Installation structure for a drainage system and thermal management device

Abstract

The application relates to the technical field of heat management, and particularly provides a mounting structure for a drainage system and a heat management device. The mounting structure for the drainage system comprises a shell and a partition plate. The partition plate is arranged in the shell, and is arranged at an angle between the partition plate and the lower bottom plate of the shell. The partition plate is used for mounting a warm air heater of the heat management device. The partition plate divides the shell into a first mounting cavity and a second mounting cavity. Ventilation openings are arranged through the partition plate. The device evaporates condensate water to achieve the purpose of drainage. The condensate water on the evaporator can be drained without connecting a drainage pipe. The heat management device is not externally connected with the drainage pipe. The device is convenient to install and maintain, and the indoor and surrounding environment is more beautiful.

Description

Technical Field

[0001] This invention relates to the field of thermal management technology, and more specifically, to an installation structure and thermal management device for a drainage system. Background Technology

[0002] Some large mobile equipment, such as locomotives and radars, generate a lot of heat during long-term operation, which raises the ambient temperature around the equipment and affects its stable operation. Therefore, it is necessary to regulate the ambient temperature around the equipment through a thermal management device and drainage system.

[0003] When the thermal management unit's drainage system is operating, the refrigerant in the evaporator absorbs heat from the indoor air and evaporates into a vapor with lower pressure and temperature. This vapor is then drawn into the compressor and compressed, increasing both the pressure and temperature of the refrigerant before being discharged into the condenser. In the condenser, the refrigerant vapor condenses into a higher-pressure liquid by releasing heat to the outdoor air. The refrigerant liquid then passes through a capillary tube, reducing its pressure and temperature, before re-entering the evaporator to evaporate again. This cycle repeats continuously, thereby lowering the indoor temperature.

[0004] In existing technology, when the evaporator absorbs heat and evaporates the refrigerant, it will produce a certain amount of water. Currently, the water produced by refrigeration is usually discharged to the outside through a drain pipe. The external drain pipe is exposed, which is not only unsightly but also prone to leakage. Summary of the Invention

[0005] The present invention aims to provide an installation structure and thermal management device for a drainage system to solve at least one aspect of the above-mentioned technical problems.

[0006] To address the above problems, the present invention proposes the following technical solution:

[0007] An installation structure for a drainage system includes a housing and a partition, the partition being installed inside the housing and angled to the lower base plate of the housing, and the partition being used to install a warm air heater of a thermal management device.

[0008] The partition divides the housing into a first mounting cavity and a second mounting cavity. A vent is provided through the partition. The warm air heater is installed in the first mounting cavity and is positioned at a distance from the partition. A flow channel is formed between the warm air heater and the partition. The vent is connected to the flow channel. An outlet is provided at the upper end of the flow channel facing the first mounting cavity.

[0009] The second mounting cavity is used to install the evaporator of the thermal management device. The housing is provided with an air inlet, which is arranged facing the air inlet side of the evaporator. The angle between the side wall of the partition facing the evaporator and the lower bottom plate of the housing is β, where β is an acute angle.

[0010] The present invention provides an installation structure and thermal management device for a drainage system, which, compared with the prior art, has, but is not limited to, the following beneficial effects:

[0011] In the installation structure of the drainage system, the shell serves as the mounting carrier. The angle between the side wall of the baffle facing the evaporator and the lower base plate of the shell is acute, so the baffle is inclined within the shell. The warm air heater mounted on the baffle is also inclined. During operation, airflow enters the second mounting chamber through the air inlet, passes through the evaporator, and the condensate on the evaporator wets the airflow, making it carry water vapor. As the water-laden airflow flows from the evaporator to the baffle and passes through the vent, some of the water vapor is heated and evaporated by the warm air heater, while the remaining airflow carries the remaining water vapor. The air enters the channel through the vent and exits through the outlet. The baffle and heater are tilted so that the water vapor in the airflow is sprayed onto the tilted surface of the heater, which then heats and evaporates the water vapor. This device achieves drainage by evaporating condensate. This drainage structure eliminates the need for connecting a drain pipe to the evaporator, saving the need to connect a drain pipe to the thermal management device. This not only makes installation more convenient and maintenance simpler, but also makes the indoor and surrounding environment more aesthetically pleasing.

[0012] Preferably, the installation structure for the drainage system further includes a connecting plate, which is used to fix the warm air heater to the side wall of the partition facing the vent, so that the warm air heater is set at a distance from the partition. One end of the connecting plate is connected to the end of the warm air heater, and the other end of the connecting plate is fixedly connected to the partition. Both ends of the warm air heater are sealed to the partition through the connecting plate.

[0013] Preferably, a drain plate is provided above the warm air heater, the drain plate is set at an angle to the partition, and the angle between the drain plate and the partition is smaller than the supplementary angle of β.

[0014] Preferably, the installation structure for the drainage system further includes an installation plate located within the second installation cavity, and the installation plate is angled relative to the lower bottom plate of the housing.

[0015] The mounting plate is provided with a mounting port, and the evaporator is installed at the mounting port on the mounting plate and is positioned facing the side of the partition. The angle between the side wall of the mounting plate away from the evaporator and the lower bottom plate of the shell is α, where α is an acute angle.

[0016] Preferably, the installation structure for the drainage system further includes a water receiving cavity, which is disposed within the first installation cavity and located below the warm air heater, and the evaporator fan of the thermal management device is installed within the first installation cavity and located in the middle of the water receiving cavity.

[0017] Preferably, a mounting platform is provided inside the housing, the mounting platform is fixed to the lower bottom plate of the housing, the lower end of the partition is fixed to the mounting platform, and the partition and the mounting platform cooperate to divide the housing into a first mounting cavity and a second mounting cavity;

[0018] The mounting platform and the inner wall of the first mounting cavity enclose each other to form the water receiving cavity.

[0019] Preferably, a support platform is provided in the middle of the water receiving cavity, the evaporator fan is installed on the support platform, an air outlet is provided on the support platform, and the air outlet on the support platform is connected to the exhaust port of the evaporator fan through an air duct.

[0020] Preferably, the mounting platform is provided with a plurality of water passage holes, which are used to connect the first mounting cavity and the second mounting cavity.

[0021] The present invention also provides a thermal management device, including an installation structure for a drainage system as described above.

[0022] Preferably, the thermal management device further includes an evaporator, a warm air heater, and an evaporating fan. The evaporator is installed in the second mounting cavity of the mounting structure for the drainage system, and the warm air heater and the evaporating fan are both installed in the first mounting cavity of the mounting structure for the drainage system, with the warm air heater disposed between the evaporator and the evaporating fan. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the drainage system installation structure and thermal management device according to an embodiment of the present invention;

[0024] Figure 2 Embodiments of the present invention Figure 1 Enlarged view of a portion of point A in the middle;

[0025] Figure 3 This is a bottom schematic diagram of the installation structure for the drainage system according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic cross-sectional view of the installation structure and thermal management device for the drainage system according to an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Housing, 11. First mounting cavity, 12. Second mounting cavity, 13. Air inlet, 14. Water inlet, 15. Mounting platform, 16. Support platform, 17. Air outlet, 18. Water passage, 2. Partition, 21. Ventilation opening, 22. Flow channel, 23. Outlet, 3. Connecting plate, 4. Drainage plate, 5. Mounting plate, 50. Mounting port, 6. Evaporator, 7. Warm air heater, 8. Evaporator fan. Detailed Implementation

[0029] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0030] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] It should be noted that in the XYZ coordinate system provided in this article, the positive direction of the X-axis represents the right, and the negative direction of the X-axis represents the left; the positive direction of the Y-axis represents the front, and the negative direction of the Y-axis represents the back; the positive direction of the Z-axis represents the top, and the negative direction of the Z-axis represents the bottom. The meanings of the Z-axis, X-axis, and Y-axis are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0032] See Figures 1-4 The present invention provides an installation structure for a drainage system of a thermal management device and a drainage system for a thermal management device. The installation structure for the drainage system includes a housing 1 and a partition 2. The partition 2 is installed inside the housing 1. The partition 2 is set at an angle to the lower bottom plate of the housing 1. The partition 2 is used to install the warm air heater 7 of the thermal management device.

[0033] The partition 2 divides the housing 1 into a first mounting cavity 11 and a second mounting cavity 12. A vent 21 is provided through the partition 2. The warm air heater 7 is installed in the first mounting cavity 11 and is positioned at a distance from the partition 2. A flow channel 22 is formed between the warm air heater 7 and the partition 2. The vent 21 is connected to the flow channel 22. An outlet 23 is provided at the upper end of the flow channel 22 facing the first mounting cavity 11.

[0034] See Figure 1 and Figure 4The second mounting cavity 12 is used to install the evaporator 6 of the thermal management device. The housing 1 is provided with an air inlet 13, which is arranged facing the air inlet side of the evaporator 6. The angle between the side wall of the partition 2 facing the evaporator 6 and the lower bottom plate of the housing 1 is β, where β is an acute angle.

[0035] Specifically, if the range of β is less than 90° and greater than or equal to 60°, then the partition 2 is inclined, and the warm air heater 7 is disposed on the partition 2, then the warm air heater 7 is also inclined.

[0036] The drainage system installation structure of this embodiment is used in a thermal management device. The partition 2 and the warm air heater 7 are inclined, so that the water vapor carried by the airflow ejected from the outlet 23 falls onto the surface of the warm air heater 7 in a parabolic manner, so that the water vapor can be evaporated by heating by the warm air heater 7. The arrangement of the warm air heater 7 and the flow channel 22 is such that when the airflow carrying water vapor flows into the flow channel 22, some of the water vapor can be evaporated by the action of the warm air heater 7, and some of the water vapor is ejected from the outlet 23 and falls onto the surface of the warm air heater 7, so that the water vapor can be evaporated by heating by the warm air heater 7.

[0037] In this embodiment, in the installation structure for the drainage system, the housing 1 serves as the installation carrier. The angle between the side wall of the partition 2 facing the evaporator 6 and the lower base plate of the housing 1 is an acute angle. Therefore, the partition 2 is inclinedly installed inside the housing 1, and the warm air heater 7 installed on the partition 2 is also inclined. During operation, the airflow enters the second installation cavity 12 through the air inlet 13 and passes through the evaporator 6. The condensate on the evaporator 6 wets the airflow, making the airflow contain water vapor. When the water vapor-laden airflow flows from the evaporator 6 to the partition 2 and passes through the vent 21, some of the water vapor in the airflow is aerated by the warm air heater 7. During thermal evaporation, a portion of the airflow carrying water vapor enters the flow channel 22 through the vent 21 and exits through the outlet 23. The baffle 2 and the warm air heater 7 are inclined, so that the water vapor in the ejected airflow is sprayed onto the inclined surface of the warm air heater 7, which facilitates further heating and evaporation of the water vapor by the warm air heater 7. In this device, the purpose of drainage is achieved by evaporating the condensate. This drainage structure eliminates the need to connect a drain pipe to the evaporator 6 to drain the condensate, saving the need to connect a drain pipe to the thermal management device. This not only makes installation more convenient and maintenance simpler, but also makes the indoor and surrounding environment more aesthetically pleasing.

[0038] See Figure 1Preferably, the installation structure for the drainage system further includes a connecting plate 3, which is used to fix the warm air heater 7 to the side wall of the partition 2 facing the vent 21, so that the warm air heater 7 is set at a distance from the partition 2. One end of the connecting plate 3 is connected to the end of the warm air heater 7, and the other end of the connecting plate 3 is fixedly connected to the partition 2. Both ends of the warm air heater 7 are sealed to the partition 2 through the connecting plate 3.

[0039] Specifically, the connecting plate 3 is fixed to the partition plate 2 by screws and bolts. There are two connecting plates 3, which are respectively fixed to both sides of the vertical direction of the vent 21 on the partition plate 2. The warm air heater 7 is fixedly installed between the two connecting plates 3. The two connecting plates 3, the warm air heater 7 and the partition plate 2 together form the flow channel 22.

[0040] In this embodiment, the connecting plate 3 is arranged such that the warm air heater 7 and the partition plate 2 are spaced apart, thus forming the flow channel 22. When the airflow enters the flow channel 22 from the vent 21, since the two ends of the warm air heater 7 are sealed to the partition plate 2 through the connecting plate 3, the airflow entering the flow channel 22 can only be ejected from the outlet 23. This facilitates the spraying of water vapor in the ejected airflow onto the inclined surface of the warm air heater 7, thereby making it easier for the warm air heater 7 to heat and evaporate the water vapor.

[0041] See Figure 4 Preferably, a drain plate 4 is provided above the warm air heater 7, the drain plate 4 is set at an angle to the partition 2, and the angle between the drain plate 4 and the partition 2 is smaller than the supplementary angle of β.

[0042] Specifically, the angle between the drainage plate 4 and the partition 2 is less than the supplementary angle of β. This structure causes the drainage plate 4 to be inclined downwards from the end away from the partition 2 to the end near the partition 2. If the angle between the plane where the drainage plate 4 is located and the partition 2 is equal to the supplementary angle of β, then the drainage plate 4 is horizontally positioned. When the angle between the plane where the drainage plate 4 is located and the partition 2 is greater than the supplementary angle of β, then the drainage plate 4 is inclined downwards from the end near the partition 2 to the end away from the partition 2. When the angle between the plane where the drainage plate 4 is located and the partition 2 is greater than or equal to the supplementary angle of β, it is not conducive to the water on the drainage plate 4 falling down for evaporation.

[0043] In this embodiment, some of the water vapor in the airflow is heated and evaporated by the warm air heater 7. A portion of the airflow carrying water vapor enters the flow channel 22 from the vent 21 and is ejected from the outlet 23. The partition 2 and the warm air heater 7 are inclined, so that the water vapor in the ejected airflow is sprayed onto the inclined surface of the warm air heater 7, which facilitates further heating and evaporation of the water vapor by the warm air heater 7. Another portion of the water vapor is sprayed onto the drain plate 4. The angle between the drain plate 4 and the partition 2 is smaller than the supplementary angle between the partition 2 and the lower bottom plate of the housing 1, so that the drain plate 4 is inclined downward from the end away from the partition 2 to the end closer to the partition 2. Thus, some water vapor is sprayed onto the drain plate 4, and the water droplets flow inclinedly along the drain plate 4 into the flow channel 22. Under the action of the warm air heater 7, the water droplets are heated and evaporated.

[0044] See Figure 4 Preferably, the installation structure for the drainage system further includes an installation plate 5, which is located inside the second installation cavity 12, and the installation plate 5 is angled to the lower bottom plate of the housing 1.

[0045] The mounting plate 5 is provided with a mounting port 50. The evaporator 6 is installed at the mounting port 50 on the mounting plate 5 and is positioned facing the partition plate 2. The angle between the side wall of the mounting plate 5 away from the evaporator 6 and the lower bottom plate of the housing 1 is α, where α is an acute angle.

[0046] Specifically, the air inlet 13 is located on the lower bottom plate of the housing 1, directly opposite the second mounting cavity 12. The mounting plate 5 is inclined above the air inlet 13 so that the mounting port 50 is located above the air inlet 13. The mounting plate 5 is inclined, and the evaporator 6 is mounted on the mounting plate 5 and is also inclined along with the mounting plate 5.

[0047] In this embodiment, the inclined mounting plate 5 facilitates sufficient contact between the airflow and the evaporator 6, thereby improving the evaporation efficiency within a certain range. The inclined mounting plate 5 also causes the evaporator 6 to be inclined, resulting in a certain amount of water flowing down from the mounting plate 5 and the evaporator 6 when the evaporator 6 absorbs heat and evaporates the refrigerant. The inclined mounting plate 5 and the evaporator 6 slow down the water flow, which helps to wet the airflow, allowing the airflow to carry water vapor and increasing the water spreading space, thus promoting water evaporation.

[0048] See Figure 4Preferably, the installation structure for the drainage system further includes a water receiving cavity 14, which is disposed within the first installation cavity 11 and located below the warm air heater 7. The evaporator fan 8 of the thermal management device is installed within the first installation cavity 11 and located in the middle of the water receiving cavity 14.

[0049] In this embodiment, when water droplets are sprayed onto the surface of the heater 7 or flow onto the surface of the heater 7 but do not have time to evaporate due to the action of the heater 7, they will flow down the heater 7 to the lower end of the heater 7 and then fall into the water receiving chamber 14. The water receiving chamber 14 is used to collect water droplets and expand the water spreading space. The heater 7 and the evaporator fan 8 work together to facilitate the evaporation of water in the water receiving chamber 14 to achieve the purpose of drainage.

[0050] Preferably, a mounting platform 15 is provided inside the housing 1, the mounting platform 15 is fixed to the lower bottom plate of the housing 1, the lower end of the partition 2 is fixed to the mounting platform 15, and the partition 2 and the mounting platform 15 cooperate to divide the housing 1 into a first mounting cavity 11 and a second mounting cavity 12.

[0051] The mounting platform 15 and the inner wall of the first mounting cavity 11 enclose each other to form the water receiving cavity 14.

[0052] Specifically, the two ends of the mounting platform 15 abut against the inner wall of the housing 1, and the two ends of the partition 2 also abut against the inner wall of the housing 1. The lower end of the partition 2 is fixed to the mounting platform 15 by screws.

[0053] In this embodiment, the mounting platform 15 provides a mounting carrier for the partition 2, and the mounting platform 15 is used to divide the housing 1 into a first mounting cavity 11 and a second mounting cavity 12, thus having a separating function; the mounting platform 15 and the inner wall of the first mounting cavity 11 enclose the water receiving cavity 14, which not only makes the structure of the water receiving cavity 14 simple, but also helps to save space and makes the area of ​​the water receiving cavity 14 larger, so that the water collected in the water receiving cavity 14 can be spread out, thereby facilitating evaporation and drainage.

[0054] See Figures 3-4 Preferably, a support platform 16 is provided in the middle of the water receiving cavity 14, the evaporator fan 8 is installed on the support platform 16, the support platform 16 is provided with an air outlet 17, and the air outlet 17 on the support platform 16 is connected to the exhaust port of the evaporator fan 8 through a duct.

[0055] In this embodiment, the support platform 16 is used to support the evaporator fan 8 so that the evaporator fan 8 is located in the middle of the water receiving chamber 14 and is not affected by the water in the water receiving chamber 14. The water is spread in the water receiving chamber 14 and is facilitated by the cooperation of the warm air heater 7 and the evaporator fan 8 to make the water in the water receiving chamber 14 evaporate and achieve the purpose of drainage.

[0056] See Figures 1-2 Preferably, the mounting platform 15 is provided with a plurality of water passage holes 18, which are used to connect the first mounting cavity 11 and the second mounting cavity 12.

[0057] In this embodiment, the drain hole is provided so that water in the second mounting cavity 12 can flow into the water receiving cavity 14 in the first mounting cavity 11 through the drain hole, so that the water in the water receiving cavity 14 can be evaporated by the cooperation of the warm air heater 7 and the evaporator fan 8 to achieve the purpose of drainage.

[0058] The present invention also provides a thermal management device, including an installation structure for a drainage system as described above.

[0059] Preferably, the thermal management device further includes an evaporator 6, a warm air heater 7, and an evaporator fan 8. The evaporator 6 is installed in the second mounting cavity 12 of the mounting structure for the drainage system. The warm air heater 7 and the evaporator fan 8 are both installed in the first mounting cavity 11 of the mounting structure for the drainage system, and the warm air heater 7 is disposed between the evaporator 6 and the evaporator fan 8.

[0060] In this embodiment, the inclined arrangement of the warm air heater 7 and the inclined arrangement of the evaporator 6 are beneficial to improving the evaporation of water vapor in the airflow through the warm air heater 7, so that the water in the airflow is drained during evaporation, eliminating the need to connect a drain pipe to the thermal management device. This not only makes installation more convenient and maintenance simpler, but also makes the indoor and surrounding environment more aesthetically pleasing.

[0061] While the disclosure is as stated above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this invention.

Claims

1. An installation structure for a drainage system, characterized in that, Includes a housing (1) and a partition (2), the partition (2) being installed inside the housing (1), the partition (2) being angled to the lower base plate of the housing (1), and the partition (2) being used to install the warm air heater (7) of the thermal management device. The partition (2) divides the housing (1) into a first mounting cavity (11) and a second mounting cavity (12). A vent (21) is provided through the partition (2). The warm air heater (7) is installed in the first mounting cavity (11) and is positioned at a distance from the partition (2). A flow channel (22) is formed between the warm air heater (7) and the partition (2). The vent (21) is connected to the flow channel (22). An outlet (23) is provided on the side of the upper end of the flow channel (22) facing the first mounting cavity (11). The second mounting cavity (12) is used to install the evaporator (6) of the thermal management device. The housing (1) is provided with an air inlet (13). The air inlet (13) is arranged facing the air inlet side of the evaporator (6). The angle between the side wall of the partition (2) facing the evaporator (6) and the bottom plate of the housing (1) is β, where β is an acute angle. A drain plate (4) is provided above the heater (7). The drain plate (4) is set at an angle to the partition (2), and the angle between the drain plate (4) and the partition (2) is smaller than the supplementary angle of β.

2. The installation structure for a drainage system according to claim 1, characterized in that, It also includes a connecting plate (3), which is used to fix the heater (7) to the side wall of the partition (2) facing the vent (21) so that the heater (7) and the partition (2) are set at a distance. One end of the connecting plate (3) is connected to the end of the heater (7), and the other end of the connecting plate (3) is fixedly connected to the partition (2). Both ends of the heater (7) are sealed to the partition (2) through the connecting plate (3).

3. The installation structure for a drainage system according to claim 1, characterized in that, It also includes a mounting plate (5), which is located in the second mounting cavity (12) and is set at an angle to the lower bottom plate of the housing (1); The mounting plate (5) is provided with a mounting port (50). The evaporator (6) is installed at the mounting port (50) on the mounting plate (5) and is positioned facing the side of the partition plate (2). The angle between the side wall of the mounting plate (5) away from the evaporator (6) and the bottom plate of the shell (1) is α, where α is an acute angle.

4. The installation structure for a drainage system according to claim 1, characterized in that, It also includes a water receiving cavity (14), which is disposed in the first mounting cavity (11) and located below the warm air heater (7). The evaporator fan (8) of the thermal management device is installed in the first mounting cavity (11) and located in the middle of the water receiving cavity (14).

5. The installation structure for a drainage system according to claim 4, characterized in that, The housing (1) is provided with a mounting platform (15), which is fixed to the bottom plate of the housing (1). The lower end of the partition (2) is fixed to the mounting platform (15). The partition (2) and the mounting platform (15) cooperate to divide the housing (1) into a first mounting cavity (11) and a second mounting cavity (12). The mounting platform (15) and the inner wall of the first mounting cavity (11) enclose the water receiving cavity (14).

6. The installation structure for a drainage system according to claim 5, characterized in that, A support platform (16) is provided in the middle of the water receiving cavity (14). The evaporator fan (8) is installed on the support platform (16). An air outlet (17) is provided on the support platform (16). The air outlet (17) on the support platform (16) is connected to the exhaust port of the evaporator fan (8) through a duct.

7. The installation structure for a drainage system according to claim 5, characterized in that, The mounting platform (15) is provided with a plurality of water passage holes (18) evenly distributed on it. The water passage holes (18) are used to connect the first mounting cavity (11) and the second mounting cavity (12).

8. A thermal management device, characterized in that, The installation structure for a drainage system includes any one of claims 1-7.

9. The thermal management device according to claim 8, characterized in that, It also includes an evaporator (6), a warm air heater (7), and an evaporator fan (8). The evaporator (6) is installed in the second mounting cavity (12) of the mounting structure for the drainage system. The warm air heater (7) and the evaporator fan (8) are both installed in the first mounting cavity (11) of the mounting structure for the drainage system, and the warm air heater (7) is disposed between the evaporator (6) and the evaporator fan (8).

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