JP2015022906A - Switching device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switching device that can independently operate different types of loads by operating one switch knob, having both a tactile switch function and a capacitance switch function.SOLUTION: A switching device comprises: a switch knob 10 which is provided to be movable between a push position and a push-release position; a tactile switch 16 which turns on in association with the push position of the switch knob 10; an electrostatic sensor 11 attached on the back side of the switch knob 10; and an electronic control unit 20 in which first loads 21a, 21b are operated by detecting the on operation of the tactile switch 16 and second loads 21c, 21d are operated by determining that the electrostatic sensor 11 is turned on when the electrostatic capacitance changes at the electrostatic sensor 11 by touching the switch knob 10 by human finger F. The electronic control unit 20 operates the first loads 21a, 21b by preferentially detecting on operation of the tactile switch 16 when the tactile switch 16 turns on.

Description

  The present invention relates to a switch device having both a tact switch function and a capacitance switch function.

  A tact switch is known as disclosed in Patent Document 1, and a capacitance switch is known as disclosed in Patent Document 2.

Japanese Utility Model Publication No. 6-31050 JP 2004-39424 A

  An object of the present invention is to provide a novel switch device which has both a tact switch function and a capacitance switch function and can individually operate different loads by operating one switch knob.

  In order to achieve the above object, the present invention provides a switch case having a ceiling wall in which a knob hole is opened, a knob case that is movable between a push position and a push release position, and is always on the push release position side. A switch knob to be energized, a tact switch that is turned on and off in conjunction with movement between the push position and the push release position of the switch knob, an electrostatic sensor attached to the switch knob, and the tact switch When the first load is activated by detecting the on-operation of the sensor, and when the capacitance of the electrostatic sensor changes due to the contact of a human finger with the switch knob, An electronic control unit for determining and operating the second load, and the electronic control unit is configured to turn on the electrostatic sensor when the tact switch is turned on. Regardless of the change in capacitance, the first characterized in that the ON operation of the tact switch priority detect and actuating the first load.

  According to the present invention, in addition to the first feature, at least two sets of the switch knob, the tact switch, and the electrostatic sensor are juxtaposed, and the electronic control unit has a constant contact time of a human finger to each switch knob. Only when it is within the time, it is determined that the corresponding electrostatic sensor is in the on state, and when one person's finger slides from one switch knob to the other switch knob, the one electrostatic sensor is switched from the on state to the other. A second feature is that when the time until the electric sensor is turned on exceeds the predetermined time, the flick state is determined and the third load is operated.

  Further, in addition to the first or second feature, the present invention provides a diaphragm for closing the inner opening end of the knob hole on the ceiling wall of the switch case, and the switch knob is formed on the surface of the diaphragm. The third feature is that the electrostatic sensors are bonded to the back surface thereof.

  According to the first feature of the present invention, the push operation and the touch operation are individually applied to one switch knob, thereby causing the electronic control unit to discriminate between the push state and the touch state. The load can be operated individually.

  According to the second feature of the present invention, by applying a flick operation between the two switch knobs, the electronic control unit can discriminate the flick state, and different loads can be individually operated.

  According to the third feature of the present invention, a diaphragm for closing the inner opening end of the knob hole is stretched on the ceiling wall of the switch case, the switch knob is provided on the surface of the diaphragm, and the electrostatic sensor is provided on the rear surface thereof. Therefore, the diaphragm covers not only the electrostatic sensor but also the tact switch, and can protect the electrostatic sensor and the tact switch from static electricity, dust and moisture.

The longitudinal cross-sectional view of the switch apparatus which concerns on this invention. The circuit diagram of the switch apparatus. Action | operation explanatory drawing at the time of push operation of a switch knob. Explanatory drawing at the time of touch operation of a switch knob. Action | operation explanatory drawing at the time of flick operation of a switch knob. The flowchart which shows the process which comes to the action | operation of a corresponding load at the time of operation of a switch knob.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  First, in FIG. 1 and FIG. 2, the switch case 1 of the switch device includes a lower case 2 and an upper case 3 fitted to the outer periphery thereof. And a locking hole 5 is provided in the peripheral wall of the upper case 3, and the lower case 2 and the upper case 3 are coupled to each other by the engagement of the locking claw 4 and the locking hole 5.

  A plurality of (in the illustrated example, a pair) knob holes 7 are opened in the ceiling wall of the upper case 3, and an annular recess 8 is formed at the lower edge of each knob hole 7.

  In each knob hole 7, the switch knob 10 is disposed so as to be able to move up and down between the push position and the push release position. At the push release position, a stopper flange 10 a formed on the outer periphery of the lower end of the switch knob 10 is provided with the annular recess. 8 can be stored.

  A diaphragm 12 for closing the inner opening end of the knob hole 7 is sandwiched between the ceiling wall of the upper case 3 and the lower case 2, and the plurality of switch knobs 10 are bonded to the surface of the diaphragm 12, A plurality of electrostatic sensors 11 corresponding to the switch knobs 10 are bonded to the back surface of the diaphragm 12. Therefore, the electrostatic sensor 11 is attached to the back surface of each switch knob 10 via the diaphragm 12. The diaphragm 12 has a function of holding the switch knob 10 at a normal position where the stopper flange 10 a is accommodated in the annular recess 8 by the tension.

  The lower case 2 is provided with a plurality of guide holes 13 arranged coaxially with the plurality of knob holes 7 and a plurality of switch chambers 14 connected to the lower ends of the guide holes 13. A normally open tact switch 16 mounted on a circuit board 17 attached to the lower case 2 with screws 18 is slidably fitted into an intermediate transmission member 15 that contacts the diaphragm 12. Thus, the upward automatic return force of the actuator of the tact switch 16 can hold the intermediate transmission member 15 in the contact position with the diaphragm 12.

  As shown in FIG. 2, the ON signal of the tact switch 16 and the electrostatic sensor 11 is input to the electronic control unit 20, and the electronic control unit 20 controls the first to sixth loads 21a to 21f according to the conditions described later. It operates individually.

  Next, the operation of this embodiment will be described.

A diaphragm 12 that closes the inner opening end of the knob hole 7 is sandwiched between the ceiling wall of the upper case 3 and the lower case 2, and the plurality of switch knobs 10 are disposed on the surface of the diaphragm 12 and the back surface thereof. Since the electrostatic sensor 11 is bonded to each other, the diaphragm 12 covers the tact switch 16 and the circuit board 17 as well as the electrostatic sensor 11, and the electrostatic sensor 11, the tact switch 16 and the circuit board 17 are Can protect against static electricity, dust and moisture.
[Push operation]
As shown in FIG. 3, when a human finger F touches, for example, the left switch knob 10 and the switch knob 10 is pushed, the push operating force causes the intermediate transmission member 15 to bend while the diaphragm 12 is bent. The left tact switch 16 is actuated. That is, the left tact switch 16 is turned on after moving from the first step 1 to the second step S2 in FIG. 6, and the push state is determined in the third step S3, and the left switch knob 10 is turned on in the fourth step S4. The corresponding first load 21a is activated.

When the right switch knob 10 is pushed, the second load 21b corresponding to the right switch knob 10 is operated by the same action.
[Touch operation]
As shown in FIG. 4, when a human finger F simply touches the left switch knob 10, for example, the process moves from the first step S1 to the fifth step S5 in FIG. The electronic control unit 20 determines whether or not the electrostatic sensor 11 is turned on by a change in the electrostatic capacitance due to the contact with the finger F, and the on-time of the electrostatic sensor 11 is within 0.1 seconds in the sixth step S6. If YES is determined, the touch state is determined in the seventh step S7, and the electronic control unit 20 activates the third load 21c corresponding to the left electrostatic sensor 11 in the eighth step S8.

  If NO is determined in the sixth step S6, the electronic control unit 20 is not determined in the ninth step S9. That is, when the finger F is put on the switch knob 10 for more than 0.1 seconds, there is no determination, and the operation of the third load 21c is not achieved unless the touch on the switch knob 10 is finished in an instant. .

  When the right switch knob 10 is touched for a moment, the fourth load 21d corresponding to the right electrostatic sensor 11 is operated by the same action.

As is clear from this, since the push operation of the switch knob 10 usually requires 0.1 or more, the on operation of the tact switch 16 is detected with priority over the on operation of the electrostatic sensor 11. As a result, the push state is determined.
[Flick operation]
As shown in FIG. 5, when a human finger F slides, for example, from the left switch knob 10 to the right switch knob 10, that is, when flicked, the fifth step S6 to the tenth step in FIG. The process proceeds to S10, the left electrostatic sensor 11 is turned on following the turning on of the left electrostatic sensor 11, and then the left electrostatic sensor 11 is turned on in the eleventh step S11. The electronic control unit 20 determines whether or not the time until the sensor 11 is turned on is within 0.3 seconds. If YES, the process proceeds to the twelfth step S12. The electrostatic sensor 10 is turned off. Next, in the thirteenth step S13, it is determined by the electronic control unit 20 whether or not the on-time of the other electrostatic sensor 10 is within 0.3 seconds. If YES, it is determined in the fourteenth step S14 that the flick state is established. In the fifteenth step S <b> 15, the fifth load 21 e corresponding to the shift of the ON operation from the left electrostatic sensor 11 to the right electrostatic sensor 11 is operated by the electronic control unit 20.

  If NO is determined in the eleventh step S11, that is, if the transition of the finger F from one switch knob 10 to the other switch knob 10 is slow and the transition takes time exceeding 0.3, The process proceeds to step S9, and the electronic control unit 20 is not judged.

  If NO is determined in the thirteenth step S13, that is, if the finger F remains on the other switch knob 10 for more than 0.3 seconds, the process proceeds to the ninth step S9 and no determination is made. .

  When the right switch knob 10 is flicked to the left switch knob 10, the corresponding sixth load 21f is activated.

  As described above, the switch device of the present invention can move between the push position and the push release position and is always urged toward the push release position, and between the push position and the push release position of the switch knob 10. The tact switch 16 that is turned on and off in conjunction with the movement of the switch, the electrostatic sensor 11 attached to the back surface of the switch knob 10, and the first and second loads 21a, When the electrostatic sensor 11 is changed in capacitance by the contact of the finger F with the switch knob 10 and when the electrostatic sensor 11 is changed, it is determined that the electrostatic sensor 11 is in the on state, and the third and fourth And an electronic control unit 20 for actuating the loads 21c and 21d. When the tact switch 16 is turned on, the electronic control unit 20 Regardless of the change in capacitance, the first and second loads 21a and 21b are activated by preferentially detecting the ON operation of the tact switch 16, so that two operations of a push operation and a touch operation are individually performed on one switch knob 10. In addition, the electronic control unit 20 can discriminate between the push state and the touch state, and the different loads 21a, 21b; 21c, 21d can be individually operated.

  Further, at least two sets of switch knobs 10, tact switches 16 and electrostatic sensors 11 are arranged in parallel, and the electronic control unit 20 responds only when the contact time of the person's finger F to each switch knob 10 is within a predetermined time. When it is determined that the electrostatic sensor 11 is in an on state and a human finger F slides from one switch knob 10 to the other switch knob 10, the other electrostatic sensor 11 is switched from the on state of one electrostatic sensor 11. When the time until the on state exceeds the predetermined time, it is determined that the flick state has occurred, and the fifth and sixth loads 21e and 21f are operated. Therefore, by applying a flick operation between the two switch knobs 10, The control unit 20 can determine the flick state, and can further operate the fifth and sixth loads 21e and 21f individually. Therefore, the first to sixth loads 21a to 21f can be individually operated by simply operating the two switch knobs 10 as appropriate.

  The present invention is not limited to the above embodiment, and various design changes can be made without departing from the scope of the invention. For example, the number of switch knobs 10 used may be one when the flick operation is not considered, or may be three or more when the flick operation is performed. Further, as a means for urging the switch knob 10 to the push release position, a return-only elastic member can be used.

F ··· Human finger 1 ··· Switch case 7 ··· Knob hole 10 · · · Switch knob 11 · · · Electrostatic sensor 12 ··· Diaphragm 16 ... tact switch 20 ... electronic control units 21a, 21b ... first load (first and second loads)
21c, 21d ... 2nd load (3rd and 4th load)
21e, 21f ... 3rd load (5th and 6th load)

Claims (3)

The switch case (1) having a ceiling wall in which the knob hole (7) opens, and the knob hole (7) are provided so as to be movable between the push position and the push release position, and are always urged toward the push release position. A switch knob (10), a tact switch (16) that is turned on and off in conjunction with the movement of the switch knob (10) between the push position and the push release position, and the switch knob (10). The first load (21a, 21b) is activated by detecting the on-operation of the electrostatic sensor (11) and the tact switch (16), and the human finger (F) to the switch knob (10) When the electrostatic sensor (11) changes in capacitance due to contact with the electronic sensor, it is determined that the electrostatic sensor (11) is in an ON state, and the electronic control unit that activates the second load (21c, 21d). Will and a door (20),
When the tact switch (16) is turned on, the electronic control unit (20) prioritizes the on operation of the tact switch (16) regardless of the change in the capacitance of the electrostatic sensor (11). A switch device characterized by detecting and actuating the first load (21a, 21b). The switch device according to claim 1,
At least two sets of the switch knob (10), the tact switch (16) and the electrostatic sensor (11) are arranged side by side, and the electronic control unit (20) is connected to a human finger (F) to each switch knob (10). It is determined that the corresponding electrostatic sensor (11) is in an on state only when the contact time is within a certain time, and the person's finger (F) moves from one switch knob (10) to the other switch knob (10). When the time from when one electrostatic sensor (11) is turned on to when the other electrostatic sensor (11) is turned on exceeds the predetermined time, the flick state is determined and the third state is reached. A switch device for operating a load (21e, 21f). The switch device according to claim 1 or 2,
A diaphragm (12) for closing the inner opening end of the knob hole (7) is stretched on the ceiling wall of the switch case (1), and the switch knob (10) is attached to the surface of the diaphragm (12). The switch device is characterized in that the electrostatic sensor (11) is bonded to the back surface thereof.

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