Host machine of automobile air conditioner

Abstract

The invention discloses an automobile air conditioner host which comprises an air inlet assembly and a distribution box assembly, the air inlet assembly comprises an air inlet box body and an air blower, an air blowing box is arranged in the air inlet box body, a partition plate is arranged in the air blowing box and divides the inner space of the air blowing box into an upper cavity and a lower cavity, and the air blower is fixedly arranged at the bottom in the air inlet box body; upper-layer fan blades and lower-layer fan blades are fixedly arranged on an output shaft of the air blower, the upper-layer fan blades are located in the upper cavity, the lower-layer fan blades are located in the lower cavity, and an upper-layer air inlet channel and a lower-layer air inlet channel are formed in the upper portion of the air inlet box body. The air outlet temperature can be independently controlled front, back, left and right, energy is effectively saved during heating in winter, and the endurance of the whole vehicle is improved.

Description

Technical Field

[0001] The invention relates to an automobile air-conditioning mainframe, belonging to the technical field of automobile air-conditioning. Background Art

[0002] New energy vehicles are increasingly being used, but their endurance has always been a major factor restricting the development of new energy vehicles. Especially in winter, when the temperature is low, the endurance problem is more serious. Therefore, measures need to be taken to reduce the energy consumption of the entire vehicle. There are multiple solutions for winter heating in the air conditioning system. First, PTC heating, which directly uses electric energy for heating. Second, heat pump heating, which absorbs heat outside the vehicle through the heat pump. Both are ultimately reflected in heating the air in the air conditioning box.

[0003] When using air conditioning in winter, in order to avoid fogging of the glass inside the car, external circulation must be used. The air conditioning box sucks in cold air outside the car, heats it and sends it out from the air outlet. The lower the temperature outside the car, the more energy is consumed. If the air inside the car can be introduced, heated and then sent to the air outlet, a lot of energy will be saved, but the problem of fogging of the glass affecting driving safety needs to be avoided. Summary of the invention

[0004] The purpose of the present invention is to provide a car air-conditioning main unit to solve the technical problems in the prior art. It can realize independent control of the air outlet temperature in the front, back, left and right directions, effectively save energy during winter heating, and improve the endurance of the entire vehicle.

[0005] The present invention provides an automobile air-conditioning main unit, comprising an air intake assembly and a distribution box assembly, wherein the air intake assembly comprises an air intake box and a blower, wherein the air intake box is provided with a blow box, wherein the blow box is provided with a partition, wherein the partition divides the internal space of the blow box into an upper chamber and a lower chamber, wherein the blower is fixedly arranged at the bottom of the air intake box, wherein an upper layer of fan blades and a lower layer of fan blades are fixedly arranged on an output shaft of the blower, wherein the upper layer of fan blades are located in the upper chamber, and the lower layer of fan blades are located in the lower chamber, and wherein an upper layer of air intake channel and a lower layer of air intake channel are provided at the upper portion of the air intake box.

[0006] In the aforementioned automobile air-conditioning main unit, preferably, the number of the upper air intake channel is one, the upper air intake channel is located in the middle of the air intake box, the upper end of the upper air intake channel has an upper air inlet port, and the lower end of the upper air intake channel is connected to the upper chamber through an air-conditioning filter element.

[0007] In the aforementioned automobile air-conditioning main unit, preferably, the number of the lower-layer air intake channels is two, and the two lower-layer air intake channels are located on both sides of the upper-layer air intake channel. The upper ends of the two lower-layer air intake channels are formed with lower-layer air inlets, and connecting air channels are formed between the outer walls on both sides of the blower box and the inner walls of the air intake box body. The upper end of the connecting air channel is connected to the lower end of the lower-layer air intake channel through the air-conditioning filter element, and the lower end of the connecting air channel is connected to the bottom of the lower chamber.

[0008] In the aforementioned automobile air-conditioning main unit, preferably, the air intake assembly is connected to the distribution box assembly through a connecting pipe, and the connecting pipe has a first air duct and a second air duct, one end of the first air duct is connected to the upper chamber, and the other end of the first air duct is connected to the upper air intake cavity in the distribution box assembly; one end of the second air duct is connected to the lower chamber, and the other end of the second air duct is connected to the lower air intake cavity in the distribution box assembly.

[0009] In the aforementioned automobile air-conditioning main unit, preferably, an upper air intake damper is rotatably installed in the upper air intake passage, a first drive motor is arranged on the outer wall of the air intake box, and the output shaft of the first drive motor is connected to the rotating shaft of the upper air intake damper through a first connecting rod.

[0010] In the aforementioned automobile air-conditioning main unit, preferably, a lower-level air intake damper is provided in each of the two lower-level air intake passages, the rotating shafts of the two lower-level air intake dampers are fixedly connected by a second connecting rod, and a second drive motor is provided on the outer wall of the air intake box, and the output shaft of the second drive motor is connected to the rotating shaft of one of the lower-level air intake dampers.

[0011] In the aforementioned automobile air-conditioning main unit, preferably, the distribution box assembly includes a distribution box shell, an evaporator and a heater, the interior of the distribution box shell is divided into an air intake chamber and a gas distribution chamber by a retaining wall, the air intake chamber is divided into the upper air intake chamber and the lower air intake chamber by a first transverse partition, the evaporator is arranged in the air intake chamber, a heating chamber is arranged in the gas distribution chamber, and the heater is fixed in the heating chamber.

[0012] In the aforementioned automobile air-conditioning main unit, preferably, a first longitudinal partition is provided in the gas distribution chamber, and the first longitudinal partition divides the gas distribution chamber into a left temperature zone and a right temperature zone. A second transverse partition is also fixedly provided in the gas distribution chamber, and the second transverse partition divides the left temperature zone into an upper left temperature zone and a lower left temperature zone, and the second transverse partition divides the right temperature zone into an upper right temperature zone and a lower right temperature zone. A second longitudinal partition is provided in the lower left temperature zone, and the lower left temperature zone is divided into a lower left first temperature zone and a lower left second temperature zone by the second longitudinal partition. A third longitudinal partition is provided in the lower right temperature zone, and the lower right temperature zone is divided into a lower right first temperature zone and a lower right second temperature zone by the third longitudinal partition.

[0013] In the aforementioned automobile air-conditioning main unit, preferably, two front-row temperature dampers, two auxiliary front-row temperature dampers and two second-row temperature dampers are arranged between the air intake chamber and the gas distribution chamber, and front-row partition dampers are arranged between the lower left first temperature zone and the upper left temperature zone and between the lower right first temperature zone and the upper right temperature zone.

[0014] In the aforementioned automobile air-conditioning main unit, preferably, the distribution box shell is provided with two front-row face-blowing air ducts, two front-row foot-blowing air ducts, two second-row face-blowing air ducts, two second-row foot-blowing air ducts and a defrost air duct, the two front-row face-blowing air ducts are respectively provided with a front-row face-blowing air door, the two front-row foot-blowing air ducts are respectively provided with a front-row foot-blowing air door, the two second-row face-blowing air ducts are respectively provided with a second-row face-blowing air door, the two second-row foot-blowing air ducts are respectively provided with a second-row foot-blowing air door, and the defrost air duct is provided with a defrost air door.

[0015] Compared with the prior art, the present invention includes an air intake assembly and a distribution box assembly, the air intake assembly includes an air intake box and a blower, the air intake box is provided with a blower box, the blower box is provided with a partition, the partition divides the internal space of the blower box into an upper chamber and a lower chamber, the blower is fixed at the bottom of the air intake box, the output shaft of the blower is fixed with an upper layer of fan blades and a lower layer of fan blades, the upper layer of fan blades are located in the upper chamber, the lower layer of fan blades are located in the lower chamber, and the upper part of the air intake box is provided with an upper layer of air intake channel and a lower layer of air intake channel. The present invention separates the upper and lower air intakes by dividing the blower box into an upper chamber and a lower chamber, and when heating in winter, the intake amount of the air outside the vehicle and the air inside the vehicle can be controlled, which can not only achieve energy saving, but also prevent the glass from fogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an axonometric view of the present invention;

[0017] Figure 2 is a bottom view of the present invention;

[0018] Figure 3 yes Figure 2BB view;

[0019] Figure 4 is a front view of the present invention;

[0020] Figure 5 It is a schematic diagram of the internal structure of the intake assembly;

[0021] Figure 6 It is a structural schematic diagram after the connecting pipe is cut open;

[0022] Figure 7 This is a schematic diagram of the internal structure of the distribution box assembly viewed from the front of the vehicle to the rear of the vehicle;

[0023] Figure 8 yes Figure 7 DD cross-sectional view;

[0024] Fig. 9 yes Figure 7 CC cross-sectional view.

[0025] Description of the accompanying drawings: air intake box 1, blower 2, blower box 3, partition 4, upper chamber 5, lower chamber 6, upper fan blade 7, lower fan blade 8, upper air intake channel 9, lower air intake channel 10, air conditioning filter 11, connecting air duct 12, connecting pipe 13, upper air intake damper 14, first drive motor 15, first connecting rod 16, lower air intake damper 17, second connecting rod 18, second drive motor 19, distribution box housing 20, evaporator 21, heater 22, air intake cavity 23, gas distribution cavity 24, first transverse partition 25, upper air intake cavity 26, lower air intake cavity 27, heating cavity 28, first longitudinal partition Plate 29, second transverse partition 30, upper left temperature zone 31, upper right temperature zone 32, second longitudinal partition 33, lower left first temperature zone 34, lower left second temperature zone 35, third longitudinal partition 36, lower right first temperature zone 37, lower right second temperature zone 38, retaining wall 39, two auxiliary front row temperature dampers 40, second row temperature dampers 41, front row partition dampers 42, front row face-blowing air duct 43, front row foot-blowing air duct 44, second row face-blowing air duct 45, second row foot-blowing air duct 46, defrost air duct 47, front row face-blowing air door 48, front row foot-blowing air door 49, second row face-blowing air door 50, second row foot-blowing air door 51, front row temperature damper 52, defrost damper 53. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0027] Embodiments of the present invention: Figure 1-Figure 9As shown, a car air-conditioning main unit includes an air intake assembly and a distribution box assembly, the air intake assembly includes an air intake box body 1 and a blower 2, a blow box 3 is arranged in the air intake box body 1, a partition 4 is arranged in the blow box 3, the partition 4 divides the internal space of the blow box 3 into an upper chamber 5 and a lower chamber 6, the blower 2 is fixedly arranged at the bottom of the air intake box body 1, an upper fan blade 7 and a lower fan blade 8 are fixedly arranged on the output shaft of the blower 2, the upper fan blade 7 is located in the upper chamber 5, and the lower fan blade 8 is located in the lower chamber 6, and an upper air intake channel 9 and a lower air intake channel 10 are arranged on the upper part of the air intake box body 1.

[0028] In this embodiment, the upper blades 7 and the lower blades 8 are an integrated structure, and the connection position of the upper blades 7 and the lower blades 8 is flush with the partition 4, and the partition 4 has a circular through hole for the upper blades 7 to pass through. There is a certain distance between the bottom surface of the blower box 3 and the bottom plate of the air intake box 1, and the bottom surface of the blower box 3 is an open structure for the lower chamber 6 to take in air.

[0029] Specifically, there is one upper air intake channel 9, which is located in the middle of the air intake box 1. The upper end of the upper air intake channel 9 has an upper air inlet port, and the lower end of the upper air intake channel 9 is connected to the upper chamber 5 through the air conditioning filter 11.

[0030] The air enters the upper air inlet channel 9 through the upper air inlet, enters the upper chamber 5 after being filtered by the air conditioning filter element 11, and enters the distribution box assembly after being accelerated by the upper fan blades 7.

[0031] Furthermore, there are two lower-layer air intake channels 10, which are located on both sides of the upper-layer air intake channel 9. Lower-layer air inlets are formed at the upper ends of the two lower-layer air intake channels 10. Connecting air channels 12 are formed between the outer walls on both sides of the blower box 3 and the inner walls of the air intake box body 1. The upper end of the connecting air channel 12 is connected to the lower end of the lower-layer air intake channel 10 through the air conditioning filter element 11, and the lower end of the connecting air channel 12 is connected to the bottom of the lower chamber 6.

[0032] The air enters the two lower air inlet channels 10 through the two lower air inlets, and after being filtered by the air conditioning filter element 11, enters the lower chamber 6 from the bottom of the lower chamber 6 through the two connecting air ducts 12, and enters the distribution box assembly after being accelerated by the lower fan blades 8.

[0033] Furthermore, the air intake assembly is connected to the distribution box assembly through a connecting pipe 13, and a first air duct and a second air duct are provided in the connecting pipe 13. One end of the first air duct is connected to the upper chamber 5, and the other end of the first air duct is connected to the upper air intake chamber 26 in the distribution box assembly; one end of the second air duct is connected to the lower chamber 6, and the other end of the second air duct is connected to the lower air intake chamber 27 in the distribution box assembly.

[0034] Furthermore, an upper air intake damper 14 is rotatably installed in the upper air intake passage 9 , a first drive motor 15 is provided on the outer wall of the air intake box 1 , and an output shaft of the first drive motor 15 is connected to the rotating shaft of the upper air intake damper 14 via a first connecting rod 16 .

[0035] It should be noted that since the upper air intake channel 9 is located between the two lower air intake channels 10, and the first drive motor 15 is located on the outer wall of one side of the air intake box 1, the first connecting rod 16 needs to pass through one of the lower air intake channels 10 in order to be connected to the output shaft of the first drive motor 15.

[0036] By controlling the first drive motor 15 , the angle of the upper air intake damper 14 can be adjusted, thereby adjusting the opening of the upper air intake passage 9 , thereby controlling the amount of gas entering the upper chamber 5 .

[0037] Furthermore, a lower-level air intake damper 17 is provided in each of the two lower-level air intake passages 10, and the rotating shafts of the two lower-level air intake dampers 17 are fixedly connected by a second connecting rod 18. A second drive motor 19 is provided on the outer wall of the air intake box 1, and the output shaft of the second drive motor 19 is connected to the rotating shaft of one of the lower-level air intake dampers 17.

[0038] The openings of the two lower air intake dampers 17 only need to be kept consistent, so that the two lower air intake dampers 17 can be controlled simultaneously by a second drive motor 19, thereby reducing manufacturing costs and simplifying the structure. Since the two lower air intake passages 10 are located on both sides of the upper air intake passage 9, the second connecting rod 18 needs to penetrate the upper air intake passage 9 in order to be fixedly connected to the rotating shafts of the two lower air intake dampers 17.

[0039] The distribution box assembly is introduced below. The distribution box assembly includes a distribution box shell 20, an evaporator 21 and a heater 22. The interior of the distribution box shell 20 is divided into an air inlet chamber 23 and a gas distribution chamber 24 by a retaining wall 39. The retaining wall 39 is vertically arranged. The space of the air inlet chamber 23 is smaller than the space of the gas distribution chamber 24. The air inlet chamber 23 is divided into an upper air inlet chamber 26 and a lower air inlet chamber 27 by a first transverse partition 25. The evaporator 21 is arranged in the air inlet chamber 23, and a heating chamber 28 is arranged in the gas distribution chamber 24. The heater 22 is fixed in the heating chamber 28.

[0040] The evaporator 21 passes through the first transverse partition 25, that is, the upper part of the evaporator 21 is located in the upper air inlet cavity 26, and the lower part of the evaporator 21 is located in the lower air inlet cavity 27. The evaporator 21 can cool the gas in the upper air inlet cavity 26 and the lower air inlet cavity 27. The evaporator 21 is a prior art, and its working principle will not be repeated in this embodiment.

[0041] Furthermore, a first longitudinal partition 29 is provided in the gas distribution chamber 24, and the first longitudinal partition 29 divides the gas distribution chamber 24 into a left temperature zone and a right temperature zone. A second transverse partition 30 is also fixedly provided in the gas distribution chamber 24, and the second transverse partition 30 divides the left temperature zone into an upper left temperature zone 31 and a lower left temperature zone, and the second transverse partition 30 divides the right temperature zone into an upper right temperature zone 32 and a lower right temperature zone. A second longitudinal partition 33 is provided in the lower left temperature zone, and the lower left temperature zone is divided into a lower left first temperature zone 34 and a lower left second temperature zone 35 by the second longitudinal partition 33. A third longitudinal partition 36 is provided in the lower right temperature zone, and the lower right temperature zone is divided into a lower right first temperature zone 37 and a lower right second temperature zone 38 by the third longitudinal partition 36.

[0042] Please refer to Figure 7 The interior of the gas distribution chamber 24 is a left-right symmetrical structure. The upper part of the gas distribution chamber 24 is the upper left temperature zone 31 and the upper right temperature zone 32. The lower part of the gas distribution chamber 24 is the lower left first temperature zone 34, the lower left second temperature zone 35, the lower right second temperature zone 38 and the lower right first temperature zone 37 from left to right.

[0043] After passing through the evaporator 21, a portion of the gas in the lower air intake chamber 27 directly enters the lower left first temperature zone 34, the lower left second temperature zone 35, the lower right second temperature zone 38 and the lower right first temperature zone 37, and the other portion enters the heating chamber 28 and passes through the heater 22 and enters the lower left first temperature zone 34, the lower left second temperature zone 35, the lower right second temperature zone 38 and the lower right first temperature zone 37 respectively.

[0044] After passing through the evaporator 21 , part of the gas in the upper air inlet cavity 26 directly enters the upper left temperature zone 31 and the upper right temperature zone 32 , and the other part enters the heating cavity 28 and passes through the heater 22 and enters the upper left temperature zone 31 and the upper right temperature zone 32 respectively.

[0045] Two front row temperature dampers 52, two auxiliary front row temperature dampers 40 and two second row temperature dampers 41 are arranged between the air inlet chamber 23 and the gas distribution chamber 24. The two front row temperature dampers 52 are used to adjust the temperature of the upper left temperature zone 31 and the upper right temperature zone 32 respectively. For the sake of convenience, the temperature adjustment of the upper left temperature zone 31 is taken as an example to illustrate, and the angle of the front temperature damper 52 is adjusted. When the front temperature damper 52 completely blocks the connecting hole between the air intake chamber 23 and the upper left temperature zone 31, the gas in the upper air intake chamber 26 all enters the heating chamber 28, is heated by the heater 22 and then discharged into the upper left temperature zone 31. At this time, the temperature in the upper left temperature zone 31 is the highest; when the front temperature damper 52 completely blocks the connecting hole between the upper air intake chamber 26 and the heating chamber 28, the gas in the upper air intake chamber 26 all enters the upper left temperature zone 31. At this time, the temperature in the upper left temperature zone 31 is the lowest; by adjusting the angle of the front temperature damper 52, the ratio of the gas in the upper air intake chamber 26 directly entering the upper left temperature zone 31 and the gas entering the heating chamber 28 can be changed, so that the temperature in the upper left temperature zone 31 can be adjusted according to demand.

[0046] The temperature regulation principle is the same in the upper right temperature zone 32, the lower left first temperature zone 34, the lower left second temperature zone 35, the lower right second temperature zone 38 and the lower right first temperature zone 37. It should be noted that the gas in the upper left temperature zone 31 and the upper right temperature zone 32 enters from the gas in the upper air inlet cavity 26, while the gas in the lower left second temperature zone 35, the lower right second temperature zone 38 and the lower right first temperature zone 37 enters from the gas in the lower air inlet cavity 27.

[0047] Furthermore, a front partition damper 42 is provided between the lower left first temperature zone 34 and the upper left temperature zone 31, and between the lower right first temperature zone 37 and the upper right temperature zone 32. By adjusting the opening and closing state of the front partition damper 42, the connection state between the lower left first temperature zone 34 and the upper left temperature zone 31, and the connection state between the lower right first temperature zone 37 and the upper right temperature zone 32 can be adjusted.

[0048] Furthermore, the distribution box shell 20 is provided with two front-row face-blowing air ducts 43, two front-row foot-blowing air ducts 44, two second-row face-blowing air ducts 45, two second-row foot-blowing air ducts 46 and a defrost air duct 47. The two front-row face-blowing air ducts 43 are respectively provided with a front-row face-blowing damper 48, the two front-row foot-blowing air ducts 44 are respectively provided with a front-row foot-blowing damper 49, the two second-row face-blowing air ducts 45 are respectively provided with a second-row face-blowing damper 50, the two second-row foot-blowing air ducts 46 are respectively provided with a second-row foot-blowing damper 51, and the defrost air duct 47 is provided with a defrost damper 53.

[0049] A total of eight dampers, including two front-row face dampers 48, two front-row foot dampers 49, two second-row face dampers 50, and two second-row foot dampers 51, are controlled by separate motors, so that the air volume of each air duct can be freely adjusted according to demand. The motor and the connection structure between the motor and each damper are all based on existing technology and will not be described in detail in this embodiment.

[0050] The adjustment of the outlet air temperature is achieved by adjusting the two front row temperature dampers 52, the two auxiliary front row temperature dampers 40 and the two second row temperature dampers 41. The front row temperature damper 52 in the upper left temperature zone 31 and the auxiliary front row temperature damper 40 in the lower left first temperature zone 34 are synchronously controlled in angle by the same motor using a gear rack structure. This technology is conventional in the art and will not be repeated in this embodiment. The front row temperature damper 52 in the upper right temperature zone 32 and the auxiliary front row temperature damper 40 in the lower right first temperature zone 37 are synchronously controlled in angle by the same motor using a gear rack structure. The two second row temperature dampers 41 are controlled separately by two motors. In this way, the outlet air temperature of the front left side, the front right side, the second row left side and the second row right side can be individually controlled according to demand.

[0051] In this embodiment, the upper air intake passage 9 is connected to the outside air, and the two lower air intake passages 10 are connected to the door air. In the internal circulation working mode, the front partition damper 42 is closed, and the lower air intake dampers 17 in the two lower air intake passages 10 are opened. The air in the vehicle passes through the air conditioning filter 11 and then enters the lower chamber 6 through the connecting air passage 12, and is sent into the lower air intake cavity 27 through the lower fan blades 8.

[0052] In the external circulation mode, the front partition damper 42 is closed, the upper air intake damper 14 in the upper air intake channel 9 is opened, and the outside air passes through the air conditioning filter 11 and enters the upper chamber 5, and is sent into the upper air intake cavity 26 under the action of the upper fan blades 7.

[0053] When using the air conditioner in winter, the internal and external circulation can work at the same time. The front partition damper 42 is opened, and the cold air outside the car enters the upper air intake chamber 26. After being heated by the heater 22, it is blown out from the defrost air duct 47. Because the air temperature outside the car is low, it will not fog up on the inside of the glass after blowing to the windshield. The energy consumed by heating this part of the intake air is the same as that of the traditional solution. At the same time, the high humidity and high temperature gas in the car enters the lower air intake chamber 27. After being heated by the heater 22, a part of it can be used for blowing the front row feet, the second row face and the second row feet, and the other part enters the upper left temperature zone 31 and the upper right temperature zone 32 through the front partition damper 42 for blowing the front row face. Because the air temperature inside the car is higher than the air temperature outside the car, the required heating energy is small during the heating process, which achieves the purpose of energy saving. It can not only solve the problem of fogging of the windshield, but also achieve energy saving.

[0054] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made according to the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present invention.

Claims

1. An automobile air conditioner main unit, comprising an air intake assembly and a distribution box assembly, characterized in that: The air intake assembly comprises an air intake box (1) and a blower (2); a blow box (3) is arranged in the air intake box (1); a partition (4) is arranged in the blow box (3); the partition (4) divides the internal space of the blow box (3) into an upper chamber (5) and a lower chamber (6); the blower (2) is fixedly arranged at the bottom of the air intake box (1); an upper layer of fan blades (7) and a lower layer of fan blades (8) are fixedly arranged on the output shaft of the blower (2); the upper layer of fan blades (7) are located in the upper chamber (5), and the lower layer of fan blades (8) are located in the lower chamber (6); an upper layer of air intake channel (9) and a lower layer of air intake channel (10) are arranged at the upper part of the air intake box (1).

2. The automobile air conditioner main unit according to claim 1, characterized in that: The number of the upper air intake channel (9) is one, the upper air intake channel (9) is located in the middle of the air intake box (1), the upper end of the upper air intake channel (9) is provided with an upper air intake port, and the lower end of the upper air intake channel (9) is connected to the upper chamber (5) via an air conditioning filter element (11).

3. The automobile air conditioning main unit according to claim 2, characterized in that: The number of the lower air intake channels (10) is two, and the two lower air intake channels (10) are located on both sides of the upper air intake channel (9). The upper ends of the two lower air intake channels (10) are both formed with lower air intake ports. A connecting air channel (12) is formed between the outer walls of both sides of the blower box (3) and the inner wall of the air intake box body (1). The upper end of the connecting air channel (12) is connected to the lower end of the lower air intake channel (10) through the air conditioning filter element (11), and the lower end of the connecting air channel (12) is connected to the bottom of the lower chamber (6).

4. The automobile air conditioning main unit according to claim 3, characterized in that: The air intake assembly is connected to the distribution box assembly via a connecting pipe (13), wherein the connecting pipe (13) has a first air passage and a second air passage, wherein one end of the first air passage is connected to the upper chamber (5), and the other end of the first air passage is connected to an upper air intake chamber (26) in the distribution box assembly; one end of the second air passage is connected to the lower chamber (6), and the other end of the second air passage is connected to a lower air intake chamber (27) in the distribution box assembly.

5. The automobile air conditioner main unit according to claim 3, characterized in that: An upper air intake damper (14) is rotatably mounted in the upper air intake passage (9), a first drive motor (15) is arranged on the outer wall of the air intake box (1), and an output shaft of the first drive motor (15) is connected to a rotating shaft of the upper air intake damper (14) via a first connecting rod (16).

6. The automobile air conditioning main unit according to claim 5, characterized in that: A lower air intake damper (17) is disposed in each of the two lower air intake passages (10); the rotating shafts of the two lower air intake dampers are fixedly connected via a second connecting rod (18); a second drive motor (19) is disposed on the outer wall of the air intake box (1); and the output shaft of the second drive motor (19) is connected to the rotating shaft of one of the lower air intake dampers (17).

7. The automobile air conditioner main unit according to claim 4, characterized in that: The distribution box assembly comprises a distribution box shell (20), an evaporator (21) and a heater (22); the interior of the distribution box shell (20) is divided into an air intake chamber (23) and a gas distribution chamber (24) by a retaining wall (39); the air intake chamber (23) is divided into an upper air intake chamber (26) and a lower air intake chamber (27) by a first transverse partition (25); the evaporator (21) is arranged in the air intake chamber (23); a heating chamber (28) is arranged in the gas distribution chamber (24); and the heater (22) is fixedly arranged in the heating chamber (28).

8. The automobile air conditioning main unit according to claim 7, characterized in that: A first longitudinal partition (29) is provided in the gas distribution chamber (24), and the first longitudinal partition (29) divides the gas distribution chamber (24) into a left temperature zone and a right temperature zone. A second transverse partition (30) is also fixedly provided in the gas distribution chamber (24), and the second transverse partition (30) divides the left temperature zone into an upper left temperature zone (31) and a lower left temperature zone. The second transverse partition (30) divides the right temperature zone into an upper right temperature zone (32) and a lower right temperature zone. A second longitudinal partition (33) is provided in the lower left temperature zone, and the lower left temperature zone is divided into a lower left first temperature zone (34) and a lower left second temperature zone (35) by the second longitudinal partition (33). A third longitudinal partition (36) is provided in the lower right temperature zone, and the lower right temperature zone is divided into a lower right first temperature zone (37) and a lower right second temperature zone (38) by the third longitudinal partition (36).

9. The automobile air conditioning main unit according to claim 8, characterized in that: Two front-row temperature dampers (52), two auxiliary front-row temperature dampers (40) and two second-row temperature dampers (41) are arranged between the air inlet chamber (23) and the gas distribution chamber (24), and front-row partition dampers (42) are arranged between the lower left first temperature zone (34) and the upper left temperature zone (31) and between the lower right first temperature zone (37) and the upper right temperature zone (32).

10. The automobile air conditioner main unit according to claim 9, characterized in that: The distribution box housing (20) is provided with two front-row face-blowing air ducts (43), two front-row foot-blowing air ducts (44), two second-row face-blowing air ducts (45), two second-row foot-blowing air ducts (46) and a defrost air duct (47). The two front-row face-blowing air ducts (43) are respectively provided with a front-row face-blowing air door (48), the two front-row foot-blowing air ducts (44) are respectively provided with a front-row foot-blowing air door (49), the two second-row face-blowing air ducts (45) are respectively provided with a second-row face-blowing air door (50), the two second-row foot-blowing air ducts (46) are respectively provided with a second-row foot-blowing air door (51), and the defrost air duct (47) is provided with a defrost air door (53).

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