JPH0442706Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to refrigerators, and particularly relates to an improved configuration of large refrigerators.

(B) Prior Art Conventionally, this type of refrigerator has a storage chamber formed by an insulating box in the upper part, and a machine room in which an electric compressor etc. is housed in the lower part, as shown in, for example, Japanese Utility Model Application Publication No. 53-41777. It consists of Furthermore, the front opening of the machine room is hidden by a removable cover to improve the design effect.

(c) Problems to be solved by the invention In recent years, with the diversification of foods and the increase in the number of foods stored in refrigerators of this type, the storage capacity has been expanded and the storage compartments have been made multi-compartmental. Under these circumstances, there is a practical limit to expanding the installation area, so the refrigerator has no choice but to expand upwards, making it difficult for the user to deliver food to the top storage compartment. There was a problem where it was not being delivered.

(d) Means for Solving the Problem In order to solve the problem, the present invention provides a step board 69 that extends approximately horizontally from the machine room cover 68 into the machine room 63 at the rear. board 69
is slidably supported in the machine room 63 and can be freely delivered into the machine room 63 in conjunction with the machine room cover 68.

(E) Effect According to the present invention, if the upper part of the refrigerator cannot be reached, a step board can be constructed by holding the machine compartment cover and pulling out the step board to put one's feet on the front of the refrigerator.

(F) Embodiments Next, embodiments will be explained with reference to the drawings. Fig. 1 is a perspective view of a refrigerator 1 to which the present application is applied, Fig. 2 is a front view of the refrigerator 1 with each door removed, Fig. 3 is a sectional view taken along line A-A of Fig. 2 including the door, Figure 4 is the same B-
A cross-sectional view taken along line B is shown. The refrigerator 1 is comprised of a lower heat insulating box 2 that opens to the front, and an upper heat insulating box 3 that is attached to the upper surface of the lower heat insulating box 2 and opens to the front. The lower heat insulating box body 2 is constructed by filling the space between an outer box 4 made of a steel plate and an inner box 5 built into the outer box 4 with a gap therebetween with a heat insulating material 6 such as polyurethane foam using an on-site foaming method. has been done. The inner box 5 is constructed by vacuum forming a synthetic resin plate, and is also integrally formed with a partition wall portion 5A that divides the interior into upper and lower sections, and the partition wall portion 5A is similarly filled with a heat insulating material 6. . A heat insulating partition member 7 is provided with a space above the partition wall portion 5A, the space above the partition member 7 is a refrigerator compartment 8, and the space below and above the partition wall portion 5A is a compartment 9. ,
The space below the partition wall portion 5A is defined as a freezing chamber 10.

At the back of the freezer compartment 10, a partition plate 11 having a heat insulating material on the back side is installed vertically with a gap from the back side of the inner box 5, and a freezer compartment cooler 13 is installed vertically in a cold air passage 12 formed behind the partition plate 11. has been done. The cold air cooled by the freezer compartment cooler 13 is sucked in by the freezer compartment blower 14 provided above, and is discharged into the freezer compartment 10 through the outlet 15 formed in the partition plate 11 in front of it. The suction port 1 formed at the bottom of the partition plate 11
6 and returns to the cold air passage 12. By circulating this cold air, the inside of the freezer compartment 10 is cooled to a freezing temperature of, for example, -20°C. 17 is a heat insulating door that closes the front opening of the freezer compartment 10, and a frame 18 attached to the inner surface
A basket 19 is placed on the frame 1.
The left and right sides of the door 17 are slidably supported by rails (not shown) formed on the left and right side walls of the inner box 5, so that the door 17 is attached to the lower insulation box 2 so as to be freely drawn out, and is linked to the opening and closing of the door 17. basket 19
can be freely stored and stored in the freezer compartment 10.

A cooler cover plate 21 having a heat insulating material on the upper surface is attached to the upper part of the refrigerator compartment 8 with a gap from the top surface of the refrigerator compartment 8, and a cooler 23 for the refrigerator compartment is provided in a cold air passage 22 formed above the refrigerator cover plate 21. It is being Refrigerator cooler 2
3. At the rear, there is provided a refrigerator compartment blower 25 covered by a heat insulating cover 24 which has a fan chamber 24A communicating with the cold air passage 22 inside. A duct 26 is formed which is open and whose upper end communicates with the cold air passage 22 via the blower chamber 24A. A part of the cold air cooled by the refrigerator compartment cooler 23 is sucked by the refrigerator compartment blower 25 and discharged into the refrigerator compartment 8 through the duct 26, and is passed through the suction formed at the front end of the cooler cover plate 21. The cold air returns to the cold air passage 22 through the port 27.
Reference numerals 29 and 30 designate double doors that are rotatably attached to the opening edge of the refrigerator compartment 8, and are provided with a plurality of pockets on the inner surface. Inside the non-pivot side end of the door 30, when the door 30 is closed, a gasket 32 on the inner peripheral surface of the doors 29, 30 is rotated by guide members 31, 31 provided above and below the opening edge of the refrigerator compartment 8. A partition body 34 forming a contact surface of 33 is rotatably attached with the vertical direction as an axis. 28 is an article mounting shelf.

Reference numeral 35 denotes a heat insulating door that closes the front opening of the compartment 9. A container 37 with an open top is placed and supported on a frame 36 attached to the inner surface, and the left and right sides of this frame 36 are the left and right side walls of the inner box 5. The door 35 is slidably supported by a rail (not shown) formed in the lower insulating box 2 so that it can be pulled out, and as the door 35 is opened and closed, the container 37 is moved into the compartment 9. It is now possible to pay and pay as you like. A projecting wall portion 5B that protrudes toward the refrigerator compartment 8 is provided in a portion of the inner box 5 located on the back side of the refrigerator compartment 8.
is formed to extend vertically, and this projecting wall portion 5
The duct member 3 extends vertically into the heat insulating material 6 in B.
8 will be buried. The duct member 38 has a duct 39 formed therein, the upper end of which communicates with the cold air passage 22 via the blower chamber 24A within the heat insulating cover 24, and the lower end of which opens at the back surface of the compartment 9 at a discharge port 39A. The discharge port 39A is opened and closed by a damper thermostat 40, and the upper part of the damper thermostat 40 is covered with a cover 42 communicating with a cold air discharge passage 41 formed in the partition member 7. The cold air discharge passage 41 has a plurality of discharge ports 43 opened at the lower surface of the front and center portions of the partition member 7 . Furthermore, at the rear of the partition member 7 and on the side of the cover 42, a cold air return passage 44 is formed which communicates the compartment 9 and the refrigerator compartment 8. The refrigerator room blower 25 rotates to suck in cold air from the front and blow it out to the side. A part of the cold air discharged from the blower 25 passes through the duct 39 and passes through the damper thermostat 40 from the discharge port 39A. The cold air flows into the cold air discharge passage 41, flows down through the discharge port 43 to the front and center of the container 37, and is circulated, returns to the rear of the refrigerator compartment 8 through the cold air return passage 44, and is cooled together with the circulating cold air in the refrigerator compartment 8. It returns to the cold air passage 22 through the suction port 27. The refrigerator compartment blower 25 repeatedly operates and stops depending on the temperature in the refrigerator compartment 8 to maintain a refrigerating temperature of +3°C in the refrigerator compartment 8. By controlling the heat generated by the heater 45 according to the temperature inside the compartment 9, the interior of the compartment 9 can be kept at an ice temperature storage temperature of 0°C to -3°C, or can be heated to a storage temperature of about +10°C for vegetables, etc. It is now possible to maintain the temperature suitable for storage.

Here, freezing temperature storage temperature refers to the temperature below freezing, but just before food freezes, which is based exclusively on the property that the freezing point of food is lower than the freezing point. By storing food in this temperature range, food can be It can be stored for a relatively long time without freezing by inhibiting the proliferation of bacteria, and furthermore, deterioration of flavor due to freezing can be prevented.

The upper insulating box body 3 is an outer box 47 made of steel plate that opens toward the front.
A heat insulating material 49 is foam-filled between the outer box 47 and the synthetic resin inner box 48, and the upper and lower heat insulating boxes 3 , and a duct member 50 is buried therein. The duct member 50 has an upper end inside the inner box 48.
A discharge port 52A opens into an upper chamber 51 formed inside, and the lower end is connected to the cold air passage 22 through a blower chamber 24A.
A duct 52 is formed which communicates with the. Discharge port 52A
is provided with a damper thermostat 53 that senses the temperature of the upper chamber 51 and opens and closes the discharge port 52A.
It is blocked at 4. A part of the cold air discharged by the refrigerator compartment blower 25 passes through the duct 52, passes through the damper thermostat 53, is discharged into the upper chamber 51 from the discharge ports 54A formed on the left and right sides of the cover 54, and then is insulated from above and below. The upper chamber 5 penetrates through the boxes 3 and 2.
The cold air returns to the cold air passage 22 through a cold air return passage 56 that communicates the front lower part of the air with the cold air passage 22. Upper chamber 51
By changing the setting of the damper thermostat 53, the inside temperature can be selected from a refrigeration temperature such as +3°C to a temperature suitable for storing wine, etc., such as +15°C. Further, 57 is a heat insulating door of the upper chamber 51 whose upper end is pivotally supported by a hinge 58. Furthermore, 59 is a control box that protrudes forward between the door 57 and 29, 30, and is attached to the upper end of the front of the lower insulation box 2 across the left and right sides, and various switches are exposed on the front, and lighting lights are installed inside. 60.

A machine room 63 is formed at the bottom of the lower heat insulating box body 2 and is located between the base leg 62 and the bottom surface 4A of the outer box 4 and is open at least to the front. An electric compressor 64 and a condenser 65 that constitute a refrigerant circuit are housed and installed.
Reference numerals 66 and 66 are wheel devices for transportation attached to the pedestal 62. Reference numeral 68 denotes a machine room cover that hides the front opening of the machine room 63, and a step board 69 is attached to the back surface of the cover that extends substantially horizontally from the upper part of the machine room 63 toward the back along the bottom surface 4A. This step board 6
9 and the machine room cover 68 may be integrally molded from synthetic resin or the like. Rollers 70, 70 are attached to the lower ends of both sides of the machine room cover 68 to ground and slide on the floor, and the step board 69 is attached to a pair of rollers 71 attached to the inner surface of the outer box 4 on both sides of the front of the machine room 63. Therefore, it is supported in a slidable manner. As a result, the machine room cover 68 and the step board 69 can be slid back and forth, and when delivering parts to the upper chamber 51, the step board 69 can also be moved by pulling the machine room cover 68 toward you. Come out. Therefore, this step board 6
You can work easily by riding on the 9. Further, since the step board 69 can be pulled out in conjunction with the machine room cover 68 at this time, the double effort of removing the machine room cover 68 and pulling out or attaching the step board 69 can be eliminated. Further, when repairing the internal parts of the machine room 63, etc., it can be done by removing the machine room cover 68 and the step board 69. Furthermore, 73 is a stopper formed protruding from the rear of the step board 69, and 74, 74 are storage positioning protrusions formed at a predetermined interval on the front part.
Furthermore, the rear part constitutes a stable stepping surface by being supported by rollers 71.

(g) Effects of the invention As detailed above, according to the invention, the step board is placed on a pair of left and right rollers attached to the side wall of the machine room, so moving the machine room cover forward can You can easily pull out the step board. Also,
Since the space above the condenser is used to store the step board, the step board absorbs the heat of the condenser and prevents it from being transmitted to the machine room ceiling wall, and this heat sticks to the step board. Removes moisture.

[Brief explanation of the drawing]

Each figure shows an embodiment of the present invention. Figure 1 is a perspective view of the refrigerator, Figure 2 is a front view of the refrigerator excluding each door, and Figure 3 is a cross section taken along line A-A of Figure 2 including the door. figure,
FIG. 4 is a sectional view taken along the line B-B. 1... Refrigerator, 63... Machine room, 68... Machine room cover, 69... Step board, 70, 71... Roller.

Claims (1)

[Scope of utility model registration request] The refrigerator includes a machine room formed at the bottom of the refrigerator that stores mechanical parts such as an electric compressor and condenser, and a machine room cover that can be moved back and forth to close the opening of this machine room. A refrigerator comprising: a roller that contacts a floor surface; and a step board that is placed on a pair of left and right rollers attached to a side wall of a machine room and stored in a substantially horizontal state above a condenser.