Air conditioning box assembly and vehicle having same

Abstract

The utility model discloses a kind of air conditioner box assembly and vehicle with it, it is related to vehicle technical field.Air conditioner box assembly includes: air conditioner box shell, blower shell, motor, air conditioner box shell is formed with drainage passage, the first inlet end of drainage passage is communicated with airflow passage in air conditioner box shell, blower shell is connected with air conditioner box shell, motor is located in blower shell, blower shell is formed with extension passage, the second inlet end of extension passage is communicated with the first outlet end of drainage passage, the second outlet end of extension passage is towards motor. Thus, by making air conditioner box shell form drainage passage, and make blower shell form extension passage, gas in airflow passage in air conditioner box shell can be introduced into drainage passage by first inlet end, and make airflow flow to motor by extension passage, to cool motor, so as to reduce motor overheating risk, reduce insulation aging, speed drop, shutdown risk, improve motor operation stability.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to an air conditioning unit assembly and a vehicle having the same. Background Technology

[0002] In related technologies, commercial vehicle air conditioning boxes need to be matched with high-power blowers to meet air supply requirements. High-power blower motors generate a lot of heat. However, the current commercial vehicle air conditioning boxes have insufficient cooling efficiency for blower motors, which can easily lead to motor overheating, insulation aging, speed reduction, and even shutdown risk, seriously affecting the operational stability of commercial vehicle air conditioning boxes. Utility Model Content

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, one objective of the present invention is to provide an air conditioning unit assembly that can introduce gas in the airflow channel inside the air conditioning unit housing into the diversion channel through the first inlet end, and allow the airflow to flow to the motor through the extension channel to cool the motor.

[0004] This utility model further proposes a vehicle having the above-mentioned air conditioning unit assembly.

[0005] An air conditioning unit assembly according to an embodiment of the present utility model includes: an air conditioning unit housing, wherein the air conditioning unit housing forms a flow channel, and the first inlet end of the flow channel is connected to an airflow channel inside the air conditioning unit housing; a blower housing and a motor, wherein the blower housing is connected to the air conditioning unit housing, the motor is disposed in the blower housing, the blower housing forms an extension channel, the second inlet end of the extension channel is connected to the first outlet end of the flow channel, and the second outlet end of the extension channel faces the motor.

[0006] According to the embodiment of the present utility model, the air conditioning unit assembly has a flow channel formed in the air conditioning unit housing and an extension channel formed in the blower housing. This allows the gas in the airflow channel inside the air conditioning unit housing to be introduced into the flow channel through the first inlet end, and the airflow to flow to the motor through the extension channel to cool the motor. This reduces the risk of motor overheating, reduces the risk of insulation aging, speed reduction, and shutdown, and improves the stability of motor operation.

[0007] According to some embodiments of this application, the drainage channel extends along a first direction, and the extended channel includes: a first sub-channel and a second sub-channel, the first sub-channel connecting the drainage channel and the second sub-channel, the first sub-channel extending along the first direction, the second sub-channel extending along a second direction, and the first direction intersecting the second direction.

[0008] According to some embodiments of this application, the cross-sectional area of ​​the drainage channel is A, which satisfies the relationship: 300mm²≤A≤350mm².

[0009] According to some embodiments of this application, at least a portion of the cross-sectional area of ​​the first outlet end gradually increases along the gas flow direction.

[0010] According to some embodiments of this application, one of the first outlet end and the second inlet end is formed with a mating groove, and a portion of the other of the first outlet end and the second inlet end is embedded in the mating groove.

[0011] According to some embodiments of this application, the extended channel includes: a first sub-channel and a second sub-channel. The first sub-channel connects the drainage channel and the second sub-channel. Along the extension direction of the drainage channel, the second sub-channel, away from the top wall of the drainage channel, includes: a first sub-top wall, a second sub-top wall, and a third sub-top wall. The second sub-top wall connects the first sub-top wall and the third sub-top wall. Along the extension direction of the drainage channel, the first sub-top wall and the third sub-top wall are offset.

[0012] According to some embodiments of this application, the included angle between the inner wall surface of the first sub-top wall and the inner wall surface of the second sub-top wall is α, which satisfies the relationship: 50°≤α≤80°.

[0013] According to some embodiments of this application, the cross-sectional structure of the drainage channel is partially circular.

[0014] According to some embodiments of this application, the axial direction of the first inlet end intersects with the first direction.

[0015] The vehicle according to the embodiments of this application includes the above-described air conditioning unit assembly. By forming a flow channel in the air conditioning unit housing and an extension channel in the blower housing, gas in the airflow channel inside the air conditioning unit housing can be introduced into the flow channel through the first inlet end, and the airflow can flow to the motor through the extension channel to cool the motor. This reduces the risk of motor overheating, reduces the risk of insulation aging, speed reduction, and shutdown, and improves the stability of motor operation.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1This is a schematic diagram of an air conditioning unit assembly according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of an air conditioning unit assembly according to an embodiment of the present utility model (part of the air conditioning unit housing is omitted). Figure 3 This is a cross-sectional schematic diagram of the blower housing according to an embodiment of the present utility model; Figure 4 This is a cross-sectional schematic diagram of the air conditioning unit assembly according to an embodiment of the present utility model (used to show the first inlet end); Figure 5 This is a cross-sectional schematic diagram of the drainage channel and the extension channel according to an embodiment of the present utility model; Figure 6 This is another cross-sectional schematic diagram of the drainage channel and the extension channel according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of the blower housing structure according to an embodiment of the present utility model.

[0018] Figure label: Air conditioning unit housing 1; airflow channel 11; first inlet end 12; first outlet end 13; airflow channel 14; Blower housing 2; extension channel 21; second inlet end 22; second outlet end 23; first sub-channel 24; second sub-channel 25; first sub-top wall 251; second sub-top wall 252; third sub-top wall 253; mating groove 26; Motor 3; Speed ​​control module 4; Air conditioning unit assembly 10. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] The following is for reference. Figures 1-7 The present invention describes an air conditioning unit assembly 10 according to an embodiment of the present invention and a vehicle having the same.

[0021] like Figures 1-3 As shown, the air conditioning unit assembly 10 according to an embodiment of the present utility model includes: an air conditioning unit housing 1, a blower housing 2, and a motor 3.

[0022] Among them, such as Figure 2 and Figure 3As shown, the air conditioning housing 1 has an airflow channel 11, which can be integrally formed into the air conditioning housing 1. The air conditioning housing 1 can also have an airflow channel 14, which can serve as part of the external circulation channel and internal circulation channel of the air conditioning assembly 10. For example, when the vehicle is in external circulation mode, outside air can flow into the airflow channel 14 and flow into the vehicle through the airflow channel 14. When the vehicle is in internal circulation mode, inside air can flow into the airflow channel 14 and flow into the vehicle through the airflow channel 14.

[0023] The first inlet end 12 of the drainage channel 11 is connected to the airflow channel 14 inside the air conditioning housing 1, so that the airflow in the airflow channel 14 can flow into the drainage channel 11 through the first inlet end 12. The blower housing 2 is connected to the air conditioning housing 1. As some embodiments of this application, the blower housing 2 and the air conditioning housing 1 can be connected by means of, but not limited to, bolts, snap-fits, etc. The blower housing 2 has an extension channel 21, and the second inlet end 22 of the extension channel 21 is connected to the first outlet end 13 of the drainage channel 11.

[0024] like Figure 3 and Figure 4 As shown, the motor 3 is mounted on the blower housing 2. In some embodiments of this application, the motor 3 can be welded to the blower housing 2, bolted, or otherwise connected. When the blower is working, the low-temperature gas in the evaporator of the air conditioning unit can flow sequentially into the airflow channel 14, the first inlet end 12 of the guide channel 11, the first outlet end 13 of the guide channel 11, the second inlet end 22 of the extension channel 21, and the second outlet end 23 of the extension channel 21. The second outlet end 23 of the extension channel 21 faces the motor 3, and the low-temperature gas can be blown from the second outlet end 23 towards the motor 3. The low-temperature gas can exchange heat with the motor 3, and the heat of the motor 3 can be carried away by forced convection to cool the motor 3, thereby reducing the risk of overheating of the motor 3 and improving the operating stability of the motor 3. In other words, the air intake channel 11 and the extension channel 21 can be constructed together as a cooling channel. The cooling channel can guide a portion of the low-temperature gas in the airflow channel 14 to the motor 3 to cool the motor 3. Moreover, both the air intake channel 11 and the extension channel 21 are internal channels of the air conditioning box assembly 10, which will not increase the outer contour of the air conditioning box assembly 10 and can be adapted to the compact installation space of vehicles (especially commercial vehicles).

[0025] In the above embodiments, by forming a flow channel 11 in the air conditioning housing 1 and an extension channel 21 in the blower housing 2, the gas in the airflow channel 14 in the air conditioning housing 1 can be introduced into the flow channel 11 through the first inlet end 12, and the airflow can flow to the motor 3 through the extension channel 21 to cool the motor 3. This reduces the risk of overheating of the motor 3, reduces the risk of insulation aging, speed reduction, and shutdown, and improves the operational stability of the motor 3.

[0026] As some embodiments of this application, the air conditioning unit housing 1 may be made of polypropylene + 20% glass fiber to improve the high temperature resistance of the air conditioning unit housing 1.

[0027] As some embodiments of this application, the blower housing 2 may be made of polypropylene + 20% glass fiber to improve the high temperature resistance of the air conditioning unit housing 1.

[0028] In some embodiments of this application, such as Figure 3 and Figure 6 As shown, the flow channel 11 can extend along a first direction, and the extension channel 21 can include a first sub-channel 24 and a second sub-channel 25. The first sub-channel 24 connects the flow channel 11 and the second sub-channel 25, and the low-temperature gas in the flow channel 11 can flow through the first sub-channel 24 and the second sub-channel 25 in sequence. The first sub-channel 24 extends along the first direction, and the second sub-channel 25 extends along the second direction. The first direction and the second direction intersect, for example, the angle between the first direction and the second direction is an acute angle, an obtuse angle, or a right angle. This arrangement makes the extension directions of the flow channel 11 and the extension channel 21 reasonable and can conform to the structural layout of the air conditioning unit assembly 10. A cooling channel (the flow channel 11 and the extension channel 21 can be jointly constructed as a cooling channel) can be arranged in the compact space of the air conditioning unit assembly 10 to guide the flow direction of the low-temperature gas, so as to smoothly guide part of the low-temperature gas in the airflow channel 14 to the motor 3 side, thereby improving space utilization and saving layout space.

[0029] In some embodiments of this application, the cross-sectional area of ​​the airflow channel 11 is A, satisfying the relationship: 300mm²≤A≤350mm². That is, the cross-sectional area of ​​the airflow channel 11 can be any value between 300mm² and 350mm². For example, A can be 300mm², 325mm², 350mm², etc. It should be noted that if the cross-sectional area of ​​the airflow channel 11 is less than 300mm², the cooling airflow will be insufficient. If the cross-sectional area of ​​the airflow channel 11 is greater than 350mm², the airflow will impact the surface of the motor 3, forming turbulence and excessive noise. By making the cross-sectional area of ​​the airflow channel 11 any value between 300mm² and 350mm², not only can the cooling airflow meet the requirements, but the airflow can also be smooth, reducing the risk of noise caused by turbulence, improving the NVH performance of the vehicle, and adapting to the compact installation space of vehicles (especially commercial vehicles).

[0030] In some embodiments of this application, such as Figure 5 and Figure 6As shown, along the gas flow direction, at least part of the cross-sectional area of ​​the first outlet end 13 gradually increases to form a structure similar to a diffuser. As some embodiments of this application, the longitudinal section of the first outlet end 13 can be constructed as a trapezoid. This arrangement can reduce the risk of generating turbulence, so that the airflow can flow smoothly and convert the kinetic energy of the low-temperature gas into static pressure energy, which is beneficial to improving the cooling effect.

[0031] In some embodiments of this application, such as Figure 6 As shown, one of the first outlet end 13 and the second inlet end 22 has a mating groove 26, and a portion of the other of the first outlet end 13 and the second inlet end 22 is embedded in the mating groove 26. For example, the first outlet end 13 can have a mating groove 26, and a portion of the second inlet end 22 can be embedded in the mating groove 26, or the second inlet end 22 can have a mating groove 26, and a portion of the first outlet end 13 can be embedded in the mating groove 26. This arrangement facilitates the connection between the diversion channel 11 and the extension channel 2, and improves the sealing at the connection between the diversion channel 11 and the extension channel 21, thereby reducing airflow loss.

[0032] In some embodiments of this application, such as Figure 3 As shown, the extension channel 21 includes a first sub-channel 24 and a second sub-channel 25. The first sub-channel 24 is connected between the drainage channel 11 and the second sub-channel 25. The low-temperature gas in the drainage channel 11 can flow through the first sub-channel 24 and the second sub-channel 25 in sequence. Along the extension direction of the drainage channel 11 (i.e., the first direction), the second sub-channel 25, away from the top wall of the drainage channel 11, includes: a first sub-top wall 251, a second sub-top wall 252, and a third sub-top wall 253. The second sub-top wall 252 connects the first sub-top wall 251 and the third sub-top wall 253. The low-temperature gas flowing from the drainage channel 11 into the extension channel 21 can flow through the first sub-top wall 251, the second sub-top wall 252, and the third sub-top wall 253 in sequence. Along the extension direction of the drainage channel 11, the first sub-top wall 251 and the third sub-top wall 253 are staggered. This arrangement allows the extension channel 21 to have sufficient channel length without occupying too much space along the second direction, which is beneficial for making full use of the space inside the air conditioning unit assembly 10. In addition, this arrangement can reduce the energy of the airflow impacting the surface of the motor 3, thereby reducing noise.

[0033] In some embodiments of this application, such as Figure 3As shown, the angle between the inner wall surface of the first sub-top wall 251 and the inner wall surface of the second sub-top wall 252 is α, satisfying the relationship: 50°≤α≤80°. That is, the angle between the inner wall surface of the first sub-top wall 251 and the inner wall surface of the second sub-top wall 252 can be any value between 50° and 80°. For example, α can be 50°, 60°, or 80°. It should be noted that if the angle between the inner wall surface of the first sub-top wall 251 and the inner wall surface of the second sub-top wall 252 is less than 50°, it will lead to… If the extension channel 21 is too large in the second direction, it will be difficult to install. If the angle between the inner wall of the first sub-top wall 251 and the inner wall of the second sub-top wall 252 is greater than 80°, the risk of turbulence will be greatly increased. By making the angle between the inner wall of the first sub-top wall 251 and the inner wall of the second sub-top wall 252 any value between 50° and 80°, it is beneficial to make full use of the space inside the air conditioning unit assembly 10, reduce the installation difficulty, reduce the risk of turbulence, and improve the smoothness of airflow.

[0034] In some embodiments of this application, such as Figure 7 As shown, the cross-section of the flow channel 11 is partially circular. For example, the cross-section of the flow channel 11 can be constructed as a semi-circle, two-thirds of a circle, or three-quarters of a circle. This design can reduce airflow resistance, improve the smoothness of airflow, and reduce the risk of turbulence caused by airflow impacting the surface of the motor 3. Furthermore, this design facilitates manufacturing and molding, resulting in high structural strength and good stability.

[0035] In some embodiments of this application, such as Figure 1 As shown, the axial direction of the first inlet end 12 intersects with the first direction. By making the axial direction of the first inlet end 12 intersect with the first direction, it is beneficial for the gas in the airflow channel 14 to flow smoothly into the diversion channel 11 through the first inlet end 12, so that the amount of gas flowing to the motor 3 is sufficient, thereby improving the cooling effect on the motor 3. This setting can also improve the smoothness of airflow.

[0036] As some embodiments of this application, such as Figure 2 As shown, the air conditioning unit assembly 10 may further include a speed control module 4, which can be communicatively connected to the motor 3. Adjusting the output voltage of the speed control module 4 can change the air intake volume to regulate the cooling effect and improve targeted cooling capacity, thereby ensuring the reliability of the vehicle under complex operating conditions. As some embodiments of this application, the speed control module 4 is disposed in the air conditioning unit housing 1 and is located near the first inlet end 12, so that some of the cooling gas can exchange heat with the speed control module 4, reducing the risk of overheating of the speed control module 4.

[0037] The vehicle according to the embodiments of this application includes the air conditioning unit assembly 10 of the above embodiments. By forming a flow channel 11 in the air conditioning unit housing 1 and forming an extension channel 21 in the blower housing 2, gas in the airflow channel 14 in the air conditioning unit housing 1 can be introduced into the flow channel 11 through the first inlet end 12, and the airflow can flow to the motor 3 through the extension channel 21 to cool the motor 3. This reduces the risk of overheating of the motor 3, reduces the risk of insulation aging, speed drop, and shutdown, and improves the operational stability of the motor 3.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0040] In the description of this utility model, "multiple" means two or more.

[0041] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0042] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An air conditioning unit assembly (10), characterized in that, include: An air conditioning housing (1) has a drainage channel (11) formed therein, and the first inlet end (12) of the drainage channel (11) is connected to the airflow channel (14) inside the air conditioning housing (1). The blower housing (2) and the motor (3) are connected to the air conditioning unit housing (1). The motor (3) is located in the blower housing (2). The blower housing (2) forms an extension channel (21). The second inlet end (22) of the extension channel (21) is connected to the first outlet end (13) of the drainage channel (11). The second outlet end (23) of the extension channel (21) faces the motor (3).

2. The air conditioning unit assembly (10) according to claim 1, characterized in that, The drainage channel (11) extends along a first direction, and the extension channel (21) includes a first sub-channel (24) and a second sub-channel (25). The first sub-channel (24) connects the drainage channel (11) and the second sub-channel (25). The first sub-channel (24) extends along the first direction, and the second sub-channel (25) extends along a second direction. The first direction and the second direction intersect.

3. The air conditioning unit assembly (10) according to claim 1, characterized in that, The cross-sectional area of ​​the drainage channel (11) is A, which satisfies the relationship: 300mm²≤A≤350mm².

4. The air conditioning unit assembly (10) according to claim 1, characterized in that, Along the direction of gas flow, at least a portion of the cross-sectional area of ​​the first outlet end (13) gradually increases.

5. The air conditioning unit assembly (10) according to claim 1, characterized in that, One of the first outlet end (13) and the second inlet end (22) is formed with a mating groove (26), and a portion of the other of the first outlet end (13) and the second inlet end (22) is embedded in the mating groove (26).

6. The air conditioning unit assembly (10) according to claim 1, characterized in that, The extension channel (21) includes: a first sub-channel (24) and a second sub-channel (25). The first sub-channel (24) is connected between the drainage channel (11) and the second sub-channel (25) along the extension direction of the drainage channel (11). The second sub-channel (25) is away from the top wall of the drainage channel (11) and includes: a first sub-top wall (251), a second sub-top wall (252), and a third sub-top wall (253). The second sub-top wall (252) is connected between the first sub-top wall (251) and the third sub-top wall (253) along the extension direction of the drainage channel (11). The first sub-top wall (251) and the third sub-top wall (253) are offset.

7. The air conditioning unit assembly (10) according to claim 6, characterized in that, The angle between the inner wall surface of the first sub-top wall (251) and the inner wall surface of the second sub-top wall (252) is α, which satisfies the relationship: 50°≤α≤80°.

8. The air conditioning unit assembly (10) according to any one of claims 1-7, characterized in that, The cross-sectional structure of the drainage channel (11) is partially circular.

9. The air conditioning unit assembly (10) according to any one of claims 1-7, characterized in that, The axial direction of the first inlet end (12) intersects with the first direction.

10. A vehicle, characterized in that, Includes the air conditioning unit assembly (10) according to any one of claims 1-9.

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