Photovoltaic grid-connected cabinet

Abstract

The present application relates to a photovoltaic grid-connected cabinet, which relates to the technical field of electrical cabinets, and comprises a cabinet body and a cabinet door, wherein one side edge of the cabinet door is hinged to the cabinet door, and the other side of the cabinet door is detachably connected to the cabinet door, and a plurality of heat dissipation holes are provided on the vertical side surface of the cabinet body; a base plate and a plurality of damping springs are provided below the bottom side of the cabinet body, and the two ends of the damping springs are respectively fixedly connected to the sides of the base plate and the cabinet body that are close to each other; elastic telescopic rods are hinged on both sides of the upper side surface of the base plate, and the elastic telescopic rods can be rotated to a state perpendicular to the upper side surface of the base plate and pressed against the bottom side of the cabinet body; in the present application, when the photovoltaic grid-connected cabinet is used, the damping spring can always play the role of shock-absorbing support for the grid-connected cabinet, and the staff can adjust the shock-absorbing performance of the photovoltaic grid-connected cabinet according to actual needs.

Description

Technical Field

[0001] The present application relates to the technical field of electrical cabinets, and in particular to a photovoltaic grid-connected cabinet. Background Art

[0002] Photovoltaic grid-connected cabinets, as an indispensable key component of photovoltaic power generation systems, play a core role in safely and reliably integrating photovoltaic power into the power system. Against the backdrop of the continued rise in global demand for clean energy, photovoltaic power generation, as a highly potential renewable energy generation method, is developing at an unprecedented speed in terms of grid-connected technology. Photovoltaic grid-connected cabinets, as a bridge connecting photovoltaic power generation systems and power grids, have an increasingly prominent strategic position and are of great significance in promoting the application and popularization of green energy.

[0003] However, in a photovoltaic grid-connected cabinet design under the existing technical framework, although it has basic structural functions, such as including components such as a cabinet body and a cabinet door, one side of the cabinet door is hinged to the cabinet door frame, and the other side is detachably connected through a traditional lock, and ventilation and heat dissipation vents are set on the side wall of the cabinet to ensure stable operation of the equipment, it still faces certain challenges in actual application.

[0004] Especially in the complex environment of the construction site, the photovoltaic grid-connected cabinet needs to withstand the frequent vibrations generated by the operation of the construction equipment. These vibrations may not only interfere with the normal working state of the electrical equipment inside the grid-connected cabinet, but also pose a potential threat to its structural stability, thereby affecting the operating efficiency and safety of the entire photovoltaic power generation system. In the long run, it may also accelerate the aging of equipment, shorten its service life, and increase maintenance costs, so there is room for improvement. Summary of the invention

[0005] The purpose of this application is to provide a photovoltaic grid-connected cabinet to solve the problem that the above-mentioned photovoltaic grid-connected cabinet is easily affected by external vibrations when used in a construction site, thereby causing poor performance of the internal electrical equipment.

[0006] The photovoltaic grid-connected cabinet provided in this application adopts the following technical solution:

[0007] A photovoltaic grid-connected cabinet comprises a cabinet body and a cabinet door, wherein one side edge of the cabinet door is hinged to the cabinet body, and the other side of the cabinet door is detachably connected to the cabinet body, and a plurality of heat dissipation holes are provided on the vertical side surface of the cabinet body; a base plate and a plurality of damping springs are provided below the bottom side of the cabinet body, and the two ends of the damping springs are respectively fixedly connected to the sides of the base plate and the cabinet body that are close to each other; elastic telescopic rods are hinged to both sides of the upper side surface of the base plate, and the elastic telescopic rods can be rotated to a state perpendicular to the upper side surface of the base plate and pressed against the bottom side of the cabinet body.

[0008] By adopting the above technical scheme, due to the coordinated arrangement of the damping spring and the elastic telescopic rod, the damping spring can always play the role of shock-absorbing support for the grid-connected cabinet, reduce the impact of external vibration on the electrical equipment installed inside the cabinet, and improve the corresponding assembly stability; when the buffering and shock-absorbing performance of the grid-connected cabinet is insufficient, the elastic telescopic rod can be rotated upward to a vertical state, so that the upper end of the elastic telescopic rod is pressed against the bottom side of the cabinet, so that the elastic telescopic rod plays the role of shock-absorbing support; when the shock-absorbing performance is sufficient, the elastic telescopic rod can be rotated out of the positioning groove and adjusted to a horizontal state; the staff can adjust the shock-absorbing performance of the photovoltaic grid-connected cabinet according to actual needs.

[0009] Optionally, a positioning recess is provided on the bottom side of the cabinet body for inserting the end of the elastic telescopic rod away from the base plate.

[0010] By adopting the above technical solution, when the upper end of the elastic telescopic rod abuts against the bottom side of the cabinet, due to the matching setting of the positioning groove, the upper end edge of the elastic telescopic rod can be inserted into the positioning groove on the bottom side of the cabinet, thereby improving the installation stability of the elastic telescopic rod in this state.

[0011] Optionally, a lower protective cover with an opening facing downward is fixedly provided on the outer edge of the opening of the heat dissipation hole of the cabinet, and an upper protective cover with an opening facing upward is fixedly provided on the inner edge of the opening of the heat dissipation hole of the cabinet.

[0012] By adopting the above technical solution, when the photovoltaic grid-connected cabinet is used outdoors, due to the combined setting of the upper protective cover and the lower protective cover, the possibility of external rainwater, dust or other impurities entering the cabinet through the opening of the heat dissipation holes is reduced, thereby improving the protective performance of the cabinet.

[0013] Optionally, a guide rod is provided on the outer side of the cabinet body to which the lower protective cover is fixedly provided for sliding in the vertical direction, a blocking plate located below the lower protective cover is fixedly provided on the outer periphery of the guide rod, and a control member for controlling the upward and downward movement of the blocking plate is provided outside the cabinet body.

[0014] By adopting the above technical solution, due to the combined arrangement of the guide rod, the blocking plate and the control component, when the outdoor environment is harsh (rainy, windy weather), the staff can use the control component to drive the guide rod and the blocking plate to move up, thereby blocking the opening of the lower protective cover to prevent external rain and dust from entering the cabinet through the opening of the lower protective cover; under other conditions, the blocking of the lower protective cover opening by the blocking plate can be released, so that the cabinet maintains normal heat dissipation performance.

[0015] Optionally, an extension rod is fixed on the outer periphery of the end of the elastic telescopic rod away from the base plate, and the extension rod is perpendicular to the length direction of the elastic telescopic rod. The control member is an adjustment plate hinged to the end of the extension rod away from the elastic telescopic rod; one side of the adjustment plate is in contact with the vertical side surface of the cabinet when the elastic telescopic rod abuts against the bottom side of the cabinet, and in this state, the side surface of the adjustment plate away from the base plate is tightly pressed against the lower end portion of the guide rod, and the sealing plate abuts against the bottom side of the lower protective cover.

[0016] By adopting the above technical solution, due to the installation arrangement of the extension rod and the adjustment plate, when the elastic telescopic rod is elastically supported in the vertical state, the adjustment plate can be rotated in the direction close to the cabinet, so that the upper edge of the adjustment plate in this state is squeezed and pressed against the lower end surface of the guide rod, so that the blocking plate is in contact with the bottom side of the lower protective cover, thereby sealing the lower opening of the lower protective cover.

[0017] Optionally, a waist-shaped adjustment hole is provided on the adjustment plate; when the elastic telescopic rod rotates to a state where its own axial direction is parallel to the upper side of the base plate, the side of the adjustment plate away from the extension rod is flush with the lower side of the base plate.

[0018] By adopting the above technical solution, when the elastic telescopic rod is rotated to a state parallel to the upper side of the base plate, the side of the adjustment plate away from the extension rod can be rotated to a state flush with the lower side of the base plate. Due to the opening of the waist-shaped adjustment hole on the adjustment plate, a screw can be used to pass through the waist-shaped adjustment hole and then screwed into the mounting screw hole on the horizontal plane, thereby enhancing the installation stability of the base plate and the horizontal plane.

[0019] Optionally, a guiding slope is provided on the lower edge of the guide rod.

[0020] By adopting the above technical solution, due to the setting of the guiding inclined surface, it is convenient for the adjustment plate to rotate along the guiding inclined surface to a state of abutting against the lower end surface of the guide rod.

[0021] Optionally, a guide block is fixedly provided on the outer surface of the cabinet, and a guide through hole for inserting a guide rod is opened on the guide block.

[0022] By adopting the above technical solution, the guide through hole on the guide block is used to limit the up and down sliding of the guide rod, thereby improving the stability of the guide rod during the reciprocating sliding process.

[0023] Optionally, a protruding plate is fixedly provided on the outer periphery of the guide rod, and a reset spring is provided on the outside of the cabinet with two ends respectively fixedly connected to the guide block and the protruding plate, and the reset spring is in an extruded state when the sealing plate abuts against the bottom side of the lower protective cover.

[0024] By adopting the above technical solution, due to the combined setting of the protruding plate and the return spring, after the adjustment plate stops squeezing the lower end of the guide rod, due to the setting of the return spring, the return spring will squeeze the protruding plate on the guide rod in this state, so that the guide rod and the blocking plate move downward quickly as a whole and release the blockage of the lower protective cover, thereby improving the corresponding performance.

[0025] Optionally, a limiting protrusion located above the guide block is fixedly provided on the outer periphery of the guide rod, and the bottom side of the limiting protrusion can abut against the upper side surface of the guide block as the guide rod slides downward.

[0026] By adopting the above technical solution, the limiting protrusion on the guide rod is used to limit the downward sliding stroke of the guide rod, thereby reducing the possibility of the guide rod sliding downward excessively and causing the return spring to be over-stretched.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] When used in photovoltaic grid-connected cabinets, the damping spring can always play the role of shock-absorbing support for the grid-connected cabinet, reduce the impact of external vibrations on the electrical equipment installed inside the cabinet, and improve the corresponding assembly stability; when the buffering and shock-absorbing performance of the grid-connected cabinet is insufficient, the staff can rotate the elastic telescopic rod upward to a vertical state, so that the upper end of the elastic telescopic rod is pressed against the bottom side of the cabinet, so that the elastic telescopic rod plays the role of shock-absorbing support; when the shock-absorbing performance is sufficient, the staff can rotate the elastic telescopic rod out of the positioning groove and adjust it to a horizontal state. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0031] Figure 2 It is a partial cross-sectional structural schematic diagram of the embodiment of the present application showing the installation and cooperation of the damping spring and the elastic telescopic rod;

[0032] Figure 3 It is a partial cross-sectional structural schematic diagram of the installation and cooperation of the guide rod and the baffle plate in the embodiment of the present application;

[0033] Figure 4 It is a partial cross-sectional structural schematic diagram of the installation and cooperation of the adjustment plate and the return spring in the embodiment of the present application;

[0034] Figure 5 It is a partial cross-sectional structural schematic diagram of an embodiment of the present application showing that the adjustment plate is rotated to be flush with the lower side surface of the substrate.

[0035] In the figure, 1, cabinet body; 11, heat dissipation hole; 12, upper protective cover; 13, lower protective cover; 14, positioning groove; 15, guide block; 151, guide through hole; 2, cabinet door; 3, base plate; 4, damping spring; 5, elastic telescopic rod; 51, extension rod; 6, guide rod; 61, blocking plate; 62, guide slope; 63, protruding plate; 64, limiting protrusion; 7, control part; 71, reset spring; 72, adjustment plate; 721, waist-shaped adjustment hole. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0037] Example:

[0038] Reference Figure 1 and Figure 2 A photovoltaic grid-connected cabinet comprises a cabinet body 1 and a cabinet door 2, wherein one side edge of the cabinet door 2 is hinged to the cabinet body 1, and the other side of the cabinet door 2 is detachably connected to the cabinet body 1 through a conventional lock structure, and two heat dissipation holes 11 are provided on two opposite vertical sides of the cabinet body 1;

[0039] A lower protective cover 13 with an opening facing downward is welded and fixed on the outer edge of the opening of the heat dissipation hole 11 of the cabinet body 1, and an upper protective cover 12 with an opening facing upward is welded and fixed on the inner edge of the opening of the heat dissipation hole 11 of the cabinet body 1, thereby reducing the possibility of external rainwater, dust or other impurities entering the interior of the cabinet body 1.

[0040] Reference Figure 2 A base plate 3 and five damping springs 4 are provided below the bottom side of the cabinet 1, wherein the five damping springs 4 are respectively located at the four corners and the center of the base plate 3, and the two ends of the damping spring 4 are respectively fixedly connected to the sides of the base plate 3 and the cabinet 1 that are close to each other;

[0041] Both sides of the upper side of the base plate 3 are hinged with elastic telescopic rods 5, and the bottom side of the cabinet 1 is provided with a positioning recess 14 for inserting the end of the elastic telescopic rod 5 away from the base plate 3, wherein the specific structures of the damping spring 4 and the elastic telescopic rod 5 are not repeated here;

[0042] When the buffering and shock-absorbing performance of the grid-connected cabinet is insufficient, the elastic telescopic rod 5 can be rotated upward to a vertical state, so that the upper end of the elastic telescopic rod 5 is inserted into the positioning groove 14 on the bottom side of the cabinet body 1, so that the elastic telescopic rod 5 plays a role of shock-absorbing support; when the shock-absorbing performance is sufficient, the elastic telescopic rod 5 can be rotated out of the positioning groove 14 and adjusted to a horizontal state.

[0043] Reference Figure 2 and Figure 3 Two guide rods 6 are slidably provided in the vertical direction on the outer surface of the cabinet 1 on which the lower protective cover 13 is fixed, and the two guide rods 6 are symmetrically arranged on the two side surfaces of the lower protective cover 13. A blocking plate 61 located below the lower protective cover 13 is fixed on the outer periphery of the guide rods 6, and a control part 7 for controlling the upward and downward movement of the blocking plate 61 is provided on the outside of the cabinet 1; the staff can choose whether to block the lower protective cover 13 according to the actual situation, so as to improve the performance of the photovoltaic grid-connected cabinet.

[0044] Reference Figure 2 and Figure 3 An extension rod 51 is fixedly arranged on the outer periphery of the end of the elastic telescopic rod 5 away from the base plate 3, wherein the extension rod 51 is perpendicular to the length direction of the elastic telescopic rod 5, the control member 7 is hinged to the adjustment of the end of the extension rod 51 away from the elastic telescopic rod 5, and a guide inclined surface 62 is arranged on the lower end edge of the guide rod 6;

[0045] One side of the adjustment plate 72 is in contact with the vertical side of the cabinet 1 when the elastic telescopic rod 5 abuts against the bottom side of the cabinet 1, and the adjustment plate 72 in this state away from the side of the base plate 3 can be rotated along the guide slope to a state of being tightly abutted against the lower end of the guide rod 6, and the blocking plate 61 abuts against the bottom side of the lower protective cover 13;

[0046] In the process of releasing the blockage of the lower protective cover 13, the adjustment plate 72 is rotated away from the cabinet 1, so that the adjustment plate 72 and the guide rod 6 are misaligned. At this time, the guide rod 6 drives the blocking plate to slide downward, so that the opening of the lower protective cover 13 is in an open state.

[0047] Reference Figure 3 and Figure 4 A guide block 15 is fixedly provided on the outer surface of the cabinet 1, wherein a guide through hole 151 is opened on the guide block 15 for inserting the guide rod 6; and a protruding plate 63 is symmetrically fixedly provided on the outer periphery of the guide rod 6, and a return spring 71 is provided on the outside of the cabinet 1, and its two ends are respectively fixedly connected to the guide block 15 and the protruding plate 63, and the return spring 71 is in a squeezed state when the blocking plate 61 abuts against the bottom side of the lower protective cover 13;

[0048] A limiting protrusion 64 located above the guide block 15 is fixedly provided on the outer periphery of the guide rod 6. The bottom side of the limiting protrusion 64 can abut against the upper side surface of the guide block 15 as the guide rod 6 slides downward; the limiting protrusion 64 limits the downward sliding stroke of the guide rod 6.

[0049] Reference Figure 5A waist-shaped adjustment hole 721 is provided on the adjustment plate 72; when the elastic telescopic rod 5 rotates to a state where its own axial direction is parallel to the upper side of the substrate 3, the side of the adjustment plate 72 away from the extension rod 51 can be rotated to a state flush with the lower side of the substrate 3. At this time, a screw is used to penetrate the waist-shaped adjustment hole 721 and then screwed into the mounting screw hole on the horizontal plane to enhance the installation stability of the substrate 3 and the horizontal plane.

[0050] The implementation principle of the embodiment of the present application is:

[0051] When the buffering and shock absorbing performance of the grid-connected cabinet is insufficient, the staff rotates the elastic telescopic rod 5 upward to a vertical state, so that the upper end of the elastic telescopic rod 5 is inserted into the positioning sink groove 14 at the bottom side of the cabinet body 1, so that the elastic telescopic rod 5 plays the role of shock absorbing support;

[0052] In this state, if the outside weather is bad, the adjustment plate 72 is rotated toward the cabinet 1, so that the adjustment plate 72 is in a state of being pressed against the lower end of the guide rod 6 along the guide slope 62, and the blocking plate 61 is in contact with the bottom side of the lower protective cover 13, so that the lower opening of the lower protective cover 13 is blocked, thereby reducing the possibility of external rainwater, dust or other impurities entering the cabinet 1;

[0053] In this state, if the outside weather is good, the adjustment plate 72 is rotated away from the cabinet 1, so that the adjustment plate 72 and the guide rod 6 are misaligned. At this time, the guide rod 6 drives the blocking plate to slide downward, so that the opening of the lower protective cover 13 is in an open state;

[0054] When the shock-absorbing performance is sufficient, the elastic telescopic rod 5 can be rotated out of the positioning groove 14 and adjusted to a horizontal state, and the adjustment plate 72 can be rotated away from the side of the extension rod 51 to be flush with the lower side of the substrate 3. At this time, a screw can be used to pass through the waist-shaped adjustment hole 721 and then screwed into the mounting screw hole on the horizontal plane, so as to enhance the installation stability of the substrate 3 and the horizontal plane.

[0055] Unless otherwise defined, the terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limit, but indicate that there is at least one. "Including" or "comprising" and other similar words mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0056] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A photovoltaic grid-connected cabinet, comprising a cabinet body (1) and a cabinet door (2), wherein one side edge of the cabinet door (2) is hinged to the cabinet body (1), and the other side of the cabinet door (2) is detachably connected to the cabinet body (1), and a plurality of heat dissipation holes (11) are provided on the vertical side surface of the cabinet body (1); It is characterized in that A base plate (3) and a plurality of damping springs (4) are provided below the bottom side of the cabinet (1), and the two ends of the damping springs (4) are respectively fixedly connected to the sides of the base plate (3) and the cabinet (1) that are close to each other; elastic telescopic rods (5) are hingedly connected to both sides of the upper side of the base plate (3), and the elastic telescopic rods (5) can be rotated to a state perpendicular to the upper side of the base plate (3) and pressed against the bottom side of the cabinet (1); The cabinet (1) is provided with a lower protective cover (13) with an opening facing downward on the outer edge of the opening of the heat dissipation hole (11), and an upper protective cover (12) with an opening facing upward is provided on the inner edge of the opening of the heat dissipation hole (11); a guide rod (6) is provided on the outer side surface of the cabinet (1) on which the lower protective cover (13) is provided so as to slide in a vertical direction, a blocking plate (61) is provided on the outer periphery of the guide rod (6) and is located below the lower protective cover (13); and a control member (7) for controlling the upward and downward movement of the blocking plate (61) is provided on the outside of the cabinet (1); An extension rod (51) is fixedly arranged on the outer periphery of the end of the elastic telescopic rod (5) away from the base plate (3); the extension rod (51) is perpendicular to the length direction of the elastic telescopic rod (5); the control member (7) is an adjustment plate (72) hinged to the end of the extension rod (51) away from the elastic telescopic rod (5); one side of the adjustment plate (72) is in contact with the vertical side surface of the cabinet (1) when the elastic telescopic rod (5) abuts against the bottom side of the cabinet (1); in this state, the side surface of the adjustment plate (72) away from the base plate (3) abuts against the lower end of the guide rod (6), and causes the blocking plate (61) to abut against the bottom side of the lower protective cover (13); The adjustment plate (72) is provided with a waist-shaped adjustment hole (721); when the elastic telescopic rod (5) rotates to a state where its own axial direction is parallel to the upper side of the base plate (3), the side of the adjustment plate (72) away from the extension rod (51) is flush with the lower side of the base plate (3).

2. A photovoltaic grid-connected cabinet according to claim 1, characterized in that: The bottom side of the cabinet (1) is provided with a positioning recessed groove (14) for the end of the elastic telescopic rod (5) away from the base plate (3) to be inserted.

3. A photovoltaic grid-connected cabinet according to claim 1, characterized in that: A guiding inclined surface (62) is provided on the lower end edge of the guiding rod (6).

4. A photovoltaic grid-connected cabinet according to claim 1, characterized in that: A guide block (15) is fixedly provided on the outer surface of the cabinet (1), and a guide through hole (151) for inserting a guide rod (6) is provided on the guide block (15).

5. A photovoltaic grid-connected cabinet according to claim 4, characterized in that: A protruding plate (63) is fixedly provided on the outer periphery of the guide rod (6), and a return spring (71) is provided on the outside of the cabinet (1) with two ends respectively fixedly connected to the guide block (15) and the protruding plate (63), and the return spring (71) is in a squeezed state when the blocking plate (61) abuts against the bottom side of the lower protective cover (13).

6. A photovoltaic grid-connected cabinet according to claim 4, characterized in that: A limiting protrusion (64) located above the guide block (15) is fixedly provided on the outer periphery of the guide rod (6), and the bottom side of the limiting protrusion (64) can abut against the upper side surface of the guide block (15) as the guide rod (6) slides downward.

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