JPH0245743Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a cooling device, in particular, a casing consisting of a mechanical part and a cooling part, which is configured so that it can be attached to a storage body so that only the cooling part can penetrate into the storage body. A blower port and a suction port are provided in the front surface of the cooling unit that faces the inside of the body, and an evaporator is housed within the cooling unit, and air outside the cooling unit is sucked into the cooling unit from the suction port. A blower is disposed opposite to the air outlet so that the air can be discharged from the air outlet, and the mechanical part includes a compressor for compressing the refrigerant and a condenser for liquefying the refrigerant compressed by the compressor. The present invention relates to a cooling device in which the evaporator, compressor, and condenser are connected by a pipe line for circulating refrigerant.

Conventionally, such a cooling device is installed in an arbitrary, for example, portable heat-insulated storage, and blows cold air cooled by an evaporator into the storage from an air outlet to cool food and drink stored in the storage. It does not have an ice making function.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cooling device with a simple structure that has an extremely efficient ice making function.

In order to achieve this object, according to the present invention, a casing consisting of a mechanical part and a cooling part is configured to be attachable to the storage body so that only the cooling part can be inserted into the storage body. A blower port and a suction port are provided in the front face of the cooling unit facing the cooling unit, and an evaporator is housed inside the cooling unit, and air outside the cooling unit is sucked into the cooling unit from the suction port. A blower is disposed opposite to the air outlet so that the air can be discharged from the air outlet, and the mechanical part includes a compressor for compressing refrigerant and a condenser for liquefying the refrigerant compressed by the compressor. In the cooling device, the evaporator, the compressor, and the condenser are housed and connected by a conduit for circulating refrigerant, and the evaporator is housed at the bottom of the cooling section and connected to the conduit from the condenser. A connected flat plate-shaped ice-making evaporator, and a fin-equipped cooling device disposed in the cooling unit above the ice-making evaporator and interposed between the pipe line to the compressor and the ice-making evaporator. and an evaporator, the suction port is disposed close to the ice-making evaporator so that an ice tray can be placed on the ice-making evaporator through the suction port, and the cooling section further includes: A cover plate interposed between the ice making evaporator and the cooling evaporator is in a closed position where the ice making evaporator is shielded from the ice making evaporator and allowing the ice making tray to be placed on the ice making evaporator. The cover plate is supported so as to be able to swing between an open position and an open position, and the cover plate is configured to guide water droplets that have fallen onto the cover plate out of the cooling unit through the suction port in the closed position. The upper surface is formed into a slope that descends toward the suction port, and the lower edge is connected to the lower edge of the suction port.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In FIG. 1, a door 2 is provided on the front surface of a storage body 1 made of a heat insulating material, which can be opened and closed freely, and a rectangular door 2 is provided on the rear surface of the storage body 1. A mounting hole 3 is drilled into which a cooling device 4 constructed according to the present invention is mounted. That is, the casing 5 of the cooling device 4 includes a cooling part 6 and a mechanical part 7, and the casing 5 is attached to the rear surface of the storage body 1 with the cooling part 6 projecting into the storage body 1 through the mounting hole 3. . As a result, the cold air from the cooling unit 6 circulates inside the refrigerator body 1, making it possible to cool food and drinks stored in the refrigerator interior 1, and also making it possible to obtain ice from the cooling unit 6. Become.

In FIG. 2, the cooling unit 6 consists of a rectangular box 8 with an open rear end and a support plate 9 that closes the open end of the box 8, and a heat insulating material 10 is attached to the support plate 9. The front surface of the cooling unit 6, that is, the front plate 8a of the box body 8, is provided with a circular air outlet 11 at the center of its upper part, and a rectangular suction port 12 extending between both sides at the lower part thereof. is drilled.
Further, a mesh body 13 is stretched over the air outlet 11, and on the back side of the front plate 8a, the air inside the storage body 1 is sucked into the cooling unit 6 through the suction port 12.
A blower 14 is mounted opposite the suction port 12 so that the air can be discharged from the suction port 12. Furthermore, the suction port 12 functions not only for sucking air into the cooling unit 6 but also as an opening for taking the ice tray 23 in and out.

At the rear of the cooling unit 6, that is, at the rear of the box 8 and the support plate 9, there are flanges 15, 16 extending outward.
are provided, and these flanges 15, 16
serves to connect the box body 8 and the support plate 9 to each other, and to attach the cooling device 4 to the storage body 1. That is, each flange 15, 16 is provided with a plurality of insertion holes 17 at intervals, and screw holes are provided on the rear surface of the storage body 1 around the mounting hole 3 in correspondence with each insertion hole 17. 18 are provided. Therefore, by screwing and tightening the screw hole members 19 inserted through the respective insertion holes 17 into the screw holes 18, the box body 8 and the support plate 9 are connected to each other, and the storage of the cooling device 4 is Attachment to the body 1 takes place.

At the rear of the cooling unit 6, that is, at the rear of the support plate 9,
A box-shaped mechanical part 7 is integrally provided, and windows 20 are provided on both sides and the rear of this mechanical part 7.
will be provided.

Referring also to FIG. 3, inside the cooling unit 6 are an ice-making evaporator 21 and a cooling evaporator 2.
2 are stored and arranged. Ice making evaporator 21
is disposed at the lower part of the cooling unit 6 facing the suction port 12, and is formed into a flat plate shape to support the ice tray 23. The cooling evaporator 22 is arranged above the ice-making evaporator 21, and is constructed by attaching a large number of fins 25 to a tube body 24 bent a plurality of times. Both evaporators 21 and 22 are fixed to the support plate 9, respectively.

On the other hand, various devices such as a compressor 26, a condenser 27, a strainer 28, and a capillary tube 51 are housed in the mechanical section 7.
Moreover, the capacitor 27 is arranged along the window 20 of the mechanical part 7 to facilitate heat radiation. Compressor 2
6, the condenser 27, the strainer 28, and the capillary tube 51 are connected in this order along the flow of the refrigerant, and the conduit 29 leading the refrigerant from the capillary tube 51 penetrates the support plate 9 and connects to the cooling section. 6, and further connected to an ice-making evaporator 21. Further, a pipe line 30 is provided which penetrates the support plate 9 from inside the cooling part 6, enters the mechanical part 7, and is connected to the compressor 26.
Inside, a cooling evaporator 22 is interposed between the pipe line 30 and the ice-making evaporator 21.

As clearly shown in FIGS. 4 to 6, the support plate 9 has a
A protrusion 35 is provided that protrudes toward the suction port 12 side. The upper surface 35a of this protrusion 35 is inclined downward toward the suction port 12 side.
One end of a cover plate 36 made of flexible synthetic resin is attached to the support plate 9 below this protrusion 35 .

The cover plate 36 covers both the evaporators 21 and 2.
2, a mounting part 38 which is to be attached to the support plate 9 with a screw part 37, a cover part 39 bent from the upper end of the mounting part 38 and extending toward the suction port 12, and the cover part 39 and a support portion 40 that is further bent. Cover part 39 and mounting part 3
The cover part 39 is vertically rotatable about the connecting part with the protrusion 8 as a fulcrum, and when it is in the open position where it has been rotated upward to the maximum extent until it comes into contact with the lower surface of the protrusion 35, the cover part 39 is almost completely rotated. It is set so that it is horizontal and the connection part with the support part 40 protrudes from the suction port 12. Further, a notch 41 is provided on the upper surface of the connecting portion between the cover portion 39 and the support portion 40, and the support portion 40 can be bent up and down by the notch 41. Furthermore, a clamping plate part 42 and a pair of clamping protrusions 43 and 44 are provided at the lower edge of the support part 40 to connect and clamp the lower edge of the suction port 12 . When the lower edge of the suction port 12 is held between the holding plate portion 42 and the holding protrusions 43 and 44, the cover portion 39 is in the closed position, and the upper surface of the plurality of covers 39 is downwardly moved toward the suction port 12 side. The upright length of the support portion 40 is set so that the support portion 40 is inclined. Further, a knob portion 45 is provided on the holding plate portion 42 in a protruding manner.

Furthermore, the cover part 39 of the cover plate 36 has two cuts in order to prevent the pipe line 29 and the pipe line 46 connecting between the ice-making evaporator 21 and the cooling evaporator 22 from getting in the way when the cover part 39 moves up and down. Notches 47 and 48 are provided.

A temperature control dial 31 is provided on the front of the cooling unit 6, and this dial 31 controls the operating states of various devices in the mechanical unit 7.
The temperature inside the cooling section 6 is adjusted.

Next, the operation of this embodiment will be described. By the operation of the compressor 26 in the mechanical section 7, the refrigerant is compressed and enters the condenser 27, where it radiates heat and becomes liquid. The liquefied refrigerant is passed through the strainer 28,
After successively passing through the capillary tube 51 and the conduit 29, a part of the refrigerant evaporates and absorbs heat in the ice-making evaporator 21, and the remaining refrigerant evaporates and absorbs heat in the cooling evaporator 22, and returns to the compressor 26. By circulating the refrigerant in this manner, the area near the ice-making evaporator 21 is cooled to a temperature at which ice can be made, and the area near the cooling evaporator 22 is cooled to a slightly higher temperature. Therefore, ice can be made by placing the ice making tray 23 containing water on the ice making evaporator 21. Further, the air sucked into the cooling unit 6 from the suction port 12 by the blower 14 is cooled while passing upward through the cooling evaporator 22, and
It is blown out from 1. Therefore, air circulates and flows between the storage body 1 and the cooling section 6, and the inside of the storage body 1 is efficiently cooled.

When the cover plate 36 is held in the closed position (see the solid line in FIG. 4), the ice making evaporator 21 is shielded from the suction port 12 and the cooling evaporator 22, and the ice making chamber 49 is defined. Therefore, it is possible to prevent the air sucked from the suction port 12 from flowing through the ice making chamber 49, shorten the ice making time, and prevent sublimation of the ice on the ice making tray 23. It can be prevented. Furthermore, water droplets falling from the cooling evaporator 22 and water droplets falling along the support plate 9 flow down on the cover plate 36 and are discharged into the storage body 1, thereby preventing water droplets from falling into the ice tray 23. can do.

Further, when taking out the ice tray 23 from the ice making chamber 49, it is sufficient to rotate the cover plate 36 upward to the open position (see the chain line in FIG. 4), and the ice tray 23 can be taken out very easily.

As another embodiment of the present invention, the temperature near the ice making chamber 49 may be detected and the blower 14 may be activated when ice making is completed. By doing so, the ice making time can be shortened. Furthermore, an on/off switch for the blower 14 is provided on the front of the cooling unit 6, and the switch is manually operated when making ice.
The operation may be stopped.

As described above, according to the present invention, the casing consisting of the mechanical part and the cooling part is configured to be attachable to the storage body so that only the cooling part can enter the storage body, and A ventilation port and a suction port are provided in the front surface of the cooling unit, and an evaporator is housed in the cooling unit, and air outside the cooling unit is sucked into the cooling unit through the suction port and discharged from the ventilation port. A blower is disposed opposite to the air outlet, and a compressor for compressing refrigerant and a condenser for liquefying the refrigerant compressed by the compressor are housed in the mechanical part, The evaporator, compressor and condenser are connected by a pipe line for circulating refrigerant,
In the cooling device, the evaporator includes a flat ice-making evaporator housed in the bottom of the cooling unit and connected to a conduit from the condenser, and disposed in the cooling unit above the ice-making evaporator. and a cooling evaporator with fins interposed between the pipe line to the compressor and the ice-making evaporator, and the suction port is used to place an ice-making tray on the ice-making evaporator through the suction port. A cover plate is disposed in a position close to the ice making evaporator so that the ice making evaporator may The cover plate is supported so as to be able to swing between a closed position for shielding the ice-making evaporator and an open position for allowing the ice-making tray to be placed on the ice-making evaporator, and the cover plate is in the closed position. In order to guide water droplets that have fallen onto the cover plate out of the cooling unit through the suction port, the upper surface is formed into a slope that descends toward the suction port, and the lower edge portion is formed on the lower side of the suction port. Since it is connected to the edge of the ice-making evaporator, if you place the ice-making tray on the ice-making evaporator and then swing and hold the cover plate in the closed position, the air inside the refrigerator that is sucked into the cooling unit from the suction port by the operation of the blower will be removed. , it can be directed to the cooling evaporator side without flowing around the ice-making evaporator and ice-making tray,
Therefore, the ice-making action by the ice-making evaporator can be performed extremely efficiently, the ice-making time can be shortened, and the ice in the ice-making tray can be prevented from sublimating. Moreover, when the cover plate is in the closed position, its upper surface is sloped downward toward the suction port, and its lower edge is connected to the lower edge of the suction port, so that the cooling evaporator Water droplets that condense and fall can be guided out of the casing through the suction port, thus effectively preventing water droplets from falling into the ice tray and from collecting large amounts of water droplets at the bottom of the cooling unit. can do. Furthermore, since the common cover plate is used both as the water droplet guide plate and as the partition plate for isolating the ice-making evaporator, the structure is simpler and costs can be reduced.

Further, by swinging the cover plate to the open position, the ice tray can be inserted and removed through the suction port without any hindrance.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the mounting structure of the device of the present invention on the storage body, Fig. 2 is a sectional view taken along the line - - of Fig. 1, and Fig. 3 is a perspective view showing the connection and arrangement of each device. FIG. 4 is an enlarged longitudinal sectional side view of the ice-making evaporator and its surroundings, FIG. 5 is a view taken in the direction of the arrow in FIG. 4, and FIG. 6 is an exploded perspective view showing the state in which the cover is attached. DESCRIPTION OF SYMBOLS 1... Storage body, 5... Casing, 6... Cooling part, 7... Mechanical part, 11... Ventilation port, 12... Suction port, 14... Air blower, 21... Ice-making evaporator, 22... Cooling evaporator, 23...ice tray, 26...compressor, 27...condenser, 2
8...Strainer, 29, 30...Pipe line, 36...
...Cover plate, 51...Capillary tube.

Claims (1)

[Scope of utility model registration request] Casing 6 consisting of mechanical part 7 and cooling part 6
However, the cooling unit 6 is configured to be able to be attached to the storage unit 1 so that only the cooling unit 6 can enter into the storage unit 1, and the front side of the cooling unit 6 facing the interior of the storage unit 1 is provided with an air outlet 1.
1 and a suction port 12 are bored, and evaporators 21 and 22 are housed in the cooling section 6, and air from outside the cooling section 6 is sucked into the cooling section 6 through the suction port 12 and blown. An air blower 14 is disposed opposite to the air outlet 11 so that the air can be discharged from the air outlet 11, and a compressor 26 for compressing refrigerant is provided in the mechanical section 6, and a compressor 26 for liquefying the refrigerant compressed by the compressor 26 is provided in the mechanical section 6. In the cooling device, the evaporators 21, 22, the compressor 26, and the condenser 27 are connected by pipes 29, 30 for circulating the refrigerant. includes a flat ice-making evaporator 21 housed in the bottom of the cooling unit 6 and connected to a pipe line 29 from the condenser 27; The pipe line 30 to the compressor 26 and the fin-equipped cooling evaporator 22 are interposed between the ice-making evaporator 21, and the suction port 12 passes through the suction port 12 to the ice-making evaporator 21. It is arranged in a position close to the ice-making evaporator 21 so that an ice-making tray 23 can be placed on the evaporator 21, and an ice-making tray 23 is disposed in the cooling section 6 between the ice-making and cooling evaporators 21 and 22. The cover plate 36 that
The suction port 12 and the cooling evaporator 22
The cover plate 36 is supported so as to be able to swing between a closed position where the ice-making evaporator 21 is covered and an open position where the ice-making tray 23 is allowed to be placed on the ice-making evaporator 21. , in the closed position, the upper surface of the cover plate 36 is connected to the suction port 12 so that water droplets that have fallen onto the cover plate 36 can be guided out of the cooling unit 6 through the suction port 12.
1. A cooling device characterized in that the cooling device is formed on a slope that descends toward the suction port 12, and a lower edge portion thereof is connected to a lower edge of the suction port 12.