JPH028806Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to an air conditioner for an automobile having a cool box that cools stored items using air-conditioned air.

(Prior Art) Some automobiles have a structure in which air-conditioning air is passed through a cool box provided inside the vehicle to cool items stored in the cool box. One example is a storage box for automobiles disclosed in Japanese Utility Model Application Publication No. 59-62056.

FIG. 6 shows an example of an air conditioner having such a cool box, in which the blower motor 52
The air sucked in through the air pillow fire 51 is sent toward the evaporator 53. This air is cooled in the evaporator 53 and then sent into the cool box 54 to cool the inside of the cool box 54. A part of the air is sent into the vehicle interior from the outlet 54a, and the remaining air is sent to the bottom of the cool box 54. The air is sent into the vehicle interior from the opening 54b through the air outlets 55a and 55b. In this way, the Cool Box is designed to use the air conditioning air inside the vehicle to cool the vehicle, and the cold air that has passed through the Cool Box is blown into the vehicle interior to cool the interior of the vehicle. This is inconvenient, for example, when you want to cool the inside of the Cool Box in the winter but do not want to let cold air into the passenger compartment, or conversely, when you want to cool only the passenger compartment without using the Cool Box.

(Purpose of the invention) In view of the above-mentioned problems, it is an object of the present invention to provide an air conditioner for an automobile in which the flow path of air conditioning air can be freely switched.

(Structure of the invention) The air conditioner of the invention allows air sent by a blower motor to flow through an evaporator into a cool box, and a first branch part that branches to a first outlet provided in a passenger compartment is connected to the evaporator. The air from the evaporator can be selectively sent to either the cool box or the first outlet by means of a first shutter valve provided at the first branch. A duct having a second branch part is provided on the downstream side of the Cool Box to communicate the Cool Box with the second air outlet provided in the passenger compartment and the third air outlet provided in the trunk room. It is characterized in that air from the cool box can be selectively sent to either the second or third outlet by means of a second shutter valve provided at the branching portion.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram schematically showing an air conditioner according to an embodiment of the present invention. This device basically consists of an air pillbox 2 for purifying intake air, a blower motor 3 for blowing air, and a blower motor 3 for air cooling. Evaporator 4, cool box 8 and air passage duct 1,
It consists of 7 and 11. An opening 1 is provided in the first duct 1 having an opening 1a opening into the vehicle compartment 21.
An air pillow fire 2, a blower motor 3, and an evaporator 4 are arranged in order from the one closest to a. be done. The first duct 1 branches at a first branch 5 and communicates with a cool box 8 and a second duct 7. At this time, a swingable first shutter valve 6 is disposed in the first branch 5, and the swing of the first shutter valve 6 establishes communication between the first duct 1 and the cool box 8. Also, communication between the first duct 1 and the second duct 7 can be controlled. 1st
The shutter valve 6 can take three positions as shown by a solid line, a dotted line, and a one-dot chain line in the figure.
At the position indicated by the solid line, all the air from the first duct 1 is sent to the second duct 7, at the position indicated by the broken line, all the air from the first duct 1 is sent to the cool box 8, and at the position indicated by the one-dot chain line, all the air from the first duct 1 is sent to the second duct 7. Air from duct 1 is sent out separately to second duct 7 and cool box 8. The second duct 7 branches into two, and each tip opens into the vehicle compartment 21 to form first air outlets 7a and 7b.

On the other hand, in the cool box 8, the exit passage 8a is the second
It is connected to the branch part 9 and communicates with a third duct 11 branching from the second branch part 9. This third duct 11 includes a second air outlet 11a that opens into the passenger compartment 21 and a third air outlet 11b that opens into the trunk room 22.
The air from the outlet passage 8a of the cool box 8 is directed to the second or third outlet 1 according to the swinging of the second shutter valve 9 disposed in the second branch 9.
1a and 11b.

The operation of the air conditioner having the above configuration will be explained with reference to FIGS. 2 to 4.

FIG. 2 shows a case where the communication between the first duct 1 and the cool box 8 is closed by the first shutter valve 6, and in this case, the air is sucked in by the blower motor 3 from the opening 1a through the air pillbox 2. After the air is cooled by the evaporator 4, it is sent into the second duct 7, and is blown out into the vehicle interior 21 from the first blow-off ports 7a, 7b. Thereby, only the vehicle interior 21 can be cooled, and therefore, when the cool box 8 is not required, the vehicle interior can be efficiently cooled.

FIG. 3 shows that the first shutter valve 6
The communication between the duct 1 and the second duct 7 is closed, and the second duct 7 is closed.
A case is shown in which the communication between the outlet passage 8a of the cool box 8 and the second air outlet 11a is closed by the shutter valve 10, and in this case, all the air from the first duct 1 is introduced into the cool box 8 and the cool box 8 is closed. After the inside of the air 8 is cooled, it is blown out into the trunk room 22 from the second air outlet 11a. For this reason, it is not necessary to cool the inside of the vehicle compartment 21 as in the winter, but the cool box 8
is effective when cooling is desired.

In FIG. 4, the first shutter valve 6 is in the position shown by the dashed line in FIG. 1, and the second shutter valve 10 closes the communication between the outlet passage 8a of the cool box 8 and the third outlet 11b. In this case, the air from the first duct 1 is transferred to the second duct.
It is divided and guided into a duct 7 and a cool box 8. Therefore, the cabin 21 can be cooled with the air from the second blow-off ports 7a, 7b, and the inside of the cool box 8 can be cooled at the same time.
Note that the air that cooled the cool box 8 is
The air is blown out from the air outlet 11a to cool the vehicle interior 21, but at this time, the second shutter valve 10 can also be operated to cool the trunk room 22.

FIG. 5 shows that not only a first opening 1a opening to the vehicle interior 21 but also a second opening 1b opening to the trunk room 22 are formed at the tip of the first duct 1. 3rd shutter valve 1
An example is shown in which either the intake air from the vehicle compartment 21 or the intake air from the trunk room 22 can be selected by c. By doing this,
When cooling the vehicle interior 21, the air inside the vehicle interior 21 is sucked in through the first opening 1a, and when cooling the trunk compartment 22, air inside the trunk compartment 22 is blown through the second opening 1b. By doing so, cooling efficiency can be improved.

(Effects of the invention) As explained above, according to the invention, the flow path of air conditioning air can be freely switched by operating the shutter valve, so it is possible to cool only the cool box, only the passenger compartment, or both. You can freely select the type of cooling for the trunk, and it is also possible to cool the trunk.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram showing one embodiment of the air conditioner according to the present invention, Figures 2 to 4 are schematic diagrams showing the operation of the air conditioner in Figure 1, and Figure 5 is the air conditioner according to the present invention. FIG. 6 is a schematic diagram showing an example of a conventional air conditioner. 2... Air pillbox, 3... Blower motor, 4... Evaporator, 5... First branch,
6...First shutter valve, 8...Cool box, 9...Second branch, 10...Second shutter valve.

Claims (1)

[Claims for Utility Model Registration] In an air conditioner for an automobile, in which an evaporator is provided downstream of a blower motor, and a cool box is provided downstream of the evaporator, a duct connecting the evaporator and the cool box is connected to the air conditioner for the automobile. A first branch part communicating with a first outlet provided in the chamber is formed, and air from the evaporator is selectively sent to either the cool box or the first outlet. A duct is provided downstream of the cool box, the duct having a second branch portion connected to a second air outlet provided in the passenger compartment and a third air outlet provided in the trunk room. , an automobile characterized in that the second branch part is provided with a second shutter valve that selectively sends air from the cool box to either the second outlet or the third outlet. air conditioner.