WO2021168873A1

WO2021168873A1 - Multi-stage connector assembly and female connector

Info

Publication number: WO2021168873A1
Application number: PCT/CN2020/077584
Authority: WO
Inventors: 何家勇; 陈勇利
Original assignee: 瑞声声学科技(深圳)有限公司; 瑞声科技(新加坡)有限公司
Priority date: 2020-02-27
Filing date: 2020-03-03
Publication date: 2021-09-02
Also published as: CN113314897A

Abstract

The present invention provides a multi-stage connector assembly and a female connector. The multi-stage connector assembly comprises a first substrate, a female connector, a male connector, and a second substrate; the female connector comprises a first insulating body, elastic terminals and a first metal housing, the male connector comprises a second insulating body and fixed terminals, and the female connector further comprises first metal shielding members and second metal shielding members which are fixed on the first insulating body and are perpendicular to each other; the first metal shielding member are arranged between columns of the elastic terminals, and the second metal shielding member are arranged between two adjacent elastic terminals in the same column; the fixed terminals comprise signal transmission terminals and ground terminals, the elastic terminals are in contact with the signal transmission terminals in one-to-one correspondence, and the second metal shielding members are in contact with the ground terminals in one-to-one correspondence; and shielding fillet welds are further provided at the locations of the edges of the first metal housing corresponding to the two ends of each second metal shielding member. The present invention can solve the problems of mutual interference between internal signals of connectors and leakage of signals.

Description

Multi-level connector assembly and female connector

Technical field

The invention belongs to the technical field of signal connection, and particularly relates to a multi-level connector assembly and a female connector.

Background technique

With the rapid development of electronic technology nowadays, electronic devices are widely used, and a variety of circuit substrates with different functions are arranged inside the electronic devices to meet the various functional requirements of users for electronic devices. Currently, multi-level connectors are usually used to electrically connect two circuit substrates.

In the related art, a single connector in a multi-level connector is usually composed of internal terminals of the substrate, insulating parts, and a metal shell. However, due to the metal shell, this connector cannot achieve omnidirectional shielding of the internal terminals (between the metal shell and the substrate). There is a large gap), resulting in the leakage of electromagnetic waves from the terminal signals that transmit high-speed signals, and there is no effective shielding between the two columns of internal signal transmission terminals and the signal terminals in the same column, so this connector is used During high-speed signal transmission, internal signals interfere with each other, and the leakage of internal signals will also cause interference to external components.

technical problem

The purpose of the present invention is to provide a multi-level connector assembly and a female connector, which aims to solve the problems of mutual interference between internal signals of the connectors and signal leakage.

Technical solutions

The technical solution of the present invention is as follows: a multi-level connector assembly, which includes a first substrate, a female connector fixed on the first substrate, a male connector interfitted with the female connector, and The male connector is away from the second substrate on the side of the female connector, and the female connector includes a first insulating body, elastic terminals fixed on the first insulating body and arranged in several rows, and fixed on the first insulating body. A grounded first metal shell on the surface of the first insulating body and surrounding the elastic terminal, the male connector includes a second insulating body and fixed terminals fixed on the second insulating body and arranged in several rows, the The female connector further includes a first metal shield fixed on the first insulating body and extending along the row direction of the plurality of rows of the elastic terminals, and a first metal shield fixed on the first insulating body and extending along the first metal A plurality of second metal shields extending in a vertical direction of the shield, the first metal shield and the second metal shield are both grounded, and the first metal shield is arranged between the rows of the elastic terminals and is The second metal shield is arranged between two adjacent elastic terminals in the same row, and the fixed terminal includes a signal transmission terminal and a ground terminal arranged between two adjacent signal transmission terminals. The terminals are in one-to-one correspondence with the signal transmission terminals and the second metal shield is in one-to-one correspondence with the ground terminals. The edges of the first metal shell correspond to the positions of both ends of the second metal shield. A shield solder foot extending toward the first substrate and electrically connected to the ground potential on the first substrate.

Further, the first metal shell, the first metal shield, and the second metal shield are all electrically connected to the ground potential on the first substrate.

Further, a ring-shaped groove is provided on the surface of the first insulating body facing the male connector, and the groove divides the first insulating body into a peripheral part and a central part, and the second insulating body is The surface of the insulating body facing the female connector is provided with an accommodating groove corresponding to the central part. When the female connector and the male connector are fitted with each other, the central part is received in the In the accommodating groove, the side wall of the accommodating groove is inserted into the groove.

Further, the first metal shell is fixed on the peripheral part, and the first metal shield and the second metal shield are fixed on the central part.

Furthermore, the elastic terminals are arranged in two rows, each row is arranged with three elastic terminals, the fixed terminals are arranged in two rows, and each row is arranged with three signal transmission terminals and two ground terminals.

Further, the elastic terminal is disposed in the groove, the elastic terminal has a concave shape that is recessed in a direction away from the fixed terminal, and the second metal shield is provided with a direction away from the fixed terminal at the groove. The fixed terminal is recessed in a direction, and the fixed terminal has a convex shape corresponding to the concave shape of the elastic terminal and the concave portion.

Further, the male connector further includes a second metal shell, the second metal shell is fixed on the side wall of the receiving groove, and the second metal shell is located on both sides of the fixed terminal.

Further, the first metal shield has an integrated or split structure, and the second metal shield has an integrated or split structure.

Further, there is provided a female connector for electrically connecting with a male connector having signal transmission terminals and ground terminals arranged in rows, comprising a first insulating body, fixed on the first insulating body and arranged in a plurality of Row of elastic terminals and a grounded first metal shell fixed on the surface of the first insulating body and surrounding the elastic terminals, the female connector is fixed on the first substrate, characterized in that the female connector further comprises A first metal shield fixed on the first insulating body and extending in the column direction of the plurality of rows of the elastic terminals, and a first metal shield fixed on the first insulating body and along a direction perpendicular to the first metal shield Extending a plurality of second metal shields, the first metal shield and the second metal shield are both grounded, the first metal shield is arranged between the rows of the elastic terminals and the second metal shield Is arranged between two adjacent elastic terminals in the same row, the elastic terminals are in one-to-one correspondence with the signal transmission terminals, and the second metal shield is in one-to-one correspondence with the ground terminals, the The edges of the first metal shell corresponding to the two ends of the second metal shield are also provided with shielding solder feet extending toward the first substrate and electrically connected to the ground potential on the first substrate.

Beneficial effect

The beneficial effect of the present invention is that the present invention separates the inside of the connector through the first metal shell in the connector assembly, the first metal shield and the second metal shield that are perpendicular to each other, and the ground terminal contacting the second metal shield. There are multiple shielding areas, the signal transmission terminal is located inside the shielding area, and the shielding solder feet of the first metal shell surround the signal transmission terminal of the connector, thus forming an all-round high-efficiency internal and external shielding and low leakage, which solves the connection well. The mutual interference between the internal signals of the device, and the problem of signal leakage.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of a multi-level connector assembly provided by an embodiment of the present invention;

Figure 2 is a schematic diagram of the structure of the female connector in Figure 1;

Fig. 3 is a schematic structural view of the female connector in Fig. 1 except for the first insulating body;

4 is a schematic diagram of the structure of FIG. 1 except for the first substrate, the second substrate, the first insulating body, and the second insulating body;

Fig. 5 is a schematic diagram of the structure of the male connector in Fig. 1.

Embodiments of the present invention

The present invention will be further described below in conjunction with the drawings and embodiments.

Example one:

Please refer to FIGS. 1, 2 and 5, which are a multi-level connector assembly provided by an embodiment of the present invention. The multi-level connector assembly includes a first substrate 1, a female connector 2 fixed on the first substrate 1 , The male connector 3 interfitted with the female connector 2 and the second substrate 4 fixed on the side of the male connector 3 away from the female connector 2. The female connector 2 includes a first insulating body 21, which is fixed to the first insulating body. The elastic terminals 22 arranged in several rows on the body 21 and the grounded first metal shell 23 fixed on the surface of the first insulating body 21 and surrounding the elastic terminals 22. The male connector 3 includes a second insulating body 31 and a second insulating body 31 fixed to the second insulating body. The fixed terminals 32 on the main body 31 are arranged in several rows.

Please further refer to FIG. 4, in this embodiment, the female connector 2 further includes a first metal shield 24 fixed on the first insulating body 21 and extending along the row direction of the plurality of rows of elastic terminals 22, and a first metal shield 24 fixed on the first insulating body 21. A number of second metal shields 25 on the insulating body 21 and extending in a direction perpendicular to the first metal shield 24, the first metal shield 24 and the second metal shield 25 are both grounded, and the first metal shield 24 is arranged at The elastic terminals 22 are arranged between the rows and the second metal shield 25 is arranged between two adjacent elastic terminals 22 in the same row. The fixed terminal 32 includes a signal transmission terminal 321 and a ground arranged between two adjacent signal transmission terminals 321 The terminal 322, the elastic terminal 22 and the signal transmission terminal 321 are in one-to-one correspondence and the second metal shield 25 is in one-to-one correspondence with the ground terminal 322. The edge of the first metal shell 23 corresponds to the two ends of the second metal shield 25. A shield solder foot 26 extending toward the first substrate 1 and electrically connected to the ground potential on the first substrate 1. The first metal shell 23 in the multi-level connector assembly, the first metal shield 24 and the second metal shield 25 that are perpendicular to each other, and the ground terminal 322 contacting the second metal shield 25 separate the inside of the connector into Multiple shielding areas, the signal transmission terminal 321 is located inside the shielding area, and the shielding solder pins 26 surround the signal transmission terminal 321 of the connector, thus forming an all-round high-efficiency internal and external shielding and low leakage, which is a good solution to the interior of the connector The mutual interference between signals and the problem of signal leakage.

The elastic terminal 22 and the fixed terminal 32 are conductors connected to the signal potential or the ground potential, and the elastic terminal 22 and the fixed terminal 32 are formed by bending a conductive rod-shaped member. Specifically, as shown in FIGS. 3 and 5, the elastic terminals 22 are arranged in two rows, each row is provided with three elastic terminals 22, the fixed terminals 32 are arranged in two rows, and each row is provided with three signal transmission terminals 321 and two grounding terminals. Terminal 322. In addition, the first metal shell 23, the first metal shield 24 and the second metal shield 25 are all electrically connected to the ground potential on the first substrate 1.

Preferably, as shown in FIGS. 2 and 5, the first insulating body 21 is provided with an annular groove 27 on the surface facing the male connector 3. The groove 27 divides the first insulating body 21 into a peripheral portion 212 and The central part 211, the second insulating body 31 facing the female connector 2 is provided with a receiving groove 311 corresponding to the central part 211. When the female connector 2 and the male connector 3 are engaged with each other, the central part 211 receives In the receiving groove 311, the side wall of the receiving groove 311 is inserted into the groove 27.

Specifically, the first metal shell 23 is fixed on the peripheral portion 212, and the first metal shield 24 and the second metal shield 25 are fixed on the central portion 211. The elastic terminal 22 is arranged in the groove 27. The male connector 3 further includes a second metal shell 33. The second metal shell 33 is fixed on the side wall of the receiving groove 311 and the second metal shell 33 is located on both sides of the fixed terminal 32. With the arrangement of the groove 27 and the receiving groove 311, the first metal shell 23 of the female connector 2 and the second metal shell 33 of the male connector 3 are in a state where the female connector 2 and the male connector 3 are fitted with each other. In addition to surrounding the plurality of elastic terminals 22 of the female connector 2, it also surrounds the plurality of fixed terminals 32 of the male connector 3, so that the plurality of elastic terminals 22 and the fixed terminals 32 are in the first metal shell 23 and the second metal shell 33. Under the shielding effect, it will not be interfered by electromagnetic waves from outside the connector.

In addition, as shown in FIGS. 3 and 4, the elastic terminal 22 has a concave shape that is recessed away from the fixed terminal 32, and the second metal shield 25 is provided with a recessed portion 251 that is recessed away from the fixed terminal 32 at the groove. The fixed terminal 32 has a convex shape corresponding to the concave shape and the concave portion 251 of the elastic terminal 22. The convex shape of the fixed terminal 32 is inserted into the concave shape of the elastic terminal 22 and is in contact with each other. Since the elastic terminal 22 is made of an elastically deformable material, when the fixed terminal 32 is inserted into the elastic terminal 22, the concave shape of the elastic terminal 22 expands outward. Since the concave shape of the elastic terminal 22 wants to return to its original original shape, the elastic terminal There is a force between 22 and the fixed terminal 32 to clamp the convex shape in the concave shape. Through the action of this force, the elastic terminal 22 of the female connector 2 and the fixed terminal 33 of the male connector 3 are in close contact.

The first metal shielding member 24 and the second metal shielding member 25 of the present embodiment are of an integrated structure, and the first metal shielding member 24 passes through the second metal shielding member 25 and is clamped to the recessed portion on the second metal shielding member 25 . In other embodiments, the first metal shield 24 and the second metal shield 25 may also have separate structures.

Embodiment two:

Please refer to FIGS. 2 to 4, which are a female connector 2 provided by an embodiment of the present invention, which is used to electrically connect with a male connector 3 having signal transmission terminals 321 and ground terminals 322 arranged in rows, including a first insulation The body 21, the elastic terminals 22 fixed on the first insulating body 21 and arranged in several rows, and the grounded first metal shell 23 fixed on the surface of the first insulating body 21 and surrounding the elastic terminals 22, the female connector 2 is fixed on the first On the substrate 1, the female connector 2 further includes a first metal shield 24 fixed on the first insulating body 21 and extending along the row direction of the rows of elastic terminals 22, and a first metal shield 24 fixed on the first insulating body 21 and extending along the first and second sides. A plurality of second metal shields 25 extending in the vertical direction of a metal shield 24, the first metal shield 24 and the second metal shield 25 are both grounded, the first metal shield 24 is arranged between the rows of the elastic terminals 22 and the first metal shield 24 Two metal shields 25 are arranged between two adjacent elastic terminals 22 in the same row. The elastic terminals 22 are in one-to-one correspondence with the signal transmission terminals 321, and the second metal shield 25 is in one-to-one correspondence with the ground terminals 322. The first metal The edges of the housing 23 corresponding to the two ends of the second metal shield 25 are also provided with shielding solder feet 26 extending toward the first substrate 1 and electrically connected to the ground potential on the first substrate 1.

Compared with the related art, the present invention adopts the first metal shell 23 in the multi-level connector assembly, the first metal shield 24 and the second metal shield 25 perpendicular to each other, and the ground terminal in contact with the second metal shield 25. 322. Separate the inside of the connector into multiple shielding areas. The signal transmission terminal 321 is located inside the shielding area. At the same time, the shielding solder pins 26 surround the signal transmission terminal 321 of the connector, thereby forming an all-round high-efficiency internal and external shielding and low leakage. A good solution to the mutual interference between the internal signals of the connector and the problem of signal leakage.

The above are only the embodiments of the present invention. It should be pointed out here that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present invention, but these all belong to the present invention. The scope of protection.

Claims

A multi-level connector assembly includes a first substrate, a female connector fixed on the first substrate, a male connector that is mutually fitted with the female connector, and a male connector fixed on the male connector away from the A second substrate on one side of the female connector, the female connector comprising a first insulating body, elastic terminals fixed on the first insulating body and arranged in several rows, and fixed on the surface of the first insulating body and surrounding it The grounded first metal shell of the elastic terminal, the male connector includes a second insulating body and fixed terminals fixed on the second insulating body and arranged in several rows, characterized in that the female connector is also It includes a first metal shield fixed on the first insulating body and extending along the row direction of the plurality of rows of the elastic terminals, and a first metal shield fixed on the first insulating body and perpendicular to the first metal shield. The first metal shield and the second metal shield are both grounded, the first metal shield is arranged between the rows of the elastic terminals and the second metal shield The shielding member is arranged between two adjacent elastic terminals in the same row. The fixed terminal includes a signal transmission terminal and a ground terminal arranged between the two adjacent signal transmission terminals. The signal transmission terminals are in one-to-one corresponding contact and the second metal shields and the ground terminals are in one-to-one corresponding contact. The edges of the first metal shell correspond to the positions of the two ends of the second metal shields. A shielding solder foot extending from the substrate and electrically connected to the ground potential on the first substrate.
The multi-level connector assembly of claim 1, wherein the first metal shell, the first metal shield, and the second metal shield are all connected to a ground potential on the first substrate Electric connection.
The multi-level connector assembly according to claim 1, wherein a ring-shaped groove is provided on the surface of the first insulating body facing the male connector, and the groove connects the first The insulating body is divided into a peripheral part and a central part. The surface of the second insulating body facing the female connector is provided with a receiving groove corresponding to the central part. In the fitted state, the central part is received in the receiving groove, and the side wall of the receiving groove is inserted into the groove.
The multi-level connector assembly according to claim 3, wherein the first metal shell is fixed on the peripheral portion, and the first metal shield and the second metal shield are fixed on the On the center.
The multi-level connector assembly according to claim 3, wherein the elastic terminals are arranged in two rows, each row is arranged with three elastic terminals, and the fixed terminals are arranged in two rows, and each row is arranged with three elastic terminals. The signal transmission terminal and the two ground terminals.
The multi-level connector assembly according to claim 5, wherein the elastic terminal is disposed in the groove, the elastic terminal has a concave shape that is recessed in a direction away from the fixed terminal, and the second The metal shield is provided with a concave portion recessed in a direction away from the fixed terminal at the groove, and the fixed terminal has a convex shape corresponding to the concave shape of the elastic terminal and the concave portion.
The multi-level connector assembly according to any one of claims 1 to 6, wherein the male connector further comprises a second metal shell, and the second metal shell is fixed on the side wall of the receiving groove And the second metal shell is located on both sides of the fixed terminal.
The multi-level connector assembly according to any one of claims 1 to 6, wherein the first metal shield has an integrated or split structure, and the second metal shield has an integrated or split structure.
A female connector for electrically connecting with a male connector having signal transmission terminals and ground terminals arranged in rows, comprising a first insulating body, and elastic terminals fixed on the first insulating body and arranged in several rows And a grounded first metal shell fixed on the surface of the first insulating body and surrounding the elastic terminal, and the female connector is fixed on the first substrate, wherein the female connector further includes First metal shields on the first insulating body and extending along the row direction of the plurality of rows of the elastic terminals, and a plurality of first metal shields fixed on the first insulating body and extending in a direction perpendicular to the first metal shields Two metal shields, the first metal shield and the second metal shield are both grounded, the first metal shield is arranged between the rows of the elastic terminals and the second metal shield is arranged in the same row Between two adjacent elastic terminals, the elastic terminals are in one-to-one correspondence with the signal transmission terminals, and the second metal shield is in one-to-one correspondence with the ground terminals, the first metal shell The positions of the edges corresponding to the two ends of the second metal shield are also provided with shielding solder feet extending toward the first substrate and electrically connected to the ground potential on the first substrate.