JP2009264636A - Humidifying/dehumidifying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a humidifying/dehumidifying device capable of simplifying and miniaturizing a constitution by focusing attention on increase in dimensions of a device utilizing a Peltier element and a device applying adsorption rotary system. <P>SOLUTION: In this humidifying/dehumidifying device, a casing 1, an air blowing means 2, an adsorbent module 3 and a flow channel switching section 4 are successively disposed along the air flowing direction, a humidified air supply opening 8 and a dehumidified air supply opening 9 are formed at a most downstream section of the casing 1, and the adsorbent module 3 comprises the Peltier element 30 comprising a pair of plate faces respectively functioned as a heat absorbing section and a heat radiating section, and a first adsorbing element 31A and a second adsorbing element 31B respectively disposed on the plate faces in a state of allowing the adsorbent to be held on surfaces of ventilating fins. The electric current flowing in the Peltier element 30 is reversed to switch the heat absorbing section and the heat radiating section, and destinations of the airs are switched by a flow channel switching door 6 by an actuator 7 using shape-memory alloy. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a dehumidifying / humidifying device that takes in air (for example, room air) and blows out the dehumidified air and the humidified air. In particular, the adsorption / desorption function of the adsorbent is used, for example, The present invention relates to a dehumidifying / humidifying device that supplies humidified air to a person's side and supplies dehumidified air to a window glass side or the like in winter.

  As a conventional technique for performing dehumidification and humidification, for example, there is an “air conditioner” disclosed in Patent Document 1 below. This is, for example, in summer, in order to save energy in the air conditioner (cooler) for cooling, and to supply dehumidified comfortable air to the side where people are present, it is partitioned into two series of air passages by a partition plate, In addition, the heat exchange section and the moisture absorbing member (adsorption rotor) are sequentially arranged so as to straddle the two air passages with respect to the air flow path having both the inlet and exhaust ports at both ends.

  In this air conditioner, the air passing through one air passage is cooled by the heat exchange unit, the air passing through the other air passage is heated, and the moisture absorbing member is rotated or shaken between the two air passages. Repeat the adsorption and desorption operations. And the air dehumidified through one ventilation path is supplied continuously indoors, and the air humidified through the other ventilation path is continuously discharged | emitted outside the room.

Further, the heat exchanging part is configured by disposing a heat conducting part in each of the heat absorbing part and the heat radiating part of the Peltier element, and cools the air in one air passage by the heat conducting part on the heat absorbing part side of the Peltier element, The air in the other air passage is heated by the heat conducting part on the heat radiating part side of the Peltier element, thereby supplying the moisture absorbing member with cold heat for promoting adsorption and warm heat necessary for desorption.
JP 2000-146220 A

  By the way, when the dehumidifying / humidifying device is configured based on the above dehumidifying / humidifying technology using the adsorbing material, the air blowing path that configures the adsorbing region and the desorbing region by causing the rotating member such as the adsorbing rotor to hold the adsorbing material. In order to drive the rotating member in a specific space such as the above, the drive mechanism is necessary, and there is a problem that the apparatus configuration cannot be simplified. Furthermore, there is a problem that a casing having a volume sufficient to accommodate the rotating member and its driving mechanism is required, and it is difficult to reduce the size.

  In addition, when the Peltier element is used as described above, the adsorbent can be heated and cooled at the same time as compared with the conventional apparatus in which the adsorbent is heated and desorbed by an electric heater. Efficiency can be increased. However, even when the Peltier element is used, the air in the air passage is once heated / cooled through the heat conducting portions on both sides of the Peltier element, and the adsorbent is heated / cooled through the air itself passing through the adsorption rotor. Because of cooling, there is a problem in that the thermal efficiency is low, and the Peltier element itself is increased in size as compared with the amount of heat generated.

  Furthermore, in the adsorption rotor method, the adsorbent of the adsorption rotor is cooled by the air to be dehumidified, so that the heat of the adsorbent functions as a whole because the temperature of the air itself rises while passing through the adsorption rotor due to heat dissipation by adsorption. It is not fully demonstrated. In addition, since the adsorbent of the adsorption rotor is heated by the air to be humidified, the temperature of the air itself is lowered while passing through the adsorption port due to the endotherm due to desorption, and similarly, the adsorbent as a whole has a sufficient desorption function. Can not demonstrate. As a result, it is necessary to increase the ventilation area to grip more adsorbent than necessary, which tends to increase the size of the adsorption rotor.

  The present invention has been made paying attention to such problems existing in the prior art, and an object of the present invention is to provide a dehumidifying / humidifying device capable of simplifying the device configuration and reducing the size of the device. is there.

In order to achieve the above object, the present invention employs the following technical means. That is, according to the first aspect of the present invention, the dehumidifying / humidifying device is a dehumidifying / humidifying device that takes in air and blows it out as dehumidified air and humidified air. ), The adsorbent module (3) and the flow path switching unit (4) are sequentially arranged along the air flow direction, and the humidified air outlet (8) for blowing out the humidified air to the most downstream portion of the casing (1). And a dehumidifying air outlet (9) for blowing out dehumidifying air, and the adsorbent module (3) includes a pair of plate surfaces (30a, 30b) each functioning as a heat absorbing part and a heat radiating part (30). ), And a first adsorbing element (31A) and a second adsorbing element (31B) disposed on each of the plate surfaces (30a, 30b) by holding the adsorbent on the surface of the fin (33) that can be ventilated. Air blowing means ( ) Is arranged in the casing (1) so as to be able to pass through each adsorbing element (31A, 31B), and the flow path switching unit (4) is provided with a humidified air outlet (8) and a dehumidified air outlet ( 9), the air passing through the first adsorbing element (31A) and the air passing through the second adsorbing element (31B) can be separately distributed, and the distribution destination is determined by the flow path switching door (6). The Peltier element (30) is configured to be switchable, and the current flowing through the Peltier element (30) is reversed to switch the heat absorption part and the heat dissipation part of the Peltier element (30). In the dehumidifying / humidifying device configured to switch the distribution destination of each air by the switching door (6),
The flow path switching door (6) is driven by an actuator (7) using a shape memory alloy that returns to its original shape when heated even if it is deformed.

  According to the first aspect of the present invention, the shape memory alloy part (70) of the actuator (7) is attracted so as to rotate the flow path switching door (6) with the normal spring (71), for example. In the case of the shape memory spring (70A), if the shape memory spring (70A) is not heated, the flow path switching door (6) rotates to one side by being pulled by the normal spring (71) and the shape memory is restored. The spring (70A) is stretched.

  Further, when the shape memory spring (70A) is heated, the flow path switching door (6) rotates to the other side due to the force of returning from the stretched state to the original shape, and the normal spring (71 ) Is stretched. Thus, since the state of the flow path switching door (6) can be switched depending on whether the shape memory alloy part (70) of the actuator (7) is heated, the configuration of the heat removal apparatus can be simplified, In addition, the heat removal and heating device can be reduced in size.

  Moreover, in invention of Claim 2, in the dehumidification / humidification device of Claim 1, the shape memory alloy part (70) of the actuator (7) and the Peltier element (30) are connected in parallel to generate a DC voltage. The configuration is such that the polarity can be switched, and the shape memory alloy part (70) is connected in series with an element (50) through which current flows only in one direction.

  According to the second aspect of the present invention, since the current flows only to the shape memory alloy portion (70) by the element (50) when the polarity is any of the polarities. When the polarity is reversed, the deformation becomes easy. For this reason, switching the heat absorption side / heat radiation side of the Peltier element (30) by simply switching the polarity of the DC voltage applied in parallel to the shape memory alloy part (70) and the Peltier element (30) of the actuator (7). Since the switching of the flow path switching door (6) is performed in synchronization, a dedicated control circuit for the actuator (7) becomes unnecessary.

  In the invention according to claim 3, in the dehumidifying / humidifying device according to claim 1, a part (34) of the adsorption element (31A, 31B) is extended to the outside of the casing (1), and the plate surface ( 30a, 30b) is configured to transfer heat to the shape memory alloy part (70) through a part (34) of the adsorption element (31A, 31B).

  According to the third aspect of the invention, the cold / heat on either side of the Peltier element (30) is caused by the shape memory alloy of the actuator (7) via a part (34) of the adsorption element (31A, 31B). By transferring heat to the part (70) and heating / cooling the shape memory alloy part (70), it is possible to synchronize by switching the heat absorption side / heat radiation side of the Peltier element (30) without electrical control. Thus, the flow path switching door (6) can be switched.

Moreover, in invention of Claim 4, in the dehumidification / humidification apparatus of Claim 1, the flow-path switching part (4) is the 1st partition part arrange | positioned in the immediately downstream side of the adsorbent module (3). The first inflow space (3A) into which air that has passed through the first adsorption element (31A) flows in by (40) and the second inflow space (3B) into which air that has passed through the second adsorption element (31B) flows in. The downstream side of the first partition part (40) flows out to the humidified air flow passage (80) flowing out to the humidified air outlet (8) by the second partition part (11) and to the dehumidified air outlet (9). The dehumidifying air flow passage (90) is partitioned, and the flow path switching door (6) is disposed between the first partition (40) and the second partition (11), and the humidified air flow passage (80). Communicate with one of the first inflow space (3A) and the second inflow space (3B) and close the other Then, the humidifying side doors (61a, 61b) capable of reversing the communication / blocking state, the dehumidified air flow passage (90), and one of the first inflow space (3A) and the second inflow space (3B) are communicated. And the other dehumidifying side door (62a, 62b) capable of reversing the communication / blocking state on one rotating shaft (60),
By rotating the flow path switching door (6) to the first flow path switching position, the first inflow space (3A) and the humidified air flow passage (80) communicate with each other, and the second inflow space (3B) and the dehumidification are communicated. The air flow passage (90) communicates, and the flow passage switching door (6) is rotated to the second flow passage switching position, whereby the first inflow space (3A) and the dehumidified air flow passage (90) communicate with each other. However, the second inflow space (3B) and the humidified air flow passage (80) communicate with each other.

  According to the fourth aspect of the present invention, the flow path switching unit (4) can be configured by securing a space that allows the flow path switching door (6) to rotate immediately downstream of the adsorbent module (3). Thus, the configuration of the heat removal apparatus can be simplified, and the heat removal apparatus can be reduced in size.

  Moreover, in invention of Claim 5, in the dehumidification / humidification apparatus in any one of Claim 1 thru | or 4, it is forming the humidification wind blower outlet (8) small with respect to the dehumidification wind blower outlet (9). It is a feature. According to the fifth aspect of the present invention, the relative humidity of the heated air can be increased by reducing the amount of warmed air with respect to the amount of dehumidified air. In addition, the code | symbol in the parenthesis as described in a claim and said each means is an example which shows a corresponding relationship with the specific means as described in embodiment mentioned later.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1: shows the structure outline | summary of the dehumidification / humidification apparatus in 1st Embodiment of this invention, (a) is a top view, (b) is side sectional drawing. In the present embodiment, the dehumidifying / humidifying device of the present invention is installed in a vehicle interior of a vehicle, and is applied to a vehicle dehumidifying / heating device that takes in air in the vehicle interior and blows out the dehumidified air and humidified air. .

  This dehumidifying / humidifying device is used for supplying dehumidified air for defogging to the inner surface side of the vehicle front window glass and supplying humidified air to the passenger side, for example, in winter when the outside air is dry. In addition, dehumidified air can be supplied to the occupant side in summer when the outside air is at high humidity by changing the connection of the electric circuit described later. Furthermore, the present dehumidifying / humidifying device can be incorporated into an existing air conditioner, but as shown in the following embodiments, the entire device can be configured in a thin box shape and installed on the ceiling portion of the vehicle interior. it can.

  As shown in FIG. 1, the dehumidifying / humidifying device is configured by connecting a blower (blower unit) 2 to one end of a casing 1 formed of resin as a flow path through which air flows. The blower 2 includes a flat scroll casing 20 formed of a resin, a centrifugal multiblade fan (sirocco fan) 21 disposed therein, and a blower motor 22 that drives the fan 21. The vehicle interior air is sucked from a suction port 23 opened below the scroll casing 20 and blown out from a blower outlet 24.

  The blower outlet 24 of the blower 2 is connected to the suction port 10 of the casing 1, and supplies the sucked vehicle interior air into the casing 1. Two blowers 2 may be provided corresponding to a pair of adsorption elements 31A and 31B of the adsorbent module 3 described later. In the casing 1, the adsorbent module 3 and the flow path switching unit 4 are sequentially arranged along the air flow direction.

  The casing 1 can be designed in various shapes depending on the installation location. However, as described above, for example, the casing 1 is installed in a ceiling, and thus, the casing 1 is formed in a flat, substantially rectangular parallelepiped box shape designed to have a thin thickness portion corresponding to the height. It is formed. The casing 1 may be formed with a curved outer shape in the thickness direction, the length direction, and the width direction according to the ceiling shape.

  At the downstream end of the air flow of the casing 1, a humidified air outlet 8 for blowing humidified air and a dehumidified air outlet 9 for blowing dehumidified air are provided side by side in the width direction. The humidified air outlet 8 and the dehumidified air outlet 9 are defined by a partition wall (second partition portion) 11 formed integrally with the casing 1, and in this embodiment, the humidified air outlet 9 is provided with respect to the dehumidified air outlet 9. 8 is formed small. In addition, in order to reduce pressure loss, these blower outlets 8 and 9 may be provided with the cross-sectional shape comprised by a curve.

  Next, the adsorbent module 3 of this embodiment will be described with reference to FIG. FIG. 2 is a perspective view showing an example of the adsorbent module 3 in FIG. The adsorbent module 3 does not require a driving mechanism and uses a high thermal efficiency. That is, as shown in FIG. 2, the adsorbent module 3 grips the adsorbent with the Peltier element 30 having a pair of plate surfaces 30a and 30b that respectively function as a heat absorbing portion and a heat radiating portion, and a fin 33 that can be ventilated. And a first adsorbing element 31A and a second adsorbing element 31B arranged directly on the plate surfaces 30a and 30b of the Peltier element 30, respectively.

  As is well known, the Peltier element 30 is an element that uses the Peltier effect, and is an electronic component that is used as a cooling device for electronic devices such as computers. That is, in the Peltier device, a large number of P-type semiconductors and N-type semiconductors are arranged between two types of metal plates, one metal plate forms an NP junction, and the other metal plate forms a PN junction. In such an element, heat transfer occurs by passing a current through the PN junction, and an endothermic phenomenon occurs in one metal plate, and a heat dissipation phenomenon occurs in the other metal plate.

  The adsorbing elements 31A and 31B are made of a metal having good thermal conductivity such as aluminum, and a large number of fins 33 are provided on the substrate 32 in contact with the plate surfaces 30a and 30 of the Peltier element 30 along the ventilation direction. It is set. The adsorbing elements 31A and 31B are each configured by gripping an adsorbing material on the fin 33 that can be ventilated, and are usually formed in a flat box shape in order to be accommodated in the thin casing 1 described above.

  As the fin 33, various structures can be used as long as the fin 33 can be reduced in size and a large adsorption area can be secured and a larger amount of powdery adsorbent can be held. As the structure of the fin, for example, a so-called corrugated type in which the opening shape of the ventilation cell is formed in a substantially triangular shape by a corrugated sheet, a honeycomb type in which the opening shape of the ventilation cell is formed in a substantially hexagonal shape, A lattice-type structure in which the opening shape of the ventilation cell is formed in a square shape may be used.

  In the present embodiment, the adsorbent satisfying the characteristics is preferably zeolite that can easily adsorb water vapor at a low humidity and can easily desorb at a low temperature. In the adsorbent module 3, the adsorbing elements 31 </ b> A and 31 </ b> B are heated and cooled by the Peltier element 30 with no air layer or other heat insulating elements interposed between the plate surfaces 30 a and 30 b of the Peltier element 30. May be disposed so as to be transmitted by heat conduction, and may be disposed through a heat conductive material such as silver paste or heat transfer grease.

  In addition, the adsorbent module 3 may be formed in a flat rectangular parallelepiped as shown in FIG. 2, or may be formed in a shape having a curved surface according to the structure of the casing. As shown in FIG. 1, the adsorbent module 3 is disposed in the casing 1 so that air sent by the blower 2 can pass through the adsorbing elements 31 </ b> A and 31 </ b> B. In the present embodiment, in order to reduce the size of the adsorbent module 3, for example, a flat Peltier element 30 in which the plate surfaces 30 a and 30 b respectively function as a heat absorbing portion and a heat radiating portion is used.

  Further, in each of the adsorption elements 31A and 31B, the ventilation area (total opening area orthogonal to the ventilation direction of the fins 33) is the minimum cross-sectional area of the upstream and downstream flow paths of the adsorbent module 3. It is preferably set to be equal to or greater than (opening area perpendicular to the ventilation direction). When the ventilation areas of the adsorption elements 31A and 31B are set as described above, the flow velocity of air passing through the adsorption elements 31A and 31B can be reduced, and the adsorption and desorption functions can be further enhanced. .

  Furthermore, each adsorption element 31A, 31B may be formed so that the area of the cross section orthogonal to the internal ventilation direction is larger than the opening area of the air inlet and outlet. As described above, when the cross-sectional area inside the adsorption elements 31A and 31B is increased, the pressure loss during ventilation in the side edge portion on the width direction side (left and right in plan view) near the entrance / exit can be reduced. The adsorption / desorption efficiency in each adsorption element 31A, 31B can be increased.

  In the dehumidifying / humidifying device of this embodiment, in the adsorbent module 3 described above, the adsorption operation and desorption operation of each adsorption element 31A, 31B are alternately switched every 5 to 10 minutes. Therefore, in this embodiment, since the humidified air is continuously blown out from the humidified air outlet 8 and the dehumidified air is continuously blown out from the dehumidified air outlet 9, as shown in FIG. The flow path switching unit 4 is disposed on the downstream side.

  As a mechanism for switching the air flow path, a mechanism that moves two flexible pipes to change the connection destination, two shutters that are operated synchronously by a link or the like are alternately opened and closed, and the connection destination is changed. A mechanism to change can also be used. However, from the viewpoint of simplifying the device configuration and reducing the size, as shown as an example in FIG. 1, the flow path switching unit 4 is directed to each air by a flow path switching door 6 that is rotated by an actuator 7. Is to be switched.

  First, as shown in FIG. 1B, the flow path switching unit 4 causes the first adsorption element 31 </ b> A to be moved by a partition plate (first partition unit) 40 disposed immediately downstream of the adsorbent module 3. It is partitioned into a first inflow space 3A into which the air that has passed in and a second inflow space 3B into which the air that has passed through the second adsorption element 31B flows.

  Further, as shown in FIG. 1A, the downstream side of the partition plate 40 flows out to the humidified air flow passage 80 flowing out to the humidified air outlet 8 and to the dehumidified air outlet 9 by the partition wall 11 integrally formed with the casing 1. The dehumidifying air flow passage 90 is partitioned, and the cross-sectional area of the humidifying air flow passage 80 is smaller than the dehumidifying air flow passage 90. The flow path switching door 6 is disposed between the partition plate 40 and the partition wall 11, and one shaft (rotating shaft) 60 passes through the entire width of the casing 1.

  Specifically, the configuration and operation of the flow path switching unit 4 of the present embodiment will be described with reference to FIGS. FIGS. 3A and 3B show an example of the flow path switching door 6 in FIG. 1, in which FIG. 3A is a perspective view, and FIG. 3B is a view as viewed in FIG. As shown in FIG. 3, the flow path switching door 6 connects the humidified air flow passage 80 and one of the first inflow space 3A and the second inflow space 3B to the shaft 60 and closes the other. The humidifying side doors 61a and 61b, which can reverse the state of the air, the dehumidifying air flow passage 90 and one of the first inflow space 3A and the second inflow space 3B are connected to each other and the other is closed, and this communication / blocking state is reversed. The dehumidifying side doors 62a and 62b that can be used are integrally provided.

  In addition, the door area of the humidification side doors 61a and 61b and the dehumidification side doors 62a and 62b is substantially proportional to the passage cross-sectional area of both the flow paths 80 and 90, and the dehumidification side doors 62a and 62b are large, and the humidification side door 61a. 61b is smaller. A lever plate 63 for rotating the flow path switching door 6 is provided on one end side of the shaft 60, and the casing 1 is divided into two vertically so that the lever plate 63 comes out of the casing 1. It is made to be pinched by. An actuator 7 that is connected to the end side of the lever plate 63 and that switches and drives the flow path switching door 6 is disposed on the outer surface of the casing 1. The details of the actuator 7 will be described later.

  Moreover, in this embodiment, in order to reduce the rotation range of the flow path switching door 6 (about 60 degrees in this embodiment), two humidifying doors and two dehumidifying doors are formed. One humidifying door and one dehumidifying door are formed at opposing positions (for example, 61a and 62a or 61b and 62b in FIG. 3B), and the positions where the respective doors are closed are switched 180. It is good also as a structure rotated degree. Although the rotation range of the door becomes large, the shape of the door can be simplified.

  4 and 5 are diagrams for explaining the mechanism of channel switching, wherein (a) is a sectional view taken along the line aa in FIG. 1, and (b) is a sectional view taken along the line bb in FIG. . FIG. 4 shows a state of the first flow path switching position. By rotating the flow path switching door 6 to one side (the state of FIG. 4), the first inflow space 3A and the dehumidified air flow passage 90 are connected. The second inflow space 3B and the humidified air flow passage 80 are communicated with each other.

  That is, on the side of the humidified air outlet 8 in FIG. 4A, the humidified air that has flowed out into the second inflow space 3B flows out into the humidified air outlet 8 as it is, and the dehumidified air that has flowed out into the first inflow space 3A Since the flow path to the outlet 8 is closed by the humidifying side door 61b, the flow flows in the first inflow space 3A toward the front side of the drawing, moves to the dehumidifying air flow passage 90 side, and flows out from there to the dehumidifying air outlet 9. become.

  Similarly, on the side of the dehumidifying air outlet 9 in FIG. 4B, the dehumidifying air flowing out into the first inflow space 3A flows out into the dehumidifying air outlet 9 as it is, and the humidified air flowing out into the second inflow space 3B is dehumidified. Since the flow path to the air outlet 9 is closed by the dehumidifying side door 62b, it flows in the second inflow space 3B to the back side of the page, moves to the humidified air flow passage 80 side, and flows out from there to the humidified air outlet 8. It becomes like this.

  FIG. 5 shows the state of the second flow path switching position. By rotating the flow path switching door 6 to the other side (the state of FIG. 5), the first inflow space 3A and the humidified air flow passage 80 are connected. The second inflow space 3 </ b> B and the dehumidifying air flow passage 90 communicate with each other. That is, on the side of the humidified air outlet 8 in FIG. 5A, the humidified air that has flowed out to the first inflow space 3A directly flows out to the humidified air outlet 8, and the dehumidified air that has flowed out to the second inflow space 3B Since the flow path to the outlet 8 is blocked by the humidifying side door 61a, the flow flows in the second inflow space 3B toward the front side of the drawing, moves to the dehumidifying air flow passage 90 side, and flows out from there to the dehumidifying air outlet 9. become.

  Similarly, on the side of the dehumidifying air outlet 9 in FIG. 5B, the dehumidifying air flowing out into the second inflow space 3B directly flows out into the dehumidifying air outlet 9, and the humidified air flowing out into the first inflow space 3A is dehumidified. Since the flow path to the air outlet 9 is closed by the dehumidifying side door 62a, it flows in the first inflow space 3A to the back side of the paper surface, moves to the humidified air flow passage 80 side, and flows out from there to the humidified air outlet 8 It becomes like this.

  Next, the configuration and operation of the actuator 7 that drives the flow path switching door 6 will be described with reference to FIG. FIG. 6 is a schematic diagram of the actuator 7A and the electric circuit in the first embodiment of the present invention. In this embodiment, the shape memory alloy part 70 which returns to the original shape when heated even if deformed is incorporated in the actuator 7A. Specifically, as shown in FIG. 6, the shape memory alloy portion 70 of the actuator 7 </ b> A is a shape memory spring 70 </ b> A that attracts the normal spring 71 to rotate the lever plate 63 of the flow path switching door 6. .

  If the shape memory spring 70A is not heated, the lever plate 63 of the flow path switching door 6 is pulled by the normal spring 71 together with the link part 72 (see FIG. 6), and is on one side (position b in FIG. 6). And the shape memory spring 70A is stretched. Further, if the shape memory spring 70A is heated, the lever plate 63 of the flow path switching door 6 is pulled together with the link component 72 by the force that returns the shape memory spring 70A from the stretched state to the original shape, and the other side (FIG. 6), the normal spring 71 can be extended.

  Further, in the present embodiment, as shown in FIG. 6, the shape memory spring 70 </ b> A and the Peltier element 30 are connected in parallel, and a DC voltage is applied from the DC power supply 5 so that the polarity can be switched, and the shape memory spring A rectifier diode (element) 50 is connected in series to 70A so that a current flows only in one direction.

  The rectifier diode 50 allows a current to flow through the shape memory spring 70A only when it has any polarity. Therefore, when the current flows, the shape memory spring 70A generates heat and returns to its original shape. For this reason, only by switching the polarity of the DC voltage applied in parallel to the shape memory spring 70A of the actuator 7A and the Peltier element 30, switching between the heat absorption side / heat radiation side of the Peltier element 30 and switching the flow path switching door 6 Are performed in synchronization with each other, and a dedicated control circuit for the actuator 7A can be dispensed with.

  That is, in the adsorbent module 3, the current flowing through the Peltier element 30 is reversed at a time interval according to the adsorption / desorption operation of the adsorption elements 31 </ b> A and 31 </ b> B, for example, at intervals of 5 to 10 minutes. The heat absorption function and the heat dissipation function in 30a and 30b are interchanged.

  Further, in the flow path switching unit 4, after the current direction of the Peltier element 30 and the shape memory spring 70 </ b> A is reversed, the flow path switching door 6 is rotated by the heat or heat dissipation of the shape memory spring 70 </ b> A, One of the destinations of the air processed by the adsorbent module 3 is switched from the humidified air outlet 8 to the dehumidified air outlet 9, and the other is switched from the dehumidified air outlet 9 to the humidified air outlet 8.

  The timing at which the flow path switching door 6 operates is similar to the timing at which the temperatures of the plate surfaces 30a and 30b of the Peltier element 30 are reversed up and down after the current of the Peltier element 30 is reversed. As described above, the flow path switching door 6 is operated for a while after the current reversal and the destination is switched, so that dehumidified air and humidified air can be generated more efficiently.

  Although not shown, the dehumidifying / humidifying device of the present embodiment is provided with a control device for controlling the blower 2 and controlling the current of the Peltier element 30 in the adsorbent module 3. Further, the humidified air outlet 8 is connected to a face outlet duct (not shown) directed to the occupant side, and the dehumidified air outlet 9 is connected to a defroster outlet duct directed to the front window glass of the vehicle.

  The dehumidifying / humidifying device of the present embodiment operates as follows, for example, in winter when the outside air is dry. In other words, the blower 2 sucks air in the passenger compartment and sends it to the first adsorption element 31A and the second adsorption element 31B of the adsorbent module 3, respectively. In the adsorbent module 3, for example, one plate surface 30a of the Peltier element 30 functions as a heat absorbing portion, and the other plate surface 30b functions as a heat radiating portion.

  For this reason, the first adsorbing element 31A is cooled by the plate surface 30a, the adsorbing operation of the adsorbent held by the fin 33 proceeds, and the water vapor in the air passing through the fin 33 is adsorbed. On the other hand, the second adsorption element 31B is heated by the plate surface 30b of the Peltier element 30, and the desorption operation of the adsorbent held by the fins 33 of the second adsorption element 31B proceeds and passes through the fins 33. Releases water vapor into the air.

  The air that has been dehumidified through the first adsorbing element 31A of the adsorbent module 3 flows out into the first inflow space 3A, and the air that has been humidified through the second adsorbing element 31B into the second inflow space 3B. The air that has flowed out and is humidified by the flow path switching door 6 is directed to the humidified air flow passage 80 and blown out from the humidified air outlet 8, and the dehumidified air is directed to the dehumidified air flow passage 90 and blown out from the dehumidified air outlet 9 Is done.

  In the adsorbent module 3, when the adsorption operation and the desorption operation are performed for a predetermined time, the voltage applied to the Peltier element 30 and the shape memory spring 70A is reversed, and the heat absorption part and the heat dissipation part of the Peltier element 30 are switched. In other words, the plate surface 30a of the Peltier element 30 functions as a heat dissipation portion, and the plate surface 30b functions as a heat absorption portion. Then, by switching the functions of the plate surfaces 30a and 30b of the Peltier element 30, the adsorption / desorption operation of the adsorbent is reversed in each of the adsorption elements 31A and 31B.

  That is, the first adsorbing element 31A desorbs the water vapor that has been adsorbed until the fin 33 that has been cooled is heated. On the other hand, said 2nd adsorption | suction element 31B starts adsorption | suction of water vapor | steam, when the fin 33 which was heated is cooled. As a result, the first adsorbing element 31A releases and vaporizes water vapor into the air passing therethrough, and the second adsorbing element 31B adsorbs and dehumidifies the water vapor in the air passing therethrough. Thereby, the humidified air flows out to the second inflow space 3B, and the dehumidified air flows out to the first inflow space 3A.

  In addition, when the voltage is reversed in the DC power source 5, the shape memory spring 70A of the actuator 7A of the flow path switching door 6 generates heat or dissipates, so that the flow path switching door 6 rotates from one position to the other position and flows. The road is switched. That is, the flow path switching door 6 is switched from, for example, the state shown in FIG. 4 to the state shown in FIG.

  For this reason, the air humidified through the first adsorbing element 31A of the adsorbent module 3 flows out into the first inflow space 3A, and the air dehumidified through the second adsorbing element 31B is in the second inflow. The air that has flowed out into the space 3B and is humidified by the flow path switching door 6 is directed to the humidified air flow passage 80 and blown out from the humidified air outlet 8, and the dehumidified air is directed to the dehumidified air flow passage 90 and dehumidified air blown It blows out from the exit 9.

  In the dehumidifying / humidifying device of the present embodiment, the adsorption / desorption operation is reversed at a certain timing in the adsorbent module 3 as described above, and the dehumidified air and the humidified air are blown out accordingly. The flow path is switched by the flow path switching door 6. Thereby, the dehumidified air can be continuously blown out from the dehumidified air outlet 9, and the humidified air can be continuously blown out from the humidified air outlet 8. Then, the dehumidified air is used for anti-fogging of the window glass, and the humidified air is used for improving comfort.

  As described above, in the dehumidifying / humidifying device of the present embodiment, each of the plate surfaces 30a and 30b functioning as a heat absorbing part and a heat radiating part of the Peltier element 30 using the pair of fixed adsorbing elements 31A and 31B holding the adsorbent. The adsorbent module 3 is configured by arranging each directly. In the adsorbent module 3, the heat absorption part and the heat dissipation part are functionally switched by reversing the current flowing to the Peltier element 30, and the adsorption operation and the desorption operation are reversed by switching the cooling and heating for the adsorption elements 31A and 31B. The flow path switching door 6 is used to switch the destination of the air that has passed through the first adsorption element 31A and the air that has passed through the second adsorption element 31B according to the reversal of the adsorption operation and the desorption operation.

  Therefore, in the dehumidifying / humidifying device of the present embodiment, it is not necessary to provide a rotation drive unit as in the conventional adsorption rotor system, and the adsorption elements 31A and 31B are directly arranged on the Peltier element 30. Since the thermal conductivity between the Peltier element 30 and the adsorption element when heating / cooling 31A and 31B is high, the adsorption elements 31A and 31B and the Peltier element 30 can be further downsized. As a result, the apparatus configuration can be simplified and the entire apparatus can be further reduced in size.

  Next, the features and effects of this embodiment will be described. First, the flow path switching door 6 is driven by an actuator 7A using a shape memory alloy that returns to its original shape when heated even if it is deformed. According to this, the shape memory alloy portion 70 of the actuator 7 </ b> A is a shape memory spring 70 </ b> A that attracts the normal spring 71 to rotate the flow path switching door 6. In this case, if the shape memory spring 70A is not heated, the flow path switching door 6 is rotated to one side by being pulled by the normal spring 71 and the shape memory spring 70A is stretched.

  In addition, if the shape memory spring 70A is heated, the flow switching door 6 is rotated to the other side by the force of returning from the stretched state to the original shape, and the normal spring 71 is stretched. It becomes. Thus, since the state of the flow path switching door 6 can be switched depending on whether or not the shape memory alloy part 70 of the actuator 7A is heated, the configuration of the heat removal apparatus can be simplified, and the heat removal apparatus can be used. It can be downsized.

  Further, the shape memory alloy part 70 of the actuator 7A and the Peltier element 30 are connected in parallel so that the polarity of the DC voltage applied to them can be switched, and the current is only applied to the shape memory alloy part 70 in one direction. A flowing rectifier diode 50 is connected in series. According to this, since the current flows only to the shape memory spring 70A by the rectifier diode 50 at any polarity, when the current flows, it generates heat and returns to its original shape, and easily deforms when the polarity is reversed. .

  Therefore, switching the heat absorption side / heat radiation side of the Peltier element 30 and switching the flow path switching door 6 simply by switching the polarity of the DC voltage applied in parallel to the shape memory alloy part 70 of the actuator 7A and the Peltier element 30. Are performed in synchronization with each other, and a dedicated control circuit for the actuator 7A becomes unnecessary.

  In addition, the flow path switching unit 4 includes a first inflow space 3A into which air that has passed through the first adsorbing element 31A flows in by a partition plate 40 disposed immediately downstream of the adsorbent module 3, and a second adsorption. It is partitioned into a second inflow space 3B into which air that has passed through the element 31B flows, and the downstream side of the partition plate 40 flows out to the humidified air flow passage 80 that flows out to the humidified air outlet 8 and the dehumidified air outlet 9 through the partition wall 11. The dehumidifying air flow passage 90 is partitioned.

  The flow path switching door 6 is disposed between the partition plate 40 and the partition wall 11 and communicates the humidified air flow passage 80 with one of the first inflow space 3A and the second inflow space 3B and closes the other. Then, the humidifying side doors 61a and 61b capable of reversing the communication / blocking state, the dehumidified air flow passage 90 and one of the first inflow space 3A and the second inflow space 3B are connected to each other, and the other is closed. / The dehumidifying side doors 62a and 62b that can reverse the closed state are provided on one shaft 60.

  Then, by turning the flow path switching door 6 to one side, the second inflow space 3B and the dehumidified air flow path 90 communicate with each other while the first inflow space 3A and the humidified air flow path 80 communicate with each other. By rotating to the other, the second inflow space 3B and the humidified air flow passage 80 are communicated with each other while the first inflow space 3A and the dehumidified air flow passage 90 are in communication with each other.

  According to this, if the space for allowing the flow path switching door 6 to rotate just downstream of the adsorbent module 3 is secured, the flow path switching section 4 can be configured, and the configuration of the heat removal apparatus can be simplified. In addition, the heat removal and heating device can be reduced in size. Further, the humidified air outlet 8 is made smaller than the dehumidified air outlet 9. According to this, the relative humidity of the warming air can be increased by reducing the warming air amount with respect to the dehumidifying air amount.

(Modification)
Next, a modification of the first embodiment will be described. FIG. 7 is a schematic diagram of an actuator 7B according to a modification of the first embodiment. In the present modification and the second embodiment described later, the same components as those in the first embodiment described above are denoted by the same reference numerals, description thereof is omitted, and different configurations and features will be described.

  The actuator 7 </ b> B of this modification is arranged and used so that the straight wire 70 </ b> B is folded back as the shape memory alloy part 70. As described above, a straight wire 70B may be used for the shape memory alloy portion 70 of the actuator 7, and the same operation as that in the first embodiment is performed by heating / dissipating / dissipating by ON / OFF of energization. Can do.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. FIG. 8 is a plan sectional view including the flow path switching unit 4 in the second embodiment of the present invention, and FIG. 9 is a sectional view taken along the line IX-IX in FIG. Features different from the above-described embodiment will be described. In the present embodiment, the same components as those in the first embodiment described above are denoted by the same reference numerals, description thereof is omitted, and different configurations and features will be described.

  In the present embodiment, the shape memory spring 70A of the actuator 7A that drives the flow path switching door 6 is heated, and any one of the adsorption elements 31A and 31B (part of the adsorption element 31A in FIG. 9) is replaced with the casing 1. The cold / heat of one of the plate surfaces 30a, 30b (in FIG. 9, the cold / heat of the plate surface 30a) is transferred to the shape memory spring 70A via a part 34 of the adsorption element 31A. It is configured to do.

  In this embodiment, a part of the substrate 32 of the adsorption element 31A that is in contact with the plate surface 30a of the Peltier element 30 is extended to form a heating / cooling portion 34 surrounding the shape memory spring 70A of the actuator 7A. It is. According to this, the cold / heat on either side of the Peltier element 30 transfers heat to the shape memory alloy part 70 of the actuator 7 via the part 34 of the adsorption elements 31A, 31B, and the shape memory alloy part 70 is By heating / cooling, the flow path switching door 6 can be switched synchronously by switching the heat absorption side / heat radiation side of the Peltier element 30 without electrical control.

(Other embodiments)
The present invention is not limited to the above-described embodiments, and can be modified or expanded as follows. In the above-described embodiment, the heat removal apparatus is mounted on a vehicle and used. However, it may be used in a normal room, and a predetermined space (for example, a bedroom) in a room (for example, a bedroom) that requires humidification. Further, humidified air may be blown out around the bedside of the bedding, and the dehumidified air may be blown out to a space (for example, a window or wall where condensation is likely to occur) that requires dehumidification.

  Although not shown in the drawings, in the dehumidifying / humidifying device of this embodiment, in order to blow out more comfortable air to the occupant side, dehumidification is performed on the downstream side of the adsorbent module 3 by the first adsorbing element 31A of the adsorbent module 3. A heat exchanger that performs heat exchange between the air (or humidified) and the air humidified (or dehumidified) by the second adsorption element 31B may be arranged.

  For example, the humidified air blown out from the humidified air outlet 8 to the occupant side is air containing moisture desorbed in each adsorption element 31A, 31B, but more than necessary due to the heat of the Peltier element 30 at the time of heat desorption. In some cases, the temperature may rise. On the other hand, the dehumidified air blown out from the dehumidified air outlet 9 toward the window glass is cooled by the Peltier element 30. Therefore, in the present embodiment, a heat exchanger may be disposed on the downstream side of the adsorbent module 3, and the temperature of the humidified air may be lowered by the heat exchanger to increase the temperature of the dehumidified air.

  The heat exchanger includes a block-like sensible heat exchanger made of a metal having high thermal conductivity such as aluminum and having a number of fins on the surface, and a plurality of parallel plates made of the same metal as described above. In addition, various heat exchangers such as a sensible heat exchanger such as an orthogonal heat exchanger in which high temperature air and low temperature air are allowed to flow adjacent to each other between adjacent flat plates can be used.

  Said heat exchanger is arrange | positioned ranging over the flow path to the humidification air blower outlet 8, and the flow path to the dehumidification wind blower outlet 9. FIG. When the above heat exchanger is arranged, heat can be exchanged between the humidified air with a high temperature and the dehumidified air with a low temperature. For example, in winter, the air is humidified and has a moderately lowered temperature. Can be blown out to the passenger side.

  Furthermore, the arrangement position of the heat exchanger is preferably downstream of the flow path switching door 6. When the heat exchanger is arranged on the downstream side of the flow path switching door 6, compared with the case where it is disposed between the adsorbent module 3 and the flow path switching door 6, the high-temperature air and the low-temperature air in the heat exchanger Since there is no change in the flow path and there is no heat loss in the heat exchanger itself, heat can be exchanged efficiently, and the temperature of the humidified air blown out to the passenger can be lowered.

  In this embodiment, in order to lower the temperature of the humidified air blown from the adsorbent module 3 and increase the temperature of the dehumidified air, although not shown, heating using a Peltier element on the downstream side of the adsorbent module 3 A cooler may be arranged. The heating / cooling device includes a Peltier element having a pair of plate surfaces each functioning as a heat absorbing portion and a heat radiating portion, a heat exchange fin that can be ventilated, and is disposed on each plate surface of the Peltier element. The heat exchange element and the second heat exchange element.

  As the structure of each fin of the first heat exchange element and the second heat exchange element, a structure such as a corrugated type, a honeycomb type, or a lattice type can be used as in the adsorbent module 3. The heating / cooling device is positioned downstream of the flow path switching door 6 or between the adsorbent module 3 and the flow path switching door 6. Although the thing of various structures can be used as the flow-path switching door 6, the apparatus similar to the above-mentioned apparatus shown in FIG. 1, for example is used.

  And when arrange | positioning a heating / cooling device in the downstream of the flow-path switching door 6, the flow-path switching door 6 is arrange | positioned in the reverse direction to the case of FIG. Humidified air and dehumidified air can be introduced into the downstream heating / cooling device by distributing to the left and right according to (not shown). In addition, when arrange | positioning in this way, since there is little temperature change in a heating cooler, a heat loss can be made small.

  The dehumidifying / humidifying device of the present embodiment switches the current of the Peltier element in synchronization with the aforementioned switching operation of the adsorbent module 3 in the above-described heating / cooling device, and in the first heat exchange element and the second heat exchange element By switching between heating and cooling, the temperature of the humidified air sent out from the adsorbent module 3 can be reliably increased, and the temperature of the dehumidified air can be reliably increased. Moreover, the temperature of humidified air and dehumidified air can be adjusted by controlling the electric current of a Peltier device as needed.

  Note that the dehumidifying / humidifying device of the present embodiment can also blow out the dehumidified air from the humidified air outlet 8 to the occupant side by switching the operation setting of the flow path switching door 6, for example, in summer. Further, a deodorizing filter may be disposed on the upstream side or the downstream side of the adsorbent module 3 in order to capture odor components in the passenger compartment.

The structure outline | summary of the dehumidification / humidification apparatus in 1st Embodiment of this invention is shown, (a) is a top view, (b) is side sectional drawing. It is a perspective view which shows an example of the adsorbent module 3 in FIG. An example of the flow path switching door 6 in FIG. 1 is shown, (a) is a perspective view, and (b) is a view seen from b in (a). It is a figure explaining the mechanism of channel switching, and shows the state of the 1st channel switching position, (a) is aa sectional view in Drawing 1, and (b) is a bb section in Drawing 1. FIG. It is a figure explaining the mechanism of channel switching, and shows the state of the 2nd channel switching position, (a) is aa sectional view in Drawing 1, (b) is a bb section in Drawing 1. FIG. It is a schematic diagram of an actuator 7A and an electric circuit in the first embodiment of the present invention. It is a mimetic diagram of actuator 7B in a modification of a 1st embodiment. It is a plane sectional view containing channel change part 4 in a 2nd embodiment of the present invention. It is IX-IX sectional drawing in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Casing 2 ... Blower (blower means)
DESCRIPTION OF SYMBOLS 3 ... Adsorbent module 3A ... 1st inflow space 3B ... 2nd inflow space 4 ... Channel switching part 6 ... Channel switching door 7 ... Actuator 8 ... Humidification wind blower outlet 9 ... Dehumidification wind blower outlet 11 ... Partition wall (2nd partition) Part)
DESCRIPTION OF SYMBOLS 30 ... Peltier element 30a, 30b ... Plate surface 31A ... 1st adsorption | suction element 31B ... 2nd adsorption | suction element 33 ... Fin 34 ... Part of adsorption | suction element 40 ... Partition plate (1st partition part)
50 ... Rectifier diode (element)
60 ... Shaft part (rotating shaft)
61a, 61b ... Humidification side door 62a, 62b ... Dehumidification side door 70 ... Shape memory alloy part 80 ... Humidification air flow passage 90 ... Dehumidification air flow passage

Claims (5)

It is a dehumidifying / humidifying device that takes in air and blows it out as dehumidified air and humidified air,
In the casing (1) as an air flow passage, a blowing means (2), an adsorbent module (3), and a flow path switching unit (4) are sequentially arranged along the air flow direction, and the casing (1) In the most downstream part, a humidified air outlet (8) for blowing out the humidified air and a dehumidified air outlet (9) for blowing out the dehumidified air are provided,
The adsorbent module (3) includes an adsorbent on the surface of the Peltier element (30) having a pair of plate surfaces (30a, 30b) each functioning as a heat absorbing portion and a heat radiating portion, and a fin (33) that can be ventilated. Air that is held by the first adsorbing element (31A) and the second adsorbing element (31B) that are gripped and arranged on each of the plate surfaces (30a, 30b), and is supplied by the blowing means (2) Is disposed in the casing (1) so as to be able to pass through the adsorption elements (31A, 31B),
The flow path switching unit (4) includes the air that has passed through the first adsorption element (31A) and the second adsorption element (31B) with respect to the humidified air outlet (8) and the dehumidified air outlet (9). ) And the air passing through can be separately distributed, and the distribution destination can be switched by the flow path switching door (6),
The current flowing through the Peltier element (30) is reversed to replace the heat absorption part and the heat dissipation part of the Peltier element (30), and the flow path switching part (4) switches the flow path according to the reversal of the current. In the dehumidifying / humidifying device configured to switch the distribution destination of each air by the door (6),
The dehumidifying / humidifying device, wherein the flow path switching door (6) is driven by an actuator (7) using a shape memory alloy that returns to its original shape when heated even if it is deformed.   The shape memory alloy part (70) of the actuator (7) and the Peltier element (30) are connected in parallel to apply a DC voltage so that the polarity can be switched, and to the shape memory alloy part (70). 2. The dehumidifying / humidifying device according to claim 1, wherein elements (50) through which current flows only in one direction are connected in series.   A part (34) of the adsorption element (31A, 31B) is extended to the outside of the casing (1), and the cold / heat of the plate surfaces (30a, 30b) is one of the adsorption elements (31A, 31B). The dehumidifying / humidifying device according to claim 1, wherein the dehumidifying / humidifying device is configured to transfer heat to the shape memory alloy part (70) through a part (34). In the flow path switching unit (4), the air that has passed through the first adsorbing element (31A) flows into the flow path switching unit (4) by the first partition unit (40) disposed immediately downstream of the adsorbent module (3). Partitioned into a first inflow space (3A) and a second inflow space (3B) into which air that has passed through the second adsorption element (31B) flows;
The downstream side of the first partition part (40) is a humidified air flow passage (80) that flows out to the humidified air outlet (8) by the second partition part (11), and a dehumidifier that flows out to the dehumidified air outlet (9). Divided into wind passages (90),
The flow path switching door (6) is disposed between the first partition portion (40) and the second partition portion (11), and the humidified air flow passage (80) and the first inflow space (3A). ) And the second inflow space (3B) to communicate with each other and close the other, and the humidifying side doors (61a, 61b) capable of reversing the state of communication / blocking,
A dehumidifying side door capable of communicating the dehumidifying air flow passage (90) with one of the first inflow space (3A) and the second inflow space (3B) and closing the other, and reversing the state of communication / blocking. (62a, 62b) are provided on one rotating shaft (60),
By rotating the flow path switching door (6) to the first flow path switching position, the first inflow space (3A) and the humidified air flow passage (80) communicate with each other while the second inflow space ( 3B) and the dehumidifying airflow passageway (90) communicate with each other,
By rotating the flow path switching door (6) to the second flow path switching position, the first inflow space (3A) and the dehumidified air flow passage (90) communicate with each other while the second inflow space ( 3. The dehumidifying / humidifying device according to claim 1, wherein 3 </ b> B) communicates with the humidified air flow passage (80).   The dehumidifying / humidifying device according to any one of claims 1 to 4, wherein the humidifying air outlet (8) is formed smaller than the dehumidifying air outlet (9).

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