TW202034590A - Electrical device and electromagnetic compatibility component of electric connector thereof - Google Patents

Abstract

An electromagnetic compatibility component of an electrical connector includes a main body, a clamping unit and an electrical contacting unit. The main body has a first sidewall, a second sidewall and a bottom plate. The first sidewall is disposed opposite to the second sidewall, and the bottom plate is connected to a first bottom side of the first sidewall and a second bottom side of the second sidewall. The clamping unit has a first resisting part and a second resisting part. The first resisting part is disposed along the first sidewall, and the second resisting part is disposed along the second sidewall, wherein at least a portion of the first resisting part and at least a portion of the second resisting part are lied in the first sidewall and the second sidewall in a projecting direction. The electrical contacting unit is protruding the main body to contact an external electrical conductor.

Description

Electromagnetic compatibility prevention component of electronic device and its electrical connector

The invention relates to an electronic device and its electrical connector components, in particular to an electronic device that can improve electromagnetic compatibility and an electromagnetic compatibility prevention component of its electrical connector.

With the increasing advancement of electronic technology, the electronic devices produced along with research and development bring people a richer and more convenient living environment, such as computers or mobile communication devices. However, when the surrounding area is filled with more and more electronic devices, and the data transmission speed is getting faster and faster, these electronic devices or the electronic devices themselves may encounter electromagnetic compatibility (EMC) problems.

Electromagnetic compatibility is the study of the generation, transmission and reception of accidental electromagnetic energy in electricity, and the harmful effects caused by this electromagnetic energy. The goal of electromagnetic compatibility is that in the same environment, different devices involving electromagnetic phenomena can operate normally, and no unbearable electromagnetic interference (EMI) or electrostatic discharge interference (electro static discharge) will be caused to any device in this environment. , ESD) capabilities.

Electromagnetic interference refers to any electromagnetic phenomenon that is caused by conduction or electromagnetic field accompanied by voltage and current that will reduce the performance of a device, equipment or system, or may have an adverse effect on living things or substances. The electrostatic discharge phenomenon refers to the phenomenon that when the positive or negative charge of static electricity gradually accumulates, it will generate a potential difference with the surrounding environment, and transfer between different potentials through the discharge path.

In order to avoid electromagnetic interference or electrostatic discharge interference during signal transmission, the traditional method usually uses conductive sponge or aluminum foil to ground. However, the aforementioned The method has disadvantages such as difficult assembly and easy falling off.

In addition, in electronic devices, an electrical connector is a basic conductor device that connects electrical circuits. It is widely used in various electrical circuits and has the function of connecting or disconnecting circuits. This connection may be temporary and easy to plug and unplug at any time, or it may be a permanent junction between electrical equipment or wires. Accordingly, electromagnetic interference or electrostatic discharge may enter the electronic device through the electrical connector, or be transmitted from the electronic device to the outside. Therefore, how to prevent electromagnetic compatibility for electrical connectors is indeed one of the current important issues.

In view of the above, one object of the present invention is to provide an electromagnetic compatibility prevention component of an electronic device and its electrical connector to improve the effectiveness of electromagnetic compatibility prevention.

To achieve the above objective, the present invention provides an electromagnetic compatibility prevention assembly of an electrical connector, which includes a body, a clamping unit, and an electrical contact unit. The body has a first side wall, a second side wall, and a bottom plate. The first side wall and the second side wall are arranged opposite to each other, and the bottom plate is connected to a first bottom side of the first side wall and a second side wall. Bottom side. The clamping unit has a first abutting top extending on the first side wall and a second abutting top extending on the second side wall. At least part of the first abutting top and the second abutting top are located between the first side wall and the second side wall in a projection direction. The electrical contact unit is protrudingly arranged on the main body for contacting an external conductor.

According to an embodiment of the present invention, the first abutment portion is extended from a first top side of the first side wall relative to the first bottom side. In addition, the second abutting top portion is extended from the second side wall relative to a second top side of the second bottom side.

According to an embodiment of the present invention, the electrical contact unit has a first electrical contact portion, a second electrical contact portion and/or a third electrical contact portion. The first electrical contact portion is extended on the first front side of the first side wall, the second electrical contact portion is extended on the second front side of the second side wall, and the third electrical contact portion is extended on the bottom plate A third front side.

According to an embodiment of the present invention, the electromagnetic compatibility prevention assembly further includes an auxiliary fixing unit, which is extended on the third electrical contact portion and opposite to the bottom plate Set up. The auxiliary fixing unit may have a convex portion, which is directed toward the direction of the bottom plate.

According to an embodiment of the present invention, the electrical contact unit has a fourth electrical contact portion and/or a fifth electrical contact portion. The fourth electrical contact portion is extended on the first bottom side of the first side wall, and the fifth electrical contact portion is extended on the second bottom side of the second side wall. In addition, the fourth electrical contact portion and/or the fifth electrical contact portion are respectively extended toward the other direction of the bottom plate.

According to an embodiment of the present invention, the first abutment portion and the second abutment portion are respectively "ㄑ"-shaped.

In addition, in order to achieve the above objective, the present invention provides an electronic device, which includes a conductive housing, a circuit board, an electrical connector, and an electromagnetic compatibility prevention component. The circuit board is arranged on the conductive shell. The electrical connector is arranged on a surface of the circuit board and has a connecting port. The electromagnetic compatibility prevention component is arranged between the circuit board and the electrical connector, and a first conductive path is established between the conductive housing and the electrical connector, and a second conductive path is established between the circuit board and the electrical connector path. In addition, the electromagnetic compatibility prevention component includes a body, a clamping unit, and an electrical contact unit. The body has a first side wall, a second side wall, and a bottom plate. The first side wall and the second side wall are arranged opposite to each other, and the bottom plate is connected to a first bottom side of the first side wall and a second side wall. Bottom side. The clamping unit has a first abutting top extending on the first side wall and a second abutting top extending on the second side wall. At least part of the first abutting top and the second abutting top are located between the first side wall and the second side wall in a projection direction. In addition, some electrical connectors are clamped between the body and the clamping unit. The electrical contact unit is protrudingly arranged on the main body for contacting the circuit board and the conductive shell respectively.

According to an embodiment of the present invention, the aforementioned first electrical contact portion, second electrical contact portion and/or third electrical contact portion can be electrically contacted with the conductive housing.

According to an embodiment of the present invention, one side of the circuit board is clamped between the auxiliary fixing unit and the bottom plate.

According to an embodiment of the present invention, the auxiliary fixing unit has a convex portion facing the bottom plate and fixed to a concave portion of the circuit board.

According to an embodiment of the present invention, wherein the aforementioned fourth electrical connection The contact portion and/or the fifth electrical contact portion may be in electrical contact with at least one conductive connection portion of the circuit board.

As mentioned above, the electromagnetic compatibility prevention component of an electronic device and its electrical connector of the present invention is achieved by adding an electromagnetic compatibility prevention component between the electrical connector and the circuit board or between the electrical connector and the conductive housing. At the same time, the electromagnetic interference or electrostatic discharge interference of the electrical connector is conducted to the ground terminal of the circuit board or the conductive shell, thereby reducing the influence of electromagnetic interference and electrostatic discharge on the electronic device, and can effectively improve the electromagnetic compatibility of the electronic device.

10‧‧‧Electromagnetic compatibility prevention components

11‧‧‧Ontology

111‧‧‧First side wall

1111‧‧‧First bottom side

1112‧‧‧First top side

1113‧‧‧First front

112‧‧‧Second side wall

1121‧‧‧Second bottom side

1122‧‧‧Second top side

1123‧‧‧Second front side

113‧‧‧Bottom plate

1133‧‧‧The third front side

12‧‧‧Clamping unit

121‧‧‧First to the top

122‧‧‧Second to the top

13‧‧‧Electrical contact unit

131‧‧‧First electrical contact

132‧‧‧Second electrical contact

133‧‧‧The third electrical contact

134‧‧‧Fourth electrical contact

135‧‧‧Fifth electrical contact

14‧‧‧Auxiliary fixing unit

141‧‧‧Protrusion

20‧‧‧Electrical connector

21‧‧‧Outer shell

22‧‧‧Port

30‧‧‧Circuit board

31‧‧‧Conductive connection part

40‧‧‧Electronic device

41‧‧‧Conductive shell

D1‧‧‧First distance

D2‧‧‧Second distance

Figure 1 is a schematic diagram showing an electromagnetic compatibility prevention component according to a preferred embodiment of the present invention.

FIG. 2 is a schematic diagram showing the implementation of the electromagnetic compatibility prevention component combined with the electrical connector according to the preferred embodiment of the present invention.

FIG. 3 is a schematic diagram showing the appearance of an electronic device according to a preferred embodiment of the present invention.

FIG. 4 is a schematic diagram showing the implementation of the electromagnetic compatibility prevention component combined with the electrical connector and the circuit board according to the preferred embodiment of the present invention.

The following will describe an electronic device and an electromagnetic compatibility prevention component of its electrical connector according to a preferred embodiment of the present invention with reference to related drawings. Among them, the same components will be described with the same component symbols.

Please refer to FIG. 1, the electromagnetic compatibility prevention component 10 of the preferred embodiment of the present invention includes a main body 11, a clamping unit 12, an electrical contact unit 13 and an auxiliary fixing unit 14. Wherein, the main body 11, the clamping unit 12, the electrical contact unit 13, and the auxiliary fixing unit 14 may be combined by separate components, or may be integrally formed. In addition, the main body 11, the clamping unit 12, the electrical contact unit 13, and the auxiliary fixing unit 14 are made of conductive material, such as metal or conductive rubber. Among them, the metal is preferable, such as silver, copper, or gold. , Aluminum, iron or their alloys.

The body 11 has a first side wall 111, a second side wall 112, and a Bottom plate 113. The bottom plate 113 is respectively connected to a first bottom side 1111 of the first side wall 111 and a second bottom side 1121 of the second side wall 112, and the first side wall 111 and the second side wall 112 are disposed oppositely. In other words, the overall appearance of the main body 11 is "ㄩ" when viewed from one side.

The clamping unit 12 has a first abutting portion 121 and a second abutting portion 122. Wherein, the first abutment portion 121 is extended on a first top side 1112 of the first side wall 111 of the main body 11, and the second abutment portion 122 is extended on a second top side 1122 of the second side wall 112 of the main body 11 . On the other hand, in order to be able to hold the object, the first abutment section 121 extends from the first side wall 111 toward the second side wall 112, and the second abutment section 122 extends from the second side wall 112 toward the first side wall 111. extend. In other words, at least part of the first abutting portion 121 and the second abutting portion 122 are located between the first side wall 111 and the second side wall 112 in a projection direction. In more detail, the shortest first distance D1 between the first abutting portion 121 and the second abutting portion 122 is smaller than the shortest second distance D2 between the first sidewall 111 and the second sidewall 112. In addition, in this embodiment, the first abutment portion 121 and the second abutment portion 122, when viewed from one side thereof, are respectively in the shape of "ㄑ", or may be arc-shaped.

The electrical contact unit 13 is protrudingly provided on the main body 11 for contacting an external conductor. In this embodiment, the electrical contact unit 13 has a first electrical contact 131, a second electrical contact 132, a third electrical contact 133, a fourth electrical contact 134, and a first electrical contact. Five electrical contacts 135. In this embodiment, the first electrical contact portion 131, the second electrical contact portion 132, and the third electrical contact portion 133 are respectively in the shape of an arc-shaped sheet, and the fourth electrical contact portion 134 and the fifth electrical contact portion 134 The parts 135 are in the shape of flat plates. However, in other embodiments, the shape of the electrical contact portion is not limited to this, and the main purpose is to be able to make electrical contact with an external conductor.

The first electrical contact portion 131 is protruding along a first front side 1113 of the first side wall 111, the second electrical contact portion 132 is protruding along a second front side 1123 of the second side wall 112, and the third The electrical contact portion 133 protrudes along a third front side 1133 of the bottom plate 113. Wherein, the first electrical contact portion 131 extends from the first front side 1113 toward a direction away from the second side wall 112, the second electrical contact portion 132 extends from the second front side 1123 toward a direction away from the first side wall 111, and the first Three electrical contacts 133 series It extends from the third front side 1133 toward a direction away from the extending direction of the first side wall 111 and the second side wall 112.

The auxiliary fixing unit 14 extends to the third electrical contact portion 133 and is opposite to the bottom plate 113. Wherein, there is a space between the auxiliary fixing unit 14 and the bottom plate 113 to sandwich an object, so that the electromagnetic compatibility prevention assembly 10 is fixed on the object. In addition, the auxiliary fixing unit 14 also has a convex portion 141 facing the bottom plate 113, which can be combined with a corresponding concave portion on the object to achieve a more stable fixing.

Hereinafter, please refer to FIG. 2 to illustrate the implementation of the above-mentioned electromagnetic compatibility prevention assembly 10 combined with an electrical connector 20. As shown in FIG. 2, the electrical connector 20 has an outer housing 21 and a connection port 22. Wherein, the outer shell 21 is made of metal material, and the connection port 22 is used for electrical connection with a connection terminal. The electrical connector 20 may be a universal serial bus (USB), a high-definition multimedia interface (High Definition Multimedia Interface, HDMI), or a Thunderbolt (Thunderbolt) electrical connector with high-speed transmission capability.

The electrical connector 20 is located in an opening formed by the main body 11 of the electromagnetic compatibility prevention assembly 10 and the clamping unit 12, and the first abutting portion 121 and the second abutting portion 122 of the clamping unit 12 are respectively pressed against the electrical The connector 20 has an outer shell 21 to clamp and fix the electrical connector 20.

Next, please refer to FIGS. 3 and 4 again to illustrate the electronic device 40 of the preferred embodiment of the present invention. As shown in FIG. 3, the electronic device 40 includes a conductive housing 41, a circuit board 30, an electrical connector 20 and an electromagnetic compatibility prevention component 10. The circuit board 30 is disposed in the conductive housing 41, the electrical connector 20 is disposed on a surface of the circuit board 30, and the electromagnetic compatibility prevention component 10 is disposed between the circuit board 30 and the electrical connector 20. Here, the connection relationship between the electromagnetic compatibility prevention component 10 and the electrical connector 20 is the same as that described above, so it will not be repeated here.

Please refer to FIGS. 3 and 4 at the same time, one side of the circuit board 30 is clamped between the auxiliary fixing unit 14 of the electromagnetic compatibility prevention assembly 10 and the bottom plate 113. On the other hand, as described in the foregoing embodiment, the auxiliary fixing unit 14 has a convex portion 141, which faces the bottom plate 113 and is fastened to a concave portion (not shown in the figure) of the circuit board 30, thereby preventing electromagnetic compatibility. The control assembly 10 can be stably arranged on the electrical connector 20 and the electrical Between road boards 30.

The first electrical contact portion 131, the second electrical contact portion 132 and the third electrical contact portion 133 of the electromagnetic compatibility prevention component 10 are electrically connected to the conductive housing 41. In addition, the fourth electrical contact portion 134 and the fifth electrical contact portion (not shown in the figure) of the electromagnetic compatibility prevention component 10 are electrically connected to a conductive connection portion 31 (such as a solder pad) on the circuit board 30. The conductive housing 41 and the conductive connection portion 31 of the circuit board are respectively electrically connected to a ground of the electronic device 40.

As mentioned above, a first conductive path is established between the conductive housing 41 and the electrical connector 20, and a second conductive path is established between the circuit board 30 and the electrical connector 20, and the first conductive path and the first conductive path are Both conductive paths are electrically connected to the ground terminal of the electronic device 40. Accordingly, the electromagnetic interference or electrostatic discharge interference generated by the electrical connector 20 can be conducted to the ground terminal of the electronic device 40 through the first conductive path and the second conductive path, so as to achieve the effect of improving the overall electromagnetic compatibility. .

In addition, it is worth mentioning that the electromagnetic compatibility prevention component can be an independent additional component. The electromagnetic compatibility prevention component can be installed by the user in the required application. Since the electrical connector is generally fixed on the circuit board through a welding process, if a failure occurs after the electromagnetic compatibility test, the electromagnetic compatibility prevention component can be combined by the electrical connector and the front end of the circuit board , By increasing the conductive path to overcome electromagnetic interference and electrostatic discharge interference. Accordingly, it is also possible to reduce the rework work of removing the electrical connector.

The above description is only illustrative, and not restrictive. Any equivalent modifications or alterations that do not depart from the spirit and scope of the present invention should be included in the scope of the attached patent application.

10‧‧‧Electromagnetic compatibility prevention components

11‧‧‧Ontology

111‧‧‧First side wall

1111‧‧‧First bottom side

1112‧‧‧First top side

1113‧‧‧First front

112‧‧‧Second side wall

1121‧‧‧Second bottom side

1122‧‧‧Second top side

1123‧‧‧Second front side

113‧‧‧Bottom plate

1133‧‧‧The third front side

12‧‧‧Clamping unit

121‧‧‧First to the top

122‧‧‧Second to the top

13‧‧‧Electrical contact unit

131‧‧‧First electrical contact

132‧‧‧Second electrical contact

133‧‧‧The third electrical contact

134‧‧‧Fourth electrical contact

135‧‧‧Fifth electrical contact

14‧‧‧Auxiliary fixing unit

141‧‧‧Protrusion

D1‧‧‧First distance

D2‧‧‧Second distance

Claims (14)

An electromagnetic compatibility prevention component for an electrical connector includes a body with a first side wall, a second side wall, and a bottom plate. The first side wall and the second side wall are arranged opposite to each other, and the bottom plate is respectively connected to the A first bottom side of the first side wall and a second bottom side of the second side wall; a clamping unit having a first abutting top extending on the first side wall and a second bottom side extending on the second side wall The second abutting top, and at least a part of the first abutting top and the second abutting top are located between the first side wall and the second side wall in a projection direction; and an electrical contact unit protruding from the body , Used to contact an external conductor. The electromagnetic compatibility prevention component of the electrical connector according to claim 1, wherein the first abutting top is extended from a first top side of the first side wall relative to the first bottom side, and the second abutting The top is extended from a second top side of the second side wall relative to the second bottom side. The electromagnetic compatibility prevention component of the electrical connector according to claim 2, wherein the electrical contact unit has a first electrical contact portion, a second electrical contact portion and/or a third electrical contact portion, The first electrical contact portion is extended on a first front side of the first side wall, the second electrical contact portion is extended on a second front side of the second side wall, and the third electrical contact portion is It is extended to a third front side of the bottom plate. The electromagnetic compatibility prevention component of the electrical connector according to claim 3, further comprising: an auxiliary fixing unit, which is extended to the third electrical contact portion and is arranged opposite to the bottom plate. The electromagnetic compatibility prevention component of the electrical connector according to claim 4, wherein the auxiliary fixing unit has a convex portion facing the bottom plate. The electromagnetic compatibility prevention component of an electrical connector according to claim 2, wherein the electrical contact unit has a fourth electrical contact portion and/or a fifth electrical contact portion, and the fourth electrical contact portion is Extend on the first bottom side of the first side wall, the fifth electrical contact portion is extended on the second bottom side of the second side wall, and the fourth electrical contact portion and/or the fifth The electrical contact portion extends toward the other direction of the bottom plate. The electromagnetic compatibility prevention component of the electrical connector according to claim 1, wherein the first abutment portion and the second abutment portion are respectively "ㄑ"-shaped. An electronic device includes: a conductive housing; a circuit board arranged on the conductive housing; an electrical connector arranged on a surface of the circuit board and having a connection port; and an electromagnetic compatibility prevention component, Is arranged between the circuit board and the electrical connector, and establishes a first conductive path between the conductive housing and the electrical connector, and establishes a second conductive path between the circuit board and the electrical connector Path, the electromagnetic compatibility prevention component includes: a body with a first side wall, a second side wall and a bottom plate, the first side wall and the second side wall are arranged oppositely, and the bottom plate is connected to the first side wall respectively A first bottom side and a second bottom side of the second side wall; a clamping unit having a first abutting top extending on the first side wall and a second abutting extending on the second side wall The top, and at least part of the first abutting top and the second abutting top are located between the first side wall and the second side wall in a projection direction, and part of the electrical connector is sandwiched between the body and the clip Between the holding units; and an electrical contact unit protruding from the body for contacting the circuit board and the conductive shell respectively. The electronic device according to claim 8, wherein the first abutting top of the electromagnetic compatibility prevention component is extended from a first top side of the first side wall relative to the first bottom side, and the second abutting The top is extended from a second top side of the second side wall relative to the second bottom side. The electronic device according to claim 9, wherein the electrical contact unit of the electromagnetic compatibility prevention component has a first electrical contact portion, a second electrical contact portion, and/or in electrical contact with the conductive housing Or a third electrical contact portion, the first electrical contact portion is extended on a first front side of the first side wall, and the second electrical contact portion is extended on a second front side of the second side wall , The third electrical contact part is extended on the bottom One of the third front side of the board. According to the electronic device of claim 10, the electromagnetic compatibility prevention component further includes: an auxiliary fixing unit, which is extended on the third electrical contact portion and is arranged opposite to the base plate, one of the circuit boards The side tie is clamped between the auxiliary fixing unit and the bottom plate. The electronic device according to claim 11, wherein the auxiliary fixing unit has a convex portion facing the bottom plate and fixed to a concave portion of the circuit board. The electronic device according to claim 9, wherein the electrical contact unit of the electromagnetic compatibility prevention component has a fourth electrical contact portion and/or a first electrical contact portion in electrical contact with at least one conductive connection portion of the circuit board Five electrical contact portions, the fourth electrical contact portion is extended on the first bottom side of the first side wall, and the fifth electrical contact portion is extended on the second bottom side of the second side wall, And the fourth electrical contact portion and/or the fifth electrical contact portion extend toward the other direction of the bottom plate. The electronic device according to claim 8, wherein the first abutment portion and the second abutment portion are respectively "ㄑ" shapes.

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