CN102947658B - Cold storage - Google Patents

Abstract

The present invention provides a refrigerator in which heat insulation from a machine room to the inside of the refrigerator is improved. In a heat-insulating box including an outer box (17) made of metal, an inner box (18) made of resin, and a heat insulating material (19) filled between the outer box (17) and the inner box (18) The refrigerator (11) of (12) includes a machine room (31) formed by a base member (20) made of resin, and the upper part of the base member (20) and the rear part of the outer box (17) are A back panel (15) is connected, and a lower portion of the base member (20) is connected to a bottom panel (16) forming a bottom portion of the outer case (17).

Description

Cold storage

technical field

The present invention relates to a refrigerator in which a machine room provided behind a lower portion of a refrigerator main body is formed of a resin material.

Background technique

Conventionally, this type of refrigerator has formed a recessed resin on the top surface of a machine room that accommodates the functional components of the refrigerator formed behind the lower part of the refrigerator main body, and constructed the base with metal members such as iron plates (for example, refer to Patent Document 1). .

FIG. 7 is a perspective view of main parts of a conventional machine room provided in the lower back of the refrigerator described in Patent Document 1. FIG. As shown in FIG. 7 , it includes: an outer box 1; a base 2 made of metal; a machine room 4 formed by a resin component 3 arranged on the base 2 to form a top surface, a back surface, and a right side; Compressor 5 in chamber 4.

Prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2001-41635

Contents of the invention

The problem to be solved by the invention

However, in the above-mentioned conventional structure, since the machine room is formed of resin components, the conduction of the heat emitted from the compressor arranged in the machine room to the outside of the machine room is reduced, and the temperature inside the refrigerator is prevented from rising, so it has the effect of saving energy. However, since the compressor is arranged on the base made of metal parts, it is considered that the heat in the machine room is transmitted from the base to the inside of the refrigerator and affects the temperature inside the refrigerator.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a refrigerator in which heat insulation from a machine room to the inside of the refrigerator is improved.

method used to solve the problem

In order to solve the above-mentioned conventional problems, the refrigerator of the present invention has a heat-insulating box including a metal outer box, a resin-made inner box, and a heat insulating box filled between the outer box and the inner box. The above-mentioned refrigerator includes a machine room formed by a base member made of resin, the upper part of the base member is connected to the back panel forming the back part of the outer box, and the lower part of the base member is connected to the bottom surface of the outer box. bottom panel connection.

Thereby, heat transfer into a refrigerator can be reduced, and the refrigerator with higher heat insulation performance can be provided.

Invention effect

Since the refrigerator of the present invention can reduce heat transfer to the inside of the refrigerator and further improve heat insulation performance, it is possible to provide a refrigerator excellent in energy saving performance.

Description of drawings

Fig. 1 is a schematic cross-sectional view of a refrigerator according to Embodiment 1 of the present invention.

Fig. 2 is a schematic diagram of the bottom of the refrigerator according to Embodiment 1 of the present invention.

FIG. 3 is a schematic diagram of a first handle portion according to Embodiment 1 of the present invention.

4 is a schematic diagram of a base member according to Embodiment 1 of the present invention.

Fig. 5 is a schematic diagram at the time of transportation of the refrigerator according to Embodiment 1 of the present invention.

Fig. 6 is a schematic diagram at the time of transportation of the refrigerator according to Embodiment 1 of the present invention.

Fig. 7 is a schematic view showing the structure of the lower back of a conventional refrigerator.

Detailed ways

The first invention is a refrigerator comprising: a heat insulating box including a metal outer box, a resin inner box, and a heat insulating material filled between the outer box and the inner box; a back panel on the back side of the box; a bottom panel forming the bottom; and a machine compartment formed at the lower portion of the back panel. In this refrigerator, the above-mentioned machine compartment is formed by a resin base member, and The above-mentioned back panel is connected, and the lower part is connected with the above-mentioned bottom panel. Thereby, heat generated in the machine room is less likely to be transmitted to the inside of the refrigerator, heat insulation can be improved, and a refrigerator with high energy-saving performance can be provided.

In the second invention, especially in the first invention, at least an evaporating pan for retaining and evaporating defrosting water is provided in the above-mentioned machine room, so the evaporating pan is housed in a base member made of resin, so the generated heat is evaporated. It is not easy to transmit the disk into the refrigerator, the heat insulation performance can be improved, and the refrigerator with high energy-saving performance can be improved.

In the third invention, particularly in the first or second invention, the lower portion of the base member has a folded portion, the folded portion is connected to the bottom panel, and the heat insulating material is filled in the folded portion. Thereby, since the heat insulating material can be filled between the bottom surface part of a base member, and a folded-back part, strength can be ensured, and deformation|transformation around a leg part can be reduced.

In the 4th invention, especially in the 3rd invention, the turning-back part forms the handle part which fits a hand at the time of conveyance. Thereby, since the handle part can be comprised with the base member made of resin, a complex shape can be formed easily, and it can comprise the shape which is easy to hold for a carrier.

In the fifth invention, in any one of the first to fourth inventions, the base member is composed of a member having a substantially U-shaped cross section integrally formed with a top surface, a back surface, and a bottom surface. Thereby, the machine compartment space can be constituted only by the base member, and since the base member can be formed into a complicated shape by being made of resin, useless space can be reduced, and thus a refrigerator with an increased interior volume can be provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited by this embodiment.

(implementation mode 1)

1 is a schematic sectional view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a schematic diagram of the bottom of the refrigerator according to Embodiment 1 of the present invention, and FIG. 3 is a schematic diagram of a first handle portion according to Embodiment 1 of the present invention. , FIG. 4 is a schematic diagram of a base member according to Embodiment 1 of the present invention.

In FIGS. 1 to 4 , refrigerator 11 includes heat insulating box 12 and door 13 attached so as to be freely openable and closable.

Refrigerator 11 is divided into a plurality of storage rooms 44 . Specifically, refrigerator 11 is divided into refrigerator compartment 44a, switching compartment 44b, vegetable compartment 44c, and freezer compartment 44d in order from the top.

The heat insulation box body 12 includes an outer box 17 and an inner box 18 , and a heat insulating material 19 is filled between the outer box 17 and the inner box 18 . The outer box 17 is made of metal, and includes: a top side panel 14 formed by integrally bending the top surface and both side surfaces of the periphery (outer shell) of the refrigerator 11; a back panel 15 forming the back; Bottom panel 16. Furthermore, the top side panel 14 , the back panel 15 , and the bottom panel 16 are fixed by welding or fixed by screws or the like to form a metal outer case 17 .

Resin base member 20 for coupling and fixing rear panel 15 and bottom panel 16 is provided behind the bottom surface of refrigerator 11 . The base member 20 is a substantially U-shaped member having a top surface, a back surface, and a bottom surface. The back panel 15 of the outer case 17 is connected and fixed to the top surface located above the base member 20 . In addition, the bottom surface of the base member 20 integrally includes the folded portion 21 , and the folded portion 21 located at the lower portion of the base member 20 is connected and fixed to the bottom panel 16 of the refrigerator 11 .

Therefore, as shown in FIG. 1 , a part of the folded portion 21 is inserted into the space formed between the inner box 18 and the bottom panel 16 .

In the case of the present embodiment, refrigerator 11 is filled with heat insulating material 19 after base member 20 is attached to inner box 18 or outer box 17 . The heat insulating material 19 is filled between the inner box 18 , the back panel 15 of the connected outer box 17 , the base member 20 , and the bottom panel 16 . Further, as described above, since the folded portion 21 is inserted into the space formed between the inner box 18 and the bottom panel 16 , the heat insulating material 19 is filled between the bottom surface of the base member 20 and the folded portion 21 .

In addition, as shown in FIG. 4 , since the base member 20 has the side wall 20 a, the heat insulating material 19 is also filled between the side wall 20 a and the top side panel 14 of the outer box 17 .

Thereby, even if resin-made base member 20 is formed in the rear lower part of refrigerator 11, rigidity and intensity|strength with respect to the weight of refrigerator 11 can be ensured.

In addition, since the base member 20 has the folded part 21, the wall thickness dimension (thickness) of the heat insulating material 19 filled in the lower part of the base member 20 can be compared with the wall between the bottom surface part of the freezer compartment 44d and the bottom panel 16. Thick to thin.

Base member 20 suppresses the degree to which heat generated in base member 20 is transferred to the interior of refrigerator 11 . That is, it is possible to reduce the influence of the internal heat of the base member 20 on raising the temperature in the cabinet.

The heat insulating box 12 has a first machine room 22 in a recess formed by recessing the rear portion of the top surface. A compressor 23 , a condenser 24 , a condenser cooling fan (not shown), and the like are housed in the first machine room 22 . The base 22a to which the compressor 23, the condenser 24, the condenser cooling fan (not shown), etc. are fixed is made of resin. Therefore, it is possible to reduce the heat generated from the above-mentioned functional components in the resin-made first machine compartment 22 being transferred to the base 22a and intruding into the adjacent refrigerating compartment 44a through the heat insulating material 19 .

Cooling chamber 25 is provided between outer box 17 and inner box 18 on the back surface of refrigerator 11 . Be provided with in cooling room 25: Cooler 26; Be used to forcibly make the fan 27 in the storehouse of cold air convection; The radiation heater 28 that defrosting is carried out to the frost that is attached to Cooler 26 during cooling; a drain pan 29 for water defrosted by the heating of the radiant heater 28 ; and a drain pipe 30 for draining the water received by the drain pan 29 . In addition, the water discharged from the drain pipe 30 accumulates in the evaporation pan 32 arranged in the second machine room 31 . The second machine chamber 31 is a portion constituted by the base member 20 made of resin. In addition, the evaporation tray 32 is also made of resin. That is, it is configured to store the defrosted water of the cooler 26 in the evaporator 32 .

The second machine compartment 31 is disposed behind the freezer compartment 44d.

As described above, since the folded portion 21 is also filled with the heat insulating material 19 , the lower portion of the base member 20 , that is, the lower portion of the second machine chamber 31 is also filled with the heat insulating material 19 and buried. Thereby, the strength of the second machine chamber 31, especially the strength of the lower part can be ensured.

In addition, a condensation pipe 33 extending from the condenser 24 is arranged so as to pass through the inside of the evaporation pan 32 . That is, it is arranged so that a part of the condensation pipe 33 is submerged in the evaporation pan 32 . Then, a part of the condensation pipe 33 submerged in the evaporation pan 32 becomes a dipping pipe 34 .

In addition, on the left and right sides of the front surface of the bottom of the refrigerator 11, for use when the refrigerator 11 is transported, first handles 40 are provided in the same shape on the left and right, and the first handle 40a on the left and the first handle 40b on the right are arranged. The first handle portion 40 is formed of resin, and has a hole 41 into which a hand can be inserted, and a handle portion 42 around the hole 41 is provided with a hand.

Moreover, the second handle part 43 is formed in the folded part 21 of the base member 20 at a position facing the handle part 42 of the first handle part 40b provided on the right side.

The operation and action of refrigerator 11 configured as above will be described below.

First, the operation of the refrigeration cycle will be described. According to the set temperature in the refrigerator, a refrigeration cycle is operated according to a signal from a control board (not shown), and a cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 23 dissipates heat in the condenser 34 , the condensation pipe 33 , and the dipping pipe 34 , condenses and liquefies, and reaches a capillary (not shown). Afterwards, heat exchange is performed between the capillary and the suction line (not shown) and the refrigerant is decompressed to become a low-temperature and low-pressure liquid refrigerant, which reaches the cooler 26 .

Thereafter, by the operation of interior fan 27, heat exchange is performed with the air in storage chamber 44 formed by the inner case, and the refrigerant in cooler 26 evaporates and vaporizes. The inside of each storage chamber 44 is cooled by distributing low-temperature cool air by means of a damper (not shown) or the like. Refrigerant leaving cooler 26 is drawn into compressor 23 via a suction line.

After cooling each store room 44 for a certain period of time, the compressor 23 is stopped and the radiation heater 28 is energized in order to remove frost adhering to the cooler 26 . Then, the frost adhering to the cooler 26 dissolves, drips onto the drain pan 29 , passes through the drain pipe 30 , and accumulates in the evaporation pan 32 .

After removing the frost from the cooler 26, the energization of the radiant heater 28 is terminated, and the compressor 23 is operated again. The water accumulated in the evaporation pan 32 is heated and evaporated by the dip tube 34 during the operation of the compressor 23 .

Next, when conveying the refrigerator 11, it demonstrates. When transporting the refrigerator 11, as shown in FIG. 5 , when the refrigerator 11 is transported with an inclination to the rear, one person can hold the two ends 50 of the upper back of the refrigerator, and the other person can insert their hands into the first handle. 40 holes 41 for transportation.

In addition, as shown in FIG. 6 , when the refrigerator 11 is transported obliquely in the lateral direction, one person can hold both ends 51 of the upper side surface of the refrigerator 11 and the other can hold the straps provided on the first handle 40 b. Hand 42 and second handle 43 for carrying. Here, the second handle portion 43 is provided at a position facing the handle portion 42 of the first handle portion 40b provided on the right side when viewed from the front of the refrigerator 11, so that the right side surface of the refrigerator 11 becomes the upper side. Handling method.

Therefore, it is possible to arbitrarily select conveyance inclined backward and conveyance inclined laterally. In addition, there is no problem in that the position where the second handle portion 43 is formed is formed at a position opposite to the first handle portion 40 b on the right side. In addition, since it is provided at two positions facing the left first handle 40a and the right first handle 40b, it can be transported by tilting to either side during transport, so it is convenient for the transporter.

As described above, in this embodiment, the water accumulated in the evaporator 32 is heated and evaporated by the immersion pipe 34, and at the same time, the temperature of the atmosphere around the evaporator 32 is raised due to the heat of the immersion pipe 34, and the cooling effect of the refrigerator is increased. The interior of the chamber 11 conducts heat to affect the temperature inside the chamber. However, by adopting a structure in which the evaporating tray 32 is arranged on the resin base member 20 provided at the bottom of the back side of the refrigerator 11, compared with a base member made of metal, by using a resin base member, it is possible to reduce the pressure from the base member. The heat conduction of 20 has an influence on the temperature in the storage, and a refrigerator with high energy-saving performance can be provided.

In addition, the base member 20 has a folded portion 21 on the bottom surface thereof, the folded portion 21 is connected to the bottom panel 16 , and a heat insulating material is filled in the folded portion 21 . Accordingly, the strength of the base member 20 can be increased, and deformation around the legs can be reduced.

In addition, a structure is adopted in which the second handle portion 43 for holding hands during transportation is formed on the folded portion 21 of the base member 20 . Thus, the cost of the handle and the like when transporting the refrigerator 11 is generally increased due to the method of attaching other components, etc., but by arranging the base member 20 made of resin, the handle can be configured, so it can be easily formed into a complicated shape. , can constitute a shape that is easy to hold for the carrier.

In addition, since the base member 20 is filled with a heat insulating material and structurally reinforced by the heat insulating material, the second handle portion 43 can also adopt a safe and secure structure in terms of strength.

In addition, the base member 20 is composed of a member having a top surface, a back surface, and a bottom surface with a substantially U-shaped cross section. Thereby, the second machine room 31 in which the evaporation pan 32 is accommodated can be constituted by only the base member 20 . In addition, since the base member 20 is made of resin, it can be formed into a complicated shape and only a necessary space can be formed, compared with sheet metal processing using metal. Therefore, since the useless space can be eliminated, the refrigerator which is easy to use and which increased the internal volume of a refrigerator can be provided.

In addition, in this embodiment, although 44 d of freezer compartments are made into the lowest part, the structure which may be set as the vegetable compartment 44c in the lowest part is good. In addition, although the structure in which the compressor 23 and the like are arranged in the rear portion of the top surface of the refrigerator is provided, it is also possible to adopt a structure in which the compressor 23 and the like are arranged on the base member 20 on which the evaporator tray 32 is arranged. The purpose of the present invention is achieved, so there is no problem.

Industrial Utilization Possibility

As described above, the refrigerator of the present invention can reduce the heat conduction from the heat source to the inside of the refrigerator, so it can be used as a structure for commercial refrigerators, vending machines, and other cooling equipment.

Description of reference symbols

11 cold storage

12 heat insulation box

15 back panel

16 bottom panel

17 outer boxes

18 inner boxes

19 insulation material

20 base parts

21 return department

32 evaporator

43 second handle

Claims (4)

1. a freezer, is characterized in that:

It has heat insulating box, this heat insulating box comprise metal outer container, resinous interior case and be filled in described outer container and described interior case between heat-barrier material,

Described freezer comprises the Machine Room being formed by resinous base component,

The top of described base component is connected with the backplate of the back part that forms described outer container, and the bottom of described base component is connected with the bottom panel of the bottom surface sections that forms described outer container,

Described base component has return portion in bottom,

Described return portion is connected with described bottom panel, is filled with heat-barrier material in described return portion.

2. freezer as claimed in claim 1, is characterized in that:

In described Machine Room, dispose the evaporating pan that accumulates defrost water and make its evaporation.

3. freezer as claimed in claim 1, is characterized in that:

Be formed with the handle portion of giving a hand in described return portion.

4. freezer as claimed in claim 1, is characterized in that:

Described base component, forms top part, back part, bottom surface sections.