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CN112918218A - Air conditioning device and automobile - Google Patents

Air conditioning device and automobile Download PDF

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Publication number
CN112918218A
CN112918218A CN202110397459.XA CN202110397459A CN112918218A CN 112918218 A CN112918218 A CN 112918218A CN 202110397459 A CN202110397459 A CN 202110397459A CN 112918218 A CN112918218 A CN 112918218A
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CN
China
Prior art keywords
air
blower
heat exchanger
shell
centrifugal impeller
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CN202110397459.XA
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Chinese (zh)
Inventor
钟学伟
杨云
晁长青
阮安伟
杨家政
冉亚楠
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Zhejiang Yinlun Machinery Co Ltd
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Zhejiang Yinlun Machinery Co Ltd
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Application filed by Zhejiang Yinlun Machinery Co Ltd filed Critical Zhejiang Yinlun Machinery Co Ltd
Priority to CN202110397459.XA priority Critical patent/CN112918218A/en
Publication of CN112918218A publication Critical patent/CN112918218A/en
Priority to PCT/CN2022/074406 priority patent/WO2022218009A1/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007Combined heating, ventilating, or cooling devices
    • B60H1/00021Air flow details of HVAC devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007Combined heating, ventilating, or cooling devices
    • B60H1/00021Air flow details of HVAC devices
    • B60H2001/00078Assembling, manufacturing or layout details

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

本发明涉及车辆技术领域,尤其是涉及一种空调装置及汽车。所述空调装置,包括:机壳以及设置在所述机壳内的鼓风机、制冷换热器和制热换热器;所述鼓风机包括电机和与所述电机传动连接的离心叶轮,所述电机带动所述离心叶轮转动以使气体由所述离心叶轮的轴向进入所述离心叶轮并由所述离心叶轮的径向排出所述离心叶轮。本发明提供的空调装置能够实现叶轮直径相同时体积小,有利于实现扁平化;相同体积下,鼓风机叶轮直径可以比传统蜗壳式风机更大,实现更大的鼓风能力,从而本发明提供的空调装置能够实现同体积下出风效率高。

Figure 202110397459

The present invention relates to the technical field of vehicles, in particular to an air conditioner and an automobile. The air conditioner comprises: a casing and a blower, a cooling heat exchanger and a heating heat exchanger arranged in the casing; the blower comprises a motor and a centrifugal impeller drivingly connected with the motor, the motor The centrifugal impeller is driven to rotate, so that the gas enters the centrifugal impeller from the axial direction of the centrifugal impeller and is discharged from the centrifugal impeller radially from the centrifugal impeller. The air conditioning device provided by the present invention can realize the same impeller diameter and small volume, which is beneficial to realize flattening; under the same volume, the diameter of the impeller of the blower can be larger than that of the traditional volute type fan, so as to achieve greater blowing capacity, so the present invention provides The air conditioner can achieve high air outlet efficiency under the same volume.

Figure 202110397459

Description

Air conditioning device and automobile
Technical Field
The invention relates to the technical field of vehicles, in particular to an air conditioning device and an automobile.
Background
An air conditioning apparatus for a vehicle generally includes a casing, and a volute blower and a heat exchanger disposed in the casing, wherein the casing is provided with an air inlet and an air outlet, and the volute blower is disposed at a position close to the air inlet of the casing relative to the heat exchanger. The volute blower mainly comprises an impeller, a flange plate, an end cover, a motor, a volute and the like. The working principle of the volute type blower in the air conditioner is that the impeller rotates at a high speed to force gas to rotate, the gas does work to increase energy, the gas is radially thrown out towards the impeller and enters the volute under the action of centrifugal force, the cross-sectional area of the volute is gradually increased to reduce the speed of airflow, the kinetic energy is converted into pressure energy through the speed reduction effect, the gas is sucked into the shell of the air conditioner under the action of pressure difference, and the gas is discharged from the air outlet after reaching a set temperature through heat exchange. The air conditioner with the structure has large volume and large occupied space.
Disclosure of Invention
The invention aims to provide an air conditioner and an automobile, and solves the technical problems of large volume and large occupied space of the air conditioner in the prior art to a certain extent.
The present invention provides an air conditioner, comprising: the air conditioner comprises a shell, and a blower, a refrigerating heat exchanger and a heating heat exchanger which are arranged in the shell; the blower comprises a motor and a centrifugal impeller in transmission connection with the motor, and the motor drives the centrifugal impeller to rotate so that gas enters the centrifugal impeller from the axial direction of the centrifugal impeller and is discharged out of the centrifugal impeller from the radial direction of the centrifugal impeller.
Furthermore, the shell comprises an air inlet shell, a middle shell and an air distribution shell which are sequentially communicated; the refrigerating heat exchanger is arranged in the air inlet shell, and the air blower and the heating heat exchanger are both connected with the middle shell; the air inlet shell is provided with a main air inlet, and the main air inlet is positioned on one side of the refrigeration heat exchanger, which is far away from the air blower; the air distribution shell is provided with a main air outlet.
Further, the air inlet of the air blower is positioned in the axial direction of the air blower and faces the refrigeration heat exchanger, and the air outlet of the air blower is positioned in the radial direction of the air blower; the middle shell is provided with a flow guide structure, the flow guide structure is positioned at an air outlet of the air blower and used for guiding gas flowing out of an air outlet of the air blower to the direction of the air blower, which is far away from the refrigeration heat exchanger.
Further, the flow guide structure is a flow guide rib; the air blower is characterized in that one end, close to the air inlet of the air blower, of the flow guide rib is close to the air blower, and one end, far away from the air inlet of the air blower, of the flow guide rib is far away from the air blower.
Further, the water conservancy diversion muscle with middle casing integrated into one piece sets up.
As an alternative, in the height direction of the heating heat exchanger, one side of the heating heat exchanger is disposed in contact with the inner wall of the intermediate case, and the other side of the heating heat exchanger is disposed in contact with the inner wall of the case.
As an alternative, in the height direction of the heating heat exchanger, a space is provided between one side of the heating heat exchanger and the inner wall of the intermediate housing, and the other side of the heating heat exchanger is disposed in contact with the inner wall of the housing.
As an alternative, in the height direction of the heating heat exchanger, a space is provided between one side of the heating heat exchanger and the inner wall of the intermediate housing, and a space is provided between the other side of the heating heat exchanger and the inner wall of the housing.
Furthermore, the air conditioning device also comprises a flow guide air door which is rotationally connected to the heating heat exchanger; a cold air channel is formed among the diversion air door, the inner wall of the middle shell and the heating heat exchanger and is communicated with the air distribution shell; and a hot air channel is formed between the flow guide air door and the back surface of the air blower and is communicated with the heating heat exchanger.
As an alternative, the casing comprises an air inlet casing, a middle casing and an air distribution casing which are sequentially communicated, wherein a main air inlet is formed in the air inlet casing, and a main air outlet is formed in the air distribution casing; the air blower is arranged in the air inlet shell, and the heating heat exchanger and the refrigerating heat exchanger are arranged in the middle shell; the fan is an axial-radial flow fan, the axial-radial flow fan further comprises a fan shell, and the fan shell comprises a fan front shell and a fan rear shell which are connected with each other; an air inlet parallel to or coincident with the axis of the centrifugal impeller is formed in the front fan shell, and an air outlet parallel to or coincident with the axis of the centrifugal impeller is formed in the rear fan shell; the fan procapsid with casing sets up relatively behind the fan, the fan procapsid with form the installation cavity behind the fan between the casing, the motor with centrifugal impeller installs in the installation cavity.
Further, the side wall of the refrigeration heat exchanger is in contact with the inner wall of the middle shell, and the side wall of the heating heat exchanger is in contact with the inner wall of the middle shell.
Further, the air conditioning device also comprises an air filter, and the air filter is arranged on one side, far away from the main air inlet, of the axial-radial flow blower; the side wall of the air filter is in contact with the inner wall of the middle housing.
Furthermore, the air inlet shell, the middle shell and the air distribution shell are arranged independently, one side of the middle shell is connected with the air inlet shell in a sealing mode, and the other side of the middle shell is connected with the air distribution shell in a sealing mode;
or the air inlet shell, the middle shell and the air distribution shell are integrally arranged.
Furthermore, a plurality of despin blades are arranged at the air outlet, and the middle parts of the despin blades are arranged in a convex mode; the plurality of despin blades are arranged at intervals along the circumferential direction of the air outlet, and the arrangement direction of the plurality of despin blades is the same as the rotation direction of the centrifugal impeller.
Further, the inlet angle of the despinning blade is 55-67 degrees, and the outlet angle of the despinning blade is 90-93 degrees.
The invention provides an automobile which comprises an automobile body and the air conditioning device, wherein the air conditioning device is arranged in the automobile body.
The present invention provides an air conditioner, comprising: the air conditioner comprises a shell, and a blower, a refrigerating heat exchanger and a heating heat exchanger which are arranged in the shell; the blower comprises a motor and a centrifugal impeller in transmission connection with the motor, and the motor drives the centrifugal impeller to rotate so that gas enters the centrifugal impeller from the axial direction of the centrifugal impeller and is discharged out of the centrifugal impeller from the radial direction of the centrifugal impeller.
In the air conditioning device provided by the invention, the motor in the blower drives the centrifugal impeller to rotate, the impeller rotates at a high speed, gas is sucked into the blower, the blower applies work to the gas to generate a strong centrifugal force, and the backward inclined impeller fan blade of the centrifugal impeller rapidly throws the gas out along the radial direction of the centrifugal impeller, so that the gas enters the shell, the shell with a specific structure in the volute blower is not required to be arranged, the blower has a small volume and a small occupied space when the diameters of the impellers are the same, and compared with the air conditioning device adopting the traditional volute blower, the air conditioning device provided by the invention can realize the small volume when the diameters of the impellers are the same, and is beneficial to realizing the flattening; under the same volume, the diameter of the impeller of the air blower can be larger than that of the traditional volute type fan, and the larger air blowing capacity is realized, so that the air-conditioning device provided by the invention can realize high air outlet efficiency under the same volume.
It is to be understood that both the foregoing general description and the following detailed description are for purposes of illustration and description and are not necessarily restrictive of the disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of the disclosure. Together, the description and drawings serve to explain the principles of the disclosure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of an air conditioning apparatus according to a first embodiment of the present invention;
FIG. 2 is another schematic view of the air conditioning apparatus shown in FIG. 1;
FIG. 3 is a schematic structural diagram of an air conditioning apparatus according to a second embodiment of the present invention;
FIG. 4 is another schematic view of the air conditioning apparatus shown in FIG. 3;
FIG. 5 is a schematic structural diagram of a third embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a fourth embodiment of the present invention;
fig. 7 is a schematic structural view of a blower fan in the air conditioner shown in fig. 6;
FIG. 8 is another schematic view of the blower of FIG. 7;
FIG. 9 is a schematic structural view of a blower housing in the blower of FIG. 7;
FIG. 10 is a schematic view of the front blower housing of the blower housing of FIG. 9;
FIG. 11 is a schematic view of a rear blower housing of the blower housing of FIG. 9 from a first perspective;
FIG. 12 is a schematic view of a second perspective of a rear blower housing of the blower housing of FIG. 9;
FIG. 13 is a schematic view of the construction of an intermediate cover plate in the blower housing shown in FIG. 10;
FIG. 14 is a schematic gas flow diagram of the blower of FIG. 7;
FIG. 15 is a schematic view of the centrifugal impeller of the blower of FIG. 7;
FIG. 16 is a cut-away view of the centrifugal impeller shown in FIG. 15;
FIG. 17 is a schematic view of another aspect of the centrifugal impeller of FIG. 15;
FIG. 18 is a perspective view of the blades of the centrifugal impeller of FIG. 15;
fig. 19 is a structural view of another perspective of the blades in the centrifugal impeller shown in fig. 15.
Icon: 10-a housing; 20-a blower; 30-a refrigeration heat exchanger; 40-a heating heat exchanger; 50-total air inlet; 60-total air outlet; 70-diversion ribs; 80-a flow guide air door; 90-a cold air channel; 100-hot air channel; 110-cold wind position; 120-hot air position; 130-mode damper; 140-rib groove sealing structure; 150-an air filter; 11-an air inlet shell; 12-a middle shell; 13-air distribution shell; 21-a fan housing; 22-a centrifugal impeller; 23-a motor; 24-wind flow channel; 211-blower front housing; 212-blower rear housing; 213-air inlet; 214-an air outlet; 215-racemic leaf; 216-intermediate cover plate; 241-arc flow guide part; 2111-front containment slot; 2121-outer cover body; 2122-motor installation cavity; 2161-rear containing slot; 221-front connection plate; 222-a rear connection plate; 223-cover plate; 224-blades; 225-a hub; 226-shaft hole; 2241-a forward swept portion; 2242-leaf tip; 2243-blade root.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 4, the present invention provides an air conditioner including: a cabinet 10, and a blower fan 20, a cooling heat exchanger 30, and a heating heat exchanger 40 disposed in the cabinet 10; the blower comprises a motor and a centrifugal impeller in transmission connection with the motor, and the motor drives the centrifugal impeller to rotate so that gas enters the centrifugal impeller from the axial direction of the centrifugal impeller and is discharged out of the centrifugal impeller from the radial direction of the centrifugal impeller.
In the air conditioning device provided by the embodiment, the motor in the blower 20 drives the centrifugal impeller to rotate, the impeller rotates at a high speed to suck gas into the blower 20, the blower 20 applies work to the gas to generate a strong centrifugal force, and the backward inclined impeller fan blades of the centrifugal impeller rapidly throw the gas out along the radial direction of the centrifugal impeller, so that the gas enters the middle shell 12, a shell with a specific structure in a volute type blower is not needed, the blower is small in size and small in occupied space when the diameters of the impellers are the same, and compared with the air conditioning device adopting the traditional volute type blower, the air conditioning device provided by the embodiment can realize the small size when the diameters of the impellers are the same, and is beneficial to realizing flattening; under the same volume, air-blower impeller diameter can be bigger than traditional spiral case formula fan, realizes bigger blast capacity to the air conditioning equipment that this embodiment provided can realize the air-out efficient under the same volume.
In addition, the diameter of the centrifugal impeller of the blower 20 can be made larger than that of the traditional volute type centrifugal fan impeller, and the maximum diameter of the centrifugal impeller of the blower 20 can be as high as or as wide as that of the heat exchanger for refrigeration; the larger the diameter of the centrifugal impeller is, the larger the air volume of the blower 20 is, and the larger the diameter of the impeller is, the smaller the equivalent air volume rotating speed is realized, so that the air conditioning device can realize the larger air volume and the better NVH (namely three standards of Noise, Vibration and Harshness) level than the traditional air conditioner.
As shown in fig. 1 to 4, the casing 10 includes an air intake casing 11, a middle casing 12 and an air distribution casing 13, which are sequentially connected, the air intake casing 11 is provided with a total air intake 50, and the air distribution casing 13 is provided with a total air outlet 60. The heating heat exchanger 40 may be disposed in the intake case 11, and the blower fan 20 and the heating heat exchanger 40 may be disposed in the intermediate case 12.
On the basis of the above embodiments, the axial direction of the blower may be arranged to intersect the thickness direction of the cooling heat exchanger, or the axial direction of the blower may be arranged to intersect the thickness direction of the heating heat exchanger.
Alternatively, at least one of the thickness direction of the cooling heat exchanger 30 and the thickness direction of the heating heat exchanger is in the same direction as the axial direction of the blower 20. In this embodiment, the axial direction of the blower 20 and at least one of the thickness direction of the cooling heat exchanger 30 and the thickness direction of the heating heat exchanger 40 are arranged in the same direction, so that the flat structure of the air conditioning apparatus can be realized, the structure of the air conditioning apparatus is more compact, and the occupied space is small.
It should be noted that the thickness direction of the refrigeration heat exchanger 30 is an air inlet direction of the refrigeration heat exchanger 30, the thickness direction of the heating heat exchanger 40 is an air inlet direction of the heating heat exchanger 40, and the air inlet direction of the blower is in the same direction as the axial direction of the blower 20. At least one of the thickness direction of the cooling heat exchanger 30 and the thickness direction of the heating heat exchanger is in the same direction as the axial direction of the blower 20: the axial direction of the blower 20 and the thickness direction of the refrigeration heat exchanger 30 may be in the same direction, that is, the air inlet direction of the blower 20 and the air inlet direction of the refrigeration heat exchanger 30 are in the same direction; the axial direction of the blower 20 and the thickness direction of the heating heat exchanger 40 may be in the same direction, that is, the air inlet direction of the blower 20 and the air inlet direction of the heating heat exchanger 40 are in the same direction; optionally, the axial direction of the blower 20 is in the same direction as the thickness direction of the cooling heat exchanger 30, and is also in the same direction as the thickness direction of the heating heat exchanger 40, that is, the air inlet direction of the cooling heat exchanger 30, the air inlet direction of the blower 20, and the air inlet direction of the heating heat exchanger 40 are in the same direction.
The number of the heating heat exchangers 40 may be one, two, three, or four, and so on.
As an alternative, the cooling heat exchanger 30 is disposed in the air intake case 11, and both the blower fan 20 and the heating heat exchanger 40 are connected to the middle case 12; the main intake 50 is located on the side of the refrigeration heat exchanger 30 remote from the blower 20.
In this embodiment, the blower 20 and the heating heat exchanger 40 are integrated in the middle housing 12, and heat generated by the motor of the blower 20 during the operation process can exchange heat with the gas in the middle housing 12, and can heat the gas under the combined action of the blower 20 and the heating heat exchanger 40, so that the waste heat of the motor of the blower 20 is utilized, and the energy consumption is reduced. Different air inlet structures and air distribution structures can be configured, and the practicability of the air conditioning device is improved.
The main intake opening 50 of the casing 10 is communicated with the air inside or outside the vehicle by adjusting an inside-outside air switching damper (not shown). When the refrigerating heat exchanger works, the air coming out of the air outlet surface of the refrigerating heat exchanger is cold air, so that the air is sucked by the air blower 20; when the heat exchanger for refrigeration stops heat exchange, the air coming out from the air outlet surface of the heat exchanger for refrigeration is the ambient air inside or outside the vehicle, so that the air blower 20 sucks the ambient air.
As shown in fig. 1 to 4, based on the above embodiment, further, the air inlet of the blower 20 is located in the axial direction of the blower 20 and faces the refrigeration heat exchanger 30, and the air outlet of the blower 20 is located in the radial direction of the blower 20; the middle shell 12 is provided with a flow guiding structure, the flow guiding structure is located at an air outlet of the air blower 20, and the flow guiding structure is used for guiding the air flowing out from the air outlet of the air blower 20 to the direction of the air blower 20 far away from the refrigeration heat exchanger 30.
In this embodiment, the gas is thrown out to the inner wall of the middle housing 12 by the impeller blades of the blower 20, a flow guiding structure is disposed at the position of the air outlet of the middle housing 12 and the blower 20, the flow guiding structure can guide the gas from the air outlet of the blower 20 to the direction of the blower 20 away from the refrigeration heat exchanger 30, and the flow guiding structure enables the gas to flow to the rear of the blower 20, thereby facilitating the gas to flow to the air distribution housing 13.
The structure form of the flow guide structure can be various, for example: the flow guiding structure is an air guiding pipe, one end of the air guiding pipe is provided with an inlet, and the other end of the air guiding pipe extends to the direction close to the heating heat exchanger 40.
As an alternative, the flow guiding structure is a flow guiding rib 70; the end of the air guiding rib 70 close to the air inlet of the blower 20 is disposed close to the blower 20 compared to the end of the air guiding rib 70 far from the air inlet of the blower 20. That is, one end of the flow guiding rib 70 close to the air inlet of the blower 20 is disposed close to the blower 20, and one end of the flow guiding rib far from the air inlet of the blower is disposed far from the blower, but it can also be understood that the flow guiding rib 70 is disposed obliquely, and in the radial direction of the blower 20, one end of the flow guiding rib 70 close to the cooling heat exchanger 30 is disposed lower than one end of the flow guiding member close to the heating heat exchanger 40, and the flow guiding rib 70 blocks the gas from flowing toward the cooling heat exchanger 30, thereby guiding the gas toward the heating heat exchanger 40. The flow guide structure with the structure is simple and easy to process.
Wherein, the water conservancy diversion muscle 70 can be the setting of straight plate, and optionally, the water conservancy diversion muscle 70 is the setting of arc.
The flow guiding ribs 70 may be fixed to the middle housing 12 by welding, clamping or screwing.
Optionally, the flow guiding rib 70 and the middle housing 12 are integrally formed, that is, openings are formed at two ends of the middle housing 12, wherein the first opening is communicated with the air inlet housing 11, the second opening is communicated with the air distribution housing 13, and the flow guiding rib 70 is formed at the first opening of the middle housing 12. The first opening of the intermediate housing 12 is optionally arranged in the shape of a circular ring to be adapted to the air inlet of the blower 20.
As shown in fig. 5, in addition to the above-described embodiment, one side of the heating heat exchanger is disposed in contact with the inner wall of the intermediate casing and the other side of the heating heat exchanger is disposed in contact with the inner wall of the casing in the height direction of the heating heat exchanger. In this embodiment, all the air from the blower passes through the heating heat exchanger and then enters the air distribution casing.
As shown in fig. 1 to 5, the air conditioner further includes a diversion damper 80, and the diversion damper 80 is rotatably connected to the heating heat exchanger 40; a cold air channel 90 is formed among the diversion air door 80, the inner wall of the middle shell 12 and the heating heat exchanger 40, and the cold air channel 90 is communicated with the air distribution shell 13; the guide damper 80 and the back of the blower form a hot air path 100, and the hot air path 100 is communicated with the heating heat exchanger 40.
In this embodiment, when the refrigeration heat exchanger 30 does not need to work with the heating heat exchanger 40, the diversion damper 80 can be rotated to abut against the back surface of the blower 20 (i.e., a flange of the blower 20), the position of the diversion damper 80 at this time can be defined as a cold air position 110, the cold air channel 90 is completely opened, the hot air channel 100 is closed, and the air from the blower 20 can directly enter the air distribution housing 13 at the rear section through the cold air channel 90 and then is discharged through the main air outlet 60; when the refrigeration heat exchanger 30 does not work and the heating heat exchanger 40 works, the diversion damper 80 can be rotated to abut against the inner wall of the middle shell 12, the position of the diversion damper 80 at the moment can be defined as a hot air position 120, the hot air channel 100 is completely opened at the moment, the cold air channel 90 is closed, and the air from the air blower 20 can enter the heating heat exchanger 40 from the hot air channel 100, so that the air heating is completed; when the diversion air door 80 is located between the warm air positions with the cold air as the sum, the cold air passage 90 and the hot air passage 100 are both opened, part of the cold air from the air blower 20 enters the air distribution shell 13 through the cold air passage 90, the other part of the cold air enters the heating heat exchanger 40 through the hot air passage 100, the hot air from the heating heat exchanger 40 also enters the air distribution box, and the cold air and the hot air are mixed in the air distribution shell and then discharged from the main air outlet 60.
As shown in fig. 1 and 2, in the height direction of the heating heat exchanger 40, a space is provided between one side of the heating heat exchanger 40 and the inner wall of the intermediate casing 12, and the other side of the heating heat exchanger 40 is provided in contact with the inner wall of the casing. In this embodiment, the air guiding ribs 70 and the air guiding damper 80 may be provided only on the upper portion of the middle housing 12.
As shown in fig. 3 and 4, in the height direction of the heating heat exchanger 40, a space is provided between one side of the heating heat exchanger 40 and the inner wall of the intermediate casing 12, and a space is provided between the other side of the heating heat exchanger 40 and the inner wall of the casing. In this embodiment, the flow guiding ribs 70 and the flow guiding damper 80 are disposed on both the upper and lower portions of the middle housing 12.
As an alternative, as shown in fig. 6 to 19, the casing includes an air inlet casing 11, a middle casing 12 and an air distribution casing 13 which are sequentially communicated, the air inlet casing 11 is provided with a main air inlet 50, and the air distribution casing is provided with a main air outlet 60; the air blower is arranged in the air inlet shell, and the heating heat exchanger and the refrigerating heat exchanger are arranged in the middle shell; the blower is an axial-radial flow blower, the axial-radial flow blower further comprises a blower shell 21, and the blower shell 21 comprises a blower front shell 211 and a blower rear shell 212 which are connected with each other; an air inlet 213 parallel to or coincident with the axis of the centrifugal impeller is arranged on the front fan shell 211, and an air outlet 214 parallel to or coincident with the axis of the centrifugal impeller is arranged on the rear fan shell 212; the blower front shell 211 and the blower rear shell 212 are arranged oppositely, a mounting cavity is formed between the blower front shell and the blower rear shell, and the motor and the centrifugal impeller are mounted in the mounting cavity.
In this embodiment, the blower is an axial-radial blower, the motor 23 rotates to drive the centrifugal impeller 20 to rotate, the gas enters the centrifugal impeller 22 from the air inlet 213, the blades of the centrifugal impeller 20 radially throw the gas out of the centrifugal impeller 20 into the blower housing 21, the gas is blocked by the inner wall of the blower housing 210 and is discharged from the air outlet 214, so that axial air inlet and axial air outlet are realized, and the gas flows axially and radially.
The axial-radial flow blower in the embodiment can realize axial air inlet and axial air outlet, and compared with axial air inlet and radial air outlet, the blower provided by the embodiment can improve the pneumatic efficiency, so that the air outlet efficiency of the air conditioning device is high; and the axial-radial flow air-blower that this embodiment provided can the axial air-out, then can avoid setting up water conservancy diversion structure in the shell to can make air conditioning equipment's simple structure, spare part is few, thereby makes occupation space few, makes overall structure compact. Although the axial-radial flow blower comprises the blower shell arranged outside the centrifugal impeller, the blower shell has the functions of changing the gas flow direction and guiding the gas flow, the structure which is the same as that of the shell of the volute blower is not needed, and the volume of the axial-radial flow blower is still much smaller than that of the volute blower.
Optionally, the windward side of the cooling heat exchanger and the windward side of the heating heat exchanger are both intersected with the axial direction of the axial-radial flow blower, for example: and is vertical.
As shown in fig. 6, in addition to the above embodiment, the side wall of the cooling heat exchanger is in contact with the inner wall of the intermediate casing, and the side wall of the heating heat exchanger is in contact with the inner wall of the intermediate casing.
In this embodiment, axial and radial flow blower can realize axial air-out, and then can set up the lateral wall of refrigeration heat exchanger and the lateral wall of heating heat exchanger and the inner wall contact setting of middle casing, also can understand that the zero interval sets up (zero interval is not absolute, can not get rid of installation error), can make air conditioner's structure compacter like this, and the volume is littleer.
As shown in fig. 6, based on the above embodiment, further, the air conditioning device further includes an air filter 150, the air filter 150 is disposed on a side of the axial-radial flow blower away from the main air inlet; the side wall of the air filter 150 is in contact with the inner wall of the middle case. In this embodiment, the air filter is disposed behind the axial-radial flow blower and in front of the heating heat exchanger and the cooling heat exchanger, and the air filter can filter the gas entering the air conditioning device, so as to prevent impurities from affecting the following cooling heat exchanger and the heating heat exchanger.
As shown in fig. 11, in addition to the above embodiment, a plurality of despin blades 215 are further disposed at the air outlet 214, and the middle portions of the despin blades 215 are disposed in a convex manner (i.e., the middle portions of the despin blades are disposed in a convex manner compared with the end portions of the despin blades); the plurality of despin blades 215 are arranged at intervals along the circumferential direction of the air outlet 214, and the arrangement direction of the plurality of despin blades 215 is the same as the rotation direction of the centrifugal impeller 20, it can be understood that when the rotation direction of the centrifugal impeller 20 is clockwise, the plurality of despin blades 215 are arranged at intervals along the clockwise direction (the middle parts of the plurality of despin blades 215 are all convex towards the counterclockwise direction), and when the rotation direction of the centrifugal impeller 20 is counterclockwise, the plurality of despin blades 215 are arranged at intervals along the counterclockwise direction (the middle parts of the plurality of despin blades 215 are all convex towards the clockwise direction).
In this embodiment, the plurality of despin blades 215 are disposed at the air outlet 214, and the direction of the plurality of despin blades 215 is the same as the rotation direction of the centrifugal impeller 20, so that on one hand, the air is guided to reduce the rotation speed and reduce the energy loss, and on the other hand, the air can flow more uniformly, thereby improving the pneumatic efficiency and increasing the uniformity of the air outlet of the air. As shown in fig. 8, for the effect sketch map that simulates is carried out to the air-blower that this embodiment provided, can see that the gas that is got rid of the edge by centrifugal impeller can flow to the middle part of air-blower under the effect of despin blade, and despin blade can avoid gas to scatter in disorder at the edge of air outlet with the wind direction middle part guide of edge to improve pneumatic efficiency and improve the air-out homogeneity.
Wherein the despin blade 215 may include sequentially connected blade segments, a corner is formed between two adjacent blade segments, and a plurality of blade segments are sequentially connected to form the arched despin blade 215.
As an alternative, as shown in fig. 11, the despin blade 215 is disposed in an arc shape, that is, the surface of the despin blade 215 is smooth and has no corners and is streamline, and the fluid resistance of the despin blade 215 is small, which is more beneficial to guiding wind, reducing the rotation speed, reducing the energy loss, and making the wind flow more uniformly.
The number of the despun blades 215 can be set according to specific needs, for example, the number of the despun blades 215 is 9-27 (for example, 9, 10, 13, 16, 18, 20, 22, 25 or 27, etc.) pieces.
As shown in fig. 11, based on the above embodiment, further, the inlet angle β of the despinner blade 215 is 55 ° to 67 ° (e.g., 55 °, 57 °, 60 °, 61 °, 63 °, 65 °, or 67 °, etc.), the outlet angle θ of the despinner blade 215 is 90 ° to 93 ° (e.g., 90 °, 90.5 °, 91 °, 91.5 °, 92 °, 92.5 °, or 93 °, etc.), the inlet angle β of the despinner blade 215 is 55 ° to 67 °, and the outlet angle θ thereof is 90 ° to 93 °, which is more beneficial to improving the start-up efficiency and improving the outlet uniformity of the gas.
As shown in fig. 11, based on the above embodiment, further, the air outlet 214 is disposed in a ring shape, and the air outlet 214 is disposed at the edge of the rear casing 212 of the blower. In this embodiment, the air outlet 214 is disposed at the edge of the rear casing 212 of the blower, so that the air outlet can be disposed closer to the peripheral side of the centrifugal impeller 20, thereby improving the air outlet efficiency.
One end of the despin blade 215 may be fixed to one side of the air outlet 214, and the other end of the despin blade 215 is fixed to the other side of the air outlet 214.
Alternatively, as shown in fig. 11, based on the above embodiment, further, one end of the despin blade 215 is fixed to the rear fan housing 212 at a position close to the center of the rear fan housing 212, and the other end of the despin blade 215 passes through the air outlet 214 to be fixed to the rear fan housing 212. The fixing mode of the despin blade 215 in this embodiment is convenient for the integral forming of the rear housing 212 of the blower, thereby improving the production efficiency.
As shown in fig. 7 and 8, in particular, the mounting cavity includes an impeller mounting cavity and a motor mounting cavity 2122; the blower rear housing 212 includes an outer cover 2121 and a mounting groove disposed inside the outer cover 2121, the air outlet 214 is disposed on the outer cover 2121, and the mounting groove forms a motor mounting cavity 2122; the outer cover body 2121 is connected with the front fan housing 211, and an impeller installation cavity is formed between the inner wall of the outer cover body 2121 and the inner wall of the front fan housing 211; the inner wall of the impeller mounting cavity is used for forming a wind flow passage 24 with the impeller.
The air duct 40 includes an arc guiding portion 241, the arc guiding portion 241 protrudes towards a direction away from the centrifugal impeller 20, one side of the arc guiding portion 241 is close to the air inlet 213 and is disposed facing an air outlet side of the centrifugal impeller 20, and the other side of the arc guiding portion 241 is close to the air outlet 214.
In this embodiment, the arc guiding portion 241 surrounds the side portion of the centrifugal impeller 20, the middle portion of the arc guiding portion 241 is far away from the centrifugal impeller 20, and the two sides of the arc guiding portion 241 are close to the centrifugal impeller 20, so that the air duct 40 is disposed at the side portion of the centrifugal impeller 20 in a turning manner, thereby forming a labyrinth structure, when the air is radially thrown out of the centrifugal impeller 20, the air reaches one side of the arc guiding portion 241 (the side is disposed opposite to the air outlet side of the centrifugal impeller 20), and the side portion of the arc guiding portion 241 guides the air to the other side of the arc guiding portion 241, and then guides the air to the air outlet 214; the labyrinth structure formed by the arc flow guide part 241 can avoid gas backflow, so that the air outlet efficiency is improved.
Because the two sides of the arc flow channel part are close to the centrifugal impeller 20 than the middle part thereof, in order to realize that the motor 30 and the centrifugal impeller can be assembled in the installation cavity of the fan shell 210, at least the inner wall part of the fan front shell 211 close to the fan rear shell 212 is arc-shaped, and the inner wall part of the fan front shell 211 forms one half of the arc flow guide part 241, similarly, the inner wall part of the fan rear shell 212 close to the fan front shell 211 is arc-shaped, and the inner wall part of the rear shell forms one half of the arc flow guide part 241, after the fan front shell 211 and the fan rear shell 212 are connected, the inner wall part of the fan front shell 211 close to the fan rear shell 212 and the inner wall part of the fan rear shell 212 close to the fan front shell 211 are spliced to form the arc flow guide part 241.
The radius of the arc guiding part 241 may be set according to specific situations. Optionally, the arc radius of the arc guiding portion 241 is 10mm-40mm, for example: 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, or the like.
As shown in fig. 8, based on the above embodiment, further, the edge of the air inlet 213 is provided with a front accommodating groove 2111, the centrifugal impeller 20 is provided with a front connecting plate 221, and the front connecting plate 221 is inserted into the front accommodating groove 2111. In this embodiment, the air inlet side of the centrifugal impeller 20 extends out of the air inlet 213 of the front housing 211 of the blower, and the front connection board is inserted into the front accommodation groove 2111, so that the sealing performance between the centrifugal impeller 20 and the front housing 211 of the blower is improved, the gas leakage is reduced, and the air outlet efficiency of the gas is improved.
The cross-sectional shape of the front accommodating groove 2111 may be V-shaped or W-shaped, and the cross-sectional shape of the optional front accommodating groove 2111 is U-shaped, so that the structure is simple, and the processing and manufacturing are easy.
Optionally, the distance h1 between the top end of the front connection plate 221 and the bottom of the front containing slot 2111 is 4mm to 6mm (e.g., 4mm, 4.5mm, 5mm, 5.5mm, or 6mm), and the shortest distance h2 between the lateral portion of the front connection plate 221 and the lateral portion of the front containing slot 2111 is 4mm to 6mm (e.g., 4mm, 4.3mm, 4.6mm, 5mm, 5.4mm, 5.8mm, or 6 mm).
As shown in fig. 8, in addition to the above-mentioned embodiment, further, the blower further includes an intermediate cover plate 216; the inner side of the outer cover body 2121 is provided with a groove (which can play a role in reducing weight and is convenient for forming the rear housing 212 of the fan), the middle cover plate 216 is connected with the outer cover body 2121 (for example, by welding, viscose connection, interference connection or welding and the like) so as to cover the groove (avoid the influence of air retention in the groove on air outlet), the middle cover plate 216 is provided with a connecting hole for passing through the motor 30, the edge of the connecting hole is provided with a rear containing groove 2161, the centrifugal impeller 20 is provided with a rear connecting plate 222, and the rear connecting plate 222 is inserted into the rear containing groove 2161.
In this embodiment, the rear side connection insertion plate is inserted into the rear accommodation groove 2161, so that the sealing performance between the centrifugal impeller 20 and the middle cover plate 216 is improved, and gas leakage is reduced, thereby further improving the air outlet efficiency of gas.
The cross section of the rear containing groove 2161 can be V-shaped or W-shaped, and the cross section of the optional rear containing groove 2161 is U-shaped, so that the structure is simple, and the processing and the manufacturing are easy.
Optionally, the distance h1 between the top end of the rear connecting plate 222 and the bottom of the rear containing groove 2161 is 4mm-6mm (e.g. 4mm, 4.5mm, 5mm, 5.5mm or 6mm), and the shortest distance h2 between the side of the rear connecting plate 222 and the side of the rear containing groove 2161 is 4mm-6mm (e.g. 4mm, 4.3mm, 4.6mm, 5mm, 5.4mm, 5.8mm or 6mm), so that on one hand, a better sealing effect can be achieved, and on the other hand, the volume of the rear containing groove 2161 can be prevented from being too large.
As shown in fig. 15 to 19, on the basis of the above embodiment, further, the centrifugal impeller includes a cover plate 223, a blade 224 and a hub 225 fixedly connected in sequence, wherein the blade 224 is located between the cover plate 223 and the hub 225 in the axial direction of the hub 225, the cover plate is provided with an opening for air circulation, the front connecting plate is arranged at the edge of the opening, and the rear connecting plate is arranged at the side of the hub far from the cover plate; the blades 224 are backward curved blades, and the blades 224 have a forward sweep. A shaft hole 226 for connecting a drive shaft is formed in the hub.
In the embodiment, the centrifugal impeller adopts the backward-bent blades twisted in space, after accelerated air enters the impeller, the attachment degree of the accelerated air and the blades 224 is higher, and the energy added to the air flow in the centrifugal impeller is mainly changed into pressure energy, so that the requirement of high efficiency is ensured; the swept forward portions 2241 of the blades 224 at the inlet facilitate reducing aerodynamic noise generated by the airflow after it strikes the centrifugal impeller.
Alternatively, the centrifugal impeller is an axial-radial flow type closed centrifugal impeller which guides the airflow to enter axially and flow out radially.
Optionally, the forward sweep inclination angle of the forward sweep part 2241 is gamma, and 81 DEG & lt gamma & lt 86 deg.
Alternatively, the forward sweep slope angle of the forward sweep 2241 is γ, and γ is 83 °.
Alternatively, the blade 224 has a blade exit angle α, and 60 ≦ β ≦ 70.
Alternatively, the blade exit angle of the blades 224 is α, and α is 65 °.
The blade has a tip 2242 and a root 2243, optionally the root 2243 of the blade 224 at the inlet has a radius RhThe radius of the blade tip 2242 at the inlet is RsAnd R is 0.35. ltoreq. Rh/RsLess than or equal to 0.4. The inlet in this embodiment refers to the inlet of the centrifugal impeller.
Optionally, the root 2243 of the inlet blade 224 has a radius RhThe radius of the blade tip 2242 at the inlet is RsAnd R ish/Rs=0.37。
Optionally, the included angle between the tangential direction of the blade tip profile of the blade 224 at the inlet and the rotation direction of the centrifugal impeller at the blade tip is α1And alpha is not more than 56 degrees1≤64°。
Optionally, the included angle between the tangential direction of the blade tip profile of the blade 224 at the inlet and the rotation direction of the centrifugal impeller at the blade tip is α1And α is1=62°。
Alternatively, the centrifugal impeller outlet width of the centrifugal impeller is b2, and b2 is calculated by equation (1), where equation (1) is:
b2=Q/(2π×R2×φ×u2) (1);
wherein R is2The radius of the centrifugal impeller outlet of the centrifugal impeller; u. of2Is the peripheral speed and phi is the flow coefficient at the outlet of the centrifugal impeller.
Alternatively, u2Calculated by formula (2), formula (2) is:
u2=2πR2n (2);
wherein n is the rotational speed of the centrifugal impeller.
Alternatively, 90mm ≦ R2Not more than 110mm and not more than 0.2 and not more than 0.3.
Optionally, the blades 224 at the inlet of the centrifugal impeller are of thickness δ1,0.8mm≤δ1≤1.5mm。
Optionally, the blades 224 at the inlet of the centrifugal impeller are of thickness δ1And δ1=1.1mm。
Optionally, the blades 224 at the outlet of the centrifugal impeller are of thickness δ2And 1.3mm is not more than delta2≤2.5mm。
Optionally, the blades 224 at the outlet of the centrifugal impeller are of thickness δ2And δ2=1.9mm。
Alternatively, the number of blades 224 is 19 or 23; the root radius of the blade 224 at the inlet is 28.8 mm; the tip radius of the blade 224 at the inlet is 72 mm; the blade angle at the tip of the blade 224 at the inlet is 62 degrees, and the blade angle at the root of the blade 224 at the inlet is 37 degrees; the width of the outlet of the centrifugal impeller is 25mm, the blade angle of the outlet of the centrifugal impeller is 65 degrees, and the radius of the outlet of the centrifugal impeller is 92.1 mm; the axial length of the centrifugal impeller is 40.2 mm.
The embodiment of the invention can achieve the required target air volume through the smaller axial size of the centrifugal impeller, simultaneously ensures that the flow field in the centrifugal impeller is more stable under the operating condition, improves the overall efficiency of the automobile air-conditioning blower, and reduces the noise of the automobile air-conditioning assembly.
The specific principle is as follows:
the sweepforward blade structure ensures that the air flow enters the centrifugal impeller more uniformly and stably before the incoming air enters the centrifugal impeller; because the blades are backward bent blades with twisted space, the air flow in the flow channel of the centrifugal impeller is enabled to be attached to the blades; when the airflow flows to the outlet of the centrifugal impeller, the stability of the flow field at the outlet of the centrifugal impeller is improved due to the backward bending structure of the blades. And the turning loss of the air flow in the backward-bent centrifugal impeller is relatively small, and the efficiency of the whole centrifugal impeller is improved.
It should be noted that, in order to realize the normal operation of the blower, the blower may further include a PCB board.
On the basis of any of the above embodiments, as shown in fig. 1 to 6, the total air outlet 60 may include a plurality of mode air outlets, and the mode air doors 130 are disposed in the plurality of mode air outlets, so as to control the air outlet amount.
On the basis of any of the above embodiments, as shown in fig. 1 to 6, the air intake casing 11, the middle casing 12 and the air distribution casing 13 are arranged independently from each other, one side of the middle casing 12 is connected with the air intake casing 11 in a sealing manner, and the other side of the middle casing 12 is connected with the air distribution casing 13 in a sealing manner. In this embodiment, the air inlet housing 11, the middle housing 12 and the air distribution housing 13 are independent from each other, so that the internal structure of the air conditioner is conveniently maintained or repaired, and the air conditioner can be replaced by the three housings. The rib groove sealing structure 140 may be used to connect the middle casing 12 with the air intake casing 11, and the rib groove sealing structure 140 may be used to connect the middle casing 12 with the air distribution casing 13.
Or, the air inlet housing 11, the middle housing 12 and the air distribution housing 13 are integrally formed, that is, the casing 10 is integrally formed, and the strength is high.
In the embodiment of the present invention, "front" refers to an upstream of the whole direction from the wind inlet 213 to the wind outlet 214, and "rear" refers to a downstream of the whole direction from the wind inlet 213 to the wind outlet 214.
The embodiment of the invention also provides an automobile which comprises an automobile body and the air conditioning device, wherein the air conditioning device is arranged in the automobile body.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description. Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments.

Claims (13)

1. An air conditioning apparatus, comprising: the air conditioner comprises a shell, and a blower, a refrigerating heat exchanger and a heating heat exchanger which are arranged in the shell; the blower comprises a motor and a centrifugal impeller in transmission connection with the motor, and the motor drives the centrifugal impeller to rotate so that gas enters the centrifugal impeller from the axial direction of the centrifugal impeller and is discharged out of the centrifugal impeller from the radial direction of the centrifugal impeller.
2. The air conditioning device according to claim 1, wherein the casing comprises an air intake casing, an intermediate casing and an air distribution casing which are communicated in sequence; the refrigerating heat exchanger is arranged in the air inlet shell, and the air blower and the heating heat exchanger are both connected with the middle shell; the air inlet shell is provided with a main air inlet, and the main air inlet is positioned on one side of the refrigeration heat exchanger, which is far away from the air blower; the air distribution shell is provided with a main air outlet.
3. An air conditioning apparatus according to claim 2, wherein the air inlet of the blower is located in an axial direction of the blower and faces the refrigeration heat exchanger, and the air outlet of the blower is located in a radial direction of the blower; the middle shell is provided with a flow guide structure, the flow guide structure is positioned at an air outlet of the air blower and used for guiding gas flowing out of an air outlet of the air blower to the direction of the air blower, which is far away from the refrigeration heat exchanger.
4. An air conditioning unit according to claim 3, wherein the air guide structure is an air guide rib; the air blower is characterized in that one end, close to the air inlet of the air blower, of the flow guide rib is close to the air blower, and one end, far away from the air inlet of the air blower, of the flow guide rib is far away from the air blower.
5. An air conditioning apparatus according to any one of claims 2 to 4, wherein one side of the heating heat exchanger is disposed in abutment with an inner wall of the intermediate casing and the other side of the heating heat exchanger is disposed in abutment with an inner wall of the casing in a height direction of the heating heat exchanger.
6. An air conditioning apparatus according to any one of claims 2 to 4, wherein a space is provided between one side of the heating heat exchanger and an inner wall of the intermediate casing in a height direction of the heating heat exchanger, and the other side of the heating heat exchanger is provided in abutment with the inner wall of the casing; or, in the height direction of the heating heat exchanger, a gap is formed between one side of the heating heat exchanger and the inner wall of the middle shell, and a gap is formed between the other side of the heating heat exchanger and the inner wall of the shell.
7. The air conditioning unit of claim 6, further comprising a diversion damper rotatably connected to the heating heat exchanger; a cold air channel is formed among the diversion air door, the inner wall of the middle shell and the heating heat exchanger and is communicated with the air distribution shell; and a hot air channel is formed between the flow guide air door and the back surface of the air blower and is communicated with the heating heat exchanger.
8. The air conditioning device according to claim 1, wherein the casing comprises an air inlet casing, an intermediate casing and an air distribution casing which are sequentially communicated, wherein the air inlet casing is provided with a main air inlet, and the air distribution casing is provided with a main air outlet; the air blower is arranged in the air inlet shell, and the heating heat exchanger and the refrigerating heat exchanger are arranged in the middle shell;
the fan is an axial-radial flow fan, the axial-radial flow fan further comprises a fan shell, and the fan shell comprises a fan front shell and a fan rear shell which are connected with each other; an air inlet parallel to or coincident with the axis of the centrifugal impeller is formed in the front fan shell, and an air outlet parallel to or coincident with the axis of the centrifugal impeller is formed in the rear fan shell; the fan procapsid with casing sets up relatively behind the fan, the fan procapsid with form the installation cavity behind the fan between the casing, the motor with centrifugal impeller installs in the installation cavity.
9. An air conditioning unit according to claim 8, wherein the side wall of the cooling heat exchanger is in contact with the inner wall of the intermediate casing, and the side wall of the heating heat exchanger is in contact with the inner wall of the intermediate casing.
10. The air conditioning unit of claim 9, further comprising an air filter disposed on a side of the axial-radial blower remote from the main intake; the side wall of the air filter is in contact with the inner wall of the middle housing.
11. An air conditioning device as claimed in claim 8, wherein the air outlet is provided with a plurality of despin blades, and the central parts of the despin blades are arranged convexly; the plurality of despin blades are arranged at intervals along the circumferential direction of the air outlet, and the arrangement direction of the plurality of despin blades is the same as the rotation direction of the centrifugal impeller.
12. An air conditioning unit according to claim 11, wherein the inlet angle of the deswirler vane is 55 ° to 67 ° and the outlet angle of the deswirler vane is 90 ° to 93 °.
13. An automobile, characterized by comprising a vehicle body and an air conditioning device according to any one of claims 1 to 12, the air conditioning device being provided in the vehicle body.
CN202110397459.XA 2021-04-13 2021-04-13 Air conditioning device and automobile Pending CN112918218A (en)

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