CN201072828Y - Electrical connector - Google Patents

Abstract

An electric connector is provided, which is used for connecting chips and a circuit board, and comprises a main body provided with a plurality of terminal holes, a plurality of terminals accommodated in the terminal holes and a frame body provided on the main body. The frame is enclosed by a plurality of side edges, among which one side edge is broken to form an opening; one part of the chip can be accommodated in the opening or extend out of the boundary of the frame through the opening, so as to ensure that the electric connector can be connected with chips in different putting positions or with different dimensions and save cost.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector for electrically connecting chips.

【Background technique】

The electrical connector for testing chips disclosed in Chinese Utility Model Patent No. 200420079684.0 includes a main body, a receiving portion accommodated in the main body, and a substantially square frame disposed on the main body. The body part and the receiving part are respectively provided with a plurality of terminal holes, and a plurality of terminals are accommodated in the terminal holes.

The square frame forms a containing space, and the chip is contained in the containing space. Generally, an electrical connector is only suitable for a specific chip, so that the chip is just accommodated in the receiving space. In practical applications, the number of terminals in the electrical connector is often more than the number of pins on the chip, and different chips may have different terminal pins. When the terminals are in contact, the chip needs to move a corresponding amount of displacement. Since the chip is separated from the inner wall of the frame by a small distance, it is easy to cause interference between the chip and the frame when moving the chip.

In addition, the sizes of the chips produced by different manufacturers are different. When it is necessary to install a chip with a wider storage space into the corresponding electrical connector, it will also cause interference between the chip and the frame.

Based on the prior art described above, it is necessary to improve the existing electrical connectors.

【Content of utility model】

The technical problem to be solved by the utility model is to provide an electrical connector capable of connecting different chips.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: an electrical connector for connecting chips and circuit boards, which includes a body part provided with a plurality of terminal holes, and a plurality of terminals accommodated in the terminal holes And a frame body arranged on the body part, the frame body is surrounded by several sides, one of the sides is broken to form an opening.

Compared with the prior art, an opening is provided on one side of the frame of the electrical connector, so that the electrical connector can be connected with chips in different positions or sizes.

【Description of drawings】

Fig. 1 is a three-dimensional assembled view of the electrical connector of the present invention.

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

Fig. 3 is a perspective view of the frame of the electrical connector of the present invention.

Fig. 4 is a perspective view of a terminal of the electrical connector of the present invention.

Fig. 5 is a simple schematic diagram of the connection between the electrical connector of the present invention and a chip, wherein the chip is in a normal position and does not fit with the opening of the frame.

Fig. 6 is a simple schematic diagram of the connection between the electrical connector of the present invention and another chip, wherein a part of the chip is accommodated in the opening of the frame.

Fig. 7 is a schematic diagram of the connection between the electrical connector of the present invention and the third type of chip, wherein a part of the chip extends out of the opening of the frame.

【Detailed ways】

1 to 7, an electrical connector fixed on a circuit board (not shown) for connecting chips 8, 8', 8" mainly includes an upper chamber 10 and a lower chamber (not shown). The main body part 1 shown in the figure), the receiving part 2 accommodated in the upper chamber 10 of the main body part 1, the fixing part 3 accommodated in the lower chamber of the main body part 1, and the drivable receiving part provided on the main body part 1 2 frame body 5. Several conductive terminals 4 are accommodated in the main body part 1, the receiving part 2 and the fixing part 3 (only one is shown in FIG. 2 ).

The main body 1 is generally square, and the bottom 13 of the upper chamber 10 is provided with a plurality of terminal holes 14 . The bottom 13 is surrounded by side walls 15 , and a plurality of grooves 12 are arranged outside the side walls 15 . The four corners of the main body 1 are respectively provided with spring holes 16 on the upper side, and each of the lower parts are provided with positioning posts 11 . The spring holes 16 can accommodate springs 70 respectively. The electrical connector can be positioned on the circuit board through the positioning column 11 .

The upper chamber 10 of the main body 1 accommodates a substantially square receiving portion 2, and one opposite side of the receiving portion 2 is respectively provided with protrusions 20 near the four corners, and the upper edge of the protrusion 20 forms an arc. Noodles 200. The two opposite sides of the receiving portion 2 extend downwards with hooks 21 near the four protrusions 20 , and the receiving portion 2 can be fixed in the main body 1 through these hooks 21 . The middle of the side adjacent to the opposite two sides of the receiving part 2 is provided with a protruding post 22 outwardly, on which a spring 71 can be placed, so that the receiving part 2 can move horizontally in the upper chamber 10 of the main body part 1. Reset after moving. The receiving portion 2 is also provided with an upper terminal hole 23 corresponding to the terminal hole 14 of the main body 1 .

The lower chamber of the main body 1 is opposite to the upper chamber 10, and the lower chamber accommodates a substantially square fixed portion 3, which is fixed to the main body 1 with fixing devices such as screws (not shown). On it, a lower terminal hole 30 corresponding to the terminal hole 14 is provided.

Several terminals 4 are accommodated in the terminal hole 14 of the body part 1 , the upper terminal hole 23 of the receiving part 2 and the lower terminal hole 30 of the fixing part 3 . The terminals 4 respectively pass through the terminal hole 14 , the upper terminal hole 23 and the lower terminal hole 30 . Please also refer to FIG. 4 , the terminal 4 includes a pin 40 inserted into the circuit board, a deflection portion 41 that is deflected with the pin 40 , and two arms that extend upward from the deflection portion 41 and are arranged oppositely. arm 42 and movable arm 43. The fixed arm 42 extends vertically upwards, and the movable arm 43 bends and extends upwards. The projections of the tops of the two arms on the plane where the side 421 of the fixed arm 42 is located do not overlap or do not completely overlap, so that the tops of the two arms are offset from each other, and the tops of the two arms are respectively provided with clamping parts 420, 430, When the terminal 4 is accommodated in the body part 1 , the receiving part 2 and the fixing part 3 , the clamping parts 420 , 430 protrude upward from the receiving part 2 .

A frame body 5 is installed on the main body part 1 (please refer to Fig. 1 to Fig. 3, wherein the frame body in Fig. 3 is a three-dimensional view when the frame body in Fig. 1 and Fig. 2 is inverted), and the frame body 5 is surrounded by several sides 54 One side 54 is disconnected to form an opening 55 , so that the frame body 5 is roughly U-shaped, and forms a U-shaped accommodating space 53 with the main body 1 . There are several protruding plates 50 extending downward from the three sides 54 of the frame towards the main body 1 , and the ends of these protruding plates 50 extend inwardly with hooks 500 , and the protruding plates 50 can be connected with the corresponding grooves 12 on the main body 1 Cooperate to install the frame body 5 on the body part 1, a column body 51 extends downward from the frame body 5 toward the body part 1, which can be inserted into the spring hole 16 and cooperate with the spring 70, so that all The frame body 5 moves up and down. The opposite sides of the frame body 5 extend downwards with a drive portion 52 capable of driving the bump 20 of the receiving portion 2 , and the lower edge of the drive portion 52 is provided with an arc surface 200 that can interact with the bump 20 . Arc surface 520.

At the bottom of the electrical connector, a protection plate 6 for protecting the pins 40 of the terminals 4 can be provided under the fixing portion 3 . The buckling plate is provided with a buckling portion 600 for buckling the protection plate 6 on the main body 1 . The protection plate 6 is provided with a through hole 61 for inserting the pin 40 of the terminal 4, which can protect the pin 40 from being damaged by external force when the electrical connector is not in use.

Please refer to Fig. 1, when no external force is applied to the frame body 5, the electrical connector is in a closed state. The distance between the clamping parts 420 and 430 of the terminal 4 in the device is smaller than the diameter of the solder ball (not shown) of the chip 8, and all the springs are in the initial state.

When an external force is applied to the frame body 5, the frame body 5 moves downward toward the main body 1, the electrical connector is gradually opened, and all springs are compressed under force. The driving part 52 of the frame body 5 presses the protrusion 20 of the receiving part 2 so that the receiving part 2 abuts against the other end of the upper chamber 10 of the main body part 1 in the horizontal direction. At this time, the upper terminal hole 23 of the receiving part 2 and the The movable arm 43 of the terminal 4 interacts to move the movable arm 43 away from the fixed arm 42 , and the distance between the clamping parts 420 and 430 is slightly larger than the diameter of the solder ball of the chip 8 . In this state, the chip 8 can be installed in the accommodating space 53 of the electrical connector, and then the external force applied to the frame body 5 is removed. Due to the spring restoring force of the spring 70, the frame body 5 returns to the original position. Due to the spring restoring force of the spring 71 , the receiving part 2 moves toward the initial position, and the movable arm 43 of the terminal 4 moves toward the fixed arm 42 , and the clamping parts 420 and 430 can clamp the solder ball of the chip 8 . The chip can be disassembled when an external force is applied to the frame body 5 again.

Please refer to FIG. 5 , which shows the situation that the chip is installed in the electrical connector under normal conditions, and the chip does not fit with the opening 55 of the frame at this time. When connecting chips in different positions or connecting chips of different sizes due to different arrangement of pins, the chip needs to be shifted or extended in the direction of the opening 55. At this time, a part of the chip is accommodated in the frame as shown in Figure 6 In the opening of the chip, or a part of the chip extends out of the opening of the frame as shown in FIG. 7 .

The frame body of the electrical connector of the utility model is provided with an opening 55, and a part of the chip can be accommodated in the opening 55 or extend out of the boundary of the frame body through the opening 55, so as to prevent the chip from interfering with the frame body, so that the The electrical connector can be connected to chips in different positions or sizes, and the electrical connector does not need to be replaced when connecting different chips, which can save costs. The electric connector of the utility model installs the chip from top to bottom. When an opening is provided on one side of the frame body, the chip can also be inserted into the electric connector laterally through the opening.

The above description is a preferred embodiment of the present utility model, but of course it is not limited thereto. The opening of the frame body is not only opened towards the direction of the embodiment, but also can be opened towards other directions.

Claims (10)

1. electric connector, be used for connecting chip and circuit board, it comprises the body that is provided with the plurality of terminals hole, be placed in the plurality of terminals in the described terminal hole and be located at framework on the body, it is characterized in that: this framework is surrounded mutually by some sides, one of them side disconnects, and forms an opening.

2. electric connector as claimed in claim 1 is characterized in that: the part of described chip can extend to outside the border of this framework by this opening.

3. electric connector as claimed in claim 1 is characterized in that: described opening can match with chip, and the part of chip is contained in this opening.

4. electric connector as claimed in claim 3, the downward drawdown of the side of described framework has some prominent plates, the end of this prominent plate hook part that extends internally, described body is provided with the cell body that can match with described prominent plate.

5. electric connector as claimed in claim 4, it is characterized in that: described body is square, be respectively equipped with the spring eye that accommodates spring on its four angles, described framework is respectively equipped with cylinder with respect to each spring eye, and this cylinder is inserted in the spring eye and with spring and matches.

6. electric connector as claimed in claim 5, it is characterized in that: described body comprises upper chamber, a carrier that is square is contained in the described upper chamber, this carrier is provided with some upper terminals hole, carrier one relative both sides are provided with projection respectively near place, four angles, and the upper limb of this projection is provided with cambered surface.

7. electric connector as claimed in claim 6 is characterized in that: described framework is extended with the drive division that can drive described projection downwards, and the lower edge of drive division is provided with the cambered surface that can act on mutually with the cambered surface of projection.

8. electric connector as claimed in claim 7 is characterized in that: the centre of a side adjacent with described relative both sides is provided with projection, can overlap a spring on it, and described relative both sides are extended a trip respectively downwards near the projection place.

9. electric connector as claimed in claim 6 is characterized in that: described body also comprises the lower chambers relative with described upper chamber, and a fixed part that is used for fixing terminal is located therein, and this fixed part is provided with some lower terminal hole.

10. electric connector as claimed in claim 8, it is characterized in that: two arms that described terminal comprises pin, produces the deviation portion of deviation, extended upward and be oppositely arranged by deviation portion with pin, described two arms be respectively fixed arm and can with the interactional lever arm of carrier, fixed arm extends straight up, the lever arm bending extends upward, and setovers mutually and respectively be provided with clamping part in the top of two arms.

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