A lens module and an endoscope using the same

Abstract

The utility model discloses a lens module and use the endoscope of this lens module, and the lens module includes the lens, and the lens includes the camera surface and sets up the connecting face opposite at camera surface, and one side of connecting face is provided with the PCB board, and the PCB board is provided with two connecting frames in the side to the lens, and the connecting frame is provided with LED lamp in the end away from the PCB board, and the lens and LED lamp all are electrically connected with the PCB board. The endoscope includes the cylindrical casing, and the casing is provided with the lens module channel along the axial direction, and the lens module channel extends from the first plane to the middle part of casing, and the both sides of lens module channel are provided with an LED channel along the axial direction of casing, and the casing is provided with the working channel along the axial direction. The utility model discloses the lens and the PCB board staggered layout and the avoiding slot of T shape PCB board can be located at the retaining wall between the lens module channel and working channel, can avoid the position of working channel that PCB board occupies, guarantees the space of the lens module channel and working channel of endoscope.

Description

Technical Field

[0001] This utility model relates to the field of endoscopes, and more particularly to a lens module and an endoscope using the lens module. Background Technology

[0002] As an important visual diagnostic and therapeutic tool, the performance and structural design of endoscopes are receiving increasing attention. The endoscope's tip houses the lens and LED light, with a pre-installed working channel. To meet design requirements, the outer diameter of the tip should be as small as possible, while the working channel should be as large as possible, but the overall structure must also have sufficient strength to avoid excessively thin areas that could affect its normal use. Furthermore, current technologies often employ independently distributed LED lights or rely on wiring harnesses, resulting in low positioning accuracy, low assembly efficiency, and limitations in automated production. Therefore, designing a lens module and endoscope that can meet these requirements through the layout of the lens, LED light, and working channel is a pressing issue that needs to be addressed. Utility Model Content

[0003] The purpose of this utility model is to provide a lens module that solves or partially solves the above-mentioned technical problems and an endoscope using the lens module.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A lens module includes a lens, the lens including an image-facing surface and a connecting surface disposed opposite to the image-facing surface. A T-shaped PCB board is disposed on one side of the connecting surface. Two connecting brackets are vertically disposed on the side of the PCB board facing the lens. The two connecting brackets are symmetrically disposed on both sides of the lens. The connecting brackets are perpendicular to the PCB board. Each connecting bracket has an LED light disposed at its end away from the PCB board. The lens and the LED light are electrically connected to the PCB board by means of surface mount technology.

[0005] Preferably, a slot is formed on the outer surface of the connector, and a wire is provided in the slot, through which the LED light is electrically connected to the PCB board.

[0006] Preferably, the connecting frame is a square cylindrical structure.

[0007] Preferably, the middle portion of each connecting bracket is recessed away from the sides of the lens to form a U-shaped structure.

[0008] Preferably, the PCB board includes a base extending in a transverse direction and an extension extending in a longitudinal direction. The base has a first arm end and a second arm end located on both sides of the extension and used to connect the connecting frame. The extension has a third arm end away from the base, and one end of the lens extends beyond the third arm end.

[0009] Preferably, a clearance groove is provided at the middle position of the base.

[0010] Preferably, the PCB board is a flexible PCB board, and the PCB board extends outward on one side or the opposite side of the extension to form a bent portion. The bent portion is integrally connected to the base, and the bent portion bends downward at the connection with the base so that the bent portion is perpendicular to the base.

[0011] Preferably, the PCB board is provided with a printed circuit, which is electrically connected to the lens and the LED, and the bent portion is soldered to the wire through a solder pad provided on the bent portion.

[0012] Preferably, a reinforcing plate is provided on one side of the PCB board, and the shape of the reinforcing plate matches the shape of the PCB board.

[0013] An endoscope includes the lens module described above, comprising a cylindrical housing with a working surface and a bottom surface. The working surface includes a first plane and a second plane, the first plane being perpendicular to the housing axis and the second plane being inclined to the housing axis. The housing has an axially arranged lens module channel for placing the lens, the lens module channel having a square cross-section, and extending from the first plane towards the center of the housing. LED channels for placing LED lights are arranged on both sides of the lens module channel along the housing axis, the LED channels having a square cross-section. The housing also has an axially arranged working channel extending from the second plane towards the center of the housing, the working channel having a circular cross-section. The working channel is located below the lens module channel.

[0014] The beneficial effects of this utility model are as follows: When installing the lens module, the lens and PCB board are staggered, and the clearance groove of the T-shaped PCB board can be located at the barrier between the lens module channel and the working channel. This avoids the PCB board occupying the working channel, ensuring the space of the endoscope's lens module channel and working channel, and also ensuring structural strength. By setting a connecting bracket to assemble the connecting bracket 5 and the LED light 6 into an integrated structure, it is easier for the machine to automatically position and install, which is conducive to improving production efficiency and assembly consistency, and is suitable for large-scale production applications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of one embodiment of the lens module of this utility model; Figure 2 yes Figure 1 A schematic diagram of the side view structure; Figure 3 yes Figure 1 A top-view structural diagram; Figure 4 This is a schematic diagram of the structure of one embodiment of the lens module of this utility model; Figure 5 yes Figure 4 A perspective structural diagram of the central connecting frame; Figure 6 This is a schematic diagram of the structure of one embodiment of the lens module of this utility model; Figure 7 yes Figure 6 Schematic diagram of the PCB board structure; Figure 8 This is a structural schematic diagram of one embodiment of the PCB board of this utility model; Figure 9 This is a schematic diagram of the structure of the endoscope housing of this utility model; Figure 10 yes Figure 9 A schematic diagram of the side view structure; Figure 11 yes Figure 9 A front view structural diagram; Figure 12 yes Figure 9 A schematic diagram of the rear view structure; Figure 13 This is a schematic diagram of the structure of the endoscope housing of this utility model; Among them, there is a lens 1, a camera surface 2, a connecting surface 3, a PCB board 4, a connecting bracket 5, an LED light 6, a base 7, an extension 8, a clearance groove 9, a first arm end 10, a second arm end 11, a third arm end 12, a housing 13, a working surface 14, a bottom surface 15, a first plane 16, a second plane 17, a lens module channel 18, an LED channel 19, a working channel 20, a through hole 21, a reinforcing plate 22, and a bending part 23. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.

[0017] In the description of this utility model, it should be noted that the terms "inner", "outer", "upper", "lower", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] like Figures 1 to 13 As shown, this utility model provides a lens module, which includes a lens 1. The lens 1 has a square cross-section and includes an imaging surface 2 and a connecting surface 3 disposed on the opposite side of the imaging surface 2. A PCB board 4 is disposed on one side of the connecting surface 3, and two connecting brackets 5 are disposed on the side of the PCB board 4 facing the lens 1. The two connecting brackets 5 are symmetrically disposed on both sides of the lens 1, and the connecting brackets 5 are perpendicular to the PCB board 4. Each connecting bracket 5 has an LED light 6 disposed at the end away from the PCB board 4, and the height of the LED light 6 is less than the height of the lens 1. The LED light 6 has a square cross-section, and the lens 1 and the PCB board 4 are electrically connected by a surface mount method.

[0019] One embodiment of the connecting frame 5 of this utility model is as follows: the middle part of each connecting frame 5 is recessed in the direction away from the sides of the lens, forming a U-shaped structure. The connecting frame 5 not only increases the height of the LED lamp 6, but also reduces the overall weight of the lens module. Compared with the traditional LED lamp 6 wiring harness connection method, the connecting frame 5 and the LED lamp 6 are assembled into an integrated structure, which is more convenient for automated machine positioning and installation, and is conducive to improving production efficiency and assembly consistency, making it suitable for mass production applications. The LED lamp 6 is electrically connected to the PCB board 4 through wires (not shown). The two ends of the wires are soldered to the pins of the LED lamp 6 and the PCB board 4, respectively. The wires are arranged on the side of the connecting frame 5 near the lens 1 to avoid occupying space. The LED lamp 6 and the PCB board 4 are connected to the two ends of the connecting frame 5, and the connection method can be adhesive bonding or SMT surface mount technology, etc.

[0020] Another embodiment of the connector 5 of this utility model is as follows: the connector 5 has a square structure, and two through holes 21 are formed in the vertical direction of the connector 5. The LED lamp 6 is electrically connected to the PCB board 4 through the conductive material filled in the through holes 21. The conductive material can be common conductive materials such as metal powder or graphite; conduction is achieved by filling the through holes 21 with metal powder, which simplifies the soldering process and facilitates manufacturing. The LED lamp 6 and the PCB board 4 are respectively connected to the two ends of the connector 5, and the connection method can be adhesive bonding or SMT surface mount technology, etc., avoiding the position of the through holes 21.

[0021] The PCB board 4 is T-shaped and includes a base 7 extending in the lateral direction and an extension 8 extending in the longitudinal direction. The base 7 has a first arm end 10 and a second arm end 11 located on both sides of the extension 8 for connecting the connecting frame 5. The extension 8 has a third arm end 12 located away from the base 7.

[0022] In one embodiment of the PCB board 4 of this utility model, a clearance groove 9 is provided in the middle of the base 7, one end of the lens 1 extends out of the third arm end 12, and the other end of the lens 1 does not exceed the position of the clearance groove 9.

[0023] Another embodiment of the PCB board 4 of this utility model is as follows: the PCB board 4 can be a flexible and bendable PCB board 4. Specifically, the PCB board 4 extends outward on one side of the extension 8 or on the opposite side of the extension 8 to form a bending part 23. The bending part 23 is integrally connected with the base 7. The bending part 23 bends at the connection with the base 7 so that the bending part 23 is perpendicular to the base 7.

[0024] The PCB board 4 has printed circuits that connect to the lens 1 and the LED light 6. The bent part 23 is soldered to the wires via pads, which helps save internal space in the endoscope. A reinforcing plate 22 is provided on one side of the PCB board 4. The reinforcing plate 22 is attached to the PCB board 4. Specifically, the reinforcing plate 22 can be made of materials such as metal plates or rigid plastic plates to increase the strength of the PCB board 4. The reinforcing plate 22 can be fitted to the shape of the PCB board 4.

[0025] This utility model also provides an endoscope, which includes the lens module described above, and a cylindrical housing 13. The housing 13 includes a working surface 14 and a bottom surface 15. The working surface 14 includes a first plane 16 and a second plane 17. The first plane 16 is perpendicular to the axis of the housing 13, and the second plane 17 is inclined to the axis of the housing 13 to form a guide head structure.

[0026] The housing 13 has a lens module channel 18 arranged axially. The lens module channel 18 has a square cross-section and extends from the first plane 16 towards the middle of the housing 13. The lens 1 is placed inside the lens module channel 18. LED channels 19 are arranged on both sides of the lens module channel 18 along the axial direction of the housing 13. The ends of the LED channels extend towards the first plane 16 and form a barrier between the ends of the LED channels 19 and the lens module channel 18, separating them. The LED channel 19 has a square cross-section. The LED light 6 and the connecting bracket 5 are arranged inside the LED channel 19, and the LED light 6 is located at the end of the LED channel 19.

[0027] The housing 13 is provided with a working channel 20 for placing instruments along the axial direction. The working channel 20 extends from the second plane 17 to the middle of the housing 13. The cross-section of the working channel 20 is circular. The working channel 20 is located below the lens module channel 18. A retaining wall is formed between the lens module channel 18 and the working channel 20, which can ensure the strength of the structure to a certain extent.

[0028] The lens module is installed into the housing 13. The lens 1 and the PCB board 4 are staggered. The clearance groove 9 of the PCB board 4 is located at the barrier between the lens module channel 18 and the working channel 20, so as to avoid the PCB board 4 occupying the position of the working channel 20 and ensure the space of the endoscope lens module channel 18 and the working channel 20.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A lens module comprising a lens, characterized in that: The lens includes a camera surface and a connecting surface opposite the camera surface. A T-shaped PCB board is provided on one side of the connecting surface. Two connecting brackets are vertically arranged on the side of the PCB board facing the lens. The two connecting brackets are symmetrically arranged on both sides of the lens. The connecting brackets are perpendicular to the PCB board. Each connecting bracket has an LED light at its end away from the PCB board. The lens and the LED light are electrically connected to the PCB board.

2. The lens module according to claim 1, characterized in that: The connecting frame has a square structure, and two through holes are opened in the interior of the connecting frame along the vertical direction. The LED light is electrically connected to the PCB board through the conductive material filled in the through holes.

3. The lens module according to claim 2, characterized in that: The middle part of each connector is recessed in a direction away from the sides of the lens to form a U-shaped structure. The LED light is electrically connected to the PCB board through wires, which are arranged on the side of the connector close to the lens.

4. The lens module according to claim 2, characterized in that: The PCB board includes a base extending in a transverse direction and an extension extending in a longitudinal direction. The base has a first arm end and a second arm end located on both sides of the extension and used to connect the connecting frame. The extension has a third arm end away from the base, and one end of the lens extends out of the third arm end.

5. The lens module according to claim 4, characterized in that: An avoidance groove is provided in the middle of the base.

6. The lens module according to claim 4, characterized in that: The PCB board is a flexible PCB board. The PCB board extends outward on one side or the opposite side of the extension to form a bent portion. The bent portion is integrally connected to the base. The bent portion bends downward at the connection with the base so that the bent portion is perpendicular to the base.

7. The lens module according to claim 6, characterized in that: The PCB board is provided with a printed circuit, which is electrically connected to the lens and the LED light. The bent part is soldered to the wire through the solder pads provided on the bent part.

8. The lens module according to claim 5, characterized in that: A reinforcing plate is provided on one side of the PCB board, and the shape of the reinforcing plate matches the shape of the PCB board.

9. An endoscope comprising the lens module as described in any one of claims 1-8, characterized in that: It includes a cylindrical housing with a working surface and a bottom surface. The working surface includes a first plane and a second plane. The first plane is perpendicular to the axis of the housing, and the second plane is inclined to the axis of the housing. A lens module channel is provided along the axial direction of the housing. The lens module channel has a square cross-section and extends from the first plane towards the middle of the housing. The lens is disposed within the lens module channel. LED channels are provided on both sides of the lens module channel along the axial direction of the housing. The LED channels have a square cross-section and house the LED light and the connecting bracket. A working channel is provided along the axial direction of the housing. The working channel extends from the second plane towards the middle of the housing and has a circular cross-section. The working channel is located below the lens module channel.

10. The endoscope according to claim 9, characterized in that: The lens module channel and the LED light channel, as well as the lens module channel and the working channel, are separated by partition walls.

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