JP2010009225A - Smoke sensor inspection device - Google Patents

Smoke sensor inspection device Download PDF

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JP2010009225A
JP2010009225A JP2008166208A JP2008166208A JP2010009225A JP 2010009225 A JP2010009225 A JP 2010009225A JP 2008166208 A JP2008166208 A JP 2008166208A JP 2008166208 A JP2008166208 A JP 2008166208A JP 2010009225 A JP2010009225 A JP 2010009225A
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smoke
inspection
particles
electrode
sensor
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Keisuke Nakamura
圭佑 中村
Koichi Mitani
宏一 三谷
Yoshiharu Nakamura
芳春 中村
Masanori Okano
正紀 岡野
Daisuke Nishimura
大輔 西村
Yohei Ishigami
陽平 石上
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Panasonic Electric Works Co Ltd
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Panasonic Electric Works Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To perform high-accuracy inspection by allowing efficient and stable inflow of inspecting smoke into a smoke sensor without being affected by a flow of air by a simple configuration, in a smoke sensor inspection device. <P>SOLUTION: The smoke sensor inspection device 1 is a device making smoke particles flow into an inspection tank 2 and inspecting performance of the smoke sensor 3 disposed inside the inspection tank 2, includes a smoke generator 4 generating the smoke inside the inspection tank 2 and an electrode E for applying an electric field to the smoke particles generated and charged by the smoke generator 4, increases flow speed of the smoke particles by the electric field generated by the electrode E, and makes the smoke particles flow into the smoke sensor 3. The smoke sensor inspection device 1 also includes a smoke density sensor S detecting smoke density inside the inspection tank 2, and controls voltage applied to the electrode E according to a value of the smoke density detected by the smoke density sensor S. Thereby, because the flow speed of the charged smoke particles is increased by the electric field, only the inspecting smoke particles can be made to flow into the smoke sensor. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、煙感知器を検査するための検査装置に関する。   The present invention relates to an inspection apparatus for inspecting a smoke detector.

従来から、一定濃度の煙を検査槽内の回転送風路で循環させて煙感知器の感度特性を検査する煙感知器検査装置においては、煙濃度や風速をより安定させて検査精度を向上する努力が行われている。例えば、煙を送風循環させる検査槽に、煙発生部と複数のクロスフローファンと整流板と複数の風速センサーとを設け、前記各クロスフローファンに対応して前記整流板によって複数の煙流路を形成し、各煙流路に対応してそれぞれ前記風速センサーを配設し当該風速の検出により各クロスフローファンを制御するようにした煙感知器検査装置が知られている（例えば、特許文献１参照）。
特開平１１−１８５１８２号公報 Conventional smoke detector inspection equipment that inspects the sensitivity characteristics of smoke detectors by circulating smoke at a constant concentration in a rotating air passage in the inspection tank, improves the inspection accuracy by making the smoke concentration and wind speed more stable. Efforts are being made. For example, a smoke generation unit, a plurality of cross flow fans, a rectifying plate, and a plurality of wind speed sensors are provided in an inspection tank that blows and circulates smoke, and a plurality of smoke flow paths are provided by the rectifying plate corresponding to each cross flow fan. There is known a smoke detector inspection apparatus in which the wind speed sensor is arranged corresponding to each smoke flow path and each cross flow fan is controlled by detecting the wind speed (for example, Patent Documents) 1).
JP 11-185182 A

しかしながら、上述した特許文献１に示されるような煙感知器検査装置においては、クロスフローファンによる送風によって煙を循環させるので、煙検知器周辺の空気が煙とともに煙検知器内部に流入しようとして煙検知器付近に乱流が発生し、その乱流が煙の流入性が低下させてしまうという問題がある。   However, in the smoke detector inspection apparatus as shown in Patent Document 1 described above, smoke is circulated by blowing air from a cross flow fan, so that the air around the smoke detector flows into the smoke detector together with the smoke. There is a problem that turbulent flow is generated in the vicinity of the detector, and the turbulent flow reduces the inflow property of smoke.

本発明は、上記課題を解消するものであって、簡単な構成により、空気の流れに影響されることなく検査用の煙を煙感知器に効率良く安定して流入させることが可能で精度良く検査できる煙感知器検査装置を提供することを目的とする。   The present invention solves the above-mentioned problems, and with a simple configuration, it is possible to efficiently and stably flow inspection smoke into a smoke detector without being affected by the air flow. An object of the present invention is to provide a smoke detector inspection device that can be inspected.

上記課題を達成するために、請求項１の発明は、検査槽内に煙粒子を流し、該検査槽内に配置した煙感知器の性能を検査する煙感知器検査装置において、前記検査槽内に煙を発生させる煙発生器と、前記煙発生器により発生され帯電した煙粒子に電界を作用させるための電極と、を備え、前記電界により煙粒子の流速を高めて該煙粒子を煙感知器に流入させるものである。   In order to achieve the above object, the invention of claim 1 is directed to a smoke detector inspection apparatus for inspecting the performance of a smoke detector disposed in an inspection tank by flowing smoke particles in the inspection tank. A smoke generator for generating smoke and an electrode for applying an electric field to the charged smoke particles generated by the smoke generator, and detecting the smoke particles by increasing the flow velocity of the smoke particles by the electric field. To flow into the vessel.

請求項２の発明は、請求項１に記載の煙感知器検査装置において、前記検査槽内の煙濃度を検出する煙濃度センサを備え、前記センサによって検出された煙濃度の値に応じて前記電極に印加する電圧を制御するものである。   A second aspect of the present invention is the smoke detector inspection apparatus according to the first aspect, further comprising a smoke concentration sensor for detecting a smoke concentration in the inspection tank, and the smoke detector according to a value of the smoke concentration detected by the sensor. The voltage applied to the electrode is controlled.

請求項３の発明は、請求項１または請求項２に記載の煙感知器検査装置において、前記電極が前記検査槽内の煙粒子の移動方向に沿って複数配設されており、電圧を印加する電極を煙粒子の流速が高まるように順次切り替えるものである。   According to a third aspect of the present invention, in the smoke detector inspection device according to the first or second aspect, a plurality of the electrodes are arranged along the movement direction of the smoke particles in the inspection tank, and a voltage is applied. The electrodes to be switched are sequentially switched so as to increase the flow velocity of the smoke particles.

請求項４の発明は、請求項１または請求項２に記載の煙感知器検査装置において、前記電極が前記煙感知器の煙流入口に近接して配設されているものである。   According to a fourth aspect of the present invention, in the smoke detector inspection apparatus according to the first or second aspect, the electrode is disposed in the vicinity of the smoke inlet of the smoke detector.

請求項５の発明は、請求項１乃至請求項４のいずれか一項に記載の煙感知器検査装置において、前記検査槽内に煙攪拌用のファンを備えたものである。   According to a fifth aspect of the present invention, in the smoke sensor inspection apparatus according to any one of the first to fourth aspects, a fan for stirring the smoke is provided in the inspection tank.

請求項１の発明によれば、帯電している煙粒子の流速を電界によって高めるので、空気の流れに影響されることなく検査用の煙粒子のみを選択的に効率良く安定して煙感知器に流入させることができ精度良い検査が可能となる。   According to the invention of claim 1, since the flow velocity of the charged smoke particles is increased by the electric field, only the smoke particles for inspection are selectively and stably stabilized without being affected by the air flow. It is possible to inject the gas into the gas and to make an inspection with high accuracy.

請求項２発明によれば、煙濃度に応じて電界強度を変化させることにより、煙検知器に流入する煙濃度を一定に保持する制御が可能となるので、精度良い検査ができる。   According to the invention of claim 2, by controlling the electric field intensity according to the smoke density, it is possible to control to keep the smoke density flowing into the smoke detector constant, so that an accurate inspection can be performed.

請求項３の発明によれば、複数配置した電極によって煙粒子の流れ方向や流速を制御できるので、整流板などを用いる場合に比べて流路損失を低く抑えることができ、検査用の煙を煙感知器に効率良く安定して流入させることができ、精度良い検査ができる。   According to the invention of claim 3, since the flow direction and flow velocity of the smoke particles can be controlled by a plurality of arranged electrodes, the flow path loss can be suppressed lower than when a rectifying plate or the like is used, and the smoke for inspection can be reduced. It is possible to efficiently and stably flow into the smoke detector, and an accurate inspection can be performed.

請求項４の発明によれば、煙粒子を、より直接的に導いて煙感知器に効率良く安定して流入させることができる。また、煙検知器の周辺のみに電極を配置するので、煙感知器検査装置の小型化が図られる。   According to the invention of claim 4, smoke particles can be guided more directly and efficiently and stably flow into the smoke detector. In addition, since the electrode is disposed only around the smoke detector, the smoke detector inspection apparatus can be miniaturized.

請求項５の発明によれば、煙を攪拌することにより均一な濃度の煙を煙検知器に供給でき、安定した精度良い検査ができる。   According to the invention of claim 5, by stirring the smoke, smoke having a uniform concentration can be supplied to the smoke detector, and a stable and accurate inspection can be performed.

（第１の実施形態）
図１、図２を参照して第１の実施形態に係る煙感知器検査装置を説明する。煙感知器検査装置１は、検査槽２内に煙粒子を流し、検査槽２内に配置した煙感知器３の性能を検査する装置であって、検査槽２内に煙を発生させる煙発生器４と、煙発生器４により発生され帯電した煙粒子に電界を作用させるための電極Ｅと、を備え、電極Ｅによって発生した電界により煙粒子の流速を高めて煙粒子を煙感知器３に流入させるように構成されている。また、煙感知器検査装置１は、検査槽２内の煙濃度を検出する煙濃度センサＳを備え、煙濃度センサＳによって検出された煙濃度の値に応じて電極Ｅに印加する電圧を制御するように構成されている。 (First embodiment)
A smoke detector inspection apparatus according to the first embodiment will be described with reference to FIGS. 1 and 2. The smoke detector inspection device 1 is a device for injecting smoke particles into the inspection tank 2 and inspecting the performance of the smoke detector 3 disposed in the inspection tank 2, and generating smoke in the inspection tank 2. And an electrode E for applying an electric field to the charged smoke particles generated by the smoke generator 4, and the flow rate of the smoke particles is increased by the electric field generated by the electrode E, so that the smoke particles are moved to the smoke detector 3. It is comprised so that it may flow into. The smoke detector inspection device 1 also includes a smoke concentration sensor S that detects the smoke concentration in the inspection tank 2, and controls the voltage applied to the electrode E in accordance with the smoke concentration value detected by the smoke concentration sensor S. Is configured to do.

さらに詳述すると、検査槽２は、水平に設置された略直方体形状の容器であり、内部中央に水平に設けた四角形の仕切り板２０によって上下に区分されている。検査槽２内で、煙粒子から成る煙は一方方向に流れる。煙粒子の流路は、図１の配置において仕切板２０の上方で右から左へ、仕切板２０の左端で上から下へ、仕切板２０の下方で左から右へ、そして、仕切板２０の右端で下から上へと左回りに設定されている。   More specifically, the inspection tank 2 is a substantially rectangular parallelepiped container installed horizontally, and is vertically divided by a rectangular partition plate 20 provided horizontally in the center of the inside. In the inspection tank 2, smoke consisting of smoke particles flows in one direction. The flow path of the smoke particles is from right to left above the partition plate 20, from top to bottom at the left end of the partition plate 20, from left to right below the partition plate 20 in the arrangement of FIG. It is set to counterclockwise from the bottom to the top at the right end of.

仕切板２０で仕切られた上部空間は検査室２１であり、その天井部分に煙感知器３が煙感知部３０を下向きに突設させて配置され、煙感知器３が対向する仕切板２０上の位置に煙濃度センサＳが配置されている。煙濃度センサＳは、予め較正された煙感知器３を用いることができる。また、煙濃度センサＳは、一定の光を常時発生する発光部と、その光を受光する受光部とを用いて構成することもできる。   The upper space partitioned by the partition plate 20 is an inspection room 21, and the smoke detector 3 is disposed on the ceiling portion with the smoke detector 30 projecting downward, and the smoke detector 3 faces the partition plate 20. The smoke density sensor S is arranged at the position of. As the smoke density sensor S, a smoke sensor 3 calibrated in advance can be used. The smoke density sensor S can also be configured using a light emitting unit that constantly generates constant light and a light receiving unit that receives the light.

仕切板２０の右辺部には紙面奥行き方向に回転軸を有する乱流を発生しない低風速条件のもとで用いるクロスフローファン２２が設けられている。クロスフローファン２２は、その回転軸に直交する風速を精度よくコントロールすることができる。   On the right side of the partition plate 20, there is provided a cross flow fan 22 used under a low wind speed condition that does not generate a turbulent flow having a rotation axis in the depth direction of the drawing. The cross flow fan 22 can accurately control the wind speed orthogonal to the rotation axis.

検査室２１の左側には、流路を横切るように電極Ｅが設けられている。電極Ｅは、空気や煙粒子の流れを妨げないように形成され、例えば、導電体により網状またはスリット状に形成されている。   An electrode E is provided on the left side of the examination chamber 21 so as to cross the flow path. The electrode E is formed so as not to hinder the flow of air and smoke particles, and is formed in a net shape or a slit shape by a conductor, for example.

仕切板２０の下部空間は、煙発生室であって、左方に整流板２３が設けられ、中央右側寄りに煙発生器４が設けられている。煙発生器４は、任意の枚数の紙片を高温のヒーター上に接触させて発煙させたり、煙粒子の代替としてパラフィンミスト粒子を発生させたりする装置である。煙発生器４によって発生する煙粒子、または煙粒子代替のパラフィンミストを形成する粒子等（以下、総称して煙粒子）は、一般に、その粒子発生時に負に帯電して発生することが知られている。   A lower space of the partition plate 20 is a smoke generation chamber, and a rectifying plate 23 is provided on the left side, and a smoke generator 4 is provided on the right side of the center. The smoke generator 4 is an apparatus that causes an arbitrary number of pieces of paper to come into contact with a high-temperature heater to generate smoke, or generate paraffin mist particles instead of smoke particles. It is known that smoke particles generated by the smoke generator 4 or particles forming paraffin mist instead of smoke particles (hereinafter collectively referred to as smoke particles) are generally generated by being negatively charged when the particles are generated. ing.

電極Ｅには、直流電源１０の正極が接続されている。直流電源１０の負極は、検査槽２の筐体に接地されている。本実施例の場合、前記負極は煙発生器４に接地されている。なお、筐体とは別個に専用の負電極を煙流路の周辺に配置して、その負電極に直流電源１０の負極を接続するようにしてもよい。   The positive electrode of the DC power source 10 is connected to the electrode E. The negative electrode of the DC power supply 10 is grounded to the casing of the inspection tank 2. In this embodiment, the negative electrode is grounded to the smoke generator 4. A dedicated negative electrode may be arranged around the smoke flow path separately from the housing, and the negative electrode of the DC power supply 10 may be connected to the negative electrode.

次に、上述のように構成された煙感知器検査装置１の動作を説明する。電極Ｅに正電圧を印可して電極Ｅの垂直方向に電界を発生させ、クロスフローファン２２を動作させた状態で、煙発生器４によって煙粒子を発生させる。煙粒子は空気の流れに沿って検査室２１に流入する。すると、煙粒子のうち、負に帯電した煙粒子は、煙感知器３の前方（下流側）に配置された電極Ｅからの静電引力を受けて流速を増し、個々の煙粒子のランダムな移動方向が電極Ｅの方向により整列される。   Next, the operation of the smoke detector inspection apparatus 1 configured as described above will be described. Smoke particles are generated by the smoke generator 4 in a state where a positive voltage is applied to the electrode E to generate an electric field in the vertical direction of the electrode E and the cross flow fan 22 is operated. The smoke particles flow into the examination room 21 along the air flow. Then, among the smoke particles, the negatively charged smoke particles are subjected to electrostatic attraction from the electrode E disposed in front (downstream side) of the smoke detector 3 to increase the flow velocity, and the random smoke particles are randomized. The moving direction is aligned with the direction of the electrode E.

また、煙濃度センサＳによって検出された煙濃度の値に応じて、例えば、煙濃度が低い場合には、電極Ｅに印加する電圧を高めて煙粒子をより多く引き寄せることにより、煙濃度を高めるように制御する。   Further, according to the value of the smoke density detected by the smoke density sensor S, for example, when the smoke density is low, the voltage applied to the electrode E is increased to attract more smoke particles, thereby increasing the smoke density. To control.

上述のように、本実施形態の煙感知器検査装置１によれば、帯電している煙粒子の流速を電界によって高めることができるので、空気の流れに依存することなく、また空気の乱流などに影響されることなく検査用の煙粒子のみを選択的に効率良く安定して煙感知器３に流入させることができる。空気の流速を抑えて、低風速条件のもとで効率良く煙粒子を煙感知器３に流入させることができ、精度良い検査が可能となる。   As described above, according to the smoke detector inspection apparatus 1 of the present embodiment, the flow velocity of the charged smoke particles can be increased by the electric field, so that the air turbulence can be achieved without depending on the air flow. Only the smoke particles for inspection can be selectively and efficiently allowed to flow into the smoke detector 3 without being affected by the above. Smoke particles can be efficiently flowed into the smoke detector 3 under a low wind speed condition by suppressing the air flow rate, and an accurate inspection is possible.

また、煙の検出濃度に応じて電極Ｅによる電界強度を変化させることにより、煙検知器３に流入する煙濃度を一定に保持する制御が可能となるので、安定した精度良い検査ができる。   Further, by changing the electric field intensity by the electrode E according to the smoke detection density, it is possible to control the smoke density flowing into the smoke detector 3 to be constant, so that a stable and accurate inspection can be performed.

（第２の実施形態）
図３を参照して第２の実施形態に係る煙感知器検査装置を説明する。本実施形態における煙感知器検査装置１は、第１の実施形態における電極Ｅを、煙感知器３の手前側（上流側）に配置したものであり、他の点は第１の実施形態と同様である。 (Second Embodiment)
A smoke detector inspection apparatus according to the second embodiment will be described with reference to FIG. The smoke detector inspection device 1 in the present embodiment is one in which the electrode E in the first embodiment is arranged on the front side (upstream side) of the smoke detector 3, and the other points are the same as those in the first embodiment. It is the same.

本実施形態においては、煙粒子は電極Ｅを通過した後、煙感知器３に流入する構成とされている。このような電極Ｅを有効に動作させるには、上流の煙粒子を加速する際に電極Ｅに電圧を印加し、煙粒子が電極Ｅを通過する際には煙粒子が電極Ｅに吸着されないように電源１０をオフすればよい。また、煙発生器４を間欠的に動作させることにより、煙粒子の集団をパルス的に発生させ、その煙粒子の集団の移動に同期させて、電極Ｅに印加する電圧をオン、オフするようにしてもよい。   In the present embodiment, the smoke particles are configured to flow into the smoke detector 3 after passing through the electrode E. In order to operate such an electrode E effectively, a voltage is applied to the electrode E when accelerating the upstream smoke particles so that the smoke particles are not adsorbed by the electrode E when the smoke particles pass through the electrode E. The power supply 10 may be turned off. Further, by intermittently operating the smoke generator 4, a group of smoke particles is generated in a pulsed manner, and the voltage applied to the electrode E is turned on and off in synchronization with the movement of the group of smoke particles. It may be.

（第３の実施形態）
図４を参照して第３の実施形態に係る煙感知器検査装置を説明する。本実施形態における煙感知器検査装置１は、第１の実施形態における電極Ｅと電源１０とに加え、煙感知器３の上流側に検査槽２内の煙粒子の移動方向に沿って複数配設した電極ｅ１，・・，ｅｎ（総称して電極ｅ）と、これらの電極ｅに印加する電圧を、煙粒子の流速が高まるように順次切り替える切替スイッチ１２とを備えたものであり、他の点は第１の実施形態と同様である。なお、クロスフローファン２２が、電極Ｅの下流側の位置に設けられているが、第１の実施形態における位置との違いは本質的なものではない。 (Third embodiment)
A smoke detector inspection apparatus according to the third embodiment will be described with reference to FIG. In addition to the electrode E and the power supply 10 in the first embodiment, a plurality of smoke detector inspection devices 1 in the present embodiment are arranged on the upstream side of the smoke detector 3 along the direction of movement of the smoke particles in the inspection tank 2. Provided with electrodes e1,..., En (generally referred to as electrodes e) and a changeover switch 12 for sequentially switching the voltage applied to these electrodes e so as to increase the flow velocity of smoke particles. This point is the same as in the first embodiment. In addition, although the crossflow fan 22 is provided in the position of the downstream of the electrode E, the difference with the position in 1st Embodiment is not essential.

電極ｅ１，・・，ｅｎは、上流側からこの順番で、煙粒子の流れる流路に沿って、煙粒子の流れを妨げないように配置されている。煙発生器４で発生された煙粒子は、移動の先々で前方の電極ｅからの静電引力を受けて加速される。この場合、加速中の煙粒子を減速しないように、後方の所定範囲の電極ｅは電圧をオフにすればよい。この場合も、煙発生器４を間欠的に動作させることにより、煙粒子の集団をパルス的に発生させ、その煙粒子の集団の移動に同期させて、切替スイッチ１２によって、電極ｅに印加する電圧を次々とオン、オフするようにしてもよい。あるいは、電圧を印加する電極ｅの切替によって強制的に煙粒子の粗密化を図って煙粒子群とする、いわゆるバンチングを行うようにしてもよい。   The electrodes e1,..., En are arranged in this order from the upstream side along the flow path through which the smoke particles flow so as not to disturb the flow of the smoke particles. Smoke particles generated by the smoke generator 4 are accelerated by receiving electrostatic attraction from the front electrode e before the movement. In this case, it is only necessary to turn off the voltage of the electrode e in a predetermined range behind so as not to decelerate the smoke particles being accelerated. Also in this case, the smoke generator 4 is intermittently operated to generate a group of smoke particles in a pulsed manner and is applied to the electrode e by the changeover switch 12 in synchronization with the movement of the group of smoke particles. The voltage may be turned on and off one after another. Alternatively, so-called bunching may be performed in which smoke particles are forcibly densified by switching the electrode e to which a voltage is applied to form a smoke particle group.

本実施形態の煙感知器検査装置によれば、上流側の流路に沿うように配置した複数の電極ｅ１，・・，ｅｎによって煙粒子の流れ方向制御や流速を高める制御ができるので、整流板などを用いる場合に比べて流路損失を低く抑えることができ、検査用の煙を煙感知器３に効率良く安定流入させることができ、精度良い検査を効率的に行うことができる。   According to the smoke detector inspection device of the present embodiment, the flow direction of smoke particles and the control to increase the flow velocity can be controlled by the plurality of electrodes e1,. Compared to the case of using a plate or the like, the flow path loss can be kept low, and the smoke for inspection can be efficiently and stably flowed into the smoke detector 3 so that accurate inspection can be performed efficiently.

（第４の実施形態）
図５乃至図７を参照して第４の実施形態に係る煙感知器検査装置を説明する。本実施形態における煙感知器検査装置１の検査槽２は、図５に示すように、多段円筒形を有する縦型の構成であって、内部下方に不図示の煙発生器を備えている。検査槽２の上端は、Ｏリング等の封止材２５を介して、煙感知器３の表面において終端している。煙感知器３は、複数の煙流入口５を有する煙感知部３０を検査槽２の検査室２１に望ませて配置されている。また、図５、図６に示すように、煙流入口５に近接して、複数の電極Ｅが配設されている。各電極Ｅは、共通の電源１０に接続されて、正電圧を印加される。 (Fourth embodiment)
A smoke detector inspection apparatus according to the fourth embodiment will be described with reference to FIGS. As shown in FIG. 5, the inspection tank 2 of the smoke detector inspection apparatus 1 in the present embodiment has a vertical configuration having a multistage cylindrical shape, and includes a smoke generator (not shown) in the lower part inside. The upper end of the inspection tank 2 terminates on the surface of the smoke detector 3 via a sealing material 25 such as an O-ring. The smoke detector 3 is arranged in such a manner that a smoke detector 30 having a plurality of smoke inlets 5 is desired in the inspection chamber 21 of the inspection tank 2. Further, as shown in FIGS. 5 and 6, a plurality of electrodes E are disposed in the vicinity of the smoke inlet 5. Each electrode E is connected to a common power supply 10 and is applied with a positive voltage.

なお、煙感知部３０は、遮光壁５１によって構成された内部空間と、中心方向から偏向させた多数の煙流入口５を備えて構成されている。前記内部空間には発光部６と受光部７とが設けられ、煙粒子による散乱減光によって煙粒子濃度を検出するようになっている。煙感知部３０の外形を、図７（ａ）（ｂ）に示す。煙感知部３０の上部には、配線の導入などのための開口３１が開いている。   The smoke sensing unit 30 includes an internal space formed by the light shielding wall 51 and a large number of smoke inlets 5 deflected from the central direction. In the internal space, a light emitting unit 6 and a light receiving unit 7 are provided, and the smoke particle concentration is detected by scattering attenuation by smoke particles. The outer shape of the smoke sensing unit 30 is shown in FIGS. In the upper part of the smoke detection unit 30, an opening 31 for introducing a wiring is opened.

検査槽２の下方Ａから流れてきた煙粒子は、煙流入口５から煙感知部３０の内部に入り、上部の開口３１から、上方Ｂに向けて流れ出ていく。そこで、電極Ｅに正電圧を印加することにより、空気の流速を抑えて乱流の発生しない低風速条件のもとで、空気の流れとは独立に、帯電した煙粒子を引きつけて、煙粒子を効率的に煙感知部３０内部に流入させることができる。すなわち、本実施形態の煙感知器用検査装置１によれば、煙検知器３の各煙流入口５に検査用の煙を、より直接的に導くことができるので、空気の乱流に邪魔されることなく煙を煙感知器３に効率良く安定して流入させることができる。また、煙検知器３の周辺のみに電極Ｅを配置できるので、煙感知器検査装置１の小型化が図られる。   Smoke particles flowing from the lower part A of the inspection tank 2 enter the inside of the smoke sensing unit 30 through the smoke inlet 5 and flow out upward B from the upper opening 31. Therefore, by applying a positive voltage to the electrode E, the smoke particles are attracted to the charged smoke particles independently of the air flow under a low wind speed condition where the air flow rate is suppressed and turbulence does not occur. Can efficiently flow into the smoke sensing unit 30. That is, according to the smoke detector inspection apparatus 1 of the present embodiment, the inspection smoke can be guided more directly to each smoke inlet 5 of the smoke detector 3, so that it is obstructed by air turbulence. Smoke can be efficiently and stably flowed into the smoke detector 3 without any trouble. Further, since the electrode E can be disposed only around the smoke detector 3, the smoke detector inspection apparatus 1 can be downsized.

（第５の実施形態）
図８を参照して第５の実施形態に係る煙感知器検査装置を説明する。本実施形態における煙感知器検査装置１は、第３の実施形態における電極ｅ（電極ｅ１，・・，ｅｎの総称）を、煙流路を遮るように配置したものであり、他の点は第３の実施形態と同様である。ただ、電極ｅは、煙粒子の移動を妨げないように、例えば、目の粗い網状に形成されている。切替スイッチ１２を用いて各電極ｅに電圧を印加する制御などは、第３の実施形態と同様である。本実施形態の煙感知器検査装置１によると、煙粒子を各電極ｅに垂直に通過させることができるので、第３の実施形態の煙感知器検査装置１に比べて、煙粒子をより煙流路に沿って加速できるという効果がある。 (Fifth embodiment)
A smoke detector inspection apparatus according to the fifth embodiment will be described with reference to FIG. The smoke detector inspection device 1 in the present embodiment is an arrangement in which the electrode e (a general term for the electrodes e1,..., En) in the third embodiment is arranged so as to block the smoke flow path. This is the same as in the third embodiment. However, the electrode e is formed in, for example, a net-like shape having a coarse mesh so as not to prevent the movement of smoke particles. The control of applying a voltage to each electrode e using the changeover switch 12 is the same as in the third embodiment. According to the smoke detector inspection apparatus 1 of the present embodiment, smoke particles can pass vertically through the electrodes e, so that smoke particles are more smoked than the smoke detector inspection apparatus 1 of the third embodiment. There is an effect that acceleration can be performed along the flow path.

（第６の実施形態）
図９を参照して第６の実施形態に係る煙感知器検査装置を説明する。本実施形態における煙感知器検査装置１は、第１の実施形態において、煙発生器４の上流に煙攪拌用のファン６を備え、煙発生器４の下流直近に煙粒子を強制的に負に帯電させるための電子シャワー装置７を備えたものであり、他の点は第３の実施形態と同様である。 (Sixth embodiment)
A smoke detector inspection apparatus according to the sixth embodiment will be described with reference to FIG. In the first embodiment, the smoke detector inspecting apparatus 1 includes a fan 6 for agitating smoke upstream of the smoke generator 4 and forcibly releases smoke particles immediately downstream of the smoke generator 4. The electronic shower device 7 is provided for charging, and the other points are the same as in the third embodiment.

攪拌用のファン６として、プロペラファンを好適に用いることができる。プロペラファンは、プロペラによって回転軸方向に風速を発生させることにより、煙発生器４で発生させた煙を煙流路内に均一濃度に広げることができる。すなわち、煙を攪拌することにより均一な濃度の煙を煙検知器３に供給でき、安定した精度良い検査ができる。   As the stirring fan 6, a propeller fan can be suitably used. The propeller fan can spread the smoke generated by the smoke generator 4 to a uniform concentration in the smoke flow path by generating a wind speed in the direction of the rotation axis by the propeller. That is, by stirring the smoke, smoke having a uniform concentration can be supplied to the smoke detector 3, and a stable and accurate inspection can be performed.

また、電子シャワー装置７は、煙粒子の帯電率を強制的に向上させるので、電極Ｅによる効果をより高めることができる。   Moreover, since the electronic shower apparatus 7 forcibly improves the charging rate of the smoke particles, the effect of the electrode E can be further enhanced.

なお、本発明は、上記構成に限られることなく種々の変形が可能である。例えば、上述した各実施形態の構成を互いに組み合わせた構成とすることができる。   The present invention is not limited to the above-described configuration, and various modifications can be made. For example, the configurations of the above-described embodiments can be combined with each other.

本発明の第１の実施形態に係る煙感知器検査装置の断面図。Sectional drawing of the smoke detector inspection apparatus which concerns on the 1st Embodiment of this invention. 同上装置の内部斜視図。The internal perspective view of an apparatus same as the above. 第２の実施形態に係る煙感知器検査装置の断面図。Sectional drawing of the smoke detector inspection apparatus which concerns on 2nd Embodiment. 第３の実施形態に係る煙感知器検査装置の断面図。Sectional drawing of the smoke detector inspection apparatus which concerns on 3rd Embodiment. 第４の実施形態に係る煙感知器検査装置の断面図。Sectional drawing of the smoke detector inspection apparatus which concerns on 4th Embodiment. 同上装置の断面図。Sectional drawing of an apparatus same as the above. （ａ）は同上装置によって検査される煙感知器の側面図、（ｂ）は同煙感知器の煙感知部の斜視図。(A) is a side view of a smoke detector to be inspected by the apparatus, and (b) is a perspective view of a smoke detector of the smoke detector. 第５の実施形態に係る煙感知器検査装置の断面図。Sectional drawing of the smoke detector inspection apparatus which concerns on 5th Embodiment. 第６の実施形態に係る煙感知器検査装置の断面図。Sectional drawing of the smoke detector inspection apparatus which concerns on 6th Embodiment.

符号の説明Explanation of symbols

１ 煙感知器検査装置
２ 検査槽
３ 煙感知器
４ 煙発生器
５ 煙流入口
６ プロペラファン
Ｅ，ｅ１〜ｅｎ 電極
Ｓ 煙濃度センサ DESCRIPTION OF SYMBOLS 1 Smoke detector inspection apparatus 2 Inspection tank 3 Smoke detector 4 Smoke generator 5 Smoke inlet 6 Propeller fan E, e1-en Electrode S Smoke density sensor

Claims (5)

検査槽内に煙粒子を流し、該検査槽内に配置した煙感知器の性能を検査する煙感知器検査装置において、
前記検査槽内に煙を発生させる煙発生器と、
前記煙発生器により発生され帯電した煙粒子に電界を作用させるための電極と、を備え、
前記電界により煙粒子の流速を高めて該煙粒子を煙感知器に流入させることを特徴とする煙感知器検査装置。 In a smoke detector inspection apparatus for inspecting the performance of a smoke detector disposed in the inspection tank by flowing smoke particles into the inspection tank,
A smoke generator for generating smoke in the inspection tank;
An electrode for applying an electric field to smoke particles generated and charged by the smoke generator,
An apparatus for inspecting a smoke detector, wherein the smoke particles flow into the smoke detector by increasing the flow velocity of the smoke particles by the electric field. 前記検査槽内の煙濃度を検出する煙濃度センサを備え、前記センサによって検出された煙濃度の値に応じて前記電極に印加する電圧を制御することを特徴とする請求項１に記載の煙感知器検査装置。   The smoke according to claim 1, further comprising a smoke concentration sensor for detecting a smoke concentration in the inspection tank, wherein a voltage applied to the electrode is controlled in accordance with a value of the smoke concentration detected by the sensor. Sensor inspection device. 前記電極が前記検査槽内の煙粒子の移動方向に沿って複数配設されており、電圧を印加する電極を煙粒子の流速が高まるように順次切り替えることを特徴とする請求項１または請求項２に記載の煙感知器検査装置。   2. The electrode according to claim 1, wherein a plurality of the electrodes are arranged along a moving direction of the smoke particles in the inspection tank, and the electrodes to which the voltage is applied are sequentially switched so that the flow velocity of the smoke particles is increased. 2. The smoke detector inspection device according to 2. 前記電極は前記煙感知器の煙流入口に近接して配設されていることを特徴とする請求項１または請求項２に記載の煙感知器検査装置。   The smoke sensor inspection device according to claim 1, wherein the electrode is disposed in proximity to a smoke inlet of the smoke sensor. 前記検査槽内に煙攪拌用のファンを備えたことを特徴とする請求項１乃至請求項４のいずれか一項に記載の煙感知器検査装置。   The smoke detector inspection device according to any one of claims 1 to 4, wherein a fan for stirring the smoke is provided in the inspection tank.
JP2008166208A 2008-06-25 2008-06-25 Smoke sensor inspection device Withdrawn JP2010009225A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012185705A (en) * 2011-03-07 2012-09-27 Nohmi Bosai Ltd Smoking tester
CN105788200A (en) * 2016-05-18 2016-07-20 宁波科赛迪电子科技有限公司 Smoke alarm sensitivity detection device
US10084173B2 (en) 2015-02-25 2018-09-25 Samsung Sdi Co., Ltd. Battery pack
US10128483B2 (en) 2015-02-25 2018-11-13 Samsung Sdi Co., Ltd. Battery pack
US10305073B2 (en) 2015-02-25 2019-05-28 Samsung Sdi Co., Ltd. Battery pack including battery cells with terraces supported by support ribs
JP2021073613A (en) * 2021-02-03 2021-05-13 ホーチキ株式会社 Smoke detector

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012185705A (en) * 2011-03-07 2012-09-27 Nohmi Bosai Ltd Smoking tester
US10084173B2 (en) 2015-02-25 2018-09-25 Samsung Sdi Co., Ltd. Battery pack
US10128483B2 (en) 2015-02-25 2018-11-13 Samsung Sdi Co., Ltd. Battery pack
US10305073B2 (en) 2015-02-25 2019-05-28 Samsung Sdi Co., Ltd. Battery pack including battery cells with terraces supported by support ribs
CN105788200A (en) * 2016-05-18 2016-07-20 宁波科赛迪电子科技有限公司 Smoke alarm sensitivity detection device
JP2021073613A (en) * 2021-02-03 2021-05-13 ホーチキ株式会社 Smoke detector

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