CN201355704Y - electrical connector - Google Patents

Abstract

An electric connector for electrical connection of a chip module to a printed circuit board comprises an insulation body accommodating a plurality of conductive terminals, a cover body pivotally connected to one end of the insulation body and four locating pieces. The insulation body is provided with two opposite side walls and an accommodating cavity between the two side walls, and the chip module is accommodated in the accommodating cavity. Two accommodating grooves are formed on each side wall respectively and the locating pieces are accommodated in the accommodating groove. Each locating piece is provided with elastic butting arms extending into the accommodating cavity, so as to locate correctly the chip module.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector for electrically connecting a chip module to a printed circuit board.

【Background technique】

Existing connectors for electrically connecting chip modules to printed circuit boards generally include a substrate fixed on the circuit board and a number of conductive terminals accommodated in the substrate, wherein the substrate is provided with a bearing area for carrying the chip module, and the bearing area includes A receiving space for accommodating the chip module is formed by a plurality of inner walls and a bottom wall. Each inner wall of the receiving space is respectively provided with protrusions protruding from the receiving space of the carrying area to position the chip module.

However, when the above-mentioned electrical connector is in use, because the edge of the chip module is relatively sharp, when the chip module is assembled into the accommodation space of the insulating body from top to bottom, the bumps in the accommodation space will often be scraped, resulting in chipping. In severe cases, the bumps will be crushed, so that the chip module cannot be positioned accurately, and the connection performance of the electrical connector will be affected.

In view of the above situation, it is indeed necessary to provide an improved electrical connector to solve the shortcomings in the prior art solutions.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector capable of accurately positioning a chip module.

The utility model is realized through the following technical solutions: an electrical connector for electrically connecting a chip module to a printed circuit board, which includes an insulating body, a plurality of conductive connectors installed in the insulating body and capable of contacting the chip module. terminal and cover. Wherein, the insulating body includes a plurality of side walls and a receiving cavity for accommodating the chip module surrounded by the side walls. The cover is pivotally connected to one end of the insulating body and can be switched between open and closed positions. The electrical connector further includes a plurality of locating pieces, the locating pieces are respectively fixed on two opposite side walls of the above-mentioned insulating body, and each locating piece is provided with an elastic abutment arm extending into the receiving cavity of the above-mentioned insulating body and used to abut the chip module , to locate the chip module.

Compared with the prior art, the utility model has the following beneficial effects: it is easier to control the distance between the positioning parts by independently setting the positioning parts on the side wall of the insulating body, and it can prevent the gap between the chip module and the positioning parts. Debris is generated due to wear and tear, thereby ensuring the accurate positioning of the electrical connector on the chip module.

【Description of drawings】

FIG. 1 is a three-dimensional assembled view of the electrical connector of the present invention after it is opened.

Fig. 2 is a three-dimensional exploded view of the electrical connector of the present invention.

FIG. 3 is a three-dimensional assembled view of the electrical connector shown in FIG. 2 .

FIG. 4 is a schematic rear view of the electrical connector shown in FIG. 3 .

【Detailed ways】

Please refer to FIG. 1 and FIG. 2 , the present invention is an electrical connector 100 for electrically connecting a chip module to a printed circuit board (not shown). The chip module in this embodiment is specifically a photoelectric conversion module (not shown), and its main function is to convert optical signals and electrical signals. The electrical connector 100 includes an insulating body 1 , a plurality of conductive terminals 2 accommodated in the insulating body 1 , a cover 3 pivotally connected to one end of the insulating body 1 , and four positioning members 4 fixed on the insulating body 1 . The photoelectric conversion module (not shown) is accommodated in the insulating body 1 , and a plurality of pads are provided on the bottom surface thereof to be connected with the conductive terminals. The cover body 3 can be switched between an open position and a closed position. When it is in the closed position, the photoelectric conversion module (not shown) can be compressed and fixed in the insulating body 1 .

The insulating body 1 is flat and roughly rectangular parallelepiped, and includes a carrying portion 12 for carrying a photoelectric conversion module (not shown) and a pivot end 11 located at one end of the carrying portion 12 . The pivoting end 11 is used to pivotally connect the cover body 3 , and two ends of the pivoting end 11 are respectively recessed with slide grooves 13 . The carrying portion 12 includes two opposite side walls 14 and a receiving cavity 15 between the two side walls 14 for receiving a photoelectric conversion module (not shown). The accommodating cavity 15 is opened at an end opposite to the pivot end 11 , and the accommodating cavity 15 includes a bottom surface 151 and two inner surfaces 152 . The carrying portion 12 is provided with two rows of through terminal slots from the bottom surface 151 : a front row of terminal slots 153 and a rear row of terminal slots 154 , and the terminal slots 153 and 154 are collectively arranged at one end and arranged in a staggered manner. The two side walls 14 are respectively provided with two receiving grooves 141 extending vertically at intervals. The receiving grooves 141 run through the side walls 14, and each receiving groove 141 is also provided with a groove 142 and a snap-fit plate extending horizontally along the bottom of the groove 142. Groove 143.

The conductive terminals 2 are divided into a plurality of front row terminals 21 and a plurality of rear row terminals 22, the front row terminals 21 and the rear row terminals 22 are arranged approximately opposite to each other and are respectively accommodated in the front row terminal grooves 153 and the rear row terminal grooves 154 of the insulating body 1 , for electrically connecting the photoelectric conversion module (not shown) and the printed circuit board (not shown).

The cover body 3 is stamped from a metal plate, is pivotally connected to the pivot end 11 of the insulating body 1, and can be switched between an open position and a closed position. The cover body 3 includes a flat body portion 31 and side plates 32 extending downward from two sides of the body portion 31 . The middle part of the main body 31 corresponds to the conductive terminal 2 in the insulating body 1. A pressing portion 33 is recessed downward to form a pressing portion 33. After the cover 3 is closed, the pressing portion 33 can be pressed against the upper surface of the photoelectric conversion module (not shown). . The end of each side plate 32 extends inwardly with a cylindrical pivot shaft 34. The pivot shaft 34 can be accommodated in the chute 13 of the insulating body 1 and can slide horizontally in the chute 13, so that the cover 3 can be closed after closing. Move horizontally between the first position and the second position. Each side panel 32 is further provided with a pair of buckle pieces 321 . The buckle pieces 321 include a connecting portion 3210 extending vertically downward from the side wall 32 and a locking portion 3211 bent inward from the connecting portion 3210 . The buckle part 3211 is substantially perpendicular to the connecting part 3210 , and a tongue-shaped guide part 3212 inclined downward is provided at the end thereof, so as to guide the buckle part 3211 to be smoothly locked in the engaging groove 143 of the insulating body 1 .

Focusing on FIG. 1 and FIG. 2 , the four positioning members 4 are respectively accommodated in the four receiving grooves 141 of the insulating body 1 , thereby being fixed on two opposite side walls 14 of the insulating body 1 . In this embodiment, the positioning member 4 is an elastic sheet structure, and the material is metal. The positioning member 4 includes a vertical sheet-shaped holding portion 41 accommodated in the receiving groove 141 of the insulating body 1, a welding portion 42 extending horizontally outward from the bottom end of the holding portion 41, and a welding portion 42 extending from the top end of the holding portion 41 toward the insulating body 1. The arc-shaped elastic contact arm 43 is formed by bending and extending in the receiving cavity 15 . The soldering portion 42 is arranged substantially horizontally and can be soldered to the printed circuit board, so as to stably fix the electrical connector 100 to the printed circuit board (not shown). The elastic abutting arm 43 extends into the receiving cavity 15 of the insulating body 1 and exceeds the inner surface 152 of the receiving cavity 15. When the photoelectric conversion module (not shown) is assembled into the receiving cavity 15, the elastic abutting arm 43 will abut against Press on the outer wall of the photoelectric conversion module (not shown).

Please refer to Fig. 1, Fig. 3 and Fig. 4 together. When assembling this electrical connector, first assemble the conductive terminals 2 into the terminal grooves 153 and 154 of the insulating body 1 from below, and then put the pivot shaft of the cover 3 34 is assembled into the sliding groove 13 of the insulating body 1, so that the entire electrical connector 100 is assembled into one body. At this time, the cover body 3 can be changed between the open position and the closed position relative to the insulating body 1. When the cover body 3 is in the open state, the photoelectric conversion module (not shown) can be installed in the receiving cavity 15 of the insulating body 1 from top to bottom. At this time, the elastic contact arm 43 of the positioning member 4 will press against the outer wall of the photoelectric conversion module (not shown), so as to accurately and stably position the photoelectric conversion module (not shown) in the housing cavity of the insulating body 1 within 15. When the cover 3 is naturally fastened to the insulating body 1 and reaches the closed position, its buckle 321 will be accommodated in the groove 142 of the insulating body 1, and then the cover 3 will be pushed to slide along the insulating body 1, along with the pivot shaft 34 Sliding horizontally in the slide groove 13 of the insulating body 1, the buckle 321 is guided by its guide part 3212 to slide and snap into the engaging groove 143, thereby placing the cover 3 and the insulating body 1 in a locked state . When opening the cover body 3 , slide the cover body 3 in the opposite direction, release the buckle between the buckle piece 321 and the engaging groove 143 , and then rotate and open it.

In the above-mentioned preferred embodiment of the present utility model, two metal positioning parts 4 are respectively arranged on the two opposite side walls 14 of the insulating body 1, and the distance between the relative positioning parts 4 is easier to control, and the elastic contact arm 43 is The arc-shaped sheet structure has a certain degree of elasticity. After the photoelectric conversion module (not shown) is accommodated in the accommodation cavity 15 of the insulating body 1 , its outer wall will compress the elastic abutment arm 43 of the positioning member 4 , so that the positioning can be stable and accurate. The welding portion 42 of the positioning member 4 can be welded to a printed circuit board (not shown), so as to stably fix the entire electrical connector 100 to the printed circuit board (not shown).

The above is only one embodiment of the utility model, not all or the only implementation. Any equivalent change to the technical solution of the utility model adopted by those of ordinary skill in the art by reading the specification of the utility model shall be considered as the present invention. covered by utility model claims.

Claims (10)

1. electric connector, be used to electrically connect chip module to printed circuit board (PCB), it comprises insulating body, be installed in the insulating body and can with the contacted plurality of conductive terminals of chip module, lid and some keepers, wherein, insulating body comprises some sidewalls and the host cavity of accommodating chip module that is made around by sidewall, lid is articulated in insulating body one end and can gives and opening and the make position conversion, keeper is fixedly arranged on the two opposite side walls of above-mentioned insulating body respectively, it is characterized in that: described each keeper is provided with in the host cavity that extends to above-mentioned insulating body and the elasticity abutment arms of chip module that is used to conflict, with the positioning chip module.

2. electric connector as claimed in claim 1, it is characterized in that: the two opposite side walls of described insulating body offers accepting groove respectively, described keeper comprises that further the holding parts that is contained in the described accepting groove reaches the weld part that extends from the terminal outwards bending of holding parts, and the elasticity abutment arms of described keeper forms towards the host cavity inner bending extension of described insulating body from the top of holding parts.

3. electric connector as claimed in claim 2 is characterized in that: described keeper is the elastic strip body structure.

4. as each described electric connector in the claim 1 to 3, it is characterized in that: described keeper is a metal material.

5. electric connector as claimed in claim 4 is characterized in that: offer chute on the lateral surface of the two opposite side walls of described insulating body respectively.

6. electric connector as claimed in claim 5, it is characterized in that: described lid comprises the two opposite sides plate, be respectively equipped with the drive-connecting shaft that can be contained in the described chute on the described biside plate, drive-connecting shaft can horizontal slip in chute, thereby can move horizontally between the primary importance and the second place after making the lid closure.

7. electric connector as claimed in claim 6 is characterized in that: the slot that further is provided with groove on the two opposite side walls of described insulating body and extends along the bottom of groove, the corresponding cramp that cooperates with groove and slot that is provided with of the biside plate of described lid.

8. electric connector as claimed in claim 7 is characterized in that: described cramp comprises the clamping part in order to the buckle slot, and the end of clamping part is provided with the ligule guidance part of downward-sloping extension.

9. electric connector as claimed in claim 8 is characterized in that: an end opening of the host cavity of described insulating body.

10. electric connector as claimed in claim 9 is characterized in that: the conducting terminal place in the corresponding insulating body in described lid middle part is concaved with pressure section downwards, and after the lid closure, pressure section can press on the upper surface of chip module.

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