JPH03157262A - Air conditioner for vehicle - Google Patents

Abstract

PURPOSE:To perform stable and high-efficient introduction of the open air during high or low speed running of a vehicle by a method wherein an open air introduction port through which the open air is introduced to an outdoor blower in a device frame body is formed in the front, in the advancing direction of a vehicle, of the device frame body. CONSTITUTION:Refrigerant gas compressed by a refrigerant compressor 2 flows to a condenser 7, where the refrigerant gas is cooled and liquefied by means of outdoor air fed from an outdoor blower 6. The outdoor air is sucked through an open air intake port 10 and exhausted through an exhaust port 9 through the condenser 7. Meanwhile, a liquefied refrigerant flows to a cooler 3, which cools indoor air delivered from an indoor blower 4 to gasify the indoor air. In the above device, the open air introduction port 10 is formed in the front part of a device frame body. A filter 11 is fitted in the open air introduction port 10. This constitution performs stable and high-efficient introduction of the open air to the open air introduction port 10 during high or low speed running of a vehicle.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vehicle air conditioner installed on the roof of a vehicle.

[Conventional technology]

Figure 4 is a plan view showing a conventional vehicle air conditioner;
The figure is a cross-sectional view taken along the line VV of the fourth factor, and FIG. 6 is a cross-sectional view taken along the line vt-vt in FIG. 4.

In the above, l is an air conditioner frame installed on the roof of the vehicle, (2) is a refrigerant compressor, (3) is a cooler, and (4) is an air conditioner frame.
is an indoor blower, (5) is an air inlet inside the car, (6) is an outdoor blower, (7) is a condenser, and (8) is an outdoor blower with a circular shape approximately the same diameter as the outdoor blower (6) above it. An outside air intake port having an opening, (9) is an outdoor air outlet.

Next, the operation will be explained.

The refrigerant gas compressed by the refrigerant compressor (2) and sent out reaches the condenser (7).Here, the refrigerant is forcibly cooled and liquefied by outdoor air supplied by the outdoor blower (6).This outdoor air is The outside air is sucked in from the outside air intake (8), and the air is sucked into the condenser (7).
) is cooled and discharged through the discharge port (9). The liquefied refrigerant passes through an expansion mechanism (not shown) and reaches the cooler (3), where it exchanges heat with the air inside the car supplied by the indoor air blower fi (41). By repeating this process, the air inside the car is absorbed by the refrigerant, cooled, and then sent out into the car for cooling.

[Problem to be solved by the invention]

Since the conventional vehicle air conditioner is configured as described above, when the vehicle is running at high speed, as shown in FIG. It is inhaled at a speed corresponding to the synthesis (C) with b). As a result, sufficient air cannot be sucked in in the direction in which the vehicle is traveling, resulting in insufficient air volume and an abnormally high refrigerant pressure. Another problem was that dust and water droplets hit the outdoor blower.

This invention was made in order to solve the above-mentioned problems, and aims to provide an air conditioner for a vehicle that can take in sufficient outdoor air even when the vehicle is running at high speed, and can also prevent dust and water droplets. The purpose is to obtain.

[Means to solve the problem]

The air conditioner for a vehicle according to the present invention has an outside air inlet for the outdoor blower of the air conditioner frame disposed at the front in the direction in which the vehicle travels, and a filter is provided at the outside air inlet.

[For production]

The air conditioner for a vehicle according to the present invention has an outside air inlet at the front in the direction of travel of the vehicle and a filter so that a sufficient amount of outside air is supplied to the outdoor blower and prevents dust and water droplets from entering.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
In Figures 3 to 3, (IQ is an outside air inlet provided in the front part of the air conditioner frame ()), and 0υ is a filter fitted into this outside air inlet QQ.

Note that the arrow (c) is the direction of travel of the train, etc.

The matco and other configurations are the same as those of the prior art, so explanations will be omitted.

Next, the operation will be explained. The outside air inlet window Q of the air conditioner frame (1) (J is facing the direction of travel of the train, etc.
Outside air is introduced from the front.

This one is equipped with a filter of 0υ in consideration of dust, etc., but regardless of whether it is at high speed or low speed, the air is blown from the front by wind pressure and introduced, so the outdoor air volume is sufficiently large. ). At that time, since the inlet (1) is equipped with a filter, it is possible to prevent dust and water droplets from being sent to the outdoor fan.

〔Effect of the invention〕

As described above, according to the present invention, the outside air introduction to the outdoor blower of the air conditioner frame is arranged on the curved surface in the traveling direction of the train, etc., and the outside air introduction port is provided with a filter. Matoko has the effect of not only providing a stable supply of outdoor air when driving at low speeds, but also preventing dust and water droplets.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing a vehicle air conditioner according to an embodiment of the invention, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is a cross-sectional view taken along the line m-■ in Fig. 1. 4 is a plan view showing a conventional vehicle air conditioner, FIG. 5 is a sectional view taken along the line v-■ in FIG. 4, and FIG. 6 is a sectional view taken along the line ■-■ in FIG. FIG. In the figure, (1) is an air conditioner frame, (6) is an outdoor blower, 00 is an outside air inlet, and 0υ is a filter. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (2)

[Claims] (1) The above-mentioned air conditioner in a vehicle air conditioner that takes outside air into an outdoor blower inside the air conditioner frame through an outside air inlet that is installed on the roof of the vehicle and opens toward the top of the air conditioner frame. An air conditioner for a vehicle, characterized in that an outside air inlet to the outdoor blower of the frame is arranged at the front in the direction of travel of the vehicle. (2) In the air conditioner for a vehicle, which takes in outside air to an outdoor blower inside the air conditioner frame through an outside air inlet that is installed on the roof of the vehicle and opens toward the top of the air conditioner frame, the above-mentioned air conditioner An outside air inlet to the outdoor blower in the device frame is arranged at the front in the direction of travel of the vehicle, and
An air conditioner for a vehicle, characterized in that a filter is provided at the outside air inlet.