Sandwich panel joint assembly for a wind turbine

Patent metadata

Field	Value
Publication number	US-9682517-B2
Application number	US-201414210735-A
Country	US
Kind code	B2
Filing date	Mar 14, 2014
Priority date	Mar 14, 2014
Publication date	Jun 20, 2017
Grant date	Jun 20, 2017

Abstract

A sandwich panel joint assembly for a nacelle of a wind turbine and method of manufacturing same is disclosed. The method includes forming at least one groove into a core structure. A next step includes inserting at least one fastener element within the groove such that the fastener element is recessed within the core structure. The method also includes placing the core structure containing the fastener element into a mold. A next step includes inserting a resin material into the mold to at least partially surround the core structure, wherein a portion of the fastener element becomes embedded within the resin material. The resin material is then allowed to cure so as to form a plurality of panel members that surround the core structure. As such, the fastener element is recessed within the core structure and molded into one of the cured panel members.

First claim

What is claimed is:

1. A nacelle for a wind turbine, the nacelle comprising:
a base shell member configured for mounting atop a tower of the wind turbine, said base shell member comprising a side shell wall;
a top shell member configured atop said side shell wall, said top shell member comprising at least one sandwich panel, said sandwich panel comprising a plurality of panel members surrounding a core structure; and,
a joint assembly coupling the top shell member to the base shell member, said joint assembly comprising at least one female connection element and at least one male connection element, the female connection element being at least partially recessed within the core structure of the top shell member and molded into one of the panel members,
wherein the male connection element engages the female connection element so as to couple the base shell member to the top shell member.

2. The nacelle of claim 1 , wherein the female connection element further comprises a tee nut, the tee nut comprising a flange and an outwardly extending body, wherein the body comprises a threaded internal hole.

3. The nacelle of claim 1 , wherein the male connection member comprises at least one of a threaded fastener, a rivet, or a dowel pin.

4. The nacelle of claim 1 , further comprising a support plate recessed within the core structure between the female connection element and one of the panel members, wherein the support plate comprises at least one opening, wherein a body of the female connection element is inserted into the opening of the support plate and through one of the panel members.

5. The nacelle of claim 1 , wherein the joint assembly further comprises one or more L-supports configured with the base shell member and the top shell member, the L-supports configured to provide support to the joint assembly during installation.

Assignees

• Gen Electric

Inventors

• Leland Kenneth Bradley

Classifications

• B29K2309/08

  Glass · CPC title

• B29C70/682

  Preformed parts characterised by their structure, e.g. form · CPC title

• Y02P70/523

  Cross-Sectional Technologies · mapped topic

• F01D25/243

  Flange connections; Bolting arrangements (F01D25/265 takes precedence) · CPC title

• F03D1/0675

  of the blades · CPC title