KR20040020667A - Non-contact information switch of rotary type - Google Patents

Abstract

PURPOSE: A rotary type contactless information switch is provided to reduce parts count and costs, while achieving improved user convenience and lengthening the useful life of the switch. CONSTITUTION: A rotary type contactless information switch(20) comprises a rotary switch knob(22) arranged in the outside from a switch body(21); an operating shaft(23) arranged in the switch body in such a manner that the operating shaft is elastically supported by a spring(36) and movable downward when the rotary switch knob is pressed; a switch gear(24) arranged beneath the rotary switch knob in such a manner that the switch gear rotates when the rotary switch knob rotates; an electromotive force generating unit(25) for generating an electromotive force by the rotating forces of the rotary switch knob and the switch gear; and a micro controller(31) for sensing the rotating angle of the rotary switch knob and controlling the display unit in such a manner that the functions are displayed in the preset sequence.

Description

Non-contact information switch of rotary type

The present invention relates to a rotary contactless information switch, and more particularly, to rotate the rotary switch knob protruding toward the front of the switch main body for the operation of vehicle electronics such as radios, CDs and TVs. The present invention relates to a rotary contactless information switch configured to search for various functions that can be performed, and to select a performance of a corresponding function by pressing a rotary switch knob when a desired function is displayed on the display means.

In general, a car is equipped with various convenience electronics such as a radio, a CD player, and a TV. The center fascia in front of the driver's seat collects various switches so that various functions of the electronics can be easily operated as desired by a driver or a passenger. The set switch part is comprised.

In FIG. 4, an embodiment of a conventional navigation convergence key switch for a vehicle is shown as an embodiment of the switch unit.

As shown in the drawing, the conventional navigation concentrating key switch 10 is composed of a plurality of switches 12 which are selectively operated by a driver or a passenger, and selects an operation mode such as radio, CD, and TV, or Even in the operating mode, the necessary functions are provided to operate as desired.

However, in the conventional navigation convergence key switch, not only a plurality of switches are required for each function number, but also a switch for manipulating each function has a problem in that it requires an excessive number of components.

In addition, the conventional navigation convergence key switch requires a wide installation space, looks very complicated, and also has a problem such that the operation is difficult, so that the countermeasures are urgently required.

Therefore, the present invention is invented to solve the above problems, it is possible to reduce the number of parts, weight reduction, cost reduction and installation space, it is convenient to use, and has a semi-permanent life as a contactless type switch The purpose is to provide a rotary information switch.

1 is a cross-sectional view showing the internal configuration of a contactless information switch according to the present invention

2 is a cross-sectional view taken along the line 'A-A' of FIG.

Figure 3 is a plan view showing a rotor mounted on a rotating shaft in the present invention

Figure 4 is a front view showing an embodiment of a conventional navigation key switch for automobiles

<Explanation of symbols for the main parts of the drawings>

20: switch 22: rotary switch knob

23: working shaft 24: switch gear

25: electromotive force generating means 26: rotating shaft

27: pinion gear 28: rotor

29: cross coil 30: PCB

31: microcontroller 33a, 33b: contact

34: rubber point switch 35: conductive means

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The rotary contactless information switch according to the present invention is disposed vertically in the switch body 21 and the rotary switch knob 22 rotatably installed to the outside of the switch body 21, and is elastically supported by the spring 36. The operating shaft 23 is installed to be moved downward when the rotary switch knob 22 is pressed, and integrally below the rotary switch knob 22 so that the rotary switch knob 22 can be rotated during the rotation operation. Electromotive force generating means 25 for generating electromotive force by the rotational force of the installed switch gear 24, the rotary switch knob 22 and the switch gear 24 interlocked thereto, and electromotive force generated from the electromotive force generating means 25 In order to sense the rotation angle of the rotary switch knob 22 by receiving the input and at the same time the functions that can be performed for each one-click rotation operation of the rotary switch knob 22 is a preset order It characterized in that it comprises a microcontroller 31 on the PCB 30 to control the display means to be displayed as.

In particular, a function selection detecting circuit including two contact points 33a and 33b intermittent on the PCB 30 and installed at a lower end of the operating shaft 23 to select the function when the rotary switch knob 22 is pressed. The microcontroller further includes a rubber point switch 34 for selecting a function intermittently between the two contacts 33a and 33b of the sensing circuit, and detects when the two contacts 33a and 33b of the function selection detecting circuit are closed. (31) is characterized in that for outputting the electrical signal for performing the function to the corresponding electrical equipment.

In addition, the electromotive force generating means 25 is a rotary shaft 26 vertically arranged in parallel with the operating shaft 23 in the switch body 21, and the rotary shaft 26 in a state of meshing with the switch gear 24. A pinion gear 27 mounted on the top, and a rotor 28 integrally mounted on the rotating shaft 26, which is composed of a circular permanent magnet composed of N and S poles, and the rotor 28. It is characterized by consisting of a cross coil 29 disposed to the periphery to generate an electromotive force at the time of rotation of the rotor 28 and at the same time input the electromotive force to the microcontroller 31.

In addition, the microcontroller 31 receives the electromotive force generated by the cross coil 29 by the amount of rotation of the pinion gear 27 according to one pitch rotation of the switch gear 24 and converts it into one pulse. Afterwards, the rotary switch knob 22 is sensed to be operated by one click rotation every one pulse.

In addition, the pinion gear 27 is characterized by being rotated by 45 ° during one pitch rotation of the switch gear 24.

In addition, in order to give a sense of theft to each click rotation operation of the rotary switch knob 22, the microcontroller 31 controls the power circuit on the PCB capable of outputting current to the cross coil 29 to the rotary switch knob ( Whenever the one-click rotation operation of 22) is detected, a current having an opposite polarity of the electromotive force is applied to the cross coil 29.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a cross-sectional view showing the internal configuration of a rotary contactless information switch according to the present invention, Figure 2 is a cross-sectional view taken along the line 'A-A' of FIG.

The present invention relates to a switch installed for the operation of the vehicle electrical equipment, such as radio, CD, TV, etc., by rotating the rotary switch knob protruding toward the front of the switch main body to search for various functions that can be displayed through the display means In addition, the present invention relates to a rotary contactless information switch configured to select a performance of a corresponding function by pressing a rotary switch knob when a desired function is displayed on the display means.

First, as shown in Figure 1, in the switch 20 of the present invention, the rotary switch knob 22 and the switch main body (22) provided to be rotatable to the outside of the switch main body 21 (upper switch main body in Figure 1). 21 is disposed vertically in the interior of the operating shaft 23 and the rotary switch knob 22, which is elastically supported by the spring 36 so as to be moved downward during the pressing operation of the rotary switch knob 22, It is equipped with a switch gear 24 integrally coupled thereto so that it can rotate together.

The switch gear 24 is provided below the rotary switch knob 22 on the working shaft 23.

In addition, the switch main body 21 is provided with electromotive force generating means 25 for generating an electromotive force by the rotational force of the rotary switch knob 22 and the switch gear 24 that is linked thereto.

Looking at the configuration of the electromotive force generating means 25, the rotary shaft 26 is arranged in parallel with the operating shaft 23 is installed, the pinion gear meshed with the switch gear 24 on the upper end of the rotary shaft 26 27 is mounted.

In addition, in the middle of the rotating shaft 26 is composed of a circular permanent magnet (refer to Figure 3) divided into a plurality of N pole and S pole laterally rotatable in the receiving space (21a) provided inside the switch body 21 Rotor 28 is integrally mounted.

As a result, when the switch gear 24 is rotated by the rotary operation of the rotary switch knob 22, the pinion gear 27 engaged thereto rotates so that the rotary shaft 26 and the rotor 28 rotate together. .

In addition, a cross coil 29 is wound around the switch body 21 around the rotor 28. The cross coil 29, the rotation shaft 26, and the rotor 28 may be configured. The configuration is similar to that of the step motor.

In the cross coil 29, an electromotive force is generated by the rotation of the rotor 28, and the electromotive force is formed on the PCB 30 through an amplification circuit (not shown) of the PCB (Printed Circuit Board) 30. It is inputted to the microcontroller 31 attached to it.

That is, when the pinion gear 27 rotates, an electromotive force is generated in the cross coil 29 wound around the rotor 28, and the micro controller 31 senses the electromotive force of the rotary switch knob 22. The rotation angle is calculated.

Here, the microcontroller 31 controls the display means (not shown) whenever the rotary switch knob 22 is rotated at a predetermined angle so that the functions that can be performed are displayed one by one.

In more detail, in the switch 20 of the present invention, each time a driver or a passenger clicks on the rotary switch knob 22, various functions that can be performed by the switch 20 of the present invention are ordered through the display means. One by one, the function display operation of the display means is performed by the control of the microcontroller 31 that detects the click operation of the rotary switch knob 22.

That is, each time the driver or passenger rotates the rotary switch knob 22 and clicks the rotary switch knob 22 one time, the display means displays the functions that can be performed one by one in a preset order. By rotating the knob 22, it is possible to search for functions that can be performed through the display means.

In this case, the display means displays the functions one by one every time the rotary switch knob 22 is clicked. One click of the rotary switch knob 22 indicates that any function has already been displayed through the display means. Note that it refers to the rotation operation of the rotary switch knob 22 so that the next function inputted in order in the state can be displayed.

The microcontroller 31 rotates one click of the rotary switch knob 22 so that the following sequence of functions is displayed on the display means under the control of the microcontroller 31 at each one-click rotation operation of the rotary switch knob 22. It should be able to detect the operation, the process is as follows.

First, the one-click rotation operation of the rotary switch knob 22 in the switch 20 of the present invention may be set when the switch gear 24 interlocked thereto is rotated by one pitch of its teeth.

In addition, the amount of rotation of the pinion gear 27 during the one-pitch rotation of the switch gear 24 may be predetermined, and the cross may be determined by the amount of rotation of the pinion gear 27 during the one-pitch rotation of the switch gear 24. The electromotive force generated by the coil 29 is to be converted by one pulse in the microcontroller 31, and the microcontroller 31 detects that the rotary switch knob 22 is rotated by one click every one pulse.

That is, the microcontroller 31 detects the electromotive force generated according to the amount of rotation (or rotation angle) of the pinion gear 27 interlocked with the rotary switch knob 22 through the switch gear 24 to the rotary switch knob. By detecting the rotation amount (or rotation angle) of 22, it is determined that the rotary switch knob 22 is rotated by one click for each pulse, thereby controlling the display means.

In a preferred embodiment, the pinion gear 27 is rotated by 45 ° during the one-click rotation operation of the rotary switch knob 22, that is, the one-pitch rotation operation of the switch gear 24, for the driver or passenger to find a function. Each time the pinion gear 27 is rotated by 45 °, the electromotive force generated from the cross coil 29 is converted into one pulse by the microcontroller 31, and the microcontroller 31 is detected. Functions that can be performed per one pulse are controlled to be displayed on the display means while performing 1: 1 matching.

On the other hand, the PCB 30, in addition to the amplification circuit for amplifying the electromotive force generated in the cross coil 29 as an input portion of the microcontroller 31, the driver or passenger has selected to perform the function after performing a function search. A function selection detection circuit (not shown) is provided to allow the microcontroller 31 to detect.

The function selection detecting circuit includes two contacts 33a and 33b intermittent by a function selection rubber point switch 34 provided at the lower end of the operating shaft 23 of the rotary switch knob 22. When 33a and 33b are closed, the microcontroller 31 determines that the execution of the corresponding function is selected.

Here, the function point of the rubber point switch 34 is made of a conductive means 35 for intermittent between the two contacts (33a, 33b) of the function selection detection circuit at the lower end of the operating shaft 23, the driver or occupant When the rotary switch knob 22 is rotated to perform a function search, and then the rotary switch knob 22 is pressed, the operating shaft 23 descends and the conductive means 35 at the lower end of the function select detection circuit The contacts 33a and 33b are to be closed.

Of course, when the driver or the passenger releases the pressing operation of the rotary switch knob 22, the operating shaft 23 is raised by the restoring force of the spring 36 accommodated in the switch body 21, and the conductive means 35 at the lower end thereof. This opens the two contacts 33a and 33b of the function selection detection circuit.

As a result, the microcontroller 31 detects that the performance of the corresponding function is selected when the rotary switch knob 22 is pressed, and thus outputs an electrical signal for performing the function to the corresponding electrical equipment.

On the other hand, in the contactless information switch 20 according to the present invention, in order to give a sense of theft every time the one-click rotation operation of the rotary switch knob 22, the microcontroller that sensed the one-click rotation operation of the rotary switch knob 22 ( Under the control of 31, a power circuit (not shown) on the PCB 30 is configured to apply a current of opposite polarity to the cross coil 29 at each one-click rotation operation of the rotary switch knob 22.

As in the above-described preferred embodiment of the present invention, the microcontroller 31 senses an electromotive force 1 pulse generated when the pinion gear 27 rotates by 45 ° by one click rotation operation of the rotary switch knob 22. When configured such that the power circuit applies a current of opposite polarity (opposite to rotation angle recognition) to the cross coil 29 for each pulse of electromotive force under the control of the microcontroller 31 for the sense of theft, The current applied to the cross coil 29 acts as a resistive force when the rotor 28 and the rotating shaft 26 are rotated to generate a sense of theft every 45 degrees in the pinion gear 27.

As a result, 45 degrees of theft in the pinion gear 27 acts as a mode of theft per click of the rotary switch knob 22.

In this way, in the rotary contactless information switch 20 according to the present invention, the rotary switch knob 22 is rotated and displayed through the display means for the operation of the vehicle electrical equipment such as radio, CD, and TV. After searching for possible functions, the rotary switch knob 22 is pressed when the desired function is displayed on the display means to select the performance of the corresponding function.

In this case, when the rotary switch knob 22 is pressed after the function search, the conductive shaft 35 at the lower end closes the two contacts 33a and 33b of the function selection detecting circuit while the operation shaft 23 is lowered. Accordingly, the corresponding function is performed.

As described above, according to the rotary contactless information switch according to the present invention, the display means is rotated by rotating the rotary switch knob protruding toward the front of the switch body for the operation of the vehicle electrical equipment such as radio, CD and TV. By searching for the various functions that can be displayed through the display and pressing the rotary switch knob when the desired function is displayed on the display means, the performance of the corresponding function can be selected.

1) Conventionally, the number of switches required as well as the number of functions that can be performed, as well as switches having a separate structure for each function, and a number of components required accordingly, the switch of the present invention is a simple component instead of all the switches Since it can reduce the number of parts, weight reduction, cost reduction and installation space can be reduced.

2) It is very convenient to use because it can realize all functions just by turning the rotary switch knob.

3) It has a semi-permanent lifespan because it is a non-contact switch without sliding contacts reaching the limit due to wear after a certain time or opposing contact with a burnout limit of a certain life.

Claims (6)

When the rotary switch knob 22 is pushed by the rotary switch knob 22 which is installed to be rotated to the outside of the switch main body 21 and vertically disposed inside the switch main body 21 and is elastically supported by the spring 36. An operating shaft 23 installed to be moved downward, a switch gear 24 integrally installed below the rotary switch knob 22 so that the rotary switch knob 22 can be rotated together when the rotary switch knob 22 is rotated, and the rotary switch The electromotive force generating means 25 for generating electromotive force by the rotational force of the knob 22 and the switch gear 24 interlocked with the knob 22 and the electromotive force generated by the electromotive force generating means 25 are input to the rotary switch knob 22. On the PCB 30 which detects the rotation angle and controls the display means such that functions that can be performed at each one-click rotation operation of the rotary switch knob 22 are displayed in a preset order. Rotary-type contactless information switch comprises a micro-controller 31. 2. A function selection sensing circuit comprising two contact points (33a, 33b) intermittent on the PCB (30) and a pressing operation of the rotary switch knob (22) installed at the lower end of the operating shaft (23). The apparatus further includes a rubber point switch 34 for selecting a function intermittent between the two contacts 33a and 33b of the function selection detecting circuit, and detecting the contact point when the two contacts 33a and 33b of the function selecting detecting circuit are closed. The micro-controller 31 is a rotary contactless information switch, characterized in that for outputting an electrical signal for performing the function to the corresponding electrical equipment. The electromotive force generating means (25) according to claim 1, wherein the electromotive force generating means (25) is engaged with the switch shaft (24) and the rotary shaft (26) vertically arranged in parallel with the operating shaft (23) inside the switch body (21). A pinion gear 27 mounted on the upper end of the rotating shaft 26, a rotor 28 which is integrally mounted on the rotating shaft 26, which is composed of a circular permanent magnet divided into N poles and S poles, and Rotary type contactless information, characterized in that it consists of a cross coil 29 disposed around the electrons 28 to generate an electromotive force at the time of rotation of the rotor 28 and input this electromotive force to the microcontroller 31. switch. The electromotive force generated in the cross coil 29 according to claim 1 or 3, wherein the microcontroller 31 is caused by the amount of rotation of the pinion gear 27 according to one pitch rotation of the switch gear 24. Rotary input contactless information switch, characterized in that the rotary switch knob 22 detects that the rotary switch knob 22 is rotated by one click after converting it into one pulse. 4. The rotary contactless information switch according to claim 3, wherein the pinion gear is rotated by 45 [deg.] In one pitch rotation of the switchgear. The microcontroller (31) according to claim 1, wherein the microcontroller (31) controls a power circuit on a PCB capable of outputting current to the cross coil (29) in order to give a sense of theft every one click rotation operation of the rotary switch knob (22). Rotary contactless information switch, characterized in that to apply a current having the opposite polarity of the electromotive force to the cross coil (29) whenever the one-click rotation operation of the rotary switch knob (22) is sensed.