Multi-temperature-zone automobile air conditioner distribution box

Abstract

The utility model belongs to the technical field of automobile air conditioners, and relates to a multi-temperature-zone automobile air conditioner distribution box which comprises a warm air distribution box left middle shell and a warm air distribution box right middle shell, the warm air distribution box left middle shell and the warm air distribution box right middle shell are buckled to form a rear flow channel, a rear mixing air door is arranged at one end of the rear flow channel, and a rear mixing air door is arranged at the other end of the rear flow channel. One end of the rear flow channel is provided with a rear face blowing air door and a rear foot blowing air door, the other end of the rear flow channel is provided with a rear face blowing air door and a rear foot blowing air door, a partition plate is arranged in the rear flow channel and divides the rear flow channel into a rear upper flow channel and a rear lower flow channel in the airflow direction, an outlet of the rear upper flow channel is opposite to the rear face blowing air door, and an outlet of the rear lower flow channel is opposite to the rear foot blowing air door; when the rear mixing air door is located at the non-full-cold position and the non-full-hot position, more cold air passes through the rear upper flow channel, more hot air passes through the rear lower flow channel, the air outlet temperature of the rear flow channel is layered, the air outlet temperature of the rear row blowing face is lower than the air outlet temperature of the rear row blowing foot, and the comfort of passengers in the rear row area is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile air conditioners and relates to a multi-temperature zone automobile air conditioner distribution box. Background Art

[0002] The traditional multi-temperature zone automobile air-conditioning distribution box structure is divided into a left shell of the warm air distribution box, a left middle shell of the warm air distribution box, a right middle shell of the warm air distribution box, and a right shell of the warm air distribution box, forming three independent air flow channels: left flow channel, rear flow channel, and right flow channel. Then, the opening of the cold and warm air doors of each flow channel is used to adjust the ratio of cold and hot air in each area to achieve temperature regulation in the three spatial areas of the main driver / rear seat / co-driver, thereby realizing multi-temperature zone automobile air conditioning.

[0003] In the traditional independent rear flow duct, the temperature of the rear face air outlet and the rear foot air outlet is adjusted by adjusting the opening of the rear mixing air door. The rear mixing air door is far away from the rear face air outlet and the rear foot air outlet. When the rear mixing small opening is adjusted, the cold air and hot air in the rear flow duct can be mixed more fully, but the temperature of the rear face air outlet and the rear foot air outlet are not stratified, resulting in the temperature of the rear face air outlet and the temperature of the rear foot air outlet being the same. In the face-foot mode, the rear mixing air door is in a non-full cold / non-full hot position, the rear face air outlet temperature is higher than the front face air outlet temperature, and the rear foot air outlet temperature is lower than the front foot air outlet temperature, which cannot meet the temperature difference requirements of the face air outlet and the foot air outlet in the rear area of ​​the whole vehicle. Since the human face is more sensitive to temperature than the feet, the passengers in the rear area can obviously feel that their faces are hot and their feet are cold, affecting the comfort of the rear passengers. Utility Model Content

[0004] In view of this, the purpose of the present invention is to achieve the temperature difference requirement between the face air outlet and the foot air outlet in the rear area, and to provide a multi-temperature zone automobile air conditioning distribution box.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] A multi-temperature zone automobile air-conditioning distribution box comprises a left middle shell body of a warm air distribution box and a right middle shell body of a warm air distribution box, wherein the left middle shell body of the warm air distribution box and the right middle shell body of the warm air distribution box are buckled together to form a rear flow channel, a rear mixing air door is arranged at one end of the rear flow channel, and a rear blowing face air door and a rear blowing foot air door are arranged at the other end, a partition is arranged in the rear flow channel, and the rear flow channel is divided into a rear upper flow channel and a rear lower flow channel along the air flow direction, the outlet of the rear upper flow channel is opposite to the rear blowing face air door, and the outlet of the rear lower flow channel is opposite to the rear blowing foot air door; when the rear mixing air door is in a non-full cold and non-full hot position, more cold air passes through the rear upper flow channel, and more hot air passes through the rear lower flow channel, so that the outlet air temperature of the rear flow channel is stratified, and the outlet air temperature of the rear row blowing face is lower than the outlet air temperature of the rear row blowing foot.

[0007] Furthermore, the partition includes a first partition, a second partition, a third partition, and a fourth partition; the first partition and the second partition are fixed on the left middle shell of the warm air distribution box, and the third partition and the fourth partition are fixed on the right middle shell of the warm air distribution box; after the first partition and the third partition are buckled together, the rear flow channel is divided into a rear upper flow channel and a rear lower flow channel; after the second partition and the fourth partition are buckled together, a rectangular outlet is formed at the end of the rear upper flow channel and the rear lower flow channel.

[0008] Furthermore, the first partition plate and the third partition plate are located at 50%±20% of the overall width of the rear flow channel.

[0009] Furthermore, the distance between the second partition plate and the fourth partition plate and the entrance of the rear air outlet is 35 mm to 60 mm.

[0010] The beneficial effects of the utility model are:

[0011] The utility model divides the rear flow channel into an upper and lower layer by adding a partition in the rear flow channel. When the rear mixing air door is in a non-fully cold and non-fully hot position, more cold air passes through the rear upper flow channel, and more hot air passes through the rear lower flow channel, so that the air outlet temperature of the rear flow channel is stratified, and the rear face-blowing air outlet temperature is lower than the rear foot-blowing air outlet temperature. This can effectively solve the problem of no temperature difference between the face-blowing air outlet and the foot-blowing air outlet in the rear area of ​​the whole vehicle in the face-blowing-foot-blowing mode. At the same time, the linearity of the rear air outlet can be adjusted by changing the position of the partition in the rear flow channel as needed, thereby improving the comfort of the passengers in the rear area.

[0012] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, in which:

[0014] Figure 1 It is a structural schematic diagram of the multi-temperature zone automobile air-conditioning distribution box in the utility model.

[0015] Figure 2 It is a schematic diagram of the left middle shell of the warm air distribution box in the present utility model.

[0016] Figure 3 It is a schematic diagram of the right middle shell of the warm air distribution box in the utility model.

[0017] Figure 4This is a schematic diagram of the position of the partition in the rear flow channel of the utility model.

[0018] Figure 5 Schematic diagram of air flow direction in the present invention, wherein the solid line represents the cold air passing through the evaporator core, and the dotted line represents the hot air after passing through the heater core.

[0019] Figure markings: 1-evaporator core; 2-rear mixing damper; 3-left middle shell of warm air distribution box; 4-rear face damper; 5-rear foot damper; 6-warm air core; 7-air heating PTC; 8-rear underflow channel; 9-first partition; 10-second partition; 11-third partition; 12-fourth partition; 13-right middle shell of warm air distribution box. DETAILED DESCRIPTION

[0020] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0021] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present utility model. In order to better illustrate the embodiments of the present utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0022] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] See also Figures 1 to 5, which is a multi-temperature zone automobile air-conditioning distribution box, including a left middle shell 3 of a warm air distribution box and a right middle shell 13 of a warm air distribution box. The left middle shell 3 of the warm air distribution box and the right middle shell 13 of the warm air distribution box are buckled together to form a rear flow channel, one end of the rear flow channel is provided with a rear mixing damper 2, and the other end is provided with a rear blowing face damper 4 and a rear blowing foot damper 5. The cold air cooled by the evaporator core 1 and the hot air heated by the warm air core 6 and the air-heating PTC 7 are regulated by the rear mixing damper 2, and a part of them flows out through the rear dark flow channel 8, and the other part flows into the rear blowing foot air outlet and the rear blowing face air outlet through the rear flow channel. The air outlet of the rear blowing foot air outlet and the rear blowing face air outlet is controlled by the rear blowing foot damper 5 and the rear blowing face damper 4 respectively.

[0024] Among them, a partition is arranged in the rear flow channel, which divides the rear flow channel into a rear upper flow channel and a rear lower flow channel along the air flow direction. The outlet of the rear upper flow channel is opposite to the rear blowing face air door 4, and the outlet of the rear lower flow channel is opposite to the rear blowing foot air door 5; when the rear mixing air door 2 is in a non-full cold and non-full hot position, more cold air passes through the rear upper flow channel, and more hot air passes through the rear lower flow channel, so that the outlet air temperature of the rear flow channel is stratified, and the outlet air temperature of the rear blowing face is lower than the outlet air temperature of the rear blowing foot.

[0025] In this embodiment, the partition includes a first partition 9, a second partition 10, a third partition 11, and a fourth partition 12; the first partition 9 and the second partition 10 are fixedly arranged on the left middle shell 3 of the warm air distribution box, and the third partition 11 and the fourth partition 12 are fixedly arranged on the right middle shell 13 of the warm air distribution box; the first partition 9 and the third partition 11 are located at the center of the width of the rear flow channel, dividing the rear flow channel into two upper and lower layers. After the first partition 9 and the third partition 11 are buckled together, the rear flow channel is divided into a rear upper flow channel and a rear lower flow channel; the distance between the second partition 10 and the fourth partition 12 and the inlet ends of the rear foot air outlet and the rear face air outlet is 35mm to 60mm. After the second partition 10 and the fourth partition 12 are buckled together, a rectangular outlet is formed at the end of the rear upper flow channel and the rear lower flow channel, and the cold air and hot air after stratification in the rear flow channel are respectively transported to the vicinity of the rear face air outlet and the rear foot air outlet, so that the cold air is blown out from the rear face air outlet and the hot air is blown out from the rear foot air outlet, thereby realizing the stratification of the air outlet temperatures of the rear face air outlet and the rear foot air outlet, and improving the comfort of passengers in the rear area.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A multi-temperature zone automobile air conditioning distribution box, comprising a left middle shell of a warm air distribution box and a right middle shell of a warm air distribution box, wherein the left middle shell of the warm air distribution box and the right middle shell of the warm air distribution box are buckled to form a rear flow channel, a rear mixing damper is provided at one end of the rear flow channel, and a rear face damper and a rear foot damper are provided at the other end, characterized in that: A partition is provided in the rear flow channel to divide the rear flow channel into a rear upper flow channel and a rear lower flow channel along the airflow direction. The outlet of the rear upper flow channel is opposite to the rear face air door, and the outlet of the rear lower flow channel is opposite to the rear foot air door. When the rear mixing damper is in a non-full-cold and non-full-hot position, more cold air passes through the rear upper flow channel, and more hot air passes through the rear lower flow channel, so that the outlet air temperature of the rear flow channel is stratified, and the outlet air temperature of the rear blowing surface is lower than the outlet air temperature of the rear blowing foot.

2. The multi-temperature zone automobile air conditioning distribution box according to claim 1 is characterized in that: The partition includes a first partition, a second partition, a third partition, and a fourth partition; the first partition and the second partition are fixed on the left middle shell of the warm air distribution box, and the third partition and the fourth partition are fixed on the right middle shell of the warm air distribution box; when the first partition and the third partition are buckled together, the rear flow channel is divided into a rear upper flow channel and a rear lower flow channel; when the second partition and the fourth partition are buckled together, a rectangular outlet is formed at the end of the rear upper flow channel and the rear lower flow channel.

3. The multi-temperature zone automobile air conditioning distribution box according to claim 2 is characterized in that: The first partition plate and the third partition plate are located at 50%±20% of the overall width of the rear flow channel.

4. The multi-temperature zone automobile air conditioning distribution box according to claim 2 is characterized in that: The distance between the second partition plate and the fourth partition plate and the entrance of the rear air outlet is 35 mm to 60 mm.

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