JP2004203190A - Air conditioner for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner for an open car capable of improving comfort for a lower half body of an occupant by flowing blowout air to a waist part of the occupant at the time of a roof open mode by providing an additional blowout port separately from a foot blowout port and devising it to be capable of controlling to open and close not only this additional blowout port but also the foot blowout port by one mode door. <P>SOLUTION: The foot blowout port 19 is provided below an air conditioner case 2, and an additional ventilation flue 22 reaching the additional blowout port 21 is formed by branching it from a foot ventilation flue 20 reaching this foot blowout port 19. Additionally, the mode door 23 for the foot blowout port is arranged at its branching point, and this mode door 23 is made to move by one actuator 30. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for an automobile of a vehicle whose roof can be opened and closed, such as a sunroof and a canvas top car, as well as an open car whose roof can be opened and closed.
[0002]
[Prior art]
When running with an open car roof open, entrained wind is generated in the passenger compartment, and the entrained wind reaches the driver's seat and the passenger seat from the rear side of the vehicle. When the outside temperature is low, the occupant's knees and thighs As a result, a cold sensation occurs in the waist. To solve this problem, Patent Document 1 discloses a configuration in which an intermediate air outlet is provided between an upper air outlet and a foot air outlet, and hot air is blown from the intermediate air outlet toward a knee or a waist of an occupant. ing.
[0003]
When the open car is opened or closed, the air conditioning must be different. In Patent Document 1, the occupant has to control the opening and closing of the intermediate outlet by manual operation, and if the manual operation is neglected, the air condition may be deteriorated. Patent Literature 2 has been developed to solve this problem. That is, the opening / closing control of the intermediate outlet is performed in conjunction with the opening / closing operation of the roof only when the foot outlet mode is selected. When the roof is opened, the intermediate outlet is opened, and the conditioned air is blown. Things.
[0004]
[Patent Document 1] JP-A-2000-118225
[Patent Document 2] JP-A-2002-12020
[0005]
[Problems to be solved by the invention]
In the above-mentioned Patent Document 1, in addition to the above-mentioned disadvantages, an intermediate outlet must be provided. Not only is the design of the air-conditioning case changed, but also the center console is provided with the outlet. Design changes had to be made, which was a factor in increasing costs.
[0006]
Further, in the above-mentioned Patent Document 2, the MID door 18 that controls the opening and closing of the intermediate outlet is performed in conjunction with the opening and closing operation of the roof. However, the servo motor 19 that moves the DEF door 16 and the FACE door 17 does , Are driven by independent servo motors 29. That is, two servo motors are required, which causes an increase in cost.
[0007]
Therefore, an object of the present invention is to reduce the manufacturing cost while assuming that the warm air is supplied to the vicinity of the waist portion in the roof open mode to improve the comfort of the lower body of the occupant. A second object is to make it possible to continuously control the opening / closing operation of the foot outlet and the additional outlet by the mode door for the foot outlet. Further, a third object is to enable hot air to be supplied to the vicinity of the waist only by changing the structure of the foot outlet.
[0008]
[Means for Solving the Problems]
An automotive air conditioner according to the present invention has an evaporator for cooling introduced air and a heater core for heating in an air conditioning case, a mix door for controlling an amount of cooling air sent to the heater core, and a defrost outlet downstream of the heater core. A vent outlet, a foot outlet, and an additional air passage branching from the foot air passage leading to the foot outlet and extending to the additional outlet, and a mode door for foot outlet control is provided at the branch point. The present invention is characterized in that the foot outlet is continuously changed from closed to open and the additional outlet is opened by opening of the foot outlet control mode door (claim 1).
[0009]
Because of this, not only the opening and closing of the foot outlet, but also the opening and closing of the additional outlet are performed continuously with only the mode door for the foot blowing, and the mode door for one foot blowing is controlled. One mode cam has good advantages to move.
[0010]
The mode door for controlling the foot outlet is linked to the movement of the mode door for controlling the opening and closing of the defrost outlet and the vent outlet, and is driven by one mode cam and one actuator. (Claim 2). For this reason, one mode cam is driven by one actuator to control all the mode doors, and even if the number of modes in the blowout mode increases, one mode cam can be changed.
[0011]
A roof open mode is employed between the foot mode and the differential foot mode of the blowing mode, and in this roof open mode, both the foot outlet and the additional outlet are opened (claim 3). Therefore, it is possible to control the opening of the additional air outlet in the roof open mode by the mode door for controlling the foot air outlet, and it is not necessary to provide a special mode door.
[0012]
In addition, an automotive air conditioner according to another invention has an evaporator for cooling introduced air and a heater core for heating in an air conditioning case, and a mix door for controlling an amount of cooling air sent to the heater core. A defrost air outlet, a vent air outlet, and a foot air outlet are provided downstream, and a wind direction adjusting guide member for changing a blowing direction of a part of the blown air is disposed at the foot air outlet (claim 4). . Therefore, if the wind direction adjusting guide member provided at the foot outlet is changed as necessary, the flow of the blown air can be changed not only to the feet but also to the waist portion. The above-described operation can be achieved only by providing a wind direction adjusting guide member at the foot outlet of the air conditioning case.
[0013]
The direction of the wind direction adjusting guide member is changed in the roof open mode, so that conditioned air is supplied not only to the feet but also to the waist portion (claim 5). Thereby, the wind direction adjusting guide member changes its direction in conjunction with the roof open mode, and the air conditioning environment in the vehicle compartment can be maintained comfortably.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
[0015]
The vehicle air conditioner 1 has a fan 3 for introducing outside air or inside air above the air conditioning case 2, and the air introduced by rotating the fan 3 flows through the air flow path 4. The dust passes through the air filter 6 and the evaporator 7 to remove dust and is cooled to become cool air, which is then sent to a mix door 8 provided downstream.
[0016]
The mix door 8 is provided on the front surface of the heater core 12 described below, and crosses the air flow path 4, and has a function of controlling the amount of cool air supplied to the heater core 12. The configuration is a square shape, the vertical dimension is about half the transverse dimension of the air flow path 4, and a rack 9 is engraved in the vertical direction on the front surface.
[0017]
The rack 9 meshes with a pinion 10 which is rotated by transmitting a rotational force from the outside of the air-conditioning case 2 and rotates up and down on a guide groove (not shown) by the rotation of the pinion 10. And the amount of cold air supplied to the heater core 12 is adjusted.
[0018]
The heater core 12 is arranged so as to cross the air flow path 4 so that the air flow path 4 is divided into a heating flow path 4a for heating cool air and a bypass flow path 4b for flowing cool air as it is. I have. The amount of the cool air supplied to the heater core 12 is controlled by the mixing door 8 described above, and is appropriately selected according to the position of the mixing door 8. Then, downstream of the heater core 12, the hot air that has passed through the heater core 12 and the cool air that has flowed through the bypass flow path 4b are mixed to reach a required air temperature, and are blown out from an outlet determined by a selected blow mode described below. Is what is done. Reference numeral 13 denotes an auxiliary heater.
[0019]
It has a defrost air outlet 15, a vent air outlet 17, a foot air outlet 19, and an additional air outlet 21 as air outlets from which the conditioned air is blown out. It opens upward, and each of the outlets 15 and 17 has a mode door 16 and 18 for opening and closing it. The doors 16 and 18 are both rotated by driving from one mode cam 25.
[0020]
The foot outlet 19 is opened below the air-conditioning case 2, and a foot ventilation path 20 is formed in the up-down direction. The additional ventilation path 22 from the middle of the foot ventilation path 20 to the additional air outlet 21 is branched. A mode door 23 is arranged at the junction. The mode door 23 is rotated by the driving force from the one mode cam 25 described above. That is, the blowing mode is closed at the time of defrost and vent, is closed at the time of the foot, is half-opened, and the conditioned air flows only through the foot ventilation passage 20, and the conditioned air flows through the additional ventilation passage 22 when the roof is opened.
[0021]
As described above, in the roof open mode, the conditioned air (mainly hot air) is also flown from the additional air outlet 21 to the waist portion of the occupant, so that the feet and waist can be prevented from cooling.
[0022]
Reference numeral 25 denotes a single mode cam, which is a plate-shaped one having a cam groove formed on one surface thereof, and levers 26, 27, 28 connected to the mode doors 16, 18, 23 of the respective outlets in this cam groove. The mode cam 25 is controlled in rotation by an actuator 30 rotated by a drive signal from a control unit (not shown).
[0023]
Next, a second invention will be described with reference to FIGS.
[0024]
From the foot outlet 19 of the air conditioning case 2 of the automotive air conditioner 1, conditioned air at a required blowing temperature is blown into a vehicle interior by an evaporator, a heater core, and a mix door (not shown). A wind direction adjusting guide member 35 is disposed at the foot outlet 19 and is connected by an actuator 36 via a link mechanism.
[0025]
The direction of the wind direction adjusting guide member 35 is changed in a roof open mode in a vehicle such as an open car, and when the roof open mode is selected manually or automatically, a control unit (not shown) Is input and the actuator 36 is driven to perform the operation automatically.
[0026]
When the wind direction adjusting guide member 35 is in the state as shown in FIG. 3, all the blown air flows as shown by the arrows, and reaches the feet of the occupant. However, when the direction is changed to the state shown in FIG. 4, a part of the blown air flows along the center console as indicated by an arrow A and reaches the occupant's waist, and when the roof is opened, the leg portion is opened. And the coldness of the waist is prevented.
[0027]
As described above, according to the second aspect of the present invention, a part of the blown air can be flowed when the roof is opened by a simple change of the structure in which the wind direction adjusting guide member 35 is provided at the foot outlet 19. It has the advantage that it can be warmed up to parts.
[0028]
【The invention's effect】
As described above, according to the first aspect, the additional air outlet and the foot air outlet for blowing the conditioned air to the waist portion are opened by the movement of one mode door, and the additional air outlet is opened. The outlet can be controlled continuously when it is opened, and the mode door can be controlled with one mode cam and one actuator, which does not increase the manufacturing cost. It is easy to manufacture because it is only a change of providing a roof open mode position in a cam groove formed in one mode cam, and an air conditioner with or without an additional air outlet can be handled simply by changing one mode cam It is.
[0029]
According to the second aspect, by changing the direction of the wind direction adjusting guide member provided at the foot outlet, a part of the blown air can be quickly flowed to the waist portion of the occupant. Moreover, there is a good advantage in a simple configuration change only by providing the wind direction adjusting guide member at the foot outlet.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a vehicle air conditioner according to a first invention.
FIG. 2 is an enlarged cross-sectional view of a vicinity of a branch point between a foot ventilation passage leading to a foot ventilation outlet and an additional ventilation passage branching from the foot ventilation passage to an additional ventilation outlet.
FIG. 3 is an explanatory diagram showing a flow of blown air in a configuration near a foot outlet of a vehicle air conditioner according to a second invention.
FIG. 4 is an explanatory diagram showing a flow of blown air in a state where a wind direction adjusting guide member provided at the foot outlet of the above has changed its direction.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air conditioner for vehicles 2 Air conditioning case 3 Fan 7 Evaporator 8 Six door 12 Heater core 15 Defrost outlet 16 Mode door 17 Vent outlet 18 Mode door 19 Foot outlet 20 Foot ventilation 21 Additional ventilation 22 Additional ventilation 23 Mode door 25 Mode cam 30 Actuator 36 Actuator

Claims (5)

The evaporator has an evaporator for cooling the introduced air and a heater core for heating the air in the air conditioning case, and a mix door for controlling an amount of the cooling air sent to the heater core.A defrost outlet, a vent outlet, and a foot outlet are provided downstream of the heater core. An additional air passage branching from the foot air passage leading to the foot air outlet and leading to the additional air outlet is provided, and a mode door for foot air outlet control is arranged at the branch point, and the mode door for the foot air outlet control is provided. The vehicle air conditioner is characterized in that the foot outlet can be continuously changed from closed to open and the additional outlet can be opened by the movement of. The mode door for controlling the foot outlet is linked with the movement of the mode door for controlling the opening and closing of the defrost outlet and the vent outlet, and is driven by one mode cam and one actuator. The automotive air conditioner according to claim 1, wherein 2. The vehicle according to claim 1, wherein a roof open mode is adopted between the foot mode and the differential foot mode of the blowing mode, and both the foot outlet and the additional outlet are opened in the roof open mode. Air conditioner. The evaporator has an evaporator for cooling the introduced air and a heater core for heating the air in the air conditioning case, and a mix door for controlling an amount of the cooling air sent to the heater core.A defrost outlet, a vent outlet, and a foot outlet are provided downstream of the heater core. And a wind direction adjusting guide member for changing a blowing direction of a part of the blown air is disposed at the foot outlet. The vehicle air conditioner according to claim 4, wherein the direction of the wind direction adjusting guide member is changed in a roof open mode so that conditioned air is supplied not only to the feet but also to the waist portion.

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