TWI840026B - Assembly structure of electrical connector and circuit board and electrical connector - Google Patents

Abstract

An electrical connector and circuit board assembly structure and an electrical connector. The electrical connector and circuit board assembly structure includes an electrical connector, a circuit board and a base. The electrical connector includes a plurality of first terminals, the first terminals are arranged along a first direction, each first terminal includes an electrical connection portion extending along a second direction, the electrical connection portion has a contact distance along the second direction, and the second direction is perpendicular to the first direction. The circuit board includes a circuit board body and a plurality of second terminals, the second terminals are arranged at the edge of the circuit board body and arranged along the first direction. The electrical connector and the circuit board are arranged on the base. Within the contact distance in the second direction, the second terminal of the circuit board contacts the first terminal of the electrical connector, so that the circuit board and the electrical connector form an electrical connection at different heights relative to the base.

Description

Electrical connector and circuit board assembly structure and electrical connector

The present invention relates to an electrical connector and a circuit board assembly structure and an electrical connector, and in particular to an electrical connector and a circuit board assembly structure and an electrical connector that can be combined with circuit boards of different heights and prevent electromagnetic effects from being generated when transmitting high-frequency signals.

Electrical connectors are used to connect different electronic components or modules so that electronic signals can be transmitted between different electronic components or modules through electrical connectors. Some electrical connectors will be installed on the circuit board and form an electrical connection with the circuit board. However, in different pad modules, the position of the circuit board will be different, so the structure of the connection between the electrical connector and the circuit board needs to be designed differently for different electronic modules.

In view of this, the purpose of the present invention is to provide an electrical connector and circuit board assembly structure and an electrical connector, which can be applied to circuit boards set at different heights, and the assembly sequence of the electrical connector and the circuit board is not limited, thereby increasing the flexibility of the assembly process. In addition, the structure connecting the electrical connector and the circuit board forms an electrical loop, and when transmitting high-frequency signals, when the electric field alternates at a high frequency, the electric field can be guided back to the terminal to avoid the formation of an antenna effect and the emission of electromagnetic waves, causing electromagnetic interference.

An embodiment of the electrical connector and circuit board assembly structure of the present invention includes an electrical connector, a circuit board and a base. The electrical connector includes a plurality of first terminals, which are arranged along a first direction, and each first terminal includes an electrical connection portion extending along a second direction, and the electrical connection portion has a contact distance along the second direction, and the second direction is perpendicular to the first direction. The circuit board includes a circuit board body and a plurality of second terminals, and the second terminals are arranged at the edge of the circuit board body and arranged along the first direction. The electrical connector and the circuit board are arranged on the base. Within the contact distance in the second direction, the second terminal of the circuit board contacts the first terminal of the electrical connector, so that the circuit board and the electrical connector form an electrical connection at different heights relative to the base.

In another embodiment, the electrical connector is first disposed on the base, and then the circuit board is disposed on the base along the second direction and forms an electrical connection with the electrical connector, or the circuit board is first disposed on the base, and then the electrical connector is disposed on the base and forms an electrical connection with the circuit board.

An embodiment of the electrical connector of the present invention includes a first rubber core and a plurality of first terminals. The first terminals are arranged along a first direction, and each first terminal includes a docking portion, a retaining portion, and an electrical connection portion. The retaining portion is fixed to the first rubber core, the docking portion is docked with a pair of hand connectors, and the electrical connection portion is electrically connected to a circuit board; wherein the first terminal includes a first high-frequency signal terminal pair, a second high-frequency signal terminal pair, a first grounding terminal, a second grounding terminal, a normal signal terminal pair, and a power terminal, which are arranged in sequence along the first direction into a first high-frequency signal terminal pair, a first grounding terminal, a normal signal terminal pair, a second grounding terminal, a power terminal, and a second high-frequency signal terminal pair.

In another embodiment, the electrical connection portion of each first terminal extends along a second direction, and the electrical connection portion has a contact distance along the second direction, and the second direction is perpendicular to the first direction.

In another embodiment, the electrical connection portion of each first terminal includes an elastic arm and a contact arm, the elastic arm is connected to the holding portion, the contact arm is connected to the elastic arm and forms an electrical circuit, the contact arm is closer to the circuit board than the elastic arm and the contact arm contacts the second terminal of the circuit board.

In another embodiment, it further includes a second rubber core, which is combined with the first rubber core. The second rubber core includes a plurality of accommodating grooves for accommodating the elastic arms of the electrical connection part, and the contact arms protrude from the accommodating grooves.

In another embodiment, it further includes a first metal shell, covering the first rubber core and combined with the second rubber core, the first metal shell has a docking interface, and the docking portions of the first terminals are close to the docking interface.

In another embodiment, the docking parts of the first terminal are arranged in an upper row and a lower row, the docking parts of the upper row are the docking parts of the first ground terminal, the conventional signal terminal pair and the power terminal, and the docking parts of the lower row are the docking parts of the first high-frequency signal terminal pair, the second ground terminal and the second high-frequency signal terminal pair.

In another embodiment, the docking portion of the lower row is closer to the docking port than the docking portion of the upper row, the docking portion of the conventional signal terminal pair is between the docking portions of the first ground terminal and the power terminal, and the docking portion of the second ground terminal is between the docking portions of the first high-frequency signal terminal pair and the second high-frequency signal terminal pair.

In another embodiment, it further includes a second metal shell, which is combined with the first metal shell, and the second metal shell includes a pair of wing plate parts, each wing plate part has a bolt hole and a positioning hole.

The electrical connector and circuit board assembly structure of the present invention forms a contact distance in the second direction through the electrical connection portion of the first terminal, so that the electrical connector of the present invention can form an electrical connection with the circuit boards arranged at different heights, and the electrical connector and the circuit board can be arranged on the base in any order, providing considerable flexibility for the installation process. In addition, the first terminal of the electrical connector of the present invention includes a first high-frequency signal terminal pair, a second high-frequency signal terminal pair, a first ground terminal, a second ground terminal, a conventional signal terminal pair and a power terminal, which can be used for special electrical connection structures, and the electrical connection portion of each first terminal includes an elastic arm and a contact arm, the contact arm is connected to the elastic arm and forms an electrical loop. When transmitting high-frequency signals, when the electric field alternates at a high frequency, it can guide the electric field back to the terminal to avoid the formation of an antenna effect and the emission of electromagnetic waves, causing electromagnetic interference.

1: Electrical connector and circuit board assembly structure

10:Electrical connector

11: First terminal

11a: First high-frequency signal terminal pair

11b: Second high-frequency signal terminal pair

11c: First ground terminal

11d: Second ground terminal

11e: Conventional signal terminal pair

11f: Power terminal

12: First rubber core

13: Second rubber core

14: First metal shell

15: Second metal shell

20: Circuit board

21: Circuit board body

22: Second terminal

30: Base

31: Base plate

32: Side wall

33: Positioning pin

111: Electrical connection part

112: Docking section

113: Holding part

121: Base

122: tongue plate

131: Storage tank

141: Interface

151: Wing plate

1111: Elastic arm

1112: Contact arm

1511: Bolt hole

1512: Positioning hole

D: Contact distance

L1: First direction

L2: Second direction

M: Bolt

Figure 1 is a three-dimensional diagram of an embodiment of the electrical connector and circuit board assembly structure of the present invention.

Figures 2 and 3 are side views of the assembly structure of the electrical connector of the present invention and circuit boards of different heights.

Figure 4 is a three-dimensional diagram of an embodiment of the electrical connector of the present invention.

Figure 5 is a partial exploded perspective view of the electrical connector of Figure 4.

Figure 6 is a three-dimensional exploded view of the electrical connector of Figure 4.

Figure 7 is a three-dimensional diagram of the first terminal.

Please refer to Figures 1, 2 and 3, which show an embodiment of the electrical connector and circuit board assembly structure of the present invention. The electrical connector and circuit board assembly structure 1 of the present embodiment includes an electrical connector 10, a circuit board 20 and a base 30. The electrical connector 10 and the circuit board 20 are arranged on the base 30. The base 30 includes a bottom plate 31 and a side wall 32, the side wall 32 is uprightly arranged on the edge of the bottom plate 31, and the side wall 32 includes a plurality of openings, and the docking port of the power connector 10 is exposed from the opening so as to be connected with the counterpart connector. The circuit board 20 is arranged on the bottom plate 31 and forms an electrical connection with the electrical connector 10. The bottom plate 31 has a support member, and the support member has different heights so that the circuit board 20 supported by the support member can be set at different heights. For example, in FIG1 , the circuit board 20 set at the far left has the highest position, the circuit board 20 set in the middle has the lowest position, and the circuit board 20 set at the far right has a middle position.

The electrical connector 10 includes a plurality of first terminals 11, which are arranged along a first direction L1. Each first terminal 11 includes an electrical connection portion 111 extending along a second direction L2, and the electrical connection portion 111 has a contact distance D along the second direction L2, and the second direction L2 is perpendicular to the first direction L1.

The circuit board 20 includes a circuit board body 21 and a plurality of second terminals 22. The second terminals 22 are arranged at the edge of the circuit board body 21 and arranged along the first direction L1. Within the contact distance D in the second direction L2, the second terminals 22 of the circuit board 20 contact the first terminals 11 of the electrical connector 10, so that the circuit board 20 and the electrical connector 10 form an electrical connection at different heights relative to the base 30.

As shown in Fig. 1, Fig. 2 and Fig. 3, the contact distance D of the electrical connection portion 111 in the second direction L2 is greater than the thickness of the circuit board 20, so that the circuit boards 20 arranged at different heights can form an electrical connection as long as they are within the contact distance D. The second terminal 22 of the circuit board 20 forms interference with the electrical connection portion 111 of the first terminal 11 of the electrical connector 10, whereby the second terminal 22 abuts against the electrical connection portion 111 of the first terminal 11 to maintain electrical connection. The circuit board 20 on the far left of Fig. 1 and the circuit board 20 in Fig. 2 are higher, while the circuit board 20 in the middle of Fig. 1 and the circuit board 20 in Fig. 3 are lower, and both can maintain electrical connection with the electrical connector 10.

In addition, when the electrical connector 10 and the circuit board 20 are assembled on the base 30, the electrical connector 10 may be first arranged on the base 30, and then the circuit board 20 may be arranged on the base 30 along the second direction L2 and electrically connected to the electrical connector 10. Alternatively, the circuit board 20 may be first arranged on the base 30, and then the electrical connector 10 may be arranged on the base 30 along the second direction L2 and electrically connected to the circuit board 20.

Please refer to Figures 4, 5, 6 and 7, which are an embodiment of the electrical connector of the present invention. The electrical connector 10 of this embodiment includes a plurality of first terminals 11, a first rubber core 12, a second rubber core 13, a first metal shell 14 and a second metal shell 15.

The first terminals 11 are arranged along a first direction L1, and each first terminal 11 includes an electrical connection portion 111, a docking portion 112, and a retaining portion 113. The retaining portion 113 is fixed to the first rubber core 12, the docking portion 112 is docked with a pair of hand connectors, and the electrical connection portion 111 is electrically connected to a circuit board. The first terminal 11 includes a first high-frequency signal terminal pair 11a, a second high-frequency signal terminal pair 11b, a first grounding terminal 11c, a second grounding terminal 11d, a normal signal terminal pair 11e, and a power terminal 11f. As shown in FIG. 7, the first terminals 11 are arranged from right to left along the first direction L1 into a first high-frequency signal terminal pair 11a, a first grounding terminal 11c, a normal signal terminal pair 11e, a second grounding terminal 11d, a power terminal 11f, and a second high-frequency signal terminal pair 11b.

The first rubber core 12 includes a base 121 and a tongue portion 122, the tongue portion 122 is connected to the base 121 and is perpendicular to the base 121. The retaining portion 113 of the first terminal 11 is fixed to the base 121 of the first rubber core 12, the mating portion 112 of the first terminal 11 is fixed to the tongue portion 122 of the first rubber core 12, and the electrical connection portion 111 of the first terminal 11 protrudes from the base 121 of the first rubber core 12.

The second rubber core 13 is combined with the base 121 of the first rubber core 12. The second rubber core 13 includes a plurality of receiving grooves 131. The electrical connection parts 111 of the plurality of first terminals 11 are correspondingly arranged in the plurality of receiving grooves 131 of the second rubber core 13. The electrical connection parts 111 of the first terminals 11 are positioned in the receiving grooves 131 by abutting the groove walls of the receiving grooves 131 on both sides of the electrical connection parts 111 of the first terminals 11.

The electrical connection portion 111 of the first terminal 11 of the present embodiment includes an elastic arm 1111 and a contact arm 1112. The elastic arm 1111 is connected to the holding portion 113, and the contact arm 1112 is connected to the elastic arm 1111 to form an electrical circuit. The elastic arm 1111 of the present embodiment is correspondingly disposed in the plurality of receiving grooves 131 of the second rubber core 13 and the two sides thereof abut against the groove walls of the receiving grooves 131. The contact arm 1112 is closer to the circuit board 20 than the elastic arm 1111 and the contact arm 1112 contacts the second terminal 22 of the circuit board 20. The elastic arm 1111 and the contact arm 1112 both extend along the second direction L2 and each contact arm 1112 has a contact distance D. The second terminal 22 of the circuit board 20 interferes with the contact arm 1112 and abuts against the contact arm 1112. Since the two ends of the elastic arm 1111 and the contact arm 1112 are connected to form an electrical loop, when a high-frequency signal is transmitted, when the electric field alternates at a high frequency, the electric field can be guided back to the terminal to avoid the formation of an antenna effect and the emission of electromagnetic waves, causing electromagnetic interference.

The first metal shell 14 covers the first rubber core 12 and is combined with the second rubber core 13. The first metal shell 14 has a docking port 141 for inserting the counterpart connector. The docking portion 112 of the first terminal 11 is arranged close to the docking port 141 for elastically abutting against the terminal of the counterpart connector.

The second metal housing 15 is combined with the first metal housing 14. The second metal housing 15 is U-shaped and includes a pair of wing portions 151. Each wing portion 151 extends laterally from the side of the first metal housing 14, and each wing portion 151 has a bolt hole 1511 and a positioning hole 1512. Please refer to Figure 1. The positioning hole 1512 of the wing portion 151 is combined with the positioning pin 33 of the base 30. The bolt hole 1511 corresponds to the screw hole of the base 30. The bolt M passes through the bolt hole 1511 and is locked in the screw hole of the base 30, so that the second metal housing 15 is fixed to the base 30, and the electrical connector 10 is also positioned on the base 30.

The docking portions 112 of the plurality of first terminals 11 are arranged in an upper row and a lower row, and the docking portions 112 of the upper row belong to the first ground terminal 11c, the normal signal terminal pair 11e and the power terminal 11f. The docking portions 112 of the lower row belong to the first high-frequency signal terminal pair 11a, the second ground terminal 11d and the second high-frequency signal terminal pair 11b. The docking portions 112 of the upper row are formed in a spring shape, and the docking portions 112 of the lower row are formed in a plate shape. The docking portions 112 of the lower row are closer to the docking port 141 than the docking portions 112 of the upper row. The docking portion 112 of the normal signal terminal pair 11e is located between the docking portions 112 of the first ground terminal 11c and the power terminal 11f. The connecting portion 112 of the second ground terminal 11d is located between the connecting portion 112 of the first high-frequency signal terminal pair 11a and the second high-frequency signal terminal pair 11b.

The electrical connector and circuit board assembly structure of the present invention forms a contact distance in the second direction through the electrical connection portion of the first terminal, so that the electrical connector of the present invention can form an electrical connection with the circuit boards arranged at different heights, and the electrical connector and the circuit board can be arranged on the base in any order, providing considerable flexibility for the installation process. In addition, the first terminal of the electrical connector of the present invention includes a first high-frequency signal terminal pair, a second high-frequency signal terminal pair, a first ground terminal, a second ground terminal, a conventional signal terminal pair and a power terminal, which can be used for special electrical connection structures, and the electrical connection portion of each first terminal includes an elastic arm and a contact arm, the contact arm is connected to the elastic arm and forms an electrical loop. When transmitting high-frequency signals, when the electric field alternates at a high frequency, it can guide the electric field back to the terminal to avoid the formation of an antenna effect and the emission of electromagnetic waves, causing electromagnetic interference.

However, the above is only the preferred embodiment of the present invention, and it cannot be used to limit the scope of the implementation of the present invention. That is, all simple equivalent changes and modifications made according to the scope of the patent application and the new description of the present invention are still within the scope of the present invention. In addition, any embodiment or patent application of the present invention does not need to achieve all the purposes, advantages or features disclosed by the present invention. In addition, the abstract and title are only used to assist in searching for patent documents, and are not used to limit the scope of the rights of the present invention. In addition, the terms "first" and "second" mentioned in this specification or patent application are only used to name the element or distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of elements.

1: Electrical connector and circuit board assembly structure

10:Electrical connector

11: First terminal

20: Circuit board

21: Circuit board body

22: Second terminal

30: Base

31: Base plate

32: Side wall

33: Positioning pin

111: Electrical connection part

1511: Bolt hole

1512: Positioning hole

D: Contact distance

L1: First direction

L2: Second direction

M: Bolt

Claims (7)

An electrical connector and circuit board assembly structure, comprising: an electrical connector, comprising a first rubber core; a plurality of first terminals, the first terminals are arranged along a first direction, each first terminal comprises a docking portion, a retaining portion and an electrical connection portion, the retaining portion is fixed to the first rubber core, the docking portion is docked with a pair of hand connectors, and the electrical connection portion is electrically connected to a circuit board; wherein the first terminals comprise a first high-frequency signal terminal pair, a second high-frequency signal terminal pair, a first grounding terminal, a second grounding terminal, a regular signal terminal pair and a power terminal, and are arranged in sequence along the first direction into the first high-frequency signal terminal pair, the first grounding terminal, the regular signal terminal pair, the second grounding terminal, the power terminal and the second high-frequency signal terminal pair, wherein the electrical connection portion of each first terminal is along a The electrical connection portion extends in a second direction, the electrical connection portion has a contact distance along the second direction, the second direction is perpendicular to the first direction, and the electrical connection portion of each first terminal includes an elastic arm and a contact arm, the elastic arm is connected to the holding portion, the contact arm is connected to the elastic arm and forms an electrical circuit, the contact arm is closer to the circuit board than the elastic arm and the contact arm contacts the second terminal of the circuit board; a circuit board, comprising A circuit board body and a plurality of second terminals, the second terminals are arranged at the edge of the circuit board body and arranged along the first direction; and a base, the electrical connector and the circuit board are arranged on the base; wherein within the contact distance in the second direction, the second terminals of the circuit board contact the first terminals of the electrical connector, so that the circuit board and the electrical connector form an electrical connection at different heights relative to the base. The electrical connection and circuit board assembly structure as described in claim 1, wherein the electrical connector is first arranged on the base, and then the circuit board is arranged on the base along the second direction and forms an electrical connection with the electrical connector, or the circuit board is first arranged on the base, and then the electrical connector is arranged on the base along the second direction and forms an electrical connection with the circuit board. An electrical connector, comprising: a first rubber core; a plurality of first terminals, the first terminals are arranged along a first direction, each first terminal comprises a docking portion, a holding portion and an electrical connection portion, the holding portion is fixed to the first rubber core, the docking portion is docked with a pair of hand connectors, and the electrical connection portion is electrically connected to a circuit board; wherein the first terminals comprise a first high-frequency signal terminal pair, a second high-frequency signal terminal pair, a first grounding terminal, a second grounding terminal, a conventional signal terminal pair and a power terminal, which are arranged in sequence along the first direction to form the first high-frequency signal terminal pair, the first high-frequency signal terminal pair and the second high-frequency signal terminal pair. The first ground terminal, the conventional signal terminal pair, the second ground terminal, the power terminal and the second high-frequency signal terminal pair, wherein the electrical connection portion of each of the first terminals extends along a second direction, and the electrical connection portion has a contact distance along the second direction, and the second direction is perpendicular to the first direction, and the electrical connection portion of each of the first terminals includes an elastic arm and a contact arm, the elastic arm is connected to the holding portion, the contact arm is connected to the elastic arm and forms an electrical circuit, the contact arm is closer to the circuit board than the elastic arm, and the contact arm contacts the second terminal of the circuit board. The electrical connector as described in claim 3 further includes a second rubber core coupled to the first rubber core, the second rubber core includes a plurality of receiving grooves for receiving the elastic arm of the electrical connection portion, and the contact arm protrudes from the receiving grooves. The electrical connector as described in claim 4 further includes a first metal shell covering the first rubber core and coupled to the second rubber core, the first metal shell having a pair of interfaces, and the mating portions of the first terminals are close to the mating interfaces. The electrical connector as described in claim 5, wherein the mating portions of the first terminals are arranged in an upper row and a lower row, the mating portions of the upper row are the mating portions of the first ground terminal, the conventional signal terminal pair and the power terminal, and the mating portions of the lower row are the mating portions of the first high-frequency signal terminal pair, the second ground terminal and the second high-frequency signal terminal pair, wherein the mating portions of the lower row are closer to the docking interface than the mating portions of the upper row, the mating portions of the conventional signal terminal pair are located between the mating portions of the first ground terminal and the power terminal, and the mating portion of the second ground terminal is located between the mating portions of the first high-frequency signal terminal pair and the second high-frequency signal terminal pair. The electrical connector as described in claim 5 further includes a second metal shell, which is combined with the first metal shell, and the second metal shell includes a pair of wing plate parts, each of which has a bolt hole and a positioning hole.

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