An ignition coil with a sealed structure

Abstract

This utility model relates to the field of ignition coil technology, specifically an ignition coil with a sealing structure. It includes a mounting base, a high-voltage terminal mounted at the bottom of the mounting base, and a spark plug mounted at the bottom of the high-voltage terminal. A sealing post is mounted inside the bottom of the mounting base. An installation groove is formed inside the mounting base, and an elastic sealing component is installed on the inner wall of the installation groove. An installation sleeve is provided inside the mounting base, and a coil mechanism is mounted at the top of the installation sleeve. This utility model firstly uses an internal and external threaded connection. When the sealing post is threadedly installed with the installation sleeve, the design of the first and second sealing ring components, along with the deformation caused by the elastic pad and the first spring body under compression, results in a better sealing effect when the first and second sealing ring components cooperate and compress.

Description

Technical Field

[0001] This utility model relates to the field of ignition coil technology, and in particular to an ignition coil with a sealed structure. Background Technology

[0002] The primary function of an automotive ignition coil is to convert the low voltage (typically 12 volts) supplied by the vehicle's battery into a high voltage (typically tens of thousands of volts) to generate a spark that ignites the fuel mixture in the engine cylinders. The ignition coil operates on the principle of electromagnetic induction, converting low-voltage electricity into high-voltage electricity to ensure normal engine operation and smooth combustion. An automotive ignition coil mainly consists of an ignition coil and a switching device.

[0003] The ignition coil seal is a key protective component in the ignition system. Its main function is to prevent engine oil, dust, moisture, etc. from entering the coil, ensuring the stable transmission of high-voltage current and the normal operation of spark plugs. Currently, automotive ignition coil seals are all made of rubber rings. However, during installation and removal, the sealing effect of the rubber rings can easily deteriorate. Therefore, an ignition coil with a sealing structure is needed to meet people's usage needs. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Given that current automotive ignition coils, as described above or in existing technologies, rely on rubber rings for sealing, the sealing effect of these rings can easily deteriorate during installation and removal. Therefore, an ignition coil with a sealing structure is needed to meet user needs.

[0006] Therefore, the purpose of this invention is to provide an ignition coil with a sealed structure.

[0007] To solve the above technical problems, this utility model provides the following technical solution: an ignition coil with a sealing structure, including a fixing base, a high-voltage terminal installed at the bottom of the fixing base, and a spark plug installed at the bottom of the high-voltage terminal, a sealing post installed at the bottom inside the fixing base, an installation groove opened inside the fixing base, and an elastic sealing component installed on the inner wall of the installation groove, an installation sleeve provided inside the fixing base, a coil mechanism installed at the top of the installation sleeve, a connector installed on the outer wall of the coil mechanism, and an anti-interference resistor installed at the bottom of the installation sleeve.

[0008] As a preferred embodiment of the ignition coil with a sealing structure of the present invention, wherein: the inner wall of the mounting sleeve is equipped with a first sealing ring assembly, and the inner wall of the mounting sleeve is equipped with an internal thread.

[0009] By adopting the above technical solution, this solution improves the sealing effect of the first sealing ring assembly by designing the first sealing ring assembly to achieve deformation under compression.

[0010] As a preferred embodiment of the ignition coil with a sealing structure of this utility model, wherein: a second sealing ring assembly is installed on the inner wall of each sealing column, and an external thread is installed on the inner wall of each sealing column, and the external thread is threadedly connected to the internal thread, and the second sealing ring assembly cooperates with the first sealing ring assembly.

[0011] By adopting the above technical solution, this solution uses external and internal threads to connect, so that when the sealing column is threadedly installed with the mounting sleeve, the second sealing ring assembly and the first sealing ring assembly cooperate with each other.

[0012] As a preferred embodiment of the ignition coil with a sealing structure of the present invention, the second sealing ring assembly and the first sealing ring assembly are the same size and structure. The first sealing ring assembly includes a circular ring body, an elastic pad is installed inside the circular ring body, and a first spring body is installed at both ends of the elastic pad. The end of the first spring body away from the elastic pad is fixedly connected to the side wall of the circular ring body.

[0013] By adopting the above technical solution and through the design of the first spring body and the ring body, the sealing effect is improved when the two sets of second sealing ring assemblies and the first sealing ring assembly are squeezed against each other.

[0014] As a preferred embodiment of the ignition coil with a sealing structure of the present invention, the elastic sealing component includes a first elastic layer, elastic reinforcing ribs are arranged horizontally inside the first elastic layer, a second elastic layer is provided at the bottom end of the first elastic layer, and a third elastic layer is provided at the bottom end of the second elastic layer.

[0015] By adopting the above technical solution and designing elastic reinforcing ribs, the elastic reinforcing ribs deform under compression, thereby improving the sealing effect of the elastic sealing component.

[0016] In a preferred embodiment of the ignition coil with a sealing structure of the present invention, an elastic plate is installed in a horizontal arrangement inside the second elastic layer, and a second spring body is installed on the inner wall of the elastic plate. The end of the second spring body away from the elastic plate is fixedly connected to the side wall of the second elastic layer.

[0017] By adopting the above technical solution, through the design of the elastic plate and the second spring body, the second spring body and the elastic plate are first compressed and deformed, and then the second spring body and the elastic plate elastically recover, so that the sealing effect of the elastic sealing assembly is better.

[0018] In a preferred embodiment of the ignition coil with a sealed structure according to this utility model, elastic balls are arranged horizontally inside the third elastic layer.

[0019] By adopting the above technical solution and designing multiple sets of elastic balls, the elastic balls are deformed under compression, thereby improving the sealing effect of the elastic sealing component through the third elastic layer.

[0020] In a preferred embodiment of the ignition coil with a sealing structure according to this utility model, the outer wall of the sealing column is tightly fitted with the inner wall of the mounting sleeve.

[0021] By adopting the above technical solution, the outer wall of the sealing column is tightly fitted with the inner wall of the mounting sleeve, thereby improving the sealing effect when the sealing column is installed with the mounting sleeve.

[0022] The ignition coil with a sealing structure of this utility model has the following beneficial effects: This invention firstly achieves a tight fit between the outer wall of the sealing column and the inner wall of the mounting sleeve. By inserting the sealing column into the mounting sleeve and sealing it with the first sealing ring assembly through the second sealing ring assembly, and by connecting the internal and external threads, the sealing column achieves a better sealing effect when it is threaded into the mounting sleeve. This is due to the design of the first and second sealing ring assemblies, as well as the deformation caused by the elastic pad and the first spring body under pressure.

[0023] This invention firstly utilizes the sealing column, when threadedly connected to the mounting sleeve, to ensure a tight fit between the inner wall of the mounting groove and the outer wall of the mounting sleeve. Through the design of the elastic sealing component, the elastic reinforcing ribs inside the first elastic layer deform under pressure, while the elastic plate and the second spring body also deform under pressure, and the elastic ball deforms under pressure. This, combined with the elastic recovery of the reinforcing ribs, elastic plate, second spring body, and elastic ball, results in a better sealing effect when the mounting groove is tightly fitted to the outer wall of the mounting sleeve. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a front view disassembly diagram of an ignition coil with a sealed structure. Figure 2 This is a schematic diagram of the main structure of an ignition coil with a sealed structure. Figure 3 This is a schematic diagram of the main assembly structure of an ignition coil with a sealing structure. Figure 4 A schematic diagram of the internal mounting structure of an ignition coil with a sealing structure, including the mounting sleeve and the sealing post. Figure 5 A schematic diagram showing the internal structure of the mounting sleeve and sealing post of an ignition coil with a sealing structure after disassembly. Figure 6 A schematic diagram of the internal structure of the first sealing ring assembly of an ignition coil with a sealing structure; Figure 7 This is a schematic diagram of the internal structure of an elastic sealing assembly for an ignition coil with a sealing structure.

[0025] The attached diagram lists the components represented by each number as follows: 1. Fixing base; 2. High voltage terminal; 3. Spark plug; 4. Mounting sleeve; 401. First sealing ring assembly; 4011. Ring body; 4012. Elastic pad; 4013. First spring body; 402. Internal thread; 5. Coil mechanism; 501. Connector; 6. Anti-interference resistor; 7. Sealing post; 701. Second sealing ring assembly; 702. Mounting groove; 703. Elastic sealing assembly; 7031. First elastic layer; 7032. Elastic reinforcing rib; 7033. Second elastic layer; 7034. Elastic plate; 7035. Second spring body; 7036. Third elastic layer; 7037. Elastic ball; 704. External thread. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an 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 phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Example 1: Refer to Figures 1-7 This is the first embodiment of the present invention. This embodiment provides an ignition coil with a sealing structure, which can achieve the sealing of current automotive ignition coils, which are all sealed by rubber rings. However, during installation and disassembly, the sealing effect of the rubber rings is easily deteriorated. The embodiment includes a fixing base 1, a high-voltage terminal 2 installed at the bottom of the fixing base 1, and a spark plug 3 installed at the bottom of the high-voltage terminal 2. A sealing post 7 is installed at the bottom of the interior of the fixing base 1. An installation groove 702 is opened inside the fixing base 1, and an elastic sealing component 703 is installed on the inner wall of the installation groove 702. An installation sleeve 4 is provided inside the fixing base 1, and a coil mechanism 5 is installed at the top of the installation sleeve 4. A connector 501 is installed on the outer wall of the coil mechanism 5, and an anti-interference resistor 6 is installed at the bottom of the installation sleeve 4.

[0030] Combination Figure 3 , Figure 5 and Figure 6 In the embodiments of this utility model, the inner wall of the mounting sleeve 4 is equipped with a first sealing ring assembly 401, and the inner wall of the mounting sleeve 4 is equipped with an internal thread 402. Through the design of the first sealing ring assembly 401, the sealing effect of the first sealing ring assembly 401 is improved by the deformation caused by the compression of the first sealing ring assembly 401.

[0031] Combination Figure 3 , Figure 5 and Figure 6In the embodiments of this utility model, a second sealing ring assembly 701 is installed on the inner wall of each sealing column 7, and an external thread 704 is installed on the inner wall of each sealing column 7. The external thread 704 is threadedly connected to the internal thread 402. The second sealing ring assembly 701 and the first sealing ring assembly 401 cooperate with each other. The second sealing ring assembly 701 and the first sealing ring assembly 401 have the same size and structure. The first sealing ring assembly 401 includes a circular ring body 4011. An elastic pad 4012 is installed inside the circular ring body 4011, and a first spring body 4013 is installed at both ends of the elastic pad 4012. The end of the first spring body 4013 away from the elastic pad 4012 is fixedly connected to the side wall of the circular ring body 4011. Through the design of the first spring body 4013 and the circular ring body 4011, the sealing effect is better when the two sets of second sealing ring assemblies 701 and first sealing ring assemblies 401 are squeezed together.

[0032] Combination Figure 3 , Figure 4 and Figure 5 In this embodiment of the invention, the outer wall of the sealing column 7 is tightly fitted to the inner wall of the mounting sleeve 4. By tightly fitting the outer wall of the sealing column 7 to the inner wall of the mounting sleeve 4, the sealing effect of the sealing column 7 is improved when it is installed with the mounting sleeve 4.

[0033] The specific working principle is as follows: when the sealing column 7 needs to be threaded into the mounting sleeve 4, the outer wall of the sealing column 7 is first tightly fitted to the inner wall of the mounting sleeve 4. The sealing column 7 is then inserted into the mounting sleeve 4 and sealed to each other by the second sealing ring assembly 701 and the first sealing ring assembly 401. The internal thread 402 is threaded into the external thread 704. When the sealing column 7 is threaded into the mounting sleeve 4, the design of the first sealing ring assembly 401 and the second sealing ring assembly 701, along with the deformation caused by the elastic pad 4012 and the first spring body 4013, result in a better sealing effect when the first sealing ring assembly 401 and the second sealing ring assembly 701 cooperate and compress each other.

[0034] Example 2: Refer to Figures 1-6 This is the first embodiment of the present invention. This embodiment provides an ignition coil with a sealing structure, which can achieve the current automotive ignition coil sealing, which is all sealed by rubber rings. During installation and disassembly, the sealing effect of the rubber rings is easily deteriorated. The elastic sealing component 703 includes a first elastic layer 7031, elastic reinforcing ribs 7032 are arranged horizontally inside the first elastic layer 7031, a second elastic layer 7033 is provided at the bottom end of the first elastic layer 7031, and a third elastic layer 7036 is provided at the bottom end of the second elastic layer 7033.

[0035] Combination Figure 3 , Figure 4 and Figure 7 In this embodiment of the present invention, elastic plates 7034 are arranged horizontally inside the second elastic layer 7033, and a second spring body 7035 is installed on the inner wall of the elastic plate 7034. The end of the second spring body 7035 away from the elastic plate 7034 is fixedly connected to the side wall of the second elastic layer 7033. Elastic balls 7037 are arranged horizontally inside the third elastic layer 7036. Through the design of multiple sets of elastic balls 7037, the multiple sets of elastic balls 7037 are deformed by compression, thereby improving the sealing effect of the elastic sealing component 703 through the third elastic layer 7036.

[0036] The specific working principle is as follows: First, when the sealing column 7 is threadedly connected to the mounting sleeve 4, the inner wall of the mounting groove 702 is tightly fitted to the outer wall of the mounting sleeve 4. Thus, through the design of the elastic sealing component 703, when the elastic sealing component 703 is compressed, the elastic reinforcing rib 7032 inside the first elastic layer 7031 deforms. At the same time, the elastic plate 7034 and the second spring body 7035 are compressed and deformed, and the elastic ball 7037 is compressed and deformed. Thus, through the elastic recovery of the elastic reinforcing rib 7032, elastic plate 7034, second spring body 7035 and elastic ball 7037, the sealing effect is better when the mounting groove 702 is tightly fitted to the outer wall of the mounting sleeve 4.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An ignition coil with a sealed structure, characterized in that: include, A fixed base (1) is provided with a high-voltage terminal (2) installed at the bottom end of the fixed base (1) and a spark plug (3) installed at the bottom end of the high-voltage terminal (2). A sealing column (7) is installed at the bottom end inside the fixed base (1). An installation groove (702) is provided inside the fixed base (1), and an elastic sealing component (703) is installed on the inner wall of the installation groove (702). An installation sleeve (4) is provided inside the fixed base (1), and a coil mechanism (5) is installed at the top end of the installation sleeve (4). A plug (501) is installed on the outer wall of the coil mechanism (5). An anti-interference resistor (6) is installed at the bottom end of the installation sleeve (4).

2. The ignition coil with a sealed structure as described in claim 1, characterized in that: The inner wall of each mounting sleeve (4) is equipped with a first sealing ring assembly (401), and the inner wall of each mounting sleeve (4) is equipped with an internal thread (402).

3. The ignition coil with a sealed structure as described in claim 1, characterized in that: The inner wall of each sealing column (7) is equipped with a second sealing ring assembly (701), and the inner wall of each sealing column (7) is equipped with an external thread (704), and the external thread (704) is threadedly connected to the internal thread (402). The second sealing ring assembly (701) and the first sealing ring assembly (401) cooperate with each other.

4. An ignition coil with a sealed structure as described in claim 3, characterized in that: The second sealing ring assembly (701) and the first sealing ring assembly (401) have the same size and structure. The first sealing ring assembly (401) includes a circular ring body (4011). An elastic pad (4012) is installed inside the circular ring body (4011), and a first spring body (4013) is installed at both ends of the elastic pad (4012). The end of the first spring body (4013) away from the elastic pad (4012) is fixedly connected to the side wall of the circular ring body (4011).

5. An ignition coil with a sealed structure as described in claim 1, characterized in that: The elastic sealing assembly (703) includes a first elastic layer (7031), and elastic reinforcing ribs (7032) are installed in a transverse arrangement inside the first elastic layer (7031). A second elastic layer (7033) is provided at the bottom end of the first elastic layer (7031), and a third elastic layer (7036) is provided at the bottom end of the second elastic layer (7033).

6. An ignition coil with a sealed structure as described in claim 5, characterized in that: The second elastic layer (7033) has an elastic plate (7034) arranged horizontally inside, and a second spring body (7035) is installed on the inner wall of the elastic plate (7034). The end of the second spring body (7035) away from the elastic plate (7034) is fixedly connected to the side wall of the second elastic layer (7033).

7. An ignition coil with a sealed structure as described in claim 5, characterized in that: The third elastic layer (7036) has elastic balls (7037) arranged horizontally inside.

8. An ignition coil with a sealed structure as described in claim 1, characterized in that: The outer wall of the sealing column (7) is tightly fitted to the inner wall of the mounting sleeve (4).

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