Axial-flow type double-layer-flow air conditioning cabinet structure

Abstract

The utility model belongs to the technical field of automobile air conditioners, and particularly relates to an axial flow type double-layer flow air conditioning box structure which comprises an air inlet box and a distribution box which are installed on the same straight line, an inner circulation air inlet, an outer circulation air inlet and a switching air door are arranged in the air inlet box, and a filter screen, an evaporator core body, a plurality of air outlets and a partition plate are arranged in the distribution box. A partition plate is arranged in the distribution box and divides the distribution box into an upper-layer flow channel and a lower-layer flow channel, a double-end axial flow fan is further arranged in the air inlet box and comprises a motor, an upper impeller and a lower impeller are arranged at the upper end and the lower end of the motor respectively, and the upper impeller is used for conveying inlet air of the inner circulation air inlet or the outer circulation air inlet into the upper-layer flow channel. The lower impeller is used for conveying inlet air of the inner circulation air inlet or the outer circulation air inlet into the lower-layer flow channel; the problems that an existing air conditioning box is large in size and not beneficial to optimization of in-vehicle space layout, and a traditional middle-mounted air conditioner is difficult to achieve a double-layer-flow air inlet mode are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile air conditioners, and in particular relates to an axial-flow double-layer-flow air conditioner box structure. Background Art

[0002] Double-flow air conditioning is a key development in modern air conditioning technology, demonstrating significant advantages in temperature uniformity, improved comfort, and energy conservation. Automotive air conditioners typically consist of an air inlet box and a distribution box, separated by a volute housing containing a blower. Depending on the vehicle's assembly position, automotive air conditioners are categorized as center-mounted or offset-mounted. Traditional center-mounted and offset-mounted air conditioner housings present the following challenges:

[0003] 1. Regardless of whether it is offset or center-mounted, the air inlet box is placed on the left or right side of the distribution box, which occupies a large Y-direction space and is not conducive to the layout of the cabin space;

[0004] 2. Regardless of the offset or center type, centrifugal fans are used, and the volute box takes up a large space, resulting in a larger overall volume of the air conditioning box;

[0005] 3. Due to its structure, traditional center-mounted air conditioners are difficult to achieve a double-layer air intake mode and have high energy consumption. Utility Model Content

[0006] The purpose of this utility model is to provide an axial-flow double-layer air-conditioning box structure to solve the problem that the existing air-conditioning box is large in size, which is not conducive to optimizing the space layout in the car, and the traditional center-mounted air conditioner is difficult to achieve a double-layer air intake mode.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] The fan is moved along the axial flow path through the fan, and the fan is rotated along the axial flow path through the fan, so that the fan is rotated along the axial flow path and the fan is rotated along the axial flow path.

[0009] Furthermore, the air inlet box and the distribution box are detachably connected.

[0010] Furthermore, the upper impeller and the lower impeller are respectively provided with an upper cover shell and a lower cover shell, the upper cover shell and the lower cover shell are respectively provided with an upper air inlet and a lower air inlet along their axial direction, and the upper cover shell and the lower cover shell are respectively provided with an upper air outlet and a lower air outlet along their radial direction, and the upper air outlet and the lower air outlet are respectively connected to the upper flow channel and the lower flow channel.

[0011] Furthermore, a temperature damper and a warm air core are provided between the evaporator core and the plurality of air outlets.

[0012] Furthermore, the air outlet includes a defrost air outlet, a front face air outlet, a front foot air outlet, a rear foot air outlet and a rear face air outlet. The defrost air outlet, the front face air outlet, the front foot air outlet, the rear foot air outlet and the rear face air outlet are respectively provided with a defrost damper, a front face damper, a front foot damper, a rear face damper and a rear foot damper for adjusting the air outlet volume.

[0013] Compared with the existing technology, the utility model has the following beneficial technical effects: the air inlet box and the distribution box of the utility model are arranged front and back, which reduces the Y-direction size of the air-conditioning box compared with the traditional offset or center-mounted air-conditioning box; and, the utility model adopts a double-headed axial flow fan to achieve double-laminar air intake, which is more compact than the centrifugal fan, further reduces the overall volume of the air-conditioning box, and saves installation space; the air-conditioning box of the utility model has a simple and reliable structure. On the basis of realizing the double-laminar flow function, according to the boundary layout of the whole vehicle, the air inlet box and the distribution box can be selected as two detachably connected parts, which has higher flexibility and can meet the air-conditioning installation requirements of left-hand drive vehicles and right-hand drive vehicles. It has good compatibility and reduces R&D costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic structural diagram of a double-ended axial flow fan of the present invention;

[0016] Figure 3 It is a top view of the utility model;

[0017] Figure 4 This is a schematic diagram of the internal circulation mode of the utility model;

[0018] Figure 5 This is a schematic diagram of the external circulation mode of the utility model;

[0019] Figure 6 This is a schematic diagram of the double-layer flow mode of the present invention.

[0020] The reference numerals in the figure include: air inlet box 1, internal circulation air inlet 11, internal circulation damper 111, external circulation air inlet 12, external circulation damper 121, conversion damper 13, double-head axial flow fan 2, motor 21, upper impeller 22, lower impeller 23, upper cover 24, upper air inlet 241, upper air outlet 242, lower cover 25, lower air inlet 251, lower air outlet 252, distribution box 3, defrost air outlet 31, defrost damper 311, front blowing face air outlet 32, front blowing face damper 321, front blowing foot air outlet 33, front blowing foot damper 331, rear blowing face air outlet 34, rear blowing face damper 341, rear blowing foot air outlet 35, rear blowing foot damper 351, partition 4, upper flow channel 41, lower flow channel 42, filter 5, evaporator core 6, temperature damper 7, warm air core 8. DETAILED DESCRIPTION

[0021] The following is further described in detail through specific implementation methods:

[0022] like Figure 1-3 As shown, an axial flow double-layer air conditioning box structure includes an air inlet box 1 and a distribution box 3 installed in the same straight line; the air inlet box 1 is provided with an internal circulation air inlet 11, an external circulation air inlet 12 and a conversion damper 13, the internal circulation air inlet 11 and the external circulation air inlet 12 are respectively provided with an internal circulation damper 111 and an external circulation damper 121 for adjusting the air intake volume, and the conversion damper 13 is located between the internal circulation air inlet 11 and the external circulation air inlet 12; the distribution box 3 is provided with a filter 5, an evaporator core 6, a temperature damper 7, a warm air core 8, and a plurality of air outlets in sequence, the air outlets including a defrost air outlet 31, a front blowing air outlet 32, a front blowing foot air outlet 33, a rear blowing air outlet 34, and a back blowing air outlet 35. 4 and the rear foot-blowing air vents 35, the defrost air vents 31, the front face air vents 32, the front foot-blowing air vents 33, the rear face air vents 34 and the rear foot-blowing air vents 35 are respectively provided with a defrost damper 311, a front face damper 321, a front foot-blowing damper 331, a rear face damper 341 and a rear foot-blowing damper 351 for adjusting the air outlet volume; by arranging dampers at each air inlet and air outlet, the air inlet and air outlet volume can be adjusted, and by arranging a temperature damper 7 between the evaporator core 6 and the heater core 8, the proportion of air passing through the evaporator core 6 and the heater core 8 can be adjusted, thereby controlling the air temperature of each air outlet, meeting different usage requirements, and improving the comfort of the driver and passengers.

[0023] like Figure 1-2As shown, a double-headed axial flow fan 2 is also provided in the air inlet box 1, and the double-headed axial flow fan 2 includes a motor 21. An upper impeller 22 and a lower impeller 23 are respectively installed at the upper end and the lower end of the motor 21. An upper cover shell 24 and a lower cover shell 25 are respectively installed outside the upper impeller 22 and the lower impeller 23. The upper cover shell 24 and the lower cover shell 25 are respectively formed with an upper air inlet 241 and a lower air inlet 251 along their axial directions, and an upper air outlet 242 and a lower air outlet 252 are respectively formed with the upper cover shell 24 and the lower cover shell 25 along their radial directions. A partition 4 is also provided in the distribution box 3, and the partition 4 separates the distribution box 3 into an upper flow channel 41 and a lower flow channel 42. The upper air outlet 242 and the lower air outlet 252 of the double-headed axial flow fan 2 are respectively formed with the upper air inlet 241 and the lower air inlet 251 along their axial directions. The air outlet 252 is connected to the upper flow channel 41 and the lower flow channel 42 respectively; the air from the internal circulation air inlet 11 or the external circulation air inlet 12 enters the upper flow channel 41 through the upper air inlet 241 and the upper air outlet 242 of the upper cover shell 24 under the action of the upper impeller 22, and the air from the internal circulation air inlet 11 or the external circulation air inlet 12 enters the lower flow channel 42 through the lower air inlet 251 and the lower air outlet 252 of the lower cover shell 25 under the action of the lower impeller 23; by setting the conversion damper 13, the double-headed axial flow fan 2 and the partition 4, the internal circulation air and the external circulation air can be independently transported, the double-layer flow air intake mode is realized, and the purpose of energy saving and high efficiency is achieved.

[0024] The air inlet box 1 and the distribution box 3 of this embodiment are arranged front and back, which effectively reduces the Y-direction size of the air-conditioning box, and adopts a compact double-head axial fan 2, which further reduces the overall volume of the air-conditioning box, saves the installation space of the cockpit, and is conducive to optimizing the layout inside the vehicle.

[0025] The working modes of the axial-flow double-layer air-conditioning box structure of this embodiment include:

[0026] 1. Internal circulation mode (such as Figure 4 As shown), the internal circulation damper 111 is opened, the conversion damper 13 is opened, and the external circulation damper 121 is closed. The flow path of the indoor air is as follows Figure 4 As shown by the arrows in the figure, the air enters the air inlet box 1 from the internal circulation air inlet 11, and the upper impeller 22 and the lower impeller 23 of the double-headed axial flow fan 2 respectively transport the internal circulation air to the upper flow channel 41 and the lower flow channel 42 of the distribution box 3. The internal circulation air passes through the filter 5, the evaporator core 6 and the warm air core 7 in turn, and is then transported to each air outlet.

[0027] 2. External circulation mode (such as Figure 5 As shown), the external circulation damper 121 is opened, the conversion damper 13 is opened, the internal circulation damper 111 is closed, and the flow path of the outdoor air is as follows Figure 5As shown by the arrows in the figure, the air enters the air inlet box 1 from the external circulation air inlet 12, and the upper impeller 22 and the lower impeller 23 of the double-headed axial flow fan 2 respectively transport the external circulation air to the upper flow channel 41 and the lower flow channel 42 of the distribution box 3. The external circulation air passes through the filter 5, the evaporator core 6 and the warm air core 7 in turn, and is then transported to each air outlet.

[0028] 3. Double-layer flow mode (such as Figure 6 As shown), the internal circulation damper 111 is opened, the switching damper 13 is closed, and the external circulation damper 121 is opened. The flow paths of indoor air and outdoor air are as follows: Figure 6 As shown by the arrows in the figure, the air enters the air inlet box 1 from the internal circulation air inlet 11 and the external circulation air inlet 12 respectively. The upper impeller 22 of the double-headed axial flow fan 2 transports the internal circulation air to the upper flow channel 41 of the distribution box 3, and the lower impeller 23 transports the external circulation air to the lower flow channel 42. The internal circulation air and the external circulation air are transported to each air outlet after passing through the filter 5, the evaporator core 6 and the warm air core 7 in turn.

[0029] The axial-flow double-layer air-conditioning box of this embodiment has a simple and reliable structure. On the basis of realizing the double-layer flow function, according to the boundary layout of the entire vehicle, the air inlet box 1 and the distribution box 3 can be set as an integral type, which makes the installation operation of workers simpler and faster, or the air inlet box 1 and the distribution box 3 can be set as two detachably connected parts, which is more flexible and can meet the air-conditioning installation requirements of left-hand drive vehicles and right-hand drive vehicles. It has good compatibility and reduces R&D costs.

Claims

1. An axial-flow double-layer air-conditioning box structure, comprising an air inlet box (1) and a distribution box (3), wherein the air inlet box (1) is provided with an inner circulation air inlet (11) and an outer circulation air inlet (12), and the inner circulation air inlet (11) and the outer circulation air inlet (12) are respectively provided with an inner circulation damper (111) and an outer circulation damper (121) for adjusting the air intake volume, characterized in that: The air inlet box (1) and the distribution box (3) are installed on the same straight line. The air inlet box (1) is provided with a conversion damper (13) and a double-headed axial flow fan (2). The conversion damper (13) is located between the inner circulation air inlet (11) and the outer circulation air inlet (12). The distribution box (3) is also provided with a partition (4), a filter (5), an evaporator core (6) and a plurality of air outlets. The partition (4) divides the distribution box (3) into an upper flow channel (41) and a lower flow channel (42). The double-head axial flow fan (2) includes a motor (21), and an upper impeller (22) and a lower impeller (23) are respectively provided at the upper end and the lower end of the motor (21). The upper impeller (22) is used to transport the air from the inner circulation air inlet (11) or the outer circulation air inlet (12) to the upper flow channel (41), and the lower impeller (23) is used to transport the air from the inner circulation air inlet (11) or the outer circulation air inlet (12) to the lower flow channel (42).

2. The axial-flow double-layer air-conditioning box structure according to claim 1 is characterized in that: The air inlet box (1) and the distribution box (3) are detachably connected.

3. The axial-flow double-layer air-conditioning box structure according to claim 1 or 2, characterized in that: An upper cover shell (24) and a lower cover shell (25) are respectively provided outside the upper impeller (22) and the lower impeller (23); an upper air inlet (241) and a lower air inlet (251) are respectively provided on the upper cover shell (24) and the lower cover shell (25) along their axial directions; an upper air outlet (242) and a lower air outlet (252) are respectively provided on the upper cover shell (24) and the lower cover shell (25) along their radial directions; the upper air outlet (242) and the lower air outlet (252) are respectively communicated with the upper flow channel (41) and the lower flow channel (42).

4. The axial-flow double-layer air-conditioning box structure according to claim 1 or 2, characterized in that: A temperature damper (7) and a warm air core (8) are provided between the evaporator core (6) and the plurality of air outlets.

5. The axial-flow double-layer air-conditioning box structure according to claim 1 or 2, characterized in that: The air outlet comprises a defrost air outlet (31), a front face air outlet (32), a front foot air outlet (33), a rear face air outlet (34) and a rear foot air outlet (35); the defrost air outlet (31), the front face air outlet (32), the front foot air outlet (33), the rear face air outlet (34) and the rear foot air outlet (35) are respectively provided with a defrost air door (311), a front face air door (321), a front foot air door (331), a rear face air door (341) and a rear foot air door (351) for adjusting the air output volume.

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