Air conditioning system and vehicle

Abstract

The utility model relates to an air conditioning system, in particular for a vehicle, which comprises an air guide element (5), a flow channel (8), an air inlet (6) and an air outlet (7), a cylindrical roller (6) which is rotatably arranged with respect to the air guide element (5); and a lifting element (7) which is designed to change the position of the roller (6) relative to the flow channel (8) in order to set the flow cross-section of the flow channel (8). In addition, the utility model relates to a vehicle.

Description

Technical Field

[0001] The utility model relates to an air conditioning system and a vehicle with the air conditioning system. Background Art

[0002] A vehicle having an adjustable radiator grille flap (active grille, AGS) is known from US 2014 / 0290599 A1. Utility Model Content

[0003] An air conditioning system according to the present invention includes an air guide element and a cylindrical roller rotatably disposed relative to the air guide element, wherein the air guide element defines a flow channel. Furthermore, the air conditioning system includes a lifting element configured to change the position of the roller relative to the flow channel to thereby adjust the flow cross section of the flow channel.

[0004] The basic concept of the present invention is to regulate the air flow through an air conditioning system using a rotatably mounted roller. This has the following advantages: the force or torque required to regulate the air flow is less dependent on the velocity of the flowing air than in conventional flap-based air conditioning systems. In conventional flap-based air conditioning systems, the force acting on the flap due to the air flow, and therefore the torque required to open the flap, is largely dependent on the flap's opening angle. Furthermore, the use of rotatably mounted rollers has been shown to allow ice that forms in the air conditioning system at low temperatures to melt more easily than in flap-based systems. Consequently, the air conditioning system according to the present invention is less prone to malfunction.

[0005] In one embodiment, the lifting element has a spindle drive having a spindle and an element that can be moved translationally by the spindle, in particular a gear, which is connected to a roller. For example, it can be provided that to adjust the air flow, the spindle is rotated, whereby the gear and the roller connected thereto are moved rotationally and simultaneously translationally, thereby changing the flow cross section. This allows the flow cross section to be precisely adjusted.

[0006] Preferably, the diameter of the roller is twice as large as the height of the flow channel, thereby ensuring that the roller can completely seal the flow channel.

[0007] The roller can be, for example, a hollow profile, which is particularly made of extruded plastic. Therefore, the roller has a low weight, which also allows the remaining components of the air conditioning system to be relatively slim.

[0008] In one variant, the air guiding element has a receiving cavity which is large enough to allow the roller to be moved into the receiving cavity in order to completely free up the flow cross section of the flow channel.

[0009] Preferably, an edge is formed at the transition between the receiving chamber and the flow channel, wherein the roller is rotatably mounted so that when the roller is moved into the receiving chamber, it rotates past the edge in the opposite direction of the lifting direction. Thus, any ice that may have accumulated on the roller is moved away from the edge when the roller is moved into the receiving chamber. As a result, the air conditioning system according to the present invention operates very reliably even under difficult climatic conditions, particularly at low temperatures.

[0010] It is also conceivable that the air conditioning system includes at least one guide element for guiding the roller, in particular wherein the lifting element is arranged at the end of the roller and the guide element is arranged at the opposite side of the roller. The guide element ensures a linear and stable movement of the roller even if transverse forces act on the roller due to air flow and / or its own weight.

[0011] In another embodiment, the air conditioning system includes a further cylindrical roller rotatably arranged relative to the air deflecting element, wherein the axes of the rollers lie in a common plane and / or are arranged at an obtuse angle relative to one another. By using two or more rollers, the air conditioning system according to the invention can be adapted in terms of its shape to the front of the vehicle in a technically simple manner.

[0012] In this case, it is conceivable that the lifting element is arranged between the rollers and is configured to simultaneously change the position of the two rollers relative to the flow channel. Thus, the lifting element is sufficient for simultaneously setting the position of multiple rollers, thereby saving resources and weight.

[0013] The object is also achieved by a vehicle according to the present invention, comprising an air conditioning system according to the present invention, a radiator grille, and a radiator, wherein the roller of the air conditioning system is arranged between the radiator grille and the radiator. The advantages already discussed for the air conditioning system apply in the same manner to the vehicle according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The preferred embodiment is described in detail with reference to the following drawings.

[0015] Figure 1 A schematic diagram showing an embodiment of a vehicle according to the present invention;

[0016] Figure 2 Shown by Figure 1 The vehicle includes an air conditioning system according to the present invention

[0017] Schematic diagram of the system;

[0018] Figure 3 Show Figure 2 a schematic diagram of a portion of an air conditioning system in;

[0019] Figure 4 Shown by Figure 2 A schematic diagram of a lifting element included in an air conditioning system;

[0020] as well as

[0021] Figure 5 Shown by Figure 2 Schematic diagram of the guide elements included in the air conditioning system. DETAILED DESCRIPTION

[0022] exist Figure 1 The vehicle 1 shown in FIG. 1 is a passenger car. It comprises a radiator grille 2 and a radiator 3 for cooling other vehicle components such as an engine (not shown).

[0023] Furthermore, the vehicle 1 comprises an air conditioning system 4 which is arranged between the radiator grille 2 and the radiator 3 .

[0024] Figure 2 A schematic cross-sectional view of an air conditioning system 4 is shown.

[0025] The air conditioning system 4 comprises an air guiding element 5 , three cylindrical rollers 6 and two lifting elements 7 , by means of which the position of the rollers 6 relative to the air guiding element 5 can be changed.

[0026] It goes without saying that this is not to be understood as restrictive. Embodiments of the air guide system 4 according to the invention are also conceivable, which have more or fewer rollers and / or lifting elements than three rollers 6 and / or two lifting elements 7, for example only a single roller 6 and only a single lifting element 7.

[0027] In the present embodiment, the air guiding element 5 is designed as an injection-molded component made of plastic. The air guiding element can be designed in one piece or in multiple pieces.

[0028] The air guiding element 5 defines, by its shape, a flow channel 8 through which air can flow from the radiator grille 2 to the radiator 3 .

[0029] Furthermore, the air guiding element 5 has a receiving space 9 which is large enough to accommodate the roller 6 .

[0030] As in Figure 2 As shown in FIG, an edge 10 is formed at the transition between the receiving space 9 and the flow channel 8.

[0031] Three cylindrical rollers 6 are arranged rotatably relative to the air guiding element 5 .

[0032] The roller is configured as an extruded hollow profile made of plastic and is therefore particularly light. Alternatively, however, the roller 6 can also comprise a foam core which imparts a higher stability to the roller.

[0033] The diameter of each of the rollers 6 is twice as large as the height of the flow channel 8. In this embodiment, the diameter of the rollers 6 is 70 mm. The flow channel 8 is 35 mm high.

[0034] The roller 6 serves to predetermine the flow cross section of the flow channel 8 and thus the air flow between the radiator grille 2 and the radiator 3. For this purpose, the position of the roller 6 relative to the air guiding element 5 can be adjusted in a targeted manner by means of the lifting element 7.

[0035] In the present exemplary embodiment, it is provided that the roller 6 can be positioned in the flow channel 8 in such a way that it completely closes the flow channel 8 .

[0036] And if Figure 2 If the roller 6 is located in the receiving space 9 , as indicated by the dashed line, the flow cross section of the flow channel 8 is completely freed up and air can flow unhindered from the radiator grille 2 to the radiator 3 .

[0037] Figure 3 The arrangement of three rollers 6 relative to one another is shown. In the present exemplary embodiment, the axes 11 of the rollers 6 lie in a common plane and each enclose an obtuse angle 12 relative to one another.

[0038] This plane is a horizontal plane, taking into account the installation situation in the vehicle 1. In simplified representation, the rollers 6 reproduce the vehicle front of the vehicle 1 in the described arrangement.

[0039] Each of the lifting elements 7 is arranged here between two of the rollers 6. The lifting elements 7 are designed to change the position of all rollers 6 relative to the flow channel 8 simultaneously.

[0040] The rollers 6 can therefore be moved jointly or simultaneously into and / or out of the receiving space 9 by means of the lifting elements 7 .

[0041] Figure 4 A schematic diagram of a lifting element 7 is shown. The lifting element comprises a spindle drive 13 having a spindle 14 and an element 15 that is movable in translation via the spindle 14. In the present embodiment, the translationally movable element 15 is a gear 16 that is fixedly connected to at least one of the adjacent rollers 6, in particular to the end face of the roller 6.

[0042] To adjust the air flow, the spindle 14 can be activated, whereby the gear 16 moves upward or downward on the spindle 14 and rotates at the same time. Correspondingly, the roller 6 connected to the gear 16 also moves upward (i.e., in the direction of the receiving space 9) or downward (i.e., in the direction of the flow channel 8) along the spindle 14 by means of a rotational movement.

[0043] In the present exemplary embodiment, the lifting elements 7 are oriented such that, when they are activated, the rollers 6 are moved translationally with their axes 11 in a plane perpendicular to the connecting line between the cooling grid 2 and the radiator 3 .

[0044] The rollers 6 are rotatably supported by the lifting elements 7 so that when they are moved into the receiving spaces 9, they are each rotated past the edge 10 in the opposite direction of the lifting direction. Figure 2 This is schematically indicated with the aid of arrows.

[0045] Any ice that can form on the radiator grille side of roller 6 when vehicle 1 is operated at low temperatures is rotated away from edge 10 when roller 6 is moved into receiving space 9. This prevents ice from entering the gap between roller 6 and the wall of receiving space 9, which could lead to roller 6 getting stuck in the worst case.

[0046] Correspondingly, the air conditioning system 4 according to the present invention works very reliably even under difficult climatic conditions, especially at low temperatures.

[0047] In this embodiment, the air conditioning system 4 further includes two guide elements 17. The guide elements 17 are respectively arranged Figure 3 On the end side of the outer roller 6 of the roller arrangement facing away from the lifting element.

[0048] Figure 5 A schematic diagram of one of the guide elements 17 is shown. In the present embodiment, the guide elements 17 each comprise a guide wheel 18 connected to an adjacent roller 6 and a rail 19 on which the guide wheel 18 can move upwards or downwards when the roller 6 is moved by the lifting element 7.

[0049] It goes without saying that other types of guide elements 17 are also conceivable.

[0050] The guide elements 17 ensure that all rollers 6 move uniformly and linearly upwards or downwards when the flow cross section of the flow channel 8 is changed and / or set to a desired size in order to adjust the air flow.

Claims

1. An air conditioning system, comprising: an air guiding element (5), said air guiding element defining a flow channel (8), a cylindrical roller (6) rotatably arranged about the air guide element (5), and A lifting element (7) is configured to change the position of the roller (6) relative to the flow channel (8) so as to set the flow cross section of the flow channel (8).

2. An air conditioning system according to claim 1, wherein the lifting element (7) includes a spindle drive (13), the spindle drive having a spindle (14) and an element (15) that can move translationally via the spindle (14), wherein the roller (6) is connected to the element (15) that can move translationally.

3. The air conditioning system according to claim 1, wherein the translationally movable element (15) is a gear (16).

4. The air conditioning system according to any one of claims 1 to 3, wherein the diameter of the roller (6) is twice as large as the height of the flow channel (8).

5. An air conditioning system according to any one of claims 1 to 3, wherein the roller (6) comprises a hollow profile.

6. The air conditioning system of claim 5, wherein the hollow profile is extruded.

7. An air conditioning system according to any one of claims 1 to 3, wherein the air-guiding element (5) includes a receiving chamber (9) that is large enough to allow the roller (6) to move into the receiving chamber so as to completely release the flow cross section of the flow channel (8).

8. The air conditioning system according to claim 7, wherein an edge (10) is formed at a transition between the accommodating chamber (9) and the flow channel (8).

9. The air conditioning system according to claim 8, wherein the roller (6) is rotatably mounted so that when the roller moves into the receiving space (9), the roller rotates past the edge (10) counter to the lifting direction.

10. An air conditioning system according to any one of claims 1 to 3, wherein the air conditioning system comprises at least one guide element (17) for guiding the roller (6).

11. The air conditioning system according to claim 10, wherein the lifting element (7) is provided at an end side of the roller (6) and the guide element (17) is provided at an opposite side of the roller (6).

12. An air conditioning system according to any one of claims 1 to 3, wherein the air conditioning system includes a further cylindrical roller (6) rotatably arranged relative to the air guide element (5), the axes (11) of the rollers (6) being located in a common plane and / or being arranged at an obtuse angle (12) relative to each other.

13. The air conditioning system according to claim 12, wherein the lifting element (7) is arranged between the rollers (6) and is configured to simultaneously change the position of both rollers (6) relative to the flow channel (8).

14. The air conditioning system according to claim 1, wherein the air conditioning system is used in a vehicle (1).

15. A vehicle comprising an air conditioning system (4) according to any one of claims 1 to 14, a cooler grille (2) and a radiator (3), wherein the roller (6) of the air conditioning system (4) is arranged between the cooler grille (2) and the radiator (3).

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