CN103682738B - A kind of connector and board to board connector pair - Google Patents

Abstract

The invention relates to a connector and a board-to-board connector pair. According to an embodiment of the present invention, the connector includes: a plurality of terminals; and a housing including: a pair of end portions spaced apart from each other; a pair of side wall portions connected to each other through the end portions; a protruding portion , which is located between the side wall portions and extends along the longitudinal direction of the housing; and a plurality of recesses, which are respectively formed between the protruding portion and the side wall portion, for at least partially accommodating the plurality of terminals; wherein the protruding portion has a stopper, and when the butt connector is pulled out from the connector, the stopper can be used to limit the terminal in the butt connector Movement in the pull-out direction.

Description

Connector and board-to-board connector pair

technical field

The present invention relates to a connector that can be used to interconnect a pair of mating connectors, and a board-to-board connector pair.

Background technique

Board-to-board connector pairs are used to connect a pair of parallel circuit boards together. This pair of board-to-board connectors is connected to respective opposing surfaces of the pair of circuit boards by close fitting, so that they are electrically connected to each other.

A board-to-board connector is disclosed in the patent document No. 200911000126.4, which includes a first terminal with a first contact portion arranged on one side surface of the concave insertion portion and another contact portion disposed on the concave insertion portion A second contact portion on one side surface; a second terminal having a first contact portion arranged on one side surface of the male insertion portion to extend in the insertion direction of the male insertion portion and contact the first contact portion of the first terminal. A contact portion, and a second contact portion arranged on the other side surface of the male insertion portion to extend in the direction of insertion of the male insertion portion and contact the second contact portion of the first terminal; when the male insertion When the portion is inserted into the concave insertion portion, the common gap between the first contact portion and the second contact portion of the first terminal increases and then decreases as the second terminal is pressed in. When the two connectors are mated, the bottoms 101, 102 of the connectors can separate the terminals 103, 104 of the connectors from the circuit board to protect the circuit board. However, as shown in FIG. 1, its disadvantage is that since the thickness of terminals is generally thin today, for example, 0.08 mm, when the mating connector (not shown) is separated from the connector 10, the terminals 103 of the connector 10 , 104 will also rotate upwards accordingly (for example, rotate around the side wall portions 105, 106 of the connector 10), which tends to cause the overall deformation of the terminals 103, 104, thus resulting in the failure of the terminals 103, 104.

On the other hand, FIG. 2 shows a schematic cross-sectional view of a connector 10 in another commonly used board-to-board connector pair in the prior art. It can be seen from FIG. 1 that the terminals 201, 202 in the connector 20 are inserted from the bottom and fixed by the stopper 203, so that when the mating connector (not shown) is pulled out from the connector 20, it can Rotational movement of the terminals 201 , 202 is avoided, thereby avoiding overall deformation of the terminals 201 , 202 . However, its disadvantage is that when the mating connector is fitted into the connector 20, due to the thinner thickness of the terminals 201, 202, the terminals 201, 202 as a whole will also move down, whereby the bottom of the terminals 201, 202 will touch the circuit board 204, thereby potentially affecting other important components on the circuit board 204.

Contents of the invention

It can be seen that the structure of the connector in the background technology cannot meet the requirements of avoiding direct contact between the terminals of the connector and the circuit board when the docking connector is inserted into the connector, and when the docking connector is pulled out from the connector, Avoid these two conditions of connector terminal rotation deformation.

Based on the above technical problems, a connector and a corresponding board-to-board connector pair are proposed here, which can not only well separate the terminals of the connector from the circuit board when the butt connector is assembled as a connector, but also When the mating connector is pulled out, the movement of the terminal of the connector can be well held and restricted, thereby avoiding deformation of the terminal.

According to a first aspect of the present invention, there is provided a connector for interconnecting a pair of mating connectors, the connector comprising: a plurality of terminals; and a housing comprising: a pair of ends spaced apart from each other; a pair of side wall portions connected to each other by the end portions; protrusion portions located between the side wall portions and extending in the longitudinal direction of the housing; and a plurality of recesses formed on the protrusion portions, respectively. part and the side wall part, for at least partly accommodating the plurality of terminals; wherein the protruding part has a limiting part, when the mating connector is pulled out from the connector, the The limiting part can be used to limit the movement of the terminal in the pulling-out direction of the mating connector.

Here, the connector can be, for example, a female connector. Instead, the mating connector can be, for example, a male connector.

In a preferred embodiment, there is a bottom plate under the recess, used to separate the terminals from the circuit board when the mating connector is assembled into the connector.

In a preferred embodiment, the terminal includes a holding portion fixed on the outer side of the side wall, a tail portion connected to the holding portion, and a U-shaped contact portion connected to the holding portion, wherein when the When the butt connector is not assembled into the connector, there is a transverse gap between the head of the U-shaped contact portion and the limiting portion, and as the butt connector is assembled into the connector, the The lateral gap decreases until the head is located below the limiting portion.

In a preferred embodiment, the limiting portion includes a flange extending from the upper portion of the protruding portion along the transverse direction of the housing.

In a preferred embodiment, the bottom plate has a process port.

According to a second aspect of the present invention, a board-to-board connector pair is proposed, comprising: a connector including a plurality of terminals; and a housing including: a pair of end portions spaced apart from each other; a pair of side wall portions , which are connected to each other through the end portions; a protruding portion, which is located between the side wall portions and extends along the longitudinal direction of the housing; and a plurality of concave portions, which are respectively formed on the protruding portion and the Between the side wall parts, for at least partially accommodating the plurality of terminals; a butt connector, which is configured to be mated and engaged with the connector by fitting; wherein, the protruding part has a limiting part, When the butting connector is pulled out from the connector, the limiting part can be used to limit the movement of the terminal in the direction in which the butting connector is pulled out.

In a preferred embodiment, there is a bottom plate under the recess, used to separate the terminals from the circuit board when the mating connector is assembled into the connector.

In a preferred embodiment, the terminal includes a holding portion fixed on the outer side of the side wall portion, a tail portion connected to the holding portion, and a U-shaped contact portion connected to the holding portion, wherein, when When the butt connector is not assembled into the connector, there is a transverse distance between the head of the U-shaped contact portion and the limiting portion, and as the butt connector is assembled into the connector, the The transverse gap decreases until the end is located below the limiting portion.

In a preferred embodiment, the limiting portion includes a flange extending from the upper portion of the protruding portion along the transverse direction of the housing.

It can be seen from the embodiments of the present invention that, through the configuration of the limiting portion and the bottom plate, the board-to-board connector pair can avoid contact with the circuit board when they are assembled together, thereby Avoiding affecting other components on the circuit board can also avoid deformation of the terminals when the pair of board-to-board connectors is separated. Furthermore, considering the thinness of the terminals, in the preferred embodiment of the present invention, two contact points are realized between the terminals of the connector and the terminals of the mating connector, thereby maintaining the reliability of the electrical connection.

On the other hand, in the present invention, only the female connector needs to be changed, and the male connector does not need to be changed, thereby further simplifying the manufacturing process and simply solving the technical problems existing in the background technology, and at the same time No negative effects will be introduced.

Description of drawings

Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 shows a schematic cross-sectional view of a connector 10 in a board-to-board connector pair in the prior art;

FIG. 2 shows a schematic cross-sectional view of a connector 20 in another board-to-board connector pair in the prior art;

FIG. 3 shows an exploded schematic diagram of a connector 30 of a board-to-board connector pair according to an embodiment of the present invention;

FIG. 4 shows a schematic perspective view of a mating connector of a board-to-board-to-connector pair according to an embodiment of the present invention and a schematic perspective view of a board-to-board connector pair assembled with the connector 30 in FIG. 3;

FIG. 5 shows a schematic cross-sectional view of a connector 30 in a board-to-board connector pair according to an embodiment of the present invention;

6-8 show schematic diagrams of the process of assembling a pair of board-to-board connectors according to an embodiment of the present invention;

Figure 9 shows a schematic diagram of the process of separating board-to-board connector pairs according to an embodiment of the present invention;

FIG. 10 shows a schematic cross-sectional view of a connector 40 in a board-to-board connector pair according to another embodiment of the present invention; and

FIG. 11 shows a schematic cross-sectional view of a connector 50 in a board-to-board connector pair according to yet another embodiment of the present invention;

In the figures, the same or similar reference numerals designate corresponding features throughout the different views.

detailed description

In the following detailed description of the preferred embodiment, reference is made to the accompanying drawings which form a part hereof. The accompanying drawings show, by way of example, specific embodiments in which the invention can be practiced. The illustrated embodiments are not intended to be exhaustive of all embodiments in accordance with the invention. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. Accordingly, the following detailed description is not limiting, and the scope of the invention is defined by the appended claims.

In the following detailed description, reference is made to the accompanying drawings. The accompanying drawings, which constitute a part of this invention, show by way of example specific embodiments in which the invention can be practiced. In this regard, directional terms such as "left", "right", "top", "bottom", "front", "rear", "lead", "forward", "rear", etc., Refer to the directions described in the accompanying drawings for use. Components of embodiments of the present invention may thus be positioned in a variety of different orientations, and directional terms are used for purposes of illustration and not limitation. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. Accordingly, the following detailed description is not limiting, and the scope of the invention is defined by the appended claims.

FIG. 3 shows an exploded schematic diagram of a connector 30 of a board-to-board connector pair according to an embodiment of the present invention.

As shown in FIG. 3 , here, for the sake of clarity, the connector 30 is decomposed into a terminal portion 301 including a plurality of terminals 3011 and a housing 302 . Wherein, the terminal part 301 is composed of a plurality of terminals 3011, and the terminals 3011 are preferably an integral piece formed by applying, such as stamping and bending, a conductive metal plate.

The housing 302 is the body of the connector 30 and is mainly made of insulating material, such as synthetic resin. The housing 302 is substantially a rectangular parallelepiped member having an outer shape of a substantially rectangular shape. The housing 302 includes a pair of end portions 3021 , 3022 spaced apart from each other, and side wall portions 3023 and 3024 connected to each other through the end portions 3021 , 3022 .

There are recesses 3025, 3026 in the housing 302 for receiving a mating connector (not shown). Between the concave portions 3025 , 3026 there is a protruding portion 3027 extending in the longitudinal direction of the housing 302 and integrally formed with the housing 302 . Here, although two protruding parts 3027 are shown, those skilled in the art should understand that the number of protruding parts 3027 can be configured as required.

A plurality of recesses 3029 , 3030 are respectively formed between the side wall portions 3023 , 3024 and the protruding portion 3027 for at least partially receiving the terminals 3011 . These recesses may communicate with the recesses 3025, 3026, or be part of the recesses 3025, 3026, for example.

There is a limiting portion 3031 above the protruding portion 3027 , and when the mating connector (not shown) is pulled out from the connector 30 , the limiting portion 3031 can be used to limit the movement of the terminal 3011 in the direction in which the mating connector is pulled out. Preferably, the limiting portion 3031 includes a flange extending from the upper portion of the protruding portion 3037 along the lateral direction of the housing 302 .

The recesses 3029 , 3030 respectively have bottom plates 3032 , 3033 for restricting the downward movement of the terminals 3011 when the mating connector is assembled into the connector 30 , thereby separating the terminals 3011 from the circuit board. Similar to the protruding portion 3028, the bottom plates 3032, 3033 also extend along the longitudinal direction of the housing 302, and can form an L-shaped profile with the side wall portions 3023, 3024 respectively, so that when the mating connector is assembled into the connector 30 , the movement of the terminal 3011 is restricted both sideways and bottom, in other words, the terminal 3011 can only move toward the protruding portion 3028 . Preferably, the bottom plates 3032, 3033 also have process ports (not shown).

FIG. 4 shows a schematic perspective view of a mating connector of a board-to-board-to-connector pair according to an embodiment of the present invention and a schematic perspective view of assembling with the connector 30 in FIG. 3 to form a board-to-board connector pair. The butt connector 41 matched with the connector 30 in FIG. 3 is shown at the top of FIG. 4 . Through assembly, the butt connector 41 and the connector 30 can be assembled into a board-to-board connector shown at the bottom of FIG. 4 Right 40. The assembly process will be described in detail below.

FIG. 5 shows a schematic cross-sectional view of a connector 50 of a board-to-board connector pair according to an embodiment of the present invention. The connector 50 is in an unassembled state, that is, when it is not assembled with a mating connector.

As shown in the figure, specifically, the housing 501 includes bottom plates 5011 , 5012 , protruding portions 5013 , and side wall portions 5014 , 5015 . There is a limiting portion 5016 above the protruding portion 5013 , which includes a flange extending from the upper portion of the protruding portion 5013 along the lateral direction of the housing 501 . There is a clearance under the flange for receiving the deformed movement of the terminals 502 , 503 toward the protruding portion 5013 when the mating connector is fitted into the connector 50 . The bottom plates 5011, 5012 are preferably integrally connected with the side wall portions 5015, 5014 respectively, so that the concave portions 5017, 5018 are respectively formed in combination with the protruding portions 5013. Recesses 5017 , 5018 also extend in the longitudinal direction of the housing 501 for at least partially receiving the terminals 502 , 503 .

Specifically, taking the terminal 502 as an example, it includes a holding portion 5021 , a tail portion 5022 connected to the holding portion 5021 , and a U-shaped contact portion 5023 connected to the holding portion 5021 . The holding portion 5021 is a portion extending in the vertical direction of the casing 501 and is fixed to the side wall portion 5014 by fitting. The tail part 5022 is bent to be connected to the holding part 5021, and the tail part 5022 extends outward along the lateral direction of the housing 501, and can be connected to the circuit board by soldering or other similar methods, for example. The U-shaped contact portion 5023 is at least partially received within the recess 5018 . Wherein, when the butt connector is not assembled into the connector, there is a transverse gap between the head 5024 of the U-shaped contact portion and the limiting portion 5016 .

As for the other terminal 503 , similar to the terminal 502 , it also includes a holding portion 5031 , a tail portion 5032 connected to the holding portion 5031 , and a U-shaped contact portion 5033 connected to the holding portion 5031 . Similarly, the holding portion 5031 is a portion extending in the vertical direction of the housing 501, which is fixed to the side wall portion 5015 by fitting. The tail part 5032 is bent to be connected to the holding part 5031, and the tail part 5032 extends outward along the lateral direction of the housing 501, and can be connected to the circuit board by soldering or other similar methods, for example. The U-shaped contact portion 5033 is at least partially received within the recess 5017 . Wherein, when the mating connector is not assembled into the connector, there is also a transverse gap between the head 5034 of the U-shaped contact portion and the limiting portion 5016 .

6-8 show schematic diagrams of the process of assembling a pair of board-to-board connectors according to an embodiment of the present invention.

FIG. 6 shows the situation when the mating connector 70 has just been assembled into the connector 60 . Here, the structure of the connector 60 is the same as the structure of the connector 50 shown in FIG. 5 , so the specific structures of the connector 60 will not be described in detail again. Similar to the connector 50 in FIG. 5 , the connector 60 includes a head 6024 , 6034 connecting a limiting portion 6016 and a U-shaped contact portion 6023 , 6033 .

The butt connector 70 is configured for mating engagement with the connector 60 by fitting, wherein the terminals 701, 702 of the butt connector 70 are respectively adapted to be fitted into the female-shaped insertion portions 61, 62 substantially formed by U-shaped contact portions 6023, 6033 .

As shown, as the terminals 701, 702 enter the concave insertion portions 61, 62, the terminals 602, 603 will move downward as a whole. And the terminals 602 and 603 will be deformed and expand to both sides respectively. Therefore, the terminals 602 , 603 will approach the protruding portion 6013 . Thus, the transverse gap between the terminals 602, 603 and the limiting portion 6016 is reduced.

FIG. 7 shows the situation when the mating connector 70 is further assembled into the connector 60 . It can be seen from FIG. 7 that compared with FIG. 6 , since the terminals 701 , 702 of the mating connector 70 further enter the concave insertion portions 61 , 62 , the terminals 602 , 603 will further move downward.

Specifically, the U-shaped contact portions 6023, 6033 of the terminals 602, 603 are in contact with the bottom plates 6012, 6011 respectively, so that the bottom plates 6012, 6011 respectively limit the downward movement of the terminals 602, 603, and at the same time make the terminals 602, 603 Separated from a circuit board (not shown). On the other hand, at this time, the terminals 602 and 603 will continue to deform respectively. Specifically, since the bottom plates 6011 , 6012 and the sidewalls 6014 , 6015 of the housing 60 limit the movement of the terminals, the terminals 602 , 603 can only deform and move toward the protruding portion 6013 . Specifically, the heads 6024 , 6034 of the U-shaped contact parts 6023 , 6033 will respectively deform into the lower part of the limiting part 6016 , that is, into the gap below the limiting part 6016 . In a preferred embodiment of the present invention, the limiting portion 6016 includes a flange extending transversely, whereby the heads 6024, 6034 will enter under the flange.

FIG. 8 shows the situation when the butt connector 70 is fully assembled into the connector 60 , that is, the situation where the butt connector 70 is completely matched with the connector 60 .

As shown in FIG. 8 , at this time, the bottom plates 6011 , 6012 of the connector 60 respectively separate the terminals 602 , 603 from the circuit board and restrict the downward movement of the terminals 603 , 602 . Specifically, compared to FIG. 7 , the heads 6024 , 6034 of the U-shaped contact portions 6023 , 6033 of the terminals 602 , 603 are further deformed and enter under the flange of the upper limiting portion 6016 of the protruding portion 6013 . At this time, there are two contact points between the terminal 602 and the terminal 701 and between the terminal 603 and the terminal 702, so that the reliability of the electrical connection is maintained when the terminal is relatively thin.

FIG. 9 shows a schematic diagram of the process of separating board-to-board connector pairs according to one embodiment of the present invention. As shown in FIG. 9 , the docking connector 70 is pulled out from the connector 60 . As the terminals 701 and 702 of the mating connector 70 move upward, the terminals 602 and 603 of the connector 60 will also undergo corresponding deformation and move upward accordingly. Specifically, since the holding portion 6021 of the terminal 602 and the holding portion 6031 of the terminal 603 are respectively fixed on the side wall portions 6014 and 6015 of the housing 60, as the mating connector 70 is pulled out from the connector 60, the terminals 602, 603 The head 6024, 6034 of the U-shaped contact portion 6023, 6033 will deform and rotate upwards. However, at this time, the flange of the stopper 616 of the protruding part 6013 prevents the upward movement of the head 6024, 6034, and restricts and blocks the head 6024, 6034, thereby limiting the overall upward movement of the terminals 602, 603. movement (that is, restricting the movement of the terminals 602, 603 in the pulling-out direction of the mating connector 70), thus well preventing the rotation deformation of the entire terminals 602, 603.

FIG. 10 shows a schematic cross-sectional view of a connector 80 of a board-to-board connector pair according to another embodiment of the present invention. FIG. 11 shows a schematic cross-sectional view of a connector 90 in a board-to-board connector pair according to yet another embodiment of the present invention. Compared with the connectors in the previous figures, the connectors 80 and 90 have different protruding parts to adapt to different production processes. In addition, other structures of the connector 80 and the connector 90 are similar to those of the foregoing embodiments, and will not be described in detail here. Similarly, the connectors 80, 90 can also be used to isolate the terminals from the circuit board when the mating connector is assembled into the connector 80, 90, and to limit the contact of the terminals when the mating connector is pulled out of the connector 80, 90. Movement in the direction of mating connector extraction.

Those skilled in the art should understand that the above-mentioned embodiments are illustrative rather than restrictive. Different technical features in different embodiments can be combined to achieve beneficial effects. Those skilled in the art should be able to understand and implement other modified embodiments of the disclosed embodiments on the basis of studying the drawings, specification and claims. For example, those skilled in the art can make further changes to the structure of the connector and also achieve that when the butt connector is assembled into the connector, the terminals are separated from the circuit board, and when the butt connector is pulled out of the connector, the contact of the terminals is limited. Move both techniques to effect. Furthermore, in the claims, the word "comprising" does not exclude other elements.

Claims (6)

1. a kind of connector, available for a butt connector is interconnected, the connector includes：

Multiple terminals；And

Housing, including：

A pair of end portions spaced apart from each other；

A pair of sidewalls portion, it is connected with each other by the end；

Overhang, it is between the side of sidewall portion and along the Longitudinal extending of the housing；With

Multiple recesses, it is respectively formed between the overhang and the side of sidewall portion, for accommodating institute at least in part State multiple terminals；

Wherein described overhang has limiting section, when the butt connector is extracted from the connector, the limiting section The movement on direction is extracted in the butt connector available for the terminal is limited, and there is bottom plate below the recess, For when the butt connector is fitted into the connector, the terminal to be separated with circuit board；

The terminal include be fixed on the outside of the side of sidewall portion maintaining part, be connected to the maintaining part afterbody and institute The U-shaped contact site of maintaining part connection is stated, wherein, when the butt connector is without the connector is incorporated, the U-shaped contact Lateral clearance be present between the head in portion and the limiting section, it is described as the butt connector is fitted into the connector Lateral clearance reduces, until the head is located at the lower section of the limiting section.

2. connector according to claim 1, it is characterised in that the limiting section is included from the top of the overhang Along the flange extended laterally of the housing.

3. connector according to claim 1, it is characterised in that there is technique mouth on the bottom plate.

4. a kind of board to board connector pair, including：

Connector, it includes

Multiple terminals；And

Housing, including：

A pair of end portions spaced apart from each other；

A pair of sidewalls portion, it is connected with each other by the end；

Overhang, it is between the side of sidewall portion and along the Longitudinal extending of the housing；With

Multiple recesses, it is respectively formed between the overhang and the side of sidewall portion, for accommodating institute at least in part State multiple terminals；

Butt connector, it is configured to engage with connector matching by assembling；

Wherein, the overhang has limiting section, when the butt connector is extracted from the connector, the limiting section The movement on direction is extracted in the butt connector available for the terminal is limited, and there is bottom plate below the recess, For when the butt connector is fitted into the connector, the terminal to be separated with circuit board；

Wherein, the terminal includes being fixed on the outside of the side of sidewall portion maintaining part, it is connected to the afterbody of the maintaining part And the U-shaped contact site being connected with the maintaining part, wherein, when the butt connector is without the connector is incorporated, institute State between the head of U-shaped contact site and the limiting section and lateral separation be present, as the butt connector is fitted into the company Device is connect, the lateral clearance reduces, until the head is located at the lower section of the limiting section.

5. connector pair according to claim 4, it is characterised in that the limiting section is included from the upper of the overhang The flange that extends laterally of the portion along the housing.

6. connector pair according to claim 4, it is characterised in that there is technique mouth on the bottom plate.