TWI546503B - Gas valve control method for gas appliance - Google Patents

Description

用於瓦斯器具之瓦斯閥控制方法 Gas valve control method for gas appliances

本發明係與瓦斯器具控制有關；特別是指一種用於瓦斯器具之瓦斯閥控制方法。 The invention relates to the control of gas appliances; in particular to a gas valve control method for gas appliances.

按，瓦斯器具相較於使用電能的加熱器具，具有節省能源、熱效率高、即時使用等優點，已被廣泛地使用於加熱的領域。 According to the heating device using electric energy, the gas appliance has the advantages of energy saving, high thermal efficiency, instant use, etc., and has been widely used in the field of heating.

習用的瓦斯器具1包括一燃燒器10、一點火電極12、一瓦斯閥14與一控制器16。該燃燒器10燃燒瓦斯產生火焰，該點火電極12供引燃該燃燒器10輸出的瓦斯，該瓦斯閥14分別連通該燃燒器10與一瓦斯源100。該瓦斯源100包括一瓦斯管路102與一調壓閥104，該調壓閥將該瓦斯管路102的瓦斯壓力降壓後注入該瓦斯閥14。該控制器16電性連接該點火電極12與該瓦斯閥14，用以控制該點火電極12對該燃燒器10點火以及控制該瓦斯閥14調節流通至該燃燒器10的瓦斯流量。 A conventional gas appliance 1 includes a burner 10, an ignition electrode 12, a gas valve 14 and a controller 16. The burner 10 burns a gas to generate a flame, and the ignition electrode 12 is for igniting the gas output from the burner 10, and the gas valve 14 communicates with the burner 10 and a gas source 100, respectively. The gas source 100 includes a gas line 102 and a pressure regulating valve 104 that is stepped down by the gas pressure of the gas line 102 and injected into the gas valve 14. The controller 16 is electrically connected to the ignition electrode 12 and the gas valve 14 for controlling the ignition electrode 12 to ignite the burner 10 and controlling the gas valve 14 to regulate the flow of gas to the burner 10.

為維持瓦斯器具的使用安全，瓦斯器具安裝地所在之國家皆會制定國家標準，以規範瓦斯器具所連接的瓦斯源之壓力，亦即，調壓閥所輸出的壓力。在瓦斯源壓力符合國家標準的情況下，燃燒器所產生的一氧化碳濃度將會在安全值以下，以確保使用者的使用安全。 In order to maintain the safety of the gas appliance, the country where the gas appliance is installed will have national standards to regulate the pressure of the gas source connected to the gas appliance, that is, the pressure output by the pressure regulator. When the gas source pressure meets the national standard, the concentration of carbon monoxide produced by the burner will be below the safe value to ensure the safety of the user.

瓦斯器具1在安裝時，若瓦斯源100的壓力超出國家標準(例如，未選用符合國家標準的調壓閥或調壓閥 故障)，將使得注入該瓦斯閥14的瓦斯壓力過高，造成瓦斯燃燒不完全，一氧化碳濃度過高。惟，習用的瓦斯器具1並無法檢知瓦斯源100壓力是否過高，即使該調壓閥104輸出的壓力過高，該控制器16仍會控制瓦斯閥14開啟，讓瓦斯流通至燃燒器10燃燒。如此一來，將造成該燃燒器10所產生的一氧化碳濃度過高，而有造成人員一氧化碳中毒之虞。是以，習用的瓦斯器具1之設計仍未臻完善，尚有待改進之處。 When the gas appliance 1 is installed, if the pressure of the gas source 100 exceeds the national standard (for example, the pressure regulating valve or the pressure regulating valve that meets the national standard is not selected. Failure) will cause the gas pressure injected into the gas valve 14 to be too high, resulting in incomplete combustion of the gas and excessive concentration of carbon monoxide. However, the conventional gas appliance 1 cannot detect whether the pressure of the gas source 100 is too high, and even if the pressure outputted by the pressure regulating valve 104 is too high, the controller 16 controls the gas valve 14 to open, allowing gas to flow to the burner 10. combustion. As a result, the concentration of carbon monoxide generated by the burner 10 is too high, and the carbon monoxide poisoning of the personnel is caused. Therefore, the design of the conventional gas appliance 1 is still not perfect, and there is still room for improvement.

有鑑於此，本發明之目的用於提供一種用於瓦斯器具之瓦斯閥控制方法，有效地增加瓦斯器具的使用安全。 In view of this, the object of the present invention is to provide a gas valve control method for a gas appliance, which effectively increases the safety of use of a gas appliance.

緣以達成上述目的，本發明所提供用於瓦斯器具之瓦斯閥控制方法，該瓦斯閥內部設有一瓦斯通道，該瓦斯通道之兩端分別連通至一燃燒器與一瓦斯源，該瓦斯通道具有一閥口，一閥塞受該瓦斯源提供的一第一作用力而遮蔽該閥口以阻斷該瓦斯通道；該瓦斯閥控制方法包含下列步驟：A、提供一第二作用力於該閥塞，該第二作用力的方向與該第一作用力的方向相反；B、對該燃燒器點火；C、偵測該燃燒器之出火口是否有火焰形成，若未偵測到火焰，則解除該第二作用力。 In order to achieve the above object, the present invention provides a gas valve control method for a gas appliance, wherein the gas valve is internally provided with a gas passage, and the two ends of the gas passage are respectively connected to a burner and a gas source, and the gas passage has a valve port, a valve plug is shielded from the valve port by a first force provided by the gas source to block the gas passage; the gas valve control method comprises the following steps: A, providing a second force to the valve a plug, the direction of the second force is opposite to the direction of the first force; B, igniting the burner; C, detecting whether a flame is formed at the burner of the burner, and if no flame is detected, The second force is released.

本發明之效果在於瓦斯源壓力過高造成第一作用力大於第二作用力時，瓦斯閥的閥口將無法開啟，有效地增加瓦斯器具的使用安全。 The effect of the invention is that when the gas source pressure is too high and the first force is greater than the second force, the valve port of the gas valve cannot be opened, which effectively increases the safety of the gas appliance.

〔習用〕 [Use]

1‧‧‧瓦斯器具 1‧‧ ‧ gas appliances

10‧‧‧燃燒器 10‧‧‧ burner

12‧‧‧點火電極 12‧‧‧Ignition electrode

14‧‧‧瓦斯閥 14‧‧‧ gas valve

16‧‧‧控制器 16‧‧‧ Controller

〔本發明〕 〔this invention〕

2‧‧‧瓦斯器具 2‧‧ ‧ gas appliances

20‧‧‧加熱單元 20‧‧‧heating unit

22‧‧‧熱交換器 22‧‧‧ heat exchanger

222‧‧‧吸熱片 222‧‧‧heat absorbing film

224‧‧‧輸水管 224‧‧‧Water pipes

24‧‧‧燃燒器 24‧‧‧ burner

26‧‧‧瓦斯閥 26‧‧‧ gas valve

28‧‧‧閥體 28‧‧‧ valve body

282‧‧‧瓦斯通道 282‧‧‧ gas channel

282a‧‧‧閥口 282a‧‧‧port

284‧‧‧入口端 284‧‧‧ entrance end

286‧‧‧出口端 286‧‧‧export end

30‧‧‧作動單元 30‧‧‧Operating unit

32‧‧‧金屬線圈 32‧‧‧Metal coil

34‧‧‧磁鐵 34‧‧‧ magnet

36‧‧‧頂桿 36‧‧‧Pole

38‧‧‧第一彈簧 38‧‧‧First spring

40‧‧‧第二彈簧 40‧‧‧Second spring

42‧‧‧閥塞 42‧‧‧ Valve plug

44‧‧‧彈性膜 44‧‧‧elastic film

442‧‧‧第一表面 442‧‧‧ first surface

444‧‧‧第二表面 444‧‧‧ second surface

446‧‧‧擋板 446‧‧ ‧ baffle

46‧‧‧塞件 46‧‧‧plugs

462‧‧‧第一端 462‧‧‧ first end

464‧‧‧第二端 464‧‧‧second end

48‧‧‧鼓風機 48‧‧‧Blowers

50‧‧‧點火感應針 50‧‧‧Ignition induction needle

52‧‧‧入水管 52‧‧‧Water inlet

54‧‧‧出水管 54‧‧‧Outlet

56‧‧‧水龍頭 56‧‧‧Water tap

582~586‧‧‧偵測器 582~586‧‧‧Detector

60‧‧‧控制器 60‧‧‧ Controller

62‧‧‧警示單元 62‧‧‧Warning unit

64‧‧‧瓦斯閥 64‧‧‧ gas valve

66‧‧‧閥體 66‧‧‧ valve body

662‧‧‧螺孔 662‧‧‧ screw holes

664‧‧‧閥口 664‧‧‧ valve port

68‧‧‧作動單元 68‧‧‧Operating unit

70‧‧‧步進馬達 70‧‧‧stepper motor

702‧‧‧轉軸 702‧‧‧ shaft

72‧‧‧螺塊 72‧‧‧Snail

722‧‧‧穿孔 722‧‧‧Perforation

74‧‧‧推塊 74‧‧‧ push block

76‧‧‧彈簧 76‧‧‧ Spring

78‧‧‧彈性膜 78‧‧‧elastic film

80‧‧‧塞件 80‧‧‧plugs

F1‧‧‧第一作用力 F1‧‧‧ first force

F2‧‧‧第二作用力 F2‧‧‧second force

100‧‧‧瓦斯源 100‧‧ ‧ gas source

102‧‧‧瓦斯管路 102‧‧‧ gas pipeline

104‧‧‧調壓閥 104‧‧‧pressure regulator

圖1係習用的瓦斯器具示意圖。 Figure 1 is a schematic view of a conventional gas appliance.

圖2係本發明一較佳實施例所應用的瓦斯器具示意圖。 2 is a schematic view of a gas appliance to which a preferred embodiment of the present invention is applied.

圖3係上述較佳實施例的瓦斯器具之瓦斯閥示意圖。 Figure 3 is a schematic view of a gas valve of the gas appliance of the above preferred embodiment.

圖4係圖3之局部放大圖，揭示閥口被遮蔽。 Figure 4 is a partial enlarged view of Figure 3, revealing that the valve port is obscured.

圖5係一示意圖，揭示瓦斯閥的閥口開啟。 Figure 5 is a schematic view showing the opening of the valve opening of the gas valve.

圖6係圖5之局部放大圖。 Figure 6 is a partial enlarged view of Figure 5.

圖7係本發明一較佳實施例之瓦斯閥控制方法流程圖。 Figure 7 is a flow chart showing a method of controlling a gas valve according to a preferred embodiment of the present invention.

圖8係一示意圖，揭示另一種態樣之瓦斯閥的閥口開啟。 Figure 8 is a schematic view showing the opening of the valve port of another aspect of the gas valve.

為能更清楚地說明本發明，茲舉較佳實施例並配合圖示詳細說明如后，請參圖2所示，為本發明一較佳實施例所應用的瓦斯器具2，該瓦斯器具2為一熱水器，包含有一加熱單元20、一入水管52、一出水管54、複數個偵測器582,584,586、一控制器60與一警示單元62。 In order to explain the present invention more clearly, the preferred embodiment will be described in detail with reference to the accompanying drawings. FIG. 2 is a gas appliance 2 applied to a preferred embodiment of the present invention. For a water heater, there is a heating unit 20, a water inlet pipe 52, a water outlet pipe 54, a plurality of detectors 582, 584, 586, a controller 60 and a warning unit 62.

該加熱單元20包含有一熱交換器22、一燃燒器24、一瓦斯閥26、一鼓風機48與一點火感應針50。該熱交換器22具有複數個吸熱片222及一輸水管224穿設該些吸熱片222。該燃燒器24位於該熱交換器22下方，用於燃燒瓦斯加熱該熱交換器22。 The heating unit 20 includes a heat exchanger 22, a burner 24, a gas valve 26, a blower 48 and an ignition induction needle 50. The heat exchanger 22 has a plurality of heat absorbing sheets 222 and a water conduit 224 through which the heat absorbing sheets 222 are inserted. The burner 24 is located below the heat exchanger 22 for combustion of the gas to heat the heat exchanger 22.

請配合圖3至圖6所示，該瓦斯閥26包括一閥體28、一作動單元30與一閥塞42。該閥體28具有一瓦斯通道282，該瓦斯通道282具有一閥口282a。該瓦斯通道282的兩端於該閥體28上分別形成一入口端284與一出口端286，該入口端284連通一瓦斯源100，該出口端286連 通該燃燒器24。該瓦斯源100在本實施例中包括一瓦斯管路102與一調壓閥104，該調壓閥104將該瓦斯管路102的瓦斯壓力降壓後注入該閥體28中。 3 to 6, the gas valve 26 includes a valve body 28, an actuating unit 30 and a valve plug 42. The valve body 28 has a gas passage 282 having a valve port 282a. An inlet end 284 and an outlet end 286 are formed on the valve body 28 at both ends of the gas passage 282. The inlet end 284 is connected to a gas source 100. The outlet end 286 is connected. The burner 24 is passed through. The gas source 100 includes a gas line 102 and a pressure regulating valve 104 in the present embodiment. The pressure regulating valve 104 reduces the gas pressure of the gas line 102 and injects it into the valve body 28.

本實施例中，該作動單元30包含有一金屬線圈32、一磁鐵34、一頂桿36、一第一彈簧38與第二彈簧40。該磁鐵34與該頂桿36共同構成一移動件，該磁鐵34構成該移動件的磁性部。該磁鐵34穿設於該金屬線圈32中，該金屬線圈32經通電後可產生磁場帶動該磁鐵34移動。該磁鐵34之一端頂抵該第一彈簧38，另一端頂抵該頂桿36，該第二彈簧40頂抵該頂桿36與該閥塞42。該第一彈簧38與該第二彈簧40分別構成二彈性件，使該磁鐵34與該頂桿36可穩定地移動。實務上，該作動單元30亦可採用步進馬達來帶動該頂桿36移動。 In this embodiment, the actuating unit 30 includes a metal coil 32, a magnet 34, a jack 36, a first spring 38 and a second spring 40. The magnet 34 and the jack 36 together form a moving member which constitutes the magnetic portion of the moving member. The magnet 34 is disposed in the metal coil 32. After the metal coil 32 is energized, a magnetic field is generated to drive the magnet 34 to move. One end of the magnet 34 abuts against the first spring 38 and the other end abuts against the jack 36. The second spring 40 abuts against the jack 36 and the valve plug 42. The first spring 38 and the second spring 40 respectively form two elastic members, so that the magnet 34 and the plunger 36 can be stably moved. In practice, the actuation unit 30 can also use a stepping motor to drive the jack 36 to move.

該閥塞42包括一彈性膜44與一塞件46，該彈性膜44連接於該閥體28的瓦斯通道282內壁，該彈性膜44具有相對的一第一表面442與一第二表面444，該第一表面442面對該閥口282a，該第二表面444上設有一擋板，該第二彈簧40頂抵於該擋板446上。該塞件46具有一第一端462與一第二端464，該第一端462連接該彈性膜44，該第二端464穿過該閥口282a，該第二端464的尺寸大於該閥口282a的口徑，該塞件46受該彈性膜44帶動而使該第二端464遮蔽該閥口282a(圖3、圖4參照)或開啟該閥口282a(圖5、圖6參照)，該閥口282a的開啟程度則對應瓦斯流量。 The valve plug 42 includes an elastic film 44 and a plug member 46. The elastic film 44 is connected to the inner wall of the gas passage 282 of the valve body 28. The elastic film 44 has a first surface 442 and a second surface 444 opposite to each other. The first surface 442 faces the valve opening 282a. The second surface 444 is provided with a baffle. The second spring 40 abuts against the baffle 446. The plug member 46 has a first end 462 and a second end 464. The first end 462 is connected to the elastic membrane 44. The second end 464 passes through the valve port 282a. The second end 464 is larger than the valve. The diameter of the opening 282a, the plug 46 is driven by the elastic film 44, so that the second end 464 shields the valve opening 282a (refer to Figures 3 and 4) or opens the valve opening 282a (refer to Figures 5 and 6). The degree of opening of the valve port 282a corresponds to the gas flow rate.

藉由控制輸入至該金屬線圈32的電流方向，可控制該磁鐵34移動的方向，控制輸入至該金屬線圈32的電流大小，可控制該磁鐵34移動的距離。該磁鐵34移動時，將間接帶動該彈性膜44移動，使該閥塞42的塞件46位移， 而調整該閥口282a的開啟程度以調節通過的瓦斯量。 By controlling the direction of the current input to the metal coil 32, the direction in which the magnet 34 moves can be controlled, and the magnitude of the current input to the metal coil 32 can be controlled to control the distance over which the magnet 34 moves. When the magnet 34 moves, the elastic film 44 is indirectly moved to displace the plug 46 of the valve plug 42. The degree of opening of the valve port 282a is adjusted to adjust the amount of gas passing through.

當該瓦斯源100的瓦斯注入該閥體28的入口端284後，該瓦斯源100之壓力作用於該彈性膜44的該第一表面442上形成一第一作用力F1，使該塞件46的第二端464抵接該閥口282a的周圍而遮蔽該閥口282a。 When the gas of the gas source 100 is injected into the inlet end 284 of the valve body 28, the pressure of the gas source 100 acts on the first surface 442 of the elastic film 44 to form a first force F1, so that the plug member 46 The second end 464 abuts the periphery of the valve port 282a to shield the valve port 282a.

該鼓風機48連通該燃燒器24，其係受控制而改變其運轉馬達的轉速以調節供輸至該燃燒器24的空氣量。該點火感應針50設於該燃燒器24附近，用以產生火花點燃自該燃燒器24出火口輸出的瓦斯以及偵測該燃燒器24產生的火焰。 The blower 48 is in communication with the combustor 24, which is controlled to vary the rotational speed of its operating motor to regulate the amount of air supplied to the combustor 24. The ignition induction pin 50 is disposed adjacent to the burner 24 for generating a spark to ignite the gas output from the burner port of the burner 24 and detecting the flame generated by the burner 24.

該入水管52與該出水管54，分別連通該熱交換器22的輸水管224，該入水管52供水注入，所注入的水流經輸水管224自該出水管54輸出，該出水管54連通至一水龍頭56。該些偵測器582,584,586分別偵測該入水管52的入水溫、該出水管54的出水溫及該入水管52的水流量。 The water inlet pipe 52 and the water outlet pipe 54 respectively communicate with the water pipe 224 of the heat exchanger 22, and the water inlet pipe 52 is supplied with water, and the injected water flows out of the water outlet pipe 224 through the water pipe 224, and the water outlet pipe 54 is connected to One tap 56. The detectors 582, 584, 586 respectively detect the water inlet temperature of the water inlet pipe 52, the water outlet temperature of the water outlet pipe 54, and the water flow rate of the water inlet pipe 52.

該控制器60電性連接該點火感應針50、該瓦斯閥26的金屬線圈32、該鼓風機48與該些偵測器582,584,586。該控制器60控制該點火感應針50進行點火，及偵測該點火感應針50是否感測到火焰，以及依據該些偵測器582,584,586所測得的入水溫度、出水溫度及水流量控制該瓦斯閥26的閥口282a開啟程度與該鼓風機48之運轉馬達的轉速，使出水溫度達到使用者所設定的溫度。 The controller 60 is electrically connected to the ignition induction pin 50, the metal coil 32 of the gas valve 26, the blower 48 and the detectors 582, 584, 586. The controller 60 controls the ignition sensor pin 50 to ignite, and detects whether the ignition sensor pin 50 senses the flame, and controls the gas according to the inlet water temperature, the outlet water temperature and the water flow measured by the detectors 582, 584, 586. The valve port 282a of the valve 26 is opened to the same extent as the operating motor of the blower 48, so that the outlet water temperature reaches the temperature set by the user.

該警示單元62在本實施例中為一顯示器，電性連接該控制器60，用於顯示該控制器60輸出的訊息，當然，警示單元62亦可為一蜂鳴器或顯示器與蜂鳴器並存。 In this embodiment, the warning unit 62 is a display electrically connected to the controller 60 for displaying the message output by the controller 60. Of course, the warning unit 62 can also be a buzzer or a display and a buzzer. coexist.

藉由上述之瓦斯器具2，即可執行圖7所示之瓦斯閥控制方法。 The gas valve control method shown in Fig. 7 can be executed by the gas appliance 2 described above.

在瓦斯器具2開始運作時(開啟該水龍頭56 後)，該控制器60控制輸入該金屬線圈32的電流，以驅動該磁鐵34推擠該頂桿36，透過該第二彈簧40及該擋板446提供一第二作用力F2於該彈性膜44的第二表面444上，該第二作用力F2的方向與該瓦斯源100的瓦斯壓力產生的第一作用力F1的方向相反。 When the gas appliance 2 starts to operate (turn on the tap 56) Thereafter, the controller 60 controls the current input to the metal coil 32 to drive the magnet 34 to push the jack 36, and the second spring 40 and the shutter 446 provide a second force F2 to the elastic film. On the second surface 444 of 44, the direction of the second force F2 is opposite to the direction of the first force F1 generated by the gas pressure of the gas source 100.

輸入該金屬線圈32的電流產生的第二作用力F2以略大於該瓦斯源100的壓力在一基準壓力以下時產生的第一作用力F1為佳。本實施例中，該基準壓力為瓦斯器具2安裝所在國家訂定的國家標準。藉此，當該瓦斯源100輸出至該瓦斯閥26的壓力大於該基準壓力時，作用於該閥塞42的第一作用力F1將大於該作動單元30提供的該第二作用力F2，換言之，該第二作用力F2不足以帶動該閥塞42的塞件46移動，此時，該塞件46仍遮蔽該閥口282a，使瓦斯無法流通至該燃燒器24(圖3、圖4參照)。當該瓦斯源100的壓力不超過該基準壓力時，該第一作用力F1將小於該第二作用力F2，該作動單元30可順利地帶動該閥塞42的塞件46，使瓦斯通過該閥口282a流通至該燃燒器24(圖5、圖6參照)。 It is preferable that the second force F2 generated by the current input to the metal coil 32 is slightly larger than the first force F1 generated when the pressure of the gas source 100 is less than or equal to a reference pressure. In this embodiment, the reference pressure is a national standard set by the country in which the gas appliance 2 is installed. Therefore, when the pressure output from the gas source 100 to the gas valve 26 is greater than the reference pressure, the first force F1 acting on the valve plug 42 will be greater than the second force F2 provided by the actuation unit 30, in other words. The second force F2 is insufficient to drive the plug 46 of the valve plug 42 to move. At this time, the plug 46 still shields the valve port 282a, so that gas cannot flow to the burner 24 (refer to FIGS. 3 and 4). ). When the pressure of the gas source 100 does not exceed the reference pressure, the first force F1 will be smaller than the second force F2, and the actuating unit 30 can smoothly drive the plug 46 of the valve plug 42 to pass the gas through the valve. The valve port 282a flows to the burner 24 (see Figs. 5 and 6).

在控制該作動單元30提供該第二作用力予該閥塞42後，該控制器60控制該點火感應針50對該燃燒器24放電，以產生火花。 After controlling the actuation unit 30 to provide the second force to the valve plug 42, the controller 60 controls the ignition induction needle 50 to discharge the burner 24 to generate a spark.

接著，該控制器60透過該點火感應針50偵測該燃燒器24之出火口是否有火焰形成，若偵測到火焰代表該瓦斯源100的壓力在該基準壓力以下，該瓦斯閥26的閥口282a正常開啟，此時，該控制器60即可對加熱單元20進行後續的加熱控制。 Then, the controller 60 detects whether the flame exit of the burner 24 is formed by the ignition sensor pin 50. If the flame is detected to represent the pressure of the gas source 100 below the reference pressure, the valve of the gas valve 26 The port 282a is normally opened, at which time the controller 60 can perform subsequent heating control of the heating unit 20.

若未偵測到火焰代表該瓦斯源100的壓力大於該基準壓力，所提供的第二作用力F2無法開啟該閥口 282a，瓦斯無法流通至該燃燒器24。此時，該控制器60停止輸出電流至該瓦斯閥的金屬線圈32，以解除該第二作用力F2，藉此，讓該瓦斯閥26維持阻斷瓦斯，如此即可有效地避免瓦斯源100的壓力過大仍進行燃燒造成瓦斯燃燒不完全，致使一氧化碳濃度升高。 If the flame is not detected to represent that the pressure of the gas source 100 is greater than the reference pressure, the second force F2 provided cannot open the valve port. At 282a, gas cannot flow to the burner 24. At this time, the controller 60 stops outputting current to the metal coil 32 of the gas valve to release the second force F2, thereby allowing the gas valve 26 to maintain blocking gas, so that the gas source 100 can be effectively avoided. Excessive pressure is still burning, resulting in incomplete combustion of gas, resulting in an increase in carbon monoxide concentration.

此外，在未偵測到火焰後，該控制器60透過該警示單元62發出一警示訊息，以提醒使用者瓦斯源100的壓力過高，無法使用瓦斯器具2，必須換裝符合國家標準的調壓閥，以將該瓦斯源100的壓力降低至該基準壓力以下，方可再次使用瓦斯器具。 In addition, after the flame is not detected, the controller 60 sends a warning message through the warning unit 62 to remind the user that the pressure of the gas source 100 is too high to use the gas appliance 2, and must be replaced with a national standard. The pressure valve is used to lower the pressure of the gas source 100 below the reference pressure before the gas appliance can be used again.

在前述之瓦斯閥26的作動單元30係以磁場作用於移動件的方式帶動閥塞42移動，實務上，亦可採用如圖8所示的瓦斯閥64，其中，該瓦斯閥64的閥體66中具有一螺孔662，該瓦斯閥64的作動單元68包括一步進馬達70、一螺塊72、一推塊74與一彈簧76。該步進馬達70的轉軸702穿設於該螺塊72的穿孔722中，該螺塊72外周面具有螺紋與該螺孔662結合，該推塊74一端連接於彈性膜78，另一端伸入該螺孔662中抵接該螺塊72。該彈簧76兩端抵接於該推塊74及該彈性膜78，該螺塊72、該推塊74及該彈簧76共同構成一移動件。藉此，控制該步進馬達70使該轉軸702帶動螺塊72於該螺孔662中朝向該彈性膜78的方向移動時，將推動該推塊74提供第二作用力於彈性膜78上；反之，控制該轉軸702反轉帶動螺塊72朝反方向移動時，該彈簧76推抵該推塊74朝相反於彈性膜78的方向移動，使塞件80與閥口664之間的間隙減小進而遮蔽閥口664。 In the operation unit 30 of the gas valve 26 described above, the valve plug 42 is moved by a magnetic field acting on the moving member. In practice, a gas valve 64 as shown in FIG. 8 may be used, wherein the valve body of the gas valve 64 is used. 66 has a screw hole 662. The actuation unit 68 of the gas valve 64 includes a stepping motor 70, a screw block 72, a push block 74 and a spring 76. The rotating shaft 702 of the stepping motor 70 is disposed in the through hole 722 of the screw block 72. The outer peripheral surface of the screw block 72 has a thread and the screw hole 662. The pushing block 74 is connected at one end to the elastic film 78 and at the other end. The screw hole 662 abuts the screw block 72. The spring 76 abuts against the push block 74 and the elastic film 78. The screw block 72, the push block 74 and the spring 76 together form a moving member. Thereby, when the stepping motor 70 is controlled to move the rotating shaft 702 in the screw hole 662 toward the elastic film 78, the pushing block 74 is pushed to provide a second force on the elastic film 78; On the contrary, when the rotation of the rotating shaft 702 is reversed to move the rotating block 72 in the opposite direction, the spring 76 pushes against the pushing block 74 to move in the opposite direction to the elastic film 78, so that the gap between the plug 80 and the valve opening 664 is reduced. Small and thus shield the valve port 664.

綜上所述，透過本發明瓦斯器具之瓦斯閥控制方法，可讓瓦斯器具在瓦斯源的壓力大於該基準壓力時無法 開啟瓦斯閥，避免瓦斯源的壓力大於該基準壓力仍繼續燃燒，造成一氧化碳濃度過高，有效地增加瓦斯器具的使用安全。 In summary, the gas valve control method of the gas appliance of the present invention can prevent the gas appliance from being able to have a gas source pressure greater than the reference pressure. The gas valve is opened to prevent the pressure of the gas source from being higher than the reference pressure, and the carbon monoxide concentration is too high, thereby effectively increasing the safety of the gas appliance.

以上所述僅為本發明較佳可行實施例而已，舉凡應用本發明說明書及申請專利範圍所為之等效變化，理應包含在本發明之專利範圍內。 The above is only a preferred embodiment of the present invention, and equivalent changes to the scope of the present invention and the scope of the patent application are intended to be included in the scope of the present invention.

Claims (8)

一種用於瓦斯器具之瓦斯閥控制方法，該瓦斯閥內部設有一瓦斯通道，該瓦斯通道之兩端分別連通至一燃燒器與一瓦斯源，該瓦斯通道具有一閥口，一閥塞受該瓦斯源提供的一第一作用力而遮蔽該閥口以阻斷該瓦斯通道；該瓦斯閥控制方法包含下列步驟：A、提供一第二作用力於該閥塞，該第二作用力的方向與該第一作用力的方向相反；B、對該燃燒器點火；C、偵測該燃燒器之出火口是否有火焰形成，若未偵測到火焰，則解除該第二作用力。 A gas valve control method for a gas appliance, wherein the gas valve is internally provided with a gas passage, and the two ends of the gas passage are respectively connected to a burner and a gas source, the gas passage has a valve port, and the valve plug receives the valve a first force provided by the gas source shields the valve port to block the gas passage; the gas valve control method comprises the following steps: A, providing a second force to the valve plug, the direction of the second force Contrary to the direction of the first force; B, igniting the burner; C, detecting whether the burner has a flame formation, and if no flame is detected, releasing the second force. 如請求項1所述用於瓦斯器具之瓦斯閥控制方法，其中當該瓦斯源提供的該第一作用力大於步驟A之該第二作用力時，該閥塞遮蔽該閥口，使瓦斯無法流通至該燃燒器。 The gas valve control method for a gas appliance according to claim 1, wherein when the first force provided by the gas source is greater than the second force of the step A, the valve plug shields the valve port, so that the gas cannot be used. Circulate to the burner. 如請求項1所述用於瓦斯器具之瓦斯閥控制方法，其中當該瓦斯源的壓力大於一基準壓力時，該第一作用力大於該第二作用力，使該閥塞遮蔽該閥口；當該瓦斯源的壓力不大於該基準壓力時，該第一作用力小於該第二作用力，使該閥塞開啟該閥口。 The gas valve control method for a gas appliance according to claim 1, wherein when the pressure of the gas source is greater than a reference pressure, the first force is greater than the second force, so that the valve plug shields the valve port; When the pressure of the gas source is not greater than the reference pressure, the first force is less than the second force, causing the valve plug to open the valve port. 如請求項1所述用於瓦斯器具之瓦斯閥控制方法，其中步驟C中包含在未偵測到火焰後發出一警示訊息。 The gas valve control method for a gas appliance according to claim 1, wherein the step C includes issuing a warning message after the flame is not detected. 如請求項1所述用於瓦斯器具之瓦斯閥控制方法，其中該瓦斯閥包括一作動單元連接該閥塞，步驟A中係控制該作動單元提供該第二作用力於該閥塞。 The gas valve control method for a gas appliance according to claim 1, wherein the gas valve comprises an actuating unit connected to the valve plug, and in step A, the actuating unit controls the actuating unit to provide the second force to the valve plug. 如請求項5所述用於瓦斯器具之瓦斯閥控制方法，其中該作動單元包括一金屬線圈、一移動件與一彈性件，該移動件具有一磁性部穿設該金屬線圈中，該彈性件具有兩端分別連接該移動件與該閥塞，步驟A中係控制通入該金屬線圈的電能以產生磁場作用於該移動件的磁性部，以驅動該移動件推抵該彈性件，使該彈性件提供該第二作用力。 The gas valve control method for a gas appliance according to claim 5, wherein the actuating unit comprises a metal coil, a moving member and an elastic member, the moving member has a magnetic portion penetrating the metal coil, the elastic member Having two ends respectively connecting the moving member and the valve plug, in step A, controlling the electric energy that is passed into the metal coil to generate a magnetic field acting on the magnetic portion of the moving member to drive the moving member to push against the elastic member, so that the The elastic member provides the second force. 如請求項5所述用於瓦斯器具之瓦斯閥控制方法，其中該作動單元包括一步進馬達與一移動件，該步進馬達具有一轉軸，該移動件具有兩端分別連接該轉軸與該閥塞，步驟A中係控制該步進馬達使該轉軸帶動該移動件移動，以提供該第二作用力。 The gas valve control method for a gas appliance according to claim 5, wherein the actuation unit comprises a stepping motor and a moving member, the stepping motor has a rotating shaft, and the moving member has two ends respectively connected to the rotating shaft and the valve The plug controls the stepping motor in step A to cause the rotating shaft to move the moving member to provide the second force. 如請求項1所述用於瓦斯器具之瓦斯閥控制方法，其中該閥塞包括一塞件與一彈性膜，該彈性膜連接於該瓦斯閥的瓦斯通道內壁，該塞件連結於該彈性膜上，該塞件受該彈性膜帶動而開啟或遮蔽該閥口，該彈性膜具有相對的一第一表面與一第二表面，該瓦斯源之壓力作用於該彈性膜的該第一表面上形成該第一作用力，步驟A中所提供的該第二作用力係作用於該第二表面。 The gas valve control method for a gas appliance according to claim 1, wherein the valve plug comprises a plug member and an elastic membrane, the elastic membrane being coupled to the inner wall of the gas passage of the gas valve, the plug being coupled to the elastic On the membrane, the plug is driven by the elastic membrane to open or shield the valve port, the elastic membrane has a first surface and a second surface opposite to each other, and the pressure of the gas source acts on the first surface of the elastic membrane The first force is formed thereon, and the second force provided in step A acts on the second surface.