Durable highly-integrated photovoltaic container inverter room

By integrating the inverter with the DC cabinet, and adopting an indirect segmented direct exhaust duct and a low thermal conductivity rock wool layer design, the problem of poor heat dissipation in the inverter room is solved, achieving long-term reliable operation and efficient heat dissipation of the equipment, and improving the integration and maintenance convenience of the equipment.

CN224093054UActive Publication Date: 2026-04-07WENZHOU CHANGXIN ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-08
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing inverter rooms have limited functionality, low integration, and poor heat dissipation, resulting in high internal temperatures and preventing the equipment from operating safely for extended periods.

Method used

It adopts an integrated design of protection, heat dissipation and heat insulation, integrating the inverter and DC cabinet into one unit. It uses an indirect segmented direct exhaust duct, combined with S-shaped louvers and dustproof cotton board, and a centerline symmetrical design. It utilizes the airflow characteristics for heat dissipation, and a rock wool layer with low thermal conductivity is set in the side wall interlayer.

Benefits of technology

It has enabled the equipment to operate reliably for a long time, reduced energy consumption, improved heat dissipation efficiency and dust prevention, facilitated equipment maintenance, and ensured the safe operation of the equipment in a stable temperature environment.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a durable highly-integrated photovoltaic container inverter room, which comprises a photovoltaic inverter room, an inverter cabinet and a direct current cabinet, a top plate is arranged at the top of an upper room body of the photovoltaic inverter room, a box bottom is arranged at the bottom of the room body, side doors are arranged at two ends of the room body, inverter room doors are arranged at the centers of the front surface and the back surface of the room body, and the inverter room doors are connected with the inverter cabinet. The photovoltaic inverter room is internally provided with an inverter cabinet and a direct current cabinet, the inverter cabinet is communicated with the direct current cabinet, a monitoring unit is arranged between the inverter cabinet and the direct current cabinet in a matched mode, the top of the security monitor, the top of the inverter cabinet and the top of the direct current cabinet are each provided with an air channel, and the air channels are arranged in the top of the inner side of the photovoltaic inverter room. According to the utility model, the inverter and the direct current cabinet are integrated, the indirect sectional type direct exhaust air duct is adopted, so that the whole equipment can run reliably for a long time, the S-shaped blind window and the dustproof cotton plate can further play a dustproof role, and the middle line symmetric design facilitates the later maintenance of the equipment.
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Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic container inverter house technical field, concretely is a durable height integration's photovoltaic container inverter house. BACKGROUND

[0002] Container inverter house is mainly applied to large and medium-sized photovoltaic power station, adopts outdoor type standard container house body design, carries out height integration design to grid-connected inverter, monitoring power distribution cabinet, monitoring unit, security system and fire control, satisfies the need of large and medium-sized photovoltaic power station modularization design, fast installation, guarantees long-term, reliable, safe grid-connected power generation of photovoltaic power station.

[0003] However, the current inverter house function is relatively single, the integration degree is not high enough, and the internal temperature of the inverter house is very high in long-term use, the heat dissipation mode adopted in the inverter house is fan-assisted heat dissipation, which leads to large energy consumption and general heat dissipation effect, resulting in relatively high temperature in the house body, and the equipment cannot be safely operated for a long time, therefore, an improved technology is urgently needed to solve the problem existing in the prior art. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of integrated design of protection, heat dissipation, heat insulation, inverter and direct current cabinet are integrated in one, using indirect segmented straight air duct, so that the whole equipment can be reliably operated for a long time, S-shaped louver plus dustproof cotton board can further play the role of dust prevention, the design of midline symmetry facilitates the durable height integration's photovoltaic container inverter house of equipment later maintenance, to solve the problem proposed in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a durable height integration's photovoltaic container inverter house, including photovoltaic inverter house, inverter cabinet, direct current cabinet, the photovoltaic inverter house is equipped with house body, the top of house body is equipped with top plate, the bottom of house body is equipped with box bottom, the both ends of house body are equipped with side door, the front central and back central of house body are equipped with inverter house door;

[0006] The inside of the photovoltaic inverter house includes inverter cabinet and direct current cabinet, and the inverter cabinet is in communication with the direct current cabinet.

[0007] Preferably, the house body adopts container type, and a plurality of heat dissipation openings are arranged on the front side of the house body close to the top edge.

[0008] The back of the room is provided with multiple air inlets near the bottom edge, and each air inlet is provided with a louver. An S-shaped louver is provided in the center of the back of the room. A dustproof cotton board is provided on the inner side of the S-shaped louver, and a snap-fit ​​hole is provided on the outer frame of the dustproof cotton board.

[0009] The room body has a rock wool layer with low thermal conductivity in the interlayer of the side wall, and the thickness of the rock wool layer is 50-55mm.

[0010] Preferably, the inverter cabinet is equipped with a grid-connected inverter, which is an XG100-150KTR-PRO three-phase inverter, compatible with 700W+ modules, supports PID nighttime repair, improves system power generation, and is equipped with IP66 top-level protection.

[0011] Preferably, the DC cabinet is a GZS2-II DC cabinet, the power supply voltage of the DC cabinet is 380±10%V, the frequency is 50±1Hz, and an RS232 interface is provided on the DC cabinet.

[0012] Preferably, the main body of the air duct is a cuboid, the length of the air duct is 1m, no fan is installed inside the air duct, one end of the air duct is wedge-shaped, and an airflow inlet is provided below the wedge-shaped end. The airflow inlet of the air duct is located inside the room, and the other end of the air duct is provided with an airflow outlet, which is fixedly connected to a heat dissipation vent on the side wall of the room.

[0013] Preferably, the monitoring unit has wiring slots on both sides of the enclosure near the bottom. The PCB circuit board at the bottom inside the monitoring unit is equipped with a current monitoring module, a signal receiver, an inverter sensor, a voltage regulator module, and a main controller. The current monitoring module, signal receiver, inverter sensor, and voltage regulator module are all independently connected to the main controller. The back panel of the monitoring unit enclosure is equipped with a cooling fan, and heat sinks are evenly spaced on the back of the enclosure.

[0014] Preferably, the security monitor includes a temperature monitoring module, a humidity sensor, and a video acquisition module.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) The main body of the air duct is a cuboid, the length of the air duct is 1m, no fan is installed inside the air duct, the pressure loss is small, there is zero loss, and it is maintenance-free.

[0017] (2) The inner side of the S-shaped louver is equipped with a dustproof cotton board, and the outer frame of the dustproof cotton board is equipped with snap-fit ​​holes. The S-shaped louver has a good dustproof function due to its own S-shaped structure. In addition, the dustproof cotton board can further play a dustproof role. Moreover, the dustproof cotton board adopts the snap-fit ​​hole installation method, which is convenient for later replacement.

[0018] (3) The side wall interlayer of the room is provided with a rock wool layer with low thermal conductivity. The rock wool layer is 50-55mm thick. The rock wool layer can effectively block solar radiation and has a good heat preservation effect in low temperature environment.

[0019] (4) The inverter cabinet and DC cabinet are placed in a symmetrical manner along the center line, which makes it convenient for personnel to view information and perform front maintenance. The front door of the grid-connected inverter can be opened 160°, which increases the space for maintenance.

[0020] (5) Multiple air inlets are provided on the back of the chamber near the bottom edge. The heat dissipation vents are designed at a high position, while the air inlets are designed at a low position. This utilizes the flow characteristics of airflow. The high-temperature airflow flows upward, while the low-temperature airflow flows downward. This forms an airflow system, which allows the heat generated by the equipment inside the chamber to be discharged while the cold airflow enters the chamber from the air inlets to cool the equipment. This allows the entire chamber to maintain a stable temperature environment for a long time, ensuring the safe operation of the equipment for a long time.

[0021] (6) The photovoltaic inverter room adopts an integrated design of protection, heat dissipation and heat insulation, integrating the inverter and DC cabinet into one unit. It adopts an indirect segmented direct exhaust duct, which enables the entire equipment to operate reliably for a long time. The S-shaped louvers and dustproof cotton board can further play a role in dust prevention. The centerline symmetrical design facilitates the later maintenance of the equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the photovoltaic inverter room structure of this utility model;

[0023] Figure 2 This is a rear oblique view of the photovoltaic inverter room of this utility model;

[0024] Figure 3 This is a schematic diagram of the ventilation structure on the top of the photovoltaic inverter room of this utility model;

[0025] Figure 4 This is a schematic diagram of the air duct structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the bottom structure of the box of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the dustproof cotton board of this utility model installed at the air inlet;

[0028] Figure 7 This is a schematic diagram of the monitoring unit structure of this utility model.

[0029] In the diagram: 1. Photovoltaic inverter room; 2. Room body; 3. Side door; 4. Rain shelter; 5. Inverter room door; 6. S-shaped louvers; 7. Inverter cabinet; 8. DC cabinet; 9. Air duct; 10. Reinforcing rod; 11. Fan; 12. Bottom of the enclosure; 13. Manhole; 14. Grid-connected inverter; 15. Monitoring and distribution cabinet; 16. Monitoring unit; 17. Security monitor; 18. Heat dissipation vent; 19. Air inlet; 20. Dustproof cotton board; 21. Wiring trough; 22. Touch screen display. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-7 This utility model provides a technical solution: a durable and highly integrated photovoltaic container inverter house, including a photovoltaic inverter house 1, an inverter cabinet 7, and a DC cabinet 8. The photovoltaic inverter house 1 is provided with a house body 2, the top of the house body 2 is provided with a top plate, the bottom of the house body 2 is provided with a box bottom 12, and both ends of the house body 2 are provided with side doors 3. The front center and the back center of the house body 2 are provided with inverter house doors 5.

[0032] The interior of the photovoltaic inverter room 1 includes an inverter cabinet 7 and a DC cabinet 8. The inverter cabinet 7 and the DC cabinet 8 are connected. A monitoring unit 16 and a security monitor 17 are provided between the inverter cabinet 7 and the DC cabinet 8. The top of the inverter cabinet 7 and the DC cabinet 8 are provided with air ducts 9, which are built into the top of the inner side of the photovoltaic inverter room 1.

[0033] The housing 2 adopts a container-style design. Multiple ventilation openings 18 are located near the top edge of the front of the housing 2, each equipped with louvers. An S-shaped louver 6 is located on one side of the inverter door 5 on the front of the housing 2, with a rain shield 4 above the S-shaped louver 6 to prevent rainwater from flowing directly onto it. Multiple air inlets 19 are located near the bottom edge of the back of the housing 2. The ventilation openings 18 are designed to be high-level, while the air inlets 19 are designed to be low-level. This utilizes the airflow characteristics: hot air rises, and cold air flows downwards, forming an airflow system. This allows heat generated by the equipment inside the housing 2 to be expelled while cool air enters the housing 2 through the air inlets 19, cooling the equipment and ensuring the entire housing 2 maintains a stable temperature environment for extended periods, guaranteeing the long-term safe operation of the equipment.

[0034] The air inlet 19 is equipped with louvers, and the back center of the chamber 2 is equipped with an S-shaped louver 6. The inner side of the S-shaped louver 6 is equipped with a dustproof cotton board 20. The outer frame of the dustproof cotton board 20 is equipped with snap-fit ​​holes. The S-shaped louver 6 has a good dustproof function due to its own S-shaped structure. In addition, the dustproof cotton board 20 can further play a dustproof role. Moreover, the dustproof cotton board 20 adopts the snap-fit ​​hole installation method, which is convenient for future replacement.

[0035] The side wall interlayer of room 2 is equipped with a rock wool layer with low thermal conductivity. The rock wool layer is 50-55mm thick. The rock wool layer can effectively block solar radiation and has a good heat preservation effect in low temperature environment.

[0036] The inverter cabinet 7 houses a grid-connected inverter 14, which uses an XG100-150KTR-PRO three-phase inverter, is compatible with 700W+ modules, supports PID nighttime repair, improves system power generation, and is equipped with IP66 top-level protection.

[0037] DC cabinet 8 adopts GZS2-II DC cabinet. The power supply voltage of DC cabinet 8 is 500KV and the frequency is 50±1Hz. DC cabinet 8 provides RS232 interface.

[0038] Inverter cabinet 7 and DC cabinet 8 are placed symmetrically along the center line, which facilitates personnel to view information and perform front maintenance. The front door of grid-connected inverter 14 can be opened 160°, which increases the maintenance space.

[0039] The main body of the air duct 9 is a cuboid, and the length of the air duct 9 is 1m. No fan is installed inside the air duct 9, resulting in low pressure loss, zero loss, and no maintenance. One end of the air duct 9 is wedge-shaped, and an air inlet is provided below the wedge-shaped end. The air inlet of the air duct 9 is located inside the room 2. The other end of the air duct 9 is provided with an air outlet, which is fixedly connected to the heat dissipation vent 18 on the side wall of the room 2.

[0040] Wiring slots 21 are provided on both sides of the monitoring unit 16 near the bottom. The PCB circuit board on the bottom inner side of the monitoring unit 16 is equipped with a current monitoring module, a signal receiver, an inverter sensor, a voltage regulator module, and a main controller. The current monitoring module, signal receiver, inverter sensor, and voltage regulator module are all independently connected to the main controller. A cooling fan is provided on the back panel of the monitoring unit 16, and heat sinks are provided at equal intervals on the back of the back panel. The security monitor 17 includes a temperature monitoring module, a humidity sensor, and a video acquisition module. The monitoring unit 16 and the security monitor 17 provide real-time comprehensive monitoring of the entire photovoltaic inverter room 1, monitor the overall equipment status, and ensure the long-term safe operation of the equipment.

[0041] The photovoltaic inverter room 1 adopts an integrated design for protection, heat dissipation, and heat insulation, integrating the inverter and DC cabinet into one unit. It uses an indirect segmented direct exhaust duct to enable the entire equipment to operate reliably for a long time. The S-shaped louvers and dustproof cotton board 20 can further play a role in dust prevention. The centerline symmetrical design facilitates the later maintenance of the equipment.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A durable, highly integrated photovoltaic container inverter house, comprising a photovoltaic inverter house (1), an inverter cabinet (7), and a DC cabinet (8), characterized in that: The photovoltaic inverter room (1) is provided with a room body (2), the top of the room body (2) is provided with a top plate, the bottom of the room body (2) is provided with a box bottom (12), the two ends of the room body (2) are provided with side doors (3), and the front center and the back center of the room body (2) are provided with inverter room doors (5). The interior of the photovoltaic inverter room (1) includes an inverter cabinet (7) and a DC cabinet (8). The inverter cabinet (7) and the DC cabinet (8) are connected. The inverter cabinet (7) and the DC cabinet (8) are equipped with a monitoring unit (16) and a security monitor (17). The top of the inverter cabinet (7) and the DC cabinet (8) are equipped with air ducts (9), which are built into the top of the inside of the photovoltaic inverter room (1).

2. The durable, highly integrated photovoltaic container inverter house according to claim 1, characterized in that: The housing (2) is container-type. Multiple heat dissipation vents (18) are provided on the front of the housing (2) near the top edge. Louvers are provided at the heat dissipation vents (18). S-shaped louvers (6) are provided on one side of the inverter door (5) on the front of the housing (2). A rain shield (4) is provided above the S-shaped louvers (6). The back of the room (2) is provided with multiple air inlets (19) near the bottom edge. The air inlets (19) are provided with louvers. The back of the room (2) is provided with an S-shaped louver (6). The inner side of the S-shaped louver (6) is provided with a dustproof cotton board (20). The outer frame of the dustproof cotton board (20) is provided with snap-fit ​​holes. The room body (2) has a rock wool layer with low thermal conductivity in the interlayer of the side wall, and the thickness of the rock wool layer is 50-55mm.

3. The durable, highly integrated photovoltaic container inverter house according to claim 1, characterized in that: The inverter cabinet (7) is equipped with a grid-connected inverter (14). The grid-connected inverter (14) adopts the XG100-150KTR-PRO three-phase inverter, which is compatible with 700W+ modules, supports PID nighttime repair, improves system power generation, and is equipped with IP66 top-level protection.

4. The durable, highly integrated photovoltaic container inverter house according to claim 1, characterized in that: The DC cabinet (8) adopts the GZS2-II DC cabinet. The power supply voltage of the DC cabinet (8) is 380±10%V and the frequency is 50±1Hz. The DC cabinet (8) provides an RS232 interface.

5. A durable, highly integrated photovoltaic container inverter house according to claim 1, characterized in that: The main body of the air duct (9) is a cuboid, and the length of the air duct (9) is 1m. No fan is installed inside the air duct (9). One end of the air duct (9) is wedge-shaped, and an airflow inlet is provided below the wedge-shaped end. The airflow inlet of the air duct (9) is located inside the room body (2). The other end of the air duct (9) is provided with an airflow outlet. The airflow outlet of the air duct (9) is fixedly connected to the heat dissipation vent (18) on the side wall of the room body (2).

6. The durable, highly integrated photovoltaic container inverter house according to claim 1, characterized in that: The monitoring unit (16) has wiring slots (21) on both sides of the enclosure near the bottom. The monitoring unit (16) has a current monitoring module, a signal receiver, an inverter sensor, a voltage regulator module, and a main controller on the PCB circuit board at the bottom inside. The current monitoring module, signal receiver, inverter sensor, and voltage regulator module are all independently connected to the main controller. The monitoring unit (16) has a cooling fan on the back panel of the enclosure and heat sinks are evenly spaced on the back of the enclosure.

7. A durable, highly integrated photovoltaic container inverter house according to claim 1, characterized in that: The security monitor (17) includes a temperature monitoring module, a humidity sensor, and a video acquisition module.