CN218498387U - Connecting device of converter - Google Patents
Connecting device of converter Download PDFInfo
- Publication number
- CN218498387U CN218498387U CN202222409140.7U CN202222409140U CN218498387U CN 218498387 U CN218498387 U CN 218498387U CN 202222409140 U CN202222409140 U CN 202222409140U CN 218498387 U CN218498387 U CN 218498387U
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- Prior art keywords
- connecting piece
- connection
- arm
- converter
- piece
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 38
- 229910052802 copper Inorganic materials 0.000 claims description 38
- 239000010949 copper Substances 0.000 claims description 38
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000010009 beating Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 229920001342 Bakelite® Polymers 0.000 description 3
- 239000004637 bakelite Substances 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Dc-Dc Converters (AREA)
Abstract
The utility model provides a connecting device of converter, including first connecting piece and second connecting piece, first connecting piece includes the connection piece and sets up the link at the connection piece tip, the second connecting piece includes first linking arm and second linking arm, first connecting piece the link is with the second connecting piece first linking arm links to each other. The utility model discloses an among the connecting device of converter, first connecting piece one end adopts "oneself" shape design of buckling, carries out the overlap joint with the second connecting piece at the junction of buckling and links to each other to the displacement of restriction second connecting piece. Adopt this kind of connected mode can avoid the connection of kneck bolt for the bolt fastening is beaten to the connection of first connecting piece and second connecting piece does not need two opening in addition, and the biggest current-carrying capacity of sheetmetal is ensured to the area of contact that can effectual increase sheetmetal junction, and the bolt-free fixed can also significantly reduce the artifical assemble duration of beating the bolt, and then improves production efficiency.
Description
Technical Field
The utility model belongs to the technical field of connecting device, especially, relate to a connecting device of converter.
Background
A converter is an electrical device that varies the voltage, frequency, number of phases, and other electrical quantities or characteristics of a power system. In practical applications, there are occasions where it is necessary to change an ac power supply into a dc power supply, which is a rectifier circuit. In some cases, it is necessary to change the dc power into ac power, and this reverse process corresponding to rectification is defined as an inverter circuit. Under certain conditions, the thyristor circuit can be used as a rectifying circuit and an inverter circuit, and the device is called a converter.
In high power converters, the current conduction is mainly achieved by means of copper sheets. The current that high-power converter need bear is bigger, reaches several hundred amperes, selects for use the cable wiring to need to use very thick sinle silk, and the sinle silk is too big to lead to the cable too hard, can't buckle basically, hardly plans the distribution in space. Therefore, in order to effectively utilize the space of the converter cabinet, at the beginning of designing the cabinet, enough electrical gap space for preventing electromagnetic interference needs to be reserved, related electronic components need to be arranged compactly as much as possible, and the current and voltage values of the high-power electronic components cannot be met by common cables which can be bent easily.
The converter selects the copper sheet as a current conductor, the fixation of the copper sheet in the converter is firm and reliable, and the copper sheet is limited to rotate, so that the joint of the copper sheet and the copper sheet is generally fixed by adopting a double-hole bolt fixing mode or limited by using external materials such as insulators and bakelite. As shown in fig. 1, in order to fix a copper sheet, which is a common fixing method for a high-power converter in the prior art, the joint between the copper sheet and the copper sheet needs to be limited and fixed in a form of double openings. The double-hole bolt fixing mode of the copper sheet in the converter has the following defects: when the copper sheet is fixedly connected in the converter, the rotation of the copper sheet is limited, a single hole cannot be used, and the degree of freedom of the copper sheet is limited by the design of double holes; due to the double-opening design, excessive material (red copper) at the fastening part can be removed, so that the sectional area is reduced, and the current-carrying capacity of the copper sheet is lower than a preset value; due to the fact that each copper sheet adopts the double-opening design, the bolt fixing amount is too large, a large amount of time is consumed for fixing the bolt and the nut by hands, and the production efficiency is greatly reduced; the fixing mode of the insulator and the bakelite can increase the production cost, and the use in many scenes is limited, and extra bolt fixing quantity can be increased, and the bolt fixing reliability is low.
On one hand, the copper sheet is fixed by the double-hole bolt, a large amount of manpower resources are needed to be spent during assembly, all bolt fixing points need to be manually screwed with fixing bolts and nuts, the assembly of one converter is spent on screwing the bolts in 60% of time, and the production efficiency is greatly limited. In addition, the fixing method using the bolt is not a long-term reliable fixing method, the area of the hole removed by the bolt fixing method with double holes is too large, and the joint of the copper sheet and the copper sheet may not meet the expectation due to too small current carrying capacity of the contact surface. On the other hand, if the insulator and the bakelite are fixed, the production cost is greatly increased, and the sizes of the materials are in a certain range, so that the use of the materials in many scenes is limited.
Therefore, in order to solve some problems of the bolt fixing method for the copper sheet of the high-power converter, a bolt-free fixing method for the copper sheet needs to be designed in the field to improve the fixing method for the copper sheet of the converter at the present stage.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a technical scheme provides a connecting device of converter.
The utility model provides a connecting device of converter, includes first connecting piece and second connecting piece, first connecting piece includes the connection piece and sets up the link at the connection piece tip, the second connecting piece includes first linking arm and second linking arm, first connecting piece the link with the second connecting piece first linking arm links to each other.
Furthermore, the connecting end of the first connecting piece is a bent connecting end, a connecting cavity is formed in the bent connecting end, and the first connecting arm is embedded into the connecting cavity and connected with the first connecting piece.
Furthermore, the bent connecting end of the first connecting piece is U-shaped.
Further, the connecting cavity is matched with the end part of the first connecting arm in shape and size.
Further, the connecting cavity is cuboid, and the width, the length and the thickness of the connecting cavity are the same as those of the end part of the first connecting arm.
Further, the second connecting piece comprises a twisted portion, and a plane where the body of the first connecting arm is located intersects with a plane where the body of the second connecting arm is located.
Furthermore, the twisting part is arranged on the first connecting arm, and after the end part of the first connecting arm is embedded into the connecting cavity, the twisting part is abutted against the outer edge of the bent connecting end of the first connecting piece.
Further, the second connecting piece is L-shaped.
Furthermore, a connecting hole is formed in the connecting piece, and a connecting hole is formed in the second connecting arm and/or the first connecting arm.
Further, the first connecting piece and the second connecting piece are both copper connecting pieces.
The utility model discloses an among the connecting device of converter, first connecting piece one end adopts "oneself" shape design of buckling, carries out the overlap joint with the second connecting piece at the connecting end department of buckling and links to each other, and the open-ended structural shape of the connecting end of buckling can match the tip of the first connecting arm of second connecting piece and clip the tip package of first connecting arm to the displacement of restriction second connecting piece. Adopt this kind of connected mode can avoid the connection of kneck bolt for the connection of first connecting piece and second connecting piece does not need two opening in addition to beat the bolt fastening, can the area of contact of effectual increase sheetmetal junction, thereby guarantee the biggest current-carrying capacity of sheetmetal, exempt from the fixed assembly time that can also the manual work of significantly reducing beat the bolt of bolt, and then improve production efficiency.
Drawings
The present invention will be described in more detail hereinafter based on embodiments and with reference to the accompanying drawings.
Fig. 1 is a schematic view of a connection structure of a flow guide metal sheet in a converter in the prior art.
Fig. 2-3 are schematic structural diagrams of a first connecting member in the connecting device of the current transformer according to the present invention.
Fig. 4 is a schematic structural diagram of a second connecting member in the connecting device of the current transformer of the present invention.
Fig. 5 is a schematic structural diagram of the converter according to the present invention after the first connecting member and the second connecting member are assembled.
Fig. 6-7 are schematic diagrams illustrating the practical installation and use structure of the connection device of the current transformer of the present invention.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 2 to 5, for the utility model discloses a connecting device of converter, including first connecting piece 10 and second connecting piece 20, first connecting piece 10 and second connecting piece 20 are the copper sheet in the converter promptly, according to the converter needs in addition, also can adopt other metal material, first connecting piece 10 includes connection piece 11 and the link 12 of buckling that sets up at connection piece 11 tip, the inside of the link 12 of buckling is for connecting cavity 121, still can set up the connecting hole on the connection piece 11 to be connected with other spare parts of converter. The second connecting member 20 is L-shaped and includes a first connecting arm 21 and a second connecting arm 22, and the first connecting arm 21 and/or the second connecting arm 22 of the second connecting member 20 have connecting holes for connecting with other parts of the converter.
The bent connecting end 12 of the first connecting member 10 is connected to the first connecting arm 21 of the second connecting member 20, that is, the first connecting arm 21 of the second connecting member 20 is embedded into the connecting cavity 121 of the bent connecting end 12 of the first connecting member 10 for connection, so that the fixing without bolts is realized. The spatial dimension of the connection cavity 121 of the bent connection end 12 is equivalent to the dimension of the first connection arm 21, for example, the shape of the connection cavity 121 of the bent connection end 12 is substantially rectangular, the width, length and thickness of the connection cavity 121 are equivalent to those of the connection end of the first connection arm 21, the structural shape of the connection cavity 121 of the bent connection end 12 can clamp the first connection arm 21 of the second connection member 20, and the bottom wall of the connection cavity 121 of the bent connection end 12 opposite to the opening can limit the displacement of the first connection arm 21 of the second connection member 20, so that the first connection arm 21 of the second connection member 20 can only be disengaged along the opening direction of the connection cavity 121.
The second connecting member 20 preferably includes a twisted portion 23, the twisted portion 23 may be disposed on the first connecting arm 21 or the second connecting arm 22, and a plane of the body of the first connecting arm 21 of the second connecting member 20 is not parallel to a plane of the body of the second connecting arm 22, and is preferably perpendicular to the plane. Preferably, the twisted portion 23 is disposed on the first connecting arm 21, and after the connecting end of the first connecting arm 21 is inserted into the connecting cavity 121 of the bent connecting end 12, the twisted portion 23 abuts against the outer edge of the bent connecting end 12.
The first connecting piece 10 and the second connecting piece 20 made of copper materials can avoid connection of bolts at the joint positions by adopting the connecting mode, so that the copper sheets do not need to be additionally screwed with bolts in double holes, the contact area of the joint positions of the copper sheets can be effectively increased, the maximum current-carrying capacity of the copper sheets is ensured, the manual bolt-tightening assembling time can be greatly shortened by the aid of bolt-free fixation, and further the production efficiency is improved.
As shown in fig. 6 to 7, for the utility model discloses a practical installation effect diagram of the connecting device of converter, the utility model discloses an in the connecting device's of converter installation, fix the position of first connecting piece 10 earlier, for example link to each other first connecting piece 10 and converter subassembly earlier, then insert the first linking arm 21 of second connecting piece 20 from one end in the connection cavity 121 of the buckle link 12 of first connecting piece 10, the second linking arm 22 of second connecting piece 20 is fixed to the converter subassembly through the bolt after adjusting to suitable position through the fore-and-aft movement again, the connection cavity 121 of the buckle link 12 of installation can be moved second connecting piece 20 along the fore-and-aft direction and the left direction of connecting cavity 121 spacing, also only allow the first linking arm 21 of second connecting piece 20 can only be thrown off along the opening direction of connecting cavity 121, and then make second connecting piece 20 can's the half open structure of the buckle link 12 of first connecting piece 10 of throwing off. The high-power converter adopts the structure as a copper sheet connection mode, so that complicated bolt beating work can be avoided, the production efficiency is improved, and the cabinet body is convenient to maintain in the later period.
The utility model discloses a connecting device of converter, be the first connecting piece 10 of "oneself" type structure through designing one end, make the first connecting piece 10 of copper demonstrate half open-ended U-shaped connection end structure at the tip, only allow the installation connected mode of folk prescription to the removal on the perpendicular of U-shaped connection end, another copper sheet inserts at this ascending open position of vertical direction, the connection piece 11 of the first connecting piece 10 other end links to each other with other devices of converter, the second linking arm 22 of second connecting piece 20 is fixed mutually with other devices of converter, thereby lock first connecting piece 10 and the connection of second connecting piece 20, also be about to the first linking arm 21 of second connecting piece 20 and also lock along the opening direction disjointed degree of freedom of connecting cavity 121, thereby realize that first connecting piece 10 and second connecting piece 20 link to each other and do not throw off. Compared with a traditional bolt fixing mode, the mode of connecting the copper sheet structures can avoid the problem that the current-carrying capacity cannot reach a preset value due to the fact that the copper sheets need to be limited and a double-opening design is adopted during traditional bolt fixing, two bolt holes are cut in the copper sheet structures with cross sections of only 20-30mm in width, the removed area is larger than the remaining area, the local cross section area of the material is insufficient, the maximum current-carrying capacity at the same temperature can be reduced, the current-carrying capacity of the copper sheets is inconsistent with a preset design value, and finally the converter cannot reach the design value of the maximum working condition. The connection positions of a plurality of copper sheets in the converter can be replaced by the installation mode without the bolts, the installation mode without the bolts can greatly reduce human resources, and the production efficiency is improved. In addition, the fixing mode of adopting the bolt is not a long-term reliable fixing mode, and the emergence of the condition such as workman forget tighten, do not beat the moment, bolt material not up to standard, too big permanent atress of moment is invalid can take place to also be convenient for maintain later stage. The utility model discloses a copper sheet mounting structure of design uses on the converter, has avoided some problems that current double bolt fixed mode may lead to, can greatly improve production efficiency moreover, makes things convenient for the maintenance in later stage.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. The connecting device of the converter is characterized by comprising a first connecting piece and a second connecting piece, wherein the first connecting piece comprises a connecting piece and a connecting end arranged at the end part of the connecting piece, the second connecting piece comprises a first connecting arm and a second connecting arm, and the connecting end of the first connecting piece is connected with the first connecting arm of the second connecting piece.
2. The connecting device for the current transformer according to claim 1, wherein the connecting end of the first connecting member is a bent connecting end, the bent connecting end has a connecting cavity therein, and the first connecting arm is inserted into the connecting cavity and connected to the first connecting member.
3. The connecting device for a current transformer according to claim 2, wherein the bent connection end of the first connecting member is U-shaped.
4. The converter connection device according to claim 2, wherein the connection cavity is shaped and dimensioned to fit the end of the first connection arm.
5. The connecting device for a current transformer of claim 4, wherein the connecting cavity has a rectangular parallelepiped shape, and the width, length and thickness of the connecting cavity are the same as those of the end portion of the first connecting arm.
6. The connecting device for a converter according to claim 2, wherein the second connecting member comprises a twisted portion, and a plane of the body of the first connecting arm intersects a plane of the body of the second connecting arm.
7. The connecting device for a converter according to claim 6, wherein the twisted portion is disposed on the first connecting arm, and after the end of the first connecting arm is inserted into the connecting cavity, the twisted portion abuts against an outer edge of the bent connecting end of the first connecting member.
8. The connecting device of a current transformer according to claim 1, wherein the second connecting member is L-shaped.
9. The connecting device for a converter according to claim 1, wherein the connecting piece is provided with a connecting hole, and the second connecting arm and/or the first connecting arm is provided with a connecting hole.
10. The connection arrangement of a current transformer of claim 1, wherein said first and second connectors are copper connectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222409140.7U CN218498387U (en) | 2022-09-09 | 2022-09-09 | Connecting device of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222409140.7U CN218498387U (en) | 2022-09-09 | 2022-09-09 | Connecting device of converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218498387U true CN218498387U (en) | 2023-02-17 |
Family
ID=85190875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222409140.7U Active CN218498387U (en) | 2022-09-09 | 2022-09-09 | Connecting device of converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218498387U (en) |
-
2022
- 2022-09-09 CN CN202222409140.7U patent/CN218498387U/en active Active
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| GR01 | Patent grant |