TWI459656B - Card edge connector - Google Patents

Description

Card edge connector

This invention relates to an electrical connector, and more particularly to a card edge connector.

The card edge connector is a connection interface currently used on a motherboard of an electronic device, and is used for inserting a expansion component having a circuit board such as a memory module or an interface card, and is electrically connected to the host as the expansion component. The intermediate medium of the board, in turn, expands the function or performance of the electronic device.

A common card edge connector generally includes an elongated insulative housing and two latching arms. The insulative housing has a slot extending along a longitudinal direction thereof, and the two latching arms are respectively connected along a long side of the insulative housing. On one side of the insulative housing, one end of the latching arm is pivotally connected to the insulative housing, and the other end of the latching arm is reciprocally swingable relative to the insulative housing, and on the side of the slot of the second latching arm opposite the insulative housing A bump is formed separately.

In application, the opposite side edges of the circuit board of the expansion component respectively have a notch, and the notch is formed at a position corresponding to the bump of the two fastening arms. Therefore, when the circuit board of the expansion component is inserted into the slot of the insulative housing, the two latching arms can be swung and brought closer to the circuit board, so that the two latching arms are respectively fastened to the circuit board by the bumps. In the side of the notch, the expansion element is clamped and fixed to the insulative body.

However, in this type of card edge connector, since the rotation of the two latching arms is used to achieve the function of clamping and fixing the expansion component, it is necessary to be in the card inside the electronic device or on the motherboard thereof. The edge connector is provided with a certain distance from the peripheral area of the two holding arms, so that the two holding arms have enough space to swing, so as to be The bump of the retaining arm can be detached from the notch of the circuit board, otherwise the circuit board of the expansion component will be restricted by the two latching arms and cannot be separated from the insulating body.

Also, since such a card edge connector is required to provide sufficient operation space inside the electronic device to function, it is disadvantageous for miniaturization of the electronic device.

In view of the above problems, the present invention provides a card edge connector for solving the latching arm of the conventional card edge connector, and it is necessary to provide sufficient space for the rotary swing to be fastened to or detached from the circuit board. The usable space of a circuit board provided with a card edge connector is limited, and is not suitable for the problem of miniaturized electronic devices.

The card edge connector of the present invention comprises a body and two latching members, the body comprises a base portion and two arm portions, a slot is formed on the base portion, and the slot extends in a first direction, and the two arm portions are spaced apart in the first direction The two ends of the two arms are adjacent to the opposite ends of the slot, and the two arms are respectively formed with a groove on one side of the slot, and the groove communicates with the slot in a second direction. The two fastening members are respectively disposed on the two arm portions, and each of the fastening members has two holding portions and one elastic arm connecting the two holding portions. The second retaining segment is fixed to the arm of the body, and the elastic arm is suspended in the groove. The elastic arm has a fastening portion with respect to a side of the slot of the base, and the fastening portion is reciprocally displaceable relative to the arm in the first direction.

The effect of the invention is that the elastic arms of the two fastening members are displaced in the arm portion parallel to the longitudinal direction of the body base for engaging or releasing the expansion member, since the fastening member is at the card edge connector The body is activated, so it does not occupy the space of the external environment of the card edge connector, except that the user does not need to additionally pull and rotate The card fastener can save the internal space of the electronic product, and can directly insert the expansion component on the card edge connector or the card edge connector, thereby simplifying the assembly process of the expansion component.

The features, implementations, and utilities of the present invention are described in detail below with reference to the drawings.

Referring to FIG. 1 to FIG. 4, the card edge connector 10 disclosed in the first embodiment of the present invention includes a body 110 and two latching members 120. The body 110 is integrally formed by an insulating material. But it is not limited to this. The body 110 includes a base portion 111 and two arm portions 112. The base portion 111 can be, but is not limited to, an elongated structure having long sides and short sides. The base portion 111 is formed with a slot 1111 recessed in the surface thereof, and the slot 1111 extends in a first direction x parallel to the longitudinal direction of the base portion 111.

The two arm portions 112 of the body 110 are disposed at intervals on the base portion 111 in the first direction x to form a surface of the slot 1111 and adjacent to opposite ends of the slot 1111. Each of the arm portions 112 defines a groove 1121 adjacent to one side of the slot 1111. The groove 1121 extends toward the base portion 111 along a second direction y and communicates with the slot 1111, wherein the second direction y and the first direction The directions x cross each other, for example, the relationship between them is perpendicular or oblique to each other. Each of the arm portions 112 is disposed in the groove 1121 and has a first wall surface 1122 and a second wall surface 1123. The first wall surface 1122 is formed with two positioning holes 1124. The two positioning holes 1124 are spaced apart from each other in the second direction y. On the first wall 1122. Two positioning holes 1125 penetrating the arm portion 112 are formed on the second wall surface 1123, and the two positioning holes 1125 of the second wall surface 1123 correspond to the two positioning holes of the first wall surface 1122. 1124. In addition, the arm portion 112 further has an opening 1126 communicating with the groove 1121 and the external environment between the two positioning holes 1125.

Referring to FIG. 1 to FIG. 4 , the two latching members 120 of the card edge connector 10 disclosed in the embodiment are respectively disposed on the two arm portions 112 of the body 110 . Each of the fastening members 120 has two holding portions 121 and a resilient arm 122. The locking member 120 or at least the elastic arms 122 are made of a material having elastic restoring force, for example, a plastic, rubber or metal material. In this embodiment, the metal member integrally formed by the fastening member 120 is taken as an example, but is not limited thereto. The elastic arms 122 of the fastening member 120 are connected between the two holding segments 121, and the width of the two holding segments 121 is greater than the width of the elastic arms 122, so that the opposite ends of each of the holding segments 121 protrude from opposite sides of the elastic arms 122. side. The elastic arm 122 has two vertical segments 1221 and a fastening portion 1222. The two vertical segments 1221 are respectively connected to the two holding segments 121, and the fastening portion 1222 is connected between the two vertical segments 1221. The fastening portion 1222 can be However, it is not limited to a bending structure extending from the two vertical segments 1221 and protruding from the surface of the two vertical segments 1221, so that the surface of the fastening portion 1222 forms a guiding surface 1223, and the guiding surface 1223 may be Surface or bevel.

The latching member 120 is assembled on the arm portion 112 through the two positioning holes 1125 of the second wall surface 1123 of the arm portion 112 and the opening 1126 of the arm portion 112. The two holding portions 121 of the latching member 120 respectively pass through the second portion. Two positioning holes 1125 of the wall surface 1123, and the elastic arm 122 correspondingly passes through the opening 1126 of the arm portion 112, so that the opposite ends of the holding portion 121 of the latching member 120 are respectively embedded in the positioning hole 1124 and the second wall surface of the first wall surface 1122. The positioning hole 1125 of the 1123 is fixed to the arm portion 112, and the elastic arm 122 is connected between the two holding segments 121 in the second direction y and suspended on the arm portion. 112 is within the trench 1121. The two retaining segments 121 of the latching member 120 can be, but are not limited to, fastened in the corresponding positioning holes 1124, 1125, and the width of the elastic arm 122 of the latching member 120 is less than or equal to the body 110. The width of the groove 1121 of the arm portion 112 causes the elastic arm 122 to elastically deform in the first direction x in the groove 1121 by the elastic force of the elastic arm 122 when the external force is applied, thereby driving the engaging portion 1222 along the first portion. One direction reciprocates within the groove 1121.

In the application of the card edge connector of the present invention, the memory module is used as an expansion component combined with the card edge connector as an example, but is not limited thereto. In addition, a plurality of conductive terminals are further disposed in the base of the card edge connector for electrically connecting the card edge connector to a motherboard, as the memory module is inserted into the card edge connector, and the electrical property is The medium that is connected to the motherboard. However, since the arrangement of the conductive sub-terminals is conventional and is not a technical feature of the present invention, it will not be described again.

Referring to FIG. 1 , FIG. 3 , and FIG. 5A to FIG. 5C , the expansion device 20 has a circuit board 210 , and a notch 211 is respectively disposed on opposite sides of the circuit board 210 . When a user inserts the expansion component 20 into the card edge connector 10, the expansion component 20 is first embedded in the groove 1121 of the arm portion 112 of the body 110 by the opposite sides of the circuit board 210, and by the groove. The guide 1121 is inserted into the slot 1111 of the base 111. During this process, the opposite sides of the circuit board 210 of the expansion component 20 respectively abut the latching portions 1222 of the two latching members 120, and then, when the circuit board 210 continues to move toward the slot 1111 of the base 111, the circuit The opposite sides of the plate 20 will be pressed against the guiding surface 1223 of the engaging portion 1222, so that the circuit board 20 is guided by the guiding surface 1223 to move in the direction of the slot 1111, and the elastic arm 122 is caused. The elastic deformation is generated, and the engaging portion 1222 is displaced in the first direction x toward the bottom of the groove 1121.

After the circuit board 20 is inserted into the slot 1111 of the base portion 111, the notch 211 of the circuit board 20 opposite to the two sides corresponds to the engaging portion 1222 of the elastic arm 122. At this time, since the pressure applied to the engaging portion 1222 is released, the engaging portion 1222 can be reset by the elastic restoring force of the elastic arm 122 and embedded in the notch 211 of the circuit board 20. Therefore, the circuit board 20 is subjected to the restriction of the two latching members 120, and is not arbitrarily detached from the card edge connector 10. Similarly, when the user wants to remove the expansion element 20 from the card edge connector 10, the opposite sides of the circuit board 210 abut and press against the elastic arm during the user's withdrawal from the expansion element 20. The engaging portion 1222 of the 122 causes the engaging portion 1222 to move toward the bottom of the groove 1121 of the arm portion 112 of the body 110 again, and is separated from the notch 211 of the circuit board 210, and the opposite sides of the circuit board 210 are engaged. The guiding surface 1223 of the portion 1222 slides in the second direction y, and the expansion element 20 is disengaged from the card edge connector 10.

Based on the above, the card edge connector of the present invention achieves the restriction or release of the expansion component by the reciprocating displacement of the fastening portion of the fastening member in a direction parallel to the longitudinal edge of the base member during the insertion of the expansion member. Therefore, the user can directly insert the expansion component on the card edge connector or withdraw from the card edge connector without additionally pulling and rotating the buckle component, thereby simplifying the assembly process of the expansion component, and Since the internal space of the electronic product does not need to reserve the rotating space of the fastener, in addition to not wasting the internal space of the electronic product, it can be applied to the miniaturized electronic product, and contributes to the miniaturization of the electronic product.

Please refer to FIG. 6 and FIG. 8 for the card edge disclosed in the second embodiment of the present invention. The connector 10 includes a body 110 and two latching members 120. The body 110 includes a base portion 111 and two arm portions 112. The base portion 111 can be, but is not limited to, an elongated structure having long sides and short sides. The base portion 111 is formed with a slot 1111 recessed in the surface thereof, and the slot 1111 extends in a first direction x parallel to the longitudinal direction of the base portion 111. The two arm portions 112 of the body 110 are disposed at intervals on the base portion 111 in the first direction x to form a surface of the slot 1111 and adjacent to opposite ends of the slot 1111. Each of the arm portions 112 defines a groove 1121 adjacent to one side of the slot 1111. The groove 1121 extends toward the base portion 111 in a second direction y and communicates with the slot 1111. In addition, the arm portion 112 has a first wall surface 1122 and a second wall surface 1123 in the groove 1121. The first wall surface 1122 is formed with two positioning holes 1124. The two positioning holes 1124 are disposed at intervals along the second direction y. On a wall 1122. Two positioning holes 1125 penetrating the arm portion 112 are formed on the second wall surface 1123, and the two positioning holes 1125 of the second wall surface 1123 correspond to the two positioning holes 1124 of the first wall surface 1122. Further, the two positioning holes 1124 of the first wall surface 1122 and the two positioning holes 1125 of the second wall surface 1123 extend in the first direction x, respectively, and are exposed to the side surface of the arm portion 112 adjacent to the slot 1111.

Referring to FIG. 6 to FIG. 9 , the two latching members 120 of the card edge connector 10 are respectively disposed on the two arm portions 112 of the body 110 , and the latching member 120 can be, but not limited to, composed of a metal material. The latching member 120 has two holding sections 121 and a resilient arm 122 connected between the two holding sections 121. The opposite ends of the two holding sections 121 protrude from opposite sides of the elastic arm 122, and the surface of the elastic arm 122 is disposed. There is a fastening portion 1222. The fastening portion 1222 can be, but is not limited to, a protrusion or a dot protruding from the surface of the elastic arm 122, and the surface of the fastening portion 1222 relative to the two holding portion 121 It may be a curved surface or a beveled surface as a guiding surface 1223.

In the assembly, the fastening member 120 is inserted into the positioning hole 1124 of the first wall surface 1122 and the positioning hole 1125 of the second wall surface 1123 in a tight fit manner with the opposite ends of the holding portion 121 in the first direction x, and Moving in the first direction x to the bottom of each of the positioning holes 1124, 1125, the elastic arm 122 is coupled between the two holding segments 121 in the second direction y and suspended in the groove 1121.

Therefore, when the circuit board of the expansion component is inserted into the card edge connector 10 or extracted from the card edge connector 10, the elastic arms 122 of the two fastening components 120 will be abutted against the opposite sides of the circuit board of the expansion component. And pressing against the fastening portion 1222, forcing the elastic arm 122 to be displaced in the first direction x toward the bottom of the groove 1121 of the arm portion 112, thereby allowing the fastening portion 1222 to be embedded in the notch of the opposite sides of the circuit board, or It is detached from the gap to bond the expansion element to the card edge connector 10 or to the card edge connector 10.

In addition, in the card edge connector disclosed in the present invention, the manner in which the retaining portion of the latching member and the positioning hole of the arm portion are coupled to each other, in addition to the combination of the above-described tight fit, in other embodiments of the present invention, A stopping portion may be disposed in at least one positioning hole of the arm portion, and a limiting portion is disposed on the holding portion of the locking member corresponding to the positioning hole. The limiting portion and the stopping portion may be a combination of a bump and a groove, but is not limited thereto. For example, the limiting portion may be a bump, a bump or a rib extending from a holding portion of the fastening member. And the stop portion may be a recessed structure formed by the arm portion on the inner wall surface of the positioning hole, and vice versa, so that the retaining portion of the retaining portion and the positioning hole are stopped by the mutual cooperation of the concave-convex structure After the blocking portion is combined, the ability to move in the first direction is restricted by the blocking of the stop portion to prevent the snap member from being detached from the arm portion.

The card edge connector of the present invention is not limited to the type disclosed in the above embodiments. Those skilled in the art can change the elastic arm of the card edge connector of the present invention according to actual design requirements or usage requirements. And the structure of the buckle.

In the card edge connector of the present invention, the expansion component can be directly inserted into the card edge connector or the card edge connector during the insertion process of the expansion component without additionally pulling or rotating the buckle component. The extraction, in addition to simplifying the assembly process of the expansion components, and saving the use of the internal space of the electronic product, contributes to the miniaturization of electronic products.

Although the embodiments of the present invention are disclosed above, it is not intended to limit the present invention, and those skilled in the art, regardless of the spirit and scope of the present invention, the shapes, structures, and features described in the scope of the present application. And the number of modifications may be made, and the scope of patent protection of the present invention shall be determined by the scope of the patent application attached to the specification.

10‧‧‧ card edge connector

110‧‧‧ body

111‧‧‧ base

1111‧‧‧Slot

112‧‧‧arms

1121‧‧‧ trench

1122‧‧‧First wall

1123‧‧‧ second wall

1124‧‧‧Positioning holes

1125‧‧‧Positioning holes

1126‧‧‧ openings

120‧‧‧Card fasteners

121‧‧‧ Holding section

122‧‧‧Flexible arm

1221‧‧‧ vertical section

1222‧‧‧Deduction Department

1223‧‧‧ Guide surface

20‧‧‧Extension components

210‧‧‧ boards

211‧‧ ‧ gap

Figure 1 is an exploded perspective view of a first embodiment of the present invention.

Figure 2 is a schematic view showing the combination of the first embodiment of the present invention.

Fig. 3 is a partially enlarged schematic view of Fig. 1.

Figure 4 is a perspective view of the buckle member of the first embodiment of the present invention.

5A to 5C are schematic views showing the state of use of the first embodiment of the present invention.

Figure 6 is an exploded perspective view of a second embodiment of the present invention.

Figure 7 is a schematic cross-sectional view showing a second embodiment of the present invention.

Fig. 8 is a partially enlarged schematic view of Fig. 6.

Figure 9 is a perspective view of the buckle member of the second embodiment of the present invention.

10‧‧‧ card edge connector

110‧‧‧ body

111‧‧‧ base

1111‧‧‧Slot

112‧‧‧arms

1121‧‧‧ trench

1122‧‧‧First wall

1123‧‧‧ second wall

1124‧‧‧Positioning holes

1125‧‧‧Positioning holes

1126‧‧‧ openings

120‧‧‧Card fasteners

121‧‧‧ Holding section

122‧‧‧Flexible arm

1221‧‧‧ vertical section

1222‧‧‧Deduction Department

1223‧‧‧ Guide surface

Claims (9)

A card edge connector includes: a body, comprising: a base, the base is formed with a slot, and the slot extends along a first direction; and the two arms are spaced apart along the first direction Adjacent to the opposite ends of the slot, the two arms are respectively formed with a groove on a side surface of the slot, the groove is connected to the slot in a second direction; and two latching members are Separately disposed on the two arm portions, each of the fastening members has two holding portions and one elastic arm connecting the two holding portions. The two holding portions are fixed to the arm portion, and the elastic arm is suspended in the groove. And the elastic arm has a fastening portion with respect to a side of the slot of the base, and the fastening portion is reciprocally displaceable relative to the arm portion in the first direction. The card edge connector of claim 1, wherein the two arm portions respectively have a first wall surface and a second wall surface on opposite sides of the groove, and the first wall surface and the second wall surface respectively have two positioning holes. The two positioning holes of the first wall surface correspond to the two positioning holes of the second wall surface, and the opposite ends of the holding portions of the fastening component are respectively embedded in the first wall surface corresponding to the second wall surface. Second, the positioning hole is inside. The card edge connector of claim 2, wherein each of the positioning holes is open to the side of the two arm portions opposite to the slot, and the opposite ends of each of the holding segments are respectively embedded in the first direction The wall faces each of the positioning holes corresponding to the second wall surface. The card edge connector of claim 3, wherein the two arm portions are respectively formed with a stopper portion on an inner wall surface of one of the positioning holes, and the corresponding hole is corresponding to the positioning hole The retaining section further has a limiting portion, the limiting portion is correspondingly coupled to the stopping portion, and the stopping portion blocks the limiting portion from being displaced in the first direction. The card edge connector of claim 2, wherein the second wall mask has an opening, and the two positioning holes on the second wall surface extend through the second wall surface, and the opening is located between the second wall surface Between the holes, the resilient arm of the two latching members corresponds to the opening and is received in the groove via the opening. The card edge connector of claim 1, wherein the resilient arm is coupled between the two holding segments in the second direction. The card edge connector of claim 1, wherein the elastic arm further comprises two vertical segments, and the two vertical segments are respectively connected between the two retaining portions and the fastening portion. The card edge connector of claim 7, wherein the fastening portion has a guiding surface adjacent to opposite sides of the two vertical segments. The card edge connector of claim 1, wherein the width of the resilient arm is less than the width of the groove of the arm.