JP3313954B2 - Rear heater unit for vehicle rear heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear heater unit for a vehicle rear heater.

[0002]

2. Description of the Related Art Generally, as shown in FIG. 3, a conventional rear heater for a vehicle includes a rear heater unit 2 installed under a front seat (seat) 1 and a hot air from the rear heater unit 2 provided in the rear seat. 3 and a heat control panel 5 mounted on the rear heater duct 4 for controlling the temperature of hot air from the rear heater unit 2. I have.

The rear heater unit 2 guides air sent by a blower fan 6 for blowing air to a heater core 7 connected to a hot water supply pipe 7b for supplying hot water and a hot water discharge pipe 7a for discharging hot water. Heating creates warm air.

[0004] The heat control panel 5 is for adjusting the opening of the air mix door of the rear heater unit 2, and as shown in FIG. 3, the control cable 8 connected to the air mix door is connected to the heat control panel 5. The outer cable 8a is fixed to the clamp 9 of the control panel main body 5a, and the inner cable 8b of the control cable 8 is connected to the operating portion 5c of the adjustment lever 5b pivotally attached to the control panel main body 5a. With a plurality of (three in the example in the figure) fastening bosses 10 projecting from the upper surface, a plurality of fastening holes 11 of the control panel body 5a are aligned with a fastening member 12 such as a tapping screw. By tightening, the control panel body 5a is fixed on the rear heater duct 4, and the tip of the adjustment lever 5b is And allowed to protrude from the slit 15 of the heat control plate 14 assembled to the rear console 13 so as to fit the control knob 16 at its distal end. In the drawing, reference numeral 17 denotes a vehicle-side harness for supplying electric power to the rear heater unit 2, reference numeral 18 denotes a blower switch for turning on / off the blower fan 6 of the rear heater unit 2, and reference numeral 19 denotes a lower front portion of the front seat 1 on a floor 20 of the vehicle. It is a seat cloth of a strength member provided in a position extending in the width direction of the vehicle.

As shown in FIGS. 3 and 5, the rear heater unit 2 is disposed at the rear of the seat cloth 19 on the floor 20, and has a front end provided on a fixed bracket 21 provided on the left and right sides of the upper surface of the blower fan 6. 22, the sheet cloth 1 is fastened by a fastening member 23 such as a tapping screw.
The rear end is fixed to the floor 20 by a fastening member 25 such as a tapping screw via a fixing bracket 24. As shown in FIG. 3, the hot water supply pipe 7b and the hot water discharge pipe 7a are guided to a lower side of the floor 20 via a mounting lid 27 through a through hole 26 formed in the floor 20. .

The rear heater unit 2 is shown in FIGS.
As shown in FIG. 5, the rotation of the blower fan 6 provided in the heater case 28 so as to rotate substantially horizontally causes the rotation shaft 3 of the blower fan 6 to pass through the air inlet 29 formed at the upper part.
The blower fan 6 is configured to compress the air sucked in parallel with the air blower and discharge the pressurized air 31 to the outside in the radial direction. By supplying hot water to the heater core 7 through the hot water supply pipe 7a, heat exchange is performed and the hot air 32 that has become hot
From the warm air outlet 33 to the rear heater duct 4.

Further, a conventional rear heater unit 2 is shown in FIG.
As shown in FIG. 5, a flat heater core 7 is provided upright, and is obliquely provided so as to have a required inclination angle with respect to a tangent line of the blower fan 6 in plan view, and is close to the blower fan 6. An air mix door 35 is rotatably provided on a rotation shaft 34 provided at a position along one side 7c.
The inner cable 8b of the control cable 8 is connected to a lever 36 provided outside the control cable 4.

In the above configuration, the air mix door 35
As shown in FIG. 3, by adjusting the opening degree of the pressurized air 31a guided to the heater core 7 side into which the hot water is introduced.
Pressurized air 31 guided to the bypass side of the heater core 7
By distributing the ratio with b at a desired ratio, warm air 32 at a temperature required by the occupant is created.

[0009]

However, the plate-like heater core 7 provided in the conventional rear heater unit 2 has a disadvantage.
, So that it is provided vertically, FIG.
As shown in FIG. 5, the height H ₁ of the heater case 28 in the portion where the heater core 7 is provided becomes large, so that when the heater case 28 is disposed within the space between the front seat 1 and the floor 20, Although the shape of the floor 20 needs to be largely recessed downward, there is a limit to the shape of the recess 20. Therefore, a floor opening 37 is provided below the heater core 7 of the floor 20 and the floor opening 37 is formed in the lower part. A separate closing lid 38 that can be opened and closed from above is provided, which has a problem that the configuration of the floor 20 is complicated.

The height H of the rear heater unit 2
_{Since 1} is large, as shown in FIG. 5, the rear heater unit 2 protrudes from the foot of the rear seat 3,
Since the foot space of the rear seat 3 is reduced, there is a problem that the sitting comfort of the rear seat 3 is deteriorated.

In view of such circumstances, the present invention provides a rear heater unit for a vehicle rear heater which can be easily installed at a lower portion of a front seat by reducing the height without suppressing the performance of the rear heater unit. What you want to do.

[0012]

SUMMARY OF THE INVENTION The present invention provides a blower fan which rotates substantially horizontally, compresses air taken in from an axial direction, and discharges pressurized air radially outward. A rear heater unit disposed below the seat including a flat heater core disposed on the outer rear seat side and exchanging heat of pressurized air from the blower fan with hot water; and hot air from the rear heater unit. And a rear heater unit for a vehicle rear heater having a rear heater duct for guiding the heater core to the rear seat side, the upper end of the heater core in the front-rear direction from a position facing the pressurized air from the blower fan. Blouff
A rear heater unit for a rear heater for a vehicle, wherein the rear heater unit is inclined in a direction in which the rear heater is tilted toward the fan side .

According to the above means, the following effects can be obtained.

Since the heater core provided in the rear heater unit is provided at a required angle in the front-rear direction from the position facing the pressurized air from the blower fan, the performance of the rear heater unit can be reduced. The height of the rear heater unit can be reduced, so that the rear heater unit can be easily arranged between the front seat and the floor only by forming a slight recess in the floor.

Further, by inclining the upper end of the heater core so as to be inclined toward the blower fan, the rear heater unit can be prevented from protruding from the foot of the rear seat, and the sitting comfort of the rear seat can be improved.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show an example of an embodiment of the present invention. In the drawings, portions denoted by the same reference numerals as those in FIGS. 3 to 5 represent the same components.

The feature of this embodiment is that, as shown in FIGS. 1 and 2, a plate-shaped heater core 39 provided radially outside the blower fan 6 of the rear heater unit 2 is provided.
From the position facing the pressurized air 31 from the blower fan 6 at a required angle in the front-rear direction.

In the illustrated case, the upper end of the heater core 39 approaches the blower fan 6 and the lower end is inclined away from the blower fan 6.
A bypass passage 40 is formed between the lower end of the heater case 28 and the lower portion of the heater case 28.

A rotating shaft 41 is provided horizontally below the lower end of the heater core 39 so that the rotating shaft 41 can rotate between a position covering the lower surface of the heater core 39 and a fully open position. The inner cable 8b of the control cable 8 shown in FIG. 3 is connected to a lever 43 attached to the rotating shaft 41. In the drawing, reference numeral 44 denotes a recess formed at a small depth on the floor 20 for installing the rear heater unit 2.

As described above, the heater core 39 provided in the rear heater unit 2 is provided so as to be inclined at a required angle in the front-rear direction from the position facing the pressurized air 31 from the blower fan 6. The height of the rear heater unit 2 can be reduced as H ₂ without suppressing the performance of the heater unit 2, and therefore the floor 2
The rear heater unit 2 can be easily arranged between the front seat 1 and the floor 20 only by forming a slight recess 44 in the zero.

Further, by inclining the upper end of the heater core 39 to the blower fan 6 side, the inclination of the upper surface of the rear heater unit 2 on the rear seat 3 side is increased, and the rear heater unit 2 It is possible to suppress the protrusion and improve the sitting comfort of the rear seat 3.

[0023]

As described above, according to the rear heater unit of the vehicle rear heater of the present invention, the heater core provided in the rear heater unit is moved in the front-rear direction from the position facing the pressurized air from the blower fan. Since the rear heater unit is provided at a required angle, the height of the rear heater unit can be reduced without suppressing the performance of the rear heater unit. The rear heater unit can be easily arranged between the floor and the floor.

Further, by inclining the upper end of the heater core so as to be inclined toward the blower fan, the inclination of the upper surface of the rear heater unit on the rear seat side can be increased, so that the rear heater unit protrudes from the foot of the rear seat. It is possible to provide an excellent effect that the seating comfort of the rear seat can be improved while suppressing the pressure.

[Brief description of the drawings]

FIG. 1 is a side view of a main part showing an example of an embodiment of the present invention.

FIG. 2 is a perspective view of an essential part of a vehicle according to an embodiment of the present invention, as viewed from the right rear side.

FIG. 3 is an overall schematic perspective view of a conventional example from the right rear of the vehicle.

FIG. 4 is a perspective view of a main part of a conventional example viewed from the rear right of the vehicle.

FIG. 5 is a side view of a main part of a conventional example.

[Explanation of symbols]

 Reference Signs List 1 front seat (seat) 2 rear heater unit 3 rear seat 4 rear heater duct 6 blower fan 31 pressurized air 39 heater core

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-168516 (JP, A) JP-A-2-5311 (JP, U) JP-A-62-149415 (JP, U) JP-A-5-149415 76814 (JP, U) Shokai 62-72205 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B60H 1/08 611 B60H 1/00 102

Claims (1)

(57) [Claims] 1. A blower fan which rotates substantially horizontally, compresses air taken in from an axial direction, and discharges pressurized air radially outward, and a rear seat radially outward of the blower fan.
A rear heater unit disposed below the seat with a flat heater core disposed on the side and exchanging heat of pressurized air from the blower fan with hot water, and hot air from the rear heater unit to the rear seat side. In a rear heater unit of a vehicle rear heater having a rear heater duct for guiding, a heater core provided in the rear heater unit is moved in a front-rear direction from a position directly facing pressurized air from a blower fan.
A rear heater unit for a vehicle rear heater, wherein an upper end of the heater core is inclined in a direction in which the upper end of the heater core is inclined toward the blower fan .