KR0110598Y1 - Air-conditioning system for motor vehicles - Google Patents

Abstract

In a flat air conditioner for mounting on the roof of a vehicle, in particular in a van, an improvement in efficiency, minimum construction height, independence of the vehicle's own ventilation and a number of modes of operation are achieved by the following description. That is, the evaporator 2 is installed in front of the condenser 3 on the roof of the vehicle when viewed from the driving direction, and is provided on the circulation air mechanism 5 having the front fresh air inlet 12 and providing a joint inside the vehicle. A divergent housing inner region 11 of the evaporator 2 is made, and air passages from the inner region of the housing to the evaporator heat exchanger and the condenser heat exchanger can be opened and closed by the flaps 8 and 9.

Description

[Detailed Description of Design]

The present invention includes a condenser and an evaporator, one of which is installed behind the other when viewed in the direction of travel, the evaporator having a housing center region with a circulating air opening extending from the interior of the vehicle. Air from the inside is flat air conditioner for mounting on roofs of vehicles, especially vans, which are conveyed into the vehicle via evaporation resistors (which extend parallel to the direction of travel), in some cases via heating resistors and fans. It is about a device

Such air conditioning apparatus is air in many forms and is described, for example, in German Patent No. 3324895.

In the air conditioning apparatus of the above-described configuration, the condenser is placed in front of the evaporator when viewed in the running direction.

The tube of the heat exchanger in the condenser extends transverse to the running direction and the front face of the condenser heat exchanger is inclined forward with respect to the horizontal plane. The fan installed in the condenser heat exchanger sucks in through the heat exchanger of the condenser from the fresh air inlet in front and then transfers this air upwards.

The evaporator of the known air conditioning apparatus, as viewed from the direction of travel, operates like a silver without the air flow passage at the rear of the compressor.

In other words, the circulating air from the inside of the vehicle passes through the tubular resistor in the heat exchanger of the evaporator extending in the driving direction and then is returned to the inside of the vehicle through the fan.

In the case of the known air-conditioning device of the above-mentioned type, the pores of the evaporator depend on the structure of the boarding space provided in the vehicle and the ventilation and ventilation functions, but the condenser condenser when viewed in the direction of travel on the roof of the vehicle or on the roof of the van If arranged rearward, there was a disadvantage that ventilation could not be achieved by fresh air supply channels without expanding the height and cross section of the air conditioning apparatus.

The object of the present invention is to provide a fresh air inside the boarding space, regardless of the air intake or the air inlet of the vehicle or the vehicle's own air conditioner technology, without minimizing the height of the device and greatly deforming or expanding the shape. It is to provide a flat air conditioner for mounting on the roof of a vehicle, in particular, a van.

According to the present invention, there is provided a flat structure air conditioning apparatus for mounting on a roof of a vehicle, the apparatus comprising a condenser housed in a housing member and an evaporator housed in another area of the housing member. One of the condensers is mounted side by side in the driving direction, and the evaporator is provided with a series of air circulation returning into the vehicle via an evaporator fan and an evaporator tubular resistor that extends parallel to the driving direction from an opening opened from inside the vehicle. In the apparatus having a possible inner housing member, the evaporator is placed in front of the condenser in the traveling direction, the front of the housing member has a cool air inlet that can be closed, and the inner housing member around the air circulation opening is opened and closed. Possible circulating air flap on side partition wall Surrounded by an inner dividing wall of the housing member, the rear dividing wall of the inner housing having an openable and closed exhaust air flap, through which the air from the inside of the vehicle or the inner housing member passes through the air flow passage of the condenser. Characterized in that can be discharged.

Even when the height of the air conditioning apparatus is extremely small, for example, about 16 cm, the front air inlet of the housing member surrounding the evaporator supplies a certain amount of fresh air even if the minimum height is taken into consideration, and in some cases the cooling in the evaporator Or is sufficient to heat and then feed into the vehicle, from which air is drawn through the circulation air vents in the roof of the vehicle into the center area of the housing of the evaporator, and through the open exhaust flap in the rear partition wall of the center area of the housing. It is delivered to the condenser and conveyed from the condenser to the atmosphere.

In this way, the air conditioning apparatus according to the present invention may not depend at all on the vehicle's own ventilation device with respect to fresh air supply and ventilation. This means that the cost can be saved by making the structure of the air conditioning apparatus according to the present invention very simple.

According to a very preferred feature of the structure according to the present invention, the cooled indoor air is introduced into the air conveying passage of the condenser mounted on the vehicle roof behind the evaporator in the traveling direction through the waste air flap, so that the efficiency of the whole apparatus This is improved.

In the following description of the preferred embodiment according to the present invention, several modes of operation are described, which involve certain advantages. Details of the air conditioning apparatus of the present invention will be described in detail with reference to the embodiments with reference to the drawings.

1 is a perspective view of an air conditioning apparatus for mounting to a vehicle roof, with the left part of the device cut along a vertical longitudinal center plane and the rear part of the condenser cut away, and FIG. 2 is a top housing wall of the evaporator. Figure 3 is a plan view of the air conditioning apparatus according to FIG. 1, shown on a smaller scale after removal, and FIG. 3 is a cross-sectional view of the condenser cut along the line III-III shown in FIG.

In the drawings, the tubes, valves, filters, etc. of the cooling device are omitted for the sake of brevity since they are aired to those skilled in the art in various embodiments, where only the evaporator and the compressor, which are important parts of the air conditioning device, are shown in detail. .

In addition, control devices, in particular pneumatic or electric control devices, and electrical excretion are also omitted from the drawings because they are aired to those skilled in the art.

However, it is more convenient if the position of the flaps and shutters described and illustrated can be adjusted over the entire range continuously or stepwise by a suitable adjusting device.

The air conditioning apparatus is formed symmetrically with respect to the vertical longitudinal center plane of the vehicle and the air conditioning apparatus, and comprises an evaporator 2 and a condenser 3.

The evaporator 2 is raised in front of the condenser 3 when viewed in the travel direction and lies entirely within the housing member 4 of a substantially cuboid. The side wall of the housing member 4 may be formed in a manner other than the inclined form as shown, for example, may be formed vertically as shown in the cross section of the condenser in FIG.

In any case, however, the cross section of the evaporator and condenser perpendicular to the direction of travel is chosen such that the two devices are in line with each other in the direction of travel in favor of the air flow.

The evaporator 2 is mounted on the vehicle roof in a position where a triangular or trapezoidal circulating air vent 5 on the bottom of the housing member 4 can cover the circulating air vent on the roof of the vehicle.

The circulating air opening 5 is surrounded by the separating walls 6 and 7 in the housing member 4, which are inside the housing member 4 and the upper part of the circulating air opening 5. Form an internal dividing wall.

As shown in Figs. 1 and 2, a circulating air flap 8 is provided on the side partition wall 6 formed to be inclined with respect to the running direction, and the circulating air flap 8 is formed on the side wall 6 of the side partition wall. It is connected to the upper edge of the longitudinal opening of) and the opening can be opened continuously or stepwise between the closed position and the maximum open position by a pneumatic adjustment device.

A rear air separation flap 9 is provided in the rear separation wall 7, which may be integrally formed with the rear boundary wall of the housing member 4, and the exhaust air flap 9 has an opening formed in the rear separation wall 7. It is used and is connected to the upper edge of the opening. The exit air flap can also be continuously or stepwise adjusted between the closed position and the maximum open position of the opening by a pneumatic adjustment device.

As shown in FIG. 2, the inner space of the housing member 4 of the evaporator 2 is subdivided into two regions by the inner dividing walls 6, 7. That is, one housing center region 10, indicated by reference numeral 10 on the top of the circulating air port 5, and the housing exterior situated between the inner dividing walls 6, 7 and the outer boundary wall of the housing member 4. The area 11 is subdivided.

A fresh air inlet 12 is provided in front of the housing member 4 of the evaporator 2, and the fresh air inlet 12 is openable by a blind. The thin plate of the blind is formed over the entire width of the housing member 4 and can be continuously or stepwise adjusted between the closed position and the open position by a pneumatic adjustment device.

In the housing outer region 11, an upright beam-like tubular resist 13 placed in a substantially running direction to act as a heat exchanger of the evaporator, arranged parallel to the tubular resistor 13 and in the air flow direction. In view, a similarly formed heating resistor 14 arranged next to the tubular resistor 13 is provided on each side.

The air passing through the registers 13 and 14 is transferred by the fan 15 into the vehicle through the housings aligned with each other.

Short circuit of the air flow between the fresh air inlet 12 and the inlet of the fan 15 is prevented by a suitable member installed in the housing outer region 11.

The chamber of the housing outer region 11 raised between the tubular resistor 13 and the side wall separating wall 6 becomes taper in the air flow direction or in the running direction corresponding to the decrease in the amount of air discharged by the fan 15. .

The housing member 16 of the condenser 3 has a cross sectional shape as shown in FIG. 3 and covers three tubular resistors 17, 18, 19 which act as heat exchangers of the condenser.

The tubular resistors are mounted so as to extend in parallel in the travel direction on a flat trapezoidal aluminum support frame 20 supported on the vans roof 21. Referring to FIG. 3, the central tubular register 19 is placed in alignment with the roof with a slight gap on top of the vanity roof 21, while the side tubular registers 17, 18 are inclined as follows. Is placed.

That is, the air chamber 22 is inclined so that the air chamber 22 is formed below the tubular resistor 17, 18, 19, and the shape of the air chamber 22 is rearward blocked from the front blocking wall of the housing member 16 of the condenser. It is a prism shape with a flat trapezoidal cross section extending to the wall.

The flat disc-shaped condenser fan 23 mounted on the housing member 16 sucks ambient air through the air intake grid of the housing member 16 above the central tubular resistor 19, so that the ambient air is provided with an air chamber ( 22) and then to the atmosphere again through the tubular registers 17 and 18 and the fan 23 on the side.

The arrangement of this condenser-evaporator with tubular resistors extending parallel to the direction of travel on an aluminum support frame 20 having a trapezoidal cross section makes it possible to lower the good air flow and strength and the height of the structure. .

However, a particularly important feature is the condenser 3, by means of an opening which is in the rear blocking wall and the separating wall 7 of the housing member 4 of the evaporator 2 and which can be closed by the exhaust air flap 9 of the evaporator 2. The air chamber 22 of) can be in communication with the housing member 4 of the evaporator 2, so that the exhaust air is between the central region 10 of the housing member of the evaporator 2 and the airflow channel of the condenser 3. The passage can be formed.

Such configuration and correlation of the evaporator and condenser enables advantageous operation of the air conditioning apparatus. The operation mode of the present invention will be described in more detail as follows.

A. When the flaps 8 and 9 in the evaporator 2 are closed tightly, the blinds are completely opened or partially opened through the air inlet 12 due to the dynamic pressure during traveling to the outer region 11 of the housing member. The flowing fresh air is introduced into the vehicle after the cooling or heating in the tubular resistors 13 and 14 even if the gligo fan 15 is not operated.

This air is leaked out again by the exhaust system of the vehicle when the flap 9 at the rear partition wall of the housing center region 10 is closed.

In this case, therefore, the useful properties of the air conditioning apparatus of the present invention are not yet used because of the exhaust system of the vehicle. Since the fan 15 of the evaporator can be controlled steplessly within an output range of 50% to 100% according to the advantageous features of the above configuration, the power consumption of the evaporator fan can be saved in each operating state and environmental condition so as to save energy. Can be adjusted accordingly.

B. Dynamic pressure of air flowing into the outer region 11 of the housing member 4 through the air inlet 12 when the fan 15 of the evaporator starts to operate with the flaps 8 and 9 closed. Help the transfer effect of this fan (15).

C. When the exit air flap 9 is fully open with the blind of the air inlet 12 open, the system is independent of the air inlet of the vehicle itself as well as the air inlet of the vehicle itself.

All fresh air supplied by the air inlet 12 is optionally processed by an air conditioning technique in the tubular register of the evaporator and transferred to the inside of the vehicle by the fan 15, and then again from the inside of the vehicle to the circulating air outlet ( 5) and an open flap 9 to be discharged to the outside and discharged to the atmosphere by the fan 23 in the case of the internal space of the condenser 2.

In the case of the operating mode, the flap 8 of the side dividing wall is closed to prevent a short circuit between the air flow passages that reach the fan 23 through the flap 9 from the air inlet 12. have.

In the case of the operation mode, the operation of the fan 15 can be stopped if the driving speed of the vehicle is sufficient for the dynamic pressure on the air inlet 12 to provide fresh air delivery. When the fan 15 stops, the flap 8 closes and the flap 9 opens, one or more fans 23 draw fresh air from the air inlet 12 through the flow passage through the vehicle interior. Therefore, it is possible to provide fresh air inside the vehicle when the vehicle is driven or stopped.

D. When the blind of the air inlet 12 is completely closed and the flap 9 in the separating wall 7 is completely closed but the flap 8 of the separating wall 6 is open, it operates in the normal air circulation operating mode, In this air circulation operation mode, the air flowing from the inside of the vehicle through the circulating air port 5 is cooled and heated by the tubular resistors 13 and 14, respectively, and is supplied to the inside of the vehicle by the fan 15 again.

E. The air circulated by the normal air circulation operation mode described above can be supplemented with as much fresh air as necessary by partially opening the air inlet 12 according to a predetermined amount.

As implemented in the case of the A and B operating modes, when the flap 9 is closed because there is no need to take advantage of the advantageous properties of the air conditioning apparatus, the amount of air replenished in the air circulation operating mode is applied to the vehicle exhaust system. This flows out into the atmosphere as waste air.

F. Compared to the above E mode of operation, the independence of the vehicle's exhaust system is achieved as follows. In other words, the discharge operation mode for discharging the supplemented circulating air to the atmosphere is achieved by opening or partially opening the waste air flap 9 to operate independently of the vehicle's exhaust system.

In the case of the F mode of operation, in particular C mode of operation, independence from the exhaust system of the vehicle is achieved, as well as the cooled indoor air from the central region 10 of the evaporator housing through the condensed air flap 9. Inflow also improves the efficiency of the condenser.

G. Finally, in the operating mode in which the blind and the circulating air flap 8 of the fresh air inlet 12 are completely closed and the exhaust air flap 9 is open, the circulating air inlet 5 is operated by the operation of the fan 23 of the condenser. By lowering the inside of the vehicle to a low pressure state, the atmosphere is introduced into the vehicle through the small gaps and openings inside to allow the interior of the vehicle to be cooled by fresh air from the atmosphere.

As with the evaporator fan 15, the condenser fan 23 can be adjusted over a wide range of times, thereby allowing the interior of the vehicle to exit the vehicle through the flap 9 and air circulation port 5 which are fully or partially open. It can be controlled.

If the entire air conditioning device is not operated, all the flaps are closed so that no draft phenomena occurs through the circulating air port 5.

The configuration of the condenser described above represents a design independent of the above configuration of the evaporator.

Claims (12)

A first housing member having a fresh air inlet having an open or closed position in front; An evaporator having a central area of the first housing member and being accommodated in the first housing member around a circulating air opening opened out of the vehicle's cab to the outside of the vehicle body; One or more tubular resistors arranged in the front housing member so as to extend in parallel in a travel direction and through which the air introduced from the circulating air passes; An evaporator fan for resupplying air from the one or more tubular registers into the cabin of the vehicle, A housing inner shaft separating wall provided in said first housing member with a side separating wall having a circulating air flap having an open position and a closed position and a rear separating wall having a closed air flap having an open position and a closed position; A second housing member arranged to be aligned with the rear direction of the first housing member in a driving direction; A condenser housed in said second housing member, and A waste air flap arranged on the rear partition wall inside the first housing member, When the circulating air flap is closed, air flowing from the cab through the circulating air port and the waste air flap 9 is discharged into the air flow passage of the condenser, and when the circulating air flap is opened, the inner part of the housing The air conditioning apparatus for a vehicle having a flat stake structure for installing an air conditioning apparatus, characterized in that the air of the air is discharged toward the flow passage of the evaporator. 2. The air conditioning apparatus of claim 1, wherein the at least one tubular resistor comprises at least one evaporator resistor. 3. The air conditioning apparatus of claim 2, wherein the at least one tubular resistor further comprises at least one heating resistor. 2. The vehicular air conditioning device of claim 1, wherein the one or more tubular resistors further comprise one or more heating resistors. 2. The vehicular air conditioning apparatus according to claim 1, wherein the housing inner dividing wall defines a portion of the first housing member on the circulating air opening that is tapered inwardly in the traveling direction. 2. The fresh air inlet and the circulating air flap and the exhaust air flap are operated by a regulating device, the actuation of the regulating device being operated continuously or stepwise between the closed position and the maximum open position. Vehicle air conditioning apparatus, characterized in that. 7. The vehicle air conditioning apparatus according to claim 6, wherein said regulating device operates pneumatically. 2. The condenser of claim 1, wherein the condenser comprises three tubular resistors forming a heat exchanger of the condenser, wherein a resistor in the center of the three tubular resistors is directly below the air inlet of the second housing member and the roof of the vehicle. The two tubular resistors on the side, spaced slightly apart, are inclined relative to the condenser cross section such that the heat exchanger of the condenser defines a flat trapezoidal cross section of the air chamber above the roof of the vehicle, the periphery of the interior of the air chamber. And after the air has passed through the central tubular resistor, it is discharged back to the atmosphere by a condenser fan located above the tubular resistor on the side. 10. The vehicular air conditioning apparatus according to claim 8, wherein the tubular resistor forming the heat exchanger of the condenser is mounted on a metal support frame having a flat trapezoidal cross section. 10. The vehicle air conditioning apparatus according to claim 9, wherein the metal support frame is made of aluminum. 9. The air conditioning apparatus of claim 8, wherein the condenser fan is mounted in an upwardly oriented wall of the second housing member. 9. The air conditioning apparatus of claim 8, wherein the evaporator fan and the condenser fan have a capacity that can be adjusted continuously or stepwise within a specific adjustment range.