Ignition coil high-voltage sheath convenient to install

Abstract

The utility model provides an ignition coil high-voltage sheath convenient to install, which relates to the technical field of ignition coil protection and comprises an external joint and a protective sleeve body, a spring is arranged in the protective sleeve body, an external connecting sleeve is fixed at the bottom of the outer wall of the protective sleeve body, and a hook rod is fixed at the bottom of the inner wall of the protective sleeve body. A connector is fixed to the middle of the top of the external connector, and a limiting ring is fixed to the outer wall of the connector. According to the device, an external connecting sleeve is inserted into a containing groove, then the position of a limiting rod is adjusted to limit the external connecting sleeve, the limiting rod drives a plurality of limiting blocks to move towards the external connecting sleeve by rotating an adjusting bolt, the pointed limiting blocks can penetrate into the connecting sleeve, and the connecting sleeve is limited through the limiting rod; and meanwhile, the connector is sleeved with the bottom end of the protective sleeve body, the hook rods and the limiting rings are hooked for connection, double limiting is conducted on the protective sleeve body, and therefore the effects that the protective sleeve is quite convenient and fast to install, and meanwhile installation is firm are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of ignition coil protection technology, and more specifically, it relates to a high-voltage sheath for ignition coils that is easy to install. Background Technology

[0002] As automotive gasoline engines develop towards higher speeds, higher compression ratios, higher power, lower fuel consumption, and lower emissions, traditional ignition systems are no longer adequate. The reason why ignition coils can convert low-voltage electricity in a vehicle into high voltage is because they have a similar form to ordinary transformers, with the primary coil having a larger turns ratio than the secondary coil. However, the working principle of ignition coils is different from that of ordinary transformers. They repeatedly store and release energy at different frequencies according to different engine speeds. The high-voltage sheath of the ignition coil can effectively protect the ignition coil and has a high degree of applicability.

[0003] Based on the above, the following problems were found: When connecting the existing high-voltage sheath to the ignition coil, it is usually directly fitted onto the connector head of the external connector to prevent the sheath from falling off after installation. Therefore, the size of the high-voltage sheath is usually made slightly smaller during production, which makes the installation of the high-voltage sheath more inconvenient. At the same time, the existing high-voltage sheath requires the application of insulating silicone grease at the connection between the sheath and the ignition coil during installation. However, some installers, for the sake of convenience, do not apply insulating silicone grease, resulting in a reduction in the service life of the high-voltage sheath.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a high-voltage sheath for the ignition coil that is easy to install, in order to achieve a more practical purpose. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides an easy-to-install high-voltage sheath for ignition coils, thus solving the problem of inconvenient installation of current high-voltage sheaths.

[0006] This utility model provides a conveniently installed high-voltage sheath for ignition coils, achieved through the following specific technical means:

[0007] A high-voltage sheath for an ignition coil that is easy to install includes an external connector and a protective sleeve. A spring is installed inside the protective sleeve. An external connecting sleeve is fixed to the bottom of the outer wall of the protective sleeve. A hook rod is fixed to the bottom of the inner wall of the protective sleeve. A connector is fixed to the middle of the top of the external connector. A limit ring is fixed to the outer wall of the connector. A placement groove is opened on the top of the external connector. A limit rod is hinged inside the placement groove. An elastic rod is fixed to the bottom of one side of the limit rod. A threaded hole is opened at the bottom of the external connector. An adjusting bolt is threaded into the threaded hole.

[0008] Furthermore, four limiting rods are provided, and the four elastic rods at the bottom of the four limiting rods are connected to each other, with the connection of the four elastic rods located in the middle of the threaded hole, and the bottom end of the adjusting bolt touches the elastic rod.

[0009] Furthermore, each of the limiting rods is fixed with a limiting block on the side away from the center of the external connector. The limiting block is pointed in shape, and there are multiple limiting blocks arranged in a equidistant manner.

[0010] Furthermore, the vertical cross-section of the external connecting sleeve is L-shaped, and the external connecting sleeve is located inside the placement groove and is used in conjunction with the limiting rod.

[0011] Furthermore, the limiting ring is arranged in an inclined ring shape, and multiple hook rods are provided, which are equidistant from each other on the circumference. The hook rods are used in conjunction with the limiting ring.

[0012] Furthermore, a thin film sheath is adhered to the top of the inner wall of the protective sleeve. The thin film sheath is arranged in a hollow circular shape, and the diameter of the thin film sheath is adapted to the diameter of the top of the inner wall of the protective sleeve.

[0013] Furthermore, the inside of the film sheath is filled with insulating silicone grease, and the material of the film sheath is polyvinyl alcohol.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In this utility model, the outer connecting sleeve is inserted into the placement groove, and the position of the limiting rod is adjusted to limit it. By rotating the adjusting bolt, the limiting rod drives multiple limiting blocks to move towards the outer connecting sleeve. The pointed limiting blocks can penetrate into the inside of the connecting sleeve, and the connecting sleeve is limited by the limiting rod. At the same time, the bottom end of the protective sleeve is fitted over the outside of the connector, and multiple hooks are hooked and connected with the limiting ring, thus providing double limiting for the protective sleeve. This achieves the effect of convenient and relatively firm installation of the protective sleeve.

[0016] 2. In this utility model, when the protective sleeve is connected to the ignition coil, the thin film sheath made of polyvinyl alcohol is crushed by the protective sleeve and the ignition coil. The insulating silicone grease inside fills the gap between the protective sleeve and the ignition coil, thereby achieving the effect of having its own insulating silicone grease to avoid the reduction of the service life of the high-voltage sheath due to laziness of the installer. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a cross-sectional schematic diagram of the overall structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the top structure of the external connector of this utility model.

[0020] Figure 4 This is a schematic diagram of the bottom structure of the external structure of this utility model.

[0021] The correspondence between the component names in the diagram and the attached drawing numbers is as follows:

[0022] 1. External connector; 2. Placement slot; 3. Elastic rod; 4. Limiting rod; 41. Limiting block; 5. Adjusting bolt; 6. Connector; 7. Limiting ring; 8. Protective sleeve; 9. Hook rod; 10. External connecting sleeve; 11. Spring; 12. Thin film sheath; 13. Insulating silicone grease; 14. Threaded hole. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; in addition, the terms "first," "second," "third," etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Example

[0025] As attached Figure 1 To be continued Figure 4 As shown:

[0026] This utility model provides a high-voltage sheath for an ignition coil that is easy to install, including an external connector 1 and a protective sleeve 8. A spring 11 is provided inside the protective sleeve 8. An external connecting sleeve 10 is fixed to the bottom of the outer wall of the protective sleeve 8. A hook rod 9 is fixed to the bottom of the inner wall of the protective sleeve 8. A connector 6 is fixed to the middle of the top of the external connector 1. A limit ring 7 is fixed to the outer wall of the connector 6. A placement groove 2 is opened on the top of the external connector 1. A limit rod 4 is hinged inside the placement groove 2. An elastic rod 3 is fixed to the bottom of one side of the limit rod 4. A threaded hole 14 is opened at the bottom of the external connector 1. An adjusting bolt 5 is threaded inside the threaded hole 14.

[0027] The limiting rod 4 is provided with four elastic rods 3 at the bottom of the four limiting rods 4. The connection of the four elastic rods 3 is located in the middle of the threaded hole 14. The bottom end of the adjusting bolt 5 touches the elastic rod 3. By rotating the adjusting bolt 5, the bottom of the adjusting bolt 5 can squeeze the elastic rod 3, so that the top of the limiting rod 4 can expand outward.

[0028] Among them, the limiting rod 4 is fixed with a limiting block 41 on the side away from the middle of the external connector 1. The limiting block 41 is set in a pointed shape. There are multiple limiting blocks 41, which are arranged in a filling and equidistant shape. The limiting rod 4 drives the multiple limiting blocks 41 to move towards the external connecting sleeve 10. The pointed limiting block 41 can penetrate into the interior of the connecting sleeve 10, and the limiting rod 4 limits the connecting sleeve 10.

[0029] The external connecting sleeve 10 has an L-shaped vertical cross section. The external connecting sleeve 10 is located inside the placement groove 2 and is used in conjunction with the limiting rod 4. The external connecting sleeve 10 is inserted into the placement groove 2, and then the position of the limiting rod 4 is adjusted to limit it.

[0030] The limiting ring 7 is arranged in an inclined ring shape, and multiple hook rods 9 are provided. The multiple hook rods 9 are arranged equidistantly around the circumference. The hook rods 9 are used in conjunction with the limiting ring 7. When the connecting sleeve 10 is inserted into the placement groove 2, the bottom end of the protective sleeve 8 is fitted over the outside of the connecting head 6. The multiple hook rods 9 are hooked and connected with the limiting ring 7 to provide double limiting for the protective sleeve 8.

[0031] The protective sleeve 8 has a thin film sleeve 12 attached to the top of its inner wall. The thin film sleeve 12 is a hollow ring and its diameter is matched with the diameter of the top of the inner wall of the protective sleeve 8, so that when the protective sleeve 8 is connected to the ignition coil, the thin film sleeve 12 can be located in the gap between the protective sleeve 8 and the ignition coil.

[0032] The thin film sheath 12 is filled with insulating silicone grease 13. The material of the thin film sheath 12 is polyvinyl alcohol. When the protective sleeve 8 is connected to the ignition coil, the thin film sheath 12 made of polyvinyl alcohol is squeezed and broken by the protective sleeve 8 and the ignition coil, and the insulating silicone grease 13 inside fills the gap between the protective sleeve 8 and the ignition coil.

[0033] The specific usage and function of this embodiment are as follows:

[0034] In this invention, when the protective sleeve 8 for installing the ignition coil needs to be removed, the external connector 1 is removed, and then the external connecting sleeve 10 is inserted into the placement groove 2. The position of the limiting rod 4 is then adjusted to limit its movement. By rotating the adjusting bolt 5, the bottom of the adjusting bolt 5 can press against the elastic rod 3, allowing the top of the limiting rod 4 to expand outward. The limiting rod 4 drives multiple limiting blocks 41 to move towards the external connecting sleeve 10. The pointed limiting blocks 41 can penetrate into the interior of the connecting sleeve 10. The limiting rod 4 then controls the connection sleeve 10. 0 is limited, and when the connecting sleeve 10 is inserted into the placement slot 2, the bottom end of the protective sleeve 8 is sleeved on the outside of the connector 6. Multiple hook rods 9 are hooked and connected with the limiting ring 7 to perform double limiting on the protective sleeve 8. After fixing, the protective sleeve 8 is inserted into the hole in the engine where the ignition coil is installed. When the protective sleeve 8 is connected to the ignition coil, the thin film sheath 12 made of polyvinyl alcohol is squeezed and broken by the protective sleeve 8 and the ignition coil, and the insulating silicone grease 13 inside fills the gap between the protective sleeve 8 and the ignition coil.

[0035] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A high voltage boot for an ignition coil which is easy to install, comprising an external joint (1) and a protective sleeve body (8), the protective sleeve body (8) being provided with a spring (11) inside, characterized in that: The outer wall bottom of the protective sleeve body (8) is fixed with an external connecting sleeve (10), the inner wall bottom of the protective sleeve body (8) is fixed with a hook rod (9), the middle of the top of the external connector (1) is fixed with a connecting head (6), the outer wall of the connecting head (6) is fixed with a limiting ring (7), the top of the external connector (1) is provided with a placing groove (2), the inside of the placing groove (2) is hinged with a limiting rod (4), one side bottom of the limiting rod (4) is fixed with an elastic rod (3), the bottom of the external connector (1) is provided with a threaded hole (14), and the threaded hole (14) is internally screwed with an adjusting bolt (5).

2. A conveniently mountable high tension shield for an ignition coil as defined in claim 1, characterized in that: The limiting rod (4) is provided with four, the four elastic rods (3) at the bottom of the four limiting rods (4) are connected with each other, and the connecting portions of the four elastic rods (3) are located in the middle of the threaded hole (14), and the bottom end of the adjusting bolt (5) is in contact with the elastic rod (3).

3. A conveniently mountable high tension shield for an ignition coil as defined in claim 2, characterized in that: The limiting rod (4) is fixed with a limiting block (41) away from the middle of the external connector (1) on one side, the limiting block (41) is provided in a pointed shape, and a plurality of limiting blocks (41) are provided in a filling equidistant manner.

4. The easily installed high tension shield for an ignition coil as set forth in claim 3, wherein: The vertical section of the external connecting sleeve (10) is provided in an L shape, the external connecting sleeve (10) is located inside the placing groove (2) and is used in matched with the limiting rod (4).

5. The easily installed high voltage boot for an ignition coil as set forth in Claim 1, wherein: The limiting ring (7) is provided in an inclined annular shape, the hook rod (9) is provided with a plurality of, the hook rods (9) are provided in a circumferential equidistant manner, and the hook rod (9) is used in matched with the limiting ring (7).

6. A conveniently mountable high tension shield for an ignition coil as defined in claim 1, characterized in that: The inner wall top of the protective sleeve body (8) is adhered with a film sheath (12), the film sheath (12) is provided in a hollow annular shape, and the diameter value of the film sheath (12) is matched with the diameter value of the inner wall top of the protective sleeve body (8).

7. A conveniently mountable high tension shield for an ignition coil as defined in claim 6, characterized in that: The inside of the film sheath (12) is filled with insulating silicone grease (13), and the material of the film sheath (12) is polyvinyl alcohol.

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