【特許請求の範囲】
【請求項１】 集熱フィンに設けられた長手方向に延びる一対のかしめ片間に管体を収容し、前記かしめ片を当該管体側へ曲げ変形させて、当該管体と前記集熱フィンとをかしめ結合した太陽熱集熱エレメントにおいて、
前記集熱フィンと前記管体とのかしめ結合部の少なくとも１ヶ所に当該かしめ結合部の結合強度より強度の高い強結合部を形成したことを特徴とする太陽熱集熱エレメント。
【請求項２】 集熱フィンに設けられた長手方向に延びる一対のかしめ片間に管体を収容し、前記かしめ片を当該管体側へ曲げ変形させて、当該管体と前記集熱フィンとをかしめ結合した太陽熱集熱エレメントにおいて、
前記集熱フィンと前記管体とのかしめ結合部のうちの当該管体を流れる流体温度の低い部分に当該かしめ結合部の結合強度より強度の高い強結合部を形成したことを特徴とする太陽熱集熱エレメント。
【請求項３】 前記強結合部は、前記かしめ結合部を前記管体の管軸と略直行する方向に深くかしめて形成されていることを特徴とする請求項１または２記載の太陽熱集熱エレメント。
【請求項４】 前記管体に対して複数枚の集熱フィンが組み付けられ、管体を流れる流体の出口側に組み付けられた集熱フィンでは、この集熱フィンへの流体の入口側に近い部分に前記強結合部が形成され、管体を流れる流体の入口側に組み付けられた集熱フィンでは、この集熱フィンからの流体の出口側に近い部分に前記強結合部が形成されていることを特徴とする請求項１ないし３のいずれか一項記載の太陽熱集熱エレメント。
【請求項５】 集熱フィンに設けられた長手方向に延びる一対のかしめ片間に管体を収容し、前記かしめ片を当該管体側へ曲げ変形させて、当該管体と前記集熱フィンとをかしめ結合した太陽熱集熱エレメントを備えた太陽熱集熱装置において、
前記管体と前記集熱フィンとのかしめ結合部の少なくとも１ヶ所に当該かしめ結合部の結合強度より強度の高い強結合部を形成したことを特徴とする太陽熱集熱装置。
【請求項６】 前記強結合部は、前記かしめ結合部を前記管体の管軸と略直行する方向に深くかしめて形成されていることを特徴とする請求項４記載の太陽熱集熱装置。
[Claims]
1. A pipe body is housed between a pair of crimped pieces extending in the longitudinal direction provided on a heat collecting fin, and the crimped piece is bent and deformed toward the pipe body side to form a pipe body and the heat collecting fin. In the solar heat collecting element that is caulked and coupled
A solar heat collecting element characterized in that a strong coupling portion having a strength higher than the coupling strength of the caulking joint portion is formed at at least one position of the caulking joint portion between the heat collecting fin and the tube body.
2. A pipe body is housed between a pair of caulking pieces extending in the longitudinal direction provided on a heat collecting fin, and the crimped piece is bent and deformed toward the pipe body side to form a pipe body and the heat collecting fin. In the solar heat collecting element that is caulked and coupled
Solar heat characterized in that a strong coupling portion having a strength higher than the coupling strength of the caulking joint portion is formed in a portion of the caulking joint portion between the heat collecting fin and the tube body where the fluid temperature flowing through the tube body is low. Heat collecting element.
3. The solar heat collecting portion according to claim 1 or 2, wherein the strong coupling portion is formed by deeply caulking the caulking joint portion in a direction substantially perpendicular to the tube axis of the tube body. element.
4. A plurality of heat collecting fins are assembled to the pipe body, and in the heat collecting fins assembled on the outlet side of the fluid flowing through the pipe body, the strong coupling is made to the portion close to the inlet side of the fluid to the heat collecting fins. The heat collecting fins formed with the portions and assembled to the inlet side of the fluid flowing through the pipe body are characterized in that the strong coupling portion is formed in a portion close to the outlet side of the fluid from the heat collecting fins. The solar heat collecting element according to any one of claims 1 to 3.
5. A tube body is housed between a pair of caulking pieces extending in the longitudinal direction provided on the heat collecting fins, the caulking pieces are bent and deformed toward the tube body side, and the tube body and the heat collecting fins are caulked and coupled to each other. In a solar heat collector equipped with a heat collecting element,
A solar heat collecting device characterized in that a strong coupling portion having a strength higher than the coupling strength of the caulking joint portion is formed at at least one position of the caulking joint portion between the tube body and the heat collecting fin.
6. The solar heat collecting device according to claim 4, wherein the strong coupling portion is formed by deeply caulking the caulking joint portion in a direction substantially perpendicular to the tube axis of the tube body.
請求項４記載の発明は、前記管体に対して複数枚の集熱フィンが組み付けられ、管体を流れる流体の出口側に組み付けられた集熱フィンでは、この集熱フィンへの流体の入口側に近い部分に前記強結合部が形成され、管体を流れる流体の入口側に組み付けられた集熱フィンでは、この集熱フィンからの流体の出口側に近い部分に前記強結合部が形成されていることを特徴とするものである。
In the invention according to claim 4 , a plurality of heat collecting fins are assembled to the pipe body, and in the heat collecting fins assembled to the outlet side of the fluid flowing through the pipe body, the inlet of the fluid to the heat collecting fins. The strong coupling portion is formed in a portion close to the side, and in the heat collecting fin assembled on the inlet side of the fluid flowing through the pipe body, the strong coupling portion is formed in the portion near the outlet side of the fluid from the heat collecting fin. It is characterized by being done.
また、請求項５記載の発明は、集熱フィンに設けられた長手方向に延びる一対のかしめ片間に管体を収容し、前記かしめ片を当該管体側へ曲げ変形させて、当該管体と前記集熱フィンとをかしめ結合した太陽熱集熱エレメントを備えた太陽熱集熱装置において、前記管体と前記集熱フィンとのかしめ結合部の少なくとも１ヶ所にほかのかしめ結合部よりも結合強度の高い強結合部を形成したことを特徴とするものである。
請求項５記載の発明では、かしめ結合部の少なくとも１ヶ所に結合強度の高い強結合部を形成したので、高温状態下において時間の経過と共に、かしめ結合全体にゆるみが生じたとしても、当該１ヶ所の強結合部が固定点となるので、集熱フィンの長手方向への移動を防止することができる。
Further, according to the fifth aspect of the present invention, the tubular body is housed between a pair of caulking pieces extending in the longitudinal direction provided in the heat collecting fin, and the caulking piece is bent and deformed toward the tubular body to form the tubular body. In a solar heat collecting device provided with a solar heat collecting element in which the heat collecting fins are caulked, the bonding strength is higher than that of other caulking joints at at least one of the caulking joints between the tube and the heat collecting fins. It is characterized by forming a high strong coupling portion.
In the invention according to claim 5 , since a strong bond having a high bond strength is formed at at least one of the caulking joints, even if the entire caulking bond becomes loose with the passage of time in a high temperature state, the 1 Since the strong coupling portions at the locations serve as fixed points, it is possible to prevent the heat collecting fins from moving in the longitudinal direction.
請求項６記載の発明は、請求項４記載のものにおいて、前記強結合部は、前記かしめ結合部を前記管体の管軸と略直行する方向に深くかしめて形成されていることを特徴とするものである。
The invention according to claim 6 is characterized in that, in the invention according to claim 4, the strong coupling portion is formed by deeply caulking the caulking coupling portion in a direction substantially perpendicular to the tube axis of the tube body. It is something to do.