Bipolar automobile spark plug

Abstract

The utility model relates to a bipolar automobile spark plug, which comprises a spark plug body, the interior of the spark plug body comprises a wiring screw located in the spark plug body, the top of the wiring screw is fixedly provided with a wiring nut, the bottom of the wiring nut is connected with an insulator, the bottom of the insulator is provided with a hexagonal screw, and the hexagonal screw is connected with the wiring screw. The bottom of the hexagonal screw is connected with a fixing thread, and the bottom of the fixing thread is connected with a side electrode. According to the bipolar automobile spark plug, the wiring screw rod, the wiring nut, the insulator, the fixing threads, the side electrode and the like are matched, the wiring nut is used for connecting the ignition coil and the spark plug, and high voltage is led into the spark plug; the insulator isolates the central electrode from the side electrode, it is guaranteed that electric arc is only formed between the two electrodes by current, the insulator is made of aluminum alloy ceramic and has insulativity, heat resistance and heat conductivity, and the insulator is designed in a groove-shaped corrugated mode, has a long insulation distance and can prevent splashing.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile spark plugs, in particular to a bipolar automobile spark plug. Background Art

[0002] Automobile spark plugs are commonly known as spark nozzles. Their function is to discharge the pulsed high voltage electricity sent by the high-voltage wire (spark nozzle wire), break through the air between the two electrodes of the spark plug, and generate electric sparks to ignite the mixed gas in the cylinder. This product is divided into standard spark plugs, insulator protruding spark plugs, etc.

[0003] The current dual-motor automobile spark plug has insufficient durability of electrode materials. Working in a high temperature and high pressure environment for a long time may cause electrode ablation, affecting the ignition performance of the spark plug. Therefore, a bipolar automobile spark plug is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a bipolar automobile spark plug, which has the advantages of improving the ignition performance of the spark plug, etc., and solves the problem that the current dual-motor automobile spark plug has insufficient durability of the electrode material, and may cause electrode ablation when working in a high temperature and high pressure environment for a long time, thereby affecting the ignition performance of the spark plug.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a bipolar automotive spark plug, comprising a spark plug body, the interior of the spark plug body comprising a terminal screw located inside the spark plug body, a terminal nut fixedly mounted on the top of the terminal screw, an insulator connected to the bottom of the terminal nut, a hexagonal spiral mounted on the bottom of the insulator, a fixed thread connected to the bottom of the hexagonal spiral, a side electrode connected to the bottom of the fixed thread, a center electrode connected at the center position of the bottom of the fixed thread, a spark plug gap set between the center electrode and the side electrode, and a sealing gasket mounted between the hexagonal spiral and the fixed thread.

[0006] Preferably, the central electrode and the side electrodes are both made of double platinum material.

[0007] Preferably, the insulator is made of aluminum alloy ceramic and has a groove-shaped corrugated design.

[0008] Preferably, the spark plug gap has a gap length of about 1.1 mm.

[0009] Preferably, the side electrode is designed to be curved, and the tip of the side electrode is designed to be conical.

[0010] Preferably, the wiring screw is made of metal.

[0011] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0012] 1. The bipolar automotive spark plug is designed with a connection screw, a connection nut, an insulator, a hexagonal spiral, a fixed thread and a side electrode. The connection nut connects the ignition coil and the spark plug to introduce high voltage electricity into the spark plug. The insulator isolates the center electrode and the side electrode to ensure that the current forms an arc only between the two electrodes. The insulator is made of aluminum alloy ceramic and has insulation, heat resistance and thermal conductivity. The insulator is designed with a groove-shaped corrugation and has a long insulation distance to prevent splashing. The center electrode is located in the center of the spark plug and generates electric sparks with the side electrode to ignite the spark. The mixed gas in the combustion cylinder; the side electrode cooperates with the center electrode to generate electric sparks, and the gap between the two has an important influence on the ignition performance; by setting the center electrode and the side electrode to generate sparks, the car starts to rotate the engine and drive the car. Since there are two electrodes, even if one of them is burned, the other can still keep working normally, thereby extending the service life of the spark plug. This design avoids the flameout phenomenon caused by electrode wear of single-electrode spark plugs, ensuring the continuous and stable operation of the engine. The dual-electrode design can achieve more stable combustion and reduce the blow-out effect of turbulence in the cylinder.

[0013] 2. This bipolar automotive spark plug improves the durability and stability of the spark plug by setting the center electrode and side electrodes to be made of double platinum material. It solves the problem that due to the insufficient durability of the electrode material, long-term operation in a high-temperature and high-pressure environment may cause electrode ablation, affecting the ignition performance of the spark plug. The spark plug should be inspected and replaced regularly according to its usage to avoid engine failure caused by spark plug problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model;

[0016] Figure 3 This is a cross-sectional view of the structure of the utility model.

[0017] In the figure: 1. Spark plug body; 101. Terminal screw; 102. Terminal nut; 103. Insulator; 104. Hexagonal screw; 105. Fixing thread; 106. Side electrode; 107. Center electrode; 108. Spark plug gap; 109. Sealing washer. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-3 In this embodiment, a bipolar automotive spark plug includes a spark plug body 1. The interior of the spark plug body 1 includes a terminal screw 101 located inside the spark plug body 1. A terminal nut 102 is fixedly installed on the top of the terminal screw 101. An insulator 103 is connected to the bottom of the terminal nut 102. A hexagonal screw 104 is installed on the bottom of the insulator 103. A fixing thread 105 is connected to the bottom of the hexagonal screw 104. A side electrode 106 is connected to the bottom of the fixing thread 105. A center electrode 107 is connected to the center position of the bottom of the fixing thread 105. A spark plug gap 108 is set between the center electrode 107 and the side electrode 106. A sealing gasket 109 is installed between the hexagonal screw 104 and the fixing thread 105.

[0020] It should be noted that the automobile spark plug body 1 is commonly known as a spark nozzle. Its function is to discharge the pulsed high voltage electricity sent from the high-voltage wire nozzle line, break through the air between the two electrodes of the spark plug, generate electric sparks to ignite the mixed gas in the cylinder; and the spark plug body 1 includes a terminal screw 101, a terminal nut 102, an insulator 103, a hexagonal screw 104, a fixing thread 105, a side electrode 106, a center electrode 107, a spark plug gap 108 and a sealing gasket 109.

[0021] The bipolar automotive spark plug is directly connected to the ignition coil through its terminal screw 101. This connection allows the ignition coil to transmit high voltage electricity between the spark plug's center electrode 107 and side electrode 106, generating the necessary electric spark to ignite the compressed combustible mixture in the cylinder; the main function of the spark plug body 1 is to introduce high voltage electricity into the combustion chamber and instantly ignite the compressed combustible mixture through the electric spark between the electrodes. This process is crucial to the operation of the ignition engine because only when the mixture is successfully ignited can the engine perform work and provide power to the vehicle.

[0022] The center electrode 107 and the side electrode 106 are both made of double platinum material. The design of the double platinum spark plug improves the overall durability and ignition performance of the spark plug because platinum has a high melting point and good corrosion resistance.

[0023] The insulator 103 is made of aluminum alloy ceramic and has a groove-shaped corrugated design. The groove-shaped corrugated design may be to increase the surface heat dissipation area of the insulator 103, thereby improving its heat dissipation efficiency. This design helps to maintain the temperature of the spark plug stable during long-term operation and avoid performance degradation or damage caused by overheating.

[0024] The side electrode 106 is designed in a curved shape. The curved side electrode 106 can better adapt to the high temperature and high pressure environment inside the engine and reduce deformation or damage caused by thermal expansion. The tip of the side electrode 106 is designed in a tapered shape. The design of the tapered tip helps to concentrate the arc, making it easier for the electric spark to penetrate the mixed gas in the cylinder, thereby improving ignition efficiency. This design is particularly important in modern high-performance engines because it helps to ensure stable ignition under various operating conditions.

[0025] In summary, the bipolar automotive spark plug is provided with a connection screw 101, a connection nut 102, an insulator 103, a hexagonal spiral 104, a fixing thread 105 and a side electrode 106. The connection nut 102 is used to connect the ignition coil and the spark plug, and introduce high voltage electricity into the spark plug; the insulator 103 isolates the center electrode 107 and the side electrode 106, ensuring that the current forms an arc only between the two electrodes. The insulator 103 is made of aluminum alloy ceramic, which has insulation, heat resistance and thermal conductivity, and the insulator 103 is designed in a groove-shaped corrugation, with a long insulation distance to prevent splashing; the center electrode 107 is located in the center of the spark plug and is in contact with the side electrode 106. Electric sparks are generated between the side electrodes 106 to ignite the mixed gas in the cylinder; the side electrodes 106 cooperate with the center electrode 107 to generate electric sparks, and the gap between the two has an important influence on the ignition performance; by setting the center electrode 107 and the side electrode 106 to generate sparks, the car starts to rotate the engine and drive the car. Since there are two electrodes, even if one of them is burned, the other can still maintain normal operation, thereby extending the service life of the spark plug. This design avoids the flameout phenomenon caused by electrode wear of the single-electrode spark plug, ensuring the continuous and stable operation of the engine. The dual-electrode design can achieve more stable combustion and reduce the blow-out effect of turbulence in the cylinder.

[0026] Furthermore, by making both the center electrode 107 and the side electrode 106 of double platinum material, the durability and stability of the spark plug can be improved, thereby solving the problem that the electrode may be ablated due to long-term operation in a high-temperature and high-pressure environment due to insufficient durability of the electrode material, thereby affecting the ignition performance of the spark plug. In addition, the spark plug should be inspected and replaced regularly according to its usage to avoid engine failure caused by spark plug problems.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bipolar automotive spark plug, comprising a spark plug body (1), characterized in that: The interior of the spark plug body (1) includes a wiring screw (101) located inside the spark plug body (1), a wiring nut (102) is fixedly installed on the top of the wiring screw (101), an insulator (103) is connected to the bottom of the wiring nut (102), a hexagonal screw (104) is installed on the bottom of the insulator (103), a fixing thread (105) is connected to the bottom of the hexagonal screw (104), a side electrode (106) is connected to the bottom of the fixing thread (105), a center electrode (107) is connected at the center position of the bottom of the fixing thread (105), a spark plug gap (108) is set between the center electrode (107) and the side electrode (106), and a sealing gasket (109) is installed between the hexagonal screw (104) and the fixing thread (105).

2. A bipolar automotive spark plug according to claim 1, characterized in that: The central electrode (107) and the side electrode (106) are both made of double platinum material.

3. A bipolar automotive spark plug according to claim 1, characterized in that: The insulator (103) is made of aluminum alloy ceramics, and the insulator (103) is designed in a groove-shaped corrugation.

4. A bipolar automotive spark plug according to claim 1, characterized in that: The spark plug gap (108) has a gap length of approximately 1.1 mm.

5. A bipolar automotive spark plug according to claim 1, characterized in that: The side electrode (106) is designed in a curved shape, and the tip of the side electrode (106) is designed in a conical shape.

6. A bipolar automotive spark plug according to claim 1, characterized in that: The terminal screw (101) is made of metal.

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