JPH0428806Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to improvement of a vehicle air conditioner.

[Prior Art] As a conventional vehicle air conditioner, as devised in Japanese Utility Model Application Publication No. 147745/1983 shown in FIG.
The blowers B and C on both sides were driven by the main blower motor A, and separate suction ducts F and G were communicated with each of the blowers B and C from one outside air intake port D and one inside air intake port E, respectively. structure has been proposed.

The device proposed in Japanese Utility Model Application Publication No. 49-147745 shown in the above-mentioned Fig. 4 has difficulty in obtaining a large air volume despite its large structure, and the blower capacity cannot be fully demonstrated.
In particular, there is also the problem that the two blowers cannot be adjusted separately.

Furthermore, as shown in Japanese Patent Application Laid-Open No. 58-204997, a blower with two separate motors has been proposed, but since one blower motor is located in the center of the impeller of the other blower, There is a problem in that the incoming air and the blower motor interfere with each other, resulting in a decrease in the amount of air blown out from the blower fan.

[Problems to be solved by the invention] In view of the current state of the conventional devices mentioned above, the present invention can achieve a large air volume air conditioning mode with a relatively simple structure.
The noise level is relatively low, and the rotational speed of the left and right blowers can be adjusted separately, making it possible to support a variety of air conditioning modes. An object of the present invention is to provide a vehicle air conditioner that can increase the degree of freedom in the design of air conditioner installation in a vehicle.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention has an outside air inlet in the center of one inside/outside air switching box that switches intake air to outside air. It is opened in communication with the outside air intake, and one inside air intake is opened facing the dash panel, and blowers with separate motors are installed on each side of the left and right sides of the inside and outside air switching box in the vehicle width direction. The motor portion of the blower is disposed outside the blower case in the vehicle width direction.

[Function] Since the present invention has the above-mentioned configuration, one outside air inlet and one inside air inlet are provided in the center of one inside/outside air switching box, and it is possible to switch between inside and outside air. Since one damper is sufficient for the vehicle, and separate blowers with motors are installed on both sides of the inside/outside air switching box in the vehicle direction, the length of the air conditioner in the vehicle longitudinal direction can be shortened, and the structure can be reduced. is relatively simple, and even if the outside air intake in the body cowl is widened, only one intake is required, so a large air volume can be obtained without affecting the rigidity of the body. The inlet is opened at a portion of the switching box facing the dash panel and can be opened at a position relatively distant from the blower, so that even if the opening area is wide, leakage of noise into the passenger compartment can be relatively reduced.

In addition, the blowers with motors on both the left and right sides of the inside/outside air switching box can be adjusted separately, so the rotation speed can be set to suit various air conditioning modes. Because of this arrangement, the inside/outside air switching box can have a large internal volume.

[Embodiment] FIGS. 1 and 2 show an embodiment of an air conditioner according to the present invention.

In these figures, numeral 1 indicates cowl top 2.
A body cowl 3 is provided below the louver 1 and extends in the vehicle width direction, and a dash panel 4 is located below the body cowl 3.
The air conditioner is installed opposite these. In addition, the code|symbol 5 is a windshield.

The air conditioner is equipped with an inside/outside air switching box 6, which has the shape of a cylinder cut horizontally into four equal parts along its axial direction, and its top wall 7 is Outside air intake 8 provided in the body cowl 3
An outside air introduction port 9 is provided at the center of the inside/outside air switching box 6, which is connected to the periphery of the outside air intake port 8 and faces the outside air intake port 8. In addition, an inside air inlet 11 is provided in the lower wall 10 of the central part of the inside/outside air switching box 6.
Round holes 16 are provided in the left and right end walls 12 and 13, respectively, for communication with motorized blowers 14 and 15. Inside and outside air switching box 6 are upper and lower walls 7,
A damper 18 having a rotation shaft 17 is installed at the boundary of the damper 10 .

Therefore, the outside air X coming from the louver 1 of the cowl top 2 and the inside air Y inside the vehicle interior flow into the inside/outside air switching box 6 through the rotation of the damper 18, either alternatively or in part. We will be heading towards the 16th.

The end walls 12, 13 of the inside/outside air switching box 6 are located on the left and right sides in the vehicle width direction.
Blower 1 with motor is installed in the position opposite to 3.
4 and 15 are installed, and the air suction port 1 of each blower is installed.
9 and 20 are opposed to the round holes 16 in the end walls 12 and 13. As a result, the motorized blower 14,
15 and the inner cavity of the inside/outside air switching box 6 communicate with each other. The motor portion 14M of the motorized blower 14, 15,
15M is disposed outside the blower cases 14C and 15C in the vehicle width direction. Blower with motor 14,
An evaporator 21 and a heater 22 are located behind the evaporator 15 and the inside/outside air switching box 6, and the front part of the housing 23 surrounding these is a blower 1 with a motor.
It extends to the air outlet ports 24 and 25 of Nos. 4 and 15. Reference numerals 26 and 27 are partition walls for dividing the wind from the blowers 14 and 15 into left and right halves and guiding them to the evaporator 21, and constitute a part of the housing 23.

A duct 28 is installed at the top of the housing 23 to guide wind toward the center register.
Ducts 29 and 30 are also installed to guide wind toward the left and right side registers, and ducts 3 are installed at the bottom of the housing 23 to guide wind toward the rear seats.
1 is installed.

Therefore, the wind from the left motorized blower 14 is directed from the center of the center register to the left side and the left side register, and the wind from the left motorized blower 15 is directed to the opposite right side.

Note that in FIG. 2, the reference numeral 32 divides the air passing through the evaporator 21 into those directed directly toward the duct 28 and those directed toward the duct 28 after passing through the heater 22. This is a damper for switching between the two directions.

Therefore, each motorized blower 14,
When the 15 rotation speeds are set to be different from each other, the air volume corresponding to each rotation speed is applied to the evaporator 2.
Therefore, different amounts of air will hit the occupants in the right seat and the occupant in the left seat, respectively.

FIG. 3 shows a different embodiment of the present invention, in which the evaporators 35, 36 are also divided into two parts corresponding to the respective motorized blowers 37, 38. Each evaporator is tilted outward in the horizontal direction so that the air intake port of each evaporator 35, 36 can substantially directly face the outlet port 39, 40 of the motorized blower 37, 38. It is the same as that shown in FIG.

Therefore, the wind from the motorized blowers 37 and 38 reaches the heater 41, compared to the case of the above embodiment.
This results in less resistance and smoother flow.

[Effects] The present invention has the configuration and operation described above, and it is sufficient to form one outside air inlet and one inside air inlet in one inside and outside air switching box, and the structure is comparable. The design is simple, and two motorized blowers are installed, and the motor part of the blower is placed on the outside of the blower case in the vehicle width direction, making it possible to increase the internal capacity of the inside/outside air switching box. This allows for air conditioning with a large amount of air, and the air conditioning mode has the advantage of being able to be set in a variety of ways by separately adjusting the rotational speed of the two motorized blowers.

In addition, the inside air intake port is located in the center of the inside/outside air switching box, facing the needle panel.
Coupled with the fact that the motorized blowers are placed on both the left and right sides of the inside/outside air switching box in the vehicle width direction, this also has the effect of effectively preventing blower noise from directly propagating from the inside air inlet to the driver's seat side. ing.

Furthermore, by installing blowers with motors on both the left and right sides of the vehicle width direction of the inside/outside air switching box, the length of the air conditioner in the longitudinal direction of the vehicle is shortened, allowing greater flexibility in the design of installing the air conditioner below the instrument panel. It also has the effect of increasing the

[Brief explanation of the drawing]

1 and 2 show one embodiment of the present invention, FIG. 1 is a horizontal sectional view thereof, which corresponds to the - line cross section in FIG. 2, and FIG. 2 is a - line sectional view in FIG. 1. and FIG. 3 shows the first example of another embodiment.
A sectional view similar to the one shown in the figure, and FIG. 4 is a layout diagram of a conventional device. 3...Body cowl, 4...Dasshu panel,
6...Internal and external air switching box, 8...Outside air intake, 9...
Outside air inlet, 11... Inner air inlet, 14, 15...
...Blower with motor, 14C, 15C...Blower case, 14M, 15M...Motor part.

Claims (1)

[Scope of utility model registration request] One inside air inlet is opened in the center of one inside/outside air switching box that switches the intake air to inside and outside air and communicates with the outside air intake of the body cowl, and one inside air inlet faces the needle panel. A blower with a separate motor is installed on each side of the left and right sides of the inside/outside air switching box in the vehicle width direction, and the motor part of the blower is installed on the outside of the blower case in the vehicle width direction. Vehicle air conditioning system.