External fan bracket mechanism of inverter

Abstract

The utility model discloses an external fan bracket mechanism of an inverter. A back plate of the inverter is provided with a groove cavity located at the bottom of a radiating fin part; comprising a bracket body detachably arranged on a groove cavity, the bracket body comprises a horizontal support and a protective baffle connected with the horizontal support, and a cavity for containing a fan is formed among the groove cavity, the horizontal support and the protective baffle; any free end of the horizontal support is provided with a bent carrier plate with a through hole channel, an obtuse included angle is formed between the bent carrier plate and the horizontal support, and a cooling fan is detachably arranged on the end face of the side, facing the inverter, of the bent carrier plate. According to the utility model, the groove cavity is matched with the obliquely arranged fan, so that the outlet air can cover more fins, the uniform heat dissipation requirement can be met only by a single fan, and the cost is effectively controlled. The bracket body is simple and ingenious in design, and the requirements for inclined carrying and locking reliability of the cooling fan are met. The external fan bracket mechanism is convenient and efficient to assemble and disassemble and easy to maintain and repair.

Description

Technical Field

[0001] This utility model relates to an external fan bracket mechanism for an inverter, belonging to the technical field of external fan mounting. Background Technology

[0002] An inverter is a power regulation device composed of semiconductor devices, mainly used to convert DC power into AC power. It generally consists of a boost circuit and an inverter bridge circuit.

[0003] The boost circuit boosts the DC voltage of the solar cell to the DC voltage required for inverter output control; the inverter bridge circuit then converts the boosted DC voltage into an equivalent AC voltage of the commonly used frequency.

[0004] Inverters generate heat during operation, necessitating heat dissipation designs. To improve the heat dissipation efficiency of photovoltaic inverter heat sinks, the width of the heat sink perpendicular to the airflow direction is increased. Inverter heat sources are often designed with a horizontally distributed arrangement to reduce cascading heat effects and mutual interference between heat sources. This requires heat dissipation over a larger span, which a single fan design cannot meet; often, two or more fans are used in parallel to increase airflow and achieve uniform heat dissipation, leading to increased product costs. Furthermore, the lifespan of external fans is affected by the inverter's installation environment, requiring regular maintenance and replacement, further increasing user operating costs. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and to address the problems of difficult assembly of traditional external fans and small coverage of heat dissipation direction, by proposing an external fan bracket mechanism for inverters.

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

[0007] An external fan bracket mechanism for an inverter, wherein the back plate of the inverter is provided with a heat dissipation fin portion, the heat dissipation fin portion includes a plurality of horizontally spaced and vertically arranged heat dissipation fins, and the back plate of the inverter is provided with a groove cavity located at the bottom of the heat dissipation fin portion.

[0008] The external fan bracket mechanism includes a bracket body detachably mounted on the recessed cavity. The bracket body includes a horizontal support and a protective baffle connected to the horizontal support for sealing the recessed cavity. The recessed cavity, the horizontal support, and the protective baffle form a cavity for accommodating the fan.

[0009] A bent carrier plate with a through hole is provided on any free end of the horizontal support. The bent carrier plate and the horizontal support form an obtuse angle. A cooling fan is detachably provided on the side of the bent carrier plate facing the inverter.

[0010] Preferably, the bending plate is provided with a limiting folding edge, and a countersunk core-pulling riveting part is provided between the guard plate and the limiting folding edge to limit the bending angle of the bending plate.

[0011] Preferably, the horizontal support is provided with a plurality of drainage holes distributed in a matrix.

[0012] Preferably, the cooling fan includes a fan body and a fan guard, the fan body and the fan guard are respectively disposed on both sides of the bent carrier plate, and the fan body, the bent carrier plate and the fan guard are detachably locked together by a number of screws.

[0013] Preferably, the inverter is provided with a mating extension cable located in the recessed cavity, and the free end of the mating extension cable is provided with a waterproof connector. The cooling fan is provided with an extension cable, and the free end of the extension cable is provided with a waterproof mating connector that is electrically connected to the waterproof connector.

[0014] Preferably, the horizontal support and / or the guard plate are provided with a bent locking edge having through holes, and the heat dissipation fins are provided with locking pins that correspond one-to-one with the bent locking edge.

[0015] The beneficial effects of this utility model are mainly reflected in:

[0016] 1. The combination of a recessed cavity and an inclined fan allows the exhaust air to cover more fins, requiring only a single fan to meet the need for uniform heat dissipation, effectively controlling costs.

[0017] 2. The bracket body has a simple and ingenious design, which meets the requirements for tilting and locking reliability of the cooling fan.

[0018] 3. The external fan bracket mechanism is easy and efficient to assemble and disassemble, and easy to maintain and repair. Attached Figure Description

[0019] 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:

[0020] Figure 1 This is an exploded structural diagram of an external fan bracket mechanism for an inverter according to this utility model.

[0021] Figure 2 This is a schematic diagram of the overall structure of the external fan bracket mechanism and inverter of this utility model.

[0022] Figure 3 This is a schematic diagram of the assembly structure of the external fan bracket mechanism and the inverter of this utility model.

[0023] Figure 4 This is a side view diagram of the assembly structure of the external fan bracket mechanism and the inverter of this utility model.

[0024] Figure 5 This is a schematic diagram of the inverter structure in this utility model.

[0025] Figure 6 This is a side view of the main body of the bracket in this utility model. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] This utility model provides an external fan bracket mechanism for an inverter, such as... Figure 5 As shown, the inverter 100 has a heat dissipation fin section 300 on its back plate 200. The heat dissipation fin section 300 includes several horizontally spaced and vertically arranged heat dissipation fins 310. When the inverter is exposed to the elements, it mainly dissipates heat naturally through the heat dissipation fins 310. However, to increase the heat dissipation effect, multiple fans need to be installed to blow air along the channels between the heat dissipation fins 310. Installing multiple fans is costly and also inconvenient for installation and maintenance.

[0029] Reference Figure 2 , Figure 3 and Figure 5 As shown, the inverter 100 has a recessed cavity 400 on its back plate 200 located at the bottom of the heat dissipation fin portion 300, i.e. Figure 5 As shown, it generates a wide air cavity that can cover a certain number of heat dissipation fins 310.

[0030] like Figures 1 to 6 As shown, the external fan bracket mechanism includes a bracket body 1 that is detachably mounted on the groove cavity. The bracket body 1 includes a horizontal support 11 and a protective baffle 12 connected to the horizontal support for sealing the groove cavity. A cavity for accommodating the fan is formed between the groove cavity 400, the horizontal support 11, and the protective baffle 12.

[0031] A bent carrier plate 2 with a through hole 20 is provided on any free end of the horizontal support 11. The bent carrier plate 2 and the horizontal support 11 form an obtuse angle. A cooling fan 3 is detachably provided on the side of the bent carrier plate 2 facing the inverter 100.

[0032] Detailed implementation process and principle explanation:

[0033] The bracket body 1 enables the installation and removal of the inverter 100, and the design of the horizontal support 11 and the protective baffle 12 enables the realization of the cavity.

[0034] The obtuse-angled bent carrier plate 2 allows for the assembly and mounting of the cooling fan 3, while the through-hole 20 meets the airflow requirements. Through the obtuse-angled design of the bent carrier plate 2, it can achieve the requirement of tilting towards the heat dissipation fins 300 in the cavity, so that it can generate uniform heat dissipation with a large span in the groove cavity. It should be noted that the bent carrier plate 2 is bendable and adjustable. The angle can be limited according to the thermal simulation and thermal test results of the inverter, and then the bent carrier plate 2 can be effectively fixed according to the fixed angle.

[0035] In one specific embodiment, the bending carrier plate 2 is provided with a limiting folding edge 21, and a countersunk core-pulling riveting part 4 for limiting the bending angle of the bending carrier plate is provided between the guard plate 12 and the limiting folding edge 21.

[0036] The countersunk head core-pulling riveting part 4 can achieve the locking between the guard plate 12 and the limiting folding edge 21, thereby satisfying the locking reliability of the bending carrier plate 2.

[0037] In one specific embodiment, the horizontal support 11 is provided with a plurality of drainage through holes 110 arranged in a matrix.

[0038] This inverter is mainly used outdoors. The drainage hole 110 allows rain and dew to be easily discharged, making the cooling fan safer to use.

[0039] In one specific embodiment, such as Figure 1 As shown, the cooling fan 3 includes a fan body 31 and a fan guard 32. The fan body and the fan guard are respectively located on both sides of the bent carrier plate. The fan body, the bent carrier plate, and the fan guard are detachably locked together by several screws 33.

[0040] This allows for air intake protection and facilitates easy assembly and disassembly.

[0041] In one specific embodiment, the inverter 100 is provided with a mating extension cable 5 located in a recessed cavity, and the free end of the mating extension cable is provided with a waterproof connector 50. The cooling fan is provided with an extension cable 6, and the free end of the extension cable 6 is provided with a waterproof mating connector 60 that is electrically connected to the waterproof connector.

[0042] This method enables power connection, facilitates assembly, and provides high waterproof performance.

[0043] In one specific embodiment, the horizontal support and / or the guard plate are provided with a bent locking edge 7 having through holes, and the heat dissipation fins are provided with locking pins 8 that correspond one-to-one with the bent locking edge.

[0044] The bent locking edge 7 and the locking pin 8 are detachably assembled and connected through the locking pin body, which is easy to assemble and disassemble, and convenient to maintain.

[0045] As described above, the external fan bracket mechanism for an inverter of this utility model utilizes a recessed cavity in conjunction with an inclined fan, allowing the exhaust air to cover more fins. Only a single fan is needed to meet the uniform heat dissipation requirements, effectively controlling costs. The bracket body has a simple and ingenious design, satisfying the requirements for inclined mounting and reliable locking of the cooling fan. The external fan bracket mechanism is easy and efficient to assemble and disassemble, and is easy to maintain and repair.

[0046] 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.

[0047] 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. An external fan bracket mechanism for an inverter, wherein the back plate of the inverter is provided with a heat dissipation fin portion, the heat dissipation fin portion comprising a plurality of horizontally spaced and vertically arranged heat dissipation fins, characterized in that: The inverter's backplate has a recessed cavity located at the bottom of the heat dissipation fins; The external fan bracket mechanism includes a bracket body detachably mounted on the recessed cavity. The bracket body includes a horizontal support and a protective baffle connected to the horizontal support for sealing the recessed cavity. The recessed cavity, the horizontal support, and the protective baffle form a cavity for accommodating the fan. A bent carrier plate with a through hole is provided on any free end of the horizontal support. The bent carrier plate and the horizontal support form an obtuse angle. A cooling fan is detachably provided on the side of the bent carrier plate facing the inverter.

2. The external fan bracket mechanism for an inverter according to claim 1, characterized in that: The bending plate is provided with a limiting folding edge, and a countersunk core-pulling riveting part is provided between the guard plate and the limiting folding edge to limit the bending angle of the bending plate.

3. The external fan bracket mechanism for an inverter according to claim 1, characterized in that: The horizontal support is provided with a matrix of drainage holes.

4. The external fan bracket mechanism for an inverter according to claim 1, characterized in that: The cooling fan includes a fan body and a fan guard. The fan body and the fan guard are respectively located on both sides of the bent carrier plate. The fan body, the bent carrier plate, and the fan guard are detachably locked together by a number of screws.

5. An external fan bracket mechanism for an inverter according to any one of claims 1 to 4, characterized in that: The inverter is provided with a mating extension cable located in the recessed cavity. The free end of the mating extension cable is provided with a waterproof connector. The cooling fan is provided with an extension cable. The free end of the extension cable is provided with a waterproof mating connector that is electrically connected to the waterproof connector.

6. An external fan bracket mechanism for an inverter according to any one of claims 1 to 4, characterized in that: The horizontal support and / or the protective baffle are provided with a bent locking edge with through holes, and the heat dissipation fins are provided with locking pins that correspond one-to-one with the bent locking edge.

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