Double-layer flow air conditioning box

Abstract

The utility model provides a double-layer-flow air conditioning box, and relates to the technical field of automobile air conditioners, the double-layer-flow air conditioning box comprises a box body, a first air inlet and a second air inlet are formed in the box body, the first air inlet communicates with a first air outlet through a first air duct, and the second air inlet communicates with a second air outlet through a second air duct; the first air inlet is rotationally connected with a first air door driven by a first motor, and a first opening and closing angle is formed between the first air door and the first air inlet; the second air inlet is rotationally connected with a second air door driven by a second motor, a second opening and closing angle is formed between the second air door and the second air inlet, and the controller can make the ratio of the first opening and closing angle to the second opening and closing angle fall into a preset range; by arranging the first motor and the second motor, the first opening and closing angle and the second opening and closing angle can be adjusted according to any proportion, the controller is used for controlling the first motor and the second motor respectively, the ratio of the first motor and the second motor can fall into the preset range, and therefore water mist can be prevented from being generated on the car window, and meanwhile energy consumption is effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of automobile air conditioning, and in particular to a double-flow air conditioning box. Background Art

[0002] In winter, car air conditioners use an internal circulation mode for heating, which can effectively reduce energy consumption. However, due to the high humidity in the air inside the vehicle, water mist is easily generated on the vehicle glass, obstructing vision. To solve this problem, a double-layer flow air conditioning box design was introduced. The air outlet of the passenger seat is connected to the air inlet located inside the vehicle, which makes the temperature inside the vehicle high and the heating effect good. The air outlet at the glass is connected to the air inlet outside the vehicle, which makes the air outside dry and less prone to fogging. However, because the dampers at the two air inlets of traditional double-layer flow air conditioning boxes are controlled by the same motor, the two dampers will rotate synchronously during adjustment, resulting in a fixed ratio of indoor and outdoor air intake in the air conditioning box, which is less flexible. Utility Model Content

[0003] In the first aspect, the purpose of this application is to address the above problems and provide a double-layer air-conditioning box, comprising:

[0004] A box body, wherein a first air inlet and a second air inlet are formed on the box body, the first air inlet is connected to the first air outlet via a first air duct, and the second air inlet is connected to the second air outlet via a second air duct;

[0005] a first damper, the first damper being rotatably connected to the first air inlet and driven by a first motor to control a first opening and closing angle between the first damper and the first air inlet;

[0006] a second damper, the second damper being rotatably connected to the second air inlet and driven by a second motor to control a second opening and closing angle between the second damper and the second air inlet;

[0007] A controller is configured to control the first damper and the second damper to rotate independently so that a ratio between the first opening and closing angle and the second opening and closing angle falls within a preset range.

[0008] According to the technical solution provided in certain embodiments of the present application, the first damper includes a first curved plate and two first connecting plates that are integrally connected, and the two first connecting plates are connected at both ends of the first curved plate along its rotation axis. The first motor is arranged on the outer wall of the first air inlet on the side away from the second air inlet. The free end of the drive shaft of the first motor passes through the side wall of the first air inlet and is fixedly connected to one of the first connecting plates, and the other first connecting plate is rotatably connected to the side wall of the first air inlet on the end away from the first motor.

[0009] According to the technical solution provided in certain embodiments of the present application, the second damper includes a second curved plate and two second connecting plates connected as a whole, the two second connecting plates are connected at both ends of the second curved plate along its rotation axis, the second motor is arranged on the outer wall of the second air inlet on the side away from the first air inlet, the free end of the drive shaft of the second motor passes through the side wall of the second air inlet and is fixedly connected to one of the second connecting plates, and the other second connecting plate is rotatably connected to the side wall of the second air inlet away from the second motor.

[0010] According to the technical solutions provided in certain embodiments of the present application, a first sealing strip is provided on the first damper, and a second sealing strip is provided on the second damper.

[0011] According to the technical solution provided in certain embodiments of the present application, it also includes a detection component for detecting the humidity of the air in the vehicle to generate a first signal. The detection component is electrically connected to the controller, and the controller controls the start and stop of the first motor and the second motor respectively according to the first signal.

[0012] Compared with the prior art, the present application has the following beneficial effects: the present application provides a double-layer air-conditioning box, comprising a box body, a first air inlet and a second air inlet are provided on the box body, the first air inlet is connected to the first air outlet via a first air duct, and the second air inlet is connected to the second air outlet via a second air duct; a first damper is rotatably connected to the first air inlet, and the first damper is driven by a first motor to control a first opening and closing angle between the first damper and the first air inlet; a second damper is rotatably connected to the second air inlet, and the second damper is driven by a second motor to control a second opening and closing angle between the second damper and the second air inlet, and further comprising a controller, The controller is used to control the independent rotation of the first damper and the second damper so that the ratio between the first opening and closing angle and the second opening and closing angle falls within a preset range; by setting the first motor to drive the first damper and the second motor to drive the second damper, the first opening and closing angle and the second opening and closing angle can be adjusted according to any proportion. Compared with the traditional method of controlling the two circulating dampers to open at a fixed proportion by the same power source, the controller is used to control the first motor and the second motor according to the air humidity in the vehicle, so that the ratio between the first opening and closing angle and the second opening and closing angle can fall within a preset range, thereby avoiding the generation of water mist on the windows while effectively reducing energy consumption.

[0013] It should be understood that the description of technical features, technical solutions, beneficial effects or similar language in this application does not imply that all features and advantages can be realized in any single embodiment. On the contrary, it is understood that the description of a feature or beneficial effect means that a specific technical feature, technical solution or beneficial effect is included in at least one embodiment. Therefore, the description of a technical feature, technical solution or beneficial effect in this specification does not necessarily refer to the same embodiment. Furthermore, the technical features, technical solutions and beneficial effects described in the present embodiment can also be combined in any appropriate manner. Those skilled in the art will understand that the embodiment can be implemented without one or more specific technical features, technical solutions or beneficial effects of a specific embodiment. In other embodiments, additional technical features and beneficial effects can also be identified in specific embodiments that do not embody all embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 An isometric view of a double laminar flow air conditioning box provided in an embodiment of the present application;

[0016] Figure 2 A front view of a double-layer air-conditioning box provided in an embodiment of the present application;

[0017] Figure 3 This is a schematic structural diagram of the first damper and the second damper of a double laminar flow air-conditioning box provided in an embodiment of the present application.

[0018] The text annotations in the figure represent:

[0019] 1. Box body; 2. First damper; 3. Second damper; 4. First motor; 5. Second motor; 11. First air inlet; 12. Second air inlet; 13. First air outlet; 14. Second air outlet; 21. First curved plate; 22. First sealing strip; 31. Second curved plate; 32. Second sealing strip. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present application. Specifically, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0022] As mentioned in the background technology, in order to solve the problems in the prior art, this embodiment provides a double-layer air-conditioning box, including:

[0023] The box body 1 is provided with a first air inlet 11 and a second air inlet 12. The first air inlet 11 is connected to the first air outlet 13 through a first air duct, and the second air inlet 12 is connected to the second air outlet 14 through a second air duct.

[0024] A first damper 2 is rotatably connected to the first air inlet 11 and driven by a first motor 4 to control a first opening and closing angle between the first damper 2 and the first air inlet 11;

[0025] The second damper 3 is rotatably connected to the second air inlet 12 and driven by the second motor 5 to control a second opening and closing angle between the second damper 3 and the second air inlet 12;

[0026] The controller is configured to control the first damper 2 and the second damper 3 to rotate independently so that the ratio between the first opening and closing angle and the second opening and closing angle falls within a preset range.

[0027] Please refer to Figure 2The box body 1 is the outer shell of the air-conditioning box. The first air inlet 11 and the second air inlet 12 are opened on the box body 1 at the same height. The first air inlet 11 is connected to the outside of the vehicle, and the second air inlet 12 is connected to the inside of the vehicle. The first air duct is an external circulation air duct, and the outside air can enter the vehicle through the first channel. The second channel is an internal circulation channel, and the air inside the vehicle can circulate through the second channel; blowers are respectively provided in the first air duct and the second air duct, and the blowers can suck the outside air / the air inside the vehicle into the first air duct / the second air duct through the first air inlet 11 / the second air inlet 12, and blow the glass / the passenger position through the first air outlet 13 / the second air outlet 14; the box body 1 is also provided with an evaporator and an internal condenser. Both are arranged on the first air duct and the second air duct. In the cooling mode, the air in the first air duct and the second air duct passes through the evaporator respectively, and the refrigerant in the evaporator absorbs the heat of the air in the first air duct and the second air duct, cooling it down to cool the interior of the vehicle, and then the refrigerant is transported to the radiator through the compressor to dissipate the heat outside the vehicle; in the heating mode, the air in the first air duct and the second air duct passes through the internal condenser respectively, and at the same time, the high-temperature and high-pressure refrigerant output from the compressor releases heat through the internal condenser, so that the air in the first air duct and the second air duct can heat the interior of the vehicle, and then the refrigerant passes through the radiator or the cooler of the battery / electric drive system, and the heat is absorbed by the air outside the vehicle or the battery / electric drive system. The first damper 2 is rotatably connected to the first air inlet 11, and the first motor 4 can drive the first damper 2 to rotate to control the size of the first opening and closing angle; the second damper 3 is rotatably connected to the second air inlet 12, and the second motor 5 can drive the second damper 3 to control the size of the second opening and closing angle; the preset ratio is that the angle ratio of the first opening and closing angle to the second opening and closing angle is 3:7. It is verified by this embodiment that under the low-temperature heating condition of -7°C, medium and large new energy vehicles can effectively reduce air-conditioning energy consumption by 336W and increase the cruising range by 20km by adjusting the first opening and closing angle and the second opening and closing angle to make the angle ratio of the two be 3:7.

[0028] By setting the first motor 4 to drive the first damper 2 and the second motor 5 to drive the second damper 3, the first opening and closing angle and the second opening and closing angle can be adjusted in any proportion. Compared with the traditional method of controlling the two circulating dampers to open in a fixed proportion by the same power source, the controller is used to control the first motor 4 and the second motor 5 according to the air humidity in the vehicle, so that the ratio between the first opening and closing angle and the second opening and closing angle can fall within a preset range, thereby avoiding the generation of water mist on the windows while effectively reducing energy consumption.

[0029] In a preferred embodiment, the first damper 2 includes a first curved plate 21 and two first connecting plates that are integrally connected. The two first connecting plates are connected to both ends of the first curved plate 21 along its rotation axis. The first motor 4 is arranged on the outer wall of the first air inlet 11 on the side away from the second air inlet 12. The free end of the drive shaft of the first motor 4 passes through the side wall of the first air inlet 11 and is fixedly connected to one of the first connecting plates. The other first connecting plate is rotatably connected to the side wall of the first air inlet 11 away from the first motor 4.

[0030] In a preferred embodiment, the second damper 3 includes an integrally connected second curved plate 31 and two second connecting plates, the two second connecting plates are connected to both ends of the second curved plate 31 along its rotation axis, the second motor 5 is arranged on the outer wall of the second air inlet 12 on the side away from the first air inlet 11, and the free end of the drive shaft of the second motor 5 passes through the side wall of the second air inlet 12 and is fixedly connected to one of the second connecting plates, and the other second connecting plate is rotatably connected to the side wall of the second air inlet 12 away from the second motor 5.

[0031] like Figure 1 As shown, the first connecting plate is approximately a fan-shaped plane structure, and the two first connecting plates are fixed at the two arc-shaped edges of the first arc-shaped plate 21 and extend radially along the first arc-shaped plate 21; in this embodiment, the first arc-shaped plate 21 has a wavy structure, and a plurality of partitions extending along its circumferential direction are distributed on its surface to strengthen the structural strength of the first arc-shaped plate 21; the first motor 4 is arranged on the outer wall of the first air inlet 11 away from the second air inlet 12, and the drive shaft of the first motor 4 passes through the side wall of the first air inlet 11 and is rotatably connected to the side wall of the first air inlet 11. The free end of its drive shaft is fixedly connected to one of the first connecting plates, and the other first connecting plate is rotatably connected to the side wall of the first air inlet 11 away from the first motor 4; the second damper 3 has the same structure as the first damper 2, and will not be repeated here. The second motor 5 is arranged on the outer wall of the second air inlet 12 away from the first air inlet 11, and the free end of its drive shaft also passes through the side wall of the second air inlet 12 and is fixedly connected to one of the second connecting plates, and the other second connecting plate is rotatably connected to the side wall of the second air inlet 12 away from the second motor 5.

[0032] In a preferred embodiment, a first sealing strip 22 is provided on the first damper 2 , and a second sealing strip 32 is provided on the second damper 3 .

[0033] like Figure 3 As shown, the first sealing strip 22 / the second sealing strip 32 is arranged on the two sides of the first damper 2 / the second damper 3, so that the first damper 2 / the second damper 3 can be sealed and connected with the inner wall of the first air inlet 11 / the second air inlet 12 when closing the first air inlet 11 / the second air inlet 12.

[0034] In a preferred embodiment, a detection component is further included for detecting the humidity of the air in the vehicle to generate a first signal. The detection component is electrically connected to a controller, and the controller controls the start and stop of the first motor 4 and the second motor 5 respectively according to the first signal.

[0035] like Figure 2 As shown, the detection component adopts the temperature and humidity sensor in the prior art, which detects the temperature and humidity of the air in the vehicle through the temperature and humidity sensor, and transmits the detection data to the controller. The controller controls the first motor 4 and the second motor 5 according to the temperature and humidity of the air in the vehicle, respectively, drives the first damper 2 and the second damper 3 to rotate, so that the first air inlet 11 and the second air inlet 12 have appropriate opening and closing angles, so as to achieve the purpose of maintaining the temperature of the air in the vehicle at a moderate level and reducing energy consumption.

[0036] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A double laminar flow air conditioning box, characterized in that: include: A box body (1), wherein the box body (1) is provided with a first air inlet (11) and a second air inlet (12), wherein the first air inlet (11) is connected to a first air outlet (13) via a first air duct, and the second air inlet (12) is connected to a second air outlet (14) via a second air duct; a first damper (2), the first damper (2) being rotatably connected to the first air inlet (11) and driven by a first motor (4) to control a first opening and closing angle between the first damper (2) and the first air inlet (11); a second damper (3), the second damper (3) being rotatably connected to the second air inlet (12) and driven by a second motor (5) to control a second opening and closing angle between the second damper (3) and the second air inlet (12); A controller is configured to control the first damper (2) and the second damper (3) to rotate independently so that the ratio between the first opening and closing angle and the second opening and closing angle falls within a preset range.

2. A double laminar flow air conditioning box according to claim 1, characterized in that: The first damper (2) comprises a first arc-shaped plate (21) and two first connecting plates connected in an integral manner, wherein the two first connecting plates are connected to both ends of the first arc-shaped plate (21) along the direction of its rotation axis, and the first motor (4) is arranged on the outer wall of the first air inlet (11) on the side away from the second air inlet (12), and the free end of the driving shaft of the first motor (4) passes through the side wall of the first air inlet (11) and is fixedly connected to one of the first connecting plates, and the other first connecting plate is rotatably connected to the side wall of the first air inlet (11) on the end away from the first motor (4).

3. A double laminar flow air conditioning box according to claim 2, characterized in that: The second damper (3) comprises a second arc-shaped plate (31) and two second connecting plates connected in an integral manner, wherein the two second connecting plates are connected to both ends of the second arc-shaped plate (31) along the direction of its rotation axis, and the second motor (5) is arranged on the outer wall of the second air inlet (12) on the side away from the first air inlet (11), and the free end of the driving shaft of the second motor (5) passes through the side wall of the second air inlet (12) and is fixedly connected to one of the second connecting plates, and the other second connecting plate is rotatably connected to the side wall of the second air inlet (12) on the end away from the second motor (5).

4. A double laminar flow air conditioning box according to claim 3, characterized in that: The first damper (2) is provided with a first sealing strip (22), and the second damper (3) is provided with a second sealing strip (32).

5. A double laminar flow air conditioning box according to claim 1, characterized in that: It also includes a detection component for detecting the humidity of the air in the vehicle to generate a first signal. The detection component is electrically connected to the controller, and the controller controls the start and stop of the first motor (4) and the second motor (5) respectively according to the first signal.

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