CN108493648B - Electrical connector - Google Patents
Electrical connector Download PDFInfo
- Publication number
- CN108493648B CN108493648B CN201810159016.5A CN201810159016A CN108493648B CN 108493648 B CN108493648 B CN 108493648B CN 201810159016 A CN201810159016 A CN 201810159016A CN 108493648 B CN108493648 B CN 108493648B
- Authority
- CN
- China
- Prior art keywords
- elastic arm
- abutting
- slot
- electrical connector
- welding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
- H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
- H01R12/73—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
- H01R13/6275—Latching arms not integral with the housing
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention discloses an electric connector, which is used for butting a butting piece and comprises: an insulating body having a slot extending along a longitudinal direction of the insulating body for receiving the mating member; the plurality of terminals are arranged on the insulating body, at least partially exposed out of the slot and used for electrically contacting with the butting piece; the locking piece is provided with an elastic arm, the elastic arm is sequentially provided with a first elastic arm and a second elastic arm extending from the first elastic arm along the direction far away from the insulating body, the elastic arm in a free state has a first position, at the moment, the first elastic arm is vertically arranged, and the second elastic arm extends towards the slot in an inclined mode and is used for elastically clamping the butt joint piece; and the second position is far away from the slot relative to the first position, and the first elastic arm positioned at the second position is obliquely arranged along the direction of the far away from the slot.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to an electrical connector, and more particularly, to an electrical connector for mating with an electronic card and having a good fixing effect.
[ background of the invention ]
A conventional card edge connector is mounted on a circuit board from top to bottom for mating with an electronic card. The card edge connector has an insulating body, and a slot is disposed lengthwise and recessed from a front surface of the insulating body for mating with an electronic card. The terminals are arranged in an upper row and a lower row and are correspondingly arranged above and below the slot, and the terminals are provided with a contact part which protrudes into the slot for electrically contacting the electronic card. The two metal parts are fixed on the insulating body and located at two ends of the slot in the longitudinal direction, each metal part is provided with a first panel and a second panel formed by extending and bending the upper edge of the first panel, each first panel is provided with a first arm and a second arm forming an angle with the first arm, and a plug-in part is arranged on each second arm and used for clamping the electronic card groove. The second panel is positioned at the inner side of the first panel and forms a flat attaching shape with the first panel.
Because the first arm and the second arm are bent to form an angle, the elastic performance of the first panel is improved, and the elastic clamping performance of the inserting part arranged on the first arm and the electronic card is better. However, when the card edge connector is vibrated, the card is vibrated to move left and right in the longitudinal direction, and the insertion portion is deformed toward a direction away from the insertion slot by an acting force generated by the left and right movement of the card, so that the insertion portion is easily separated from the card slot, and the metal member has a poor fixing effect on the card.
Therefore, there is a need for a new electrical connector to overcome the above problems.
[ summary of the invention ]
The invention aims to provide a card edge connector which comprises a first elastic arm and a second elastic arm of a fixing device, wherein the first elastic arm and the second elastic arm are elastically deformed due to the abutting of an abutting part, so that the fixing device obtains pre-pressure and bending rigidity is increased.
In order to achieve the purpose, the invention adopts the following technical scheme: an electrical connector for mating with a mating member, comprising: an insulating body having a slot extending along a longitudinal direction of the insulating body for receiving the mating member; the plurality of terminals are arranged on the insulating body, at least partially exposed out of the slot and used for being electrically contacted with the butting piece; the locking piece is provided with an elastic arm, the elastic arm is sequentially provided with a first elastic arm and a second elastic arm extending from the first elastic arm along the direction far away from the insulating body, the elastic arm in a free state is provided with a first position, at the moment, the first elastic arm is vertically arranged, and the second elastic arm extends towards the slot in an inclined mode and is used for elastically clamping the butt joint piece; the abutting portion abuts against the elastic arm, the elastic arm is provided with a second position, the second position is far away from the slot relative to the first position, and the first elastic arm located at the second position is obliquely arranged along the direction of far away from the slot.
Further, the elastic arm has a bending portion for connecting the first elastic arm and the second elastic arm, and the bending portion bends toward the abutting part and has a gap with the abutting part.
Furthermore, the electric connector is arranged on a circuit board, a welding part is integrally extended from the abutting part, the welding part is provided with a welding groove, the welding groove is used for welding and fixing the abutting part on the circuit board, each terminal is provided with a welding leg, the welding leg is used for welding and fixing the terminal on the circuit board, and the welding groove and the plurality of welding legs are arranged in a coplanar manner.
Further, at least one of the solder feet is overlapped with the projection of the welding part in the front-back direction and is flush with the surface of the circuit board.
Furthermore, the locking piece is provided with a base, the slot is formed by recessing from front to back, the insulating body is also provided with a through hole penetrating through the slot from front to back, the through hole is positioned at one end of the slot in the longitudinal direction, the base is accommodated and fixed in the through hole, and the front end and the back end of the base are respectively exposed at the front and the back of the insulating body.
Further, the through-hole has a step portion, the base portion has a hook portion and a groove of stepping down, the groove of stepping down steps portion, hook portion is located step portion's rear and with step portion cooperation is fixed for it is spacing in the front and back direction the hasp piece.
Further, the insulator defines a front-back direction perpendicular to the longitudinal direction, the electrical connector has an inner side and an outer side in the longitudinal direction, the inner side is close to the slot direction, the outer side is far away from the slot direction, the abutting portion is located at the inner side of the elastic arm, the elastic arm extends towards the inner side to exceed the abutting portion, and the elastic arm extends forwards to exceed the abutting portion.
Furthermore, a limiting part extends from the elastic arm to the inner side, and the limiting part is positioned on the inner side of the abutting part to prevent the locking fastener from deforming too much towards the outer side.
Furthermore, a folding part extends from the lock catch piece, the abutting part is provided with a first end and a second end which are oppositely arranged in the front and the back, the first end abuts against the elastic arm, and the second end is connected with the folding part.
Further, a welding part and a holding part extend from the abutting part, the welding part is positioned in front of the holding part, the welding part is close to the first end relative to the center of the abutting part, and the holding part is close to the second end relative to the center of the abutting part.
Furthermore, the locking fastener, the abutting part and the folding part are formed by integrally punching and molding a metal plate.
Furthermore, the electrical connector is a card edge connector, the docking member is an electronic card, the two locking members are located at two ends of the slot in the longitudinal direction, each locking member has a fastening portion for elastically fastening the docking member, the two abutting portions are located between the two locking members, the docking member is located between the two abutting portions, and a gap is formed between the abutting portions and the docking member.
Further, the two abutting portions abut against the two corresponding elastic arms respectively, and the distance between the two second positions in the longitudinal direction is larger than the distance between the two first positions in the longitudinal direction.
Furthermore, the elastic arm is provided with a convex rib, and the convex rib and the abutting part are oppositely arranged.
The invention adopts another technical scheme that: a method of making a fastening device for fastening an electronic card, the method comprising: stamping a metal plate to form a locking piece and an abutting part positioned above the locking piece, wherein a folding part is connected with the locking piece and the abutting part; defining a vertical plane to be coplanar with the metal plate; bending the locking piece to enable the locking piece to be provided with a first elastic arm which is coplanar with the vertical surface, a second elastic arm which is obliquely arranged with the vertical surface, and a bending part which is connected with the first elastic arm and the second elastic arm; then the turnover part is turned downwards, so that the abutting part is turned over together until the abutting part abuts against the second elastic arm; the abutting part abuts against the second elastic arm to enable the lock catch piece to generate displacement, and the first elastic arm and the vertical surface are obliquely arranged.
Furthermore, the two fixing devices are fixed on an insulating body, the insulating body is provided with a slot which is arranged between the two fixing devices in a lengthwise mode, the slot is used for butting the electronic card, and the first elastic arm which is obliquely arranged with the vertical surface is far away from the slot relative to the vertical surface.
Furthermore, the second elastic arm is abutted to the abutting part and is provided with a pressed point, the pressed point and the turnover part are oppositely arranged, the bending part is positioned between the pressed point and the turnover part, a gap is formed between the lock catch piece and the abutting part, the turnover part is connected to the bending part, the gap is increased from small to small, and the gap is decreased from large to small from the bending part to the pressed point.
Furthermore, the locking piece is provided with a convex rib, the convex rib extends from the first elastic arm to the second elastic arm, and the convex rib and the abutting part are oppositely arranged.
Furthermore, the electronic card has a fixing hole and a groove, a fixing part extends from the abutting part, a buckling part extends from the tail end of the second elastic arm, the fixing part enters the fixing hole, the buckling part enters the groove, and at least part of the buckling part is higher than the fixing part.
Compared with the prior art, the electric connector is provided with an abutting part abutting against the elastic arm, so that the elastic arm is elastically deformed from the first position to the second position, and the second position is far away from the slot relative to the first position. The abutting part abuts against the elastic arm to generate elastic deformation, so that the elastic arm obtains a pre-pressure, the bending rigidity of the elastic arm is increased, the bending rigidity of the locking fastener is increased, the locking fastener is difficult to elastically deform towards the direction away from the slot when the electronic card moves left and right, the buckling part is difficult to fall off the groove of the electronic card, and the fixing effect of the locking fastener is improved.
[ description of the drawings ]
Fig. 1 is a perspective assembly view of an electrical connector and an electronic card according to a first embodiment of the invention;
FIG. 2 is an exploded perspective view of the electrical connector and the electronic card of FIG. 1;
FIG. 3 is a plan exploded view of the electrical connector and electronic card of FIG. 2;
FIG. 4 is a perspective view of a first step in the manufacturing process of the fixture of FIG. 1;
FIG. 5 is a perspective view of a second step of the fixture of FIG. 4;
FIG. 6 is a perspective view of a third step of the fixture of FIG. 5;
FIG. 7 is a perspective view of a fourth step of the fixture of FIG. 6;
fig. 8 is a simplified schematic diagram of the fixture forming process of fig. 1.
Detailed description of the embodiments reference is made to the accompanying drawings in which:
[ detailed description ] embodiments
For a better understanding of the objects, structure, features, and functions of the invention, reference should be made to the drawings and detailed description that follow.
Referring to fig. 1, fig. 2 and fig. 3, an electrical connector 100 according to an embodiment of the present invention is provided, which is a card edge connector, and the electrical connector 100 is mounted on a circuit board (not shown) for mating with an electronic card 200. The electrical connector 100 has a housing 1, and the housing 1 has a slot 120 for receiving the electronic card 200. The plurality of terminals 2 are disposed in the insulating body 1 and exposed to the insertion slot 120 for electrically contacting the electronic card 200. The two fixing devices 3 are respectively disposed at two opposite ends of the slot 120 for elastically fastening the electronic card 200.
The electronic card 200 has a groove 201 and a fixing hole 202 on two sides in the longitudinal direction X, and the groove 201 and the fixing hole 202 are both used for being in snap fit with the fixing device 3, so as to fix the electronic card 200 in the slot 120.
Referring to fig. 1, 2 and 3, the insulative housing 1 defines a longitudinal direction X, a front-back direction Y perpendicular to the longitudinal direction X, and a vertical direction Z. The electrical connector 100 has an inner side I and an outer side O, the inner side I is close to the slot 120 along the longitudinal direction X, and the outer side O is away from the slot 120 along the longitudinal direction X.
The insulating body 1 has an upper surface 10 and a lower surface 11 disposed oppositely, and a front surface 12 and a rear surface 13 disposed oppositely. The lower surface 11 is used for being mounted on the circuit board, the insertion slot 120 and two through holes 121 are recessed from the front surface 12, and the insertion slot 120 penetrates through the upper surface 10, so that the electronic card 200 can be obliquely inserted into the insertion slot 120 from top to bottom. The two through holes 121 penetrate through the front surface 12 and the rear surface 13, and are respectively located at two ends of the slot 120 in the longitudinal direction X. The through hole 121 has a step portion 122 therein, and a step surface 1220 is disposed behind the step portion 122, wherein the step surface 1220 is parallel to the rear surface 13 and exposed in the through hole 121. A plurality of material taking grooves 130 are concavely formed on the rear surface 13 to reduce bending and tilting of the insulating body 1 during plastic molding.
Referring to fig. 1, 2 and 3, a plurality of terminals 2 are arranged in an upper row of terminals 2A and a lower row of terminals 2B along the longitudinal direction X, and are respectively fixed on the upper and lower sidewalls of the slot 120. Each of the terminals 2 has a solder tail 20, the solder tails 20 of the upper row of terminals 2A are exposed at the lower surface 11 and the rear surface 13, and the solder tails 20 of the lower row of terminals 2B are exposed at the lower surface 11 and the front surface 12.
The fixing device 3 is formed by stamping a metal plate, the metal plate is arranged along a vertical surface, and the fixing device 3 defines a first side M and a second side N which are perpendicular to the metal plate and located at two opposite sides of the metal plate. The fixing device 3 has the following molding steps:
the first step is as follows: referring to fig. 4, a locking member 31 for locking the electronic card 200, an abutting portion 32 for abutting against the locking member 31, and a folded portion 33 for connecting the locking member 31 and the abutting portion 32 are obtained by stamping on a metal plate, the front end of the upper side edge of the locking member 31 is protruded with two upper protruding pieces a, and the side edge of the locking member 31 is protruded with a lower protruding piece b. The upper edge of the abutting portion 32 protrudes with two protruding pieces c arranged oppositely, wherein the protruding piece c arranged relatively near the front has a hole (not numbered) arranged therethrough. The locking member 31 has a resilient arm R and a base 315, the front end of the base 315 is connected to the folded part 33, and the resilient arm R extends forward from the front end of the base 315. From an abdicating groove 3154 is concavely established at the upper side edge of base portion 315, from the upper side edge of base portion 315 is protruding to be stretched and is located a hook portion 3155 at abdicating groove 3154 rear, and from an elastic groove 3153 is concavely established forward in the middle of the rear end of base portion 315, elastic groove 3153 will base portion 315 rear end falls into relative first portion 3151 and a second portion 3152 from top to bottom, abdicating groove 3154 with hook portion 3155 is located on the first portion 3151. Referring to fig. 2, the locking member 31 has a rib 316 protruding toward the second side N, and the rib 316 is disposed on the elastic arm R.
The second step is as follows: referring to fig. 4 and 5, the two upper protruding pieces a are bent downward to form a locking portion 310, such that the locking portion 310 is located on the first side M, the lower protruding piece c is bent upward to form a limiting portion 311, the limiting portion 311 is located on the first side M, the two protruding pieces c are bent downward, the protruding piece c located in front of the locking portion forms a welding portion 320, a hole (not numbered) formed through the welding portion forms a welding groove 3201, the protruding piece c located in back of the locking portion forms a retaining portion 321, and the protruding pieces c are bent downward such that the welding portion 320 and the retaining portion 321 are located on the second side N.
The third step: referring to fig. 6 and 8, the board surface of the locking element 31 is bent toward the first side M, so that the elastic arm R is plastically deformed to form a first elastic arm 312 and a second elastic arm 313, and a bent portion 314 connected to the first elastic arm 312, the first elastic arm 312 is vertically disposed, the second elastic arm 313 is obliquely disposed toward the first side M, so that the first elastic arm 312 and the second elastic arm 313 form an angle, and the locking portion 310 is located on the second elastic arm 313. The rib 316 extends from the first elastic arm 312 to the second elastic arm 313, and is disposed opposite to the abutting portion 32. The rib 316 reinforces the strength of the locking member 31, contributing to an increase in the effect of the locking member 31 against elastic deformation
The fourth step:referring to fig. 7 and 8, the folded portion 33 is folded downward toward the first side M, so that the abutting portion 32 is folded downward toward the first side M, the plate surface of the locking element 31 is disposed opposite to the plate surface of the abutting portion 32, and the abutting portion 32 abuts against the second elastic arm 313. The second elastic arm 313 is in contact with the abutting portion 32 to form a pressure receiving point 34, the abutting portion 32 applies an acting force to the second elastic arm 313 toward the second side N through the pressure receiving point 34, so that the second elastic arm 313 elastically deforms toward the second side N, the first elastic arm 312 is driven by the second elastic arm 313 to elastically deform toward the second side N, and the second elastic arm 313 has a vertical shape that is elastically deformed to a shape that is inclined toward the second side N. The first resilient arm 312 is resiliently deformed toward the second side N, increasing the bending rigidity of the first resilient arm 312, thereby increasing the resistance of the first resilient arm 312 against resilient deformation, and further increasing the resistance of the locking member 31 against resilient deformation. The second elastic arm 313 faces theFirst, theThe two sides N are elastically deformed to increase the bending rigidity of the second elastic arm 313, thereby increasing the resistance of the second elastic arm 313 against elastic deformation and further increasing the resistance of the locking member 31 against elastic deformation.
Referring to fig. 3, fig. 7 and fig. 8, a gap (not numbered) is formed between the latch 31 and the abutting portion 32 after the manufacturing, the gap increases from small to small from the folded portion 33 to the bent portion 314, and the gap decreases from large to small from the bent portion 314 to the pressed point 34 until the gap at the pressed point 34 is 0. From the folded part 33 to the bent part 314, the gap is increased from small to small, so that the bending deflection of the first elastic arm 312 is increased, the bending rigidity of the second elastic arm 313 is increased, from the bent part 314 to the compression point 34, the gap is decreased from large to small, and the compression point 34 formed by the abutting part 32 on the second elastic arm 313 is ensured.
Referring to fig. 1, 2 and 3, after the two fixing devices 3 are manufactured, the two fixing devices 3 are inserted into the corresponding two through holes 121 from front to back, the first portion 3151 and the second portion 3152 are accommodated in the through holes 121 and exposed behind the through holes 121, and the hook portion 3155 passes over the step portion 122 and is engaged with the step surface 1220 to limit the fixing devices 3 in the front-back direction Y. The receding groove 3154 recedes the stepped portion 122, so as to prevent the first portion 3151 from being stopped by the stepped portion 122, and the hook portion 3155 may not be able to clamp the stepped surface 1220. The second portion 3152 is engaged with the inner wall of the through hole 121 to increase the fixing effect of the fixing device 3 and the insulating housing 1. The elastic groove 3153 increases the elasticity of the first portion 3151 and the second portion 3152, so that the first portion 3151 and the second portion 3152 are elastically clamped with the through hole 121, and the base 315 is prevented from damaging the through hole 121 during rigid contact. The front end of the base 315 extends beyond the front surface 12, so that the folded part 33 is exposed at the front surface 12, and the first elastic arm 312 and the second elastic arm 313 are located in front of the front surface 12. Of course, in other embodiments, the fixing device 3 may be fixed on the circuit board.
Referring to fig. 1, 2 and 3, the first side M faces the inner side I, and the second side N faces the outer side O. The abutting portion 32 is located on the inner side I of the locking piece 31, and the second elastic arm 313 extends beyond the abutting portion 32 toward the inner side I, and the second elastic arm 313 extends forward beyond the abutting portion 32. The fastening portion 310, the limiting portion 311, the welding portion 320, and the holding portion 321 are all located on the inner side I of the abutting portion 32.
The locking portion 310 is used to enter the groove 201, so as to lock the electronic card 200. Part of the limiting portion 311 overlaps with the projection of the abutting portion 32 in the longitudinal direction X, and since the limiting portion 311 is located on the inner side I of the abutting portion 32, the abutting portion 32 can stop the limiting portion 311 from moving excessively toward the outer side O in the longitudinal direction X, so as to prevent the latch 31 from deforming excessively toward the outer side O.
The abutting portion 32 has a first end 32A and a second end 32B that are disposed opposite to each other in the front-rear direction, the first end 32A abuts against the second elastic arm 313 so that the second elastic arm 313 is elastically deformed toward the outer side O, and the second end 32B is connected to the folded portion 33 and is disposed opposite to the front end plate surface of the base portion 315.
Referring to fig. 1, fig. 2 and fig. 3, the soldering portion 320 is used for soldering and fixing the locking element 31 to the circuit board, and the soldering portion 320 is close to the first end 32A relative to the center of the abutting portion 32, because the first end 32A abuts against the second elastic arm 313, the first end 32A will receive the reaction force of the second elastic arm 313, and the soldering portion 320 is close to the first end 32A, so that the rigidity of the first end 32A is increased, which is beneficial for the first end 32A to abut against the second elastic arm 313, so that the second elastic arm 313 generates elastic deformation. The holding portion 321 is located under the electronic card 200 and a portion of the holding portion 321 enters the fixing hole 202, thereby positioning the electronic card 200 in the longitudinal direction X and supporting the electronic card 200. Meanwhile, the soldering groove 3201 receives a solder to solder-fix the locking member 31 to the circuit board, and the soldering groove 3201 and the plurality of solder tails 20 are arranged coplanar on the surface of the circuit board. Each of the soldering portions 320 overlaps with the solder tails 20 of the two upper rows of terminals 2A and the solder tails 20 of the two lower rows of terminals 2B in projection in the front-rear direction Y, so that the length of the electrical connector 100 in the longitudinal direction X is reduced, which is beneficial to the miniaturization of the electrical connector 100.
The holding portion 321 is close to the second end 32B relative to the center of the abutting portion 32, and is opposite to the folded portion 33 on the upper and lower sides of the front end of the base 315, the folded portion 33 is connected with the second end 32B, so that the strength of the second end 32B is increased, and the holding portion 321 is close to the second end 32B, so that the holding portion 321 is not easy to deform, and the positioning effect and the supporting effect are ensured.
Referring to fig. 1, fig. 2 and fig. 3, after the electronic card 200 is inserted into the insertion slot 120, the electronic card 200 is located between the two locking elements 31, the two fastening portions 310 respectively enter the two grooves 201, and the two fixing portions 321 respectively enter the two fixing holes 202. The electronic card 200 is located between the two abutting portions 32, and the plate surface of the abutting portion 32 and the side edge of the electronic card 200 are disposed opposite to each other in the longitudinal direction X with a gap.
When the electronic card 200 is shaken to move left and right, the abutting portion 32 acts as a stopper for the electronic card 200. When the electronic card 200 moves left and right, a force toward the outer side O is applied to the locking portion 310. The first elastic arm 312 and the second elastic arm 313 increase the abutting portion 32 abutting against the second elastic arm 313 relative to the first arm and the second arm of the prior art, so that the second elastic arm 313 moves towards the outer side O and is elastically deformed, the position of the second elastic arm 313 after being elastically deformed is far away from the insertion slot 120 relative to the position before the second elastic arm 313 is elastically deformed, the first elastic arm 312 moves towards the outer side O and is elastically deformed by the second elastic arm 313, the position of the first elastic arm 312 after being elastically deformed is far away from the insertion slot 120 relative to the position before the first elastic arm 312 is elastically deformed, and thus the first elastic arm 312 and the second elastic arm 313 obtain a pre-pressure in the longitudinal direction X, so that the resistance of the first elastic arm 312 and the second elastic arm 313 in the longitudinal direction X is increased The bending stiffness is increased, and the bending stiffness of the locking element 31 in the longitudinal direction X is increased, so that the locking element 31 is not easily elastically deformed toward the outer side O when moving left and right on the electronic card 200, and the fastening portion 310 is not easily separated from the groove 201, thereby increasing the stability of the fixing effect.
In summary, the electrical connector of the present invention has the following advantages:
1. the first elastic arm 312 and the second elastic arm 313 increase the abutting portion 32 abutting against the second elastic arm 313 relative to the first arm and the second arm of the prior art, so that the second elastic arm 313 moves towards the outer side O and is elastically deformed, the first elastic arm 312 moves towards the outer side O and is elastically deformed under the driving of the second elastic arm 313, the positions of the first elastic arm 312 and the second elastic arm 313 after being elastically deformed are respectively far away from the slot 120 relative to the positions before the first elastic arm 312 and the second elastic arm 313 are elastically deformed, and therefore the first elastic arm 312 and the second elastic arm 313 obtain a pre-pressure in the longitudinal direction X, and the bending rigidity of the first elastic arm 312 and the second elastic arm 313 in the longitudinal direction X is increased, and the bending rigidity of the locking element 31 in the longitudinal direction X is increased, so that the locking element 31 is not easily elastically deformed outward when moving left and right on the electronic card 200, and the fastening portion 310 is not easily disengaged from the groove 201, thereby increasing the stability of the fixing effect.
2. A gap (not numbered) is formed between the locking element 31 and the abutting portion 32, the gap increases from small to large from the folded portion 33 to the bent portion 314, and the gap decreases from large to small from the bent portion 314 to the pressed point 34 until the gap at the pressed point 34 is 0. The gap from the folded portion 33 to the bent portion 314 is increased from small to large, so that the bending deflection of the first elastic arm 312 is increased, the bending rigidity of the second elastic arm 313 is increased, and the gap from the bent portion 314 to the pressure point 34 is decreased to large, so that the pressure point 34 formed by the abutting portion 32 on the second elastic arm 313 is ensured.
3. The hook 3155 goes over the step 122 and is in snap fit with the step surface 1220 to stop the forward movement of the fixing device 3. The receding groove 3154 recedes the stepped portion 122, so that the first portion 3151 is prevented from being stopped by the stepped portion 122, and the hook portion 3155 is located below the stepped portion 122, so that the hook portion 3155 cannot clamp the stepped surface 1220.
4. The projection of the partial position-limiting portion 311 and the abutting portion 32 in the longitudinal direction X overlap, and since the position-limiting portion 311 is located on the inner side I of the abutting portion 32, the abutting portion 32 can move excessively towards the outer side O in the longitudinal direction X by the position-limiting portion 311, so as to prevent the latch 31 from deforming excessively towards the outer side O. .
5. The welding portion 320 is close to the first end 32A relative to the center of the abutting portion 32, and the first end 32A abuts against the second elastic arm 313, so that the first end 32A receives a reaction force of the second elastic arm 313, and the welding portion 320 is close to the first end 32A, so that the rigidity of the first end 32A is increased, and the first end 32A abuts against the second elastic arm 313 to enable the second elastic arm 313 to generate elastic deformation.
6. Each soldering portion 320 overlaps with the solder tails 20 of the two upper rows of terminals 2A and the solder tails 20 of the two lower rows of terminals 2B in projection in the front-rear direction Y, so that the length of the electrical connector 100 in the longitudinal direction X is reduced, which is beneficial to the miniaturization of the electrical connector 100.
The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all technical changes that can be made by applying the present specification and the drawings are included in the scope of the present invention.
Claims (19)
1. An electrical connector for mating with a mating member, comprising:
an insulating body having a slot extending along a longitudinal direction of the insulating body for receiving the mating member;
the plurality of terminals are arranged on the insulating body, at least partially exposed out of the slot and used for being electrically contacted with the butting piece;
the locking piece is provided with an elastic arm, the elastic arm is sequentially provided with a first elastic arm and a second elastic arm extending from the first elastic arm along the direction far away from the insulating body, the elastic arm in a free state is provided with a first position, at the moment, the first elastic arm is vertically arranged, and the second elastic arm extends towards the slot in an inclined mode and is used for elastically clamping the butt joint piece;
the abutting portion abuts against the elastic arm, the elastic arm is provided with a second position, the second position is far away from the slot relative to the first position, and the first elastic arm located at the second position is obliquely arranged along the direction of far away from the slot.
2. The electrical connector of claim 1, wherein: the elastic arm is provided with a bending part for connecting the first elastic arm and the second elastic arm, and the bending part bends towards the butt joint piece and has a gap with the butt joint part.
3. The electrical connector of claim 1, wherein: the electric connector is arranged on a circuit board, a welding part is integrally extended from the abutting part, the welding part is provided with a welding groove, the welding groove is used for welding and fixing the abutting part on the circuit board, each terminal is provided with a welding leg, the welding leg is used for welding and fixing the terminal on the circuit board, and the welding groove and the plurality of welding legs are arranged in a coplanar manner.
4. The electrical connector of claim 3, wherein: at least one of the welding feet is overlapped with the projection of the welding part in the front-back direction and is flush with the surface of the circuit board.
5. The electrical connector of claim 1, wherein: the lock catch piece is provided with a base, the first elastic arm extends from the base, the slot is formed by being recessed from front to back, the insulating body is further provided with a through hole penetrating through the front and back and located at one end of the slot in the longitudinal direction, the base is accommodated and fixed in the through hole, and the front end and the back end of the base are respectively exposed at the front and back of the insulating body.
6. The electrical connector of claim 5, wherein: the through hole has a step portion, the base portion has a hook portion and a groove of stepping down, the groove of stepping down steps portion, hook portion is located step portion's rear and with step portion cooperation is fixed for it is spacing in the front and back direction the hasp piece.
7. The electrical connector of claim 1, wherein: the insulating body defines a front and back direction perpendicular to the longitudinal direction, the electric connector is provided with an inner side and an outer side in the longitudinal direction, the inner side is close to the slot direction, the outer side is far away from the slot direction, the abutting part is positioned at the inner side of the elastic arm, the elastic arm extends towards the inner side to exceed the abutting part, and the elastic arm extends forwards to exceed the abutting part.
8. The electrical connector of claim 7, wherein: extend a spacing portion from the elastic arm orientation inboard, just spacing portion is located the inboard of butt portion for prevent the hasp piece orientation the outside is out of shape too greatly.
9. The electrical connector of claim 7, wherein: the lock catch piece extends a turnover part, the abutting part is provided with a first end and a second end which are oppositely arranged in the front and the back, the first end abuts against the elastic arm, and the second end is connected with the turnover part.
10. The electrical connector of claim 9, wherein: a welding part and a holding part extend from the abutting part, the welding part is positioned in front of the holding part, the welding part is close to the first end relative to the center of the abutting part, and the holding part is close to the second end relative to the center of the abutting part.
11. The electrical connector of claim 9, wherein: the lock catch piece, the abutting part and the folding part are formed by integrally punching and forming a metal plate.
12. The electrical connector of claim 1, wherein: the electric connector is a card edge connector, the butt joint piece is an electronic card, the two locking pieces are positioned at two ends of the slot in the longitudinal direction, each locking piece is provided with a clamping part for elastically clamping the butt joint piece, the two abutting parts are positioned between the two locking pieces, the butt joint piece is positioned between the two abutting parts, and the abutting parts and the butt joint piece have gaps.
13. The electrical connector of claim 12, wherein: the two abutting parts abut against the two corresponding elastic arms respectively, and the distance between the two second positions in the longitudinal direction is larger than the distance between the two first positions in the longitudinal direction.
14. The electrical connector of claim 1, wherein: the elastic arm is provided with a convex rib, and the convex rib and the abutting part are oppositely arranged.
15. A method of making a fastening device for fastening an electronic card, the method comprising:
stamping a metal plate to form a locking piece and an abutting part positioned above the locking piece, wherein a folding part is connected with the locking piece and the abutting part;
defining a vertical plane to be coplanar with the metal plate;
bending the locking piece to enable the locking piece to be provided with a first elastic arm which is coplanar with the vertical surface, a second elastic arm which is obliquely arranged with the vertical surface, and a bending part which is connected with the first elastic arm and the second elastic arm;
then the turnover part is turned downwards, so that the abutting part is turned over together until the abutting part abuts against the second elastic arm;
the abutting part abuts against the second elastic arm to enable the lock catch piece to generate displacement, and the first elastic arm and the vertical surface are obliquely arranged.
16. The method of making a fixture according to claim 15, wherein: the two fixing devices are fixed on an insulating body, the insulating body is provided with a slot which is arranged between the two fixing devices in a lengthwise mode, the slot is used for abutting the electronic card, and the first elastic arm which is arranged in an inclined mode with the vertical surface is far away from the slot relative to the vertical surface.
17. The method of making a fixture according to claim 15, wherein: the second elastic arm is connected with the abutting part in a butting mode, the abutting part is provided with a pressed point, the pressed point and the turnover part are arranged oppositely, the bending part is located between the pressed point and the turnover part, a gap is formed between the lock catch piece and the abutting part, the turnover part is connected with the bending part, the gap is increased from small to small, and the gap is decreased from large to small from the bending part to the pressed point.
18. The method of making a fixture according to claim 15, wherein: the lock catch piece is provided with a convex rib, the convex rib extends from the first elastic arm to the second elastic arm, and the convex rib and the abutting part are oppositely arranged.
19. The method of making a fixture according to claim 15, wherein: the electronic card is provided with a fixing hole and a groove, a fixing part extends from the abutting part, a buckling part extends from the tail end of the second elastic arm, the fixing part enters the fixing hole, the buckling part enters the groove, and at least part of the buckling part is higher than the fixing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810159016.5A CN108493648B (en) | 2018-02-07 | 2018-02-07 | Electrical connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810159016.5A CN108493648B (en) | 2018-02-07 | 2018-02-07 | Electrical connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108493648A CN108493648A (en) | 2018-09-04 |
| CN108493648B true CN108493648B (en) | 2019-12-31 |
Family
ID=63340524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810159016.5A Active CN108493648B (en) | 2018-02-07 | 2018-02-07 | Electrical connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108493648B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7182064B2 (en) * | 2019-06-17 | 2022-12-02 | 株式会社オートネットワーク技術研究所 | connector |
| CN114883836A (en) * | 2022-05-05 | 2022-08-09 | 东莞立德精密工业有限公司 | Card edge connector |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4141371B2 (en) * | 2003-10-28 | 2008-08-27 | アルプス電気株式会社 | Card connector device |
| CN201311988Y (en) * | 2008-11-26 | 2009-09-16 | 宏致电子股份有限公司 | Locking plate structure of card connector |
| CN201629425U (en) * | 2010-03-18 | 2010-11-10 | 美国莫列斯股份有限公司 | Electrical connection device |
| CN202068032U (en) * | 2011-03-29 | 2011-12-07 | 番禺得意精密电子工业有限公司 | Card edge connector |
| CN204760663U (en) * | 2015-07-01 | 2015-11-11 | 昆山宏泽电子有限公司 | Low clearance card edge connector's ear clip structure |
| CN206610926U (en) * | 2016-08-31 | 2017-11-03 | 泰科电子(上海)有限公司 | Connector |
-
2018
- 2018-02-07 CN CN201810159016.5A patent/CN108493648B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108493648A (en) | 2018-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9847604B2 (en) | Electrical connector having improved shielding structure | |
| US8092232B2 (en) | Board-to-board connector | |
| TWI758905B (en) | Connector assembly | |
| US8083527B2 (en) | Board-to-board connector | |
| JP5603790B2 (en) | Floating connector | |
| US7077678B1 (en) | Electrical connector assembly having board hold down | |
| JP5757794B2 (en) | Multi-pole connector | |
| US9735486B1 (en) | Electrical connector | |
| US20120142226A1 (en) | Terminal for electrical connection and connector using same | |
| US20210305751A1 (en) | Electrical connection device and terminal | |
| JP2007165194A (en) | Connector | |
| US20090318029A1 (en) | Board-to-board connector for mounting on a circuit board | |
| EP3540862B1 (en) | Connector | |
| US10680361B2 (en) | Card edge connector | |
| US10553980B2 (en) | Movable connector | |
| JP4910201B2 (en) | Connector lock device | |
| JP2019071184A (en) | connector | |
| JP2017117734A (en) | connector | |
| CN108493648B (en) | Electrical connector | |
| US10763617B2 (en) | Movable connector | |
| US6287129B1 (en) | Card connector assembly | |
| US6939166B2 (en) | Electrical connector connecting with cables | |
| CN210866579U (en) | Electrical connector | |
| CN110061391B (en) | Electrical connector | |
| US6186833B1 (en) | Hybrid connector with audio jack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |