KR20240014740A - Board to board type connector - Google Patents

Abstract

The present invention relates to a board-to-board type connector with reinforced internal and external shielding functions to prevent interference when transmitting a signal. the board-to-board type connector comprises a first connector and a second connector which can be coupled and separated. The first connector includes a first housing extended in one direction, a first terminal for signal transmission arranged in two rows along the first housing, and a first shield shielding a gap between the first terminals arranged in two rows. The first shield is provided at both ends of the first housing, respectively, and includes an edge body surrounding an end of the first housing and a baffle extending from the edge body. The second connector may include a second housing extending in one direction, a second terminal for signal transmission disposed in two rows along the second housing, and the second shield surrounding a circumference of the second housing on which the second terminal is disposed. The second shield is provided at both ends of the second housing, respectively, and includes a guard fence surrounding an end of the second housing and a contact formed on the guard fence.

Description

Board to board type connector{BOARD TO BOARD TYPE CONNECTOR}

The present invention relates to a board-to-board type connector, and more specifically, to a board-to-board type connector with an enhanced shielding function to prevent interference during signal transmission.

In general, an electronic device supporting a wireless communication function may include a printed circuit board on which a communication circuit is disposed. The communication circuit included in the printed circuit board transmits or receives signals through the antenna module and processes them.

Printed circuit boards of electronic devices are equipped with board-to-board connectors (B to B) type connectors, and the board-to-board type connectors can transmit low-frequency signals in addition to circuit signals.

Board-to-board type connectors connect rigid printed circuit boards to each other through a flexible printed circuit board (FPCB), or connect a rigid printed circuit board to electronic components.

However, since the conventional board-to-board type connector is not equipped with a shielding structure to prevent interference between signals, signal interference may occur at the connection portion of the connector when transmitting RF signals in the high frequency band. In particular, when transmitting RF signals in high frequency bands such as 5th generation mobile communication (5G), signal interference may further increase.

Therefore, for board-to-board type connectors capable of transmitting RF signals, it is very important to shield the connection portion of the connector to prevent interference with each other.

Registered Patent Publication No. 10-2240783 (April 14, 2021) discloses an electrical connector device equipped with a shielding function that can prevent interference during signal transmission.

The electrical connector device includes a first connector and a second connector that are coupled to each other. The first connector and the second connector include an insulating first housing and a second housing, a first contact member and a second contact member made of a conductive member for signal connection, and an outer portion of the first contact member and the second contact member. It consists of a conductive first shield shell and a second shield shell that surround it.

However, the electrical connector device is structured to be shielded using a shield shell that surrounds the outside of the contact member, and there was a problem in that it was not possible to shield between the contact members arranged in two rows facing each other along the connector.

In addition, the electrical connector device has a first shield shell and a second shield shell provided at the first connector and the second connector, respectively, so there is a problem in that the electrical connector device becomes bulky and takes up a lot of space in the electronic device.

Publication Patent Publication No. 2021-0100391 (2021.08.17) discloses a connector for connecting a board to solve the problems of the electrical connector device described above.

The connector for connecting a board is composed of a first connector including a first housing and a first terminal disposed on a first substrate, and a second connector including a second housing and a second terminal disposed on a second substrate. do. The second connector is provided with a protrusion made of a conductive material that shields between second terminals arranged in two rows facing each other, and a shielding member made of a conductive material that surrounds and shields the outside of the second terminal.

However, the above-described connector for connecting a board has a problem in that the second connector is provided with a protrusion and a shielding member to prevent signal interference, so the structure of the second connector is complicated and its volume increases. In addition, the shielding member cannot completely surround the outside of the second terminal, and a portion of the second terminal protrudes further outward than the shielding member, resulting in poor shielding performance.

Registered Patent Publication No. 10-2240783 (2021.04.14.) Public Patent Publication No. 2021-0100391 (2021.08.17)

The present invention is intended to solve the problems of the prior art described above, and its purpose is to provide a board-to-board type connector with enhanced internal and external shielding functions to prevent interference during signal transmission.

In addition, the present invention aims to provide a board-to-board type connector that has excellent shielding function and can be miniaturized.

The board-to-board type connector according to the present invention for achieving the above purpose is a connector that connects a board to a board or a board to a component, and is composed of a first connector and a second connector that can be coupled and separated.

The first connector includes a first housing extending in one direction, first terminals for signal transmission arranged in two rows along the first housing, and a first shield that shields between the first terminals arranged in two rows. It is composed.

The first shield is provided at both ends of the first housing, and consists of an edge body surrounding an end of the first housing, and a baffle extending from the edge body.

In addition, the second connector includes a second housing extending in one direction, second terminals for signal transmission arranged in two rows along the second housing, and a second connector surrounding the circumference of the second housing where the second terminals are arranged. It consists of the second shield.

The second shield is provided at both ends of the second housing and consists of a guard fence surrounding the end of the second housing and a contact formed on the guard fence.

According to the present invention described above, since the inside and outside of the connector are shielded by the first shield and the second shield, interference between RF signals in the high frequency band transmitted from the connector can be prevented, and RF signals in the high frequency band can be transmitted at high speed. It can be sent to .

In addition, the present invention can simplify the structure of each connector, minimize the volume of the connector, and improve productivity by arranging the first shield and the second shield in different connectors.

Additionally, according to the present invention, since the first shield and the second shield are composed of a pair of the same shape, the pin-map structure can be configured in various ways. For example, it can be configured in various ways, such as ground (GND)/ground (GND) or ground (GND)/power (Vbus).

In addition, the present invention can effectively block noise emitted to the outside through the first shield and the second shield, thereby reducing the influence of noise on adjacent circuits and/or components.

1 is a diagram showing a first connector of a board-to-board type connector according to an embodiment of the present invention.
Figure 2 is a diagram showing a first terminal and a first shield shell of a first connector according to an embodiment of the present invention.
Figure 3 is a diagram showing a second connector of a board-to-board type connector according to an embodiment of the present invention.
Figure 4 is a diagram showing a second terminal and a second shield shell of a second connector according to an embodiment of the present invention.
Figure 5 is a diagram showing a board-to-board type connector according to an embodiment of the present invention.
Figure 6 is a diagram showing a separated state of a board-to-board type connector according to an embodiment of the present invention.
FIGS. 7 to 9 are cross-sectional views taken along lines AA, BB, and CC of FIG. 5.

The above-mentioned objects, features, and advantages will be described in detail later with reference to the attached drawings, so that those skilled in the art will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of known technologies related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. In the drawings, identical reference numerals are used to indicate identical or similar components.

Although first, second, etc. are used to describe various components, these components are of course not limited by these terms. These terms are only used to distinguish one component from another component, and unless specifically stated to the contrary, the first component may also be the second component.

Throughout the specification, unless otherwise stated, each element may be singular or plural.

Hereinafter, the “top (or bottom)” of a component or the arrangement of any component on the “top (or bottom)” of a component means that any component is placed in contact with the top (or bottom) of the component. Additionally, it may mean that other components may be interposed between the component and any component disposed on (or under) the component.

Additionally, when a component is described as being “connected,” “coupled,” or “connected” to another component, the components may be directly connected or connected to each other, but the other component is “interposed” between each component. It should be understood that “or, each component may be “connected,” “combined,” or “connected” through other components.

As used herein, singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, terms such as “consists of” or “comprises” should not be construed as necessarily including all of the various components or steps described in the specification, and some of the components or steps may include It may not be included, or it should be interpreted as including additional components or steps.

Additionally, as used herein, singular expressions include plural expressions, unless the context clearly dictates otherwise. In the present application, terms such as “consists of” or “comprises” should not be construed as necessarily including all of the various components or steps described in the specification, and some of the components or steps may include It may not be included, or it should be interpreted as including additional components or steps.

Throughout the specification, when referred to as “A and/or B”, this means A, B or A and B, unless specifically stated to the contrary, and when referred to as “C to D”, this means unless specifically stated to the contrary. Unless there is one, it means that it is C or higher and D or lower.

Figure 1 is a diagram showing the first connector of a board-to-board type connector according to an embodiment of the present invention, and Figure 2 is a diagram showing the first terminal and the first shield shell of the first connector according to an embodiment of the present invention. This is a drawing.

As shown in the drawing, the first connector 100 is a plug connector that is inserted and coupled to the counterpart second connector (200 in FIGS. 3 and 4) (see FIGS. 5 and 6).

The first connector 100 includes a first housing 110, a first terminal 120, and a first shield 130.

The first housing 110 has a rectangular parallelepiped block shape extending in one direction. This first housing 110 is made of insulating or heat-resistant synthetic resin, and is formed integrally with the first terminal 120 and the first shield 130 through insert injection.

The first terminal 120 is a terminal for signal transmission and is composed of a plurality of terminals arranged opposite to each other on both sides of the first housing 110. That is, the first terminals 120 are arranged in two rows along the first housing 110 and are arranged to face each other.

The above-described first terminal 120 is in contact with the first lead portion 122 mounted on a printed circuit board (not shown) and the second terminal (220 in FIG. 3) of the second connector (200 in FIG. 3). It consists of a contact part 124.

Here, the first lead portion 122 is bent into an L shape so that it can be mounted on a printed circuit board (not shown). Additionally, the first contact portion 124 is bent into a P shape to improve contact force with the second terminal 220.

In this way, when bending the first contact portion 124 into a P-shape, the contact force with the second terminal 220 can be maintained constant even when vibration and impact are applied, and the second contact force coupled to the first connector 100 The connector 200 can be prevented from being randomly separated.

The first shield 130 is a shielding means to prevent interference during signal transmission, and consists of a pair provided at the front and rear ends of the first housing 110, respectively.

The first shield 130 consists of an edge body 132 surrounding the end of the first housing 130 and a baffle 134 extending from the edge body 132. At this time, the baffle 134 is located between the first terminals 120 arranged in two rows to block noise between the first terminals 120 when transmitting signals.

The first shield 130 of this embodiment may serve as a ground terminal or/and a power terminal in addition to the shielding function. That is, a pair of first shields 130 with the same structure and shape can be used as a ground (GND)/ground (GND) terminal or as a ground (GND)/power (Vbus) terminal.

Meanwhile, a contact groove 136 is formed in the edge body 132 of the first shield 130 for contact with the guard fences 232 to 236 of the second shield 230, which will be described later. The contact groove 136 maintains a constant contact force with the second shield 230 and simultaneously prevents the second connector 200 coupled to the first connector 100 from being separated arbitrarily.

Figure 3 is a diagram showing the second connector of the board-to-board type connector according to an embodiment of the present invention, and Figure 4 is a diagram showing the second terminal and the second shield shell of the second connector according to an embodiment of the present invention. This is a drawing.

As shown in the drawing, the second connector 200 is a receptacle connector into which the counterpart first connector (100 in FIGS. 1 and 2) is inserted and coupled (see FIGS. 5 and 6).

The second connector 200 includes a second housing 210, a second terminal 220, and a second shield 230.

The second housing 210 has a rectangular parallelepiped block shape extending in one direction, and a space 212 into which the first connector 100 is inserted is formed therein. This second housing 210 is made of insulating or heat-resistant synthetic resin, and is formed integrally with the second terminal 220 and the second shield 230 through insert injection.

The second terminal 220 is a terminal for signal transmission and is composed of a plurality of terminals arranged opposite to each other on both inner walls of the second housing 210. That is, the second terminals 220 are arranged in two rows along the inner wall of the second housing 210 and are arranged to face each other.

The above-described second terminal 220 is in contact with the second lead portion 222 mounted on a printed circuit board (not shown) and the first terminal (120 in FIG. 1) of the first connector (100 in FIG. 1). It consists of a contact part 224.

Here, the second lead portion 222 is bent into an L shape so that it can be mounted on a printed circuit board (not shown). Additionally, the second contact portion 224 is bent into a wave shape to improve contact force with the first terminal 120.

In this way, when the second contact portion 224 is bent into a wave shape, the contact force with the first terminal 120 can be maintained constant even when vibration and shock are applied, and the first connector coupled to the second connector 200 (100) can be prevented from being randomly separated.

The second shield 230 is a shielding means to prevent interference during signal transmission, and is composed of a pair that surrounds the front and rear ends of the second housing 210, respectively. That is, the second shield 230 is provided to entirely surround the circumference of the second housing 210.

The second shield 230 consists of a guard fence 232 to 236 surrounding the end of the second housing 210 and contacts 238 and 239 formed on the guard fences 232 to 236.

The guard fences 232 to 236 have an approximately C-shape so as to surround the end of the second housing 210. That is, the guard fences 232 to 236 include a first fence portion 232 surrounding the end surface of the second housing 210 and a second fence portion 234 surrounding both sides of the second housing 210. It comes true.

Here, a skirt 236 is formed on at least a portion of the second fence portion 234. The skirt 236 protrudes obliquely outward to cover the second lead portion 222 exposed to the outside of the second housing 210.

In this way, when the skirt 236 is formed on the second shield 230, the distance from the second terminal 220 can be maintained constant, and the energy emitted from the second terminal 220 to the outside of the second housing 210 Noise can be effectively blocked.

Therefore, the noise impact on circuits and/or components placed adjacent to the connector can be reduced.

The contacts 238 and 239 are composed of a first contact 238 formed on the first fence portion 232 and a second contact 239 formed on the second fence portion 234.

A contact protrusion 237 is formed on the first contact 238 to be inserted into the contact groove 136 of the edge body 132 of the first shield 130. The contact groove 136 and the contact protrusion 237 maintain the contact force between the first shield 130 and the second shield 230 constant, and at the same time, the first connector 100 coupled to the second connector 200 is arbitrarily prevent separation.

The second contact 239 is bent into a question mark shape to prevent deformation and damage when the first connector 100 and the second connector 200 are coupled and separated.

Figure 5 is a diagram showing a board-to-board type connector according to an embodiment of the present invention, Figure 6 is a diagram showing an exploded state of a board-to-board type connector according to an embodiment of the present invention, and Figure 7 Figures 9 through 9 are diagrams showing cross sections A-A, B-B, and C-C of Figure 5.

The board-to-board type connector according to this embodiment is a connector that connects a board to a board or a board to a component. More specifically, it is a connector with a strengthened shielding function to prevent interference during signal transmission.

As shown in the drawing, the board-to-board type connector 10 is composed of a first connector 100 of a plug structure and a second connector 200 of a receptacle structure.

The first connector 100 includes a first housing 110, and the first housing 110 includes first terminals 120 for signal transmission arranged in two rows and a first terminal for shielding between the first terminals 120. It consists of a shield (130).

In addition, the second connector 200 includes a second housing 210 in which a space 212 for insertion of the first connector 100 is formed, and the second housing 210 includes a signal transmission device arranged in two rows. It consists of a second terminal 220 and a second shield 230 surrounding the second terminal 220.

According to the board-to-board type connector 10 described above, the baffle 134 of the first shield 130 is located between the first and second terminals 120 and 220 arranged in two rows, so that the high frequency band transmitted from the connector is Interference between RF signals can be prevented, and RF signals in the high frequency band can be transmitted at high speed.

In particular, a skirt 236 is formed on the second shield 230 surrounding the first and second terminals 120 and 220, so that noise emitted to the outside from the first and second terminals 120 and 220 can be effectively blocked. It is possible to reduce the noise impact on properly placed circuits and/or components.

In addition, the connector 10 of this embodiment has the structure of each connector 100 and 200 by arranging the first shield 130 and the second shield 230 on the first connector 100 and the second connector 200, respectively. It can be simplified, the volume of the connectors 100 and 200 can be minimized, and productivity can be improved.

In addition, the connector 10 of this embodiment is composed of a pair of the first shield 130 and the second shield 230 of the same shape, so ground (GND)/ground (GND) or ground (GND/power) The pin-map structure can be configured in various ways, such as (Vbus).

As described above, the present invention has been described with reference to the illustrative drawings, but the present invention is not limited to the embodiments and drawings disclosed herein, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. It is obvious that transformation can occur. In addition, although the operational effects according to the configuration of the present invention were not explicitly described and explained while explaining the embodiments of the present invention above, it is natural that the predictable effects due to the configuration should also be recognized.

10: Board-to-board type connector
100: first connector 110: first housing
120: Terminal 1 130: 1st Shield
200: second connector 210: second housing
220: Terminal 2 230: 2nd Shield

Claims (12)

In a board-to-board type connector that connects a board to a board or a board to a component,
The connector is.
A first connector consisting of a first housing extending in one direction, first terminals for signal transmission arranged in two rows along the first housing, and a first shield for shielding between the first terminals arranged in two rows; and
A board-to-board type connector including a second connector that can be coupled to the first connector and is provided with a second shield surrounding the circumference.
In claim 1,
A board-to-board type connector, characterized in that the first shield consists of a pair provided on both ends of the first housing.
In claim 2,
The first shield is a board-to-board type connector, characterized in that it consists of an edge body surrounding an end of the first housing and a baffle extending from the edge body.
In claim 3,
The first terminal has an angle shape consisting of a first contact portion and a first lead portion, and the first contact portion is bent into a P-shape. A board-to-board type connector.
The method according to any one of claims 1 to 4,
The second connector includes a second housing extending in one direction, second terminals for signal transmission arranged in two rows along the second housing, and a second terminal surrounding the second housing where the second terminals are arranged. A board-to-board type connector characterized by consisting of a second shield.
In claim 5,
A board-to-board type connector, characterized in that the second shield consists of a pair provided on both ends of the second housing.
In claim 6,
The second shield is a board-to-board type connector, characterized in that it consists of a guard fence surrounding an end of the second housing and a contact formed on the guard fence.
In claim 7,
The guard fence is a board-to-board type connector, characterized in that it consists of a first fence portion surrounding an end surface of the second housing and a second fence portion surrounding a side surface of the second housing.
In claim 8,
A board-to-board type connector, characterized in that a skirt protruding obliquely outward is formed on at least a portion of the second fence portion.
In claim 7,
A board to board type connector, characterized in that the contact is composed of a first contact formed on the first fence part and a second contact formed on the second fence part.
In claim 10,
A board-to-board type connector, wherein the second contact is bent into a question mark shape.
In claim 5,
The second terminal has an angle shape consisting of a second contact part and a second lead part, and the second contact part is bent in a wave shape.