JP6646805B2 - Dehumidifier - Google Patents

Description

  The present invention relates to a dehumidifying device used for a living space or the like.

  BACKGROUND ART Dehumidifiers have been put to practical use to reduce the humidity of a living space and increase comfort.

  As its configuration, a main body case having an air inlet and an air outlet, dehumidifying means provided in the main body case, and air outside the main body case sucked from the air suction port are passed through the dehumidifying means. And a blower that blows out of the main body case from the air outlet.

  Further, the dehumidifying means is constituted by a refrigeration cycle in which a compressor, a radiator, an expander, and a heat absorber are sequentially connected in a ring shape, and a part of the air sucked into the main body case from the air suction port by the blower is the aforementioned. A heat absorber, a first passage of the heat exchanger, and a configuration in which the air is blown out of the main body case from the air outlet through the radiator, and the other part of the air sucked from the air suction port by the blower is the second part of the heat exchanger. The air outlet is blown out of the main body case through two passages and a radiator (for example, Patent Document 1 below).

Japanese Utility Model Publication No. 56-20628

  In the above conventional example, a part of the air sucked into the main body case from the air suction port by the blower is cooled by the heat absorber to cause dew condensation, and thereafter, the air outlet through the first passage of the heat exchanger and the radiator. From the body case.

  Another portion of the air sucked from the air inlet by the blower passes through the second passage of the heat exchanger, and is blown out of the main body case from the air outlet through the radiator.

  That is, the room air passing through the second passage of the heat exchanger is cooled by the air flowing from the heat absorber to the first passage of the heat exchanger, and the dew condensation is also attempted here.

  However, in the above configuration, the cooling of the radiator is not sufficient, and therefore, the exhaust heat cannot be treated as a refrigeration cycle. However, there is a problem that the dehumidifying efficiency does not improve. In other words, for the refrigeration cycle, in order for the heat absorber to absorb heat sufficiently, it is necessary to sufficiently radiate the heat on the radiator side. However, there is a case where heat is not sufficiently radiated only by this air volume, in which case, there is a problem that the heat absorption amount of the heat absorber is reduced, the condensation of moisture does not increase, and the dehumidifying efficiency is reduced. .

  Therefore, an object of the present invention is to provide a dehumidifying device having an enhanced dehumidifying effect.

The dehumidifying device according to the present invention dehumidifies air in the main body case by a refrigeration cycle in which a main body case having an air inlet and an air outlet and a compressor, a radiator, an expander, and a heat absorber are sequentially connected. Dehumidifying means, and a blower that blows air outside the main body case sucked from the air suction port through the dehumidifying means and then blows the air out of the main body case from the air outlet, and the dehumidifying means uses the air by the blower. A first dehumidifying path for blowing a part A of the air sucked into the main body case from the suction port to the outside of the main body case from the air outlet through the heat absorber, the first passage, and the radiator; and the blower. A second dehumidifying path for blowing a part B of the air sucked from the air inlet from the air outlet through the second passage and the radiator to the outside of the main body case; A heat exchanger for exchanging heat between air flowing through a passage and air flowing through the second passage; and a part C of air sucked from the air inlet by the blower through the air outlet through the radiator. A bypass air passage that blows out of the main body case from outside, and between the air suction port and the radiator in the bypass air passage, a bent portion that is a part of a refrigerant pipe of the heat absorber projects. And thereby achieve the intended purpose.

By the above, increasing the amount of air flowing into the radiator, the radiator air inlet can you to cool, since the radiator can be further cooled, to increase the amount of heat absorption in the heat absorber This can promote water condensation and enhance dehumidification efficiency.

FIG. 1 is a perspective view of a dehumidifier according to an embodiment of the present invention. AA sectional view of the dehumidifier according to the embodiment of the present invention. FIG. 3 is a perspective view of a configuration around a heat absorber of the dehumidifier and an air passage according to the embodiment of the present invention. Exploded perspective view of a heat exchanger of a dehumidifier according to an embodiment of the present invention. An upper view showing an airflow around an air inlet of a dehumidifier according to an embodiment of the present invention. FIG. 1 is a configuration diagram around a heat absorber, a heat exchanger, and a radiator of a dehumidifier according to an embodiment of the present invention.

The dehumidifying device according to the embodiment of the present invention includes a main body case having an air inlet and an air outlet, and a refrigeration cycle in which a compressor, a radiator, an expander, and a heat absorber are sequentially connected. A dehumidifying means for dehumidifying air, and a blower for blowing air outside the main body case sucked from the air suction port to the outside of the main body case from the air outlet after passing through the dehumidifying means, wherein the dehumidifying means comprises: A first dehumidifying path for blowing a portion A of air sucked into the main body case from the air suction port to the outside of the main body case from the air outlet through the heat absorber, the first passage, and the radiator; A second dehumidification path for blowing a portion B of the air sucked from the air suction port out of the main body case through the air outlet through the second passage and the radiator; A heat exchanger for exchanging heat between the air flowing through the first passage and the air flowing through the second passage; and a portion C of the air sucked from the air suction port by the blower through the air radiator. A bypass air passage that blows out from the outlet to the outside of the main body case is provided , and a bent portion that is a part of a refrigerant pipe of the heat absorber protrudes between the air suction port and the radiator in the bypass air passage. Things.

Thus, in the bypass air passage, increase the amount of air flowing into the front Symbol radiator, radiator incoming air can is cooled, since the radiator can be further cooled, The amount of heat absorbed by the heat absorber can be increased, moisture condensation can be promoted, and dehumidification efficiency can be increased.

  Further, the dehumidifier according to the embodiment of the present invention, the heat sink from the air inlet, the first air passage of the heat exchanger, the radiator and the blower are juxtaposed to be arranged in a straight line, The bypass air passage communicates the air suction port with the radiator through a gap provided between the heat exchanger and the radiator.

  Thereby, the bypass air passage can be formed with a simple configuration in which a gap is provided between the radiator and the heat exchanger.In the bypass air passage, air does not pass through other component parts. Since it directly flows into the radiator, the amount of air flowing into the radiator can be increased, and the radiator can be further cooled, so that the amount of heat absorbed by the heat sink can be increased. It is possible to promote the condensation of water and improve the dehumidifying efficiency with a simple structure.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. The following embodiments are examples embodying the present invention, and do not limit the technical scope of the present invention. The same parts are denoted by the same reference numerals throughout the drawings, and description thereof is omitted. Further, in each drawing, the description of the details of each part not directly related to the present invention is omitted.

(Embodiment 1)
FIG. 1 is a perspective view of a dehumidifier 3 according to the present embodiment.

  The dehumidifying device 3 includes a box-shaped main body case 1, and the inside and outside of the dehumidifying device 3 are distinguished by the main body case 1. On the back side of the main body case 1, an air suction port 2 for sucking air from a direction perpendicular to the back side is arranged. An air outlet 4 is arranged at an upper portion on the front side opposite to the rear surface.

  The air suction port 2 has a suction port 2a having a substantially rectangular suction surface, and a substantially U-shaped suction surface which goes around the upper and left and right sides of the suction port 2a and faces downwardly to open. And a suction port 2b. FIG. 2 is a cross-sectional view of the dehumidifier 3 according to the present embodiment, taken along line AA in FIG.

  After the dehumidifying means 5 for dehumidifying the air taken in the main body case 1 and the air outside the main body case 1 sucked from the air suction port 2 are passed through the dehumidifying means 5 in the main body case 1. A blower 6 that blows out of the main body case 1 from the air outlet 4 is provided.

  The dehumidifying means 5 includes a refrigeration cycle in which a compressor 7, a radiator 8, an expander 9, and a heat absorber 10 are sequentially connected.

  A heat absorber 10 is provided on the side of the air inlet 2 (upstream in the air flow direction) in the air passage from the air inlet 2 to the air outlet 4 in the main body case 1, and on the air outlet 4 side (downstream in the air flow direction). Side) is provided with a radiator 8.

  Further, a space is provided between the heat absorber 10 and the radiator 8, and a sensible heat exchange type heat exchanger 11 is arranged in this space.

  That is, the dehumidifying unit 5 blows a part A of the air sucked from the air suction port 2, that is, the air sucked from the suction port 2 a through the heat absorber 10, the first passage in the heat exchanger 11, and the radiator 8. A first dehumidifying path 41 that blows out of the main body case 1 from the outlet 4 is provided.

  Further, in the main body case 1, a pre-cooling air passage leading to the heat exchanger 11 is provided by passing from the air suction port 2 around the heat absorber 10 to receive a cooling effect from the heat absorber 10.

  That is, the dehumidifying means 5 transmits the other part B of the air sucked from the air suction port 2, that is, the air sucked from the suction port 2 b, in addition to the first dehumidifying path 41, to the pre-cooled air path and the heat exchanger 11. There is provided a second dehumidifying path 51 that blows out of the main body case 1 from the air outlet 4 through the second passage and the radiator 8. The details of the pre-cooling air path will be described later.

  The heat exchanger 11 includes an opening 17 in the first dehumidifying path and an opening 18 in the second dehumidifying path.

  The opening 17 in the first dehumidifying path includes an upstream opening 17a on the heat absorber 10 side and a downstream opening 17b on the radiator 8 side. That is, the opening 17 in the first dehumidifying path is provided in the first dehumidifying path 41, and connects the heat exchanger 11 and the heat absorber 10 on the upstream side and the heat exchanger 11 and the radiator 8 on the downstream side. connect.

  The opening 18 in the second dehumidifying path includes an upstream opening 18a on the pre-cooling air path side and a downstream opening 30 on the water collecting means 12a side (vertically downward direction). That is, the opening 18 in the second dehumidifying path is provided in the second dehumidifying path 51, and connects the pre-cooled air path and the heat exchanger 11 on the upstream side and the lower part of the heat exchanger 11 and the radiator 8 on the downstream side. And concatenate. The water collecting means 12a has a funnel shape and is provided below the heat absorber 10 and the heat exchanger 11. Further, a water collecting tank 12b is disposed below the water collecting means 12a so as to be detachable from the main body case 1.

  In other words, dew is formed in the heat absorber 10 and the heat exchanger 11, and the condensed water is collected by the funnel-shaped water collecting means 12a and flows into the water collecting tank 12b.

  Subsequently, the detailed structure of the pre-cooled air passage will be described with reference to FIG. FIG. 3 is a perspective view of the configuration around the heat absorber and the air passage.

  As shown in FIG. 3, the pre-cooling air passage 60 has an air passage 60 a starting from the side of the suction port 2 b and reaching the upstream opening 18 a via the side surface of the heat absorber 10 and the side surface of the heat exchanger 11, An air path 60b is formed from the upper part of the inlet 2b as a starting point to the upstream opening 18a via the upper surface of the heat absorber 10.

  An air path wall 81 is provided around the heat absorber 10, that is, on the upper surface and both side surfaces.

  The air passage wall 81 further extends on both sides to the same sides of the adjacent heat exchanger 11. That is, the air path wall 81 blocks the ventilation between the first dehumidifying path 41 and the pre-cooling air path 60 between the heat absorber 10 and the heat exchanger 11, that is, the inner peripheral wall surface (the 1 side surface on the dehumidifying path side). Further, the outer peripheral wall surface of the pre-cooling air passage 60 is formed by the inner surface of the main body case 1. The air path wall 81 is made of a material capable of exchanging heat between the first dehumidifying path 41 and the pre-cooling air path 60, for example, a thin resin plate or metal of about 1 to 3 mm at least at a portion around the heat absorber 10. It is a plate.

  The heat absorber 10 has a refrigerant pipe 101 composed of a straight pipe portion 101a and a bent portion 101b. The straight pipe portion 101a has a plurality of flat fins made of metal for transmitting heat of the refrigerant flowing through the refrigerant pipe 101 to air passing through the heat absorber 10.

  The straight pipe portion 101 a and the fins of the heat absorber 10 are arranged in an internal space surrounded by the air path wall 81. That is, a portion A of the air passing through the first dehumidifying path 41 is provided so as to pass through the straight pipe portion 101a and the fin portion.

  On the other hand, the bent portion 101 b of the heat absorber 10 is disposed so as to protrude from the air passage wall 81 surrounding the heat absorber 10 to the precooled air passage 60. In other words, another portion B of the air passing through the pre-cooling air passage 60 of the second dehumidifying passage 51 is provided so as to pass through the air passage wall 81 around the heat absorber 10 and the outer pipe wall of the bent portion 101b.

  Subsequently, the detailed structure of the heat exchanger 11 will be described with reference to FIG. FIG. 4 is an exploded perspective view of the heat exchanger.

  As shown in FIG. 4, the heat exchanger 11 has a structure in which a plurality of synthetic resin plates 13 for forming a vertical air passage and a plurality of synthetic resin plates 14 for forming a horizontal air passage are alternately superposed. ing.

  A plurality of ribs 15 extending in the vertical direction are formed integrally with the plate 13 at predetermined intervals on the surface of the synthetic resin plate 13 forming a vertical air passage. One surface of the rib 15 is in close contact with the back surface of the adjacent plate body 14, so that a vertical air path is formed by the surface of the plate body 13 and the rib 15 and the back surface of the plate body 14.

  Similarly, a plurality of ribs 16 extending in the lateral direction are integrally formed with the plate body 14 at predetermined intervals on the surface of the synthetic resin plate body 14 that forms the horizontal air passage. When one surface of the rib 16 is in close contact with the back surface of the adjacent plate 13, a horizontal air path is formed by the surface of the plate 14, the rib 16, and the back surface of the plate 13.

  The vertical airway and the horizontal airway have independent airway spaces, that is, there is no air flow.

  The heat exchanger 11 thus configured has a substantially rectangular parallelepiped shape, and the opening 17 in the first dehumidifying path is formed as shown on the long side (the left and right sides in FIG. 3) facing the heat exchanger 11. The second dehumidifying passage opening 18 is formed on the opposite short side (upper and lower sides in FIG. 3). Further, the downstream opening 30 on the short side is inclined with respect to the first dehumidifying path 41, that is, the horizontal plane, and the inclination direction is a direction in which the opening surface of the downstream opening 30 faces the radiator 8 side. .

  Next, the operation of the dehumidifier will be described mainly with reference to FIG.

  The air sucked into the main body case 1 from the air suction port 2 by driving the blower 6 (a part A of the air suctioned from the suction port 2a) is an upstream opening of the heat absorber 10 and the heat exchanger 11. After passing through the first passage 17a and the horizontal passage, it is taken into the radiator 8 from the downstream opening 17b. Thereafter, the air is blown out of the main body case 1 from the air outlet 4 through the radiator 8 and the blower 6. That is, a part A of the air sucked from the suction port 2 a is blown out of the main body case 1 via the first dehumidifying path 41.

  Then, a part A of the air flowing in such a path is first cooled by the heat absorber 10, so that dew condensation occurs here, and the dew condensation water drops downward and is collected by the funnel-shaped water collecting means 12a. It is collected and made to flow into the water collecting tank 12b.

  Further, the dried air A after the dew condensation water has been dropped passes from the upstream opening 17a of the heat exchanger 11 through the first horizontal passage, passes through the downstream opening 17b, and then passes through the radiator 8, The air is blown out of the main body case 1 from the air outlet 4 through the blower 6. Thus, the indoor humidity can be reduced.

  On the other hand, the air sucked into the main body case 1 from the air suction port 2 by driving the blower 6 (the other portion B of the air sucked from the suction port 2b) flows into the upstream opening 18a of the heat exchanger 11. Then, the air passes through a vertical second passage, and is blown out of the main body case 1 from the air outlet 4 through the downstream opening 30, the radiator 8, and the blower 6. That is, another portion B of the air sucked from the suction port 2b is blown out of the main body case 1 via the second dehumidifying path 51. Since the downstream opening 30 is inclined toward the radiator 8 as described above, the air B flowing out of the downstream opening 30 flows to the radiator 8 smoothly.

  Since the first horizontal passage (the passage through which a portion of the air A passes) of the heat exchanger 11 and the second vertical passage (the passage through which the other portion B of the air passes) intersect, The air (the part A of the air) flowing through the first passage and the air (the other part B of the air) flowing through the second passage can exchange heat.

  Here, a part A of the air flowing through the first lateral passage of the heat exchanger 11 is cooled by passing through the heat absorber 10. Therefore, the part A of the air can lower the temperature of the other part B of the air flowing through the second passage not passing through the heat absorber 10 by the heat exchange action of the heat exchanger 11.

  Another portion B of the air passing through the pre-cooling air passage 60 receives the cooling effect of the heat absorber 10 via the air passage wall 81. Further, the cooling effect by the bent portion 101b is also received. This is because the refrigerant having a temperature lower than the room temperature passes through the bent portion 101b, so that the temperature of the air outside the bent portion 101b of the heat absorber 10 protruding into the pre-cooling air passage 60 decreases. As a result, the temperature of the other portion B of the air passing through the pre-cooling air passage 60 is cooled to around the dew point temperature at which dew condensation occurs.

  Another portion B of the air cooled to around the dew point temperature flows into the second passage of the heat exchanger 11. The other portion B of the air that has flowed into the heat exchanger 11 receives a cooling effect due to the heat exchange action of the heat exchanger 11, and its temperature drops to a temperature equal to or lower than the dew point temperature. The other portion B of the air that has dropped to the dew point temperature or lower causes dew condensation in the second passage of the heat exchanger 11.

  Here, in the conventional configuration, the air flowing into the heat exchanger 11 is at room temperature, and dew condensation does not occur unless the air is cooled to the dew point temperature. Therefore, the air inlet of the heat exchanger 11 where cooling by the heat exchanger 11 starts ( Dew condensation did not occur near the upstream opening 18a). However, in the configuration according to the present embodiment, the other portion B of the air flowing into the second passage of the heat exchanger 11 is cooled to near the dew point temperature by passing through the pre-cooling air passage 60, so that heat exchange is performed. Dew condensation can also occur at the air inlet (upstream opening 18a) of the second passage of the vessel 11.

  Thereby, most of the cold heat received by the other portion B of the air when passing through the heat exchanger 11 can be effectively used for latent heat removal, that is, dew condensation, instead of sensible heat removal of the other portion B of the air. become. As a result, the amount of dew condensation in the heat exchanger 11 can be increased, and thus the dehumidifier having the configuration according to the present embodiment can further enhance the dehumidifying effect.

  Further, a suction port 2b into which another part B of the air is sucked is provided on an outer peripheral side adjacent to the suction port 2a into which a part A of the air is sucked. Therefore, the amount of inflow of air sucked from the suction port 2b can be increased by the attraction effect of the air sucked into the suction port 2a. That is, as shown in FIG. 5, an air flow sucked into the suction port 2a forms an air flow 90 from the outside of the main body case 1 to the suction port 2a, and around the air flow 90 is attracted by the viscosity of the air. An induced flow 91 is formed. By sucking the induced flow 91 from the suction port 2b provided on the outer peripheral side of the suction port 2a, the second dehumidifying path can suck more air. Therefore, the amount of air passing through the second dehumidifying path increases, and the amount of dew condensation in the heat exchanger 11 increases, so that the dehumidifying effect can be further enhanced. In other words, if the same dehumidifying effect is obtained, the size of the dehumidifying device can be reduced.

  Now that the basic configuration and operation have been understood from the above description, a specific configuration will be described with reference to FIGS.

  The feature of the present embodiment is that a bypass air passage is provided. The bypass air path is a path through which a part C of the air sucked from the air inlet 2 by the blower 6 blows out of the main body case 1 from the air outlet 4 through the radiator 8.

  That is, a part C of the air sucked from the air suction port 2 flows directly to the radiator 8.

  Specifically, a heat absorber 10, a first air path of the heat exchanger 11, a radiator 8, and a blower 6 are provided side by side from the air inlet 2 in a straight line. A heat absorber 10 is provided on the side of the air inlet 2 (upstream in the air flow direction) in the air passage from the air inlet 2 to the air outlet 4 in the main body case 1, and on the air outlet 4 side (downstream in the air flow direction). Side) is provided with a radiator 8. A heat exchanger 11 is arranged between the heat absorber 10 and the radiator 8. A gap 70 is provided between the heat exchanger 11 and the radiator 8. The bypass air passage is the gap 70 provided between the heat exchanger 11 and the radiator 8. The air inlet 2 and the radiator 8 communicate with each other through the gap 70.

  In the first dehumidifying path 41, a part A of the air sucked from the air suction port 2 passes through the heat absorber 10, is cooled by the heat absorber 10, condenses moisture, and is taken out as dew water to dehumidify. However, when the air flow rate is too high, when the air velocity passes through the heat absorber 10, a phenomenon occurs in which moisture passes before condensing and the amount of dew condensation does not improve (bypass factor). On the other hand, if a certain amount of airflow is not allowed to flow, the amount of water flowing in is small, so that the amount of dew condensation does not improve. As described above, there is an optimal airflow as the airflow.

  Further, in the second dehumidifying path 51, when a part B of the air sucked from the air suction port 2 passes through the second passage of the heat exchanger 11, the air cooled by the heat absorber 10 passing through the first passage. Although the moisture is condensed and dehumidified by heat exchange with the heat exchange, the condensation itself does not occur unless the air is cooled below the dew point temperature of the air. Since the cooling temperature is determined by the temperature of the outlet air of the heat absorber 10, if the air volume is too large, it cannot be cooled below the dew point. As described above, there is an optimum air volume even at this air volume.

  On the other hand, in order to efficiently cool the heat absorber 10 as a refrigeration cycle, it is essential to increase the heat radiation amount in the radiator 8. It is advantageous that the air flow passing through the radiator 8 is large.

  As described above, by providing the bypass air passage, the air flow to the radiator 8 can be increased while maintaining the first and second dehumidification passages at the optimum air flow. Accordingly, in the bypass air passage, the air flows directly into the radiator 8 without passing through other component parts, so that the amount of air flowing into the radiator 8 can be increased, and the radiator 8 Since the heat can be further cooled, the amount of heat absorbed by the heat absorber 10 can be increased, the water condensation can be promoted, and the dehumidifying efficiency can be increased.

  The gap 70, which is a bypass air passage, may be disposed on the left and right side surfaces of the main body case 1 and may have a substantially vertically-long rectangular shape extending vertically. In this case, a part C of the air sucked from the air inlet 2 is sent to the radiator 8 through the gap 70 that is a bypass air passage. And there is no difference in the above-mentioned effect.

  Since the dehumidifying device according to the present invention provides a higher dehumidifying effect, it is extremely useful for dehumidifying indoor air and drying clothes.

DESCRIPTION OF SYMBOLS 1 Main body case 2 Air inlet 3 Dehumidifier 4 Air outlet 5 Dehumidifier 6 Blower 7 Compressor 8 Radiator 9 Expander 10 Heat sink 11 Heat exchanger 12a Water collecting means 12b Water collecting tank 13 Plate 14 Plate 15 Rib 16 Rib 17 First dehumidifying path opening 17a Upstream opening 17b Downstream opening 18 Second dehumidifying path opening 18a Upstream opening 30 Downstream opening 41 First dehumidifying path 51 Second dehumidifying path 60 Pre-cooled air passage 70 Clearance (bypass air passage)
90 Air Flow 91 Induced Flow 101 Refrigerant Pipe 101a Straight Pipe 101b Bent

Claims (2)

A main body case having an air inlet and an air outlet, a dehumidifying means for dehumidifying air in the main body case by a refrigeration cycle in which a compressor, a radiator, an expander, and a heat absorber are sequentially connected; and A blower that blows out the air outside the main body case through the dehumidifying means and then blows the air out of the main body case from the air outlet, wherein the dehumidifying means is the air sucked into the main body case from the air suction port by the blower. A first dehumidification path for blowing a part A of the air from the air outlet through the heat sink, the first passage, and the radiator to the outside of the main body case; and a part B of the air sucked from the air suction port by the blower. A second passage, a second dehumidifying passage for blowing out of the main body case from the air outlet through the radiator, an air flowing through the first passage and the second passage. A heat exchanger for exchanging heat with the air to be discharged, and a bypass air passage for blowing a portion C of the air sucked from the air suction port by the blower to the outside of the main body case from the air outlet through the radiator. the provided, between the radiator and the air inlet in the bypass air path is bent portion which is a part of the refrigerant pipe of the heat absorber is, dehumidifier characterized that you have protruded. The heat sink, the first air path of the heat exchanger, the radiator, and the blower are juxtaposed from the air suction port so as to be aligned in a straight line, and the bypass air path includes the air suction port and the radiator. 2. The dehumidifier according to claim 1, wherein the first and second radiators communicate with each other through a gap provided between the heat exchanger and the radiator.