JPS60161211A - Rear seat air-conditioner for car - Google Patents

Abstract

PURPOSE:To improve the efficiency by feeding conditioned air produced from an air-conditioning unit at the front section through a duct coupled immediately after a heat-exchange core to the rear seat side and regulating with a damper thereby performing the temperature adjusting at the rear seat side independently. CONSTITUTION:Upon push-down of temperature adjusting lever 18 around a fixed shaft 19, a damper 16 will rotate through a supporting arm 17 by the angle corresponding with the push-down width of lever 18 into the duct 1 through rotary shaft 20 thus to take the room air into the duct 1. A blower 3 is provided in the duct 1 in downstream of damper 16 to feed the room air near the rear seat forcefully through a feed port 2 into the duct 1 thus to mix the room air and cold wind to be fed from the front of duct 1 and feed through rear blow-out port 15 toward the rear seat. Rotation of blower 3 can be adjusted through adjusting mechanism provided at the rear seat side while the air flow to be fed through the rear blow-out port 15 can be adjusted independently from the front seat resulting in improvement of fan efficiency.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to an air conditioner for a rear seat of an automobile.

(Prior art) Conventionally, warm air or cold air, or a mixture of both, generated by an air conditioning unit installed at the front of a car is used to
An air conditioner that supplies air to the rear seats through a duct installed in the console box (for example,
(See Publication No. 007).

However, in this type of air conditioner, the air conditioned air is directly sent from the front of the car through a duct to the rear seats, so the temperature on the rear seats depends on the temperature adjustment on the front seats, and the temperature on the rear seats depends on the temperature adjustment on the front seats. It was not possible to adjust the temperature. Furthermore, the temperature at which the air-conditioned air is blown out on the rear seat side was lower than that on the front seat side due to heat loss within the duct.

(Object of the Invention) In view of the above points, the present invention is an automobile that is capable of adjusting the temperature on the rear seat side independently of the temperature adjustment on the front seat side, and also improves the air blowing efficiency on the rear seat side. The purpose of the present invention is to provide an air conditioner for rear seats.

(Structure of the Invention) The present invention provides an introduction system for sucking indoor air into a duct that is led to the rear seat side from immediately after the heat exchange core of an air conditioning unit installed in the front part of an automobile. This invention relates to a rear seat air conditioner in which the opening/closing degree of the introduction [ ] is adjusted via a damper.

(Example 1) The configuration of the present invention will be described below with reference to the drawings.

In this example, the cold air flowing through the duct 1 and the indoor air introduced through the inlet 2 are forcibly blown toward the rear seat side by the blower 3, as shown in FIGS. 1 and 2.

In FIG. 1, an outside air introduction duct 5 and an indoor air circulation duct 6 are connected to the upstream side of the air conditioning unit 4, and a connection between the two ducts 1-5°6 and into the main duct 7 is connected to the air conditioning unit 4. A damper 8 is provided to selectively introduce inside and outside air.

Inside the main duct 7, there is a blower fan 9. Evaporator 1
0. Heater cores 11 are sequentially arranged at intervals from the upstream side, and behind the heater cores 11 is a foot air outlet 3, for example.
It is connected to each air outlet 12 such as the passenger head air outlet.

Immediately after the evaporator 10, one end of the duct 1 is connected via a damper 13, and the duct 1 is branched into two parts within the console box 14 (see FIGS. 4(A) and 4(B)). Cool air is blown out toward the rear seats from a rear air outlet 15 provided at the rear end of the box 14.

In addition, an inlet 2 for introducing indoor air into the duct 1 is provided near the rear outlet 15 of the duct J, and the inlet 2 controls the mixing ratio of the amount of cold air in the duct 1 and the amount of indoor air. A damper 16 for adjustment is provided.

FIG. 2 shows a specific aspect of the vicinity of the damper 16.

A damper 16 that adjusts the amount of indoor air introduced through the inlet 2 and 7 is connected to a support arm 17 and a temperature adjustment lever 1.
8 are connected in the form of a link, and the operation is performed by operating this link mechanism. That is, the temperature adjustment lever 18
When pressed downward around the fixed shaft 19, the damper 16 is rotated through the support arm 17 into the duct 1 through the rotation shaft 20 by an angle corresponding to the width of the temperature adjustment lever 18 pressed down. indoor air is taken into duct 1.

On the other hand, the blower 3 is installed in the ducts 1 to 1 on the slightly downstream side of the damper 16.
The blower 3 forcibly introduces the indoor air near the rear seats into the duct 1 from the inlet 2, and mixes this indoor air with the cold air flowing from the front of the duct 1. Then, air is blown from the rear air outlet 15 toward the rear seats.

Further, the rotation speed of the blower 3 can be adjusted by an adjustment mechanism (not shown) provided on the rear seat side, and the amount of air blown from the rear air outlet 15 can be adjusted.

(Example 2) In this example, indoor air is sucked into the duct 1 using the negative pressure generated by the cold air flowing inside the duct 1, and the configuration other than the vicinity of the damper 16 is the same as in Example 1. . In this case, indoor air is introduced into the duct 11 through an indoor air intake duct 21 branched from the inlet 2 of the duct 1. The indoor air intake duct 21 is composed of 9 small ducts attached to the duct 1 from the inlet 2 toward the upstream side of the duct 1, for example, as shown in FIG.

In addition, in "Example 1 and Example 2,"
An example is shown in which one end of the duct 1 is connected immediately after the evaporator 10, but the heater core is not limited to this case.
A hot air duct is also provided immediately after 1, and the temperature of not only cold air but also warm air can be adjusted on the rear seat side by opening and closing the damper 22.

In addition, a room temperature sensor (not shown) is provided on the rear seat side, and the room temperature detected by the room temperature sensor is measured.

Follows the preset temperature.

The air volume of the blower 3 and the opening degree of the damper 16 in the first embodiment, and the opening degree of the damper 16 in the second embodiment can also be automatically adjusted.

(Effects of the Invention) According to the present invention, the conditioned air generated in the air conditioning unit installed in the front part of the automobile is guided to the rear seat side through the duct connected immediately after the heat exchange core. The opening/closing degree of the installed introduction 1] is adjusted by a damper,
Since the amount of indoor air taken into the duct can be adjusted arbitrarily, it is possible to adjust the temperature on the rear seat side independently of the temperature adjustment on the front seat side.

Further, one end of the duct is provided immediately after the heat exchange unit, and the conditioned air is directly guided into the duct, so that the efficiency of air conditioning on the rear seat side is improved.

[Brief explanation of drawings]

The drawings illustrate an embodiment of the air conditioner for a rear seat of an automobile according to the present invention. FIG. 1 is a schematic diagram showing the arrangement of the duct in relation to the evaporator and the heater core, and FIG. 2 is a diagram showing the vicinity of the damper in Example 1. FIG. 3 is a partially cutaway side view showing the vicinity of the damper in Embodiment 2,
Figure 4 (A> is a plan view showing an example of the arrangement of ducts from the front section to the rear seat side, and Figure 4 (B) is a side view of the same. 1... Duct, 2... Introduction Mouth 10... Evaporator 16... Damper

Claims (1)

[Claims] 1) In an air conditioner configured to blow conditioned air from an air conditioning unit installed at the front of a car toward the rear seats, one end is connected immediately after the heat exchange core and the other end is connected to the rear seat side. An air conditioner for a rear seat of an automobile, comprising: a duct guided into the duct, an inlet provided in the duct for introducing indoor air into the duct, and a damper for adjusting the opening/closing degree of the inlet. Device.