Direct-current electronic pulse igniter of gas appliance

Abstract

The utility model discloses a direct-current electronic pulse igniter of a gas appliance, and belongs to the technical field of high-voltage ignition of the gas appliance. The high-voltage transformer mainly comprises a high-voltage pack HV and a transformer EE13, wherein the transformer EE13 is provided with a primary winding consisting of a primary main winding and a primary secondary winding; the h1 end of the primary main winding is electrically connected with the first polarity end of the direct-current power source, and the h2 end of the primary main winding is electrically connected with the second polarity end of the direct-current power source through the triode switching circuit. The h3 end of the primary secondary winding is electrically connected with the second polarity end of the direct-current power source through the triode switching circuit. The h4 end of the primary secondary winding is electrically connected with the first polarity end of the direct-current power source through a low-voltage coil of the high-voltage pack HV. A secondary winding of the transformer EE13 is electrically connected with a capacitor charging and discharging loop, and the high-voltage output end of the high-voltage pack HV induces and generates ignition high voltage. According to the utility model, the circuit design is simplified, the redundant part is removed, the ignition stability is high, the used components are few, and the production cost and the energy consumption are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of high pressure ignition of gas appliance, in particular to a kind of gas appliance direct current electronic pulse igniter for gas appliance ignition. BACKGROUND

[0002] Gas appliance electronic pulse igniter is a kind of device that produces high-voltage electric spark by electronic circuit to ignite gas, widely used in gas stove, gas water heater, gas wall-hanging stove and other gas appliances. According to the power supply mode, it can be divided into direct current electronic pulse igniter and alternating current electronic pulse igniter. Among them, direct current electronic pulse igniter is widely used due to its safety, reliability and relatively low cost.

[0003] The patent document with the Chinese patent publication number CN202927878U discloses a gas stove electronic ignition device, and specifically discloses the following technical solution: the device is composed of a 3V direct current power supply, a linkage ignition switch, a direct current power supply control and delay circuit, an oscillation circuit, and a high-voltage discharge mechanism. The linkage ignition switch is composed of a single-pole double-throw switch K1 and a single-pole double-throw switch K2, an electrolytic capacitor C1, and an electrolytic capacitor C2. The negative pole of the electrolytic capacitor C1 is connected to the common terminal of the single-pole double-throw switch K1, and the negative pole of the electrolytic capacitor C2 is connected to the common terminal of the single-pole double-throw switch K2. The positive poles of the electrolytic capacitor C1 and the electrolytic capacitor C2 are connected to the circuit ground GND. The normally closed contact of the single-pole double-throw switch K1 and the normally closed contact of the single-pole double-throw switch K2 are connected to the negative pole VCC of the 3V direct current power supply. The direct current power supply control and delay circuit is composed of a P-channel field effect transistor VT1, a resistor R1, and a resistor R2. The gate of the P-channel field effect transistor VT1 is connected to one end of the resistor R1 and one end of the resistor R2. The other end of the resistor R1 is connected to the normally open contact of the single-pole double-throw switch K1, and the other end of the resistor R2 is connected to the normally open contact of the single-pole double-throw switch K2. The source of the P-channel field effect transistor VT1 is connected to the negative pole VCC of the 3V direct current power supply, and the drain of the P-channel field effect transistor VT1 is connected to the same terminal of the primary coil L1 of the oscillation transformer B. The positive pole of the 3V direct current power supply is connected to the circuit ground GND. The oscillation circuit and the high-voltage discharge mechanism are composed of a PNP transistor VT2, an oscillation transformer B, a resistor R3, and a high-voltage discharge terminal. The base of the PNP transistor VT2 is connected to one end of the resistor R3, and the other end of the resistor R3 is connected to the different terminal of the primary coil L1 of the oscillation transformer B. The same terminal of the primary coil L2 of the oscillation transformer B is connected to the drain of the P-channel field effect transistor VT1. The collector of the PNP transistor VT2 is connected to the different terminal of the primary coil L2 of the oscillation transformer B, and the emitter of the PNP transistor VT2 is connected to the circuit ground GND. One end of the step-up coil L3 of the oscillation transformer B is connected to the metal shell of the gas stove, and the other end of the step-up coil L3 of the oscillation transformer B is connected to the high-voltage discharge terminal. The working principle of the gas stove electronic ignition device is as follows: the circuit of the gas stove electronic ignition device generates a 4000V pulse high voltage using the oscillation circuit, and uses high-voltage discharge to ignite the gas.If the gas switch is in the closed state, the electrolytic capacitor C1 or the electrolytic capacitor C2 is charged, when the gas switch knob is opened, the normally open contact in the single-pole double-throw switch K1 or K2 linked with the gas switch knob is turned on, the electrolytic capacitor C1 or the electrolytic capacitor C2 makes the gate of the P-channel field effect transistor VT1 high level through the single-pole single-throw switch K1 or the single-pole single-throw switch K2, the conduction of the P-channel field effect transistor VT1 makes the oscillation circuit obtain power supply, the secondary coil of the oscillation transformer B is boosted to 4000V pulse high voltage, the high-voltage discharge mechanism is ignited and works for 2-3 seconds, when the electrolytic capacitor C1 or the electrolytic capacitor C2 is discharged, the P-channel field effect transistor VT1 turns off, and the ignition process is completed. Selecting appropriate electrolytic capacitor C1 or electrolytic capacitor C2 and resistance R1 or resistance R2 can make the conduction time of the field effect transistor VT1 remain 2-3 seconds, so that the gas can be continuously ignited. Regardless of the position of the single-pole single-throw switch K1 or the single-pole single-throw switch K2, after ignition, the oscillation circuit is in a stop power supply state. When the gas switch is closed, the single-pole single-throw switch K1 or the single-pole single-throw switch K2 linked with the gas switch is reconnected to the negative electrode of the electrolytic capacitor C1 or the electrolytic capacitor C2, and the electrolytic capacitor C1 or the electrolytic capacitor C2 is charged again.

[0004] It can be seen from the above technical solution that the traditional direct current pulse igniter circuit design is relatively complex, the number of used components is large, the cost is high, and the manufacturing process is relatively complicated. At the same time, the complex circuit design leads to high energy consumption, high battery replacement frequency, and is not energy-saving and environment-friendly. In addition, the complex circuit mechanism design also increases the failure rate, leads to the increase of maintenance and repair frequency, affects the user experience and product service life. Practical new type content

[0005] The utility model aims at the deficiency of prior art, provides a kind of for gas appliance ignition uses' gas direct current electronic pulse igniter.

[0006] The utility model is realized by the following technical schemes:

[0007] A kind of gas direct current electronic pulse igniter, including the direct current power supply for providing working power supply for circuit and the high voltage package HV for outputting ignition high voltage, still include transformer EE13, transformer EE13 is equipped with by primary main winding and primary auxiliary winding Primary winding;The h1 end of primary main winding is electrically connected with the polarity end one of direct current power supply, and the h2 end of primary main winding is electrically connected with the polarity end two of direct current power supply by triode switch circuit;

[0008] The h3 end of primary auxiliary winding is also electrically connected with the polarity end two of direct current power supply by triode switch circuit.

[0009] The h4 end of the primary sub-winding is electrically connected with the positive polarity end of the DC power supply through the low-voltage coil of the high-voltage pack HV.

[0010] The secondary winding of the transformer EE13 is electrically connected with a capacitor charging and discharging circuit, and the capacitor C2 in the capacitor charging and discharging circuit releases energy to the primary coil of the high-voltage pack HV, so that the high-voltage output end of the high-voltage pack HV generates ignition high-voltage inductively.

[0011] Preferably, the positive polarity end of the DC power supply is the positive polarity end, and the negative polarity end of the DC power supply is the negative polarity end.

[0012] Preferably, the voltage value of the DC power supply is 5V.

[0013] Preferably, the triode switch circuit comprises a triode V1, the b end of the triode V1 is electrically connected with the h2 end of the primary main winding through the resistor R1, the c end of the triode V1 is electrically connected with the h3 end of the primary sub-winding, the e end of the triode V1 is electrically connected with the b end of the triode V1 through the capacitor C1, and the e end of the triode V1 is also electrically connected with the negative polarity end of the DC power supply through the diode D2.

[0014] Preferably, the triode V1 is an NPN type triode.

[0015] Preferably, the d1 end of the capacitor C2 is electrically connected with the cathode end of the diode D1, the anode end of the diode D1 is electrically connected with the c1 end of the secondary winding, the c2 end of the secondary winding is electrically connected with the positive polarity end of the DC power supply on one hand and is electrically connected with the h4 end of the primary sub-winding through the primary coil of the high-voltage pack HV on the other hand; the d1 end of the capacitor C2 is also electrically connected with the cathode end of the trigger tube S1, the anode end of the trigger tube S1 is also electrically connected with the h4 end of the primary sub-winding through the primary coil of the high-voltage pack HV; and the d2 end of the capacitor C2 is electrically connected with the h4 end of the primary sub-winding.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] This invention simplifies the circuit design, eliminates redundant parts, and utilizes the characteristics of the transistor switching circuit and the transformer EE13 to generate an alternating voltage on the primary and secondary windings of the transformer EE13. This lays a stable foundation for the subsequent generation of induced electromotive force by the transformer EE13 and the charging and discharging process of the capacitor charging and discharging circuit. This invention features high ignition stability, reliable high-voltage output, and a high ignition success rate. Simultaneously, the circuit structure is simple, using fewer components, reducing production costs and energy consumption. The oscillation circuit design is optimized, resulting in low power consumption and energy saving. Furthermore, reliability is enhanced, the failure rate is low, the service life is long, and maintenance is simpler. These improvements significantly enhance the performance, cost, and user experience of the pulse igniter. Attached Figure Description

[0018] Figure 1 This is the circuit principle of this utility model. Figure 1 .

[0019] Figure 2 This is the circuit principle of this utility model. Figure 2 .

[0020] In the diagram: 1. Transistor switching circuit; 2. Capacitor charging and discharging circuit. Detailed Implementation

[0021] To enable readers to better understand the design intent of this utility model, the technical solution described below is further described in conjunction with embodiments. It should be noted that directional terms that may appear in the following paragraphs, including but not limited to "up," "down," "left," "right," "front," and "back," are based on the visual orientation shown in the accompanying drawings and should not be considered as limitations on the scope of protection or technical solution of this utility model. Their purpose is solely to facilitate a better understanding of the technical solution described in this utility model by those skilled in the art.

[0022] In this specification, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Example 1:

[0024] like Figure 1As shown, a direct current electronic pulse igniter of a gas appliance comprises a direct current power supply for providing working power for a circuit and a high voltage pack HV for outputting ignition high voltage, and further comprises a transformer EE13 provided with a primary winding composed of a primary main winding and a primary auxiliary winding. The h1 end of the primary main winding is electrically connected with a polarity end one of the direct current power supply, and the h2 end of the primary main winding is electrically connected with a polarity end two of the direct current power supply through a triode switching circuit 1, thus forming a loop. The h3 end of the primary auxiliary winding is also electrically connected with the polarity end two of the direct current power supply through the triode switching circuit 1, and the h4 end of the primary auxiliary winding is electrically connected with the polarity end one of the direct current power supply through a low voltage coil of the high voltage pack HV, thus forming another loop. The secondary winding of the transformer EE13 is electrically connected with a capacitor charging and discharging circuit 2, and the capacitor C2 in the capacitor charging and discharging circuit 2 releases energy to a primary coil of the high voltage pack HV, so that the high voltage output end of the high voltage pack HV induces ignition high voltage. The direct current power supply in the embodiment can be 5V, 1.5V, 3V, 12V, 24V, etc.

[0025] The working principle of the embodiment is as follows: when the direct current power supply is powered, the triode switching circuit 1 is in a conduction state, the primary winding of the transformer EE13 induces a magnetic field after a voltage change, the iron core of the transformer EE13 transmits the changing magnetic field to the secondary winding, the secondary winding and the capacitor charging and discharging circuit 2 form a charging circuit, and after the capacitor C2 in the capacitor charging and discharging circuit 2 is fully charged, the capacitor C2 releases the energy to the primary coil of the high voltage pack HV through the capacitor charging and discharging circuit 2, and the high voltage output end of the high voltage pack HV amplifies the voltage on the primary coil by several times and then outputs, until the voltage release on the capacitor C2 is completed. During the discharging process of the capacitor C2, the voltage of the primary auxiliary winding also increases, and after the discharging of the capacitor C2 is completed, the voltage returns to the initial working voltage. In this way, the voltage on the primary auxiliary winding changes constantly, that is, the current flowing through the primary auxiliary winding is alternating current. The transformer EE13 and the capacitor C2 form a stable oscillation circuit, and the high voltage output end of the high voltage pack HV follows the charging and discharging of the capacitor C2 to output ignition high voltage at a certain frequency.

[0026] The embodiment simplifies the circuit design, removes redundant parts, and uses the characteristics of the triode switching circuit and the transformer EE13 to generate alternating voltage on the primary auxiliary winding of the transformer EE13, which lays a stable foundation for the subsequent induction electromotive force of the transformer EE13 and the charging and discharging process of the capacitor charging and discharging circuit, and has the characteristics of high ignition stability, reliable high voltage output, and high ignition success rate.

[0027] Embodiment 2

[0028] On the basis of embodiment 1, the technical features involved therein and the functions and roles of the technical features in the utility model are described in detail to help the technical personnel in the field fully understand the technical scheme of the utility model and reproduce it.

[0029] As Figures 1 to 2 , a direct current electronic pulse igniter for a gas appliance, comprising a direct current power supply for providing working power for a circuit and a high voltage pack HV for outputting ignition high voltage, and further comprising a transformer EE13 provided with a primary winding composed of a primary main winding and a primary auxiliary winding. The h1 end of the primary main winding is electrically connected with a polarity end one of the direct current power supply, and the h2 end of the primary main winding is electrically connected with a polarity end two of the direct current power supply via a triode switching circuit 1, thus forming a loop. The h3 end of the primary auxiliary winding is also electrically connected with the polarity end two of the direct current power supply via the triode switching circuit 1, and the h4 end of the primary auxiliary winding is electrically connected with the polarity end one of the direct current power supply via a low voltage coil of the high voltage pack HV, thus forming another loop. The polarity end one of the direct current power supply in the embodiment is a positive end. The polarity end two of the direct current power supply is a negative end, i.e. GND in the figure. The voltage value of the direct current power supply is preferably 5V, so as to facilitate the selection and use of the 5V power supply by users. The triode switching circuit 1 comprises a triode V1, the b end of the triode V1 is electrically connected with the h2 end of the primary main winding via a resistor R1, the c end of the triode V1 is electrically connected with the h3 end of the primary auxiliary winding, the e end of the triode V1 is electrically connected with the b end of the triode V1 via a capacitor C1, and the e end of the triode V1 is also electrically connected with the negative end of the direct current power supply via a diode D2. Among them, the triode V1 is an NPN type triode. The secondary winding of the transformer EE13 is electrically connected with a capacitor charging and discharging circuit 2. The capacitor charging and discharging circuit 2 further comprises a diode D1, a trigger tube S1, etc. Specifically, the d1 end of the capacitor C2 is electrically connected with the cathode end of the diode D1, the anode end of the diode D1 is electrically connected with the c1 end of the secondary winding, the c2 end of the secondary winding is electrically connected with the positive end of the direct current power supply on one hand, and is electrically connected with the h4 end of the primary auxiliary winding via a primary coil of the high voltage pack HV on the other hand; the d1 end of the capacitor C2 is also electrically connected with the cathode end of the trigger tube S1, the anode end of the trigger tube S1 is also electrically connected with the h4 end of the primary auxiliary winding via the primary coil of the high voltage pack HV; and the d2 end of the capacitor C2 is electrically connected with the h4 end of the primary auxiliary winding. The capacitor C2 in the capacitor charging and discharging circuit 2 releases energy to the primary coil of the high voltage pack HV, so as to induce ignition high voltage at the high voltage output end of the high voltage pack HV. In the embodiment, four high voltage output ends are shown as Output1-Output4, and the number of high voltage output ends can be adjusted according to actual needs. Figure 1 、 Figure 2

[0030] ​The working principle of the embodiment is as follows: when 5V direct current is input, the direct current is input to the b pole end of the triode V1 through the h1 end of the primary main winding, the h2 end of the primary main winding and the resistor R1; at the same time, the direct current is input to the c pole end of the triode V1 through the primary coil of the high-voltage pack HV, the h4 end of the primary auxiliary winding and the h3 end of the primary auxiliary winding, at this time, the triode V1 is turned on, at this time, the primary main winding and the primary auxiliary winding are all from no electricity to electricity, the transformer EE13 generates a changing magnetic field after induction and outputs an upgraded voltage from the secondary winding, the upgraded voltage charges the capacitor C2 through the diode D1 and the primary winding of the high-voltage pack HV. After the capacitor C2 is fully charged, the transistor S1 is reversely turned on, at this time, the capacitor C2 releases the voltage to the primary coil of the high-voltage pack HV, at the same time, the voltage of the primary auxiliary winding also rises. After the capacitor C2 releases the voltage, the voltage of the primary auxiliary winding drops to the initial working voltage, so that the alternating voltage is generated again by the high-to-low change, the transformer EE13 charges the capacitor C2 again, and the charging and discharging process is continuously cycled. During the discharging process of the capacitor C2, the high-voltage output of the high-voltage pack HV outputs the ignition high-voltage, and during the charging process of the capacitor C2, the high-voltage output of the high-voltage pack HV does not output the ignition high-voltage, so that the final state is to stably output the ignition high-voltage at a certain frequency.

[0031] The embodiment simplifies the circuit design, removes redundant parts, utilizes the self characteristics of the triode switching circuit and the transformer EE13, generates alternating voltage on the primary auxiliary winding of the transformer EE13, and lays a stable foundation for the induced electromotive force of the subsequent transformer EE13 and the charging and discharging process of the capacitor charging and discharging circuit. The embodiment has the characteristics of high ignition stability, reliable high-voltage output and high ignition success rate; at the same time, the circuit structure is simple, the used components are few, the production cost and energy consumption are reduced, the oscillation circuit design is optimized, the power consumption is low, the energy saving and environmental protection are realized, in addition, the reliability is enhanced, the failure rate is low, the service life is long, and the maintenance is more simple. These improvements obviously improve the performance, cost and user experience of the pulse igniter.

[0032] In conclusion, the above is only a preferred embodiment of the utility model, and is not used to limit the range of the utility model implementation, and all equivalent changes and modifications made according to the shape, structure, features and spirit of the utility model claim range should be included in the claim range of the utility model.

Claims

1. A DC electronic pulse igniter for a gas appliance, comprising a DC power supply for providing operating power to the circuit and a high-voltage transformer HV for outputting ignition high voltage, characterized in that: It also includes transformer EE13, which has a primary winding consisting of a primary main winding and a primary auxiliary winding; the h1 end of the primary main winding is electrically connected to the polarity terminal one of the DC power supply, and the h2 end of the primary main winding is electrically connected to the polarity terminal two of the DC power supply through a transistor switching circuit (1). The h3 terminal of the primary secondary winding is also electrically connected to the polarity terminal of the DC power supply via the transistor switching circuit (1); The h4 terminal of the primary secondary winding is electrically connected to the polarity terminal of the DC power supply via the low-voltage coil of the high-voltage transformer HV. The secondary winding of transformer EE13 is electrically connected to a capacitor charging and discharging circuit (2). The capacitor C2 in the capacitor charging and discharging circuit (2) releases energy to the primary coil of the high voltage transformer HV so that the high voltage output terminal of the high voltage transformer HV is induced to generate an ignition high voltage.

2. The DC electronic pulse igniter for gas appliances according to claim 1, characterized in that: The first polarity terminal of the DC power supply is the positive terminal; the second polarity terminal of the DC power supply is the negative terminal.

3. A DC electronic pulse igniter for gas appliances according to claim 2, characterized in that: The voltage of the DC power supply is 5V.

4. A DC electronic pulse igniter for gas appliances according to claim 2, characterized in that: The transistor switching circuit (1) includes a transistor V1. The b terminal of the transistor V1 is electrically connected to the h2 terminal of the primary winding via a resistor R1. The c terminal of the transistor V1 is electrically connected to the h3 terminal of the primary secondary winding. A capacitor C1 is electrically connected between the e terminal and the b terminal of the transistor V1. The e terminal of the transistor V1 is also electrically connected to the negative terminal of the DC power supply via a diode D2.

5. A DC electronic pulse igniter for gas appliances according to claim 4, characterized in that: The transistor V1 is an NPN transistor.

6. A DC electronic pulse igniter for gas appliances according to claim 2, characterized in that: The d1 terminal of capacitor C2 is electrically connected to the cathode of diode D1, and the anode of diode D1 is electrically connected to the c1 terminal of the secondary winding. The c2 terminal of the secondary winding is electrically connected to the positive terminal of the DC power supply on one hand, and to the h4 terminal of the primary secondary winding via the primary coil of high voltage transformer HV on the other hand. The d1 terminal of capacitor C2 is also electrically connected to the cathode of trigger tube S1, and the anode of trigger tube S1 is also electrically connected to the h4 terminal of the primary secondary winding via the primary coil of high voltage transformer HV. The d2 terminal of capacitor C2 is electrically connected to the h4 terminal of the primary secondary winding.

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