JP3180297B2 - Bus air conditioner - Google Patents

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 for controlling the air conditioning of a driver's seat, particularly in a bus cabin.

[0002]

2. Description of the Related Art Conventionally, in a bus, for example, as shown in FIG.
An air conditioner unit 1 is disposed at a central side of a vehicle 2 and a compressor (not shown) is rotated by a driving force of an auxiliary engine (not shown) built in the air conditioner unit 1 to operate a refrigeration cycle. . still,
A main engine 3 for traveling is arranged at the rear of the vehicle.

In this case, the operation of the air conditioner unit 1 sends out the air-conditioned air to the duct 4 disposed in the vehicle compartment, and blows the air into the vehicle compartment from the outlets 4a provided in each part of the duct 4. Thus, air-conditioning control such as heating, cooling or dehumidification is performed.

[0004] In addition to the above-described air conditioning control, a hot water defrost heater 5 is provided in the driver's seat 2a of the vehicle 2, and hot air is blown from an outlet provided at the foot of the driver's seat 2a. Heating can be performed by blowing the air out, or hot air can be blown out from an air outlet 5a provided toward the front glass 6 of the vehicle to remove the fogging of the glass surface.

[0005]

By the way, in recent buses, the number of passenger compartments in the passenger compartment has been increased to a higher floor, and thus the driver's seat tends to be a private room with respect to the passenger seat. Therefore, there is a demand for independently controlling the air-conditioning temperatures of the passenger seat portion and the driver seat portion.

[0006] In a high-speed bus or the like running at night, the optimum air-conditioning temperature for sleeping passengers and the optimum air-conditioning temperature for drivers may be different.
In a so-called salon bus or the like, the optimum temperature in the passenger compartment may differ from the optimal temperature in the driver's vehicle due to the passenger being in a drinking state. Therefore, it is necessary to independently control the air conditioning of the driver's seat and the passenger seat.

However, in the above-described conventional configuration, the driver's seat can be independently controlled only by the air-conditioning control function of the hot air blowout by the hot water type defrost heater 5, so that it can be controlled in the summer or in the middle. , There is a problem that the air conditioning control cannot be performed independently for the driver's seat. Further, such a hot water type defrost heater 5 has a problem that it is not possible to achieve a sufficient function with respect to demist during the rainy season or the like.

Therefore, in order to independently control the air conditioning of the driver's seat, for example, it is conceivable to provide an air conditioner unit for the driver's seat in the driver's seat 2a. However, if the air conditioner unit for the driver's seat is provided independently as described above, it is necessary to set various piping patterns corresponding to various vehicle specifications of the bus, which further increases the cost. is there.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a bus air-conditioning apparatus capable of independently performing air-conditioning control on a driver's seat portion with almost no hindrance while having a simple and inexpensive configuration. Is to provide.

[0010]

A bus air conditioner according to the present invention comprises a compressor for a refrigeration cycle, a transmission mechanism for transmitting the rotational force of the front wheels of the bus to the compressor and driving the compressor, and driving the compressor. It is characterized in that it is provided with an air conditioning unit for a driver's seat that can be driven and blow air that is air-conditioned and controlled from an outlet of a driver's seat in a vehicle cabin.

[0011]

According to the bus air conditioner of the present invention, the compressor for the refrigeration cycle can be driven by the transmission mechanism for transmitting the rotational force of the front wheels of the bus. The seat air-conditioning unit can be operated, and the air-conditioned air can be blown out from the outlet of the driver's seat in the vehicle cabin. Thus, the air conditioning control of the driver's seat can be performed independently and almost without any trouble at a low cost without having to lengthen the piping.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 2 shows the appearance of the entire configuration of the bus 11 and shows a portion related to the air conditioner in a see-through state. In FIG. 2, a main engine 12 for running the vehicle is disposed at the rear of the bus 11. The air-conditioning unit 13 for the guest room is disposed on the central side of the bus 11,
It is driven by a built-in auxiliary engine (not shown).

On both sides near the ceiling in the passenger compartment 11a, there are provided cooler ducts 14 each having a large number of air outlets 14a directed toward the passenger seats. Is provided with a heat duct 15 in which a number of outlets 15a are formed. These ducts 14, 1
The air-conditioning unit 5 is connected to the air-conditioning unit 13 so that air controlled by the air-conditioning unit 13 is supplied thereto. Hot air or cold air is blown out from the air outlets 14a and 15a toward each customer seat. I have.

An air conditioning unit 16 for the driver's seat is disposed at the center lower portion of the driver's seat 11b of the bus 11, and an air outlet (not shown) opened toward the driver's seat at a predetermined portion of the driver's seat 11b. Are provided. The air outlets of these air outlets are controlled to be air-conditioned from a duct connected to the driver seat air-conditioning unit 16.
The driver seat air conditioning unit 16 is provided with a cooling function to be described later and a defrost function by a conventional hot water defrost heater.

Axle 1 that rotates with front wheels 17 of bus 11
As shown in FIG. 1, a pulley 18 that rotates integrally therewith is fixed to 7a, and a refrigeration cycle compressor 19 is disposed near the front of the axle 17a. The compressor 19 operates the refrigeration cycle of the driver seat air conditioning unit 16 described above.

A pulley 20 is provided on the rotating shaft 19a of the compressor 19 via a magnet clutch (not shown) so as to be connectable.
A belt 21 for transmitting a rotational force is stretched between the pulley 18 and the pulley 18 fixed to a. When the front wheel 17 rotates, the rotational force is transmitted to the pulley 20 via the pulley 18 and the belt 21, and these constitute a transmission mechanism 22.

That is, when the magnet clutch is turned on and the rotating shaft 19a of the compressor 19 and the pulley 20 are connected, the rotating force of the front wheel 17 is transmitted to the rotating shaft 19a of the compressor 19 via the transmission mechanism 22. Driven to operate a refrigeration cycle.

According to the above configuration, when the front wheels 17 are rotating, that is, when the bus 11 is running,
The compressor 19 becomes operable by the rotational force of the front wheels 17 via the transmission mechanism 22. Therefore, when the magnet clutch of the compressor 19 is connected, the driver's seat air conditioning unit 16 is operated, and the driver's seat 11
Air that is air-conditioned is blown out from each of the outlets b.

Therefore, when the bus 11 is in a running state and the air conditioning control in the driver's seat 11b is required, the driver's seat air conditioning unit 16 is operated to independently control the air conditioning of the driver's seat 11b. Can be. The air conditioning unit 13 can perform air conditioning control on the passenger seat at an optimum temperature according to the passengers.

When the operating state of the compressor 19 changes due to a change in the traveling speed of the bus 11, the operation of the compressor 19 is controlled by turning on and off the magnet clutch, or the air volume of the air conditioning unit 16 for the driver's seat is switched. Air conditioning control can be performed so as to suppress fluctuations by providing a bypass path for air and air.

When the bus 11 is stopped and the front wheels 17 are not rotating, the air conditioning unit 16 for the driver's seat cannot perform the cooling operation. The same cool air as in the inside 11a can be blown out to the driver's seat section 11b, and an independent heating operation can be performed by the hot water type defroster function by the driver's seat air conditioning unit 16.

According to the present embodiment, the compressor 19 is disposed near the front wheels 17 of the bus 11, and
Is transmitted to the compressor 19 via the transmission mechanism 22 to operate the air conditioner unit 16 for the driver's seat. The air-conditioning control of the driver's seat 11a can be performed independently without any hindrance without a significant increase in cost.

In the above embodiment, the pulley 18 is provided on the axle 17a of the front wheel 17. However, the present invention is not limited to this, and the pulley 18 may be directly fixed to the front wheel 17 to transmit its rotational force.

In the above embodiment, the case where the present invention is applied to a bus air conditioner driven by an auxiliary engine has been described. However, the present invention is not limited to this, and is applicable to a bus air conditioner driven by a main engine for traveling. You may.

[0025]

According to the bus air conditioner of the present invention, the compressor for the refrigeration cycle is driven by the transmission mechanism for transmitting the rotational force of the front wheels of the bus, thereby operating the driver's seat air conditioning unit. Therefore, since the air conditioning control of the driver's seat is performed independently, it is not necessary to set various piping patterns corresponding to various specifications of the bus. This provides an excellent effect that the overall efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a front part of a bus showing a part of an air conditioner in an embodiment of the present invention in a see-through state.

FIG. 2 is an overall perspective view showing the air conditioner part in a see-through state.

FIG. 3 is a diagram corresponding to FIG. 2 showing a conventional example.

[Explanation of symbols]

11 is a bus, 11a is a passenger compartment, 11b is a driver's seat, 13 is an air conditioning unit for a passenger seat, 14 is a cooler duct, 15 is a heat duct, 16 is an air conditioning unit for a driver's seat, 17 is a front wheel,
17a is an axle, 18 and 20 are pulleys, 19 is a compressor, 21 is a belt, and 22 is a transmission mechanism.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60H 1/32

Claims (1)

(57) [Claims] 1. A compressor for a refrigeration cycle, a transmission mechanism for transmitting a rotational force of a front wheel of a bus to the compressor and driving the compressor, and an air conditioner driven by the compressor to be driven by an outlet of a driver's seat in a vehicle compartment. An air conditioner for a bus, comprising: an air conditioning unit for a driver seat capable of blowing controlled air.