JPS6246567Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an air conditioner for a vehicle.

Conventionally, light vans and the like equipped with folding seats at the rear have been provided with a heating unit on the vehicle body floor below the folding rear seats in order to efficiently heat the rear of the cabin.

However, with this conventional heating unit installation method, there is a problem that the heating unit gets in the way of the occupants' legs.In addition, when the rear seats are folded and used as a luggage compartment, the heating unit is installed on the vehicle floor. In order to prevent the octopus heating unit from getting in the way and from being damaged by luggage, it is necessary to install a protector on the heating unit.

The present invention is an attempt to solve these problems, and aims to provide a vehicle air conditioning system that does not interfere with passengers and can be installed so as not to interfere with luggage loading. shall be.

For this reason, the vehicle air conditioner of the present invention has a recess provided in the vehicle body floor, a base plate provided to cover the recess, and a base plate that is installed upright within the recess and extends the recess toward its outer periphery. an annular heat exchanger that is divided into a first chamber formed on the inner circumferential side thereof and a second chamber formed on the inner circumferential side of the annular heat exchanger; the first chamber communicates with the vehicle interior, and the second chamber communicates with the vehicle interior; first and second openings respectively formed in the base plate, and air flowing into the recess from either the first opening or the second opening passes through the heat exchanger and then passes through the heat exchanger. and a fan disposed in the second chamber to flow into the vehicle interior through the opening of the fan.
The present invention is characterized in that it includes a cover that is formed with an air outlet that communicates with the other opening and is rotatably supported on the upper surface of the base plate so as to be substantially flush with the vehicle body floor.

Hereinafter, a vehicle air conditioner as an embodiment of the present invention will be explained with reference to the drawings. FIG. 1 is a plan view thereof, FIG. 2 is a sectional view taken along the - arrow line in FIG. 1, and FIG. It is a sectional view taken along the - arrow line in the figure, and a recess 1a is formed in the vehicle body floor 1.

A base plate 3 is provided so as to be located in the upper space of the recess 1a, and the outer peripheral edge of the base plate 3 is fixed to the vehicle body floor 1 side at a support portion 4 with bolts and nuts.

Furthermore, four elongated air introduction ports 6 are formed along the circumferential direction on the outer peripheral portion of the base plate 3.

Furthermore, an opening 3a is formed in the center of the base plate 3, and a bracket 5 is attached integrally with the base plate 3 so as to straddle this opening 3a.
A cover 12 is attached that can rotate around the center.

Note that a foldable handle 16 is attached to the top surface of this cover 12.

Further, this cover 12 is arranged so as to be substantially flush with the vehicle body floor 1.

The outer periphery of the cover 12 is notched for approximately 180°, and the remaining 180° is not notched.
A felt member 14 is attached to the lower side of the outer periphery of the air inlet 14 to partially close the four air introduction ports 6.

Further, on the half surface of the cover 12 on the felt member attachment side, inside the attachment part of the felt member 14,
Two elongated air outlets 15 are formed.

Note that each air outlet 15 is different from this air outlet 1.
Using the ventilation passage 5a formed near 5 as a guide,
It has a nozzle shape that allows the wind to blow over long distances.

As a result, an air adjustment duct 18 is provided in the recess 1a that extends from the air inlet 6 through the opening 3a of the base plate 3 in the recess 1a to the air outlet 15 to the vehicle interior.

By the way, an annular heater core 7 as a heat exchanger is attached to the lower side of the edge of the opening 3a of the base plate 3.

The heater core 7 is installed upright in the recess 1a, and divides the recess 1a into a first chamber 18a formed on the outer circumferential side of the heater core 7 itself, and a second chamber 18b formed on the inner circumferential side thereof. It is divided into two parts. That is, the air enters the first chamber 18a from the vehicle compartment through the air inlet 6 (first opening), further passes through the heater core 7, enters the second chamber 18b, and then enters the opening 3a (second opening) and the second chamber 18b. An air flow path passing through the air outlet 15 and heading toward the vehicle interior is now formed.

A partition/support plate 8 is attached to the lower side of the heater core 7, and a motor 9 with an air drive fan 10 is mounted on the upper surface of the central portion of the plate 8 via a vibration isolating member 11. installed.

As a result, the heater core 7 and the fan 10
This means that it is installed in the middle of the duct 18 within the recess 1a.

In each figure, the symbol 2 indicates a carpet laid on the vehicle floor 1, 7a indicates a hot water inlet pipe, 7b indicates a hot water outlet pipe, and 17 indicates a grommet interposed between the pipes 7a, 7b and the wall of the vehicle floor recess 1a for the purpose of waterproofing and preventing wind leakage.

With the above-described configuration, in order to heat the rear of the vehicle interior, a switch with an instrument panel in the vehicle interior is operated to supply hot water to the heater core 7, and at the same time, drive the motor 9 to turn the fan 10.

As a result, the cold air inside the vehicle is transferred from the air inlet 6 to the recess 1a, as shown by arrow a in FIG.
After being introduced into the interior, it is heated by the heater core 7, and then passes through the opening 3a of the base plate 3.
This heat exchange air is sent as shown by arrow b in FIG. 3, and this adjusted air is further blown out from the air outlet 15 into the vehicle interior as shown by arrow c in FIG.

At this time, since the air outlet 15 is formed in a nozzle shape, the warm air can be blown far away in combination with the effect of the ventilation passage 5a.

Furthermore, since the air inlet 6 and the air outlet 15 are located at symmetrical positions with respect to the axis 13, the introduced air and the blown air do not mix, and therefore the air flow can be made smooth. , This allows for efficient heating.

Furthermore, if you want to change the air blowing direction, raise the handle 16 as shown by the chain line in FIG.
Simply rotate the cover 12 until 5 is at the desired position.

Note that when the cover 12 is rotated and adjusted in this way, the air inlets 6 that the cover 12 closes change, but no matter what position the cover 12 is in, the number of air inlets 6 is 4. Since the area corresponding to half of the combined total area is designed to be open, the amount of air flowing does not change depending on the position of the cover 12.

Further, no matter where the cover 12 is located, the air inlet 6 and the air outlet 15 are aligned with the shaft 1.
Due to the symmetrical position with respect to 3, a smooth air flow can be achieved at all times.

Note that the recess 1a is configured to have a concave shape that allows air to flow uniformly throughout the heater core 7 in consideration of air resistance.

It is also possible to provide a heat insulating member on the inner surface of this recess 1a.

Furthermore, the cover 12 may be of a fixed type,
Further, it is also possible to provide the air inlet and the air outlet at different positions from those in the embodiment.

Note that a cooler core can also be used as the heat exchanger.

Alternatively, the fan 10 may be rotated so that the air flows a, b, and c in FIG. 3 are directed in opposite directions.

As described above in detail, the vehicle air conditioner of the present invention provides the following effects and advantages.

(1) An opening that communicates with the vehicle interior is formed at the top of the recess where the heat exchanger (heater core) and fan are placed, and the area around the fan and the air outlet to the vehicle interior are in direct communication. Therefore, the device itself is compact and easy to assemble, and heat loss during air conditioning can be minimized.

(2) Since the position of the opening that directly communicates with the passenger compartment changes by rotating the cover, the direction of air flow can be adjusted as appropriate, which has the advantage of providing comfortable air conditioning.

[Brief explanation of the drawing]

The figures show a vehicle air conditioner as an embodiment of the present invention, in which Fig. 1 is a plan view thereof, Fig. 2 is a sectional view taken along the - arrow line in Fig. 1, and Fig. 3 is a sectional view of the
It is a sectional view along the - arrow line of a figure. 1... Vehicle floor, 1a... Recess, 2... Carpet, 3... Base plate, 3a... Opening,
4... Support part, 5... Bracket, 5a... Ventilation path, 6... Air inlet, 7... Heater core as a heat exchanger, 7a... Hot water inlet pipe, 7b...
Hot water outlet pipe, 8...Plate, 9...Motor, 10...Air drive fan, 11...Vibration isolation member, 12...Cover, 13...Shaft, 14...Felt member, 15...Air blower Exit, 16...handle, 17...grommet, 18...air adjustment duct, 18a...first chamber, 18b...second chamber.

Claims (1)

[Scope of utility model registration request] A recess provided in the vehicle body floor, a base plate provided to cover the recess, and a first base plate erected within the recess and formed on the outer circumferential side of the recess.
an annular heat exchanger divided into a chamber and a second chamber formed on the inner circumferential side of the annular heat exchanger; formed on the base plate to communicate the first chamber with the casing and the second chamber with the casing; air flowing into the recess from either the first or second opening passes through the heat exchanger and enters the vehicle interior from the other opening. A fan is disposed in the second chamber to discharge air, and an air outlet communicating with the other opening is formed so as to be rotatable on the upper surface of the base plate and substantially flush with the vehicle body floor. An air conditioner for a vehicle, comprising a cover supported by a cover.