A reinforced structure of a portable power station

Abstract

The present invention is a reinforced structure of a portable power station, comprising a housing, and an electric energy generating device contained in the housing, wherein the bottom of the housing is formed by a base, a bottom supporting foot platform is provided at the bottom of the base, a bracket is provided inside the housing, and the electric energy generating device is connected to the base and / or the bottom supporting foot platform through the bracket. The present invention greatly increases the structural strength of a power station having a plastic housing with less metal material by providing a metal bracket connected to the outer foot platform and handle of the housing inside the housing, and has the advantages of light weight, high strength and low cost.

Description

Technical Field

[0001] The present invention relates to the technical field of portable power stations, and relates to a portable energy storage power source (MobilePower) with a built-in storage battery, or various portable generator sets, and in particular to an inverter generator set (Inverter generator), and specifically to an enhanced structure of a portable power station. Background Art

[0002] Portable power stations mainly include two categories of products: energy storage power supplies and generator sets. The energy storage power supply has built-in batteries, inverters and electronic control systems. The batteries can be charged from the mains, solar energy or generators. The inverter can convert the DC power of the battery into AC power for various electrical appliances. Of course, DC output interfaces of various voltages can also be configured. The generator set is mainly composed of an engine, a generator and an electronic control system. It can convert the chemical energy of the fuel into electrical energy and has multiple output interfaces of AC and DC. Portable power stations have a wide range of applications, such as: home or unit backup power supply, field operations, emergency power supply, disaster relief, outdoor life and travel, yacht and vehicle self-contained power supply, mobile communication base stations and many other occasions.

[0003] In order to reduce the weight of the power station and improve portability, the casing of the portable power station is usually made of plastic or other materials with low density. The casing is light, but the strength is poor. The weight of a commonly used portable generator of about 2kW is generally more than 20kg. If it is a 2kW portable energy storage power supply with a built-in lead-acid battery, the weight may reach more than 40kg. At this time, the casing strength of the portable power station will be difficult to bear its own weight. The present invention designs a metal skeleton support structure for the portable power station, which greatly increases the structural strength of the portable power station with less metal material, meets the requirements of the mobile power station for the structural strength of the whole machine when working, transporting, laying down and storing, and has the advantages of light weight, high strength and low cost. Summary of the invention

[0004] The object of the present invention is to overcome the problems existing in the prior art and provide a reinforced structure of a portable power station.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] A reinforced structure of a portable power station comprises a casing and an electric energy generating device accommodated in the casing, wherein the bottom of the casing is formed by a base, a bottom supporting leg is provided at the bottom of the base, a bracket is provided inside the casing, and the electric energy generating device is connected to the base and / or the bottom supporting leg via the bracket.

[0007] Furthermore, a handle device is provided outside the housing, and the electric energy generating device and the handle device are connected via a bracket.

[0008] Furthermore, the bracket is composed of an upper bracket, a lower bracket, connecting screws and a liner. The upper bracket and the lower bracket are connected by connecting screws and the liner. The connecting screws pass through corresponding mounting holes on the upper bracket and pass through the liner to be connected to nuts on the lower bracket. The two end faces of the liner are respectively fitted with matching surfaces on the upper bracket and the lower bracket to play a positioning and supporting role, forming a metal skeleton.

[0009] Furthermore, the electric energy generating device is connected to the bottom supporting platform via a lower bracket, the handle device is connected to the upper bracket, and the lower bracket is connected to the base and / or the bottom supporting platform via a bottom supporting footrest.

[0010] Furthermore, the bottom supporting foot platform and the bottom supporting frame are coaxially connected at the upper and lower parts via threaded fasteners.

[0011] Furthermore, side support feet are provided on the sides of the casing, and the bracket is connected to the casing and / or the side support feet.

[0012] Furthermore, the side supporting foot is composed of an upper supporting footframe, an upper supporting foot platform, a lower supporting footframe and a lower supporting foot platform, the upper supporting foot platform and the lower supporting foot platform protrude from the outer surface of the casing, the upper supporting foot platform and the upper bracket are connected via the upper supporting footframe, and the lower supporting foot platform and the lower bracket are connected via the lower supporting footframe.

[0013] Furthermore, the electric energy generating device includes a battery, an inverter and an electric control system, and the battery is charged by AC power, solar energy or a generator. The inverter and the electric control system process the DC power of the battery and output AC power and / or DC power through an output panel.

[0014] Furthermore, the electric energy generating device includes an engine, a generator and an electronic control system. The generator outputs electric energy when driven by the engine, and outputs alternating current and / or direct current through an output panel under the control of the electronic control system.

[0015] Furthermore, the housing and its base are made of non-metallic materials, and the bracket is made of metallic material.

[0016] The beneficial effects of the present invention are:

[0017] The present invention greatly increases the structural strength of the power station with a plastic casing with less metal material by arranging a metal bracket inside the casing that is connected to the footrest and handle outside the casing, while maintaining a relatively light weight, thereby meeting the requirements for the structural strength of the mobile power station when working, transporting, laying down and storing, and has the advantages of light weight, high strength and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of the portable power station of the present invention;

[0019] Figure 2 is a front elevation view of the portable power station of the present invention;

[0020] Figure 3 is a cross-sectional view of the portable power station of the present invention cut along the outer side of the left casing;

[0021] Figure 4 is a cross-sectional view of the portable power station of the present invention cut along the horizontal plane of the center of the roller;

[0022] Figure 5 is a rear cross-sectional view of the portable power station of the present invention;

[0023] Figure 6 It is a left side stereogram of the portable power station of the present invention after the casing is removed;

[0024] Figure 7 is a right rear perspective view of the portable power station of the present invention after the casing is removed;

[0025] Figure 8 is a three-dimensional diagram of the portable power station of the present invention after removing the left housing, maintenance cover, protective cover and charging input panel;

[0026] Fig. 9 is an exploded diagram of the present invention applied to a mobile power source;

[0027] Fig.10 It is an exploded view of the present invention after the casing is removed.

[0028] Explanation of the numbers in the figure: 1. Casing, 101. Left Casing, 1011. Maintenance Cover, 1012. Protective Cover, 102. Right Casing, 103. Front Panel, 1031. Casing Air Inlet, 104. Rear Panel, 1041. Casing Air Outlet Cover, 1042. Casing Air Outlet, 105. Handle Cover, 106. Base, 2. Bracket, 201. Upper Bracket, 202. Lower Bracket, 203. Connecting Screws, 204. Lining, 3. Side Support Feet, 301. Upper Bracket Tripod, 302. Upper supporting foot, 303. Lower supporting foot, 304. Lower supporting foot, 305. Bolt, 4. Bottom supporting foot, 401. Bottom supporting foot, 402. Bottom supporting foot, 403. Bolt, 5. Handle device, 501. Handle A, 502. Handle B, 503. Handle C, 6. Inverter, 7. Controller, 8. Battery, 9. Battery pressure plate, 10. Output panel, 11. Charging input panel, 12. Roller device, 13. Pull rod device. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0030] like Figures 1 to 10 As shown, the portable power station of the present invention mainly includes two categories of products: mobile power supply and generator set. For the mobile power supply, the power generation device of the portable power station mainly includes a battery 8, an inverter 6 and an electronic control system, etc. The battery 8 can be charged from the mains, solar energy or a generator. The inverter 6 can convert the DC power of the battery 8 into AC power and output it through the output panel 10. Of course, DC output interfaces of various voltages can also be configured on the output panel. For the generator set, the power generation device of the portable power station mainly includes 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 the fuel into electrical energy. For the digital generator, it also includes an inverter. The inverter can convert the medium-frequency AC power output by the generator into a stable voltage industrial frequency AC power at various speeds. There are multiple AC and DC output interfaces on the output panel 10. For the generator set, an oil filling port is also provided on the top of the casing; for the mobile power supply, a charging input panel 11 is also provided on the top of the casing.

[0031] like Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the portable power station is mainly composed of an electric energy generating device, an output panel 10 and a casing 1. The casing 1 is usually made of non-metallic materials such as plastic, and the basic outline of the portable power station is designed to occupy a rectangular space. The electric energy generating device is accommodated in the casing 1, and the output panel 10 is arranged at the front of the casing 1. The bottom of the casing 1 is a base 106, which forms and closes the bottom of the casing 1. The base 106 is also made of non-metallic materials such as plastic. A convex bottom support footrest 402 is arranged at the bottom of the base 106, which is mainly used to contact the ground. The bottom support footrest 402 is connected to the bottom support bracket 401 in the casing. A bracket 2 is arranged inside the casing 1, as shown in FIG. Fig.10 As shown, the bracket 2 is mainly composed of an upper bracket 201, a lower bracket 202, a connecting screw 203 and a liner 204. The upper bracket 201 and the lower bracket 202 are connected by the connecting screw 203 and the liner 204. The specific connection method is: the connecting screw 203 passes through the mounting hole on the upper bracket 201, and then passes through the liner 204, and then is connected to the nut on the lower bracket 202. The two end faces of the liner 204 are respectively fitted with the matching surfaces on the upper bracket 201 and the lower bracket 202 to play a positioning and supporting role to form a metal skeleton.

[0032] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the heavier components such as the engine or battery contained in the power generation device inside the casing are all connected to the lower bracket 202 of the bracket 2, and the lower bracket 202 is connected to the bottom support leg 402 outside the casing through the bottom support leg 401, that is, the heavier components in the power generation device are connected to the bottom support leg 402 through the lower bracket 202. Since the heaviest components such as the engine and battery in the power station are all connected to the bracket 2, most of the weight of the power station will be directly transferred to the bottom support leg 402 through the bracket 2. Figure 3 and Figure 4 As shown, in this embodiment, four bottom support platforms 402 are arranged at the bottom of the base 106, and correspondingly, there are four bottom support legs 401. The bottom support platform 402 is a convex platform at the bottom of the housing for direct contact with the ground, and the pressure generated by all the weight of the power station is finally borne by it. Therefore, all the weight of the power station will be borne by the bottom support platform 402, the bottom support legs 401 and the bracket 2, which can prevent the plastic base 106 from being stressed, ensuring that the housing will not be damaged by its own weight when the power station is placed vertically.

[0033] like Figure 3 and Figure 5As shown, the bottom support platform 402 is connected to the lower bracket 202 via the bottom support foot frame 401. The bottom support platform 402 and the bottom support foot frame 401 can be directly connected, or the base 106 can be clamped between the two. When directly connected, it is equivalent to setting a "larger installation hole" in the area where the bottom support platform 402 is installed on the base 106 to ensure that there is a certain gap between the base 106 and the bottom support platform 402 and the bottom support foot frame 401 to avoid contact or compression between them and the base 106.

[0034] like Figure 1 , Figure 5 and Figure 7 As shown, in addition to the bottom support foot provided at the bottom of the base 106, the present invention also provides a side support foot 3 on the side of the casing 1, and the side support foot 3 is also connected to the bracket 2. The side support foot 3 is mainly composed of an upper support foot frame 301, an upper support foot platform 302, a lower support foot frame 303 and a lower support foot platform 304, and the upper support foot platform 302 and the lower support foot platform 304 protrude outward from the side of the casing 1. Similar to the function of the bottom support foot platform 402, when the power station is laid down, the upper support foot platform 302 and the lower support foot platform 304 are located on the side of the casing to contact the ground to bear the weight of the power station. Similar to the bottom support foot structure, the upper support foot platform 302 and the upper bracket 201 are connected through the upper support foot frame 301, and the lower support foot platform 304 and the lower bracket 202 are connected through the lower support foot frame 303.

[0035] Thus, when the power station is laid down, most of the weight of the power station will be directly transferred to the upper support leg 302 and the lower support leg 304 through the bracket 2. Figure 1 and Figure 7 As shown, in this embodiment, two upper support legs 302 and two lower support legs 304 are arranged on the side of the casing, and correspondingly, there are two upper support legs 301 and two lower support legs 303. The upper support legs 302 and the lower support legs 304 are bosses on the side of the casing for direct contact with the ground. All the weight of the power station will be borne by the upper support legs 301, the upper support legs 302, the lower support legs 303, the lower support legs 304 and the bracket 2, which can prevent the side of the plastic casing 1 from being subjected to force, ensuring that the casing will not be damaged by its own weight when the power station is laid down.

[0036] Since the bracket 2, the bottom support frame 401, the upper support frame 301 and the lower support frame 303 can be made of metal materials such as steel, they have high strength and sufficient load-bearing capacity. Figure 6 and Fig.10 As shown, the bracket 2 is a hollow structure, and the amount of metal material used is small, so the weight is light.

[0037] like Figure 4 and Figure 5As shown, the bottom supporting foot 402 is located on the outside of the mounting hole of the casing 1, and the bottom supporting bracket 401 connected thereto is located on the inside of the mounting hole of the casing 1. The bottom supporting foot 402 of the present invention is coaxially connected with the bottom supporting bracket 401 via bolts 403 at the top and bottom, that is, the mounting hole on the bottom supporting foot 402 is coaxially connected with the mounting hole on the bottom supporting bracket 401. The specific connection method is: the bolt 403 passes through the mounting hole on the bottom supporting foot 402, then passes through the mounting hole at the bottom of the casing, and then passes through the mounting hole on the bottom supporting bracket 401 through a threaded connection. This connection structure can ensure that the connection distance between the bottom supporting foot 402 on the outside of the casing and the bottom supporting bracket 401 on the inside is the shortest. When the power station is placed vertically, the pressure line on the bottom supporting bracket 401 passes through the center of the bottom supporting platform 402, and no torque is generated. Therefore, the casing mounting hole area in contact with the bottom supporting platform 402 and the bottom supporting bracket 401 will only be subjected to pressure, and the casing in the stress-bearing area will hardly be subjected to bending moment, and no bending stress will be generated. The strength requirements can be easily met by taking measures such as local reinforcement of the casing bottom mounting holes.

[0038] The same is true for the side support feet. Figure 4 and Figure 5 As shown, the upper support platform 302 / lower support platform 304 of the present invention and its upper support leg frame 301 / lower support leg frame 303 are also coaxially connected with the bolt 305 at the upper and lower ends. The specific connection method is: the bolt 305 passes through the mounting hole on the upper support platform 302 / lower support leg frame 304, then passes through the mounting hole on the side of the casing, and then is connected with the upper support leg frame 301 / lower support leg frame 303 through the threaded hole. When the power station is laid on its side, the pressure action line on the upper support leg frame 301 / lower support leg frame 303 just passes through the center of the upper support platform 302 / lower support leg frame 304, and no torque is generated. As long as the mounting hole on the side of the casing is partially reinforced, the strength requirement can be easily met.

[0039] Therefore, through the above technical solution, the present invention can greatly improve the structural strength of the portable power station with a plastic casing and maintain a relatively light weight.

[0040] It should be pointed out that the bottom support foot 402, the upper support foot 302 and the lower support foot 304 can be made into a structure integrated with the housing 1, or made into separate parts installed outside the housing. It is preferred to make them into separate parts, so that the material of the foot does not have to be the same as that of the housing 1, and more suitable materials such as rubber can be selected as the support foot pads. In addition, the key point of the present invention is that the bracket 2 is connected to the support foot, and the support foot frame and the support foot frame are preferably directly connected, but the present invention does not strictly limit the specific connection method between the support foot frame and the support foot frame, and the connection point A between the support foot frame and the housing and the connection point B between the support foot frame and the housing may not be at the same point, that is, they may be eccentric structures with different axes. However, the distance between connection point A and connection point B should not be too large. The longer the distance, the greater the bending stress and deformation of the plastic casing between the support frame and the support platform. The distance is based on the plastic casing between the support frame and the support platform being able to withstand the bending stress and deformation caused by the weight of the power station. In order to increase this distance, it may be necessary to partially reinforce the casing between the support platform and the support frame to withstand the additional bending stress. However, the distance between connection point A and connection point B should not be greater than 1 / 2 of the width of the power station, and it is best that the distance is no greater than 1 / 3 of the width of the power station, otherwise the bending stress between the support frame and the support platform is too large, and the plastic casing cannot withstand it even if it is reinforced.

[0041] Although the present embodiment only provides support feet on the bottom and side surfaces of the casing, support feet may also be provided on the other four surfaces of the casing as needed. In this way, the six surfaces of the power station, namely, the upper, lower, left, right, front and rear, are protected by support feet. No matter which side the power station is laid down on, and when it is subjected to external forces in all directions, the support feet and the bracket can provide all-round protection for the casing.

[0042] like Figure 1 , Figure 2 and Figure 8 As shown, in this embodiment, a handle device 5 is provided on the top of the housing 1, the handle is outside the housing 1, and the handle device 5 is connected to the upper bracket 201 of the bracket 2. The heavier parts such as the engine or battery contained in the electric energy generating device inside the housing are all connected to the lower bracket 202 of the bracket 2. Since the upper bracket 201 and the lower bracket 202 are connected by connecting screws 203 and lining tubes 204, the electric energy generating device and the handle device 5 are connected through the bracket 2. In this way, when the operator lifts the handle, the weight of the power station is borne entirely by the bracket 2, and the housing 1 will not be subjected to force, thereby preventing the housing 1 from being damaged by the tension caused by the power station's own gravity.

[0043] like Fig. 9As shown, the housing 1 of this embodiment is mainly composed of a left housing 101, a right housing 102, a front panel 103, a rear panel 104, a handle cover 105 and a base 106, and these housing components are all made of non-metallic materials such as plastic. The upper support foot 302 and the lower support foot 304 are both arranged on the right housing 102. As mentioned above, in order to avoid the right housing 102 from being subjected to force, the upper support foot 302 and the lower support foot 304 are connected to the electric energy generating device through the bracket 2. The base 106 of this embodiment alone constitutes the bottom of the housing 1. Of course, according to needs, the base 106 can also be made into a two-half structure, one half is integrally formed with the left housing 101, and the other half is integrally formed with the right housing 102. The handle device 5 is composed of a handle A, a handle B and a handle C. The handle A is connected to the upper bracket 201. The specific connection method is: the screw on the handle A passes through the handle cover 105 and is connected to the threaded hole on the middle top of the upper bracket 201. The handle B and the handle C are also connected to the upper bracket 201 , and the specific connection method is: the screws on the handle B / handle C pass through the housing and are connected to the front and rear end top threaded holes of the upper bracket 201 .

[0044] like Figure 3 , Figure 4 and Figure 6 As shown, the mobile power supply has a built-in battery 8 with + / - pole terminals. The battery 8 is placed in a frame structure formed by the lower bracket 202. A battery pressing plate 9 is provided on the outer side of the battery 8 close to the left casing 101. After removing the battery pressing plate 9, the battery 8 can be taken out of the frame structure of the lower bracket 202. The battery 8 can be taken out of the casing 1 by opening the maintenance cover 1011, which is very convenient for maintenance.

[0045] like Figure 1 and Fig. 9 As shown, in this example, a pull rod device 13 is also provided on the handle cover 105, and a roller device 12 is provided on the base 106. The power station can be conveniently moved by opening the pull rod and using the roller. Figure 4 As shown, the roller in the roller device 12 is connected to the metal roller bracket outside the roller through the roller shaft, and one end of the roller shaft is connected to the base 106 through a screw on the inside of the base, ensuring the structural strength of the roller device 12 and the connection strength with the base 106.

[0046] In summary, the present invention greatly increases the structural strength of the power station with a plastic casing with less metal material by arranging a metal bracket inside the casing that is connected to the footrest and handle outside the casing, while maintaining a lighter weight, and has obvious technical advantages.

[0047] Principle of the Invention

[0048] The present invention sets a metal bracket 2 inside the casing 1, and the handle device 5 on the top of the casing 1, the bottom support foot 4 at the bottom of the casing 1, and the side support foot 3 on the side of the casing are all directly connected to the bracket 2. The heavier parts of the portable power station such as the battery 8 or the engine are directly connected to the bracket 2. In this way, most of the weight of the portable power station is directly transferred to the various support feet outside the casing 1 through the bracket 2. When the generator is working, the vibration generated by the engine operation is also directly transferred to the various support feet outside the casing 1 by the metal bracket 2, and then transferred to the ground by the corresponding support feet, so the vibration will not affect the plastic casing 1. When the portable power station is placed vertically, the bottom support foot 4 at the bottom of the casing 1 supports all the weight of the portable power station through the metal bracket 2, and the casing 1 at the bottom is outside the force transmission path, and the casing 1 at the bottom is almost not subjected to force. When the portable power station is laid down, the side support foot 3 on the side of the casing 1 also supports all the weight of the portable power station through the metal bracket 2, and the casing 1 on the side is outside the force transmission path, and the casing 1 on the side is almost not subjected to force. When the portable power station is carried by the handle device 5 on the top of the casing 1, the handle device 5 bears all the weight of the portable power station through the metal bracket 2, the entire casing 1 is outside the force transmission path, and the plastic casing 1 will not bear any pulling force.

[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 reinforced structure of a portable power station, comprising a housing (1), and an electric energy generating device contained in the housing (1), characterized in that: The bottom of the housing (1) is formed by a base (106), a bottom support foot (402) is provided at the bottom of the base (106), a bracket (2) is provided inside the housing (1), and the electric energy generating device is connected to the base (106) and / or the bottom support foot (402) via the bracket (2); A handle device (5) is provided outside the housing (1), and the electric energy generating device and the handle device (5) are connected via a bracket (2); The support (2) is composed of an upper support (201), a lower support (202), a connecting screw (203) and a liner (204); the upper support (201) and the lower support (202) are connected via the connecting screw (203) and the liner (204); the connecting screw (203) passes through a corresponding mounting hole on the upper support (201) and passes through the liner (204) to be connected to a nut on the lower support (202); two end surfaces of the liner (204) are respectively fitted with matching surfaces on the upper support (201) and the lower support (202) to play a positioning and supporting role, thereby forming a metal skeleton; The electric energy generating device is connected to the bottom support platform (402) via a lower bracket (202), the handle device (5) is connected to the upper bracket (201), and the lower bracket (202) is connected to the base (106) and / or the bottom support platform (402) via a bottom support bracket (401); The bottom support foot platform (402) and the bottom support foot frame (401) are coaxially connected at the top and bottom via threaded fasteners; A side support foot (3) is provided on the side of the housing (1), and the bracket (2) is connected to the housing (1) and / or the side support foot (3); The side support legs (3) are composed of an upper support leg frame (301), an upper support foot platform (302), a lower support leg frame (303) and a lower support foot platform (304); the upper support foot platform (302) and the lower support foot platform (304) protrude from the outer surface of the housing (1); the upper support foot platform (302) and the upper bracket (201) are connected via the upper support leg frame (301); and the lower support foot platform (304) and the lower bracket (202) are connected via the lower support leg frame (303).

2. The reinforced structure of the portable power station according to claim 1, characterized in that: The electric energy generating device comprises a battery (8), an inverter (6) and an electric control system, and charges the battery (8) via city electricity, solar energy or a generator. The inverter (6) and the electric control system process the direct current of the battery (8) and output alternating current and / or direct current via an output panel (10).

3. The reinforced structure of the portable power station according to claim 1, characterized in that: The electric energy generating device comprises an engine, a generator and an electric control system; the generator outputs electric energy under the drive of the engine and outputs alternating current and / or direct current through an output panel (10) under the control of the electric control system.

4. The reinforced structure of the portable power station according to claim 1, characterized in that: The housing (1) and its base (106) are made of non-metallic material, and the bracket (2) is made of metallic material.

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