TWM472983U - High frequency signal connector having structure for preventing external electromagnetic interference - Google Patents

Description

High frequency signal connector with external electromagnetic interference prevention structure

A crosstalk prevention connector, in particular, a high frequency signal connector having a structure for preventing external electromagnetic interference for high frequency signals.

In recent years, the electronics industry has become a miniaturization of electronic products. For the convenience of carrying, such as notebooks, tablet computers and smart phones, the internal space is often reduced due to the narrowing of the volume, so that the internal electronic components are in close proximity to each other; Interference with EMI (ElectroMagnetic Interference). For example, two adjacent USB connectors, one with a wireless mouse's signal transceiver and the other with an external hard drive. When the external hard disk transmits a large amount of information through the USB connector, the high frequency electrical signal is serially connected to the adjacent USB connector via the USB connector, and the noise increases the wireless mouse's signal-to-noise ratio, thereby affecting the wireless sliding. The mouse's signal transmission prevents the computer from accurately capturing the instructions that execute the mouse.

In the case of the above-mentioned crosstalk, in the case of miniaturization of the electronic product, the shape is greatly reduced. Since the width of the connector can be reduced, the interval between adjacent connectors is limited. If the electromagnetic interference between adjacent connectors cannot be solved, The reliability of the electronic device will decrease. In contrast, if the connector and the electronic device such as a computer or mobile phone can be ensured, the whole casing can be used as the grounding of the connector, and the electromagnetic oscillation of the high frequency can be absorbed, and the casing can be used as the hinterland of the connector to enhance the shielding effect. Avoid electromagnetic interference between electronic components.

The prior art is focused on the addition of a deformation structure. As shown in FIG. 1 , the metal housing 210 of the connector is bent upwardly to extend a section of the connecting portion 310 , and the connecting portion 310 is cut symmetrically and has a meandering opening 311 . And the elastic portion 320 is bent and shaped such that the two elastic portions 320 are warped by the plane of the connecting portion 310 to form a protruding flexible tongue, so that the elastic portion 320 can be flexibly contacted when the connector is soldered to the circuit board. The housing of the electronic product completely connects the connector to the electronic product casing to achieve the grounding effect.

Since the connecting portion and the elastic portion both extend from the upper side of the metal casing, the thickness is equal to that of the metal casing, and once the selected metal piece is thick and not easily bent, on the one hand, the above structure is difficult to form smoothly; on the other hand, even Reluctantly formed, the elastic part is also difficult to elastically retreat, not only can not ensure good electrical contact with the casing, but also the casing can not be tightly closed, resulting in more serious electromagnetic interference in and out.

In addition, as shown in FIG. 2, the prior art discloses a solution in which a connector-like outer casing is connected with a box-shaped covering structure. The covering structure 20 includes a piece of bent body (not labeled) and a plurality of elastic pieces 26 bent from one side edge of the body, since the body portion of the covering structure 20 is in accordance with the structural size of the connector The bending is formed so that the covering structure 20 can be completely tightly fitted to the outside of the connector.

The disadvantage is that the size, length and width of the covering structure and the bending angle are completely customized according to the specific connector size, and the application has no elasticity and cannot be temporarily socketed to other specifications. Therefore, regardless of the storage or use of the preparation or finished product, it must be pre-calculated. Once the demand is reduced, it will cause waste, so that the cost will increase unnecessarily; on the contrary, it will be difficult to respond immediately when the output is temporarily added, which will cause delay.

Furthermore, the need to sleeve the cladding structure to the outside of the connector requires better precision. A slight deviation in the process of wearing the sleeve will cause the structure of the cladding structure to be distorted, resulting in a reduction in product yield and an increase in processing cost. In particular, this design requires a multi-faceted coating, such as a continuous three-to-four-sided bending structure to securely clamp the connector, while actually contacting the housing of the electronic product for conduction, usually only one side, also means unnecessary The waste of materials makes this solution bring many negative effects.

The various improved versions of the connectors described above have problems such as high cost, difficulty in assembly to electronic products, specialization of components, low conversion flexibility, low combined manufacturing yield, and wasted resources. The novel system simultaneously perfects the above problems, and discloses a metal shrapnel which is applied to various types and sizes of connectors, which not only has high flexibility, but also makes the connector easy to assemble, and has a simple structure, less material consumption, and application flexibility. Large, low cost, especially saving the processing precision and time spent assembling to the connector.

An object of the present invention is to provide a high-frequency signal connector having a structure for preventing external electromagnetic interference, which has a simple structure for preventing external electromagnetic interference and can be applied to various types of connectors.

Another object of the present invention is to provide a high frequency signal connector having a structure for preventing external electromagnetic interference, which is easy to manufacture and reduces processing cost.

Still another object of the present invention is to provide a high frequency signal connector having a structure for preventing external electromagnetic interference, which is easy to assemble and has an effective improvement in manufacturing yield.

The present invention is a high-frequency signal connector having a structure for preventing external electromagnetic interference, which is disposed on a circuit board and is connected to a conductive casing. The connector includes: a dielectric body; and a plurality of embedded bodies on the dielectric body a conductive terminal for soldering to the above circuit board; a conductive housing disposed outside the dielectric body; and a metal dome disposed on the conductive housing, the metal dome is composed of a flat section and at least one tongue segment; wherein the flat segment is a base portion and at least one tongue root portion extending from the base portion, wherein the base portion is connected to the conductive housing, and the base portion and the tongue root portion are coplanar; and the at least one tongue segment is formed by at least one of the foregoing The base of the tongue is bent and extended, and the at least one tongue segment is formed with an elastic pressure receiving portion away from the conductive housing for being guided to the conductive casing.

The high-frequency signal connector having the structure for preventing external electromagnetic interference is disclosed in the present invention. The metal dome is disposed on the conductive shell, and the metal dome can be cut off from the base according to the width and narrowness of the conductive shell, so as to be installed differently. It is used on the conductive housing of the size specification, even on multiple surfaces of the same connector, to improve the elasticity of use; since the metal dome is separately manufactured from the conductive housing, the elasticity of the metal dome can ensure that the conductive shell after the metal dome is mounted The body is smoothly guided to the conductive casing to achieve a good grounding effect. The width of the metal shrapnel can be trimmed according to the width of the product. It is not necessary to prepare a variety of specifications, and the preparation and manufacturing costs are reduced. In particular, the case only needs to install metal shrapnel at the key points to save unnecessary material waste, thereby achieving the above improvement.

4‧‧‧Electrical terminals

5‧‧‧ dielectric body

6, 6'‧‧‧ conductive housing

60, 60' ‧ ‧ top wall

61‧‧‧ bottom wall

62‧‧‧ left wall

63‧‧‧ right wall

64’‧‧‧Installation wall

7'‧‧‧ Conductive adhesive layer

8, 8'‧‧‧ metal shrapnel

80, 80’ ‧ ‧ flat section

800‧‧‧ base

801‧‧‧ tongue root

81‧‧ ‧ tongue fragment

811‧‧‧Elastic compression department

20‧‧‧Cover construction

26‧‧‧Shrap

210‧‧‧Metal housing

310‧‧‧Link Department

311‧‧‧ openings

320‧‧‧Flexible Department

1 is a perspective view of a prior art; FIG. 2 is a perspective view of a prior art cladding structure; FIG. 3 is a perspective view of the high-definition multimedia interface connector of the first embodiment, illustrating the structure of a conductive housing and a metal dome; 4 is a front view of the first embodiment of the present invention, illustrating the case where the metal dome is spot-welded to the conductive housing; FIG. 5 is a perspective view of the metal elastic piece of the first embodiment of the present invention, illustrating a state in which the tongue piece is bent and extended, and a flat section is located on a flat surface; FIG. 6 is a top view of the metal elastic piece of the first embodiment, illustrating the base of the tongue and extending FIG. 7 is a perspective view of the second embodiment, illustrating that the metal dome is adhered to the mounting wall through a layer of conductive adhesive; FIG. 8 is the side of the second embodiment. The view shows the connection relationship between the metal dome and the mounting wall.

In the first preferred embodiment of the present invention, please refer to FIG. 3 to FIG. 6 together, which is a high-definition multimedia interface connector (HDMI), which is provided on a circuit board and includes a conductive housing 6. The conductive housing 6 has a top wall 60; a bottom wall 61 opposite the top wall 60; and a left side wall 62 and a right side wall 63 connecting the top wall 60 and the bottom wall 61. The top wall 60, the bottom wall 61, the left side wall 62, and the right side wall 63 collectively enclose a dielectric body 5 therein, and a plurality of conductive terminals 4 are embedded in the dielectric body 5. The conductive terminal 4 extends and is electrically connected to the circuit board.

In this example, a metal dome 8 is mounted above the top wall 60 of the conductive housing 6. The metal dome 8 of the present invention is formed by, for example, a long and thin sheet-like beryllium copper, as shown in Figs. Extend from the upper left to the lower right in Figure 5. The metal dome 8 includes an elongated base 800 extending along the direction of the metal dome 8. For ease of explanation, the extension direction is defined herein as a long direction, which is extended by the flat base 800 along the long direction and regularly spaced. There is a plurality of tongue roots 801, and a tongue segment 81 is bent by each tongue root 801. Thereby, it can be mechanically The base 800 between any two adjacent tongue roots 801 is operatively or manually operative to obtain a metal dome 8 of the desired width.

And since the sheared base 800 and all of the tongue roots 801 are all in the same plane (not labeled), it is defined herein as a length of flat section 80 for ease of illustration. Each of the tongue segments 81 is respectively extended by a corresponding tongue root portion 801, and is formed with an elastic pressure receiving portion 811 bent away from the conductive housing 6, in this example, in order to prevent the elastic pressure receiving portion 811 from being upwardly lifted. The free end causes the operator to be cut, and the elastic compression portion 811 further includes a fold such that the final free end (not numbered) of each tongue segment 81 is bent back toward the plane.

Therefore, when the tongue segment 81 deviating from the flat surface is pressed, the elastic pressure receiving portion 811 can provide sufficient elasticity to retreat to the lower side of the figure, so that the tongue segment 81 is smoothly electrically connected to the conductive housing 6 and, for example. The casing of the electronic device. And as will be readily understood by those skilled in the art, although the metal dome in this example has six tongue segments 81, in practical applications, in the narrowest case, the metal dome 8 may have only one tongue segment 81.

After being cut into the metal dome 8 according to the use requirement, the flat section 80 is mounted to the conductive housing 6 through the base 800 by means of spot welding, and the conductive housing 6 of the connector and the casing of the product are mounted. Electrical connection. Thereby, the casing can buffer a large amount of high-frequency noise from the conductive shell of the connector, so that the noise of one connector is not easily connected in series to the adjacent connector, and even interferes with the signal transmission of the adjacent connector. Of course, according to the spirit of the present invention, the connection position of the base is not limited to the top wall, and the mounting manner is not limited to spot welding, and may be attached to the bottom wall, the left and right side walls, or both at the same time, for example, by conductive bonding. The wall.

When the above connector is packaged in an electronic product, since the above-mentioned metal dome is separately manufactured, its elasticity can be expected to be expected, and each of the pressed elastic pressure portions is slightly deformed, The connector can be inserted into the predetermined position, and the housing of the electronic product is not incapable of being sealed by the connector during assembly. The tongue segment provides an elastic restoring force to ensure that the conductive housing of the connector is electrically connected to the casing of the electronic product, thereby improving the high-frequency signal transmission capability of the electronic product.

The connector of the second preferred embodiment of the present invention is a universal serial bus connector (USB). As shown in FIGS. 7 to 8, the top wall 60' of the conductive housing 6' is bent and extended to a section and the top wall. 60' approaching the vertical mounting wall 64', the flat section 80' of the metal dome 8' is disposed over the mounting wall 64' of the conductive housing 6' through a layer of electrically conductive adhesive layer 7'. Such a setting is in line with the needs of some specific electronic products. When installed in an electronic product, the top wall, the bottom wall and the left and right side walls of the high-frequency signal connector having the external electromagnetic interference preventing structure are integrally surrounded by the opening, and the opening of the casing of the electronic product is to be The built-in conductive terminals are exposed for guiding.

In this way, the mounting wall extending perpendicularly from the top wall will be parallel to the conductive casing of the electronic product. In this example, the metal dome is disposed on the mounting wall to electrically conduct the conductive housing of the present example. The conductive casing. Of course, in this case, the mounting wall can be bent and then bent, so that the mounting wall is flatly attached to the top surface of the conductive casing, so that the top surface of the conductive casing is electrically connected to the conductive casing. However, it is also within the scope of application of this creation to simply modify the mounting wall and the conductive housing in a similar manner, and then connect the metal shrapnel of the present case.

Through the structure of the case, it can be flexibly applied to connectors of different sizes or different surfaces of the same connector, thereby increasing the flexibility of the application. And tailor the metal shrapnel for the position to be set, and install it with conductive adhesive or spot welding. Effectively avoid the problem that the connector's conductive shell is too thick and the metal shrapnel lacks elasticity; compared with the previous socketing method, the case further improves the use efficiency, reduces material waste, and saves the time required for processing.

However, the above description is only the preferred embodiment of the present creation. The scope of the implementation of this book, that is, the simple equivalent changes and modifications made by the company in accordance with the scope of the patent application and the content of the new manual are still within the scope of this new patent.

4‧‧‧Electrical terminals

5‧‧‧ dielectric body

6‧‧‧Electrical housing

60‧‧‧ top wall

63‧‧‧ right wall

8‧‧‧Metal shrapnel

Claims (8)

A high-frequency signal connector having a structure for preventing external electromagnetic interference is disposed on a circuit board and is connected to a conductive casing, the connector includes: a dielectric body; and a plurality of conductive materials buried in the dielectric body a terminal for soldering to the circuit board; a conductive housing covering the outside of the dielectric body; and a metal dome disposed on the conductive housing, the metal dome being a flat section and at least one tongue segment Combining the flat section, wherein the flat portion is formed by a base portion and at least one tongue root portion extending from the base portion, and the base portion is connected to the conductive shell, and the base portion and the tongue root portion are coplanar; And the at least one tongue segment is bent from the at least one tongue root portion, and the at least one tongue segment is formed with an elastic pressure receiving portion away from the conductive shell for being guided to the conductive casing. For example, the high-frequency signal connector having the structure for preventing external electromagnetic interference is included in the first item of the patent application, and further includes a conductive adhesive layer between the conductive housing and the metal dome. A high frequency signal connector having a structure for preventing external electromagnetic interference according to the first aspect of the patent application, wherein the conductive housing includes a top wall, a bottom wall opposite to the top surface, and a left side connecting the top wall and the bottom wall, Right side wall. A high frequency signal connector having a structure for preventing external electromagnetic interference according to the third aspect of the patent application, wherein the conductive housing further includes a mounting wall bent from the top wall, and the flat section of the metal dome is coupled to The mounting wall. If the patent application scope 3 has a high frequency signal connector for preventing external electromagnetic interference structure, The flat section of the metal dome is bonded to the top wall. A high frequency signal connector having a structure for preventing external electromagnetic interference, as in claim 3, wherein the flat section of the metal dome is bonded to the left and right side walls. For example, the first aspect of the patent application has a high frequency signal connector for preventing an external electromagnetic interference structure, wherein the connector is a high definition multimedia interface connector. For example, the first aspect of the patent application has a high frequency signal connector for preventing an external electromagnetic interference structure, wherein the connector is a universal serial bus connector.