Cylinder head cover, vehicle engine and its vehicle

Abstract

This application claims protection for a cylinder head cover, a vehicle engine, and the vehicle thereof. The cylinder head cover includes a cover body with multiple mounting protrusions arranged at intervals along a first direction. Each mounting protrusion is used to mount an ignition coil. The cover body also has recessed grooves on the surface with the mounting protrusions. The grooves have sidewalls in a second direction, extending along the first direction and forming gaps with the outer peripheral walls of each mounting protrusion. The first and second directions are angled. In the second direction, the sidewalls protrude outwards relative to the outer peripheral walls of each mounting protrusion. This design, on the one hand, creates a drainage path between the outer peripheral walls and sidewalls of the mounting protrusions and increases the drainage cross-sectional area, allowing the cylinder head cover to quickly drain accumulated water; on the other hand, it optimizes the overall structural strength and rigidity of the cylinder head cover.

Description

Technical Field

[0001] This utility model belongs to the technical field of vehicle engine, and in particular relates to a cylinder head cover, a vehicle engine and the vehicle thereof. Background Technology

[0002] The cylinder head cover of a vehicle engine is a critical protective component installed on the top of the cylinder head. It is mainly used to seal the valve mechanism (such as camshaft, valve spring, etc.), prevent oil leakage, and prevent dust, moisture and other contaminants from entering the engine.

[0003] Currently, traditional cylinder head covers are prone to water retention issues when operating in wading conditions, preventing water from draining quickly and forcing it to evaporate slowly due to the high temperatures generated by the engine. This water retention not only accelerates the aging of cylinder head covers made of plastic but also affects their long-term reliability and durability, potentially leading to serious consequences such as seal failure and internal corrosion. Furthermore, due to the highly compact layout of modern vehicle engines, conventional cylinder head cover designs often struggle to simultaneously optimize drainage performance and structural strength within a limited space. This problem is particularly pronounced in off-road vehicles and other vehicles requiring high wading capabilities. Utility Model Content

[0004] In view of this, it is necessary to provide a cylinder head cover, a vehicle engine, and a vehicle thereof to solve the above-mentioned technical problems.

[0005] A cylinder head cover includes a cover body, on which a plurality of mounting protrusions are formed. The plurality of mounting protrusions are arranged at intervals along a first direction, and each mounting protrusion is used to mount an ignition coil.

[0006] Along the height direction of the cylinder head cover, the cover body also forms an inwardly recessed groove on the surface where the mounting protrusion is provided. The groove has a sidewall in the second direction. The sidewall extends along the first direction and forms a gap with the outer peripheral wall of each mounting protrusion. The second direction and the first direction are at an angle.

[0007] In the second direction, the sidewall protrudes outward relative to the portion of the outer peripheral wall of each mounting protrusion.

[0008] Understandably, by utilizing the gap between at least partially protruding sidewalls and the outer peripheral wall of the mounting protrusion, a drainage path can be constructed between the outer peripheral wall and sidewall of the mounting protrusion, enabling the cylinder head cover to drain accumulated water and avoid water storage problems. On the other hand, the arc-shaped wavy sidewalls can guide the flow of accumulated water, which not only increases the drainage cross-sectional area but also optimizes the overall structural strength and rigidity of the cylinder head cover through the geometry of the groove, achieving a synergistic improvement in drainage performance and mechanical performance.

[0009] In one embodiment, the sidewall is arc-shaped and wavy in the first direction.

[0010] It is understandable that using the curved, wavy sidewalls for drainage is beneficial for the flow of accumulated water, thereby promoting the drainage of water from the cylinder head cover.

[0011] In one embodiment, a preset gap P is formed between the sidewall and each of the outer peripheral walls, wherein 4mm ≥ P ≥ 2mm.

[0012] In one embodiment, the groove has a bottom wall in the height direction of the cylinder head cover;

[0013] The bottom wall, the side wall, and the plurality of outer peripheral walls together enclose and form the drainage channel.

[0014] In one embodiment, each of the outer peripheral walls is connected to the side wall by a reinforcing rib;

[0015] The reinforcing rib is housed within the drainage channel.

[0016] It is understandable that using reinforcing ribs to connect the outer peripheral wall and the side wall can strengthen the structure of the mounting protrusion, thereby further improving the overall structural strength and rigidity of the cylinder head cover.

[0017] In one embodiment, the cover body is further provided with a bushing for threaded parts to pass through, the bushing extending along the height direction of the cylinder head cover;

[0018] In the height direction of the cylinder head cover, the height of the bushing is lower than the height of the mounting protrusion.

[0019] It is understandable that using a bushing with a height difference from the mounting protrusion to assist in the installation of threaded parts can reduce the material cost of the bushing.

[0020] In one embodiment, the cover body also has an outlet, which is connected in communication with the groove;

[0021] The outlet is provided to penetrate the cover body along the first direction.

[0022] In one embodiment, a flat surface is also formed on the surface of the cover body where the groove is provided, and the flat surface is recessed along the height direction of the cylinder head cover;

[0023] Wherein, along the height direction of the cylinder head cover, the plane is positioned at a lower position on the cover body than the outlet is positioned on the cover body.

[0024] Understandably, using a plane lower than the outlet to guide the water out of the outlet serves two purposes. First, the height difference between the plane and the outlet facilitates the outflow of water, resulting in rapid drainage. Second, the outward drainage of water from the plane simplifies the molding process compared to using pre-drained holes, allowing the plane to be molded as a single unit with the main body of the cover.

[0025] This application also provides a vehicle engine, including the cylinder head cover described above.

[0026] This application also provides a vehicle, including the cylinder head cover or vehicle engine described above.

[0027] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0028] The cylinder head cover, vehicle engine, and vehicle for which this application seeks protection utilize the gap between at least partially protruding sidewalls and the outer peripheral wall of the mounting protrusion. On the one hand, this allows the cylinder head cover to create a drainage path between the outer peripheral wall of the mounting protrusion and the sidewall, enabling it to drain accumulated water and prevent water storage problems. On the other hand, the arc-shaped, wavy sidewalls can guide the flow of accumulated water, which not only increases the drainage cross-sectional area but also optimizes the overall structural strength and rigidity of the cylinder head cover through the geometry of the grooves, achieving a synergistic improvement in drainage performance and mechanical performance. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the cylinder head cover provided in this application.

[0031] Figure 2This is a front view of the cylinder head cover provided in this application.

[0032] Figure 3 This is a structural schematic diagram of the cylinder head cover provided in this application from another perspective.

[0033] Reference numerals: 100, cylinder head cover; 110, cover body; 10, mounting protrusion; 11, outer peripheral wall; 20, groove; 21, side wall; 211, arc-shaped convex surface; 212, arc-shaped concave surface; 22, bottom wall; 201, outlet; 30, reinforcing rib; 40, plane; 50, bushing; 101, drainage groove. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] It should be noted that when a component is said to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or may have an intervening component.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] The cylinder head cover 100 claimed in this application is applied to a vehicle engine (not shown), specifically installed on the top of the cylinder head of the vehicle engine, to prevent oil leakage from the vehicle engine and to prevent dust, moisture and other contaminants from entering the interior of the vehicle engine.

[0038] like Figure 1 , Figure 2As shown, the cylinder head cover 100 provided in this application includes a cover body 110, on which a plurality of mounting protrusions 10 are formed. The plurality of mounting protrusions 10 are arranged sequentially at intervals along a first direction Y, wherein each mounting protrusion 10 is used to mount an ignition coil (not shown). The cover body 110 also has a recessed groove 20 formed on the surface where the mounting protrusions 10 are provided. The groove 20 has a sidewall 21 in a second direction X. The sidewall 21 extends along the first direction Y and forms a gap with the outer peripheral wall 11 of each mounting protrusion 10. The first direction Y and the second direction X are angularly arranged. In the second direction X, the sidewall 21 protrudes outward relative to the portion of the outer peripheral wall 11 of each mounting protrusion 10. That is, this application uses the at least partially protruding sidewall 21 surrounding the plurality of mounting protrusions 10 to form the drainage structure of the cylinder head cover 100. Here, the cover body 110 can be integrally injection molded from existing plastic materials. Understandably, the cylinder head cover 100 of this application utilizes the gap between the at least partially protruding sidewall 21 and the outer peripheral wall 11 of the mounting protrusion 10 to construct a drainage path between the outer peripheral wall 11 of the mounting protrusion 10 and the sidewall 21, enabling the cylinder head cover 100 to drain accumulated water and avoid water storage problems. On the other hand, the arc-shaped wavy sidewall 21 can also guide the flow of accumulated water, which not only increases the drainage cross-sectional area, but also optimizes the overall structural strength and rigidity of the cylinder head cover 100 through the geometry of the groove 20, achieving a synergistic improvement in drainage performance and mechanical performance.

[0039] In this application, the second direction X is set at a 90° angle to the first direction Y. It is understood that in other embodiments, the angle between the second direction X and the first direction may also be 85°, 88°, 92°, etc., which will not be elaborated here.

[0040] It should be noted that the side wall 21 of the groove 20 in this application is designed to conform to the outer peripheral wall 11 of the mounting protrusion 10, so that the gap between the side wall 21 and the outer peripheral wall 11 can reduce the space required for the groove 20 to be designed on the cover body 110 while meeting the drainage requirements, so as to meet the usage requirements of arranging the drainage structure on the compact cylinder head cover 100.

[0041] like Figure 1 , Figure 2 As shown, in one embodiment, there are four mounting protrusions 10, which are arranged at equal intervals along the first direction Y at the center of the cylinder head cover 100. That is, the cylinder head cover 100 is applied to a vehicle engine with four cylinders. It is understood that in other embodiments, the spacing between two adjacent mounting protrusions 10 in the first direction Y may also be unequal; or the number of mounting protrusions 10 may be configured as three, five, etc., which can be specifically set according to the usage requirements of the vehicle engine.

[0042] It should be noted that when the ignition coil is mounted on the mounting protrusion 10 of the cylinder head cover 100, the cylinder head cover 100 will not cause blockage of the gap between the outer peripheral wall 11 and the side wall 21 due to the mounting of the ignition coil on the mounting protrusion 10, so that the cylinder head cover 100 always has the function of normal water drainage when it is installed and used in the vehicle engine.

[0043] like Figure 1 , Figure 2 As shown, in the first direction Y, the sidewall 21 has an arc-shaped wave pattern. Specifically, the sidewall 21 includes an arc-shaped convex surface 211 and an arc-shaped concave surface 212, and the number of arc-shaped convex surfaces 211 and arc-shaped concave surfaces 212 is set to multiple. In the first direction Y, the arc-shaped convex surfaces 211 and arc-shaped concave surfaces 212 are alternately connected, ultimately forming the arc-shaped wave structure of the sidewall 21. This allows the cylinder head cover 100 to guide the flow of accumulated water using the arc-shaped wave sidewall 21, which facilitates the flow of accumulated water and thus promotes the drainage of accumulated water from the cylinder head cover 100. Here, a rounded transition is used between the arc-shaped convex surface 211 and the arc-shaped concave surface 212. It is understood that in other embodiments, the portion of the sidewall 21 relative to the outer peripheral wall 11 of the mounting protrusion 10 in the second direction X may also be V-shaped or Z-shaped, and the portion of the sidewall 21 located on the outer peripheral wall 11 of two adjacent mounting protrusions 10 may also be straight, which will not be elaborated here.

[0044] Here, the number of arc-shaped convex surfaces 211 can be six, seven, eight, or ten, and the number of arc-shaped concave surfaces 212 can be six, seven, eight, or ten. Of course, the specific number of arc-shaped convex surfaces 211 and arc-shaped concave surfaces 212 can be set according to actual needs.

[0045] Furthermore, the gap between the side wall 21 and each outer peripheral wall 11 is P, where 4mm ≥ P ≥ 2mm. This allows the gap between the side wall 21 and the outer peripheral wall 11 in the cylinder head cover 100 of this application to be as small as possible, so as to meet the usage requirements of arranging drainage structures within the compact arrangement space of the cylinder head cover 100.

[0046] Here, the specific value of P can be 4mm, 3.8mm, 3.3mm, 3.1mm, or 3mm, 2mm, etc. Of course, it is not limited to these; the value of P can also be designed according to the specific needs of the application, which will not be elaborated here.

[0047] like Figure 1 , Figure 2As shown, in the height direction Z of the cylinder head cover 100, the groove 20 has a bottom wall 22, and the bottom wall 22, side wall 21, and multiple outer peripheral walls 11 together form a drainage groove 101, so that the cylinder head cover 100 is installed in a vehicle engine and can drain water through the drainage groove 101. Specifically, the water can flow along the arc-shaped wavy side wall 21 and eventually drain out, preventing water accumulation problems in vehicles using this engine when the user sprays water or drives through water.

[0048] like Figure 1 , Figure 2 As shown, in one embodiment, each outer peripheral wall 11 is connected to a reinforcing rib 30 between itself and the side wall 21, and the reinforcing rib 30 is housed within a drainage groove 101. This allows the cylinder head cover 100 of this embodiment to use the reinforcing rib 30 to support the portion of each mounting protrusion 10 extending from the bottom wall 22, thereby strengthening the structure of the mounting protrusion 10 and further improving the overall structural strength and rigidity of the cylinder head cover 100.

[0049] Here, each mounting protrusion 10 corresponds to two reinforcing ribs 30, and the reinforcing ribs 30 corresponding to each mounting protrusion 10 are arranged on the same side of the plurality of mounting protrusions 10, specifically integrally injection molded with the mounting protrusions 10. It is understood that in other embodiments, the number of reinforcing ribs 30 corresponding to each mounting protrusion 10 may also be one, three, or even more, which will not be elaborated here.

[0050] like Figure 1 , Figure 2 As shown, an outlet 201 is also formed on the cover body 110, and the outlet 201 is connected to the groove 20; wherein, the outlet 201 penetrates the cover body 110 in the first direction Y. That is to say, water accumulated in the groove 20 on the cylinder head cover 100 of this application can be discharged from the cover body 110 through the outlet 201, which smoothly transitions with the groove 20. It is understood that in other embodiments, water can also be discharged by opening a drainage hole (not shown) on the cover body 110 that communicates with the groove 20, which will not be elaborated here.

[0051] Please continue reading. Figure 1 and Figure 2In one embodiment, a plane 40 is formed on the surface of the cover body 110 where the groove 20 is provided, and the plane 40 is recessed along the height direction Z of the cover body 110; wherein, along the height direction Z of the cover body 110, the plane 40 is positioned lower than the position of the outlet 201 on the cover body 110. That is to say, the cylinder cover 100 of this embodiment utilizes the height difference between the plane 40 and the outlet 201, allowing the water flowing out of the outlet 201 to flow smoothly down and be discharged externally, thus achieving the function of quickly draining water; at the same time, the external drainage of water using the plane 40 simplifies the molding difficulty required when manufacturing the cover body 110 compared to the method of external drainage through reserved drainage holes, allowing the plane 40 to be molded integrally with the cover body 110.

[0052] like Figure 1 , Figure 2 As shown, in one embodiment, the cover body 110 is further provided with a bushing 50 for threaded parts (not shown); the bushing 50 extends along the height direction Z of the cylinder head cover 100; and, in the height direction Z of the cylinder head cover 100, the height of the bushing 50 is lower than the height of the mounting protrusion 10. That is, in this embodiment, the height of the bushing 50 is less than the height of the mounting protrusion 10, which can reduce the material cost of the bushing 50. Here, the threaded part can be a bolt or screw, etc.

[0053] Furthermore, each mounting protrusion 10 is provided with a bushing 50 on one side in the first direction Y. It should be noted that the threaded part passing through the bushing 50 is specifically used to screw onto the cylinder head to assemble and fix the cylinder head cover 100 onto the cylinder head; of course, the bushing 50 mentioned above is only part of the bushing for assembling and fixing the cylinder head cover 100 onto the cylinder head, and the specific arrangement position of the remaining bushings on the cover body 110 can be specifically set according to the usage requirements, which will not be elaborated here.

[0054] like Figure 1 , Figure 2 As shown, one end face of the bushing 50 in the height direction Z of the cylinder head cover 100 is flush with the bottom wall 22. That is, the bushing 50 is not protruding from the bottom wall 22 on the cover body 110, so as to meet the use requirement that the threaded part passing through the bushing 50 presses and limits the cylinder head cover 100 to the cylinder head.

[0055] It should be noted that, as Figure 3 As shown, the other end face of the bushing 50 in the height direction Z of the cylinder head cover 100 is flush with the other end face of the mounting protrusion 10, specifically for abutting and limiting against the cylinder head.

[0056] In summary, the cylinder head cover 100 of this application solves the problem of water accumulation caused by the height difference between the ignition coil on the mounting protrusion 10 and the threaded part on the bushing 50 by innovatively designing a groove 20 on the cover body 110. At the same time, without increasing the height of the bushing 50 or the cost, a drainage groove 101 with a gap of at least 3mm is provided on the outer side of the outer peripheral wall 11 of the mounting protrusion 10, so that the drainage groove 101 can drain the accumulated water and avoid water retention. In addition, the optimized groove 20 design also enhances the overall structural strength and rigidity of the cylinder head cover 100, achieving a dual improvement in drainage performance and mechanical performance.

[0057] This application also provides a vehicle engine, including the cylinder head cover 100 described above.

[0058] This application also provides a vehicle, including the cylinder head cover 100 described above or a vehicle engine.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A cylinder head cover, comprising a cover body (110), wherein a plurality of mounting protrusions (10) are formed on the cover body (110), the plurality of mounting protrusions (10) are arranged sequentially at intervals along a first direction, and each mounting protrusion (10) is used to mount an ignition coil. Its features are, Along the height direction of the cylinder head cover (100), the cover body (110) also forms a recessed groove (20) on the surface where the mounting protrusion (10) is provided. The groove (20) has a sidewall (21) in a second direction. The sidewall (21) extends along the first direction and forms a gap with the outer peripheral wall (11) of each mounting protrusion (10). The second direction and the first direction are at an angle. In the second direction, the sidewall (21) is convex relative to the portion of the outer peripheral wall (11) on each of the mounting protrusions (10).

2. The cylinder head cover according to claim 1, characterized in that, In the first direction, the sidewall (21) is arc-shaped and wavy.

3. The cylinder head cover according to claim 1, characterized in that, The gap between the sidewall (21) and each of the outer peripheral walls (11) is set to P, where 4mm ≥ P ≥ 2mm.

4. The cylinder head cover according to claim 1, characterized in that, In the height direction of the cylinder head cover (100), the groove (20) has a bottom wall (22). The bottom wall (22), the side wall (21), and the plurality of outer peripheral walls (11) together form a drainage channel (101).

5. The cylinder head cover according to claim 4, characterized in that, Each of the outer peripheral walls (11) and the side walls (21) is connected by a reinforcing rib (30); The reinforcing rib (30) is housed within the drainage channel (101).

6. The cylinder head cover according to claim 1, characterized in that, The cover body (110) is also provided with a bushing (50) for threading the threaded parts, the bushing (50) extending along the height direction of the cylinder head cover (100); In the height direction of the cylinder head cover (100), the height of the bushing (50) is lower than the height of the mounting protrusion (10).

7. The cylinder head cover according to claim 1, characterized in that, An outlet (201) is also formed on the cover body (110), and the outlet (201) is connected to the groove (20); The outlet (201) is provided through the cover body (110) along the first direction.

8. The cylinder head cover according to claim 7, characterized in that, A plane (40) is also formed on the surface of the cover body (110) where the groove (20) is provided, and the plane (40) is set downward along the height direction of the cylinder head cover (100). Wherein, along the height direction of the cylinder head cover (100), the plane (40) is positioned on the cover body (110) at a position lower than the outlet (201) is positioned on the cover body (110).

9. A vehicle engine, characterized in that, Includes the cylinder head cover (100) as described in any one of claims 1 to 8.

10. A vehicle, characterized in that, Includes the cylinder head cover (100) as described in any one of claims 1 to 8; Alternatively, it may include the vehicle engine as described in claim 9.

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