Vehicle-mounted air conditioning box and automobile air conditioner

Abstract

The invention provides a vehicle-mounted air conditioning box and an automobile air conditioner. The air conditioning box comprises an air inlet box, an air blower and a distribution box, an indoor heater and an indoor refrigerator are arranged between the air blower and the distribution box, the indoor heater and the indoor refrigerator are arranged at a preset angle, the distribution box comprises an air mixing cavity, and an air outlet of the indoor heater and an air outlet of the indoor refrigerator are communicated with the air mixing cavity; a plurality of separators and first air doors are arranged on the air inlet side of the indoor heater and the air inlet side of the indoor refrigerator; the separators comprise a first separator, a second separator, a third separator and a fourth separator; when the first air door is located at the first position, an air inlet of the indoor heater is separated from an air outlet of the air blower. When the first air door is at the second position, the air inlet of the indoor heater and the air inlet of the indoor refrigerator are communicated with the air outlet of the air blower; and when the first air door is located at the third position, the air inlet of the indoor heater is separated from the air outlet of the air blower. The energy consumption of the air handling unit can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile air conditioners, and in particular to a vehicle-mounted air conditioning box and an automobile air conditioner. Background Art

[0002] The vehicle air conditioning box is the core component of the car air conditioning, responsible for regulating the temperature, humidity and air quality in the car. When the vehicle air conditioning system performs temperature control and other modes, it is necessary to control the ratio of air flowing through the cold source and the heat source to achieve the required temperature, and finally send the mixed cold and hot air to the passenger compartment through different air outlets. The cold source in the vehicle air conditioning box generally uses an evaporator (refrigerant cooling) or a water cooler (water cooling), and the heat source generally uses a heater core (coolant heating) or a built-in condenser (refrigerant heating).

[0003] At present, the cold source and the heat source in the air-conditioning box are arranged in series, that is, the required hot air must first pass through the cold source to cool before entering the heat source. When the hot air passes through the cold source, there will be some heat loss, so the required heat source heat is higher, resulting in an increase in the energy consumption of the heat source. When the cold air flows through the heat source, it will be blocked by the heat source, making the ventilation impedance of the cold source large. When the hot air passes through the cold source first and then enters the heat source, the ventilation impedance of the hot air will also increase. The increase in ventilation impedance will lead to energy consumption of the cold source and the heat source, and affect the air outlet efficiency of the air-conditioning box. The increase in energy consumption of the air-conditioning box will reduce the endurance of new energy vehicles. The series arrangement of the heat source and the cold source will also increase the lateral layout space of the air-conditioning box, which is not conducive to the miniaturization of the air-conditioning box. In view of the above problems, the vehicle air-conditioning box needs to be improved.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute the prior art known to those skilled in the art. Summary of the invention

[0005] In view of the problems in the prior art, the object of the present invention is to provide a vehicle air-conditioning box and a car air conditioner, wherein the vehicle air-conditioning box has a compact structure, occupies a small space, has low energy consumption and high air outlet efficiency.

[0006] An embodiment of the present invention provides a vehicle air-conditioning box, comprising an air inlet box, a blower and a distribution box connected in sequence, characterized in that an indoor heater and an indoor cooler are arranged between the blower and the distribution box, the indoor heater and the indoor cooler are arranged at a preset angle, the distribution box comprises an air mixing chamber, the air outlet of the indoor heater and the air outlet of the indoor cooler are connected to the air mixing chamber; the air inlet side of the indoor heater and the air inlet side of the indoor cooler are provided with a plurality of partitions and a first damper; the partitions comprise a first partition, a second partition, a third partition and a fourth partition; wherein,

[0007] When the first damper is in the first position, two ends of the first damper are respectively connected to the first partition and the second partition, and separate the air inlet of the indoor heater from the air outlet of the blower;

[0008] When the first damper is in the second position, the first damper is not connected to the first partition, the second partition, the third partition, and the fourth partition, and the air inlet of the indoor heater is connected to the air inlet of the indoor cooler and the air outlet of the blower;

[0009] When the first damper is in the third position, two ends of the first damper are respectively connected to the third partition and the fourth partition, and separate the air inlet of the indoor heater from the air outlet of the blower.

[0010] In some embodiments, at least one second damper is disposed on the air outlet side of the indoor refrigerator, and the air outlet volume of the indoor refrigerator is controlled by the second damper.

[0011] In some embodiments, the air inlet box is provided with a circulating air inlet and a third damper for controlling the opening of the circulating air inlet.

[0012] In some embodiments, the distribution box is provided with at least one air outlet and a fourth damper for controlling the opening of the air outlet.

[0013] In some embodiments, the indoor heater is disposed at the bottom of the air inlet side of the indoor cooler.

[0014] In some embodiments, the first damper is in a first position, at least one of the second dampers is in a first position, the third damper is in a first position or a second position, and at least one of the fourth dampers is in a first position. When the indoor cooler is running, the air conditioning box performs a first function.

[0015] In some embodiments, the first damper is in the second position, the second damper is in the second position, the third damper is in the first position or the second position, and at least one of the fourth dampers is in the first position. When the indoor heater is running, the air conditioning box performs a second function.

[0016] In some embodiments, the first damper is in a first position, at least one of the second dampers is in a second position, the third damper is in a first position or a second position, and at least one of the fourth dampers is in a first position, and when the indoor heater and the indoor cooler are in operation, the air conditioning box performs a third function.

[0017] In some embodiments, when the first damper is in the third position, the second damper is in the second position, the third damper is in the first position or the second position, at least one of the fourth dampers is in the first position, and the indoor heater and the indoor cooler are turned on, the air conditioning box performs a fourth function.

[0018] An embodiment of the present invention further provides an automobile air conditioner, comprising the vehicle air conditioning box as described in any one of the above items.

[0019] The vehicle air conditioning box and automobile air conditioner provided by the present invention have the following advantages:

[0020] By adjusting the specific position of the first air door, the indoor heater and the indoor cooler can be set in series or in parallel, thereby reducing the wind resistance of hot air and cold air in the demand mode and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objectives and advantages of the present invention will become more apparent from a reading of the detailed description of non-limiting embodiments made with reference to the following accompanying drawings.

[0022] Figure 1 It is a structural schematic diagram of a vehicle air conditioning box provided by an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the principle of a vehicle air conditioning box in a cooling working mode according to an embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of the principle of a vehicle air conditioning box in a heating working mode according to an embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of the principle of a vehicle air conditioning box in a temperature adjustment working mode according to an embodiment of the present invention;

[0026] Figure 5 It is a schematic diagram of the principle of a vehicle air conditioning box in heating and maximum dehumidification modes according to an embodiment of the present invention;

[0027] Figure 6 It is a structural schematic diagram of a vehicle air conditioning box according to another embodiment of the present invention.

[0028] Reference numerals:

[0029] 10 Air inlet box 61 First partition

[0030] 20 Blower 62 Second partition

[0031] 30 Distribution box 63 Third partition

[0032] 31 First air outlet 64 Fourth partition

[0033] 32 Second air outlet 71 First air door

[0034] 33 Third air outlet 72 Second air door

[0035] 34 Fourth air outlet 73 Third air door

[0036] 40 Indoor heater 74 Fourth damper

[0037] 50 Indoor Cooler 80 Filter

[0038] 90 Drainage structure DETAILED DESCRIPTION

[0039] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0040] In the representations of the present application, the representations with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the represented specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples represented in the present application and the features of the different embodiments or examples, unless they contradict each other.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the representation of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] It should be further understood that the terms "comprises" and "includes" indicate the presence of features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Exceptions to this definition will only occur when the combination of elements, functions, steps or operations is inherently mutually exclusive in some way.

[0043] In order to solve the problems in the prior art, the present invention provides a vehicle-mounted air conditioning box. Figure 1 FIG. 1 shows a schematic diagram of the structure of a vehicle air conditioning box provided by an embodiment of the present invention. Figure 1 As shown, the vehicle air conditioner box includes an air inlet box 10, a blower 20 and a distribution box 30 connected in sequence. Specifically, an indoor heater 40 and an indoor cooler 50 are arranged between the blower 20 and the distribution box 30, and the indoor heater 40 and the indoor cooler 50 are arranged at a preset angle. The distribution box 30 includes an air mixing chamber, and the air outlet of the indoor heater 40 is connected to the air mixing chamber; the air inlet side of the indoor heater 40 and the air inlet side of the indoor cooler 50 are provided with a plurality of partitions and a first damper 71; the partitions include a first partition 61, a second partition 62, a third partition 63 and a fourth partition 64;

[0044] When the first damper 71 is in the first position, the two ends of the first damper 71 are connected to the first partition 61 and the second partition 62 respectively, and separate the air inlet of the indoor heater 40 from the air inlet of the blower 20. It should be noted that since the damper is used to adjust the air inlet and air outlet of each air inlet and outlet, the damper can be adjusted to multiple positions to meet the needs of different air volumes passing through the damper. Therefore, Figure 1 The damper represented by the dotted line is the position where the damper represented by the solid line can be adjusted, and is not an actual damper.

[0045] When the first damper 71 is in the second position, the first damper 71 is not connected to the first partition 61, the second partition 62, the third partition 63, and the fourth partition 64, and the air inlet of the indoor heater 40 is connected to the air inlet of the indoor cooler 50 and the air outlet of the blower 20. It should be noted that the second position of the first damper 71 refers to all positions where the first damper is not in contact with the partitions, and is therefore not limited to the position shown in the figure. In actual use, the second position of the first damper 71 can be adjusted according to actual needs.

[0046] When the first damper 71 is at the third position, both ends of the first damper 71 are connected to the third partition 63 and the fourth partition 64 respectively, and the air inlet of the indoor heater 40 is separated from the air outlet of the blower 20 .

[0047] By adjusting the specific position of the first damper 71, the indoor heater 40 and the indoor cooler 50 can be connected in series or in parallel, thereby reducing the wind resistance of hot air and cold air in the demand mode and reducing energy consumption.

[0048] Furthermore, if Figure 1 As shown, at least one second damper 72 is provided on the air outlet side of the indoor cooler 50, and the air volume of the air outlet of the indoor cooler 50 is controlled by the second damper 72. It should be noted that the damper movement position in this article is adjusted by a damper driver, and the damper driver can be, for example, a gear or a connecting rod mechanism. According to actual needs, a damper driver can be provided to synchronously drive multiple dampers to rotate, saving the number of motors required.

[0049] Furthermore, if Figure 1 As shown, the air inlet box 10 is provided with a circulating air inlet and a third damper 73 for controlling the opening of the circulating air inlet. In this embodiment, the air inlet box 10 is provided with two circulating air inlets, and external fresh air can be introduced into the air inlet box 10 through one circulating air inlet, and the vehicle circulating air can be introduced into the air inlet box 10 through the other circulating air inlet. The third damper 73 is in the first position, indicating that one of the circulating air inlets for introducing the vehicle circulating air or the external fresh air is open, and the third damper 73 is in the second position, indicating that the other one of the circulating air inlets for introducing the vehicle circulating air or the external fresh air is open.

[0050] Furthermore, if Figure 1 As shown, the distribution box 30 is provided with at least one air outlet and a fourth air door 74 for controlling the opening of the air outlet. In this embodiment, the distribution box 30 is provided with four air outlets, namely the first air outlet 31, the second air outlet 32, the third air outlet 33 and the fourth air outlet 34. A fourth air door 74 for adjusting the air volume of each air outlet is provided on the side of each air outlet close to the indoor cooler 50. Each air outlet is used, for example, for defrosting, blowing on the face, blowing on the front foot and blowing on the rear foot. The number of air outlets of the distribution box 30 is not limited to the four shown above, and a specific number can be set according to actual needs.

[0051] For further information, please refer to Figure 1 The vehicle air conditioner box further includes a filter 80, which is disposed between the air outlet side of the blower 20 and the air inlet side of the indoor heater 40 and the indoor cooler 50. The filter 80 can filter the airflow entering the distribution box 30 or the air inlet box 10, so that the airflow blowing to the passenger compartment is cleaner. Figure 6As shown, in another embodiment, a filter 80 may be provided between the air outlet side of the air inlet box 10 and the air inlet side of the blower 20 to filter the air before the circulating air enters the blower 20 .

[0052] Furthermore, the blower 20 in this embodiment may be a double laminar flow blower, which can reduce energy consumption, but is not limited thereto, and may also be other existing blower types.

[0053] Furthermore, in the present embodiment, the indoor heater 40 is arranged at the bottom of the air inlet side of the indoor cooler 50, and a drainage structure 90 is provided at the bottom of the indoor cooler 50 for draining condensed water. Since the indoor heater 40 and the indoor cooler are arranged in series in the prior art, the occupied space in the axial direction (lateral direction) of the air-conditioning box will be increased, resulting in an excessively large volume of the air-conditioning box. Moreover, when the drainage structure 90 is provided at the bottom of the indoor cooler 50 in the prior art, the peripheral temperature of the drainage structure 90 is relatively low, and condensation water is easily generated around the drainage structure 90. The condensation water may cause corrosion and short circuit of the parts arranged around it. Therefore, it is difficult to arrange other parts around the space at the bottom of the indoor cooler 50 in the prior art. In the present embodiment, the indoor heater 40 is arranged at the bottom of the indoor cooler 50, so that the space at the bottom of the indoor cooler 50 can be utilized, thereby making the structure of the air-conditioning box compact and occupying less space, which is conducive to miniaturization of the air-conditioning box. It should be noted that the indoor heater 40 is disposed at the bottom of the indoor cooler 50 , and the ventilation air path of the indoor heater 40 can form a heat insulation layer at the bottom of the drainage structure 90 to avoid condensation.

[0054] Furthermore, if Figure 2 As shown, when the first damper 71 is in the first position, at least one second damper 72 is in the first position, the third damper 73 is in the first position, and at least one fourth damper 74 is in the first position, the indoor cooler 50 is running, and the air conditioner performs the first function. Here, the first function is the cooling function, and the indoor heater 40 and the indoor cooler 50 are in parallel mode. It should be noted that the second damper 72 in the first position means that the second damper 72 is open, that is, the cold air exchanged by the indoor cooler 50 can be discharged; the third damper 73 in the first position means that the first air inlet of the air inlet box 10 is open, and the fourth damper 74 in the first position means that the air outlet of the air distribution box 30 is open.

[0055] Specifically, Figure 2As shown, since the first damper 71 is in the first position, its two ends are connected to the first partition 61 and the second partition 62 respectively. Therefore, the circulating air entering through the air inlet of the air inlet box 10 will only enter the inlet of the indoor cooler 50 after being rectified and expanded by the blower 20. When the indoor cooler 50 is running, the circulating air will enter the air mixing chamber from the second damper 72 after heat exchange, and further blow into the passenger compartment through the second air outlet 32 ​​and the fourth air outlet 34. When the vehicle air conditioner performs the cooling function, the indoor heater 40 and the indoor cooler 50 are in parallel mode. The circulating air entering the air conditioner only flows through the indoor cooler 50 for heat exchange, but does not flow through the indoor heater 40. Therefore, it is not blocked by the indoor heater 40, so the wind resistance of the cold air is small, and the energy consumption of the indoor cooler 50 is saved.

[0056] Furthermore, if Figure 3 As shown, when the first damper 71 is in the second position, the second damper 72 is in the second position, the third damper 73 is in the second position, and at least one fourth damper 74 is in the first position, the indoor heater 40 is running, and the air conditioner performs the second function. Here, the second function is the heating function, and the indoor heater 40 and the indoor cooler 50 are in parallel mode. It should be noted that the second damper 72 in the second position means that the second damper 72 is closed, that is, the cold air exchanged by the indoor cooler 50 cannot be discharged; the third damper 73 in the second position means that the second air inlet of the air inlet box 10 is open.

[0057] Specifically, Figure 3 As shown, when the first damper 71 is in the second position, it is not connected to the first partition 61, the second partition 62, the third partition 63 and the fourth partition 64. Therefore, the circulating air entering through the air inlet of the air inlet box 10 will enter the inlet of the indoor heater 40 after being rectified and expanded by the blower 20, and after heat exchange, it will enter the air mixing chamber, and then be blown into the passenger compartment through the first air outlet 31 and the third air outlet 33. When the vehicle air conditioner performs the heating function, the indoor heater 40 and the indoor cooler 50 are in parallel mode, and the circulating air only flows through the indoor heater 40 for heat exchange, but does not flow through the indoor cooler 50, and is not blocked by the indoor cooler 50, so the impedance of the hot air is small, and the energy consumption of the indoor heater is saved.

[0058] Furthermore, if Figure 4 As shown, when the first damper 71 is in the second position, at least one second damper 72 is in the first position, the third damper 73 is in the first position, and the indoor cooler 50 and the indoor heater 40 are in operation, the air conditioner performs the third function. Here, the third function is the temperature adjustment mode, and the indoor heater 40 and the indoor cooler 50 are in parallel mode. Specifically, as Figure 4As shown, the first damper 71 is not connected to each partition, so the circulating air entering the air inlet of the air inlet box 10 is rectified and expanded by the blower 20, and a part of the circulating air enters the indoor heater 40 for heat exchange, and the hot air after heat exchange enters the air mixing chamber; the other part of the circulating air enters the indoor refrigerator 50 for heat exchange, and the cold air after heat exchange enters the air mixing chamber, and the cold air and the hot air are mixed, and then discharged into the cockpit through the second air outlet 32, the third air outlet 33 and the fourth air outlet 34, so as to meet different usage requirements and improve the comfort of the driver and passengers. It should be noted that the mixing ratio of cold air and hot air depends on the air volume entering the indoor heater 40 controlled by the first damper 71 and the cold air volume discharged controlled by the second damper 72.

[0059] Furthermore, if Figure 5 As shown, when the first damper 71 is in the third position, the second damper 72 is in the second position, the third damper 73 is in the second position, at least part of the fourth damper 74 is in the first position, and the indoor heater 40 and the indoor cooler 50 are turned on, the air conditioner performs the fourth function. Here, the fourth function is the heating and maximum dehumidification mode, and the indoor heater 40 and the indoor cooler 50 are in series mode. Specifically, as Figure 5 As shown, the two ends of the first damper 71 are connected to the two ends of the third partition 63 and the fourth partition 64 respectively. At this time, the air inlet of the indoor heater 40 is separated from the air outlet of the blower 20. The circulating air after rectification and expansion by the blower 20 will only enter the indoor cooler 50 for heat exchange first. The cold air after heat exchange will further pass through the indoor heater 40 for heat exchange. The hot air after heat exchange enters the air mixing chamber and is blown into the passenger compartment through the first air outlet 31 and the third air outlet 33. After the circulating air is first heat exchanged by the indoor cooler 50, the water vapor in the air condenses into water, which is collected and discharged for dehumidification, and then heat exchange is performed to form hot air. Therefore, the humidity of the hot air blown into the passenger compartment is low, which improves the riding comfort of the passengers and avoids excessive humidity in the car, which causes fogging of the car window glass.

[0060] This embodiment also provides a car air conditioner, including an air duct and the above-mentioned car air conditioner box, the outlet of the distribution box of the car air conditioner box is connected to the air duct, and the air duct is used to transport airflow to the passenger compartment. The car air conditioner can achieve all the technical effects of the above-mentioned car air conditioner, which will not be repeated here.

[0061] In summary, the vehicle air conditioning box and automobile air conditioner provided by the present invention have the following advantages:

[0062] By adjusting the specific position of the first air door, the indoor heater and the indoor cooler can be set in series or in parallel, thereby reducing the wind resistance of hot air and cold air in the demand mode and reducing energy consumption.

[0063] By arranging the indoor heater at the bottom of the indoor refrigerator, the space at the bottom of the indoor refrigerator can be utilized, thereby making the structure of the air-conditioning box compact and occupying less space, which is conducive to miniaturization of the air-conditioning box.

[0064] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A vehicle air conditioning box, comprising an air inlet box, a blower and a distribution box connected in sequence, characterized in that: An indoor heater and an indoor cooler are arranged between the blower and the distribution box, the indoor heater and the indoor cooler are arranged at a preset angle, the distribution box includes an air mixing chamber, the air outlet of the indoor heater and the air outlet of the indoor cooler are connected to the air mixing chamber; a plurality of partitions and a first damper are arranged on the air inlet side of the indoor heater and the air inlet side of the indoor cooler; the partitions include a first partition, a second partition, a third partition and a fourth partition; wherein, When the first damper is in the first position, two ends of the first damper are respectively connected to the first partition and the second partition, and separate the air inlet of the indoor heater from the air outlet of the blower; When the first damper is in the second position, the first damper is not connected to the first partition, the second partition, the third partition, and the fourth partition, and the air inlet of the indoor heater is connected to the air inlet of the indoor cooler and the air outlet of the blower; When the first damper is in the third position, two ends of the first damper are respectively connected to the third partition and the fourth partition, and separate the air inlet of the indoor heater from the air outlet of the blower.

2. The vehicle air conditioning box according to claim 1, characterized in that: At least one second air door is provided on the air outlet side of the indoor refrigerator, and the air outlet volume of the indoor refrigerator is controlled by the second air door.

3. The vehicle air conditioning box according to claim 2, characterized in that: The air inlet box is provided with a circulating air inlet and a third air door for controlling the opening of the circulating air inlet.

4. The vehicle air conditioning box according to claim 3, characterized in that: The distribution box is provided with at least one air outlet and a fourth damper for controlling the opening of the air outlet.

5. The vehicle air conditioning box according to claim 1, characterized in that: The indoor heater is arranged at the bottom of the air inlet side of the indoor cooler.

6. The vehicle air conditioning box according to claim 4, characterized in that: The first damper is in the first position, at least one of the second dampers is in the first position, the third damper is in the first position or the second position, and at least one of the fourth dampers is in the first position. When the indoor cooler is running, the air conditioning box performs a first function.

7. The vehicle air conditioning box according to claim 4, characterized in that: The first damper is in the second position, the second damper is in the second position, the third damper is in the first position or the second position, and at least one of the fourth dampers is in the first position. When the indoor heater is running, the air conditioning box performs a second function.

8. The vehicle air conditioning box according to claim 4, characterized in that: The first damper is in the second position, at least one of the second dampers is in the first position, the third damper is in the first position or the second position, and at least one of the fourth dampers is in the first position. When the indoor heater and the indoor cooler are in operation, the air conditioning box performs a third function.

9. The vehicle air conditioning box according to claim 4, characterized in that: When the first damper is in the third position, the second damper is in the second position, the third damper is in the first position or the second position, at least one of the fourth dampers is in the first position, and the indoor heater and the indoor cooler are turned on, the air conditioning box performs the fourth function.

10. An automobile air conditioner, characterized in that: It comprises a vehicle air conditioning box as described in any one of claims 1 to 9.

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