CN106549277A - Board to board connector - Google Patents

Abstract

The invention discloses a board-to-board connector (100), comprising a male connector (110) and a female connector (120) mated with each other, the male connector includes a first insulating body (111) and a A plurality of first conductive terminals (112) in the first insulating body and adapted to be electrically connected with a circuit board, the female connector includes a second insulating body (121) and is assembled in the second insulating body and is suitable for connecting with another A plurality of second conductive terminals (122) electrically connected to a circuit board, the plurality of first conductive terminals are configured to be plugged into the female connector when the male connector and the female connector are mated with each other It is respectively electrically connected to a corresponding one of the plurality of second conductive terminals, and one of the first insulating body and the second insulating body is provided with a locking structure (113), and the other is provided with a locking structure (123), The lock structure and the lock hole structure are configured to snap engage with each other to prevent the male and female connectors mated with each other from being separated.

Description

Board-to-Board Connector

technical field

Embodiments of the present invention generally relate to the field of connectors, and in particular, to a board-to-board connector with improved connection reliability.

Background technique

Board-to-board connector is a high-speed connector that electrically connects two circuit boards. It provides connection solutions for instrumentation, control equipment, and electrical equipment. It usually includes plug connectors and socket connectors that are mated to each other. The plug connector and the socket connector are respectively connected to corresponding circuit boards through their respective conductive terminals, and the plug connector is inserted into the socket connector to realize the electrical connection of the two circuit boards.

In the existing board-to-board connectors, the plug connector and the receptacle connector are generally held together by the mutual cooperation of their conductive terminals, that is, the holding force between the two is mainly provided by the conductive terminals. With the increasingly higher requirements for connector products, especially in large vibration environments, there may be a risk that the plug connector and socket connector will fall off due to insufficient holding force, and then there will be a risk of product function failure.

Contents of the invention

In order to overcome at least one of the above and other problems and disadvantages of the prior art, the present invention has been proposed.

According to one aspect of the present invention, a board-to-board connector is provided, including a male connector and a female connector mated with each other, wherein the male connector includes a first insulating body and is assembled in the first insulating body And suitable for a plurality of first conductive terminals electrically connected to a circuit board, the female connector includes a second insulating body and a plurality of second conductive terminals assembled in the second insulating body and adapted to be electrically connected to another circuit board Terminals, the plurality of first conductive terminals are configured to be plugged into the female connector when the male connector and the female connector are mated with each other so as to correspond to one of the plurality of second conductive terminals, respectively. Electrically connected, and one of the first insulating body and the second insulating body is provided with a lock structure, and the other is provided with a lock hole structure, and the lock structure and the lock hole structure are configured to snap engage with each other to prevent mutual mating connection The male and female connectors are separated.

Preferably, in the above-mentioned board-to-board connector, the locking structure may include an elastic arm extending from the corresponding insulative body, the end of the elastic arm is provided with a protrusion, and the locking hole structure may include an elastic arm configured to accommodate the elastic arm. The inner wall of the lock hole is formed with a groove configured to accommodate and engage the protrusion to prevent the elastic arm from being disengaged from the lock hole.

Preferably, in the above-mentioned board-to-board connector, the protrusion may have a slope, and there is a slope between the slope and the groove when the protrusion is accommodated and engaged in the groove. space allowing insertion of a portion of a disengaging tool therein to disengage the engagement of the protrusion and the recess.

Preferably, in the above-mentioned board-to-board connector, the corresponding insulating body provided with the locking hole structure may also be provided with a tool insertion hole at least communicating with the space.

Preferably, in the above-mentioned board-to-board connector, the locking structure may include two elastic arms symmetrically arranged at both ends of the corresponding insulating body, and the locking hole structure includes symmetrically formed on the corresponding Two said locking holes in both ends of the insulating body, each locking hole accommodates and engages a resilient arm.

Preferably, in the above-mentioned board-to-board connector, the locking structure may be formed on the first insulating body, and the locking hole structure may be formed on the second insulating body.

Preferably, in the above-mentioned board-to-board connector, one of the first insulating body and the second insulating body may be provided with at least one male-type matching structure, and the other may be provided with at least one female-type matching structure, and each male The form-fitting structures are configured to mate with only one corresponding female form-fitting structure.

Preferably, in the above-mentioned board-to-board connector, the male mating structure may include ribs formed on the corresponding insulating body, and the female mating structure may include grooves, ribs and grooves formed on the corresponding insulating body. The groove extends in the direction in which the male and female connectors mate.

Preferably, in the above-mentioned board-to-board connector, one of the first insulating body and the second insulating body may be provided with at least one male-type guiding structure, and the other may be provided with at least one female-type guiding structure, and the at least one A male-type guiding structure and the at least one female-type guiding structure cooperate with each other to guide mating connection and disconnection between the male-type connector and the female-type connector.

Preferably, in the above-mentioned board-to-board connector, the male fitting structure and the male guiding structure can be arranged on the same insulating body, and the height of the male fitting structure is greater than that of the male guiding structure.

Other objects and advantages of the present invention will be apparent from the following detailed description of the present invention with reference to the accompanying drawings, and may help to provide a comprehensive understanding of the present invention.

Description of drawings

The features and advantages of the present invention can be more clearly understood by reference to the accompanying drawings, which are schematic and should not be construed as limiting the invention in any way, in which:

1A and 1B are exploded schematic diagrams illustrating the structure of a board-to-board connector according to an exemplary embodiment of the present invention from different sides;

2 is a cross-sectional view illustrating a structure of a board-to-board connector according to an exemplary embodiment of the present invention;

3 is an enlarged view illustrating a portion indicated by a dotted circle of the board-to-board connector illustrated in FIG. 2;

4 is a schematic view showing a state before separating a male type connector and a female type connector of a board-to-board connector according to an exemplary embodiment of the present invention using a separation tool; and

FIG. 5 is a schematic view showing a state after a male type connector and a female type connector of a board-to-board connector according to an exemplary embodiment of the present invention are separated using a separation tool.

detailed description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In this specification, the same or similar components are denoted by the same or similar reference numerals. The following descriptions of various embodiments of the present invention with reference to the accompanying drawings are intended to illustrate the general concept of the present invention, but should not be construed as a limitation of the present invention.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the invention. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form to simplify the drawings.

1A and 1B schematically show the structure of a board-to-board connector according to an exemplary embodiment of the present invention from different sides. As shown in the figure, the board-to-board connector 100 includes a male connector 110 and a female connector 120 that are mated and connected to each other. The male connector 110 is mated to the female connector 120 along the insertion direction A and includes a first insulation The body 111 and a plurality of first conductive terminals or contacts 112 assembled in the first insulating body 111 and capable of being electrically connected to a circuit board or other electronic devices (not shown), the female connector 120 includes a second insulating body 121 and a plurality of second conductive terminals or contacts 122 assembled in the second insulating body 121 and capable of being electrically connected with another circuit board or other electronic devices (not shown). The first insulating body and the second insulating body may, for example, be molded from an insulating material such as plastic. When the male connector 110 and the female connector 120 are mated and connected to each other, the first conductive terminal 112 is inserted into the female connector 120 along the insertion direction A, such as inserted into the hole 124 in the female connector 120 , so as to be electrically connected to a corresponding one of the second conductive terminals 122 , so that two circuit boards or other electronic devices can be electrically connected through the male connector 110 and the female connector 120 mated with each other.

According to an embodiment of the present invention, one of the male connector and the female connector is provided with a lock structure, and the other is provided with a lock hole structure, and the lock structure and the lock hole structure are configured to snap engage with each other, by This improves the holding force between the male connector and the female connector, and prevents the male and female connectors mated to each other from being separated from each other even in a vibration environment. In one example, the locking structure and the locking hole structure are formed on the insulating bodies of the male connector and the female connector, for example, integrally formed with the insulating body. Preferably, such engagement of the latch formation and keyhole formation requires the use of a disengagement tool, as described below. In the following, the case where the first insulating body 111 of the male connector 110 is formed with the locking structure 113 and the second insulating body 121 of the female connector 120 is formed with the locking hole structure 123 will be described as an example.

2 and 3, in one example, the locking structure 113 includes an arm 1131 extending from the first insulating body 111, the arm is preferably elastic and has a protrusion 1132 at its end, and the locking hole structure includes a A locking hole 1231 configured to accommodate a resilient arm has an inner wall formed with a groove 1232 configured to receive and engage the protrusion 1132 , for example, a portion of the protrusion 1132 abuts against a substantially perpendicular portion of the groove 1232 On the side wall surface of the insertion direction A (see FIG. 1A ), the arm 1131 can be prevented from detaching from the lock hole 1231 .

In a preferred example, the locking structure 113 includes two arms 1131 substantially symmetrically disposed on both ends of the first insulating body 111 , and the locking hole structure 123 includes two arms 1131 substantially symmetrically formed on both ends of the second insulating body 121 . There are two keyholes 1231 in , each keyhole receives and engages an arm. This symmetrical locking arrangement makes it possible to effectively prevent misalignment, shaking or disengagement between the male and female connectors mated with each other even in a vibration environment.

It can be understood that the lock hole 1231 may be a through hole (as shown in FIG. 2 ) or a blind hole formed in the insulating body. In one example, the arm 1131 is formed of the same material as the insulating body or an elastic material, so it has a certain degree of elasticity, and preferably extends in a direction slightly deviated from the center line of the locking hole 1231, and the arm 1131 is inserted into the locking hole 1231. When the arm 1131 is slightly deformed, the protrusion 1132 at the end of the arm 1131 snaps into the groove 1232 in the lock hole 1231 by virtue of the elasticity or restoring force of the arm 1131 itself, so that it is difficult to separate the protrusion 1132 without applying external force. Snap engagement with groove 1232 .

A separation tool may be used to separate the male connector from the female connector. In order to achieve this separation, as shown in FIGS. 2 and 3 , the protrusion 1132 at the end of the arm 1131 may have a slope 1133 that, when the protrusion 1132 is accommodated and engaged in the groove 1232 of the lock hole 123, the There is a space G between 1133 and the groove 1232, and a part of the separation tool 200 can be inserted into the space G, as shown in FIGS. 4 and 5, to separate the engagement of the protrusion 1132 and the groove 1232. A tool insertion hole 125 at least communicating with the space G may also be disposed in the second insulating body 120 .

Referring to FIGS. 4 and 5 , the separation tool 200 has an insertion part 210 , and an end of the insertion part 210 may have a slope 211 . When separating the mated male connector and the female connector, a downward force F is exerted on the separation tool 200, and its insertion portion 210 is inserted into the tool insertion hole 125 in the second insulating body 120 and enters the inclined surface 1133 and The space G between the grooves 1232, the slope 211 at the end of the insertion part 210 is in contact with the slope 1133 at the end of the arm 1131 and thus pushes the protrusion 1132 away from the groove 1232. With an outward pulling force F, the arm 1131 withdraws from the locking hole 1231 , thereby separating the male connector 110 from the female connector 120 .

In one embodiment, the male connector and the female connector can also be provided with an anti-mis-insertion structure that cooperates with each other to prevent the male connector from being inserted into the female connector in a wrong orientation or orientation, Or prevent an unsuitable or unmated male connector from being plugged into a female connector, so as to realize the correct connection of the two mating connectors of the board-to-board connector.

In one example, as shown in FIGS. 1A and 1B , at least one male-type mating structure 126 is provided on the second insulating body 121 of the female connector 120 , for example, a male-type mating structure 126 , and on the male-type connector 110 The first insulating body 111 is provided with at least one female-type matching structure 116, such as a female-type matching structure 116, and each male-type matching structure 126 is configured to only cooperate with one corresponding female-type matching structure 116, so as to realize anti-corrosion Misinsertion function. In the illustrated example, the male fitting structure 126 may include a rib formed on the outer surface of the second insulating body 121, while the female fitting structure 116 includes a groove formed on the first insulating body 111, for example, Grooves corresponding to the ribs are formed on the inner surface of the first insulating body 111 by the raised structure of the first insulating body 111 , and the grooves and the ribs are complementary in shape. Preferably, the ribs and grooves extend along the insertion direction A mentioned above.

It can be seen that the cooperation between the male mating structure and the female mating structure in this embodiment can not only realize the anti-mis-insertion function, but also guide the mating connection and separation between the male connector and the female connector. Further, in order to achieve more stable guidance, the board-to-board connector 100 may also be provided with an additional matching guide structure. 1A and 1B, the second insulating body 121 is provided with at least one male-type guiding structure 127, such as ribs or ribs, and the first insulating body 111 is provided with at least one female-type guiding structure (not shown). , such as grooves, the male guide structure and the female guide structure cooperate with each other to guide the mating connection and separation between the male connector and the female connector.

In the illustrated example, the male matching structure 126 and the male guiding structure 127 are disposed on the same insulating body 121 , and the height of the male matching structure 126 is greater than that of the male guiding structure 127 . It can be understood that the above-mentioned matching structure and guiding structure can be arranged on the insulating body of the board-to-board connector in different combinations and configurations, so as to realize the functions of preventing mis-insertion and guiding.

While embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention. as defined by the appended claims and their equivalents. In addition, it should be noted that the words "comprising", "comprising" and "having" used herein do not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Furthermore, any element references in the claims should not be construed as limiting the scope of the invention.

Claims (10)

1. A board-to-board connector (100), comprising a male connector (110) and a female connector (120) mated to each other, wherein The male connector includes a first insulating body (111) and a plurality of first conductive terminals (112) assembled in the first insulating body and adapted to be electrically connected to a circuit board, The female connector includes a second insulating body (121) and a plurality of second conductive terminals (122) assembled in the second insulating body and adapted to be electrically connected with another circuit board, and the plurality of first conductive terminals are configured to be plugged into the female connector to be electrically connected to corresponding ones of the plurality of second conductive terminals respectively when the male connector and the female connector are matedly connected to each other, and One of the first insulating body and the second insulating body is provided with a locking structure (113), and the other is provided with a keyhole structure (123), and the locking structure and the keyhole structure are configured to snap engage with each other to prevent mutual cooperation The connected male and female connectors are separated. 2. The board-to-board connector according to claim 1, wherein The locking structure includes an elastic arm (1131) extending from the corresponding insulating body, a protrusion (1132) is provided at the end of the elastic arm, and The lock hole structure includes a lock hole (1231) configured to accommodate the elastic arm, and an inner wall of the lock hole is formed with a groove (1232) configured to receive and engage the protrusion to prevent the elastic arm from coming out of the lock hole. break away. 3. The board-to-board connector according to claim 2, wherein said protrusion has an inclined surface (1133), and when said protrusion is accommodated and engaged in said groove, the inclined surface and said recess There is a space (G) between the grooves, which allows a part of a separation tool (200) to be inserted therein to separate the engagement of the protrusion and the groove. 4. The board-to-board connector according to claim 3, wherein the corresponding insulating body provided with the locking hole structure is also provided with a tool insertion hole (125) at least communicating with the space. 5. The board-to-board connector according to claim 2, wherein The locking structure includes two elastic arms symmetrically arranged at both ends of the corresponding insulating body, and The keyhole structure includes two said keyholes symmetrically formed in both ends of the corresponding insulating body, each keyhole receiving and engaging one elastic arm. 6. The board-to-board connector according to any one of claims 1-5, wherein the locking structure is formed on the first insulating body, and the locking hole structure is formed in the second insulating body. 7. The board-to-board connector according to any one of claims 1-5, wherein one of the first insulating body and the second insulating body is provided with at least one male type mating structure (126), and the other is provided with At least one female mating formation (116), each male mating formation configured to mate with only one corresponding female mating formation. 8. The board-to-board connector according to claim 7, wherein the male mating structure includes ribs formed on the corresponding insulating body, the female mating structure includes grooves formed on the corresponding insulating body, and the ribs The and grooves extend in the direction along which the male and female connectors mate. 9. The board-to-board connector according to claim 7, wherein one of the first insulating body and the second insulating body is provided with at least one male-type guiding structure (127), and the other is provided with at least one female-type guiding structure , the at least one male-type guiding structure and the at least one female-type guiding structure cooperate with each other to guide the mating connection and separation between the male-type connector and the female-type connector. 10. The board-to-board connector according to claim 7, wherein the male mating structure and the male guiding structure are disposed on the same insulating body, and the height of the male mating structure is greater than that of the male guiding structure.