CN212392443U

CN212392443U - Electromagnetic leakage prevention structure of connector and connector thereof

Info

Publication number: CN212392443U
Application number: CN202020809173.9U
Authority: CN
Inventors: 吴小平; 罗振; 段白玉; 王晓凯
Original assignee: Dongguan Luxshare Technology Co Ltd
Current assignee: Dongguan Luxshare Technology Co Ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2021-01-22
Anticipated expiration: 2030-05-14
Also published as: TWM609132U

Abstract

The utility model is suitable for a connector technical field provides a connector prevent electromagnetic leakage structure and connector thereof, the connector includes the cage, the cage is used for assembling a plurality of subassemblies, prevent electromagnetic leakage structure includes: the anti-electromagnetic leakage part is arranged on the cage and shields the assembly gap between the cage and at least one component. Therefore, the utility model discloses a prevent to produce the electromagnetism after the cage of connector and subassembly equipment and leak.

Description

Electromagnetic leakage prevention structure of connector and connector thereof

Technical Field

The utility model relates to a connector technical field especially relates to an electromagnetic leakage prevention structure of connector and connector thereof.

Background

Connectors are widely used in various application scenarios to transmit signals. Connectors typically include a cage and a plurality of components that are mounted to the cage, typically with a mounting clearance that does not completely shield signal interference. In particular, the gap formed when the cage is assembled with a heat sink or circuit board does not completely shield signal interference.

In the prior art, there is a chinese patent application, having a patent application number CN201921302938.3, entitled "plug connector", which provides a plug connector adapted for insertion into a receptacle connector that includes a cage with an opening. The plug connector comprises a metal shell and a conductive elastic piece. The metal shell is provided with a groove. The conductive elastic piece comprises a conductive elastic body, the conductive elastic body is provided with a fixing part fixed in the groove, and a first electromagnetic shielding part extends out of the groove from the fixing part, wherein when the plug connector is inserted into the socket connector forwards, the first electromagnetic shielding part enters the opening of the cage shell of the socket connector and mechanically and electrically contacts the cage shell and the metal shell. In some embodiments, the conductive elastic element may also be directly held on the metal shell without the holding portion and the groove. Although it can solve the problem of electromagnetic leakage at the top and bottom of the plug connector, it is complicated in structure.

In view of the above, it is obvious that the prior art has inconvenience and disadvantages in practical use, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect, an object of the present invention is to provide an electromagnetic leakage preventing structure of a connector and a connector thereof, so as to prevent electromagnetic leakage after assembling a cage and a component of the connector.

In order to achieve the above object, the present invention provides an electromagnetic leakage preventing structure of a connector, the connector including a cage for assembling a plurality of components, the electromagnetic leakage preventing structure including:

the anti-electromagnetic leakage part is arranged on the cage and shields the assembly gap between the cage and at least one component.

According to the electromagnetic leakage prevention structure, the assembly comprises at least one heat dissipation piece, at least one circuit board and/or at least one group of cables; the electromagnetic leakage prevention structure includes:

the first electromagnetic leakage prevention part is arranged on the cage and shields an assembly gap between the cage and the heat dissipation part; and/or

The second electromagnetic leakage prevention part is arranged on the cage and shields an assembly gap between the cage and the circuit board; and/or

At least one third prevention electromagnetic leakage piece is arranged on the cage and shields the cage and an assembly gap between the cables.

According to anti-electromagnetic leakage structure, the radiating piece set up in the top of cage, and first anti-electromagnetic leakage spare set up in the radiating piece with between the roof of cage.

According to anti-electromagnetic leakage structure, at least one first opening has been seted up to the roof of cage, the radiating piece have with the convex part of first opening looks adaptation, the middle part of first anti-electromagnetic leakage piece seted up with the second opening of first opening looks adaptation, the second opening is more than or equal to first opening.

According to the electromagnetic leakage prevention structure, the outer part of the first electromagnetic leakage prevention part surrounds the periphery of the convex part of the heat dissipation part.

According to anti-electromagnetic leakage structure, the circuit board set up in the bottom of cage, and anti-electromagnetic leakage of second spare set up in the circuit board with between the diapire of cage.

According to the electromagnetic leakage prevention structure, at least one third opening is formed in the bottom wall of the cage, and the second electromagnetic leakage prevention part surrounds the periphery of the third opening.

According to the electromagnetic leakage prevention structure, the bottom wall of the cage comprises a plurality of mounting feet, and the circuit board is provided with a plurality of mounting holes corresponding to the mounting feet; the periphery of the second anti-electromagnetic leakage part is provided with a plurality of through holes matched with the mounting pins, and the mounting pins penetrate through the through holes respectively to penetrate through the mounting holes of the circuit board.

According to anti-electromagnetic leakage structure, the cable set up in the rear portion of cage, and the third electromagnetic leakage prevention piece set up in the cable with between the back wall of cage.

According to anti-electromagnetic leakage structure, at least one fourth opening has been seted up on the back wall of cage, be provided with at least one installation department on the third prevention electromagnetic leakage piece, and the appearance of installation department with fourth opening looks adaptation, the installation department assemble in the fourth opening, and fifth opening has been seted up at the middle part of third prevention electromagnetic leakage piece, fifth opening with cable looks adaptation, the cable passes the fifth opening.

According to the electromagnetic leakage prevention structure, a plurality of convex pieces are arranged on the outer periphery of the mounting part of the third electromagnetic leakage prevention piece; a plurality of grooves matched with the protruding pieces are formed in the rear wall of the cage; the plurality of protruding pieces are clamped with the plurality of grooves.

According to the electromagnetic leakage prevention structure, the rear wall comprises an upper end part and a lower end part; the upper end part and the lower end part are integrally formed or separately formed; the upper end part and the lower end part are respectively and correspondingly provided with a plurality of grooves.

According to anti-electromagnetic leakage structure, leakage spare is leaked in third prevention electromagnetism the back wall of cage, the cable set up in the rear portion of cage passes leakage spare is leaked in third prevention electromagnetism.

According to the electromagnetic leakage prevention structure, the electromagnetic leakage prevention part is made of electromagnetic wave absorption materials and/or conductive plastic materials.

In order to achieve another object of the present invention, the present invention further provides a connector, including the electromagnetic leakage preventing structure.

The utility model discloses a set up the anti-electromagnetic leakage structure of connector into including at least one anti-electromagnetic leakage spare, should prevent electromagnetic leakage spare set up in on the cage, and shield cage and at least one assembly gap between the subassembly. Wherein, the subassembly includes radiating piece, circuit board and/or cable etc. of connector, owing to adopt anti-electromagnetic leakage spare to set up between above-mentioned a plurality of subassemblies and cage, shields the fit-up gap between them and the cage, from this, fine prevented the electromagnetic leakage that produces after above-mentioned a plurality of subassemblies and the cage assembly, improved the performance of connector.

Drawings

Fig. 1 is a schematic view of an assembly structure of an electromagnetic leakage preventing structure of a connector according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a first electromagnetic leakage preventing component according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a heat sink in an electromagnetic leakage prevention structure of a connector according to an embodiment of the present invention;

fig. 4 is a schematic view of an assembly structure of an electromagnetic leakage preventing structure of a connector according to an embodiment of the present invention;

fig. 5 is a schematic view of an assembly structure of an electromagnetic leakage preventing structure of a connector according to an embodiment of the present invention;

fig. 6 is a schematic view of an assembly structure of an electromagnetic leakage preventing structure of a connector according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a second electromagnetic leakage preventing component according to an embodiment of the present invention;

fig. 8 is a schematic view of an assembly structure of an electromagnetic leakage preventing structure of a connector according to an embodiment of the present invention;

fig. 9 is an enlarged view of a portion a in fig. 8 according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a part of the assembly at a in fig. 8 according to an embodiment of the present invention;

fig. 11 is an assembly structure diagram of an electromagnetic leakage preventing structure of a connector according to an embodiment of the present invention;

fig. 12 is an enlarged view of the embodiment of the present invention at B in fig. 11;

fig. 13 is an assembly structure diagram of an electromagnetic leakage preventing structure of a connector according to an embodiment of the present invention;

fig. 14 is an enlarged view of C in fig. 13 according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of a third electromagnetic leakage prevention member according to an embodiment of the present invention;

fig. 16 is a schematic view of the upper end of the cage back wall of the connector according to an embodiment of the present invention;

fig. 17 is a schematic view of a lower end structure of a cage rear wall of a connector according to an embodiment of the present invention.

Wherein, the reference numbers:

100 second opening of connector 111

10 anti-electromagnetic leakage structure 121 through hole

20 fifth opening of cage 131

11 first anti-electromagnetic-leakage part 132 protrusion

12 second anti-electromagnetic leakage component 133 mounting part

13 third electromagnetic leakage prevention part 201 top wall

21 first opening 202 bottom wall

23 back wall of fourth opening 203

24 concave 311 convex

31 heat sink 321 mounting hole

32 upper end portion of circuit board 251

33 lower end portion of cable 252

2021 mounting foot

2022 third opening

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be appreciated that references in the specification to "one embodiment," "an example embodiment," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not intended to refer to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

Where certain terms are used in the specification and following claims to refer to particular components or features, those skilled in the art will understand that various terms or numbers may be used by a skilled user or manufacturer to refer to the same component or feature. This specification and the claims that follow do not intend to distinguish between components or features that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. In addition, the term "connected" is intended to encompass any direct or indirect electrical connection. Indirect electrical connection means include connection by other means.

It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 17, in an embodiment of the present invention, there is provided an electromagnetic leakage preventing structure 10 of a connector 100, the connector 100 includes a cage 20, the cage 20 is used for assembling a plurality of components, and the electromagnetic leakage preventing structure 10 includes:

and the at least one electromagnetic leakage preventing part (11, 12, 13) is arranged on the cage 20 and shields an assembly gap between the cage 20 and at least one component. Some components in the structure of the connector 100 may have certain gaps with the cage 20, and the occurrence of these gaps may cause the connector 100 to prevent electromagnetic leakage, thereby affecting the use of the connector 100. In the present embodiment, at least one electromagnetic leakage preventing member (11, 12, 13) is disposed on the cage 20, and the at least one electromagnetic leakage preventing member (11, 12, 13) is used to shield an assembly gap between the cage 20 and at least one of the components, thereby preventing electromagnetic leakage of the connector 100. Of course, at least one electromagnetic leakage preventing component is not only the electromagnetic leakage preventing component structure of the

reference numerals

11, 12, and 13 in the embodiment of the present application, but also other electromagnetic leakage preventing component structures can be provided, and the assembling gap between the cage 20 and the component (31, 32, and 33) is shielded.

Referring to fig. 1-17, in one embodiment of the present invention, the assembly includes at least one heat sink 31, at least one circuit board 32, and/or at least one set of cables 33; the electromagnetic leakage preventing structure 10 includes:

at least one first electromagnetic leakage preventing member 11 disposed on the cage 20 and shielding an assembly gap between the cage 20 and the heat dissipating member 31; by disposing the first electromagnetic leakage prevention member 11 between the cage 20 and the heat sink 31, the fitting gap between the cage 20 and the heat sink 31 is shielded to prevent electromagnetic leakage; and/or

At least one second electromagnetic leakage preventing member 12 disposed on the cage 20 and shielding a mounting gap between the cage 20 and the circuit board 32; shielding a fitting gap between the cage 20 and the circuit board 32 by disposing the second electromagnetic leakage preventing member 12 between the cage 20 and the circuit board 32 to prevent electromagnetic leakage; and/or

And at least one third electromagnetic leakage prevention member 13 which is arranged on the cage 20 and shields an assembly gap between the cage 20 and the cable 33. By providing the third electromagnetic leakage preventer 13 between the cage 20 and the cable 33, the cage 20 and the cable 33 are shielded from electromagnetic leakage. The first electromagnetic leakage preventing member 11, the second electromagnetic leakage preventing member 12 and the third electromagnetic leakage preventing member 13 can be any combination of three electromagnetic leakage preventing members for preventing electromagnetic leakage according to the actual design requirement of the connector 100. Of course, in addition to the above three components and the position setting manner of the electromagnetic leakage preventing component, other components of the connector 100, such as the terminal portion of the connector 100, etc., may be installed in cooperation with the electromagnetic leakage preventing component, and the position setting selection of the electromagnetic leakage preventing component, and more electromagnetic leakage preventing components may be added at other positions of the connector 100, except the manner of being directly connected with the above three components, or the manner of not being directly connected with the above three components, so as to absorb the generated interference signal source and improve the capability of preventing electromagnetic leakage.

Referring to fig. 1 to 5, in an embodiment of the present invention, the specific structure of the first electromagnetic leakage preventing member 11 disposed on the cage 20 and shielding the assembly gap between the cage 20 and the heat dissipating member 31 is: the heat sink 31 is disposed on the top of the cage 20, and the first electromagnetic leakage preventing member 11 is disposed between the heat sink 31 and the top wall of the cage 20. Specifically, the top wall 201 of the cage 20 is provided with at least one first opening 21, the heat sink 31 has a protrusion 311 adapted to the first opening 21, the middle portion of the first electromagnetic leakage preventing component 11 is provided with a second opening 111 adapted to the first opening 21, and the second opening 111 is greater than or equal to the first opening 21. When the protrusion 311 of the heat sink 31 protrudes from the first opening 21 of the first opening 21 and the first opening 21 of the top of the cage 20, due to the structural configuration of the second opening 111 and the surrounding of the protrusion 311 of the heat sink 31 around the outside of the first opening 11, the electromagnetic leakage generated when the protrusion 311 and the first opening 21 of the cage 20 are displaced can be prevented.

Referring to fig. 6 to 7, in an embodiment of the present invention, the circuit board 32 is disposed at the bottom of the cage 20, and the second electromagnetic leakage preventing member 12 is disposed between the circuit board 32 and the bottom wall 202 of the cage 20. At least one third opening 2022 is opened on the bottom wall 202 of the cage 20, and the second electromagnetic leakage preventing member 12 surrounds the third opening 2022. Specifically, the bottom wall 202 of the cage 20 includes a plurality of mounting feet 2021, and the circuit board 32 is provided with a plurality of mounting holes 321 corresponding to the plurality of mounting feet 2021; a plurality of through holes 121 adapted to the plurality of mounting pins 2021 are formed in the periphery of the second electromagnetic leakage preventing member 12, a plurality of corresponding mounting holes 321 are formed in the circuit board 32, and the plurality of mounting pins 2021 penetrate through the plurality of through holes 121 to the mounting holes 321 of the circuit board 32 respectively. Because the second anti-electromagnetic-leakage component 12 is disposed between the circuit board 32 and the bottom wall 202 of the cage 20, and the through holes 121 and the mounting feet 2021 are cooperatively mounted, the second anti-electromagnetic-leakage component 12 can be well fixed between the circuit board 32 and the bottom wall 202 of the cage 20 to prevent electromagnetic leakage between the circuit board 32 and the cage 20.

Referring to fig. 8 to 17, in an embodiment of the present invention, the cable 33 is disposed at the rear of the cage 20, and the third electromagnetic spill 13 is disposed between the cable 33 and the rear wall 203 of the cage 20. Specifically, referring to fig. 8 to 10, at least one fourth opening 23 is opened on the rear wall 203 of the cage 20, as shown in fig. 15, at least one mounting portion 133 is provided on the third electromagnetic leakage prevention member 13, the outer shape of the mounting portion 133 is adapted to the fourth opening 23, the mounting portion 133 is assembled to the fourth opening 23, a fifth opening 131 is opened in the middle of the third electromagnetic leakage prevention member 13, the fifth opening 131 is adapted to the cable 33, and the cable 33 passes through the fifth opening 131. The fifth opening 131 can be used for well wrapping a plurality of cables in the cable 33, and can be used for well preventing electromagnetic leakage generated when the cable 33 moves relative to the rear wall 203.

Preferably, referring to fig. 13 to 17, the mounting portion 133 of the third electromagnetic leakage prevention member 13 is provided with a plurality of protrusions 132 around its outer circumference; a plurality of grooves 24 matched with the convex pieces 132 are formed on the rear wall 203 of the cage 20; the plurality of protrusions 132 engage with the plurality of grooves 24. Due to the engagement of the protrusion 132 and the groove 24, the third electromagnetic leakage prevention member 13 can be stably mounted on the rear wall 203 of the cage 20. In other embodiments of the present invention, depending on the structural arrangement of the connector 100, as shown in fig. 13, 16 and 17, the rear wall 203 includes an upper end portion 251 and a lower end portion 252, and the upper end portion 251 and the lower end portion 252 of the rear wall 203 are integrally formed or separately formed. A plurality of grooves 24 are correspondingly formed on the upper end part 251 and the lower end part 252 respectively; in another embodiment of the present invention, the third electromagnetic leakage prevention member 13 is the rear wall 202 of the cage 20, the cable 33 is disposed at the rear portion of the cage 20 and passes through the third electromagnetic leakage prevention member 13, so as to improve the electromagnetic leakage prevention effect between the third electromagnetic leakage prevention member 13 and the cable 33.

It should be noted that, regarding the third electromagnetic leakage preventing structure of the electromagnetic leakage preventing member 13, the structure of the cage 20 in the form of 2X1 stack is shown in the above embodiments and the drawings, but the same is also applicable to the structure of the cage 20 in the form of 1X1 and the connector 100 thereof. The anti-electromagnetic-leakage components (11, 12, 13, 14) may include one or more anti-electromagnetic-leakage components (11, 12, 13, 14) to adapt to the structural design of the connector 100 according to the structural configuration requirements of the connector 100.

Preferably, in the above embodiments, the electromagnetic leakage preventing member (11, 12, 13) is made of electromagnetic wave absorbing material and/or conductive plastic material. Electromagnetic wave absorbing materials are materials that absorb the energy of electromagnetic waves projected onto their surfaces. In engineering application, the wave-absorbing material is required to have high absorption rate to electromagnetic waves in a wider frequency band, and also has the properties of light weight, temperature resistance, moisture resistance, corrosion resistance and the like. The conductive plastic material is a plastic material with a conductive characteristic; or adding a conductive medium into the plastic material or plating the conductive medium on the surface of the plastic material to ensure that the plastic material has the conductive characteristic. In order to achieve another object of the present invention, the present invention further provides a connector 100, including any one of the electromagnetic leakage preventing structures 10. The connector 100 is widely applicable and may be used in a QSFP (Quad Small Form-factor plug): a four-channel SFP; SFP is an abbreviation of GBIC (Gigabit Interface Converter), and is a connector of an Interface device Interface (QSFP) or an OSFP (Open Shortest Path First) Interface that converts a Gigabit electric signal into an optical signal.

Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be covered by the appended claims.

Claims

1. An anti-electromagnetic-leakage structure of a connector, the connector comprising a cage for fitting a plurality of components, the anti-electromagnetic-leakage structure comprising:

2. The electromagnetic leakage prevention structure of claim 1, wherein the assembly comprises at least one heat dissipation member, at least one circuit board and/or at least one set of cables; the electromagnetic leakage prevention structure includes:

3. The electromagnetic leakage prevention structure of claim 2, wherein the heat dissipation member is disposed at a top of the cage, and the first electromagnetic leakage prevention member is disposed between the heat dissipation member and a top wall of the cage.

4. The electromagnetic leakage prevention structure of claim 3, wherein the cage has at least one first opening formed in a top wall thereof, the heat sink has a protrusion adapted to the first opening, the first electromagnetic leakage prevention member has a second opening adapted to the first opening formed in a middle portion thereof, and the second opening is greater than or equal to the first opening.

5. The structure of claim 4, wherein the outer portion of the first member surrounds the periphery of the protruding portion of the heat sink.

6. The structure of claim 2, wherein the circuit board is disposed at a bottom of the cage, and the second member for preventing electromagnetic leakage is disposed between the circuit board and the bottom wall of the cage.

7. The electromagnetic leakage prevention structure of claim 6, wherein the bottom wall of the cage defines at least one third opening, and the second electromagnetic leakage prevention member surrounds the third opening.

8. The electromagnetic leakage prevention structure of claim 7, wherein the bottom wall of the cage comprises a plurality of mounting pins, and the circuit board is provided with a plurality of mounting holes corresponding to the mounting pins; the periphery of the second anti-electromagnetic leakage part is provided with a plurality of through holes matched with the mounting pins, and the mounting pins penetrate through the through holes respectively to penetrate through the mounting holes of the circuit board.

9. The electromagnetic leakage prevention structure of claim 2, wherein the cable is disposed at a rear of the cage, and the third electromagnetic leakage prevention member is disposed between the cable and a rear wall of the cage.

10. The electromagnetic leakage prevention structure of claim 9, wherein the cage has at least one fourth opening formed in a rear wall thereof, the third electromagnetic leakage prevention member has at least one mounting portion formed thereon, the mounting portion has an outer shape adapted to the fourth opening, the mounting portion is assembled to the fourth opening, a fifth opening is formed in a middle portion of the third electromagnetic leakage prevention member, the fifth opening is adapted to the cable, and the cable passes through the fifth opening.

11. The electromagnetic leakage prevention structure of claim 10, wherein the mounting portion of the third electromagnetic leakage prevention member is provided with a plurality of protruding members around an outer circumference thereof; a plurality of grooves matched with the protruding pieces are formed in the rear wall of the cage; the plurality of protruding pieces are clamped with the plurality of grooves.

12. The electromagnetic leakage prevention structure of claim 11, wherein the rear wall includes an upper end portion and a lower end portion; the upper end part and the lower end part are integrally formed or separately formed; the upper end part and the lower end part are respectively and correspondingly provided with a plurality of grooves.

13. The electromagnetic leakage prevention structure of claim 2, wherein the third electromagnetic leakage prevention member is a rear wall of the cage, and the cable is disposed at a rear portion of the cage and passes through the third electromagnetic leakage prevention member.

14. The structure of claim 1, wherein the member for preventing electromagnetic leakage is made of electromagnetic wave-absorbing material and/or conductive plastic material.

15. A connector comprising the electromagnetic leakage preventing structure according to any one of claims 1 to 14.