JP4247343B2 - Card connector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a card connector used for an IC card, an SD card, a memory card, and the like.
[0002]
[Prior art]
With the card connector, for example, if the memory card is pulled out while data is being written to the memory card, the data may be damaged, and the memory card is inserted or the memory card is ejected. It is necessary to detect whether it is present. For this reason, for example, as disclosed in Japanese Patent Application Laid-Open No. 2002-110297, the main focus is on an invention for detecting a state where a card is completely loaded in a connector or a state where a card is completely ejected from a connector. It was. Further, the card connector disclosed in Japanese Patent Application Laid-Open No. 8-50962 is used to prevent interference with an ongoing process due to insertion or removal of an IC pack from the connector, and warns whether an IC pack necessary for the process is inserted. Therefore, as the IC pack is inserted into the connector, the switch disposed in the IC pack insertion path is directly responsively operated.
[0003]
[Problems to be solved by the invention]
When a card connector and an electronic device including the card connector are mounted on a vehicle (or an aircraft, a ship, etc.), from the viewpoint of effective use of space, a display device for a car nevigator prepared in the center of the instrument panel (in an aircraft, a ship) In some cases, the card connector is housed in the back space of a video display device or the like prepared in the center of the seat back portion. That is, the card connector may be hidden behind the display device. In this case, when the card is inserted / removed, the display device is swung or slid to open the back space formed in the instrument panel (or seat back) and to access the card connector. When inserting or exchanging the card, the card is not completely loaded in the connector, and when the display device is swung or slid in the half-inserted state to close the back space, the card protrudes from the connector. There is a possibility that the display device collides with the card and damages the card or the display device may be damaged.
[0004]
However, in the conventional card connector, when the card is caught in a state where it is inserted slightly or halfway and remains in the card connector, it cannot be detected. Therefore, an object of the present invention is to provide a card connector that can reliably detect a state in which a card remains in the card connector, whether it is complete or halfway.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, in the present invention, the housing 4 is formed with an elongated insertion slot 5 into which the card C is inserted and removed, and is formed into an elongated plate shape so as to close the insertion slot 5, and is formed at both ends in the longitudinal direction. A formed shaft 61 is pivotally supported by the housing 4. Normally, the insertion slot 5 is closed, and when the card C is inserted into the insertion slot 5 , a shutter 6 that is pushed open by the card C , and the shutter 6 A card detection piece (lever 63) provided at one end in the longitudinal direction and displaced integrally with the opening and closing of the shutter 6 , and the lateral side of the card C inserted into the insertion port 5 in the housing 4 is disposed, and a card remaining detection switch 7 for detecting the displacement of the card detection pieces 63, the card detection pieces 63, removal side of the card C with respect to the rear surface of the shutter 6 in the closed state The card remaining detection switch 7 is disposed in the vicinity of the pressing part 64 and is pressed by the pressing part 64 and bent when the shutter 6 is pushed open by the card C. The pressure receiving piece 71 and the pressure receiving piece 71 are arranged at a distance from the pressure receiving piece 71 in the thickness direction of the card C accommodated in the housing 4, and when the pressure receiving piece 71 is pressed by the pressing portion 64 and bent, the pressure receiving piece is received. It has the contact piece 72 which contacts the piece 71. FIG . This makes it possible to reliably detect whether the card remains in the card connector, whether it is complete or halfway. Further, an increase in the height dimension of the card connector can be avoided.
[0006]
The card C, in one of the width direction of the front edge portion of the insertion direction with respect to the insertion slot 5 has a cutout corner C2 that was missing card corner, to the housing 4, inserted into the insertion slot 5 a slider 44 which moves by being pressed by the notch corner C2 of the card C is provided on one of the width direction of the card C, the slider 44, with the notch corner C2 of the card C when the card is loaded It is pushed and locked at the back position in the card insertion direction, and when pushing the card again in the card insertion direction when the card is ejected, the lock is released and the push push type loading / ejecting operation is performed to eject the card. There, the card detection pieces 63, the above slider 44 located on the opposite side in the width direction of the card C, provided at one end in the longitudinal direction of the shutter 6, the upper Card residual detection switch 7, and the slider 44 located on the opposite side in the width direction of the card C, it is preferably provided in the housing 4.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0008]
FIG. 1 is an external perspective view of a card connector as an embodiment according to the present invention, and also shows a card and its insertion direction. FIG. 2 is a perspective view showing a state where a cover and a housing of the card connector of the embodiment of FIG. 1 are removed. FIG. 3 is a sectional view taken along the card remaining detection switch of the embodiment of FIG. FIG. 4 is a partial perspective view showing the relationship between the card remaining detection switch and the shutter in the card connector of the embodiment of FIG.
[0009]
1 and 2, the card connector 1 includes a housing 4 whose upper surface is covered with a cover 2, a plurality of main terminals 3 that can be pressed into contact with a contact C <b> 3 of the card C, a shutter 6 in the vicinity of the insertion slot 5, and the like. The card remaining detection switch 7 is also housed with a write detection switch 8, a card detection switch 9, a slider 44, and the like.
[0010]
Each main terminal 3 is housed in a groove of the housing 4, an attachment part 3 a for attaching to the groove, a terminal part 3 b soldered to a wiring pattern such as a board extending from the groove, and elasticity extending to the other side. The arm portion 3c has a contact portion 3d that contacts a contact C3 (described later) of the card C provided at the tip of the arm portion 3c.
[0011]
The shutter 6 has a shaft 61 that is held by the housing 4, and is rotatable and normally stands substantially vertically, and closes the insertion slot 5 to prevent dust from entering the connector. . A shaft spring 62 wound around the shaft 61 urges the shutter in the upright direction, that is, in the closing direction. A lever 63 is formed on the side surface of the shutter 6 as a card detecting piece coaxially here.
[0012]
The card remaining detection switch 7 includes a pressure receiving piece 71 pressed by a lever 63 as a card detection piece formed coaxially with the shutter 6 and a contact piece 72 in contact with the pressure receiving piece 71 pressed by the lever 63. Has been.
[0013]
The write detection switch 8 is arranged in the depth direction of the card remaining detection switch 7 so as to correspond to the write switching button C1 of the card C. The card detection switch 9 is a switch for detecting that the card C is completely loaded in the connector 1 and is arranged at the innermost part. These switches are arranged on one side of the insertion slot 5, that is, on the left side. At the back of the housing 4 on the other side of the insertion slot 5, there is a slider 44 that can move horizontally within the connector 1 upon receipt of the card C, and a heart cam (not shown) and the pin 41 cooperate to push- Push type (for example, as disclosed in Japanese Patent Application Laid-Open No. 2000-148927, when the card C is loaded, the card is simply pushed and locked, and at the time of ejection, the card is simply pushed and unlocked. In addition, a known method that can be ejected) is implemented. Compression coil spring in the back (not shown) of the scan La Ida 44 is a power source when the ejecting operation is provided. The card removal prevention metal fitting 43 is a metal fitting for preventing a loaded card from coming out carelessly, and this is also a known configuration.
[0014]
On the left side of FIG. 1, a conventionally used card C is shown. The card C has a planar quadrilateral shape, and a notch angle C2 is provided at the right back according to the standard. A write switching button C1 is provided on the side surface, and a plurality of contacts C3 are provided on the back surface.
[0015]
In FIG. 1, the card C is inserted from the front end surface C5 in the direction indicated by the white arrow E from the insertion port 5 provided in the housing 4. A shutter 6 is disposed on the front surface of the insertion slot 5, and when the card C enters the connector 1, the front end surface C5 of the card abuts the shutter 6, and the shutter is moved around the shaft 61 at the lower end. 6 is rotated, and this is pushed inward to advance. Even in a state where the card is completely loaded in the connector, the shutter 6 is held in an open state where the shutter 6 is pushed down by the card C. The role of the shutter 6 is to prevent dust from entering, but in the open state in which the card is inserted, entry of dust is prevented by the card itself.
[0016]
As shown in FIGS. 3 and 4, a card detection piece, that is, a lever 63 is coaxially formed at the left end of the shutter 6 so that the card C enters the connector 1 and the shutter 6 is inward. If it falls down, the lever 63 also falls inward in synchronization. When the card remaining detection switch 7 in the housing 4 in the vicinity of the lever 63 rotates the shutter 6 and the lever 63 as the card C enters, the pressing portion 64 at the tip of the lever 63 contacts the tip of the pressure receiving piece 71. When the pressure receiving piece 71 contacts the contact piece 72, the card remaining detection switch 7 is closed and the remaining card can be detected.
[0017]
In the above embodiment, if the card C enters the connector 1 even a little, the shutter 6 and the lever 63 are tilted inward at that moment, and the card remaining detection switch 7 is turned on. Regardless of, the presence of the card can be detected reliably.
[0018]
As a result, it is possible to avoid a situation in which the display device that swings or slides interferes with the card that remains in the connector halfway.
[0019]
The detection piece 63 may be on either the left or right side of the housing 4. However, since the side surface of the card C where the notch angle C2 is inserted may have a range in which the card remaining detection switch cannot be detected due to its arrangement, the notch angle C2 is not as in the above embodiment. It is desirable to place a card remaining detection switch on the opposite side when inserted.
[0020]
Further, in the case of the card connector, although the increase in its height is extremely disliked, according to the present embodiment, the card detection piece (such as the lever 63) is integrated with the shutter 6, that is, in the width direction of the connector. Since it could be provided, the dimension increase in the height direction can be made zero. Incidentally, if a detection piece (lever 63 or the like) is provided on the bottom surface of the cover 2 or the card connector, the height increases.
[0022]
By detecting the remaining state with the above configuration, it is possible to warn that the card is inserted in the connector in a halfway state, or to prevent the display device from sliding or swinging.
[0023]
【The invention's effect】
As described above , according to the card connector of the present invention, it is possible to reliably detect the state in which the card remains in the card connector, whether it is complete or halfway. Further, an increase in the height dimension of the card connector can be avoided.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a card connector according to an embodiment of the present invention, and also shows a card and its insertion direction.
2 is a perspective view showing a state where a cover and a housing of the card connector of the embodiment of FIG. 1 are removed. FIG.
FIG. 3 is a cross-sectional view taken along the card remaining detection switch of the embodiment of FIG. 1;
4 is a partial perspective view showing a relationship between a card remaining detection switch and a shutter in the card connector of the embodiment of FIG. 1; FIG.
[Explanation of symbols]
1 card connector, 2 cover, 3 main terminal, 3a mounting part, 3b terminal part, 3c arm part, 3d contact part, 4 housing, 5 insertion slot, 6 shutter, 7 card remaining detection switch, 8 write detection switch, 9 card Detection switch, 41-pin, 43 card removal prevention bracket, 44 slider, 61-axis, 62-axis spring, 63 card detection piece (lever), 64 pressing part, 71 pressure-receiving piece, 72 contact piece, C card, C1 write switching button, C2 Notch angle C3 Contact C5 Tip surface.

Claims (2)

A housing formed with an elongated insertion slot into which a card is inserted and removed;
It is formed in a long and narrow plate shape so as to close the insertion slot, and the shafts formed at both ends in the longitudinal direction are pivotally supported by the housing. Normally, the insertion slot is closed and the card is inserted into the insertion slot. A shutter that is pushed open by the card;
A card detection piece provided at one end in the longitudinal direction of the shutter and displaced integrally with the opening and closing of the shutter;
A card remaining detection switch disposed in the housing in the width direction side of the card inserted in the insertion slot and detecting the displacement of the card detection piece ;
The card detection piece has a pressing portion that is depressed in the card removal direction with respect to the back surface of the shutter in the closed state,
The card remaining detection switch
A pressure receiving piece that is arranged in the vicinity of the pressing portion and is bent by being pressed by the pressing portion when the shutter is pushed open by the card;
A contact piece that is arranged at a distance from the pressure receiving piece in the thickness direction of the card accommodated in the housing and that comes into contact with the pressure receiving piece when the pressure receiving piece is pressed and bent by the pressing portion; Card connector characterized by. The card has a notch angle in which a card corner is missing on one side in the width direction of the front edge in the insertion direction with respect to the insertion slot,
In the housing, a slider that moves by being pressed by the notch angle of the card inserted into the insertion slot is provided on one side in the width direction of the card,
When the card is loaded, the slider is pushed at the notch angle of the card and locked at the back side in the card insertion direction. When the card is pushed again in the card insertion direction when the card is ejected, the lock is released and the card is released. A push-push type loading / ejecting operation is performed.
The card detection piece is located on the opposite side of the card in the width direction of the card, and is provided at one end in the longitudinal direction of the shutter,
The card connector according to claim 1, wherein the card remaining detection switch is provided in the housing so as to be located on a side opposite to the slider in the width direction of the card.

Images