Sealing cover structure for cylinder head of engine of mute variable-frequency generator set

Abstract

The utility model discloses an engine cylinder head sealing cover structure of a mute frequency conversion generator set, which comprises a sealing cover main body, the sealing cover main body is fixed on a cylinder head cover, and a circle of inner sealing edge corresponding to a cylinder in shape is arranged on the sealing cover main body. An upper sealing edge, a right sealing edge, a lower sealing edge and a left sealing edge are sequentially arranged on the four edges of the sealing cover body, all the sealing edges protrude outwards and are higher than the plane of the sealing cover body to form a circle of annular air channel, and cold air can enter the interior of the air cylinder head for cooling. The air-cooled engine has the advantages that the sealing cover structure is additionally arranged outside the cylinder head of the air-cooled engine, the sealing edges arranged on the sealing cover structure can be tightly attached to form sealing, the inner sealing edge and the sealing edges arranged on the periphery form the annular air channel, cold air can sequentially flow from the air inlet side of the cylinder head to the air outlet side, and the air outlet side of the air-cooled engine is communicated with the air outlet side of the air-cooled engine. Meanwhile, the LED lamp has the advantages of being firm in attachment, convenient to install, low in manufacturing cost and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of generator sets, in particular to a sealing cover structure of a cylinder head of an engine of a silent variable frequency generator set. Background Art

[0002] When the silent variable frequency generator set is working, its internal engine can convert the chemical energy released by combustion into mechanical energy, and the generator can convert mechanical energy into electrical energy to generate electricity. The engine and generator will generate a lot of heat during the working process, and the inverter itself will also generate a lot of heat during AC / DC conversion. To ensure the normal operation of the entire generator set, a good ventilation environment is required to ensure that the machine body is fully cooled.

[0003] Air-cooled engine is an engine that uses air as cooling medium. It casts some heat sinks on the outer wall of the cylinder and cylinder head, and uses a cooling fan to blow air through the surface of the heat sink at high speed to take away the heat dissipated by the engine and cool the engine. The wind loss can be reduced by adding a closed wind cover, thereby reducing the engine temperature. Similarly, as an important part of the wind energy engine, the cylinder can also be cooled by a sealed cover. Therefore, a cylinder head sealing cover structure is needed to allow cold air to flow from the intake side of the cylinder head to the exhaust side in an orderly manner. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a silent variable frequency generator engine cylinder head sealing cover structure which is simple in structure, easy to manufacture and install.

[0005] The technical scheme is as follows: a silent variable frequency generator engine cylinder head sealing cover structure, the main points of which are that it includes a sealing cover body, which is used to cover the engine cylinder head, a circle of inner sealing edges is arranged on the sealing cover body, which is used to cover the cylinder head cover and is tightly fitted with the cylinder head cover, and the circumferential edge of the sealing cover body is sequentially provided with an upper sealing edge, a right sealing edge, a lower sealing edge and a left sealing edge, all of which protrude outward and are higher than the plane of the sealing cover body, and the upper sealing edge, the right sealing edge, the lower sealing edge and the left sealing edge and the inner sealing edge form a circle of annular air ducts, which can allow cold air to enter the cylinder head circumferentially for cooling. With the above structure, the inner sealing edge can be tightly fitted with the cylinder head to form a seal, and the sealing edges arranged around the periphery are assembled with the lower air guide cover, the lower air guide, and the fan cover surrounding the periphery of the cylinder head to form a seal, and the cold air can enter the annular air duct to cool and dissipate heat for the cylinder head.

[0006] As a preferred embodiment, the upper sealing edge, the right sealing edge, the lower sealing edge and the left sealing edge are of the same height. With the above structure, the cylinder head can be sealed to ensure the tightness of the seal.

[0007] Preferably, a spark plug opening is provided in the middle of the upper edge of the sealing cover body. With the above structure, a spark plug opening is provided corresponding to the spark plug, which can effectively reduce the temperature of the spark plug and is conducive to its continuous and stable operation.

[0008] Preferably, a first screw mounting hole and a second screw mounting hole are provided on the upper edge of the sealing cover body, the first screw mounting hole and the second screw mounting hole are located on both sides of the spark plug opening, and screws are inserted into the first screw mounting hole and the second screw mounting hole for fixing. With the above structure, the sealing cover body can be fixed together with the cylinder head and the upper air guide cover to form an effective connection.

[0009] Preferably, a third screw mounting hole and a fourth screw mounting hole are provided on the lower edge of the sealing cover body, and screws are inserted through the third screw mounting hole and the fourth screw mounting hole for fixing. With the above structure, the sealing cover body can be fixed together with the cylinder head and the lower air guide cover to form an effective connection.

[0010] Preferably, the first screw mounting hole and the second screw mounting hole both protrude toward the upper side of the sealing cover body, and the third screw mounting hole and the fourth screw mounting hole both protrude toward the lower side of the sealing cover body. The above structure can cooperate with the cylinder head and the upper and lower air guide covers on the outside, and an effective connection can be formed between them to avoid falling off during use, and the screw installation is very convenient.

[0011] Preferably, all screw mounting holes are at the same height as the upper sealing edge, right sealing edge, lower sealing edge and left sealing edge on the circumferential edge of the sealing cover body. The above structure can ensure the tightness of the connection between the screw mounting holes and the surrounding sealing edges to avoid cold air leakage.

[0012] Compared with the prior art, the utility model has the following beneficial effects: a closed cover structure is added to the cylinder head of an air-cooled engine, and the sealing edge arranged on the sealing cover structure can fit tightly to form a seal, wherein the inner sealing edge and the sealing edges arranged on all sides form an annular air duct, which can make the cold air flow from the intake side of the cylinder head to the exhaust side in an orderly manner, thereby improving the heat dissipation effect, and at the same time has the characteristics of firm fitting, simple structure, easy installation, and low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a top view of the utility model;

[0015] Figure 3 It is a schematic diagram of an implementation method of the utility model. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with embodiments and drawings.

[0017] like Figure 1 and Figure 2 As shown, a sealing cover structure of a cylinder head of a silent variable frequency generator engine mainly includes a sealing cover body 1, which is used to cover the cylinder head of the engine. A circle of inner sealing edges 2 are arranged on the sealing cover body 1, which are used to cover the cylinder head cover 17 and fit tightly with the cylinder head cover 17. The circumferential edge of the sealing cover body 1 is sequentially provided with an upper sealing edge 3, a right sealing edge 4, a lower sealing edge 5 and a left sealing edge 6. All the sealing edges protrude outward and are higher than the plane of the sealing cover body 1. The upper sealing edge 3, the right sealing edge 4, the lower sealing edge 5 and the left sealing edge 6 and the inner sealing edge 2 form a circle of annular air duct 12. The annular air duct 12 can be used as a cold wind to enter the surrounding channel, and can effectively cool and dissipate heat. The four sealing edges of the upper sealing edge 3, the right sealing edge 4, the lower sealing edge 5 and the left sealing edge 6 are of the same height and can fit tightly on the cylinder head.

[0018] A spark plug opening 7 is provided in the middle of the upper edge of the sealing cover body 1, and the spark plug opening 7 is arranged corresponding to the spark plug 17 of the cylinder head. The spark plug 17 is an important ignition tool. Therefore, when the cylinder is working, the spark plug 17 at this position has a very high temperature and needs to be cooled. The spark plug opening 7 is close to the annular air duct 12. When cold air enters the annular air duct 12, the temperature of the spark plug 17 can be effectively reduced to ensure its continuous and stable operation.

[0019] A first screw mounting hole 8 and a second screw mounting hole 9 are provided on the upper edge of the sealing cover body 1. The first screw mounting hole 8 and the second screw mounting hole 9 are located on both sides of the spark plug opening 7, close to the two upper vertex corners of the sealing cover body 1. The first screw mounting hole 8 and the second screw mounting hole 9 protrude toward the upper side of the sealing cover body 1. Screws are inserted into the first screw mounting hole 8 and the second screw mounting hole 9 to fix the sealing cover body 1 on the upper air duct of the silent variable frequency generator engine; a third screw mounting hole 10 and a fourth screw mounting hole 11 are provided on the lower edge of the sealing cover body 1. The third screw mounting hole 10 and the fourth screw mounting hole 11 are equidistantly arranged on both sides of the center of the lower sealing edge 5. Both of the two screw holes protrude toward the lower side of the lower sealing edge 5. Screws are inserted into the third screw mounting hole 10 and the fourth screw mounting hole 11 to fix the sealing cover body 1 on the lower air duct of the silent variable frequency generator engine. The setting of the screw mounting holes can facilitate installation and disassembly. All screw mounting holes are consistent in height with the upper sealing edge 3, right sealing edge 4, lower sealing edge 5 and left sealing edge 6 on the circumferential edge of the sealing cover body, which can ensure the tightness of the connection between the screw mounting holes and the sealing edges on all sides, and avoid cooling air leaking from the upper and lower screw holes, causing cylinder head cooling failure, which directly affects the production performance of the cylinder.

[0020] like Figure 3 As shown, the sealing cover body 1 covers the cylinder head cover 13 of the engine cylinder head, and the sealing edges arranged around the sealing cover body 1 are assembled and sealed with the upper air guide cover 14, the lower air guide cover 15, and the fan cover 16 surrounding the cylinder head. The inner sealing edge 2 is assembled and sealed with the cylinder and fixed by screw mounting holes on the upper and lower sides. Cold air can enter the annular wind tunnel 12 from the outside to cool and dissipate heat to the cylinder, thereby improving production performance.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. A sealing cover structure for a cylinder head of a silent variable frequency generator set engine, characterized in that: The invention comprises a sealing cover body (1) for covering an engine cylinder head, an inner sealing edge (2) is arranged on the sealing cover body (1) for covering a cylinder head cover (17) and closely fitting the cylinder head cover (17), an upper sealing edge (3), a right sealing edge (4), a lower sealing edge (5) and a left sealing edge (6) are arranged in sequence on the circumferential edge of the sealing cover body (1), all of the sealing edges protrude outwards and are higher than the plane of the sealing cover body (1), and the upper sealing edge (3), the right sealing edge (4), the lower sealing edge (5) and the left sealing edge (6) and the inner sealing edge (2) form an annular air duct (12) to allow cold air to enter the cylinder head circumferentially for cooling.

2. According to the silent variable frequency generator engine cylinder head sealing cover structure of claim 1, it is characterized by: The upper sealing edge (3), the right sealing edge (4), the lower sealing edge (5) and the left sealing edge (6) are all of the same height.

3. The sealing cover structure of the cylinder head of the silent variable frequency generator set engine according to claim 1 is characterized in that: A spark plug opening (7) is provided in the middle of the upper edge of the sealing cover body (1).

4. The sealing cover structure of the cylinder head of the silent variable frequency generator set engine according to claim 3 is characterized in that: A first screw mounting hole (8) and a second screw mounting hole (9) are provided on the upper edge of the sealing cover body (1); the first screw mounting hole (8) and the second screw mounting hole (9) are located on both sides of the spark plug opening (7).

5. The sealing cover structure of the cylinder head of the engine of the silent variable frequency generator set according to claim 4 is characterized in that: A third screw mounting hole (10) and a fourth screw mounting hole (11) are provided on the lower edge of the sealing cover body (1).

6. The sealing cover structure of the cylinder head of the engine of the silent variable frequency generator set according to claim 5 is characterized in that: The first screw mounting hole (8) and the second screw mounting hole (9) both protrude toward the upper side of the sealing cover body (1), and the third screw mounting hole (10) and the fourth screw mounting hole (11) both protrude toward the lower side of the sealing cover body (1).

7. The sealing cover structure of the cylinder head of the engine of the silent variable frequency generator set according to claim 6 is characterized in that: All the screw mounting holes are at the same height as the upper sealing edge (3), the right sealing edge (4), the lower sealing edge (5) and the left sealing edge (6) on the circumferential edge of the sealing cover body (1).

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