KR100620122B1 - refrigerant in/outlet manifold of an evaporator - Google Patents

Abstract

The present invention is manufactured by the same structure of the upper and lower plate of the manifold coupled by the blazing process when assembling to eliminate the difference in the shape of the upper and lower plate to reduce the number of parts and accordingly to reduce the mold cost and parts management cost Relates to a refrigerant manifold.

The refrigerant inlet and outlet manifold 23 of the evaporator according to the present invention is an evaporator 11 to which the refrigerant outlet and inlet pipe 22 is connected through a refrigerant outlet and inlet manifold 23 formed by combining a pair of upper and lower plates 31 and 33. In each of the plates 31 and 33 are the same plate, a pair of male and female at any position in the circumferential portion facing each other when the one plate 31 is rotated to face each other about the rotation axis (X). The plurality of coupling holes 41, 43, 51, 53 are formed in pairs in a symmetric relationship with the rotation axis (X) symmetrical relationship so that the type coupling holes (41, 43) are arranged, respectively.

Therefore, according to the present invention, by forming a structure for mechanical coupling of the same type on the upper and lower manifold plate, it is possible to unify the upper and lower plates into the same one component to reduce the overall cost of manufacturing and managing parts.

Evaporator, Refrigerant, Manifold, Coupler

Description

Refrigerant in / outlet manifold of an evaporator

1 is a schematic diagram of an air conditioning system used in a vehicle.

Figure 2 is a schematic perspective view of a conventional general evaporator applied to Figure 1;

3A is an exploded perspective view of a refrigerant inflow and manifold applied to FIG. 2;

FIG. 3B is an assembled perspective view of the refrigerant inflow and manifold applied to FIG. 2. FIG.

4 is a schematic perspective view of an evaporator according to the invention applied to FIG. 1.

5 is an exploded perspective view of a refrigerant inlet and outlet manifold according to one embodiment of the present invention applied to FIG. 4.

6 is an exploded perspective view of a refrigerant inflow and manifold according to another embodiment of the present invention applied to FIG.

* Description of the symbols for the main parts of the drawings *

11: evaporator 23223: refrigerant flow in and out manifold

31,33,231,233: upper and lower plate 41,51: female coupling

43,53,243,253: male coupler 45: flange

The present invention relates to a refrigerant inflow and outflow manifold of the evaporator, and more particularly, by manufacturing the same structure of the upper and lower plates of the manifold to be joined by the blazing process during assembly to reduce the number of parts by eliminating the difference in the shape of the upper and lower plates Accordingly, the present invention relates to a refrigerant manifold of an evaporator capable of reducing mold cost and parts management cost.

In general, an air conditioning system used in a vehicle is composed of a compressor 103, a condenser 105, a receiver dryer 107, an expansion valve 109 and an evaporator 111, as shown in FIG. .

Here, the compressor 103 serves to convert the refrigerant into a gas of high temperature and high pressure as in a conventional air conditioner system, the condenser 105 liquefies a gas of high temperature and high pressure, and the receiver dryer 107 is water and dust. Temporarily store the refrigerant so that it is removed and the required amount can be supplied to the evaporator for the cooling load. In addition, the expansion valve 109 makes the refrigerant into a low-temperature low-pressure liquid phase liquid to facilitate heat exchange in the evaporator 111, the evaporator 111 is a heat exchanger by heat exchange with the air introduced by the blower unit 113 as a heat exchanger The refrigerant passing through the evaporator 111 is cyclically repeated from the compressor 103 to the air conditioner system 101.

In the vehicle air conditioner system 101 configured as described above, the evaporator 111 is manufactured by stacking tube plates 121, as shown in FIG. 2, so that refrigerant may flow in and out of the stacked tube plates 121. Evaporator manifolds 123 are respectively installed at the refrigerant outlet.

At this time, each manifold 123 is to assemble the upper and lower pairs of plates (131, 133), as shown in Figure 3a, b in the conventional case, the upper and lower plates (131, 133) in the assembly It is integrally joined by brazing. Accordingly, the upper and lower plates 131 and 133 have a plurality of bent tabs 135 protruding at regular intervals, for example, as shown in FIG. 3A, and the edges of either plate 133. Before the upper and lower plates 131 and 133 are joined by brazing, the bending tab 135 is bent into the upper surface of the plate 131 while the both plates 131 and 133 are folded and the both plates 131 and 133 are primarily formed by the bending tab 135. To be combined.

However, according to the conventional manifold 123 structure that the bending tab 135 is attached to only one plate 133 for mechanical coupling of the upper and lower plates 131 and 133, the upper and lower plates 131 and 133 may be attached. Although the same in the overall form, since there are two completely different parts depending on the presence or absence of the bending tab 135, there were problems that the matters related to the production or handling of the parts doubled.

The present invention has been proposed to solve the problems of the conventional refrigerant manifold of the evaporator as described above, by having a structure for mechanical coupling to the upper and lower manifold plate while making the shape of both plates exactly the same, The aim is to reduce the number of parts involved in the manufacture of manifolds by half, thus reducing production and maintenance costs.

In order to achieve the above object, the present invention provides an evaporator in which a refrigerant inlet and outlet pipe is connected through a refrigerant inlet and outlet manifold formed by combining a pair of upper and lower plates, wherein each plate is the same plate, and either plate is formed around a rotating shaft. When a pair of male and female couplers are arranged at random positions facing each other when they are rotated to face each other, a plurality of couplers are arranged in pairs in a symmetrical relationship with the rotation axis so that the refrigerant flows out of the evaporator alternately formed. Provide a manifold.

Now, the preferred embodiment of the refrigerant flow-out manifold of the evaporator according to the present invention will be described in detail with reference to the accompanying drawings.

The refrigerant inlet and outlet manifold according to the present invention is a part connecting the tube plate 21 or the main body of the evaporator 11 and the refrigerant outlet and inlet pipe 22, as shown by reference numeral 23 in FIG. As shown, the upper and lower pairs of plates 31 and 33 are combined.

Here, each of the upper and lower plates 31 and 33 is substantially the same plate, and when the upper plate 31 is inverted in FIG. 5, the lower plate 33 is turned over. In order to maintain this shape, the upper and lower plates 31 and 33 have a plurality of male and female coupling holes 41, 43, 51 and 53 formed in the circumferential portion as follows.

When referring to the plate of either the upper or lower plate 31 or 33, the female coupler 41, 51 is formed on the diagonal of either diagonal of the flange 45 having an approximately rectangular shape. Male couplers 43 and 53 are formed thereon. In other words, when one of the female or male coupler (41, 51 or 43, 53) formed in the flange 45 is observed along the clockwise or counterclockwise direction, the female type The coupler and the male coupler appear alternately. As a result, the upper and lower plates 31 and 33 having the same shape are arranged such that the female coupler 41 and 51 and the male coupler 43 and 53 are symmetrical with respect to the diagonal of the flange 45. When the plate 31 is rotated with its longitudinal axis as the rotation axis X so as to face the lower plate 33 so as to face each other, the male and female coupler 41 forms a pair of male and female on the flange 45 facing each other. 43, 51 and 53 are arranged.

At this time, each male and female coupler (41, 43, 51, 53) can be modified in various forms, as shown in Figure 5 the female coupler (41, 51) to the flange 45 The fitting hole 43 may be a fitting protrusion protruding at a corresponding position on the inner surface of the flange 45 so as to press the male coupling holes 43 and 53 into the female coupling holes 41 and 51.

In addition, the upper and lower plates (231, 233) as shown in Figure 6 is a female coupler in place of the respective male and female coupler (41, 43, 51, 53) to constitute a manifold 223 according to another embodiment As an edge portion of the flange 245, the male coupler can be replaced with bent tabs 243 and 253 attached to the surface of the flange 245. At this time, the edge surface of the flange 245, which is a female coupler corresponding to each of the bent tabs 243 and 253, which is a male coupler, must be left empty without any structure so that the bent tabs 243 and 253 can be coupled. The flange 245 edge surface can serve as a female coupler.

Therefore, according to the refrigerant inflow and outflow manifold 23 of the evaporator of the present invention configured as described above, in the case of the embodiment shown in Figure 5 to combine the upper and lower plates 31, 33 to manufacture the manifold 23, The male and female coupler formed so as to face each other on the flange 45 of the upper and lower plates 31 and 33, that is, the fitting holes 41 and 51 and the fitting protrusions 43 and 53 are assembled by force fitting and then attached by brazing. Just do it. In this way, the fitting holes 41 and 51 and the fitting protrusions 43 and 53 are respectively disposed on the diagonals of the rectangular flange 45, so that the male and female coupling holes 41 are also formed by the plate 31 and 33 of one type. (43, 51, 53) can take the form of coupling to each other.

Similarly, in the case of the manifold 223 according to the embodiment shown in FIG. 6, when the upper and lower plates 231 and 233 are coupled, the bending tabs 243 and 253 serving as the male couplers face each other when the upper and lower plates 231 and 233 are coupled to each other. One plate (231, 233) is bent over the edge of the assembly so as not to fall, and then attached by brazing. In this case, of course, the upper and lower plates 231 and 233 having the same shape in which the plurality of bent tabs 243 and 253 are formed at regular intervals may have a male and female coupling form.

As described above, according to the refrigerant flow-out manifold of the evaporator according to the present invention, when one of the same two plates is faced upside down, a pair of male and female couplers are positioned in a straight line, In arranging the male and female couplers in the flange portion of the plate so that they can be joined at the same time, the male and female couplers are arranged in pairs with respect to the rotation axis which becomes the center of rotation when the plate is flipped. It can be produced in the same form.

Therefore, since the manifold can be manufactured by arranging one plate up and down, by reducing the type of plate required for manufacturing in half, it is possible to reduce the production cost and the management cost that increase in proportion to the number of parts in half. Furthermore, the production efficiency can be increased.

While the invention has been shown and described with respect to particular embodiments, it will be understood by those skilled in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the appended claims. Anyone can grow up easily.

Claims (3)

In the refrigerant inlet and outlet manifold formed by combining a pair of upper and lower plates 31 and 33 to provide a passage through which the refrigerant can flow into the evaporator 11 provided in the vehicle air conditioner system 101. The plates 31 and 33 are the same plates, and female coupling holes 41 and 51 are formed on one of the diagonals of the rectangular flanges 45 provided in the plates 31 and 33. A coolant inlet and outlet manifold of the evaporator, characterized in that male couplers (43, 53) are formed on the other diagonal lines of (45). Claim 2 was abandoned when the setup registration fee was paid. According to claim 1, The female coupler (41, 51) is a fitting hole processed in the flange 45, the male coupler (43, 53) is on the flange 45 so as to correspond to the female coupler (41, 51) Refrigerant outflow manifold of the evaporator, characterized in that the fitting protrusion formed in. Claim 3 was abandoned when the setup registration fee was paid. According to claim 1, The female coupler of the upper and lower plates (231,233) is an edge surface of the flange, and the male coupler is a bent tab (243,253) formed on the edge surface of the flange.

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