JP4337922B2 - Fall detection device - Google Patents

Description

  The present invention relates to a fall detection device that detects a fall state of a device such as an electric product.

  In recent years, many general-use electrical products that handle liquids have been commercialized, such as water-related devices such as humidifiers and dehumidifiers, and devices that use liquid fuel such as petroleum fan heaters. In most cases, there are cases in which it is usually portable and not fixedly installed, so it may fall over due to carelessness in use or an external force such as an earthquake. If the device falls, the liquid to be handled may leak, and if the liquid to be handled leaks, if the device is energized and in operation, the electrical circuit may fail or ignite due to the liquid leaking into the device. If it leaks to the outside of the equipment, it may cause damage to the floor or furniture, or cause a fire. Safety measures to stop are important.

  Conventionally, as a method of detecting the falling state of this type of device, based on information on an angle detected by an inclination switch that detects the inclination of the device more than a certain degree in a switch manner or an inclination sensor that detects details of the inclination angle of the device. In general, a method for determining a fall is known (see, for example, Patent Document 1).

  The tilt switch will be described below with reference to FIG.

  A cylindrical recess 103 is provided at the tip of a substantially conical recess 102 inside the case 101 that forms the base of the tilt switch body, and a sphere 104 larger than the opening diameter of the cylindrical recess 103 is placed thereon, The sphere 104 is covered with a cover 105 so that the sphere 104 can freely roll on the substantially conical recess 102 from above, and a photo sensor 106 is provided on the bottom of the cylindrical recess 103. Here, the photosensor 106 is of a reflective type that projects light onto the object and detects the presence or absence of the object based on the presence or absence of reflection of light from the object. When the tilt switch of the embodiment configured in this manner is horizontal, the sphere 104 rolls into the depression 103 on the cylinder, and the photo sensor 106 detects that the reflected light from the sphere 104 is large, thereby indicating that it is horizontal. In the case of tilting, the sphere 104 rolls in the tilt direction from the depression 103 on the cylinder, and the photosensor 106 has little reflected light from the sphere 104 or cannot receive the reflected light. Since it becomes impossible to detect the state, the judgment of falling is carried out in this state. It should be noted that instead of the photo sensor 106, a general contact-type switch that is closed by the weight of the sphere 104 is used, so that a configuration in which inclination detection is determined based on the opening of the switch, or the sphere 104 is magnetized. A configuration is also shown in which a magnetic sensor that detects the approach of magnetism is used as the magnetic material to detect the inclination based on the presence or absence of magnetic detection of the magnetic sensor (see, for example, Patent Document 2). ).

  Hereinafter, the inclination sensor will be described with reference to FIG.

A bottomed cylindrical upper case body 111 and a lower case body 112 that form the upper and lower sides of the support body at the base of the tilt sensor body, and a joint between the opening edges of the upper case body 111 and the lower case body 112 is spherical. A curved spherical plate 113 is provided with the periphery thereof sandwiched, and a concave spherical surface 112 a is formed on the inner surface of the bottom wall of the lower case body 112, and is formed on the lower case body 112 in the lower surface direction of the spherical plate 113. A convex spherical surface 113a is formed so as to face the concave spherical surface 112a. The concave spherical surface 112a and the convex spherical surface 113a have the same center, and the radial distance between the opposing surfaces extends over the entire surface. The vacant chamber 117a is formed as a constant. The vacant chamber 117a contains a permanent magnet 114, and the vacant chamber 117b formed by the upper surface of the spherical plate 113 and the inner surface of the upper case body 111 has at least three Hall elements 115 for detecting magnetism, In addition, a control circuit 116 for determining the inclination state from the magnetic detection state of each Hall element 115 is provided. Here, the permanent magnet 114 is formed to be slightly thinner than the gap between the vacant chamber 117a formed by the convex spherical surface 113a and the concave spherical surface 112a, and the edge portion thereof is formed into an arc shape over the entire circumference. Thus, the inside of the vacant chamber 117a is formed so as to be able to slide smoothly in a state where vertical movement is prevented, and further, the lubricating oil 118 is enclosed so as to give an appropriate resistance to the movement of the permanent magnet 114. The configuration was such that the wobbling of the permanent magnet 114 due to vibration was suppressed and stable tilt detection was possible.
Japanese Utility Model Publication No. 04-112436 Japanese Patent Laid-Open No. 08-261758

  In such a conventional tilt switch, a reflection type photosensor in which a sphere 104 larger than the opening diameter of the cylindrical depression 103 is placed on the cylindrical depression 103 and arranged on the bottom of the cylindrical depression 103. 106, the presence or absence of the sphere 104 is detected based on the presence or absence of light reflection, and the determination of the inclination or the fall is made based on the detection result. There is a problem in that it is easy to jump over the hollow 103 on the cylinder due to an impact from the outside other than the above, and erroneous detection is likely to occur with respect to vibration from the outside.

  Further, when the main element for tilt detection is the reflection type photosensor 106, the sphere 104 is present in the depression 103 on the cylinder by receiving the reflection of the projected light on the sphere surface of the sphere 104. In this case, since it is fundamental to determine that the vehicle is not tilted or overturned, the surface of the spherical body 104, which is a movable part, is oxidized or dust is attached during long-term use. As the physical deterioration of the light beam progresses, the amount of reflected light is reduced, and it may be possible to detect the presence of the sphere 104 in the depression 103 on the cylinder when it falls below the light receiving sensitivity of the photosensor 106, Therefore, there is a problem that there is a concern that a stable fall state cannot be determined during long-term use.

  In addition, when a contact-type switch is used as the main element for tilt detection, the contactability of the contact must be considered. The weight of the sphere 104 is increased in order to be able to determine whether or not the sphere 104 is present in the depression 103 on the cylinder against the spring force of the contact contact holding. For this purpose, the sphere 104 itself has to be enlarged. Therefore, in order to realize the fall detection function by this method, there is a problem that the entire configuration of the tilt switch is increased.

  In addition, when the main element for tilt detection is a magnetic sensor, the magnetic sensor usually detects the presence or absence of magnetic flux from one direction defined by the specifications with respect to the sensor element surface, such as a Hall element. On the other hand, when the sphere 104 is composed of a magnetized magnetic material, the magnetic flux on the surface is polarized on both sides on one axis passing through the center of the sphere to generate one direction of N and S poles. Since the direction of the magnetic flux from the sphere 104 with respect to the magnetic sensor is in an arbitrary state and cannot be defined in the state where the sphere 104 rolled into the columnar depression 103, is the sphere 104 present at the position of the columnar depression 103? Because there is a technical defect that cannot be accurately determined by detecting the magnetic flux of the sphere 104 with a magnetic sensor, in this method, stable fall detection is possible. But there is a problem that can not be provided.

  Furthermore, the case 101 and the photo sensor 106, which are structurally the basis of the body of the tilt switch, are integrated into a sphere 104, covered with a cover 105, and configured as a single part. Even if the photosensor 106, which is an individual element, is normal, the tilt switch does not function as a tilt switch due to a physical abnormality such as the progress of the surface deterioration of the sphere 104, which is a movable part, or the sticking to the cylindrical depression 103. As a result, it is necessary to replace one part as a whole.

  Further, in the conventional tilt sensor, the edge portion is slightly thinner than the gap dimension between the vacant chamber 117a formed by the convex spherical surface 113a and the concave spherical surface 112a on the lower surface of the spherical plate 113, and the edge portion is a circle over the entire circumference. An arc-shaped permanent magnet 114 is arranged on the surface of the concave spherical surface 112a, and when the inclination occurs, the permanent magnet 114 slides on the surface of the concave spherical surface 112a and moves to the empty chamber 117b above the spherical plate 113. In order to detect the state of inclination by detecting with a plurality of Hall elements 115 that detect the magnetism provided, even if the lubricating oil 118 is sealed in the empty chamber 117a, the gap between the empty chamber 117a of the permanent magnet 114 Surface contact resistance between the permanent magnet 114 and the concave spherical surface 112a and the surface tension of the lubricating oil 118 even if the slidability is improved in the state where the vertical movement is prevented in the inside Since a drag force based on the viscosity is generated, it is necessary to increase the weight of the permanent magnet 114 in order to ensure the ease of movement of the permanent magnet 114 against the drag when the fall occurs. In order to ensure this, the size of the permanent magnet 114 must be increased, and as a result, the overall configuration of the tilt sensor also increases in this method.

  Further, since the upper case body 111 and the lower case body 112 that are structurally formed above and below the support of the tilt sensor are integrated, and the permanent magnet 114 and the hall element 115 are built in as a single component, Even if the Hall element 115, which is an individual element, is normal, the permanent magnet 114, which is a movable part, is physically attached to the vacant chamber 117b due to oxidative deterioration of the surface or the lubricating oil 118. Even when the tilt sensor does not function due to an abnormality, it is necessary to replace the entire part of the tilt sensor even in this method, and there is a problem of lack of maintainability.

  The present invention solves such a conventional problem, and a fall detection device that can detect a fall state more stably by adopting a configuration in which erroneous detection is less likely to occur due to external vibration or the like. It is intended to provide.

  Also, to provide a fall detection device that can be mounted on devices of various sizes that require a fall detection function in accordance with the specifications of the product to be mounted, by making the overall structure of the device more compact. It is an object.

  Moreover, it aims at providing the fall detection apparatus which can always detect the stable fall state by eliminating the technical subject as a fall detection apparatus.

  In addition, even if the function is lost due to physical deterioration of the movable part in long-term use, the fall detection function can be restored by adopting a configuration in which only the deteriorated movable part can be replaced without replacing the entire device. An object of the present invention is to provide a fall detection device with improved maintainability.

  In order to achieve the above object, the fall detection device of the present invention is a flat circuit board that is built in a device and is disposed substantially horizontally and perpendicular to the direction of gravity, and a circuit that is disposed on the lower surface side of the circuit board. Magnetic flux detecting means for detecting the presence or absence of a magnetic flux in a specified range perpendicular to the plane of the substrate, a concave container having a funnel-shaped space disposed in the center on the upper surface side of the circuit board, and the concave container A magnetic flux element that is freely movably disposed inside the funnel-shaped depression, and in the state where the magnetic flux element is placed inside the concave container, the funnel-shaped depression space is covered and attached to the circuit board. A magnetic flux that can be detected by the magnetic flux detection means that is in a quasi-elliptical sphere shape with a circular top view and collapsed in the gravitational direction in a stable state on a horizontal plane. Magnetized to have The bottom container has a diameter slightly larger than the diameter of the top view of the magnetic flux so that the magnetic flux falls in the lowest center of the funnel-shaped space of the concave container. The formed second concave depression is provided so that the center of the second concave depression and the center of the magnetic flux detection range of the magnetic flux detection means are aligned on a vertical axis.

  By this means, in a stable state in which the device is not in a fallen state, the lowest of the concave container having a funnel-like recessed space arranged by covering the upper surface side of the circuit board arranged substantially horizontally with a container lid. The same direction as the gravitational direction of the magnetized magnetic element of the quasi-elliptical sphere shape that is freely arranged in a state of falling into the second concave depression portion formed in the portion and collapsed in the gravitational direction in a stable state on the horizontal plane This magnetic flux can be detected in a non-contact manner by magnetic flux detection means arranged on the lower surface side of the circuit board.

  In addition, a concave container in which a magnetic flux element is disposed inside a funnel-shaped depression is fixed to a circuit board on which a magnetic flux detection means is disposed with a container lid so as to be freely engageable.

  By this means, the concave container can be detachably attached to the circuit board on which the magnetic flux detection means is arranged by the container lid.

  Further, the magnetic flux detecting means can detect the presence or absence of both magnetic fluxes of N pole and S pole.

  By this means, the magnetic flux detection means can detect the presence or absence of magnetic fluxes in both the N and S poles.

  Further, the magnetic flux detecting means is arranged on the circuit board in a state where two or more devices capable of detecting the presence or absence of each magnetic flux of N pole or S pole are brought close to each other.

  By this means, the magnetic flux detection means can detect the presence or absence of magnetic fluxes in both the N and S poles.

  Further, the magnetic flux detecting means can detect the presence or absence of each single magnetic flux of the N pole or the S pole, and the magnetic flux can be detected in a stable state without a falling state in which a magnetic element is freely arranged inside the funnel-shaped depression of the concave container. The magnetic flux can be moved relative to the container lid by hanging it from the center of the container lid with the shortest length that does not reverse so that the magnetic flux of the magnetic flux always matches the magnetic pole direction of the magnetic flux that can be detected by the detection means. It is provided with a binding thread for binding.

  By this means, in a stable state where the magnetic flux element is freely arranged inside the funnel-shaped depression of the concave container, the container is arranged so that the magnetic pole direction of the magnetic flux that can be detected by the magnetic flux detecting means and the magnetic flux of the magnetic flux element always coincide with each other. The magnetic flux element is movable and can be bound and arranged by a binding thread suspended from the center of the lid.

  In addition, the magnetic flux detecting means can detect the presence or absence of each single magnetic flux of N pole or S pole, and in a stable state where there is no overturned state in which the magnetic flux element is freely arranged inside the funnel-shaped depression of the concave container. According to the magnetic pole direction of the magnetic flux that can be detected by the magnetic flux detecting means, the magnetic flux element is configured so that the magnetic flux elements have the same magnetic pole in both the vertical direction and the vertical direction in a steady arrangement state.

  By this means, the magnetic flux detecting means can detect the magnetic flux possessed by the magnetic flux element even if the magnetic flux element freely arranged inside the funnel-shaped depression of the concave container is reversed in a stable state without being overturned. .

  In addition, a braking liquid for restricting the movement of the magnetic flux element is housed in a sealed state by a container lid inside the funnel-shaped depression of the concave container.

  By this means, the magnetic flux element is covered with a container lid, and its movement is restricted by the braking liquid incorporated in a sealed state inside the funnel-shaped depression of the concave container.

  Further, the second concave recess portion of the concave container is arranged in such a manner that the magnetic flux detection means is arranged on the upper surface side of the circuit board and the magnetic flux detection means is sandwiched between the magnetic flux detection means and the circuit board. It is a configuration.

  By this means, the magnetic flux detection means arranged on the upper surface side of the circuit board can be arranged in a configuration sandwiched between the circuit boards by the second concave depression portion of the concave container.

  With respect to a flat circuit board that is built in the device and is inclined with respect to a horizontal plane that is perpendicular to the direction of gravity, the magnetic flux is applied to the second concave depression provided at the lowest central portion of the concave container. In this state, the magnetic flux in the vertical direction of the magnetic flux element in a state where the child is depressed is in a range that can be detected by the magnetic flux detection means.

  By this means, the magnetic flux detecting means detects the magnetic flux in the vertical direction of the magnetic flux element in a state where the magnetic flux element falls into the second concave concave portion provided at the lowest central portion of the concave container with the angle of the circuit board arranged at an inclination. In order to make the angle range possible, the circuit board is placed on the upper surface side of the circuit board in a stable state without falling even in the built-in equipment in a tilted arrangement with respect to the horizontal plane perpendicular to the direction of gravity. The magnetic flux possessed by the magnetized magnet in a state of falling into the second concave recess portion configured in the concave container to be arranged is arranged on the lower surface side of the circuit board and can be detected by the magnetic flux detection means.

  Moreover, it is set as the structure which covers the space hollowed in the funnel shape of the concave container as a cover by using a part of outer surface material which comprises the outline of the apparatus which incorporates a circuit board as a container cover part.

  By this means, the space recessed in the funnel shape of the concave container is covered and covered with the container lid part formed in a part of the outer surface material constituting the outer shell of the device incorporating the circuit board.

  Also, the concave container part is formed as a part of the outer surface material by directly denting the outer surface material that forms the outer surface of the device incorporating the circuit board, and the funnel of the concave container facing the outer surface side of this outer surface material The space recessed in a shape is changed to a container lid with a face material covering the outer surface, and the container is covered.

  By this means, the open space of the concave container part formed as a part of the outer surface material by directly denting the outer surface material forming the outer surface of the device incorporating the circuit board is a surface material in a form covering the outer surface of the container lid. It will be possible to change the lid.

  Further, a circuit board that is built in the device and is arranged substantially perpendicularly to the direction of gravity, a magnetic flux detection means that protrudes from one side of the circuit board and detects the presence or absence of a magnetic flux in a specified range in the direction of gravity, and A concave container having a space recessed in a funnel shape in the lower center direction disposed on the same surface of the circuit board on which the magnetic flux detection means is disposed, and freely movably disposed within the funnel-shaped depression of the concave container And a container lid for covering the space of the funnel-shaped depression and attaching it to the circuit board in a state where the magnetic flux element is placed inside the concave container, and the magnetic flux element is on a horizontal plane. In a stable state, the top view is circular and quasi-elliptical sphere crushed in the direction of gravity, and the magnetic flux detection means that is the same as the direction of gravity is magnetized and magnetized so as to have a detectable magnetic flux. The concave surface A second concave depression formed with a diameter slightly larger than the diameter of the top view of the magnetic flux so that the magnetic flux falls down is provided in the lowest central part of the space depressed in a funnel shape. The center of the second concave depression and the center of the magnetic flux detection range of the magnetic flux detection means are arranged on a vertical axis.

  By this means, in a stable state where the device is not in a fallen state, a concave container having a funnel-like recessed space disposed by covering with a container lid on one surface side of a circuit board disposed substantially vertically. Same as the gravitational direction of a quasi-elliptical sphere-shaped magnetic element collapsed in the gravitational direction in a stable state on a magnetized horizontal plane that is freely arranged in a state of falling into the second concave depression portion formed at the lowest part of The magnetic flux in the direction can be detected in a non-contact manner by the magnetic flux detection means arranged so as to protrude on the same surface where the concave container of the circuit board is arranged.

  Also, a circuit board that is built in the device and is arranged substantially perpendicularly to the direction of gravity, and a magnetic flux that is arranged on one side of the circuit board and detects the presence or absence of a magnetic flux in a specified range perpendicular to the plane of the circuit board A detecting unit; a concave container having a funnel-like space in a lower central direction disposed on the other surface side of the circuit board on which the magnetic flux detecting unit is disposed; and an inside of the funnel-shaped depression of the concave container And a container lid for covering the space of the funnel-shaped depression in the state where the magnetic flux element is put inside the concave container and attaching the lid to the circuit board, In the stable state on the horizontal plane, the magnetic flux child has a quasi-elliptical sphere shape with a circular top view and collapsed in the direction of gravity, and the same magnetic flux detection means can detect the entire direction of the horizontal plane perpendicular to the direction of gravity. With magnetic flux of magnetic pole In addition, the lowermost central portion of the funnel-shaped space of the concave container has a diameter slightly larger than the diameter of the top view of the magnetic flux so that the magnetic flux falls. The formed second concave depression is provided, and the center plane of the magnetic flux that is the same in all directions of the horizontal plane of the magnetic flux in the state in which the magnetic flux falls into the second concave depression is the magnetic flux detection. It arrange | positions so that it may overlap with the center of the magnetic flux detection range of a means.

  By this means, in a stable state where the device is not in a fallen state, a concave container having a funnel-like recessed space disposed by covering with a container lid on one surface side of a circuit board disposed substantially vertically. Magnetic flux detecting means possessed by a quasi-elliptical sphere-shaped magnetic element collapsed in the gravitational direction in a stable state on a magnetized horizontal plane that is freely arranged in a state of falling into a second concave depression formed at the lowest part of Magnetic flux of the same magnetic pole radiated in all directions on a horizontal plane perpendicular to the direction of gravity that can be detected is detected in a non-contact manner by magnetic flux detection means arranged on the other surface side where the concave container of the circuit board is arranged. Will be able to.

  According to the present invention, the second portion configured in the lowest portion of the concave container having a funnel-shaped space disposed on the upper surface side of the flat circuit board disposed substantially horizontally perpendicular to the direction of gravity. Arranging the concave part with the magnetic flux dropped into the concave part stabilizes the magnetic flux so that it is difficult to move against external vibrations, etc. As a crushed quasi-elliptical sphere shape, it is not easily rolled, so there is no need to increase the weight of the magnetic flux, making it smaller and lighter, and the same direction as the direction of gravity that the magnetic flux has in a stable state By detecting the magnetic flux in a non-contact manner with the magnetic flux detection means arranged on the lower surface side of the circuit board, it is a simple configuration that can be reduced in size, and it is more erroneously detected for external vibration. Non-contact detection It is possible to provide a fall detection device which is effective capable of performing long-term detection of the stable was fallen state by.

  Further, since the concave container is fixedly attached to the circuit board on which the magnetic flux detection means is disposed with the container lid, the concave container can be separated from the circuit board on which the magnetic flux detection means is arranged. In addition, it is possible to provide an overturn detection device excellent in serviceability that can replace only the peripheral configuration of the concave container, which is a mechanical component including a magnetic element, which is a movable component, when it is degraded or damaged.

  In addition, since the magnetic flux detection means can detect the presence or absence of both magnetic poles of the N pole and the S pole, it can detect the presence or absence of the magnetic flux regardless of the directionality of the magnetic pole. Thus, it is possible to provide a fall detection device capable of stably detecting a fall state even in a situation where the top and bottom of the magnetic flux element are reversed.

  Further, the magnetic flux detection means can detect the presence or absence of magnetic flux regardless of the directionality of the magnetic pole by arranging two or more devices that can detect the presence or absence of each magnetic flux of N pole or S pole on the circuit board. Thus, it is possible to provide a fall detection device capable of stably detecting a fall state even in a situation where the magnetic flux element is turned upside down in a stable state on a horizontal plane due to an external force at the time of fall.

  In addition, the magnetic flux element is freely arranged inside the funnel-shaped depression of the concave container and is movable so that the magnetic flux of the magnetic flux element always matches the magnetic pole direction of the magnetic flux that can be detected by the magnetic flux detection means in a stable state without falling over. By freely tying and arranging with a binding thread hanging from the center of the container lid, it is possible to detect the falling state stably even in the situation where the magnetic flux is turned upside down in a stable state on the horizontal plane due to the external force at the time of falling A fall detection device can be provided.

  Further, the magnetic flux detection means can detect the presence or absence of each single magnetic flux of N pole or S pole, and the magnetic flux detection means detects in a steady state in which a magnetic flux element is freely arranged inside the funnel-shaped depression of the concave container. The funnel of the concave container in a stable state where there is no overturning by configuring the magnetic flux so that the magnetic flux has the same magnetic flux in both the vertical direction in the vertical direction in a steady state in accordance with the magnetic flux direction of the possible magnetic flux The magnetic flux detection means can detect the magnetic flux that the magnetic flux element has even if the magnetic flux element that is freely arranged inside the hollow is reversed, so that the magnetic flux element moves up and down in a stable state on the horizontal plane due to the external force at the time of falling. It is possible to provide a fall detection device that can stably detect a fall state even in an inverted state.

  In addition, the damping liquid for limiting the movement of the magnetic fluxon is contained in the sealed state by the container lid inside the funnel-shaped depression of the concave container, so that the magnetic fluxon is inside the space recessed in the funnel shape of the concave container. The movement is restricted by the braking liquid, so that when the device is not in a fallen state, the magnetic flux inside the concave container is difficult to move due to the braking force of the braking liquid due to external vibration or the like. Since the magnetic flux element moves greatly regardless of the braking force of the braking liquid at the time of the fall, it is possible to provide a fall detection device that is unlikely to cause erroneous fall detection due to external vibration or the like and that can detect the fall state more stably.

  Further, the second concave recess portion of the concave container is arranged in such a manner that the magnetic flux detection means is arranged on the upper surface side of the circuit board and the magnetic flux detection means is sandwiched between the magnetic flux detection means and the circuit board. As a configuration, the magnetic flux detection means arranged on the upper surface side of the circuit board can be arranged between the circuit board by the second concave depression of the concave container, and thus the concave container and the magnetic flux detection means are directed upward of the circuit board. It is possible to provide a fall detection device that can be mounted by providing a fall detection function even for devices that can be arranged only on the same side.

  Further, in a device in which the built-in circuit board is inclined with respect to a horizontal plane perpendicular to the direction of gravity, the inclination angle of the circuit board is set in the second concave recess portion provided at the lowest central portion of the device concave container. The second concave recess portion configured in the concave container disposed on the upper surface side of the circuit board because the vertical magnetic flux of the magnetic flux element is in an angle range that can be detected by the magnetic flux detection means when the magnetic flux element is depressed. In a stable state where the device is not in an overturned state, the magnetic flux that has been magnetized in the state of falling into the state can be detected by the magnetic flux detection means placed on the lower surface side of the circuit board. Therefore, it is possible to provide a fall detection device that can be mounted on a device that is inclined with respect to a horizontal plane that is perpendicular to the horizontal plane.

  In addition, a part of the outer shell material that forms the outer shell of the device containing the circuit board can be used as a container lid to cover the funnel-shaped hollow space of the concave container, thus eliminating the need for the container lid and reducing the number of components. By doing so, it is possible to provide a fall detection device that can realize the fall detection function at a lower cost.

  In addition, a concave container part is formed as a part of the outer surface material by directly denting the outer surface material that forms the outer surface of the device incorporating the circuit board, and the open space is a surface material that covers the outer surface on the container lid. Since the cover is changed and the single component of the concave container is not required, and the number of constituent elements can be reduced, it is possible to provide a fall detection device that can realize fall detection at a lower cost.

  Further, a second concave recess portion formed in the lowest portion of the concave container having a funnel-like space disposed on one surface side of a flat circuit board that is built in the apparatus and disposed substantially perpendicularly to the direction of gravity. The magnet is placed in a state where the magnetic flux is dropped to stabilize it so that it is difficult to move against external vibrations, etc. By eliminating the need to increase the weight of the magnetic flux element, it is possible to reduce the size and weight of the magnetic circuit board.In addition, the magnetic flux in the same direction as the gravitational direction in the stable state of the magnetic flux element is applied to the circuit board. By adopting a configuration in which non-contact detection is performed by magnetic flux detection means arranged so as to protrude on the same surface where the concave container is arranged, even for a device having a configuration in which the circuit board is arranged substantially perpendicular to the direction of gravity. Miniaturization possible It is possible to provide a fall detection device having a configuration and having an effect of making it possible to detect a stable fall state stably for a long period of time by non-contact detection, since it is difficult to detect false detection even with respect to external vibration. it can.

  Further, a second concave recess portion formed in the lowest portion of the concave container having a funnel-like space disposed on one surface side of a flat circuit board that is built in the apparatus and disposed substantially perpendicularly to the direction of gravity. The magnet is placed in a state where the magnetic flux is dropped to stabilize it so that it is difficult to move against external vibrations, etc., and the magnetic flux is stable as a quasi-elliptical sphere with a circular top view and collapsed in the gravity direction in a stable state on the horizontal plane. By eliminating the need to increase the weight of the magnetic flux element, it is possible to reduce the size and weight of the magnetic flux element. Further, the magnetic flux detecting means having a stable magnetic flux element is perpendicular to the direction of gravity that can be detected. The circuit board is configured to detect the magnetic flux of the same magnetic pole radiated in all directions on the horizontal plane in a non-contact manner by the magnetic flux detection means disposed on the other surface side where the concave container of the circuit board is disposed. Is the same as the direction of gravity It is a simple configuration that can be miniaturized even for devices with a configuration arranged substantially vertically, and it is more difficult to detect false detections even from external vibrations. It is possible to provide a fall detection device having an effect that can stably detect a fall state.

  A flat circuit board that is built into the equipment and is arranged substantially horizontally, perpendicular to the direction of gravity, and the presence or absence of magnetic flux in a specified range perpendicular to the plane of the circuit board that is placed on the lower surface of the circuit board , A concave container having a funnel-like hollow at the center disposed on the upper surface side of the circuit board, and a free-moving arrangement within the funnel-shaped depression of the concave container. A magnet lid, and a container lid for covering the space of the funnel-shaped depression and attaching the lid to the circuit board in a state in which the magnetic flux element is placed inside the concave container, and the magnetic flux element is stable on a horizontal plane. In the state, it is a quasi-elliptical sphere shape that is circular in top view and crushed in the direction of gravity, and is magnetized and magnetized so as to have a magnetic flux that can be detected by the magnetic flux detection means that is the same as the direction of gravity. Funnel shape of the concave container A second concave recess portion formed with a diameter slightly larger than the diameter of the top view of the magnetic flux so that the magnetic flux falls is provided at the lowest central portion of the recessed space. And the center of the magnetic flux detection range of the magnetic flux detection means is arranged on the vertical axis, and is a second portion configured in the lowest part of the space recessed in the funnel shape of the concave container. The direction of gravity of the magnetic flux element in the state that the magnetic flux element that is freely arranged in the state of falling into the concave concave portion of the magnet falls under the influence of gravity and receives a force that is large enough to escape from the second concave concave portion. Since the same magnetic flux moves out of the detection direction of the magnetic flux detection means, as a result, the magnetic flux detection means can no longer detect the magnetic flux of the magnetic flux child, and it is possible to determine the fall when this magnetic flux cannot be detected. Magnetic flux detection means It is possible to detect in a non-contact manner, and since the magnetic fluxon is a quasi-elliptical sphere shape crushed in the direction of gravity in a stable state on a horizontal plane, it does not roll easily, and further falls into the second concave depression. It is a stable structure that is difficult to move against external vibration etc. in a state and can reduce the size and weight of the magnetic flux element. It is more difficult to detect erroneous detection, and has a function of detecting a stable fall state for a long time by non-contact detection.

  In addition, the concave container in which the magnetic flux element is disposed inside the funnel-shaped depression is structured to be slidably fixed to the circuit board on which the magnetic flux detection means is disposed by the container lid. It can be separated from the circuit board on which the means is arranged, and has an effect of excellent serviceability in which only the peripheral configuration of the concave container, which is a mechanical component including a magnetic element that is a movable component, can be replaced when it is deteriorated or damaged.

  The magnetic flux detecting means is configured to detect the presence or absence of both magnetic poles of N and S poles, and the magnetic flux is inverted upside down in the stable state on the horizontal plane due to the external force at the time of falling, and in the direction of gravity. Even in a situation where the magnetic pole direction of the same magnetic flux is reversed, it has an effect that the falling state can always be detected stably.

  Further, the magnetic flux detection means is arranged on the circuit board in a state where two or more devices capable of detecting the presence or absence of each magnetic flux of N pole or S pole are placed close to each other, and the presence or absence of the magnetic flux is detected regardless of the directionality of the magnetic pole. In order to be able to detect, the magnetic field is always stable even in the situation where the magnetic flux is reversed upside down in the stable state on the horizontal plane and the magnetic pole direction of the same magnetic flux is reversed in the direction of gravity due to the influence of external force at the time of falling. It has the effect that the fall state can be detected.

  Further, the magnetic flux detecting means can detect the presence or absence of each single magnetic flux of the N pole or the S pole, and the magnetic flux can be detected in a stable state without a falling state in which a magnetic element is freely arranged inside the funnel-shaped depression of the concave container. The magnetic flux can be moved relative to the container lid by hanging it from the center of the container lid with the shortest length that does not reverse so that the magnetic flux of the magnetic flux always matches the magnetic pole direction of the magnetic flux that can be detected by the detection means. It is equipped with a binding thread that binds, and it can always detect the falling state stably because the binding thread can prevent the magnetic flux element from turning upside down in a stable state on the horizontal plane due to the external force at the time of falling. It has the action.

  In addition, the magnetic flux detecting means can detect the presence or absence of each single magnetic flux of N pole or S pole, and in a stable state where there is no overturned state in which the magnetic flux element is freely arranged inside the funnel-shaped depression of the concave container. The magnetic flux detector is configured so that the magnetic flux detector has the same magnetic flux in both the vertical direction in the vertical direction in a steady arrangement state according to the magnetic pole direction of the magnetic flux that can be detected by the magnetic flux detection means, and is stable without being overturned. In this state, the magnetic flux detection means is configured to detect the magnetic flux of the magnetic flux element even if the magnetic flux element freely arranged inside the funnel-shaped depression of the concave container is reversed. Even in a situation where the magnetic flux element is turned upside down in a stable state on a horizontal plane, it has an effect that the falling state can always be detected stably.

  In addition, a braking liquid for restricting the movement of the magnetic fluxon is contained inside the funnel-shaped depression of the concave container in a sealed state by the container lid. Due to vibration etc., the magnetic flux inside the concave container becomes difficult to move due to the braking force of the braking liquid, and the magnetic flux moves greatly regardless of the braking force of the braking liquid at the time of actual fall. It has the effect of being able to detect a fall state more stably, with less occurrence of false fall detection.

  Further, the magnetic flux detection means is arranged on the upper surface side of the circuit board, and the second concave depression of the concave container is arranged in such a manner that the magnetic flux detection means is sandwiched between the magnetic flux detection means and the circuit board on the upper side of the magnetic flux detection means. Thus, the concave container and the magnetic flux detection means can be mounted on a device having a configuration in which the concave surface container and the magnetic flux detection means can be arranged only on the same surface on the upper side of the circuit board.

  In addition, a second concave recess portion in which the inclination angle is provided at the lowest central portion of the concave container with respect to a flat circuit board which is built in the device and is inclined with respect to a horizontal plane perpendicular to the direction of gravity. In a device with a configuration in which the magnetic flux in the vertical direction of the magnetic flux element is in a range that can be detected by the magnetic flux detection means and the circuit board is inclined with respect to the vertical plane with respect to the direction of gravity. On the other hand, it has an effect that it can be mounted and can detect a fall.

  In addition, a part of the outer surface material that forms the outer shell of the device incorporating the circuit board is used as a lid to cover the space recessed in the funnel shape of the concave container as a container lid. By reducing the number of components by eliminating the need for a single component, the fall detection function can be realized at a lower cost.

  Also, the concave container part is formed as a part of the outer surface material by directly denting the outer surface material that forms the outer surface of the device incorporating the circuit board, and the funnel of the concave container facing the outer surface side of this outer surface material The space that has been recessed is changed to a container lid with a face material that covers the outer surface of the container, and the container is covered. It has the effect that it can realize the fall detection at.

  Further, a circuit board that is built in the device and is arranged substantially perpendicularly to the direction of gravity, a magnetic flux detection means that protrudes from one side of the circuit board and detects the presence or absence of a magnetic flux in a specified range in the direction of gravity, and A concave container having a space recessed in a funnel shape in the lower center direction disposed on the same surface of the circuit board on which the magnetic flux detection means is disposed, and freely movably disposed within the funnel-shaped depression of the concave container And a container lid for covering the space of the funnel-shaped depression and attaching it to the circuit board in a state where the magnetic flux element is placed inside the concave container, and the magnetic flux element is on a horizontal plane. In a stable state, the top view is circular and quasi-elliptical sphere crushed in the direction of gravity, and the magnetic flux detection means that is the same as the direction of gravity is magnetized and magnetized so as to have a detectable magnetic flux. The concave surface A second concave depression formed with a diameter slightly larger than the diameter of the top view of the magnetic flux so that the magnetic flux falls down is provided in the lowest central part of the space depressed in a funnel shape. The center of the second concave depression and the center of the magnetic flux detection range of the magnetic flux detection means are arranged on the vertical axis, and is configured as the lowest part in the funnel-shaped space of the concave container. The magnetic flux element has a magnetic flux element in a state where a device that receives a large force to the extent that the magnetic flux element that is freely arranged in the state of falling into the second concave depression is affected by gravity and is released from the second concave depression. The magnetic flux that is the same as the direction of gravity moves outside the detection direction of the magnetic flux detection means. As a result, the magnetic flux detection means can no longer detect the magnetic flux of the magnetic flux element, and it is possible to determine the fall when this magnetic flux cannot be detected. In addition, magnetic flux detection of the fall state It is possible to detect in a non-contact manner on the stage, and since the magnetic fluxon has a quasi-elliptical sphere shape crushed in the direction of gravity in a stable state on a horizontal plane, it does not roll easily, and the second concave depression Equipment that has a structure in which the circuit board is arranged substantially perpendicular to the direction of gravity so that the magnetic flux can be reduced in size and weight because it is difficult to move against external vibration etc. It is a simple configuration that can be downsized, and it is more difficult to detect false detections even from external vibrations, and non-contact detection can detect a stable fall state over the long term. Has an effect.

  Also, a circuit board that is built in the device and is arranged substantially perpendicularly to the direction of gravity, and a magnetic flux that is arranged on one side of the circuit board and detects the presence or absence of a magnetic flux in a specified range perpendicular to the plane of the circuit board A detecting unit; a concave container having a funnel-like space in a lower central direction disposed on the other surface side of the circuit board on which the magnetic flux detecting unit is disposed; and an inside of the funnel-shaped depression of the concave container And a container lid for covering the space of the funnel-shaped depression in the state where the magnetic flux element is put inside the concave container and attaching the lid to the circuit board, In the stable state on the horizontal plane, the magnetic flux child has a quasi-elliptical sphere shape with a circular top view and collapsed in the direction of gravity, and the same magnetic flux detection means can detect the entire direction of the horizontal plane perpendicular to the direction of gravity. With magnetic flux of magnetic pole In addition, the lowermost central portion of the funnel-shaped space of the concave container has a diameter slightly larger than the diameter of the top view of the magnetic flux so that the magnetic flux falls. The formed second concave depression is provided, and the center plane of the magnetic flux that is the same in all directions of the horizontal plane of the magnetic flux in the state in which the magnetic flux falls into the second concave depression is the magnetic flux detection. The magnetic flux element is arranged so as to overlap with the center of the magnetic flux detection range of the means, and is freely arranged in a state where it falls into the second concave hollow portion formed at the lowest portion in the funnel-shaped space of the concave container. Magnetic flux of the same magnetic pole radiated in all directions on the horizontal plane perpendicular to the direction of gravity of the magnetic flux in the state that the device that receives a force large enough to escape from the second concave depression due to the influence of gravity falls. Is the detection direction of the magnetic flux detection means As a result, the magnetic flux detection means cannot detect the magnetic flux of the magnetic flux child, and it is possible to determine the fall when the magnetic flux cannot be detected. In addition, since the magnetic fluxon has a quasi-elliptical sphere shape that is crushed in the direction of gravity in a stable state on a horizontal plane, it does not roll easily, and further it vibrates externally when it falls into the second concave recess. Because it is a stable structure that is difficult to move with respect to the magnetic field, and the magnetic flux element can be reduced in size and weight, it is also possible to reduce the size of equipment with a configuration in which the circuit board is arranged substantially perpendicular to the direction of gravity. It has a simple configuration, and it is more difficult to detect erroneous detection even with respect to external vibration, and has an effect of stably detecting a falling state for a long time by non-contact detection.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
1 to 4 show a configuration diagram of the fall detection device according to the first embodiment of the present invention. Here, FIG. 1A is a side sectional view showing the configuration of the present fall detection device, FIG. 1B is a partially enlarged sectional view of a second concave depression in the configuration, and FIG. 2A is the same configuration. FIG. 2B is a side view of the magnetic flux element used for the same configuration, FIG. 3 is a perspective transparent view showing the same configuration, and FIG. 4 is a perspective transparent view showing the assembled state. As shown in the figure, as shown in the figure, magnetic flux detection for detecting the presence or absence of magnetic flux on the lower surface side of a flat circuit board 1 that is built in a device to be mounted and disposed substantially horizontally and perpendicular to the direction of gravity. The means 2 is arranged, and the center of the magnetic flux detection means 2 in the center direction is aligned with the center of the vertical axis of the magnetic flux detection range of the magnetic flux detection means 2 on the upper surface side of the circuit board 1 in the magnetic flux detection direction. A concave container 3 having a funnel-shaped depression is arranged, and the inside of the funnel-shaped depression of the concave container 3 is possible. In this state, the magnetic flux element 4 is freely arranged, and a second concave recess portion 5 formed so that the magnetic flux element 4 falls into the lowest central portion of the concave container 3 is provided. A container lid 6 is provided for fixing to the circuit board 1 in a state of covering the entire open space of the funnel-shaped depression of the concave container 3 with the magnetic flux element 4 inside.

  Here, it is assumed that the flat circuit board 1 is built in a device that is mounted in a substantially horizontal direction that is perpendicular to the direction of gravity. It indicates that the surface has an inclination of about 0 ° ± 5 °, and in the following description, detailed description of the same description is omitted.

  Here, the magnetic flux detection means 2 detects the presence or absence of magnetic flux in a non-contact manner, and is a general surface mount that detects the presence or absence of a magnetic flux density of about 5 mT in a specified range in one direction and changes it to an electric signal state. Is formed by using a fixed Hall IC 7, soldered to a fixed position fixed by a circuit pattern land on the lower surface side of the circuit board 1, and perpendicular to the plane of the circuit board 1. One that can detect the presence or absence of magnetic flux in the direction is selected and used. In the figure, the outline of the magnetic flux detection direction of the magnetic flux detection means 2 is shown in the shaded area.

  The Hall IC 7 has a Hall effect that a voltage is generated in a direction perpendicular to the current direction and the magnetic field direction when a current is applied to the solid (semiconductor thin film) element and a magnetic flux perpendicular to the surface of the solid element is applied. The integrated circuit component is configured based on this, and when receiving a magnetic field exceeding the magnetic flux density defined from the vertical direction with respect to the surface of the solid-state element having a Hall effect incorporated in the IC, a voltage signal is output as a magnetic flux detection result. It is configured to output.

  Here, as shown in FIG. 2, the magnetic flux element 4 is a quasi-elliptical sphere that is circular when viewed from above in a stable state on a horizontal surface and is elliptical when collapsed in the direction of gravity when viewed from the side. As shown in FIG. 1A, in a stable state that is not in a free-falling state, the magnetic flux has the same magnetic flux as that in the direction of gravity as shown in FIG. For example, a ferrite magnet that is excellent in corrosion resistance and has a large coercive force and is difficult to demagnetize is optimal, and is formed into a quasi-elliptical sphere shape. After sintering, the magnet is magnetized in the required direction by the magnetic flux of the electromagnet. The magnetic flux element 4 may be a chamfered low-profile columnar shape, but the magnetic flux direction magnetized so as to be the same magnetic flux as the gravity direction in a stable state on a horizontal plane is stable without tilting to the vertical axis, Moreover, in order to make it easier to move when a fall occurs, the ground contact portion with the second concave recess portion 5 is dotted and the frictional force with the arrangement contact surface is minimized as shown in the partial enlarged view of FIG. A quasi-elliptical shape is more optimal. In addition, the magnetic flux element 4 has a magnetic flux that the Hall IC 7 that constitutes the magnetic flux detection means 2 has through the distance based on the thickness obtained by adding the constituent materials of the second concave recess portion 5 and the circuit board 1 of this embodiment. Therefore, in the actual design, the material constituting the magnetic flux element 4 is selected so that the magnetic flux intensity necessary for this detection can be realized, and the magnetization energy is reduced. While adjusting, it is made by miniaturizing to the minimum size in consideration of the mobility of the magnetic flux element 4. For example, when a ferrite magnet is used as a material, the circular diameter when viewed from above is set. The magnetic field has a magnetic flux density of 10 mT to 100 mT in accordance with the detected magnetic flux density defined by the Hall IC 7 that uses the dimension in the height direction when viewed from the side direction of 3 mm to 5 mm as the size of 2 mm to 3 mm. It is intended to.

  Here, the concave container 3 and the container lid 6 are optimally formed of a material that does not magnetically affect the magnetic flux of the magnetic flux element 4 and the magnetic flux detected by the magnetic flux detection means 2, for example, ABS, PBT, etc. The resin material is molded and configured.

  Here, the second concave depression 5 has a slightly larger diameter of about 1 mm to 2 mm with respect to the diameter of the top view of the magnetic flux element 4, and most of the height direction in the side view of the magnetic flux element 4. In accordance with the tilt angle of the device to be detected, the magnetic flux element 4 exceeds the end surface of the second concave recess portion at a tilt angle equal to or greater than the detection target angle. The depression depth is determined in accordance with the specifications of the fall detection and the size of the magnetic flux element 4 so as to slide out. In addition, the inner wall of the dent following the bottom surface from the wall surface of the second concave dent portion 5 is stably held without falling over, and the magnetic flux element 4 naturally slides on the central portion of the second concave dent portion 5 and is stably held. In addition, the portion where the inner wall and the magnetic flux element 4 are in contact with each other has the optimum point contact shape in which the frictional force is minimized so as not to prevent the movement of the magnetic flux element 4 as much as possible. The curved surface is a hemispherical surface or a semi-elliptical spherical surface having a curvature larger than the bottom surface curvature of the magnetic flux element 4 with the center of the hollow portion as the lowest position.

  Here, the inner wall surface connected to the second concave dent portion 5 in the open space of the concave container 3 has a slope enough to guide the magnetic flux element 4 to the second concave dent portion 5 and slide it down in a stable state where the device is not in a fallen state. It is necessary to set a smooth shape that makes contact at a point where the frictional force is the lowest so that the movement of the magnetic flux element 4 is not hindered as much as possible in the part where the magnetic flux element 4 contacts with an angle. The funnel shape is optimal, but it may be a hemispherical surface or a semi-elliptical spherical curved surface having a larger curvature than the inner wall of the second concave recessed portion 5.

  The container lid 6 covers and seals the funnel-shaped space of the concave container 3, and has two or more claw portions 8 at the end of the container lid 6 that contacts the circuit board 1. 3. A claw for allowing the container lid 6 to be attached to the circuit board 1 by inserting the claw part 8 into a position opposite to the claw part 8 provided on the container lid 6 at a place on the circuit board 1 where 3 is disposed. A hole 9 is provided.

  With the above configuration, the second concave depression 5 is formed on the upper surface side of the circuit board 1 in which the magnetic flux detection means 2 is disposed on the lower surface side which is built in the device to be mounted and is arranged substantially horizontally with respect to the vertical surface with respect to the direction of gravity. In a state where the concave container 3 in which the magnetic flux element 4 is freely arranged is covered with the container lid 6, the claw portion 8 of the container lid 6 is inserted into the claw hole 9 of the opposite circuit board 1 to be fixed to the circuit board 1. In a stable state where the mounted device is not in a fall state, the magnetic flux detection means 2 is arranged on the lower surface side of the circuit board 1 so that the magnetic flux in the same direction as the gravity direction of the magnetic flux element 4 is provided. It can be detected in a non-contact manner.

  Next, how the fall detection device configured as described above detects the fall state of the device will be described with reference to FIG.

  FIG. 5 is a side sectional view showing a state in which the mounted device falls in the right direction in the figure, but the extent that the magnetic flux element 4 slides off from the second concave depression 5 due to the influence of gravity. In the fall state of the angle, the same magnetic flux as the direction of gravity of the magnetic flux element 4 moves out of the range of the magnetic flux detection means 2, and as a result, the magnetic flux detection means 2 cannot detect the magnetic flux of the magnetic flux element 4. Thus, the fall detection function can be realized by determining the fall in a state where the magnetic flux is not detected.

  6 shows an enlarged configuration diagram of a cross-sectional side view of the container lid claw portion according to the first embodiment. As shown in FIG. 6, two or more portions provided on the end portion of the container lid 6 that contacts the circuit board 1 are provided. In the state where the return portion 10 is provided in the outer peripheral direction of the claw portion 8, the claw portion 8 is inserted into the claw hole 9 provided on the opposing circuit board 1, and the container lid 6 is attached to the circuit board 1. It can also be configured such that the eight return portions 10 protrude from the opposing claw holes 9 to the lower surface side of the circuit board 1 and hang on the ends of the claw holes 9 so that the container lid 6 cannot be easily removed from the circuit board 1. In this configuration, when it is necessary to remove the container lid 6 from the circuit board 1, the return portions 10 of the claw portions 8 hanging on the end portions of the claw holes 9 projecting to the lower surface side of the circuit board 1 are claw holes. The container lid 6 is removed by removing the claw part 8 from the claw hole 9 in a state where the claw part 8 is distorted so as to be disengaged from the end of 9.

  With the above configuration, the concave container 3 can be fixed to the circuit board 1 on which the magnetic flux detecting means 2 is disposed by the container lid 6 so that the concave container 3 can be engaged with the magnetic flux detecting means 2. The structure can be separated from the circuit board 1 arranged, and only the peripheral configuration of the concave container 3 that is a mechanism component including the magnetic flux element 4 that is a movable component can be replaced when it is deteriorated or damaged.

  FIG. 6 shows one configuration around the magnetic flux detection means in the first embodiment. As shown in FIG. 6, the magnetic flux detection means 2 is of a type that can detect the presence or absence of both N-pole and S-pole magnetic fluxes. It is also possible to use a surface mount type Hall IC 7a so that the presence or absence of magnetic flux can be detected regardless of the directionality of the magnetic pole. In this case, the magnetic flux element 4 is stabilized on the horizontal plane due to the external force at the time of falling. It is possible to stably detect the overturned state even in a situation where the vertical direction is reversed in the state and the magnetic pole direction of the same magnetic flux is reversed in the direction of gravity.

  FIG. 8 shows another configuration around the magnetic flux detection means in the first embodiment. As shown in FIG. 8, the magnetic flux detection means 2 is a kind of surface that can detect the presence or absence of each magnetic flux of N pole or S pole. It is also possible to have a configuration in which the presence or absence of magnetic flux can be detected regardless of the directionality of the magnetic pole by disposing the mounting type Hall ICs 7b and 7c on the circuit board 1 in a state where two or more of them are close to each other. Even in the configuration, the falling state can be stably detected even when the magnetic flux element 4 is turned upside down in a stable state on a horizontal plane due to the external force at the time of falling and the magnetic pole direction of the same magnetic flux is reversed in the direction of gravity. be able to.

  FIG. 9 shows another configuration around the magnetic flux detection means in the first embodiment. As shown in the figure, the magnetic flux detection means 2 can detect the presence or absence of each single magnetic flux of N pole or S pole. The magnetic flux detecting means 2 can be detected in a stable state provided with a binding thread 11 suspended from the center of the container lid 6 and the magnetic flux element 4 being freely disposed inside the funnel-shaped depression of the concave container 3 and not in a fallen state. It is possible to move the magnetic flux so that the magnetic flux of the magnetic flux element 4 always coincides with the magnetic pole direction of the magnetic flux.

  Here, the binding thread 11 is provided with holes for fixing the container lid 6 and the magnetic flux element 4, and both ends of the binding thread 11 are inserted into the holes, and an adhesive such as an epoxy resin having excellent durability is inserted into each hole. It is fixed by applying.

  Here, the binding yarn 11 is selected in consideration of environmental resistance that is flexible to the extent that the movement of the magnetic flux element 4 is not hindered and that does not cause deterioration such as disconnection while maintaining this flexibility for a long period of time. For example, a yarn obtained by twisting a plurality of fine yarns of nylon or carbon bone is used.

  Here, in the stable state where the magnetic flux element 4 falls into the inside of the funnel-shaped depression of the concave container 3 and is not in a falling state, the binding element 11 has a length of the binding element 11 from the apex of the magnetic flux element 4 to the central binding thread 11. The length is determined according to the distance to the fixed point, and in the actual design, the length is determined by giving a deflection that does not reverse the magnetic flux element 4.

  With the above configuration, the magnetic flux element 4 can be prevented from being inverted upside down in a stable state on the horizontal plane due to the external force at the time of the fall. Even in a situation where external force is applied so that the top and bottom are reversed in a stable state, the fall state is stabilized by correcting so that the magnetic flux of the magnetic flux element 4 always matches the magnetic pole direction of the magnetic flux that can be detected by the magnetic flux detection means 2. Can be detected automatically.

  FIG. 10 shows another configuration around the magnetic flux detection means in the first embodiment. As shown in FIG. 10A, the magnetic flux detection means 2 has the presence or absence of each single magnetic flux of N pole or S pole. The magnetic pole direction of the magnetic flux that can be detected by the magnetic flux detection means 2 in both the vertical direction and the vertical direction that is the same as the gravity direction in a steady arrangement state freely arranged in the funnel-shaped depression of the concave container 3 It is also possible to configure the magnetic flux element 4a so as to have the same magnetic flux. Here, the magnetic flux element 4a is also composed of a ferrite magnet, and as shown in FIG. 10B, the element piece 12 of a magnet formed into a shape obtained by equally dividing the shape of the quasi-elliptical sphere into two in the vertical direction. Is magnetized in accordance with the magnetic pole direction of the magnetic flux that can be detected by the magnetic flux detecting means 2 in the vertical direction in a regular arrangement state, and the two magnetized element pieces 12 are excellent in durability such as up and down, epoxy, etc. And bonded with an adhesive to form a quasi-elliptical sphere. (FIG. 10B shows a configuration in which an N-pole magnetic flux is generated in the vertical direction of the magnetic flux element 4a).

  With the above configuration, the direction of the magnetic flux of the magnetic flux element 4a is always the magnetic flux detection means 2 even if the magnetic flux element 4a that is freely arranged inside the funnel-shaped depression of the concave container 3 is reversed in a stable state without being overturned. Therefore, even in this configuration, the falling state is stably detected even in a situation where the magnetic flux element 4a receives an external force that is reversed upside down in a stable state on a horizontal plane. Can be.

(Embodiment 2)
FIG. 11: shows the side view sectional drawing and the partial expanded sectional view which show the structure of the fall detection apparatus in Embodiment 2 of this invention. In addition, the same thing as Embodiment 1 attaches | subjects the same symbol, and abbreviate | omits detailed description.

  As shown in the figure, a braking liquid 13 for limiting the movement of the magnetic flux element 4 may be provided inside the funnel-shaped depression of the concave container 3a, and the container lid 6a may be incorporated in a sealed state. Here, the braking liquid 13 is provided with groove portions 14a and 14b on the end surface portion of the open space of the concave container 3a and on the inner surface of the container lid 6a facing the end surface portion, and the O-ring 15 is provided between the groove portion 14a and the groove portion 14b. In this state, the container lid 6a is fixed to the circuit board 1 and sealed inside the concave container 3a. Here, the brake fluid 13 uses silicon oil having weather resistance for a long time.

  With the above configuration, the magnetic flux element 4 is restricted in movement by the braking liquid 13 inside the open space of the concave container 3a. Therefore, when the device is not in the overturned state, the magnetic flux element 4 receives vibrations from the outside and the like. The magnetic flux element 4 inside 3a becomes difficult to move due to the braking force of the braking liquid 13, and the magnetic flux element 4 moves greatly regardless of the braking force of the braking liquid 13 at the time of actual fall. Therefore, it is possible to detect a more stable fall state in which the occurrence of the above is difficult.

(Embodiment 3)
FIG. 12 is a configuration diagram of the fall detection device according to the third embodiment of the present invention. In addition, the same thing as Embodiment 1 attaches | subjects the same symbol, and abbreviate | omits detailed description.

  As shown in the figure, the magnetic flux detection means 2 is arranged on the upper surface side of the circuit board 1 and is concave in a form in which the magnetic flux detection means 2 is sandwiched between the magnetic flux detection means 2 and the circuit board 1. It is set as the structure by which the 2nd concave surface recessed part 5 of the container 3b is arrange | positioned.

  With the above configuration, the magnetic flux detection means 2 disposed on the upper surface side of the circuit board 1 can be disposed between the second concave recess portion 5 of the concave container 3b and the circuit board 1, and thus the magnetic flux detection means 2 It is possible to provide a function of detecting a fall even for a device having a configuration in which the Hall IC 7 that constitutes can be soldered only on the upper side of the circuit board 1 and can be mounted.

(Embodiment 4)
FIG. 13: shows the block diagram of the side view cross section in Embodiment 4 of this invention. In addition, the same thing as Embodiment 1 attaches | subjects the same symbol, and abbreviate | omits detailed description.

  As shown in the figure, the magnetic flux placed on the lower surface side of the circuit board 1a is placed on the flat circuit board 1a that is built in the mounted device and is inclined with respect to the horizontal plane perpendicular to the direction of gravity. Magnetic flux detection means 2 for detecting presence / absence of the magnetic flux detection means 2, and a second in the center of the detection direction capable of detecting the presence / absence of magnetic flux perpendicular to the plane of the circuit board 1 a of the magnetic flux detection means 2 and the inside of the concave container 3 c. Of the circuit board 1a which is arranged as a positional relationship in which the center of the range direction of the magnetic flux which is the same as the gravity direction of the magnetic flux element 4 in the steady state where the magnetic flux element 4 falls into the concave depression portion 5 On the upper surface side, the concave container 3c is configured by being fixed and arranged by a container lid 6a in such a shape that the center of the funnel-shaped depression is oriented in the same direction as the direction of gravity.

  The magnetic flux detection means 2 is configured using the Hall IC 7. The Hall IC 7 is based on the Hall effect as described above, and is formed on the surface of the solid element having the Hall effect built in the IC. On the other hand, since it is configured to output a voltage signal as a magnetic flux detection result when receiving a magnetic field exceeding a prescribed magnetic flux density from the vertical direction, it is basically a solid-state element built in the IC. The magnetic flux is detected only when a magnetic field exceeding the specified magnetic flux density from the direction perpendicular to the surface is detected, but in general, the angle at which the magnetic flux perpendicular to the surface of this individual element can be detected Since there is a margin angle of about ± 45 ° in this range, this range is applied to a device on which the circuit board 1a that is inclined and disposed within the margin angle of the magnetic flux detection angle is mounted.

  With the above-described configuration, the concave container 3c is configured so that the upper surface side of the flat circuit board 1a that is inclined with respect to the horizontal plane perpendicular to the direction of gravity is covered with the container lid 6a. In a stable state where the device is not in a fallen state, the magnetic flux of the magnetized magnetic flux element 4 that is freely arranged in the concave recess portion 5 of 2 is arranged on the lower surface side of the circuit board and can be detected by the magnetic flux detection means 2. A function of detecting a fall can be provided and mounted on a device having a configuration in which the substrate 1a is inclined with respect to a horizontal plane perpendicular to the direction of gravity.

  Next, how the fall detection device configured as described above detects the fall state of the device will be described with reference to FIG.

  FIG. 14A shows a device equipped with the fall detection device in the left direction indicated by an arrow in the figure, and FIG. 14B shows a device equipped with the fall detection device in a right direction shown by an arrow in the drawing. Although it is a side sectional view showing a state when it falls, in each fall direction, in an overturned state at an angle that the magnetic flux element 4 slips off from the second concave depression 5 due to the influence of gravity. Since the same magnetic flux as the gravity direction of the magnetic flux element 4 moves outside the range of the detection direction of the magnetic flux detection means 2, the magnetic flux detection means 2 cannot detect the magnetic flux of the magnetic flux element 4 as a result. A fall detection function can be realized by judging a fall in a state where it is not detected.

(Embodiment 5)
FIG. 15 is a configuration diagram of the fall detection device according to the fifth embodiment of the present invention. In addition, the same thing as Embodiment 1 attaches | subjects the same symbol, and abbreviate | omits detailed description.

  As shown in the figure, a part of the outer surface material 16 constituting the outer shell of the device incorporating the circuit board 1 was recessed as a container lid portion 17 (represented by a dotted line in the figure) in a funnel shape of the concave container 3d. It can also be set as the structure which covers space and uses a lid. At this time, the overall height of the concave container 3d is designed in accordance with the maximum height of the component parts on the circuit board 1 that regulates the distance between the circuit board 1 of the device equipped with the function of the overturning device and the outer surface material 16. It is to be molded. In this configuration, it is possible to cope with the case where the outer surface material 16 that forms the outer shell of the device is formed of a material that does not affect magnetically. For example, a device having an outer shell made of a resin material such as ABS or PBT. Can be used in

  With the above configuration, a part of the outer surface material 16 that forms the outer shell of the device incorporating the circuit board 1 is used as the container lid portion 17, so that the space recessed in the funnel shape of the concave container 3 d can be covered. Further, it is possible to provide a fall detection at a lower cost by eliminating the need for the container lid and reducing the number of components.

(Embodiment 6)
FIG. 16 is a configuration diagram of the fall detection device according to the sixth embodiment of the present invention. In addition, the same thing as Embodiment 1 attaches | subjects the same symbol, and abbreviate | omits detailed description.

  As shown in the figure, a concave container portion 18 is formed as a part of the outer surface material 16a by directly denting the outer surface material 16a that forms the outer surface of the device incorporating the circuit board 1, and the outside of the outer surface material 16a. It can also be set as the structure which changes into a container lid with the face material 19 of the form which covers the outer surface of the open space which comprises the concave container part 18 which faces the surface side, and is covered. Even in this configuration, the outer surface material 16a that forms the outer shell of the device can be used when it is formed of a material that does not affect magnetically. For example, the outer shell is formed of a resin material such as ABS or PBT. Can be used in equipment.

  Here, it is necessary to consider the strength and long-term durability of the face material 19 for forming the device outline, and it is optimal to form the face material 19 with a material that does not affect magnetically, for example, ABS or PBT. Molded with a resin material such as, or cut a resin material sheet such as polyester into a required size. In addition, the face material 19 is opened and bonded to the surface of the outer surface material 16a by the adhering means 20 so as to be bonded and fixed. Here, the bonding means 20 is required to be able to stably bond the outer surface material 16a made of a resin material and the surface material 19 over a long period of time, for example, using an epoxy adhesive or a double-sided tape for resin. It is.

  With the above configuration, the open space of the concave container portion 18 configured as a part of the outer surface material 16a by directly denting the outer surface material 16a that forms the outer surface of the device incorporating the circuit board 1 covers the outer surface. The face material 19 can be replaced with a container lid, and can be realized by providing a fall detection at a lower cost by eliminating the need for a single component of the concave container and reducing the number of components.

(Embodiment 7)
FIG. 17 is a configuration diagram of the fall detection device according to the seventh embodiment of the present invention. In addition, the same thing as Embodiment 1 attaches | subjects the same symbol, and abbreviate | omits detailed description.

  FIG. 17A is a side sectional view showing the configuration of the present embodiment, and FIG. 17B is a transparent view seen from above. As shown in FIG. A magnetic flux detection means 2 is provided which protrudes on one surface side of the flat circuit board 1b arranged substantially vertically and detects the presence or absence of magnetic flux in the direction of gravity, and the magnetic flux detection range of the magnetic flux of this magnetic flux detection means 2 A concave container 3e having a funnel-shaped depression centered on the center vertical axis is disposed, and the magnetic flux element 4 is freely movable in the funnel-shaped depression of the concave container 3e. The second concave recess portion 5 is disposed so that the magnetic flux element 4 falls in the lowest central portion of the concave container 3, and the magnetic flux element 4 is placed inside the funnel-shaped recess of the concave reservoir 3. The entire open space of the funnel-shaped depression of the concave container 3 in the put state Overlying and a container lid 6b for fixing to the circuit board 1 in a state where the lid.

  Here, the magnetic flux detection means 2 detects the presence or absence of magnetic flux, and is configured using a general radial Hall IC 7d that changes into an electric signal state depending on the presence or absence of magnetic flux. Can be detected by detecting the presence or absence of magnetic flux in a direction parallel to the plane of the circuit board 1b by placing it in a fixed position fixed on the land of the circuit pattern on the lower surface side and projecting to one surface side. This is to select and use. In FIG. 17A, the magnetic flux detection direction of the magnetic flux detection means 2 is schematically shown in the shaded area.

  The Hall IC 7d has a Hall effect that a voltage is generated in a direction perpendicular to the current direction and the magnetic field direction when a current is applied to the solid (semiconductor thin film) element and a magnetic flux perpendicular to the surface of the solid element is applied. An integrated circuit component configured based on a configuration in which a voltage signal is output as a magnetic flux detection result when a magnetic field having a magnetic flux density higher than a prescribed magnetic flux density from a direction perpendicular to the surface of a solid-state element built in the IC is received. It has been done.

  Here, it is assumed that the flat circuit board 1 is built in a device to be mounted in a substantially vertical direction that is the same as the gravitational direction. Yes, it indicates that the surface has an inclination of about 90 ° ± 5 °, and in the following description, detailed description is omitted for the same description.

  Here, the concave container 3e and the container lid 6b are optimally formed of a material that does not magnetically affect the magnetic flux of the magnetic flux element 4 and the magnetic flux detected by the magnetic flux detection means 2. For example, ABS, PBT, etc. The resin material is molded and configured.

  Here, the inner wall surface connected to the second concave dent portion 5 in the open space of the concave container 3e has a slope enough to guide the magnetic flux element 4 to the second concave dent portion 5 and slide it down in a stable state where the device is not in a fallen state. It is necessary to set a smooth shape that makes contact at a point where the frictional force is the lowest so that the movement of the magnetic flux element 4 is not hindered as much as possible in the part where the magnetic flux element 4 contacts with an angle. The funnel shape is optimal, but it may be a hemispherical surface or a semi-elliptical spherical curved surface having a larger curvature than the inner wall of the second concave recessed portion 5.

  The container lid 6b covers and seals the funnel-shaped space of the concave container 3e from the side surface, and has two or more claw portions 8a at the end of the container lid 6b that contacts the circuit board 1b. The container lid 6b can be attached to the circuit board 1b by inserting the claw part 8a into a position opposite to the claw part 8a provided on the container lid 6b at a place on the circuit board 1b where the concave container 3e is disposed. Claw hole 9a is provided.

  With the above configuration, the circuit board 1b arranged substantially perpendicular to the direction of gravity and the circuit board provided with the magnetic flux detection means 2 arranged so as to protrude on one side of the circuit board 1b and detect the presence or absence of the magnetic flux in the direction of gravity. The claw hole 9a of the circuit board 1b that faces the claw part 8a of the container lid 6b in a state where the concave container 3e in which the magnetic flux element 4 is freely arranged in the second concave dent part 5 is covered with the container lid 6b on the same surface side of 1b. In a stable state where the mounted device is not in a fall state, the magnetic flux in the same direction as the gravity direction of the magnetic flux element 4 is applied to the circuit. It can be detected by the magnetic flux detection means 2 arranged on the same surface side of the substrate 1b.

  Next, how the fall detection device configured as described above detects the fall state of the device will be described with reference to FIG.

  FIG. 18A shows a device in which the fall detection device is mounted in the left direction indicated by an arrow in the figure, and FIG. 18B shows a device in which the fall detection device is installed in a right direction indicated by an arrow in the drawing. Although it is a side sectional view showing a state when it falls, in each fall direction, in an overturned state at an angle that the magnetic flux element 4 slips off from the second concave depression 5 due to the influence of gravity. Since the same magnetic flux as the gravity direction of the magnetic flux element 4 moves outside the range of the detection direction of the magnetic flux detection means 2, the magnetic flux detection means 2 cannot detect the magnetic flux of the magnetic flux element 4 as a result. A fall detection function can be realized by judging a fall in a state where it is not detected.

(Embodiment 8)
FIG. 19 is a configuration diagram of the fall detection device according to the eighth embodiment of the present invention.

  In addition, the same thing as Embodiment 1 and Embodiment 7 attaches | subjects the same symbol, and abbreviate | omits detailed description.

  As shown in the figure, the presence / absence of magnetic flux within a specified range in a direction perpendicular to the plane of the circuit board on one surface side of the flat circuit board 1b that is built in the device to be mounted and arranged substantially perpendicular to the direction of gravity A concave container 3f having a funnel-shaped depression in the central direction is arranged on the other surface side of the circuit board 1b which is the magnetic flux detection direction of the magnetic flux detection means 2. Then, a second concave recess portion formed such that the magnetic flux element 4a is freely arranged in a movable state inside the funnel-shaped recess of the concave container 3f so that the magnetic flux element 4a falls into the lowest central part of the concave container 3f. 5 in a state where the magnetic flux element 4a is put inside the funnel-shaped depression of the concave container 3f, and the open space of the funnel-shaped depression of the concave container 3f is covered and covered. Container lid 6c for fixing to the substrate 1b It is provided.

  The magnetic flux element 4a is made of a resin material such as ABS or PBT in consideration of durability and shape stability as a quasi-elliptical sphere shape whose top view is collapsed in the gravity direction in a stable state on a horizontal plane and whose side view is elliptical. It was created by molding. Here, FIG. 20A is a transparent top view showing the configuration of the magnetic flux element 4a, and FIG. 20B is a side partial sectional view showing the configuration of the magnetic flux element 4a. As shown in FIG. A small magnetic flux piece 21 along the outer periphery on the horizontal center of the inner center of the child 4a has a magnetic flux in the same direction that can be detected by the magnetic flux detection means 2 (in the figure, the outer peripheral direction is arranged so as to be an N pole). A plurality of magnetic flux elements 4a are provided at a uniform interval, and the magnetic flux element 4a is built in by simultaneous molding at the time of molding the magnetic flux element 4a. Therefore, in a stable state in which the magnetic flux element 4a is freely arranged and not in a falling state, as shown schematically in FIG. 19 by a set of dotted lines in the left-right direction of the magnetic flux element 4a, a horizontal plane perpendicular to the direction of gravity. The magnetic flux of a single magnetic pole is radiated in all directions. The magnetic flux element 4a may be a chamfered, low-profile columnar shape, but the ground surface is a point and the frictional force with the contact surface is minimized, so that it easily moves when a fall occurs, and the gravity direction is stable in a horizontal plane. A quasi-elliptical shape in which the direction of the magnetic flux magnetized so as to be the magnetic flux of the same magnetic pole in all directions of the horizontal plane that is perpendicular to the horizontal plane is stable without inclination in the horizontal plane direction is more optimal.

  Here, the magnetic flux piece 21 is also formed by forming a magnetized permanent magnet into a small cylindrical shape. For example, a ferrite magnet having excellent corrosion resistance and a large coercive force that is difficult to demagnetize, or a small magnetic force. The Alnico magnet is optimal, and is formed into a magnet by being magnetized in the required direction by the magnetic flux of an electromagnet after being molded into a cylindrical shape and sintered or melt-molded.

  Here, the magnetic flux detection means 2 detects the presence or absence of magnetic flux, and is configured using a general surface-mount type Hall IC 7 that changes the electric signal state depending on the presence or absence of magnetic flux. The Hall IC 7 is used by selecting one that can detect the same magnetic flux as a single magnetic pole radiated by the magnetic flux element 4a.

  Further, the center of the magnetic flux that is the same with respect to all the horizontal planes of the magnetic flux element 4a in the state where the magnetic flux element falls into the second concave concave portion formed in the lowest central portion of the funnel-shaped concave portion of the concave container 3f. The concave container 3f and the magnetic flux detection means 2 are arranged on the opposing surface side on the circuit board 1b in such a positional relationship that the surface overlaps the center of the magnetic flux detection range of the magnetic flux detection means 2.

  The container lid 6c covers and seals the funnel-shaped space of the concave container 3f from the side direction, and has two or more claw portions 8b at the end of the container lid 6c that contacts the circuit board 1b. The container lid 6c can be attached to the circuit board 1b by inserting the claw part 8b into a position opposite to the claw part 8b provided on the container lid 6c at a place on the circuit board 1b where the concave container 3f is disposed. For this purpose, a claw hole 9b is provided.

  With the above configuration, the magnetic flux detection means 2 for detecting the presence or absence of magnetic flux in the direction perpendicular to the plane of the circuit board 1b is arranged on one side of the flat circuit board 1b arranged substantially perpendicular to the direction of gravity. Then, the circuit board 1b faces the claw part 8b of the container lid 6c in a state in which the concave container 3f in which the magnetic flux element 4a is freely arranged in the second concave recess part 5 is covered with the container lid 6c on the other surface side of the circuit board 1b. It functions as a fall detection device in a state where it is inserted into the claw hole 9b of 1b and fixed to the circuit board 1b, and is perpendicular to the direction of gravity of the magnetic flux element 4a in a stable state where the mounted device is not in the fall state. Thus, the magnetic flux of the same magnetic pole radiated in all directions of the horizontal plane can be detected by the magnetic flux detection means 2 arranged on the other surface side where the concave container 3f of the circuit board 1b is arranged.

  Next, how the fall detection device configured as described above detects the fall state of the device will be described with reference to FIG.

  FIG. 21A shows a device equipped with the fall detection device in the left direction indicated by an arrow in the figure, and FIG. 21B shows a device equipped with the fall detection device in a right direction indicated by an arrow in the drawing. Although it is a side sectional view showing the state when it falls, the magnetic flux element 4a slips and falls off from the second concave depression 5 under the influence of gravity as shown in the figure even in the state of both fall directions. In an unsteady overturning state, the magnetic flux of the same magnetic pole radiated in all directions on the horizontal plane perpendicular to the direction of gravity of the magnetic flux element 4a moves out of the range of the detection direction of the magnetic flux detection means 2, and as a result The magnetic flux detection means 2 cannot detect the magnetic flux of the magnetic flux element 4a, and the fall detection function can be realized by judging the fall state when this magnetic flux is not detected.

  The fall detection device of the present invention is used not only in water-related equipment such as humidifiers and dehumidifiers, but also in electrical appliances that use liquids such as equipment that uses liquid fuel such as petroleum fan heaters. It can be used in a portable installation type device that needs to accurately detect and stop the operation of the device, and is useful for applications such as an electric heater.

BRIEF DESCRIPTION OF THE DRAWINGS Side view sectional view and partial enlarged sectional view showing a configuration of the fall detection device of Embodiment 1 of the present invention ((a) side view sectional view showing a configuration of the fall detection device, (b) a second in the same configuration) (Partial enlarged cross-sectional view of concave recess) The perspective transmission figure which shows the structure of the fall detection apparatus of Embodiment 1 of this invention ((a) The top view of the magnetic flux used for the structure, (b) The side view of the magnetic flux) Perspective perspective view showing the configuration of the fall detection device Perspective perspective view showing the assembly state of the fall detection device Side view sectional view showing the state of fall detection when a device equipped with the fall detection device falls Side cross-sectional enlarged view showing the configuration of the container lid claw portion of the fall detection device Side view sectional drawing which shows 1 structure around the magnetic flux detection means of the fall detection device Side view sectional drawing which shows the other structure of the magnetic flux detection means periphery of the fall detection device Side view sectional drawing which shows the other structure of the magnetic flux detection means periphery of the fall detection device Side view sectional view showing another configuration around the magnetic flux detection means of the fall detection device and a side view partial sectional view of the magnetic flux used ((a) side view sectional view showing the configuration around the magnetic flux detection means of the same configuration, (B) Side view partial sectional view of a magnetic flux element used in the same configuration) Side view sectional drawing and partial expanded sectional view which show the structure of the fall detection apparatus of this Embodiment 2 (a) Side view sectional drawing which shows the structure of the magnetic flux detection means periphery of the same structure, (b) Partial enlargement of the same structure (Cross section) Side view sectional drawing which shows the structure of the fall detection apparatus of this Embodiment 3. Side view sectional drawing which shows the structure of the fall detection apparatus of this Embodiment 4. Side view sectional view showing the state of the fall detection when the device equipped with the fall detection device falls ((a) The state of the fall detection when the mounted device falls in the left direction indicated by the arrow in the figure. Side view sectional view shown, (b) Side view sectional view showing a state of falling detection when the mounted device falls in the right direction indicated by the arrow in the figure) Side view sectional drawing which shows the structure of the fall detection apparatus of this Embodiment 5. Side view sectional drawing which shows the structure of the fall detection apparatus of this Embodiment 6. Side view sectional view and top view transmission diagram showing the configuration of the fall detection device of Embodiment 7 ((a) Side view sectional view showing the configuration of the fall detection device, (b) Top view transmission diagram of the same configuration) Side view sectional view showing the state of fall detection when a device equipped with the fall detection device falls ((a) shows the state of fall detection when the mounted device falls in the left direction indicated by the arrow in the figure) Side view sectional view, (b) Side view sectional view showing the state of the fall detection when the mounted device falls in the right direction indicated by the arrow in the figure) Side view sectional view and top view transmission diagram showing the configuration of the fall detection device of the eighth embodiment ((a) Side view sectional view showing the configuration of the fall detection device, (b) Top view transmission diagram of the same configuration) Top view transmission diagram and side view sectional view showing the configuration of the magnetic flux of the fall detection device ((a) top view of the magnetic flux element used in the configuration, (b) partial sectional view of the magnetic flux device in side view) Side view sectional view showing the state of fall detection when a device equipped with the fall detection device falls ((a) shows the state of fall detection when the mounted device falls in the left direction indicated by the arrow in the figure) Side view sectional view, (b) Side view sectional view showing the state of the fall detection when the mounted device falls in the right direction indicated by the arrow in the figure) Side view sectional drawing which shows the structure of the inclination switch in the conventional utility model literature 1 Side view sectional drawing which shows the structure of the inclination sensor in the conventional patent document 1

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Circuit board 1a Circuit board 1b Circuit board 2 Magnetic flux detection means 3 Concave container 3a Concave container 3b Concave container 3c Concave container 3d Concave container 3e Concave container 3f Concave container 4 Magnetic flux element 4a Magnetic flux element 5 2nd concave dimple part 6 Container lid 6a Container lid 6b Container lid 6c Container lid 11 Bundling yarn 12 Element piece 13 Braking liquid 16 Outer surface material 16a Outer surface material 17 Container lid portion 18 Concave container portion 19 Surface material

Claims (13)

A flat circuit board that is built into the equipment and is arranged substantially horizontally, perpendicular to the direction of gravity, and the presence or absence of magnetic flux in a specified range perpendicular to the plane of the circuit board that is placed on the lower surface of the circuit board , A concave container having a funnel-like hollow at the center disposed on the upper surface side of the circuit board, and a free-moving arrangement within the funnel-shaped depression of the concave container. A magnet lid, and a container lid for covering the space of the funnel-shaped depression and attaching the lid to the circuit board in a state in which the magnetic flux element is placed inside the concave container, and the magnetic flux element is stable on a horizontal plane. In the state, it is a quasi-elliptical sphere shape that is circular in top view and crushed in the direction of gravity, and is magnetized and magnetized so as to have a magnetic flux that can be detected by the magnetic flux detection means that is the same as the direction of gravity. Funnel shape of the concave container A second concave concave portion formed with a diameter slightly larger than the diameter of the top view of the magnetic flux so that the magnetic flux falls is provided at the lowest center of the hollowed space, and the second concave An overturn detection device, wherein the center of the concave recess portion and the center of the magnetic flux detection range of the magnetic flux detection means are arranged on a vertical axis. 2. The overturn according to claim 1, wherein a concave container in which a magnetic flux element is arranged inside a funnel-shaped depression is configured to be engageably fixed to a circuit board on which magnetic flux detection means is arranged with a container lid. Detection device. 2. The fall detection device according to claim 1, wherein the magnetic flux detection means can detect the presence or absence of both magnetic fluxes of N and S poles. 2. The fall detection device according to claim 1, wherein the magnetic flux detection means is arranged on the circuit board in a state in which two or more devices capable of detecting the presence or absence of each magnetic flux of N pole or S pole are brought close to each other. The magnetic flux detection means is capable of detecting the presence or absence of each single magnetic flux of N pole or S pole, and the magnetic flux detection means is in a stable state without a falling state in which a magnetic flux element is freely arranged inside the funnel-shaped depression of the concave container. Is suspended from the center of the container lid with the shortest length so that the magnetic flux does not reverse so that the magnetic flux of the magnetic flux always matches the magnetic pole direction of the magnetic flux that can be detected, and the magnetic flux element is movably bound to the container lid. The fall detection device according to claim 1, further comprising a binding yarn. The magnetic flux detection means can detect the presence or absence of each single magnetic flux of N pole or S pole, and the magnetic flux is detected in a stable state without a falling state in which a magnetic flux element is freely arranged inside the funnel-shaped depression of the concave container. 2. The overturn according to claim 1, wherein the magnetic flux element is configured such that the magnetic flux elements have the same magnetic flux in both the vertical direction and the vertical direction in a normal arrangement state in accordance with the magnetic pole direction of the magnetic flux detectable by the means. Detection device. 2. The overturn detection device according to claim 1, wherein a braking liquid for restricting the movement of the magnetic flux is contained in a sealed state by a container lid inside the funnel-shaped depression of the concave container. The magnetic flux detection means is arranged on the upper surface side of the circuit board, and the second concave depression of the concave container is arranged in such a form that the magnetic flux detection means is sandwiched between the magnetic flux detection means and the circuit board on the upper side of the magnetic flux detection means. The fall detection device according to claim 1. With respect to a flat circuit board that is built in the device and is inclined with respect to a horizontal plane that is perpendicular to the direction of gravity, the magnetic flux is applied to the second concave depression provided at the lowest central portion of the concave container. 2. The fall detection device according to claim 1, wherein a magnetic flux in a vertical direction of the magnetic flux element in a state where the child is depressed is in a range that can be detected by the magnetic flux detection means. 2. A configuration in which a part of an outer surface material constituting an outer shell of a device incorporating a circuit board is used as a lid to cover a space recessed in a funnel shape of a concave container as a container lid. Fall detection device. The concave container part is formed as a part of the outer surface material by directly denting the outer surface material that forms the outer surface of the device containing the circuit board, and the funnel shape of the concave container facing the outer surface side of this outer surface material The fall detection device according to claim 1, wherein the recessed space is formed by changing the cover into a container lid with a face material covering the outer surface. A plate-like circuit board that is built in the apparatus and arranged substantially perpendicularly to the direction of gravity, and a magnetic flux detection means that protrudes from one side of the circuit board and detects the presence or absence of magnetic flux in a specified range in the direction of gravity; A concave container having a space recessed in a funnel shape in the lower center direction disposed on the same surface of the circuit board on which the magnetic flux detection means is disposed, and the inside of the funnel-shaped depression of the concave container is freely movable. And a container lid for covering the space of the funnel-shaped depression in the state where the magnetic flux element is put inside the concave container, and attaching the lid to the circuit board. In the upper stable state, it is a quasi-elliptical sphere shape that is circular in top view and collapsed in the direction of gravity, and is magnetized and magnetized so as to have a detectable magnetic flux that is the same as the direction of gravity. And the concave surface A second concave depression formed with a diameter slightly larger than the diameter of the top view of the magnetic flux so that the magnetic flux falls down is provided in the lowest central part of the space recessed in the funnel shape of the vessel An overturn detection device, wherein the center of the second concave depression and the center of the magnetic flux detection range of the magnetic flux detection means are arranged on a vertical axis. A flat circuit board that is built in the device and arranged substantially perpendicularly to the direction of gravity, and the presence or absence of magnetic flux within a specified range perpendicular to the plane of the circuit board that is arranged on one side of the circuit board is detected. A magnetic flux detection means, a concave container having a funnel-like space in the lower center direction disposed on the other surface side of the circuit board on which the magnetic flux detection means is disposed, and a funnel-shaped depression of the concave container A magnetic flux element that is freely movably disposed inside, and a container lid that covers the space of the funnel-shaped depression in a state where the magnetic flux element is placed inside the concave container and is attached to the circuit board. The magnetic flux sensor has a quasi-elliptical sphere shape that is circular in top view and collapsed in the direction of gravity in a stable state on a horizontal plane, and can be detected by the magnetic flux detection means in all directions of the horizontal plane perpendicular to the direction of gravity. Have the same magnetic flux Further, it has a diameter slightly larger than the diameter of the top view of the magnetic flux element so that the magnetic flux element falls in the lowest center of the funnel-like space of the concave container. The second concave recess portion is formed, and the center surface of the magnetic flux that is the same in all directions of the horizontal plane of the magnetic flux child in the state where the magnetic flux element falls into the second concave recess portion is the magnetic flux. A fall detection device, characterized by being arranged so as to overlap the center of the magnetic flux detection range of the detection means.

Images