A power distribution cabinet based on photovoltaic integration

Abstract

The present invention relates to the technical field of power distribution cabinets, and provides a power distribution cabinet based on photovoltaic integration, comprising: a power distribution chamber, an electrical rack is arranged inside, and the electrical rack is used to install electrical components; an energy absorption plate is arranged on the bottom surface of the power distribution chamber, and the projection of the electrical rack in the vertical direction is located within the range of the top surface of the energy absorption plate, the electrical rack is fixedly connected to the energy absorption plate, a first buffer component is arranged in the power distribution chamber, and the first buffer component is connected to the energy absorption plate to absorb energy and buffer the energy of the energy absorption plate along the width direction of the power distribution chamber; a buffer rod is fixed relative to the energy absorption plate, a connecting piece is arranged on the buffer rod, and the connecting piece is detachably connected to the energy absorption plate, and the two ends of the buffer rod are respectively in contact with the opposite sides of the inner wall of the power distribution chamber through a second buffer component, and the second buffer component is used to absorb energy and buffer the buffer rod along the length direction of the power distribution chamber. It can enhance the effect of energy absorption and buffering of electrical components, effectively protect electrical components, and improve the flexibility of use of the power distribution cabinet.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets, and in particular to a power distribution cabinet based on photovoltaic integration. Background Art

[0002] Due to the different scales of photovoltaic power generation, some are large and some are small, and the voltage with a rated voltage of more than 1kV is usually called "high voltage electricity", and the voltage with a rated voltage of less than 1kV is called "low voltage electricity". According to different voltage levels, different levels of power grids are used to meet the technical requirements of transmission and distribution capacity, power quality, etc., which can be divided into small, medium or large photovoltaic power stations. In the process of integrated control of photovoltaic power grid connection, distribution cabinets are needed.

[0003] In the prior art such as the integrated photovoltaic power generation distribution grid cabinet of CN116316163A, for medium and large photovoltaic power stations, the distribution cabinet generates vibrations during operation due to the high-frequency electromagnetic field. In order to reduce the damage caused by vibration to electrical components, an energy absorption structure is set in the grid cavity, and an energy absorption spring and a cross bar are used to respectively resist the side and back plate of the inner wall of the grid cavity to achieve energy absorption buffering of the distribution cabinet. However, since the energy absorption structure needs to give way to the electrical components, it is only installed on the rear part of the grid cavity. As the vibration gradually moves away from the cross bar cut end, the buffering effect generated by the response is also weakened. That is, when the vibration is generated from the front side of the grid cavity, the vibration transmission process first passes through the electrical frame and then is reduced by the energy absorption structure, resulting in poor buffering and energy absorption effect of the prior art for most of the front area of ​​the grid cavity. The energy absorption and buffering means adopted by the prior art to protect the electrical components are not ideal.

[0004] In addition, the buffering energy absorption of the prior art is supported by a three-axis mechanical interlocking, and a bracket is extended through the back plate to support three sets of bevel gears and a set of pulleys, and the force of the second lead screw is driven by the double-headed motor, resulting in a complex structure that is inconvenient to adjust. The energy absorption buffer area carried is fixed, and the adaptation effect for distribution cabinets of different sizes is poor. Moreover, the power grid will continue to increase during use, and the number of electrical components will also continue to increase with time. Due to the structural limitations of the energy absorption buffer mechanism, the prior art can only meet the demand for additional electrical components by increasing the number of distribution cabinets, and cannot flexibly adjust the use space of the distribution cabinet. Therefore, this technical solution aims to propose a distribution cabinet based on photovoltaic integration to solve at least one of the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a distribution cabinet based on photovoltaic integration to solve the problems existing in the above-mentioned prior art, which can enhance the energy absorption and buffering effect of electrical components, effectively protect electrical components, and improve the flexibility of use of the distribution cabinet.

[0006] To achieve the above object, the present invention provides the following solution: The present invention provides a photovoltaic integrated power distribution cabinet, comprising:

[0007] A power distribution cavity, in which an electrical rack is arranged, and the electrical rack is used to install electrical components;

[0008] An energy absorbing plate is arranged on the bottom surface of the power distribution cavity, and the projection of the electrical frame in the vertical direction is located within the range of the top surface of the energy absorbing plate. The electrical frame is fixedly connected to the energy absorbing plate. A first buffer component is arranged in the power distribution cavity, and the first buffer component is connected to the energy absorbing plate to absorb and buffer the energy of the energy absorbing plate along the width direction of the power distribution cavity.

[0009] A buffer rod is provided with a connecting piece, and the connecting piece is detachably connected to the energy absorption plate. The two ends of the buffer rod are respectively in contact with the opposite sides of the inner wall of the distribution cavity through a second buffer component, and the second buffer component is used to absorb and buffer the energy of the buffer rod along the length direction of the distribution cavity.

[0010] Preferably, the first buffer component comprises:

[0011] A base, fixedly connected to the bottom surface of the power distribution cavity, a connecting seat is arranged above the base, the connecting seat is fixedly connected to the energy absorption plate, a circular groove is provided on the bottom surface of the connecting seat, the top surface of the base is hemispherical hinge-shaped, and a hemispherical hinge groove is provided on the inner wall of the top end of the circular groove to slide with the base, so that the base 5 can move in the circular groove;

[0012] An elastic member, an annular gap is provided between the base and the inner side wall of the circular groove, and the elastic member is arranged in the annular gap so that the base and the circular groove are elastically opposed to each other.

[0013] Preferably, the elastic member includes a spring sheet circumferentially arranged in the annular gap, the spring sheet is a wavy structure, a notch is provided on one side of the spring sheet, a support sheet is extended at one end of the notch in a direction perpendicular to the tangent of the inner wall of the circular groove, and the support sheet is fixedly connected to the inner wall of the circular groove.

[0014] Preferably, the second buffer component comprises:

[0015] A pair of support frames are respectively fixed on both sides of the inner wall of the bottom end of the distribution cavity, a buffer beam is provided on the top of the support frame, and the buffer beam can slide along the length direction of the distribution cavity, the buffer rod is arranged on the buffer beam and fixed relatively to the buffer beam, a plurality of energy absorbing springs are arranged on the sides close to each other of the buffer beam and the support frame, and the plurality of energy absorbing springs are evenly distributed along the axial direction of the buffer beam, and the two ends of the energy absorbing spring are respectively fixed to the buffer beam and the support frame.

[0016] Preferably, the top surface of the support frame has an arc-shaped protrusion extending vertically upward, the buffer beam is a circular structure and has an open end on the bottom surface, a groove is provided at the center of the inner wall at the top end of the buffer beam along the axial direction, the top surface of the support frame is in sliding contact with the groove, and the energy absorbing spring is provided between the opposite side of the inner wall of the buffer beam and the support frame.

[0017] Preferably, the second buffer component further includes:

[0018] The damper is coaxially fixed to the two ends of the buffer rod, and a piston rod is slidably connected to the side of the damper close to the distribution chamber, an adjusting tube is transferred to the piston rod, a thread is provided on the inner ring side of the adjusting tube, an abutment rod is slidably connected to the piston rod, the abutment rod is threadedly connected to the adjusting tube, and one end of the abutment rod extends out of the piston rod and abuts against the inner wall of the adjacent distribution chamber.

[0019] Preferably, it also includes:

[0020] A positioning seat is fixed on the top surface of the buffer beam, an embedding groove is provided in the positioning seat, the buffer rod is embedded in the embedding groove, a cushion layer is fixed in the embedding groove, and the cushion layer abuts against the buffer rod;

[0021] A fixing seat is fixed on the top surface of the buffer beam and is arranged on one side of the positioning seat along the axial direction of the buffer rod. A plurality of binding holes are opened on the side wall of the fixing seat. Steel wire ropes are passed through the binding holes. The steel wire ropes are used to fix the buffer rod and the fixing seat.

[0022] Preferably, a plurality of threaded holes are formed on the top surface of the buffer beam along the axial direction, and threaded rods are fixedly connected to the bottom surfaces of the positioning seat and the fixing seat, and the threaded rods are threadedly connected to any one of the threaded holes.

[0023] Preferably, at least one energy absorbing plate is fixed on the buffer rod along the axial direction, and the number of the connecting members is the same as that of the energy absorbing plates and they correspond one to one.

[0024] Preferably, the connecting member comprises:

[0025] A connecting pipe is sleeved on the buffer rod, the buffer rod is provided with threads, and the connecting pipe is threadedly connected to the buffer rod;

[0026] A pair of locking nuts, arranged opposite to each other at two ends of the connecting pipe, the locking nuts being threadedly connected to the buffer rod;

[0027] Limiting rings are integrally formed on both sides of the connecting pipe, the diameter of the connecting pipe is smaller than the diameter of the limiting rings, and the two limiting rings are matched in the middle of the connecting pipe to define a limiting interval;

[0028] The mounting clip is arranged in the limiting interval and is an I-shaped structure. The recesses on both sides of the mounting clip are clamped with the connecting pipe, and the top surface of the mounting clip is fixedly connected with the energy absorbing plate.

[0029] The present invention discloses the following technical effects:

[0030] The present invention utilizes an energy absorption plate to provide an energy absorption area that exceeds the projection area of ​​the electrical rack, and fixes the electrical rack to the energy absorption plate. The energy absorption plate is buffered and energy absorbed by the cooperation of a first buffer component and a second buffer component. The first buffer component is along the width direction of the distribution cavity, and the second buffer component is along the length direction of the distribution cavity. The two cooperate to achieve energy absorption and vibration reduction of the electrical rack. Compared with the prior art, on the basis of increasing the coverage area of ​​energy absorption and vibration reduction, the vibration reduction effect on electrical components is also enhanced, and the buffer rod is detachably connected to the energy absorption plate through a connector. In actual use, an electrical rack can be added according to the needs of photovoltaic power grid parallel connection, and by adding an energy absorption plate and connecting and fixing it with the buffer rod, the added electrical rack can be directly subjected to energy absorption and buffering, thereby achieving improved flexibility in the use of the distribution cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0032] Figure 1 A diagram showing the positional relationship between the power distribution cavity and the electrical rack in the present invention;

[0033] Figure 2 A diagram showing the connection relationship between the buffer rod and the energy absorbing plate in the present invention;

[0034] Figure 3 A diagram showing the connection relationship between the fixing seat and the buffer beam in the present invention;

[0035] Figure 4 A diagram showing the connection relationship between the damper and the abutment rod in the present invention;

[0036] Figure 5 A diagram showing the connection relationship between the mounting clip and the buffer rod in the present invention;

[0037] Figure 6 It is a schematic diagram of the structure of the connecting seat and the hemispherical joint protrusion in the present invention;

[0038] Among them, 1. distribution chamber; 2. electrical frame; 3. energy absorption plate; 4. buffer rod; 5. base; 6. connecting seat; 7. pillar; 8. hemispherical hinge protrusion; 9. spring sheet; 10. support sheet; 11. support frame; 12. buffer beam; 13. energy absorption spring; 14. arc protrusion; 15. damper; 16. piston rod; 17. adjusting tube; 18. abutment rod; 19. top plate; 20. positioning seat; 21. cushion layer; 22. fixing seat; 23. wire rope; 24. threaded rod; 25. connecting pipe; 26. locking nut; 27. limit ring; 28. mounting clamp. DETAILED DESCRIPTION

[0039] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] Reference Figure 1-Figure 6 The present invention provides a photovoltaic integrated power distribution cabinet, comprising:

[0042] The power distribution cavity 1 is provided with an electrical rack 2 inside, and the electrical rack 2 is used to install electrical components;

[0043] The energy absorbing plate 3 is arranged on the bottom surface of the power distribution cavity 1, and the projection of the electrical frame 2 in the vertical direction is located within the range of the top surface of the energy absorbing plate 3. The electrical frame 2 is fixedly connected to the energy absorbing plate 3. A first buffer component is arranged in the power distribution cavity 1, and the first buffer component is connected to the energy absorbing plate 3 to absorb and buffer the energy of the energy absorbing plate 3 along the width direction of the power distribution cavity 1.

[0044] The buffer rod 4 is provided with a connecting piece, which is detachably connected to the energy absorbing plate 3. The two ends of the buffer rod 4 are respectively in contact with the opposite sides of the inner wall of the distribution chamber 1 through the second buffer component. The second buffer component is used to absorb energy and buffer the buffer rod 4 along the length direction of the distribution chamber 1.

[0045] The present invention utilizes the energy absorption plate 3 to provide an energy absorption area that exceeds the projection area of ​​the electrical rack 2, and fixes the electrical rack 2 on the energy absorption plate 3. The energy absorption plate 3 is buffered and energy absorbed by the cooperation of the first buffer component and the second buffer component. The first buffer component is along the width direction of the distribution cavity 1, and the second buffer component is along the length direction of the distribution cavity 1. The two cooperate to realize energy absorption and vibration reduction of the electrical rack 2. Compared with the prior art, on the basis of increasing the coverage area of ​​energy absorption and vibration reduction, the vibration reduction effect on electrical components is also enhanced, and the buffer rod 4 is detachably connected to the energy absorption plate 3 through a connector. In actual use, an electrical rack 2 can be added according to the needs of photovoltaic power grid parallel connection, and the energy absorption plate 3 is added and fixed to the buffer rod 4 to directly absorb and buffer the added electrical rack 2, thereby improving the flexibility of the distribution cabinet.

[0046] It is understandable that the top of the electrical rack 2 does not contact the inner wall of the distribution cavity 1 to ensure that the vibration of the distribution cabinet can be transmitted to the electrical rack 2 after the first buffer and the second buffer cooperate to absorb energy and reduce vibration.

[0047] Further, the first buffer component includes:

[0048] The base 5 is fixedly connected to the bottom surface of the distribution cavity 1. A connecting seat 6 is arranged above the base 5. The connecting seat 6 is fixedly connected to the energy absorbing plate 3. A circular groove is provided on the bottom surface of the connecting seat 6. The top surface of the base 5 is in a hemispherical hinge shape. The inner wall of the top end of the circular groove is provided with a hemispherical hinge groove that slides with the base 5, so that the base 5 can move in the circular groove.

[0049] An elastic member is provided with an annular gap between the base 5 and the inner wall of the circular groove, and the elastic member is provided in the annular gap so that the base 5 and the circular groove are elastically offset from each other.

[0050] The connecting seat 6 is fixedly connected to the energy absorbing plate 3 through the support 7, and the hemispherical hinge protrusion 8 formed on the top surface of the base 5 is utilized to slide in contact with the hemispherical hinge groove on the bottom surface of the circular groove to enhance the connection stability between the connecting seat 6 and the base 5. The elastic member arranged in the annular gap is utilized to elastically support the two. When the vibration is transmitted from the distribution cabinet to the electrical components, the limited sliding between the base 5 and the connecting seat 6 and the elastic supporting force provided by the elastic member constitute damping and vibration reduction of the connecting seat 6, thereby effectively realizing the energy absorption effect on the energy absorbing plate 3 and reducing the vibration transmission to the electrical frame 2 to damage the electrical components.

[0051] Furthermore, the elastic member includes a spring sheet 9 circumferentially arranged in the annular gap. The spring sheet 9 is a wavy structure. A notch is provided on one side of the spring sheet 9. A support sheet 10 extends from one end of the notch in a direction perpendicular to the tangent of the inner wall of the circular groove. The support sheet 10 is fixedly connected to the inner wall of the circular groove.

[0052] In this technical solution, the spring sheet 9 is arranged into an annular structure, and a notch is provided on one side of the spring sheet 9. When the base 5 and the connecting seat 6 slide relative to each other due to the influence of vibration, the spring sheet 9 is deformed and bent due to the mutual squeezing force between the base 5 and the connecting seat 6. The deformation effect on the spring sheet 9 is released by providing the notch. Compared with the annular spring sheet structure, this patent can effectively increase the service life of the spring sheet 9 and enhance the vibration reduction effect on the electrical components.

[0053] Furthermore, the annular spring sheet 9 can provide circumferential vibration-damping support for the base 5 relative to the connecting seat 6 , thereby effectively reducing vibrations acting on the electrical frame 2 in all directions.

[0054] At the same time, the use of spring sheets 9 to act as elastic support between the base 5 and the connecting seat 6 can increase the elastic modulus, so that when personnel plug, unplug and install electrical components on the electrical rack 2, the electrical rack 2 can provide a support with greater rigidity, thereby stabilizing the structure of the electrical rack 2 and facilitating personnel to perform construction operations.

[0055] Furthermore, the second buffer component includes:

[0056] A pair of support frames 11 are respectively fixedly connected to both sides of the inner wall at the bottom end of the distribution chamber 1. A buffer beam 12 is provided at the top of the support frame 11, and the buffer beam 12 can slide along the length direction of the distribution chamber 1. The buffer rod 4 is arranged on the buffer beam 12 and fixed relatively to the buffer beam 12. A plurality of energy absorbing springs 13 are arranged on the sides close to each other of the buffer beam 12 and the support frame 11. The plurality of energy absorbing springs 13 are evenly spaced along the axial direction of the buffer beam 12, and the two ends of the energy absorbing spring 13 are respectively fixedly connected to the buffer beam 12 and the support frame 11.

[0057] The buffer beam 12 is utilized to slide along the length direction, and the support frame 11 is in sliding contact with the buffer beam 12. A plurality of energy absorbing springs 13 are provided between the support frame 11 and the buffer beam 12. When the support frame 11 fixed to the distribution cabinet is subjected to vibration, the vibration is absorbed by the energy absorbing spring 13 and then transmitted to the buffer beam 12. Since the buffer rod 4 and the buffer beam 12 are relatively fixed, the buffer rod 4 is energy-absorbed and vibration-reduced. On the basis of the first buffer assembly reducing the vibration of the energy absorbing plate 3, the influence of the vibration on the energy absorbing plate 3 is further reduced.

[0058] Furthermore, an arc-shaped protrusion 14 extends vertically upward from the top surface of the support frame 11, the buffer beam 12 is a circular structure and has an open end on the bottom surface, a groove is provided at the center of the inner wall at the top end of the buffer beam 12 along the axial direction, the top surface of the support frame 11 is in sliding contact with the groove, and energy-absorbing springs 13 are provided between the opposite side of the inner wall of the buffer beam 12 and the support frame 11.

[0059] Similarly, by the sliding contact between the arc-shaped protrusion 14 on the top surface of the support frame 11 and the buffer beam 12, the support frame 11 forms a limiting support for the buffer beam 12 during the sliding process, so that the buffer beam 12 always has a guiding force along the middle direction of the arc-shaped protrusion 14, combined with the elastic support of the buffer beam 12 and the support frame 11 by the energy-absorbing spring 13, thereby realizing the vibration reduction and buffering effect on the buffer rod 4.

[0060] The buffer beam 12 of the round-beam structure can make full use of the energy absorption zone formed between the two sides and the support frame 11. A number of energy absorption springs 13 are arranged on both sides to enhance the support strength of the electrical frame 2 by increasing the elastic modulus, so that the electrical frame 2 can stably support external forces when the staff disassembles and assembles electrical components.

[0061] Furthermore, the second buffer component also includes:

[0062] The damper 15 is coaxially fixed to the two ends of the buffer rod 4. A piston rod 16 is slidably connected to the side of the damper 15 close to the distribution chamber 1. An adjusting tube 17 is transferred to the piston rod 16. The inner circle side of the adjusting tube 17 is provided with a thread. An abutment rod 18 is slidably connected to the piston rod 16. The abutment rod 18 is threadedly connected to the adjusting tube 17. One end of the abutment rod 18 extends out of the piston rod 16 and abuts against the inner wall of the adjacent distribution chamber 1.

[0063] By fixing the damper 15 on the end of the buffer rod 4 and transferring the adjusting tube 17 to the piston rod 16 of the damper 15, utilizing the abutment rod 18 that is slidably connected in the piston rod 16 and threadedly connected to the abutment rod 18 through the adjusting tube 17, the extending length of the abutment rod 18 relative to the piston rod 16 can be adjusted by rotating the adjusting tube 17. Under the damping support of the damper 15, the abutment rod 18 can contact the inner wall surface of the distribution chamber 1. When the distribution cabinet vibrates, the abutment rod 18 can immediately transmit the vibration to the damper 15, and absorb energy through the damper 15.

[0064] In addition, a top plate 19 is fixedly connected to the contact end of the abutment rod 18 and the distribution chamber 1, and the top plate 19 is fitted with the inner wall surface of the distribution chamber 1, so that the buffer rod 4 is perpendicular to the inner wall surface of the distribution chamber 1, and the buffer rod 4 is relatively fixed to the buffer beam 12. Through the support of the abutment rod 18, the present patent does not need to add limit slide rails and other structures to the buffer beam 12, and the buffer beam 12 can also ensure sliding along the length direction of the distribution chamber 1. Similarly, under the support of the damping medium in the damper 15, a damping limit support is generated between the piston rod 16 and the buffer rod 4. Combined with the elastic support of the energy absorption spring 13 to the buffer beam 12 and the support frame 11, the energy absorption and vibration reduction of the buffer beam 12 can be met.

[0065] Furthermore, it also includes:

[0066] The positioning seat 20 is fixed on the top surface of the buffer beam 12. The positioning seat 20 is provided with an embedding groove. The buffer rod 4 is embedded in the embedding groove. A cushion layer 21 is fixed in the embedding groove. The cushion layer 21 abuts against the buffer rod 4.

[0067] The fixing seat 22 is fixed on the top surface of the buffer beam 12 and is arranged on one side of the positioning seat 20 along the axial direction of the buffer rod 4. A plurality of binding holes are opened on the side wall of the fixing seat 22. A steel wire rope 23 is passed through the binding holes. The steel wire rope 23 is used to fix the buffer rod 4 and the fixing seat 22.

[0068] By coaxially fixing the positioning seat 20 and the fixing seat 22 on the buffer beam 12, both of which limit and fix the buffer rod 4, the buffer rod 4 can be fixed to the buffer beam 12 along the length direction of the distribution chamber 1, and the buffer rod 4 is clamped in the positioning seat 20 by using the cushion layer 21 fixed in the positioning seat 20, and the buffer rod 4 is tied with a steel wire rope 23 with a plurality of binding holes, which can make the buffer rod 4 and the buffer beam 12 tightly fixed, and the buffer rod 4 is convenient to disassemble.

[0069] Reference Figure 3 , Figure 4 It can be understood that the damper 15 is coaxially fixed to the buffer rod 4. In actual use, the positioning seat 20 and the fixing seat 22 are fixed to the buffer rod 4 or the fixed end of the damper 15, which can achieve the effect of fixing the buffer rod 4.

[0070] Furthermore, a plurality of threaded holes are formed on the top surface of the buffer beam 12 along the axial direction, and threaded rods 24 are fixedly connected to the bottom surfaces of the positioning seat 20 and the fixing seat 22 , and the threaded rods 24 are threadedly connected to any of the threaded holes.

[0071] The positioning seat 20 and the fixing seat 22 are detachably connected to the buffer beam 12 through the threaded rod 24. According to actual needs, when installing energy absorption plates 3 of different sizes, the fixed positions of the positioning seat 20 and the fixing seat 22 can be adjusted to adjust the distance between two adjacent buffer rods 4 or the buffer rod 4 and the inner wall of the distribution cavity 1, so that the buffer rod 4 can adapt to the size of the energy absorption plate 3 to provide a connection area, thereby further improving the flexibility of use of the distribution cabinet.

[0072] Furthermore, at least one energy absorbing plate 3 is fixed on the buffer rod 4 along the axial direction, and the number of the connecting members is the same as that of the energy absorbing plates 3 and they correspond one to one.

[0073] Correspondingly, the energy absorbing plate 3 is fixedly connected to the buffer rod 4 by a connecting piece, and a connecting area is provided on the buffer rod 4. When an additional energy absorbing plate 3 is needed to meet the grid paralleling requirement, the corresponding additional energy absorbing plate 3 and the buffer rod 4 can be fixed by the connecting piece.

[0074] Furthermore, the connecting piece includes:

[0075] The connecting pipe 25 is sleeved on the buffer rod 4. The buffer rod 4 is provided with threads. The connecting pipe 25 is threadedly connected to the buffer rod 4.

[0076] A pair of locking nuts 26 are disposed opposite to each other at two ends of the connecting pipe 25, and the locking nuts 26 are threadedly connected to the buffer rod 4;

[0077] The limiting rings 27 are integrally formed on both sides of the connecting tube 25. The diameter of the connecting tube 25 is smaller than the diameter of the limiting rings 27. The two limiting rings 27 are matched in the middle of the connecting tube 25 to define a limiting interval.

[0078] The mounting clip 28 is disposed in the limiting interval and is an I-shaped structure. The recesses on both sides of the mounting clip 28 are engaged with the connecting pipe 25 , and the top surface of the mounting clip 28 is fixedly connected to the energy absorbing plate 3 .

[0079] In the present technical solution, two buffer rods 4 are relatively arranged, and the mounting clip 28 fixed to the bottom end of the energy absorbing plate 3 is clamped with the connecting pipe 25, so that the energy absorbing plate 3 is fixed to the buffer rod 4 through the cooperation of four mounting clips 28 at the four corners of the energy absorbing plate 3. In addition, the connecting pipe 25 is fixed by the locking nut 26, and the mounting clip 28 is limited and fixed by the limiting ring 27. When vibration is transmitted, it can effectively avoid the reduction of energy absorption and vibration reduction effect due to the misalignment between the buffer rod 4 and the energy absorbing plate 3.

[0080] The working principle of the photovoltaic integrated power distribution cabinet of the present invention is as follows:

[0081] By fixing the energy absorbing plate 3 at the bottom end of the electrical frame 2, fixing the connecting seat 6 at the bottom end of the energy absorbing plate 3, corresponding to the base 5 fixed at the bottom end of the distribution chamber 1, the circular groove of the connecting seat 6 is sleeved on the base 5, and the hemispherical hinge protrusion 8 is slidably matched with the hemispherical hinge groove, and the spring sheet 9 fixed in the circular groove is sleeved on the base 5, and then according to the spacing of the mounting clips 28 on both sides of the bottom end of the energy absorbing plate 3, the two buffer rods 4 are fixed to the buffer beam 12, and the buffer beam 12 is mounted on the support frame 11, and the buffer beam 12 is elastically supported by the energy absorbing spring 13, and the positioning seat 20 and the fixing seat 22 are twisted to make the positioning seat 20 and the fixing seat 22 parallel to the length direction of the distribution chamber 1, And it is fixed with the buffer beam 12, and after the buffer rod 4 is embedded in the positioning seat 20, the fixing seat 22 and the buffer rod 4 are fixedly connected by tying the steel wire rope 23. After the buffer rod 4 is fixed, the connecting tube 25 and the locking nut 26 are twisted to make the connecting tube 25 correspond to the depression of the mounting clip 28 and be fixed, and the energy absorbing plate 3 and the buffer rod 4 are fixed, and then the adjusting tube 17 is rotated to extend the abutment rod 18 until the abutment rod 18 abuts against the inner wall surface of the distribution chamber 1, so that the piston rod 16 has an elastic pressure effect away from the damper 15, thereby completing the connection and fixation of the energy absorbing plate 3 and the distribution chamber 1, and finally the electrical components can be installed on the electrical rack 2.

[0082] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0083] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A photovoltaic integrated power distribution cabinet, characterized in that: include: A power distribution cavity (1) is provided with an electrical rack (2) inside, wherein the electrical rack (2) is used to install electrical components; An energy absorbing plate (3) is arranged on the bottom surface of the power distribution cavity (1), and the projection of the electrical frame (2) in the vertical direction is located within the range of the top surface of the energy absorbing plate (3); the electrical frame (2) is fixedly connected to the energy absorbing plate (3); a first buffer component is arranged in the power distribution cavity (1), and the first buffer component is connected to the energy absorbing plate (3); A buffer rod (4), wherein a connecting piece is provided on the buffer rod (4), wherein the connecting piece is detachably connected to the energy absorption plate (3), and two ends of the buffer rod (4) respectively contact opposite sides of the inner wall surface of the power distribution cavity (1) through a second buffer assembly; The first buffer component comprises: A base (5) is fixedly connected to the bottom surface of the power distribution cavity (1), a connecting seat (6) is arranged above the base (5), the connecting seat (6) is fixedly connected to the energy absorption plate (3), a circular groove is provided on the bottom surface of the connecting seat (6), the top surface of the base (5) is in a hemispherical hinge shape, and a hemispherical hinge groove is provided on the inner wall of the top end of the circular groove to slide with the base (5), so that the base (5) can move in the circular groove; An elastic member, an annular gap is provided between the base (5) and the inner side wall of the circular groove, and the elastic member is arranged in the annular gap so that the base (5) and the circular groove elastically abut against each other; The second buffer component comprises: A pair of support frames (11) are respectively fixedly connected to both sides of the inner wall of the bottom end of the power distribution cavity (1); a buffer beam (12) is provided at the top end of the support frame (11), and the buffer beam (12) can slide along the length direction of the power distribution cavity (1); the buffer rod (4) is arranged on the buffer beam (12) and is relatively fixed to the buffer beam (12); a plurality of energy absorbing springs (13) are provided on the sides of the buffer beam (12) and the support frame (11) close to each other; the plurality of energy absorbing springs (13) are distributed at equal intervals along the axial direction of the buffer beam (12); and the two ends of the energy absorbing spring (13) are respectively fixedly connected to the buffer beam (12) and the support frame (11).

2. The photovoltaic integrated power distribution cabinet according to claim 1, characterized in that: The elastic member comprises a spring sheet (9) circumferentially arranged in the annular gap, the spring sheet (9) being a wave-shaped structure, a notch being provided on one side of the spring sheet (9), a support sheet (10) extending from one end of the notch in a direction perpendicular to a tangent line of the inner wall surface of the circular groove, the support sheet (10) being fixedly connected to the inner wall surface of the circular groove.

3. The photovoltaic integrated power distribution cabinet according to claim 1, characterized in that: The top surface of the support frame (11) is provided with an arc-shaped protrusion (14) extending vertically upwards, the buffer beam (12) is a circular structure and is provided with an open end on the bottom surface, a slot is provided at the center of the inner wall at the top end of the buffer beam (12) along the axial direction, the top surface of the support frame (11) is in sliding contact with the slot, and the energy absorbing spring (13) is provided between the opposite side of the inner wall surface of the buffer beam (12) and the support frame (11).

4. The photovoltaic integrated power distribution cabinet according to claim 1, characterized in that: The second buffer component also includes: A damper (15) is coaxially fixed to the two ends of the buffer rod (4); a piston rod (16) is slidably connected to the side of the damper (15) close to the power distribution chamber (1); an adjusting tube (17) is transferred to the piston rod (16); a thread is provided on the inner ring side of the adjusting tube (17); an abutting rod (18) is slidably connected to the piston rod (16); the abutting rod (18) is threadedly connected to the adjusting tube (17); one end of the abutting rod (18) extends out of the piston rod (16) and abuts against the inner wall surface of the adjacent power distribution chamber (1).

5. The photovoltaic integrated power distribution cabinet according to claim 1, characterized in that: Also includes: A positioning seat (20) is fixed on the top surface of the buffer beam (12), an embedding groove is provided in the positioning seat (20), the buffer rod (4) is embedded in the embedding groove, a cushion layer (21) is fixed in the embedding groove, and the cushion layer (21) abuts against the buffer rod (4); A fixing seat (22) is fixed to the top surface of the buffer beam (12) and is arranged on one side of the positioning seat (20) along the axial direction of the buffer rod (4). A plurality of binding holes are provided on the side wall surface of the fixing seat (22). Steel wire ropes (23) are passed through the binding holes. The steel wire ropes (23) are used to fix the buffer rod (4) and the fixing seat (22).

6. The photovoltaic integrated power distribution cabinet according to claim 5, characterized in that: The top surface of the buffer beam (12) is provided with a plurality of threaded holes along the axial direction, and the bottom surfaces of the positioning seat (20) and the fixing seat (22) are fixedly connected with threaded rods (24), and the threaded rods (24) are threadedly connected to any one of the threaded holes.

7. The photovoltaic integrated power distribution cabinet according to claim 1, characterized in that: At least one energy absorbing plate (3) is fixed on the buffer rod (4) along the axial direction, and the number of the connecting members is the same as that of the energy absorbing plates (3) and they correspond one to one.

8. The photovoltaic integrated power distribution cabinet according to claim 1, characterized in that: The connecting piece comprises: A connecting pipe (25) is sleeved on the buffer rod (4); the buffer rod (4) is provided with a thread, and the connecting pipe (25) is threadedly connected to the buffer rod (4); a pair of locking nuts (26) disposed opposite to each other at two ends of the connecting pipe (25), the locking nuts (26) being threadedly connected to the buffer rod (4); Limiting rings (27) are integrally formed on both sides of the connecting tube (25); the diameter of the connecting tube (25) is smaller than the diameter of the limiting rings (27); the two limiting rings (27) are matched with the middle of the connecting tube (25) to define a limiting interval; The mounting clip (28) is arranged in the limiting interval and has an I-shaped structure. The recesses on both sides of the mounting clip (28) are clamped with the connecting pipe (25), and the top surface of the mounting clip (28) is fixedly connected with the energy absorbing plate (3).

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