JPH09318281A - Lamination type evaporator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve heat-exchange performance to a manufacturing cost and to improve rigidity of a side plate by a method wherein a fin is eliminated and a cut rise having a tip making contact with an evaporator core is formed in a side plate. SOLUTION: Side plates 12 and 12 are arranged on both sides of an evaporator core 11 and a fin disposed in the side plate is eliminated. Further, a plurality of cut rises 13 each having a tip making contact with an evaporator are formed in each of side plates 12 and 12. The cut rise 13 is formed in a state to protrude toward the central side of the evaporator 11. As noted above, by forming a plurality of the cut rises in each of the side plates 12 and 12, rigidity is improved. Simultaneously, since the tip of the cut rise makes contact with the evaporator core 11, even when a load is exerted on the side plate, deformation is prevented from occurring.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated evaporator, more specifically, a laminated type in which side plates are arranged on both sides of an evaporator core and fins are arranged between these side plates and the evaporator core. Regarding the evaporator.

[0002]

2. Description of the Related Art FIGS. 4 to 6 show an evaporator 2 provided with a conventional laminated evaporator core 1, and FIG. 7 shows the evaporator core 1. On both sides of this evaporator core 1, side plates 3 and 3 for protecting the tubes through which the refrigerant flows are arranged, and fins 4 and 4 are arranged in these side plates 3 and 3, respectively.

The evaporator 2 has a structure in which a cooling case 7 accommodates the evaporator core 1 and the like. The cooling case 7 has an air inlet 5 and an air outlet 6 on opposite sides. The arrows shown in FIGS. 4 and 7 indicate the direction of air flow.

[0004]

By the way, in such an evaporator 2, when air is sent to the evaporator 2 by using a suction type blower motor (not shown), a large amount of air is generated in the vicinity of the center of the evaporator core 1. Flows,
Only a small amount of air flows near the side plates 3 and 3 on both ends thereof. Therefore, the heat exchange performance in the vicinity of the side plates 3 and 3 is low, and the heat exchange performance with respect to the manufacturing cost in this portion was not sufficient.

Further, the portions of the side plates 3 and 3 in the conventional evaporator 2 are easily deformed when a load is applied, and the fins 4 and 4 in the side plates 3 and 3 are easily crushed. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a laminated evaporator that has good heat exchange performance with respect to manufacturing costs and that can increase the rigidity of side plates.

[0006]

In order to achieve the above object, side plates are provided on both sides of an evaporator core, and fins are provided between the side plates and the evaporator core. ,
The fins are eliminated, and the side plate is provided with a cut-and-raised portion whose tip abuts on the evaporator core.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a laminated evaporator according to the present invention will be described in detail below with reference to the accompanying drawings. 1 and 2 show an embodiment of a tree laminated evaporator according to the present invention. In the evaporator of this embodiment, the side plates 12, 12 are arranged on both sides of the evaporator core 11, and the fins arranged inside the side plate are eliminated.

Further, the side plates 12 and 12 include
Cut-and-raised 13 whose tip contacts the evaporator core 11
Are provided in plural for each. These cut-and-raised parts 13 are formed by being extruded toward the center side of the evaporator core 11 so as to define spaces each having a substantially triangular cross section.

In this embodiment, the side plates 12, 12 are
The rigidity is improved by providing the plurality of cut-and-raised parts 13 in the. At the same time, since the tips of the cut-and-raised parts 13 are in contact with the evaporator core 11, even if a load is applied to the side plates 12, 12, the plurality of cut-and-raised parts 13 prevent the side plates from being deformed.

A suction type blower motor (not shown)
When air is sent to the inside of the evaporator of the present embodiment by using, a large amount of air flows near the center of the evaporator core 11, but near the side plates 12 at both ends of the evaporator core 11, the heat exchange performance is almost the same. Only a small amount of air flows that does not affect the. These slight air flows through them without being disturbed by the cut-and-raise 13, and the side plates 12,
Even in the 12th portion, a slight heat exchange is performed.

In the evaporator of this embodiment, since the fins are not provided in the side plates 12 and 12, the manufacturing cost is reduced. Therefore, in this embodiment, the heat exchange performance with respect to the manufacturing cost of the entire evaporator is improved.

In the above embodiment, the cut-and-raised portion 13 of the side plate 12 is formed so as to define a space having a substantially triangular cross section, but the present invention is not limited to this, and as shown in FIG. Of course, it may be cut out from the side plate 12 and bent at a substantially right angle.

[0013]

As described above, according to the laminated evaporator of the present invention, the side plates are provided on both sides of the evaporator core, and the fins are provided between the side plates and the evaporator core. In the laminated evaporator described above, the fins are eliminated, and the side plate is provided with a cut-and-raised portion whose tip abuts on the evaporator core. Therefore, the following effects can be obtained.

That is, according to the present invention, the side plate is provided with cut-and-raised parts to improve its rigidity, and the fins are eliminated to reduce the number of parts and reduce the manufacturing cost. You can measure. Therefore, the present invention can improve the heat exchange performance with respect to the manufacturing cost of the entire evaporator.

Further, since the tip end of the cut-and-raised part is in contact with the evaporator core, the side plate is prevented from being deformed by the cut-and-raised part even when a load is applied.

[Brief description of drawings]

FIG. 1 is a perspective view showing an evaporator core of an embodiment of a laminated evaporator according to the present invention.

FIG. 2 is a perspective view showing an example of cut and raised portions formed on a side plate of one embodiment of the laminated evaporator according to the present invention.

FIG. 3 is a perspective view showing another example of cut-and-raised parts formed on the side plate of one embodiment of the laminated evaporator according to the present invention.

FIG. 4 is a perspective view showing a conventional laminated evaporator.

FIG. 5 is a cross-sectional view showing a conventional laminated evaporator.

FIG. 6 is a front view showing a conventional laminated evaporator.

FIG. 7 is a perspective view showing an evaporator core of a conventional laminated evaporator.

[Explanation of symbols]

 11 Evaporator core 12 Side plate 13 Cut and raised

Claims (3)

[Claims] 1. A laminated evaporator in which side plates are provided on both sides of an evaporator core, and fins are provided between these side plates and the evaporator core, the fins are eliminated, and the side plates are provided with: A laminated evaporator having a cut-and-raised portion whose tip abuts on the evaporator core. 2. The laminated evaporator according to claim 1, wherein the cut-and-raised parts are formed so as to define a space having a substantially triangular cross section. 3. The laminated evaporator according to claim 1, wherein the cut-and-raised parts are formed by bending the side plates at substantially right angles.