Silent frequency conversion generator

Abstract

The present invention discloses a silent variable frequency generator, including an engine, an oil tank, a generator casing, casters and a foot support base, wherein the generator casing is composed of a plurality of casings including an upper cover, the engine and the oil tank are both arranged in the generator casing, and the oil tank is located above the engine, the two casters are arranged at the rear side of the bottom of the generator casing, and are respectively located at the left and right sides of the generator casing, the two foot support bases are arranged at the front side of the bottom of the generator casing, and are arranged at intervals on the left and right, and also include a support frame, which is arranged between the generator casing and the engine to support the weight of the entire generator. For a high-power silent variable frequency generator, a support frame structure is added between the generator casing and the engine to make the entire structure more reasonable and convenient for maintenance.

Description

Technical Field

[0001] The invention belongs to the technical field of generators, and in particular relates to a silent variable frequency generator. Background Art

[0002] With the widespread use of various electrical appliances, people's demand for high-power silent variable-frequency generators is gradually increasing. If the output power of the silent variable-frequency generator is to be large, the engine displacement also needs to be increased. However, as the engine displacement increases, the weight of the engine will also increase.

[0003] Existing silent variable frequency generators mainly use a generator casing to wrap the engine, fuel tank, inverter and auxiliary parts fixed inside. For high-power silent variable frequency generators, casters are also provided at the bottom of the generator casing for easy movement.

[0004] However, this structure has two disadvantages in high-power silent variable-frequency generators: first, the generator casing needs to support the weight of the entire engine, which places high requirements on the strength of the generator casing, increases the difficulty of processing the generator casing, and the connection strength between the generator casings needs to be strong enough, otherwise the generator casing is prone to fall off during movement; second, during maintenance, if some components (muffler, air filter or inverter, etc.) are damaged, the entire generator casing needs to be disassembled, which makes maintenance troublesome. Summary of the invention

[0005] The present invention intends to provide a silent variable frequency generator, which adds a supporting skeleton structure between the generator casing and the engine to better support the entire generator.

[0006] To this end, the technical solution adopted by the present invention is: a silent variable frequency generator, including an engine, a fuel tank, a generator casing, casters and a foot support seat, the generator casing is composed of multiple shells including an upper cover, the engine and the fuel tank are both arranged in the generator casing, and the fuel tank is located above the engine, the two casters are arranged on the rear side of the bottom of the generator casing, and are respectively located on the left and right sides of the generator casing, the two foot support seats are arranged on the front side of the bottom of the generator casing, and are arranged at intervals on the left and right, and also include a supporting frame, the supporting frame includes a fuel tank frame, a bottom frame, a first frame, a second frame, a third frame and a fourth frame, the first frame, the second frame, the third frame and the fourth frame are vertically arranged on the bottom frame in a rectangular shape, the fuel tank frame is arranged above the bottom frame, and is connected to the first frame, the second frame, the third frame and the fourth frame, the bottom frame is arranged below the generator casing, the first frame, the second frame, the third frame and the fourth frame are all arranged between the engine and the generator casing, and the fuel tank frame is arranged between the fuel tank and the engine.

[0007] As a preferred embodiment of the above scheme, the bottom frame includes a main bottom frame and a connecting frame, two main bottom frames are arranged at intervals left and right, and two connecting frames are arranged at intervals front and back between the main bottom frames. A mounting block for installing a foot support seat is arranged at the bottom of the front end of the main bottom frame, and bolts for installing the first frame, the second frame, the third frame, and the fourth frame are arranged at the front and rear ends of the main bottom frame, so that the bottom frame has sufficient strength to support the weight of the entire generator.

[0008] More preferably, the fuel tank frame includes a fuel tank mounting frame and a fuel tank support frame, the two fuel tank mounting frames are spaced apart in front and back and are respectively disposed between the first frame and the second frame, the third frame and the fourth frame, the two fuel tank support frames are spaced apart in left and right and are respectively disposed between the first frame and the third frame, the second frame and the fourth frame, the cross section of the fuel tank support frame is "7" shaped, the fuel tank is mounted on the fuel tank mounting frame and just pressed on the fuel tank support frame. The composition of the fuel tank frame can better support the fuel tank, so that the fuel tank is not close to the engine, and the temperature of the gasoline in the fuel tank is prevented from being too high.

[0009] Further preferably, an oil collecting cover is provided on the upper cover, a mounting hole is provided on the oil collecting cover, an oil filling hole extending from the oil filling port of the oil supply tank is provided on the upper cover, the oil collecting cover is mounted on the oil filling hole through the mounting hole, and extends out of the upper cover, the extended portion of the oil collecting cover gradually tilts downward, the oil collecting cover is provided with an upward flange in the circumferential direction, and oil collecting ports are left at intervals on the flange at the extended end, a circle of arc protrusions with notches is provided on the oil collecting cover around the mounting hole, and the notch faces the direction in which the oil collecting cover extends out of the upper cover. The provision of the oil collecting cover facilitates the collection of gasoline splashed when gasoline is added, and prevents gasoline from leaking into the generator and causing safety accidents.

[0010] It is further preferred that the upper cover is also provided with an armrest and a pull-out handle assembly, and armrest holes are provided at intervals on the left and right sides of the rear side of the upper cover, and the armrest is installed on the third frame and the fourth frame through the armrest holes, and handle holes are provided at intervals on the left and right sides of the front side of the upper cover, and the pull-out handle assembly is provided below the upper cover after passing through the handle holes. When the armrest and the pull-out handle assembly are used at the same time, the engine can be lifted, and when the pull-out handle assembly is used, the generator can be pulled and dragged away. When transporting the generator, it is only necessary to lift the armrest and the pull-out handle assembly at the same time. When dragging the generator, it is only necessary to pull out the pull-out handle assembly and press it down, and the entire generator can be dragged away, which is convenient for operation.

[0011] Further preferably, both the front and rear sides of the upper cover are lower than the middle part. Baffles are provided on the left and right end faces of the front and rear sides of the upper cover, and the baffles on the same side are arranged oppositely. The armrest holes are provided on the rear baffle, and mounting posts are provided outside the baffles. The upper ends of the first skeleton, the second skeleton, the third skeleton, and the fourth skeleton are mounted on the mounting posts. The structure of the upper cover facilitates the overall aesthetics and at the same time mounts the upper cover on the support skeleton to prevent the upper cover from falling off during transportation.

[0012] Further preferably, the support skeleton further includes a handle skeleton. The handle skeleton is arranged between the first skeleton and the second skeleton and is located above the fuel tank skeleton. The pull handle assembly passes through the upper cover and the handle skeleton from front to back in sequence. Connecting the pull handle assembly to the support skeleton through the handle skeleton makes it convenient to lift one end of the generator when the generator is moved.

[0013] Further preferably, the cross-sections of both the main bottom skeleton and the connecting frame are in an inverted "U" shape, which reduces the weight of the bottom skeleton while meeting the strength requirements.

[0014] Further preferably, the bottoms of the third skeleton and the fourth skeleton are further provided with axles for installing casters, saving the process of installing axles separately.

[0015] Further preferably, the first skeleton, the second skeleton, the third skeleton, and the fourth skeleton are provided with weight-reducing holes, which facilitate weight reduction while meeting the strength requirements.

[0016] The beneficial effects of the present invention: Compared with the traditional setting of directly installing the generator housing on the engine, a support skeleton structure is added between the generator housing and the engine, making the whole structure more reasonable; the weight of the entire generator is borne by the support skeleton, which can reduce the strength requirements of the generator housing and facilitate the processing of the generator housing; during maintenance, due to the support skeleton, only the corresponding generator outer shell needs to be disassembled for maintenance, which is convenient for maintenance; a separate fuel tank skeleton is provided to increase the distance between the fuel tank and the engine, preventing safety accidents caused by excessive temperature of the gasoline in the fuel tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention.

[0018] Figure 2 is a schematic structure of the present invention Figure 2 (Removing the generator housing and the upper cover on the left and right sides and the bottom).

[0019] Figure 3 is a schematic structural diagram of the support skeleton.

[0020] Figure 4 is a schematic structural diagram of the bottom skeleton.

[0021] Figure 5 It is a structural diagram of the fuel tank skeleton.

[0022] Figure 6 Schematic diagram of the structure of the upper cover after installation.

[0023] Figure 7 It is a structural schematic diagram of the oil collecting cover.

[0024] Figure 8 It is a schematic diagram of the structure of the upper cover. DETAILED DESCRIPTION

[0025] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0026] like Figure 1-Figure 8 As shown, a silent variable frequency generator is mainly composed of an engine, a fuel tank 7, a generator casing, casters 8 and a foot support base 9. The generator casing is composed of multiple shells including an upper cover 10. The engine and the fuel tank 7 are both arranged in the generator casing, and the fuel tank 7 is located above the engine. Two casters 8 are arranged on the rear side of the bottom of the generator casing and are respectively located on the left and right sides of the generator casing. Two foot support bases 9 are arranged on the front side of the bottom of the generator casing and are arranged at intervals on the left and right sides.

[0027] It also includes a supporting frame, which includes a fuel tank frame 1, a bottom frame 2, a first frame 3, a second frame 4, a third frame 5 and a fourth frame 6. The first frame 3, the second frame 4, the third frame 5 and the fourth frame 6 are vertically arranged on the bottom frame 2 in a rectangular shape. The fuel tank frame 1 is arranged above the bottom frame 2 and is connected to the first frame 3, the second frame 4, the third frame 5 and the fourth frame 6. The bottom frame 2 is arranged below the generator casing. The first frame 3, the second frame 4, the third frame 5 and the fourth frame 6 are all arranged between the engine and the generator casing. The fuel tank frame 1 is arranged between the fuel tank 7 and the engine.

[0028] Preferably, the bottom frame 2 is supported by a main bottom frame 2a and a connecting frame 2b, the two main bottom frames 2a are spaced apart left and right, the two connecting frames 2b are spaced apart front and back between the main bottom frames 2a, a mounting block a for mounting a foot support seat 9 is provided at the bottom of the front end of the main bottom frame 2a, and bolts for mounting a first frame 3, a second frame 4, a third frame 5, and a fourth frame 6 are provided at the front and rear ends of the main bottom frame 2a, so that the bottom frame 2 has sufficient strength to support the weight of the entire generator.

[0029] Preferably, the fuel tank frame 1 is composed of a fuel tank mounting frame 1a and a fuel tank support frame 1b. The two fuel tank mounting frames 1a are arranged at intervals in front and back, and are respectively arranged between the first frame 3 and the second frame 4, and the third frame 5 and the fourth frame 6. The two fuel tank support frames 1b are arranged at intervals in the left and right, and are respectively arranged between the first frame 3 and the third frame 5, and the second frame 4 and the fourth frame 6. The cross section of the fuel tank support frame 1b is in the shape of "7". The fuel tank 7 is installed on the fuel tank mounting frame 1a and just presses on the fuel tank support frame 1b. The composition of the fuel tank frame 1 can better support the fuel tank 7, so that the fuel tank 7 is not close to the engine, and the temperature of the gasoline in the fuel tank 7 is prevented from being too high.

[0030] Preferably, an oil collecting cover plate 11 is provided on the upper cover 10, and a mounting hole 11a is provided on the oil collecting cover plate 11. The upper cover 10 is provided with an oil filling hole 10a extending from the oil filling port 7a of the oil supply tank. The oil collecting cover plate 11 is mounted on the oil filling hole 10a through the mounting hole 11a and extends out of the upper cover 10. The extended portion of the oil collecting cover plate 11 gradually tilts downward. The oil collecting cover plate 11 is provided with an upward flange 11b in the circumferential direction, and oil collecting ports 11c are left and right at intervals on the flange 11b at the extended end. The oil collecting cover plate 11 is provided with a circle of arc protrusions 11d with a notch b around the mounting hole 11a, and the notch b faces the direction in which the oil collecting cover plate 11 extends out of the upper cover 10. The provision of the oil collecting cover plate 11 facilitates the collection of gasoline splashed when gasoline is added, and prevents gasoline from leaking into the generator and causing safety accidents.

[0031] Preferably, the upper cover 10 is also provided with an armrest 12 and a pull-out handle assembly 13. The upper cover 10 has armrest holes 10b arranged at intervals on the left and right sides of the rear side. The armrest 12 passes through the armrest holes 10b and is installed on the third frame 5 and the fourth frame 6. The upper cover 10 has handle holes 10c arranged at intervals on the left and right sides of the front side. The pull-out handle assembly 13 passes through the handle holes 10c and is arranged below the upper cover 10. When the armrest 12 and the pull-out handle assembly 13 are used at the same time, the engine can be lifted. When the pull-out handle assembly 13 is used, the generator can be pulled and dragged away. When transporting the generator, it is only necessary to lift the armrest 12 and the pull-out handle assembly 13 at the same time. When dragging the generator, it is only necessary to pull out the pull-out handle assembly 13 and press it downward to drag the entire generator away, which is convenient for operation.

[0032] Preferably, the front and rear sides of the upper cover 10 are lower than the middle part, baffles 10d are provided on the left and right end surfaces of the front and rear sides of the upper cover 10, and the baffles 10d on the same side are arranged oppositely, the handrail hole 10b is arranged on the baffle 10d on the rear side, and a mounting column c is arranged outside the baffle 10d, and the upper ends of the first frame 3, the second frame 4, the third frame 5, and the fourth frame 6 are mounted on the mounting column c. The structural setting of the upper cover 10 facilitates the overall beauty, and the upper cover 10 is installed on the supporting frame to prevent the upper cover 10 from falling off during transportation.

[0033] Preferably, the support frame further includes a handle frame 14 disposed between the first frame 3 and the second frame 4 and above the fuel tank frame 1. The pull handle assembly 13 passes through the upper cover 10 and the handle frame 14 in sequence from front to back. Connecting the pull handle assembly 13 to the support frame through the handle frame 14 facilitates lifting one end of the generator when the generator is moved.

[0034] Preferably, the cross-sections of the bottom frame 2a and the connecting frame 2b are both in a "冂" shape, which reduces the weight of the bottom frame 2 while meeting the strength requirements.

[0035] Preferably, a wheel axle d for installing the casters 8 is further provided at the bottom of the third frame 5 and the fourth frame 6, saving the process of separately installing the wheel axle.

[0036] Preferably, weight-reducing holes e are provided on the first frame 3, the second frame 4, the third frame 5, and the fourth frame 6, which facilitates weight reduction while meeting the strength requirements.

Claims

1. A silent variable frequency generator, comprising an engine, an oil tank (7), a generator casing, casters (8) and a foot support base (9), wherein the generator casing is composed of a plurality of casings including an upper cover (10), the engine and the oil tank (7) are both arranged in the generator casing, and the oil tank (7) is located above the engine, the two casters (8) are arranged at the rear side of the bottom of the generator casing and are respectively located on the left and right sides of the generator casing, and the two foot support bases (9) are arranged at the front side of the bottom of the generator casing and are arranged at intervals on the left and right sides, characterized in that: The invention also comprises a supporting frame, wherein the supporting frame comprises a fuel tank frame (1), a bottom frame (2), a first frame (3), a second frame (4), a third frame (5) and a fourth frame (6); the first frame (3), the second frame (4), the third frame (5) and the fourth frame (6) are arranged vertically on the bottom frame (2) in a rectangular shape; the fuel tank frame (1) is arranged above the bottom frame (2) and is connected to the first frame (3), the second frame (4), the third frame (5) and the fourth frame (6); the bottom frame (2) is arranged below the generator casing; the first frame (3), the second frame (4), the third frame (5) and the fourth frame (6) are all arranged between the engine and the generator casing; and the fuel tank frame (1) is arranged between the fuel tank (7) and the engine; The bottom frame (2) comprises a main bottom frame (2a) and a connecting frame (2b), wherein two main bottom frames (2a) are arranged at intervals on the left and right, and two connecting frames (2b) are arranged at intervals on the front and back between the main bottom frames (2a), and a mounting block (a) for mounting a foot support seat (9) is arranged at the bottom of the front end of the main bottom frame (2a), and bolts for mounting a first frame (3), a second frame (4), a third frame (5), and a fourth frame (6) are arranged at the front and rear ends of the main bottom frame (2a); The fuel tank frame (1) comprises a fuel tank mounting frame (1a) and a fuel tank support frame (1b); the two fuel tank mounting frames (1a) are arranged at intervals in front and back and are respectively arranged between the first frame (3) and the second frame (4), and between the third frame (5) and the fourth frame (6); the two fuel tank support frames (1b) are arranged at intervals in left and right and are respectively arranged between the first frame (3) and the third frame (5), and between the second frame (4) and the fourth frame (6); the cross section of the fuel tank support frame (1b) is in the shape of a "7", and the fuel tank (7) is mounted on the fuel tank mounting frame (1a) and is just pressed on the fuel tank support frame (1b).

2. The silent variable frequency generator according to claim 1, characterized in that: An oil collecting cover plate (11) is arranged on the upper cover (10), and a mounting hole (11a) is arranged on the oil collecting cover plate (11). The upper cover (10) is provided with an oil filling hole (10a) extending from the oil filling port (7a) of the oil supply tank. The oil collecting cover plate (11) is mounted on the oil filling hole (10a) through the mounting hole (11a) and extends out of the upper cover (10). The extending portion of the oil collecting cover plate (11) gradually tilts downward. The oil collecting cover plate (11) is provided with an upward flange (11b) in the circumferential direction, and oil collecting ports (11c) are left at intervals on the left and right of the flange (11b) at the extending end. The oil collecting cover plate (11) is provided with a circle of arc protrusions (11d) with notches (b) around the mounting hole (11a), and the notches (b) face the direction in which the oil collecting cover plate (11) extends out of the upper cover (10).

3. The silent variable frequency generator according to claim 1, characterized in that: An armrest (12) and a pull-out handle assembly (13) are further provided on the upper cover (10). Armrest holes (10b) are provided at left and right intervals on the rear side of the upper cover (10). The armrest (12) passes through the armrest holes (10b) and is installed on the third skeleton (5) and the fourth skeleton (6). Handle holes (10c) are provided at left and right intervals on the front side of the upper cover (10). The pull-out handle assembly (13) passes through the handle holes (10c) and is provided below the upper cover (10). When the armrest (12) and the pull-out handle assembly (13) are used simultaneously, the engine can be lifted. When the pull-out handle assembly (13) is used, the generator can be pulled and towed away.

4. The silent variable frequency generator according to claim 3, characterized in that: The front and rear sides of the upper cover (10) are lower than the middle part. Baffles (10d) are provided on the left and right end faces of the front and rear sides of the upper cover (10), and the baffles (10d) on the same side are arranged oppositely. The armrest holes (10b) are provided on the rear baffles (10d). Mounting posts (c) are provided outside the baffles (10d). The upper ends of the first skeleton (3), the second skeleton (4), the third skeleton (5), and the fourth skeleton (6) are mounted on the mounting posts (c).

5. The silent variable frequency generator according to claim 3 or 4, characterized in that: The support skeleton further includes a handle skeleton (14). The handle skeleton (14) is provided between the first skeleton (3) and the second skeleton (4) and is located above the fuel tank skeleton (1). The pull-out handle assembly (13) passes through the upper cover (10) and the handle skeleton (14) in sequence from front to back.

6. The silent variable frequency generator according to claim 1, characterized in that: The cross-sections of the main bottom skeleton (2a) and the connecting frame (2b) are both in the shape of "冂".

7. The silent variable frequency generator according to claim 1, characterized in that: Axles (d) for installing casters (8) are further provided at the bottoms of the third skeleton (5) and the fourth skeleton (6).

8. The silent variable frequency generator according to claim 1, characterized in that: Weight-reducing holes (e) are provided on the first skeleton (3), the second skeleton (4), the third skeleton (5), and the fourth skeleton (6).

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