JPH0723290Y2 - Heater casing for automobile heating system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a heater casing for a vehicle heating system.

[Prior Art] An outline of an automobile heating system will be described with reference to FIG.

The vehicle heating system mainly comprises a blower unit 1 and a heater unit 2.

First, in the blower unit 1, a blower 4 is provided inside a casing 3 of the blower unit, and an outside air intake port 5 and an inside air intake port 6 are provided in the casing 3, and a switching damper 7 for switching between intake of outside air and inside air. Done by

Next, the heater unit 2 connected to the blower port 8 of the blower unit 1 will be described.

A heater core 10 is provided inside the casing 9 of the heater unit 2, and the amount of air sent from the blower 4 by the air mix door 11 passing through the heater core 10 and the amount of bypass are determined. An air mix chamber 12 is formed on the downstream side of the heater core 10, and a foot outlet 13 is connected to the air mix chamber 12. Also, the defroster outlet
14, a central air outlet 15, and a side ventilator air outlet 16 communicate with the air mix chamber 12, and these three air outlets are usually formed by a three-way branch box.

The air sucked by the blower 4 at the time of heating is guided by the air mix door 11 and passes through the heater core 10 to become warm air and is blown out from each of the air outlets 13, 14, 16 and the air outlets are selected by opening and closing the air outlets. It takes place at doors 17, 18 and 20.

A concrete structure of the conventional heater casing 9 is shown in FIGS.
This will be described with reference to the figure.

5 to 7, the same components as those shown in FIG. 4 are designated by the same reference numerals.

An air guide port on one side surface (left side surface in FIG. 5) of the casing body 21.
22 is formed, and the heater core 10 is provided on the downstream side of the air guide port 22 at the center of the air passage so as to partition the air passage. Heater core 10
Shafts 23a and 23b are rotatably provided at a pair of apical positions of
Air mix doors 11a and 11b are fixed to each shaft.
Each shaft 23a, 23b, and the lower end of the shaft 25 of the vent door 24 described later penetrates the casing main body 21 and projects, and the projecting ends are linked by a link mechanism 33 so as to interlock with each other, and an air mix by a control cable (not shown). Door 11a,
11b, the vent door 24 can be opened and closed. Air mix chamber 12 formed on the downstream side of the heater core 10.
Is provided with a defroster communication port 26 on the upper surface thereof, and a heater outlet communication port 27 is provided on the lower surface thereof.
It can be opened and closed by 8, 17 respectively.

The heater outlet connection port 27 is provided with a foot outlet duct 28, and the foot outlet duct 28 extends to the passenger seat side.
29 and an air outlet 30 provided on the driver side.

A ventilating communication port 31 is provided on the front wall (lower side in FIG. 5) of the casing body 21, and the ventilating communication port 31 is opened and closed by the vent door 24 described above.

A three-way branch box 32 is attached to the front wall of the casing body 21, and the three-way branch box 32 and the casing body 21 are communicated with each other by the ventilating connection port 31. The three-way branch box 32 has two central outlets 15a, 15b and a side ventilator outlet 16 which are open at the top. This central outlet 15a, 15b
An opening / closing door 19 is provided in the.

In Figure 6, Indicates the center position of the car.

In the above heater casing 9, the air mix door 11
It is assumed that a and 11b are in the illustrated state and the opening / closing door 17 is in the open state. Air sent from the air guide port 22 is passed through the heater core 10 to heat it. The warm air passes through the air mix chamber 12 and reaches the foot outlet duct 28 through the heater outlet connecting port 27, further blows out through the outlet 30 to warm the driver's feet, and blows out through the outlet 29 to warm the passenger seat passengers' feet.

[Problems to be Solved by the Invention] Since the heater core 10 is provided in the conventional heater casing 9 described above, the foot outlet duct 28 is provided at the side end of the lower surface, for example, the driver seat side. For this reason, the warm air from the foot outlet duct 28 is close to the driver's seat side and is sufficiently discharged, but does not reach far enough to the passenger seat side. Therefore,
As mentioned above, the air outlet 29 is projected to be as close as possible to the passenger seat side, but due to the problem of forming the foot outlet duct,
I can't make it too long. Further, since the air outlet 29 is provided so as not to interfere with the link mechanism 33, the height of the air outlet is low, and a preferable temperature distribution cannot be obtained.

[Means for Solving the Problems] The present invention has been made in view of the above circumstances, and divides the blast air into a central air outlet and a side ventilator air outlet on the front side of the casing body in which the heater core is built. In a heater casing of an automobile heating system, a three-way branch box is attached, and a foot outlet duct having an air outlet for blowing to the driver's side and an air outlet for blowing to the passenger's side is provided at the bottom of the casing body Between the branch box and the foot outlet duct, an air guide passage extending in the casing body horizontal direction is formed, and the air guide passage and the foot outlet duct are communicated with each other, at the driver seat side end of the air guide passage, An upper air outlet is provided above the air outlet on the driver's seat side and blows air to the driver's seat side, and is located above the air outlet on the passenger's seat side at the passenger seat side end of the air guide passage and is an assistant. Upper part that blows to the seat side It is characterized in that an air outlet is provided.

[Operation] The foot outlet duct is provided with an air outlet on the driver's seat side and the passenger seat side is provided with an air outlet on the passenger seat side, and the air guideway formed between the three-way branch box and the foot outlet duct is connected to the driver's seat. An upper air outlet is provided at the seat side end and an upper air outlet is provided at the passenger side end, so warm air is blown to the driver's side vertically from the upper air outlet and the air outlet in two vertical stages. Is
To the passenger's seat side, it is blown from the upper air outlet and the air outlet vertically in two steps vertically.In particular, the upper air outlet on the passenger seat side can be projected to the passenger seat side, and from the position closer to the passenger seat. It is possible to blow out warm air. Therefore, the entire feet of the driver and passengers in the passenger seat can be comfortably heated.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a view corresponding to FIG. 6 showing the conventional example, FIG. 2 is a view corresponding to FIG. 7 of the same, FIG. 3 is a perspective view, and the embodiment is shown in FIG. Description will be made in comparison with the one shown in the figure.

Since the structure of the casing body 21 is the same as the conventional one described above, the description thereof will be omitted.

The lower part of the three-way branch box 32 is bulged, and the bulging part and the space 35 in which the central outlets 15a and 15b and the side ventilator outlet 16 communicate with each other are partitioned by a partition wall 36, and the three-way branch box is provided below the space 35. 32 forms an air guide passage 34 extending in the horizontal direction.
The air duct 34 is an extension of the side walls 38, 39 of the three-way branch box 32 and the lower wall 40.
It is surrounded by the foot outlet duct 28 of the lower wall 40.
A portion facing the is cut away to form an inlet 41. An upper air outlet 42 is formed on the driver seat side (right side in FIG. 1) of the extension of the side wall 38, and an upper air outlet 43 is provided on the passenger seat side.

Front wall on the vehicle rear side (left side in FIG. 2) of the foot outlet duct 28
The upper part of 44 is bulged toward the rear side of the vehicle so that the bulged part 45 is aligned with the inlet 41. Thus, the air guide passage 34 and the inside of the foot outlet duct 28 are communicated with each other by the inlet 41.

The vent door 24 is closed so that the air mix doors 11a and 11b allow the wind to pass through the heater core 10 and the opening / closing door 17
When opened, the warm air that has passed through the heater core 10 flows into the foot outlet duct 28 through the heater outlet connection port 27.

Part of the warm air in the foot outlet duct 28 is the same as before.
9, the remaining warm air is blown out from the outlet 30 and enters the air guide passage 34 from the inlet 41 and is divided into left and right, respectively from the upper outlet 42 to the driver side and from the upper outlet 43 to the passenger side. Blown out.

As described above, in the present invention, the warm air is blown up and down in two steps to both the driver's seat side and the passenger's seat side, so that the feet of the driver and passenger's seat passenger are entirely heated. In particular, regarding heating on the passenger side, a comfortable heating state can be obtained because warm air is blown out at a position where the upper outlet 43 approaches the passenger seat.

Although the air guide passage 34 is integrally formed on the side of the three-way branch box 32 in the above embodiment, it may be integrally formed on the foot outlet duct 28 side, and various means are conceivable for forming the air guide passage 34. Of course you can get it.

[Advantages of the Invention] As described above, according to the present invention, warm air can be blown to the driver's seat side from the upper outlet and the outlet from the upper outlet in two vertical stages with a vertical width, and to the passenger's side. Can be blown vertically from the upper outlet and the upper outlet in a vertical direction with a width, and the temperature distribution of the driver's seat and passenger's seat during heating,
Particularly, the excellent effect that the temperature distribution in the passenger seat can be significantly improved is exhibited.

[Brief description of drawings]

FIG. 1 is a front view showing one embodiment of the present invention, FIG. 2 is a right side view of the same front, FIG. 3 is a partial perspective view of the same front, and FIG. 4 is a conceptual diagram showing a general structure of an automobile heating system. 5 is a plan view of a conventional example, FIG. 6 is a front view of the same, and FIG. 7 is a right side view of the same. 10 is a heater core, 21 is a casing body, 28 is a foot outlet duct, 29 is an outlet, 30 is an outlet, 32 is a three-way branch box, 34 is an air guide passage, 42 is an upper outlet, and 43 is an upper outlet. .

Claims (1)

[Scope of utility model registration request] 1. A three-way branch box for branching air into a central air outlet and a side ventilator air outlet is attached to the front side of a casing body having a heater core built therein, and the air is blown to the driver's seat side at the bottom of the casing body. In a heater casing of an automobile heating device having a foot outlet duct having an air outlet and an air outlet for blowing to the passenger seat side, in a heater casing of a vehicle heating device, an air guide path extending in the horizontal direction of the casing body between the three-way branch box and the foot outlet duct. And connecting the air duct to the foot outlet duct, and at the end of the air duct on the driver's seat side, an upper blower located above the air outlet on the driver's seat side and blowing to the driver's seat side. In addition to providing an outlet, at the passenger seat side end of the air guide passage, there is provided an upper blower outlet that is located above the passenger seat side air blower and blows air to the passenger seat side. Heater casing