CN201749972U

CN201749972U - Card edge connector

Info

Publication number: CN201749972U
Application number: CN2010202702966U
Authority: CN
Inventors: 马飞松
Original assignee: Kunshan Jiahua Electronics Co Ltd
Current assignee: Kunshan Jiahua Electronics Co Ltd
Priority date: 2010-07-22
Filing date: 2010-07-22
Publication date: 2011-02-16
Anticipated expiration: 2020-07-22

Abstract

The utility model discloses a card edge connector which comprises an insulating body, a plurality of conductive terminals and a positioning piece, wherein the insulating body comprises a base part extending longitudinally, and a supporting arm extending to the front side and the rear side from two ends of the base part, wherein the base part is also provided with a plugging slot; the conductive terminals are installed in terminal slots arranged on the upper side wall and the lower side wall of the plugging slot; the supporting arm is provided with a slot; the positioning piece is inserted forward into the slot from the rear end of the supporting arm and is assembled on the supporting arm; an elastic sheet the direction of which is opposite to the insertion direction of the positioning piece is arranged at one end of the positioning piece contained in the slot; the supporting arm is provided with a containing groove for containing the elastic sheet; the width of the elastic sheet in vertical direction is smaller than that of the containing groove; and after the positioning piece is arranged on the supporting arm, the elastic sheet can move vertically in the containing groove, thus effectively solving the problem that the whole card edge connector falls off when being used by a consumer as the positioning piece is sealed off and the fixing strength of the card edge connector on the circuit board is not high.

Description

Bayonet connector

[technical field]

The utility model is relevant a kind of bayonet connector, relates in particular to a kind of bayonet connector of improvement of keeper structure.

[background technology]

The fast development of electronic industry promoted scientific and technological progress and raising, and in the high-speed electronic device of today, the application of bayonet connector more and more widely.Now, bayonet connector on the market generally all comprises insulating body, plurality of conductive terminals and keeper, insulating body comprises the support arm at the fundamental sum base portion two ends of lengthwise, base portion is provided with inserting groove, the two side of inserting groove is provided with the terminal groove of accommodating conducting terminal, keeper is fixed on the support arm, it is provided with the leg that extends insulating body, this leg is welded on the circuit board, conducting terminal comprises contact site, fixed part and the weld part that connects successively, wherein when keeper was soldered to circuit board, its welding portion and weld part were in the same plane.This type of bayonet connector is in installation process, at first conducting terminal and keeper are assembled on the insulating body, again the connector that assembles is welded on the circuit board, because in the process of welding, melt the heat that scolding tin produced and to pass to insulating body, insulating body keeper causes the leg sealing-off along with the distortion of insulating body phenomenon occurs because of the buckling deformation of being heated.Because the keeper sealing-off, the constant intensity of bayonet connector on circuit board is not strong, and the consumer phenomenon that whole bayonet connector comes off can occur in use.

Given this, being necessary to design a kind of new bayonet connector solves in the process of welding, melt the heat that scolding tin produced and can pass to insulating body, insulating body is out of shape because of being heated, and keeper causes the leg sealing-off along with the distortion of insulating body phenomenon occurs.

[utility model content]

Therefore, the technical problem of the utility model solution is: a kind of bayonet connector is provided, and this bayonet connector can solve the problem of the keeper sealing-off of bayonet connector effectively.

For overcoming the above problems, the utility model bayonet connector, it comprises insulating body, plurality of conductive terminals and keeper, insulating body comprises that the base portion of lengthwise extension reaches the support arm by vertical base portion in the two ends of this base portion and difference two directions extension forwards, backwards, base portion is provided with inserting groove, and the two long sidewalls up and down of inserting groove are provided with the terminal groove of accommodating conducting terminal; Support arm is provided with slot, keeper inserts groups of slots forward by the rear end of this support arm and is contained on the support arm, and wherein, keeper is contained in that an end of slot is rolling a shell fragment, support arm is provided with the accepting groove of accommodating this shell fragment, and this shell fragment is at the width of the above-below direction width less than this accepting groove; After keeper was installed on the support arm, this shell fragment can move up and down in accepting groove.

Compared with prior art, the keeper of the utility model bayonet connector is installed on the support arm of insulating body, on this keeper shell fragment is set, support arm is provided with the accepting groove of accommodating this shell fragment, and this shell fragment is at the width of the above-below direction width less than this accepting groove, so after keeper was installed on the support arm, the shell fragment of keeper can move up and down in this accepting groove.When this bayonet connector is soldered on the circuit board, insulating body is in the back buckling deformation of being heated, and keeper is movably in the accepting groove of insulating body, so, in the time of the insulating body warpage, can not drive keeper moves, the problem that the keeper sealing-off can not occur has solved effectively owing to the keeper sealing-off, and the constant intensity of bayonet connector on circuit board is not strong, the consumer phenomenon that whole bayonet connector comes off can occur in use.

[description of drawings]

Fig. 1 is the stereogram of the utility model bayonet connector;

Fig. 2 is the stereogram at another visual angle of the utility model bayonet connector;

Fig. 3 is the exploded view of the utility model bayonet connector;

Fig. 4 be Fig. 1 along A-A to cutaway view.

[embodiment]

Please refer to Fig. 1 to shown in Figure 4, the utility model bayonet connector 100 comprises insulating body 1, is assembled in conducting terminal 2 and keeper 3 on the insulating body 1.

Please refer to Fig. 1, shown in Figure 2, insulating body 1 comprises that the base portion 10 of lengthwise extension reaches the support arm 11 by the both sides extension forwards, backwards of the vertical base portion 10 in the two ends of base portion 10, base portion 10 is provided with the lengthwise type inserting groove 12 that power circuit board (not shown) inserts, the plurality of terminals groove 121 that is provided with on the two side up and down of this inserting groove 12, conducting terminal 2 is assembled in the terminal groove 121.The support arm 11 of insulating body 1 is provided with slot 110, and slot 110 is extended forward by the rear end of support arm 11, and slot 110 penetrates the support arm 11 of insulating body 1 downwards, and keeper 3 inserts slot 110 forward by the rear end of this support arm 11 and is assembled on the support arm 11.

Please be especially with reference to shown in Figure 3, keeper 3 comprises flat part 30 that is contained in the slot 110 and the weld part 32 that stretches out outside the slot 110, the front end of flat part 30 is provided with the shell fragment 31 that protrudes out plane, flat part 30 place, this shell fragment 31 is by the below of flat part 30 rolling the forming that make progress, its bearing of trend is opposite with the direction that keeper 3 inserts support arm 11, promptly the front end by flat part 30 extends back, and weld part 32 is extended to the direction bending away from base portion 10 by the lower limb of the rear end of this flat part 30.

Please be especially with reference to shown in Figure 4, support arm 11 is provided with the accepting groove 112 of accommodating shell fragment 31, accepting groove 112 is extended to base portion 10 by the front end of support arm 11, and this accepting groove 112 is connected with slot 110, and this shell fragment 31 is in the width d of the above-below direction width D less than this accepting groove 112; After keeper 3 was installed on the support arm 11, this shell fragment 31 can move up and down in accepting groove 112, but can not come off insulating body 1.

Please be especially with reference to shown in Figure 4, the rear end of support arm 11 also is provided with fluting 114, this fluting 114 communicates with accepting groove 112, the weld part 32 of keeper 3 is positioned at this 114 places that slot, the side towards shell fragment 31 of weld part 32 is connected on the wall 1141 of fluting 114, simultaneously shell fragment 31 is connected to accepting groove 112 towards an end of weld part 32 and is positioned on fluting 114 wall 1121 on one side, so that after keeper 3 was installed on the support arm 11, it can not move on fore-and-aft direction.

Please be especially with reference to shown in Figure 3, conducting terminal 2 is installed in the terminal groove 121 that is provided with on the two side up and down of this inserting groove 12, it comprises first conducting terminal 22 that is positioned at inserting groove 12 tops and second conducting terminal 21 that is positioned at inserting groove 12 belows, wherein second conducting terminal 21 is inserted backward by the place ahead of base portion 10 and is assembled on the base portion 10, and this second conducting terminal 21 is back-shaped shape; First conducting terminal 22 is inserted forward by the rear of base portion 10 and is assembled on the base portion 10, and this first conducting terminal 22 roughly is " Z " type.First conducting terminal 22 includes contact site 23, fixed part 24 and the leg 25 that is connected successively with second conducting terminal 21, and contact site 23 stretches into inserting groove 12 by terminal groove 121, and leg stretches out insulating body 1.The leg 25 of the weld part 32 of keeper 3 and first conducting terminal 22 and second conducting terminal 21 is positioned on the same horizontal plane.

This bayonet connector 100 at first inserts conducting terminal 2 in the insulating body 1 of forming when assembling, keeper 3 is assembled on the insulating body 1 again; During use, the bayonet connector 100 that assembles is welded on the circuit board of electronic component.Because after keeper 3 is installed on the support arm 11, this shell fragment 31 can move up and down in accepting groove 112, so, in the time of insulating body 1 warpage, can not drive keeper 3 and move, the problem of keeper 3 sealing-offs can not appear.

Above embodiment only is a kind of execution mode of the present utility model, it or not whole or unique execution mode, any equivalence to technical solutions of the utility model changes those of ordinary skills by reading the utility model specification, is claim of the present utility model and contains.

Claims

1. bayonet connector, it comprises insulating body, plurality of conductive terminals and keeper, this insulating body comprises that the base portion of lengthwise extension reaches the support arm by vertical base portion in the two ends of this base portion and difference two directions extension forwards, backwards, this base portion is provided with inserting groove, and the two long sidewalls up and down of this inserting groove are provided with the terminal groove of accommodating conducting terminal; Described support arm is provided with slot, described keeper inserts groups of slots forward by the rear end of this support arm and is contained on the support arm, it is characterized in that: described keeper is contained in that an end of slot is rolling a shell fragment, described support arm is provided with the accepting groove of accommodating this shell fragment, and this shell fragment is at the width of the above-below direction width less than this accepting groove; After described keeper was installed on the support arm, this shell fragment can move up and down in accepting groove.

2. want 1 described bayonet connector according to right, it is characterized in that: described keeper comprises the flat part weld part outer with stretching out slot that is housed in the described slot, and described shell fragment is arranged at the front end of this flat part; Described weld part is extended to the direction bending away from described base portion by the lower limb of the rear end of this flat part.

3. want 2 described bayonet connectors according to right, it is characterized in that: described shell fragment protrudes out plane, described flat part place, and its bearing of trend is opposite with the direction that described keeper inserts support arm, and promptly the front end by this flat part extends back.

4. want 3 described bayonet connectors according to right, it is characterized in that: described slot is extended forward by the rear end of described support arm, penetrates described insulating body simultaneously downwards.

5. want 4 described bayonet connectors according to right, it is characterized in that: described accepting groove is extended to described base portion by the front end of described support arm, and this accepting groove is connected with described slot.

6. want 5 described bayonet connectors according to right, it is characterized in that: the rear end of described support arm also is provided with fluting, and this fluting communicates with described accepting groove, and described welding position is in this fluting place.

7. want 6 described bayonet connectors according to right, it is characterized in that: the side towards described shell fragment of described weld part is connected on the wall of described fluting, simultaneously described shell fragment is connected to described accepting groove towards an end of this weld part and is positioned on the fluting wall on one side, so that after described keeper was installed on the described support arm, it can not move on fore-and-aft direction.。

8. want 1 or 7 described bayonet connectors according to right, it is characterized in that: described conducting terminal comprises first conducting terminal that is positioned at described inserting groove top and second conducting terminal that is positioned at the inserting groove below; Described first conducting terminal includes contact site, fixed part and the leg that is connected successively with second conducting terminal.

9. want 8 described bayonet connectors according to right, it is characterized in that: the leg of the weld part of described keeper and described first conducting terminal and second conducting terminal is positioned on the same horizontal plane.