Efficient integrated automobile air conditioner ventilation system and automobile

Abstract

The utility model relates to an efficient integrated automobile air conditioner ventilation system and an automobile. The system comprises a refrigerant circulation loop, an air conditioner box and the like. And the compressor and the air-conditioning fan in the refrigerant circulation loop are coaxial and share a driving motor. The air conditioning box comprises an air inlet box and a distribution box, and a filter, an evaporator, a compressor, a driving motor and an air conditioning fan are sequentially arranged in the air inlet box. A plurality of air doors are arranged in the distribution box and used for controlling the air direction. The refrigerant circulation loop further comprises an internal condenser and an external condenser, and a throttling valve and a one-way valve are arranged on a connecting pipeline and a branch. The system can realize a face blowing internal circulation full-cooling mode, a foot blowing external circulation full-heating mode, a defrosting full-heating mode and the like. During refrigeration in summer, the compressor is cooled through airflow in the air conditioner box; and during heating in winter, the interior of the vehicle is heated by recovering waste heat of the compressor. The system is high in integration degree and efficiency, forced convection heat dissipation of the compressor can be achieved, the high-temperature protection risk is reduced, waste heat of the compressor is recycled, and the endurance mileage is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile air conditioners and relates to a high-efficiency integrated automobile air conditioning ventilation system and an automobile. Background Art

[0002] At present, new energy vehicles and smart cars have higher and higher requirements for the functionality and comfort of smart cockpits. Due to the need to add various new functions and implement various smart control solutions, more space is required for electronic control equipment and electronic smart devices, so the air conditioning box system needs to be designed more compactly. At the same time, users' requirements for in-car comfort are constantly increasing, so the requirements for air volume and cooling and heating performance of air conditioning systems are higher. In traditional air conditioning systems, the high-pressure section of the compressor generates a lot of heat in summer, and the heat is not easy to dissipate, which easily triggers high-temperature protection and high-pressure protection, limiting the performance of the thermal system; in winter, the compressor casing dissipates heat outward, and the heat is wasted, affecting the performance of the system's heating performance. Utility Model Content

[0003] In view of this, the purpose of the present invention is to solve the above problems and provide a highly efficient integrated automobile air conditioning and ventilation system and an automobile.

[0004] In order to achieve the above object, the utility model provides the following technical solutions:

[0005] A highly efficient integrated automobile air conditioning and ventilation system comprises a refrigerant circulation loop and an air conditioning box; a compressor in the refrigerant circulation loop and an air conditioning fan in an air inlet box are coaxial and share a driving motor, one end of the driving motor is connected to the air conditioning fan, and the other end is connected to the compressor via a clutch transmission.

[0006] Further, the air conditioning box includes an air inlet box and a distribution box, and the air inlet box and the distribution box are connected through an air duct; the air inlet of the air inlet box is provided with a filter, an evaporator, the compressor, the drive motor, and the air conditioning fan in sequence from the outside to the inside, and the shell of the compressor is provided with heat exchange fins, and the airflow in the air inlet box exchanges heat with the compressor through the heat exchange fins;

[0007] A partition is provided between the air inlet box and the distribution box to separate the air ducts in the air inlet box and the distribution box into a first air duct and a second air duct; the first air duct is connected to the fresh air inlet, and the second air duct is connected to the internal circulation air inlet; an internal circulation damper for controlling the opening and closing of the internal circulation air inlet is provided on the internal circulation air inlet, and an internal and external circulation partition damper is provided between the fresh air inlet and the internal circulation air inlet;

[0008] The distribution box is provided with a sliding mixing damper, a defrost damper, a face damper, a foot damper and a double-layer flow mode damper; the defrost damper and the face damper are arranged at the upper part of the distribution box and are connected to the first air duct; the foot damper is arranged at the lower part of the distribution box and is connected to the second air duct; the double-layer flow mode damper is arranged between the first air duct and the second air duct, and is used to control the opening and closing of the first air duct and the second air duct.

[0009] Further, the refrigerant circulation circuit includes the evaporator, the compressor, the built-in condenser, and the external condenser which are connected in series through pipelines. The built-in condenser is arranged in the distribution box and is located behind the sliding mixing damper. The outlet of the external condenser is divided into two paths, one of which is connected to the compressor through a first branch, and the other is connected to the evaporator through a second branch. The second branch is connected to the connecting pipeline between the built-in condenser and the external condenser through a bypass.

[0010] A first throttling expansion valve is provided on the connecting pipeline between the built-in condenser and the external condenser; a one-way valve is provided on the first branch, the second branch and the bypass, a second throttling expansion valve is provided on one end of the second branch close to the evaporator, the connection point of one end of the bypass is located between the one-way valve of the second branch and the second throttling expansion valve, and the connection point of the other end is located between the built-in condenser and the first throttling expansion valve.

[0011] Furthermore, an electric heater is provided on a side of the built-in condenser away from the air inlet of the distribution box for assisting in heating the airflow.

[0012] A car comprises the above-mentioned high-efficiency integrated car air-conditioning and ventilation system.

[0013] The beneficial effects of the utility model are:

[0014] 1. In the utility model, the compressor and the air conditioner fan are driven by the same drive motor, eliminating the traditional fan drive motor. The shared high-power drive motor can provide greater shaft power output, can bring greater air volume to the system, and the system integration is higher and the efficiency is higher.

[0015] 2. In the utility model, forced convection heat dissipation of the compressor can be achieved in the summer cooling mode, reducing the possibility of triggering high temperature protection, ensuring the working reliability of the compressor, and maximizing the performance of the thermal system. In the winter heating mode, the waste heat of the compressor casing is recovered, so that all the heat sources of the system can be fully utilized to heat the passenger compartment and improve the cruising range of new energy vehicles.

[0016] 3. In the present invention, the speed of the fan and the compressor can be adjusted through the clutch transmission, thereby achieving variable air volume output on the air side and variable pressure ratio output on the refrigerant side.

[0017] 4. The whole system can be realized in split modular combination, and the layout inside the car is flexible.

[0018] 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

[0019] 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:

[0020] Figure 1 It is a schematic diagram of the structure of the efficient integrated automobile air conditioning and ventilation system in the utility model.

[0021] Figures 2 to 5 It is a schematic diagram of various operating modes of the efficient integrated automobile air conditioning and ventilation system in the present utility model.

[0022] Figure 6 This is the installation diagram of the compressor, drive motor, and air conditioning fan.

[0023] Figure markings: 1-fresh air inlet; 2-defrost air outlet; 3-face air outlet; 4-foot air outlet; 5-internal circulation air inlet; 6-filter; 7-evaporator; 8-compressor; 81-heat exchange fins; 9-drive motor; 10-air conditioning fan; 11-built-in condenser; 12-electric heater; 13-external condenser; 14-first throttling expansion valve; 15-clutch transmission; 16-second throttling expansion valve; a-external circulation damper; b-internal circulation damper; c-defrost damper; d-sliding mixing damper; e-face damper; f-foot damper; g-internal and external circulation separation damper; h-double-layer flow mode damper. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] 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.

[0027] Example 1

[0028] See also Figures 1 to 6 It is a highly efficient integrated automobile air conditioning and ventilation system, including a refrigerant circulation loop and an air conditioning box; the compressor 8 in the refrigerant circulation loop is coaxial with the air conditioning fan 10 in the air inlet box, and shares a driving motor 9, one end of the driving motor 9 is connected to the air conditioning fan 10, and the other end is connected to the compressor 8 through a clutch transmission 15.

[0029] The air-conditioning box includes an air inlet box and a distribution box, and the air inlet box and the distribution box are connected through an air duct; the air inlet of the air inlet box is provided with a filter 6, an evaporator 7, a compressor 8, a drive motor 9, and an air-conditioning fan 10 from the outside to the inside, and the shell of the compressor 8 is provided with heat exchange fins 81, and the air flow in the air inlet box exchanges heat with the compressor 8 through the heat exchange fins 81; a partition is provided in the middle of the air inlet box and the distribution box, which separates the air ducts in the air inlet box and the distribution box into a first air duct and a second air duct; the first air duct is connected with the fresh air inlet 1, and the second air duct is connected with the internal circulation air inlet 5; the internal circulation air inlet 5 is provided with an internal circulation damper b for controlling its opening and closing, and an internal and external circulation dividing damper g is provided between the fresh air inlet 1 and the internal circulation air inlet 5.

[0030] The distribution box is provided with a sliding mixing damper d, a defrost damper c, a face-blowing damper e, a foot-blowing damper f and a double-layer flow mode damper h; the defrost damper c and the face-blowing damper e are arranged at the upper part of the distribution box and are connected to the first air duct; the foot-blowing damper f is arranged at the lower part of the distribution box and is connected to the second air duct; the double-layer flow mode damper h and the internal and external circulation separation damper g are both arranged between the first air duct and the second air duct, and are used to control the opening and closing between the first air duct and the second air duct.

[0031] The refrigerant circulation circuit includes an evaporator 7, a compressor 8, a built-in condenser 11, and an external condenser 13 which are connected in series through pipelines. The built-in condenser 11 is arranged in the distribution box and is located behind the sliding mixing air door d. The outlet of the external condenser 13 is divided into two paths, one of which is connected to the compressor 8 through a first branch, and the other is connected to the evaporator 7 through a second branch. The second branch is connected to the connecting pipeline between the built-in condenser 11 and the external condenser 13 through a bypass.

[0032] A first throttling expansion valve 14 is arranged on the connecting pipeline between the built-in condenser 11 and the external condenser 13; a one-way valve is arranged on the first branch, the second branch and the bypass, and a second throttling expansion valve 16 is arranged on the end of the second branch close to the evaporator 7; the connection point at one end of the bypass is located between the one-way valve of the second branch and the second throttling expansion valve 16, and the connection point at the other end is located between the built-in condenser 11 and the first throttling expansion valve 14.

[0033] An electric heater 12 is installed on one side of the built-in condenser 11 away from the air inlet of the distribution box for auxiliary heating of the airflow. The electric heater 12 is an optional component, which is added in this embodiment, but may not be added in other implementation processes.

[0034] The air-conditioning fan 10 in this embodiment adopts the impeller in the Chinese patent with publication number CN113427971A, the distribution box also adopts the distribution box structure in CN113427971A, and the drive motor 9 adopts a high-power drive motor.

[0035] The control method of the efficient integrated automobile air-conditioning and ventilation system in this embodiment includes a full-cold mode of internal circulation for the blowing surface, a full-heat mode of external circulation for the blowing foot, a full-heat mode of external circulation for defrosting, and a full-heat mode of half-internal and half-external circulation for defrosting and blowing foot; the compressor 8 and the air-conditioning fan 10 are coaxially driven by a drive motor 9. During cooling in summer, the air flow in the air-conditioning box dissipates heat from the compressor 8. During heating in winter, the air flow in the air-conditioning box recovers the waste heat of the compressor 8 for heating the passenger compartment.

[0036] See also Figure 2 , the full-cooling mode of blowing on the face and internal circulation is as follows: control the external circulation damper a to be closed, the internal circulation damper b to be opened, the defrosting damper c to be closed, the sliding mixing damper d to be moved to the full-cooling position, the blowing on the face damper e to be opened, the blowing on the foot damper f to be closed, the internal and external circulation separation damper g to be opened, and the double-layer flow mode damper h to be opened;

[0037] Air enters the air conditioning box from the internal circulation air inlet 5, and the air flow passes through the filter 6, evaporator 7, compressor 8, drive motor 9, air conditioning fan 10 in sequence, enters the distribution box, and flows out from the blowing surface air outlet 3; the refrigerant is pressurized by the compressor 8 and flows through the built-in condenser 11, and then flows through the external condenser 13, releasing heat to the environment, passing through the second throttling expansion valve 16, reaching the evaporator 7 to absorb heat and cool the air flowing through the air conditioning box, and then returns to the compressor 8 for circulation.

[0038] See also Figure 3 , the foot-blowing external circulation full-heat mode is: control the external circulation damper a to open, the internal circulation damper b to close, the defrost damper c to close, the sliding mixing damper d to move to the full-heat position, the face-blowing damper e to close, the foot-blowing damper f to open, the internal and external circulation separation damper g to open, and the double-layer flow mode damper h to open;

[0039] Air enters the air conditioner from the fresh air inlet 1, flows through the filter 6, evaporator 7, compressor 8, drive motor 9, air conditioner fan 10, built-in condenser 11, electric heater 12, enters the distribution box, and flows out from the foot outlet 4; the refrigerant is pressurized by the compressor 8 to flow through the built-in condenser 11 to heat the air flowing through the air conditioner, passes through the first throttling expansion valve 14, and then flows through the external condenser 13. At this time, the external condenser 13 is used as an evaporator to absorb heat from the environment, and the refrigerant returns to the compressor 8 for circulation. When the system has a dehumidification demand, the bypass is opened, the refrigerant flows through the second throttling expansion valve 16, passes through the evaporator 7 to absorb heat and cool the air flowing through the air conditioner, and then the refrigerant returns to the compressor 8 for circulation.

[0040] See also Figure 4 , the defrost external circulation full heat mode is: control the external circulation damper a to open, the internal circulation damper b to close, the defrost damper c to open, the sliding mixing damper d to move to the full heat position, the face damper e to close, the foot damper f to close, the internal and external circulation separation damper g to open, and the double laminar flow mode damper h to open;

[0041] Air enters the air conditioning box from the fresh air inlet 1, and flows through the filter 6, evaporator 7, compressor 8, drive motor 9, air conditioning fan 10, built-in condenser 11, electric heater 12 in sequence, passes through the air conditioning distribution box, and flows out from the defrost outlet 2; the refrigerant is pressurized by the compressor 8 to flow through the built-in condenser 11 to heat the air flowing through the air conditioning box, passes through the first throttling expansion valve 14, and then flows through the external condenser 13. At this time, the external condenser 13 is used as an evaporator to absorb heat from the environment, and then the refrigerant returns to the compressor 8 to circulate.

[0042] When the system has a dehumidification demand, the bypass is opened, and the refrigerant flows through the second throttling expansion valve 16, absorbs heat from the air flowing through the air-conditioning box through the evaporator 7, and then the refrigerant returns to the compressor 8 to circulate.

[0043] See also Figure 5 , the defrost foot blowing half inner and half outer circulation full heat mode is: control the outer circulation damper a to open, the inner circulation damper b to open, the defrost damper c to open, the sliding mixing damper d to move to the full heat position, the face blowing damper e to close, the foot blowing damper f to open, the inner and outer circulation separation damper g to close, and the double laminar flow mode damper h to close;

[0044] The fresh air inlet 1 and the internal circulation air inlet 5 are separated by the internal and external circulation dividing damper g. The external dry and cold air enters the air-conditioning box through the fresh air inlet 1 via the first air duct, and the internal humid and hot air enters the air-conditioning box through the internal circulation air inlet 5 via the second air duct, and flows through the filter 6, evaporator 7, compressor 8, drive motor 9, air-conditioning fan 10, built-in condenser 11, electric heater 12 in sequence, and enters the distribution box. The external air flows out from the defrost outlet 2, and the internal circulation air flows out from the foot outlet 4; the refrigerant is pressurized by the compressor 8 to flow through the built-in condenser 11 to heat the air flowing through the air-conditioning box, passes through the first throttling expansion valve 14, and then flows through the external condenser 13. At this time, the external condenser 13 is used as an evaporator, absorbing heat from the environment, and then the refrigerant returns to the compressor 8 for circulation.

[0045] When the system has a dehumidification demand, the bypass is opened, and the refrigerant flows through the second throttling expansion valve 16, absorbs heat from the air flowing through the air-conditioning box through the evaporator 7, and then the refrigerant returns to the compressor 8 to circulate.

[0046] Example 2

[0047] A car comprises the high-efficiency integrated car air-conditioning and ventilation system in embodiment 1.

[0048] 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 highly efficient integrated automobile air conditioning and ventilation system, comprising a refrigerant circulation loop and an air conditioning box; characterized in that: The compressor in the refrigerant circulation loop is coaxial with the air-conditioning fan in the air inlet box and shares a driving motor. One end of the driving motor is connected to the air-conditioning fan, and the other end is connected to the compressor through a clutch transmission.

2. The high-efficiency integrated automobile air conditioning and ventilation system according to claim 1 is characterized in that: The air conditioning box includes an air inlet box and a distribution box, and the air inlet box and the distribution box are connected through an air duct; The air inlet of the air inlet box is provided with a filter, an evaporator, the compressor, the drive motor, and the air conditioning fan in sequence from the outside to the inside. The shell of the compressor is provided with heat exchange fins, and the airflow in the air inlet box exchanges heat with the compressor through the heat exchange fins; A partition is provided between the air inlet box and the distribution box to separate the air ducts in the air inlet box and the distribution box into a first air duct and a second air duct; the first air duct is connected to the fresh air inlet, and the second air duct is connected to the internal circulation air inlet; an internal circulation damper for controlling the opening and closing of the internal circulation air inlet is provided on the internal circulation air inlet, and an internal and external circulation partition damper is provided between the fresh air inlet and the internal circulation air inlet; The distribution box is provided with a sliding mixing damper, a defrost damper, a face damper, a foot damper and a double-layer flow mode damper; the defrost damper and the face damper are arranged at the upper part of the distribution box and are connected to the first air duct; the foot damper is arranged at the lower part of the distribution box and is connected to the second air duct; the double-layer flow mode damper is arranged between the first air duct and the second air duct, and is used to control the opening and closing of the first air duct and the second air duct.

3. The high-efficiency integrated automobile air conditioning and ventilation system according to claim 2 is characterized in that: The refrigerant circulation loop comprises the evaporator, the compressor, the internal condenser and the external condenser which are connected in series through pipelines. The internal condenser is arranged in the distribution box and is located behind the sliding mixing damper. The outlet of the external condenser is divided into two paths, one of which is connected to the compressor through a first branch and the other is connected to the evaporator through a second branch. The second branch is connected to the connecting pipeline between the internal condenser and the external condenser through a bypass. A first throttling expansion valve is provided on the connecting pipeline between the built-in condenser and the external condenser; a one-way valve is provided on the first branch, the second branch and the bypass, a second throttling expansion valve is provided on one end of the second branch close to the evaporator, the connection point of one end of the bypass is located between the one-way valve of the second branch and the second throttling expansion valve, and the connection point of the other end is located between the built-in condenser and the first throttling expansion valve.

4. The high-efficiency integrated automobile air conditioning and ventilation system according to claim 3 is characterized in that: An electric heater is provided on one side of the built-in condenser away from the air inlet of the distribution box for assisting in heating the air flow.

5. A car, characterized in that: It comprises a high-efficiency integrated automobile air-conditioning and ventilation system as described in any one of claims 1 to 4.

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