JPS6337878B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an element for a laminated heat exchanger, which does not require a spacer, allows easy manufacture of high-precision products, is less expensive than conventional methods, and is easier to automate assembling and manufacturing. This relates to a laminate.

Conventionally, as a laminated heat exchanger, a laminate in which perforated plates are laminated with spacers interposed is known (Utility Model Publication No. 52-40082, Japanese Patent Application Publication No. 51-21255).
To manufacture these, thin plate materials and spacers must be stacked alternately and then integrated, so there is a problem in that two types of materials must be prepared and supplied alternately. Another problem was that the structure of the assembly equipment was complicated.

However, this invention symmetrically provides a perforated part having a large number of through holes in one thin plate, and a window part continuously surrounded by a window part having substantially the same external shape as the perforated part. Since the laminated body with the conduit is constructed using plate elements, a spacer is unnecessary and when laminating,
The elements can be punched using the same die, and when stacking the elements, the elements can be stacked alternately so that the perforated parts and window parts face each other, which simplifies the work process and successfully streamlines each part. be. When supplying plate elements, either the plate elements stacked in advance at the relevant positions during stacking are supplied one by one, or the plate elements stacked in the same place can be rotated or reversed every other piece and then stacked in the same way. Can be done.

That is, to explain the present invention with reference to the embodiment shown in FIG. 1, square windows 2, 2a are provided on one side with respect to the center line of a square plate 1 made of a thin aluminum plate,
A thin plate element A is obtained by providing a perforated part 4, 4a with a large number of small holes 3, 3 perforated in an area approximately the same as the area of the square window parts 2, 2a on the other side, and 5 in the figure is a square plate. This is a band-shaped non-porous portion provided between the four peripheral edges of No. 1, the square window portion, and the perforated portion. Next, in the embodiment shown in FIG. 2, square window portions 2, 2a and perforated portions 4, 4a having the same area are provided rotationally symmetrically on the diagonal of a square plate 1 to form a thin plate element. 5 is a band-shaped non-porous part.

In addition, FIG. 3 shows a thin plate element in which a circular plate 6 is provided with diametrically symmetrical concentric arc-shaped windows 7, 8 and perforated portions 9, 10 consisting of a large number of small holes 3, 3. is a band-shaped non-porous area.

Alternatively, in FIG. 4, arcuate windows 12, 12a of the same shape are provided diametrically symmetrically and concentrically on the circular plate 6, and perforated portions 13, 13a of the same area as the windows are provided concentrically between the arcuate windows. are arranged diametrically symmetrically to form a thin plate element. In the figure, reference numeral 14 indicates a circular non-perforated portion at the center, and 15 indicates a strip-shaped non-perforated portion.

Furthermore, FIG. 5 shows an arcuate perforated portion 16 and an arcuate window portion 1 that are diametrically symmetrical and have approximately the same area on the inside and outside of the circular plate 6.
7, and a semicircular perforated part 18 and a semicircular window part 19 of approximately the same area are provided inside thereof diametrically symmetrically, and the arcuate perforated part 16 and the semicircular perforated part 18 are provided.
The thin plate element is arranged on the opposite side with respect to the diameter thereof, and 20 in the figure is a band-shaped non-porous part.

In order to manufacture a laminate using the thin plate elements shown in the above embodiment, the thin plate elements A and the thin plate elements A obtained by rotating the thin plate elements A by 180 degrees are stacked alternately as shown in FIG.
After a predetermined number of stacks are stacked, they are brazed and integrated.

When stacked alternately as described above, the perforated part and the window part face each other, so it is exactly the same as using a spacer, and since the band-shaped non-porous part is sealed, the working fluid does not flow to other parts. A highly reliable laminate can be obtained without fear of flow. Note that the material of the element is not limited to aluminum, and any currently used material can be used. Furthermore, although the embodiments have been described with respect to thin plates, the present invention is not limited to the thickness of the plate.

That is, according to the present invention, since an element is used in which a perforated portion and a window portion having the same external shape are provided symmetrically, the object can be achieved by using only one type of punching die when manufacturing the element, and the laminate can be Since it is only necessary to supply the same type of elements during assembly, the structure of the automatic machine is simplified, there are no errors, and the material transfer device is also simplified. In addition, since a laminate using this is constructed by only alternating the orientation of each element, there is no need for a spacer, and since the outer shape of each element is the same, it is possible to control not only the elements but also the intermediate lamination process. There are manufacturing advantages such as easier and reliable product quality control.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an embodiment of the thin plate element of the present invention, FIG. 2 is a plan view of another embodiment, FIG. 3 is a plan view of an embodiment in which the thin plate is circular, and FIG.
The figure is a plan view of an embodiment in which the thin plate is circular, and the perforated part and the window are arranged concentrically. Figure 5 is a plan view of an embodiment in which the thin plate is also circular, and the perforated part and the window are arranged alternately inside and outside. FIG. 6 is a sectional view taken along the line B-B in FIG. 1, FIG. 7 is a perspective view showing the laminated state of the laminate of the present invention, and FIG. 9 is a perspective view showing the stacked state of a conventional laminate, and FIG. 10 is a partially sectional view. 1... Square plate, 2, 2a... Square window part,
4, 4a... Perforated part, 5... Non-perforated part, 6... Circular plate, 7, 8... Window part, 9, 10... Perforated part, 11
...Non-porous part, 12, 12a, 17, 19... Arc-shaped window part, 13, 13a, 16, 18... Perforated part, 1
5, 20... Invalid part.

Claims (1)

[Claims] 1. A perforated part for fluid passage having a large number of through holes;
Boards that have approximately the same external shape as the perforated part and are symmetrically provided with a window part continuously surrounded by the perforated part are successively stacked and closely overlapped so that the perforated part and the window part face each other. A laminate for a laminated heat exchanger, characterized in that the laminate is an integral laminate. 2. The board is a square board, and the square board is provided with at least one perforated part and a window part of substantially the same shape symmetrically with respect to the center line or rotationally symmetrically with respect to the center. A laminate for a laminated heat exchanger according to claim 1. 3. A patent claim characterized in that the plate is a circular plate, a plurality of arc-shaped sections are provided concentrically, and the perforated sections and window sections are arranged in the arc-shaped sections diametrically symmetrically or rotationally symmetrically with respect to the center. The laminate for a laminated heat exchanger according to item 1. 4. A perforated part for fluid passage having a large number of through holes;
An element for a laminated heat exchanger comprising a plate element that is symmetrically provided with a window portion that has approximately the same external shape as the perforated portion and is continuously surrounded by the perforated portion. 5. The element for a laminated heat exchanger according to claim 4, wherein the perforated portion and the window portion are linearly symmetrical or rotationally symmetrical.