Hidden demisting air duct structure and automobile

Abstract

The utility model relates to a hidden demisting air duct structure and an automobile. The hidden type demisting air duct structure is used for blowing air to demist automobile glass and comprises a front shell, a rear shell and an instrument board trim panel, an airflow channel for conveying demisting airflow is defined between the front shell and the rear shell, an airflow outlet is formed in the end, close to the automobile glass, of the airflow channel, and the airflow outlet is communicated with the front shell and the rear shell. And the instrument panel decoration plate extends to the airflow outlet and is assembled and connected with the front shell and / or the rear shell so as to form an air guide structure. According to the hidden demisting air duct structure, the influence of assembly errors on the demisting and defrosting effect can be reduced, and the stability of the demisting and defrosting effect is enhanced. The automobile provided by the utility model comprises the hidden demisting air duct structure.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a hidden defogger air duct structure and a vehicle. Background Art

[0002] When the temperature difference between the inside and outside of a car is large, fog or frost will form on the front windshield of the car, affecting driving safety. Therefore, cars are currently equipped with a front defogger duct in front of the dashboard to eliminate fog or frost by blowing air. In order to make the blowing cover wider and the defogger area larger, traditional defogger ducts are mostly arranged at the front plane of the dashboard. However, this position is within the field of vision of the driver and front passengers, and the defogger grille can be seen, which has poor visual quality and limits the shape of the dashboard. At the same time, when the external light intensity is high, the defogger grille will also be reflected on the front windshield, affecting driving safety.

[0003] A hidden defogger duct structure disclosed in the prior art includes an instrument panel body and a front windshield. A defogger duct is provided in the instrument panel body. The defogger duct is composed of a defogger half duct I and a defogger half duct II. A defogger grille is connected between the defogger duct outlet and the front end of the instrument panel body. The upper section of the defogger duct outlet is a straight section to guide the flow. The straight section is composed of a guide surface of the instrument body, a guide surface of the defogger grille, and an inner surface of the front windshield. However, since the defogger airflow in the prior art is guided by multiple components such as the instrument body, the defogger grille, and the front windshield, the assembly tolerances of the multiple components are accumulated, which will result in a larger assembly tolerance. The larger assembly tolerance has a greater adverse effect on the performance of the airflow, affecting the stability of the defogger performance. Utility Model Content

[0004] Based on this, the present application provides a hidden defogger duct structure and a car, which can reduce the impact of assembly errors on the defogger and defrost effects and enhance the stability of the defogger and defrost effects.

[0005] To this end, the present application adopts the following technical solution: a hidden defogger air duct structure for defoggering automobile glass by blowing air, the hidden defogger air duct structure comprising a front shell, a rear shell and an instrument panel trim, an air flow channel for conveying defogger airflow is formed between the front shell and the rear shell, an air flow outlet is provided at one end of the air flow channel close to the automobile glass, the instrument panel trim extends to the air flow outlet and is assembled and connected with the front shell and / or the rear shell to form an air guide structure.

[0006] In one embodiment, the instrument panel trim includes an integrally formed main body portion and an air deflector portion, the air deflector portion is disposed close to the automobile glass, the main body portion is relatively located below the air deflector portion, and an air outlet is formed between the air deflector portion and the main body portion.

[0007] In one embodiment, the air guide plate portion is assembled and connected to the rear shell at a position close to the air flow outlet, and the main body portion is assembled and connected to the front shell at a position close to the air flow outlet.

[0008] In one embodiment, a dashboard is mounted on the main body, and the portion of the main body forming the air guide outlet includes at least one bent portion.

[0009] In one embodiment, the bending portion includes a first side and a second side, and in the air outlet direction of the air guide outlet, the second side is bent from the first side toward a direction close to the automobile glass.

[0010] In one embodiment, an angle formed by the first side and the second side is not less than 120°.

[0011] In one embodiment, the first side and the air guide plate portion are parallel.

[0012] In one embodiment, the hidden defogger air duct structure has a plurality of air outlet grille holes, and the plurality of air outlet grille holes are arranged along the width direction of the car; wherein, in the width direction of the car, the air outlet grille holes near the middle of the car glass are set to have an air outlet area smaller than the air outlet area of ​​the air outlet grille holes at other positions.

[0013] In one embodiment, in the width direction of the automobile, the width of the air grille holes near the middle of the automobile glass is 14 mm-18 mm, and the width of the air grille holes at other positions is 20 mm-24 mm.

[0014] This application also adopts the following technical solutions:

[0015] A car comprises a front windshield and a hidden defogger duct structure as described in any of the above embodiments, wherein the hidden defogger duct structure is hidden by being shielded by the protruding upper edge of the instrument panel trim.

[0016] The hidden defogger air duct structure provided in the present application extends through the instrument panel trim to the airflow outlet and is assembled and connected to the front shell and / or the rear shell to form an air guide structure. This reduces the number of components used to form the air guide structure, greatly reduces the adverse effects on the defogger and defroster effects caused by assembly errors between components, and enhances the stability of the defogger and defroster effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A side view of an embodiment of a hidden defogger duct structure provided in the present application.

[0019] Figure 2 A top view of an embodiment of a hidden defogger duct structure provided in the present application.

[0020] Figure 3 For along Figure 2 Section view along line AA.

[0021] Figure 4 for Figure 3 A partial enlarged view shown at D in the middle.

[0022] Figure 5 For along Figure 2 Cross-sectional view along line BB.

[0023] Figure 6 for Figure 2 A partial enlarged view of point C in the middle.

[0024] The reference numerals of the components are as follows:

[0025] 100. Hidden defogger air duct structure; 10. Air flow channel; 101. Air flow outlet; 102. Air guide outlet; 103. Air outlet grille hole; 1. Rear shell; 2. Front shell; 3. Instrument panel trim; 31. Main body; 311. First side; 312. Second side; 32. Air guide plate; 4. Instrument panel; 5. Flexible pad. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0027] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are in contact indirectly through an intermediate medium. Moreover, a first feature being “above”, “above”, or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0031] See also Figures 1 to 6The present application provides a hidden defogger duct structure 100, which is used for blowing defogger and defrost the automobile glass. The hidden defogger duct structure 100 includes a front shell 2, a rear shell 1, and an instrument panel trim 3. The front shell 2 and the rear shell 1 form an airflow channel 10 for conveying defogger airflow. An airflow outlet 101 is provided at one end of the airflow channel 10 close to the automobile glass. The instrument panel trim 3 extends to the airflow outlet 101 and is assembled and connected with the front shell 2 and / or the rear shell 1 to form an air guide structure. In other words, the air guide structure is formed by extending the instrument panel trim 3 to the airflow outlet 101 and assembling and connecting with the front shell 2 and / or the rear shell 1. In this way, fewer parts are used to form the air guide structure, which greatly reduces the poor consistency of the air guide structure caused by the assembly error between the parts, thereby affecting the flow of the defogger airflow and causing adverse effects on the defogger and defroster effect, and enhances the stability of the defogger and defroster effect.

[0032] See also Figures 3 to 5 As shown, in this embodiment, the front shell 2 refers to the half shell that is closer to the driver than the rear shell 1 in the assembled state, that is, the half shell that is closer to the instrument panel 4; the rear shell 1 refers to the half shell that is farther from the driver than the front shell 2 in the assembled state, that is, farther from the instrument panel 4. The rear shell 1 and the front shell 2 are assembled to form an air flow channel 10. The rear shell 1 and the front shell 2 are finally assembled together with the instrument panel 3 to form an integral module, which is convenient for integral assembly in the vehicle or removal from the vehicle.

[0033] One end of the airflow channel 10 is connected to the HVAC equipment on the car, such as the air conditioning system, for supplying air to the HVAC equipment; the other end of the airflow channel 10 is arranged close to the car glass, and the end is provided with an airflow outlet 101 for the airflow to blow toward the car glass to achieve defog or defrost the car glass. In this embodiment, the car glass is the front windshield of the car, and the hidden defog duct structure 100 blows air to the front windshield. In other embodiments, other glass on the car, such as the rear windshield, can also be applied to the hidden defog duct structure 100 provided in the embodiment of the present application.

[0034] It can be understood that the airflow channel 10 is constructed so that the airflow can blow toward the automobile glass and can also flow to the left and right sides of the automobile glass, so that the airflow can cover most or even all of the glass surface, avoiding areas where defrosting and defrosting are not in place and affecting the vision of the driver and passengers. In this regard, in some embodiments, a guide structure can be provided in the airflow channel 10 to distribute and guide the airflow, so that the airflow evenly and comprehensively covers the glass surface.

[0035] Please continue reading Figures 3 to 5As shown, in this embodiment, the rear shell 1, the front shell 2 and the instrument panel 4 are all assembled on the instrument panel trim 3. The instrument panel trim 3 includes an integrally formed main body 31 and an air guide plate 32. The air guide plate 32 is arranged close to the automobile glass, the main body 31 is located below the air guide plate 32, and an air guide outlet 102 is formed between the air guide plate 32 and the main body 31. In this embodiment, the instrument panel trim 3 is formed with an air guide outlet 102 connected to the air flow channel 10. The air guide outlet 102 is connected to the outside of the air flow outlet 101 of the air flow channel 10, so as to guide the air flow out of the air flow outlet 101 to a flow direction suitable for blowing toward the automobile glass, for example, to guide the flow direction of the air flow to be roughly parallel to the surface direction of the automobile glass, so as to avoid or alleviate the situation where the air flow hits the automobile glass and causes the air flow to diverge. In this embodiment, the airflow out of the airflow outlet 101 is mainly guided by the air guide structure formed integrally on the instrument panel trim 3, rather than by multiple assembled parts, which greatly reduces the problem of poor consistency of the air guide structure caused by assembly errors between parts, thereby affecting the flow of airflow and causing adverse effects on the defogger and defrost effect. In this way, the assembly accuracy requirements for other parts can also be reduced, thereby reducing the difficulty of assembly.

[0036] In this embodiment, the air guide plate portion 32 is assembled and connected with the rear shell 1 near the air flow outlet 101, and the main body portion 31 is assembled and connected with the front shell 2 near the air flow outlet 101. The assembly at these positions can make the connection between the air guide structure and the air flow channel 10 reliable, and the air guide structure is not easy to loosen or deform, so as to ensure the stability of the air guide effect. In some embodiments, the assembly connection at these positions can be specifically through the cooperation of rib grooves, buckles, extrusion, etc., and the present application does not limit the specific assembly connection method. It should be noted that the assembly connection between the instrument panel 3 and the rear shell 1 and the front shell 2 is not limited to the connection between the air guide plate portion 32 and the main body portion 31 near the air flow outlet 101, and the rear shell 1 and the front shell 2 are also assembled and connected with the instrument panel 3 at other positions. A flexible pad 5 is provided on the upper surface of the air guide plate portion 32, and the flexible pad 5 is clamped between the air guide plate portion 32 and the automobile glass to prevent the air guide plate portion 32 from colliding and rubbing with the automobile glass. The flexible pad 5 can be a sponge strip, a silicone strip, etc.

[0037] See also Figure 3 and Figure 4As shown, in this embodiment, the instrument panel 4 is mounted on the main body 31 of the instrument panel trim 3. Most of the main body 31 is located below the instrument panel 4, and a small part is located above the instrument panel 4. The part of the main body 31 located above the instrument panel 4 forms a wind guide structure with the wind guide plate 32. In this embodiment, the part of the main body 31 forming the wind guide outlet 102 includes at least one bending portion. The bending portion includes a first edge 311 and a second edge 312, and the first edge 311 is parallel to the wind guide plate 32. In the air outlet direction of the wind guide outlet 102, the second edge 312 is bent from the first edge 311 to the direction close to the automobile glass. The bending portion is used to form a guide surface in the form of a folded surface, which reduces the distance between the instrument panel trim 3 and the automobile glass, improves the problem of affecting the aesthetic appearance, and provides a larger space for shape design. In this embodiment, the angle formed by the first edge 311 and the second edge 312 is not less than 120°, so as to avoid the second edge 312 bending angle being too large to increase the resistance to the airflow and affect the smooth flow of the airflow.

[0038] Here, the angle formed by the first side 311 and the second side 312 can be set to 120°, 130°, 135°, 140°, 145°, etc. Of course, it is not limited thereto, and the angle formed by the first side 311 and the second side 312 can also be set to other values.

[0039] See also Figure 2 and Figure 6 As shown, the hidden defogger air duct structure 100 has an air outlet grid hole 103, which is located outside the air guide outlet 102 and constitutes the final outlet of the hidden defogger air duct structure 100. The airflow flowing out of the air outlet grid hole 103 flows out of the air duct and blows toward the car glass.

[0040] Further, the number of the air outlet grid holes 103 is set to be multiple, and the multiple air outlet grid holes 103 are arranged at intervals in the left and right directions of the automobile glass (i.e., the width direction of the automobile) to evenly disperse the airflow to the automobile glass. Here, the number of the air outlet grid holes 103 is set to, for example, 10, 15, 20, 25, 30, etc. Of course, it is not limited to this, and the number of the air outlet grid holes 103 can be set according to actual needs.

[0041] Preferably, since the air inlet of the airflow channel 10 is arranged near the middle of the automobile glass, the airflow there is large, while the airflow to the sides is small, in order to evenly distribute the airflow, in the width direction of the automobile, the air outlet grid hole 103 near the middle of the automobile glass is arranged to have an air outlet area smaller than the air outlet grid holes 103 at other positions, so that there is more airflow on both sides.

[0042] For example, in the width direction of the car, the width of each of the six air outlet grid holes 103 near the middle of the car glass is set between 14mm-18mm, such as 14mm, 15mm, 16mm, 17mm, 18mm, etc.; the width of each of the other air outlet grid holes 103 is set between 20mm-24mm, such as 20mm, 21mm, 22mm, 23mm, 24mm. In this way, the air volume is distributed by setting air outlet grid holes 103 of different widths; of course, in other embodiments, the air volume can also be distributed by setting guide ribs or guide vanes with adjustable angles.

[0043] The present application also provides a car, comprising a front windshield and a hidden defogger duct structure 100 in any of the above embodiments, wherein the hidden defogger duct structure 100 is hidden by being blocked by the protruding upper edge of the instrument panel trim 3. In one embodiment, the hidden defogger duct structure 100 is blocked by the protruding upper edge of the instrument panel trim 3, specifically, the driver cannot see the air outlet grille hole 103 when the driver is in a normal driving position.

[0044] Through the above description of the specific embodiments, it can be known that the hidden defogger duct structure 100 provided by the present application has an air guide structure arranged at the airflow outlet 101, which extends to the airflow outlet 101 through the instrument panel trim 3 and is assembled and connected with the front shell 2 and / or the rear shell 1, so that fewer parts are used to form the air guide structure, which greatly reduces the adverse effects on the defogger and defrost effect caused by the assembly errors between the parts, and enhances the stability of the defogger and defrost effect. The present application uses fewer parts to form the guide surface, and the overall installation error is small, which reduces the situation where the guide surface changes due to assembly tolerances, especially the guide surface of the defogger airflow that finally flows out of the hidden defogger duct structure 100 is provided separately by the instrument panel trim 3, which further improves the accuracy of the guide surface and ensures the stability of the defogger airflow direction. Through CFD (Computational Fluid Dynamics) simulation analysis, the defogger and defroster performance of the present application is excellent and is less affected by the installation spacing. When the tolerance between the instrument panel 4 and the front windshield is within the range of ±3mm, the flow rate coverage of the defogger airflow changes little and the defogger performance consistency is good.

[0045] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A hidden defogger duct structure, used for defoggering automobile glass by blowing air, characterized in that: The hidden defogger air duct structure includes a front shell, a rear shell and an instrument panel trim. An airflow channel for conveying defogger airflow is formed between the front shell and the rear shell. An airflow outlet is provided at one end of the airflow channel close to the automobile glass. The instrument panel trim extends to the airflow outlet and is assembled and connected with the front shell and / or the rear shell to form an air guide structure.

2. The hidden demisting air duct structure according to claim 1 is characterized in that: The instrument panel trim includes an integrally formed main body and an air deflector portion, wherein the air deflector portion is disposed close to the automobile glass, the main body is relatively located below the air deflector portion, and an air guide outlet is formed between the air deflector portion and the main body.

3. The hidden demisting air duct structure according to claim 2 is characterized in that: The air guide plate portion is assembled and connected with the rear shell at a position close to the air flow outlet, and the main body portion is assembled and connected with the front shell at a position close to the air flow outlet.

4. The hidden demisting air duct structure according to claim 2, characterized in that: A dashboard is mounted on the main body, and a portion of the main body forming the air guide outlet includes at least one bent portion.

5. The hidden demisting air duct structure according to claim 4 is characterized in that: The bent portion includes a first side and a second side. In the air outlet direction of the air guide outlet, the second side is bent from the first side toward a direction close to the automobile glass.

6. The hidden demisting air duct structure according to claim 5, characterized in that: An angle formed by the first side and the second side is not less than 120°.

7. The hidden demisting air duct structure according to claim 5, characterized in that: The first side is parallel to the air guide plate portion.

8. The hidden demisting air duct structure according to claim 1, characterized in that: The hidden defogger air duct structure has a plurality of air outlet grid holes, and the plurality of air outlet grid holes are arranged at intervals along the width direction of the automobile; Wherein, in the width direction of the automobile, the air outlet grid holes near the middle of the automobile glass are arranged to have an air outlet area smaller than the air outlet grid holes at other positions.

9. The hidden demisting air duct structure according to claim 8, characterized in that: In the width direction of the car, the width of the air grille holes near the middle of the car glass is 14mm-18mm, and the width of the air grille holes at other positions is 20mm-24mm.

10. An automobile, characterized in that: It comprises a front windshield and a hidden defogger air duct structure as claimed in any one of claims 1 to 9, wherein the hidden defogger air duct structure is hidden by being shielded by the protruding upper edge of the instrument panel trim.

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