JPS608105A - Automobile's air conditioner - Google Patents

Abstract

PURPOSE:To prevent moisture from collecting on a glass and improve the heating effect in an air conditioner equipped with a heating unit by taking in inside and outside airs on the windward side via an air chamber and electing air from duct-shaped passages leeward via respective heater's heat-exchangers. CONSTITUTION:By turning a double-shaft motor 33, fans 31 and 32 induce inside and outside airs 22 and 21, respectively. If a temperature control lever 52 is set to the maximum heating position, for example, air mixing dampers 37 and 38 take the position corresponding to said maximum position, namely, are fully opened to carry the entire air to a heater 35. The air is then heated while passing through separated heating units 35A and 35B and thereafter sent toward a defroster supply opening 24 and a ventilation supply opening 25. By turning a mode change-over lever 54, operation mode is changed variously and in addition, by performing combination operation of each of dampers 41 to 43, air is conditioned in various modes, whereby preventing both collection of moisture on window glasses and reduction in heating effect.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air conditioner for a vehicle equipped with a heating device.

When heating with an air conditioner, the air inside the vehicle (inside air)
When using the so-called inside air mode, in which air is sucked in, heated by a heating heat exchanger (heater A), and then blown out into the cabin, the highly concentrated air inside the cabin is circulated, causing the window glass to fog up. For this reason, a so-called outside air mode is used in which outside air is sucked in, heated by a heater core, and then blown into the vehicle interior. However, when the outside air temperature is extremely low, or when using a cold water heater such as a diesel engine that uses cold water from an engine with a small water heat capacity LIN, a single supply of outside air can have a sufficient heating effect of 14f, l. There will be times when you will not be happy.

SUMMARY OF THE INVENTION An object of the present invention is to provide an air conditioner for an automobile that can prevent fogging of window glasses during heating operation and at the same time prevent a decrease in heating effect.

The air conditioner for an automobile according to the present invention has two parts of the air intake system, 1.11 iFj and 1.11 iFj of outside air intake. (2) Indoor air intake I-J/J' is installed (), on the leeward side, there is a star outlet d3 and a henchreceive three-way air outlet. Other air outlets such as
A ridge 111 is formed that separates the outside air passageway leading to the leeward part of the vehicle, and the inside air passageway leading from the inside air intake port to the other outlet. a duct 1- with a 3-ip connecting path and said duct 1;
- The outside air intake [:1] The ventilation hood taken from the vehicle interior air intake II is installed with f1 cut between the outside air passage and the inside air air passage i'8 in the Doug 1~. Hot space for heating 4! ! ! and a damper for opening at least a communication path between the outside air passage and the inside air air passage, and furthermore, an outside air intake person Ll and an inside air intake person (in addition, the outside air intake L-163J of the above-mentioned Gukut, The construction consists of a stepped air chamber with internal air intakes and internal air inlets.

With this configuration, the automotive air conditioner of the present invention provides the following effects.

(a) It is possible to prevent the window glass from fogging during heating operation while minimizing the decline in heating effectiveness.

(b) The temperature of the air blown out from the differential 1 star can be made lower than the temperature of the air blown out from the foot air outlet, making it possible to reduce head heat.

Kuha) Outside air intake person L1 and inside air intake inlet are 11il! I
By providing a separate air chamber, it is possible to freely select and draw outside air, inside air, d3, and a mixture thereof from both blowers.

Next, the present invention will be explained with reference to the drawings and an embodiment thereof.

Reference numeral 1 shows an air conditioner for an automobile according to the present invention, which includes a wind circuit device 2, a control device 4, etc. installed in the front panel of the automobile for air conditioning, and a driver's seat in the interior of the vehicle inside the front panel. It consists of an operation panel 5, etc., which is installed nearby.

The wind circuit device 2 has one side (upper side in this example) and the other side (lower side in this example) in the wind section 2A.
An outside air intake port 21d5 and an inside air intake port 22 are provided in (a) and 5, and a windward glass partition 23 is provided to separate the outside air intake port 21 from the inside air intake port 22, The leeward part 2 [3 each had one in the middle chamber γ)
1-1 star air outlet L'24, bench 1 nosion air outlet 2!1 (t3J: and foot air outlet l-12G is formed, extending from the middle part 2C to the leeward part 2B'C is the front m
i def ['' Star balloon L124 Gawato bench 1-Jiyon vent 25J3 and foot balloon L126 Gawato 11 cuts I! ii1 + gawa 11 cut 27 is it! t)
A communication hole 28 is provided at the lower end of the kite on the leeward side (one cut 27).
20 to dak 1 and dak 1 respectively.
-20 outside air intake 21 and inside air intake 22, and in this embodiment, the double-shaft Tanabata 3 is arranged at a predetermined distance and installed inside a partition 23 made of two plates.
3L13J: and 32,
The evaporator 34 of the cooling device is fitted between the lower end of the I cut 23 and the upper end of the kite 11 cut 27, and each air path partitioned by the A cut 27 downstream of the evaporator 34. occupies half. 1. Partition 2
An air mix damper is attached to the front surface of each of the lower half 35A and lower half 35B of the heater core 35, which are separated by the partition 21. 37 and 38, the above-mentioned die 1~
Dampers 41 and 42 that open and close the intake ports 21 and 22 of 20, and the defroster outlet 24 and the communication hole 28.
a damper 43 that opens and closes the ventilation outlet 25, and a damper 44 that opens and closes the ventilation outlet 25 in conjunction with the damper 43;
and a damper 45 that opens and closes the foot air outlet 2G. Since the evaporator 34 allows air to pass only in the direction from the dow 1 to the handle, there is an outside air passage 21 in the die 1 from the outside air inlet 21 to the defroster outlet 24 or the communication hole 28, and the outside air An inside air passage 2 is formed which is substantially separated from the passage 2F and extends from the inside air inlet [22] to the ventilation outlet 25, the foot air outlet 1''2G, or the communication hole 28.

In addition, the heater core 35 is placed in the upper half 35 of the partition 27.
In addition to the above embodiment, the method of dividing the heater core into the Δ and lower 21' portions 3513 may be such that the heater core is divided into two parts and installed in each air passage partitioned by the partition 27.

A control device 4 is a die refram 4 for operating dampers 41 and 42 that open and close the suction [J] of the die 1-.
1 A JJ J, Hi 42 A To, Mae Iij Chi 71
．． J Stator:/H 43a, 3 and the die 17 noram 43Δ for avoiding activation of the bending damper 44, the die 17 noram 45Δ for activating the foot blowout 1-1 tamper 45, and -L John's intake 7 Negative pressure source 46 such as Nifold etc.
A, 43A, 45A, etc.) Solenoid switching valve 41 [3, 4213, 4313 installed in the negative pressure supply path that connects
J3 and 45B, these solenoid switching valves old 13.42]3
．． 4313 and 45] 3 input terminal IC, 42G, 4
3Cd3 and 4! Equipped with iC. 47 is a battery, 48
There is a Norse asthmaticus C.

The air conditioner operation panel 5 includes a blower air volume selector switch 51, a heat exchanger switch 1 to a roll lever 52, a cooler switch F53 (tJJ: and a blowout mode selector lever 54).
has been; old). Blowout mode switching lever!
i 4 Ha, n'JRt input Q'a child 41C-42C1
43C145CJJ and the movable terminal 55 that makes sliding contact with the ground terminal 48. During the period when the movable terminal 55 comes into contact with the input terminal, each electromagnetic switching valve is energized from batches L and J47, negative pressure is supplied to the diaphragm 1, and each damper is set to the position indicated by the solid line in the figure, and is movable. When the terminal 55 and the input terminal are connected, each city f, i) 1,7J
The grinding valve is in a non-energized state, the die 17 flam is open, and each damper is set at the position indicated by the dashed line in the figure.

Next, the operation of the automobile air conditioner according to the above embodiment will be explained.

The blower switch 51 is the strongest from 01-" (illustration 1-1
1) Connect the contacts for the two airflow adjustments to the right position according to the set position on both shafts.
1 and 32 are rotated by ff1lr.

The dry+i control lever 52 is connected to the heater core 35.
dampers 37 and 38 mounted on the front surface of the vehicle are driven. When the lever 52 is set to the strongest heating position (1 to 10 T shown in the figure), the dampers 37 and 38 are set to the position A shown in FIG. 3! Passing through I, the strongest cooling position is shown as 000
When set to 1- ), the JB's (-!1
6, H9 constant 411, kite (all heater 1A 311, 41) flowing, J3 at 1 fl in the middle, some heaters.
Passing through Noah, the others flow in the L direction of heater 1a, and downstream r, 'J-amics are performed.

When the tara switch 53 is turned on, cooling %fi is operated and heat exchange is performed in the evaporator 34.

The duct 20 is opened by operating the blowout/one-door switching lever 54.
The wind flow inside is controlled like a pylon.

(a) Lever! +4 is the maximum ventilation [-de (MAXV shown)
E N T ) position.

(Only 42B of the 11th flea switching valve is energized, and 41[3
, 4ζ (13,4513 is]j in the energized state.

In addition, as shown in Figure 3, tamper 42 and σ44 are added.
But shy 1 prefecture person [122 and ventilation speech bubble 02! + is heard, the outside air intake [121, defroster outlet D24, +> and the foot outlet 26 are closed, and only the inside air is sucked in from the intake 1122.
It is blown out from 5 to 7 in width. The wind is mainly in the internal air channel 21:
However, a communication hole 23Δ is provided in the windward glass partition 23 (
) 63 < and 3A wind hun 7 31 J, and send H! Since the inside air is sucked in through the center of the air intake 32, the outside air pressure (inside air also flows into the passage 2E).At this time, the damper 43 is set at the position HH2 where it closes the air outlet 24 on the differential. Therefore, the communication hole 28 is open.

(b) When the lever 54 is set to the ventilation mode position (vEN1- in the figure).

The electromagnetic switching valves 4jBd) and 42[3 are energized, and 4jBd) and 42[3 are energized;
3B and 45B are de-energized. As shown in FIG. 24J3J, and the foot air outlet 2G is closed.

As mentioned above, since the communication hole 28 is in question, the suction port 21J
The outside air a3 and the inside air sucked in from air pumps 3 and 22 are combined and blown into the vehicle interior from the pendeletion air outlet C125.

(c) Lever! +4 to level 7-do (13/
When set to L).

Solenoid cut-off 1 lead valve is 4113.42 t3 d, 3 J:
and 4513 are de-energized, and only 4313 is de-energized. This is shown in Figure 5. 19JI Kudamba 41.
42.44+13J and 45 each take in outside air and 1
21, internal air intake port 22, pendelasion outlet 2
5J3 and the foot outlet 2G, and the communication hole 28 is also connected, so the suction 1 is connected from the inlet 21 and 22.
, the outside air J3 J: and the inside air is mixed 0 with Doug 1-Kite C"
J, and the speech bubble at the foot ['j2G is blown into the room 14.

(d) When the lever 54 is set to the heater mode (HEΔF).

If you operate the lever 52 to the Ll 01 side, the heater valve (U shown in the figure) of the hot water heater will be turned off for the first time. There is a shortage of water in the heater core 35.
ノ is also paid.

All C's of 41F3, 42B, and 45B are energized for the electric company 1 switching valve. As a result, as shown in FIG. 6, the tamper 41.
42.43 and 45 are respectively outside air intake [121,
The dampers 43, J, and 44 block the communication hole 28 and the pendeletion air outlet 25, with the inside air intake port 22, the defroster outlet 24, and the foot outlet 26 interposed therebetween.

At this time, outside air is sucked in from the outside air intake port 21, passes through the outside air air path 2F, and is blown out from the defroster outlet 24.
Inside air is sucked in through the inside air intake port 22, passes through the inside air air path 2F, and is blown out into the vehicle interior through the footwell outlet 2G.

For this reason, outside air, which has a slightly lower odor than the inside air, is heated and blown out from the defroster air outlet L] 24 to prevent fogging of the window glass, and from the foot air outlet 2G, the inside air, which has a higher temperature than the outside air, is heated and blown out. is heated and blown out, which prevents the heating effect.

(e) Move the lever 54 to star mode (Illustrated 1) [
When set to 2F).

The electromagnetic switching valves 41B and 43B145B are energized, and 4
Only 23 is de-energized. As a result, as shown in FIG. 7, the dampers 41, 43a3 and 45 respectively inject the outside air intake 21, the differential 1st air outlet 24d3 and the 1st air outlet 26, and dampers 42, 43 and 45 respectively. 44(
Close the inside air inlet 22, the communication hole 28a3, and the vent 125 to the vent. In this state, Dak 1-2
At 0, only outside air is sucked in from the outside air intake 1'' 21, passes through the outside air passage 21i, and is blown out from the defroster outlet 24 toward the window glass. It is opened and closed via a link mechanism such as a cooler whose end is connected to a damper.

FIG.

In the present invention, outside air intake L161 is installed in the bladder LV of Tough l-20.
An air chamber 6 is provided to open and close the outside air intake 11G2, and one tamper 64 for opening and closing these outside air intakes 62 is installed to remove the outside air from the duct 1-20. Inhalation [121] and internal air intake [122] are injected into the air chamber 6.

In this automatic iT air conditioner, when the damper 64 closes the outside air intake L161, only inside air is sucked into the air 6, inside air is sucked from both the outside air intake port 121 and the inside air intake port 220, and the damper 64 Shy population 62
When closed, only outside air is allowed to enter the air chamber 6, and only inside air is sucked in from both the intake ports 21J3 and 22. Further, when the damper 64 is set at an intermediate position and the air chamber 6 is divided by the partition 65 and the damper 64, the outside air intake port 21 and the outside air intake port 61 are in communication with each other, and the inside air intake port 61 is in communication with the outside air intake port 21.
The second internal air intake port 22 is in communication. When set to a position other than the above three settings, outside air and inside air are mixed depending on the degree of opening and supplied to both intakes 1'' 21 and 22.

As a result, the windward glass partition 2 of the specified invention shown in FIG.
Compared to the communication hole 23Δ provided in 3, the twin air blowers 1 and 32 can sufficiently suck outside air, inside air, or a mixture thereof, increasing the air blowing capacity. In addition, there is 1 damper
The configuration of the automotive air conditioner can be simplified. To similar 1j, or as shown in Fig. 1, inlet 2163J: and 22 of duct 1- are installed on the upper and lower side walls (by providing dampers to open and close the J inlet and the inlet). However, in this case, the +U number of tampers is a must.

Figure 9 shows another embodiment of the invention ``1j''.
In 11 cases, t and both 11111' [I and 33 are dak 1 and 2.
It is fixed to the lower wall of 0. This facilitates the removal and maintenance of the double-shaft motor.

[Brief explanation of the drawing]

Figure 1 shows the air conditioner for automobiles according to the present invention! ! I-position Suginari diagram, Figure 2 (other side sectional view, Figures 3 to 7, Figure 4)
iL-f, FIG. 8 is a plane view of the main part of the related invention, and FIG. 9 is a front view of the main part of the Wirii showing another embodiment of the related invention. In the diagram: 1...Automotive air conditioner 2...Wind circuit 14...Control device 5...Operation panel 6...Air chamber 20...Goku 1 to 23...Upwind Glass partition 2
4... Deaf eyes star balloon [12! □I...Pendelesion speech bubble [-126...Foot speech bubble 1]
27...K1 bottom glass partition 31, 11'u3i'H 1;4:,,, 26 ・)~6)□5riI 6iji 71・1

Claims (1)

[Claims] 1) An outside air intake port and a vehicle interior air intake port are provided in the upper part of the wind, and other air outlets such as a defroster outlet, a pendeletion outlet, etc. are provided in the lower part of the windshield,
The defroster blows out from the outside air intake port 1]
A partition is formed to separate an outside air passage extending from the air intake port to the other air outlet, and a communication passage connecting the outside air passage and the inside air passage is formed in the leeward portion of the vehicle. a blower fan attached to the outside air intake of the ducts 1 to 1, and a blower fan installed in the duct to be partitioned into the outside air passage and the inside air passage. At least the previous R1 with a heating heat exchanger! Automatic indoor air conditioner (4 units) consisting of a damper etc. that opens and closes the communication path between the outside air air path and the inside air air path. 2) Outside air taker Ll (+3 J: Inside air taker 1-1)
The above-mentioned air chambers are stacked in the upper part of the wind, and the upper part of the wind is provided with an f-1-1 star outlet and a pendeletion outlet. , an outside air passage from the outside air intake I'' to the froster outlet ['', and an outside air path from the outside air intake I'' to the other froster outlet D! A partition is formed to separate the inside air passage from the inside air.
Furthermore, the duct is equipped with a communication path that connects the outside air air path and the inside air air path! 1), and 11 cut (installed) in the duct between the outside air air passage and the inside air air passage. II!m heat exchanger and at least the front 1
．． 11 An automatic indoor air conditioning device consisting of a damper installed in a communication path between an outside air air path and an inside air air path.