CN210838321U

CN210838321U - Anti-interference plug and signal transmission connecting assembly

Info

Publication number: CN210838321U
Application number: CN201922340360.7U
Authority: CN
Inventors: 郭坤; 张振方; 王志刚; 徐渊; 肖国凯; 姚凯; 高存统; 刘军
Original assignee: Suzhou Xinyi Scientific Instrument Co ltd
Current assignee: Suzhou Xinyi Scientific Instrument Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-06-23
Anticipated expiration: 2029-12-24

Abstract

The utility model provides an anti-interference plug and signal transmission coupling assembling relates to microwave heating technical field, the utility model provides an anti-interference plug includes first shielding shell, second shielding shell and fixed cover, and first shielding shell and second shielding shell's outside is located to fixed cover, and the both ends of fixed cover are connected with first shielding shell and second shielding shell respectively to make first shielding shell and second shielding shell's tip offset. The utility model provides a fixed cover can play the effect of consolidating the protection to first shield shell and second shield shell in the anti-interference plug, avoids corrosive gas direct and two shield shell contacts on the one hand, avoids two shield shell's link to receive the corruption, and on the other hand makes two shield shell inseparabler offsets, and the better shielding effect that plays guarantees the stable transmission of its inside signal of telecommunication.

Description

Anti-interference plug and signal transmission connecting assembly

Technical Field

The utility model belongs to the technical field of the microwave heating technique and specifically relates to an anti-interference plug and signal transmission coupling assembling are related to.

Background

The microwave heating technology is widely applied to the scheme of sample pretreatment, and in order to realize closed-loop control of microwave heating, signals such as temperature, pressure and the like in a microwave cavity need to be acquired. The collected signals are mostly electric signals, and are easily interfered by microwaves when being transmitted out of the cavity in a switching mode.

At present, the interference is mostly prevented by adopting a metal plug mode, and the electromagnetic shielding and interference preventing effects are achieved by the direct contact of the metal plug and the socket. The socket and the plug shell are made of metal, and the good grounding of the socket and the plug shell can ensure good contact between the socket and the plug shell, so that the interference can be prevented.

But the plug can be pulled back and forth when using, and its service environment has corrosive gas simultaneously, and the material of plug shell is mostly copper. After the plug is used for a period of time, the fit clearance between the plug and the socket is enlarged due to corrosion and abrasion between metals, and phenomena such as sparking and the like caused by poor contact occur, so that the transmission of electric signals in the plug is influenced.

Therefore, it is one of the technical problems to be solved by those skilled in the art how to provide an anti-interference plug and a signal transmission connection assembly capable of ensuring stable transmission of electrical signals.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-interference plug and signal transmission coupling assembling can guarantee its inside stable transmission of signal of telecommunication.

In order to achieve the above object, the utility model provides a following technical scheme:

in a first aspect, the utility model provides an anti-interference plug, including first shielding shell, second shielding shell and fixed cover, fixed cover is located first shielding shell with the outside of second shielding shell, just the both ends of fixed cover respectively with first shielding shell with second shielding shell connects, so that first shielding shell with the tip of second shielding shell offsets.

Further, the first shield can extends at least partially into the second shield can.

Furthermore, an elastic conductive ring is arranged between the first shielding shell and the second shielding shell.

Furthermore, support rings are arranged on two sides of the elastic conducting ring along the axial direction of the elastic conducting ring.

Furthermore, a limiting groove is formed in the first shielding shell, a first connecting structure is formed in the second shielding shell, the first end portion of the fixing sleeve is located in the limiting groove, and the second end portion of the fixing sleeve is connected with the first connecting structure.

Further, first connection structure include with the arch of second shielding shell surface connection, first shielding shell's second tip with protruding joint.

Further, the first shielding shell comprises a first shell, a second shell and a third shell;

the first shell extends into the second shielding shell;

two ends of the second shell are respectively connected with the first shell and the third shell;

the limiting groove is formed between the end part of the third shell, close to the second shell, and the outer surface of the second shell.

Further, the outer surface of the second shield shell has a second connection structure for connecting with other devices.

In a second aspect, the present invention further provides a signal transmission connection assembly, including a first ferrule, a second ferrule and the above-mentioned solution, the anti-interference plug, the first ferrule is disposed in the first shielding housing, the second ferrule is disposed in the second shielding housing, the first ferrule is used for the transmission of the signal with the second ferrule.

Further, the optical connector further comprises a first wire and a second wire, wherein the first wire is connected with the first ferrule, and the second wire is connected with the second ferrule.

The utility model provides an anti-interference plug and signal transmission coupling assembling can produce following beneficial effect:

the utility model discloses in the anti-interference plug that the first aspect provided, first shield shell and second shield shell's outside is located to fixed cover, and fixed cover can be connected with above-mentioned two shield shells to make the two tip offset. Consequently, when using above-mentioned anti-interference plug, fixed cover can play the effect of reinforcement protection, avoids corrosive gas direct and two shield shell contacts on the one hand, avoids two shield shell's link to receive the corruption, and on the other hand makes two shield shell inseparabler offsets, and better plays the shielding effect, can also prevent simultaneously because of the plug is drawn the phenomenon of striking sparks because of the contact failure that leads to partially, guarantees the stable transmission of its inside signal of telecommunication.

The utility model discloses the signal transmission coupling assembling that the second aspect provided includes first lock pin, second lock pin and above-mentioned anti-interference plug, and signal transmission can be realized with the grafting of second lock pin to first lock pin, and the effect of electromagnetic shield jam-proof can be played with second shielding shell to the two outside first shielding shell. Compared with the prior art, the signal transmission connecting assembly can transmit signals more stably and has longer service life.

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 technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic three-dimensional structure diagram of an anti-interference plug provided in an embodiment of the present invention;

fig. 2 is a front view of an anti-interference plug according to an embodiment of the present invention;

FIG. 3 is a schematic view of the structure A-A of FIG. 2;

fig. 4 is a front view of a signal transmission connection assembly provided by an embodiment of the present invention;

FIG. 5 is a schematic view of the structure B-B of FIG. 4.

Icon: 1-a first shielding housing; 11-a limiting groove; 12-a first housing; 13-a second housing; 14-a third housing; 2-a second shielding housing; 21-a first connecting structure; 22-a second connecting structure; 3, fixing a sleeve; 4-an elastic conductive ring; 5-a support ring; 6-a first ferrule; 7-a second ferrule; 8-a first wire; 9-second conductor.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

Fig. 1 is a schematic three-dimensional structure diagram of an anti-interference plug provided in an embodiment of the present invention; fig. 2 is a front view of an anti-interference plug according to an embodiment of the present invention; FIG. 3 is a schematic view of the structure A-A of FIG. 2; fig. 4 is a front view of a signal transmission connection assembly provided by an embodiment of the present invention; FIG. 5 is a schematic view of the structure B-B of FIG. 4.

An embodiment of the first aspect of the present invention provides an anti-interference plug, as shown in fig. 1 and fig. 2, including first shielding shell 1, second shielding shell 2 and fixed cover 3, the outside of first shielding shell 1 and second shielding shell 2 is located to fixed cover 3 cover, and the both ends of fixed cover 3 are connected with first shielding shell 1 and second shielding shell 2 respectively, so that the tip of first shielding shell 1 and second shielding shell 2 offsets.

The utility model discloses in the interference plug that the embodiment of the first aspect provided, first shield shell and second shield shell's outside is located to fixed cover, and fixed cover can be connected with above-mentioned two shield shells to make the two tip offset. Consequently, when using above-mentioned anti-interference plug, fixed cover can play the effect of reinforcement protection, avoids corrosive gas direct and two shield shell contacts on the one hand, avoids two shield shell's link to receive the corruption, and on the other hand makes two shield shell inseparabler offsets, and better plays the shielding effect, can also prevent simultaneously because of the plug is drawn the phenomenon of striking sparks because of the contact failure that leads to partially, guarantees the stable transmission of its inside signal of telecommunication.

In some embodiments, as shown in fig. 3, in order to increase the contact area between the first shielding housing 1 and the second shielding housing 2 and sufficiently shield the signal, the first shielding housing 1 at least partially extends into the second shielding housing 2, and the end of the portion of the first shielding housing 1 exposed out of the second shielding housing 2 is abutted against the end of the second shielding housing 2.

Preferably, the longer the part of the first shielding shell 1 extending into the second shielding shell 2 is, the better the relative contact area between the two is increased, and the better signal shielding effect can be achieved.

In some other embodiments, the second shielding shell 2 may at least partially extend into the first shielding shell 1, and an end of the portion of the second shielding shell 2 exposed out of the first shielding shell 1 abuts against an end of the first shielding shell 1.

When the first shielding shell 1 at least partly extends into the second shielding shell 2, optionally, as shown in fig. 3, a resilient conductive ring 4 is provided between the first shielding shell 1 and the second shielding shell 2. The elastic conducting ring 4 is used as an intermediate medium, so that the first shielding shell 1 and the second shielding shell 2 are in soft connection, a gap between the two shells is compensated, and interference resistance can be better realized compared with a hard connection of direct contact of metal parts.

The elastic conductive ring 4 may be conductive rubber, a conductive foam strip, or the like.

Optionally, as shown in fig. 3, the elastic conductive ring 4 is provided with support rings 5 on both sides along the axial direction of the elastic conductive ring 4. The support ring 5 can serve as a guide support for the insertion of the first shield shell 1 into the second shield shell 2.

Specifically, two sides of the elastic conductive ring 4 are respectively provided with one support ring 5, the elastic conductive ring 4 and the two support rings 5 are both installed on the outer surface of the first shielding shell 1, the outer surface of the first shielding shell 1 is provided with an installation groove, the elastic conductive ring 4 and the two support rings 5 are both installed in the installation groove, and the installation groove defines the axial positions of the elastic conductive ring 4 and the two support rings 5 relative to the first shielding shell 1.

In at least one embodiment, the support ring 5 is made of wear-resistant plastic to reduce wear with the elastic conductive ring 4 and the first shield shell 1.

In some embodiments, as shown in fig. 1 to 3, the first shielding shell 1 has a position-limiting groove 11 thereon, the second shielding shell 2 has a first connecting structure 21 thereon, the first end of the fixing sleeve 3 is located in the position-limiting groove 11, and the second end of the fixing sleeve 3 is used for connecting with the first connecting structure 21. The limiting groove 11 is used for limiting the position of the fixing sleeve 3 relative to the first shielding shell 1, the first connecting structure 21 is used for limiting the position of the fixing sleeve 3 relative to the second shielding shell 2, when two shells are required to be connected, as the first end of the fixing sleeve 3 is located in the limiting groove 11, the second end of the fixing sleeve 3 is only required to be connected with the first connecting structure 21, and the installation is convenient.

It should be noted that all the structures capable of connecting with the second end of the fixing sleeve 3 can be the first connecting structure 21 mentioned in the above embodiments.

The first method is as follows:

the first connecting structure may include a projection connected to an outer surface of the second shield shell 2, and the second end of the fixing cover 3 is engaged with the projection.

When the fixing sleeve 3 needs to be connected with the second shielding shell 2, the second end part of the fixing sleeve 3 can be clamped on the protrusion; when the connection between the fixing sleeve 3 and the second shielding shell 2 needs to be cancelled, the fixing sleeve 3 can be pulled outwards, and the clamping connection between the fixing sleeve 3 and the protrusion is cancelled. The arrangement mode facilitates the plugging and unplugging of the fixed sleeve 3 and the first shielding shell 1, and the use is convenient and simple.

The second method comprises the following steps:

the first connecting structure may include a slot formed on an outer surface of the second shield case 2 for connection, and the second end of the fixing sleeve 3 is engaged with the slot.

When the fixing sleeve 3 needs to be connected with the second shielding shell 2, the second end of the fixing sleeve 3 can be clamped into the clamping groove; when the connection between the fixing sleeve 3 and the second shielding shell 2 needs to be cancelled, the fixing sleeve 3 can be pulled outwards, and the clamping connection between the fixing sleeve 3 and the clamping groove is cancelled. The arrangement mode facilitates the plugging and unplugging of the fixed sleeve 3 and the first shielding shell 1, and the use is convenient and simple.

The third method comprises the following steps:

the first connecting structure may include an external thread provided on an outer surface of the second shield shell 2, and the second end of the fixing sleeve 3 has an internal thread, which is screw-connected with the external thread.

When the fixing sleeve 3 needs to be connected with the second shielding shell 2, the second end of the fixing sleeve 3 can be screwed on the external thread; when the connection of the fixing sleeve 3 with the second shielding shell 2 needs to be cancelled, the fixing sleeve 3 can be rotated, and the threaded connection of the fixing sleeve 3 and the protrusion is cancelled. The arrangement mode can ensure that the fixed sleeve 3 is more firmly connected with the second shielding shell 2, and the stability of the use process is ensured.

In some embodiments, as shown in fig. 3, the first shield shell 1 includes a first shell 12, a second shell 13, and a third shell 14; the first housing 12 extends into the second shielding shell 2; both ends of the second housing 13 are connected to the first housing 12 and the third housing 14, respectively; a limiting groove 11 is formed between the end of the third shell 14 close to the second shell 13 and the outer surface of the second shell 13. The first shielding shell 1 comprises three parts, so that the first shielding shell 1 is more convenient to manufacture, and the first shell 12 and the third shell 14 are only required to be respectively inserted into two ends of the second shell 13 before assembly.

Specifically, as shown in fig. 3, the first housing 12 may be screwed with the second housing 13, and the third housing 14 may be screwed with the second housing 13. The above arrangement enables the connection between the first casing 12, the second casing 13, and the third casing 14 to be more firm.

Or the first housing 12 may be snap-fitted with the second housing 13, and the third housing 14 may be snap-fitted with the second housing 13. The connection of the first housing 12, the second housing 13, and the third housing 14 is more facilitated.

The first housing 12, the second housing 13, and the third housing 14 are not limited to the above two connection methods, and any method may be used as long as the first housing 12 and the second housing 13 can be connected and the third housing 14 and the second housing 13 can be connected.

In at least one embodiment, as shown in fig. 3, the first housing 12 and the third housing 14 are respectively inserted into two ends of the second housing 13, the first housing 12 is screwed with the second housing 13, and the third housing 14 is screwed with the second housing 13.

In some embodiments, as shown in fig. 3, to facilitate the connection of the second shield shell 2 with other devices, the outer surface of the second shield shell 2 has a second connection structure 22 for connecting with other devices.

It should be noted that all the structures capable of realizing connection with other devices may be the second connection structure 22 mentioned in the above embodiments.

As shown in fig. 3, the second connecting structure 22 may be an external thread structure, the second connecting structure 22 may also be a snap structure, and so on.

The embodiment of the second aspect of the utility model provides a signal transmission coupling assembling, as shown in fig. 4 and fig. 5, including first lock pin 6, second lock pin 7 and above-mentioned anti-interference plug, first lock pin 6 is located in first shielding shell 1, and in second lock pin 7 was located second shielding shell 2, first lock pin 6 was used for pegging graft with the transmission of second lock pin 7 in order to realize the signal.

The utility model discloses the embodiment of the second aspect provides a signal transmission coupling assembling includes first lock pin, second lock pin and above-mentioned anti-interference plug, and signal transmission can be realized with the grafting of second lock pin to first lock pin, and the effect of electromagnetic shield jam-proof can be played with second shielding shell to the two outside first shielding shell. Compared with the prior art, the signal transmission connecting assembly can transmit signals more stably and has longer service life.

Specifically, the first ferrule 6 is fixedly connected with the inner wall of the first shielding shell 1, and the second ferrule 7 is fixedly connected with the inner wall of the second shielding shell 2. The first inserting core 6 and the second inserting core 7 respectively comprise an insulating base and a conductor, the conductor is connected with the insulating base, the insulating base is used for avoiding power transmission to the first shielding shell 1 and the second shielding shell 2, and the conductor is used for being connected with a wire to realize signal transmission.

In some embodiments, as shown in fig. 5, the signal transmission connection assembly further includes a first conductor 8 and a second conductor 9, the first conductor 8 being connected with the first ferrule 6, and the second conductor 9 being connected with the second ferrule 7. When the first ferrule 6 is inserted into the second ferrule 7, the first wire 8 and the second wire 9 are conducted to realize signal transmission.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides an anti-interference plug, its characterized in that includes first shielded cell (1), second shielded cell (2) and fixed cover (3), fixed cover (3) cover is located first shielded cell (1) with the outside of second shielded cell (2), just the both ends of fixed cover (3) respectively with first shielded cell (1) with second shielded cell (2) are connected, so that first shielded cell (1) with the tip of second shielded cell (2) offsets.

2. The tamper-resistant plug according to claim 1, wherein the first shielded housing (1) extends at least partially into the second shielded housing (2).

3. The tamper-resistant plug according to claim 2, wherein an elastic electrically conductive ring (4) is provided between the first shielding shell (1) and the second shielding shell (2).

4. The anti-tamper plug according to claim 3, characterized in that, in the axial direction of the elastic conductive ring (4), the elastic conductive ring (4) is provided with support rings (5) on both sides.

5. The interference resistant plug of claim 1 wherein said first shielded housing (1) has a retention slot (11) therein, said second shielded housing (2) has a first connecting structure (21) therein, a first end of said boot (3) is located within said retention slot (11), and a second end of said boot (3) is connected to said first connecting structure (21).

6. The tamper resistant plug of claim 5 wherein the first connecting structure (21) includes a protrusion for engaging an outer surface of the second shield can (2), the second end of the first shield can (1) being snap-fit into the protrusion.

7. The tamper resistant plug of claim 5 wherein the first shielded enclosure (1) comprises a first housing (12), a second housing (13) and a third housing (14);

the first shell (12) extends into the second shielding shell (2);

two ends of the second shell (13) are respectively connected with the first shell (12) and the third shell (14);

the limiting groove (11) is formed between the end part of the third shell (14) close to the second shell (13) and the outer surface of the second shell (13).

8. The tamper resistant plug of any one of claims 1-7 wherein the outer surface of the second shielded housing (2) has second connecting structure (22) for connecting with other equipment.

9. A signal transmission connection assembly, characterized by comprising a first ferrule (6), a second ferrule (7) and the tamper resistant plug according to any one of claims 1 to 8, wherein the first ferrule (6) is disposed in the first shielding housing (1), the second ferrule (7) is disposed in the second shielding housing (2), and the first ferrule (6) is used for being plugged with the second ferrule (7) to transmit signals.

10. The signal transmission connection assembly according to claim 9, further comprising a first conductor (8) and a second conductor (9), the first conductor (8) being connected with the first ferrule (6), the second conductor (9) being connected with the second ferrule (7).