Inductor box and inverter

Abstract

The utility model discloses an inductor box and an inverter, relates to the technical field of photovoltaic inverters, and aims to solve the problem that the utilization rate of the existing inductor box is not high. The inductor box comprises an inductor box body, an accommodating cavity used for accommodating an inductor is arranged in the inductor box body, and first radiating fins are respectively arranged in the accommodating cavity; the first cooling fins on the same side of the inductor box body are arranged in a crossed mode, the second cooling fins are arranged at the bottom of the inductor box body, the second cooling fins are provided with installation columns, threaded holes are formed in the installation columns, the air channel plate is arranged at the bottom of the inductor box body, and the air channel plate is connected with the installation columns through screws. And meanwhile, the heat dissipation effect of the inductor box is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic inverter technical field more specifically, relate to a kind of inductance box and inverter. BACKGROUND

[0002] Inductance is one of important components of switching power supply and power conversion equipment, inductance is usually placed in inductance box, inductance box bears the role of placing inductance, and helping inductance heat dissipation, and enabling inductance to work normally. At present, the configuration mode of inductance box mainly has two kinds, one of which is independent inductance box, i.e. one inductance box only puts one inductance, and the heat dissipation effect of this mode is good, but the overall space is relatively large, and the cost is relatively high. The other is integrated inductance box, i.e. multiple power inductors are placed in one inductance box, and the overall size of the inductance box is relatively small, and the cost is relatively low, but the heat of power inductors will affect each other, and the heat dissipation effect is poor.

[0003] The existing inductance box is usually spliced by sheet metal or formed by aluminum die casting, which has the following defects: the inductance box of die casting structure is integrally formed, and has good sealing property, but the connection between the inductance box and the equipment is generally installed by threaded fasteners, especially the split inductance box, because the volume of the single inductance box increases, the number of fasteners also increases accordingly, and the disassembly and assembly process is relatively complicated. In addition, a lot of dust will fall on the inductance box after long-term use, which will increase the disassembly and assembly difficulty, and the complicated disassembly and assembly process will increase the probability of dust falling into the equipment, which may affect the normal operation of the equipment circuit. The patent with application number 202211717327.1 discloses an inductance box, which can be quickly disassembled without the aid of tools, and has good protection and sealing performance, but the inductance box of the scheme only has the function of supporting and placing inductance, and the utilization rate is not high.

[0004] Therefore, how to solve the problem of low utilization rate of the existing inductance box is a problem that needs to be solved by the technical personnel in the field at present. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims to provide an inductance box to improve the utilization rate of the inductance box and improve the heat dissipation effect of the inductance box.

[0006] Another object of the utility model is to provide an inverter comprising the above-mentioned inductance box, which can improve the heat dissipation effect of the inverter.

[0007] In order to achieve the above-mentioned object, the utility model provides the following technical scheme:

[0008] An inductance box comprises:

[0009] An inductance box body is provided with a containing cavity for containing inductance.

[0010] The first heat dissipation fins are arranged on both sides of the inductor box body, and the first heat dissipation fins on the same side of the inductor box body are arranged in a cross manner.

[0011] The second heat dissipation fins are arranged on the bottom of the inductor box body, and the mounting columns are arranged on the second heat dissipation fins.

[0012] The air duct plate is arranged on the bottom of the inductor box body and is connected with the mounting columns through screws.

[0013] Preferably, the second heat dissipation fins are further provided with connecting columns, the connecting columns are provided with threaded holes, the air duct plate is provided with corresponding threaded holes, and the back hanging strips are connected with the connecting columns through screws.

[0014] Preferably, the inductor box body is provided with a limiting structure, and the air duct plate is provided with a limiting slot that is clamped with the limiting structure.

[0015] Preferably, the air duct plate comprises a bottom plate, a first side plate and a second side plate, the first side plate and the second side plate are both arranged perpendicularly on the bottom plate, and the first side plate and the second side plate are perpendicular to each other.

[0016] Preferably, the mounting surface of the inductor box body is provided with a limiting column.

[0017] Preferably, the mounting surface is provided with a sealing groove for mounting a sealing strip, and the sealing groove is arranged around the outer periphery of the accommodating cavity.

[0018] Preferably, the sealing groove comprises a first groove body and a second groove body, the first groove body is arranged along the outer edge of the mounting surface, the first groove body is a ring groove, the second groove body is in communication with the first groove body, the second groove body is a lap joint groove at both ends of the sealing strip, the second groove body is arranged on the inner side of the first groove body, and the second groove body is connected with the first groove body through a wedge-shaped surface.

[0019] Preferably, the first heat dissipation fins extend in a direction perpendicular to the side plate of the inductor box body, the first heat dissipation fins are arranged at equal intervals along the extension direction of the side plate of the inductor box body, and a plurality of first heat dissipation fins arranged along the height direction of the inductor box body are arranged in a cross manner.

[0020] Preferably, a plurality of clamping grooves for mounting inductors are arranged in the accommodating cavity, a partition plate is arranged between some of the clamping grooves, the height of the partition plate in the height direction of the inductor box body is less than the diameter of the inductor, and heat-conducting silica gel is arranged in the accommodating cavity.

[0021] An inverter comprises the inductor box according to any one of the above.

[0022] The inductance box provided by the utility model discloses an inductance box body, first radiating fins, second radiating fins and an air duct plate, specifically, the inductance box body is internally provided with an accommodating cavity for accommodating inductance, the inductance is placed in the accommodating cavity, so that the inductance box body has the function of placing and supporting the inductance, the inductance box body is provided with the first radiating fins on both sides, and the first radiating fins on the same side of the inductance box body are cross arranged, when air passes through the first radiating fins, the air can cross flow between the radiating fins, the effect of turbulent flow is achieved, so that the inductance is better radiated, the radiating effect of the inductance box body is improved, the second radiating fins are arranged at the bottom of the inductance box body, the inductance is radiated through the second radiating fins, so that the radiating effect of the inductance box body is further improved, the mounting column is arranged on the second radiating fins, the threaded hole is arranged in the mounting column, the air duct plate is arranged at the bottom of the inductance box body and connected with the mounting column through the screw, the mounting column for connecting the air duct plate is arranged on the second radiating fins, the air duct plate is supported, so that the utilization rate of the inductance box body is improved.

[0023] The inductance box arranged in the above manner can not only be used for placing and supporting the inductance, but also can provide support and mounting basis for mounting the air duct plate or other structures, so that the utilization rate of the inductance box body is improved, and the radiating effect on the inductance is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only the embodiments of the utility model, and other drawings can be obtained by the provided drawings without creative labor for the ordinary skilled in the art.

[0025] Figure 1 The structural schematic diagram of the inductance box provided by the utility model;

[0026] Figure 2 The structural schematic diagram of the inductance box provided by the utility model; Figure 1 The structural schematic diagram of another view;

[0027] Figure 3 The structural schematic diagram of the inductance box provided by the utility model after glue filling;

[0028] Figure 4 The installation schematic diagram of the inductance box provided by the utility model;

[0029] Figure 5 The structural schematic diagram of the internal space of the inductance box provided by the utility model.

[0030] MARKS:

[0031] 100-boost inductance, 200-inverter inductance

[0032] 1-inductance box body, 101-receiving cavity, 102-separator

[0033] 2-first heat dissipation fin

[0034] 3-second heat dissipation fin

[0035] 4-mounting column

[0036] 5-air duct plate

[0037] 6-thermally conductive silica gel

[0038] 7-connection column

[0039] 8-back hanging strip

[0040] 9-limiting structure

[0041] 10-limiting column

[0042] 11-sealing strip

[0043] 12-sealing groove, 121-first groove body, 122-second groove body DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0045] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0046] The core of the present application is to provide an inductance box to improve the utilization rate of the inductance box and improve the heat dissipation effect of the inductance box. Another core of the present application is to provide an inverter comprising the above inductance box, which can improve the heat dissipation effect of the inverter.

[0047] Please refer to Figure 1 and Figure 2The inductance box comprises an inductance box body 1, first heat dissipation fins 2, second heat dissipation fins 3 and an air duct plate 5.

[0048] Specifically, the inductance box body 1 is internally provided with a containing cavity 101 for containing an inductance, the inductance is placed in the containing cavity 101, so that the inductance box body 1 has the function of placing and supporting the inductance, the first heat dissipation fins 2 are arranged on both sides of the inductance box body 1, and the first heat dissipation fins 2 on the same side of the inductance box body 1 are arranged in a cross manner, when air passes through the first heat dissipation fins 2, the air can pass through between the fins in a cross manner, so as to achieve the effect of turbulent flow, thereby better dissipating heat of the inductance and improving the heat dissipation effect of the inductance box body 1, the second heat dissipation fins 3 are arranged on the bottom of the inductance box body 1, the second heat dissipation fins 3 are arranged to dissipate heat of the inductance, so as to further improve the heat dissipation effect of the inductance box body 1, the mounting columns 4 are arranged on the second heat dissipation fins 3, the mounting columns 4 are internally provided with threaded holes, the air duct plate 5 is arranged on the bottom of the inductance box body 1 and connected with the mounting columns 4 through screws, the mounting columns 4 arranged on the second heat dissipation fins 3 are used to connect the air duct plate 5, so as to provide support for mounting the air duct plate 5, thereby improving the utilization rate of the inductance box body 1.

[0049] The inductance box arranged in the above manner can not only be used to place and support the inductance, but also can provide support and mounting basis for mounting the air duct plate 5 or other structures, so as to improve the utilization rate of the inductance box body 1 and improve the heat dissipation effect of the inductance.

[0050] Please refer to Figure 2 and Figure 4 , the second heat dissipation fins 3 are further provided with the connecting columns 7, the connecting columns 7 are internally provided with threaded holes, the air duct plate 5 is provided with corresponding threaded holes, and the back hanging strips 8 are connected with the connecting columns 7 through screws.

[0051] It can be understood that the first heat dissipation fins 2 are provided with the mounting columns 4 and the connecting columns 7 at the ends away from the inductance box body 1, the connecting columns 7 are located between the mounting columns 4, the mounting columns 4 are used to mount the air duct plate 5 on the inductance box body 1, the air duct plate 5 is provided with threaded holes at positions corresponding to the connecting columns 7, and the back hanging strips 8 are mounted on the air duct plate 5 through screws in sequence passing through the threaded holes of the air duct plate 5 and the connecting columns 7. Among them, the mounting columns 4 are used as load-bearing components to fix the back hanging strips 8, so as to hang the whole machine on the mounting wall.

[0052] Further, the inductance box body 1 is provided with the limiting structure 9, and the air duct plate 5 is provided with the limiting slot opening for clamping the limiting structure 9.

[0053] It should be noted that when the air duct plate 5 is mounted, the limiting structure 9 and the limiting slot opening are clamped to achieve effective positioning of the air duct plate 5, thereby improving the assembly efficiency of the air duct plate 5.

[0054] In the working process of the inverter, a large amount of heat is generated. If the heat is not dissipated in time, the inverter will overheat, which will affect the normal operation of the inverter and even damage the inverter. The design of the air duct plate 5 can help air circulation and enhance the heat dissipation effect, so as to ensure that the inverter operates at an appropriate temperature.

[0055] In the above embodiment, the air duct plate 5 includes a bottom plate, a first side plate and a second side plate, the first side plate and the second side plate are both vertically arranged on the bottom plate, and the first side plate and the second side plate are perpendicular to each other.

[0056] It can be understood that by arranging the mounting column 4 on the first heat dissipation fin 2, since the inductor box body 1 is fixed to the bottom of the inverter box body in the XY direction, when the air duct plate 5 is installed, it is only necessary to fix and install the air duct plate 5 and the inductor box body 1 in the Z direction by screws on the mounting column 4, without the need to fix the air duct plate 5 to the bottom of the inverter box body.

[0057] Among them, the first side plate and the second side plate are directly adjacent to the two sides of the inductor box body 1 to achieve preliminary positioning, and then the limiting structure 9 of the inductor box body 1 and the limiting slot of the air duct plate 5 are connected to achieve effective positioning of the air duct plate 5. Finally, the air duct plate 5 is fixed to the mounting column 4 by screws, which can realize the rapid installation of the air duct plate 5, and then the back hanging strip 8 is installed on the air duct plate 5, thereby improving the assembly efficiency.

[0058] On the basis of the above embodiment, the mounting surface of the inductor box body 1 is provided with a limiting column 10.

[0059] It should be noted that the mounting surface of the inductor box body 1 is provided with two limiting columns 10, which can quickly position the inductor box assembly, and the inductor box assembly is fixed to the inverter box body by the screw holes and screws on the mounting surface.

[0060] In the above embodiment, the mounting surface is provided with a sealing groove 12 for installing a sealing strip 11, and the sealing groove 12 is arranged around the outer periphery of the accommodating cavity 101.

[0061] It can be understood that by arranging the sealing groove 12 and the sealing strip 11, the inductor box body 1 and the inverter box body can be sealed, thereby sealing the accommodating cavity 101.

[0062] Please refer to Figure 5 , the sealing groove 12 includes a first groove body 121 and a second groove body 121, the first groove body 121 is arranged along the outer edge of the mounting surface, the first groove body 121 is a ring groove, and the second groove body 121 is a lap joint groove at both ends of the sealing strip 11, the second groove body 121 is arranged on the inner side of the first groove body 121, and the second groove body 121 and the first groove body 121 are connected by a wedge surface.

[0063] It should be noted that the inductance box body 1 and the inverter box body installation side is provided with a sealing groove 12 for accommodating the sealing strip 11, the sealing groove 12 has a first groove body 121 and a second groove body 121, the first groove body 121 is used for accommodating the sealing strip 11, the second groove body 121 is used for accommodating the lap of the two ends of the sealing strip 11, by setting the sealing groove 12 into the first groove body 121 and the second groove body 121, any length of sealing strip 11 can be selected for installation, the sealing strip 11 of this structure can also be applied to other occasions needing sealing, and can be used as a general material, as long as the lap of the sealing strip 11 uses the second groove body 121.

[0064] In the above case, the first heat dissipation fin 2 extends in the direction perpendicular to the side plate of the inductance box body 1, and the first heat dissipation fin 2 is arranged at equal intervals along the extension direction of the side plate of the inductance box body 1, and the plurality of first heat dissipation fins 2 arranged along the height direction of the inductance box body 1 are arranged in a cross manner.

[0065] It can be understood that by arranging the first heat dissipation fin 2 in a cross structure, when the wind passes through the first heat dissipation fin 2, it can cross through between the fins to achieve a turbulent flow effect, thereby better dissipating heat from the boost inductor 100 and the inverter inductor 200.

[0066] Please refer to Figure 3 , a plurality of clamping grooves for mounting inductors are arranged in the accommodating cavity 101, and a partition plate 102 is arranged between some of the clamping grooves, the height of the partition plate 102 in the height direction of the inductance box body 1 is less than the diameter of the inductor, and heat-conducting silicone 6 is also arranged in the accommodating cavity 101.

[0067] It should be noted that the boost inductor 100 and the inverter inductor 200 are mounted in the inductance box body 1 and are filled with heat-conducting silicone 6, and the plane of the heat-conducting silicone 6 is reserved with a height of about 3mm from the mounting surface of the inductance box body 1 to prevent the thermal expansion and contraction of the heat-conducting silicone 6 from causing deformation of the bottom of the box body. In actual application, the height reserved between the plane of the heat-conducting silicone 6 and the mounting surface of the inductance box body 1 is not limited, as long as the above technical effects can be achieved.

[0068] The inductance box body 1 is fixedly installed on the bottom of the inverter box body by screws; wherein, the inductance box body 1 is internally provided with a boost inductor 100 accommodating cavity 101 and an inverter inductor 200 accommodating cavity 101, respectively used for accommodating the boost inductor 100 and the inverter inductor 200; the inverter inductor 200 generates a lot of heat, and a partition plate 102 is arranged between adjacent inverter inductor 200 accommodating cavities 101, the height of the partition plate 102 in the height direction of the inductance box body 1 is not more than the height of the arc structure of the inverter inductor 200, so as not to affect the inductor performance, and also to effectively prevent the heat from spreading in the cavity of the inductance box body 1 through the heat-conducting silicone 6, affecting the overall temperature rise effect.

[0069] In conclusion, the inductance box provided by the utility model mainly fixes the inductance and assists heat dissipation, achieves the purpose of one object with multiple uses, is convenient to assemble, can improve heat dissipation efficiency, saves installation components, thereby reduces cost, realizes the effects of accurate positioning and convenient installation and disassembly, and improves the overall heat dissipation effect of the inductance box through optimization of the internal and external structures of the inductance box.

[0070] In addition to the inductance box disclosed in each of the above embodiments, the utility model also provides an inverter comprising the inductance box, and the structures of other parts of the inverter refer to the prior art, and will not be described herein.

[0071] It should be noted that in the present specification, the relationship terms such as first and second are only used to distinguish one entity from another, and do not necessarily require or imply any such actual relationship or order between the entities.

[0072] The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other.

[0073] The inductance box and the inverter provided by the utility model are described in detail above. The principle and implementation mode of the utility model are described by applying specific examples in the present specification, and the description of the above embodiments is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. An inductance box, characterized by, The utility model relates to an inductor box, including: An inductor box body (1) is equipped with a containing cavity (101) for containing inductor in the inductor box body (1); First heat dissipation fin (2), the both sides of inductor box body (1) are equipped with first heat dissipation fin (2) respectively, and the first heat dissipation fin (2) of inductor box body (1) same side is cross arrangement; Second heat dissipation fin (3), be equipped with in the bottom of inductor box body (1), second heat dissipation fin (3) are equipped with mounting post (4) on, mounting post (4) are equipped with screw hole in; Air duct board (5), be equipped with in the bottom of inductor box body (1), air duct board (5) are connected with mounting post (4) through screw.

2. The inductance box according to claim 1, characterized in that, Second heat dissipation fin (3) still be equipped with connecting post (7), connecting post (7) are equipped with screw hole in, air duct board (5) are equipped with corresponding screw hole on, back hang strip (8) are connected connecting post (7) through screw.

3. The inductance box according to claim 1, characterized in that, The inductor box body (1) is provided with a limiting structure (9), and the air duct board (5) is provided with a limiting slot (51) matched with the limiting structure (9).

4. The inductance box according to claim 3, characterized in that, The air duct board (5) includes a bottom plate, a first side plate and a second side plate, the first side plate and the second side plate are both vertically arranged on the bottom plate, and the first side plate and the second side plate are perpendicular to each other.

5. The inductive box of claim 1, wherein, The mounting surface of the inductor box body (1) is provided with a limiting column (10).

6. The inductance box according to claim 5, characterized in that, The mounting surface is provided with a sealing groove (12) for mounting a sealing strip (11), and the sealing groove (12) surrounds the outer periphery of the containing cavity (101).

7. The inductive box of claim 6, wherein, The sealing groove (12) includes a first groove body (121) and a second groove body (122), the first groove body (121) is arranged along the outer edge of the mounting surface, the first groove body (121) is a ring groove, and the second groove body (122) is a lap joint groove at both ends of the sealing strip (11), the second groove body (122) is arranged on the inner side of the first groove body (121), and the second groove body (122) is connected with the first groove body (121) through a wedge surface.

8. The inductive box of claim 1, wherein, The first heat dissipation fin (2) extends in a direction perpendicular to the side plate of the inductor box body (1), the first heat dissipation fin (2) is arranged at equal intervals along the extension direction of the side plate of the inductor box body (1), and a plurality of first heat dissipation fins (2) arranged along the height direction of the inductor box body (1) are cross arranged.

9. The inductive box of any of claims 1-8, wherein, A plurality of clamping grooves for mounting the inductor are arranged in the containing cavity (101), and a partition plate (102) is arranged between part of the clamping grooves, the height of the partition plate (102) in the height direction of the inductor box body (1) is less than the diameter of the inductor, and heat-conducting silica gel (6) is further arranged in the containing cavity (101).

10. An inverter, characterized by, The inductor box comprises the inductor box of any one of claims 1-9. The inductor box comprises the inductor box of any one of claims 1-9.

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