JPS633282Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a vehicle air conditioner, in particular, blows out full heating air from the side ventilator duct, while
The present invention relates to a vehicle air conditioner designed to blow out conditioned air from a center ventilator duct.

The vehicle has a first
As shown in the figure, air outlets 2, 3 and 4, 5 provided at the ends of ventilator ducts are provided in the center and both sides of a vehicle body panel such as the instrument panel 1, respectively. There is a type of vehicle air conditioner that allows air to flow out into the vehicle interior.A conventional example of such a vehicle air conditioner is the one shown in FIG. 2, for example. This air conditioner has an outside air intake port 11 and an inside air intake port 12.
The air intake box 8 is equipped with an internal/external air switching door 13 for selectively switching the air flowing in from these intake ports 11 and 12, and has a built-in blower 14, and an evaporator 15. A connected cooler unit 9, a heater unit 10 equipped with a heater core 17 and an air mix door 16 for adjusting the amount of air passing through the heater core 17, and a heater unit 10 connected to the heater unit 10 and branched into the center and both sides in the width direction of the vehicle body. Opening/closing doors 21, 22 and 23 are provided at the portions of the air outlets 2, 3 and 4, 5 that extend from one side to the other.
a center ventilator duct 18 comprising 24;
It consists of side ventilator ducts 19 and 20. By opening and closing the opening/closing doors 21, 22, 23, 24 at each air outlet 2, 3, 4, 5, it is possible to create an air-conditioned state according to various needs. In addition, regarding the side ventilator ducts 19 and 20, the air outlet 4
Alternatively, the air blown out from 5 can be directed toward the door window glass and used as a side window defroster. In FIG. 1, the reference numeral 6 indicates an instrument panel housing meters such as a speedometer, and the reference numeral 7 indicates an operation panel for adjusting the temperature, air volume, etc. of the air conditioner.

However, in such a conventional air conditioner, when the side ventilator is used as a side window defroster while heating the vehicle interior, full heating air is sent from the heater unit 10 to each ventilator duct 18. ,19,2
0, the air outlet 2 and 3 in the center part
A large amount of air having the same temperature as that at the side air outlets 4 and 5 is blown out at high speed. For this reason, when used as a side window defroster as described above, occupants were exposed to relatively high temperature wind, causing problems such as their heads rising (see Japanese Utility Model Application Publication No. 57-67814). .

The present invention was developed by focusing on these conventional problems, and its purpose is to ensure that normal conditioned air is blown out from the center ventilator even when the side ventilator is used as a side window defroster. The object of the present invention is to solve the above-mentioned conventional problems by providing an air conditioner according to the present invention.

The present invention connects the upstream part of the heater core of an air conditioner and the center ventilator duct by a bypass duct, and even when full heating air is blowing out from the side ventilator duct, the air from the center ventilator duct is connected to the center ventilator duct. The gist of this is that the conditioned air that has passed through the bypass duct is allowed to flow out. If an opening/closing door is installed at the connection between the bypass duct and the center ventilator duct, the amount of air flowing through the bypass duct can be adjusted by operating the opening/closing door.
Temperature control in the center ventilator duct becomes possible. As a result, warm air can be blown out from the side ventilator ducts, and conditioned air can be blown out from the center ventilator duct with varying degrees of strength, making it possible to air-condition the vehicle interior well.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 3 and 4 are diagrams showing an embodiment of the present invention. In the vehicle air conditioner according to this embodiment, the heater core 17 of the heater unit 10 is
An opening 26 is provided in the upstream part of the center ventilator duct 18, and an opening 27 is provided in the center ventilator duct 18, and these openings 26 and 27 are connected to the bypass duct 2.
5. An opening/closing door 28 supported by a shaft 31 is rotatably attached near the opening 27 at the base end of the center ventilator duct 18. As shown in FIG. 4, this opening/closing door 28 has one end of a lever 32 for operation attached to the end of a shaft 31, and one end of a wire 34 is connected to a pin 33 at the other end of this lever 32. The other end of the wire 34 is connected and fixed to the operating arm 35. The operating arm 35 is
It is connected to an operating knob 36 that slides along a slide groove 37 formed on the operating panel 7, and by sliding the operating knob 36 left and right, the opening/closing door 28 is rotated, and the opening 27 is opened and closed. I can do it.

In the vehicle air conditioner having such a configuration, when performing normal vehicle interior air conditioning, various knobs attached to the operation panel 7 are operated to operate the evaporator 15 and heater core 17 appropriately, and the blower 14 is operated. While sending air, the opening/closing door 28
The opening 27 is closed by. As a result, conditioned air flows from the heater unit 10 to the center ventilator duct 18 and to the side ventilator duct 1.
9, 20, each air outlet 2,
Conditioned air of approximately the same temperature flows out from 3, 4, and 5, and air-conditions the vehicle interior. On the other hand, when using the side ventilator as a side window defroster, the temperature control knob is operated to bring it into a full heating state, and the operating knob 36 is operated to rotate the opening/closing door 28 to open the opening 27. As a result, the full heating air from the heater unit 10 is prevented from flowing to the center ventilator duct 18, flows to the side ventilator ducts 19 and 20, and flows out from the air outlets 4 and 5 on both sides. On the other hand, the conditioned air that has flowed into the bypass duct 25 at the upstream position of the heater core 17 flows into the center ventilator duct 18 through the opening 27, and cool air or moderately warm air flows from the air outlets 2 and 3 in the center part. Matsuta conditioned air flows out.
Therefore, in this embodiment, the vehicle interior can be air-conditioned while discharging warm air as a side window defroster. Note that during this operation, the temperature of the conditioned air flowing out from the air outlets 2 and 3 can be adjusted by varying the degree of opening of the opening/closing door 28. And the center ventilator duct 18 is opened and closed by the opening/closing door 28.
Once completely closed, only the air that has passed through the bypass duct 25 is sent to the center ventilator duct 18, and cold air,
Alternatively, only outside air can be blown out.

As explained above, according to the present invention, a bypass duct is connected between the upstream part of the heater core of an air conditioner and the center ventilator duct, and even during full heating operation, cold air is passed through the bypass duct to the center ventilator duct. As a side window defroster, it is possible to blow out warm air from the air outlets on both sides, while blowing out conditioned air at an appropriate temperature from the air outlet in the center, and while the defroster is in operation, There is no longer any fear that the head of the driver or other occupants will become dizzy. Therefore, the effect is obtained that the occupants in the vehicle can always enjoy driving etc. in a comfortable condition.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an instrument panel section of a vehicle equipped with an air conditioner, Fig. 2 is a sectional view showing a conventional example of a vehicle air conditioner, and Fig. 3 is a diagram showing an embodiment of the present invention. FIG. 4 is a cross-sectional view showing the structure of the vehicle air conditioner, and FIG. 4 is a perspective view of essential parts showing the opening/closing door operating mechanism in the above embodiment. 1...Instrument panel, 2, 3, 4,
5...Air outlet, 7...Operation panel, 8...Air intake box, 9...Cooler unit, 10...Heater unit, 14...Blower,
17... Heater core, 18... Center ventilator duct, 19, 20... Side ventilator duct, 25... Bypass duct.

Claims (1)

[Scope of utility model registration request] An air intake box having an air intake box equipped with a blower, a heater unit having a built-in heater core and connected to the air intake box, and a ventilator duct connected to the heater unit and branching to both sides and the center of the vehicle. An air conditioner for a vehicle, characterized in that in the conditioner, a bypass duct is connected between the upstream side of the heater core and the center ventilator duct so that air from the air intake box can be directly supplied and blown out to the center ventilator duct. Device.