Low-voltage photovoltaic grid-connected cabinet

Abstract

The utility model relates to the technical field of photovoltaic cabinets, in particular to a low-voltage photovoltaic grid-connected cabinet which comprises a cabinet body, cabinet doors are symmetrically arranged on one side of the cabinet body, a set of hinges are arranged between the cabinet body and the cabinet doors, a heat dissipation cleaning assembly is arranged in the cabinet body, a quick release assembly is arranged at one end of the cabinet body, a threaded rod is driven to rotate through a first motor, and a second motor is arranged at the other end of the cabinet body. A threaded rod drives a first sliding table to move along a sliding groove through a guide sliding block, the first sliding table drives fan blades on a third motor to move up and down through a horizontal moving structure, then a second motor drives a lead screw to rotate, the lead screw drives a second sliding table to move along a guide rod, and the second sliding table drives fan blades on the third motor to move front and back through an L-shaped plate. And the fan blades are driven to rotate through the motor III, so that air flow in the cabinet body is accelerated, heat dissipation treatment is performed on electrical equipment in the cabinet body, temperature rise in the photovoltaic cabinet is avoided, damage to the electrical equipment is avoided, and potential safety hazards such as cabinet body fire disasters and explosion are eliminated.

Description

Technical Field

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

[0002] A low-voltage photovoltaic grid-connected cabinet, referred to as a photovoltaic cabinet for short, is a device used to receive, distribute, and protect photovoltaic power sources in a low-voltage power grid. It is mainly used in distributed photovoltaic power generation projects and photovoltaic grid-connected power stations. The photovoltaic cabinet mainly includes electrical components such as circuit breakers, disconnectors, PV inverters, fuses, metering devices, monitoring devices, and air switches.

[0003] The existing photovoltaic cabinet is internally provided with electrical equipment. When the electrical equipment works, a large amount of heat will be generated. The traditional heat dissipation method is to open heat dissipation holes on the side of the photovoltaic cabinet to allow natural heat dissipation. However, the heat dissipation effect of such a heat dissipation method is not good. The temperature inside the photovoltaic cabinet rises, which will not only cause damage to the electrical equipment, but also may cause potential safety hazards such as cabinet fires and explosions. Summary of the Utility Model

[0004] In view of the problem that the existing photovoltaic cabinet is internally provided with electrical equipment, a large amount of heat will be generated when the electrical equipment works, and the traditional heat dissipation method is to open heat dissipation holes on the side of the photovoltaic cabinet to allow natural heat dissipation. However, the heat dissipation effect of such a heat dissipation method is not good. The temperature inside the photovoltaic cabinet rises, which will not only cause damage to the motor equipment, but also may cause potential safety hazards such as cabinet fires and explosions, the present utility model is proposed.

[0005] Therefore, the purpose of the present utility model is to provide a low-voltage photovoltaic grid-connected cabinet, and its purpose is to solve the problem that the existing photovoltaic cabinet is internally provided with electrical equipment, a large amount of heat will be generated when the electrical equipment works, and the traditional heat dissipation method is to open heat dissipation holes on the side of the photovoltaic cabinet to allow natural heat dissipation. However, the heat dissipation effect of such a heat dissipation method is not good. The temperature inside the photovoltaic cabinet rises, which will not only cause damage to the motor equipment, but also may cause potential safety hazards such as cabinet fires and explosions.

[0006] To solve the above technical problems, the present utility model provides the following technical solution: A low-voltage photovoltaic grid-connected cabinet includes a cabinet body. On one side of the cabinet body, cabinet doors are symmetrically provided. On one side of the cabinet door, a door handle is provided. Between the cabinet body and the cabinet door, a set of hinges is provided. It is characterized in that: a heat dissipation and cleaning component is provided inside the cabinet body, and a quick-release component is provided at one end of the cabinet body;

[0007] The heat dissipation and cleaning component includes a first motor. A threaded rod is provided at the output end of the first motor. A first sliding table is provided on the threaded rod. A horizontal movement structure is provided on one side of the first sliding table. A third motor is provided at the top of the horizontal movement structure. The output end of the third motor is drivingly connected to a fan blade. A guiding slider is provided at one end of the first sliding table. A sliding groove is formed on the inner wall of the cabinet, and the guiding slider is slidably connected to the sliding groove. A cleaning structure is provided on the other side of the first sliding table.

[0008] As a preferred solution of the low-voltage photovoltaic grid-connected cabinet described in the present invention, wherein: the first motor is provided on the top of the cabinet, the threaded rod is rotatably connected to the cabinet, and a protective cover is provided outside the first motor.

[0009] As a preferred solution of the low-voltage photovoltaic grid-connected cabinet described in the present invention, wherein: the horizontal movement structure includes a U-shaped plate. A second motor is provided on one side of the U-shaped plate. The output end of the second motor is drivingly connected to a lead screw. The lead screw is threadedly connected to a second sliding table. An L-shaped plate is provided on the top of the second sliding table. A guiding rod is provided on the U-shaped plate, and the second sliding table is slidably connected to the guiding rod.

[0010] As a preferred solution of the low-voltage photovoltaic grid-connected cabinet described in the present invention, wherein: the U-shaped plate is provided on one side of the first sliding table, the lead screw is rotatably connected to the U-shaped plate, and the third motor is provided on one side of the L-shaped plate.

[0011] As a preferred solution of the low-voltage photovoltaic grid-connected cabinet described in the present invention, wherein: the cleaning structure includes a first dust-proof net. The first dust-proof net is provided at the other end of the cabinet. A connecting block is provided on the other side of the first sliding table. A movable plate is provided on one side of the connecting block. A brush is provided on one side of the movable plate.

[0012] As a preferred solution of the low-voltage photovoltaic grid-connected cabinet described in the present invention, wherein: the quick-release component includes a U-shaped limiting plate. The U-shaped limiting plate is provided at one end of the cabinet. A second dust-proof net is provided inside the U-shaped limiting plate. Card slots are respectively provided on both sides of the second dust-proof net. Receiving plates are respectively provided on both sides of the U-shaped limiting plate. A wedge-shaped block is provided inside the card slot. A sliding rod is provided on one side of the wedge-shaped block. The sliding rod penetrates to the outside of the receiving plate. A spring is sleeved on the outer surface of the sliding rod. A pulling plate is provided at one end of the sliding rod.

[0013] As a preferred solution of the low-voltage photovoltaic grid-connected cabinet described in the present invention, wherein: a U-shaped handle is provided on one side of the second dust-proof net, and the spring is provided between the receiving plate and the pulling plate.

[0014] The beneficial effects of the present invention:

[0015] 1. In this utility model, the first motor drives the threaded rod to rotate. The threaded rod drives the first sliding table to move along the chute through the guiding slider. The first sliding table drives the fan blade on the third motor to move up and down through the horizontal movement structure. Then, the second motor drives the lead screw to rotate. The lead screw drives the second sliding table to move along the guiding rod. The second sliding table drives the fan blade on the third motor to move back and forth through the L-shaped plate. The third motor drives the fan blade to rotate, thereby accelerating the air flow inside the cabinet body and performing heat dissipation treatment on the electrical equipment inside the cabinet body, avoiding the increase of the temperature inside the photovoltaic cabinet, not only preventing the damage of electrical equipment, but also eliminating potential safety hazards such as the fire and explosion of the cabinet body.

[0016] 2. In this utility model, the first sliding table drives the connecting block to move. The connecting block drives the brush on one side of the movable plate to move along the first dust-proof net. The dust on the first dust-proof net is cleaned by the brush, which can not only prevent the blockage of the first dust-proof net, but also facilitate the cleaning of the first dust-proof net.

[0017] 3. In this utility model, the pull plate drives the sliding rod to move. The sliding rod drives the wedge block to disengage from the clamping groove and be received into the receiving plate. Then, the second dust-proof net is pulled out from the U-shaped limiting plate through the U-shaped handle, which facilitates the disassembly of the second dust-proof net and also the cleaning of the dust on the second dust-proof net. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0019] Figure 1 It is a schematic diagram of the overall structure of a low-voltage photovoltaic grid-connected cabinet of this utility model.

[0020] Figure 2 It is a schematic diagram of the structure of the heat dissipation and cleaning component of a low-voltage photovoltaic grid-connected cabinet of this utility model.

[0021] Figure 3 It is a schematic cross-sectional view of a low-voltage photovoltaic grid-connected cabinet of this utility model.

[0022] Figure 4 It is a schematic diagram of the structure of the quick-release component of a low-voltage photovoltaic grid-connected cabinet of this utility model.

[0023] DESCRIPTION OF THE REFERENCE NUMERALS:

[0024] 1. Cabinet body; 2. Cabinet door; 3. Door handle; 4. Hinge; 5. Heat dissipation and cleaning component; 51. Motor 1; 52. Threaded rod; 53. Slide table 1; 54. Horizontal movement structure; 541. U-shaped plate; 542. Motor 2; 543. Lead screw; 544. Slide table 2; 545. L-shaped plate; 546. Guide rod; 55. Motor 3; 56. Fan blade; 57. Guide slider; 58. Chute; 59. Cleaning structure; 591. Dust-proof net 1; 592. Connecting block; 593. Movable plate; 594. Brush; 6. Quick-release component; 61. U-shaped limit plate; 62. Dust-proof net 2; 63. Card slot; 64. Storage plate; 65. Wedge block; 66. Sliding rod; 67. Spring; 68. Pulling plate; 69. U-shaped handle. Detailed implementation mode

[0025] In order to make the above-mentioned objects, features and advantages of the present utility model more obvious and understandable, the following will make a detailed description of the specific implementation mode of the present utility model in conjunction with the drawings of the specification. Embodiment 1

[0026] Refer to Figures 1-3 , which is the first embodiment of the present utility model, and provides a low-voltage photovoltaic grid-connected cabinet. Such a low-voltage photovoltaic grid-connected cabinet includes a cabinet body 1, cabinet doors 2 are symmetrically arranged on one side of the cabinet body 1, a door handle 3 is arranged on one side of the cabinet door 2, a set of hinges 4 are arranged between the cabinet body 1 and the cabinet door 2, a heat dissipation and cleaning component 5 is arranged inside the cabinet body 1, and a quick-release component 6 is arranged at one end of the cabinet body 1;

[0027] The heat dissipation and cleaning component 5 includes a motor 1 51, a threaded rod 52 is arranged at the output end of the motor 1 51, a slide table 1 53 is arranged on the threaded rod 52, a horizontal movement structure 54 is arranged on one side of the slide table 1 53, a motor 3 55 is arranged on the top of the horizontal movement structure 54, the output end of the motor 3 55 is drivingly connected to a fan blade 56, a guide slider 57 is arranged at one end of the slide table 1 53, a chute 58 is opened on the inner wall of the cabinet body 1, and the guide slider 57 is slidably connected to the chute 58. A cleaning structure 59 is arranged on the other side of the slide table 1 53. By driving the threaded rod 52 to rotate through the motor 1 51, the threaded rod 52 drives the slide table 1 53 to move along the chute 58 through the guide slider 57. The slide table 1 53 drives the fan blade 56 on the motor 3 55 to move up and down through the horizontal movement structure 54. The electrical equipment is cooled by the up and down movement of the fan blade 56.

[0028] The motor 1 51 is arranged on the top of the cabinet body 1, the threaded rod 52 is rotatably connected to the cabinet body 1, and a protective cover is arranged outside the motor 1 51. The cabinet body 1 supports and assists the rotation of the threaded rod 52.

[0029] The horizontal movement structure 54 includes a U-shaped plate 541. On one side of the U-shaped plate 541, there is a second motor 542. The output end of the second motor 542 is drivingly connected to a lead screw 543. The lead screw 543 is threadedly connected to a second sliding table 544. On the top of the second sliding table 544, there is an L-shaped plate 545. On the U-shaped plate 541, there is a guide rod 546, and the second sliding table 544 is slidably connected to the guide rod 546. By driving the lead screw 543 to rotate with the second motor 542, the lead screw 543 drives the second sliding table 544 to move along the guide rod 546. The second sliding table 544 drives the fan blade 56 on the third motor 55 to move back and forth through the L-shaped plate 545, and heat dissipation is performed on the electrical equipment in the other direction through the fan blade 56.

[0030] The U-shaped plate 541 is arranged on one side of the first sliding table 53. The lead screw 543 is rotatably connected to the U-shaped plate 541. The third motor 55 is arranged on one side of the L-shaped plate 545. The U-shaped plate 541 plays an auxiliary role in rotating the lead screw 543.

[0031] The cleaning structure 59 includes a first dust-proof net 591. The first dust-proof net 591 is arranged at the other end of the cabinet body 1. On the other side of the first sliding table 53, there is a connecting block 592. On one side of the connecting block 592, there is a movable plate 593. On one side of the movable plate 593, there is a brush 594. By driving the connecting block 592 to move with the first sliding table 53, the connecting block 592 drives the brush 594 on one side of the movable plate 593 to move along the first dust-proof net 591. The dust on the first dust-proof net 591 is cleaned through the brush 594, and the blockage of the first dust-proof net 591 can be prevented.

[0032] During the use process, the staff starts the first motor 51. The first motor 51 drives the threaded rod 52 to rotate. The threaded rod 52 drives the first sliding table 53 to move along the chute 58 through the guide slider 57. The first sliding table 53 drives the fan blade 56 on the third motor 55 to move up and down through the horizontal movement structure 54. Then, the second motor 542 is started. The second motor 542 drives the lead screw 543 to rotate. The lead screw 543 drives the second sliding table 544 to move along the guide rod 546. The second sliding table 544 drives the fan blade 56 on the third motor 55 to move back and forth through the L-shaped plate 545. By driving the fan blade 56 to rotate with the third motor 55, the air flow inside the cabinet body is accelerated, and heat dissipation treatment is performed on the electrical equipment at different positions inside the cabinet body, avoiding the increase of the temperature inside the photovoltaic cabinet, not only not causing damage to the electrical equipment, but also eliminating potential safety hazards such as the occurrence of cabinet body fires and explosions. At the same time, when the first sliding table 53 moves up and down, the first sliding table 53 drives the connecting block 592 to move. The connecting block 592 drives the brush 594 on one side of the movable plate 593 to move along the first dust-proof net 591. The dust on the first dust-proof net 591 is cleaned through the brush 594, which can not only prevent the blockage of the first dust-proof net 591, but also facilitate the cleaning of the first dust-proof net 591. Embodiment 2

[0033] Refer to Figures 1-4, which is the second embodiment of the present utility model. The difference between this embodiment and the first embodiment is that the quick-release component 6 includes a U-shaped limit plate 61. The U-shaped limit plate 61 is provided at one end of the cabinet body 1. A second dust-proof net 62 is provided inside the U-shaped limit plate 61. Card slots 63 are respectively provided on both sides of the second dust-proof net 62. Receiving plates 64 are respectively provided on both sides of the U-shaped limit plate 61. A wedge-shaped block 65 is provided inside the card slot 63. A sliding rod 66 is provided on one side of the wedge-shaped block 65. The sliding rod 66 penetrates to the outside of the receiving plate 64. A spring 67 is sleeved on the outer surface of the sliding rod 66. A pull plate 68 is provided at one end of the sliding rod 66.

[0034] Drive the sliding rod 66 to move through the pull plate 68. The sliding rod 66 drives the wedge-shaped block 65 to disengage from the inside of the card slot 63 and be received inside the receiving plate 64. Then, pull out the second dust-proof net 62 from the U-shaped limit plate 61 through the U-shaped handle 69, thereby facilitating the disassembly of the second dust-proof net 62.

[0035] A U-shaped handle 69 is provided on one side of the second dust-proof net 62. The spring 67 is provided between the receiving plate 64 and the pull plate 68. The tension of the spring 67 can drive the wedge-shaped block 65 back to the initial position.

[0036] During use, by pulling the pull plate 68, the pull plate 68 drives the sliding rod 66 to move. At the same time, the pull plate 68 stretches the spring 67 to generate tension in the spring 67. And the sliding rod 66 drives the wedge-shaped block 65 to disengage from the inside of the card slot 63 and be received inside the receiving plate 64. Then, pull out the second dust-proof net 62 from the U-shaped limit plate 61 through the U-shaped handle 69, thereby facilitating the disassembly of the second dust-proof net 62 and also facilitating the cleaning of the dust on the second dust-proof net 62. The tension of the spring 67 can drive the wedge-shaped block 65 back to the initial position.

[0037] The remaining structures are the same as those in Embodiment 1.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not limitations. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A low-voltage photovoltaic grid-connected cabinet, comprising a cabinet body (1), on one side of the cabinet body (1), cabinet doors (2) are symmetrically arranged, on one side of the cabinet doors (2), door handles (3) are arranged, and a set of hinges (4) are arranged between the cabinet body (1) and the cabinet doors (2), characterized in that: Inside the cabinet body (1), there is a heat dissipation and cleaning component (5), and a quick-release component (6) is provided at one end of the cabinet body (1). The heat dissipation and cleaning component (5) includes a first motor (51). A threaded rod (52) is provided at the output end of the first motor (51). A first sliding table (53) is provided on the threaded rod (52). A horizontal movement structure (54) is provided on one side of the first sliding table (53). A third motor (55) is provided at the top of the horizontal movement structure (54). The output end of the third motor (55) is drivingly connected to a fan blade (56). A guiding slider (57) is provided at one end of the first sliding table (53). A sliding groove (58) is formed on the inner wall of the cabinet body (1), and the guiding slider (57) is slidably connected to the sliding groove (58). A cleaning structure (59) is provided on the other side of the first sliding table (53).

2. A low-voltage photovoltaic grid-connected cabinet according to claim 1, characterized in that: The first motor (51) is arranged on the top of the cabinet body (1). The threaded rod (52) is rotatably connected to the cabinet body (1). A protective cover is provided outside the first motor (51).

3. The low-voltage photovoltaic grid-connected cabinet according to claim 2, characterized in that: The horizontal movement structure (54) includes a U-shaped plate (541). A second motor (542) is provided on one side of the U-shaped plate (541). The output end of the second motor (542) is drivingly connected to a lead screw (543). The lead screw (543) is threadedly connected to a second sliding table (544). An L-shaped plate (545) is provided at the top of the second sliding table (544). A guiding rod (546) is provided on the U-shaped plate (541), and the second sliding table (544) is slidably connected to the guiding rod (546).

4. A low-voltage photovoltaic grid-connected cabinet according to claim 3, characterized in that: The U-shaped plate (541) is arranged on one side of the first sliding table (53). The lead screw (543) is rotatably connected to the U-shaped plate (541). The third motor (55) is arranged on one side of the L-shaped plate (545).

5. A low-voltage photovoltaic grid-connected cabinet according to claim 4, characterized in that: The cleaning structure (59) includes a first dust-proof net (591). The first dust-proof net (591) is arranged at the other end of the cabinet body (1). A connecting block (592) is provided on the other side of the first sliding table (53). A movable plate (593) is provided on one side of the connecting block (592). A brush (594) is provided on one side of the movable plate (593).

6. The low-voltage photovoltaic grid-connected cabinet according to claim 5, wherein: The quick-release component (6) includes a U-shaped limiting plate (61). The U-shaped limiting plate (61) is arranged at one end of the cabinet body (1). A second dust-proof net (62) is arranged inside the U-shaped limiting plate (61). Card slots (63) are respectively provided on both sides of the second dust-proof net (62). Receiving plates (64) are respectively provided on both sides of the U-shaped limiting plate (61). A wedge-shaped block (65) is arranged inside the card slot (63). A sliding rod (66) is provided on one side of the wedge-shaped block (65). The sliding rod (66) penetrates to the outside of the receiving plate (64). A spring (67) is sleeved on the outer surface of the sliding rod (66). A pulling plate (68) is provided at one end of the sliding rod (66).

7. A low-voltage photovoltaic grid-connected cabinet according to claim 6, characterized in that: A U-shaped handle (69) is provided on one side of the second dust-proof net (62). The spring (67) is arranged between the receiving plate (64) and the pulling plate (68).

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