Inverter support and photovoltaic module

Abstract

The utility model provides an inverter support and a photovoltaic assembly. The inverter support comprises a bottom frame, stand columns connected to the bottom frame, a ceiling arranged at the upper ends of the stand columns, anti-seismic sleeves, anti-seismic cross beams and anti-seismic bolts, the stand columns are sleeved with the anti-seismic sleeves, and the anti-seismic cross beams are fixedly arranged on the surfaces of the anti-seismic sleeves through the anti-seismic bolts. A plurality of anti-seismic sliding holes are formed in the height direction of the stand column and vertically communicate with one another, and the anti-seismic bolt is arranged in one of the anti-seismic sliding holes in a matched mode; the anti-seismic cross beam is provided with a connecting hole used for installing an inverter. The anti-seismic cross beam is connected with the inverter, the anti-seismic cross beam is connected with the anti-seismic sleeve, the stand column is provided with the anti-seismic sliding holes, and when vertical vibration exists, the anti-seismic sleeve slides relative to the stand column so as to provide energy dissipation capacity under the action of an earthquake, achieve the damping effect, weaken the vibration influence of the earthquake and reduce damage to the support.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation technology, and in particular to an inverter bracket and a photovoltaic module. Background Technology

[0002] Conventional rooftop distributed photovoltaic (PV) projects typically use low-power inverters, which are small in size and lightweight (usually <50kg) and can be directly fixed to corrugated steel sheets or concrete roofs using clamps. However, with the development of PV technology, high-power inverters (such as 200kW and above) are becoming increasingly common, significantly increasing their size and weight (up to 200-500kg). Using traditional clamp fixing methods then presents the following problems:

[0003] (i) Insufficient structural load-bearing capacity: The clamps have low strength and cannot support the weight of high-power inverters and dynamic loads such as wind pressure and snow pressure;

[0004] (ii) Poor installation stability: The clamps are prone to uneven stress, which can lead to deformation or detachment, affecting the inverter's heat dissipation and electrical safety.

[0005] Existing patents, such as the one disclosed in publication number CN219718172U, describe an inverter bracket suitable for angle-sag type color steel tile roofs, which can solve the aforementioned problems of existing clamps. However, in the event of an earthquake, this bracket cannot effectively eliminate or reduce vibrations, which will lead to damage to the inverter. Utility Model Content

[0006] The purpose of this invention is to provide an inverter bracket and photovoltaic module that can reduce the impact of earthquake vibrations and reduce damage to the bracket and inverter.

[0007] The technical solution of this utility model is: an inverter bracket, including a base frame, a column connected to the base frame, a canopy located at the upper end of the column, a seismic sleeve, a seismic beam, and seismic bolts. The seismic sleeve is fitted onto the outside of the column, and the seismic beam is fixed to the surface of the seismic sleeve by the seismic bolts. The column has multiple seismic sliding holes in its height direction, and the multiple seismic sliding holes are vertically connected. The seismic bolts are adapted to fit into one of the seismic sliding holes. The seismic beam has connection holes for installing the inverter.

[0008] Preferably, the plurality of the earthquake-resistant sliding holes are arranged adjacent to each other, and a channel is provided between every two earthquake-resistant sliding holes, the channel connecting two adjacent earthquake-resistant sliding holes.

[0009] Preferably, the width of the channel is smaller than the diameter of the bolt of the anti-seismic bolt.

[0010] Preferably, the anti-seismic sliding hole is a vertically extending waist-shaped hole.

[0011] Preferably, the base frame includes longitudinal support beams, transverse support beams, and diagonal braces. The longitudinal support beams and transverse support beams enclose a rectangular frame. The uprights are connected to the longitudinal support beams, and the diagonal braces are connected between the uprights and the longitudinal support beams.

[0012] Preferably, the inverter bracket further includes an L-shaped base disposed around the bottom perimeter of the base frame, and a connector is provided between the base frame and the L-shaped base.

[0013] Preferably, the connector is an anchor bolt or a foundation bolt.

[0014] Preferably, at least two seismic-resistant beams are provided in the height direction of the column, and vertical supports are connected between the at least two seismic-resistant beams.

[0015] Preferably, the canopy includes a top plate, purlins, and cantilever beams, the purlins and cantilever beams forming a rectangular frame, the top plate being disposed on the upper surface of the rectangular frame, and the columns being connected to the lower end of the cantilever beams.

[0016] This utility model also provides a photovoltaic module, which is installed on a concrete foundation or roof. The photovoltaic module includes an inverter and the inverter bracket mentioned above. The base frame is installed on the concrete foundation or roof. The inverter is installed on the seismic beam through connecting bolts provided in the connecting holes.

[0017] Compared with related technologies, the beneficial effects of this utility model are as follows:

[0018] I. This utility model connects the anti-seismic beam to the inverter and the anti-seismic sleeve. Multiple anti-seismic sliding holes are provided on the column. When there is vertical vibration, the anti-seismic sleeve slides relative to the column to provide energy dissipation capacity under earthquake action, play a shock reduction role, weaken the impact of earthquake vibration, reduce the damage to the support and reduce the damage to the inverter.

[0019] 2. The inverter bracket has a closed rectangular frame and a base frame formed by diagonal braces, which provides stable support and enables the inverter bracket to be installed securely.

[0020] Third, the anti-seismic beam of the inverter bracket is connected to a vertical support, which provides a more stable connection for the inverter, improves the fixing method by 300%, and can support inverters weighing over 500kg. Attached Figure Description

[0021] Figure 1 A front view of the inverter bracket provided by this utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the structure of the columns in the diagram;

[0023] Figure 3 A front view structural diagram of the photovoltaic module provided by this utility model;

[0024] Figure 4 for Figure 3 Side view.

[0025] In the attached diagram: 1. Base frame; 11. Longitudinal support beam; 12. Transverse support beam; 13. Diagonal brace; 2. Column; 21. Seismic sliding hole; 211. Channel; 3. Seismic sleeve; 4. Seismic crossbeam; 41. Connection hole; 5. Seismic bolt; 6. Vertical support; 7. Roof; 71. Top plate; 72. Ribbon; 73. Cantilever beam; 8. L-shaped base; 9. Connector; 10. Foundation; 20. Inverter. Detailed Implementation

[0026] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0027] like Figure 1 As shown, the inverter bracket provided in this embodiment includes a base frame 1, a column 2, an anti-vibration sleeve 3, an anti-vibration beam 4, an anti-vibration bolt 5, a vertical support 6, a roof 7, an L-shaped base 8, and a connector 9.

[0028] like Figure 1 , Figure 3 As shown, the base frame 1 includes longitudinal support beams 11, transverse support beams 12, and diagonal braces 13. The longitudinal support beams 11 and transverse support beams 12 form a rectangular frame. Each longitudinal support beam 11 is connected to a column 2. The diagonal braces 13 connect the column 2 and the longitudinal support beams 11.

[0029] like Figure 2 As shown, the column 2 has multiple seismic-resistant sliding holes 21 along its height direction. Each seismic-resistant sliding hole 21 is a vertically extending, waist-shaped hole. The multiple seismic-resistant sliding holes 21 are vertically connected. The multiple seismic-resistant sliding holes 21 are arranged adjacent to each other, and a channel 211 connects every two adjacent seismic-resistant sliding holes 21. The width of the channel 211 is smaller than the diameter of the seismic-resistant bolt 5. The seismic-resistant bolt 5 is a common bolt.

[0030] like Figure 1 , Figure 2As shown, the seismic sleeve 3 is fitted onto the outside of the column 2, and the seismic beam 4 is fixed to the surface of the seismic sleeve 3 by seismic bolts 5. The seismic bolts 5 are adapted to a certain seismic sliding hole 21 (the initial installation position is a certain seismic sliding hole 21 at a suitable height).

[0031] In this embodiment, two seismic-resistant beams 4 are provided along the height direction of the column 2, and a vertical support 6 connects the two seismic-resistant beams 4. The seismic-resistant beams 4 are provided with connection holes 41 for installing the inverter.

[0032] The canopy 7 includes a top plate 71, purlins 72, and cantilever beams 73. The purlins 72 and cantilever beams 73 enclose a rectangular frame, and the top plate 71 is located on the upper surface of the rectangular frame. The column 2 is connected to the lower end of the cantilever beams 73. The canopy 7 serves to provide rain protection, and the top plate 71 is made of a material that is rainproof but allows light to pass through.

[0033] The L-shaped base 8 is located around the bottom perimeter of the base frame 1, and a connector 9 is provided between the base frame 1 and the L-shaped base 8. If the inverter bracket is installed on a corrugated steel roof, the connector 9 is an anchor bolt. If the inverter bracket is installed on a concrete roof foundation 10, the connector 9 is an anchor bolt (e.g.,...). Figure 3 (As shown).

[0034] The inverter bracket is designed with three wind pressure levels (less than or equal to 0.35 kN / m). 2 ; in the range of 0.35–0.5 kN / m 2 Between; greater than 0.50 kN / m 2 Snow pressure ≥ 0.40 kN / m 2 It meets the Class B ground roughness requirements. This is specifically for coastal areas and areas with high wind pressure (>0.50 kN / m²). 2 A personalized design solution should be adopted.

[0035] The inverter bracket can use detachable connecting parts (such as bolts and clips) to facilitate structural adjustments (such as the number or spacing of the anti-seismic beams 4) according to the inverter size.

[0036] like Figure 1 , Figure 3 As shown, this utility model also provides a photovoltaic module, which is installed on the foundation 10 or the roof. The photovoltaic module includes an inverter 20 and the aforementioned inverter bracket. The base frame 1 is installed on the concrete foundation 10 or the roof together with the L-shaped base 8 via connector 9. The inverter 20 is installed on the seismic beam 4 via connecting bolts provided in the connecting hole 41.

[0037] In the event of an earthquake, the inverter 20, anti-seismic sleeve 3, anti-seismic beam 4, and anti-seismic bolt 5 slide down along the anti-seismic sliding hole 21, generating energy dissipation capacity and achieving a shock absorption effect, reducing or preventing damage to the inverter 20 and inverter bracket. After the earthquake, the inverter 20 is then installed at a suitable height.

[0038] The inverter bracket adopts a closed rectangular frame and a combination structure with diagonal braces, which improves the wind pressure resistance of the inverter bracket and can be installed on roofs or ground surfaces, covering diverse scenarios such as industrial and commercial roofs and agricultural photovoltaic integration. The inverter bracket is made of hot-dip galvanized steel or aluminum alloy, and the surface is coated with graphene epoxy zinc-rich primer, with a weather resistance of more than 25 years. A heat dissipation channel is reserved; for example, after the inverter 20 is installed, the gap between the seismic beam 4 and the column 2 forms a heat dissipation channel, which can prevent the electrical equipment from overheating and reduce the failure rate of the inverter due to heat by 30%.

[0039] A load test was performed on the inverter bracket: simulated wind pressure 0.45 kN / m. 2 Snow pressure 0.40 kN / m 2 Under these conditions, the maximum deformation of the inverter bracket is less than 2mm, which meets safety standards.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An inverter bracket comprising a base frame (1), a stand (2) connected to the base frame (1), and a roof (7) provided at the upper end of the stand (2), characterized in that, It also includes a seismic sleeve (3), a seismic beam (4), and a seismic bolt (5). The seismic sleeve (3) is fitted onto the outside of the column (2). The seismic beam (4) is fixed to the surface of the seismic sleeve (3) by the seismic bolt (5). The column (2) has multiple seismic sliding holes (21) in the height direction. The multiple seismic sliding holes (21) are vertically connected. The seismic bolt (5) is adapted to one of the seismic sliding holes (21). The seismic beam (4) has a connection hole (41) for installing an inverter.

2. The inverter bracket of claim 1, wherein, Multiple earthquake-resistant sliding holes (21) are arranged close together, and a channel (211) is provided between every two earthquake-resistant sliding holes (21), the channel (211) connecting two adjacent earthquake-resistant sliding holes (21).

3. The inverter bracket of claim 2, wherein, The width of the channel (211) is smaller than the diameter of the bolt of the anti-seismic bolt (5).

4. The inverter bracket of claim 1, wherein, The anti-seismic sliding hole (21) is a waist-shaped hole that extends vertically.

5. The inverter support of claim 1, wherein, The base frame (1) includes a longitudinal support beam (11), a transverse support beam (12) and a diagonal brace (13). The longitudinal support beam (11) and the transverse support beam (12) enclose a rectangular frame. The column (2) is connected to the longitudinal support beam (11), and the diagonal brace (13) is connected between the column (2) and the longitudinal support beam (11).

6. The inverter support of claim 1, wherein, It also includes an L-shaped base (8) disposed around the bottom periphery of the base frame (1), and a connector (9) is provided between the base frame (1) and the L-shaped base (8).

7. The inverter support of claim 6, wherein, The connector (9) is an anchor bolt or a foundation bolt.

8. The inverter support of claim 1, wherein, At least two of the seismic-resistant beams (4) are provided in the height direction of the column (2), and vertical supports (6) are connected between the at least two seismic-resistant beams (4).

9. The inverter support of claim 1, wherein, The canopy (7) includes a top plate (71), purlins (72) and cantilever beams (73). The purlins (72) and cantilever beams (73) enclose a rectangular frame. The top plate (71) is located on the upper surface of the rectangular frame. The column (2) is connected to the lower end of the cantilever beams (73).

10. A photovoltaic module arranged on a concrete foundation (10) or on a roof, the photovoltaic module comprising an inverter (20), characterized in that It also includes an inverter bracket as described in any one of claims 1-9, wherein the base frame (1) is installed on the concrete foundation (10) or roof, and the inverter (20) is installed on the seismic beam (4) by means of connecting bolts provided in the connecting holes (41).

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