JP2006133130A - Sensor device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a versatile sensor device easy to handle alone by reducing the section of a device body in a front view so as to be miniaturizable. <P>SOLUTION: The device body 4 is composed of a bottomed cylindrical body 1 and a cover 3 fitted into a wide diameter part 1a provided on the opening side of the body 1. A circuit board 4 provided within the body 1 comprises a human body detecting sensor 6 mounted on one end part thereof so that its light receiving part is outward and vertical to the end surface of the one end part, and the light receiving part of the sensor 6 is exposed to the outside through a window hole 3a of the cover 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sensor device that is incorporated in a device or the like.

Conventionally, a device (for example, Patent Document 1) that performs control using a human body detection sensor or the like has been provided. A sensor device used for such a device is incorporated in the device as shown in FIGS. 6 (a) and 6 (b). A circuit board 21 on which a sensor, for example, a human body detection sensor 20 and a logic circuit for processing a detection signal of the human body detection sensor 20 into a predetermined signal, a signal processing unit including a timer unit, and a power supply unit are mounted. Designed and manufactured according to the device, the circuit board 21 is mounted on the mounting plate 23 of the device with a fixing screw 22 or the like as shown, and the light receiving portion of the human body detection sensor 20 on the circuit board 21 side is provided on the mounting plate 23 side. It is common to use a sensor device that is attached by an attachment method corresponding to each device, such as being exposed through the window hole 23a.
JP-A-6-243355 (paragraph number 0013, FIG. 1)

  In the sensor device corresponding to each of the above devices, a circuit board to be mounted is manufactured after designing a circuit for performing signal processing of the sensor element and finally signal processing necessary for the device even if the device is produced in small quantities. There was a need to do.

  For this reason, it is necessary to include an accompanying structure corresponding to the device, and there is a problem that a space for mounting must be secured in addition to an increase in size.

  The present invention has been made in view of the above points. The object of the present invention is to make the sensor body simple and easy to handle with high versatility because it has a small cross section viewed from the front of the apparatus body and can be miniaturized. To provide an apparatus.

  According to the first aspect of the present invention, a circuit board in which a human body detection sensor is mounted at one end so as to be perpendicular to the end face and the light receiving part is located outside the board, and the human body is accommodated in the circuit board from one end. And a cylindrical apparatus body with a light receiving portion of the detection sensor exposed to the outside.

  According to the first aspect of the present invention, the cross-section when viewed from the front of the apparatus main body is small, the size can be reduced, the apparatus itself can be easily handled, and a highly versatile sensor apparatus can be realized.

  According to a second aspect of the invention, in the first aspect of the invention, the circuit board is provided with an external connection terminal connected to a signal processing unit and a power supply unit mounted on the board so as to protrude from the other end to the outside of the board. The apparatus main body is characterized in that an external connection terminal protrudes outside from the other end.

  According to the invention of claim 2, it is possible to arrange the external connection terminals in a cross section when the apparatus main body is viewed from the front, and the circuit is not increased in size and is necessary for the apparatus side when incorporated in the apparatus. Can be easily connected by the external connection terminal, so that a general-purpose and small-sized sensor device usable for various devices can be realized.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the apparatus main body has a flange portion projectingly formed on the outer periphery in the vicinity of one end portion, and is attached to the outer peripheral surface in the vicinity of the flange portion and on the other end side. A screw part for screwing the nut is formed.

  According to the third aspect of the present invention, the device main body is passed through the mounting hole provided in the panel to be mounted, and the panel can be attached to the panel only by clamping the panel with the mounting nut screwed into the flange portion and the screw portion. It can be done easily, and the space for mounting on the panel is small.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, a heat ray shielding shielding cover is provided in front of the light receiving unit so as to cover at least a part of the light receiving unit of the human body detection sensor. It is provided in the apparatus main body.

  According to the invention of claim 4, it is possible to realize a sensor device having a function of setting a detection setting area without increasing the size of the device main body.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the operation display light emitting element and the illuminance sensor are mounted on the circuit board, and external light is emitted in the same direction as the light receiving direction of the human body detection sensor. A light guide that places one end on one end side of the apparatus main body so as to receive light at one end, and guides light received at one end to the other end side with the other end facing the light receiving surface of the illuminance sensor; Another light guide that has one end opposed to the light emitting surface of the operation display light emitting element and the other end arranged at one end of the apparatus main body, and guides the light of the operation display light emitting element received at one end to the other end side. It is characterized by having.

  According to the invention of claim 5, it is possible to realize a composite sensor device including an illuminance sensor that receives light from the same direction as the human body detection sensor without increasing the size of the device main body, and to display an operation state display from the front of the device main body. A visible operation display function can also be provided without increasing the size of the apparatus main body.

  The present invention can reduce the cross-section when viewed from the front of the apparatus main body, and has an effect that it is possible to realize a small sensor device that is easy to handle with the apparatus alone.

Embodiments of the present invention will be described below.
(Embodiment 1)
As shown in FIGS. 1 (a) to 1 (c), the present embodiment includes a bottomed cylindrical body 1 and a cover 3 fitted in a wide diameter portion 1a provided on the opening side of the body 1. A main body 2 is configured, and a circuit board 4 is housed in the body 1.

  The circuit board 4 is mounted with a human body detection sensor 6 composed of a pyroelectric element or the like at one end so that the light receiving portion protrudes outward from the substrate and is perpendicular to the end face of the one end. On the surface, an operation power is supplied to a signal processing unit (not shown) for processing a detection signal of the human body detection sensor 6, a timer unit (not shown), and a signal processing unit including the human body detection sensor 6 and the timer unit. A circuit element 7 such as an electronic chip and a variable resistor constituting a power supply unit (not shown) is mounted, and the other end is connected to a signal processing unit and a power supply unit for power supply, output, and ground (common) ) External output terminals 5 are mounted so as to protrude out of the substrate.

  In the present embodiment, three external output terminals 5 are mounted, but it is needless to say that the number may be two or four or more depending on the configuration of the signal processing unit or the like.

  Thus, the circuit board 4 configured as described above projects the external output terminals 5 to the outside from the corresponding insertion holes 8 formed on the bottom of the body 1 and places the other end on the bottom of the body 1. It is stored in the body 1 in a suspended form.

  With this storage arrangement, the human body detection sensor 6 on one end side of the circuit board 4 is disposed in the wide diameter portion 1a of the body 1, and the light receiving portion of the human body detection sensor 6 faces the outside of the body 1 from the opening. Here, when the cover 3 is fitted in the wide diameter portion 1a of the body 1 and attached to the opening, the light receiving portion of the human body detection sensor 6 is exposed to the outside through the window hole 3a of the cover 3, and the heat ray X from the front is exposed. It can be detected.

  The outer diameter of the wide diameter portion 1a of the body 1 may be made smaller than the outer diameter of the cover 3, and the cover 3 may be fitted outside the wide diameter portion 1a of the body 1.

  In the sensor device of the present embodiment configured as described above, the human body detection sensor 6 is mounted in the direction perpendicular to the end surface of the circuit board 4, so that the device viewed from the front surface direction of the human body detection sensor 6. The cross section of the main body 2 is made small to reduce the size of the entire apparatus, and the space for the attachment portion is made small.

  Further, the user can use the sensor device only by connecting between the power supply, output, and ground external connection terminals 5 protruding from the bottom of the body 1 and the device side circuit portion.

  If the external connection terminal 5 has a terminal shape for connector connection, the connection to the external connection terminal 5 can be easily performed.

(Embodiment 2)
In the present embodiment, in order to be easily attached to a panel such as a control panel, as shown in FIG. 2 (a), in the vicinity of the rear end portion of the wide diameter portion 1a, rearward from the rear end portion, that is, the other end portion side of the body 1 The external thread part 1b is formed in the outer peripheral surface of the. Since other configurations are the same as those of the first embodiment, the same components are denoted by the same reference numerals and description thereof is omitted.

  Thus, when the sensor device of this embodiment is attached to a control panel or the like, as shown in FIG. 2 (b), the attachment hole 6a having an inner diameter slightly larger than the outer diameter of the body 1 perforated in the attachment panel 9 is provided. On the other hand, the body 1 of the apparatus main body 2 is inserted from the front side of the panel 9 to a position where the flange portion constituted by the rear end portion of the wide diameter portion 1a hits the front side of the panel 9 and protrudes to the rear side of the panel 9 3, with a locking washer 9 shown in FIG. 3A (or (b)) inserted, a mounting nut 11 is screwed and fastened to the male screw portion 1 b. As a result, the flange portion formed by the rear portion of the wide diameter portion 1a of the body 1 and the nut 11 sandwich the panel 9 via the washer 9, and the apparatus main body 1 can be attached to the panel 9 as shown in FIG. It is.

  In the present embodiment described above, it is possible to easily attach to the panel 9 such as the control panel with the male screw portion 1b on the body 1 side, the washer 10, and the nut 11. Further, the light receiving surface of the human body detection sensor 5 protrudes to the outside in the attached state, and the detection direction can be easily aligned.

  In the case where the cover 3 is fitted outside the wide part 1a of the body 1, the cover 3 may be configured to have a screw part differently. Of course, the wide-diameter portion 1a (cover 3) and the screw portion formed on the nut 11 may have the wide-diameter portion 1a (cover 3) as a female screw and the nut 11 as a male screw.

(Embodiment 3)
In this embodiment, as shown in FIGS. 4A and 4B, a part of the light receiving portion of the human body detection sensor 5 exposed forward from the window hole 3a of the cover 3 is covered to partially shield the heat rays from the human body. 4 (c), a substantially hemispherical shielding cover 12 for setting the detectable area A is provided. The shielding cover 12 is rotatably provided on the cover 3, for example, and the shielding cover 12 is rotated. Thus, the detectable area A can be set freely. Of course, the detectable area A may be set by rotating the cover 3 together with the cover 3.

  Since other configurations are the same as those in the first embodiment, some of the configurations are omitted, and the same components are denoted by the same reference numerals.

  Thus, according to the sensor device of the present embodiment, when it is used by being attached to a production facility, the detectable area A can be set by the shielding cover 12 so as to prevent malfunction due to the heat rays from the heat source of the facility equipment. It becomes possible.

Although the illustrated embodiment corresponds to the body 1 without the male screw portion of the first embodiment, it is needless to say that it can correspond to the body 1 of the second embodiment.
(Embodiment 4)
In this embodiment, in addition to the human body detection sensor 5, as shown in FIG. 5B, an illuminance sensor (brightness detection sensor) 13 and a light emitting diode 14 as a light emitting element for operation display are provided. That is, as shown in FIG. 5B, the chip of the illuminance sensor 13 is mounted on one side of the substrate surface behind the mounting position of the human body detection sensor 5 so that the light receiving surface is perpendicular to the substrate surface. In addition, the chip of the light emitting diode 14 is mounted on the opposite substrate surface so that the light emitting surface is outward and perpendicular to the substrate surface, and the cover 3 is made of light transmissive, that is, a transparent resin molded product. A light guide 15a formed so that one end surface is in contact with the back surface of the cover 3 and the other end surface is in contact with the light receiving surface of the illuminance sensor 13 so that light from outside the cover 3 can be received by the illuminance sensor 13; The light guide 15b has one end face in contact with the light emitting face of the operation display light emitting diode 14 and the other end face in contact with the back face of the cover 3. Note that the positions of the back surface of the cover 3 with which one end of the light guides 15a and 15b abuts are both sides (upper and lower sides in the figure) of the window hole 3a through which the human body detection sensor 5 is exposed.

  Since other structures may be any of the first to third embodiments, they are not particularly shown here.

  Thus, in this embodiment, the outside light at the installation location passes through the cover 3 and enters the one end face of the light guide 15a, is guided to the other end face through the light guide 15a, and further exits from the other end face. Thus, the light is incident on the light receiving surface of the illuminance sensor 13. As a result, the illuminance sensor 13 can detect the illuminance at the installation location by receiving external light.

  The light emitted from the operation display light emitting diode 14 is incident on one end surface of the light guide 15b, guided to the other end surface in the light guide 15b, and emitted from the other end surface. The emitted light passes through the cover 3 and can be viewed from the front of the apparatus main body 2. Thus, the user can know whether or not the sensor device is operating.

  As described above, in the present embodiment, a composite sensor device including the illuminance sensor 13 having the same light receiving direction as the heat ray receiving direction of the human body detection sensor 5 can be realized, and the light of the light emitting diode 14 indicating the operating state is covered with the cover 3. It can be visually recognized from the front.

1A and 1B show an embodiment 1, in which (a) is an exploded perspective view, (b) is a sectional view, and (c) is a side view. FIG. 9 shows a second embodiment, where (a) is a side view, (b) is an explanatory view of attachment to a panel, and (c) is a side view with a part omitted in a state attached to the panel. (A), (b) is a perspective view of the washer used for Embodiment 2, respectively. FIG. 7 shows Embodiment 3, wherein (a) is a front view, (b) is a side view that can be partially omitted, and (c) is an explanatory view of a detection area. FIG. 9 shows a fourth embodiment, where (a) is a front view of a cover, and (b) is a cross-sectional view of a main part that can be partially omitted. It shows the attachment state to the panel of a prior art example, Comprising: (a) is a front view which can be omitted partially, (b) is a sectional view which can be partially omitted.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Body 2 Apparatus body 3 Cover 3a Window hole 4 Circuit board 5 External connection terminal 6 Human body detection sensor 7 Circuit element

Claims (5)

A circuit board in which a human body detection sensor is mounted at one end so that the light receiving section is positioned outside the board in a direction perpendicular to the end surface, and the light receiving section of the human body detection sensor is externally connected from one end. And a cylindrical device body exposed to the sensor. The circuit board is provided with an external connection terminal connected to a signal processing unit and a power supply unit mounted on the substrate so as to protrude from the other end to the outside of the substrate, and the apparatus body has the external connection terminal externally connected from the other end. The sensor device according to claim 1, wherein the sensor device projects. The apparatus main body has a flange portion projectingly formed on the outer periphery in the vicinity of one end portion, and a screw portion for screwing a mounting nut in the vicinity of the flange portion and on the outer peripheral surface on the other end portion side. The sensor device according to claim 1 or 2. 4. The apparatus main body is provided with a shielding cover for heat ray shielding disposed in front of the light receiving unit so as to cover at least a part of the light receiving unit of the human body detection sensor. The sensor device according to any one of the descriptions. The operation display light emitting element and the illuminance sensor are mounted on the circuit board, and one end is arranged on one end side of the apparatus main body so as to receive external light at one end in the same direction as the light receiving direction of the human body detection sensor, A light guide for guiding light received at one end to the other end side with the other end facing the light receiving surface of the illuminance sensor, one end facing the light emitting surface of the light emitting element for operation display, and the other end of the apparatus main body 5. Another light guide that guides the light of the light-emitting element for operation display received at one end to the other end side. Sensor device.

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