JPS6428762U

JPS6428762U -

Info

Publication number: JPS6428762U
Application number: JP12302587U
Authority: JP
Priority date: 1987-08-11
Filing date: 1987-08-11
Publication date: 1989-02-20

Description

[Brief explanation of the drawing]

第１図ないし第６図は本考案の第１実施例を示
す。第１図は冷媒流入用配管および冷媒流出用配
管に継手部材およびボツクス型膨脹弁を接続する
際の斜視図、第２図は第１図の正面断面図、第３
図は本考案の冷媒蒸発器を適用した積層型冷媒蒸
発器に継手部材およびボツクス型膨脹弁を接続し
た際の正面図、第４図は管プレートの正面図、第
５図は管プレートを２枚組み合わせて構成する偏
平管の側面断面図、第６図は偏平管を積層状に組
み合わせた際の側面断面図、第７図は本考案の第
２実施例を示す継手部材の断面図、第８図は従来
の冷媒流入用配管および冷媒流出用配管と継手部
材との接続状態を示す断面図である。図中１……積層型冷媒蒸発器、１１……冷媒流
入用配管、１２……冷媒流出用配管、１５……板
状継手部材、１６……ボツクス型膨脹弁、１７…
…流入配管接続穴、１８……流出配管接続穴、２
１，２２……凸部。 1 to 6 show a first embodiment of the present invention. Fig. 1 is a perspective view when connecting a joint member and a box type expansion valve to the refrigerant inflow pipe and the refrigerant outflow pipe, Fig. 2 is a front sectional view of Fig. 1, and Fig. 3
The figure is a front view of a stacked refrigerant evaporator to which the refrigerant evaporator of the present invention is applied, with a joint member and a box-type expansion valve connected, FIG. 4 is a front view of a tube plate, and FIG. FIG. 6 is a side sectional view of a flat tube constructed by combining two flat tubes. FIG. 7 is a sectional side view of a joint member showing a second embodiment of the present invention. FIG. 8 is a cross-sectional view showing a connection state between a conventional refrigerant inflow pipe, a refrigerant outflow pipe, and a joint member. In the figure, 1... Stacked refrigerant evaporator, 11... Refrigerant inflow pipe, 12... Refrigerant outflow pipe, 15... Plate joint member, 16... Box type expansion valve, 17...
...Inflow pipe connection hole, 18...Outflow pipe connection hole, 2
1, 22...Protrusion.

Claims

[Claims for Utility Model Registration] 1. A refrigerant evaporator in which a joint member for connecting a box-type expansion valve is attached to the free ends of a refrigerant inflow pipe and a refrigerant outflow pipe by brazing, wherein the joint member is , a convex portion is provided at an outer peripheral position of an inflow pipe connection hole that fits into the refrigerant inflow pipe and at an outer peripheral position of an outflow pipe connection hole that fits into the refrigerant outflow pipe, the refrigerant inflow pipe and the refrigerant outflow pipe When the inflow pipe connection hole and the outflow pipe connection hole are fitted to the refrigerant inflow pipe and the refrigerant outflow pipe before brazing the pipe and the joint member, the refrigerant inflow pipe and the refrigerant A refrigerant evaporator characterized in that the joint member is temporarily fixed to the refrigerant inflow pipe and the refrigerant outflow pipe by caulking the outflow pipe with the convex portion. 2. The refrigerant evaporator according to claim 1, wherein the convex portion is provided all around the inflow pipe connection hole and the outflow pipe connection hole.