connected to the analog power supply connecting line, so that the generation of image noise points can be effectively inhibited from the source, and the lens can output clearer, more stable and purer high-quality images. And the flexible PCB is used as a connecting and bearing platform, so that great flexibility is provided for the spatial layout of the assembly.

Description

TECHNICAL FIELD

[0001] Embodiments of the present specification relate to the technical field of medical devices, in particular to a camera assembly and an endoscope. BACKGROUND

[0002] At present, the disposable endoscope soft mirror market is developing rapidly, and the products are developing towards high definition. The small lens imaging pixels increase from 40,000 pixels to 160,000 pixels, and then to 1,000,000 pixels, which requires higher stability and anti-interference ability of the lens. However, the existing endoscope has signal integrity problems, especially power noise and signal crosstalk, which causes image noise and instability, seriously affecting the doctor's diagnosis.

[0003] Therefore, the present specification aims to provide a camera assembly and an endoscope. SUMMARY

[0004] In view of the above problems of the prior art, the purpose of the embodiments of the present specification is to provide a camera assembly and an endoscope.

[0005] In order to solve the above technical problems, the specific technical solutions of the embodiments of the present specification are as follows:

[0006] In a first aspect, the present specification provides a camera assembly, comprising a lens, a flexible PCB board, a capacitor and a wire;

[0007] The flexible PCB board comprises opposite first and second end portions, and a power supply connection circuit is printed on the flexible PCB board.

[0008] The lens is connected to the first end portion of the flexible PCB board, and the wire is connected to the second end portion of the flexible PCB board for connection with an external device.

[0009] The capacitor comprises a first capacitor and a second capacitor, the first capacitor is connected to a digital power supply connection circuit corresponding to a digital power supply of the lens in the power supply connection circuit, and the second capacitor is connected to an analog power supply connection circuit corresponding to an analog power supply of the lens in the power supply connection circuit.

[0010] Specifically, the lens comprises a digital power supply pin and an analog power supply pin, the digital power supply pin is connected to the digital power supply connection circuit, and the analog power supply pin is connected to the analog power supply connection circuit.

[0011] Further, the flexible PCB board comprises a first side and a second side, the digital power supply connection circuit and the analog power supply connection circuit are both arranged on the first side, and a reinforcing plate is arranged on one side of the second side close to the first end portion.

[0012] Preferably, a bending guide is further arranged between the first end portion and the second end portion.

[0013] Further, the width of the bending guide is less than the width of the first end portion and / or the second end portion.

[0014] Still further, a support seat is further included, the support seat including a transverse support seat and a longitudinal support seat connected to each other, the transverse support seat being arranged at one side of the second side surface close to the first end portion;

[0015] The bending guide is bent from the transverse support seat, and the longitudinal support seat is used to support at least part of the second end portion.

[0016] In particular, the size of the support seat is adapted to the size of the lens.

[0017] In particular, the sum of the connection lines arranged on the first side surface and the connection lines arranged on the second side surface is at least 12, and the 12 connection lines at least include a clock connection line and a data connection line.

[0018] Preferably, the first capacitor and / or the second capacitor is a patch type multilayer ceramic capacitor; and the lens has a pixel greater than or equal to 1 million pixels.

[0019] In a second aspect, the embodiments of the present specification provide an endoscope including the camera assembly provided in the above technical solution.

[0020] The camera assembly and the endoscope provided by the embodiments of the present specification can effectively filter the high-frequency switching noise generated when the digital circuit works by connecting the first capacitor to the digital power supply connection line, and can provide a pure power supply environment for the image sensing core which is extremely sensitive to power supply noise, effectively inhibiting the generation of image noise from the root, achieving precise filtering of power supply noise, so that the lens can output clearer, more stable and pure high-quality images. And the flexible PCB board as a connection and bearing platform provides great flexibility for the spatial layout of the assembly. It ensures that while introducing high-performance decoupling filtering function, the final packaging size of the entire camera assembly, especially the radial size of the lens part, does not increase, perfectly meeting the application scenarios such as endoscopes which have strict requirements on the front-end size.

[0021] In order to make the above and other purposes, features and advantages of the embodiments of the present specification more obvious and easy to understand, the following preferred embodiments are specifically described below, and the accompanying drawings are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present specification or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only represent some of the embodiments of the present specification, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 A structural schematic diagram of a camera assembly provided by the present specification is shown;

[0024] Figure 2 A structural schematic diagram of the camera assembly from another perspective is shown;

[0025] Figure 3 A structural schematic diagram of the camera assembly when the flexible PCB is in a bent state is shown;

[0026] Figure 4 A structural schematic diagram of the camera assembly when the flexible PCB is in a bent state from another perspective is shown.

[0027] Explanation of the drawing symbols:

[0028] 10, lens; 20, flexible PCB; 21, first end; 22, second end; 23, bending guide; 30, capacitor; 31, first capacitor; 32, second capacitor; 40, wire; 50, support seat; 60, reinforcing plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present specification will be described clearly and completely below in combination with the drawings in the embodiments of the present specification. Obviously, the described embodiments only represent some of the embodiments of the present specification, rather than all the embodiments. Based on the embodiments in the present specification, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present specification.

[0030] It should be noted that the terms "first", "second", and the like in the present specification and claims and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present specification described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, device, product or equipment that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0031] The embodiment of the present specification provides a camera assembly and an endoscope to solve the problem that the endoscope in the prior art is prone to noise and poor imaging effect.

[0032] As shown in Figures 1 to 4 The embodiment of the present specification provides a camera assembly, which comprises a lens 10, a flexible PCB board 20, a capacitor 30 and a wire 40.

[0033] The flexible PCB board 20 comprises opposite first and second end portions 21 and 22, and a power supply connection circuit is printed on the flexible PCB board 20.

[0034] The lens 10 is connected to the first end portion 21 of the flexible PCB board 20, and the wire 40 is connected to the second end portion 22 of the flexible PCB board 20 for connection with an external device (as shown in Figure 4

[0035] The capacitor 30 comprises a first capacitor 31 and a second capacitor 32, the first capacitor 31 is connected to a digital power supply connection circuit corresponding to a digital power supply of the lens 10 in the power supply connection circuit, and the second capacitor 32 is connected to an analog power supply connection circuit corresponding to an analog power supply of the lens 10 in the power supply connection circuit.

[0036] The camera assembly provided by the embodiment of the present specification can effectively filter out high-frequency switching noise generated during the operation of the digital circuit through the first capacitor 31 connected to the digital power supply connection circuit, and can provide a pure power supply environment for the image sensing core which is extremely sensitive to power supply noise, thereby effectively suppressing the generation of image noise from the root and realizing precise filtering of power supply noise, so that the lens can output clearer, more stable and pure high-quality images. The flexible PCB board serves as a connection and bearing platform, providing great flexibility for the spatial layout of the assembly. During packaging, the flexible PCB board can be bent or folded according to the product structure, so that the electronic components such as the capacitor and the connection circuit are compactly integrated in the limited internal space. This design ensures that the final packaging size of the entire camera assembly, especially the radial size of the lens part, does not increase after introducing the high-performance decoupling filtering function, and perfectly meets the application scenarios such as endoscopes which have strict requirements on the front-end size.

[0037] The lens 10 comprises a digital power supply pin and an analog power supply pin, the digital power supply pin is connected to the digital power supply connection circuit, and the analog power supply pin is connected to the analog power supply connection circuit.

[0038] ​In the embodiments of the present specification, by directly and independently connecting the digital pins and the analog power supply pins of the lens to the corresponding dedicated power supply lines on the flexible PCB, precise partition management and efficient filtering of power supply noise are achieved. In addition, it can also ensure that the decoupling capacitor can act on the noise source with the shortest path, greatly improving the filtering efficiency, thereby guaranteeing the purity of the power supply of the image sensor from the root of the circuit architecture, and significantly improving the clarity and stability of the image.

[0039] The flexible PCB 20 comprises a first side and a second side, and the digital power supply connection line and the analog power supply connection line are arranged on the first side; the second side is provided with a reinforcing plate 60 close to one side of the first end portion 21.

[0040] By arranging the digital power supply connection line and the analog power supply connection line on the same side of the flexible PCB, the first capacitor and the second capacitor are arranged on the same side of the flexible PCB, which can optimize the wiring space and signal integrity. At the same time, the reinforcing plate is arranged at the key position of the second side, which significantly enhances the mechanical strength of the end portion of the flexible PCB; in this way, it can effectively prevent the solder pad from falling off or the line from being damaged when welding the lens or bending the plate body, and improve the structural reliability and production yield of the assembly.

[0041] As shown in Figure 2 In the embodiments of the present specification, the first end portion 21 and the second end portion 22 are further provided with a bending guide portion 23.

[0042] The bending guide portion 23 can facilitate the bending of the flexible PCB 20.

[0043] In some preferred embodiments, the width of the bending guide portion 23 is less than the width of the first end portion 21 and / or the second end portion 22.

[0044] In this way, the bending guide portion 23 with a pre-set width can define a unique and optimal bending position on the flexible PCB 20. This ensures that the assembly can be bent in a predictable and repeatable manner during assembly, avoiding random and uncontrollable deformation of the flexible PCB in other unintended areas, thereby ensuring the consistency and reliability of product assembly.

[0045] Moreover, the design of the narrowed bending guide portion 23 reduces the bending stiffness of this area and requires less force to bend. In this way, not only can a smaller bending radius be achieved to adapt to extremely compact spaces, but also the mechanical damage of the conductive line (especially the precise power supply line) caused by bending stress can be effectively reduced, preventing line fatigue and fracture and improving the durability of the product.

[0046] As shown in Figure 4As shown, the camera assembly provided by the embodiment of the present specification further comprises a support seat 50, wherein the support seat 50 comprises a transverse support seat and a longitudinal support seat connected with each other, that is, the support seat 50 is in an "L" shape, and the transverse support seat is arranged on one side of the second side close to the first end 21.

[0047] The bending guide 23 is bent from the transverse support seat, and the longitudinal support seat is used for supporting at least part of the second end 22.

[0048] In the embodiment of the present specification, the transverse support seat provides a firm mounting reference for the first end 21 (i.e., the core area bearing the lens) of the flexible PCB, which can effectively enhance the rigidity of this area and prevent deformation or damage due to stress during assembly or use. At the same time, it isolates the main bending stress and deformation in the preset bending guide, protecting the precise electrical connection between the lens and the flexible board. The bending guide is bent from the edge of the transverse support seat, and this positioning design ensures that the angle and position of each bending are highly consistent and controllable, enabling quality control. After bending, the longitudinal support seat is used for receiving and fixing at least part of the second end, so that the entire flexible PCB forms a stable, angle-specific structure (such as Figure 3 and Figure 4 as shown) after bending, greatly improving the consistency and structural stability of product assembly.

[0049] In addition, the support structure can stagger the signal connection part and the imaging part in space, achieving high-density integration in extremely narrow space. The support of the longitudinal support seat to the second end can also reduce the direct tension on the solder joints when the wire is plugged or shaken, thereby significantly improving the connection reliability and service life of the entire camera assembly during frequent plugging or motion.

[0050] The size of the support seat 60 is matched with the size of the lens 10.

[0051] The embodiment of the present specification realizes compact bending and spatial folding through the support seat 60, and enables the entire camera assembly to be embedded in the narrow front end of an endoscope or the like with the smallest form, which is a key structural guarantee for realizing the high performance and miniaturization of the assembly.

[0052] Specifically, in the embodiment of the present specification, the sum of the connection lines arranged on the first side and the connection lines arranged on the second side is at least 12, and in addition to the above-mentioned analog power supply connection line (VDDA) and digital power supply connection line (VDD), the 12 connection lines further comprise at least a clock connection line (SCL) and a data connection line (SDA).

[0053] By configuring at least 12 connection lines, necessary and complete high-speed data transmission channels are provided for the megapixel level image lens, ensuring that massive image data can be transmitted from the lens end to the processing end in a low delay and low error rate manner. Moreover, the necessary multiple lines are distributed on both sides of the flexible PCB, fully exploiting the three-dimensional wiring space of the flexible PCB, overcoming the problem that all lines cannot be accommodated on one side, and improving the space utilization efficiency.

[0054] In the embodiments of the present specification, preferably, the first capacitor 31 and / or the second capacitor 32 is a patch type multilayer ceramic capacitor; the pixels of the lens 1 are greater than or equal to 1 million pixels.

[0055] The patch type multilayer ceramic capacitor has the characteristics of small volume, low equivalent series resistance, excellent high-frequency response characteristics, and is particularly suitable for use in circuits with extremely limited space and the need for fast response to filter out high-frequency noise; and the patch type connection method can facilitate the assembly of the camera assembly provided by the embodiments of the present specification.

[0056] The embodiments of the present specification integrate the decoupling filtering function and the space folding structure, so that the megapixel level endoscope can obtain noise-free, high-stability high-definition images while maintaining its slim shape.

[0057] The embodiments of the present specification also provide an endoscope comprising a camera assembly provided by the above embodiments.

[0058] It should be noted that in the embodiments of the present specification, the use of the terms "comprising" or "including" to describe combinations of elements, components, parts or steps herein is also intended to encompass embodiments consisting essentially of those elements, components, parts or steps. Here, the use of the term "may" is intended to mean that any described attribute is optional. Multiple elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step can be divided into separate multiple elements, components, parts or steps. The disclosure of "one" or "an" to describe an element, component, part or step does not exclude other elements, components, parts or steps.

[0059] Each of the embodiments in the present specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. The above embodiments are only for illustrating the technical concepts and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A camera assembly, characterized in that, The camera module comprises a lens (10), a flexible PCB (20), a capacitor (30) and a wire (40); The flexible PCB (20) comprises a first end (21) and a second end (22), and the flexible PCB (20) is provided with power connection lines; The lens (10) is connected to the first end (21) of the flexible PCB (20), and the wire (40) is connected to the second end (22) of the flexible PCB (20) for connection with external equipment; The capacitor (30) comprises a first capacitor (31) and a second capacitor (32), the first capacitor (31) is connected to a digital power connection line corresponding to the digital power supply of the lens (10), and the second capacitor (32) is connected to an analog power connection line corresponding to the analog power supply of the lens (10).

2. The camera assembly of claim 1, wherein, The lens (10) comprises a digital power supply pin and an analog power supply pin, the digital power supply pin is connected to the digital power connection line, and the analog power supply pin is connected to the analog power connection line.

3. The camera assembly of claim 2, wherein, The flexible PCB (20) comprises a first side and a second side, the digital power connection line and the analog power connection line are arranged on the first side, and the second side is provided with a reinforcing plate (60) close to the first end (21).

4. The camera assembly of claim 3, wherein, The first end (21) and the second end (22) are further provided with a bending guide (23).

5. The camera assembly of claim 4, wherein, The width of the bending guide (23) is less than the width of the first end (21) and / or the second end (22).

6. The camera assembly of claim 4, wherein, The support seat (50) comprises a transverse support seat and a longitudinal support seat connected to each other, the transverse support seat is arranged on the side of the second side close to the first end (21); The bending guide (23) is bent from the transverse support seat, and the longitudinal support seat is used for supporting at least part of the second end (22).

7. The camera assembly of claim 6, wherein, The size of the support seat (50) is matched with the size of the lens (10).

8. The camera assembly of claim 3, wherein, The sum of the connection lines arranged on the first side and the connection lines arranged on the second side is at least 12, and the 12 connection lines at least comprise a clock connection line and a data connection line.

9. The camera assembly of claim 1, wherein, The first capacitor (31) and / or the second capacitor (32) are patch type multilayer ceramic capacitors, and the pixels of the lens (10) are greater than or equal to 1 million pixels.

10. An endoscope characterized by comprising: The camera module comprises a lens (10), a flexible PCB (20), a capacitor (30) and a wire (40); The flexible PCB (20) comprises a first end (21) and a second end (22), and the flexible PCB (20) is provided with power connection lines; The lens (10) is connected to the first end (21) of the flexible PCB (20), and the wire (40) is connected to the second end (22) of the flexible PCB (20) for connection with external equipment; The capacitor (30) comprises a first capacitor (31) and a second capacitor (32), the first capacitor (31) is connected to a digital power connection line corresponding to the digital power supply of the lens (10), and the second capacitor (32) is connected to an analog power connection line corresponding to the analog power supply of the lens (10). The lens (10) comprises a digital power supply pin and an analog power supply pin, the digital power supply pin is connected to the digital power connection line, and the analog power supply pin is connected to the analog power connection line. The flexible PCB (20) comprises a first side and a second side, the digital power connection line and the analog power connection line are arranged on the first side, and the second side is provided with a reinforcing plate (60) close to the first end (21). The first end (21) and the second end (22) are further provided with a bending guide (23). The width of the bending guide (23) is less than the width of the first end (21) and / or the second end (22). The support seat (50) comprises a transverse support seat and a longitudinal support seat connected to each other, the transverse support seat is arranged on the side of the second side close to the first end (21); The bending guide (23) is bent from the transverse support seat, and the longitudinal support seat is used for supporting at least part of the second end (22). The size of the support seat (50) is matched with the size of the lens (10). The sum of the connection lines arranged on the first side and the connection lines arranged on the second side is at least 12, and the 12 connection lines at least comprise a clock connection line and a data connection line. The first capacitor (31) and / or the second capacitor (32) are patch type multilayer ceramic capacitors, and the pixels of the lens (10) are greater than or equal to 1 million pixels. The camera module comprises a lens (10), a flexible PCB (20), a capacitor (30) and a wire (40); The flexible PCB (20) comprises a first end (21) and a second end (22), and the flexible PCB (20) is provided with power connection lines; The lens (10) is connected to the first end (21) of the flexible PCB (20), and the wire (40) is connected to the second end (22) of the flexible PCB (20) for connection with external equipment; The capacitor (30) comprises a first capacitor (31) and a second capacitor (32), the first capacitor (31) is connected to a digital power connection line corresponding to the digital power supply of the lens (10), and the second capacitor (32) is connected to an analog power connection line corresponding to the analog power supply of the lens (10). The lens (10) comprises a digital power supply pin and an analog power supply pin, the digital power supply pin is connected to the digital power connection line, and the analog power supply pin is connected to the analog power connection line. The flexible PCB (20) comprises a first side and a second side, the digital power connection line and the analog power connection line are arranged on the first side, and the second side is provided with a reinforcing plate (60) close to the first end (21). The first end (21) and the second end (22) are further provided with a bending guide (23). The width of the bending guide (23) is less than the width of the first end (21) and / or the second end (22). The support seat (50) comprises a transverse support seat and a longitudinal support seat connected to each other, the transverse support seat is arranged on the side of the second side close to the first end (21); The bending guide (23) is bent from the transverse support seat, and the longitudinal support seat is used for supporting at least part of the second end (22). The size of the support seat (50) is matched with the size of the lens (10). The sum of the connection lines arranged on the first side and the connection lines arranged on the second side is at least 12, and the 12 connection lines at least comprise a clock connection line and a data connection line. The first capacitor (31) and / or the second capacitor (32) are patch type multilayer ceramic capacitors, and the pixels of the lens (10) are greater than or equal to 1 million pixels.

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