TWI458179B - Electrical connector - Google Patents

Description

Electrical connector

The invention relates to an electrical connector.

Board-to-board connectors are widely used in current electrical systems where electrical components, such as central processing units or other components, are mounted on a printed circuit board and connected by wires on the board, and two printed The board is connected by our familiar board-to-board electrical connectors. At present, a conventional or typical board-to-board connector such as the inter-engaged male and female connectors disclosed in U.S. Patent No. 5,639,248, the plurality of conductive terminals are arranged along the longitudinal direction of the connector, and each of the conductive terminals is along the male The mating direction of the female connector extends. As a connector improvement, a male and female electrical connector has also appeared, such as the connector disclosed in U.S. Patent No. 5,161,985, which has the same male-female structure as the connector. The important advantage is that as long as a mold is developed, the male and female connectors can be produced, which is more suitable for mass production. However, the above two types of connectors have a certain height.

In addition, U.S. Patent No. 5,575,674 also discloses a male and female electrical connector in which the conductive terminals are of a horizontally extending configuration, and the mating direction of the terminals is parallel to the abutting faces. However, we can also find that the cooperation between the two connectors has no fixing force, and the nut and the bolt need to be used for the cooperation. The electrical connector is not suitable for the current miniaturization and convenient insertion and removal of the electrical connector.

In view of the above, it is an object of the present invention to provide an electrical connector that is low in configuration and that is easily pluggable.

The object of the present invention is achieved by the following technical solutions: an electrical connector includes a base, a first terminal and a second terminal fixed to the base, the base has an abutting surface and a mounting surface; the first terminal is a metal piece. The utility model comprises a fixing portion and a resilient arm extending from the fixing portion. The elastic arm is provided with a contact point, the contact point forms a plugging direction perpendicular to the mating surface; the second terminal is a columnar body, which comprises a perpendicular to the mating surface. Contact part.

Compared with the prior art, the vertically aligned first and second terminals of the present invention not only make the electrical connector structure low, but also facilitate insertion and removal.

100a, 100b‧‧‧ electrical connectors

2‧‧‧First terminal

1‧‧‧Insulated base

21‧‧‧ Holding Department

101‧‧‧ docking

211‧‧‧through hole

102‧‧‧Installation surface

212‧‧‧Spurs

11‧‧‧ housing trough

22‧‧‧Flexible arm

110‧‧‧ bottom

221‧‧‧Contact points

111a‧‧‧ Sidewall

23‧‧‧Weld Department

112‧‧‧ gap

3‧‧‧second terminal

113‧‧‧ accommodating holes

31‧‧‧ vertical section

12‧‧‧ Positioning column

311‧‧‧Contacts

121‧‧‧Fixed holes

312‧‧ ‧ Guidance Department

32‧‧‧Weld Department

The first figure is a perspective view of the two electrical connectors of the present invention; the second figure is a perspective view of the two electrical connectors of the first figure; the third figure is an exploded view of the two electrical connectors of the first figure; The figure is a cross-sectional view taken along line IV-IV in the first figure.

Referring to the first figure, the present invention introduces a male and female electrical connector 100a, 100b. The two electrical connectors are respectively mounted on a circuit board (not shown), and the electrical properties of the two circuit boards are completed. connection. Since the two electrical connectors are identical in structure, the same reference numerals are used and will not be separately described when the components are specifically described.

Referring to the second and third figures, the electrical connector includes a rectangular insulating base 1 in the form of a plate, the upper surface of which is the abutting surface 101, and the lower surface is the mounting surface 102. Forming a shallow plurality of rectangular receiving grooves 11 from the butt facing downwards, the receiving grooves 11 are arranged in a first direction (ie, the longitudinal direction of the base), and each of the individual receiving grooves 11 is surrounded by four side walls. Formed as a vertically long rectangular shape, the extending direction is a second direction perpendicular to the first direction, and the bottom surface 110 of the receiving groove is perpendicularly protruded from the side wall 111a of the second direction toward the abutting surface 101 side. 12, the positioning post 12 has a smaller size than the receiving slot, and neither side of the positioning post is in contact with the four sidewalls of the receiving slot. A fixing hole 121 penetrating the abutting surface 101 and the mounting surface 102 is provided in the middle of the positioning post 12 . The side wall 111a is provided with a notch 112 extending through the abutting surface and the mounting surface. The bottom surface 110 is provided with a receiving hole 113 penetrating the mounting surface on the other side of the opposite positioning post. The upper surface of the positioning post is located on the same plane as the mating surface 101 (the fourth figure is clearly visible). Of course, the positioning post can also be shorter, so that the positioning post does not protrude from the mating surface 101.

The first terminal 2 is formed by stamping and bending a metal sheet, and includes a frame-shaped holding portion 21, a through hole 211 is formed in the middle of the holding portion 21, and a spur 212 is disposed on the outer side. A pair of elastic arms 22 extend from one side of the holding portion, and the ends of the two elastic arms are provided with facing curved protrusions to form contact points 221. The opposite side of the retaining portion extends a welded portion 23 that is deflected downwardly. The first terminal 2 is vertically mounted in the receiving slot 11 from the mating surface 101. The through hole 211 of the retaining portion is sleeved on the positioning post 12, and the ribs 212 on both sides of the retaining portion are interference-fixed on the two sidewalls of the receiving slot. The holding portion 21 of the first terminal and the elastic arm 22 are in close contact with the bottom surface 110 of the receiving groove, and the two contact points 221 are located on the upper side of the receiving hole 113. The welded portion 23 extends through the notch 112 and extends out of the outer side surface of the side wall of the base. A plugging direction of a vertical abutting surface is formed between the two contact points.

The second terminal 3 is a rectangular columnar body including a level of the welded portion 32 and a vertical portion 31 perpendicular thereto. The second terminal is inserted from the mounting surface, and the welded portion 32 is located in the fixing groove 13 communicating with the fixing hole 121 on the mounting surface, and the bottom surface of the welded portion can appropriately protrude the mounting surface for welding. The vertical portion 31 is protruded through the fixing hole 121 to protrude from the upper surface of the fixing hole 121, and the portion of the vertical portion 31 protruding from the fixing hole forms a contact portion 311, and the contact portion The abutting surface is protruded, and the free end of the contact portion is a tapered guiding portion 312.

In combination with the fourth figure, the two identical connectors can complete the male-female pairing, and the contact portion 311 of the second terminal passes between the two elastic arms 22 of the first terminal and contacts the contact point 221; meanwhile, the contact portion 311 The front end is inserted into the receiving hole 113. The same electrical connector of the present invention can complete the mutual matching by itself, saving the development of the mold. The two mating connectors have a holding force in the docking direction, and the connector itself has an insertion force, which facilitates the joint between the connectors, and moreover, the latch structure between the two connectors as in the prior art can be omitted. .

In summary, this creation has indeed met the requirements of the invention patent, and filed a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or changes in accordance with the spirit of the present invention. It should be covered by the following patent application.

100a, 100b‧‧‧ electrical connectors

21‧‧‧ Holding Department

1‧‧‧Insulated base

22‧‧‧Flexible arm

101‧‧‧ docking

221‧‧‧Contact points

102‧‧‧Installation surface

3‧‧‧second terminal

2‧‧‧First terminal

311‧‧‧Contacts

Claims (8)

An electrical connector includes: a base having an abutting surface and a mounting surface; the first terminal is a metal piece, and includes a retaining portion and a resilient arm extending from the retaining portion, the resilient arm is provided with a contact point, the contact The insertion direction of the vertical abutting surface is: the second terminal is a metal columnar body, and includes a contact portion perpendicular to the abutting surface; wherein the base is provided with a receiving groove recessed from the abutting surface, and the first terminal is located at the receiving end On the bottom surface of the slot, the second terminal passes through the bottom surface of the receiving slot and the contact portion protrudes from the mating surface. The holding portion of the first terminal is fixed to one end of the receiving slot, and the contact point extends to the other end of the receiving slot. The two terminals are adjacent to the holding portion of the first terminal. The electrical connector of claim 1, wherein the bottom surface of the receiving groove is provided with a receiving hole recessed toward the mounting surface, the receiving hole corresponding to the contact portion of the second terminal. The electrical connector of claim 2, wherein a through hole is formed in the middle of the holding portion, and the receiving groove is provided with a positioning post protruding from the bottom surface at the corresponding position, and the through hole is sleeved on the positioning column; the positioning column A fixing hole is arranged in the middle, the second terminal is fixed to the fixing hole and the contact portion protrudes from the fixing hole. The electrical connector of claim 3, wherein the positioning post does not protrude from the abutting surface. The electrical connector of claim 3, wherein the contact point of the first terminal is aligned with the receiving hole. The electrical connector of claim 3, wherein the contact portion of the second terminal is in line with the contact point of the first terminal. The electrical connector of claim 1, wherein the welding portion of the first terminal passes through a notch provided in a side wall of the base and extends out of the outer side of the base; the second terminal is provided welding The welded portion is housed in a receiving groove in which the mounting surface is recessed. The electrical connector of claim 1, wherein the electrical connector is provided with a plurality of receiving slots, the receiving slots are arranged in a first direction and each receiving slot extends in a second direction perpendicular to the first direction The contact point of the plurality of first terminals is located at one end of the receiving slot in the second direction, and the contact portion of the plurality of second terminals is located at the other end of the receiving slot in the second direction.