CN115230432A - Air intake structure, HVAC system and vehicle - Google Patents

Abstract

The present disclosure relates to an air intake structure, an HVAC system, and a vehicle. The air intake structure includes a firewall and a blower disposed on the firewall; the air blower includes a first air inlet; the air intake structure further includes a cover and an air intake channel between the blower and the cover; The cover body includes a second air inlet; the cover body is mounted on the fire wall and cooperates with the fire wall to surround the blower; the air inlet passages are respectively connected with the first air inlet and the The second air inlet communicates with each other. The air intake structure in the present disclosure uses a cover body to surround the blower, and directly uses the gap formed between the cover body and the blower as the air intake air duct. On the basis of the 20000cm ² required by the standard, the overall space occupied by the air intake structure is more compact and the efficiency is higher.

Description

Air intake structure, HVAC system and vehicle

technical field

The present disclosure relates to the technical field of mechanical transmission, and in particular, to air intake structures, HVAC systems and vehicles.

Background technique

With the popularity of automobiles, people have begun to put forward higher requirements for the comfort of automobiles. Automobile air conditioning has become a necessary configuration of automobiles. HVAC assembly is a very important part of the entire automobile air conditioning system. The compactness and high efficiency of HVAC assembly play a very critical role in the space layout and comfort performance of the entire vehicle.

The prior art discloses an HVAC assembly structure for a heat pump type automobile air conditioner, including an air intake assembly mechanism, a defrosting air outlet assembly mechanism, a surface blowing air outlet assembly mechanism, and a foot blowing air outlet assembly mechanism. , Blower assembly mechanism, control assembly mechanism and indoor condenser, the air inlet end of the air inlet assembly mechanism is connected with the blower assembly mechanism, and the air outlet end of the air inlet assembly mechanism is connected to the defrosting air outlet through the air duct. The assembly mechanism, the blowing surface air outlet assembly mechanism and the foot blowing air outlet assembly mechanism are connected. One side of the indoor condenser is provided with an air PTC, and the other side of the indoor condenser is provided with an evaporator core at intervals. The evaporator and the air PTC evaporator core are integrated in the same cavity. The technology adds an indoor condenser, which can effectively save the energy consumption of the whole vehicle and achieve the effect of energy saving and emission reduction. The air inlet and outlet are controlled by controlling the damper, which has a good application prospect.

However, the HVAC assembly structure in the above technologies has defects such as insufficient compact space, low efficiency and high wind resistance.

SUMMARY OF THE INVENTION

The present disclosure provides an air intake structure, an HVAC system, and a vehicle to solve at least some of the problems in the related art.

According to a first aspect of the present disclosure, an air intake structure is provided, comprising a firewall and a blower disposed on the firewall; the blower includes a first air inlet; the air intake structure further includes a cover and a cover located between the blower and the blower. an air inlet channel between the hoods; the hood includes a second air inlet; the hood is mounted on the fire wall and cooperates with the fire wall to surround the blower; the air inlet channel respectively communicate with the first air inlet and the second air inlet.

Optionally, the air intake direction of the first air inlet includes a first direction; the air intake direction of the second air inlet includes a second direction; the first direction and the second direction are oppositely arranged.

Optionally, the second direction includes the direction of gravity.

Optionally, the cover body includes a top wall; the second air inlet is disposed on the top wall.

Optionally, the cover body includes a first surface and a second surface; the first surface faces the first air inlet; the second surface is connected to the first surface and is connected to the first surface An obtuse angle is formed between the surfaces.

Optionally, the obtuse angle ranges from 120° to 150°.

Optionally, the blower further includes a first air outlet communicated with the first air inlet; the air intake structure further includes an air outlet pipe communicated with the first air outlet; the second air intake The port faces the air outlet pipe.

Optionally, the blower includes a first end face facing the second air inlet; the air outlet pipe includes a second end face facing the second air inlet; the area of the first end face is larger than the The area of the second end face.

Optionally, the blower further includes a protruding portion disposed on the first end face; the protruding portion further includes a third end face and a guide wall enclosing a circle; the guide wall is connected and disposed on the first end face. Between one end surface and the third end surface; along the direction of the third end surface pointing to the first end surface, the guide wall is gradually inclined to the direction that the center of the first end surface points to the edge of the first end surface.

According to a second aspect of the present disclosure, an HVAC system is proposed, the HVAC system includes an air distributor and the above-mentioned air intake structure; the air distributor is arranged on the firewall, and is respectively located at the same location as the cover body. the opposite sides of the firewall.

According to a third aspect of the present disclosure, a vehicle is proposed, the vehicle includes an installation cavity; the HVAC system as described above is provided in the installation cavity.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

The cover body in the present disclosure cooperates with the firewall to directly and completely wrap the blower, avoid direct contact between the blower and the outside world, and greatly enhance the waterproof performance of the blower. At the same time, when the blower is in operation, the cover can also isolate most of the noise of the blower, thereby enhancing the overall NVH performance of the vehicle.

The air intake structure in the present disclosure uses a cover to surround the blower, and directly uses the gap formed between the cover and the blower as the air intake duct. On the basis of the 20000cm ² required by the standard, the overall space occupied by the air intake structure is more compact and the efficiency is higher.

It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure.

FIG. 1 is a schematic diagram 1 of an HVAC system in an exemplary embodiment of the present disclosure;

2 is a second schematic diagram of an HVAC system in an exemplary embodiment of the present disclosure;

FIG. 3 is a third schematic diagram of an HVAC system in an exemplary embodiment of the present disclosure.

Description of reference numerals: 1, firewall; 2, blower; 20, first air inlet; 3, cover body; 4, air inlet passage; 30, second air inlet; 31, top wall; 32, first surface 33, the second surface; 6, the air outlet; 210, the first end face; 220, the second end face; 211, the raised part; 5, the air distributor;

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as recited in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to limit the present disclosure. Unless otherwise defined, technical or scientific terms used in this disclosure shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. As used in this disclosure and in the claims, "first," "second," and similar terms do not denote any order, quantity, or importance, but are merely used to distinguish the various components. Likewise, words like "a" or "an" do not denote a quantitative limitation, but rather denote the existence of a number. "Plural" or "several" means two or more. Unless otherwise indicated, terms such as "front," "rear," "lower," and/or "upper" are for convenience of description and are not limited to one location or one spatial orientation. Words like "include" or "include" mean that the elements or items appearing before "including" or "including" cover the elements or items listed after "including" or "including" and their equivalents, and do not exclude other elements or object. "Connected" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

An HVAC system as shown in Figures 1-3 includes an air intake structure and an air distributor 5 . The air intake structure includes a firewall 1 , a cover 3 and a blower 2 mounted on the firewall 1 . The cover body 3 and the blower 2 are both located on one side of the firewall 1 , and the air distributor 5 is installed on the other side of the firewall 1 and communicated with the blower 2 .

Firewall 1 is a layer of iron plate between the engine and the cockpit of the car. This layer of iron plate is pasted with heat-insulating material. When the car engine catches fire, this layer of iron plate can be used to separate passengers from the engine. Firewall 1 not only This keeps passengers safe while allowing the driver to continue to control the engine. In the new energy vehicle, although the new energy vehicle is no longer provided with an engine, it is still provided with a firewall 1, and the cover body 3 and the blower 2 are located in the installation cavity originally used to install the engine.

As shown in FIG. 1 , the air distributor 5 includes two air outlets. One of the air outlets faces obliquely upward and is mainly used to blow to the passenger's face in the passenger compartment. The other air outlet faces obliquely downward and is mainly used to blow to the feet of the passengers located in the passenger compartment. The function of the air distributor 5 in the present disclosure is mainly to distribute the air volume transmitted from the air intake structure. Among them, the air distributor 5 can distribute all the air volume to the air outlet for blowing the face, and can also distribute all the air volume to the air outlet for blowing the feet, and can also adjust the air output of the two air outlets in real time according to the demand. Of course, in other embodiments, the air distributor 5 may further include a plurality of air outlets. The present disclosure does not limit this.

As shown in FIG. 3 , the cover 3 is installed on the firewall 1 and cooperates with the firewall 1 to surround the blower 2 . The cover body 3 in the present disclosure cooperates with the firewall 1 to directly and completely wrap the blower 2 to avoid direct contact of the blower 2 with the outside world, and greatly enhance the waterproof performance of the blower 2 . At the same time, when the blower 2 is in a running state, the cover 3 can also isolate most of the noise of the blower 2, thereby enhancing the overall NVH performance of the vehicle.

The air intake structure further includes an air intake channel 4 located between the blower 2 and the cover body 3 . The blower 2 includes a first air inlet 20 . The cover body 3 includes a second air inlet 30 . The intake passages 4 communicate with the first intake port 20 and the second intake port 30, respectively.

The air intake structure in the present disclosure adopts the cover body 3 to surround the blower 2, and directly uses the gap formed between the cover body 3 and the blower 2 as the air intake air duct. On the basis of the cross-sectional area of 20000cm ² required by the industry standard, the overall space occupied by the air intake structure is more compact and the efficiency is higher.

It should be noted that the blower 2 in the present disclosure may be located in the center of the inside of the cover body 3 , so that the air intake passage 4 is formed by the six-side gap between the blower blower 2 and the cover body 3 . The blower 2 can also be attached to one side of the cover body 3 , and the intake passage 4 is formed by the five-side gap between the blower 2 and the cover body 3 . The present disclosure does not limit this.

In some embodiments, the intake direction of the first intake port 20 includes the first direction. The intake direction of the second intake port 30 includes the second direction. The first direction and the second direction are oppositely arranged. This arrangement makes the gas in the air inlet passage 4 move from the second air inlet 30 to the first air inlet 20 from one side of the cover body 3 to the opposite side, so that the The gas in the air inlet channel 4 can completely fill the entire space of the cover body 3, thereby improving the space utilization rate in the cover body 3, thereby improving the air intake efficiency of the gas. At the same time, it also makes the maximum cross-sectional area of the air intake channel 4 reach the theoretical maximum value, so that the maximum cross-sectional area of the air intake channel 4 is 20,000 cm ² , which is required by the industry standard, and the overall space occupied by the air intake structure is larger. to be compact.

As an optional embodiment, the cover body 3 includes a top wall 31 . The second air inlet 30 is disposed on the top wall 31 . The second air inlet 30 on the cover body 3 is mainly used for docking with the air duct in the vehicle, and the second air inlet 30 is arranged on the top wall 31 of the cover body 3 to facilitate its docking with the air duct in the vehicle, thereby Reducing the total length of the air duct in the vehicle reduces the space occupied by the air duct, reduces the weight of the vehicle, and saves costs at the same time.

In the above embodiment, the air intake direction of the second air inlet 30 is mainly directed in the direction of gravity, and the air intake direction of the first air inlet 20 of the blower 2 is mainly directed in the direction opposite to the direction of gravity. As shown in FIG. 1 , when the air enters from the second air inlet 30 , the air directly passes through the gap between the blower 2 and the cover body 3 , that is, the air intake passage 4 and travels downward until it reaches the lower end surface of the blower 2 and the cover body 3 . After the gap between the bottom walls, it is sucked by the blower 2.

It should be noted that the gas entering from the second air inlet 30 is generally mixed with moisture. And in the process of entering the gas from the second air inlet 30 located on the top wall 31 of the cover 3 to the first air inlet 20 , there is a moving process of inversion. During the inversion process, the moisture contained in the gas cannot be inhaled by the blower 2 due to its heavy weight, and then directly falls on the bottom wall of the cover body 3, while the gas is inhaled by the blower 2 due to its light density, thereby achieving water separation. Effect. Therein, the term moisture as used herein can encompass any form of liquid or vapor entrained in a gas, and not only water entrained in a gas.

In the above embodiment, the air intake structure further includes a water outlet. A water outlet is provided on the bottom wall of the cover body 3 to discharge the moisture separated from the gas.

As an optional embodiment, the cover body 3 includes a side wall 34 . The second air inlet 30 is disposed on the side wall 34 . The air intake direction of the second air inlet 30 is mainly directed to the horizontal direction, and the air intake direction of the first air intake port 20 of the blower 2 is mainly directed to the horizontal direction opposite to the air intake direction of the second air intake port 30 . When the gas comes in from the second air inlet 30, the air diffuses along the gap between the side of the blower 2 and the side wall 34 of the cover 3, and fills the entire gap between the cover 3 and the blower 2, that is, along the air intake The channel 4 travels until it moves to the gap between the opposite side wall 34 of the cover body 3 and the blower 2 , and is then sucked by the blower 2 .

As an optional embodiment, the cover body 3 includes a bottom wall. The second air inlet 30 is provided on the bottom wall. The air intake direction of the second air inlet 30 is mainly directed in the opposite direction to the direction of gravity, and the air intake direction of the first air intake 20 of the blower 2 is mainly directed in the direction of gravity. When the gas enters from the second air inlet 30, the air directly travels upward through the gap between the blower 2 and the cover body 3, that is, the air inlet passage 4, that is, along the air inlet passage 4, until it reaches the upper end face of the blower 2 and the cover. After the gap between the top walls 31 of the body 3 is removed, it is sucked by the blower 2 .

In some embodiments, the blower 2 further includes a protruding portion 211 disposed on the first end surface 210 . The raised portion 211 also includes a third end surface and a guide wall encircling a circle. The guide wall is connected between the first end face 210 and the third end face. Along the direction in which the third end face points to the first end face 210 , the guide wall is gradually inclined toward the direction in which the center of the first end face 210 faces the edge of the first end face 210 . After the gas in the present disclosure enters the gas inlet channel 4 from the second gas inlet 30, most of the gas first contacts the guide wall of the raised portion 211, and gradually diffuses around under the action of the guide wall, thereby effectively reducing the gas flow from The energy loss after the second air inlet 30 enters the air intake passage reduces the wind resistance.

In some embodiments, the shell 3 includes a first surface 32 and a second surface 33 . The first surface 32 faces the first air inlet 20 . The second surface 33 is connected to the first surface 32 and forms an included angle with the first surface 32 . The included angle ranges from 120° to 150°. With this arrangement, the second surface 33 can divert the air in the air intake passage 4 to reduce wind resistance.

It should be noted that the first surface 32 is also located at different positions of the cover body 3 according to the different positions of the second air inlet 30 . For example, when the second air inlet 30 is located on the top wall 31, the first surface 32 is located on the bottom wall. When the second air inlet 30 is located on the side wall 34 , the first surface 32 is located on the other side wall 34 opposite to the cover body 3 . When the second air inlet 30 is located on the bottom wall, the first surface 32 is located on the top wall 31 .

In some embodiments, the blower 2 further includes a first air outlet communicating with the first air inlet 20 . The air intake structure also includes an air outlet duct 6 . One end of the air outlet duct 6 is communicated with the first air outlet, and the other end of the air outlet duct 6 is communicated with the air distributor 5, so that the gas sucked by the blower 2 can be sent to the air distributor 5, and the second air inlet 30 is directed toward the air distributor 5. Outlet duct 6. After the gas enters the air inlet passage 4 from the second air inlet 30, it is directly blown towards the air outlet 6. The cross-sectional area of the air outlet 6 is generally smaller than that of the blower 2, that is, compared with the second air inlet 30. Facing the blower 2 , the gas in the above embodiment can be blocked less, thereby reducing the wind resistance in the intake passage 4 .

It should be noted that the air outlet pipe 6 in the present disclosure includes a round pipe, a square pipe or other special-shaped pipes. The present disclosure does not limit this.

As an optional embodiment, when the air outlet pipe 6 is a square pipe: the blower 2 includes a first end face 210 facing the second air inlet 30 . The air outlet duct 6 includes a second end surface 220 facing the second air inlet 30 . The area of the first end surface 210 is larger than that of the second end surface 220 . After the gas enters the air inlet passage 4 from the second air inlet 30, it is directly blown toward the air outlet duct 6. The area of the first end face 210 is larger than the area of the second end face 220, that is, the second air inlet 30 faces the blower 2 compared to the second air inlet 30. , the gas in the above embodiment can be blocked less, thereby reducing the wind resistance in the intake passage 4 .

The present disclosure also provides a vehicle that includes a mounting cavity. The HVAC system as above is provided in the installation cavity.

Other embodiments of the present disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the technical solutions disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common general knowledge or techniques in the technical field not disclosed by this disclosure . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (11)

1. An air intake structure includes a firewall and a blower provided to the firewall; the blower includes a first air inlet; the air inlet structure is characterized by further comprising a cover body and an air inlet channel positioned between the blower and the cover body; the housing includes a second air inlet; the cover body is arranged on the firewall and is matched with the firewall to surround the blower; the intake passage communicates with the first intake port and the second intake port, respectively.

2. The air intake structure of claim 1, wherein the air intake direction of the first air intake includes a first direction; the air inlet direction of the second air inlet comprises a second direction; the first direction and the second direction are oppositely arranged.

3. The air intake structure of claim 2, wherein the second direction comprises a direction of gravity.

4. The air intake structure of claim 1, wherein the shroud includes a top wall; the second air inlet is arranged on the top wall.

5. The air intake structure of claim 1, wherein the shroud includes a first surface and a second surface; the first surface faces the first air inlet; the second surface is connected with the first surface, and forms an obtuse angle with the first surface.

6. An air intake structure according to claim 5, wherein the obtuse angle is in the range of 120 ° to 150 °.

7. The air intake structure of claim 1, wherein the blower further comprises a first air outlet in communication with the first air inlet; the air inlet structure also comprises an air outlet pipe communicated with the first air outlet; the second air inlet faces the air outlet pipe.

8. The air intake structure of claim 7, wherein the blower includes a first end surface facing the second air intake opening; the air outlet pipe comprises a second end face facing the second air inlet; the area of the first end face is larger than that of the second end face.

9. The air intake structure of claim 8, wherein the blower further includes a boss provided to the first end face; the boss further comprises a third end face and a guide wall which encloses a circle; the guide wall is connected and arranged between the first end face and the third end face; in a direction in which the third end surface is directed toward the first end surface, the guide wall is gradually inclined in a direction in which a center of the first end surface is directed toward an edge of the first end surface.

10. An HVAC system comprising a splitter and the air intake structure of any one of claims 1-9; the air distributor is arranged on the firewall and is respectively positioned on two opposite sides of the firewall with the cover body.

11. A vehicle, characterized in that the vehicle comprises a mounting cavity; the HVAC system as set forth in claim 10 disposed in said mounting cavity.

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