CN102882030A - Card connector - Google Patents

Abstract

The invention relates to a card connector, comprising: an insulating body, on which is provided a slot for inserting a memory card; a pair of locking parts, respectively located at two ends of the slot, the locking parts are suitable Moving between the locking position and the releasing position, each locking member has a hook; and a set of first connection terminals, wherein: the card connector further includes at least one second connection terminal pair, which is arranged on at least one of the slots Near one end, the second connection terminals of the second connection terminal pair are opposite to each other in the slot, and the hook of a locking member in the release position crosses the plane defined by the second connection terminal pair, and the hook is located at The connection terminals of the second connection terminal pair do not interfere with any connection terminal of the second connection terminal pair. With the card connector of the present invention, the space of the slot of the card connector can be effectively utilized.

Description

card connector

technical field

The invention relates to a card connector, in particular to a DDR DIMM (Dual Data Rate, Dual-Inline-Memory-Modules) connector.

Background technique

A kind of DDR3 DIMM connector 200 is shown in Fig. 1, and this connector 200 comprises: slot 201; A pair of locking parts 202 that are arranged on the two ends of slot 201, and locking parts 202 are suitable for locking memory card ( Not shown) to move between the locking position and the release position for releasing the memory card; a plurality of connection terminals 203 are arranged in the slot 201. In addition, as mentioned later, each locking member 202 has a hook that drives the memory card to disengage when the locking member is moved from the locking position to the release position. Slot 201.

FIG. 2 is an enlarged view of the end of the connector 200 in FIG. 1 . Obviously, there is an area A at the end of the connector 200, which is located between the locking member 202 and the outermost pair of connection terminals. Due to the existence of this area A, when the locking member 202 moves to the release position, there is still a distance between the hook of the locking member 202 and the pair of connecting terminals at the edge of the slot 201, so as to prevent the hook from touching the connecting terminal As a result, the connection terminal is deformed.

However, with the advancement of technology, there is a need to arrange more connection terminals in the slot under the condition that the size of the connector remains the same.

Contents of the invention

The object of the present invention is to effectively utilize the space between the locking member of the card connector and the outermost connecting terminal pair, and arrange more connecting terminals in the slot of the card connector with limited size.

According to one aspect of the present invention, a card connector for a memory card is proposed, comprising: an insulating body with a slot for inserting a memory card; a pair of locking parts respectively located at The two ends of the slot, the locking member is suitable for moving between the locking position for locking the memory card and the release position for releasing the memory card, each locking member has a hook, the card a hook drives the memory card out of the slot when moving the locking member from the locking position to the release position; and a set of first connecting terminals disposed in the slot, wherein: The card connector further includes at least one second connection terminal pair disposed near at least one end of the slot, the connection terminals of the second connection terminal pair facing each other in the slot at the The hook of a locking member in the release position crosses the plane defined by the pair of second connection terminals, and the hook is located between the connection terminals of the second pair of connection terminals and is not connected to the second connection terminal. Either connection terminal of the terminal pair interferes.

Optionally, each connection terminal in the second connection terminal pair has a pin portion, a contact portion, and a beam portion connected between the pin portion and the contact portion; and the first The beams of the connecting terminals in the two connecting terminal pairs are parallel or substantially parallel to each other, and the hook in the release position is located between the beams of the second connecting terminal pair.

Further, the contact portion of each connection terminal in the second connection terminal pair is bent from the beam portion to form an arc-shaped contact surface, and the end of the contact portion faces the beam portion connected to the contact portion, the The contact surfaces are used to make electrical contact with the memory card; the contact surfaces of the second connection terminal pair are opposite to each other.

Optionally, each connecting terminal has a pin portion, a contact portion, and a beam portion connected between the pin portion and the contact portion, wherein the contact portion has an electrical connection with the memory card. The contact area of the contact; in the inserting direction of the memory card, the height of the contact area of the connection terminal in the second connection terminal pair from the groove bottom of the slot is greater than the distance between the contact area of the first connection terminal. The height of the groove bottom of the described socket.

In the above card connector, the connection terminals of the second connection terminal pair may be power supply terminals.

In the above card connector, the card connector may be a DDR DIMM connector.

Optionally, the at least one second connection terminal pair includes two second connection terminal pairs, one second connection terminal pair is arranged near one end of the slot, and the other second connection terminal pair is arranged in the slot near the other end.

Utilize the card connector of the present invention, can effectively utilize the space between the locking part of the card connector and the connecting terminal pair on the edge, for example, increase the connecting terminal on the basis of the original DDR3 DIMM connector, thereby can be for the new type DIMMs provide additional power and/or signal transmission paths.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the DDR3 DIMM connector in the prior art;

Figure 2 is an enlarged view of the end of the DDR3 DIMM connector in Figure 1;

Fig. 3 is a schematic structural diagram of the connection terminal pair of the DDR3 DIMM connector in Fig. 1;

FIG. 4 is a schematic perspective view of a card connector according to an embodiment of the present invention;

5 is a partial cross-sectional view of the end of the card connector in FIG. 4, wherein the locking member is in an open position or a released position;

FIG. 6 is a schematic structural diagram of a connection terminal pair according to an embodiment of the present invention.

Detailed ways

Exemplary embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals designate the same or similar elements. The embodiments described below with reference to the figures are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

As shown in Fig. 4-6, according to the card connector 100 of the present invention, it comprises: an insulating body 110, is provided with a slot 101 on it, is used for inserting a memory card (not shown); Locking pieces 102 are respectively located at the two ends of the slot 101, and the locking pieces 102 are suitable for locking the memory card in the locking position (as shown in FIG. 4 ) and releasing the memory card in the release position (as shown in Figure 5 ), each locking member 102 has a hook 103, and the hook 103 moves the locking member 102 from the locking position to the releasing position. driving the memory card out of the slot 101; and a set of first connection terminals 1042 disposed in the slot 101, wherein: at least one second terminal is disposed near at least one end of the slot 101; A pair of connection terminals, the connection terminals 1041 of the second pair of connection terminals are opposite to each other in the slot 101, and the hook 103 of a locking member 102 in the release position crosses the plane defined by the second pair of connection terminals P, and the hook 103 is located between the connection terminals of the second connection terminal pair without interfering with any connection terminal 1041 of the second connection terminal pair.

It should be noted that although the idea of the present invention is described by taking the transformation of the DDR3 DIMM connector as an example in Figures 4-5, the technical solution of the present invention can also be applied to other card connectors.

Here, the plane defined by the second pair of connection terminals refers to the plane defined by the pair of opposite connection terminals 1041 when the connection terminals 1041 are assumed to be very thin. Specifically, the plane may also refer to a plane defined by the side surfaces S of a pair of opposite connection terminals 1041, or may be a plane P defined by the symmetrical centerlines of a pair of connection terminals 1041 together, as shown in FIGS. 5-6 Show. The purpose of the introduction of the plane P here is to define the positional relationship between the hook 103 of the locking member 102 in the release position and the pair of connecting terminals 1041 nearest to it, which is used to indicate that the hook 103 enters beyond the plane P. It is between the nearest pair of connection terminals 1041 , which is different from the prior art where the hook does not enter between the nearest pair of opposite connection terminals. As shown in FIG. 5 , it can also be described as "the hook 103 of a locking member 102 in the release position crosses the plane P defined by the second connecting terminal pair, and the hook 103 is located on the Between the connecting terminals of the second pair of connecting terminals", that is, in Fig. 5, in the projection in the direction perpendicular to the inward direction of the paper surface, the projection of the hook 103 of the locking member 102 in the release position and the nearest Projections of a pair of connection terminals 1041 overlap.

Because the hook 103 can be moved between the nearest pair of terminals, or between more pairs of terminals, the distance between the locking member 102 at the two ends of the slot 101 and the closest connecting terminal can be effectively utilized. The space between them, that is, the area A mentioned in the background art, provides another power and signal transmission path for the card connector.

The above solution can be realized by increasing the movable distance between the pair of connection terminals 1041 for the hook 103 of the locking member 102 . Specifically, as shown in FIG. 6 , each connection terminal 1041 in the second connection terminal pair has a pin portion a, a contact portion c, and a connection between the pin portion a and the contact portion c. and the beams b of the connection terminals 1041 in the second connection terminal pair are parallel or substantially parallel to each other, and the hook 103 in the release position is located on the second connection terminal pair. Between the beam part b. In this way, compared with the connecting terminal pair used in the prior art shown in accompanying drawing 3, the distance between the connecting terminals of the second connecting terminal pair within the movable range of the hook 103 can be effectively increased, thereby preventing The hook 103 contacts or interferes with any connection terminal 1041 of the second connection terminal pair during the movement.

As shown in FIGS. 4 and 6 , the contact portion c of each connection terminal 1041 in the second connection terminal pair is bent from the beam portion to form an arc-shaped contact surface 105 , and the end of the contact portion c faces toward the contact surface 105 . The beam part b connected with the other part; the contact surface 105 is used to form an electrical contact with the memory card, and the contact surfaces 105 of the second connection terminal pair are opposite to each other.

Certainly, the shape of the connection terminal 1041 is not limited thereto as long as the hook 103 is not in contact with it during the moving process. For example, the beam portion b may be in a convex shape, so that the distance between the beam portions b opposite to each other can be further widened.

It can also be ensured that the hook 103 of the locking member 102 will not contact the connection terminals by raising the position of the contact portion of the second connection terminal pair. Specifically, in the card connector, each connection terminal has a pin portion a, a contact portion c, and a beam portion b connected between the pin portion and the contact portion, wherein the contact Part c has a contact area in electrical contact with the memory card; in the inserting direction of the memory card, the height of the contact area of the connecting terminal 1041 in the second connecting terminal pair from the groove bottom of the slot h2 is greater than the height h1 of the contact area of the first connection terminal 1042 from the bottom of the slot. Because the distance between the contact portions of the connection terminal pair is the smallest, increasing the position of the contact portion of the connection terminal pair can expand the movable space of the hook 103 of the locking member 102 between the connection terminal pairs without contacting the connection terminal. In this solution, the connection terminal 1041 in the second connection terminal pair can be the connection terminal shown in FIG. 3 , and of course it can also be the connection terminal shown in FIG. 6 .

It should be pointed out that the height of the contact area from the bottom of the groove here represents, for example: when the contact area forms a line contact with the contact terminal of the memory card, the distance from the contact line to the bottom of the groove; In the case of terminal contact, the distance from the horizontal centerline of the contact surface to the bottom of the groove.

In addition to designing the shape and arrangement position of the connecting terminals close to the locking member 102, the width of the hook 103 perpendicular to the plane P can also be reduced, so that the hook 103 is roughly in the middle between the opposite connecting terminals. Movement, if the precision is sufficient, can also effectively utilize the space between the locking member 102 at the two ends of the slot 101 and the closest connection terminal, thereby providing additional power and signal transmission paths for the card connector.

Of course, reducing the width of the hook 103 can also be combined with the design of the shape and arrangement of the connecting terminals.

The connection terminals 1041 of the above-mentioned second connection terminal pair may be power terminals and/or signal terminals, so as to provide another power and/or signal transmission path for the card connector 100 . For example, in the case that the connection terminal 1041 includes a power supply terminal, it is possible to avoid the power supply problem caused by insufficient number of power supply terminals of the card connector, such as a DDR3 DIMM connector.

As shown in FIG. 4, the card connector 100 may be a DDR DIMM connector. Optionally, the at least one second connection terminal pair includes two second connection terminal pairs, one second connection terminal pair is arranged near one end of the socket 101, and the other second connection terminal pair is arranged at the socket 101. Near the other end of the groove 101.

While embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention. The scope of application of the present invention is defined by the appended claims and their equivalents. The protection scope of the rights of the present invention shall prevail as defined in the scope of patent application of the present application. It should be noted that the word "comprising" does not exclude other elements, and the word "a" does not exclude a plurality.

Claims (7)

1. card connector comprises:

An insulating body which is provided with a slot, is used for the storage card of pegging graft;

A pair of locking member, lay respectively at two ends of described slot, described locking member is suitable between the off-position of the locked position of locking storage card and release storage card mobile, each locking member has a grab, and described grab breaks away from described slot described locking member is driven described storage card when described locked position moves to described off-position; With

One group of first splicing ear is arranged in the described slot,

It is characterized in that:

Described card connector further comprises at least one second splicing ear pair, be arranged near at least one end of described slot, the splicing ear of described the second splicing ear centering is opposite each other in slot, the grab that is in a locking member of described off-position is crossed the described plane of the second splicing ear to limiting, and described grab between the right splicing ear of described the second splicing ear and is interfered with any splicing ear of described the second splicing ear centering.

2. card connector according to claim 1 is characterized in that:

Each splicing ear of described the second splicing ear centering has a pin section, a contact site and is connected to a beam section between described pin section and the described contact site; And

Described the second splicing ear to described in the parallel to each other or almost parallel of the described beam section of splicing ear, be in the grab of off-position between the right beam section of described the second splicing ear.

3. card connector according to claim 2 is characterized in that:

The contact site of described second each splicing ear of splicing ear centering is bent to form arc contact surface from described beam section, and the end of contact site is towards the described beam section that is connected with described contact site, and described contact-making surface is used for forming with described storage card and electrically contacts;

The right described contact-making surface of described the second splicing ear toward each other.

4. card connector according to claim 1 is characterized in that:

Each splicing ear has a pin section, a contact site and is connected to a beam section between described pin section and the described contact site, and wherein, described contact site has the contact zone that electrically contacts with described storage card;

On the grafting direction of described storage card, the height of the bottom land of the described slot of the contact zone of the splicing ear of described the second splicing ear centering distance is greater than the height of the bottom land of the described slot of contact zone distance of the first splicing ear.

5. each described card connector according to claim 1-4 is characterized in that:

The splicing ear of described the second splicing ear centering is power supply terminal.

6. each described card connector according to claim 1-4 is characterized in that:

Described card connector is a kind of DDR DIMM connector.

7. card connector according to claim 6 is characterized in that:

Described at least one second splicing ear is to comprising two the second splicing ears pair, and second splicing ear is near the end that is arranged in slot, and another second splicing ear is near another end that is arranged in slot.

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