Multifunctional parking air conditioner and refrigeration cab

Abstract

The application discloses a multifunctional parking air conditioner and refrigeration cab, and relates to the technical field of commercial vehicle air conditioners. The multifunctional parking air conditioner comprises a fan and an evaporator. The parking air conditioner further comprises a closed shell, which is divided into a normal-temperature cavity and a cold air cavity by the evaporator. The fan is arranged in the normal-temperature cavity. The normal-temperature cavity is provided with four air inlets, which are respectively used for inhaling air from the indoor, inhaling air from the outdoor, discharging air to the outdoor and discharging air to the evaporator. The cold air cavity is provided with one air outlet used for discharging air to the indoor. Each air inlet is provided with a corresponding air door. The parking air conditioner can switch to form various air circulation modes including but not limited to internal circulation by opening and closing the air doors. The multifunctional parking air conditioner and refrigeration cab have various air circulation modes, and can not only perform internal circulation, but also exchange air with the outdoor.

Description

Technical Field

[0001] This application relates to the field of commercial vehicle air conditioning technology, specifically to a multi-functional parking air conditioner and a refrigerated cab. Background Technology

[0002] Currently, during vehicle operation, the air conditioning compressor is driven by the engine belt. The compressor compresses the refrigerant and sends it to the condenser for cooling. The refrigerant then absorbs heat from the air and vaporizes in the evaporator, thus providing cooling during vehicle operation. However, with rising living standards and a faster pace of life, in the commercial vehicle sector, drivers and passengers are not only in the cab while driving, but also while waiting for goods or resting. If the engine is started and the air conditioning is on at idle speed during these times, the engine will be running for extended periods, negatively impacting its reliability. Furthermore, engine noise and fuel consumption are also high during idling.

[0003] To avoid prolonged engine idling when the vehicle is parked for cooling, those skilled in the art install a separate parking air conditioner on the roof of the commercial vehicle's cab. The parking air conditioner primarily utilizes the vehicle's battery to cool the cab when parked. The difference between a parking air conditioner and a driving air conditioner is that a driving air conditioner uses an engine belt to drive the compressor, while a parking air conditioner uses battery power to drive the compressor and fan, thus cooling the cab when parked.

[0004] However, existing parking air conditioners occupy the space of the original sunroof, causing commercial vehicles to lack the ventilation function of a sunroof. More importantly, existing roof-mounted parking air conditioners only have the function of indoor air circulation and ventilation, and do not have the function of outdoor ventilation. The indoor air circulates internally for a long time, which will deteriorate the indoor air quality, especially when the driver and passengers are resting or sleeping in the cab for a long time, which will have an adverse effect on their health and rest quality. At the same time, existing roof-mounted parking air conditioners cannot perform exhaust function. When boiling water or cooking in the cab, a lot of water vapor will be generated. If this moisture is not removed from the cab in time, condensation will form on the inner surface of the vehicle's glass, affecting the reliability and comfort of the cab.

[0005] Therefore, those skilled in the art urgently need to design a new parking air conditioner to solve the above-mentioned technical problems. Summary of the Invention

[0006] In view of the deficiencies in the existing technology, the purpose of this application is to provide a multi-functional parking air conditioner and a refrigerated cab, which has multiple different air circulation modes, and can not only perform internal circulation, but also exchange air with the outside.

[0007] To achieve the above objectives, the technical solution adopted is as follows: a multi-functional parking air conditioner, comprising a fan and an evaporator, the parking air conditioner further comprising a sealed housing, the sealed housing being separated by the evaporator to form a normal temperature chamber and a cold air chamber; the fan is disposed in the normal temperature chamber, the normal temperature chamber having four air inlets, the four air inlets being respectively used for drawing air from the interior, drawing air from the outside, exhausting air to the outside, and exhausting air to the evaporator; the cold air chamber having one air inlet for exhausting air to the interior; each air inlet having a corresponding damper; the parking air conditioner switching between various dampers to form multiple different air circulation modes, including but not limited to internal circulation.

[0008] Based on the above technical solution, the parking air conditioner also includes several stepper motors, each of which is connected to one of the air dampers, and all the stepper motors are connected to the vehicle controller. Based on the above technical solution, the four air inlets are an external air inlet, an exhaust outlet, an evaporator air inlet, and an indoor air inlet; an openable and closable external air inlet damper is installed at the external air inlet, a shared exhaust damper is installed between the exhaust outlet and the evaporator air inlet, and an internal air inlet damper is installed at the indoor air inlet; the cold air chamber includes an indoor air outlet; the various air circulation modes include an internal circulation mode, an external circulation mode, a mixed internal and external circulation mode, and an exhaust mode.

[0009] Based on the above technical solution, the parking air conditioner also includes a deflector plate, which divides the ambient temperature cavity into an air intake cavity and an air outlet cavity for the fan. The external air intake port is located at the edge of the air intake cavity; the exhaust port and the evaporator air intake port are located at the edge of the air outlet cavity; the deflector plate includes a straight section and an arc-shaped section, the arc-shaped section is wrapped around the fan circumference, and a ventilation port connecting the air intake cavity and the air outlet cavity is provided at its bottom.

[0010] Based on the above technical solution, when the parking air conditioner adopts the internal circulation mode, the external air intake damper closes the external air intake port, and the exhaust damper closes the exhaust port; the evaporator air intake port and the indoor air intake port are opened; the air in the driver's cabin is discharged from the indoor air outlet through the fan and evaporator.

[0011] Based on the above technical solution, when the parking air conditioner adopts the external circulation mode, the exhaust damper closes the exhaust port, and the internal air intake damper closes the indoor air intake port; the external air intake port and the evaporator air intake port are opened, and the external air is discharged from the indoor air outlet through the fan and evaporator.

[0012] Based on the above technical solution, when the parking air conditioner adopts the internal and external mixed circulation mode, the exhaust damper closes the exhaust port, and the external air inlet, the interior air inlet and the evaporator air inlet open. External air and interior air are discharged from the interior air outlet through the fan and evaporator.

[0013] Based on the above technical solution, when the parking air conditioner adopts the exhaust mode, the external air intake damper closes the external air intake port, the exhaust damper closes the evaporator air intake port, and both the indoor air intake port and the exhaust port are opened, so that the air in the driver's cabin is discharged from the exhaust port through the fan.

[0014] Based on the above technical solution, the parking air conditioner also includes a temperature sensor, which is installed outside the outside air intake and connected to the vehicle controller; the parking air conditioner also includes an automatic mode, in which the exhaust damper closes the exhaust port; when the temperature detected by the temperature sensor is higher than a first temperature threshold, the outside air intake damper closes the outside air intake port, the inside air intake damper opens the indoor air intake port, and the parking air conditioner adopts an internal circulation mode. When the temperature detected by the temperature sensor is lower than the second temperature threshold, the external air intake damper opens the external air intake port 2, the internal air intake damper closes the indoor air intake port 11, and the parking air conditioner adopts the external circulation mode. When the temperature of the temperature sensor is between the first temperature threshold and the second temperature threshold, the external air intake damper opens, the internal air intake damper opens, and the parking air conditioner adopts the internal and external mixed circulation mode.

[0015] This application also discloses a refrigerated cab, the top of which is provided with a roof panel, and the outer surface of the roof panel is equipped with a parking air conditioner as described above.

[0016] The beneficial effects of the technical solution provided in this application include: 1. The multi-functional parking air conditioner of this application has a sealed casing that is separated by an evaporator to form a normal temperature chamber and a cold air chamber. The fan is located in the normal temperature chamber, and the four air inlets of the normal temperature chamber are used to draw air from the interior, draw air from the outside, exhaust air to the outside, and exhaust air to the evaporator, respectively. The parking air conditioner switches between various air dampers to form multiple different air circulation modes, including internal circulation mode, external circulation mode, mixed internal and external circulation mode, and exhaust mode. Compared with traditional parking air conditioners, the multi-functional parking air conditioner of this application only adjusts the internal structure and switches between air circulation modes through dampers instead of air circulation modes, which is safe, reliable, and comfortable. More importantly, it integrates external circulation ventilation, mixed internal and external circulation, and exhaust functions into the parking air conditioner for linkage control. When external circulation is needed or the indoor humidity is high, the external circulation ventilation function of the parking air conditioner is turned on to exhaust indoor air to the outside, ensuring the air quality in the driver's cabin.

[0017] 2. The multi-functional parking air conditioner of this application further includes a deflector plate. The deflector plate divides the ambient temperature chamber into an air intake chamber and an air outlet chamber for the fan. The outside air intake port is located at the edge of the air intake chamber, while the exhaust port and evaporator intake port are located at the edge of the air outlet chamber. The deflector plate includes a straight section and an arc-shaped section. The arc-shaped section is arranged around the fan circumference, and its bottom is provided with a vent connecting the air intake chamber and the air outlet chamber. The fan draws in air from the air intake chamber through this vent and discharges air to the air outlet chamber. The parking air conditioner of this application has adjusted its internal structure and designed a unique deflector plate, providing a structural basis for each air damper structure, and enabling the switching of different air circulation modes by opening and closing the air dampers.

[0018] 3. The multi-functional parking air conditioner of this application, when using the external circulation mode, allows outside air to enter the fan's intake chamber through the outside air inlet, pass through the fan, enter the fan's outlet chamber, pass through the evaporator, and return to the driver's cab from the cold air chamber; when using the exhaust mode, air from the driver's cab is discharged from the exhaust port through the fan; the exhaust mode is mainly suitable for situations where there are odors or obvious water vapor in the driver's cab; the external circulation mode of the parking air conditioner of this application can draw in outdoor air, improving the air quality in the driver's cab; especially when drivers and passengers rest or sleep in the driver's cab for a long time, the indoor air quality will deteriorate, which will affect people's health and rest quality; the exhaust mode has good exhaust reliability, and does not require a dedicated exhaust port on the top of the driver's cab as in traditional parking air conditioners, improving the sealing of the driver's cab, and can also discharge humid air when needed, expelling water vapor, smoke, etc. from the driver's cab to the outside of the driver's cab through the parking air conditioner, providing strong comfort.

[0019] 4. The multi-functional parking air conditioner of this application further includes a temperature sensor installed outside the outside air intake and connected to the vehicle controller. The parking air conditioner also includes an automatic mode, in which the exhaust vent is always closed. When the temperature detected by the temperature sensor is higher than a first temperature threshold, the outside air intake vent closes the outside air intake, and the inside air intake vent opens the inside air intake, and the parking air conditioner uses an internal recirculation mode; when the temperature detected by the temperature sensor is lower than a second temperature threshold, the parking air conditioner uses an outside recirculation mode; when the temperature detected by the temperature sensor is between the first and second temperature thresholds, the parking air conditioner uses a mixed internal and external recirculation mode. In automatic mode, the parking air conditioner of this application can automatically switch between internal recirculation mode, outside recirculation mode, and mixed internal and external recirculation mode according to the outside temperature, improving air conditioning comfort and reducing fuel consumption. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of the parking air conditioner's internal circulation state provided in an embodiment of this application; Figure 2 A schematic diagram of the airflow direction in the internal recirculation state of a parking air conditioner provided in an embodiment of this application; Figure 3 This is a schematic diagram of the airflow direction in the external circulation state of the parking air conditioner provided in an embodiment of this application; Figure 4 A schematic diagram of the airflow direction of a parking air conditioner that simultaneously circulates internal and external air, provided in an embodiment of this application; Figure 5 This is a schematic diagram of the airflow direction in the exhaust state of the parking air conditioner provided in an embodiment of this application; Figure 6 A schematic diagram showing the installation location of the parking air conditioner in the driver's cab, as provided in an embodiment of this application; Reference numerals: 1. Condenser; 2. External air inlet; 3. External air inlet damper; 4. Exhaust outlet; 5. Blow-out damper; 6. Evaporator inlet; 7. Evaporator; 8. Fan; 9. Interior air outlet; 10. Interior air inlet damper; 11. Interior air inlet; 12. Parking air conditioner; 13. Roof panel; 101. Normal temperature chamber; 102. Cold air chamber; 1011. Deflector. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] like Figures 1 to 6 As shown, this application discloses an embodiment of a multi-functional parking air conditioner. The parking air conditioner includes a fan 8 and an evaporator 7. This parking air conditioner also utilizes the electrical energy of a storage battery to drive the compressor and fan 8. The refrigerant absorbs heat in the evaporator 7 to achieve the purpose of cooling. The parking air conditioner of this application mainly focuses on air conditioning cooling; its air conditioning heating is basically the same as that of the prior art and will not be discussed in detail here.

[0024] The parking air conditioner 12 also includes a sealed housing, which is separated by the evaporator 7 to form a normal temperature chamber 101 and a cold air chamber 102. The normal temperature chamber 101 is used to draw in outside air or internal air and output it to the outside or the evaporator 7. The cold air chamber 102 is used to contain the air flowing out of the evaporator 7 and further guide the air to flow out into the driver's compartment.

[0025] A fan 8 is located within the ambient temperature chamber 101, which has four air inlets. These four inlets are used for drawing air from the interior, drawing air from the outside, exhausting air to the outside, and exhausting air to the evaporator 7, respectively. A cooling chamber 102 has one air inlet for exhausting air into the interior. Ambient temperature air from the ambient temperature chamber 101, under the force of the fan 8, passes through the evaporator 7 and enters the cooling chamber 102, flowing from the air inlet of the cooling chamber 102 into the driver's cabin. Specifically, each air inlet has a corresponding damper for opening or closing the corresponding air inlet. In actual use, the parking air conditioner 12 switches between various air circulation modes by opening and closing these dampers, including but not limited to internal circulation.

[0026] The multi-functional parking air conditioner of this application has a sealed housing of the parking air conditioner 12, which is separated by the evaporator 7 to form a normal temperature chamber 101 and a cold air chamber 102. The fan 8 is located in the normal temperature chamber 101. The four air ports of the normal temperature chamber 101 are used to draw air from the room, draw air from the outside, exhaust air to the outside, and exhaust air to the evaporator 7, respectively. The parking air conditioner 12 switches between various air circulation modes by opening and closing various air dampers, including internal circulation mode, external circulation mode, internal and external mixed circulation mode, and exhaust mode. Compared with the traditional parking air conditioner, the multi-functional parking air conditioner of this application only adjusts the internal structure and switches the air circulation mode through the air dampers, which is safe, reliable and comfortable.

[0027] In one embodiment, the parking air conditioner 12 further includes several stepper motors, each connected to one of the air dampers, and all stepper motors are connected to an on-board controller. The stepper motors are small and easy to control. The on-board controller controls the opening and closing of all air dampers by controlling all the stepper motors. This multi-functional parking air conditioner allows for switching between different air circulation modes from inside the driver's cab, providing enhanced comfort.

[0028] Furthermore, the four air inlets are designated as an external air inlet 2, an exhaust outlet 4, an evaporator air inlet 6, and an interior air inlet 11. The external air inlet 2 allows outside air to enter, the exhaust outlet 4 discharges air to the outside, the evaporator air inlet 6 allows air from the ambient temperature chamber 101 to flow into the evaporator 7, and the interior air inlet 11 allows air from the driver's cab to flow into the ambient temperature chamber 101. An openable and closable external air inlet damper 3 is installed at the external air inlet 2, used to close or open it. A shared exhaust damper 5 is installed between the exhaust outlet 4 and the evaporator air inlet 6, used to close either the exhaust outlet 4 or the evaporator air inlet 6. When the exhaust damper 5 closes either the exhaust outlet 4 or the evaporator air inlet 6, the other outlet is open. An interior air inlet damper 10 is installed at the interior air inlet 11, and the cold air chamber 102 includes an interior air outlet 9. The system offers various air circulation modes, including recirculation mode, external circulation mode, mixed recirculation mode, and exhaust mode. The parking air conditioner in this application switches between different air circulation modes by controlling the opening and closing of various air dampers.

[0029] Furthermore, the parking air conditioner also includes a deflector 1011, which divides the ambient temperature chamber 101 into an air intake chamber and an air outlet chamber for the fan 8. The air intake chamber is connected to the air inlet of the fan 8, and the air outlet of the fan 8 is connected to the air outlet chamber. The outside air inlet 2 is located at the edge of the air intake chamber, and the exhaust port 4 and the evaporator air inlet 6 are located at the edge of the air outlet chamber. The air outlet chamber is adjacent to the evaporator 7. The deflector 1011 includes a straight section and an arc-shaped section. The arc-shaped section is arranged around the fan 8, and its bottom is provided with a vent connecting the air intake chamber and the air outlet chamber. The fan 8 draws in air from the air intake chamber through this vent and discharges air to the air outlet chamber. The parking air conditioner of this application has adjusted its internal structure and designed a unique deflector 1011, which provides a structural basis for each damper structure and can switch different air circulation modes by opening and closing the dampers.

[0030] like Figure 2 As shown, further, when the parking air conditioner 12 adopts the internal circulation mode, the external air intake damper 3 closes the external air intake port 2, and the exhaust damper 5 closes the exhaust port 4; the evaporator air intake port 6 and the interior air intake port 11 are open; the air in the driver's compartment passes through the fan 8 and the evaporator 7 and is discharged from the interior air outlet 9. The air in the driver's compartment enters the intake chamber of the fan 8 from the interior air intake port 11, enters the exhaust chamber of the fan 8, passes through the evaporator 7, and returns to the driver's compartment from the cold air chamber 102. Traditional parking air conditioners also have an internal circulation function.

[0031] like Figure 3As shown, further, when the parking air conditioner 12 adopts the external circulation mode, the exhaust damper 5 closes the exhaust port 4, and the internal air intake damper 10 closes the indoor air intake port 11; the external air intake port 2 and the evaporator air intake port 6 are opened, and the external air is discharged from the indoor air outlet 9 through the fan 8 and the evaporator 7. The external air enters the intake chamber of the fan 8 from the external air intake port 2, enters the exhaust chamber of the fan 8 through the fan 8, and then returns to the driver's cab from the cold air chamber 102 after passing through the evaporator 7.

[0032] The parking air conditioner 12 of this application can also achieve an external circulation mode by switching the air damper. The external circulation mode can draw in outdoor air and improve the air quality in the driver's cabin. In particular, when the driver and passengers are resting or sleeping in the driver's cabin for a long time, the indoor air quality will deteriorate, which will affect people's health and rest quality.

[0033] like Figure 4 As shown, further, when the parking air conditioner 12 adopts the mixed internal and external circulation mode, the exhaust damper 5 closes the exhaust port 4, while the outside air inlet 2, the interior air inlet 11, and the evaporator air inlet 6 are opened. Outside air and interior air are discharged from the interior air outlet 9 through the fan 8 and the evaporator 7. In the mixed internal and external circulation mode, air is input from two paths (outside and inside the driver's cabin). The mixed internal and external circulation mode is mainly suitable for situations where the outside temperature is suitable.

[0034] The parking air conditioner 12 of this application can also realize an internal and external mixed circulation mode through the air damper switching. The internal and external mixed circulation mode can partially circulate the internal air and partially draw in the outdoor air, which can save energy and improve the air quality in the driver's cabin, making it cost-effective.

[0035] like Figure 5 As shown, further, when the parking air conditioner 12 is in exhaust mode, the external air intake damper 3 closes the external air intake port 2, the exhaust damper 5 closes the evaporator air intake port 6, and both the interior air intake port 11 and the exhaust port 4 are open. The air in the driver's cabin is discharged from the exhaust port 4 through the fan 8. The exhaust mode is mainly suitable for situations where there is an odor or obvious water vapor in the driver's cabin.

[0036] The parking air conditioner 12 of this application can also realize the exhaust mode through the air damper switching. The exhaust reliability is good. Unlike traditional parking air conditioners, there is no need to open a special exhaust hole on the top of the cab, which improves the sealing of the cab. At the same time, it can also exhaust humid air when needed. Water vapor (water vapor produced by boiling water and cooking) and smoke (caused by smoking) in the cab are exhausted to the outside of the cab through the parking air conditioner, which provides a high level of comfort.

[0037] In one embodiment, the parking air conditioner 12 further includes a temperature sensor mounted outside the outside air intake 2 and connected to the vehicle controller. The parking air conditioner 12 also includes an automatic mode, in which the exhaust damper 5 always closes the exhaust port 4.

[0038] When the temperature detected by the temperature sensor exceeds a first temperature threshold, the external air intake damper 3 closes the external air intake port 2, the internal air intake damper 10 opens the internal air intake port 11, and the parking air conditioner 12 adopts internal circulation mode. At this time, the outside temperature is extremely high, and adopting internal circulation mode is more energy-efficient. The first temperature threshold can be 37°C.

[0039] When the temperature detected by the temperature sensor is lower than the second temperature threshold, the external air intake damper 3 opens the external air intake port 2, the internal air intake damper 10 closes the internal air intake port 11, and the parking air conditioner 12 adopts the external circulation mode. At this time, the outside temperature is more suitable, and adopting the external circulation mode is more energy-efficient. The second temperature threshold can be 27°C.

[0040] When the temperature sensor reading is between the first and second temperature thresholds, the external air intake damper 3 opens, the internal air intake damper 10 opens, and the parking air conditioner 12 adopts a mixed internal and external circulation mode. At this time, the outside temperature is neither too high nor too low, allowing for mixed internal and external circulation, which saves energy and allows for air exchange with the outside. In automatic mode, the parking air conditioner of this application can automatically switch between internal circulation mode, external circulation mode, and mixed internal and external circulation mode according to the outside temperature, improving air conditioning comfort and reducing fuel consumption.

[0041] like Figure 6 As shown, this application also discloses an embodiment of a refrigerated cab, wherein a roof panel 13 is provided on the top of the refrigerated cab, and the aforementioned parking air conditioner 12 is installed on the outer surface of the roof panel 13.

[0042] The refrigerated cab of this application has a parking air conditioner 12 that occupies the external space of the cab. Compared with the transmission parking air conditioner, the cab space is larger, and it also has multiple different air circulation modes.

[0043] Regarding the refrigerated cab, further, the four air inlets are: an outside air inlet 2, an exhaust outlet 4, an evaporator air inlet 6, and an interior air inlet 11. The outside air inlet 2 allows outside air to enter, the exhaust outlet 4 discharges air to the outside, the evaporator air inlet 6 allows air from the ambient temperature chamber 101 to flow into the evaporator 7, and the interior air inlet 11 allows air from the cab to flow into the ambient temperature chamber 101. An openable and closable outside air inlet damper 3 is installed at the outside air inlet 2, used to close or open it. A shared exhaust damper 5 is installed between the exhaust outlet 4 and the evaporator air inlet 6, used to close either the exhaust outlet 4 or the evaporator air inlet 6. When the exhaust damper 5 closes either the exhaust outlet 4 or the evaporator air inlet 6, the other outlet is open. An interior air inlet damper 10 is installed at the interior air inlet 11, and the cold air chamber 102 includes an interior air outlet 9. The system offers various air circulation modes, including recirculation mode, external circulation mode, mixed recirculation mode, and exhaust mode. The parking air conditioner in this application switches between different air circulation modes by controlling the opening and closing of various air dampers.

[0044] like Figure 2 As shown, further, when the parking air conditioner 12 adopts the internal circulation mode, the external air intake damper 3 closes the external air intake port 2, and the exhaust damper 5 closes the exhaust port 4; the evaporator air intake port 6 and the interior air intake port 11 are open; the air in the driver's compartment passes through the fan 8 and the evaporator 7 and is discharged from the interior air outlet 9. The air in the driver's compartment enters the intake chamber of the fan 8 from the interior air intake port 11, enters the exhaust chamber of the fan 8, passes through the evaporator 7, and returns to the driver's compartment from the cold air chamber 102. Traditional parking air conditioners also have an internal circulation function.

[0045] like Figure 3 As shown, further, when the parking air conditioner 12 adopts the external circulation mode, the exhaust damper 5 closes the exhaust port 4, and the internal air intake damper 10 closes the indoor air intake port 11; the external air intake port 2 and the evaporator air intake port 6 are opened, and the external air is discharged from the indoor air outlet 9 through the fan 8 and the evaporator 7. The external air enters the intake chamber of the fan 8 from the external air intake port 2, enters the exhaust chamber of the fan 8 through the fan 8, and then returns to the driver's cab from the cold air chamber 102 after passing through the evaporator 7.

[0046] The parking air conditioner 12 of this application can also achieve an external circulation mode by switching the air damper. The external circulation mode can draw in outdoor air and improve the air quality in the driver's cabin. In particular, when the driver and passengers are resting or sleeping in the driver's cabin for a long time, the indoor air quality will deteriorate, which will affect people's health and rest quality.

[0047] like Figure 4As shown, further, when the parking air conditioner 12 adopts the mixed internal and external circulation mode, the exhaust damper 5 closes the exhaust port 4, while the outside air inlet 2, the interior air inlet 11, and the evaporator air inlet 6 are opened. Outside air and interior air are discharged from the interior air outlet 9 through the fan 8 and evaporator 7. In the mixed internal and external circulation mode, air is input from two paths (external and interior). This mode is mainly suitable for situations where the external temperature is suitable. The parking air conditioner 12 of this application can also achieve the mixed internal and external circulation mode through damper switching. This mode allows for partial internal circulation and partial intake of outside air, saving energy and improving the air quality inside the driver's cabin, resulting in high cost-effectiveness.

[0048] like Figure 5 As shown, further, when the parking air conditioner 12 adopts the exhaust mode, the external air intake damper 3 closes the external air intake port 2, the exhaust damper 5 closes the evaporator air intake port 6, and both the indoor air intake port 11 and the exhaust port 4 are open. The air in the driver's cab is discharged from the exhaust port 4 through the fan 8. The exhaust mode is mainly suitable for situations where there is an odor or obvious water vapor in the driver's cab. The parking air conditioner 12 of this application can also achieve the exhaust mode through damper switching. The exhaust reliability is good. Unlike traditional parking air conditioners, there is no need to open a special exhaust port on the top of the driver's cab, which improves the sealing of the driver's cab. At the same time, it can also discharge humid air when needed, and discharge water vapor (water vapor produced by boiling water and cooking), smoke (caused by smoking) in the driver's cab to the outside of the driver's cab through the parking air conditioner, which provides a high level of comfort.

[0049] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0050] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A multi-functional parking air conditioner, comprising a fan (8) and an evaporator (7), characterized in that: The parking air conditioner (12) also includes a sealed housing, which is separated by an evaporator (7) to form a normal temperature chamber (101) and a cold air chamber (102); the fan (8) is disposed in the normal temperature chamber (101), which is provided with four air ports, which are respectively used to draw air from the room, draw air from the outside, exhaust air to the outside, and exhaust air to the evaporator (7); the cold air chamber (102) is provided with one air port for exhausting air to the room; each air port is provided with a corresponding damper; the parking air conditioner (12) switches between opening and closing the dampers to form a variety of different air circulation modes, including but not limited to internal circulation; The four air inlets are an external air inlet (2), an exhaust outlet (4), an evaporator air inlet (6), and an indoor air inlet (11); an openable and closable external air inlet damper (3) is installed at the external air inlet (2), a shared blow-out damper (5) is installed between the exhaust outlet (4) and the evaporator air inlet (6), and an internal air inlet damper (10) is installed at the indoor air inlet (11); the cold air chamber (102) includes an indoor air outlet (9); the various air circulation modes include an internal circulation mode, an external circulation mode, an internal and external mixed circulation mode, and an exhaust mode; The parking air conditioner also includes a deflector plate (1011), which divides the ambient temperature cavity (101) into an air intake cavity and an air outlet cavity of the fan (8). The external air intake port (2) is located at the edge of the air intake cavity; the exhaust port (4) and the evaporator air intake port (6) are located at the edge of the air outlet cavity; the deflector plate (1011) includes a straight section and an arc section. The arc section is wrapped around the fan (8) and has a ventilation port at its bottom that connects the air intake cavity and the air outlet cavity. When the parking air conditioner (12) adopts the external circulation mode, the exhaust damper (5) closes the exhaust port (4), and the internal air intake damper (10) closes the indoor air intake port (11); the external air intake port (2) and the evaporator air intake port (6) are opened, and the external air is discharged from the indoor air outlet (9) through the fan (8) and the evaporator (7); When the parking air conditioner (12) is in exhaust mode, the external air intake damper (3) closes the external air intake port (2), the exhaust damper (5) closes the evaporator air intake port (6), and the indoor air intake port (11) and exhaust port (4) are both opened. The air in the driver's cab is discharged from the exhaust port (4) through the fan (8). When the parking air conditioner (12) adopts the internal circulation mode, the external air intake damper (3) closes the external air intake port (2), and the exhaust damper (5) closes the exhaust port (4); the evaporator air intake port (6) and the indoor air intake port (11) are opened; the air in the driver's cab is discharged from the indoor air outlet (9) through the fan (8) and the evaporator (7); When the parking air conditioner (12) adopts the mixed internal and external circulation mode, the exhaust damper (5) closes the exhaust port (4), and the external air inlet (2), the indoor air inlet (11) and the evaporator air inlet (6) are opened. The external air and the air in the driver's cabin are discharged from the indoor air outlet (9) through the fan (8) and the evaporator (7). The external air inlet (2) and the exhaust outlet (4) are located in the upper region of the ambient temperature cavity (101), and the indoor air inlet (11) is located at the bottom of the ambient temperature cavity (101).

2. The multi-functional parking air conditioner as described in claim 1, characterized in that: The The parking air conditioner (12) also includes several stepper motors, which are connected to all the dampers and all the stepper motors are connected to the vehicle controller.

3. A multi-functional parking air conditioner as described in claim 1, characterized in that: The parking air conditioner (12) also includes a temperature sensor, which is installed outside the outside air inlet (2) and connected to the vehicle controller. The parking air conditioner (12) also includes an automatic mode. In the automatic mode, the exhaust damper (5) closes the exhaust port (4). When the temperature detected by the temperature sensor is higher than the first temperature threshold, the external air intake damper (3) closes the external air intake port (2), and the internal air intake damper (10) opens the indoor air intake port (11). The parking air conditioner (12) adopts the internal circulation mode. When the temperature detected by the temperature sensor is lower than the second temperature threshold, the external air intake damper (3) opens the external air intake port 2, the internal air intake damper (10) closes the indoor air intake port 11, and the parking air conditioner (12) adopts the external circulation mode. When the temperature of the temperature sensor is between the first temperature threshold and the second temperature threshold, the external air intake damper (3) opens, the internal air intake damper (10) opens, and the parking air conditioner (12) adopts the internal and external mixed circulation mode.

4. A refrigerated driver's cab, characterized in that: The top of the refrigerated cab is provided with a roof panel (13), and the outer surface of the roof panel (13) is equipped with a parking air conditioner (12) as described in any one of claims 1-3.

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