Ignition needle integrating ignition and flame detection

Abstract

The utility model discloses an ignition and flame detection integrated ignition needle, which relates to the technical field of ignition needles and comprises an insulating ceramic body, a first pair of ignition mechanisms and a second pair of ignition mechanisms are respectively mounted on two sides of the insulating ceramic body in a penetrating manner. According to the ignition device, the two opposite first ignition electrodes and the two opposite second ignition electrodes are used for releasing electric arcs for ignition, ignition to the ground is not needed, ignition is easy, an anti-creepage groove is formed between every two longitudinal through holes, and the flame detection mechanism is installed in the middle of the insulation ceramic body in a penetrating mode. The gap and the creepage distance between the ignition electrodes on the ceramic surface are increased, high-voltage creepage is prevented, the end of the flame induction needle is Z-shaped, the flame detection area is increased, the transverse parallel electrodes of the Z-shaped flame induction needle are low and high, the effective stroke range of the height between the flame induction needle and the burner surface is increased, and the flame detection efficiency is improved. And flame signals can be effectively sensed in time in a range from soft fire to big fire.

Description

Technical Field

[0001] The utility model relates to the technical field of ignition needles, in particular to an ignition needle integrating ignition and flame detection. Background Art

[0002] When it comes to ignition and flame induction feedback in gas stoves during ignition and firing, the ceramic ignition needle, as a common appliance in life, seems like a small and unassuming tool, but it can play a great role and directly affect the quality and safety of gas stoves. Currently, many gas stoves use one or more single-point ignition needles for ignition, and the flame induction is also a single needle. For the existing ignition method, due to single-point ignition, the high-voltage pulse during ignition will interfere with the control system and power supply, easily causing control system failures; secondly, the distance between the discharge arc of the single-needle ignition needle and the burner cannot be adjusted. Since the calorific value and pressure of the gas in our country are not up to standard, when the equipment leaves the factory, the manufacturer designs it according to the standard air pressure and calorific value. If the gas pressure of the user is too high or too low, it will cause ignition difficulties and failures. Once ignition is difficult, there may be safety hazards such as gas deflagration or gas leakage; due to the instability of the gas pressure, the burning flame will also fluctuate up and down with the change of pressure, which easily causes unstable signals for the flame induction needle; the ignition needle and the flame induction needle are independent bodies, and it is time-consuming to install, and the efficiency cannot be improved. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides an ignition needle integrating ignition and flame detection, which solves the problems in the background art.

[0004] To achieve the above objectives, the utility model is realized through the following technical solutions: an ignition needle integrating ignition and flame detection, including an insulating ceramic body, on both sides of which are respectively penetrated and installed a first pair of ignition mechanisms and a second pair of ignition mechanisms, and in the middle position of the insulating ceramic body is penetrated and installed a flame detection mechanism;

[0005] The first pair of ignition mechanisms includes two first insulating ceramic blocks symmetrically and fixedly connected to one side of the upper surface of the insulating ceramic body. The top end of the first insulating ceramic block is penetrated and installed with a first ignition electrode. On the lower surface of the insulating ceramic body are symmetrically and fixedly connected with two second insulating ceramic blocks corresponding to the first insulating ceramic blocks. One end of the first ignition electrode sequentially penetrates the insulating ceramic body and the second insulating ceramic block and is fixedly connected with a first wiring terminal;

[0006] The second pair of ignition mechanisms includes two third insulating ceramic blocks symmetrically and fixedly connected to the other side of the upper surface of the insulating ceramic body. A second ignition electrode is installed through the top end of the third insulating ceramic block. Two fourth insulating ceramic blocks corresponding to the third insulating ceramic blocks are symmetrically and fixedly connected to the lower surface of the insulating ceramic body. One end of the second ignition electrode sequentially passes through the insulating ceramic body and the fourth insulating ceramic block and is fixedly connected to a second wiring terminal.

[0007] Preferably, the top ends of the first ignition electrode and the second ignition electrode are both L-shaped and one end is needle-shaped. The two first ignition electrodes and the two second ignition electrodes are symmetrically arranged, with the needle-shaped ends of the electrodes facing each other. The distance between the needle-shaped ends of adjacent two electrodes is narrower than other positions between adjacent two electrodes, which is easy to discharge and easier to generate an arc.

[0008] Preferably, the flame detection mechanism includes a fifth insulating ceramic block fixedly installed at the middle position of the upper surface of the insulating ceramic body. A flame sensing needle is installed through the top end of the fifth insulating ceramic block. A sixth insulating ceramic block corresponding to the fifth insulating ceramic block is fixedly connected to the center position of the lower surface of the insulating ceramic body. One end of the flame sensing needle sequentially passes through the insulating ceramic body and the sixth insulating ceramic block and is fixedly connected to a third wiring terminal. The top end of the flame sensing needle is "Z"-shaped, and the top end of the flame sensing needle is longer than the first ignition electrode and the second ignition electrode, increasing the flame detection area.

[0009] Preferably, the first insulating ceramic block, the second insulating ceramic block, the third insulating ceramic block, the fourth insulating ceramic block, the fifth insulating ceramic block, and the sixth insulating ceramic block are all integrally formed with the insulating ceramic body. The height of the two first insulating ceramic blocks is greater than the height of the two third insulating ceramic blocks. The integrally formed structure can increase the structural strength.

[0010] Preferably, U-shaped card slots are provided at the tops of the first insulating ceramic block, the third insulating ceramic block, and the fifth insulating ceramic block. The U-shaped card slots cooperate with the first ignition electrode, the second ignition electrode, and the flame sensing needle. A plurality of longitudinal through holes are provided inside the insulating ceramic body, facilitating the installation of the corresponding first ignition electrode, second ignition electrode, and flame sensing needle.

[0011] Preferably, anti-tracking grooves are provided between adjacent two first insulating ceramic blocks and between adjacent two third insulating ceramic blocks, increasing the gap and creepage distance between the ignition electrodes on the ceramic surface, preventing high-voltage tracking, and effectively solving the problem of ignition failure caused by high-voltage leakage and tracking of the ignition needle due to moisture absorption.

[0012] Preferably, a plurality of fixing holes are sequentially provided on the outer surface of the insulating ceramic body, facilitating the overall installation.

[0013] The utility model provides an igniting needle integrating ignition and flame detection, which has the following beneficial effects:

[0014] For the igniting needle integrating ignition and flame detection, the insulating ceramic body is sintered from ceramic materials with high temperature resistance and insulation properties, having the effects of high temperature resistance and not being prone to cracking. During use, electric arcs are directly released for ignition through two opposite first ignition electrodes and two second ignition electrodes, without the need for grounding ignition. It is convenient to install and easy to ignite, effectively solving the technical problems of difficult ignition and ignition failure of gas stoves with unstable gas calorific value and gas pressure in various regions of our country. A creepage prevention groove is provided between each longitudinal through hole at the upper and lower ends of the insulating ceramic body, increasing the gap and creepage distance between the ignition electrodes on the ceramic surface, preventing high-voltage creepage, and effectively solving the problem of ignition failure caused by high-voltage leakage and creepage of the electrodes due to the moisture absorption of the igniting needle; both the igniting needle and the flame sensing needle are made of alloy materials with high temperature resistance, corrosion resistance, not being prone to deformation and oxidation, having strong anti-aging ability. The end of the flame sensing needle is in a "Z" shape, increasing the flame detection area, and the electrodes of the "Z" shaped flame sensing needle that are horizontally parallel to each other are one high and one low, increasing the effective stroke range of the height between the flame sensing needle and the surface of the burner, and being able to effectively sense the flame signal in a timely manner within the range from a small flame to a large flame. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 is a top view of the utility model;

[0017] Figure 3 is a side view of the utility model.

[0018] In the figure, 1. insulating ceramic body; 2. first pair of ignition mechanisms; 21. first insulating ceramic block; 22. first ignition electrode; 23. second insulating ceramic block; 24. first wiring terminal; 3. second pair of ignition mechanisms; 31. third insulating ceramic block; 32. second ignition electrode; 33. fourth insulating ceramic block; 34. second wiring terminal; 4. flame detection mechanism; 41. fifth insulating ceramic block; 42. flame sensing needle; 43. sixth insulating ceramic block; 44. third wiring terminal; 5. U-shaped card slot; 6. longitudinal through hole; 7. creepage prevention groove; 8. fixed hole position. Detailed Embodiments

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0020] Embodiment 1:

[0021] As Figures 1 to 3 shown, an ignition needle integrating ignition and flame detection includes an insulating ceramic body 1. On both sides of the insulating ceramic body 1, a first pair of ignition mechanisms 2 and a second pair of ignition mechanisms 3 are respectively installed through. In the middle position of the insulating ceramic body 1, a flame detection mechanism 4 is installed through.

[0022] The first pair of ignition mechanisms 2 includes two first insulating ceramic blocks 21 symmetrically and fixedly connected to one side of the upper surface of the insulating ceramic body 1. Inside the top end of the first insulating ceramic block 21, a first ignition electrode 22 is installed through. On the lower surface of the insulating ceramic body 1, two second insulating ceramic blocks 23 corresponding to the first insulating ceramic blocks 21 are symmetrically and fixedly connected. One end of the first ignition electrode 22 sequentially passes through the insulating ceramic body 1 and the second insulating ceramic block 23 and is fixedly connected to a first wiring terminal 24. The second pair of ignition mechanisms 3 includes two third insulating ceramic blocks 31 symmetrically and fixedly connected to the other side of the upper surface of the insulating ceramic body 1. Inside the top end of the third insulating ceramic block 31, a second ignition electrode 32 is installed through. On the lower surface of the insulating ceramic body 1, two fourth insulating ceramic blocks 33 corresponding to the third insulating ceramic blocks 31 are symmetrically and fixedly connected. One end of the second ignition electrode 32 sequentially passes through the insulating ceramic body 1 and the fourth insulating ceramic block 33 and is fixedly connected to a second wiring terminal 34. The top ends of the first ignition electrode 22 and the second ignition electrode 32 are both L-shaped and one end is needle-shaped. The two first ignition electrodes 22 and the two second ignition electrodes 32 are symmetrically arranged. When igniting, an arc is directly released through the two opposite first ignition electrodes 22 and the two second ignition electrodes 32 for ignition, without the need for ground ignition. It is convenient to install and easy to ignite, effectively solving the technical problems of difficult ignition and ignition failure of gas stoves with unstable gas calorific value and gas pressure in various regions of our country.

[0023] Embodiment 2:

[0024] As Figures 1 to 3As shown in the figure, the flame detection mechanism 4 includes a fifth insulating ceramic block 41 fixedly installed at the middle position of the upper surface of the insulating ceramic body 1. A flame induction needle 42 is installed through the top end of the fifth insulating ceramic block 41. At the center position of the lower surface of the insulating ceramic body 1, a sixth insulating ceramic block 43 corresponding to the fifth insulating ceramic block 41 is fixedly connected. One end of the flame induction needle 42 sequentially passes through the insulating ceramic body 1 and the sixth insulating ceramic block 43 and is fixedly connected to a third terminal 44. The top end of the flame induction needle 42 is in a "Z" shape, and the top end of the flame induction needle 42 is longer than the first ignition electrode 22 and the second ignition electrode 32. The end of the flame induction needle 42 is in a "Z" shape, which increases the flame detection area. The electrodes of the "Z" - shaped flame induction needle 42 that are horizontally parallel to each other are one high and one low, increasing the effective stroke range of the height between the flame induction needle 42 and the surface of the burner, and can effectively sense the flame signal in a timely manner within the range from a small flame to a large flame.

[0025] Embodiment 3:

[0026] As Figures 1 to 3 shown, the first insulating ceramic block 21, the second insulating ceramic block 23, the third insulating ceramic block 31, the fourth insulating ceramic block 33, the fifth insulating ceramic block 41 and the sixth insulating ceramic block 43 are all integrally formed structures with the insulating ceramic body 1. The height of the two first insulating ceramic blocks 21 is greater than the height of the two third insulating ceramic blocks 31. U - shaped card slots 5 are opened at the tops of the first insulating ceramic block 21, the third insulating ceramic block 31 and the fifth insulating ceramic block 41. The U - shaped card slots 5 cooperate with the first ignition electrode 22, the second ignition electrode 32 and the flame induction needle 42. A plurality of longitudinal through - holes 6 are opened inside the insulating ceramic body 1. Anti - creepage grooves 7 are opened between two adjacent first insulating ceramic blocks 21 and between two adjacent third insulating ceramic blocks 31. A plurality of fixing holes 8 are sequentially opened on the outer surface of the insulating ceramic body 1. Anti - creepage grooves 7 are provided between each longitudinal through - hole 6 at the upper and lower ends of the insulating ceramic body 1, increasing the gap and creepage distance between the ignition electrodes on the ceramic surface, preventing high - voltage creepage, and effectively solving the problem of ignition failure caused by the moisture absorption of the ignition needle resulting in high - voltage leakage and creepage of the electrode.

[0027] Working principle: When in use, the insulating ceramic body 1 is installed on the burner through the installation vacancy. The insulating ceramic body 1 is sintered from high-temperature resistant and insulating ceramic materials, having the effects of high-temperature resistance and not being prone to cracking. When igniting, an electric arc is directly released for ignition through two opposite first ignition electrodes 22 and two second ignition electrodes 32, without the need for grounding ignition. It is convenient to install and easy to ignite, effectively solving the technical problems of difficult ignition and ignition failure of gas stoves with unstable gas calorific value and gas pressure in various regions of our country; between each longitudinal through hole 6 at the upper and lower ends of the insulating ceramic body 1, there is an anti-tracking groove 7, increasing the gap and creepage distance between the ignition electrodes on the ceramic surface, preventing high-voltage tracking, and effectively solving the problem of ignition failure caused by high-voltage leakage and tracking of the electrode due to the dampness of the ignition needle; the first ignition electrode 22, the second ignition electrode 32, and the flame sensing needle 42 are all made of alloy materials with high-temperature resistance, corrosion resistance, not being prone to deformation and oxidation, having strong anti-aging ability. The end of the flame sensing needle 42 is in a "Z" shape, increasing the flame detection area, and the electrodes of the "Z" shaped flame sensing needles 42 that are horizontally parallel to each other are one low and one high, increasing the effective stroke range of the height between the flame sensing needle 42 and the surface of the burner, and being able to timely and effectively sense the flame signal within the range from a small flame to a large flame.

[0028] The above shows and describes the basic principles, main features, and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0029] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An ignition needle integrating ignition and flame detection, comprising an insulating ceramic body (1), characterized in that: On both sides of the insulating ceramic body (1), a first pair of ignition mechanisms (2) and a second pair of ignition mechanisms (3) are respectively installed through. A flame detection mechanism (4) is installed through at the middle position of the insulating ceramic body (1). The first pair of ignition mechanisms (2) includes two first insulating ceramic blocks (21) symmetrically and fixedly connected to one side of the upper surface of the insulating ceramic body (1). A first ignition electrode (22) is installed through the top end of the first insulating ceramic block (21). Two second insulating ceramic blocks (23) corresponding to the first insulating ceramic blocks (21) are symmetrically and fixedly connected to the lower surface of the insulating ceramic body (1). One end of the first ignition electrode (22) sequentially passes through the insulating ceramic body (1) and the second insulating ceramic block (23) and is fixedly connected to a first wiring terminal (24). The second pair of ignition mechanisms (3) includes two third insulating ceramic blocks (31) symmetrically and fixedly connected to the other side of the upper surface of the insulating ceramic body (1). A second ignition electrode (32) is installed through the top end of the third insulating ceramic block (31). Two fourth insulating ceramic blocks (33) corresponding to the third insulating ceramic blocks (31) are symmetrically and fixedly connected to the lower surface of the insulating ceramic body (1). One end of the second ignition electrode (32) sequentially passes through the insulating ceramic body (1) and the fourth insulating ceramic block (33) and is fixedly connected to a second wiring terminal (34).

2. The ignition needle integrating ignition and flame detection according to claim 1, characterized in that: The top ends of the first ignition electrode (22) and the second ignition electrode (32) are both L-shaped and one end is needle-shaped. The two first ignition electrodes (22) and the two second ignition electrodes (32) are symmetrically arranged.

3. The ignition pin integrated with ignition and flame detection according to claim 2, wherein: The flame detection mechanism (4) includes a fifth insulating ceramic block (41) fixedly installed at the middle position of the upper surface of the insulating ceramic body (1). A flame sensing needle (42) is installed through the top end of the fifth insulating ceramic block (41). A sixth insulating ceramic block (43) corresponding to the fifth insulating ceramic block (41) is fixedly connected to the center position of the lower surface of the insulating ceramic body (1). One end of the flame sensing needle (42) sequentially passes through the insulating ceramic body (1) and the sixth insulating ceramic block (43) and is fixedly connected to a third wiring terminal (44). The top end of the flame sensing needle (42) is Z-shaped, and the top end of the flame sensing needle (42) is longer than the first ignition electrode (22) and the second ignition electrode (32).

4. The ignition needle integrating ignition and flame detection according to claim 3, characterized in that: The first insulating ceramic block (21), the second insulating ceramic block (23), the third insulating ceramic block (31), the fourth insulating ceramic block (33), the fifth insulating ceramic block (41) and the sixth insulating ceramic block (43) are all integrally formed with the insulating ceramic body (1). The height of the two first insulating ceramic blocks (21) is greater than the height of the two third insulating ceramic blocks (31).

5. The igniter needle integrating ignition and flame detection according to claim 4, characterized in that: The tops of the first insulating ceramic block (21), the third insulating ceramic block (31) and the fifth insulating ceramic block (41) are all provided with U-shaped card slots (5), and the U-shaped card slots (5) are matched with the first ignition electrode (22), the second ignition electrode (32) and the flame sensing needle (42). A plurality of longitudinal through holes (6) are provided inside the insulating ceramic body (1).

6. The ignition needle integrating ignition and flame detection according to claim 1, characterized in that: Anti-tracking grooves (7) are provided between two adjacent first insulating ceramic blocks (21) and between two adjacent third insulating ceramic blocks (31).

7. The igniter needle integrated with ignition and flame detection according to claim 1, wherein: A plurality of fixed hole positions (8) are successively provided on the outer surface of the insulating ceramic body (1).

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