Inverter

Abstract

The inverter comprises a front panel, the front panel is composed of an upper front panel, a middle front panel and a lower front panel which are sequentially connected from top to bottom, a circuit board cover plate is arranged on the inner side of the upper front panel and the inner side of the middle front panel, and an input and output jack panel is arranged on the inner side of the lower front panel; a cavity defined by a plurality of inner panels is arranged in the inverter, a data acquisition and transmission device bottom plate is arranged above the inner panel located at the top, a data acquisition and transmission device is arranged above the data acquisition and transmission device bottom plate, a top plate is arranged above the data acquisition and transmission device, and the top plate is arranged above the data acquisition and transmission device. Metal side plates are arranged on the two sides of the inverter, a circuit board assembly is arranged in a cavity defined by the inner panel, and the circuit board assembly is located on the inner side of the circuit board cover plate. A radiator backboard is arranged behind the circuit board assembly, and a radiator is arranged on the radiator backboard.

Description

Technical Field

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

[0002] An inverter is a converter that converts direct current electrical energy (batteries, accumulators) into fixed-frequency and fixed-voltage or frequency-modulated and voltage-regulated alternating current (generally 220V 50Hz sine wave). It consists of an inverter bridge, control logic, and a filter circuit, and is widely applicable to air conditioners, power tools, televisions, washing machines, range hoods, refrigerators, fans, lighting, etc.

[0003] Among them, a photovoltaic inverter is a device that charges a storage battery with the electrical energy generated by a solar cell, and the storage battery directly supplies power to a load. When the photovoltaic inverter box is placed outdoors, the excessively high temperature in summer will affect the heat dissipation effect of the photovoltaic inverter inside the box, thereby affecting the safety of the photovoltaic inverter. Moreover, the existing inverter structure is bulky and inconvenient to install and carry. Therefore, there is an urgent need in the art to design an inverter with good heat dissipation performance, a light structure, and easy installation and handling. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an inverter.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is specifically as follows:

[0006] An inverter includes a front panel, which is composed of an upper front panel, a middle front panel, and a lower front panel connected in sequence from top to bottom. A circuit board cover is provided inside the upper front panel and the middle front panel, and an input / output jack panel is provided inside the lower front panel;

[0007] A cavity enclosed by an inner panel top plate and inner panel side plates is provided inside the inverter. Above the inner panel top plate, there is a data acquisition and transmission device bottom plate. Above the data acquisition and transmission device bottom plate, there is a data acquisition and transmission device. Above the data acquisition and transmission device, there is a top plate. Metal side plates are provided on both sides of the inverter. A circuit board assembly is provided inside the cavity enclosed by the inner panel top plate and inner panel side plates, and the circuit board assembly is located inside the circuit board cover;

[0008] Behind the circuit board assembly, there is a radiator back plate, and a radiator is provided on the radiator back plate.

[0009] Further, a power indicator light and a switch are provided on the upper front panel.

[0010] Further, the heat dissipation fins of the radiator are arranged in parallel, and the cross-sectional shape of the heat dissipation fins is a trapezoid with a narrow upper part and a wide lower part.

[0011] Further, a communication line interface is provided on one side of the bottom plate of the data acquisition and transmission device.

[0012] Further, the switch includes an AC switch, a DC switch, and a main switch arranged in sequence from left to right.

[0013] Further, the top plate of the inner panel and the side plates of the inner panel are both bent towards the middle of the inverter to form a right angle, and at least one circuit board component mounting hole is provided on the bent part. The circuit board component is fixed together with the cavity formed by enclosing the top plate of the inner panel and the side plates of the inner panel through the circuit board component mounting hole.

[0014] Further, a plurality of radiator mounting holes are also provided on the bent parts of the top plate of the inner panel and the side plates of the inner panel. The back plate of the radiator is fixed together with the cavity formed by enclosing the top plate of the inner panel and the side plates of the inner panel through the radiator mounting holes.

[0015] Further, a buckle is provided on the rear side of the metal side plate, and a back hanging plate is provided behind the radiator. The back hanging plate is fixed to the metal side plate through the buckle; the back hanging plate is provided with a device for adjusting the horizontal position of the punching.

[0016] Further, a back plate lifting device is provided on the rear side of the metal side plate.

[0017] Further, a side fixing bracket is provided on the outer side of the metal side plate.

[0018] Alternatively, remove the top plate of the inner panel, the side plates of the inner panel, and the circuit board cover in the above inverter, directly connect the radiator to the circuit board component, and connect the metal side plate to the circuit board component.

[0019] Compared with the prior art, the outstanding effects of the present utility model are as follows:

[0020] The cross-sectional shape of the heat sink of the inverter of the present utility model is a trapezoid with a narrow upper part and a wide lower part. This design can reduce the weight of the product while ensuring the heat dissipation of the product, which is convenient for installation and handling. Moreover, in order to maintain the horizontal balance and stability after installation and avoid the friction between the product and the installation surface, a back plate lifting device is provided on the rear side of the metal side plate of the inverter. In addition, the front panel of the inverter is made of plastic material, and the back is provided with a back hanging plate, which reduces the weight of the product.

[0021] The inverter of the present utility model has a simple structure and is easy to assemble in the overall structure; the data acquisition and transmission device is built in a specific position in the upper part of the inverter, which is convenient for communicating with an external display device and replacing the data acquisition and transmission device. Moreover, in the case of wall-mounted use, it can facilitate the installation of the whole machine and maintain the accuracy of the installation.

[0022] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments for the inverter described herein. Description of the Drawings

[0023] Figures 1 - 2 It is a schematic exploded view of the structure of the inverter of the present utility model;

[0024] Figures 3 - 4 It is a schematic structural view of the inner panel;

[0025] Figure 5 It is a schematic structural view of the radiator back panel and the circuit board assembly;

[0026] Figure 6 It is a schematic installation view of the data acquisition and transmission device;

[0027] Figure 7 It is a schematic installation view of the bottom plate of the data acquisition and transmission device;

[0028] Figure 8 It is a schematic structural view of the radiator.

[0029] Among them, 1 - upper front panel, 2 - middle front panel, 3 - lower front panel, 4 - power indicator light, 5 - switch, 6 - top plate, 7 - data acquisition and transmission device, 8 - bottom plate of the data acquisition and transmission device, 91 - top plate of the inner panel, 92 - side plate of the inner panel, 10 - input / output jack panel, 11 - circuit board cover, 12 - circuit board assembly, 13 - metal side plate, 14 - radiator, 15 - inductor housing, 16 - back hanging plate, 17 - back plate lifting device, 18 - buckle, 19 - side fixing bracket, 20 - circuit board assembly mounting hole, 21 - radiator mounting hole, 22 - radiator back panel, 23 - communication line interface, 24 - heat sink fin. Detailed Embodiment

[0030] As Figures 1 - 8 shown, an inverter includes a front panel, and the front panel is composed of an upper front panel 1, a middle front panel 2, and a lower front panel 3 that are sequentially connected from top to bottom. A circuit board cover 11 is provided inside the upper front panel 1 and the middle front panel 2, and an input / output jack panel 10 is provided inside the lower front panel 3;

[0031] A cavity enclosed by a top plate 91 of the inner panel and side plates 92 of the inner panel is provided inside the inverter. A bottom plate 8 of the data acquisition and transmission device is provided above the top plate 91 of the inner panel. A data acquisition and transmission device 7 is provided above the bottom plate 8 of the data acquisition and transmission device. A top plate 6 is provided above the data acquisition and transmission device 7. Metal side plates 13 are provided on both sides of the inverter. A circuit board assembly 12 is provided inside the cavity enclosed by the top plate 91 of the inner panel and the side plates 92 of the inner panel, and the circuit board assembly 12 is located inside the circuit board cover 11;

[0032] A heat sink backplane 22 is provided at the rear of the circuit board assembly 12, and a heat sink 14 is provided on the heat sink backplane 22; an inductor housing 15 is provided on one side of the heat sink 14.

[0033] A power indicator light 4 and a switch 5 are provided on the upper front panel 1.

[0034] The heat dissipation fins 24 of the heat sink 14 are arranged in parallel. The cross-sectional shape of the heat dissipation fins 24 is a trapezoid that is narrow at the top and wide at the bottom. This design can reduce the weight of the product while ensuring heat dissipation of the product, facilitating installation and handling.

[0035] The data acquisition and transmission device 7 is fixed to the data acquisition and transmission device bottom plate 8 by screws, and the data acquisition and transmission device bottom plate 8 is fixed to the inner panel by screws. A communication line interface 23 is provided on one side of the data acquisition and transmission device bottom plate 8. A communication line is connected to the circuit board assembly to achieve data transmission. The data acquisition and transmission device 7 generally can adopt a device with standard Bluetooth or WIFI or other standard wireless communication to interact with a display device or other intelligent devices outside the inverter.

[0036] The switch 5 includes an AC switch, a DC switch, and a main switch arranged in sequence from left to right.

[0037] Both the inner panel top plate 91 and the inner panel side plate 92 are bent towards the middle of the inverter to form a right angle, and at least one circuit board assembly mounting hole 20 is provided on the bent part. The circuit board assembly 12 is fixed together with the cavity formed by the inner panel top plate 91 and the inner panel side plate 92 by screws passing through the circuit board assembly mounting hole 20.

[0038] The inner panel top plate 91 and the inner panel side plate 92 are jointly enclosed to form an inner panel frame, which is formed by suitable sheet metal through bending, welding, and riveting processes. The circuit board cover 11 is fixed by screws around. The circuit board cover 11 can improve the protection level of the product.

[0039] A plurality of heat sink mounting holes 21 are also provided on the bent parts of the inner panel top plate 91 and the inner panel side plate 92. The heat sink backplane 22 is fixed together with the cavity formed by the inner panel top plate 91 and the inner panel side plate 92 by screws passing through the heat sink mounting holes 21.

[0040] A buckle 18 is provided at the rear side of the metal side plate 13. A back hanging plate 16 is provided behind the radiator 14. The back hanging plate 16 is fixed to the metal side plate 13 through the buckle 18. As required, a device for adjusting the horizontal position of punching can also be added to the back hanging plate 16. A side fixing bracket 19 is provided on the outer side of the metal side plate 13. The metal side plate 13 is fixed to the inner panel by screws. The side fixing bracket 19 is fixed to the metal side plate 13 by screws.

[0041] The back hanging plate 16 is installed on both sides of the metal side plate through the buckle 18. During installation, first fix the back hanging plate to the wall or the installation surface (in some cases, a spirit level, such as a traditional bubble spirit level, is also provided on the back hanging plate to ensure that the fixed position of the back hanging plate is basically on the horizontal line during on-site installation), and then hang the whole inverter on the back hanging plate 16 through the buckle 18. After determining the position, further fix the whole machine to the installation surface through the side fixing bracket 19. In some usage scenarios, the side fixing bracket 19 can also be omitted. When the whole machine is directly placed on the ground for use, the back hanging plate 16 can also be omitted.

[0042] In other beneficial embodiments, the inner panel top plate 91, the inner panel side plate 92 and the circuit board cover 11 in the inverter can also be removed, and the radiator can be directly connected to the circuit board assembly, and the metal side plate can be connected to the circuit board assembly.

[0043] In order to maintain the horizontal balance and stability after installation and avoid the friction between the product and the installation surface, a back plate lifting device 17 can also be provided at the rear side of the metal side plate 13, and the back plate lifting device 17 can adopt a protrusion or a bump.

[0044] The front panel of this inverter is made of plastic material, and the back is made of a back hanging plate, which reduces the weight of the product.

[0045] The embodiments described above are only descriptions of the preferred implementation modes of the present invention, and do not limit the scope of the present invention. It should not be understood as a limitation of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An inverter, characterized in that: The device comprises a front panel, the front panel comprising an upper front panel (1), a middle front panel (2) and a lower front panel (3) which are connected in sequence from top to bottom, a circuit board cover (11) being provided on the inner side of the upper front panel (1) and the middle front panel (2), and an input / output jack panel (10) being provided on the inner side of the lower front panel (3); The inverter is provided with a cavity formed by an inner panel top plate (91) and an inner panel side plate (92) inside, a data acquisition and transmission device bottom plate (8) is provided above the inner panel top plate (91), a data acquisition and transmission device (7) is provided above the data acquisition and transmission device bottom plate (8), a top plate (6) is provided above the data acquisition and transmission device (7), metal side plates (13) are provided on both sides of the inverter, a circuit board assembly (12) is provided in the cavity formed by the inner panel top plate (91) and the inner panel side plates (92), and the circuit board assembly (12) is located on the inner side of the circuit board cover plate (11); A radiator back plate (22) is provided at the rear of the circuit board assembly (12), and a radiator (14) is provided on the radiator back plate (22).

2. The inverter according to claim 1, characterized in that: The upper front panel (1) is provided with a power indicator light (4) and a switch (5).

3. The inverter according to claim 2, characterized in that: The switch (5) comprises an AC switch, a DC switch and a main switch which are arranged in sequence from left to right.

4. The inverter according to claim 1, characterized in that: The heat sinks (24) of the heat sink (14) are arranged in parallel, and the cross-sectional shape of the heat sink (24) is a trapezoid that is narrow at the top and wide at the bottom.

5. The inverter according to claim 1, characterized in that: A communication line interface (23) is provided on one side of the bottom plate (8) of the data collection and transmission device.

6. The inverter according to claim 1, characterized in that: The inner panel top plate (91) and the inner panel side plate (92) are both bent toward the middle of the inverter to form a right angle, and at least one circuit board assembly mounting hole (20) is provided on the bent portion, and the circuit board assembly (12) is fixed together with a cavity enclosed by the inner panel top plate (91) and the inner panel side plate (92) through the circuit board assembly mounting hole (20).

7. The inverter according to claim 6, characterized in that: A plurality of radiator mounting holes (21) are also provided on the bent portions of the inner panel top plate (91) and the inner panel side plates (92), and the radiator back plate (22) is fixed together with the cavity enclosed by the inner panel top plate (91) and the inner panel side plates (92) through the radiator mounting holes (21).

8. The inverter according to claim 1, characterized in that: A buckle (18) is provided on the rear side of the metal side plate (13); a back-hanging plate (16) is provided on the rear of the radiator (14); the back-hanging plate (16) is fixed to the metal side plate (13) via the buckle (18); and the back-hanging plate (16) is provided with a device for adjusting the horizontal position of the punching hole.

9. The inverter according to claim 1, characterized in that: A back plate lifting device (17) is provided on the rear side of the metal side plate (13); and a side fixing bracket (19) is provided on the outer side of the metal side plate (13).

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