CN214412570U

CN214412570U - Novel low-voltage inverter rectification core structure

Info

Publication number: CN214412570U
Application number: CN202120288580.4U
Authority: CN
Inventors: 张树林; 郑友斌; 邓仕方; 闫昊
Original assignee: Hope Senlan Science & Technology Corp ltd
Current assignee: Hope Senlan Science & Technology Corp ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-10-15
Anticipated expiration: 2031-02-02

Abstract

The utility model provides a novel low-voltage inverter rectification core structure. The novel rectifier core structure of the low-voltage frequency converter is arranged in a delta shape and is represented by a left part, a right part and a lower part, and the radiator of the left side structure adopts an independent air duct design, so that the working temperature of components is reduced, the performance of the core is improved, and the service life of the core is prolonged; the right side structure is an arrangement structure of components and printed boards, the components are compact in structure arrangement, the connection distance of an electric loop is short, the components are connected by adopting an aluminum bar or a copper bar, and the printed boards are connected by adopting cables, aluminum bars or copper bars; the lower side structure is designed as a detachable independent fan; the core structure is easy to install and operate, the whole unit is designed, and the disassembly and the maintenance are convenient; the whole structure of the machine core is compact, the volume of the machine core is smaller than that of the traditional frequency converter, and the weight and the cost are lower.

Description

Novel low-voltage inverter rectification core structure

Technical Field

The utility model relates to a novel low-voltage inverter rectification core structure device.

Background

With the progress of science and technology, the motor frequency conversion control technology has been widely used in the fields of heavy machinery, agriculture, logistics, buildings and the like. The rectification mechanism of the low-voltage frequency converter consists of power electronic devices, rectifies alternating current and outputs direct current, is an indispensable link in the motor frequency conversion control technology, and directly influences the overall installation, maintenance, volume and cost due to the structural design; meanwhile, the heat dissipation design of the internal high-power electronic device also directly influences the performance and the service life of the whole machine.

The rectifier mechanism of the frequency converter in the motor frequency conversion control technology needs to be supplemented with the inverter mechanism, most parts are spliced by parts in a large cabinet in the prior art, the bus-bar wiring is complex, the checking is not easy, the disassembly and maintenance cost is high, high-power-consumption components in the inverter mechanism are more, the failure rate is high after long-term working, and the reliability of the rectifier mechanism is influenced.

Disclosure of Invention

The to-be-solved technical problem of the utility model lies in to the whole mixed installation of above-mentioned low-voltage inverter rectification structure, walk the line complicacy, be difficult for the nuclear examine, dismantle and the problem that the maintenance cost is high, provide a unitized small volume, simple, the convenient low-voltage inverter rectification core structure of maintenance of installation.

The technical scheme adopted by the utility model for solving the technical problems is to provide a novel rectifier core structure of a low-voltage frequency converter, which comprises an integral structure for installing the core, an arrangement mode of rectifier modules, installation of laminated busbars, connection of external copper parts and absorption PCB boards and installation of a fan; the rectifier modules are uniformly distributed and fixed on the radiator, and the absorption PCB is directly or indirectly connected with the laminated busbar and the external copper piece and is grounded and connected with the bottom frame.

Among the low-voltage inverter rectification core, core overall structure divide into left and right, lower triplex with "article font": the left side structure is designed into an independent air duct, and a radiator is arranged; the right structure is arranged by components and comprises a rectifying module, an absorption PCB and a connecting cable; the lower side structure is arranged for the detachable independent fan and comprises a fan, a wiring terminal, an external connector and a connecting cable.

In the rectification core of the low-voltage frequency converter, the air deflector, the left side plate, the bottom frame, the middle partition plate, the first air channel partition plate and the cover plate jointly form an independent air channel of the core, and the second air channel partition plate is arranged on the middle partition plate to separate a right side structure from an air channel; the heat dissipation mode is blowing, and the fan is fixed on the fan mounting plate; the radiator in the independent air duct is fixed on the middle partition plate in the independent air duct, and the bottom frame is provided with an air passing hole of the fan.

In the rectifier core of the low-voltage frequency converter, the laminated busbar is arranged on the rectifier module; and the first external copper part penetrates through the bottom frame and is fixedly connected with the rectification module.

Among the low-voltage inverter rectifier core, the fan openly is fixed in on the fan mounting panel, can dismantle in a flexible way and take out, and binding post, external piece fixed mounting are on box center down, and lower box apron is fixed in down on the box center.

Among the low-voltage inverter rectifier core, wind channel baffle two is installed on the median septum, cuts off right side components and parts and wind channel.

In the low-voltage inverter rectifier core, external copper spare two passes underframe and female fixed connection that arranges of stromatolite.

Among the low-voltage inverter rectifier core, the fan structurally belongs to spiral case fan, compares in traditional axial fan, and the advantage lies in small, the noise is little, the amount of wind is big, and the effect is obvious among the forced air cooling system.

Drawings

Fig. 1 is a schematic diagram of a novel rectifier core structure of a low-voltage frequency converter in a heat dissipation manner.

Fig. 2 is an overall structural schematic diagram of a novel low-voltage frequency converter core.

Fig. 3 is a structural arrangement schematic diagram of a rectifier core rectification module of the novel low-voltage frequency converter.

Fig. 4 is a schematic diagram of an independent air duct structure of a rectifier core of the novel low-voltage frequency converter.

Fig. 5 is a schematic diagram of the external connection mode of the rectifier core of the novel low-voltage frequency converter.

Fig. 6 is an installation schematic diagram of a rectification fan of the novel low-voltage frequency converter.

Fig. 7 is a schematic perspective view of a rectifier core structure of the novel low-voltage frequency converter.

Detailed Description

In order to make the technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the invention.

As shown in fig. 1-6, the rectifier core structure of the frequency converter comprises a bottom frame, a middle partition plate, an air deflector, a left side plate, a first air channel partition plate, a second air channel partition plate, a right side plate, a cover plate, a fan mounting plate, a lower box middle frame, a lower box reinforcing plate, a lower box left side plate, a lower box right side plate, a lower box cover plate, a fan, a rectifier module, a laminated busbar, an absorption PCB plate, a wiring terminal, a fuse, a first external copper part, a second external copper part, an external part, a handle, a lifting ring, a mounting back plate and a radiator.

As shown in the schematic diagram of fig. 1, the heat dissipation mode of the rectifier core structure of the low-voltage inverter is air blowing.

As shown in fig. 2, the schematic diagram of the rectifier core structure of the low-voltage inverter of the present invention is shown. The novel rectifier core structure of the low-voltage frequency converter can be divided into three parts, wherein the left side structure is designed into an independent air duct and is provided with a radiator; the right structure is arranged by components and comprises a rectifying module, an absorption PCB and a connecting cable; the lower side structure is arranged for the detachable independent fan, and is provided with the fan, the wiring terminal, the external connector and the connecting cable. This overall arrangement mode integral erection is simple, and the independent wind channel arrangement structure in left side can effectually reduce the high components and parts operating temperature of heat, can improve the performance and the life-span of rectifier core again, and the fan is independent of whole core lower part, easy to assemble, maintenance and change.

Fig. 3 is a schematic structural arrangement diagram of a rectifier core and a rectifier module of the novel low-voltage frequency converter. The rectifier modules are uniformly distributed and fixed on the radiator, and the absorption PCB is directly or indirectly connected with the laminated busbar, the external copper part I and the external copper part II and is connected with the bottom frame in a grounding mode.

Fig. 4 is a schematic diagram illustrating an arrangement of an independent air duct structure of a rectifier core of the novel low-voltage frequency converter. The air deflector, the left side plate, the bottom frame, the middle partition plate, the first air channel partition plate and the cover plate jointly form an independent air channel of the machine core, and the second air channel partition plate is installed on the middle partition plate and partitions the right side structure and the air channel.

Fig. 5 is a schematic diagram of the layout of the novel low-voltage inverter rectifier core in an external connection mode. The external copper part II penetrates through the bottom frame to be fixedly connected with the laminated busbar, and the external copper part I penetrates through the bottom frame to be fixedly connected with the rectifying module.

Fig. 6 is a schematic view illustrating installation of a rectification fan of the novel low-voltage frequency converter. The front side of the fan is fixed on the fan mounting plate, the fan can be flexibly detached and taken out, and the fan is simple to mount and convenient to maintain.

It is right to have used specific individual example above the utility model discloses expound, only be used for helping to understand the utility model discloses, not be used for the restriction the utility model discloses. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A novel rectifier core structure of a low-voltage frequency converter comprises a sheet metal shell, components and functional parts, wherein a middle partition plate (2) is installed in a bottom frame (1), the inner cavity of the bottom frame (1) is divided into two parts, a radiator (27) is arranged in the inner cavity of the bottom frame (1), the radiator (27) is fixed on the middle partition plate (2) through screws, a first air duct partition plate (5) is riveted on the bottom frame (1), the other side of the air duct partition plate is close to fins of the radiator (27), an air deflector (3) and a left side plate (4) are riveted into a whole, the left side plate (4) is connected with the bottom frame (1) through screws, a second air duct partition plate (6) is installed on the middle partition plate (2), the cavity area of the bottom frame (1) is isolated from the radiator (27), rectifier modules (16) are uniformly fixed on the installation surface of the radiator (27) through screws, a laminated busbar (17) is installed on the rectifier modules (16) through screws, the external copper part I (21) penetrates through the bottom frame (1) to be fixedly connected with the rectifier module (16), the other side penetrates through the bottom frame (1) to be in screw connection with the fuse (20), the absorption PCB (18) is connected with the external copper part I (21) and the external copper part II (22), the external copper part II (22) penetrates through the bottom frame (1) to be in screw fixed connection with the laminated busbar (17), the right side plate (7) is installed on the side surface of the bottom frame (1) through screws, the cover plate (8) is installed on the front surface of the bottom frame (1) through screws, the top surface of the lower box middle frame (10) is in screw connection with the bottom surface of the bottom frame (1), the fan installation plate (9) is installed on the top surface of the lower box middle frame (10), the lower box reinforcing plate (11) is vertically installed on the lower box left side plate (12) and the lower box right side plate (13), the lower box left side plate (12) and the lower box right side plate (13) are installed on the two side surfaces of the lower box middle frame (10) through screws, the lower box cover plate (14) is fixed on the lower box middle frame (10) through screws, the fan (15) is placed in a cavity of the lower box middle frame (10) through a fan mounting plate (9) and is fixedly connected with the fan mounting plate (9) through screws, the wiring terminal (19) is mounted on the bottom surface of the lower box middle frame (10), the external connecting piece (23) is mounted on the back of the lower box middle frame (10) through screws, the handle (24) is mounted on the cover plate (8), the left side plate (4) and the right side plate (7) through screws, the mounting back plate (26) is connected with the top surface of the bottom frame (1), and the lifting ring (25) penetrates through the mounting back plate (26) to be connected with the top surface of the bottom frame (1); it is characterized in that the movement structure is divided into a left part, a right part and a lower part by a triangle shape: the left side structure is designed into an independent air duct, and a radiator (27) is arranged in the independent air duct; the right structure is formed by arranging components, and the arranged components comprise a rectifying module (16), an absorption PCB (18) and a connecting cable; the lower side structure is arranged for a detachable independent fan and comprises a fan (15), a wiring terminal (19), an external piece (23) and a connecting cable.

2. The novel rectifier core structure of the low-voltage frequency converter according to claim 1, characterized in that: the air deflector (3), the left side plate (4), the bottom frame (1), the middle partition plate (2), the first air channel partition plate (5) and the cover plate (8) jointly form an independent air channel of the machine core, and the second air channel partition plate (6) is arranged on the middle partition plate (2) and partitions a right side structure from the air channel; the heat dissipation mode is blowing, and the fan (15) is fixed on the fan mounting plate (9); the radiator (27) inside the independent air duct is fixed on the middle partition plate (2), and the bottom frame (1) is provided with an air passing hole of the fan (15).

3. The novel rectifier core structure of the low-voltage frequency converter according to claim 1, characterized in that: the rectifier modules (16) are uniformly distributed and fixed on the mounting surface of the radiator (27); the laminated busbar (17) is arranged on the rectifier module (16), and the external copper part I (21) penetrates through the bottom frame (1) and is fixedly connected with the rectifier module (16).

4. The novel rectifier core structure of the low-voltage frequency converter according to claim 1, characterized in that: the fan (15) is positively fixed on the fan mounting plate (9), the wiring terminal (19) and the external piece (23) are fixedly arranged on the lower box body middle frame (10), and the lower box body cover plate (14) is fixed on the lower box body middle frame (10).

5. The novel rectifier core structure of the low-voltage frequency converter according to claim 1, characterized in that: and the main loop of the absorption PCB (18) is directly or indirectly fixed on the first external copper part (21) and the second external copper part (22) and is connected with the bottom frame (1) in a grounding way.

6. The novel rectifier core structure of the low-voltage frequency converter according to claim 1, characterized in that: the laminated busbar (17) is fixed on the rectifying module (16).

7. The novel rectifier core structure of the low-voltage frequency converter is characterized in that a second air duct partition plate (6) is arranged on the middle partition plate (2) and used for separating a right-side component from an air duct.

8. The novel rectifier core structure of the low-voltage frequency converter according to claim 1, wherein the external copper member II (22) penetrates through the bottom frame (1) and is fixedly connected with the laminated busbar (17).

9. The novel rectifier core structure of the low-voltage frequency converter is characterized in that the fan (15) structurally belongs to a volute fan.