JP6826882B2 - Fire detector, charger and charging system - Google Patents

Description

The present invention relates to a fire detector, a charger and a charging system mounted on the ceiling of a building.

Conventionally, in an automatic fire alarm system, there is a wireless automatic fire alarm system that wirelessly connects a fire receiver and a fire detector. The fire detector used in this equipment is battery-powered, and when the battery life is approaching, the maintenance worker replaces the detector or the battery of the detector. However, there are many fire detectors installed in the building, it is difficult to replace the battery, and the battery is disposable, which is not preferable for the environment.

As a fire detector of a wireless automatic fire alarm system, a rechargeable one as in Patent Document 1 has been proposed.

Japanese Unexamined Patent Publication No. 6-111170

The charging device of Patent Document 1 is used to charge a wireless sensor temporarily installed in a construction area. In Patent Document 1, the wireless sensor is removed after the construction is completed, and charging is performed before it is used for other construction. It is conceivable to use the technique of Patent Document 1 to charge a normal wireless fire detector whose battery life is approaching. For that purpose, the wireless sensor must be removed from the installation location and charged with the charging device of Patent Document 1 for a certain period of time. However, since fire monitoring cannot be suspended, a spare wireless fire detector must be temporarily installed so that fire monitoring can be performed while charging. For that purpose, it was necessary to set and attach the ID code of the wireless fire detector for charging the spare wireless fire detector.
Moreover, when the wireless fire detector is installed on a ceiling higher than the normal ceiling, the replacement work is difficult.

The present invention is for solving the above-mentioned problems, and has the following configurations.

(1) The present invention is a fire detector including a rechargeable secondary battery and a charging unit that takes in electric power from the outside to charge the secondary battery, and the charging unit is the fire. It is a fire detector that can take in power from an external charger with the detector installed on the ceiling.

According to the present invention, it is possible to easily charge a plurality of fire detectors in a high place or the like from an external charger. Then, the conventional work of removing the fire detector, attaching the spare fire detector, removing the spare fire detector, and attaching the fire detector can be omitted. In addition, since a secondary battery is used, the amount of battery waste can be reduced, which is also effective in terms of consideration for the environment. Furthermore, it is possible to charge while the fire detector is operating.

(2) Further, the present invention is the fire detector according to (1), which has an attachment portion to which the charger can be attached from below in the installed state.

According to the present invention, the operator can easily attach the charger to the fire detector at a high place. Further, when charging the fire detector, the charger can be left attached until the end of charging.

(3) Further, in the present invention, the mounting portion is a recess provided on a side surface, which is the fire detector according to (2).

According to the present invention, by locking the charger in the recess, the fire detector and the charger can be connected in a rechargeable state.

(4) Further, in the present invention, a locking portion that can be locked and detached from a fire detector, a battery, and the battery are electrically connected, and power is sent to the fire detector to provide a secondary battery. The charger is provided with a power transmission unit for charging, and has an opening in the center through which the fire detector can enter.

According to the present invention, it is possible to easily charge a plurality of fire detectors in a high place or the like from an external charger. Then, the work of removing the fire detector, attaching the spare fire detector, removing the spare fire detector, and attaching the fire detector can be omitted. In addition, it is possible to charge while the fire detector is operating. Furthermore, since a secondary battery is used, the amount of battery waste can be reduced, which is also effective in terms of consideration for the environment.

(5) Further, the present invention comprises a fire detector installed in a building and a charging device formed by a multicopter provided with a rotating wing, and the fire detector comprises a secondary battery and a locking portion. The charging device has a battery, a locking mechanism, and a power transmission unit, the charging device is made to fly in the vicinity of the fire detector, and the locking mechanism is locked to the locking portion. This is a charging system that connects the charging device to the fire detector, transmits power from the power transmission unit to the charging unit, and charges the secondary battery.

According to the present invention, a plurality of fire detectors in a high place or the like can be easily charged from an external charging device. Then, the conventional work of removing the fire detector, attaching the spare fire detector, removing the spare fire detector, and attaching the fire detector can be omitted. In addition, since a secondary battery is used, the amount of battery waste can be reduced, which is also effective in terms of consideration for the environment. Furthermore, it is possible to charge while the fire detector is operating.

According to the present invention, the fire detector can be easily charged while being operated on the ceiling or the like.

The figure which shows the situation which the charger is attached to the fire detector by the rod type installation device. The figure which shows the situation which the charger is attached to the fire detector by the multicopter type installation device. The figure which shows the state which attached the contact type charger to the contact type charge sensor of Example 1. FIG. An enlarged view of a portion to which a contact type charger is attached in the first embodiment. The figure which shows the state which attached the non-contact type charger to the non-contact type charge sensor of Example 2. FIG.

The manager of the wireless fire detector prevents the fire detector from running out by periodically charging the rechargeable secondary battery of the fire detector mounted on the ceiling in the building. First, the form and work procedure of the charging work according to the present invention will be shown.
<Charging with a rod-shaped installation device>
FIG. 1 shows a situation in which a charger is attached to a fire detector by a rod-shaped installation device. 1 is a wireless fire detector, 2 is a charger, 3 is a rod-shaped installation device, and 31 is a charger stack case. In FIG. 1, three fire detectors 1 are installed on the ceiling 5, and a charger 2 is attached to the fire detector 1 on the left. In the paddle type installation device 3, a plurality of chargers 2 are housed in a charger stack case 31, and a paddle 32 is attached. A secondary battery is provided inside each of the fire detector 1 and the charger 2.

When charging the fire detector 1, the charger 2 is attached to the fire detector 1 installed on the ceiling 5. The operator holds the paddle 32 of the paddle type installation device 3 and aligns the charger 2 loaded on the upper end charger stack case 31 with the position of the fire detector 1. Then, it is pressed from below to project the protruding portion of the charger 2 and attach it to the fire detector 1. In the fire detector 1, the charging lamp lights up when charging by taking in electricity from the charger 2. After confirming that the charging lamp is lit, the operator removes the charger stack case 31 from the charger 2 and moves on to the next installation of the charger 2 on the fire detector 1. In the charger stack case 31 from which the charger 2 has been removed, the next charger 2 rises up and can be attached to the next fire detector 1. When the charger 2 of the charger stack case 31 runs out, it is replenished and the charger 2 is attached to all the fire detectors 1 to be charged.

When charging is completed, the charging lamp of the fire detector 1 goes out. The operator removes the charger 2 after confirming that the charging lamp is off. When removing the charger 2, the operator holds the paddle 32 of the paddle type installation device 3 and presses the charger stack case 31 from under the charger 2. The charger 2 is housed in the charger stack case 31 as well as the protrusion is housed and detached from the fire detector 1. At this time, if there is a charger 2 in the charger stack case 31, the charger 2 is accommodated by shifting downward.

In this way, the paddle-shaped installation device 3 and the charger 2 form a charging device for charging the fire detector 1. In the above embodiment, the charger stack case 31 capable of accommodating a plurality of chargers 2 is attached to the paddle type installation device 3, but the charger stack case 31 capable of accommodating only one charger 2 may be used. , A removable paddle 32 may be attached to the charger 2.

<Charging system using multicopter>
Next, a charging system using a multicopter (drone) will be described. FIG. 2 shows a situation in which a charger is attached to a fire detector by a multicopter type installation device. Similar to FIG. 1, in FIG. 2, three fire detectors 1 are installed on the ceiling 5, and a charger 2 is attached to the fire detector 1 on the left. Reference numeral 4 denotes a multicopter type installation device. In the multicopter type installation device 4, the rotor blade 42 is attached to the charger stack case 41 via the connecting portion 43, and the charger stack case 41 is mounted on the multicopter (drone). A plurality of chargers 2 are housed in the charger stack case 41. FIG. 2 shows a state in which the multicopter type installation device 4 is flying below the central fire detector 1.

When charging the fire detector 1 at the time of periodic inspection or the like, the operator operates the multicopter type installation device 4 to fly in the vicinity of the fire detector 1 and attaches the charger 2 to the fire detector 1. .. The multicopter type installation device 4 moves directly under the fire detector 1 based on the position information, and the charger 2 loaded on the charger stack case 41 of the multicopter type installation device 4 is moved to the position of the fire detector 1. match. Then, by ascending, the charger 2 is pressed from under the fire detector 1 to accommodate the fire detector 1 in the opening provided in the center of the charger 2. Then, the protruding portion of the charger 2 is projected and attached to the fire detector 1. After that, the multicopter type installation device 4 separates the charger 2 from the fire detector 1, moves to the position of the next fire detector 1, and installs a new charger 2 loaded on the charger stack case 41. To do. When the multicopter type installation device 4 installs the charger 2, the operator can confirm that the battery is being charged by the charging lamp of the fire detector 1 indicating that the battery is being charged. When the charger 2 of the charger stack case 41 runs out, replenish it and attach the charger to all the fire detectors 1 to be charged.

When the charging of the fire detector 1 is completed and all the charging lamps of the fire detector 1 are turned off, the operator collects the charger 2. When collecting the charger 2, the multicopter type installation device 4 is operated in the same manner as when the charger 2 is installed, and the charger stack case 41 is pressed against the charger 2 from directly under the fire detector 1 and at the same time, the charger 2 is collected. Remove the protrusion. Then, when the charger 2 is housed in the charger stack case 41, the charger 2 is separated from the fire detector 1 and moved to the position of the next fire detector 1 to collect the next charger 2.

In this way, the multicopter type installation device 4 and the charger 2 form a charging device for charging the fire detector 1. In the above embodiment, the multicopter type installation device 4 is provided with a charger stack case 41 capable of accommodating a plurality of chargers 2, but a charger stack case 41 capable of accommodating only one charger 2. It may be. Further, as a structure in which the charger 2 does not separate from the multicopter type installation device 4, the charging device may be used to charge the multicopter type installation device 4 while being attached to the fire detector 1. If the ceiling on which the fire detector 1 is installed is not high, the operator may manually install the charger 2 without using the installation device.

Next, an example will be given of charging the fire detector 1 by the charger 2.
The first embodiment is a fire detector and a charger that perform contact-type charging. FIG. 3 shows a state in which the contact type charger is attached to the contact type charge sensor of the first embodiment. FIG. 3 (a) is a side view, and FIG. 3 (b) is a view from below. In FIG. 3A, the contact type charger 21 is drawn so that the contact type charge detector 11 can be seen by using only the outer frame of the cross section.

<Contact type charge sensor>
In FIGS. 3A and 3B, 11 is a contact type charge detector which is a fire detector 1 which is charged by a contact type, and 111 is a recess provided in an annular shape around the contact type charge detector 11. 112a is a holding terminal portion, 112b is a contact terminal portion, and 114 is a charging lamp. As shown in FIG. 3B, the contact type charger 21 has a donut shape and has a shape surrounding the contact type charge sensor 11. FIG. 4 is an enlarged view of a portion to which the contact type charger 21 is attached according to the first embodiment, and is a partially enlarged view of FIG. 3A.

The recess 111 is provided around a portion of the contact type charge sensor 11 near the ceiling 5, and the lower surface of the recess 111 is annularly held as a lower contact terminal portion 112a, and the upper portion is cylindrical as an upper contact. The contact terminal portion 112b is arranged like this. The holding terminal portion 112a is provided in a disk shape on the lower end surface of the recess 111 of the contact type charger 11, and is a support portion 113 that supports when the contact type charger 21 is attached. , Functions as one of the charging terminals. The contact terminal portion 112b is provided in a cylindrical shape above the side surface of the recess 111 of the contact type charge sensor 11, and functions as the other charging terminal.

Both the holding terminal portion 112a and the contact terminal portion 112b seamlessly surround the contact type charger 11 so that electricity can be supplied regardless of which direction the terminals of the contact type charger 21 come into contact with each other. There is. A secondary battery (not shown) is built in the contact type charge detector 11, and the holding terminal portion 112a and the contact terminal portion 112b are used as a charging circuit (not shown) for charging the secondary battery. It is connected. The holding terminal portion 112a, the contact terminal portion 112b, and the charging circuit constitute a charging unit that takes in electric power from the outside to charge the secondary battery. A detection sensor unit 115 for detecting a fire is arranged near the center of the bottom of the contact type charge sensor 11. Further, a charging lamp 114 is arranged at a portion off the center of the lower portion of the contact type charging sensor 11 so that the operator can confirm that charging is in progress.

<Contact type charger>
In FIGS. 3 and 4, 211a indicates a protruding holding terminal portion, 211b indicates a protruding contact terminal portion, and 212 indicates an opening portion. The contact type charger 21 has a donut shape having an opening 212 in the central portion. The diameter of the opening 212 is larger than the diameter of the contact type charge sensor 11, and when the contact type charger 21 is attached, the contact type charge detector 11 is housed inside the opening 212. The thickness of the contact type charger 21 is designed so that the sensor unit 115 of the contact type charge sensor 11 is exposed to such an extent that a fire can be detected with the contact type charger 21 attached.

The protrusion holding terminal portion 211a is provided on the upper inner side surface of the opening 212 of the contact type charger 21. The protruding holding terminal portion 211a is housed inside the contact type charger 21, but when the contact type charger 21 is attached to the contact type charge sensor 11, it protrudes inward of the opening 212 and is a contact type. It is locked on the support portion 113 (holding terminal portion 112a) below the recess 111 of the charge sensor 11. A plurality of projecting holding terminal portions 211a are provided so as to surround the contact type charger 11 at the time of attachment, and have a strength capable of holding the contact type charger 21. Then, when the contact type charger 21 is removed, it is housed inside the contact type charger 21 to release the holding. The recess 111 and the support 113 (holding terminal 112a) form a mounting portion for the contact charger 21. The protruding holding terminal portion 211a holds the contact type charger 21 and at the same time is electrically connected to a secondary battery (not shown) in the charger provided inside the contact type charger 21 to detect contact type charging. It functions as a power transmission unit for supplying electric power to the charger 11.

Further, the protruding contact terminal portion 211b is arranged on the upper inner side surface of the opening 212 of the contact type charger 21 and above the protruding holding terminal portion 211a so as not to come into contact with the protruding holding terminal portion 211a. The protruding contact terminal portion 211b is also housed inside the contact type charger 21, and when the contact type charger 21 is attached to the contact type charge sensor 11, it protrudes inward of the opening 212 for contact type charging. It comes into contact with the contact terminal portion 112b of the sensor 11. When the contact type charger 21 is removed, the protruding contact terminal portion 211b is housed inside the contact type charger 21. The protruding contact terminal portion 211b has a cushioning property and is in reliable contact with the contact terminal portion 112b of the fire alarm. The protruding contact terminal portion 211b is electrically connected to a secondary battery in the charger provided inside the contact type charger 21, and functions as a power transmission unit for supplying electric power to the contact type charge detector 11. In FIGS. 3A and 4, the protruding holding terminal portion 211a and the protruding contact terminal portion 211b are at the same position on the circumference of the opening 212, but are further arranged at different positions in the circumferential direction. The structure may be difficult to contact.

<Installation of contact type charger>
When the contact-type charger 21 is attached to the contact-type charge detector 11, the opening 212 of the contact-type charger 21 is aligned with the position of the contact-type charge detector 11 from below. Then, by pushing up the contact type charge detector 11, the contact type charge detector 11 is surrounded by the contact type charger 21. At that time, a trigger (not shown) protruding from the middle of the side surface of the opening 212 in the contact type charger 21 in the vertical direction touches the side surface of the contact type charge sensor 11 and operates. By the operation of this trigger, the protruding holding terminal portion 211a and the protruding contact terminal portion 211b protrude from the upper side surface of the opening 212 in the contact type charger 21 as shown in FIGS. 3A and 4, and the contact type charging detector It overhangs the recess 111 of 11. Then, a plurality of protruding holding terminal portions 211a provided on the contact type charger 21 ride on the holding terminal portion 112a of the contact type charge sensor 11, and the contact type charger 21 is held in the state of FIG. 3A. .. The protruding holding terminal portion 211a contacts the upper surface of the holding terminal portion 112a of the contact type charge sensor 11 to support the contact type charger 21 and at the same time energize. Further, the protruding contact terminal portion 211b contacts the contact terminal portion 112b of the contact type charge sensor 11 and energizes. The pre-charged secondary battery in the charger transmits power via the holding terminal portion 112a and the contact terminal portion 112b, and charging of the secondary battery in the contact-type charge detector 11 is started.

<Charging>
When the secondary battery in the contact-type charge detector 11 is being charged, the charging lamp 114 provided at the bottom of the contact-type charge detector 11 lights up to notify the operator that charging is in progress. The operator can confirm that charging is normally performed by lighting the charging lamp 114, and can move on to the work of attaching the contact-type charger 21 to another contact-type charge detector 11. The contact-type charger 21 does not block the sensor unit 115 on the lower surface of the contact-type charge sensor 11, and can operate the contact-type charge sensor 11 during charging. Therefore, the contact type charge detector 11 can detect a fire even during charging. When charging is complete, the charging lamp 114 lights up in another color to indicate the end of charging, informing the operator that charging is complete.

<Removal>
When collecting the contact type charger 21, a mechanism (not shown) in which the protruding holding terminal portion 211a and the protruding contact terminal portion 211b are housed inside the opening 212 by pushing up the contact type charger 21 from below. Therefore, the contact type charger 21 can be removed. In the first embodiment, the recess 111, the holding terminal portion 112a, and the supporting portion 113 of the contact type charger 11 form a locking portion, and the protruding holding terminal portion 211a of the contact type charger 21 constitutes a locking mechanism.

The second embodiment is a fire detector and a charger that perform non-contact charging. FIG. 5 shows a state in which the non-contact type charger 22 is attached to the non-contact type charge detector 12 of the second embodiment, and a fire occurs in a state where the non-contact type charger 22 is attached to the non-contact type charge detector 12. It is a side sectional view cut so as to pass through the center of a sensor. The shape seen from below is the same as in FIG. 3 (b). The non-contact type charger 22 is annular like the contact type charger 21 of the first embodiment and has a shape surrounding the non-contact type charge sensor 12.

<Non-contact charge detector>
In FIG. 5, 12 is a non-contact type charge sensor 1, which is a non-contact type fire detector 1, 121 is a recess, 122 is a secondary battery, 123 is a power receiving coil, 124 is a support, and 125 is a charging lamp. , 126 are sensing sensor units. The non-contact type charge detector 12 installed on the ceiling 5 from below is provided with an annular recess 121 around a portion close to the ceiling 5, and the lower surface of the recess 121 is a support portion 124. The support portion 124 is supported to hold the non-contact type charger 22 when the non-contact type charger 22 is attached to the non-contact type charge sensor 12.

In the non-contact type charge detector 12, a power receiving coil 123 is provided inside below the recess 121 along the inside of the side plate of the non-contact type charge detector 12, and the circuit and the secondary battery in the non-contact type charge detector 12. It is arranged so as to surround an internal device such as 122. Therefore, power is received regardless of the lateral orientation when the non-contact type charger 22 is attached. The non-contact type charge detector 12 includes a secondary battery 122 and a charging circuit (not shown) inside, receives electric power by the power receiving coil 123, and charges the secondary battery 122 by the charging circuit. The power receiving coil 123 and the charging circuit constitute a charging unit that charges the secondary battery 122 by taking in electric power from the outside. A detection sensor unit 126 for detecting a fire is arranged near the center of the bottom of the non-contact type charge sensor 12. Further, a charging lamp 125 is arranged in a portion off the center of the lower portion of the non-contact type charging detector 12 so that the lower operator can confirm it. The axial direction of the power receiving coil 123 may be the vertical direction at the time of mounting as shown in FIG. 5, but a plurality of coils with the side at the time of mounting at the axial direction are provided inside the side plate of the non-contact type charge detector 12. Is also good.

<Contactless charger>
In FIG. 5, 22 is a non-contact type charger, 221 is a power transmission coil, 222 is an opening, 223 is a protruding holding portion, and 224 is a secondary battery 224 in the charger. The non-contact charger 22 has a donut shape with an opening 222 in the central portion. The diameter of the opening 222 is larger than the diameter of the non-contact charge detector 12, and when the non-contact charger 22 is attached, the non-contact charge detector 12 is housed inside the opening 222. The thickness of the non-contact charger 22 is designed so that the sensor unit 126 of the non-contact charge sensor 12 is exposed to the extent that a fire can be detected with the non-contact charger 22 attached. ing.

The protrusion holding portion 223 is provided on the upper inner side surface of the opening 222 of the non-contact type charger 22. The protrusion holding portion 223 is housed inside the non-contact type charger 22, but when the non-contact type charger 22 is attached to the non-contact type charge sensor 12, it protrudes inward of the opening 222. It is locked to the support portion 124 at the bottom of the recess 121 of the non-contact type charge sensor 12. A plurality of protrusion holding portions 223 are provided so as to surround the non-contact type charge detector 12, and have a strength capable of holding the non-contact type charger 22. Then, when the non-contact type charger 22 is removed, it is housed inside the non-contact type charger 22 and the holding is released. The recess 121 and the support portion 124 form a mounting portion for the non-contact charger 22.

In the non-contact type charger 22, the power transmission coil 221 is arranged inside the non-contact type charger 22 on the inner plate on the opening 222 side. The power transmission coil 221 faces the power receiving coil 123 in the non-contact type charge sensor 12 and transmits electric power to the power receiving coil 123. Further, a secondary battery 224 in the charger and a charging unit (not shown) are built in the non-contact type charger 22 to supply electricity to the power transmission coil 221. The charging unit and the power transmission coil 221 constitute a power transmission unit. The axial direction of the power transmission coil 221 may be the same as the axial direction of the power receiving coil 123 of the non-contact type charge sensor 12, and may be the vertical direction at the time of installation as shown in FIG. 5, but the inside of the non-contact type charger 22. In addition, a plurality of power transmission coils may be provided with the side side at the time of mounting in the axial direction. In that case, a plurality of power receiving coils of the non-contact type charge sensor 12 are also provided with the side at the time of attachment as the axial direction.

<Installation of non-contact charger>
When the non-contact type charger 22 is attached to the non-contact type charge detector 12, the opening 222 of the non-contact type charger 22 is aligned with the position of the non-contact type charge detector 12 from below. Then, by pushing up the non-contact type charger 22, the non-contact type charge sensor 12 is surrounded by the non-contact type charger 22. At that time, a trigger (not shown) protruding from the middle in the vertical direction of the side surface of the opening 222 in the non-contact type charger 22 touches the side surface of the non-contact type charge sensor 12 and operates. By the operation of this trigger, the protrusion holding portion 223 protrudes from the upper side surface of the opening 222 in the non-contact type charger 22 as shown in FIG. 5, and projects into the recess 121 of the non-contact type charge sensor 12. Then, a plurality of protruding holding portions 223 of the non-contact type charger 22 ride on the support portion 124 of the non-contact type charge sensor 12, and the non-contact type charger 22 is held as shown in FIG. At the same time, a current flows from the secondary battery 224 in the charger to the power transmission coil 221 via the charging unit, transmits the electric power to the power receiving coil 123 in the non-contact type charge detector 12, and second in the non-contact type charge detector 12. Charging of the next battery 122 is started. The secondary battery 224 in the charger is precharged.

In the second embodiment, the non-contact type charge detector 12 is provided with a power receiving coil 123 surrounding the internal device, and the non-contact type charger 22 has a power transmission coil inside the non-contact type charger 22 on the inner plate on the opening 222 side. 221 is arranged. Therefore, power can be transmitted and received when the non-contact type charger 22 is attached to the non-contact type charge sensor 12 regardless of which direction the non-contact type charger 22 faces.

<Charging>
When the secondary battery 122 in the non-contact type charge sensor 12 is being charged, the charging lamp 125 provided at the bottom of the non-contact type charge sensor 12 lights up to notify the operator that charging is in progress. The operator can confirm that the charging is normally performed by lighting the charging lamp 125, and can move on to the work of attaching the non-contact type charger 22 to another non-contact type charge sensor 12. The non-contact type charger 22 does not block the detection sensor unit 126 on the lower surface of the non-contact type charge sensor 12, and can operate the non-contact type charge sensor 12 during charging. Therefore, the non-contact type charge detector 12 can detect a fire even during charging. When charging is complete, the charging lamp 125 lights up in another color to indicate the end of charging, informing the operator that charging is complete.

<Removal>
When collecting the non-contact type charger 22, the non-contact type charger 22 is pushed up from below, and the protrusion holding is housed inside the opening 222 (not shown). 22 can be removed. In the second embodiment, the recess 121 and the support portion 124 of the non-contact type charger 12 form a locking portion, and the protruding holding portion 223 of the non-contact type charger 22 constitutes a locking mechanism.

In the first and second embodiments, the charging lamp 114 of the contact type charge sensor 11 and the charging lamp 125 of the non-contact type charge sensor 12 are lit during charging. However, the contact type charger 21 and the non-contact type charge sensor 12 are provided with a lamp for mounting so that light is emitted when all the protruding holding terminal portions 211a and the protruding holding portion 223 are projected, so that the mounting is reliable. It may be done in. Further, the fire detector 1 such as the contact type charge detector 11 and the non-contact type charge detector 12 may be a smoke detector or another fire detector such as a heat detector.

In all the embodiments, a wireless fire detector used in a wireless automatic fire alarm system and communicating with a fire receiver has been described as an example, but a wireless fire powered by a secondary battery has been described. The present invention can be applied to terminal devices other than detectors. Terminal equipment includes, for example, a wireless repeater (repeater) used in a wireless automatic fire alarm system to relay communication between a fire receiver and a wireless fire detector, and a wireless residential use. Fire alarms, and terminal devices such as non-wireless fire detectors.

In the contact type charge sensor 11 and the non-contact type charge sensor 12 in the above Examples 1 and 2, the detection sensor units 115 and 126 are provided below. Then, when the charger 2 is attached to the contact type charge sensor 11 and the non-contact type charge sensor 12, the detection sensor units 115 and 126 are exposed below the charger 2 and continue to monitor the fire. However, when the smoke sensor unit that takes in smoke charges a smoke detector designed near the ceiling 5, the shape of the charger is changed so that the smoke is taken in sufficiently, and fire monitoring is performed during charging. Can be continued. For example, three or more legs are provided above the charger so that the sensor unit is not blocked by the charger when the charger is attached, and smoke is detected from between the legs in the event of a fire. It may be incorporated into. In that case, power transmission / reception may be performed on the lower surface of the smoke detector, such as providing a power receiving coil on the lower surface of the smoke detector and providing a power transmission coil of the charger at a position facing the power receiving coil.

1 Fire detector, 11 contact type charge detector, 111 recess, 112a holding terminal, 112b contact terminal, 113 support, 114 charging lamp, 115 sensing sensor, 12 non-contact charging detector, 121 recess, 122 Rechargeable battery, 123 Power receiving coil, 124 support, 125 charging lamp, 126 sensing sensor 2 charger, 21 contact type charger, 211a protruding holding terminal, 211b protruding contact terminal, 212 opening, 22 non-contact type Charger, 221 Transmission coil, 222 Opening, 223 Protruding holder, 224 Secondary battery in charger 3 桹 type installation device, 31 Charger stack case, 32 棹 4 Multicopter type installation device, 41 Charger stack case, 42 rotary blades, 43 connections 5 ceiling

Claims (4)

Rechargeable secondary battery and
A charging unit that takes in power from the outside to charge the secondary battery,
It is a fire detector equipped with
The charging unit can take in power from an external charger with the fire detector installed on the ceiling .
A fire detector having a mounting portion that allows the charger to be mounted so as not to fall from the bottom in the installed state . The mounting portion is a recess provided in an annular shape around the side surface of the fire detector.
The fire detector according to claim 1. A locking part that can be locked and separated so that it does not fall into the fire detector,
Batteries and
It is provided with a power transmission unit that is electrically connected to the battery and is used to send electric power to the fire detector to charge the secondary battery.
A charger having an opening in the center where the fire detector can enter. The fire detector installed in the building and
A charging device formed by a multicopter with rotor blades,
Consists of
The fire detector has a secondary battery, a locking part, and a charging part.
The charging device has a battery, a locking mechanism, and a power transmission unit.
Fly the charging device near the fire detector and
A charging system in which the charging device is connected to the fire detector by locking the locking mechanism to the locking portion, power is transmitted from the power transmission unit to the charging unit, and the secondary battery is charged.

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