Photovoltaic energy storage all-in-one machine

Abstract

The utility model discloses a photovoltaic energy storage integrated machine belongs to photovoltaic energy storage related technical field, including box, one side inner wall fixed mounting of box has the fan, this side is the porous setting and is outwardly fixed with first shell, first shell is towards the one side of fan and is the porous setting, the symmetry fixed of first shell inner wall has a plurality of pairs of semiconductor refrigeration piece, semiconductor refrigeration piece surface fixedly connected with the heat conduction plate, be fixedly connected with a plurality of fins between the heat conduction plate of locating the same height pair, and the fin is inclined setting, first shell bottom is equipped with the drainage unit for discharging the condensate water of condensation drop on the fin surface, through the cooperation of semiconductor refrigeration piece, heat conduction plate, fin, can make first shell inner airflow forced cooling and separate out the humidity in airflow, to improve the dryness of the airflow into the box, reduce the interference effect of humidity in airflow to the electronic component in the box.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic energy storage technology, specifically relating to an integrated photovoltaic energy storage machine. Background Technology

[0002] A photovoltaic (PV) energy storage integrated system is an integrated clean energy solution that highly integrates a PV inverter, battery management system, and energy storage battery units into a compact chassis. Its core function is to manage the electricity generated by solar panels, prioritizing the immediate power needs of households or devices, and storing excess energy in the built-in battery for use at night or during grid outages. This achieves self-generation and self-consumption of electricity, improves energy independence, and effectively reduces electricity costs.

[0003] During operation, the inverter generates a significant amount of heat through AC-DC conversion and battery charging / discharging. To ensure system efficiency and safety, the integrated unit typically requires a fan for forced air cooling. This cooling system intelligently regulates fan speed using an internal temperature sensor, continuously expelling heat generated by the core electrical components from the unit. This maintains the internal temperature within the optimal operating range, preventing performance degradation or triggering protective shutdowns due to overheating.

[0004] During use and observation, it was found that when the ambient air intake of the fan is too humid, the humid air is very likely to condense when it comes into contact with the internal electrical components and circuit boards with lower temperatures, forming tiny water droplets. These liquids can cause short circuits and leakage, and under long-term effects, they can significantly reduce the insulation performance and service life of the components, and may even cause fault arcs, affecting the stable operation and safety of the equipment. Utility Model Content

[0005] In response to one or more of the above-mentioned defects or improvement needs of the existing technology, this utility model provides a photovoltaic energy storage integrated machine, in which the combined action of semiconductor cooling chip, heat conduction plate and fins can force the airflow in the first outer shell to cool down and separate the moisture in the airflow, so as to improve the dryness of the airflow entering the box and reduce the interference of moisture in the airflow on the electronic components in the box.

[0006] To achieve the above objectives, this utility model provides a photovoltaic energy storage integrated machine, including a housing. A fan is fixedly installed on the inner wall of one side of the housing, and this side is perforated, with a first outer shell fixed to its outer wall. The side of the first outer shell facing the fan is also perforated. Multiple pairs of semiconductor cooling chips are symmetrically fixed to the inner wall of the first outer shell. A heat-conducting plate is fixed to the surface of each semiconductor cooling chip. Multiple fins are fixed between a pair of heat-conducting plates at the same height, and the fins are inclined. A drainage assembly is provided at the bottom of the first outer shell to discharge condensate dripping from the fin surface. Through the combined action of the semiconductor cooling chips, heat-conducting plates, and fins, the airflow inside the first outer shell can be forcibly cooled and the moisture in the airflow can be separated, thereby improving the dryness of the airflow entering the housing and reducing the interference of moisture in the airflow on the electronic components inside the housing.

[0007] As a further improvement of this utility model, the drainage component includes a water guide plate fixedly disposed at the bottom of the first housing; the water guide plate is inclined; a drainage groove is fixedly connected to the bottom of the first housing, and the drainage groove is located on one side of the water guide plate; the bottom of the drainage groove is open; a collection box is provided at the bottom of the first housing; the vertical projection of the drainage groove is located inside the collection box; after the water droplets on the fins are discharged onto the water guide plate, they can fall into the drainage groove through the inclined surface of the water guide plate, and then be discharged into the collection box through the bottom opening of the drainage groove, thereby realizing the guidance and collection of condensate generated inside the first housing.

[0008] As a further improvement of this utility model, a float is provided in the bottom opening of the drainage trough, and the shape of the float fits the opening; uprights are fixed to both sides of the float by mounting plates; the uprights are slidably connected to the bottom of the drainage trough; in the initial state, the float can seal the bottom opening of the drainage trough by its own weight. As condensate accumulates in the drainage trough, the float can float up under the action of buoyancy, and the uprights will provide a guiding effect for the float to open the bottom opening of the drainage trough and discharge the condensate. This arrangement can close the bottom opening of the drainage trough by the float when there is not much condensate in the first shell, so as to reduce the backflow of moisture into the first shell from the bottom of the drainage trough.

[0009] As a further improvement of this utility model, a skirt plate is fixedly connected to the bottom of the upright, and a first spring is fixedly connected between the skirt plate and the outer wall of the drainage trough. By setting the first spring, when the float rises to discharge condensate, the first spring will be in a compressed state. That is, after the condensate is discharged, the float will quickly return to its original position under the elastic force of the first spring, so as to improve the timeliness of the float sealing the drainage trough.

[0010] As a further improvement of this utility model, a rubber sleeve is fixed between the bottom skirt of the upright and the outer wall of the drainage channel; the first spring is located inside the rubber sleeve; by setting the rubber sleeve, the rubber sleeve can protect the first spring from moisture, so as to reduce the situation where the surface of the first spring is accelerated to age and rust due to water splashes and moisture when the bottom of the drainage channel is drained.

[0011] As a further improvement of this utility model, an air guide plate is fixedly connected to the inner wall of the first outer shell on one side of the opening; the air guide plate is a frustum structure; by setting the air guide plate, the airflow entering the first outer shell can be forced to reach the fins under the guidance of the air guide plate, reducing the situation where the fins are difficult to cool the airflow due to dead corners at the edges inside the first outer shell.

[0012] As a further improvement of this utility model, a second outer shell is symmetrically fixed to both sides of the box body, and the second outer shell is connected to the inside of the box body; the outer wall of the second outer shell is provided with multiple exhaust vents; by setting the second outer shell and exhaust vents, the airflow generated when the fan is working can enter the second outer shell after completing the cooling work of the electronic components and be discharged from the exhaust vents, so as to realize the exhaust of the gas in the box body by the device.

[0013] As a further improvement of this utility model, a grille is fixedly connected to the connection between the second outer shell and the box body; a sliding plate is provided on one side of the grille; the sliding plate and the inner wall of the second outer shell are slidably connected, and a second spring is fixedly installed between the sliding plate and the inner wall of the second outer shell; in the initial state, the second spring is in a compressed state, that is, the sliding plate can press against the grille under the elastic force of the second spring, and the exhaust port is in a closed state. As the fan continues to start, the air pressure inside the box will increase. During the process, the sliding plate can overcome the elastic force of the second spring under the action of air pressure and slide along the second outer shell, so that the gas inside the box can escape from the exhaust port. This setting can make the air pressure inside the box a slightly positive pressure state, which can reduce the situation where external moisture actively enters the box body.

[0014] As a further improvement of this utility model, thermal grease is applied between the semiconductor cooling chip and the heat-conducting plate, and between the semiconductor cooling chip and the first outer shell. By providing thermal grease, the thermal conductivity between the semiconductor cooling chip, the first outer shell, and the heat-conducting plate can be improved. This facilitates the cooling of the heat-conducting plate and fins by the semiconductor cooling chip, and also facilitates the heat dissipation of the semiconductor cooling chip by the first outer shell.

[0015] As a further improvement of this utility model, the side of the collection box facing the box body is chamfered; by setting one side of the collection box as chamfered, the collection box can be removed without being affected by the space interference of the upright, the first spring and other components.

[0016] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0017] In summary, the technical solutions conceived by this utility model have the following beneficial effects compared with the prior art:

[0018] (1) The photovoltaic energy storage integrated machine described in this utility model can force the airflow in the first outer shell to cool down and separate the moisture in the airflow through the combined action of semiconductor cooling chip, heat conduction plate and fins, so as to improve the dryness of the airflow entering the box and reduce the interference of moisture in the airflow on the electronic components in the box.

[0019] (2) The photovoltaic energy storage integrated machine described in this utility model falls into the drainage trough through the inclined surface of the water guide plate, and then is discharged into the collection box through the bottom opening of the drainage trough, so as to realize the guidance and collection of the condensate generated in the first shell. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main body of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the box in this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the fan in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the first outer shell in this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the fin in this utility model;

[0025] Figure 6 This is a schematic diagram of the water guide plate in this utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the second outer shell in this utility model.

[0027] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0028] 1. Housing; 12. Fan; 13. First outer shell; 14. Semiconductor cooling chip; 15. Heat conduction plate; 16. Fin; 2. Water guide plate; 22. Drainage trough; 23. Collection box; 3. Float; 32. Upright pole; 4. First spring; 5. Rubber sheath; 6. Air guide plate; 7. Second outer shell; 72. Exhaust vent; 8. Second spring; 82. Slide plate; 83. Grille. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0030] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] A preferred embodiment of this utility model provides a photovoltaic energy storage integrated machine, such as... Figures 1 to 7 As shown, the enclosure includes a housing 1. A fan 12 is fixedly installed on the inner wall of one side of the housing 1. This side is perforated, and a first outer shell 13 is fixedly connected to its outer wall. The side of the first outer shell 13 facing the fan 12 is perforated. Multiple pairs of thermoelectric coolers 14 are symmetrically fixed to the inner wall of the first outer shell 13. A heat-conducting plate 15 is fixedly connected to the surface of each thermoelectric cooler 14. Multiple fins 16 are fixedly connected between a pair of heat-conducting plates 15 at the same height, and the fins 16 are inclined. A drainage assembly is provided at the bottom of the first outer shell 13. The enclosure 1 is used to drain condensate dripping from the surface of fin 16. The top of the enclosure 1 is equipped with a solar panel, and the interior contains electrical components such as battery clusters and photovoltaic inverters. The specific configuration of these electrical components is based on existing mature technology; for example, as shown in the diagram, the battery clusters and inverters can be isolated by a partition, forming two independent heating cavities. During operation, by starting the fan 12, air is drawn from the outside through negative pressure on one side, and then the cooling airflow is sent into the enclosure 1 to cool the electrical components in the two heating cavities. When the fan 12 draws air in, the airflow... The device can enter the interior of the first housing 13 through the opening side of the first housing 13. During this process, the thermoelectric cooler 14 can be energized. The cold end of the thermoelectric cooler 14 is connected to the heat-conducting plate 15, and the hot end is connected to the first housing 13. Therefore, after the thermoelectric cooler 14 is energized, the heat-conducting plate 15 can cool the surface of the fins 16 through heat conduction. When the external airflow passes through the fins 16, the water vapor in the airflow will condense due to the low temperature. The condensed water droplets can adhere to the fins 16 and fall onto the first housing 13 by gravity due to the inclined arrangement of the fins 16. Within the drainage assembly at the bottom, the airflow is condensed at low temperature by the fins 16. This reduces the moisture in the airflow blown into the housing 1 by the fan 12 and also improves the cooling effect of the airflow on the electrical components inside the housing 1 by lowering the airflow temperature. Through the combined action of the semiconductor cooling chip 14, the heat-conducting plate 15, and the fins 16, the airflow inside the first outer shell 13 can be forcibly cooled and the moisture in the airflow can be separated, thereby improving the dryness of the airflow entering the housing 1 and reducing the interference of moisture in the airflow on the electronic components inside the housing 1.

[0032] Specifically, such as Figure 4 and Figure 6As shown, the drainage assembly includes a water guide plate 2 fixedly installed at the bottom of the first housing 13; the water guide plate 2 is inclined; a drainage groove 22 is fixedly connected to the bottom of the first housing 13, and the drainage groove 22 is located on one side of the water guide plate 2; the bottom of the drainage groove 22 is open; a collection box 23 is provided at the bottom of the first housing 13; the vertical projection of the drainage groove 22 is located inside the collection box 23; after the water droplets on the fins 16 are discharged onto the water guide plate 2, they can fall into the drainage groove 22 through the inclined surface of the water guide plate 2, and then be discharged into the collection box 23 through the bottom opening of the drainage groove 22, thereby realizing the guidance and collection of condensate generated inside the first housing 13.

[0033] Furthermore, such as Figure 6 As shown, a float 3 is provided in the bottom opening of the drainage trough 22, and the float 3 is fitted to the opening. Uprights 32 are fixed to both sides of the float 3 via mounting plates. The uprights 32 are slidably connected to the bottom of the drainage trough 22. In the initial state, the float 3 can seal the bottom opening of the drainage trough 22 by its own weight. As condensate accumulates in the drainage trough 22, the float 3 can float upwards under buoyancy. The uprights 32 then guide the float 3 to open the bottom opening of the drainage trough 22 and discharge the condensate. This arrangement allows the float 3 to seal the bottom opening of the drainage trough 22 when there is not much condensate inside the first outer shell 13, thereby reducing the backflow of moisture from the bottom of the drainage trough 22 into the first outer shell 13.

[0034] Furthermore, such as Figure 6 As shown, a skirt plate is fixed to the bottom of the upright 32, and a first spring 4 is fixed between the skirt plate and the outer wall of the drainage trough 22. By setting the first spring 4, when the float 3 floats up to discharge condensate, the first spring 4 will be in a compressed state. That is, after the condensate is discharged, the float 3 will quickly return to its original position under the elastic force of the first spring 4, so as to improve the timeliness of the float 3 in sealing the drainage trough 22.

[0035] Furthermore, such as Figure 6 As shown, a rubber sleeve 5 is fixed between the bottom skirt of the upright 32 and the outer wall of the drainage channel 22; the first spring 4 is located inside the rubber sleeve 5; by setting the rubber sleeve 5, the rubber sleeve 5 can protect the first spring 4 from moisture, so as to reduce the situation where the surface of the first spring 4 is accelerated to age and rust due to water splashes and moisture when the bottom of the drainage channel 22 drains.

[0036] Furthermore, such as Figure 3 and Figure 4As shown, an air guide plate 6 is fixed to the inner wall of the opening side of the first outer shell 13; the air guide plate 6 is a frustum structure; by setting the air guide plate 6, the airflow entering the interior of the first outer shell 13 can be forced to reach the fins 16 under the guidance of the air guide plate 6, reducing the dead corners at the edges of the first outer shell 13, which makes it difficult for the fins 16 to cool the airflow.

[0037] Furthermore, such as Figure 1 and Figure 7 As shown, a second outer shell 7 is symmetrically fixed to both sides of the housing 1, and the second outer shell 7 is connected to the interior of the housing 1; the outer wall of the second outer shell 7 is provided with a plurality of exhaust vents 72; by setting the second outer shell 7 and the exhaust vents 72, the airflow generated when the fan 12 is working can enter the second outer shell 7 and be discharged from the exhaust vents 72 after completing the cooling work of the electronic components, so as to realize the exhaust of the gas in the housing 1 by the device.

[0038] Furthermore, such as Figure 7 As shown, a grille 83 is fixedly connected to the connection between the second outer shell 7 and the box 1; a sliding plate 82 is provided on one side of the grille 83; the sliding plate 82 and the inner wall of the second outer shell 7 are slidably connected, and a second spring 8 is fixedly installed between the sliding plate 82 and the inner wall of the second outer shell 7; in the initial state, the second spring 8 is in a compressed state, that is, the sliding plate 82 can resist the grille 83 under the elastic force of the second spring 8. At this time, the exhaust port 72 is in a closed state. As the fan 12 continues to start, the air pressure inside the box 1 will increase. During the process, the sliding plate 82 can overcome the elastic force of the second spring 8 under the action of air pressure and slide along the second outer shell 7, so that the gas inside the box 1 can escape from the exhaust port 72. This setting can make the air pressure inside the box 1 a slightly positive pressure state, which can reduce the situation where external moisture actively enters the box 1.

[0039] Furthermore, thermal grease is applied between the thermoelectric cooler 14 and the heat-conducting plate 15, and between the thermoelectric cooler 14 and the first outer shell 13. By applying thermal grease, the thermal conductivity between the thermoelectric cooler 14, the first outer shell 13, and the heat-conducting plate 15 can be improved. This facilitates the cooling of the heat-conducting plate 15 and the fins 16 by the thermoelectric cooler 14, and also facilitates the heat dissipation of the thermoelectric cooler 14 by the first outer shell 13.

[0040] Furthermore, such as Figure 6 As shown, the side of the collection box 23 facing the box body 1 is chamfered; by setting one side of the collection box 23 as chamfered, the collection box 23 can be taken out without being spatially interfered by components such as the upright 32 and the first spring 4.

[0041] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A photovoltaic energy storage integrated machine, comprising a housing (1), characterized in that: A fan (12) is fixedly installed on one side of the inner wall of the housing (1). This side is perforated and a first outer shell (13) is fixedly attached to the outer wall. The side of the first outer shell (13) facing the fan (12) is perforated. Multiple pairs of semiconductor cooling chips (14) are symmetrically fixed to the inner wall of the first outer shell (13). A heat-conducting plate (15) is fixedly attached to the surface of the semiconductor cooling chip (14). Multiple fins (16) are fixedly attached between a pair of heat-conducting plates (15) at the same height, and the fins (16) are inclined. A drainage component is provided at the bottom of the first outer shell (13) for draining the condensate dripping from the surface of the fins (16).

2. The photovoltaic energy storage integrated machine according to claim 1, characterized in that, The drainage assembly includes a water guide plate (2) fixedly installed at the bottom of the first housing (13); the water guide plate (2) is inclined; a drainage groove (22) is fixedly connected to the bottom of the first housing (13), the drainage groove (22) is located on one side of the water guide plate (2); the bottom of the drainage groove (22) is open; a collection box (23) is provided at the bottom of the first housing (13); the vertical projection of the drainage groove (22) is located inside the collection box (23).

3. The photovoltaic energy storage integrated machine according to claim 2, characterized in that, The bottom opening of the drainage trough (22) is provided with a float (3), and the float (3) is fitted to the opening. The two sides of the float (3) are fixed with uprights (32) by mounting plates. The uprights (32) are connected to the bottom of the drainage trough (22) through and are slidably connected.

4. The photovoltaic energy storage integrated machine according to claim 3, characterized in that, The bottom of the upright (32) is fixedly connected to a skirt plate, and a first spring (4) is fixedly connected between the skirt plate and the outer wall of the drainage trough (22).

5. A photovoltaic energy storage integrated machine according to claim 4, characterized in that, A rubber sleeve (5) is fixed between the bottom skirt of the upright (32) and the outer wall of the drainage groove (22); the first spring (4) is located inside the rubber sleeve (5).

6. A photovoltaic energy storage integrated machine according to claim 5, characterized in that, A wind guide plate (6) is fixed to the inner wall of the opening side of the first outer shell (13); the wind guide plate (6) is a frustum structure.

7. A photovoltaic energy storage integrated machine according to claim 6, characterized in that, The box (1) is symmetrically fixed to two sides with a second outer shell (7), and the second outer shell (7) is connected to the interior of the box (1); the outer wall of the second outer shell (7) is provided with multiple exhaust vents (72).

8. A photovoltaic energy storage integrated machine according to claim 7, characterized in that, A grille (83) is fixedly connected to the connection between the second outer shell (7) and the box (1); a sliding plate (82) is provided on one side of the grille (83); the sliding plate (82) and the inner wall of the second outer shell (7) are slidably connected, and a second spring (8) is fixedly installed between the sliding plate (82) and the inner wall of the second outer shell (7).

9. A photovoltaic energy storage integrated machine according to claim 8, characterized in that, Thermal grease is applied between the semiconductor cooling chip (14) and the heat-conducting plate (15), and between the semiconductor cooling chip (14) and the first outer shell (13).

10. A photovoltaic energy storage integrated machine according to claim 9, characterized in that, The side of the collection box (23) facing the box body (1) is chamfered.

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