KR100407299B1 - Shroud for refrigerator - Google Patents

Abstract

The present invention relates to a shroud device for distributing cold air generated in a refrigerator to a freezer compartment and a refrigerating compartment.

The shroud according to the present invention comprises a first shroud 10 and a second shroud 20 formed of a heat insulating material such as styrofoam. The second shroud 20 is coupled to the rear surface of the first shroud to form a cold air supply path for supplying cold air toward the freezing compartment and the refrigerating compartment. The fan motor assembly 30 includes a fan motor 32 and a support part 33 for supporting the fan motor, and the upper end 34 of the support part 33 is formed on the first shroud, The lower portion 36 is supported in contact with the second shroud. Therefore, the shroud made of styrofoam prevents the doubling phenomenon due to the temperature difference, and at the same time absorbs the vibration generated during the operation of the fan motor assembly to prevent the generation of noise.

Description

Shroud for refrigerator {Shroud for refrigerator}

The present invention relates to a shroud for distributing cold air generated in a refrigerator, and more particularly, to a shroud for a refrigerator having a function of preventing a doubling phenomenon due to a temperature difference and absorbing vibration.

First, a structure of a shroud portion for a refrigerator will be described based on FIGS. 1 and 2. The shroud part for a refrigerator is a part which is provided in front of the heat exchange chamber in which the evaporator is installed, and distributes the cold air produced | generated by heat exchange with an evaporator to a freezer compartment and a refrigerating compartment. Of course, the cold air circulating in the freezer compartment flows into the heat exchange chamber through the shroud.

As shown in the drawing, the conventional shroud portion includes a grill pan 2 and a shroud 4 that forms a constant cold air passage between the grill pan 2. The grill pan 2 and the shroud 4 are usually injection molded from a synthetic resin material. The grill pan 2 is provided with a freezer compartment discharge port 2a formed in the upper portion for discharging cold air into the freezer compartment, and a freezer compartment suction port 2b for returning the cold air circulated through the freezer compartment back to the evaporator side.

And the shroud (4) is provided with a blower opening (4a) for supplying the cold air to the freezer compartment by the fan motor assembly (6), a predetermined so as to supply the cold air to the refrigerator compartment between the grill pan (2) The rib 4b for forming a duct is provided. And the lower part of the shroud 4 is provided with a return inlet (4c) for passing the cold air introduced through the freezer compartment suction port (2b) to the evaporator side.

As shown in FIG. 2, the shroud 4 includes a fan motor seating portion 4d and a coupling protrusion 4e extending rearward from one side thereof. The fan motor 6 is attached to the fan motor seat 4d and the engaging projection 4e in front and rear, respectively. That is, the rear of the fan motor 6 is supported by the fan motor seat 4d. The front of the fan motor 6 is supported by the engaging projection 4e via the fan motor fixing part 6a.

The fan motor assembly 6 may have a coupling structure as shown in FIG. 2, but may be mounted on the shroud with another structure. For example, a fan motor support portion that supports the fan motor inside and is made of an injection molding may be an example of an assembled configuration, in which the fan motor assembly is installed at the rear of the shroud 4.

However, according to the conventional structure, the following structural disadvantages occur.

A significant temperature difference occurs between the rear surface of the shroud 4 and the front surface of the grill pan 2, so that a dewing phenomenon occurs substantially on the front surface of the grill pan 2. When the doubling phenomenon occurs, there is a disadvantage in that freezing occurs on the front surface of the grill pan 2 due to the low temperature of the freezing chamber. In order to solve the doubling phenomenon caused by the temperature difference, a separate styrofoam insulating material may be installed on the rear surface of the grill pan 2, but this poses a disadvantage in that the configuration is complicated and the assembly process is complicated.

And the shroud in which the fan motor 6 is installed is molded from a synthetic resin material as described above. And since the lower end of the shroud (4) is assembled in contact with the bottom surface of the freezer compartment, the generation of noise due to vibration during operation of the fan motor (6) is a serious problem. In order to solve the noise problem of the shroud (4), although a separate rubber dustproof material is installed on the fan motor fixing part (6a) and the fan motor, it does not suppress the generation of substantial vibration and noise. That is, even when the dustproof material is installed because the shroud 4 itself is molded from an injection molding of synthetic resin material, it does not fundamentally block the transmitted vibration, there is a disadvantage that the problem of noise is pointed out.

The present invention has been made to solve the above disadvantages, and an object of the present invention is to provide a shroud for a refrigerator that can prevent the doubling phenomenon in the temperature difference.

It is another object of the present invention to provide a shroud for a refrigerator that can prevent the vibration generated from the fan motor and the resulting noise from being transferred to another member.

Still another object of the present invention is to provide a shroud for a refrigerator, which is simpler and can reduce production costs.

1 is an exploded perspective view showing the structure of a shroud of a conventional refrigerator.

Figure 2 is a cross-sectional view showing the configuration of the shroud portion of a conventional refrigerator.

Figure 3 is a cross-sectional view showing the configuration of the shroud portion according to the present invention.

Figure 4 is an exploded perspective view of the shroud portion according to the present invention.

5 is a cross-sectional view of the shroud portion according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10 ..... 1st shroud 12 .... Freezer discharge

13 ..... Conical projections 20 ..... 2nd shroud

30 ..... fan motor assembly 32 ..... fan motor

33 ..... Support 34 ..... Upper part

36 ..... Lower part

Shroud device of the refrigerator according to the present invention for achieving the above object, the first shroud is formed of a heat insulating material; A second shroud coupled to a rear surface of the first shroud to form a cold air passage for supplying cold air to a freezing compartment and a refrigerating compartment, and formed of a heat insulating material; And a fan motor assembly for supplying cold air through a cold air passage formed by the first shroud and the second shroud.

In this way, by configuring the first shroud and the second shroud as a heat insulating material, it is possible to prevent the occurrence of the duing phenomenon due to the temperature difference.

According to one embodiment of the present invention, the second shroud is coupled at a position corresponding to the lower part of the first shroud, and the fan motor assembly is provided between the upper part of the second shroud and the upper part of the first shroud. Is installed.

According to another embodiment, the fan motor assembly includes a fan motor and a support for supporting the fan motor, wherein the support is supported by the first shroud and the second shroud.

According to another specific embodiment of the present invention, the support part of the fan motor assembly includes an upper end and a lower end, and the upper end and the lower end are supported by the first shroud and the second shroud, respectively.

According to this embodiment, since the fan motor assembly is installed in a state in which the fan motor assembly is supported by the first shroud and the second shroud as insulation, vibration generated during the operation of the fan motor assembly is generated. It is absorbed by, it is possible to prevent the noise caused by vibration.

According to one embodiment of the coupling relationship of each shroud, the second shroud is joined by being inserted into a sidewall extending rearward from both sides of the first shroud. According to this embodiment, it is possible to more easily perform the assembly process for the combination of the first shroud and the second shroud.

In another embodiment, a conical protrusion is formed on a portion of the rear surface of the first shroud in which the fan motor assembly is installed. Such conical protrusions can prevent the formation of vortices by controlling the distribution of cold air on the air flow in which the cold air supplied by the fan motor assembly is separately supplied to the freezer compartment and the refrigerating compartment.

The cold air passage formed by the first shroud and the second shroud includes a freezing chamber discharge hole for discharging cold air into the freezing chamber, and a cold air supply unit for supplying cold air to the refrigerating chamber, wherein the cold air supplied toward the cold air supply unit is formed. Guided by the refrigerating chamber supply duct formed between the first shroud and the second shroud.

Next, by the following description based on the embodiment shown in the drawings, it will be able to understand in more detail the configuration and operation and effects of the present invention.

Figure 3 is a cross-sectional view showing the configuration of the peripheral portion to which the shroud is applied according to the present invention, Figure 4 is a perspective view of the separated state of the shroud of the present invention.

The shroud according to the present invention is made of a heat insulating material such as styrofoam, and is composed of a first shroud 10 and a second shroud 20 coupled to the rear surface of the first shroud. By combining the first shroud 10 and the second shroud 20, one shroud is combined, the completed shroud is a path for discharging cold air into the freezer compartment and the refrigerating compartment, and A path will be established for the return of air from the freezer and refrigerating compartments.

3 and 4, a freezer compartment discharge hole 12 for supplying cold air to the freezer compartment is formed in the upper portion of the first shroud 10 made of a heat insulating material such as styrofoam. In the lower portion, a refrigerating chamber supply unit 11 for supplying cold air to the refrigerating chamber is molded. The supply of cold air to the refrigerating compartment supply unit 11 is guided by the refrigerating compartment supply duct 11a, which is concavely formed in the first shroud 10. Therefore, when the first shroud 10 and the second shroud 20 to be described later are combined with each other, the refrigerating chamber supply duct 11a substantially forms a duct shape for guiding cold air downward.

In the middle portion of the first shroud 10, a conical protrusion 13 having a peak like a mountain is formed. The conical projection 13 is a part for guiding the air flow formed by the fan motor assembly 30 to the upper freezing chamber discharge hole 12 and the lower refrigerating chamber supplying part 11, and when there is no air flow supplied thereto, It hits the wall on the plane to prevent turbulence from forming by turbulence. Therefore, the air flow formed by the fan motor assembly 30 is guided to the upper and lower portions by the conical projection 13, thereby forming a smooth flow of air.

A pair of return holes 14 are formed at both sides of the lower end of the first shroud 10. The return hole 14 is formed in a pair as shown in Figure 4, the return hole 14a of one side is to return the air circulated through the freezer compartment, the return hole 14b of the other side is the air circulated through the refrigerating chamber Is to return.

Next, the second shroud 20 will be described. As shown in Figure 3 and 4, the second shroud 20 is to provide a completed shroud by coupling to the inside of the first shroud 10, the first shroud ( In the same manner as in 10), it is molded from an insulation such as styrofoam.

The central compartment of the second shroud 20 is formed with a refrigerating chamber supply duct 22 along the longitudinal direction. The refrigerator compartment supply duct 22 is formed in a portion corresponding to the refrigerator compartment supply duct 11a of the first shroud 10, and when the first shroud 10 and the second shroud 20 are coupled to each other, Substantially, a duct is formed to supply cold air to the refrigerating chamber. The cold air guided along the refrigerating compartment supply ducts 11a and 22 will be guided to the refrigerating compartment through the refrigerating compartment supply unit 11 formed below.

When the first shroud 10 and the second shroud 20 are combined with each other, the completed shroud becomes one. The completed shroud has a freezing chamber discharge hole 12 for discharging cold air into the freezing chamber, a refrigerating chamber supply unit 11 for supplying cold air to the refrigerating chamber, and a return air for cooling air circulating in the freezing chamber and the refrigerating chamber to the evaporator 40 side. It is as mentioned above that 12 is shape | molded.

In the coupling relationship between the first shroud 10 and the second shroud 20, as shown in FIG. 3, the second shroud 10 is formed inside both side walls 15a and 15b of the first shroud 10. The shroud 20 is joined by being inserted. This combination provides one completed shroud as described above. However, the combination of the first shroud 10 and the second shroud 20 is not limited to this embodiment. For example, the first shroud 10 and the second shroud 20 except for the internal configuration may be molded in the same planar state, and then the two shrouds 20 may be fixed to each other while being in close contact with each other. In this case, it is also possible to use an adhesive between the first shroud 10 and the second shroud 20, and it is also possible to use a tape having adhesive strength on both sides. In addition, the first shroud 10 and the second shroud 20 may be completed by an embodiment of fixing the front and rear surfaces of each other in a state in which both of them are in close contact by using a forceps-shaped mechanism.

Next, the fan motor assembly 30 installed between the first shroud 10 and the second shroud 20 will be described with reference to FIG. 3.

The fan motor assembly 30 includes a fan motor 32 having a fan and a support part 33 for supporting the fan motor 32. The support part 33 is formed of an injection molded product of synthetic resin material and is supported by the first shroud 10 and the second shroud 20 described above. The support 33 is supported by the first shroud 10 and the second shroud 20, which means that the fan motor assembly 30 is substantially supported by the shroud. In consideration of the fact that the first shroud 10 and the second shroud 20 are made of a heat insulating material such as styrofoam, the vibration generated in the fan motor assembly 30 is substantially the present invention. It will be completely absorbed by the shroud by.

Looking at the specific coupling relationship between the support 33 and the shroud (10, 20), the upper end 34 of the support 33 is supported by the first shroud (10). For example, the upper end portion 34 is fixed by being inserted between the inner case surface 42 and the first shroud 10 forming the heat exchange chamber. And the lower end part 36 of the support part 33 is supported by the upper part of the 2nd shroud 20. As shown in FIG. That is, the lower end portion 36 is divided into two tongs, and the second shroud 20 is inserted therebetween, and is configured to be supported at the upper portion of the second shroud 20. . The support structure of the fan motor assembly 30 is supported in a state substantially surrounded by the first shroud 10 and the second shroud 20. Therefore, the vibration generated in the fan motor assembly 30 can be absorbed by the shroud (10, 20) which is a heat insulating material.

However, the support structure of the fan motor assembly 30 supported between the first shroud 10 and the second shroud 20 is not limited thereto. That is, of course, other support structures are possible within the range in which the support part 33 of the fan motor assembly 30 can be supported by the first shroud 10 and the second shroud 20. For example, as shown in FIG. 5, the upper end 34 of the support 33 may be supported in contact with the lower surface 10a of the upper part 11 of the first shroud 10. In addition, it is also possible to support the lower end portion 36 of the support portion 33 in contact with the upper surface 20a of the second shroud 20. As shown in FIG. 5 showing such a support structure, the fan motor assembly 30 is substantially supported by being surrounded by the first shroud 10 and the second shroud 20. have.

As described above, in the present invention, the shroud is composed of the first shroud 10 and the second shroud 20, and the shrouds 10 and 20 are made of a heat insulating material such as styrofoam. In fact, it is well known that styrofoam insulation has a function of absorbing vibration as well as a function of insulation.

And by configuring the fan motor assembly to be supported in a state surrounded by the shroud (10, 20), the vibration generated in the fan motor assembly 30 is configured to be sufficiently absorbed by the shroud have.

According to the present invention as described above it can be seen that the following effects can be expected.

First, it will be appreciated that the first shroud 10 and the second shroud 20 are constituted by a heat insulating material, thereby preventing the occurrence of the duing phenomenon due to the temperature difference around the shroud. Therefore, it is possible to prevent the doubling phenomenon and the resulting freezing phenomenon occurring in the shroud.

And as the shroud (10,20) is composed of a heat insulating material, the vibration absorption performance is excellent, and the fan motor assembly (30) by configuring the fan motor assembly 30 to be supported by the shroud (10,20) It is possible to configure so that the vibration generated in) is not transmitted to other parts. Therefore, it becomes possible to solve the conventional problems, such as the noise by vibration.

In addition, according to the present invention, the shroud 10 and 20 are formed of a heat insulating material, but are molded into styrofoam as an example. According to the shroud made of styrofoam as described above, since the structure can be easily configured and the manufacturing cost is low, an economical advantage that can reduce the production cost is also expected.

Claims (8)

A first shroud formed of an insulating material; A second shroud coupled to a rear surface of the first shroud to form a cold air passage for supplying cold air to a freezing compartment and a refrigerating compartment, and formed of a heat insulating material; Shroud device for a refrigerator comprising a fan motor assembly for supplying cold air through the cold air passage formed by the first shroud and the second shroud. The shroud apparatus for a refrigerator according to claim 1, wherein the first shroud and the second shroud are formed of styrofoam. The method of claim 1, wherein the second shroud is coupled at a position corresponding to a lower portion of the first shroud, and the fan motor assembly is disposed between an upper portion of the second shroud and an upper end portion of the first shroud. Shroud device for refrigerator, characterized in that installed in. The shroud of the refrigerator of claim 3, wherein the fan motor assembly comprises a fan motor and a support part supporting the fan motor, wherein the support part is supported by the first shroud and the second shroud. Device. The shroud apparatus of claim 4, wherein the fan motor assembly includes an upper end and a lower end, and the upper end and the lower end are respectively supported by the first shroud and the second shroud. The shroud apparatus of claim 1 or 2, wherein the second shroud is coupled by being inserted into sidewalls extending rearward from both sides of the first shroud. The shroud device for a refrigerator according to claim 6, wherein a conical protrusion is formed on a rear surface of the first shroud in a portion where the fan motor assembly is installed. The cold air passage formed by the first shroud and the second shroud comprises: a freezer compartment discharge hole for discharging cold air to the freezing chamber, and a cold air supply unit for supplying cold air to the refrigerating chamber, and toward the cold air supply unit. The supplied cold air is guided by a refrigerator compartment supply duct formed between the first shroud and the second shroud.