Floor air conditioning system
Patent Information
- Application Number
- AU2024428779
- Authority / Receiving Office
- AU · AU
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-02-15
- Filing Date
- 2024-09-27
- Publication Date
- 2026-08-27
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Title of the Invention: FLOOR AIR CONDITIONING SYSTEM TECHNICAL FIELD
[0001] The present invention relates to construction fields, and more particularly, to a floor air conditioning system. BACKGROUND ART
[0002] In the past, most buildings adopted ceiling supply air conditioning systems, which are configured to supply heating or cooling air into indoor spaces through air ducts in a ceiling.
[0003] In the case of cooling using a ceiling supply air conditioning system, in order for cool air to be discharged from the ceiling to a living area below a height of 1.8 m, furthermore, in order to reach a position within 1.2 m to 1.5 m or less, which is a position where a person is sitting, since the hot air above has to be cooled first before descending, there is a problem of deteriorated cooling efficiency.
[0004] To resolve this problem, an underfloor air distribution system (UFAD) has been developed.
[0005] This provides heating or cooling air to the indoor space through the indoor floor side, more specifically, a side below the access floor.
[0006] The underfloor air distribution system has the advantage of high cooling efficiency for the living area, as the cool air is supplied from the floor side close to where people is sitting. Moreover, when changing a partition of the room or an arrangement of furniture, it is possible to make corresponding adjustments simply by changing a position of a underfloor air distribution unit disposed below the access floor.
[0007]
[0008] A method for increasing or decreasing in temperature of an indoor space in a floor air conditioning system include increasing or decreasing in air supply amount, or controlling a temperature of supplied air by a heating / cooling device. However, since no specific control method related thereto has been developed in the related art, this has been pointed out as a problem. DISCLOSURE OF THE INVENTION TECHNICAL PROBLEM
[0009] The present invention is derived to solve the above problems, and an object of the present invention is to provide a floor air conditioning system, in which a method for increasing / decreasing in air supply amount and a method for controlling a temperature of supplied air are efficiently combined with each other to increase / decrease in temperature of an indoor space, thereby reducing energy consumption and minimizing environmental damage. TECHNICAL SOLUTION
[0010] The solve the above problem, the present invention provides a floor air conditioning system, in which air is supplied from a floor space 110 to an indoor space 100 through a plurality of discharge holes 121, which are defined in a floor part 120 installed between the floor space 110 and the indoor space 100, due to a pressure difference between the floor space 110 and the indoor space 100, the floor air conditioning system including: an air supply unit 200 configured to supply air to the floor space 110; a temperature control unit 300 configured to control a temperature T of the air supplied from the floor space 110 by a heating device or a cooling device; a lower temperature sensor 101 installed to measure a lower temperature T1 of the indoor space 100; an upper temperature sensor 102 installed to measure an upper temperature T2 of the indoor space 100; and a controller configured to control the air supply unit 200 and the temperature control unit 300 on the basis of the lower temperature T1 measured by the lower temperature sensor 101 and the upper temperature T2 measured by the upper temperature sensor 102, wherein the controller is configured to: set a minimum air supply amount Qmin and a maximum air supply amount Qmax of the air supply unit 200 so that the pressure difference between the floor space 110 and the indoor space 100 is within a set pressure range; set a maximum indoor temperature Tmax and a minimum indoor temperature Tmin of the indoor space 100; increase or decrease in air supply amount Q of the air supply unit 200 so that the temperature of the indoor space 100 is maintained within a set temperature range between the maximum indoor temperature Tmax and the minimum indoor temperature Tmin when the lower temperature T1 measured by the lower temperature sensor 101 or the upper temperature T2 measured by the upper temperature sensor 102 gets out of the set temperature range; and control the temperature control unit 300 when the temperature of the indoor space 100 gets out of the set temperature range in spite of the increasing air supply amount Q being equal to or greater than the maximum air supply amount Qmax or the decreasing air supply amount Q being less than or equal to the minimum air supply amount Qmin.
[0011] In case of heating during a winter season, in which air having a temperature higher than an external temperature is supplied by the heating device, the controller may be configured to: increase in air supply amount Q by the air supply unit 200 when the lower temperature T1 measured by the lower temperature sensor 101 is lower than the minimum indoor temperature Tmin; and increase in temperature T of the air supplied by the temperature control unit 300 when the increasing air supply amount Q is equal to or greater than the maximum air supply amount Qmax.
[0012] When the upper temperature T2 measured by the upper temperature sensor 102 is higher than the maximum indoor temperature Tmax, the air supply amount Q by the air supply unit 200 may decrease, and when the decreasing air supply amount Q is equal to or less than the minimum air supply amount Qmin, the temperature T of the air supplied by the temperature control unit 300 may decrease.
[0013] In case of cooling during a summer season, in which air having a temperature lower than an external temperature is supplied by the cooing device, the controller may be configured to: increase in air supply amount Q by the air supply unit 200 when the upper temperature T2 measured by the upper temperature sensor 102 is higher than the maximum indoor temperature Tmax; and decrease in temperature T of the air supplied by the temperature control unit 300 when the increasing air supply amount Q is equal to or greater than the maximum air supply amount Qmax.
[0014] When the lower temperature T1 measured by the lower temperature sensor 101 is lower than the minimum indoor temperature Tmin, the air supply amount Q by the air supply unit 200 may decrease, and when the decreasing air supply amount Q is equal to or less than the minimum air supply amount Qmin, the temperature T of the air supplied by the temperature control unit 300 may increase.
[0015] The present invention provides a floor air conditioning method, in which air is supplied from a floor space 110 to an indoor space 100 through a plurality of discharge holes 121, which are defined in a floor part 120 installed between the floor space 110 and the indoor space 100, due to a pressure difference between the floor space 110 and the indoor space 100, the floor air conditioning method including: an air supply amount setting process of setting a minimum air supply amount Qmin and a maximum air supply amount Qmax to the indoor space 100 so that a pressure difference between the floor space 110 and the indoor space 100 is within a set pressure range; a temperature range setting process of setting a maximum indoor temperature Tmax and a minimum indoor temperature Tmin of the indoor space 100 and determining a set temperature range that is a range between the maximum indoor temperature Tmax and the minimum indoor temperature Tmin; an air supply amount control process of increasing or decreasing in air supply amount Q to the indoor space 100 so that the temperature of the indoor space 100 is within the set temperature range when a lower temperature T1 or an upper temperature T2 of the indoor space 100 gets out of the set temperature range; and an air temperature control process of increasing or decreasing in temperature T of the air supplied to the indoor space 100 when the temperature of the indoor space 100 gets out of the set temperature range even though the increasing air supply amount Q is equal to or greater than the maximum air supply amount Qmax, or the decreasing air supply amount Q is equal to or less than the minimum air supply amount Qmin.
[0016] In case of heating during a winter season, in which air having a temperature higher than an external temperature is supplied to the indoor space 100, the air supply amount control process may include a process of increasing in air supply amount Q when the lower temperature T1 of the indoor space 100 is lower than the minimum indoor temperature Tmin, and the air temperature control process may include a process of increasing in temperature T of the air supplied to the indoor space 100 when the increasing air supply amount Q is equal to or greater than the maximum air supply amount Qmax.
[0017] The air supply amount control process may include a process of decreasing in air supply amount Q to the indoor space 100 when the upper temperature T2 of the indoor space 100 is higher than the maximum indoor temperature Tmax, and the air temperature control process may include a process of decreasing in temperature T of the air supplied to the indoor space 100 when the decreasing air supply amount Q is equal to or less than the minimum air supply amount Qmin.
[0018] In case of cooling during a summer season, in which air having a temperature lower than an external temperature is supplied to the indoor space 100, the air supply amount control process may include a process of increasing in air supply amount Q to the indoor space 100 when the upper temperature T2 of the indoor space 100 is higher than the maximum indoor temperature Tmax, and the air temperature control process may include a process of decreasing in temperature T of the air supplied to the indoor space 100 when the increasing air supply amount Q is equal to or greater than the maximum air supply amount Qmax.
[0019] The air supply amount control process may include a process of decreasing in air supply amount Q to the indoor space 100 when the lower temperature T1 of the indoor space 100 is lower than the minimum indoor temperature Tmin, and the air temperature control process may include a process of increasing in temperature T of the air supplied to the indoor space 100 when the decreasing air supply amount Q is equal to or less than the minimum air supply amount Qmin. ADVANTAGEOUS EFFECTS
[0020] The present invention may provide the floor air conditioning system, in which the method for increasing / decreasing in air supply amount and the method for controlling the temperature of the supplied air are efficiently combined with each other to increase / decrease in temperature of the indoor space, thereby reducing the energy consumption and minimizing the environmental damage. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] FIG. 1 and following drawings illustrate embodiments of the present invention,
[0022] FIG. 1 is a view illustrating a configuration of a floor air conditioning system.
[0023] FIG. 2 is a block diagram illustrating a first embodiment of a floor air conditioning method.
[0024] FIG. 3 is a block diagram illustrating a second embodiment of the floor air conditioning method. MODE FOR CARRYING OUT THE INVENTION
[0025] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0026] As illustrated in FIG. 1 and following drawings, a floor air conditioning system according to the present invention includes a method for supplying air from a floor space 110 to an indoor space 100 through a plurality of discharge holes 121 defined in a floor part 120 installed between the floor space 110 and the indoor space 100 due to a pressure difference between the floor space 110 and the indoor space 100.
[0027] The pressure difference between the floor space 110 and the indoor space 100 is generated by a fan or pump P that supplies air to the floor space 110 and suctions air from a ceiling space 130.
[0028] The floor air conditioning system includes an air supply unit 200, a temperature control unit 300, a lower temperature sensor 101, an upper temperature sensor 102, and a controller.
[0029] The air supply unit 200 suctions external air to supply the air to the floor space 110.
[0030] The temperature control unit 300, which is constituted by a heating device or a cooling device, controls a temperature T of the air supplied to the floor space 110.
[0031] The lower temperature sensor 101 is installed at a height of 100 mm from the floor part 120 to measure a lower temperature T1 of the indoor space 100, which is a temperature felt by a feet of a resident.
[0032] The upper temperature sensor 102 is installed at a height of 1,100 mm to 1,700 mm from the bottom part 120 to measure an upper temperature T2 of the indoor space 100, which is a temperature felt by a face of the resident.
[0033] Since heavier cold air remains at a lower portion of the indoor space 100 compared to warmer air, the lower temperature sensor 101 measures a temperature of the coldest air within the indoor space 100, and the upper temperature sensor 102 measures a temperature of the relatively warmer air.
[0034] Thus, whether the temperature of the indoor space 100 is too cold is determined on the basis of the lower temperature T1 measured by the lower temperature sensor 101, and whether the temperature of the indoor space 100 is too hot is determined on the basis of the upper temperature T2 measured by the upper temperature sensor 102.
[0035] The controller controls the air supply unit 200 and the temperature control unit 300 on the basis of the lower temperature T1 measured by the lower temperature sensor 101 and the upper temperature T2 measured by the upper temperature sensor 102.
[0036]
[0037] In detail, the controller sets a minimum air supply amount Qmin and a maximum air supply amount Qmax of the air supply unit 200 so that the pressure difference between the floor space 110 and the indoor space 100 is within a set pressure range (10 Pa to 20 Pa).
[0038] A maximum indoor temperature Tmax and a minimum indoor temperature Tmin of the indoor space 100 are set so that a temperature range between the maximum indoor temperature Tmax and the minimum indoor temperature Tmin is within a set temperature range.
[0039] When the lower temperature T1 measured by the lower temperature sensor 101 or the upper temperature T2 measured by the upper temperature sensor 102 get out of the set temperature range, the controller controls the air supply unit 200 and the temperature control unit 300 as follows, so that the temperature of the indoor space 100 is within the set temperature range.
[0040] Before controlling the temperature control unit 300, the temperature of the indoor space 100 is controlled by increasing or decreasing in air supply amount Q of the air supply unit 200.
[0041] In the winter season, heating air is supplied, and in the summer season, cooling air is supplied. Thus, the temperature of the indoor space 100 may be controlled to some extent simply by increasing or decreasing in air supply amount Q.
[0042] Even if the increasing air supply amount Q is equal to or greater than the maximum air supply amount Qmax, or the decreasing air supply amount Q is equal to or less than the minimum air supply amount Qmin, the temperature control unit 300 is controlled only when the temperature of the indoor space 100 gets out of the set temperature range.
[0043] When the increasing air supply amount Q is equal to or greater than the maximum air supply amount Qmax, or when the decreasing air supply amount Q is equal to or less than the minimum air supply amount Qmin, the pressure difference between the floor space 110 and the indoor space 100 gets out of the set pressure range (10 Pa to 20 Pa) to prevent stable air conditioning of the floor space 110. Thus, in this case, the indoor temperature is no longer controlled by increasing or decreasing in air supply amount, and the temperature control unit 300 is used instead.
[0044] That is, regardless of the increase or decrease in air supply amount Q, if the temperature of the indoor space 100 does not reach the set temperature range, the heating device or cooling device of the temperature control unit 300 is controlled to increase or decrease in temperature of the supplied air.
[0045] This allows for minimization of an operation of the heating or cooling device, which consume a large amount of power. As a result, it is possible to reduce energy consumption and minimize environmental damage.
[0046]
[0047] Hereinafter, a description will be given in detail with regard to the case of the heating during the winter season (FIG. 2).
[0048] During the winter season, air at a temperature higher than an external temperature is supplied to the indoor space 100 by the heating device, and the controller controls the air supply unit 200 and the temperature control unit 300 as follows.
[0049]
[0050] 1) When the lower temperature T1 measured by the lower temperature sensor 101 is lower than the minimum indoor temperature Tmin (when the indoor temperature is too low during the cold season).
[0051] When the lower temperature T1 (a temperature of a cold area within the indoor space) is lower than the minimum indoor temperature Tmin, it indicates that the temperature of the indoor space 100 is not warm during the winter season, and thus, the air supply amount Q of the heating air by the air supply unit 200 increases.
[0052] If the lower temperature T1 of the indoor space 100 is higher than the minimum indoor temperature Tmin before the increasing air supply amount Q is equal to or greater than the maximum air supply amount Qmax, the increase in air supply amount Q by the air supply unit 200 is stopped.
[0053] When the increasing air supply amount Q is equal to or greater than the maximum air supply amount Qmax, the pressure difference between the floor space 110 and the indoor space 100 gets out of the set pressure range (10 Pa to 20 Pa) to prevent stable floor air conditioning. Thus, even though the lower temperature T1 of the indoor space 100 does not increase more than the minimum indoor temperature Tmin, the increase in air supply amount Q by the air supply unit 200 is stopped.
[0054] Instead, the temperature T of the air supplied by the heating device of the temperature control unit 300 increases, and thus, the lower temperature T1 of the indoor space 100 increases.
[0055] The increase in lower temperature T1 of the indoor space 100 (i.e., the temperature of the cold area within the indoor space) naturally indicates an increase in upper temperature T2 of the indoor space 100 (i.e., a temperature of a hot area within the indoor space).
[0056]
[0057] 2) When the upper temperature T2 measured by the lower temperature sensor 101 is higher than the maximum indoor temperature Tmax (when the indoor temperature is too high during the winter season).
[0058] If the upper temperature T2 (the temperature of the hot area within the indoor space) is higher than the maximum indoor temperature Tmax, it indicates that the temperature of the indoor space 100 is excessively warm during the winter season. Thus, the air supply amount Q of the heating air by the air supply unit 200 decreases.
[0059] If the upper temperature T2 of the indoor space 100 is lower than the maximum indoor temperature Tmax before the decreasing air supply amount Q is equal to or less than the minimum air supply amount Qmin, the decrease in air supply amount Q by the air supply unit 200 is stopped.
[0060] When the decreasing air supply amount Q is equal to or less than the minimum air supply amount Qmin, the pressure difference between the floor space 110 and the indoor space 100 gets out of the set pressure range (10 Pa to 20 Pa) to prevent the stable floor air conditioning. Thus, even though the upper temperature T2 of the indoor space 100 does not decrease more than the maximum indoor temperature Tmax, the decrease in air supply amount Q by the air supply unit 200 is stopped.
[0061] Instead, the temperature T of the air supplied by the heating device of the temperature control unit 300 decreases (e.g., stopping of the operation of the heating device), the upper temperature T2 of the indoor space 100 decreases.
[0062] The decrease in upper temperature T2 of the indoor space 100 (i.e., the temperature of the hot area of the indoor space) naturally indicates a decrease in lower temperature T1 of the indoor space 100 (i.e., the temperature of the cold area of the indoor space).
[0063]
[0064] Hereinafter, a description will be given in detail with regard to cooling operation during the summer season (FIG. 3).
[0065] During the summer season, air at a temperature lower than the external temperature is supplied to the indoor space 100 by the cooling device, and the controller controls the air supply unit 200 and the temperature control unit 300 as follows.
[0066]
[0067] 1) When the upper temperature T2 measured by the upper temperature sensor 102 is higher than the maximum indoor temperature Tmax (in the case in which the indoor temperature is too high during the summer season).
[0068] When the upper temperature T2 (the temperature of the hot area within the indoor space) is higher than the maximum indoor temperature Tmax, it indicates that the temperature of the indoor space 100 is not cool during the summer season. Thus, the air supply amount Q of the cooling air by the air supply unit 200 increases.
[0069] If the upper temperature T2 of the indoor space 100 is lower than the maximum indoor temperature Tmax before the increasing air supply amount Q is equal to or greater than the maximum air supply amount Qmax, the increase in air supply amount Q by the air supply unit 200 is stopped.
[0070] When the increasing air supply amount Q is equal to or greater than the maximum air supply amount Qmax, the pressure difference between the floor space 110 and the indoor space 100 gets out of the set pressure range (10 Pa to 20 Pa) to prevent the stable floor air conditioning. Thus, even though the upper temperature T2 of the indoor space 100 does not decrease more than the maximum indoor temperature Tmax, the increase in air supply amount Q by the air supply unit 200 is stopped.
[0071] Instead, the temperature T of the air supplied by the cooling device of the temperature control unit 300 decreases, and thus, the upper temperature T2 of the indoor space 100 decreases.
[0072] The decrease in upper temperature T2 of the indoor space 100 (i.e., the temperature of the hot area within the indoor space) naturally indicates a decrease in lower temperature T1 of the indoor space 100 (i.e., the temperature of the cold area within the indoor space).
[0073]
[0074] 2) When the lower temperature T1 measured by the lower temperature sensor 101 is lower than the minimum indoor temperature Tmin (in the case in which the indoor temperature is too low during the summer season).
[0075] If the lower temperature T1 (the temperature of the cold area within the indoor space) is lower than the minimum indoor temperature Tmin, it indicates that the temperature of the indoor space 100 is excessively low during the summer season, and thus, the air supply amount Q of the cooling air by the air supply unit 200 decreases.
[0076] If the lower temperature T1 of the indoor space 100 is higher than the minimum indoor temperature Tmin before the decreasing air supply amount Q is equal to or less than the minimum air supply amount Qmin, the decrease in air supply amount Q by the air supply unit 200 is stopped.
[0077] When the decreasing air supply amount Q is equal to or less than the minimum air supply amount Qmin, the pressure difference between the floor space 110 and the indoor space 100 gets out of the set pressure range (10 Pa to 20 Pa) to prevent the stable floor air conditioning. Thus, even though the lower temperature T1 of the indoor space 100 does not increase more than the minimum indoor temperature Tmin, the decrease in air supply amount Q by the air supply unit 200 is stopped.
[0078] Instead, the temperature T of the air supplied by the cooling device of the temperature control unit 300 increases (e.g., stopping of the operation of the cooling device), the lower temperature T1 of the indoor space 100 increases.
[0079] The increase in lower temperature T1 of the indoor space 100 (i.e., the temperature of the cold area within the indoor space) naturally indicates an increase in upper temperature T2 (i.e., the temperature of the hot area within the indoor space).
[0080]
[0081] The floor air conditioning method according to the present invention relates to a method for supplying the air from the floor space 110 to the indoor space 100 through the plurality of discharge holes 121 defined in the floor part 120 installed between the floor space 110 and the indoor space 100 due to the pressure difference the floor space 110 and the indoor space 100.
[0082] This is accomplished through following processes.
[0083] To ensure that the pressure difference between the floor space 110 and the indoor space 100 is within the set pressure range, the minimum air supply amount Qmin and the maximum air supply amount Qmax to the indoor space 100 are set. (Air supply amount setting process)
[0084] The maximum indoor temperature Tmax and the minimum indoor temperature Tmin of the indoor space 100 are set, and a set temperature range (optimal temperature range) that is a range between the maximum indoor temperature Tmax and the minimum indoor temperature Tmin. (Temperature range setting process)
[0085] When the lower temperature T1 or the upper temperature T2 of the indoor space 100 gets out of the set temperature range, the air supply amount Q to the indoor space 100 increases or decreases so that the temperature of the indoor space 100 is within the set temperature range. (Air supply amount control process)
[0086] In the case in which the temperature of the air supplied to the indoor space 100 gets out of the set temperature range, even though the increasing air supply amount Q is equal to or greater than the maximum air supply amount Qmax, or the decreasing air supply amount Q is equal to or less than the minimum air supply amount Qmin, the temperature T of the air supplied to the indoor space 100 increases or decreases (Air temperature control process).
[0087]
[0088] Hereinafter, the floor air conditioning method for the heating during the winter season is described in detail (FIG. 2).
[0089] During the winter season, air having a temperature higher than the external temperature is supplied to the indoor space 100.
[0090]
[0091] 1) When the lower temperature T1 is lower than the minimum indoor temperature Tmin (when the indoor temperature is too low during the winter season).
[0092] When the lower temperature T1 (a temperature of a cold area within the indoor space) is lower than the minimum indoor temperature Tmin, it indicates that the temperature of the indoor space 100 is not warm during the winter season, and thus, the air supply amount Q of the heating air to the indoor space 100 increases.
[0093] If the lower temperature T1 of the indoor space 100 is higher than the minimum indoor temperature Tmin before the increasing air supply amount Q is equal to or greater than the maximum air supply amount Qmax, the increase in air supply amount Q to the indoor space 100 is stopped.
[0094] When the increasing air supply amount Q is equal to or greater than the maximum air supply amount Qmax, the pressure difference between the floor space 110 and the indoor space 100 gets out of the set pressure range (10 Pa to 20 Pa) to prevent stable floor air conditioning. Thus, even though the lower temperature T1 of the indoor space 100 does not increase more than the minimum indoor temperature Tmin, the increase in air supply amount Q to the indoor space 100 is stopped.
[0095] Instead, the temperature T of the air supplied to the indoor space 100 increases, and thus, the lower temperature T1 of the indoor space 100 increases.
[0096] The increase in lower temperature T1 of the indoor space 100 (i.e., the temperature of the cold area within the indoor space) naturally indicates an increase in upper temperature T2 of the indoor space 100 (i.e., a temperature of a hot area within the indoor space).
[0097]
[0098] 2) When the upper temperature T2 is higher than the maximum indoor temperature Tmax (when the indoor temperature is too high during the winter season).
[0099] If the upper temperature T2 (the temperature of the hot area within the indoor space) is higher than the maximum indoor temperature Tmax, it indicates that the temperature of the indoor space 100 is excessively warm during the winter season. Thus, the air supply amount Q of the heating air to the indoor space 100 decreases.
[00100] If the upper temperature T2 of the indoor space 100 is lower than the maximum indoor temperature Tmax before the decreasing air supply amount Q is equal to or less than the minimum air supply amount Qmin, the decrease in air supply amount Q to the indoor space 100 is stopped.
[00101] When the decreasing air supply amount Q is equal to or less than the minimum air supply amount Qmin, the pressure difference between the floor space 110 and the indoor space 100 gets out of the set pressure range (10 Pa to 20 Pa) to prevent the stable floor air conditioning. Thus, even though the upper temperature T2 of the indoor space 100 does not decrease more than the maximum indoor temperature Tmax, the decrease in air supply amount Q to the indoor space 100 is stopped.
[00102] Instead, the temperature T of the air supplied to the indoor space of the temperature control unit 100 decreases (e.g., stopping of the operation of the heating device), the upper temperature T2 of the indoor space 100 decreases.
[00103] The decrease in upper temperature T2 of the indoor space 100 (i.e., the temperature of the hot area of the indoor space) naturally indicates a decrease in lower temperature T1 of the indoor space 100 (i.e., the temperature of the cold area of the indoor space).
[00104]
[00105] Hereinafter, the floor air conditioning method for the cooling during the summer season will be described in detail (FIG. 3).
[00106] During the summer season, air having a temperature lower than the external temperature is supplied to the indoor space 100.
[00107]
[00108] 1) When the upper temperature T2 is higher than the maximum indoor temperature Tmax (when the indoor temperature is too high during the summer season).
[00109] When the upper temperature T2 (the temperature of the hot area within the indoor space) is higher than the maximum indoor temperature Tmax, it indicates that the temperature of the indoor space 100 is not cool during the summer season. Thus, the air supply amount Q of the cooling air to the indoor space 100 increases.
[00110] If the upper temperature T2 of the indoor space 100 is lower than the maximum indoor temperature Tmax before the increasing air supply amount Q is equal to or greater than the maximum air supply amount Qmax, the increase in air supply amount Q to the indoor space 100 is stopped.
[00111] When the increasing air supply amount Q is equal to or greater than the maximum air supply amount Qmax, the pressure difference between the floor space 110 and the indoor space 100 gets out of the set pressure range (10 Pa to 20 Pa) to prevent the stable floor air conditioning. Thus, even though the upper temperature T2 of the indoor space 100 does not decrease more than the maximum indoor temperature Tmax, the increase in air supply amount Q to the indoor space 100 is stopped.
[00112] Instead, the temperature T of the air supplied to the indoor space 100 decreases, and thus, the upper temperature T2 of the indoor space 100 decreases.
[00113] The decrease in lower temperature T1 of the indoor space 100 (i.e., the temperature of the cold area within the indoor space) naturally indicates a decrease in upper temperature T2 (i.e., the temperature of the hot area within the indoor space).
[00114]
[00115] 2) When the lower temperature T1 is lower than the minimum indoor temperature Tmin (in the case in which the indoor temperature is too low during the summer season).
[00116] If the lower temperature T1 (the temperature of the cold area within the indoor space) is lower than the minimum indoor temperature Tmin, it indicates that the temperature of the indoor space 100 is excessively low during the summer season, and thus, the air supply amount Q of the cooling air to the indoor space 100 decreases.
[00117] If the lower temperature T1 of the indoor space 100 is higher than the minimum indoor temperature Tmin before the decreasing air supply amount Q is equal to or less than the minimum air supply amount Qmin, the decrease in air supply amount Q to the indoor space 100 is stopped.
[00118] When the decreasing air supply amount Q is equal to or less than the minimum air supply amount Qmin, the pressure difference between the floor space 110 and the indoor space 100 gets out of the set pressure range (10 Pa to 20 Pa) to prevent the stable floor air conditioning. Thus, even though the lower temperature T1 of the indoor space 100 does not increase more than the minimum indoor temperature Tmin, the decrease in air supply amount Q to the indoor space 100 is stopped.
[00119] Instead, the temperature T of the air supplied by the cooling device of the temperature control unit 300 increases (e.g., stopping of the operation of the cooling device), the lower temperature T1 of the indoor space 100 increases.
[00120] The increase in lower temperature T1 of the indoor space 100 (i.e., the temperature of the cold area within the indoor space) naturally indicates an increase in upper temperature T2 (i.e., the temperature of the hot area within the indoor space).
[00121]
[00122] Although the description merely corresponds to some exemplary embodiments that may be implemented by the present invention, as well known, the scope of the present invention should not be interpreted as being limited to the abovedescribed embodiments, and all technical spirits having the same basis as that of the above-described technical spirit of the present invention are included in the scope of the present invention.
[00123] *** Description of the Symbols***
[00124] 100 : Indoor space 101 : Lower temperature sensor
[00125] 102 : Upper temperature sensor 110 : Floor space
[00126] 120 : Floor part 121 : Discharge hole
[00127] 200 : Air supply unit 300 : Temperature control unit
[00128] Q : Air supply amount Qmax : Maximum air supply amount
[00129] Qmin : Minimum air supply amount T : Temperature of supplied air
[00130] T1 : Lower temperature T2 : Upper temperature
[00131] Tmax : Maximum indoor temperature Tmin : Minimum indoor temperature
Claims
1. A floor air conditioning system, in which air is supplied from a floor space (110) to an indoor space (100) through a plurality of discharge holes (121), which are defined in a floor part (120) installed between the floor space (110) and the indoor space (100), due to a pressure difference between the floor space (110) and the indoor space (100), the floor air conditioning system comprising:an air supply unit (200) configured to supply air to the floor space (110);a temperature control unit (300) configured to control a temperature (T) of the air supplied from the floor space (110) by a heating device or a cooling device;a lower temperature sensor (101) installed to measure a lower temperature (T1) of the indoor space (100);an upper temperature sensor (102) installed to measure an upper temperature (T2) of the indoor space (100); anda controller configured to control the air supply unit (200) and the temperature control unit (300) on the basis of the lower temperature (T1) measured by the lower temperature sensor (101) and the upper temperature (T2) measured by the upper temperature sensor (102),wherein the controller is configured to:set a minimum air supply amount (Qmin) and a maximum air supply amount (Qmax) of the air supply unit (200) so that the pressure difference between the floor space (110) and the indoor space (100) is within a set pressure range;set a maximum indoor temperature (Tmax) and a minimumindoor temperature (Tmin) of the indoor space (100);increase or decrease in air supply amount (Q) of the air supply unit (200) so that the temperature of the indoor space (100) is maintained within a set temperature range between the maximum indoor temperature (Tmax) and the minimum indoor temperature (Tmin) when the lower temperature (T1) measured by the lower temperature sensor (101) or the upper temperature (T2) measured by the upper temperature sensor (102) gets out of the set temperature range; andcontrol the temperature control unit (300) when the temperature of the indoor space (100) gets out of the set temperature range in spite of the increasing air supply amount (Q) being equal to or greater than the maximum air supply amount (Qmax) or the decreasing air supply amount (Q) being less than or equal to the minimum air supply amount (Qmin).
2. The floor air conditioning system of claim 1, wherein, in case of heating during a winter season, in which air having a temperature higher than an external temperature is supplied by the heating device, the controller is configured to:increase in air supply amount (Q) by the air supply unit (200) when the lower temperature (T1) measured by the lower temperature sensor (101) is lower than the minimum indoor temperature (Tmin); andincrease in temperature (T) of the air supplied by the temperature control unit (300) when the increasing air supply amount (Q) is equal to or greater than the maximum air supplyamount (Qmax).
3. The floor air conditioning system of claim 2, wherein, when the upper temperature (T2) measured by the upper temperature sensor (102) is higher than the maximum indoor temperature (Tmax), the air supply amount (Q) by the air supply unit (200) decreases, andwhen the decreasing air supply amount (Q) is equal to or less than the minimum air supply amount (Qmin), the temperature (T) of the air supplied by the temperature control unit (300) decreases.
4. The floor air conditioning system of claim 1, wherein, in case of cooling during a summer season, in which air having a temperature lower than an external temperature is supplied by the cooing device, the controller is configured to:increase in air supply amount (Q) by the air supply unit (200) when the upper temperature (T2) measured by the upper temperature sensor (102) is higher than the maximum indoor temperature (Tmax); anddecrease in temperature (T) of the air supplied by the temperature control unit (300) when the increasing air supply amount (Q) is equal to or greater than the maximum air supply amount (Qmax).
5. The floor air conditioning system of claim 4, wherein,when the lower temperature (T1) measured by the lower temperature sensor (101) is lower than the minimum indoor temperature (Tmin), the air supply amount (Q) by the air supply unit (200) decreases, andwhen the decreasing air supply amount (Q) is equal to or less than the minimum air supply amount (Qmin), the temperature (T) of the air supplied by the temperature control unit (300) increases.
6. A floor air conditioning method, in which air is supplied from a floor space (110) to an indoor space (100) through a plurality of discharge holes (121), which are defined in a floor part (120) installed between the floor space (110) and the indoor space (100), due to a pressure difference between the floor space (110) and the indoor space (100), the floor air conditioning method comprising:an air supply amount setting process of settinga minimum air supply amount (Qmin) and a maximum air supply amount (Qmax) to the indoor space (100) so that a pressure difference between the floor space (110) and the indoor space (100) is within a set pressure range;a temperature range setting process of setting a maximum indoor temperature (Tmax) and a minimum indoor temperature (Tmin) of the indoor space (100) and determining a set temperature range that is a range between the maximum indoor temperature (Tmax) and the minimum indoor temperature (Tmin);an air supply amount control process of increasing or decreasing in air supply amount (Q) to the indoor space (100)so that the temperature of the indoor space (100) is within the set temperature range when a lower temperature (T1) or an upper temperature (T2) of the indoor space (100) gets out of the set temperature range; andan air temperature control process of increasing or decreasing in temperature (T) of the air supplied to the indoor space (100) when the temperature of the indoor space (100) gets out of the set temperature range even though the increasing air supply amount (Q) is equal to or greater than the maximum air supply amount (Qmax), or the decreasing air supply amount (Q) is equal to or less than the minimum air supply amount (Qmin).
7. The floor air conditioning method of claim 6, wherein, in case of heating during a winter season, in which air having a temperature higher than an external temperature is supplied to the indoor space (100),the air supply amount control process comprises a process of increasing in air supply amount (Q) when the lower temperature (T1) of the indoor space (100) is lower than the minimum indoor temperature (Tmin), andthe air temperature control process comprises a process of increasing in temperature (T) of the air supplied to the indoor space (100) when the increasing air supply amount (Q) is equal to or greater than the maximum air supply amount (Qmax).
8. The floor air conditioning method of claim 7, whereinthe air supply amount control process comprises a process of decreasing in air supply amount (Q) to the indoor space (100) when the upper temperature (T2) of the indoor space (100) is higher than the maximum indoor temperature (Tmax), andthe air temperature control process comprises a process of decreasing in temperature (T) of the air supplied to the indoor space (100) when the decreasing air supply amount (Q) is equal to or less than the minimum air supply amount (Qmin).
9. The floor air conditioning method of claim 6, wherein, in case of cooling during a summer season, in which air having a temperature lower than an external temperature is supplied to the indoor space (100),the air supply amount control process comprises a process of increasing in air supply amount (Q) to the indoor space (100) when the upper temperature (T2) of the indoor space (100) is higher than the maximum indoor temperature (Tmax), andthe air temperature control process comprises a process of decreasing in temperature (T) of the air supplied to the indoor space (100) when the increasing air supply amount (Q) is equal to or greater than the maximum air supply amount (Qmax).
10. The floor air conditioning method of claim 9, wherein the air supply amount control process comprises a process of decreasing in air supply amount (Q) to the indoor space (100) when the lower temperature (T1) of the indoor space (100) islower than the minimum indoor temperature (Tmin), and the air temperature control process comprises a processof increasing in temperature (T) of the air supplied to the indoor space (100) when the decreasing air supply amount (Q) is equal to or less than the minimum air supply amount (Qmin).