Ignition device for gas heating water heater

Abstract

The utility model discloses an ignition device for a gas heating water heater, which comprises a ceramic plate, a first ignition needle, a second ignition needle and a temperature sensing probe, the first ignition needle, the second ignition needle and the temperature sensing probe are mounted on the ceramic plate, and the first ignition needle is provided with a first bent end bent towards the direction of the second ignition needle. The second ignition needle is provided with a second bent end bent towards the first ignition needle, the temperature sensing probe is provided with a third bent end and a fourth bent end, and the third bent end and the fourth bent end form an L-shaped structure. According to the ignition device, the ignition needle is bent for the first time, and the temperature sensing probe is bent for the second time, so that the number of bent nodes is reduced, the machining precision of the ignition needle is guaranteed, the more accurate size of the ignition distance is further guaranteed, meanwhile, the lengths of the ignition needle and the probe are reduced, and the ignition efficiency is improved. The heat resistance of the ignition needle and the probe can be improved, deformation is reduced, and the service life of the ignition needle and the probe is further prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to ignition equipment technical field, concretely relates to a kind of ignition device for gas heating water heater. BACKGROUND

[0002] Gas heating water heater, simply called wall-hung stove, is a kind of hot water boiler that uses gas combustion to heat water to a certain temperature, and realizes heating requirements through heating pipes and radiators, belonging to the category of civilian life boilers. Ignition equipment is used to generate electric sparks to ignite the mixed gas on the surface of the burner in the gas heating water heater, producing high-temperature flue gas.

[0003] Currently, the ignition electrode devices on the market are generally fixed on the mounting structure of the burner directly through screws, and the ignition function is completed through the detection and discharge of the three-pin electric spark electrode probe extended from the main body, which contains two electrodes and one flame detection probe. However, the electrodes and probes need to be bent multiple times during production, which affects the processing precision. In addition, the electrodes and probes directly contact the heat source during combustion, and the repeatedly bent electrodes and probes are prone to deformation in high-temperature environments, affecting their working effect. SUMMARY

[0004] To overcome the shortcomings of the prior art, the utility model provides an ignition device for a gas heating water heater to solve the above-mentioned traditional problems.

[0005] The utility model adopts the following technical solutions:

[0006] An ignition device for a gas heating water heater includes a ceramic plate, a first ignition needle, a second ignition needle, and a temperature sensing probe mounted on the ceramic plate. The first ignition needle has a first bent end bent towards the second ignition needle. The second ignition needle has a second bent end bent towards the first ignition needle. The temperature sensing probe has a third bent end and a fourth bent end, and the third bent end and the fourth bent end form an L-shaped structure.

[0007] Preferably, the first bent end and the first ignition needle form a bending angle of 48°-55°. The second bent end and the second ignition needle form a bending angle of 48°-55°. The third bent end and the temperature sensing probe form a bending angle of 45°-55°.

[0008] Preferably, the first bent end and the first ignition needle form a bending angle of 52°. The second bent end and the second ignition needle form a bending angle of 52°. The third bent end and the temperature sensing probe form a bending angle of 48°.

[0009] Preferably, the angle formed by the extension line of the first bent end and the extension line of the second bent end is 25-35°.

[0010] Preferably, the angle formed by the extension line of the first bent end and the extension line of the second bent end is 30°.

[0011] Preferably, the distance between the first bent end and the second bent end is 3-5 mm.

[0012] Preferably, the ceramic plate is provided with a plurality of through holes, fixing holes and positioning blocks for the first ignition needle, the second ignition needle and the temperature sensing probe, the through holes are equidistantly arranged, the first, second and third avoiding positions are arranged between the through holes, the first avoiding position is in a concave structure, the second avoiding position is in an arc hole structure, and the third avoiding position is in a C-shaped structure; the fixing holes cooperate with the positioning blocks to work.

[0013] Preferably, the ignition device further comprises a first connecting cable, a second connecting cable and a third connecting cable, the first connecting cable is used for connecting the first ignition needle, the second connecting cable is used for connecting the second ignition needle, and the third connecting cable is used for connecting the temperature sensing probe.

[0014] Preferably, the ignition device further comprises a heat shrink tube sheath, the heat shrink tube sheath is sleeved on the first connecting cable and the second connecting cable.

[0015] Preferably, the ignition device further comprises a wire sheath, the wire sheath is provided with a first through hole, a second through hole and a clamping port, the first through hole is used for threading the heat shrink tube sheath containing the first connecting cable and the second connecting cable, and the second through hole is used for threading the third connecting cable.

[0016] Compared with the prior art, the ignition device has the beneficial effects that:

[0017] The ignition device reduces the number of bending points by bending the ignition needle once and bending the temperature sensing probe twice, ensures the machining precision of the ignition needle, further ensures that the size of the ignition distance is more accurate, also reduces the length of the ignition needle and the probe, can improve the heat resistance and reduce the deformation of the ignition needle and the probe, and further prolongs the service life of the ignition needle and the probe. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a structural schematic view of the ignition device of the utility model;

[0019] Figure 2 is Figure 1Side view of the ignition device, wherein the wire protection sleeve and the connecting cable are not shown;

[0020] Figure 3 For Figure 2 Top view of the ignition device shown;

[0021] Figure 4 For Figure 1 Schematic view of the wire protection sleeve shown;

[0022] Figure 5 For Figure 4 Cross-sectional view at A-A shown;

[0023] Figure 6 For Figure 4 Cross-sectional view at B-B shown.

[0024] In the figure: 10, ceramic plate; 11, fixing hole; 12, positioning block; 13, first avoiding position; 14, second avoiding position; 15, third avoiding position; 20, first ignition needle; 21, first bent end; 30, second ignition needle; 31, second bent end; 40, temperature sensing probe; 41, third bent end; 42, fourth bent end; 50, first connecting cable; 51, second connecting cable; 52, third connecting cable; 53, heat shrink tube sleeve; 54, wire protection sleeve. DETAILED DESCRIPTION

[0025] In order to make the above object, features and advantages of the present application more apparent and understandable, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways other than those described herein without departing from the spirit of the present application, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0026] In the description of the present application, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0027] In the description of the present application, it should be understood that when an element is considered to be "connected" to another element, it can be directly connected to another element or there can be an intermediate element. In contrast, when the element is referred to as "directly" connected to another element, there is no intermediate element.

[0028] Please refer to Figures 1-6 , the ignition device of the utility model a preferred embodiment, for installing on a gas heating water heater, specifically, the ignition device includes ceramic plate 10, install on the ceramic plate 10 first ignition needle 20, second ignition needle 30 and temperature sensing probe 40, first ignition needle 20 is equipped with the first bending end 21 that bends towards the direction of second ignition needle 30, second ignition needle 30 is equipped with the second bending end 31 that bends towards the direction of first ignition needle 20, temperature sensing probe 40 is equipped with third bending end 41 and fourth bending end 42, third bending end 41 and fourth bending end 42 form L-shaped structure.

[0029] The ignition device described above passes through once bending for ignition needle, passes through twice bending for temperature sensing probe 40, to reduce the number of bending nodes, guarantee the machining precision of ignition needle, further guarantee the size of ignition distance is more accurate, also reduce the length of ignition needle and probe, can improve the heat resistance of ignition needle and probe and reduce deformation, further prolong the service life of ignition needle and probe.

[0030] In the embodiment, the bending angle formed by the first bending end 21 and the first ignition needle 20 is 48°-55°, preferably, the bending angle formed by the first bending end 21 and the first ignition needle 20 is 52°. The bending angle formed by the second bending end 31 and the second ignition needle 30 is 48°-55°, preferably, the bending angle formed by the second bending end 31 and the second ignition needle 30 is 52°. Optionally, the bending angle formed by the third bending end 41 and the temperature sensing probe 40 is 45°-55°, preferably, the bending angle formed by the third bending end 41 and the temperature sensing probe 40 is 48°.

[0031] In the embodiment, from Figure 3 The angle formed by the extension line of the first bending end 21 and the extension line of the second bending end 31 is 25°-35°, preferably, the angle formed by the extension line of the first bending end 21 and the extension line of the second bending end 31 is 30°. The distance between the first bending end 21 and the second bending end 31 is 3mm-5mm, preferably, the distance between the first bending end 21 and the second bending end 31 is 4mm. The angle formed by the third bending end 41 and the fourth bending end 42 is 90°.

[0032] In one embodiment, the ceramic plate 10 is provided with a plurality of through holes for the first ignition needle 20, the second ignition needle 30 and the temperature sensing probe 40, a fixing hole 11 and a positioning block 12, each through hole is equidistantly arranged, and a first avoiding position 13, a second avoiding position 14 and a third avoiding position 15 are arranged between each through hole, the first avoiding position 13 is substantially in a concave structure, the second avoiding position 14 is substantially in an arc hole structure, and the third avoiding position 15 is substantially in a C-shaped structure, so as to cooperate with the burner structure of the gas heating water heater to work.

[0033] In one embodiment, the ignition device further comprises a first connecting cable 50, a second connecting cable 51 and a third connecting cable 52, the first connecting cable is used for connecting the first ignition needle 20, the second connecting cable is used for connecting the second ignition needle 30, and the third connecting cable 52 is used for connecting the temperature sensing probe 40.

[0034] In other embodiments, the ignition device further comprises a heat shrink tube sheath 53, the heat shrink tube sheath 53 is sleeved on the first connecting cable 50 and the second connecting cable 51, and the first connecting cable 50 and the second connecting cable 51 are combined together for fixation.

[0035] As shown in Figures 3-6 The ignition device further comprises a wire sheath 54, the wire sheath 54 is provided with a first through hole, a second through hole and a clamping port, the first through hole is used for sleeving the heat shrink tube sheath 53 containing the first connecting cable 50 and the second connecting cable 51, the second through hole is used for sleeving the third connecting cable 52, and the clamping port is used for cooperating with the burner structure of the gas heating water heater to work, so as to fix the connecting cable and better install it on the burner.

[0036] The technical features of the above embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered that it is within the scope of the description.

[0037] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An ignition device for a gas-fired heating hot water boiler, characterized in that, The device includes a ceramic plate, a first ignition needle mounted on the ceramic plate, a second ignition needle, and a temperature sensing probe. The first ignition needle has a first bent end that bends toward the direction of the second ignition needle, the second ignition needle has a second bent end that bends toward the direction of the first ignition needle, and the temperature sensing probe has a third bent end and a fourth bent end, the third bent end and the fourth bent end forming an L-shaped structure.

2. The ignition device for a gas-fired heating hot water boiler according to claim 1, characterized in that, The bending angle formed by the first bent end and the first ignition needle is 48°-55°; the bending angle formed by the second bent end and the second ignition needle is 48°-55°; and the bending angle formed by the third bent end and the temperature sensing probe is 45°-55°.

3. The ignition device for a gas-fired heating hot water boiler according to claim 2, characterized in that, The bending angle formed by the first bent end and the first ignition needle is 52°; the bending angle formed by the second bent end and the second ignition needle is 52°; and the bending angle formed by the third bent end and the temperature sensing probe is 48°.

4. The ignition device for a gas-fired heating hot water boiler according to claim 1, characterized in that, The angle formed by the extension line of the first bend and the extension line of the second bend is 25°-35°.

5. The ignition device for a gas-fired heating hot water boiler according to claim 4, characterized in that, The angle formed by the extension line of the first bend and the extension line of the second bend is 30°.

6. The ignition device for a gas-fired heating hot water boiler according to claim 4, characterized in that, The distance between the first bent end and the second bent end is 3mm-5mm.

7. The ignition device for a gas-fired heating hot water boiler according to claim 1, characterized in that, The ceramic plate is provided with multiple through holes, fixing holes, and positioning blocks for the first ignition needle, the second ignition needle, and the temperature sensing probe to pass through. The through holes are equidistant, and a first clearance position, a second clearance position, and a third clearance position are provided between each through hole. The first clearance position has a concave structure, the second clearance position has an arc-shaped hole structure, and the third clearance position has a C-shaped structure. The fixing holes cooperate with the positioning blocks to perform their function.

8. The ignition device for a gas-fired heating hot water boiler according to claim 1, characterized in that, The ignition device further includes a first connecting cable, a second connecting cable, and a third connecting cable. The first connecting cable is used to connect the first ignition needle, the second connecting cable is used to connect the second ignition needle, and the third connecting cable is used to connect the temperature sensing probe.

9. The ignition device for a gas-fired heating hot water boiler according to claim 8, characterized in that, The ignition device also includes a heat shrink tubing sheath, which is fitted onto the first connecting cable and the second connecting cable.

10. The ignition device for a gas-fired heating hot water boiler according to claim 9, characterized in that, The ignition device also includes a cable sheath, which has a first through hole, a second through hole and a locking interface. The first through hole is used to pass through the heat shrink tubing sheath containing the first connecting cable and the second connecting cable, and the second through hole is used to pass through the third connecting cable.

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