Cooling device

Abstract

To provide a cooling device in which corrosion of a heat exchanger is inhibited.SOLUTION: A cooling device 10 includes a cooling unit 12 having fans 122a, 122b, a heat exchanger 124 which cools air sent by the fans 122a, 122b, and a housing 126 which houses the fans 122a, 122b and the heat exchanger 124 therein. Airtightness is substantially maintained in the cooling unit 12.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a cooling device. [Background technology]

[0002] Patent Document 1 describes a refrigerator in which an upper part is divided into a freezer compartment and a lower part into a refrigerator compartment by a partition wall. This refrigerator is characterized in that a cooling plate is airtightly attached to the lower surface of the partition wall to form a space, and a thermal damper that is controlled to open and close depending on the temperature of the refrigerator compartment is provided in the cold air duct that connects the freezer compartment and the space. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 53-141560 Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide a cooling device in which corrosion of a heat exchanger is suppressed. [Means for solving the problem]

[0005] The invention described in claim 1 is a fan , applicable A heat exchanger that cools the air blown by a fan And the Fans and Applicable A housing that houses the heat exchanger Body Yes It is installed at the top of the interior of the storage facility, and the interior is essentially airtight. Cooling unit a cooling unit that is cooled by the cooling unit; Equipped with The cooling unit includes a conductive member that is provided under the cooling unit and is cooled by thermal conduction from the cooling unit, and a plate-shaped cold-dissipating plate that is provided under the conductive member and extends in one direction with its surface facing downward, and dissipates cold air downward where an object to be cooled is stored. It is a cooling device.

[0006]

[0007]

[0008] Claim 2 The invention described in claim 1In the cooling device described above, the cooling unit is detachable.

[0009] Claim 3 The invention described in claim 2 In the cooling device described, At the time of installation of the cooling device The absolute humidity inside the cooling unit is To prevent frost from forming on the heat exchanger, is maintained below a predetermined value.

[0010] Claim 4 The invention described in claim 2 In the described cooling device, the interior of the cooling unit is maintained at a vacuum. Effect of the Invention

[0011] According to the present invention, it is possible to provide a cooling device in which corrosion of a heat exchanger is suppressed. [Brief description of the drawings]

[0012] [Figure 1] 1 is an explanatory diagram showing an internal structure of a cooling device according to an embodiment of the present invention, viewed from the front side; [Diagram 2] 2A and 2B are an explanatory diagram showing a plan view of a cooling unit included in the cooling device and an explanatory diagram showing a cross section taken along the line AA in FIG. 1, respectively. [Diagram 3] 2A and 2B are an explanatory diagram showing a cooling unit included in the cooling device as viewed from the front and a view taken along the arrow B in FIG. 1, respectively. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Next, embodiments of the present invention will be described with reference to the attached drawings to facilitate understanding of the present invention. Note that parts not relevant to the description may be omitted from the drawings.

[0014] As shown in FIG. 1, a cooling device 10 according to an embodiment of the present invention includes a cooling unit 12 and a cold discharging section 14, and can freeze, for example, food (an example of an object to be cooled). The cooling device 10 is, for example, a refrigerator and a freezer, as well as a cold store and a cold store.

[0015] The cooling unit 12 is installed in the upper part of the interior of the refrigerator, and includes fans 122a and 122b (see FIG. 2(B)), a heat exchanger 124, and a housing 126. The location of the cooling unit 12 is not limited to the upper part of the interior of the refrigerator.

[0016] The fans 122a and 122b are each provided above the upper surface of the heat exchanger 124 at a predetermined distance, and can send air toward the heat exchanger 124 by blowing air downward. Moreover, the fans 122a and 122b are arranged at a distance from each other. The number of fans is not limited to two.

[0017] The heat exchanger 124 is a cooling coil and is capable of cooling the air blown by the fans 122a, 122b. A partition plate 125 is provided between the heat exchanger 124 and the fans 122a and 122b when viewed from the front side as shown in Fig. 1. A rectangular hole HL1 is formed in the partition plate 125 (see hatching in Fig. 2(B)), and air sent by the fans 122a and 122b is sent to the heat exchanger 124 only through this hole HL1. The size of the hole HL1 is set so as to be substantially the same as the outer shape of the heat exchanger 124 in a plan view.

[0018] As shown in FIGS. 2(A), 3(A) and 3(B), the housing 126 is, for example, a rectangular parallelepiped shape, and houses the fans 122a and 122b and the heat exchanger 124 therein. The housing 126 is constituted by partition walls that form each surface, and the seams between the partition walls are sealed by packing or the like. As shown in Fig. 2(A), a plurality of fixing holes HLa to HLf for fixing the lower ends of hanging bolts 128 (see Fig. 3(A)) are formed in the upper surface of the housing 126, and the housing 126 is fixed to the ceiling surface via the hanging bolts 128. Furthermore, a plurality of through holes (not shown) are formed in the housing 126, and cables (not shown) for driving the fans 122a and 122b and piping (not shown) through which a refrigerant flows extend through the through holes. Gaps generated between the cables and piping and the through holes are filled with, for example, silicone resin and blocked.

[0019] Therefore, an airtight space is formed inside the housing 126. Here, "airtight" is not used in the strict sense. In other words, "airtight" means "airtightness is substantially maintained", and air flow is permitted between the inside and outside of the housing 126 to an extent that does not significantly affect the effectiveness of the cooling device 10.

[0020] The cold discharging section 14 is cooled by the cooling unit 12 and can dissipate cold air downward. The cold dissipation section 14 is provided at the bottom of the cooling unit 12 and has a plurality of conductive plates 142 and a plurality of cold dissipation plates 144 .

[0021] Each conductive plate 142 is a plate-shaped member extending in one direction, and is provided on the lower surface of the housing 126 so that the short side direction is the up-down direction. The conductive plates 142 are cooled mainly by heat conduction from the cooling unit 12.

[0022] Each of the cold sink plates 144 is a plate-like member extending in one direction, and is provided below the conductive plate 142 with its surface facing downward. The cold sink plates 144 are cooled mainly by radiation from the cooling unit 12 and thermal conduction from the conductive plate 142.

[0023] It is preferable that the cold discharging section 14 be detachable from the cooling unit 12 so as not to impede maintenance.

[0024] Next, the operation of the cooling device 10 will be described. When the cooling device 10 starts operating, the fans 122a and 122b rotate to cool the air that has passed through the heat exchanger 124. However, this cooled air remains inside the housing 126, which is kept airtight. As time passes, the temperature of the cooling unit 12 gradually decreases, and the cold sink plate 144 is cooled primarily by radiation from the cooling unit 12 and heat conduction from the conductive plate 142 . The air inside the refrigerator is cooled by the housing 126 and the cold discharging section 14 of the cooling unit 12. That is, cold air is discharged by the housing 126 and the cold discharging plate 144, and the food ingredients are cooled.

[0025] Thus, according to cooling device 10 of the present embodiment, the inside of cooling unit 12 (inside housing 126) is kept airtight, so that air currents generated by fans 122a, 122b are prevented from occurring inside the refrigerator (outside housing 126). As a result, food brought in through front door 16 and stored inside the refrigerator is prevented from drying out, and the progression of deterioration is suppressed.

[0026] In addition, since the cooling unit 12 is kept airtight, moisture-containing air is prevented from entering from the outside. As a result, frost is prevented from forming on the heat exchanger 124. restraint will be done. In this regard, when the cooling device 10 is installed, the inside of the cooling unit 12 is preferably maintained so that the absolute humidity is lower than a predetermined value, and more preferably is maintained in a vacuum state.

[0027] Furthermore, since heat exchanger 124 is housed inside housing 126 and is not exposed to the interior of the refrigerator, corrosion of heat exchanger 124 is suppressed even if the object to be cooled generates corrosive gas.

[0028] Although the embodiment of the present invention has been described above, the present invention is not limited to the above-mentioned embodiment, and all changes in conditions that do not depart from the gist of the present invention are within the scope of application of the present invention. The cooling device 10 according to the above-described embodiment may be a garbage storage unit that stores food waste in a cooled state. [Explanation of symbols]

[0029] 10 Cooling device 12 Cooling unit 14 Cooling section 16 Front door 122a, 122b Fan 124 Heat exchanger 125 Partition 126 Case 128 Hanging bolt 142 Conductive plate 144 Cooling plate HL1 hole HLa~HLf fixing hole

Claims

1. With fans, a heat exchanger for cooling the air blown by the fan; A cooling device comprising a cooling unit having a housing that houses the fan and the heat exchanger therein.

2. 2. The cooling device according to claim 1, A cooling device, wherein the interior of the cooling unit is substantially kept airtight.

3. 3. The cooling device according to claim 2, The cooling device further includes a cooling unit that releases cold air cooled by the cooling unit.

4. 4. The cooling device according to claim 3, The cooling device, wherein the cooling unit is detachable.

5. 5. The cooling device according to claim 4, A cooling apparatus, wherein the absolute humidity inside the cooling unit is maintained below a predetermined value.

6. 5. The cooling device according to claim 4, A cooling apparatus in which the inside of the cooling unit is maintained at a vacuum.

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