Air conditioning surface blowing duct and vehicle

Abstract

The embodiment of the present invention discloses an air-conditioning face-blowing duct and a vehicle, wherein the face-blowing duct is an integrally formed structure; the face-blowing duct includes: a first side face-blowing duct, a second side face-blowing duct and a central face-blowing duct; the first side face-blowing duct is connected to the first end of the central face-blowing duct; the second side face-blowing duct is connected to the second end of the central face-blowing duct; the first side face-blowing duct, the second side face-blowing duct and the central face-blowing duct each include at least one air outlet. The embodiment of the present invention reasonably adjusts the structure of the air-conditioning face-blowing duct to form an integrally formed structure of the first side face-blowing duct, the second side face-blowing duct and the central face-blowing duct, thereby reducing the number of parts, reducing the connection process, reducing the weight of parts, reducing the production cost, and improving the sound absorption performance of the air-conditioning face-blowing duct. In addition, the face-blowing duct is formed by a micro-foaming process to achieve weight reduction of components, making a very important contribution to the lightweighting of the entire vehicle.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of vehicle technology, and in particular to an air-conditioning surface air duct and a vehicle. Background Art

[0002] Under the current policy of energy conservation and emission reduction in the automotive industry and the vigorous development of new energy vehicles, automobile lightweight technology has become a research hotspot at home and abroad, which can effectively reduce fuel consumption, reduce emissions, and improve energy utilization and driving range. How to achieve lightweight products while ensuring product performance is a key research topic.

[0003] In addition, air ducts need to be set up in existing automobile air-conditioning equipment. Traditional air-conditioning blowing ducts in dashboards are mainly connected by multiple sections of blow-molded air ducts. Not only does it have a long production cycle, but it also has disadvantages such as complex installation and increased connection steps. Summary of the invention

[0004] The embodiments of the present invention provide an air-conditioning surface air duct and a vehicle, which can reduce the number of parts, reduce the connection process, reduce the weight of parts, and reduce production costs.

[0005] In a first aspect, an embodiment of the present invention provides an air conditioner blowing face air duct, wherein the blowing face air duct is an integrally formed structure;

[0006] The blowing surface air duct comprises: a first side blowing surface air duct, a second side blowing surface air duct and a central blowing surface air duct;

[0007] The first side blowing surface air duct is connected to the first end of the central blowing surface air duct; the second side blowing surface air duct is connected to the second end of the central blowing surface air duct; the first side blowing surface air duct, the second side blowing surface air duct and the central blowing surface air duct each include at least one air outlet;

[0008] The surface blowing air duct is formed by adopting a micro-foaming process.

[0009] Optionally, the air duct thickness of the surface-blowing air duct is 0.2-3 mm; and the foaming rate of the surface-blowing air duct is 10%-30%.

[0010] Optionally, the first side-blowing air duct includes a first side air outlet; the second side-blowing air duct includes a second side air outlet; and the central-blowing air duct includes a central first side air outlet and a central second side air outlet.

[0011] Optionally, the shape of the radial cross section of the air outlet is a polygon with 4 or more sides.

[0012] Optionally, the first side-blowing surface air duct, the second side-blowing surface air duct and the central-blowing surface air duct each include at least one positioning claw; the positioning claw is used to be fixed to the instrument panel.

[0013] Optionally, the micro-foaming process comprises:

[0014] 80 to 120 parts of high-density polyethylene, 1 to 10 parts of a foaming agent, 40 to 60 parts of modified high-density polyethylene and a masterbatch are mixed to form a raw material; and the raw materials are mixed and stirred by a raw material mixer;

[0015] The stirred raw materials are placed in a blow molding device for mold closing, blow molding and shaping.

[0016] Optionally, the raw materials are stirred in the raw material mixer for 5 to 15 minutes at a stirring temperature of 25°C ± 5°C.

[0017] Optionally, the die gap of the blow molding equipment is 5-10 mm; the barrel temperature of the blow molding equipment is 150-220° C.; the mold closing pressure of the blow molding equipment is 300-500 bar; the blowing pressure of the blow molding equipment is 0.5-5 bar;

[0018] The blow molding screw of the blow molding equipment is one of a separation type screw, a barrier type screw and a split type screw.

[0019] Optionally, the foaming agent is an organic foaming agent or an inorganic foaming agent;

[0020] The inorganic foaming agent is one of carbonates, bicarbonates or nitrites; the organic foaming agent is one of sulfonylhydrazine foaming agents, nitroso foaming agents, azo foaming agents and triazole compounds.

[0021] In a second aspect, an embodiment of the present invention provides a vehicle, comprising any air-conditioning surface air duct as described in the first aspect.

[0022] The embodiment of the present invention provides an air-conditioning face-blowing duct and a vehicle, wherein the face-blowing duct is an integrally formed structure; the face-blowing duct includes: a first side face-blowing duct, a second side face-blowing duct and a central face-blowing duct; the first side face-blowing duct is connected to the first end of the central face-blowing duct; the second side face-blowing duct is connected to the second end of the central face-blowing duct; the first side face-blowing duct, the second side face-blowing duct and the central face-blowing duct each include at least one air outlet. The embodiment of the present invention reasonably adjusts the structure of the air-conditioning face-blowing duct to form an integrally formed structure of the first side face-blowing duct, the second side face-blowing duct and the central face-blowing duct, thereby reducing the number of parts, reducing the connection process, reducing the weight of parts, reducing the production cost, and improving the sound absorption performance of the air-conditioning face-blowing duct. In addition, the face-blowing duct is formed by a micro-foaming process to achieve weight reduction of components, making a very important contribution to the lightweighting of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a structural schematic diagram of an air-conditioning surface air duct provided by an embodiment of the present invention;

[0025] Figure 2 It is a structural schematic diagram of a vehicle provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0027] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. It should be noted that the directional words such as "upper", "lower", "left", "right" and the like described in the embodiments of the present invention are described at the angles shown in the accompanying drawings and should not be understood as limitations on the embodiments of the present invention. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is formed "on" or "under" another element, it can not only be directly formed "on" or "under" another element, but also indirectly formed "on" or "under" another element through an intermediate element. The terms "first", "second", etc. are only used for descriptive purposes and do not represent any order, quantity or importance, but are only used to distinguish different components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances.

[0028] The term “including” and its variations used in the present invention are open inclusions, that is, “including but not limited to.” The term “based on” means “based at least in part on.” The term “one embodiment” means “at least one embodiment.”

[0029] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0030] Figure 1 Schematic diagram of the structure of an air conditioning surface air duct provided by an embodiment of the present invention. Figure 1As shown, the blowing face air duct is an integrally formed structure, and the blowing face air duct includes: a first side blowing face air duct 110, a second side blowing face air duct 120 and a central blowing face air duct 130. The first side blowing face air duct 110 is connected to a first end of the central blowing face air duct 130; the second side blowing face air duct 120 is connected to a second end of the central blowing face air duct 130; the first side blowing face air duct 110, the second side blowing face air duct 120 and the central blowing face air duct 130 each include at least one air outlet; the blowing face air duct is formed by a micro-foaming process.

[0031] Specifically, the air conditioning surface air duct includes a first side surface air duct 110, a second side surface air duct 120 and a central surface air duct 130. The first side surface air duct 110 is connected to a first end of the central surface air duct 130, and the second side surface air duct 120 is connected to a second end of the central surface air duct 130. By reasonably adjusting the structure of the air conditioning surface air duct, the first side surface air duct 110, the second side surface air duct 120 and the central surface air duct 130 are integrated together to form an integrated structure. In the same process, the first side surface air duct 110 is formed at the same time. 0, the second side blowing surface air duct 120 and the central blowing surface air duct 130, without the need to form the first side blowing surface air duct 110, the central blowing surface air duct 130 and the second side blowing surface air duct 120 respectively through multi-stage blow molding and then connect them in sequence, effectively reducing the complexity of the process. Compared with the traditional air conditioning blowing surface air duct in the instrument panel, which requires the independent first side blowing surface air duct 110, the second side blowing surface air duct 120 and the central blowing surface air duct 130 to be integrated together, this embodiment can also reduce the number of parts, reduce the connection process, simplify the installation steps, and shorten the production cycle. In addition, when forming the integrated air conditioning blowing surface air duct, microporous foaming technology is used. Microporous foaming technology can complete the foaming of small bubbles inside the parts while the plastic parts are being formed, and introduce a porous structure into the solid plastic parts, thereby reducing the weight of the parts. The air-conditioning blowing face duct provided by the embodiment of the present invention is formed by a micro-foaming process, so that there is a porous structure in the duct wall of the blowing face duct, thereby reducing the weight of the blowing face duct, which can reduce the weight of the parts, reduce the production cost, and achieve lightweighting of the air-conditioning blowing face duct. Among them, the first side blowing face duct 110 is longer than the second side blowing face duct 120, which can improve the condensation effect of the air-conditioning blowing face duct in the instrument panel.

[0032] The technical solution in the embodiment of the present invention is that the blowing face air duct is an integrally formed structure; the blowing face air duct includes: a first side blowing face air duct, a second side blowing face air duct and a central blowing face air duct; the first side blowing face air duct is connected to the first end of the central blowing face air duct; the second side blowing face air duct is connected to the second end of the central blowing face air duct; the first side blowing face air duct, the second side blowing face air duct and the central blowing face air duct each include at least one air outlet. The embodiment of the present invention reasonably adjusts the structure of the air-conditioning blowing face air duct to form an integrally formed structure of the first side blowing face air duct, the second side blowing face air duct and the central blowing face air duct, thereby reducing the number of parts, reducing the connection process, reducing the weight of parts, reducing the production cost, and improving the sound absorption performance of the air-conditioning blowing face air duct. In addition, the blowing face air duct is formed by a micro-foaming process to achieve weight reduction of components, making a very important contribution to the lightweighting of the entire vehicle.

[0033] The above is the core idea of ​​the present invention. The technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the 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.

[0034] Optionally, the thickness of the surface-blowing air duct is 0.2-3 mm; and the foaming rate of the surface-blowing air duct is 10%-30%.

[0035] Specifically, the air-conditioning surface air duct is produced by the micro-foaming process, the duct thickness of the air-conditioning surface air duct is set to 0.2-3mm, and the foaming rate of the air-conditioning surface air duct is set to 10%-30%. For the air-conditioning surface air duct of the same thickness, while reducing the weight of the air-conditioning surface air duct, it can also reduce the amount of raw materials used, which is beneficial to saving materials and energy.

[0036] Optionally, the first side-blowing air duct 110 includes a first side air outlet 1101 ; the second side-blowing air duct 120 includes a second side air outlet 1201 ; and the central-blowing air duct 130 includes a central first side air outlet 1301 and a central second side air outlet 1302 .

[0037] Specifically, continue to refer to Figure 1 , the first side blowing surface air duct 110, the second side blowing surface air duct 120 and the central blowing surface air duct 130 each include at least one air outlet. Among them, the first side blowing surface air duct 110 includes a first side air outlet 1101; the second side blowing surface air duct 120 includes a second side air outlet 1201; the central blowing surface air duct 130 includes a central first side air outlet 1301 and a central second side air outlet 1302. Exemplarily, the first side blowing surface air duct 110 and the second side blowing surface air duct 120 each may include one or more air outlets, and the central blowing surface air duct 130 may include two or more air outlets. Here, Figure 1The figure is only an example and is not intended to be limiting. The number of air outlets is determined by the structure and performance of the actual air duct of the air conditioner.

[0038] Optionally, the shape of the radial cross section of the air outlet is a polygon with four or more sides.

[0039] Specifically, continue to refer to Figure 1 The shape of the radial cross-section of the air outlet of the air-conditioning blowing surface air duct is a polygon with a side number greater than or equal to 4, which can increase the air inlet and outlet area of ​​the air-conditioning blowing surface air duct and realize the personalized setting of the air-conditioning outlet to meet different vehicle models and different design requirements.

[0040] Optionally, the first side-blowing surface air duct 110 , the second side-blowing surface air duct 120 and the central-blowing surface air duct 130 each include at least one positioning claw 140 ; ​​the positioning claw 140 is used to be fixed to the instrument panel.

[0041] Specifically, the first side blowing surface air duct 110, the second side blowing surface air duct 120 and the central blowing surface air duct 130 each include at least one positioning claw 140, and the positioning claw 140 is integrated in the one-piece molded structure of the first side blowing surface air duct 110, the second side blowing surface air duct 120 and the central blowing surface air duct 130. The positioning claw 140 is used to be fixed to the instrument panel to fix the air conditioning blowing surface air duct in the vehicle.

[0042] It should be noted that the structure of an air-conditioning face air duct formed by a micro-foaming process provided in an embodiment of the present invention, compared with the traditional production process of air-conditioning face air ducts, can produce air-conditioning face air ducts that meet the performance requirements of vehicle use by replacing the raw materials for producing the air-conditioning face air ducts and adjusting the parameters of the production process. The equipment for producing the air-conditioning face air ducts does not require investment in new equipment, and traditional air-conditioning face air duct production equipment can be used. At the same time, it can also reduce the use of raw materials and reduce the production cost of the air-conditioning face air ducts.

[0043] Optionally, the micro-foaming process includes: mixing 80 to 120 parts of high-density polyethylene, 1 to 10 parts of foaming agent, 40 to 60 parts of modified high-density polyethylene and masterbatch to form raw materials; mixing and stirring the raw materials through a raw material mixer; placing the stirred raw materials into a blow molding device for mold closing, blow molding and shaping.

[0044] Specifically, the air-conditioning blowing face air duct is formed by a micro-foaming process, and 80 to 120 parts of high-density polyethylene, 1 to 10 parts of foaming agent, and 40 to 60 parts of modified high-density polyethylene are selected and weighed, and a small amount of masterbatch is added. The mixed raw materials are fully stirred and mixed on the raw material mixer, and then the evenly stirred raw materials are placed in the blow molding equipment for mold closing, blow molding and shaping. The barrel-shaped micro-foamed air-conditioning blowing face air duct obtained during the blow molding process needs to be manually sealed. Among them, the micro-foaming process selects modified high-density polyethylene as one of the raw materials. The modified high-density polyethylene can increase the viscosity of the raw materials and increase the solubility of the raw materials in the gas, and introduce a porous structure into the air duct wall of the solid air-conditioning blowing face air duct, which is more conducive to the foaming effect. In addition, in the process of selecting raw materials, choosing a reasonable proportion for mixing can improve the effect of the micro-foaming process. For example, appropriately increasing the proportion of high molecular weight modified high-density polyethylene can ensure the melt strength of the raw material. On the other hand, low molecular weight modified high-density polyethylene will also exist in the raw material, which can ensure the fluidity of the raw material.

[0045] Optionally, the stirring time of the raw materials in the raw material mixer is 5 to 15 minutes, and the stirring temperature is 25°C ± 5°C. After stirring for 5 to 15 minutes, the raw materials form a uniformly mixed material, which is conducive to the smooth foaming of the raw materials and makes the foaming of the raw materials more uniform. The stirring temperature is room temperature, which can generally be selected as 25°C ± 5°C. Under the premise of ensuring the smooth foaming of the raw materials, there is no need to set up a constant temperature device to control the preparation process of the raw materials, thereby reducing the process preparation cost.

[0046] Optionally, the die gap of the blow molding equipment is 5 to 10 mm; the barrel temperature of the blow molding equipment is 150 to 220°C; the mold closing pressure of the blow molding equipment is 300 to 500 bar; the blowing pressure of the blow molding equipment is 0.5 to 5 bar; the blow molding screw of the blow molding equipment is one of a separation screw, a barrier screw and a diversion screw.

[0047] Specifically, the blow molding equipment can continue to use the blow molding equipment in the production process of the traditional air-conditioning blowing face air duct without adding new blow molding equipment. However, an additional air pressure testing device is required to facilitate the adjustment of the blowing pressure. Among them, the barrel temperature of the blow molding equipment is 150-220°C, which is lower than the barrel temperature in the production process of the traditional air-conditioning blowing face air duct. The blowing pressure of the blow molding equipment is 0.5-5bar, which is lower than the blowing pressure in the production process of the traditional air-conditioning blowing face air duct. It can reduce energy consumption accordingly, reduce damage to the blow molding equipment during the blow test, and increase the service life of the blow molding equipment. The blow molding screw of the blow molding equipment is one of a separation type screw, a barrier type screw and a diversion type screw. This embodiment does not specifically limit this. Optionally, the blow molding screw of the blow molding equipment can select a separation type screw. The separation type screw can mold some plastics with high viscosity and poor thermal stability, and has a good color mixing effect. The appearance of the molded product is uniform and consistent, which is conducive to forming a uniform and beautiful blowing surface air duct, and can improve the plasticizing ability of the above-mentioned raw materials without increasing the screw speed, thereby improving the stability and reliability of the formed air-conditioning blowing surface air duct.

[0048] Optionally, the foaming agent is an organic foaming agent or an inorganic foaming agent; the inorganic foaming agent is one of carbonates, bicarbonates or nitrites; the organic foaming agent is one of sulfonylhydrazine foaming agents, nitroso foaming agents, azo foaming agents, and triazole compounds.

[0049] Specifically, the foaming agent can make the material pore-forming, has high surface activity, can effectively reduce the surface tension of the material, and form tiny bubbles. The foaming agent is divided into an organic foaming agent or an inorganic foaming agent. For example, the foaming agent can be a carbonate foaming agent, which can release gases such as carbon dioxide after heating and decomposition, and can form tiny bubble holes in the integrated structure of the air duct of the air conditioner.

[0050] Based on the same inventive concept, an embodiment of the present invention further provides a vehicle. Figure 2 is a schematic diagram of the structure of a vehicle provided by an embodiment of the present invention, such as Figure 2 As shown, the vehicle includes the air-conditioning face-blowing air duct provided by any embodiment of the present invention. Therefore, the vehicle provided by the embodiment of the present invention has the corresponding beneficial effects of the air-conditioning face-blowing air duct provided by the embodiment of the present invention, which will not be repeated here.

[0051] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An air-conditioning face-blowing air duct, characterized in that: The surface blowing air duct is an integrally formed structure; The blowing surface air duct comprises: a first side blowing surface air duct, a second side blowing surface air duct and a central blowing surface air duct; The first side blowing surface air duct is connected to the first end of the central blowing surface air duct; the second side blowing surface air duct is connected to the second end of the central blowing surface air duct; the first side blowing surface air duct, the second side blowing surface air duct and the central blowing surface air duct each include at least one air outlet; The surface blowing air duct is formed by a micro-foaming process; The micro-foaming process comprises: 80 to 120 parts of high-density polyethylene, 1 to 10 parts of a foaming agent, 40 to 60 parts of modified high-density polyethylene and a masterbatch are mixed to form a raw material; and the raw materials are mixed and stirred by a raw material mixer; Putting the stirred raw materials into a blow molding device for mold closing, blow molding and shaping; The die gap of the blow molding equipment is 5-10 mm; the barrel temperature of the blow molding equipment is 150-220° C.; the mold closing pressure of the blow molding equipment is 300-500 bar; the blowing pressure of the blow molding equipment is 0.5-5 bar; The blow molding screw of the blow molding equipment is one of a separation type screw, a barrier type screw and a split type screw.

2. The air conditioning surface air duct according to claim 1, characterized in that: The thickness of the surface blowing air duct is 0.2-3 mm; the foaming rate of the surface blowing air duct is 10%-30%.

3. The air conditioning surface air duct according to claim 1, characterized in that: The first side-blowing air duct includes a first side air outlet; the second side-blowing air duct includes a second side air outlet; and the central-blowing air duct includes a central first side air outlet and a central second side air outlet.

4. The air conditioning surface air duct according to claim 1, characterized in that: The radial cross section of the air outlet is in the shape of a polygon with four or more sides.

5. The air conditioning surface air duct according to claim 1, characterized in that: The first side-blowing surface air duct, the second side-blowing surface air duct and the central-blowing surface air duct each include at least one positioning claw; the positioning claw is used to be fixed to the instrument panel.

6. The air conditioning surface air duct according to claim 1, characterized in that: The stirring time of the raw materials in the raw material mixer is 5 to 15 minutes, and the stirring temperature is 25°C ± 5°C.

7. The air conditioning surface air duct according to claim 1, characterized in that: The foaming agent is an organic foaming agent or an inorganic foaming agent; The inorganic foaming agent is one of carbonates, bicarbonates or nitrites; the organic foaming agent is one of sulfonylhydrazine foaming agents, nitroso foaming agents, azo foaming agents and triazole compounds.

8. A vehicle, characterized in that: It comprises the air conditioning surface air duct as described in any one of claims 1-7.

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