CN214065321U - Ignition needle assembly of full-premix water heater and full-premix gas water heater - Google Patents
Ignition needle assembly of full-premix water heater and full-premix gas water heater Download PDFInfo
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- CN214065321U CN214065321U CN202022526925.3U CN202022526925U CN214065321U CN 214065321 U CN214065321 U CN 214065321U CN 202022526925 U CN202022526925 U CN 202022526925U CN 214065321 U CN214065321 U CN 214065321U
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Abstract
The utility model relates to a gas water heater ignition device, and discloses a full premix water heater ignition needle assembly, which comprises a first ignition needle, a second ignition needle, an induction needle, insulating ceramics and a mounting plate; the first ignition needle, the second ignition needle and the induction needle respectively penetrate through one insulating ceramic to be fixed in the insulating ceramic to form sealing with the insulating ceramic; the mounting plate is provided with three ceramic mounting holes, and the first ignition needle, the second ignition needle and the induction needle are respectively fixed in the ceramic mounting holes in sequence through the insulating ceramic to form an integrated structure which is sealed between the insulating ceramic and the mounting plate. The utility model discloses a full premix water heater ignition needle subassembly can prevent the leakage of flue gas, and simple to operate, and the ignition is stable. Furthermore, the utility model also discloses a full premix gas heater.
Description
Technical Field
The utility model relates to a gas heater ignition, specifically relate to a full premix water heater ignition needle subassembly. Furthermore, the utility model discloses still relate to a full premix gas heater.
Background
For a water heater (wall-mounted boiler) adopting a full-premixing technology, the smoke emission is lower, so that the wall-mounted boiler is more environment-friendly and is more and more valued by consumers. The ignition needle assembly is an important part of a fully premixed water heater (wall-mounted boiler), and on one hand, the ignition needle discharges to generate electric sparks to ignite a gas-air mixture so as to continuously combust the gas; on the other hand, the combustion state of flame is detected through the induction needle, the discharge of the ignition needle is stopped after the gas is ignited, and corresponding treatment can be carried out after the gas is extinguished due to unexpected reasons.
The ignition needle of the existing full premix water heater is generally made of common iron-chromium-aluminum alloy, has a small diameter, can generate rust or bending after long combustion time, and has a simple structure without giving important consideration to the position of the ignition needle and the position of a fire hole of an induction needle relative to a burner, which can affect the normal ignition process and even cause ignition failure or sudden detonation to cause panic of consumers; in addition, the specific structural form of the ignition needle also influences the ignition performance, and the good structure is not easy to cause external abnormal discharge; the poor structure can cause external abnormal discharge, so that customers are easy to panic if the structure is not good, the complete machine can explode if the structure is not good, and certain potential safety hazards exist if the structure is serious; in addition, the common ignition needle and the fixed pressing plate of the ignition needle are designed in a split manner, and the problems of unreliable positioning and poor sealing exist in the assembly process; the ignition needle adopting the flat tail terminal has the advantages that the flat tail terminal is not easy to process, the processing angle is not easy to control, the deflection problem exists, the deflection can reduce the safety distance of ignition to cause external discharge, and the flat terminal is easy to scratch assembly personnel in the sharp assembly process.
An ignition needle and an induction needle of an ignition needle assembly of an existing full premix water heater are usually pressed and fixed by a fixing pressing plate, the positions of the ignition needle and the induction needle are easily affected by assembly factors, and the positioning accuracy of the ignition needle and the induction needle cannot be guaranteed. After assembly, obvious gaps exist between the ignition needle and the induction needle and the pressure plate, so that leakage of smoke generated during combustion of the hot-gas water heater is easily caused, and adverse effects are generated on the health of users. Because the gas combustion temperature of the fully premixed water heater is high, the ignition needle for the common gas water heater is made of Ocr25Al5 iron-chromium-aluminum alloy, the diameter is small, the ignition needle is easy to rust or bend after the gas is combusted for a long time, the discharge ignition of the ignition needle is influenced, and even the ignition is failed or suddenly detonated, so that the consumer is alarmed. In addition, the tail of the ignition needle is connected with an ignition power supply inlet wire by adopting a flat terminal, the machining angle of the flat terminal at the tail of the ignition needle is not easy to control, the ignition needle is easy to deflect, the change of the ignition safety distance or external discharge is caused, and the flat terminal is easy to scratch assembly personnel in the sharp assembly process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a full premix water heater ignition needle subassembly is provided, positioning accuracy is high, simple to operate, and the flue gas is sealed effectual.
The utility model discloses the technical problem that further will solve provides a full premix gas heater, and ignition performance is good, uses healthy, safety.
In order to solve the technical problem, the utility model provides an ignition needle assembly of a full premix water heater, which comprises a first ignition needle, a second ignition needle, an induction needle, insulating ceramics and a mounting plate; the first ignition needle, the second ignition needle and the induction needle respectively penetrate through the corresponding insulating ceramics and are fixed in the insulating ceramics so as to form sealing with the insulating ceramics; the mounting plate is provided with ceramic mounting holes, and the first ignition needle, the second ignition needle and the induction needle are respectively fixed in the ceramic mounting holes corresponding to the first ignition needle, the second ignition needle and the induction needle through the insulating ceramic so as to form an integrated structure sealed between the insulating ceramic and the mounting plate.
Preferably, the utility model discloses a full premix water heater ignition needle subassembly still includes the afterbody terminal, the one end of afterbody terminal is spherical, first ignition needle, second ignition needle and response needle are connected respectively in respective corresponding the other end of afterbody terminal. In the preferred technical scheme, the tail terminal can form a spherical connecting structure at one end of the first ignition needle, the second ignition needle and the induction needle so as to be connected with ignition power wires of the first ignition needle and the second ignition needle and connected with an induction signal wire of the induction needle. Spherical tail terminal not only processing is convenient, can also prevent the fish tail risk that traditional flat terminal or cylindrical terminal sharp edge brought.
Preferably, the first ignition needle is L-shaped, and the distance between the free end of the first ignition needle and the free end of the second ignition needle is 4.8-5.2 mm. By the preferred technical scheme, the free end of the L-shaped first ignition needle can be closer to the free end of the second ignition needle, and the required ignition distance is formed. The ignition distance of 4.8-5.2mm can form larger discharge energy, can ignite the mixed gas of gas and air more easily, and has higher ignition efficiency.
Further preferably, the free end of the sensing needle is bent towards the second ignition needle, so that the free end of the sensing needle is located in front of a gap between the free end of the first ignition needle and the free end of the second ignition needle. In this preferred technical scheme, the distance that the free end of response needle stretches into gas heater combustor inside is longer, can better respond to the gas high temperature that the burning of gas formed.
Preferably, the free ends of the first ignition needle, the second ignition needle and the induction needle are all bent towards the same side of the mounting plate. Through this preferred technical scheme, can make the mounting panel apart from the planar distance of combustor be greater than the distance between the free end of first ignition needle, second ignition needle and response needle and the combustor plane, like this, when the free end of first ignition needle, second ignition needle and response needle was in the design area of combustor, the mounting panel was bigger apart from the planar distance of combustor, reduces the influence of the high temperature of combustor to the mounting panel.
Further preferably, the free ends of the first ignition needle and the second ignition needle are deviated from the side of the mounting plate by 16-18 mm; the free end of the induction needle deviates 14-16mm towards the side of the mounting plate. Through this preferred technical scheme, as long as install the mounting panel in the position of design, just can guarantee that the distance between the free end of first ignition needle, second ignition needle and response needle and the combustor plane all accords with the design requirement.
Preferably, the diameters of the first ignition needle, the second ignition needle and the induction needle are all 2.5-3.5 mm. In the preferred technical scheme, the diameters of the first ignition needle, the second ignition needle and the induction needle are thickened, so that the first ignition needle, the second ignition needle and the induction needle can adapt to the higher combustion temperature of the gas of the fully premixed water heater, and the first ignition needle and the second ignition needle are prevented from deforming under a long-time high-temperature combustion environment, so that the ignition position and the ignition distance are changed, and the ignition effect is influenced; the induction needle is prevented from deforming and sagging under a long-time high-temperature combustion environment, so that the induction needle component is prevented from failing.
As a preferred technical scheme, the first ignition needle, the second ignition needle and the sensing needle are all formed by one material of SYTT, KANTHALD or KANTHALA-1. In the preferred technical scheme, the high temperature resistance of the SYTT, KANTHALD and KANTHALA-1 alloy is better, and the deformation and corrosion of the first ignition needle, the second ignition needle or the induction needle in a high-temperature environment can be better prevented, so that the ignition performance of the ignition needle and the performance of the induction needle for inducing combustion of fuel gas can be better maintained.
Preferably, the insulating ceramic is molded from 95# ceramic material. In the preferred technical scheme, the 95# ceramic has better temperature resistance and insulating property, can better keep the insulativity among the first ignition needle, the second ignition needle and the induction needle and other components of the gas water heater, prevents the generation of abnormal discharge phenomenon and prolongs the service life of the insulating ceramic.
The utility model discloses the second aspect provides a full premix gas heater, include the utility model discloses the full premix water heater ignition needle subassembly that the first aspect provided.
Through the technical scheme, the utility model discloses a full premix water heater ignition needle subassembly, all formed sealedly between ignition needle and response needle and the insulating ceramic and between insulating ceramic and the mounting panel for when the mounting panel was installed on the combustion chamber wall, keep the inside and outside sealing of mounting panel, what prevent that the burning from producing contains NOXAnd the escape of flue gases of CO. Insulating ceramic passes through the fixed connection between ceramic mounting hole and the mounting panel, can prevent that the mounting panel leads to the skew of ignition needle or response needle mounted position when carrying out the pressfitting to insulating ceramic among the traditional ignition needle subassembly, and the positioning accuracy of ignition needle and response needle is higher. The structure of the integral type that forms with ignition needle and response needle fixed on the mounting panel simple to operate, the installation accuracy is also higher. The utility model provides a gas heater mixes in advance entirely has adopted the utility model discloses a water heater ignition needle subassembly mixes in advance entirely, the sealing performance of mounting panel is higher, can prevent leaking of burning flue gas, uses healthyly more, safety. The ignition needle and the induction needle are higher in positioning accuracy, and have better and more lasting ignition performance and induction effect on gas combustion.
Other technical features and advantages of the present invention will be further described in the following detailed description.
Drawings
Fig. 1 is a top view of one embodiment of a fully premixed ignition needle assembly of the present invention;
fig. 2 is a side view of one embodiment of a fully premixed ignition needle assembly of the present invention;
fig. 3 is a front view of one embodiment of a fully premixed ignition needle assembly of the present invention;
FIG. 4 is a bottom view of the firing pin assembly mounting location of an embodiment of the fully premixed gas water heater of the present invention;
fig. 5 is a front view of the installation position of the ignition needle assembly of an embodiment of the fully premixed gas water heater of the present invention.
Description of the reference numerals
1 first ignition needle 2 second ignition needle
3 induction needle 4 insulating ceramic
5 mounting plate 51 ceramic mounting hole
52 assembly hole 6 tail terminal
7 burner
Detailed Description
In the present invention, unless otherwise specified, the positional or orientational relationships as indicated by the terms "upper, lower, front and rear" are used to describe the positional or orientational relationships of the devices or components based on the drawings. In the fully premixed ignition needle assembly of the present invention, the direction indicated by the direction word "front" is the direction in which the free end of the ignition needle is pointing.
In the present description, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, so that the features defined "first", "second" may explicitly or implicitly include one or more of said features.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and for example, the term "connected" may be a fixed connection, a detachable connection, or an integral connection; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, and it should be understood that the embodiments described herein are merely for purposes of illustration and explanation, and the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1 to 3, an embodiment of the ignition needle assembly of the fully premixed water heater of the present invention includes a first ignition needle 1, a second ignition needle 2, an induction needle 3, an insulating ceramic 4 and a mounting plate 5. The insulating ceramic 4 may be provided in a cylindrical shape or a prismatic shape; the shape of the truncated cone or the shape of the truncated cone can also be set. The outer surface of the insulating ceramic 4 may also be provided with positioning structures to facilitate positioning of the insulating ceramic 4 in the assembly. The insulating ceramic 4 is provided with a central mounting hole, and the first ignition needle 1, the second ignition needle 2 and the induction needle 3 respectively penetrate through the central mounting hole to be fixed in the corresponding insulating ceramic 4. The first ignition needle 1, the second ignition needle 2 and the sensing needle 3 are made of high temperature resistant materials, and are generally made of Ocr25AL5 iron-chromium-aluminum alloy materials. Can fix in the central mounting hole on insulating ceramic 4 through the adhesive between first ignition needle 1, second ignition needle 2 and response needle 3 and insulating ceramic 4, form the position location between needle body and the insulating ceramic 4 on the one hand, on the other hand forms the sealed between needle body and the insulating ceramic 4, prevents that the comdenstion water from getting into the peripheral gap formation short circuit of needle body, causes outside discharge or ignition needle work to become invalid. The mounting plate 5 is provided with a plurality of ceramic mounting holes 51, and the insulating ceramic 4 can be mounted in the ceramic mounting holes 51 through the ceramic mounting holes 51. The ceramic mounting holes 51 may be linearly arranged on the mounting plate 5, and the first ignition needle 1, the second ignition needle 2, and the sensing needle 3 are respectively fixed in the respective corresponding ceramic mounting holes 51 through the insulating ceramics 4. The insulating ceramic 4 and the mounting plate 5 can be fixedly connected through an adhesive to form sealing between the insulating ceramic 4 and the mounting plate 5, so that the leakage of smoke generated by gas combustion is prevented; and the first ignition needle 1, the second ignition needle 2, the induction needle 3, the insulating ceramic 4 and the mounting plate 5 are fixed together to form the integrated ignition needle assembly of the fully premixed water heater.
In some embodiments of the fully premixed water heater ignition pin assembly of the present invention, as shown in fig. 1-3, the fully premixed water heater ignition pin assembly of the present invention further comprises a tail terminal 6. The tail terminal 6 may be made of a metal material, and one end of the tail terminal 6 is a generally spherical smooth structure and the other end is a connection end. The first ignition needle 1, the second ignition needle 2 and the sensing needle 3 are respectively connected with the connecting end of a tail terminal to form a smooth connecting structure for being connected with an external lead. The tail terminal 6 can be connected with the end parts of the first ignition needle 1, the second ignition needle 2 and the induction needle 3 in a threaded connection mode, and can also be connected in an interference fit mode and the like. One end is that spherical afterbody terminal 6 not only processes, the assembly is comparatively convenient, can form smooth structure at the tip of first ignition needle 1, second ignition needle 2 and response needle 3, prevents the safety risk that the structure that the needle body tip is sharp causes.
As a specific embodiment of the ignition needle assembly of the fully premixed water heater of the present invention, as shown in fig. 1 and 3, the first ignition needle 1 is L-shaped, so that the free end of the first ignition needle 1 is closer to the second ignition needle 2 when the distance between the needle body of the first ignition needle 1 and the second ignition needle 2 is larger. Generally, the second ignition needle 2 is linear; the free ends of the first ignition needle 1 and the second ignition needle 2 are provided with tapered tips to facilitate the formation of a tip discharge between the free ends of the first ignition needle 1 and the second ignition needle 2. The gap between the free end of the first ignition needle 1 and the free end of the second ignition needle 2 is called an ignition gap, and the ignition gap can be set to be 4.8-5.2mm, and at the distance, the discharge energy between the free ends of the first ignition needle 1 and the second ignition needle 2 is larger, so that the gas-air mixture is easier to ignite. The larger interval between the needle body of the first ignition needle 1 and the second ignition needle 2 can prevent abnormal discharge between the needle body of the first ignition needle 1 and the needle body of the second ignition needle 2.
In some embodiments of the ignition needle assembly of the fully premixed water heater of the present invention, as shown in fig. 1 to 4, the needle body of the sensing needle 3 extends forward, and after exceeding the free end of the ignition needle by a certain distance, it is bent toward the second ignition needle 2, so that the free end of the sensing needle 3 is located in front of the ignition gap. Generally, the needle body of the sensing needle 3 can be bent towards the second ignition needle 2 after exceeding the ignition gap by 10mm, and the sensing needle 3 forms a bending angle of about 120 degrees at the bending position. Thus, the utility model discloses a when full premix water heater ignition needle subassembly is in the user state, the free end of response needle 3 can be located the deeper position of combustor 7, can detect the combustion state of gas better.
In some embodiments of the ignition needle assembly of the fully premixed water heater of the present invention, as shown in fig. 2, 3 and 5, the first ignition needle 1, the second ignition needle 2 and the sensing needle 3 are fixed on the horizontal central axis of the mounting plate 5, and the free ends of the first ignition needle 1, the second ignition needle 2 and the sensing needle 3 are all deviated from the horizontal central axis and are bent toward the same side of the horizontal central axis of the mounting plate 5. Such bending structure can make the utility model discloses a full premix water heater ignition needle subassembly is under the user state, and the distance of the free end of first ignition needle 1, second ignition needle 2 and response needle 3 apart from combustor 7 is less than the distance of mounting panel 5 apart from combustor 7. That is, when the free ends of the first ignition needle 1, the second ignition needle 2, and the sensing needle 3 are located at a set distance from the burner 7 in the use state, the mounting plate 5 is located at a greater distance from the burner 7. During combustion of the gas, the temperature of the mounting plate 5 and the connecting structure thereof is lower, and the damage to the mounting plate 5 and the connecting structure thereof caused by high temperature is lower.
As a specific embodiment of the ignition needle assembly of the fully premixed water heater of the present invention, as shown in fig. 2, a distance d1 of the free ends of the first ignition needle 1 and the second ignition needle 2 deviating from the horizontal central axis of the mounting plate 5 is 16-18mm, and a distance d2 of the free end of the induction needle 3 deviating from the horizontal central axis of the mounting plate 5 is 14-16 mm. Thus, when the utility model discloses a full premix water heater ignition needle subassembly is in the user state, can make the flame detection position of the ignition clearance between first ignition needle 1 and the second ignition needle 2 and response needle 3 all be in suitable position, when guaranteeing ignition performance and gas combustion state detection effect, the temperature of mounting panel 5 department is unlikely to too high, can also guarantee the installation stability of ignition needle subassembly simultaneously.
In some embodiments of the fully premixed water heater ignition needle assembly of the present invention, the diameters of the first ignition needle 1, the second ignition needle 2 and the sensing needle 3 are all set to 2.5-3.5 mm. Compared with the diameter of a needle body of 2mm in the traditional ignition needle assembly, the diameter of the thickened needle body can prevent the ignition needle and the induction needle 3 from sagging caused by long-time combustion at the higher combustion temperature of the fully premixed water heater, so that the ignition gap and the ignition position of the ignition needle are changed, and difficult ignition or abnormal discharge is caused; causing the sensing position of the sensing pin 3 to change, causing sensing obstruction and even failure of the sensing pin 3.
In some embodiments of the fully premixed water heater ignition needle assembly of the present invention, the first ignition needle 1, the second ignition needle 2 and the sensing needle 3 are all made of one of the materials SYTT, KANTHALD or KANTHALA-1. The materials for manufacturing the first ignition needle 1, the second ignition needle 2 and the induction needle 3 can be the same or different. SYTT is an yttrium-containing iron-chromium-aluminum alloy, KANTHALD and KANTHALA-1 are two different brands of iron-chromium-aluminum alloys, and the three alloy materials have better high temperature resistance, can better resist deformation and oxidation of an ignition needle and an induction needle in a high-temperature environment, ensure the discharge capacity of the ignition needle and prolong the service life of the ignition needle and the induction needle.
As a specific embodiment of the ignition needle assembly of the fully premixed water heater of the present invention, the insulating ceramic 4 is made of 95# ceramic material. The 95# ceramic has excellent temperature resistance and insulating property, can better prevent the insulating ceramic 4 from being damaged due to long-time work in a high-temperature environment, and can prevent abnormal discharge from being generated between the ignition needle and the mounting plate 5, between the insulating ceramic 4 for fixing the ignition needle or between the ignition needle and a burner due to combustion carbon deposition and the like.
In an embodiment of the fully premixed gas water heater of the present invention, as shown in fig. 4 and 5, the ignition needle assembly of any embodiment of the present invention is used. As shown in fig. 3, the mounting plate 5 of the ignition needle assembly may be provided with a mounting hole 52, and the ignition needle assembly is mounted on the heat exchanger below the burner 7 of the full premix water heater through the mounting hole 52, so that the ignition gap between the first ignition needle 1 and the second ignition needle 2 is located right below the fire hole to increase the success rate of ignition. Meanwhile, the distance between the ignition gap between the first ignition needle 1 and the second ignition needle 2 and the combustor 7 is kept to be 6-10mm, so that the deflagration of the fuel gas is prevented from being caused when the ignition is stopped, and the normal induction of the induction needle 3 to the combustion state of the fuel gas can be ensured. When the ignition needle assembly is installed, the sealing between the installation plate and the heat exchanger is ensured, the leakage of smoke generated by gas combustion is prevented, condensed water possibly generated in the heat exchange process is isolated, the potential influence of the smoke leakage on the human health when the gas water heater works is avoided, and the safety and the reliability of the gas water heater during use are improved.
In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "a specific implementation," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present disclosure, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical idea of the present invention is that it is possible to combine the simple variants of the technical solution of the present invention, including each specific technical feature, in any suitable way. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.
Claims (10)
1. An ignition needle assembly of a fully premixed water heater is characterized by comprising a first ignition needle (1), a second ignition needle (2), an induction needle (3), insulating ceramic (4) and a mounting plate (5); the first ignition needle (1), the second ignition needle (2) and the induction needle (3) respectively penetrate through the corresponding insulating ceramics (4) and are fixed in the insulating ceramics (4) so as to form a seal with the insulating ceramics (4); be provided with ceramic mounting hole (51) on mounting panel (5), first ignition needle (1), second ignition needle (2) and response needle (3) pass through respectively insulating ceramic (4) are fixed respectively correspond in ceramic mounting hole (51), in order to form insulating ceramic (4) with sealed integral type structure between mounting panel (5).
2. The ignition needle assembly of the full premix water heater according to claim 1, further comprising a tail terminal (6), wherein one end of the tail terminal (6) is spherical, and the first ignition needle (1), the second ignition needle (2) and the induction needle (3) are respectively connected to the other end of the tail terminal (6).
3. The fully premixed water heater firing pin assembly according to claim 1, wherein the first firing pin (1) is L-shaped, and the distance between the free end of the first firing pin (1) and the free end of the second firing pin (2) is 4.8-5.2 mm.
4. The ignition needle assembly of a fully premixed water heater according to claim 3, characterized in that the free end of the induction needle (3) is bent toward the second ignition needle (2) so that the free end of the induction needle (3) is located in front of the gap between the free end of the first ignition needle (1) and the free end of the second ignition needle (2).
5. The ignition needle assembly of a fully premixed water heater according to claim 1, characterized in that the free ends of the first ignition needle (1), the second ignition needle (2) and the sensing needle (3) are all bent towards the same side of the mounting plate (5).
6. The fully premixed water heater firing pin assembly of claim 5, wherein the free ends of the first firing pin (1) and the second firing pin (2) are offset 16-18mm to the side of the mounting plate (5); the free end of the induction needle (3) deviates 14-16mm towards the side of the mounting plate (5).
7. The ignition needle assembly of the fully premixed water heater according to claim 1, wherein the diameters of the first ignition needle (1), the second ignition needle (2) and the induction needle (3) are all 2.5-3.5 mm.
8. The fully premixed water heater firing pin assembly according to any one of claims 1-7, wherein the first firing pin (1), the second firing pin (2), and the sensing pin (3) are each molded from one of the materials SYTT, KANTHALD, or KANTHALA-1.
9. The fully premixed water heater firing pin assembly of any one of claims 1-7 wherein the insulating ceramic (4) is molded from a 95# ceramic material.
10. A fully premixed gas water heater comprising the fully premixed water heater firing pin assembly of any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022526925.3U CN214065321U (en) | 2020-11-04 | 2020-11-04 | Ignition needle assembly of full-premix water heater and full-premix gas water heater |
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| CN202022526925.3U CN214065321U (en) | 2020-11-04 | 2020-11-04 | Ignition needle assembly of full-premix water heater and full-premix gas water heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508858A (en) * | 2022-02-22 | 2022-05-17 | 杭州老板电器股份有限公司 | Ignition needle assembly, gas water heater and control method of gas water heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508858A (en) * | 2022-02-22 | 2022-05-17 | 杭州老板电器股份有限公司 | Ignition needle assembly, gas water heater and control method of gas water heater |
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