CN210443671U - Aluminum alloy core lightning protection down-leading cable branch connecting pipe for wind power blade - Google Patents
Aluminum alloy core lightning protection down-leading cable branch connecting pipe for wind power blade Download PDFInfo
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- CN210443671U CN210443671U CN201921221202.3U CN201921221202U CN210443671U CN 210443671 U CN210443671 U CN 210443671U CN 201921221202 U CN201921221202 U CN 201921221202U CN 210443671 U CN210443671 U CN 210443671U
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- connecting pipe
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- branch connecting
- cable conductor
- cable
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Abstract
The utility model discloses a cable branch connecting pipe is drawn down in lightning protection of aluminum alloy core for wind-powered electricity generation blade, including branch connecting pipe, insert medium voltage cable conductor and branch cable conductor in one side respectively in the three tangent round hole in branch connecting pipe center, branch connecting pipe's opposite side inserts the low pressure leader cable conductor. The conductors of the medium-voltage cable, the branch cable and the low-voltage main cable are electrically connected with the branch connecting pipe, and are mutually overlapped and closely contacted, so that the reliability of electrical connection is obviously improved, the high-current conduction performance is better, and the workload of installation is reduced.
Description
Technical Field
The utility model relates to a cable branch connecting pipe is drawn down in lightning protection of aluminum alloy core for wind-powered electricity generation blade.
Background
Because the aluminum alloy cable is lighter than the copper core cable, the aluminum alloy cable is widely popularized and applied in a wind power blade lightning protection system. The early lightning protection system is designed to have only one low-voltage main cable from the blade tip to the blade root of the blade, and as the thickness of the upper part of the blade is gradually reduced, a discharging channel penetrating through a blade plate to puncture the cable insulation can be generated when lightning stroke occurs, so that the lightning stroke damage of the blade is caused.
The newly designed lightning protection system changes the medium-voltage cable from the first branch to the blade tip on the upper part of the blade, so that an intermediate joint of the medium-voltage cable and the low-voltage cable is added. The intermediate joint adopts a traditional connecting pipe, the conductor of the medium-voltage cable is not in direct contact with the conductor of the low-voltage cable, and the electrical connection is conducted through the pipe wall of the connecting pipe. The increase of the connector not only reduces the reliability of the lightning protection system, but also increases the installation workload.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model discloses a cable branch connecting pipe is drawn down in lightning protection of aluminum alloy core for wind-powered electricity generation blade.
The technical scheme of the utility model is that: the utility model provides a wind-powered electricity generation is cable branch connecting pipe down for blade aluminum alloy core lightning protection, includes the branch connecting pipe, inserts middling pressure cable conductor and branch cable conductor in three tangent round holes in branch connecting pipe center respectively on one side, and the opposite side of branch connecting pipe inserts the low pressure main cable conductor.
Further, the intermediate voltage cable conductor, the branch cable conductor and the low voltage main cable conductor are cut in common, and the lengths of the intermediate voltage cable conductor, the branch cable conductor and the low voltage main cable conductor inserted into the branch connection pipe are slightly shorter than the length of the branch connection pipe.
Furthermore, the branch connecting pipe is pressed around the medium-voltage cable conductor, the branch cable conductor and the low-voltage main cable conductor into a whole.
The utility model discloses an useful part: the medium voltage cable is connected with the branch cable and the low voltage main cable at the first branch, and the butt joint of the medium voltage cable and the low voltage main cable is eliminated. The conductors of the medium-voltage cable, the branch cable and the low-voltage main cable are electrically connected with the branch connecting pipe, and are mutually overlapped and closely contacted, so that the reliability of electrical connection is obviously improved, the high-current conduction performance is better, and the workload of installation is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention;
wherein: 1. medium voltage cable conductor, 2 branch cable conductor, 3 branch connecting pipe, 4 low voltage main cable conductor.
Detailed Description
In order to deepen the understanding of the present invention, the following detailed description is given with reference to the accompanying drawings, which are only used for explaining the present invention and do not constitute a limitation to the protection scope of the present invention.
As shown in fig. 1, a wind turbine blade is with cable branch connecting pipe down that lightning protection of aluminum alloy core is drawn, including branch connecting pipe 3, insert medium voltage cable conductor 1 and branch cable conductor 2 in three tangent round holes in branch connecting pipe 3 center respectively at one side, insert low pressure main cable conductor 4 in the opposite side of branch connecting pipe 3, cut between medium voltage cable conductor 1, branch cable conductor 2 and the low pressure main cable conductor 4 altogether, the length that medium voltage cable conductor 1 and branch cable conductor 2 and low pressure main cable conductor 4 insert in branch connecting pipe 3 is slightly shorter than the length of branch connecting pipe 2, branch connecting pipe 3 is through the confined pressure mode and is become an organic whole with medium voltage cable conductor 1 and branch cable conductor 2 and low pressure main cable conductor 4 confined pressure.
Claims (3)
1. The utility model provides a cable branch connecting pipe is drawn down in aluminum alloy core lightning protection for wind-powered electricity generation blade, includes branch connecting pipe, its characterized in that: the three tangent round holes in the center of the branch connecting pipe are respectively inserted with a medium-voltage cable conductor and a branch cable conductor at one side, and the other side of the branch connecting pipe is inserted with a low-voltage main cable conductor.
2. The aluminum alloy core lightning protection down cable branch connecting pipe for the wind power blade as recited in claim 1, wherein: the medium-voltage cable conductor, the branch cable conductor and the low-voltage main cable conductor are cut in common, and the lengths of the medium-voltage cable conductor, the branch cable conductor and the low-voltage main cable conductor which are inserted into the branch connecting pipe are slightly shorter than the length of the branch connecting pipe.
3. The aluminum alloy core lightning protection down cable branch connecting pipe for the wind power blade as recited in claim 1, wherein: the branch connecting pipe is integrated with the medium-voltage cable conductor, the branch cable conductor and the low-voltage main cable conductor in a surrounding and pressing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921221202.3U CN210443671U (en) | 2019-07-31 | 2019-07-31 | Aluminum alloy core lightning protection down-leading cable branch connecting pipe for wind power blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921221202.3U CN210443671U (en) | 2019-07-31 | 2019-07-31 | Aluminum alloy core lightning protection down-leading cable branch connecting pipe for wind power blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210443671U true CN210443671U (en) | 2020-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921221202.3U Active CN210443671U (en) | 2019-07-31 | 2019-07-31 | Aluminum alloy core lightning protection down-leading cable branch connecting pipe for wind power blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210443671U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114744463A (en) * | 2022-05-12 | 2022-07-12 | 江苏通光强能输电线科技有限公司 | Manufacturing process of copper-aluminum transition wiring terminal with high tensile strength |
-
2019
- 2019-07-31 CN CN201921221202.3U patent/CN210443671U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114744463A (en) * | 2022-05-12 | 2022-07-12 | 江苏通光强能输电线科技有限公司 | Manufacturing process of copper-aluminum transition wiring terminal with high tensile strength |
| CN114744463B (en) * | 2022-05-12 | 2023-12-15 | 江苏通光强能输电线科技有限公司 | Manufacturing process of copper-aluminum transition wiring terminal with high tensile strength |
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