CN210040757U - Electromagnetic shielding structure of light guide connector and light guide connector of electronic endoscope - Google Patents

Abstract

The utility model provides an electromagnetic shield structure and electron endoscope light guide that light guide connects for the processing degree of difficulty is high and problem with high costs among the solution prior art. The utility model provides an electromagnetic shield structure that light guide connects, including electrical joint, circuit board, cable and electromagnetic shield cover, electrical joint with circuit board electric connection, the cable with circuit board electric connection, electromagnetic shield cover seal installation be in on the electrical joint, electromagnetic shield cover with the electrical joint cooperation forms airtight space, the circuit board is located in the airtight space, the cable penetrates from the outside in the electromagnetic shield cover and with circuit board electric connection can reduce the processing degree of difficulty and cost.

Description

Electromagnetic shielding structure of light guide connector and light guide connector of electronic endoscope

Technical Field

The utility model relates to the field of medical equipment, especially relate to an electromagnetic shield structure and electron endoscope light guide of light guide joint connect.

Background

At present, the shielding structure of the light guide connector of the electronic endoscope in the domestic market is basically an integral shielding structure, and the integral shielding structure is relatively complex and unnecessary, so that the processing is difficult and the cost is wasted. The shielding structure that wholly appears is that the shell is metal construction from forming the shield cover, or for the inside whole shielding structure of laminating of plastic casing, and all metal casing cost is higher, and the inside whole shielding structure processing difficulty of laminating of plastic casing, the cost is higher, and can not accomplish purposely. The optical connector of the electronic endoscope has more interfaces, and each optical connector is not necessary to be provided with a shielding structure, so that the problem to be solved urgently is solved if the cost is reduced and the shielding effect of the optical connector of the electronic endoscope is ensured.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an electromagnetic shielding structure of a light guide connector and an electronic endoscope light guide connector, which are used to solve the problems of high processing difficulty and high cost in the prior art.

In order to achieve the above objects and other related objects, the utility model provides an electromagnetic shielding structure that optical connector, including electrical connector, circuit board, cable and electromagnetic shield cover, electrical connector with circuit board electric connection, the cable with circuit board electric connection, electromagnetic shield cover seal installation be in on the electrical connector, electromagnetic shield cover with the electrical connector cooperation forms airtight space, the circuit board is located in the airtight space, the cable penetrates from the outside in the electromagnetic shield cover and with circuit board electric connection.

Optionally, the electromagnetic shield may be removably secured to the electrical connector or non-removably secured to the electrical connector.

Optionally, the cable and the electromagnetic shielding cover are matched at the matching position through a waterproof structure.

Optionally, the electromagnetic shielding cover is a hard structure, a routing through hole is formed in the electromagnetic shielding cover, the cable can penetrate through the routing through hole, an outer-layer sheath of the cable is made of a flexible material, and the cable and the routing through hole are in interference fit to form the waterproof structure.

Optionally, the electromagnetic shielding cover is made of a metal plate or a metal composite plate.

Optionally, the electromagnetic shielding cover is welded or adhered to the electrical connector through glue.

Optionally, the electromagnetic shielding cover is fixed to the electrical connector through screw-thread fit, and a sealing ring is arranged between the electromagnetic shielding cover and the electrical connector.

Optionally, the electromagnetic shielding cover is of a flexible structure, and epoxy resin glue is filled in the electromagnetic shielding cover.

Optionally, the electromagnetic shielding cover is tightened and attached to the cable at the cable position.

Optionally, the electromagnetic shielding cover is formed by winding at least one layer of electromagnetic shielding tape.

An optical guide connector of an electronic endoscope,

comprising any of the electromagnetic shielding structures;

also comprises an endoscope light guide joint body,

the electromagnetic shielding cover and the cable are both positioned in the endoscope light guide connector body, and the electric connector is used for being connected with an endoscope host.

As described above, the electromagnetic shielding structure of the optical connector and the optical connector of the electronic endoscope of the present invention have at least the following advantageous effects:

install on electrical connector through electromagnetic shield cover for it carries out the electromagnetic shield to the circuit board, and through the cooperation of the waterproof construction of cable and electromagnetic shield cover cooperation position, can avoid or reduce the outer water of electromagnetic shield cover and enter into the electromagnetic shield cover in, thereby avoids the circuit board to wet.

Drawings

Fig. 1 is a schematic view of an electromagnetic shielding structure of an optical connector according to an embodiment of the present invention.

Fig. 2 is a schematic view of another embodiment of the electromagnetic shielding structure of the optical connector according to the present invention.

Fig. 3 is a schematic diagram illustrating an electromagnetic shielding structure of an optical connector according to an embodiment of the present invention.

Description of the element reference numerals

1 electric connector

2 Circuit Board

3 electric cable

4 electromagnetic shielding case

41 routing through hole

42 epoxy resin glue

43 narrow mouth structure

44 electromagnetic shielding adhesive tape

5 endoscope light guide connector body

51 light guide

52 head end

53 first housing

54 main water supply joint group

55 air feeding joint set

56 second housing

57 cable

58 pairs of water supply joint groups

59 suction joint set

60 air supply joint

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 to 3. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

The following examples are for illustrative purposes only. The various embodiments may be combined, and are not limited to what is presented in the following single embodiment.

In the embodiment, referring to fig. 1 to 2, the present invention provides an electromagnetic shielding structure of an optical connector, including an electrical connector 1, a circuit board 2, a cable 3 and an electromagnetic shielding cover 4, where the electrical connector 1 is electrically connected to the circuit board 2, the cable 3 is electrically connected to the circuit board 2, the electromagnetic shielding cover 4 is hermetically mounted on the electrical connector 1, the connection between the electromagnetic shielding cover 4 and the electrical connector 1 can be either a detachable fixing manner or a non-detachable fixing manner, the electromagnetic shielding cover 4 and the electrical connector 1 cooperate to form an enclosed space, the circuit board 2 is located in the enclosed space, the cable 3 penetrates into the electromagnetic shielding cover 4 from the outside and is electrically connected to the circuit board 2, the cooperating portion between the cable 3 and the electromagnetic shielding cover 4 can cooperate through a waterproof structure, the electric connector is tightly connected with the shell of the light guide connector, and a waterproof structure is not required. Make through electromagnetic shield cover 4 and electric joint 1 components of a whole that can function independently and then fix the design again for electric joint 1 and electromagnetic shield cover 4 can design for different materials, for example, the partial entity structure of electric joint 1 can be made with plastics, thereby reduce the cost, it is simpler to make, electromagnetic shield cover 4 can effectually shield circuit board 2 and other electrical components and parts and keep apart, avoid the interference of signal each other, thereby the reliability has been increased, when the waterproof construction through cable 3 and electromagnetic shield cover 4 hookup location cooperates, can avoid electromagnetic shield cover 4 outer water to enter into circuit board 2 department.

In this embodiment, referring to fig. 1, the electromagnetic shielding cover 4 is a hard structure, a routing through hole 41 is formed in the electromagnetic shielding cover 4, the cable 3 can pass through the routing through hole 41, an outer sheath of the cable 3 is made of a flexible material, which may be a rubber structure, and the cable 3 and the routing through hole 41 are in interference fit to form the waterproof structure. When the cable 3 passes through the routing through hole 41, the outer layer sheath of the cable 3 is radially extruded and contracted, and radially expands after passing through the routing through hole 41, so that the cable 3 and the routing through hole 41 can be waterproof through mutual interference fit, and the cable is simple in structure and low in cost.

In this embodiment, the electromagnetic shielding case 4 may be made of a metal plate. The electromagnetic shield can also be made of metal composite plates. And other hard structured sheet metal-bearing materials, by way of example only.

In this embodiment, the electromagnetic shielding cover 4 may be welded to the electrical connector 1, specifically, for example, by laser welding. The electromagnetic shield 4 may also be bonded to the electrical connector 1 by glue. For example, the electromagnetic shield cover 4 may be provided with an internal thread inside, and the electrical connector 1 may be provided with an external thread outside, and the external thread may be fixed to the electrical connector 1 by a thread, and in order to ensure a waterproof effect, one or more sealing rings may be fitted to the electrical connector 1 as long as the electromagnetic shield cover 4 and the electrical connector 1 can be fixed and sealed, which is only an example. Through the sealed installation of the flat shield cover of electromagnetism and electrical joint 1, the waterproof construction cooperation of cooperation electromagnetic shield cover 4 and cable 3 simultaneously for can form an electromagnetic shielding space also is a waterproof airtight space in the electromagnetic shield cover 4, and it has simple structure, and is with low costs, but it can reach waterproof and electromagnetic shielding's dual function.

In this embodiment, electromagnetic shield 4 is flexible structure, epoxy glue 42 is filled in electromagnetic shield 4, electromagnetic shield 4 can bond on electrical joint 1 through glue this moment, then cable 3 passes electromagnetic shield 4, owing to be provided with epoxy glue 42, it can avoid water to enter into circuit board 2 position from cable 3 and electromagnetic shield 4 position, cable 3 this moment passes electromagnetic shield 4 and can be the slot structure also can be the wide-mouth structure, owing to have its waterproof performance of epoxy glue 42 to guarantee, only when it is the wide-mouth structure, the function of the electromagnetic shield of here can weaken, but still can realize the function of electromagnetic shield to a certain extent. For example, in fig. 2, the electromagnetic shield 4 is tightened and attached to the cable 3 at the location of the cable 3. At this time, the narrow-mouth structure 43 is tightened, so that the shielding effect of the electromagnetic shielding cover 4 is good, and specifically, the electromagnetic shielding cover 4 may be formed by at least one layer of electromagnetic shielding tape 44. In fig. 2, a layer of electromagnetic shielding tape 44 is used, but it may also be wound by multiple layers, or when the degree of the electromagnetic shielding tape 44 is insufficient, the electromagnetic shielding tape may be overlapped and spliced to cover the shielding portions of the electrical connector 1, the circuit board 2 and the cable 3, in this structure, when the epoxy resin adhesive 42 is injected, the epoxy resin adhesive 42 needs to be injected into the position of the circuit board 2 from the position where the cable 3 passes through before the electromagnetic shielding tape 44 is injected, and after the injection is completed, the electromagnetic shielding tape 44 is tightened to be attached to the cable 3.

In this embodiment, referring to fig. 3, an electronic endoscope optical connector includes the electromagnetic shielding structure of the optical connector described in any one of the above embodiments and combined embodiments, and further includes an endoscope optical connector body 5, where the electromagnetic shielding cover 4 and the cable 3 are both located inside the endoscope optical connector body 5, and the electrical connector 1 is used for connecting with an endoscope host. The electromagnetic shield cover 4 isolates the circuit board 2 and other electrical components in the endoscope light guide connector body 5, so that mutual interference is avoided, and meanwhile, the shield cover and the cable 3 are matched through a waterproof structure, so that water in the endoscope light guide connector body 5 can be prevented from entering the circuit board 2. As shown in fig. 3, the electronic endoscope light guide connector may further include a light guide connector holder 51, a head 52, a first housing 53, a main water supply connector group 54, an air supply connector group 55, a second housing 56, a cable 57, a sub water supply connector group 58, a suction connector group 59, and an air supply connector 60.

To sum up, the utility model discloses an electromagnetic shield cover 4 is installed on electrical connector 1 for it carries out the electromagnetic shield to circuit board 2, and through the cooperation of the waterproof construction of cable 3 and electromagnetic shield cover 4 cooperation positions, can avoid or reduce in electromagnetic shield cover 4 outer water enters into electromagnetic shield cover 4, thereby avoids circuit board 2 to wet. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. It will be apparent to those skilled in the art that modifications and variations can be made to the above-described embodiments without departing from the spirit and scope of the invention, and it is intended that all equivalent modifications and variations be covered by the appended claims without departing from the spirit and scope of the invention.

Claims (10)

1. An electromagnetic shield structure of optical connector, includes electrical connector, circuit board, cable and electromagnetic shield cover, the electrical connector with circuit board electric connection, the cable with circuit board electric connection, its characterized in that:

the electromagnetic shielding cover is installed on the electrical connector in a sealing mode, the electromagnetic shielding cover and the electrical connector are matched to form a closed space, the circuit board is located in the closed space, and the cable penetrates into the electromagnetic shielding cover from the outer side and is electrically connected with the circuit board.

2. The electromagnetic shielding structure of an optical joint according to claim 1, wherein: the electromagnetic shield can be detachably fixed on the electrical connector or can not be detachably fixed on the electrical connector.

3. The electromagnetic shielding structure of an optical joint according to claim 1, wherein: the electromagnetic shielding cover is of a hard structure, a wiring through hole is formed in the electromagnetic shielding cover, the cable can penetrate through the wiring through hole, an outer layer wrapping of the cable is made of a flexible material, and the cable and the wiring through hole are in interference fit.

4. The electromagnetic shielding structure of an optical waveguide connector according to claim 3, wherein: the electromagnetic shielding cover is made of a metal plate or a metal composite plate.

5. The electromagnetic shielding structure of an optical connector according to any one of claims 3 to 4, wherein: the electromagnetic shielding cover is welded or adhered to the electrical connector through glue.

6. The electromagnetic shielding structure of an optical connector according to any one of claims 3 to 4, wherein: the electromagnetic shielding cover is fixed on the electrical connector in a threaded fit mode, and a sealing ring is arranged between the electromagnetic shielding cover and the electrical connector.

7. The electromagnetic shielding structure of an optical joint according to claim 1, wherein: the electromagnetic shielding cover is of a flexible structure, and epoxy resin glue is filled in the electromagnetic shielding cover.

8. The electromagnetic shielding structure of an optical waveguide connector according to claim 7, wherein: the electromagnetic shielding cover is tightened and attached to the cable.

9. The electromagnetic shielding structure of an optical joint according to claim 7 or 8, wherein: the electromagnetic shielding cover is formed by winding at least one layer of electromagnetic shielding adhesive tape.

10. An electronic endoscope light guide joint, characterized by:

an electromagnetic shielding structure comprising the optical joint of any of claims 1-9;

also comprises an endoscope light guide joint body,

the electromagnetic shielding cover and the cable are both positioned in the endoscope light guide connector body, and the electric connector is used for being connected with an endoscope host.

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