Electrical connector assembly and board-end connector and line-end connector

Abstract

An electrical connector combination includes a board-end connector and a line-end connector that can be docked. The board-end connector includes a first base and a plurality of first terminals. The first base includes a base, two opposite first side walls and a first buckle portion. The base and the two first side walls form a docking space. The first buckle portion has a buckling protrusion that protrudes into the docking space. The first terminal is fixed to the base and includes a contact portion that protrudes into the docking space and a pin extending from the base. The line-end connector includes a second base and a plurality of second terminals. The second base is provided with a second buckle portion that buckles with the first buckle portion. The first base further includes a second side wall. The second side wall is integrally connected to the same side of the base and the two side walls. The second side wall is integrally provided with a first buckle portion. The second base is provided with a second buckle portion that cooperates with the first buckle portion. Compared with the prior art, the board-end connector and the line-end connector of the present invention have buckle portions, so that the two connectors have buckle structures on different sides, increase the plug-in force, and reduce the risk of improper disconnection.

Description

[Technical field]

[0001] The invention relates to an electric connector assembly, which comprises a board end connector and a line end connector which can be buckled with each other. [Background technology]

[0002] Utility model patent announcement No. CN206004039U discloses an electrical connector assembly, wherein the board-end connector is horizontally mounted on a circuit board and includes two opposite left and right side walls, and no upper and lower side walls are provided, and the line-end connector can be inserted into the board-end connector from multiple directions, such as the front-back horizontal direction, or the inclined direction, or the vertical direction from top to bottom. The elastic locking member of the board-end connector and the line-end connector are mutually locked, thereby preventing the two connectors from being improperly disconnected.

[0003] However, in actual use, the insertion and extraction force provided by the locking member is insufficient, and there is a greater risk of improper disconnection.

[0004] Therefore, it is necessary to provide an improved electrical connector assembly to solve the above problems. [Summary of the invention]

[0005] The problem to be solved by the present invention is to provide an electrical connector assembly having a good plugging and unplugging force.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an electrical connector combination, which includes a board-end connector and a wire-end connector that can be docked, the board-end connector includes a first base and a plurality of first terminals, the first base includes a base, two opposite first side walls and a first snap-on portion, the base and the two first side walls form a docking space, the first snap-on portion has a snap-on protrusion protruding into the docking space, the first terminal is fixed to the base and includes a contact portion protruding into the docking space and a pin extending out of the base, the wire-end connector includes a second base and a plurality of second terminals, the second base is provided with a second snap-on portion that is snapped with the first snap-on portion; the first base further includes a second side wall, the second side wall is integrally connected to the same side of the base and the two first side walls, the second side wall is provided with a first snap-on portion, and the second base is provided with a second snap-on portion that cooperates with the first snap-on portion.

[0007] The present invention also adopts the following another technical solution: a board-end connector, which includes a first base and a plurality of first terminals, the first base includes a base, two opposite first side walls and a first snap-on portion, the base and the two first side walls form a docking space, the first terminal is fixed to the base and includes a contact portion and a pin protruding into the docking space, the contact portion is arranged between the two first side walls along a first direction, and the first snap-on portion has a snap-on protrusion protruding into the docking space in the first direction; the first base further includes a second side wall, the second side wall is integrally connected to the same side of the base and the two first side walls, the second side wall is provided with a first snap-on portion, the first snap-on portion and the first snap-on portion are used to snap with a wire-end connector inserted into the docking space to increase the pull-out force of the wire-end connector.

[0008] The present invention also adopts the following another technical solution: a wire end connector, which includes a second base and a plurality of second terminals, the second terminals are arranged along a first direction, the second base is provided with two opposite first side surfaces and a second side surface connecting the two first side surfaces on the same side; the second base further includes a second buckling portion located on each of the first side surfaces and a second buckling portion located on the second side surface, the second buckling portion and the second buckling portion are used together to buckle with a docking board end connector, providing buckling functions from different directions.

[0009] Compared with the prior art, the board-end connector and the line-end connector of the present invention have additional latching parts, so that the two connectors have latching structures on different sides, thereby increasing the plugging and unplugging force and reducing the risk of improper disconnection.

Brief Description of the Drawings

[0010] Figure 1 It is a three-dimensional diagram of the electrical connector assembly of the present invention.

[0011] Figure 2 yes Figure 1 A stereogram from another angle.

[0012] Figure 3 yes Figure 2 A perspective view of the mid-board connector.

[0013] Figure 4 yes Figure 3 A stereogram from another angle.

[0014] Figure 5 yes Figure 2 A perspective view of the centerline connector.

[0015] Figure 6 yes Figure 5 A stereogram from another angle.

[0016] Figure 7It is a three-dimensional diagram of the first and second terminals, one pair of which is separated from each other, and the other five pairs are connected to each other.

[0017] Figure 8 yes Figure 1 Section view along dotted line AA.

[0018] Fig. 9 yes Figure 1 Cross-section along dotted line BB.

[0019]

Component Symbol Description

[0020] Electrical connector assembly 1000 The first holding portion 15 Front face 413 Board connector 100 Buckle hole 151 Terminal slot 41 Wire end connector 200 Concave hole 16 The second buckling portion 42 First base 10 First terminal 20 Groove 421 Docking Space 101 Contact Department 21 Bump 422 Base 11 Frontier 211 The second holding portion 43 Front face 111 Pin 22 Buckling protrusion 431 Rear end face 112 Fixed part 23 Front inclined surface 4311 The first side wall 12 Notches 231, 232 Rear inclined surface 4312 The first buckle portion 13 Projections 233, 234 Boss 44 Holding protrusion 131 Fixed plate 30 Second terminal 50 Cantilever 132 Second base 40 Elastic contact arm 51 Second side wall 14 First side 411 Cable 60 Longitudinal mouth 142 Second side 412 First direction AA

[0021] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. [Specific implementation method]

[0022] In order to facilitate a better understanding of the purpose, structure, characteristics and effects of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.

[0023] Ginseng Figure 1-9 As shown, the electrical connector assembly 1000 of the present invention includes a board-end connector 100 and a line-end connector 200 that can be docked. The board-end connector 100 is used to be installed on a circuit board (not shown), and the rear section of the line-end connector 200 is connected to a cable 60. The terminal of the board-end connector 100 is blade-shaped and is mainly used to transmit power. In practice, due to the transmission of large power, the risk of improper disconnection of the two electrical connectors should be reduced. The specific structure of the electrical connector assembly 1000 will be described in detail below. In the following, the direction in which the connectors dock with each other is defined as the front, and the direction in which the connectors dock with each other is defined as the rear.

[0024] Ginseng Figure 3-4 As shown, the board-end connector 100 includes a first base 10 and a plurality of first terminals 20. The first base 10 includes a base 11, two opposite first side walls 12 and a first buckle portion 13. The base 11 and the two first side walls 12 form a docking space 101. The first buckle portion 13 has a buckling protrusion 131 that protrudes into the docking space 101. Figure 8The first terminal 20 is fixed to the base 11, and includes a contact portion 21 protruding into the docking space 101 and a pin 22 extending out of the base. The contact portion 21 and the pin 22 are connected by a fixing portion 23, and the fixing portion 23 is fixed in the base 11. The fixing portion 23 of the first terminal 20 is an integrated vertical plate-shaped structure with the contact portion 21, and two notches 231, 232 and two protrusions 233, 234 are provided on the upper edge thereof. From front to back, the notches 231, the protrusions 233, the notches 232, and the protrusions 234 are raised one by one, so that the holding force between the fixing portion 23 and the base 11 can be strengthened. The pin 22 is located behind the protrusion 234, and is exposed behind the rear end surface 112 of the base. In this way, sufficient holding force with the circuit board is ensured without increasing the first base 10.

[0025] In a specific embodiment, the direction perpendicularly passing through the two first side walls 12 is defined as the first direction AA (i.e., the left-right direction), and the contact portion 21 of the first terminal is located between the two first side walls 12, and the contact portion 21 is arranged along the first direction AA. The first buckle portion 13 is a pair of arm-shaped structures extending integrally from the base 11, which are respectively located on the inner side of the corresponding first side wall 12, i.e., adjacent to the docking space 101, and can be elastically deformed in the first direction. The first side wall 12 is fixed with a plate fixing member 30 near its bottom surface, which is used to install the board-end connector 100 on the circuit board.

[0026] The first base 10 further includes a second side wall 14, which is integrally connected to the same side of the base 11 and the two first side walls 12. In this embodiment, the board connector 100 is horizontally mounted on the circuit board, and the second side wall 14 is located on the upper surface of the first base 10, while the bottom surface of the first base 10 is not provided with a second side wall. The needle-shaped pin 22 passes through the bottom surface of the base 11 for soldering on the circuit board. The contact portion 21 passes through the front end surface of the base 11 forward (the mating direction is defined as the front), and the first buckling portion 13 is a cantilever 132, which extends forward from the front end surface 111 of the base 11, and the free end is suspended and adjacent to the front end surface of the board connector 100. In this embodiment, the buckling protrusion 131 is formed by protruding inward from the inner side of the free end of the cantilever 132 along the first direction AA. In a direction perpendicular to the second side wall 14, the buckling protrusion 131 occupies a portion of the cantilever 132, that is, the buckling protrusion 131 extends from the upper half of the inner side surface of the free end of the cantilever, and the lower half of the free end of the cantilever is connected to the protrusion structure. In other embodiments, the first buckling portion can also be an arm-shaped structure of other structures that is integrally formed, or a structure that is made of metal and then installed on the first base.

[0027] The second side wall 14 is integrally provided with a first buckling portion 15, which is a buckling hole 151 that penetrates the inside and outside of the second side wall 14. When viewed from a direction perpendicular to the second side wall 14, the buckling hole 151 is located between the front end 211 of the contact portion 21 and the front end surface 111 of the base 11. Fig. 9 The second side wall 14 is provided with a longitudinal opening 142 at a position corresponding to the first buckle portion 13, and the first buckle portion 13 is located within the longitudinal opening 142 when viewed from a direction perpendicular to the second side wall 14, so as to ensure that the arm-like structure has sufficient elastic deformation.

[0028] Ginseng Figure 5-7 As shown, the line end connector 200 includes a second base 40 and a plurality of second terminals 50, and the second terminals 50 are arranged along the first direction. The second base 40 is rectangular, including two opposite first side surfaces 411 and a second side surface 412 along the first direction, and the second side surface 412 connects the same side of the two first side surfaces 311. The second base 40 is provided with a terminal groove 41 arranged along the first direction, and the second terminal 50 is accommodated in the terminal groove 41. The second terminal 50 includes a pair of elastic contact arms 51, and the contact portion 21 of the first terminal is blade-shaped, which is inserted between the pair of elastic contact arms 51 to achieve contact between the first and second terminals. The cable 60 is connected to the rear section of the second terminal. The terminal groove 41 penetrates the front end surface 413 of the second base forward and penetrates the other second side surface downward. The second base 40 is provided with a second buckling portion 42 and a second buckling portion 43. The second buckling portion 42 is provided on the first side surface 411. The first side surface 411 is provided with a groove 421, which penetrates forward and penetrates the second side surface 412 at the same time. A protrusion 422 is provided in the groove 421, and the protrusion 422 divides the groove 421 into two sections, front and back. The groove 421 and the protrusion 422 together form the above-mentioned second buckling portion 42. The second buckling portion 43 is provided on the second side surface 412, and it is a buckling protrusion 431 structure protruding from the second side surface 412.

[0029] A protruding column 44 is further provided on the front end surface 413 of the second base, and a concave hole 16 is provided on the front end surface 111 of the base of the first base 10, and the concave hole 16 penetrates downwardly through the bottom surface of the base 11. After the two connectors are docked, the protruding column 44 is received in the concave hole 16 to further limit the slight offset of the two connectors in the first direction.

[0030] The line end connector 200 is inserted into the board end connector 100 along the front-to-back direction, and the second base 40 is inserted into the docking space 101. Figure 8-9As shown, the two first side surfaces 411 of the second base 40 are inserted along the first buckling portion 13, and the protrusion 422 pushes the first buckling portion 13 outward. After the buckling protrusion 131 passes over the protrusion 422, the first buckling portion 13 rebounds, and the buckling protrusion 131 is accommodated in the rear groove 421, and the buckling protrusion 131 and the protrusion 422 in the front and rear directions push against each other, preventing the first and second buckling portions 13 and 42 from being separated from each other in the front and rear directions. At the same time, the buckling protrusion 431 of the second buckling portion 43 enters the buckling hole 151, thereby providing a greater extraction force. The buckling protrusion 431 has a front end inclined surface 4311 and a rear end inclined surface 4312. The front end inclined surface is used to guide the buckling protrusion to enter the buckling hole 151 when the cable connector is inserted, and the rear end inclined surface 4322 facilitates the guidance of the cable connector when it is withdrawn. The inclination angle of the front end inclined surface is smaller than that of the rear end inclined surface, achieving the effect of small insertion force and large extraction force.

[0031] The board-end connector 100 of the present invention is horizontally mounted on a circuit board. Compared with the existing design, the board-end connector 100 adds a second side wall 14, and the wire-end connector 200 can only be horizontally inserted into the board-end connector from the front-to-back direction, but an additional latching function, namely a first latching portion 15, is added to meet the demand for greater plug-in and pull-out force.

[0032] The above are only preferred embodiments of the present invention, and should not be used to limit the scope of the present invention. That is, all simple equivalent changes and modifications made according to the claims of the present invention and the contents of the present invention description should still fall within the scope of the present invention.

Claims

1. An electrical connector assembly, comprising a board-end connector and a line-end connector that can be docked, the board-end connector comprising a first base and a plurality of first terminals, the first base comprising a base, two opposite first side walls and a first buckle portion, the base and the two first side walls forming a docking space, the first buckle portion having a buckling protrusion protruding into the docking space, the first terminal being fixed to the base and comprising a contact portion protruding into the docking space and a pin extending out of the base, the line-end connector comprising a second base and a plurality of second terminals, the second base being provided with a second buckle portion buckled with the first buckle portion; characterized in that: The first base further includes a second side wall, which is integrally connected to the same side of the base and the two side walls, the second side wall is provided with a first buckling portion, and the second base is provided with a second buckling portion that cooperates with the first buckling portion, wherein the first buckling portion is a pair of arm-like structures extending integrally from the base, which are respectively located on the inner sides of the corresponding first side walls and can be elastically deformed in a first direction, and the second side wall is provided with a longitudinal opening at the corresponding arm-like structure, and the arm-like structure is located within the range of the longitudinal opening when viewed from a direction perpendicular to the second side wall.

2. The electrical connector assembly according to claim 1, wherein: The first buckling portion is a buckling hole penetrating the inner and outer sides of the second side wall, and the second buckling portion is a buckling protrusion protruding from the surface of the second base.

3. The electrical connector assembly according to claim 1, wherein: The first base of the board-end connector is provided with a concave hole on its front end surface, and the second base of the line-end connector is provided with a convex column protruding forward on its front end surface, and the convex column and the concave hole can cooperate with each other.

4. A board-end connector, comprising a first base and a plurality of first terminals, wherein the first base comprises a base, two opposite first side walls and a first buckle portion, wherein the base and the two first side walls form a docking space, wherein the first terminal is fixed to the base and comprises a contact portion protruding into the docking space and a pin extending out of the base, wherein the contact portion is arranged between the two first side walls along a first direction, and wherein the first buckle portion has a buckling protrusion protruding into the docking space in the first direction; characterized in that: The first base further includes a second side wall, which is integrally connected to the same side of the base and the two first side walls. The second side wall is provided with a first locking portion. The first locking portion and the first locking portion are used to lock with a wire end connector inserted into the docking space to increase the pull-out force of the wire end connector. The first locking portion is a pair of arm-like structures extending integrally from the base, which are respectively located on the inner sides of the corresponding first side walls and can be elastically deformed in a first direction. The second side wall is provided with a longitudinal opening at the corresponding arm-like structure. When viewed from a direction perpendicular to the second side wall, the arm-like structure is located within the range of the longitudinal opening.

5. The board connector according to claim 4, characterized in that: The first buckling portion is a buckling hole that passes through the inner side surface of the second side wall.

6. The board connector according to claim 5, characterized in that: Viewed from a direction perpendicular to the second side wall, the retaining hole is located between the front end and the base of the contact portion.

7. The board connector according to claim 5, characterized in that: The second side wall is provided with two buckling holes, and the two buckling holes are arranged spaced apart from each other along the first direction.

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