Auxiliary installation device for fan of photovoltaic inverter

Abstract

The utility model discloses a photovoltaic inverter fan auxiliary installation device which comprises a fan support, the fan support comprises a support plate main body, a plurality of loading windows are arranged on the support plate main body, a fan comprises a fan air inlet end and a fan air outlet end, and the photovoltaic inverter fan auxiliary installation device comprises an auxiliary loading seat. The auxiliary carrying seat is provided with a supporting surface and fan auxiliary carrying grooves which are formed in the supporting surface and are in one-to-one correspondence with the loading windows, and fool-proof mechanisms which are used for avoiding the air outlet ends of the fans and hindering and interfering with the air inlet ends of the fans are arranged on the bottom walls of the fan auxiliary carrying grooves; a fan positioning mechanism is arranged on the fan auxiliary carrying groove; and a limiting guide mechanism is arranged between the supporting surface and the fan bracket. According to the utility model, the assembly requirement of the inverter fan bracket is met, and the situation of reverse installation of the fan is completely eradicated. And the fan bracket and the fan can be accurately aligned and matched, so that the assembly operation is smooth and efficient. And fool-proof and positioning are matched, the design is ingenious, the cost is low, and manufacturing and production are easy.

Description

Technical Field

[0001] This utility model relates to an auxiliary installation device for a photovoltaic inverter fan, belonging to the technical field of assembly auxiliary fixtures. Background Technology

[0002] An inverter is a power regulation device composed of semiconductor devices, mainly used to convert direct current (DC) power into alternating current (AC) power. It generally consists of a boost circuit and an inverter bridge circuit. The boost circuit raises the DC voltage from the solar cells to the DC voltage required for the inverter's output control; the inverter bridge circuit then converts the boosted DC voltage into an equivalent AC voltage of the commonly used frequency.

[0003] Photovoltaic inverters generate heat during operation and require heat dissipation. This is typically achieved using heat sink fins and cooling fans, with the cooling fans mounted on a heat sink bracket.

[0004] Currently, there is a type of heat dissipation module that uses multiple fans, which consists of several fans arranged in a row with spacing on a fan bracket. However, the fans need to be installed one by one, which is very cumbersome. In addition, since the fans have an air intake and an air exhaust side, it is easy to make mistakes in the assembly direction. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of the existing technology and to propose an auxiliary installation device for photovoltaic inverter fans, which addresses the problems of reverse assembly and low efficiency of individual assembly in traditional fan assembly.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A photovoltaic inverter fan auxiliary installation device includes a fan bracket, the fan bracket including a bracket plate body, the bracket plate body having a plurality of loading windows for mounting fans one by one, the fan including a fan inlet end and a fan outlet end, the photovoltaic inverter fan auxiliary installation device including an auxiliary carrier, the auxiliary carrier having a support surface for supporting the bracket plate body, and fan auxiliary loading slots disposed on the support surface corresponding one by one to the loading windows, the bottom wall of the fan auxiliary loading slots having a foolproof mechanism for avoiding the fan outlet end and preventing interference with the fan inlet end;

[0008] The fan auxiliary carrier slot is provided with a fan positioning mechanism for positioning the fan;

[0009] A limiting guide mechanism is provided between the support surface and the fan bracket.

[0010] Preferably, the fan outlet includes a central shaft and a plurality of structural ribs arranged around the central shaft;

[0011] The anti-mistake mechanism includes at least three anti-mistake protrusions spaced apart around the central axis, wherein any one of the anti-mistake protrusions is located between two adjacent structural ribs;

[0012] The anti-mistake protrusion is spaced relative to the fan blades at the air outlet end, and the anti-mistake protrusion does not interfere with the fan blades and / or shaft at the air inlet end.

[0013] Preferably, the fan positioning mechanism includes limiting guide walls located on both sides of the fan auxiliary carrier slot and an arc-shaped mating surface provided on the anti-foolproof protrusion for limiting and cooperating with the outer peripheral wall of the central shaft platform.

[0014] Preferably, the outer periphery of the support plate body is provided with a folded edge;

[0015] The limiting and guiding mechanism includes a plurality of bracket limiting bosses arranged at intervals on the support surface, and the fan auxiliary carrier slot is located between adjacent bracket limiting bosses.

[0016] Preferably, the fan auxiliary carrier slot has an exposed peeling groove located between the two bracket limiting bosses.

[0017] Preferably, the two ends of the support plate body have a first flap and a second flap with different structures;

[0018] The auxiliary carrier has an end face wall that is limited to cooperate with the first flip plate, and the bracket limiting protrusion on the side opposite to the end face wall is provided with a mating sink for limited cooperation with the second flip plate.

[0019] Preferably, the outer periphery of any of the loading windows is provided with a plurality of locking holes that penetrate the main body of the support plate;

[0020] The fan inlet and the fan outlet are respectively provided with mating locking holes for engaging with the locking slot.

[0021] The beneficial effects of this utility model are mainly reflected in:

[0022] 1. Meet the inverter fan bracket assembly requirements and prevent the fan from being installed backwards.

[0023] 2. It can achieve precise alignment and fit between the fan bracket and the fan, making the assembly operation smooth and efficient.

[0024] 3. The design cleverly combines error prevention and positioning, resulting in low cost and ease of manufacturing. Attached Figure Description

[0025] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the usage state of a photovoltaic inverter fan auxiliary installation device according to this utility model.

[0027] Figure 2 This is an exploded structural diagram of a photovoltaic inverter fan auxiliary installation device according to this utility model.

[0028] Figure 3 This is a schematic diagram of the auxiliary carrier in a photovoltaic inverter fan auxiliary installation device according to this utility model.

[0029] Figure 4 This is a schematic diagram of the assembly structure of the fan bracket in this utility model.

[0030] Figure 5 This is a schematic diagram of the fan inlet end in this utility model.

[0031] Figure 6 This is a schematic diagram of the fan outlet end in this utility model. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, 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, 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.

[0033] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0034] This utility model provides an auxiliary installation device for a photovoltaic inverter fan, such as... Figures 4 to 6 As shown, it includes a fan bracket 1, which includes a bracket plate body 11. The bracket plate body 11 is provided with a plurality of loading windows 12 for mounting fans 2 one by one. The fan 2 includes a fan inlet end 21 and a fan outlet end 22.

[0035] like Figures 1 to 3 As shown, the photovoltaic inverter fan auxiliary installation device includes an auxiliary carrier 3. The auxiliary carrier 3 has a support surface 31 for supporting the main body of the bracket plate and a fan auxiliary carrier slot 32 provided on the support surface 31 that corresponds one-to-one with the loading window 12. The bottom wall of the fan auxiliary carrier slot 32 is provided with a foolproof mechanism 4 for avoiding the fan outlet end and preventing interference with the fan inlet end.

[0036] The fan auxiliary carrier slot 32 is equipped with a fan positioning mechanism 5 for positioning the fan.

[0037] A limiting guide mechanism 6 is provided between the support surface 31 and the fan bracket 1.

[0038] Detailed implementation process and principle explanation:

[0039] When performing the rotation operation of fan 2 and fan bracket 1, such as Figure 2 As shown, the fans 2 are first mounted one by one in the fan auxiliary slots 32. Due to the design of the foolproof mechanism 4, it can only avoid the air outlet of the fan. When it encounters the air inlet side of the fan, it will prevent its placement, thus achieving the anti-reverse function.

[0040] When the fan 2 can be placed in the fan auxiliary carrier slot 32, the position of the fan 2 is precisely limited by the limiting guide mechanism 6, thereby ensuring its positional accuracy.

[0041] Next, as follows Figure 2 As shown, a fan bracket 1 is mounted on the support surface 31. The fan bracket 1 is precisely positioned by the limiting guide mechanism 6, thereby ensuring the precise alignment between the loading window 12 and the fan 2. At this point, the fan 2 and the fan bracket 1 can be assembled.

[0042] In one specific embodiment, the fan outlet 22 includes a central shaft 221 and a plurality of structural ribs 222 arranged around the central shaft 221.

[0043] The error prevention mechanism 4 includes at least three error prevention protrusions 40 spaced apart around the central shaft 221, with any one of the error prevention protrusions located between two adjacent structural ribs 222; the error prevention protrusions 40 are relatively spaced from the fan blades at the air outlet end, and the error prevention protrusions obstruct or interfere with the fan blades and / or shaft at the air inlet end of the fan.

[0044] Specifically, the anti-mistake protrusion 40 can avoid the central shaft platform 221 and the structural rib 222, thereby meeting the mounting avoidance requirements of the fan outlet 22 and enabling it to be mounted into the fan auxiliary mounting slot 32. The anti-mistake protrusion 40 will also come into contact with the fan blades and shaft platform structure at the fan inlet end, thus preventing it from entering the fan auxiliary mounting slot 32, thereby achieving the anti-mistake effect.

[0045] Of course, this case does not restrict the location or number of the anti-mistake protrusions 40. As long as the structure meets the anti-mistake cooperation requirements, it is within the protection scope of this case.

[0046] In one specific embodiment, the fan positioning mechanism 5 includes limiting guide walls 51 located on both sides of the fan auxiliary carrier slot and an arc-shaped mating surface 52 provided on the anti-foolproof protrusion for limiting and cooperating with the outer peripheral wall of the central shaft platform.

[0047] Specifically, the limiting guide wall 51 provides precise guidance for the fan in a linear direction, meeting its pre-installed positional requirements. The side wall of the auxiliary carrier is used for secondary positioning to ensure the pre-installed positional requirements of the fan 2. At this time, its central shaft can enter the central part surrounded by the anti-foolproof protrusion 40, and a stable and precise positioning is formed between the arc-shaped mating surface 52 and the outer periphery of the central shaft.

[0048] This embodiment achieves pre-alignment guidance and precise positioning of the mounted components through the clever structure of the error-proof mechanism 4 and the fan positioning mechanism 5, thus ensuring assembly accuracy and a clever structure.

[0049] In one specific embodiment, the outer periphery of the bracket plate body 11 is provided with a folded edge 110, and the limiting guide mechanism 6 includes a plurality of bracket limiting bosses 61 arranged at intervals on the support surface, and the fan auxiliary carrier slot is located between adjacent bracket limiting bosses.

[0050] Specifically, several bracket limiting bosses 61 form a supporting protrusion with several fan auxiliary slots, and the folded edge 110 is sleeved on the supporting protrusion to achieve precise mounting and positioning.

[0051] In one specific embodiment, the fan auxiliary carrier slot 32 has an exposed stripping groove 320 located between two bracket limiting bosses.

[0052] This makes it easy to unload and detach the assembly of fan 2 and fan bracket 1.

[0053] In one specific embodiment, the two ends of the support plate body 11 have a first flap 111 and a second flap 112 with different structures.

[0054] The auxiliary carrier 3 has an end face wall 33 that is limited to the first flip plate, and a bracket limiting boss 61 on the side opposite to the end face wall is provided with a mating sink 62 for limited to the second flip plate.

[0055] This satisfies the mistake-proof design requirement of preventing incorrect mounting direction.

[0056] In one specific embodiment, the outer periphery of any loading window is provided with a plurality of locking holes that penetrate the main body of the support plate; the fan inlet end and the fan outlet end are respectively provided with mating locking holes for cooperating with the locking holes.

[0057] This structure is a traditional locking structure, which has the advantages of simple molding, convenient assembly and low cost. However, this structure is prone to reverse installation. And the cost of designing a foolproof lock structure is too high. This solution meets the assembly requirements of preventing reverse installation and foolproof installation without changing the traditional locking structure.

[0058] As can be seen from the above description, this utility model meets the assembly requirements of inverter fan brackets and prevents fans from being installed backwards. It enables precise alignment and fit between the fan bracket and the fan, making the assembly process smooth and efficient. The clever combination of error-proofing and positioning design is ingenious, cost-effective, and easy to manufacture.

[0059] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.

[0060] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1.A photovoltaic inverter fan auxiliary installation device, comprising a fan bracket, the fan bracket comprising a bracket plate body, the bracket plate body being provided with a plurality of loading windows for one-to-one loading of fans, the fan comprising a fan air inlet end and a fan air outlet end, characterized in that: the photovoltaic inverter fan auxiliary installation device comprises an auxiliary carrier, the auxiliary carrier being provided with a supporting surface for supporting the bracket plate body, a fan auxiliary loading groove corresponding to the loading window being arranged on the supporting surface, a foolproof mechanism being arranged on the bottom wall of the fan auxiliary loading groove for avoiding the fan air outlet end and interfering with the fan air inlet end; a fan positioning mechanism is arranged on the fan auxiliary loading groove for positioning the fan; a limiting guide mechanism is arranged between the supporting surface and the fan bracket. 2.The photovoltaic inverter fan auxiliary installation device according to claim 1, characterized in that: the fan air outlet end comprises a central shaft table and a plurality of structural ribs arranged around the central shaft table; the foolproof mechanism comprises at least three spaced apart foolproof protrusions arranged around the central shaft table, any of the foolproof protrusions being located between two adjacent structural ribs; the foolproof protrusions are spaced apart from the fan blades of the fan air outlet end, and the foolproof protrusions interfere with the fan blades and / or the shaft table of the fan air inlet end. 3.The photovoltaic inverter fan auxiliary installation device according to claim 2, characterized in that: the fan positioning mechanism comprises limiting guide walls arranged on both sides of the fan auxiliary loading groove, and an arc-shaped matching surface arranged on the foolproof protrusion for limiting and matching with the outer wall of the central shaft table. 4.The photovoltaic inverter fan auxiliary installation device according to claim 1, characterized in that: the outer periphery of the bracket plate body is provided with a folded edge; the limiting guide mechanism comprises a plurality of bracket limiting protrusions arranged on the supporting surface, the fan auxiliary loading groove being located between adjacent bracket limiting protrusions. 5.The photovoltaic inverter fan auxiliary installation device according to claim 4, characterized in that: the fan auxiliary loading groove is provided with an exposed stripping groove between two bracket limiting protrusions. 6.The photovoltaic inverter fan auxiliary installation device according to claim 4, characterized in that: the two ends of the bracket plate body are provided with a first folded plate and a second folded plate with different structures; the auxiliary carrier is provided with an end surface wall limiting and matching with the first folded plate, and the bracket limiting protrusion on the side away from the end surface wall is provided with a matching sunken table for limiting and matching with the second folded plate. 7.The photovoltaic inverter fan auxiliary installation device according to any one of claims 1-6, characterized in that: the outer periphery of any of the loading windows is provided with a plurality of locking hole grooves penetrating through the bracket plate body; the fan air inlet end and the fan air outlet end are respectively provided with matching locking holes for matching with the locking hole grooves. ​ ​ ​ ​ ​ ​ ​

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