Photovoltaic power electronic equipment

Abstract

The utility model relates to the technical field of photovoltaic equipment, and discloses photovoltaic power electronic equipment, which comprises a back plate, an equipment body, a first ring part and a second ring part, the back plate is provided with at least two first limiting parts; the equipment body is provided with a shaft body; the first ring part is fixed with the back plate and is sleeved on the shaft body; the shaft body and the equipment body can rotate relative to the first ring part; the second ring part is fixedly connected with the equipment body; the second ring part is provided with a second limiting part, and the second limiting part is detachably matched with any first limiting part, so that the equipment body is limited and fixed after rotating by a certain angle; the photovoltaic power electronic equipment provided by the utility model has various adjustable wire outlet directions and positions on the premise that the normal use of the equipment body is not influenced, so that the single photovoltaic power electronic equipment can be compatibly installed on photovoltaic assemblies in various different arrangement forms, extension cables do not need to be configured, the wire outlet directions and positions can be directly adjusted, and the installation is convenient. And the wire outlet direction is matched with the wiring of the photovoltaic module.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic equipment technical field, concretely relates to a photovoltaic power electronic device. BACKGROUND

[0002] Module Level Power Electronics (MLPE) equipment, mainly including micro inverter, shutdown ware and power optimizer etc., is the fine control equipment in solar photovoltaic system, can realize the realization of single or several photovoltaic module inverting, monitoring, power optimization and shutdown etc., thereby reaches the fine management of photovoltaic module.

[0003] In the related art, the outlet position and direction of the photovoltaic power electronic device are often fixed, but in the photovoltaic power station, the models and arrangement modes of the photovoltaic modules are often not unified, and the existing photovoltaic power electronic device is difficult to adapt to the installation of photovoltaic modules with multiple different arrangement forms, and often can only adapt to one arrangement mode. When adapting to other forms, an extension cable needs to be additionally configured, which increases the material cost; and the extension cable often has an angle, which affects the service life of the cable, and in addition, the use of the extension cable makes the cable arrangement of the power station more messy, affecting the appearance and maintenance. SUMMARY

[0004] Therefore, the utility model provides a photovoltaic power electronic device to solve the problem that the models and arrangement modes of photovoltaic modules are various, the outlet position and direction of the photovoltaic power electronic device are fixed, which leads to difficulty in adaptation in actual application, and the additional configuration of an extension cable increases the material cost and affects the service life of the cable.

[0005] The utility model provides a photovoltaic power electronic device, which comprises a back plate, a device body, a first ring part and a second ring part, at least two first limiting parts are arranged on the back plate, an axle body is arranged on one side of the device body matched with the back plate, the first ring part is sleeved on the axle body and detachably fixed with the back plate, the axle body and the device body can rotate relative to the first ring part, the second ring part is fixedly connected with the device body, the first ring part is assembled between the second ring part and the device body, a second limiting part is arranged on the second ring part, the second limiting part is detachably matched with any first limiting part, and the device body is limited and fixed after rotating by a certain angle.

[0006] In an optional embodiment, the first ring part is rotatably matched and sleeved with the axle body, the first ring part comprises an inner ring body and an outer ring body, the inner ring body is sleeved with the axle body, the outer ring body is arranged around the outer edge of the inner ring body, and the inner ring body is protrusively arranged relative to the outer ring body, and the second limiting part is arranged on the edge of the outer ring body.

[0007] In an alternative embodiment, the device body is recessed around the shaft on the side connected to the back plate to form a mounting groove, and part of the sidewall of the mounting groove is recessed to form at least two first positioning portions; the first ring portion is fitted in the mounting groove, and the edge of the first ring portion is provided with a second positioning portion; the second positioning portion is elastically matched with the first positioning portion.

[0008] In an alternative embodiment, the second positioning portion comprises a corresponding elastic arm and a clearance slot, the elastic arm is provided with a positioning protrusion, and the positioning protrusion is matched with the first positioning portion; the elastic arm is elastic.

[0009] In an alternative embodiment, the first surface of the first ring portion is matched with the mounting groove of the device body; the inner ring body is protrudingly arranged relative to the outer ring body at the second surface of the first ring portion; the second ring portion is sleeved outside the inner ring body and covers the outer ring body; the edge of the second ring portion extends to the device body in the direction close to the device body and is fixedly connected with the device body.

[0010] In an alternative embodiment, the edge of the second ring portion is provided with a clamping arm, the device body is provided with a clamping groove, the clamping arm is matched with the clamping groove to enable the device body and the second ring portion to be matched and clamped; the second limiting portion is arranged at the clamping arm, and the second limiting portion is matched with the first limiting portion to limit the rotation of the device body relative to the back plate; the clamping arm is matched with the clamping groove to limit the rotation of the device body relative to the second ring portion.

[0011] In an alternative embodiment, the clamping arm is composed of at least two arm bodies connected at an angle; the clamping groove is composed of at least two groove bodies arranged in communication and continuity, one of which is arranged on the side of the device body matched with the back plate, and the other of which is arranged on the side of the device body; the shape of the clamping arm is matched with the clamping groove; wherein the clamping arm is clamped in the clamping groove, and a gap is left between the clamping arm and the groove bottom.

[0012] In an alternative embodiment, the first limiting portion is a limiting groove opened through the back plate; the second limiting portion is a protrusion arranged at the clamping arm; the clamping arm is elastic; wherein the photovoltaic power electronic device has a first state in which the protrusion is clamped in the limiting groove and the device body is limited and fixed, and a second state in which the device body is rotatable, in which the clamping arm is pressed down to enter the clamping groove, and the protrusion retreats from the limiting groove.

[0013] In an alternative embodiment, the clamping arm is provided with a pressing portion on the side away from the clamping groove.

[0014] In an alternative embodiment, the back plate is provided with a first threaded hole, the first ring portion is provided with a second threaded hole, the first threaded hole corresponds to the second threaded hole, and the first ring portion and the back plate are fastened and fixed by means of a fastener.

[0015] The photovoltaic power electronic device provided by the scheme has multiple adjustable wire outlet directions and positions without affecting the normal use of the device body, so that a single photovoltaic power electronic device can be installed compatibly with photovoltaic modules of multiple different arrangement forms, without the need to configure an extension cable, the wire outlet direction and position of the device body can be directly adjusted, the adjustment process is simple and reliable, supports rapid switching between 0°, 90°, 180°, and 270°, and ensures that the wire outlet direction matches the photovoltaic module wiring.

[0016] The photovoltaic power electronic device provided by the scheme is elastically matched and clamped by the second positioning portion and the first positioning portion, ensures that the device body can be accurately positioned to a preset unit conversion angle (such as 90°) each time, avoids position deviation during rotation, and guarantees the accuracy of the adjustment of the wire outlet direction and position.

[0017] The photovoltaic power electronic device provided by the scheme is sleeved at the inner ring body and is limited between the back plate and the first ring portion, the second ring portion is a rotating component and can rotate around the inner ring body, provides a basis for the rotation of the device body to switch the wire outlet direction and position, so that the installer does not need to disassemble or replace components and can quickly adjust the wire outlet direction only by rotating.

[0018] The photovoltaic power electronic device provided by the scheme is clamped by the clamping arm of the second ring portion at the clamping groove, so that the device body cannot be rotated at will and is limited by the second ring portion, ensuring that the device body is stably locked at a preset position. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0020] Figure 1 It is a structural schematic diagram of the photovoltaic power electronic device of the present application.

[0021] Figure 2 It is an exploded schematic diagram of the photovoltaic power electronic device of the present application.

[0022] Figure 3 This is a schematic diagram showing the fit between the first ring, the second ring, and the device body of this utility model;

[0023] Figure 4 This is a schematic diagram showing the fit between the first ring and the main body of the device.

[0024] Figure 5 This is a schematic diagram showing the fit between the first ring and the second ring of this utility model;

[0025] Figure 6 This is a schematic diagram of the first ring of the present invention;

[0026] Figure 7 This is a schematic diagram of the second ring of the present invention;

[0027] Figure 8 This is a schematic diagram of the main body of the device of this utility model;

[0028] Figure 9 For the present utility model in Figure 1 A schematic diagram of the device body after rotating 90 degrees clockwise;

[0029] Figure 10 For the present utility model in Figure 1 A schematic diagram of the device body after rotating 180 degrees clockwise;

[0030] Figure 11 For the present utility model in Figure 1 The diagram shows the device body after rotating 270 degrees clockwise.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Back plate; 11. First limiting part; 12. Bolt hole; 13. Mounting hole; 14. Clamping part; 15. First screw hole;

[0033] 2. Equipment body; 21. Outgoing cable end; 22. First positioning part; 23. Mounting slot; 24. Slot; 241. First groove; 242. Second groove; 25. Shaft;

[0034] 3. First ring portion; 31. Second positioning portion; 311. Spring arm; 312. Relief groove; 313. Positioning protrusion; 32. Second screw hole; 33. Inner ring body; 34. Outer ring body;

[0035] 4. Second ring part; 41. Clamping arm; 411. First arm body; 412. Second arm body; 42. Second limiting part; 43. Pressing part; 44. Fixing part. Detailed Implementation

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0040] The embodiments of the present application will be described below in combination with Figures 1 to 11 The embodiments of the present application will be described below in combination with

[0041] According to the embodiment of the utility model, provide a kind of photovoltaic power electronic equipment, comprising: backboard 1, equipment body 2, first ring part 3 and second ring part 4;At least two first limiting parts 11 are equipped in the backboard 1;The equipment body 2 is equipped with shaft 25 in the cooperation with the backboard 1 one side;The first ring part 3 is sleeved in the shaft 25, and with the backboard 1 detachable fixed;The shaft 25 and equipment body 2 can be rotated relative to the first ring part 3;The second ring part 4 is fixedly connected with the equipment body 2, and the first ring part is assembled between the second ring part and the equipment body;Second limiting part 42 is equipped in the second ring part 4, and the second limiting part 42 is detachably cooperated with any first limiting part 11, suitable for limiting and fixing after the equipment body 2 rotates a certain angle.

[0042] As shown in Figure 2 The number of first limiting parts 11 is multiple, and the multiple first limiting parts 11 are arranged around the axis of the shaft 25 at the backboard 1;Specifically, but not limited to, four first limiting parts 11, which can be, but are not limited to, uniformly spaced around the axis of the shaft 25, so that the interval angle between adjacent first limiting parts 11 is 90 degrees;The number and interval angle of the first limiting parts 11 can be determined according to actual installation requirements, so that the first limiting parts 11 are independent of each other and meet the requirements of limiting and clamping after rotation;It can also be, but is not limited to, six first limiting parts 11;The equipment body 2 is provided with a wire outlet 21 on at least one side surface.

[0043] It should be noted that the backboard 1 is used as a mounting plate, and the backboard 1 is fixed with the photovoltaic module.

[0044] As shown in Figure 1 , Figures 6 to 8 The specific use mode of the photovoltaic power electronic equipment is as follows: Figure 1 In the photovoltaic power electronic equipment shown in Figure 6 The equipment body 2 is rotated clockwise by 90 degrees and is limited and fixed, and the wire outlet 21 is in a second wire outlet position, in which the small end is located on the right side of the large end;The second limiting part 42 is detached from the first limiting part 11 again, and the equipment body 2 is in a temporary free state, and the equipment body 2 is rotated clockwise by 90 degrees, so that the second limiting part 42 is clamped with another first limiting part 11, and the equipment body 2 is limited and fixed. Figure 6On the basis of the photovoltaic power electronic device shown, the device body is rotated clockwise by 90 degrees, the second limiting part 42 is clamped with another first limiting part 11, and the device body 2 is fixed and limited, that is Figure 7 On the basis of the photovoltaic power electronic device shown, the device body is rotated clockwise by 90 degrees, the second limiting part 42 is clamped with another first limiting part 11, and the device body 2 is fixed and limited, that is Figure 7 On the basis of the photovoltaic power electronic device shown, the device body is rotated clockwise by 90 degrees, the second limiting part 42 is clamped with another first limiting part 11, and the device body 2 is fixed and limited, that is Figure 8 On the basis of the photovoltaic power electronic device shown, the device body is rotated clockwise by 90 degrees, the second limiting part 42 is clamped with another first limiting part 11, and the device body 2 is fixed and limited, that is

[0045] The photovoltaic power electronic device provided in the embodiment has multiple adjustable wire outlet directions and positions without affecting the normal use of the device body, so that a single photovoltaic power electronic device can be installed compatible with photovoltaic modules of multiple different arrangement forms, without the need to configure an extension cable, the wire outlet direction and position of the device body can be directly adjusted, the adjustment process is simple and reliable, supports quick switching between 0°, 90°, 180° and 270°, and ensures that the wire outlet direction matches the wiring of the photovoltaic module.

[0046] Further, six first limiting parts can be provided on the back plate 1, and adjacent first limiting parts are separated by 60°, so that the device body 2 can have six states of 0 degrees, 60 degrees, 120 degrees, 180 degrees, 240 degrees and 300 degrees.

[0047] In some embodiments, the first ring part 3 is rotatably coupled with the shaft body 25; the first ring part 3 comprises an inner ring body 33 and an outer ring body 34; the inner ring body 33 is coupled with the shaft body 25, and the outer ring body 34 is arranged around the outer edge of the inner ring body 33, and the inner ring body 33 is protrusively arranged relative to the outer ring body 34; the second positioning part is arranged at the edge of the outer ring body 34.

[0048] Specifically, the first ring part 3 is coupled with the peripheral part of the shaft body 25, and the shaft body 25 is rotatable relative to the first ring part 3, the shaft body 25 is integrally arranged with the device body 2, and thus the device body 2 is rotatable.

[0049] Further, the first face of the first ring part 3 is matched with the mounting groove 23 of the device body 2; the second face of the first ring part 3, the inner ring body 33 is protrusively arranged relative to the outer ring body 34; the second ring part 4 is sleeved outside the inner ring body 33 and covers the outer ring body 34; the edge of the second ring part 4 extends to the device body 2 in the direction close to the device body 2 and is fixedly connected with the device body 2.

[0050] It should be noted that the first side of the first ring part 3 refers to the side thereof facing the device body 2, and the second side refers to the side thereof facing away from the device body 2.

[0051] Specifically, part of the edge ring body of the second ring part 4 extends towards the device body 2 until it is in contact with the device body 2, and is welded and fixed at the contact position, so that the second ring part 4 is fixed with the device body 2; the extension part can be a fixed part 44 which is in contact with the device body 2 and is welded and fixed.

[0052] Further, the outer ring body 34 can be accommodated in the groove formed by the ring body and the fixed part 44 of the second ring part 4, the inner ring body 33 passes through the ring opening of the second ring part 4, and the thickness of the inner ring body 33 is greater than the thickness of the ring body of the first ring part 3, so that the inner ring body 33 can be in contact with the back plate 1, and the inner ring body 33 and the back plate 1 are fixed by means of fasteners, specifically screws, to improve the stability of the fixation.

[0053] Specifically, the second ring part 4 can rotate around the inner ring body 33, providing a basis for the rotation of the device body 2 to switch the wire-out direction and position, so that the installer does not need to disassemble or replace parts, but only needs to rotate to quickly adjust the wire-out direction.

[0054] In combination Figure 3 , the finished photovoltaic power electronic device, the first ring part 3 is assembled in the mounting groove 23 of the device body 2, the second ring part 4 is buckled on the first ring part 3, and the second ring part 4 and the device body 2 are welded and fixed together by ultrasonic welding process; the first ring part 3, the device body 2 and the second ring part 4 form an integral whole and cannot be disassembled.

[0055] In some embodiments, the device body 2 is recessed around the shaft body 25 on the side connected with the back plate 1 to form a mounting groove 23, part of the side wall of the mounting groove 23 is recessed and formed with at least two first positioning parts 22; the first ring part 3 is assembled in the mounting groove 23, the edge of the first ring part 3 is provided with a second positioning part 31; the second positioning part 31 elastically matches and is clamped with the first positioning part 22.

[0056] Further, the second positioning part 31 includes a correspondingly arranged elastic arm 311 and a give-way groove 312, the elastic arm 311 has a positioning protrusion 313 which matches and is clamped with the first positioning part 22; the elastic arm 311 has elasticity.

[0057] It should be noted that there are multiple first positioning parts 22, and multiple first limiting parts 11 are arranged around the axis of the shaft 25 at the second ring part 4; the number of first limiting parts 11 and second limiting parts 42 is the same, and their positions correspond.

[0058] Specifically, the first positioning part 22 can be, but is not limited to, a groove, in Figure 1 In the initial state shown, the second positioning part 31 is elastically engaged with one of the first positioning parts 22, the spring arm 311 is raised, and the positioning protrusion 313 is engaged in the first positioning part 22. When the device body 2 is first rotated, the external force applied by the operator causes the inner wall of the mounting groove 23 to press the positioning protrusion 313, and the spring arm 311 is pressed into the relief groove 312. The device body 2 continues to rotate around the axis of the shaft 25 until the second positioning part 31 corresponds to the other first positioning part 22, i.e., the groove. At this time, the positioning protrusion 313 is springed into the groove under the action of the elastic restoring force of the spring arm 311 and collides with the inner wall of the groove, which generates a feedback effect to the operator, indicating that the operator has rotated the device body 2 by a unit change angle.

[0059] In the photovoltaic power electronic device provided in this embodiment, the second positioning part 31 and the first positioning part 22 are elastically engaged to ensure that the device body 2 can be accurately positioned to a preset unit change angle (such as 90°) each time it rotates, avoiding position deviation during rotation and ensuring the accuracy of the output direction and position adjustment.

[0060] Combination Figure 2 As shown, at least two second positioning parts 31 are respectively disposed at the first ring part 3, and the positions of the at least two second positioning parts 31 correspond to the positions of the first positioning parts 22. The positions can be, but are not limited to, two second positioning parts 31 spaced 180 degrees apart. During the rotation positioning process of the device body 2, at least two second positioning parts 31 cooperate with different first positioning parts 22 to improve the accuracy of rotation positioning.

[0061] In some embodiments, the second ring portion 4 is provided with a locking arm 41 at its edge, and the device body 2 is provided with a locking groove 24. The locking arm 41 cooperates with the locking groove 24 to engage the device body 2 with the second ring portion 4. The second limiting portion 42 is provided at the locking arm 41 and cooperates with the first limiting portion 11 to restrict the rotation of the device body 2 relative to the back plate 1. The locking arm 41 cooperates with the locking groove 24 to restrict the rotation of the device body 2 relative to the second ring portion 4.

[0062] Specifically, the cross-sectional shape of the clamping arm 41 can be, but is not limited to, an L shape, and the L-shaped notch is arranged towards the device body 2; the clamping arm 41 is a clamping component, the shape of the clamping groove 24 is matched with the shape of the clamping arm 41, the clamping groove 24 has a side wall and a bottom wall, the shape of the bottom wall is an L shape, and the clamping arm 41 is clamped at the clamping groove 24, so that the device body 2 cannot be rotated at will, is limited by the second ring part 4, ensures that the device body 2 is stably locked at a preset position, and when the outlet direction and position are switched, the device body 2 and the second ring part 4 rotate synchronously.

[0063] In some embodiments, the clamping arm 41 is composed of at least two arm bodies connected at an angle; the clamping groove 24 is composed of at least two groove bodies arranged in communication and continuity, one of which is arranged on the side of the device body 2 matched with the back plate 1, and the other of which is arranged on the side of the device body 2; the shape of the clamping arm 41 is matched with the shape of the clamping groove 24; wherein the clamping arm 41 is clamped in the clamping groove 24, and a gap is left between the clamping arm 41 and the groove bottom of the clamping groove.

[0064] Specifically, the clamping arm 41 is composed of a first arm body 411 and a second arm body 412 connected together, the first arm body 411 is connected with the second ring part 4, and the second arm body 412 is connected with the first arm body 411 at an angle, which can be, but is not limited to, that the second arm body 412 is connected with the first arm body 411 perpendicularly; the clamping groove 24 is composed of a first groove body 241 and a second groove body 242 arranged in communication and continuity; the first groove body 241 is arranged on the side of the device body 2 matched with the back plate 1, and the second groove body 242 is arranged on the side of the device body 2; wherein the clamping arm 41 is clamped in the clamping groove 24, the first arm body 411 is clamped in the first groove body 241, the second arm body 412 is clamped in the second groove body 242, and a gap is left between the first arm body 411 and the groove bottom of the first groove body 241, and a gap is left between the second arm body 412 and the groove bottom of the second groove body 242.

[0065] Further, the first limiting part 11 is a limiting groove arranged through the back plate 1, and the second limiting part 42 is a protrusion arranged at the clamping arm 41, which is arranged at the first arm body 411; wherein the photovoltaic power electronic device has a first state in which the protrusion is clamped in the limiting groove and the device body 2 is fixedly limited, and a second state in which the clamping arm 41 is pressed down to enter the clamping groove 24, the protrusion is withdrawn from the limiting groove, and the device body 2 is rotatable.

[0066] Specifically, the L-shaped clamping arm 41 has two vertically arranged arm bodies, namely a first arm body 411 and a second arm body 412, wherein the first arm body 411 is connected with the first ring part 4; in the first state where the clamping arm 41 is clamped in the clamping groove 24, a gap is left between the clamping arm 41 and the groove bottom of the clamping groove 24 in the natural state without external force, so that the clamping arm 41 has a certain space to press inward; when it is necessary to adjust the wire outlet direction and position of the device body 2, the clamping arm 41 is pressed downward so as to temporarily enter the clamping groove 24, thereby driving the protrusions arranged on the clamping arm 41 to retreat from the first limiting part 11, and the device body 2 is in a temporarily rotatable temporary free state, i.e., a second state.

[0067] In combination Figure 2 As shown, at least two protrusions are arranged on a single clamping arm 41.

[0068] In some embodiments, in combination Figure 2 As shown, the second arm body 412 of the clamping arm 41 is provided with a pressing part 43 on the side away from the clamping groove 24, and the pressing part 43 is arranged protruding relative to the clamping arm 41, so that when the clamping arm 41 is pressed downward, the pressing part 43 can be pressed.

[0069] In some embodiments, the back plate 1 is provided with a first screw hole 15, and the first ring part 3 is provided with a second screw hole 32, the first screw hole 15 corresponds to the second screw hole 32, and the first ring part 3 and the back plate 1 are fastened and fixed by means of a fastener, which can be but is not limited to a screw, and the screw is fastened and fixed after passing through the first screw hole 15 and the second screw hole 32.

[0070] In some embodiments, the back plate 1 is further provided with a mounting hole 13 and a bolt hole 12; the mounting hole 13 is used for mounting a clamping piece 14, and the clamping piece 14 is used for detachable connection with a photovoltaic module; the bolt hole 12 is used for fixing and mounting the back plate 1 on the photovoltaic module by using a bolt; in actual installation, at least one of the above installation modes can be selected.

[0071] Obviously, the above embodiments are only examples for clearly illustrating, and are not a limitation on the embodiments. Although the embodiments of the present application are described in combination with the drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations all fall within the scope of the present application.

Claims

1. A photovoltaic power electronics device, characterized by, The utility model relates to a photovoltaic power electronic device, including: Backboard (1), equipment body (2), first ring part (3) and second ring part (4); At least two first limiting parts (11) are arranged on the backboard (1); The equipment body (2) is provided with a shaft body (25) on one side matched with the backboard (1); The first ring part (3) is sleeved on the shaft body (25), and is detachably fixed with the backboard (1);The shaft body (25) and equipment body (2) can rotate relative to the first ring part (3); The second ring part (4) is fixedly connected with the equipment body (2), and the first ring part (3) is assembled between the second ring part (4) and the equipment body (2);Second limiting part (42) is arranged on the second ring part (4), and the second limiting part (42) is detachably matched with any first limiting part (11), suitable for limiting and fixing after rotating the equipment body (2) by a certain angle.

2. The photovoltaic power electronic device according to claim 1, wherein: The equipment body (2) is recessed to form a mounting groove (23) around the shaft body (25) on the side connected with the backboard (1), and at least two first positioning parts (22) are formed on part of the side wall of the mounting groove (23) by recessing and shaping; The first ring part (3) is assembled in the mounting groove (23), and the edge of the first ring part (3) is provided with a second positioning part (31);The second positioning part (31) is elastically matched and clamped with the first positioning part (22).

3. The photovoltaic power electronics device of claim 2, wherein, The first ring part (3) is rotatably matched and sleeved with the shaft body (25); The first ring part (3) comprises an inner ring body (33) and an outer ring body (34);The inner ring body (33) is sleeved with the shaft body (25), and the outer ring body (34) is arranged around the outer edge of the inner ring body (33), and the inner ring body (33) is protrusively arranged relative to the outer ring body (34); The second positioning part (31) is arranged on the edge of the outer ring body (34).

4. The photovoltaic power electronics device of claim 2, wherein, The second positioning part (31) comprises correspondingly arranged elastic arms (311) and accommodation grooves (312), the elastic arms (311) have positioning protrusions (313), and the positioning protrusions (313) are matched and clamped with the first positioning part (22); The elastic arms (311) are elastic.

5. The photovoltaic power electronics device of claim 3, wherein, The first surface of the first ring part (3) is matched with the mounting groove (23) of the equipment body (2);The inner ring body (33) is protrusively arranged relative to the outer ring body (34) on the second surface of the first ring part (3); The second ring part (4) is sleeved outside the inner ring body (33) and covers the outer ring body (34);The edge ring body of the second ring part (4) extends to the equipment body (2) in the direction close to the equipment body (2) and is fixedly connected with the equipment body (2).

6. The photovoltaic power electronics device according to any of claims 1-5, characterized in that, The edge of the second ring part (4) is provided with a clamping arm (41), and the equipment body (2) is provided with a clamping groove (24), and the clamping arm (41) is matched with the clamping groove (24). The second limiting part (42) is arranged at the clamping arm (41), and cooperates with the first limiting part (11) to limit rotation of the device body (2) relative to the back plate (1).

7. The photovoltaic power electronics device of claim 6, wherein, The clamping arm (41) is composed of at least two angularly connected arm bodies. The clamping groove (24) is composed of at least two communicating and continuous groove bodies, one of which is arranged on a side of the device body (2) that cooperates with the back plate (1), and the other of which is arranged on a side of the device body (2). The shape of the clamping arm (41) is adapted to the clamping groove (24). The clamping arm (41) is clamped in the clamping groove (24), and a gap is left between the clamping arm (41) and the groove bottom of the clamping groove (24).

8. The photovoltaic power electronics device of claim 6, wherein, The first limiting part (11) is a limiting groove that is arranged through the back plate (1). The second limiting part (42) is a protrusion, which is arranged at the clamping arm (41). The clamping arm (41) is elastic. In the first state, the protrusion is clamped in the limiting groove, and the device body (2) is fixed. In the second state, the clamping arm (41) is pressed down to enter the clamping groove (24), the protrusion is withdrawn from the limiting groove, and the device body (2) can rotate.

9. The photovoltaic power electronics device of claim 6, wherein, The clamping arm (41) is provided with a pressing part (43) on a side that faces away from the clamping groove (24).

10. The photovoltaic power electronics device of claim 3, wherein, The back plate (1) is provided with a first screw hole (15), and the inner ring body (33) is provided with a second screw hole (32), the first screw hole (15) corresponds to the second screw hole (32), and the first ring part (3) and the back plate (1) are fastened and fixed by means of a fastener.

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