A mixing air component for improving the temperature control characteristics of an automotive air conditioner

Abstract

A mixing air component for improving the temperature control characteristics of an automotive air conditioner, which is installed in the hot and cold air intersection area inside the automotive air conditioner and is an integrally injection-molded mixing air frame structure. It includes a frame formed by left and right end plates and four longitudinal connecting rib plates. Each end of the frame is provided with a pivot shaft. The bottom of the frame is the cold air inlet side, and the front side of the frame is the warm air inlet side. Three warm air guiding tubes are arranged inside the frame, and the air inlets of the three warm air guiding tubes face the warm air inlet side. Transverse connecting rib plates are arranged on both sides of the air outlets of the three warm air guiding tubes, so as to form multiple cold air guiding areas inside the mixing air frame; a warm air guiding rib plate is arranged outside the air outlet of each of the three warm air guiding tubes; multiple foot blowing air guiding areas are formed between the three warm air guiding tubes, between the left warm air guiding tube and the left end plate, and between the right warm air guiding tube and the right end plate. A cold and warm air shunt rib plate and a cold air guiding rib plate are arranged in each foot blowing air guiding area. This mixing air component realizes the guiding and mixing of cold and warm air and meets the temperature requirements of the air outlet.

Description

Technical Field

[0001] The present invention relates to an automotive air conditioning structure, and particularly to a mixing air component for improving the temperature control characteristics of an automotive air conditioner. Background Art

[0002] With the continuous improvement of the material living standard, people's requirements for the driving and riding comfort of automobiles are becoming increasingly demanding, evolving from the basic requirements of simply keeping warm in winter and cool in summer in the past to the refined requirements of meeting different body parts, zoning temperature control, and all-season comfort. Therefore, relatively precise temperature requirements are put forward for the air outlet temperatures of each mode and each air outlet of the automotive air conditioner. For compact cars, due to the limited internal space, the volume of the air conditioner is made smaller, increasing the design difficulty of the air conditioner. Summary of the Invention

[0003] The present invention provides a mixing air component for improving the temperature control characteristics of an automotive air conditioner, which occupies a small space and can realize the guiding and mixing of cold and warm air, so that the mixed air meets the temperature requirements when flowing out of the air outlet.

[0004] The technical solution adopted by the present invention to solve the technical problems existing in the known technology is as follows:

[0005] A mixing air component for improving the temperature control characteristics of an automotive air conditioner, characterized in that: the mixing air component is installed in the cold and warm air intersection area inside the automotive air conditioner; the mixing air component is an integrally injection-molded mixing air frame structure, and the mixing air frame includes a frame part. The frame is composed of left and right end plates with the same structure and four longitudinal connecting rib plates respectively connecting the four corners of the two end plates. Two pivot shafts for connecting with the air conditioner unit housing are arranged at both ends of the frame. The bottom of the frame is the cold air inlet side, and the front side of the frame is the warm air inlet side. Inside the frame, three left, middle, and right warm air guiding pipes for guiding warm air to the head and defrost air outlets are arranged. The air inlets of the three warm air guiding pipes face the warm air inlet side. Transverse connecting rib plates connected to the two rear longitudinal connecting rib plates are arranged on both sides of the air outlets of the three warm air guiding pipes. The multiple transverse connecting rib plates form multiple cold air guiding areas inside the mixing air frame; warm air guiding rib plates for realizing the upward guiding of warm air are arranged outside the air outlets of the three warm air guiding pipes; multiple foot air guiding areas are formed between the three warm air guiding pipes, between the left warm air guiding pipe and the left end plate, and between the right warm air guiding pipe and the right end plate. Inside each foot air guiding area, a cold and warm air shunt rib plate and a cold air guiding rib plate are arranged.

[0006] Furthermore: Warm air blocking ribs are arranged at positions near the upper ends on both sides of the air inlets of the left warm air guiding pipe and at positions near the upper ends on both sides of the air inlet pipes of the right warm air guiding pipe.

[0007] The advantages and positive effects of the present invention are:

[0008] Through the various guiding structures arranged inside it, this air mixing component enables both cold air and warm air to be diverted and guided according to a set ratio, and then realizes the mixing of cold and warm air in different areas. The mixed air flows to the head, defrosting, and foot air outlets respectively, so that the temperature of each air outlet meets the design requirements in each mode, thereby improving the comfort of vehicle occupants and driving safety. The overall structure of this air mixing component is compact, reasonably designed, occupies a small space, and is convenient to be installed in the cold and warm air intersection area inside the automotive air conditioner. Brief Description of the Drawings

[0009] Figure 1 is a schematic three-dimensional structure of the present invention Figure 1 ;

[0010] Figure 2 is a schematic three-dimensional structure of the present invention Figure 2 ;

[0011] Figure 3 is a diagram of the air flow state when this air mixing component is installed in the air conditioner;

[0012] Figure 4 is a diagram of the air flow state when this air mixing component is not installed in the air conditioner.

[0013] In the figures: 1, left end plate; 2, right end plate; 3, longitudinal connecting rib plate; 4, pivot shaft; 5, left warm air guiding pipe; 6, middle warm air guiding pipe; 7, right warm air guiding pipe; 8, transverse connecting rib plate; 9, cold air guiding area; 10, warm air guiding rib plate; 11, foot air guiding area; 12, cold and warm air diversion rib plate; 13, cold air guiding rib plate; 14, warm air blocking rib. Detailed Description of the Invention

[0014] In order to further understand the content, features and effects of the present invention, the following embodiments are exemplified and described in detail with reference to the accompanying drawings:

[0015] Please refer to Figures 1-4 , a kind of air mixing component for improving the temperature control characteristics of an automotive air conditioner, and its innovation points are:

[0016] The air mixing component is installed in the cold and warm air intersection area inside the automotive air conditioner; the air mixing component is an integrally injection-molded air mixing frame structure. The air mixing frame includes a frame part, and the frame is composed of a left end plate 1, a right end plate 2 with the same structure, and four longitudinal connecting rib plates 3 connecting the four corners of the two end plates respectively. Two pivot shafts 4 for connecting with the air conditioner unit housing are arranged at both ends of the frame. The bottom of the frame is the cold air inlet side, and the front side of the frame is the warm air inlet side. A left warm air guide pipe 5, a middle warm air guide pipe 6, and a right warm air guide pipe 7 are arranged inside the frame. The functions of the three warm air guide pipes are: guiding the warm air to the head air outlet and the defrost air outlet. Among them, the left warm air guide pipe corresponds to the left side head air outlet, the right warm air guide pipe corresponds to the right side head air outlet, and the middle warm air guide pipe corresponds to the two middle head air outlets. The flow cross-sectional area of the left warm air guide pipe is equal to that of the right warm air guide pipe, and the flow cross-sectional area of the middle warm air guide pipe is larger than that of the left or right warm air guide pipe. The air inlets of the three warm air guide pipes face the warm air inlet side. Transverse connecting rib plates 8 connected to the two rear longitudinal connecting rib plates are arranged on both sides of the air outlets of the three warm air guide pipes. The multiple transverse connecting rib plates form multiple cold air guide areas 9 inside the air mixing frame. Warm air guide rib plates 10 for realizing upward guiding of warm air are arranged outside the air outlets of the three warm air guide pipes. Specifically, the warm air guide rib plates are inclined outward, and a triangular area is formed between the inner side surface of the warm air guide rib plate and the end surface where the air outlet of the corresponding warm air guide pipe is located, so as to ensure that the warm air discharged from the air outlet of the warm air guide pipe changes its direction and moves upward. In this way, the cold air guided upward through the cold air guide area is mixed with the warm air guided out by the warm air guide pipe in the mixing area 1, and the mixed air is blown to the head air outlet and the defrost air outlet.

[0017] Multiple foot air guide areas 11 are formed between the three warm air guide pipes, between the left warm air guide pipe and the left end plate, and between the right warm air guide pipe and the right end plate. A cold and warm air diversion rib plate 12 and a cold air guide rib plate 13 are arranged in each foot air guide area. The function of the cold air guide rib plate is: guiding part of the cold air to the direction of the foot air duct; the function of the cold and warm air diversion rib plate is: separating the cold air coming in from the cold air side of the cold and warm air door from the warm air coming in from the air mixing component, transferring the air mixing area to the foot passage, and mixing the cold and warm air in the mixing area 2, ensuring the uniformity requirement of the temperature at each foot outlet.

[0018] In the above air mixing component structure, warm air blocking ribs 14 are arranged at the positions near the upper ends on both sides of the air inlets of the left warm air guide pipe and at the positions near the upper ends on both sides of the air inlet pipes of the right warm air guide pipe. The function of setting the warm air blocking ribs is: in the foot blowing mode and the foot / defrost blowing mode, by adding warm air blocking ribs on both sides of the structure, reducing the warm air intake on the left and right sides of the air mixing mechanism, reducing the temperature difference between the side head and the feet, and making the temperature difference between the side head and the feet meet the requirements.

[0019] Installing this air mixing component in the cold and warm air intersection area of the automotive air conditioner can improve the performance in some aspects compared to the automotive air conditioner unit without the air mixing component:

[0020] 1. Improves the temperature uniformity of the left and right temperature zones, and controls the air outlet temperatures of the left and right air outlets within the error requirements.

[0021] 2. Controls the temperature difference between the air outlet temperature of the head blowing, the air outlet temperature of the foot blowing, and the air outlet temperature of the defrosting within the temperature requirements.

Claims

1. A mixing air component for improving the temperature control characteristics of an automotive air conditioner, characterized in that: the mixing air component is installed in the cold and warm air intersection area inside the automotive air conditioner; the mixing air component is an integrally injection-molded mixing air frame structure, and the mixing air frame includes a frame part. The frame is composed of left and right end plates with the same structure and four longitudinal connecting rib plates respectively connecting the four corners of the two end plates. Two pivot shafts for connecting with the air conditioner unit housing are arranged at both ends of the frame. The bottom of the frame is the cold air inlet side, and the front side of the frame is the warm air inlet side. Three left, middle, and right warm air guiding pipes for guiding warm air to the head blowing and defrosting air outlets are arranged inside the frame. The air inlets of the three warm air guiding pipes face the warm air inlet side. Transverse connecting rib plates connected to the two rear longitudinal connecting rib plates are arranged on both sides of the air outlets of the three warm air guiding pipes. A plurality of transverse connecting rib plates form a plurality of cold air guiding areas inside the mixing air frame; warm air guiding rib plates for realizing upward guiding of warm air are arranged outside the air outlets of the three warm air guiding pipes respectively; a plurality of foot blowing air guiding areas are formed between the three warm air guiding pipes, between the left warm air guiding pipe and the left end plate, and between the right warm air guiding pipe and the right end plate. A cold and warm air shunting rib plate and a cold air guiding rib plate are arranged in each foot blowing air guiding area; the cold air guiding rib plate is used for guiding part of the cold air in the direction of the foot blowing air duct; the cold and warm air shunting rib plate is used for separating the cold air coming in from the cold air side of the cold and warm air door from the warm air coming in from the mixing air component and transferring the mixing area to the foot blowing channel.

2. The mixing air component for improving the temperature control characteristics of an automotive air conditioner according to claim 1, characterized in that: warm air blocking ribs are arranged at positions near the upper ends on both sides of the air inlets of the left warm air guiding pipe and at positions near the upper ends on both sides of the air inlet pipes of the right warm air guiding pipe.

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