Double-layer insulating ceramic ignition electrode structure
By designing a double-layer insulated ceramic ignition electrode structure and using components such as a limiting ball, a push ring, and a return spring, the problem of inconvenient installation of ceramic ignition needles was solved, enabling convenient installation and disassembly, and improving safety and sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG BOCHUANG FINE CERAMIC CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-05-08
AI Technical Summary
The existing ceramic ignition needles are inconvenient to install and remove, resulting in inconvenience in use.
A double-layer insulating ceramic ignition electrode structure was designed, including a first insulating ceramic mechanism and a second insulating ceramic mechanism. It adopts components such as a limiting ball, a pushing ring, and a return spring. The gripping ring and the return spring work together to achieve convenient installation and disassembly.
This technology enables convenient installation and removal of ceramic igniters, improves safety and sealing, and ensures the stability and reliability of the igniters.
Smart Images

Figure CN224214288U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ceramic igniter technology, and in particular to a double-layer insulated ceramic ignition electrode structure. Background Technology
[0002] Ceramic ignition needles and electrodes are important components commonly used in internal combustion engine ignition systems. Their main function is to generate a spark in the engine's combustion chamber, igniting the air-fuel mixture and enabling the engine to operate normally. This article will detail the structure, working principle, and applications of ceramic ignition needles and electrodes.
[0003] A ceramic ignition electrode typically consists of two parts: a needle-shaped electrode and a ceramic insulator. The needle-shaped electrode is usually made of platinum alloy because platinum alloys have high toughness and corrosion resistance. The ceramic insulator is made of ceramic materials because ceramics have good insulation and heat resistance. This structural design ensures that the ignition electrode can operate normally under high temperature and high pressure environments.
[0004] The working principle of a ceramic ignition needle electrode is to ignite the fuel in the combustion chamber through an electric arc discharge. When the ignition system is powered on, a high-voltage current is transmitted to the ignition electrode through wires. At this time, under the action of the high-voltage current, the air near the ignition electrode is ionized, forming an electric arc. The high temperature and high energy generated by the electric arc ignite the fuel in the combustion chamber, causing detonation, thus enabling the engine to operate normally.
[0005] Ceramic ignition needles / electrodes play a crucial role in internal combustion engines. They not only ignite fuel quickly and stably but also provide reliable ignition capability under various operating conditions. Due to the special materials and structure of ceramic ignition needles / electrodes, they can withstand high-temperature and high-pressure environments, exhibiting a long service life and good wear resistance. Therefore, they are widely used in internal combustion engine equipment such as automobiles, motorcycles, and generators.
[0006] Existing ceramic ignition needles generally suffer from problems such as inconvenience in installation, making it difficult to disassemble and install them quickly and effectively, resulting in significant inconvenience in their use. Utility Model Content
[0007] To address the shortcomings of existing technologies, this invention provides a double-layer insulating ceramic ignition electrode structure.
[0008] The purpose of this utility model is achieved as follows: a double-layer insulating ceramic ignition electrode structure, including a ceramic igniter, wherein a first insulating ceramic mechanism is fixedly provided at one end of the ceramic igniter, and a second insulating ceramic mechanism is fixedly provided at the other end of the ceramic igniter.
[0009] The first insulating ceramic mechanism includes a ceramic housing fixed to the ceramic igniter. Several limiting balls are movably provided at the upper end of the ceramic housing. A pushing ring is movably installed inside the upper end of the ceramic housing. A gripping ring is fixedly provided at one end of the pushing ring. A return spring is fixedly connected to one side of the gripping ring. A positioning ring is fixedly provided at the other end of the return spring.
[0010] Furthermore, one end of the ceramic igniter is fixedly provided with an electrode post, and there are two electrode posts, namely a positive electrode post and a negative electrode post, with the top ends of the two electrode posts bent and close to each other.
[0011] Furthermore, the ceramic igniter has two engaging grooves at one end near the electrode post, and two engaging rings are fixedly provided on the inner wall of the ceramic housing, with the two engaging rings engaging and connected inside the two engaging grooves.
[0012] Furthermore, a limiting ring is fixedly provided at the tail end of the ceramic shell, and a sealing ring is fixedly installed at the bending part of the limiting ring and the ceramic shell.
[0013] Furthermore, the positioning ring is fixedly installed in the middle of the ceramic igniter, and the return spring is sleeved on the outside of the ceramic igniter.
[0014] Furthermore, a rubber sleeve is fitted onto the outer side of the return spring, and the two ends of the rubber sleeve are respectively fixedly connected to one side of the positioning ring and one side of the gripping ring.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] In use, this utility model is installed through a first insulating ceramic mechanism to provide insulation protection for the electrode post, and a second insulating ceramic mechanism is provided at the tail end of the ceramic igniter to provide insulation protection for the wiring terminal, thus maintaining the safety of the ceramic igniter in use.
[0017] The first insulating ceramic mechanism is provided with several limiting balls and a return spring to push the pushing ring, so that the pushing ring is inside the ceramic shell under the action of the return spring, thereby pushing the limiting balls so that the limiting balls can protrude, which facilitates locking the ceramic igniter after installation. When disassembling, the pushing ring is pulled out by the gripping ring, which releases the pushing of the limiting balls, making it easy to remove the ceramic igniter. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of this utility model.
[0020] Figure 2 This is a cross-sectional view of the present invention.
[0021] Figure 3 This is a side view schematic diagram of the first insulating ceramic mechanism of this utility model.
[0022] Figure 4 This is a bottom view of the first insulating ceramic mechanism of this utility model.
[0023] Figure 5 This is a partial structural schematic diagram of the present invention.
[0024] In the diagram: 1. Ceramic igniter; 2. First insulating ceramic mechanism; 201. Ceramic housing; 202. Limiting ring; 203. Limiting ball; 204. Grip ring; 205. Pushing ring; 206. Return spring; 207. Positioning ring; 208. Engaging ring; 209. Sealing ring; 210. Rubber sleeve; 3. Second insulating ceramic mechanism; 4. Electrode post; 5. Engaging groove. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] like Figure 1-5 The double-layer insulating ceramic ignition electrode structure shown includes a ceramic igniter 1, one end of which is fixedly provided with a first insulating ceramic mechanism 2, and the other end of which is fixedly provided with a second insulating ceramic mechanism 3.
[0027] The first insulating ceramic mechanism 2 includes a ceramic housing 201 fixed on the ceramic igniter 1. Several limiting balls 203 are movably provided at the upper end of the ceramic housing 201. A pushing ring 205 is movably installed inside the upper end of the ceramic housing 201. A holding ring 204 is fixedly provided at one end of the pushing ring 205. A return spring 206 is fixedly connected to one side of the holding ring 204. A positioning ring 207 is fixedly provided at the other end of the return spring 206.
[0028] In this embodiment, preferably, one end of the ceramic igniter 1 is fixedly provided with an electrode post 4, and there are two electrode posts 4, namely a positive electrode post and a negative electrode post, and the top ends of the two electrode posts 4 are bent close to each other.
[0029] It should be noted that electrode post 4 ignites the fuel in the combustion chamber through electric arc discharge. When the power of the ignition system is turned on, high voltage current is transmitted to electrode post 4 through wires. At this time, under the action of high voltage current, the air near electrode post 4 is ionized to form an electric arc. The high temperature and high energy generated by the electric arc ignite the fuel in the combustion chamber, causing detonation, thus enabling the engine to work normally.
[0030] In this embodiment, preferably, the ceramic igniter 1 has two engaging grooves 5 at one end near the electrode post 4, and two engaging rings 208 are fixedly provided on the inner wall of the ceramic housing 201, and the two engaging rings 208 are engaged and connected inside the two engaging grooves 5.
[0031] It should be noted that the locking groove 5 is designed to install the ceramic housing 201. That is, the locking ring 208 on the inner wall of the ceramic housing 201 is adapted to the locking groove 5 to fix the ceramic housing 201 in place.
[0032] In this embodiment, preferably, a limiting ring 202 is fixedly provided at the tail end of the ceramic shell 201, and a sealing ring 209 is fixedly installed at the bending part of the limiting ring 202 and the ceramic shell 201.
[0033] It should be noted that the setting of the limiting ring 202 can limit the depth of the ceramic igniter 1, preventing the ceramic igniter 1 from being inserted too deeply or too shallowly, which would cause the ceramic igniter 1 to fail to perform effective ignition. In addition, the setting of the sealing ring 209 can improve the sealing between the ceramic igniter 1 and the installation position, preventing air leakage and ignition failure.
[0034] In this embodiment, preferably, the positioning ring 207 is fixedly installed in the middle of the ceramic igniter 1, and the return spring 206 is sleeved on the outside of the ceramic igniter 1.
[0035] It should be noted that the positioning ring 207 is designed for fixed installation, which facilitates the support and installation of the return spring 206 and maintains the elasticity of the return spring 206.
[0036] In this embodiment, preferably, a rubber sleeve 210 is sleeved on the outer side of the return spring 206, and the two ends of the rubber sleeve 210 are respectively fixedly connected to one side of the positioning ring 207 and one side of the gripping ring 204.
[0037] It should be noted that the rubber sleeve 210 is designed to protect the return spring 206 and prevent it from being damaged.
[0038] The specific operational procedures for this application are as follows:
[0039] In use, first, the high-voltage current cable is passed through the end through hole of the second insulating ceramic mechanism 3 and electrically connected to the tail end of the ceramic igniter 1. Then, by pulling the grip ring 204, the grip ring 204 can squeeze the return spring 206, thereby causing the push ring 205 inside the ceramic housing 201 to retract. At this time, the limit ball 203 falls down, allowing the ceramic igniter 1 to be inserted and installed. During insertion and installation, the limit ring 202 restricts the insertion position, that is, the limit ring 202 fits against the end face of the installation equipment, and the sealing ring 209 improves the sealing performance. After installation, the grip ring 204 is released. At this time, the push of the return spring 206 pushes the push ring 205, allowing the push ring 205 to push the limit ball 203, so that the limit ball 203 can lock and maintain the stability of the ceramic igniter 1 and make the ceramic igniter 1 easy to disassemble and install.
[0040] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A double-layer insulating ceramic ignition electrode structure, characterized in that: It includes a ceramic igniter (1), one end of which is fixedly provided with a first insulating ceramic mechanism (2), and the other end of which is fixedly provided with a second insulating ceramic mechanism (3). The first insulating ceramic mechanism (2) includes a ceramic housing (201) fixed on the ceramic igniter (1). Several limiting balls (203) are movably provided on the upper end of the ceramic housing (201). A pushing ring (205) is movably installed inside the upper end of the ceramic housing (201). A gripping ring (204) is fixedly provided on one end of the pushing ring (205). A return spring (206) is fixedly connected to one side of the gripping ring (204). A positioning ring (207) is fixedly provided on the other end of the return spring (206).
2. The double-layer insulating ceramic ignition electrode structure according to claim 1, characterized in that: One end of the ceramic igniter (1) is fixedly provided with an electrode post (4). There are two electrode posts (4), namely a positive electrode post and a negative electrode post. The top ends of the two electrode posts (4) are bent close to each other.
3. The double-layer insulating ceramic ignition electrode structure according to claim 2, characterized in that: The ceramic igniter (1) has two engaging grooves (5) at one end near the electrode post (4), and two engaging rings (208) are fixed on the inner wall of the ceramic housing (201). The two engaging rings (208) are engaged and connected inside the two engaging grooves (5).
4. The double-layer insulating ceramic ignition electrode structure according to claim 1, characterized in that: A limiting ring (202) is fixedly provided at the tail end of the ceramic shell (201), and a sealing ring (209) is fixedly installed at the bending part of the limiting ring (202) and the ceramic shell (201).
5. The double-layer insulating ceramic ignition electrode structure according to claim 1, characterized in that: The positioning ring (207) is fixedly installed in the middle of the ceramic igniter (1), and the reset spring (206) is sleeved on the outside of the ceramic igniter (1).
6. The double-layer insulating ceramic ignition electrode structure according to claim 5, characterized in that: The return spring (206) is fitted with a rubber sleeve (210) on its outer side. The two ends of the rubber sleeve (210) are respectively fixedly connected to one side of the positioning ring (207) and one side of the gripping ring (204).