JP2007276611A - Air conditioner - Google Patents

Abstract

An object of the present invention is to suppress a decrease in oxygen enrichment performance of oxygen enrichment means when circulating the inside air of a passenger compartment.
When an oxygen enrichment device is in operation, even if the inside air mode is set, outside air is introduced and the inside of the trunk room is ventilated, so that oxygen in the air in the trunk room is always kept. The concentration is maintained substantially constant, and the oxygen enrichment device 12 installed in the trunk room 13 is made to sufficiently exhibit the oxygen enrichment performance.
[Selection] Figure 1

Description

  The present invention relates to an air conditioner that includes oxygen enriching means for increasing the oxygen concentration of air and harmonizes the air in the passenger compartment.

  As an air conditioner that harmonizes the air in the passenger compartment, an oxygen enrichment device (oxygen enrichment means) installed in the passenger compartment or in a trunk room that communicates with the interior of the passenger compartment allows the air from the passenger compartment or the trunk room to enter the passenger compartment. There is one in which the oxygen concentration of supplied air is increased (for example, see Patent Document 1).

Here, the oxygen-enriching device creates air containing a high concentration of oxygen from the surrounding air, so that the oxygen concentration of the surrounding air decreases. For this reason, when the inside air mode in which the inside air of the passenger compartment is circulated is implemented, the air around the oxygen enrichment device is shielded from the outside air, and the oxygen concentration remains low. When the oxygen enrichment apparatus is operated when it is implemented, the oxygen enrichment apparatus has a problem that the oxygen concentration of air cannot be sufficiently increased.
JP 2005-112119 A

  In consideration of the above facts, the present invention aims to suppress a decrease in oxygen enrichment performance of the oxygen enrichment means.

  The air conditioning apparatus according to claim 1, wherein the air enrichment device is configured to increase an oxygen concentration of air supplied into the vehicle interior by being operated, and the vehicle compartment or the vehicle compartment in which the oxygen enrichment device is installed. When the outside air mode is executed, outside air is introduced into the installation room, and when the inside air mode is executed and the oxygen enrichment means is not operated, the outside air is not introduced into the installation room. And an outside air introducing means for executing the inside air mode and introducing outside air into the installation chamber when the oxygen enrichment means is operated.

  In the air conditioner according to claim 1, oxygen enrichment means is installed in an installation room which is a vehicle room or a room other than the vehicle compartment, and the air whose oxygen concentration is increased by the oxygen enrichment means is Supplied indoors. Further, the outside air introduction means introduces outside air into the installation room when executing the outside air mode.

  Here, the outside air introduction means does not introduce outside air into the installation room when the oxygen enrichment means is not activated when the inside air mode is executed, but if the oxygen enrichment means is activated, the outside air is not introduced into the installation room. Introduce. Thereby, since the fall of the oxygen concentration of the air in an installation room can be suppressed, the fall of the oxygen enrichment performance of an oxygen enrichment means can be suppressed.

  The air conditioner according to claim 2 is the air conditioner according to claim 1, wherein the outside air introduction means executes an inside air mode and the installation chamber is operated when the oxygen enrichment means is operated. The introduction amount per unit time of the outside air introduced into is reduced compared to the introduction amount per unit time of the outside air introduced into the installation room when the outside air mode is executed.

  In the air conditioning apparatus according to claim 2, the amount of outside air introduced into the installation room when the inside air mode is executed by the outside air introduction unit and the oxygen enrichment unit is operated is determined by the outside air introduction unit. This is less than the amount of outside air introduced into the installation room per unit time when the mode is executed.

  As a result, the amount of outside air introduced into the installation chamber when the inside air mode is executed by the outside air introducing means and the oxygen enriching means is operated is minimized so that the deterioration of the oxygen enrichment performance of the oxygen enriching means can be suppressed. Can be in quantity.

  An air conditioner according to claim 3 is the air conditioner according to claim 1 or 2, wherein the outside air introduction means executes an inside air mode and the oxygen enrichment means is operated when the oxygen enrichment means is operated. It is characterized by intermittently introducing outside air into the installation room.

  In the air conditioner according to the third aspect, the outside air introduction means introduces outside air into the installation room when the inside air mode is executed and the oxygen enrichment means is operated. As a result, the amount of outside air introduced into the installation chamber when the inside air mode is executed by the outside air introducing means and the oxygen enriching means is operated is minimized so that the deterioration of the oxygen enrichment performance of the oxygen enriching means can be suppressed. Can be in quantity.

  As described above, it is possible to suppress a decrease in oxygen enrichment performance of the oxygen enrichment means.

  Next, 1st Embodiment of the air conditioning apparatus of this invention is described according to FIG. 1 thru | or FIG.

  In the figure, the arrow FR indicates the vehicle forward direction, and the arrow UP indicates the vehicle upward direction.

  As shown in FIG. 1, an air conditioner 10 for a vehicle according to the present embodiment includes an oxygen enrichment device 12 installed in a trunk room 13 as an installation room communicated with a vehicle compartment 11, and an oxygen enrichment device 12. One end is connected to the hose 14, and the other end air outlet 14 </ b> A is disposed on the ceiling in the passenger compartment 11, and an outside air introduction mechanism 50. The outside air introduction mechanism 50 includes an air conditioner blower unit 16 disposed between the cowl 15 and the instrument panel 17, an air vent 52 disposed in a wall portion that partitions the vehicle compartment 11 and the trunk room 13, and an air vent 52. An opening / closing mechanism 54 for opening and closing and an exhaust port 19 disposed in the trunk room 13 are provided.

  2, the air conditioner blower unit 16 accommodates the blower 18, the blower 18, the housing 20 provided with the outside air inlet 20A, the inside air inlet 20B, and the air outlet 20C, and the outside air inlet. An outside air introduction restricting section 30 that enables or blocks the introduction of outside air from 20A.

  The outside air introduction restriction unit 30 includes an inside / outside air damper 22 that opens and closes the outside air suction port 20 </ b> A and the inside air suction port 20 </ b> B of the housing 20, and a servo motor 24 that moves the inside / outside air damper 22. The servo motor 24, the blower 18, and the opening / closing mechanism 54 are controlled by an ECU 26 as a control means.

  The inside / outside air damper 22 is moved by the servo motor 24 to close the outside air suction port 20A and open the inside air suction port 20B (shown by a solid line in FIG. 2A), and to open the outside air suction port 20A to suck in the inside air. It is displaced between the position where the mouth 20B is closed (illustrated by a dotted line in FIG. 2A). When the inside air mode is set, the blower 18 is operated in a state where the vent 52 is closed by the opening / closing mechanism 54, the outside air inlet 20A is closed by the inside / outside air damper 22, and the inside air inlet 20B is opened. Is done. As a result, the inside air of the compartment 11 is sucked from the inside air suction port 20B and blown into the compartment 11 from the air outlet 20C, and the inside air of the compartment 11 is circulated.

  When the outside air mode is set, the blower 18 is opened with the vent 52 opened by the opening / closing mechanism 54, the outside air inlet 20A is opened by the inside / outside air damper 22, and the inside air inlet 20B is closed. Is activated. As a result, outside air is sucked from the outside air inlet 20A and blown into the passenger compartment 11 from the air outlet 20C, and the inside air mixed with a part of the outside air in the passenger compartment 11 flows into the trunk room 13 and is exhausted. 19 is exhausted.

  Here, when the oxygen enricher 12 is operated, a SW signal is input to the ECU 26. The ECU 26 changes the control method of the servo motor 24 depending on whether or not the SW signal is received. Hereinafter, a method for controlling the servo motor 24 by the ECU 26 will be described.

  As shown in the flowchart of FIG. 3, first, in step 1, it is determined whether or not the SW signal is input, that is, whether or not the oxygen enricher 12 is operated. Transition. In step 2, it is determined whether or not the inside air mode is set. If the determination is affirmative, the process proceeds to step 3.

  In Step 3, the servo motor 24 is operated, and the inside / outside air damper 22 is displaced toward the inside air suction port 20B as shown in FIG. 2B, and the outside air suction port 20A is slightly opened. The vent 52 is opened by the opening / closing mechanism 54. The inside air inlet 20B is open. As a result, as shown in FIG. 4, the inside air circulation path 1 through which the inside air in the passenger compartment 11 circulates is formed, and the inside air in the passenger compartment 11 partially mixed with outside air flows into the trunk room 13 and exhausts from the exhaust port 19. A ventilation path 2 is formed.

  Here, as shown in FIG. 5, the oxygen enricher 12 sucks air A <b> 0 in the trunk room 13 and creates air A <b> 1 containing high concentration oxygen. Air A1 containing high-concentration oxygen produced by the oxygen enricher 12 is supplied into the passenger compartment 11 by a hose 14. On the other hand, since the air A2 having a low oxygen concentration is exhausted from the oxygen enrichment device 12, the operation of the oxygen enrichment device 12 is performed as indicated by a dotted line in the graph of FIG. 6 unless ventilation in the trunk room 13 is performed. As the time increases, the oxygen concentration of the air in the trunk room 13 decreases.

  Further, as shown in the graph of FIG. 7, as the oxygen concentration in the air around the oxygen enricher 12 decreases, the oxygen concentration in the air produced by the oxygen enricher 12 decreases. For this reason, unless the ventilation in the trunk room 13 is performed, the oxygen enrichment device 12 cannot sufficiently increase the oxygen concentration of the air supplied into the passenger compartment 11.

  Therefore, in the present embodiment, as described above, when the oxygen enricher 12 is in operation, even if the inside air mode is set, outside air is introduced and the inside of the trunk room 13 is ventilated. As indicated by a solid line in the graph of FIG. 6, the oxygen concentration of the air in the trunk room 13 is always maintained substantially constant so that the oxygen enrichment performance of the oxygen enricher 12 is sufficiently exhibited. As a result, the air that has been increased to the prescribed oxygen concentration can be supplied into the passenger compartment 11.

  Further, in the present embodiment, the introduction amount per unit time of the outside air into the trunk room 13 when the inside air mode is executed and the oxygen enrichment device 12 is operated is set in the trunk room 13 when the outside air mode is executed. It is less than the amount of outside air introduced per unit time.

  Thus, the amount of outside air introduced into the trunk room 13 when the inside air mode is executed and the oxygen enrichment device 12 is operated is the minimum amount that can suppress the deterioration of the oxygen enrichment performance of the oxygen enrichment device 12. Can be. Therefore, since the fluctuation | variation of the temperature / humidity in the vehicle interior 11 by external air can be suppressed, the power consumption of the air conditioning apparatus 10 can be reduced.

  Next, 2nd Embodiment of the air conditioning apparatus of this invention is described according to FIG. 8 thru | or FIG. In addition, the same code | symbol is attached | subjected to the structure similar to 1st Embodiment, and description is abbreviate | omitted.

  As shown in FIG. 8, an air conditioner 100 for a vehicle according to this embodiment has an oxygen enrichment device 12 installed in a passenger compartment 11, one end connected to the oxygen enrichment device 12, and the other end. The air outlet 23 </ b> A includes a hose 23 disposed on the ceiling in the passenger compartment 11 and an outside air introduction mechanism 60. The outside air introduction mechanism 60 includes an air conditioner blower unit 16 and an exhaust port 21 disposed in the passenger compartment 11.

  In addition, as shown in FIG. 2, the air conditioner blower unit 16 includes a blower 18, a housing 20, and an outside air introduction restriction unit 30. The servo motor 24 and the blower 18 are controlled by an ECU 28 as control means.

  Circulation of the inside air in the passenger compartment 11 is performed in the same manner as in the first embodiment. On the other hand, in the present embodiment, the passenger compartment 11 and the trunk compartment 13 are not communicated with each other, and ventilation is performed only in the passenger compartment 11. When the inside of the passenger compartment 11 is ventilated, the blower 18 is operated in a state in which the outside air suction port 20A is opened by the inside / outside air damper 22 and the inside air suction port 20B is closed, and the outside air is supplied to the outside air suction port. The air is sucked from 20A and blown into the passenger compartment 11 from the air outlet 20C. Then, the air in the passenger compartment 11 is exhausted from the exhaust port 21.

  Here, when the oxygen enricher 12 is operated, a SW signal is input to the ECU 28, and the ECU 28 changes the control method of the servo motor 24 depending on whether or not the SW signal is received. Hereinafter, a method for controlling the servo motor 24 by the ECU 28 will be described.

  As shown in the flowchart of FIG. 9, first, in step 100, it is determined whether or not the SW signal is input, that is, whether or not the oxygen enrichment device 12 has been operated. Transition. In step 101, it is determined whether or not the inside air mode is set. If the determination is affirmative, the process proceeds to step 102.

  In step 102, it is determined whether or not a predetermined time (T1) has elapsed. If the determination is affirmative, the process proceeds to step 103. In step 103, the servo motor 24 is operated for a predetermined time (T2), and as shown in FIG. 2B, the inside / outside air damper 22 is displaced toward the inside air suction port 20B, the outside air suction port 20B is opened, and the inside air suction is performed. The mouth 20A closes. As a result, outside air is sent into the passenger compartment 11 and exhausted from the exhaust port 21.

  Here, as described above, when the oxygen enrichment device 12 is in operation, air having a low oxygen concentration is exhausted from the oxygen enrichment device 12, so that unless the interior of the passenger compartment 11 is ventilated, FIG. As shown by the dotted line in the graph, the oxygen concentration of the air around the oxygen enricher 12 decreases.

  Further, as indicated by a dotted line in the graph of FIG. 7, as the oxygen concentration of the air around the oxygen enrichment device 12 decreases, the oxygen concentration of the air produced by the oxygen enrichment device 12 decreases. For this reason, unless the inside of the passenger compartment 11 is ventilated, the oxygen enricher 12 cannot sufficiently increase the oxygen concentration of the air in the passenger compartment 11.

  Therefore, in the present embodiment, even if the inside air mode is set, outside air is introduced for a certain time (T2) every time the oxygen enrichment device 12 is operated for a certain time (T1), and the interior of the passenger compartment 11 is intermittently generated. By (intermittently) ventilating, as shown by the solid line in the graph of FIG. 10, the oxygen concentration of the inside air of the passenger compartment 11 is maintained within a certain range, and the oxygen enrichment performance of the oxygen enrichment device 12 is sufficiently high. It is trying to be demonstrated. Thereby, the oxygen concentration of the inside air in the passenger compartment 11 can be increased to a specified value.

  In addition, the introduction of outside air is performed intermittently, and the time and amount of introducing outside air into the passenger compartment 11 are reduced compared to the first embodiment, so that the temperature and humidity fluctuations in the passenger compartment 11 due to the outside air are reduced. Since it can suppress, the power consumption of the air conditioning apparatus 100 can be reduced.

  Although the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to such embodiments, and various other embodiments are possible within the scope of the present invention. It is clear to the contractor. For example, in this embodiment, the oxygen enrichment device is installed in the trunk room or the passenger compartment, but it can also be installed in another space such as an engine room. In addition, it is possible to exchange the control method of the outside air introduction restriction unit 30 between the first embodiment and the second embodiment. Furthermore, in the second embodiment, it is not essential to completely stop the inside air circulation when the trunk room 13 is ventilated, and the trunk room 13 may be ventilated while the inside air circulation is being performed.

It is a sectional side view showing a vehicle provided with an air harmony device concerning a 1st embodiment of the present invention. (A), (B) is sectional drawing which shows the air-conditioning blower unit with which the air conditioning apparatus which concerns on 1st Embodiment of this invention is provided. It is a flowchart for demonstrating the control method of the air conditioning apparatus which concerns on 1st Embodiment of this invention. It is a figure which shows typically the flow of the air by the air conditioning apparatus which concerns on 1st Embodiment of this invention. It is a figure which shows typically the flow of the air by the oxygen enrichment apparatus with which the air conditioning apparatus which concerns on 1st Embodiment of this invention is provided. It is a graph which shows the relationship between the operating time of the oxygen enrichment apparatus in the air conditioning apparatus which concerns on 1st Embodiment of this invention, and the oxygen concentration of the air around the oxygen enrichment apparatus. It is a graph which shows the relationship between the oxygen concentration of the air around an oxygen enrichment apparatus, and the oxygen concentration of the air after oxygen enrichment by an oxygen enrichment apparatus. It is side sectional drawing which shows a vehicle provided with the air conditioning apparatus which concerns on 2nd Embodiment of this invention. It is a flowchart for demonstrating the control method of the air conditioning apparatus which concerns on 2nd Embodiment of this invention. It is a graph which shows the relationship between the operating time of the oxygen enrichment apparatus in the air conditioning apparatus which concerns on 2nd Embodiment of this invention, and the oxygen concentration of the air around the oxygen enrichment apparatus.

Explanation of symbols

10 Air conditioner 11 Car compartment (installation room)
12 Oxygen enrichment device (oxygen enrichment means)
13 Trunk room (installation room)
50 Outside air introduction mechanism (outside air introduction means)
60 Outside air introduction mechanism (outside air introduction means)

Claims (3)

Oxygen enrichment means for increasing the oxygen concentration of the air supplied into the passenger compartment by being actuated,
An installation room which is a room other than the vehicle room or the vehicle room in which the oxygen enrichment means is installed;
When the outside air mode is executed, outside air is introduced into the installation room, the inside air mode is executed, and when the oxygen enrichment means is not operated, the outside air is not introduced into the installation room, the inside air mode is executed, and the oxygen Outside air introduction means for introducing outside air into the installation room when the enrichment means is activated;
An air conditioner characterized by comprising:   The outside air introduction means executes an inside air mode and introduces the amount of outside air introduced into the installation room when the oxygen enrichment means is operated into the installation room when the outside air mode is executed. 2. The air conditioner according to claim 1, wherein the air conditioner is less than an introduction amount per unit time of outside air to be introduced.   The air conditioner according to claim 1 or 2, wherein the outside air introduction means intermittently introduces outside air into the installation chamber when the inside air mode is executed and the oxygen enrichment means is operated. .

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