Photovoltaic energy storage all-in-one machine

Abstract

The invention relates to a photovoltaic energy storage all-in-one machine, and relates to the technical field of power generation and energy storage, the photovoltaic energy storage all-in-one machine comprises a shell and a circuit board, the circuit board is provided with an inverter used for converting output current, an energy storage battery pack used for storing energy and an auxiliary element, a pressure bin is arranged in the shell, and the circuit board is arranged on the outer wall of the pressure bin. The battery pack and the inverter extend into the pressure bin, and the pressure bin is further provided with a damping device used for reducing vibration generated after the circuit board collides, a fastening device used for preventing the circuit board from being broken and an air pressure adjusting device used for adjusting the air pressure of the pressure bin and the fastening device. Through cooperation of the fastening device and the damping device, vibration generated when the circuit board falls off can be reduced as much as possible, and meanwhile the circuit board can be prevented from being damaged as much as possible when falling off.

Description

Technical Field

[0001] The present application relates to power generation and energy storage technology, and in particular to an integrated photovoltaic energy storage device. Background Art

[0002] The photovoltaic energy storage integrated machine generally includes an inverter and an energy storage battery pack. The inverter is used to convert the direct current transmitted by the solar photovoltaic panel or the energy storage battery pack into alternating current output, and the energy storage battery pack is used to store the direct current output by the solar photovoltaic panel and output the direct current to the inverter.

[0003] In the related art, some portable suspended photovoltaic energy storage integrated machines are mostly installed on the wall under the eaves outdoors, especially around the solar photovoltaic panels. When the fixing parts used to fix the photovoltaic energy storage integrated machine age, the photovoltaic energy storage integrated machine may fall from the wall and be damaged. Summary of the invention

[0004] In order to avoid damage to a portable suspended integrated photovoltaic energy storage device caused by falling, the present application provides an integrated photovoltaic energy storage device.

[0005] In the first aspect, the photovoltaic energy storage integrated machine provided in the present application adopts the following technical solution: A photovoltaic energy storage integrated machine includes a housing and a circuit board. The circuit board is provided with an inverter for converting output current, an energy storage battery pack for energy storage, and auxiliary components. A pressure chamber is provided in the housing. The circuit board is provided on the outer wall of the pressure chamber. The battery pack and the inverter extend into the pressure chamber. The pressure chamber is also provided with Shock-absorbing device, used to reduce the vibration caused by the collision of the circuit board; The fastening device includes a fastening airbag arranged inside the pressure chamber, the battery pack and the inverter extend into the fastening airbag, an air inlet pipe and an air outlet pipe are arranged on the side wall of the pressure chamber, the fastening airbag is connected to the air inlet pipe and the air outlet pipe respectively, and the air inlet pipe is connected to the cold air box through a pipeline; The air pressure regulating device comprises a pressure relief valve arranged on an air outlet pipe, a regulating pipe is arranged on the pressure chamber, and the regulating pipe is connected to a cold air box through a pipeline.

[0006] By adopting the above technical solution, when in use, the gas generated by the cold air box enters the fastening airbag through the air inlet pipe, causing the fastening airbag to swell. At the same time, the gas generated by the cold air box enters the pressure chamber through the regulating pipe to control the size of the bulging of the fastening airbag. In addition, the excess gas in the fastening airbag is discharged through the pressure relief valve, so that the gas pressure in the fastening airbag is kept as constant as possible, which can minimize damage to the battery pack and inverter extending into the fastening airbag.

[0007] In addition, due to the high pressure inside the fastening airbag, the efficiency of heat transfer is improved. The cold air in the cold air box enters the fastening airbag and gathers below the fastening airbag, and the gas heated by the battery pack and inverter gathers above the fastening airbag, causing the heat generated by the battery pack and inverter to be quickly discharged from the fastening airbag, which can minimize the safety hazards caused by excessive temperature of the solar storage machine.

[0008] When the solar storage machine falls accidentally, the inflated fastening airbag provides support for the battery pack and inverter, and the fastening airbag wraps the battery pack and inverter, which can minimize the circuit board from bursting out of the pressure chamber after the fall. At the same time, the shock-absorbing device is used to reduce the vibration generated when the circuit board falls, which can minimize the circuit board from being damaged after the solar storage machine falls accidentally, causing circuit short circuit problems.

[0009] Optionally, the shock absorbing device includes a plurality of shock absorbing airbags fixedly connected to the outer wall of the pressure chamber, the plurality of shock absorbing airbags are enclosed to form a shock absorbing groove, and the circuit board is arranged in the shock absorbing groove.

[0010] By adopting the above technical solution, the side walls of the shock-absorbing airbag circuit board in the shock-absorbing groove are enclosed to ensure that the circuit board will not be damaged in all directions if the optical storage device accidentally falls.

[0011] Optionally, a plurality of shock absorbing springs are arranged in the shock absorbing airbag, the shock absorbing airbag is in contact with the circuit board, and the plurality of shock absorbing springs extend from the side wall of the circuit board away from the circuit board.

[0012] By adopting the above technical solution, in the event of a collision, the shock-absorbing spring can absorb part of the vibration energy, and the shock-absorbing airbag can reduce the vibration through the change of air pressure, thereby minimizing the damage to the circuit board after it falls. At the same time, the shock-absorbing spring can minimize the impact of the resonance of the light storage machine during operation on the light storage machine housing, which can effectively increase the service life of the fixing parts used to fix the suspended light storage machine.

[0013] Optionally, the shock-absorbing airbag is connected to the fastening airbag via a pipe, and a pressure regulating valve is provided on the pipe connecting the shock-absorbing airbag and the fastening airbag.

[0014] By adopting the above technical solution, the gas in the fastening airbag can enter the shock-absorbing airbag through the pipeline, and the user can adjust the stiffness of the shock-absorbing airbag to ensure that the circuit board can be minimized from being damaged when the optical storage machine falls from different hanging heights.

[0015] Optionally, the fastening device also includes a number of seals arranged in the pressure chamber, the fastening airbag is fixedly connected to the seals, a number of seals are provided with through holes for the battery pack and the inverter to pass through, a number of seals are abutted against the battery pack and the inverter, and the battery pack and the inverter are abutted against the outer wall of the fastening airbag.

[0016] By adopting the above technical solution, the battery pack and the inverter extend into the fastening airbag through the through hole in the seal, which can minimize air leakage of the fastening airbag. In addition, the fastening airbag can wrap the battery pack and the inverter at the same time, which can effectively increase the fastening strength.

[0017] Optionally, the pressure chamber is connected to an air return pipe, and the air pressure regulating device also includes an air return valve arranged on the air return pipe, and the air return valve is connected to the cold air box through a pipeline.

[0018] By adopting the above technical solution, the return air valve is used to adjust the air pressure in the pressure chamber, which can avoid the pressure chamber being damaged due to excessive air pressure.

[0019] Optionally, the pressure relief valve is connected to the cold air box through a pipe.

[0020] By adopting the above technical solution, the gas discharged through the pressure relief valve flows back into the cold air box, which can effectively reduce the emission of protective gas and increase the utilization rate of protective gas.

[0021] Optionally, a protective tube is provided on the pressure chamber, and the protective tube is used to spray the protective gas in the cold air box into the light storage machine.

[0022] By adopting the above technical solution, when the internal temperature of the photovoltaic storage machine is too high or the photovoltaic storage machine accidentally catches fire, protective gas can be sprayed into the photovoltaic storage gas through the protective tube to minimize damage to the photovoltaic storage machine due to excessive temperature.

[0023] Optionally, the battery pack and the inverter are arranged on a circuit board on a side facing away from the auxiliary components.

[0024] By adopting the above technical solution, the battery pack and inverter can adapt to a higher air pressure than other auxiliary components due to their different materials, thus preventing the auxiliary components from being damaged due to excessive air pressure.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the cooperation of the fastening device and the shock absorbing device, the vibration generated when the circuit board falls can be reduced as much as possible. At the same time, the problem of circuit short circuit caused by damage to the circuit board when it falls can be avoided as much as possible; 2. It can avoid potential safety hazards caused by excessive temperature of the solar storage machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of this application; Figure 2 It is a schematic diagram of the structure of the present application after removing the outer shell, mainly showing the pressure chamber; Figure 3 is along Figure 2 Sectional view along line AA; Figure 4 is along Figure 2 Sectional view along the midline BB; Description of the drawings: 1. Shell; 2. Circuit board; 3. Inverter; 4. Battery pack; 5. Auxiliary components; 6. Pressure chamber; 7. Air pressure regulating device; 701. Pressure relief valve; 702. Regulating pipe; 703. Return valve; 8. Fastening device; 801. Seal; 802. Limiting plate; 803. Fastening airbag; 9. Shock-absorbing device; 901. Shock-absorbing airbag; 902. Shock-absorbing spring; 10. Air outlet pipe; 11. Air inlet pipe; 12. Cold air box; 13. Return pipe; 14. Sealing hole; 15. Stabilizing block; 16. Air outlet hose; 17. Air inlet hose; 18. Mounting groove; 19. Pressure regulating pipe; 20. Pressure regulating valve; 21. Protective tube; 22. Fastening hole. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0028] A photovoltaic energy storage integrated machine, reference Figure 1 , Figure 2 , including a housing 1 and a circuit board 2, on which an inverter 3 for converting output current, an energy storage battery pack 4 for energy storage, and an auxiliary component 5 for supporting the operation of a photovoltaic storage machine are fixedly connected, and the battery pack 4 and the inverter 3 are fixedly connected to the circuit board 2 on the side away from the auxiliary component 5. A pressure chamber 6 is fixedly connected inside the housing 1, and air pressure regulating devices 7 are arranged on the opposite side walls of the pressure chamber 6, a fastening device 8 is arranged on the pressure chamber 6, and a shock absorbing device 9 is arranged on the side wall of the pressure chamber 6, and the circuit board 2 is fixedly connected to the side wall of the pressure chamber 6 on the same side as the shock absorbing device 9.

[0029] refer to Figure 1 , Figure 3 An air outlet pipe 10 connected to the pressure chamber 6 is fixedly connected to the side wall of the pressure chamber 6, and an air inlet pipe 11 is connected to the side wall of the pressure chamber 6 opposite to the air outlet pipe 10. The air inlet pipe 11 is connected to the interior of the pressure chamber 6, and the air inlet pipe 11 is connected to a cold air box 12 through a pipeline.

[0030] The air pressure regulating device 7 includes a regulating pipe 702 fixedly connected to the pressure chamber 6 and communicating therewith, and a pressure relief valve 701 fixedly connected to the air outlet pipe 10. The regulating pipe 702 is located below the air inlet pipe 11. A return air pipe 13 connected to the pressure chamber 6 is fixedly connected below the regulating pipe 702. The air pressure regulating device 7 also includes a return air valve 703 arranged on the return air pipe 13, and the return air valve 703 is connected to the cold air box 12 through a pipeline. The cold air box 12 is used to output low-temperature dry gas, and the gas filled in the cold air box 12 is an inert gas, and the inert gas is specifically carbon dioxide.

[0031] refer to Figure 3 The fastening device 8 includes two sealing members 801 fixedly connected to the inside of the pressure chamber 6. The two sealing members 801 are provided with sealing holes 14 that penetrate the sealing members 801 and the side wall of the pressure chamber 6 at the same time, and the contours of the two sealing holes 14 correspond to the contours of the battery pack 4 and the inverter 3, respectively. The battery pack 4 and the inverter 3 extend into the inside of the pressure chamber 6 through the corresponding sealing holes 14, and the two sealing members 801 abut against the battery pack 4 and the inverter 3, respectively.

[0032] The fastening device 8 also includes a fastening airbag 803 arranged inside the pressure chamber 6. The fastening airbag 803 is fixedly connected to the two sealing members 801. The fastening airbag 803 is provided with two fastening holes 22 for the battery pack 4 and the inverter 3 to extend therein. The battery pack 4 and the inverter 3 are in contact with the outer wall of the fastening airbag 803.

[0033] The fastening airbag 803 is fixedly connected with an outlet hose 16 and an inlet hose 17 , wherein the outlet hose 16 is fixedly connected to the outlet pipe 10 , and the inlet hose 17 is fixedly connected to the inlet pipe 11 , and cold air enters the fastening airbag 803 through the inlet hose 17 and is discharged through the outlet hose 16 .

[0034] refer to Figure 2 The fastening device 8 also includes two limit plates 802 fixedly connected to the side wall of the pressure chamber 6, and the two limit plates 802 are fixedly connected to the side close to the circuit board 2 with a stabilizing block 15, and the two stabilizing blocks 15 are correspondingly abutted against the connection between the battery pack 4 and the inverter 3 and the circuit board 2. This can prevent the pressure in the fastening airbag 803 from pushing the battery pack 4 and the inverter 3 outward, causing damage to the circuit board 2.

[0035] refer to Figure 2 A mounting groove 18 is provided on the side wall surface of the pressure chamber 6. The shock absorbing device 9 includes four shock absorbing airbags 901 fixedly connected to the side wall of the mounting groove 18. The four shock absorbing airbags 901 enclose a shock absorbing groove. The inner contour of the shock absorbing groove corresponds to the outer contour of the circuit board 2. The shock absorbing airbags 901 are in contact with the side wall of the circuit board 2 facing the circuit board 2.

[0036] refer to Figure 2 , Figure 4 A plurality of shock absorbing springs 902 are arranged in the shock absorbing airbag 901 , one end of each of the shock absorbing springs 902 faces the side wall of the circuit board 2 , and the other end of each of the shock absorbing springs 902 faces the side wall of the mounting groove 18 .

[0037] refer to Figure 3 , Figure 4A pressure regulating hole is provided on the side wall of the pressure chamber 6, and a pressure regulating pipe 19 connected to the inside of the shock-absorbing airbag 901 is fixedly connected to the shock-absorbing airbag 901. The pressure regulating pipe 19 passes through the pressure regulating hole and is fixedly connected to the fastening airbag 803, and a pressure regulating valve 20 is provided at the regulating hole, so that the gas in the fastening airbag 803 can enter the shock-absorbing airbag 901 through the pressure regulating valve 20, and the rigidity of the shock-absorbing airbag 901 can be adjusted by the amount of gas entering the shock-absorbing airbag 901.

[0038] refer to Figure 1 , Figure 2 A protective tube 21 connected to the pressure chamber 6 is fixedly connected to the side wall of the pressure chamber 6 on the same side as the circuit board 2, and a protective valve is arranged on the protective tube 21. When the circuit board 2 burns accidentally, the protective valve opens, so that the gas in the pressure chamber 6 enters the housing 1 through the protective tube 21 and extinguishes the flame.

[0039] The implementation principle of the embodiment of the present application is as follows: when in use, the gas generated by the cold air box 12 enters the fastening airbag 803 and the inside of the pressure chamber 6 respectively. After the cold air enters the fastening airbag 803, the fastening airbag 803 expands and bulges. At the same time, after the cold air enters the pressure chamber 6, the air pressure in the pressure chamber 6 increases and squeezes the fastening airbag 803.

[0040] At the same time, when the solar storage machine is working, the battery pack 4 and inverter 3 extending into the fastening airbag 803 will continue to generate a large amount of heat. In order to reduce the temperature of the battery pack 4 and inverter 3, the cold air box 12 needs to continuously output cold air to the fastening airbag 803. The gas after heat exchange between the battery pack 4 and inverter 3 is discharged through the pressure relief valve 701, so that the fastening airbag 803 is filled with cold air. Based on this, in order to control the size of the expansion of the fastening airbag 803, the cold air box 12 also needs to continuously output cold air to the pressure chamber 6.

[0041] In order to maintain the balance of the internal air pressure and avoid explosion of the pressure chamber 6, the excess gas in the fastening airbag 803 is discharged from the pressure relief valve 701, and the excess gas in the pressure chamber 6 is discharged from the return air pipe 13.

[0042] In addition, due to the high air pressure inside the fastening airbag 803, the heat transfer efficiency inside the fastening airbag 803 is high, and the cold air in the cold air box 12 enters the fastening airbag 803 and gathers below the fastening airbag 803, and the gas heated by the battery pack 4 and the inverter 3 gathers above the fastening airbag 803, resulting in the heat generated by the battery pack 4 and the inverter 3 being able to be quickly discharged from the fastening airbag 803, which can minimize the safety hazards caused by excessive temperature of the solar storage machine.

[0043] When the solar storage machine falls accidentally, the inflated fastening airbag 803 provides support for the battery pack 4 and the inverter 3, and the fastening airbag 803 wraps the battery pack 4 and the inverter 3, and cooperates with the two limit plates 802 to fasten the two, which can minimize the circuit board 2 from bursting out of the pressure chamber 6 after falling.

[0044] When in contact with the ground, the shock absorption is used to reduce the vibration generated when the circuit board 2 falls. The shock absorption spring 902 can absorb part of the vibration energy, and the shock absorption airbag 901 can reduce the vibration through the change of air pressure to avoid damage to the circuit board 2 after it falls.

[0045] In addition, the air pressure in the shock-absorbing airbag 901 can be adjusted through the pressure-regulating tube 19, so that the shock-absorbing airbag 901 can adapt to and protect the circuit boards 2 dropped from different heights.

[0046] When the temperature inside the solar storage machine is too high or the solar storage machine catches fire accidentally, the protection valve is opened to allow the gas in the pressure chamber 6 to be discharged through the protection pipe 21, and protective gas is sprayed inside the shell 1 to avoid damage to the solar storage machine as much as possible.

[0047] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A photovoltaic energy storage integrated machine, comprising a housing (1) and a circuit board (2), wherein the circuit board (2) is provided with an inverter (3) for converting output current, an energy storage battery pack (4) for storing energy, and an auxiliary component (5), characterized in that: A pressure chamber (6) is arranged in the housing (1), the circuit board (2) is arranged on the outer wall of the pressure chamber (6), the battery pack (4) and the inverter (3) extend into the interior of the pressure chamber (6), and the pressure chamber (6) is also provided with A shock absorbing device (9) for reducing the vibration generated by the circuit board (2) after collision; The fastening device (8) comprises a fastening airbag (803) arranged inside the pressure chamber (6), the battery pack (4) and the inverter (3) extend into the fastening airbag (803), an air inlet pipe (11) and an air outlet pipe (10) are arranged on the side wall of the pressure chamber (6), the fastening airbag (803) is connected to the air inlet pipe (11) and the air outlet pipe (10), respectively, and the air inlet pipe (11) is connected to the cold air box (12) through a pipeline; The air pressure regulating device (7) comprises a pressure relief valve (701) arranged on the air outlet pipe (10); a regulating pipe (702) is arranged on the pressure chamber (6); and the regulating pipe (702) is connected to the cold air box (12) through a pipeline.

2. The photovoltaic energy storage integrated machine according to claim 1, characterized in that: The shock absorbing device (9) comprises a plurality of shock absorbing air bags (901) fixedly connected to the outer wall of the pressure chamber (6), the plurality of shock absorbing air bags (901) enclose a shock absorbing groove, and the circuit board (2) is arranged in the shock absorbing groove.

3. The photovoltaic energy storage integrated machine according to claim 2, characterized in that: A plurality of shock absorbing springs (902) are arranged in the shock absorbing airbag (901), the shock absorbing airbag (901) is attached to the circuit board (2), and the plurality of shock absorbing springs (902) extend from the side wall of the circuit board (2) away from the circuit board (2).

4. The photovoltaic energy storage integrated machine according to claim 3, characterized in that: The shock-absorbing airbag (901) is connected to the fastening airbag (803) via a pipeline, and a pressure regulating valve (20) is provided on the pipeline used to connect the shock-absorbing airbag (901) and the fastening airbag (803).

5. The photovoltaic energy storage integrated machine according to claim 1, characterized in that: The fastening device (8) further comprises a plurality of sealing members (801) arranged in the pressure chamber (6); the fastening airbag (803) is fixedly connected to the sealing member (801); through holes for the battery pack (4) and the inverter (3) to pass through are provided on the plurality of sealing members (801); the plurality of sealing members (801) abut against the battery pack (4) and the inverter (3); and the battery pack (4) and the inverter (3) abut against the outer wall of the fastening airbag (803).

6. The photovoltaic energy storage integrated machine according to claim 1, characterized in that: The pressure chamber (6) is provided with an air return pipe (13), and the air pressure regulating device (7) further comprises an air return valve (703) arranged on the air return pipe (13), and the air return valve (703) is connected to the cold air box (12) through a pipeline.

7. The photovoltaic energy storage integrated machine according to claim 1, characterized in that: The pressure relief valve (701) is connected to the cold air box (12) through a pipeline.

8. The photovoltaic energy storage integrated machine according to claim 1, characterized in that: The pressure chamber (6) is provided with a protection tube (21), and the protection tube (21) is used to spray the protection gas in the cold air box (12) into the solar storage machine.

9. The photovoltaic energy storage integrated machine according to claim 1, characterized in that: The battery pack (4) and the inverter (3) are arranged on a circuit board (2) on a side facing away from the auxiliary element (5).

Images