JP2018071799A - Air Conditioning System - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioning device capable of adjusting a blowout state according to an operation by each of users in a plurality of blowout devices corresponding to air conditioning of the entire indoor space so that the blowout state desired by the user according to the necessity can be obtained, and quickly changing a feeling temperature of the user to a comfortable state while keeping the air conditioning state corresponding to the entire indoor space as much as possible.SOLUTION: Blowout states of a plurality of blowout devices 10 can be switched by a user so that an automatic control state in which the blowout devices 10 have the same blowout state, and an individual control state in which each blowout device 10 has the blowout state corresponding to user's operation instruction, can be switched, so that air conditioning can be performed by surely diffusing the conditioned air to an indoor space, and the air can be locally blown out from a prescribed blowout device 10 according to user's requirement when necessary, thus the user's comfort can be secured by properly activating the blowout devices 10 though the user can hardly feel comfort only by collective blowout control.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a system for performing air conditioning by blowing conditioned air into a space to be air conditioned by a plurality of air outlet devices.

  When air conditioning is performed on an indoor space such as an office space in a building, the air outlet that blows conditioned air into the indoor space subject to air conditioning is a ceiling that takes into account the ease of conditioned air reaching the indoor space. It is common to arrange | position to. However, depending on the ceiling height of the indoor space, in recent years, in order to suppress energy consumption related to air conditioning, an air outlet is installed on the floor of the indoor space to blow out conditioned air from the floor where people are active. An example of a system that performs efficient air conditioning for a living area (task area) within a predetermined height range is also increasing. Examples of conventional floor-mounted air outlet devices used in such cases include those disclosed in Japanese Patent Application Laid-Open No. 2009-127910 and Japanese Utility Model Publication No. 8-1397.

  In such a conventional air conditioning system, a blowout device of a type that is generally excellent in diffusibility of the conditioned air into the space as described above has been used at the floor blowout port. However, in order to respond to the needs of air conditioning that cannot be handled by a system that employs only such an outlet device, the air volume and direction can be adjusted according to individual requirements, as described in, for example, JP-A-2003-329294. A system that uses an air outlet has also been proposed.

JP 2009-127910 A Japanese Utility Model Publication No. 8-1397 JP 2003-329294 A

  In the air conditioning by the system using the conventional air outlet device as shown in Patent Documents 1 and 2, the air outlet provided on the floor is in an air outlet state that does not cause a draft in the living area. It is common. In recent years, the difference between the indoor temperature and the outside air temperature obtained by air conditioning tends to be reduced from the viewpoint of energy consumption suppression. In such an air condition, when the outside air temperature is extremely high or low, a person can enter the indoor space from the outside and feel the cold feeling that comes in contact with the indoor air from the state accustomed to the outside air temperature. I often feel unsatisfactory in the sense of warmth.

  However, the conventional system that uses floor outlets that emphasizes diffusibility and that covers the entire interior of the room is used in order to satisfy the sensation of cooling and warmth experienced by some people. Air conditioning could not be performed, and the air conditioning condition of the entire indoor space had to be adjusted. Adjustment of the air-conditioning condition of the entire indoor space takes time to reach the indoor temperature expected by the user who wants to change the temperature. As a result, the temperature may be uncomfortable, and it is difficult to take an appropriate measure, and the amount of energy input to the air conditioning increases as the entire space is adjusted.

  On the other hand, if the air outlet that can adjust the wind direction and has excellent directivity of the blown airflow is used for local air conditioning with respect to the user as in the system described in Patent Document 3, it is concentrated in the vicinity of the user. The conditioned air reaching the user easily causes a temperature change in the surrounding area of the user, and the time required to reach the temperature preferred by the user can be shortened. Thus, more effective air conditioning for the user can be expected.

  However, when a floor blowing mechanism that targets the air conditioning of the entire indoor space and a highly directional air outlet for obtaining the air-conditioning condition required by the user are provided, the configuration of the entire air conditioning system is naturally complicated. And has the problem of causing an increase in cost.

  Further, in the conventional system disclosed in Patent Document 3, conditioned air is supplied from the same air supply passage in the same independent air outlet and the other floor air outlet mechanism. The conditioned air could not be blown out from the air outlet with the strength exceeding the blowout for the whole air conditioning. Therefore, the effect of local air conditioning is limited, and there is a problem that it cannot sufficiently meet the user's request.

  The present invention was made in order to solve the above-mentioned problems, and it is possible to adjust the blowing state according to the operation of each user by a plurality of outlet devices corresponding to the air conditioning of the entire indoor space, for each user. Without using a blowout outlet that performs local blowout, the blowout state desired by the user can be obtained as necessary, while maintaining the air-conditioning state corresponding to the entire indoor space as much as possible. An object of the present invention is to provide an air-conditioning system that can quickly change the temperature of the body to a comfortable state and that can efficiently perform air-conditioning.

  The air conditioning system according to the present invention has an opening facing an indoor space to be air conditioned and is disposed on the floor of the indoor space, and the conditioned air supplied through the air supply passage under the floor is the opening. In the air conditioning system including a plurality of air outlet devices that blow out into the indoor space, the air conditioning system includes a control unit that adjusts the state of conditioned air that is blown from the openings of the air outlet devices, and the air outlet device is disposed at the opening. A flow rate adjusting unit that is arranged to be openable and closable between the interior of the air outlet device that communicates with the air supply passage, and that adjusts the flow rate of conditioned air from the air supply passage toward the inside of the air outlet device; And a blower fan that operates based on a predetermined control and blows conditioned air toward the opening, and receives a user's input operation in an indoor space, and receives conditioned air from the control unit. The blowing state change An operation unit for sending instructions, and the control unit is provided for each of the outlet devices and a central controller that collectively executes the same outlet state adjustment control for a plurality of outlet devices on the floor. The flow rate adjustment unit and the blower fan based on the control instruction of the central control unit, and a local blowout control unit capable of executing the blowout state adjustment control of the blowout device alone, respectively. In response to the blowing state change instruction from the operation unit that has received the user's input operation, the local blowing control unit, the automatic control state corresponding to the control instruction from the central control unit, and from the central control unit Regardless of the control instruction, it is possible to switch between the flow rate adjustment unit of the outlet device and the individual control state in which the blower fan can be operated, and the central control unit automatically controls the local outlet control unit from the individual control state. Forcibly switch to In the automatic control state, the flow rate adjustment unit of each outlet device is set to a predetermined open state, and the blower fan is set to a predetermined operating state, and conditioned air is blown to each outlet device with the same predetermined air volume. The local blow-out control unit is configured so that the individual control state includes a stop mode in which the flow rate adjusting unit is closed and a blower fan is in a stopped state, and at least the flow rate adjusting unit is in an open state, And a fixed blowing mode that operates the fan in accordance with a preset blowing amount, and can be switched to any of the above modes based on an instruction from the operation unit that receives a user input operation. It is supposed to be.

  As described above, according to the present invention, the air outlet states of the plurality of air outlet devices installed on the floor of the indoor space can be switched by the user, and each air outlet device responds to the control instruction of the central control unit with respect to the indoor space. Switch between the automatic control state that results in the same blowout state and the individual control state that becomes the blowout state according to the user's operation instruction for each blowout device, and blow out conditioned air flow from each blowout device to the indoor space. In addition to air conditioning for the entire indoor space, it is possible to select the blowing state desired by the user for each outlet device, so that the conditioned air can be reliably diffused into the indoor space and air conditioning can be performed. If necessary, air can be blown out in a state according to the user's request locally from the air outlet device corresponding to the specific area where the user exists. Even when it is difficult to obtain a comfortable feeling due to the sum, the temperature of the user can be improved by appropriately using the air outlet device corresponding to the user, and the cost of the air conditioning can be suppressed while the user's feeling is reduced. A comfortable feeling can be secured.

It is a schematic structure explanatory view of an air harmony system concerning one embodiment of the present invention. It is arrangement | positioning explanatory drawing to the floor of the indoor space of the air conditioning system which concerns on one Embodiment of this invention. It is a block diagram of an air harmony system concerning one embodiment of the present invention. It is a blowing state explanatory view of the blower outlet device in the air harmony system concerning one embodiment of the present invention. It is a top view of the blower outlet device in the air harmony system concerning one embodiment of the present invention. It is AA sectional drawing of FIG. It is a bottom view of the blower outlet device in the air harmony system concerning one embodiment of the present invention. FIG. 6 is a sectional view taken along the line BB of the face portion in FIG. 5. It is an operation state explanatory view of the flow volume adjustment part and the fan for ventilation in the automatic control state of each blower outlet device in the air harmony system concerning one embodiment of the present invention. It is a blowing stop state explanatory view of one blower outlet device in the air harmony system concerning one embodiment of the present invention. It is a maximum blowing state explanatory view of one outlet device in the air harmony system concerning one embodiment of the present invention.

  Hereinafter, an air conditioning system according to an embodiment of the present invention will be described with reference to FIGS. 1 to 11. This embodiment demonstrates the example of the system which arrange | positions and uses an outlet apparatus on the floor which is what is called a free access floor (double floor) facing the indoor space of air conditioning object.

  In each of the drawings, the air conditioning system 1 according to the present embodiment has an opening facing the indoor space 70 and is disposed on the floor 80 of the indoor space, and the supplied conditioned air is supplied from the opening to the indoor space 70. It is the structure provided with the control part 50 which adjusts the blowing state of the conditioned air from the opening part of each blower outlet apparatus 10, and the several blower outlet apparatus 10 which blows out to the inside.

  The air outlet device 10 is formed as a substantially box-like body surrounding a hollow portion having a circular cross section, is attached to a predetermined portion of the floor 80, and is supplied with conditioned air through an air supply passage 81 under the floor. An air outlet body 11, a face portion 12 that is supported by a portion of the air outlet body 11 closer to the interior space, forms a part of the floor 80, and has a plurality of air holes 12 a and 12 b as openings. A flow rate adjusting unit 13 that is arranged in a communication portion with the air supply passage 81 at the lower part of the outlet body 11 and adjusts the flow rate of conditioned air from the air supply passage 81 into the outlet body 11, and the interior of the outlet body 11 The fan is disposed at a predetermined position between the face portion 12 and the flow rate adjusting portion 13 and operates based on the control from the outside, and is controlled in response to a user input operation in the indoor space 70. Harmony air in part 50 It is configured to include an operation unit 15 to send a blowout state changing instruction.

  The outlet body 11 has a substantially annular upper frame portion 11a attached to the floor 80 so that the upper end portion is part of the floor 80 and exposed to the indoor space side, and a substantially cylindrical box shape with one end closed. In combination with the lower frame portion 11b fixed to the lower outer peripheral side of the upper frame portion 11a, the upper portion opens as a whole and is formed as a substantially box-like body having a bottom portion.

  A plurality of under floor side openings 11c are formed in the lower surface portion of the lower frame portion 11b at the lower portion of the outlet body 11 to communicate the inside of the lower frame portion 11b with the air supply passage 81 under the floor, and the lower frame portion 11b. On the lower side, a substantially disc-shaped shutter portion 13a along the lower surface including each floor lower side opening portion 11c is rotatably arranged. This shutter unit 13 a forms part of the flow rate adjustment unit 13.

  Furthermore, the inner side of the upper frame part 11a on the upper part of the outlet body 11 is a room-side opening part 11d having a circular opening cross section, and is separate from the outlet body 11 in a state of closing the room-side opening part 11d. The face portion 12 serving as a body is configured to be fitted and disposed to the upper frame portion 11a. A step portion on which the face portion 12 can be placed is formed on the inner periphery of the upper frame portion 11a facing the indoor opening 11d, and the surface of the face portion 12 is substantially the same height as the upper end portion of the upper frame portion 11a. It is a mechanism to support.

  In the outlet body 11, conditioned air is supplied from the underfloor space (or underfloor duct), which is the air supply passage 81, through the underfloor opening 11 c. This conditioned air is sent out to the indoor space through the blowout holes of the face portion 12 arranged in the indoor opening 11d above the blowout body 11.

  The face portion 12 is a disc-like body in which a plurality of blowout holes 12 a and 12 b are formed. The blowout body 11 has a center of the disc coincided with the center position of the indoor opening 11 d of the blowout body 11. It is the structure fitted and arrange | positioned so that attachment or detachment is possible. The upper surface of the face portion 12 is substantially at the same height as the upper frame portion 11a of the surrounding outlet body 11 and becomes a part of the floor 80. Further, unevenness for alignment is formed on the peripheral surface of the lower surface of the face portion 12, and the unevenness on the peripheral portion engages with the unevenness on the outlet body 11 side, so that the face portion 12 is formed on the outlet body 11. On the other hand, it is a mechanism that can be fixed so as not to be displaced by unintended rotation.

  Of the plurality of blowing holes 12a, 12b of the face portion 12, the first blowing holes 12a are formed in a rotationally symmetrical arrangement at equal angular intervals with the center of the disk-shaped face portion 12 as the center of the array. It is a long hole having a substantially slit shape. Moreover, the 2nd blowing hole 12b is each drilled as a long hole shape shorter than the 1st blowing hole 12a by the arrangement | positioning which becomes the same angular space as the 1st blowing hole 12a in the area | region between each 1st blowing holes 12a. Is. Each of the blowout holes 12a and 12b is formed such that a longitudinal extension line of a hole opening having a substantially slit-like long hole shape on the front and back surfaces of the face portion 12 passes through the center of the face portion 12.

In each of the blowout holes 12a and 12b, the longitudinal extension line of the hole opening having a substantially slit-like long hole shape on the surface of the face part 12 passes through the center of the face part 12, and the hole opening on the surface of the face part 12 and the back surface. The positions are drilled as an arrangement shifted from each other in a direction perpendicular to the longitudinal direction of the hole until the overlap in the thickness direction of the face part becomes only a part. Thus, each of the blowout holes 12a and 12b is configured to have a hole shape that is entirely inclined with respect to the thickness direction of the face part perpendicular to the face part surface.
Thereby, the conditioned air that passes through each of the blowing holes 12a and 12b can be blown obliquely with respect to the indoor space.

  The blowout state of the air outlet device as a whole is arranged in a rotationally symmetrical manner with respect to the center of the face portion 12 of each of the blowout holes 12a and 12b, and an oblique direction inclined by a predetermined angle from a direction perpendicular to the floor surface derived from the hole shape. From the relationship with the blowing direction of the airflow, the airflows blown obliquely upward from the respective blowing holes 12a and 12b collide with each other and affect each other. It becomes a swirl flow. In this way, the conditioned air travels along each of the blowing holes 12a and 12b of the face portion 12, and the conditioned air is blown into the indoor space in a diffused state as a swirling flow.

  The flow rate adjusting unit 13 is disposed in the air outlet body 11 so as to be rotatable, and is fixedly provided in the air outlet body 11. The flow rate adjusting unit 13 is driven and rotated with respect to the air outlet body 13. And a motor 13b to be operated. The flow rate adjusting unit 13 is openable and closable between the air outlet main body 11 communicating with the air outlets 12 a and 12 b serving as the openings of the face portion 12 and the air supply passage 81. The flow rate of conditioned air toward the inside of the outlet body 11 will be adjusted.

  The flow rate adjusting unit 13 can be operated by the control of the control unit 50, and the shutter unit 13a is driven by a motor 13b that operates based on the control, and rotates with respect to the outlet body 11. The communication state with respect to the inside of the blower outlet main body 11 of the part 11c is changed, and the flow volume adjustment of the conditioned air flowing into the blower outlet main body 11 from the air supply passage 81 under the floor is executed.

  The blower fan 14 is disposed at a predetermined position below the face portion 12 in the outlet body 11, operates based on control from the outside, sends conditioned air upward, and transmits the conditioned air to the face portion 12. It is the structure made to flow in into each blowing hole 12a, 12b.

  The blower fan 14 has a mechanism that can be switched between an operating state and a non-operating state by the control unit 50. The configuration of the blower fan 14 is the same as that of a known axial fan, and detailed description thereof is omitted.

  Inside the air outlet body 11 between the blower fan 14 and the face portion 12, dust and the like in the conditioned air are trapped, and the swirl velocity component of the airflow generated by the blower fan 14 is attenuated to advance straightly. A known filter 14 a having a function of enhancing the property is disposed across the inside of the outlet body 11.

  The operation unit 15 is a known switch or the like disposed in the center of the face unit 12, and receives a user's input operation in the indoor space to receive a local blowing control unit 52 corresponding to each outlet device 10. On the other hand, an instruction to change the blown-out state of the conditioned air at the blow-out device 10 to a different one is sent. Specifically, based on the control instruction of the central control unit 51, the automatic control state in which each air outlet device 10 similarly blows out, the state in which the air blowing from the air outlet device 10 is stopped (stop mode), and the air outlet The state in which the air is blown from the device 10 with the maximum air volume (fixed air blowing mode) can be switched based on the operation of a switch or the like by the user. Along with the operation unit 15, a display unit such as an LED that displays the state of the blowout device 10 based on the control of the local blowout control unit 52 may be provided.

  The control unit 50 is provided for each of the blowout device 10 and a central control unit 51 that collectively executes the same blowout state adjustment control for the plurality of blowout device 10 on the floor. It is the structure which has the local blowing control part 52 which can respectively perform control of the flow volume adjustment part 13 and the fan 14 for ventilation based on this, and the blowing state adjustment control of a blower outlet apparatus independently.

  The central control unit 51 as a blowing state adjustment control for a plurality of outlet devices 10, a local blowing control unit for each outlet device 10 using a control instruction relating to the operation of the flow rate adjusting unit 13 and the blower fan 14 as a control current. This is a configuration that can output to 52.

  Specifically, the central control unit 51 obtains the conditioned air blowing state of the entire outlet device 10 that brings about an appropriate air conditioned state of the indoor space mainly based on information indicating the state of the indoor space such as temperature. Correspondingly, a control instruction for operating the flow rate adjusting unit 13 and the blower fan 14 of each air outlet device 10 is output to the local air outlet control unit 52 for each air outlet device 10. This makes it possible to adjust the blowing state uniformly.

  The local blowout control unit 52 is connected to the flow rate adjusting unit 13, the blower fan 14, and the operation unit 15 arranged in each blowout device 10, and is provided for each blowout device 10. 51, the control instruction can be input, and the operation of the flow rate adjusting unit 13 and the blower fan 14 is controlled to adjust the blowing state of the conditioned air.

  Specifically, the local blowing control unit 52 controls the operation of the flow rate adjusting unit 13 and the blower fan 14 of the outlet device 10 based on the magnitude of the control current within a predetermined range as a control instruction of the central control unit 51. Regardless of the automatic control state to be executed and the control instruction from the central control unit 51, the flow rate adjusting unit 13 and the air blowing unit are based on a predetermined setting corresponding to the instruction from the operation unit 15 that has received the user's input operation. The individual control state in which the fan 14 can be operated can be switched in response to the blowing state change instruction from the operation unit 15. However, the local blowing control unit 52 can be forcibly switched from the individual control state to the automatic control state by the central control unit 51.

  In the automatic control state, the local blowing control unit 52 sets the flow rate adjusting unit 13 of each outlet device 10 to a predetermined open state according to the magnitude of the control current as the control instruction of the central control unit 51, and the fan for blowing. 14 is made into a predetermined operation state, and each blower outlet apparatus is made to perform the conditioned air blowing of the same predetermined air volume. More specifically, when the magnitude of the control current from the central control unit 51 is within a predetermined first range (for example, 4.0 to 4.5 mA), the local blowing control unit 52 is a flow rate adjusting unit. 13 is closed and the blower fan 14 is stopped. Further, when the control current is in the second range (for example, 5.0 to 18.0 mA) larger than the first range, the flow rate adjusting unit 13 is opened to the maximum and the air flow is blown. The fan 14 is in a state of being operated so as to have an air volume that changes in proportion to the magnitude of the control current. Furthermore, when the magnitude of the control current is in a third range (for example, 19.0 to 20 mA) larger than the second range, the flow rate adjusting unit 13 is opened to the maximum and the blower fan is used. 14 is operated so as to maximize the air flow rate (see FIG. 9).

  The first range and the second range in the control current that the central control unit 51 outputs to the local blowout control unit 52 in the automatic control state are set to be greater than the maximum value of the first range so as not to overlap each other. The minimum value of the second range is set larger than the maximum value of the second range so that the second range and the third range do not overlap each other. Is set. And the local blowing control part 52 has a magnitude of the control current from the central control part 51 between the first range and the second range, or between the second range and the third range. If the value is between, the flow rate adjusting unit 13 and the blower fan 14 are maintained as they are immediately before. That is, between the first range and the second range of the control current and between the second range and the third range are treated as transition sections (dead zones), respectively, so as not to change the blowing state. By doing so, even if a situation occurs in which the control current slightly fluctuates when the number of local blowing control units 52 connected to the central control unit 51 is large, the blowing state is not erroneously changed, and the stable blowing state Is obtained.

  In addition to this, the local blowing control unit 52 sets the flow control unit 13 in the closed state and the blower fan 14 in the stopped state and the flow rate adjustment unit 13 in the fully open state as the individual control state. And a fixed blowing mode in which the blowing fan 14 is operated to maximize the blowing capacity. The local blowing control unit 52 is configured to be able to switch between the automatic control state and each of the individual control states based on an instruction from the operation unit 15 that has received an input operation by the user. It is.

  On the other hand, the local blowing control unit 52 is configured to be forcibly switched from the individual control state to the automatic control state by the central control unit 51. However, the local blowing control unit 52 is changed from the individual control state to the automatic control state. The control instruction to forcibly switch to is performed when the central control unit 51 outputs the magnitude of the control current as the third range. If the local blowing control unit 52 in the individual control state is input with a control current in the third range, the flow rate adjusting unit 13 of the corresponding outlet device 10 is opened to the maximum, and While operating the air blowing fan 14 to maximize the air blowing capacity, the state is shifted to the automatic control state.

  Next, the air conditioning state to the indoor space by the air conditioning system based on the said structure is demonstrated. As a premise, the conditioned air is sufficiently supplied from the air supply passage 81 under the floor to each outlet device 10, and the conditioned air can be blown out to the indoor space 70 by the plurality of outlet devices 10. Shall.

  When the user does not perform any particular operation, the local blowout control unit 52 is in an automatic control state, and the operation control of the flow rate adjusting unit 13 and the blower fan 14 of the blowout device 10 is performed based on the control instruction of the central control unit 51. Execute.

  In the automatic control state, when the magnitude of the control current from the central control unit 51 is in the first range (for example, 4.0 to 4.5 mA), the local blowing control unit 52 causes the flow rate adjustment unit 13 to The closed state is set, and the blower fan 14 is set in the stopped state. Thereby, the blowing from the blower outlet apparatus 10 is stopped.

  When the magnitude of the control current from the central control unit 51 is in the second range (for example, 5.0 to 18.0 mA), the local blowing control unit 52 operates the motor 13b of the flow rate adjustment unit 13. The shutter portion 13a is rotated to open the underfloor side opening 11c as much as possible, and the air supply passage 81 and the internal space of the outlet body 11 are in communication with each other through the underfloor side opening portion 11c. The fan 14 is in a state of being operated so as to have an air volume that changes in proportion to the magnitude of the control current.

  Thus, the conditioned air supplied from the underfloor air supply passage 81 smoothly proceeds to the interior space of the outlet body 11 through the lower floor side opening 11c of the outlet body 11, and rises inside the outlet body 11. And reaches the blower fan 14. And the conditioned air which reached the indoor side opening 13d in the upper part of the outlet body by the blowing by the blower fan 14 further reaches the face portion 12 and passes through the blowout holes 12a and 12b. The air flow of the conditioned air is synthesized after leaving the outlet holes 12a and 12b based on the arrangement of the outlet holes 12a and 12b whose hole extending directions are inclined from the vertical direction and being rotationally symmetric with respect to the center of the face portion 12. It becomes a swirl flow and reaches the indoor space.

  In this way, the air flow of conditioned air is blown out from the air outlet device 10 to the indoor space as a swirl flow (see FIG. 1), and the air flow is diffused based on the swirl velocity component so that the conditioned air is spread over a wide area of the indoor space. Air conditioning is achieved by reliably reaching, and a state in which the temperature of the indoor space is uniformly adjusted is obtained.

  Furthermore, when the magnitude of the control current from the central control unit 51 is in the third range (for example, 19.0 to 20 mA), the local blowing control unit 52 is in a state where the flow rate adjustment unit 13 is opened to the maximum. At the same time, the blower fan 14 is set to a state of being operated to maximize the blower capacity.

  In this case, the conditioned air blown out from the air outlet device 10 has a maximum air volume, the ability to reach each part of the indoor space as a swirl flow is also maximized, and the air conditioning ability with respect to the indoor space is maximized. A state where the temperature control of the space is advanced strongly can be obtained.

  On the other hand, when the user performs an operation of changing the conditioned air blowing state on the operation unit 15 of the nearby air outlet device 10, the local blowing control unit 52 instructs the operation unit 15 that has received the user's input operation. Is switched from the automatic control state to the individual control state stop mode or the fixed blowing mode. Normally, each time the user performs an input operation on the operation unit 15, the stop mode in the individual control state, the automatic control state, and the fixed blowing mode in the individual control state are sequentially switched.

  When switching to the individual control state stop mode by the operation of the operation unit 15 by the user, the local blowing control unit 52 is in the open state regardless of the control instruction from the central control unit 51. At that time, the motor 13b is operated to rotate the shutter portion 13a, the underfloor opening 11c is closed, the air supply passage 81 and the internal space of the outlet body 11 are not communicated, and the flow rate adjusting portion 13 is closed. State. In addition, the blower fan 14 is stopped, and the blowout from the outlet device 10 is stopped (see FIG. 10).

  When the user feels uncomfortable, such as too cold or too warm, about the outlet of a nearby outlet device, the excessive outlet of the outlet device 10 can be suppressed, preventing over-cooling and over-warming, and getting a feeling of comfort Will be.

  Further, when the operation unit 15 is operated by the user to switch to the fixed blowing mode in the individual control state, the local blowing control unit 52 closes the flow rate adjusting unit 13 regardless of the control instruction from the central control unit 51. When in the state, the motor 13b is operated to rotate the shutter portion 13a to open the underfloor side opening 11c as much as possible, and the air supply passage 81 and the internal space of the outlet body 11 are connected through the underfloor side opening 11c. In addition to the communication state, the blower fan 14 is operated to maximize the blowing capacity.

  As a result, the conditioned air supplied from the air supply passage 81 under the floor proceeds to the internal space of the outlet body 11 through the lower floor opening 11c of the outlet body 11, and rises inside the outlet body 11 to blow air. The fan 14 is reached. Then, the conditioned air reaches the blowout holes 12a and 12b of the face portion 12 through the powerful blow by the blower fan 14 and passes through them. The air flow of conditioned air is synthesized after leaving the outlet holes 12a and 12b to become a swirling flow, the maximum air flow capacity is maximized, and the area around the outlet device where the user exists. The conditioned air is efficiently diffused in the region (see FIG. 11).

  In this way, in addition to the air conditioning for the entire indoor space, the user can feel the coolness or warmth directly from the airflow hitting the user's body by allowing an appropriate amount of conditioned air to reach the user's surroundings. It is possible to obtain an excellent sensory temperature adjustment state that makes the transition to a comfortable state at an early stage.

  Further, when it is desired to return all the air outlet devices 10 to the automatic control state, such as when air conditioning is started or stopped for the entire indoor space, a local blowout control unit is provided by a control instruction from the central control unit 51. 52 is forcibly switched from the individual control state to the automatic control state. Specifically, the central control unit 51 outputs the magnitude of the control current as the third range (for example, 19.0 to 20 mA) to the local blowing control unit 52 in any mode of the individual control state. When the local blowout control unit 52 receives this control current, the flow rate adjustment unit 13 of the corresponding blowout device 10 is opened to the maximum, and the blower fan 14 has the maximum blowing capacity. At the same time, the automatic control state is entered. That is, when the flow rate adjustment unit 13 is in the closed state, the local blowing control unit 52 operates the motor 13b to rotate the shutter unit 13a to open the underfloor side opening 11c to the maximum extent, and through the underfloor side opening 11c. The air supply passage 81 and the internal space of the air outlet body 11 are in communication with each other, and the air blowing fan 14 is operated to maximize the air blowing capacity.

  And after that, the local blowing control unit 52 is in an automatic control state in which the operation control of the flow rate adjusting unit 13 and the blower fan 14 of the outlet device 10 is executed based on the magnitude of the control current from the central control unit 51. Become.

  Thus, in the air conditioning system according to the present embodiment, the blowing state of the plurality of outlet devices 10 installed on the floor 80 of the indoor space 70 can be switched by the user, and The automatic control state in which the outlet device 10 is in the same blowing state according to the control instruction of the central control unit 51 and the individual control state in which the outlet device 10 is in the blowing state according to the user's operation instruction for each outlet device 10 are switched, Since the air flow of conditioned air is blown out from each air outlet device 10 to the indoor space 70 and air conditioning is performed on the entire indoor space, the air blowing state desired by the user can be selected for each air outlet device 10. In addition to being able to diffuse the conditioned air reliably in the space to perform the air conditioning, the air outlet device 10 corresponding to a specific region where the user exists is locally responded to the user's request as necessary. Even if it is difficult for the user to obtain a comfortable feeling due to air conditioning only by the collective air blow control for the indoor space 70, the air outlet device 10 corresponding to the user can be used as appropriate. The sensory temperature can be improved, and the user's comfort can be ensured while suppressing the costs associated with air conditioning.

  In the air conditioning system according to the embodiment, the four air outlet devices 10 are arranged at equal intervals on the floor of the indoor space, but the number and arrangement of the air outlet devices are not limited thereto, and Depending on the situation of space and usage, each air outlet device may be arranged appropriately.

  Moreover, in the air conditioning system which concerns on the said embodiment, the local blowing control part 52 will be in an individual control state based on operation of the user's operation part 15, and the flow volume adjustment part 13 and the fan 14 for ventilation are operated. Once the conditioned air is shifted to the state in which the conditioned air is blown out through the outlet device 10, the local outlet control unit 52 performs individual control until a control current is input from the central control unit 51 so as to forcibly shift to the automatic control state. Although it is set as the structure which maintains the blowing state based on a state, not only this but the human sensor corresponding to the blower outlet apparatus 10 is provided, it is made to use the information which detected the presence of the user with this human sensor, If the presence sensor detects the absence of a person (user) in a predetermined area in the vicinity of the air outlet device, which is the target of conditioned air blowing from the air outlet device 10, the local air outlet control unit automatically controls the state. It can also be configured to move to.

  In this case, when the user leaves the vicinity of the operated air outlet device for a predetermined time or more while changing the air outlet state of the predetermined air outlet device based on the user's operation and keeping the air outlet locally different, the air outlet is quickly discharged. The local outlet control unit that controls the outlet device is shifted to the automatic control state, and the outlet device is effectively utilized by returning the outlet device to the outlet state for the entire indoor space like other outlet devices. Thus, air conditioning can be efficiently performed in the indoor space.

DESCRIPTION OF SYMBOLS 1 Air conditioning system 10 Air outlet apparatus 11 Air outlet body 11a Upper frame part 11b Lower frame part 11c Under floor side opening part 11d Indoor side opening part 12 Face part 12a, 12b Blowing hole 13 Flow volume adjustment part 13a Shutter part 13b Motor 14 For ventilation Fan 14a Filter 15 Operation unit 50 Control unit 51 Central control unit 52 Local blowout control unit 70 Indoor space 80 Floor 81 Air supply passage

Claims (5)

An air outlet device that has an opening facing an indoor space subject to air conditioning and is arranged on the floor of the indoor space and blows conditioned air supplied through the air supply passage under the floor from the opening to the indoor space In an air conditioning system comprising a plurality of
A control unit that adjusts the blowing state of conditioned air from the opening of each of the outlet devices;
The outlet device is
A flow rate adjusting unit that is arranged so as to be openable and closable between the air outlet device communicating with the opening and the air supply passage, and that adjusts the flow rate of conditioned air from the air supply passage toward the air outlet device;
A blower fan that is disposed inside the outlet device and operates based on predetermined control to blow conditioned air toward the opening;
An operation unit that receives an input operation of a user in an indoor space and sends an instruction to change the blowing state of conditioned air to the control unit;
The said control part is provided for every central outlet which performs the same blowing state adjustment control collectively with respect to the several outlet apparatus of a floor, and the said flow volume based on the control instruction | indication of the said central controller A control unit and a blower fan, and a local blowout control unit capable of executing the blowout state adjustment control of the blowout device alone.
In response to the blowing state change instruction from the operation unit that has received the user's input operation, the local blowing control unit, the automatic control state corresponding to the control instruction from the central control unit, and from the central control unit Regardless of the control instruction, it is possible to switch between the individual flow control unit and the individual control state in which the blower fan is operable,
The central control unit can forcibly switch the local blowing control unit from an individual control state to an automatic control state, and in the automatic control state, the flow rate adjustment unit of each outlet device is in a predetermined open state. The blower fan is set to a predetermined operating state, and each air outlet device is caused to execute conditioned air blowing of the same predetermined air volume,
The local blowing control unit sets the flow control unit in a closed state and the blower fan in a stopped state as the individual control state, and at least sets the flow rate adjustment unit in an open state, and sets the blower fan in advance. A fixed blowing mode that is operated in accordance with the blown amount that has been made, and can be switched to one of the modes based on an instruction from the operation unit that has received an input operation by a user. A characteristic air conditioning system. The air conditioning system according to claim 1, wherein
The local blowing control unit operates in a fixed blowing mode in the individual control state so that the flow rate adjusting unit is opened to the maximum and the blowing fan is operated to maximize the blowing capacity. . In the air conditioning system according to claim 1 or 2,
The central control unit gives a control instruction to the local blowing control unit for each of the plurality of outlet devices as a control current, and the flow rate adjusting unit and the fan for blowing are supplied to the local blowing control unit based on the magnitude of the control current within a predetermined range. Let the operation control,
In the automatic control state, the local blow-out control unit closes the flow rate adjustment unit and stops the blower fan when the magnitude of the control current from the central control unit is within a predetermined first range. When the state is in the second range larger than the first range, the flow rate adjusting unit is set to a predetermined open state, and the air blowing fan is set to have an air blowing amount that changes in proportion to the magnitude of the control current. When in a third range that is larger than the second range, the flow rate adjustment unit is in a fully open state and the blower fan is operated to maximize the blower amount. Air conditioning system. In the air conditioning system according to claim 3,
The central control unit is configured to control the magnitude of the control current as a control instruction for forcibly switching the local blowing control unit from the individual control state to the automatic control state with respect to the local blowing control unit for each of the plurality of blowing outlet devices. Output as a range of
When the local blowout control unit is in the individual control state and the magnitude of the control current from the central control unit is in the third range, the local flow control unit is set to a state in which the flow rate adjustment unit is fully opened, and the blower fan is The air conditioning system is characterized in that the air flow is maximized and the state is shifted to the automatic control state. In the air conditioning system according to claim 3 or 4,
In the control current output by the central control unit to the local blowing control unit, the first range and the second range have a second range greater than the maximum value of the first range so as not to overlap each other. The minimum value is set larger, and the second range and the third range are set so that the minimum value of the third range is larger than the maximum value of the second range so as not to overlap each other.
In the automatic control state, the local blowout control unit is configured such that the magnitude of the control current from the central control unit is between the first range and the second range, or the second range and the third range. If the value is between the above ranges, the air conditioning system is characterized in that the flow rate adjusting unit and the blower fan are maintained as they are immediately before.

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