JP4367865B2 - Humidifier for refrigerator and cold storage - Google Patents

Description

  The present invention relates to a refrigerator and a humidifier for a refrigerator for storing fresh foods such as vegetables, fruits and seafood, and florets with high freshness for a long period of time.

  For example, in agricultural production areas, there is a strong demand for means for preserving vegetables, fruits, flower buds and the like with good freshness for a long time because of the necessity of adjusting the shipping time. For example, in order to maintain good freshness over a long period of time, as shown in Table 1, fruits have as much as possible a relative humidity of 80% to 95% in a temperature range of −1.5 ° C. to + 15 ° C. Must be stored at high humidity.

A high-humidity refrigerator that meets this purpose has been proposed (see Patent Document 1). In this prior art, a refrigerant pipe from a cooler is stretched around a water tank provided on the ceiling of the refrigerator, a cooling unit with a fan is provided in the refrigerator and an evaporating dish in front of the cooling unit, and a water supply pipe from the water tank to the evaporating dish is provided. Is provided. The evaporating dish is provided with a sponge so as to be impregnated with cold water from the water tank, and the inside of the refrigerator is humidified by blowing air from the cooling unit.
JP 2005-037006 A

Also, in the storage, ice is dropped on a heat exchanger consisting of a perforated inclined plate whose slopes are alternately reversed from the top to the bottom, and in the process, the ice is melted by blowing from the bottom of the heat exchanger. A high-humidity storage has also been proposed in which the interior of the storage is humidified (see Patent Document 2).
JP 05-332654 A

  In the above-mentioned Patent Document 1, it is not clarified how much humidity the high-humidity refrigerator disclosed in the same document can reach in what temperature range, and it is difficult to quantitatively grasp the action and effect of the invention. On the other hand, the invention disclosed in Patent Document 2 has a problem of requiring a large-scale ice making machine as shown in FIG.

  The present invention provides a high-humidity refrigerator and cooler that can maintain a high humidity of 95% to 100% relative humidity in a temperature range of −2 ° C. to + 10 ° C., for example, with a simple configuration. The purpose is to do.

The invention according to claim 1 for solving the above-mentioned problem is a humidifier used in a refrigerator or a cold storage, having a water tank or an ice tank in the lower part, and perpendicular to the flow direction of air (inside the atmosphere). An air flow path cross-sectional area and an air flow path cross-sectional area reduction section facing the water surface or ice surface in the water tank or ice tank in the air flow path. The enlarged portion is provided in a plurality of stages alternately in the air flow direction, and the air (inside atmosphere) flow is closed on the water surface in the air (inside atmosphere) flow path closed in the plane perpendicular to the air (inside atmosphere) flow direction. It is configured to alternately repeat descending or ascending toward the ice surface, and a blower is provided on the air flow path entrance side or the exit side, and the air (atmosphere) in the refrigerator or cool box is sent to the air (inside atmosphere) by the blower ) The feature is that it is circulated in the flow path. High humidity refrigerator that is a cold storage for a humidifier. In this configuration, the air channel cross-sectional area reducing portion facing the water surface or ice surface in the water tank or ice bath and the adjacent air channel cross-sectional area expanding portion are provided at the beginning of the air channel in the air channel. It doesn't matter. The point is that the air flow path cross-sectional area reduction part and the air flow path cross-sectional area enlargement part are provided adjacent to each other.

The invention according to claim 2 is a partition plate in which the air channel cross-sectional area reduction part is suspended and fixed from the upper part of the air channel, and the lower end part has a gap between the water surface or the ice surface in the water tank or ice tank. in is intended to be configured, but an air flow path cross-sectional area expanding portion is an upper end between the erected from the air passage lower the air flow path ceiling is constituted by a partition plate with a gap It is a humidifier for refrigerators and cold storage according to claim 1.

According to a third aspect of the present invention, the air channel cross-sectional area reducing portion and the air channel cross-sectional area expanding portion are constituted by curved or sawtooth members in a vertical plane parallel to the air flow direction. It is a humidifier for refrigerators and cold storage according to claim 1.

The invention described in claim 4 is a humidifier used in a refrigerator or a cold storage, having a water tank or ice tank in the lower part, and closed in a plane perpendicular to the flow direction of air (inside atmosphere) (Atmosphere) A channel is formed, and an air channel cross-sectional area reducing portion and an air channel cross-sectional area enlarging portion facing the water surface or ice surface in the water tank or ice bath are formed in the air flow direction in the air channel. The air (inside chamber atmosphere) flow descends toward the water surface or ice surface in an air (inside chamber atmosphere) flow path that is alternately provided in a plurality of stages and is closed in a plane perpendicular to the air (inside chamber atmosphere) flow direction. It is configured to alternately repeat the rise, and further provided with an opening that opens upward or downward in the center of the air flow direction in the air flow path and takes in or discharges air (inside atmosphere) into the air flow path, A blower is provided at the opening or the air flow path outlet, Refrigerator air refrigerator or the cool box by discharging or sucking air by the blower (the storage room atmosphere) was set to circulate the air flow path, a cold storage humidifier.

  The invention described in claim 5 is the humidifier for a refrigerator and cooler according to claim 4, wherein the air (inside atmosphere) flow path is arranged in a plane cross shape.

The invention described in claim 6 is a humidifier used in a refrigerator or a cold storage, wherein a flat circular or polygonal humidifying container having a water tank or an ice tank at the lower part is formed, and an outer peripheral surface of the humidifying container is 1 The above-described air (inside atmosphere) discharge port or intake port is provided, an opening is provided in the center of the flat surface of the humidifying container, and an air supply or intake blower is provided in the opening to provide a humidifying container radius. Air (inside-chamber atmosphere) flow path is formed, and the air channel cross-sectional area reduced portion and the air channel cross-sectional area enlarged portion facing the water surface or ice surface in the water tank or ice tank are formed in the air flow path. The air (inside atmosphere) flow is directed toward the water surface or ice surface in the air (inside atmosphere) flow path closed in a plane perpendicular to the flow direction by providing a plurality of stages alternately in the flow direction. the lowering or rising configured as alternating Te, further, the Bro It is a humidifier for a refrigerator and a cooler that discharges or sucks air (ambient atmosphere) and circulates the air (the atmosphere in the refrigerator) in the refrigerator or the cold storage through the air (internal atmosphere) flow path. .

According to a seventh aspect of the present invention, the air channel cross-sectional area reduced portion and the air channel cross-sectional area enlarged portion constituting member are covered with a cloth-like material rich in moisture storage. A refrigerator or a humidifier for cold storage as described in the above.

  According to the present invention, in the refrigerator or the cold storage, for example, the relative humidity in the refrigerator can be 95% to 100% only with the air (atmosphere) flow from the blower on the humidifier containing side, and dew condensation, No frost is produced in the cabinet. Thus, the humidifier (humidification unit) can be made compact with a simple structure, and contributes to long-term preservation of fresh food at a low cost.

(First embodiment)
The humidifier for the refrigerator and cold storage of the present invention is a square tube closed in a cross section perpendicular to the flow direction of air (internal atmosphere) in this embodiment in order to form a stream tube in hydrodynamics. It is formed as a body. Also, in the air flow direction of the humidifier, facing the water surface or ice surface in the water tank or ice tank, the partition plate is suspended and fixed from the top of the humidifier (square tube), and the lower end of the partition plate and the water surface or ice surface On the other hand, a partition plate is erected from the lower part of the humidifier (rectangular tube) behind the partition plate, and between the upper end of the partition plate and the top plate of the humidifier (square tube). A humidifier is formed by providing a plurality of stages in the air flow direction with an interval.

  A blower is arranged on the air flow path entrance side or the exit side of the humidifier so that air (inside atmosphere) is circulated in the humidifier. As a result, the air (atmosphere atmosphere) flow in the humidifier descends toward the water surface or ice surface, and then rises after passing between the lower end of the partition plate and the water surface or ice surface, and in the air flow direction Repeat several times to humidify the refrigerator or refrigerator compartment. By repeating this, the humidification capacity in the cabinet is improved.

  Thus, when air (inside chamber atmosphere) is circulated through the air flow path of the humidifier, water vapor on the water surface or ice surface is stripped off to promote evaporation, and the inside of the refrigerator or cold storage chamber is humidified. The Control of the water surface or ice surface in the water tank or ice tank can be facilitated by water supply control using a float or optical sensor known per se. Moreover, the water in the water tank in a humidifier is made into the water or ice of the temperature with the air (chamber interior atmosphere) sent by the blower.

  Thus, the inside of the refrigerator or cold storage has a relative humidity of 95% to 100%. On the other hand, a refrigerator is attached to the refrigerator and the cold storage, heat is exchanged between the refrigerant pipe and the air in the refrigerator, and the temperature is controlled to a predetermined temperature (for example, a set temperature between −2 ° C. and + 15 ° C.). . Thus, when the difference between the saturated water vapor pressure at that temperature in the internal atmosphere and the actual water vapor pressure in the internal atmosphere is positive, evaporation by the humidifier occurs. Therefore, the relative humidity never exceeds 100%, and the refrigerator and cold storage are always kept dry and the relative humidity is 95% to 100% without the occurrence of condensation or frost. It can be stored for a long time (2 weeks to several months) with good freshness.

(Second embodiment)
In the direction of the air flow of the humidifier, a narrow part (cross-sectional area reduced part) of the air channel cross section is formed facing the water surface or ice surface in the water tank or ice tank, and an air channel cross-sectional area enlarged part is formed in the subsequent stage. And at least one stage in the air flow direction.

  A blower is provided on the upstream side (entry side) of the air flow path (square tube), and a humidified air discharge port is provided on the outlet side (downstream end). Thus, the air in the refrigerator in the refrigerator is sent into the air flow path by the blower. As a result, in the air flow path cross-section reduced portion facing the water surface or ice surface, the velocity head of air increases to form a low pressure portion, and water vapor on the water surface or ice surface is peeled off and moved to the subsequent stage. The subsequent stage of the air flow path cross-sectional reduced portion facing the water surface or ice surface is an air flow cross-sectional area enlarged portion, and the pressure head increases and the speed head decreases. In this air channel cross-sectional area enlarged portion, the air flow and the water vapor are mixed, and the air channel cross-sectional area is reduced to the next stage.

  Thus, by repeatedly increasing the velocity head of the air (decreasing the pressure head) and increasing the pressure head (decreasing the velocity head), the inside of the refrigerator and the cold storage is rapidly humidified to a relative humidity of 95% to 100%. . Thus, as in the first embodiment, when the difference between the saturated water vapor pressure at the temperature of the internal atmosphere and the water vapor pressure of the actual internal atmosphere is positive, evaporation by the humidifier occurs. . Therefore, the relative humidity never exceeds 100%, and the refrigerator and cold storage are always kept dry and the relative humidity is 95% to 100% without the occurrence of condensation or frost. It can be stored for a long time (2 weeks to several months) with good freshness.

(Third embodiment)
In the central part of the air (inside chamber atmosphere) flow path of the humidifier, an opening is provided in the upper or lower part, a blower is provided in this opening, air is supplied or sucked by this blower, and air ( Circulate the atmosphere). Alternatively, a blower is disposed at the end of the air (inside atmosphere) flow path of the humidifier (air (inside atmosphere) outlet or entrance when air is supplied or sucked from the opening), Without providing a blower, the opening is used as an air (inside atmosphere) outlet or inlet by supplying or sucking air with a blower at the end of the air (inside atmosphere) flow path of the humidifier. Allow air (atmosphere) to flow through the humidifier. This third embodiment can be carried out in conformity with the first to fourth embodiments.

  In this embodiment, the air (inner chamber atmosphere) flow path of the humidifier extends in one direction, and can be arranged in a cross shape in a plan view so that it can accommodate a wide cold storage. it can.

(Fourth embodiment)
In the central part of the air (inside chamber atmosphere) flow path of the humidifier, an opening is provided in the upper or lower part, a blower is provided in this opening, air is supplied or sucked by this blower, and air ( Circulate the atmosphere). In this embodiment, the container of the humidifier is formed in a flat circular shape or a polygonal shape, and at least one air descending flow forming portion and an air upward flow forming portion are also arranged in a flat circular shape or a polygonal shape. Thus, air supply or intake by the blower forms an air flow (planar atmosphere) in the plane radial direction within the container. For example, when the blower supplies air, the humidified air (inside atmosphere) is discharged from the humidifier in the plane radial direction. When the blower intakes air, the reverse is true, and air (inside atmosphere) is emitted from the opening. This fourth embodiment can be carried out in conformity with the first to third embodiments.

  As described above, in the present invention, only the circulation of the air (atmosphere) in the refrigerator or cold storage by the blower into the humidifier eliminates the need for complicated equipment and control, and also prevents condensation and frost. Without generating, the inside of the refrigerator can be set to a relative humidity of 95% to 100%.

As a humidifier, an air flow path (square tube) (made of a steel plate) having a width: 600 mm, a length (dimension in the air flow direction): 600 mm, and a height: 200 mm is manufactured, and as shown in FIG. In the air flow direction of the humidifier, face the water surface or ice surface in the water tank or ice tank, hang the partition plate from the top of the humidifier (square tube), fix it, and between the lower end of the partition plate and the water surface or ice surface On the other hand, a partition plate is erected from the lower part of the humidifier (square tube) behind the partition plate, and a gap is provided between the upper end of the partition plate and the top plate of the humidifier (square tube). A humidifier was configured by arranging a plurality of these in the air flow direction. A blower having a capacity of 100 V, 60 Hz, 1.7 A (rated), an air flow rate of 5.5 Nm ³ / min, and a static pressure of 0.85 kPa was attached to the air flow direction entering side. A humidified air outlet is provided on the outlet side in the air flow direction.

  This humidifier is installed in a cold storage box having a height of 3360 mm × 2140 mm × 2170 mm (internal dimensions), and the water in the water tank is drained by the cool air in the cold storage box at a temperature range of 2.4 ° C. to 3.8 ° C. After cooling until it became equal to the ambient temperature in the cool box, the blower was operated to humidify the cool box. The relative humidity change at that time is shown in FIG.

  As is clear from FIG. 6, the humidifying ability according to Example 1 is superior to the case where the partition plate is not provided (marked with ■).

In this embodiment, as shown in FIG. 7, the partition plate 18 erected at the bottom of the humidifier 11 is a partition plate 181 covered with a cloth-like material rich in moisture storage, for example, non-woven fabric, thereby evaporating moisture. The surface area can also be increased. In FIG. 7, 19 is a water supply port. Moreover, as shown in FIG.8 (b), the air flow path 17 which makes a lower-end part of a partition plate 188 serrated, and makes this part a cross-sectional reduction part can also be comprised.

FIG. 1 shows a longitudinal section parallel to the air flow direction of a humidifier in a high-humidity refrigerator and cool box according to this embodiment. In FIG. 1, 11 is a humidifier, 12 is a blower, 13 is an air channel cross-sectional area reduction unit, 14 is a water tank or ice tank, 15 is a water surface or ice surface, 16 is a humidified air discharge port, and 17 is an air channel disconnection. An area enlargement part and 18 are partition plates.

As the humidifier 11 , an air flow path (square tube) (made of steel plate) having a width of 600 mm, a length (dimension in the air flow direction): 600 mm, and a height of 200 mm is manufactured, and the inside thereof is shown in FIG. In addition, a partition plate 18 extending upward from the bottom surface of the rectangular tube body was erected and a partition plate 18 facing the water surface or the ice surface 15 from the top plate was fixed. In this embodiment, the distance between the lower end of the partition plate 18 suspended from the top plate and the water surface or ice surface, that is, the size of the air flow path cross-sectional area reducing portion 13 is set to the height of the water surface or ice surface in the range of 10 mm to 50 mm. It was made to adjust by changing.

  An air flow path cross-sectional area reduction portion 13 is formed by a partition plate 18 suspended and fixed from the top plate, and the air flow path cross-sectional area is enlarged by the partition plate 18 and the partition plate 18 extending upward from the bottom surface of the rear rectangular tube body. Part 17 is formed. In this embodiment, the air flow path cross-sectional area reduction section 13 and the air flow path cross-section area expansion section 17 are provided in five stages in the air flow direction.

A blower 12 having a capacity of 100 V, 60 Hz, 1.7 A (rated), an air flow rate of 5.5 Nm ³ / min, and a static pressure of 0.85 kPa was attached to the air flow direction entering side. A humidified air outlet 16 is provided on the outlet side in the air flow direction.

The humidifier 11 is installed in a cold storage chamber having a height of 3360 mm × 2140 mm × 2170 mm (internal dimensions), and the dimensions of the air flow path cross-sectional area reduction unit 13 in the internal temperature range of 2.4 ° C. to 3.8 ° C. After cooling the water in the water tank 14 with the cool air in the cool box to the same temperature as the ambient temperature in the cool box, the blower 12 was activated to humidify the cool box. Also in this embodiment, the humidification capacity is increased by reducing (narrowing) the size (interval on the water surface 5) of the air flow path cross-sectional area reducing portion 3 to 20 mm, for example.

In this embodiment, it is of course possible to use a sinusoidal partition plate 28 as shown in FIG. 2 to form the air channel cross-sectional area reduced portion and the air channel cross-sectional area enlarged portion. In FIG. 2, 21 is a humidifier, 22 is a blower, 23 is an air channel cross-sectional area reduction unit, 27 is an air channel cross-sectional area enlargement unit, 24 is a water tank or ice tank, 25 is a water surface or ice surface, and 26 is humidification. Air outlet. Furthermore, a saw-toothed partition plate 38 can be used as shown in FIG. 3 to form the air channel cross-sectional area reduced portion and the air channel cross-sectional area enlarged portion. In FIG. 3, 31 is a humidifier, 32 is a blower, 33 is an air channel cross-sectional area reduction unit, 37 is an air channel cross-sectional area enlargement unit, 34 is a water tank or ice tank, 35 is a water surface or ice surface, and 36 is humidification. Air outlet.

  4 and 5 show a humidifier for a high-humidity refrigerator and cold storage according to another embodiment of the present invention. FIG. 4 is a plan view, and FIG. 5 is a longitudinal cross-sectional view (AA arrow) parallel to the air flow path. In this embodiment, splashes of water are generated at the front stage of humidification, and the air flow including the splashes is bent downward (in the direction of the arrow X) as viewed in FIG. 4, and at the rear stage, as shown in FIG. As in the second embodiment, the air flow path cross-sectional area reduced portion and the air flow path cross-sectional area enlarged portion are alternately provided in a plurality of stages in the air flow direction, and in this embodiment, 5 stages are provided.

4 and 5, 41 is a humidifier, 42 is a blower, 43 is an air flow path cross-sectional area reduction part, 44 is a water tank, 45 is a water surface, 46 is a humidified air discharge port, and 47 is an air flow path cross-sectional area enlargement part. 48 is a partition plate, 49 is a sawtooth plate, 50 is a water flow guide plate, and 51 is a hanging plate.

  As the water droplet generation means in the preceding stage in this embodiment, the water droplet generation means in the wet dust collector proposed by the inventor No. 07-21211 (utility model registration No. 2107471) is used. In this embodiment, water is splashed by the air flow from the blower 42 and the serrated plate 49, and only fine water droplets are return-bended in the direction of the arrow X by the water flow guide plate 50 and the hanging plate 51, and a plurality of subsequent stages. The air flow passage cross-sectional area reduction portion 43 and the air flow passage cross-sectional area enlargement portion 47 are passed through. At this stage, water droplets are dropped into the water tank 44 and only water vapor is discharged from the humidified air discharge port 46.

FIG. 9 shows a longitudinal section and a transverse section parallel to the air (inside-chamber atmosphere) flow direction of the humidifier in the high-humidity refrigerator and cold storage according to this embodiment. In FIG. 9, 71 is a humidifier, 72 is a blower, 73 is an air (inside atmosphere) flow path, 75 is a water surface or ice surface, 78 is a partition plate, and 79 is an opening. FIG. 9 shows an embodiment in which an opening 79 is provided in the lower part of the air (inside atmosphere) flow path 73. Of course, the upper part can be an opening.

As the humidifier 71 , an air flow path (square tube) (made of a steel plate) having a width of 600 mm, a length (dimension in the air flow direction) of 600 mm, and a height of 200 mm is manufactured, and a partition plate 78 extending upward from the bottom surface of the square tube body is provided. In addition to standing, a partition plate 78 facing the water surface or ice surface 75 from the ceiling was fixed. In this embodiment, the distance between the lower end of the partition plate 78 suspended from the ceiling and the water surface or the ice surface 75, that is, the size of the air flow path cross-section reduced portion, varies the height of the water surface or ice surface within a range of 10 mm to 50 mm. It was adjusted by. As shown in FIG. 9, an opening 79 is provided below the central portion of the air flow path 73, and a blower 72 is disposed in the opening 79.

  An air flow path cross-sectional reduced portion is formed by the partition plate 78 suspended from the ceiling, and an air flow path cross-sectional enlarged portion is formed by the partition plate 78 and the partition plate 78 extending upward from the bottom surface of the square tube at the rear stage. The air channel cross-section reduced portion and the air channel cross-section enlarged portion are each provided in five stages downstream of the opening 79.

A blower 72 having a capacity of 100 V, 60 Hz, 1.7 A (rated), an air flow rate of 5.5 Nm ³ / min, and a static pressure of 0.85 kPa was attached to the opening 79. Humidified air and an outlet were provided on the outlet side in the air flow direction.

This humidifier 71 is installed in a 3360 mm × 2140 mm × 2170 mm height (internal dimensions) cool box, the water temperature in the water tank is 2.6 ° C., the air (outside air) temperature is 5.0 ° C., and the air humidity (RH) is 51.1. The interior was humidified under the condition of%. As a result, in the central part of the cool box, the inside temperature was 2.1 ° C. and the humidity (RH) was 96%.

In FIG. 10, the high-humidity refrigerator and cold storage which concern on this Example are shown. (A) is a top view, (b) is a longitudinal cross-sectional view. In FIG. 10, 81 is a humidifier, 82 is a blower, 83 is an air (inside atmosphere) flow path, 84 is a humidifying container, and 85 is a water surface or ice surface. Reference numeral 88 denotes a partition plate, which is fixed to the top plate of the humidifying container 84, suspended from the water surface or the ice surface 85, and fixed to the bottom plate of the humidifying container 84, and standing. In combination with what is fixed and suspended on the top plate of the humidifying container 84, an air (inside-chamber atmosphere) flow path 83 is formed that alternates between a reduced section and an enlarged section. 89 is an opening.

  In the embodiment shown in FIG. 10, an opening 89 is formed in the upper part, and air (inner chamber atmosphere) from the blower 82 is sent downward, and air (reservoir) in the plane radial direction by a plurality of partition plates 88. Inner atmosphere) channel 83 is formed. In the embodiment shown in FIG. 10, the partition plate 88 is formed in a flat circular shape, but can of course be formed in a polygonal shape.

  In the embodiment shown in FIG. 10, an air (inside chamber atmosphere) flow path 83 is formed in the plane radial direction without providing a plurality of partition plates 88, and air (inside chamber atmosphere) is supplied by air supply or intake by the blower 82. It is also possible to adopt a configuration for circulating in the air (inside atmosphere) flow path.

[Comparative Example 1]
Simulating the prior art disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2005-037006), the humidifier shown in FIG. 12 is manufactured, and the humidification in the same cool box as in Example 1 and Example 2 is performed. went. In FIG. 12, 61 is a humidifier, 62 is a blower, 64 is a water tank, 65 is a water surface, and 66 is a humidified air discharge port. As the blower 62, the same blower as in Example 1 and Example 2 was used.

The humidifier 61 is installed in the same cool box as in the first and second embodiments, and the water in the water tank 64 is cooled until it becomes equal to the ambient temperature in the cool box, and then the blower 62 is activated to hold the cool box. The inside was humidified. The relative humidity change at that time is shown in FIG.

  As apparent from FIG. 6, the comparative example 1 has a relative humidity of only 92% to 94% and a low humidification rate.

Although the present invention has been described based on examples and comparative examples, the present invention is not limited to this and can be implemented without departing from the spirit of the present invention. For example, as shown in FIG. 11, in the vast refrigerator, a discharge port or suction port 96 to take out the humid air is provided from the middle of the air (the internal atmosphere) passage 93 in the humidifier 91, the blower 92 It can also be configured to insufflate or inhale.

  Further, an air supply or intake blower 92 can also be attached at an arbitrary position. Furthermore, the air (inside-chamber atmosphere) flow path 93 is not limited to a straight or cross shape, but can be provided in a curved shape. In FIG. 12, 19 is a water supply port, 94 is a water tank, and 95 is a water surface or ice surface.

The longitudinal cross-sectional view of the humidifier in the high-humidity refrigerator which concerns on one Example of this invention, and a cool box. Longitudinal sectional view of a humidifier in a high-humidity refrigerator, cold storage according to another embodiment of the present invention Longitudinal sectional view of a humidifier in a high-humidity refrigerator, cold storage according to another embodiment of the present invention The top view of the humidifier in the high humidity refrigerator which concerns on the other Example of this invention, and a cool box. Longitudinal sectional view of the humidifier in the high-humidity refrigerator and cold storage shown in FIG. The graph which shows the humidification result in the cool box by Example 1 and Example 2 of this invention, and Comparative Example 1 The longitudinal cross-sectional view which shows the aspect which coat | covered the nonwoven fabric etc. which are rich in the moisture occlusion on the partition plate of the humidifier in the high humidity refrigerator which concerns on the other Example of this invention, and a cool box. The figure which shows the aspect which comprised the lower end part of the partition plate of the humidifier in the high-humidity refrigerator which concerns on the other Example of this invention in the cool box in the shape of a sawtooth, (a) is a longitudinal cross-sectional view of a humidifier, (b) is It is a front view which shows the detail of the partition plate lower end part seen from the air (chamber interior atmosphere) flow path direction. The longitudinal cross-sectional view which shows the aspect which provided the opening part in the air (chamber interior) flow path center upper part of the humidifier in the high humidity refrigerator which concerns on the other Example of this invention, and a cool box. The figure which shows the aspect which provided the opening part in the air (chamber atmosphere) flow path center lower part of the humidifier in the high-humidity refrigerator which concerns on the other Example of this invention, and a cold storage, (a) is a top view, (b) Is a longitudinal sectional view. The longitudinal cross-sectional view which shows the humidifier in the high humidity refrigerator which concerns on the other Example of this invention, and a cool box. A longitudinal sectional view showing a conventional low-temperature humidifier shown as a comparative example

DESCRIPTION OF SYMBOLS 11 Humidifier 12 Blower 13 Air flow path cross-section reduction part 14 Water tank or ice tank 15 Water surface or ice surface 16 Discharge port or intake port 17 Air flow path cross-sectional area expansion part 18 Partition plate 181 Nonwoven cloth coating partition plate 188 Lower end serrated partition Board 19 Water inlet
21 Humidifier 22 Blower 23 Air flow path cross-sectional reduction part 24 Water tank or ice tank 25 Water surface or ice surface 26 Discharge port or air inlet 27 Air flow path cross-sectional area expansion part 28 Partition plate
31 Humidifier 32 Blower 33 Air Channel Cross Section Reduced Section 34 Water Tank or Ice Tank 35 Water Surface or Ice Surface 36 Discharge Port or Air Intake Port 37 Air Channel Cross Section Expanded Section 38 Partition Plate
41 Humidifier 42 Blower 43 Air channel cross-section reducing portion 44 Water tank 45 Water surface 46 Discharge port or air inlet 47 Air channel cross-sectional area enlarged portion 48 Partition plate 49 Serrated plate 50 Water flow guide plate 51 Drooping plate
61 Humidifier 62 Blower 64 Water tank 65 Water surface 66 Discharge port or intake port
71 Humidifier 72 Blower 73 Air flow path 74 Water tank 75 Water surface or ice surface 78 Partition plate 79 Opening
81 Humidifier 82 Blower 83 Air flow path 84 Humidification container 85 Water surface or ice surface 88 Partition plate 89 Opening
91 Humidifier 92 Blower 93 Air flow path 94 Water tank 95 Water surface or ice surface 96 Discharge port or intake port

Claims (7)

A humidifier for use in a refrigerator or cold storage, with a water tank or ice tank at the bottom, forming a closed air (inside atmosphere) flow path in a plane perpendicular to the air (inside atmosphere) flow direction In the air channel, the air channel cross-sectional area reduced portion and the air channel cross-sectional area enlarged portion facing the water surface or ice surface in the water tank or ice tank are alternately provided in a plurality of stages in the air flow direction, and the air ( The atmosphere (inside the chamber) is configured such that the air (inside chamber atmosphere) flow repeatedly descends or rises toward the water surface or ice surface in a closed air (inside chamber atmosphere) flow path in a plane perpendicular to the flow direction. High humidity characterized in that a blower is provided on the inlet side or the outlet side of the air flow path, and the air (atmosphere) in the refrigerator or cool box is circulated through the air (internal atmosphere) flow path by the blower. Humidifier for refrigerator and cold storage. Air flow path cross-sectional area reduction portion, which its lower end between the air flow path portion hanging, a fixed water or ice surface in the water tank or ice bath is constituted by a partition plate with a gap, air the refrigerator according to claim 1 channel sectional area enlarged portion in which the upper portion is constituted by a partition plate having a gap between the erected from the air passage lower the air flow path ceiling, Humidifier for cold storage. 2. The refrigerator according to claim 1, wherein the air channel cross-sectional area reducing portion and the air channel cross-sectional area increasing portion are configured by curved or sawtooth members in a vertical plane parallel to the air flow direction. Humidifier for storage. A humidifier for use in a refrigerator or cold storage, with a water tank or ice tank at the bottom, forming a closed air (inside atmosphere) flow path in a plane perpendicular to the air (inside atmosphere) flow direction In the air channel, the air channel cross-sectional area reduced portion and the air channel cross-sectional area enlarged portion facing the water surface or ice surface in the water tank or ice tank are alternately provided in a plurality of stages in the air flow direction, and the air ( The atmosphere (inside the chamber) is configured such that the air (inside chamber atmosphere) flow repeatedly descends or rises toward the water surface or ice surface in a closed air (inside chamber atmosphere) flow path in a plane perpendicular to the flow direction. In addition, an opening is provided at the center of the air flow path in the air flow direction so as to open upward or downward, and to take in or discharge air (internal atmosphere) into the air flow path. A blower is provided and air is discharged by the blower. Or refrigerator sucked by the air in the refrigerator or refrigerator (the storage room atmosphere), characterized in that so as to flow into the air passage, cold storage for the humidifier.   The humidifier for a refrigerator and cooler according to claim 4, wherein the air (inside atmosphere) flow path is arranged in a plane cross shape. A humidifier for use in a refrigerator or cold storage, wherein a flat circular or polygonal humidifying container having a water tank or ice tank at the bottom is formed, and one or more air (inside atmosphere) is discharged on the outer peripheral surface of the humidifying container An outlet or an intake port is provided, and an opening is provided in the center of the flat surface of the humidifying container. Further, an air supply or intake blower is provided in the opening so that air (inside atmosphere) flows in the radial direction of the humidifying container. A plurality of air flow cross-sectional area reduction portions and air flow cross-sectional area expansion portions facing the water surface or ice surface in the water tank or ice tank are alternately provided in the air flow direction in the air flow path. As the air (inside atmosphere) flow repeatedly descends or rises alternately toward the water surface or ice surface in a closed air (inside atmosphere) flow path in a plane perpendicular to the air (inside atmosphere) flow direction. configuration, and further, the air by the blower (the internal Kiri囲) Refrigerator, cold storage for a humidifier, characterized in that the air in the ejection or suction to a refrigerator or cool box (storage room atmosphere) was set to circulate the air (the internal atmosphere) flow paths. 7. The refrigerator or cool box according to claim 1, wherein the air channel cross-sectional area reduced portion and the air channel cross-sectional area enlarged portion constituting member are covered with a cloth-like material rich in moisture storage. humidifier.

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