Inverter housing

Abstract

The embodiment of the utility model provides an inverter housing, and relates to the technical field of inverters. The inverter shell comprises a front shell body, the outer side of the front shell body is provided with heat dissipation fins which are arranged in an inclined mode, when the inverter shell is arranged upright, the heat dissipation fins are inclined downwards, and when the inverter shell is used, the heat dissipation fins are inclined downwards, so that external dust can fall out of the heat dissipation fins when falling onto the heat dissipation fins, and the heat dissipation efficiency of the inverter shell is improved. Therefore, dust is not easy to accumulate on the heat dissipation fins, and the inverter provided with the inverter shell provided by the embodiment of the utility model can be ensured to have a good heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of inverters, and in particular to an inverter housing. Background Art

[0002] Micro inverter is a power electronic conversion device used in solar photovoltaic power generation system. It realizes the conversion from direct current to alternating current and is one of the core components in photovoltaic power station.

[0003] The inventors have found that the shells of most micro inverters are currently made of die-cast aluminum alloy. In order to improve the heat dissipation effect of the inverter, heat dissipation fins are provided on the inverter shell. Dust is easily accumulated on the heat dissipation fins, resulting in poor heat dissipation effect. Utility Model Content

[0004] The utility model aims to provide an inverter housing, which can reduce dust accumulation on heat dissipation fins, thereby ensuring the heat dissipation effect of the inverter.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In a first aspect, the utility model provides an inverter housing, comprising:

[0007] A front housing, the outer side of which is provided with obliquely arranged heat dissipation fins;

[0008] When the inverter housing is placed upright, the heat dissipation fins are tilted downward.

[0009] In an optional embodiment, the outer side of the front shell has a mounting surface, and when the inverter housing is upright, the mounting surface is arranged vertically downward, and the angle formed by the mounting surface and the heat dissipation fins is in the range of 40 to 50 degrees.

[0010] In an optional embodiment, the front shell includes a first end plate and a front plate arranged in sequence, and a cooling fin is arranged on one side of the front plate. When the inverter housing is placed upright, the first end plate is located on the upper side of the front plate, the first end plate is arranged tilted downward, and an end of the first end plate away from the front plate is located on the side of the front plate away from the cooling fin.

[0011] In an optional embodiment, the angle formed between the first end plate and the preset plane in the direction close to the front plate is in the range of 3 to 7 degrees, and when the inverter housing is upright, the preset plane is parallel to the horizontal plane.

[0012] In an optional embodiment, the front plate includes a first plate segment and a second plate segment connected in sequence at an angle, one end of the first plate segment away from the second plate segment is connected to the first end plate, one side of the second plate segment is provided with a cooling fin, and the end of the first plate segment away from the second plate segment is located on the side of the second plate segment away from the cooling fin.

[0013] In an optional embodiment, the front plate further includes a third plate segment, which is connected to the end of the second plate segment away from the first plate segment at an angle, and the end of the third plate segment away from the second plate segment is located on a side of the second plate segment away from the heat dissipation fins.

[0014] In an optional implementation, an end of the first plate segment close to the second plate segment, an end of the third plate segment close to the second plate segment, and an end of the heat dissipation fin away from the second plate segment are coplanar.

[0015] In an optional embodiment, the front shell includes a first end plate, a front plate and a second end plate connected at an angle in sequence, the first end plate, the front plate and the second end plate jointly define an installation chamber, a first installation portion is provided on a side of the first end plate close to the second end plate, a second installation portion is provided on a side of the second end plate close to the first end plate, the first installation portion and the second installation portion are used for connecting to a PCB board, and a heat dissipation fin is provided on a side of the front plate away from the installation chamber.

[0016] In an optional embodiment, the first mounting portion and the second mounting portion are position-limiting slide grooves, and the position-limiting slide grooves are used for allowing the PCB board to slide in.

[0017] In an optional embodiment, a heat-conducting strip is provided on the inner side of the front plate located in the installation cavity, and the heat-conducting strip is used to abut against the PCB board.

[0018] In an optional embodiment, the inverter housing further includes a first side cover, a second side cover and a rear cover plate, and the first side cover, the second side cover, the rear cover plate and the front housing together define an installation space;

[0019] The first side cover and the second side cover are detachably connected to the two sides of the front shell, respectively, and / or the rear cover is detachably connected to the first side cover, the second side cover and the front shell.

[0020] The beneficial effects of the embodiments of the utility model are as follows: an inverter housing provided by the embodiments of the utility model includes a front shell, and the outer side of the front shell is provided with inclined cooling fins. When the inverter housing is upright, the cooling fins are inclined downward. Since the cooling fins are inclined downward when the inverter housing is in use, when external dust falls on the cooling fins, the dust can fall out of the cooling fins, so that the dust is not easy to accumulate on the cooling fins, thereby ensuring that the inverter equipped with the inverter housing provided by this embodiment has a good heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the structure of an inverter provided in an embodiment of the utility model;

[0023] Figure 2 An exploded schematic diagram of an inverter provided in an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of the structure of the front housing of the inverter provided by an embodiment of the utility model at a first viewing angle;

[0025] Figure 4 A schematic diagram of the structure of the front housing of the inverter provided by an embodiment of the utility model at a second viewing angle;

[0026] Figure 5 for Figure 4 A partial enlarged view of

[0027] Figure 6 A schematic diagram of the structure of the PCB board and the front housing during assembly provided by an embodiment of the utility model;

[0028] Figure 7 This is a partial schematic diagram of a PCB board provided in an embodiment of the utility model being installed in a front housing.

[0029] Icons: 1-inverter; 100-inverter housing; 110-front housing; 1100-first end plate; 1110-first mounting portion; 1200-second end plate; 1210-second mounting portion; 1300-front plate; 1310-first plate section; 1320-second plate section; 1321-mounting surface; 1330-third plate section; 1340-thermal conductive strip; 140-heat dissipation fin; 1500-mounting chamber; 101-preset plane; 150-first side cover; 160-second side cover; 170-rear cover; 200-antenna; 300-photovoltaic connector; 400-PCB board. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The specific structure of an inverter housing provided by an embodiment of the utility model and the corresponding technical effects brought about by it are described in detail below in conjunction with the patent drawings.

[0037] Please refer to Figure 1-Figure 5 An inverter 1 provided by an embodiment of the utility model includes an inverter housing 100 , and the inverter housing 100 is used to assemble various functional components of the inverter 1 , such as a PCB assembly, an antenna 200 and a photovoltaic connector 300 .

[0038] The inverter housing 100 includes a front housing 110, a first side cover 150, a second side cover 160 and a rear cover plate 170. The first side cover 150, the second side cover 160, the rear cover plate 170 and the front housing 110 define an installation space together. The installation space is used to install a PCB assembly. The PCB assembly includes a PCB board 400 and components installed on the PCB board 400. The first side cover 150 and the second side cover 160 are both provided with a photovoltaic connector 300.

[0039] To facilitate user disassembly and assembly, the first side cover 150 and the second side cover 160 are detachably connected to both sides of the front housing 110 , respectively, and the rear cover 170 is detachably connected to the first side cover 150 , the second side cover 160 and the front housing 110 .

[0040] Optionally, the first side cover 150 and the second side cover 160 may be detachably connected to the front housing 110 via threaded fasteners, and the rear cover plate 170 may also be detachably connected to the first side cover 150 , the second side cover 160 and the front housing 110 via threaded fasteners.

[0041] Of course, in some other embodiments, the first side cover 150 and the second side cover 160 may also be respectively snap-connected with the two sides of the front shell 110 . Similarly, the rear cover 170 may also be snap-connected with the first side cover 150 , the second side cover 160 and the front shell 110 .

[0042] Among them, the outer side of the front shell 110 is provided with an inclined heat dissipation fin 140. In the present embodiment, there are multiple heat dissipation fins 140, and the multiple heat dissipation fins 140 are arranged at intervals along the extension direction of the front shell 110. It should be noted that when the inverter housing 100 is placed upright, the heat dissipation fins 140 are inclined downward.

[0043] It can be understood that the inverter housing 100 is upright, which can be understood as the normal assembly posture of the inverter housing 100 during use. Figure 1 For reference, the inverter housing is in the upright position at this time.

[0044] Since the heat dissipation fins 140 are tilted downward when the inverter housing 100 is in use, when external dust falls on the heat dissipation fins 140, the dust can fall out of the heat dissipation fins 140, so that the dust is not easy to accumulate on the heat dissipation fins 140. Therefore, the inverter 1 with the inverter housing 100 can have a better heat dissipation effect during use.

[0045] Optionally, the outer side of the front housing 110 has a mounting surface 1321 , and when the inverter housing 100 is upright, the mounting surface 1321 is vertically arranged downward, and an angle formed by the mounting surface 1321 and the heat dissipation fins 140 is in the range of 40 to 50 degrees.

[0046] In this embodiment, the angle formed between the mounting surface 1321 and the heat dissipation fins 140 is 45°. That is, when the inverter housing 100 is upright, the downward inclination angle of the heat dissipation fins 140 forms an angle of 45° with the vertical downward direction.

[0047] Of course, in some other embodiments, the angle between the heat dissipating fin 140 and the mounting surface 1321 may also be other angles, such as 40°, 42°, 44°, 46°, 48° or 50°.

[0048] Optionally, the front shell 110 includes a first end plate 1100, a front plate 1300 and a second end plate 1200 which are connected at an angle in sequence, and the first end plate 1100, the front plate 1300 and the second end plate 1200 jointly define an installation chamber 1500, and a heat dissipation fin 140 is provided on the side of the front plate 1300 away from the installation chamber 1500.

[0049] A heat dissipation fin 140 is provided on one side of the front plate 1300, that is, a heat dissipation fin 140 is provided on the side of the front plate 1300 away from the installation chamber 1500. When the inverter 1 is placed upright, the first end plate 1100 is located on the upper side of the front plate 1300, the first end plate 1100 is tilted downward, and one end of the first end plate 1100 away from the front plate 1300 is located on the lower side of the front plate 1300 away from the heat dissipation fin 140.

[0050] In other words, the first end plate 1100 is not set in a horizontal plane when it is upright, but is set at an angle downward. Therefore, when external dust or water falls on the first end plate 1100, the dust or water is not easy to accumulate on the first end plate 1100, and the dust and water will fall downward along the extension direction of the first end plate 1100.

[0051] The angle formed between the first end plate 1100 and the preset plane 101 in the direction close to the front plate 1300 is in the range of 3 to 7 degrees. When the housing of the inverter 1 is placed upright, the preset plane 101 is parallel to the horizontal plane.

[0052] Optionally, refer to Figure 4-Figure 5 In this embodiment, the angle formed between the first end plate 1100 and the preset plane 101 in the direction close to the front plate 1300 is 5°.

[0053] Of course, in some other optional embodiments, the angle formed between the first end plate 1100 and the preset plane 101 in the direction close to the front plate 1300 can also be 3°, 4°, 6° or 7°.

[0054] In some embodiments, when the inverter housing 100 is placed upright, the first end plate 1100 may also be arranged horizontally.

[0055] In detail, the front plate 1300 includes a first plate segment 1310, a second plate segment 1320 and a third plate segment 1330 which are connected at an angle in sequence, an end of the first plate segment 1310 away from the second plate segment 1320 is connected to the first end plate 1100, a heat dissipation fin 140 is provided on one side of the second plate segment 1320, an end of the first plate segment 1310 away from the second plate segment 1320 is located on the side of the second plate segment 1320 away from the heat dissipation fin 140, and an end of the third plate segment 1330 away from the second plate segment 1320 is also located on the side of the second plate segment 1320 away from the heat dissipation fin 140.

[0056] In detail, in this embodiment, the installation surface 1321 is the appearance surface of the second plate segment 1320 .

[0057] When the inverter housing 100 is upright, the first plate segment 1310 is tilted downward, and the third plate segment 1330 is also tilted downward. In other words, the first plate segment 1310 and the third plate segment 1330 are tilted toward the inside of the installation chamber 1500 relative to the second plate segment 1320. It can be understood that through the above arrangement, dust and water can be prevented from being on the first plate segment 1310 and the third plate segment 1330.

[0058] Of course, in some other embodiments, the front plate 1300 only includes a first plate segment 1310 and a second plate segment 1320 connected in sequence, and the end of the second plate segment 1320 away from the first plate segment 1310 is connected to the second end plate 1200, or, the front plate 1300 only includes a second plate segment 1320 and a third plate segment 1330 connected in sequence, and the end of the second plate segment 1320 away from the third plate segment 1330 is directly connected to the first end plate 1100, and the end of the third plate segment 1330 away from the second plate segment 1320 is connected to the second end plate 1200.

[0059] Optionally, one end of the first plate segment 1310 close to the second plate segment 1320, one end of the third plate segment 1330 close to the second plate segment 1320, and one end of the heat sink 140 away from the second plate segment 1320 are coplanar, thereby ensuring the length of the heat sink 140 and improving the heat dissipation effect of the heat sink 140. It is also possible to prevent debris dropped from the first plate segment 1310 from falling onto the heat sink 140, and it is also possible to prevent external impurities from accumulating between the heat sink 140 and the third plate segment 1330 so that they can slide off the third plate segment 1330 in time.

[0060] Of course, in some other embodiments, heat dissipation fins 140 may be disposed on the first plate segment 1310 , the second plate segment 1320 , and the third plate segment 1330 .

[0061] It should be noted that, in order to ensure the strength of the front plate 1300 , the front plate 1300 is an integrated structure.

[0062] Alternatively, in some other embodiments, the appearance surface of the front plate 1300 is a plane, that is, when the inverter housing 100 is placed upright, the appearance surface of the front plate 1300 is a vertical plane.

[0063] A first mounting portion 1110 is provided on a side of the first end plate 1100 close to the second end plate 1200, and a second mounting portion 1210 is provided on a side of the second end plate 1200 close to the first end plate 1100. The first mounting portion 1110 and the second mounting portion 1210 are used to connect with the PCB board 400, that is, both sides of the PCB board 400 are respectively connected to the first mounting portion 1110 and the second mounting portion 1210, so that the PCB board 400 is assembled in the installation chamber 1500.

[0064] Please refer to Figure 6-Figure 7 Optionally, in this embodiment, the first mounting portion 1110 and the second mounting portion 1210 are position limiting slides, and the position limiting slides are used for the PCB board 400 to slide in, that is, when the PCB board 400 is installed, both sides of the PCB board 400 can slide in from one end of the position limiting slides on the first end plate 1100 and the second end plate 1200, so as to be installed in the installation chamber 1500. It can be understood that the use of screws when installing the PCB board 400 can be reduced through the position limiting slides.

[0065] Of course, in some other embodiments, the first mounting portion 1110 and the second mounting portion 1210 may be clamping portions to clamp with two sides of the PCB board 400 so that the PCB board 400 is fixedly assembled.

[0066] Optionally, in order to increase the heat dissipation effect of the inverter housing 100, the front panel 1300 is located on the inner side of the installation chamber 1500, and the thermal conductive strip 1340 is used to abut against the PCB board 400, so that the heat emitted by the components on the PCB board 400 can be transferred through the thermal conductive strip 1340 to achieve heat dissipation of the PCB board 400.

[0067] In summary, an inverter housing 100 provided in an embodiment of the utility model includes a front shell 110, and an outer side of the front shell 110 is provided with an inclined heat dissipation fin 140. When the inverter housing 100 is placed upright, the heat dissipation fin 140 is inclined downward. Since the heat dissipation fin 140 is inclined downward when the inverter housing 100 is in use, when external dust falls on the heat dissipation fin 140, the dust can fall out of the heat dissipation fin 140, so that the dust is not easy to accumulate on the heat dissipation fin 140, thereby ensuring that the inverter 1 equipped with the inverter housing 100 provided in this embodiment has a good heat dissipation effect.

[0068] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An inverter housing, characterized in that: include: A front housing (110), wherein an outer side of the front housing (110) is provided with obliquely arranged heat dissipation fins (140); When the inverter housing is upright, the heat dissipation fins (140) are inclined downward.

2. The inverter housing according to claim 1, characterized in that: The outer side of the front housing (110) has a mounting surface (1321); when the inverter housing is placed upright, the mounting surface (1321) is arranged vertically downward, and the angle formed by the mounting surface (1321) and the heat dissipation fins (140) is in the range of 40 to 50 degrees.

3. The inverter housing according to claim 1, characterized in that: The front shell (110) includes a first end plate (1100) and a front plate (1300) which are arranged in sequence, and the heat dissipation fins (140) are arranged on one side of the front plate (1300). When the inverter housing is upright, the first end plate (1100) is located on the upper side of the front plate (1300), and the first end plate (1100) is arranged to be inclined downward, and an end of the first end plate (1100) away from the front plate (1300) is located on a side of the front plate (1300) away from the heat dissipation fins (140).

4. The inverter housing according to claim 3, characterized in that: The angle formed between the first end plate (1100) and the preset plane (101) in the direction close to the front plate (1300) is in the range of 3 to 7 degrees, and when the inverter (1) housing is placed upright, the preset plane (101) is parallel to the horizontal plane.

5. The inverter housing according to claim 3, characterized in that: The front plate (1300) comprises a first plate segment (1310) and a second plate segment (1320) which are connected in sequence at an angle, wherein one end of the first plate segment (1310) away from the second plate segment (1320) is connected to the first end plate (1100), one side of the second plate segment (1320) is provided with the heat dissipation fin (140), and one end of the first plate segment (1310) away from the second plate segment (1320) is located on a side of the second plate segment (1320) away from the heat dissipation fin (140).

6. The inverter housing according to claim 5, characterized in that: The front plate (1300) further comprises a third plate segment (1330), wherein the third plate segment (1330) is connected at an angle to an end of the second plate segment (1320) away from the first plate segment (1310), and an end of the third plate segment (1330) away from the second plate segment (1320) is located on a side of the second plate segment (1320) away from the heat dissipation fins (140).

7. The inverter housing according to claim 6, characterized in that: An end of the first plate segment (1310) close to the second plate segment (1320), an end of the third plate segment (1330) close to the second plate segment (1320), and an end of the heat dissipation fin (140) away from the second plate segment (1320) are coplanar.

8. The inverter housing according to claim 1, characterized in that: The front shell (110) includes a first end plate (1100), a front plate (1300) and a second end plate (1200) which are connected in sequence at an angle, the first end plate (1100), the front plate (1300) and the second end plate (1200) jointly define an installation chamber (1500), a first installation portion (1110) is provided on a side of the first end plate (1100) close to the second end plate (1200), a second installation portion (1210) is provided on a side of the second end plate (1200) close to the first end plate (1100), the first installation portion (1110) and the second installation portion (1210) are used for connecting to a PCB board (400), and the heat dissipation fins (140) are provided on a side of the front plate (1300) away from the installation chamber (1500).

9. The inverter housing according to claim 8, characterized in that: The first mounting portion (1110) and the second mounting portion (1210) are position-limiting slide grooves, and the position-limiting slide grooves are used for the PCB board (400) to slide in.

10. The inverter housing according to claim 8, characterized in that: A heat-conducting strip (1340) is provided on the inner side of the front plate (1300) located in the installation chamber (1500), and the heat-conducting strip (1340) is used to abut against the PCB board (400).

11. The inverter housing according to claim 1, characterized in that: The inverter housing further comprises a first side cover (150), a second side cover (160) and a rear cover plate (170), wherein the first side cover (150), the second side cover (160), the rear cover plate (170) and the front housing (110) jointly define an installation space; The first side cover (150) and the second side cover (160) are respectively detachably connected to two sides of the front shell (110), and / or the rear cover (170) is detachably connected to the first side cover (150), the second side cover (160) and the front shell (110).

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