Ignition electric nozzle of igniter

Abstract

The utility model relates to an ignition electric nozzle of an igniter. The ignition electric nozzle comprises a shell, an insulating part and a central electrode, two supporting rings distributed in parallel are arranged on the inner edge of the shell, the insulating part is located on the inner edge of the supporting rings, the central electrode is located on the inner edge of the insulating part, and the space between the supporting rings and the inner edge of the shell and the space between the supporting rings and the outer side of the insulating part are flow cavities; a connecting groove is formed in the surface of the inner edge of the insulating part, a heat dissipation mechanism is arranged in the connecting groove, and the heat dissipation mechanism is arranged on the outer side of the central electrode. According to the ignition electric nozzle, heat outside the central electrode is guided into the guide hole through the cooling fins and reaches the flowing cavity to achieve heat exchange through flowing gas, so that the cooling effect of the central electrode is better, the outer side of the central electrode does not make contact with air under the cooperation of the sealing piece and the connecting groove, and the insulation effect of the central electrode is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of ignition nozzles, in particular to an ignition nozzle of an igniter. Background Art

[0002] The ignition nozzle of the igniter is an electric spark ignition device that uses high voltage to break through the gas insulation layer between electrodes to generate the arc required for ignition;

[0003] Chinese patent CN202221125029.9 is an ignition nozzle of an igniter, which allows oil and gas to enter from the air inlet and be discharged from the air outlet, ensuring that the left end of the central electrode is in full contact with the oil and gas, so that the oil and gas are fully burned, reducing the accumulation of carbon deposits at the ignition site, which is beneficial to maintaining the temperature of the nozzle stable when the engine is working, and greatly extending the service life and reliability of the nozzle;

[0004] The above patent controls the temperature of the nozzle by gas. However, the gas ceramic part dissipates heat. First, the heat flows out slowly from the micropores on the surface of the ceramic part, which is inefficient. In addition, dust easily falls on the surface of the micropores, causing blockage and affecting the heat dissipation effect.

[0005] In view of this, an ignition nozzle of an igniter is proposed. Utility Model Content

[0006] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0007] In view of the following technical problems in the prior art: the prior art controls the temperature of the nozzle by gas, but the gas ceramic part dissipates heat. First, the heat slowly flows out from the micropores on the surface of the ceramic part, which is inefficient, and dust easily falls on the surface of the micropores to cause blockage, affecting the heat dissipation effect.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: an ignition nozzle of an igniter, comprising a shell, an insulating member and a center electrode; two support rings distributed in parallel are arranged on the inner edge of the shell, the insulating member is located on the inner edge of the support ring, the center electrode is located on the inner edge of the insulating member, and the space between the support ring and the inner edge of the shell and the outer side of the insulating member is a flow cavity; a connecting groove is opened on the inner edge surface of the insulating member, a heat dissipation mechanism is arranged in the connecting groove, and the heat dissipation mechanism is arranged on the outer side of the center electrode.

[0009] As a preferred technical solution for an ignition nozzle of an igniter, a sealing ring is provided on the inner edge of one end of the shell away from the support ring, and the sealing ring enables the whole to have a sealing effect during installation.

[0010] As a preferred technical solution for an ignition nozzle of an igniter, an inlet is provided on the upper surface of the shell, and the inlet is communicated with the flow chamber. An outlet is provided on the surface of the support ring near the shell opening, and the outlet is communicated with the flow chamber, thereby ensuring that the gas inside the flow chamber is in a flowing state.

[0011] As an optimal technical solution for an ignition nozzle of an igniter, the heat dissipation mechanism includes a heat sink and a seal. The heat sink is slidably arranged in an insulating member. The heat sink is distributed at equal angles on the outside of the center electrode, which can evenly dissipate heat from the center electrode.

[0012] As a preferred technical solution for an ignition nozzle of an igniter, the seal is arranged on the side of the heat sink, the seal and the heat sink form a "cross" shape, and the cross-sectional shape of the connecting groove is "cross" shaped. Through the configuration of the seal, the flowing gas is not easy to reach the outer position of the center electrode, and under the special shape, the center electrode can be installed more accurately in advance.

[0013] As a preferred technical solution for an ignition nozzle of an igniter, a guide hole is provided on the surface of the insulating member, the guide hole is communicated with the connecting groove, and the guide hole is communicated with the flow cavity. Through the configuration of the guide hole, the heat on the heat sink can be exchanged and discharged through the gas flowing in the flow cavity.

[0014] Beneficial effects of the present invention: The ignition nozzle guides the heat outside the center electrode into the guide hole through the heat sink, and reaches the flow cavity to realize heat exchange by the flowing gas, thereby making the heat dissipation effect of the center electrode better. With the cooperation of the seal and the connecting groove, the outer side of the center electrode is not in contact with the air, thereby ensuring its insulation effect.

[0015] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the heat sink and the seal of the present invention.

[0019] Reference numerals:

[0020] 100, shell; 101, support ring; 102, flow chamber; 103, inlet; 104, outlet; 105, sealing ring; 200, insulating member; 201, connecting groove; 202, heat sink; 203, sealing member; 204, guide hole; 300, center electrode. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] Example

[0026] Reference Figure 1, is an embodiment of the present invention, which provides an ignition nozzle of an igniter, including a shell 100, an insulating member 200 and a center electrode 300; the inner edge of the shell 100 is provided with two support rings 101 distributed in parallel, the insulating member 200 is located at the inner edge of the support ring 101, and the center electrode 300 is located at the inner edge of the insulating member 200, and the space between the support ring 101 and the inner edge of the shell 100 and the outer side of the insulating member 200 is a flow chamber 102; a sealing ring 105 is provided at the inner edge of one end of the shell 100 away from the support ring 101, and the sealing ring 105 makes the whole have a sealing effect during installation; an inlet 103 is provided on the upper surface of the shell 100, and the inlet 103 is communicated with the flow chamber 102, and an outlet 104 is provided on the surface of the support ring 101 close to the opening of the shell 100, and the outlet 104 is communicated with the flow chamber 102, so as to ensure that the gas inside the flow chamber 102 is in a flowing manner;

[0027] Reference Figure 1 and 2 The inner edge surface of the insulating member 200 is provided with a connecting groove 201, and a heat dissipation mechanism is arranged in the connecting groove 201, and the heat dissipation mechanism is arranged on the outer side of the center electrode 300; the heat dissipation mechanism includes a heat sink 202 and a sealing member 203, the heat sink 202 is slidably arranged in the insulating member 200, and the heat sink 202 is distributed on the outer side of the center electrode 300 at equal angles, which can evenly dissipate heat for the center electrode 300, and an insulating gasket is arranged on the inner edge of the heat sink 202 to produce an insulating effect with the center electrode 300. In this step, the outer side of the heat sink 202 can also be coated with an insulating coating in advance; the sealing member 203 is arranged on the heat sink 2 02, the sealing member 203 and the heat sink 202 form a "cross" shape, and the cross-sectional shape of the connecting groove 201 is in the shape of a "cross". Through the configuration of the sealing member 203, the flowing gas is not easy to reach the outer position of the center electrode 300, and under the special shape, the center electrode 300 is more accurately installed in advance; a guide hole 204 is opened on the surface of the insulating member 200, and the guide hole 204 is communicated with the connecting groove 201, and the guide hole 204 is communicated with the flow chamber 102. Through the configuration of the guide hole 204, the heat on the heat sink 202 can be exchanged and discharged through the gas flowing in the flow chamber 102.

[0028] Through this implementation, it can be achieved that: the heat outside the center electrode 300 is introduced into the guide hole 204 through the heat sink 202, and reaches the flow cavity 102 to realize heat exchange by the flowing gas. With the cooperation of the seal 203 and the connecting groove 201, the outer side of the center electrode 300 is not in contact with the air, thereby ensuring its insulation effect.

[0029] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, without undue experimentation, the development effort will be a routine task of design, fabrication, and production.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An ignition nozzle of an igniter, characterized in that: It comprises a shell (100), an insulating member (200) and a center electrode (300); The inner edge of the shell (100) is provided with two support rings (101) distributed in parallel, the insulating member (200) is located at the inner edge of the support ring (101), the central electrode (300) is located at the inner edge of the insulating member (200), and the space between the support ring (101) and the inner edge of the shell (100) and the outer side of the insulating member (200) is a flow cavity (102); The inner edge surface of the insulating member (200) is provided with a connection groove (201), a heat dissipation mechanism is arranged in the connection groove (201), and the heat dissipation mechanism is arranged on the outer side of the center electrode (300).

2. The ignition nozzle of the lighter according to claim 1, characterized in that: A sealing ring (105) is provided on the inner edge of one end of the housing (100) away from the support ring (101).

3. The ignition nozzle of the lighter according to claim 1, characterized in that: An inlet (103) is provided on the upper surface of the shell (100), and the inlet (103) is communicated with the flow chamber (102); an outlet (104) is provided on the surface of the support ring (101) near the opening of the shell (100), and the outlet (104) is communicated with the flow chamber (102).

4. The ignition nozzle of the lighter according to claim 1, characterized in that: The heat dissipation mechanism comprises a heat sink (202) and a sealing member (203); the heat sink (202) is slidably arranged in the insulating member (200); the heat sink (202) is distributed at equal angles outside the center electrode (300); and an insulating gasket is provided on the inner edge of the heat sink (202) to produce an insulating effect with the center electrode (300).

5. The ignition nozzle of the lighter according to claim 4, characterized in that: The sealing member (203) is arranged on the side of the heat sink (202), the sealing member (203) and the heat sink (202) form a "cross" shape, and the cross-sectional shape of the connecting groove (201) is in the shape of a "cross".

6. The ignition nozzle of the lighter according to claim 1, characterized in that: A guide hole (204) is provided on the surface of the insulating member (200), the guide hole (204) is communicated with the connecting groove (201), and the guide hole (204) is communicated with the flow chamber (102).

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