Airflow generating system

Abstract

The invention discloses an airflow generating system. The present invention is provided with: a cold source (1) that is disposed on a roof panel (R) of a vehicle (V) and has a radiation cooling function; a roof trim (T); a cold air flow path (2) that is formed between the cold source (1) and the roof trim (T); an air inlet (3) that causes air in a vehicle cabin (50) to flow into the cold air flow path (2), and an air outlet (4) that causes air in the cold air flow path (2) to flow out into the vehicle cabin (50); and an air flow generator (5) for generating a circulating air flow (F2) in a direction from the air flow outlet (4) side to the air flow inlet (3) side in the vehicle cabin (50), thereby reducing the temperature of the whole vehicle cabin (50) with less energy.

Description

Technical Field

[0001] The present invention relates to an air flow generating system for reducing the temperature of a vehicle cabin in various vehicles such as automobiles. Background Art

[0002] At present, as an airflow generating system as described above, there is an airflow generating system described in Patent Document 1, for example. The airflow generating system described in Patent Document 1 includes an air conditioning device arranged on the roof of the vehicle and a circulation device arranged in the vehicle compartment. The air conditioning device introduces the air of the vehicle compartment into the air conditioning connection path from the air conditioning inlet, and blows the air cooled by the evaporator in the air conditioning connection path into the vehicle compartment from the air outlet. The circulation device includes a circulation blower, introduces the air transported from the air conditioning outlet toward the circulation inlet into the circulation connection path, and transports the air from the circulation outlet toward the air conditioning inlet.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2019-182118

[0006] Problems to be solved by the invention

[0007] However, the conventional airflow generating system as described above utilizes a circulation device disposed in the vehicle cabin to circulate cold air from an air-conditioning device disposed on the roof, i.e., a vehicle-mounted air conditioner, to perform regional air conditioning in the vehicle cabin. Therefore, a large amount of energy is required, for example, to lower the overall temperature of the vehicle cabin which becomes high temperature when parked. Summary of the invention

[0008] The present invention has been made in view of the above-mentioned conventional situation, and an object of the present invention is to provide an airflow generation system capable of reducing the temperature of the entire vehicle cabin with a small amount of energy.

[0009] Technical solutions to solve problems

[0010] The airflow generating system of the present invention comprises: a cold source, which is arranged on the roof panel of the vehicle and has a radiation cooling function of maintaining a temperature lower than the temperature of the vehicle cabin; a roof interior, which is arranged on the inner side of the roof panel; a cold air flow path, which is formed between the cold source and the roof interior; an air inlet, which allows the air in the vehicle cabin to flow into the cold air flow path; and an air outlet, which allows the air in the cold air flow path to flow out to the vehicle cabin. Moreover, the airflow generating system is characterized in that it comprises an airflow generator, which generates a cold airflow in the cold air flow path from the air inlet to the air outlet, and generates a circulating airflow in the vehicle cabin from the air outlet side to the air inlet side.

[0011] Effects of the Invention

[0012] The airflow generating system of the present invention utilizes an airflow generator to generate a cold airflow in the cold air flow path from the air inlet to the air outlet. That is, the airflow generating system utilizes a cold source with a radiation cooling function to cool the air in the vehicle compartment that flows into the cold air flow path from the air inlet. Therefore, a cold airflow is generated in the cold air flow path only by driving the airflow generator. Moreover, the airflow generating system causes the cold airflow to flow out from the air outlet to the vehicle compartment. Thus, a cold airflow, i.e., a circulating airflow, is generated in the vehicle compartment from the air outlet side to the air inlet side, thereby lowering the temperature of the vehicle compartment.

[0013] In this way, the airflow generating system of the present invention can generate the cold airflow in the cold air flow path and the circulating airflow in the vehicle cabin by only driving the airflow generator, and can reduce the temperature of the entire vehicle cabin with less energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a side view of a main part of a vehicle for explaining a first embodiment of the airflow generation system of the present invention.

[0015] Figure 2 is based on Figure 1 The cross-sectional view taken along line A-A (A), the cross-sectional view taken along line B-B (B), and the cross-sectional view taken along line CC (C).

[0016] Figure 3 In the second embodiment of the airflow generating system of the present invention, there is a horizontal cross-sectional illustration (A) illustrating a lateral wind direction adjustment mechanism, a vertical cross-sectional illustration (B) illustrating a lateral wind direction adjustment mechanism, and a vertical cross-sectional illustration (C) illustrating a longitudinal wind direction adjustment mechanism.

[0017] Figure 4 1 and 1 are a side view (A) of a vehicle main part illustrating a third embodiment of the airflow generation system of the present invention, and a side view (B) of a vehicle main part illustrating a fourth embodiment.

[0018] Figure 5 Each of the graphs shows the results of measuring the temperature of the heater portion (A), the temperature of the windshield portion (B), and the temperature of the roof portion (C) under different conditions.

[0019] Figure 6 Each of the graphs shows the results of measuring the temperature of the heater portion (A), the temperature of the windshield portion (B), and the temperature of the roof portion (C) while keeping the intake temperature constant and changing the conditions.

[0020] Figure 7 This is a graph showing the results of measuring the temperature change of the driver's seat in order to confirm the effect of the partition.

[0021] Figure 8 The graphs show the results of operating the defroster and measuring the gas phase temperature (A) of the driver's seat and the temperature of the roof portion.

[0022] Fig. 9 The graphs show the results of measuring the temperature of the roof portion (A), the temperature of the heater portion (B), and the gas phase temperature of the driver's seat (C) while changing the intake temperature. DETAILED DESCRIPTION

[0023] <First Embodiment>

[0024] Figure 1 The figure is a diagram for explaining a first embodiment of the airflow generating system of the present invention. In the figure, the left direction is the front, and the vehicle V shown in the figure has a roof panel R and a windshield WS, and has front seats FS and rear seats RS, as well as an instrument panel D and a steering wheel H in a vehicle cabin 50.

[0025] As the basic structure, Figure 1 The airflow generating system shown in the figure comprises a cooling source 1 which is arranged on the roof panel R of the vehicle V and has a radiation cooling function to maintain a temperature lower than the temperature of the vehicle cabin 50, a roof interior T arranged on the inner side of the roof panel R, and a cooling airflow path 2 formed between the cooling source 1 and the roof interior T. In addition, for convenience, Figure 1 Each structure is schematically shown, and the precise position and size of each structure are not limited to the illustration.

[0026] In addition, the airflow generating system includes an air inlet 3 for allowing air from the vehicle cabin 50 to flow into the cold air flow path 2, an air outlet 4 for allowing the air in the cold air flow path 2 to flow out to the vehicle cabin 50, and an airflow generator 5 for generating a cold air flow F1 in the cold air flow path 2 in a direction from the air inlet 3 to the air outlet 4. The airflow generating system generates a circulating airflow F2 in the vehicle cabin 50 in a direction from the air outlet 4 side to the air inlet 3 side.

[0027] The heat sink 1 is known as a sheet material or structure for cooling in various fields such as mobile objects and buildings, and has a radiation cooling function. In this embodiment, the heat sink 1 is provided on the outer plate of the roof panel R.

[0028] Roof trim T is the interior material of the roof part, also like Figure 2As shown, a cold air flow path 2 is formed in substantially the entire area between the cold source 1, and in this embodiment, an air inlet 3 and an air outlet 4 are integrally provided. The cold air flow path 2 is blocked by both ends in the left-right direction of the vehicle. As a more preferred structure, the air inlet 3 can be arranged at the rear of the vehicle in the center of the front-to-back direction of the vehicle in the roof interior T, and is arranged at the rear end of the vehicle in the roof interior T in this embodiment. In addition, as a more preferred structure, the air outlet 4 can be arranged at the front of the vehicle in the center of the front-to-back direction of the vehicle in the roof interior T, and is arranged at the front end of the vehicle in the roof interior T in this embodiment.

[0029] In addition, if Figure 2 As shown in FIG. 2A , the airflow generating system of the example shown in the figure corresponds to the driver's seat and the front passenger seat of the front seat FS, and air outlets 4 and 4 are arranged at two locations in the left and right directions of the vehicle. Figure 2 As shown in (C), one air inlet 3 is arranged in the left-right direction of the vehicle. In this embodiment, air outlets 4, 4 are arranged toward the upper surface of the instrument panel D and the dashboard. The number and size of the air outlets 4 and the air inlet 3 are not limited and can be changed appropriately.

[0030] The airflow generator 5 is not particularly limited as long as it generates airflow in one direction in the cold air flow path 2, and is typically a fan. The airflow generator 5 of this embodiment is arranged in the center of the cold air flow path 2 in the front-to-back direction of the vehicle. In addition, as a more preferred structure, the airflow generator 5 can be arranged at multiple locations in the left-right direction of the vehicle. In this embodiment, for example, Figure 2 As shown in FIG. 2B , airflow generators 5, 5 are arranged at two locations in the left and right directions of the vehicle. Each airflow generator 5 generates a cold airflow F1 in the cold air flow path 2 in a direction from the air inlet 3 to the air outlet 4, that is, from the rear of the vehicle to the front of the vehicle. The number and arrangement of the airflow generators 5 are not limited.

[0031] In addition, the airflow generation system of this embodiment is provided with an airflow controller 6 for controlling the airflow generator 5. The airflow controller 6 has at least the function of operating and stopping the airflow generator 5, and adjusting the air flow rate, but in this embodiment, it also has the function of adjusting the air flow rate. The air flow rate adjustment can be handled by changing the output of the airflow generator (fan) 5.

[0032] The airflow controller 6 has a human-operated operation unit and can cooperate with the vehicle air conditioner 7. In this embodiment, a temperature detector 8 for detecting the temperature of the vehicle interior 50 is provided, and the airflow generator 5 and the vehicle air conditioner 7 can be controlled based on the temperature detected by the temperature detector 8.

[0033] The airflow generating system with the above structure generates a cold airflow F1 in the cold air flow path 2 from the air inlet 3 to the air outlet 4 by using the airflow generator 5. That is, the airflow generating system uses the cold source 1 having a radiation cooling function to cool the air in the vehicle compartment 50 flowing into the cold air flow path 2 from the air inlet 3, and thus, the cold airflow F1 is generated in the cold air flow path 2 only by driving the airflow generator 5. Moreover, the airflow generating system causes the cold airflow to flow out from the air outlet 4 to the vehicle compartment 50.

[0034] As a result, a cold airflow, i.e., a circulating airflow F2, is generated in the vehicle compartment 50 in the direction from the air outlet 4 side to the air inlet 3 side, i.e., from the front to the rear of the vehicle, thereby lowering the temperature of the vehicle compartment 50. In addition, the air flowing to the rear of the vehicle body in the vehicle compartment 50 is introduced into the cold air flow path 2 from the air inlet 3 and cooled again.

[0035] In this way, the airflow generation system can continuously generate the cold airflow F1 in the cold air flow path 2 and the circulating airflow in the vehicle interior 50 by only driving the airflow generator 5, and can reduce the temperature of the entire vehicle interior 50 with less energy.

[0036] In addition, the airflow generation system described above can be compactly assembled with respect to the existing roof interior R by forming the roof interior R with the air inlet 3 and the air outlet 4. Furthermore, the roof interior R equipped with the airflow generation system described above is unitized, which can contribute to improving the assembly workability of the vehicle V, etc.

[0037] Here, the vehicle V is exposed to direct sunlight while parked ( Figure 1 As shown in the arrow L in the figure, the temperature of the upper surface of the instrument panel D and the instrument panel is the highest, so the temperature of the front area of ​​the vehicle compartment 50 is likely to rise, and sometimes the heat radiation from the upper surface of the instrument panel D and the instrument panel causes discomfort to the occupants.

[0038] Therefore, the above-mentioned airflow generating system suppresses the mixing of warm air and cold air in the cold air flow path 2 by configuring an air inlet 3 at the rear of the vehicle in the center of the vehicle's front-to-back direction in the roof interior R, and configuring an air outlet 4 at the front of the vehicle in the center of the vehicle's front-to-back direction in the roof interior R, thereby improving the heat conversion efficiency.

[0039] Moreover, the above-mentioned airflow generating system, in particular, configures the air flow outlet 4 toward the instrument panel D and the upper surface of the instrument panel, thereby intensively cooling the instrument panel D and the upper surface of the instrument panel as heat radiation parts, thereby quickly reducing the temperature of the vehicle cabin 50.

[0040] Furthermore, the above-mentioned airflow generating system can generate a pressure difference in the cooling flow path 2 by configuring the airflow generator 5 inside the cooling flow path 2, thereby simply generating a cooling airflow F1 with a sufficient flow rate, and can visually hide the equipment to make the interior appearance of the vehicle cabin 50 good.

[0041] Furthermore, the above-mentioned airflow generating system arranges the airflow generators 5 at multiple locations in the left-right direction of the vehicle, thereby increasing the flow rate of the cold airflow F1, thereby increasing the flow rate of the circulator flow F2, and further improving the cooling function of the entire vehicle cabin 50.

[0042] Furthermore, the airflow generation system is provided with an airflow controller 6 for controlling the airflow generator 5, and the airflow generator 6 has the functions of operating and stopping the airflow generator 5, or operating, stopping and adjusting the air flow rate. Thus, the airflow generation system is easy to operate manually and can also be automatically controlled.

[0043] Furthermore, the airflow generation system is provided with a temperature detector 8 for detecting the temperature of the vehicle cabin 50, and the airflow generator 5 is controlled based on the temperature detected by the temperature detector 8, so that automatic control can be performed and the airflow generator 5 can be coordinated with the vehicle air conditioner 7. In addition, in the control device for the vehicle air conditioner provided with the airflow generation system, since the airflow generation system functions as a part of the vehicle air conditioner 7, the energy required for the air conditioner can be reduced accordingly.

[0044] Furthermore, a car equipped with the above-mentioned airflow generation system can lower the temperature of the vehicle cabin with less energy, thereby achieving overall energy saving and efficient energy distribution.

[0045] Figure 3 and Figure 4 The figures are for explaining the second to fourth embodiments of the airflow generation system of the present invention. In the following embodiments, the same components as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0046] <Second Embodiment>

[0047] like Figure 3 As shown, the airflow generation system includes an airflow direction adjustment mechanism 60 for changing the flow direction of air flowing out to the vehicle interior 50. The airflow direction adjustment mechanism 60 includes Figure 3 As shown in (A) and (B), it is mounted on the air outlet ( Figure 1 The rectangular fixing frame 61 of the reference numeral 4) and Figure 3 (C) A rectangular movable frame 62 is mounted inside the fixed frame 61.

[0048] The fixed frame 61 and the movable frame 62 are combined by forming a spherical pair or a curved pair with their contact surfaces. The movable frame 62 has a plurality of louvers 63 arranged inside thereof and supported by a vertical axis so as to be rotatable. A common connecting rod 65 having a left and right operating portion 64 is connected to each louver 63. In addition, the movable frame 62 has an upper and lower operating portion 66 which penetrates the fixed frame 61 upward from below at its lower portion.

[0049] The wind direction adjustment mechanism 60 moves the left and right operating parts 64 to the left and right directions of the vehicle. Figure 3 As shown by the dotted lines in (A), the direction of the cold air flow out of the air outlet can be changed in the left-right direction by rotating the shutters 63 together. In addition, the wind direction adjustment mechanism 60 can rotate the movable frame 62 in the up-down direction relative to the fixed frame 61 by moving the up-down operating part 66 in the front-rear direction of the vehicle, so that the direction of the cold air flow out of the air outlet can be changed in the up-down direction.

[0050] The airflow generating system with such wind direction adjustment mechanism 60 can not only obtain the same function and effect as the first embodiment, but also can select the wind direction according to the preference of the occupant, which can further improve the convenience. In addition, the structure of the wind direction adjustment mechanism 60 is not limited to the above embodiment, and can be a structure that uses a motor to drive the movable part, or can also add a throttling device for adjusting the air volume.

[0051] <Third and Fourth Embodiments>

[0052] Figure 4 In the illustrated airflow generation system, an airflow generator 5 is disposed outside the cold air flow path 2 and facing at least one of the air inlet 3 and the air outlet 4 . Figure 4 In the airflow generation system shown in (A), an airflow generator 5 is arranged outside the cold air flow path 2 and outside the air outlet 4 .

[0053] The above-mentioned airflow generating system operates the airflow generator 5 arranged outside the air outlet 4 to suck the cold air flow path 2, introduces the air in the vehicle compartment 50 into the cold air flow path 2 from the air inlet 3, and uses the cold source 1 to cool the introduced air.

[0054] on the other hand, Figure 4 The structure of the airflow generating system shown in (B) is a structure in which an airflow generator 5 is arranged outside the cold air flow path 2 and outside the air inlet 3. The airflow generating system operates the airflow generator 5 arranged outside the air inlet 3 to pressurize the cold air flow path 2, send the air in the vehicle compartment 50 from the air inlet 3 into the cold air flow path 2, and use the cold source 1 to cool the sent air.

[0055] The above-mentioned airflow generating systems can not only obtain the same functions and effects as the first embodiment, but also generate a pressure difference in the cold air flow path 2 to generate a cold air flow, and can reduce the height dimension of the cold air flow path, etc., to ensure the volume of the vehicle compartment 50.

[0056] In addition, the airflow generating system can configure the airflow generator 5 relative to both the air inlet 3 and the air outlet 4, and can also configure the airflow generator 5 relative to both the inside and outside of the cold air flow path 2, and the position and configuration location of the airflow generator 5 can be freely selected.

[0057] 〈Implementation of the test〉

[0058] The airflow generation system of the present invention was tested to generate airflow under the following conditions 1 to 7 and measure the temperature of each part. The temperature was measured at the heater part of the instrument panel, the windshield part, the roof part, and the head part of the driver's seat.

[0059] Condition 1: An airflow is generated in the cold air flow path 2 from the rear to the front of the vehicle.

[0060] Condition 2: An airflow is generated in the cold air flow path 2 from the front to the rear of the vehicle.

[0061] Condition 3: A partition plate directed toward the cold air flow is arranged in the cold air flow path 2 to generate an air flow from the rear to the front of the vehicle.

[0062] Condition 4: A partition plate is arranged in the cold air flow path 2 to generate an air flow from the front to the rear of the vehicle.

[0063] Condition 5: Enable the defroster.

[0064] Condition 6: A partition plate is arranged in the cold air flow path 2 to make the suction temperature constant and to generate an air flow from the rear to the front of the vehicle.

[0065] Condition 7: A partition plate is arranged in the cold air flow path 2 to change the suction temperature and generate an air flow from the front to the rear of the vehicle.

[0066] Figure 5 The results are obtained by testing under conditions 1 and 2. Figure 1 In the same configuration as the airflow generation system shown, after the heater and the cooler were operated for 90 minutes, the airflow generator 5 was operated and the temperature change with the passage of time was measured.

[0067] As from Figure 5 As can be seen from (A) and (B), the temperature change in the heater and windshield is greater when the cold air flow F1 is generated from the rear to the front of the vehicle (condition 1) than when the cold air flow F1 is generated from the front to the rear of the vehicle (condition 2). Figure 5 (C) It can be seen that, in the roof part, due to the effect of the cold source 1, the temperature change becomes larger regardless of the direction of the cold air flow F1.

[0068] It can be seen from this that if Figure 1 As shown, the airflow generating system generates a cold airflow F1 from the rear to the front of the vehicle in the cold air flow path 2 and generates a circulating airflow F2 from the front to the rear of the vehicle in the vehicle cabin 50, thereby generating heat exchange between the cold air and the heater, thereby suppressing the temperature of the vehicle cabin 50.

[0069] Figure 6 The results are obtained by testing under conditions 3 and 7. Figure 5 The test shown is the same, but the suction temperature to the cold air flow path 2 is unified.

[0070] As from Figure 6 As can be seen from (A) and (B), the temperature change in the heater and windshield is greater when the cold air flow F1 is generated from the rear to the front of the vehicle (condition 3) than when the cold air flow F1 is generated from the front to the rear of the vehicle (condition 7). Figure 6 (C) It can be seen that, in the roof part, due to the effect of the cold source 1, the temperature change becomes larger regardless of the direction of the cold air flow F1.

[0071] It can be seen from this that the airflow generating system generates a cold airflow F1 from the rear to the front of the vehicle in the cold air flow path 2, and generates a circulating airflow F2 from the front to the rear of the vehicle in the vehicle interior 50. As a result, the temperature of the vehicle interior 50 can be suppressed without being controlled by the suction temperature into the cold air flow path 2.

[0072] Figure 7 This is the result obtained by testing under conditions 1 and 3. Figure 7 It can be seen that, at the head portion of the driver's seat, the temperature and the amount of temperature change do not change under any conditions, and the ease of cooling the vehicle interior 50 does not change regardless of the presence or absence of a partition.

[0073] Figure 8 This is the result obtained by testing under conditions 3 and 5. Figure 8 (A) and (B) show that at the head portion of the driver's seat, since the defroster is working, air cannot smoothly flow into the narrow cold air flow path 2, making it difficult to generate heat exchange. However, at the roof portion, the temperature change becomes larger through the cold source 1.

[0074] Fig. 9 This is the result obtained by testing under conditions 4 and 7. Fig. 9(A) to (C) show that when the air flowing into the cooling flow path 2 is heated or cooled, the cooling speed is increased when cooled, but the final temperature is about the same in both the heated and cooled conditions.

[0075] As described above, in the airflow generating device of the present invention, the temperature of the vehicle interior 50 can be suppressed when the cold airflow F1 is generated in the cold air flow path 2 in the direction from the front to the rear of the vehicle, compared with the case where the defroster is operated. Figure 1 As shown, the airflow generating device can most efficiently suppress the temperature of the vehicle interior 50 by generating the cold airflow F1 in the cold air flow path 2 in the direction from the rear to the front of the vehicle.

[0076] The configuration of the airflow generation system of the present invention is not limited to the above-described embodiments, and can be appropriately modified according to the structure of the interior of the vehicle, etc., without departing from the spirit of the present invention.

[0077] Explanation of symbols

[0078] 1 Cold source

[0079] 2 Cold air flow path

[0080] 3 Air inlet

[0081] 4 Air outflow

[0082] 5 Airflow generator

[0083] 6 Air flow controller

[0084] 7 Car air conditioner

[0085] 8 Temperature detector

[0086] 50 Carriages

[0087] 60 Wind direction adjustment mechanism

[0088] D Instrument panel

[0089] F1 Cold Air

[0090] F2 Circulation Airflow

[0091] R Roof Panel

[0092] T Roof Interior

[0093] V Vehicle (Car)

Claims

1. An airflow generating system, characterized in that: have: A cold source, which is disposed on a roof panel of the vehicle and has a radiation cooling function of maintaining a temperature lower than that of the vehicle compartment; A roof interior, which is arranged on the inner side of the roof panel; a cold air flow path formed between the cold source and the roof interior; an air inlet for allowing the air in the vehicle compartment to flow into the cold air flow path; an air outlet for allowing the air in the cold air flow path to flow out to the vehicle compartment; an airflow generator, which generates a cold airflow in the cold air flow path in a direction from the air inlet to the air outlet, A circulating airflow in a direction from the air outlet side to the air inlet side is generated in the vehicle cabin.

2. The airflow generating system according to claim 1, characterized in that: The roof trim has the air inlet and the air outlet.

3. The airflow generating system according to claim 1 or 2, characterized in that: The air inlet is arranged at the rear of the vehicle at the center of the roof interior in the front-rear direction of the vehicle. The air outlet is disposed at the front of the vehicle at the center of the roof interior in the front-rear direction of the vehicle.

4. The airflow generating system according to claim 3, characterized in that: The air outlet is arranged toward the upper surface of the instrument panel and the instrument panel.

5. The airflow generating system according to claim 1, characterized in that: The airflow generator is disposed inside the cold air flow path.

6. The airflow generating system according to claim 1, characterized in that: The airflow generator is arranged outside the cold air flow path so as to face at least one of the air inlet and the air outlet.

7. The airflow generating system according to claim 1, characterized in that: The airflow generators are arranged at a plurality of locations in the left-right direction of the vehicle.

8. The airflow generating system according to claim 1, characterized in that: An airflow controller is provided, the airflow controller controls the airflow generator, The airflow generator has a function of at least operating and stopping the airflow generator, among operating and stopping the airflow generator and adjusting the flow rate of air.

9. The airflow generating system according to claim 8, characterized in that: A temperature detector is provided, the temperature detector detecting the temperature of the vehicle compartment, The airflow controller controls the airflow generator based on the detected temperature of the temperature detector.

10. The airflow generating system according to claim 1, wherein: An air direction adjustment mechanism is provided, which changes the flow direction of air flowing out to the vehicle compartment.

11. A roof interior for an automobile, characterized in that: A system for generating airflow according to claim 1 is provided.

12. A control device for an automobile air conditioner, characterized in that: A system for generating airflow according to claim 1 is provided.

13. A car, characterized in that: A system for generating airflow according to claim 1 is provided.

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