Ignition needle capable of reducing invalid discharge

Abstract

An ignition needle capable of reducing invalid discharge comprises an ignition needle body, a ceramic shell and a copper protective sleeve, the ignition needle body comprises a linear main body part and a discharge body part, and the ceramic shell comprises a discharge cavity provided with a needle hole along the axis, a top opening formed in the top and a radial outer side opening; the copper protective sleeve comprises a regular hexagonal part and an external thread part for a rotating tool to rotate; the linear main body part is arranged in the needle hole, and the discharge body part is arranged in the discharge cavity; the lower part of the ceramic shell is inserted into the copper protective sleeve. The discharge cavity of the ceramic shell is arranged, the discharge body part is arranged in the discharge cavity, and the discharge body part only discharges to the part opposite to the discharge cavity, so that the electric energy loss is reduced, and the success rate and the speed of the ignition needle are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of stove burner's device, especially a kind of ignition needle. BACKGROUND

[0002] The prior art, Chinese patent 202320232595.8, an anti-fracture protective type ceramic ignition needle, relates to the technical field of ignition needle, comprising a protective assembly, the two ends of the protective assembly are provided with a connecting assembly, the connecting assembly includes an upper positioning mechanism provided with one end of the protective assembly, and a lower positioning mechanism is further connected to the end of the protective assembly away from the upper positioning mechanism. This anti-fracture protective type ceramic ignition needle has a novel structure design. During use, the ceramic ignition needle can be disassembled, connected, repaired, and replaced according to the use condition of the protective assembly, connecting assembly, and other components. It can also effectively improve the stability of the connection between the protective assembly, connecting assembly, and other components. At the same time, it can also prevent the ceramic electrode core of the ceramic ignition needle from being damaged or fractured during transportation, installation, debugging, cleaning, and maintenance. The problems are: the ignition needle protrudes from the protective assembly part, is in a straight line shape and is exposed; during ignition, both the inner ring fire cover and the outer ring fire cover are discharged, and the discharge of the outer ring fire cover is invalid discharge, resulting in a low ignition success rate. SUMMARY

[0003] The purpose of the utility model is to provide an ignition needle that reduces invalid discharge, which has the characteristics of reducing discharge loss, high ignition success rate, and rapidness.

[0004] The utility model is implemented as follows: an ignition needle that reduces invalid discharge, which is characterized by comprising an ignition needle body, a ceramic shell, and a copper protective sleeve,

[0005] The ignition needle body includes a straight line-shaped main body part and a discharge body part,

[0006] The ceramic shell includes a needle hole along the axis and a discharge cavity with a radial outer opening at the top;

[0007] The copper protective sleeve includes a regular hexagonal part for rotation of a rotating tool and an external thread part;

[0008] The straight line-shaped main body part is arranged inside the needle hole, and the discharge body part protrudes from the discharge cavity; the lower part of the ceramic shell is inserted into the copper protective sleeve.

[0009] The ignition needle that reduces invalid discharge is characterized in that the ceramic shell includes a head part and a body part, and the diameter of the head part is greater than that of the body part;

[0010] The body part is inserted into the copper protective sleeve.

[0011] The ignition needle for reducing invalid discharge has the special features that the top surface of the ceramic shell and the top of the discharge body part have a height difference.

[0012] The ignition needle for reducing invalid discharge has the special features that the discharge cavity is linear.

[0013] The ignition needle for reducing invalid discharge has the special features that the discharge cavity gradually increases in area from the radial inner side to the radial outer side.

[0014] The ignition needle for reducing invalid discharge has the special features that the discharge cavity includes a circular cavity part and a radial discharge groove, and the outer end of the radial discharge groove is flared.

[0015] The discharge body part is cylindrical, and the discharge body part is embedded with the circular cavity part and opposite to the radial discharge groove.

[0016] The ignition needle for reducing invalid discharge has the special features that the discharge cavity includes a circular cavity part and a radial discharge groove.

[0017] The discharge body part includes a circular head part and a radial needle part, and the radial needle part gradually decreases from the connecting end to the suspended end.

[0018] The circular head part and the radial needle part are embedded with the circular cavity part and the radial discharge groove respectively.

[0019] The ignition needle for reducing invalid discharge has the special features that the discharge cavity includes a circular cavity part and a radial discharge groove. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a top view of the utility model.

[0021] Figure 2 is Figure 1 A-A view of.

[0022] Figure 3 is an exploded view of the utility model.

[0023] Figure 4 is a perspective view of the utility model.

[0024] Figure 5 is a perspective view of the second embodiment of the utility model.

[0025] Figure 6 is a partial sectional view of the second embodiment of the utility model.

[0026] Figure 7is a perspective view of the third embodiment of the utility model.

[0027] Figure 8 is a partial sectional view of the third embodiment of the utility model. DETAILED DESCRIPTION

[0028] Embodiments of the utility model are described below in detail, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model and cannot be understood as a limitation of the utility model.

[0029] In the description of the utility model, it needs to be explained that, unless explicitly defined and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] Embodiment 1

[0031] As shown in Figure 1 , Figure 2 , a kind of ignition needle for reducing invalid discharge, including ignition needle body 1, ceramic shell 2 and copper protective sleeve 3,

[0032] Ignition needle body 1 includes straight line main body part 11 and discharge body part 12,

[0033] Ceramic shell 2 includes the needle hole 21 along the axis and the discharge cavity 22 of the top opening and the radial outer side opening arranged at the top;

[0034] Copper protective sleeve 3 includes the positive hexagonal part 31 for rotating tool rotation and outer thread part 32;

[0035] Straight line main body part 11 is arranged in needle hole 21, discharge body part 12 is stretched out from discharge cavity 22;Ceramic shell 2 lower part is inserted into copper protective sleeve 3 and is fixed.

[0036] As a further improvement of the utility model: the ceramic shell 2 includes head 23 and body 24, the diameter of head 23 is greater than the diameter of body 24;

[0037] Body 24 is inserted into copper protective sleeve 3 and is fixed.

[0038] As a further improvement of the utility model: the top surface of ceramic shell 2 and the top of discharge body part 12 have height difference H. With such structure, invalid discharge is reduced.

[0039] The discharge cavity 22 is linear; the discharge body part 12 is linear.

[0040] The utility model can also be realized as follows: the discharge cavity 22 gradually increases in area from the radial inner side to the radial outer side. With such a structure, the discharge area with the central fire cover of the combustor is enlarged.

[0041] Embodiment 2

[0042] As shown in Figure 5 , Figure 6 The discharge cavity 22 includes a circular cavity part 221 and a radial discharge groove 222, and the outer end of the radial discharge groove 222 is flared.

[0043] The discharge body part 12 is cylindrical, and the discharge body part 12 is embedded with the circular cavity part 221 and opposite to the radial discharge groove 222.

[0044] Embodiment 3

[0045] As shown in Figure 7 , Figure 8 The discharge cavity 22 includes a circular cavity part 221 and a radial discharge groove 222.

[0046] The discharge body part 12 includes a circular head part 121 and a radial needle part 122, and the radial needle part 122 gradually decreases from the connecting end to the suspended end.

[0047] The circular head part 121 and the radial needle part 122 are respectively embedded with the circular cavity part 221 and the radial discharge groove 222.

[0048] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. An ignition needle that reduces ineffective discharges, characterized by: The ignition needle body, the ceramic shell and the copper protective sleeve, The ignition needle body includes a straight body part and a discharge body part, The ceramic shell includes a discharge cavity with a needle hole along the axis and a top opening and a radial outside opening on the top part; The copper protective sleeve includes a regular hexagonal part for the rotation of the rotary tool and an outer threaded part; The straight body part is arranged in the needle hole and the discharge body part is arranged in the discharge cavity; the lower part of the ceramic shell is inserted into the copper protective sleeve.

2. The reduced quenching ignition tip of claim 1 wherein: The ceramic shell includes a head part and a body part, the diameter of the head part is larger than that of the body part; The body part is inserted into the copper protective sleeve.

3. The reduced quenching ignition tip of claim 1 wherein: The top surface of the ceramic shell and the top part of the discharge body part have a height difference.

4. A reduced deadband ignition tip as defined in claim 1, 2 or 3 wherein: The discharge body part is straight and extends out of the discharge cavity.

5. An ignition tip for reducing wasteful discharges as defined in claim 4, wherein: The discharge cavity is straight.

6. An ignition tip for reducing wasteful discharges as defined in claim 5, wherein: The area of the discharge cavity gradually increases from the radial inside to the radial outside.

7. An ignition tip for reducing wasteful discharges as defined in claim 1, 2 or 3 wherein: The discharge cavity includes a circular cavity part and a radial discharge groove, the outside end of the radial discharge groove is flared; The discharge body part is cylindrical, the discharge body part is embedded in the circular cavity part and opposite to the radial discharge groove.

8. An ignition tip for reducing wasteful discharges according to claim 1, 2 or 3 wherein: The discharge cavity includes a circular cavity part and a radial discharge groove; The discharge body part includes a circular head part and a radial needle part, the radial needle part gradually decreases from the connecting end to the suspended end; The circular head part and the radial needle part are respectively embedded in the circular cavity part and the radial discharge groove.

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