Cylinder head, engine and motor vehicle

Abstract

This application relates to a cylinder head, engine, and motor vehicle. The cylinder head includes a main body and a mounting component. The main body has a groove formed on one side surface, and a mounting hole is formed through the groove wall. The mounting component protrudes from the groove wall and is positioned close to the mounting hole. The outer edge of the mounting component is recessed inward to form a mounting notch, the opening direction of which intersects the through direction of the mounting hole. When a spark plug is installed in the mounting hole, at least a portion of the spark plug cap is engaged in the mounting notch through the opening. By providing a mounting component with a mounting notch on the main body of the cylinder head to engage the spark plug cap, stable assembly of the spark plug cap is achieved. This prevents wear on the spark plug, spark plug cap, and other electrical components caused by the spark plug and spark plug cap shaking, ensuring normal ignition operation of the vehicle and effectively extending the product's service life.

Description

Technical Field

[0001] This application relates to the field of engine technology, and in particular to a cylinder head, engine, and motor vehicle. Background Technology

[0002] In existing technologies, spark plug caps are usually fixed with wires. Since the fixing part for fixing the wires is far from the mounting part on the cylinder head for installing spark plug caps, the wires located between the fixing part and the mounting part are prone to shaking and shifting. This results in unstable installation of the spark plug caps and wear on the spark plugs and spark plug caps, which in turn leads to abnormal ignition of the whole vehicle and damage to other electrical components. Utility Model Content

[0003] Therefore, it is necessary to provide a cylinder head, engine, and motor vehicle to address the above problems.

[0004] A cylinder head, comprising:

[0005] The main body has a groove formed on one side surface, and a mounting hole is formed through the groove wall;

[0006] The mounting component protrudes from the groove wall and is positioned close to the mounting hole;

[0007] The outer edge of the mounting component is recessed inward to form a mounting notch, and the opening direction of the mounting notch intersects with the through direction of the mounting hole.

[0008] When the spark plug is installed in the mounting hole, at least a portion of the spark plug cap is engaged with the mounting notch through the opening.

[0009] In the technical solution of this application embodiment, by providing an mounting part with an installation notch on the main body of the cylinder head, the spark plug cap is snapped into the installation notch, thereby achieving stable assembly of the spark plug cap. This avoids wear on the spark plug, spark plug cap and other electrical components caused by the shaking of the spark plug and spark plug cap, ensuring the normal operation of the vehicle ignition and effectively improving the service life of the product.

[0010] In one embodiment, there are two mounting members, and the two mounting members are respectively fitted to opposite sides of the mounting hole. Each mounting member has a recessed mounting notch, and the opposite ends of the spark plug cap are respectively engaged in the mounting notch.

[0011] In the technical solution of this application embodiment, two mounting parts are respectively engaged with opposite ends of the spark plug cap along the first direction. The two mounting parts form a two-point support structure for the spark plug cap, which enables the spark plug cap to bear forces evenly, thereby improving the stability of the spark plug cap assembly. At the same time, the number of support points is small, which can correspondingly reduce the number of mounting parts and the materials required for manufacturing, thereby reducing production costs.

[0012] In one embodiment, the mounting notch gradually decreases in size along the recessed direction from its opening to its bottom; and the two opposite walls of the mounting notch together form a mounting angle A.

[0013] In the technical solution of this application embodiment, the two side walls opposite to each other of the mounting notch and the spark plug cap itself form a highly stable triangular structure. The triangular structure transmits force through the nodes, which can distribute the concentrated load to multiple support points, reduce local stress concentration, and avoid the risk of breakage. Furthermore, the spark plug cap is diagonally supported between the two side walls opposite to the mounting notch, which can improve its bending stiffness and reduce the probability of its own damage.

[0014] In one embodiment, the installation angle A needs to meet the condition: 10°≤A≤60°.

[0015] In one embodiment, among the two side walls forming the mounting angle A, the dimension of the side closer to the body along the recessed direction is greater than the dimension of the side away from the body along the recessed direction.

[0016] In the technical solution of this application embodiment, interference between the two side walls of the spark plug cap forming the installation angle A can be avoided during installation, so as to facilitate the assembly of the spark plug cap and improve the assembly efficiency and stability.

[0017] In one embodiment, the mounting component is integrally formed with the main body.

[0018] In the technical solution of this application embodiment, by integrating the mounting component with the main body, the number of connection points between the mounting component and the main body can be reduced, thereby eliminating the connection components (such as bolts and welds) of traditional split structures. This avoids the risk of failure due to fatigue at the connection points and allows for a more uniform stress distribution when the mounting component and the main body are under stress, reducing local stress concentration and effectively improving the structural strength of the cylinder head. In addition, the integrated design enables topology optimization and material integration, reducing redundant components, lowering assembly errors, and improving assembly efficiency.

[0019] An engine including a cylinder head as described in the foregoing embodiments.

[0020] In one embodiment, the engine further includes a spark plug and a spark plug cap, the spark plug cap being fitted to one end of the spark plug, the end of the spark plug opposite to the spark plug cap being inserted into the mounting hole, and the opposite ends of the spark plug cap being respectively engaged with two mounting members along a first direction.

[0021] In one embodiment, the engine further includes a wire connected to the spark plug and configured to supply power to the spark plug.

[0022] A motor vehicle, including an engine as described in the foregoing embodiments.

[0023] The aforementioned cylinder head, engine, and motor vehicle have a cylinder head body fixed to the upper end of the cylinder block, and the cylinder head and cylinder block together form a combustion chamber for the combustion of the air-fuel mixture. A spark plug cap is fitted to one end of the spark plug, and the end of the spark plug away from the spark plug cap extends into the combustion chamber through a mounting hole, enabling ignition and combustion of the air-fuel mixture in the combustion chamber when voltage is applied. The spark plug cap is located within a groove in the body, and at least partially engages with a mounting notch, achieving a fixed assembly of the spark plug cap and spark plug relative to the body. This prevents wear on the spark plug, spark plug cap, and other electrical components caused by movement between the spark plug and spark plug cap, ensuring normal ignition operation of the entire vehicle and effectively extending the product's service life. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the assembly of the cylinder head and spark plug cap in this application.

[0025] Figure 2 This is a structural schematic diagram of the cylinder head in this application from a first-view perspective.

[0026] Figure 3 This is a structural schematic diagram of the cylinder head in this application from a second perspective.

[0027] Figure 4 This is a partial structural diagram of the cylinder head in this application.

[0028] Figure Labels

[0029] Cylinder head 100;

[0030] Body 10; Groove 101; Mounting hole 102;

[0031] Mounting component 11; Mounting notch 111; First wall surface 112; Second wall surface 113; Mounting angle A;

[0032] Spark plug cap 200. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0039] This application provides a motor vehicle in one or more embodiments, and the specific types of motor vehicles include, but are not limited to, motorcycles, automobiles, etc. In this application, the motor vehicle includes an engine. The engine is mainly used to convert the chemical energy of fuel into mechanical energy to drive the motor vehicle.

[0040] Specifically, the engine includes a cylinder block, a cylinder head 100, spark plugs, spark plug caps 200, and wires. The cylinder head 100 is fixed to the upper end of the cylinder block. The cylinder head 100 and the cylinder block together form a combustion chamber for the combustion of the air-fuel mixture. The surface of the cylinder head 100 has a recessed groove 101, and the bottom of the groove 101 has a mounting hole 102.

[0041] A spark plug cap 200 is fitted onto one end of the spark plug, and the end of the spark plug opposite the spark plug cap 200 passes through the mounting hole 102 and can extend into the combustion chamber. By connecting the spark plug to a wire, electricity is supplied to the spark plug via the wire, enabling the spark plug to generate a spark and ignite the air-fuel mixture in the combustion chamber. Furthermore, the spark plug cap 200 provides insulation protection for the spark plug when it is subjected to high voltage and ignition is achieved.

[0042] In the prior art, spark plug caps are usually fixed by wires. Since the fixing part for fixing the wires is far from the mounting part on the cylinder head for installing the spark plug cap 200, the wires located between the fixing part and the mounting part are prone to shaking and shifting. This results in the spark plug cap being installed insecurely, and causes the spark plug and spark plug cap to wear, which in turn leads to abnormal ignition of the whole vehicle and damage to other electrical components.

[0043] Based on this, please see Figures 1 to 3 In one or more embodiments of this application, a cylinder head 100 for a spark plug cap 200 is also provided. By providing a mounting member 11 with a mounting notch 111 on the main body 10 of the cylinder head 100, the spark plug cap 200 is snapped into the mounting notch 111, thereby achieving stable assembly of the spark plug cap 200. This can prevent wear of the spark plug, spark plug cap 200 and other electrical components caused by the shaking of the spark plug and spark plug cap 200, thus ensuring the normal operation of the vehicle ignition and effectively improving the service life of the product.

[0044] Specifically, please see Figure 1 and Figure 2 The cylinder head 100 includes a main body 10 and a mounting member 11. A groove 101 is formed on one side surface of the main body 10, and a mounting hole 102 is formed through the groove wall of the groove 101. The mounting member 11 protrudes from the groove wall of the groove 101 and is disposed close to the mounting hole 102. The outer edge of the mounting member 11 is recessed inward to form a mounting notch 111, and the opening direction of the mounting notch 111 intersects with the through direction of the mounting hole 102. When the spark plug is installed in the mounting hole 102, at least a portion of the spark plug cap 200 is engaged in the mounting notch 111.

[0045] Understandably, the main body 10 of the cylinder head 100 is fixed to the upper end of the cylinder block, and the cylinder head 100 and the cylinder block together form a combustion chamber for the combustion of the air-fuel mixture. A spark plug cap 200 is fitted to one end of the spark plug, and the end of the spark plug away from the spark plug cap 200 extends into the combustion chamber through the mounting hole 102, enabling ignition and combustion of the air-fuel mixture in the combustion chamber when voltage is applied. The spark plug cap 200 is located within the groove 101 of the main body 10, and at least partially engages with the mounting notch 111, thus achieving a fixed assembly of the spark plug cap 200 and the spark plug relative to the main body 10. This prevents wear on the spark plug, spark plug cap 200, and other electrical components caused by shaking of the spark plug and spark plug cap 200, ensuring normal operation of the vehicle's ignition system and effectively extending the product's service life.

[0046] It should be noted that the specific arrangement and number of mounting parts 11 are not limited. Specifically, in this embodiment, there are two mounting parts 11, and the two mounting parts 11 are respectively matched with the groove walls on opposite sides of the mounting hole 102 along the first direction. Each mounting part 11 has a recessed mounting notch 111, and each mounting notch 111 penetrates the mounting part 11 along the first direction. The spark plug cap 200 is respectively engaged in the mounting notch 111 at opposite ends along the first direction.

[0047] Understandably, the two mounting pieces 11 are respectively engaged with the spark plug cap 200 at opposite ends along the first direction. The two mounting pieces 11 form a two-point support structure for the spark plug cap 200, which ensures balanced force distribution and improves the stability of the spark plug cap 200 assembly. Simultaneously, the reduced number of support points allows for a decrease in the number of mounting pieces 11 and the materials required for manufacturing, thereby reducing production costs.

[0048] In some embodiments, see Figure 2 and Figure 4 The opening size of the mounting notch 111 gradually decreases along the recessed direction from its own groove opening to its own groove bottom. Furthermore, the two opposing side walls of the mounting notch 111 together form a mounting angle A.

[0049] It is understandable that the two opposing side walls of the mounting notch 111 together form a "V" shape. For ease of understanding, the spark plug cap 200 is defined to have a length direction and a width direction, and the length direction of the spark plug cap 200 corresponds to the first direction of the spark plug cap 200 mentioned above.

[0050] Based on this, when the spark plug cap 200 is assembled within the mounting notch 111, its two opposite ends along its width direction abut against the opposite side walls of the mounting notch 111. The opposite side walls of the mounting notch 111 and the spark plug cap 200 itself form a highly stable triangular structure. This triangular structure transmits force through nodes, distributing concentrated loads to multiple support points, reducing local stress concentration, and avoiding the risk of breakage. Furthermore, the spark plug cap 200 is diagonally braced between the opposite side walls of the mounting notch 111, increasing its bending stiffness and reducing the probability of damage. This ensures stable assembly of the spark plug cap 200, preventing wear on the spark plug, spark plug cap 200, and other electrical components caused by shaking, thus ensuring normal vehicle ignition and effectively extending product lifespan.

[0051] Further, please see Figure 2 and Figure 4In the construction of the two side walls forming the mounting angle A, the dimension of the side closer to the main body 10 along the concave direction is greater than the dimension of the side away from the main body 10 along the concave direction.

[0052] For ease of understanding, the side wall forming the mounting angle A, the one closer to the main body 10, is defined as the first wall 112, and the other side away from the main body 10 is defined as the second wall 113. In this application, by setting the dimension of the second wall 113 along the concave direction to be smaller than the dimension of the first wall 112 along the concave direction, interference between the spark plug cap and the first wall 112 and the second wall 113 during installation can be avoided, thereby facilitating the assembly of the spark plug cap and improving assembly efficiency and stability.

[0053] It should also be noted that, please refer to Figure 2 and Figure 4 The specific value range of the installation angle A is not limited. Specifically, in the embodiments of this application, the installation angle A needs to meet the condition: 10°≤A≤60°, for example: 10°, 20°, 30°, 40°, 45°, 50° and 60°, etc.

[0054] Understandably, the installation angle A is generally set to an acute angle, and the specific value of the installation angle A needs to take into account various factors. For example, the minimum value of the installation angle A needs to ensure that the spark plug cap 200 can be accommodated within the installation notch 111 and that the spark plug cap 200 can abut against the opposite side walls of the installation notch 111. Correspondingly, the maximum value of the installation angle A needs to ensure the stable assembly of the spark plug cap 200 within the installation notch 111, and to prevent the spark plug cap 200 from coming out of the installation notch 111 due to an excessively large installation angle A.

[0055] In this application, the specific numerical range of the installation angle A is obtained through experimental testing. The parameters and steps related to the experimental testing of the specific numerical range of the installation angle A are conventional techniques for those skilled in the art and will not be described in detail here.

[0056] In some embodiments, see Figure 1 and Figure 2 The mounting component 11 is integrated with the main body 10.

[0057] Understandably, by integrating the mounting component 11 with the main body 10, the number of connection points between the mounting component 11 and the main body 10 can be reduced, eliminating the need for connecting parts (such as bolts and welds) in traditional split structures. This avoids the risk of failure due to fatigue at the connection points and allows for a more uniform stress distribution when the mounting component 11 and the main body 10 are under load, reducing local stress concentration and effectively improving the structural strength of the cylinder head 100. Furthermore, the integrated design enables topology optimization and material integration, reducing redundant components, lowering assembly errors, and improving assembly efficiency.

[0058] 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.

[0059] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A cylinder head, characterized in that, include: The main body has a groove formed on one side surface, and a mounting hole is formed through the groove wall; The mounting component protrudes from the groove wall and is positioned close to the mounting hole; The outer edge of the mounting component is recessed inward to form a mounting notch, and the opening direction of the mounting notch intersects with the through direction of the mounting hole. When the spark plug is installed in the mounting hole, at least a portion of the spark plug cap is engaged with the mounting notch through the opening.

2. The cylinder head according to claim 1, characterized in that, The number of mounting parts is two, and the two mounting parts are respectively matched with the opposite sides of the mounting hole. Each mounting part has a recessed mounting notch, and the opposite ends of the spark plug cap are respectively engaged in the mounting notch.

3. The cylinder head according to claim 2, characterized in that, The mounting notch gradually decreases in size along its own opening towards its own bottom in a concave direction; and the two opposite walls of the mounting notch together form a mounting angle A.

4. The cylinder head according to claim 3, characterized in that, The installation angle A must meet the following condition: 10°≤A≤60°.

5. The cylinder head according to claim 4, characterized in that, In the construction of the two side walls forming the mounting angle A, the dimension of the side closer to the main body along the concave direction is greater than the dimension of the side away from the main body along the concave direction.

6. The cylinder head according to claim 1, characterized in that, The mounting component is integrally formed with the main body.

7. An engine, characterized in that, Includes the cylinder head as described in any one of claims 1 to 6.

8. The engine according to claim 7, characterized in that, The engine also includes a spark plug and a spark plug cap. The spark plug cap is fitted to one end of the spark plug, and the end of the spark plug opposite to the spark plug cap passes through the mounting hole. The two opposite ends of the spark plug cap along the first direction are respectively engaged with the two mounting parts.

9. The engine according to claim 8, characterized in that, The engine also includes a wire connected to the spark plug and configured to supply power to the spark plug.

10. A motor vehicle, characterized in that, Includes the engine as described in any one of claims 7 to 9.

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