Electric power transmission carrier, manufacturing process thereof and enclosure

Patent metadata

Field	Value
Publication number	US-11349286-B2
Application number	US-201715776172-A
Country	US
Kind code	B2
Filing date	Aug 24, 2017
Priority date	Oct 18, 2016
Publication date	May 31, 2022
Grant date	May 31, 2022

Abstract

An electric power transmission carrier and a manufacturing method of the electric power transmission carrier and an enclosure are provided. The electric power transmission carrier includes an enclosure and an electric power transmission cable mounted on the enclosure. The electric power transmission cable is in direct or indirect surface contact with an inner wall of the enclosure, and the enclosure functions as a heat sink of the electric power transmission cable. In the present application, the electric power transmission cable or the conductor is mounted on the enclosure such as a tower barrel or a high tower, to perform electric power transmission and take the enclosure as a heat sink. The electric power transmission component takes the enclosure, the “heat sink” having a huge thermal capacity, as a “cold source”.

First claim

The invention claimed is:

1. An electric power transmission carrier, comprising an enclosure and a plurality of electric power transmission components mounted on the enclosure, wherein the enclosure comprises a tower of a wind turbine generator system, an exterior wall of a television tower, a shell of a water surface vehicle, a shell of an underwater vehicle, or a shell of an aviation vehicle, and mass of the enclosure is greater than mass of the plurality of electric power transmission components; each of the electric power transmission components is located inside a body of the enclosure, and is in direct or indirect surface contact with the enclosure, and the enclosure acts as a heat sink for the power transmission components;
wherein an inner wall of the enclosure is provided with a plurality of conductor slots, each of the electric power transmission components is laid in a corresponding conductor slot of the conductor slots, or a wall body of the enclosure is provided with a plurality of through holes, and each of the electric power transmission components is inserted in a corresponding through hole of the through holes;
wherein a gap between the electric power transmission component and the corresponding conductor slot or between the electric power transmission component and the corresponding through hole is filled with a cured layer formed by an impregnation liquid after being cured, and the cured layer and the conductor slot constitute a thermal conductive bridge; and wherein
a reinforcing material layer is further provided, the reinforcing material layer covers a slot opening of the conductor slot, and the reinforcing material layer is impregnated with the impregnation liquid.

2. The electric power transmission carrier according to claim 1 , wherein a conductor of the electric power transmission component is laid in the conductor slot or the through hole, a gap between the conductor and the conductor slot or between the conductor and the through hole is filled with a cured layer formed by an impregnation liquid after being cured, and the cured layer is a insulation layer of the power transmission component.

3. The electric power transmission carrier according to claim 2 , wherein a vacuum bag is laid outside the conductor slot, to establish a vacuum environment of the conductor slot, and the impregnation liquid is injected into a gap between the electric power transmission cable and the conductor slot or between the conductor and the conductor slot by vacuum suction; and in curing, the impregnation liquid is cured by at least one of a microwave heating device, a radio-frequency heating device, a far infrared heating device and an electric heating device; and
wherein, the insulation layer is formed by an ultrasonically assisted liquid impregnation molding process; and/or
the conductor is wrapped or wound with continuous fibers or discontinuous fibers, to allow the formed insulation layer to contain the continuous fibers or the discontinuous fibers; and/or
a wedge is provided at the slot opening of the conductor slot to block the slot opening.

4. The electric power transmission carrier according to claim 1 , wherein thermal conductive ribs are provided on the inner wall of the enclosure and protrude from the inner wall of the enclosure, and the conductor slot is formed between the thermal conductive ribs adjacent to each other; and the thermal conductive ribs are each provided with a plurality of notches in a length direction, and the electric power transmission component is formed with a flexible tension resistant segment at each of the notches.

5. The electric power transmission carrier according to claim 1 , wherein the electric power transmission components are mounted at equal intervals in a circumferential direction of the enclosure, or the electric power transmission components are only mounted at a shady side of the enclosure; and/or
a conductor of each of the electric power transmission components is a hollow conductor, and has a plurality of through holes extending in a length direction thereof.

6. The electric power transmission carrier according to claim 1 , wherein the enclosure is entirely made of a metal material or a non-metal material, or the enclosure has a lower part made of a non-metal material and an upper part made of a metal material.

7. An enclosure, wherein the enclosure comprises a tower of a wind turbine generator system, an exterior wall of a television tower, a shell of a water surface vehicle, a shell of an underwater vehicle, or a shell of an aviation vehicle; a thermal conductive bridge for carrying a plurality of electric power transmission components and conducting heat generated by the electric power transmission components to the enclosure is provided on an inner wall of the enclosure, the thermal conductive bridge allows the electric power transmission cables to be in direct or indirect surface contact with the inner wall of the enclosure, mass of the enclosure is greater than mass of the plurality of electric power transmission components, and the enclosure functions as a heat sink for the power transmission components;
wherein the thermal conductive bridge comprises thermal conductive ribs protruding from a surface of the inner wall of the enclosure, and a conductor slot configured to mount each of the electric power transmission components is formed between the thermal conductive ribs adjacent to each other;
wherein a gap between the electric power transmission component and the corresponding conductor slot is filled with a cured layer formed by an impregnation liquid after being cured; and

wherein
a reinforcing material layer is further provided, the reinforcing material layer covers a slot opening of the conductor slot, and the reinforcing material layer is impregnated with the impregnation liquid.

8. The enclosure according to claim 7 , wherein the thermal conductive bridge is fixed to the inner wall of the enclosure by a mechanical fixing means, or is pre-formed on the inner wall of the enclosure.

9. The enclosure according to claim 7 , wherein each of the electric power transmission components comprises an electric power transmission cable,
the thermal conductive bridge has a connecting surface connected to the inner wall of the enclosure and a thermal conductive arc surface configured to mount the electric power transmission cable;
or, the thermal conductive bridge comprises an arc-shaped thermal conductive recess extending from the inner wall of the enclosure.

Assignees

• Beijing Goldwind Science & Creation Windpower Equipment Co Ltd

Inventors

• Ma Shengjun
• Ma Wanshun

Classifications

• H02G3/32

  using mounting clamps · CPC title

• H02G3/30

  Installations of cables or lines on walls, floors or ceilings · CPC title

• H02G3/0456

  Ladders or other supports · CPC title

• H02G3/03 Primary

  Cooling · CPC title

• Y02E10/72

  Wind turbines with rotation axis in wind direction · CPC title