Linear temperature adjusting structure of automobile air conditioner
By adding a cold air discharge port and a hot air underflow channel on the top of the rear runner of the car air conditioner to adjust the ratio of cold air and hot air, the problem of large temperature difference between the front and rear rows under the heating demand of the whole vehicle is solved, and the comfort of the rear passengers and the temperature balance of the whole vehicle are improved.
Patent Information
- Application Number
- CN202421955968.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-08-13
AI Technical Summary
Under the demand for heating the whole vehicle, the temperature difference between the front and rear areas is too large, affecting the comfort of the rear passengers.
By adding a cold air discharge port on the top of the rear runner of the shell in the distribution box, and limiting the opening size of the cold air discharge port through the first linear feature, a ventilation hole channel is formed that communicates with the defrosting air outlet, increasing the connection between the hot air runner and the defrosting air outlet, adjusting the ratio of the cold air and the hot air to reduce the temperature difference.
It effectively reduces the temperature difference between the front and rear exhaust air temperatures, meets the heating needs of rear passengers, and maintains the comfortable temperature in the front area and improves the comfort of the entire vehicle.
Smart Images
Figure CN222859168U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile air conditioners and relates to a temperature linear adjustment structure of an automobile air conditioner. Background Art
[0002] The traditional automobile air conditioning distribution box structure is divided into the left shell of the warm air distribution box, the left middle shell of the warm air distribution box, the right middle shell of the warm air distribution box, and the right shell of the warm air distribution box, forming three independent air flow channels: the left flow channel, the rear flow channel, and the right flow channel. Then, the opening of the cold and hot air doors of each flow channel is used to adjust the ratio of cold air and hot air in each area to achieve temperature adjustment in the three spatial areas of the main driver / rear seat / co-driver, and realize three-temperature zone automobile air conditioning. The left flow channel serves the main driver area; the rear flow channel is dedicated to providing air for the rear passenger area; the right flow channel is mainly responsible for providing air to the co-driver area. In each flow channel, there is usually a cold and hot air door (or mixing door). These doors are controlled by motors or mechanical devices to adjust the ratio of cold air and warm air entering the flow channel. In this way, the temperature of the main driver, co-driver and rear seat areas can be adjusted separately according to the needs of the passengers.
[0003] However, the traditional rear flow channel is a closed structure, and the rear heating and cooling air doors are controlled in conjunction with the driver's side heating and cooling air doors, and cannot be controlled independently. However, the temperature difference between the rear and front driver / passenger areas is large, resulting in a high ambient temperature in the front driver / passenger area and a low temperature in the rear passenger area under the vehicle heating demand, which seriously affects the comfort of the rear passengers. For example, in the vehicle foot blowing mode, the air outlet temperature of the front driver and passenger sides is high, while the air outlet temperature of the rear foot blowing is low, resulting in a large temperature difference between the front and rear areas of the vehicle, causing complaints from rear passengers. Utility Model Content
[0004] In view of this, the purpose of the utility model is to provide a linear temperature adjustment structure for an automobile air conditioner to solve the problem of large temperature difference between the front and rear areas of the vehicle under the heating demand of the whole vehicle, so that the heating demand of the passengers in the rear area can be met without affecting the front area, keeping the driver and passengers in the front / rear areas feeling the same temperature of air outlet, thereby improving the comfort of the whole vehicle.
[0005] In order to achieve the above object, the utility model provides the following technical solutions:
[0006] A linear temperature adjustment structure for an automobile air conditioner comprises a left middle shell of a distribution box, a right middle shell of a distribution box, a left shell of a distribution box and a right shell of a distribution box, a rear flow channel is formed in the cavity of the middle shell of the distribution box which is composed of the left middle shell of the distribution box and the right middle shell of the distribution box, and the rear flow channel is divided into a cold air flow channel and a mixing flow channel arranged in sequence along the wind direction and a hot air flow channel connected in parallel with the cold air flow channel, the cold air flow channel and the hot air flow channel are connected to the mixing flow channel through a rear mixing damper, the left shell of the distribution box and the right shell of the distribution box are respectively installed on both sides of the middle shell of the distribution box, and a defrost air outlet is formed on the top of the middle shell of the distribution box, and a cold air discharge port connected to the defrost air outlet is provided at the top of the rear flow channel corresponding to the rear mixing damper, so that part of the cold air in the cold air flow channel enters the defrost air outlet through the cold air discharge port, thereby increasing the temperature of the rear exhaust air outlet.
[0007] Furthermore, a dark flow channel connected to the defrost air outlet is also provided at the outlet of the hot air flow channel, so that part of the hot air in the hot air flow channel enters the defrost air outlet through the dark flow channel.
[0008] Furthermore, a first linear feature perpendicular to the axis of the cold air discharge port is provided at the cold air discharge port to limit the opening size of the cold air discharge port.
[0009] Furthermore, a second linear feature connected to the first linear feature and parallel to the axis of the cold air discharge port is provided in the cold air discharge port to form a ventilation duct connected to the cold air discharge port in the defrost air port, and the ventilation duct cooperates with the defrost damper in the defrost air port to realize the opening and closing of the ventilation duct and the opening ratio through the defrost damper.
[0010] Furthermore, the number of the first linear feature and the number of the second linear feature are both two, and each of them is installed on the left middle shell of the distribution box and the right middle shell of the distribution box in a mirror-symmetrical manner.
[0011] Furthermore, the first linear feature is configured as a rib plate perpendicular to the axis of the cold air discharge port, and two first linear features respectively arranged on the left middle shell of the distribution box and the right middle shell of the distribution box are combined to form the cold air discharge port.
[0012] Furthermore, the second linear feature is a vertical plate with an L-shaped cross-section, and one end of the vertical plate is fixedly connected to the first linear feature, and the other end is connected to the defrost damper in a cooperating manner. After the two second linear features respectively arranged on the left middle shell of the distribution box and the right middle shell of the distribution box are combined, they form a ventilation duct with the side wall of the defrost air outlet that is connected to the defrost damper in a cooperating manner.
[0013] Furthermore, the outlet of the underflow channel is located at the center of the cold air discharge port and is connected to the ventilation channel, and the outer diameter of the underflow channel is smaller than the inner diameter of the cold air discharge port, so that the cold air and hot air in the rear flow channel can be discharged into the defrost air outlet through the ventilation channel.
[0014] The beneficial effects of the utility model are:
[0015] The utility model provides a linear temperature adjustment structure for an automobile air-conditioning system, which adds a cold air discharge port connected to the defrost air outlet at the top of a rear flow channel in a shell in a distribution box, and limits the diameter of the cold air discharge port by a first linear feature to control the air volume of the cold air discharge port; a ventilation channel connected to the cold air discharge port is formed by a second linear feature, and the ventilation channel cooperates with a defrost damper in the defrost air outlet to realize the opening and closing of the ventilation channel and the opening degree through the defrost damper, and a dark flow channel connected to the defrost air outlet is also provided at the outlet of the hot air flow channel, so that part of the hot air in the hot air flow channel enters the defrost air outlet through the dark flow channel, thereby reducing the hot air entering the rear mixing damper and the mixing air duct, avoiding the situation where the rear exhaust air outlet is overheated under the demand for heating the entire vehicle, or the phenomenon that too much cold air in the rear flow channel is discharged into the defrost air outlet, resulting in a large temperature difference of the exhaust air flow in the defrost air outlet.
[0016] 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
[0017] 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:
[0018] Figure 1 It is a three-dimensional structural schematic diagram of a linear temperature adjustment structure of an automobile air conditioner in the embodiment (the left middle shell of the distribution box);
[0019] Figure 2 It is a structural schematic diagram of a linear temperature adjustment structure of an automobile air conditioner in the embodiment (right middle shell of the distribution box);
[0020] Figure 3 It is a cross-sectional structural schematic diagram of a linear temperature adjustment structure of an automobile air conditioner in an embodiment;
[0021] Figure 4 It is a partial structural schematic diagram (cold air discharge port) of a linear temperature adjustment structure of an automobile air conditioner in an embodiment.
[0022] Figure numerals: evaporator 1, rear mixing damper 2, distribution box left middle shell 3, defrost damper 4, rear face damper 5, rear foot damper 6, warm air core 7, air heating PTC 8, underflow channel 9, first linear feature 10, second linear feature 11, distribution box left middle shell 12, cold air discharge port 13. DETAILED DESCRIPTION
[0023] 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.
[0024] 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.
[0025] 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.
[0026] See also Figure 1 to Figure 4, which is a linear temperature adjustment structure for automobile air conditioners, comprising a left middle shell 3 of a distribution box and a right middle shell 12 of a distribution box which is mirror-symmetrical to the left middle shell 3 of the distribution box, and a rear flow channel is formed in the cavity of the middle shell of the distribution box which is composed of the left middle shell 3 of the distribution box and the right middle shell 12 of the distribution box, and the rear flow channel is divided into a cold air flow channel and a mixing flow channel which are arranged in sequence along the wind direction, and a hot air flow channel which is parallel to the cold air flow channel, and the cold air flow channel and the hot air flow channel are connected to the mixing flow channel through a rear mixing damper 2, and the switching and mixing of the cold air and the hot air are realized; a rear face air port and a rear foot air port are provided at the outlet of the mixing flow channel, and a rear face air door 5 and a rear foot air door 6 are provided in the rear face air port and the rear foot air port respectively.
[0027] An evaporator and a HVAC device are sequentially arranged on the shell of the distribution box along the air flow direction, and the HVAC device matches the hot air flow channel; specifically, the HVAC device includes a warm air core 7 and an air-heating PTC 8.
[0028] The distribution box in the automobile air conditioner also includes a distribution box left shell and a distribution box right shell respectively installed on both sides of the distribution box middle shell, and after the distribution box left shell and the distribution box right shell are assembled and installed with the distribution box middle shell, a defrost air outlet that is not connected to the rear flow channel is formed on the top of the distribution box middle shell of the distribution box, and a channel connected to the left flow channel and the right flow channel is provided in the defrost air outlet.
[0029] The above-mentioned distribution box structure is a distribution box structure of the prior art that is arranged with left flow channel / rear flow channel / right flow channel, and because the rear flow channel is a closed structure, the rear mixing damper 2 is controlled in linkage with the left mixing damper in the left flow channel, and the rear exhaust air outlet temperature is achieved by adjusting the opening angle of the rear mixing damper 2; the main engine side air outlet temperature is adjusted at the opening angle of the left mixing damper, and at the same time, the opening angle of the rear mixing damper 2 is the same as the left mixing damper. When the opening angles of the rear mixing damper and the left mixing damper are the same, since all the cold air in the rear flow channel passes through the cold air flow channel and the hot air flow channel through the rear mixing damper and enters the mixing flow channel in the rear flow channel, part of the cold air in the left flow channel flows out through the defrost air outlet or other air outlets, which causes the front exhaust air temperature to be higher than the rear exhaust air temperature.
[0030] Specifically, one end of the rear mixing damper 2 is rotatably connected to the right middle shell of the distribution box, and the other end is rotatably connected to the left middle shell of the distribution box. It adopts a columnar structure with a fan-shaped cross-section, and the curved surface part faces the outlet of the hot runner to serve as a sealing structure of the hot runner. Both sides of the curved surface are hollow U-shaped structures to form an air duct, and fan-shaped grooves matching the rotation area of the rear mixing damper 2 are provided on the right middle shell of the distribution box and the left middle shell of the distribution box.
[0031] like Figure 2As shown, this state is the mixing state of the rear mixing damper 2. At this time, the curved surface structure of the rear mixing damper 2 mainly closes part of the cold air flow channel, and the cold air flows into the mixing flow channel only through the hollow structures on both sides of the curved surface; when the rear mixing damper 2 continues to rotate clockwise to the clockwise extreme position, the hot air flow channel will be fully opened, and the cold air flow channel will be closed, and the rear flow channel will enter a fully hot state; if it is rotated counterclockwise to the extreme position, the hot air flow channel will be completely closed, the cold air flow channel will be fully opened, and the rear flow channel will enter a fully cold state.
[0032] The key to this embodiment is that a cold air discharge port 13 connected to the defrost air port is provided at the top of the rear flow channel and at a position corresponding to the rear mixing air door 2, so that part of the cold air in the cold air flow channel enters the defrost air port through the cold air discharge port 13, thereby reducing the cold air entering the mixing air channel through the rear mixing air door 2 and increasing the temperature of the rear exhaust air port; a dark flow channel 9 connected to the defrost air port is also provided at the outlet of the hot air flow channel, so that part of the hot air in the hot air flow channel enters the defrost air port through the dark flow channel 9, thereby reducing the hot air entering the rear mixing air door 2 and the mixing air channel;
[0033] A first linear feature 10 perpendicular to the axis of the cold air discharge port is provided at the cold air discharge port to limit the opening size of the cold air discharge port, thereby controlling the wind flow size of the cold air discharge port;
[0034] A second linear feature 11 connected to the first linear feature 10 and parallel to the axis of the cold air discharge port is provided on the side of the cold air discharge port away from the rear flow channel, so as to form a ventilation duct connected to the cold air discharge port in the defrost air port, and the ventilation duct cooperates with the defrost damper 4 in the defrost air port to realize the opening and closing and the opening degree of the ventilation duct through the defrost damper 4, thereby changing the different proportions of cold air and hot air discharged from the rear air outlet, thereby reducing the temperature difference of the front / rear exhaust air in different modes.
[0035] Specifically, the first linear feature 10 and the second linear feature 11 are both two, and are respectively installed on the left middle shell 3 and the right middle shell of the distribution box in a mirror-symmetrical manner;
[0036] The first linear feature 10 is set to be a rib plate perpendicular to the axis of the cold air discharge port 13 and having a notch. Two first linear features 10 respectively arranged on the left middle shell 3 of the distribution box and the right middle shell of the distribution box are combined to form a cold air discharge port with a special-shaped hole structure. The opening size of the cold air discharge port is limited by controlling the width of the rib plate;
[0037] The second linear feature 11 is a vertical plate with an L-shaped cross-section, and one end of the vertical plate is fixedly connected to the first linear feature 10, and the other end is connected to the defrost damper 4 in a butt-matching manner. The two second linear features 11 respectively arranged on the left middle shell 3 of the distribution box and the right middle shell of the distribution box are combined with the side walls of the defrost air outlet to form a ventilation duct that is connected to the defrost damper 4 in a butt-matching manner, so that the defrost damper 4 can adjust the air outlet of the ventilation duct, so that it can meet the front / rear temperature difference requirements when the air volume distribution ratio is different in different modes.
[0038] In this embodiment, the outlet of the underflow channel 9 is located at the center of the cold air discharge port and is connected to the ventilation channel. The outer diameter of the underflow channel 9 is smaller than the inner diameter of the cold air discharge port, so that the cold air and hot air in the rear flow channel can be discharged into the defrost air outlet through the ventilation channel, thereby avoiding overheating of the rear row when the whole vehicle needs to be heated.
[0039] 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 linear temperature adjustment structure for automobile air conditioner, comprising a left middle shell of a distribution box, a right middle shell of a distribution box, a left shell of a distribution box and a right shell of a distribution box, a rear flow channel is formed in the cavity of the middle shell of the distribution box formed by combining the left middle shell of the distribution box and the right middle shell of the distribution box, and the rear flow channel is divided into a cold air flow channel and a mixing flow channel arranged in sequence along the wind direction and a hot air flow channel connected in parallel with the cold air flow channel, the cold air flow channel and the hot air flow channel are connected with the mixing flow channel through a rear mixing damper, the left shell of the distribution box and the right shell of the distribution box are respectively installed on both sides of the middle shell of the distribution box, and a defrosting air outlet is formed on the top of the middle shell of the distribution box, characterized in that: A cold air discharge port connected to the defrost air outlet is provided at the top of the rear flow channel and at a position corresponding to the rear mixing air door, so that part of the cold air in the cold air flow channel enters the defrost air outlet through the cold air discharge port, thereby increasing the temperature of the rear exhaust air outlet.
2. The automotive air conditioning temperature linear adjustment structure according to claim 1, characterized in that: A dark flow channel connected to the defrost air outlet is also provided at the outlet of the hot air flow channel, so that part of the hot air in the hot air flow channel enters the defrost air outlet through the dark flow channel.
3. The automotive air conditioning temperature linear adjustment structure according to claim 2 is characterized in that: A first linear feature perpendicular to the axis of the cold air discharge port is provided at the cold air discharge port to limit the opening size of the cold air discharge port.
4. The automobile air conditioning temperature linear adjustment structure according to claim 3 is characterized in that: The cold air discharge port is provided with a second linear feature connected to the first linear feature and parallel to the axis of the cold air discharge port, so as to form a ventilation duct connected to the cold air discharge port in the defrost air port, and the ventilation duct cooperates with the defrost damper in the defrost air port to realize the opening and closing of the ventilation duct and the opening ratio through the defrost damper.
5. The automobile air conditioning temperature linear adjustment structure according to claim 4 is characterized in that: There are two of the first linear feature and the second linear feature, and each of them is installed on the left middle shell of the distribution box and the right middle shell of the distribution box in a mirror-symmetrical manner.
6. The automobile air conditioning temperature linear adjustment structure according to claim 5, characterized in that: The first linear feature is set as a rib plate perpendicular to the axis of the cold air discharge port. Two first linear features respectively arranged on the left middle shell of the distribution box and the right middle shell of the distribution box are combined to form the cold air discharge port.
7. The automobile air conditioning temperature linear adjustment structure according to claim 5, characterized in that: The second linear feature is a vertical plate with an L-shaped cross-section, and one end of the vertical plate is fixedly connected to the first linear feature, and the other end is connected to the defrost damper in a cooperating manner. The two second linear features respectively arranged on the left middle shell of the distribution box and the right middle shell of the distribution box are combined to form a ventilation duct with the side wall of the defrost air outlet that is connected to the defrost damper in a cooperating manner.
8. The automobile air conditioning temperature linear adjustment structure according to claim 7, characterized in that: The outlet of the dark flow channel is located at the center of the cold air discharge port and is connected to the ventilation channel. The outer diameter of the dark flow channel is smaller than the inner diameter of the cold air discharge port, so that the cold air and hot air in the rear flow channel can be discharged into the defrost air outlet through the ventilation channel.