JP2023154831A - refrigerator - Google Patents

Abstract

To provide a refrigerator in which a refrigerant pipe can be easily arranged at a predetermined position inside a heat insulation wall.SOLUTION: In a refrigerator 10, a lower side wall part 224 extending along a left-right direction is formed on the side of a lower end of a front surface 222 of a partition wall body 221. A refrigerant pipe 24 is arranged between the front surface 222 of the partition wall body 221 and a front plate part 23. The refrigerant pipe 24 comprises a first pipe extension part 241 extending along the left-right direction, a second pipe extension part 242 extending along the left-right direction at a position separated from the first pipe extension part 241, and a pipe curve part 243 curved and formed so as to connect an end part of the first pipe extension part 241 and an end part of the second pipe extension part 242. The pipe curve part 243 of the refrigerant pipe 24 is in contact with an upper side wall part 223 or the lower side wall part 224 of the partition wall body 221.SELECTED DRAWING: Figure 6

Description

The present invention relates to a refrigerator having refrigerant piping.

In a typical refrigerator, the internal temperature of each storage compartment is cooled to a predetermined temperature range by blowing cold air cooled by a refrigerant compression type refrigeration cycle to each storage compartment such as a refrigerator compartment. This refrigeration cycle includes a compressor, a condenser, an expansion means, and an evaporator, and these various components are connected via refrigerant piping. Refrigerant piping of the refrigeration cycle is routed inside the refrigerator body in order to interconnect each component of the refrigeration cycle.

Referring to Patent Document 1, a part of the refrigerant pipe is routed near the surface of the heat insulating box in order to prevent dew condensation on the heat insulating box.

Utility Model Publication No. 6-64082

However, in the invention described in the above-mentioned patent document, there is room for improvement from the viewpoint of appropriately arranging the refrigerant piping.

The problem will be described in detail with reference to FIG. 8. Here, a cross-sectional view of the vicinity of the front end of the heat insulating wall 100 that partitions the storage rooms is shown. A refrigerant pipe 103 is disposed near the front end of the heat insulating wall 100 . Specifically, a refrigerant pipe 103 is disposed between the front surface of the heat insulating wall body 101 and the front plate 102. By doing so, the temperature of the front plate 102 is increased by the heating refrigerant flowing inside the refrigerant pipe 103, and dew condensation on the exposed surface of the front plate 102 is suppressed. Further, ribs 104 are formed to regulate the position of the refrigerant pipe 103 to a predetermined position. The rib 104 is a wall-shaped portion that projects forward.

Here, the shape and position of the refrigerant pipe 103 include tolerances. For this reason, if the refrigerant pipe 103 is placed in front of the rib 104 as shown by the dotted line, the refrigerant pipe 103 will be sandwiched between the rib 104 and the front plate 102. If this happens, the front plate 102 may be deformed, resulting in poor appearance or condensation.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a refrigerator in which refrigerant piping can be easily arranged at a predetermined position inside a heat insulating wall.

The refrigerator of the present invention cools a first storage compartment, a second storage compartment, a partition wall that partitions the first storage compartment and the second storage compartment, and the first storage compartment and the second storage compartment. a refrigeration cycle, the refrigeration cycle has a refrigerant pipe through which a refrigerant flows, and the partition wall includes a partition wall main body portion, a front plate portion that closes a front surface of the partition wall main body portion from the front, An upper wall portion extending along the left-right direction is formed on the upper end side of the front surface of the partition wall main body portion, and an upper wall portion extending along the left-right direction is formed on the lower end side of the front surface of the partition wall main body portion. An extending lower wall portion is formed, and the refrigerant pipe is disposed between the front surface of the partition wall main body portion and the front plate portion, and a first pipe extension portion extending along the left-right direction; A second pipe extension part extending along the left-right direction at a position separated from the first pipe extension part is curved to connect an end of the first pipe extension part and an end of the second pipe extension part. and a curved pipe portion of the refrigerant pipe, wherein the pipe curved portion of the refrigerant pipe contacts the upper wall portion or the lower wall portion of the partition wall main body portion.

Moreover, in the refrigerator of the present invention, the piping curved portion of the refrigerant piping contacts the upper wall portion and the lower wall portion of the partition wall main body portion.

Further, in the refrigerator of the present invention, the piping curved portion contacts the upper wall portion and the lower wall portion of the partition wall main body portion in an elastically deformed state.

Further, in the refrigerator of the present invention, a rib is formed on the front surface of the partition wall main body, and the ribs that come into contact with the refrigerant pipe have approximately the same protruding height.

The refrigerator of the present invention cools a first storage compartment, a second storage compartment, a partition wall that partitions the first storage compartment and the second storage compartment, and the first storage compartment and the second storage compartment. a refrigeration cycle, the refrigeration cycle has a refrigerant pipe through which a refrigerant flows, and the partition wall includes a partition wall main body portion, a front plate portion that closes a front surface of the partition wall main body portion from the front, An upper wall portion extending along the left-right direction is formed on the upper end side of the front surface of the partition wall main body portion, and an upper wall portion extending along the left-right direction is formed on the lower end side of the front surface of the partition wall main body portion. An extending lower wall portion is formed, and the refrigerant pipe is disposed between the front surface of the partition wall main body portion and the front plate portion, and a first pipe extension portion extending along the left-right direction; A second pipe extension part extending along the left-right direction at a position separated from the first pipe extension part is curved to connect an end of the first pipe extension part and an end of the second pipe extension part. and a curved pipe portion of the refrigerant pipe, wherein the pipe curved portion of the refrigerant pipe contacts the upper wall portion or the lower wall portion of the partition wall main body portion. According to the refrigerator of the present invention, the refrigerant pipe can be easily arranged at a predetermined position inside the heat insulating wall. Specifically, the position of the refrigerant piping is fixed by the piping curved portion of the refrigerant piping coming into contact with the upper wall or the lower wall of the partition wall main body. Therefore, the refrigerant pipe can be brought into contact with the front plate part. Therefore, under the operating conditions of the refrigerator, the temperature of the front plate can be increased by the heating refrigerant flowing inside the refrigerant pipe, and it is possible to suppress the formation of dew on the exposed surface of the front plate.

Moreover, in the refrigerator of the present invention, the piping curved portion of the refrigerant piping contacts the upper wall portion and the lower wall portion of the partition wall main body portion. According to the refrigerator of the present invention, the pipe curved portion of the refrigerant pipe contacts the upper wall and the lower wall of the partition wall main body, so that the position of the refrigerant pipe is fixed more accurately.

Further, in the refrigerator of the present invention, the piping curved portion contacts the upper wall portion and the lower wall portion of the partition wall main body portion in an elastically deformed state. According to the refrigerator of the present invention, the positions of the first pipe extension part and the second pipe extension part can be fixed by the reaction force generated by the elastic deformation of the pipe curved part, and the refrigerant pipe is attached to the front plate part. It is possible to achieve even closer contact.

Further, in the refrigerator of the present invention, a rib is formed on the front surface of the partition wall main body, and the ribs that come into contact with the refrigerant pipe have approximately the same protruding height. According to the refrigerator of the present invention, since the ribs having substantially the same protruding height abut against the refrigerant pipes, it is possible to prevent the refrigerant pipes from being inadvertently pushed by the ribs and coming into contact with the front plate portion.

1 is a perspective view showing a refrigerator according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a side sectional view which shows the whole refrigerator based on embodiment of this invention. 1 is a perspective view showing a heat insulating box and a partition wall of a refrigerator according to an embodiment of the present invention. 1 is a perspective view showing a partition wall of a refrigerator according to an embodiment of the present invention. FIG. 1 is an exploded perspective view showing a partition wall of a refrigerator according to an embodiment of the present invention. FIG. 1 is a perspective view showing a partition wall main body of a refrigerator according to an embodiment of the present invention. FIG. 1 is an enlarged perspective view of a partition wall main body of a refrigerator according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing a partition wall main body and refrigerant piping of a refrigerator according to an embodiment of the present invention. FIG. 2 is a sectional view showing the vicinity of the front end of the partition wall of the refrigerator according to the embodiment of the present invention. FIG. 2 is a sectional view showing the vicinity of the front end of a partition wall of a refrigerator according to the background art.

Hereinafter, a refrigerator 10 according to an embodiment of the present invention will be described in detail based on the drawings. In the following description, the same members are basically given the same reference numerals, and repeated description will be omitted. Furthermore, in the following description, each direction of up, down, front, back, left, and right will be used as appropriate, but left and right refers to the left and right when the refrigerator 10 is viewed from the front. Further, in this embodiment, the refrigerator 10 is illustrated as having a freezer compartment and a refrigerating compartment, but the refrigerator 10 may also be one having only a freezing compartment or a refrigerator having only a refrigerating compartment.

FIG. 1 is a perspective view of a refrigerator 10 according to an embodiment of the present invention, viewed from the front left side. The refrigerator 10 has a heat insulating box 11 and a storage chamber formed inside the heat insulating box 11. As a storage room, it has a refrigerator room 12 and a freezer room 13 from the upper side. For example, the refrigerator compartment 12 is the first storage compartment, and the freezing compartment 13 is the second storage compartment.

The front opening of the refrigerator compartment 12 is closed at the upper stage by a heat insulating door 18 and at the lower stage by a heat insulating door 19. The front opening of the freezer compartment 13 has an upper part closed by a heat insulating door 20 and a lower part closed by a heat insulating door 21. The heat insulating door 18 is a rotating door, and the heat insulating door 19, the heat insulating door 20, and the heat insulating door 21 are pull-out doors.

FIG. 2 is a side cross-sectional view showing the refrigerator 10 as a whole. The insulating box body 11 includes an outer box 111 made of a steel plate bent into a predetermined shape, an inner box 112 made of a synthetic resin plate placed inside the outer box 111, and an outer box 111 and an inner box 112. and a heat insulating material 113 filled in between.

Furthermore, inside the heat insulating box 11, the refrigerator compartment 12 and the freezer compartment 13 are partitioned by a partition wall 22. The partition wall 22 has a heat insulating structure similar to the heat insulating box 11. The specific configuration of the partition wall 22 will be described later with reference to FIG. 4 and the like.

A cooling chamber 115 is formed on the back side of the freezing chamber 13, and the freezing chamber 13 and the cooling chamber 115 are partitioned by a partition plate 17. An evaporator 162 serving as a cooler is disposed inside the cooling chamber 115. A machine room 14 is defined at the rear of the lower end of the refrigerator 10, and a compressor 161 is disposed in the machine room 14. The evaporator 162 and the compressor 161 form a refrigerant compression type refrigeration cycle 16. Specifically, the refrigeration cycle 16 includes a compressor 161, a condenser (not shown), an expansion means (not shown), and an evaporator 162.

By operating the refrigeration cycle 16, the air inside the cooling chamber 115 is cooled by the evaporator 162, and the blower 27 blows this cold air to each storage chamber, so that the internal temperature of each storage chamber falls within a predetermined cooling temperature range. shall be. Specifically, the refrigerator compartment 12 is cooled to the refrigeration temperature range, and the freezing compartment 13 is cooled to the freezing temperature range. The components constituting the refrigeration cycle 16 are interconnected by refrigerant pipes made of metal pipes such as copper pipes.

Inside the cooling chamber 115, a blower 27 is arranged above the evaporator 162. The blower 27 is an axial blower or a centrifugal blower, and blows the cold air inside the cooling room 115 cooled by the evaporator 162 toward the refrigerator room 12 and the freezer room 13 .

A defrosting heating unit 117 is arranged inside the cooling chamber 115 and below the evaporator 162. The defrosting heating unit 117 is a heater that generates heat when energized during defrosting operation.

A ventilation path 118 is formed upward from the cooling chamber 115. An opening for blowing cold air into the refrigerator compartment 12 is formed in the air passage 118 . The cold air that has cooled the refrigerator compartment 12 returns to the cooling compartment 115 via a return air path (not shown here), whereby the refrigerator compartment 12 is cooled to a predetermined refrigeration temperature range.

A part of the blown cold air is blown into the freezer compartment 13 through the opening formed in the upper part of the partition plate 17, and the cold air that has cooled the freezer compartment 13 is cooled through the opening formed in the lower part of the partition plate 17. Return to room 115. Thereby, the freezing chamber 13 is cooled to a predetermined freezing temperature range.

If the refrigeration cycle 16 continues to cool the refrigerator compartment 12 and the freezer compartment 13, a lot of frost will form on the evaporator 162, inhibiting heat transfer and air flow in the evaporator 162. Therefore, the evaporator 162 must be defrosted periodically. Drive. In the defrosting operation, the cooling of the refrigerator compartment 12 and the freezing compartment 13 by the refrigeration cycle 16 is stopped by stopping the compressor 161, the air blowing by the blower 27 is stopped, and the inside of the cooling compartment 115 is heated by the defrosting heating unit 117. The evaporator 162 is defrosted by heating the air. After the defrosting operation is completed, the cooling operation of the refrigerator compartment 12 and freezing compartment 13 described above is restarted.

FIG. 3 is a perspective view showing the outer box 111 and partition wall 22 of the refrigerator 10. The outer box 111 is a member made of a steel plate, as described above. A part of the refrigerant pipe 24 is routed along the inner surface of the outer box 111.

The refrigerant pipe 24 is a conduit made of metal such as copper or aluminum, through which the refrigerant used in the refrigeration cycle 16 described above flows. For example, high-temperature refrigerant that has become high temperature by being compressed by the compressor 161 described above flows through the refrigerant pipe 24 . By doing so, when the high-temperature fluid flows inside the refrigerant pipe 24, heat exchange is promoted through the outer box 111, and the high-temperature fluid can be effectively cooled. Furthermore, the surface of the outer box 111 can be heated to suppress dew condensation on the outer surface of the outer box 111.

As will be described later, the refrigerant pipe 24 is also routed near the front end of the partition wall 22. By doing so, the front surface of the partition wall 22 can be heated by the high temperature refrigerant flowing inside the refrigerant pipe 24, and dew condensation on the front surface of the partition wall 22 can be suppressed. Furthermore, it is also possible to prevent dew condensation from forming on a gasket (not shown) that contacts the partition wall 22.

FIG. 4A is a perspective view showing the partition wall 22. FIG. FIG. 4B is an exploded perspective view showing the partition wall 22. FIG.

Referring to FIG. 4A, the partition wall 22 includes a partition wall main body part 221 and a front plate part 23 that closes the front surface of the partition wall main body part 221 from the front. The partition wall main body portion 221 is a member that generally has a flat rectangular parallelepiped shape. The partition wall main body 221 has the above-mentioned heat insulation structure and is made of a heat insulating foam material made of urethane or the like and a synthetic resin plate covering the heat insulating foam material. Further, the front surface of the partition wall 22 is covered with a front plate portion 23 made of a metal plate such as an iron plate. As shown in FIG. 2, the lower end of the heat insulating door 19 and the upper end of the heat insulating door 20 contact the front plate portion 23 via a gasket (not shown).

Referring to FIG. 4B, a refrigerant pipe 24 is disposed between the front surface 222 of the partition wall main body 221 and the front plate 23. As shown in FIG. By doing so, when the refrigerator 10 is operated, the temperature of the front plate portion 23 is increased by the high temperature refrigerant flowing inside the refrigerant pipe 24. This prevents dew condensation on the front surface of the front plate portion 23. The configuration of the refrigerant pipe 24 in the vicinity of the front plate portion 23 will be described later.

FIG. 5A is a perspective view showing the partition wall main body part 221. FIG. 5B is an enlarged perspective view showing the vicinity of the left end of the front surface 222 of the partition wall main body 221. FIG.

Referring to FIG. 5A, an upper wall portion 223 extending in the left-right direction is formed on the upper end side of the front surface 222 of the partition wall main body portion 221. Further, a lower wall portion 224 extending in the left-right direction is formed on the lower end side of the front surface 222 of the partition wall main body portion 221. The upper wall portion 223 and the lower wall portion 224 are wall-shaped portions that protrude forward from the front surface 222. The front plate portion 23 and the lower wall portion 224 are continuously formed from near the left end of the front surface 222 to near the right end.

Referring to FIG. 5B, ribs 225 are formed on the front surface 222. The rib 225 is a wall-shaped portion that partially protrudes forward from the front surface 222 . The protruding height of the rib 225 is made shorter than the protruding heights of the upper wall 223 and the lower wall 224. The ribs 225 are formed in a lattice shape over substantially the entire surface of the front surface 222 .

FIG. 6 is an exploded perspective view showing the partition wall main body 221 and refrigerant piping 24 of the refrigerator 10.

The refrigerant pipe 24 has a first pipe extension part 241 , a second pipe extension part 242 , and a pipe curved part 243 . The first pipe extension portion 241 extends substantially linearly along the left-right direction. The second pipe extension part 242 is arranged on the lower side away from the first pipe extension part 241, and extends substantially linearly along the left-right direction. The pipe bending portion 243 is formed in a curved manner so as to connect the left end of the first pipe extension 241 and the left end of the second pipe extension 242 . With this configuration, the first pipe extension part 241 and the second pipe extension part 242 can be arranged between the front surface 222 and the above-mentioned front plate part 23. Thereby, the temperature of the front plate portion 23 can be effectively raised and dew condensation can be suppressed.

Here, the distance between the lower surface of the upper wall 223 of the partition wall 22 and the upper surface of the lower wall 224 is defined as L10. Further, the maximum width of the pipe curved portion 243 in the vertical direction is assumed to be L11. Further, in the refrigerant pipe 24, the distance between the upper end of the first pipe extension 241 and the lower end of the second pipe extension 242 is L12.

In this case, L11 is made longer than L12. In this way, when the refrigerant pipe 24 is assembled into the front surface 222 of the partition wall 22, the pipe curved part 243 of the refrigerant pipe 24 comes into contact with the upper wall 223 or the lower wall 224 of the partition wall main body 221. . Thereby, the first pipe extension part 241 and the second pipe extension part 242 are arranged at predetermined positions between the front plate part 23 and the front surface 222 described above. That is, the first pipe extension part 241 and the second pipe extension part 242 are arranged approximately at the center of the front surface 222 in the vertical direction. Therefore, the refrigerant pipe 24 can be reliably brought into contact with the front plate portion 23. Therefore, under the operating conditions of the refrigerator 10, the temperature of the front plate part 23 can be raised by the heating refrigerant flowing inside the first pipe extension part 241 and the second pipe extension part 242, and the front plate part 23 can be heated. It is possible to suppress the formation of dew condensation on the exposed surface.

Further, L11 can also be made larger than L10. In this case, the pipe curved portion 243 contacts the upper wall portion 223 and the lower wall portion 224 of the partition wall main body portion 221 in an elastically deformed state, that is, in a slightly compressed state in the vertical direction. By doing so, the positions of the first pipe extension part 241 and the second pipe extension part 242 can be defined more accurately, and the first pipe extension part 241 and the second pipe extension part 242 can be positioned on the front plate. It can be brought into close contact with the portion 23.

As described above, the ribs 225 are formed on the front surface 222 of the partition wall main body 221 . Here, the ribs 225 that come into contact with the refrigerant pipes 24 have approximately the same protruding height. By doing this, the ribs 225 having approximately the same protruding height come into contact with the refrigerant pipe 24, so that the first pipe extension part 241 and the second pipe extension part 242 move forward with uniform force. Pushed. Therefore, the first pipe extension part 241 and the second pipe extension part 242 entirely contact the front plate part 23 described above.

FIG. 7 is a sectional view showing the vicinity of the front end of the partition wall 22 of the refrigerator 10. As described above, the first pipe extension portion 241 and the partition wall 22 are disposed between the front surface 222 of the partition wall 22 and the front plate portion 23. Further, the first pipe extension part 241 and the second pipe extension part 242 are in contact with the rear surface of the front plate part 23.

In this embodiment, as shown in FIG. 6, the pipe curved part 243 of the refrigerant pipe 24 comes into contact with the upper wall part 223 or the lower wall part 224 of the partition wall 22, thereby causing the first pipe extension part 241 and the first pipe extension part 241 to The position of the two-pipe extension portion 242 is defined. Therefore, in the vertical direction, the first pipe extension part 241 and the second pipe extension part 242 are stably arranged near the center of the front plate part 23. Further, the first pipe extension part 241 and the second pipe extension part 242 are pushed from the rear toward the front by the ribs 225 having substantially equal protrusion heights. Therefore, when the refrigerator 10 is in operation, the temperature of the front plate part 23 is effectively raised by the high temperature refrigerant flowing inside the first pipe extension part 241 and the second pipe extension part 242. prevents condensation on the front surface of the

The present invention is not limited to the embodiments described above, and various modifications can be made without departing from the gist of the present invention. Moreover, each of the above-mentioned forms can be combined with each other.

10 Refrigerator 11 Insulating box body 111 Outer box 112 Inner box 113 Insulating material 115 Cooling room 117 Defrosting heating section 118 Air duct 12 Refrigerator room 13 Freezer room 14 Machine room 16 Refrigeration cycle 161 Compressor 162 Evaporator 17 Partition plate 18 Insulation Door 19 Heat insulation door 20 Heat insulation door 21 Heat insulation door 22 Partition wall 221 Partition wall body part 222 Front face 223 Upper wall part 224 Lower wall part 225 Rib 23 Front plate part 24 Refrigerant pipe 241 First pipe extension part 242 Second pipe extension part 243 Pipe bending section 100 Heat insulation wall 101 Heat insulation wall main body 102 Front plate 103 Refrigerant pipe 104 Rib

Claims (4)

a first storage room;
a second storage room;
a partition wall separating the first storage chamber and the second storage chamber;
A refrigeration cycle that cools the first storage chamber and the second storage chamber,
The refrigeration cycle has refrigerant piping through which refrigerant flows,
The partition wall has a partition wall main body portion and a front plate portion that closes the front surface of the partition wall main body portion from the front,
An upper wall portion extending in the left-right direction is formed on the upper end side of the front surface of the partition wall main body portion,
A lower wall portion extending in the left-right direction is formed on the lower end side of the front surface of the partition wall main body portion,
The refrigerant pipe is arranged between the front surface of the partition wall main body part and the front plate part, and is spaced apart from a first pipe extension part extending along the left-right direction and the first pipe extension part. a second pipe extension extending along the left-right direction at the position; and a pipe bending part formed in a curve to connect an end of the first pipe extension and an end of the second pipe extension. have,
The refrigerator, wherein the piping curved portion of the refrigerant piping contacts the upper wall portion or the lower wall portion of the partition wall main body portion. The refrigerator according to claim 1, wherein the piping curved portion of the refrigerant piping contacts the upper wall portion and the lower wall portion of the partition wall main body portion. The refrigerator according to claim 1 or 2, wherein the pipe bending portion contacts the upper wall portion and the lower wall portion of the partition wall main body portion in an elastically deformed state. Ribs are formed on the front surface of the partition wall main body,
3. The refrigerator according to claim 1, wherein the ribs that come into contact with the refrigerant pipe have approximately the same protruding height.

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