JP3852315B2 - Air conditioner for vehicles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to the structure of a foot outlet of a vehicle air conditioner.
[0002]
[Prior art]
In conventional heating, there is a foot outlet of a vehicle air conditioner that blows warm air so that the atmosphere temperature distribution in the entire lower limb is uniform in order to quickly raise the ambient temperature of the lower limb from the viewpoint of cold head heat. It was. There was also a foot outlet of a vehicle air conditioner that tried to raise the temperature of each part of the lower limb by directly applying warm air to each part (shin, ankle, instep, toe, etc.) of the lower limb.
[0003]
[Problems to be solved by the invention]
However, in such a conventional technique, when trying to raise the ambient temperature of the lower limbs, the respective parts of the lower limbs themselves are not warmed, and an immediate warm feeling cannot be obtained. On the other hand, if hot air is directly applied to each part of the lower limbs and the temperature of each part of the lower limbs is raised, it is good at the beginning when the hot air is hitting, but in the vehicle air conditioner, the air flow rate is reduced. However, since the air temperature is in the direction of increasing, there is a problem that, after a certain period of time has elapsed, the heat becomes felt. The present invention has been made by paying attention to such conventional problems, and makes it possible to keep the temperature of the lower limbs constant, and not to raise the temperature of each part of the lower limbs, so that the occupant does not feel the heat. It is aimed.
[0004]
[Means for Solving the Problems]
In the invention of claim 1, in the vehicle air conditioner provided with the foot outlet so as to blow out the warm air to the lower limb of the occupant, the warm air from the foot outlet until the lower limb atmosphere temperature reaches a predetermined temperature. Is blown over the entire lower limb, and when the temperature reaches a predetermined temperature, the blowing of the warm air is stopped .
[0005]
The foot outlet has an opening / closing means supported by an elastic body, and the opening / closing means supported by these elastic bodies have different elastic forces.
[0006]
The invention according to claim 2 is characterized in that the foot outlet blows out warm air so as to be directed to each part of the lower limb.
[0007]
【The invention's effect】
In the invention of claim 1, until the lower limbs ambient temperature reaches a predetermined temperature, hot air is blown from the foot outlet to the entire lower limbs, and when the predetermined temperature is reached, the hot air blowing is stopped, Until then, the crew can feel the warmth directly. When the passenger feels warmth sufficiently, the occupant operates the vehicle air conditioner in a direction to reduce the air volume. However, since the air temperature increases when the air volume decreases, the temperature of each part of the lower limb tends to increase. However, when the ambient temperature of the lower limbs reaches a predetermined temperature first, warm air can be felt by the atmospheric temperature by stopping the blowing of warm air to each part of the lower limbs, but the temperature of each part of the lower limbs itself increases. You don't have to do so, so you don't feel the heat.
[0008]
In addition, the foot outlet has an opening / closing means supported by an elastic body, and each of the opening / closing means supported by the elastic body has a different elastic force. The amount of warm air to be controlled can be controlled, and a difference in warmth can be obtained for each part of the lower limbs.
[0009]
In the invention of claim 2, since the foot outlet blows out warm air so as to be directed to each part of the lower limbs, it is possible to directly feel the warmth to each part of the lower limbs and to obtain a more immediate warm feeling. It becomes.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0011]
FIG. 1 shows an overall configuration diagram of an embodiment of the present invention. An air conditioner control panel 2 is installed in the center console 1, and a blowout port 3 for the passenger compartment is installed in each part of the instrument panel 4. The air outlet 3 for the passenger compartment is connected to the foot outlets 5 and 6 for the left and right feet for the driver having four openings directed to each part of the lower limb as will be described later through a duct not shown. ing. The right foot foot outlet 5 for the driver will be described in detail later with reference to FIG. 2, and 5 has a plurality of openings for blowing warm air toward the lower limbs of the right foot 7 respectively. The embodiment will be specifically described with reference to FIG. For example, when the vehicle interior temperature is 10 ° C below freezing point, the passenger feels cold, and in such a case, the feet are immediately lacking a sense of warmth. The passenger then operates an air conditioner control panel 2 installed in the center console 1. And the warm air coming out from the blowout port 3 for the passenger compartment installed in each part of the instrument panel 4 has four openings directed toward the respective parts of the lower limbs. Flows through a duct (not shown). When the vehicle air conditioner is a fully automatic air conditioner, when the wind direction mode is foot mode and the air volume is high, the air volume of the foot outlets 5 and 6 for the left and right feet having four openings directed toward each part of the lower limb Is about 1 m ³ / min.
[0012]
In FIG. 2, the foot outlet 5 for the right foot has four opening / closing means each having an opening angle different from each other so that the blowing angle of the warm air is directed to each part of the lower limb, and the opening is supported by an elastic body. The positional relationship with each part below the lower limb of the right foot 7 is shown. Reference numeral 5a denotes an opening for blowing warm air toward the toe portion 7a of the right foot 7. Reference numeral 5b denotes an opening for blowing warm air toward the upper portion 7b of the right foot 7. 5c shows the opening which blows warm air toward the ankle portion 7c of the right foot 7. Reference numeral 5d denotes an opening for blowing warm air toward the shin portion 7d of the right foot 7. As described above, there is an opening for each part of the lower limb, and warm air can be efficiently sent to each part of the lower limb. Furthermore, since the opening supported by the elastic body that blows warm air toward each part of the lower limb has different elastic force, the amount of warm air blown to each part of the lower limb can be controlled, and the lower limb Differences in warmth can also be obtained for each part of. For example, the ankle portion 7c of the right foot 7 in FIG. 2 is covered only with socks, and thus is a portion where warmth is easily felt earlier than other portions. In other words, the ankle portion is a portion where the heat is felt earlier than the other portions. Therefore, the elastic force of the opening 5c is designed to be stronger than the elastic force of the other openings so that the opening 5c closes earlier than the other openings.
[0013]
FIG. 3 shows an enlarged view of FIG. 2 of a foot outlet having four opening / closing means for blowing warm air directed to each part of the lower limb and blowing openings with an elastic body. An arrow F ₁ in the figure visually indicates the hot air controlled by the air conditioner. The warm air is blown toward each part of the lower limb by opening the air opening having an opening / closing means supported by the elastic body by the force of the warm air.
[0014]
4 and 5 are cross-sectional views taken along line AA for illustrating the operation in FIG. F _{2 in} FIG. 4 indicates when the air volume of the air conditioner is small. In this case, since the air volume of the air conditioner is small, the opening / closing angle of the air opening having the opening / closing means 8 supported by the elastic body is reduced, and the amount of warm air sent to each part of the lower limb is reduced, so It becomes difficult to feel it. F _{3 in} FIG. 5 indicates when the airflow of the air conditioner is large. In this case, the opening / closing angle of the air opening having the opening / closing means 8 supported by the elastic body is increased, and the amount of warm air sent to each part of the lower limb increases, so that the occupant can easily feel warmth.
[0015]
In this embodiment, polypropylene is used as the elastic body, and the elastic body and the outlet are integrally formed.
[0016]
Furthermore, it goes without saying that the elastic body of the present invention includes other application examples such as a spring.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram of an embodiment of the present invention.
FIG. 2 is a diagram showing a positional relationship between the outlet and each part below the lower limbs.
FIG. 3 is an enlarged view of the foot outlet in FIG. 2;
4 is a cross-sectional view taken along line AA for illustrating the operation in FIG. 3 when the air volume of the air conditioner is small.
FIG. 5 is a cross-sectional view taken along line AA for illustrating the operation in FIG. 3 when the air volume of the air conditioner is large.
[Explanation of symbols]
1 Center console
2 Air conditioner control device
3 Car interior outlet
4 Instrument panel
5 Foot outlet for right foot
5a Opening with the wind direction adjusted toward the right toe
5b Opening with the wind direction adjusted toward the right instep
5c Opening with the wind direction adjusted toward the right ankle
5d Opening with the wind direction adjusted toward the right shin
6 Foot outlet for left foot
7 Right foot
7a Right foot toe
7b Right instep
7c right foot ankle
7d Right foot shin part
8 Opening and closing means supported by an elastic body

Claims (2)

In a vehicle air conditioner provided with a foot outlet so as to blow warm air to the lower limbs of the occupant, warm air is blown from the foot outlet to the entire lower limb until the lower limb atmosphere temperature reaches a predetermined temperature. comes to, have a structure to stop blowing of the warm air,
The foot air outlet has an opening / closing means supported by an elastic body, and the opening / closing means supported by the elastic body has different elastic forces .   The vehicle air conditioner according to claim 1, wherein a plurality of the foot outlets are provided, and warm air is blown out so as to be directed to each part of the lower limb.

Images