TWM452507U - Card connector - Google Patents

Description

Card connector

The present invention relates to a card connector, and more particularly to a DDR DIMM (Dual Data Rate, Dual-Inline-Memory-Modules) connector.

A DDR3 DIMM connector 200 is shown in FIG. 1. The connector 200 includes: a slot 201; a pair of locking members 202 disposed at two ends of the slot 201, and the locking member 202 is adapted to lock the memory card (not shown) Moving between the locked position of the display and the release position of the release memory card; a plurality of connection terminals 203 disposed in the slot 201. In addition, as will be mentioned later, each of the locking members 202 has a hook that drives the storage card out of the slot 201 when the locking member is moved from the locked position to the released position.

2 is an enlarged view of the end of the connector 200 of FIG. 1. It is apparent that there is an area A at the end of the connector 200, which is located between the pair of connecting terminals of the locking member 202 and the extreme edge. Due to the presence of the area A, when the locking member 202 is moved to the release position, the hook of the locking member 202 is still at a distance from the pair of connecting terminals at the edge of the slot 201 to prevent the hook from touching the connection. The terminal causes the connection terminal to be deformed.

However, as technology advances, there is a need to provide more connection terminals in the socket and more power to the memory card with the connector unchanged in size.

The present invention provides a connector with the same size Arrange or design the power connection terminals to provide more power to the memory card.

According to one aspect of the present invention, a card connector for a memory card is provided, comprising: an insulative housing having a slot for inserting a memory card slot; and a pair of locking members, respectively Located at the two ends of the slot, the locking member is adapted to move between a locked position of the locking storage card and a release position of the release storage card, each locking member has a hook, and the hook is locked Driving the memory card out of the slot when the self-locking position is moved to the release position; and a set of first conductive terminals disposed in the slot, wherein the first conductive terminal comprises a plurality of first power terminals and a plurality of signal terminals, Wherein: the card connector further comprises a set of second power terminals, wherein the resistance of the second power terminal is smaller than the resistance of the first power terminal for transmitting electrical energy different from the transmission power of the first power terminal.

Optionally, the cross-sectional area of the second power terminal is greater than the cross-sectional area of the first conductive terminal. Advantageously, the width of the second power terminal is substantially the same as the width of the first power terminal in the longitudinal direction of the slot.

Optionally, the first power terminal is adapted to conduct a current of 0.5 amps and the second power terminal is adapted to conduct a current of 1.5 amps.

Optionally, a set of second power terminals are disposed adjacent at least one end of the slot.

Further, a set of second power terminals form at least one second power terminal pair, and a second power terminal of the second power terminal pair is opposite to each other in the slot, and a hook of a locking member in the release position passes over a second power supply terminal pair defines a plane, and the hook is located between the second power terminal of the second power terminal pair without interfering with any of the second power terminal pairs child.

Advantageously, each of the second power terminal pairs has a lead portion, a contact portion, and a beam portion connected between the lead portion and the contact portion; and the second power supply terminal is centered second The beam portions of the power terminals are parallel or substantially parallel to each other, and the hooks at the release position are located between the beam portions of the pair of second connection terminals. Further, the contact portion of each of the second power terminal pairs 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, and the contact surface is formed for forming with the memory card. Electrical contact; the contact faces of the second power terminal pair are opposite each other.

Or advantageously, each terminal has a lead portion, a contact portion and a beam portion connected between the lead portion and the contact portion, wherein the contact portion has a contact area in electrical contact with the memory card; In the plugging direction, the contact area of the second power terminal of the second power terminal pair is higher than the groove bottom of the slot by the height of the contact area of the first conductive terminal from the groove bottom of the slot.

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

Optionally, the at least one second power terminal pair includes two second power terminal pairs, one second power terminal pair is disposed near one end of the slot, and the other second power terminal pair is disposed at the other end of the slot nearby.

With the card connector of the present invention, more power can be supplied to the memory card while the connector is the same size, and even the space between the locking component of the card connector and the pair of the most extreme terminal can be effectively utilized. For example, adding a connection terminal to the original DDR3 DIMM connector provides an additional power transfer path for the new DIMM.

The exemplified embodiments of the present invention are described in detail in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are illustrative, and are not intended to be construed as limiting.

As shown in FIG. 4 to FIG. 6, the card connector 100 of the present invention comprises: an insulative housing 110 having a slot 101 for inserting a memory card (not shown); The locking members 102 are respectively located at the two ends of the slot 101, and the locking member 102 is adapted to lock the storage card in a locked position (as shown in FIG. 4) and release the storage card (as shown in FIG. 5). Moving between, each locking member 102 has a hook 103 that drives the memory card out of the slot 101 when the locking member 102 is moved from the locked position to the release position; A conductive terminal 1042 is disposed in the slot 101, wherein the first conductive terminal 1042 includes a plurality of first power terminals and a plurality of signal terminals, wherein: the card connector 100 further includes a set of second power terminals 1042, the second power source The resistance of the terminal 1042 is smaller than the resistance of the first power terminal for transmitting power different from the transmission power of the first power terminal.

Advantageously, the cross-sectional area of the second power supply terminal 1041 is greater than the cross-sectional area of the first conductive terminal. Of course, the second power terminal 1041 can also use a material having a higher conductivity to have a smaller resistance, thereby obtaining better conductivity.

Advantageously, the width of the second power supply terminal 1041 is substantially the same as the width of the first power supply terminal 1042 in the longitudinal direction of the slot 101. Therefore, the spacing between the second power terminal 1041 and the adjacent first conductive terminal 1042 is the same as the spacing between adjacent first power terminals. Therefore, the second power terminal The sub-1041 may be disposed at a position between the two ends of the card connector 100, or may be disposed near an end of the card connector 100. However, in the case where the second power supply terminal 1041 is disposed near the end of the card connector 100, the width of the second power supply terminal 1041 is not necessarily required to be substantially the same as the width of the first power supply terminal 1042.

Advantageously, the second power supply terminal is adapted to conduct a current greater than the current transmitted by the first power supply terminal, according to an embodiment of the invention, the first power supply terminal is adapted to conduct a current of 0.5 amps and the second power supply terminal is adapted to conduct 1.5 amps of current.

The case where the first power terminal 1042 is disposed near the end of the card connector 100 will be discussed below. Specifically, as shown in FIG. 4 to FIG. 5, a set of second power terminals 1041 forms at least one second power terminal pair, and a second power terminal 1041 of a second power terminal pair is opposite to each other in the slot 101. The hook 103 of the locking member 102 in the release position passes over a plane defined by a pair of second power terminals, and the hook 103 is located between the second power terminals 1041 of the second power terminal pair without interfering with the second Any of the power supply terminal pairs of the second power supply terminal 1041.

It should be noted that although the concept of the present invention is illustrated by modifying the DDR3 DIMM connector in FIGS. 4 to 5, the technical solution of the present invention can also be applied to other card connectors.

The plane defined by the pair of second power terminals herein represents a plane defined by one of the pair of second power terminals 1041 when the second power terminal 1041 is assumed to be thin. Specifically, the plane may also represent a plane defined by one of the opposite pairs of the side S of the second power terminal 1041, or may be a pair of second power terminals. The planes P defined by the respective symmetrical centerlines of 1041 are as shown in FIGS. 5 to 6. 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 second power terminals 1041 closest thereto, to indicate that the hook 103 passes over the plane. P enters between the pair of second power terminals 1041 closest thereto, and thus does not differ from the connection terminals of the prior art in which the hooks do not enter one of the opposite pairs. As shown in FIG. 5, the hook 103 of the locking member 102 in the release position can be described as crossing the plane P defined by the pair of second power terminals, and the hook 103 is located at the second pair of the second connecting terminal. Between the power terminals 1041, that is, in the projection in the direction perpendicular to the inward direction of the paper, the projection of the hook 103 of the locking member 102 in the release position and the closest to the second power source There is an overlap in the projection of the terminal 1041.

Since the hook 103 can be moved between a pair of the second power terminal 1041 closest thereto, or even more between the terminals, the locking member 102 at the two ends of the slot 101 can be effectively utilized. The space between the access terminals, i.e. the area A mentioned in the prior art, thus provides an additional power transmission path for the card connector.

The above solution can be implemented by increasing the distance between the pair of connecting terminals 1041 for the hooks 103 of the locking members 102 to move. Specifically, as shown in FIG. 6, each of the second power terminal 1041 has a pin portion a, a contact portion c, and a connection between the pin portion a and the contact portion c. a beam portion b; and the beam portions b of the second power terminal 1041 of the second power terminal pair are parallel or substantially parallel to each other, and the hooks 103 at the release position are located between the beam portions b of the pair of second power terminals. Therefore, compared to the existing one shown in Figure 3 The connection terminal pair used in the technology can effectively increase the distance between the second power terminal of the second power terminal pair in the movable range of the hook 103, thereby preventing the hook 103 from being in the moving process and the second power terminal pair Any of the second power terminals 1041 contacts or interferes.

As shown in FIG. 4 and FIG. 6, the contact portion c of each of the connection terminals 1041 of the second power terminal pair is bent from the beam portion to form an arcuate contact surface 105, and the end of the contact portion c faces the beam portion connected to the contact portion. b; the contact surface 105 is for making electrical contact with the memory card, and the contact faces 105 of the second connection terminal pair are opposite each other.

Of course, the shape of the second power terminal 1041 is not limited thereto as long as the hook 103 can be prevented from coming into contact with it during the movement. For example, the beam portion b may have an outwardly convex shape, so that the distance between the opposing beam portions b can be further widened.

It is also possible to ensure that the hook 103 of the locking member 102 does not come into contact with the second power terminal by increasing the position of the contact portion of the second power terminal pair. Specifically, in the card connector, each of the conductive terminals has a lead portion a, a contact portion c, and a beam portion b connected between the lead portion and the contact portion, wherein the contact portion c has and stores The contact area of the electrical contact of the card; in the plugging direction of the memory card, the height h2 of the contact area of the second power terminal 1041 of the second power terminal pair from the groove bottom of the slot is greater than the contact area distance of the first conductive terminal 1042 The height h1 of the bottom of the slot. Since the distance between the contact portions of the conductive terminals is the smallest, the position of the contact portion of the pair of conductive terminals is increased, and the movable space of the hooks 103 of the locking member 102 not contacting the conductive terminals between the pairs of the conductive terminals can be expanded. . In this solution, the conductive end of the second conductive terminal pair The sub-1041 can be the connection terminal shown in FIG. 3, and of course the connection terminal shown in FIG.

It should be noted that the height of the contact area from the bottom of the groove here means, for example, the distance from the contact line to the bottom of the groove in the case where the contact area forms a line contact with the contact terminal of the memory card; the contact terminal between the contact area and the memory card The distance from the horizontal centerline of the contact surface to the bottom of the groove in the case of surface contact.

In addition to designing the shape and arrangement position of the second power terminal adjacent to the locking member 102, the width of the hook 103 perpendicular to the plane P can be reduced, so that the hook 103 is between the opposite second power terminals as much as possible. Moving substantially in the middle position, if the accuracy is sufficient, the same can effectively utilize the space between the locking member 102 at the two ends of the slot 101 and the closest connecting terminal, thus providing additional power to the card connector. Transmission path.

Of course, reducing the width of the hook 103 can also be combined with the shape of the second power terminal and the design of the arrangement.

The second power terminal 1041 of the pair of second power terminals may provide an additional power transmission path for the card connector 100. For example, the second power terminal 1041 can avoid power supply problems due to insufficient number of power terminals of the card connector (eg, DDR3 DIMM connector).

As shown in FIG. 4, the card connector 100 can be a DDR DIMM connector. Optionally, the at least one second power terminal pair includes two second power terminal pairs, one second power terminal pair is disposed near one end of the slot 101, and the other second power terminal pair is disposed at the slot 101 Near one end.

While the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art Variations may be made to these embodiments. The scope of applicability of the present invention is defined by the scope of the appended claims and their equivalents. The scope of the present invention is defined by the scope of the claimed patent application. It should be noted that the word "comprising" does not exclude other elements, and the word "a" does not exclude a plurality.

100‧‧‧ card connector

101‧‧‧ slots

102‧‧‧Locking parts

103‧‧‧ hook

105‧‧‧Contact surface

110‧‧‧Insulated body

200‧‧‧Connector

201‧‧‧ slots

202‧‧‧Locking parts

203‧‧‧Connecting terminal

1041‧‧‧second power terminal

1042‧‧‧First conductive terminal

A‧‧‧ area

a‧‧‧Pin section

B‧‧‧ Beam Department

c‧‧‧Contacts

H1‧‧‧ Height

H2‧‧‧ height

P‧‧‧ plane

Side of S‧‧‧ second power terminal

1 is a perspective view of a DDR3 DIMM connector in the prior art; FIG. 2 is an enlarged view of an end portion of the DDR3 DIMM connector of FIG. 1; and FIG. 3 is a structure of a connection terminal pair of the DDR3 DIMM connector of FIG. 4 is a perspective view of a card connector according to an embodiment of the present invention; FIG. 5 is a partial cross-sectional view of the end of the card connector of FIG. 4, wherein the locking member is in an open position or a release position; 6 is a schematic structural view of a pair of connection terminals according to an embodiment of the present invention.

100‧‧‧ card connector

101‧‧‧ slots

102‧‧‧Locking parts

110‧‧‧Insulated body

1041‧‧‧second power terminal

1042‧‧‧First conductive terminal

Claims (12)

A card connector includes: an insulative housing having a slot for inserting a memory card; and a pair of locking members respectively located at two ends of the slot, the locking member being adapted to be Moving between the locking position of the locking memory card and the releasing position of the release memory card, each locking member has a hook, and the hook is driven when the locking member is moved from the locking position to the release position The memory card is separated from the slot; and a set of first conductive terminals are disposed in the slot, wherein the first conductive terminals comprise a plurality of first power terminals and a plurality of signal terminals, wherein the card is connected The device further includes a set of second power terminals, the resistances of the second power terminals being smaller than the resistances of the first power terminals for transmitting electrical energy different from the transmission power of the first power terminals. The card connector of claim 1, wherein: the cross-sectional area of the second power terminals is greater than the cross-sectional area of the first conductive terminals. The card connector of claim 2, wherein the width of the second power terminals is substantially the same as the width of the first power terminals in a longitudinal direction along the slot. The card connector of claim 1, wherein: the second power terminals are adapted to conduct a current greater than a current suitable for conduction by the first power terminals. The card connector of claim 4, wherein: The first power terminals are adapted to conduct a current of 0.5 amps and the second power terminals are adapted to conduct a current of 1.5 amps. The card connector of claim 1, wherein: the set of second power terminals are disposed near at least one end of the slot. The card connector of claim 6, wherein: the set of second power terminals form at least one second power terminal pair, and the second power terminals of the pair of second power terminals are opposite each other in the slot, in the release position a hook of one of the locking members passes over a plane defined by the pair of second power terminals, and the hook is located between the second power terminals of the second pair of power terminals without interfering with the pair of second power terminals Any of the second power terminals. The card connector of claim 7, wherein: each of the second power terminal pairs has a pin portion, a contact portion, and a connection between the pin portion and the contact portion The beam portion; and the beam portions of the at least one second power terminal pair of the second power terminals are parallel or substantially parallel to each other, and the hooks at the release position are located between the beam portions of the pair of second connection terminals. The card connector of claim 8, wherein: the contact portion of each of the second power terminal pairs is bent from the beam portion to form an arcuate contact surface, and the end of the contact portion is connected to the contact portion The beam portion is for making electrical contact with the memory card; the second power terminals are opposite to each other. The card connector of claim 7, wherein: each terminal has a lead portion, a contact portion, and a beam portion connected between the lead portion and the contact portion, wherein the contact portion has the storage portion a contact area in contact with the card; in a plugging direction of the memory card, a contact area of the second power terminal of the pair of second power terminals is higher than a bottom of the slot of the slot than a contact area of the first conductive terminal The height from the bottom of the slot. The card connector of any one of claims 7 to 10, wherein: the card connector is a DDR DIMM connector. The card connector of claim 11, wherein: the at least one second power terminal pair comprises two second power terminal pairs, one second power terminal pair is disposed near one end of the slot, and the other second power terminal The pair is placed near the other end of the slot.