TWI566268B - Card switch - Google Patents

Description

Card switch

The present invention relates to a card switch, and more particularly to a card switch for detecting the insertion and removal of a card.

A card switch for detecting the insertion and removal of a card is disclosed in Japanese Patent No. 2789891 (hereinafter referred to as "Document 1"). The card type switch described in the document 1 has a loading and unloading detecting mechanism for sensing the loading and unloading state of the card key for the door lock, and the power control mechanism is output according to the loading and unloading detecting mechanism. Install the off signal and connect or block the power to the indoor load. The card case is formed in a front surface of a substrate mounted on a wall surface to form a pocket portion having an opening. The card key is formed to be inserted into the card case through the opening of the pocket.

The detachment detection mechanism is formed using a microswitch having a protruding actuator in the card case. Therefore, in this card type switch, when the card key is inserted into the card case, the micro switch is activated by pushing the actuator with the card key, and it is sensed that the card key has been mounted. Further, in the card type switch, the card key is sensed by closing the micro switch.

In the above conventional card type switch, since the amount of movement of the actuator depends on the thickness of the card key (card), if the thin card key is used, the actuator cannot be sufficiently pushed, and the micro switch may not operate normally. doubt. Therefore, in order to allow the actuator to be pushed sufficiently even by a thin card key, it is considered that the top of the actuator is more convex than the track of the card key.

However, in the above conventional card type switch, the card key insertion direction intersects with the moving direction of the actuator. Therefore, when the top of the actuator is made more convex than the track of the card key, the push of the card key may not be transmitted to the actuator, and there is a fear that the actuator cannot be moved.

[Summary of the Invention]

In view of the above problems, an object of the present invention is to provide a card switch that can normally detect the insertion and removal of a card even if the thickness of the card is thin.

The card switch of the present invention comprises: a box body having an insertion port into which the card can be inserted; and a detecting portion detecting whether the card is inserted into the insertion port, the detecting portion comprising a switch having: a contact; a housing And accommodating the contact; and the rod protruding from the housing, the contact opening and closing along with the rotation of the rod. A portion of the rod is characterized by being adjacent to a track on which the card is inserted and removed, the rotating track of the rod being along the direction in which the card is inserted and removed.

In the present invention, the rotating track of the rod of the opening and closing contact is along the track of the inserted and removed card. Therefore, even if the leading end of the bar corresponding to the thin card is more convex than the track of the card, the lever can be rotated by the insertion of the card. Therefore, with the present invention, even if the thickness of the card is thin, the insertion and removal of the card can be normally detected.

1‧‧‧ card switch

2‧‧‧ cards

3‧‧‧Box

30‧‧‧ Cover

30a‧‧‧Top

30b‧‧‧ front

300‧‧‧ insertion port

301‧‧‧ mark

302‧‧‧Installation claws

303‧‧‧1st rib

304‧‧‧2nd rib

31‧‧‧ Subject

310‧‧‧Installation Department

311‧‧‧ window hole

4‧‧‧ body

40‧‧‧Substrate

41‧‧‧ switch

410‧‧‧shell

411‧‧‧ rod

412a, 412b‧‧‧ fixed joints

413‧‧‧Common joints

414‧‧‧ movable slice

42‧‧‧ Hub

420‧‧‧ internal thread

5‧‧‧Installation box

50‧‧‧ openings

51‧‧‧1st mounting hole

52‧‧‧2nd mounting hole

53‧‧‧3rd mounting hole

6‧‧‧Decorative board

60‧‧‧ openings

7‧‧‧Mounting screws

Hereinafter, preferred embodiments of the present invention will be described in detail. Other features and advantages of the present invention will become more apparent from the following detailed description and appended claims.

Fig. 1A is a cross-sectional view showing a card switch according to an embodiment of the present invention; and Figs. 1B and 1C are views showing an operation of a card switch according to an embodiment of the present invention.

Fig. 2A is an exploded perspective view of a card switch according to an embodiment of the present invention; and Fig. 2B is a perspective view of a card switch according to an embodiment of the present invention.

Fig. 3A is a perspective view of the cover of the card switch of the embodiment of the present invention as seen from the front side; Fig. 3B is a perspective view of the cover of the card switch of the embodiment of the present invention as seen from the back side.

Hereinafter, the card switch 1 according to the embodiment of the present invention will be described using a drawing. Moreover, in the following description, the direction of the up, down, left, and right, and the direction of the front and rear are limited by the arrow shown in FIG. 2A. As shown in FIGS. 1A to 1C, the card switch 1 of the present embodiment includes: a card 2; a case 3; a body 4; and a mounting frame 5 (refer to FIG. 2A); And decorative panel 6 (refer to Figure 2A).

The card 2 has a rectangular plate shape and is formed to be insertable into the size of the insertion opening 300 of the casing 3 to be described later.

The casing 3 is for accommodating the card 2, and the cover 30 and the main body 31 are coupled to each other. The cover 30 is a resin molded article, and is formed into a flat case having one side (back) opening. As shown in FIG. 3A, an insertion opening 300 for opening a strip in the left-right direction is provided on one surface (top surface) 30a of the cover 30. Further, as shown in Fig. 1A, one face 30a of the cover 30 provided with the insertion opening 300 is inclined toward the installation surface of the card switch 1. With this configuration, the card 2 can be easily inserted into the insertion opening 300.

As shown in FIG. 3A, on the front surface 30b of the cover 30, a mark 301 for displaying an inverted triangle in the direction in which the card 2 is inserted and removed is provided. Further, the mark 301 may be formed by embedding a light-emitting element such as an LED (not shown) in the cover 30. According to this configuration, the card switch 1 can be easily found by the mark 301 even when the surroundings are dim.

As shown in FIG. 3B, a pair of rearwardly projecting mounting claws 302 are integrally formed at the rear portions of the left and right side walls of the cover 30, respectively. Each of the attachment claws 302 is configured to be hooked to each of the attachment portions 310 of the main body 31 to be described later.

As shown in FIG. 3B, a pair of first ribs 303 and a pair of second ribs 304 are integrally formed on the inner wall (rear wall) of the cover 30. Each of the first ribs 303 and each of the second ribs 304 faces the card 2 inserted into the insertion opening 300 and protrudes rearward. Each of the first ribs 303 is provided at a lower central portion of the inner wall of the cover 30. That is, each of the first ribs 303 is provided along the insertion/removal direction on the side opposite to the insertion port 300 side in the insertion and removal direction of the card 2. Second rib The strips 304 are disposed on the left and right sides of each of the first ribs 303. In detail, the pair of second ribs 304 are disposed on both sides of each of the first ribs 303 along the insertion and removal direction of the card 2. Further, each of the second ribs 304 is longer than the first ribs 303 in the insertion and removal direction of the card 2. As shown in FIG. 1A, the ribs 303, 304 are inclined to the opposite side of the card 2 inserted into the insertion opening 300. With this configuration, since the card 2 inserted into the insertion opening 300 is inclined along the inclined surface of each of the ribs 303, 304, the card 2 can be easily taken out from the casing 3.

The main body 31 is formed into a plate-shaped resin molded article. As shown in FIG. 2A, mounting portions 310 of the mounting claws 302 of the cover 30 are respectively attached to the four corners of the front surface of the main body 31. In this manner, the cover 30 and the main body 31 are coupled to each other by hooking each of the mounting claws 302 to each of the mounting portions 310. Further, as shown in FIG. 1A, a window hole 311 for arranging the rod 411 of the switch 41 to be described later to the inside of the casing 3 is provided in the main body 31. Further, screw holes (not shown) in which the mounting screws 7 are inserted are provided at the four corners of the main body 31.

The body 4 is composed of a rectangular parallelepiped resin molded article having one opening (front surface). The body 4 is embedded and disposed by an opening (not shown) provided on a structural surface (not shown) such as a wall. A rectangular plate-shaped substrate 40 that can plug the opening thereof is disposed on the body 4. As shown in FIG. 2A, a pair of bottomed cylindrical boss portions 42 are integrally formed on the left and right walls of the body 4. Internal threads 420 that can be screwed to the mounting screws 7 are formed inside the respective hub portions 42. Moreover, the body 4 is provided with an insertion hole (not shown) for enabling an electric wire (not shown) or a signal line (not shown) which is first wired inside the structural surface to pass through the inside. . The signal line drawn back inside the body 4 by the insertion hole is connected to a transmission circuit to be described later.

As shown in FIGS. 1A to 1C, a switch 41 is mounted on one surface (front surface) of the substrate 40. In the card switch 1 of the present embodiment, a toggle switch is used as the switch 41. As shown in FIGS. 1A to 1C, the switch 41 is provided with a housing 410; Rod 411; contacts 412a, 412b, 413; and movable slice 414.

The casing 410 is composed of a casing, and houses therein two fixed contacts 412a and 412b, one common contact 413, and a movable slice 414. A portion of the rod 411 protrudes from the casing 410, and as shown in Fig. 1B, is formed in an elongated shape in a direction (front-rear direction) that intersects with the insertion and removal direction of the card 2. The rod 411 is configured to be rotated about the shaft end (not shown) by pressing the leading end (lower end) of the card 2, and the rail of the rod 411 is along the rail of the inserted and removed card 2. That is, the rotating track of the rod 411 is along the insertion and removal direction of the inserted and removed card 2. Further, in the card switch 1 of the present embodiment, as shown in FIG. 1B, the rod 411 is formed in a triangular shape as viewed in cross section. That is, the portion of the rod 411 that protrudes to the outside of the casing 410 is formed to have a base end side when viewed from a direction perpendicular to the thickness direction of the card 2 and the direction in which the card 2 is inserted and removed. A triangular profile that is narrower in width as it is closer to the apex side. However, the cross-sectional shape of the rod 411 is not limited to a triangle, and may be other shapes as long as it can be pressed by the card 2.

As shown in FIGS. 1B and 1C, the movable slice 414 is disposed in conjunction with one end (rear end) of the rod 411. The movable slice 414 is rotated along with the rod 411 at a position (opening position) between the fixed contact 412a and the common contact 413, and an open position between the fixed contact 412a and the common contact 413 ( Move between closed positions). In the card switch 1 of the present embodiment, the movable slice 414 is used to open and close the fixed contact (the upper fixed contact) 412a and the common contact 413 on one side. That is, the contacts 412a, 413 are opened and closed with the rotation of the rod 411.

When the lever 411 is pushed down by the card 2, the movable slice 414 is displaced upward and moved to the open position. Moreover, when the push caused by the card 2 is released and the lever 411 is moved upward, the movable slice 414 is lowered downward. Move to move to the closed position.

Further, in the card switch 1 of the present embodiment, a toggle switch having three contacts (two fixed contacts 412a and 412b and a common contact 413) is used as the switch 41, but it is also possible to use two contacts (1). A toggle switch of fixed contact 412a and common contact 413). Further, the switch 41 is not limited to the toggle switch, and a slide switch such as a slide switch can also be used. That is, the switch 41 only needs to have a rod 411 movable in the direction in which the card 2 is inserted and removed.

Although not shown in the drawing, a transmitting circuit is mounted on the substrate 40, and based on the detection result in the switch 41, the detection signal is transmitted to an external control device (not shown). The control machine can control loads such as indoor lighting (not shown) or television, air conditioning machines (not shown). When the card 2 is inserted into the insertion port 300 and the switch 41 is switched to be turned on, the transmitting circuit transmits a detection signal; and when the card 2 is taken out from the insertion port 300 and the switch 41 is switched off, the transmitting circuit stops transmitting the detection signal. . That is, the switch 41 detects whether the card 2 is inserted into the detecting portion of the insertion port 300 according to the opening and closing of the contacts 412a, 413. Further, in the card switch 1 of the present embodiment, as described above, the transmission circuit is mounted on the substrate 40, but there is no limitation as to which circuit is mounted on the substrate 40.

As shown in FIG. 2A, the mounting frame 5 is composed of a rectangular frame-shaped metal molded article. The mounting frame 5 has a rectangular opening 50 that exposes the substrate 40 of the body 4 at its center. The opening portion 50 is designed to cover the overall size of the main body 3. The first mounting hole 51 and the second mounting hole 52 are provided at four corners of the periphery of the opening 50, respectively. Each of the first mounting holes 51 is for attaching the case 3 and the body 4 to the mounting frame 5. That is, each of the first mounting holes 51 is aligned with each of the screw holes of the main body 31 and the internal threads 420 of the body 4, and the mounting screws 7 are respectively inserted and locked, whereby the case 3 and the body 4 can be mounted. Install box 5. Each of the second mounting holes 52 is used to A decorative panel 6 to be described later is attached to the mounting frame 5.

Further, as shown in FIG. 2A, third mounting holes 53 are provided on the upper and lower ends of the mounting frame 5 (only the third mounting holes 53 on the upper side are shown in the same figure). Mounting fittings (so-called snap fasteners) for attaching the mounting frame 5 to the structural surface are attached to the third mounting holes 53. The mounting frame 5 can be attached to the structural surface by sandwiching the peripheral portion of the opening of the structural surface between the hooks (not shown) and the mounting frame 5 that are hooked to the third mounting holes 53. Further, the method of attaching the mounting frame 5 to the structural surface is not limited to the above method, and other mounting methods may be used.

As shown in FIG. 2A, the decorative panel 6 is composed of a rectangular frame-shaped resin molded article. The decorative panel 6 has a rectangular opening 60 at the front of the body 4 at its center. The decorative panel 6 is formed to cover the entire size of the front surface of the mounting frame 5, that is, to be slightly larger than the mounting frame 5. Further, on the back surface of the decorative panel 6, four locking claws (not shown) which can be inserted into the respective second mounting holes 52 of the mounting frame 5 are integrally formed. Therefore, the decorative plate 6 can be attached to the mounting frame 5 by inserting the respective locking claws into the respective second mounting holes 52 and hooking them around the circumference of each of the second mounting holes 52.

Hereinafter, the operation of the card switch 1 of the present embodiment will be described using a drawing. First, when the card 2 is not inserted into the insertion port 300, or when it is not sufficiently inserted into the insertion port 300, as shown in FIG. 1B, the card 2 is not in contact with the rod 411 of the switch 41. At this time, the movable slice 414 is in the closed position, and since it is only in contact with the common contact 413, the switch 41 is closed. When the switch 41 is turned off, since the control signal is not transmitted from the card switch 1, the control machine does not control the load.

Next, if the card 2 is sufficiently inserted into the insertion port 300, as shown in Fig. 1C, since the tip end of the card 2 pushes the lever 411, the lever 411 is rotated counterclockwise. As a result, as the rod 411 rotates, the movable slice 414 moves upward, and the common contact 413 and the fixed contact 412a on one side are short-circuited by the movable slice 414. Thereby, the switch 41 is switched to be turned on. At this time, the detection signal is sent from the card switch 1 to the control device, and the control machine starts to control each load.

Thereafter, when the card 2 is withdrawn from the insertion port 300, the lever 411 and the movable slice 414 are restored to the original position (i.e., the position shown in Fig. 1B), and the switch 41 is switched to be closed. At this time, the transmission of the detection signal from the card switch 1 to the control device is stopped, and the control of the machine to stop the respective loads is controlled.

As described above, in the card switch 1 of the present embodiment, the track for opening and closing the rods 411 of the contacts 412a and 413 is along the track of the card 2 is inserted and removed. Therefore, even if the tip end (front end) of the rod 411 corresponding to the thin card 2 is protruded from the track of the card 2, the rod 411 can be rotated by the insertion of the card 2. Therefore, in the card switch 1 of the present embodiment, even when the thickness of the card 2 is thin, the insertion and removal of the card 2 can be normally detected.

Further, as described above, the card switch 1 of the present embodiment includes the first rib 303 and the second rib 304, both of which protrude from the inner wall of the casing 3 toward the card 2 inserted into the insertion opening 300. . Further, each of the ribs 303 and 304 is configured such that the end portion of the card 2 side (rear side) is positioned on the rail of the rod 411. That is, the end portions of the ribs 303, 304 on the side of the card 2 are located in a direction perpendicular to the thickness direction of the card 2 inserted into the insertion opening 300 and the direction in which the card 2 is inserted and removed, and overlapped with the rod. 411. More specifically, the end portion of the pair of ribs 303 is overlapped with the rod 411 as viewed in a direction perpendicular to the thickness direction and the insertion and removal directions, and the rod 411 is located from the insertion and removal direction. Between a pair of ribs 303. Therefore, by this configuration, since the tip end (front end) of the rod 411 is more convex than the rail of the card 2 guided by the ribs 303, 304, the rod 411 can be rotated without depending on the thickness of the card 2. That is, according to this configuration, the insertion and removal of the card 2 can be normally detected without depending on the thickness of the card 2. Further, viewed from the above-described insertion and removal direction, the rod 411 is not located between the pair of ribs 303, but is located between the ribs 303 and the ribs 304 adjacent to each other, or may be located on the outer side of the pair of ribs 304.

The card switch 1 of the present embodiment described above includes a casing 3 and a detecting portion (switch 41). The casing 3 has an insertion opening 300 into which the card 2 can be inserted. The detecting unit detects whether the card 2 is inserted into the insertion port 300. The detecting unit includes a switch 41. The switch 41 has contacts 412a and 413, a housing 410, and a rod 411. The contacts 412a and 413 are opened and closed with the rotation of the rod 411. The housing 410 houses contacts 412a, 413. A portion of the rod 411 protrudes from the housing 410. One of the rods 411 is adjacent to the track on which the card 2 is inserted and removed, and the rotation track of the rod 411 is along the insertion and removal direction of the card 2 .

As shown in this embodiment, the casing 3 is preferably provided with ribs (303 or 304). The ribs (303 or 304) are projected from the inner wall of the casing 3 toward the card 2 inserted into the insertion opening 300. The end portion of the rib (303 or 304) on the card 2 side is disposed so as to overlap the rod 411 from a direction perpendicular to the thickness direction of the card 2 inserted into the insertion opening 300 and the insertion and removal direction.

As shown in this embodiment, it is preferable to provide a plurality of ribs. The plurality of ribs include a pair of first ribs 303 and a pair of second ribs 304. The pair of first ribs 303 are provided on the side opposite to the insertion port 300 side in the above-described insertion and removal direction, along the insertion and removal direction. The pair of second ribs 304 are disposed along the insertion and removal directions along both sides of the pair of first ribs 303.

As in the present embodiment, the pair of second ribs 304 are preferably longer than the pair of first ribs 303 in the insertion and removal direction.

The present invention has been described in terms of several preferred embodiments, and various modifications and changes may be made by those skilled in the art without departing from the spirit and scope of the invention.

1‧‧‧ card switch

2‧‧‧ cards

3‧‧‧Box

30‧‧‧ Cover

30a‧‧‧Top

30b‧‧‧ front

300‧‧‧ insertion port

303‧‧‧1st rib

304‧‧‧2nd rib

31‧‧‧ Subject

311‧‧‧ window hole

4‧‧‧ body

40‧‧‧Substrate

41‧‧‧ switch

410‧‧‧shell

411‧‧‧ rod

412a, 412b‧‧‧ fixed joints

413‧‧‧Common joints

414‧‧‧ movable slice

Claims (3)

A card switch comprising: a box body having an insertion port into which a card can be inserted; and a detecting portion detecting whether the card is inserted into the insertion port, the detecting portion comprising a switch having: a contact; a housing And arranging the joint; and the rod protrudes from the housing, the joint opens and closes with the rotation of the rod, and one of the rods is adjacent to the track for inserting and removing the card, and the rotating track of the rod is along Inserting and unplugging the card, the box body is provided with: a rib protruding from the inner wall of the box toward the card inserted into the insertion opening, and the position of the end portion of the rib on the card side is: The rod is superposed on the rod as viewed in a direction orthogonal to the thickness direction of the card inserted in the insertion opening and the insertion and removal direction. The card switch of claim 1, wherein the plurality of ribs are provided, the plurality of ribs comprising: a pair of first ribs on the opposite side of the insertion port side in the insertion and removal direction, along the insertion The pair of second ribs are disposed on both sides of the pair of first ribs along the insertion and removal direction. For example, the card switch of claim 2, wherein In the insertion and removal direction, the pair of second ribs are longer than the pair of first ribs.