JPH08175157A - Air conditioner for bus - Google Patents

Abstract

PURPOSE: To enhance amenity for passengers seated on each seat by cooling each seat at the time of a cooling operation, and also warming up each seat at the time of a heating operation. CONSTITUTION: A cooling and heating duct 26 is laid out along a great number of seats lined up at intervals in the longitudinal direction in a cabin, an air duct 14 communicated with an upper diffuser 18 is formed in the seat back 13 of each seat 10, and also an air duct 12 communicated with a lower diffuser 15 is formed in each seat cusion 11. At the time of a cooling operation, cold air having passed through the cooling and heating duct 26 is led to each air duct 14 by way of each connection duct 17 and each switching damper 16, each seat back 13 is then cooled, and the cold air is blown out of each upper diffuser 18 into the cabin 2 thereafter. At the time of a heating operation, warm air having passed through the cooling and heating duct 26 is led to each air duct 12 with each switching damper 16 switched, each seat cushion 11 is then warmed up, and the warm air is blown out of each lower diffuser 15 into the cabin 2 thereafter.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bus air conditioner.

[0002]

2. Description of the Related Art An example of a conventional air conditioning system for buses is shown in FIG. As shown in FIG. 4, an air conditioner unit 1 having an inside air intake port 20 and an outside air intake port 21 is mounted on the lower part of the bus 100. Cooling ducts 4 extend in the front-rear direction on both sides near the ceiling in the passenger compartment 2, and heating ducts 6 extend in the front-rear direction on both sides near the inner floor of the passenger compartment 2.

During the cooling operation, the cold air generated by the air conditioner unit 1 branches via the underfloor duct 22 and enters the cooling duct 4 through the pair of rising ducts 3 and a switching damper (not shown) interposed therebetween. The air is blown into the vehicle interior 2 from the air outlets 5 formed in the cooling duct 4 at a predetermined interval.

During the heating operation, the warm air generated in the air conditioner unit 1 enters the heating duct 6 through the underfloor duct 22, the rising duct 3 and the switching damper, and the heating duct 6 is heated.
The air is blown into the vehicle interior 2 from the air outlets 8 formed at predetermined intervals.

[0005]

In the above-mentioned conventional bus air conditioner, it takes time before the air temperature in the passenger compartment 2 reaches the set temperature at the start of operation, and the passenger seat is cooled. I couldn't warm it up.

[0006]

SUMMARY OF THE INVENTION The present invention has been invented to solve the above-mentioned problems, and the gist of the first invention is to provide a large number in the vehicle interior at intervals in the front-rear direction. Air-conditioning ducts are installed along the arranged seats, and an air passage communicating with an upper outlet that blows conditioned air upward and a lower outlet that blows conditioned air downward is formed in each seat, and this air passage is connected via a connecting duct. And a switching damper for switching the conditioned air to the upper outlet or the lower outlet in the air passage while being connected to the cooling and heating duct.

The gist of the second invention is that a cooling duct and a heating duct are installed along a number of seats arranged in the vehicle interior at intervals in the front-rear direction, and cool air is provided in each seat. An air conditioner for a bus, characterized in that an air passage and a hot air passage are formed, and a connection pipe is provided to connect the cold air passage and the warm air passage to the cooling duct and / or the heating duct. It is in.

[0008]

In the first aspect of the invention, the conditioned air passes through the cooling and heating ducts and the connecting ducts into the air passages formed in a large number of seats, and the upper blower outlet or the lower blower outlet selected by switching the switching damper. The air is blown from the inside of the vehicle to cool or warm the seat, and at the same time, the vehicle can be cooled or heated.

According to the second aspect of the present invention, during the cooling operation, when the cooling duct and the cold air passage formed in the seat are connected by the connecting pipe, the cool air is blown into the vehicle compartment through the cold air passage.

When the heating duct and the hot air passage formed in the seat are connected by the connecting pipe during the heating operation, the hot air is blown into the vehicle compartment through the hot air passage. When the connection pipe is removed, cool air is blown out from the cooling duct and warm air is blown out from the heating duct into the passenger compartment.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A first embodiment of the invention is shown in FIGS. As shown in FIG. 2, cooling and heating ducts 26 extending in the front-rear direction are arranged on both sides under the floor of the passenger compartment 2, and the cold air generated by the air conditioner unit 1 during the cooling operation is generated by the air conditioner unit 1 during the heating operation. Warm air flows through the underfloor duct 22.

As shown in FIG. 1, in a seat cushion 11 of a large number of seats 10 arranged in the vehicle interior 2 at intervals in the front-rear direction, pipes 12 made of a heat conductive material are embedded in a meandering manner. A pipe 14 made of a heat conductive material is also embedded in the seat back 13 so as to meander.

The tip of the pipe 12 is a seat cushion 11
Communicates with a lower air outlet 15 that is open to the front on the front side of the, and the base end communicates with a switching damper 16. Meanwhile, the pipe
The front end of 14 communicates with an upper air outlet 18 that opens rearward in the upper rear portion of the seat back 13, and the base end communicates with a switching damper 16.

The switching damper 16 communicates with the cooling / heating duct 26 via the connection duct 17. In FIG. 1,
Reference numeral 19 is a headrest of the seat 10, 23 is a leg, 24 is a floor, and 25 is a handle for operating the switching damper 16.

During the cooling operation, however, the cool air that has passed through the cooling and heating duct 26 passes through the connecting duct 17, the switching damper 16 and the pipe 14 and is blown into the vehicle interior 2 from the upper outlet 18 so that the interior of the vehicle interior 2 is exhausted. The seat back 13 is cooled in the process of passing through the pipe 14.

Thus, the passengers seated in the seat 10 have their backs in contact with the cold seat back 13, so that their comfort is improved. Further, since the cold air blown out from the upper outlet 18 is blown toward the face of the passenger seated in the rear seat 10,
The comfort of passengers seated in the rear seats 10 is also improved.

Since the seat 10 is cooled immediately after the start of the cooling operation and the cool air is blown toward the passengers in the rear seat 10, the temperature in the passenger compartment 2 has not yet dropped to the set temperature. However, it can improve passenger comfort.

On the other hand, during the heating operation, the warm air that has passed through the cooling / heating duct 26 passes through the connection duct 17 and the switching damper 16 and is piped.
The air is blown into the vehicle interior 2 from the lower outlet 15 through 12 to heat the vehicle interior 2.

Therefore, since the seat cushion 11 is warmed by the warm air passing through the pipe 12, the passenger seated in the seat 10 is warmed by coming into contact with the seat cushion 11, and at the same time, the warm air blown out from the lower outlet 15 causes the passenger to walk. Is warmed, so its comfort is improved.

It should be noted that the operating handle can be selected according to the passenger's preference.
By operating 25 to switch the switching damper 16, the seat cushion 11 can be cooled during the cooling operation, or the seat back 13 can be warmed during the heating operation. In addition, the switching damper
Seat cushion by selecting 16 openings appropriately
The 11 and the seat back 13 can be cooled or warmed at the same time, and their temperatures can be adjusted arbitrarily.

A second embodiment of the invention is shown in FIG. In the second embodiment, like the conventional one shown in FIG. 4, the cooling duct 4 is extended in the front-rear direction near the ceiling in the passenger compartment 2, and the heating duct 6 is disposed in the front-rear direction near the floor. Has been extended to.

Pipes 32 made of a heat conductive material are embedded in a meandering shape in a seat cushion 31 of a large number of seats 30 arranged in the vehicle interior 2 at intervals in the front-rear direction. It communicates with a lower air outlet 33 opening in the center of the front surface, and its base end communicates with a connection port 37 provided at the rear portion of the side surface of the seat cushion 31 on the window side. The connection port 37 is connected to the hot air outlet 8 of the heating duct 6 through a flexible and flexible connection pipe 38.

A pipe 35 made of a heat conductive material is embedded in a meandering shape in the seat back 34 of the seat 30, and the tip end thereof is connected to an upper air outlet 36 opening at the upper part of the side surface of the seat back 34 on the aisle side. The base end communicates with a connection port 39 provided on the upper part of the side surface on the window side. The connection port 39 is connected to the cool air outlet 5 of the cooling duct 4 via a flexible and flexible connection pipe 40. In addition, 24 is a floor, 41 is a headrest of the seat 30, and 42 is a leg.

During the cooling operation, one end of the connection pipe 40 is connected to the connection port 39, and the other end is connected to the cold air outlet 5. Then, the cold air coming through the cooling duct 4 enters the pipe 35 through the cold air outlet 5, the connecting pipe 40, and the connecting port 39, and cools the seat back 34 in the process of passing through the pipe 35. After that, it is blown into the vehicle interior 2 from the upper outlet 36 to cool the interior of the vehicle interior 2. When the connecting pipe 40 is removed, the cold air is blown into the vehicle interior 2 from the cold air outlet 5.

On the other hand, at the time of heating operation, one end of the connection pipe 38 is connected to the connection port 37 and the other end is connected to the hot air outlet 8. Then, the warm air coming through the heating duct 6 is heated by the warm air outlet 8,
After the seat cushion 31 is cooled while flowing into the pipe 32 through the connection pipe 38 and the connection port 37, the seat cushion 31 is blown into the vehicle interior 2 from the lower air outlet 33 and the vehicle interior 2 The inside is heated. When the connection pipe 38 is removed, warm air is blown into the vehicle interior 2 from the warm air outlet 8.

Thus, also in the second embodiment, the seat back 34 can be cooled during the cooling operation and the seat cushion 31 can be warmed during the heating operation.
The comfort of passengers seated in can be improved. Then, by removing the connection pipes 38, 40, the interior of the vehicle compartment 2 can be cooled or heated as in the conventional case.

Further, if one end of the connection pipe 38 is connected to the connection port 39 according to the occupant's preference, the seat back 34 can be warmed, and if one end of the connection pipe 40 is connected to the connection port 37, The seat cushion 31 can be cooled.

In each of the above-described embodiments, the pipe is embedded in the seat cushion and the seat back of the seat, but the air passage can be formed in any shape and structure instead of the pipe.

[0029]

According to the first aspect of the present invention, during cooling operation, the passenger compartment can be cooled at the same time as cooling the passenger compartment.
Moreover, since the passenger compartment can be heated at the same time as heating the passenger compartment during the heating operation, the comfort of the passenger seated in the seat can be improved.

Further, since the seat can be cooled or warmed promptly after the start of driving, it is possible to reduce the discomfort of passengers at the start of driving until the air temperature in the passenger compartment reaches the set temperature.

In the second invention, if the cold air passage and the warm air passage are connected to the cooling duct and / or the heating duct through the connecting pipe, the same effect as that of the first invention can be obtained. be able to.

By removing the connection paif, it is possible to blow cold air from the cooling duct into the passenger compartment to cool it, and warm air can be blown to the passenger compartment from the heating duct to heat the passenger compartment.

[Brief description of drawings]

1 shows a first embodiment of the present invention, (A) is a schematic vertical sectional view of a seat, (B) is a view taken along the arrow B of (A), and (C) is
It is an arrow line view which follows the C arrow of (A).

FIG. 2 is a schematic perspective view showing a mounting procedure of the cooling / heating duct of the first embodiment.

3A and 3B show a second embodiment of the present invention, in which FIG. 3A is a front view of a seat, and FIG. 3B is a view taken along the arrow B in FIG.

FIG. 4 is a schematic perspective view showing a conventional air conditioner for a bus.

[Explanation of symbols]

 26 Air-conditioning duct 10 Seat 11 Seat cushion 13 Seat back 12, 14 Air passage 15 Lower outlet 18 Upper outlet 17 Connection duct 16 Switching damper

Claims (2)

[Claims] 1. A cooling / heating duct is installed along a number of seats arranged in the vehicle interior at intervals in the front-rear direction, and an upper air outlet that blows conditioned air upward and a lower air outlet that blows conditioned air downward in each seat. Forming a communicating air passage, connecting the air passage to the cooling and heating duct via a connecting duct, and providing a switching damper for switching the conditioned air to the upper outlet or the lower outlet in the air passage. Air conditioning system for buses. 2. A cooling duct and a heating duct are installed along a number of seats arranged in the vehicle interior at intervals in the front-rear direction, and a cool air duct and a warm air duct are provided in each seat. An air conditioner for a bus, which is provided with a connection pipe for connecting the cold air passage and the warm air air passage to the cooling duct and / or the heating duct.