JP2018100909A - Sensor device and lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sensor device which can suppress deflection of a substrate when an external force is applied to a substrate housed in a case, and to provide a lighting fixture.SOLUTION: A sensor device 1 includes a case 4, and a substrate 5 housed in the case 4. The case 4 includes a support body 2 supporting the substrate 5, and a cover 3 mounted on the support body 2 so as to cover the substrate 5 supported by the support body 2. The support body 2 has a support section 211 supporting the substrate 5 in a peripheral edge portion of the substrate 5. The cover 3 is formed into a bag shape by a bottom face portion 31 which is formed from a synthetic resin and faces a first surface 51 of the substrate 5, and a first side face portion 32 and a second side face portion protruding from an edge of the bottom face portion 31 to the side of the substrate 5. The bottom face portion 31 has one or more protrusions 313 so as to be brought into contact with or into close contact with the first surface 51 of the substrate 5 in a state of protruding the side of the substrate 5 and has the cover 3 mounted on the support body 2.SELECTED DRAWING: Figure 6

Description

  The present invention generally relates to a sensor device and a lighting fixture, and more particularly relates to a sensor device for detecting the presence of an object, and a lighting fixture including the sensor device.

  2. Description of the Related Art Conventionally, a lighting fixture including a printed circuit board and a case that stores and holds the printed circuit board has been provided (see, for example, Patent Document 1). The case is formed in a box shape by bending a thin plate made of an aluminum material, and has a first cut and raised piece for holding the printed circuit board. In the lighting apparatus described in Patent Literature 1, after the printed board is stored in the case, the printed board is held between the first cut and raised piece and the second cut and raised piece, thereby holding the printed board in the case.

Japanese Patent Laid-Open No. 2004-6134

  By the way, in the lighting fixture described in Patent Document 1, when an external force is applied from the thickness direction to the printed circuit board (substrate) housed in the case, the substrate is bent in the thickness direction by the external force. Then, the bending of the substrate could not be suppressed.

  This invention is made | formed in view of the said subject, and it aims at providing the sensor apparatus and lighting fixture which can suppress the bending of a board | substrate when external force is applied with respect to the board | substrate accommodated in the case.

  A sensor device according to an aspect of the present invention includes a case and a substrate housed in the case. The substrate has at least a first surface on which a sensor element is mounted, and a second surface on a surface opposite to the first surface and at least a connector for receiving power from the outside. The case includes a support that supports the substrate, and a cover that is attached to the support so as to cover the substrate supported by the support. The support body includes a support portion that supports the substrate at a peripheral edge portion of the substrate. The cover is made of a synthetic resin and is formed in a box shape with a bottom surface portion facing the first surface of the substrate and a side surface portion protruding from the edge of the bottom surface portion toward the substrate side. The bottom surface portion has one or more protrusions that protrude toward the substrate and contact or approach the first surface of the substrate when the cover is attached to the support.

  The lighting fixture which concerns on 1 aspect of this invention is equipped with the above-mentioned sensor apparatus and the fixture main body which hold | maintains the said sensor apparatus.

  ADVANTAGE OF THE INVENTION According to this invention, the bending of a board | substrate when external force is applied with respect to the board | substrate accommodated in the case can be suppressed.

FIG. 1 is a perspective view of a sensor device and a lighting fixture according to an embodiment of the present invention. FIG. 2 is a front view of the sensor device. FIG. 3 is an exploded perspective view of the sensor device. 4A is a front view of the support body of the sensor device, FIG. 4B is a plan view, FIG. 4C is a bottom view, and FIG. 4D is a right side view. 5A is a front view of the cover of the sensor device, FIG. 5B is a plan view, FIG. 5C is a bottom view, and FIG. 5D is a right side view. FIG. 6 is a cross-sectional view of the above sensor device.

  Hereinafter, an embodiment of the present invention will be described. The following embodiment is only one of various embodiments of the present invention. Further, the following embodiments can be variously changed according to the design or the like as long as the object of the present invention can be achieved.

  The lighting fixture 10 of this embodiment is installed in the wall surface of the landing of the staircase provided in the building, for example. In the following description, unless otherwise specified, the arrows shown in FIGS. 1 to 6 define the vertical and horizontal directions and the front and rear directions of the sensor device 1 and the lighting fixture 10. That is, when the lighting fixture 10 is installed on the wall surface of the landing, the vertical direction (vertical direction) is the vertical direction, the horizontal direction is the horizontal direction, and the normal direction of the wall surface is the front-back direction. However, these directions are not intended to define the directions in which the sensor device 1 and the lighting fixture 10 are used. Moreover, the arrows shown in FIGS. 1 to 6 are merely described for the purpose of assisting the explanation, and do not involve an entity.

  The lighting fixture 10 of this embodiment is provided with the light source unit 11, the fixture main body 12, the sensor mounting base 13, and the sensor apparatus 1, as shown in FIG.

  The light source unit 11 includes a cover 111 and a light source 112.

  The cover 111 is formed in a box shape whose rear surface is opened by a light-transmitting synthetic resin (for example, polycarbonate resin, acrylic resin, or the like). The cover 111 is long and long in the left-right direction.

  The light source 112 has a flat mounting board that is long in the left-right direction. On one surface (front surface) of the mounting substrate, a plurality of LEDs (light emitting diodes) are mounted at equal intervals along the left-right direction (longitudinal direction of the mounting substrate).

  The cover 111 and the light source 112 are attached to an attachment member, and attached to the instrument body 12 via the attachment member. The mounting member is a U-shaped shape as seen from the left-right direction, with a flat bottom plate that is long in the left-right direction and a pair of side plates that protrude rearward from both ends in the width direction (up-down direction) of the bottom plate. . The light source 112 is attached to one surface (front surface) of the bottom plate of the attachment member. The cover 111 is attached to the attachment member so as to cover the light source 112. A control unit and a power supply unit are further attached to the attachment member.

  The control unit operates by being supplied with electric power from a power source, and is configured to control turning on / off of the light source 112 in accordance with a detection signal (described later) input from the sensor device 1. For example, when the detection signal from the sensor device 1 is input, the control unit turns on the light source 112 by outputting a control signal instructing to turn on the light source 112 to the power supply unit. In addition, the control unit supplies a control signal for instructing the light source 112 to be turned off or dimmed when a predetermined standby time (for example, several tens of seconds) elapses after the detection signal from the sensor device 1 is not input. By outputting to the unit, the light source 112 is turned off or dimmed. Here, “lighting” refers to lighting the light source 112 at a dimming level of 100% (that is, full lighting), and “dimming” is a dimming greater than 0% and smaller than 100%. This means that the light source 112 is turned on at the light level. That is, in this embodiment, the light source 112 is configured to be dark when the detection signal is not input to the control unit.

  The power supply unit is configured to convert AC power supplied from the power source into DC power and supply the converted DC power to the light source 112. The power supply unit is configured to increase or decrease the DC power supplied to the light source 112 in accordance with a control signal from the control unit. For example, when a control signal instructing lighting is input from the control unit, the power supply unit supplies direct current power necessary for lighting the light source 112 to the light source 112. Further, the power supply unit stops the supply of DC power to the light source 112 when a control signal instructing turning off is input from the control unit.

  The instrument body 12 is formed in a long box shape with an open front surface, for example, by bending a metal plate. The instrument body 12 has a flat plate-like back plate that is long in the left-right direction, an upper plate and a lower plate that protrude forward from both ends in the width direction (short direction) of the back plate, and both ends in the longitudinal direction of the back plate, respectively. It has a left side plate and a right side plate protruding forward. A plurality of holes are provided in the back plate of the instrument body 12 along the left-right direction. The instrument main body 12 is fixed to the wall surface by passing a plurality of anchor bolts protruding from the wall surface of the landing through the corresponding holes and then tightening a nut on each anchor bolt.

  The sensor device 1 is a radio wave sensor configured to detect the movement of an object using, for example, millimeter wave radio waves as a medium. In the present embodiment, the sensor device 1 detects the movement of an object using a radio wave having a frequency of 24 [GHz] as a medium. In the present embodiment, the object to be detected by the sensor device 1 is, for example, a door provided at an entrance to a staircase, or a person who opens and closes the landing area.

  Here, in the present embodiment, the sensor device 1 is a Doppler-type radio wave sensor that applies the Doppler effect. The radio wave (transmitted wave) transmitted from the sensor element 6 (see FIG. 6) and the sensor element 6 receive the radio wave sensor. The movement of the object is detected using the frequency difference from the radio wave (reflected wave). As shown in FIG. 1, the sensor device 1 is attached to the center of the lower plate of the instrument body 12 in the left-right direction via a sensor mounting base 13. In other words, the instrument body 12 is configured to hold the sensor device 1 via the sensor mount 13.

  As shown in FIGS. 2 and 3, the sensor device 1 includes a case 4 and a substrate 5 accommodated in the case 4.

  The case 4 includes a support 2 that supports the substrate 5 and a cover 3 that is attached to the support 2 so as to cover the substrate 5 supported by the support 2.

  The support 2 is formed in a box shape whose rear surface is opened by a synthetic resin such as polystyrene, polypropylene, or ABS (Acrylonitrile Butadiene Styrene). As shown in FIGS. 4A to 4D, the support 2 includes a facing portion 21, a pair of first side wall portions 22, and a pair of second side wall portions 23 and 24. The facing portion 21 has a flat plate shape that is long in the left-right direction. The pair of first side wall portions 22 protrudes rearward from both ends in the left-right direction (longitudinal direction) of the facing portion 21. The pair of second side wall portions 23 and 24 protrudes rearward from both ends of the facing portion 21 in the vertical direction (short direction). Here, in the present embodiment, the pair of first sidewall portions 22 and the pair of second sidewall portions 23 and 24 constitute a sidewall portion.

  A plurality of (seven in the illustrated example) support portions 211 protruding forward are provided at the outer peripheral edge of the front surface of the facing portion 21 at intervals along the circumferential direction. Steps are provided at the front ends (front ends) of the plurality of support portions 211, and the substrate 5 is supported by the support 2 by placing the peripheral portion of the substrate 5 on these steps. In addition, a rectangular exposure hole 212 that penetrates in the front-rear direction (thickness direction of the facing portion 21) is provided below and on the left side of the facing portion 21. The exposure hole 212 is provided at a position facing a connector 7 (described later) mounted on the second surface 52 of the substrate 5 in a state where the substrate 5 is supported by the support 2 (see FIG. 3). . Therefore, in a state where the substrate 2 is supported by the support 2, the connector 7 is disposed in the exposure hole 212.

  One (lower) second side wall portion 23 is provided with a first opening portion 231 including a small opening portion 231a and a large opening portion 231b. The small opening 231a has a rectangular shape when viewed from above and below, and is formed so as to be continuous with the exposure hole 212 provided in the facing portion 21. The large opening 231b has a rectangular shape when viewed from the vertical direction, and is formed so as to be continuous with the small opening 231a in the vertical direction. The large opening 231b has a larger opening area than the small opening 231a. On the right side of the small opening 231a, a catching groove 232 and a release groove 233 are provided so as to be aligned in the left-right direction. The hooking groove 232 has a rectangular shape when viewed in the vertical direction, and is formed to be continuous with the large opening 231b at the rear end. In the state where the cover 3 is attached to the support 2, the hooking groove 232 is hooked with a protrusion 332 (described later) provided on the second side surface portion 33 of the cover 3. The release groove 233 has a rectangular shape when viewed in the vertical direction, and a release jig (second release jig) is inserted when the cover 3 is removed from the support 2.

  A rectangular hooking groove 241 that is long in the front-rear direction is provided on the left side of the other (upper) second side wall 24. In the state where the cover 3 is attached to the support 2, the hooking groove 241 is hooked by a projection 341 (described later) provided on the second side surface portion 34 of the cover 3.

  Similar to the support 2, the cover 3 is formed of a synthetic resin such as polystyrene, polypropylene, ABS, or the like into a box shape with an open rear surface. As shown in FIGS. 5A to 5D, the cover 3 includes a bottom surface portion 31, a pair of first side surface portions 32, and a pair of second side surface portions 33 and 34. The bottom surface portion 31 has a flat plate shape that is long in the left-right direction. The pair of first side surface portions 32 protrudes rearward from both ends in the left-right direction (longitudinal direction) of the bottom surface portion 31. The pair of second side surface portions 33 and 34 protrudes backward from both ends of the bottom surface portion 31 in the vertical direction (short direction). Here, in the present embodiment, the pair of first side surface portions 32 and the pair of second side surface portions 33 and 34 constitute a side surface portion.

  A plurality (six in the illustrated example) of support protrusions 311 protruding rearward are provided on the outer peripheral edge of the rear surface of the bottom surface portion 31 at intervals along the circumferential direction. The plurality of support protrusions 311 are configured to contact the first surface 51 of the substrate 5 in a state where the cover 3 is attached to the support 2 and to support the substrate 5 together with the plurality of support portions 211 of the support 2. (See FIG. 6). In addition, at a position near the center on the rear surface of the bottom surface portion 31, a pair of projecting portions 312 arranged side by side in the left-right direction is provided. The pair of protrusions 312 face the sensor element 6 mounted on the first surface 51 of the substrate 5 in a state where the cover 3 is attached to the support 2 (see FIG. 6). Further, a concave portion 314 that is recessed in the front-rear direction (thickness direction of the bottom surface portion 31) is provided on the right side of the pair of projecting portions 312 on the rear surface of the bottom surface portion 31. The concave portion 314 has a rectangular shape that is long in the vertical direction, and faces the infrared light receiving element 8 (described later) mounted on the substrate 5 in a state where the cover 3 is attached to the support 2. Further, the rear surface of the bottom surface portion 31 is provided with a protrusion 313 that has a cross shape when viewed from the front-rear direction and protrudes rearward. The protrusion 313 overlaps with the connector 7 mounted on the second surface 52 of the substrate 5 in the front-rear direction in a state where the cover 3 is attached to the support 2. Thus, by making the shape of the protruding portion 313 a cross shape, the amount of resin required for molding can be reduced while maintaining the strength as compared with the case where the shape of the protruding portion is a prismatic shape.

  A rectangular attachment piece 321 that protrudes outward (leftward or rightward) is provided at the rear end of each of the pair of first side surfaces 32. These attachment pieces 321 are used when the sensor device 1 is attached to the sensor attachment base 13.

  The second opening 331 is provided in one (lower) second side surface portion 33. The second opening 331 has a rectangular shape when viewed in the vertical direction, and the opening area is substantially the same as the large opening 231 b provided in the support 2. Therefore, when the cover 3 is attached to the support 2, the large opening 231 b of the first opening 231 and the second opening 331 overlap each other in the vertical direction. In addition, a protrusion 332 that protrudes inward is provided at the right rear end portion of the inner peripheral surface (upper surface) of the second side surface portion 33. When the cover 3 is attached to the support 2, the protrusion 332 is hooked on the front end edge of the catching groove 232 provided in the second side wall portion 23 of the support 2.

  The other (upper) second side surface portion 34 is provided with a protrusion 341 that protrudes inwardly. The protrusion 341 is provided on the left side of the inner peripheral surface (lower surface) of the second side surface portion 34 and at the center in the front-rear direction. In a state where the cover 3 is attached to the support 2, the protrusion 341 is hooked on the front end edge of the catching groove 241 provided in the second side wall portion 24 of the support 2. Here, the protrusion 332 and the protrusion 341 are provided at the same position in the front-rear direction and at a point-symmetrical position with respect to the center of the bottom surface portion 31.

  As shown in FIG. 3, the substrate 5 is a flat printed board that is long in the left-right direction, and has a first surface 51 and a second surface 52. The sensor element 6 and the infrared light receiving element 8 are mounted side by side in the left-right direction on the first surface 51 which is the front surface of the substrate 5. The sensor element 6 is positioned closer to the center of the first surface 51 in the left-right direction, and the infrared light receiving element 8 is positioned closer to the right of the first surface 51 in the left-right direction (see FIG. 6). A connector 7 for receiving power from the outside is mounted on the second surface 52 which is the rear surface of the substrate 5. The connector 7 is located on the left side and the lower side in the left-right direction of the second surface 52 (see FIG. 3).

  The sensor element 6 has a transmission antenna that transmits radio waves and a reception antenna that receives radio waves. As described above, when the transmission antenna and the reception antenna are configured integrally, the electric field coupling between the transmission antenna and the reception antenna is strong, and the radio wave transmitted from the transmission antenna may be directly incident on the reception antenna. In the present embodiment, in order to weaken the electric field coupling between the transmitting antenna and the receiving antenna, a pair of projecting portions 312 are provided at positions facing the sensor element 6 in the bottom surface portion 31 of the cover 3. In this case, the electric field coupling between the transmitting antenna and the receiving antenna can be weakened by increasing the electric field coupling between each of the pair of projecting portions 312 and the transmitting antenna or the receiving antenna. However, in this case, it is preferable that the cover 3 is formed of a synthetic resin (for example, ABS) having a relatively low relative dielectric constant.

  The connector 7 is a power receiving side connector for receiving power supply from the outside, and is supplied with power by connecting a power supply side connector electrically connected to an external power source via an electric wire. The connector 7 is disposed in the exposure hole 212 provided in the facing portion 21 of the support 2 in a state where the sensor device 1 is assembled. Therefore, the operator connects the power feeding side connector to the connector 7 exposed through the exposure hole 212.

  The infrared light receiving element 8 is configured to receive an infrared signal from a remote controller operated by an operator or the like. The infrared signal includes setting contents (for example, reception sensitivity of the radio wave sensor) regarding the function of the sensor device 1. In the present embodiment, the concave portion 314 is provided in a portion facing the infrared light receiving element 8 in the bottom surface portion 31 of the cover 3 to reduce the thickness of the portion, thereby making it easier to receive an infrared signal from the remote controller. ing.

  Next, the assembly procedure of the sensor device 1 will be described. The orientation of the substrate 5 is adjusted so that the opposing portion 21 of the support 2 and the second surface 52 of the substrate 5 face each other, and the substrate 5 is supported by the support 2. At this time, the substrate 5 is supported in a state in which the plurality of support portions 211 protruding from the facing portion 21 are in contact with the peripheral portion of the second surface 52 and spaced from the facing portion 21. Subsequently, the sensor device 1 is assembled by attaching the cover 3 to the support 2. At this time, the cover 3 is attached to the support 2 in a state where the first opening 231 provided in the support 2 and the second opening 331 provided in the cover 3 are in the same direction (downward). It is done. In a state where the cover 3 is attached to the support 2, the large opening 231 b that is a part of the first opening 231 and the second opening 331 overlap each other in the vertical direction. Further, in a state where the cover 3 is attached to the support 2, the projection 332 is caught on the front end edge of the catching groove 232, and the projection 341 is caught on the front end edge of the catching groove 241. Further, in a state where the cover 3 is attached to the support 2, the substrate 5 is sandwiched between the plurality of support portions 211 on the support 2 side and the plurality of support protrusions 311 on the cover 3 side in the front-rear direction. Thus, the substrate 5 is held by the case 4.

  By the way, in the above-mentioned conventional lighting fixture, in order to suppress the bending of the printed circuit board, it is conceivable to provide a support pin for supporting the printed circuit board from the lower side. However, since the case is made of metal, the support pin is printed. Contact with the substrate may cause problems such as a short circuit. Therefore, in the above-described conventional lighting fixture, a support pin for supporting the printed circuit board cannot be provided in the case.

  FIG. 6 is a cross-sectional view of a state in which the cover 3 is attached to the support 2 that supports the substrate 5. In this state, the substrate 5 is held by a plurality of support portions 211 provided on the support body 2 and a plurality of support protrusions 311 provided on the cover 3. In this state, the connector 7 mounted on the second surface 52 of the substrate 5 is disposed in the exposure hole 212 provided in the facing portion 21 of the support 2. Further, in this state, the protruding portion 313 protruding from the bottom surface portion 31 of the cover 3 is in contact with the first surface 51 of the substrate 5.

  By the way, the connector 7 mounted on the substrate 5 is connected to the power feeding side connector electrically connected to the external power source as described above. At this time, when the dimension in the front-rear direction (depth dimension) is large as in the support 2 and the cover 3 of this embodiment, the distance to the connector 7 is long and the workability is not good. There is a possibility that poor contact occurs with 7. Therefore, in the present embodiment, as described above, the support 2 is provided with the first opening 231 and the cover 3 is provided with the second opening 331. By providing the first opening 231 and the second opening 331, the distance to the connector 7 can be shortened, and as a result, the connection workability of the power supply side connector can be suppressed from being reduced. Furthermore, poor contact between the power supply side connector and the connector 7 can also be suppressed.

  Here, in the sensor device 1 according to the present embodiment, it is assumed that the substrate 5 is replaced due to, for example, a defect in the substrate 5 after the sensor device 1 is assembled. In this case, it is necessary to remove the cover 3 from the support 2 and replace the substrate 5. Hereinafter, a method for removing the cover 3 from the support 2 will be described.

  First, the operator inserts a first releasing jig (for example, a flat-blade screwdriver) into the catching groove 241 provided in the support body 2 to bend the second side surface portion 34 of the cover 3 outwardly, so that the protrusion 341 is formed. The state of being caught on the front edge of the catching groove 241 is released. In this state, the operator inserts a second release jig (for example, a flat-blade screwdriver) into the release groove 233 provided in the support 2 and uses the tip of the second release jig as the rotation center for the second release. Rotate the jig outward. As a result, the state in which the protrusion 332 is caught in the catching groove 232 is released, and the cover 3 can be removed from the support 2. That is, according to the sensor device 1 of the present embodiment, the cover 3 can be easily removed from the support 2 by using the first release jig and the second release jig.

  Hereinafter, modifications of the sensor device 1 of the present embodiment will be described.

  In the above-described embodiment, the case in which the number of the protrusions 313 provided on the bottom surface 31 of the cover 3 is one has been described as an example. However, one or more protrusions may be provided. However, when two or more protrusions are provided, at least one of the protrusions overlaps with the connector 7 mounted on the second surface 52 of the substrate 5 in the thickness direction of the substrate 5 or a position near the connector 7. Is preferably provided.

  In the above-described embodiment, the case where the sensor device 1 is a radio wave sensor has been described as an example. However, the sensor device 1 is not limited to a radio wave sensor, and may be, for example, an infrared sensor using infrared rays or an ultrasonic wave. May be an ultrasonic sensor using

  In the above-described embodiment, both the support 2 and the cover 3 included in the case 4 are formed of synthetic resin, but at least the cover 3 may be formed of synthetic resin. Therefore, the support 2 is not limited to a synthetic resin and may be formed of a metal material.

  In the above-described embodiment, the substrate 5 is supported by the plurality of support portions 211. However, the configuration of the support portion is not limited to the present embodiment, and the substrate 5 is supported at the peripheral edge of the substrate 5. What is necessary is just to be comprised. For example, you may be comprised so that the board | substrate 5 may be supported by the surrounding wall part formed so that the perimeter of the opposing part 21 might be surrounded.

  In the above-described embodiment, the case where the protrusion 313 is in contact with the first surface 51 of the substrate 5 has been described as an example, but the protrusion 313 may be close to the first surface 51. In this case, the protrusion 313 is close enough that the first surface 51 of the substrate 5 comes into contact with the protrusion 313 when the substrate 5 is bent by a force applied when the power-feed connector is connected to the connector 7. It is preferable.

  Furthermore, in the above-described embodiment, the case where the protruding portion 313 is provided at a position overlapping the connector 7 in the thickness direction of the substrate 5 has been described as an example, but the protruding portion 313 is the connector 7 in the thickness direction of the substrate 5. It may be provided at a position in the vicinity of. Here, the vicinity of the connector 7 is a position where the protrusion 313 can receive a force applied when the power supply side connector is connected to the connector 7.

  In the above-described embodiment, the sensor element 6 and the infrared light receiving element 8 are mounted on the first surface 51 of the substrate 5, but it is sufficient that at least the sensor element 6 is mounted on the first surface 51. Therefore, only the sensor element 6 may be mounted on the first surface 51, or the sensor element 6 and other electronic components may be mounted on the first surface 51. Furthermore, in the present embodiment, the connector 7 is mounted on the second surface 52 of the substrate 5, but at least the connector 7 may be mounted on the second surface 52. Therefore, the connector 7 and other electronic components may be mounted on the second surface 52.

  In the above-described embodiment, the entire cover 3 is formed of a synthetic resin having a low relative dielectric constant. However, it is sufficient that the electric field coupling between the transmission antenna and the reception antenna can be weakened. May be formed of a synthetic resin having a low relative dielectric constant.

  As is clear from the embodiment described above, the sensor device 1 of the first aspect includes a case 4 and a substrate 5 accommodated in the case 4. The substrate 5 includes at least a first surface 51 on which the sensor element 6 is mounted, and a second surface 52 that is a surface opposite to the first surface 51 and on which at least a connector 7 for receiving power from the outside is mounted. Have The case 4 includes a support 2 that supports the substrate 5 and a cover 3 that is attached to the support 2 so as to cover the substrate 5 supported by the support 2. The support body 2 includes a support portion 211 that supports the substrate 5 at the peripheral edge portion of the substrate 5. The cover 3 is made of synthetic resin, and includes a bottom surface portion 31 that faces the first surface 51 of the substrate 5, and side surface portions that project from the edge of the bottom surface portion 31 toward the substrate 5 (the first side surface portion 32 and the second side surface portion). 33, 34). The bottom surface portion 31 has one or more protrusions 313 that protrude toward the substrate 5 and contact or approach the first surface 51 of the substrate 5 when the cover 3 is attached to the support 2.

  According to the first aspect, one or more protrusions 313 that are in contact with or close to the first surface 51 of the substrate 5 are provided on the bottom surface portion 31 of the cover 3 that faces the first surface 51 of the substrate 5. Therefore, in the state where the substrate 5 is housed in the case 4, even when an external force is applied to the substrate 5 from the thickness direction, the protrusion 313 can suppress the substrate 5 from being bent in the thickness direction. .

  In the sensor device 1 according to the second aspect, in the first aspect, at least one of the one or more protrusions 313 is provided at a position that overlaps the connector 7 in the thickness direction of the substrate 5 or a position that is close to the connector 7. It has been.

  According to the second aspect, since at least one protrusion 313 is provided at a position that overlaps the connector 7 or a position that is in the vicinity of the connector 7, when connecting the external power supply side connector to the connector 7, 5 can be suppressed by the protrusion 313. However, this configuration is not an essential configuration of the sensor device, and all the protrusions 313 may be provided at positions excluding the position overlapping the connector 7 and the position near the connector 7 in the thickness direction of the substrate 5. Good.

  In the sensor device 1 according to the third aspect, in the first or second aspect, the support 2 includes the facing portion 21 that faces the second surface 52 of the substrate 5, and the opposite side of the substrate 5 from the edge of the facing portion 21. Are formed in a box shape with the side wall portions (the first side wall portion 22 and the second side wall portions 23 and 24) protruding in the shape of a box. The facing portion 21 has an exposure hole 212 formed at a portion facing the connector 7 of the substrate 5. The side wall (second side wall 23) has a first opening 231 formed to be continuous with the exposure hole 212. The side surface portion (second side surface portion 33) of the cover 3 has a second opening portion 331 that overlaps a part of the first opening portion 231 when the cover 3 is attached to the support 2.

  According to the third aspect, the first opening portion 231 is provided in the side wall portion (second side wall portion 23) of the support body 2, and the second opening portion 331 is provided in the side surface portion (second side surface portion 33) of the cover 3. Provided. Therefore, even when the depths of the support 2 and the cover 3 are deep, it is possible to connect the external power supply side connector to the connector 7 through the first opening 231 and the second opening 331, and suppress deterioration in workability. be able to. However, this configuration is not an indispensable configuration of the sensor device, and the first opening 231 and the second opening 331 may not be provided if deterioration in workability is not considered.

  The lighting fixture 10 of the fourth aspect includes a sensor device 1 and a fixture body 12 that holds the sensor device 1.

  According to the fourth aspect, by using the sensor device 1 described above, the bending of the substrate 5 when an external force is applied to the substrate 5 accommodated in the case 4 can be suppressed.

DESCRIPTION OF SYMBOLS 1 Sensor apparatus 2 Support body 21 Opposing part 211 Support part 212 Exposed hole 22 1st side wall part (side wall part)
23, 24 Second side wall (side wall)
231 First opening 3 Cover 31 Bottom 313 Projection 32 First side (side)
33, 34 Second side surface (side surface)
331 2nd opening 4 Case 5 Board | substrate 51 1st surface 52 2nd surface 6 Sensor element 7 Connector 10 Lighting fixture 12 Appliance main body

Claims (4)

Case and
A substrate housed in the case,
The substrate has at least a first surface on which a sensor element is mounted, and a second surface on which a connector for receiving power from the outside is mounted, which is a surface opposite to the first surface.
The case includes a support that supports the substrate, and a cover that is attached to the support so as to cover the substrate supported by the support.
The support includes a support portion that supports the substrate at a peripheral edge of the substrate;
The cover is made of a synthetic resin, and is formed in a box shape with a bottom surface portion facing the first surface of the substrate and a side surface portion protruding from the edge of the bottom surface portion toward the substrate side,
The bottom surface portion has one or more protrusions that protrude toward the substrate and contact or approach the first surface of the substrate in a state where the cover is attached to the support. . 2. The sensor device according to claim 1, wherein at least one of the one or more protrusions is provided at a position that overlaps the connector in the thickness direction of the substrate or a position that is close to the connector. . The support is formed in a box shape with a facing portion facing the second surface of the substrate and a side wall portion protruding from the edge of the facing portion to the opposite side of the substrate,
The facing portion has an exposed hole formed in a portion of the substrate facing the connector,
The side wall has a first opening formed to be continuous with the exposed hole,
The said side part of the said cover has the 2nd opening part which overlaps with a part of said 1st opening part in the state which attached the said cover to the said support body. The Claim 1 or 2 characterized by the above-mentioned. Sensor device. The sensor device according to any one of claims 1 to 3,
A lighting fixture comprising: a fixture main body for holding the sensor device.

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