Split type photovoltaic grid-connected cabinet

Abstract

The utility model relates to the technical field of grid-connected cabinets, in particular to a split type photovoltaic grid-connected cabinet. According to the technical scheme, the cabinet comprises a cabinet body, a cabinet door is hinged to an opening in one side of the cabinet body, the cabinet further comprises a ventilation assembly, the ventilation assembly comprises a base fixedly installed at the bottom of the cabinet body, air pipes are arranged on the two sides of the base, and a plurality of ventilation boxes communicated with the cabinet body are arranged at one ends of the air pipes. And the fireproof assembly comprises a plurality of groups of lifting ropes arranged in the cabinet body, and further comprises a mounting box fixedly mounted at the top of the ventilation box. According to the utility model, the baffle shields the air holes to isolate the air circulation between the accommodating cavity and the outside, thereby achieving the purpose of fire prevention, and because the lifting rope is located at the top of the accommodating cavity, the lifting rope can be burnt out no matter where an ignition point is located, thereby achieving the timely fire prevention of the cabinet body; and meanwhile, the burnt lifting rope can be stored, and the situation that the fire behavior is increased due to the fact that the lifting rope becomes a new combustible material is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of grid-connected cabinets, and in particular to a split-type photovoltaic grid-connected cabinet. Background Art

[0002] The split photovoltaic grid-connected cabinet is an electrical device used in a photovoltaic power generation system, which is used to connect the electricity generated by the photovoltaic power generation system to the power grid and realize the safe and stable input of electricity into the power grid. Its main function is to manage the power output of the photovoltaic system, ensure its safe and stable integration into the power grid, and realize the monitoring, protection and control of electricity. In the prior art, there is a fireproof photovoltaic grid-connected cabinet, including a cabinet body, a closed accommodating chamber is provided in the cabinet, and a plurality of plates are also provided in the cabinet. The plates divide the accommodating chamber into a plurality of independent sealed spaces, and also include a ventilation mechanism and a closing mechanism. Through the ventilation mechanism, ventilation is realized for each independent sealed space. The closing mechanism includes an expansion part and a wind-blocking plate. When a fire occurs, the expansion part located in each independent sealed space is burned off so that the wind-blocking plate connected to the expansion part by a hanging rope closes the air outlet, thereby realizing that the open flame is naturally extinguished due to lack of oxygen in the independent sealed space, and achieving the purpose of fire prevention.

[0003] In the above working process, since the combustible expansion part is arranged on the plates on both sides of the inner wall of the cabinet, when the fire point is located in the middle position of the cabinet, it takes a certain amount of time to wait for the fire to spread to the plates on both sides of the cabinet before the collision part can be burned off so that the air-blocking plate can close the air outlet to achieve fire prevention. The cabinet cannot be fireproofed in time. Therefore, we propose a split photovoltaic grid-connected cabinet. Summary of the invention

[0004] The purpose of the utility model is to propose a split photovoltaic grid-connected cabinet in view of the problems existing in the background technology.

[0005] The technical solution of the utility model: a split photovoltaic grid-connected cabinet, comprising a cabinet body, a cabinet door is hinged at an opening on one side of the cabinet body, and further comprising:

[0006] A ventilation assembly, the ventilation assembly comprising a base fixedly mounted on the bottom of the cabinet, ventilation nets fixedly mounted on both sides of the base, air ducts arranged on both sides of the base, and a plurality of ventilation boxes connected to the cabinet at one end of the air ducts;

[0007] A fireproof assembly, comprising a plurality of groups of hanging ropes arranged in the cabinet, and also comprising an installation box fixedly installed on the top of the ventilation box.

[0008] Optionally, two groups of partitions are fixedly installed in the cabinet, and the partitions divide the space in the cabinet into three accommodating chambers. The hanging rope is arranged on the top of each of the accommodating chambers, and multiple groups of U-shaped frames are fixedly installed on the top of the accommodating chambers. The hanging rope is passed through the U-shaped frame, and both ends of the hanging rope respectively pass through the cabinet and extend into the installation box. A fan and a servo motor for driving the fan to rotate are provided in the base.

[0009] Optionally, two sets of sealing strips are fixedly installed on the inner side of the cabinet door, and the sealing strips correspond to the positions of the partitions respectively. Rectangular holes connected to the ventilation box are opened on both sides of the accommodating cavity, and air holes connected to the air duct are opened on the ventilation box.

[0010] Optionally, the fire protection assembly further comprises a baffle slidably mounted in the installation box for shielding the wind hole, a through hole for the baffle to pass through is provided on the top of the ventilation box, a pulley is fixedly mounted on the top of the installation box, and the lifting rope is pressed against the top of the pulley.

[0011] Optionally, a rectangular plate is fixedly installed on the top of the baffle, both ends of the hanging rope are fixedly installed on the top of the rectangular plate, a slide groove is fixedly installed on the side of the installation box away from the cabinet, a slider is slidably installed in the slide groove, and the slider is fixedly connected to one side of the rectangular plate.

[0012] Optionally, the fire protection assembly also includes a fixed plate fixedly mounted on one side of the top of the rectangular plate, a turntable is rotatably mounted on the fixed plate, two groups of round rods are fixedly mounted on the side of the turntable close to the suspension rope, a fixed rod is fixedly mounted between the ends of the round rods away from the turntable, and the suspension rope is located between the two round rods.

[0013] Optionally, a rotating motor for driving the turntable to rotate is fixedly mounted on one side of the fixed plate, a switch is provided at the bottom of the mounting box, the switch is located directly below the rectangular plate, and the switch is connected to the rotating motor via a wire.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects:

[0015] 1. The utility model uses the base, fan, air duct, ventilation box, hanging rope and baffle to achieve the purpose of fire prevention by blocking the air holes of the baffle to isolate the circulation of the accommodating cavity and the outside air when a fire occurs in the accommodating cavity. Moreover, since the hanging rope is located at the top of the accommodating cavity, the hanging rope can be burned off no matter where the fire point is, thereby achieving timely fire prevention of the cabinet;

[0016] 2. The utility model realizes winding the broken rope around two round rods after the rope is burned through by means of a rectangular plate, a turntable, a round rod, a fixed rod, a rotating motor and a switch, thereby realizing storage of the rope and preventing the burned rope from becoming a new combustible material and causing the fire to intensify.

[0017] The utility model isolates the circulation of the accommodating cavity and the external air by shielding the air holes with the baffle plate, thereby achieving the purpose of fire prevention, and because the hanging rope is located at the top of the accommodating cavity, the hanging rope can be burned off no matter where the fire point is, thereby achieving timely fire prevention of the cabinet; at the same time, the burned hanging rope can be stored to prevent the hanging rope from becoming a new combustible material and causing the fire to increase. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Provide the overall structural diagram of the utility model;

[0019] Figure 2 Provide a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 The internal structure of the installation box in the utility model is shown as follows: Figure 1 ;

[0021] Figure 4 The internal structure of the installation box in the utility model is shown as follows: Figure 2 .

[0022] Figure numerals: 1, cabinet body; 101, accommodating cavity; 2, cabinet door; 3, sealing strip; 4, hanging rope; 5, air duct; 6, ventilation box; 7, installation box; 8, base; 9, ventilation net; 10, U-shaped frame; 11, rectangular hole; 12, air hole; 13, fan; 14, servo motor; 15, pulley; 16, turntable; 17, round rod; 18, fixing rod; 19, rectangular plate; 20, baffle; 21, slide groove; 22, switch; 23, slider; 24, rotating motor; 25, fixing plate. DETAILED DESCRIPTION

[0023] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0024] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0025] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example

[0030] like Figure 1-4As shown, the utility model proposes a split photovoltaic grid-connected cabinet, including a cabinet body 1, a cabinet door 2 is hinged at an opening on one side of the cabinet body 1, two groups of partitions are fixedly installed in the cabinet body 1, the partitions are made of flame-retardant material, such as calcium carbonate fiberboard, the partitions divide the space in the cabinet body 1 into three accommodating chambers 101, a hanging rope 4 is arranged on the top of each accommodating chamber 101, and a plurality of groups of U-shaped frames 10 are fixedly installed on the top of the accommodating chamber 101, the hanging rope 4 is inserted into the U-shaped frame 10, and the two ends of the hanging rope 4 respectively pass through the cabinet body 1 and extend into the installation box 7, two groups of fans 13 and servo motors 14 for driving the fans 13 to rotate are arranged in the base 8, and the servo motors 14 are started to rotate the fans 13, and the rotation of the fans 13 enables the accommodating chamber 101 to exchange air with the external environment, thereby playing a role in heat dissipation.

[0031] Among them, two groups of sealing strips 3 are fixedly installed on the inner side of the cabinet door 2, and the sealing strips 3 correspond to the positions of the partitions respectively. When the cabinet door 2 is closed, the sealing strips 3 contact the partitions respectively, so that the accommodating cavities 101 are independent of each other and are in a closed state, so that when one of the accommodating cavities 101 catches fire, it does not affect other accommodating cavities 101. Rectangular holes 11 connected to the ventilation box 6 are opened on both sides of the accommodating cavity 101, and air holes 12 connected to the air duct 5 are opened on the ventilation box 6.

[0032] In this embodiment, the ventilation assembly includes a base 8 fixedly mounted on the bottom of the cabinet 1, and ventilation nets 9 are fixedly mounted on both sides of the base 8. The ventilation nets 9 can prevent dust from entering the base 8 while ventilating, thereby achieving a dust-proof effect. Air ducts 5 are arranged on both sides of the base 8, and one end of the air duct 5 is provided with a plurality of ventilation boxes 6 connected to the cabinet 1. When the fan 13 rotates, external air enters the accommodating cavity 101 through the ventilation net 9, the air duct 5, and the ventilation box 6 in sequence, so that the accommodating cavity 101 exchanges air with the external environment, thereby achieving heat dissipation of the cabinet 1;

[0033] like Figure 2 , 3 As shown in FIG. 4 , the fire protection assembly includes a plurality of groups of hanging ropes 4 arranged in the cabinet 1, and also includes a mounting box 7 fixedly mounted on the top of the ventilation box 6. The fire protection assembly also includes a baffle 20 slidably mounted in the mounting box 7 for shielding the wind hole 12. A through hole is opened on the top of the ventilation box 6 for the baffle 20 to pass through. A pulley 15 is fixedly mounted on the top of the mounting box 7, and the hanging rope 4 is pressed against the top of the pulley 15. The pulley 15 is used to guide the direction of the hanging rope 4.

[0034] Among them, a rectangular plate 19 is fixedly installed on the top of the baffle 20, both ends of the hanging rope 4 are fixedly installed on the top of the rectangular plate 19, a slide groove 21 is fixedly installed on the side of the installation box 7 away from the cabinet 1, a slider 23 is slidably installed in the slide groove 21, a guide rod is fixedly installed in the slide groove 21, the slider 23 is slidably sleeved on the guide rod, the slider 23 is fixedly connected to one side of the rectangular plate 19, when the baffle 20 falls, the slider 23 slides in the slide groove 21, so as to improve the stability of the baffle 20 when falling.

[0035] In addition, the fire protection assembly also includes a fixed plate 25 fixedly installed on one side of the top of the rectangular plate 19, a turntable 16 is rotatably installed on the fixed plate 25, two groups of round rods 17 are fixedly installed on the side of the turntable 16 close to the suspension rope 4, a fixed rod 18 is fixedly installed between the ends of the round rods 17 away from the turntable 16, and the suspension rope 4 is located between the two round rods 17. When the turntable 16 rotates, the round rods 17 fixedly installed on the turntable 16 rotate with the fixed rods 18, so that the suspension rope 4 located between the two round rods 17 is wrapped around the round rods 17, thereby realizing the storage of the suspension rope 4 and preventing the burned suspension rope 4 from becoming a new combustible material and causing the fire to increase.

[0036] Finally, a rotating motor 24 that drives the turntable 16 to rotate is fixedly installed on one side of the fixed plate 25. A switch 22 is provided at the bottom of the installation box 7. The switch 22 is located directly below the rectangular plate 19. The switch 22 and the rotating motor 24 are connected by a wire. When the baffle 20 falls, the rectangular plate 19 fixedly installed on the top of the baffle 20 also moves downward, so that the rectangular plate 19 falls onto the switch 22, thereby turning on the switch 22, and causing the rotating motor 24 to rotate.

[0037] Working principle: During the working process of the utility model, when a fire occurs in any of the accommodating chambers 101, the flame will burn the hanging rope 4 arranged at the top of the accommodating chamber 101, so that the baffle 20 fixedly connected to both ends of the hanging rope 4 falls into the ventilation box 6 due to gravity. At this time, the slider 23 slides in the slide groove 21, so that the baffle 20 blocks the air hole 12, isolating the circulation of the accommodating chamber 101 from the external air, thereby achieving the purpose of fire prevention. Moreover, since the hanging rope 4 is located at the top of the accommodating chamber 101, the hanging rope 4 can be burned no matter where the fire point is, thereby achieving At the same time, when the baffle 20 falls, the rectangular plate 19 fixedly installed on the top of the baffle 20 also moves downward, so that the rectangular plate 19 falls onto the switch 22, thereby turning on the switch 22, so that the rotating motor 24 rotates, so that the turntable 16 rotates, so that the round rod 17 and the fixed rod 18 fixedly installed on the turntable 16 rotate, so that the hanging rope 4 located between the two round rods 17 is wound around the round rod 17, so that the hanging rope 4 is stored, and the burnt hanging rope 4 is prevented from becoming a new combustible material to increase the fire.

[0038] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A split photovoltaic grid-connected cabinet, comprising a cabinet body (1), wherein a cabinet door (2) is hingedly connected to an opening on one side of the cabinet body (1), characterized in that: Also includes: A ventilation assembly, the ventilation assembly comprising a base (8) fixedly mounted on the bottom of the cabinet (1), ventilation nets (9) fixedly mounted on both sides of the base (8), air ducts (5) being arranged on both sides of the base (8), and a plurality of ventilation boxes (6) connected to the cabinet (1) being arranged at one end of the air duct (5); A fireproof assembly, comprising a plurality of groups of hanging ropes (4) arranged in the cabinet (1), and also comprising a mounting box (7) fixedly mounted on the top of the ventilation box (6).

2. A split photovoltaic grid-connected cabinet according to claim 1, characterized in that: Two groups of partitions are fixedly installed in the cabinet (1), and the partitions divide the space in the cabinet (1) into three accommodating chambers (101). The hanging rope (4) is arranged at the top of each accommodating chamber (101), and multiple groups of U-shaped frames (10) are fixedly installed on the top of each accommodating chamber (101). The hanging rope (4) is inserted into the U-shaped frame (10), and the two ends of the hanging rope (4) respectively pass through the cabinet (1) and extend into the installation box (7). Two groups of fans (13) and servo motors (14) for driving the fans (13) to rotate are arranged in the base (8).

3. A split photovoltaic grid-connected cabinet according to claim 2, characterized in that: Two sets of sealing strips (3) are fixedly installed on the inner side of the cabinet door (2), and the sealing strips (3) respectively correspond to the positions of the partitions. Rectangular holes (11) connected to the ventilation box (6) are provided on both sides of the accommodating cavity (101), and air holes (12) connected to the air duct (5) are provided on the ventilation box (6).

4. A split photovoltaic grid-connected cabinet according to claim 3, characterized in that: The fireproof assembly also includes a baffle (20) slidably mounted in the installation box (7) for shielding the wind hole (12); a through hole is provided on the top of the ventilation box (6) for the baffle (20) to pass through; a pulley (15) is fixedly mounted on the top of the installation box (7), and the suspension rope (4) is pressed against the top of the pulley (15).

5. A split photovoltaic grid-connected cabinet according to claim 4, characterized in that: A rectangular plate (19) is fixedly mounted on the top of the baffle (20), both ends of the hanging rope (4) are fixedly mounted on the top of the rectangular plate (19), a sliding groove (21) is fixedly mounted on the side of the installation box (7) away from the cabinet (1), a sliding block (23) is slidably mounted in the sliding groove (21), and the sliding block (23) is fixedly connected to one side of the rectangular plate (19).

6. A split photovoltaic grid-connected cabinet according to claim 5, characterized in that: The fireproof assembly also includes a fixed plate (25) fixedly mounted on one side of the top of the rectangular plate (19); a turntable (16) is rotatably mounted on the fixed plate (25); two groups of round rods (17) are fixedly mounted on one side of the turntable (16) close to the suspension rope (4); a fixed rod (18) is fixedly mounted between the ends of the round rods (17) away from the turntable (16); and the suspension rope (4) is located between the two round rods (17).

7. A split photovoltaic grid-connected cabinet according to claim 6, characterized in that: A rotating motor (24) for driving the rotating disk (16) to rotate is fixedly mounted on one side of the fixing plate (25). A switch (22) is provided at the bottom of the mounting box (7). The switch (22) is located directly below the rectangular plate (19). The switch (22) is connected to the rotating motor (24) via a wire.

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