JPS6233618Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a heater unit installed under the seat of an automobile, particularly a wagon or a small bus.

Conventionally, as disclosed in, for example, Japanese Utility Model Application Publication No. 57-24111, it has been known that an air conditioning unit is installed under the seat. The height of the heater unit installed under the seat is limited due to the location where it is installed, and the heater unit has a shape as shown in FIGS. 1 and 2, for example. In the conventional heater unit shown in FIGS. 1 and 2, a heater case 6 in which a heater core 5 is housed is provided at the right end of a blower case 2 in which a blower 3 is provided. The blower case 2 has an air intake port 4 on the upper surface, and the heater case 6 has a heater core 5 installed diagonally with the blower side lowered, and the lower surface side of the heater core 5 and the heater case 6 are connected to each other. The air outlet 8 for blowing out warm air is provided at the top, bottom, and right side of the room 7, and the hot air is blown out only to one side as shown by the arrow, and does not go to the blower side, resulting in a poor air conditioning feeling. had.

Therefore, the technical problem of this invention is to enable the hot air blown from the heater unit to be blown out without being biased.

Therefore, the gist of this invention is that a heater case 6 is provided on one side of a blower case 2 which has a vehicle interior air intake port 4 on its upper surface and houses a blower 1 that sucks vehicle interior air. A heater core 5 is installed diagonally within this heater case 6 with the blower side raised higher, and a wind direction changing chamber 9 is formed by the top plate of this heater core 5 and the heater case 6, and this wind direction changing chamber 9 includes: Both side wall surfaces 6b and 6c of the heater case 6 correspond to a direction perpendicular to the traveling direction of the wind sent by the blower 1.
Air outlets 11a and 11b are provided in the air outlet 11a and 11b, and the blowing direction of the hot air that has passed through the heater core 5 in the air direction changing chamber 9 is set to the air outlet 11a and 11b.
A guide 10 for changing the direction is provided on the rear wall surface 6a of the heater case 6, and
a and 11b are provided with large openings at opposite positions at a high position of the heater case 6, and a large opening is provided to a guide that changes direction in two directions, and a wind direction changing chamber consisting of the upper surface of the heater core and the heater case. By placing the heated air outlet at opposite positions, the direction of the hot air blown out can be controlled.
The above-mentioned problem can be achieved by distributing the air evenly around the heater case.

Examples of this invention will be described below with reference to the drawings.

In FIGS. 3 to 6, a blower 1 is housed in a blower case 2, rotated by a motor 3, and sucks air inside the car from a car air intake port 4 provided on the top surface of the blower case 2. It is sent to the heater core 5.

A heater case 6 housing a heater core 5 is integrally provided on the right side of the blower case 2, and pressurized cabin air drawn by the blower 1 is supplied into the heater case 6. The heater core 5 is installed diagonally with the blower side elevated, and the air supplied by the blower 1 passes through the heater core 5 and undergoes heat exchange to become warm air.
Wind direction changing chamber 9 consisting of the upper surface of the heater case 6 and the heater case 6
It is squirted inside. The wind direction changing chamber 9 is naturally located above the heater case 6, and inside it, on the side opposite to the blower, there are two
A guide 10 is formed which changes direction. In addition, as shown in FIGS. 3 and 5, air outlet ports 11a and 11b are provided on both sides of the heater case 6 in the direction perpendicular to the traveling direction of the air sent by the blower 1, as shown in FIGS. 3 and 5. Wall surface 6
b, 6b. Therefore, since the air outlets 11a and 11b open in the wind direction changing chamber 9, the air outlets 11a and 11b are naturally formed in the heater case 6 at a position higher than the bottom surface.

Both air outlets 11a and 11b are large and have an opening area that is more than twice the opening area of the heater core 5 on the blower side. Moreover, this outlet 11a, 1
A guide 12 is provided within 1b to determine the direction of the blowing air. Reference numeral 13 denotes mounting feet provided on the blower case 2 and the heater case 6.

In the above-mentioned configuration, when the blower 1 is rotated, the air inside the vehicle interior is sucked in through the interior air intake port 4, pressurized, and sent to the heater core 5, where the air is exchanged with heat in the heater core 5 while being changed upward. The heated air becomes warm air, blows upward as shown in FIG. 6, and flows into the wind direction changing chamber 9. The hot air blown out fills the chamber 9, and as shown in FIG. is blown out.

The wind direction changing chamber 9 has a certain volume, and the opening area of the blower ports 11a and 11b is about twice as large as the passage area of the heater core 5 on the blower side. The pressure component increases, making it easier to change hot air, and the hot air is blown out from the blower ports 11a and 11b not only toward the blower but also around the heater case 6 without being biased.

As described above, according to this invention, the opening area of both outlets is about twice as large as the passage area on the blower side, and the air direction changing room has a certain volume, so hot air can be flowed in the air direction changing room. As the dynamic pressure component decreases and the static pressure component increases, it becomes easier to change the hot air blowing direction, and the guide allows hot air to be blown in all directions without being biased, improving the air conditioning feeling. can be done.

Furthermore, since the air outlet is formed at a high position in the heater case, even if the air is blown horizontally to the floor surface, dust particles on the floor surface are rarely stirred up.

Furthermore, since it has an inclined heater core, the height can be kept low, making it easy to place it on the floor under the seat.

Furthermore, since the air inlet of the air blower is provided on the upper surface of the air blower case, there is an advantage that dirt and dust on the floor are not sucked in.

[Brief explanation of the drawing]

Figure 1 is a conventional plan view, Figure 2 is a side view of the same,
Figures 3 to 6 show this invention, with Figure 3 being a plan view, Figure 4 being a side view, Figure 5 being a cross-sectional view, and Figure 6 being a side view.
The figure is a sectional view taken along the line A-A in FIG. 4. DESCRIPTION OF SYMBOLS 1...Blower, 2...Blower case, 5...Heater core, 6...Heater case, 9...Wind direction change room, 10...Guide, 11a, 11b...Blower outlet.

Claims (1)

[Scope of utility model registration request] A heater case 6 is provided on one side of a blower case 2 which has a vehicle interior air intake port 4 on its upper surface and houses a blower 1 that sucks vehicle interior air. The top plate of the heater core 5 and the heater case 6 form a wind direction changing chamber 9.
is formed, and in this wind direction changing chamber 9, both side wall surfaces 6 of the heater case 6 corresponding to a direction perpendicular to the traveling direction of the wind sent by the blower 1 are formed.
B, 6c are provided with air outlets 11a, 11b, and the blowing direction of the warm air that has passed through the heater core 5 in the wind direction changing chamber 9 is set to both the air outlets 11a, 11b.
11b is provided on the rear wall surface 6a of the heater case 6, and the air outlet ports 11a and 11b are provided at high positions of the heater case 6 with large openings facing each other. Characteristic heater unit.