CN215897568U

CN215897568U - Power module for transformation

Info

Publication number: CN215897568U
Application number: CN202121942796.4U
Authority: CN
Inventors: 沈亚林
Original assignee: Zhejiang Haide New Energy Co Ltd
Current assignee: Zhejiang Haide New Energy Co Ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-02-22
Anticipated expiration: 2031-08-18

Abstract

The utility model discloses a power module for transformation, which comprises a module mounting framework, a module mounting plate I, a module mounting plate II, a power module and a direct current bus; the power module for transformation is strong in universality, can be installed in cabinets with transversely arranged power modules and cabinets with longitudinally arranged power modules, and solves the technical problem that the transformation cost is increased because a large number of structural members are designed according to the type of a converter in each transformation of the power modules.

Description

Power module for transformation

Technical Field

The utility model belongs to the field of wind power generation, relates to an installation mode of a power module, and particularly relates to a power module structure for transformation, which can be installed in a cabinet with transversely arranged power modules and also can be installed in a cabinet with longitudinally arranged power modules.

Background

In recent years, the quality of the converter used in early domestic is guaranteed, the operation failure rate is high, and the power generation capacity and the stability of the power generation capacity are directly influenced. Based on the technical scheme, in order to enable the generated energy, the stability and the grid-connected condition of the converter to meet the requirements, a plurality of converter technical transformation businesses appear domestically, the power module is used as a core component of the converter, and the transformation frequency is very high.

For example, chinese patent No. cn201410290836.x, which discloses an electrical device and a power cabinet thereof, including a plurality of basic power cabinets connected in parallel; each basic power cabinet comprises a machine side power cabinet and a network side power cabinet connected with the machine side power cabinet in parallel; the machine side power cabinet and the grid side power cabinet of the same basic power cabinet are connected in parallel through a first electric connecting piece in a lap joint mode, and the first electric connecting piece is a laminated busbar or a copper bar; each two adjacent basic power cabinets are connected in parallel by lapping a second electrical connecting piece between the respective first electrical connecting pieces, and the second electrical connecting pieces are laminated busbars or copper bars; the machine side power cabinet and the network side power cabinet which are connected in parallel are used as basic power units of the electrical equipment power cabinet, a worker only needs to connect a plurality of basic power units in parallel in one electrical equipment, the power capacity expansion of the electrical equipment can be realized, and the power capacity value after the capacity expansion is the sum of the power capacity values of each basic power unit; only the power cabinet of one electrical device is modified, the design is simple, the manufacturing cost is low, each basic power unit is controlled by the control cabinet in the electrical device in a centralized manner, and the control difficulty is greatly reduced; it can be seen that module mounting structures in the converter power cabinet in the prior art are different, some power modules are arranged transversely, some power modules are arranged longitudinally, and therefore a large number of structural members need to be designed according to the type of the converter to mount the power modules during each power module transformation, so that the transformation cost is increased, and the transformation difficulty is increased.

In order to solve this problem, it is necessary to develop a power module structure for retrofitting that can be installed in a rack in which power modules are arranged in the horizontal direction and also in a rack in which power modules are arranged in the vertical direction.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a power module structure for reconstruction, and aims to solve the technical problems that the existing module mounting structures in a converter power cabinet are different, some power modules are transversely arranged, and some power modules are longitudinally arranged, so that a large number of structural members are designed according to the type of a converter to mount the power modules in each reconstruction of the power modules, and the reconstruction cost is increased.

The technical scheme adopted by the utility model is as follows: a power module for transformation structurally comprises a module mounting framework, a module mounting plate I, a module mounting plate II, a power module and a direct current bus; the two side surfaces of the module mounting framework are respectively provided with a plurality of module mounting plates I and a plurality of module mounting plates II at equal intervals, and the module mounting plates I and the module mounting plates II on the same height form a module mounting base;

the power modules are respectively arranged on the module mounting bases, wherein the bottom surfaces of the power modules are in contact with a first supporting surface on the first module mounting plate and a second supporting surface on the second module mounting plate, and threaded holes in the bottom surfaces of the power modules are matched with threaded holes in the first supporting surface and the second supporting surface and then are fixed through bolts; the power module rear side sheet metal face keeps off face one with 2 on the module mounting panel one and 2 on the module mounting panel two keep off face two contacts, and the screw hole passes through the bolt fastening after the screw hole cooperates on the power module rear side sheet metal face and keeps off face one and keep off face two.

Preferably, the number of the first module mounting plates and the number of the second module mounting plates are the same and are both greater than 2.

Preferably, the number of power modules and module mounting bases is the same, and both the number is greater than 2.

Preferably, the number of the module mounting plates I, the module mounting plates II and the power modules is 3.

Preferably, module installation skeleton both sides face is equipped with 4 horizontal mounting holes of module respectively, module installation skeleton bottom surface is equipped with the vertical mounting hole of 4 modules.

Preferably, the direct current end lead-out row of the power module is connected through a direct current adapter row by using bolts and nuts.

Preferably, the module installation framework is formed by welding nine-fold section beams.

Preferably, the power module is fixed with the converter cabinet in the horizontally arranged cabinet through a horizontal mounting hole on the side surface of the module mounting framework.

Preferably, the power module is fixed with the converter cabinet in the cabinet which is arranged in the longitudinal direction through a longitudinal mounting hole on the side surface of the module mounting framework.

After adopting the structure, the utility model has the beneficial effects that:

(1) the utility model has strong universality, can be installed in a cabinet with transversely arranged power modules and a cabinet with longitudinally arranged power modules, has high modularization degree, and can effectively reduce the reconstruction cost and the reconstruction difficulty.

(2) The power modules are modularly installed into a whole, the installation position precision of the power modules is high, the connection stress between the power modules is reduced, and the reliability of the modules can be effectively improved.

(3) The module mounting framework is formed by welding nine-fold section beams, the framework is high in strength, and the power module is fixed through the plurality of supporting surfaces and the connecting points, so that the structural stability is good.

Drawings

FIG. 1 is a first isometric view of a retrofit power module of the present invention;

FIG. 2 is a second isometric view of a retrofit power module of the present invention;

FIG. 3 is an assembly view of a portion of the components of the present invention;

FIG. 4 is an isometric view of a second module mounting plate of the present invention;

FIG. 5 is an isometric view of a first module mounting plate of the present invention;

FIG. 6 is a schematic view of the lateral installation of the present invention;

fig. 7 is a schematic view of the longitudinal installation of the present invention.

Description of reference numerals: 1. module installation skeleton, 2, module mounting panel one, 3, module mounting panel two, 4, power module, 5, direct current switching row, 6, the horizontal mounting hole of module, 7, the vertical mounting hole of module, 8, module mounting base, 9, holding surface two, 10, holding surface one, 11, keep off face two, 12, keep off face one.

Detailed Description

The present invention will be further described with reference to fig. 1-7 and the following detailed description; the following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the utility model. All falling within the scope of the present invention.

The utility model will be further described with reference to fig. 1-7 and the detailed description; the following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the utility model. All falling within the scope of the present invention.

Referring to fig. 1 to 5, the utility model provides a power module for reconstruction, which includes a module mounting framework 1, a module mounting plate one 2, a module mounting plate two 3, a power module 4 and a dc adapter bar 5; 1 both sides face of module erection skeleton is equidistant 3 module mounting panel one 2 and 3 module mounting panel two 3 respectively, and module mounting panel one 2 and module mounting panel two 3 on same height constitute 1 module mounting base 8.

The 3 power modules 4 are respectively installed on the 3 module installation bases 8, wherein the bottom surfaces of the power modules 4 are in contact with a first supporting surface 10 on the first module installation plate 2 and a second supporting surface 9 on the second module installation plate 3, and threaded holes in the bottom surfaces of the power modules 4 are matched with threaded holes in the first supporting surface 10 and the second supporting surface 9 and then are fixed through bolts; the rear side metal plate surface of the power module 4 is in contact with the first 2 blocking surfaces 12 on the first 2 module mounting plates and the second 11 blocking surfaces on the second 3 module mounting plates, and the threaded holes in the rear side metal plate surface of the power module 4 are matched with the first 12 blocking surfaces and the second 11 blocking surfaces through bolts.

Referring to fig. 3, two side surfaces of the module mounting framework 1 are respectively provided with 4 module transverse mounting holes 6, and the bottom surface of the module mounting framework 1 is provided with 4 module longitudinal mounting holes 7.

Referring to fig. 2, the dc terminal lead-out bars of 3 power modules 4 are connected by a dc connection bar 5 with bolts and nuts.

The module installation framework 1 is formed by welding nine-fold section beams, and the framework is high in strength.

Referring to fig. 6, in the cabinet in which the power modules are arranged in the transverse direction, the power modules of the present invention can be installed in the transverse direction and fixed to the converter cabinet through the transverse installation holes 6 on the side surface of the module installation frame 1.

Referring to fig. 7, the power modules are arranged in the cabinet in the longitudinal direction, and the power modules can be longitudinally installed and fixed with the converter cabinet through the longitudinal installation holes 7 on the bottom surface of the module installation framework 1.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or scope of the utility model as defined in the appended claims.

Claims

1. A power module for transformation is characterized by comprising a module mounting framework (1), a module mounting plate I (2), a module mounting plate II (3), a power module (4) and a direct current switching row (5); a plurality of module mounting plates I (2) and a plurality of module mounting plates II (3) are respectively arranged on two side surfaces of the module mounting framework (1) at equal intervals, and the module mounting plates I (2) and the module mounting plates II (3) on the same height form a module mounting base;

the power modules (4) are respectively installed on the module installation bases, wherein the bottom surfaces of the power modules (4) are in contact with a first supporting surface on the first module installation plate (2) and a second supporting surface on the second module installation plate (3), and threaded holes in the bottom surfaces of the power modules (4) are matched with threaded holes in the first supporting surface and the second supporting surface and then are fixed through bolts; the rear side metal plate surface of the power module (4) is in contact with the first 2 blocking surfaces on the first module mounting plate (2) and the second 2 blocking surfaces on the second module mounting plate (3), and the threaded holes in the rear side metal plate surface of the power module (4) are matched with the first blocking surfaces and the second blocking surfaces and then fixed through bolts.

2. A retrofit power module as set forth in claim 1 wherein the number of module mounting plates one (2) and module mounting plates two (3) is the same and is greater than 2.

3. A retrofit power module as claimed in claim 2, characterized in that the number of power modules (4) and module mounting bases is the same and is greater than 2.

4. A retrofit power module as claimed in claim 3, characterized in that the number of module mounting plates one (2), module mounting plates two (3) and power modules (4) is 3.

5. A retrofit power module as claimed in claim 4, characterized in that said module mounting frame (1) is provided with 4 module transverse mounting holes (6) on both sides thereof, respectively, and said module mounting frame (1) is provided with 4 module longitudinal mounting holes (7) on the bottom thereof.

6. A retrofit power module as claimed in any of the claims 1-5, characterized in that the direct current terminal lead-out row of the power module (4) is connected by a direct current direct row (5) with bolts and nuts.

7. A retrofit power module as claimed in any of the claims 1-5, characterized in that the module mounting skeleton (1) is welded from nine-fold profile beams.

8. A retrofit power module as claimed in any of claims 1-5, characterized in that the power module (4) is fixed to the converter cabinet in a horizontally arranged cabinet through a horizontal mounting hole (6) in the side of the module mounting frame (1).

9. A retrofit power module as claimed in any of claims 1-5, characterized in that the power module (4) is fixed to the converter cabinet in a longitudinally arranged cabinet through longitudinal mounting holes (7) in the sides of the module mounting skeleton (1).