JPH018853Y2 - - Google Patents
Info
- Publication number
- JPH018853Y2 JPH018853Y2 JP1981112101U JP11210181U JPH018853Y2 JP H018853 Y2 JPH018853 Y2 JP H018853Y2 JP 1981112101 U JP1981112101 U JP 1981112101U JP 11210181 U JP11210181 U JP 11210181U JP H018853 Y2 JPH018853 Y2 JP H018853Y2
- Authority
- JP
- Japan
- Prior art keywords
- solenoid valve
- power supply
- resistor
- diode
- relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003990 capacitor Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 1
Landscapes
- Control Of Combustion (AREA)
Description
【考案の詳細な説明】
この考案は自動点火手段を有する加熱調理器に
おいて、点火不良時に不着火状態を正確に検出し
てガスの流出を停止し安全を図り得るようにした
加熱調理器の安全装置に関する。[Detailed description of the invention] This invention is a heating cooker with an automatic ignition means that can accurately detect a misfire state in the event of an ignition failure and stop the outflow of gas to ensure safety. Regarding equipment.
ガスを使用する加熱調理器ににおいて、ガスコ
ツクに電磁弁を用い、電磁弁の開放に連動して電
子的な自動点火手段を作動させ、点火を行うよう
にした加熱調理器は公知であるが、何らかの原因
で点火不良が発生し、不着火状態が継続される
と、生ガスの流出による暴発の危険が存しきわめ
て危険であつた。このような危険を回避するため
に点火状態を検出する炎感知手段を用い、炎が検
出されない不着火状態時に前記電磁弁を閉弁して
ガスの流出を遮断するようにした安全装置は従来
種々提案されている。 A heating cooker using gas is known in which a solenoid valve is used in the gas cooker and an electronic automatic ignition means is operated in conjunction with the opening of the solenoid valve to ignite the gas. If an ignition failure occurs for some reason and the non-ignition state continues, there is a risk of an explosion due to the leakage of raw gas, which is extremely dangerous. In order to avoid such dangers, there have been various safety devices that use flame sensing means to detect the ignition state, and close the electromagnetic valve to cut off the outflow of gas when no flame is detected and there is no ignition. Proposed.
この考案は、かかる加熱調理器のための安全装
置の新規なる改良に関し、危険状態の正確なる検
出と、迅速なる危険回避作動を行い得るようにし
た安全装置を提供せんとするものであつて、以下
に図面を参図しつつ詳細に説明する。 This invention relates to a new improvement of a safety device for such a heating cooker, and aims to provide a safety device that can accurately detect a dangerous situation and quickly take action to avoid danger. A detailed description will be given below with reference to the drawings.
図において１は交流電源に接続された電源制御
回路であり、炎感知器３が直列に接続される。炎
感知器３の出力リレーRyの常開接点ａにメイン
バーナー用電磁弁MBを接続し、常閉接点ｂに電
子点火手段IGを接続し、共通接点ｃにはパイロ
ツトバーナー用補助電磁弁SBを接続する。これ
らの電磁弁MB，SB並びに電子点火手段IGは合
流して前記電源制御回路１の出力部４に接続され
る。尚出力リレーRyの共通接点ｃには直列にサ
ーモスイツチ５の一端が接続され、サーモスイツ
チ５の他端は交流電源ラインＢに接続される。 In the figure, 1 is a power supply control circuit connected to an AC power source, and a flame detector 3 is connected in series. Connect the main burner solenoid valve MB to the normally open contact a of the output relay Ry of the flame detector 3, connect the electronic ignition means IG to the normally closed contact b, and connect the pilot burner auxiliary solenoid valve SB to the common contact c. Connecting. These electromagnetic valves MB, SB and electronic ignition means IG are connected to the output section 4 of the power supply control circuit 1. Note that one end of a thermoswitch 5 is connected in series to the common contact c of the output relay Ry, and the other end of the thermoswitch 5 is connected to the AC power line B.
前記出力リレーRyの常開接点ａには、更に第
１ダイオードD1のアノードが接続され、該第１
ダイオードD1のカソードは直列に接続された第
１、第２の抵抗R1，R2を介して電源ラインＢに
接続される。又、出力リレーRyの共通接点ｃに
は、更に第２ダイオードD2のカソードが接続さ
れ、アノードには第３の抵抗R3が直列に接続さ
れる。第３の抵抗R3の一端は、前記第１、第２
の抵抗R1，R2の中間点ｄに接続され、又第２の
抵抗R2に並列にコンデンサＣを接続し、この中
間点ｄを出力ポイントとして、前記電源制御回路
１の入力部６に電気信号が入力される。 The anode of a first diode D1 is further connected to the normally open contact a of the output relay Ry, and the anode of the first diode D1 is connected to the normally open contact a of the output relay Ry.
The cathode of the diode D 1 is connected to the power supply line B via first and second resistors R 1 and R 2 connected in series. Furthermore, the common contact c of the output relay Ry is further connected to the cathode of a second diode D2 , and the anode is connected in series to a third resistor R3 . One end of the third resistor R3 is connected to the first and second resistor R3.
A capacitor C is connected to the intermediate point d between the resistors R 1 and R 2 , and a capacitor C is connected in parallel to the second resistor R 2 , and this intermediate point d is used as an output point to be connected to the input section 6 of the power supply control circuit 1. An electrical signal is input.
第１図において、電源スイツチ７をONにし、
Ａ，Ｂラインに交流電源を印加すると、パイロツ
トバーナー用電磁弁SBは開弁し、点火手段IGが
動作し、パイロツトバーナーが点火される。パイ
ロツトバーナーが点火すると、炎感知器３がこれ
を感知検出して、出力リレーRyを動作させて常
閉接点ｂから常開接点ａへ切換わる。これによつ
て、メインバーナー用主電磁弁MBが動作し、サ
ーモスイツチ５に設定された温度まで庫内温度の
上昇が行われる。この状態においては、サーモス
イツチ５が閉じているため、出力リレーRyの常
開接点ａから共通接点ｃ、サーモスイツチ５を結
ぶ回路が閉回路となつており、出力ポイントｄ点
は零電圧であつて、電源制御回路は動作しない。 In Fig. 1, turn on the power switch 7,
When AC power is applied to the A and B lines, the pilot burner solenoid valve SB opens, the ignition means IG operates, and the pilot burner is ignited. When the pilot burner ignites, the flame sensor 3 senses and detects this, operates the output relay Ry, and switches from the normally closed contact b to the normally open contact a. As a result, the main solenoid valve MB for the main burner operates, and the temperature inside the refrigerator is raised to the temperature set in the thermoswitch 5. In this state, the thermo switch 5 is closed, so the circuit connecting the normally open contact a of the output relay Ry to the common contact c and the thermo switch 5 is a closed circuit, and the output point d is at zero voltage. Therefore, the power supply control circuit does not operate.
もし、何等かの原因によりバーナーの不着火が
生じた場合には、前述の炎感知器３の出力リレー
Ryが不動作である結果、感知電流は主電磁弁
MBを通り第１ダイオードD1で整流され、第１、
第２の抵抗R1，R2で分圧され、第３の抵抗R3に
直流電圧が発生する。このとき、第２の抵抗R2
と並列にコンデンサＣが接続されているため、第
１の抵抗R1とコンデンサＣの時定数のもとに、
前記第２の抵抗R2に発生した直流電圧が第２図
に実線で示すように上昇し、感知可能電圧Nvに
達すると、電源制御回路に入力されて、出力Ａラ
インの電源を切り、全回路がOFFされる。正常
動作時においては、第２図に示すスタートからＳ
点の所まで感知電圧は上昇するが着火と同時に炎
感知器３が動作し、出力リレーRyの接点が常開
接点ａに切換えるため、出力ポイントｄ点の感知
電圧はＳ点から点線で示すように減衰して行く。 If the burner fails to ignite for some reason, the output relay of the flame detector 3 mentioned above will be activated.
As a result of Ry being inoperable, the sensed current is
It passes through MB and is rectified by the first diode D1 , and the first,
The voltage is divided by the second resistors R 1 and R 2 , and a DC voltage is generated at the third resistor R 3 . At this time, the second resistance R 2
Since capacitor C is connected in parallel with , under the time constant of first resistor R 1 and capacitor C,
When the DC voltage generated in the second resistor R2 rises as shown by the solid line in Figure 2 and reaches the detectable voltage Nv, it is input to the power supply control circuit, turns off the power to the output A line, and completely shuts off the voltage. The circuit is turned off. During normal operation, S starts from the start shown in Figure 2.
The sensing voltage rises up to point d, but the flame detector 3 operates at the same time as ignition, and the contact of output relay Ry switches to normally open contact a, so the sensing voltage at output point d increases as shown by the dotted line from point S. It decays to .
メインバーナーが着火し、サーモスイツチ５の
設定温度に達し、サーモスイツチがOFFになる
と、バーナーが消火し、炎感知器３もOFFにな
るため、出力リレーRyの接点は常閉接点ｂに移
り、ｄ点において第１、第２ダイオードD1，D2
が逆方向にあるため、第２の抵抗R2の両端には
交流が発生する。しかしコンデンサＣがあるため
交流はコンデンサＣによりバイパスされ、第２の
抵抗R2には実際には電圧は発生しない。したが
つて、電源制御回路１には入力信号が入らず電源
制御回路は動作しない。 When the main burner ignites and reaches the set temperature of thermoswitch 5, and the thermoswitch is turned off, the burner is extinguished and the flame detector 3 is also turned off, so the contact of output relay Ry moves to normally closed contact b. At point d, the first and second diodes D 1 and D 2
are in the opposite direction, an alternating current is generated across the second resistor R2 . However, due to the presence of the capacitor C, the alternating current is bypassed by the capacitor C, and no voltage is actually generated across the second resistor R2 . Therefore, no input signal is input to the power supply control circuit 1, and the power supply control circuit does not operate.
以上のようにこの考案の加熱調理器の安全装置
によれば、何等かの原因により、バーナーの不着
火状態が発生すると、抵抗とコンデンサでもたら
される時定数のもとに感知電圧を上昇させ一定電
圧値において全回路をOFFするようにしてある
ので、不着火状態の継続による危険の発生を回避
することが出来ると共に、回路の構成が簡単であ
るためコストの低下を図り得ると共に確実なる動
作を期待出来、この種の安全装置として信頼性の
高いものを提供出来るのである。 As described above, according to the safety device of this heating cooker, if a burner misfire occurs due to some reason, the sensing voltage is increased based on the time constant provided by the resistor and capacitor, and the voltage is kept constant. Since all the circuits are turned OFF at the voltage value, it is possible to avoid the occurrence of danger due to the continuation of a non-ignition state, and the circuit configuration is simple, which reduces costs and ensures reliable operation. This is a promising and highly reliable safety device of this type.
第１図はこの考案に係る安全装置の回路図、第
２図はｄ点の発生電圧を示す線図である。
１……電源制御回路、３……炎感知器、５……
サーモスイツチ、MB……主電磁弁、SB……補
助電磁弁、Ry……出力リレー。
FIG. 1 is a circuit diagram of the safety device according to this invention, and FIG. 2 is a diagram showing the generated voltage at point d. 1...Power control circuit, 3...Flame detector, 5...
Thermoswitch, MB...Main solenoid valve, SB...Auxiliary solenoid valve, Ry...Output relay.
Claims (1)
を接続し、該炎感知器３によつて作動されるリレ
ーRyの常閉接点ｂと電源制御回路１との間に電
子点火手段IGを、共通接点ｃと炎感知器３との
間にサーモスイツチ５をそれぞれ直列に接続し、
リレーRyの常開接点ａと電源制御回路１との間
に主電磁弁MBを接続し、主電磁弁MBと炎感知
器３との間に第１ダイオードD1と第１、第２の
抵抗R1，R2とを直列に接続し、該第１、第２の
抵抗R1，R2の中間点ｄとリレーRyの共通接点ｃ
との間に第３の抵抗R3と第２ダイオードD2を接
続し、更に前記第２の抵抗R2と並列にコンデン
サＣを接続し、第１ダイオードD1のアノードを
前記主電磁弁MBに、第２ダイオードD2のカソー
ドをリレーRyの共通接点ｃに接続したことを特
徴とする加熱調理器の安全装置。 A flame detector 3 is connected in series with the power supply control circuit 1 to the commercial power supply.
An electronic ignition means IG is connected between the normally closed contact b of the relay Ry activated by the flame detector 3 and the power supply control circuit 1, and a thermostat is connected between the common contact c and the flame detector 3. Connect the switches 5 in series,
A main solenoid valve MB is connected between the normally open contact a of the relay Ry and the power supply control circuit 1, and a first diode D1 and a first and second resistor are connected between the main solenoid valve MB and the flame detector 3. R 1 and R 2 are connected in series, and the intermediate point d between the first and second resistors R 1 and R 2 and the common contact c of the relay Ry
A third resistor R3 and a second diode D2 are connected between the main solenoid valve MB, a capacitor C is connected in parallel with the second resistor R2 , and the anode of the first diode D1 is connected to the main solenoid valve MB. A safety device for a heating cooker, characterized in that the cathode of the second diode D2 is connected to the common contact c of the relay Ry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11210181U JPS5821757U (en) | 1981-07-27 | 1981-07-27 | Safety device for heating cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11210181U JPS5821757U (en) | 1981-07-27 | 1981-07-27 | Safety device for heating cooker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5821757U JPS5821757U (en) | 1983-02-10 |
| JPH018853Y2 true JPH018853Y2 (en) | 1989-03-09 |
Family
ID=29906443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11210181U Granted JPS5821757U (en) | 1981-07-27 | 1981-07-27 | Safety device for heating cooker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5821757U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6048820U (en) * | 1983-09-14 | 1985-04-05 | 株式会社 岩田良 | Piggy bank/storage box |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5284044U (en) * | 1975-12-19 | 1977-06-23 | ||
| JPS5752527Y2 (en) * | 1977-08-27 | 1982-11-15 |
-
1981
- 1981-07-27 JP JP11210181U patent/JPS5821757U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5821757U (en) | 1983-02-10 |
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