阅读说明：本技术 适用于恶劣环境的储能电站 (Energy storage power station suitable for adverse circumstances ) 是由 董建聪 马忠东 于 2021-07-29 设计创作，主要内容包括：本发明公开了一种适用于恶劣环境的储能电站,包括壳体以及容纳于壳体内的电源组件和逆变器,壳体的外部轮廓形成长方体架构,壳体包括第一防护壳体和第二防护壳体,第一防护壳体与第二防护壳体的开口配合面的周边形成有向外突出的凸缘,凸缘的厚度大于壳体的壁厚,凸缘的突出高度也大于壳体的壁厚；逆变器容纳于壳体内,逆变器外轮廓形成长方体外形,逆变器长度方向与壳体的长度方向一致。在便携式电站壳体上设置特殊的转轴和凸缘以增加结构强度和防护能力,并对逆变器和整机内部冷却结构进行优化设计,通过设置多个封闭的冷却风道改进散热效果,大大提高了储能电站恶劣环境下的适应能力,具有整机结构强度高、散热效果好和成本低的优点,具有明显的技术优势。(The invention discloses an energy storage power station suitable for severe environment, which comprises a shell, and a power supply assembly and an inverter which are accommodated in the shell, wherein the outer contour of the shell forms a cuboid framework; the inverter is accommodated in the shell, the outer contour of the inverter forms a cuboid shape, and the length direction of the inverter is consistent with the length direction of the shell. Set up special pivot and flange in order to increase structural strength and protective capacities on portable power station casing to carry out optimal design to dc-to-ac converter and the inside cooling structure of complete machine, improve the radiating effect through setting up a plurality of confined cooling duct, improved the adaptability under the energy storage power station adverse circumstances greatly, have that complete machine structural strength is high, the radiating effect is good and advantage with low costs, have obvious technical advantage.)

1. The utility model provides an energy storage power station suitable for adverse circumstances, its characterized in that includes the casing and holds power supply module and the dc-to-ac converter in the casing, and the outside profile of casing forms the cuboid framework, and in the cuboid framework, length is L, width be W, highly be H, and wherein L > W, L > H, the casing includes first protective housing and second protective housing, wherein:

the first protective shell and the second protective shell are rotatably installed through a rotating shaft, the rotating shaft is arranged along the length direction of the shells, the first protective shell and the second protective shell are matched to form an accommodating space for accommodating and closing a power supply assembly and an inverter, flanges protruding outwards are formed on the peripheries of opening matching surfaces of the first protective shell and the second protective shell, the thickness of each flange is larger than the wall thickness of each shell, and the protruding height of each flange is also larger than the wall thickness of each shell;

the inverter is accommodated in the shell, the outer contour of the inverter forms a cuboid shape, the cuboid shape is provided with a length L0, a width W0 and a height H0, L0> W0 and L0> H0, and the length direction of the inverter is consistent with the length direction of the shell;

the inverter comprises a PCB and electrical components, an inverter cooling air channel is formed on the front surface and/or the back surface of the PCB, cooling air flows enter from the front end of the PCB, flows along the length direction of the inverter to dissipate heat of the inverter, and then flows out from the back end of the PCB; an air outlet is formed in the shell, the rear end of the PCB is arranged on one side of the air outlet, and heat dissipation airflow for cooling the inverter is discharged out of the shell from the air outlet.

2. The harsh environment energy storage power plant of claim 1 wherein said first containment vessel has a height H1, said second containment vessel has a height H2, H1 is greater than H2, and said first containment vessel has a handle and vents for dissipating heat.

3. The energy storage power station suitable for severe environment of claim 2, wherein the first protective housing is provided with a plurality of ventilation openings, and the ventilation openings comprise two air outlets for heat dissipation, wherein one air outlet is used for heat dissipation and air outlet of the inverter, and the other air outlet is used for heat dissipation and air outlet of other areas of the housing.

4. The energy storage power station applicable to severe environments of claim 1, wherein a closed channel is formed between the rear end of the PCB and the air outlet on the housing, the closed channel is an inverter heat dissipation airflow discharge channel with two open ends, one open end of the closed channel is communicated with the rear end of the PCB, the other open end of the closed channel is communicated with the air outlet on the housing, and the closed channel ensures that high temperature airflow for cooling the inverter does not leak into other areas of the housing during discharge.

5. The harsh environment energy storage power plant of claim 1 wherein said inverter cooling duct is located between the PCB board and the inside wall of the housing.

6. The harsh environment energy storage power plant of claim 1 wherein said inverter is housed in an inverter enclosure, said inverter enclosure being housed in a housing, the outer profile of said inverter enclosure being a cuboid in which the length is L01, the width is W01, the height is H01, wherein L01> W01, and L01> H01, the length of said inverter enclosure being aligned with the length of the housing.

7. The energy storage power station suitable for harsh environments of claim 6 wherein an inverter outlet is provided at one end of said inverter housing and an outlet is provided in the housing, said inverter outlet being disposed on the side of said outlet, and wherein the cooling air stream cooling the inverter exits the housing through said outlet.

8. The energy storage power station suitable for harsh environments of claim 7 wherein a closed channel is formed between the inverter air outlet and the housing air outlet, the closed channel is an inverter heat dissipation airflow exhaust channel with two open ends, one open end of the closed channel is communicated with the inverter air outlet, the other open end of the closed channel is communicated with the housing air outlet, and the closed channel ensures that high temperature airflow cooling the inverter does not leak into other areas of the housing during the exhaust process.

Technical Field

The invention relates to the field of power stations, in particular to an energy storage power station suitable for severe environments.

Background

Currently, existing portable power stations are typically designed for home or outdoor recreational use, and the power station housing is typically made of plastic. The energy storage type power station is internally provided with a power supply assembly, an inverter and a controller, wherein the inverter can convert direct current from the power supply assembly into alternating current with specific frequency and voltage, the controller is mainly used for controlling charging and discharging, and the inverter has larger heat productivity during working. In addition, the controllers and power supply components of the energy storage power station also generate heat during operation, and therefore, the energy storage power station must be designed with consideration to both structural strength and good heat dissipation.

However, the existing portable power station has the following disadvantages:

the plastic shell in the prior art has insufficient design strength and rigidity, is easy to be collided and damaged during carrying and use, has poor heat dissipation at high temperature and poor environmental adaptability, hardly meets the requirements of field construction, and hardly adapts to the harsh environment for field construction.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides an energy storage power station suitable for severe environment, which can solve the problem of poor environment adaptability.

One of the purposes of the invention is realized by adopting the following technical scheme:

the utility model provides an energy storage power station suitable for adverse circumstances, includes the casing and holds power supply module and the dc-to-ac converter in the casing, and the external profile of casing forms the cuboid framework, and in the cuboid framework, length is L, width for W and height be H, and wherein L > W, L > H, the casing includes first protective housing and second protective housing, wherein: the first protective shell and the second protective shell are rotatably installed through a rotating shaft, the rotating shaft is arranged along the length direction of the shells, the first protective shell and the second protective shell are matched to form an accommodating space for accommodating and closing a power supply assembly and an inverter, flanges protruding outwards are formed on the peripheries of opening matching surfaces of the first protective shell and the second protective shell, the thickness of each flange is larger than the wall thickness of each shell, and the protruding height of each flange is also larger than the wall thickness of each shell; the inverter is accommodated in the shell, the outer contour of the inverter forms a cuboid shape, the cuboid shape is provided with a length L0, a width W0 and a height H0, L0> W0 and L0> H0, and the length direction of the inverter is consistent with the length direction of the shell.

Further, the height of the first protective shell is H1, the height of the second protective shell is H2, H1 is larger than H2, and a handle and a ventilation opening for heat dissipation are arranged on the first protective shell.

Furthermore, a plurality of ventilation openings are arranged on the first protective shell, wherein the first protective shell comprises two heat dissipation air outlets, one of the heat dissipation air outlets is used for dissipating heat and exhausting air of the inverter, and the other heat dissipation air outlet is used for dissipating heat and exhausting air of other areas of the shell.

Further, the inverter comprises a PCB and electrical components, wherein the front surface and/or the back surface of the PCB is/are provided with an inverter cooling air duct, and cooling air enters from the front end of the PCB, flows along the length L0 direction of the inverter to dissipate heat of the inverter and then flows out from the back end of the PCB.

Furthermore, an air outlet is formed in the shell, the rear end of the PCB is arranged on one side of the air outlet, and heat dissipation airflow for cooling the inverter is discharged out of the shell from the air outlet.

Furthermore, a closed channel is formed between the rear end of the PCB and the air outlet on the shell, the closed channel is an inverter heat dissipation airflow discharge channel with openings at two ends, one end of the closed channel is communicated with the rear end of the PCB, the other end of the closed channel is communicated with the air outlet on the shell, and the closed channel ensures that high-temperature airflow for cooling the inverter cannot leak into other areas of the shell in the discharge process.

Further, the inverter cooling air duct is located between the PCB and the inner wall of the shell.

Further, the inverter is accommodated in an inverter cover, the inverter cover is accommodated in a case, an outer contour of the inverter cover is a rectangular parallelepiped in which a length is L01, a width is W01, and a height is H01, wherein L01> W01, and L01> H01, and a length direction of the inverter cover coincides with a length direction of the case.

Furthermore, an inverter air outlet is formed in one end of the inverter cover, an air outlet is formed in the shell, the inverter air outlet is formed in one side of the air outlet, and heat dissipation airflow for cooling the inverter is discharged out of the shell from the air outlet.

Furthermore, a closed channel is formed between the air outlet of the inverter and the air outlet on the shell, the closed channel is an inverter heat dissipation airflow discharge channel with openings at two ends, one end of the closed channel is communicated with the air outlet of the inverter, the other end of the closed channel is communicated with the air outlet on the shell, and the closed channel ensures that high-temperature airflow for cooling the inverter cannot leak into other areas of the shell in the discharge process.

Compared with the prior art, the invention has the beneficial effects that:

set up special pivot and flange in order to increase structural strength and protective capacities on portable power station casing to carry out optimal design to dc-to-ac converter and the inside cooling structure of complete machine, improve the radiating effect through setting up a plurality of confined cooling duct, improved the adaptability under the energy storage power station adverse circumstances greatly, have that complete machine structural strength is high, the radiating effect is good and advantage with low costs, have obvious technical advantage.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a perspective view of an energy storage power station suitable for use in harsh environments;

FIG. 2 is a perspective view of an energy storage power station adapted for use in harsh environments with a vent cover removed;

FIG. 3 is a perspective view of an energy storage power plant adapted for use in harsh environments with a second protective enclosure open;

FIG. 4 is a perspective view of the energy storage power station adapted for use in harsh environments with the second protective housing removed;

FIG. 5 is a partial cross-sectional view of an energy storage plant vent and shaft suitable for use in harsh environments;

FIG. 6 is a partial cross-sectional view of the housing;

FIG. 7 is an enlarged fragmentary view of the flange of the housing;

FIG. 8 is a diagram of an internal heat dissipation structure of an energy storage power station without an inverter enclosure suitable for harsh environments;

FIG. 9 is a diagram of an internal heat dissipation structure of an energy storage power station with inverter enclosure suitable for harsh environments;

fig. 10 is a perspective view of the inverter assembly;

fig. 11 is a perspective view of the inverter;

fig. 12 is an exploded view of the inverter assembly.

In the figure: 1. a housing; 101. a first protective housing; 102. a second protective housing; 103. a rotating shaft; 104. a flange; 1041. a first end flange; 1042. a second end flange; 2. an air duct; 201. an inverter cooling duct; 202. closing the channel; 3. a vent; 301. an air outlet; 302. an air inlet; 4. a top bracing assembly; 5. a display panel assembly; 6. a handle; 7. a controller; 8. a power supply component; 9. an inverter assembly; 901. an inverter; 9011. a PCB board; 90111. a front end; 90112. a back end; 9012. an electrical component; 902. an inverter cover; 9021. an inverter air outlet; 9022. an inverter air inlet; 10. a fan is built in.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The energy storage power station suitable for severe environment mainly comprises a shell, a power supply assembly, a controller and the like, the power station can provide various direct current or alternating current outputs, and various input and output control and protection functions are realized through the controller. In addition, the power supply assembly can be charged through the controller, and the power supply assembly can be charged from commercial power, solar energy, a wind driven generator or a gasoline generator and the like. For a portable power station with alternating current output, the portable power station also comprises an inverter, and the inverter can convert direct current of the power supply assembly into alternating current output.

As shown in fig. 1, 2 and 4, the energy storage power station suitable for severe environments is of a closed structure, a power supply assembly 8, a controller 7, an inverter 901, a relay, a wire harness and the like are all built in and closed in a housing 1, and the housing 1 of the patent is a plastic part and is preferably formed through an injection molding process. The profile of casing 1 is the approximate cuboid shape of length L, width W and height H, and its length L > width W, and length L > height H, and length L and width W constitute the bottom surface and the top surface of casing 1, and the bottom surface is the holding surface and contacts with ground when keeping flat, for the stability of improving placing, and width W > height H is preferred to this patent. As shown in fig. 6, the bottom surface of the housing 1 is provided with a top stay assembly 4, and when the portable power station is laid flat, the top stay assembly 4 on the bottom surface is in contact with the ground to support the weight of the power station.

As shown in fig. 1, 2 and 6, the enclosure 1 is formed by enclosing the first shield casing 101 and the second shield casing 102, the height H1 of the first shield casing 101 is greater than the height H2 of the second shield casing 102, and if the embedded structure on the mating surfaces of the first shield casing 101 and the second shield casing 102 is not considered, the sum of the height H1 of the first shield casing 101 and the height H2 of the second shield casing 102 is equal to the total height H of the enclosure 1. The bottom surface of the first protective housing 101 is provided with a top bracing assembly 4, and when the portable power station is laid flat, the top bracing assembly 4 on the bottom surface contacts with the ground to support the weight of the power station.

As shown in fig. 3 and 5, first protective housing 101 and second protective housing 102 of this embodiment are the injection molding, in particular, for convenience of maintenance and improvement of plastic housing strength, the L direction side of first protective housing 101 and second protective housing 102 of this patent is provided with a plurality of recesses along the junction, these upper and lower alternative semicircular groove passes through injection moulding, adjacent recess constitutes the upper half and the lower half of round hole respectively, the dislocation combination just can form a complete shaft hole like this, the benefit of design is that the mould can be moulded plastics and form the shaft hole without the slider of loosing core, greatly reduced cost. What is peculiar to this patent is that the rotation shaft 103 penetrates through the whole groove circular hole in the length L direction of the housing 1 to form a rotation shaft, so that the first protective housing 101 and the second protective housing 102 are rotatably connected together, and the arrangement of the rotation shaft 103 in the length L direction of the housing 1 contributes to increasing the connection strength. The rotating shaft 103 is disposed outside the housing 1 along the length L direction of the housing 1, and when the second protective housing 102 rotates around the rotating shaft 103 to be closely attached to the opening edge mating surface of the first protective housing 101, the two mate to form a closed space for accommodating and enclosing the power supply module 8, the inverter 901, the controller 7, the wiring harness, and the like, fig. 3 is a state when the second protective housing 102 is opened around the rotating shaft 103.

As shown in fig. 2, 6 and 7, an outwardly protruding flange 104 is formed at a matching position of the opening peripheries of the first protective housing 101 and the second protective housing 102, that is, the flanges 104 are disposed at the opening peripheries of the first protective housing 101 and the second protective housing 102, the flange 104 is divided into a first end flange 1041 and a second end flange 1042, the first end flange 1041 and the first protective housing 101 are integrally injection-molded, the second end flange 1042 and the second protective housing 102 are integrally injection-molded, and after the first protective housing 101 and the second protective housing 102 are closed, the matching surfaces of the first end flange 1041 and the second end flange 1042 are tightly attached together to play a role of sealing the housing 1. The casing 1 of this patent is characterized in that, for improving the structural strength and the sealing performance of the casing 1, the thickness b of the first end flange 1041 and the second end flange 1042 of this patent is greater than the main wall thickness t of the casing 1, the protrusion height c of the first end flange 1041 and the second end flange 1042 is also greater than the main wall thickness t of the casing 1, and the general design size of the casing 1 of this patent is: the wall thickness t of the body of the housing 1 is 2.5 to 6mm, the thickness b of the first end flange 1041 and the second end flange 1042 is 9 to 19mm, and the protruding height c of the first end flange 1041 and the second end flange 1042 is 7 to 17 mm. As shown in fig. 7, in this embodiment, the mating surfaces of the first end flange 1041 and the second end flange 1042 are provided with a fitting structure, the first end flange 1041 is provided with a rib, and the second end flange 1042 is provided with a groove, which is helpful for improving the sealing performance.

As shown in fig. 2 and 3, the first protective casing 101 of this patent is provided with a handle 6 on its side, and a plurality of handles 6 can be provided at different positions of the casing 1, and the handles 6 are used for lifting and carrying the portable power station. Naturally, according to needs, the bottom of the shell 1 can be provided with the roller and the pull rod, the pull rod can be pulled out when needed, the power station is dragged on the ground by the roller, and the portability is further improved. As shown in fig. 2, 4 and 5, since the power supply module 8, the inverter 901 and the controller 7 inside the power station housing 1 generate heat during operation, the housing 1 of the present invention is further provided with a vent 3 for cooling and dissipating heat, in order to improve the heat dissipation effect, the vent 3 of the present invention is disposed on the first protective housing 101, the vent 3 includes 2 heat dissipation air outlets 301 and 1 air inlet 302, and of course, a plurality of air inlets 302 may be disposed as required. In order to improve the protection performance of the vent 3, protective covers may be added at the air outlet 301 and the air inlet 302 as required to prevent rain water and foreign matters from entering the housing 1 from the vent 3. In the present invention, a plurality of cooling built-in fans 10 are provided in the housing 1, the built-in fans 10 may be provided at the air outlet 301 or the air inlet 302 as needed, or the built-in fans 10 may be provided at the air inlet or the air outlet of the inverter 901, and the external air enters the housing 1 from the air inlet 302 under the driving of the built-in fans 10 to cool the power supply module 8, the inverter 901, the controller 7, and the like, and then is discharged from the air outlet 301 out of the housing 1. As shown in fig. 5 and 8, the present invention is characterized in that, in order to improve the heat dissipation effect, at least 2 heat dissipation air outlets 301 are provided on the housing 1, one of the heat dissipation air outlets is used for cooling the inverter 901, and the other is used for cooling the other areas of the housing 1.

As shown in fig. 8 and 11, the inverter 901 of the present patent is housed in the case 1, and the inverter 901 is contoured to form a rectangular parallelepiped shape of length L0, width W0, and height H0, and has a length L0> width W0, and a length L0> height H0. The special point of this patent is that, in order to optimize the structural design and improve the inverter cooling effect, the inverter 901 length L0 of this patent is arranged along the length L direction of the casing 1, that is, the inverter 901 length L0 is consistent with the length direction L of the whole casing 1.

As shown in fig. 8 and 11, the inverter 901 of this patent includes a PCB 9011 and electrical components 9012, where the electrical components 9012 are disposed on the PCB 9011, and the electrical components 9012 include a resistor, a capacitor, a diode, a triode, a single chip, an inductor, a relay, and the like. An inverter cooling air duct 201 is formed on the front or back of the PCB 9011, cooling air flows into the front end 90111 of the PCB 9011 and flows along the length L0 of the inverter 901 to dissipate heat, that is, the inverter cooling air duct 201 is also formed on the front or back of the PCB 9011 along the length L0, and cooled heat dissipation air flows out of the inverter cooling air duct 201 from the back end 90112 of the PCB 9011. The particularity of this patent is that the rear end 90112 of the PCB 9011 is disposed on the air outlet 301 side of the housing 1, and the heat dissipation airflow that cools the inverter 901 is discharged out of the housing 1 through the air outlet 301 after flowing out of the rear end 90112 of the PCB 9011.

As shown in fig. 5, 8 and 11, since the inverter 901 of the portable power station is at a high temperature when the portable power station is in AC output loading operation, the heat dissipation airflow is heated to a high temperature by the heat generating devices on the inverter 901 after passing through the inverter 901, and the patent is particularly characterized in that a closed channel 202 is formed between the rear end 90112 of the PCB 9011 and the air outlet 301 on the housing 1 in order to prevent the high temperature airflow from leaking into other areas of the housing 1 during the process of being exhausted out of the housing 1. The closed channel 202 is an inverter heat dissipation airflow discharge channel with openings at two ends, an opening at one end is communicated with the rear end 90112 of the PCB 9011, an opening at the other end is communicated with the air outlet 301 on the housing 1, that is, the starting end of the closed channel 202 is communicated with the inverter cooling air channel 201 in a butt joint manner, the finishing end of the closed channel 202 is communicated with the air outlet 301 on the housing 1 in a butt joint manner, the closed channel 202 forms a next-stage airflow channel of the inverter cooling air channel 201, and the whole air channel 2 for cooling the inverter 901 is formed by the inverter cooling air channel 201 and the closed channel 202 together, so that high-temperature airflow after cooling the inverter 901 cannot leak into other areas of the housing 1 in the discharge process. As shown in fig. 8, the inverter 901 of the present embodiment is disposed near the inner wall of the casing 1, the PCB 9011 is substantially parallel to the inner wall of the casing 1, and the inverter cooling air duct 201 is formed between the PCB 9011 and the inner wall of the casing 1.

As another embodiment, as shown in fig. 9 and 10, the inverter 901 may be housed in an inverter case 902, which forms an inverter module 9, and the inverter module 9 is housed in the case 1. The inverter case 902 is a dedicated heat dissipating passage having both ends opened, and the inverter case 902 is contoured to have a rectangular parallelepiped shape with a length L01, a width W01, and a height H01, the length L01> the width W01, and the length L01> the height H01. The special point of this patent is that, in order to optimize the structural design and improve the inverter cooling effect, the length L01 of the inverter cover 902 of this patent is arranged along the length L direction of the housing 1, and the front end and the rear end formed by the width W01 and the height H01 of the inverter cover 902 are respectively provided with an inverter air inlet 9022 and an inverter air outlet 9021. As shown in fig. 10 and 12, an inverter air inlet 9022 is provided at the front end of the inverter case 902, an inverter air outlet 9021 is provided at the rear end of the inverter case 902, and the built-in fan 10 may be provided at the inverter air inlet 9022 or the inverter air outlet 9021 as necessary to ensure a sufficient cooling air volume of the inverter 901. As shown in fig. 9, in order to improve the heat radiation efficiency, the present patent is characterized in that the inverter outlet 9021 is provided on the outlet 301 side of the housing 1, and the heat radiation airflow for cooling the inverter 901 is discharged from the outlet 301 to the housing 1. As shown in fig. 9, an air inlet 302 is provided on the housing 1, and in order to improve the heat dissipation effect, the air inlet 302 is provided near the same side as the inverter air inlet 9022.

As shown in fig. 9, similar to the structure of the embodiment without the inverter cover 902, in order to prevent the high-temperature airflow from leaking into other areas of the housing 1 during the process of discharging the high-temperature airflow out of the housing 1, in this embodiment, a closed channel 202 is formed between the inverter air outlet 9021 and the air outlet 301 on the housing 1, one end of the closed channel 202 is open and communicated with the inverter air outlet 9021, and the other end of the closed channel 202 is open and communicated with the air outlet 301 on the housing 1, and the closed channel 202 ensures that the high-temperature airflow cooling the inverter 901 does not leak into other areas of the housing 1 during the process of discharging the high-temperature airflow. As shown in fig. 9 and 12, since the inverter 901 of the present embodiment is disposed inside the inverter housing 902, and the PCB 9011 is substantially parallel to the inner wall of the inverter housing 902, the inverter cooling air duct 201 of the present embodiment is formed between the PCB 9011 and the inner wall of the inverter housing 902, and the PCB 9011 is generally closely mounted on the inner wall of one side of the inverter housing 902, and the inverter cooling air duct 201 is formed between the inner wall of the other side and the PCB 9011.

As shown in fig. 3, various user interface components are disposed on the housing 1 of this patent, and the user interface components include an output interface, an input interface, a control switch, a display screen, and the like, that is, some AC/DC output sockets/plugs, charging input sockets/plugs, various switches, buttons, indicator lights, or display screens, and for convenience of adjustment and production, these user interface components of this patent are all disposed on the display panel assembly 5 in a centralized manner. As shown in fig. 7, the first end flange 1041 and the second end flange 1042 of this patent both have a protruding height c greater than the wall thickness t of the main body of the housing 1, and since the flanges 104 protrude more outward, various user interface components can be protected by the flanges 104 from being hit by external objects, thereby improving the adaptability under severe environments.

To sum up, this patent sets up special pivot and flange in order to increase structural strength and protective capacities on portable power station casing to carry out optimal design to dc-to-ac converter and the inside cooling structure of complete machine, improve the radiating effect through setting up a plurality of confined cooling duct, improved the adaptability under the energy storage power station adverse circumstances greatly, have that complete machine structural strength is high, the radiating effect is good and advantage with low costs, have obvious technological advantage.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.