JP2016100043A - Operating device - Google Patents

Abstract

Non-contact multipoint switching inside a casing can be realized with a simple structure by switching operation outside the casing without being restricted by space.
An operation member 32 of an operation device 30A is disposed outside a waterproof housing case 20 and moves a magnet member 36 to a plurality of switching positions. The magnetic detection unit 28 is disposed inside the waterproof housing case 20 and outputs a magnetic detection signal corresponding to the magnetic strength of the magnet member 36 that is moved by the operation member 32. Based on the magnetic detection signal output from the magnetic detection unit 28, the control unit outputs a switching signal indicating the switching position of the operation member 32 to the electric circuit and performs switching control.
[Selection] Figure 4

Description

  The present invention relates to an operation device for a waterproof device that performs multipoint switching of an electric circuit housed in a waterproof housing in a non-contact manner from the outside.

  2. Description of the Related Art Conventionally, for example, a wireless waterproof sensor, which is a waterproof device, needs to perform various setting operations including selection of a frequency channel for a communication unit housed in a waterproof housing. When such a setting operation is performed with a switch that directly operates, a waterproof structure is required for the switch operation unit, the structure becomes complicated, and it is difficult to achieve a completely sealed structure.

  In order to solve this problem, the inventor of the present application has proposed an operating device that performs various settings for an electric circuit housed in a waterproof casing using a non-contact type setting member.

  The conventional operation device uses, for example, a magnet member as a non-contact type setting member, and provides a setting hole as a blind hole that opens on the back side of the waterproof housing and inserts the magnet member, and is waterproof to correspond to the setting hole. A magnetism detecting element is arranged inside the housing, and the presence or absence of a magnet member with respect to the setting hole is detected to set a parameter such as a channel frequency of the communication unit.

JP 2011-086411 A JP 2012-128543 A

  However, in such a conventional operation device for disaster prevention type equipment, the presence or absence of a magnet member with respect to the setting hole provided on the rear surface side of the casing is detected by a magnetic detection element arranged in the casing, and various kinds of electric circuits Although the setting is performed, the number of setting holes that can be provided on the back side of the sensor is limited, so that there is a problem that the number of parameters that can be set for the electric circuit is limited.

  For example, in the 400MHz band specific low power radio station standard used in wireless waterproof sensors, there are 48 usable channel frequencies, but only some of them can be selected. There is a problem that the possible channel frequency is low.

  The present invention provides an operation device for a waterproof device capable of realizing a multipoint switching by a non-contact inside a housing with a simple structure by a switching operation outside the housing without being restricted by space. For the purpose.

(Operating device)
The present invention provides an operating device provided in a device in which an electric circuit is arranged inside a housing.
An operation member disposed outside the housing and moving the magnet member to a plurality of switching positions;
A magnetic detection unit that is arranged inside the housing and outputs a magnetic detection signal corresponding to the magnetic strength of the magnet member that is moved by the operation member;
A control unit that outputs a switching signal indicating a switching position of the operation member to the electric circuit based on a magnetic detection signal output from the magnetic detection unit;
It is provided with.

(Display of switching position)
When the control unit controls the electric circuit based on the switching signal, the control unit causes the display unit to display the switching content by the operation member.

(Switching position according to polarity and level of magnetic detection signal)
The magnetic detection unit outputs a magnetic detection signal of a level corresponding to the polarity and the magnetic strength according to the magnetic direction of the magnet member,
The control unit outputs a switching signal indicating the switching position of the operation member based on the polarity and level of the magnetic detection signal.

(Switching positioning mechanism)
The operation member includes a positioning mechanism that holds the switching position when moved to a plurality of switching positions.

(Rotation switching operation)
The operating member rotates the magnet member and moves to a plurality of switching positions.

(Detection of switching position by rotation of magnet member)
The magnet member is rod-shaped, and the operation members at both ends are rotatably arranged by a rotation axis perpendicular to the magnetic force line passing through the magnetic pole surface of the magnet member,
The magnetic detection unit is disposed at a predetermined position outside the magnetic pole surface rotation position on the rotation surface of the magnet member,
The control unit is configured for each predetermined angle set in a rotation range of 180 ° from the initial position where one magnetic pole surface of the magnet member is opposed to the magnetic detection unit to the other magnetic pole surface of the magnet member is opposed to the magnetic detection unit. A switching signal indicating a plurality of switching positions is output to the electric circuit for control.

(Detection of switching position by rotation of magnet member and magnetic body)
The magnet member is rod-shaped, and the operation member is rotatably disposed by a rotation axis orthogonal to the magnetic field lines passing through the magnetic pole surfaces at both ends of the magnet member, and passes through the magnetic pole surfaces at both ends on the rotation surface of the magnet member by the rotation shaft. Arranging a magnetic body that rotates integrally with the magnet member at a predetermined position perpendicular to the magnetic field lines,
The magnetic detection unit is disposed at a predetermined position outside the magnetic pole surface rotation position on the rotation surface of the magnet member,
The control unit has a first rotation range that is not affected by the 180 ° magnetic material from the initial position where one of the magnetic pole surfaces of the magnet member faces the magnetic detection unit until the other magnetic pole surface faces the magnetic detection unit. A switching signal indicating a plurality of switching positions for each predetermined angle set in the above and a switching signal of a predetermined angle different in level from the switching signal of the first setting range set in the second rotation range affected by the remaining 180 ° magnetic body Each switching signal indicating the position is output to an electric circuit for control.

(Detection of switching position by rotation of magnet member, magnetic body and diamagnetic body)
The magnet member is rod-shaped, and the operation member is rotatably arranged by a rotation axis orthogonal to the magnetic field lines passing through the magnetic pole surfaces at both ends of the magnet portion, and the magnetic pole surfaces at both ends on the rotation surface of the magnet member by the rotation shaft are arranged. A ferromagnetic body and a diamagnetic body that rotate integrally with the magnet member are disposed at a predetermined position orthogonal to the magnetic field lines that pass through, with the rotation axis interposed therebetween,
The magnetic detection unit is disposed at a predetermined position outside the magnetic pole surface rotation position on the rotation surface of the magnet member,
The control unit is set to a first rotation range that is affected by a 180 ° diamagnetic material from the initial position where one magnetic pole surface of the magnet member is opposed to the magnetic detection unit to the other magnetic pole surface is opposed to the magnetic detection unit. Switching signals indicating a plurality of switching positions for each predetermined angle, and switching signals of a predetermined angle different from the first setting range switching signal set in the second rotation range affected by the remaining 180 ° ferromagnetic material Each of the switching signals indicating is output to an electric circuit and controlled.

(Detection of switching position by magnetic detectors arranged in two places)
The rod-shaped magnet member is rod-shaped, and the operation member is rotatably disposed by a rotation axis orthogonal to the magnetic force lines passing through the magnetic pole surfaces at both ends of the magnet member.
The magnetic detection unit is arranged at two predetermined positions that are 90 ° different from each other outside the magnetic pole surface rotation position on the rotation surface of the magnet member,
The control unit outputs a switching signal indicating a plurality of switching positions based on a combination of different detection signals of the magnetic detectors arranged at the two positions for each predetermined angle in one rotation of the magnet member to the electric circuit and controls it.

(Slide switching operation)
The operating member slides on the magnet member and moves to a plurality of switching positions.

(Basic effect)
The present invention provides an operating device provided in a device in which an electric circuit is arranged inside a housing, an operating member arranged outside the housing and moving a magnet member to a plurality of switching positions, and arranged inside the housing. A magnetic detection unit that outputs a magnetic detection signal corresponding to the magnetic strength of the magnet member that is moved by the operation member, and a switching signal that indicates a switching position of the operation member based on the magnetic detection signal output from the magnetic detection unit. Since a control unit that outputs to an electric circuit is provided, an operation member is provided outside the housing so that the magnet member can be moved to a plurality of switching positions, a magnetic detection unit is provided inside the housing, Since it is only necessary to provide a magnetic detection unit, multipoint switching can be performed without being restricted by installation space, and since the structure of the operation device is simple, downsizing is easy and cost can be reduced.

(Effect by display of switching position)
In addition, when the control unit controls the electric circuit based on the switching signal, the switching content by the operation member is displayed on the display unit. Therefore, when the channel frequency is switched by the switching operation, for example, on the display unit. By displaying the channel switched by the number of blinking of the provided LED, the result of the switching operation can be easily confirmed.

(Effect of switching position by polarity and level of magnetic detection signal)
In addition, the magnetic detection unit outputs a magnetic detection signal having a level corresponding to the polarity and magnetic strength according to the direction of magnetism from the magnet member, and the control unit is operated based on the polarity and level of the magnetic detection signal. Since a switching signal indicating the switching position of the member is output, more multipoint switching is possible depending on the polarity and level of the magnetic detection signal.

(Effects of switching positioning mechanism)
In addition, the operation member is provided with a positioning mechanism that holds the switching position when it is moved to a plurality of switching positions, so that when the operation member is moved, the operation member is surely moved to the required switching position to perform the switching control. Make it possible.

(Effect by rotation switching operation)
In addition, since the operation member rotates the magnet member to move to a plurality of switching positions, switching operation equivalent to that of a conventional rotary switch is possible, and multi-point switching can be performed by rotating the operation member. It saves operation space and can be operated easily even in a small place.

(Effect by detecting switching position by rotation of magnet member)
In addition, the magnet member is rod-shaped, the operation members at both ends are rotatably arranged by a rotation axis orthogonal to the magnetic force line passing through the magnetic pole surface of the magnet member, and the magnetic detection unit rotates the magnetic pole surface on the rotation surface of the magnet member. The control unit is arranged at a predetermined position outside the position, and the control unit 180 degrees from the initial position where one magnetic pole surface of the magnet member is opposed to the magnetic detection unit to the other magnetic pole surface of the magnet member is opposed to the magnetic detection unit. Since the switching signal indicating a plurality of switching positions for each predetermined angle set in the rotation range is output and controlled to the electric circuit, the operation member is switched to a predetermined angle unit within a range of 180 °, For example, a plurality of channel frequencies can be selected.

(Effect of switching position detection by rotation of magnet member and magnetic body)
The magnet member is rod-shaped, and the operation member is rotatably arranged by a rotation axis orthogonal to the magnetic field lines passing through the magnetic pole surfaces at both ends of the magnet member, and the magnetic pole surfaces at both ends on the rotation surface of the magnet member by the rotation shaft. The magnetic body that rotates integrally with the magnet member is disposed at a predetermined position orthogonal to the magnetic force line passing through the magnetic member, the magnetic detection unit is disposed at a predetermined position outside the magnetic pole surface rotation position on the rotation surface of the magnet member, and the control unit is The first rotation range that is not affected by the 180 ° magnetic material from the initial position where one of the magnetic pole surfaces of the magnet member is opposed to the magnetic detection portion to the other magnetic pole surface is opposed to the magnetic detection portion. A switching signal indicating a plurality of switching positions for each angle and a switching signal indicating a plurality of switching positions at a predetermined angle different in level from the switching signal of the first setting range set in the second rotation range affected by the remaining 180 ° magnetic body. Each of the signals Since control is performed by outputting to the electric circuit, in addition to the switching position in the first rotation range of 180 ° from the initial position, the switching position in the second rotation position of the remaining 180 ° is added, so that 1 of the investigation member The number of switching by rotation can be increased.

(Effect of detection of switching position by rotation of magnet member, magnetic body and diamagnetic body)
The magnet member is rod-shaped, and the operation member is rotatably arranged by a rotation axis orthogonal to the magnetic field lines passing through the magnetic pole surfaces at both ends of the magnet portion, and the magnetic poles at both ends on the rotation surface of the magnet member by the rotation shaft. A ferromagnetic body and a diamagnetic body that rotate integrally with the magnet member are disposed relative to each other at a predetermined position orthogonal to the magnetic field lines passing through the surface, with the rotation axis centered, and the magnetic detection unit rotates the magnetic pole surface on the rotating surface of the magnet member. The control unit is arranged at a predetermined position outside the position, and the control unit has a 180 ° diamagnetic body from the initial position where one magnetic pole surface of the magnet member is opposed to the magnetic detection unit to the other magnetic pole surface is opposed to the magnetic detection unit A switching signal indicating a plurality of switching positions for each predetermined angle set in the first rotation range affected by the first rotation range, and a switching signal for the first setting range set in the second rotation range affected by the remaining 180 ° ferromagnetic material, Multiple cuts at predetermined angles with different levels Since each of the switching signals indicating the replacement position is output to the electric circuit and controlled, switching is performed at the second rotation position of the remaining 180 ° in addition to the switching position within the first rotation range of 180 ° from the initial position. By adding the position, the number of switching by one rotation of the investigation member can be increased. Further, the magnetic detection level is lowered due to the influence of the diamagnetic material in the first rotation range, and the ferromagnetic material in the second rotation range. By increasing the magnetic detection level due to the influence, the level difference at the relative position where the rotation angle is different by 180 ° is enlarged so that it can be easily distinguished, thereby improving the switching detection performance.

(Detection of switching position by magnetic detectors arranged in two places)
Further, the rod-shaped magnet member is rod-shaped, the operation member is rotatably arranged by a rotation axis orthogonal to the magnetic force lines passing through the magnetic pole surfaces at both ends of the magnet member, and the magnetic detection unit is a magnetic pole on the rotation surface of the magnet member. The controller is arranged at two predetermined positions different from each other by 90 ° on the outer side of the surface rotation position, and the control unit has a plurality of combinations of different detection signals of the magnetic detectors arranged at the two positions for each predetermined angle in one rotation of the magnet member. A switching signal indicating the switching position is output to the electric circuit for control.

(Effect by slide switching operation)
In addition, since the operating member is slid on the magnet member and moved to a plurality of switching positions, it is possible to perform a switching operation equivalent to a DIP switch having a conventional slide switch structure, and it is easy to reduce the size and installation space. It can be reduced.

Explanatory drawing showing a wireless waterproof sensor as an example of a waterproof device The perspective view which showed the waterproof type sensor provided with the operation device from the back side Sectional view showing the internal structure of the waterproof sensor Explanatory drawing which extracted and showed embodiment of the rotary type operating device provided in the waterproof type sensor Block diagram showing the functional configuration of a waterproof sensor equipped with an operation device Explanatory drawing which showed the change of magnetic field line distribution when rotating a magnet member with a rotary type operation device Explanatory drawing which showed the change of the magnetic detection signal with respect to a rotation angle at the time of switching rotation of a magnet member with an operation member Explanatory drawing which showed the change of the magnetic force line distribution at the time of rotating and switching a magnet member with a rotary type operation device provided with a ferromagnetic material Explanatory drawing which showed the change of the magnetic detection signal with respect to a rotation angle at the time of rotating a magnet member with the operation member following FIG. Explanatory drawing which showed the change of the magnetic detection signal with respect to a rotation angle at the time of rotating a magnet member with the operation member provided with the ferromagnetic material. Explanatory drawing which showed the change of the magnetic force line distribution at the time of rotating and switching a magnet member with a rotary type operating device provided with a ferromagnetic material and a diamagnetic material Explanatory drawing which showed the change of the magnetic detection signal with respect to a rotation angle at the time of switching rotation of a magnet member with the operation member following FIG. Explanatory drawing which showed the change of the magnetic detection signal with respect to a rotation angle at the time of rotating and switching a magnet member with the operation member provided with a ferromagnetic material and a diamagnetic material. Block diagram showing the functional configuration of a waterproof sensor provided with an operating device having two magnetic detectors Explanatory drawing which showed the change of the magnetic force line distribution at the time of rotating and switching a magnet member with the rotary type operating device which has two magnetic detectors Explanatory drawing which showed the change of the magnetic detection signal with respect to a rotation angle at the time of rotating a magnet member with the operation member following FIG. Explanatory drawing which showed the change of the magnetic detection signal with respect to the rotation angle of the two magnetic detectors when the magnet member is rotationally switched by the operation member An explanatory diagram showing a list of channel switching by combining magnetic detection signals from two magnetic detectors Explanatory drawing showing an embodiment of a slide type operation device provided for waterproof sensing Explanatory drawing which showed the change of magnetic field line distribution when a magnet member is switched and moved with a slide type operation device Explanatory drawing which extracted and showed other embodiment of the slide type operating device provided in the waterproof type sensing

[Outline of waterproof sensor]
FIG. 1 is an explanatory view showing a wireless waterproof sensor as an example of a waterproof device provided with an operating device according to the present invention. FIG. 1 (A) shows a front view, and FIG. The top view seen from the side is shown. FIG. 2 is a perspective view showing a waterproof sensor provided with an operating device from the back side.

  As shown in FIG. 1, the waterproof sensor 10 according to the present embodiment is configured so that a thermal airflow caused by a fire is received in a temperature detection unit 16 using a thermistor or the like inside a card cover 14 formed in a lower part of a cover 12. The LEDs 15 are provided at two positions visible from the lower side of the cover 12 and operate as a warning indicator lamp.

  As shown in FIG. 2, the waterproof type sensor 10 is provided with a rotary type operation device 30 </ b> A at the center of the back surface located on the ceiling surface side of the cover 12, and the operation device 30 </ b> A has an operation knob in the cover member 34. An operation member 32 is provided, and the operation member 32 has, for example, five switching positions that can be switched by a rotation operation, and can switch and select a channel frequency for a built-in communication unit.

[Internal structure of waterproof sensor]
FIG. 3 is a cross-sectional view showing the internal structure of the waterproof sensor. As shown in FIG. 3, the waterproof sensor 10 houses a waterproof casing body 18 inside a cover 12, and a waterproof casing cover 20 is fixed to the upper portion of the waterproof casing body 18 via a seal ring 22. A sealed space is formed inside. A circuit board 24 is incorporated in a waterproof casing composed of the waterproof casing body 18 and the waterproof casing cover 20.

  An operation device 30A is provided on the upper part of the waterproof housing cover 20, that is, on the back side of the waterproof sensor 10, and the operation device 30A incorporates a magnet member 36 below the operation member 32. The magnet member 36 is rotated by the rotation operation. Inside the waterproof housing cover 20 close to the magnet member 36 provided on the operation member 32, a magnetic detection unit 28 connected to the circuit board 26 erected with respect to the circuit board 24 is arranged, and the operation member 32 is rotated. A magnetic detection signal corresponding to a change in magnetic strength from the magnet member 36, that is, a change in magnetic flux density, is output.

[Rotary type operation device]
4A and 4B are explanatory views showing an embodiment of a rotary type operating device provided in the waterproof sensor. FIG. 4A shows a plane, FIG. 4B shows a cross section, and FIG. (C) has shown the accommodation hole of the operating device by the plane.

  As shown in FIG. 4, the rotary type operation device 30 </ b> A accommodates an operation member 32 in which a magnet member 36 is incorporated laterally in the center of the lower end in a cylindrical accommodation hole 31 formed in the waterproof housing cover 20. The cover member 34 is disposed so as to be freely removed by being screwed into the storage hole 31.

  More specifically, the operation member 32 is a stepped cylindrical body having an upper small-diameter portion 32a and a lower large-diameter portion 32b. A rod-like magnet member 36 is incorporated in a lateral direction so that the magnetic poles are positioned on the left and right. ing. The cover member 34 forms a cylindrical portion on the lower side of the ring-shaped cover main body, the outside of the cylindrical portion is a screw portion, and the screw portion is inserted into the small diameter portion 32a of the operation member 32 from above, and the screw portion is accommodated in the storage hole 31. The operating member 32 is rotatably disposed in the storage hole 31 by being screwed into the screw hole 31a.

  The operating device 30A is provided with a positioning mechanism for the operating member 32. In this positioning mechanism, a positioning projection 32c is formed on the left side of the lower end of the operation member 32 in the figure, and correspondingly, positioning recesses 35a to 35e are provided at the bottom of the storage hole 31, and 45 ° in the range of 0 ° to 180 °. The operation member 32 can be stopped at the switching position where the positioning projection 32c is fitted to the positioning recesses 35a to 35e.

  Corresponding to this switching position, a marker 38 indicating the switching position is provided on the upper surface of the operation member 32, and CH1 indicating the channel switching position is provided on the cover member 34 at intervals of 45 ° in the range of 0 ° to 180 °. , CH2, CH3. CH4 and CH5 are displayed.

  The magnetic detection unit 28 uses a Hall element. As is well known, the Hall element utilizes the Hall effect in which an electromotive force is generated in a direction orthogonal to both the current and the magnetic field when a magnetic field is applied in a direction perpendicular to the current flowing through the Hall element.

  The Hall element can be equivalently expressed by a resistance bridge circuit. When the magnetism is approached, the balance of the resistance bridge circuit is lost, and a magnetic detection signal corresponding to the strength of the magnetism is output. Hall sensors include a single pole detection type that detects only the S or N pole, and a bipolar detection type that detects both the S or N pole. In this embodiment, the bipolar detection type is used. doing.

  The magnetic detection unit 28 is disposed at a predetermined position in the waterproof housing cover 20 opposite to the N pole of the magnet member 36 provided on the operation member 32 at the initial position shown in the drawing. When rotating, the strength of the magnetic field passing through the Hall element and the direction of the magnetic field change, and a magnetic detection signal having a polarity corresponding to the direction of the magnetic field is output at a level corresponding to the strength of the magnetic field.

[Functional configuration of waterproof sensor]
(Outline of functional configuration)
FIG. 5 is a block diagram showing a functional configuration of a waterproof sensor provided with an operation device. As shown in FIG. 5, the waterproof sensor 10 includes a control unit 60, a communication unit 62 connected with an antenna 64, a sensor unit 66, a display unit 68, an operation device 30 </ b> A including a magnetic detection unit 28, and a battery power source 70. It is composed.

  The control unit 60 is configured by a microprocessor unit (MPU) including a CPU, a memory, various input / output ports, and the like as hardware. The control unit 60 realizes a control function by executing a program by the CPU.

  The communication unit 62 includes a transmission circuit, and in the case of Japan, for example, performs wireless communication in accordance with the standard of a specific low-power wireless station in the 400 MHz band. The channel frequency of the communication unit 62 is, for example, five channel frequencies f1, f2, f3,... Among 48 channel frequencies that can be used in the specific low power radio station standard in the 400 MHz band. f4 and f5 can be selectively used. This frequency channel f1, f2, f3. In the following description, f4 and f5 are described as channels CH1, CH2, CH3, CH4, and CH5.

  When an event such as a fire is detected, the communication unit 62 transmits a telegram signal (hereinafter referred to as “telegram”) having a predetermined telegram format based on an instruction from the control unit 60. The message format is composed of a phase correction signal, transmission source ID, message content and error check code. The receiver side sees the transmission source ID to determine whether it matches the registered node ID, and then the meaning of the message content. Judge and process.

  The sensor unit 66 includes a temperature detection unit such as a thermistor and outputs a temperature detection signal to the control unit 60. The display unit 68 includes an LED functioning as a notification display lamp, and the LED is driven to display when the channel switching operation is performed by the operation device 30A in addition to the notification display.

  The operating device 30A has the structure shown in FIG. 4, and the channel frequency can be selected by switching to any of the channels CH1, CH2, CH3, CH4, and CH5 by rotating the operating member 32.

(Detection of switching position by magnetic detector)
FIG. 6 is an explanatory diagram showing changes in the distribution of magnetic lines when the rotation of the magnet member is switched by a rotary type operating device. FIG. 7 shows changes in the magnetic detection signal with respect to the rotation angle when the rotation of the magnet member is switched by the operation member. It is explanatory drawing shown.

  In the switching position of the channel CH1 where the rotation angle θ = 0 ° shown in FIG. 6A, the N pole of the magnet member 36 is opposed to the magnetic detection unit 28, and the lines of magnetic force directed from the N pole to the S pole are magnetic detection unit 28. Is passed in the direction perpendicular to the direction of the current flowing through the Hall element, and a magnetic detection signal having a positive saturation level is output. That is, the magnetic detection unit 28 outputs a magnetic detection signal having a positive polarity saturation level, as indicated by point P1 in FIG.

  In the switching position of the channel CH2 where the rotation angle θ = 45 ° rotated counterclockwise as shown in FIG. 6B, the N pole of the magnet member 36 moves away from the magnetic detection unit 28, and the magnetic lines of force from the N pole toward the S pole are magnetized. As shown by the magnetic vector B2, the detection unit 28 passes obliquely and outputs a magnetic detection signal whose level is lowered according to the strength of the horizontal component of the magnetic vector B2. That is, as shown at point P2 in FIG. 7, the magnetic detection unit 28 outputs a magnetic detection signal having a level lower than the positive polarity saturation level.

  At the switching position of the channel CH3 where the rotation angle θ = 90 ° rotated counterclockwise as shown in FIG. 6C, the N pole of the magnet member 36 is further away from the magnetic detection unit 28, and the magnetic field lines from the N pole to the S pole are It passes through the magnetic detection unit 28 as indicated by the magnetic vector B2, and this passes through in the direction substantially the same as the direction of the current flowing through the Hall element. Output. That is, the magnetism detection unit 28 outputs a magnetism detection signal lowered to substantially zero level as indicated by point P3 in FIG.

  In the switching position of the channel CH4 where the rotation angle θ = 135 ° rotated counterclockwise as shown in FIG. 6D, the S pole of the magnet member 36 approaches the magnetic detection unit 28, and the magnetic lines of force from the N pole toward the S pole are magnetized. As shown by the magnetic vector B4, the detection unit 28 passes obliquely, and the horizontal component of the magnetic vector B2 is reversed, which passes in the opposite direction to FIG. 6B, which is orthogonal to the direction of the current flowing through the Hall element. Therefore, a magnetic detection signal having a predetermined level of negative polarity is output. That is, the magnetic detection unit 28 outputs a magnetic detection signal that has changed to a predetermined level of negative polarity as indicated by point P4 in FIG.

  In the switching position of the channel CH5 where the rotation angle θ = 180 ° rotated counterclockwise as shown in FIG. 6 (E), the S pole of the magnet member 36 is opposed to the magnetic detection unit 28, and the magnetic force line toward the S pole is the magnetic detection unit. 28 passes horizontally as indicated by the magnetic vector B5, which passes in the direction opposite to that of FIG. 6A perpendicular to the direction of the current flowing through the Hall element, resulting in a negative polarity saturation level. A magnetic detection signal is output. That is, the magnetic detection unit 28 outputs a magnetic detection signal having a negative polarity saturation level, as indicated by point P5 in FIG.

  When the magnet member 36 is further switched to θ = 225 °, 270 °, 315 °, and 360 °, the same polarity and the same level of magnetic detection as in the case of θ = 135 °, 90 °, 45 °, and 0 ° Since the signal output is indistinguishable, the switching position of θ = 225 °, 270 °, 315 °, 360 ° is not used.

As shown in FIG. 7, the control unit 60 provided in the waterproof sensor 10 of FIG. 5 responds to the magnetic detection signal output from the magnetic detection unit 28 with threshold values + TH1, P2 between the points P1 and P2. Threshold value TH2 between point P3 and point P3, threshold value TH2 between point P3 and point P4, and threshold value TH1 between point P4 and point P5 are set.
CH1: + TH1 <E
CH2: + TH2 <E <+ TH1
CH3: -TH2 <E <+ TH2
CH4: -TH2 <E <-TH1
CH5: -TH2> E
And switching of the channels CH1 to CH5 is controlled.

  In addition, when the control unit 60 determines the switching position from the magnetic detection signal and selects any one of the channels CH1 to CH5, for example, the control unit 60 controls to identify and display the selected channel based on the number of blinking LEDs provided in the display unit 68. I do. For example, the control unit 60 blinks the LED once when selecting the channel CH1, blinks the LED twice when selecting the channel CH2, and blinks the LED three times when selecting the channel CH3. When selected, the LED blinks four times, and when channel CH5 is selected, the LED blinks five times.

  6 and 7 take channel setting as an example, but other than this, it can also be used for setting the sleep mode, wake-up mode, etc. of the CPU that realizes the function of the control unit 60 of FIG. The power operation of the waterproof sensor can be performed together with the channel setting. This also applies to the following embodiments.

[Rotary operation device with magnet member and ferromagnetic material]
FIG. 8 is an explanatory view showing a change in magnetic field distribution when the magnetic member is rotated and switched by a rotary type operating device provided with a ferromagnetic material, and FIG. 9 is a case where the magnet member is rotated and switched by the operating member following FIG. FIG. 10 is an explanatory view showing a change in the magnetic detection signal with respect to the rotation angle when the magnet member is rotated and switched by the operation member having a ferromagnetic material. . In FIG. 10, the characteristics when there is no ferromagnetic material are indicated by imaginary lines.

  In the embodiment shown in FIGS. 4 to 7, the switching position of the operating member 32 is set to a rotation range of 180 ° from the initial position. In this embodiment, in addition to this, the remaining 180 ° is set. In this rotation range, it is possible to set the switching position, and to increase the number of switching by rotation of the operation member 32.

  FIG. 8A shows the magnetic force line distribution of the magnet member 36 in a state where the operation member is operated to the initial position, and magnetic detection is performed at a predetermined position relative to the N pole magnetic pole surface of the rotatable rod-shaped magnet member 36. This is the same as the embodiment shown in FIGS. 4 to 7. In addition to this, in the present embodiment, the ferromagnetic body 50 is integrated with the magnet member 28 at a position orthogonal to the magnetic field lines passing through the magnetic pole surfaces at both ends with respect to the rotation axis O perpendicular to the paper surface of the magnet member 36. It is arranged so that it can rotate freely. Further, the rotational position of the ferromagnetic body 50 is arranged on the operation member 32 so as to be positioned outside, for example, without hitting the magnetic detector 28 at the rotational position of 270 ° shown in FIG.

(Detection of switching position by magnetic detector)
In the first rotation range from 0 ° to 180 ° of the initial position where the operation member 32 shown in FIGS. 8A to 8E is switched and rotated in units of 45 °, the ferromagnetic body 50 rotates integrally with the magnet member 36. Hardly affects the magnetic field lines passing through the magnetic detector 28, and the magnetic body 50 may be ignored, so that magnetic detection signals shown at points P1 to P5 in FIG. 10 are obtained and the channels CH1 to CH5 are obtained. Can be switched.

  On the other hand, in the second rotation range of 180 ° remaining as shown in FIGS. 8E to 9H to 8A, the ferromagnetic body 50 that rotates integrally with the magnet member 36 has a magnetic detector. This affects the magnetic field lines passing through 28. For example, the magnetic field lines pass so as to gather in the ferromagnetic body 50. When the ferromagnetic body 50 approaches the magnetic detector 28, the magnetic field lines passing through the magnetic detector 28 increase, and accordingly, the level of the magnetic detection signal is increased. Will increase. Therefore, as shown in FIG. 10, in the range of 180 ° to 360 °, the level of the magnetic detection signal increases due to the influence of the magnetic body 50 and the rotation angle θ = 225 ° compared to the range of 0 ° to 180 °. Unlike the level at the point P4 at which the rotation angle θ = 135 °, the level at the point P6 becomes the channel CH6. Further, the level of the point P7 where the rotation angle θ = 315 ° is different from the level of the point P2 where the rotation angle θ = 45 °, and the channel CH7 can be switched. For this reason, by one rotation of the operation member 32, it is possible to switch the seven frequency channels serving as the channels CH1 to CH7.

  In FIGS. 8 and 9, a diamagnetic material may be used instead of the ferromagnetic material 50. The diamagnetic material 51 is a substance such as copper, zinc, or lead that is magnetized in a direction opposite to the magnetic field when placed in a magnetic field.

  When a diamagnetic material is used instead of the ferromagnetic material 50, the rotation angle θ = 0 ° to 180 ° has the same characteristics as in FIG. 7, and at the rotation angle θ = 180 ° to 360 °, the ferromagnetic material is changed. Under the influence opposite to the case of using, the level of the point P6 becomes higher than the level of the point P4, and the level of the point P7 becomes smaller than the point P2, so that the channel CH1 to CH7 is rotated by one rotation of the operation member 32. 7 frequency channels can be switched.

[Rotary type operation device provided with a magnet member, a ferromagnetic material and a diamagnetic material]
FIG. 11 is an explanatory diagram showing changes in the distribution of magnetic lines of force when the rotation of the magnet member is switched by a rotary type operation device having a magnetic body and a diamagnetic body, and FIG. 12 is a view of rotating the magnet member by the operation member following FIG. FIG. 13 is an explanatory diagram showing a change in the magnetic detection signal with respect to the rotation angle when switching, and FIG. 13 shows a change in the magnetic detection signal with respect to the rotation angle when the rotation of the magnet member is switched with an operation member having a ferromagnetic material and a diamagnetic material. It is explanatory drawing which showed. In FIG. 13, the characteristics when there is no ferromagnetic material and no diamagnetic material are indicated by imaginary lines.

  In this embodiment, in addition to the ferromagnetic materials shown in FIGS. 8 and 9, a diamagnetic material is further provided, and the level of the magnetic detection signal at the rotation angles of 45 ° and 315 ° and at the rotation angles of 135 ° and 225 °. It is characterized in that the detection performance is enhanced by increasing the difference. The diamagnetic material 51 is a substance such as copper, zinc, or lead that is magnetized in the opposite direction to the character when placed in a magnetic field.

  FIG. 11A shows the magnetic force line distribution of the magnet member 36 in a state where the operation member is operated to the initial position, and magnetic detection is performed at a predetermined position relative to the magnetic pole surface of the N pole of the rotatable rod-shaped magnet member 36. The ferromagnetic member 50 is disposed so as to be rotatable integrally with the magnet member 28 at a position perpendicular to the magnetic field lines passing through the magnetic pole surfaces at both ends with respect to the rotation axis O perpendicular to the paper surface of the magnet member 36. This point is the same as the embodiment of FIGS. In addition to this, in the present embodiment, the diamagnetic member 51 is rotatably disposed integrally with the magnet member 28 at a position opposite to the ferromagnetic member 50 with respect to the rotational axis O.

(Detection of switching position by magnetic detector)
The influence of the ferromagnet 50 on the magnetic detector 28 by one rotation of the operation member 32 shown in FIGS. 11A to 12H is the same as in FIGS. 8 and 9, and FIG. In the second rotation range shown in FIG. 9H to FIG. 8A, the ferromagnet 50 affects the magnetic field lines passing through the magnetic detector 28, and magnetic detection passes through points P6 and P7 in FIG. Characteristics are obtained.

  On the other hand, the diamagnetic body 51 that rotates integrally with the magnet member 36 has the first position from 0 ° to 180 ° of the initial position where the operation member 32 shown in FIGS. The magnetic field lines passing through the magnetic detector 28 are affected in one rotation range. For example, the magnetic field lines pass so as to avoid the diamagnetic body 51. When the diamagnetic body 51 approaches the magnetic detector 28, the magnetic field lines passing through the magnetic detector 28 decrease, and accordingly, the level of the magnetic detection signal. Decreases.

  Therefore, as shown in FIG. 13, in the range of 0 ° to 180 °, the level of the magnetic detection signal decreases due to the influence of the diamagnetic body 51 compared to the case without the diamagnetic body 51, and the rotation angle θ = 45. The level at the P2 point that becomes ° decreases, and the level difference from the P7 point where the rotation angle θ = 315 ° becomes large, and the switching performance for distinguishing the channels CH2 and CH7 can be improved.

  In addition, the level at point P4 where the rotation angle θ = 135 ° decreases, the level difference from point P6 where the rotation angle θ = 225 ° increases, and the switching performance for distinguishing between channels CH4 and CH6 can be improved. And

[Rotary type operating device with two magnetic detectors]
FIG. 14 is a block diagram showing a functional configuration of a waterproof sensor having an operation device having two magnetic detectors, and FIG. 15 is a rotary type operation device having two magnetic detectors, and the rotation of the magnet member is switched. FIG. 16 is an explanatory diagram showing changes in the magnetic force distribution in the case, FIG. 16 is an explanatory diagram showing changes in the magnetic detection signal with respect to the rotation angle when the magnet member is rotationally switched by the operation member following FIG. 15, and FIG. FIG. 18 shows a list of channel switching by a combination of magnetic detection signals by two magnetic detectors. FIG. 18 shows a list of changes in magnetic detection signals with respect to the rotation angles of the two magnetic detectors when the magnet member is rotationally switched. It is explanatory drawing.

(Outline of functional configuration)
As shown in FIG. 14, the waterproof sensor 10 includes a control unit 60, a communication unit 62 connected with an antenna 64, a sensor unit 66, a display unit 68, and an operation device 30 </ b> A including two magnetic detection units 28 a and 28 b. 5 and the battery power source 70, and is the same as the embodiment of FIG. 5 except for switching control by the magnetic detectors 128a and 28b of the operating device 30A and the control unit 60 corresponding thereto.

  As for the magnetic detectors 28a and 28b, as shown in the magnetic field distribution of the magnet member 36 when the operation member is switched to the initial position by the operation member in FIG. The magnetic detector 28a is arranged at a predetermined radial position relative to the N-pole surface, and the magnetic detector 28b is arranged at a radial position on the same orthogonal rotation surface with a rotation angle shifted by 90 ° with respect to the magnetic detector 28a. doing.

  For this reason, as shown in FIGS. 15A to 16H, the magnetic detector 28a changes the magnetic field from B11 to B18 with respect to the change in the rotation angle of the magnetic member 36 in units of 45 °, thereby detecting the magnetic force. The magnetic detection signal from the device 28a changes in levels + V1, + V2, 0, -V2, -V1, -V2, 0, + V2 at points P11 to P18 shown in FIG.

  Further, as shown in FIGS. 15A to 16H, the magnetic detector 28b changes the magnetic field from B21 to B28 with respect to the change of the rotation angle of the magnetic member 36 in units of 45 °, thereby detecting the magnetic force. The magnetic detection signal from the device 28b changes in levels 0, + V2, + V1, + V2, 0, -V2, -V1, and -V2 at points P21 to P28 shown in FIG. The phase shift is 90 ° with respect to the detector 28a.

  As shown in FIG. 18, the control unit 60 performs eight switching operations corresponding to the rotations of 0 ° to 315 ° based on the combination of the magnetic detection signals of the 45 ° unit magnetic detectors 28a and 28b in one rotation of the magnet member 36. The position is discriminated and any one of the channels CH1 to CH8 can be selected.

[Sliding type operation device]
19A and 19B are explanatory views showing an embodiment of a slide type operating device provided in the waterproof sensor. FIG. 19A shows a cross section in the sliding direction, and FIG. 16B shows a cross section of the positioning mechanism. FIG. 19C shows a plane, and FIG. 19D shows a cross section in the horizontal direction orthogonal to the sliding direction. 19A is a cross section taken along the line AA in FIG. 19C, FIG. 19B is a cross section taken along the line BB in FIG. 19C, and FIG. 19D is a cross section taken along the line A in FIG. It becomes a DD cross section.

  As shown in FIG. 19, the slide type operating device 30 </ b> B has a rectangular operation in which a magnet member 36 is disposed laterally (sliding direction) in the center of the lower end in a rectangular slide hole 44 formed in the waterproof housing cover 20. The member 40 is slidably accommodated, and the cover member 42 is arranged so as to be prevented from slipping out by being fitted into the opening of the slide hole 44.

  More specifically, the operation member 40 is a stepped rectangular body having a narrow upper portion 40a and a wide lower portion 40b, and a rod-shaped magnet member 36 is disposed horizontally at the lower end so that the magnetic pole is positioned in the sliding direction. Yes.

  The operating device 30B is provided with a positioning mechanism for the operating member 40. In this positioning mechanism, positioning protrusions 40c are formed at two positions at the lower end of the operating member 40, and correspondingly, five positioning recesses 46a to 46e are arranged in two rows at predetermined intervals in the sliding direction of the bottom of the slide hole 44. The operation member 40 can be positioned and stopped at a switching position where the operation member 40 is fitted to the positioning recesses 46a to 46e by fitting the positioning projection 40c.

  Corresponding to the switching position, a marker indicating the switching position is provided on the upper surface of the operation member 32, and the cover member 42 is provided with CH1, CH2, CH3. CH4 and CH5 are displayed.

  The magnetic detection unit 28 uses a Hall element, and also uses a bipolar detection type that detects both the S pole and the N pole.

  The magnetic detection unit 28 positions the circuit board 24 in the waterproof housing cover 20 that coincides with the center of the magnet member 36 provided in the operation member 40 in a state where the operation member 40 is positioned at the initial position of the right end of the slide hole 44. When the operation member 40 is slid leftward, the magnet member 36 moves away from the magnetic detection unit 28, the strength of the magnetic field passing through the Hall element of the magnetic detection unit 28 is reduced, and the strength of the magnetic field is reduced. A magnetic detection signal having a polarity corresponding to the direction of the magnetic field is output at a corresponding level.

  In the following description, the switching positions of the operation member 40 are L1, L2, L3, L4, and L5 from the left side, and correspond to the channels CH1, CH2, CH3, CH4, and CH5, respectively.

(Detection of switching position by magnetic detector)
FIG. 20 is an explanatory diagram showing changes in the distribution of magnetic lines of force when a magnet member is slid with a slide type operating device. 20A shows the switching position L1 as the initial position, and FIGS. 20B and 20C show the second and third switching positions L2 and L3.

  At the switching position L1 of the channel CH1 that is the initial position shown in FIG. 20A, the center of the magnet member 36 is located with respect to the magnetic detection unit 28, and the magnetic lines of force from the N pole to the S pole of the magnet member 36 are magnetic. As indicated by the magnetic vector B1 of the detector 28, the magnetic detection signal passes through the Hall element at a right angle, and the magnetic detection signal has a predetermined peak level.

  At the switching position L2 of the channel CH2 shown in FIG. 20B, the magnet member 36 is moved to the left side with respect to the magnetic detection unit 28, and the magnetic force line from the N pole to the S pole of the magnet member 36 is the magnetic vector B2 of the magnetic detection unit 28. As shown by, the magnetic element passes through the Hall element obliquely, and the magnetic detection unit 28 outputs a magnetic detection signal having a level reduced from the peak level corresponding to the horizontal component of the vector B2.

  At the switching position L3 of the channel CH3 shown in FIG. 20C, the magnet member 36 is further moved to the left side with respect to the magnetic detection unit 28, and the magnetic force lines from the N pole to the S pole of the magnet member 36 are the magnetic vectors of the magnetic detection unit 28. As indicated by B3, the magnetic element 28 passes through the Hall element obliquely, and the magnetic detection unit 28 outputs a magnetic detection signal having a further lowered level.

  Further, at the switching positions L4 and L5 (not shown), the magnet member 36 moves further away from the magnetic detection unit 28, and the magnetic detection signal decreases sequentially.

  The control unit 60 provided in the waterproof sensor 10 in FIG. 5 is a threshold value for determining the level of each magnetic detection signal at the switching positions L1 to L5 with respect to the magnetic detection signal output from the magnetic detection unit 28 in FIG. Is set in advance, and control is performed to select one of the channels CH1 to CH5 based on the discrimination of the switching position.

[Sliding type operation device]
FIG. 21 is an explanatory view showing another embodiment of a slide type operating device provided for waterproof type sensing. FIG. 21 (A) shows a cross section in the sliding direction, and FIG. 21 (B) shows a positioning mechanism. FIG. 21C shows a cross section, and FIG. 21D shows a cross section in the horizontal direction orthogonal to the sliding direction. 21A is an AA cross section of FIG. 21C, FIG. 21B is a BB cross section of FIG. 21C, and FIG. 21D is FIG. 21C. It becomes a DD cross section.

  As shown in FIG. 21, the slide type operating device 30 </ b> C has a rectangular operation in which a magnet member 36 is disposed laterally (sliding direction) at the center of the lower end in a rectangular slide hole 44 formed in the waterproof housing cover 20. The member 40 is slidably accommodated, and the cover member 42 is arranged so as to prevent the cover member 42 from being fitted and fixed to the opening of the slide hole 44. Note that CH1 to CH5 displayed on the cover member 42 correspond to the switching positions L1 to L5.

  The embodiment of FIG. 21 is characterized in that the magnetic detection unit 28 is provided in the waterproof housing cover 20 so as to face the N pole on the left side of the magnet member 36 provided in the operation member 40. Since the other structure is the same as that of the embodiment of FIG. 8, the same reference numerals are given and description thereof is omitted.

  In the present embodiment, since the magnetic detection unit 28 is disposed relative to the north pole of the magnet member 36 provided in the operation member 40, the depth of the slide hole 44 and the height of the operation member 40 are the same as those in the embodiment of FIG. The only difference is that it is larger.

  In the present embodiment, when the operation member 40 is slid leftward from the switching position L1 which is the initial position shown in the drawing and switched to the switching positions L2 to L5, the N pole of the magnet member 36 and the magnetic detection unit 28 The magnetic field strength decreases and the magnetic detection signal level decreases accordingly, and the control unit 60 shown in FIG. 5 controls the magnetic detection signal level at each of the switching positions L1 to L5. Is set in advance, and control is performed to select one of the channels CH1 to CH5 based on the determination of the switching position.

  The merit of this embodiment is that even if the magnet member 36 is slid by the operating member 40, the magnetic pole passing through the Hall element of the magnetism detection unit 28 is always the N pole of the magnet member 36 relative to the magnetism detection unit 28. Since the direction is always perpendicular to the current direction and the magnetic vector is hardly inclined, a highly linear magnetic detection signal that decreases substantially linearly as the distance to the magnet member 36 increases is obtained. The switching position can be accurately determined by setting, and as a result, the number of switching positions can be easily increased.

[Modification of the present invention]
In the above embodiment, as a waterproof device provided with an operation device, a wireless waterproof sensor is taken as an example, but various settings can be made without touching an internal electric circuit by operating a setting member from the outside. The present invention can be applied as it is to an appropriate waterproof device that performs the above.

  Further, the rotary type and slide type operation devices shown in the above embodiments may be configured as a general-purpose switch device for instructing an operation by an external operation with respect to an electric circuit housed in a sealed housing. .

  The present invention includes appropriate modifications without impairing the object and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

10: Waterproof sensor 12: Cover 15: LED
16: Temperature detector 18: Waterproof housing body 20: Waterproof housing cover 24, 26: Circuit board 28: Magnetic detectors 30A, 30B, 30C: Operating device 31: Storage hole 32, 40: Operating members 32c, 40c: Positioning protrusions 35a to 35e, 46a to 46e: Positioning recesses 34, 42: Cover member 36: Magnet member 50: Ferromagnetic material 51: Diamagnetic material 60: Control unit 62: Communication unit 66: Sensor unit 68: Display unit 70: Battery power

Claims (10)

In an operating device provided in a device in which an electric circuit is arranged inside a housing,
An operation member disposed outside the housing and moving the magnet member to a plurality of switching positions;
A magnetic detection unit that is arranged inside the housing and outputs a magnetic detection signal corresponding to the magnetic strength of the magnet member that is moved by the operation member;
A control unit that outputs and controls a switching signal indicating a switching position of the operation member based on the magnetic detection signal output from the magnetic detection unit;
An operating device comprising:
2. The operating device according to claim 1, wherein the control unit displays a switching content by the operating member on a display unit when the electric circuit is controlled based on the switching signal. .
The operating device according to claim 1,
The magnetic detection unit outputs a magnetic detection signal of a level corresponding to the polarity and the magnetic strength according to the magnetic direction of the magnet member,
The controller is configured to output a switching signal indicating a switching position of the operation member based on a polarity and a level of the magnetic detection signal.
The operating device according to claim 1, wherein the operating member includes a positioning mechanism that holds a switching position when the operating member moves to the plurality of switching positions.
2. The operating device according to claim 1, wherein the operating member rotates the magnet member to move to a plurality of switching positions.
In the operating device according to claim 5,
The magnet member is rod-shaped, and the operation member is rotatably arranged by a rotation axis orthogonal to a magnetic field line passing through the magnetic pole surfaces at both ends of the magnet member.
The magnetic detection unit is arranged at a predetermined position outside the magnetic pole surface rotation position on the rotation surface of the magnet member,
The control unit sets a rotation range of 180 ° from the initial position where one magnetic pole surface of the magnet member is opposed to the magnetic detection unit to the other magnetic pole surface of the magnet member is opposed to the magnetic detection unit. An operating device, wherein a switching signal indicating a plurality of switching positions for each predetermined angle is output to the electric circuit for control.
In the operating device according to claim 5,
The magnet member is rod-shaped, and the operation member is rotatably arranged by a rotation axis orthogonal to a magnetic force line passing through the magnetic pole surfaces at both ends of the magnet part, and on the rotation surface of the magnet member by the rotation axis. A magnetic body that rotates integrally with the magnet member is disposed at a predetermined position perpendicular to the magnetic field lines passing through the magnetic pole surfaces at both ends,
The magnetic detection unit is arranged at a predetermined position outside the magnetic pole surface rotation position on the rotation surface of the magnet member,
The control unit is not affected by the 180 ° magnetic material from the initial position where one magnetic pole surface of the magnet member faces the magnetic detection unit until the other magnetic pole surface faces the magnetic detection unit. A switching signal indicating a plurality of switching positions for each predetermined angle set in one rotation range and a predetermined level different from the switching signal in the first setting range set in the second rotation range affected by the remaining 180 ° of the magnetic body. An operating device that controls each switching signal indicating a plurality of switching positions of an angle by outputting the switching signals to the electric circuit.
In the operating device according to claim 5,
The magnet member is rod-shaped, and the operation member is rotatably arranged by a rotation axis orthogonal to a magnetic force line passing through the magnetic pole surfaces at both ends of the magnet part, and on the rotation surface of the magnet member by the rotation axis. A ferromagnetic body and a diamagnetic body that rotate together with the magnet member at a predetermined position perpendicular to the magnetic field lines that pass through the magnetic pole surfaces at both ends, are disposed relative to each other with a rotation axis therebetween.
The magnetic detection unit is arranged at a predetermined position outside the magnetic pole surface rotation position on the rotation surface of the magnet member,
The control unit is affected by the diamagnetic material at 180 ° from the initial position where one magnetic pole surface of the magnet member is opposed to the magnetic detection unit to the other magnetic pole surface is opposed to the magnetic detection unit. The switching signal indicating a plurality of switching positions for each predetermined angle set in one rotation range and the switching signal of the first setting range set in the second rotation range affected by the remaining 180 ° of the ferromagnetic material are different in level. An operating device that outputs and controls each of switching signals indicating a plurality of switching positions at a predetermined angle to the electric circuit.
In the operating device according to claim 5,
The magnet member is rod-shaped, and the previous operation member is rotatably arranged by a rotation axis orthogonal to a magnetic field line passing through the magnetic pole surfaces at both ends of the magnet member.
The magnetic detection unit is arranged at two different predetermined positions outside the magnetic pole surface rotation position on the rotation surface of the magnet member,
The control unit outputs to the electric circuit a switching signal indicating a plurality of switching positions by a combination of different detection signals of the magnetic detectors arranged at the two positions for each predetermined angle in one rotation of the magnet member. An operating device characterized by:
  2. The operating device according to claim 1, wherein the operating member slides the magnet member to move to a plurality of switching positions.

Images