JPS6125550Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention mainly relates to a heat exchanger used in an instantaneous gas water heater.

A heat absorbing body c consisting of a large number of fins a and a heat exchange pipe b inserted through the fins a,
A type that is attached to notches e provided at both ends of the heat absorbing cylinder d is generally known as shown in FIG. However, this method has the disadvantage that the heat absorbing body c is attached to the heat absorbing cylinder d by brazing, and the work is troublesome.

The purpose of the present invention is to obtain a heat exchanger free of such inconveniences.
In the type in which the fins 1, 1 at both ends are attached to the notches 5 with open upper parts provided at the top of both ends of the heat absorbing body 4, the fins 1, 1 at both ends of the heat absorbing body 3 are attached.
A part of the lower end edge 1a is cut and raised to provide a cut-and-raised piece 6 that projects downward, and a cut-and-raised piece that extends laterally by cutting and raising a part of both side ends of the fins 1, 1 at both ends. 7, and both cut and raised pieces 6, 7 are engaged with the lower upright wall plate 5a and the left and right wall plates 5b that constitute the periphery of the notch 5.

Figures 2 and 3 show an example of the implementation of the present invention, and the illustrated one has cut and raised pieces 6 at two locations that avoid the mounting position of the heat exchange pipe 2 that passes through the fins 1 and 1 at both ends. At the same time, cut and raised pieces 7, 7 were provided on both upper sides.

As shown in FIG.
Also, when locking to the left and right wall plates 5b, the cut and raised pieces 6
The vertical position is regulated by this, and the left and right position is regulated by the cut-and-raised piece 7, so that the heat absorbing body 3 can be correctly installed at a predetermined position, and the installation is not limited to the upper part of the notch 5. All you have to do is insert the heat absorber 3 into this.

In this way, according to the present invention, by simply inserting the heat absorbing body 3 into the notch 5 with the upper part of the heat absorbing body 4 opened from above, the cut-and-raised pieces 6 and 7 can be inserted into the upper part forming the periphery of the notch 5. It can be easily assembled by being locked to the rising wall 5a and the left and right wall plates 5b,
Its structure is also simple and effective.

[Brief explanation of the drawing]

In the drawings, Fig. 1 is a perspective view showing a conventional example, Fig. 2 is a perspective view of an example of the implementation of the present invention, Fig. 3 is an exploded perspective view of its main parts, and Fig. 4 is an enlarged end view along the - line. be. DESCRIPTION OF SYMBOLS 1... Fin, 2... Heat exchange pipe, 3... Heat absorber, 4... Notch part, 6, 7... Cut-and-raised piece.

Claims (1)

[Scope of utility model registration request] A heat absorbing body 3 consisting of a large number of fins 1 and a heat exchange pipe 2 inserted through them is connected to fins 1 and 1 at both ends of the heat absorbing body 3.
In the case of a type that is attached to a notch 5 with an open upper part provided at the top of both ends of the heat absorbing body 4, the heat absorbing body 3
A part of the lower end edge 1a of the fins 1, 1 at both ends is cut and raised to provide a cut-and-raised piece 6 that projects downward,
A cut-and-raised piece 7 extending laterally is provided at a part of both end portions of the fins 1, 1 at both ends, and the cut-and-raised pieces 6, 7 are provided on the lower side forming the periphery of the notch 5. A heat exchanger that is secured to a standing wall plate 5a and left and right wall plates 5b.