High load photovoltaic project tracking support assembly fixing block device

Abstract

The utility model relates to a high load photovoltaic project tracking support assembly fixed briquetting device, including photovoltaic assembly, fixed briquetting, purlin, fixed briquetting is hollow pipe body structure, including left side wall, upper side wall, right side wall, lower side wall that integrally connect in proper order to first port and second port are opposite and set up, left side wall and right side wall are from first port starts to the second port direction and are spaced apart and are provided with the upper clamping groove for photovoltaic assembly insertion and the lower clamping groove for purlin insertion, upper side wall is provided with the upper elastic buckle extending to the upper clamping groove and is bent down, and the free end middle part of upper elastic buckle is recessed with upper square gap, lower side wall is provided with the lower elastic buckle extending to the lower clamping groove and is bent up, and the free end middle part of lower elastic buckle is recessed with lower square gap. This fixed briquetting device can realize fast, simple and convenient toolless installation, and has very high anti-vibration and anti-loosening capacity, ensuring long-term connection reliability under high load, multidirectional stress environment.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic tracking bracket technology, specifically a fixing block device for tracking bracket components in high-load photovoltaic projects. Background Technology

[0002] With the rapid development of the photovoltaic industry, the application scenarios of photovoltaic power plants are becoming increasingly complex, placing higher demands on the reliability and economy of photovoltaic support systems. Especially in single-axis tracking support projects operating in harsh environments such as high wind pressure and heavy snow, photovoltaic modules not only need to withstand enormous static and dynamic loads, but also need to cope with multi-directional alternating stresses generated by tracking rotation and wind-induced vibrations. Under these high-load conditions, the reliability of the connection and fixation between the modules and the support is crucial. (See attached...) Figure 1-2 As shown, the industry currently commonly uses bolt connections to fix the photovoltaic module 1 to the bracket purlin 3. This traditional method usually has the following inherent drawbacks: 1. Limited installation and operation space leads to low construction efficiency: such as Figure 2 As shown, bolt 6 is typically installed through pre-drilled holes below photovoltaic module 1. Because the space below photovoltaic module 1 is very limited after installation, it is extremely inconvenient for installers to operate, significantly reducing installation efficiency and increasing labor costs. Furthermore, disassembly is equally difficult during later maintenance or module replacement.

[0003] 2. Prone to loosening under dynamic loads, posing a safety hazard: Bolted connections are prone to loosening due to stress relaxation or mechanical vibration under long-term continuous vibration. For tracking brackets with variable load directions and in strong winds accompanied by severe vibration, traditional bolt fastening methods are difficult to provide durable and stable clamping force, posing a risk of photovoltaic module 1 loosening and threatening the safe operation of the entire power station. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a fixing block device for tracking bracket components in high-load photovoltaic projects, which enables quick and easy tool-free installation, fundamentally overcoming the problem of insufficient operating space. At the same time, the fixing block device has extremely high vibration resistance and anti-loosening ability, ensuring long-term connection reliability under high load and multi-directional stress environments. In addition, the number of components is simplified through structural innovation, thereby achieving the goal of reducing overall costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-load photovoltaic project tracking bracket component fixing block device, comprising a photovoltaic component, a fixing block, and purlins; the fixing block is a hollow tube structure, comprising a left side wall, an upper side wall, a right side wall, and a lower side wall integrally connected in sequence, and a first port and a second port arranged opposite to each other; the left side wall and the right side wall are provided with an upper slot for inserting the photovoltaic component and a lower slot for inserting the purlin, spaced vertically from the first port toward the second port; the upper side wall is bent downwards to provide an upper snap-fit ​​extending to the upper slot, and the free end of the upper snap-fit ​​has an upper square notch recessed in the middle; the lower side wall is bent upwards to provide a lower snap-fit ​​extending to the lower slot, and the free end of the lower snap-fit ​​has a lower square notch recessed in the middle.

[0006] Furthermore, the upper slot includes a first left slot recessed on the left side wall and a first right slot recessed on the right side wall; the lower slot includes a second left slot recessed on the left side wall and a second right slot recessed on the right side wall.

[0007] Furthermore, the first left card slot and the first right card slot are arranged opposite to each other and parallel to each other, and the second left card slot and the second right card slot are arranged opposite to each other and parallel to each other.

[0008] Furthermore, the photovoltaic module includes a lower wing that inserts into the upper slot; the purlin includes an extended wing that inserts into the lower slot.

[0009] Furthermore, the height of the upper slot is slightly greater than the thickness of the lower wing, and the height of the lower slot is slightly greater than the thickness of the extended wing plate.

[0010] This utility model relates to a high-load photovoltaic project tracking bracket component fixing block device. Through the precise cooperation between the upper spring buckle of the fixing block and the photovoltaic module, and the precise cooperation between the lower spring buckle and the purlin, a complete friction self-locking mechanical system is constructed, which has the following beneficial effects: 1. Improved installation efficiency: Completely eliminates the need for fasteners such as bolts and nuts and installation tools, achieving the ultimate installation experience of "align and insert, press and lock". The operation is simple and there is no problem of insufficient operating space, which greatly reduces installation time and labor costs.

[0011] 2. Excellent connection reliability and stability: The unique self-locking mechanism gives the connection points extremely high resistance to loosening under high load, multi-directional force and vibration environments. Unless the spring-loaded structure of the fixing block is damaged, the photovoltaic modules and purlins will not fall out, which significantly enhances the safety and service life of the photovoltaic support system under harsh working conditions.

[0012] 3. Structural optimization and cost reduction: The number of parts has been simplified, reducing material costs; at the same time, the structural design takes into account tolerance, anti-sway and stress distribution, ensuring the reliability and durability of the product. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a structure in which photovoltaic modules and bracket purlins are fixedly connected by bolts in the existing technology.

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0015] Figure 3 This is a schematic diagram of the structure of the present invention when the fixing block is not pressed into the purlin of the photovoltaic module.

[0016] Figure 4 This is a schematic diagram of the structure of the fixed pressure block pressed into the purlin of the photovoltaic module in this utility model.

[0017] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0018] Figure 6 This is a schematic diagram of the structure of the fixed pressure block in this utility model; Reference numerals: 1. Photovoltaic module; 11. Lower wing; 2. Fixing block; 21. Left side wall; 22. Upper side wall; 23. Right side wall; 24. Lower side wall; 25. First port; 26. Second port; 27. Upper slot; 271. First left slot; 272. First right slot; 28. Lower slot; 281. Second left slot; 282. Second right slot; 3. Purlin; 31. Extended wing plate; 41. Upper spring clip; 42. Upper notch; 51. Lower spring clip; 52. Lower notch; 6. Bolt. Detailed Implementation

[0019] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Please see the appendix Figure 3-6 As shown, this utility model provides a fixing block device for a high-load photovoltaic project tracking bracket assembly, including a photovoltaic module 1, a fixing block 2, and purlins 3. The fixing block 2 is a hollow tube structure, which forms a high-rigidity overall frame. This structure can effectively resist and disperse complex loads (such as wind pressure, snow load, and vibration) from the photovoltaic module 1 and purlins 3, preventing the fixing block 2 itself from twisting or plastically deforming due to force, and ensuring the long-term stability of the connection.

[0021] As attached Figure 3-4As shown, the fixing block 2 includes a left side wall 21, an upper side wall 22, a right side wall 23, and a lower side wall 24 that are integrally connected in sequence, as well as a first port 25 and a second port 26 that are arranged opposite to each other. The integral connection is preferably made by extrusion molding or stamping and bending process, which avoids the use of bolts or welding to connect the walls, eliminates the risk of loosening or fatigue failure of the connection points, and improves the reliability and durability of the product.

[0022] As attached Figure 3 As shown, the left side wall 21 and right side wall 23 are provided with upper slots 27 for inserting photovoltaic modules 1 and lower slots 28 for inserting purlins 3, spaced vertically from the first port 25 towards the second port 26. These slots on the left side wall 21 and right side wall 23 together form a precise guide channel, ensuring that the lower wing 11 of the photovoltaic module 1 and the extended wing plate 31 of the purlin 3 can be accurately guided to the predetermined position, achieving rapid positioning.

[0023] As attached Figure 4 As shown, the upper sidewall 22 is bent downwards to form an upper spring buckle 41 extending to the upper slot 27, and the lower sidewall 24 is bent upwards to form a lower spring buckle 51 extending to the lower slot 28. This technical feature is the core of this utility model for achieving frictional self-locking and is also the key to achieving boltless fastening. The spring buckle formed by bending itself is elastic. When the photovoltaic module 1 is inserted into the upper slot 27, it will squeeze the upper spring buckle 41 to make it elastically deform upwards. The rebound force generated by the upper spring buckle 41 continuously presses the photovoltaic module 1 downwards, generating huge frictional force. Similarly, the lower spring buckle 51 is squeezed downwards by the purlin 3, and its rebound force continuously presses the purlin 3 upwards. This continuous elastic pressure allows the connection point to not only remain tight in a high-frequency vibration environment, but also, when subjected to a force in the direction that would cause the connection to loosen, the frictional force will cause the spring buckle to tighten further, forming a "self-locking" effect, fundamentally solving the problem of bolts easily loosening under vibration.

[0024] The free end of the upper snap fastener 41 is recessed with an upper notch 42, and the free end of the lower snap fastener 51 is recessed with a lower notch 52. The upper notch 42 and the lower notch 52 are used for unlocking. When unlocking is required, a tool is inserted into the upper notch 42 and the lower notch 52 to press the upper snap fastener 41 and the lower snap fastener 51, so that the upper snap fastener 41 is separated from the photovoltaic module 1 and the lower snap fastener 51 is separated from the purlin 3, which facilitates unlocking.

[0025] Preferably, the upper notch 42 is an upper square notch located in the middle of the free end of the upper snap 41; the lower notch 52 is a lower square notch located in the middle of the free end of the lower snap 51.

[0026] The upper slot 27 includes a first left slot 271 recessed on the left side wall 21 and a first right slot 272 recessed on the right side wall 23; the lower slot 28 includes a second left slot 281 recessed on the left side wall 21 and a second right slot 282 recessed on the right side wall 23. By symmetrically arranging slots on the left side wall 21 and the right side wall 23, the insertion points of the photovoltaic module 1 and the purlin 3 are evenly distributed, improving the load-bearing capacity and stability of the overall structure. In addition, the symmetrical slot design facilitates quick alignment of the photovoltaic module 1 and the purlin 3 during installation, reducing adjustment time and further improving installation efficiency.

[0027] The first left slot 271 and the first right slot 272 are arranged opposite to each other and parallel to each other, as are the second left slot 281 and the second right slot 282. The opposite and parallel slots ensure that the lower wing 11 of the photovoltaic module 1 and the extended wing plate 31 of the purlin 3 can be smoothly inserted, reducing installation resistance and avoiding jamming or misalignment. The parallel arrangement makes the force direction consistent, preventing the module or purlin 3 from loosening due to asymmetrical installation, and enhancing the vibration resistance under high dynamic loads.

[0028] The photovoltaic module 1 includes a lower wing 11 that inserts into the upper slot 27; the purlin 3 includes an extended wing plate 31 that inserts into the lower slot 28. Through the tight fit between the lower wing 11 and the upper slot 27, and between the extended wing plate 31 and the lower slot 28, a precise mechanical connection between the photovoltaic module 1 and the purlin 3 is achieved. Combined with the self-locking action of the spring clip, this effectively prevents the photovoltaic module 1 from detaching from the purlin 3 under vibration. After the lower wing 11 and the extended wing plate 31 are inserted into the slots, they form an integral structure with the fixing block 2, dispersing the load stress and improving the rigidity and deformation resistance of the connection point.

[0029] The height of the upper slot 27 is slightly greater than the thickness of the lower wing 11, and the height of the lower slot 28 is slightly greater than the thickness of the extended wing 31. The slightly increased slot height provides the necessary installation clearance, allowing for slight misalignment between the photovoltaic module 1 and the purlin 3 wing during insertion, reducing manufacturing and installation accuracy requirements, while facilitating quick insertion.

[0030] The installation process of the high-load photovoltaic project tracking bracket component fixing block device of this utility model is as follows: Using a tool, the photovoltaic module 1 is suspended above the purlin 3, with the lower wing 11 of the photovoltaic module 1 aligned with the extended wing plate 31 of the purlin 3. There is a gap between the photovoltaic module 1 and the purlin 3, the distance of which is approximately equal to the distance between the upper slot 27 and the lower slot 28. The fixing block 2 is pressed into the lower wing 11 and the extended wing plate 31; at this time, the fixing block 2 can only move towards the purlin 3 and cannot move back. Due to the pressure of the upper and lower spring clips 51 pressing on the component or purlin 3, friction is generated. This friction causes the spring clips to rotate in the opposite direction. This tendency further increases the tendency of the spring clips to press against the photovoltaic module 1 or purlin 3, forming a friction self-locking structure, which is a stable structure.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing block device for tracking bracket components in a high-load photovoltaic project, characterized in that: The device includes photovoltaic modules, a fixing block, and purlins. The fixing block is a hollow tube structure, comprising a left side wall, an upper side wall, a right side wall, and a lower side wall integrally connected in sequence, as well as a first port and a second port arranged opposite to each other. The left side wall and the right side wall are provided with an upper slot for inserting photovoltaic modules and a lower slot for inserting purlins, spaced vertically from the first port toward the second port. The upper side wall is bent downwards and has an upper snap-fit ​​extending to the upper slot, with an upper square notch recessed in the middle of the free end of the upper snap-fit. The lower side wall is bent upwards and has a lower snap-fit ​​extending to the lower slot, with a lower square notch recessed in the middle of the free end of the lower snap-fit.

2. The high-load photovoltaic project tracking bracket component fixing block device according to claim 1, characterized in that: The upper slot includes a first left slot recessed on the left side wall and a first right slot recessed on the right side wall; the lower slot includes a second left slot recessed on the left side wall and a second right slot recessed on the right side wall.

3. The high-load photovoltaic project tracking bracket component fixing block device according to claim 2, characterized in that: The first left card slot and the first right card slot are arranged opposite to each other and parallel to each other, and the second left card slot and the second right card slot are arranged opposite to each other and parallel to each other.

4. The high-load photovoltaic project tracking bracket component fixing block device according to claim 3, characterized in that: The photovoltaic module includes a lower wing that inserts into the upper slot; the purlin includes an extended wing that inserts into the lower slot.

5. The high-load photovoltaic project tracking bracket component fixing block device according to claim 4, characterized in that: The height of the upper slot is slightly greater than the thickness of the lower wing, and the height of the lower slot is slightly greater than the thickness of the extended wing plate.

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