JPH0221744Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a device for connecting a ventilation duct to a ventilation opening formed on one side of an inner box constituting a storage chamber.

[Technical background of the invention] In a fan-cooled refrigerator, it is necessary to connect an air intake duct to the intake port of the storage room to guide the air inside the storage room to the cooler. In this case, conventionally,
A grill was fixed to one end of the intake duct, and the grill was fixed to the intake port of the storage chamber with screws.

[Problems with Background Art] However, fixing with screws is troublesome and has poor workability, and requires fixing parts such as screws, which is disadvantageous in terms of cost.

[Purpose of the invention] It is an object of the present invention to provide a ventilation duct connecting device for a refrigerator that can connect a ventilation duct to an opening of a storage room without using fixing parts such as screws.

[Summary of the invention] The invention consists of a through hole formed at the periphery of the ventilation opening of the inner box constituting the storage chamber, an engaged part formed at one end of the ventilation duct, and the periphery A grill arranged on the outside of the inner box so as to face the outer surface of the peripheral edge of the opening and having a portion corresponding to the inside of the opening in a lattice shape, and a grill formed on the grill and engaged with the engaged portion of the ventilation duct. a first engaging part that connects and fixes the ventilation duct and the grill together; an engaged part formed on a peripheral edge of the grill to correspond to the through hole;
It is formed integrally with the grill via a self-hinge so as to be located between the grids thereof, and is rotated via the self-hinge to sandwich one wall of the inner box and engage the grill through the through hole. It is characterized by comprising a second engaging part that engages with the mating part.

[Example of idea] The explanation will be based on the drawings.

First, in FIG. 3, 1 is a main body formed by filling a heat insulating material 4 between an outer box 2 and an inner box 3;
These are for constructing the freezer compartment 5, the chilled compartment 6, and the refrigerating compartment 7, and are integrally molded from plastic. The freezer compartment 5, the chilled compartment 6, and the refrigerator compartment 7 are cooled by a fan cooling method, that is, a cooler 9 is disposed within the partition wall 8 between the freezing compartment 5 and the chilled compartment 6, and when the fan 10 rotates, The air in each chamber 5, 6, and 7 is supplied to a cooler 9, and the air cooled by the cooler 9 is supplied to each chamber 5, 6, and 7. Each chamber 5, 6 and 7 is cooled to a predetermined temperature. Reference numeral 11 denotes an air intake duct which is a ventilation duct for guiding air into the refrigerator compartment 7 which is a storage room to the cooler 9, and this intake duct 11 is connected to an inlet 12 which is an opening of the refrigerator compartment 7 (see Fig. 1). Ru. Here, this connection configuration will be explained with reference to FIGS. 1 and 2. That is, the suction port 12 is formed at the front of a portion of the inner box that constitutes the top wall of the refrigerator compartment 7 (hereinafter simply referred to as the top wall of the refrigerator compartment 7).
A through hole 13 is formed at the periphery of 2. Reference numeral 14 designates an engagement step portion formed on the outer surface of one end of the intake duct 11 as an engaged portion. Reference numeral 15 denotes a grill provided to cover the suction port 12, with corresponding portions inside the suction port 12 formed in a lattice shape, and a first engaging portion serving as a first engaging portion corresponding to the engaging stepped portion 14 on the peripheral edge. An engaging claw 16 is provided to protrude upward, and an engaging hole 17 serving as an engaged portion is formed corresponding to the through hole 13. In addition, a second engaging claw 18, which is a second engaging portion, is integrally provided on the grille 15 and extends from the periphery via a self-hinge 19 so as to be located between the grids 15a, corresponding to the engaging hole 17. are doing.

In the above configuration, the intake duct 11 is connected to the intake port 1
2, first align the peripheral edge of the grille 15 with one end surface of the intake duct 11, and elastically engage the first engaging claw 16 with the engaging stepped portion 14. 15 and the intake duct 11 are connected and fixed. In a pre-process of filling the heat insulating material 4, the intake duct 11 is inserted into the space between the chilled chamber 6 and the refrigerator compartment 7 of the inner box 3, and the peripheral edge of the grill 15 is inserted into the outer peripheral edge of the intake port 12. It is placed on the outside of the upper wall of the refrigerator compartment 7 so as to be directed toward the refrigerator compartment 7. Next, the second engaging claw 18 existing between the grids 15a is rotated downward about the self-hinge 19, and the claw portion 18a at the tip is engaged with the engaging hole 17 through the through hole 13. Due to this engagement of the claw portion 18a, the peripheral edge of the intake port 12 on the upper wall of the refrigerator compartment 7 is sandwiched between the peripheral edge of the grill 15 and the second engaging claw 18,
As a result, the grill 15 and, in turn, the intake duct 11 are connected and fixed to the outer box 2. After the intake duct 11 is connected to the intake port 12 in this manner, a heat insulating material 4 is filled between the outer box 2 and the inner box 3. At this time of filling, since the peripheral edge of the outer box 2 and the peripheral edge of the grill 15 are in surface contact, there is no possibility that the heat insulating material 4 will leak from the outer box 2 into the refrigerator compartment 7.

In the above embodiment, the explanation has been made by applying the present invention to the connection of the intake duct 11, but the present invention may also be applied to the discharge duct that supplies cold air from the cooler 9 into the refrigerator compartment 7.

[Effects of the invention] As explained above, in the present invention, ventilation ducts can be connected by simple engagement means without using fixing members such as screws, which improves workability and reduces the number of parts, reducing costs. Moreover, since the periphery of the opening and the periphery of the grill are in surface contact, the problem of the insulation material leaking into the storage room when it is filled with insulation material can be solved. It is possible to obtain the following effects.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a vertical sectional side view of the main parts, FIG. 2 is an exploded perspective view of the main parts, and FIG. 3 is a partially cutaway perspective view of the refrigerator. It is. In the figure, 7 is a refrigerating room (storage room), 11 is an intake duct (ventilation duct), 12 is an inlet (opening), and 13
1 is a through hole, 14 is an engagement step portion (engaged portion), 15 is a grill, 16 is a first engagement claw (first engagement portion), 1
7 is an engagement hole (engaged part), 18 is a second engagement claw (second engagement part), and 19 is a self-hinge.

Claims (1)

[Scope of utility model registration request] A ventilation opening is formed on one side of an inner box constituting a storage room, and a ventilation duct is connected to this opening, wherein a through hole formed at the periphery of the opening of the inner box and the ventilation duct are connected to the opening of the inner box. an engaged portion formed at one end; and a grill arranged on the outside of the inner box so that its peripheral edge is aligned with the outer surface of the peripheral edge of the opening, and a portion corresponding to the inside of the opening is shaped like a lattice. , a first member formed on the grille and engaging with the engaged portion of the ventilation duct to connect and secure the ventilation duct and the grille.
an engaged portion formed on the peripheral edge of the grille corresponding to the through hole, and a self-engaging portion integrally formed with the grille via a self-hinge so as to be located between the lattices. a second engaging part that is rotated via a hinge to sandwich one wall of the inner box and engages with the engaged part of the grill through the through hole; Coupling device.