Camshaft box, engine and vehicle

Abstract

The invention discloses a cam shaft box, an engine and a vehicle, the cam shaft box comprises an ignition coil mounting hole, the ignition coil mounting hole is used for mounting an ignition coil, the ignition coil mounting hole comprises a sealing section, and the ignition coil is matched with the inner wall of the sealing section; and the exhaust hole is formed in the side wall of the ignition coil mounting hole and located in the lower side of the sealing section, and the ignition coil mounting hole is communicated with the outside through the exhaust hole. The exhaust hole is formed in the lower side of the sealing section, exhaust does not need to pass through the sealing section, and exhaust is smoother.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and more particularly to a camshaft case, an engine and a vehicle. Background Art

[0002] In the vehicle's ignition system, the ignition coil is a conversion component that provides ignition energy for igniting the air and fuel mixture in the engine cylinder. It is made based on the principle of electromagnetic induction and can convert low voltage into high voltage electricity. The high voltage electricity is converted into high voltage electric sparks through the spark plug to ignite the combustible mixture.

[0003] As a peripheral part of the engine, the ignition coil needs to prevent external liquids from entering the engine and causing corrosion of the internal parts of the engine, and at the same time, it needs to ensure the balance of air pressure inside and outside the engine. Setting an exhaust hole on the cover plate of the upper rod of the ignition coil can play a certain degree of sealing and waterproofing role. However, the current exhaust hole often has the problem of poor exhaust. Summary of the invention

[0004] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0005] In view of the shortcomings of the prior art, a first aspect of an embodiment of the present invention provides a camshaft box, the camshaft box comprising:

[0006] An ignition coil mounting hole, the ignition coil mounting hole is used to mount an ignition coil, the ignition coil mounting hole comprises a sealing section located at an upper portion, the ignition coil cooperates with an inner wall of the sealing section;

[0007] The side wall of the ignition coil installation hole is provided with an exhaust hole, the exhaust hole is located at the lower side of the sealing section and connects the ignition coil installation hole with the outside.

[0008] In one embodiment, the top end of the ignition coil mounting hole protrudes from the upper surface of the camshaft housing to form a boss, the exhaust hole is arranged on the boss, and an outlet of the exhaust hole is communicated with the outside.

[0009] In one embodiment, a waterproof and breathable membrane is provided in the exhaust hole.

[0010] In one embodiment, the camshaft case includes a plurality of ignition coil mounting holes, and the plurality of ignition coil mounting holes are arranged in a straight line; the exhaust holes of the plurality of ignition coil mounting holes are connected to each other, and at least one of the exhaust holes is connected to the outside.

[0011] In one embodiment, the camshaft housing includes a plurality of the ignition coil mounting holes, and the plurality of the ignition coil mounting holes are arranged in a straight line;

[0012] The camshaft case is also provided with an exhaust channel, and the exhaust channel connects the exhaust holes of the plurality of ignition coil mounting holes; each of the exhaust holes is communicated with the outside through the exhaust channel.

[0013] In one embodiment, the exhaust passage is disposed inside the camshaft housing.

[0014] In one embodiment, a protruding structure is provided on the surface of the camshaft housing, the ignition coil mounting hole is opened on the surface of the camshaft housing, and the exhaust passage is arranged inside the protruding structure.

[0015] In one embodiment, a top end of the ignition coil mounting hole protrudes from an upper surface of the camshaft housing to form a boss, and the exhaust hole is disposed on the boss.

[0016] In one embodiment, the width of the ignition coil mounting hole gradually decreases from top to bottom.

[0017] Another aspect of an embodiment of the present invention provides an engine, wherein the engine comprises the camshaft case as described above.

[0018] In one embodiment, the engine further includes an ignition coil, the ignition coil includes a terminal, the terminal is inserted into the ignition coil mounting hole, a sealing ring is provided on the terminal, and the sealing ring cooperates with the inner wall of the sealing section.

[0019] Yet another aspect of an embodiment of the present invention provides a vehicle, the vehicle comprising the engine as described above.

[0020] The camshaft case, the engine and the vehicle of the embodiment of the present invention are provided with an exhaust hole at the lower side of the sealing section of the ignition coil installation hole, so that the exhaust does not need to pass through the sealing section and is smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and other purposes, features and advantages of the present invention will become more apparent by describing the embodiments of the present invention in more detail in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0022] Figure 1 A cross-sectional view of a camshaft case according to an embodiment of the present invention;

[0023] Figure 2A perspective view of a camshaft case according to an embodiment of the present invention;

[0024] Figure 3 A front view and a cross-sectional view of an ignition coil according to an embodiment of the present invention;

[0025] Figure 4 A cross-sectional view of a camshaft case according to another embodiment of the present invention;

[0026] Figure 5 The present invention is a three-dimensional diagram of a camshaft case according to another embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present application more obvious, the example embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments of the present application described in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0028] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it is apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features well known in the art are not described.

[0029] It should be understood that the present application can be implemented in different forms and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0030] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present application. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0031] In order to thoroughly understand the present application, a detailed structure will be proposed in the following description to illustrate the technical solution proposed by the present application. The optional embodiments of the present application are described in detail as follows, but in addition to these detailed descriptions, the present application may also have other implementation methods.

[0032] In order to ensure the sealing and discharge the blowby gas at the ignition coil installation hole, one implementation is to set a vent hole on the sealing ring of the ignition coil and set a vent groove on the cover plate of the ignition coil, so as to play a certain sealing and waterproof role. However, the exhaust needs to pass through the sealing ring, which is easy to affect the smoothness of the exhaust. In addition, after the accumulated water on the camshaft case cover submerges the cover plate of the ignition coil, the accumulated water will flow into the ignition coil installation hole from the vent hole. Therefore, once water accumulates, the ignition coil is easily damaged by rust.

[0033] In view of the problem of water accumulation on the camshaft case cover mentioned above, one solution is to set a drainage trough on the camshaft case cover so that the accumulated water can bypass multiple bosses from the front end to reach the drainage trough, so that after water accumulates at the top of the engine, it can be drained quickly and easily to prevent the accumulated water from entering the ignition coil installation hole and seeping into the combustion chamber. However, in this solution, when the ignition coil is not installed, the drainage trough can achieve the smooth discharge of the accumulated water at the top. However, after the ignition coil is installed, the cover plate of the ignition coil will squeeze the remaining drainage space, which may easily cause poor drainage from the rear end to the front end, or even make it impossible to drain. When the increase in the amount of accumulated water is greater than the discharge amount of the drainage trough, it will inevitably cause the water level to rise, making it very easy for the accumulated water to be sucked back into the combustion chamber from the exhaust hole of the ignition coil.

[0034] The embodiments of the present invention provide a camshaft case, an engine and a vehicle to at least partially solve the above problems. The camshaft case, the engine and the vehicle provided by the embodiments of the present invention are described below with reference to the accompanying drawings.

[0035] like Figures 1 to 5 As shown, the camshaft case 10 of the embodiment of the present invention includes: an ignition coil mounting hole 11, the ignition coil mounting hole 11 is used to install the ignition coil 20, the ignition coil mounting hole 11 includes a sealing section located at the upper part thereof, and the ignition coil 20 cooperates with the inner wall of the sealing section; the side wall of the ignition coil mounting hole 11 is provided with an exhaust hole 13, the exhaust hole 13 is located at the lower side of the sealing section, and the exhaust hole 13 connects the ignition coil mounting hole 11 with the outside, thereby maintaining the internal and external air pressure balance.

[0036] In the embodiment of the present invention, an exhaust hole 13 is provided at the lower side of the sealing section of the ignition coil mounting hole 11, and the exhaust does not need to pass through the sealing section, so the exhaust is smoother; and the sealing section can be configured to cooperate with the ignition coil 20 to seal the ignition coil mounting hole 11, thereby ensuring the sealing effect and the waterproof effect.

[0037] Exemplarily, the top of the ignition coil mounting hole 11 protrudes from the upper surface of the camshaft case 10 to form a boss 12. The ignition coil 20 includes a terminal 21 and a cover plate 22 disposed on the top of the terminal 21. The terminal 21 is inserted into the ignition coil mounting hole 11, and the cover plate 22 covers the boss 12. A sealing ring 23 is disposed near the top of the terminal 21. The sealing section is disposed at the upper part of the ignition coil mounting hole 11. The sealing ring 23 cooperates with the sealing section to seal the ignition coil mounting hole 11.

[0038] For example, Figure 3 As shown, the cover plate 22 of the ignition coil 20 adopts a flanged lip, which is interference fit with the boss 12 of the ignition coil mounting hole 11, and a sealing ring 23 is provided near the top of the terminal 21 of the ignition coil 20, and the sealing ring 23 is interference fit with the inner wall of the sealing section of the ignition coil mounting hole 11, and the two waterproof structures jointly prevent the accumulated water from entering the ignition coil mounting hole 11. The cover plate 22 and the sealing ring 23 of the embodiment of the present invention are both integrated sealing structures, and there is no need to set air holes or air grooves, thereby ensuring the full sealing of the ignition coil 20 itself.

[0039] Exemplarily, the number of the sealing rings 23 is at least two, for example Figure 1 In the example of FIG. 3 , three sealing rings are provided. At least two sealing rings 23 can further improve the sealing effect.

[0040] For example, the width of the ignition coil installation hole 11 gradually decreases from top to bottom, that is, the side wall of the ignition coil installation hole is inclined, and its longitudinal section is similar to a V-shape. The ignition coil installation hole 11 of this shape has a larger opening, which is convenient for installing the ignition coil 20.

[0041] In one embodiment, Figure 1 and Figure 2 As shown, the exhaust hole 13 is arranged on the boss 12, and the air outlet of the exhaust hole 13 is connected to the outside. In this embodiment, the position of the boss 12 is increased, so that the position of the sealing ring 23 is increased, and a layout space is reserved for the exhaust hole 13 below the sealing ring 23. The exhaust hole 13 runs through the side wall of the boss 12, one end of which is connected to the inside of the cylinder, and the other end is connected to the outside, so that the blowby gas inside the cylinder is discharged to the atmosphere to maintain the balance of air pressure inside and outside the engine.

[0042] In this embodiment, on the one hand, the blowby gas does not need to be discharged through the sealing ring 23, and the exhaust is smoother, thereby effectively preventing the ignition coil 20 from swelling and falling due to excessive gas pressure; on the other hand, the air permeable groove on the cover plate 22 of the ignition coil 20 and the air permeable hole on the sealing ring 23 are eliminated, preventing the accumulated water from entering the engine through the air permeable groove and air permeable hole of the ignition coil, thereby causing misfire vibration or ignition coil corrosion. In addition, the presence of the boss 12 can also raise the position of the ignition coil 20 and the exhaust hole 13, further preventing the accumulated water on the upper part of the camshaft case 10 from entering the engine through the exhaust hole 13, and preventing the accumulated water from being sucked back into the ignition coil mounting hole 11 and endangering the spark plug body.

[0043] Furthermore, a waterproof breathable membrane 14 is also provided in the exhaust hole 13. The waterproof breathable membrane 14 can adopt any breathable but water-tight semi-permeable membrane structure, so that the blow-by gas of the cylinder can pass through the waterproof breathable membrane 14 to the atmosphere, and at the same time, it can prevent the accumulated water on the upper part of the camshaft case 10 from entering the engine through the exhaust hole 13, and prevent the accumulated water from being sucked back into the ignition coil mounting hole 11 and endangering the spark plug body.

[0044] For example, see Figure 1 The exhaust hole 13 can adopt a two-stage design. The first exhaust hole near the inside and the second exhaust hole near the outside have different diameters. The diameter of the first exhaust hole is smaller than the diameter of the second exhaust hole. The waterproof breathable membrane 14 is arranged at the bottom of the second exhaust hole, which is conducive to fixing the position of the waterproof breathable membrane 14.

[0045] In some embodiments, the camshaft housing 10 includes a plurality of ignition coil mounting holes 11, and the plurality of ignition coil mounting holes 11 are arranged in a straight line. Exemplarily, each ignition coil mounting hole 11 is provided with at least one exhaust hole 13, and the exhaust holes 13 of the plurality of ignition coil mounting holes 11 are arranged at the same position.

[0046] In one example, if Figure 4 As shown, the exhaust holes of the plurality of ignition coil mounting holes are interconnected, and at least one exhaust hole is connected to the outside. Figure 4 In the example, each ignition coil installation hole 11 is provided with two exhaust holes 13, which are arranged opposite to each other and are both connected to the exhaust holes 13 of the adjacent ignition coil installation holes 11, so that the multiple exhaust holes are connected in series, and finally the exhaust of the multiple ignition coil installation holes 11 is uniformly discharged through the exhaust holes connected to the outside. Since most of the exhaust holes 13 are not directly connected to the outside, the waterproof effect is better.

[0047] exist Figure 4In the example of , the height of the boss 12 can be lowered so that the sealing ring 23 and the exhaust hole 13 are located below the boss, so that the multiple exhaust holes 13 can be interconnected inside the camshaft case 10. In some embodiments, the camshaft case 10 is also provided with an exhaust channel 15, and the exhaust holes 13 of the multiple ignition coil mounting holes 11 are connected to the exhaust channel 15, and exhaust is performed through the exhaust channel 15 instead of being directly connected to the outside, thereby further preventing accumulated water from entering the camshaft case 10 through the exhaust hole 13. The blowby gas from each cylinder directly enters the exhaust channel 15 and is discharged from the exhaust channel 15, and it is no longer necessary to reserve an exhaust hole on the ignition coil 20, thereby achieving full sealing of the ignition coil itself.

[0048] In one example, if Figure 5 As shown, the exhaust passage 15 is arranged on the surface of the camshaft housing 10. Specifically, a protruding structure is arranged on the surface of the camshaft housing 10, the ignition coil mounting hole is opened on the surface of the camshaft housing 10, and the exhaust passage 15 is arranged inside the protruding structure. The protruding structure can be a pipe installed or formed on the surface of the camshaft housing 10, for example Figure 5 Compared with setting the exhaust passage 15 inside the camshaft case 10, setting the exhaust passage 15 on the surface of the camshaft case 10 reduces the difficulty of processing. Exemplarily, the outlet end of the exhaust passage 15 is set at the rear end of the camshaft case 10, so that the blow-by gas is discharged from the rear end of the camshaft case 10 to the atmosphere.

[0049] When the exhaust channel 15 is arranged on the surface of the camshaft case 10, the exhaust hole 13 can be arranged on the boss 12, and the exhaust channel 15 can be arranged on one side of one or more bosses 12, so that the exhaust holes 13 of one or more ignition coil mounting holes 11 are connected to the same side of the exhaust channel 15. In this embodiment, the exhaust channel 15 is connected in parallel with the exhaust holes 13 of multiple ignition coil mounting holes 11, and the blowby gas of each ignition coil mounting hole 11 will not pass through other ignition coil mounting holes 11, but will enter the exhaust channel 15 independently, so that even if the blowby gas discharge of one cylinder is blocked, it will not affect the discharge of the blowby gas of other cylinders.

[0050] Exemplarily, the exhaust passage 15 may also be arranged at other positions of the camshaft case. For example, the exhaust passage may also be arranged inside the camshaft case, and a plurality of ignition coil mounting holes 11 may be connected in parallel inside the camshaft case.

[0051] In summary, the camshaft case of the embodiment of the present invention is provided with an exhaust hole on the lower side of the sealing section of the ignition coil mounting hole, and there is no need to provide an exhaust hole on the ignition coil, which can ensure the sealing of the ignition coil mounting hole, and the exhaust does not need to pass through the sealing section, so the exhaust is smoother.

[0052] Another aspect of the present invention provides an engine, including a camshaft case and an ignition coil as described above, wherein the camshaft case is mounted on the engine block, seals the cylinder from the top and forms a combustion chamber, and can prevent external impurities from entering the engine and prevent internal oil leakage. The ignition coil is a conversion component used to ignite the air and fuel mixture in the engine cylinder to provide ignition energy, and can convert low voltage into high voltage electricity, which is converted into high voltage electric sparks through spark plugs to ignite the combustible mixed gas.

[0053] Specifically, an ignition coil mounting hole is provided in the camshaft case for mounting the ignition coil, the ignition coil mounting hole includes a sealing section, and the ignition coil cooperates with the sealing section. An exhaust hole is provided on the side wall of the ignition coil mounting hole, the exhaust hole is located at the lower side of the sealing section, and connects the ignition coil mounting hole with the outside.

[0054] Exemplarily, the top of the ignition coil mounting hole protrudes from the upper surface of the camshaft case to form a boss. The ignition coil includes a terminal, which is inserted into the ignition coil mounting hole. A sealing ring is provided near the top of the terminal, and the sealing ring is interference-fitted with the inner wall of the sealing section of the ignition coil mounting hole. Furthermore, the ignition coil also includes a cover plate provided on the top of the terminal, and the cover plate covers the boss.

[0055] In one embodiment, the exhaust hole is arranged on the boss, and the air outlet of the exhaust hole is communicated with the outside.

[0056] In one embodiment, a waterproof and breathable membrane is disposed in the exhaust hole, and the waterproof and breathable membrane is used to prevent accumulated water from entering the ignition coil installation hole through the exhaust hole while exhausting gas.

[0057] In another embodiment, the camshaft case is further provided with an exhaust channel, the exhaust hole is connected to the exhaust channel, and the gas is exhausted through the exhaust channel, thereby further preventing the accumulated water from entering the exhaust hole. The exhaust channel can be arranged inside the camshaft case, or a protruding structure is arranged on the surface of the camshaft case, and the exhaust channel is arranged inside the protruding structure, and is connected to a plurality of ignition coil mounting holes from the side.

[0058] In another embodiment, the camshaft housing includes a plurality of ignition coil mounting holes, and the plurality of ignition coil mounting holes are arranged in a straight line; exhaust holes of the plurality of ignition coil mounting holes are interconnected, and at least one exhaust hole is connected to the outside.

[0059] The engine of the embodiment of the present invention adopts the above-mentioned camshaft case, so the smoothness of exhaust from the exhaust port can be improved.

[0060] Another aspect of the present invention provides a vehicle, comprising the engine as described above. The vehicle of the present invention also has similar advantages because it uses the engine as described above.

[0061] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely exemplary and are not intended to limit the scope of the present application thereto. Various changes and modifications may be made therein by one of ordinary skill in the art without departing from the scope and spirit of the present application. All such changes and modifications are intended to be included within the scope of the present application as required by the appended claims.

[0062] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0063] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed.

[0064] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0065] Similarly, it should be understood that in order to streamline the present application and help understand one or more of the various inventive aspects, in the description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, the method of the present application should not be interpreted as reflecting the following intention: the claimed application requires more features than the features clearly stated in each claim. More specifically, as reflected in the corresponding claims, the inventive point is that the corresponding technical problem can be solved with features less than all the features of a single disclosed embodiment. Therefore, the claims following the specific embodiment are hereby explicitly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the present application.

[0066] It will be understood by those skilled in the art that, except for mutually exclusive features, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this specification may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature that provides the same, equivalent or similar purpose.

[0067] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0068] The various component embodiments of the present application can be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It should be understood by those skilled in the art that a microprocessor or digital signal processor (DSP) can be used in practice to implement some or all functions of some modules according to the embodiments of the present application. The application can also be implemented as a device program (e.g., computer program and computer program product) for executing a part or all of the methods described herein. Such a program implementing the present application can be stored on a computer-readable medium, or can have the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.

[0069] It should be noted that the above embodiments illustrate rather than limit the present application, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation to the claims. The present application may be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In a unit claim that lists several devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names.

[0070] The above is only a specific implementation method or an explanation of a specific implementation method of the present application, and the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. The protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A camshaft box, characterized in that: The camshaft housing comprises: an ignition coil mounting hole, the ignition coil mounting hole being used to mount an ignition coil, the ignition coil mounting hole comprising a sealing section located at an upper portion, the ignition coil being engaged with an inner wall of the sealing section; The side wall of the ignition coil installation hole is provided with an exhaust hole, which is located at the lower side of the sealing section and connects the ignition coil installation hole with the outside.

2. The camshaft housing according to claim 1, characterized in that: The top end of the ignition coil mounting hole protrudes from the upper surface of the camshaft case to form a boss, the exhaust hole is arranged on the boss, and an air outlet of the exhaust hole is communicated with the outside.

3. The camshaft housing according to claim 1 or 2, characterized in that: A waterproof and breathable membrane is arranged in the exhaust hole.

4. The camshaft housing according to claim 1, wherein: The camshaft housing includes a plurality of ignition coil mounting holes, and the plurality of ignition coil mounting holes are arranged in a straight line; The exhaust holes of the plurality of ignition coil mounting holes are connected to each other, and at least one of the exhaust holes is connected to the outside.

5. The camshaft housing according to claim 1, characterized in that: The camshaft housing includes a plurality of ignition coil mounting holes, and the plurality of ignition coil mounting holes are arranged in a straight line; The camshaft case is further provided with an exhaust channel, which connects the exhaust holes of the plurality of ignition coil mounting holes; each exhaust hole is communicated with the outside through the exhaust channel.

6. The camshaft housing according to claim 5, characterized in that The exhaust passage is provided inside the camshaft housing.

7. The camshaft housing according to claim 5, characterized in that A protruding structure is provided on the surface of the camshaft case, the ignition coil mounting hole is opened on the surface of the camshaft case, and the exhaust passage is arranged inside the protruding structure.

8. The camshaft housing according to claim 7, characterized in that The top end of the ignition coil mounting hole protrudes from the upper surface of the camshaft case to form a boss, and the exhaust hole is provided on the boss.

9. The camshaft housing according to claim 1, wherein: The width of the ignition coil mounting hole gradually decreases from top to bottom.

10. An engine, characterized in that: The engine comprises the camshaft case according to any one of claims 1-9.

11. The engine according to claim 10, characterized in that The engine further comprises an ignition coil, which comprises a terminal, and the terminal is inserted into the ignition coil mounting hole. A sealing ring is provided on the terminal, and the sealing ring cooperates with the inner wall of the sealing section.

12. A vehicle, characterized in that: The vehicle comprises the engine according to claim 10 or 11.

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