An energy storage inverter for photovoltaic system

Abstract

The utility model discloses an energy storage inverter for a photovoltaic system, comprising a sealed shell, a chamber is arranged in the sealed shell, a heat dissipation chamber and a working chamber are arranged in the chamber, an isolation plate is arranged between the heat dissipation chamber and the working chamber, a phase change material layer for storing cold energy is arranged in the heat dissipation chamber, a fan is arranged behind the phase change material layer, the fan is connected to the output end of a first motor, the isolation plate comprises a plurality of rotating blades, the rotating blades are rectangular parallelepiped mechanisms, a through hole is arranged at the center of a side surface, the rotating blades are fixed to a rotating shaft through the through hole, both ends of the rotating shaft are rotatably connected to the heat dissipation chamber wall, each rotating shaft is provided with a transmission gear, and each transmission gear is meshed with each other, one of the rotating shafts is connected to the output end of a second motor, the first motor and the second motor are controlled by a controller, and the first motor and the second motor are powered by a DC power supply of an inverter.

Description

Technical Field

[0001] The utility model relates to an energy storage inverter for a photoelectric system. Background Art

[0002] The inverter is a converter that converts DC power (battery, storage battery) into constant frequency and voltage or frequency and voltage regulated AC power (usually 220V, 50Hz sine wave). It consists of an inverter bridge, control logic and filter circuit. It is widely used in air conditioners, home theaters, electric grinding wheels, power tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, etc. If you drive out to work or travel, you can use an inverter to connect the battery to drive electrical appliances and various tools. The car inverter output through the cigarette lighter has a power specification of 20W, 40W, 80W, 120W to 150W. A larger power inverter power supply must be connected to the battery through a connecting wire. Connecting household appliances to the output end of the power converter allows you to use various electrical appliances in the car.

[0003] However, the heat dissipation performance of the inverter has always been a difficult problem that needs to be overcome. Currently, most inverters use water cooling, air cooling, heat pipe technology and other methods to dissipate heat, but these single methods are difficult to achieve the desired effect. Utility Model Content

[0004] The purpose of the utility model is to solve the above deficiencies in the prior art and provide an energy storage inverter for a photovoltaic system.

[0005] A storage inverter for a photovoltaic system comprises a sealed shell, a chamber is arranged in the sealed shell, a heat dissipation chamber and a working chamber are arranged in the chamber, an isolation plate is arranged between the heat dissipation chamber and the working chamber, a phase change material layer for storing cold energy is arranged in the heat dissipation chamber, a fan is arranged behind the phase change material layer, a first motor is powered by a DC power supply of an inverter, the isolation plate comprises a plurality of rotating blades, the rotating blades are rectangular parallelepiped structures, a through hole is arranged at the center of the side surface, the rotating blades are fixed to a rotating shaft through the through hole, both ends of the rotating shaft are rotatably connected to the heat dissipation chamber wall, each rotating shaft is provided with a transmission gear, and each transmission gear is meshed with each other, one of the rotating shafts is connected to the output end of the second motor, the first motor and the second motor are controlled by a controller, and the first motor and the second motor are powered by the DC power supply of the inverter.

[0006] Preferably, a temperature sensor is provided in the housing, and the temperature sensor is used to measure the temperature in the sealed housing and transmit a temperature signal to the controller.

[0007] Preferably, the sealing housing is made of aluminum or steel.

[0008] Preferably, a partition is provided between the fan and the phase change material layer, and a plurality of through holes are provided on the partition.

[0009] Preferably, the top of the heat dissipation cavity is a detachable cover plate, which is a rectangular structure with slide grooves penetrating the front end face and the rear end face on both sides thereof, and the slide grooves are used to cooperate with the slide rails on both sides of the top of the heat dissipation cavity.

[0010] Beneficial effect: Compared with the prior art, the utility model stores cold energy through phase change materials. When the temperature inside the sealed shell rises to a threshold value, the controller controls the first motor and the second motor to work, the rotating blades open, and the fan works. The fan blows the cold air emitted by the phase change material to every corner of the sealed shell to achieve the purpose of cooling. When the temperature drops to a certain level, the controller controls the first motor and the second motor to stop working, the fan stops working, and the rotating blades close. When the fan needs to be replaced or cleaned, the cover can be opened for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is an external schematic diagram of an energy storage inverter for a photovoltaic system;

[0012] Figure 2 It is a schematic diagram of the internal structure of the heat dissipation cavity when dissipating heat;

[0013] Figure 3 It is a schematic diagram of the internal structure of the heat dissipation cavity when the heat dissipation is not performed;

[0014] Figure 4 is a schematic diagram of a sealed housing;

[0015] In the figure, 1, sealing shell, 2, cover plate, 3, transmission gear, 4, partition, 5, rotating blade. DETAILED DESCRIPTION

[0016] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0017] like Figure 1-4 As shown, a sealing housing 1, a cover plate 2, a transmission gear 3, a partition plate 4, and a rotating blade 5;

[0018] A storage inverter for a photovoltaic system comprises a sealed housing 1, wherein a chamber is provided in the sealed housing 1, wherein a heat dissipation chamber and a working chamber are provided in the chamber, an isolation plate is provided between the heat dissipation chamber and the working chamber, a phase change material layer for storing cold energy is provided in the heat dissipation chamber, a fan is provided behind the phase change material layer, and the fan is connected to the output end of a first motor, the isolation plate comprises a plurality of rotating blades 5, the rotating blades 5 are rectangular parallelepiped structures, a through hole is provided at the center of the side surface, the rotating blades 5 are fixed to a rotating shaft through the through hole, both ends of the rotating shaft are rotatably connected to the heat dissipation chamber wall, each rotating shaft is provided with a transmission gear 3, and each transmission gear 3 is meshed with each other, one of the rotating shafts is connected to the output end of a second motor, the first motor and the second motor are controlled by a controller, and the first motor and the second motor are powered by a DC power supply of an inverter.

[0019] In this embodiment, a temperature sensor is disposed in the housing, and the temperature sensor is used to measure the temperature in the sealed housing 1 and transmit a temperature signal to the controller.

[0020] In this embodiment, the sealed housing 1 is made of aluminum or steel.

[0021] In this embodiment, a partition plate 4 is disposed between the fan and the phase change material layer, and a plurality of through holes are disposed on the partition plate 4 .

[0022] In this embodiment, the top of the heat dissipation cavity is a removable cover plate 2, which is a rectangular structure with slide grooves on both sides that penetrate the front end face and the rear end face, and the slide grooves are used to cooperate with the slide rails on both sides of the top of the heat dissipation cavity.

[0023] Instructions for use: When the inverter temperature is normal, the closing of the rotating blades 5 of the isolation plate senses the temperature inside the sealed shell through the temperature sensor and transmits the temperature signal to the controller. When the temperature rises to the threshold, the controller controls the first motor and the second motor to work, the fan works, the rotating blades 5 open, and the fan blows the cold air emitted by the phase change material to every corner of the sealed shell to achieve a cooling effect. At the same time, when the phase change material needs to be replaced and the fan needs to be cleaned, the cover 2 can be opened for operation.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy storage inverter for a photovoltaic system, characterized in that: It comprises a sealed shell, wherein a chamber is arranged in the sealed shell, wherein a heat dissipation chamber and a working chamber are arranged in the chamber, an isolation plate is arranged between the heat dissipation chamber and the working chamber, a phase change material layer for storing cold energy is arranged in the heat dissipation chamber, a fan is arranged behind the phase change material layer, the fan is connected to the output end of the first motor, the isolation plate comprises a plurality of rotating blades, the rotating blades are rectangular parallelepiped structures, a through hole is arranged at the center of the side surface, the rotating blades are fixed to the rotating shaft through the through hole, the two ends of the rotating shaft are rotatably connected to the heat dissipation chamber wall, each rotating shaft is provided with a transmission gear, and each transmission gear is meshed with each other, one of the rotating shafts is connected to the output end of the second motor, the first motor and the second motor are controlled by a controller, and the first motor and the second motor are powered by a DC power supply of an inverter.

2. The energy storage inverter for a photovoltaic system according to claim 1, characterized in that: A temperature sensor is arranged in the shell, and the temperature sensor is used to measure the temperature in the sealed shell and transmit the temperature signal to the controller.

3. The energy storage inverter for a photovoltaic system according to claim 1, characterized in that: The sealing shell is made of aluminum or steel.

4. The energy storage inverter for a photovoltaic system according to claim 1, characterized in that: A partition is arranged between the fan and the phase change material layer, and a plurality of through holes are arranged on the partition.

5. The energy storage inverter for a photovoltaic system according to claim 1, characterized in that: The top of the heat dissipation cavity is a detachable cover plate, which is a rectangular structure with slide grooves penetrating the front end face and the rear end face on both sides thereof, and the slide grooves are used to cooperate with the slide rails on both sides of the top of the heat dissipation cavity.

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