Double-layer flow air conditioner module and double-layer flow air conditioner

Abstract

The application discloses a double-layer flow air conditioner module and a double-layer flow air conditioner, and belongs to the technical field of air conditioner devices. The double-layer flow air conditioner module is designed to solve the problem that the double-layer flow mode and the four-temperature-zone function cannot be simultaneously realized in the prior art. The double-layer flow air conditioner module comprises an evaporator, a heater, an adjusting air door arranged between the evaporator and the heater and capable of separating the space between the evaporator and the heater into two independent subspaces, an upper mode air door arranged on the side of the heater away from the evaporator and capable of separating the side of the heater away from the evaporator into two independent subspaces, and a front-blowing foot air outlet. The area ratio of different layers of flow passing through the heater and the layer of flow where the front-blowing foot air outlet is located can be adjusted by changing the spatial posture of the adjusting air door and the upper mode air door. The double-layer flow air conditioner module and the double-layer flow air conditioner provided by the application have the comfort of the four-temperature-zone function and the energy saving of the double-layer flow mode, and the cruising range of a new energy automobile is improved.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more particularly to a dual-flow air conditioning module and a dual-flow air conditioner. Background Technology

[0002] Air conditioning is typically installed in new energy vehicles and other transportation devices to provide passengers with a comfortable riding environment. The main functions of air conditioning include defrosting and delivering cool or warm air to the passenger's face and feet. Existing air conditioning systems in transportation devices generally have two functions: one is a dual-layer flow function, where the upper layer uses fresh air for defrosting and the lower layer uses return air to blow on the feet, achieving energy savings while fulfilling functional requirements; the other is a four-zone function, which divides the interior of the transportation device into different zones and delivers air to each zone individually as needed, improving the user experience.

[0003] Both of these functions have their advantages, but due to limitations in the existing structure, they cannot be integrated. Specifically, the structure for achieving the dual-layer flow function is as follows: an isolation damper is arranged after the heater to isolate the upper and lower layers of air. Both the front and rear foot-blowing air outlets are located in the lower layer. When the isolation damper is closed, return air enters the lower layer, and the front and rear foot-blowing air outlets exit at the same temperature. The structure for achieving the four-temperature zone function is as follows: an isolation damper is arranged after the heater, with the upper layer corresponding to the front exhaust air and the lower layer corresponding to the rear exhaust air. That is, the front foot-blowing air outlet is located in the upper channel, and the rear foot-blowing air outlet is located in the lower channel. When the isolation damper is closed, the temperatures of the front and rear exhaust air outlets can be different, achieving zoned temperature control.

[0004] A comparison reveals that the different placement of the foot-blowing ducts in the two functional structures prevents their integration. Furthermore, in the structure achieving dual-layer flow, the front foot-blowing outlet is located on the lower layer, requiring more heater area thereafter. In the structure achieving four-temperature zones, the front foot-blowing outlet is on the upper layer, and the temperature and airflow of the front foot-blowing area are typically greater than those of the rear foot-blowing area, necessitating a larger heater area in the upper layer. This difference in heater allocation between the upper and lower layers further complicates the integration of the two structures. Summary of the Invention

[0005] The purpose of this invention is to propose a dual-layer flow air conditioning module and a dual-layer flow air conditioner, which solves the problem that dual-layer flow mode and four-temperature zone function cannot be realized at the same time in the existing technical solutions, making it more comfortable to use.

[0006] To achieve this objective, the present invention employs the following technical solution:

[0007] A dual-laminar flow air conditioning module includes: an evaporator; a heater; a regulating damper disposed between the evaporator and the heater, the regulating damper being configured to divide the space between the evaporator and the heater into two independent sub-spaces; an upper mode damper disposed on the side of the heater away from the evaporator, the upper mode damper being configured to divide the side of the heater away from the evaporator into two independent sub-spaces; and a front foot outlet disposed on the side of the upper mode damper away from the heater; the regulating damper and the upper mode damper together divide the airflow flowing through the dual-laminar flow air conditioning module into two laminar flows, and by changing the spatial orientation of the regulating damper and the upper mode damper, the area ratio of different laminar flows passing through the heater and the laminar flow at the front foot outlet can be adjusted.

[0008] In one preferred embodiment, the upper mode damper has at least four spatial orientations. When the upper mode damper is in the first spatial orientation, it divides the side of the heater away from the evaporator into two independent sub-spaces, with the front foot outlet located in one of the sub-spaces. When the upper mode damper is in the second spatial orientation, the space on the side of the heater away from the evaporator is open, and the front foot outlet is closed. When the upper mode damper is in the third spatial orientation, it divides the side of the heater away from the evaporator into two independent sub-spaces, and the front foot outlet is closed. When the upper mode damper is in the fourth spatial orientation, it divides the side of the heater away from the evaporator into two independent sub-spaces, with the front foot outlet located in the other sub-space.

[0009] In one preferred embodiment, a rear double-layer flow partition is provided on the side of the heater away from the evaporator. When the upper mode damper is in the first spatial orientation, the upper mode damper is connected between the rear double-layer flow partition and the outer casing of the double-layer flow air conditioning module.

[0010] In one preferred embodiment, a rear four-temperature zone partition is also provided on the side of the heater away from the evaporator. When the upper mode damper is in the third spatial posture and the fourth spatial posture, the upper mode damper is connected between the rear four-temperature zone partition and the outer shell of the dual-laminar air conditioning module.

[0011] In one preferred embodiment, the dual-layer air conditioning module further includes a rear foot air outlet, a rear surface air outlet, and a lower mode damper. The rear foot air outlet and the rear surface air outlet are both located in one layer of the subspace. The lower mode damper is configured to selectively open and close the rear foot air outlet and / or the rear surface air outlet.

[0012] In one preferred embodiment, the dual-laminar flow air conditioning module further includes a front air outlet and a front air damper for opening and closing the front air outlet; and / or, the dual-laminar flow air conditioning module further includes a defrost air outlet and a defrost damper, the defrost damper being able to open and close the defrost air outlet.

[0013] In one preferred embodiment, the upper mode damper is an integrally formed structure; or, the upper mode damper includes a disc-shaped damper for closing the front air outlet and a bowl-shaped damper for dividing the side of the heater away from the evaporator into two independent sub-spaces.

[0014] In one preferred embodiment, an evaporator partition is provided on the side of the evaporator facing the heater, and a front double-laminar flow partition and a front four-temperature zone partition are provided on the side of the heater facing the evaporator; the regulating damper can be selectively connected between the evaporator partition and the front double-laminar flow partition, or between the evaporator partition and the front four-temperature zone partition.

[0015] In one preferred embodiment, the regulating damper divides the space between the evaporator and the heater into two independent sub-spaces. An upper temperature damper is provided in one sub-space, which can be selectively connected between the heater and the housing of the dual-laminar flow air conditioning module, between the heater and the evaporator partition, or between the evaporator partition and the housing of the dual-laminar flow air conditioning module. A lower temperature damper is provided in the other sub-space, which can be selectively connected between the heater and the housing of the dual-laminar flow air conditioning module, between the heater and the front four-zone partition, or between the front four-zone partition and the housing of the dual-laminar flow air conditioning module.

[0016] On the other hand, the present invention adopts the following technical solution:

[0017] A dual-flow air conditioner includes a distribution box and two dual-flow air conditioning modules as described above. The two dual-flow air conditioning modules are symmetrically arranged in the distribution box, and a partition is provided between the two dual-flow air conditioning modules.

[0018] The dual-laminar flow air conditioning module provided by this invention includes an adjustable damper and an upper mode damper that work together. The adjustable damper and the upper mode damper together separate the airflow passing through the dual-laminar flow air conditioning module into two layers of laminar flow. By changing the spatial orientation of the adjustable damper and the upper mode damper, the area ratio of different laminar flows passing through the heater and the laminar flow where the front air outlet is located can be adjusted. Thus, the dual-laminar flow air conditioning module has both the function of dual-laminar flow and the function of four temperature zones. This solves the problem that the dual-laminar flow function and the four temperature zone function cannot be realized at the same time in the existing technical solutions. It can achieve the comfort of four temperature zones and the energy saving of dual-laminar flow mode, thereby improving the range of new energy vehicles.

[0019] The dual-layer flow air conditioner provided by the present invention includes two dual-layer flow air conditioning modules as described above. The two dual-layer flow air conditioning modules are symmetrically arranged and respectively control the temperature and air volume of the four zones in the passenger cabin of new energy vehicles and other means of transportation: left front, left rear, right front and right rear. This makes it more convenient to use and more comfortable. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the dual-layer flow air conditioning module provided in a specific embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of a dual-layer flow air conditioning module under dual-layer flow mode provided in a specific embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the dual-laminar flow air conditioning module in defrosting mode provided in a specific embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of a dual-laminar air conditioning module in a four-temperature zone blowing mode provided in a specific embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of a dual-laminar flow air conditioning module in a four-temperature zone foot blowing mode provided in a specific embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the dual-layer flow air conditioning module in the intermediate mode provided in a specific embodiment of the present invention.

[0026] In the picture:

[0027] 1. Adjustable damper; 2. Upper mode damper; 31. Front foot air outlet; 32. Rear foot air outlet; 33. Rear face air outlet; 34. Lower mode damper; 35. Front face air outlet; 36. Front face damper; 41. Rear double-layer flow barrier; 42. Front double-layer flow barrier; 51. Rear four-temperature zone barrier; 52. Front four-temperature zone barrier; 61. Upper temperature damper; 62. Lower temperature damper; 71. Defrost air outlet; 72. Defrost damper; 100. Evaporator; 101. Evaporator barrier; 200. Heater; 201. Upper plate; 202. Lower plate. Detailed Implementation

[0028] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0034] This embodiment discloses a dual-laminar flow air conditioning module and a dual-laminar flow air conditioner. Specifically, the dual-laminar flow air conditioner includes a distribution box, in which two dual-laminar flow air conditioning modules are symmetrically arranged. A partition is provided in the distribution box between the two dual-laminar flow air conditioning modules to ensure that the two dual-laminar flow air conditioning modules do not interfere with each other and are controlled independently.

[0035] like Figure 1As shown, the dual-flow air conditioning module includes an evaporator 100, a heater 200, a regulating damper 1, an upper mode damper 2, and a front foot outlet 31. The regulating damper 1 is located between the evaporator 100 and the heater 200, and the upper mode damper 2 is located on the side of the heater 200 furthest from the evaporator 100. The regulating damper 1 is configured to divide the space between the evaporator 100 and the heater 200 into two independent sub-spaces, and the upper mode damper 2 is configured to divide the side of the heater 200 furthest from the evaporator 100 into two independent sub-spaces. The front foot outlet 31 is located on the side of the upper mode damper 2 furthest from the heater 200. The regulating damper 1 and the upper mode damper 2 together divide the airflow passing through the dual-layer air conditioning module into two layers of laminar flow. By changing the spatial orientation of the regulating damper 1 and the upper mode damper 2, the area ratio of different laminar flows passing through the heater 200 is adjusted, and the laminar flow at the front foot outlet 31 is adjusted, thereby integrating the existing four-temperature zone function and the dual-layer flow function together.

[0036] The upper mode damper 2 has at least four spatial orientations, which change the operating mode of the dual-layer air conditioning module. Specifically, when the upper mode damper 2 is in the first spatial orientation, it divides the side of the heater 200 away from the evaporator 100 into two independent sub-spaces (not shown), with the front foot outlet 31 located in one sub-space. When the upper mode damper 2 is in the second spatial orientation, the space on the side of the heater 200 away from the evaporator 100 is open, and the front foot outlet 31 is closed. When the upper mode damper 2 is in the third spatial orientation, it divides the side of the heater 200 away from the evaporator 100 into two independent sub-spaces, and the front foot outlet 31 is closed. When the upper mode damper 2 is in the fourth spatial orientation, it divides the side of the heater 200 away from the evaporator 100 into two independent sub-spaces, with the front foot outlet 31 located in the other sub-space.

[0037] In this embodiment, the two subspaces are the upper subspace and the lower subspace. Of course, the two subspaces can also be set to the left and right or front and back respectively. The usage method is the same, and the air outlet effect is consistent. It can be set according to the shape and size of the distribution box.

[0038] The specific structure for achieving at least four spatial postures for the upper mode damper 2 is not limited. In this embodiment, a rear double-layer flow partition 41 is provided on the side of the heater 200 away from the evaporator 100. When the upper mode damper 2 is connected between the rear double-layer flow partition 41 and the outer casing (not shown) of the double-layer flow air conditioning module, the upper mode damper 2 can achieve the first spatial posture.

[0039] Based on the above structure, a rear four-zone partition 51 is also provided on the side of the heater 200 away from the evaporator 100. When the upper mode damper 2 is connected between the rear four-zone partition 51 and the outer shell of the dual-layer air conditioning module, the third and fourth spatial postures of the upper mode damper 2 can be realized by changing the connection position between the upper mode damper 2 and the outer shell of the dual-layer air conditioning module.

[0040] The specific structure of the upper mode damper 2 is not limited and can be a one-piece molded structure, which is convenient to assemble and disassemble and simple to control. In some embodiments, the upper mode damper 2 is a barrel-shaped damper, and its rotation axis is parallel to the normal direction of the longitudinal section of the bi-laminar air conditioning module. Specifically, when the upper mode damper 2 is in the second to fourth spatial postures, the rotation angle of the barrel-shaped damper relative to the first spatial posture is 120°, 160° and 210° clockwise, respectively.

[0041] In other embodiments, the upper mode damper 2 can also be disassembled into two independent structures, one of which is a disc-shaped damper for closing the front foot outlet 31, and the other is a bowl-shaped damper for dividing the side of the heater 200 away from the evaporator 100 into two independent sub-spaces.

[0042] The disc-shaped damper is plate-shaped, making it easier to control. It can rotate around the hinge axis or move along the track. The bottom of the bowl-shaped damper is arc-shaped, and it can block different air ducts when rotated to different positions. In this embodiment, when used as a partition damper, the bowl-shaped damper can be connected between the rear double-layer flow partition 41 and the outer shell of the double-layer flow air conditioning module, that is, the upper mode damper 2 is in the first spatial posture; when used as a compensation damper, the bowl-shaped damper is connected between the rear four-temperature zone partition 51 and the outer shell of the double-layer flow air conditioning module, that is, the upper mode damper 2 is in the third or fourth spatial posture.

[0043] In addition to the front foot air outlet 31, the dual-layer air conditioning module also includes a rear foot air outlet 32, a rear surface air outlet 33, a front surface air outlet 35, and a defrost air outlet 71. Each of the above air outlets is equipped with a corresponding damper, and the opening and closing of the damper controls whether air is coming out of the outlet. The air volume can also be controlled by adjusting the opening and closing angle of the damper.

[0044] In this embodiment, when the upper mode damper 2 is in the second spatial posture, the upper mode damper 2 is located in front of the front foot air outlet 31, thereby closing the front foot air outlet 31. That is, at this time, the upper mode damper 2 is equivalent to the front foot air outlet damper.

[0045] Both the rear foot-blowing air outlet 32 ​​and the rear face-blowing air outlet 33 are located in the lower subspace. A lower mode damper 34 is provided in front of the rear foot-blowing air outlet 32 ​​and the rear face-blowing air outlet 33. When the lower mode damper 34 is in the first position, it can simultaneously close the rear foot-blowing air outlet 32 ​​and the rear face-blowing air outlet 33. When the lower mode damper 34 is in the second position, it can close the rear foot-blowing air outlet 32 ​​and open the rear face-blowing air outlet 33. When the lower mode damper 34 is in the third position, it can close the rear face-blowing air outlet 33 and open the rear foot-blowing air outlet 32.

[0046] A front-blowing damper 36 is provided in front of the front-blowing air outlet 35, and a defrosting damper 72 is provided in front of the defrosting air outlet 71. Both the front-blowing damper 36 and the defrosting damper 72 are rotatable doors, which are convenient to use and have low cost.

[0047] Based on the above structure, an evaporator partition 101 is provided on the side of the evaporator 100 facing the heater 200, and a front double laminar flow partition 42 and a front four temperature zone partition 52 are provided on the side of the heater 200 facing the evaporator 100.

[0048] The evaporator partition 101, the front double-layer flow partition 42, and the front four-zone partition 52 form a triangle. The regulating damper 1 has a swivel structure. When the regulating damper 1 is connected between the evaporator partition 101 and the front double-layer flow partition 42, the evaporator partition 101, the regulating damper 1, and the front double-layer flow partition 42 form a barrier, with the upper and lower sides of the barrier being two independent subspaces. When the regulating damper 1 is connected between the evaporator partition 101 and the front four-zone partition 52, the evaporator partition 101, the regulating damper 1, and the front four-zone partition 52 form a barrier, with the upper and lower sides of the barrier being two independent subspaces.

[0049] By adjusting the swing position of the damper 1, the vertical position of the barrier can be changed, thereby altering the size of the upper and lower sub-spaces. The larger sub-space has a greater contact area with the heater 200, allowing for flexible adjustment of the upper and lower layer ratio of the heater 200.

[0050] Based on the above structure, an upper temperature damper 61 is provided above the front double-layer flow partition 42, and a lower temperature damper 62 is provided below the front four-temperature zone partition 52. No matter how the regulating damper 1 is rotated, the upper temperature damper 61 and the lower temperature damper 62 are always located in different subspaces.

[0051] The upper temperature damper 61 is a movable structure. When the upper temperature damper 61 is connected between the heater 200 and the outer shell of the dual-layer air conditioning module, it blocks the airflow passage from the evaporator 100 directly to the defrost outlet 71 and the front air outlet 35, while opening the airflow passage from the evaporator 100 to the heater 200 in the upper subspace. When the upper temperature damper 61 is connected between the heater 200 and the evaporator partition 101, the airflow through the evaporator 100 cannot reach the heater 200, thus opening the airflow passage from the evaporator 100 directly to the defrost outlet 71 and the front air outlet 35. When the upper temperature damper 61 is located between the evaporator partition 101 and the outer shell of the dual-layer air conditioning module, the airflow passage from the evaporator 100 to the heater 200, as well as the airflow passage from the evaporator 100 directly to the defrost outlet 71 and the front air outlet 35 in the upper subspace, are partially open, allowing airflow to pass through, but the air volume is small.

[0052] The lower temperature damper 62 is also a movable structure. When the lower temperature damper 62 is connected between the heater 200 and the outer shell of the dual-layer air conditioning module, it blocks the airflow passage from the evaporator 100 directly to the rear foot outlet 32 ​​and the rear surface outlet 33, while opening the airflow passage from the evaporator 100 to the heater 200 in the lower subspace. When the lower temperature damper 62 is connected between the heater 200 and the front four-zone partition 52, it opens the airflow passage from the evaporator 100 directly to the rear foot outlet 32. The airflow channels of the air vent 32 and the rear air outlet 33 block the airflow channel from the evaporator 100 to the heater 200 in the lower subspace. When the lower temperature damper 62 is located between the front four temperature zone partition 52 and the outer shell of the dual-layer air conditioning module, the airflow channel from the evaporator 100 directly to the rear air outlet 32 ​​and the rear air outlet 33, as well as the airflow channel from the evaporator 100 to the heater 200 in the lower subspace, are partially open, allowing airflow to pass through but with a small volume.

[0053] To improve installation stability, an upper plate 201 is provided at the upper end of the heater 200, and a slide rail (not shown) is provided on the upper plate 201. The upper temperature damper 61 is connected to the slide rail and can move along the slide rail. A lower plate 202 is provided at the lower end of the heater 200, and a slide rail (not shown) is provided on the lower plate 202. The lower temperature damper 62 is connected to the slide rail and can move along the slide rail.

[0054] Figure 2The diagram shows the positions of the dampers and the airflow paths in the dual-flow mode. When damper 1 is rotated to the front dual-flow partition 42, the upper temperature damper 61 opens the airflow path from the evaporator 100 to the defrost outlet 71, and the defrost damper 72 is open. The lower temperature damper 62 connects between the heater 200 and the outer casing of the dual-flow air conditioning module. The upper mode damper 2 connects between the rear dual-flow partition 41 and the outer casing of the dual-flow air conditioning module. The lower mode damper 34 blocks the rear airflow outlet 33. In this mode, the upper mode damper 2 is in the first spatial orientation.

[0055] At this time, the evaporator partition (not shown), regulating damper 1, front double-layer flow partition 42, rear double-layer flow partition 41 and upper mode damper 2 form upper and lower layer partitions. The upper layer airflow passes through the evaporator 100 and is blown out from the defrost outlet 71. The lower layer airflow passes through the evaporator 100 and the heater 200 in sequence and is blown out from the front foot outlet 31 and the rear foot outlet 32 ​​respectively.

[0056] Adjusting the damper 1 to the front double-layer flow partition 42 increases the area of ​​the lower sub-space, increasing the airflow through the heater 200, which can meet the air volume and temperature requirements of the front foot outlet 31 and the rear foot outlet 32.

[0057] Figure 3 The diagram shows the positions of the various dampers and the airflow path in defrost mode. When the damper (not shown) is rotated to the front double-layer flow partition (not shown), the upper temperature damper 61 blocks the airflow path from the evaporator 100 to the defrost outlet 71, and the defrost damper 72 is open. The lower temperature damper (not shown) is connected between the heater 200 and the outer casing of the double-layer flow air conditioning module. The lower mode damper 34 simultaneously blocks the rear foot outlet 32 ​​and the rear front outlet 33, while the upper mode damper 2 blocks the front foot outlet 31. In this mode, the upper mode damper 2 is in a second spatial orientation.

[0058] The upper airflow is heated after passing through the evaporator 100 and heater 200 in sequence, and the hot air is blown out from the defrost outlet 71. The lower airflow is heated after passing through the evaporator 100 and heater 200 in sequence, and the hot air is merged into the upper airflow through a compensation channel (not shown) and finally blown out from the defrost outlet 71.

[0059] Figure 4The diagram shows the positions of the air dampers and the airflow paths in the four-zone airflow mode. Adjusting damper 1 to rotate to the front four-zone partition 52, the upper temperature damper 61 connects between the evaporator partition 101 and the heater 200, the defrost damper 72 is closed, the front airflow damper 36 opens the front airflow outlet 35, the upper mode damper 2 closes the front foot airflow outlet 31, and simultaneously closes the airflow channel between the rear four-zone partition 51 and the outer casing of the dual-layer air conditioning module. The lower mode damper 34 closes the rear foot airflow outlet 32, and the lower temperature damper 62 connects between the front four-zone partition 52 and the outer casing of the dual-layer air conditioning module. In this mode, the upper mode damper 2 is in a third spatial orientation.

[0060] All airflow bypasses the heater 200, so all air blown out is cold air. Specifically, the upper airflow passes through the evaporator 100 and is blown directly out from the front air outlet 35, while the lower airflow passes through the evaporator 100 and is blown directly out from the rear air outlet 33.

[0061] Figure 5 The diagram shows the positions of the dampers and airflow paths in the four-zone foot-blowing mode. The regulating damper 1 connects the front four-zone partition 52 and the evaporator partition 101. The upper temperature damper 61 connects the heater 200 and the outer casing of the dual-layer air conditioning module, respectively closing the defrost damper 72 and the front airflow damper 36. The upper mode damper 2 only closes the airflow channel between the rear four-zone partition 51 and the outer casing of the dual-layer air conditioning module. The lower mode damper 34 closes the rear airflow outlet 33. The lower temperature damper 62 connects the heater 200 and the outer casing of the dual-layer air conditioning module. In this mode, the upper mode damper 2 is in the fourth spatial orientation.

[0062] The upper airflow is heated after passing through the evaporator 100 and heater 200 in sequence, and the hot air is blown out from the front foot outlet 31. The lower airflow is heated after passing through the evaporator 100 and heater 200 in sequence, and the hot air is blown out from the rear foot outlet 32.

[0063] Evaporator partition 101, regulating damper 1, front four-temperature zone partition 52, rear four-temperature zone partition 51 and upper mode damper 2 form a barrier, separating the upper space and the lower space. At this time, the area of ​​the upper space is larger than that of the lower space, and more hot air passes through heater 200 in the upper space, which increases the air volume and temperature of the front foot outlet 31, meeting the actual usage requirements.

[0064] Figure 6The diagram shows the position of each damper and the airflow path in the intermediate mode (or hybrid mode). The regulating damper 1 is connected between the front four-zone partition 52 and the evaporator partition 101. The upper temperature damper 61 is located between the evaporator partition 101 and the outer casing of the dual-layer air conditioning module. The lower temperature damper 62 is located between the front four-zone partition 52 and the outer casing of the dual-layer air conditioning module. The defrost outlet 71 and the front air outlet 35 are open. The upper mode damper 2 closes the airflow channel between the rear four-zone partition 51 and the outer casing of the dual-layer air conditioning module. At the same time, the upper mode damper 2 partially opens the front foot outlet 31 (the upper mode damper 2 can move along the direction shown by the curve with double arrows to adjust the opening of the front foot outlet 31). The lower mode damper 34 partially blocks the rear foot outlet 32 ​​and the rear air outlet 33 (the lower mode damper 34 can move along the direction shown by the curve with double arrows to adjust the opening of the rear foot outlet 32 ​​and the rear air outlet 33). In this mode, the upper mode damper 2 is in the fourth spatial posture, but the front foot air outlet 31 is not fully open.

[0065] After the upper airflow passes through the evaporator 100, part of it passes through the airflow channel between the upper temperature damper 61 and the outer shell of the dual-layer air conditioning module, and the other part is heated by the heater 200 to obtain hot air. The mixed air of the upper cold air and hot air is blown out from the defrost outlet 71, the front air outlet 35 and / or the front foot outlet 31 as needed.

[0066] After the upper airflow passes through the evaporator 100, part of it passes through the airflow channel between the lower temperature damper 62 and the outer shell of the dual-layer air conditioning module, and the other part is heated by the heater 200 to obtain hot air. The mixed air of the lower layer, which is a mixture of cold air and hot air, is blown out from the rear foot outlet 32 ​​and / or the rear surface outlet 33 as needed.

[0067] The above explanations use the left side of the distribution box as an example, namely the upper left and lower left sections, corresponding to the front left and rear left areas of the vehicle's passenger compartment, respectively. The structure and working principle of the right side of the distribution box are the same as the left side, and the right-side temperature damper can be controlled independently. The left and right sides of the distribution box work together to achieve four sections: upper left, lower left, upper right, and lower right, corresponding to the front left, rear left, front right, and rear right areas of the vehicle's passenger compartment, respectively.

[0068] As explained above, the upper mode damper 2 replaces the existing front foot-blowing damper, defrost compensation damper, double-layer flow isolation damper, and four-temperature zone isolation damper. Specifically, in double-layer flow mode, the upper mode damper 2 functions as a double-layer flow isolation damper, separating the upper and lower air layers. The upper fresh air can be used for defrosting, and the lower return air can be used for foot blowing. In defrost mode, the upper mode damper 2 functions as both a defrost compensation damper and a front foot-blowing damper. That is, it closes the front foot-blowing outlet 31, opens the upper and lower passage, and allows the lower airflow to compensate for the air volume of the defrost outlet 71.

[0069] In the four-temperature zone face blowing mode, the upper mode damper 2 simultaneously acts as a four-temperature zone isolation damper and a front foot blowing damper, closing the upper and lower passages to separate the four temperature zones, and simultaneously closing the front foot blowing outlet 31. In the four-temperature zone foot blowing mode, the upper mode damper 2 also acts as a four-temperature zone isolation damper, similarly closing the upper and lower passages to separate the four temperature zones. In intermediate modes such as four-temperature zone defogging, face blowing, and foot blowing, the upper mode damper 2 simultaneously acts as a four-temperature zone isolation damper and a front foot blowing damper, closing the upper and lower passages to separate the four temperature zones while adjusting the airflow of the front foot blowing outlet 31.

[0070] In summary, by simply changing the position (or spatial orientation) of the upper mode damper 2 on the downwind side of the heater 200, multi-functionality and mode switching can be achieved, saving costs and making it more convenient to use. By adjusting the combination of damper 1 and upper mode damper 2, the problem of the inability to simultaneously achieve dual-layer flow mode and four-temperature zone function in existing technologies is solved. This allows for both the comfort of four-temperature zones and the energy saving of dual-layer flow mode, improving the range of new energy vehicles.

[0071] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A dual-laminar flow air conditioning module, characterized in that, include: Evaporator (100); Heater (200); An regulating damper (1) is disposed between the evaporator (100) and the heater (200), and the regulating damper (1) is configured to divide the space between the evaporator (100) and the heater (200) into two independent sub-spaces; An upper mode damper (2) is disposed on the side of the heater (200) away from the evaporator (100), and the upper mode damper (2) is configured to divide the side of the heater (200) away from the evaporator (100) into two independent sub-spaces; and, The front foot air outlet (31) is located on the side of the upper mode damper (2) away from the heater (200); The regulating damper (1) and the upper mode damper (2) together divide the airflow flowing through the dual-layer air conditioning module into dual-layer laminar flow. By changing the spatial orientation of the regulating damper (1) and the upper mode damper (2), the area ratio of different laminar flows passing through the heater (200) and the laminar flow where the front foot outlet (31) is located can be adjusted. An evaporator partition (101) is provided on the side of the evaporator (100) facing the heater (200), and a front double laminar flow partition (42) and a front four temperature zone partition (52) are provided on the side of the heater (200) facing the evaporator (100). The regulating damper (1) can be selectively connected between the evaporator partition (101) and the front double laminar flow partition (42), or between the evaporator partition (101) and the front four temperature zone partition (52); The regulating damper (1) divides the space between the evaporator (100) and the heater (200) into two independent sub-spaces. An upper temperature damper (61) is provided in one of the sub-spaces. The upper temperature damper (61) can be selectively connected between the heater (200) and the outer shell of the dual-layer air conditioning module, between the heater (200) and the evaporator partition (101), or between the evaporator partition (101) and the outer shell of the dual-layer air conditioning module. A lower temperature damper (62) is provided in the subspace on the other side. The lower temperature damper (62) can be selectively connected between the heater (200) and the housing of the dual-laminar flow air conditioning module, between the heater (200) and the front four temperature zone partition (52), or between the front four temperature zone partition (52) and the housing of the dual-laminar flow air conditioning module.

2. The dual-laminar flow air conditioning module according to claim 1, characterized in that, The upper mode damper (2) has at least four spatial postures. When the upper mode damper (2) is in the first spatial posture, the upper mode damper (2) divides the side of the heater (200) away from the evaporator (100) into two independent sub-spaces. The front foot air outlet (31) is in one of the sub-spaces. When the upper mode damper (2) is in the second spatial posture, the space on the side of the heater (200) away from the evaporator (100) is open, and the front foot air outlet (31) is closed; When the upper mode damper (2) is in the third spatial posture, the upper mode damper (2) divides the side of the heater (200) away from the evaporator (100) into two independent sub-spaces, and the front foot air outlet (31) is closed. When the upper mode damper (2) is in the fourth spatial posture, the upper mode damper (2) divides the side of the heater (200) away from the evaporator (100) into two independent sub-spaces, and the front foot air outlet (31) is in the other sub-space.

3. The dual-laminar flow air conditioning module according to claim 2, characterized in that, A rear double-layer flow partition (41) is provided on the side of the heater (200) away from the evaporator (100). When the upper mode damper (2) is in the first spatial posture, the upper mode damper (2) is connected between the rear double-layer flow partition (41) and the outer shell of the double-layer flow air conditioning module.

4. The dual-laminar flow air conditioning module according to claim 2, characterized in that, A rear four-zone partition (51) is also provided on the side of the heater (200) away from the evaporator (100). When the upper mode damper (2) is located in the third spatial posture and the fourth spatial posture, the upper mode damper (2) is connected between the rear four-zone partition (51) and the outer shell of the dual-layer air conditioning module.

5. The dual-laminar flow air conditioning module according to claim 2, characterized in that, The dual-layer air conditioning module also includes a rear foot air outlet (32), a rear surface air outlet (33), and a lower mode damper (34). The rear foot air outlet (32) and the rear surface air outlet (33) are both located in the first layer of the subspace. The lower mode damper (34) is configured to selectively open and close the rear foot air outlet (32) and / or the rear surface air outlet (33).

6. The dual-laminar flow air conditioning module according to claim 2, characterized in that, The dual-layer air conditioning module further includes a front air outlet (35) and a front air damper (36) for opening and closing the front air outlet (35); and / or, The dual-layer air conditioning module also includes a defrost outlet (71) and a defrost damper (72), the defrost damper (72) being able to open and close the defrost outlet (71).

7. The dual-laminar flow air conditioning module according to claim 2, characterized in that, The upper mode damper (2) is an integrally formed structure; or, the upper mode damper (2) includes a disc damper for closing the front foot outlet (31) and a bowl damper for dividing the side of the heater (200) away from the evaporator (100) into two independent sub-spaces.

8. A dual-flow air conditioner, including a distribution box, characterized in that, It also includes two dual-flow air conditioning modules as described in any one of claims 1 to 7, the two dual-flow air conditioning modules being symmetrically arranged in the distribution box, and a partition being provided between the two dual-flow air conditioning modules.

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