refrigerator

Abstract

To provide a refrigerator that can restrain turbulence in an air flow inside a fan casing and leakage of air by using a blower fan.SOLUTION: A refrigerator comprises a refrigeration chamber 11. A refrigeration cooling chamber 30 in which a refrigeration cooler 54 is installed is formed on the back side of the refrigeration chamber 11. The refrigerator comprises a second separating plate 50 separating the refrigeration chamber 11 and the refrigeration cooling chamber 30, and a blower fan 70 installed on the back side of the second separating plate 50. A first drainage groove 85 for discharging dew condensation water generated in a fan casing 72 of the blower fan 70 to the outside of the fan casing 72 is formed in the second separating plate 50.SELECTED DRAWING: Figure 8

Description

Technical Field

[0001] The present disclosure relates to a refrigerator.

Background Art

[0002] Patent Document 1 discloses a refrigerator including a first storage chamber in a refrigerating temperature zone, a second storage chamber in a freezing temperature zone, a first evaporator for cooling the first storage chamber, a second evaporator for cooling the second storage chamber, a first blower for blowing air cooled by the first evaporator, and a second blower for blowing air cooled by the second evaporator. The first blower is a turbo fan disposed at a position higher than the first evaporator, and the depth dimension of the first evaporator is made equal to the depth of the air duct portion where the turbo fan is disposed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] <0​​​​​​​​​​​​​​In the refrigerator described herein, if condensation occurs inside the fan casing of the blower fan, the condensed water can be discharged to the outside of the fan casing via the first drain channel. Furthermore, since the first drain channel is formed in the partition and no drain channel is formed in the fan casing, turbulence of the airflow inside the fan casing can be suppressed, and air leakage from the fan casing can be suppressed. [Brief explanation of the drawing]

[0007] [Figure 1] Longitudinal cross-sectional view of the refrigerator in Embodiment 1 [Figure 2] Front view of the cooling chamber portion in Embodiment 1 [Figure 3] Exploded perspective view of the duct portion in Embodiment 1 [Figure 4] Rear view of the blower fan portion in Embodiment 1 [Figure 5] Perspective view of the blower fan portion in Embodiment 1, as seen from the rear. [Figure 6] Exploded perspective view of the blower fan portion in Embodiment 1, viewed from the front. [Figure 7] Exploded perspective view of the blower fan portion in Embodiment 1, viewed from the rear. [Figure 8] Enlarged view of the blower fan portion in Embodiment 1 [Figure 9] Enlarged view of the blower fan portion in Embodiment 1 with the fan casing removed. [Modes for carrying out the invention]

[0008] (Knowledge and other information that formed the basis of this disclosure) At the time the inventors conceived of this disclosure, there was a technology that used a turbo fan to blow out air as the first blower. However, in conventional technology, drainage holes are formed on the underside of the fan casing to discharge condensation water generated inside the fan casing to the outside of the fan casing. The inventors discovered that forming drainage holes on the underside of the fan casing in this way causes turbulence in the airflow inside the fan casing because the drainage holes are on the airflow side of the fan casing, and also reduces the efficiency of the fan because air leaks from inside the fan casing through the drainage holes. The subject of this disclosure was developed to solve this problem. Therefore, this disclosure provides a refrigerator that can suppress turbulence in the airflow inside the fan casing and air leakage using a blower fan.

[0009] The embodiments will be described in detail below with reference to the drawings. However, some unnecessarily detailed explanations may be omitted. For example, detailed explanations of already well-known matters or redundant explanations of substantially identical configurations may be omitted. The attached drawings and the following description are provided to enable those skilled in the art to fully understand this disclosure and are not intended to limit the subject matter described in the claims.

[0010] (Embodiment 1) Embodiment 1 will be described below with reference to Figures 1 to 9. [1-1. Structure] [1-1-1. Refrigerator Configuration] Figure 1 is a longitudinal cross-sectional view of the refrigerator in Embodiment 1. Figure 2 is a front view of the cooling chamber portion in Embodiment 1. Figure 3 is an exploded perspective view of the duct portion in Embodiment 1. In this specification, when referring to the front and rear, left and right, and refrigerator 1, Figures 1 and 2 are used as reference. That is, the left and right sides in Figure 1 are used to describe the front and rear of refrigerator 1. Similarly, the left and right sides in Figure 2 are used to describe the left and right sides of refrigerator 1. The front of refrigerator 1 may also be referred to as the front, and the rear of refrigerator 1 may also be referred to as the back.

[0011] As shown in FIG. 1, the refrigerator 1 includes a box-shaped housing 10 with an open front. A compressor 5 is mounted behind the upper surface of the housing 10. Above the housing 10, a refrigerating chamber 11 at about 2°C to 4°C as a storage chamber is formed, and below the housing 10, a freezing chamber 12 at about -18°C is formed. A switching chamber 13 is formed between the refrigerating chamber 11 and the freezing chamber 12. The switching chamber 13 can be used as a low-temperature chamber at about -5°C to about 1°C or as the freezing chamber 12 by operating a switching switch (not shown).

[0012] In the refrigerator 1, a rotary door 14 is provided at the opening of the front surface of the refrigerating chamber 11 so as to be openable and closable. Below the interior of the refrigerating chamber 11, a vegetable chamber 15 as a drawer storage chamber located in the upper stage and a semi-freezing chamber 16 as a drawer storage chamber located in the lower stage are installed. A vegetable chamber drawer case 17 is provided in the vegetable chamber 15, and a semi-freezing chamber drawer case 18 is provided in the semi-freezing chamber 16.

[0013] At the opening of the front surface of the freezing chamber 12, a pull-out type door 19 for the freezing chamber is provided so as to be openable and closable, and a plurality of stages of pull-out cases 20 for the freezing chamber for storing food are provided inside. In addition, at the opening of the front surface of the switching chamber 13, a pull-out type door 21 for the switching chamber is provided so as to be openable and closable, and a pull-out case 22 for the switching chamber that is interlocked with the opening and closing of the pull-out type door 21 for the switching chamber is provided.

[0014] As shown in FIG. 1, a refrigerating cooling chamber 30 is provided on the back side of the refrigerating chamber 11 of the refrigerator 1. The refrigerating chamber 11 and the refrigerating cooling chamber 30 are partitioned by a first partition plate 3l, and a first molded heat insulating material 32 having substantially the same outer shape as the first partition plate 3l is provided on the back side of the first partition plate 3l. A refrigerating duct 33 is formed on the surface of the first molded heat insulating material 32 facing the first partition plate 3l.

[0015] The refrigeration duct 33 comprises a main air passage 34 extending vertically in the approximate center in the left-right direction, and two secondary air passages 35 extending diagonally upward in the left-right direction from both sides of the main air passage 34. The lower end of the main air passage 34 has a refrigeration inlet 36 that communicates with the fan outlet of the blower fan 70, which will be described later, and the upper end of the main air passage 34 has a refrigeration outlet 37 that communicates with the upper part of the refrigerator compartment 11.

[0016] The secondary air passages 35 are formed in a tapered shape as they extend to the left and right, and a side outlet 38 is formed at the tip of each secondary air passage 35, which communicates with the side of the refrigerator compartment 11. In the middle of the main air passage 34, a front air outlet 39 is formed, which is arranged at predetermined intervals in the vertical direction and communicates with the refrigerator compartment 11. A flow straightening block 40 is provided near the upper part of the front air outlet 39. The lower surface of the flow straightening block 40 located below is formed as a flat surface. The lower surface of the flow straightening block 40 located above is an inclined surface that slopes upward to the left and right.

[0017] Below the refrigeration duct 33, between the refrigeration inlet 36 and the lower front outlet 39, a guide rib 41 extending in the vertical direction is provided. The lower end of the guide rib 41 is positioned offset from the side where the rotating fan of the blower fan 70 (described later) is installed, with respect to the approximate left-right center of the refrigeration inlet 36. As a result, the guide rib 41 is positioned with a slight incline in the vertical direction. The cold air that flows in from the refrigeration inlet 36 passes through the main air passage 34 and is blown out into the refrigerator compartment 11 from the upper end of the main air passage 34 through the air outlet. In addition, some of the cold air from the main air passage 34 is blown out into the refrigerator compartment 11 through the side air outlets 38 via each of the secondary air passages 35, and also blown out into the refrigerator compartment 11 from the front air outlet 39.

[0018] A second partition plate 50 and a third partition plate 51 are provided between the vegetable compartment 15 and the semi-freezing compartment 16 and the refrigeration cooling compartment 30. A second molded insulating material 52 is provided between the second partition plate 50 and the third partition plate 51. The partition portion of this disclosure is formed by the second partition plate 50, the third partition plate 51, and the second molded insulating material 52.

[0019] The lower ends of the second partition plate 50, the second molded insulation material 52, and the third partition plate 51 are formed with refrigeration intake ports 53 that communicate with the micro-freezing chamber 16. A refrigerator 54 is installed on the lower rear side of the second partition plate 50. A blower fan 70 is installed above the second partition plate 50.

[0020] A freezing cooling chamber 60 is provided on the rear side of the freezer compartment 12 and the convertible compartment 13 of the refrigerator 1. The freezer compartment 12 and the cooling compartment 60 are separated by a fourth partition plate 61. The fourth partition plate 61 has a freezer intake port 62 that communicates with the freezer compartment 12 and draws cold air from the freezer compartment 12 into the cooling compartment 60. The fourth partition plate 61 has a freezer outlet 63 that communicates with the freezer compartment 12 and a switching compartment outlet 64 that communicates with the switching compartment 13.

[0021] The refrigeration cooling chamber 60 houses a refrigeration cooler 65. The refrigeration cooler 65 is, for example, a fin-tube type cooler. A fin-tube type cooler is, for example, a cooler composed of a cylindrical pipe and flat fins. Above the refrigeration cooler 65, a refrigeration fan 66 is positioned to send the cold air cooled by the refrigeration cooler 65 into the freezer compartment 12.

[0022] For example, an axial fan is used for the refrigeration fan 66. The axial fan is positioned with its outlet facing upwards so as to efficiently blow the cold air cooled by the refrigeration cooler 65 into the freezer compartment 12. The cooling fan 66 may, for example, be a centrifugal fan. Below the refrigeration cooler 65, a heater 67, such as a glass tube heater, is positioned to remove frost that has accumulated on the refrigeration cooler 65. A condensation tray 68 for freezing is positioned below the refrigeration cooler 65.

[0023] [1-1-2. Blower fan section configuration] Next, I will explain the configuration of the blower fan section. Figure 4 is a rear view of the blower fan section in Embodiment 1. Figure 5 is a perspective view of the blower fan section in Embodiment 1, seen from the rear. Figure 6 is an exploded perspective view of the blower fan section in Embodiment 1, seen from the front. Figure 7 is an exploded perspective view of the blower fan section in Embodiment 1, seen from the rear. Figure 8 is an enlarged view of the blower fan section in Embodiment 1. Figure 9 is an enlarged view of the blower fan section in Embodiment 1 with the fan casing removed.

[0024] As shown in Figures 4 to 7, the blower fan 70 comprises a rotating fan 71 and a fan casing 72 that covers the rotating fan 71. The blower fan 70 is configured to draw in air from the direction of the rotation axis of the rotating fan 71 and blow it out in the radial direction of the rotating fan 71. The fan casing 72 is formed in a spiral shape that gradually widens from the rotation center of the blower fan 70. In this embodiment, the fan casing 72 is formed such that the upper part of the fan casing 72 is closest to the rotating fan 71 of the blower fan 70, and then gradually widens to extend to approximately the center of the refrigerator 1 in the left-right direction.

[0025] A fan intake port 73 is formed on the surface of the fan casing 72, which draws in air as the rotating fan 71 rotates. A fan outlet port 74 is formed on the upper part of the fan casing 72, which communicates with the refrigeration inlet 36 of the main air passage 34. The fan outlet 74 of the fan casing 72 is located approximately in the center of the refrigerator 1 in the left-right direction. Therefore, the rotation center of the rotating fan 71 is offset to one side (to the left when viewed from the front) relative to the left-right center of the refrigerator 1.

[0026] The rotating fan 71 of the blower fan 70 is mounted on the rear side of the second partition plate 50. The mounting portion of the second partition plate 50 for the rotating fan 71 is provided with a fan mounting portion 75 having an opening. A casing mounting recess 76 is formed around the fan mounting portion 75, having a shape substantially similar to the outer shape of the fan casing 72.

[0027] The lower part of the fan casing 72 is an inclined surface 77 that slopes diagonally upward. In the middle of the inclined surface 77, a curved section 78 is formed by recessing a part of the inclined surface 77 inward from the fan casing 72. A flange portion 79 extending outward is formed on the outer circumference of the fan casing 72.

[0028] Multiple engaging claws 80 are provided at predetermined positions on the outside of the casing mounting recess 76 of the second partition plate 50, serving as engaging means for engaging with the flange portion 79 of the fan casing 72 and fixing the fan casing 72 to the second partition plate 50. This allows the fan casing 72 to be easily fixed to the second partition plate 50 by engaging the flange portion 79 with the engaging claw 80.

[0029] An outlet opening 90 is formed on the upper surface of the second partition plate 50. The fan outlet 74 of the fan casing 72 is positioned within the outlet opening 90. A micro-freezing chamber inlet 91 is formed on one side of the air outlet 90 of the second partition plate 50. A micro-freezing chamber duct 93 is formed in the second molded insulation material 52, connecting the micro-freezing chamber inlet 91 and a micro-freezing chamber air outlet 92 that opens into the micro-freezing chamber 16. Furthermore, a vegetable compartment inlet 94 is formed on the other side of the second partition plate 50, opposite the air outlet 90. The second molded insulation material 52 has a vegetable compartment duct 96 that connects the vegetable compartment inlet 94 and the vegetable compartment air outlet 95 that opens into the vegetable compartment 15. Between the air outlet opening 90 and the inlet 91 for the micro-freezing chamber and the inlet 94 for the vegetable compartment, a roughly triangular-shaped flow straightening member 97 is provided that protrudes downward. The distribution channel of this disclosure is formed by a fan outlet 74 formed in the fan casing 72, a discharge opening 90 formed in the second partition plate 50, an inlet 94 for the vegetable compartment, and an inlet 91 for the micro-freezing compartment.

[0030] A damper 81 is provided in the air outlet opening 90. The damper 81 is located approximately in the center in the left-right direction and consists of a refrigerator damper 82 that adjusts the flow rate of cold air to the refrigerator inlet 36 of the refrigerator duct 33, a micro-freezing compartment damper 83 that adjusts the flow rate of cold air to the micro-freezing compartment duct 93, and a vegetable compartment damper 84 that adjusts the flow rate of cold air to the vegetable compartment duct 96.

[0031] The second molded insulation material 52 has a first drainage groove 85 that connects the casing mounting recess 76 to the lower part of the fan casing 72. The second molded insulation material 52 also has a second drainage groove 86 that connects the fan mounting portion 75 to the lower part of the fan casing 72. As a result, condensation water accumulated in the casing mounting recess 76 is discharged to the outside of the fan casing 72 via the first drainage channel 85, and condensation water accumulated in the fan mounting section 75 is discharged to the outside of the fan casing 72 via the second drainage channel 86.

[0032] Furthermore, the second molded insulation material 52 has a wiring groove 87 that extends diagonally or downward from the fan mounting portion 75, for routing the wiring of the rotating fan 71 to the outside of the fan casing 72. A locking piece 88 for securing the wiring is provided in the middle of the wiring groove 87. The upper end of the wiring groove 87 is located above the upper end of the second drain groove 86, so that any condensation water accumulated in the wiring groove 87 is discharged to the outside through the second drain groove 86 into the fan casing 72. The wiring 100, which is taken out from below the wiring groove 87, is guided along the outer circumference of the fan casing 72 and upwards towards the fan casing 72. A connector storage section 101 is provided above the second partition plate 50, and the connector (not shown) provided at the end of the wiring 100 is configured to be stored in the connector storage section 101.

[0033] [1-2. Operation, etc.] Next, the operation of the refrigerator 1 in Embodiment 1 will be described. In this embodiment, the compressor 5 is driven to send refrigerant to the refrigerant circuit, and the refrigerant is selectively circulated to the refrigerator cooler 54 or the freezing cooler 65, thereby cooling the refrigerator cooler 54 or the freezing cooler 65. Then, by driving the blower fan 70, the air inside the refrigerator compartment 11 is drawn into the refrigerator cooling compartment 30 from the cooling compartment intake. The air drawn into the refrigerator cooling compartment 30 flows from bottom to top through the refrigerator cooler 54, is cooled by heat exchange with the refrigerator cooler 54 through which the refrigerant flows, and is then drawn into the fan casing 72 from the fan intake 73.

[0034] The air drawn into the fan casing 72 is blown out circumferentially by the rotating fan 71, guided along the underside of the fan casing 72, and blown out from the fan outlet 74 towards the main air passage 34. The air blown out into the main air passage 34 is then blown into the refrigerator compartment 11 via the main air passage 34 and the secondary air passage 35, through the refrigerator outlet 37, the side outlet 38, and the front outlet, respectively, thereby cooling the refrigerator compartment 11.

[0035] Meanwhile, some of the air in the fan casing 72 is blown out from the opening for the freezing chamber through the duct 93 for the freezing chamber to the outlet 92 for the freezing chamber and into the freezing chamber 16. Similarly, some of the air in the fan casing 72 is blown out from the vegetable compartment opening through the vegetable compartment duct 96 to the vegetable compartment outlet 95 and into the vegetable compartment 15. The airflow rate supplied to the main air passage 34, the opening for the freezing compartment, and the opening for the vegetable compartment is adjusted by the amount of opening and closing of the refrigerator damper 82, the damper for the freezing compartment 83, and the damper for the vegetable compartment 84.

[0036] Furthermore, by driving the refrigeration fan 66, air from inside the freezer compartment 12 is drawn into the refrigeration cooling chamber 60 through the intake port of the freezer compartment 12. The air drawn into the refrigeration cooling chamber 60 flows from bottom to top through the refrigeration cooler 65, and is cooled by heat exchange with the refrigeration cooler 65 through which the refrigerant flows. The air cooled by heat exchange with the refrigeration cooler 65 is blown into the freezer compartment 12 via the refrigeration outlet 63 and into the switching compartment 13 via the switching compartment outlet 64, thereby cooling both the freezer compartment 12 and the switching compartment 13.

[0037] If condensation occurs inside the fan casing 72 of the blower fan 70 and in the casing mounting recess 76, the condensed water will drip down to the bottom of the fan casing 72. In this embodiment, since a first drainage channel 85 is provided, condensed water flows to the outside of the fan casing 72 through the first drainage channel 85 and is stored at the bottom of the refrigeration cooling chamber 30. Furthermore, if condensation occurs at the fan mounting portion 75 of the fan casing 72, the condensed water flows from the fan mounting portion 75 to the outside of the fan casing 72 via the second drainage channel 86 and is stored at the bottom of the refrigeration cooling chamber 30. The condensed water stored in the refrigerated cooling chamber 30 is stored at the bottom of the refrigerator 1 via a condensed water pipe that extends to the bottom of the refrigerator 1. Since the fan mounting portion 75 is formed in a stepped shape relative to the casing mounting portion, if condensation occurs in the casing mounting recess 76 and the fan mounting portion 75, the first drainage groove 85 and the second drainage groove 86 can smoothly discharge the condensed water from the fan casing 72, respectively.

[0038] Furthermore, in this embodiment, a wiring groove 87 is provided. Since the upper end of the wiring groove 87 is located above the upper end of the second drain groove 86, condensation water accumulated in the fan mounting section 75 or attached to the wiring 100 will flow into the second drain groove 86 without flowing into the wiring groove 87. As a result, the second drain groove 86 can discharge the condensation water accumulated in the fan mounting section 75 and the wiring 100 to the outside of the fan casing 72.

[0039] [1-3. Effects, etc.] As described above, in this embodiment, a refrigerator is provided with a refrigerator compartment 11 (storage compartment), a refrigerated cooling compartment 30 (cooling compartment) where a refrigerated cooler 54 (cooler) is installed on the rear side of the refrigerator compartment 11, a second partition plate 50 (partition) separating the refrigerator compartment 11 and the refrigerated cooling compartment 30, and a blower fan 70 positioned on the rear side of the second partition plate 50. The second partition plate 50 has a first drainage groove 85 formed therein for discharging condensation water generated inside the fan casing 72 of the blower fan 70 to the outside of the fan casing 70. As a result, if condensation occurs inside the fan casing 72 of the blower fan 70, the condensed water can be discharged to the outside of the fan casing 72 via the first drainage channel 85. Furthermore, since the first drainage channel 85 is formed in the second partition plate 50 and no drainage channel is formed in the fan casing 72, turbulence of the airflow inside the fan casing 72 can be suppressed, and air leakage from the fan casing 72 can be suppressed.

[0040] In this embodiment, the second partition plate 50 (partition) is provided with a fan mounting portion 75 for the blower fan 70, and the second partition plate 50 has a second drainage groove 86 formed therein to discharge condensation water generated at the fan mounting portion 75 to the outside of the fan casing 72. As a result, if condensation occurs inside the fan casing 72 of the blower fan 70, the condensed water can be discharged to the outside of the fan casing 72 via the second drainage channel 86. Furthermore, since the second drainage channel 86 is formed in the second partition plate 50 and no drainage channel is formed in the fan casing 72, turbulence of the airflow inside the fan casing 72 can be suppressed, and air leakage from the fan casing 72 can be suppressed.

[0041] Furthermore, in this embodiment, a wiring groove 87 for pulling out the wiring 100 of the blower fan 70 is formed in the second partition plate 50 (partition portion), and the upper end of the wiring groove 87 is positioned higher than the upper ends of the first drain groove 85 and the second drain groove 86. As a result, even if condensation water generated at the fan mounting section 75 flows into the wiring groove 87, the first drain groove 85 and the second drain groove 86, located below the wiring groove 87, can discharge the condensation water to the outside of the fan casing 72. Furthermore, since the wiring groove 87 is formed in the second partition plate 50 and no drain groove is formed in the fan casing 72, turbulence of the airflow inside the fan casing 72 can be suppressed, and air leakage from the fan casing 72 can be suppressed.

[0042] In this embodiment, the second drainage channel 86 is located between the first drainage channel 85 and the wiring channel 87. As a result, even if condensation water generated at the fan mounting section 75 flows into the wiring groove 87, the second drain groove 86 can discharge the condensation water to the outside of the fan casing 72.

[0043] In this embodiment, the wiring 100 housed in the wiring groove 87 is routed upward below the wiring groove 87 and guided upward along the outer circumference of the fan casing 72. As a result, even if condensation water flows onto the wiring 100, the condensation water will fall below the wiring groove 87 and will not flow onto the connector portion of the wiring 100 which is guided upwards.

[0044] In this embodiment, a flange portion 79 extending outward is formed on the outer circumference of the fan casing 72, and the second partition plate 50 (partition portion) is provided with a plurality of engaging claws 80 (engaging means) that engage with the flange portion 79 and fix the fan casing 72 to the second partition plate 50. As a result, the fan casing 72 can be fixed to the second partition plate 50 without using screws or the like by securing the fan casing 72 with the engaging claws 80.

[0045] (Other embodiments) Embodiment 1 has been described as an example of the technology disclosed in this application. However, the technology in this disclosure is not limited to this and can be applied to embodiments that have been modified, replaced, added, or omitted.

[0046] (Note) Based on the above description of embodiments, the following technologies are disclosed.

[0047] (Technical 1) A refrigerator comprising a storage chamber, a cooling chamber formed on the rear side of the storage chamber where a cooler is installed, a partition separating the storage chamber and the cooling chamber, and a blower fan positioned on the rear side of the partition, wherein the partition has a first drainage channel formed therein for discharging condensation water generated inside the fan casing of the blower fan to the outside of the fan casing. With this configuration, if condensation occurs inside the fan casing of the blower fan, the condensed water can be discharged to the outside of the fan casing through the first drainage channel. Furthermore, since the first drainage channel is formed in the partition and no drainage channel is formed in the fan casing, turbulence in the airflow inside the fan casing can be suppressed, and air leakage from the fan casing can be suppressed.

[0048] (Technical 2) The refrigerator according to Technical 1, wherein a fan mounting portion for the blower fan is provided in the partition portion, and a second drainage channel is formed in the partition portion for discharging condensation water generated in the fan mounting portion to the outside of the fan casing. With this configuration, if condensation occurs inside the fan casing of the blower fan, the condensed water can be discharged to the outside of the fan casing via the second drainage channel. Furthermore, since the second drainage channel is formed in the partition and no drainage channel is formed in the fan casing, turbulence in the airflow inside the fan casing can be suppressed, and air leakage from the fan casing can be suppressed.

[0049] (Technical 3) The refrigerator according to Technical 2, wherein a wiring groove for drawing out the wiring of the blower fan is formed in the partition portion, and the upper end of the wiring groove is positioned higher than the upper ends of the first drain groove and the second drain groove. With this configuration, even if condensation water generated at the fan mounting section flows into the wiring groove, the first and second drainage grooves located below the wiring groove can discharge the condensation water to the outside of the fan casing. Furthermore, since the wiring groove is formed in the partition section and no drainage groove is formed in the fan casing, turbulence in the airflow inside the fan casing can be suppressed, and air leakage from the fan casing can be suppressed.

[0050] (Technical 4) The refrigerator according to Technical 3, wherein the second drainage channel is located between the first drainage channel and the wiring channel. With this configuration, even if condensation water generated at the fan mounting area flows into the wiring groove, the second drainage groove can discharge the condensation water to the outside of the fan casing.

[0051] (Technical 5) The refrigerator according to Technical 3, wherein the wiring housed in the wiring groove is routed upward below the wiring groove and guided upward along the outer circumference of the fan casing. With this configuration, even if condensation flows onto the wiring, the condensation will fall below the wiring groove and will not flow onto the connector portion of the wiring that is guided upwards.

[0052] (Technical 6) The refrigerator according to Technical 1, wherein a flange portion extending outward is formed on the outer circumference of the fan casing, and the partition portion is provided with a plurality of engaging means that engage with the flange portion and fix the fan casing to the partition portion. This configuration allows the fan casing to be fixed to the partition plate without using screws or the like, by securing it with the engaging means. [Industrial applicability]

[0053] As described above, the refrigerator according to this disclosure is suitably usable in refrigerators that can suppress turbulence in the airflow inside the fan casing and air leakage using a blower fan. [Explanation of Symbols]

[0054] 1. Refrigerator 5. Compressor 10 cabinets 11 Refrigerator 12 Freezer 13 Switching Room 14 doors 15. Vegetable compartment 16 Microfreezing chamber 17. Drawer case for vegetable compartment 18. Drawer case for micro-freezing chamber 19. Freezer compartment with pull-out door 20 Freezer Drawer Cases 21. Pull-out door for switching room 22 Drawer case for switching chamber 30 Refrigerated Cooling Chamber 31. First partition plate 32. First molded insulation material 33 Refrigeration duct 34 Main air path 35 Secondary air passage 35 Each sub-airway 36 Refrigerated inlet 37 Refrigerator outlet 38 Side air outlet 39 Front air outlet 40 Rectifier Block 41 Guide Ribs 50 Second partition plate 51 Third partition 52. Second molded insulation material 53 Refrigerator intake 54 Refrigerator Cooler 60 Refrigeration cooling room 61. Fourth partition plate 62 Freezing intake port 63 Refrigeration outlet 64 Air outlet for switching room 65 Refrigeration cooler 66 Refrigeration fan 67 Heater 70 Blower Fan 71 Rotating Fan 72 Fan Casing 73 Fan intake 74 Fan outlet 75 Fan mounting section 76 Casing mounting recess 77 Slope 78 Inflection 79 Flange section 80 Engaging claws 81 Damper 82 Refrigerated damper 83 Damper for a slightly freezing chamber 84 Damper for vegetable compartment 85. Drainage channel 1 86. Second drainage ditch 87 Wiring groove 88 Locking piece 90 Outlet opening 91 Inlet for microfreezing chamber 92 Air outlet for micro-freezing chamber 93 Duct for a partially frozen chamber 94 Inlet for vegetable compartment 95 Vegetable compartment outlet 96. Duct for vegetable compartment 97 Rectifying member 100 Wiring 101 Connector storage section

Claims

1. Equipped with a storage room, A cooling chamber is formed on the rear side of the aforementioned storage chamber, where a cooler is installed. The device comprises a partition separating the storage chamber and the cooling chamber, and a blower fan positioned on the rear side of the partition. The partition section is provided with a first drainage channel for discharging condensation water generated inside the fan casing of the blower fan to the outside of the fan casing. refrigerator.

2. The partition section is provided with a fan mounting section for the blower fan. The partition section is provided with a second drainage channel for discharging condensation water generated at the fan mounting section to the outside of the fan casing. The refrigerator according to claim 1.

3. A wiring groove for pulling out the wiring of the blower fan is formed in the partition portion. The upper end of the wiring groove is positioned higher than the upper ends of the first drain groove and the second drain groove. The refrigerator according to claim 2.

4. The second drainage channel is located between the first drainage channel and the wiring channel. The refrigerator according to claim 3.

5. The wiring housed in the wiring groove is routed upward below the wiring groove and guided upward along the outer circumference of the fan casing. The refrigerator according to claim 3.

6. A flange portion extending outward is formed on the outer circumference of the fan casing. The partition portion is provided with a plurality of engaging means that engage with the flange portion and fix the fan casing to the partition portion. The refrigerator according to claim 1.

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