JP2008185274A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of uniforming a temperature distribution of a whole indoor space. <P>SOLUTION: An indoor unit 50 has four blow-out openings on a front face of a casing 4. The four blow-out openings are comprised of an upper blow-out opening 1, a right side part blow-out opening 2a, a left side part blow-out opening 2b, and a lower blow-out opening 3. A suction opening 10 is provided on a back face of the casing 4. By this, by the Coanda effect, warm air blown out from the upper blow-out opening 1 flows along a ceiling face, warm air blown out from the lower blow-out opening 3 flows along a floor face, and warm air blown out from each of the right side part blow-out opening 2a and the left side part blow-out opening 2b flows along a wall surface of a room. As a result, warm air wrapping around the whole indoor space is produced. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an air conditioner having a fan-heat exchanger unit that is used by being placed on an indoor floor.

Conventionally, a packaged air conditioner installed in a living room or the like has been used as an example of an air conditioner. In a conventional floor-standing indoor unit of an air conditioner such as a packaged air conditioner, that is, a floor-mounted fan exchanger-unit, outside air is generally sucked from a suction port provided in the front of the lower part. Then, cold air or hot air is blown out from the air outlet provided in the upper front.
JP 2006-189198 A

  In general, it is desirable to bring warm air into contact with the floor surface during heating operation of an air conditioner, for example. However, in order to blow out hot air so that warm air is brought into contact with the floor surface, it is necessary to provide a hot air outlet in front of the lower part of the air conditioner. However, for example, if both the suction port and the air outlet are provided in the front without any ingenuity, the warm air blown from the front air outlet at the lower part of the air conditioner rises and the air conditioner enters the air conditioner. Will be sucked into. That is, a short circuit of warm air is generated. When a short circuit occurs, the temperature distribution in the entire indoor space cannot be made uniform. Note that similar problems may occur during cooling operation.

  In addition, floor-mounted indoor units such as packaged air conditioners are often installed at corners of indoor spaces. In this case, the blowing direction of the wind from the indoor unit is blown mainly along one diagonal direction of the rectangular parallelepiped that forms the indoor space. Therefore, it is difficult for cold air or hot air to reach the vicinity of the corner portion of the indoor space on another diagonal line different from the one diagonal line described above.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an air conditioner that can make the temperature distribution of the entire indoor space uniform.

  An air conditioner according to the present invention includes a housing, a fan provided in the housing, an upper outlet provided in front of the upper portion of the housing, for discharging the airflow generated by the fan to the outside, and the housing And a lower outlet for discharging the airflow generated by the fan to the outside. In addition, the air conditioner is provided in front of the left side of the casing, and is provided in the front of the right side of the casing and the left outlet for discharging the airflow generated by the fan to the outside. The right side air outlet for discharging the airflow to the outside, the suction port for guiding the airflow from the outside toward the fan, and the airflow generated by the fan. And a heat exchanger that provides cold or warm heat.

  According to this, warm air can be blown out along the floor surface without causing a short circuit between the air outlet and the air inlet. Also, due to the Coanda effect, warm air blown out from the upper outlet flows along the ceiling surface, and warm air blown out from the lower outlet flows along the floor surface, from each of the left side outlet and right side outlet The warm air blown out flows along the wall surface. As a result, warm air that envelops the entire indoor space is generated. Therefore, the temperature distribution in the indoor space can be made uniform during the heating operation.

  The air conditioner of the present invention is more preferably a lower duct that forms a flow path between the fan and the lower outlet, a lower damper provided in the lower duct, and a controller that controls the fan and the damper. And the controller executes control to close the lower damper during the cooling operation.

  According to the above configuration, by appropriately closing the lower damper during the cooling operation (including the dehumidifying operation), the upper air outlet, the left air outlet, and the right air outlet are not blown out from the lower air outlet. Only cold air can be blown out. Accordingly, it is possible to prevent cold air accumulation from occurring near the floor surface during cooling operation. On the other hand, the cold air blown out from the upper outlet pours down from above. Therefore, the temperature distribution in the indoor space becomes more uniform in the vertical direction during the cooling operation.

  More preferably, the air conditioner of the present invention includes a lower duct that forms a flow path between the fan and the lower outlet, a lower damper provided in the lower duct, and a controller that controls the fan and the damper. In addition, the controller performs control to open the lower damper during heating operation.

  According to the above configuration, the warm air is blown from the upper outlet, the lower outlet, the left side outlet, and the right side outlet during the heating operation, so that the temperature distribution in the indoor space is uniform as described above. Can be

  The air conditioner of the present invention is more preferably a lower duct that forms a flow path between the fan and the lower outlet, a lower damper provided in the lower duct, and a controller that controls the fan and the damper. And the controller executes control to close the lower damper during heating operation.

  According to said structure, generation | occurrence | production of the inconvenience resulting from the warm air blown off from the lower blower outlet blowing up from the floor surface can be prevented. In addition, as an example of inconvenience, documents on the desk flew up by hot air blown from the lower air outlet, or hot air blown from the lower air outlet collided with an object placed on the floor surface. It is possible to be relaxed.

  The air conditioner of the present invention is more preferably a lower duct that forms a flow path between the fan and the lower outlet, a lower damper provided in the lower duct, and a controller that controls the fan and the damper. When the controller is performing control for cooling operation at the maximum output, the controller executes control to lower the target indoor temperature setting value and open the lower damper.

  According to the above configuration, when the cooling operation is performed at the maximum output, not only the upper air outlet, the left air outlet, and the right air outlet but also the cold air is blown out from the lower air outlet, It becomes possible to cool the space rapidly.

  In the air conditioner of the present invention, more preferably, a lower duct that forms a flow path between the fan and the lower outlet, a lower damper provided in the lower duct, a fan and an upper outlet. The apparatus further includes an upper duct that forms a flow path therebetween, an upper damper provided in the duct, a fan, a lower damper, and a controller that controls the upper damper. In this case, it is desirable that the controller performs control to open the upper damper and close the lower damper during the cooling operation.

  According to said structure, a cold wind blows off from an upper blower outlet, a left part blower outlet, and a right part blower outlet at the time of air_conditionaing | cooling operation. According to this, as described above, since the cool air is not blown out from the lower outlet during the cooling operation, it is possible to prevent the cold air accumulation from occurring in the vicinity of the floor surface. In addition, since the cold air blown out from the upper outlet flows downward from above, the temperature distribution in the indoor space becomes more uniform in the vertical direction.

  In the air conditioner of the present invention, more preferably, a lower duct that forms a flow path between the fan and the lower outlet, a lower damper provided in the lower duct, a fan and an upper outlet. The apparatus further includes an upper duct that forms a flow path therebetween, an upper damper provided in the duct, a fan, a lower damper, and a controller that controls the upper damper. In this case, it is desirable that the controller performs control to open the upper damper and close the lower damper during the heating operation.

  According to this, warm air is blown out from the upper outlet, the left side outlet, and the right side outlet by closing the lower damper during the heating operation. Therefore, it is possible to prevent the occurrence of inconvenience due to the upward flow of the airflow blown out from the lower outlet from the floor surface. At this time, since the amount of warm air can be increased by opening the upper damper, the heating capacity can be improved.

  In the air conditioner of the present invention, more preferably, a lower duct that forms a flow path between the fan and the lower outlet, a lower damper provided in the lower duct, a fan and an upper outlet. The apparatus further includes an upper duct that forms a flow path therebetween, an upper damper provided in the duct, a fan, a lower damper, and a controller that controls the upper damper. In this case, it is desirable that the controller performs control to close the upper damper and open the lower damper during the heating operation.

  According to this, warm air is blown out from the lower outlet, the left side outlet, and the right side outlet during the heating operation. That is, warm air is not blown from the upper outlet during heating operation. Therefore, the amount of warm air blown from the lower outlet, the left side outlet, and the right side outlet increases. As a result, the warm air can reach a position far from the air conditioner in the space near the floor.

  In the air conditioner of the present invention, more preferably, a lower duct that forms a flow path between the fan and the lower outlet, a lower damper provided in the lower duct, a fan and an upper outlet. The apparatus further includes an upper duct that forms a flow path therebetween, an upper damper provided in the duct, a fan, a lower damper, and a controller that controls the upper damper. In this case, when the controller is executing the control for the cooling operation at the maximum output, the controller sets the target indoor temperature to the lowest value and performs the control to open both the lower damper and the upper damper. It is desirable.

  According to the above configuration, when the cooling operation at the maximum output is performed, the wind is blown out from the upper outlet, the lower outlet, the left side outlet, and the right side outlet. Therefore, during the cooling operation, the outdoor space can be rapidly cooled.

  In the above case, the air conditioner of the present invention preferably further includes an indoor temperature sensor that measures the temperature of indoor air or a heat exchanger temperature sensor that measures the temperature of the heat exchanger. In this case, when the controller performs control to open both the lower damper and the upper damper while performing cooling operation at the maximum output, the value of the indoor temperature detected by the indoor temperature sensor or the heat exchanger temperature sensor is the target. If the value is lower than the set value of the indoor temperature or heat exchanger temperature, or if the value is between the set value and the set value that is higher than the set value for a predetermined time, the lower damper is closed. It is desirable to perform control.

  Generally, when cooling air is blown out from the lower outlet for a long time during cooling operation, condensation may occur on the floor surface. However, according to the above configuration, when it is estimated that the room temperature has dropped to the target temperature, the blowing of the cold air from the lower outlet is stopped by closing the lower damper. The occurrence of condensation on the surface can be prevented.

  In the air conditioner of the present invention, more preferably, a lower duct that forms a flow path between the fan and the lower outlet, a lower damper provided in the lower duct, a fan and an upper outlet. The apparatus further includes an upper duct that forms a flow path therebetween, an upper damper provided in the duct, a fan, a lower damper, and a controller that controls the upper damper. In this case, when the control for the heating operation at the maximum output is executed, the controller executes the control for opening the lower damper and the upper damper while setting the target indoor temperature to the highest value. It is desirable to do.

  According to the above configuration, during the heating operation at the maximum output, the total air volume blown out from the air conditioner increases, so that the heating capacity is improved.

  In the above case, the air conditioner of the present invention preferably further includes an indoor temperature sensor that measures the temperature of indoor air or a heat exchanger temperature sensor that measures the temperature of the heat exchanger. In addition, the controller controls the indoor temperature or the heat exchanger detected by the indoor temperature sensor or the heat exchanger temperature sensor when executing the control to open both the lower damper and the upper damper while performing the heating operation at the maximum output. If the value of the temperature exceeds the set value of the target indoor temperature or heat exchanger temperature, it is desirable to execute control to close the upper damper.

  In general, warm air is easy to flow upward because the air density is low and light. In this case, according to the above configuration, when the temperature of the indoor space has already reached or exceeded the set temperature, the temperature of the indoor air is stopped by stopping the blowing of warm air from the upper outlet. The uniformity of the can be maintained.

  The air conditioner of the present invention includes a left side cover member that can close the left side outlet and can change the posture so that the direction of the wind blown from the left side outlet can be changed. And a right side cover member provided so that the posture can be changed so that the direction of the flow of the wind blown from the right side outlet can be changed while the right side outlet can be closed. desirable.

  In addition, it is desirable that the left side lid member and the right side lid member can be changed in posture according to the installation position of the air conditioner in the space in which the temperature is adjusted by the air conditioner.

  According to the said structure, it becomes possible to blow off wind effectively in the direction along an inner wall according to the installation position in the space of an air conditioner. Therefore, the temperature distribution in the indoor space can be made uniform by generating wind so as to wrap the entire indoor space using the Coanda effect. Further, when the left side lid member and the right side lid member close the left side outlet and the right side outlet, respectively, the air can be intensively blown out from the upper outlet, so that the indoor space where the user normally lives is The central part of the can be rapidly cooled or heated.

  Hereinafter, an air conditioner according to an embodiment of the present invention will be described with reference to the drawings. In addition, since the site | part with which the same code | symbol is attached | subjected in the drawing referred below performs the same function, the description is not repeated unless there is particular need.

(Embodiment 1)
First, the structure of the air conditioner of this Embodiment is demonstrated using FIGS. As shown in FIGS. 1 to 14, the air conditioner of the present embodiment includes an indoor unit 50. The indoor unit 50 is a unit including a fan and a heat exchanger, and is used by being placed on an indoor floor. Moreover, in this Embodiment, since the indoor unit 50 is provided with the characteristics of the invention of an air conditioner, description of an outdoor unit is abbreviate | omitted and the outdoor unit is not illustrated. The outdoor unit has the same function as the outdoor unit used for a normal air conditioner. In general, the outdoor unit includes a compressor that compresses the refrigerant and an outdoor heat exchanger, and the indoor unit 50 and the outdoor unit are connected to each other by a pipe through which the refrigerant circulates.

  As shown in FIGS. 1 and 2, the indoor unit 50 includes a housing 4. The housing | casing 4 has four blower outlets in the front. The four air outlets include an upper air outlet 1, a left side air outlet 2 b, a right side air outlet 2 a, and a lower air outlet 3.

  As shown in FIG. 3, a fan 5 that generates an airflow is provided in the housing 4. The fan 5 can flow an airflow to the upper duct 19 and the lower duct 16. Further, a lower damper 6 is provided in the lower duct 16, and it is determined by the opening / closing operation of the lower damper 6 whether or not an air flow proceeds in the lower duct 16. Further, an upper damper 9 is provided in the upper duct 19, and whether or not an air flow is blown out from the upper outlet 1 is determined by an opening / closing operation of the upper damper 9.

  Further, as shown in FIG. 4, a suction port 10 is provided in the center of the back surface of the housing 4. A filter 8 is provided in the vicinity of the suction port 10. The filter 8 removes foreign matters such as dust from the air passing through the suction port 10. The air that has passed through the filter 8 passes through the heat exchanger 7. At this time, heat exchange is performed between the air and the heat exchanger 7. The heat-exchanged air reaches the fan 5 and then flows into the upper duct 19 and the lower duct 16 through the fan 5.

  In such an air conditioner of the present embodiment, the heat exchanger 7 is provided on the upstream side of the fan 5, that is, the fan 5 is provided on the downstream side of the heat exchanger. The velocity of the air flow generated by the air flows into the upper duct 19 and the lower duct 16 without being reduced by the heat exchanger 7. Therefore, the speed of the airflow blown out from the upper outlet 1, the left side outlet 2b, the right side outlet 2a, and the lower outlet 3 is higher than the conventional one.

  According to the structure of the air conditioner of the present embodiment, a short circuit is formed between each of the upper outlet 1, the lower outlet 3, the left side outlet 2b, and the right side outlet 2a and the suction port 10. Cold air or warm air can be blown out along the ceiling surface, floor surface, and wall surface without being generated.

  Further, due to the Coanda effect, as shown in FIGS. 5 to 8, the warm air blown from the upper outlet 1 flows along the ceiling surface 100a, and the warm air blown from the lower outlet 3 follows the floor surface 100b. The warm air blown out from each of the left side outlet 2b and the right side outlet 2a flows along the wall surface 100c of the room. As a result, cool air or warm air that envelops the entire indoor space is generated. Therefore, the temperature distribution in the indoor space can be made uniform during the cooling operation and the heating operation.

  The airflow which the indoor unit of the air conditioner of the said embodiment produces | generates is demonstrated in detail using FIGS. 5-8, the indoor unit 50 is installed on the floor surface inside the corner | angular part of rectangular parallelepiped indoor space. In this case, when the airflow is blown from both the upper blower outlet 1 and the lower blower outlet 3, as shown in FIGS. 5 and 6, along the ceiling surface 100a, the floor surface 100b, and the wall surface 100c. Airflow flows. On the other hand, when the lower damper 6 is closed and the airflow is blown out only from the upper outlet 1, the airflow flows along the ceiling surface 100 a as shown in FIGS. 7 and 8. There is no airflow in the vicinity. Moreover, it is the same that an airflow flows along the wall of the wall surface 100c.

  A controller 30 is provided in the housing 4. The controller 30 is electrically connected to a drive device (not shown) that rotates the fan 5, a drive device (not shown) that rotates the upper damper 9, and a drive device (not shown) that rotates the lower damper 6. It is connected. Further, the controller 30 receives the input of a command signal from the user using the operation unit 20 and controls each driving device, thereby independently controlling the opening / closing operations of the upper damper 9 and the lower damper 6. .

  Note that the driving devices for rotating the upper damper 9 and the lower damper 6 are each composed of a stepping motor or the like. More specifically, the controller 30 adjusts the rotation angle of the stepping motor for the opening / closing operation of the upper damper 9 and the lower damper 6. Thereby, the controller 30 controls the postures of the upper damper 9 and the lower damper 6. Furthermore, the controller 30 controls the number of rotations of the fan 5 according to the type of command signal issued by the user. Thereby, the velocity of the airflow flowing through the upper duct 19 and the lower duct 16 can be controlled.

  The structure of the indoor unit 50 of the present embodiment shown in FIGS. 1 to 4 is schematically shown in FIGS. In FIG. 10, an upper louver 1 a for opening and closing the upper air outlet 1 and a lower louver 3 a for opening and closing the lower air outlet 3 are depicted. The posture of the upper louver 1a and the posture of the lower louver 3a may be manually changed, respectively, but may be changed by the control of the controller 30 so as to be interlocked with the control of the upper damper 9 and the lower damper 6.

  In the present embodiment, in order to control the flow rate of the gas flowing through the upper duct 19, the indoor unit 50 provided with the upper damper 9 is shown, but as shown in FIGS. In addition, an air conditioner in which the upper damper 9 is not provided but only the lower damper 6 is provided may be used. However, the air conditioner in which both the upper damper 9 and the lower damper 6 are provided is exhibited by the air conditioner in which only the lower damper 6 is provided by always opening the upper damper 9. The same function as the function can be exhibited.

  Further, the flow of air in the indoor unit 50 of the present embodiment is indicated by arrows in FIG. In the indoor unit 50 of the present embodiment, the air sucked from the suction port 10 is sent to each of the upper duct 19 and the lower duct 16 via the filter 8, the heat exchanger 7, and the fan 5, Thereafter, the air is discharged from the upper outlet 1 and the lower outlet 3 to the outside.

  Next, the control system for the air conditioner of the present embodiment will be described using the block diagram shown in FIG.

  In FIG. 15, the controller 30 performs control according to the control signal transmitted by the operation of the operation unit 20 and can specify the temperatures detected by the indoor temperature sensor 40 and the heat exchanger temperature sensor 60. It is possible to perform control according to.

  Further, the controller 30 outputs a command signal to the motor 6a. The posture of the lower damper 6 is controlled by the rotation of the motor 6a. Moreover, the controller 30 transmits a command signal to the motor 9a. The motor 9 a controls the attitude of the upper damper 9. Furthermore, the controller 30 transmits a designation signal to the motor 5a. The rotation speed of the fan 5 is controlled by the rotation of the motor 5a.

  Next, the control flow performed in the controller 30 of the indoor unit 50 of the air conditioner of the present embodiment will be described using FIG. FIG. 16 is a flowchart showing the control of the air conditioner in which the upper damper 9 and the upper louver 1a as shown in FIG. 12 are not provided.

  As shown in FIG. 16, in the control flow of the indoor unit 50 of the air conditioner of the present embodiment, the controller 30 first starts the cooling operation, the upper louver 1a, the left louver (not shown), And open the right louver (not shown).

  Next, in step S1, it is determined whether the current operation state is cooling or heating. If it is determined in step S1 that the current operating state is cooling, control for closing the lower damper 6 and the lower louver 3a is executed in step S2. When the lower louver 3a is a manual type, it is assumed that the lower louver 3a is always open. Further, the lower louver 3a is controlled so as to be always open when the opening / closing control is not performed in conjunction with the operation of the lower damper 6. Next, in step S3, other normal specification operations are performed.

  On the other hand, if it is determined in step S1 that the current operation state is the heating operation state, control for opening the lower damper 6 and the lower louver 3a is performed in step S4. Thereafter, in step S3, the other normal operation is performed.

  As shown in FIG. 16, in the control of the indoor unit 50 of the air conditioner according to the present embodiment, during the cooling operation, the lower damper 6 and the lower louver 3a can be closed, so that the cold air flows along the floor surface. This can be suppressed. When the lower louver 3a is a manual type, it is assumed that the lower louver 3a is always open, so that only the lower damper 6 is closed, thereby causing condensation on the floor surface. Is prevented. Further, during the heating operation, the lower damper 6 and the lower louver 3a are opened, so that warm air flows along the floor surface. As a result, the room air can be made to have a more uniform temperature including the vicinity of the floor surface.

  In this embodiment, the air conditioner provided with the lower louver 3a is shown. However, in the air conditioner not provided with the lower louver 3a, only the lower damper 6 is controlled as described above. However, the effect similar to the effect acquired by the air conditioner of this Embodiment can be acquired. This is the same also in control of the air conditioner of each embodiment shown below.

  Further, in the present embodiment, in the air conditioner provided with the lower louver 3a, the lower louver 3a is always set to an open state manually or under the control of the controller 30, and only the lower damper 6 is set as described above. Even if it controls in this way, the effect similar to the effect acquired by the air conditioner of this Embodiment can be acquired. This is the same also in control of the air conditioner of each embodiment shown below.

(Embodiment 2)
Next, the control flow performed in the controller 30 of the indoor unit 50 of the air conditioner of the present embodiment will be described using FIG. FIG. 17 is a flowchart showing the control of the air conditioner in which the upper damper 9 and the upper louver 1a as shown in FIG. 12 are not provided.

  The structure and function of the air conditioner indoor unit 50 according to the present embodiment are substantially the same as the structure and function of the air conditioner indoor unit 50 according to the first embodiment described above. Of the configuration of the indoor unit 50 of the air conditioner of the embodiment, the difference from the configuration of the indoor unit 50 of the air conditioner of the first embodiment will be mainly described.

  In the present embodiment, as shown in FIG. 17, first, in step S11, it is determined whether the current operation state is a cooling operation state or a heating operation state. If it is determined in step S11 that the current operating state is the cooling state, control for closing the lower damper 6 and the lower louver 3a is executed in step S12. Thereafter, in step S13, other normal operation is performed.

  On the other hand, when it is determined in step S11 that the current operation state is the heating operation state, in step S14, air is blown out only from the upper outlet 1, the left side outlet 2b, and the right side outlet 2a. It is determined whether or not a command signal for instructing to stop the air blowing from the lower air outlet 3 is transmitted to the controller 30. In step S14, the controller 30 provides a command signal indicating that the user is in a state where air from only the upper outlet 1, the left outlet 2b, and the right outlet 2a is blown by the operation of the operation unit 20. In step S12, control for closing the lower damper 6 and the lower louver 3a is executed. On the other hand, in step S14, if the user has not input a command signal indicating that the airflow is blown out only from the upper outlet 1, the left outlet 2b, and the right outlet 2a, In step S15, control for opening the lower damper 6 and the lower louver 3a is executed. Thereafter, the process of step S13 is executed.

  According to the control of the indoor unit 50 of the air conditioner of the present embodiment, the airflow is blown out only from the upper outlet 1, the left side outlet 2b, and the right side outlet 2a even during the heating operation. When it is determined that the control to be performed is performed, the lower damper 6 and the lower louver 3a are closed, and airflow is blown out only from the upper outlet 1, the left side outlet 2b, and the right side outlet 2a. Is done. As a result, even during the heating operation, the upper air outlet 1, the lower air outlet 3, and the left air outlet 2 b are blown out only from the upper air outlet 1, the left air outlet 2 b, and the right air outlet 2 a. Compared with the case where airflow is blown out from all of the right side outlets 2a, warm air can be sent out further away.

(Embodiment 3)
Next, the air conditioner according to the embodiment of the present invention will be described with reference to FIG.

  The structure and function of the air conditioner indoor unit 50 according to the present embodiment are substantially the same as the structure and function of the air conditioner indoor unit 50 according to the first embodiment described above. Of the configuration of the indoor unit 50 of the air conditioner of the embodiment, the difference from the configuration of the indoor unit 50 of the air conditioner of the first embodiment will be mainly described.

  As shown in FIG. 18, in controller 30 of indoor unit 50 of the air conditioner of the present embodiment, first, in step S21, whether the current operation state is a cooling operation state or a heating operation state. Determined. If it is determined in step S21 that the current operating state is the cooling state, in step S22, air is blown out from only the upper outlet 1, the left side outlet 2b, and the right side outlet 2a. It is determined whether or not a command signal instructing this is transmitted to the controller 30. In step S21, if a command signal instructing that air is blown from only the upper outlet 1, the left side outlet 2b, and the right side outlet 2a is transmitted to the controller 30, the process proceeds to step S24. , Control for closing the lower damper 6 is executed.

  On the other hand, in step S22, the command signal instructing that air is blown out only from the upper outlet 1, the left side outlet 2b, and the right side outlet 2a has not been transmitted to the controller 30. For example, in step S23, it is determined whether or not the control for operating at the maximum output is being executed. If it is not determined in step S23 that the cooling operation is performed at the maximum output, control for closing the lower damper is executed in S24.

  In this specification, the operation at the maximum output means that the rotation speed of the fan 5 is rotated with the maximum capacity of the motor, or the refrigerator is rotated with the maximum capacity such as the speed of the rotation or reciprocation of the compressor. It means that This is the same in the following embodiments.

  On the other hand, if it is determined in step S23 that the cooling operation is performed at the maximum output, control for opening the lower damper 6 is executed in step S27.

  In step S21, when the current state is the heating operation state, in step S26, the air is blown out from only the upper outlet 1, the left side outlet 2b, and the right side outlet 2a. It is determined whether or not a command signal instructing this is transmitted to the controller 30.

  In step S26, when a command signal instructing that air is blown out from only the upper air outlet 1, the left air outlet 2b, and the right air outlet 2a is transmitted to the controller 30, In step S <b> 24, the controller 30 executes a control for closing the lower damper 6 while making the set value of the target indoor temperature the smallest. On the other hand, in step S26, a command signal instructing that air is blown out only from the upper outlet 1, the left outlet 2b, and the right outlet 2a has not been transmitted to the controller 30. For example, in S27, control for opening the lower damper 6 is executed. In step S25, other normal operation is performed.

  According to the above configuration, by cooling air from the lower air outlet 3 as well as the upper air outlet 1, the left air outlet 2 b and the right air outlet 2 a during the cooling operation at the maximum output, Can be rapidly cooled.

(Embodiment 4)
Next, the air conditioner of Embodiment 4 of this invention is demonstrated using FIG. The structure and function of the air conditioner indoor unit 50 according to the present embodiment are substantially the same as the structure and function of the air conditioner indoor unit 50 according to the first embodiment described above. Of the configuration of the indoor unit 50 of the air conditioner of the embodiment, the difference from the configuration of the indoor unit 50 of the air conditioner of the first embodiment will be mainly described.

  As shown in FIG. 19, in the controller 30 of the indoor unit 50 of the air conditioner according to the present embodiment, first, in step S31, is the current operation state a cooling operation state or a heating operation state? It is determined whether or not. If it is determined in step S31 that the current operating state is the cooling state, in step S32, control is performed in which the upper damper 9 is opened and the lower damper 6 is closed.

  On the other hand, when it is determined in step S31 that the current operation state is the heating operation state, in step S34, control is performed in which the upper damper 9 is closed and the lower damper 6 is opened. Even after any one of steps S32 and S34 is completed, control of other normal operation is executed in step S33.

  According to said structure, at the time of air_conditionaing | cooling operation, cold wind blows off from the upper blower outlet 1, left side blower outlet 2b, and right side blower outlet 2a, and at the time of heating operation, lower blower outlet 3, left side blower outlet 2b, and Hot air is blown out from the right side outlet 2a.

  According to such control of the present embodiment, cold air is not blown out from the lower outlet 3 during the cooling operation, so that cold air accumulation is prevented from occurring near the floor surface. In addition, since the cold air blown from the upper outlet 1 flows downward from above, the temperature distribution in the indoor space becomes more uniform in the vertical direction.

  In addition, since air is not blown from the upper outlet 1 during the heating operation, the amount of warm air blown from the lower outlet 3, the left side outlet 2b, and the right side outlet 2a increases. Therefore, warm air can be made to reach a position far from the indoor unit 50 of the air conditioner in the space near the floor.

(Embodiment 5)
Next, control of the air conditioner according to Embodiment 5 of the present invention will be described with reference to FIG. The structure and function of the air conditioner indoor unit 50 according to the present embodiment are substantially the same as the structure and function of the air conditioner indoor unit 50 according to the first embodiment described above. Of the configuration of the indoor unit 50 of the air conditioner of the embodiment, the difference from the configuration of the indoor unit 50 of the air conditioner of the first embodiment will be mainly described.

  As shown in FIG. 20, in the control of the controller 30 of the indoor unit 50 of the air conditioner according to the present embodiment, first, in step S41, the current operation state is the cooling operation state or the heating operation state. It is determined whether or not there is. If it is determined that the current operation state is the cooling operation state, in step S42, control is performed in which the upper damper 9 is opened and the lower damper 6 is closed.

  On the other hand, if it is determined in step S41 that the current operation state is the heating operation state, air is blown out only from the upper outlet 1, the left side outlet 2b, and the right side outlet 2a. It is determined whether or not a command signal for instructing is transmitted to the controller 30. In step S44, if a command signal instructing that air is blown from only the upper outlet 1, the left side outlet 2b, and the right side outlet 2a is transmitted to the controller 30, the process proceeds to step S42. , Control is performed in which the upper damper 9 is opened and the lower damper 6 is closed. On the other hand, in step S44, if a command signal instructing that air is blown out from only the upper outlet 1, the left side outlet 2b, and the right side outlet 2a has not been transmitted to the controller 30, Control is performed in which the upper damper 9 is closed and the lower damper 6 is opened.

  Also in the present embodiment, after steps S42 and S45 are completed, another normal specification operation is performed in step S43.

  According to the control of the present embodiment, in S42, the process for blowing out warm air from the upper outlet 1, the left outlet 2b, and the right outlet 2a by closing the lower damper 6 during the heating operation. Is executed. Therefore, it is possible to prevent the occurrence of inconvenience due to the airflow blowing upward from the floor surface from the lower air outlet 3 during the heating operation. As inconveniences, for example, it is conceivable that light things such as paper on a desk are blown away, or hot air intensively collides with an object placed so as to shield the lower outlet 3. At this time, by opening the upper damper 9, it is possible to increase the amount of warm air, so that the heating capacity can be improved.

(Embodiment 6)
Next, control of the air conditioner according to Embodiment 6 of the present invention will be described with reference to FIG. The structure and function of the air conditioner indoor unit 50 according to the present embodiment are substantially the same as the structure and function of the air conditioner indoor unit 50 according to the first embodiment described above. Of the configuration of the indoor unit 50 of the air conditioner of the embodiment, the difference from the configuration of the indoor unit 50 of the air conditioner of the first embodiment will be mainly described.

  As shown in FIG. 21, in the control of the controller 30 of the indoor unit 50 of the air conditioner according to the present embodiment, first, in step S51, is the current operating state a heating state or a cooling state? Is determined. When it is determined in step S51 that the current operation state is the cooling state, in step S52, air is blown out only from the upper outlet 1, the left side outlet 2b, and the right side outlet 2a. It is determined whether or not a command signal for instructing to be transmitted to the controller 30. In step S52, if a command signal instructing that air is blown out from only the upper air outlet 1, the left air outlet 2b, and the right air outlet 2a has been transmitted to the controller 30, In step S53, it is determined whether or not a signal instructing cooling operation at the maximum output has been transmitted to the controller 30.

  In step S53, if the signal instructing the cooling operation at the maximum output has not been transmitted to the controller 30, the process of step S54 is executed. In step S54, the upper damper 9 is opened and the lower damper 6 is closed. Thereafter, in step S55, other normal specification operation is performed.

  Further, if it is determined in step S51 that the current operation state is the heating operation state, air is blown out only from the upper outlet 1, the left side outlet 2b, and the right side outlet 2a in step S56. It is determined whether or not a command signal for instructing the state has been transmitted to the controller 30. In step S56, if a command signal instructing that air is blown out only from the upper outlet 1, the left outlet 2b, and the right outlet 2a has been transmitted to the controller 30, In step S54, the upper damper 5 is opened and the lower damper 6 is closed.

  On the other hand, in step S56, a command signal instructing that air should be blown out only from the upper outlet 1, the left outlet 2b, and the right outlet 2a has not been transmitted to the controller 30. For example, in step S57, it is determined whether or not a signal instructing the heating operation at the maximum output has been transmitted to the controller 30.

  In step S57, if the signal instructing the heating operation at the maximum output has not been transmitted to the controller 30, the upper damper 9 is closed and the lower damper 6 is opened in step S59. On the other hand, if a signal instructing heating operation at the maximum output is transmitted to the controller 30 in step S57, the upper damper 9 and the lower damper 6 are opened in step S58. In addition, after the process of step S58 and step S59 is complete | finished, the process of step S55 is performed.

  According to the control of the present embodiment, in S54, the process for blowing out warm air from the upper air outlet 1, the left air outlet 2b, and the right air outlet 2a by closing the lower damper 6 during the heating operation. Is executed. Therefore, it is possible to prevent the occurrence of inconvenience due to the airflow blowing upward from the floor surface from the lower outlet 3. At this time, by opening the upper damper 9, it is possible to increase the amount of warm air, so that the heating capacity can be improved.

  Further, according to the above configuration, when operating at the maximum output, in both the cooling operation and the heating operation, in S58, the upper outlet 1, the lower outlet 3, the left side outlet 2b, and Control is performed to blow wind from the right side outlet 2a. Therefore, the outdoor space can be rapidly cooled during the cooling operation. Further, during the heating operation, the total air volume blown out from the air conditioner increases, so that the heating capacity is improved.

(Embodiment 7)
Next, control of the controller 30 of the indoor unit 50 of the air conditioner of Embodiment 7 will be described with reference to FIG. The structure and function of the air conditioner indoor unit 50 according to the present embodiment are substantially the same as the structure and function of the air conditioner indoor unit 50 according to the first embodiment described above. Of the configuration of the indoor unit 50 of the air conditioner of the embodiment, the difference from the configuration of the indoor unit 50 of the air conditioner of the first embodiment will be mainly described.

  As shown in FIG. 22, in the control of the controller 30 of the air conditioner of the present embodiment, first, in step S60, the maximum output cooling operation is executed in the cooling operation state, and the target and The set value of the room temperature or the temperature of the heat exchanger 7 to be set is set to the minimum value, and other normal specification operations are executed. Next, in step S61, the indoor air temperature or the temperature of the heat exchanger 7 specified by the signal transmitted from the indoor temperature sensor 40 or the heat exchanger temperature sensor 60 to the controller 30 is the target indoor temperature. Alternatively, it is determined whether or not the set value of the temperature of the heat exchanger 7 has been reached.

  In step S61, the indoor air temperature or the temperature of the heat exchange air 7 specified by the signal transmitted from the indoor temperature sensor 40 or the heat exchanger temperature sensor 60 to the controller 30 is the target indoor temperature or heat exchange. If it is determined that the set value of the temperature of the vessel 7 has been reached, the lower louver 3a and the lower damper 6 are closed in step S64. Note that the lower louver 3a is always open when it is opened and closed manually.

  On the other hand, in step S61, the temperature of the indoor temperature sensor 40 or the heat exchanger temperature sensor 60 specified by the signal transmitted from the indoor temperature sensor 40 or the heat exchanger temperature sensor 60 is the target indoor temperature or heat. If the set value of the temperature of the exchanger 7 has not been reached, the temperature of the indoor air specified by the signal transmitted from the indoor temperature sensor 40 or the heat exchanger temperature sensor 60 or the heat exchanger 7 is determined in step S62. It is determined whether or not a predetermined time has passed in a temperature state between a predetermined value whose temperature is higher than the set value and the set value.

  In step S62, those temperatures specified by the signal transmitted from the indoor temperature sensor 40 or the heat exchanger temperature sensor 60 are temperatures between a set value and a predetermined value, and a predetermined time or more has elapsed. For example, in step S64, the lower louver 3a and the lower damper 6 are closed.

  On the other hand, in step S62, those temperatures specified by the signal transmitted from the indoor temperature sensor 40 or the heat exchanger temperature sensor 60 are temperatures between a predetermined value higher than the set value and the set value, and the predetermined value. If the time has not elapsed, in step S63, the temperature specified by the signal transmitted from the indoor temperature sensor 40 or the heat exchanger temperature sensor 60 to the controller 30 is the target indoor temperature or heat exchanger. After the temperature set value of 7 is reached, it is determined whether or not a predetermined time has elapsed.

  In step S63, the temperature of the indoor air or the temperature of the heat exchanger 7 specified by the signal transmitted from the indoor temperature sensor 40 or the heat exchanger temperature sensor 60 to the controller 30 is the target indoor temperature or heat exchange. If the predetermined time has not elapsed after reaching the set value of the temperature of the vessel 7, the processing of step S60 to step S63 is repeated. On the other hand, in step S63, the indoor air temperature or the temperature of the heat exchanger 7 specified by the signal transmitted from the indoor temperature sensor 40 or the heat exchanger temperature sensor 60 to the controller 30 is the target indoor temperature or If the predetermined time has elapsed after reaching the set value of the temperature of the heat exchanger 7, the lower damper 6 and the lower louver 3a are closed in step S64.

  Generally, when cooling air is blown out from the lower outlet 3 for a long time during cooling operation, condensation may occur on the floor surface. However, according to the above-described configuration, when the room temperature reaches the set temperature, by closing the lower damper 6 and the lower louver 3a, the blowing of the cold air from the lower outlet 3 is stopped. The occurrence of dew condensation on the top can be prevented.

(Embodiment 8)
Next, control of the indoor unit of the air conditioner according to the eighth embodiment will be described with reference to FIG. The structure and function of the air conditioner indoor unit 50 according to the present embodiment are substantially the same as the structure and function of the air conditioner indoor unit 50 according to the first embodiment described above. Of the configuration of the indoor unit 50 of the air conditioner of the embodiment, the difference from the configuration of the indoor unit 50 of the air conditioner of the first embodiment will be mainly described.

  As shown in FIG. 23, in the control of the air conditioner of the present embodiment, first, in step S71, the heating operation state at the maximum output is set, and the operation of other normal specifications is executed. . Next, in step S72, it is determined whether the temperature of the indoor air specified by the indoor temperature sensor 40 or the heat exchanger temperature sensor 60 or the temperature of the heat exchanger 7 has reached a target temperature set value. Is done.

  In step S72, if the temperature of the indoor air specified by the indoor temperature sensor 40 or the heat exchanger temperature sensor 60 or the temperature of the heat exchanger 7 has not reached the target temperature setting value, the process of step S71 is performed. Repeated. On the other hand, in step S72, if the indoor air temperature specified by the indoor temperature sensor 40 or the heat exchanger temperature sensor 60 or the temperature of the heat exchanger 7 has reached the target temperature setting value, in step S73. The upper louver 1a and the upper damper 9 are closed.

  In general, warm air is easy to flow upward because the air density is low and light. According to the above configuration, when the temperature of the room space reaches or exceeds the set temperature, the temperature of the room air is made uniform by stopping the blowing of warm air from the upper outlet 1. Can be maintained.

  The air conditioner of each of the above embodiments is provided such that the posture can be changed so that the left side outlet 2b can be closed and the direction in which the wind blown from the left side outlet 2b flows can be changed. The left side lid member 20b and the right side lid member provided so that the right side outlet 2a can be closed and the posture can be changed so that the direction in which the wind blown from the right side outlet 2a flows can be changed. It is desirable to further include 20a.

  Moreover, it is desirable that the left side lid member 20b and the right side lid member 20a can be changed in posture according to the installation position of the air conditioner in the space whose temperature is adjusted by the air conditioner. .

  According to the said structure, it becomes possible to blow off wind effectively in the direction along an inner wall according to the installation position in the space of an air conditioner. Therefore, the temperature distribution in the indoor space can be made uniform by generating wind so as to wrap the entire indoor space using the Coanda effect. In addition, when the left side cover member 20b and the right side cover member 20a close the left side outlet 2b and the right side outlet 2a, respectively, the normal user can blow out the wind from the upper outlet 1 in a concentrated manner. It is possible to rapidly cool or heat the central portion of the indoor space where the occupants live. The left side lid member 20b and the right side lid member 20a are each changed in attitude according to a control signal from the controller 30 by a stepping motor or the like even if the attitude is manually changed. The same effect can be obtained by any configuration.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a front view of the indoor unit of the air conditioner of the embodiment. It is a left view of the indoor unit of the air conditioner of the embodiment. It is a figure which shows the internal structure of the indoor unit of the air conditioner of embodiment. It is a figure which shows the internal structure of the indoor unit of the air conditioner of embodiment. It is a cross-sectional schematic diagram for demonstrating a state when airflow is blowing from each of a left side blower outlet, a right side blower outlet, an upper blower outlet, and a lower blower outlet. It is a schematic diagram of the longitudinal section for demonstrating a state when airflow is blowing from each of a left side blower outlet, a right side blower outlet, an upper blower outlet, and a lower blower outlet. It is a schematic diagram of the cross section for demonstrating a state when airflow is blowing from only the left side blower outlet, the right side blower outlet, and the upper blower outlet. It is a schematic diagram of the longitudinal cross-section which shows the state from which the airflow is blown out only from the left side blower outlet, the right side blower outlet, and the upper blower outlet. It is a figure which shows typically the indoor unit of the air conditioner of embodiment. It is a figure which shows typically the indoor unit of the air conditioner of embodiment. It is a figure which shows typically the indoor unit of the air conditioner of embodiment. It is a figure which shows typically the indoor unit of the air conditioner of embodiment. It is a figure which shows typically the indoor unit of the air conditioner of embodiment. It is a figure for demonstrating the flow of the air of the indoor unit of the air conditioner of embodiment. It is a block diagram for demonstrating the system configuration | structure of the indoor unit of the air conditioner of embodiment. 4 is a flowchart for illustrating control of the indoor unit of the air conditioner according to the first embodiment. 6 is a flowchart for explaining control of the indoor unit of the air conditioner according to the second embodiment. 10 is a flowchart for illustrating control of an indoor unit of an air conditioner according to a third embodiment. 10 is a flowchart for illustrating control of an indoor unit of an air conditioner according to a fourth embodiment. 10 is a flowchart for illustrating control of an indoor unit of an air conditioner according to a fifth embodiment. 14 is a flowchart for illustrating control of an indoor unit of an air conditioner according to a sixth embodiment. 16 is a flowchart for illustrating control of an indoor unit of an air conditioner according to a seventh embodiment. 20 is a flowchart for illustrating control of an indoor unit of an air conditioner according to an eighth embodiment.

Explanation of symbols

  1 Upper outlet, 2a Right side outlet 2a Left side outlet, 3 Lower outlet, 4 Housing, 5 Fan, 6 Lower damper, 7 Heat exchanger, 8 Filter, 9 Upper damper, 16 Lower duct, 19 Upper Duct, 20 operation unit, 30 controller, 40 indoor temperature sensor, 50 indoor unit, 60 heat exchanger sensor, 100 indoor space, 100a ceiling surface, 100b floor surface, 100c wall surface.

Claims (14)

A housing,
A fan provided in the housing;
An upper outlet for discharging the airflow generated by the fan to the outside, provided on the front surface of the upper part of the housing;
A lower air outlet provided on the front of the lower portion of the housing, for discharging the airflow generated by the fan to the outside;
A left side outlet for discharging the airflow generated by the fan to the outside, provided in front of the left side of the housing;
A right side outlet for discharging the airflow generated by the fan to the outside, provided in front of the right side of the housing;
A suction port provided on the back surface of the housing, for guiding the airflow from the outside toward the fan;
An air conditioner provided with a heat exchanger that is provided in the housing and applies cold heat or heat to the airflow generated by the fan. A lower duct constituting a flow path between the fan and the lower outlet;
A lower damper provided in the lower duct;
A controller for controlling the fan and the damper,
The air conditioner according to claim 1, wherein the controller executes control to close the lower damper during cooling operation. A lower duct constituting a flow path between the fan and the lower outlet;
A lower damper provided in the lower duct;
A controller for controlling the fan and the damper,
The air conditioner according to claim 1, wherein the controller executes control to open the lower damper during heating operation. A lower duct constituting a flow path between the fan and the lower outlet;
A lower damper provided in the lower duct;
A controller for controlling the fan and the damper,
The air conditioner according to claim 1, wherein the controller executes control to close the lower damper during heating operation. A lower duct constituting a flow path between the fan and the lower outlet;
A lower damper provided in the lower duct;
A controller for controlling the fan and the damper,
2. The controller according to claim 1, wherein when the control is performed for the cooling operation at the maximum output, the controller performs a control to open the lower damper while setting the target indoor temperature to the lowest value. Air conditioner. A lower duct constituting a flow path between the fan and the lower outlet;
A lower damper provided in the lower duct;
An upper duct constituting a flow path between the fan and the upper outlet;
An upper damper provided in the duct;
A controller for controlling the fan, the lower damper, and the upper damper;
The air conditioner according to claim 1, wherein the controller performs control to open the upper damper and close the lower damper during cooling operation. A lower duct constituting a flow path between the fan and the lower outlet;
A lower damper provided in the lower duct;
An upper duct constituting a flow path between the fan and the upper outlet;
An upper damper provided in the duct;
A controller for controlling the fan, the lower damper, and the upper damper;
The air conditioner according to claim 1, wherein the controller performs control to open the upper damper and close the lower damper during heating operation. A lower duct constituting a flow path between the fan and the lower outlet;
A lower damper provided in the lower duct;
An upper duct constituting a flow path between the fan and the upper outlet;
An upper damper provided in the duct;
A controller for controlling the fan, the lower damper, and the upper damper;
The air conditioner according to claim 1, wherein the controller performs control to close the upper damper and open the lower damper during heating operation. A lower duct constituting a flow path between the fan and the lower outlet;
A lower damper provided in the lower duct;
An upper duct constituting a flow path between the fan and the upper outlet;
An upper damper provided in the duct;
A controller for controlling the fan, the lower damper, and the upper damper;
The controller executes control for opening both the lower damper and the upper damper while setting the target indoor temperature to the lowest value when executing control for cooling operation at the maximum output. The air conditioner according to claim 1. An indoor temperature sensor that measures the temperature of indoor air or a heat exchanger temperature sensor that measures the temperature of the heat exchanger;
When the controller controls to open both the lower damper and the upper damper while performing a cooling operation at the maximum output, the value of the room temperature detected by the room temperature sensor or the heat exchanger temperature sensor is If it becomes a value lower than the set value of the target indoor temperature or the temperature of the heat exchanger or is a value between the set value and the set value higher than the set value continuously for a predetermined time, the The air conditioner of Claim 9 which performs control which closes a lower damper. A lower duct constituting a flow path between the fan and the lower outlet;
A lower damper provided in the lower duct;
An upper duct constituting a flow path between the fan and the upper outlet;
An upper damper provided in the duct;
A controller for controlling the fan, the lower damper, and the upper damper;
When the controller is executing the control for the heating operation at the maximum output, the controller sets the target indoor temperature to the highest value and performs the control to open both the lower damper and the upper damper. The air conditioner according to claim 1. An indoor temperature sensor that measures the temperature of indoor air or a heat exchanger temperature sensor that measures the temperature of the heat exchanger;
The controller, when performing a control to open both the lower damper and the upper damper while performing the heating operation at the maximum output, the room temperature detected by the room temperature sensor or the heat exchanger temperature sensor or The air conditioner according to claim 11, wherein control is performed to close the upper damper when the value of the temperature of the heat exchanger exceeds a target indoor temperature or a set value of the temperature of the heat exchanger. A left side lid member provided to be able to change the posture so as to be able to change the direction in which the wind blown from the left side blower outlet flows while closing the left side blower outlet;
And further comprising a right side lid member that is capable of closing the right side outlet and capable of changing a posture so that a direction in which a wind blown from the right side outlet flows can be changed. Item 2. An air conditioner according to Item 1.   The posture of the left side lid member and the right side lid member can be changed according to the installation position of the air conditioner in a space whose temperature is adjusted by the air conditioner, respectively. The air conditioner described.

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