Inverter heat dissipation structure and inverter

Abstract

The inverter heat dissipation structure comprises a cabinet housing, a cabinet cover plate and an air supply mechanism, the cabinet housing is provided with an inner cavity with an opening on the upper side, a partition plate is arranged in the inner cavity, the partition plate is horizontally arranged and divides the inner cavity into an upper layer temperature zone and a lower layer temperature zone, and the upper layer temperature zone and the lower layer temperature zone are arranged in the cabinet housing. The case cover plate covers the upper side of the case shell and can shield an upper side opening of the inner cavity, the air supply mechanism is arranged in the inner cavity, and ventilation can be achieved between the left side of the upper-layer temperature area and the left side of the lower-layer temperature area and between the right side of the upper-layer temperature area and the right side of the lower-layer temperature area. The air supply mechanism can enable airflow to be formed in the inner cavity and enable the airflow to circularly flow in the upper-layer temperature area and the lower-layer temperature area. According to the utility model, the upper and lower layered temperature zones are arranged to adapt to the heat dissipation requirements of different devices, and the air supply mechanism is utilized to form air flow in the inner cavity and enable the air flow to circularly flow between the upper and lower temperature zones, so that the heat dissipation efficiency of the inner cavity of the inverter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic systems, in particular to an inverter heat dissipation structure and an inverter. Background Art

[0002] In existing photovoltaic systems, the inverter, a key component connecting photovoltaic modules to the power grid, significantly impacts the overall power generation efficiency and power quality of the photovoltaic system. As the power of photovoltaic modules increases, the power of the corresponding inverters also increases. Consequently, the losses of the related power components used in the inverter also increase, ultimately leading to accelerated heat accumulation within the inverter cavity. This is extremely detrimental to temperature-sensitive components within the inverter cavity, seriously affecting their lifespan. Existing heat dissipation methods are relatively simple and do not take into account the layout of related components with different heat dissipation requirements, as well as the turbulent airflow within the cavity. Consequently, the heat conduction efficiency between the related components and the surrounding air is low, and the inverter's heat dissipation structure needs to be improved. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an inverter heat dissipation structure that utilizes upper and lower temperature zones and utilizes an air supply mechanism to generate airflow within the inner cavity and circulate the airflow between the upper and lower temperature zones. This structure helps to increase the heat transfer rate between the inner and outer casings of the chassis, thereby improving the heat dissipation efficiency of the inverter cavity.

[0004] The utility model also provides an inverter with the inverter heat dissipation structure.

[0005] According to the inverter heat dissipation structure described in the embodiment of the first aspect of the present utility model, it includes a chassis shell, a chassis cover and an air supply mechanism, the chassis shell has an inner cavity with an upper opening, a partition plate is provided in the inner cavity, the partition plate is horizontally arranged and separates the upper temperature zone and the lower temperature zone in the inner cavity, the chassis cover is arranged on the upper side of the chassis shell and can block the upper opening of the inner cavity, the air supply mechanism is arranged in the inner cavity, and ventilation can be achieved between the left side of the upper temperature zone and the left side of the lower temperature zone, as well as between the right side of the upper temperature zone and the right side of the lower temperature zone. The air supply mechanism can form an airflow in the inner cavity and circulate the airflow in the upper temperature zone and the lower temperature zone.

[0006] According to the inverter heat dissipation structure described in the embodiments of the present utility model, it has at least the following beneficial effects: When in use, related devices can be arranged in the upper temperature zone and the lower temperature zone respectively according to their different heat dissipation requirements. Through the setting of the upper and lower stratified temperature zones, it is beneficial to adapt to the heat dissipation requirements of different devices; by using the air supply mechanism to form an air flow in the inner cavity and make the air flow circulate between the upper temperature zone and the lower temperature zone, it is beneficial to improve the overall air circulation speed inside the chassis housing and avoid the generation of turbulent flow, thereby increasing the heat conduction rate between the heat inside the chassis housing and the chassis housing, and further enhancing the heat convection and heat radiation efficiency between the chassis housing and the external air, so as to improve the heat dissipation efficiency of the inner cavity of the inverter.

[0007] According to some embodiments of the present utility model, the air supply mechanism includes a first fan and a second fan. The first fan is arranged on the left side of the inner cavity, and the second fan is arranged on the right side of the inner cavity.

[0008] According to some embodiments of the present utility model, the first fan is arranged on the left side of the upper temperature zone and there is a spacing distance between the first fan and the left wall of the inner cavity. The first fan can blow air to the upper temperature zone.

[0009] According to some embodiments of the present utility model, the second fan is arranged on the right side of the upper temperature zone and there is a spacing distance between the second fan and the right wall of the inner cavity. The second fan can extract air from the upper temperature zone.

[0010] According to some embodiments of the present utility model, there are multiple second fans and they are arranged at intervals in the front-rear direction.

[0011] According to some embodiments of the present utility model, baffles are provided on the front side and / or the rear side of the partition plate. The baffles can correspondingly limit the air flow in the lower temperature zone from entering the upper temperature zone from the front side and / or the rear side.

[0012] According to some embodiments of the present utility model, wire passing holes are provided on the baffles, and deformable retaining pieces are provided at the wire passing holes.

[0013] According to some embodiments of the present utility model, a radiator is provided on the lower side wall of the inner cavity, and heat dissipation fins are provided below the chassis housing for the radiator.

[0014] According to some embodiments of the present utility model, a protective shell is provided on the lower side of the chassis housing. The protective shell covers the radiator and defines an air cavity between the protective shell and the lower side of the chassis housing. The protective shell is provided with ventilation openings, and the air cavity can be communicated with the external atmosphere through the ventilation openings.

[0015] According to the inverter described in the second aspect embodiments of the present utility model, it includes the inverter heat dissipation structure according to the first aspect embodiments of the present utility model above.

[0016] According to the inverter described in the embodiments of the present invention, it has at least the following beneficial effects: By adopting the above-mentioned inverter heat dissipation structure, using the temperature zone setting of upper and lower layers to adapt to the heat dissipation requirements of different devices, and using the air supply mechanism to form an air flow in the inner cavity and make the air flow circulate between the upper and lower temperature zones, so as to improve the heat dissipation efficiency of the inner cavity of the inverter and reduce the influence on the service life of related devices.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 is a schematic structural diagram of the inverter heat dissipation structure according to the embodiment of the present invention;

[0020] Figure 2 is Figure 1 a partial structural diagram of the inverter heat dissipation structure in

[0021] Figure 3 is Figure 1 one of the cross-sectional structural diagrams of the inverter heat dissipation structure in

[0022] Figure 4 is Figure 1 the other cross-sectional structural diagram of the inverter heat dissipation structure in

[0023] Reference numerals:

[0024] chassis housing 100, inner cavity 101, upper temperature zone 102, lower temperature zone 103, wire passing hole 104, atmosphere cavity 105, ventilation port 106, partition plate 110, baffle 120, retaining piece 121, radiator 130, heat dissipation fin 131, protective shell 140;

[0025] chassis cover 200;

[0026] first fan 310, second fan 320. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0028] In the description of the present utility model, it should be understood that if orientation descriptions are involved, such as the orientations or positional relationships indicated by up, down, front, back, left, right, etc., are based on the orientations or positional relationships shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0029] In the description of the present utility model, if words such as several, greater than, less than, exceeding, above, below, within, etc. appear, among them, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number.

[0030] If the descriptions of first and second are only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features or implicitly specifying the sequence relationship of the indicated technical features.

[0031] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0032] Referring to Figure 1 and Figure 3 , an inverter heat dissipation structure includes a chassis housing 100, a chassis cover 200, and a air supply mechanism. The chassis housing 100 has an inner cavity 101 with an upper opening. A partition plate 110 is provided in the inner cavity 101. The partition plate 110 is horizontally arranged and divides an upper temperature zone 102 and a lower temperature zone 103 in the inner cavity 101. The chassis cover 200 is covered on the upper side of the chassis housing 100 and can block the upper opening of the inner cavity 101. The air supply mechanism is arranged in the inner cavity 101. It is possible to ventilate between the left sides of the upper temperature zone 102 and the lower temperature zone 103 and between the right sides of the upper temperature zone 102 and the lower temperature zone 103. The air supply mechanism can form an air flow in the inner cavity 101 and make the air flow circulate between the upper temperature zone 102 and the lower temperature zone 103.

[0033] It can be understood that as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the horizontally arranged partition plate 110 divides the upper temperature zone 102 and the lower temperature zone 103 in the inner cavity 101. The left and right sides of the two temperature zones can be ventilated and connected. During use, related devices can be arranged in the upper temperature zone 102 and the lower temperature zone 103 respectively according to their different heat dissipation requirements. For example, some devices with higher heat dissipation requirements such as relays and inductors are arranged in the upper temperature zone 102, and some devices with lower heat dissipation requirements are arranged in the lower temperature zone 103. Through the upper and lower stratified temperature zone settings, the blowing conditions of the air supply mechanism for the corresponding temperature zones can be set according to the device arrangement in different temperature zones, which is beneficial to adapting to the heat dissipation requirements of different devices; by using the air supply mechanism, an air flow is formed in the inner cavity 101 and the air flow circulates between the upper temperature zone 102 and the lower temperature zone 103, which is beneficial to improving the overall air circulation speed inside the chassis housing 100 and avoiding the generation of turbulence, thereby increasing the heat conduction rate between the heat inside the chassis housing 100 and the chassis housing 100, and further improving the heat convection and heat radiation efficiency between the chassis housing 100 and the outside air, so as to achieve the improvement of the heat dissipation efficiency of the inverter inner cavity.

[0034] In actual application, the air supply mechanism can blow air in the inner cavity 101 through a fan to form an air flow in the inner cavity 101 and make the air flow circulate between the upper temperature zone 102 and the lower temperature zone 103. As for the specific setting of the fan, it can be set accordingly according to actual use needs and will not be described in detail here. Specific descriptions will be given below.

[0035] In some embodiments, the air supply mechanism includes a first fan 310 and a second fan 320. The first fan 310 is arranged on the left side of the inner cavity 101, and the second fan 320 is arranged on the right side of the inner cavity 101.

[0036] It can be understood that as Figure 2 、 Figure 3 and Figure 4 shown, the first fan 310 and the second fan 320 are respectively arranged on the left and right sides of the inner cavity 101. Through the fan settings on the left and right sides, it is beneficial to ensure the circulation of the air flow between the upper temperature zone 102 and the lower temperature zone 103, which is convenient for use. In actual application, in addition to the above setting method, the air supply mechanism can also separately set a fan in the upper temperature zone 102 or the lower temperature zone 103 for air supply, and can be changed accordingly according to actual use needs.

[0037] Furthermore, the first fan 310 is arranged on the left side of the upper temperature zone 102 and there is a spacing distance between the first fan 310 and the left wall of the inner cavity 101. The first fan 310 can blow air to the upper temperature zone 102.

[0038] It can be understood that in this embodiment, devices with higher heat dissipation requirements are arranged in the upper temperature zone 102, and devices with lower heat dissipation requirements are arranged in the lower temperature zone 103. As Figure 2 、Figure 3 and Figure 4 As shown in Figure 4 , when in use, the first blower 310 blows air to the upper temperature zone 102 to the right, so that the low-temperature air in the lower temperature zone 103 is blown from the left side of the lower temperature zone 103 into the left side of the upper temperature zone 102. When observed from the front view direction, the air flow circulates between the upper temperature zone 102 and the lower temperature zone 103 in a clockwise direction. Temperature-sensitive devices can be correspondingly arranged at the air outlet position of the first blower 310 to facilitate its heat dissipation and be convenient for use.

[0039] Of course, in actual application, the device arrangement in the upper temperature zone 102 and the lower temperature zone 103 is not fixed and can be adjusted accordingly according to actual usage needs. The installation position of the first blower 310 can also be changed accordingly.

[0040] Furthermore, the second blower 320 is arranged on the right side of the upper temperature zone 102 and has a spacing distance from the right wall of the inner cavity 101. The second blower 320 can extract air from the upper temperature zone 102.

[0041] It can be understood that, as shown in Figure 2 , Figure 3 and Figure 4 , when in use, the left side of the second blower 320 extracts air from the upper temperature zone 102, so that the high-temperature air in the upper temperature zone 102 is extracted and blown out from the right side of the upper temperature zone 102 to the right side of the lower temperature zone 103, which is beneficial to the circulation of the air flow. And such a design makes the air resistance occur at the turning of the right side wall, and the wind speed loss is transferred to the lower temperature zone 103, which is beneficial to ensuring the wind speed in the upper temperature zone 102 and the heat dissipation of the devices with higher heat dissipation requirements arranged in the upper temperature zone 102, and is convenient for use.

[0042] Furthermore, a plurality of second blowers 320 are provided and arranged at intervals in the front-rear direction. It can be understood that, as shown in Figure 2 , Figure 3 and Figure 4 , two second blowers 320 are provided, and the two second blowers 320 are arranged at intervals in the front-rear direction. By providing a plurality of second blowers 320, it is beneficial to increase the air extraction volume of the upper temperature zone 102 and the air supply volume of the lower temperature zone 103, thereby ensuring the overall air volume and reducing the possibility of forming a dead zone, and being convenient for use.

[0043] In some embodiments, baffles 120 are provided on the front side and / or the rear side of the partition plate 110, and the baffles 120 can correspondingly limit the air flow in the lower temperature zone 103 from entering the upper temperature zone 102 from the front side and / or the rear side.

[0044] It can be understood that, as shown in Figure 2 and Figure 4 ​​​​​​​​​​​​​​​As shown in the figure, a baffle 120 is provided on the front side of the partition plate 110. The baffle 120 is provided and located on the front side of the upper temperature zone 102, thereby restricting the air flow in the lower temperature zone 103 from entering the upper temperature zone 102 from the front side of the upper temperature zone 102, avoiding air flow short - circuit, and ensuring the effective circulation of the air flow between the upper temperature zone 102 and the lower temperature zone 103. In actual application, according to the setting of the partition plate 110, the baffle 120 can also be provided on the rear side of the partition plate 110, or baffles 120 are provided on both the front and rear sides, which can be changed accordingly according to actual use needs.

[0045] Further, a wire - passing hole 104 is provided on the baffle 120, and a deformable flap 121 is provided at the wire - passing hole 104. It can be understood that, as Figure 2 and Figure 4 shown, a wire - passing hole 104 for allowing a wire body to pass through is provided on the baffle 120 to meet the wiring requirements of some lines between the upper temperature zone 102 and the lower temperature zone 103; a plurality of deformable flaps 121 are provided at the wire - passing hole 104. When the wire body passes through the wire - passing hole 104, the flaps 121 deform and abut against the wire body to block the gap between the hole wall of the wire - passing hole 104 and the outer surface of the wire body, reducing the air ventilation volume at the wire - passing hole 104.

[0046] In actual application, the flap 121 can be a rubber sheet or a plastic soft sheet, etc., which has a certain elastic deformation ability to better adapt to the passing of different wire bodies. The specific structure and material of the flap 121 can be set accordingly according to actual use needs.

[0047] In some embodiments, a radiator 130 is provided on the lower side wall of the inner cavity 101, and heat - dissipating fins 131 are provided below the chassis housing 100 for the radiator 130. It can be understood that, as Figure 3 shown, a radiator 130 is provided on the lower side of the lower temperature zone 103. During use, the main heat of the lower temperature zone 103 can be transferred to the outside of the chassis housing 100 through the heat - dissipating fins 131 of the radiator 130, which is beneficial to help dissipate the heat in the inner cavity 101 of the chassis housing 100.

[0048] Further, a protective shell 140 is provided on the lower side of the chassis housing 100. The protective shell 140 covers the radiator 130 and defines an air cavity 105 between the protective shell 140 and the lower side of the chassis housing 100. An air vent 106 is provided on the protective shell 140, and the air cavity 105 can be communicated with the external atmosphere through the air vent 106.

[0049] It can be understood that, as Figure 1 and Figure 2As shown, the protective housing 140 is provided on the lower side of the chassis housing 100 and covers the radiator 130 to protect the radiator 130 from being directly exposed, so as to adapt to outdoor use; an air cavity 105 is formed between the protective housing 140 and the chassis housing 100, and an air vent 106 is provided on the protective housing 140, so that the air cavity 105 can communicate with the external atmosphere through the air vent 106 to realize heat dissipation to the external atmosphere and facilitate use. In actual application, the specific structure of the protective housing 140 can be set accordingly according to actual use requirements, and no limitation is made here.

[0050] The inverter according to the second aspect embodiment of the present invention includes the inverter heat dissipation structure according to the first aspect embodiment of the present invention above.

[0051] The inverter according to the embodiment of the present invention adopts the above-mentioned inverter heat dissipation structure, uses the temperature zone setting of upper and lower layers to adapt to the heat dissipation requirements of different devices, and uses the air supply mechanism to form an air flow in the inner cavity 101 and make the air flow circulate between the upper and lower temperature zones, so as to improve the heat dissipation efficiency of the inner cavity of the inverter and reduce the influence on the service life of related devices.

[0052] Since the other components of the inverter according to the embodiment of the present invention are known to those of ordinary skill in the art, they will not be described in detail here.

[0053] The embodiments of the present invention have been described in detail above with reference to the drawings, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. An inverter heat dissipation structure, characterized in that, Comprising: A chassis housing having an inner cavity with an upper opening, wherein a partition board is provided in the inner cavity, the partition board is horizontally arranged and divides an upper temperature zone and a lower temperature zone in the inner cavity; A chassis cover plate that covers the upper side of the chassis housing and can block the upper opening of the inner cavity; A air supply mechanism provided in the inner cavity, through which air can pass between the left sides of the upper temperature zone and the lower temperature zone and between the right sides of the upper temperature zone and the lower temperature zone, and the air supply mechanism can form an air flow in the inner cavity and make the air flow circulate between the upper temperature zone and the lower temperature zone.

2. The inverter heat dissipation structure according to claim 1, characterized in that, The air supply mechanism includes a first fan and a second fan, the first fan is provided on the left side of the inner cavity, and the second fan is provided on the right side of the inner cavity.

3. The inverter heat dissipation structure according to claim 2, characterized in that, The first fan is provided on the left side of the upper temperature zone and has a spacing distance from the left wall of the inner cavity, and the first fan can blow air into the upper temperature zone.

4. The inverter heat dissipation structure according to claim 2, characterized in that, The second fan is provided on the right side of the upper temperature zone and has a spacing distance from the right wall of the inner cavity, and the second fan can extract air from the upper temperature zone.

5. The inverter heat dissipation structure according to claim 4, characterized in that, There are a plurality of the second fans which are arranged at intervals in the front-rear direction.

6. The inverter heat dissipation structure according to claim 1, characterized in that, A baffle is provided on the front side and / or the rear side of the partition board, and the baffle can correspondingly restrict the air flow in the lower temperature zone from entering the upper temperature zone from the front side and / or the rear side.

7. The inverter heat dissipation structure according to claim 6, characterized in that, A wire passing hole is provided on the baffle, and a deformable flap is provided at the wire passing hole.

8. The inverter heat dissipation structure according to claim 1, wherein, A radiator is provided on the lower side wall of the inner cavity, and heat dissipation fins are provided below the chassis housing for the radiator.

9. The inverter heat dissipation structure according to claim 8, wherein, A protective housing is provided on the lower side of the chassis housing, the protective housing covers the radiator and defines an air cavity with the lower side of the chassis housing, and an air vent is provided on the protective housing, and the air cavity can communicate with the external atmosphere through the air vent.

10. An inverter, characterized in that, Including the inverter heat dissipation structure according to any one of claims 1 to 9.

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