KR20190032207A - Heater/air conditioning for a motor vehicle - Google Patents

Abstract

The present invention relates to an air-conditioning/heating device for a vehicle which is simple in terms of a manufacturing technology and thus inexpensive. The air-conditioning/heating device includes: a vaporizer; a defrost outlet disposed above the vaporizer; at least one first dashboard outlet disposed between the vaporizer and the defrost outlet; at least one additional dashboard outlet wherein the additional dashboard outlet is disposed such that the defrost outlet is disposed between the first dashboard outlet and the at least one additional dashboard outlet; a heating heat exchanger disposed on a lower side; a hot air channel for connecting an area above the heating heat exchanger to the defrost outlet or inlets of the first dashboard outlet; a separating wall disposed between the defrost outlet and the first dashboard outlet wherein the separating wall protrudes inward of an outlet of the hot air channel until spatially separating the defrost outlet from the first dashboard outlet; and an air guide member disposed on the vaporizer and on both sides of the hot air channel.

Description

HEATER / AIR CONDITIONING FOR A MOTOR VEHICLE

The present invention relates to a cooling and heating apparatus for a vehicle.

Automotive air conditioning units are equipped with 3 or 4 zones to enable individual passengers to set individual seats on an increasingly increasing basis. By means of a fan placed in the heating and cooling unit, the air mass flow is carried into the heating and cooling unit and through the heating and cooling unit. During the heat transfer surface superfluidity of the refrigerant circuit evaporator, the air mass flow is dehumidified and / or cooled. The air mass flow can then be divided into a cold air path and a hot air path. In this case, the partial air mass flow guided through the hot air path is guided through the heat transfer surface of the heating heat exchanger, and this heating heat exchanger is used, for example, in the conventional air conditioning systems of automobiles, And is provided with an internal combustion engine drive drive. The hot air flow flowing out of the heating heat exchanger and the cold air flow flowing out from the evaporator and guided through the cold air path are combined at a specific mixing ratio adjustable in the mixing chamber to control the temperature of the room inlet air.

For multi-zone heating and cooling units, also referred to as multi-zone-heater / air conditioning, mixing chambers are provided in all zones to ensure a customizable mixing ratio of hot air flow and cold air flow, respectively .

In order to air-condition the various zones, the air-conditioning unit has a plurality of outlets. The so-called de-frost outlet is arranged in front of the air-conditioning unit, that is, in front of the installation state, and guides the entire usable warm air of the air-conditioning unit to the windshield by the defrost function. For outlet nozzles, additional vents are provided on the dashboard for lateral and central and indirect ventilation. In known heating and cooling systems, these venting outlets of the dashboard are positioned at the rear, i.e. in the inward direction. Since all outlets for a dashboard must be provided with the same temperature, the arrangement of these outlets should be technically easy to implement. Additional outlets for air conditioning of the rear compartments are disposed on the lower surface of the air conditioner. An arrangement of these outlets is described, for example, in US 7,013,967 B2.

However, in the case of certain vehicles, the configuration described above is technically difficult to integrate into the vehicle. That is, in certain vehicles, there is a requirement that the outlets of the air-conditioning unit be positioned in the dashboard for the side outlets, so that the de-frost outlets should be located between the side outlets of the dashboard and the dashboard center outlets . This arrangement problem is that the temperature level of the defrost outlets is much higher than the temperature level of the dashboard outlets, but in such an arrangement it must be guided between the outlets.

An object of the present invention is to propose a cooling / heating apparatus having the aforementioned arrangement of the outlets.

The above object is solved by an object having the features of claim 1. Improvements are described in the dependent claims.

The heating and cooling apparatus according to the present invention has an evaporator, and the air is cooled and dehumidified through the evaporator at the inlet of the air conditioner. A defrost outlet is disposed on the evaporator. Preferably, the de-frost outlet is arranged obliquely forwardly in an installed state. One or more first dashboard outlets are disposed adjacent the de-frost outlets, i. E. Under the de-frost outlets, in the installed state. Thus, the at least one first dashboard outlet is disposed between the evaporator and the defrost outlet. One or more additional dashboard outlets are disposed such that the defrost outlets lie between the one or more first dashboard outlets and one or more additional dashboard outlets.

The one or more dashboard outlets can be one outlet, but preferably two adjacent outlets of two different zones.

Subsequently, the heating and cooling apparatus has a heating heat exchanger arranged on the lower side. This heating heat exchanger is preferably arranged so that air passes through the heat exchanger after the evaporator, through a cold air path, through a heating heat exchanger, or through a hot air path for heating purposes.

The heating and cooling apparatus has a warm air channel which absorbs the warm air from the heat exchanger and is guided to the defrost outlet or the inlets of the first outlet for the dashboard.

According to the present invention, a separating wall is disposed between the defrost outlet and the first outlet for at least one dashboard. In this case, the partition wall protrudes into the outlet of the hot air channel and continues until the de-frost outlet and the first outlet for at least one dashboard are spatially separated. Thus, the separating wall can divide the hot air flow from the hot wind channel between the defrost outlet and the first outlet for one or more dashboards.

In such a case, in a preferred embodiment, the separating wall serves as a housing part or a part of the warm air channel of the cooling / heating device, depending on the degree of advantage of the design in the manufacturing arts.

In particular, the cooling and heating device has an air guide member disposed on the evaporator and on both sides of the warm air channel. In this case, the air guide member makes it impossible for the air introduced from the evaporator on the cold air path to flow directly to the defrost outlet. The ascending cold air is directed by the air guide member to a first outlet for one or more dashboards or an additional outlet for one or more dashboards.

Preferably, there is provided an air conditioning system having a preferred arrangement of outlets, the outlets being likewise temperature controlled as desired, in particular to provide a maximum available warm air flow to the de-frost outlet and a temperature controlled air flow to the dashboard outlets Is provided.

In one preferred embodiment, the air guide member extends over the entire width of the air conditioner. Preferably, the cold wind can be easily prevented from overflowing to the defrost outlet and the first outlet for one or more dashboards, especially when the opening angle of the cold air flap is small.

Subsequently, preferably, the first outlet for the at least one dashboard is a side outlet of the at least one dashboard. Particularly preferred is the side outlet of the two dashboards, since in most heating and air-conditioning units the different seats are supplied with temperature-controlled air, i.e. different zones belong.

Also, the additional outlet for one or more dashboards is preferably an outlet for indirect ventilation of one or more dashboard central outlets and / or dashboards. In this case as well, there are particularly preferably two outlets, respectively, because the front seats are usually provided with temperature-controlled air, i.e. different zones of the air-conditioning unit.

Preferably, the air guide member is curved. In this case, the curved portion is aligned in the direction of the incoming cold wind, in the direction of the cold wind flap of the cold air path of the cooling and heating apparatus, and the path is guided along the heating heat exchanger. The bends can be particularly easily guided by the curved portion.

In a further preferred embodiment, the air guide member is part of the housing of the cooling / heating device or part of the warm air channel. Such a design is particularly simple in terms of manufacturing technology and thus is less expensive.

Subsequently, preferably, the separating wall extends to the side of the housing of the air conditioner. Thus, the separation of the air streams flowing into the defrost outlet or the first outlet for one or more dashboards is particularly easy, and air can be prevented from overflowing in the edge regions.

In a particularly preferred embodiment, a part of the cold air path of the air conditioning system passes through the warm air channel. In this case, a plurality of openings enabling air exchange are provided in the through regions. Particularly preferably, the warm air flow is guided through a plurality of nozzles arranged side by side, the sidewalls of the nozzle being at least partially arranged with openings, preferably slots, and cool air flowing through these openings into the warm air flow . Preferably, in this configuration, the response to temperature control at all positions of the temperature flaps is excellent. Other parts of the cold air path are guided along the hot air flow through the cold air channels and between the nozzles.

The embodiment of the present invention is simple in terms of manufacturing technology and thus can be costly.

Further details, features and advantages of embodiments of the present invention will be apparent from the following description of embodiments with reference to the accompanying drawings.
In the drawing:
1 is a sectional view of an air conditioner according to the present invention,
2 is a perspective view of a warm air channel,
3 is a larger perspective sectional view of the warm air channel,
4 is a view showing a warm air channel having an air guide member,
5 is a view showing the air path of the air conditioner, and
6 is a view showing a through region of the cold air and the hot air path.

1 shows a cross-sectional view of a cooling / heating device 1 according to the present invention. On the air inlet side, the cooling / heating device 1 has an evaporator 11, and the introduced air is cooled and dehumidified in this evaporator. A hot-air path (8) for the front area passes through the heating heat exchanger in an upper area, and an inlet of a hot-air path in the front area is provided with a hot- A path 15 is arranged. Above the heating heat exchanger (12), there is a cold air flap (14) for the front area, and the cold air passes through the heating heat exchanger (12) by the cold air flap for this front area. Below the warm air flap 15, a temperature door 52 for the rear area is located. The temperature door 52 divides the incoming air flow into a warm air flow passing through the heat exchanger 12 and a cold air flow guided beneath the heating heat exchanger 12. The two airflows are separated by a path separation wall 53. Below the heating heat exchanger (12) is an outlet (5) for the rear zones. In this case, the outlet (5) for the rear sections has four outlet doors, each having one leg room and ventilation outlet on each side. In order to prevent stratification of warm air and cold air by well mixing the cold air flow from the opposite direction to the warm air flow which is deflected by 180 ° after passing through the heating heat exchanger 12 and then guided to below the heating heat exchanger 12, 5) A mixing wall 51 is arranged in the region of impact between the above hot air and the cool air, and this mixing wall 51 allows two air flows to flow into the outlet 5.

The region following the heat exchanger 12 is separated into upper and lower regions by a shutoff door 13, in which case the lower region can utilize a rear outlet 5. For the defrost function, the shutoff door 13 is opened and the entire available warm air is guided to the windshield via the defrost outlet 2 with the defrost outlet door 21. Furthermore, the heating / cooling apparatus 1 has the outlets 4 for the front leg rooms. The outlets 42 for the front leg rooms have an outlet door 42 and an air stratified flap 41 in the warm air flow 8 through which additional warm air flows through the front leg room outlets 4 And outlets (4) for the front leg chambers to achieve temperature stratification between the outlet ports (33, 32, 31) in the dashboard.

On the heating heat exchanger 12, a hot air channel 85 is connected. In the hot air channel, cool air coming from the cold air flap 14 is introduced into the inlet region 9 laterally. The inlet region 9 is shown in detail in Fig. Below the de-frost outlet 2, a side outlet 31 of the dashboard with a side outlet door 311 of the dashboard is disposed. The air flowing out of the position is guided to the side outlets in the dashboard. The cooling and heating apparatus 1 also has a central outlet 33 of the dashboard with a central outlet door 331 of the dashboard. Between the central outlet 33 of the dashboard and the de-frost outlet 2, there is further disposed an outlet 32 for indirect ventilation of the dashboard having an outlet door 321 for indirect ventilation of the dashboard.

Since the de-frost outlet 2 and the side outlet 31 of the dashboard are directly adjacent to each other, a separating wall 7 is provided in which the outlet ports 2, 31 are continued from the area to the position in the air- , And in this position, the defrost outlet 2 and the side outlet 31 of the dashboard are spatially and structurally separated. Since the defrost outlet 2 and the side outlet 31 of the dashboard are positioned directly above the evaporator, air guide members 6 are provided on both sides of the hot air channel 85, From flowing into the defrost outlet 2 and / or into the side outlet 31 of the dashboard.

2 is a perspective view of a cooling and heating apparatus 1 according to the present invention. The hot air flow 8 coming from the heating heat exchanger 12 is guided into the hot air channel 85. After the cold air inlet area 9, the separating wall 7 starts, which separates the defrost outlet 2 and the side outlet 31 of the dashboard.

Fig. 3 similarly shows a perspective sectional view of the cooling / heating device 1 according to the present invention in a different cutting plane. The air guide members 6 disposed on both sides of the warm air channel 85 extend over the entire width of the air conditioner 1.

Figure 4 shows the view of Figure 3 in another cut plane. Here, the air guide member 6 can be seen very clearly.

Fig. 5 shows the air paths of the cooling / heating apparatus 1 more accurately. The hot air channel 85 connected from below with its cold air inlet area 9 is guided from the upper side into the defrost outlet 2 and the side outlet 31 of the dashboard. The separation wall (7) separates the two outlets. The air guide member 6 blocks the direct path of the cool air flowing into the defrost outlet 2 and the side outlet 31 of the dashboard. And cool air channels 94 connected to the front leg rooms are arranged on the lower side in front.

Fig. 6 shows a detailed view of the inlet region 9 of the cold air flowing into the hot air channel 85. Fig. In FIG. 6, the hot air channel 85 is guided from below into the inlet region 9, where the hot air flow 8 is guided through the plurality of nozzles 86. The cold air path 91 meets the nozzles side by side (leading from the rear in FIG. 6). The cool air is introduced through the openings 82 in the side wall 81 of the warm air path 85 and mixed with the mixed air 87 together with the warm air flow 8. However, the openings are not provided in all the nozzles 86.

1: Heating and air-conditioning unit
11: Evaporator
12: Heating heat exchanger
13: Shutoff door
14: Cold wind flap for the front area
15: Warm wind flap for front area
2: Defrost outlet
21: Defrost outlet door
31: Side outlet of the dashboard
311: Side outlet door on dashboard
32: Indirect outlet for dashboard ventilation
321: Exit door for indirect ventilation of dashboard
33: Central outlet of the dashboard
331: Central outlet door on dashboard
4: Outlet for the front leg room
41: air layering flap
42: Exit door for front leg room
5: Outlet for rear area
51: Mixed wall
52: Temperature door for rear area
53: Path separation wall
6: air guide member
7:
8: Warm wind path, warm wind flow
81: Side wall of warm air channel
82: opening of the warm air channel
85: Warm-air channel
86: Nozzle of the hot air channel
87: mixed air
9: Inflow area of cold air
91: cold wind route
94: Cool channel in the front leg room

Claims (9)

As the heating and cooling apparatus (1)
- the evaporator (11),
- a defrost outlet (2) disposed above the evaporator (11)
One or more dashboard outlets disposed between the evaporator (11) and the disost outlet (2)
Additional outlet for one or more dashboards, said additional outlet being arranged such that said defrost outlet (2) is disposed between said first outlet for said dashboard and said additional outlet for at least one dashboard,
- a heating heat exchanger (12) disposed on the lower side,
A hot air channel 85 connecting the region above the heating heat exchanger 12 with the inlets of the defrost outlet 2 or the first outlet for the dashboard,
- a separating wall (7) disposed between said de-frost outlet (2) and a first outlet for dashboard, said separating wall having a first opening Protrudes into the outlet of the channel 85 -
- an air guide member (6) arranged on the evaporator (11) and on both sides of the warm air channel (85). The method according to claim 1,
Characterized in that the air guide member (6) extends over the entire width of the cooling / heating device (1). The method according to claim 1,
Wherein the at least one first outlet for the dashboard is a side outlet (31) of the at least one dashboard. The method according to claim 1,
Wherein the additional outlet for the at least one dashboard is an outlet (32) for indirect ventilation of the at least one dashboard outlet (33) and / or one or more dashboards. The method according to claim 1,
Wherein the air guide member (6) is curved, and the curved portion appears in the direction of the cold air flap (14) of the air conditioner. The method according to claim 1,
Characterized in that the air guide member (6) is part of the housing of the cooling / heating device (1) or part of the warm air channel (85). The method according to claim 1,
Characterized in that the separating wall (7) extends to the sides of the housing of the cooling / heating device (1). The method according to claim 1,
Characterized in that the cooling and heating device (1) has two outlets (4) for the front leg rooms and the outlets have an air stratified flap (41) which can be connected to the warm air flow (8). 9. The method according to any one of claims 1 to 8,
The cooling and heating device 1 has a cold air path 91 passing through a hot air channel 85. The hot air channel 85 is guided through a plurality of nozzles 86 in a through region, Is provided with a plurality of openings (82) for allowing air exchange to the side walls (81) of the nozzle facing each other.

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