Converter device for photovoltaic energy storage

Abstract

The utility model discloses a converter device for photovoltaic energy storage, which comprises a cabinet body, the front surface of the cabinet body is hinged with a sliding door, two sides of the cabinet body are respectively inserted with a cover plate, the inner walls of the two cover plates are fixedly connected with a cover body through bolts, and the inside of the cover body is provided with a dismounting mechanism. The utility model relates to the technical field of photovoltaic energy storage, according to the converter equipment for photovoltaic energy storage, through cooperation among the vertical column, the connecting plate, the sliding rod, the vertical column, the threaded column, the bevel gear set and the rotating disc, when a converter is maintained, the maintenance space is enlarged, maintenance is convenient, and the problem that when an existing converter equipment is maintained, the maintenance time is shortened is solved. In the prior art, a worker needs to open a sliding door to maintain a converter in a cabinet body, and because the converter can only be maintained through the position of the sliding door of the cabinet body and the internal space of the cabinet body is relatively narrow, the converter equipment for photovoltaic energy storage is inconvenient to maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic energy storage technical field, concretely is a kind of photovoltaic energy storage with current conversion equipment. BACKGROUND

[0002] Photovoltaic energy storage bidirectional converter is abbreviated as PCS, in electrochemical energy storage system, the device for realizing electric energy bidirectional conversion between battery system and grid or load.

[0003] For example, the PCS energy storage bidirectional converter for photovoltaic power station of application announcement number CN217159535U includes base, the top of the base is fixedly connected with shell, shell is equipped with converter body in;Although the above document can realize the water cooling and air cooling heat dissipation of bidirectional converter, thereby improve the heat dissipation effect of bidirectional converter, thereby prolong the service life of bidirectional converter;

[0004] However, the existing current conversion equipment needs to open the sliding door by the staff to maintain the current converter inside the cabinet when maintaining, since the current converter can only be maintained through the position of the cabinet sliding door, and the space inside the cabinet is also relatively small, so it is not convenient to maintain the photovoltaic energy storage current conversion equipment. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of photovoltaic energy storage current conversion equipment, solve the existing current conversion equipment when maintaining, need staff to open the sliding door, the current converter inside the cabinet is maintained, since the current converter can only be maintained through the position of the cabinet sliding door, and the space inside the cabinet is also relatively small, so it is not convenient to maintain the photovoltaic energy storage current conversion equipment problem.

[0006] In order to achieve the above object, the utility model discloses a kind of current conversion equipment for photovoltaic energy storage, including cabinet, the front of the cabinet is hinged with a sliding door, the two sides of the cabinet are all inserted with cover plate, the inner wall of two The cover plate is fixedly connected with cover by bolt, the inside of the cover is provided with dismounting mechanism, the dismounting mechanism includes: vertical column, is inserted in the inner wall of the cabinet, and penetrates the cover, and is movably connected with the cover;Connecting plate is fixedly connected to the one end of the vertical column away from the cabinet;Stand is fixedly connected to the side of the connecting plate away from the vertical column;Threaded column is threadedly connected to the inner wall of the stand, and is rotatably connected to the inner wall of the cover by bearing;Bevel gear set is fixedly connected to the outer wall of the threaded column away from the stand;Rotary disc is fixedly connected to the side of the bevel gear set away from the threaded column, and is rotatably connected to the inner wall of the cover plate by bearing;Protection assembly is arranged at the outside of the cover plate;Wherein, the bevel gear set is driven under the rotary disc, so that the threaded column drives the stand to move, so that the connecting plate drives the vertical column to leave the inner wall of the cabinet, and the cover plate is disassembled, increase the space of inverter maintenance, through the protection assembly, the rotary disc can be covered, prevent staff from accidentally touching the rotary disc, so as to affect the stability of the cover plate.

[0007] Preferably, the protection assembly includes: a horizontal column fixedly connected to the side of the cover plate away from the cover; an outer shell fitted to the outer wall of the horizontal column and fitted to the side of the cover plate away from the cover; a clamping block clamped to the inner wall of the outer shell and penetrating the horizontal column and movably connected to the horizontal column; a spring having two ends fixedly connected to the inner wall of the horizontal column and the end of the clamping block away from the outer shell, respectively; wherein the outer shell is inserted into two adjacent horizontal columns, at this time the spring drives the clamping block to be inserted into the outer shell, the outer shell is fixed, the rotary disc is covered, to prevent staff from accidentally touching the rotary disc, so as to affect the stability of the cover plate.

[0008] Preferably, the inner wall of the connecting plate is slidably clamped with a slide rod, and the top of the slide rod is fixedly connected to the inner wall of the cover.

[0009] Preferably, the two sides of the cover plate are fixedly connected with positioning plates, and the outer wall of the positioning plate is fitted to the outer wall of the cabinet.

[0010] Preferably, a first dust screen is installed on the inner wall of the cabinet, and a second dust screen is installed on the front of the sliding door.

[0011] Beneficial effects

[0012] The utility model provides a kind of current conversion equipment for photovoltaic energy storage.It has the following beneficial effects: the current conversion equipment for photovoltaic energy storage, through the cooperation between vertical column, connecting plate, slide bar, stand, threaded column, bevel gear set and rotating disc, when the converter is maintained, the maintenance space becomes larger, it is convenient to maintain, solve the problem that the current conversion equipment in the prior art needs to be opened by the staff when being maintained, the converter inside the cabinet is maintained, since the converter can only be maintained through the position of cabinet door, and the space inside the cabinet is also relatively narrow, so it is not convenient to maintain the current conversion equipment for photovoltaic energy storage.

[0013] Through the cooperation between shell, clamping block, spring and cross column, the shell covers the rotating disc, prevents the rotating disc from being accidentally touched by the staff, thereby affecting the stability of the cover plate, solves the problem that the rotating disc is outside the cover plate, and the rotating disc may be touched when the staff moves, causing the rotating disc to rotate, which may affect the stability of the cover plate. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is Figure 1 schematic diagram of appearance;

[0016] Figure 3 It is Figure 1 schematic diagram of the structure of threaded column, vertical column and bevel gear set in the utility model;

[0017] Figure 4 It is Figure 3 schematic diagram of the structure of rotating disc, shell and clamping block in the utility model.

[0018] In the drawing: 1, cabinet; 11, first dust screen; 2, door; 21, second dust screen; 3, cover plate; 31, positioning plate; 4, dismounting mechanism; 41, vertical column; 42, connecting plate; 421, slide bar; 43, stand; 44, threaded column; 45, bevel gear set; 46, rotating disc; 47, protection assembly; 471, shell; 472, clamping block; 473, spring; 474, cross column; 5, cover body. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0020] The existing variable flow equipment needs workers to open the sliding door to maintain the variable flow device inside the cabinet when maintaining, and the variable flow device can only be maintained through the position of the sliding door of the cabinet, and the space inside the cabinet is relatively small, so it is inconvenient to maintain the variable flow equipment for photovoltaic energy storage.

[0021] Therefore, the utility model provides a kind of variable flow equipment for photovoltaic energy storage, through the cooperation between vertical column, connecting plate, slide bar, stand, threaded column, bevel gear set and rotary disc, when maintaining variable flow device, maintenance space becomes large, it is convenient to maintain, solve the existing variable flow equipment needs workers to open the sliding door to maintain the variable flow device inside the cabinet when maintaining, and the variable flow device can only be maintained through the position of the sliding door of the cabinet, and the space inside the cabinet is relatively small, so it is inconvenient to maintain the variable flow equipment for photovoltaic energy storage.

[0022] Through the personnel in the field, the parts in the case are sequentially connected, and the specific connection and operation sequence should be referred to the working principle, and the detailed connection means is the public known technology in the field, and the working principle and process are mainly introduced.

[0023] Example 1, by Figures 1-4It can be seen that a photovoltaic energy storage converter device in this case includes a cabinet 1, an inverter is installed inside the cabinet 1, and a sliding door 2 is hinged on the front of the cabinet 1. When the inverter inside the cabinet 1 needs to be repaired, the maintenance personnel opens the two sliding doors 2. Cover plates 3 are inserted on both sides of the cabinet 1. The inner walls of the two cover plates 3 are fixedly connected to the cover body 5 by bolts. A disassembly mechanism 4 is provided inside the cover body 5. The disassembly mechanism 4 includes: a vertical column 41, which is inserted into the inner wall of the cabinet 1. The vertical column 41 leaves the socket on the inner wall of the cabinet 1. The maintenance personnel stops rotating the rotating disks 46 on both sides in turn, and the maintenance personnel removes the covers on both sides. After the plate 3 is removed, the converter maintenance begins. After the maintenance is completed, the maintenance personnel re-insert the cover plates 3 on both sides into the two sides of the cabinet 1, rotate the rotating disk 46 in the opposite direction, and re-insert the vertical column 41 into the socket on the inner wall of the cabinet 1, and re-fix the cover plate 3 to the cabinet 1, and pass through the cover 5 and movably connect with the cover 5. The vertical column 41 moves in the cover 5, and the connecting plate 42 is fixedly connected to the end of the vertical column 41 away from the cabinet 1. The connecting plate 42 drives the vertical column 41 to move. The column 43 is fixedly connected to the side of the connecting plate 42 away from the vertical column 41, and the column 43 drives the connecting plate 42 to move. The threaded column 44 is threadedly connected to the inner wall of the column 43. The threaded column 44 drives the column 43 to move and is rotatably connected to the inner wall of the cover body 5 through the bearing. The bevel gear set 45 includes a first bevel gear and a second bevel gear. The first bevel gear is fixedly connected to the end of the rotating disk 46. The bottom of the first bevel gear is meshed with the second bevel gear. The inner wall of the second bevel gear is fixedly connected to the outer wall of the threaded column 44. The threaded column 44 is fixedly connected to the outer wall of the column 43 away from the threaded column 44. The bevel gear set 45 drives the threaded column 44 to rotate. The rotating disk 46 is fixedly connected to the bevel gear set 45 away from the threaded column 44. One side, and then the maintenance personnel turn the rotating disks 46 on both sides in turn, the rotating disk 46 drives the bevel gear set 45 to rotate, and is rotatably connected to the inner wall of the cover plate 3 through the bearing. The protective component 47 is arranged on the outside of the cover plate 3. Among them, the bevel gear set 45 is driven by the rotating disk 46 to make the threaded column 44 drive the column 43 to move, so that the connecting plate 42 drives the vertical column 41 to leave the inner wall of the cabinet 1, and the cover plate 3 is removed to increase the space for converter maintenance. The protective component 47 can cover the rotating disk 46 to prevent the staff from accidentally touching the rotating disk 46, thereby affecting the stability of the cover plate 3;

[0024] In the specific implementation process, it is particularly worth pointing out that the inside of the cabinet body 1 is provided with a current transformer, when the current transformer inside the cabinet body 1 needs to be repaired, the two doors 2 are opened, and then the maintenance personnel rotate the two rotating discs 46 in turn, the rotating disc 46 drives the bevel gear set 45 to rotate, the bevel gear set 45 includes a first bevel gear and a second bevel gear, the first bevel gear is fixedly connected to the end of the rotating disc 46, the bottom of the first bevel gear is meshedly connected with the second bevel gear, the inner wall of the second bevel gear is fixedly connected to the outer wall of the threaded column 44, the bevel gear set 45 drives the threaded column 44 to rotate, the threaded column 44 drives the vertical column 43 to move, the vertical column 43 drives the connecting plate 42 to move, the connecting plate 42 drives the vertical column 41 to move, the vertical column 41 moves in the cover body 5, the vertical column 41 leaves the insertion hole of the inner wall of the cabinet body 1, the maintenance personnel stop rotating the two rotating discs 46 in turn, the maintenance personnel disassemble the two cover plates 3, and start repairing the current transformer, after the repair is completed, the maintenance personnel insert the two cover plates 3 into the two sides of the cabinet body 1, rotate the rotating disc 46 in the reverse direction, so that the vertical column 41 is inserted into the insertion hole of the inner wall of the cabinet body 1 again, and the cover plate 3 is fixed to the cabinet body 1 again, so that the maintenance space is enlarged when the current transformer is repaired, and the maintenance is facilitated;

[0025] Further, the protection assembly 47 comprises: a horizontal column 474 fixedly connected to one side of the cover plate 3 away from the cover body 5, an outer shell 471 attached to the outer wall of the horizontal column 474, the maintenance personnel move the outer shell 471, the upper and lower sides of the outer shell 471 are attached to two adjacent horizontal columns 474, and are attached to one side of the cover plate 3 away from the cover body 5, a clamping block 472 clamped to the inner wall of the outer shell 471, at this time, the outer shell 471 extrudes the clamping block 472, the clamping block 472 moves in the horizontal column 474, the clamping block 472 extrudes the spring 473, and penetrates through the horizontal column 474 and is movably connected with the horizontal column 474, the spring 473 is made of carbon spring steel, the spring constant of the spring 473 is selected according to actual requirements, and the spring constant meets the work, the two ends are respectively fixedly connected to the inner wall of the horizontal column 474 and one end of the clamping block 472 away from the outer shell 471, when the clamping block 472 is moved to the clamping groove in the inner wall of the outer shell 471, the spring 473 rebounds, and the clamping block 472 is inserted into the clamping groove in the inner wall of the outer shell 471 through the elastic force, so that the outer shell 471 is fixed, when the maintenance personnel rotate the rotating disc 46, the maintenance personnel pull the outer shell 471 to take it down, wherein the outer shell 471 is inserted into two adjacent horizontal columns 474, at this time the spring 473 drives the clamping block 472 to be inserted into the outer shell 471, so as to fix the outer shell 471, cover the rotating disc 46, prevent the rotating disc 46 from being accidentally touched by the workers, and thus affect the stability of the cover plate 3;

[0026] In the specific implementation process, it is particularly worth pointing out that the material of the spring 473 is carbon spring steel, and the elastic coefficient of the spring 473 is selected according to actual needs, which meets the work. When the maintenance personnel finish repairing the converter, the maintenance personnel move the shell 471, and the upper and lower sides of the shell 471 are attached to two adjacent horizontal columns 474. At this time, the shell 471 extrudes the clamping block 472, and the clamping block 472 moves in the horizontal column 474. When the clamping block 472 is extruded by the spring 473 and moved into the clamping groove on the inner wall of the shell 471, the spring 473 rebounds, and the clamping block 472 is inserted into the clamping groove on the inner wall of the shell 471 by the elastic force, so as to fix the shell 471. When the maintenance personnel rotates the rotating disc 46, the maintenance personnel pulls the shell 471 to take it down, realizes that the shell 471 covers the rotating disc 46, prevents the staff from accidentally touching the rotating disc 46, and thus affects the stability of the cover plate 3;

[0027] Further, the inner wall of the connecting plate 42 is slidably connected with the slide rod 421. When the connecting plate 42 moves, the connecting plate 42 moves along the two slide rods 421, so as to limit the connecting plate 42. The top of the slide rod 421 is fixedly connected to the inner wall of the cover body 5;

[0028] In the specific implementation process, it is particularly worth pointing out that when the connecting plate 42 moves, the connecting plate 42 moves along the two slide rods 421, so as to limit the connecting plate 42;

[0029] Specifically, the inside of the cabinet 1 is provided with a converter. When the converter inside the cabinet 1 needs to be repaired, the two doors 2 are opened by the maintenance personnel, then the outer shell 471 is pulled off by the maintenance personnel, after finishing, the two rotating discs 46 are rotated in sequence by the maintenance personnel, the rotating discs 46 drive the bevel gear sets 45 to rotate, the bevel gear sets 45 drive the threaded columns 44 to rotate, the threaded columns 44 drive the vertical columns 43 to move, the vertical columns 43 drive the connecting plates 42 to move, the connecting plates 42 move along the two slide rods 421, the connecting plates 42 drive the vertical columns 41 to move, the vertical columns 41 move in the cover body 5, the vertical columns 41 are out of the insertion holes in the inner wall of the cabinet 1, the two rotating discs 46 are stopped by the maintenance personnel in sequence, the two cover plates 3 are disassembled by the maintenance personnel, and the converter is repaired. After the repair is completed, the two cover plates 3 are inserted into the two sides of the cabinet 1 by the maintenance personnel, the rotating discs 46 are rotated in the reverse direction, so that the vertical columns 41 are inserted into the insertion holes in the inner wall of the cabinet 1 again, the cover plates 3 are fixed to the cabinet 1 again, after finishing, the outer shell 471 is moved by the maintenance personnel, the upper and lower sides of the outer shell 471 are attached to the two adjacent horizontal columns 474, at this time, the outer shell 471 extrudes the clamping blocks 472, the clamping blocks 472 move in the horizontal columns 474, the clamping blocks 472 extrude the springs 473, the clamping blocks 472 are moved to the clamping grooves in the inner wall of the outer shell 471, the springs 473 rebound, the clamping blocks 472 are inserted into the clamping grooves in the inner wall of the outer shell 471 through the elastic force, and the outer shell 471 is fixed. When the converter is repaired, the maintenance space is larger, and the repair is facilitated.

[0030] In example 2, by Figures 1-3 It can be known that the two sides of the cover plate 3 are fixedly connected with the positioning plates 31. When the cover plate 3 is fixed to the cabinet 1 again by the maintenance personnel, the two positioning plates 31 on the upper and lower sides of the cover plate 3 are driven by the cover plate 3, the positioning plates 31 are attached to the cabinet 1, the cover plate 3 is positioned, the vertical column 41 is aligned with the insertion hole in the inner wall of the cabinet 1, and the outer wall of the positioning plate 31 is attached to the outer wall of the cabinet 1.

[0031] In the specific implementation process, it is particularly pointed out that when the cover plate 3 is fixed to the cabinet 1 again by the maintenance personnel, the two positioning plates 31 on the upper and lower sides of the cover plate 3 are driven by the cover plate 3, the positioning plates 31 are attached to the cabinet 1, the cover plate 3 is positioned, and the vertical column 41 is aligned with the insertion hole in the inner wall of the cabinet 1.

[0032] Further, the inner wall of the cabinet 1 is provided with the first dust screen 11, the number of the first dust screen 11 and the second dust screen 21 is two, the front of the door 2 is provided with the second dust screen 21, and the first dust screen 11 and the second dust screen 21 can block dust in the external air, so that the air enters the cabinet 1 and the air in the cabinet 1 circulates.

[0033] In the implementation process, it is worth pointing out that the number of the first dust screen 11 and the second dust screen 21 is two, the first dust screen 11 and the second dust screen 21 can block the dust in the external air, so that the air enters the cabinet 1, and the air in the cabinet 1 is circulated.

[0034] Specifically, when the maintenance personnel re-fix the cover plate 3 to the cabinet 1, the cover plate 3 drives the upper and lower positioning plates 31, the positioning plates 31 are attached in the cabinet 1, the positioning of the cover plate 3 is realized, the vertical column 41 is aligned with the insertion hole of the inner wall of the cabinet 1, the first dust screen 11 and the second dust screen 21 can block the dust in the external air, so that the air enters the cabinet 1, and the air in the cabinet 1 is circulated.

[0035] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the statement "including a limited element" does not exclude the existence of another identical element in the process, method, article or equipment including the element.

[0036] In the utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, it can be the communication or interaction relationship between two elements, unless otherwise explicitly limited, the above-mentioned terms in the utility model can be understood according to the specific meaning of the above-mentioned terms in the utility model according to the specific circumstances for ordinary skilled in the art.

[0037] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A power conversion device for photovoltaic energy storage, comprising a cabinet (1), characterized in that: The front of the cabinet (1) is hinged with a sliding door (2), both sides of the cabinet (1) are inserted with a cover plate (3), the inner wall of the two cover plates (3) is fixedly connected with a cover body (5) through a bolt, the inside of the cover body (5) is provided with a dismounting mechanism (4), the dismounting mechanism (4) comprises: A vertical column (41) is inserted into the inner wall of the cabinet (1) and penetrates through the cover body (5) and is movably connected with the cover body (5); A connecting plate (42) is fixedly connected to one end of the vertical column (41) away from the cabinet (1); A vertical column (43) is fixedly connected to one side of the connecting plate (42) away from the vertical column (41); A threaded column (44) is threadedly connected to the inner wall of the vertical column (43) and is rotatably connected to the inner wall of the cover body (5) through a bearing; A bevel gear set (45) is fixedly connected to the outer wall of the threaded column (44) away from the vertical column (43); A rotating disc (46) is fixedly connected to one side of the bevel gear set (45) away from the threaded column (44) and is rotatably connected to the inner wall of the cover plate (3) through a bearing; A protection assembly (47) is arranged outside the cover plate (3); Wherein, the bevel gear set (45) is driven by the rotating disc (46) to make the threaded column (44) drive the vertical column (43) to move, so that the connecting plate (42) drives the vertical column (41) to move away from the inner wall of the cabinet (1), and the cover plate (3) is dismounted, the space for maintenance of the converter is increased, and the rotating disc (46) can be covered by the protection assembly (47), so that the rotating disc (46) is prevented from being accidentally touched by the worker, thereby affecting the stability of the cover plate (3).

2. The power conversion device for photovoltaic energy storage according to claim 1, characterized in that: The protection assembly (47) comprises: A vertical column (474) is fixedly connected to one side of the cover plate (3) away from the cover body (5); An outer shell (471) is attached to the outer wall of the vertical column (474) and is attached to one side of the cover plate (3) away from the cover body (5); A clamping block (472) is clamped to the inner wall of the outer shell (471) and penetrates through the vertical column (474) and is movably connected with the vertical column (474); A spring (473) has two ends fixedly connected to the inner wall of the vertical column (474) and one end of the clamping block (472) away from the outer shell (471); Wherein, the outer shell (471) is inserted into two adjacent vertical columns (474), at this time the spring (473) drives the clamping block (472) to be inserted into the outer shell (471), the outer shell (471) is fixed, the rotating disc (46) is covered, and the rotating disc (46) is prevented from being accidentally touched by the worker, thereby affecting the stability of the cover plate (3).

3. The power conversion device for photovoltaic energy storage of claim 1, wherein: The inner wall of the connecting plate (42) is slidably clamped with a slide rod (421), and the top of the slide rod (421) is fixedly connected to the inner wall of the cover body (5).

4. The power conversion device for photovoltaic energy storage of claim 1, wherein: Both sides of the cover plate (3) are fixedly connected with a positioning plate (31), and the outer wall of the positioning plate (31) is attached to the outer wall of the cabinet (1).

5. The power conversion device for photovoltaic energy storage of claim 1, wherein: The inner wall of the cabinet body (1) is provided with a first dustproof net (11), and the front surface of the sliding door (2) is provided with a second dustproof net (21).

Images