BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electrical connector, and particularly to an electrical connector used for a mobile phone or other electrical devices having different designs and configurations.
2. Description of the Prior Art
With the rapid development of the technology of wireless communication and advanced technology of electrics, electronic consuming products such as mobile phone, Personal Digital Assistant (PDA) etc., are designed to comply with miniaturization trend and multiple functions such as mounting a camera thereon to meet with requirements of human. As a result, socket connectors for accommodating the cameras therein are correspondingly demanding.
Usually, these electrical connectors used for accommodating and electrically connecting the camera with the consuming products each provides a plurality of terminals engaged with an insulative housing in a way of assembling. Please refer to a conventional electrical connector shown in FIG. 1, each terminal 2′ comprises a body portion 21′, a resilient portion 22′ bent and extending upwardly from an end of the body portion 21′, a contacting portion 23′ formed on distal free end of the resilient portion 22′ and disposed above body portion 21′, a locking portion 24′ perpendicularly located on the other end of the body portion 21′ and a connecting portion 25′ joined the body portion 21′ and the locking portion 24′. The locking portion 24′ engages with the insulative housing 10′ and assures the terminal 2′ be retained in the housing 10′ reliably. The contacting portion 23′ contacts with the bottom of a camera module 4′ by means of the upwardly elastic force. However, such terminals result in the high profile of the connector along the mating direction , and thus increasing the thickness of the consuming products.
- BRIEF SUMMARY OF THE INVENTION
Hence, an improved electrical connector is desired to overcome the disadvantages of the prior art.
Therefore, a main object of the present invention is to provide an electrical connector having low-profile.
To fulfill the above-mentioned object, an electrical connector according to the present invention comprises a shielding member defining a receiving space for receiving an electrical device therein, a terminal block positioned adjacent to the bottom of the shielding member for electrical interconnection with the electrical device, a plurality of terminals assembled to the terminal block. Each terminal comprises an end portion securely retained with the terminal block, a mating section adapted for electrically with the electrical device and a tail portion for mounting on a print circuit, and wherein each terminal further comprises a first branch and a second branch coplanar with the end portion and extending from the end portion towards the same direction parallel to a bottom surface of the terminal block, said tail portion is located on the first branch, said mating section is formed on the second branch.
BRIEF DESCRIPTION OF THE DRAWINGS
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
The foregoing summary, as well as the following detailed description of the embodiments of the present invention, will be better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, there are shown in the drawings embodiments which are presently preferred. As should be understood, however, the invention is not limited to the precise arrangements and instrumentalities shown. In the drawings:
FIG. 1 is an exploded view of a conventional electrical connector;
FIG. 2 is an assembled perspective view of an electrical connector with an electrical device according to the present invention;
FIG. 3 is a view similar to FIG. 2, but viewed from another aspect;
FIG. 4 is an exploded, perspective view of FIG. 2;
FIG. 5 is a view similar to FIG. 4, but viewed from another aspect;
FIG. 6 is a perspective view of a terminal block assembled with a plurality of terminals; and
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
FIG. 7 is a view similar to FIG. 6, but viewed from another aspect.
Reference will now be made in detail to the preferred embodiment of the present invention.
Referring to FIGS. 2-7, an electrical connector 100 according to the present invention is adapted for receiving an electrical device which is a camera module 4 in the present embodiment. The electrical connector 100 comprises a shielding member 3 accommodating the camera module 4, a plurality of terminals 2 and an insert-molding terminal block 1. The terminal block 1 is positioned adjacent to the bottom of the shielding member 3.
The terminal block 1 dimensioned to receive the plurality of terminals 2 therein includes a rectangular main body 11 and a pair of side portions 13 respectively disposed at opposite ends of the main body 11. A plurality of recessed passageways 12 are arranged into two rows along the longitudinal direction of the bottom surface of the main body 11 and each passageway 12 is recessed upwardly from the bottom surface of the main body 11 with opening toward front or rear edges of the main body 11. Each passageway 12 forms a heave 15 in the central section thereof and each heave 15 is of irregular shape. Each side portion 13 comprises a pair of projections 14 spaced arranged on outer edge thereof along a lateral direction of main body 11 for coupling with the shielding member 3.
Each terminal 2 includes an end portion 21, a first branch 211 and a second branch 212 both being coplanar with the end portion 21 and bifurcating from the end portion 21 towards the same direction parallel to the bottom surface of the terminal block 1. The end portion 21, the first branch 211 and the second branch 212 are stamped from a strip. The first branch 211 has a tail portion 2110 extending along a direction away from the end portion 21, and the second branch 212 has a resilient portion 2120 extending upwardly therefrom and along a direction away from the end portion 21. The resilient portion 2120 has a curved mating section 2121 at a free end thereof. With the pre-pressure, the mating section 2121 can still provide a larger resisting force even if at a lower height when the mating section 2121 is pressed downwardly, therefore, the mating section 2121 can reliably and electrically connect with the camera module 4. The end portion 21, the first branch 211 and the second branch 212 together form a retaining hole 210 for receiving the heave 15 of the passageway 12. A recess 24 is dispose on the bottom side of the end portion 21 to strength the engagement with the terminal block 1 after the terminal 2 insert-molded with the terminal block 1. The terminals 2 of the electrical connector 100 according to present invention are reversely disposed at two rows, and thus, a certain distance L is provided to make sure that the terminals 2 can reliably engage with the terminal block 1 after insert-molding.
The shielding member 3 is firstly stamped from a metal sheet and then bent to form a rectangular configuration shown in the present invention. The shielding member 3 includes a first wall, a second wall, a third wall, a fourth wall 31, 32, 33, 34 which connect with one another in turn to form a receiving space 30. A swallow-tail shaped jointing line 300 is formed near the jointing portion of the third wall 33 and the fourth wall 34. The first wall 31 comprises a U-shape cutout 310 defined in a central section thereof and recessed downwardly from a up edge thereof, a U-shaped connecting portion 311 protruding outwardly and connecting to two opposite sides of the cutout 310, a pair of resilient tabs 313 symmetrically located at two opposite sides of the cutout 310 respectively and bent inwardly into the receiving space 30, a pair of apertures 312 defined in a low portion of the first wall 31 and a guide portion 314 curved outwardly from a top edge of the first wall 31. The cutout 310 includes a bottom edge 370 and the width of the top portion of the cutout 310 is slightly lager than that of the bottom edge 370. The U-shaped connecting portion 311 is stamped from the first wall 31 and connecting with two opposite sides of the cutout 310. The U-shaped connecting portion 311 can overcome the limitation of the low intension caused by the cutout 310 located in the first wall 31, and furthermore the width of the first wall 31 will not be increased since the connecting portion 311 is stamped from the first wall 31. The resilient tab 313 comprises a jointing portion 3130 connecting to the guide portion 314, a main portion 3131 connecting to the jointing portion 3130 and bent toward the third wall 33 of the shielding member 3 and a sustaining portion 3132 resisting against the camera module 4. The second and the fourth walls 32, 34 each comprises a resilient tab 313 located on the central section thereof, two clasping arms 320 symmetrically located at two sides of the resilient tab 313 and three guide portions 314 respectively connecting with the resilient tab 313 and the clasping arm 320. The third wall 33 comprises a pair of resilient tabs 313, a pair of guide portions 314 connecting to the resilient tab 313 and a pair of apertures 312 located in the low portion of the third wall 33. The resilient tabs 313 of the four walls 31, 32, 33, 34 can symmetrically fix the camera module 4 and establish a grounding connection for the electrical connector 100. The clasping arms 320 of walls 32, 34 can reliably lock the camera module 4 within the shielding member 3. The guiding portion 314 can easily guide the camera module 4 to be assembled into the shielding member 3.
The camera module 4, received in the receiving space 30 of the shielding member 3, comprises a rectangular body portion 41, a columnar portion 43 situated on the top of the body portion 41 and a bottom portion 42 located beneath the body portion 41. The body portion 41 includes a front wall 410, two side walls 412, 413 adjoined to the front wall 410, and a back wall (not labeled) opposite to the front wall 410. The side walls 412, 413 each defines a ladder-shaped clasping notch 44 for locking with the clasping tab 320. Referring to FIG. 4, the front wall 410 of the body portion 41 provides an approximately longitudinal rib 414 which may insert into the cutout 310. When the camera module 4 is shocked, the rib 414 abuts against the bottom edge 370 and is received in the U-shape region of the connecting portion 311, so the camera module 4 will not move downwardly. A conductive layer enclosed around the columnar portion 43 can establish an electrical connection with the resilient tabs 313 of the shielding member 3. The bottom surface of the bottom portion 42 has a plurality of conductive pads 421 contacting with the mating sections 2121 of the terminals 2.
In assembly, referring to FIGS. 2-7, firstly, the terminals 2 are arranged in two rows in a mold, and then the melting plastic material flows between the space of the two rows of the terminals 2. The melting plastic material flows into the retaining holes 210 to from the heaves 15. The recesses 24 of the terminals 2 are also filled with the melting plastic material to strength the retaining force between the terminals 2 and terminal block 1. After cool, the terminal block 1 with a plurality of terminals 2 assembled therein is formed. The end portions 21 of the terminals 2 are received in the passageways 12 of the terminal block 1. The mating sections 2121 of the terminals 2 extend upwardly from the main body 11 and the end portions 21 of the terminals 2 are beneath the main body 11. Particularly referring to FIG. 7, the end portions 21 and the first and second branches 211,212 are coplanar with the bottom surface of the main body 11, while the 2110 below the bottom surface of the main body 11 for soldering. Then, the terminal block 1 with the terminals 2 is assembled to the shielding member 3 with the projections 14 of the side portions 13 of the terminal block 1 received in the apertures 312. The camera module 4 is inserted into the receiving space 30 of the shielding member 3 along a top-to-bottom direction. In the meanwhile, the rib 414 of the camera module 4 is pressed into the cutout 310 of the shielding member 3 due to the pressure caused by the resilient tabs 313 and the clasping arms 320. In the process of moving downwardly, the rib 414 engages with the cutout 310. The resilient tabs 313 press against the outer periphery of the columnar portion 42, and the clasping arms 320 engage with the clasping notches 44. Thus, the camera module 4 is accommodated and supported by the shielding member 3, and can not be moved by shock. After the camera module 4 is inserted, the conductive pads 421 of the bottom portion 43 of the camera module 4 electrically connect with the contacting portions 21 of the terminals 2 placed in the terminal block 1.
It is to be understood, however, that even though numerous, characteristics and advantages of the present invention have been set fourth in the foregoing description, together with details of the structure and function of the invention, the disclosed is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.