Grid-connected controller of distributed power generation system

Abstract

The utility model discloses a grid-connected controller of a distributed power generation system, and relates to the technical field of controllers. The distributed power generation system grid-connected controller comprises a base and a grid-connected controller body, mounting holes are formed in the four corners of the base, two mounting blocks are fixedly mounted on the front face of the base, positioning rods are fixedly mounted at the upper ends and the lower ends of the front faces of the two mounting blocks, and meanwhile limiting plates are fixedly connected to the middles of the front faces of the two mounting blocks; according to the grid-connected controller, the clamping assemblies are compressed and slide along the inner walls of the limiting plates, at the moment, the clamping assemblies release limiting of the two connecting plates, then the grid-connected controller body is pulled, the two connecting plates are driven, the grid-connected controller body is driven to rotate, the grid-connected controller body is driven to rotate, the grid-connected controller body is driven to rotate, and the grid-connected controller body is driven to rotate. And the positioning rods and the limiting plates are separated respectively, so that the grid-connected controller main body can be disassembled, and the grid-connected controller main body can be conveniently overhauled.

Description

Technical Field

[0001] The utility model relates to the technical field of controllers, in particular to a grid-connected controller for a distributed power generation system. Background Art

[0002] Grid-connected controllers are widely used in various distributed power generation systems, including: 1. Distributed photovoltaic power generation systems: they can invert the direct current generated by solar panels into alternating current and feed it into the power grid; 2. Distributed wind power generation systems: they can regulate and control the alternating current generated by wind turbines to ensure that its frequency and phase are consistent with those of the power grid; 3. Other distributed power generation systems: such as gas-fired power generation systems and energy storage battery systems, all require grid-connected controllers to achieve connection and regulation with the power grid.

[0003] Regarding the above-mentioned related technologies, the inventors believe that the following defects exist: most of the existing technologies use expansion bolts to fix the controller, so when the controller is repaired, it is necessary to use tools to re-drill the control box for installation, which is cumbersome and has low maintenance efficiency. Therefore, we proposed a distributed power generation system grid-connected controller to solve the above-mentioned problems. Utility Model Content

[0004] In response to the deficiencies in the prior art, the utility model provides a distributed power generation system grid-connected controller, which solves the problem of using expansion bolts to fix the controller, requiring tools to re-drill holes in the control box for installation during controller maintenance, which is cumbersome and has low maintenance efficiency.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a distributed power generation system grid-connected controller, comprising a base and a grid-connected controller body, wherein the four corners of the base are provided with mounting holes, two mounting blocks are fixedly mounted on the front of the base, and positioning rods are fixedly mounted on the upper and lower ends of the front of the two mounting blocks, and the middle parts of the front of the two mounting blocks are fixedly connected to limit plates, and the insides of the two limit plates are plugged with clamping components;

[0006] Connecting plates are fixedly installed on the left and right sides of the grid-connected controller body. Sockets are provided at the upper and lower ends of the two connecting plates, and slots are provided in the middle of the two connecting plates. The two slots are equal in size to the two limit plates.

[0007] Preferably, the two mounting blocks are equal in length to the two connecting plates, and the two limiting plates are fixedly mounted at the middle of the front sides of the two mounting blocks, and the two limiting plates are equal to the two slots.

[0008] Preferably, the positioning rods are fixedly mounted on the upper and lower sides of the front faces of the two mounting blocks, and the outer diameters of the positioning rods are matched with the inner diameters of the jacks.

[0009] Preferably, second limiting grooves are provided at both upper and lower ends of the two limiting plates, and first limiting grooves are provided inside the two second limiting grooves and inside the two limiting plates, and two sliding grooves are provided on the tops of the two limiting plates.

[0010] Preferably, the first limiting groove, the sliding groove and the second limiting groove are connected, and the clamping assembly is respectively inserted into the inner walls of the first limiting groove, the sliding groove and the second limiting groove.

[0011] Preferably, the clamping assembly includes a limit block, which is slidably connected to the inner wall of the first limit groove, and a stop block is fixedly installed on the outer side of the limit block, which is inserted into the inner wall of the second limit groove and passes through the limit plate.

[0012] Preferably, a connecting rod is fixedly installed on the top of the limit block, and the connecting rod is slidably connected to the inner wall of the slide groove. At the same time, a spring is fixedly installed on the inner side of the limit block, and the other side of the spring is fixedly connected to one side of the inner wall of the first limit groove.

[0013] Beneficial effects

[0014] The utility model provides a distributed power generation system grid-connected controller. Compared with the existing technology, it has the following advantages:

[0015] 1. The distributed power generation system grid-connected controller compresses the clamping assembly and slides along the inner wall of the limit plate. At this time, the clamping assembly releases the limit on the two connecting plates, and then pulls the grid-connected controller body, driving the two connecting plates to separate from the positioning rod and the limit plate respectively, and then the grid-connected controller body can be disassembled, thereby facilitating the maintenance of the grid-connected controller body.

[0016] 2. The distributed power generation system grid-connected controller is constructed by installing two connecting plates on the front of the two mounting blocks, so that the positioning rod and the limit plate pass through the jack and the slot respectively. At this time, the two slots squeeze the clamping assembly and shrink along the inner wall of the limit plate, so that the back of the two connecting plates are in contact with the front of the two mounting blocks. Under the elastic action of the clamping assembly, the clamping assembly is reset, and the main body of the grid-connected controller can be installed on the front of the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the installation of the overall structure base of the utility model;

[0018] Figure 2 This is a schematic diagram of the appearance of the mounting hole of the overall structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the installation of the integral structure connecting plate of the utility model;

[0020] Figure 4 It is a cross-sectional schematic diagram of the integral structure limiting plate of the utility model.

[0021] In the figure: 1. Base; 2. Mounting hole; 3. Mounting block; 4. Positioning rod; 5. Limit plate; 51. First limit slot; 52. Slide slot; 53. Second limit slot; 6. Clamping assembly; 601. Limit block; 602. Connecting rod; 603. Spring; 604. Stop block; 7. Grid-connected controller body; 8. Connecting plate; 81. Socket; 82. Card slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 The utility model provides a technical solution: a distributed power generation system grid-connected controller, including a base 1 and a grid-connected controller body 7, with mounting holes 2 provided at the four corners of the base 1, two mounting blocks 3 fixedly installed on the front of the base 1, and positioning rods 4 fixedly installed on the upper and lower ends of the front of the two mounting blocks 3, while the middle of the front of the two mounting blocks 3 is fixedly connected with a limit plate 5, and the inside of the two limit plates 5 is plugged with a clamping assembly 6, and connecting plates 8 are fixedly installed on the left and right sides of the grid-connected controller body 7, with holes 81 provided at the upper and lower ends of the two connecting plates 8, and a card slot 82 provided in the middle of the two connecting plates 8, and the two card slots 82 are equal in size to the two limit plates 5.

[0024] The two mounting blocks 3 can be installed through the base 1. Since the four corners of the base 1 are provided with mounting holes 2, the base 1 can be fixed by using four expansion bolts to penetrate the four mounting holes 2. In addition, the upper and lower ends of the front faces of the two mounting blocks 3 are fixedly installed with positioning rods 4. At the same time, the middle part of the front faces of the two mounting blocks 3 is fixedly connected to the limiting plates 5. The insides of the two limiting plates 5 are plugged with clamping components 6. Therefore, when the maintenance of the grid-connected controller body 7 is completed, the grid-connected controller body 7 is held by hand and the two connecting plates 8 are installed on the front faces of the two mounting blocks 3. At this time, the positioning rod 4 and the limiting plate 5 penetrate the jack 81 and the slot 82 respectively, and the two slots 82 squeeze The clamping assembly 6 contracts along the inner wall of the limit plate 5. Under the elastic action of the clamping assembly 6, the back sides of the two connecting plates 8 are in contact with the front sides of the two mounting blocks 3. At this time, the clamping assembly 6 is reset, and the grid-connected controller body 7 can be fixed on the front side of the base 1. However, when the grid-connected controller body 7 is disassembled for maintenance, the clamping assembly 6 is compressed and slides along the inner wall of the limit plate 5. At this time, the clamping assembly 6 releases the limit on the two connecting plates 8, and then pulls the grid-connected controller body 7, driving the two connecting plates 8 to separate from the positioning rod 4 and the limit plate 5 respectively, so that the grid-connected controller body 7 can be disassembled, thereby facilitating the maintenance and installation of the grid-connected controller body 7.

[0025] See Figure 1 、 Figure 2 and Figure 3 The two mounting blocks 3 are of equal length to the two connecting plates 8, and the two limiting plates 5 are fixedly installed in the middle of the front of the two mounting blocks 3. At the same time, the two limiting plates 5 are equal to the two card slots 82, and the positioning rods 4 are fixedly installed on the upper and lower sides of the front of the two mounting blocks 3 respectively, and the outer diameter values of the positioning rods 4 are adapted to the inner diameter values of the sockets 81.

[0026] The positioning rod 4 and the limiting plate 5 can be installed separately through the mounting block 3. Since the two limiting plates 5 are equal to the two slots 82, and the outer diameter of the positioning rod 4 is adapted to the inner diameter of the socket 81, when the grid-connected controller body 7 is installed, the two connecting plates 8 are installed on the front of the two mounting blocks 3. At this time, the positioning rod 4 and the limiting plate 5 can pass through the socket 81 and the slot 82 respectively, thereby positioning the grid-connected controller body 7.

[0027] See Figure 3 、 Figure 4 , second limiting grooves 53 are provided at the upper and lower ends of the two limiting plates 5, and first limiting grooves 51 are provided on the inner sides of the two second limiting grooves 53 and inside the two limiting plates 5. At the same time, two sliding grooves 52 are provided on the tops of the two limiting plates 5. The first limiting groove 51, the sliding groove 52 and the second limiting groove 53 are connected, and the clamping components 6 are respectively inserted into the inner walls of the first limiting groove 51, the sliding groove 52 and the second limiting groove 53.

[0028] The clamping assembly 6 can be installed through the first limiting groove 51, the sliding groove 52 and the second limiting groove 53 respectively opened on the inner wall of the limiting plate 5. Therefore, when the grid-connected controller main body 7 is installed, when the two card slots 82 pass through the limiting plate 5, the upper and lower ends of the two card slots 82 compress the clamping assembly 6 respectively, so that the clamping assembly 6 shrinks along the inner walls of the first limiting groove 51, the sliding groove 52 and the second limiting groove 53 respectively. At this time, the back sides of the two connecting plates 8 are in contact with the front sides of the two mounting blocks 3. Under the elastic action of the clamping assembly 6, the clamping assembly 6 is reset, and the grid-connected controller main body 7 can be installed.

[0029] See Figure 3 、 Figure 4 The clamping assembly 6 includes a limit block 601, which is slidably connected to the inner wall of the first limit groove 51, and a stop block 604 is fixedly installed on the outer side of the limit block 601, and the stop block 604 is inserted into the inner wall of the second limit groove 53. At the same time, the stop block 604 passes through the limit plate 5, and a connecting rod 602 is fixedly installed on the top of the limit block 601, and the connecting rod 602 is slidably connected to the inner wall of the slide groove 52. At the same time, a spring 603 is fixedly installed on the inner side of the limit block 601, and the other side of the spring 603 is fixedly connected to one side of the inner wall of the first limit groove 51.

[0030] By means of the limit block 601 in the clamping assembly 6, the connecting rod 602, the spring 603 and the stopper 604 can be installed respectively. Since the stopper 604 is inserted into the inner wall of the second limit groove 53 and the stopper 604 passes through the limit plate 5, the connecting rod 602 is slidably connected to the inner wall of the slide groove 52, and the spring 603 is fixedly connected to the inner side of the limit block 601 and the inner wall of the first limit groove 51 respectively. Therefore, pulling the connecting rod 602 can respectively drive the limit block 601 and the stopper 604 to slide along the inner walls of the first limit groove 51, the slide groove 52 and the second limit groove 53 respectively, so that the stopper 604 releases the limit on the connecting plate 8. At this time, the spring 603 is compressed. At this time, pulling the grid-connected controller body 7 can make the two connecting plates 8 separate from the positioning rod 4 and the limit plate 5 respectively, so that the grid-connected controller body 7 can be disassembled for maintenance.

[0031] During operation, the two mounting blocks 3 can be installed through the base 1. Since the four corners of the base 1 are provided with mounting holes 2, the base 1 can be fixed by using four expansion bolts to penetrate the four mounting holes 2. In addition, the upper and lower ends of the front faces of the two mounting blocks 3 are fixedly installed with positioning rods 4. At the same time, the middle parts of the front faces of the two mounting blocks 3 are fixedly connected with the limiting plates 5. The interiors of the two limiting plates 5 are plugged with clamping components 6. Therefore, when the maintenance of the grid-connected controller body 7 is completed, the staff holds the grid-connected controller body 7 and installs the two connecting plates 8 on the front faces of the two mounting blocks 3. At this time, the positioning rod 4 and the limiting plate 5 penetrate the socket 81 and the slot 82 respectively. At the same time, the upper and lower ends of the two slots 82 The clamping assembly 6 is squeezed so that the clamping assembly 6 contracts along the inner wall of the limit plate 5. Under the elastic action of the clamping assembly 6, the back sides of the two connecting plates 8 are in contact with the front sides of the two mounting blocks 3. At this time, the clamping assembly 6 is reset, and the grid-connected controller body 7 can be fixed on the front side of the base 1. However, when the grid-connected controller body 7 is disassembled for maintenance, the clamping assembly 6 is compressed and slides along the inner wall of the limit plate 5. At this time, the clamping assembly 6 releases the limit on the two connecting plates 8, and then pulls the grid-connected controller body 7, driving the two connecting plates 8 to separate from the positioning rod 4 and the limit plate 5 respectively, so that the grid-connected controller body 7 can be disassembled, thereby facilitating the maintenance and installation of the grid-connected controller body 7.

[0032] The positioning rod 4 and the limiting plate 5 can be installed separately through the mounting block 3. Since the two limiting plates 5 are equal to the two slots 82, and the outer diameter of the positioning rod 4 is adapted to the inner diameter of the socket 81, when the grid-connected controller body 7 is installed, the two connecting plates 8 are installed on the front of the two mounting blocks 3. At this time, the positioning rod 4 and the limiting plate 5 can pass through the socket 81 and the slot 82 respectively, thereby positioning the grid-connected controller body 7.

[0033] The clamping assembly 6 can be installed through the first limiting groove 51, the sliding groove 52 and the second limiting groove 53 respectively opened on the inner wall of the limiting plate 5. Therefore, when the grid-connected controller main body 7 is installed, when the two card slots 82 pass through the limiting plate 5, the upper and lower ends of the two card slots 82 compress the clamping assembly 6 respectively, so that the clamping assembly 6 shrinks along the inner walls of the first limiting groove 51, the sliding groove 52 and the second limiting groove 53 respectively. At this time, the back sides of the two connecting plates 8 are in contact with the front sides of the two mounting blocks 3. Under the elastic action of the clamping assembly 6, the clamping assembly 6 is reset, and the grid-connected controller main body 7 can be installed.

[0034] By means of the limit block 601 in the clamping assembly 6, the connecting rod 602, the spring 603 and the stopper 604 can be installed respectively. Since the stopper 604 is inserted into the inner wall of the second limit groove 53 and the stopper 604 passes through the limit plate 5, the connecting rod 602 is slidably connected to the inner wall of the slide groove 52, and the spring 603 is fixedly connected to the inner side of the limit block 601 and the inner wall of the first limit groove 51 respectively. Therefore, pulling the connecting rod 602 can respectively drive the limit block 601 and the stopper 604 to slide along the inner walls of the first limit groove 51, the slide groove 52 and the second limit groove 53 respectively, so that the stopper 604 releases the limit on the connecting plate 8. At this time, the spring 603 is compressed. At this time, pulling the grid-connected controller body 7 can make the two connecting plates 8 separate from the positioning rod 4 and the limit plate 5 respectively, so that the grid-connected controller body 7 can be disassembled for maintenance.

[0035] In summary, the device compresses the clamping assembly 6 and slides along the inner wall of the limit plate 5. At this time, the clamping assembly 6 releases the limit on the two connecting plates 8, and then pulls the grid-connected controller body 7, driving the two connecting plates 8 to separate from the positioning rod 4 and the limit plate 5 respectively, and then the grid-connected controller body 7 can be disassembled, thereby facilitating the maintenance of the grid-connected controller body 7.

[0036] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A distributed power generation system grid-connected controller, comprising a base (1) and a grid-connected controller body (7), characterized in that: The base (1) is provided with mounting holes (2) at the four corners, and two mounting blocks (3) are fixedly mounted on the front of the base (1). Positioning rods (4) are fixedly mounted on the upper and lower ends of the front of the two mounting blocks (3). At the same time, the middle of the front of the two mounting blocks (3) is fixedly connected to a limiting plate (5), and the inside of the two limiting plates (5) is plugged with a clamping assembly (6); Connecting plates (8) are fixedly mounted on the left and right sides of the grid-connected controller body (7), and jacks (81) are provided at the upper and lower ends of the two connecting plates (8), and slots (82) are provided in the middle of the two connecting plates (8), and the two slots (82) are equal in size to the two limit plates (5).

2. The distributed power generation system grid-connected controller according to claim 1, characterized in that: The two mounting blocks (3) and the two connecting plates (8) are of equal length, and the two limiting plates (5) are fixedly mounted in the middle of the front sides of the two mounting blocks (3), and the two limiting plates (5) are equal to the two card slots (82).

3. The distributed power generation system grid-connected controller according to claim 1, characterized in that: The positioning rods (4) are fixedly mounted on the upper and lower sides of the front faces of the two mounting blocks (3), and the outer diameters of the positioning rods (4) are adapted to the inner diameters of the jacks (81).

4. The distributed power generation system grid-connected controller according to claim 1, characterized in that: The upper and lower ends of the two limiting plates (5) are each provided with a second limiting groove (53), and the inner sides of the two second limiting grooves (53) and the interior of the two limiting plates (5) are each provided with a first limiting groove (51), and the tops of the two limiting plates (5) are each provided with two sliding grooves (52).

5. The distributed power generation system grid-connected controller according to claim 4, characterized in that: The first limiting groove (51), the sliding groove (52) and the second limiting groove (53) are connected, and the clamping assembly (6) is respectively plugged into the inner walls of the first limiting groove (51), the sliding groove (52) and the second limiting groove (53).

6. The distributed power generation system grid-connected controller according to claim 5, characterized in that: The clamping assembly (6) includes a limit block (601), the limit block (601) is slidably connected to the inner wall of the first limit groove (51), and a stop block (604) is fixedly installed on the outer side of the limit block (601), the stop block (604) is plugged into the inner wall of the second limit groove (53), and the stop block (604) passes through the limit plate (5).

7. The distributed power generation system grid-connected controller according to claim 6, characterized in that: A connecting rod (602) is fixedly installed on the top of the limiting block (601), and the connecting rod (602) is slidably connected to the inner wall of the sliding groove (52). At the same time, a spring (603) is fixedly installed on the inner side of the limiting block (601), and the other side of the spring (603) is fixedly connected to one side of the inner wall of the first limiting groove (51).

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