WO2018040771A1

WO2018040771A1 - Terminal docking structure, connector and endoscope system

Info

Publication number: WO2018040771A1
Application number: PCT/CN2017/093458
Authority: WO
Inventors: 徐科端; 高扬; 吴拱安
Original assignee: 深圳开立生物医疗科技股份有限公司
Priority date: 2016-08-31
Filing date: 2017-07-19
Publication date: 2018-03-08
Also published as: CN106299800A

Abstract

Provided are a terminal docking structure, a connector and an endoscope system. The terminal docking structure (600) comprises a base (610), a first terminal (620), a sleeve (630) and a first spring (640), wherein the first terminal (620) is arranged between the base (610) and the sleeve (630), and the first spring (640) is arranged between the base (610) and the first terminal (620); when a second terminal (511) enters the sleeve (630) and docks with the first terminal (620), the first terminal (620) can move relative to the base (610) and the sleeve (630); and when the second terminal (511) withdraws from the sleeve (630) and is separated from the first terminal (620), the first terminal (620) can reset via the first spring (640). The second terminal (511) is a docking terminal corresponding to the first terminal (620). The terminal docking structure (600) can solve the problem of an optical fibre docking terminal being damaged by an excessive force when a plug (510) is plugged into a socket (520).

Description

Terminal docking structure, connector and endoscope system

This application claims priority to Chinese Patent Application No. 201610797359.5, entitled "Terminal Docking Structure, Connector and Endoscope System", filed on August 31, 2016, the entire contents of which are hereby incorporated by reference. The citations are incorporated herein by reference.

Technical field

The present invention relates to the field of endoscope technology, and in particular, to a terminal docking structure, a connector, and an endoscope system.

Background technique

The electronic endoscope is a medical electronic optical instrument that can be inserted into the body cavity and the internal cavity of the organ for direct observation, diagnosis and treatment, and integrates high-precision techniques such as light collection, machine and electricity. It uses a very small size electronic imaging component, Charge Coupled Device (CCD), to image the object to be observed through a tiny objective optical system onto the CCD, and then receive the image through the guided fiber bundle. The signal is sent to the image processing system, and finally the processed image is output on the monitor for observation and diagnosis by the doctor.

As shown in FIG. 1, the prior art electronic endoscope system includes an endoscope 100, and a light source device 200 and/or a processor device 300 detachably coupled to the endoscope 100. The light source device 200 provides a light source for the endoscope 100, and the processor device 300 provides processing of the control signal and/or image signal to the endoscope 100. Generally, the endoscope 100 is independent of the light source device 200 and/or the processor device 300. To implement the connection of the endoscope 100 to the light source device 200 and/or the processor device 300, it is necessary to pass through the connector 400. The endoscope 100 is coupled to the light source device 200 and/or the processor device 300.

The conventional connector 400 includes a split type connector and an integral connector. The so-called split type connector refers to a light source and a control signal and/or an image signal respectively adopting different connectors. The integral connector refers to a light source and a control signal and/or Or the image signal uses the same connector. The connector 400 specifically includes: a plug 410 disposed at one end of the endoscope 100, and disposed on the light source device 200 and/or the processor device 300 Socket 420. Shown in Figure 1 is an integral connector, i.e., the light source and control signals and/or image signals are transmitted using the same plug 410 and the connector 400 of the same socket 420, and the socket 420 portion of the connector 400 is partially disposed. On the light source device 200, of course, the socket 420 can also be disposed on the processor device 300.

With the increasing popularity of high-definition video, high-definition image signals have high requirements on the transmission rate of transmission cables. At present, the image signals for endoscopes are gradually changed from cables to optical cables for transmission, that is, optical signals are transmitted, thereby satisfying Higher transmission rate requirements. To this end, the conventional metal butt terminal is also changed to a fiber optic docking terminal. Due to the vulnerability of the fiber optic docking terminal itself, when the plug and the socket are plugged together, if the force is too large, the two fiber optic docking terminals may be damaged due to excessive force, causing damage to the fiber optic docking terminal, so that the endoscope system is The image signal cannot be transmitted normally.

Summary of the invention

The embodiment of the invention provides a terminal docking structure, a connector and an endoscope system, and aims to solve the problem that the force of the fiber mating terminal is damaged due to excessive force when the plug and the socket are plugged.

A first aspect of the embodiment of the present invention provides a terminal docking structure, including: a base, a first terminal, a sleeve, and a first spring, wherein the first terminal is disposed between the base and the sleeve, The first spring is disposed between the base and the first terminal;

The first terminal is movable relative to the base and the sleeve when the second terminal enters the sleeve and abuts the first terminal; when the second terminal is withdrawn from the sleeve And being separated from the first terminal, the first terminal is reset by the first spring, and the second terminal is a docking terminal corresponding to the first terminal.

Optionally, the base includes: a base and a mounting seat, the mounting seat is provided with a first through hole adapted to one end of the first terminal, and the first terminal is nested at the first end a through hole and movable axially along the first through hole.

Optionally, a first protrusion is disposed in a middle portion of the first terminal, and one end of the first spring abuts the end surface of the mounting seat, and the other end abuts the end surface of the first protrusion.

Optionally, the sleeve is internally provided with a stepped hole, the stepped hole includes: a second through hole located at the bottom layer of the stepped hole, and a third through hole located at an upper layer of the stepped hole, the second pass Hole radius The inch is larger than the third through hole radius size;

The first protrusion, one end of the first terminal, and one end of the base are sequentially sleeved in the second through hole from the inside to the outside, and the other end of the first terminal is sleeved in the third through hole Inside.

Optionally, a bushing is disposed in the third through hole and sleeved at the other end of the first terminal, the bushing is configured to assist the first terminal and the first The two terminals are aligned when they are docked.

Optionally, a second spring is disposed between the base and the sleeve, and a second protrusion is disposed in a middle portion of the sleeve;

One end of the second spring is sleeved on the outer side of the mounting seat, and the end portion abuts against the end surface of the base;

The other end of the second spring is sleeved on the outer side of the sleeve, and the end portion abuts the second convex end surface.

Optionally, the base is provided with a locking piece having a semicircular inner diameter, and the locking block is used for fastening the second spring to the base.

Optionally, the first terminal and the second terminal are optical fiber terminals.

A second aspect of an embodiment of the present invention provides a connector, the connector being applied to an endoscope system, the endoscope system comprising: an endoscope, and a light source detachably coupled to the endoscope and/or Or a processor device; the connector being disposed between the endoscope and the light source and/or processor device for establishing a connection of the endoscope to the light source and/or processor device;

The connector includes: a plug disposed at one end of the endoscope, and a socket disposed on the light source and/or the processor device and adapted to the plug;

The terminal end of the plug is provided with a second terminal, and a corresponding terminal of the socket is provided with a terminal docking structure adapted to the second terminal and according to any one of the above;

The first terminal forms abutment with the second terminal when the plug is inserted into the socket.

Optionally, the connector is an integral endoscope connector.

A third aspect of the embodiments of the present invention provides an endoscope system including: an endoscope, and a light source and/or a processor device detachably coupled to the endoscope, the endoscope and the light source and The processor device establishes a connection through a connector that employs the connector of any of the above.

In the technical solution provided by the embodiment of the present invention, when the second terminal enters the sleeve and is docked with the first terminal, the first terminal is movable relative to the base and the sleeve; when the second terminal is extracted from the sleeve and When the first terminal is separated, the first terminal can be reset by the first spring, so the present invention is compared with the prior art. In the embodiment, the first terminal is movably disposed, and when the second terminal is stressed, the adaptive movement can be performed, thereby preventing the two fiber optic docking terminals from being damaged due to excessive force when the two fiber mating terminals are docked.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a perspective view of a prior art endoscope system;

2 is a perspective view of an endoscope system according to an embodiment of the present invention;

3 is an exploded perspective view of a terminal docking structure according to an embodiment of the present invention;

4 is a schematic cross-sectional view of a connector in accordance with an embodiment of the present invention;

Figure 5 is a partial enlarged view of A in Figure 4;

FIG. 6 is a partially enlarged cross-sectional view showing the terminal docking structure in the embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

As shown in FIG. 2, an electronic endoscope system according to an embodiment of the present invention includes an endoscope 100, and a light source device 200 and/or a processor device 300 detachably coupled to the endoscope 100. A connector 500 is provided between the endoscope 100 and the light source device 200 and/or the processor device 300 for establishing a connection of the endoscope 100 to the light source device 200 and/or the processor device 300. The connector 500 shown in FIG. 2 employs an integral connector, and the socket 520 is disposed on the light source device 200. Of course, the connector 500 can also be a split connector, or other types of connectors, which are not limited herein. The connector 500 specifically includes a plug 510 disposed at one end of the endoscope 100, and a socket 520 disposed on the light source device 200 and/or the processor device 300.

With the increasing popularity of high-definition video, high-definition image signals have high requirements on the transmission rate of transmission cables. At present, the image signals for endoscopes are gradually changed from cables to optical cables for transmission, that is, optical signals are transmitted, thereby satisfying Higher transmission rate requirements. Accordingly, the conventional electrical contact docking structure is also changed to the fiber terminal docking structure.

However, due to the inherent vulnerability of the fiber optic docking terminal, if the force is too large when the plug and the socket are plugged together, the two fiber optic docking terminals may be damaged due to excessive force when the two fiber mating terminals are docked, so that the endoscope is damaged. The image signal of the system cannot be transmitted normally.

Based on this, the embodiment of the present invention provides a terminal docking structure, which aims to alleviate the force generated by the two fiber mating terminals when docking, thereby reducing the damage to the fiber mating terminal.

As shown in FIG. 3, the terminal docking structure 600 is disposed on the socket 520, and includes a base 610, a first terminal 620, a sleeve 630, and a first spring 640. The first terminal 620 is disposed on the base 610 and Between the sleeves 630, a first spring 640 is disposed between the base 610 and the first terminal 620.

As shown in FIG. 4, a stepped boss 512 is disposed at the end of the plug 510. The stepped boss 512 is adapted to the socket 520, and includes: disposed on the end of the plug 510, and as the bottom layer of the stepped boss 512 a boss 512a, and a second boss 512b disposed on the first boss 512a as the upper layer of the step boss 512, and a second terminal 511 disposed on the end surface of the first boss 512a, the second terminal 511 and The first terminal 620 corresponds to each other.

When the second terminal 511 enters the sleeve 630 and abuts the first terminal 620, the first terminal 620 can move relative to the base 610 and the sleeve 630; when the second terminal 511 is withdrawn from the sleeve 630 and with the first terminal 620 When separated, the first terminal 620 can be reset by the first spring 640.

The terminal docking structure 600 of the embodiment of the present invention adopts a clever structural design, so that when the second terminal 511 is docked with the first terminal 620, the force generated by the second terminal 511 on the first terminal 620 is alleviated, thereby avoiding two fiber optic docking terminals. In the case of docking, the fiber mating terminal may be damaged due to excessive force.

It should be understood that the embodiment of the present invention is only an example of the fiber-optic docking terminal structure. The terminal docking structure is not limited to the fiber-optic mating terminal, and may be other types of docking terminals, such as electrical contact docking terminals, which are not limited herein.

As shown in FIG. 3 and FIG. 6, the base 610 includes a base 610a and a mounting base 610b. The base 610a and the mounting base 610b may be integrally formed or assembled and fixed, which is not limited herein.

In the embodiment of the present invention, a first through hole 611 is defined in the base 610, and one end of the first terminal 620 is nested in the first through hole 611 and can be along the first through hole. 611 axial movement.

The base 610 is fixedly disposed on the socket 520, and the first terminal 620 is movably disposed on the base 610. When the plug 510 is inserted into the socket 520, the second terminal 511 abuts against the first terminal 620; when the plug 510 continues to penetrate the socket 520, the second terminal 511 forms a relative force on the first terminal 620 due to the first The terminal 620 is in an active setting, and then the first terminal 620 is moved toward the base 610 by the relative force of the second terminal 511, thereby diluting the damage of the first terminal 620 by the relative force of the second terminal 511. The first spring 640 is also pressed.

As shown in FIG. 3 and FIG. 6 , a first protrusion 621 is disposed in the middle of the first terminal 620 , and one end of the first spring 640 abuts against the end surface of the mounting seat 610 b , and the other end abuts against the end surface of the first protrusion 621 . The sleeve 630 is internally provided with a stepped hole, the stepped hole includes: a second through hole 630a located at the bottom layer of the stepped hole, and a third through hole 630b located on the upper layer of the stepped hole, the second through hole 630a having a larger radius than the third through hole 630b Radius size. The first protrusion 621, one end of the first terminal 620 and one end of the base 610 are sleeved in the second through hole 630a from the inside to the outside, and the other end of the first terminal 620 is sleeved in the third through hole 630b.

The sleeve 630 is divided into two working spaces, that is, a second through hole 630a and a third through hole 630b. A part of the first terminal 620 is disposed in the second through hole 630a, and the other portion is disposed in the third through hole 630b. A protrusion 621 is used not only to abut one end of the first spring 640 but also to abut the end surface of the third through hole 630b, thereby restricting the first terminal 620 from coming out between the base 610 and the sleeve 630. When the plug 510 is withdrawn from the socket 520, the second terminal 511 is separated from the first terminal 620. At this time, the relative force of the second terminal 511 to the first terminal 620 disappears, and the first terminal 620 is first. The elastic restoring force of the spring 640 moves toward the side of the sleeve 630.

Further, a second spring 650 is disposed between the base 610 and the sleeve 630, and a second protrusion 631 is disposed in the middle of the sleeve 630. Specifically, one end of the second spring 650 is sleeved on the outer side of the mounting seat 610b, and the end portion abuts against the end surface of the base 610a. The other end of the second spring 650 is sleeved on the outer side of the sleeve 630, and the end portion and the end surface of the second protrusion 631 end. Abut. Next, the base 610a is provided with a locking block 610c having a semicircular inner diameter, and the second spring 650 can be fastened to the base 610 by the locking block 610c.

In the embodiment of the present invention, the second spring 650 mainly functions as a radial reset, that is, when the second terminal 511 is inserted, the second terminal 511 is difficult to achieve a strict axial force due to the instability of the user's hand. Insertion, usually deflecting some angles, by the radial elasticity of the second spring 650, so that the deflection can be smoothly inserted at a point, and the second terminal 511 of the plug can be corrected to a strict axial direction, which can also prevent light Loss of signal transmission. If there is no elastic tolerance in the radial direction, it is obvious that the force is increased when inserted, and it is not easy to insert, and it is easy to cause abrasion. If it is not strictly aligned in the axial direction, it is easy to cause optical transmission loss.

Further, since there is no gap between the coils of the second spring 650, it does not expand and contract in the axial direction, but only oscillates in the radial direction.

As shown in FIG. 6 , in the embodiment of the present invention, a fourth through hole 521 is defined in the corresponding position of the socket 520 , and the sleeve 630 is sleeved in the fourth through hole 521 . The inner diameter of the fourth through hole 521 is only slightly larger than the sleeve 630. In the axial direction of the sleeve 630, the axial reset of the sleeve 630 described herein can be achieved by the first spring 640.

Further, the terminal docking structure 600 further includes a bushing 660, the bushing 660 is located in the third through hole 630b, and is sleeved at the other end of the first terminal 620, and the bushing 660 is used to assist the first terminal 620 and When the second terminal 511 is docked, it is aligned.

As shown in FIG. 5, in order to achieve a good waterproof sealing effect between the second terminal 511 and the insulating substrate of the plug 510, a sealing ring 513 may be disposed between the inner wall of the mounting hole 512c and the outer wall of the second terminal 511. The cost is low, and the sealing effect is good, and the waterproof level above IPX level can be achieved.

The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the embodiments are modified, or the equivalents of the technical features are replaced by the equivalents of the technical solutions of the embodiments of the present invention.

Claims

A terminal docking structure, comprising: a base, a first terminal, a sleeve and a first spring, the first terminal being disposed between the base and the sleeve, the first spring Provided between the base and the first terminal;

The first terminal is movable relative to the base and the sleeve when the second terminal enters the sleeve and abuts the first terminal; when the second terminal is withdrawn from the sleeve And being separated from the first terminal, the first terminal is reset by the first spring, and the second terminal is a docking terminal corresponding to the first terminal.
The terminal docking structure according to claim 1, wherein the base comprises: a base and a mounting seat, and the mounting seat is provided with a first through hole adapted to one end of the first terminal, One end of the first terminal is nested in the first through hole and is axially movable along the first through hole.
The terminal docking structure according to claim 2, wherein a first protrusion is disposed in a middle portion of the first terminal, and one end of the first spring abuts against an end surface of the mounting seat, and the other end is opposite to the first end The convex end faces abut.
The terminal docking structure according to claim 3, wherein the sleeve is internally provided with a stepped hole, the stepped hole comprises: a second through hole located at the bottom layer of the stepped hole, and an upper layer of the stepped hole a third through hole, the second through hole radius size is larger than the third through hole radius size;

The first protrusion, one end of the first terminal, and one end of the base are sequentially sleeved in the second through hole from the inside to the outside, and the other end of the first terminal is sleeved in the third through hole Inside.
The terminal docking structure according to claim 4, further comprising a bushing, the bushing being located in the third through hole and sleeved at the other end of the first terminal, the bushing Aligning when the first terminal is connected to the second terminal.
The terminal docking structure according to claim 4, wherein a second spring is disposed between the base and the sleeve, and a second protrusion is disposed in a middle portion of the sleeve;

One end of the second spring is sleeved on the outer side of the mounting seat, and the end portion abuts against the end surface of the base;

The other end of the second spring is sleeved on the outer side of the sleeve, and the end portion abuts the second convex end surface.
The terminal docking structure according to claim 6, wherein the base is provided with a locking piece having a semicircular inner diameter, and the locking block is for fastening the second spring to the On the pedestal.
The terminal docking structure according to any one of claims 1 to 7, wherein the first terminal and the second terminal are optical fiber terminals.
A connector for use in an endoscope system, the endoscope system comprising: an endoscope, and a light source and/or processor device detachably coupled to the endoscope; the connection Between the endoscope and the light source and/or processor device for establishing a connection of the endoscope to the light source and/or processor device;

The connector includes: a plug disposed at one end of the endoscope, and a socket disposed on the light source and/or the processor device and adapted to the plug;

The plug end is provided with a second terminal, and a terminal docking structure according to any one of the preceding claims 1 to 8 is provided at a corresponding position of the socket;

The first terminal forms abutment with the second terminal when the plug is inserted into the socket.
An endoscope system comprising: an endoscope, and a light source and/or processor device detachably coupled to the endoscope, the endoscope being coupled to the light source and/or processor device The device establishes a connection, characterized in that the connector employs the connector according to claim 9 above.