Air duct structure with upper and lower level flow guide protection

Abstract

An air duct structure with upper and lower level diversion protection comprises a double-layer circuit board, a heat dissipation assembly and an air duct insulation sheet, the double-layer circuit board is distributed in an upper and lower level mode, the upper layer of the double-layer circuit board is a first circuit board, the lower layer of the double-layer circuit board is a second circuit board, and the heat dissipation assembly comprises a heat dissipation fan and heat dissipation fins. The air duct insulation sheets comprise a first air duct insulation sheet and a second air duct insulation sheet, the first air duct insulation sheet covers the top and two side surfaces of a to-be-cooled component on the first circuit board, and the second air duct insulation sheet covers two side surfaces of a to-be-cooled component on the second circuit board and is connected to two side plates of the case; the second air duct insulation sheet further covers the two side faces and the tops of the cooling fan and the cooling fins, the first air duct insulation sheet covers the upper portion of the second air duct insulation sheet to form a complete air duct, and the air duct structure with upper and lower layer flow guide protection is good in flow guide effect, capable of saving cost, convenient to install and high in adaptability.

Description

TECHNICAL FIELD

[0001] The utility model relates to inverter air duct technical field, concretely relates to an air duct structure of upper and lower level flow guiding protection. BACKGROUND

[0002] ‌Inverter needs to pass through air duct structure heat dissipation, mainly because inverter will produce a large amount of heat in the working process, if not timely and effectively heat dissipation, possibly lead to inverter overheating, and then influence its performance and life, air duct structure is one of the key factors to ensure inverter heat dissipation efficiency, air duct passes through reasonable design and installation, ensure that air is unobstructed, can help heat to dissipate quickly, but the air duct structure of inverter currently is usually for single layer structure, present a character, lack the air duct structure of upper and lower level, such as the direct application of single layer air duct structure of a character to upper and lower level, will not only waste installation space, and will lead to poor heat dissipation efficiency, flow guiding effect is poor, and if air duct adopts sheet material connection, the air tightness of each piece connecting place is not good, flow guiding protection ability is poor, if air duct adopts integral forming plastic material, then needs to open mould production, the cost is high, therefore urgently needs an air duct structure of upper and lower level flow guiding protection to solve the above problems. SUMMARY

[0003] Therefore, the utility model provides an air duct structure of upper and lower level flow guiding protection with good flow guiding effect, cost saving, convenient installation and strong adaptability.

[0004] An air duct structure of upper and lower level flow guiding protection, including double -layer circuit board, heat dissipation component and air duct insulating sheet, the double -layer circuit board is spaced apart distribution in upper and lower level, the upper layer of double -layer circuit board is first circuit board, and the lower layer is second circuit board, the heat dissipation component includes heat dissipation fan and heat dissipation fin, the air duct insulating sheet includes first air duct insulating sheet and second air duct insulating sheet, the first air duct insulating sheet covers the top and two side faces of the first circuit board on the component to be heat dissipated, the second air duct insulating sheet covers the two side faces of the second circuit board on the component to be heat dissipated and is connected to the two side plates of cabinet, the second air duct insulating sheet also covers the two side faces and top of heat dissipation fan and heat dissipation fin, the first air duct insulating sheet is covered in the upper vacancy of second air duct insulating sheet to form complete air duct.

[0005] Further, the first air duct insulating sheet includes a first extension sheet, the second air duct insulating sheet includes a second top sheet and two second side sheets, each second side sheet includes a main side portion extending downward from the second top sheet, and a side extension portion extending against the direction of air flow, the two side extension portions and the second top sheet define an upper opening, and the first extension sheet completely covers the upper opening to ensure the flow guiding effect at the junction of the first air duct insulating sheet and the second air duct insulating sheet.

[0006] Further, two of the side extensions extend into the space below the first circuit board and are located between the double-layer circuit board, and each of the side extensions has a gap between the side edge of the first air duct insulation sheet to avoid the first circuit board.

[0007] Further, the first extension sheet and the second air duct insulation sheet are detachably connected by fasteners.

[0008] Further, the upper and lower level flow guide protection air duct structure further comprises a case air outlet of a case air inlet, the heat dissipation fan is arranged at the case air outlet, and the double-layer circuit board is arranged at the case air inlet.

[0009] Further, the first air duct insulation sheet and the second air duct insulation sheet define air ducts at both ends corresponding to the case air inlet and the case air outlet.

[0010] Further, the fins of the heat dissipation sheet are parallel to the air direction to enhance the air convection capacity and improve the heat dissipation efficiency.

[0011] Further, the heat dissipation fan and the heat dissipation sheet are arranged along the same straight line.

[0012] Further, the heat dissipation sheet has two or more groups, the heat dissipation fan has two or more, the number of groups of the heat dissipation sheet is equal to the number of the heat dissipation fan, and each group of the heat dissipation sheet corresponds to each heat dissipation fan.

[0013] Further, the shape of the air duct insulation sheet is continuous, the outer periphery of the first air duct insulation sheet and the second air duct insulation sheet is continuously connected, and the air duct is single-channel in the vertical direction and the horizontal direction, and the inside of the second air duct insulation sheet is communicated with the inside of the first air duct insulation sheet.

[0014] Compared with the prior art, the utility model has at least the following beneficial effects:

[0015] First, the upper and lower level flow guide protection air duct structure adopts the first air duct insulation sheet and the second air duct insulation sheet to form the upper and lower level air ducts, the lower peripheral edge of the first air duct insulation sheet and the upper peripheral edge of the second air duct insulation sheet have an extension overlap part, and the lower peripheral edge of the first air duct insulation sheet completely covers the upper peripheral edge of the second air duct insulation sheet, so that the gap overlap design makes the interface flow guide protection effect good, the air tightness good and the heat dissipation efficiency high.

[0016] Second, the case, the first air duct insulation sheet, the second air duct insulation sheet and the radiator of the upper and lower level flow guide protection air duct structure only need to be connected by a few fasteners, and the installation is convenient.

[0017] Third, the air duct structure of the upper and lower level flow protection adopts sheet type connection, has strong adaptability, flexible combination, can adapt to the structure of upper and lower level or more levels, does not need to open a mold, is favorable for reducing cost, and relative to the traditional one word type air duct, can also save installation space. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a three-dimensional schematic view of the air duct structure of the upper and lower level flow protection of the embodiment of the utility model.

[0019] Fig. 2 It is an exploded schematic view of the air duct structure of the upper and lower level flow protection of the embodiment of the utility model.

[0020] 1, first circuit board;2, second circuit board;3, cooling fan;4, cooling fin;5, first air duct insulating sheet;51, first extension sheet;6, second air duct insulating sheet;61, second top sheet;62, second side sheet;621, main side part;622, side extension part;7, fastener;8, machine case air inlet;9, machine case air outlet. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments;Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of the utility model protection.

[0022] Please refer to Figs. 1-2 , show the air duct structure of the upper and lower level flow protection provided by the embodiment of the utility model, including double-layer circuit board, cooling assembly and air duct insulating sheet, the double-layer circuit board is spaced apart distribution in upper and lower level, the upper layer of the double-layer circuit board is first circuit board 1, the lower layer is second circuit board 2, the cooling assembly includes cooling fan 3 and cooling fin 4, the air duct insulating sheet includes first air duct insulating sheet 5 and second air duct insulating sheet 6, the first air duct insulating sheet 5 covers the top and two side faces of the first circuit board 1 on the component to be cooled, the second air duct insulating sheet 6 covers the two side faces of the second circuit board 2 on the component to be cooled and is connected to the two side plates of the machine case, the second air duct insulating sheet 6 also covers the two side faces and top of the cooling fan 3 and cooling fin 4, the first air duct insulating sheet 5 is covered in the upper part vacancy of the second air duct insulating sheet 6 to form complete air duct.

[0023] Specifically, the first air duct insulation sheet 5 comprises a first extension sheet 51, the second air duct insulation sheet 6 comprises a second top sheet 61 and two second side sheets 62, each of the second side sheets 62 comprises a main side portion 621 extending downward from the second top sheet 61 and a side extension portion 622 extending against the air flow direction, the two side extension portions 622 and the second top sheet 61 define an upper opening, and the first extension sheet 51 completely covers the upper opening to ensure the flow guiding effect at the joint of the first air duct insulation sheet 5 and the second air duct insulation sheet 6.

[0024] More specifically, the two side extension portions 622 extend into the lower space of the first circuit board 1 and are located between the double-layer circuit boards, and each of the side extension portions 622 has a gap with the side edge of the first air duct insulation sheet 5 to avoid the first circuit board 1.

[0025] In some specific embodiments, the components with high heat dissipation requirements on the double-layer circuit boards, such as inverters, are enclosed by the side extension portions 622 and the side edges of the first air duct insulation sheet 5 to concentrate heat dissipation, and the components with low heat dissipation requirements on the double-layer circuit boards are not enclosed in the air duct, which is beneficial to targetedly improve the heat dissipation effect and save the air duct installation space.

[0026] More specifically, the first extension sheet 51 and the second air duct insulation sheet 6 are detachably connected by fasteners 7.

[0027] Specifically, the air duct structure with the up-and-down level flow guiding protection further comprises a cabinet air outlet 9 of a cabinet air inlet 8, the heat dissipation fan 3 is arranged at the cabinet air outlet 9, and the double-layer circuit board is arranged at the cabinet air inlet 8, and the cabinet air inlet 8 and the cabinet air outlet 9 are both provided with air holes to pass through the air holes to enter air or dissipate heat.

[0028] More specifically, the air duct defined by the first air duct insulation sheet 5 and the second air duct insulation sheet 6 corresponds to the cabinet air inlet 8 and the cabinet air outlet 9 at both ends respectively.

[0029] Specifically, the fins of the heat dissipation sheet 4 are parallel to the wind direction to enhance the air convection capacity and thus improve the heat dissipation efficiency.

[0030] Specifically, the heat dissipation fan 3 and the heat dissipation sheet 4 are arranged along the same straight line.

[0031] In some specific embodiments, air enters from the air holes of the cabinet air inlet 8, the heat of the components to be cooled on the first circuit board 1 and the second circuit board 2 flows to the heat dissipation sheet 4, and then is extracted by the heat dissipation fan 3 and dissipated to the outside of the cabinet through the air holes of the cabinet air outlet 9.

[0032] Specifically, the heat dissipation fins 4 have two or more groups, the heat dissipation fans 3 have two or more, the number of groups of the heat dissipation fins 4 is equal to the number of the heat dissipation fans 3, and each group of the heat dissipation fins 4 corresponds to each heat dissipation fan 3.

[0033] Specifically, the heat dissipation fins 4 have two or more groups, the heat dissipation fans 3 have two or more, the number of groups of the heat dissipation fins 4 is equal to the number of the heat dissipation fans 3, and each group of the heat dissipation fins 4 corresponds to each heat dissipation fan 3.

[0034] In some specific embodiments, when the first heat dissipation insulation sheet 5 and the second heat dissipation insulation sheet 6 are installed, the second heat dissipation insulation sheet 6 is first fixed on the top of the heat dissipation fin 4 by screws, then the first heat dissipation insulation sheet 5 is fixed on the upper part of the second heat dissipation insulation sheet 6 at the overlapping joint of the two heat dissipation insulation sheets by screws, and finally the first heat dissipation insulation sheet 5 is fixed with the case by screws.

[0035] In summary, the up-and-down hierarchical flow guide protection air duct structure combines the first heat dissipation insulation sheet 5 and the second heat dissipation insulation sheet 6 to form an up-and-down hierarchical air duct, and the lower peripheral edge of the first heat dissipation insulation sheet 5 and the upper peripheral edge of the second heat dissipation insulation sheet 6 have an extended overlapping part, and the lower peripheral edge of the first heat dissipation insulation sheet 5 completely covers the upper peripheral edge of the second heat dissipation insulation sheet 6. The overlapping design at the gap makes the joint have good flow guide protection effect, good air tightness and high heat dissipation efficiency. At the same time, only a few fasteners 7 are needed to connect the case, the first heat dissipation insulation sheet 5, the second heat dissipation insulation sheet 6 and the heat dissipation fin 4, which is convenient to install. The sheet type connection has strong adaptability and can adapt to up-and-down hierarchical or more hierarchical model structures without the need for mold opening, which is conducive to cost reduction, and can also save installation space compared with the traditional linear air duct.

[0036] It should be noted that the utility model is not limited to the above-mentioned embodiments, and other changes can be made by those skilled in the art according to the creative spirit of the utility model, and the changes made according to the creative spirit of the utility model should be included in the scope of protection claimed by the utility model.

Claims

1. A wind channel structure with upper and lower tier wind deflector protection, characterized by, The application relates to a double-layer circuit board, a heat-dissipating assembly and a wind channel insulating sheet, wherein the double-layer circuit board is arranged in an upper and lower level, the upper layer is a first circuit board, the lower layer is a second circuit board, the heat-dissipating assembly comprises a heat-dissipating fan and a heat-dissipating sheet, the wind channel insulating sheet comprises a first wind channel insulating sheet and a second wind channel insulating sheet, the first wind channel insulating sheet covers the top and two side faces of components on the first circuit board, the second wind channel insulating sheet covers the two side faces of components on the second circuit board and is connected to the two side plates of a cabinet, the second wind channel insulating sheet also covers the two side faces and the top of the heat-dissipating fan and the heat-dissipating sheet, and the first wind channel insulating sheet is combined with the upper empty part of the second wind channel insulating sheet to form a complete wind channel.

2. The wind channel structure of claim 1, wherein, The first wind channel insulating sheet comprises a first extension sheet, the second wind channel insulating sheet comprises a second top sheet and two second side sheets, each second side sheet comprises a main side part extending downward from the second top sheet and a side extension part extending against the wind flow direction, the two side extension parts and the second top sheet define an upper opening, and the first extension sheet completely covers the upper opening to ensure the flow guiding effect at the joint of the first wind channel insulating sheet and the second wind channel insulating sheet.

3. The wind channel structure of claim 2, wherein, The two side extension parts extend into the lower empty part of the first circuit board and are located between the double-layer circuit boards, and each side extension part has a gap with the side edge of the first wind channel insulating sheet to avoid the first circuit board.

4. The wind channel structure of claim 2, wherein, The first extension sheet and the second wind channel insulating sheet are detachably connected through fasteners.

5. The air duct structure with upper and lower level flow diversion protection according to claim 1, characterized in that: The upper and lower level flow guiding protection wind channel structure further comprises a cabinet air outlet of a cabinet air inlet, the heat-dissipating fan is arranged in the cabinet air outlet, the double-layer circuit board is arranged in the cabinet air inlet, and the cabinet air inlet and the cabinet air outlet are provided with air holes to pass through the air holes to enter air or dissipate heat.

6. The wind channel structure of claim 5, wherein, The wind channel defined by the first wind channel insulating sheet and the second wind channel insulating sheet has two ends corresponding to the cabinet air inlet and the cabinet air outlet respectively.

7. The wind channel structure of claim 1, wherein, The fins of the heat-dissipating sheet are parallel to the wind direction to enhance the wind convection capacity and improve the heat-dissipating efficiency.

8. The wind channel structure of claim 1, wherein, The heat-dissipating fan and the heat-dissipating sheet are arranged along the same straight line.

9. The wind channel structure of claim 1, wherein, The heat-dissipating sheet has two groups or more groups, the heat-dissipating fan has two or more, the number of groups of the heat-dissipating sheet is equal to the number of the heat-dissipating fan, and each group of the heat-dissipating sheet corresponds to each heat-dissipating fan.

10. The wind channel structure of claim 1, wherein, The shape of the wind channel insulating sheet is continuous, the outer periphery of the first wind channel insulating sheet and the second wind channel insulating sheet is continuously connected, and the wind channel is single-channel in the vertical direction and the horizontal direction, and the interior of the second wind channel insulating sheet is communicated with the interior of the first wind channel insulating sheet.

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