CN201142438Y - card edge connector - Google Patents

Abstract

The utility model discloses a card edge connector, which can be electrically connected with a memory module, and comprises an insulating body, a sliding metal piece assembled on the insulating body, a plurality of first terminals, second terminals and The movable part is assembled on the insulating body and covers the first terminal. The first terminal is provided with an elastic arm extending into the insulating body, and the front end of the elastic arm is provided with a contact portion in contact with the memory module. The movable part can press down the elastic arm of the first terminal to move the contact portion downward, which can The contact part holds the memory module when the memory module is inserted, and in addition, when the memory module is pulled out, the holding force can be canceled to achieve zero insertion force.

Description

card edge connector

【Technical field】

The utility model relates to a card edge connector, in particular to a card edge connector used for inserting memory modules.

【Background technique】

A card edge connector used to realize the electrical connection between the memory module and the circuit board. China Taiwan Patent No. 312088 discloses a card edge connector. The card edge connector includes an insulating body, upper and lower terminals accommodated in the insulating body, and a sliding metal piece sleeved on the insulating body. The insulating body is provided with a lengthwise base and two parallel guide arms extending horizontally from both ends of the base to the opposite direction of the memory module insertion direction, the base is provided with slots, and the upper and lower terminals are respectively provided with protruding inserts. The contact part arranged oppositely in the groove.

The guide arms are respectively provided with guide grooves, and when the memory module is inserted into the slot of the card edge connector along the guide grooves, the upper and lower surfaces of the memory module's docking part interfere with the contact parts of the upper and lower terminals respectively and achieve electrical contact. In addition, when the memory module is inserted, the abutting portion of the memory module keeps interference fit with the contact portions of the upper and lower conductive terminals, and holds the memory module in the slot. However, this structure is not conducive to the insertion and removal of the memory module, that is, the assembly efficiency is greatly reduced, and the conductive terminals are easily damaged when the memory module is inserted and removed.

Therefore, in view of the above problems, it is necessary to propose a new card edge connector to solve the above problems.

【Content of utility model】

The technical problem to be solved by the utility model is to provide a card edge connector which is easy to plug and unplug.

In order to solve the above problems, the utility model adopts the following technical solution: a card edge connector, which is used for inserting memory modules, the card edge connector includes: an insulating body and a number of first terminals held in the insulating body, the The insulating body is provided with a longitudinally elongated base, the base has a front end surface, a slot is recessed on the front end face and a number of receiving grooves communicated with the slot, and the first terminal is provided with a holding portion fixed on the insulating body , an elastic arm extending from the holding part along the receiving groove and a welding part extending from the holding part out of the insulating body, the elastic arm is provided with a contact part, and the card edge connector also includes a movable part assembled on the insulating body, the The movable part moves back and forth between the first and second positions. When the movable part is at the first position, the memory module can be freely inserted into the slot. When the movable part is at the second position, the movable part presses against the first terminal The elastic arm of the first terminal moves the contact portion of the first terminal into the slot.

Compared with the prior art, the card edge connector of the present invention has the following beneficial effects: a movable part assembled on the insulating body and moving at the first and second positions is provided, and the memory module can be freely inserted in the first position In the slot, when in the second position, the movable part can press the elastic arm downwards so that the contact portion of the first terminal protrudes into the slot. Compared with the existing card edge connector, the utility model card edge connector can It is easy to plug and unplug the memory module and realize zero insertion force insertion.

【Description of drawings】

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

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

Fig. 3 is a three-dimensional exploded view of another angle of the card edge connector of the present invention.

Fig. 4 is a sectional view along section A-A of Fig. 1 when the movable member is in the first position.

Fig. 5 is a sectional view along section A-A of Fig. 1 when the movable member is in the second position.

【Detailed ways】

The utility model provides a card edge connector 1, which is used for electrical connection between a memory module (not shown) and a printed circuit board (not shown). The card edge connector 1 comprises: an insulating body 2, a sliding metal part 3 assembled on the insulating body 2 and capable of sliding on the insulating body 2, a plurality of first terminals 4 held on the insulating body 2 (the first terminals are The upper conductive terminal) and the second terminal 5 (the second terminal is the lower conductive terminal) and the movable part 6 assembled in the insulating body 2, the movable part 6 can be in the same direction as the memory module insertion and removal direction. The location moves.

Please refer to FIG. 2 and FIG. 3, assuming that the memory module is inserted on the front side, the above-mentioned insulating body 2 is provided with a longitudinal base 21 and a pair of guide arms 22 located at both ends of the base 21 and extending forward. The base 21 is provided with a front end surface 211, a rear end surface 212 and a top surface 213. The front end surface 211 is concavely provided with a longitudinally elongated slot 214 for inserting a memory module, and first and second slots communicating with the slot 214. Storage tanks 2111, 2113. The top surface 213 is recessed downward to provide a storage space 2112 for carrying the movable part 6 to facilitate the assembly of the movable part 6, and can reduce the height of the electrical connector 1. There is a longitudinal wall protruding upward from the front end of the storage space 2112. Section 2131. The rear end surface 212 defines a third receiving groove 2121 corresponding to the second receiving groove 2113 for receiving the first terminal 4 , and the third receiving groove 2121 extends downward and penetrates the bottom surface of the base portion 21 .

The pair of guide arms 22 are arranged relatively parallel, and a trumpet-shaped opening 221 is provided on the inside of the front end to facilitate the insertion of the memory module. A horizontal guide groove 222 is provided extending backward from the opening 221 along the inner edge of the guide arm 22 . The guide groove 222 communicates with the slot 214 and has the same width as the slot 214. The outer edge of the guide arm 22 protrudes a stopper 223 to prevent the sliding metal part 3 from self-guiding. The front end of the guide arm 22 breaks away from the insulating body 2, and a guide part 224 for attaching the sliding metal part 6 is provided backward from the stopper 223. The guide part 224 is lower than the upper surface of the guide arm 22. The part 224 is provided with a U-shaped notch 2241 at its rear position, and the U-shaped notch 2241 is to facilitate the assembly of the sliding metal part 6 into the guide part 224 . Both ends of the base portion 21 define guiding grooves 225 communicating with the slots 214 .

Please refer to Fig. 2 and Fig. 3 again, the said sliding metal part 3 comprises a flat and elongated plate body part 31 and a sliding part 32 extending from the plate body part 31 to both ends, the said sliding part 32 comprises a self-plate body The transition portion 321 extending obliquely backward from the portion 31 and the sliding arm 322 extending rearward from the transition portion 321 and perpendicular to the plate body portion 31 . The sliding arm 322 is provided with a horizontal portion 3221 on the same plane as the plate body portion 31 and a vertical portion 3222 vertically extending upward from the horizontal portion 3221. The upper end of the vertical portion 3222 connected to the transition portion 321 faces The inner horizontal bending forms the first buckle part 3223, the size of the first buckle part 3223 is similar to the size of the U-shaped notch 2241 and can pass through the U-shaped notch 2241 and be fastened to the guide part 224 and slide along the guide part 224. The end of the vertical part 3222 is bent horizontally inward to form a second buckle part 3224, and the rear end of the second buckle part 3224 is bent downward to form a hook 3225 that cooperates with the movable part 6. The hook 3225 is accommodated in the guide groove 225 of the insulating housing 2 and slides therein along the front-back direction.

4 and 5, the first terminal 4 is accommodated in the base 21 from the rear to the front, and the first terminal 4 includes a vertical base 41 and an elastic arm extending from the upper end of the vertical base 41 into the insulating body 2. 42. The vertical base 41 extends a holding portion 411 to one side, and the holding portion 411 is held in the holding hole 2122 formed by recessing the third receiving groove 2121, so as to stably hold the first terminal 4 on the insulating body 2 Above, pins 412 extend downward from the lower end of the vertical base 41 outside the insulating housing 2 to connect with a printed circuit board (not shown). The front end of the elastic arm 42 is provided with a head 421, and the head 421 protrudes downward and has a contact portion 4211 protruding into the slot 214 for electrical contact with the memory module. part 4212, the rear end surface of the wall part 2131 is provided with a groove 2115 matching with the protrusion 4212, the protrusion 4212 can move up and down in the groove 2115 and the groove 2115 restricts the head 421 in the vertical direction range of movement. The head portion 421 extends upwards and bends backwards to form a hook portion 4213 , the hook portion 4213 extends upwards out of the second receiving groove 2113 and protrudes out of the receiving space 2112 . The second terminal 5 is accommodated in the base portion 21 from front to rear, and also has a contact portion (not labeled) protruding upward into the slot 214 and a pin (not labeled) extending downward out of the insulating housing 2 .

Please refer to FIG. 2 and FIG. 4 , the movable part 6 is located on the receiving space 2112 and can slide on the receiving space 2112 . The bottom surface of the movable part 6 is provided with a groove 61 corresponding to the second receiving groove 2113 and co-accommodating the first terminal 4. The groove 61 can limit the shaking of the first terminal 4 to position the first terminal 4. For the function of the terminal 4 , an opening 62 and a function block 63 protruding from the lower end of the opening 62 toward the second receiving groove 2113 are defined on the front end of the movable member 6 . The above-mentioned hook 4213 can be inserted into the opening 62 of the movable part 6, and through the cooperation of the hook 4213 and the movable part 6, the elastic arm 42 of the first terminal 4 can be lifted up, so that the first and second terminals can be pushed up. The distance between the contact parts increases; the action block 63 is used to press the contact arm 42 of the first terminal 4 so that the contact part 4211 of the contact arm 42 presses against the memory module and achieves electrical contact. The front portion of the above-mentioned action block 63 is an arc-shaped surface, so as to facilitate the upward movement of the hook portion 4213 .

Please refer to Fig. 2 and shown in Fig. 3 again, the two ends of movable part 6 extend down a guide slider 64 that is inserted into described guide groove 225 and can slide in guide groove 225, and the lower end of described guide slider 64 faces The limit block 641 protrudes from the outside, and the insulating body 2 is provided with a limit slot 2251 communicating with the guide groove 225 and used to accommodate the limit block 641. The pin 641 is inserted into the limit slot 2251 to limit the movable part. 6 Movement in the vertical direction.

Please refer to Figures 3 to 4, when assembling, the first terminal 4 is assembled into the insulating body 2 from the back to the front, and the second terminal 5 is assembled into the insulating body 2 from the front to the rear, and the movable part 6 is self-supporting. The surface 2112 is assembled on the insulating body 2 and cooperates with the first terminal 4 so that the hook 4233 is inserted into the opening 62 . The sliding metal part 3 is sleeved on the guiding arm 22 and abuts against the movable part 6 . Before the memory module is inserted into the insulating body 2, the movable part 6 is in the first position, and the first position is that the movable part 6 does not push the elastic arm 42 of the first terminal 4, that is, the contact part 4211 of the first terminal 4 It is away from the slot 214, that is to say, the memory module can be freely inserted into the slot 214 of the card edge connector of the present invention.

Please refer to Fig. 5 again, when the memory module is inserted into the slot 214 from front to back, the front end of the memory module abuts against the guide slider 64 of the movable part 6 and pushes the guide slider 64, and the movable part 6 moves from the first position to the rear side to the second position. The action block 63 of the movable part 6 will push the elastic arm 42 of the first terminal 4, and move the head 421 into the slot 214 so that the contact part 4211 is pressed against the memory module. The two terminals clamp the memory module and hold the memory module.

When the memory module is taken out from the card edge connector 1, the sliding metal part 3 is pulled out from the back to the front, and the movable part 6 moves forward to the first position under the push of the sliding metal part 3, and the action block 63 is separated from the elastic arm 42, and the hook 4233 of the head 421 is inserted into the opening 62, so that the head 421 can be lifted upwards, and the memory module can be pulled out of the card edge connector freely.

The card edge connector of the utility model is equipped with a movable part 6 that can be horizontally displaced on the accommodation space 2112 of the base 21, so that the movable part 6 can be pressed down or away from the elastic arm 42 of the first terminal 4, so that the elastic The front end of the arm 42 moves up and down. When the memory module is inserted, the movable part 6 presses the elastic arm 42 downwards so that the first terminal 4 holds the memory module, and when the memory module is pulled out, the movable part 6 moves away from the elastic arm 42 to cancel the holding force applied to the memory module. Compared with the prior art where the memory module is held by the hard interference of the first and second terminals fixed in the insulating body, making it difficult to plug and unplug the memory module, the card edge connector of the present invention can realize zero insertion force.

The above-mentioned embodiment is a preferred embodiment of the card edge connector of the present utility model, and the card edge connector of the present utility model can also adopt other embodiments:

For example, the movable part 6 can extend out of the insulating body 2 to both sides, so that the movable part 6 can be moved manually without being pushed by the sliding metal part 3 .

For another example, the card edge connector does not need to be provided with the guide arm 22, but one end of the memory module is in electrical contact with the first and second terminals of the card edge connector, and the other end is locked by a locking device. The memory module is buckled to prevent the memory module from being lifted up due to the force exerted by the first and second terminals.

Claims (10)

1. bayonet connector, it is used to the memory module of pegging graft, this bayonet connector comprises: insulating body and be immobilizated in some the first terminals in the insulating body, described insulating body is provided with the longitudinal base portion, this base portion has front end face, be concaved with slot in front end face and reach the some accepting grooves that communicate with this slot, described the first terminal is provided with the holding parts that is immobilizated on the insulating body, elastic arm from holding parts along the accepting groove extension and the weld part outside holding parts extends insulating body, this elastic arm is provided with contact site, it is characterized in that: described bayonet connector also comprises the movable part that is assembled on the insulating body, this movable part is in first, seesaw between the second place, when movable part is positioned at primary importance, described memory module can freely insert in the described slot, when movable part is positioned at the second place, this movable part compresses the elastic arm of the first terminal, and the contact site of the first terminal is moved in slot.

2. bayonet connector as claimed in claim 1 is characterized in that: the two ends of described movable part are extended with slider guide respectively, and the two ends of described base portion are provided with the guiding groove that communicates with slot, and above-mentioned slider guide is contained in this guiding groove.

3. bayonet connector as claimed in claim 2 is characterized in that: when memory module inserted described slot, the front end of memory module and described slider guide leant and move to the second place to promote movable part.

4. as claim 1 or 2 or 3 described bayonet connectors, it is characterized in that: described movable part is provided with the conduit that matches with the elastic arm of the first terminal and compresses the effect piece of elastic arm when movable part is positioned at the second place.

5. as claim 1 or 2 or 3 described bayonet connectors, it is characterized in that: the front end of described movable part offers some openings, and the elastic arm front end of described the first terminal is provided with a head, and this head back is extended with hook portion, and described hook portion can be inserted in this opening.

6. bayonet connector as claimed in claim 5, it is characterized in that: described base portion top also is provided with longitudinal wall portion, the rear end face that described wall portion has offers some and the corresponding groove of the first terminal, and the front end of described head is provided with and can protrudes in the described groove and the teat that can move up and down in groove.

7. as claim 2 or 3 described bayonet connectors, it is characterized in that: described base portion is provided with the stopper slot that communicates with guiding groove, the lower end of described slider guide protrudes out guide vane end stop laterally, and described guide vane end stop is contained in the interior motion with restraint spare in the vertical direction of this stopper slot.

8. as claim 1 or 2 or 3 described bayonet connectors, it is characterized in that: described bayonet connector also is provided with second terminal, this second terminal is to be packed in the base portion by the front group of base portion, and be provided with and protrude into the contact site in the slot and extend the outer weld part of insulating body, the contact site of this second terminal and the contact site of the first terminal are oppositely arranged.

9. as claim 2 or 3 described bayonet connectors, it is characterized in that: described bayonet connector also is provided with the sliding metal spare that is positioned at base portion two ends and horizontally extending forward two guid arms and is assembled on the insulating body and can slides on insulating body, described sliding metal spare is provided with two travelling arms that can slide on described guid arm, the end of described travelling arm is provided with the clamping part that can be buckled on the guid arm, described clamping part and described movable part lean, the medial margin of described guid arm is provided with the horizontal guide groove that extends from front to back, and described guide channel is communicated with slot and guiding groove.

10. as claim 1 or 2 or 3 described bayonet connectors, it is characterized in that: described base portion is provided with an end face, and described end face is concaved with receiving space downwards, and described movable part is positioned at receiving space.

Images