WO2006038368A1

WO2006038368A1 - Air conditioner for vehicle

Info

Publication number: WO2006038368A1
Application number: PCT/JP2005/014065
Authority: WO
Inventors: Masayuki Fujimoto; Hideki Nagano; Toshio Tsubakida
Original assignee: Valeo Thermal Systems Japan Corporation
Priority date: 2004-10-01
Filing date: 2005-08-02
Publication date: 2006-04-13
Also published as: JP2006103396A

Abstract

An air conditioner for vehicle, which enables to secure a vertical space in a vehicle center portion and enables to reduce a noise level in a vehicle interior by attenuating noise produced in an air conditioner body or noise transmitted through the air conditioner body. An air conditioner for a vehicle, having an air conditioner body (3) in which air path (11) is formed, a duct section (4) connected to the air conditioner body (3), a blower (5) for sending air via the air conditioner body (3), a temperature adjustment means for adjusting the temperature of the air flowing in the air conditioner body (3), and a blow-out mode switching means for sending out the air, whose temperature is adjusted by the temperature adjustment means, by selecting a blow-out opening provided on the downstream side of the temperature adjustment means, wherein the air path (11) up to the blow-out mode switching means is split into the left and right, blow-out mode switching devices (20a, 20b) are separated for each air path, and a space section (21) is provided between the left and right blow-out mode switching devices (20a, 20b).

Description

Specification

Air conditioner for vehicles

Technical field

TECHNICAL FIELD [0001] The present invention relates to an air conditioner used for a vehicle or the like, and relates to a vehicle air conditioner in which a blowing mode switching means is divided into left and right.

Background art

[0002] Currently, as a vehicle air conditioner in which a mode switching unit for switching a blowing mode to a defrost mode, a side vent mode, a center vent mode, or the like is divided into left and right, configurations shown in Patent Document 1 and Patent Document 2 described below are provided. Are known.

[0003] Among these, Patent Document 1 describes an evaporator disposed on the downstream side of a blower in a so-called semi-center type vehicle air conditioner that offsets a blower unit with respect to other air conditioners in the vehicle width direction. A configuration is disclosed in which the downstream side is divided by a partition plate and the air air path to the mode switching unit is divided into left and right.

[0004] Patent Document 2 discloses an evaporator disposed downstream of a blower in a so-called full-center type vehicle air conditioner in which other air conditioners including a blower are arranged at substantially the same position in the vehicle width direction. A configuration is disclosed in which the downstream side is divided by a partition plate, and the air air path to the mode switching unit is divided into left and right.

Patent Document 1: Japanese Patent Application Laid-Open No. 2004-74922

Patent Document 2: Japanese Patent Laid-Open No. 2004-9754

Disclosure of the invention

Problems to be solved by the invention

[0006] In the above-described air conditioner installed at the center in the vehicle width direction, the air conditioner is installed in the center upper part of the instrument panel in response to a request for independent left and right control of the blowout mode as a request on the vehicle side. Since the operation unit, audio unit, car navigation system, etc. are concentrated, it is necessary to secure a vertical space.

Another important issue is the ability to reduce the noise generated in the air conditioning body or the noise propagated in the air conditioning body. [0007] The present invention has been made in view of intensive circumstances, and it is possible to secure a vertical space in the center of the vehicle while ensuring a configuration that realizes a left and right independent blowing mode. The main challenge is to provide a vehicle air conditioner that can reduce noise generated in the air conditioning body or noise transmitted through the air conditioning body to reduce the noise level in the passenger compartment. .

Means for solving the problem

[0008] In order to achieve the above object, an air conditioning apparatus for a vehicle according to the present invention includes an air conditioning main body portion in which an air passage is formed, a duct portion connected to the air conditioning main body portion, and the air conditioning main body portion. And a temperature control means for adjusting the temperature of the air flowing in the air conditioning main body, and a blower provided on the downstream side of the temperature control means. And a blowing mode switching means for selecting and sending out the opening for the air, and the air passage to the blowing mode switching means is divided into left and right and the blowing mode is divided into the divided air passages. The switching means is provided separately, and a space is provided between the left and right blowing mode switching means (Claim 1).

Therefore, the passage to the blow mode switching means is divided into left and right, the blow mode switching means is provided in each of the divided air passages, and the space is provided between the left and right blow mode switching means. Therefore, even when the air conditioner is installed in the center of the vehicle in the vehicle width direction, it is possible to secure a space above the air conditioner by the space provided between the blowing mode switching means. Also, the passage to the blowing mode switching means is divided, and the divided passage force is also routed by the terminal duct that leads to the blowing grill if necessary, so that the air that has passed through the end of the air conditioning main body is made to bend and flow Noise generated in the air conditioning main unit or the air conditioning main unit

It becomes possible to attenuate the noise that has propagated inside.

[0010] Here, a part of the blower may be arranged in a space formed between the left and right blowing mode switching means (claim 2). According to such a configuration, it is possible to increase the size of the blower in a limited space and improve the blowing performance.

[0011] Also, the air passage is divided into left and right in the duct portion, and left and right blowing mode switching means are provided in the data section (Claim 3), but the door of the blowing mode switching means is used as a common input. It is also possible to control them synchronously (claim 4).

[0012] As a specific configuration for synchronizing the doors of the left and right blowing mode switching means with a common input, the door of the left and right blowing mode switching means is connected to each link mechanism with one cable being bifurcated. Alternatively, each link mechanism may be operated by a single actuator. At this time, the door link mechanism of the left and right blowing mode switching means is preferably installed on the space side in order to simplify the link mechanism.

[0013] In order to facilitate mounting of the air-conditioning apparatus on the vehicle, the air-conditioning main body part and the duct part are joined by fitting the duct part from above or by obliquely rearward upward force. (Claim 6).

[0014] Further, in order to effectively use the space portion and improve the circulation efficiency of the left and right indoor air, an inside air introduction duct for introducing the inside air of the intake device may be arranged in the space portion (claim 7). .

[0015] Further, in order to facilitate the disposition of the terminal duct on the downstream side of the mode switching means, the blowing opening that is opened and closed by the left and right blowing mode switching means is provided from the front of the vehicle to the defrost blowing opening. It is preferable to arrange the side vent blowing opening and the center vent blowing opening in this order (claim 8).

[0016] Furthermore, in order to facilitate the assembly of the terminal duct, the side vent duct may have a structure that can be fitted to the duct portion from the left-right direction of the vehicle (Claim 9). For this purpose, the right and left doors for the left and right blowing mode switching means may be used in common (claim 10).

The invention's effect

[0017] As described above, according to the vehicle air conditioner of the present invention, the passage to the blowing mode switching means is divided into left and right, and the blowing mode switching means is provided in each of the divided air passages. Since the space is provided between the left and right outlet mode switching means, it is possible to secure a space above the air conditioner and to allow the air to bend and flow. It is possible to reduce the noise level in the passenger compartment by attenuating the noise generated in the cabin or the noise propagated in the air conditioning main unit.

Brief Description of Drawings FIG. 1 is a front view showing an overall configuration of a vehicle air conditioner according to the present invention.

FIG. 2 is a side view of the vehicle air conditioner of FIG.

[FIG. 3] FIG. 3 is a schematic diagram illustrating a mechanism of a vehicle air conditioner according to the present invention.

FIG. 4 is a cross-sectional view taken along line AA of the vehicle air conditioner shown in FIG.

FIG. 5 is a cross-sectional view showing a configuration example of a duct portion of a vehicle air conditioner according to the present invention.

6 is a cross-sectional view of the vehicle air conditioner shown in FIG. 3 cut along line BB.

FIG. 7 is a perspective view showing a connection relationship between a side vent outlet duct and a duct portion. Explanation of symbols

[0019] 1 Air conditioner

3 Air conditioning body

4 Duct section

5 Blower

6 Enoporator

7 Heater core

10 Air mix door

11 Air flow path

16 Center vent outlet

17 Defrost blowout opening

18 Side vent opening

20 Blowout mode switching device

21 Space

22 Center vent mode door

23 Mode door for differential venting

40 Intake device

45 Inside air introduction duct

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the best embodiment of the present invention will be described with reference to the accompanying drawings.

1 and 2, an overall configuration diagram of the vehicle air conditioner is shown, and in FIG. 3, a configuration diagram showing the mechanism of the vehicle air conditioner in a simplified manner is shown.

[0022] This vehicle air conditioner 1 is of a full center type that is mounted on the center console section of the vehicle, and is arranged closer to the vehicle compartment side than the partition plate 2 that partitions the engine room and the vehicle compartment. The duct section 4 is detachably connected to the air conditioning main body section 3 in which the air flow path 11 is formed. The air-conditioning main body 3 contains a blower 5, an evaporator 6, a heater core 7 and the like at substantially the same position in the vehicle width direction, and the air-conditioning main body receives the inside air and the outside air via an intake device 40 provided facing the blower 5. Introduce it inside the club!

[0023] In this example, the evaporator 6 is disposed below the blower 5 on the downstream side, and is erected so as to allow all the air introduced into the air conditioning main body 3 to pass therethrough. It is erected on the lower side of the air conditioning body 3 on the downstream side (vehicle compartment side) of the evaporator 6. In the figure, “front” refers to the front side of the vehicle and refers to the engine room side. In addition, the rear means the rear side of the vehicle and indicates the passenger compartment side.

[0024] The heater core 7 is provided so as to face the lower half of the evaporator 6! /, And above the heater core 7, the air passing through the evaporator 6 is bypassed by the heater core 7. A cold air passage 8 leading to the flow side is formed. Further, a hot air passage 9 for guiding the air that has passed through the heater core 6 to the downstream side is formed with the backward force of the heater core 6 also directed upward.

An air mix door 10 that adjusts the ratio of the air flowing through the cold air passage 8 and the air flowing through the hot air passage 9 is disposed above the heater core 7. This air mix door 10 is constituted by a plate door, and is a position force that fully closes the cool air passage 8 and is rotated to a position where the warm air passage 9 is fully closed. When fully closed, the hot air passage 9 is fully opened, and when the hot air passage 9 is fully closed, the cold air passage 8 is fully opened.

[0026] Therefore, air flows from the blower 5 to the air conditioner main body 3 in the downward direction and flows upward through the evaporator 6 and the heater core 7 in the process of making a U-turn downward. A letter-shaped air passage 11 is formed!

[0027] On the downstream side of the air mix door 10, the air that has passed through the cold air passage 7 and the hot air passage 9 A mixing area 12 is formed for mixing the air that has passed through the air-conditioning unit, and a blow-off opening for taking out the temperature-controlled air is provided downstream of the air mixing door 10 and the air-conditioning main unit 3 and the data unit 4. Is provided.

[0028] In this example, the other blowing openings except for the foot blowing openings 15, that is, the center vent blowing openings 16, the defrost blowing openings 17, and the side vent blowing openings 1 8

Are provided in the duct portion 4, and the foot blowing openings 15 are provided in the left and right side walls of the air conditioning main body portion 3.

[0029] The duct portion 4 is fitted to the vehicle rear side upper end surface 3a of the air-conditioning main body portion 3 that is substantially at the same level as the lower end of the blower 5 from above or obliquely rearwardly with upward force. As shown also in FIG. 4, it is extended upward so as to diverge into two forks on the downstream side of the connection portion with the air conditioning body 3. Each of the branched duct portions 4 (the left duct portion 4a and the right duct portion 4b) has other blowout openings (a center vent blowout opening 16, a defrost blowout opening 17) except for the foot blowout opening 15. And a blowing mode switching device 20 for adjusting the opening degree of the side vent blowing opening 18) (a left blowing mode switching device 20a for switching the left blowing mode and a right blowing mode switching device 20b) for switching the right blowing mode. It is installed. That is, the air passage 11 to the blowing mode switching device 20 is divided into left and right at the duct portion 4 (left air passage 11a, right air passage l ib), and the blowing mode switching device 20 is divided into the respective air passages 11a, l. A space 21 is formed between the left and right blowing mode switching devices (20a, 20b).

Further, as shown in FIG. 5, the duct portion 4 is formed so that the upper end portion extends to the front side of the vehicle, and the center vent blowing opening 16 includes the left duct portion 4a and the right duct. Each of the parts 4b is formed in the upper part of the vehicle rear side wall surface, and the defrost blowing opening 17 is formed in the vehicle front side wall surface located at the most downstream end of the dirt part 4, and the side vent blowing opening 18 Is formed on the upper wall surface located between the center vent blowing opening 16 and the defrost blowing opening 17 of the duct portion 4. That is, the blowout openings (center vent blowout opening 16, defrost blowout opening 17, and side vent blowout opening 18) opened and closed by the left and right blowout mode switching devices 20a, 20b Diff mouth from front The strike outlet 17, the side vent outlet 18, and the center vent outlet 16 are arranged in this order.

[0031] The opening degree of the center vent opening 16 is adjusted by the center vent mode door 22, and the defrost blowing opening 17 and the side vent blowing opening 18 are opened by the differential vent mode door 23. The degree is adjusted. In addition, the opening of the foot outlet 15 is adjusted by a foot mode door 19.

[0032] The center vent mode door 22 and the differential vent mode door 23 are common to the left and right, and are synchronized with a common input. That is, the left side (passenger side) center vent mode door 22a and the differential vent mode door 23a can be used as the right side (driver's side) center vent mode door 22b and the differential vent mode door 23b. The cable 25 leading to the control panel 24 attached to the instrument panel is divided into two branches and connected to the link mechanisms 26a and 26b that drive the left and right mode doors (shown in Fig. 1). The mode door is driven simultaneously. The left and right link mechanisms 26a and 26b are installed on the space 21 side of the branched left and right duct parts 4a and 4b. In this example, the rod 27 is attached so that the left and right link mechanisms 26a and 26b are accurately synchronized. They are connected via Further, the space portion 21 is arranged so that a part of the blower 5 enters.

[0033] Then, on the downstream side of each blowing mode switching device 20, there are provided a center vent blowing duct 30, a defrost blowing duct 31, and a site vent blowing duct 32 connected to the blowing opening of the duct portion 4. Yes.

The center vent outlet duct 30 is connected to the center vent outlet opening 16 of the duct section 4 and once extended to the space section 21 side, then bent to the rear side of the vehicle and extended to the V, not shown. It is now connected to the center vent outlet grill on the instrument panel. The defrost blowing duct 31 is connected to the defrost blowing opening 17 of the duct portion 4 and extends upward after extending to the front side of the vehicle. Connected. Further, the side vent outlet duct 32 is connected to the side vent outlet opening 18 of the duct section 4 and extends in the direction of the space part 21 force away from the vehicle width direction, and then bent toward the rear side of the vehicle. Extend the It is designed to be connected to the side vent blow grill on the instrument panel. The foot outlet opening 15 is connected to a foot outlet duct 33 opened at the foot. In the figure, 34 is a cross car beam extending in the left-right direction of the vehicle body.

[0034] In the above configuration, the left-side air passage 11a composed of the left-side duct portion 4a and the right-side air passage 4b composed of the left-side duct portion 4b divided into left and right passages to the blowing mode switching device 20 are divided. Since the blowing mode switching devices 20a and 20b are separately provided in each of the ib and the space portion 21 is provided between the divided right and left blowing mode switching devices 20a and 20b, the air conditioner is installed in the vehicle width of the vehicle. Even when installed in the center of the direction, it is possible to secure a space above the air conditioner.

In particular, in the air conditioner (HVAC) having the above-described configuration, the blower 5 is disposed above the unit and on the front side of the vehicle so that the radial direction thereof is the front-rear direction of the vehicle, and on the rear side of the unit and on the rear side of the vehicle However, it is difficult to ensure a sufficient space in the vehicle front-rear direction, but the blowing mode switching device is divided into left and right and a space is provided in the center. This makes it possible to secure a space in the upper center of the instrument panel.

[0035] For this reason, it is possible to secure a sufficient space for accommodating an air conditioner operation unit, an audio unit, a car navigation device, and the like that are concentrated in the upper center of the instrument panel. Further, in this example, since a part of the blower 5 is arranged using the space 21 between the left and right blow-out mode switching devices 20a, 20b, the blower 5 is limited in a limited space. The size can be increased, and the air blowing performance can be improved.

[0036] Further, in the above-described configuration, since the duct portion 4 branches to the left and right and the center vent blowout dust 30 and the side vent blowout duct 32 are bent and drawn, air is bent in the duct. Therefore, it is possible to attenuate the noise generated in the air conditioning main body or the noise transmitted through the air conditioning main body, thereby reducing the noise level in the passenger compartment.

Further, the following effects can be obtained by adopting the above-described configuration.

Since the air conditioning body 3 and the duct 4 are joined by fitting in the vertical direction or diagonally backward, the cross car beam 34 in the instrument panel can be provided close to the air conditioner. Even in such a case, the air conditioner can be easily mounted on the vehicle. It becomes.

Since the blowout openings that are opened and closed by the left and right blowout mode switching devices 20 are provided in the order of the defrost blowout opening 17, the side vent blowout opening 18, and the center vent blowout opening 16 from the front of the vehicle. It is possible to easily arrange the ducts (the center vent outlet duct 30, the defrost outlet duct 31, the site vent outlet duct 32) on the downstream side of the mode switching unit 20.

Moreover, the opening of the center vent blowing opening 16 is adjusted by the center vent mode door 22 by the arrangement of the blowing opening described above, and the defrost blowing opening 17 and the side vent blowing opening 18 are used for the def vent. A configuration in which the opening degree is adjusted by the mode door 23 can be easily formed. Thus, the opening ratio between the differential mode and side mode outlets can be controlled by the differential vent mode door 23 independently of the opening adjustment of the center vent outlet opening 16, for example, Adjusting the ratio between the side vent air flow and the differential mode air flow with the vent outlet opening 16 closed, prevents window fogging by blowing out the differential mode, and occupant comfort by blowing a small amount of warm air from the side vent. It is possible to balance the improvement of

Since the mode doors of the left and right blowing mode switching devices 20 are configured using a common door, the manufacturing can be simplified and the cost can be reduced.

Since the link mechanisms 26a and 26b of the mode doors of the left and right blowing mode switching devices 20 are installed on the space 21 side, the link mechanism can be simplified. Since a space 21 is provided between the left and right blowing mode switching devices 20 and a part of the blower 5 is arranged in the space 21, it becomes possible to reduce the size of the air conditioner in the longitudinal direction of the vehicle. Further, there is no inconvenience that the cross car beam 34 and the air conditioner interfere with each other and the cross car beam 34 is forced to bend, and the cross car beam 34 can be kept straight.

In the above-described configuration example, the left and right outlet mode switching devices 20a and 20b have a specific configuration that synchronizes the doors (center vent mode door 22 and defvent mode door 23) with a common input. Each link mechanism 26a, 26b that drives the door of the mode switching device 20a, 20b is connected to each link mechanism with a single cable 25 However, each link mechanism may be operated by a single actuator. Also, one cable is connected to the link mechanism of either the left or right outlet mode switching device, and the link mechanism of the other outlet mode switching device is connected to the link mechanism of the outlet mode switching device to which the cable is connected by the rod 27. However, the power of one link mechanism may be transmitted to the other link mechanism via the rod 27.

[0039] On the premise of the above-described configuration, an inside air introduction duct for introducing the inside air of the intake device 40 may be disposed in the space portion 21, as shown in FIG. That is, as shown in FIG. 3, the intake device has an outside air introduction port 42 opened and closed by an outside air introduction port opening and closing intake door 41 and an inside air introduction port 44 opened and closed by an inside air introduction port opening and closing intake door 43. Connect the outside air introduction port 42 to the opening 2a of the partition wall 2, connect the inside air introduction duct 45 to the inside air introduction port 44, and rotate the inside air introduction duct 45 above the blower 5 using the space 21. And open the inside air introduction duct 45 to the side opposite to the side where the intake device 40 is provided with respect to the blower 5 (if the intake device is on the passenger seat side, open the inside air introduction duct 45 to the driver seat side). Let's improve the circulation efficiency of the left and right indoor air.

[0040] Further, as shown in FIG. 7, the side vent duct 32 may be configured to be fitted to the duct portion 4 from the left-right direction of the vehicle so as to facilitate the assembly of the duct. .

[0041] Furthermore, in the above-described configuration, the duct portion 4 is bifurcated, and the blowout mode switching device 20 is a blowout opening other than the foot blowout opening 15 (the center vent blowout opening 16, The opening of the defrost blowout opening 17 and the side vent blowout opening 18) was adjusted, but the air conditioning main body 3 was bifurcated and the blowout mode switching device was opened in the foot blowout opening. It is good also as a structure which adjusts the opening degree of all the openings for blowing including the part 15.

Claims

The scope of the claims

[1] An air-conditioning main body portion in which an air passage is formed, a duct portion connected to the air-conditioning main body portion, a blower that blows air through the air-conditioning main body portion, and a temperature of air flowing in the air-conditioning main body portion A vehicle comprising: a temperature adjusting means for adjusting the air temperature; and a blowing mode switching means for selecting and sending the air adjusted by the temperature adjusting means to a blowing opening provided on the downstream side of the temperature adjusting means Air conditioner for

The air passage to the blowing mode switching means is divided into left and right, and the blowing mode switching means is divided into each divided air passage, and a space is provided between the left and right blowing mode switching means. An air conditioner for a vehicle.

2. The vehicle air conditioner according to claim 1, wherein a part of the blower is disposed in the space portion.

[3] The vehicle air conditioner according to claim 1, wherein the air passage is divided into left and right in the duct portion, and the left and right blowing mode switching means are provided in the duct portion.

4. The vehicle air conditioner according to claim 1, wherein the doors of the left and right blowing mode switching means are synchronized with a common input.

5. The vehicle air conditioner according to claim 1, wherein a door link of the left and right blowing mode switching means is installed on the space portion side.

6. The vehicular air conditioner according to claim 1, wherein the air conditioning main body and the duct are joined by fitting the duct from above or from behind. .

7. The vehicle air conditioner according to claim 1, wherein an inside air introduction duct for introducing inside air of the intake device is arranged in the space portion.

[8] The blowout openings that are opened and closed by the left and right blowout mode switching means are arranged in the order of the defrost blowout opening, the side vent blowout opening, and the center vent blowout opening from the front of the vehicle. The vehicle air conditioner according to claim 1, wherein:

9. The vehicle air conditioner according to claim 1, wherein the side vent duct has a structure that can be fitted to the duct portion from the left-right direction of the vehicle.

[10] The door of the left and right blowing mode switching means is a common door on the left and right. The vehicle air conditioner according to claim 1, wherein