JPS5919604Y2 - Auxiliary blower for automotive air conditioners - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an auxiliary air blower installed above the rear of the front seat of an automobile equipped with an indoor unit of an air conditioner in front of the front seat.

Conventional automotive air conditioners have an indoor unit with a low air volume of around 5 to 6 cubic meters per minute, which is not enough to send enough air to the rear seats, and the width of the indoor unit's air outlet is limited by the storage space. Because it was quite small compared to the width of the passenger compartment, uniform air conditioning within the passenger compartment could not be achieved.

In addition, in order to effectively condition the air inside the vehicle, the first
As shown in the figure, a partition plate 2 made of a transparent vinyl sheet that can be opened and closed is hung behind the front seat 1 to effectively air condition only the front seat side of the vehicle interior. It has been implemented.

However, with this method of using the vinyl sheet as the partition plate 2, the driver's rear visibility deteriorates, and the transparency of the vinyl sheet decreases in one to two years, so it has to be replaced with a new one in a short period of time. was there.

It is also possible to increase the air volume of the indoor unit of the air conditioner in order to air condition the entire vehicle interior, but increasing the air volume of this indoor unit will result in increased noise, which may be harmful to the front seat passengers. make you feel uncomfortable.

In view of the above, the present invention opens a diagonally downward suction port in the front of a horizontally long blower case containing a blower using a cross-flow fan, and also opens a rear air outlet in the rear surface and a downward air outlet in the bottom surface. In front of a vehicle, the blower case is equipped with a swingable casing or a wind direction switching means such as a damper for switching between the two secondary outlets, and an indoor unit of an air conditioner is installed in front of the front seat. The system is characterized by being placed at the upper part of the rear of the seat, and by switching between the rear air outlet and the lower air outlet depending on the number of passengers, it provides air conditioning for only the front seats without impairing the driver's rear visibility. The system enables energy-saving driving, and also sends an accelerated wide range of harmonized air to the rear seats and actively circulates the harmonized air within the passenger compartment, uniformly air conditioning the entire passenger compartment in a short time. It is an object of the present invention to provide an auxiliary blower device for an air conditioner for an automobile.

Hereinafter, the present invention will be explained in detail with reference to an embodiment shown in the drawings.

3 is a horizontally long blower case that is long in the width direction and low in height, and is hollowed out from the main body 4 and the removable side plate 5, and inside it is a wide cross flow fan 6 with a small diameter and long in the axial direction, and a motor 7. A blower 8 and a casing 9 that covers part of the outer periphery of the cross flow fan 6 and is swingably supported at both ends are installed inside, and a wind direction switching means is controlled by the swingable casing 9 and the switching lever 10. 11, the air outlet, which will be described later, can be switched from the outside.

The blower case 3 is formed into a downwardly inclined surface so that its front surface 3A faces the air outlet 12a of the indoor unit 12 of the air conditioner installed in front of the front seat 1. A horizontally elongated suction port 3B is opened, and a filter 13 is attached to the suction port 3B.

Further, the rear surface 3C of the blower case 3 has a laterally elongated rear outlet 3D, and the lower surface 3E has similarly laterally elongated lower outlets 3F.

Although not shown in the drawings, a known deflection plate may be attached to the rear air outlet 3D to diffuse the air flowing rearward in the width direction of the vehicle interior.

It is also recommended that a rectifying plate be installed at the lower air outlet 3F to rectify the downward blowing air to form an air curtain.

Furthermore, this blower case 3 has a rear outlet 3D, a lower outlet 3F, and an inlet 3B each having a width approximately one-half or more of the vehicle interior width, and the wide secondary outlets 3D.
Alternatively, it is preferable that the air inside the vehicle is circulated over the entire width of the single room by blowing air from the third floor.

In addition, it is preferable that the height of the blower case 3 is as low as possible so as not to deteriorate the driver's visibility after installation.
By constructing the wind direction switching means 11 by the casing 9 that can swing along the circumferential surface of the cross flow fan 6 as in this embodiment, the height of the blower case 3 can be reduced.

The auxiliary air blower 14 configured in this manner has a suction port 3 with its upper surface 3G facing upward, as shown in FIGS. 4 and 5.
The front surface 3A with the opening B is directed toward the front of the vehicle interior, facing the indoor unit 12 of the air conditioner installed in front of the front seat 1, and is attached to the ceiling of the single room behind the front seat 1 via an appropriate fixture. .

In this way, the indoor unit 12 of the air conditioner is installed in front of the front seat 1 of the vehicle interior, and the air outlet 12a of the indoor unit 12 and the suction port 3B of the front surface 3A face each other. In the vehicle of this embodiment in which the auxiliary blower device 14 is disposed at the upper rear portion, if the occupant is seated only in the front seat 1, the casing 9 of the auxiliary blower device 14 can be moved through the switching lever 10. When placed in the positions shown in FIGS. 3A and 4, the casing 9 blocks the rear air outlet 3D.

When the air conditioner and the auxiliary blower start operating in this state, the conditioned air blown out from the outlet 12a of the indoor unit 12 of the air conditioner, as shown by the arrow in FIG.
Air is blown diagonally upward toward the suction port 3B of the front surface 3A of the auxiliary blower device 14, is sucked into the blower case 3 of the auxiliary blower device 14, is accelerated by the internal crossflow fan 6, and is directed to the bottom surface of the blower case 3. The air is blown downward from the wide open lower air outlet 3F.

As a result, an air curtain is formed on the back side of the front seat 1, blocking the flow of air between the front and rear portions of the vehicle.

In addition, the wind blown onto the lower surface of the vehicle compartment is transferred to the indoor unit 12.
Due to the suction force of the suction port 12b, most of it flows toward the front seat 1 side and is sucked into the suction port 12b.

When air conditioning is performed by blocking the rear outlet 3D of the auxiliary blower 14 in this way, the conditioned air circulates only in the front of the vehicle, and temperature and humidity can be adjusted in a short time. The harmonized wind that circulates when the vehicle is in use creates an air curtain between the front and rear of the vehicle, blocking the flow of air between the two areas. This prevents the driver's rearward visibility from deteriorating and enables energy-saving driving. can.

In addition, if the occupant is seated on the front seat 1, middle seat 15, or rear seat 16, the casing 9 of the auxiliary blower device 14 is
When the rear air outlet 3D is opened by switching to the position shown in FIG. The harmonized air blown from 12a is sucked into the blower case 3 by the auxiliary blower 14 in the same manner as described above, is accelerated by the internal cross flow fan 6, and is blown out from the wide rear air outlet 3D toward the rear seat 16.
Further, as shown in the figure, the harmonized air flows from the rear seat 16 side through the lower surface of the vehicle compartment to the front seat 1 side and is sucked into the suction port 12b of the indoor unit 12.

When air conditioning is performed by opening the rear air outlet 3D of the auxiliary blower 14 in this way, the accelerated wide harmonized air sufficiently reaches the rear seats and is actively circulated within the passenger compartment. The overall temperature difference becomes smaller in a short time.

The auxiliary air blower 14 attached to the ceiling of the vehicle compartment uses a wide cross-flow fan 6 with a small fan diameter and long axial direction, and a casing in which the wind direction switching means 11 can also swing along the circumferential surface of the fan. Because it is composed of 9,
Since the height of the blower case 3 is low, the driver's rear visibility is not deteriorated, and since the blower 8 uses a quiet loss flow fan 6, the passenger does not feel uncomfortable due to noise. .

FIG. 6 shows another embodiment, in which a blower case 3' containing a blower using a cross-flow fan 6 similar to that of the previous embodiment is provided with a fixed case 3' that covers a part of the circumferential surface of the cross-flow fan 6. A casing 9' is formed integrally with the blower case 3', and has a diagonally downward suction port 3B' on the front surface, a rear air outlet 3D' on the rear surface, and a downward air outlet 3F' on the lower surface, and Direct outlet 3D' and downward outlet 3F
A wind direction switching means 11' using a swingable damper 17 is provided at the branch part of '.

In this way, the casing 9' is formed integrally with the blower case 3', and the damper 17 switches between the two air outlets 3D' and 3F.
This may be done by a wind direction switching means 11' using a switching lever (not shown).

As described above, the present invention installs a wide cross-flow fan in the upper part of the rear of the front seat of a vehicle equipped with an indoor unit of an air conditioner in front of the front seat, and blows air in two directions: backwards and downwards. By installing an auxiliary blower that can be switched to the lower blower, the air conditioning range can be changed appropriately depending on the number of passengers by switching the outlet of the auxiliary blower. By opening the front seat, an air curtain is formed between the front and rear of the vehicle, allowing air conditioning only for the front seats without impairing the driver's rear visibility, making it possible to drive energy-savingly.

In addition, by opening the rear air outlet, the accelerated wide harmonized air reaches the rear seats, and the harmonized air actively circulates within the passenger compartment, uniformly conditioning the air throughout the passenger compartment in a short period of time. I can do it.

Furthermore, since a quiet loss-flow fan is used as the blower of the auxiliary blower, the vehicle does not cause discomfort to the occupants due to noise.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the prior art, Fig. 2 is a cutaway perspective view of an auxiliary blower showing an embodiment of the present invention, Fig. 3 is an intermediate sectional view of the auxiliary blower, and Fig. 4 is only for the front seat side. FIG. 5 is an explanatory diagram for air conditioning the entire vehicle interior, and FIG. 6 is an intermediate sectional view of an auxiliary blower device showing another embodiment. 1...Front seat, 3, 3'...Blower case, 3B, 3B'...Suction port, 3D, 3D'.
... Rear air outlet, 3F. 3F'...Lower air outlet, 6...Cross flow fan, 7...Motor, 8...
Blower, 9,9'...Casing, 11.11
'... Wind direction switching means, 12... Indoor unit, 14.14'... Auxiliary air blower.

Claims (1)

[Scope of utility model registration request] A diagonally downward suction port is opened on the front of a horizontally long blower case that houses a cross-flow fan, and
A rear air outlet is opened in the rear face and a lower air outlet is opened in the lower face, and the blower case is equipped with a swingable casing or a wind direction switching means such as a damper for switching between the two secondary outlets, An auxiliary blower device for an air conditioner for an automobile, characterized in that it is arranged at the upper part of the rear of the front seat of a vehicle equipped with an indoor unit of the air conditioner in front of the front seat.