JP2015022586A - Alarm - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an alarm in which a sensor can be easily and quickly installed.SOLUTION: An alarm includes a detection part 20 having a sensor 21 which detects a change in external environment. The sensor 21 is mounted on a detection part storage part 12 of a cabinet 10 through a board member 26. The board member 26 includes a mounting member 27 that guides mounting to an attachment portion 18 of the detection part storage part 12.

Description

  The present invention relates to an alarm device including a detection unit including a sensor that detects a change in an external environment.

  Conventionally, this type of alarm device has a sensor as a detection unit that detects temperature rise and gas to be detected, and a sound emission unit that notifies the change of the external environment detected by the sensor with an alarm sound such as sound It has been known. Since a technique for notifying a change in the external environment with an alarm sound or the like in an alarm device is common, patent literature is not described.

  In the alarm device described above, when the sensor is attached to the attachment site of the housing, the sensor socket pin may be inserted into the attachment site and attached. In many cases, the socket pin is rod-shaped and thin, and may be bent by mistake during the sensor mounting operation. Further, when the sensor is attached to the attachment part during the attachment work, it may be difficult for the sensor itself to block the attachment part and visually recognize the attachment part, and the work may not be performed quickly.

  Accordingly, an object of the present invention is to provide an alarm device capable of easily and quickly mounting a sensor.

  In order to achieve the above object, an alarm device according to the present invention is an alarm device including a detection unit including a sensor that detects a change in an external environment, and the first feature of the alarm device is that the sensor includes a substrate member. The board member is provided with a mounting member that guides the mounting of the detection unit housing part to the attachment site.

  In this configuration, the sensor is mounted on a board member provided with a mounting member. Since the mounting member is configured to guide the mounting of the detection unit housing portion to the mounting site, even if the sensor is difficult to mount to the mounting site, the sensor mounted on the board member provided with the mounting member Is inserted into the detecting portion accommodating portion, the attachment member can be easily attached to the attachment site. Therefore, it is possible to easily and quickly perform the operation of mounting the sensor on the detection unit housing unit.

  The 2nd characteristic structure of the alarm device which concerns on this invention exists in the point which provided the said mounting member eccentrically with respect to the said board | substrate member.

  In this configuration, the mounting position of the sensor mounted on the board member provided with the mounting member is easily recognized so that the mounting position of the mounting member on the board member is decentered with respect to the center of the board member, for example. can do. Therefore, in this structure, the operation | work which mounts a sensor to a detection part accommodating part can be rapidly performed in the state which can recognize the attachment attitude | position of a sensor immediately.

It is an upper surface perspective view which shows the alarm device of this invention. It is a bottom perspective view showing an alarm device of the present invention. It is a disassembled perspective view which shows the alarm device of this invention. It is an exploded view of a detection part. It is an exploded view of a battery accommodating part. It is a principal part exploded view of a detection part accommodating part. It is principal part sectional drawing of a detection part accommodating part.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The alarm device of the present invention detects a change in the external environment such as a change in the concentration of the gas to be detected and notifies the user of the change.

  As shown in FIGS. 1 to 7, the alarm device X of the present invention is an alarm device that provides a sound alarm through a detection unit 20 having a sensor 21 that detects a change in the external environment and an opening 11 formed in the housing 10. The sensor 21 is mounted on the detector housing portion 12 of the housing 10 via the board member 26, and the board member 26 guides the mounting of the detector housing portion 12 to the attachment site 18. Is provided.

  The alarm device X may be any device as long as it is portable. For example, the alarm device X can be configured to be worn on a helmet or clothes. In the present embodiment, a portable alarm device in which a mounting connecting portion 50 is formed, which is a U-shaped clip member formed by folding an elastic metal plate through a curved portion so that it can be mounted on a helmet or the like. Will be described. In the alarm device of the present embodiment, a case where the driving power source is the dry battery 61 housed in the battery housing part 60 will be described.

(Detector)
The alarm device X includes a detection unit 20 that detects a change in the external environment. The detection unit 20 includes a sensor 21 that detects a change in the external environment. As such a sensor 21, a gas sensor such as an oxygen sensor or a CO sensor can be used, but is not limited thereto.

The gas sensor may be in any form as long as it detects the gas to be detected. For example, a known constant potential electrolytic gas sensor can be used as long as the oxygen sensor can detect oxygen gas and the CO sensor can detect carbon monoxide gas generated by incomplete combustion.
This embodiment demonstrates the case where the CO sensor 21 which detects carbon monoxide gas as a to-be-detected gas is provided in the factory etc.

  The detection unit 20 of the present embodiment is configured such that the cylindrical CO sensor 21, the Teflon sheet 23, and the packing 24 are covered with a cylindrical sensor cover 22 in the detection unit storage unit 12 in the housing 10 ( FIG. 4). The sensor cover 22 has an insertion hole 22a so that the gas to be detected can be inserted. As shown in FIGS. 6 to 7, the CO sensor 21 is attached to the detection unit accommodating portion 12 via the substrate member 26. In this embodiment, the CO sensor 21 is mounted on the board member 26 by inserting a plurality (three) of socket pins 21a into the pin insertion holes 26a. Around the substrate member 26, a pair of wing portions 26A is formed. A pair of concave portions 12A corresponding to the shape of the wing portion 26A is formed on the back side of the detection portion accommodating portion 12, and when the substrate member 26 is attached to the detection portion accommodating portion 12, the wing portion 26A and the concave portion 12A. Fit. Since the pair of wing portions 26A are arranged so as not to be positioned in the diametrical direction, the orientation of the substrate member 26 can be easily determined when the wing portion 26A and the recess 12A are fitted. The substrate member 26 can be easily attached to the detection unit accommodating portion 12.

  The board member 26 includes a mounting member 27 that guides the mounting of the detection unit housing 12 to the mounting site 18. In the present embodiment, a case will be described in which the mounting member 27 is inserted through the hole 18a of the mounting portion 18 disposed on the main board 19. In addition, the mounting member 27 may be composed of a plurality (three) of rod-shaped members, but is not limited to such a mode, and may be a mode that guides the mounting of the detection unit housing 12 to the mounting site 18. For example, any configuration such as a rail shape may be used.

  When the CO sensor 21 is attached to the cylindrical detector housing portion 12, the CO sensor 21 is attached to the mounting portion 18 because the attachment portion 18 of the detector housing portion 12 is disposed on the back side of the detector housing portion 12. It may be difficult. In this configuration, the CO sensor 21 is mounted on the substrate member 26 provided with the mounting member 27. The mounting member 27 is configured to guide the mounting of the detection unit housing 12 to the mounting site 18. Moreover, since the direction of the board | substrate member 26 can be determined easily by inserting the wing | blade part 26A in the recessed part 12A as mentioned above, the position with respect to the attachment site | part 18 of the mounting member 27 can also be performed easily. . Therefore, if the CO sensor 21 mounted on the board member 26 including the mounting member 27 is inserted into the detection unit housing portion 12, the mounting member 27 can be easily attached to the mounting portion 18 without looking at the mounting member 27. It becomes possible to install. Therefore, the operation of mounting the CO sensor 21 to the detection unit housing unit 12 can be performed easily and quickly.

  The mounting member 27 is preferably provided eccentric to the substrate member 26. Since the board member 26 is accommodated in the cylindrical detection part accommodating part 12, it is good to comprise in a substantially circular shape. At this time, the mounting member 27 is provided at an eccentric position of the circular substrate member 26, that is, at a peripheral position off the center of the substrate member 26. In this configuration, the position where the mounting member 27 is provided in the substrate member 26 is eccentric with respect to the center of the substrate member 26, and therefore the CO sensor 21 mounted on the substrate member 26 including the mounting member 27. The mounting posture can be easily recognized. Therefore, in this configuration, the operation of mounting the CO sensor 21 to the detection unit housing portion 12 can be quickly performed in a state where the mounting posture of the CO sensor 21 can be immediately recognized.

  Further, a seal ring 25 is disposed on the outer periphery of the sensor cover 22, and a pair of operation protrusions 22 b and a mounting groove 22 c that are rotated when the sensor cover 22 is attached and detached are formed. The pair of operation protrusions 22 b are disposed at positions facing each other on the diameter of the sensor cover 22. The mounting groove 22c engages with the protrusion 17 provided on the back surface of the housing 10 in the detector housing portion 12 (FIG. 4). The mounting groove 22c is configured to guide the protrusion 17 in the circumferential direction after guiding the protrusion 17 in the axial direction of the sensor cover 22. By gripping the operation protrusion 22b and rotating the sensor cover 22, the sensor cover 22 can be displaced to either the mounting position or the detachable position.

  Thus, by covering the CO sensor 21 with the sensor cover 22 and exposing the pair of operation protrusions 22b to the outside of the housing 10, the sensor cover 22 can be detached by rotating the sensor cover 22 when replacing the sensor. In this state, the sensor may be detached after only the sensor cover 22 is slid in the separating direction to be detached. That is, since it is not necessary to open the housing 10 and remove the sensor, the sensor can be easily replaced.

  In the present embodiment, the housing 10 is composed of two separable members (upper member and lower member). For example, water or the like enters the inside of the housing 10 around the lower member. You may provide the sealing member 80 which can prevent doing. The seal member 80 is disposed along the periphery of the lower member, but is configured to bend so as to follow the curved surface shape of the detection unit storage unit 12 at a portion where the detection unit storage unit 12 is located. Good. The seal member 80 may be formed of, for example, a thermoplastic resin, but is not limited thereto.

(Sound emission part)
The sound emitting unit 30 receives an alarm signal from the calculation means when the calculation means (not shown) described later determines that each sensor has continuously detected a CO concentration equal to or higher than the alarm level, for example. To emit.

  In the present embodiment, a piezoelectric diaphragm 31 is disposed in the sound emitting unit 30, and a sound is generated by vibrating the piezoelectric diaphragm 31, and the sound is output as an alarm through the opening 11 formed in the housing 10. The case where it originates in will be described. The piezoelectric diaphragm 31 may be a known piezoelectric diaphragm provided that a piezoelectric element (for example, a piezoelectric ceramic thin plate) polarized in the thickness direction is bonded to a metal plate and flexural vibration of the diaphragm is used as a sound source. Can be used. The piezoelectric element has a property that it contracts when a voltage in the same direction as the polarization direction is applied and expands when a voltage in the opposite direction is applied, and when the expansion / contraction change of the piezoelectric element is transmitted to the metal plate, the fixed metal plate Causes a bending phenomenon and generates sound waves.

  The piezoelectric diaphragm 31 of the present embodiment is a circular thin film, and the periphery thereof is attached to a circular support portion formed on the back surface of the housing 10 with an adhesive, and parts other than the periphery are arranged so as to vibrate. It is set up.

(Sound emission cover member)
The sound emitting part lid member 40 is attached to the housing 10 so as to cover the opening 11, and forms a slit part 41 that releases sound from the sound emitting part 30.

  In the present embodiment, the slit portion 41 shows a case where six arc-shaped slits are arranged in a circular shape, but the shape, arrangement mode and number of installations of the slits are not limited to this mode. . The slit portion 41 emits an alarm sound emitted from the opening 11 to the outside.

  In the present embodiment, six arc-shaped slits are arranged in a circular shape, and each is arranged so that the opening 11 is positioned at the center of the circle. In this configuration, since each slit can be disposed at an equal distance from the opening 11, the sound (volume) emitted from each slit can be made equal.

  The sound emitting unit lid member 40 is mounted so as to form a space between the housing 10 and the sound emitting unit lid member 40. The space may be configured to resonate when the sound emitted from the sound emitting unit 30 reaches the space via the opening 11. In the present embodiment, circular protrusions 45 are formed on the back surface of the sound emitting unit lid member 40, and circular protrusions 16 that are not opposed to the protrusions 45 are formed on the surface of the housing 10 in the sound emitting unit 30. 45 define the shape of the space. When the space has such a shape, the sound emitted from the sound emitting unit 30 resonates in the space, and the volume and sound quality can be changed. Therefore, by changing the shape of the protrusions 16 and 45 in various ways, it is possible to emit sounds with various volumes.

  Further, in the space S, for example, a sound pressure adjusting member may be installed at the periphery of the space defined by the protrusions 16 and 45 (a space facing the slit portion 41). Since the peripheral space is filled by providing the sound pressure adjusting member, the sound pressure can be changed. Thus, since the space in which the sound pressure adjusting member is provided is formed, for example, the sound pressure can be suppressed according to the request of the site where the alarm device X is used. The sound pressure adjusting member is not limited as long as it is a member that can be fitted into the peripheral space and change the sound pressure. For example, a washer-like rubber plate can be used. Also, the sound quality and volume can be similarly changed by attaching a seal member to the slit portion 41.

  A plurality of these protrusions 16 and 45 can be provided. In this embodiment, the circular protrusion 16 is configured to be a triple circle. Since the circular protrusion 16 is formed around the opening 11, it is possible to prevent water, dust, or the like that has entered through the slit 41 from entering the inside of the housing 10 from the opening 11.

  The sound emitting part lid member 40 is formed with a drain hole 42 for draining water accumulated in the sound emitting part 30 below the alarm X when the alarm device X is installed.

  The sound emitting unit lid member 40 includes an insertion protrusion 43 that is slidably engaged with the housing 10 and a fitting claw 44 that is fitted to the housing 10.

  The insertion protrusion 43 is formed so as to protrude on the same plane as the base 40 a from the periphery of the base 40 a of the circular sound emitting part lid member 40, and is slid and moved toward the recess 14 provided in the housing 10. As a result, the insertion protrusion 43 and the recess are fitted. The fitting claw portion 44 is formed so as to protrude from the inner surface of the sound emitting portion lid member 40 substantially perpendicularly to the base body 40a and is fitted so as to be fitted into an engaging portion provided in the housing 10. To do. The insertion protrusion 43 and the fitting claw 44 in the present embodiment are disposed on the diameter of the circular sound emitting part lid member 40.

(Calculation means)
The calculation means includes a concentration calculation unit (not shown) that calculates the CO concentration based on the output of the above-described CO sensor 21 that detects carbon monoxide gas. Further, when the CO sensor 21 continuously detects the CO concentration equal to or higher than the alarm level, the calculation means controls to send an alarm signal to the sound emitting unit 30 and to issue an alarm by the sound emitting unit 30.
The alarm device X of the present invention is provided with a display unit 70 for displaying the result of the calculation means on the housing 10 so that the CO concentration and the like can be displayed.

(Battery compartment)
The battery accommodating unit 60 accommodates a dry battery 61 that is a driving power source for the alarm device X. The battery housing part 60 is a cylindrical housing space that houses a cylindrical dry battery 61. The dry battery 61 is slid and accommodated with respect to the battery accommodating part 60, and the battery accommodating part 60 is closed by the battery accommodating part cover member 62 in this state. The battery housing portion lid member 62 of the present embodiment includes a gripping portion 62a and a mounting groove 62b formed with irregularities around the periphery, and by gripping the gripping portion 62a and rotating the battery housing portion lid member 62, Mounted on the battery housing 60. That is, in this configuration, it is not necessary to open the housing 10 and insert / remove the dry battery 61, so that the battery can be easily replaced.

  INDUSTRIAL APPLICABILITY The present invention can be used for an alarm device that includes a detection unit that includes a sensor that detects a change in the external environment and a sound emission unit that issues a sound alarm through an opening formed in the housing.

X alarm device 10 housing 11 opening 12 detection unit accommodation unit 18 attachment site 20 detection unit 21 sensor 30 sound emission unit 25 substrate member 26 mounting member

Claims (2)

An alarm device having a detection unit equipped with a sensor for detecting a change in the external environment,
The sensor is attached to the detection unit housing portion of the housing via the substrate member,
The said board | substrate member is an alarm device provided with the mounting member which guides mounting | wearing with respect to the attachment site | part of the said detection part accommodating part.   The alarm device according to claim 1, wherein the mounting member is provided eccentric to the substrate member.

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