JP2001357917A - Contact arrangement method of connector for memory card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a contact arrangement method of a connector for a memory card in which cards can be put un a plurality of rows, the space factor of a board is small, and a plurality of rows of contacts can be easily connected to the board. SOLUTION: Suppose there is a connector for a memory card which can accept two cards freely detachable, in a contact arrangement method of a connector for a memory card, which consists of a housing with loading slots for insertion of two cards, and a contact which is held and fixed to the housing. Here, a contiguous contact in contact with a card inserted in the upper slot is protruded toward both width directions of the housing, and also is arranged so as to be able to connect to a pattern of the board.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for arranging contacts of a memory card connector when a plurality of memory cards of different types are selectively inserted into the same connector to operate an information device. .

[0002]

2. Description of the Related Art Conventionally, different types of memory cards serving as various types of information media have been provided with dedicated connectors and attached to information devices to retrieve or store information stored in the media.

[0003]

In recent years, as information devices have been miniaturized and substrates have been miniaturized, the area occupied by the substrates is limited. However, preparing different connectors when exchanging a plurality of memory cards requires an area occupied by the board a plurality of times, which leads to an increase in the size of the information equipment, which is inconvenient for carrying. It is. Also,
A method of providing a plurality of connectors may be considered, but if a plurality of different cards can be inserted into one connector, it is difficult to arrange the contacts.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method of arranging a connector for a memory card connector in which a plurality of cards can be inserted, the area occupied by the substrate is small, and a plurality of contacts can be easily connected to the substrate.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a memory card connector into which two cards are removably inserted, a housing having an insertion slot into which the two cards are inserted, In the method for arranging contacts of a connector for a memory card comprising contacts to be held and fixed, contacts for contacting a card to be inserted in an upper stage are protruded to both sides in the width direction of the housing and are arranged so as to be connectable to a pattern on a substrate. This can be achieved by: Another method is a memory card connector into which two cards are removably inserted,
In the contact arrangement method for a connector for a memory card, comprising a housing having an insertion slot into which two cards are inserted, and a contact held and fixed to the housing, a contact that comes into contact with a card inserted in an upper stage is It can also be achieved by projecting the contact in contact with the card inserted in the lower row to the side where the card is to be projected, arranging the upper and lower contacts in a substantially staggered manner, and arranging them so as to be connectable to the pattern on the substrate.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for arranging contacts of a memory card connector according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of one embodiment of a memory card connector according to the present invention, and FIG. 2 is a top view and a front view of the memory card connector of FIG. FIG. 3 is a perspective view of another embodiment of the memory card connector according to the present invention, and FIG. 4 is a top view and a front view of the memory card connector of FIG. The memory card connector of the present invention mainly includes contacts A, contacts B, a housing, and switch terminals. This memory card connector has a structure in which different types of cards can be inserted in the upper and lower stages.

An embodiment will be described with reference to FIGS. 1 and 2. Hereinafter, each component will be described. First, the housing 12 is made of an electrically insulating plastic and is manufactured by injection molding of a known technique. As a material for the housing 12, dimensional stability, strength, and low cost are required, so that polybutylene terephthalate (PBT), polyamide (PA), polycarbonate (PC), or the like is often used. As shown in FIG. 1, the housing 12 is provided with an insertion hole A24 and an insertion hole B22 so that the SSFDC card and the MS card can be shared, for example.
An insertion hole (not shown) for holding and fixing the contact A14 and the contact B16 is provided. An insertion hole (not shown) for holding and fixing each switch terminal is also provided. The housing 12 is provided with positioning pins 20 protruding toward the board connection side so that the connector can be easily positioned on the board. The positioning pins 20 may be integral with the housing 12 or may be separate parts.
The housing 12 has a substantially convex shape in which the width direction is lowered by one step.

Next, the contact will be described. The contacts are divided into a contact A14 that contacts the upper card A32 and a contact B16 that contacts the lower card B34. Each contact is made of metal, is manufactured by press working of a known technique, and is required to have spring properties and conductivity. Therefore, brass, beryllium copper, and phosphor bronze are often used. The contact mainly includes a contact portion that contacts the card, a fixing portion that is fixed to the housing 12, and a connection portion that connects to the board. The contact A14 is in contact with the card A32, is fixed to the upper insertion hole A24 so that the contact portion of the contact A14 protrudes, and is connected to the pattern of the substrate along the step on both sides in the width direction of the housing 12. It is arranged so as to protrude. The contacts A14 are arranged on both sides in the width direction of the housing 12 so that the number of contact terminals of the card A32 becomes half. The contact B16
Is in contact with the card B34, is fixed so that the contact portion of the contact B16 projects into the lower insertion hole B22, and is connected to the pattern of the substrate on the side opposite to the side where the insertion hole B22 is provided in the housing 12. It is arranged to protrude as much as possible. The arrangement positions of the contacts A14 and B16 are appropriately designed so as to match the pattern of the substrate.

Next, each switch terminal will be described with reference to FIG. Switch-related terminals include a switch terminal A26, a switch terminal B28, and a switch terminal C30. Each switch terminal is also made of metal like a contact, is manufactured by a known press working, and requires spring properties and conductivity. Therefore, the same material as the contact is often used. The role will be described for each switch terminal. The switch terminal B28 is
The contact portion of the switch terminal B28 is arranged to protrude into the upper insertion hole A24, and the card A32 is inserted into the insertion hole A2.
4, the card A32 comes into contact with the contact portion of the switch terminal B28, and the free end of the switch terminal B28 is bent to contact the switch terminal A26, and it is detected whether or not the card A32 is inserted. I can do it. The switch terminal C30 is disposed so that the contact portion of the switch terminal C30 protrudes into the lower insertion hole B22. When the card B34 is inserted into the insertion hole B22, the card contacts the contact portion of the switch terminal C30. The free end side of the switch terminal C30 is bent so as to contact the switch terminal A26, so that it can be detected whether or not the card B34 is inserted. The switch terminal A26 has a contact portion between the switch terminal B28 and the switch terminal C30 as described above, and is fixed to the housing 12 at both ends to detect insertion of the card A32 and the card B34.

In general, when connecting a memory card connector to a board, fixing brackets 18 are often used in order to cope with undulations or the like when inserting a card. The fixing bracket 18 is also made of metal, and is formed by a known press working. The fixture 18 is connected to the substrate together with the contacts and switch terminals by reflow or the like.

Another embodiment will be described with reference to FIGS. 3 and 4, but the description of the same parts as those in the above embodiment will be omitted. The main components are the same as those in the above-described embodiment, and will be described for each component. First, the housing 42
Are the same as those described above. As shown in FIG. 3, the housing 42 is also provided with an insertion hole A54 and an insertion hole B52 so that, for example, the SSFDC card and the MS card can be shared, and the contact A44 and the contact B46 are provided.
Is provided with an insertion hole (not shown) in which is held and fixed. An insertion hole (not shown) for holding and fixing each switch terminal is also provided. The same is true of the point that a positioning pin for easily positioning the connector on the board is provided. The housing 42 has a substantially stepped shape in which a contact is protruded and one step is lowered.

Next, the contact will be described. The contact A4 is also in contact with the upper card.
4 and a contact B46 that contacts the lower card, and the material and configuration are the same. The contact A44 is in contact with the card A32. The contact A44 is fixed to the upper insertion hole A54 so that the contact portion of the contact A44 protrudes. The contact A44 has a stepped portion opposite to the side where the insertion hole A54 is provided. Are arranged so as to be connectable to the pattern of the substrate along. The contact B46 is in contact with the card B34, is fixed to the lower insertion hole B52 so that the contact portion of the contact B46 protrudes, and is provided on the side of the housing 42 opposite to the side where the insertion hole B52 is provided. It is arranged to protrude so that it can be connected to the pattern. The arrangement positions of the contact A44 and the contact B46 are substantially staggered, and are appropriately designed so as to match the pattern of the substrate. The switch terminal and the fixing bracket are the same as in the above-described embodiment.

[0013]

According to the present invention, the following remarkable effects can be obtained by adopting the above structure. (1) Since different cards can be inserted in the upper and lower rows, the occupied area of the board can be small. (2) Even if different cards can be inserted in the upper and lower stages by projecting the upper contact A on both sides in the width direction of the housing, it can be easily connected to the substrate without increasing the area occupied by the substrate. can do. (3) The contact A on the upper side protrudes in the opposite direction to the insertion hole of the housing, and is arranged in a staggered manner with the contact B, so that even if different cards can be inserted in the upper and lower stages, the area occupied by the board is reduced. It can be easily connected to the substrate without increasing the size.

[Brief description of the drawings]

FIG. 1A is a perspective view of a memory card connector of the present invention as viewed from a card insertion hole direction. FIG. 3B is a perspective view of the memory card connector of the present invention as viewed from the side where the contact B protrudes.

FIG. 2 is a top view and a front view of the memory card connector of FIG. 1;

FIG. 3A is a perspective view of another memory card connector of the present invention as viewed from the direction of a card insertion hole. (B) is a perspective view of another memory card connector of the present invention as viewed from a contact B projecting side.

4 is a top view and a front view of the memory card connector of FIG. 3;

FIG. 5 is an explanatory diagram for explaining each switch terminal.

[Explanation of symbols]

 10, 40 Memory card connector 12, 42 Housing 14, 44 Contact A 16, 46 Contact B 18, 48 Fixing bracket 20 Positioning pin 22, 52 Insertion hole B 24, 54 Insertion hole A 26 Switch terminal A 28 Switch terminal B 30 Switch terminal C 32 Card A 34 Card B

Claims (2)

[Claims] 1. A connector for a memory card into which two cards are removably inserted, comprising: a housing having an insertion slot into which two cards are inserted; and a contact held and fixed to the housing. The method for arranging contacts of a connector for a memory card according to claim 1, wherein the contacts for contacting the card to be inserted in the upper row are protruded to both sides in the width direction of the housing and are arranged so as to be connectable to a pattern on a substrate. Connector contact arrangement method. 2. A memory card connector into which two cards are removably inserted, comprising a housing having an insertion slot into which two cards are inserted, and a contact held and fixed to the housing. In the contact arrangement method for a memory card connector, the contact in contact with the card inserted in the upper row is projected to the side from which the contact in contact with the card inserted in the lower row is projected, and the upper contact and the lower contact are substantially formed. A method of arranging contacts of a connector for a memory card, wherein the contacts are arranged in a staggered manner and arranged so as to be connectable to a pattern on a substrate.