JPH0127937Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the structure of an automobile indoor air conditioner using a defroster.

[Prior Art] Air is blown into the cabin of an automobile from a register and a defroster. Of these, registers are provided for air conditioning in the vehicle interior, and usually have a center register 1, left and right side registers 2, as shown in Figure 6.
However, the wind from these registers 1 and 2 has a limited length in the passenger compartment width direction of the outlet.
It is difficult to spread it throughout the vehicle interior. Also,
The defroster 3 sends out air to remove fog from the windshield, and its outlet has a large length in the width direction of the vehicle interior, allowing it to emit air with a wide distribution.
The conventional defroster 3 can blow air only to the front window 4, and is not suitable for air conditioning.

In connection with the present invention, as a structure for simplifying the duct to the defroster and the duct to the register in the instrument panel, Japanese Utility Model Application Publication No. 182512/1986 describes a structure in which both the above ducts are connected in the instrument panel. A structure has been proposed in which the duct is formed as a common duct and fluidics are used to control the flow of air to each outlet.

However, with this proposed structure, although it is possible to simplify the duct structure inside the instrument panel, the air outlet of the register remains the same as conventional ones, and therefore, the air conditioned air from the register to the passenger compartment is When sending it, the problem remains that it is difficult to spread it throughout the vehicle interior.

In addition, the fluidics mechanism that switches the wind direction is only provided on one side of the air passage, so when the fluidics mechanism is activated, it is possible to reliably direct the wind direction to a predetermined direction. When controlling the other wind direction, the fluidics mechanism is turned off, so there is little certainty in controlling the wind direction, and in some cases, the wind is dispersed between the defroster side and the register side. There is also the problem.

Furthermore, in the general structure shown in FIG. 6 and the structure shown in the above-mentioned Japanese Utility Model Publication No. 182512/1983, it is necessary to provide a plurality of register air outlets on the front side of the instrument panel. However, since these air outlets occupy a considerable area, there is an inherent problem in that they take up space for installing other equipment.

[Problems to be solved by the invention] The purpose of the invention is to provide an automobile interior air conditioning system that can blow air with a wide distribution throughout the vehicle interior, and moreover, it It is an object of the present invention to provide a device structure that achieves this without changing the appearance of the front window side by utilizing the above, and also enables the elimination or significant reduction of the register air outlet on the front side of the instrument panel.

[Means for Solving the Problems] The automotive indoor air conditioner of the present invention that meets this objective has a defroster outlet that sends air toward the windshield, and a register outlet that sends air toward the interior of the vehicle. is configured as a common air outlet on the upper surface side of the instrument panel, and at least an inner wall surface of the common air outlet on the passenger compartment side is formed into a curved surface that is curved in a convex shape and continues to the upper surface of the instrument panel. , a nozzle for restricting the mainstream flow is provided on the upstream side of the air outlet, and a nozzle is provided upstream of the nozzle through passages at positions on both sides of the compartment side and the opposite side between the nozzle and the air outlet. A controlled flow outlet is provided on the side and a controlled flow control mechanism is provided for opening only one of the passages.

[Function] In the automobile indoor air conditioner configured as described above, a defroster is also used as the vehicle interior air conditioner in place of the conventional resistor. When the common air outlet is used as a defroster air outlet, the air is blown towards the windshield, and when it is used as a register air outlet, air is blown out onto the curved surface on the cabin side that forms the air outlet. Wind is blown along the instrument panel, and the wind is sent toward the interior of the vehicle along the upper surface of the instrument panel. Therefore, with regard to blowing air into the vehicle interior, by using a wide outlet for the defroster, the air that is blown can be spread widely within the vehicle interior. In addition, due to this ventilation,
The air outlet for the register on the front side of the instrument panel becomes unnecessary or can be significantly reduced.

The above-mentioned switching of the wind direction means that the direction of the wind that is narrowed by the nozzle and the flow velocity is increased is in front of the outlet,
This is done by controlling the flow from the controlled flow outlet. Since the controlled flow outlets are provided on both sides of the vehicle interior and on the opposite side, the controlled flow is always blown out from either one of the controlled flow outlets, and the wind direction is reliably oriented in a desired direction. Then, the wind directed toward the curved surface on the vehicle interior side of the common air outlet becomes a wall flow along the curved surface, and as described above, flows along the curved surface and the top surface of the instrument panel and enters the vehicle interior. is sent.

[Embodiments] Hereinafter, preferred embodiments of the automotive indoor air conditioner of the present invention will be described with reference to the drawings.

1 to 5 show an embodiment of the present invention. FIG. 1 shows the state of the interior of a vehicle, and the defroster 10 is provided on the upper surface side of an instrument panel 12 below a windshield 11 in an upwardly open state. FIG. 2 shows a part of the vicinity of the defroster 10 in cross section.
A wind direction control device 13 is installed at the outlet of the defroster 10.
is provided, and the wind direction control device 13 switches the blowing wind between the direction toward the windshield 11 and the direction toward the interior of the vehicle.

In this embodiment, the wind direction control device 13 is composed of a fluid element. As shown in FIGS. 3 to 5, the fluid element includes a nozzle 14 that restricts the flow of the mainstream, and a smoothly curved guide wall 15 provided downstream of the nozzle 14 that gradually expands the width of the mainstream passage. ,16 and
a pair of controlled flow outlets 17 provided on both sides of the nozzle 14 that can blow out the controlled flow into the nozzle 14;
18, a pair of control flow passages 20, 21 that connect the control flow outlets 17, 18 to the main flow passage 19 upstream of the control flow outlets 17, 18, and a control flow passage 2.
Control flow control mechanisms 22 and 23 are provided at the main flow passages 0 and 21 to open and close the control flow passages and turn on and off the inflow of the flow from the upstream main flow passage 19.
The control mechanisms 22 and 23 are integrated and the operating rod 2
4 to the left and right in FIGS. 4 and 5, the control flow passages 20 and 21 are opened and closed. 25 is a duct connected to the upstream side of the fluid element.

Next, the operation of the embodiment apparatus configured as described above will be explained.

First, when the control rod 24 is operated to bring the control flow control mechanisms 22 and 23 to the position shown in FIG. 4, the control flow passage 20 is closed and the control flow passage 21 is opened. As a result, the flow from the upstream mainstream passage 19 to the control flow passage 20 is blocked, and the control flow does not flow out from the control flow outlet 17 into the nozzle 14 .
However, the upstream mainstream passage 19 to the control flow passage 21
Since the flow flows into the nozzle 14 from the controlled flow outlet 18, the controlled flow flows out into the nozzle 14. At this time,
The main flow passing through the nozzle 14 adheres to the guide wall 15 on the side of the controlled flow outlet 17 due to the Coanda effect and flows along the guide wall 15. Therefore, the main flow flows toward the windshield 11 and the windshield 11
At this time, the fog on the windshield 11 is removed.

Next, when the control rod 24 is actuated to bring the control flow control mechanisms 22 and 23 to the position shown in FIG. 5, the control flow passage 20 is opened and the control flow passage 21 is closed. As a result, the flow from the upstream mainstream passage 19 to the control flow passage 21 is blocked, and the control flow does not flow out from the control flow outlet 18 into the nozzle 14 . However, since the flow flows into the controlled flow passage 20 from the upstream mainstream passage 19, the controlled flow outlet 17
A controlled flow flows out into the nozzle 14. At this time, the main flow passing through the nozzle 14 is caused by the Coanda effect through the convexly curved guide wall 16 on the controlled flow outlet 18 side.
and flows along the guide wall 16. Therefore, the main flow flows along the guide wall 16 and the upper surface of the instrument panel 12, and then flows out into the vehicle interior. Since the defroster 10 extends longer than a conventional resistor in the width direction of the vehicle interior, the air flowing out from the defroster 10 spreads widely into the vehicle interior, and the wind is distributed throughout the interior of the vehicle.

In addition, the airflow direction can be switched between the defroster 10 side and the passenger compartment side through the controlled flow outlet 17.
This is carried out by the blowout control flow from 18, and always
Since either one of the control flows controls the direction of the main flow, the sent wind is also reliably directed in a predetermined direction.

Furthermore, the control flow control mechanism 22 in this embodiment,
Since 23 may be a simple damper type slide valve, the structure is extremely simple and the number of parts can be reduced compared to, for example, a valve body and electromagnetic valve structure as shown in Japanese Utility Model Application No. 57-182512.

[Effects of the invention] As explained above, when using the automotive interior air conditioner of the invention, the defroster outlet and the register outlet are shared, so that it can be widely used to supply temperature-controlled air into the vehicle interior. It becomes possible to pass it. In addition, there is no need to install anything after the exit of this common air outlet, and the wind is directed indoors along the curved guide wall of the air outlet and the top surface of the instrument panel. To do so without changing the appearance of the upper surface of the panel and not obstructing the view, and furthermore, it is possible to eliminate or significantly reduce the conventional register on the front side of the instrument panel to provide extra space.

Furthermore, for switching and controlling the wind direction, control flow outlets are provided on both sides of the passenger compartment and the opposite side.
Since the control flow is always applied from either side, the direction of the wind can be reliably controlled in the desired direction.

[Brief explanation of the drawing]

FIG. 1 is a schematic cross-sectional view of the front part of a car, FIG. 2 is a perspective view of an indoor air conditioner for an automobile according to an embodiment of the present invention, and FIG. 3 is an enlarged cutaway perspective view of the device shown in FIG. Figure 4 is a cross-sectional view of the device shown in Figure 2 in a state where air is being sent out toward the windshield, Figure 5 is a cross-sectional view of the device shown in Figure 2 in a state where air is being sent out in the direction of the passenger compartment, FIG. 6 is a front perspective view of the interior of the vehicle including a conventional defroster and register. 10...Defroster, 11...Windshield, 12...Instrument panel, 13...
Wind direction control device, 14... Nozzle, 15, 16...
Curved guide wall, 17, 18... control port, 20,
21... Control flow path, 22, 23... Control flow control mechanism, 25... Duct.

Claims (1)

[Scope of utility model registration request] The defroster outlet that sends air toward the windshield and the register outlet that sends air toward the interior of the vehicle are configured as a common outlet on the top side of the instrument panel. At least the inner wall surface on the passenger compartment side is curved in a convex shape to form a curved surface that continues to the upper surface of the instrument panel, and a nozzle for narrowing the mainstream flow is provided upstream of the blower outlet, and the nozzle and the blower Control flow outlets that can communicate with the upstream side of the nozzle via passages are provided at positions on both sides of the compartment side and the opposite side thereof between the outlets, and for each passage, one of the controlled flow outlets is provided. An indoor air conditioner for an automobile characterized by being provided with a controlled flow control mechanism that opens only a passage.