JP2012197992A - Air conditioning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To uniformly and properly heat and cool an air-conditioned room.SOLUTION: In this air conditioning device in which cold air CA generated in a heat exchanging section 2 is supplied to the air-conditioned room while being naturally descended along the heat exchanging section 2, a lower air port 16A is formed at a lower section of a device body 3 for discharging the auxiliary air A for cooling toward the inside of the air-conditioned room while applying it to the descending cold air CA from the heat exchanging section 2. Furthermore, the hot air HA generated in the heat exchanging section 2 is naturally ascended along the heat exchanging section 2 to be supplied to the air-conditioned room. An upper air port 16B is formed at an upper section of the device body for discharging the auxiliary air A' for heating toward the inside of the air-conditioned room while applying it to the ascending hot air HA from the heat exchanging section 2.

Description

The present invention relates to an air conditioner, and in particular, a state in which a heat exchanging portion that allows a low-temperature heat medium to exchange heat with room air in an air-conditioning target room to pass therethrough is provided, and the heat exchanging part is exposed in a room in the air-conditioning target room An air conditioner that is arranged to be supplied to the air conditioning target room by naturally descending the cold air generated in the heat exchanging part in a state along the heat exchanging part.
In addition, a heat exchanging part that allows a high-temperature heat medium to exchange heat with the room air in the air-conditioning target room to pass therethrough is provided, and the heat exchanging part is arranged in a state of being exposed in the room of the air-conditioning target room in a vertical posture. By equipping, heat is radiated from the heat exchanging part toward the room of the air conditioning target room, and the warm air generated in the heat exchanging part is naturally raised along the heat exchanging part and supplied to the air conditioning target room It relates to a certain air conditioner.

  Conventionally, in this type of air conditioner, the cold air that naturally descends from the heat exchanging part is simply left to fall naturally due to the specific gravity difference due to the temperature difference with the room air, and the warm air that naturally rises from the heat exchanging part However, it was simply raised naturally due to the specific gravity difference due to the temperature difference from the room air (see Patent Document 1).

Akira 62-9020

  However, in the conventional apparatus as described above, in the cooling operation in which the cool air is naturally lowered from the heat exchange section, the cool air is simply lowered naturally, so that the cool air is accumulated in the lower layer of the air-conditioned room. In a situation where the cooling load is small, there is a problem that the lower layer part of the air-conditioning target room is too cold and the occupants (especially under the waist) tend to feel cold.

  In addition, in the heating operation in which the warm air naturally rises from the heat exchange unit, the warm air is simply raised naturally, so that the warm air is accumulated in the upper layer of the air-conditioning target room. However, there is a problem that it is difficult to provide sufficient heating effect to the occupants in the middle and lower layers of the air-conditioned room.

  In view of these circumstances, the main problem of the present invention is to effectively solve the above problems by adopting a rational device configuration.

The first characteristic configuration of the present invention relates to an air conditioner,
A heat exchanging part that allows a low-temperature heat medium to exchange heat with the indoor air of the air-conditioning target room is provided inside,
By installing this heat exchange unit in a state of being exposed in the air-conditioning target room in a vertical posture and installing it in the body, the cold air generated in the heat exchange unit is naturally lowered in a state along the heat exchange unit for air conditioning. An air conditioner configured to supply to a target room,
A lower air port is formed in the lower part of the vessel body for discharging the cooling auxiliary air to the inside of the air-conditioned room in a state of blowing the cooling air from the heat exchanger.
It is equipped with a cooling fan that sucks indoor air around the body and discharges the intake air from the lower air port as the cooling auxiliary air.

  In other words, according to this configuration, the cooling auxiliary air is discharged from the lower air port toward the air-conditioning target room with the cooling air being blown down to the cool air from the heat exchange unit, so that the air discharge causes diffusion. In addition, it effectively suppresses the falling cold air from the heat exchange section from accumulating in the lower layer of the air-conditioning target room and mixes the air in the middle and upper layers in the air-conditioning target room with the lowering cold air from the heat exchange section. Can also promote.

  In addition, the room air sucked from around the body is discharged as air cooling auxiliary air from the lower air port in a state where it is blown against the cold air coming from the heat exchange unit, so the indoor air (cooling auxiliary air) ) Can be effectively mixed to increase the amount of cool air finally supplied to the air-conditioning target room, and the temperature can be increased moderately.

  That is, by these, the temperature deviation in the vertical direction in the air-conditioning target room can be reduced, and the air-conditioning target room can be effectively and uniformly cooled, and the lower part of the air-conditioning target room can be cooled. It is possible to effectively prevent an excessive state.

According to the second feature configuration of the present invention, in the implementation of the first feature configuration,
An upper air port is provided in the upper part of the body, and indoor air is sucked from the upper air port by the cooling fan.

  That is, according to this configuration, the indoor air of the indoor middle layer or the indoor upper layer is sucked by the cooling fan from the upper air port provided in the upper part of the vessel, and the sucked air is discharged from the lower air port. Promote the formation of circulating air convection from the lower layer to the middle / upper layer in the air-conditioning target room by discharging cooling auxiliary air from the lower air port and sucking indoor air from the upper air port As a result, it is possible to more effectively achieve uniform and good cooling of the air-conditioning target room by reducing the temperature deviation in the vertical direction in the air-conditioning target room.

A third characteristic configuration of the present invention relates to an air conditioner,
A heat exchange section is provided that allows a high-temperature heat medium to exchange heat with room air in the air-conditioning target room.
The heat exchanging unit is arranged in a state of being exposed in the air-conditioning target room in a vertical posture and is mounted on the body so that heat is radiated from the heat exchanging part toward the air-conditioning target room and the heat exchange is performed. An air conditioner configured to naturally raise the warm air generated in the section along the heat exchanging section and supply the warm air to the air conditioning target room,
An upper air port is formed in the upper part of the body to discharge the air to the room of the air-conditioning target room while blowing the auxiliary air for heating to the rising warm air from the heat exchange unit,
A heating fan is provided that sucks indoor air around the body and discharges the intake air from the upper air port as the heating auxiliary air.

  In other words, according to this configuration, the heating auxiliary air is discharged from the upper air port to the interior of the air-conditioning target room while being blown against the rising warm air from the heat exchange unit. Effectively inhibits rising warm air from the heat exchange section from accumulating in the upper layer of the air-conditioning target room, and promotes mixing of lower-layer air in the air-conditioning target room and the rising warm air from the heat exchange section can do.

  In addition, room air sucked from around the body is discharged from the upper air port in a state where it is blown against the rising warm air from the heat exchange section as auxiliary heating air, so that the indoor air (heating auxiliary air is heated from the heat exchange section). ) Can be effectively mixed to increase the amount of warm air finally supplied to the air-conditioning target room, and the temperature can be appropriately reduced.

  That is, by these, it is possible to reduce the temperature deviation in the vertical direction in the air-conditioning target room and to effectively provide uniform and good heating to the air-conditioning target room, and also to prevent heat radiation from the heat exchange unit. Together, it is possible to give a sufficient heating effect to the occupants in the middle and lower layers of the air-conditioned room.

The fourth feature configuration of the present invention is the third feature configuration,
A lower air port is provided in the lower part of the body, and indoor air is sucked from the lower air port by the heating fan.

  That is, according to this configuration, the indoor air in the lower layer of the room is sucked by the heating fan from the lower air port provided in the lower part of the container, and the sucked air is discharged from the upper air port. The formation of circulating air convection from the upper layer to the middle / lower layer in the air can be promoted by discharging the auxiliary air for heating from the upper air port and sucking indoor air from the lower air port. Thus, it is possible to more effectively achieve uniform and good heating of the air-conditioning target room by reducing the temperature deviation in the vertical direction in the air-conditioning target room.

A fifth characteristic configuration of the present invention relates to an air conditioner,
A heat exchanging unit that allows a heat medium that exchanges heat with room air in the air-conditioning target room to pass therethrough is provided. It is possible to switch to heating operation that passes
By arranging the heat exchanging unit in a vertically exposed state in the air-conditioning target room and installing it in the body, in cooling operation, the cool air generated in the heat exchanging unit is naturally in a state along the heat exchanging unit. Lower it and supply it to the air-conditioned room,
In the heating operation, heat is radiated from the heat exchange unit toward the room of the air conditioning target room, and warm air generated in the heat exchange unit is naturally raised along the heat exchange unit and supplied to the air conditioning target room. Air conditioner,
In the cooling operation, in the state where the auxiliary air for cooling is blown to the descending cold air from the heat exchange unit, a lower air port that discharges toward the room of the air-conditioning target room is formed in the lower part of the body,
In the heating operation, an upper air outlet that discharges air to the room of the air-conditioning target room while blowing auxiliary air for heating to the rising warm air from the heat exchange unit is formed in the upper part of the body.
A cooling fan that sucks indoor air around the device during cooling operation and discharges the intake air from the lower air port as the cooling auxiliary air, and sucks indoor air around the device during heating operation In addition, a heating fan that discharges the intake air from the upper air port as the heating auxiliary air is provided.

  That is, according to this configuration, the cooling operation or the heating operation can be selectively performed according to the situation, and in the cooling operation, the same effect as the first characteristic configuration described above can be obtained, In the heating operation, the same effect as the third characteristic configuration described above can be obtained.

  That is, in both the cooling operation and the heating operation, uniform and satisfactory air conditioning can be effectively performed on the air-conditioning target room.

A sixth feature configuration of the present invention is the fifth feature configuration,
In the cooling operation, room air is sucked by the cooling fan from the upper air port, and in the heating operation, room air is sucked by the heating fan from the lower air port.

  That is, according to this configuration, the same effect as that of the second feature configuration described above can be obtained in the cooling operation, and the same effect as that of the fourth feature configuration described above can be obtained in the heating operation.

  That is, in both the cooling operation and the heating operation, it is possible to more effectively achieve uniform and favorable cooling and heating for the air-conditioning target room.

The seventh feature configuration of the present invention is the fifth or sixth feature configuration,
Switching means for providing a common fan and switching between a cooling air blowing state in which air is discharged from the lower air port by the common fan and a heating air blowing state in which air is discharged from the upper air port by the common fan. Provided,
By switching by this switching means, in the cooling operation, the common fan is used as the cooling fan and cooling auxiliary air is discharged from the lower air port. In the heating operation, the common fan is used as the heating fan and the upper air port. The auxiliary air for heating is discharged from the air.

  In other words, according to this configuration, since the common fan is used as both a cooling fan and a heating fan, the apparatus cost can be reduced as compared with the case where the cooling fan and the heating fan are separately provided. In addition, since the space required for installing the fan can be reduced, the apparatus can be reduced in size.

The eighth feature configuration of the present invention is the second, fourth or sixth feature configuration,
The container body has a structure in which an inside thereof becomes an air guide path that allows the lower air port and the upper air port to communicate with each other.

  That is, according to this configuration, the indoor air is sucked from the upper air port by the cooling fan and the sucked air is discharged from the lower air port as the cooling auxiliary air, or the indoor air is discharged from the lower air port by the heating fan. Inhalation of air and discharge of the intake air from the upper air port as heating auxiliary air can be performed through the interior of the container in a form that uses the container itself as a duct. Compared with providing a dedicated air duct that communicates between the opening and the upper air opening, the apparatus cost can be reduced and the apparatus can be downsized.

  A ninth feature configuration of the present invention is the cooling fan according to any one of the first, second, fifth to seventh feature configurations, or any of the third, fourth, fifth to seventh feature configurations. A control means for intermittently operating the heating fan is provided.

  In other words, according to this configuration, the discharge of the cooling auxiliary air from the lower air port or the discharge of the heating auxiliary air from the upper air port is intermittently performed. This makes it possible to prevent the air-conditioning target room from being uncomfortable, and in combination with the fact that the air-conditioning target room can be uniformly and satisfactorily air-conditioned, as described above, further enhances the comfort of the air-conditioning target room. Can be increased.

  The tenth characteristic configuration of the present invention is that of the cooling fan in any one of the first, second, fifth to seventh characteristic configurations, or the third, fourth, fifth to seventh characteristic configurations. In any of the above, there is provided control means for adjusting the air flow rate of the heating fan according to the adjustment command from the user or the measurement room temperature of the air-conditioning target room.

  That is, the air flow rate of the cooling fan or the air flow rate of the heating fan, that is, the discharge air amount of the cooling auxiliary air from the lower air port or the discharge air amount of the heating auxiliary air from the upper air port is received from the user. The control means adjusts according to the adjustment command of the air conditioning chamber or the measurement room temperature of the air-conditioning room, so that it is compared to simply discharging the auxiliary air for cooling with a constant air volume from the lower air port or simply with the auxiliary air for heating with a constant air volume Compared with discharging from the upper air port, the comfort of cooling and heating for the air-conditioning target room can be further enhanced.

External perspective view of indoor unit Front section showing the internal structure of the indoor unit and the outdoor unit Side view of indoor unit showing cooling operation state and heating operation state IV-IV sectional view in FIG. Cross section and perspective view of heat transfer element Side view of an indoor unit showing another embodiment

  FIG. 1 shows an indoor unit of an air conditioner according to the present invention. The indoor unit 1 includes a heat exchanging unit 2 that generates cool air during cooling operation and generates heat radiation and warm air during heating operation. The heat exchanging unit 2 is arranged in a state of being exposed in the air-conditioning target room in a vertical posture and is mounted on the body 3 of the indoor unit 1.

  Further, as shown in FIG. 2, the indoor unit 1 is connected to an outdoor unit 5 installed outdoors by two refrigerant refrigerant pipes 4 for returning and returning the refrigerant. The indoor unit 1 and the outdoor unit 5 are connected to an air conditioner. Is configured.

  The outdoor unit 5 includes a compressor 6a, an outdoor heat exchanger 6b, and an expansion valve 6c that constitute the refrigeration circuit 6, and a four-way valve 6d that switches a refrigerant path in the refrigeration circuit 6.

  The heat exchanging unit 2 equipped in the body 3 of the indoor unit 1 is formed by arranging copper heat transfer tubes 7 in parallel in a vertical tube posture in a horizontal row and connecting the upper ends of these heat transfer tubes 7. The upper refrigerant pipe 8a is connected to one of the transition refrigerant pipes 4 through the internal refrigerant pipe 8b, and the lower refrigerant pipe 8c in a horizontal pipe orientation connected to the lower end of each heat transfer pipe 7 is connected to the other of the transition refrigerant pipes 4. Connected.

  Further, the heat transfer pipes 7 arranged in parallel forming the heat exchanging section 2 are in a so-called reverse return system through the refrigerant pipes 8a to 8c in the container 3 with respect to the two transition refrigerant pipes 4 for refrigerant return. Connected.

  The four-way valve 6d provided in the outdoor unit 5 switches between cooling operation and heating operation by switching the refrigerant path in the refrigeration circuit 6. Specifically, in the cooling operation, the inside of each heat transfer tube 7 is switched. The refrigerant R functions as an evaporating part of the refrigerant R in the refrigeration circuit 6 to exchange heat between the refrigerant R and the indoor air RA of the air-conditioning target room, and the outdoor heat exchanger 6b of the outdoor unit 5 condenses the refrigerant R in the refrigeration circuit 6. The refrigerant path of the refrigeration circuit 6 is switched to a state in which the refrigerant R and the outside air exchange heat by functioning as a unit.

  In the heating operation, conversely, the inside of each heat transfer tube 7 functions as a condensing part of the refrigerant R in the refrigeration circuit 6 to exchange heat between the refrigerant R and the indoor air RA of the air-conditioned room, and the outdoor unit 5 The refrigerant path of the refrigeration circuit 6 is switched to a state in which the outdoor heat exchanger 6b functions as an evaporating portion of the refrigerant R in the refrigeration circuit 6 to exchange heat between the refrigerant R and outside air.

  That is, in the cooling operation, the low-pressure refrigerant R in the evaporation process after passing through the expansion valve 6c in the refrigeration circuit 6 (in other words, the low-pressure refrigerant in a wet vapor state) is passed through each heat transfer tube 7, and the refrigerant passing therethrough By cooling each heat transfer tube 7 by taking vaporization heat accompanying the evaporation of R, cold air CA is generated in the heat exchange section 2 as shown in FIG. 3A, and the generated cold air CA is heated as shown in FIG. By naturally descending from the heat exchanging unit 2 in a state along the exchanging unit 2 and supplying it to the air-conditioning target room, the air in the air-conditioning target room is cooled with the supplied cold air CA.

  Further, in the heating operation, the high-pressure refrigerant R (in other words, high-pressure refrigerant in a wet vapor state) in the condensation process after being discharged from the compressor 6a in the refrigeration circuit 6 is passed through each heat transfer tube 7 and passed therethrough. Heating each heat transfer tube 7 by releasing the condensed heat accompanying the condensation of the refrigerant R generates the heat radiation HR toward the room and the warm air HA as shown in FIG. 3B. Then, the generated warm air HA is naturally raised in a state along the heat exchanging section 2 and supplied to the air conditioning target room, thereby heating the room of the air conditioning target room with the supplied warm air HA and the heat radiation HR.

  When switching between the cooling operation and the heating operation as described above, in the cooling operation, the low-pressure refrigerant R after passing through the expansion valve 6c is supplied from the lower refrigerant pipe 8c to each heat transfer pipe 7, and the low-pressure refrigerant R is In the heating operation, the high-pressure refrigerant R after being discharged from the compressor 6a is supplied to the heat transfer tubes 7 from the upper refrigerant tubes 8a. The high-pressure refrigerant R is condensed in the downward passage process in each heat transfer tube 7.

  That is, in the cooling operation, the refrigerant R on the liquid phase side before evaporation is positioned on the lower end side of the heat transfer tube 7 in the vertical tube posture, and the refrigerant R on the liquid phase side after the condensation is also in the heating operation. It is located on the lower end side of the heat transfer tube 7 in the tube posture, so that the refrigerant R in the wet vapor state in the evaporation process or the condensation process can smoothly pass through the tube of the heat transfer tube 7. While reducing the load of 6a, power consumption is reduced, and the sound generated in the heat exchanging section 2 due to passage of the refrigerant R in the pipe is suppressed.

  Further, by forming the heat exchange section 2 by arranging the heat transfer tubes 7 in parallel in a vertical tube posture, the wetness in the evaporation process or the condensation process on the inner surface of the heat transfer tube 7 over the entire circumference of the heat transfer tube 7 in the tube circumferential direction. A large region in the longitudinal direction of the heat transfer tube 7 can be secured in a state where the refrigerant R in the vapor state is in contact with the heat transfer section 2, thereby uniformly generating the cold air CA and the heat radiation HR and the warm air HA in the heat exchange unit 2. Turn into.

  It should be noted that in the cooling operation, the presence region of the wet steam state refrigerant R in the evaporation process is ensured as much as possible with the length range of the heat transfer tube 7 as the upper limit range, and in the heating operation, the wetness in the condensation process is also ensured. The specifications of the refrigeration circuit 6 are set in advance so that the existence region of the refrigerant R in the vapor state is as large as possible with the length range of the heat transfer tube 7 as the upper limit range.

  That is, by this setting, in the cooling operation, unnecessary cooling of the upper refrigerant pipe 8a and the lower refrigerant pipe 8c that does not require the generation of cool air is suppressed, and condensed water (in the upper refrigerant pipe 8a and the lower refrigerant pipe 8c ( In other words, the cold refrigerant CA is uniformly generated in the entire heat exchanging portion 2 while suppressing the generation of condensed water), and in the heating operation, the upper refrigerant pipe 8a and the lower refrigerant pipe that do not need to generate heat radiation and warm air are not required. While suppressing unnecessary heating of the refrigerant pipe 8c, heat radiation HR and warm air HA are uniformly generated in the entire heat exchanging section 2.

  On the outer periphery of each heat transfer tube 7 forming the heat exchange section 2, a heat transfer element 9 made of a heat conducting material (made of aluminum in this example) is mounted so as to extend over almost the entire length of the heat transfer tube. As shown in FIG. 5, the heat transfer element 9 has a base portion 9 a attached to the outer periphery of the heat transfer tube 7 and a heat exchange from the base portion 9 a in a parallel arrangement with an interval in the arrangement direction of the heat transfer tubes 7 in a cross-sectional view. A plurality of heat transfer plates 9b (in other words, fins for absorbing and radiating heat) extending toward the opposite side of the portion 2 are provided.

  The heat transfer element 9 has a two-divided structure including two divided portions 9A and 9B each having a plurality of heat transfer plates 9b, and a heat transfer tube is formed between the base portion forming portions of the divided portions 9A and 9B. 7 is sandwiched in a fitted state and attached to the outer periphery of the heat transfer tube 7.

  That is, by mounting the heat transfer element 9 on the outer periphery of each heat transfer tube 7, a substantial heat transfer area of the heat exchanging unit 2 is secured, and the generation efficiency and heat of the cold air CA in the heat exchanging unit 2 are ensured. The generation efficiency of radiation HR and warm air HA is increased.

  Further, in the cooling operation, the cool air CA generated in the heat exchanging unit 2 is naturally lowered smoothly in a state of being rectified downward through the interval between the heat transfer plates 9b by the guide by the heat transfer plate 9b in the vertical plate posture, Further, in the heating operation, the warm air HA generated in the heat exchanging unit 2 is naturally raised smoothly in a state of being rectified upward through the interval between the heat transfer plates 9b by the guide by the heat transfer plate 9b in the vertical plate posture. It is.

  The body 3 of the indoor unit 1 includes a lower body part 3A positioned below the heat exchange part 2, an upper body part 3B located above the heat exchange part 2, and both sides of the heat exchange part 2. The upper side body part 3C is located between the lower side body part 3A and the upper side body part 3B, and the upper end part of each heat transfer tube 7 is passed through the upper side body part 3B. The upper side horizontal frame 10 and the upper refrigerant pipe 8a in a horizontal pipe posture are accommodated.

  Further, the lower body portion 3A includes a lower side frame 11 that penetrates the lower end of each heat transfer tube 7, a bottom frame 12 in a horizontal position disposed at the bottom, and a lower portion of the internal refrigerant tube 8b. And a lower refrigerant pipe 8c in a horizontal pipe posture, and a drain pan 13 for receiving condensed water flowing down from the heat exchanging part 2 through the heat transfer element 9 in the cooling operation.

  The condensed water received in the drain pan 13 is discharged to a suitable drainage point outside through the drain drain pipe 15 by a drain pump 15a built in the lower body part 3A.

  Each of the lateral body parts 3C includes the lateral ends of the upper frame 10, the lateral frame 11 of the lower frame 11, and the lateral frame 12. A vertical frame 14 that connects the parts is accommodated, and one vertical frame 14 accommodates a vertical pipe portion of the internal refrigerant pipe 8b.

  As shown in FIGS. 1 and 3, a lower air port 16A having a width across the entire width of the heat exchanging portion 2 is formed in the front portion of the lower body portion 3A, and similarly, on the front portion of the upper body portion 3B. Is formed with an upper air port 16B having a width across the entire width of the heat exchange section 2.

  As shown in FIGS. 2 to 4, a partition plate 17 having a communication port 17 a is formed at the upper and lower intermediate portions of the left and right lateral body parts 3 </ b> C, thereby moving the interior of the lateral side body part 3 </ b> C up and down. The fan 18 (in the communication port 17a of the partition plate 17 can be switched between a downward direction and an upward direction by switching the forward and reverse rotation directions by a controller 19 (switching means) described later. Equipped with a common fan).

  That is, in the cooling operation, the fan 18 is operated in a cooling air blowing state in which the air blowing direction is downward, so that the inside of the vessel 3 is used as an air guide path, as shown in FIG. The room air RA is sucked into the upper body part 3B from the air port 16B, and the intake air RA is supplied to the cooling auxiliary air A through the left and right side body parts 3C and the lower body part 3A. As described above, the air is discharged from the lower air port 16A toward the room of the air-conditioning target room while being blown to the descending cold air CA from the heat exchange unit 2.

  Further, in the heating operation, as shown in FIG. 3B, the fan 18 is operated in the heating air blowing state in which the air blowing direction is upward, and the inside of the vessel 3 is similarly used as the air guide path. The indoor air RA is sucked into the lower body part 3A from the lower air port 16A, and the intake air RA is assisted for heating through the inside of the left and right side body parts 3C and the inside of the upper body part 3B. The air is discharged from the upper air port 16B toward the room of the air-conditioning target room in a state where it is blown to the rising warm air HA from the heat exchange unit 2 as air A ′.

  That is, by performing such auxiliary air discharge, it promotes the formation of large air convection in a circulated flow in the air-conditioning target room, and reduces the temperature deviation in the vertical direction in the air-conditioning target room. Uniform and good cooling and heating can be applied to the air-conditioning target room.

  In FIG. 2, reference numeral 19 denotes a controller (control means). The controller 19 switches the fan 18 in the cooling operation and the heating operation, and in addition, the fan 19 in the cooling operation and the heating operation. The auxiliary air discharge operation for performing the operation 18 and the auxiliary air stop operation for keeping the fan 18 stopped are selectively performed according to a command from the user.

  In addition, when the controller 19 performs the auxiliary air discharge operation in each of the cooling operation and the heating operation, the controller 19 intermittently operates the fan 18 at a time interval set by the user, and then from the lower air port 16A. The intermittent mode in which the discharge of the cooling auxiliary air A and the discharge of the heating auxiliary air A ′ from the upper air port 16B are intermittent, and the cooling air A from the lower air port 16A by continuously operating the fan 18 are performed. The continuous mode in which the discharge or the discharge of the heating auxiliary air A ′ from the upper air port 16B is continuously discharged is selectively performed according to a command from the user.

  In addition, the controller 19 uses the air flow rate of the fan 18 (that is, the discharge air amount of the cooling auxiliary air A and the heating auxiliary air A ′) by adjusting the fan rotational speed in each of the intermittent mode and the continuous mode. It adjusts according to the command from the person.

[Another embodiment]
Next, another embodiment of the present invention will be listed.

  In the above-described embodiment, the cooling fan auxiliary air A is discharged from the lower air port 16A and the heating auxiliary air A ′ is discharged from the upper air port 16B by the common fan 18. As shown, the cooling fan 18A for discharging the cooling auxiliary air A from the lower air port 16A and the heating fan 18B for discharging the heating auxiliary air A 'from the upper air port 16B are separately provided. May be.

  Further, when the common fan 18 is used, switching between the cooling air blowing state for blowing air toward the lower air port 16A and the heating air blowing state for blowing air toward the upper air port 16B is performed by switching between forward and reverse rotations of the fan rotation direction. Instead of this, it is also possible to switch between the cooling air blowing state and the heating air blowing state by switching the air path with the damper device while keeping the rotation direction of the fan 18 constant.

  In the above-described embodiment, the example in which the room air RA around the container body 3 is sucked from the upper air port 16B during the cooling operation is shown, but the present invention is not limited to this, and the room air around the container body 3 sucked from other parts is shown. RA may be discharged from the lower air port 16A as the auxiliary air A for cooling.

  Similarly, in the above-described embodiment, the example in which the room air RA around the container body 3 is sucked from the lower air port 16A during the heating operation is shown, but the present invention is not limited to this, and the container body 3 sucked from other parts. The surrounding room air RA may be discharged from the upper air port 16B as the auxiliary air A 'for heating.

  In the case where the indoor unit 1 is installed in a state in which the indoor space portion to be air-conditioned is present on both the front side and the back side of the heat exchange unit 2, the lower air port 16A and the upper air port 16B are connected to the front side and the back side of the body 3. The auxiliary air discharge operation may be performed on both the front and back indoor spaces.

  The controller 19 automatically adjusts the discharge air volume of the cooling auxiliary air A and the heating auxiliary air A ′ (that is, the air flow rate of the fans 18, 18A, 18B) according to the measured room temperature of the air conditioning target room, Switching between the intermittent mode and the continuous mode, and switching between the auxiliary air discharge operation and the auxiliary air stop operation may be automatically performed.

  Moreover, in the above-mentioned embodiment, the example which sends auxiliary | assistant air A, A 'for cooling or heating to the lower air port 16A and the upper air port 16B through the inside of the device body 3 in the state using the device body 3 as a duct. However, the present invention is not limited to this, and a configuration in which auxiliary air A, A ′ for cooling or heating is sent to the lower air port 16A or the upper air port 16B through a dedicated air passage may be adopted.

  The present invention can also be applied to an air conditioner dedicated to cooling or an air conditioner dedicated to heating.

  The heat exchanging part 2 is not limited to being formed by arranging the heat transfer tubes 7 in parallel, and may be formed by a panel-like body that allows the heat medium R to pass through.

  Moreover, although the example using the refrigerant | coolant R of the refrigerating circuit 6 as a heat medium was shown in the above-mentioned embodiment, cold / hot water, brine, or water vapor | steam etc. may be sufficient.

  The present invention can be applied to air conditioners for various uses in various fields.

RA indoor air R heat medium 2 heat exchange unit 3 body CA cold air A cooling auxiliary air 16A lower air port 18, 18A cooling fan HR heat radiation HA warm air A 'heating auxiliary air 18, 18B heating fan 18 common fan 19 Switching means, control means

Claims (10)

A heat exchanging part that allows a low-temperature heat medium to exchange heat with the indoor air of the air-conditioning target room is provided inside,
By installing this heat exchange unit in a state of being exposed in the air-conditioning target room in a vertical posture and installing it in the body, the cold air generated in the heat exchange unit is naturally lowered in a state along the heat exchange unit for air conditioning. An air conditioner configured to supply to a target room,
A lower air port is formed in the lower part of the vessel body for discharging the cooling auxiliary air to the inside of the air-conditioned room in a state of blowing the cooling air from the heat exchanger.
An air conditioner equipped with a cooling fan that sucks indoor air around the body and discharges the intake air as auxiliary air for cooling from the lower air port.   The air conditioner according to claim 1, wherein an upper air port is provided at an upper portion of the body, and indoor air is sucked from the upper air port by the cooling fan. A heat exchange section is provided that allows a high-temperature heat medium to exchange heat with the room air in the air-conditioning target room.
The heat exchanging unit is arranged in a state of being exposed in the air-conditioning target room in a vertical posture and is mounted on the body so that heat is radiated from the heat exchanging part toward the air-conditioning target room and the heat exchange is performed. An air conditioner configured to naturally raise the warm air generated in the section along the heat exchanging section and supply the warm air to the air conditioning target room,
An upper air port is formed in the upper part of the body to discharge the air to the room of the air-conditioning target room while blowing the auxiliary air for heating to the rising warm air from the heat exchange unit,
An air conditioner equipped with a heating fan that sucks indoor air around the body and discharges the intake air from the upper air port as the heating auxiliary air.   The air conditioner according to claim 3, wherein a lower air port is provided at a lower portion of the body, and indoor air is sucked from the lower air port by the heating fan. A heat exchanging unit that allows a heat medium that exchanges heat with room air in the air-conditioning target room to pass therethrough is provided. It is possible to switch to heating operation that passes
By arranging the heat exchanging unit in a vertically exposed state in the air-conditioning target room and installing it in the body, in cooling operation, the cool air generated in the heat exchanging unit is naturally in a state along the heat exchanging unit. Lower it and supply it to the air-conditioned room,
In the heating operation, heat is radiated from the heat exchange unit toward the room of the air conditioning target room, and warm air generated in the heat exchange unit is naturally raised along the heat exchange unit and supplied to the air conditioning target room. Air conditioner,
In the cooling operation, in the state where the auxiliary air for cooling is blown to the descending cold air from the heat exchange unit, a lower air port that discharges toward the room of the air-conditioning target room is formed in the lower part of the body,
In the heating operation, an upper air outlet that discharges air to the room of the air-conditioning target room while blowing auxiliary air for heating to the rising warm air from the heat exchange unit is formed in the upper part of the body.
A cooling fan that sucks indoor air around the device during cooling operation and discharges the intake air from the lower air port as the cooling auxiliary air, and sucks indoor air around the device during heating operation An air conditioner equipped with a heating fan for discharging the intake air as the heating auxiliary air from the upper air port.   6. The air conditioner according to claim 5, wherein in the cooling operation, indoor air is sucked by the cooling fan from the upper air port, and in the heating operation, indoor air is sucked by the heating fan from the lower air port. . Switching means for providing a common fan and switching between a cooling air blowing state in which air is discharged from the lower air port by the common fan and a heating air blowing state in which air is discharged from the upper air port by the common fan. Provided,
By switching by this switching means, in the cooling operation, the common fan is used as the cooling fan and cooling auxiliary air is discharged from the lower air port. In the heating operation, the common fan is used as the heating fan and the upper air port. The air conditioner according to claim 5 or 6, wherein heating air is discharged from the air.   The air conditioner according to claim 2, 4, or 6, wherein the vessel body has a structure in which an inside thereof becomes an air guide path that communicates the lower air port with the upper air port.   The cooling fan according to any one of claims 1, 2, 5 to 7, or the heating fan according to any one of claims 3, 4, 5 to 7 is intermittently operated. An air conditioner provided with a control means.   The air flow of the cooling fan according to any one of claims 1, 2, 5 to 7, or the feeding of the heating fan according to any one of claims 3, 4, 5 to 7. An air conditioner provided with control means for adjusting the air volume according to an adjustment command from a user or a measurement room temperature of the air-conditioning target room.

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