JPH09328011A - Left and right independent humidity adjusting type air conditioner for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To be controlled by a driver for a deferential gear mode in a left and right independent humidity adjusting type by causing the door driving mechanism of a driver side wind distribution part to rotate the rotary shaft of the deferential gear door of each wind passage so as to integrally operate the same. SOLUTION: Assistant seat side and driver side wind distribution passages 19As and 19Dr are provided respectively in wind passages F1 and F2 in a wind passage F. Bent, foot and differential gear doors D2, D3 and D4 are provided in the end parts of the wind passages F1 and F2 and driven by door driving mechanisms 5As and 5Dr in a desired mode. The door driving mechanism 5Dr of the driver side rotate one in which the bent and foot doors D2 and D3 of the driver side and the differential gear doors D4 of the assist and driver sides are integrally formed. In a differential gear mode, a compressor, a cooler 12 and a heater core 14 or the like is actuated, only the door driving mechanism 5Dr of the driver side is actuated, the differential gear door D4 is placed in an open position by an actuator and the other doors D2 and D3 are placed in closed positions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a left and right independent temperature control type vehicle air conditioner in which temperature-controlled air is independently distributed to a driver side and an assist side.

[0002]

2. Description of the Related Art Recent air conditioners for vehicles include a left and right independent temperature control type in which air is independently distributed to the driver side and the assist side (for example, Japanese Utility Model Publication Sho 63-89,8).
No. 12, Japanese Utility Model Publication No. 63-143,406, etc.).

For example, this left and right independent temperature control type vehicle air conditioner has a unit case 1 having a ventilation passage F formed therein, as shown in FIG.
Mainly includes an intake section 11 for selectively introducing inside and outside air by rotating a fan 10, and a cooler section 13 including a cooler 12 forming a part of a cooling cycle.
And a heater core 14 through which engine cooling water and the like circulate
And a heater unit 17 having a.

The heater section 17 is provided with bypass passages 15 on both sides of the heater core 14.
5 and the amount of air passing through the heater core 14 are adjusted by the mix door 16.

A partition wall 18 extending in the ventilation direction is provided in the ventilation passage F downstream of the heater section 17.
Separate air passages F1 and F2 are formed by
In each of the ventilation paths F1 and F2, a driver-side air distribution unit 19Dr and an assist-side air distribution unit 19 that blow out conditioned air to the driver side and the assist side independently from each other using a duct (not shown).
As is provided.

The air distribution parts 19As and 19Dr have various air outlets for distributing the temperature-controlled air to the driver side and the assist side. These outlets are a vent port 2 for blowing out cool air into the passenger compartment, a foot port 3 for blowing out hot air, and a differential port 4 for clearing the cloudiness of the windows. Ducts (not shown) are connected to these openings. The air blown out from each of the openings is arranged to distribute the air to the predetermined parts on the driver side and the assist side. At each of these openings, there are vent doors D2, foot doors D3 and differential doors D4. It is provided.

Each of these air distribution doors D is, for example, as shown in FIGS.
The door drive mechanisms 5As and 5Dr, which are respectively provided on the outer side portions of the unit case 1 as shown in FIG. 5, are appropriately driven so as to correspond to a desired mode.

In other words, each door drive mechanism 5 (reference numeral "5" is a general term for both door drive mechanisms) has a rotary shaft S2 of each air distribution door D.
, S3, S4 connected to door links L2, L3, L4
And the groove M2 formed in these links L2, L3, L4
, M3, M4 fitted with pins P2, P3, P4,
One drive link 6 having branch links B2, B3, B4 provided at the tips of these pins P2, P3, P4,
The drive link 6 has an actuator 8 to which a rotary shaft 7 is connected. By driving the actuator 8, the drive link 6, the branch links B2, B3, B4 and the pin P
The door links L2, L3, L4 are operated via 2, P3, P4 to rotate each air distribution door D by a predetermined angle.

For example, in the vent mode (cooling mode), the cooling cycle also operates to operate the compressor, the cooler 12, etc., and the engine cooling water is introduced into the heater core 14 as well, so that the door on the assist side or the driver side. The vent door D2 is set to the open position and the other doors D3 and D4 are set to the closed position by the driving mechanism 5As or 5Dr. Then, a relatively large amount of air cooled in the cooler 12 by the mix door 16 passes, low-temperature air flows through the ventilation passages F1 or F2 of the unit case 1, and is blown out from the vent port 2 into the vehicle compartment.

In the heater mode (heating mode),
The engine cooling water is introduced into the heater core 14 to operate, and the door driving mechanism 5As or 5Dr sets the foot door D3 to the open position and the other doors D2 and D4 to the closed position. Then, the amount of air warmed in the heater core 14 is relatively increased and the bypass passage 15
The cool air that has passed through is mixed with the air passage F1 or F2, and becomes warm air of a predetermined temperature and is blown into the passenger compartment from the foot opening 3.

In the differential mode (window clearing mode), the compressor, the cooler 12, the heater core 14, etc. are operated and the door drive mechanism 5As or 5Dr causes the differential door D4 to be in the open position and the other doors D2 and D3 to be closed. Set to the position. Then, the air dehumidified in the cooler 12, warmed in the heater core 14, and lowered in humidity is blown out from the differential opening 4 toward the window to clear the window.

As described above, the left and right independent temperature control type vehicle air conditioners correspond to various modes, and the left and right air distribution parts 19 are provided.
Since the door drive mechanisms 5As and 5Dr of As and 19Dr are operated independently, even if the driver and the assist side are seated by a hot passenger and a cold passenger, each has a desired temperature control. Can be set to state.

[0013]

However, if the left and right independent temperature control is performed in all modes as described above, the left and right independent operations are performed even in the diff mode. Therefore, even if the diff mode is used by the driver to clear the fog on the window, It is not preferable because only the cloudiness of the front window of the user can be cleared, and the entire window may not be clouded.

In order to solve such a problem, even in the case of the left and right independent temperature control type, when the driver sets the diff mode, it is possible to give priority to the control from the driver side and open both diff doors. is there. For example, means for electrically controlling the door drive using a microcomputer or the like, or mechanically using a so-called idle swing mechanism so that the assist side door drive mechanism 5As is not operated only in the differential mode. Can be considered.

However, all of these means are likely to be greatly improved and have a complicated structure, and the work of assembling the improved means to the vehicle body is troublesome, resulting in high cost. . Especially when the three doors such as the vent door D2 are mechanically controlled by using cams and links like the door driving mechanism 5 exemplified above, it is not easy to change the shape of the cam grooves and the links. There is a possibility that the cost will be extremely high.

The present invention has been made in view of the problems of the prior art as described above, and even if the left and right independent temperature control types are used,
An object of the present invention is to provide a vehicle air conditioner of a left and right independent temperature control type having a simple structure, which allows a driver to control the differential mode.

[0017]

In order to achieve the above object, the invention according to claim 1 provides a heater section in a unit case in which a ventilation passage is formed, and a unit case downstream of the heater section is provided. An independent ventilation path is formed by a partition wall extending in the ventilation direction, and a vent port, a foot opening, and a differential opening are provided in the unit case forming each of these ventilation paths, and a vent door attached to each of these openings,
For left and right independent temperature control type vehicles equipped with air distribution parts that selectively control the rotation of the foot door and the differential door by the door drive mechanism to distribute the conditioned air to predetermined parts on the driver side and the assist side independently In the air conditioner, the door driving mechanism of the driver-side air distribution unit is configured to collectively operate the differential doors of each ventilation passage by rotating an axis of rotation of the differential door by an actuator. And

With this configuration, the driver-side actuator controls the rotation of the rotation shaft of the integrally formed differential door, so that the driver can control the left and right independent temperature control modes in a safety mode other than the differential mode. However, the driver can preferentially control only the diff mode, and only the diff doors need to be changed.Therefore, a simple configuration change can be made even for the left and right independent temperature control type vehicle air conditioner that has been used conventionally. Can be used in.

According to a second aspect of the present invention, the door drive mechanism of the assist side air distribution section connects the assist side vent door and the door link of the foot door with a connecting rod, and when one of the doors is opened, the other door link is opened. It is characterized in that the actuator is configured to control the rotation so that the door is closed.

With this configuration, the door driving mechanism on the assist side has a simple structure, which is advantageous in terms of cost.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall schematic explanatory view of a vehicle air conditioner of a left and right independent temperature control type according to an embodiment of the present invention, and FIG. 2 is a schematic exploded perspective view showing a door drive mechanism of the same embodiment. Therefore, the same members as those shown in FIGS. 3 and 4 may be designated by the same reference numerals.

The vehicle air conditioner 2 according to the present embodiment
As shown in FIG. 1, 0 is an intake unit 11 that selectively introduces the inside and outside air by rotating a fan 10, a cooler unit 13 including a cooler 12 that forms a part of a cooling cycle, and an engine. The heater portion 14 is provided with a heater core 14 through which cooling water or the like flows, and a bypass passage 15 is provided on both sides of the heater core 14, and a heater portion 17 having a mix door 16 for adjusting the amount of air passing through the bypass passage 15 and the heater core 14 is passed. It is located in Road F.

The heater portion 17 is provided with a partition wall 18 extending in the ventilation direction of the ventilation path F, and two independent ventilation paths F1 and F2 are formed by the partition wall 18.
At the ends of the ventilation paths F1 and F2, the air distribution portions 19As and 19
A duct (not shown) is provided with Dr for controlling the temperature of the air.
The left and right are independently blown off to a predetermined portion on the driver side and the assist side by using.

That is, the air distribution parts 19As and 19Dr are provided with a vent opening 2, a foot opening 3 and a differential opening 4 at the ends of the ventilation passages F1 and F2, and the vent door D2, the foot door D3 and the differential door D4 are provided at the respective openings. These doors D are appropriately driven by the door drive mechanisms 5As and 5Dr provided on the outer side portions of the unit case 1 so as to correspond to a desired mode.

The door drive mechanisms 5As and 5Dr are different on the assist side and the driver side. As shown in FIGS. 1 and 2, the assist side door drive mechanism 5As controls only the vent door D2 and the foot door D3 for blowing out conditioned air on the assist side, and both doors D2, D3.
Door links L2, L3 connected to the rotating shafts S2, S3 of the
And a connecting rod 21 connecting the ends of these links L2 and L3, and an actuator 8 connected to rotate the door links L2 and L3.

As described above, the vent door D2 and the foot door D are
If only the actuator 3 is rotationally controlled by the actuator 8, a link for a differential door or the like becomes unnecessary, the structure on the assist side is simplified, and it is advantageous in terms of cost.

On the other hand, the driver side door drive mechanism 5 Dr
Not only the driver-side vent door D2 and the foot door D3, but also the one in which the assist side and the driver-side differential door D4 are integrally formed are rotatable.

In the driver side door drive mechanism 5Dr, it is preferable that only the driver controls the diff mode in terms of traveling safety. Therefore, both diff doors D4 are integrally formed, and the diff door D4 is integrally rotated. Axis S4
The actuator 8 is rotated. This allows the driver to always control the differential door D4.

More specifically, the driver-side door driving mechanism 5Dr includes the rotary shafts S2, S3, S4 of the air distribution doors D.
To the door links L2, L3, L4 and the grooves M2, M3, M4 formed in the links L2, L3, L4.
The pins P2, P3, P4 fitted to the
, P3, P4 are connecting links 22 or branch links B2
, B3, B4, and a drive link 6Dr provided at the tips of the drive link B5 and a drive link 6Dr, and an actuator 8 connected to the drive link 6Dr. 6 Dr
, Connection link 22, branch links B5, B2, B3, B4
And the door link L2 through the pins P2, P3 and P4,
By operating L3 and L4, each air distribution door D is rotated by a predetermined angle.

Next, the operation of the above embodiment will be described.
For example, when the vent mode is set, the compressor, the cooler 12, etc. operate, but in the driver side door drive mechanism 5 Dr, the branch link B2 is driven by the rotation of the actuator 8, and this drive force is applied to the pin P2. It is transmitted to the door link L2 via the door and the vent door D2 is brought to the open position. The other doors do not operate due to the groove M or the like and are in the closed position.

Then, the air cooled in the cooler 12 flows through the ventilation passage F, and the amount of air passing through the bypass passage 15 side and the heater core 14 side is adjusted by the mix door 16 to obtain the air having a predetermined temperature. It is blown into the vehicle compartment from the vent 2 through the ventilation passage F2.

On the assist side when the vent mode is set, the door drive mechanism 5As causes the door link L3 to rotate by the rotation of the actuator 8, whereby the foot door D3 is closed and the door is connected via the connecting rod 21. The link L2 is rotated to open the vent door D2. That is, on the assist side, when the foot door D3 is closed, the vent door D2 is opened, and when the foot door D3 is opened, the vent door D2 is closed. When either one is opened, the other is closed.

On the assist side, only the vent mode and the foot mode are controlled, and in the cooling mode which is the vent mode, the cool air is blown from the vent port 2 to apply the cool air to the occupant's face to obtain a cool air feeling. In the heating mode, which is easy to use, since the warm air is blown from the foot opening 3 to warm the passengers' feet, a feeling of heating is strongly felt. Since one is used and the other is not used, such control is performed.

Then, the air cooled in the cooler 12 flows in the ventilation passage F, and the amount of air passing through the bypass passage 15 side and the heater core 14 side is adjusted by the mix door 16 so that the air has a predetermined temperature. , Is blown into the vehicle compartment from the vent port 2 through the ventilation passage F1.

In the foot mode (heating mode), the heater core 14 operates and the door driving mechanism 5 sets the foot door D3 to the open position and the other doors to the closed position. A relatively large amount of air warmed in the heater core 14 is mixed with the cold air that has passed through the bypass passage 15, and warm air is blown out from the foot opening 3 into the vehicle interior.

When the differential mode (window clearing mode) is set, the compressor, the cooler 12 and the heater core 1
4 etc. are activated and the driver side door drive mechanism 5D
Set only the r so that the differential door D4 is in the open position and the other vent doors D2 and foot doors D3 are in the closed position. Then, the air that has been dehumidified in the cooler 12 and warmed in the heater core 14 is blown out from the differential opening 4 toward the window to clear the window.

Therefore, the diff mode is set only by the driver, and the diff mode can be set immediately when the driver feels necessary during traveling.
The entire window can be cloudy.

However, in addition to the differential mode, both the driver side and the assist side can independently adjust the temperature, and each can air-condition their surroundings in a desired mode, and the occupants have different tastes. However, each can move in a comfortable state.

It should be noted that the driver can set the diff mode by a simple change of the left and right independent temperature control type vehicle air conditioners that have been used in the past, by changing only the assist side diff door. it can. In this case, the configuration of the assist side door drive mechanism 5As does not necessarily have to be changed, and a door drive mechanism that has been used in the past may be used.

The present invention is not limited to the above-mentioned embodiments, but can be variously modified within the scope of the claims. For example, although the vehicle air conditioner of the above-described embodiment has been described for an automobile, the present invention is not limited to this and can be incorporated into a railway vehicle or the like. Further, in the above-mentioned embodiment, the assist side drive mechanism 5As has been described so as to control the vent door D2 and the foot door D3 in an interlocking manner, but the present invention is not limited to this. Depending on the situation, the vent door D2 and the foot door D3 may be independently controlled. Furthermore, both differential doors D4 do not necessarily have to be integrally formed as long as they perform the same operation at the same time.
It may be separate.

[0041]

As described above, according to the first aspect of the invention, since the actuator on the driver side collectively controls the rotation shaft attached to the differential door of each ventilation passage, The driver can preferentially control the diff mode while maintaining the left and right independent temperature control systems other than the diff mode, and since it is only necessary to change the diff door, it is not necessary to use the left and right independent temperature control type vehicle air conditioner. However, it can be used with only a simple configuration change.

According to the second aspect of the present invention, since the door driving mechanism on the assist side is configured to interlock the vent door and the foot door, the door driving mechanism on the assist side is simplified, which is advantageous in cost. .

[Brief description of drawings]

FIG. 1 is an overall schematic explanatory diagram of an embodiment of the present invention.

FIG. 2 is a schematic exploded perspective view showing a door drive mechanism of the same embodiment.

FIG. 3 is an overall schematic explanatory diagram of a conventional left-right independent temperature control type air conditioner for a vehicle.

FIG. 4 is a schematic perspective view showing one door drive mechanism of the vehicle air conditioner.

[Explanation of symbols]

1 ... Unit case, 2 ... Vent port, 3 ... Foot port, 4 ... Differential port, 5 ... Door drive mechanism,
5 Dr ... Door drive mechanism of driver side air distribution unit, 5 As ... Door drive mechanism of assist side air distribution unit, 8 ... Actuator,
17 ... Heater part, 18 ... Partition wall, 19As ... Assist side air distribution part, 19 Dr ... Driver side air distribution part, 21 ...
Connecting rod, D2 ... Vent door, D3 ... Foot door, D4 ... Differential door, F ... Ventilation passage, F
1, F2 ... Ventilation path, L2, L3 ... Door link,
S4… Rotation axis.

Claims (2)

[Claims] 1. A heater part (17) is provided in a unit case (1) having an air passage (F) formed therein, and the heater part (17) is provided.
The partition wall (1
Separate ventilation passages (F1, F2) are formed by 8), and the vent case (2), foot opening (3), and differential opening are formed in the unit case (1) that forms each of these ventilation passages (F1, F2). (4) is provided, and the vent door (D2), foot door (D3), and differential door (D4) attached to each of these openings are selectively rotationally controlled by the door drive mechanism (5) to provide conditioned air to the driver side and the assist side. The air distribution part (19As,
In the vehicle air conditioner of the left and right independent temperature control type equipped with (19Dr), the door drive mechanism (5Dr) of the driver side air distribution section (19Dr) has a differential door (D4) of each ventilation passage (F1, F2). A left-right independent temperature control type vehicle air conditioner characterized in that the rotary shaft (S4) of the differential door (D4) is configured to be collectively operated by being rotated by an actuator (8). 2. The door drive mechanism (5As) of the assist side air distribution part (19As) connects the vent door (D2) of the assist side and the door link (L2, L3) of the foot door (D3) to a connecting rod (21). The left and right independent temperature control system according to claim 1, wherein the actuators (8) are connected so that when one of the doors is opened, the other door is closed. Vehicle air conditioner.