JP2002321519A - Heating apparatus of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating apparatus which effectively uses a rear heater which is less frequently used so that the rear heater can give an additional heating power for heating passengers in the first row of rear seats to a heating power of a front heater which is more frequently used but has an insufficient heating power. SOLUTION: An opening part 2134 of the rear end of a front heater duct 21 of a conventionally provided front heater 20 and a connection inlet 36 of an additional duct 85 added to a rear heater 30 are connected to a front feed port 41 and a rear feed port 42 of a connection duct 40, air outlets of which are separated by diaphragms, respectively, thereby enabling warm air from the front heater 20 and warm air from the rear heater 30 to be sent from the same position to the feet of the passengers in the first row 13 of rear seats.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating system for a vehicle, and more particularly, to an RV (recreational vehicle).
Like a car, it has a total of three rows of front seats and two rear seats,
The present invention relates to a vehicle heating device that supplements the heating capability of a front heater of a vehicle having a front heater and a rear heater.

[0002]

2. Description of the Related Art A heating device, ie, a heater, is installed in a vehicle as part of an air conditioner. The heater is provided with an air outlet at the end of the duct so as to blow warm air toward the feet of the occupant. And the vehicle is R
In a car such as a V car, which has a large room and three rows of seats, heaters are installed before and after,
In many cases, the front heater blows warm air to the feet and upper body of the front passenger and the feet of the first row passengers, and the rear heater heats the feet of the second row passengers. .

However, since the front heater heats the front-seat passenger and the rear-seat first-row passenger, the rear-seat first-row passenger is heated by warm air blown out from the air outlet separated from the front heater body. The heating of the elderly is not enough. That is, there is a problem that the heating capacity of the front heater is not sufficient. The above problem can be solved by increasing the heating capacity of the front heater.However, if there are no passengers in the rear seats and only the front seats have passengers, the heating for the front passengers may be too good. However, there is a problem that the cost of the heater is increased. In addition, the rear heater that heats the occupants in the second row of the rear seats has a problem that the frequency of use of the rear heaters is low because the frequency of boarding the passengers in the second row of the rear seats is low.

More specifically, as shown in FIG.
The V-vehicle is a popular 7- to 8-passenger car equipped with three rows of seats: front seat 12, rear seat first row 13, and rear seat second row 14, because of its convenience and cost performance. are doing. The heater used is the instrument panel 1 of the automobile.
1, an air outlet opening from the front heater duct 521 connected to the air outlet of the front heater 520 installed below the front seat 12 to the rear of the lower part of the front seat 12 through the space between the floor F of the automobile and the lower part of the front seat 12. Warm air is blown from 522 toward the feet of the occupant in the first row 13 of the rear seat.

As shown in FIG. 4, a rear heater 530 for heating the occupants in the second row 14 of the rear seat is provided in a rear heater unit 539 including a heat exchanger and a fan provided in a trim in a side room of the automobile. It is configured to blow warm air from the connected rear heater duct 531 to the feet of the occupants in the rear second row 14 from the air outlet 532 disposed between the lower part of the rear first row 13 and the floor. Have been.

[0006]

However, since the RV vehicle has a large room, the warm air easily spreads in the room, and the warm air from the front heater 520 alone sufficiently warms the feet of the occupants in the rear first row 13. Is difficult. In addition, although there is not much opportunity to get in the second row 14 of the rear seat, that is, the seat is almost fully occupied, there is a problem that the independent rear heater 530 is installed and its use frequency is low.

In order to solve such a problem, the present invention makes effective use of a rear heater which is used less frequently, and uses a front heater which is frequently used but has insufficient heating capacity. It is an object of the present invention to provide a heating device capable of supplementing a heating capacity for a passenger.

[0008]

SUMMARY OF THE INVENTION A vehicle heating apparatus according to the present invention is provided in a vehicle having three rows of seats, one in front and two in back, and is installed at the front of the vehicle cabin and at least in front. A front heater having an air outlet directed toward the feet of the occupant of the seat and the first row of the rear seats; and an air blower installed near the rear seats and directed toward the feet of the second row passengers. A rear heater provided with an outlet, wherein the rear heater is disposed adjacent to an air outlet toward the foot of a passenger in a rear seat first row of the front heater. It is characterized by adding and arranging an air outlet toward the passenger's feet. Therefore, when the heating capacity for the passenger in the first row of the rear seat is insufficient, it is possible to replenish by utilizing the capacity of the rear heater, and to improve the performance at low cost without increasing the performance of the front heater. it can.

Further, a heating device for an automobile according to the present invention comprises:
The air outlet toward the feet of the occupant in the first row of the rear seats added to the rear heater separates the air outlet of the front heater and the air outlet of the rear heater by a partition wall, so that the warm air from the front heater and the rear heater are separated from each other. And blow out the warm air individually. Therefore, at the air outlet, the warm air outlet from the front heater and the warm air outlet from the rear heater are isolated and the warm air does not mix with each other, so that the warm air does not flow backward from one duct to the other duct. Thus, the heating capacity of the first row of the rear seat can be surely improved.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vehicle heating system according to an embodiment of the present invention. The vehicle heating device according to the present embodiment is a vehicle RV.
It is provided on the car. Here, FIG. 1 is a diagram showing an arrangement of a front heater and a rear heater, and FIG.
FIG. 2 is an enlarged disassembled view of a part II in FIG. 1. FIG. 3 is a longitudinal sectional view thereof.

(Configuration) The configuration of the vehicle heating device of the present invention will be described. The heating device of the vehicle is attached to a front heater 20 having a front heater duct 21 for heating the feet of the occupant in the front seat 12 and the occupant in the first row 13 of the rear seat, and the interior side wall of the automobile as in the related art. The rear heater 30 has a rear heater duct 31 for heating the feet of the occupants in the second row 14 (not shown) of the rear seat. The main requirement of the present invention is a duct 35 extending from the rear heater 30 to the lower surface of the front seat 12. And the additional duct 35 is connected to the front heater duct 21 connected to the front heater 20 and disposed on the lower surface of the front seat, so that the warm air generated by the front heater 20 and the warm air generated by the rear heater 30 allow the rear seat to be heated. This is to improve the heating capacity at the feet of the passengers in the first row 13.

First, the front heater 20 includes a front heater main body and a front heater duct 21 connected to an air outlet of the front heater, and is installed at a lower central portion of the instrument panel 11 of the automobile. The front heater duct 21 is provided with a communicating portion 211 having a thick rectangular cross section provided at the front upper portion and a vertical tube portion 2 having a flat cross section descending from the communicating portion 211 to the left and right in an inverted V-shape.
12, where the vertical pipe portion 212 abuts on the floor surface F of the automobile, bends so as to spread left and right in parallel with the floor surface F, extends rearward along the floor surface F, and extends under the front seat 12. And a horizontal tube portion 213 that opens rearward. The latter half of this horizontal tube part 213 is a space between the floor surface F and the lower surface of the front seat 12,
An upper horizontal pipe portion 2133 rises from the lower horizontal pipe portion 2131 along the floor F to the lower surface of the front seat via the inclined portion 2132. In the heating device according to the present embodiment, the inclined portion 2132 of the horizontal tube portion 213 is cut in the middle, and a connection duct 40 (described later) is formed in the opening 2134 having a flat cross section.
Are connected at one end.

On the other hand, the rear heater 30 is, as in the prior art,
A rear heater unit 39 disposed on the inner surface of the side wall of the vehicle,
A vertical tube section 311 having a vertically flat cross section extending from the rear heater unit 39 to the rear of the vehicle along the inner surface of the side wall;
A horizontal tube portion 312 having a horizontally flat cross section extending from the vertical tube portion 311 in the left-right direction along the floor F of the vehicle.
The horizontal tube portion 312 is formed between the lower surface of the first row 13 of the rear seat and the floor F of the vehicle so as to heat the feet of the occupants of the second row 14 of the rear seat. An outlet 32 is provided therebetween. That is, the vertical tube portion 311 and the horizontal tube portion 312 have the same configuration as the conventional one.

In the present embodiment, which is a feature of the present invention, another duct 35 bent downward in the vehicle width direction so as to crawl on the vehicle floor F from the front of the fan of the rear heater unit 39 downward. In addition, this additional duct 35
Is connected to a rear heater unit 39, and is connected to a connection port 36 provided in the middle of the additional duct 35 and a connection duct 40 connected to the front heater duct 21.

As shown in detail in FIGS. 2 and 3, the connection duct 40 has a front section bent in a laterally oblique shape in a side cross section, and the front heater 41 described above is formed by a front inlet 41 at the front end of the rectangular shape. The duct 21 is connected so as to cover an opening 2134 having a flat cross section at the tip of the inclined portion 2132 of the horizontal tube portion 213 of the duct 21.

The flat portion of the connection duct 40 is provided with a rear inlet port 42 which opens downward on the lower surface thereof, and the connection port 36 of the additional duct 35 connected to the above-described rear heater unit 39 is connected to the rear inlet port 42. At the same time, the cross section of the plane portion is vertically divided by a partition wall 45, the upper portion thereof is configured as a front outlet 43 and communicates with the front heater duct 21, and the lower portion thereof is formed as a rear outlet 44 to the additional duct 35. It is configured to communicate.

The rear heater unit 39 of the additional duct 35
As shown in FIG. 1, an air outlet is provided so as to open above the other air outlet 22 of the front heater duct 21 at an end opposite to the connection end with the air outlet. The connection duct 40 may also be applied.

(Operation) Next, the operation of the heating apparatus according to the present embodiment will be described. First, when there is no passenger in the first row 13 and the second row 14 of the rear seat, and there is a passenger only in the front seat 12, the front heater 20 is operated and the warm air reaches the passenger in the front seat 12. The warm air is blown out from the air outlet of the front heater duct 21 as described above. At this time, rear seat 1
Even if there is no occupant in the row 13, the connection duct 40
The warm air is blown out from the front outlet 43.
That is, when the front heater 20 is operated, the front seat 1
The warm air blows out to the feet of the occupant of the second row and the passengers of the first row 13 of the rear seats. In particular, the feet of the occupants of the first row 13 of the rear seats flow from the front outlet 43 above the connection duct 40. Warm air will blow out.

Next, when the occupant is also in the first row 13 of the rear seat, the connection duct 40 by the front heater 20 is used.
Just the warm air from the front outlet 43 above the rear seat 1
If the passengers in row 13 do not have enough heating at the feet, even if there are no passengers in the second row 14 in the rear seat, the rear heater 30 is operated to release warm air from the additional duct 35 of the rear heater 30 to the connection duct 40. The air is blown out from the lower rear air outlet 44 to blow out the warm air from the front heater 20 of the upper front air outlet 43 of the upper part of the connection duct 40 and the warm air from the rear heater 30 of the lower rear air outlet 44, thereby providing heating performance. Improve.

Further, when a passenger is also present in the second row 14 of the rear seat, both the front heater 20 and the rear heater 30 are operated in the same manner as described above, and the rear heater duct 31 originally provided by the rear heater 30 is used. Warm air is blown to the feet of the passengers in the second row 14 of the rear seats to heat the passengers. In this case, rear seat 2
The heating capacity for the passengers in the row 14 is about 30% of the total air volume in the ventilation of warm air to the passengers in the first row 13 of the rear seat by the additional duct 35 to the rear heater 30 and the rear seat 2 Although the airflow to the occupants in row 14 is about 70%, the heating capacity of the entire vehicle cabin does not change, so that the capacity does not decrease.

As described above, the heating device according to the present embodiment
The opening 2134 at the rear end of the front heater duct 21 of the conventionally installed front heater 20 and the connection port 36 of the additional duct 35 added to the rear heater 30 are connected to the connection duct 40 in which the air outlet is separated by a partition. Connected to the front inlet 41 and the rear inlet 42 respectively,
Since the warm air can be blown from the same place to the feet of the passenger in the first row 13 of the rear seat, the surplus heating capacity of the rear heater 30 can be used by the inexpensive connection duct 40,
It has become possible to provide an easy-to-use heating device that increases the heating capacity at the feet of the occupant in the first row 13 of the rear seats.

It should be noted that the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention. For example, in the above embodiment,
The air supply to the additional duct 35 of the rear heater 30 is inevitably performed when the rear heater 30 is operated. However, the air supply is not limited to this, and a switching valve or the like may be provided in the middle to turn on and off the air supply as necessary. You may make it possible.
Further, the connection duct 40 has been described as being applied only to the right side of the front heater duct 21, but may be applied to both the left and right sides.

[0023]

The present invention is provided in a vehicle having one row of front seats and two rows of rear seats, that is, a total of three rows. A front heater having an air outlet directed toward the feet of the row passengers,
A rear heater provided near the rear seat and provided with an air outlet directed toward the feet of the occupant in the second row of rear seats, wherein the occupant in the first row of rear seats of the front heater is provided. The rear heater is provided with an air outlet directed toward the feet of the first row of rear seats adjacent to the air outlet directed toward the feet of the rear seat. Not only from the front heater, but also from the rear heater to the feet of the passengers in the first row of the rear seats, thereby eliminating the need for a new heater for the passengers in the first row of the rear seats, and at low cost. The ability can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing an arrangement of a front heater and a rear heater according to one embodiment of the present invention.

FIG. 2 is an enlarged exploded view of a part II in FIG. 1;

FIG. 3 is a longitudinal sectional view thereof.

FIG. 4 is a perspective view showing an arrangement of a front heater, a rear heater, and a seat in a room of a conventional RV vehicle.

[Explanation of symbols]

 12 Front Seat 13 Rear Seat 1st Row 14 Rear Seat 2nd Row 20 Front Heater 21 Front Heater Duct 30 Rear Heater 31 Rear Heater Duct 35 Additional Duct 40 Connection Duct 43,44 Air Outlet 45 Partition Wall

Claims (2)

[Claims] 1. A vehicle having a total of three rows of seats, a front row and a rear row, is provided in a vehicle having a total of three rows. A heating device for a vehicle, comprising: a front heater provided with an air outlet directed toward the feet of a passenger, and a rear heater provided near the rear seat and provided with an air outlet directed toward the feet of the occupant in the second row of rear seats. The rear heater is further provided with an air outlet toward the foot of the first row passenger in the rear heater, adjacent to the air outlet toward the foot of the rear passenger first row passenger. A heating device for a vehicle, comprising: 2. The heating device for a vehicle according to claim 1, wherein an air outlet toward the foot of a passenger in a first row of rear seats added to the rear heater has an air outlet of a front heater and an air outlet of a rear heater. A heating device for a vehicle, wherein an outlet is separated by a partition so that warm air from a front heater and warm air from a rear heater are individually blown out.