JPH10289634A - Magnet catch with connector integrated switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain ease of use, manufacturing cost reduction and maintenance improvement by forming an integrated structure with a connector so as to eliminate need of a connection work of a lead line to a switching part and connector fitting work. SOLUTION: A connector is constituted by forming an attracting/retaining part 40 consisting of a permanent magnet 41 and yokes 42 disposed at both the pole surfaces of the permanent magnet 41 respectively to a resin body case 10 which is integrally-formed with a connector housing 50, fixing a plurality of contact pieces on the body case 10, and protruding the terminal parts 31a, (31b) of the end part of the contact piece into the connector housing 50. A slide type switch is constituted by forming an actuator 60 integrated with a contact piece 63 capable of being brought into contact with a plurality of the contact pieces freely so as to slide freely against the body case 10. The actuator 60 is pushed to slide by an object to be attracted which is attracted by the attracting/retaining part 40, thus it is possible to conduct switching operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a function of detecting various doors, in addition to a function as a magnet catch for holding doors such as a case, a cabinet, a safety cover and the like by magnetic attraction. More particularly, the present invention relates to a connector-integrated switch-equipped magnet catch having a structure having an external connection connector integrated therewith.

[0002]

2. Description of the Related Art Conventionally, as a magnet catch with a switch function, a configuration disclosed in Japanese Utility Model Publication No. Hei 4-22681 has been known. The magnet catch with switch function disclosed in the publication will be briefly described with reference to FIG. As shown in FIG. 6, the magnet catch 1 with a switch function is
A permanent magnet 2 having a magnetic pole surface in the thickness direction and yokes 3 disposed on both magnetic pole surfaces are provided on a resin case 4, and a reed switch 5 is further disposed on the bottom of the resin case 4. The on / off operation of the reed switch 5 is performed by utilizing the change of the leakage magnetic flux generated when the piece (armature piece) 6 is attracted to and released from the yoke 3 in combination with the impression value of the reed switch 5. is there.

[0003] A magnet catch having a push-type detection switch is disclosed in Japanese Patent No. 2532022. In this case, when the actuator portion of the push-type detection switch is pressed by the door-side magnetic piece adsorbed by the magnet catch, the switch is turned on,
Perform the off operation.

[0004]

By the way, in the case of a magnet catch having a reed switch, not only the terminal processing of the reed switch is required, but also when the lead wire is drawn out, soldering (welding) with the reed switch. Work is needed. In addition, when a lead wire drawn out is used, secondary processing of the lead wire such as connector attachment may be required.

In the case of a magnet catch having a push-type detection switch, the push-type detection switch itself is a relatively expensive component having a structure similar to that of a microswitch, which increases the cost of the product. In addition, since the connection to the outside is made by a lead wire, secondary processing of the lead wire such as soldering work between the lead wire and the switch or attaching a connector is still necessary.

SUMMARY OF THE INVENTION In view of the above, the present invention has a connector integrated structure that eliminates the need to connect a lead wire to a switch and to attach a connector, which is convenient to use, reduces manufacturing costs, and improves maintainability. It is an object of the present invention to provide a connector-integrated switch-equipped magnet catch that can be achieved.

[0007] Other objects and novel features of the present invention will be clarified in embodiments described later.

[0008]

In order to achieve the above-mentioned object, a connector-integrated switch-equipped magnet catch of the present invention provides a permanent magnet and both permanent magnets in a resin body case integrally formed with a connector housing. A suction holding portion composed of a yoke arranged on each of the magnetic pole surfaces is provided, a plurality of contact pieces are fixed to the main body case, and terminal portions at ends of the contact pieces protrude into the connector housing to form a connector. Along with the plurality of contact pieces and a contact piece that is freely contactable, an actuator is provided slidably with respect to the main body case to constitute a slide switch.
A switch operation is performed by the actuator being pushed and slid by the object to be suctioned by the suction holding unit.

[0009] In the connector-integrated magnet catch with switch, the plurality of contact pieces are insert-molded in the main body case, and the contact pieces slide on portions of the contact pieces exposed on the inner surface of the main body case. Thus, the switch operation may be performed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a magnet catch with a switch integrated with a connector according to the present invention will be described below with reference to the drawings.

In FIGS. 1 to 3, reference numeral 10 denotes a main body case made of resin such as polycarbonate.
A suction holding portion housing recess 20 and a switch portion housing recess 30 which are opened in a rectangular shape are formed on the front surface (side facing the magnetic piece of the object to be sucked such as a door, etc.). Attachment seats 1 extending laterally on both sides perpendicular to the front face where storage recess 20 and storage recess 30 of main body case 10 are opened.
1, 12 are connected in series.

The suction holding portion 40 is composed of a rectangular parallelepiped permanent magnet 41 and magnetic yokes 42 arranged on both magnetic pole surfaces of the permanent magnet 41, respectively. A hole 43 is formed to engage with the protrusion 21 formed on each of the inner side surfaces of 20. The suction holding portion 40 including the pair of yokes 42 and the permanent magnets 41 sandwiched between the yokes 42 accommodates the suction holding portion such that the bent portion 44 formed at the front end of the yoke 42 projects slightly forward from the main body case 10. The hole 43 on the yoke 42 side is engaged with the protrusion 21 on the inner side surface of the storage recess 20 at that time, and the engagement structure between the two prevents the yoke 42 from slipping forward. It has a retaining shape to prevent it. The bent portions 44 of the pair of yokes 42 are bent inward from each other, and serve as a portion for preventing the permanent magnet 41 from coming off to the front side and a portion for magnetically attracting the external magnetic body on the door side. Also, since the bottom of the suction holding unit housing recess 20 is a closed surface, the permanent magnet 4
1 and the yoke 42 are prevented from coming off behind the body case 10. The portion where the suction holding section 40 is attached to the main body case 10 is a portion that performs the original function of the magnet catch.

As shown in FIG. 1 and FIG. 3, contact pieces 31 and 32 of metal conductors having different lengths as shown in FIG. The contact pieces 31 and 32 are integrated.
The rear end portion of the connector case 50 protrudes in parallel as terminal portions 31a and 32a into a connector housing 50 formed integrally with the main body case 10. Also, inside the switch housing recess 30, the surfaces of the contact pieces 31, 32 are exposed.

The actuator 60 of the slide switch
Is integrally formed of an insulator such as a resin so as to have a base portion 61 slidably fitted in the switch portion storage recess 30 and a push button portion 62 formed to protrude forward of the base portion 61. A contact piece 63 made of an elastic metal conductor piece is attached to and integrated with the base portion 61. The actuator 60 having the contact piece 63 integrated therein is housed in the switch housing recess 30 so that the coil spring (compression spring) 64 is located on the bottom side. The cover 65 is mounted on the main body case 10. Here, the cover 65 has a front hole 66 that penetrates the push button portion 62 and a receiving hole 67 that engages with the protrusion 33 formed on the upper and lower outer surfaces of the body case 10 at the position where the switch housing recess 30 is formed. Are formed. Therefore, the push button unit 6 on the actuator 60 side
2 is inserted through the front hole 66, the cover 65 is fitted to the outside of the main body case 10, and the receiving hole 67 is engaged (fitted) with the case-side projection 33, whereby the actuator 6 is
0 can be configured. In this state, the actuator 60 is always in contact with the back surface of the front hole 66 of the cover 65 by the elastic force of the coil spring 64,
The actuator 60 can be slid only by pressing the tip of No. 2.

As described above, a slide switch can be formed by combining the contact piece 63 integrated with the actuator 60 and the contact pieces 31 and 32 exposed inside the switch housing recess 30. In the state where no external force is applied, the contact piece 63 contacts only the longer contact piece 31 as shown by the imaginary line A in FIG. 4, is separated from the contact piece 32, and is switched off (contact piece 31, A hatched portion 32 is an exposed surface to the inside of the storage recess 30.) Further, an external force is applied to the tip of the push button portion 62 and the actuator 6
When 0 slides backward, the contact piece 63 is composed of the long contact piece 31 and the short contact piece 3 as shown by the imaginary line B in FIG.
When both of them come into contact with each other, they are short-circuited and turned on.

The connector housing 50 formed integrally with the main body case 10 and the terminal portions 31a and 32a at the rear ends of the contact pieces 31 and 32 projecting in parallel with the inside of the body case 10 electrically connect to the switch (signal extraction). ) Is configured (plug side). In the present embodiment, the shape is compatible with the receiving side of the small general-purpose CT connector (AMP 173977-2), and the shape is such that the connector can be freely fitted without excess or shortage.

In this embodiment, since the actuator 60 normally projects forward by the elastic force (return force) of the coil spring 64, the contact piece 6 as shown by the imaginary line A in FIG.
Numeral 3 contacts only the longer contact piece 31 and is separated from the contact piece 32 and is switched off. However, when the external magnetic piece 6 of the doors 7 shown in FIG. 2 moves and is attracted to the magnetic yoke 42 of the attracting and holding section 40 having the magnet catching function, the push button 62 of the actuator 60 is pressed.
Is pushed by the external magnetic piece 6 itself or the doors 7 to which the external magnetic piece 6 is attached, and slides backward in the switch unit storage recess 30, and the contact piece 63 becomes the contact piece 31,
In this case, both of the doors 32 are contacted and short-circuited to each other, and the switches are turned on. By detecting an electric signal and the like, the suction of the doors 7 can be sensed.

According to this embodiment, the following effects can be obtained.

(1) The suction holding section 40 is attached to the main body case 10.
And a slide-type switch having an actuator 60, which can perform a function of holding and holding doors as a single component, and detect opening and closing.

(2) A small connector is provided integrally with the main body case 10, and the contact piece 3 of the slide type switch is provided.
The rear ends of the terminals 1 and 32 are the terminal portions 31a and 32a protruding from the connector housing 50 as they are. For this reason, there is no need for a connection operation (welding operation such as soldering) of the lead wire to the switch element or secondary processing for attaching a connector to the lead wire.

(3) Each member is easily attached to the main body case 10 and is easy to manufacture, and connection work and wiring work using lead wires are unnecessary, so that it can be manufactured at low cost.

(4) The contact pieces 31 and 32 are
The contact piece 63 slides on a portion of the contact piece exposed on the inner surface of the main body case to perform a switch operation, so that the structure of the slide switch is simple. In addition, the contact piece 63 is always in contact with the longer contact piece 31, and the shorter contact piece 3
The contact pieces 31 and 3
Switch operation stability can be ensured as compared with a structure in which the contact pieces 63 are in contact with or separated from both of the two (there is only one place where sparks fly when changing from contact to non-contact).

In the above embodiment, the case of a slide switch having a normally open contact structure composed of a combination of the contact pieces 31 and 32 and the contact piece 63 has been described. By changing the exposed part)
A slide switch having a normally closed contact structure can be realized. FIG.
FIG. 1 shows an example of the arrangement of contact pieces when configuring a slide switch having such a normally closed contact structure. In this figure, the hatched portions of the contact pieces 71 and 72 are portions exposed to the switch housing recess 30 of the main body case, and are integrated with the actuator when no external force is applied to the actuator that slides in the switch housing recess. The contact piece 63 contacts both the contact pieces 71 and 72 as shown by the imaginary line C in FIG. When the actuator 60 is pressed by the doors and slid, the contact piece 63 contacts only one contact piece 71 and separates from the contact piece 72 as shown by a virtual line D in FIG.
Turns off.

It should be noted that three or more contact pieces may be used as a switch structure for executing on / off or switching operation of a plurality of circuits.

Although the embodiments of the present invention have been described above, it is obvious to those skilled in the art that the present invention is not limited to the embodiments and that various modifications and changes can be made within the scope of the claims. There will be.

[0026]

As described above, the connector-integrated magnet catch with switch according to the present invention has a connector integrated structure which eliminates the need for connecting a lead wire to the switch and attaching the connector. It is convenient to use, easy to manufacture and assemble, and can reduce manufacturing costs and improve maintainability.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a magnet catch with a switch integrated with a connector according to the present invention.

FIG. 2 is a perspective view of the assembled state of the embodiment.

FIG. 3 is a front view of a main body case used in the embodiment.

FIG. 4 is an explanatory diagram showing a positional relationship between a contact piece and a contact piece of the slide switch according to the embodiment.

FIG. 5 is a modified example of the slide switch portion and is an explanatory diagram showing a positional relationship between a contact piece and a contact piece.

FIG. 6 shows a conventional magnet catch with a switch function.
It is a front sectional view showing an example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magnet catch with switch function 2, 41 Permanent magnet 3, 42 Yoke 4 Resin case 5 Reed switch 6 External magnetic body 7 Doors 10 Main body case 11, 12 Mounting seat part 20 Suction holding part storage recessed part 21, 33 Projection part 30 Switch Unit storage recesses 31, 32, 71, 72 Contact pieces 31a, 32a Terminal part 40 Suction holding part 43 Hole part 44 Bend part 50 Connector housing 60 Actuator 61 Base part 62 Push button part 63 Contact piece 64 Coil spring 65 Cover 66 Front hole 67 Receiving part

Claims (2)

[Claims] 1. A resin main body case in which a connector housing is integrally formed, provided with a suction holding portion including a permanent magnet and a yoke arranged on both magnetic pole surfaces of the permanent magnet, and a plurality of contact pieces are attached to the main body case. And the terminal portion at the end of the contact piece is protruded into the connector housing to form a connector, and the actuator integrated with the plurality of contact pieces and the contact piece that can freely contact the main body case. A switch that is slidably provided to form a slide switch, wherein the switch is operated by the actuator being pushed and slid by an object sucked by the suction holding unit. With magnetic catch. 2. The switch operation according to claim 2, wherein the plurality of contact pieces are insert-molded in the main body case, and the contact piece slides on a portion of the contact piece exposed on the inner surface of the main body case. Item 2. A magnet catch with a switch integrated with a connector according to item 1.