JPS5896995A - Sealing ring of heat exchanger - Google Patents

Abstract

PURPOSE:To enable to install a sealing ring in correct form by a method wherein torsion identification marks, which run in the longitudinal direction of the longer side of the sealing ring, are provided at the fixed positions on the outer periphery of the section in the longer side of the sealing ring. CONSTITUTION:A sealing ring 1 has a rectangular form comprising in connecting longer side 11 with shorter side 12 alternately with nearly round in section, on the fixed positions or the outside edge and inside edge of which an outer peripheral bead 13 and an inner peripheral bead 14, both of which run along the whole periphery of the sealing ring 1, are formed as torsion identification marks.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seal ring for a heat exchanger that allows twisting to be easily confirmed.

As shown in Figure 4, an upper tank (A2) is provided at the upper end of the core (A1), and a lower tank (A3) is provided at the lower end.
is provided, and this upper tank (A2) and lower tank (
In the case of a radiator in which the A part is made of resin, that is, a heat exchanger with a resin tank at the end, the second
As shown in the figure, for example, in the upper part, there is a tank receiving part (A5) on the outer periphery of the seat plate (A4) provided at the upper end of the core (A1).
is formed, and a seal ring (
1) is interposed and the outer circumferential tube (A2) of the upper tank (A2) is
6) are caulked together, thereby an upper tank (A2) is watertightly fixed to the upper end of the core (A1), thereby forming an upper tank chamber (A7). This also applies to the lower tank (A3).

As illustrated in FIGS. 3 and 4, the conventional seal ring (1) has a shape that fits into a tank receiving portion (A5) formed on a seat plate (A4) of a core (A1). , the long side I and the short side α have a continuous rectangular shape, and the cross section has a smooth round shape.

However, in the conventional seal ring (1), the long side a
υ is an elongated part that is easy to twist, and the cross section is smooth and round, so even if it is twisted, it is hard to tell from the outside.
A5) and the outer circumference of the upper tank (A2) (
A6) may be caulked. Seal ring(
If 1) is twisted, when it is crimped and press-fitted,
This can lead to abnormal deformation and wrinkles, resulting in poor sealing, resulting in defective products or products with insufficient durability, which not only lowers quality and reliability, but also increases costs due to the occurrence of defective products.

- An object of the present invention is to provide a seal ring for a heat exchanger that can solve the above problems.

In order to achieve this object, the present invention provides a heat exchanger in which a resin tank is caulked to the end of a seat plate.
In the seal ring for a heat exchanger interposed between the seat plate and the resin tank, a torsion identification mark is provided at a fixed position on the outer periphery of the cross section of the elongated part of the seal ring, which continues in the longitudinal direction of the elongated part. By making it possible to easily check the twist of the seal ring, it is possible to identify the twist of the seal ring during heat exchanger manufacturing and to prevent the seal ring from being used in a twisted state. It was made so that there was no such thing.

The present invention will be explained below based on illustrated embodiments.

Note that the same parts are given the same reference numerals.

5 to 7 show one embodiment of the present invention. Like the conventional example, the seal ring (1) has a rectangular shape with a continuous long side αυ and short side round, and the cross section is generally round, but it is located at a fixed position on the outer periphery of the cross section. An outer circumferential protrusion ridge and an inner circumferential protrusion I, which continue along the entire circumference of the seal ring (1), are formed at the outer end and the inner end as twist identification marks. The outer circumference protrusion (13) and the inner circumference protrusion I are the seal ring (
1) It is made up of the parts used when molding. For this reason, although it would be sufficient to provide the twist identification mark only on the long side I, which is the elongated portion, it is formed around the entire circumference.

In the seal ring (1) having the above configuration, as shown in FIG. 7, when the long side part αυ, which is a slender part, is twisted, the outer circumferential protrusion (13, inner circumferential protrusion α) also twists into a spiral shape. Therefore, the degree and condition of torsion can be instantly identified and confirmed.
Since the Uj and the inner circumferential protrusion I are constituted by the ribs, there is almost no increase in the manufacturing cost, and since the ribs are minute, they do not have an adverse effect when caulked.

FIG. 8 shows another embodiment of the present invention, in which an outer circumferential chamfered portion α9 and an inner circumferential chamfered portion αe are formed as torsion identification marks. When the long side portion (11) is twisted, the outer circumferential chamfered portion C9 and the inner circumferential chamfered portion αe are also twisted, so that the twisting can be identified and confirmed as in the previous embodiment. Since it is not a paris, it has the advantage that the cross section is smooth.

Note that the twist identification mark can be configured with various types of visible structures, such as coloring. Also,
It is sufficient to provide them only in the elongated portions that are easy to twist, or they may be disposed intermittently in a continuous manner in the longitudinal direction.

According to the seal ring for a heat exchanger according to the present invention, when manufacturing the heat exchanger, the twist identification mark is visually checked for identification,
Since the seal ring can be placed in the correct position, sealing defects will not occur and a heat exchanger with improved quality and durability can be manufactured. Since the defective rate is reduced, manufacturing costs are also reduced.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the 2 radiator, Fig. 2 is a partial vertical sectional view of the vicinity of the upper tank, Figs. 3 and 4 show conventional examples, Fig. 3 is a perspective view of the seal ring, and Fig. 4 is the ■ in figure 3
-ff sectional view, FIGS. 5 to 7 show one embodiment of the present invention, FIG. 5 is a perspective view of the seal ring, FIG. 6 is a VI-Vl sectional view of FIG. 5, and FIG. A perspective view of the seal ring in a twisted state, and FIG. 8 is a sectional view corresponding to FIG. 6 in another embodiment. (A)--Radiator (A1)--Core (
A2)...Upper tank (A3)...Lower tank (1)...Seal ring

Claims (1)

[Claims] In a seal ring for a heat exchanger that is interposed between a seat plate of a heat exchanger in which a resin tank is caulked to the end of the seat plate and the resin tank, the determination of the cross-sectional outer circumference of the elongated part of the glare seal ring is A seal ring for a heat exchanger, characterized in that a twist identification mark is provided at a position that extends in the longitudinal direction of the elongated part.