Casing structure of a power generation device

Abstract

The present invention is a casing structure of a power generation device, comprising an electric energy generating device, a casing for accommodating the electric energy generating device, and an electrical panel arranged on the casing, wherein the casing is a U-shaped front casing and a U-shaped rear casing enclosed to form a closed rectangular parallelepiped structure, and the front casing and the rear casing respectively include three faces constituting the rectangular parallelepiped structure. The present invention greatly reduces the number of casings of the casing while meeting the casing closure requirements by dividing the hexahedron of the power generation device casing into two U-shaped casings that cross and splice each other, simplifies the casing structure, greatly reduces the casing manufacturing and assembly costs, and has the advantages of low cost, beautiful appearance and practical functions.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation equipment, and in particular to a casing structure of power generation equipment. Background Art

[0002] The power generation equipment of the present invention mainly includes four categories of products: generator sets driven by internal combustion engines, portable power stations with energy storage, solar photovoltaic power stations, and welding machines. The power generation equipment has a wide range of applications, such as self-contained power supply, emergency power supply, power supply in power-deficient areas, power generation, or material welding.

[0003] In order to reduce noise or enhance protection performance, various power generation equipment are usually made into a closed structure, that is, the power generation equipment is arranged in a closed casing. Figure 1 and Figure 2 It is a closed power generation equipment in the prior art, mainly composed of a casing and an electric energy generating device 11. The electric energy generating device 11 is arranged in the closed casing, and the casing is composed of a left casing 201, a right casing 202, a front casing 203, a rear casing 204 and a base 205. These five parts of the casing are assembled and assembled in a certain order to form a closed casing. Due to the large number of casings and the complex casing structure, this design has high requirements on the matching accuracy between the various parts of the casing. Usually, this kind of casing needs to be injection molded, and an injection mold must be made for each part of the casing. Since the cost of the casing injection mold is very high and the casing assembly structure is complex, the cost of manufacturing, processing and assembling this casing is relatively high.

[0004] In view of the problems existing in the above-mentioned prior art, the present invention designs a U-shaped front and rear casing for the power generation equipment. The front and rear casings are cross-jointed to form a closed casing. The casing is composed of only two shells, and each shell is an expandable structure that can be formed by sheet metal bending processing, which greatly reduces the manufacturing and assembly costs of the casing and has the advantages of low cost, beautiful appearance and practical functions. Summary of the invention

[0005] The purpose of the present invention is to overcome the problems existing in the prior art and provide a casing structure of a power generation equipment.

[0006] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0007] A casing structure of a power generation device comprises an electric energy generating device, a casing accommodating the electric energy generating device, and an electrical panel arranged on the casing, wherein the casing is a closed rectangular parallelepiped structure formed by a U-shaped front casing and a U-shaped rear casing, and the front casing and the rear casing respectively comprise three faces constituting the rectangular parallelepiped structure.

[0008] Furthermore, the rear housing includes a top surface, a bottom surface and a side surface that constitute the housing, and the front housing includes the other three side surfaces that constitute the housing.

[0009] Furthermore, the four side surfaces of the casing are respectively a front side surface, a rear side surface, a left side surface and a right side surface; the top surface and the bottom surface of the rear casing are connected to the rear side surface via a bending portion of the rear casing to form a U-shaped integrated structure; the left side and the right side surfaces of the front casing are connected to the front side surface via a bending portion of the front casing to form a U-shaped integrated structure.

[0010] Furthermore, the cross-sectional shapes of the front housing bending portion and the rear housing bending portion are composed of arc portions, curved portions and / or straight portions.

[0011] Furthermore, the front housing is provided with an electrical panel, and the electrical panel is provided with an output socket.

[0012] Furthermore, the front housing is provided with an air inlet and an air outlet.

[0013] Furthermore, a handle is provided on the top surface of the rear housing, and a foot pad is provided on the bottom surface of the rear housing.

[0014] Furthermore, a pull rod device is provided on the rear side surface of the rear housing, and a roller device is provided on the bottom surface of the rear housing.

[0015] Furthermore, the shell material of the rear casing is metal, and the shell of the rear casing is formed by bending a metal plate at a bending portion of the rear casing.

[0016] Furthermore, the shell material of the front shell is metal, and the shell of the front shell is formed by bending a metal plate at a bending portion of the front shell.

[0017] The beneficial effects of the present invention are:

[0018] The present invention divides the hexahedron of the power generation equipment casing into two U-shaped casings that cross and splice each other, thereby greatly reducing the number of casing shells while meeting the casing sealing requirements, simplifying the casing structure, and greatly reducing the casing manufacturing and assembly costs. It has the advantages of low cost, beautiful appearance and practical functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a power generation device of the prior art;

[0020] Figure 2 is an exploded diagram of a prior art power generation device;

[0021] Figure 3 is a rectangular parallelepiped outline stereogram of a power generation device according to an embodiment of the present invention;

[0022] Figure 4 is a front view of a power generation device according to an embodiment of the present invention;

[0023] Figure 5 is an AA cross-sectional view of a power generation device according to an embodiment of the present invention;

[0024] Figure 6 is a BB cross-sectional view of a power generation device according to an embodiment of the present invention;

[0025] Figure 7 is a front perspective view of a power generation device according to an embodiment of the present invention;

[0026] Figure 8 is a rear perspective view of a power generation device according to an embodiment of the present invention;

[0027] Fig. 9 is a three-dimensional diagram of a front casing of a power generation device according to an embodiment of the present invention;

[0028] Fig.10 is a three-dimensional diagram of a rear casing of a power generation device according to an embodiment of the present invention;

[0029] Fig.11 is an exploded diagram of a power generation device according to an embodiment of the present invention;

[0030] Fig.12 is a three-dimensional diagram of a power generation device according to an embodiment of the present invention equipped with rollers and a pull rod;

[0031] Fig.13 It is an exploded view of the power generation equipment with rollers and pull rods added according to the present invention.

[0032] Explanation of the numbers in the figure: 1. power generation equipment, 101. side, 1011. front side, 1012. rear side, 1013. left side, 1014. right side, 102. top surface, 103. bottom surface, 2. existing power generation equipment, 201. left side casing, 202. right side casing, 203. front side casing, 204. rear side casing, 205. base, 3. casing, 301. front casing, 3011. front casing bending part, 302. rear casing, 3021. rear casing bending part, 3022. rib, 4. air inlet, 5. air outlet, 6. electrical panel, 7. handle, 8. foot pad, 9. roller device, 10. pull rod device, 11. electric energy generating device. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0034] The power generation equipment of the present invention mainly includes the following four categories of products: a generator set driven by an internal combustion engine, a portable power station with energy storage, a solar photovoltaic power station, and a welding machine. The generator set is mainly composed of an engine, a generator and an electronic control system. The generator outputs electrical energy under the drive of the engine and can convert the chemical energy of fuel or gas into electrical energy. For a digital generator, it also includes an inverter, which can convert the medium-frequency AC output of the generator into industrial frequency AC with stable voltage at various speeds. The portable power station with energy storage mainly includes a battery, an inverter and an electronic control system, etc. The battery can be charged from the mains, solar energy or a generator. The inverter and the electronic control system can convert the DC power of the battery into AC output, and of course, various DC outputs can be added as needed. The solar photovoltaic power station uses solar panels to convert solar energy into electrical energy, and converts the DC power from the solar panels or batteries into AC output through an inverter and an electronic control system. The electric welding machine mainly includes a transformer and an electronic control system. The transformer steps down the voltage of the AC / DC power from the mains, generator or battery, and outputs low-voltage, high-current AC and / or DC power after processing by the electronic control system. The high current is used to melt the metal material for welding.

[0035] like Figures 3 to 13 As shown, the power generation equipment of the present invention is mainly composed of an electric energy generating device 11 and a casing 3, and the electric energy generating device 11 is contained in the casing 3, and the casing 3 is a closed shell. The electric energy generating device 11 described in the present invention is different according to the difference of the above four types of power generation equipment: the electric energy generating device of the generator set is mainly an engine, a generator and an electric control system; the electric energy generating device of the mobile power supply is mainly a battery, an inverter and an electric control system; the electric energy generating device of the solar photovoltaic power station is mainly an inverter and an electric control system, and of course, for the energy storage type solar power station, it also includes a storage battery; the electric energy generating device of the electric welding machine is mainly a transformer and an electric control system.

[0036] like Figures 3 to 11As shown, the housing 3 of the present invention has a rectangular parallelepiped structure with a length L, a width W and a height H, and the length L ≥ the width W. The housing 3 is approximately in the shape of a hexahedron. The length L and the width W form a top surface 102 and a bottom surface 103 at the upper and lower parts of the power generation equipment, respectively. The housing 3 of the power generation equipment of the present invention is formed by the top surface 102, the bottom surface 103 and the shell of the four side surfaces 101 of the rectangular parallelepiped structure. The side surfaces 101 of the rectangular parallelepiped structure include the following four side surfaces: the height H and the length L form a front side surface 1011 and a rear side surface 1012 at the front and rear parts of the power generation equipment, and the height H and the width W form a left side surface 1013 and a right side surface 1014 at the left and right parts of the power generation equipment. The rear side surface 1012 of the casing 3 is connected to the shells of the top surface 102 and the bottom surface 103 to form a U-shaped rear casing 302, and the shells of the front side surface 1011, the left side surface 1013 and the right side surface 1014 are connected to form a U-shaped front casing 301. The casing 3 is assembled by splicing the U-shaped rear casing 302 and the U-shaped front casing 301. After the rear housing 302 is assembled with the front housing 301, the top surface 102 of the U-shaped rear housing 302 just fills the gap at the top of the front housing 301, the bottom surface 103 of the rear housing 302 just fills the gap at the bottom of the front housing 301, the left side 1013 of the U-shaped front housing 301 just fills the gap on the left side of the rear housing 302, and the right side 1014 of the front housing 301 just fills the gap on the right side of the rear housing 302. The enclosure method of the front housing 301 and the rear housing 302 is: the U-shaped rear housing 302 and the front housing 301 are cross-assembled up and down and left and right to form a complete closed housing 3.

[0037] like Figures 5 to 10 As shown, the shells of the rear shell 302 and the front shell 301 are both U-shaped expandable structures. Specifically, the rear side surface 1012 of the rear shell 302 and the shells of the top surface 102 and the bottom surface 103 are transitionally connected to form an integrated structure through the rear shell bending portion 3021, and the front side surface 1011 of the front shell 301 and the shells of the left side 1013 and the right side 1014 are transitionally connected to form an integrated structure through the front shell bending portion 3011. The cross-sectional shapes of the rear shell bending portion 3021 and the front shell bending portion 3011 are composed of arcs, curves and / or straight lines, and are usually rounded or chamfered.

[0038] like Fig. 9 and Fig.10As shown, since the shells of the rear housing 302 and the front housing 301 are both expandable structures, when the shells of the rear housing 302 and the front housing 301 are made of metal, the U-shaped structure of the shell can be easily obtained by integrally bending and forming the metal sheet, that is, the entire shells of the rear housing 302 and the front housing 301 can be integrally formed by sheet metal processing, and the front and rear shells can be made into a U-shaped integrated structure. The specific processing of the rear housing 302 is mainly as follows: cutting the metal sheet according to the unfolded shape of the rear housing 302, and then bending the metal sheet at the corresponding positions of the two rear housing bending parts 3021 of the rear housing 302. After bending, the U-shaped structure of the rear housing 302 can be obtained. The bending shape is usually rounded or chamfered. Considering the bending cost, rounded bending is preferred. The specific processing of the front housing 301 is as follows: cutting the metal sheet according to the unfolded shape of the front housing 301, and then bending the two front housing bending parts 3011 of the front housing 301 at the corresponding positions. After bending, the U-shaped structure of the front housing 301 can be obtained. The bending shape is usually rounded or chamfered. Considering the bending cost, rounded bending is preferred. Since the rear housing 302 and the front housing 301 are both integrated sheet metal parts, the rear housing 302 and the front housing 301 can be sprayed in different colors. The rear housing 302 and the front housing 301 of different colors are combined into a closed housing 3, which is more beautiful. For example, the rear housing 302 is blue and the front housing 301 is white.

[0039] It should be pointed out here that although the shells of the rear shell 302 and the front shell 301 of the present embodiment are preferably U-shaped one-piece bent structures of sheet metal, the present invention does not limit whether the whole material is integrally formed. The rear shell 302 and the front shell 301 can also be divided into multiple shells as needed, and the multiple shells can also be connected into a U-shaped one-piece structure by welding, riveting or bolts.

[0040] like Figures 4 to 7 As shown, the housing 3 is also provided with an electrical panel 6. In this embodiment, the electrical panel 6 is provided on the front side 1011 of the front housing 301. The electrical panel 6 includes various output sockets, terminals, indicator lights, control switches, etc. The output sockets are connected to the power generation device. The power generation device outputs power through the electrical panel 6. The charging port of the engine starter battery can also be provided on the electrical panel 6. For a mobile power source, the housing 3 is also provided with a charging port, which can charge the energy storage battery in the mobile power source. The charging port can also be provided on the electrical panel 6. For a fuel generator set, the housing 3 of the generator set also includes a fuel tank. The fuel tank cap of the fuel tank is exposed on the housing 3. After opening the fuel tank cap, fuel can be added through the fuel tank port.

[0041] like Figure 4 and Figure 5As shown, the power generation equipment of the present invention is arranged in a closed casing 3. Since the electric energy generating device 11 in the power generation equipment generates heat during operation, it is necessary to set a vent on the casing 3 for heat dissipation. In this embodiment, an air inlet 4 of the power generation equipment is arranged on the right side 1014 of the front casing 301, and an air outlet 5 is arranged on the left side 1013 of the front casing 301. External cold air enters the casing 3 from the air inlet 4 to cool the electric energy generating device 11 or its cooler, and the heated air is discharged from the casing 3 through the air outlet 5 after cooling. Corresponding protective covers are arranged at the air inlet 4 and the air outlet 5 of the power generation equipment to prevent foreign matter or liquid from entering the casing 3 through the vent, and the protective cover is connected to the casing 3 by bolts.

[0042] like Figure 4 , Figure 6 and Fig.10 As shown, a handle 7 is provided on the housing 3. The handle 7 of this embodiment is provided on the top surface 102 of the housing 3. The operator can lift the power generation device through the handle 7. The handle 7 is connected to the top of the rear housing 302. In order to increase the connection strength, a grooved steel plate is provided on the inner side of the top of the rear housing 302. The handle 7, the rear housing 302 and the grooved steel plate are connected by bolts. A foot pad 8 is provided on the bottom surface 103 of the housing 3. The foot pad 8 is connected to the bottom of the rear housing 302. The foot pad 8 is usually made of rubber material, and its bottom surface can contact the ground. All the weight of the power generation device is supported by the foot pad 8. In order to increase the connection strength, a grooved steel plate is provided on the inner side of the bottom of the rear housing 302. The foot pad 8, the rear housing 302 and the grooved steel plate are connected by bolts. A cover plate is also provided on the bottom surface 103 of the rear housing 302. The cover plate can be opened to maintain the power generation device 11.

[0043] like Fig.12 and Fig.13As shown, a pull-out rod device 10 can be provided on the rear side surface 1012 of the rear housing 302, and a roller device 9 is provided on the bottom surface 103, and the axial direction of the roller is consistent with the length L direction of the power generation equipment, so as to facilitate the movement of the power generation equipment and increase the portability of the power generation equipment. The advantage of such a design is that since a rear housing bending portion 3021 is provided at the bottom of the rear housing 302, the rear housing bending portion 3021 can eliminate the edge between the rear side surface 1012 and the bottom surface 103, and the rear housing bending portion 3021 can be made into a large fillet or chamfer as needed. When the housing 3 is tilted toward the rear side surface 1012 and the power generation equipment is moved by the roller, the large fillet or chamfer here increases the distance between the housing 3 and the ground, which can prevent the housing 3 from scratching the ground and touching the protrusions on the ground. In order to facilitate the tipping and placement of the power generating device, four feet can be provided on the rear side surface 1012 of the rear housing 302, which can be used to contact the ground to support the entire power generating device when the power generating device is tipped over. In order to facilitate lifting a heavier power generating device, two additional handles can be provided on the top of the rear housing 302, which are arranged perpendicular to the handle 7. The two handles are separated on both sides of the handle 7, so that two people can lift the power generating device in cooperation.

[0044] like Figure 5 , Figure 6 , Fig. 9 and Fig.10 As shown, the bottom of the electric energy generating device 11 is connected to the bottom surface 103 of the rear casing 302. In order to fix the upper part of the electric energy generating device 11, a supporting structure is provided on the front casing 301 and the rear casing 302 inside the casing 3. When the upper part of the electric energy generating device 11 bends and tilts, the supporting structure contacts it through rubber parts to limit and fix it.

[0045] like Figure 6 and Fig.10 As shown, a rib 3022 is provided at the joint between the front housing 301 and the rear housing 302, a nut is welded on the rib 3022, and the rib 3022 is welded to the rear housing 302, and the height direction of the rib 3022 is kept perpendicular to the surface on the rear housing 302 at the location, and the height direction of the rib 3022 is always parallel to the joint surface on the front housing 301 at the location, and since the axis of the nut is perpendicular to the height direction of the rib 3022, the screw can be connected to the corresponding nut on the rib 3022 by passing through the through hole on the front housing 301, and the front housing 301 and the rear housing 302 can be connected together by setting a plurality of screws. Since the edge joints of the front housing 301 and the rear housing 302 are both provided with complete ribs 3022, the ribs 3022 welded to the rear housing 302 can increase the structural strength and rigidity of the rear housing 302, and prevent the rear housing 302 from deforming when subjected to force.

[0046] It should be pointed out that the key point of the casing structure of the present invention is that the casing 3 is composed of two shells, the rear casing 302 and the front casing 301, and its characteristic is that the rear casing 302 and the front casing 301 are both U-shaped shells, especially the rear casing 302 is an integrated U-shaped shell.

[0047] In summary, the present invention divides the hexahedron of the power generation equipment casing into two U-shaped shells that cross and splice each other, thereby greatly reducing the number of casing shells while meeting the casing sealing requirements, simplifying the casing structure, and greatly reducing the casing manufacturing and assembly costs. At the same time, the overall appearance design of the casing is beautiful, generous and practical, and has obvious technical advantages.

[0048] In addition, it should be noted that although the present invention defines a length L, a width W and a height H for the casing for the convenience of describing the casing structure, and artificially specifies the top, bottom, front, back, left and right directions for each part of the casing, they are only used to distinguish the various components, elements, steps, etc. in the specification, rather than to represent the logical relationship or sequential relationship between the various components, elements, steps, etc., and do not constitute a limitation of the present invention.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A casing structure of a power generation device, comprising an electric energy generating device (11), a casing (3) accommodating the electric energy generating device (11), and an electrical panel (6) arranged on the casing (3), characterized in that: The housing (3) is a closed rectangular parallelepiped structure formed by a front housing (301) of a U-shaped structure and a rear housing (302) of a U-shaped structure, and the front housing (301) and the rear housing (302) respectively include three surfaces constituting the rectangular parallelepiped structure; The rear housing (302) comprises a top surface (102), a bottom surface (103) and a side surface (101) constituting the housing (3); and the front housing (301) comprises another three side surfaces (101) constituting the housing (3); The four side surfaces (101) of the housing (3) are respectively a front side surface (1011), a rear side surface (1012), a left side surface (1013) and a right side surface (1014); the top surface (102) and the bottom surface (103) of the rear housing (302) are connected to the rear side surface (1012) via a rear housing bending portion (3021) to form a U-shaped integrated structure; the left side surface (1013) and the right side surface (1014) of the front housing (301) are connected to the front side surface (1011) via a front housing bending portion (3011) to form a U-shaped integrated structure.

2. The casing structure of the power generation equipment according to claim 1, characterized in that: The cross-sectional shapes of the front housing bending portion (3011) and the rear housing bending portion (3021) are composed of an arc portion, a curved portion and / or a straight portion.

3. The casing structure of the power generation equipment according to claim 1, characterized in that: An electrical panel (6) is provided on the front housing (301), and an output socket is provided on the electrical panel (6).

4. The casing structure of the power generation equipment according to claim 1, characterized in that: The front housing (301) is provided with an air inlet (4) and an air outlet (5).

5. The casing structure of the power generation equipment according to claim 1, characterized in that: A handle (7) is provided on the top surface (102) of the rear housing (302), and a foot pad (8) is provided on the bottom surface (103) of the rear housing (302).

6. The casing structure of the power generation equipment according to claim 1, characterized in that: A pull rod device (10) is provided on the rear side surface (1012) of the rear housing (302), and a roller device (9) is provided on the bottom surface (103) of the rear housing (302).

7. The casing structure of the power generation equipment according to claim 1, characterized in that: The shell material of the rear shell (302) is metal, and the shell of the rear shell (302) is formed by bending a metal plate at a rear shell bending portion (3021).

8. The casing structure of the power generation equipment according to claim 1, characterized in that: The shell material of the front shell (301) is metal, and the shell of the front shell (301) is formed by bending a metal plate at a front shell bending portion (3011).

Images