Warmer easy to ignite

Abstract

The heater easy to ignite comprises an ignition device, the ignition device comprises an igniter, a wire and an ignition needle, the ignition needle is fixed to a furnace end, one end of the wire is fixedly and electrically connected with the igniter, the other end of the wire is fixedly and electrically connected with one end of the ignition needle, and the other end of the ignition needle is close to an ignition disc. The voltage generated by the igniter is larger than the breakdown voltage between the ignition needle and the ignition disc, and the breakdown voltage between the wire and the furnace end is larger than the breakdown voltage between the ignition needle and the ignition disc. Or the breakdown voltage between the igniter and the furnace end is larger than the breakdown voltage between the ignition needle and the ignition disc. The warmer is high in ignition success rate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of warmers, more particularly, to an easy-to-ignite warmer. BACKGROUND

[0002] A gas warmer is a heating warmer that uses gas combustion to provide heat. The burner of the gas warmer is a honeycomb burner or an open flame burner. In the warmer with the open flame burner, the gas is ignited at the ignition disc. The ignition device of the warmer includes an igniter, a wire and an ignition needle, and the ignition needle is near the ignition disc. Since the burner is mostly made of metal, when the wire is too close to the burner or the wire contacts the burner, the resistance value between the wire and the burner is smaller than the resistance value between the ignition needle and the ignition disc, and the voltage generated by the igniter is directly or through the wire released to other structures of the burner. At this time, the electric spark cannot be generated between the ignition needle and the ignition disc, resulting in ignition failure. CONTENT

[0003] The present application aims to solve the problems in the prior art and provide a warmer with high ignition success rate.

[0004] To achieve the above-mentioned purpose, the present application provides an easy-to-ignite warmer, which comprises a base, a support pipe and a burner, the base supports the support pipe, the support pipe supports the burner, the burner is provided with an ignition disc, the base is provided with a gas tank, the gas tank delivers gas to the ignition disc through a gas pipe, the warmer further comprises an ignition device, the ignition device comprises an igniter, a wire and an ignition needle, the ignition needle is fixed to the burner, one end of the wire is fixed and electrically connected to the igniter, the other end of the wire is fixed and electrically connected to one end of the ignition needle, the other end of the ignition needle is close to the ignition disc, the voltage generated by the igniter is greater than the breakdown voltage between the ignition needle and the ignition disc, and the breakdown voltage between the wire and the burner is greater than the breakdown voltage between the ignition needle and the ignition disc; or, the breakdown voltage between the igniter and the burner is greater than the breakdown voltage between the ignition needle and the ignition disc.

[0005] The voltage generated by the igniter is less than the breakdown voltage between the wire and the burner; or, the voltage generated by the igniter is less than the breakdown voltage between the igniter and the burner.

[0006] The burner comprises a panel and a mesh seat, the ignition device comprises an ignition support, the panel is located below the mesh seat, the igniter is fixed to the panel, and the ignition needle is fixed to the mesh seat through the ignition support.

[0007] The ignition device comprises a sheath layer, the sheath layer wraps the wire, and a breakdown voltage between the ignition needle and the firing disc is less than a breakdown voltage of the sheath layer.

[0008] The voltage generated by the igniter is less than the breakdown voltage of the sheath layer.

[0009] The ignition device comprises a fixing buckle made of insulating material, a fixing buckle part connected with the sheath layer, a fixing buckle part connected with the burner head, and the fixing buckle fixes the wire relative to the burner head.

[0010] The sum of the breakdown voltage of the sheath layer and the breakdown voltage required by the minimum distance between the sheath layer and the burner head is greater than the breakdown voltage between the ignition needle and the firing disc.

[0011] The sum of the breakdown voltage of the sheath layer and the breakdown voltage required by the minimum distance between the sheath layer and the burner head is greater than the voltage generated by the igniter.

[0012] The minimum distance between the wire and the burner head is greater than the minimum distance between the ignition needle and the firing disc.

[0013] The minimum distance between the ignition needle and the firing disc is greater than 0.5mm and less than 5mm, and the minimum distance between the wire and the burner head is greater than the ratio of the voltage generated by the igniter to the electric breakdown strength of air.

[0014] Advantages:

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1. The breakdown voltage between the wire and the burner head is greater than the breakdown voltage between the ignition needle and the firing disc, so that when the igniter generates voltage, an electric spark is generated between the ignition needle and the firing disc, the success rate of generating an electric spark between the ignition needle and the firing disc is improved, and ignition is easy to succeed.

[0017] 2. The fixing buckle can stabilize the wire and the sheath layer, i.e. the possibility of reducing the distance between the wire and the burner head is reduced, and the possibility of reducing the wear of the sheath layer is reduced.

[0018] 3. The sheath layer wraps the wire, i.e. the wire is protected, and the insulation between the wire and the burner head is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a three-dimensional assembly schematic diagram of a warmer according to an embodiment of the present application;

[0020] Figure 2 is a burner head structure schematic diagram of a warmer according to an embodiment of the present application;

[0021] Figure 3 is a schematic diagram of a non-combustion net stove head structure of a warmer according to an embodiment of the present application;

[0022] Figure 4 is Figure 3 is a schematic diagram of a cross-section along line A-A in

[0023] Figure 5 is Figure 4 is a schematic diagram of an enlarged view of the B ring in

[0024] Figure 6 is Figure 4 is a schematic diagram of an enlarged view of the C ring in

[0025] Figure 7 is a schematic diagram of a cross-section of a wire with a protective sleeve according to an embodiment of the present application.

[0026] Reference signs:

[0027] 1 - reflector cover; 2 - stove head; 21 - combustion net; 211 - ignition disc; 22 - net seat; 23 - small net; 231 - panel; 29 - ignition device; 291 - igniter; 292 - wire; 2921 - sheath layer; 2922 - fixing buckle; 293 - ignition needle; 294 - ignition support; 3 - support tube. DETAILED DESCRIPTION

[0028] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0029] Please refer to Figures 1 to 7 , an easy-to-ignite warmer according to an embodiment of the present application includes a reflector cover 1, a stove head 2, a support tube 3, and a base assembly including a barrel, a foot tube, and a base. After the warmer is installed, the base is fixed to the bottom of the foot tube, the top of the foot tube is fixed to the bottom of the support tube 3, the top of the support tube 3 is fixed to the bottom of the stove head 2, and the top of the stove head 2 is fixed to the reflector cover 1.

[0030] The stove head 2 includes a combustion net 21, an ignition disc 211, a net seat 22, a small net 23, and a valve body. The ignition disc 211 is located inside the combustion net 21. The bottom of the combustion net 21 is directly fixed to or fixed to the top of the net seat 22 through a connecting piece. The bottom of the net seat 22 is directly fixed to or fixed to the top of the small net 23 through a connecting piece. The bottom of the small net 23 is directly fixed to or fixed to the top of the support tube 3 through a connecting piece. The ignition disc 211 is directly fixed to or fixed to the net seat 22 through a connecting piece.

[0031] The small net 23 comprises a panel 231 fixed to the main body of the small net 23. The valve body is fixed to the stove head 2, and the rotary knob switch of the valve body is fixed to the panel 231. The gas tank containing gas is placed on the base, and the gas tank is communicated with the valve body through the gas pipe to deliver the gas in the gas tank to the valve body. The foot pipe is arranged around the gas tank, and the barrel body is arranged around the foot pipe to protect the gas tank and the foot pipe.

[0032] One end of the valve body is fixed and communicated with the gas tank, and the other end of the valve body is connected and communicated with the ignition disc 211, so that the gas in the gas tank can enter the ignition disc 211 through the gas tank and the valve body.

[0033] The heater further comprises an ignition device 29, which comprises an igniter 291, a wire 292, an ignition needle 293, an ignition bracket 294 and a fixing buckle 2922. One end of the wire 292 is fixed and electrically connected to the igniter 291, and the other end of the wire 292 is fixed and electrically connected to the ignition needle 293, so that the igniter 291 and the ignition needle 293 are electrically connected through the wire 292, and the electric energy generated by the igniter 291 can be transmitted to the ignition needle 293. One end of the ignition needle 293 is connected to the wire 292, and the other end of the ignition needle 293 is a sharp end close to the ignition disc 211, but the ignition needle 293 does not contact the ignition disc 211. When the high-voltage electric energy generated by the igniter 291 is transmitted to the end of the ignition needle 293 close to the ignition disc 211, the voltage breaks through the air in the gap between the ignition needle 293 and the ignition disc 211 to form an electric arc, which ignites the gas near the ignition disc 211, so that the heater works.

[0034] Specifically, the igniter 291 is fixed to the panel 231, the ignition needle 293 is fixed to the ignition bracket 294, and the ignition bracket 294 is fixed to the stove head 2. Except for the connection of some parts in the stove head 2, the stove head 2 is made of metal material as a whole, that is, the combustion net 21, the ignition disc 211, the net seat 22, the small net 23, the panel 231 and the valve body are all made of metal material, and the connecting parts for fixing the ignition disc 211 or the valve body to the net seat 22 are also metal structures. The metal material has high temperature resistance and can keep the structure stable when the gas burns at the ignition disc 211. Of course, the structure of the igniter 291 is that the piezoelectric material inside the igniter 291 is wrapped with plastic, and the connection between the igniter 291 and the panel 231 is this plastic structure, which reduces the possibility of the electric energy of the igniter 291 being guided to the panel 231, so that the electric energy of the igniter 291 is transmitted to the ignition needle 293 through the wire 292. The plastic structure of the igniter 291 not only has high resistance value, but also has the characteristics of high temperature resistance. Of course, the plastic can also be replaced by other materials with high temperature resistance and insulation, such as ceramic material, asbestos material, etc.

[0035] The ignition support 294 is made of high-temperature-resistant material, such as metal material, plastic material, ceramic material, etc. The ignition support 294 is fixedly connected with the net seat 22 of the burner head 2 or the ignition support 294 is fixedly connected with the net seat 22 of the burner head 2 through a connecting piece. The ignition support 294 is a plate structure, and the connecting piece between the ignition support 294 and the net seat 22 is fixed by welding or screwing. When fixed by screwing, at least two screws are used, which reduces the possibility of movement and rotation of the ignition support 294 relative to the net seat 22.

[0036] According to the different materials of the ignition support 294, the ignition needle 293 is directly fixed with the ignition support 294 or the ignition needle 293 is wrapped with insulation and high-temperature-resistant material. For example, when the ignition support 294 is made of metal material, the ignition needle 293 is wrapped with ceramic material, or the ignition needle 293 can be replaced with plastic material, etc., which meets the insulation and high-temperature resistance, thereby reducing the possibility of electric energy from the ignition needle 293 to the ignition support 294. When the ignition support 294 is made of ceramic material or plastic material, the ignition needle 293 can be directly fixed to the ignition support 294 without insulation material. In this embodiment, the ignition support 294 is made of metal material, and the ignition needle 293 is wrapped with ceramic material.

[0037] The connection between the ceramic material wrapping the ignition needle 293 and the ignition support 294 is non-circular, and the connection between the ignition needle 293 and the ceramic material is non-circular or has a convex anti-rotation structure, which reduces the movement and rotation of the ignition needle 293 relative to the ceramic material and the ignition support 294. Since the ignition disc 211 is fixed to the net seat 22, the ignition needle 293 is thus arranged, which improves the stability of the ignition needle 293 relative to the ignition disc 211.

[0038] The ignition needle 293 is kept away from the ignition disc 211 so that the voltage on the ignition needle 293 can break through the air to reach the ignition disc 211 and generate an electric spark between the ignition needle 293 and the ignition disc 211 to ignite the gas at the ignition disc 211. Specifically, the ignition needle 293 is a steel wire structure, the ignition needle 293 has a first end and a second end at two ends, the first end is close to the ignition disc 211, and the second end is fixed and electrically connected with the wire 292; the ignition disc 211 has a gas outlet, the first end is close to the gas outlet of the ignition disc 211, and is installed in a vertical direction to the horizontal plane, after installation of the heater, the end point of the first end is located in the upper middle part of the gas outlet, the gas from the gas outlet generally moves upward, which is convenient for the electric spark between the first end and the ignition disc 211 to ignite the gas; the closest distance between the first end and the ignition disc 211 is between 0.5 mm and 10 mm, such as 1 mm, 2 mm, 4 mm, 6 mm, etc., too short distance is easy to cause the ignition needle 293 to contact the ignition disc 211 and cannot generate an electric spark, too large distance is easy to cause the voltage generated by the igniter 291 to be unable to break through the air to generate an electric spark, in the embodiment, the distance between the first end and the ignition disc 211 is 3.5 mm.

[0039] According to the prior art knowledge such as "High Voltage Insulation Technology (Third Edition)", the electric breakdown strength is the highest electric field strength that a material can withstand under the action of an electric field to avoid breakdown, which is usually represented by the ratio of breakdown voltage to thickness, such as kV / mm. According to the prior art, the electric breakdown strength of air is generally 3 kV / mm, and the electric breakdown strength of plastic and ceramic materials is between 10 and 50 kV / mm, such as the electric breakdown strength of polyethylene is 20 to 50 kV / mm, and the electric breakdown strength of polyvinyl chloride is 10 to 30 kV / mm.

[0040] Generally, the outdoor heater uses the igniter 291 to ignite, and the voltage generated by the igniter 291 is generally 12-15 kV. In this application, the voltage generated by the igniter 291 is 15 kV. The piezoelectric material of the igniter 291 is isolated from the panel 231 by the plastic on the igniter 291, or the piezoelectric material of the igniter 291 is isolated from the metal components on the burner head 2 by the plastic on the igniter 291. In this embodiment, the distance between the plastic of the igniter 291 and the metal components on the burner head 2 is greater than or equal to 5 mm, the plastic of the igniter 291 is a composite material, the breakdown strength of the plastic on the igniter 291 is about 15 kV / mm, the breakdown voltage of the plastic on the igniter 291 is 45 kV, the breakdown voltage between the ignition needle 293 and the firing disc 211 is 10.5 kV, that is, the breakdown voltage of the plastic on the igniter 291 is more than 4 times the breakdown voltage between the ignition needle 293 and the firing disc 211, and the voltage generated by the igniter 291 cannot generate an electric spark between the igniter 291 and the metal structure of the burner head 2. It can be understood that the voltage generated by the igniter 291 is greater than the breakdown voltage between the ignition needle 293 and the firing disc 211, so that the voltage generated by the igniter 291 is sufficient to generate an electric spark between the ignition needle 293 and the firing disc 211 to ignite the gas near the firing disc 211; the breakdown voltage of the plastic on the igniter 291 is greater than the breakdown voltage between the ignition needle 293 and the firing disc 211, and the voltage generated by the igniter 291 is less than the breakdown voltage of the plastic on the igniter 291, so that the igniter 291 cannot release voltage to the metal parts of the burner head 2 near the igniter 291, thereby ensuring the stability of the electric spark generated between the ignition needle 293 and the firing disc 211.

[0041] The igniter 291 is fixed to the panel 231, and the panel 231 is part of the small net 23. Since the small net 23 is located below the net seat 22, the igniter 291 is located below the net seat 22, so that the igniter 291 is away from the firing disc 211 relative to the ignition needle 293, which reduces the temperature of the igniter 291 during the operation of the heater and improves the service life of the igniter 291; the gas outlet of the firing disc 211 is arranged opposite to the combustion net 21, and in the vertical direction, the gas outlet of the firing disc 211 is located above the net seat 22, and since the first end of the ignition needle 293 is located in the upper middle part of the gas outlet of the firing disc 211, the ignition needle 293 is partially or entirely located above the net seat 22; the wire 292 is electrically connected to the igniter 291 and the ignition needle 293, so that the wire 292 extends from the igniter 291 to the ignition needle 293, that is, the wire 292 needs to extend from the small net 23 to the inside of the combustion net 21 or the wire 292 extends from the small net 23 to the inside of the net seat 22.

[0042] The wire 292 is made of copper material or copper alloy material, which improves the conductivity. The wire 292 is not in electrical communication with the burner head 2, including that the wire 292 does not contact the electrically conductive components of the burner head 2 and the wire 292 does not generate electric spark with the electrically conductive components of the burner head 2, which reduces the possibility of the electric energy of the igniter 291 being released through the wire 292 and improves the possibility of electric spark being generated between the ignition needle 293 and the firing disc 211. The electrically conductive components of the burner head 2 include the metal components of the burner head 2, including the combustion screen 21, the screen seat 22, the small screen 23, the panel 231, the metal connectors connecting the components, and the like.

[0043] Specifically, the wire 292 does not directly contact the metal components of the burner head 2. The wire 292 also does not generate electric spark with the metal components of the burner head 2, that is, the minimum distance between each part of the wire 292 and the metal components of the burner head 2 is greater than 5 mm, because the voltage generated by the igniter 291 in the present application is 15 KV and the electric breakdown strength of air is 3 kV / mm. The wire 292 is made of copper material or copper alloy material, which has its own rigidity. During installation, the distance between the wire 292 and the metal components of the burner head 2 is plastic, and the self-rigidity remains unchanged, that is, the distance between the wire 292 and the metal components of the burner head 2 remains greater than 5 mm under the self-rigidity. In the present embodiment, the distance between the first end of the ignition needle 293 and the firing disc 211 is 3.5 mm. Therefore, when the minimum distance between the wire 292 and the metal components of the burner head 2 is greater than 3.5 mm, the electric breakdown strength between the first end of the ignition needle 293 and the firing disc 211 is greater than the electric breakdown strength between the wire 292 and the metal components of the burner head 2, which improves the possibility of electric spark being located between the first end of the ignition needle 293 and the firing disc 211 and the reliability of ignition.

[0044] The ignition device 29 also includes a fixing buckle 2922 for stabilizing the wire 292 and reducing the distance variation between the wire 292 and the metal components of the burner head 2 due to movement, transportation, shaking, tilting, and the like. The fixing buckle 2922 is partially fixed to the wire 292 and partially fixed to the burner head 2 or the components inside the burner head 2, so that the fixing buckle 2922 fixes the wire 292 relative to the burner head 2. The fixing manner includes detachable fixing and non-detachable fixing, which can be selected according to requirements. The fixing buckle 2922 is made of insulating and high-temperature-resistant material, such as plastic, ceramic, and the like. In the present embodiment, the fixing buckle 2922 is a plastic structure, and the electric breakdown strength of the plastic is greater than or equal to 20 kV / mm.

[0045] The fixed buckle 2922 is an open-ended and hollow structure, and the fixed buckle 2922 is fixed to the small net 23 of the burner head 2 through a connecting shaft on the fixed buckle 2922. The connecting shaft on the fixed buckle 2922 is also made of plastic, and the fixed buckle 2922 and the connecting shaft are integrally injection molded. The wire 292 is partially contained in the through hole of the fixed buckle 2922. Of course, the fixed buckle 2922 can also be fixed to other structures of the burner head 2 or indirectly fixed to the burner head 2 by other means. The fixed buckle 2922 can partially or fully surround the wire 292, and can also partially or half surround the wire 292.

[0046] The ignition device 29 includes a sheath layer 2921 for wrapping the wire 292. The sheath layer 2921 can be used to protect the wire 292 and reduce the influence of the outside on the wire 292, and also has good insulation to reduce the possibility of wire 292 electric leakage. The sheath layer 2921 is made of high-temperature resistant and insulating material. In this embodiment, the sheath layer 2921 is a composite plastic structure, the electric breakdown strength of the sheath layer 2921 is 30 kV / mm, and the thickness is 1 mm. That is, the voltage value generated by the igniter 291 is less than the breakdown voltage required by the sheath layer 2921.

[0047] When the wire 292 is not provided with the sheath layer 2921, the wire 292 is fixed by the fixed buckle 2922, and the distance between the wire 292 and the metal part of the burner 2 is kept greater than 3.5 mm, so that the breakdown voltage required between the ignition needle 293 and the ignition disc 211 is less than the breakdown voltage required between the wire 292 and the metal part of the burner 2, reducing the possibility of electrical energy leaking from the wire 292 to the metal part of the burner 2; or when the wire 292 is not provided with the sheath layer 2921, the distance between the wire 292 and the metal part of the burner 2 is kept greater than 5 mm, which can also be 6 mm, 7 mm, 10 mm, etc., so that the breakdown voltage required between the ignition needle 293 and the ignition disc 211 is less than the voltage value generated by the igniter 291, further reducing the possibility of electrical energy leaking from the wire 292 to the metal part of the burner 2. When the wire 292 is provided with the sheath layer 2921, at this time the fixed buckle 2922 is connected or fixed with the sheath layer 2921, the electrical breakdown strength of the material of the sheath layer 2921 is 30 kV / mm, the thickness is 1 mm, and the voltage value generated by the igniter 291 is less than the breakdown voltage required by the sheath layer 2921, at this time the wire 292 with the sheath layer 2921 does not need to limit the distance with the metal part of the burner 2; further, the wire 292 with the sheath layer 2921 still uses the fixed buckle 2922 to fix, reducing the possibility of the sheath layer 2921 being worn due to contact with the internal part of the burner 2; or when the wire 292 is provided with the sheath layer 2921, but the electrical breakdown strength of the material of the sheath layer 2921 is less than 30 kV / mm or the thickness of the sheath layer 2921 is less than 1 mm, resulting in the voltage value generated by the igniter 291 being greater than or equal to the breakdown voltage required by the sheath layer 2921, at this time, according to the material and thickness of the sheath layer 2921, the distance between the sheath layer 2921 of the wire 292 and the metal structure of the burner 2 is controlled by the fixed buckle 2922 to satisfy the breakdown voltage required between the ignition needle 293 and the ignition disc 211 being less than the breakdown voltage required between the wire 292 and the metal part of the burner 2, or to satisfy the voltage value generated by the igniter 291 being less than the breakdown voltage required between the wire 292 and the metal part of the burner 2. Those skilled in the art can select to set the sheath layer 2921, or set the fixed buckle 2922, or set both the sheath layer 2921 and the fixed buckle 2922 according to actual needs, so as to satisfy the breakdown voltage required between the ignition needle 293 and the ignition disc 211 being less than the breakdown voltage required between the wire 292 and the metal part of the burner 2. In general, in this embodiment, the wire 292 is provided with the sheath layer 2921, the electrical breakdown strength of the material of the sheath layer 2921 is 30 kV / mm, the thickness is 1 mm, and the fixed buckle 2922 is provided at the same time, so that the distance between the wire 292 and the metal structure of the burner 2 is greater than 3.5 mm, reducing the possibility of the wire 292 releasing electric sparks to the burner 2 due to damage to the sheath layer 2921, greatly improving the stability of the ignition of the ignition needle 293.

[0048] In some other embodiments, the sheath layer 2921 is externally provided with a protective layer made of high-temperature-resistant and wear-resistant material, which is used to protect the sheath layer 2921 and reduce damage to the sheath layer 2921 caused by friction.

[0049] Obviously, it should be explained that the "first", "second", and the like descriptions mentioned in the specification and claims are used to distinguish different structures, devices, components, and the like, and do not represent the order or limit the "first" and "second" to different types. "Include" is an open term, so it should be interpreted as "including but not limited to". "Approximately" and "generally" mean within an acceptable error range, and those skilled in the art can solve the technical problems within a certain error range and basically achieve the technical effects. The terms "connected", "connected", "fixed" and the like should be interpreted broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, and the fixed connection can also be integrally formed; it can be directly connected, or it can be indirectly connected through an intermediate medium, unless otherwise specified. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances. The "vertical" in this article should be understood within the process error range, or the included angle at the vertical position is within the range of 80° to 100°.

[0050] Although the embodiments of the present application have been shown and described above, it should be understood that the above description is only the preferred embodiments of the present application, and does not limit the present application in any form. Although the present application has been disclosed as the above preferred embodiments, it is not intended to limit the present application, and any skilled person in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, but as long as it does not deviate from the technical solution of the present application, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application are still within the scope of the present application.

Claims

1. An easily ignitable heater, comprising a base assembly, a support tube, and a burner head, wherein the base assembly supports the support tube, the support tube supports the burner head, the burner head contains an ignition plate, a gas cylinder is mounted on the base, and the gas cylinder supplies gas to the ignition plate via a gas pipe, characterized in that... The heater also includes an ignition device, which comprises an igniter, a wire, and an ignition needle. The ignition needle is fixed to the burner head. One end of the wire is fixed to and electrically connected to the igniter, and the other end of the wire is fixed to and electrically connected to one end of the ignition needle. The other end of the ignition needle is close to the ignition plate. The voltage generated by the igniter is greater than the breakdown voltage between the ignition needle and the ignition plate. Wherein, the breakdown voltage between the wire and the burner head is greater than the breakdown voltage between the ignition needle and the ignition plate; or, the breakdown voltage between the igniter and the burner head is greater than the breakdown voltage between the ignition needle and the ignition plate.

2. The easily ignitable heater according to claim 1, characterized in that, The voltage generated by the igniter is less than the breakdown voltage between the wire and the burner head; or, the voltage generated by the igniter is less than the breakdown voltage between the igniter and the burner head.

3. The easily ignitable heater according to claim 1, characterized in that, The burner head includes a panel and a mesh base. The ignition device includes an ignition bracket. The panel is located below the mesh base. The igniter is fixed to the panel. The ignition needle is fixed to the mesh base through the ignition bracket.

4. The easily ignitable heater according to claim 3, characterized in that, The ignition device includes a sheath layer that wraps around the wire, and the breakdown voltage between the ignition needle and the ignition plate is less than the breakdown voltage of the sheath layer.

5. The easily ignitable heater according to claim 4, characterized in that, The voltage generated by the igniter is less than the breakdown voltage of the sheath layer.

6. The easily ignitable heater according to claim 4, characterized in that, The ignition device includes a fixing clip made of insulating material. The fixing clip is connected to the sheath layer and the fixing clip is connected to the burner head. The fixing clip fixes the wire relative to the burner head.

7. The easily ignitable heater according to claim 6, characterized in that, The sum of the breakdown voltage of the sheath layer and the breakdown voltage required for the minimum distance between the sheath layer and the burner head is greater than the breakdown voltage between the ignition needle and the ignition plate.

8. The easily ignitable heater according to claim 7, characterized in that, The sum of the breakdown voltage of the sheath layer and the breakdown voltage required for the minimum distance between the sheath layer and the burner head is greater than the voltage generated by the igniter.

9. The easily ignitable heater according to claim 1, characterized in that, The minimum distance between the wire and the burner head is greater than the minimum distance between the ignition needle and the ignition plate.

10. The easily ignitable heater according to claim 9, characterized in that, The minimum distance between the ignition needle and the ignition plate is greater than 0.5 mm and less than 5 mm, and the minimum distance between the wire and the burner head is greater than the ratio of the voltage generated by the igniter to the electrical breakdown strength of air.

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