JPS5915689Y2 - Vehicle air conditioner - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an on-vehicle air conditioner installed in a vehicle such as an automobile.

Conventionally, in-vehicle air conditioner cooling systems have generally been equipped with an inside/outside air switching damper to enable selection between an inside air type that circulates the air inside the car for cooling, and an outside air type that cools the car by introducing outside air. For normal cooling, the internal air type is used to increase the cooling effect, while the outside air type is used when the outside temperature is not very high and the cooling load is small, or when cooling is performed by freshening the air inside the car.

Since cooling is performed by switching between inside and outside air,
Conventionally, temperature control inside the vehicle has been performed by sensing the temperature of the blown air. Therefore, the correlation between the temperature of the blown air and the temperature inside the vehicle varies depending on the frosting condition of the cooler and the setting of the air flow rate. There was a problem in that it was difficult to adjust the temperature to a comfortable temperature desired by the user.

This idea was created to solve the above-mentioned problem, and by constantly sensing the temperature inside the car and controlling the cooling system, it is possible to easily and accurately obtain the comfortable temperature inside the car that the user desires. The purpose is to do so.

An embodiment of this invention will be described below with reference to the drawings.

In FIG. 1, 1 is a unit cooling device,
This cooling device 1 has a refrigeration cycle cooler 3 housed in a box 2.

The box body 2 includes an in-vehicle intake port 4 for sucking air inside the vehicle;
An outside suction port 5 that takes in air from outside the vehicle and an outlet 6 that blows out cold air that has been heat-exchanged through the cooler 3 by a blower (not shown) are provided.

Reference numeral 7 denotes an inside/outside air switching damper for switching intake of air inside the vehicle and air outside the vehicle, and a part of this switching damper 7 includes:
As also shown in FIG. 2, a cutout 8 is provided.

Reference numeral 9 denotes a controller for temperature control, and a resistance element 10 such as a thermistor for sending a signal to this controller 9 via a lead wire 11 is supported by the box body 2, and this resistance element 10 is inserted into the notch 8. The notch 8 is arranged at a required position so as to be exposed.

With the structure described above, when the inside/outside air switching damper 7 is set to the inside air side at the position A in FIG. It is possible to sense the temperature inside the vehicle and send a signal to the controller 9.

In addition, when the inside/outside air switching damper 7 is set to the outside air side in position B in FIG. A small amount of the air inside the vehicle is sucked in through the notch 8 of the damper 7, and the temperature sensing portion of the resistance element 10 can accurately sense the temperature inside the vehicle and send a signal to the controller 9.

As explained above, according to this invention, the resistance element 10 can sense the temperature inside the car regardless of whether the air conditioner is an inside air type or an outside air type. It is possible to easily and accurately obtain the comfortable temperature inside the vehicle that the driver and other users desire.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a cooling device for a vehicle-mounted air conditioner according to an embodiment of the invention, and FIG. 2 is a perspective view showing an inside/outside air switching damper of the same. 1... Cooling device, 2... Box body, 4...
...Car interior intake port, 5...Outside air intake port, 7.
...Inside/outside air switching damper, 8...Notch, 9
...Controller, 10...Resistance element.

Claims (1)

[Scope of utility model registration request] A notch 8 is provided in a part of the inside/outside air switching damper 7, which is provided in the cooling device 1 to switch and introduce inside air and outside air, to allow some inside air to be sucked into the cooling device 1 even when outside air is introduced, for temperature control. The resistor element 10 of the controller 9 is inserted into the notch 8.
An in-vehicle air conditioner characterized by being installed facing the air conditioner.