CN215119334U

CN215119334U - EMI shielding type transmission plug device

Info

Publication number: CN215119334U
Application number: CN202120816158.1U
Authority: CN
Inventors: 蒋海红
Original assignee: XIANGYAO ELECTRONIC (SHENZHEN) CO Ltd
Current assignee: XIANGYAO ELECTRONIC (SHENZHEN) CO Ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-12-10
Anticipated expiration: 2031-04-20

Abstract

The utility model discloses an EMI shielded transmission plug device, including plug main part, PCB circuit board and transmission cable, plug main part and transmission cable be electric connection respectively at the both ends of PCB circuit board, PCB circuit board outside is provided with insulating centre form, the outside cladding of one end that insulating centre form and plug main part, transmission cable are close to PCB circuit board has the electrically conductive centre form of thermoplasticity, the outside cladding of the electrically conductive centre form of thermoplasticity has the plug external mold, transmission cable includes a plurality of signal transmission sinle silks and the cladding at the outside cable shielding layer of signal transmission sinle silk, the outside cladding of cable shielding layer has the cable insulating layer. The EMI shielding type transmission plug device has the advantages that the structure is simple, the production process is simple, the production efficiency is high, the product yield is high, the product size is small and the like, which are not possessed by the prior art.

Description

EMI shielding type transmission plug device

Technical Field

The utility model relates to an electric connection device, especially an EMI shielding formula transmission plug device.

Background

The signal transmission plug is a common basic component in the field of data transmission, and the application of the signal transmission plug is very wide. In the existing cable plug, in order to achieve the electromagnetic shielding function and prevent electromagnetic interference (EMI), shielding of external electromagnetic field interference is generally achieved by means of a metal shielding cover of a connector or by increasing 360-degree dead-angle-free cladding of a copper foil and metal weaving grounding of a cable, and a soft plastic outer sheath is further clad outside a metal shielding layer (or plastic and metal sheaths are penetrated). This results in the structure of plug device very complicated, and the production processes who adopts in the course of working are more, the process steps are comparatively complicated, has not only promoted manufacturing cost, and can lead to the volume that plug device occupy big, and the product is succinct pleasing to the eye inadequately.

Therefore, the present invention is directed to provide a new technical solution to solve the existing technical drawbacks.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an EMI shielding type transmission plug device, which solves the technical defects that the structure and the production process of the existing product are complex, the product cost is high, the product volume is large, and the product is not simple and beautiful.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides an EMI shielded transmission plug device, includes plug main part, PCB circuit board and transmission cable, plug main part and transmission cable be electric connection respectively at the both ends of PCB circuit board, PCB circuit board outside is provided with insulating centre form, the outside cladding of one end that insulating centre form and plug main part, transmission cable are close to PCB circuit board has the electrically conductive centre form of thermoplasticity, the outside cladding of the electrically conductive centre form of thermoplasticity has the plug external mold, the transmission cable includes a plurality of signal transmission sinle silks and the cladding is at the outside cable shielding layer of signal transmission sinle silk, the outside cladding of cable shielding layer has the cable insulating layer.

As an improvement of the above technical scheme, a core clamping plate is arranged at an end of the signal transmission core, a plurality of core clamping grooves are formed in the core clamping plate, a plurality of signal transmission cores are clamped in the core clamping grooves of the core clamping plate in a one-to-one correspondence manner, and the core clamping plate is internally coated with the thermoplastic conductive inner mold.

As a further improvement of the above technical solution, the PCB circuit board has a first PCB surface and a second PCB surface, the first PCB surface and the second PCB surface both have core pads that cooperate with the transmission cores, the ends of the signal transmission cores are welded to the core pads in one-to-one correspondence, and the exposed portions of the signal transmission cores and the core pads are covered by the inner insulating mold.

As a further improvement of the above technical solution, the main body includes a plug housing and a plug terminal located inside the plug housing, the plug terminal is fixed inside the plug housing through an insulating body, and the insulating body is covered inside by the thermoplastic conductive inner mold.

As a further improvement of the above technical solution, the inner end of the plug terminal has a terminal pin, the terminal pin extends from the inner side of the insulating body, the PCB has a first PCB surface and a second PCB surface, the first PCB surface and the second PCB surface both have a pin pad matching the terminal pin, the terminal pins are welded on the pin pads in a one-to-one correspondence, and the terminal pin and the pin pad are covered by the insulating inner mold.

As a further improvement of the above technical solution, the insulating inner mold is a PE insulating injection molding coating layer, and the PE insulating injection molding coating layer is used for coating the PCB circuit board, a pad on the PCB circuit board, and a component electrically connected to the pad.

As a further improvement of the above technical solution, the thermoplastic conductive inner mold is a thermoplastic conductive plastic layer formed by injection molding.

As a further improvement of the above technical solution, the plug outer mold is one of a thermoplastic outer shell, a thermosetting outer shell, a metal outer shell and a plastic outer shell, and is wrapped outside the thermoplastic conductive inner mold.

The utility model has the advantages that: the utility model provides a EMI shielded transmission plug device, this kind of EMI shielded transmission plug device is provided with the electrically conductive centre form of thermoplasticity and cable insulating layer, replace traditional metal shield shell through the electrically conductive centre form of thermoplasticity, not only can simplify plug device's structure by a wide margin, and can reduce the processing step, simplify production technology, and the reduction in production cost, production efficiency is promoted by a wide margin, can promote the yields and the shielding efficiency of product, the volume of product is littleer, the appearance is more brief pleasing to the eye, the market competition of product has greatly been promoted.

In conclusion, the EMI shielding type transmission plug device solves the technical defects of complex structure and production process, high product cost, large product volume, simplicity, attractiveness and the like of the existing product.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a structural exploded view of the present invention;

FIG. 3 is a schematic view of the assembly of the transmission cable and the cable core clamping plate according to the present invention;

fig. 4 is an assembly diagram of the plug main body, the PCB, the transmission cable and the core card board according to the present invention;

FIG. 5 is a schematic view of the production process of the present invention with an insulating inner mold;

FIG. 6 is a schematic view of a production process for installing a thermoplastic conductive inner mold according to the present invention;

fig. 7 is a schematic view of the production flow of the external mold for installing the plug of the present invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The technical features of the present invention can be combined interactively without conflicting with each other, as shown in fig. 1 to 7.

The utility model provides an EMI shielded transmission plug device, includes plug main part 1, PCB circuit board 2 and transmission cable 3, plug main part 1 and transmission cable 3 be electric connection respectively at the both ends of

PCB circuit board

2, 2 outsides of PCB circuit board are provided with insulating centre form 4, the outside cladding of one end that insulating centre form 4 and plug main part 1, transmission cable 3 are close to PCB circuit board 2 has the electrically conductive centre form of thermoplasticity 5, the outside cladding of the electrically conductive centre form of thermoplasticity 5 has plug external mold 6, transmission cable 3 includes a plurality of signal transmission sinle silks 31 and the cladding at the outside cable shielding layer 32 of signal transmission sinle silk 31, the outside cladding of cable shielding layer 32 has cable insulating layer 33.

Preferably, the insulating inner mold 4 is a PE insulating injection molding coating layer, and the PE insulating injection molding coating layer is used for coating the PCB circuit board 2, a bonding pad on the PCB circuit board 2, and a component electrically connected with the bonding pad; the thermoplastic conductive inner die 5 is a thermoplastic conductive plastic layer formed by injection molding; the plug outer mold 6 is one of a thermoplastic shell, a thermosetting shell, a metal shell and a plastic shell and is coated outside the thermoplastic conductive inner mold 5.

Specifically, a wire core clamping plate 7 is arranged at the end part of the signal transmission wire core 31, a plurality of wire core clamping grooves are formed in the wire core clamping plate 7, a plurality of signal transmission wire cores 31 are clamped in the wire core clamping grooves of the wire core clamping plate 7 in a one-to-one correspondence manner, and the wire core clamping plate 7 is coated inside by the thermoplastic conductive inner mold 5; the PCB circuit board 2 is provided with a PCB first surface and a PCB second surface, the PCB first surface and the PCB second surface are respectively provided with a wire core bonding pad 21 matched with the transmission wire core 31, the end parts of the signal transmission wire cores 31 are welded on the wire core bonding pads 21 in a one-to-one correspondence mode, and the exposed parts of the signal transmission wire cores 31 and the wire core bonding pads 21 are wrapped inside the insulating inner die 4.

Preferably, the main body 1 includes a plug housing 11 and a plug terminal 12 located inside the plug housing 11, the plug terminal 12 is fixed inside the plug housing 11 through an insulating body 13, and the insulating body 13 is covered by the thermoplastic conductive inner mold 5; the inner end of the plug terminal 12 is provided with a terminal pin 14, the terminal pin 14 extends out of the inner side of the insulating body 13, the PCB 2 is provided with a PCB first surface and a PCB second surface, the PCB first surface and the PCB second surface are both provided with pin bonding pads matched with the terminal pins, the terminal pins 14 are welded on the pin bonding pads in a one-to-one correspondence manner, and the terminal pins 14 and the pin bonding pads are coated in the insulating inner die 4.

Detailed implementation the utility model discloses in the time, insulating inner membrance 4 adopts PE insulating material, and its cladding is on exposed end of signal transmission sinle silk 31 of transmission cable 3, the pad on PCB board 2 and the terminal pin 14 of plug main part 1, prevents to mould plastics the electrically conductive centre form 5 of thermoplasticity causes the short circuit, the electrically conductive centre form 5 of thermoplasticity has the shielding function, and shielding function is stronger, and it utilizes injection moulding's electrically conductive plastics cladding outside signal transmission sinle silk 31, sinle silk cardboard 7, plug main part 1 and insulating centre form 4 of transmission cable 3, reaches holistic shielding effect.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims

1. An EMI shielded transmission plug assembly, comprising: including plug main part (1), PCB circuit board (2) and transmission cable (3), plug main part (1) and transmission cable (3) be electric connection respectively at the both ends of PCB circuit board (2), PCB circuit board (2) outside is provided with insulating centre form (4), the outside cladding of one end that insulating centre form (4) and plug main part (1), transmission cable (3) are close to PCB circuit board (2) has the electrically conductive centre form of thermoplasticity (5), the electrically conductive centre form of thermoplasticity (5) outside cladding has plug external mold (6), transmission cable (3) include a plurality of signal transmission sinle silks (31) and cladding at the outside cable shielding layer (32) of signal transmission sinle silk (31), the outside cladding of cable shielding layer (32) has cable insulating layer (33).

2. The EMI shielded transmission plug assembly of claim 1, wherein: the signal transmission sinle silk (31) tip is provided with sinle silk cardboard (7), a plurality of sinle silk draw-in grooves have on sinle silk cardboard (7), many signal transmission sinle silk (31) card is established one-to-one in the sinle silk draw-in groove of sinle silk cardboard (7), sinle silk cardboard (7) quilt the electrically conductive centre form of thermoplasticity (5) cladding is inside it.

3. The EMI shielded transmission plug assembly of claim 2, wherein: the PCB circuit board (2) is provided with a PCB first surface and a PCB second surface, the PCB first surface and the PCB second surface are respectively provided with a wire core bonding pad (21) matched with the transmission wire core (31), the end parts of the signal transmission wire cores (31) are welded on the wire core bonding pad (21) in a one-to-one correspondence mode, and the exposed parts of the signal transmission wire cores (31) and the wire core bonding pads (21) are coated inside the insulating inner die (4).

4. The EMI shielded transmission plug assembly of claim 1, wherein: the main body (1) comprises a plug outer shell (11) and a plug terminal (12) located inside the plug outer shell (11), the plug terminal (12) is fixed inside the plug outer shell (11) through an insulating body (13), and the insulating body (13) is wrapped inside the thermoplastic conductive inner die (5).

5. The EMI shielded transmission plug assembly of claim 4, wherein: the inner end of the plug terminal (12) is provided with a terminal pin (14), the terminal pin (14) extends out of the inner side of the insulating body (13), the PCB (2) is provided with a first PCB surface and a second PCB surface, the first PCB surface and the second PCB surface are provided with pin bonding pads matched with the terminal pin, the terminal pins (14) are welded on the pin bonding pads in a one-to-one correspondence mode, and the terminal pin (14) and the pin bonding pads are coated inside the insulating inner die (4).

6. The EMI shielded transmission plug assembly of claim 1, wherein: the insulation inner die (4) is a PE insulation injection molding coating layer, and the PE insulation injection molding coating layer is used for coating a welding disc on the PCB circuit board (2) and parts electrically connected with the welding disc.

7. The EMI shielded transmission plug assembly of claim 1, wherein: the thermoplastic conductive inner die (5) is a thermoplastic conductive plastic layer formed by injection molding.

8. The EMI shielded transmission plug assembly of claim 1, wherein: the plug outer die (6) is one of a thermoplastic shell, a thermosetting shell, a metal shell and a plastic shell and is coated outside the thermoplastic conductive inner die (5).