Controller

Abstract

The controller comprises a control box, the control box comprises a box body, an end cover and a locking mechanism, the end cover comprises a cover plate and a partition plate, the box body is provided with a guide rail, the guide rail is provided with a guide groove allowing the partition plate to be inserted, and the locking mechanism comprises a push rod, a rotating rod rotationally connected with the box body and an elastic locking piece arranged between the push rod and the guide rail. One end of the rotating rod is movably connected with the push rod, the other end of the rotating rod is used for abutting against the partition plate, the elastic locking piece is provided with a locking part, the partition plate is provided with a clamping groove, and the locking part can penetrate through the guide rail to stretch into the clamping groove. The push rod and the rotating rod form a lever structure, after the push rod is stressed to extend out, the rotating rod is driven to push the partition plate out of the box body, the push rod drives the locking part to retreat from the clamping groove, unlocking of the end cover and the box body is achieved, and after the partition plate applies force to the rotating rod, the rotating rod drives the push rod to drive the locking part to be clamped into the clamping groove, and locking of the end cover and the box body is achieved. Therefore, the end cover and the box body can be conveniently and quickly mounted and dismounted.

Description

Technical Field

[0001] The invention relates to a controller and belongs to the technical field of photovoltaics. Background Art

[0002] Currently, photovoltaic (PV) sites use tracking mounts to improve power generation efficiency. Therefore, the controller for the tracking mount plays a key role in the entire PV system. In related technologies, the end caps are secured to the enclosure with bolts around the perimeter. When thousands of controllers need to be unpacked for maintenance, all bolts must be loosened, a cumbersome process that also creates the risk of missing any loosened bolts. Summary of the Invention

[0003] The object of the present invention is to provide a controller that facilitates quick installation and removal of the end cover and the box body.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A controller comprises a control box, the control box comprises a box body, an end cover and a locking mechanism, the end cover comprises a cover plate and a partition connected to the cover plate, the cover plate is used to close the opening of the box body, two opposite side walls of the box body are provided with guide rails inside the box body, the guide rails have guide grooves for the partitions to be inserted, the locking mechanism comprises a push rod, a rotating rod rotatably connected to the box body, and an elastic locking member provided between the push rod and the guide rails, one end of the rotating rod is movably connected to the push rod, and the other end of the rotating rod is used to abut one end of the partition away from the opening, the elastic locking member is provided with a locking portion, and the partition is provided with a card slot, and the locking portion can pass through the guide rail and extend into the card slot to form an abutment between the two;

[0006] The push rod and the rotating rod form a lever structure. After the push rod is extended by force, it drives the rotating rod to push the partition out of the box body. The push rod drives the locking part to exit the slot, thereby unlocking the end cover and the box body. When the partition applies force to the rotating rod, the rotating rod drives the push rod to drive the locking part to move and then engage in the slot, thereby locking the end cover and the box body.

[0007] As a further improved technical solution of the present invention, the push rod includes a rod portion and a head portion connected to the rod portion, the head portion is provided with a first hole, and a second hole is provided at one end of the rotating rod, the first axis passes through the first hole and the second hole in sequence, the first hole is an arc-shaped hole, and the first axis can move in the first hole.

[0008] As a further improved technical solution of the present invention, the rotating rod is a bent structure, a third hole is provided at the bent portion of the rotating rod, a second shaft is provided on the side wall of the box body, and the second shaft passes through the third hole.

[0009] As a further improved technical solution of the present invention, the rotating rod includes a first end, a second end and a main body connecting the first end and the second end, the third hole is provided in the main body, the second hole is provided in the first end, and the second end is provided with a supporting surface, and the supporting surface is inclined relative to the extension direction of the second end.

[0010] As a further improved technical solution of the present invention, the elastic locking member includes a fixing plate and a spring connected to the fixing plate, the fixing plate is fixedly connected to the push rod, the spring is abutted against the guide rail, and the spring is provided with the locking portion.

[0011] As a further improved technical solution of the present invention, the locking portion is V-shaped, and the two side portions of the locking portion opposite to the card slot are both inclined, and the groove surface of the card slot is an inclined surface and is adapted to the side portions.

[0012] As a further improved technical solution of the present invention, the guide rail includes a first rail and a second rail. Along the length direction of the guide rail, the first rail is close to the rotating rod relative to the second rail, the spring is in contact with the first rail, and the first rail is provided with a notch. The locking portion passes through the notch and extends into the slot.

[0013] As a further improved technical solution of the present invention, the controller includes a circuit board and a battery module, and the circuit board and the battery module are fixed on both sides of the partition in the thickness direction.

[0014] As a further improved technical solution of the present invention, a recess for accommodating the rotating rod is provided at one end of the partition away from the opening.

[0015] As a further improved technical solution of the present invention, the cover plate is provided with a through hole, and a tool for opening the box passes through the through hole to apply external force to the push rod.

[0016] Compared with the prior art, the controller provided by the present invention is provided with a locking mechanism, which includes a push rod, a rotating rod and an elastic locking piece. The push rod and the rotating rod constitute a lever structure and interact with the partition. After the push rod is subjected to force, the rotating rod can move the partition out of the box body, and the push rod drives the elastic locking piece to exit the slot, thereby unlocking the end cover and the box body. When the partition applies force to the rotating rod, the rotating rod drives the push rod to drive the elastic locking piece to move and then get into the slot, thereby locking the end cover and the box body. The above operation facilitates quick installation and disassembly of the end cover and the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the controller of the present invention in a locked state;

[0018] Figure 2 yes Figure 1 An exploded schematic diagram of the controller shown;

[0019] Figure 3 yes Figure 1 A detailed exploded schematic diagram of the controller shown;

[0020] Figure 4 yes Figure 1 A detailed exploded diagram of the controller from another perspective;

[0021] Figure 5 yes Figure 1 A detailed exploded diagram of the controller's main viewing angle is shown;

[0022] Figure 6 yes Figure 5 A magnified schematic diagram of area A in the middle;

[0023] Figure 7 yes Figure 1 A three-dimensional cross-sectional view of a portion of the structure of the controller shown;

[0024] Figure 8 yes Figure 1 A three-dimensional schematic diagram of a partial structure of the controller shown;

[0025] Figure 9 yes Figure 8 Schematic diagram of the decomposition;

[0026] Figure 10 yes Figure 9 Exploded diagram of the middle locking mechanism;

[0027] Figure 11 It is a cross-sectional view of the controller of the present invention in the unlocked state. DETAILED DESCRIPTION

[0028] The following exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. If there are several specific embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of devices, products and / or methods consistent with some aspects of the present invention as described in the claims of the present invention.

[0029] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the scope of protection of the present invention. The singular forms "a", "an", "the" or "the" used in the specification and claims of the present invention are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0030] It should be understood that the words used in the specification and claims of the present invention, such as "first", "second" and similar words, do not indicate any order, quantity or importance, but are only used to distinguish the names of features. Similarly, "one" or "an" and similar words do not indicate a quantity limitation, but rather indicate the existence of at least one. Unless otherwise specified, the words "front", "back", "upper", "lower" and similar words that appear in the present invention are only for the convenience of description and are not limited to a specific position or a spatial orientation. Words such as "include" or "comprises" are open-ended expressions, meaning that the elements appearing before "include" or "comprises" include the elements appearing after "include" or "comprises" and their equivalents, which does not exclude that the elements appearing before "include" or "comprises" may also include other elements. If "several" appears in the present invention, it means two or more.

[0031] The present invention discloses a controller which is applied in the field of photovoltaic control. Figures 1 to 11 As shown, the controller includes a control box 10, a circuit board 20, and a battery module 30. The circuit board 20 and the battery module 30 are arranged in the control box 10. The control box 10 includes a box body 1, an end cover 2, and a locking mechanism 3. The end cover 2 is connected to the box body 1, and the locking mechanism 3 is used to realize locking and unlocking of the end cover 2 and the box body 1.

[0032] The box body 1 is roughly in the shape of a rectangular parallelepiped. Figures 2 to 4 As shown, the box body 1 includes two oppositely disposed side walls 11, two oppositely disposed connecting walls 12, and an end wall 13. One connecting wall 12 connects one side of the two side walls 11, and the other connecting wall 12 connects the other side of the two side walls 11. The end wall 13 is perpendicularly connected to both the two side walls 11 and the two connecting walls 12, so that the box body 1 has an open end and a closed end.

[0033] Please refer to Figure 2 and Figure 3 As shown, the two opposite side walls 11 of the box body 1 are provided with guide rails 15 inside the box body 1, and the guide rails 15 have guide grooves 150 for the end cover 2 to be inserted and moved. Figure 8 As shown, the guide rail 15 provided on each side wall 11 includes a first rail 151 and a second rail 152. The space enclosed by the first rail 151 and the second rail 152 forms a guide groove 150. The first rail 151 is closer to the locking mechanism 3 than the second rail 152.

[0034] Please refer to Figure 2As shown, the end cover 2 includes a cover plate 21 and a partition plate 22 connected to the cover plate 21. The cover plate 21 is used to close the opening 101 of the box body 1. The partition plate 22 is used to fix the circuit board 20 and the battery module 30, so that the circuit board 20 and the battery module 30 can be moved out of the box body 1 along with the partition plate 22 when they need to be repaired or replaced. The partition plate 22 is inserted into the guide groove 150 and can move along the guide groove 150. The guide groove 150 guides the installation and removal of the partition plate 22. In addition, the guide rail 15 also supports the partition plate 22. Specifically, the cover plate 21 and the partition plate 22 can be formed as one piece, or they can be fixed together by welding or other means.

[0035] In some embodiments, the circuit board 20 and the battery module 30 are fixed to both sides of the separator 22 in the thickness direction, so that the circuit board 20 and the battery module 30 do not interfere with each other. Of course, in other possible embodiments, the circuit board 20 and the battery module 30 can also be fixed to the same side of the separator 22, which has the characteristics of a compact structure.

[0036] Please refer to Figure 1 and Figure 2 As shown, the cover plate 21 is provided with a handle 211, which is convenient for holding when the end cover 2 is installed and removed. The cover plate 21 is provided with a through hole 210, for the tool 40 to pass through the through hole 210 to apply an external force to the locking mechanism 3 or directly apply an external force to the locking mechanism 3 through the through hole 210 to achieve unlocking. In some embodiments, a tool 40 for opening the box is used to pass through the through hole 210 to apply an external force to the locking mechanism 3. Of course, in other possible embodiments, the locking mechanism 3 can also be extended, for example, the locking mechanism 3 partially extends out of the control box 10 through the through hole 210, so as to directly apply force to the locking mechanism 3. The tool 40 for opening the box is a special tool, which can ensure that only authorized operation and maintenance personnel holding the tool 40 can open the control box 10, thereby ensuring the uniqueness and safety of operation and maintenance.

[0037] In some embodiments, two sets of locking mechanisms 3 are provided corresponding to the guide rails 15 on both sides of the box body 1. Accordingly, the cover plate 21 is provided with two through holes 210.

[0038] Please refer to Figure 3As shown, each locking mechanism 3 includes a push rod 31, a rotating rod 32 rotatably connected to the box body 1, and an elastic locking member 33 disposed between the push rod 31 and the guide rail 15. One end of the rotating rod 32 is movably connected to the push rod 31, and the other end of the rotating rod 32 is used to abut the end of the partition 22 away from the opening 101. The elastic locking member 33 has a locking portion 333, and the partition 22 has a locking slot 221. The locking portion 333 can pass through the guide rail 15 and extend into the locking slot 221 to form an abutment between the two. During the process of disassembling the end cap 2 from the box body 1, the push rod 31 can drive the elastic locking member 33 to move away from the opening 101 under the action of an external force and compress the elastic locking member 33, causing the locking portion 333 to exit the locking slot 221. The push rod 31 simultaneously drives the rotating rod 32 to rotate in a first direction to push the partition 22 out of the box body 1. The first direction is a clockwise rotation direction. During the installation of the end cap 2 near the box body 1, the partition 22 pushes the rotating rod 32 to rotate in a second direction opposite to the first direction, driving the push rod 31 and the elastic locking member 33 toward the opening 101, causing the locking portion 333 to extend into the slot 221, thereby locking the end cap 2 with the box body 1. The second direction is a counterclockwise rotation direction. In the present invention, the push rod 31 and the rotating rod 32 form a lever structure and interact with the partition 22. When the push rod 31 is extended by force, it drives the rotating rod 32 to rotate clockwise around the box body 1. When the rotating rod 32 is rotated counterclockwise around the box body 1 by force, the rotating rod 32 drives the push rod 31 and the elastic locking member 33 to move back. The elastic locking member 33 moves back and forth, causing the locking portion 333 to exit or engage in the slot 221, thereby achieving unlocking or locking. Compared to a bolted connection, the present invention facilitates the rapid installation and removal of the end cap 2 and the box body 1 by providing a locking mechanism 3.

[0039] Please refer to Figure 4 As shown, the push rod 31 includes a rod portion 311 and a head portion 312 connected to the rod portion 311. A tool for opening the box passes through the through hole 210 to apply external force to the rod portion 311, or the rod portion 311 extends out of the through hole 210 and force is directly applied to the rod portion 311. When the end cap 2 and the box body 1 are locked, a gap 100 is left between the rod portion 311 and the cover plate 21. When the partition plate 22 is pushed into the box body 1, the push rod 31 is not blocked by the cover plate 21.

[0040] The rod 311 and the head 312 are integrally formed, or welded together. The head 312 is fan-shaped, with the bottom surface of the head 312 substantially flush with the bottom surface of the rod 311, and the top surface of the head 312 is higher than the top surface of the rod 311, and the top surface of the head 312 is an arcuate surface.

[0041] Please refer to Figure 5As shown, the head 312 is provided with a first hole 3121, and a second hole 321 is provided at one end of the rotating rod 32. The first shaft passes through the first and second holes 3121, connecting the rotating rod 32 to the push rod 31 via the first shaft. The first hole 3121 is an arc-shaped hole, extending from the bottom end of the head 312 to the top end, and the extension trajectory of the arc-shaped hole aligns with the curvature of the curved surface of the head 312. The second hole 321 is a circular hole, allowing the first shaft to move along the arc-shaped hole within the first hole 3121. The provision of the arc-shaped hole accommodates the dynamic changes between the push rod 31 and the rotating rod 32.

[0042] Please refer to Figure 4 As shown, the thickness of the head portion 312 in the left-right direction is less than the thickness of the rod portion 311. The head portion 312 and the rod portion 311 form a first side groove 313, and the rotating rod 32 is at least partially installed in the first side groove 313. This arrangement reduces the space occupied by the push rod 31 in the left-right direction.

[0043] Please refer to Figure 5 As shown, the rotating rod 32 is a bent structure, and the rotating rod 32 includes a first end 32a, a second end 32b and a main body 32c connecting the first end 32a and the second end 32b. The second hole 321 is provided at the first end 32a. The second end 32b is provided with a supporting surface 323, and the supporting surface 323 is inclined relative to the extension direction of the second end 32b. With such a configuration, in the locked state, the supporting surface 323 is almost in a vertical state, and forms a large area of ​​contact with the end face of the partition 22, that is, surface contact. When unlocking is required, it is convenient for the rotating rod 32 to apply force to the partition 22, and at the same time, the rotating rod 32 can push the partition 22 a long distance. If the inclined surface is not provided, an edge of the second end 32b forms a line contact with the partition 22, which is not conducive to applying force to the partition 22. After the rotating rod 32 pushes the partition 22 a small distance, the two separate from each other. Please refer to Figure 9 As shown, a third hole 322 is provided at the bend of the main body 32c, and a second shaft 16 is provided on the side wall 11 of the box body 1. The second shaft 16 passes through the third hole 322. The rotating rod 32 rotates around the second shaft 16, and the second shaft 16 is a support point for the rotating rod 32 to rotate.

[0044] In some embodiments, see Figure 4 As shown, a notch 222 is provided at one end of the partition plate 22 away from the opening 101 , and the rotating rod 32 abuts against the partition plate 22 at the notch 222 .

[0045] The main body 32c has an obtuse bending angle, which is the angle between the length of the first end 32a and the length of the second end 32b. This obtuse bending angle allows the rotating rod 32 to provide a larger range of movement for the partition 22.

[0046] Please refer to Figure 10 As shown, the rotating rod 32 is provided with a second side groove 320. The second side groove 320 extends to the first end portion 32a, thereby reducing the thickness of the first end portion 32a in the left-right direction. The second side groove 320 is used to mount the head portion 312. In this way, the sum of the thickness of the head portion 312 and the thickness of the first end portion 32a does not exceed the thickness of the rod portion 311.

[0047] The elastic locking member 33 is formed by folding a long metal sheet in half. The elastic locking member 33 does not extend beyond the rod portion 311 of the push rod 31 in the left-right direction. The elastic locking member 33 does not occupy any additional space in the left-right direction.

[0048] Please refer to Figure 4 and Figure 10 As shown, the elastic locking member 33 includes a fixing plate 331 and a spring plate 332 connected to the fixing plate 331. The fixing plate 331 is fixedly connected to the rod portion 311 of the push rod 31, for example, by welding, gluing or bolting. The length of the fixing plate 331 is greater than the length of the spring plate 332, and the fixing plate 331 and the rod portion 311 can form a larger connection area. The spring plate 332 abuts against the guide rail 15, and the spring plate 332 is provided with a locking portion 333. In the present invention, the spring plate 332 is folded to form a locking portion 333 that protrudes away from the fixing plate 331. Along the length direction of the guide rail 15, the first rail 151 is closer to the rotating rod 32 relative to the second rail 152, and the first rail 151 is extended to abut the spring plate 332. The second rail 152 is shortened relative to the first rail 151 to avoid the rotation of the rotating rod 32.

[0049] Please refer to Figure 5 As shown, the locking portion 333 is V-shaped, i.e., the locking portion 333 is wide at the top and narrow at the bottom, which facilitates sliding into or out of the slot 221. The two side portions 3331 of the locking portion 333 opposite the slot 221 are both inclined. The slot 221 has an inclined surface that matches the side portions 3331.

[0050] Please refer to Figures 7 to 9As shown, the first rail 151 is provided with a notch 1501, through which the locking portion 333 extends into the locking slot 221. The notch 1501 divides the first rail 151 into two parts: one part forms a guide groove portion 1511, which is used to form the guide groove 150 with the second rail 152; the other part forms a limit bar 1512, which is used to support the elastic piece 332. The first end surface 15121 of the limit bar 1512, which is exposed at the notch 1501, is an arcuate surface. This configuration facilitates the sliding of the locking portion 333 of the elastic locking member 33 into or out of the notch 1501. The second end surface 15111 of the guide groove portion 1511, which is opposite the first end surface 15121, is also an arcuate surface. When the locking portion 333 slides into the notch 1501, the free end of the elastic piece 332 does not contact the second end surface 15111. That is, along the length direction of the guide rail 15 , the free end of the elastic piece 332 does not extend beyond the notch 1501 , the free end of the elastic piece 332 does not abut against the guide slot 1511 , and no force is applied between the elastic piece 332 and the guide slot 1511 .

[0051] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of the present invention should be based on those skilled in the art. Although this specification describes the present invention in detail with reference to the above embodiments, those skilled in the art should understand that those skilled in the art can still modify or make equivalent substitutions to the present invention, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A controller, characterized in that: The invention comprises a control box (10), wherein the control box (10) comprises a box body (1), an end cover (2) and a locking mechanism (3), wherein the end cover (2) comprises a cover plate (21) and a partition plate (22) connected to the cover plate (21), wherein the cover plate (21) is used to close an opening (101) of the box body (1), wherein two opposite side walls (11) of the box body (1) are provided with guide rails (15) inside the box body (1), wherein the guide rails (15) have guide grooves (150) for inserting the partition plate (22), and wherein the locking mechanism (3) comprises a push rod (31), a guide rail (150) connected to the end cover (21), and a guide rail (150) connected to the end cover (21). The box body (1) is rotatably connected to a rotating rod (32) and an elastic locking member (33) provided between the push rod (31) and the guide rail (15), one end of the rotating rod (32) is movably connected to the push rod (31), and the other end of the rotating rod (32) is used to abut against one end of the partition (22) away from the opening (101), the elastic locking member (33) is provided with a locking portion (333), the partition (22) is provided with a card slot (221), and the locking portion (333) can pass through the guide rail (15) and extend into the card slot (221) to form abutment between the two; The push rod (31) and the rotating rod (32) form a lever structure. After the push rod (31) is extended by force, it drives the rotating rod (32) to push the partition (22) out of the box body (1). The push rod (31) drives the locking part (333) to withdraw from the card slot (221), thereby unlocking the end cover (2) and the box body (1). When the partition (22) applies force to the rotating rod (32), the rotating rod (32) drives the push rod (31) to drive the locking part (333) to move and then snap into the card slot (221), thereby locking the end cover (2) and the box body (1).

2. The controller according to claim 1, wherein The push rod (31) includes a rod portion (311) and a head portion (312) connected to the rod portion (311), the head portion (312) is provided with a first hole (3121), one end of the rotating rod (32) is provided with a second hole (321), a first shaft passes through the first hole (3121) and the second hole (321) in sequence, the first hole (3121) is an arc-shaped hole, and the first shaft can move in the first hole (3121).

3. The controller according to claim 2, wherein: The rotating rod (32) is a bent structure, and a third hole (322) is provided at the bent portion of the rotating rod (32). The side wall (11) of the box body (1) is provided with a second shaft (16), and the second shaft (16) is passed through the third hole (322).

4. The controller according to claim 3, wherein: The rotating rod (32) comprises a first end (32a), a second end (32b) and a main body (32c) connecting the first end (32a) and the second end (32b); the third hole (322) is provided in the main body (32c); the second hole (321) is provided in the first end (32a); the second end (32b) is provided with a supporting surface (323); and the supporting surface (323) is inclined relative to the extension direction of the second end (32b).

5. The controller according to claim 1, wherein: The elastic locking member (33) comprises a fixing plate (331) and a spring plate (332) connected to the fixing plate (331); the fixing plate (331) is fixedly connected to the push rod (31); the spring plate (332) abuts against the guide rail (15); and the spring plate (332) is provided with the locking portion (333).

6. The controller according to claim 5, wherein: The locking portion (333) is V-shaped, and the two side portions (3331) of the locking portion (333) opposite to the card slot (221) are both inclined, and the groove surface of the card slot (221) is an inclined surface and is adapted to the side portions (3331).

7. The controller according to claim 5, wherein: The guide rail (15) comprises a first rail (151) and a second rail (152). Along the length direction of the guide rail (15), the first rail (151) is closer to the rotating rod (32) relative to the second rail (152). The elastic piece (332) abuts against the first rail (151). The first rail (151) is provided with a notch (1501). The locking portion (333) passes through the notch (1501) and extends into the card slot (221).

8. The controller according to claim 1, wherein: The controller comprises a circuit board (20) and a battery module (30), wherein the circuit board (20) and the battery module (30) are fixed to both sides of the partition (22) in a thickness direction.

9. The controller according to any one of claims 1 to 8, characterized in that: An end of the partition (22) away from the opening (101) is provided with a recess (222) for accommodating the rotating rod (32).

10. The controller according to claim 1, wherein: The cover plate (21) is provided with a through hole (210), and a tool (40) for opening the box passes through the through hole (210) to apply external force to the push rod (31).

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