Middle-mounted air conditioning cabinet and automobile HVAC system

Abstract

The utility model relates to the technical field of automobile air conditioners, in particular to a middle-mounted air handling unit and an automobile HVAC system. The central air conditioning box comprises a distribution box and an air inlet box, and the distribution box is connected with the air inlet box. The distribution box is provided with an upper-layer flow channel and a lower-layer flow channel; the air inlet box is provided with an air inlet located in the side, away from the distribution box, of the distribution box. And the upper-layer flow channel and the lower-layer flow channel are both communicated with the air inlet box. The centrally-mounted air conditioning box is applied to an automobile HVAC system, is simple in structure and small in structural size, and can realize a double-layer flow function in a smaller space, so that the occupied in-automobile space can be reduced, and optimization and modeling of the in-automobile space are facilitated; and meanwhile, the method can be universally used for left-rudder and right-rudder vehicle models, namely, the adaptation range is wide, the universality is good, and therefore the research and development and application cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive air conditioners, and more specifically, to a center-mounted air conditioner box and an automotive HVAC system. Background Art

[0002] HVAC (Heating, Ventilation, and Air Conditioning) is an important component for a vehicle to achieve refrigeration, heating, defrosting, demisting, and ventilation. Conventional structural forms include offset, center-mounted, and split types. However, the existing HVAC systems all have the following problems:

[0003] Offset type: Poor versatility, not applicable to both left-hand drive and right-hand drive vehicle models; Center-mounted type: Requires a large amount of interior space, which is not conducive to vehicle styling. The air inlet is arranged on one side, and it is not applicable to both left-hand drive and right-hand drive vehicle models; Split type: Since the air inlet box of the split type is arranged in the engine compartment, and the engine is arranged in the engine compartment of hybrid or fuel vehicles, there is no space to arrange the air inlet box. Therefore, it can only be used for pure electric vehicle models. Summary of the Utility Model

[0004] The objectives of the present utility model include, for example, providing a center-mounted air conditioner box and an automotive HVAC system, which have a simple structure and a small structural volume, can achieve a double-layer flow function in a smaller space, thereby reducing the occupied interior space and being conducive to the optimization and styling of the interior space; at the same time, it can be applicable to both left-hand drive and right-hand drive vehicle models, that is, it has a wide adaptation range and good versatility, thereby reducing the R & D and application costs.

[0005] The embodiments of the present utility model can be implemented as follows:

[0006] In a first aspect, the present utility model provides a center-mounted air conditioner box, which includes a distribution box and an air inlet box, and the distribution box is connected to the air inlet box;

[0007] The distribution box is configured with an upper flow channel and a lower flow channel; the air inlet box is configured with an air inlet, and the air inlet is located on a side of the distribution box away from the distribution box;

[0008] Wherein, both the upper flow channel and the lower flow channel are communicated with the air inlet box.

[0009] In an optional embodiment, the center-mounted air conditioner box further includes a fan unit disposed in the air inlet box, and the fan unit is used to guide the air flow in the air inlet box to be delivered to the upper flow channel and guide the air flow in the air inlet box to be delivered to the lower flow channel.

[0010] In an optional embodiment, the fan unit includes a dual-axis blower, and the dual-axis blower includes a blower housing, a first volute, a second volute, a drive motor, a first impeller, and a second impeller;

[0011] The blower housing, the first volute and the second volute are all connected to the air inlet box. The driving motor is connected to the blower housing and is located between the first volute and the second volute, and is in transmission connection with the first impeller rotatably arranged in the first volute and the second impeller rotatably arranged in the second volute.

[0012] Wherein, the air inlets of the first volute and the second volute are both communicated with the air inlet box. The air outlet of the first volute is communicated with the upper flow channel, and the air outlet of the second volute is communicated with the lower flow channel.

[0013] In an alternative embodiment, one side of the first volute facing away from the second volute is spaced from the inner wall of the air inlet box, and one side of the second volute facing away from the first volute is spaced from the inner wall of the air inlet box.

[0014] In an alternative embodiment, the air inlet box includes an air inlet chamber and a wind guiding chamber. The air inlet chamber is connected to the wind guiding chamber and is communicated with the wind guiding chamber.

[0015] The air inlet is opened in the air inlet chamber; the blower unit is accommodated in the wind guiding chamber.

[0016] In an alternative embodiment, the wind guiding chamber has an arc-shaped profile adapted to the first volute and the second volute.

[0017] In an alternative embodiment, the air inlet box is further provided with a movable air damper. The movable air damper is rotatably connected to the air inlet chamber and is used to close or open the air inlet.

[0018] In an alternative embodiment, the blower unit includes a first blower and a second blower arranged in the air inlet box.

[0019] Wherein, the first blower is used to guide the air flow in the air inlet box to be conveyed to the upper flow channel, and the second blower is used to guide the air flow in the air inlet box to be conveyed to the lower flow channel.

[0020] In an alternative embodiment, the in-vehicle HVAC system further includes a wind guiding box, and the wind guiding box is connected between the air inlet box and the distribution box.

[0021] The wind guiding box is provided with a first wind guiding channel and a second wind guiding channel. The first wind guiding channel communicates the air outlet of the first volute with the upper flow channel, and the second wind guiding channel communicates the air outlet of the second volute with the lower flow channel.

[0022] In a second aspect, the present invention provides an in-vehicle HVAC system, and the HVAC system includes the above-mentioned in-vehicle HVAC system.

[0023] The beneficial effects of the embodiments of the present invention include:

[0024] The center-mounted air handling unit includes a distribution box and an air inlet box, and the distribution box is connected to the air inlet box; the distribution box is configured with an upper flow channel and a lower flow channel; the air inlet box is configured with an air inlet, and the air inlet is located on the side of the distribution box away from the distribution box; wherein, both the upper flow channel and the lower flow channel are communicated with the air inlet box.

[0025] This center-mounted air handling unit is applied to the automotive HVAC system. It has a simple structure and a small structural volume, and can achieve the double-flow function in a smaller space, thereby being able to reduce the occupied interior space of the vehicle, which is beneficial to the optimization of the interior space and the styling; at the same time, it can be commonly used for both left-hand drive and right-hand drive vehicle models, that is, it has a wide adaptation range and good versatility, thus being able to reduce the R & D and application costs. Brief Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic structural diagram of the center-mounted air handling unit from the first perspective in the embodiment of the present invention;

[0028] Figure 2 It is a schematic structural diagram of the center-mounted air handling unit from the second perspective in the embodiment of the present invention;

[0029] Figure 3 It is a schematic structural diagram of the air inlet box from the first perspective in the embodiment of the present invention;

[0030] Figure 4 It is a schematic structural diagram of the air inlet box from the second perspective in the embodiment of the present invention;

[0031] Figure 5 It is an installation schematic diagram of the fan unit in the embodiment of the present invention;

[0032] Figure 6 It is a schematic structural diagram of the twin-shaft blower in the embodiment of the present invention.

[0033] Reference Signs: 100 - Center-mounted air handling unit; 110 - Distribution box; 120 - Air inlet box; 111 - Upper flow channel; 112 - Lower flow channel; 121 - Air inlet; 130 - Fan unit; 131 - Twin-shaft blower; 132 - Fan housing; 133 - First volute; 134 - Second volute; 135 - Driving motor; 136 - First impeller; 137 - Second impeller; 122 - Air inlet chamber; 123 - Air guiding chamber; 140 - Movable air damper; 150 - Air guiding box. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0038] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0039] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0040] Please refer to Figures 1-4 , this embodiment provides a central air conditioning box 100, the central air conditioning box 100 includes a distribution box 110 and an air inlet box, the distribution box 110 is connected to the air inlet box 120;

[0041] The distribution box 110 is provided with an upper flow channel 111 and a lower flow channel 112; the air inlet box 120 is provided with an air inlet 121, and the air inlet 121 is located on a side of the distribution box 110 away from the distribution box 110;

[0042] The upper flow channel 111 and the lower flow channel 112 are both connected to the air inlet box 120 .

[0043] Please refer to Figures 1-4 The working principle of the central air conditioning box 100 is:

[0044] The central air conditioning box 100 includes a distribution box 110 and an air inlet box 120, and the distribution box 110 is connected to the air inlet box 120; and when the air inlet box 120 and the distribution box 110 are connected, a central arrangement is adopted, which can effectively reduce the -X direction (such as Figure 2 The space inside the vehicle occupied by the vehicle (in the direction indicated by the arrow in the middle) can be reduced, thereby reducing the overall structural volume and facilitating the optimization of the layout of the space inside the vehicle;

[0045] The present embodiment is based on the application of double-layer flow, that is, the distribution box 110 is provided with an upper-layer flow channel 111 and a lower-layer flow channel 112; and the air inlet box 120 is provided with an air inlet 121, and the air inlet 121 is located on the side of the distribution box 110 away from the distribution box 110; wherein the upper-layer flow channel 111 and the lower-layer flow channel 112 are both connected to the air inlet box 120.

[0046] Therefore, when configuring the air inlet 121, the air inlet 121 is arranged on the side of the distribution box 110 away from the distribution box 110 based on the aforementioned central arrangement, so that the area of ​​the air inlet 121 can be increased without increasing the structural size of the air inlet box 120, thereby improving the air intake effect, and in this way, the structural arrangement of the air inlet 121 can be universally applicable to left-hand drive and right-hand drive vehicles;

[0047] In summary, the center-mounted air-conditioning box 100 is applied to the automobile HVAC system. It has a simple structure and a small volume, and can realize the double-layer flow function in a smaller space, thereby reducing the occupied space inside the vehicle, which is beneficial to the optimization and styling of the interior space; at the same time, it can be commonly used for left-hand drive and right-hand drive models, that is, it has a wide range of adaptability and good versatility, thereby reducing R&D and application costs.

[0048] For further information, please refer to Figures 1-5 In this embodiment, in order to improve the efficiency of air intake and air guide, the central air conditioner 100 further includes a fan unit 130 disposed in the air intake box 120. The fan unit 130 is used to guide the airflow in the air intake box 120 to the upper flow channel 111 and guide the airflow in the air intake box 120 to the lower flow channel 112. For details, please refer to Figures 1-6 , this embodiment adopts a method in which the fan unit 130 includes a double-axis blower 131;

[0049] The twin-shaft blower 131 includes a blower housing 132, a first volute 133, a second volute 134, a drive motor 135, a first impeller 136, and a second impeller 137;

[0050] The blower housing 132, the first volute 133, and the second volute 134 are all connected to the air inlet box 120. The drive motor 135 is connected to the blower housing 132, and the drive motor 135 is located between the first volute 133 and the second volute 134 and is in transmission connection with the first impeller 136 rotatably arranged in the first volute 133 and the second impeller 137 rotatably arranged in the second volute 134;

[0051] Wherein, the air inlets 121 of the first volute 133 and the second volute 134 are both communicated with the air inlet box 120. The air outlet of the first volute 133 is communicated with the upper flow channel 111, and the air outlet of the second volute 134 is communicated with the lower flow channel 112.

[0052] By adopting the foregoing setting method, the drive motor 135 can be used to drive the first impeller 136 and the second impeller 137 to rotate. Moreover, on this basis, by adjusting the structure of the output shaft of the drive motor 135 or correspondingly setting a corresponding electric control transmission structure, on the basis that the first impeller 136 and the second impeller 137 adopt the same power source, the operating conditions such as the rotational speeds of the first impeller 136 and the second impeller 137 can be controlled; that is, on the basis of the foregoing structure, the synchronous operation of the first impeller 136 and the second impeller 137 can be realized, and the first impeller 136 and the second impeller 137 can also operate independently on the basis of the same power source.

[0053] In addition, on the basis of the above structure, when configuring the first volute 133 and the second volute 134, since the air inlet 121 has been appropriately enlarged, therefore, under the same air volume requirement, smaller-sized first impeller 136 and second impeller 137 can be selected. Such a setting method can reduce the structural sizes of the selected first volute 133 and second volute 134. Thus, based on the design of the air inlet 121, the structure of the air inlet box 120 can be further optimized, so that on the basis of the reduction of the structural sizes of the first volute 133 and the second volute 134, the structural size of the air inlet box 120 can be appropriately reduced, and further, through the foregoing method, the air inlet box 120 can be further optimized, thereby further reducing the space occupied by the air inlet box 120, which is beneficial to saving space.

[0054] Further, please refer to Figures 1-6, on the basis of the above structure, while optimizing its structure and volume, based on the structure of the twin-shaft blower 131, the efficiency of the twin-shaft blower 131 can also be improved. Specifically, the side of the first volute 133 facing away from the second volute 134 can be spaced from the inner wall of the air inlet box 120, and the side of the second volute 134 facing away from the first volute 133 can be spaced from the inner wall of the air inlet box 120. Therefore, through such a setting method, air can enter from both sides of the first volute 133 and the second volute 134, thereby improving the air inlet and air guiding efficiency.

[0055] Please refer to Figures 1-6 , on the basis of the above content, when configuring the air inlet box 120, for the convenience of optimizing its structure, the air inlet box 120 may include an air inlet chamber 122 and an air guiding chamber 123. The air inlet chamber 122 is connected to the air guiding chamber 123 and is in communication with the air guiding chamber 123; the air inlet 121 is opened in the air inlet chamber 122; the blower unit 130 is accommodated in the air guiding chamber 123. Such a setting method aims to make the air inlet box 120 a modular structure, which aims to be able to separately manufacture the air inlet chamber 122 and the air guiding chamber 123, and during the assembly process, it is convenient for the installation of each structure inside the air inlet box 120, thereby improving the installation efficiency. At the same time, its modular structure setting can, based on the usage requirements, quickly replace the air inlet chamber 122 with different sizes and replace the air guiding chamber 123 that can be adapted to different sizes of the twin-shaft blower 131. Thus, the versatility during its use is improved, and further, its flexibility in use is improved. At the same time, on this basis, the assembly and maintenance difficulty is reduced to further reduce its use cost.

[0056] When configuring the air guiding chamber 123, based on the settings of the first volute 133 and the second volute 134 of the above-mentioned twin-shaft blower 131, the air guiding chamber 123 can have an arc-shaped contour adapted to the first volute 133 and the second volute 134. That is, the shell part of the air guiding chamber 123 covering the outside of the first volute 133 and the second volute 134 has an arc-shaped contour adapted to the first volute 133 and the second volute 134, so as to improve the air guiding adaptability in this way, improve the air guiding efficiency, and is beneficial to reducing its structural size, thereby reducing the space occupied by it in the vehicle.

[0057] In addition, on the basis of the above structure, please refer to Figures 1-6 , in order to switch it to the internal circulation or external circulation state during its operation and adjust the size of the air intake volume of its air inlet 121, therefore, the air inlet box 120 is further configured with a movable air damper 140. The movable air damper 140 is rotatably connected to the air inlet chamber 122 and is used to close or open the air inlet 121.

[0058] Furthermore, please refer toFigures 1-6 , the air inlet box 120 structure provided in this embodiment not only adapts to the structural arrangement of the above-mentioned dual-axis blower 131, but also can be applied to the structural arrangement of dual blowers. Therefore, different from the structural arrangement of the above-mentioned dual-axis blower 131, in other embodiments of the utility model, the blower unit 130 may further include a first blower and a second blower disposed in the air inlet box 120. The first blower and the second blower are independent of each other. Among them, the first blower is used to guide the air flow in the air inlet box 120 to the upper laminar flow channel 111, and the second blower is used to guide the air flow in the air inlet box 120 to the lower laminar flow channel 112.

[0059] On the basis of configuring the foregoing structure, in order to improve the smoothness of air guiding, therefore, the central air conditioner box 100 further includes an air guiding box 150. The air guiding box 150 is connected between the air inlet box 120 and the distribution box 110; the air guiding box 150 is configured with a first air guiding channel and a second air guiding channel. The first air guiding channel communicates the air outlet of the first volute with the upper laminar flow channel 111, and the second air guiding channel communicates the air outlet of the second volute 134 with the lower laminar flow channel 112. It should be noted that when configuring the air guiding box 150, it can not only play the role of air guiding, but also be used to install structures such as filters.

[0060] Based on the above content, please refer to Figures 1-6 , this embodiment also provides an automotive HVAC system. The HVAC system includes the above-mentioned central air conditioner box 100;

[0061] This automotive HVAC system is applied to an automobile, and according to its structural arrangement, it can be applicable to left-hand drive and right-hand drive vehicle models, and is adapted to hybrid vehicle models, fuel vehicle models and pure electric vehicle models; on this basis, when the automotive HVAC system using the above-mentioned central air conditioner box 100 is applied to an automobile, it can realize the double laminar flow function in a smaller space, thereby being able to reduce the occupied interior space of the vehicle, which is beneficial to the optimization of the interior space and the styling; at the same time, it can be universal for left-hand drive and right-hand drive vehicle models, that is, it has a wide adaptation range and good versatility, thereby being able to reduce the R & D and application costs.

[0062] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A central air conditioning box, characterized in that: The central air conditioning box comprises a distribution box and an air inlet box, wherein the distribution box is connected to the air inlet box; The distribution box is provided with an upper flow channel and a lower flow channel; the air inlet box is provided with an air inlet, and the air inlet is located on a side of the distribution box away from the distribution box; Wherein, the upper flow channel and the lower flow channel are both connected to the air inlet box.

2. The central air conditioning box according to claim 1, characterized in that: The center-mounted air conditioning box also includes a fan unit disposed in the air inlet box, and the fan unit is used to guide the airflow in the air inlet box to be transported to the upper flow channel and guide the airflow in the air inlet box to be transported to the lower flow channel.

3. The centrally mounted air conditioning box according to claim 2, characterized in that: The fan unit comprises a double-shaft blower, and the double-shaft blower comprises a fan housing, a first volute, a second volute, a drive motor, a first impeller, and a second impeller; The fan housing, the first volute and the second volute are all connected to the air inlet box, the drive motor is connected to the fan housing, and the drive motor is located between the first volute and the second volute, and is drivingly connected to the first impeller rotatably disposed in the first volute and the second impeller rotatably disposed in the second volute; The air inlets of the first volute and the second volute are both connected to the air inlet box, the air outlet of the first volute is connected to the upper flow channel, and the air outlet of the second volute is connected to the lower flow channel.

4. The centrally mounted air conditioning box according to claim 3, characterized in that: The first volute is spaced apart from the inner wall of the air inlet box on a side facing away from the second volute, and the second volute is spaced apart from the inner wall of the air inlet box on a side facing away from the first volute.

5. The centrally mounted air conditioning box according to claim 3, characterized in that: The air inlet box includes an air inlet bin and an air guide bin, the air inlet bin is connected to the air guide bin, and the air inlet bin is in communication with the air guide bin; The air inlet is opened in the air inlet bin; the fan unit is accommodated in the air guide bin.

6. The centrally mounted air conditioning box according to claim 5, characterized in that: The air guide bin has an arc-shaped profile adapted to the first volute and the second volute.

7. The centrally mounted air conditioning box according to claim 5, characterized in that: The air inlet box is also equipped with a movable air door, which is rotatably connected to the air inlet bin and is used to close or open the air inlet.

8. The centrally mounted air conditioning box according to claim 2, characterized in that: The fan unit includes a first blower and a second blower arranged in the air inlet box; The first blower is used to guide the airflow in the air inlet box to be transported to the upper flow channel, and the second blower is used to guide the airflow in the air inlet box to be transported to the lower flow channel.

9. The centrally mounted air conditioning box according to any one of claims 1 to 8, characterized in that: The centrally mounted air conditioning box further comprises an air guide box, wherein the air guide box is connected between the air inlet box and the distribution box; The air guide box is configured with a first air guide channel and a second air guide channel. The first air guide channel connects the air outlet of the first volute with the upper flow channel, and the second air guide channel connects the air outlet of the second volute with the lower flow channel.

10. An automotive HVAC system, characterized in that: The HVAC system includes a center-mounted air conditioning box as described in any one of claims 1-8.

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