JPH0424386Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention relates to a refrigerator equipped with a top table.

(b) Prior art Japanese Utility Model Application Publications No. 1982-13492 and No. 58-13493 disclose an upper hinge at the upper front of an insulating box and a machine room arranged in parallel on the side of the insulating box. A refrigerator is shown in which a horizontally long support member that supports the door switch and the door switch are provided astride, and a top table that covers the top surface of the support member, the insulation box, and the machine room is provided to form a space that becomes a wiring duct. .

According to such a configuration, the lower wall of the support member is cooled by the cold air leaking from inside the refrigerator during the opening time of the insulation door of the insulation box, and dew is generated not only on the lower surface of this lower wall but also on the upper surface. As a result, the upper hinge and door switch located inside the wiring duct become wet with dew, resulting in disadvantages such as corrosion of the upper hinge and generation of electrical leakage in the door switch.

(c) Purpose of the invention The purpose of this invention is to solve the drawbacks of the prior art.

(d) Structure of the invention The invention consists of a top table that covers the top surface spanning an insulating box and a machine room that are arranged side by side, and a top table that is covered by the front part of the top table and extends across the insulating box and the machine room. The support member has a wiring duct formed between it and the front part of the top table, the insulation door that is supported by this support member and opens and closes the front opening of the insulation box, and the wiring inside the wiring duct that opens and closes the insulation door. In the refrigerator equipped with a door switch for detection, a cover is provided to cover the front surface of the machine room, an exhaust path for exhausting warm air from the machine room is provided in the upper part of the cover, and an opening is provided to communicate with the exhaust path. The supporting member is provided with an air intake passage for introducing warm air from the machine room into the wiring duct, and a gap is provided between the lower part of the curved portion of the top table and the supporting member.

(E) Example of implementation of the invention An example of implementation of the invention will be explained below with reference to the drawings.
is a horizontally long refrigerator called an under-counter refrigerator, which is installed in a cooking area of a restaurant, etc., and includes a horizontally long insulation box 2 with a front opening, a machine room 3 formed on the left side of this insulation box, and a space between the insulation box and the machine. A metal top table 4 that covers the top of the room and serves as a cooking table.
It is composed of. The insulation box is rotatably supported by a pair of upper and lower hinges 6A and 6B, and has two double-sided insulation doors 5A and 5B that open and close the front opening. Door switches 7A and 7B that turn on and off the interior lights,
installation legs 8, 8 fixed to the lower surface and adjustable in height;
It is equipped with a cooler (not shown) that cools the inside of the refrigerator.

Reference numeral 9 denotes a metal reinforcing and supporting member disposed astride the front upper part of the insulation box and the machine room, and the upper wall 9
A. It is composed of a lower wall 9B and a rear wall 9C, forming a substantially U-shape in which the lower wall 9B protrudes forward from the upper wall 9A, and the upper portions of both doors are supported at both ends of the lower wall 9B of the insulation box side portion 9A, respectively. Upper hinges 6A, 6A, door switches 7A, 7B are fixed between these hinges, and two parts are cut out and bent at right angles downward in the lower wall 9B of the machine room side part 9ro. Engagement pieces 10, 10, and an elastic pressing piece 1 located between the engagement pieces and fixed to the lower surface.
1, and a curved portion 4 as shown in FIG.
A is engaged with the lower wall 9B, and the back wall 4B is fixed to the upper part of the back of the insulation box 2 and the machine room 3.
covered from the front. The machine room includes a compressor C forming a refrigeration cycle together with the cooler;
It houses and installs a condenser D, an electrical equipment box F equipped with an operation panel E on the front, etc., and includes the machine room side part 9 of the support member 9 that becomes the front upper frame, the front lower frame 12, and the rear upper part. The frame 13 and the lower back frame 14 constitute a skeleton, and the side and back surfaces are covered with substantially L-shaped metal plates 15. Reference numeral 16 denotes an L-shaped metal receiving member fixed to the front surface of the lower front frame 12, and has two receiving holes 17, 17 formed therein. Support the chamber cover. Reference numeral 18 denotes a removable metal machine room cover located in front of the front surface of the machine room 3, with an exhaust air passage 19A at the top, an intake air passage 19B at the bottom, and an opening 19C at the center. It consists of a front wall 20 and a peripheral wall 21, which have engagement holes 22, 22 corresponding to the engagement pieces 10, 10 in the upper wall 21A, and holes 17, 22 in the lower wall 21B corresponding to the receiving holes 17, 17. While forming the insert pieces 23, 23, the door 5
A projecting piece 24 is formed from the rear end of the side wall 21C opposite to the side surface on the hinge side of A and extends toward the insulation box side, the other end of which touches or is very close to the side surface of the insulation box 2, and the engagement piece 10, 10 by engaging the engagement holes 22, 22, and inserting the insertion pieces 23, 23 into the receiving holes 17, 17, the peripheral wall 21 is supported in a loosely fitted state.
It is also fixed by the elasticity of the pressing piece 11 in contact with the upper wall 21A. Note that air intake and exhaust in the machine room 3 are indicated by arrows in FIG.

25 is a wiring duct defined by the top table 4 and the support member 9, and lead wires 26A, 26B extending from the electrical equipment box F to the door switches 7A, 7B.
and connectors 27A, 2 to which this lead wire is connected.
It stores 7B. Reference numeral 28 denotes an exhaust passage formed in the upper wall 21A of the peripheral wall 21 of the cover 18, which is the upper front surface of the machine room 3, through which a part of the warm air heated by the compressor and condenser is discharged to the outside. This exhaust path is connected to the opening surface of the machine room 3 as shown in FIG.
It may also be formed between the peripheral wall 21 and the upper wall 21A.
Reference numeral 29 denotes an intake passage formed in the lower wall 9B of the machine room side portion 9RO of the support member 9 located above the exhaust passage, and guides warm air discharged from the exhaust passage into the wiring duct 25. This intake path is as shown in Figure 5.
It may be formed in the rear wall 9C of the machine room side portion 9RO of the support member 9 and serve as a guide hole for the lead wires 26A, 26B to directly guide warm air from the machine room 3 into the wiring duct 25.

According to such a configuration, a part of the warm air in the machine room 3 is always guided into the wiring duct 25 from the air intake path 29,
By heating the inside of this wiring duct, the lower wall 9 of the supporting member 9 is heated.
The upper hinge 6
A, door switch 7A, 7B, lead wire 26A, 2
6B and the connectors 27A, 27B are maintained at a temperature above the dew point, resulting in corrosion of the upper hinge 6A and door switches 7A, 7B due to condensation.
It is possible to prevent electrical leakage. Also, the intake path 29
is formed at the upper front of the machine room 3, so warm air can be supplied into the wiring duct 25 regardless of whether the cover 18 is removed.

(f) Effects of the invention Since the invention is constructed as described above, warm air from the machine room can be easily introduced into the wiring duct without resisting the upward airflow with an extremely simple construction. . Therefore, dew condensation on the hinge and door switch can be prevented, and corrosion of the hinge portion and electrical leakage of the door switch can be reliably prevented.

[Brief explanation of the drawing]

The drawings all show embodiments of the refrigerator according to the present invention.
The figure is an exploded perspective view of essential parts, Figure 2 is a front view, Figure 3 is a sectional view taken along line A-A' in Figure 2, Figure 4 is an enlarged view of Figure 3B, and Figure 5 corresponds to Figure 4. FIG. 6 is a vertical cross-sectional view of another embodiment. 2...Insulation box, 3...Machine room, 4...Top table, 5A, 5B...Insulation door, 6A...Upper hinge, 7A, 7B...Door switch, 9...Support member, 25...Wiring Duct, 26A, 26B...Lead wire, 29...Intake path.

Claims (1)

[Scope of utility model registration request] A top table covering the upper surface of the insulation box and the machine room arranged in parallel; A refrigerator comprising a support member in which a wiring duct is formed, an insulation door supported by the support member to open and close the front opening of a heat insulation box, and a door switch that detects opening and closing of the insulation door wired inside the wiring duct. A cover is provided to cover the front surface of the machine room, and an exhaust path is provided on the top of the cover to exhaust warm air from the machine room, and a wiring duct is opened to communicate with the exhaust path to carry warm air from the machine room. A refrigerator characterized in that an intake passage for introducing air into the refrigerator is provided in the support member, and a gap is provided between the lower part of the curved part of the top table and the support member.