CN214379098U - Card edge connector and fastener thereof - Google Patents

Abstract

The utility model discloses a card edge connector and detain and hold piece thereof. The card edge connector comprises an insulating shell, a plurality of conductive terminals mounted on the insulating shell and a buckling piece arranged on the insulating shell. The insulating shell is concavely provided with an inserting slot and a fixing slot. The fixing groove is positioned on one side of the card slot. A plurality of conductive terminals are mounted in the card slot. The buckling and holding piece comprises a supporting part, an inserting part and a buckling and holding part, wherein the inserting part and the buckling and holding part are formed by extending from the supporting part. The inserting parts are inserted into the fixing grooves and are in interference fit with each other. The inserting part and the buckling part are respectively positioned at two opposite sides of the supporting part. When the card edge connector receives an electronic card through the card slot, the buckling part can be pressed by the electronic card to swing so as to be buckled at one side part of the electronic card. Accordingly, the card edge connector can prevent the electronic card from loosening.

Description

Card edge connector and fastener thereof

Technical Field

The present invention relates to a connector, and more particularly to a card edge connector and a retainer thereof.

Background

When the conventional card edge connector receives an electronic card, the electrical reliability between the two is an important issue of the conventional card edge connector. However, the architecture of the conventional card edge connector has been gradually limited by the existing design framework, so that the architecture of the conventional card edge connector is difficult to be further improved.

Therefore, in the present application, the above-mentioned defects can be improved, and the present invention is provided to effectively improve the above-mentioned defects with reasonable design in cooperation with the application of scientific principles.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a card edge connector and fastener thereof is provided to prior art not enough.

The embodiment of the utility model discloses card edge connector, it includes: the insulating shell is long and is defined with a length direction, a card slot is arranged along the length direction of the insulating shell, a fixing groove is concavely arranged along a width direction vertical to the length direction of the insulating shell, and the fixing groove is positioned on one side of the card slot; the conductive terminals are arranged in the card inserting grooves of the insulating shell; and a retainer comprising: a supporting portion; the plug-in part is formed by extending from the supporting part, and the plug-in part is inserted into the fixing groove along the width direction and is in interference fit with each other; the buckling part is formed by extending from the supporting part, and the inserting part and the buckling part are respectively positioned at two opposite sides of the supporting part; when the card edge connector receives an electronic card through the card slot, the buckling part can be pressed by the electronic card to swing so as to be buckled on one side part of the electronic card along the width direction.

Preferably, the insertion part includes a block body and two support arms connected to the block body, the fixing groove includes a notch and two channels connected to the notch, the two support arms are respectively inserted into the two channels, and the block body is accommodated in the notch.

Preferably, the insertion part includes a block body and at least one support arm connected to the block body and having a plate shape, the fixing groove includes a notch and at least one channel communicated with the notch, the at least one support arm is inserted into the at least one channel, and the block body is accommodated in the notch.

Preferably, the insertion part is formed with at least one projection facing the support part on any one of the support arms, and the at least one projection on any one of the support arms is in interference fit with the corresponding channel.

Preferably, the insulation shell is formed with a positioning opening at a corner adjacent to the fixing groove, the supporting portion is formed with a positioning fastening point far away from the fastening portion, and the positioning fastening point is fastened in the positioning opening.

Preferably, the supporting portion abuts against an outer side of the fixing groove, the supporting portion is U-shaped and forms a gap, and the gap is located on an extending path of the card slot in the length direction for receiving a portion of the electronic card.

Preferably, the insulating housing defines a bisection plane perpendicular to the width direction, and the plurality of conductive terminals are arranged in mirror symmetry corresponding to the bisection plane; the buckling part comprises a protrusion on the bisecting plane for penetrating into the side part of the electronic card.

Preferably, the locking member includes an unlocking portion, and the unlocking portion is formed by extending from the locking portion in a direction away from the protrusion.

Preferably, the unlocking part and the locking part form an included angle between 115 degrees and 125 degrees, the locking piece is provided with a reinforcing rib at the inner side part of the locking part and the unlocking part corresponding to the included angle, and the reinforcing rib extends from the locking part to the unlocking part.

Preferably, the number of the latching members included in the card edge connector is further limited to two, the number of the fixing grooves included in the insulating housing is further limited to two, the two fixing grooves are respectively located at two opposite sides of the card insertion groove, the two fixing grooves are recessed in the same direction or different directions along the width direction, and the insertion parts of the two latching members are respectively inserted into the two fixing grooves along the width direction.

The embodiment of the utility model provides a also disclose a card edge connector's knot and hold piece, it is used for installing at an insulation casing, and the knot holds the piece and includes: a supporting portion; the plug part is formed by extending from the supporting part and is inserted into the insulating shell along the width direction of the insulating shell so as to enable the plug part to be in interference fit with the insulating shell; and the buckling and holding part is formed by extending from the supporting part, and the inserted part and the buckling and holding part are respectively positioned at two opposite sides of the supporting part.

To sum up, the embodiment of the present invention provides a card edge connector and a latch thereof, which can be fixed on an insulating housing by using an insertion portion and a fixing groove of the latch to form an interference fit with each other. In addition, when the card edge connector receives the electronic card through the card slot, the buckling part can be pressed by the electronic card to swing so as to be buckled and connected to one side part of the electronic card along the width direction, thereby realizing the technical effect of preventing the electronic card from loosening.

For a further understanding of the nature and technical content of the invention, reference should be made to the following detailed description and accompanying drawings, which are provided for illustration only and are not intended to limit the scope of the invention.

Drawings

Fig. 1 is a perspective view of a card edge connector according to a first embodiment of the present invention.

Fig. 2 is a perspective view of another view of the card edge connector according to the first embodiment of the present invention.

Fig. 3 is a side view of fig. 1.

Fig. 4 is a partially enlarged schematic view of the insulating housing and the fastening member according to the first embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view of fig. 3 taken along the line V-V.

Fig. 6 is an exploded view of the fastening member and the grounding plate according to the first embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view of fig. 3 taken along section line VII-VII.

Fig. 8 is a schematic cross-sectional view of fig. 3 taken along line VIII-VIII.

Fig. 9 is an exploded perspective view of the card edge connector, the electronic card and the circuit board according to the first embodiment of the present invention.

Fig. 10 is a perspective view illustrating the assembly of the card edge connector, the electronic card and the circuit board according to the first embodiment of the present invention.

Fig. 11 is a partially enlarged schematic view of an insulating housing and a fastening member according to another embodiment of the first embodiment of the present invention.

Fig. 12 is a partially enlarged schematic view of an insulating housing and a retainer according to still another embodiment of the first embodiment of the present invention.

Fig. 13 is a partially enlarged schematic view of an insulating housing and a fastening member according to still another embodiment of the first embodiment of the present invention.

Fig. 14 is an exploded view of a card edge connector according to a second embodiment of the present invention.

Fig. 15 is an exploded view of a card edge connector according to another embodiment of the second embodiment of the present invention.

Detailed Description

The embodiments disclosed in the present invention are described below with reference to specific embodiments, and those skilled in the art can understand the advantages and effects of the present invention from the disclosure in the present specification. The utility model discloses the concrete embodiment of accessible other differences is implemented or is used, and each item detail in this specification also can be based on different viewpoints and application, does not deviate from the utility model discloses a carry out various modifications and changes under the design. The drawings of the present invention are merely schematic illustrations, and are not drawn to scale, but are described in advance. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.

It will be understood that, although the terms "first," "second," "third," etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are used primarily to distinguish one element from another element or from one signal to another signal. In addition, the term "or" as used herein should be taken to include any one or combination of more of the associated listed items as the case may be. Furthermore, the term "electrically coupled", as used herein, refers to one of "indirectly electrically connected" and "directly electrically connected".

[ first embodiment ]

Referring to fig. 1 to 13, the present embodiment discloses a card edge connector 100A for being mounted on a circuit board 300 (e.g., a PCB) for plugging an electronic card 200 (see fig. 10). It should be noted that, in the embodiment, the card edge connector 100A is illustrated as a vertical connector (vertical connector), but the invention is not limited thereto. For example, in other embodiments not shown in the present disclosure, the card edge connector 100A may also be a right angle connector (right angle connector).

As shown in fig. 1 to 3, the card edge connector 100A includes an insulating housing 1A, a plurality of conductive terminals 2 arranged in at least one row in the insulating housing 1A, a retaining member 3A mounted on the insulating housing 1A, and two grounding strips 4 mounted on the insulating housing 1A and the retaining member 3A, respectively. It should be noted that, although the above-mentioned buckling member 3A is described as being matched with the insulating housing 1A and the plurality of conductive terminals 2 in the embodiment, the present invention is not limited thereto. For example, in other embodiments of the present invention, which are not shown, the retainer 3A can be used alone (e.g., sold) or with other components. Next, the configuration and connection relationship of the respective components of the card edge connector 100A will be described below.

The insulating housing 1A is elongated (substantially rectangular parallelepiped) in the present embodiment. For convenience of describing the structure and connection relationship of the components of the insulating housing 1A of the present embodiment, the insulating housing 1A further defines a length direction D1, a width direction D2 perpendicular to the length direction D1, and a height direction D3 perpendicular to the length direction D1 and the width direction D2.

As shown in fig. 1, fig. 2, and fig. 4, the insulating housing 1A in this embodiment includes a plugging side surface 14 and an assembling side surface 15 which are opposite to each other, and a setting end surface 16 connecting the plugging side surface 14 and the assembling side surface 15, and the plugging side surface 14, the assembling side surface 15, and the setting end surface 16 are all outer surfaces of the insulating housing 1A. The plugging side 14 is located at one side of the insulating housing 1A, and the side of the insulating housing 1A can be defined as the top side (upper side as viewed in fig. 1) of the insulating housing 1A.

In addition, the insulating housing 1A is recessed from the plugging side 14 (along the height direction D3 and toward the assembling side 15) to form a card slot 11, and the card slot 11 is disposed along the length direction D1 and can be used to receive the electronic card 200 (as shown in fig. 9 and 10) inserted and butted along the height direction D3. The assembling side 15 is located on the other side of the insulating housing 1A, the other side of the insulating housing 1A is defined as a bottom side (lower side as shown in fig. 2) of the insulating housing 1A and is opposite to the plugging side 14, and the insulating housing 1A is formed with a plurality of terminal grooves 13 recessed from the assembling side 15 (along the height direction D3 and toward the plugging side 14), and the plurality of terminal grooves 13 are communicated with the plugging groove 11.

Referring to fig. 4, the installation end face 16 is located between the top side and the bottom side of the insulating housing 1A, the location of the installation end face 16 may be defined as a side (i.e., the left side in fig. 2) of the insulating housing 1A, and the insulating housing 1A is recessed with a fixing groove 12 along the width direction D2 at the installation end face 16, i.e., the fixing groove 12 is located at one side of the card slot 11. The fixing groove 12 includes a notch 121 and at least one passage 122 connected to the notch, where the number of the at least one passage 122 is two passages 122, the notch 121 and the two passages 122 are disposed substantially along the width direction D2, and the two passages 122 each have an inlet on one side facing the notch 121 to connect to the notch 121.

Furthermore, in the present embodiment, the insulation casing 1A is further formed with a positioning opening 123 at a corner adjacent to the fixing groove 12, the positioning opening 123 is located at a side of the insulation casing 1A away from the unfilled corner 121, and further, the positioning opening 123 may also be located at a side surface or a side edge of the insulation casing 1A away from the unfilled corner 121, that is, the positions of the positioning opening 123 and the inlets of the two channels 122 are opposite to each other, but the present invention is not limited to the embodiment.

It should be noted that the insulating housing 1A has a stop block 17 formed from the outer edge of the fixing groove 12 and located in the notch 121, and the stop block 17 is disposed along the width direction D2 and aligned with the assembly side 15 and a side of the insulating housing 1A away from the positioning opening 123, so that the stop block 17 can block the portion (called solder foot) of the plurality of conductive terminals 2 for soldering to the circuit board 300. Preferably, the thickness of the stopper 17 along the height direction D3 is preferably not less than 1 millimeter (mm) to ensure that the stopper 17 is not easily deformed.

As shown in fig. 1, 5 and 7, the plurality of conductive terminals 2 are installed and embedded in the card slot 11 of the insulating housing 1A in the present embodiment, and the plurality of conductive terminals 2 are further respectively inserted in the plurality of terminal slots 13 and arranged in two rows, where the position of any row of conductive terminals 2 is respectively corresponding to the position of the other row of conductive terminals 2, that is, when the insulating housing 1A defines a bisection plane PL perpendicular to the width direction D2, the conductive terminals 2 in the two rows are arranged in mirror symmetry with each other corresponding to the bisection plane PL.

Since fig. 5 and 7 are schematic cross-sectional views of the insulating housing 1A, the plane of bisection PL is shown by a straight line (the center line of the insulating housing 1A). Of course, the above-mentioned bisecting plane PL can also be understood as assuming that when the electronic card 200 is regarded as a sheet-like structure, the position where the electronic card 200 is inserted into the card slot 11 is the bisecting plane PL, but the present invention is not limited thereto.

In addition, one end of each conductive terminal 2 is located in the card slot 11 and can be used for electrically coupling with the electronic card 200; the other end of each conductive terminal 2 is exposed outside the insulating housing 1A from the terminal slot 13 and can be used to be soldered on the circuit board 300. In addition, the plurality of conductive terminals 2 may define at least one of a signal terminal, a ground terminal, and a power terminal according to a function; or a plurality of conductive terminals 2 may also form the structure of the terminal module.

Referring to fig. 4 and 6, the latching member 3A includes a supporting portion 31, an inserting portion 32 and a latching portion 33, and the inserting portion 32 and the latching portion 33 are respectively formed by extending from the supporting portion 31. The supporting portion 31 is substantially U-shaped (as shown in fig. 6) and abuts against the outer side of the fixing groove 12, and the supporting portion 31 includes a connecting block 311, and a first column block 312 and a second column block 313 connecting the connecting block 311. Wherein, when the retainer 3A is inserted into the fixing groove 12, the first column block 312 is adjacent to the positioning opening 123, and the second column block 313 is adjacent to the inlets of the two channels 122.

Further, the connecting block 311 is recessed with a receiving groove 3111 along the height direction D3 (bottom edge), and the receiving groove 3111 is opposite to the receiving groove 11 in this embodiment. The first column block 312 and the second column block 313 may be connected to opposite ends of the connecting block 311, respectively, that is, the first column block 312 and the second column block 313 are disposed at an interval in the embodiment and the extending direction thereof is parallel to the height direction D3, so that the supporting portion 31 can form a gap G1 between the first column block 312 and the second column block 313 along the height direction D3. In addition, the gap G1 is located on an extension path of the card slot 11 along the length direction D1 (as shown in fig. 1), so that when the electronic card 200 is inserted into the card slot 11 along the height direction D3, the gap G1 is used to receive a portion of the electronic card 200 (as shown in fig. 10).

It should be noted that the supporting portion 31 is further formed with a positioning fastening point 314 away from the fastening portion 33, and the positioning fastening point 314 is located on a side of the first pillar block 312 facing the positioning opening 123. When the fastener 3A is mounted on the insulating housing 1A, the positioning locking point 314 can be locked on the positioning opening 123 (as shown in fig. 7), so as to ensure the stability and reliability of the mounting of the fastener 3A on the insulating housing 1A. Of course, the positioning fastening points 314 and the positioning openings 123 can be adjusted according to the needs of the designer, for example: the positioning positions or the number of the positioning locking points 314 and the positioning openings 123 (such as the clasps 3B and the insulating housing 1B shown in fig. 11) are adjusted.

Referring to fig. 4, 7, and 8, the insertion portion 32 is located on one side of the connection block 311 facing the setting end face 16, and the insertion portions 32 can be inserted into the fixing groove 12 along the width direction D2 and are in interference fit with each other, so that the fastening member 3A is fixed on the insulating housing 1A. In the embodiment, the inserting portion 32 includes a block 321 and at least one supporting arm 322 connected to the block 321, at least one protrusion 3221 facing the supporting portion 31 is formed on any supporting arm 322 of the inserting portion 32, and the at least one protrusion 3221 located on any supporting arm 322 is in interference fit with the corresponding channel 122. The number of arms 322 of the plug part 32 may correspond to the number of channels 122 of the fixation groove 12; here, taking the number of the supporting arms 322 as two supporting arms 322 as an example, the two supporting arms 322 are respectively plate-shaped structures and have a plurality of protrusions 3221 formed thereon facing the supporting portion 31. When the two support arms 322 are inserted into the two passages 122, the protrusions 3221 of the support arms 322 are in interference fit with the corresponding passages 122, and the block 321 is accommodated in the notch 121.

Preferably, as shown in fig. 2 and 4, the insertion part 32 and the second column 313 are disposed at an interval, that is, the fastening member 3A forms an opening G2 disposed along the height direction D3 between the insertion part 32 and the second column 313, and the opening G2 can provide stress to the insertion part 32 and the second column 313 to disperse the stress, so as to avoid the stress concentration to cause the fracture, but the invention is not limited thereto.

It should be noted that, although the number of the arms 322 of the retaining member 3A and the number of the channels 122 of the fixing groove 12 are two in the present embodiment, the number of the arms 322 and the channels 122 may be sufficient to actually fix the retaining member 3A and the insulating housing 1A to each other. For example, the designer can design the number of the supporting arms 322 of the retaining member 3A and the number of the passages 122 of the fixing groove 12 to be one (the retaining member 3C and the insulating housing 1C shown in fig. 12) or more than two (the retaining member 3D and the insulating housing 1D shown in fig. 13), i.e. the number of the supporting arms 322 of the retaining member 3A and the number of the passages 122 of the fixing groove 12 are at least one, respectively, according to the design requirement.

Further, as shown in fig. 12, the inserting portion 32 of the fastening member 3C includes a supporting arm 322, and the supporting arm 322 of the fastening member 3C has a plate or sheet structure, and the volume of the supporting arm 322 of the fastening member 3C may be greater than or equal to the volume of one or both of the supporting arms 322 of the fastening member 3A, the fixing groove 12 of the insulating housing 1C includes a channel 122, and the channel 122 of the fixing groove 12 may have a shape or size corresponding to the shape or size of the supporting arm 322 capable of receiving the fastening member 3C.

In another embodiment, as shown in fig. 1, 12 and 13, when the fastening member 3A, the fastening member 3C or the fastening member 3D is inserted into the fixing groove 12 of the insulating housing 1C, the fixing groove 12 may include a channel 122 and the shape or size of the channel 122 may be the shape or size of the two arms 322 capable of accommodating the fastening member 3A, or the channel 122 may be the shape or size of the two, three or more arms 322 capable of accommodating the fastening member 3C or the fastening member 3D (not shown).

Referring to fig. 4, 6, and 10, the latching portion 33 is located on a side of the second column block 313 away from the end face 16, that is, the latching portion 33 and the inserting portion 32 are respectively located on two opposite sides of the supporting portion 31, and the latching portion 33 is away from the positioning locking point 314. When the card slot 11 receives the electronic card 200, the latching portion 33 is pressed by the electronic card 200 to swing, and further, is latched to a side portion of the electronic card 200 along the width direction D2. It should be noted that, in the present embodiment, the side portion of the electronic card 200 is a notch 210 far away from the insulating housing 1A, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the side portion of the electronic card 200 may be a through hole.

Specifically, as shown in fig. 9 and 10, the retaining portion 33 is an elongated structure in the present embodiment and is located on the extending path of the card slot 11. The latching portion 33 includes a protrusion 331 formed on a side surface facing the first column block 312 and located on the bisecting plane PL, the protrusion 331 can be used to penetrate into the notch 210, which is a side portion of the electronic card 200, so that the protrusion 331 can abut against an inner edge of the notch 210, thereby limiting the movement of the electronic card 200 along the height direction D3.

Further, referring to fig. 4 and 7, the latching member 3A further includes an unlocking portion 34, and the unlocking portion 34 is formed by extending from the latching portion 33 toward a direction away from the protrusion 331, and an included angle θ between the unlocking portion 34 and the latching portion 33 is 115 degrees to 125 degrees, so that a user can operate the unlocking portion 34 to swing the latching portion 33 along the width direction D2 to make the protrusion 331 away from the notch 210, so that the latching member 3A no longer restricts the movement of the electronic card 200 along the height direction D3.

Preferably, in order to ensure the structural strength between the unlocking portion 34 and the locking portion 33, the locking member 3A further has a reinforcing rib 35 formed at an inner portion of the locking portion 33 and the unlocking portion 34 corresponding to the included angle θ, and the reinforcing rib 35 extends from the locking portion 33 to the unlocking portion 34, so as to reinforce the structural strength of the locking member 3A and reduce the risk of breakage when the unlocking portion 34 is operated.

Referring to fig. 2 and 6 again, one of the two grounding strips 4 is inserted into a side of the insulating housing 1A away from the card slot 11 along the height direction D3, and the other grounding strip 4 is inserted into the receiving slot 3111 of the supporting portion 31 along the height direction D3, and a portion of the two grounding strips 4 is exposed outside the insulating housing 1A, so that the two grounding strips 4 can be used for grounding.

[ second embodiment ]

As shown in fig. 14 and fig. 15, for a second embodiment of the present invention, a card edge connector 100B of the present embodiment is similar to the card edge connector 100A of the above embodiment, and the same points of the two embodiments are not repeated, but the difference of the present embodiment compared with the first embodiment of the card edge connector 100A mainly lies in: in this embodiment, the number of the latches of the card edge connector is two, and each of the two sides of the insulating housing has at least one channel, and here, each of the two channels is taken as an example.

Specifically, the insulating housing 1A ' has two opposite end faces 16, the two end faces 16 are respectively connected to the plugging side 14 and the assembling side 15, that is, the two end faces 16 are respectively located between the top side and the bottom side of the insulating housing 1A, and the positions of the two end faces 16 can be defined as two opposite side sides of the insulating housing 1A ', that is, the positions of the two end faces 16 are the left side and the right side of the insulating housing 1A '. The insulating housing 1A is recessed with the fixing grooves 12 on the two end faces 16, and the two fixing grooves 12 are located on two opposite sides of the card slot 11, respectively, the inlets of the two passages 122 on any one fixing groove 12 and the inlets of the two passages 122 on the other fixing groove 12 can be oriented in the same direction (as shown in fig. 14) or opposite directions (as shown in fig. 15) along the width direction D2, that is, the two fixing grooves 12 are recessed in the same direction or different directions along the width direction D2, so that the two clasps 3A, 3A' can be respectively inserted into the two fixing grooves 12 along the width direction D2 through the insertion portions 32 thereof and are in interference fit with each other.

Of course, two fixing grooves 12 recessed in the same direction can be understood as follows: when the entrances of the two passages 122 of the two fixing grooves 12 face in the same direction (as shown in fig. 14), the two passages 122 of the two fixing grooves 12 are regarded as facing toward the same side surface, so that the insertion parts 32 of the two retainers 3A, 3A 'can be inserted into the same side surface of the insulating housing 1A' along the width direction D2. Furthermore, the entrances of the two passages 122 of the two fixing grooves 12 may be directed in opposite directions as shown in fig. 15, and the two passages 122 of the two fixing grooves 12 are regarded as being directed toward the opposite side surfaces, so that the insertion parts 32 of the two retainers 3A, 3A 'can be inserted into the opposite side surfaces of the insulating housing 1A' in the width direction D2, that is, the fixing grooves 12 are recessed in different directions or in opposite directions from each other.

[ technical effects of the embodiments of the present invention ]

To sum up, the embodiment of the present invention provides a card edge connector and a latch thereof, which can be fixed on an insulating housing by using an insertion portion and a fixing groove of the latch to form an interference fit with each other. In addition, when the card edge connector receives the electronic card through the card slot, the buckling part can be pressed by the electronic card to swing so as to be buckled and connected to one side part of the electronic card along the width direction, thereby realizing the technical effect of preventing the electronic card from loosening.

The above description is only a preferred and feasible embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent changes and modifications made according to the scope of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims (11)

1. An edge connector, comprising:

the insulation shell is long and is defined with a length direction, a card slot is arranged along the length direction of the insulation shell, a fixing groove is concavely arranged along a width direction vertical to the length direction of the insulation shell, and the fixing groove is positioned on one side of the card slot;

a plurality of conductive terminals mounted in the card insertion slot of the insulating housing; and

a fastener, comprising:

a supporting portion;

the inserting part is formed by extending from the supporting part, is inserted into the fixing groove along the width direction and is in interference fit with each other; and

the buckling part is formed by extending from the supporting part, and the inserting part and the buckling part are respectively positioned at two opposite sides of the supporting part;

when the card edge connector receives an electronic card through the card slot, the buckling part can be pressed by the electronic card to swing, and then is buckled at one side part of the electronic card along the width direction.

2. The card edge connector as claimed in claim 1, wherein the insertion portion comprises a block and two arms connected to the block, the fixing groove comprises a notch and two channels connected to the notch, the two arms are respectively inserted into the two channels, and the block is received in the notch.

3. The card edge connector as claimed in claim 1, wherein the insertion portion comprises a block and at least one arm connected to the block and having a plate shape, the fixing groove comprises a notch and at least one channel connected to the notch, at least one arm is inserted into at least one of the channels, and the block is received in the notch.

4. The card edge connector as claimed in claim 2 or 3, wherein the insertion part is formed with at least one projection facing the support part at any one of the arms, and at least one projection at any one of the arms is in interference fit with the corresponding channel.

5. The card edge connector according to claim 1, wherein the insulating housing is formed with a positioning opening at one corner adjacent to the fixing groove, the supporting portion is formed with a positioning click away from the latching portion, and the positioning click is latched to the positioning opening.

6. The card edge connector as claimed in claim 1, wherein the supporting portion abuts against an outer side of the fixing groove, the supporting portion is U-shaped and has a notch formed therein, and the notch is located on an extending path of the card slot in the length direction for receiving a portion of the electronic card.

7. The card edge connector according to claim 1, wherein the insulative housing defines a bisecting plane perpendicular to the width direction, and the plurality of conductive terminals are arranged in mirror symmetry corresponding to the bisecting plane; the buckling part comprises a protrusion positioned on the bisecting plane and used for penetrating into the side part of the electronic card.

8. The card edge connector as claimed in claim 7, wherein the latching member includes an unlocking portion, and the unlocking portion is formed to extend from the latching portion in a direction away from the protrusion.

9. The card edge connector as claimed in claim 8, wherein the unlocking portion and the latching portion have an included angle of 115 degrees to 125 degrees, the latching member has a reinforcing rib formed at an inner portion of the latching portion and the unlocking portion corresponding to the included angle, and the reinforcing rib extends from the latching portion to the unlocking portion.

10. The card edge connector according to claim 1, wherein the number of the latching members included in the card edge connector is further limited to two, the number of the fixing grooves included in the insulating housing is further limited to two, the two fixing grooves are respectively located at two opposite sides of the card insertion groove, and the two fixing grooves are recessed in the same direction or in different directions along the width direction, and the insertion portions of the two latching members are respectively inserted into the two fixing grooves along the width direction.

11. A latch for a card edge connector, the latch being adapted to be mounted on an insulative housing, the latch comprising:

a supporting portion;

the plug part is formed by extending from the supporting part and is used for being inserted into the insulating shell along the width direction of the insulating shell so as to enable the plug part to be in interference fit with the insulating shell; and

the buckling part is formed by extending from the supporting part, and the inserting part and the buckling part are respectively positioned at two opposite sides of the supporting part.

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