JP5013300B2 - Card connector with half-insertion status detection switch - Google Patents

Description

  The present invention relates to a card connector used for an IC card, an SD card, a memory card, and the like, and relates to a card connector with a card half-insertion state detection switch having a switch for detecting a half-insertion state of the card.

  Conventionally, in this type of card connector, even when the card is not completely inserted into the card insertion portion of the connector, that is, even when the card is in a half-inserted state, A switch equipped with a switch has been developed (for example, Patent Document 1).

  This conventional card connector is provided with a switch that is turned ON / OFF by the operation of a dust entry prevention shutter provided at the entrance of the card insertion portion, and is rotated in a direction in which the shutter is pushed open by insertion of the card. The shutter is integrally provided with a switch operation operator. On the other hand, a switch mechanism accommodating space is provided in the side wall portion of the connector housing, and an operation side contact spring constituting the switch and a non-operation side contact spring are incorporated in the arrangement facing the switch housing so that a normally open type switch is provided. It is configured.

  Then, when the card is inserted and the shutter is rotated in the opening direction, the operation element pushes the operation side contact spring toward the non-operation side contact spring, and the two contact springs come into contact with each other to turn on the switch. Like to do.

JP 2004-139212 A

  The conventional card connector with a half-insertion state detection switch described above includes a switch composed of an operation-side contact spring and a non-operation-side contact spring, and an operation element for operating the switch is provided integrally with the shutter. Therefore, there are problems that the number of parts is large and the manufacturing cost is high.

  Further, the operation side contact spring and the non-operation side contact spring are accommodated in a switch space provided in the side wall of the housing, and the space is used to secure the operation stroke of the operation side contact spring. Since there is a need for a clearance space on the back of the non-operation side contact spring, there is a problem that a large space is required to accommodate the switch mechanism, and the housing must be enlarged accordingly. .

  In view of such a conventional problem, the present invention achieves cost reduction by reducing the number of parts compared to the conventional product, and the required space for the switch mechanism is reduced compared to the conventional product, and the housing is downsized. The purpose of the present invention is to provide a card connector with a half-inserted card state detection switch.

  In order to solve the conventional problems as described above and achieve the intended object, the feature of the invention according to claim 1 is that the card is inserted into the opening of the card insertion portion of the housing mounted with the bottom surface facing the substrate. A card connector with a card half-insertion state detection switch, comprising a shutter that is pushed down by a card inserted into the insertion portion, and a detection switch that is activated by a push-down operation of the shutter. And the contact piece portion constituting the detection switch is provided in the shutter, and the contact piece portion is electrically connected to the switch pattern of the substrate through the window hole when the shutter is pushed down by card insertion. It is to be done.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect, an operation-side contact spring that is connected to the contact piece is provided on the back surface of the shutter, and the switch pattern on the substrate is provided in the window. The operation-side contact spring is inserted into the window hole so as to come into contact with the switch pattern of the substrate by exposing the hole to the shutter and pushing the shutter with the card.

  According to a third aspect of the present invention, in addition to the configuration of the second aspect, the shutter is formed of a conductive metal material, a part of the shutter is used as the contact piece, and the operation side is integrated with the shutter. The contact spring is formed.

  According to a fourth aspect of the present invention, in addition to the configuration of the second aspect, the shutter is formed of an insulating synthetic resin material, and a contact piece portion integrally including the operation side contact spring is embedded in the shutter. There is in being.

  According to a fifth aspect of the present invention, in addition to the configuration according to any one of the second to fourth aspects, the conductive material mounted in the state of being inserted into the window hole with respect to the switch pattern of the substrate. When the shutter is pushed down by card insertion, the operation-side contact spring is conducted to the switch pattern on the substrate through the piece member in the window hole. There is.

  According to a sixth aspect of the present invention, in addition to the configuration of the first aspect, an operated-side contact member integrally having a contact spring piece is mounted on the switch pattern of the substrate, and the operated-side contact member The contact spring piece portion is exposed to the bottom surface of the card insertion portion through the window hole, and provided with a contact piece portion integrally with the back surface of the shutter, and when the shutter is pushed down by card insertion, The contact piece is connected to the contact spring piece of the operated side contact member.

  The card connector with a card half-insertion state detection switch according to the present invention, as described above, includes a window hole on the bottom surface of the card insertion portion near the shutter, and a contact piece that constitutes the detection switch on the shutter. With this kind of conventional card half-insertion state detection switch, when the shutter is pushed down by card insertion, the contact piece portion is made conductive through the window hole to the switch pattern of the substrate. Compared to the card connector, the switch itself and parts for operating the switch are reduced, and the space for accommodating the switch is extremely small compared to the conventional one, which greatly contributes to the miniaturization of the connector.

  Further, in the present invention, an operation side contact spring that is conducted to the contact piece portion protrudes from the back surface of the shutter, and the switch pattern of the substrate is exposed in the window hole, and the shutter is pushed down by the card. The operation side contact spring is inserted into the window hole so as to come into contact with the switch pattern of the board, thereby reducing the number of parts dedicated to the switch and half-inserting the card with a simple structure that does not take up space A detection switch can be configured.

  In the present invention, the shutter is formed of a conductive metal material, a part of the shutter is used as the contact piece portion, and the operation side contact spring is formed integrally with the shutter, whereby the shutter and the movable contact piece are formed. They can also be used, can be manufactured easily, and the number of parts can be reduced.

  In the present invention, the shutter is formed of an insulating synthetic resin material, and a contact piece portion integrally including the operation side contact spring is embedded in the shutter to provide insulation between the front surface and both ends of the shutter. When necessary, it can respond effectively.

  In the present invention, with respect to the switch pattern of the substrate, comprising a conductive piece member mounted in a state of being inserted into the window hole, when the shutter is pushed down by card insertion, the operation side contact spring, By being connected to the switch pattern of the substrate through the piece member in the window hole, the protruding height of the contact spring can be reduced, and the overall thickness of the shutter in the front-rear direction can be reduced. Becomes easy.

  Furthermore, in the present invention, an operated contact member having a contact spring piece integrally formed with the switch pattern on the substrate is mounted, and the contact spring piece of the operated contact member is inserted into the card through the window hole. A contact piece that is exposed on the bottom surface of the shutter and integrally formed with the back surface of the shutter, and when the shutter is pushed down by card insertion, the contact piece on the back surface of the shutter is the contact spring of the operated contact member. By making it conduct to one part, the shape of the shutter can be further simplified and the manufacture becomes easy.

FIG. 5 is a perspective view showing a card connector with a half-inserted state detection switch according to the present invention, in a state where a shield cover on the upper surface of the mold case constituting the housing is removed. It is a top view of the mold case part which removed the shield cover same as the above. FIG. 2 is a perspective view of a shutter used in the card connector shown in FIG. It is a partial expanded sectional view which shows the operation state of the shutter part in the card connector shown in FIG. It is a partial expanded sectional view which shows the operation state of the shutter part in the card connector of the other Example of this invention. It is a partial expanded sectional view which shows the operation state of the shutter part in the card connector of the further another Example of this invention. It is a cross-sectional view of the shutter used for the card connector. It is a partial expanded sectional view which shows the operation state of the shutter part in the card connector of the further another Example of this invention.

  Next, embodiments of the present invention will be described based on the embodiments shown in the drawings.

  In the figure, A is a housing and B is a memory card. The housing A is composed of a mold case 1 molded with an insulating synthetic resin material and a shield cover 2 assembled so as to cover the upper surface thereof. A card insertion portion 3 is formed on the upper surface of the mold case 1. The card insertion portion having an insertion opening opened on the front surface of the mold case 1 is formed by closing the upper surface with the shield cover 2.

  In the mold case 1, a slider 5 for operating the card B in the pushing direction in one side wall 1a is incorporated so as to be slidable in the card loading / unloading direction. 1 is biased in the pushing direction by a return spring 6 interposed between the rear wall 1b and the back wall 1b.

  A card abutting arm portion 5a is integrally formed on the side surface of the slider 5 in a direction transverse to the card insertion portion 3, and a heart cam type push-in push-out mechanism (push push push mechanism) is formed on the upper surface of the slider 5. A pin guide groove 7 constituting a mechanism) is formed.

  In this pin guide groove 7, a downward guide portion 8 a at the tip of a guide pin 8 whose base end side is rotatably supported with respect to the upper surface of the side wall 1 a of the mold case 1 is inserted.

  The guide pin 8 is configured such that the tip of the downward guide portion 8a is urged toward the bottom side of the pin guide groove by a spring piece 9 for pushing down formed by punching out the shield cover 2.

As a result, the slider 5 is pushed inward by the pushing operation by the card B, stops at the pushing side by the interaction between the guide pin 8 and the pin guide groove 7, and is pushed by the pushing operation of the card B again. Is released, and is pushed out by the return spring 6 to return to the original standby position, and the card B is pushed out together with this.
In the figure, reference numeral 10 denotes a contact spring that contacts the signal transmission terminal portion of the card B, and is arranged in such a manner that the tip portion floats from the bottom surface of the card insertion portion 3.

  The floating height of the tip of the contact spring may be set so that the tip contacts the bottom surface of the slider 5 when the card B is not inserted. With this setting, when the slider 5 is pushed in by the card B and when it is pushed out by the return spring 6 and returned to the original standby position, the tip of the contact spring and the bottom surface of the slider 5 slide. In other words, if foreign matter is attached to the tip of the contact spring, it can be effectively removed.

  Further, in the figure, reference numerals 11 and 12 are card insertion state detection switches provided within the thickness of the other side wall 1c of the mold case 1. Each of the switches 11 and 12 includes an operation-side contact spring 13 having an operation portion 13a protruding into the card insertion portion 3, and a non-operation-side contact spring 14 provided in an arrangement facing the switch. Also, when the operation unit 13a is pushed to the side by the inserted card B, the contact springs 13 and 14 come into contact with each other, thereby detecting the inserted state of the card.

  The opening of the card insertion part 3 of the housing 1 is provided with a shutter 20 for opening and closing it. When the card B is not inserted, the shutter 20 is biased so as to rise from the bottom surface of the mold case 1 as shown by a solid line in FIG. 4, and when the card B is inserted, As indicated by a provisional line in the figure, the leading edge of the card B is tilted to the back side of the card insertion portion.

  The shutter 20 is formed by punching and bending a conductive metal plate material. As shown in FIGS. 1 to 3, the shutter 20 has a rectangular main body portion 21 having a size for closing the opening of the card insertion portion 3. The flange-shaped reinforcing ribs 22 and 22 are integrally formed by bending both upper and lower edges thereof to the back side. The shutter 20 itself is a contact piece for constituting a detection switch described later.

  U-shaped bearing portions 23, 23 are formed below both ends of the main body portion 21, and the bearing portions 24, 23 formed integrally with both side walls 1 a, 1 c of the mold case 1, 24 is fitted. A return spring 25 made of a string spring is fitted on the outer periphery of one of the bearing portions, and thereby, the main body portion 21 is biased to the upright side.

  In the vicinity of the back side of the shutter 20 on the bottom surface of the mold case 1 is formed a window hole 33 that is vertically opened and opened. A card detection switch 30 that is turned on through the window hole 33 when the shutter 20 is tilted is provided. Is provided.

  The switch 30 includes a pair of operation-side contact springs 31, 31 that are cut and raised together by punching out the main body 21 of the shutter 20 and a pair of fixings exposed in the window hole 33 on the bottom surface of the card insertion portion of the mold case 1. When the shutter 20 is tilted, the spring pieces 31 and 31 come into contact with the fixed-side contact portions 32 and 32, respectively, and both the fixed-side contactors 32 and 32 are connected via the shutter main body 21, respectively. The switch is turned on by conducting between 32.

In this example, the fixed-side contact portions 32 and 32 are configured by a pattern wired on the surface of the substrate 34 on which the housing A of the card connector with a half-inserted state detection switch is mounted. When the card is inserted and the shutter 20 is tilted to the rear side (back side), the operation side contact springs 31, 31 protruding from the back of the shutter are inserted into the window hole 33, and the fixed contact portion 32 and 32 are brought into contact with each other.
The substrate 34 is mainly preferably PCB, but various other substrates such as FPC, FFC, MID, ceramic substrate, and laser patterning can be used.

  Further, the fixed-side contact portion 32 may be constituted by a piece member 35 having a U-shaped cross section formed with a conductive metal piece as shown in FIG. 5. In this case, the piece member 35 is disposed in the window hole 33. And the upper surface is exposed as a fixed-side contact portion 32 in the window hole 33.

  Further, in this example, the shutter 20 is formed of a conductive metal material and is used as a contact piece that constitutes the detection switch. However, when the shutter needs to have insulation, 6. As shown in FIG. 7, the main body portion 21 is formed of an insulating material, and a conductive piece 36 constituting a contact piece portion in which a pair of operation side contact springs 31 and 31 are integrally formed is embedded by insert molding. But you can.

  In the above-described examples, the operation side contact spring 31 is protruded on the shutter side. However, as shown in FIG. 8, the contact spring is not provided on the shutter 20 on the shutter 20 as shown in FIG. You may make it install the contact 40 which has the part 40a. In this case, the contact 40 is provided with a plate-like terminal portion 40b, which is fixed by soldering to the pattern of the substrate 34, and the contact spring portion 40a passes through the window hole 33 to the bottom surface of the card insertion portion 3. Expose.

  On the other hand, the shutter 20 is provided with a conducting portion 41 for constituting a contact piece portion that comes into contact with the contact spring portion 40a by being pushed down by insertion of a card. The conductive portion 41 can be the conductive portion 41 when the entire shutter is formed of a conductive metal material.

  Further, when it is necessary to provide the shutter 20 with an insulating property, an insulating synthetic resin material may be used for the shutter, and a conductive portion made of a conductive gold material may be integrally provided by insert molding.

  In this way, the shutter 20 itself is used as a contact piece, or the contact piece provided on the shutter is brought into contact with the pattern of the substrate through the window hole 33 on the bottom surface of the card insertion portion. By configuring the detection switch to be conducted, half-insertion of the card with the shutter 20 in the tilted state is properly detected, and no special space is required for incorporating a switch component for the detection. Therefore, the housing can be downsized accordingly.

A Housing B Memory card 1 Mold case 1a Side wall 1b Back wall 1c Side wall 2 Shield cover 3 Card insertion part 5 Slider 5a Card contact arm part 6 Return spring 7 Pin guide groove 8 Guide pin 8a Downward guide part 9 Spring piece 10 Contact spring 11, 12 Card insertion state detection switch 13 Operation side contact spring 13a Operation part 14 Non-operation side contact spring 20 Shutter 21 Body part 22 Reinforcement rib 23 Bearing part 24 Support shaft 25 Return spring 2
30 Card detection switch 31 Operation side contact spring 32 Fixed side contact part 33 Window hole 34 Substrate 35 Piece member 36 Conductive piece 40 Contact 40a Contact spring part 40b Terminal part

Claims (6)

A card half comprising a shutter that is pushed down by a card inserted into the card insertion portion at the opening of the card insertion portion of the housing that is mounted with the bottom surface facing the substrate, and a detection switch that is activated by a push-down operation of the shutter. In the card connector with insertion state detection switch,
A window hole is formed in the bottom surface of the card insertion portion in the vicinity of the shutter, and the shutter includes a contact piece portion constituting the detection switch,
A card connector with a card half-insertion state detection switch, characterized in that, when the shutter is pushed down by inserting a card, the contact piece is electrically connected to the switch pattern on the substrate through the window hole.   An operation side contact spring that is conductively connected to the contact piece is provided on the back surface of the shutter, and the switch pattern of the substrate is exposed in the window hole. The card connector with a card half-insertion state detecting switch according to claim 1, wherein the card connector is inserted into the window hole so as to come into contact with a switch pattern on the board.   The card half-insertion state detection switch according to claim 2, wherein the shutter is formed of a conductive metal material, a part of the shutter is used as the contact piece, and the operation-side contact spring is formed integrally with the shutter. Card connector with.   The card connector with a half-insertion state detection switch according to claim 2, wherein the shutter is formed of an insulating synthetic resin material, and a contact piece portion integrally including the operation side contact spring is embedded in the shutter.   A conductive piece member mounted in a state of being inserted into the window hole with respect to the switch pattern of the substrate, and when the shutter is pushed down by inserting a card, the operation side contact spring is disposed in the window hole. The card connector with a half-insertion state detection switch according to any one of claims 2 to 4, wherein the card connector is electrically connected to the switch pattern on the substrate through the piece member.   An operated contact member having a contact spring piece integrally formed on the switch pattern of the substrate is mounted, and the contact spring piece of the operated contact member is exposed to the bottom surface of the card insertion portion through the window hole. In addition, a contact piece portion is provided integrally with the back surface of the shutter, and when the shutter is pushed down by card insertion, the contact piece portion of the shutter back surface is electrically connected to the contact spring piece portion of the operated side contact member. The card connector with a card half-insertion state detection switch according to claim 1 configured as described above.

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