CN204361349U - Bayonet connector - Google Patents

Abstract

A card edge connector, which includes a longitudinally long insulating body, a number of conductive terminals accommodated in the insulating body, and a locking piece pivotally connected to the insulating body, the locking piece includes a main body and the rotating shaft protruding from both lateral sides of the main body, the insulating body is provided with two side walls extending along the longitudinal direction and a tower-shaped part protruding relative to the side walls, the tower-shaped The part is provided with a pivot hole for accommodating the shaft part and a guide part for fitting the shaft part into the pivot hole. The guide portion is provided with a limit inclined surface that cooperates with the limit portion to prevent the locking member from over-rotating, and the limit portion is spaced from the rotating shaft portion to ensure the reliability of the device.

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 and docking electronic modules.

【Background technique】

Please refer to a card edge connector disclosed in Chinese Utility Model Patent No. CN202178418U. The card edge connector includes a lengthwise insulating body, which is held at both ends of the lengthwise length of the insulating body and used for locking/exiting mating The ear buckle part of the electronic card, the insulating body includes two side walls and accommodating parts arranged at the longitudinal ends of the two side walls for accommodating the ear buckle part. The ear buckle protrudes from its main body and is provided with a shaft that is pivotally connected to the insulating body. Correspondingly, the accommodating portion is provided with a pivot hole for accommodating the shaft and a shaft for the shaft. In the installed fan-shaped guide area, the ear buckle part is provided with a protrusion from the shaft part back to the pivot hole. When the user uses the ear buckle part to withdraw from the mating electronic card, the ear buckle part can rotate around the shaft part, and the cooperation between the protrusion and the fan-shaped guide area can restrain the shaft part from excessive rotation.

However, the protrusion is integrally arranged with the rotating shaft so that when the guide area meets the predetermined pullable angle of the earbuckle and cooperates with the protrusion to limit the position, the angle formed by the fan-shaped guide becomes larger. , so that the guiding function of the guide part becomes smaller, which is inconvenient for installation. Moreover, when the user improperly operates the protrusion to break, the integrated structure of the protrusion and the shaft will damage the shaft together, so that the ear buckle loses the function of locking and withdrawing from the electronic card at the same time, forcing the user to have to Replace the connector.

Therefore, it is necessary to provide a card edge connector with an improved structure to overcome the above-mentioned defects.

【Content of utility model】

The purpose of the utility model is to provide a reliable card edge connector.

In order to achieve the above purpose, the utility model card edge connector adopts the following technical solutions: a card edge connector, which includes a longitudinally long insulating body, a number of conductive terminals accommodated in the insulating body and pivotally connected to the The locking piece on the insulating body, the locking piece includes a main body and a rotating shaft protruding from both lateral sides of the main body, the insulating body is provided with two side walls extending in the longitudinal direction and opposite A tower-shaped portion protruding from the side wall, the tower-shaped portion is provided with a pivot hole for receiving the shaft portion and a guide portion for the shaft portion to be inserted into the pivot hole, wherein the lock The clamp protrudes from both lateral sides of the main body to provide a limit portion, and the guide portion is provided with a limit slope that cooperates with the limit portion to prevent the locking member from over-rotating, and the limit portion It is spaced apart from the rotating shaft part.

Further, the main body part of the locking member includes a first main body part and a second main body part, the first main body part is wider than the second main body part and forms a stepped part at the junction, and the limiting part is from The step portion is extended toward the shaft portion.

Further, in a transverse direction perpendicular to the longitudinal direction of the insulating body, the height of the limiting portion is not higher than the height of the step portion.

Further, the locking member is provided with a locking convex part from its first main body that interferes with the tower part, and the locking convex part is located on the virtual line where the limiting part and the rotating shaft part are located. outside.

Further, a central slot is provided between the two side walls of the insulating body, and the locking member is provided with a card ejection portion and limiting walls on both sides of the card ejection portion from the free end of the second main body. The width of the ejecting part is smaller than the width of the central slot.

Further, one end of the two side walls along the lengthwise direction is provided with an end wall, and when the limiting portion of the locking member abuts against the limiting slope, the limiting wall simultaneously abuts against the two sides end wall of the wall.

Further, the guide part includes a vertical guide surface connected to the pivot hole and a limiting inclined surface connected with the vertical guiding surface. The inclined surface is guided into the vertical guide area formed by the vertical guide surface, and then guided into the pivot hole through the vertical guide surface.

Further, the length of the vertical guide surface is greater than the radius of the pivot hole.

Compared with the prior art, the card edge connector of the present utility model has the following beneficial effects: by setting the limit part relatively independently and cooperating with the limit slope to restrain the excessive rotation of the locking part, not only does not affect the guiding function of the guide part , at the same time, the limiting part will not affect the rotating shaft part, which can ensure the reliability of the device.

【Description of drawings】

Figure 1 is a three-dimensional exploded view of the card edge connector of the present invention;

Fig. 2 is a partially enlarged view of the card edge connector shown in Fig. 1, in which the front side wall of the insulating body is cut off to clearly show the structure of the mounting groove;

Fig. 3 is a perspective view of the locking part of the card edge connector of the present invention;

FIG. 4 is a perspective view of the lock clip of FIG. 2 cooperating with the insulating body.

【Detailed ways】

Please refer to FIG. 1, the card edge connector 100 of the present invention can be installed on a printed circuit board (not shown), and used for plugging and docking electronic modules (not shown), so that the printed circuit board and the docking electronic Signal transmission between the modules; the card edge connector 100 includes a lengthwise insulating body 1, a plurality of conductive terminals 2 held in the insulating body 1, and held in the insulating body 1 for fixing to a printed circuit board At least one retainer 3 on the upper body and a pair of locking members 4 pivotally connected to two ends of the insulating body 1 .

1 and 2, the insulating body 1 is provided with two side walls 11 extending in the longitudinal direction, and a tower-shaped portion 12 protruding from the side wall, and the tower-shaped portion 12 is connected to the side wall. The two ends of the wall 11 are lengthwise, so that the insulating body 1 forms a central slot 101 extending along the longitudinal direction for accommodating the above-mentioned docking electronic module; the insulating body 1 protrudes from the central slot 101 with a button 110, which is used to cooperate with the corresponding groove (not shown) on the above-mentioned docking electronic module to prevent reverse insertion; Several terminal slots 102, each conductive terminal 2 is provided with a contact portion 21 protruding into the central slot 101, and a soldering portion 22 extending from the contact portion 21 out of the insulating body, for electrical connection with the above-mentioned printed circuit board ; The contact portions 21 of the conductive terminals 2 are arranged in two rows, arranged in the two side walls 11 respectively, and the welding portions 22 of the conductive terminals 2 are divided into four rows, so as to arrange more conductive terminals 2 in a limited area on the printed circuit , saving the space occupied by the card edge connector 100 on the printed circuit board. The holding member 3 includes a holding portion (not shown) held in the insulating body, and a catch portion 31 extending from the holding portion, so as to strengthen the fixing of the card edge connector 100 on the printed circuit board.

Please refer further to FIG. 3 , the locking member 4 includes a main body 40, a rotating shaft 41 protruding from the main body 40 and pivotally connected to the insulating body, and one end of the main body 40 can extend into the central slot. 101, the card ejecting part 42, the operating part 43 arranged at the other end of the main body part 40, the buckling part 44 located on the opposite side of the operating part 43, and the locking convex part 45 protruding from the main part 40; the tower part 12 has a mounting groove 121 for accommodating the locking member 4, the locking member 4 is pivotally connected in the mounting groove 121, and the tower portion 12 is provided with a pivoting hole 123 corresponding to the rotating shaft portion 41 and guiding the rotating shaft portion 41 Installed into the guide part 122 of the pivot hole 123, during the installation process, the rotating shaft part 41 of the locking part 4 is assembled into the pivoting hole 123 along the guiding part 122, so that the locking part 4 can rotate around the shaft part 41 relative to the insulating body 1 It can be rotated and assembled easily. In the longitudinal direction, the locking member 4 also has a slot 46 that opens outward from the main body 40, and the slot 46 is stepped, which can prevent the locking member 4 from warping and deforming during the molding process, and also The structural strength of the locking member 4 can be guaranteed.

Pull the operation part 43, the locking member 4 rotates, and can realize the swing between the open state and the locked state; The buckle part 44 on the side makes room for the space. At this time, the lock part 4 is in the open state, allowing the docking electronic module to be inserted. During the insertion process, the docking electronic module exerts force on the card ejection part 42 until it is inserted in place. , pull the operating part 43 inward, and the locking part 44 moves to the central slot 101 along with the operating part, and can be buckled in the corresponding notch (not shown) of the docking electronic module. At this time, the locking part 4 is in the locked state, so as to firmly lock the docking electronic module in the card edge connector. When the docking electronic module needs to be withdrawn, the operating part 43 is pulled outward, and the card ejecting part 42 moves toward the central slot 101 to push the docking electronic module out.

The main body 40 of the locking member 4 is divided into a first main body 401 and a second main body 402 corresponding to the aforementioned stepped groove 46, and a step is formed at the intersection of the first and second main body 401, 402, The second main body part 402 protrudes from the junction to the rotating shaft part 41 with a pair of limiting parts 48, the limiting parts 48 are spaced apart from the rotating shaft part 41, and the locking protrusion 45 is located at the limiting part. The position part 48 and the outer side of the virtual straight line where the shaft part 41 is located. The guide portion 122 of the tower portion 12 is provided with a limit inclined surface 14 that cooperates with the limit portion 48 to prevent the locking member 4 from over-rotating. When withdrawing from the docking electronic module, the operating part 43 is pulled outward, and the limit part 48 follows the main body 40 and rotates to the limit slope 14 until the limit part 48 abuts against the limit slope 14, thereby preventing the locking member 4 from over rotate. In the transverse direction perpendicular to the lengthwise direction of the insulating body, the height of the limiting portion 48 is not greater than the height of the step portion. In the longitudinal direction, the width of the opening of the guiding portion 122 is greater than the diameter of the pivot hole 123 to better guide the shaft portion 41 into the pivot hole 123 . Specifically, the guide portion 122 includes a vertical guide surface 1220 connected to the pivot hole 123 and a limiting slope 14 connected to the vertical guide surface 1220, the length of the vertical guide surface 1220 is longer than that of the pivot. The radius of the connection hole 123, when installing the locking member 4, the shaft part 41 is first guided into the vertical guide area formed by the vertical guide surface 1220 through the limit slope 14, and then through the vertical guide area formed by the vertical guide surface 1220 The vertical guiding surface 1220 is guided into the pivot hole 123 to fully exert the guiding function of the guiding portion 122 .

Please further combine with what is shown in FIG. 4 , a pair of limiting walls 47 are provided on both sides of the card ejecting portion 42 of the locking member 4 , and the width of the card ejecting portion 42 is smaller than the width of the central slot 101 . When the inclined surface 14 abuts, the card ejecting part 42 extends into the central slot 101, and at the same time, the restricting wall 47 abuts against the end walls 15 at both ends of the two side walls 11 along the longitudinal direction, so as to strengthen and restrain the excessive rotation of the locking member 4 .

It can be seen that the card edge connector 100 of the present invention restricts the over-rotation of the locking member by cooperating the limit portion 48 with the limit slope 14, and the limit portion 48 is set separately from the shaft portion 41, even if the limit is caused by improper operation. Damage to the bit part 48 will not affect the rotating shaft part 41, so that the card edge connector can still perform card locking/removing operations, increasing the reliability of the card edge connector.

In summary, the above are only preferred embodiments of the utility model, and should not limit the scope of the utility model, that is, any simple equivalent changes made according to the claims of the utility model and the content of the utility model description All should still belong to the scope that the utility model patent covers.

Claims (8)

1. a bayonet connector, it comprises the insulating body in lengthwise shape, the latch being contained in the some conducting terminals in described insulating body and being articulated on described insulating body, described latch comprises main part and protrudes out the shaft of setting from described main part both lateral sides, described insulating body is provided with the two side extended along longitudinally and the turriform portion of protruding setting relative to described sidewall, described turriform portion is provided with the pivoted hole of accommodating described shaft and the guide portion loading described pivoted hole for described shaft, it is characterized in that: described latch protrudes out from described main part both lateral sides and is provided with limiting section, described guide portion is provided with the spacing inclined-plane coordinating with described limiting section to prevent described latch from excessively rotating, and interval is arranged between described limiting section and described shaft.

2. bayonet connector as claimed in claim 1, it is characterized in that: the main part of described latch comprises one first main part and one second main part, described first main part is wider than the second main part and form a stage portion in junction, and described limiting section is extended to described shaft from described stage portion.

3. bayonet connector as claimed in claim 2, is characterized in that: perpendicular to described insulating body longitudinally in a lateral direction, and the height of described limiting section is not higher than the height of described stage portion.

4. bayonet connector as claimed in claim 2, is characterized in that: described latch from its first main part be provided with described turriform portion interference engagement hold protuberance, described in hold the outside that protuberance is positioned at described limiting section and described shaft place virtual line.

5. bayonet connector as claimed in claim 2, it is characterized in that: between described insulating body two side, be provided with a central slot, described latch from described second main part free terminal be provided with move back card division and described in move back the limiting wall of both sides, card division, described in move back card division width be less than the width of described central slot.

6. bayonet connector as claimed in claim 5, it is characterized in that: described two side is provided with end wall along one end of longitudinally, when the limiting section support of described latch is against described spacing inclined-plane, described limiting wall is resisted against the end wall of described two side simultaneously.

7. as the bayonet connector in claim 1 to 6 as described in any one, it is characterized in that: described guide portion comprises the vertical guide surface connecting described pivoted hole and the spacing inclined-plane be connected with described vertical guide surface, when installing described latch, described shaft is first guided into the vertical boot section of described vertical guide surface formation via described spacing inclined-plane, then is guided into described pivoted hole via described vertical guide surface.

8. bayonet connector as claimed in claim 7, is characterized in that: the length of described vertical guiding face is greater than the radius of described pivoted hole.