CN215265799U - Ignition coil sheath and engine with same - Google Patents
Ignition coil sheath and engine with same Download PDFInfo
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- CN215265799U CN215265799U CN202120093890.0U CN202120093890U CN215265799U CN 215265799 U CN215265799 U CN 215265799U CN 202120093890 U CN202120093890 U CN 202120093890U CN 215265799 U CN215265799 U CN 215265799U
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- ignition coil
- sealing cap
- coil sheath
- sealing
- exhaust
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Abstract
The utility model relates to an ignition coil sheath and an engine with the same, which comprises a hollow sheath body arranged below an ignition coil, wherein a hollow sealing cap is coaxially arranged at the top end of the sheath body, and the bottom edge of the sealing cap extends downwards to form a sealing skirt edge; an exhaust passage is also arranged in the sealing cap, a first exhaust hole of the exhaust passage is arranged at the bottom of the sealing cap, and a second exhaust hole is arranged on the side wall of the sealing cap; the ignition coil is arranged between the ignition coil and the ignition coil sheath; the protective cover is of a cylindrical structure, one end of the cylindrical structure is an open end, the other end of the cylindrical structure is a closed end, and the closed end is further provided with a through hole along the axis direction; the protective cover is covered on the sealing cap, and the open end is abutted to the cover plate. The utility model discloses have and solve and avoid entering ignition coil bush such as water, impurity, lead to the problem of bush and spark plug corrosion.
Description
Technical Field
The utility model belongs to the technical field of the engine technique and specifically relates to an ignition coil sheath and have its engine is related to.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
The top of the existing ignition coil sheath is provided with an exhaust hole, when an engine runs, high-pressure gas in a cylinder can not be completely sealed by a spark plug sealing gasket, so that the high-pressure gas can be led to be connected into the ignition coil sheath in series, and a high-voltage wire assembly is damaged in a sealing manner with the outside. After the seal is damaged, water and impurities may enter the ignition coil bushing, so that the bushing and the spark plug are corroded, and creepage short circuit and the like are caused. In order to solve the problems, the existing ignition coil sheath is provided with an exhaust hole, but when an engine is washed or rained and the inside of an engine shutdown cooling machine body becomes negative pressure, water, impurities and the like can flow into the ignition coil bushing through the exhaust hole, so that the bushing and a spark plug are corroded, and the spark plug is damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem of how to avoid water, impurities and the like entering the ignition coil bushing to cause the corrosion of the bushing and the spark plug. The purpose is realized by the following technical scheme:
the utility model provides an ignition coil sheath, which comprises a hollow sheath body arranged below an ignition coil, wherein a hollow sealing cap is coaxially arranged at the top end of the sheath body, and the bottom edge of the sealing cap extends downwards to form a sealing skirt edge; an exhaust passage is further arranged in the sealing cap, a first exhaust hole of the exhaust passage is arranged at the bottom of the sealing cap, and a second exhaust hole is arranged on the side wall of the sealing cap;
the protective cover is arranged between the ignition coil and the ignition coil sheath; the protective cover is of a cylindrical structure, one end of the cylindrical structure is an open end, the other end of the cylindrical structure is a closed end, and the closed end is further provided with a through hole along the axis direction; the protective cover is covered on the sealing cap, and the open end is abutted to the cover plate.
According to the ignition coil sheath of the utility model, through the arrangement of the exhaust passage and the protective cover, the top exhaust is changed into the side exhaust, thereby avoiding the risk of top exhaust and water intake and having better waterproof effect; and a protective cover is added between the ignition coil and the ignition coil sheath, so that the waterproof effect is further improved.
When the engine runs, gas leaked from the spark plug gasket passes through the exhaust passage and the protective cover of the ignition coil sheath, and is discharged to the atmosphere; when the engine is cleaned, the protective cover and the exhaust passage can prevent water from entering the exhaust passage.
In addition, according to the utility model discloses an ignition coil sheath still can have following additional technical characterstic:
in some embodiments of the present invention, the side wall of the sealing cap is concave to form a water storage cavity, and the water storage cavity is communicated with the second exhaust hole.
In some embodiments of the present invention, the water storage cavity is disposed at a position close to the bottom side of the sealing cap and inclined downward.
In some embodiments of the present invention, at least one sealing protrusion having an air outlet is disposed between the water storage cavity and the open end of the protection cover on the inner side wall of the protection cover, and the sealing protrusion can abut against the side wall of the sealing cap.
In some embodiments of the utility model, the gas vent with the water storage chamber setting of staggering, sealed protruding at least is twice, adjacent twice sealed protruding last the gas vent is followed the circumference of protection casing is 180 settings of staggering.
In some embodiments of the present invention, the open end and the cover plate form an end face seal and are waterproof, and the open end faces the end face of the cover plate.
In some embodiments of the present invention, the gap is spaced 180 ° from the exhaust port on the sealing protrusion.
In some embodiments of the present invention, the top end of the sealing cap is provided with a positioning hole, and the position of the closed end relative to the positioning hole is provided with a positioning block positioned in cooperation therewith.
In some embodiments of the present invention, the positioning hole is spaced 180 ° apart from the vent hole on the sidewall of the sealing cap.
The utility model discloses an another has one's face still provided an engine, its characterized in that: the engine comprises an ignition system, and the ignition system is the ignition coil sheath in any embodiment.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
FIG. 1 is a schematic overall structure of the present application;
FIG. 2 is a schematic view of the protective cover of the present application;
fig. 3 is an enlarged schematic view of a portion a in fig. 1.
Reference numerals:
1. an ignition coil; 2. a sheath body; 3. a sealing cap; 31. an exhaust passage; 32. positioning holes; 4. a protective cover; 41. a notch; 42. positioning blocks; 5. a cover plate; 6. a water storage cavity; 7. sealing the protrusion; 71. an exhaust port; 8. a seal ring; 9. a cylinder cover; 10. a bushing.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1, according to the embodiment of the present invention, an ignition coil sheath is provided, which includes a hollow sheath body 2 disposed and connected below an ignition coil 1, a hollow sealing cap 3 is coaxially disposed on the top end of the sheath body 2, the outer diameter of the sealing cap 3 is larger than the outer diameter of the sheath body 2, and the sealing cap 3 and the sheath body 2 are integrally formed.
The sealing cap 3 is further provided with an exhaust passage 31, the exhaust passage 31 is arranged in an inverted V shape, a first exhaust hole of the exhaust passage 31 is arranged at the bottom of the sealing cap 3, and a second exhaust hole is arranged on the side wall of the sealing cap 3 at the boundary position of the sheath body 2 and the sealing cap 3. The arrangement of the inverted V-shaped exhaust passage 31 changes the top exhaust into the side exhaust, so that the risk of water inflow due to the top exhaust is avoided, and the waterproof effect is better.
During actual installation, the jacket body 2 is inserted into the liner 10, and a gap is left between the jacket body 2 and the liner 10 to form an exhaust path. The bush 10 is inserted in the cylinder cover 9 and fixed, the cylinder cover 9 is covered with the cover plate 5, the connecting part of the cover plate 5 and the bush 10 is provided with the sealing ring 8, so that engine oil can be prevented from permeating into the spark plug, and the sealing performance is improved. Further, the bottom edge of the sealing cap 3 extends downwards to form a sealing skirt, and the sealing skirt is matched with the cover plate 5 to form sealing, so that the sealing performance is further improved.
With reference to fig. 1 and 2, the ignition coil sheath further includes a protective cover 4, the protective cover 4 being disposed between the ignition coil 1 and the ignition coil sheath. The protective cover 4 is of a cylindrical structure, one end of the cylindrical structure is an open end, the other end of the cylindrical structure is a closed end, and the closed end is further provided with a through hole along the axis direction. The protective cover 4 covers the sealing cap 3, the open end of the protective cover abuts against the cover plate 5 and forms end face sealing water resistance with the cover plate 5, the closed end abuts against the bottom of the ignition coil 1, and meanwhile, a gap 41 for discharging gas is formed in the end face, facing the cover plate 5, of the open end of the protective cover 4.
And a protective cover 4 is additionally arranged between the ignition coil 1 and the ignition coil sheath, so that the waterproof effect is further improved. When the engine is running, the gas leaked from the spark plug gasket passes through the exhaust passage 31 of the ignition coil sheath and the protective cover 4, and is discharged to the atmosphere; when the engine is cleaned, the hood 4 and the inverted V-shaped exhaust passage 31 can prevent water from entering the exhaust passage 31.
As shown in fig. 1, in some embodiments of the present invention, the side wall of the sealing cap 3 is recessed to form a water storage cavity 6, and the water storage cavity 6 is communicated with the second exhaust hole. When the negative pressure is changed when the engine is cleaned or the engine is stopped and the inside of the cooling machine body is changed into negative pressure, even if a small amount of water can be stored in the protective cover 4, the water can be temporarily stored in the water storage cavity 6, and the leaked water can be prevented from entering the exhaust passage 31.
Further, as shown in fig. 1, the water storage chamber 6 is disposed obliquely downward near the side wall of the sealing skirt. The water stored in the water storage chamber 6 is allowed to flow downward as much as possible, thereby further preventing the leaked water from entering the air discharge passage 31.
As shown in fig. 2, in some embodiments of the present invention, two sealing protrusions 7 are disposed on the inner sidewall of the protective cover 4 between the water storage cavity 6 and the open end of the protective cover 4, the sealing protrusions 7 can abut against the sidewall of the sealing cap 3, and an inverted U-shaped exhaust path is formed between two adjacent sealing protrusions 7.
When the internal of the engine or the shutdown cooling machine body of the engine is cleaned and changed into negative pressure, water flows into the protective cover 4 from the notch 41, and the sealing bulge 7 can prevent the water or impurities flowing in through the notch 41 of the protective cover 4 from entering the ignition coil sheath, so that the waterproof and dustproof effects are further improved.
As shown in fig. 1, further, the exhaust ports 71 of two adjacent sealing protrusions 7 are arranged in a 180 ° staggered manner along the circumferential direction of the protection cover 4. And the air outlet 71 close to the water storage cavity 6 is staggered with the water storage cavity 6 at an interval of 180 degrees. The notch 41 on the protective cover 4 and the exhaust port 71 on the sealing bulge 7 are arranged in a staggered mode at an interval of 180 degrees.
When water or impurities enter the protective cover 4, the water or the impurities firstly flow in the inverted U-shaped exhaust path formed by the two adjacent sealing bulges 7, and when the path of one layer is filled with the water or the impurities, the water or the impurities can enter the next layer. Even if water or foreign substances are finally able to break through the sealing projection 7, the water or foreign substances are extremely small and can be temporarily stored in the water storage chamber 6, and the leaked water or foreign substances can be prevented from directly entering the exhaust passage 31 from the exhaust port 71.
With reference to fig. 2 and 3, in some embodiments of the present invention, the top end of the sealing cap 3 is provided with a positioning hole 32, the position of the closed end of the protection cover 4 relative to the positioning hole 32 is provided with a positioning block 42 positioned in cooperation therewith, and the positioning hole 32 is spaced by 180 ° from the exhaust hole on the sidewall of the sealing cap 3. The positioning block 42 is used for being matched and positioned with the positioning hole 32 at the top of the coil sheath, so that the vent holes of the coil sheath and the 3 notches 41 on the protective cover 4 are sequentially staggered by 180 degrees, and the waterproof effect is further improved.
The novel engine that still provides of this use, this engine include ignition system, ignition system includes above-mentioned ignition coil sheath.
According to the ignition coil sheath and the engine with the same, the inverted V-shaped exhaust path 31 and the inverted U-shaped exhaust path are arranged, the linear exhaust path is changed into the inverted U-shaped exhaust path, the exhaust hole of the ignition coil sheath is changed into side exhaust from top exhaust, the risk of top exhaust water inflow is avoided, and the waterproof effect is better. Increase protection casing 4 between ignition coil 1 and ignition coil sheath, breach 41, gas vent 71 and the sealed arch 7 of design on protection casing 4 satisfy waterproof, dirt-proof function under the carminative prerequisite of realization. Meanwhile, the positioning structure designed by the coil sheath and the protective cover 4 can ensure that the vent holes of the ignition coil sheath and the notch 41 and the exhaust port 71 on the protective cover 4 are staggered by 180 degrees in sequence, so that the waterproof effect is further improved. The problem of avoiding water, impurity etc. to get into bush 10, lead to bush 10 and spark plug corrosion is solved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides an ignition coil sheath, is including setting up the hollow sheath body in ignition coil below, its characterized in that: the top end of the sheath body is coaxially provided with a hollow sealing cap, and the bottom end edge of the sealing cap extends downwards to form a sealing skirt edge; an exhaust passage is further arranged in the sealing cap, a first exhaust hole of the exhaust passage is arranged at the bottom of the sealing cap, and a second exhaust hole is arranged on the side wall of the sealing cap;
the protective cover is arranged between the ignition coil and the ignition coil sheath; the protective cover is of a cylindrical structure, one end of the cylindrical structure is an open end, the other end of the cylindrical structure is a closed end, and the closed end is further provided with a through hole along the axis direction; the protective cover is covered on the sealing cap, and the open end is abutted to the cover plate.
2. The ignition coil sheath according to claim 1, characterized in that: the side wall indent of sealing cap is formed with the water storage chamber, the water storage chamber with the second exhaust hole intercommunication.
3. The ignition coil sheath according to claim 2, characterized in that: the side wall of the water storage cavity close to the bottom edge of the sealing cap is arranged obliquely downwards.
4. The ignition coil sheath according to claim 2, characterized in that: the inside wall of protection casing on in the water storage chamber with be provided with at least one sealed arch that has the gas vent between the opening end of protection casing, just sealed arch can support on the lateral wall of sealed cap.
5. The ignition coil sheath according to claim 4, characterized in that: the gas vent with the setting of staggering of water storage chamber, sealed protruding be twice at least, adjacent twice sealed protruding last the gas vent is followed the circumference of protection casing is 180 setting of staggering.
6. The ignition coil sheath according to claim 4, characterized in that: the open end and the cover plate form end face sealing and water proofing, and a notch is formed in the end face, facing the cover plate, of the open end.
7. The ignition coil sheath according to claim 6, wherein: the gap and the exhaust port on the sealing bulge are arranged at an interval of 180 degrees.
8. The ignition coil sheath according to claim 1, characterized in that: the top end of the sealing cap is provided with a positioning hole, and a positioning block which is matched with the positioning hole for positioning is arranged at the position of the closed end, which is opposite to the positioning hole.
9. The ignition coil sheath according to claim 8, wherein: the positioning hole and the exhaust hole on the side wall of the sealing cap are arranged at an interval of 180 degrees.
10. An engine, characterized in that: the engine includes an ignition system including an ignition coil sheath according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120093890.0U CN215265799U (en) | 2021-01-13 | 2021-01-13 | Ignition coil sheath and engine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120093890.0U CN215265799U (en) | 2021-01-13 | 2021-01-13 | Ignition coil sheath and engine with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215265799U true CN215265799U (en) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120093890.0U Active CN215265799U (en) | 2021-01-13 | 2021-01-13 | Ignition coil sheath and engine with same |
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| Country | Link |
|---|---|
| CN (1) | CN215265799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709058A (en) * | 2022-04-27 | 2022-07-05 | 安徽炬承汽车配件有限公司 | Ignition coil for engine with liquid cooling circulation cooling shell |
-
2021
- 2021-01-13 CN CN202120093890.0U patent/CN215265799U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709058A (en) * | 2022-04-27 | 2022-07-05 | 安徽炬承汽车配件有限公司 | Ignition coil for engine with liquid cooling circulation cooling shell |
| CN114709058B (en) * | 2022-04-27 | 2024-06-04 | 安徽炬承汽车配件有限公司 | Ignition coil with liquid cooling circulation cooling shell for engine |
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