JP6599000B2 - Air conditioner indoor unit - Google Patents

Description

  The present invention relates to an indoor unit of an air conditioner that includes a wind direction plate and has a configuration in which the direction of airflow can be confirmed when the wind direction is set.

  In general, an indoor unit of an air conditioner houses an air blowing unit and a heat exchange unit, and includes a suction port, an air outlet, and a wind direction plate rotatably disposed at the air outlet. Conventionally, as a wind direction display function, a structure such as a strip sheet or a guide wing is attached to an outlet of an indoor unit so that a user can easily confirm the wind direction. However, in such an air conditioner indoor unit, the appearance of the indoor unit is damaged due to dirt and deterioration of the attached structure, and the range in which the wind direction can be confirmed is extremely limited to the vicinity of the indoor unit There is.

  Some air conditioner indoor units use visible light as a wind direction display means other than those described above (for example, see Patent Document 1). Patent Document 1 discloses a technique for expanding a range in which a wind direction is recognized by a user by projecting visible light so as to scan a diffusion region of a blowing airflow.

Japanese Patent Publication No. 6-74916

  Although the laser beam can be projected onto an object to be irradiated such as a floor surface or a wall surface using the technique of Patent Document 1, generally, the laser beam is displayed only as a point on the object to be irradiated. For this reason, when the user tries to adjust the air direction of the indoor unit of the air conditioner, it may be difficult to find the laser beam displayed as a dot in a bright place such as the daytime. For example, in sales promotions where air conditioner functions are introduced at stores or exhibition halls, the venues are often brighter than a certain level in order to ensure safety during traffic. As a result, even if the wind direction display means of Patent Document 1 is used, the specifications relating to the wind direction may not be sufficiently transmitted to the audience.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an indoor unit of an air conditioner in which the arrival position of air blown out from the indoor unit can be easily recognized.

An indoor unit of an air conditioner according to the present invention includes a main body in which an inlet and an outlet are formed, a heat exchanger that is disposed in the main body and exchanges heat with air sucked from the inlet, and the heat A blower that blows out air that has undergone heat exchange in the exchanger from the outlet, and a blower direction that is installed at the outlet so as to be pivotable up and down , and blows out the air that has been heat-exchanged by the heat exchanger , is set in the vertical direction. and horizontal flaps which, by projecting light along a blowing direction of the air that has been set by the horizontal flaps, in which and a main laser device for irradiating a linear main laser line extending in the lateral direction.

  According to the indoor unit of the air conditioner of the present invention, the linear laser line is irradiated on the floor surface or the wall surface and moves with the air blowing direction, so that the user can visually recognize the arrival position of the blown air. Easy to recognize.

It is a perspective view of the indoor unit in this Embodiment 1. FIG. It is sectional drawing which shows the structure of the indoor unit in this Embodiment 1. It is the schematic diagram which showed an example of the main laser line in this Embodiment 1. FIG. It is the schematic diagram which showed an example of the sublaser line in this Embodiment 1. FIG. It is the schematic diagram which showed an example of the combination of the laser line in this Embodiment 1. FIG. It is a schematic diagram which shows the example of installation of the main laser apparatus in this Embodiment 1. FIG. It is the schematic diagram which showed an example of the adjusted main laser line in this Embodiment 1. FIG. It is a functional block diagram of the control apparatus in this Embodiment 1. It is a flowchart which shows the control at the time of the wind direction adjustment in this Embodiment 1. FIG.

Embodiment 1 FIG.
Based on FIG.1 and FIG.2, the structure of the indoor unit which concerns on this Embodiment is demonstrated. FIG. 1 is a perspective view of the indoor unit in the present embodiment. FIG. 2 is a cross-sectional view showing the structure of the indoor unit in the present embodiment. Note that the indoor unit in FIG. 1 is connected to an outdoor unit (not shown) through a refrigerant pipe to form a refrigerant circuit.

  The indoor unit 10 has a main body 9, a heat exchanger 3 and a blower 4 disposed in the main body 9, and is installed in an air-conditioning target space. A suction port 1 is formed in the upper part of the main body 9, and a blower outlet 2 is formed in the lower part. The main body 9 forms an air passage that connects the suction port 1 and the blower outlet 2. The indoor unit 10 includes a wind direction adjusting mechanism and a wind direction display mechanism that are disposed at the air outlet 2.

  The heat exchanger 3 is installed in the air path, and is composed of, for example, a fin-and-tube heat exchanger. The heat exchanger 3 includes a plurality of aluminum fins arranged in parallel and a pipe inserted so as to meander through the plurality of aluminum fins, and exchanges heat between the refrigerant in the pipe and the air. To do. The blower 4 is configured by, for example, a cross flow fan or the like, takes air from the suction port 1, passes the heat exchanger 3, and blows it out from the blower outlet 2.

  The wind direction adjusting mechanism adjusts the blowing direction of the air blown from the indoor unit 10 to the indoor space that is the air-conditioning target space. The wind direction adjusting mechanism includes a wind direction plate 21 such as an up / down wind direction plate 21A and a left / right wind direction plate 21B, and an up / down wind direction plate support portion 22 and a left / right wind direction plate support portion 23 that connect the wind direction plate 21 and the main body 9.

  The up / down wind direction plate 21 </ b> A is installed at the outlet 2 formed in the main body 9 via the up / down wind direction plate support portion 22 so as to be vertically rotatable. A motor or the like is connected to the up / down wind direction plate support section 22, and the up / down wind direction plate support section 22 is rotated by the motor so that the up / down wind direction plate 21 </ b> A is rotated up and down. The air heat-exchanged by the heat exchanger 3 is guided along the up / down airflow direction plate 21A from the upstream side which is the blower outlet 2 side toward the downstream side which is the indoor space side. Therefore, when the inclination of the up / down wind direction plate 21A changes, the up / down direction of the air blown into the indoor space is set accordingly.

  A plurality of left and right wind direction plates 21 </ b> B are installed at the air outlet 2 formed in the main body 9 through the left and right wind direction plate support portions 23 so as to be rotatable left and right. Further, the plurality of left and right wind direction plates 21B are rotatably joined to the connecting rods and are connected to each other. A motor or the like is connected to the connecting rod, and when the connecting rod is moved left and right by the motor, the plurality of left and right wind direction plates 21B rotate left and right around the left and right wind direction plate support portions 23 while maintaining a parallel state to each other. Moved. The air heat-exchanged by the heat exchanger 3 is guided along the left and right wind direction plates 21B from the upstream side toward the downstream side. Therefore, when the inclination of the left and right wind direction plates 21B changes, the right and left blowing direction of the air blown into the indoor space is set accordingly.

  The wind direction display mechanism irradiates a linear laser line on the floor surface or wall surface of the air-conditioning target space so that the user can easily visually recognize the air blowing direction adjusted by the wind direction adjusting mechanism. The wind direction display mechanism includes laser devices such as the main laser device 31 and the sub laser device 32.

  The main laser device 31 and the sub laser device 32 are composed of, for example, a line laser. The main laser device 31 is installed in the vicinity of the up-and-down air direction plate 21A, and indicates the arrival position in the up-and-down direction of the airflow blown into the indoor space. The auxiliary laser device 32 is installed in the vicinity of the left and right wind direction plates 21B, and indicates the arrival position in the left and right direction of the blown airflow.

  The line laser can project diffused light diffused linearly by transmitting laser light emitted from a light source through a collimating lens and a cylindrical rod lens. When the diffused light is projected onto an object to be irradiated such as a wall surface, ceiling, or floor surface, a linear laser line is irradiated onto the object to be irradiated. The lens for generating the diffused light is not limited to the rod lens as long as it can extract linear rays. Since the direction in which the laser light is diffused is determined by the arrangement of the lenses in the laser device, the main laser device 31 is preferably installed so that the diffusion direction of the diffused light and the longitudinal direction of the up / down wind direction plate 21A are parallel. The sub laser device 32 is preferably installed so that the diffusion direction of the diffused light is parallel to the vertical direction of the left and right wind direction plates 21B.

  In FIG. 2, the main laser device 31 is installed on the up / down wind direction plate 21A, and the sub laser device 32 is installed on the left / right wind direction plate 21B. In the indoor unit 10 configured as described above, when the fan of the blower 4 rotates during operation, air is sucked from the suction port 1, heat is exchanged by the heat exchanger 3, and discharged from the blower outlet 2 to the outside. At this time, when the inclination of the up / down airflow direction plate 21 </ b> A is changed upward, the blowing direction of the air exchanged by the heat exchanger 3 also becomes upward. Further, when the inclination of the up / down airflow direction plate 21A is changed downward, the blowing direction of the air exchanged by the heat exchanger 3 also becomes downward.

  The main laser device 31 projects light along the air blowing direction set by the up / down wind direction plate 21A. For example, the main laser device 31 projects linear diffused light that is parallel to the longitudinal direction of the up-and-down air direction plate 21A along an extension line connecting the upstream side and the downstream side of the up-and-down air direction plate 21A. At this time, the main laser device 31 projects diffused light extending in the left-right direction (arrow X direction) in front of the indoor unit 10.

  FIG. 3 is a schematic diagram showing an example of the main laser line in the present embodiment. As shown in FIG. 3, the floor is irradiated with a linear main laser line 33 extending left and right to indicate the arrival position of the airflow. The broken line indicates the air current blown out by the wind direction plate 21.

  Similarly, when the left / right wind direction plate 21B is rotated by the connecting rod during operation and the inclination is changed to the left, the blowing direction of the air exchanged by the heat exchanger 3 is also turned to the left, and the blown air Supplied to the left side of the machine 10. When the inclination of the left / right airflow direction plate 21 </ b> B is changed to the right, the blowing direction of the air exchanged by the heat exchanger 3 is also turned to the right, and the blown air is supplied to the right side of the indoor unit 10.

  The auxiliary laser device 32 projects light along the air blowing direction set by the left and right wind direction plates 21B. For example, the auxiliary laser device 32 projects linear diffused light that is parallel to the vertical direction of the left and right wind direction plate 21B along an extension line connecting the upstream side and the downstream side of the left and right wind direction plate 21B. At this time, the sub laser device 32 projects diffused light extending in the vertical direction (arrow Z direction) in front of the indoor unit 10.

  FIG. 4 is a schematic diagram showing an example of the sub laser line in the present embodiment. As shown in FIG. 4, the floor surface is irradiated with a secondary laser line 34 extending in the depth direction (arrow Y direction) in front of the indoor unit 10 to indicate the arrival position of the airflow. In FIG. 4, two sub-laser lines 34 irradiated when the sub-laser devices 32 are respectively installed on the leftmost left-right wind direction plate 21 </ b> B and the rightmost left-right wind direction plate 21 </ b> B among the plurality of left-right wind direction plates 21 </ b> B. It is shown.

  FIG. 5 is a schematic diagram showing an example of a combination of laser lines in the present embodiment. The wind direction display mechanism can irradiate the floor with a combination of a plurality of laser lines by the main laser device 31 and the sub laser device 32. Therefore, the user can recognize a more specific air supply area.

  FIG. 6 is a schematic diagram showing an installation example of the main laser device according to the first embodiment. Based on FIG. 6, a configuration in the case where the main laser device 31 is installed on the up / down wind direction plate support portion 22 will be described. The up / down wind direction plate support portion 22 is installed to be locked to the up / down wind direction plate 21A, and interlocks with the up / down wind direction plate 21A. The vertical wind direction plate support portion 22 is provided with a bearing 22a for holding the main laser device 31.

  The main laser device 31 has a rotation axis extending in the longitudinal direction of the up / down airflow direction plate 21A, and the projection angle is adjusted in the up / down direction by being rotated around the rotation axis. For example, the main laser device 31 includes a main laser device main body 31a that includes a laser light source, a lens, and the like and has an emission port, and a rotation adjustment unit 31b that rotates the main laser device 31 about a rotation axis. . For example, as shown in FIG. 6, the main laser device main body 31a and the rotation adjustment unit 31b each have a cylindrical shape, and the main laser device main body 31a and the rotation adjustment unit 31b are connected to form an L shape. ing. The main laser device 31 is installed on the vertical airflow direction plate support portion 22 by the rotation adjusting portion 31b being held by the bearing 22a so as to be along the longitudinal direction of the vertical airflow direction plate 21A.

  FIG. 6 includes an X axis, a Y axis, and a Z axis with the intersection point of the cylindrical axis of the main laser device main body 31a and the cylindrical axis of the rotation adjusting unit 31b as the origin O in order to explain the method of adjusting the projection angle. An orthogonal coordinate system is shown. The X axis of the orthogonal coordinate system corresponds to the arrow X direction of the indoor unit 10, the Y axis of the orthogonal coordinate system corresponds to the arrow Y direction of the indoor unit, and the Z axis of the orthogonal coordinate system corresponds to the arrow Z direction of the indoor unit 10. Yes. In this case, the rotation axis is a cylindrical axis of the rotation adjusting unit 31b, and is arranged along the X axis. FIG. 6 shows a direction α that passes through the origin O and is parallel to the inclination of the up-and-down air direction plate 21A and from the upstream side to the downstream side of the up-and-down air direction plate 21A. When the rotation adjusting unit 31b is rotated in the direction of the rotation A around the X axis, for example, the point B of the emission port of the main laser device main body 31a is rotated in the direction indicated by the arrow in the drawing around the origin O. The That is, when the rotation adjusting unit 31b is rotated clockwise from the position shown in FIG. 6, the main laser device body 31a is tilted upward from the original direction α around the origin O. Therefore, by rotating the rotation adjusting unit 31b, it is possible to further adjust the light projection angle from the state interlocked with the up / down wind direction plate 21A. The rotation adjusting unit 31b is held by the bearing 22a at the adjusted position.

  FIG. 7 is a schematic diagram showing an example of the adjusted main laser line in the first embodiment. The main laser line 33 in FIG. 7 is the one in which the diffused light of the main laser device 31 is projected so as to be parallel to the up / down wind direction plate 21A in the direction α, that is, toward the downstream side of the air flow, and irradiated to the floor surface. is there. Further, the main laser line 33a indicates a laser line that has moved the floor surface away from the indoor unit 10 when the rotation adjusting unit 31b is rotated in the rotation direction A in FIG.

  Since the main laser device 31 is held by the bearing 22a, the main laser device 31 has a gap between the upper and lower wind direction plates 21A, and can project light upward or downward from the direction α. . When the rotation adjusting unit 31 b is rotated in the direction opposite to the rotation direction A from the position shown in FIG. 6, the diffused light is projected downward from the direction α and closer to the indoor unit 10 than the main laser line 33. The main laser line 33b is irradiated to the position of the floor surface.

  Based on FIG. 8, the structure in the case where the wind direction display mechanism is automatically controlled will be described. FIG. 8 is a functional block diagram of the control device according to the first embodiment. The indoor unit 10 further includes a laser driving device 38 and a control device 50. The laser drive device 38 has, for example, a drive shaft connected to the rotation adjusting unit 31b and a motor that rotates the drive shaft, and rotates the main laser device 31 around the rotation shaft. The laser drive device 38 is installed in the main body 9, for example. The indoor unit 10 may further include a temperature sensor 70 that is installed in the heat exchanger 3 and measures the temperature of the heat exchanger, or may include an operation unit 60 such as a remote control. The temperature sensor 70 may be installed in a pipe or the like of the heat exchanger 3 and measure the refrigerant temperature in the pipe. The control device 50 is configured by, for example, a microcomputer and performs operation control based on operation commands and settings input via the operation unit 60, temperature information measured by the temperature sensor 70, and the like. The control device 50 includes operation control means 51, wind direction display control means 52, and storage means 55.

  The operation control means 51 performs control determined in advance according to signals transmitted from the operation unit 60, the temperature sensor 70, and the like. For example, when the operation mode such as cooling, heating, or blowing is selected by the operation unit 60, the operation control unit 51 acquires control information corresponding to the selected operation mode from the storage unit 55, and the blower is based on the control information. 4 and a signal for adjusting the inclination of the up-and-down wind direction plate 21A and the left and right wind direction plate 21B are transmitted to the control target device.

  The wind direction display control means 52 acquires the control information stored in the storage means 55 according to the setting, operation command or temperature information received from the operation control means 51, and the main laser device 31, the laser drive device 38, and the sub laser. The device 32 is controlled. Specifically, the wind direction display control means 52 turns on or off the power sources of the main laser device 31 and the sub laser device 32 and transmits a drive signal for adjusting the projection angle to the laser drive device 38.

  The storage means 55 includes, for example, the blower 4 associated with the temperature or operation mode of the heat exchanger 3, the up / down wind direction plate 21A, the left / right wind direction plate 21B, the main laser device 31, the sub laser device 32, the laser drive device 38, and the like. The control information is stored. The storage means 55 stores a correction value of the projection angle of the main laser device 31, and the correction value is used for angle adjustment of the main laser device 31 via the laser driving device 38.

  The correction value of the light projection angle may be stored in association with the temperature of the heat exchanger 3, or may be stored in association with the operation mode. In general, a low temperature gas has a property of staying at a lower position than a high temperature gas, and a high temperature gas has a property of staying at a higher position than a low temperature gas. Therefore, the air flow blown out from the indoor unit 10 has different positions on the floor surface or wall surface because the low-temperature gas flows downward and the high-temperature gas flows upward even when the up-and-down wind direction plate 21A has the same inclination. To reach. The correction value of the projection angle is for correcting the deviation of the irradiation position of the main laser line 33 due to such a difference in the arrival position, and the main laser device 31 is adjusted to the projection angle to which the correction value is applied. Thus, the irradiation position of the main laser line 33 is corrected.

  A description will be given of a case where the cooling correction value θC corresponding to the cooling operation and the heating correction value θH corresponding to the heating operation are stored in the storage unit 55 as the light projection angle correction value. In FIG. 7, the vertical blowing angle formed by the direction α representing the inclination of the vertical wind direction plate 21 </ b> A indicated by the solid line arrow and the downward straight line in the Z direction indicated by the dotted line is the light projection applied to the main laser device 31. Since this is a reference for determining the angle θL, it will be referred to as a reference angle θP hereinafter. When air is blown out directly below the arrow Z direction, the reference angle θP is 0 degree. The wind direction display control means 52 acquires information on the reference angle θP from the operation control means 51 and determines the light projection angle θL to be applied to the main laser device 31 based on the reference angle θP. As described above, since the airflow varies depending on the temperature of the blown air, the blown air is supplied to a low position during the cooling operation and supplied to a high position during the heating operation. Therefore, the wind direction display control means 52 determines the projection angle θL so as to be smaller than the reference angle θP during the cooling operation, and adjusts the projection angle so as to be larger than the reference angle θP during the heating operation. The cooling correction value θC and the heating correction value θH are, for example, an angle of 1 to 2 degrees, but may be obtained through experiments or the like.

  In addition, the temperature of the airflow supplied at the time of air conditioning changes with the state of the refrigerant | coolant which circulates through the inside of the heat exchanger 3, or the rotation speed of the air blower 4. Therefore, the irradiation direction of the main laser device 31 may be adjusted up and down based on temperature information measured by the temperature sensor 70 and the like. When the projection angle is adjusted based on the temperature of the heat exchanger 3, for example, a correction table in which the temperature of the heat exchanger and the correction value of the projection angle are associated with each other is stored in the storage unit 55. The wind direction display control unit 52 is configured to acquire a correction value corresponding to the temperature measured by the temperature sensor 70 from the correction table and determine the light projection angle θL based on the acquired correction value and the reference angle θP. It only has to be done. In this case, the light projection angle may be determined to be smaller as the measured temperature of the heat exchanger 3 is lower, and the light projection angle may be determined to be larger as the measured temperature of the heat exchanger 3 is higher.

  FIG. 9 is a flowchart showing control during wind direction adjustment in the first embodiment. The control of FIG. 9 is started by the control device 50 when setting of the wind direction adjustment is performed via the operation unit 60, for example. FIG. 9 shows the case where the projection angle is adjusted according to the operation mode such as cooling and heating.

  When the operation control unit 51 receives an operation command related to wind direction adjustment, the operation control unit 51 transmits an operation mode and the like to the wind direction display control unit 52 together with the operation command. The wind direction display control means 52 turns on the laser power of the main laser device 31 and the two sub laser devices 32 (step ST101). The floor surface or the wall surface is irradiated with a main laser line 33 and two sub laser lines 34 as shown in FIG. Next, the wind direction display control means 52 determines whether the received operation mode is a heating operation or a cooling operation (step ST102). When it is determined by the wind direction display control means 52 that the heating operation is being performed (step ST102; YES), the operation control means 51 determines the vertical angle of the vertical wind direction plate 21A and a plurality of left and right wind directions based on the operation command. The angle in the left-right direction of the plate 21B is changed (step ST103). Next, the wind direction display control means 52 acquires the angle set to the up-and-down wind direction plate 21A, that is, the reference angle θP from the operation control means 51 (step ST104), and the heating time correction value associated with heating from the storage means 55. θH is acquired (step ST105). In the configuration in which the projection angle is adjusted based on the temperature of the heat exchanger 3, the wind direction display control unit 52 acquires temperature information of the temperature measured by the temperature sensor 70 from the operation control unit 51, and What is necessary is just to acquire the correction value according to temperature with reference to a correction table.

  Next, the wind direction display control means 52 adds the heating correction value θH to the reference angle θP to determine the projection angle θL (step ST106). The wind direction display control unit 52 controls the laser driving device 38 so that the projection angle of the main laser device 31 becomes the determined projection angle θL. That is, the wind direction display control means 52 adjusts the light projection angle of the main laser apparatus 31 (step ST107). The position of the main laser line 33 irradiated on the floor surface is corrected, and the position moves away from the indoor unit 10 as the main laser line 33a in FIG.

  Further, the operation control means 51 determines whether or not a new operation command related to the wind direction setting has been received (step ST108). If it is determined that the operation command has been received (step ST108; YES), the operation control means 51 returns to step ST103 again. The angle of the wind direction plate 21 is changed. Subsequently, the wind direction display control means 52 repeats the processing from step ST104 to step ST107. On the other hand, when there is no new operation command regarding the wind direction setting (step ST108; NO), the operation control means 51 determines whether or not the elapsed time has exceeded a predetermined time (step ST109). If the elapsed time does not exceed the predetermined time (step ST109; NO), the operation control means 51 returns to step ST105 again, and the wind direction display control means 52 performs the processing from step ST105 to step ST107. Therefore, in the configuration in which the projection angle is adjusted based on the temperature of the heat exchanger 3, the projection angle is adjusted with a correction value corresponding to the temperature that changes over time. Until the predetermined time elapses, the operation control means 51 or the wind direction display control means 52 repeats the processing from step ST103 to step ST109. If the predetermined time has elapsed without receiving a new operation command related to the wind direction setting (step ST109; YES), the operation control means 51 ends the power supply to both the main laser device 31 and the sub laser device 32 (step). ST110).

  On the other hand, when it is determined by the wind direction display control means 52 that it is not in the heating operation (step ST102; NO) and is in the cooling operation (step ST112; YES), the operation control means 51 moves up and down based on the operation command. The angle in the vertical direction of the wind direction plate 21A and the angle in the horizontal direction of the plurality of left and right wind direction plates 21B are changed (step ST113). Next, the wind direction display control means 52 acquires the angle set for the up / down wind direction plate 21A, that is, the reference angle θP from the operation control means 51 (step ST114), and the cooling correction value associated with the cooling from the storage means 55. θC is acquired (step ST115). In the configuration in which the light projection angle is adjusted based on the temperature of the heat exchanger 3, the wind direction display control unit 52 may acquire a correction value corresponding to the temperature as in step ST105.

  Next, the wind direction display control means 52 subtracts the cooling correction value θC from the reference angle θP to determine the projection angle θL (step ST116). The wind direction display control unit 52 controls the laser driving device 38 so that the projection angle of the main laser device 31 becomes the determined projection angle θL. That is, the wind direction display control means 52 adjusts the light projection angle of the main laser device 31 (step ST117). The position of the main laser line 33 irradiated on the floor surface is corrected, and moves toward the indoor unit 10 like the main laser line 33b in FIG.

  The operation control means 51 determines whether or not an operation command relating to the wind direction setting is newly received via the operation unit 60 or the like (step ST118). When it is determined that the operation command is received (step ST118; YES), Returning to step ST113 again, the angle of the wind direction plate 21 is changed. Subsequently, the wind direction display control means 52 repeats the processing from step ST114 to step ST117. In the cooling operation, the operation control means 51 determines whether or not the wind direction setting has been changed (step ST118) and whether a predetermined time has elapsed (step ST119). Step ST118 and step ST119 correspond to step ST108 and step ST109, respectively. When a predetermined time has elapsed without receiving a new operation command related to the wind direction setting (step ST119; YES), the operation control means 51 ends the power supply to both the main laser device 31 and the sub laser device 32 ( Step ST110).

  When it is determined by the wind direction display control means 52 that the heating operation or the cooling operation is not performed (step ST112; NO), the operation control means 51 determines the vertical angle of the vertical air direction plate 21A based on the operation command, and The angle in the left-right direction of the plurality of left and right wind direction plates 21B is changed (step ST123). Next, the wind direction display control means 52 acquires the angle set to the up / down wind direction plate 21A, that is, the reference angle θP from the operation control means 51 (step ST124), and determines the projection angle θL as the reference angle θP (step ST126). ). The wind direction display control unit 52 controls the laser driving device 38 so that the projection angle of the main laser device 31 becomes the determined projection angle θL, that is, the reference angle θP. That is, the wind direction display control means 52 adjusts the light projection angle of the main laser apparatus 31 (step ST127). The diffused light from the main laser device 31 is projected in parallel with the inclination of the up / down wind direction plate 21 </ b> A and is irradiated onto the floor surface or the wall surface as the main laser line 33.

  The operation control means 51 determines whether or not a new operation command relating to wind direction setting has been received via the operation unit 60 or the like (step ST128). If it is determined that the operation command has been received (step ST128; YES), Returning to step ST123 again, the angle of the wind direction plate 21 is changed. Subsequently, the wind direction display control means 52 repeats the processing from step ST124 to step ST127. As in the heating operation, the operation control means 51 determines whether or not the wind direction setting has been changed (step ST128) and determines whether a predetermined time has elapsed (step ST129). Step ST128 and step ST129 correspond to step ST108 and step ST109, respectively. If the predetermined time has elapsed without receiving a new operation command related to the wind direction setting (step ST129; YES), the operation control means 51 ends the power supply to both the main laser device 31 and the sub laser device 32 ( Step ST110).

  As described above, in the present embodiment, the indoor unit 10 of the air conditioner includes the main body 9 in which the suction port 1 and the air outlet 2 are formed, the air and heat that is disposed in the main body 9 and is sucked from the suction port 1. The heat exchanger 3 to be exchanged, the blower 4 that blows out the air heat-exchanged in the heat exchanger 3 from the blowout port 2, and the air that is rotatably installed in the blowout port 2 and is heat-exchanged by the heat exchanger 3 A wind direction plate 21 for setting the blowing direction for blowing air, and a laser device for projecting light along the air blowing direction set by the wind direction plate 21 and irradiating a linear laser line.

  Thus, the arrival position of the air blown out from the indoor unit 10 is indicated by the irradiated laser line. Accordingly, the user can easily visually recognize the relationship between the direction of the wind direction plate 21 and the arrival position of the blown air, and easily adjust the wind direction.

  The wind direction plate 21 includes an up and down wind direction plate 21A that is installed at the air outlet 2 so as to be rotatable up and down and sets the blow direction in which the air exchanged heat by the heat exchanger 3 is blown up and down. It may include a main laser device 31 that projects light along a blowing direction set by the up-and-down air direction plate 21A and irradiates a linear main laser line 33 extending in the left-right direction.

  Thus, when the inclination of the up / down wind direction plate 21A is changed, the main laser line 33 moves in the up / down direction. Since the main laser line 33 extends in the left-right direction with respect to the vertical movement direction, the arrival position of the blown air is shown in a wider range at a time compared to the case where a point-like laser beam is employed as in the prior art. It is. As a result, the appearance of the indoor unit 10 is not impaired, and the indoor unit 10 can show the specifications related to the wind direction to the audience in situations such as sales promotion.

  The main laser device 31 may be installed on the up / down wind direction plate 21A. As a result, the main laser device 31 is interlocked with the up-and-down airflow direction plate 21A, so that no special drive device is required and the main laser line 33 is irradiated in the blowing direction.

  The indoor unit 10 of the air conditioner further includes an up / down air direction plate support portion 22 that connects the main body 9 and the up / down air direction plate 21A at the air outlet 2, and the main laser device 31 is installed on the up / down air direction plate support portion 22. It may be a thing. As a result, the vertical wind direction plate 21A rotates as the vertical wind direction plate support portion 22 rotates, so that the main laser device 31 is interlocked with the vertical wind direction plate 21A. Compared with the case where the main laser device 31 is directly installed on the up-and-down air direction plate 21A, the main laser device 31 is installed at a position closer to the driving portion, so that deflection or vibration of the up-and-down air direction plate 21A due to the weight of the main laser device 31 can be suppressed.

  The main laser device 31 may have a rotary shaft extending in the longitudinal direction of the up / down airflow direction plate 21A, and the light projection angle may be adjusted in the vertical direction by rotating around the rotary shaft.

  Accordingly, the main laser device 31 can project the diffused light not only along the blowing direction but also at a light projection angle adjusted in the vertical direction. Therefore, the user can adjust the irradiation position of the main laser line 33 when there is a gap between the inclination and the arrival position of the up / down wind direction plate 21A and the like.

  The indoor unit 10 of the air conditioner includes a laser driving device 38 that rotates the main laser device 31 around the rotation axis, a control device that controls the rotation of the up / down airflow direction plate 21A, the blower 4, and the laser driving device 38. 50, and the control device 50 determines the projection angle θL based on the blowing angle of the up-and-down air direction plate 21A, and the laser driving device 38 rotates the main laser device 31 to the determined projection angle θL. It may be allowed.

  Thereby, the projection angle of the main laser device 31 is automatically adjusted. Further, if the light projection angle θL is handled as an absolute value, the main laser device 31 does not need to be installed in a place interlocking with the up / down wind direction plate 21A, and is freely installed in a place where the diffused light is not blocked. May be.

  Moreover, the temperature sensor 70 which measures the temperature of the heat exchanger 3 is further provided, and the control apparatus 50 determines the light projection angle θL based on the blowing angle of the up-and-down air direction plate 21A and the temperature measured by the temperature sensor 70. The laser driving device 38 may be adjusted by rotating the main laser device 31 to the determined projection angle θL. From this, the control apparatus 50 can show the arrival position where the difference in the weight by the temperature of the blown-out air is considered.

  Further, during the cooling operation, the control device 50 determines the projection angle θL so as to be smaller than the blowing angle of the up-and-down air direction plate 21A, and the laser driving device 38 rotates the main laser device 31 to the determined projection angle θL. May be adjusted. Thus, the main laser line 33b is irradiated to a position closer to the indoor unit 10 than the position where the extension line in the blowing direction intersects the irradiated object. Therefore, the position accuracy for displaying the arrival position is improved.

  Further, the control device 50 determines the projection angle θL so that it is larger than the blowing angle of the up / down wind direction plate 21A during the heating operation, and the laser driving device 38 rotates the main laser device 31 to the determined projection angle θL. May be adjusted. Thus, the main laser line 33a is irradiated to a position away from the indoor unit 10 from the position where the extension line in the blowing direction intersects the irradiated object. Therefore, the position accuracy for displaying the arrival position is improved.

  The wind direction plate 21 includes a plurality of left and right wind direction plates 21B that are installed at the air outlet 2 so as to be rotatable in the left and right direction and that set the blow direction in which the air exchanged heat by the heat exchanger 3 is blown in the left and right directions. Includes a secondary laser device 32 that is installed on the left and right wind direction plate 21B, projects light along the blowing direction set by the left and right wind direction plate 21B, and irradiates a linear secondary laser line 34 extending in the vertical direction. May be.

  Thus, the sub laser device 32 can indicate the arrival position of the air in the left-right direction. Further, when the main laser device 31 and the sub laser device 32 are used in combination, a plurality of laser lines extending in the vertical direction and the horizontal direction are irradiated, so that the indoor unit 10 allows the user to determine the reach range of the blown air. It can be shown for easy visual recognition.

  For example, the control device 50 may perform the wind direction display control when the air-conditioning operation is started in addition to the case where the operation command related to the wind direction adjustment illustrated in FIG. 9 is received. The operation unit 60 may include a wind direction display button, and the control device 50 may perform wind direction display control when the wind direction display button is pressed.

  In the configuration in which the projection angle is automatically corrected by the control device 50 as shown in FIG. 9, the projection angle θL is determined and adjusted as an absolute value, so that the main laser device 31 has the vertical wind direction plate 21A. It does not have to be installed in a place linked to The main laser device 31 may be installed in a place where the diffused light is not blocked.

  In the present embodiment, the rotation adjustment unit 31b has been described as having a cylindrical shape. However, the shape may be any shape as long as the inclination of the main laser device body 31a can be easily adjusted, and is not particularly limited to this shape. . In addition, when the main laser device 31 is configured in an L shape as in the present embodiment, the main laser device can be provided by providing a connection portion that holds the outer periphery of the main laser device main body 31a in the rotation adjusting unit 31b. The main body 31a can rotate around the Y axis, and the main laser line 33 can be calibrated in two axes. Accordingly, the user can adjust the line of the main laser line 33 to the air arrival position when the main laser line 33 is inclined to the left and right, for example, when the indoor unit 10 is installed.

  Furthermore, the laser device can change the line length of the laser line, and may be configured to irradiate a laser line having a line length corresponding to the air blowing range.

  DESCRIPTION OF SYMBOLS 1 Inlet, 2 Outlet, 3 Heat exchanger, 4 Air blower, 9 Main body, 10 Indoor unit, 21 Wind direction plate, 21A Vertical wind direction plate, 21B Left and right wind direction plate, 22 Vertical wind direction plate support part, 22a Bearing, 23 Left and right wind direction Plate support section, 31 main laser apparatus, 31a main laser apparatus main body, 31b rotation adjusting section, 32 sub laser apparatus, 33, 33a, 33b main laser line, 34 sub laser line, 38 laser driving apparatus, 50 control apparatus, 51 operation Control means, 52 wind direction display control means, 55 storage means, 60 operation unit, 70 temperature sensor, θH heating correction value, θC cooling correction value, θP reference angle (blowing angle), θL projection angle.

Claims (10)

A main body formed with an inlet and an outlet;
A heat exchanger arranged in the main body and exchanging heat with air sucked from the suction port;
A blower that blows out air that has been heat-exchanged in the heat exchanger from the outlet;
Said outlet vertically rotatably installed, a vertical airflow direction plate to set the blowing direction blowing air which has been heat-exchanged in the vertical direction by the heat exchanger,
An indoor unit of an air conditioner, comprising: a main laser device that projects light along a blowing direction of air set by the up-and-down wind direction plate and irradiates a linear main laser line extending in the left-right direction . The indoor unit of an air conditioner according to claim 1 , wherein the main laser device is installed on the up-and-down wind direction plate. An upper and lower airflow direction plate support part for connecting the main body and the upper and lower airflow direction plate at the air outlet;
The indoor unit of an air conditioner according to claim 1 , wherein the main laser device is installed on the up-and-down airflow direction plate support part. Said main laser device, said has a rotational axis extending in the longitudinal direction of the horizontal flaps, according to claim 3, wherein the projection angle of projection light by being rotated about the axis of rotation is adjusted in the vertical direction Air conditioner indoor unit. A laser driving device for rotating the main laser device around the rotation axis;
A control device for controlling the rotation of the up-and-down air direction plate, the blower, and the laser driving device;
The control device determines a light projection angle based on a blowing angle of the up and down wind direction plate,
The indoor unit of an air conditioner according to claim 4 , wherein the laser driving device rotates the main laser device to the determined projection angle. Further comprising a temperature sensor for measuring the temperature of the heat exchanger,
The control device determines a light projection angle based on a blowing angle of the up-and-down wind direction plate and a temperature measured by the temperature sensor,
The indoor unit of an air conditioner according to claim 5 , wherein the laser driving device adjusts the main laser device by rotating the main laser device to the determined projection angle. The control device, during cooling operation, determines the projection angle so as to be smaller than the blowing angle of the up and down wind direction plate,
The indoor unit of an air conditioner according to claim 5 or 6 , wherein the laser driving device adjusts the main laser device by rotating the main laser device to the determined projection angle. The control device determines a light projection angle so as to be larger than a blowing angle of the up-and-down wind direction plate during heating operation,
The indoor unit of the air conditioner according to any one of claims 5 to 7 , wherein the laser driving device adjusts the main laser device by rotating the main laser device to the determined projection angle. Placed horizontally rotatably prior Symbol outlet, and a plurality of vertical louvers to set the blowing direction blowing air which has been heat-exchanged in the lateral direction by the heat exchanger,
Placed in front Symbol louver, claim 1, wherein by projecting light along a direction blowoff set by louver, further comprising a secondary laser device for irradiating a linear sub laser line extending in the vertical direction, the indoor unit of an air conditioner according to any one of 1-4.   A main body formed with an inlet and an outlet;
  A heat exchanger arranged in the main body and exchanging heat with air sucked from the suction port;
  A blower that blows out air that has been heat-exchanged in the heat exchanger from the outlet;
  Left and right wind direction plates that are installed in the air outlet so as to be able to rotate left and right, and that set the blowing direction to blow out the air heat-exchanged by the heat exchanger in the left and right direction,
  A secondary laser device that projects light along a blowing direction of air set by the left and right wind direction plates and irradiates a linear secondary laser line extending in the vertical direction.
  Air conditioner indoor unit.

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