High-power three-phase two-level inverter

Abstract

The utility model discloses a high-power three-phase two-level inverter, relates to the technical field of power equipment, and provides the following scheme aiming at the problems that the conventional inverter is lack of a vibration absorption structure and is inconvenient to clean dust at a heat dissipation port: the inverter comprises a shell, a bottom plate is arranged at the bottom end of the shell, and a vibration-proof mounting plate is arranged at the top end of the bottom plate; an inverter body is arranged on the mounting plate, detachable dustproof nets are arranged on the two sides of the shell respectively, a rotary top plate is arranged at the top end of the shell, a display screen is arranged on the front face of the shell, and a cooling fan is arranged on the back face of the shell. According to the utility model, the vibration generated when the inverter body works can be effectively absorbed, the heat dissipation effect in the housing is improved, and the detachable dust-proof net at the heat dissipation port facilitates regular cleaning of dust on the dust-proof net.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a high-power three-phase two-level inverter. Background Art

[0002] An inverter is a converter that converts direct current into alternating current. It is a common power equipment. The main body of the inverter is the inverter circuit, and it also includes control, protection, and filtering circuits. An inverter is a DCtoAC transformer. In fact, it is a voltage inversion process like a converter. It is widely used in office equipment, household appliances, or batteries. Inverters are mainly divided into two categories, one is based on the wave string properties, and the other is based on the source current properties. The characteristics of the inverter are high conversion efficiency, fast startup, good safety performance, good physical properties, and strong load adaptability and stability.

[0003] The existing inverter lacks a vibration-absorbing structure, and it is not easy to clean the dust at the heat dissipation port. Dust accumulation is not conducive to heat dissipation. The inverter is in a high-temperature state for a long time, which will affect the stability and service life of the operation. Therefore, we propose a high-power three-phase two-level inverter. Utility Model Content

[0004] The utility model provides a high-power three-phase two-level inverter, which solves the problem that the existing inverter lacks a vibration absorbing structure and is inconvenient to clean dust at the heat dissipation opening.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-power three-phase two-level inverter comprises a shell, a bottom plate is arranged at the bottom end of the shell, a shockproof mounting plate is arranged at the top end of the bottom plate, an inverter body is arranged on the mounting plate, detachable dustproof nets are arranged on both sides of the shell, and a rotating top plate is arranged at the top end of the shell, a display screen is arranged on the front side of the shell, and a cooling fan is arranged on the back side.

[0007] Preferably, support legs are provided at the four corners of the bottom end of the mounting plate, the bottom of the support leg is connected to one end of the buffer spring, and the support leg is sleeved on the corresponding T-shaped leg, the T-shaped leg is connected to the other end of the buffer spring, and the T-shaped leg is installed on the top of the base plate.

[0008] Preferably, mesh limiting plates are respectively provided on both sides of the inverter body, and the bottom ends of the mesh limiting plates are respectively connected to the mounting plates through fixing bolts.

[0009] Preferably, horizontal plates are respectively provided on both sides of the shell, the horizontal plates are connected to one end of a positioning spring, the other end of the positioning spring is connected to a dustproof net, a rotating block is provided outside the dustproof net, one end of the rotating block is connected to the positioning block, and the positioning blocks are installed on the outer walls of both sides of the shell.

[0010] Preferably, one end of the top plate is connected to a rotating rod, which is installed in a rectangular groove at the top of the shell, and the other end of the top plate is provided with a card block, which is engaged with the card slot, the card slot is opened on a fixed block, and the fixed block is installed at the top of the inner wall of the shell.

[0011] Preferably, a control button is provided on one side of the display screen, and an indicator light is provided below the control button.

[0012] Preferably, a circular through hole is opened on the back side of the shell, a cooling fan is arranged in the through hole, the cooling fan is connected to the protective cover through a support rod, and cooling ports are arranged on both sides of the shell, and dustproof nets are arranged at the cooling ports.

[0013] The beneficial effects of the utility model are as follows: the vibration generated when the inverter body is working is absorbed by the buffer spring, the mesh limit plates on both sides of the inverter body limit the position of the inverter body and will not affect the heat dissipation of the inverter body, the cooling fan on the back of the shell dissipates heat for the inverter body, and the hot air is discharged from the heat dissipation ports on both sides of the shell, and dustproof nets are arranged at the heat dissipation ports to prevent dust from entering the inside of the shell. After the dustproof net is used for a long time, the rotating block is rotated, and the dustproof net is popped out under the action of the positioning spring, and the dustproof net can be taken out for cleaning; the top plate is rotatably connected to the shell, and when a fault occurs inside the shell, the top plate can be directly opened to repair the inside.

[0014] In summary, the utility model can effectively absorb the vibration generated when the inverter body is working, improve the heat dissipation effect inside the shell, and the detachable dustproof net at the heat dissipation port is convenient for regular cleaning of dust on the dustproof net. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a top sectional view of the utility model;

[0017] Figure 3 This is a schematic diagram of the heat dissipation fan structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the inverter body structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the dustproof net structure of the utility model.

[0020] Numbers in the figure: 1. Shell; 2. Bottom plate; 3. T-leg; 4. Buffer spring; 5. Support leg; 6. Mounting plate; 7. Inverter body; 8. Mesh limit plate; 9. Fixing bolt; 10. Dust net; 11. Horizontal plate; 12. Positioning spring; 13. Positioning block; 14. Rotating block; 15. Top plate; 16. Rotating rod; 17. Block; 18. Fixed block; 19. Slot; 20. Display screen; 21. Control button; 22. Indicator light; 23. Through hole; 24. Cooling fan; 25. Support rod; 26. Protective cover. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 5 A high-power three-phase two-level inverter comprises a shell 1, a bottom plate 2 is arranged at the bottom end of the shell 1, a shockproof mounting plate 6 is arranged at the top end of the bottom plate 2, supporting legs 5 are arranged at the four corners of the bottom end of the mounting plate 6, the bottom of the supporting leg 5 is connected to one end of a buffer spring 4, the buffer spring 4 is used to absorb the vibration generated when the inverter body 7 is working, and the supporting leg 5 is sleeved on the corresponding T-leg 3, the T-leg 3 is connected to the other end of the buffer spring 4, and the T-leg 3 is installed at the top end of the bottom plate 2, the inverter body 7 is arranged on the mounting plate 6, mesh limiting plates 8 are respectively arranged on both sides of the inverter body 7, the mesh limiting plates 8 are used to limit the position of the inverter body 7, and the bottom ends of the mesh limiting plates 8 are respectively connected to the mounting plate 6 by fixing bolts 9, a display screen 20 is arranged on the front of the shell 1, a control button 21 is arranged on one side of the display screen 20, and an indicator light 22 is arranged below the control button 21.

[0023] A detachable dust screen 10 is provided on both sides of the shell 1, and a horizontal plate 11 is provided on both sides of the inside of the shell 1, the horizontal plate 11 is connected to one end of a positioning spring 12, and the other end of the positioning spring 12 is connected to the dust screen 10, and a rotating block 14 is provided outside the dust screen 10, and the rotating block 14 is used to limit the position of the dust screen 10, and one end of the rotating block 14 is connected to the positioning block 13, and the positioning block 13 is installed on the outer walls of both sides of the shell 1, and a rotating top plate 15 is provided on the top of the shell 1, and one end of the top plate 15 is connected to A rotating rod 16 is installed in a rectangular groove at the top of the shell 1, and a card block 17 is provided at the other end of the top plate 15, and the card block 17 is engaged with the card slot 19, and the card slot 19 is provided on a fixed block 18, and the fixed block 18 is installed at the top of the inner wall of the shell 1. A circular through hole 23 is provided on the back of the shell 1, and a cooling fan 24 is provided in the through hole 23. The cooling fan 24 is connected to the protective cover 26 through a support rod 25, and cooling ports are provided on both sides of the shell 1, and a dustproof net 10 is provided at the cooling port.

[0024] During use, the vibration generated by the operation of the inverter body 7 is absorbed by the buffer spring 4, the mesh limit plates 8 on both sides limit the position of the inverter body 7, and the cooling fan 24 on the back of the shell 1 dissipates heat for the inverter body 7, and the hot air is discharged from the heat dissipation ports on both sides of the shell 1. A dustproof net 10 is provided at the heat dissipation port to prevent dust from entering the interior of the shell 1. After the dustproof net 10 has been used for a long time, the rotating block 14 is rotated, and the dustproof net 10 pops out under the action of the positioning spring 12. At this time, the dustproof net 10 can be taken out for cleaning. The top plate 15 is rotatably connected to the shell 1. When a fault occurs inside the shell 1, the top plate 15 can be directly opened for maintenance.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-power three-phase two-level inverter, comprising a housing (1), characterized in that: The bottom end of the shell (1) is provided with a base plate (2), the top end of the base plate (2) is provided with a shockproof mounting plate (6), the mounting plate (6) is provided with an inverter body (7), both sides of the shell (1) are provided with detachable dustproof nets (10), and the top end of the shell (1) is provided with a rotating top plate (15), the front of the shell (1) is provided with a display screen (20), and the back end of the shell (1) is provided with a cooling fan (24).

2. A high-power three-phase two-level inverter according to claim 1, characterized in that: Support legs (5) are provided at the four corners of the bottom end of the mounting plate (6); the bottom of the support leg (5) is connected to one end of the buffer spring (4); the support leg (5) is sleeved on the corresponding T-shaped leg (3); the T-shaped leg (3) is connected to the other end of the buffer spring (4); and the T-shaped leg (3) is mounted on the top end of the bottom plate (2).

3. A high-power three-phase two-level inverter according to claim 1, characterized in that: Mesh-shaped limit plates (8) are respectively arranged on both sides of the inverter body (7), and the bottom ends of the mesh-shaped limit plates (8) are respectively connected to the mounting plate (6) via fixing bolts (9).

4. A high-power three-phase two-level inverter according to claim 3, characterized in that: A transverse plate (11) is provided on both sides of the shell (1), the transverse plate (11) is connected to one end of a positioning spring (12), the other end of the positioning spring (12) is connected to a dustproof net (10), a rotating block (14) is provided outside the dustproof net (10), one end of the rotating block (14) is connected to a positioning block (13), and the positioning block (13) is installed on the outer walls of both sides of the shell (1).

5. A high-power three-phase two-level inverter according to claim 4, characterized in that: One end of the top plate (15) is connected to a rotating rod (16), the rotating rod (16) is installed in a rectangular groove at the top end of the shell (1), and the other end of the top plate (15) is provided with a clamping block (17), the clamping block (17) is clamped and connected with a clamping groove (19), the clamping groove (19) is provided on a fixing block (18), and the fixing block (18) is installed at the top end of the inner wall of the shell (1).

6. A high-power three-phase two-level inverter according to claim 1, characterized in that: A control button (21) is provided on one side of the display screen (20), and an indicator light (22) is provided below the control button (21).

7. A high-power three-phase two-level inverter according to claim 1, characterized in that: A circular through hole (23) is provided on the back of the shell (1), a cooling fan (24) is arranged in the through hole (23), the cooling fan (24) is connected to the protective cover (26) through a support rod (25), and cooling ports are provided on both sides of the shell (1), and dustproof nets (10) are provided at the cooling ports.

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