JP4883451B2 - Hinge cover type memory card connector - Google Patents

Description

  In the present invention, an opening of a connector housing that accommodates a memory card as a connection object is closed by a cover that is supported by the connector housing so as to be openable and closable via a hinge. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge cover type memory card connector having a structure that can be used by being slid along.

In this type of conventional hinge cover type memory card connector, the connector housing incorporating a plurality of signal contacts to be brought into contact with each terminal of the memory card is made of resin, and the cover is also made of resin. The connector housing is provided with a pair of normally open fixed contact pieces, and the cover is provided with a movable contact piece for short-circuiting the pair of fixed contact pieces when the cover is closed and slid. The pair of fixed contact pieces and movable contact pieces constitute a switch, and when this switch is turned on, the cover detection circuit works to energize the memory card connected by each signal contact. (For example, refer to Patent Document 1).
Japanese Patent Laid-Open No. 2003-086302

  However, in the hinge-cover type memory card connector having such a structure, when a charged user's hand touches the cover, static electricity is transmitted to the pair of fixed contact pieces via the movable contact pieces to electrically transfer the memory card. There was a problem that would destroy it.

  An object of the present invention is to provide a hinge cover type memory card connector capable of preventing the memory card from being electrically destroyed by static electricity even when a charged user's hand touches the cover.

  The configuration of the present invention that achieves the above object will be described as follows.

  According to the first aspect of the present invention, a resin connector housing that detachably accommodates a memory card from an opening is attached to a circuit board, and the opening of the connector housing is connected to the connector housing. A hinge-cover type memory card connector having a structure that is closed by a cover that is supported so as to be opened and closed via a hinge, and in which the cover is slid along the surface of the connector housing and can be used.

  The cover is made of metal, and a metallic operation element that is inserted into the connector housing when the cover is closed protrudes from the cover.

  The connector housing is provided with a switch comprising a movable contact piece adjacent to a position where the operation element is inserted and a fixed contact piece that is in contact with the movable contact piece during standby, and the movable contact piece includes the circuit. Connected to the grounding part of the board, the fixed contact piece is connected to the plus side of the circuit board, the detection circuit of the cover works when the switch is opened from the closed,

  When the cover is slid, the movable contact piece is operated by the operation element, and the switch is opened away from the fixed contact piece,

  Either or both of the movable contact piece and the operation element are arranged so that the operation element is not electrically contacted with the movable contact piece until the movable contact piece is separated from the fixed contact piece by the operation element. The operation element is configured to electrically connect the operation element to the movable contact piece after the movable contact piece is separated from the fixed contact piece.

  In the hinge cover type memory card connector according to the present invention, the metal cover is provided with a metal operation element which is inserted into the connector housing when the cover is closed, and the position where the operation element is inserted into the connector housing. A switch comprising a movable contact piece and a fixed contact piece contacting the movable contact piece during standby is provided adjacent to the movable contact piece, and the movable contact piece is connected to the ground portion of the circuit board. Connected to the side so that the cover detection circuit works when the switch is opened from the closed state, and when the cover slides, the movable contact piece is operated with the operation element so that the switch is opened away from the fixed contact piece. Therefore, the cover detection circuit can be operated by tilting the cover onto the connector housing with the hinge and sliding it.

  In particular, one or both of the movable contact piece and the operation element is provided with an insulator that prevents the operation element from being in electrical contact with the movable contact piece until the movable contact piece is separated from the fixed contact piece by the operation element. Therefore, even when a charged user's hand touches the cover, the static electricity is prevented from flowing from the movable contact piece through the fixed contact piece to the memory card and being electrically damaged by the operation element. be able to. Further, since the operation element is configured to electrically connect the operation element to the movable contact piece when the movable contact piece is separated from the fixed contact piece, the cover can be connected to the ground thereafter.

  Hereinafter, the best mode for carrying out a hinge cover type memory card connector according to the present invention will be described in detail with reference to the drawings.

  FIGS. 1 to 6A and 6B show an embodiment of a hinge cover type memory card connector according to the present invention. FIG. 1 is a perspective view of the hinge cover type memory card connector, and FIG. 3 is a perspective view with the cover of the memory card connector open, FIG. 3 is a perspective view with the cover of the hinge cover type memory card connector opened and a memory card inserted, and FIG. FIGS. 5A and 5B are diagrams illustrating the structure and operation of the switch used in this example, and FIGS. 6A and 6B are diagrams illustrating other structure and operation of the switch used in this example. FIG.

  The hinge cover type memory card connector of this example includes a connector housing 1 made of resin and formed by molding, and a cover 3 made of metal such as stainless steel that closes an opening 2 of the connector housing 1. The connector housing 1 is mounted on a circuit board (not shown) and is electrically and mechanically connected.

  The memory card 4 is detachably accommodated in the recess 5 of the connector housing 1 from the opening 2.

A plurality of signal contacts 6 are incorporated in the connector housing 1 in parallel. Each signal contact 6 is formed of an elastic metal, and is formed on the free end side thereof so that the contact portion 6 a is curved so as to protrude into the recess 5. The connection terminal portion 6b of each signal contact 6 exists at the bottom of the connector housing 1 and is soldered to each terminal portion of a circuit board (not shown).
The cover 3 has windows 7 and 8 corresponding to the contact portions 6a and the connection terminal portions 6b, respectively.

  Arms 9a and 9b are projected from both sides of the cover 3 on the fulcrum side of rotation with respect to the connector housing 1. Rotation center shafts 10a and 10b are projected from the inner surfaces of these arms 9a and 9b. The connector housing 1 is provided with arms 11 a and 11 b corresponding to the arms 9 a and 9 b of the cover 3. Long holes 12a and 12b (12b not shown) are provided at positions where the rotation center shafts 10a and 10b of the arms 11a and 11b are fitted, respectively. With these arms 9a and 9b, rotation center shafts 10a and 10b, arms 11a and 11b, and long holes 12a and 12b, the rotation center shafts 10a and 10b of the cover 3 rotate through the long holes 12a and 12b of the connector housing 1. Hinges 13a and 13b are respectively configured. Further, the long holes 12 a and 12 b allow the cover 3 to slide along the surface of the connector housing 1 with the cover 3 being closed.

  Further, side plates 3a are formed on both side edges of the cover 3 by bending the both side edges at a right angle, and locking pieces 3b bent in a direction parallel to the cover 3 are formed on the lower edges. Is formed. On the other hand, on both side surfaces of the connector housing 1, a recess 1a is formed in which the locking piece 3b fits when the cover 3 is turned in the closing direction. The recess 1a and the locking piece 3b form the connector housing 1. The positional relationship during the closing operation of the cover 3 is restricted, and the cover 3 is connected to the connector housing when the rotation center shaft 10a is positioned on the arm tip direction side (housing rear end side) of the long hole 12a. The surface of 1 can be covered.

  Then, the locking piece 3b fits into the recess 1a, and when the cover 3 is in the cover state, the locking piece 3b protrudes below the bottom surface of the connector housing 1, and the cover 3 is opposite to the hinges 13a and 13b. It is possible to move to the end side (front end side of the housing).

  The cover 3 is provided with a metallic operating element 14 that is inserted into the connector housing 1 when the cover 3 is closed with the locking piece 3b aligned with the recess 1a. The operation element 14 is formed by cutting and raising from the cover 3.

  The connector housing 1 is provided with a groove 15 at a position where the operation element 14 is inserted. The groove 15 of the connector housing 1 is provided with a switch 18 comprising a movable contact piece 16 and a fixed contact piece 17 that is in contact with the movable contact piece 16 during standby, adjacent to the position where the operation element 14 is inserted. ing. The movable contact piece 16 is formed on the free end side of the contact 19, and a ground terminal portion 19 a connected to the ground terminal of the circuit board is provided at the base of the contact 19.

  The ground terminal portion 19a exists on the bottom side of the connector housing 1 and is connected to the ground terminal of the circuit board. The terminal portion 17a of the fixed contact piece 17 is electrically connected to the plus side of the circuit board. The fixed contact piece 17 includes a pressing portion 17b, and the connector housing 1 is pressed to the circuit board side by the pressing portion 17b.

  When the cover 3 is rotated around the hinges 13a and 13b and the opening 2 of the connector housing 1 is closed, that is, the cover 14 is located on the rear end side with respect to the connector housing 1, the operating element 14 is movable contact piece. 16 is not in contact. When the cover 3 is slid to the front end side of the housing, the operation element 14 comes into contact with the movable contact piece 16.

  When the cover 3 is slid in the reverse direction, the movable contact piece 16 is operated by the operation element 14 so that the switch 18 is opened away from the fixed contact piece 17. The detection circuit of the cover 3 is activated when the switch 18 is opened from the closed state.

  As shown in FIGS. 5A and 5B, the operation element 14 is not electrically contacted with the movable contact piece 16 until the movable contact piece 16 is separated from the fixed contact piece 17 by the operation element 14. An insulator 20 is provided at the tip of the operating element 14 in the sliding direction. As shown in FIG. 6B, the operation element 14 is configured to electrically connect the operation element 14 to the movable contact piece 16 when the movable contact piece 16 is separated from the fixed contact piece 17.

As shown in FIGS. 6A and 6B, the movable contact piece 16 is electrically connected to the movable contact piece 16 until the movable contact piece 16 is separated from the fixed contact piece 17 by the operator 14. An insulator 21 that prevents contact is provided at the position of the movable contact piece 16 that the operator 14 first contacts.
Further, the insulator 20 and the insulator 21 may be provided together on the operation element 14 and the movable contact piece 16.

  In such a hinge cover type memory card connector, the detection circuit of the cover 3 can be operated by sliding the cover 3 down on the connector housing 1 with the hinges 13a and 13b. In particular, one or both of the movable contact piece 16 and the operation element 14 are not electrically contacted with the movable contact piece 16 until the movable contact piece 16 is separated from the fixed contact piece 17 by the operation element 14. Since the insulators 20 and 21 are provided, even if a charged user's hand touches the cover 3, static electricity is transferred from the movable contact piece 16 through the fixed contact piece 17 to the memory card 4 by the operation element 14. The memory card 4 can be prevented from flowing and being electrically destroyed. Further, since the operation element 14 is structured to electrically connect the operation element 14 to the movable contact piece 16 when the movable contact piece 16 is separated from the fixed contact piece 17, the cover 3 is connected to the ground thereafter. Can do.

It is a perspective view which shows the Example of the hinge cover type memory card connector which concerns on this invention. It is a perspective view in the state where the cover was opened by the hinge cover type memory card connector. It is a perspective view of the state which opened the cover of the hinge cover type memory card connector, and inserted the memory card. It is a disassembled perspective view of the hinge cover type memory card connector. (A) and (B) are diagrams illustrating the structure and operation of a switch used in this example. (A) and (B) are other structures and operation explanatory views of the switch used in this example.

DESCRIPTION OF SYMBOLS 1 Connector housing 2 Opening part 3 Cover 4 Memory card 5 Recessed part 6 Signal contact 6a Contact part 6b Connection terminal part 7 and 8 Window 9a and 9b Arm 10a and 10b Rotation center axis 11a and 11b Arm 12a and 12b Long hole 13a and 13b Hinge 14 operation element 15 groove 16 movable contact piece 17 fixed contact piece 17a terminal part 17b holding part 18 switch 19 contact 19a earthing terminal part 20 and 21 insulator

Claims (1)

A resin connector housing that detachably accommodates the memory card from the opening is attached to the circuit board, and the opening of the connector housing is supported by the connector housing so as to be openable and closable via a hinge. A hinge cover type memory card connector having a structure in which the cover is slid along the surface of the connector housing and usable in this state.
The cover is made of metal, and a metallic operation element that is inserted into the connector housing when the cover is closed protrudes from the cover.
The connector housing is provided with a switch comprising a movable contact piece adjacent to a position where the operation element is inserted and a fixed contact piece that is in contact with the movable contact piece during standby, and the movable contact piece includes the circuit. Connected to the grounding part of the board, the fixed contact piece is connected to the plus side of the circuit board, the detection circuit of the cover works when the switch is opened from the closed,
When the cover is slid, the movable contact piece is operated by the operation element, and the switch is opened away from the fixed contact piece,
Either or both of the movable contact piece and the operation element are arranged so that the operation element is not electrically contacted with the movable contact piece until the movable contact piece is separated from the fixed contact piece by the operation element. The hinge is characterized in that the operation element is configured to electrically connect the operation element to the movable contact piece after the movable contact piece is separated from the fixed contact piece. Cover type memory card connector.

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