Positioning wire clamp and endoscope camera assembly and endoscope using same

Abstract

The utility model provides a positioning wire clamp and an endoscope camera assembly and an endoscope using the same, the positioning wire clamp is provided with a plurality of threading holes correspondingly communicated with electric connection parts on a PCB, and before welding, a plurality of core wires on a coaxial line can sequentially pass through the plurality of threading holes to be pre-positioned with the corresponding electric connection parts on the PCB; according to the endoscope camera assembly, the core wires and the electric connection parts are arranged on the PCB, alignment electric connection between the core wires and the electric connection parts is facilitated, then the multiple core wires on the axis are in one-to-one alignment electric connection with the corresponding electric connection parts on the PCB, the welding difficulty is reduced through the design, automatic welding machining can be conveniently achieved, the labor intensity of workers in the production process of the endoscope camera assembly can be effectively reduced, and the production efficiency is improved. The production efficiency of the endoscope camera assembly is improved, and the endoscope camera assembly has a good application prospect.

Description

TECHNICAL FIELD

[0001] The utility model relates to endoscope technical field especially, it is a kind of positioning wire clamp and its application endoscope camera head subassembly and endoscope. BACKGROUND

[0002] As high-end medical instrument product, the main working principle of electronic endoscope is that handle controls front end sheath tube to enter human natural cavity, via front end optical lens module to gather the image information of human body organ, provides intuitive diagnostic information for doctor.Due to its function and the uniqueness of application scene, endoscope sheath tube front end diameter requirement is made to be smaller and smaller, and new challenge is proposed to the process innovation of optical lens module.

[0003] The existing electronic endoscope camera head module is connected with tail control unit by multiple independent signal connection coaxial wire core lines.In the process of actually producing endoscope, the multiple coaxial wire core lines are welded on the PCB board of camera head module by artificial manual soldering way one by one, but due to the small size of endoscope camera head module, generally only 2 to 3mm size, soldering point size is extremely small and soldering point spacing is close, greatly increase the operation difficulty of artificial welding, high artificial labor intensity, lead to high cost, low production efficiency.

[0004] Therefore, to provide an endoscope camera head module reducing welding difficulty and improving production efficiency is a technical problem to be solved by the person skilled in the art. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the insufficient of prior art, provide a kind of positioning wire clamp, reduce welding difficulty, and it is convenient to realize automatic welding processing, can effectively reduce the artificial labor intensity in the production process of endoscope camera head subassembly, improve the production efficiency of endoscope camera head subassembly, with good application prospect.

[0006] A kind of positioning wire clamp, it is applied to endoscope, the endoscope at least includes PCB board and coaxial line, the PCB board is arranged with multiple electrical connections, the coaxial line is equipped with multiple core lines, the core line can be respectively corresponding to the electrical connection multiple electrical connections, the positioning wire clamp is located at the side of the PCB board close to the electrical connection, and multiple threading holes are set on it, which are communicated with the corresponding electrical connection;

[0007] Multiple core lines can pass through multiple threading holes in turn, and are one-to-one aligned with the corresponding electrical connection.

[0008] The positioning wire clamp described above, two columns of threading holes are provided on the positioning wire clamp in parallel along the length direction.

[0009] The positioning line clamp as claimed in any one of the preceding claims, wherein two rows of the wire passing holes are arranged on the side of the positioning line clamp.

[0010] The positioning line clamp as claimed in any one of the preceding claims, wherein two rows of the wire passing holes are arranged on the side of the positioning line clamp.

[0011] The positioning line clamp as claimed in any one of the preceding claims, wherein the number of the wire passing holes is 10-14.

[0012] The positioning line clamp as claimed in any one of the preceding claims, wherein the positioning line clamp is provided with a chamfered portion near the edge of the electrical connection portion, the chamfered portion being inclined and communicating with the wire passing hole.

[0013] The core wire end is bent and extended to the chamfered portion after passing through the wire passing hole, so as to be aligned and welded with the electrical connection portion.

[0014] The positioning line clamp as claimed in any one of the preceding claims, wherein the PCB is provided with an electronic component on one side of the electrical connection portion, and the positioning line clamp is provided with a recessed accommodation groove for accommodating the electronic component.

[0015] The positioning line clamp as claimed in any one of the preceding claims, wherein the diameter of the wire passing hole is adapted to the outer diameter of the core wire, and the core wire is fixedly arranged in the wire passing hole.

[0016] Another object of the present application is to provide an endoscope camera assembly, which at least comprises a camera module, a PCB, a coaxial wire and the positioning line clamp, and the camera module is arranged on the other side of the PCB away from the electrical connection portion.

[0017] A third object of the present application is to provide an endoscope comprising the endoscope camera assembly.

[0018] Compared with the prior art, the endoscope camera assembly has the following advantages:

[0019] The positioning line clamp, the endoscope camera assembly and the endoscope provided by the present application have the following advantages: BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1A structure schematic view of an endoscope camera head assembly in the embodiment of the utility model;

[0021] Figure 2 An exploded schematic view of an endoscope camera head assembly in the embodiment of the utility model;

[0022] Figure 3 A structure schematic view of a positioning wire clamp in the embodiment of the utility model;

[0023] Figure 4 A structure schematic view of another view angle of a positioning wire clamp in the embodiment of the utility model;

[0024] Figure 5 A structure schematic view of a PCB in the embodiment of the utility model;

[0025] Figure 6 A structure schematic view of an endoscope camera head assembly in the embodiment of the utility model is applied to an endoscope. Specific embodiments

[0026] In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0027] An endoscope camera head assembly, comprising a camera module 1, a PCB 2, a coaxial wire 3, a positioning wire clamp 4;The camera module 1 is electrically connected to one side of the PCB 2, and a plurality of electric connection parts 21 are arranged on the other side;The coaxial wire 3 includes a plurality of core wires 31 that can be electrically connected to a plurality of electric connection parts 21 respectively;The positioning wire clamp 4 is arranged on the side of the PCB 2 close to the electric connection part 21, and a plurality of wire holes 41 are formed on the positioning wire clamp 4 and communicated with the electric connection part 21;A plurality of core wires 31 can pass through a plurality of wire holes 41 in turn and be electrically connected to the corresponding electric connection part 21 one by one.

[0028] The endoscope camera assembly of the embodiment of the application comprises a camera module, a PCB board, a coaxial line and a positioning wire clamp. The positioning wire clamp is arranged between the coaxial line and the PCB board, and a plurality of wire holes corresponding to the electrical connection parts on the PCB board are arranged on the positioning wire clamp. Before welding, the plurality of cores of the coaxial line can be sequentially threaded through the plurality of wire holes to be pre-positioned with the corresponding electrical connection parts on the PCB board, so that the cores and the electrical connection parts are electrically connected in position. Then, the plurality of cores of the coaxial line are electrically connected in position with the corresponding electrical connection parts on the PCB board. This design reduces the welding difficulty and facilitates automatic welding processing. The labor intensity in the production process of the endoscope camera assembly is effectively reduced, the production efficiency of the endoscope camera assembly is improved, and the design has a good application prospect.

[0029] The positioning wire clamp of the embodiment of the application comprises a plurality of wire holes corresponding to the electrical connection parts on the PCB board. Before welding, the plurality of cores of the coaxial line can be sequentially threaded through the plurality of wire holes to be pre-positioned with the corresponding electrical connection parts on the PCB board, so that the cores and the electrical connection parts are electrically connected in position. Then, the plurality of cores of the coaxial line are electrically connected in position with the corresponding electrical connection parts on the PCB board. This design reduces the welding difficulty and facilitates automatic welding processing. The labor intensity in the production process of the endoscope camera assembly is effectively reduced, the production efficiency of the endoscope camera assembly is improved, and the design has a good application prospect.

[0030] The PCB board 2 of the embodiment of the application comprises two rows of electrical connection parts 21 arranged side by side on the side of the camera module 1 away from the PCB board 2. The mounting area 20 for mounting electronic components 22 is arranged between the two rows of electrical connection parts 21 on the PCB board 2. In a specific application, the plurality of electrical connection parts 21 are pads on the PCB, and the electronic components 22 are capacitor devices. The structure of the PCB board 2 is optimized. The two rows of pads are arranged in a small-size PCB board 2, and the capacitor devices are arranged in the middle. This design effectively realizes miniaturization and integration design, which is conducive to the development of the slim endoscope camera module.

[0031] As a preferred embodiment, the positioning wire clamp 4 comprises two rows of wire holes 41 arranged side by side. Further preferably, the two rows of wire holes 41 are arranged side by side along the length direction of the positioning wire clamp 4 and are arranged on the side of the positioning wire clamp 4. The positioning wire clamp 4 is provided with a recessed accommodation groove 42 on the side close to the mounting area 20 to accommodate the electronic components 22. The size and shape of the wire clamp device are adjusted and avoided from the capacitor devices according to the design of the PCB board. The wire clamp device is designed to avoid the capacitor position and arrange and fix the coaxial line.

[0032] As a further limitation, the number of threading holes 41 is 10-14. In the specific embodiment of the present application, the wire clamp device has 11 threading holes corresponding to the coaxial lines, which can fix the arrangement of the wire sequence. The multiple core wires of the coaxial lines are used for different signal connections of the endoscope camera head module. The multiple core wires are connected one by one with the multiple rows of conductive connection parts, which facilitates the transmission of signals and the like. The number of core wires can be designed and selected according to the model and use demand of the endoscope camera head module, which is not specifically limited in the present application.

[0033] As a further preferred, the positioning wire clamp 4 is provided with a chamfering part 43 near the edge of the electrical connection part 21, which is inclined and communicates with the threading hole 41. After the end of the core wire 31 is threaded out of the threading hole 41, it is bent and extended to the chamfering part 43 for alignment welding with the electrical connection part 21. This design optimizes the structure, facilitates welding, facilitates automation processing, effectively reduces the labor intensity in the production process of the endoscope camera assembly, and improves the production efficiency of the endoscope camera assembly.

[0034] As a further preferred, the aperture of the threading hole 41 is adapted to the outer diameter of the core wire 31, and the core wire 31 is fixed in the threading hole 41 by UV glue. The core wire 31 and the electrical connection part 21 are connected by laser welding. The coaxial line is fixed to the special jig of the special equipment by UV glue after being threaded onto the wire clamp. The wire clamp and the PCB pad are aligned and overlapped, and then the solder paste is applied to the pad and laser welding is performed to complete the connection. This design can reduce the welding difficulty, and does not need to weld one by one manually, thereby reducing the cost of the endoscope.

[0035] As a further limitation, the side of the PCB board 2 away from the electrical connection part 21 is the installation surface of the camera module 1. The size of the PCB board 2 is: length 2.6-3.0 mm, width 2.0-2.5 mm. The camera module 1 includes a lens 11 and an image sensor 12. The image sensor 12 is SMT patch assembled to the PCB board 2, and the lens 11 is assembled to the PCB board 2 by glue. One side of the PCB board of the present application is provided with the camera module, and the other side is connected with the coaxial line. This design reduces the size of the camera module, which is conducive to the development of the slim endoscope camera module.

[0036] Further, the coaxial line 3 includes the core wire 31, a coaxial insulator skin covering the periphery of the core wire 31, and a coaxial shielding layer skin covering the periphery of the coaxial insulator, as shown in Figure 6 The other end of the coaxial line 3 is connected with the PCB, and the multiple core wires 31 are electrically connected with the test module.

[0037] The welding process of one embodiment of the endoscope camera assembly of the present application includes the following steps:

[0038] S1: sequentially pass the plurality of core wires 31 of the coaxial cable 3 through the wire passing holes 41 on the positioning wire clamp 4 and fix them;

[0039] S2: align the wire passing holes 41 on the positioning wire clamp 4 with the electrical connection parts 21 on the PCB board 2;

[0040] S3: electrically connect the ends of the core wires 41 with the electrical connection parts 21.

[0041] In order to improve the assembly efficiency, as a further preferred, before the coaxial cable passes through the positioning wire clamp, the outer sheath of the coaxial cable 3 can be cut by a machine to expose the plurality of core wires 41 of the coaxial cable 3, and then the core wires are sequentially passed through the wire passing holes by manual operation, and the core wires and the positioning wire clamp are fixed by UV glue, and then the outer sheath of the core wires 31 is cut to expose the conductors at the ends of the core wires 31 for cutting the wires.

[0042] As a further limitation, the step of "electrically connecting the ends of the core wires 41 with the electrical connection parts 21" specifically includes: tin plating on the plurality of electrical connection parts 21, and welding the ends of the core wires 41 with the electrical connection parts 21 by laser welding process, which can be performed on an automatic welding machine. The present application can be automatically stripped, cut, tinned, laser welded, sealed, and automatically welded to improve welding efficiency, reduce cost, and promote disposable endoscopy.

[0043] The present application provides an endoscope comprising the endoscope camera assembly described above, which reduces the welding difficulty and facilitates automatic welding processing, can effectively reduce the labor intensity in the production process of the endoscope camera assembly, improve the production efficiency of the endoscope camera assembly, and has good application prospect.

[0044] The above is the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications are also considered as the protection scope of the present application.

Claims

1. A positioning clip (4) applied to an endoscope, the endoscope comprising at least a PCB board (2) and a coaxial line (3), the PCB board (2) being arranged with a plurality of electrical connection portions (21), the coaxial line (3) being provided with a plurality of core wires (31) capable of being electrically connected to the plurality of electrical connection portions (21) respectively, characterized in that, The positioning wire clamp (4) is arranged on the side of the PCB (2) close to the electrical connection part (21), and a plurality of wire holes (41) corresponding to the electrical connection part (21) are arranged on the positioning wire clamp (4). The plurality of core wires (31) can pass through the plurality of wire holes (41) in sequence and are electrically connected to the corresponding electrical connection part (21) one by one.

2. The positioning clamp (4) according to claim 1, characterized in that: The positioning wire clamp (4) is provided with two rows of wire holes (41) along the length direction of the positioning wire clamp (4).

3. The positioning clamp (4) according to claim 2, characterized in that: The two rows of wire holes (41) are arranged on the side of the positioning wire clamp (4).

4. The positioning clamp (4) according to claim 2 or 3, characterized in that: The PCB (2) is provided with two rows of electrical connection parts (21) corresponding to the two rows of wire holes (41), and the PCB (2) is provided with a mounting area (20) between the two rows of electrical connection parts (21) for mounting electronic components (22).

5. The positioning clamp (4) according to any one of claims 1-3, characterized in that: The number of wire holes (41) is 10-14.

6. The positioning clamp (4) according to any one of claims 1-3, characterized in that: The positioning wire clamp (4) is provided with a chamfered part (43) close to the edge of the electrical connection part (21) and communicating with the wire hole (41). The core wire (31) is bent and extended to the chamfered part (43) after passing through the wire hole (41) to be welded to the electrical connection part (21).

7. The positioning clamp (4) according to claim 1, characterized in that: The PCB (2) is provided with an electronic component (22) on the side of the electrical connection part (21), and the positioning wire clamp (4) is provided with a recessed slot (42) for accommodating the electronic component (22).

8. The positioning clamp (4) according to claim 1, characterized in that: The aperture of the wire hole (41) is adapted to the outer diameter of the core wire (31), and the core wire (31) is fixedly arranged in the wire hole (41).

9. An endoscope camera assembly, comprising: The camera module (1), the PCB (2), the coaxial wire (3), and the positioning wire clamp (4) of any one of claims 1-8 are arranged on the side of the PCB (2) away from the electrical connection part (21).

10. An endoscope characterized by comprising: The endoscope camera assembly of claim 9 is provided.

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