CN220067234U

CN220067234U - Mining frequency converter

Info

Publication number: CN220067234U
Application number: CN202321220987.9U
Authority: CN
Inventors: 马兴华; 宋玉斌; 张金凯; 白忠伟; 刘玉霖; 李培培; 陈美竹; 韩超
Original assignee: Huaxia Tianxin Intelligent Internet Of Things Co ltd
Current assignee: Huaxia Tianxin Intelligent Internet Of Things Co ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-11-21
Anticipated expiration: 2033-05-19

Abstract

The utility model relates to the technical field of frequency converters, in particular to a mining frequency converter. The frequency converter includes: the frequency conversion box body, and set up module assembly and range upon range of female arranging in the frequency conversion box body, module assembly includes rectifier module, contravariant module and electric capacity module, and rectifier module and contravariant module set up on the lateral wall of frequency conversion box body, and electric capacity module sets up on the bottom surface of frequency conversion box body, and rectifier module, contravariant module and electric capacity module are connected through range upon range of female arranging. Because the rectifying module and the inversion module are arranged on the side wall of the frequency conversion box body, and the capacitance module is arranged on the bottom surface of the frequency conversion box body, the rectifying module, the inversion module and the capacitance module are not interfered with each other during installation, and the interval between the modules is larger when the modules are overhauled because the modules are not arranged in a laminated mode, so that the modules can be overhauled directly, and the overhauling is more convenient. The laminated busbar does not need to be bent when connecting the modules, so that the structure of the laminated busbar of the embodiment is simpler.

Description

Mining frequency converter

Technical Field

The utility model relates to the technical field of frequency converters, in particular to a mining frequency converter.

Background

The three-level topological structure has the advantages of large output capacity, high output voltage, small current harmonic content and the like, so that the three-level structure is widely applied to the field of variable frequency speed regulation of high-voltage high-power alternating current motors.

In the prior art, patent document CN110739809A discloses a 3300V mining flameproof and intrinsically safe permanent magnet synchronous variable-frequency speed regulation all-in-one machine, a rectifying module, an inversion power module, a laminated busbar and an energy storage capacitor module are arranged in a frequency converter, wherein the rectifying module and the inversion power module are distributed on the same plane, the energy storage capacitor module is formed by connecting three separated power capacitors in parallel, and the inversion power module, the laminated busbar and the energy storage capacitor module are distributed in layers from bottom to top, so that the space is compact, and the integral volume of the frequency converter is reduced.

In the above patent document, the frequency converter is installed on the permanent magnet synchronous motor, so that a compact space layout is necessary, but when the frequency converter is independently arranged, the requirement on occupied space is reduced, and when each module in the frequency converter adopts a compact space layout, the installation and the maintenance are inconvenient, and the busbar structure is complex.

Disclosure of Invention

Therefore, the utility model provides a mining frequency converter, which solves the problems that after each module in the frequency converter in the prior art adopts a compact space layout, the installation and the repair are inconvenient, and the busbar structure is complex.

The technical scheme of the utility model is as follows:

a mining frequency converter comprising: the frequency conversion box body, and set up module assembly and range upon range of female arranging in the frequency conversion box body, module assembly includes rectifier module, contravariant module and electric capacity module, rectifier module and contravariant module set up on the lateral wall of frequency conversion box body, electric capacity module sets up on the bottom surface of frequency conversion box body, rectifier module, contravariant module and electric capacity module are connected through range upon range of female arranging.

Preferably, the mining frequency converter further comprises a mounting plate, wherein the mounting plate is connected with the side wall of the frequency conversion box body, and the rectifying module and the inversion module are arranged on the mounting plate.

Preferably, the mining frequency converter further comprises: the supporting seat is arranged on the bottom surface of the frequency conversion box body, and the capacitor module is arranged on the supporting seat.

Preferably, the inverter module is disposed above the capacitor module and the rectifier module in a vertical direction.

Preferably, the laminated busbar includes: the power supply device comprises a rectifying busbar, a capacitor busbar and an inversion busbar, wherein the rectifying busbar is connected with the rectifying module, the capacitor busbar is connected with the capacitor module, and the inversion busbar is connected with the inversion module.

Preferably, the rectifying busbar is perpendicular to the inverting busbar, and the inverting busbar and the capacitor busbar are in the same plane.

Preferably, the rectifying busbar is parallel to the side wall of the frequency conversion box body.

Preferably, rectifying electrodes are arranged on the rectifying busbar, and the rectifying electrodes are perpendicular to the rectifying busbar so as to be connected with the inversion busbar and/or the capacitor busbar.

Preferably, the inversion busbar is provided with an inversion electrode, the capacitance busbar is provided with a capacitance electrode, and the capacitance electrode, the inversion electrode and the rectification electrode are connected.

Preferably, at least two groups of module assemblies are arranged in the variable frequency box body, and the two groups of modules are separated by a partition plate.

The technical scheme of the utility model has the following advantages:

the mining frequency converter of the utility model comprises: the frequency conversion box body, and set up module assembly and range upon range of female arranging in the frequency conversion box body, module assembly includes rectifier module, contravariant module and electric capacity module, owing to set up rectifier module and contravariant module on the lateral wall of frequency conversion box body, and set up electric capacity module on the bottom surface of frequency conversion box body, rectifier module, contravariant module and electric capacity module mutually noninterfere when the installation to because each module is not range upon range of setting when the maintenance, the interval between each module is great, consequently can directly overhaul each module, it is more convenient to overhaul. In addition, the mode of up-down lamination is not adopted, and the lamination busbar does not need to be bent when connecting each module, so that the structure of the lamination busbar of the embodiment is simpler.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a mining inverter of the present utility model;

fig. 2 is a schematic view of the structure of fig. 1 with the frequency conversion box panel removed.

FIG. 3 is a schematic view of a modular assembly according to the present utility model;

fig. 4 is an exploded view of the structure shown in fig. 3.

Reference numerals illustrate:

1-a frequency conversion box body; a 2-rectification module; 3-an inversion module; a 4-capacitance module; 5-mounting plates; 6, a supporting seat; 7-rectifying busbar; 8-capacitor busbar; 9-inverting busbar; 10-rectifying electrodes; 11-an inversion electrode; 12-a capacitive electrode; 13-separator.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

The mining frequency converter of this embodiment, as shown in fig. 1 to 4, includes: the frequency conversion box 1, and set up in the module subassembly and range upon range of female arranging in the frequency conversion box 1, the module subassembly includes rectifier module 2, contravariant module 3, electric capacity module 4, rectifier module 2 and contravariant module 3 set up on the lateral wall of frequency conversion box 1, electric capacity module 4 sets up on the bottom surface of frequency conversion box 1, rectifier module 2, contravariant module 3 and electric capacity module 4 are connected through range upon range of female arranging. In the present embodiment, the specific structure of the inverter box 1 is not limited.

In this embodiment, since the rectifying module 2 and the inverting module 3 are disposed on the side wall of the frequency conversion box 1, and the capacitance module 4 is disposed on the bottom surface of the frequency conversion box 1, the rectifying module 2, the inverting module 3 and the capacitance module 4 do not interfere with each other when being mounted, and since the modules are not stacked when being overhauled, the interval between the modules is large, so that the modules can be overhauled directly, and the overhauling is more convenient. In addition, the mode of stacking up and down is not adopted, and the busbar in the embodiment does not need to be bent when connecting each module, so that the stacked busbar in the embodiment has simpler structure.

Further, the mining frequency converter of this example further includes a mounting plate 5, the mounting plate 5 with the lateral wall of the frequency conversion box 1 is connected, the rectification module 2 with the contravariant module 3 sets up on the mounting plate 5, is connected rectification module 2 and contravariant module 3 with the frequency conversion box 1 through mounting plate 5. Specifically, screw holes are formed in the mounting plate 5, and the mounting plate 5 can be connected with the side wall of the frequency conversion box body 1 through bolts.

As a convertible embodiment, a cooling and heat dissipating structure, such as a cooling water pipe or the like, may be provided on the mounting plate 5 to cool the rectifying module 2 and the inverting module 3.

Further, this mining converter still includes: the supporting seat 6, the supporting seat 6 is arranged on the bottom surface of the frequency conversion box body 1, and the capacitor module 4 is arranged on the supporting seat 6. Specifically, the support base 6 of the present embodiment is made of a plate material, which is in an inverted "U" shape.

As a convertible embodiment, a lifting mechanism connected with the supporting seat 6 may be provided, and the position of the supporting seat 6 in the vertical direction is adjusted by the lifting mechanism, so as to adjust the position of the supporting seat 6, so as to realize accurate connection of the rectifying module 2, the inverting module 3 and the capacitor module 4 through the laminated busbar.

Specifically, the inverter module 3 is disposed above the capacitor module 4 and the rectifier module 2 in the vertical direction. As a convertible embodiment, the rectifying module 2 is arranged above the capacitor module 4 and the inverter module 3 in the vertical direction, in other words, the positions of the inverter module 3 and the rectifying module 2 are replaced.

Wherein, the range upon range of female row includes: the rectifying busbar 7, the capacitor busbar 8 and the inversion busbar 9, wherein the rectifying busbar 7 is connected with the rectifying module 2, the capacitor busbar 8 is connected with the capacitor module 4, and the inversion busbar 9 is connected with the inversion module 3.

Specifically, the rectifying busbar 7 is parallel to the side wall of the frequency conversion box body 1, the rectifying busbar 7 is perpendicular to the inverting busbar 9, and the inverting busbar 9 and the capacitor busbar 8 are in the same plane. In this embodiment, since the modules have a vertical relationship, the rectifying busbar 7, the inverting busbar 9 and the capacitor busbar 8 of this embodiment do not need to be bent, and have a simple structure, so that the production cost is reduced.

Specifically, the rectifying busbar 7 is provided with a rectifying electrode 10, and the rectifying electrode 10 is perpendicular to the rectifying busbar 7 to be connected with the inverting busbar 9 and the capacitor busbar 8. The inverter busbar 9 is provided with an inverter electrode 11, the capacitor busbar 8 is provided with a capacitor electrode 12, and the capacitor electrode 12 is connected with the inverter electrode 11 and the rectifying electrode 10. In the present embodiment, the connection relationship among the rectifying electrode 10, the inverting electrode 11, and the capacitor electrode 12 is not particularly limited, and may be set by those skilled in the art according to practical situations.

In this embodiment, at least two groups of module assemblies are disposed in the frequency conversion box 1, and the two groups of modules are separated by a partition 13.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.

Claims

1. A mining transducer, comprising: the variable frequency box body (1), and set up module assembly and range upon range of female arranging in variable frequency box body (1), module assembly includes rectifier module (2), contravariant module (3) and electric capacity module (4), rectifier module (2) and contravariant module (3) set up on the lateral wall of variable frequency box body (1), electric capacity module (4) set up on the bottom surface of variable frequency box body (1), rectifier module (2), contravariant module (3) and electric capacity module (4) are connected through range upon range of female arranging of range upon range of.

2. The mining frequency converter according to claim 1, characterized by further comprising a mounting plate (5), the mounting plate (5) being connected with the side wall of the frequency conversion box (1), the rectifying module (2) and the inverting module (3) being arranged on the mounting plate (5).

3. The mining frequency converter of claim 1, further comprising: the supporting seat (6), the supporting seat (6) is arranged on the bottom surface of the frequency conversion box body (1), and the capacitor module (4) is arranged on the supporting seat (6).

4. A mining frequency converter according to claim 3, characterized in that the inverter module (3) is arranged in the vertical direction above the capacitor module (4) and the rectifier module (2).

5. The mining frequency converter according to any one of claims 1-4, wherein the laminated busbar includes: the power supply device comprises a rectifying busbar (7), a capacitor busbar (8) and an inversion busbar (9), wherein the rectifying busbar (7) is connected with a rectifying module (2), the capacitor busbar (8) is connected with a capacitor module (4), and the inversion busbar (9) is connected with an inversion module (3).

6. The mining frequency converter according to claim 5, characterized in that the rectifying busbar (7) is perpendicular to the inverting busbar (9), the inverting busbar (9) being in the same plane as the capacitive busbar (8).

7. The mining frequency converter according to claim 6, characterized in that the rectifying busbar (7) is parallel to the side walls of the frequency converter box (1).

8. The mining frequency converter according to claim 7, characterized in that rectifying electrodes (10) are arranged on the rectifying busbar (7), and the rectifying electrodes (10) are perpendicular to the rectifying busbar (7) so as to be connected with the inverting busbar (9) and/or the capacitor busbar (8).

9. The mining frequency converter according to claim 8, characterized in that an inversion electrode (11) is arranged on the inversion busbar (9), a capacitance electrode (12) is arranged on the capacitance busbar (8), and the capacitance electrode (12) and the inversion electrode (11) are connected with the rectification electrode (10).

10. A mining frequency converter according to claim 1, characterized in that at least two groups of said module assemblies are arranged in the frequency conversion box (1), the two groups of said modules being separated by a partition (13).