JPH09323527A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the air duct length and miniaturize the whole air conditioner by arranging an evaporator and a blower in the flowing direction of air, and providing an intake control damper means for controlling the suction of inside and outside airs on the air inflow side of the evaporator. SOLUTION: Within an air duct 21 formed by a duct 22 of an air conditioner, a multiple pipe type evaporator 23 and a blower 24 are arranged. The evaporator 23 has two surfaces 23a, 23b on air inflow side as air sucking surfaces and one surface 23c on air outflow side as exhaust surface, and a intake control damper means 25 for controlling the suction of inside and outside airs is provided on the air sucking surfaces 23a, 23b. The intake control damper means 25 is formed of a film damper, which has a film 26 laid over the air sucking surfaces 23a, 23b so that it can be wound in either one direction to move and regulate the position of a film opening part 27, whereby the ratio of inside and outside airs is regulated according to the position of the opening part 27. A heater core 28 is arranged on the downstream side of the blower 24, and an air mix damper 29 is provided in the just upstream position of the heater core 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an air conditioner, and more particularly to a structure of an air conditioner which is downsized.

[0002]

2. Description of the Related Art A conventional air conditioner, particularly a vehicle air conditioner, is arranged as shown in FIG. In FIG. 4, reference numeral 1 denotes an air passage defined by the duct 2. A blower 3, an evaporator 4, and a heater core 5 are arranged in the air passage 1 from the upstream side, and an air mix damper 6 is provided immediately upstream of the heater core 5. The intake port 7 is provided with an intake control damper 8 for controlling the intake (ratio) of the inside and outside air.
The air having a controlled intake ratio is sucked by the blower 3 and is pumped downstream.

After passing through the evaporator 4, the air flowing in the air passage 1 flows through the heater core 5, bypasses the heater core 5, or mixes the two flows, depending on the adjustment position of the air mix damper 6. State, and each of the outlets 9, 10, 11 (for example, D
EF, VENT, FOOT). The blowout from each of the blowout ports 9, 10 and 11 is controlled by each of the dampers 12 and 13.

[0004]

However, in the conventional air conditioner as described above, the damper 8, the blower 3, and the evaporator 4 at the intake port 7 are arranged in series in this order in the air flow direction. Therefore, there is a limit to the reduction of the air passage length due to, for example, the space for operating the damper 8.
Therefore, there is a limit to downsizing of the entire air conditioner.

An object of the present invention is to provide a structure of an air-conditioning apparatus which can overcome the limitations of the conventional apparatus and drastically reduce the size of the entire apparatus by paying attention to the present situation.

[0006]

In order to solve the above-mentioned problems, the air conditioner of the present invention has an evaporator and a blower arranged in this order in the direction of air flow, and the inside and outside of the evaporator are connected to the air inflow side. Intake control damper means for controlling intake of air is provided.

In this air conditioner, for example, two surfaces on the air inflow side of the evaporator are used as air suction surfaces, and the intake control damper means is provided on the air suction surface, and the other one surface on the air discharge side of the evaporator is exhausted. As a surface, the blower can be connected to the exhaust surface.

In the air conditioner according to the present invention,
It is preferable that the evaporator, the blower, and the intake control damper means are configured in an integrated unit. Furthermore, it is preferable that the evaporator is a multi-tube evaporator, and by using the multi-tube evaporator, the air suction surface can be formed without being restricted by the flow direction of air. Therefore, the two air suction surfaces can be easily formed without any problem.

Further, by constructing the intake control damper means as a slide type damper, the miniaturization of the entire apparatus, which is the object of the present invention, can be achieved more easily. As the slide type damper, for example, a film damper can be used. However, it is also possible to configure the air conditioner according to the present invention with a rotary damper.

In the air conditioner according to the present invention as described above, by arranging the devices in the order of the evaporator and the blower in the air flow direction, as will be apparent from the embodiments described later, compared with the conventional device, In particular, it is possible to significantly reduce the length of the wind path. Further, since the intake control damper means is provided on the air inflow side of the evaporator having no movable part, the size can be reduced also in this part. In particular, if the intake control damper means, the evaporator, and the blower are configured as an integrated unit, the size can be greatly reduced.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of an air conditioner of the present invention will be described below with reference to the drawings. FIG. 1 shows an air conditioner according to an embodiment of the present invention, and particularly shows a case where the present invention is applied to a vehicle air conditioner.
In the figure, 21 indicates an air passage defined by a duct 22. An evaporator 23 and a blower 24 are arranged in the air passage 21 from the upstream side in the air flow direction A. The evaporator 23 is a multi-tube evaporator in which a large number of refrigerant flow pipes are arranged. In this multi-tube evaporator, the air inflow surface and the air exhaust surface can be freely set because there is substantially no restriction on the inflow and outflow directions of air.

In this embodiment, the two surfaces 23a and 23b on the air inflow side of the evaporator 23 are the air suction surfaces, and the one surface 23c on the air outflow side is the exhaust surface. Intake control damper means 25 for controlling the intake of the inside and outside air is provided on the air intake surfaces 23a and 23b. The intake control damper means 25 is composed of a film damper in this embodiment.

The intake control damper means 25 composed of a film damper has a film 26, as shown in FIGS.
Is wound over the air suction surfaces 23a and 23b, and the film opening 27 can be moved and adjusted by winding in one direction. When the film 26 is moved and adjusted so that the film opening 27 is located on the air suction surface 23a, the outside air is sucked in as shown in FIG.
When the movement is adjusted so as to come to the top, the inside air is sucked in as shown in FIG. If the opening 27 is adjusted to an intermediate position between these, the inside and outside air is sucked, and the ratio of the inside and outside air can be adjusted according to the position of the opening 27.

A heater core 28 is arranged on the downstream side of the blower 24 as in the conventional device.
An air mix damper 29 is provided at a position immediately upstream of 8. On the downstream side of the heater core 28, the blower outlets 30, 3 are provided.
1, 32 (for example, DEF, VENT, FOOT) are provided, and the blowout from the blowout ports 30, 31, 32 can be controlled by the dampers 33, 34.

In such a vehicle air conditioner, the evaporator 23 and the blower 24 are arranged in the air flow direction A so that the air inlet surface of the evaporator 23 can be directly used as the air intake surface. This makes it possible to eliminate the conventional space for the intake port and the space for operating the intake control damper, and it is possible to significantly reduce the length of the air passage.

Particularly, if a slide damper, especially a film damper, is used as the intake control damper means 25 as in the present embodiment, the space on the air intake side is greatly reduced as compared with the conventional structure shown in FIG. .

Further, if the evaporator 23 and the blower 24 are incorporated into an integrated unit, the space between the evaporator 23 and the blower 24 can be greatly reduced, and the air passage length can be further shortened. As a result, downsizing of the entire air conditioner can be realized.

Further, by making the intake control damper means 25 together with the evaporator 23 and the blower 24 into an integrated unit, further miniaturization is possible, and these devices are treated substantially as one unit device. As a result, the assemblability is greatly improved, and
Parts management in the manufacturing process of air conditioners is also greatly facilitated.

[0019]

As described above, according to the air conditioner of the present invention, the arrangement order of the respective devices is set in the order of the intake control damper means, the evaporator and the blower in the flow direction of the air so that the air passage length is increased. Can be significantly shortened, and the overall size of the air conditioner can be greatly reduced.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a perspective view of the evaporator portion of the apparatus of FIG. 1 when sucking outside air.

FIG. 3 is a perspective view of the evaporator portion of the apparatus of FIG. 1 when inhaling the inside air.

FIG. 4 is a schematic configuration diagram of a conventional air conditioner.

[Explanation of symbols]

 21 air passage 22 duct 23 evaporator 23a, 23b air intake surface 23c exhaust surface 24 blower 25 intake control damper means 26 film 27 film opening 28 heater core 29 air mix damper 30, 31, 32 blowout port 33, 34 damper

Claims (8)

[Claims] 1. An air conditioner characterized in that an evaporator and a blower are arranged in this order in a flow direction of air, and an intake control damper means for controlling intake of inside and outside air is provided on an air inflow side of the evaporator. apparatus. 2. The two surfaces of the evaporator are used as air intake surfaces and the intake control damper means is provided on the air intake surfaces, and the other surface of the evaporator is used as an exhaust surface and the blower is connected to the exhaust surfaces. The air conditioner according to claim 1. 3. The air conditioner according to claim 1, wherein the evaporator, the blower, and the intake control damper means are configured as an integrated unit. 4. The air conditioner according to claim 1, wherein the evaporator is a multi-tube evaporator. 5. The air conditioner according to claim 1, wherein the intake control damper means comprises a slide damper. 6. The air conditioner according to claim 5, wherein the slide damper comprises a film damper. 7. The air conditioner according to claim 1, wherein a heater core and an air mix damper are arranged on the downstream side of the blower. 8. The air conditioner according to claim 1, which is a vehicle air conditioner.