JPS6127716A - Vehicle air-conditioning device - Google Patents

Abstract

PURPOSE:To make it possible to ensure a sufficient amount of air for side defroster ducts, by disposing a front defroster door and a ventilator change-over door to air distribution ports which partition and divide front and sided efroster ducts from each other by use of a partition plate. CONSTITUTION:Upon high level mode, a front door 23 alone is fully opened while a subvent door 28 and a front door 30 are halfly opened, and an air mixing door is changed over to allow air blown from air distributing ports 22, 25, 27, 31 to be changed into cold or or hot air. Upon foot mode the door 24 is moved to fully open both ventilator distribution air port 25 and side defroster distribution air port 22, and to fully open the front door 24. Upon heat mode the door 23 is halfly opened while the door 24 is set to the air distribution port 25 side, the side vent door 28 is fully closed, and the door 30 is halfly opened to blow out hot air. Upon defrosting mode the doors 23, 24 are set to fully open the distribution air ports 21, 22 and to fully close the remaining ports to deblurr and defrost the front and side glass panes. Accordingly, it is possible to ensure a sufficient amount of air for the side defrosters upon mode other than the vent mode.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vehicle air conditioner used for air conditioning inside a vehicle such as an automobile.

(Prior Art) As a conventional vehicle air conditioner, for example, those shown in FIGS. 8 and 9 are known. (“Nirasan Service Bulletin No. 484, Introduction of Y30 series cars” 1932)
Published by Nissan Motor Co., Ltd. on June 2, 1999; see pages 418 and 419) This conventional device is a heater unit duct) 10
A front defroster duct 101 and a side defroster duct 102 are arranged in the upper part of the 0, and a defroster air distribution port 103 that distributes air in common to both the defroster ducts 101 and 102 is opened. was set up.

In addition, in FIG. 8 and FIG. 9, 105 is an outside air inlet;
106 is an internal air intake port, 107 is an intake door, 108
is a proa fan, 109 is a heater duct, 110 is a heater core, 111 is an air mix door, 112 is a distributor section, 113 is a ventilator air distribution port, 11
4 is a vent door, 115 is a rear floor duct, 116 is a front floor duct, 117 is a floor ventilation opening, 118
is a floor door.

Therefore, the front defroster duct lO1 and the side defroster duct) 10 from the heater unit duct 100
By opening the differential door 104, the air is distributed to the
Both ducts from the shared defroster air outlet 103) lot,
102 at the same time.

In addition, on the other side of the conventional air conditioner,
There is one described in Japanese Patent No.-98217.

In this conventional device, similar to the conventional example described above, the air distribution ports of the front defroster duct and the side defroster duct are opened in parallel, a single damper as a differential door is provided at this air distribution port, and furthermore, this damper has a certain Below the opening degree, a convex portion was formed to distribute air to only one duct.

(Problems to be Solved by the Invention) However, such conventional vehicle air conditioners have the following problems: (1) In the former conventional example, the front defroster duct 1
01 and the side defroster duct 102 are shared by one defroster air distribution port 103, and the single defroster air distribution port 103 is provided with a single differential door 104. By increasing the amount of air distributed from the lance to the front defroster duct 101, the amount of air distributed to the side defroster duct 101 is increased.
The amount of air distributed to 02 was small.

(2) In the latter conventional example, a convex part is formed on the bump/<, and the ventilation openings of both ducts are opened and closed with a single bump, so it is difficult to improve the precision of processing and assembly. There were manufacturing difficulties such as air leakage.

(Means for Solving the Problems) Therefore, the present invention was made for the purpose of solving the above-mentioned problems.To achieve this purpose, in the present invention, the heater unit a front defroster duct provided along the outer peripheral surface of the front defroster duct, a side defroster duct provided along the outer peripheral surface of the front defroster duct, and a defroster air distribution port opened at the upper part of the heater unit duct and distributing air to the front defroster duct and the side defroster duct. A vehicle air conditioner comprising: a differential door provided at the defroster air distribution port; a venturator air distribution port opened at a side of the heater unit duct; and a vent door provided at the ventilator air distribution port. By partitioning the front defroster duct and the side defroster duct with a partition wall, the defroster air distribution port is divided into a front defroster air distribution port and a side defroster air distribution port, one front defroster air distribution port is provided with a front defroster door, and the other side defroster air distribution port is provided with a front defroster door. The defroster air distribution port is provided with a switching door that can be opened and closed by switching between the defroster air distribution port and the ventilator air distribution port.

(Function) Therefore, in the vehicle air conditioner of the present invention, the defroster air distribution port is divided into a front defroster air distribution port and a side defroster air distribution port, and each air distribution port is provided with a front differential door and a switching door. By opening the side defroster air distribution port using the switching door in a mode other than the vent mode in which the vent inflator air distribution port is opened, a sufficient amount of air distribution to the side defroster duct can be ensured.

(Example) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In describing this embodiment, an air conditioner for an automobile will be used as an example.

First, the configuration of the embodiment shown in FIGS. 1 and 2 will be explained.

Reference numeral 1 denotes an air introduction duct, in which an outside air introduction port 2 and an inside air introduction port 3 are opened, and an intake door 4 for switching between inside and outside air is provided between the re-introduction holes 2 and 3. is provided.

5 is a fan casing, and the air introduction duct 1
A pro fan 6 is disposed inside the fan casing 5, and a fan motor 7 is provided on the pro fan 6.

Reference numeral 8 denotes a heater duct, which is connected between the fan casing 5 and a heater unit duct 9, which will be described later.The illustrated heater duct 8 is an example without a cooler, but in the case of a cooler, an evaporator is connected to the heater duct. can be installed.

Reference numeral 9 denotes a heater unit duct. Inside the heater unit duct 9, a heater core 10 and an air mix door 11 are arranged on the heater duct side, and an air distribution system is arranged on the downstream side of the heater core 10 and air mix door 11. A distributor section 12 is formed for this purpose.

Reference numeral 13 denotes a front defroster duct, which is disposed above the heater unit duct 9. This front defroster duct 13 has an upwardly expanding diffuser shape, and its upper end extends to the instrument panel 14, and has an air outlet. 15 is provided with a blowing nozzle 16 from the instrument panel 14 side.

Reference numeral 17 denotes a side defroster duct, which is installed along the outer peripheral surface of the front defroster duct 13.
The air outlet 18 of this side defroster duct 17 is opened toward the door glass of the automobile.

Incidentally, the air outlet 15 of the front defroster duct 13 is opened toward the windshield 19 of the automobile.

20 is a partition wall, and the front defroster duct 1
3 and the lower part of the side defroster duct 17 toward the air distribution port of the heater unit duct 9 to partition both the defroster ducts 13. It is divided into a side defroster air distribution port 22.

A front differential door 23 is provided at the front defroster air distribution port 21, and the front differential door 23 can be opened and closed in three stages: fully closed, half open, and fully open.

Reference numeral 24 denotes a switching door, which is provided between the side defroster air distribution port 22 and the first ventilator air distribution port 25. is rotatably supported,
The rewriting air vents 22 and 25 are provided so that they can be opened and closed using a single switching door 24.

Note that this switching door 24 is connected to the side defroster air distribution port 22.
and the first ventilator air distribution port 25 are opened and closed in three stages: fully closed - fully open, half open - half open, and fully open - fully open. In the mode, the side defroster air distribution port 22 is in an open state.

Reference numeral 27 denotes a second ventilator air distribution port, which is opened at the lower part of the first ventilator air distribution port 25.
A sub-vent door 28 is provided which is interlocked with opening and closing of the first ventilator air distribution port 25 by the ventilator 4.

The switching door 24 has both the functions of a vent door and a side differential door, and the sub-vent door 28 has an auxiliary role as a vent door, and is connected to the second ventilator air distribution port 27 and the sub-vent door. 28 may be omitted.

Reference numeral 29 denotes a rear floor duct, which is disposed below the heater unit duct 9 and distributes air from a floor ventilation opening 31 provided with a floor door 30 to the rear seat side of the automobile.

Reference numeral 32 denotes a front floor duct, which is provided integrally with the floor door 3.
0 and the floor ventilation port 31 are shared, and the floor ventilation port 31
The system blows air from the air to the feet of the front seats of a movable vehicle.

Next, the operation of the embodiment will be explained.

In an automobile air conditioner, various air blowing conditions can be obtained by switching an air control dial provided in the vehicle interior to a desired mode, and each mode will be described below.

(B) Vent mode (see Figure 3) This vent mode is
In this mode, cool air or warm air is blown toward the vehicle interior from the front defroster air distribution hole 21.7, as shown in FIG. The side defroster air outlet 22 and the floor air outlet 31 are connected to the front differential door 23. The switching door 24 and the floor door 30 are closed, and the first ventilator air distribution port 25 and the second ventilator air distribution port 27 are in a fully open state.

(b) Pie level mode (see Fig. 4) This pie level mode is a mode in which air is blown out from both venturator air distribution ports 25, 27, the floor air distribution port 31, and the side defroster air distribution port 22, and is shown in Fig. 4. As shown, only the front differential door 23 is fully closed, and the other switching doors 24.
The subvent door 28 and the floor door 30 are in a half-open state.

In addition, by switching the air mix door 11, the wind blown out from each of the air distribution ports 22, 25, 27, and 31 can be switched to cool air or warm air.

(C) Foot mode (see FIG. 5) This foot mode is a mode in which air is blown out from the floor ventilation opening 31 and the side defroster ventilation opening 22,
As shown in FIG. 5, the first ventilator air distribution port 25 is fully opened by the switching door 24, the side defroster air distribution port 22 is fully opened, and the floor door 30 is fully opened.

Note that the front differential door 23 and sub vent door 28 are fully closed.

(d) Heat mode (see Fig. 6) This heat mode is a mode in which hot air is blown from the floor air distribution port 31, the front defroster air distribution port 21, and the side defroster air distribution port 22, as shown in Fig. 6. ,
The front differential door 23 is half open, the switching door 24 is on the first ventilator air distribution port 25 side, and the sub vent door 28 is fully closed.
This is a state in which the floor door 30 is half-open.The air distribution ratio is about 20% on the defroster side and about 80% on the floor side, which distributes air to the feet. .

(E) Defroster mode (see Fig. 7) This defroster mode is a mode in which air is blown out from the front defroster air outlet 21 and the side defroster air outlet 22, and as shown in Fig. 7, the front defroster door 23
and both defroster air distribution ports 21.2 by the switching door 24.
2 is fully opened, and the other doors are fully closed.

Therefore, in this differential mode, it is possible to remove fog or frost from the windshield 19 and side windows.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention may be modified without departing from the gist of the present invention. included.

(Effects of the Invention) As described above, according to the vehicle air conditioner of the present invention, the defroster air distribution port is divided into the front defroster air distribution port and the side defroster air distribution port, and each air distribution port is connected to a front differential door. A switching door is provided, and this switching door allows the side defroster air distribution port to be opened in modes other than the vent mode, which opens the venturator air distribution port, making it possible to secure a sufficient amount of air distribution to the side defroster. Effects can be obtained.

In addition, taking advantage of the fact that air needs to be distributed to the side defroster air outlet in modes other than vent mode, a single switching door is used as both the side defroster door and the vent door.
It is also simple in configuration.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a vehicle air conditioner according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line I-I in FIG. 1, and FIG. 3 is a sectional view showing the vent mode state of the embodiment device. FIG. 4 is a sectional view showing the pie level mode state of the embodiment device, FIG. 5 is a sectional view showing the foot mode state of the embodiment device, and FIG. 6 is a sectional view showing the heat mode state of the embodiment device. FIG. 7 is a sectional view showing the differential mode state of the embodiment device, FIG. 8 is a sectional view showing a conventional vehicle air conditioner, and FIG. 9 is a sectional view taken along the line ■-■ in FIG. 9... Heater unit duct 13... Front defroster duct 17... Side defroster duct 20... Partition wall 21... Front defroster air outlet 22... Side defroster air outlet 23... Front differential door 24 ...Switching door 25...First ventilator air distribution port (Henturator air distribution port) Patent application Nissan Motor Co., Ltd.

Claims (1)

[Claims] 1) A front defroster duct located above the heater unit duct, a side defroster duct provided along the outer peripheral surface of the front defroster duct, and a front defroster duct and a side defroster duct opened at the top of the heater unit duct. A defroster air distribution port that distributes air to the duct, a defroster air distribution port provided at the defroster air distribution port, a ventilator air distribution port opened at a side of the heater unit duct, and a vent door provided at the ventilator air distribution port. In the vehicle air conditioner equipped with the above, the front defroster duct and the side defroster duct are separated by a partition wall to divide the defroster air outlet into a front defroster air outlet and a side defroster air outlet, and one front defroster air outlet has a 1. An air conditioner for a vehicle, characterized in that a front differential door is provided, and the other side defroster air distribution port is provided with a switching door that opens and closes switching between the side defroster air distribution port and the ventilator air distribution port.