CN110203033A - Air inlet structure for vehicle air conditioner and the vehicle air conditioner including it - Google Patents

Abstract

The application provides an air intake structure for a vehicle air-conditioning system, which includes a casing of a gas circulation path, an internal and external circulation damper arranged in the casing, and a one-way air curtain is arranged at one end of the gas flow path, and the one-way The air curtain is fixed to the housing in such a way that it can be lifted toward the direction of the internal and external circulation damper, and the one-way air curtain blocks the flow path at the end when it is not lifted, so as to prevent the flow of gas, wherein , the end portion is the end portion of the circulation path close to the passenger compartment when the casing is installed to the vehicle. Air conditioning systems for vehicles are also provided. Adopting the air intake structure or the air conditioning system of the present application can effectively prevent external unpurified and/or unheated air from entering the passenger compartment.

Description

Air intake structure for vehicle air conditioning system and vehicle air conditioning system including same

technical field

The invention relates to a vehicle air-conditioning system, in particular to an air intake structure.

Background technique

The internal and external circulation damper of the automobile air conditioner is the wind direction adjustment mechanism in the automobile air conditioning system. Whether it is in the external circulation or the internal circulation, it is expected to achieve a sealing effect to ensure air tightness and avoid wind blowing.

Slightly different from traditional fuel vehicles, new energy vehicles such as electric vehicles also have a mixed mode of internal and external circulation in the air conditioning system settings. Simply put, it is to allow the internal and external circulation door of the air conditioner to work in an intermediate state. In this state, in the external circulation mode, the air with a higher temperature in the passenger compartment of the vehicle is allowed to flow to the system through the structure in the passenger compartment of the air conditioning system. Passenger exterior structure 2 neutralizes cold air from the outside to save power. In this case, however, it is easy for outside air to enter the passenger compartment of the vehicle.

Therefore, it is necessary to provide a new vehicle air-conditioning air intake structure to effectively avoid the above-mentioned problems.

Contents of the invention

The present application provides a new vehicle air-conditioning air intake structure to effectively block air from entering the passenger compartment at least in the mixed internal and external circulation mode.

The air intake structure for the vehicle air-conditioning system includes a casing of a gas circulation path, an internal and external circulation damper arranged in the casing, and a one-way air curtain is arranged at one end of the gas flow path, and the one-way air curtain It is fixed to the housing in a manner that can be lifted toward the direction of the internal and external circulation damper, and the one-way air curtain blocks the flow path at the end when it is not lifted, so as to prevent the flow of gas, wherein the The end portion is the end portion of the circulation path close to the passenger compartment when the housing is installed to the vehicle.

According to the air intake structure for a vehicle air-conditioning system according to an example of the present application, a portion of the one-way curtain passing its edge is fixed to the housing.

According to the air intake structure for a vehicle air-conditioning system in an example of the present application, the one-way air curtain is fixed to the casing by a bead.

According to the air intake structure for a vehicle air-conditioning system according to an example of the present application, the part of the edge is the top end of the one-way air curtain.

According to the air intake structure for a vehicle air-conditioning system according to the example of the present application, the housing further includes a baffle provided at the end.

According to the air intake structure for a vehicle air-conditioning system according to the example of the present application, a bar is provided on the one-way air curtain to prevent the one-way air curtain from being lifted in a direction away from the inner-outer circulation damper.

An air intake structure for a vehicle air conditioning system according to an example of the present application is a passenger exterior structure provided outside a passenger cabin in the vehicle air conditioning system.

The present application also provides an air-conditioning system for a vehicle, which includes any one of the air intake structures described above.

Description of drawings

Fig. 1 is a schematic structural diagram of an existing air conditioning system.

Fig. 2 is a schematic diagram of an air intake structure for a vehicle air conditioning system according to an example of the present invention.

Fig. 3 is a schematic diagram of an air intake structure for a vehicle air-conditioning system according to an example of the present invention. Compared with Fig. 2 , Fig. 3 illustrates an internal circulation mode.

Fig. 4 is a schematic illustration of a partial structure of an air intake structure for a vehicle air conditioning system according to an example of the present invention.

Fig. 5 is a schematic cross-sectional view of a one-way air curtain according to an example of the present invention.

Detailed ways

The present application will be further described with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be complete and will convey the concept of the invention to those skilled in the art. In the drawings, the same reference numerals refer to the same elements or parts.

Fig. 1 is a schematic structural diagram of an existing air conditioning system. As shown in the figure, the air conditioning system includes a structure 1 outside the passenger cabin and a structure 2 inside the passenger cabin. As known, usually the passenger exterior structure 1 is arranged outside the passenger compartment of the vehicle, such as the engine compartment, while the passenger interior structure 2 is arranged in the passenger compartment of the vehicle, and the passenger exterior structure 1 and the passenger interior structure 2 are connected to each other. The connection realizes the ventilation, cooling, heating, dehumidification and other functions of the vehicle air conditioning system. When the air-conditioning system works in the external circulation mode, external air enters from the entrance 10 of the structure 1 outside the passenger cabin, and is filtered by the filter device 14 under the action of the blower 16, and goes toward the circulation path 18, and finally passes through the structure 2 inside the passenger cabin. The circulation path 22 reaches the passenger compartment. When the air-conditioning system works in the internal circulation mode, the air in the passenger compartment of the vehicle flows in from the channel opening 20 of the structure 2 inside the passenger compartment, enters the circulation path 11 of the structure 1 outside the passenger compartment through the circulation path, and then passes through the filter device 14 to the outside of the passenger compartment The circulation path 18 of structure 1 then enters the circulation path 22 of structure 2 in the passenger compartment, and finally returns to the passenger compartment.

When the air-conditioning system works, for example, in the mixed mode of internal and external circulation, the structure shown in Figure 1 may in some cases have such a situation: part of the air entering from the structure 1 outside the passenger compartment will pass through the air-conditioning internal and external circulation damper 12 into the flow path 11 instead of through the filter device 14 into the flow path 18 as intended. This part of air enters the circulation path 21 of the structure 2 in the passenger compartment without filtering, and finally enters the passenger compartment through the channel opening 20 . The situation where the air entering the passenger exterior structure 1 directly enters the passenger compartment through the damper 12, for example, the blower does not have enough influence on the wind entering the passenger exterior structure 1, and fails to promote all the air entering the passenger exterior structure 1. Enter the flow path 18 through the filter device 14 . When the speed of the electric vehicle is high and the working intensity of the blower is low, the above-mentioned situation of blowing wind may occur.

Fig. 2 is a schematic diagram of an air intake structure for a vehicle air conditioning system according to an example of the present invention. Compared with the air intake structure illustrated in FIG. 1 , the air intake structure illustrated in the present application is provided with a one-way air curtain 30 between the flow paths of the structure 1 outside the passenger cabin and the structure 2 inside the passenger cabin. The one-way air curtain 30 is fixed to the shell of the passenger cabin exterior structure 1 in a manner that can be lifted toward the air-conditioning internal and external circulation damper 12, so as to prevent air from flowing through. The one-way wind curtain 30 is provided at the end of the circulation path of the passenger cabin structure 1 including the air-conditioning internal and external circulation door 12, and this end is the end of the circulation path close to the passenger compartment when the housing is installed on the vehicle.

As shown in Figure 2, the air that enters from the entrance 10 of the structure 1 outside the passenger compartment, the gas that flows into the flow path 11 through the air-conditioning internal and external circulation damper 12, when it is about to flow into the structure 2 in the passenger compartment, due to the one-way air curtain 30 The flow path 11 is blocked and cannot go forward, but can only be turned back, so as to enter the flow path 18 through the filter device 14, which effectively prevents unfiltered air from flowing into the passenger compartment structure 2, especially avoiding the mixing of internal and external circulation This kind of wind blowing occurs in the mode.

Fig. 3 is also a schematic diagram of an air intake structure for a vehicle air conditioning system according to an example of the present invention. Compared with Fig. 2, Fig. 3 shows the internal circulation mode. In this mode, the air in the passenger cabin flows in from the channel opening 20 of the passenger cabin structure 2, lifts the one-way air curtain 30, enters the circulation path 11 of the passenger cabin external structure 1, and is filtered by the filter device 14 toward the circulation path. path 18, and finally enters the circulation path 22 of the structure 2 in the passenger compartment to reach the passenger compartment.

Fig. 4 is a schematic illustration of a partial structure of an air intake structure for a vehicle air conditioning system according to an example of the present invention. What is shown is a part of the shell and the flow path 11 of the passenger cabin exterior structure 1 , and the air conditioner internal and external circulation damper 12 is omitted in this illustration. Fig. 5 is a cross-sectional view of the part of the housing at the one-way curtain according to an example of the present invention, which is only schematic.

The one-way air curtain 30 is described with reference to FIG. 4 and FIG. 5 at the same time. By way of example and not limitation, the shape of the one-way curtain 30 matches the shape of the housing that configures the flow path 11 . In this example, the end face of the housing is substantially rectangular, so the one-way air curtain 30 is also approximately rectangular, and the one-way air curtain 30 is configured so that it can cover the entire flow path 11 when it is not lifted, such as its length and width. are respectively greater than the length and width of the section of the flow path 11 . In the example of the present application, the one-way air curtain 30 is fixed to the housing through the bead 33, more specifically, the one-way air curtain 30 is fixed to the housing by fixing the edge 34 of the one-way curtain 30 through the bead. of. In addition, other fixing methods are also possible, such as pasting, etc., as long as the one-way air curtain 30 can be fixed to the casing according to a desired opening and closing form.

In the example of the present application, the one-way air curtain 30 is fixed to the housing by fixing the top end of the edge 34 of the one-way air curtain 30 to the housing. The end farthest from the ground. In some other examples, the one-way wind curtain 30 can also be fixed to the casing by fixing the part near the top of the edge to the casing. No matter what kind of fixing method and no matter where it is fixed by the edge of the one-way air curtain 30 , as long as it is fixed in a manner that it is lifted towards the direction of the inner and outer circulation damper 12 .

In the example of the present application, at the end of the housing where the one-way wind curtain 30 is installed, a retaining strip 31 is also provided to effectively prevent the one-way wind curtain 30 from being lifted toward the passenger cabin interior structure 2 . The bar 31 can be configured as a plurality of grids, for example. The bar spans the housing end by way of example and not limitation.

Alternatively, a dam strip may also be provided on the one-way curtain 30 , and in this case, it is not necessary to provide a dam strip across the end of the housing. The length of the retaining strip arranged on the one-way curtain 30 depends on the direction in which it is arranged and the size of the end of the housing. For example, if the retaining bar is arranged along the length of the one-way air curtain 30, then the retaining bar will be longer than the dimension of the end portion of the housing in the length direction, so that the one-way air curtain 30 is directed towards the passenger cabin interior structure 2. When it is lifted, it plays a blocking role.

It should be noted that the retaining bar is not a mandatory component. According to the present application, the one-way air curtain 30 should be able to block the flow path 11, and under the condition that the material of the one-way air curtain 30 has a certain hardness, there is no need for a baffle (it is not necessary to set a baffle on the housing or it is not necessary to install a baffle in the one-way wind). The blocking strip on the curtain 30), but prevent it from being lifted in the direction of the structure 2 in the passenger compartment through the blocking of the one-way wind curtain 30 by the housing. In this case, the hardness of the material of the one-way air curtain 30 can be determined according to the force that the air enters the circulation path 11 in the external circulation mode and acts on the one-way air curtain 30 so that it is lifted toward the passenger compartment structure 2 , also considering the situation that the air from the structure 2 in the passenger compartment will lift the one-way air curtain 30 towards the internal and external circulation damper during the internal circulation/internal and external mixed circulation.

In the above descriptions of various examples in conjunction with the accompanying drawings, the arrows in the flow path indicate the gas flow direction in different situations.

Although the present application has been described in conjunction with different examples, it should be noted that the embodiments or examples given here can be combined with each other as required. For example, if the material of the one-way air curtain 30 has a certain degree of hardness, it is of course also possible to provide a retaining strip.

The present application also provides an air-conditioning system for a vehicle, which adopts the air intake structure for a vehicle air-conditioning system as described above.

Adopting the air intake structure or the air conditioning system of the present application can effectively prevent external unpurified and/or unheated air from entering the passenger compartment.

Although only some of the embodiments of the present invention have been described, those skilled in the art should appreciate that the present invention can be implemented in many other forms without departing from the spirit and scope thereof. The examples and embodiments shown are therefore to be regarded as illustrative and not restrictive, and the invention may cover various modifications without departing from the spirit and scope of the invention as defined in the appended claims with replace.

Claims (8)

1. An air intake structure for a vehicle air-conditioning system, comprising a casing of a gas flow path, and an air-conditioning internal and external circulation damper arranged in the casing, characterized in that a one-way valve is arranged at one end of the gas flow path Air curtain, the one-way air curtain is fixed to the housing in a manner that can be lifted toward the air conditioner internal and external circulation damper, and the one-way air curtain blocks the flow path at the end when it is not lifted, To prevent gas from flowing through, wherein, the end portion is the end portion of the flow path close to the passenger compartment when the housing is installed to the vehicle. 2 . The air intake structure for a vehicle air-conditioning system according to claim 1 , wherein the one-way air curtain is fixed to the housing through an edge portion thereof. 3 . 3. The air intake structure for a vehicle air-conditioning system according to claim 2, wherein the one-way air curtain is fixed to the casing by a bead. 4. The air intake structure for a vehicle air-conditioning system according to claim 2, wherein the part of the edge is the top end of the one-way air curtain. 5. The air intake structure for a vehicle air-conditioning system according to any one of claims 1 to 4, characterized in that, the housing further comprises a baffle provided at the end. 6. The air intake structure for a vehicle air-conditioning system according to any one of claims 1 to 4, wherein a baffle is provided on the one-way air curtain to prevent the one-way air curtain from facing away from the The direction of the internal and external circulation air door of the air conditioner is lifted. 7 . The air intake structure for a vehicle air-conditioning system according to claim 1 , wherein the air intake structure is used in a structure outside the passenger compartment of the vehicle air-conditioning system. 8 . 8. An air conditioning system for a vehicle, comprising the air intake structure according to any one of claims 1 to 7.