An air duct structure, a heat dissipation system and an inverter

Abstract

The application discloses a wind channel structure, a heat dissipation system and an inverter. The wind channel structure comprises a wind channel, a wind channel mounting plate is mounted at an air inlet of the wind channel, and a plurality of air inlet holes are formed in the wind channel mounting plate; a turnover component is rotatably mounted in the wind channel, and a protrusion capable of being inserted into the air inlet hole is arranged on the turnover component; when the wind channel takes in air from the air inlet, the turnover component can be turned to a position perpendicular to or inclined to the wind channel mounting plate; when the wind channel stops taking in air from the air inlet, the turnover component is turned to a position where the protrusion is inserted into the air inlet hole, and the dirt block at the air inlet hole is pushed out by the protrusion, that is, the dirt block in the air inlet hole is pushed out in a mechanical mode, so that the dirt block in the air inlet hole is conveniently cleaned, the dirt block removal capacity is improved, and manual removal of the dirt block is avoided, thereby reducing the maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of inverter heat dissipation technology, and in particular to an air duct structure, a heat dissipation system, and an inverter. Background Technology

[0002] Residential inverters and string inverters often use back-mounted heat sinks and axial fans for overall cooling. However, due to the complex operating environment, long-term operation can lead to severe blockage of the air inlet in the duct, high fan resistance, and ineffective heat dissipation. This ultimately causes the inverter to overheat and trigger derating, affecting power generation efficiency.

[0003] Currently, manual inspection is the primary method for removing blockages from the air inlets of the duct, resulting in high maintenance costs. Some methods use reverse-flow fans to blow away blockages from the air inlets, but axial fans used for cooling generally have low air pressure and are ineffective when there is a significant amount of blockage.

[0004] In summary, improving the ability to remove dirt and clogging from air duct inlets is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the first objective of the present invention is to provide a duct structure to improve the ability to remove dirt and blockage from the air inlet of the duct.

[0006] The second objective of this invention is to provide a heat dissipation system.

[0007] A third objective of this invention is to provide an inverter.

[0008] To achieve the first objective mentioned above, the present invention provides the following solution:

[0009] A duct structure, comprising:

[0010] The air duct has an air duct mounting plate installed at its air inlet, and the air duct mounting plate has multiple air inlet holes.

[0011] A flipping component is rotatably mounted inside the air duct, and the flipping component is provided with a protrusion that can be inserted into the air inlet hole;

[0012] When air enters the air duct from the air inlet, the flipping component can flip to a position perpendicular to or inclined to the air duct mounting plate;

[0013] When the air duct stops drawing air from the air inlet, the flipping component flips to the position where the protrusion is inserted into the air inlet hole.

[0014] In one specific implementation, there are multiple protrusions, each corresponding to one of the air inlets.

[0015] In another specific embodiment, the number of the flipping components is at least one, and when the flipping component flips to fit against the air duct mounting plate, the flipping component completely covers the air inlet hole on the air duct mounting plate.

[0016] In another specific embodiment, there are multiple flipping components, and each of the flipping components is sequentially and spaced apart and hinged to the air duct mounting plate.

[0017] In another specific embodiment, when the flipping component flips to fit against the air duct mounting plate, the protrusion inserts into the air inlet hole, and the end opposite to the flipping component extends out of the air inlet hole;

[0018] and / or

[0019] The protrusion is provided with a guide portion at one end away from the flipping component, and the cross-section of the guide portion gradually decreases along the direction away from the flipping component;

[0020] and / or

[0021] The air inlet is provided with a gradually expanding opening at one end facing the air duct, and the cross-section of the gradually expanding opening gradually increases along the direction close to the air duct.

[0022] In another specific implementation, the protrusion is provided with an air duct through hole;

[0023] The air duct structure also includes a forced convection drive component, which is installed inside the air duct and is capable of introducing airflow from the air inlet of the air duct and discharging it from the air outlet of the air duct, or introducing airflow from the air outlet of the air duct and discharging it from the air inlet of the air duct.

[0024] In another specific implementation, the air duct through-hole is a hole of equal diameter;

[0025] or

[0026] The cross-section of the air duct through-hole gradually decreases along the direction away from the flipping component.

[0027] In another specific implementation, the forced convection drive is a fan or blower.

[0028] In another specific implementation, the duct structure further includes a drive device;

[0029] The driving device is connected to the flipping component for driving the flipping component to flip.

[0030] When the number of the flipping components is greater than or equal to 2, the air duct structure further includes a transmission assembly;

[0031] The flipping components are connected by the transmission assembly.

[0032] The various embodiments of the present invention can be combined arbitrarily as needed, and the resulting embodiments are also within the scope of the present invention and are part of the specific implementation of the present invention.

[0033] The air duct structure provided by this invention allows the flipping component to flip to a position perpendicular or inclined to the air duct mounting plate when air enters through the air inlet, preventing the flipping component from blocking the air inlet. When air stops entering through the air inlet, the flipping component flips until the protrusion on the flipping component inserts into the air inlet hole, pushing out the dirt blockage at the air inlet hole through the protrusion. That is, the dirt blockage in the air inlet hole is pushed out mechanically, which facilitates cleaning of the dirt blockage in the air inlet hole, improves the ability to remove dirt blockage, avoids manual removal of dirt blockage, and reduces maintenance costs.

[0034] To achieve the second objective mentioned above, the present invention provides the following solution:

[0035] A heat dissipation system includes a system body and an air duct structure as described in any one of the above descriptions;

[0036] The air duct structure is installed outside the main body of the system.

[0037] Since the heat dissipation system provided by the present invention includes the air duct structure described in any of the above-mentioned items, the beneficial effects of the air duct structure described above are all included in the heat dissipation system disclosed by the present invention.

[0038] To achieve the third objective mentioned above, the present invention provides the following solution:

[0039] An inverter includes an inverter body and a heat dissipation system as described above or an air duct structure as described in any one of the above.

[0040] Since the inverter provided by the present invention includes any of the above-mentioned heat dissipation systems or air duct structures, the beneficial effects of the above-mentioned heat dissipation systems and air duct structures are all included in the inverter disclosed by the present invention. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1This is a partial structural diagram of a duct structure installed on a housing according to an embodiment of the present invention;

[0043] Figure 2 A partial structural schematic diagram of the air duct structure installed on the housing according to another embodiment of the present invention;

[0044] Figure 3 A partial structural schematic diagram of the air duct structure installed on the housing according to another embodiment of the present invention;

[0045] Figure 4 This is a cross-sectional view of the air duct mounting plate and the flipping component combined in one embodiment of the present invention.

[0046] Figure 5 A cross-sectional view of the air duct mounting plate and the flipping component together is provided for another embodiment of the present invention.

[0047] in, Figures 1-5 middle:

[0048] Air duct 101, air duct structure 100, air duct mounting plate 101a, air duct through hole 102a-1, air inlet hole 101a-1, flipping component 102, protrusion 102a, forced convection drive component 103, hinge shaft 104, housing 200, radiator fins 105. Detailed Implementation

[0049] The following will refer to the appendices in the embodiments of the present invention. Figure 1-5 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0050] In the description of this invention, it should be understood that the terms "upper," "lower," "top surface," "bottom surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] Combination Figures 1-3 As shown, the first aspect of the present invention provides an air duct structure 100 for improving the ability to remove dirt and blockages from the air inlet of the air duct 101.

[0052] The air duct structure 100 includes an air duct 101 and a flipping component 102. One end of the air duct 101 is an air inlet, and the other end is an air outlet. Specifically, the air duct 101 is a circumferentially closed cylindrical structure, or it can be formed by a semi-enclosed outer shell sealed and fastened to the outer wall of the housing 200 of the component to be cooled. In this way, the housing 200 of the component to be cooled is incorporated as part of the air duct 101, allowing the cooling gas entering the air duct 101 to flow directly through the housing 200 of the component to be cooled, thus improving heat dissipation efficiency. To further improve heat dissipation efficiency, the air duct 101 can be formed by a sheet metal component. The cross-sectional shape of the air duct 101 is not limited; it can be circular, square, etc. It should be noted that the component to be cooled can be an inverter, or other devices requiring heat dissipation.

[0053] To improve heat dissipation efficiency, the air duct structure 100 also includes radiator fins 105, which are installed inside the air duct 101 and connected to the outer wall of the housing 200 of the component to be dissipated.

[0054] A duct mounting plate 101a is installed at the air inlet of the duct 101, and the duct mounting plate 101a has multiple air inlet holes 101a-1. Specifically, the shape of the duct mounting plate 101a is adapted to the air inlet of the duct 101 so that all airflow enters the duct 101 through the air inlet holes 101a-1 during air intake. The duct mounting plate 101a filters impurities in the airflow, preventing large particles and other impurities from entering the duct 101. It can be understood that the duct mounting plate 101a can be welded to the duct 101, integrally formed, or glued or detachably connected by fasteners. The specific connection method is not limited, and any structure that fixes the duct mounting plate 101a to the duct 101 is within the protection scope of this invention.

[0055] It should be noted that the number and shape of the air inlets 101a-1 are not limited and can be set according to actual needs. The air inlets 101a-1 can be circular holes or square holes, etc. In order to achieve uniform air intake, the present invention discloses that the air inlets 101a-1 are evenly distributed on the air duct mounting plate 101a.

[0056] The flipping component 102 is rotatably mounted inside the air duct 101. Specifically, the flipping component 102 can be hinged to the side wall of the air duct 101 or to the air duct mounting plate 101a.

[0057] The flipping component 102 is provided with a protrusion 102a that can be inserted into the air inlet 101a-1. Since the flipping component 102 is installed in the air duct 101, the protrusion 102a pushes the dirt blockage at the air inlet 101a-1 out from the inside, so that the dirt blockage can fall to the outside.

[0058] When air enters the air duct 101 from the air inlet, the flipping component 102 can be flipped to a position that is perpendicular or inclined to the air duct mounting plate 101a to prevent the air duct mounting plate 101a from obstructing the air intake.

[0059] When the air duct 101 stops taking in air from the air inlet, the flipping component 102 flips to the position where the protrusion 102a is inserted into the air inlet hole 101a-1. This mechanically pushes out the dirt blockage in the air inlet hole 101a-1, making it easier to clean the dirt blockage in the air inlet hole 101a-1. This improves the ability to remove dirt blockages and avoids the need for manual removal, thus reducing maintenance costs.

[0060] In some embodiments, there are multiple protrusions 102a, which are arranged one-to-one with the air inlets 101a-1 to achieve one-time removal of dirt and blockage in all air inlets 101a-1, thereby improving the cleaning efficiency.

[0061] In some embodiments, the number of flipping components 102 is at least one, and when the flipping component 102 is flipped to fit against the air duct mounting plate 101a, the flipping component 102 completely covers the air inlet hole 101a-1 on the air duct mounting plate 101a, so that when the air duct structure 100 is not in use, the air inlet can be blocked to prevent external impurities from entering the air duct 101.

[0062] In some embodiments, such as Figure 1 As shown, there is one flipping component 102, and one end of it is hinged to one side of the air duct mounting plate 101a.

[0063] Of course, there can be multiple flip-up components 102, and each flip-up component 102 is sequentially hinged to the air duct mounting plate 101a at intervals. For example... Figure 2 As shown, there are two flipping components 102. One flipping component 102 is hinged to each side of the duct mounting plate 101a, meaning the opening and closing directions of the two flipping components 102 are opposite. "Open" means the flipping component 102 flips to expose the air inlet hole 101a-1, and "close" means the flipping component 102 flips to insert the protrusion 102a into the air inlet hole 101a-1. When the two flipping components 102 are identical, they are symmetrically installed on the duct mounting plate 101a about its line of symmetry. Here, the line of symmetry of the duct mounting plate 101a refers to the line of symmetry along the direction perpendicular to the line connecting the two flipping components 102. It should be noted that, alternatively, the two flipping components 102 can be hinged to the duct mounting plate 101a at intervals along the direction from one side to the other. In this case, the opening and closing directions of the two flipping components 102 are the same.

[0064] It should be noted that the number of flipping components 102 can also be set to 3 or more. Taking 3 flipping components 102 as an example, Figure 3 As shown, three flipping components 102 are sequentially hinged to the air duct mounting plate 101a at intervals along the direction from one side to the other, and the opening and closing directions of the three flipping components 102 are the same.

[0065] To facilitate the driving of the flipping component 102, the present invention discloses that the air duct structure 100 also includes a driving device, which is connected to the flipping component 102 for driving the flipping component 102 to flip.

[0066] It should be noted that the driving device can be an electric motor or a rotary cylinder, etc.

[0067] Specifically, the flipping component 102 is fixed on the hinge shaft 104, which is rotatably mounted in the air duct 101 via a bearing, and at least one end extends out of the air duct 101. The drive device is located outside the air duct 101 and is connected to the end of the hinge shaft 104 that extends out of the air duct 101.

[0068] This invention places the drive device outside the air duct 101. On the one hand, this avoids the drive device occupying space inside the air duct 101 and affecting air intake; on the other hand, it facilitates the installation of the drive device. Specifically, the drive device can be installed on the outer casing of the component to be cooled.

[0069] When the number of flipping components 102 is greater than or equal to two, the air duct structure 100 also includes a transmission assembly, through which the flipping components 102 are connected. Specifically, the transmission assembly can be a gear and rack structure, a conveyor belt structure, or a gear set, etc.

[0070] By setting up a transmission component, the present invention enables one drive device to simultaneously control the opening and closing of at least two flipping parts 102, thereby reducing the number of drive devices and saving costs.

[0071] In some embodiments, when the flipping component 102 is flipped to fit against the air duct mounting plate 101a, the protrusion 102a is inserted into the air inlet hole 101a-1, and one end of the protrusion 102 extends out of the air inlet hole 101a-1, so as to completely push out the dirt blockage in the air inlet hole 101a-1, avoiding the problem that the dirt blockage in the air inlet hole 101a-1 cannot be dislodged because the length of the protrusion 102 inserted into the air inlet hole 101a-1 is too short.

[0072] To facilitate the entry of the protrusion 102a into the air inlet 101a-1, a guide portion is provided at the end of the protrusion 102a facing away from the flipping component 102, and the cross-section of the guide portion gradually decreases along the direction away from the flipping component 102. Alternatively, a gradually expanding opening can be provided at the end of the air inlet 101 facing the air duct 101, either simultaneously or separately, and the cross-section of the gradually expanding opening gradually increases along the direction close to the air duct 101 to facilitate the entry of the protrusion 102a into the air inlet 101a-1.

[0073] In some embodiments, the air duct structure 100 further includes a forced convection drive 103, which is installed in the air duct 101 and is capable of introducing airflow from the air inlet of the air duct 101 and discharging it from the air outlet of the air duct 101, or introducing airflow from the air outlet of the air duct 101 and discharging it from the air inlet of the air duct 101.

[0074] Specifically, the forced convection drive 103 is a fan or blower, etc. Taking the forced convection drive 103 as a fan as an example, when the fan rotates forward, the airflow enters the air duct 101 from the air inlet and exits from the air outlet of the air duct 101; when the fan rotates in reverse, the airflow enters the air duct 101 from the air outlet and exits from the air inlet.

[0075] like Figure 4 and Figure 5 As shown, a duct passage 102a-1 is provided on the protrusion 102a. The duct passage 102a-1 ensures the connection between the duct 101 and the outside when the protrusion 102a is inserted into the air inlet 101a-1. To further improve the ability to remove dirt and blockages, this invention discloses that when the protrusion 102a is inserted into the air inlet 101a-1, the forced convection drive 103 reverses the flow direction to introduce airflow from the air outlet and discharges the fluid through the duct passage 102a-1. When the airflow passes through the duct passage 102a-1, it can blow off the dirt and blockages stuck to the protrusion 102a.

[0076] To facilitate control of the drive device and enable the drive device to drive the flipping component 102 to open and close, this invention discloses that the drive device is signal-connected to the forced convection drive component 103. When the forced convection drive component 103 introduces external airflow into the air duct 101 through the air inlet, the drive device drives the flipping component 102 to flip to a position perpendicular or inclined to the air duct mounting plate 101a, so as to expose the air inlet hole 101a-1. When the forced convection drive component 103 introduces external airflow into the air duct 101 through the air outlet or stops working, the drive device drives the flipping component 102 to flip until the protrusion 102a is inserted into the air inlet hole 101a-1.

[0077] Furthermore, such as Figure 4As shown, the present invention discloses that the air duct through-hole 102a-1 is a hole of equal diameter. It should be noted that the air duct through-hole 102a-1 can also be configured such that the cross-section gradually decreases along the direction away from the flipping component 102, such as... Figure 5 As shown.

[0078] When the airflow passes through the air passage 102a-1 and exits the air passage 101, the cross-section of the air passage 102a-1 gradually decreases along the direction away from the flipping component 102. As a result, the airflow velocity increases when it passes through the air passage 102a-1, which helps to blow off the dirt and blockage stuck on the protrusion 102a.

[0079] The present invention has the following advantages:

[0080] (1) It avoids the need for manual cleaning of dirt and blockages, reducing the cost of manual maintenance of air intake blockages;

[0081] (2) When the fan is reversed to blow off the dirt blockage, the dirt blockage is first pushed out of the air inlet 101a-1 by the protrusion 102a, and then the fan is started to blow off the dirt blockage stuck on the protrusion 102a, which reduces the required wind pressure and avoids the problem of insufficient wind pressure.

[0082] (3) When the air duct structure 100 is not inlet air, the flipping part 102 is flipped so that the protrusion 102a is inserted into the air inlet hole 101a-1, which pushes out the dirt blockage in time, reduces the risk of foreign object blockage, and increases the reliability of heat dissipation.

[0083] A second aspect of the present invention provides a heat dissipation system, including a system body and an air duct structure 100 as described in any of the above embodiments, wherein the air duct structure 100 is installed outside the system body.

[0084] Since the heat dissipation system provided by the present invention includes the air duct structure 100 in any of the above embodiments, the beneficial effects of the air duct structure 100 are all included in the heat dissipation system disclosed by the present invention.

[0085] A third aspect of the present invention provides an inverter, including an inverter body and a heat dissipation system as described in the above embodiments or an air duct structure 100 as described in any of the above embodiments.

[0086] Since the inverter provided by the present invention includes the heat dissipation system or air duct structure 100 in any of the above embodiments, the beneficial effects of the heat dissipation system and air duct structure 100 are all included in the inverter disclosed by the present invention.

[0087] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0088] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.

[0089] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0090] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A duct structure (100), characterized in that, include: Air duct (101), an air duct mounting plate (101a) is installed at the air inlet of the air duct (101), and multiple air inlet holes (101a-1) are opened on the air duct mounting plate (101a). A flipping component (102) is rotatably installed in the air duct (101), and the flipping component (102) is provided with a protrusion (102a) that can be inserted into the air inlet (101a-1). The protrusion (102a) is provided with an air duct through hole (102a-1). The air duct structure (100) also includes a forced convection drive (103), which is installed in the air duct (101) and can introduce airflow from the air inlet of the air duct (101) and discharge it from the air outlet of the air duct (101), or introduce airflow from the air outlet of the air duct (101) and discharge it from the air inlet of the air duct (101). When the air duct (101) takes in air from the air inlet, the flipping component (102) can flip to a position perpendicular or inclined to the air duct mounting plate (101a) to mechanically push out the blockage, and the air duct through hole (102a-1) is connected to the air inlet (101a-1) to allow reverse airflow to pass through to assist in clearing the blockage; When the air duct (101) stops drawing air from the air inlet, the flipping component (102) flips to the position where the protrusion (102a) is inserted into the air inlet hole (101a-1).

2. The air duct structure (100) according to claim 1, characterized in that, There are multiple protrusions (102a), and each protrusion corresponds to one of the air inlets (101a-1).

3. The air duct structure (100) according to claim 1, characterized in that, The number of the flipping component (102) is at least one, and when the flipping component (102) flips to fit against the air duct mounting plate (101a), the flipping component (102) completely covers the air inlet hole (101a-1) on the air duct mounting plate (101a).

4. The air duct structure (100) according to claim 1, characterized in that, The number of the flipping components (102) is multiple, and each of the flipping components (102) is sequentially hinged to the air duct mounting plate (101a) at intervals.

5. The air duct structure (100) according to claim 1, characterized in that, When the flipping component (102) flips to fit against the air duct mounting plate (101a), the protrusion (102a) is inserted into the air inlet hole (101a-1), and the end opposite to the flipping component (102) extends out of the air inlet hole (101a-1). and / or The protrusion (102a) is provided with a guide portion at one end away from the flipping component (102), and the cross-section of the guide portion gradually decreases along the direction away from the flipping component (102); and / or The air inlet (101a-1) is provided with a gradually expanding opening at one end facing the air duct (101), and the cross-section of the gradually expanding opening gradually increases along the direction close to the air duct (101).

6. The air duct structure (100) according to claim 1, characterized in that, The air duct through-hole (102a-1) is a hole of equal diameter; Alternatively, the cross-section of the air duct through-hole (102a-1) gradually decreases along the direction away from the flipping component (102).

7. The air duct structure (100) according to any one of claims 1-6, characterized in that, It also includes a drive unit; The driving device is connected to the flipping component (102) for driving the flipping component (102) to flip. When the number of the flipping components (102) is greater than or equal to 2, the air duct structure (100) further includes a transmission assembly; The flipping components (102) are connected by the transmission assembly.

8. A heat dissipation system, characterized in that, Includes the system body and the air duct structure (100) as described in any one of claims 1-7; The air duct structure (100) is installed outside the main body of the system.

9. An inverter, characterized in that, It includes the inverter body and the heat dissipation system as described in claim 8 or the air duct structure as described in any one of claims 1-7 (100).

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