Fuming device and control system

Abstract

A fuming device (1A) is provided with a long cylindrical case, an igniter (40) attached to one end of the case, and a smoke agent (50). The housing has a peripheral wall section (10) in which one end and the other end in the axial direction are closed, and includes a drug storage chamber (S) therein. The igniter (40) includes a heating element that generates heat by energization, and an ignition powder that is ignited by the heat generated by the heating element. The smoke agent (50) is housed in the agent housing chamber (S), and generates smoke by being ignited and combusted by the operation of the igniter (40). A plurality of discharge holes (11) for discharging smoke generated by combustion of the smoke agent (50) to the outside are provided in both the circumferential direction and the axial direction of the housing in a peripheral wall part (10) that defines a portion of the medicine accommodating chamber (S).

Description

TECHNICAL FIELD

[0001] The present application relates to a smoking device and a control system provided with the same. BACKGROUND

[0002] As a method of notifying generation of some abnormality, a smoking device is sometimes used. As the smoking device, generally, a smoking device called a smoking cartridge is widely popularized, which is provided in a size easy to move, and is used by a user holding it in a hand or in a state of placing it on a floor surface or the like.

[0003] On the other hand, unlike the above-described smoking cartridge, a smoking device used in a state of being installed in advance in a main body of a building or an article or the like is also known. As a document disclosing such a smoking device, for example, there are Japanese Patent Application Publication No. 2006-143498 (Patent Literature 1) or Japanese Patent Application Publication No. 2014-126230 (Patent Literature 2), Japanese Patent Application Publication No. 2017-78543 (Patent Literature 3), Japanese Patent Application Publication No. 2017-78961 (Patent Literature 4), and the like.

[0004] PRIOR ART DOCUMENT PATENT LITERATURE Patent Literature 1: Japanese Patent Application Publication No. 2006-143498; Patent Literature 2: Japanese Patent Application Publication No. 2014-126230; Patent Literature 3: Japanese Patent Application Publication No. 2017-78543; Patent Literature 4: Japanese Patent Application Publication No. 2017-78961. SUMMARY

[0005] PROBLEMS TO BE SOLVED BY THE INVENTION Here, in the smoking devices disclosed in the above-described Patent Literatures 1 to 4, an ejection hole for ejecting smoke generated inside the smoking device to the outside is provided only on one end side in the axial direction of the smoking device. Therefore, in these smoking devices, there is a problem that a deviation is generated in the direction of ejection of the smoke with respect to the surrounding space, and thus it is difficult to diffuse the smoke sufficiently to the surroundings due to the setting state of the smoking device.

[0006] The present application is made in view of the above-described aspect, and aims to provide a smoking device capable of diffusing smoke regardless of a setting state and a control system provided with the same.

[0007] MEANS FOR SOLVING THE PROBLEMS The smoking device according to the present application includes a long cylindrical housing, an igniter assembled to one end of the housing, and a smoking agent. The housing has a peripheral wall portion whose one end portion and the other end portion in the axial direction are closed, and includes a medicament accommodating chamber in the inside. The igniter includes a heating body that generates heat by being electrified, and an ignition agent that ignites by the heat generated by the heating body. The smoking agent is accommodated in the medicament accommodating chamber, ignites and burns by the operation of the igniter, and thereby generates smoke. In the smoking device according to the present application, a plurality of ejection holes for ejecting the smoke generated by the burning of the smoking agent toward the outside are provided in the peripheral wall portion that defines a portion of the medicament accommodating chamber, in both the circumferential direction and the axial direction of the housing.

[0008] Effects of the Invention According to the present application, it is possible to provide a smoking device capable of diffusing smoke regardless of the setting state, and a control system including the same. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is a schematic view of a car in which a control system including a smoking device according to the present application is installed, as viewed from the front side.

[0010] Figure 2 is a schematic view of a car in which a control system including a smoking device according to the present application is installed, as viewed from the side.

[0011] Figure 3 is a view for explaining a hardware configuration of each device that constitutes a control system according to the present application.

[0012] Figure 4 is a side view and a plan view of a smoking device according to the present application.

[0013] Figure 5 is Figure 4 a cross-sectional schematic view of a smoking device shown in

[0014] Figure 6 is Figure 5 an enlarged view of an igniter shown in

[0015] Figure 7 is a flowchart for explaining a flow of processing performed by a control system shown in Figure 1

[0016] Figure 8 is a schematic view of a state in which a smoking device according to the present application has operated, as viewed from the front side of a car.

[0017] Figure 9 is a schematic view of a state in which a smoking device according to the present application has operated, as viewed from the side of a car. ​

[0018] Figure 10 is a cross-sectional view of a smoking device to which a modification is applied.

[0019] Figure 11 is a table showing the composition, etc. of each sample used in the verification test.

[0020] Figure 12 is a graph showing the measurement results of the verification test.

[0021] Figure 13 is a graph showing the measurement results of the verification test. DETAILED DESCRIPTION

[0022] Hereinafter, an embodiment of the present application will be described in detail with reference to the drawings. The embodiment shown below exemplifies a case where the present application is applied to a control system installed in a vehicle loaded on a car carrier and a smoking device provided thereto. Further, in the embodiment shown below, the same or common parts are denoted by the same symbols in the drawings, and the description thereof will not be repeated.

[0023] (Embodiment) <A. Configuration of Control System> Figure 1 and Figure 2 are schematic views of a vehicle on which a control system provided with a smoking device according to the embodiment is installed, as viewed from the front side and the side side, respectively. Figure 3 is a diagram for explaining the hardware configuration of each device constituting the control system according to the embodiment. First, with reference to Figures 1 to 3 , an outline of the control system 101 provided with the smoking device 1A according to the embodiment will be described.

[0024] As shown in Figure 1 and Figure 2 , in the cargo room 902 of the car carrier, a plurality of vehicles 200 are closely arranged in a manner that they are positioned at intervals of about 20 cm from each other around the periphery. The ceiling 902a of the cargo room 902 is configured in a manner that it can be raised and lowered in correspondence with the height of the vehicles 200. As one example, the distance between the floor 902b of the cargo room 902 and the ceiling 902a (i.e., the ceiling height) is set to about 2 m. In the cargo room 902, a plurality of crew members CR (refer to Figure 3 , Figure 8 and Figure 9 ) perform a tour monitoring, etc.

[0025] In the car carrier, an automatic fire notification device is provided so that fire extinguishing activities can be promptly performed when a fire occurs in the ship. The automatic fire notification device has a plurality of sensors 301 and a receiver (not shown). The sensors 301 and the receiver are connected by wiring.

[0026] Multiple sensors 301 are positioned at predetermined intervals on the ceiling 902a. Each sensor 301 is a so-called point-type photoelectric sensor for detecting smoke. The point-type photoelectric sensor has a light-emitting part and a light-receiving part internally. Light emitted from the light-emitting part collides with smoke particles entering the sensor and is diffusely reflected. The diffusely reflected light is then sensed by the light-receiving part. The sensor operates when the light-receiving part senses the light.

[0027] The receiver is, for example, located in the wheelhouse. When sensor 301 is activated, the receiver notifies the crew (CR) of the fire by receiving signals transmitted from sensor 301. The receiver mainly includes: a monitor for displaying the alarm and the location of the activated sensor 301; a speaker for using sound to announce the alarm; and an operating unit.

[0028] Each vehicle 200, located in the cargo compartment 902, has a built-in battery 201 for supplying electricity to a motor that serves as a drive source. The battery 201 is, for example, a lithium-ion battery.

[0029] The battery 201 and the vehicle 200 containing the battery 201 are potentially flammable. More specifically, in cases of battery 201 deterioration, the internal electrolyte oxidizes, producing flammable gases. If an impact is applied to the battery 201 while flammable gases are present, the battery 201 may sometimes catch fire. Furthermore, the battery 201 may also catch fire due to defects arising during its manufacturing process or due to overcharging.

[0030] like Figure 3 As shown, the control system 101 includes a smoke generating device 1A, a sensor 120, a control device 130, and a power supply 140. In the control system 101, the smoke generating device 1A, sensor 120, control device 130, and power supply 140 are integrated into a housing 170. That is, in this embodiment, the control system 101 is configured as a single unit.

[0031] The smoke generating device 1A is a device that emits smoke to activate the sensor 301. The detailed configuration of the smoke generating device 1A will be described later.

[0032] Sensor 120 is a sensor separately disposed from the sensor 301 of the automatic fire notification device. In this embodiment, sensor 120 detects the temperature of the vehicle 200 as a state of the vehicle 200. Specifically, sensor 120 detects the surface temperature of the bottom surface 200a of the vehicle 200. More specifically, sensor 120 detects the surface temperature of the portion of the bottom surface 200a located near (more specifically, directly below) the battery 201.

[0033] In a case where the battery 201 has generated heat, the heat is transferred from the battery 201 to the bottom surface 200a. Therefore, by detecting the surface temperature of the bottom surface 200a by the sensor 120, it is possible to detect abnormal heat generation of the battery 201.

[0034] As the sensor 120, a temperature sensor is used. In the temperature sensor, there are two types of contact type and non-contact type. As the contact type temperature sensor, a thermocouple, a platinum resistance thermometer, a thermistor thermometer, a bimetallic thermometer, a liquid full type thermometer, a mercury thermometer, and the like can be listed. The non-contact type temperature sensor measures the temperature by measuring infrared rays emitted from an object. As the non-contact type temperature sensor, a thermal type (non-cooled type) or a quantum type (cooled type) can be listed.

[0035] In the present embodiment, as the sensor 120, a non-contact type temperature sensor is used. Thereby, regardless of the shape of the bottom surface 200a, it is possible to detect the surface temperature of the bottom surface 200a.

[0036] From the viewpoint of having redundancy in part or as a whole, in the control system 101, it is preferable to provide a plurality of sensors 120. Thereby, even in a case where one sensor 120 has failed, the other sensors 120 can perform the function instead.

[0037] The control device 130 acquires temperature information showing the temperature detected by the sensor 120 from the sensor 120 every predetermined control period T (for example, every 1 second). The control device 130 causes the smoke emitting device 1A to emit smoke in a case where the temperature of the automobile 200 detected by the sensor 120 satisfies a predetermined condition. More specifically, the control device 130 causes smoke to be emitted from the smoke emitting device 1A in a case where the surface temperature of the bottom surface 200a of the automobile 200 detected by the sensor 120 is equal to or higher than a set temperature V1.

[0038] In a case where abnormal heat generation has occurred in the battery 201, the battery 201 gradually increases in temperature from the temperature in a state where no abnormality has occurred, and when a predetermined temperature has been reached, thermal runaway occurs and a fire breaks out. Therefore, in the present embodiment, the control device 130 sets the surface temperature of the bottom surface 200a when the predetermined temperature lower than the temperature at which a fire breaks out has been reached as the set temperature V1. Thereby, the control device 130 can cause smoke to be emitted from the smoke emitting device 1A at a stage before the battery 201 catches fire. In the present embodiment, the set temperature V1 is set to 80°C. Furthermore, the set temperature V1 is not limited to 80°C, and can be appropriately set.

[0039] The control device 130, as a main constituent element, has a CPU (Central Processing Unit) that executes a program, a ROM (Read Only Memory), a RAM (Random Access Memory), and a flash memory. By the CPU executing the program, a process of causing the smoking device 1A to emit smoke is realized.

[0040] In detail, the CPU performs a predetermined operation based on temperature information obtained from the sensor 120. The ROM and the flash memory non-volatile store data. The flash memory stores the above program. The RAM volatile stores data generated by the CPU executing the program. The respective constituent elements of the control device 130 are connected to each other through a data bus.

[0041] Power is supplied to the smoking device 1A, the sensor 120, and the control device 130 by a power supply 140 built in the frame 170. In the present embodiment, as the power supply 140, a primary battery is used. The primary battery is inexpensive and easily available worldwide. In addition, the power supply 140 can be any one of a primary battery, a secondary battery, and a power supply supplied from a shipboard power supply via an AC / DC (Alternating Current / Direct Current) converter that converts alternating voltage into direct voltage or a USB (Universal Serial Bus) cable.

[0042] The frame 170 has a substantially rectangular parallelepiped shape. The frame 170 is disposed in abutment against a portion of the bottom surface 200a of the automobile 200 positioned in the vicinity of the battery 201. In detail, the frame 170 has a magnet (not shown) in a portion of its outer lateral surface opposite the bottom surface 200a. The frame 170 is attached to the bottom surface 200a by the magnetic force of the magnet.

[0043] In addition, the frame 170 is not limited to a substantially rectangular parallelepiped shape and can be appropriately changed. In addition, the method of attaching the frame 170 to the bottom surface 200a is not limited to the magnetic force of the magnet. For example, the frame 170 can be attached to the bottom surface 200a by the adhesive force of an adhesive provided in a portion of its outer lateral surface opposite the bottom surface 200a.

[0044] The frame 170 is preferably constituted in a manner that does not hinder the diffusion of smoke emitted from the smoking device 1A built in the frame 170. Therefore, the frame 170 is preferably provided, for example, with a plurality of through-holes on its entire surface or constituted in a mesh shape on its entire surface, and the like.

[0045] <B. Configuration of the Smoking Device> Figure 4(A) and Figure 4 (B) are a side view and a bottom view, respectively, of a smoking device to which the embodiment is applied. Figure 5 (A), Figure 5 (B), and Figure 5 (C) are cross-sectional views of the smoking device taken along VA-VA line, VB-VB line, and VC-VC line, respectively, shown in Figure 4 Figure 6 is an enlarged view of the igniter shown in Figure 5 is an enlarged view of the igniter shown in Figures 4 to 6 The configuration of the smoking device 1A to which the embodiment is applied will be described next with reference to

[0046] As shown in Figures 4 to 6 , the smoking device 1A to which the embodiment is applied has an elongated cylindrical outer shape, and has an elongated cylindrical housing with one end portion and the other end portion positioned in the axial direction being closed. The housing includes a housing main body 10, a retainer 20, and a closing member 30.

[0047] The housing composed of the housing main body 10, the retainer 20, and the closing member 30 includes a medicament accommodation chamber S in the inside. In the medicament accommodation chamber S, an igniter 40, a smoking agent 50, a coil spring 60, and the like as internal constituent parts are accommodated.

[0048] The housing main body 10 constitutes a peripheral wall portion of the housing. The housing main body 10 is composed of an elongated cylindrical member having openings formed at both ends in the axial direction.

[0049] The retainer 20 is composed of a cylindrical member having a through portion 21 extending in the same direction as the axial direction of the housing main body 10. The retainer 20 has a ring-shaped groove portion 22 for caulking fixation described later on the outer peripheral surface thereof. The ring-shaped groove portion 22 is formed on the outer peripheral surface of the retainer 20 in such a manner as to extend in the circumferential direction.

[0050] The closing member 30 is composed of a disc-shaped member having a predetermined thickness. The closing member 30 has a ring-shaped groove portion 31 for caulking fixation described later on the peripheral surface thereof. The ring-shaped groove portion 31 is formed on the peripheral surface of the closing member 30 in such a manner as to extend in the circumferential direction.

[0051] The housing main body 10 can be composed of a member made of metal such as stainless steel or steel, an aluminum alloy, a stainless steel alloy, or the like, or can be composed of a press-formed product formed in a cylindrical shape by press working a rolled steel sheet represented by SPCE. In addition, the housing main body 10 can be composed of an electric resistance welded steel pipe represented by STKM.

[0052] ​In particular, in the case where the housing main body 10 is constituted by a press-formed product of a rolled steel plate or an electric resistance welded steel pipe, the housing main body 10 can be formed inexpensively and easily compared to the case where a member made of a metal such as stainless steel or steel is used, and a large degree of weight reduction can be achieved.

[0053] The retainer 20 and the closure member 30 are constituted by a member made of a metal such as stainless steel or steel, an aluminum alloy, a stainless steel alloy, or the like.

[0054] The retainer 20 is fixed to the housing main body 10 in a manner of closing one open end in the axial direction of the housing main body 10. In detail, in a state where the retainer 20 is inserted into the aforementioned one open end of the housing main body 10, a portion of the housing main body 10 corresponding to the annular groove portion 22 provided to the outer circumferential surface of the retainer 20 is reduced in diameter toward the inner side in the radial direction and engaged with the annular groove portion 22, so that the retainer 20 is caulkingly fixed with respect to the housing main body 10. Thus, one end portion in the axial direction of the housing is constituted by the retainer 20.

[0055] The closure member 30 is fixed to the housing main body 10 in a manner of closing the other open end in the axial direction of the housing main body 10. In detail, in a state where the closure member 30 is inserted into the aforementioned other open end of the housing main body 10, a portion of the housing main body 10 corresponding to the annular groove portion 31 provided to the circumferential surface of the closure member 30 is reduced in diameter toward the inner side in the radial direction and engaged with the annular groove portion 31, so that the closure member 30 is caulkingly fixed with respect to the housing main body 10. Thus, the other end portion in the axial direction of the housing is constituted by the closure member 30.

[0056] The caulking fixation is a caulking fixation called omnidirectional caulking in which the housing main body 10 is reduced in diameter toward the inner side in the radial direction substantially equally. By performing the omnidirectional caulking, the caulking portions 12, 13 are provided to the housing main body 10. Thus, the caulking portions 12, 13 are in direct contact with the annular groove portions 22, 31, respectively. As a result, generation of a gap between them is prevented.

[0057] Further, the assembly configuration of the retainer 20 and the closure member 30 with respect to the housing main body 10 is not limited to the aforementioned assembly configuration, and other assembly configurations can be adopted. In addition, the housing main body 10 and the closure member 30 can not be separated, but can be constituted by one member having a bottomed cylindrical shape.

[0058] The igniter 40 is assembled to the aforementioned one end portion in the axial direction of the housing by being supported by the retainer 20. The igniter 40 is disposed in a manner of facing the space inside the housing. The igniter 40 is used to cause the smoking agent 50 to burn.

[0059] As Figure 6As shown, the igniter 40 includes an ignition portion 41 and a pair of terminal pins 42. The ignition portion 41 includes an ignition agent 41a, a plug 41b, and a cup 41c. The ignition agent 41a is housed in the ignition portion 41 by being disposed in a space defined by the plug 41b and the cup 41c.

[0060] Inside the ignition portion 41, a resistance body (bridge wire) is installed in a manner connected to the pair of terminal pins 42. The ignition agent 41a is filled into the ignition portion 41 in a manner surrounding the resistance body or in a manner in contact with the resistance body. The resistance body is used as a heat generating body that generates heat due to being energized.

[0061] As the resistance body, a nichrome wire or a resistance wire made of an alloy including platinum and tungsten, or the like is generally used. As the ignition agent, ZPP (zirconium-potassium perchlorate), ZWPP (zirconium-tungsten-potassium perchlorate), lead trinitroresorcinate, or the like is generally used. Further, the cup 41c provided to the ignition portion 41 includes a metal cup.

[0062] A predetermined amount of current supplied from the power supply 140 flows through the resistance body via the terminal pins 42 by a predetermined process by the control device 130. By the current flowing through the resistance body, Joule heat is generated, and thus the resistance body generates heat, and thus the ignition agent 41a ignites. Hot particles generated due to the combustion cause the cup 41c in which the ignition agent 41a is housed to crack. The time from the current flowing through the resistance body to the igniter 40 operating is generally 2 milliseconds or less in the case where a nichrome wire is used for the resistance body.

[0063] Further, the igniter 40 is fixed to the holder 20 by the caulking portion 23 provided to the holder 20. More specifically, the holder 20 has the caulking portion 23 for caulk fixing the igniter 40 at an axial direction end portion of one side of a space facing the inside of the case, and the caulking portion 23 described above is caulked in a state where the igniter 40 is inserted into the through portion 21 and abuts against a wall portion of a prescribed portion of the through portion 21 of the holder 20, and thus the igniter 40 is clamped and fixed by the holder 20.

[0064] Thus, the igniter 40 is assembled to the holder 20 in a manner in which the ignition portion 41 thereof projects toward the medicament housing chamber S. Therefore, when the igniter 40 operates, the ignition agent 41a ignites, and thus cracking is generated in the cup 41c, and the cup 41c opens in conjunction with the cracking.

[0065] At the end portion in the axial direction of the holder 20 which is exposed to the outside, a recessed portion 24 which is continuous with the through portion 21 described above is provided. The recessed portion 24 forms a female connector portion which receives a male connector (not shown) of a wire harness for wiring the igniter 40 to a control unit (not shown). Inside the recessed portion 24, a portion near the tip of the terminal pin 42 of the igniter 40 is exposed and positioned. The male connector is inserted into the recessed portion 24 which is the female connector portion. Thereby, electrical conduction of the core wire of the wire harness and the terminal pin 42 is achieved.

[0066] As shown in Figs. 1 and 2, the aerosol-generating device 1A includes a housing 10, an igniter 40, an aerosol-generating agent 50, and a closure member 30. Figure 4 Figure 5 As shown in Figs. 1 and 2, the aerosol-generating device 1A includes a housing 10, an igniter 40, an aerosol-generating agent 50, and a closure member 30.

[0067] The aerosol-generating agent 50 is an agent which generates smoke by being ignited and combusted by heat particles generated by the operation of the igniter 40. The aerosol-generating agent 50 is configured as a shaped body including a fuel and an oxidizer.

[0068] As the fuel, for example, a non-paraffin fuel such as sucrose or a tetrazole derivative containing boron is appropriately used. In addition, the fuel is not particularly limited to a non-paraffin fuel, and a paraffin fuel can also be used. In this regard, details are described in the modification examples related to the present embodiment. As the oxidizer, for example, potassium nitrate or the like is appropriately used.

[0069] Among the shapes of the shaped body of the aerosol-generating agent 50, there are various shapes such as a granular shaped body, a pellet-shaped shaped body, a cylindrical shaped body, and a disc-shaped shaped body. Among the cylindrical shaped bodies, a perforated shaped body having a through hole in the inside of the shaped body, such as a single-hole cylindrical shape or a multi-hole cylindrical shape, is also used. These shapes are preferably appropriately selected in correspondence with the use environment of the aerosol-generating device 1A or the like. In addition, it is preferable that, in addition to the shape of the aerosol-generating agent 50, the size or the filling amount of the shaped body is appropriately selected in consideration of the linear combustion speed, the pressure exponent, or the like of the aerosol-generating agent 50.

[0070] In the present embodiment, two types of aerosol-generating agents are used as the aerosol-generating agent 50. More specifically, a pellet-shaped first aerosol-generating agent 51 and a cylindrical second aerosol-generating agent 52 are used as the aerosol-generating agent 50.

[0071] The second aerosol-generating agent 52 is disposed in the agent accommodation chamber S in abutment with the closure member 30. The first aerosol-generating agent 51 is filled and disposed in a space in the agent accommodation chamber S sandwiched by the igniter 40 and the second aerosol-generating agent 52. The first aerosol-generating agent 51 and the second aerosol-generating agent 52 are disposed in abutment with each other in the axial direction of the housing. The first aerosol-generating agent 51 and the igniter 40 are disposed in proximity to each other in the axial direction of the housing.

[0072] ​In a space in the medicament accommodating chamber S positioned more on the holder 20 side than the first smoking agent 51, a coil spring 60 is arranged. More specifically, the coil spring 60 is interposed between the end portion in the axial direction of the housing (i.e., the holder 20) and the first smoking agent 51 in a manner of surrounding the ignition portion 41 of the igniter 40 having a substantially cylindrical outer shape. The coil spring 60 is formed by bending processing of a metal wire. The coil spring 60 includes a diameter-expanded portion 61 and a pressing portion 62.

[0073] The diameter-expanded portion 61 is configured by spirally winding the metal wire in a manner that the inner diameter thereof increases as it goes to the first smoking agent 51 side. Thus, the diameter-expanded portion 61 has a hollow substantially conical frustum shape as a whole. The outer diameter of the end portion of the diameter-expanded portion 61 on the first smoking agent 51 side is configured to be substantially the same as or slightly smaller than the inner diameter of the housing main body 10.

[0074] The pressing portion 62 is positioned at the end portion of the diameter-expanded portion 61 on the first smoking agent 51 side. The pressing portion 62 is configured in a manner that it has a substantially circular plate shape as a whole, for example, by arranging the metal wire substantially in parallel at a predetermined interval or by arranging the metal wire in a spiral shape at a predetermined interval. The pressing portion 62 is in contact with the first smoking agent 51.

[0075] Here, the coil spring 60 is set to be in a compressed state by being sandwiched by the holder 20 or / and the igniter 40 and the first smoking agent 51. Thus, the first smoking agent 51 is elastically urged toward the closing member 30 side by the coil spring 60 together with the second smoking agent 52. Thus, the first smoking agent 51 and the second smoking agent 52 are fixed inside the medicament accommodating chamber S. Thus, by being thus configured, it is possible to prevent the smoking agent 50 composed of the shaped body from being pulverized by vibration or the like.

[0076] In addition, when the coil spring 60 is assembled, it is also possible to absorb dimensional deviations of various constituent parts accommodated inside the housing by the coil spring 60 being compressed by being sandwiched by the holder 20 or / and the igniter 40 and the smoking agent 50.

[0077] Further, by appropriately setting the length in the axial direction of the coil spring 60, it is also possible to separate the igniter 40 assembled at the end portion of the housing from the first smoking agent 51 in a manner that the distance therebetween is appropriately ensured. Thus, when the igniter 40 operates, the cracking of the cup body 41c of the ignition portion 41 is not hindered by the first smoking agent 51, and thus it is possible to make the first smoking agent 51 and the second smoking agent 52 ignite early and reliably.

[0078] The housing main body 10 that defines a portion of the medicament accommodating chamber S is provided with a plurality of ejection holes 11 in both the circumferential direction and the axial direction. These plurality of ejection holes 11 are used to eject smoke generated by combustion of the smoking agent 50 toward the outside.

[0079] More specifically, in the housing main body 10, four ejection holes 11 are provided at four positions in the axial direction of the housing. The four ejection holes 11 provided at one of the four positions are arranged at rotationally symmetrical positions at 90° in the circumferential direction. In addition, in the case where the ejection holes 11 provided at two adjacent positions among the four positions are focused on, the ejection hole 11 provided at one of the two positions and the ejection hole 11 provided at the other position are in a positional relationship in which they are shifted from each other by 45° in the circumferential direction.

[0080] The plurality of ejection holes 11 are biased toward the end portion side of the igniter 40 on the side where the housing is assembled in the portion of the housing main body 10 that defines the medicament containing chamber S.

[0081] On the outer peripheral surface of the housing main body 10, a sealing member 15 is attached in a manner to close the ejection holes 11. As the sealing member 15, an aluminum foil or the like to which an adhesive member is applied on one surface is used. Thereby, the gas tightness of the medicament containing chamber S is ensured. Further, the sealing member 15 can be attached to the inner peripheral surface instead of the outer peripheral surface of the housing main body 10.

[0082] <C. Process of the control system and operation of the smoking device> Figure 7 is a flowchart for explaining a flow of a process executed by the control system shown in Figure 1 . Figure 8 and Figure 9 are schematic views each showing a state in which the smoking device according to the embodiment has operated, as viewed from the front side and the side surface side of the automobile, respectively. Next, the process executed in the control system 101 according to the embodiment and the operation of the smoking device 1A will be described with reference to Figures 7 to 9 .

[0083] As shown in Figure 7 , in step S1, the control device 130 determines whether or not a predetermined control period T has come. In the case where it is determined that the control period T has not come (in the case where NO in step S1), the control device 130 advances the process to step S1.

[0084] In the case where it is determined that the control period T has come (in the case where YES in step S1), the control device 130 advances the process to step S2.

[0085] The control device 130 acquires, in step S2, temperature information showing the surface temperature of the under surface 200a of the automobile 200 detected by the sensor 120.

[0086] The control device 130 determines, in step S3, whether or not the surface temperature of the under surface 200a of the automobile 200 is equal to or higher than a set temperature VI.

[0087] In a case where it is determined that the surface temperature of the bottom surface 200a is less than the set temperature VI (NO in step S3), the control device 130 advances the process to step Sl.

[0088] In a case where it is determined that the surface temperature of the bottom surface 200a is the set temperature VI or more (YES in step S3), the control device 130 operates the smoke emitting device IA to emit smoke in step S4.

[0089] More specifically, the control device 130 applies a predetermined amount of current supplied from the power supply 140 to the resistor body, thereby operating the igniter 40.

[0090] If the igniter 40 is operated, the ignition agent 41a burns, and thus the pressure in the ignition portion 41 rises, and the cup body 41c of the ignition portion 41 cracks, and the hot particles generated by the burning of the ignition agent 41a flow out to the outside of the ignition portion 41.

[0091] The hot particles flowing out from the ignition portion 41 reach the first smoke emitting agent 51, and cause the first smoke emitting agent 51 to burn. Thus, a large amount of smoke is generated in the agent accommodating chamber S.

[0092] By generating a large amount of smoke in the agent accommodating chamber S, the pressure and the temperature of the agent accommodating chamber S rise. The internal pressure of the agent accommodating chamber S reaches a predetermined pressure, and thus the sealing member 15 adhered to the plurality of emission holes 11 is blown away. As a result, as shown in Figs. 6 and 7, smoke is emitted from the plurality of emission holes 11 toward the outside. Figure 8 and Figure 9 As shown in Figs. 6 and 7, smoke is emitted from the plurality of emission holes 11 toward the outside.

[0093] In addition, the smoke generated from the first smoke emitting agent 51 is emitted toward the outside, and in parallel therewith, the second smoke emitting agent 52 starts to burn. Thus, a large amount of smoke is continuously generated in the agent accommodating chamber S. The smoke thus generated is also emitted from the plurality of emission holes 11 toward the outside. The emission of the smoke is continued until the burning of the first smoke emitting agent 51 and the second smoke emitting agent 52 is completed.

[0094] The smoke emitted from the smoke emitting device IA as described above spreads around the frame body 170. The spread smoke is sensed by the sensor 301 provided to the ceiling 902a.

[0095] The sensor 301 that senses the smoke operates, and a signal is transmitted from the sensor 301 toward the receiver arranged in the steering room or the like. The receiver that receives the signal displays an alarm on a monitor or causes a speaker to produce an alarm. Thus, the crew CR arranged in the steering room can know that the battery 201 and the automobile 200 in which the battery 201 is built are in an abnormal temperature state. That is, the crew CR can know that there is a sign of a fire caused by the battery 201.

[0096] Thus, by using the control system 101 according to the present embodiment, the automatic fire notification device is operated before the battery 201 catches fire, so that the crew CR or the like can promptly take appropriate measures. As a result, by using the control system 101, it is possible to reduce the risk of fire caused by the automobile 200 in the cargo room 902.

[0097] In addition, the control system 101 according to the present embodiment uses the automatic fire notification device, which is an existing device of the automobile carrier, to notify the sign of fire caused by the automobile 200. Therefore, when introducing the control system 101, the work required is substantially only to install the control system 101 to the automobile 200, so that the control system 101 can be easily introduced.

[0098] <D. SUMMARY> Here, in the smoking device 1A according to the present embodiment, as described above, the housing main body 10 of the portion that defines the medicament accommodation chamber S is provided with a plurality of ejection holes 11 in both the circumferential direction and the axial direction.

[0099] By being thus configured, even in a case where the diffusion of smoke from any one of the plurality of ejection holes 11 is hindered due to, for example, an article being disposed opposite to the ejection hole 11, the smoke can be diffused to the surroundings from the remaining ones of the plurality of ejection holes 11.

[0100] In addition, the housing main body 10 is provided with a plurality of ejection holes 11 in both the circumferential direction and the axial direction, so that the smoke can be diffused to the surroundings of the smoking device 1A, and thus the diffusibility of the smoke can be dramatically improved.

[0101] Therefore, by being thus configured, the smoking device 1A can be configured so that the smoke can be diffused regardless of the setting state.

[0102] Further, by the verification test described later, the effect of improving the diffusibility of the smoke due to the configuration of the smoking device 1A according to the present embodiment is confirmed.

[0103] In addition, in the smoking device 1A according to the present embodiment, as described above, the plurality of ejection holes 11 are concentrated on the end portion side of the igniter 40 on which the housing is assembled in the housing main body 10 of the portion that defines the medicament accommodation chamber S. By being thus configured, it is possible to prevent the smoking device 1A from breaking.

[0104] That is, in the smoking device, the medicament positioned in the portion near the igniter starts to burn sequentially. At this time, for example, in a case where all of the ejection holes are closed by the unburnt portion of the medicament, the smoke generated by the initially burnt medicament is not ejected to the outside, the internal pressure of the medicament accommodation chamber S unexpectedly rises, and thus the smoking device can break.

[0105] In this regard, in the smoking device 1A according to the present embodiment, the ejection hole 11 is positioned in the vicinity of the igniter 40, and thus is disposed in the vicinity of the initial combustion smoking agent 50 (the first smoking agent 51 in the present embodiment). Therefore, the initially generated smoke can be reliably ejected to the outside from the ejection hole 11, and the rupture of the smoking device 1A as described above can be prevented.

[0106] Further, in the smoking device 1A according to the present embodiment, the first smoking agent 51 in a pellet shape and the second smoking agent 52 in a cylindrical shape are used as the smoking agent 50, and the first smoking agent 51 is disposed in the vicinity of the igniter 40. By so configuring, compared to a case where the second smoking agent 52 is disposed in the vicinity of the igniter 40, the flow path of the initially generated smoke to the ejection hole 11 can be more reliably ensured. Therefore, the rupture of the smoking device 1A as described above can also be prevented.

[0107] In addition, in the smoking device 1A according to the present embodiment, as described above, the first smoking agent 51 and the igniter 40 are disposed close to each other. By so configuring, the time from the time when the igniter 40 operates to the time when the first smoking agent 51 combusts can be shortened. Therefore, the smoking device 1A can be configured to be able to eject smoke in a short time.

[0108] Further, in the present embodiment, a case where the control device 130 causes the smoking device 1A to perform processing when the surface temperature of the bottom surface 200a of the automobile 200 detected by the sensor 120 becomes equal to or higher than the set temperature VI is exemplified and described, but the condition that the above-described surface temperature should satisfy in order for the control device 130 to cause the smoking device 1A to perform processing is not limited thereto. For example, the condition can be that the amount of change per unit time of the above-described surface temperature becomes equal to or higher than a predetermined threshold value, or the like.

[0109] In addition, in the present embodiment, a case where the sensor 120 detects the temperature of the automobile 200 as the state of the automobile 200 that becomes a possibility of fire is exemplified and described, but the state of the above-described article detected by the sensor 120 can be a pressure change in the internal pressure of the article, a change in the intensity of infrared rays or ultraviolet rays generated by the article, a strain of the article, or the like. The sensor 120 can be appropriately changed to a pressure sensor, an infrared sensor, an ultraviolet sensor, a strain sensor, or the like, in correspondence with the detected state of the article.

[0110] Furthermore, in the present embodiment, an example is given of a motor vehicle carrier in which the motor vehicle 200 is disposed in the cargo compartment 902 provided with the sensor 301 of the automatic fire notification device, and the smoke generating device 1A and the control system 101 including the smoke generating device 1A are used. However, of course, the smoke generating device 1A and the control system 101 can also be used in addition to such motor vehicle carriers. In addition, it is not necessary to use the smoke generating device 1A in the space provided with the sensor 301.

[0111] In addition, in the present embodiment, an example is given of using the smoke generating device 1A as a device forming part of the control system 101 in the space provided with the sensor 301. However, it is not necessary to use the smoke generating device 1A in the space provided with the sensor 301. In addition, the smoke generating device 1A is not limited to being used as a device forming part of the control system 101, and can also be used alone.

[0112] (Modification example) <E. Configuration of the smoke generating device according to the modification example> Figure 10 is a cross-sectional schematic view of the smoke generating device according to the modification example. Hereinafter, refer to Figure 10 and the smoke generating device 1X according to the modification example of the above-described embodiment will be described.

[0113] As Figure 10 shown, the smoke generating device 1X according to the present modification example has a different composition of the smoke generating agent as compared with the smoke generating device 1A according to the above-described embodiment.

[0114] Specifically, in the smoke generating device 1X, instead of the second smoke generating agent 52, a third smoke generating agent 53 and a heating agent 70 are included. The third smoke generating agent 53 is a pellet-shaped smoke generating agent, and the heating agent 70 is a granular heating agent.

[0115] The third smoke generating agent 53 includes a paraffin-based fuel as the fuel. As the paraffin-based fuel, a solid paraffin having 18 or more carbon atoms is suitably used. In addition, the third smoke generating agent 53 preferably contains a carbonate of an alkali metal such as sodium bicarbonate. Furthermore, the third smoke generating agent 53 may also include a gel-like oil component such as gel-like light oil or gel-like kerosene as other components. In addition, the third smoke generating agent 53 may also include various colorants for coloring the generated smoke as required.

[0116] As the heating agent 70, a mixture containing lead tetroxide, silicon powder, manganese dioxide, copper oxide, dextrin as an organic fuel, or a mixture containing silicon and metal oxides such as iron oxide or copper oxide and not containing lead oxide and organic fuel, or a mixture containing guanidine nitrate and basic copper nitrate is used.

[0117] The third smoking agent 53 and the heating agent 70 are arranged in the portion of the medicament-containing chamber S in which the second smoking agent 52 is arranged in the smoking device 1A. The third smoking agent 53 is arranged in a ring shape so as to abut against the inner circumferential surface of the circumferential wall portion of the case in the portion of the medicament-containing chamber S. The heating agent 70 is arranged in the hollow portion of the third smoking agent 53.

[0118] In the case where the thus-configured smoking device 1X has been operated, first, the first smoking agent 51 starts to burn. Next, the heating agent 70 ignites and starts to burn in conjunction with the burning of the first smoking agent 51. Next, the third smoking agent 53 is heated by the burning of the heating agent 70. Thereby, the paraffin contained in the third smoking agent 53 evaporates together with the coloring agent contained in the third smoking agent 53, and colored smoke is generated. The smoke is ejected from the ejection hole 11 toward the outside, and thus the smoke spreads to the surroundings.

[0119] In the case of such a configuration, effects equivalent to those explained in the above-described embodiments can also be obtained, and the smoking device 1X can be configured so as to be able to spread the smoke regardless of the arrangement state.

[0120] Further, through the verification test described later, it was confirmed that the effect of improving the spreadability of smoke resulting from the configuration of the smoking device 1X as involved in the present modification example.

[0121] (Verification Test) <F. Configuration of each sample used in the verification test> Figure 11 is a table showing the composition and the like of each sample used in the verification test. Hereinafter, the configuration of each sample used in the present verification test will be described with reference to Figure 11

[0122] In the present verification test, a plurality of smoking devices having different lengths in the axial direction of the case and different amounts of the smoking agent were prepared, and the effect of improving the spreadability of smoke resulting from the configuration of the smoking device as involved in the above-described embodiments and the like was verified by measuring the dust concentration in the case where they were operated.

[0123] As shown in Figure 11 In the present verification test, two smoking devices A and B having the configuration of the smoking device 1A as involved in the embodiments and two smoking devices C and D having the configuration of the smoking device 1X as involved in the modification example were prepared, for a total of four samples.

[0124] The lengths L (see Figure 4 ) of the cases of the smoking devices A and B in the axial direction were 80 mm and 120 mm, respectively. In addition, the amount of the first smoking agent 51 of the smoking devices A and B was 4 g in all, and the amount of the second smoking agent 52 was 16 g and 26 g, respectively.​

[0125] The axial direction length L (refer to FIG. 2) of the housing of the smoking device C, D is 80 mm, 120 mm, respectively. In addition, the content of the first smoking agent 51 of the smoking device C, D is 4 g, and the content of the third smoking agent 53 is 5 g, 10 g, respectively. Further, the content of the heating agent 70 of the smoking device C, D is 3 g, 6 g, respectively. Figure 10

[0126] In the present verification test, as the first smoking agent 51 and the second smoking agent 52, a smoking agent having a tetrazole derivative containing boron as a fuel and having potassium nitrate as an oxidizer was used. In addition, as the third smoking agent 53, a smoking agent in which a coloring agent was added to solid paraffin as a fuel was used, and as the heating agent 70, a mixed agent containing guanidine nitrate and alkaline copper nitrate was used.

[0127] In the present verification test, the measurement of the dust concentration was performed by a light scattering type digital dust meter (MODEL 3442, manufactured by Kanomax Corporation, Japan). In addition, in the present verification test, as a value used when converting the measured value (unit: CPM) by the dust meter into the mass concentration (unit: mg / m 3 ), a mass concentration conversion coefficient (K value) of 0.001 mg / m 3 was adopted.

[0128] <G. Measurement results of the verification test> Figure 12 and Figure 13 are graphs showing the measurement results of the verification test. The horizontal axis shows the elapsed time (second) from the start of the operation of the smoking device, and the vertical axis shows the dust concentration (CPM or mg / m 3 ) corresponding to the elapsed time. Hereinafter, the measurement results in the present verification test will be described with reference to Figure 12 and Figure 13 .

[0129] As shown in Figure 12 and Figure 13 , it was confirmed that by operating the smoking devices A, B, smoke having a mass concentration sufficient for operating a sensor or notifying an abnormality to the surroundings can be diffused in a short time. In addition, it was confirmed that by operating the smoking devices C, D, although time is required before the smoke is diffused compared to the smoking devices A, B, smoke having the above-mentioned mass concentration sufficient for operating a sensor or notifying an abnormality to the surroundings can also be diffused. In this way, it was found that by the configuration of the smoking device as described in the above-mentioned embodiments and the modified examples thereof, an effect of improving the diffusibility of smoke can be obtained.

[0130] <H. Appendix> ​If the features of the smoking device and the control system disclosed in the above-described embodiments and modifications thereof are summarized, they are as follows.

[0131] [Para 1] A smoking device comprising: a long-cylindrical housing having a circumferential wall portion whose one end portion and the other end portion are closed, and including a medicament accommodating chamber in the inside; an igniter including a heat-generating body that generates heat by electric conduction and an ignition agent that ignites by the heat generated by the heat-generating body, and assembled to the one end portion of the housing; and a smoking agent accommodated in the medicament accommodating chamber, ignited and combusted by the operation of the igniter, thereby generating smoke, a plurality of ejection holes for ejecting the smoke generated by the combustion of the smoking agent toward the outside are provided in the circumferential wall portion that defines the portion of the medicament accommodating chamber, in both the circumferential direction and the axial direction of the housing.

[0132] [Para 2] The smoking device according to Para 1, the plurality of ejection holes are concentrated in the circumferential wall portion that defines the portion of the medicament accommodating chamber, on the one end portion side of the housing.

[0133] [Para 3] The smoking device according to Para 1 or 2, the igniter is positioned protruding toward the medicament accommodating chamber, the smoking device further comprises a coil spring interposed between the smoking agent and the one end portion of the housing, and the coil spring fixes the smoking agent inside the medicament accommodating chamber by separating the smoking agent from the igniter and simultaneously applying a force to the smoking agent toward the other end portion side of the housing.

[0134] [Para 4] The smoking device according to any one of Paras 1 to 3, the smoking agent includes a fuel and an oxidizer.

[0135] [Para 5] The smoking device according to Para 4, the fuel is composed of a non-paraffin fuel.

[0136] [Para 6] The smoking device according to Para 4, the fuel includes a paraffin fuel.

[0137] [Para 7] A control system comprising: The smoking device according to any one of the above-described embodiments 1 to 6; a sensor configured separately from a sensor of an automatic fire notification device and detecting a state of an article that is likely to catch fire; and a control device that causes the smoking device to emit smoke when the state of the article detected by the sensor satisfies a predetermined condition.

[0138] <I. Other modes and the like> The shape or configuration, size, number, material, and the like of each part shown in the above-described embodiments of the present application and modifications thereof can be changed in various ways without departing from the gist of the present application.

[0139] In addition, the characteristic configurations shown in the above-described embodiments of the present application and modifications thereof can be combined with each other, of course, within the scope of the gist of the present application.

[0140] Thus, the above-described embodiments of the present application and modifications thereof disclosed this time are illustrative in all respects and are not restrictive. The technical scope of the present application is indicated by the claims, and all modifications equivalent in meaning and scope to the claims are included.

[0141] Explanation of symbols 1A, 1X smoking device, 101 control system, 10 housing main body, 11 emission hole, 12, 13, 23 caulking portion, 15 sealing member, 20 holder, 21 through portion, 22, 31 ring-shaped groove portion, 24 recessed portion, 30 closing member, 40 igniter, 41 ignition portion, 41a ignition powder, 41b plug, 41c cup, 42 terminal pin, 50 smoking agent, 51 first smoking agent, 52 second smoking agent, 53 third smoking agent, 60 coil spring, 61 diameter expansion portion, 62 pressing portion, 70 heating agent, 120 sensor, 130 control device, 140 power supply, 170 frame, 200 automobile, 200a bottom surface, 201 battery, 301 sensor, 902 cargo room, 902a ceiling, 902b floor, CR crew, S medicine-containing room

Claims

1. A smoking device, comprising: an elongated cylindrical housing having a circumferential wall portion with one end portion and the other end portion closed, and including a medicament accommodating chamber in the inside; an igniter including a heating element that generates heat by being energized, and an ignition agent that ignites by being heated by the heating element, and assembled to the one end portion of the housing; and a smoking agent accommodated in the medicament accommodating chamber, ignited and combusted by the operation of the igniter, thereby generating smoke, wherein the circumferential wall portion of the portion defining the medicament accommodating chamber is provided with a plurality of ejection holes for ejecting the smoke generated by the combustion of the smoking agent toward the outside, in both the circumferential direction and the axial direction of the housing.

2. The smoking device according to claim 1, wherein the plurality of ejection holes are biased to the one end portion side of the housing in the circumferential wall portion of the portion defining the medicament accommodating chamber.

3. The smoking device according to claim 1, wherein the igniter is positioned projecting toward the medicament accommodating chamber, the smoking device further comprises a coil spring interposed between the smoking agent and the one end portion of the housing, and the smoking agent is fixed in the inside of the medicament accommodating chamber by separating the smoking agent from the igniter while applying force to the smoking agent toward the other end portion side of the housing.

4. The smoking device according to claim 1, wherein the smoking agent includes a fuel and an oxidizer.

5. The smoking device according to claim 4, wherein the fuel is constituted by a non-paraffin fuel.

6. The smoking device according to claim 4, wherein the fuel includes a paraffin fuel.

7. A control system, comprising: the smoking device according to any one of claims 1 to 6; a sensor configured separately from a sensor of an automatic fire notification device, and detecting a state of an article that is likely to catch fire; and a control device that causes the smoking device to eject smoke when the state of the article detected by the sensor satisfies a predetermined condition. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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