New energy photovoltaic power station string type inverter positioning auxiliary device

Abstract

The utility model provides a new energy photovoltaic power station string type inverter positioning auxiliary device, which is characterized by comprising an upper frame structure and a bottom frame structure, and the lower end of the upper frame structure is connected with the bottom frame structure; by arranging an upper positioning frame, a clamping strip, an auxiliary bolt, a positioning bolt, a positioning knob, a contact plate, a limiting piece, a connecting rod, a threaded rod and a connecting knob, the effects that the inverter main body can be positioned during installation, and the installation position of the inverter main body can be adjusted conveniently are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of power equipment installation engineering, in particular to a positioning auxiliary device for a string inverter of a new energy photovoltaic power station. Background Art

[0002] Photovoltaic is the abbreviation of solar photovoltaic power generation system. It is a new power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. It has been well developed under the current new energy technology situation. New energy photovoltaic power station is its technological product.

[0003] An inverter is a power regulation device composed of semiconductor devices, which is mainly used to convert DC power into AC power. It is generally composed of a boost circuit and an inverter bridge circuit. The boost circuit boosts the DC voltage of the solar cell to the DC voltage required for the inverter output control; the inverter bridge circuit converts the boosted DC voltage into an AC voltage of a common frequency. For new energy photovoltaic power stations, the existence of inverters plays a vital role.

[0004] String photovoltaic inverters convert the direct current generated by photovoltaic modules directly into alternating current, which is then aggregated and boosted and connected to the grid. Therefore, the power of the inverter is relatively small. String photovoltaic inverters below 50kW are generally used in photovoltaic power stations. String inverters are based on the concept of modularization. Each photovoltaic string (1-5kw) is connected through an inverter. Several panels form a string with a power of several hundred watts to thousands of watts. The small power single-phase inverter has maximum power peak tracking at the DC end and is connected in parallel to the grid at the AC end. It has become the most popular inverter in the international market. It is small in size and light in weight. It is very convenient to carry and install. It does not require professional tools and equipment, nor does it require a special distribution room. It can simplify construction and reduce land occupation in various applications. DC line connection does not require DC combiner boxes and DC distribution cabinets.

[0005] At present, the fixing between the string inverter and the pipe pile is usually achieved by clamping the clamp A on the pipe pile, and then connecting the back of the string inverter to the clamp A to achieve fixing, which is simple and convenient to operate. However, due to the heavy weight of the string inverter, it may sink, and this fixing method using only the clamp A cannot solve the technical problem of the string inverter sinking.

[0006] In order to solve the above problems, the prior art proposes a string inverter fixing structure, as described in patent CN220135057U, the string inverter is installed on the pipe pile through a clamp A, and also includes a step-type clamp and a supporting bracket, the inner side of the step-type clamp is provided with step-type teeth, the step-type clamp is installed on the pipe pile and the step-type teeth are tightly attached to the pipe pile, the supporting bracket is fixed to the step-type clamp, the bottom of the string inverter is connected to the supporting bracket, the supporting bracket includes two cross frames, the two cross frames are fixed on the step-type clamp and form a U-shaped structure with the step-type clamp, the supporting bracket also includes a connecting plate, the bottom of the connecting plate is connected to the cross frame by self-tapping screws, and the top of the connecting plate is connected to the bottom of the string inverter by self-tapping screws;

[0007] However, in this utility model, the inverter body is supported by a supporting bracket to solve its sinking problem, but the inverter body is not positioned sufficiently during installation, making it inconvenient to install and position the inverter body, and it is also inconvenient to adjust the inverter position according to the actual installation situation after installation.

[0008] Therefore, there is an urgent need for a new energy photovoltaic power station string inverter positioning auxiliary device that can position the inverter body installation and facilitate adjustment of the inverter body installation position. Utility Model Content

[0009] In view of the above technical problems, the utility model provides a new energy photovoltaic power station string inverter positioning auxiliary device, which realizes the function of positioning the inverter body installation and facilitating the adjustment of the inverter body installation position.

[0010] The utility model is characterized in that it comprises an upper frame structure and a bottom frame structure, and the lower end of the upper frame structure is connected to the bottom frame structure.

[0011] The upper frame structure is composed of an upper positioning frame, a positioning strip, an auxiliary bolt, a positioning bolt, a positioning knob, a contact plate, and a clamp A. A clamp A is welded to the rear end of the upper positioning frame, the two ends of the lower side of the upper positioning frame are connected to the positioning strip, the two sides of the upper positioning frame are threadedly connected to the auxiliary bolts, the top of the upper positioning frame is threadedly connected to the positioning bolt, a contact plate is welded to the lower end of the positioning bolt, the contact plate is circular in shape, and a positioning knob is welded to the top of the positioning bolt.

[0012] The base frame structure is composed of a limit plate, a connecting rod, a threaded rod, a lifting base frame, a connecting knob, and a clamp. A wiring groove is opened at the lower end of the lifting base frame, a clamp is welded to the rear end of the lifting base frame, both sides of the lifting base frame are threadedly connected to the threaded rod, the lower end of the threaded rod is welded to the connecting knob, the upper end of the threaded rod is welded to the connecting rod, and a limit plate is welded to the top end of the connecting rod.

[0013] The beneficial effects of the utility model are:

[0014] The utility model adds an upper positioning frame, a positioning strip, an auxiliary bolt, a positioning bolt, a positioning knob, a contact plate, a limiting piece, a connecting rod, a threaded rod, and a connecting knob on the original basis, so as to achieve the effect of being able to position the inverter body installation and facilitating the adjustment of the inverter body installation position.

[0015] The upper positioning frame, the positioning strips and the auxiliary bolts are used to position the inverter body at the top, thereby reducing the stress on the lifting frame and increasing its stability and lifespan.

[0016] The positioning bolt, positioning knob and contact plate are used to adjust the position of the inverter body. The operator rotates the positioning knob to drive the positioning bolt to move up and down on the upper positioning frame, so that the contact plate moves up and down to change the top position of the inverter body.

[0017] The limiting piece enables the connecting rod to be limited in position and not fall out while rotating.

[0018] The connecting rod allows the operator to rotate the connecting knob without affecting its position on the locking bar due to the thread.

[0019] The threaded rod and the connecting knob enable the operator to adjust the height of the lifting chassis by adjusting the connecting knob. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view of the overall structure of the utility model new energy photovoltaic power station string inverter positioning auxiliary device;

[0021] Figure 2 It is a side view of the overall structure of the utility model new energy photovoltaic power station string inverter positioning auxiliary device.

[0022] As shown in the figure, 11. Inverter body, 12. AC combiner box, 21. Upper positioning frame, 22. Positioning strip, 23. Auxiliary bolt, 24. Positioning bolt, 25. Positioning knob, 26. Contact plate, 27. Clamp A, 31. Limiting piece, 32. Connecting rod, 33. Threaded rod, 34. Lifting base frame, 35. Wiring trough, 36. Connecting knob, 37. Clamp, 41. Pipe pile, 42. Clamp B, 43. Grounding assembly. DETAILED DESCRIPTION

[0023] Example 1

[0024] The utility model provides a new energy photovoltaic power station string inverter positioning auxiliary device, comprising an upper frame structure and a bottom frame structure.

[0025] A clamp A27 is welded to the rear end of the upper positioning frame 21, the two ends of the lower side of the upper positioning frame 21 are connected to the clamping strip 22, the two sides of the upper positioning frame 21 are threadedly connected to the auxiliary bolts 23, the top of the upper positioning frame 21 is threadedly connected to the positioning bolt 24, the lower end of the positioning bolt 24 is welded with a contact plate 26, the contact plate 26 is circular in shape, and the top of the positioning bolt 24 is welded with a positioning knob 25.

[0026] A wiring groove 35 is opened at the lower end of the lifting base frame 34, a clamp 37 is welded to the rear end of the lifting base frame 34, both sides of the lifting base frame 34 are threadedly connected to the threaded rod 33, the lower end of the threaded rod 33 is welded to the connecting knob 36, the upper end of the threaded rod 33 is welded to the connecting rod 32, and the top of the connecting rod 32 is welded to a limiting plate 31.

[0027] Example 2

[0028] When using the utility model, the operator determines the approximate position of the top of the inverter body 11 according to the position of the AC junction box 12, determines the position of the upper positioning frame 21 through the clamp A27 and fixes it, and at this time the position of the lifting frame 34 is also relatively fixed. The inverter body 11 is placed on the lifting frame 34, and the connecting wires are arranged through the wiring groove 35. Rotating the positioning knob 25 drives the positioning bolt 24 to rotate, so that the contact plate 26 moves up and down to adjust the position of the top of the inverter body 11. Rotating the connecting knob 36 causes the lifting frame 34 to move up and down under the action of the threaded rod 33 for adjustment and positioning. The limiting plate 31 realizes the limit, so that the rotation of the threaded rod 33 and the connecting rod 32 only moves the lifting frame 34, and does not affect the upper positioning frame 21.

[0029] After adjusting until the top of the inverter body 11 contacts the contact plate 26, the movement of the up and down position is completed, and the auxiliary bolt 23 is rotated to further fix the top of the inverter body 11 to reduce the pressure on the lifting chassis 34. At this time, the position of the lifting chassis 34 is determined, and the clamp 37 is tightened to complete the final positioning.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The various components mentioned in the utility model are common technologies in the existing field. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the requirements of the invention.

[0031] The scope of protection of the present utility model is defined by the attached claims and their equivalents.

Claims

1. A new energy photovoltaic power station string inverter positioning auxiliary device, characterized by: It comprises an upper frame structure and a bottom frame structure, wherein the lower end of the upper frame structure is connected to the bottom frame structure; The upper frame structure includes an upper positioning frame, a positioning strip, an auxiliary bolt, a positioning bolt, a positioning knob, a contact plate, and a clamp A. A clamp A is welded to the rear end of the upper positioning frame, the two ends of the lower side of the upper positioning frame are connected to the positioning strip, the two sides of the upper positioning frame are threadedly connected to the auxiliary bolts, the top of the upper positioning frame is threadedly connected to the positioning bolt, the lower end of the positioning bolt is welded with a contact plate, and the top of the positioning bolt is welded with a positioning knob.

2. The new energy photovoltaic power station string inverter positioning auxiliary device according to claim 1 is characterized in that: The contact plate is circular in shape.

3. The new energy photovoltaic power station string inverter positioning auxiliary device according to claim 2 is characterized in that: The base frame structure includes a limit plate, a connecting rod, a threaded rod, a lifting base frame, a connecting knob, and a clamp. A wiring groove is opened at the lower end of the lifting base frame, a clamp is welded to the rear end of the lifting base frame, both sides of the lifting base frame are threadedly connected to the threaded rod, the lower end of the threaded rod is welded to the connecting knob, the upper end of the threaded rod is welded to the connecting rod, and a limit plate is welded to the top end of the connecting rod.

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