JPH04117331U - Automotive air curtain device - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the air-conditioning environment in the vehicle interior without deteriorating it, and also to improve the blocking function of the air curtain. [Structure] A ceiling side duct 11 and a floor side duct 13 extend oppositely to each other on the ceiling 5 and floor 6 of the vehicle interior 1 and communicate with an air conditioner 26 that air-conditions the interior of the vehicle interior 1. is arranged,
Elongated upper and lower openings 12 and 14 are formed in both the ducts 11 and 13 to face each other. During cooling, cold air supplied from the air conditioner 26 is blown out from the opening 12 of the ceiling duct 11 and sucked through the opening 14 of the floor duct 13, and during heating, the air conditioner Warm air supplied from 26 is blown out through the opening 14 of the floor-side duct 13 and sucked through the opening 12 of the ceiling-side duct 11.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

TECHNICAL FIELD The present invention relates to an air curtain device for an automobile installed in the cabin of an automobile.

0002

[Conventional technology]

As a conventional air curtain device for automobiles, the one shown in Figure 4 has been proposed. (See Utility Model Application Publication No. 1-165718). In other words, in the passenger compartment 1, there is a space on the front seat side. 2 and a rear seat side space 3 are provided, and at the boundary between these two spaces 2 and 3, there is a A discharge side duct 4 is arranged on the ceiling 5, and a suction side duct 7 is arranged on the floor 6. . The discharge side duct 4 is provided with a discharge port 8, while the suction side duct 4 is provided with a discharge port 8. 7 is provided with a suction port 9 that faces the discharge port 8 .

0003 In such a structure, air is blown out from the discharge port 8 and the air is This blown air is sucked from the inlet 9, and thereby the front seat side space 2 and the rear seat An air curtain A is formed between the side space 3 and the side space 3. Therefore, by the air curtain A Both seat side spaces 2 and 3 are blocked, and as a result, for example, an occupant P seated in the front seat side space 2 This can prevent smoke from smoking from flowing into the rear seat side space 3.

0004

[Problem that the idea aims to solve]

However, in such a conventional air curtain device, cooling inside the vehicle compartment 1 is limited. It has a structure in which air at a temperature unrelated to the heating state is discharged from the discharge port 8. Ru. Therefore, for example, when the inside of the vehicle compartment 1 is being cooled, the discharge port 8 is Air that is hotter than the cold air supplied from the air conditioner is discharged, and the hot air When the air curtain A is formed, the inside of the vehicle compartment 1 is heated by the heat from the air curtain A. The temperature of the air conditioner will rise, and the cooling effect will be reduced.

[0005] Further, for example, when the inside of the vehicle compartment 1 is being heated, the air conditioner can be connected to the air conditioner from the outlet 8. Air that is cooler than the hot air that is supplied from the equipment is discharged, and the air is When the curtain A is formed, the temperature inside the vehicle compartment 1 decreases due to the air curtain A. This will reduce the heating effect. Therefore, if the air conditioner is not being heated or air-conditioned, In this case, the air curtain A is formed without affecting the heating and cooling environment inside the vehicle compartment 1. Even if it is possible to This has the disadvantage of deteriorating the heating and cooling environment.

[0006] Additionally, if air with a temperature higher than the air temperature in the vehicle compartment 1 is discharged from above, the high temperature Air has a tendency to rise because it has a smaller mass than low-temperature air. Therefore, the air having a higher temperature than the air temperature inside the vehicle is discharged from the discharge port 8 provided on the ceiling 5 side. When the high temperature air is discharged from the It acts in the direction. For this reason, an air curtain is formed from the discharge port 8 toward the suction port 9. The flow of air forming A is obstructed by the tendency of the high temperature air to rise. As a result, the blocking function of the air curtain deteriorates.

[0007] The present invention was developed in view of these conventional problems, and it In addition to improving the room environment rather than deteriorating it, it is also possible to The purpose of the present invention is to provide an air curtain device for automobiles that also has an improved function of shutting off air. It is something.

[0008]

[Means to solve the problem]

In order to solve the above-mentioned problem, the present invention has a structure in which the ceiling and floor of the vehicle interior are A ceiling-side duct and a floor-side duct that extend toward each other and communicate with an air conditioner that air-conditions the vehicle interior. ducts, and long openings facing each other are formed in both ducts. At the same time, the cold air supplied from the air conditioner is passed through the opening of the ceiling side duct. A cooling air blowing mode in which the air is blown out from the air conditioner and sucked through the opening of the floor side duct; The warm air supplied from the air conditioner is blown out from the opening of the floor side duct and The system selectively creates airflow during heating that sucks air from the opening of the ceiling-side duct. It is composed of

[0009]

[Effect]

In the above configuration, when cold air is supplied from the air conditioner that air-conditions the vehicle interior, When cooling the inside of the vehicle, cool air is blown out from the opening of the ceiling duct, A cooling mode is formed in which air is sucked from the opening of the floor side duct, and as a result, A cooling air curtain is formed by air flowing from the ceiling toward the floor. Since the cooling air curtain is formed by cold air, this cooling The interior of the vehicle is also cooled by the air curtain. Also, cold air, or low-temperature air, Since the mass has a tendency to descend significantly, it is recommended to blow cold air from the ceiling. By letting the cold air come out and suctioning it on the floor side, the tendency of the cold air to descend is reduced. , acting in the forward direction along the air flow forming an air curtain.

0010 In addition, if warm air is supplied from an air conditioner that air-conditions the interior of the vehicle, During heating, warm air is blown out from the opening of the floor-side duct and the ceiling-side duct is heated. This creates a type of heating air that is sucked in from the opening of the An air curtain is formed during heating, consisting of air flowing toward the well side. During heating Since the AC curtain is formed by warm air, the air flow during heating is The cabin is also heated by the heating system. Also, warm air, or high-temperature air, has a small mass. Since it has the property of rising rapidly, warm air can be blown out from the floor side and By suctioning on the well side, the tendency of the hot air to rise is controlled by the air curtain. act in the forward direction along the air flow forming the tunnel.

[0011]

【Example】

An embodiment of the present invention will be described below with reference to the drawings. That is, Figure 1 The vehicle body 10 shown in FIG. A seat side space 2 and a rear seat side space 3 are provided. At the boundary between these two spaces 2 and 3, A ceiling duct 11 is arranged along the ceiling 5 of the vehicle compartment 1 and extends in the vehicle width direction. , the lower surface of the ceiling-side duct 11 has an elongated upper opening 12 along its longitudinal direction. is formed.

0012 On the other hand, on the floor 6 of the vehicle compartment 1, there is a An extending floor side duct 13 is disposed, and on the upper surface of the floor side duct 13, A lower opening 14 facing the upper opening 12 is formed. The ceiling side da One end of the duct 11 and the floor duct 13 are closed, and the other end is closed. A side duct 15 extending downward is in communication. The middle part of the side duct 15 As shown in FIGS. 2 and 3, a blower fan 25 constituting a variable air blowing mode is installed. The blower fan 25 is driven by a motor (not shown). It operates and is configured to be capable of forward and reverse rotation.

[0013] The side duct 15 has an upper part and a lower part than the part where the blower fan 25 is disposed. An upper branch duct 16 and a lower branch duct 17 are connected to each other, and both branch ducts are connected to each other. The ducts 16 and 17 are communicated with an air conditioner 26 via a bypass duct 20. There is. The air conditioner 26 includes a blower unit, a cooling unit, and a heater unit are arranged in series, and is arranged in the front part of the vehicle interior 1. It is arranged in the instrument panel 21.

[0014] Additionally, a cooling switch and a heating switch (not shown) are connected to the air conditioner 26. When the air conditioner switch is turned on, the air conditioner operates and generates cold air. Also, when the heating switch is turned on, the heating is activated and generates warm air. It looks like this. The generated cold air and hot air are then transferred to the bypass duct. It is not only fed into the instrument panel 20 but also provided in the instrument panel 21. The air is also fed into the vehicle compartment 1 through an air outlet (not shown).

[0015] Furthermore, as shown in FIGS. 2 and 3, the side duct 15 includes both branch ducts. Upper release ducts 18 communicating with the interior of the vehicle compartment 1 are located closer to the upper and lower ends of the ports 16 and 17, respectively. and a lower release duct 19 projecting obliquely. Both release ducts 18, 19 protrudes into the side duct 15 and is bent toward the end of the side duct 15. An upper air guide 22 and a lower air guide 23 are extended.

[0016] Further, in the communication portion between the bypass duct 20 and both the branch ducts 16 and 17, A heating and cooling switching door 24 that selectively opens and closes both branch ducts 16 and 17 is pivotally supported. It is. The heating/cooling switching door 24 is included in this embodiment together with the blower fan 25. The cooling switch constitutes an air blowing mode variable means in the air conditioner, and the cooling switch is turned on. If the upper branch duct 16 is released and the lower branch is opened, as shown in FIG. It is driven to close the duct 17. Also, at this time, the blower fan 25 is The circuit rotates so that it sucks in from below the side duct 15 and discharges it upward. It is configured. Furthermore, the heating/cooling switching door 24 is configured so that the heating switch is turned on. When operated, the upper branch duct 16 is closed and the lower branch duct 16 is opened, as shown in FIG. It is driven to release the branch duct 17, and at this time the blower fan 25 rotates in the opposite direction. The circuit is configured to suck air from above the side duct 15 and discharge it downward. It is.

[0017] In this embodiment having the above configuration, when the cooling switch is turned on, The air conditioner 26 operates to cool and generate cold air, and the instrument panel 21 Cold air is blown into the passenger compartment 1 from the air outlet provided in the portion is fed into the bypass duct 20. Also, turn on the cooling switch. Accordingly, as shown in FIG. 2, the heating/cooling switching door 24 opens the upper branch duct 16. When released, the lower branch duct 17 is closed, and the blower fan 25 rotates in the forward direction. . As a result, the cold air flows from the upper branch duct 16 to the upper side of the side duct 15. After that, it flows into the ceiling side duct 11 under the wind pressure from the blower fan 25, and the upper part The air is blown out from the opening 12 toward the lower opening 14 of the floor-side duct 13.

[0018] On the other hand, in the lower opening 14, as the blower fan 25 rotates forward, A suction force acts to suck the cold air blown out from the upper opening 12. to this Therefore, during cooling, air from the ceiling 5 of the passenger compartment 1 is placed between the upper opening 12 and the lower opening 14. A cooling airflow form consisting of air flowing toward the floor 6 side is formed, and the cooling An air curtain CA is formed in the vehicle width direction.

[0019] Further, the cold air sucked into the floor side duct 13 from the lower opening 14 is As the afan 25 rotates, it is circulated and supplied into the ceiling duct 11 again, while A part of the air is guided by the lower air guide 23 and is passed through the lower release duct 19 into the passenger compartment. It is fed within 1. Therefore, the upper opening 12 formed in the ceiling side duct 11 The cold air blown from the air conditioner 26 is always routed through the bypass duct 20 The low-temperature cold air supplied from the cooling air curtain CA increases in temperature. Maintains low temperature without overheating.

[0020] Therefore, during cooling, which consists of cold air that is maintained at a low temperature without increasing the temperature. The air curtain CA cools the passenger compartment 1 and separates the front seat side space 2 and the rear seat side space 3. It is possible to improve the cooling environment in the passenger compartment 1 while blocking the air curtain CA during cooling. Wear.

[0021] In addition, cold wind, or low-temperature air, has the property of having a large mass that tends to descend. , the cold air is blown out from the upper opening 12 on the ceiling 5 side, and the cold air is blown out from the lower opening 12 on the floor 6 side. By suctioning in the section 14, the tendency of the cold air to descend is reduced to It acts in the forward direction along the air flow forming the curtain CA. therefore, Air flows from the ceiling 5 side toward the floor 6 side to form an air curtain CA during cooling. , promoted by the tendency of the cold air to descend, thereby causing the air car to It becomes possible to improve the blocking function as a tensile system.

[0022] Further, when the heating switch is turned on, the air conditioner 26 starts heating operation and blows warm air. is generated, and hot air is discharged from the outlet provided in the instrument panel 21. is blown out into the vehicle compartment 1, and a portion of the warm air is also blown into the bypass duct 20. will be sent to. Further, as shown in FIG. 3, as the heating switch is turned on, The heating/cooling switching door 24 closes the upper branch duct 16 and opens the lower branch duct 17. At the same time, the blower fan 25 rotates in the opposite direction. This allows the hot air to flow into the lower branch. After flowing into the lower side of the side duct 15 from the duct 17, the air from the blower fan 25 It flows into the floor side duct 13 under pressure, and flows toward the lower opening 14 or the upper opening 12. Once it's blown out.

[0023] On the other hand, in the upper opening 12, as the blower fan 25 rotates in the opposite direction, A suction force acts to suck the warm air blown out from the lower opening 14. to this Therefore, during heating, there is space between the lower opening 14 and the upper opening 12 from the floor 6 to the ceiling 5 side. At the same time, the air flow during heating is formed by the flow of air toward A curtain HA is formed in the vehicle width direction.

[0024] Further, the hot air sucked into the ceiling side duct 11 from the upper opening 12 is As the afan 25 rotates in the opposite direction, it is once again circulated and supplied into the floor side duct 13. , a part of which is guided by the upper air guide 22 and released from the upper release duct 18 to the vehicle. It is fed into chamber 1. Therefore, the lower opening 1 formed in the floor side duct 13 The warm air blown from the air conditioner 26 is always connected to the air conditioner 26 via the bypass duct 20. The temperature of the heating air curtain HA decreases due to the mixing of high-temperature warm air supplied from the Maintain high temperature without overheating.

[0025] Therefore, during heating, which consists of warm air that is maintained at a high temperature without decreasing the temperature. The air curtain HA heats the passenger compartment 1 and heats the front seat side space 2 and the rear seat side space 3. It is possible to improve the heating environment in the passenger compartment 1 while blocking air curtain HA during heating. Wear.

[0026] In addition, warm air, or high-temperature air, has a small mass and tends to rise. The hot air is blown out from the lower opening 14 on the floor 6 side, and the hot air is blown out from the upper opening 14 on the ceiling 5 side. By suctioning in the section 12, the tendency of the hot air to rise is reduced during heating. It acts in the forward direction along the air flow forming the curtain HA. therefore, Air flows from the floor 6 side toward the ceiling 5 side to form an air curtain HA during heating. , promoted by the tendency of the hot air to rise, which causes the air car to This makes it possible to improve the blocking function of the tensile system.

[0027] Note that in the above embodiment, the air conditioner 26 is operated for cooling or heating. The blower fan 25 is started by turning on the cooling switch and the heating switch. First, the air conditioning/heating switching door 24 is activated, but the air curtain is separately operated during cooling. and a switch for the air curtain during heating. The cooling air curtain CA and the heating air curtain HA can be shaped as necessary. It is also possible to do so. Furthermore, as the air conditioner 26, a blower unit is used. However, using an air conditioner without a blower unit, The cold air and hot air may be blown out and sucked only by the air blower 25.

[0028]

[Effect of the idea]

As explained above, the present invention allows cold air to flow from the opening of the ceiling duct during cooling. This creates a cooling airflow mode in which air is blown out and sucked in from the opening of the floor duct. When the room is in use, hot air is blown out from the opening in the floor duct and then heated through the opening in the ceiling duct. The system creates a type of air flow during heating that sucks air from the air. Therefore, the air blowing mode during cooling The interior of the vehicle can be cooled by the air curtain formed by the In addition to increasing the effectiveness, it also reduces the air curtain formed by the air blowing mode during heating. The interior of the vehicle can be heated by heating the interior of the vehicle, increasing the heating effect inside the vehicle. . Therefore, the air conditioning environment inside the vehicle is improved rather than degraded. The curtain allows the interior of the vehicle to be divided into multiple spaces.

[0029] In addition, cold air whose mass tends to descend greatly is blown from the ceiling side. The hot air that has a small mass and tends to rise is By blowing out from the floor and suctioning from the ceiling, the cold air is lowered. The tendency of the air to rise and the tendency of the hot air to rise are It can be applied in the forward direction along the flow. Therefore, the air curtain The air flow formed can be promoted by the properties of cold air and warm air, and this This makes it possible to improve the blocking function of the air curtain.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a conceptual diagram showing the flow of air during cooling in the same embodiment.

FIG. 3 is a conceptual diagram showing the flow of air during heating in the same embodiment.

FIG. 4 is a sectional view showing a conventional air curtain device for an automobile.

[Explanation of symbols]

1 Cabin 5 Ceiling 6 Floor part 11 Ceiling side duct 12 Upper opening 13 Floor side duct 14 Lower opening 24 Air conditioning/heating switching door (air blowing mode variable means) 25 Blower fan (air blowing mode variable means) 26 Air conditioner

Claims (1)

[Scope of utility model registration request] Claim 1: A ceiling-side duct and a floor-side duct are disposed on a ceiling and a floor of a vehicle interior, and the ceiling-side duct and the floor-side duct extend oppositely to each other and communicate with an air conditioner that air-conditions the vehicle interior. Long openings facing each other are formed in the duct, and
A cooling air blowing mode in which the cold air supplied from the air conditioner is blown out from the opening of the ceiling side duct and sucked through the opening of the floor side duct, and the hot air supplied from the air conditioner is , an air blowing mode variable means for selectively forming a heating mode in which air is blown out from the opening of the floor-side duct and sucked through the opening of the ceiling-side duct is provided. curtain device.