JPH0585148A - Air conditioner for vehicle - Google Patents

Abstract

PURPOSE:To accurately adjust temperature and amount of air blown into a cabin by uniformizing the amount of air for ventilating an evaporator in each thereof. CONSTITUTION:Air blown from a blower 1 is left as it is partly to ventilate an evaporator 3 without colliding against an L-shaped plate 8. The rest of air partly collides against the first guide part 6 of the L-shaped plate 8 and thereafter to advance toward downward in the drawing. By action of this first guide part 6, a ventilating air amount in a right side part in the drawing of the evaporator 3 is increased to uniformly generate distribution of an evaporator ventilating air amount in right/left directions in the drawing. Air colliding against the first guide part 6 partly advances toward the internal side of a paper surface in the drawing by the second guide part 7. By action of this second guide part 7, an amount of ventilating air in the internal side of the paper surface in the drawing of the evaporator 3 is increased to uniformly generate distribution of an evaporator ventilating air amount in a vertical direction of the paper surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air conditioner for controlling air conditioning in a vehicle compartment.

[0002]

2. Description of the Related Art A conventional vehicle air conditioner is generally shown in FIG.
As shown in FIG. 5 and FIG. 5, the blower duct 2 accommodating the blower 1 is connected to the cooler duct 4 accommodating the evaporator 3, whereby the air generated by the blower 1 is passed through the evaporator 4. Figure 4
FIG. 5 is a partial cross-sectional view showing a connection state between the blower duct 2 and a part of the cooler duct 4, and FIG. 5 is an external view of the device shown in FIG.

[0003]

However, in the apparatus shown in FIG. 4, the amount of air passing through the evaporator 3 farther from the blower 1 is large, and conversely, the evaporator 3 nearer to the blower 1 is larger.
There is less air passing through. If the amount of air passing through the evaporator 3 is different at each location of the evaporator 3 as described above, there arises a problem that the temperature control adjustment of the air blown into the vehicle compartment or the air volume adjustment cannot be accurately performed.

As a method of solving the above problem, there is a method of providing a rectification guide 5 in the cooler duct 4 on the upstream side of the evaporator 3, as shown in FIG. According to this method, the ventilation air amount distribution of the evaporator 3 is certainly uniform in the horizontal direction in FIG. However, depending on the layout of the vehicle and the like, the position of the blower 1 may be different from that shown in FIG.
Shift to either the vertical direction of the paper (left and right direction in Fig. 5),
When the distribution of the amount of ventilation air of the evaporator 3 deviates to either of the above directions in the direction perpendicular to the paper surface of FIG. The amount of air cannot be made uniform.

Therefore, according to the present invention, not only the left and right directions in FIG. 6, but also the air flow rate of the evaporator in the direction perpendicular to the paper surface of FIG. 6 are made uniform, and the temperature and quantity of air blown into the vehicle compartment can be accurately adjusted. The purpose is to provide an air conditioner for use.

[0006]

In order to achieve the above object, the present invention provides a blower for blowing air into a passenger compartment, a blower duct for accommodating the blower, an evaporator for cooling the air, and the blower duct. A cooler duct connected to the blower, the cooler duct accommodating the evaporator at a position substantially orthogonal to a blowing direction of the air from the blower, wherein the blower is arranged eccentrically with respect to the center of the cooler duct. In an air conditioner, it is provided on the eccentric side of the cooler duct and on the side close to the blower, faces a part of the air blown from the blower, and intersects the air substantially at a right angle with the evaporator. And a first guide portion that guides the air so as to intersect the first guide portion, and the air on the side opposite to the eccentric side is provided for the air. Air conditioning system and having a second guide portion for guiding to intersect porator.

[0007]

When the blower is eccentrically arranged with respect to the center of the cooler duct, a part of the air blown from the blower is arranged in the cooler duct on the eccentric side and on the side close to the blower. The vehicle collides with the first guide portion and is guided to the evaporator so that a large amount of air is passed through the evaporator near the blower. As a result, the amount of air ventilated by the evaporator in the direction of the air flow can be made uniform.

Further, a part of the air blown from the blower collides with the second guide portion and is guided to the evaporator portion opposite to the eccentric side. as a result,
A large amount of air is also ventilated to the evaporator portion on the opposite side to the eccentric side, and the air flow distribution of the evaporator ventilation can be made uniform between the eccentric side and the opposite side.

In summary, in the present invention, by providing the first guide portion and the second guide portion, it is possible to make the evaporator ventilation air amount distribution uniform as a whole.

[0010]

In the vehicle air conditioner according to the present invention, the evaporator ventilation air amount distribution can be made uniform as a whole, so that the temperature and amount of air blown into the passenger compartment can be accurately adjusted. As a result, the inside of the vehicle can be controlled to an appropriate temperature.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a partial cross-sectional view showing an embodiment of the present invention, and FIG. 2 is an external view of the device shown in FIG. 1 as seen from the direction of arrow B in FIG. The blower 1 is not shown in FIG. 2 for the convenience of drawing.

As shown in FIG. 1, when the blower duct 2 and the cooler duct 4 are connected to allow the air generated by the blower 1 in the blower duct 2 to pass through the evaporator 3 in the cooler duct 4, the amount of air passing through the evaporator 3 Is
In general, the amount is increased toward the left side in FIG. 1 and is decreased toward the right side.

Further, in this embodiment, as shown in FIG. 2, the blower duct 2 is eccentrically arranged on the left side in the figure with respect to the center of the cooler duct 4. When the blower duct 2 is eccentrically arranged on the left side in FIG. 2 in this way, the air blown from the blower 1 (see FIG. 1) in the blower duct 2 becomes
Fig. 2 Evaporator 3 arranged on the back side of the paper (see Fig. 1)
The air volume distribution of the evaporator 3 is also shown in Fig. 2 when ventilation is performed.
It is common to eccentric to the middle left side.

Therefore, in this embodiment, the evaporator 3 is used.
By providing the L-shaped plate 8 in which the first guide portion 6 and the second guide portion 7 are integrated in the cooler duct 4 on the more upstream side,
The air amount distribution is made uniform.

The details will be described below. In FIG. 1, the air generated by the blower 1 is blown from the blower duct 2 to the cooler duct 4 as indicated by the dashed line arrow in the figure,
First, the first guide portion 6 of the letter plate 8 collides. Then, a part of the air after the collision proceeds toward the evaporator 3 directly below the L-shaped plate 8 and passes through the evaporator 3 at that part. As a result, the ventilation amount in the right side portion of the evaporator 3 in FIG. 1 is increased, and as a result, the ventilation air amount distribution of the evaporator 3 in the left-right direction in FIG. 1 becomes uniform.

The rest of the air blown from the blower duct 2 and colliding with the first guide portion 6 collides with the first guide portion 6 and then collides with the second guide portion 7, and the rear side of the plane of the drawing in FIG. Proceed downward (to the lower right in FIG. 2), and ventilate the evaporator 3 as it is. As a result, the ventilation amount in the right side portion of the evaporator 3 in FIG. 2 increases, and as a result, the ventilation air amount distribution of the evaporator 3 in the left-right direction in FIG. 2 becomes uniform.

From the above results, the deviation of the ventilation amount of the evaporator 3 in the case where the L-shaped plate 8 is not provided in this embodiment is eliminated by providing the L-shaped plate 8 in the portion shown in FIGS. 1 and 2, and the evaporator is eliminated. 3 Ventilation air amount distribution becomes uniform as a whole.

In the above embodiment, the first guide portion 6 and the second guide portion 7 are provided so as to be orthogonal to each other.
If the air colliding with the guide portion 7 is guided so as to intersect with the evaporator 3 on the side opposite to the side that is eccentric to the center of the cooler duct 4, how the second guide portion 7 is moved relative to the first guide portion 6 will be. They may intersect at different angles. That is, the flow order until the air blown from the blower 1 is guided so as to intersect with the evaporator 3 on the opposite side is as follows: the blower 1, the first guide portion 6, the second guide portion 7, and the evaporator 3.
The order of the blower 1, the second guide section 7, the first guide section 6, and the evaporator 3 may be the order, or the order of the blower 1, the second guide section 7, and the evaporator 3 may be the order.

The first guide portion 6 and the second guide portion 7 may be connected by a smooth curve. Further, the second guide portion 7 may be configured by using the wall surface of the cooler duct 4.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing an embodiment of the present invention.

FIG. 2 is an external view of the device shown in FIG. 1 as seen from the direction of arrow B.

FIG. 3 is a perspective view showing an L-shaped plate including a first guide portion and a second guide portion.

FIG. 4 is a partial cross-sectional view showing a connection state of a conventional vehicle air conditioner with a blower duct and a cooler duct.

5 is an external view of the device shown in FIG. 5 viewed from the direction of arrow A. FIG.

FIG. 6 is a partial cross-sectional view showing a conventional example in which a rectifying guide is provided on a cooler duct.

[Explanation of symbols]

 1 Blower 2 Blower Duct 3 Evaporator 4 Cooler Duct 6 First Guide 7 Second Guide

Claims (1)

[Claims] 1. A blower that blows air into a vehicle compartment, a blower duct that houses the blower, an evaporator that cools the air, and a blower duct that are connected to each other, and are substantially connected to a blower direction of the air from the blower. A cooler duct in which the evaporator is housed at a position orthogonal to the blower, and the blower is arranged eccentrically with respect to the center of the cooler duct, wherein the eccentric side of the cooler duct and the blower are provided. A first guide portion that is provided on a side closer to the air blower, faces the part of the air blown from the blower, and guides the air so as to intersect the evaporator substantially at a right angle; A second guide portion that is provided so as to intersect with the second guide portion that guides the air so as to intersect with the evaporator on the side opposite to the eccentric side. Air conditioning system characterized by.