WO2023103370A1 - 车载空调机组及其控制方法 - Google Patents
车载空调机组及其控制方法 Download PDFInfo
- Publication number
- WO2023103370A1 WO2023103370A1 PCT/CN2022/104502 CN2022104502W WO2023103370A1 WO 2023103370 A1 WO2023103370 A1 WO 2023103370A1 CN 2022104502 W CN2022104502 W CN 2022104502W WO 2023103370 A1 WO2023103370 A1 WO 2023103370A1
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- WIPO (PCT)
- Prior art keywords
- vehicle
- air inlet
- heat exchange
- air
- exchange channel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/24—Devices purely for ventilating or where the heating or cooling is irrelevant
- B60H1/26—Ventilating openings in vehicle exterior; Ducts for conveying ventilating air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
Definitions
- the invention belongs to the technical field of vehicle air conditioners, and specifically provides a vehicle air conditioner unit and a control method thereof.
- Most of the existing vehicles are equipped with on-board air-conditioning units to adjust the temperature and humidity inside the car to provide users with a more comfortable riding environment, thereby reducing the driver's fatigue and ensuring driving safety.
- the vehicle-mounted air-conditioning unit when the user uses the vehicle-mounted air-conditioning unit during driving, the vehicle-mounted battery will be in a state of continuous discharge and charge, which will easily shorten the life of the vehicle-mounted battery.
- the energy consumption of the vehicle will be too high, which will bring a bad user experience to the user.
- the present invention aims to solve the above-mentioned technical problems, that is, to solve the problems of high energy consumption and short service life of the vehicle-mounted air-conditioning unit in the prior art.
- the present invention provides a method for controlling a vehicle-mounted air-conditioning unit
- the vehicle-mounted air-conditioning unit includes an in-vehicle unit, an out-of-vehicle unit, and a refrigerant circulation circuit arranged between the in-vehicle unit and the out-vehicle unit
- the outboard unit includes a casing and an outside fan
- a heat exchange passage is formed in the casing
- an evaporator and a compressor are sequentially arranged on the refrigerant circulation circuit
- the evaporator The condenser is located in the inside unit, the condenser and the outside fan are arranged in the heat exchange channel
- the casing is also provided with an air outlet, a first air inlet and a second air inlet, so The air outlet is connected to one end of the heat exchange channel, the second air inlet is located on the airflow path during the running of the vehicle, and the first air inlet and the
- the other end of the heat exchange channel is connected, and the control method includes: after the vehicle-mounted air conditioner unit receives a start-up heat exchange command, controlling the first air inlet to communicate with the heat exchange channel; Afterwards, the temperature inside the vehicle is obtained; according to the temperature inside the vehicle, selectively control the communication between the second air inlet and the heat exchange channel.
- the step of "selectively controlling the communication between the second air inlet and the heat exchange channel according to the temperature inside the vehicle” specifically includes: calculating the temperature inside the vehicle and the target temperature The absolute value of the difference; according to the absolute value of the difference between the interior temperature and the target temperature, selectively control the communication between the second air inlet and the heat exchange channel.
- the step of "selectively controlling the communication between the second air inlet and the heat exchange channel according to the absolute value of the difference between the temperature inside the vehicle and the target temperature” includes : if the absolute value of the difference between the temperature inside the vehicle and the target temperature is less than a preset value, then further acquire the displacement speed of the vehicle; selectively control the second air inlet and the target temperature according to the displacement speed of the vehicle The heat exchange channels are connected.
- the step of "selectively controlling the communication between the second air inlet and the heat exchange passage according to the absolute value of the difference between the interior temperature of the vehicle and the target temperature" is further The method includes: if the absolute value of the difference between the vehicle interior temperature and the target temperature is greater than or equal to the preset value, then not controlling the communication between the second air inlet and the heat exchange channel.
- the step of "selectively controlling the second air inlet to communicate with the heat exchange channel according to the displacement speed of the vehicle” includes: if the displacement speed of the vehicle is greater than or equal to the preset displacement speed, the second air inlet is controlled to communicate with the heat exchange channel.
- the step of "selectively controlling the second air inlet to communicate with the heat exchange passage according to the displacement speed of the vehicle” further includes: if the displacement speed of the vehicle is less than The preset displacement speed does not control the communication between the second air inlet and the heat exchange channel.
- control method when the second air inlet is in communication with the heat exchange channel, the control method further includes: acquiring the temperature inside the vehicle again; temperature, selectively controlling the communication between the first air inlet and the heat exchange channel.
- the step of "selectively controlling the communication between the first air inlet and the heat exchange passage according to the re-obtained temperature inside the vehicle” includes: When running in the cooling mode, if the temperature in the vehicle obtained again rises, the first air inlet is controlled to communicate with the heat exchange channel; If the temperature inside the vehicle is detected to drop, the first air inlet is controlled to communicate with the heat exchange channel.
- the step of "selectively controlling the communication between the first air inlet and the heat exchange passage according to the temperature inside the vehicle obtained again” further includes: When the unit is operating in cooling mode, if the acquired temperature inside the vehicle does not rise again, the communication between the first air inlet and the heat exchange channel is not controlled; when the vehicle-mounted air conditioner unit is operating in heating mode, If the acquired temperature inside the vehicle does not drop, the communication between the first air inlet and the heat exchange passage is not controlled.
- the present invention also provides a vehicle-mounted air-conditioning unit, the vehicle-mounted air-conditioning unit includes a controller, and the controller is capable of executing the control method described in any one of the above preferred technical solutions.
- the present invention can selectively control the communication between the second air inlet and the heat exchange channel according to the temperature inside the vehicle, so as to ensure the operation stability of the vehicle-mounted air-conditioning unit and also It can make full use of the naturally flowing air passing through the casing during vehicle running to exchange heat for the condenser, reduce the frequency of use of the fan outside the vehicle, and thus effectively reduce the number of charge and discharge times of the vehicle battery and achieve protection
- the vehicle-mounted battery can prolong the service life, and can also effectively reduce the energy consumption of the vehicle-mounted air-conditioning unit.
- Fig. 1 is the structural representation of vehicle-mounted air-conditioning unit of the present invention
- Fig. 2 is the structural representation of the outboard machine of the present invention
- Fig. 3 is a structural schematic diagram of the outdoor unit of the present invention when it is in the active air supply mode
- Fig. 4 is a schematic structural view of the outdoor unit of the present invention when it is in the natural air supply mode
- Fig. 5 is the flow chart of main steps of the control method of the present invention.
- Fig. 6 is the specific step flowchart of the preferred embodiment of control method of the present invention.
- the terms “upper”, “lower”, “left”, “right”, “inner”, “outer”, “front”, “back” etc. indicate directions or positions The terms of the relationship are based on the orientation or positional relationship shown in the drawings, which are for convenience of description only, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be interpreted as Limitations on the Invention.
- the terms “first” and “second” are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.
- the terms “connected”, “connected” and “connected” should be understood in a broad sense, for example, it can be a fixed connection, or It can be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components.
- the specific meanings of the above terms in the present invention can be understood according to specific situations.
- Figure 1 is a schematic structural view of the vehicle-mounted air-conditioning unit of the present invention
- Figure 2 is a structural schematic view of the outdoor unit of the present invention
- the vehicle-mounted air-conditioning unit of the present invention includes an in-vehicle unit (not shown in the figure), an out-of-vehicle unit 1, and a refrigerant circulation circuit 2 arranged between the in-vehicle unit and the out-of-vehicle unit 1
- the outboard unit 1 includes a casing 11 and an outside fan 12. A heat exchange channel is formed in the casing 11.
- a condenser 21, a throttling member 22, an evaporator 23, a compressor 24 and The four-way valve 25 and the evaporator 23 are located in the interior unit, and the condenser 21 and the exterior fan 12 are disposed in the heat exchange channel.
- the casing 11 is also provided with an air outlet 111, a first air inlet 112 and a second air inlet 113, the air outlet 111 communicates with one end of the heat exchange channel, and the second air inlet 113 is located in the airflow path during the running of the vehicle , and the first air inlet 112 and the second air inlet 113 are arranged to be able to alternatively communicate with the other end of the heat exchange channel.
- the vehicle-mounted air-conditioning unit of the present invention can make full use of the naturally flowing air passing through the casing 11 during the running of the vehicle so as to exchange heat for the condenser 21 and reduce the frequency of use of the fan 12 outside the vehicle, thereby effectively
- the charging and discharging times of the on-board battery are reduced to achieve the purpose of protecting the on-board battery and prolonging its service life, and can also effectively reduce the energy consumption of the on-board air-conditioning unit, providing users with a good sense of use experience.
- the present invention does not make any restrictions on the specific structure of the in-vehicle unit, nor does it make any restrictions on the specific types and specific structures of the condenser 21, the throttling member 22, the evaporator 23 and the compressor 24.
- 21 and evaporator 23 can be a coil heat exchanger, a fin heat exchanger, or a shell-and-tube heat exchanger;
- the throttling member 22 can be a throttling capillary, or an electronic expansion valve. It is not restrictive, as long as the vehicle-mounted air-conditioning unit can realize heat exchange through the internal unit, the external unit 1 and the refrigerant circulation circuit 2 arranged between the internal unit and the external unit 1, the technical Personnel can set it by themselves according to the actual usage.
- the present invention does not impose any restrictions on the specific shape of the casing 11, which can be circular, square, or irregular, and technicians can design it by themselves according to actual usage conditions.
- the shape of the casing 11 is set according to the specific location of the outdoor unit 1 in the vehicle, so as to utilize the space of the vehicle more effectively.
- the outboard unit 1 further includes a shielding member 13, which is configured to move between the first air inlet 112 and the second air inlet 113 so that the first air inlet 112 and the second air inlet One of the air outlets 113 can communicate with the other end of the heat exchange channel.
- a shielding member 13 which is configured to move between the first air inlet 112 and the second air inlet 113 so that the first air inlet 112 and the second air inlet One of the air outlets 113 can communicate with the other end of the heat exchange channel. It should be noted that the present invention does not impose any restrictions on the specific structure and specific shape of the shielding member 13, as long as the shielding member 13 can make the first air inlet 112 and the second air inlet 113 alternatively connect with the other end of the heat exchange passage. It only needs to be connected, and technicians can set it by themselves according to the actual usage.
- the shielding member 13 is rotatably connected to the casing 11 , and a part of the casing 11 can be rotated driven by the shielding member 13 so that the second air inlet 113 can be opened or closed.
- a rotating member 131 is provided at the connection between the shielding member 13 and the casing 11 , so that the shielding member 13 can move between the first air inlet 112 and the second air inlet 113 in a rotational manner.
- the present invention does not impose any restrictions on the specific structure of the rotating member 131. It can be a rotating hinge structure or a rotating spring structure. .
- the blocking member 13 is also provided with a first engaging structure 132 and a second engaging structure 133, the first engaging structure 132 can be engaged with the first air inlet 112 to seal the first air inlet 112, and the second engaging structure 133 can Engage with the second air inlet 113 to seal the second air inlet 113 .
- the first joint structure 132 and the second joint structure 133 can be shielding plates or shielding These are not limiting, and technicians can set them by themselves according to the actual shielding conditions of the first joint structure 132 and the second joint structure 133 .
- both the first joint structure 132 and the second joint structure 133 are baffle plates, so as to effectively ensure the sealing of the first air inlet 112 and the second air inlet 113, and effectively ensure that the heat exchange channel When connected with the second air inlet 113, the first air inlet 112 will not leak air, thereby effectively reducing the frequency of use of the fan 12 outside the vehicle, ensuring the service life of the vehicle battery, and effectively reducing the energy consumption of the vehicle air conditioner unit , to enhance the user experience.
- first engaging structure 132 and one end of the second engaging structure 133 are connected and form an obtuse angle, so that the shielding member 13 can alternatively shield the first air inlet 112 and the second air inlet 113 .
- the present invention does not impose any limitation on the specific angle formed between the first joint structure 132 and the second joint structure 133, and technicians can set the first joint structure 132 and the second joint structure 133 according to the actual joint situation. angle between.
- one end of the second engaging structure 133 away from the first engaging structure 132 is connected to the rotating member 131, and during the rotation of the second engaging structure 133, the first engaging structure 132 rotates with the second engaging structure 133 to realize the second engaging structure 132.
- the first air inlet 112 and the second air inlet 113 are opened or closed.
- the end of the part of the housing 11 that rotates with the shielding member 13 away from the rotating member 131 is also provided with a locking member 134, and the locking member 134 can lock the housing that rotates with the shielding member 13. 11, to realize the sealing of the second air inlet 113.
- the locking member 134 can be a magnetic locking structure or a snap locking structure. Set it yourself according to the actual locking situation.
- the outdoor fan 12 is set to be turned on only when the first air inlet 112 is in communication with the heat exchange channel, so that the vehicle air conditioner unit can make full use of the natural flow of air passing through the casing 11 during the running of the vehicle to the condenser 21. Carry out heat exchange, reduce the frequency of use of the fan 12 outside the vehicle, and then not only can effectively reduce the charging and discharging times of the vehicle battery, achieve the purpose of protecting the vehicle battery and prolonging the service life, but also can effectively reduce the energy consumption of the vehicle air conditioner unit, giving Provide users with a good sense of experience.
- the first air inlet 112 is arranged on the side of the casing 11
- the second air inlet 113 is arranged on the top of the casing 11
- the second air inlet 113 forms an included angle with the traveling direction of the vehicle. , so as to effectively utilize the naturally flowing air passing through the casing 11 during the running of the vehicle, thereby effectively protecting the vehicle battery and reducing the energy consumption of the vehicle air conditioner unit.
- the number of the first air inlets 112 is two, and the two first air inlets 112 are respectively arranged on two sides of the casing 11 so as to effectively exchange heat for the condenser 21 .
- the present invention does not impose any limitation on the specific number and locations of the air outlets 111 , the first air inlets 112 and the second air inlets 113 .
- the present invention does not impose any restrictions on the specific structure and shape of the air outlet 111, the first air inlet 112 and the second air inlet 113, and the air outlet 111, the first air inlet 112 and the second air inlet 113 can be a mesh structure , can also be a single hole-like structure, which is not restrictive, and technicians can set it according to actual usage conditions.
- the condenser 21 and the outdoor fan 12 are sequentially arranged in the heat exchange passage along the direction of the heat exchange airflow, and the outdoor fan 12 is located near the air outlet 111, so as to effectively ensure the heat exchange passage to the condenser 21. heat exchange effect, thereby effectively reducing the energy consumption of the vehicle-mounted air-conditioning unit, protecting the vehicle-mounted battery, and ensuring the service life of the vehicle-mounted battery.
- the present invention does not impose any restrictions on the specific installation positions of the condenser 21 and the outside fan 12, and the condenser 21 and the outside fan 12 can also be located in other positions in the outside unit 1, and technicians can adjust them according to actual usage conditions. Set it yourself.
- the outboard unit 1 also includes a temperature sensor 14 and a controller 15, the temperature sensor 14 can sense the temperature of the condenser 21, and the controller 15 can control the operating state of the vehicle air conditioner unit, for example: Control the frequency of the compressor 24, the rotational speed and operating status of the outdoor fan 12, etc.
- the temperature sensor 14 is located in the condenser 21, and the controller 15 is located near the compressor 24.
- the specific locations of the temperature sensor 14 and the controller 15 are not limiting.
- the present invention does not impose any restrictions on the specific structure and model of the controller 15, and the controller 15 can be the original controller of the vehicle-mounted air-conditioning unit, or it can be a compression controller for performing the present invention.
- the controller is set separately by the machine frequency control method, and technicians can set the structure and model of the controller 15 by themselves according to actual use requirements.
- the outboard unit 1 also includes a baffle 16, one end of which is connected to the rotating member 131, and the other end is connected to the casing 11, so as to isolate the compressor 24 and the controller 15, thereby effectively avoiding the heat exchange
- the air in the channel affects the life of the compressor 24 and the controller 15 .
- the vehicle-mounted air-conditioning unit includes an active air-supply mode and a natural air-supply mode. Based on the specific structure of the above-mentioned vehicle-mounted air-conditioning unit, the working principles of the active air-supply mode and the natural air-supply mode of the vehicle-mounted air-conditioning unit as follows:
- FIG. 3 is a schematic structural view of the outdoor unit of the present invention when it is in the active air supply mode.
- the locking member 134 in the active air supply mode, the locking member 134 is in a closed state, the second engaging structure 133 and part of the casing 11 jointly shield the second air inlet 113 , and the first engaging structure 132 and the first
- the air inlet 112 is in a separated state, and the air of the outdoor unit 1 can enter the heat exchange channel from the first air inlet 112 to exchange heat for the condenser 21.
- the air is drawn out by the fan 12 outside the vehicle to the air outlet 111, and then discharged to the outside of the vehicle.
- FIG. 4 is a schematic structural diagram of the outdoor unit of the present invention when it is in the natural air supply mode.
- the locking member 134 in the case of the natural air blowing mode, the locking member 134 is in an open state, so that part of the casing 11 can rotate clockwise with the shielding member 13 under the rotation of the rotating member 131, and the part of the casing 11 Rotate with the second engaging structure 133 to open the second air inlet 113 , meanwhile the first engaging structure 132 rotates to the first air inlet 112 and just covers the first air inlet 112 .
- the fan 12 outside the vehicle is in the closed state, and the air flowing naturally during the running of the vehicle enters the heat exchange passage through the second air inlet 113 to exchange heat for the condenser 21, and the air after heat exchange passes through the outside of the vehicle.
- the holes in the blower fan 12 are discharged to the outside of the car by the air outlet 111.
- the vehicle-mounted air-conditioning unit can switch between the active air supply mode and the natural air-supply mode, when the active air supply mode is not needed, the fan 12 outside the vehicle is in a closed state, and the vehicle-mounted air-conditioning unit can make full use of the vehicle’s driving mode.
- the naturally flowing air passing through the casing 11 facilitates heat exchange for the condenser 21 and reduces the frequency of use of the fan 12 outside the vehicle, thereby effectively reducing the charge and discharge times of the vehicle battery, protecting the vehicle battery, and prolonging the life of the vehicle battery.
- the purpose of the service life can also effectively reduce the energy consumption of the vehicle-mounted air-conditioning unit, and provide users with a good use experience.
- FIG. 5 is a flow chart of the main steps of the control method of the present invention. As shown in Figure 5, based on the vehicle-mounted air-conditioning unit described in the above embodiments, the control method of the present invention mainly includes the following steps:
- S3 selectively controlling the communication between the second air inlet and the heat exchange channel according to the temperature inside the vehicle.
- step S1 after the vehicle-mounted air-conditioning unit receives the start-up heat exchange command, the controller 15 controls the first air inlet 112 to communicate with the heat exchange channel, that is, controls the vehicle-mounted air-conditioning unit to be in active air supply mode. model.
- the present invention does not impose any restrictions on the specific form of sending the start-up heat exchange command, which can be a text command, a language command, or a gesture command; it can be communicated with the vehicle-mounted air conditioner unit It can also be sent through the mobile terminal of the vehicle, and it can also be sent through the control terminal of the vehicle. This is not restrictive, and technicians can set it by themselves according to actual usage needs.
- steps S2 and S3 after the first air inlet 112 communicates with the heat exchange channel for a preset period of time, the temperature inside the vehicle is obtained, and the second air inlet 113 is selectively controlled according to the obtained temperature inside the vehicle. It communicates with the heat exchange channel, that is, selectively controls the on-vehicle air-conditioning unit to switch to the natural air supply mode, so as to effectively utilize the naturally flowing air passing through the casing 11 to exchange heat for the condenser 21 during the running of the vehicle, Reducing the frequency of use of the fan 12 outside the vehicle can effectively reduce the charging and discharging times of the vehicle-mounted battery, achieve the purpose of protecting the vehicle-mounted battery and prolong the service life, and can also effectively reduce the energy consumption of the vehicle-mounted air-conditioning unit.
- the present invention does not impose any restrictions on the specific way of obtaining the temperature in the car, which can be determined by a temperature sensor installed in the car according to the average value of the temperature in the car in different time periods, or it can be determined in real time in the car.
- the temperature is not limiting; preferably, the temperature inside the vehicle is the real-time temperature inside the vehicle, so as to change the operation mode of the vehicle-mounted air-conditioning unit in time to reduce energy consumption.
- the present invention does not impose any restrictions on the method of determining the preset duration, which can be set by the user, or can be set according to the actual operating conditions of the vehicle-mounted air-conditioning unit and the vehicle, which is not restrictive of.
- the present invention does not impose any restrictions on the specific judgment method for the vehicle-mounted air-conditioning unit to switch to the natural air supply mode according to the temperature inside the vehicle, which can be compared with the target temperature by the temperature inside the vehicle, or by The temperature inside the vehicle before and after switching is compared; in addition, it can be judged only by the temperature inside the vehicle, or other parameters, such as the displacement speed of the vehicle, can be introduced to make a joint judgment.
- the usage is set by itself.
- FIG. 6 is a flow chart of specific steps of a preferred embodiment of the control method of the present invention. As shown in Figure 6, based on the vehicle-mounted air-conditioning unit described in the above-mentioned preferred embodiment, the preferred embodiment of the control method of the present invention specifically includes the following steps:
- step S101 after the vehicle-mounted air-conditioning unit receives the start-up heat exchange instruction, the controller 15 controls the first air inlet 112 to communicate with the heat exchange channel, that is, controls the vehicle-mounted air-conditioning unit to be in active air supply mode. model.
- the present invention does not impose any restrictions on the specific form of sending the start-up heat exchange command, which can be a text command, a language command, or a gesture command; it can be communicated with the vehicle-mounted air conditioner unit It can also be sent through the mobile terminal of the vehicle, and it can also be sent through the control terminal of the vehicle. This is not restrictive, and technicians can set it by themselves according to actual usage needs.
- step S102 after the first air inlet 112 communicates with the heat exchange channel for a preset period of time, the temperature inside the vehicle is obtained, and the connection between the second air inlet 113 and the second air inlet 113 is selectively controlled according to the temperature inside the vehicle.
- the heat exchange channel is connected, that is, selectively controlling the vehicle-mounted air-conditioning unit to switch to the natural air supply mode, so as to effectively use the naturally flowing air passing through the casing 11 to exchange heat for the condenser 21 during vehicle driving, and reduce the temperature of the vehicle outside.
- the frequency of use of the fan 12 can effectively reduce the charging and discharging times of the vehicle battery, thereby achieving the purpose of protecting the vehicle battery and prolonging the service life, and can also effectively reduce the energy consumption of the vehicle air conditioner unit.
- the present invention does not impose any restrictions on the specific way of obtaining the temperature in the car, which can be determined by a temperature sensor installed in the car according to the average value of the temperature in the car in different time periods, or it can be determined in real time in the car.
- the temperature is not limiting; preferably, the temperature inside the vehicle is the real-time temperature inside the vehicle, so as to change the operation mode of the vehicle-mounted air-conditioning unit in time to reduce energy consumption.
- the present invention does not impose any restrictions on the method of determining the preset duration, which can be set by the user, or can be set according to the actual operating conditions of the vehicle-mounted air-conditioning unit and the vehicle, which is not restrictive of.
- the present invention does not impose any restrictions on the specific judgment method for the vehicle-mounted air-conditioning unit to switch to the natural air supply mode according to the temperature inside the vehicle, which can be compared with the target temperature by the temperature inside the vehicle, or by The temperature inside the vehicle before and after switching is compared; in addition, it can be judged only by the temperature inside the vehicle, or other parameters, such as the displacement speed of the vehicle, can be introduced to make a joint judgment.
- the usage is set by itself.
- the judgment is made based on the difference between the temperature inside the vehicle and the target temperature.
- step S103 calculate the absolute value of the difference between the vehicle interior temperature and the target temperature, and selectively control the The second air inlet communicates with the heat exchange channel. Further, in steps S104 and S105, if the absolute value of the difference between the interior temperature and the target temperature is greater than or equal to the preset value, the second air inlet 113 and the heat exchange channel are not controlled. communication, that is, continue to keep the vehicle-mounted air-conditioning unit in the active air supply mode; on the contrary, if the absolute value of the difference between the vehicle interior temperature and the target temperature is less than a preset value, then further obtain the displacement speed of the vehicle, and According to the displacement speed of the vehicle, the second air inlet 113 is selectively controlled to communicate with the heat exchange passage.
- the present invention does not impose any restrictions on the specific determination methods of the target temperature and the preset value, which can be set by the user, or according to the actual operating conditions of the vehicle-mounted air-conditioning unit and the vehicle.
- Setting preferably, the target temperature is 20°C, and the preset value is 3°C, so as to ensure the stable operation of the vehicle-mounted air-conditioning unit and switch from the active air supply mode to the natural air supply mode in time , reduce energy consumption, and ensure the service life of the vehicle battery.
- steps S106 and S107 if the displacement speed of the vehicle is less than the preset displacement speed, the second air inlet 113 is not controlled to communicate with the heat exchange channel; otherwise, if the displacement speed of the vehicle is greater than or equal to the preset displacement speed, then control the second air inlet 113 to communicate with the heat exchange channel, that is, control the vehicle-mounted air-conditioning unit to switch from the active air supply mode to the natural air supply mode, so as to effectively utilize the vehicle The naturally flowing air passing through the casing 11 exchanges heat with the condenser 21 during driving.
- the present invention does not impose any restrictions on the specific way of obtaining the displacement speed of the vehicle, which can be obtained according to the vehicle speed detector set on the vehicle itself, or according to the actual running speed of the vehicle.
- the calculation and acquisition of time and running distance are not restrictive; preferably, the preset displacement speed is 20km/h, so as to effectively meet the needs of users, and effectively reduce the energy consumption of the vehicle-mounted air-conditioning unit, ensuring that the vehicle-mounted battery life.
- the present invention does not impose any restrictions on the method of determining the preset displacement speed, which can be set by the user, or can be set according to the actual operating conditions of the vehicle-mounted air-conditioning unit and the vehicle. The technical personnel can set it by themselves according to the actual situation.
- step S108 when the second air inlet 113 is in communication with the heat exchange channel, that is, when the vehicle-mounted air-conditioning unit is in the natural air supply mode, the temperature inside the vehicle is acquired again, and according to the acquired temperature again According to the temperature inside the vehicle, the first air inlet 112 is selectively controlled to communicate with the heat exchange channel, so as to effectively ensure the actual needs of users. It should be noted that the present invention does not impose any restrictions on the timing of re-acquisition of the temperature inside the vehicle.
- the temperature inside the vehicle is obtained again, so as to effectively avoid frequent switching between the active air supply mode and the natural air supply mode of the vehicle air conditioner unit and damage the vehicle air conditioner unit to set the vehicle.
- steps S109 and S110 when the vehicle-mounted air-conditioning unit is in cooling mode, if the acquired temperature inside the vehicle rises again, control the first air inlet 112 to communicate with the heat exchange channel; of course , the first air inlet 112 may be controlled to communicate with the heat exchange channel after the temperature inside the vehicle obtained again rises to a preset temperature rise value, or it may be controlled as long as the temperature inside the vehicle obtained again rises.
- the first air inlet 112 communicates with the heat exchange channel; as a preferred setting method, after the temperature in the vehicle obtained again rises to the preset temperature rise value, the first air inlet 112 and the heat exchange passage can be controlled to communicate with each other.
- the heat exchange channel is connected to effectively prevent the vehicle-mounted air-conditioning unit from frequently switching between the active air supply mode and the natural air supply mode, which may damage the vehicle-mounted air-conditioning unit installed on the vehicle. On the contrary, if the acquired temperature inside the vehicle does not rise again, the communication between the first air inlet 112 and the heat exchange passage is not controlled.
- steps S111 and S112 when the on-vehicle air-conditioning unit is in the heating mode, if the temperature in the vehicle obtained again drops, the first air inlet 112 is controlled to communicate with the heat exchange channel; of course , the first air inlet 112 may be controlled to communicate with the heat exchange channel after the temperature inside the vehicle obtained again drops to a preset cooling value, or the first air inlet 112 may be controlled to communicate with the heat exchange passage as long as the temperature inside the vehicle obtained again drops.
- the first air inlet 112 communicates with the heat exchange channel; as a preferred setting method, the first air inlet 112 and the first air inlet 112 can be controlled to communicate with the heat exchange channel after the temperature in the vehicle obtained again drops to the preset cooling value.
- the heat exchange channel is connected to effectively prevent the vehicle-mounted air-conditioning unit from frequently switching between the active air supply mode and the natural air supply mode, which may damage the vehicle-mounted air-conditioning unit installed on the vehicle. Conversely, if the acquired temperature inside the vehicle does not drop, the communication between the first air inlet 112 and the heat exchange passage is not controlled.
- the present invention does not impose any restrictions on the specific determination methods of the preset temperature rise value and the preset temperature drop value, which can be set by the user, or can be determined according to the actual operation of the vehicle-mounted air-conditioning unit and the vehicle. Circumstances are set, and none of this is restrictive.
- the timing of switching the vehicle-mounted air-conditioning unit to the natural air-supply mode can be determined only by the temperature inside the vehicle, or can be determined by the The temperature inside the vehicle and the displacement speed of the vehicle jointly determine the timing when the vehicle-mounted air-conditioning unit switches to the natural air supply mode; The time when the unit switches to the natural air supply mode, so that on the basis of effectively ensuring the stable operation of the vehicle-mounted air-conditioning unit, it can further reduce energy consumption more effectively, thereby effectively ensuring the service life of the vehicle-mounted battery.
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Abstract
一种车载空调机组及其控制方法，该车载空调机组包括车内机、车外机(1)以及设置在车内机和车外机(1)之间的冷媒循环回路(2)，车外机(1)包括机壳(11)和车外风机(12)，机壳(11)中形成有换热通道，机壳(11)上还设置有出风口(111)、第一进风口(112)和第二进风口(113)，出风口(111)与换热通道的一端相连通，第二进风口(113)位于车辆行驶过程中的气流路径上，第一进风口(112)和第二进风口(113)设置成能够择一与换热通道的另一端相连通。并根据车内温度确定由第一进风口与换热通道连通的状态切换至第二进风口与换热通道连通的状态的时机，利用经过机壳的空气有效降低能耗。
Description
本发明属于车载空调技术领域，具体提供一种车载空调机组及其控制方法。
现有大部分车辆都配置有车载空调机组，以调节车内的温度和湿度，给用户提供更舒适的乘车环境，进而能够降低驾驶员的疲劳强度，保证行车安全。然而，用户在行车过程中使用车载空调机组时，车载电池会处于不断放电和充电的状态，容易缩短车载电池的寿命。此外，现有车载空调由于运行功率较大，还会导致车辆的能耗过高，这些均给用户带来不好的使用体验感。
相应地，本领域需要一种新的车载空调机组及其控制方法来解决上述问题。
发明内容
本发明旨在解决上述技术问题，即，解决现有车载空调机组能耗高、车载电池寿命短的问题。
在第一方面，本发明提供一种车载空调机组的控制方法，所述车载空调机组包括车内机、车外机以及设置在所述车内机和所述车外机之间的冷媒循环回路，所述车外机包括机壳和车外风机，所述机壳中形成有换热通道，所述冷媒循环回路上依次设置有冷凝器、节流构件、蒸发器和压缩机，所述蒸发器位于所述车内机中，所述冷凝器和所述车外风机设置于所述换热通道中，所述机壳上还设置有出风口、第一进风口和第二进风口，所述出风口与所述换热通道的一端相连通，所述第二进风口位于车辆行驶过程中的气流路径上，并且所述第一进风口和所述第二进风口设置成能够择一与所述换热通道的另一端相连通，所述控制方法包 括：在所述车载空调机组接收到开机换热指令后，控制所述第一进风口与所述换热通道连通；经过预设时长后，获取车内温度；根据所述车内温度，选择性地控制所述第二进风口与所述换热通道连通。
在上述控制方法的优选技术方案中，“根据所述车内温度，选择性地控制所述第二进风口与所述换热通道连通”的步骤具体包括：计算所述车内温度与目标温度的差值的绝对值；根据所述车内温度与所述目标温度的差值的绝对值，选择性地控制所述第二进风口与所述换热通道连通。
在上述控制方法的优选技术方案中，“根据所述车内温度与所述目标温度的差值的绝对值，选择性地控制所述第二进风口与所述换热通道连通”的步骤包括：如果所述车内温度与所述目标温度的差值的绝对值小于预设值，则进一步获取车辆的位移速度；根据所述车辆的位移速度，选择性地控制所述第二进风口与所述换热通道连通。
在上述控制方法的优选技术方案中，“根据所述车内温度与所述目标温度的差值的绝对值，选择性地控制所述第二进风口与所述换热通道连通”的步骤还包括：如果所述车内温度与所述目标温度的差值的绝对值大于或等于所述预设值，则不控制所述第二进风口与所述换热通道连通。
在上述控制方法的优选技术方案中，“根据所述车辆的位移速度，选择性地控制所述第二进风口与所述换热通道连通”的步骤包括：如果所述车辆的位移速度大于或等于预设位移速度，则控制所述第二进风口与所述换热通道连通。
在上述控制方法的优选技术方案中，“根据所述车辆的位移速度，选择性地控制所述第二进风口与所述换热通道连通”的步骤还包括：如果所述车辆的位移速度小于所述预设位移速度，则不控制所述第二进风口与所述换热通道连通。
在上述控制方法的优选技术方案中，在所述第二进风口与所述换热通道连通的情形下，所述控制方法还包括：再次获取车内温度；根据再次获取到的所述车内温度，选择性地控制所述第一进风口与所述换热通道连通。
在上述控制方法的优选技术方案中，“根据再次获取到的所述车内 温度，选择性地控制所述第一进风口与所述换热通道连通”的步骤包括：在所述车载空调机组运行制冷工况时，如果再次获取到的所述车内温度上升，则控制所述第一进风口与所述换热通道连通；在所述车载空调机组运行制热工况时，如果再次获取到的所述车内温度下降，则控制所述第一进风口与所述换热通道连通。
在上述控制方法的优选技术方案中，“根据再次获取到的所述车内温度，选择性地控制所述第一进风口与所述换热通道连通”的步骤还包括：在所述车载空调机组运行制冷工况时，如果再次获取到的所述车内温度未上升，则不控制所述第一进风口与所述换热通道连通；在所述车载空调机组运行制热工况时，如果再次获取到的所述车内温度未下降，则不控制所述第一进风口与所述换热通道连通。
在另一方面，本发明还提供一种车载空调机组，所述车载空调机组包括控制器，所述控制器能够执行上述任一项优选技术方案中所述的控制方法。
在采用上述技术方案的情况下，本发明能够根据车辆内部的温度，选择性的控制所述第二进风口与所述换热通道连通，在保证所述车载空调机组运行稳定性的同时，还能够充分利用车辆行驶过程中经过所述机壳的自然流动的空气对所述冷凝器进行换热，降低所述车外风机的使用频率，进而既能够有效减少车载电池的充放电次数，达到保护车载电池、延长使用寿命的目的，还能够有效降低所述车载空调机组的能耗。
下面结合附图来描述本发明的优选实施方式，附图中：
图1是本发明的车载空调机组的结构示意图；
图2是本发明的车外机的结构示意图；
图3是本发明的车外机处于主动送风模式时的结构示意图；
图4是本发明的车外机处于自然送风模式时的结构示意图；
图5是本发明的控制方法的主要步骤流程图；
图6是本发明的控制方法的优选实施例的具体步骤流程图；
附图标记：
1、车外机；
11、机壳；111、出风口；112、第一进风口；113、第二进风口；
12、车外风机；
13、遮挡构件；131、转动构件；132、第一接合结构；133、第二接合结构；134、锁紧构件；
14、温度传感器；15、控制器；16、挡板；
2、冷媒循环回路；
21、冷凝器；22、节流构件；23、蒸发器；24、压缩机；25、四通阀。
下面参照附图来描述本发明的优选实施方式。本领域技术人员应当理解的是，这些实施方式仅用于解释本发明的技术原理，并非旨在限制本发明的保护范围。本领域技术人员可以根据需要对其作出调整，以便适应具体的应用场合。例如，本发明不对所述车载空调机组的具体应用对象作任何限制，其可以应用于油车，也可以应用于电车，还可以应用与插电混合车，技术人员可以根据实际的使用需求自行设定所述车载空调机组的应用对象，这种具体应用对象的改变并不偏离本发明的原理，仍然属于本发明的保护范围。
需要说明的是，在本发明的描述中，术语“上”、“下”、“左”、“右”、“内”、“外”、“前”、“后”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。
此外，还需要说明的是，在本发明的描述中，除非另有明确的规定和限定，术语“相连”、“连接”、“相连通”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域技术人员而言，可根据具体情况 理解上述术语在本发明中的具体含义。尽管本申请中按照特定顺序描述了本发明的压缩机频率控制方法的各个步骤，但是这些顺序并不是限制性的，在不偏离本发明的基本原理的前提下，本领域技术人员可以按照不同的顺序来执行所述步骤。
首先参阅图1和2，图1是本发明的车载空调机组的结构示意图，图2是本发明的车外机的结构示意图。如图1和2所示，本发明的车载空调机组包括车内机(图中未示出)、车外机1以及设置在所述车内机和车外机1之间的冷媒循环回路2，车外机1包括机壳11和车外风机12，机壳11中形成有换热通道，冷媒循环回路2上依次设置有冷凝器21、节流构件22、蒸发器23、压缩机24和四通阀25，蒸发器23位于所述车内机中，冷凝器21和车外风机12设置于所述换热通道中。机壳11上还设置有出风口111、第一进风口112和第二进风口113，出风口111与所述换热通道的一端相连通，第二进风口113位于车辆行驶过程中的气流路径上，并且第一进风口112和第二进风口113设置成能够择一与所述换热通道的另一端相连通。基于上述设置方式，本发明的车载空调机组能够充分利用车辆行驶过程中经过机壳11的自然流动的空气以便于对冷凝器21进行换热，降低车外风机12的使用频率，进而既能够有效减少车载电池的充放电次数，达到保护车载电池、延长使用寿命的目的，还能够有效降低所述车载空调机组的能耗，给用户提供良好的使用体验感。
需要说明的是，本发明不对所述车内机的具体结构作任何限制，也不对冷凝器21、节流构件22、蒸发器23和压缩机24的具体类型和具体结构作任何限制，冷凝器21和蒸发器23可以是盘管换热器，也可以是翅片换热器，还可以是壳管换热器；节流构件22可以是节流毛细管，也可以是电子膨胀阀，这都不是限制性的，只要所述车载空调机组能够通过所述车内机、车外机1以及设置在所述车内机和车外机1之间的冷媒循环回路2实现换热即可，技术人员可以根据实际的使用情况自行设定。
此外，还需要说明的是，本发明也不对机壳11的具体形状作任何限制，其可以是圆形，也可以是方形，还可以是不规则形状，技术人员可以根据实际的使用情况自行设定。作为一种优选的设置方式，机壳11的形状随车外机1具体位于车辆中的位置设定，以便于更有效地利用车辆 的空间。
作为一种具体的实施方式，车外机1还包括遮挡构件13，遮挡构件13设置成能够在第一进风口112和第二进风口113之间移动以使第一进风口112和第二进风口113能够择一与所述换热通道的另一端相连通。需要说明的是，本发明并不对遮挡构件13的具体结构和具体形状作任何限制，只要遮挡构件13能够使第一进风口112和第二进风口113择一与所述换热通道的另一端相连通即可，技术人员可以根据实际的使用情况自行设定。
优选地，遮挡构件13以可转动的方式与机壳11相连，且机壳11的一部分能够在遮挡构件13的带动下转动以使第二进风口113能够打开或者关闭。具体地，遮挡构件13与机壳11的连接处设置有转动构件131，以使遮挡构件13能够以转动方式移动于第一进风口112和第二进风口113之间。当然，本发明不对转动构件131的具体结构作任何限制，其可以是转动铰链结构，也可以是转动弹簧结构，这都不是限制性的，技术人员可以根据遮挡构件13实际的转动情况自行设定。
进一步优选地，遮挡构件13上还设置有第一接合结构132和第二接合结构133，第一接合结构132能够与第一进风口112接合以密封第一进风口112，第二接合结构133能够与第二进风口113接合以密封第二进风口113。需要说明的是，本发明并不对第一接合结构132和第二接合结构133的具体结构和具体形状作任何限制，第一接合结构132和第二接合结构133可以是遮挡板，也可以是遮挡块，这都不是限制性的，技术人员可以根据第一接合结构132和第二接合结构133实际的遮挡情况自行设定。
作为一种具体的实施方式，第一接合结构132和第二接合结构133均为遮挡板，以便于有效保证第一进风口112和第二进风口113的密封性，有效保证所述换热通道与第二进风口113相连通时，第一进风口112不会漏风，进而有效降低车外风机12的使用频率，保证车载电池的使用寿命，同时还能够有效降低所述车载空调机组的能耗，提升用户的使用体验感。
进一步地，第一接合结构132的一端和第二接合结构133的一端相连接且形成钝角，以便于遮挡构件13能够择一遮挡第一进风口112和第 二进风口113。当然，本发明并不对第一接合结构132和第二接合结构133之间所形成的具体角度作任何限制，技术人员可以根据实际的接合情况自行设定第一接合结构132和第二接合结构133之间的角度。
进一步优选地，第二接合结构133的远离第一接合结构132的一端与转动构件131相连，在第二接合结构133转动过程中，第一接合结构132随第二接合结构133转动，以实现第一进风口112和第二进风口113的打开或者关闭。
此外，在本优选实施例中，随遮挡构件13转动的部分机壳11的远离转动构件131的一端还设置有锁紧构件134，锁紧构件134能够锁合随遮挡构件13的转动的机壳11，以实现第二进风口113的封闭。需要说明的是，本发明不对锁紧构件134的具体结构作任何限制，锁紧构件134可以是磁吸锁合结构，也可以是卡接锁合结构，这都不是限制性的，技术人员可以根据实际的锁合情况自行设定。
进一步地，车外风机12设置成仅在第一进风口112与所述换热通道连通时开启，以便车载空调机组能够充分利用车辆行驶过程中经过机壳11的自然流动的空气对冷凝器21进行换热，降低车外风机12的使用频率，进而既能够有效减少车载电池的充放电次数，达到保护车载电池、延长使用寿命的目的，还能够有效降低所述车载空调机组的能耗，给用户提供良好的使用体验感。
此外，在本优选实施例中，第一进风口112设置在机壳11的侧部，第二进风口113设置在机壳11的顶部，且第二进风口113与车辆行进方向形成有夹角，以便有效利用车辆行驶过程中经过机壳11的自然流动的空气，进而有效保护车载电池，降低所述车载空调机组的能耗。进一步地，第一进风口112的数量为两个，两个第一进风口112分别设置在机壳11的两侧，以便有效对冷凝器21进行换热。
需要说明的是，本发明并不对出风口111、第一进风口112和第二进风口113的具体设置数量和设置位置作任何限制。此外，本发明也不对出风口111、第一进风口112和第二进风口113的具体结构和形状作任何限制，出风口111、第一进风口112和第二进风口113可以是网状结构，也可以是单一的洞状结构，这都不是限制性的，技术人员可以根据实际 的使用情况自行设定。
进一步地，冷凝器21和车外风机12沿换热气流的方向依次设置于所述换热通道中，车外风机12位于出风口111附近，以便有效保证所述换热通道对冷凝器21的换热效果，进而有效降低所述车载空调机组的能耗，保护车载电池，保证车载电池的使用寿命。当然，本发明并不对冷凝器21和车外风机12的具体设置位置作任何限制，冷凝器21和车外风机12还可以位于车外机1内的其他位置，技术人员可以根据实际的使用情况自行设定。
此外，在本优选实施例中，车外机1还包括温度传感器14和控制器15，温度传感器14能够感知冷凝器21的温度，控制器15能够控制所述车载空调机组的运行状态，例如：控制压缩机24的频率、车外风机12的转速和运行状态等。具体地，温度传感器14位于冷凝器21中，控制器15位于压缩机24的附近，当然，温度传感器14和控制器15的具体设置位置并不是限制性的。本领域技术人员能够理解的是，本发明不对控制器15的具体结构和型号作任何限制，并且控制器15可以是所述车载空调机组原有的控制器，也可以是为执行本发明的压缩机频率控制方法单独设置的控制器，技术人员可以根据实际使用需求自行设定控制器15的结构和型号。
进一步地，车外机1还包括挡板16，挡板16的一端与转动构件131相连，另一端与机壳11相连，以隔绝压缩机24和控制器15，进而能够有效避免所述换热通道中的空气影响压缩机24和控制器15的使用寿命。
在本优选实施例中，所述车载空调机组包括主动送风模式和自然送风模式，基于上述车载空调机组的具体结构，所述车载空调机组的主动送风模式和自然送风模式的工作原理如下：
首先，参阅图3，图3是本发明的车外机处于主动送风模式时的结构示意图。如图3所示，在主动送风模式的情形下，锁紧构件134处于关闭状态，第二接合结构133与部分机壳11共同遮蔽第二进风口113，且第一接合结构132与第一进风口112处于分离状态，车外机1的空气能够从第一进风口112内进入所述换热通道以对冷凝器21进行换热，此时车外风机12处于工作状态，换热后的空气由车外风机12抽出至出风口 111，进而排至车外。
接下来，参阅图4，图4是本发明的车外机处于自然送风模式时的结构示意图。如图4所示，在自然送风模式的情形下，锁紧构件134处于打开状态，以使部分机壳11能够随遮挡构件13在转动构件131的转动作用下顺时针旋转，部分机壳11和第二接合结构133转动以使第二进风口113打开，同时第一接合结构132转动至第一进风口112处且恰好遮蔽第一进风口112。此时，车外风机12处于关闭状态，车辆行驶过程中自然流动的空气由第二进风口113进入所述换热通道中，以对冷凝器21进行换热，换热后的空气经过车外风机12内的孔由出风口111排至车外。
基于上述车载空调机组能够在主动送风模式和自然送风模式之间切换的设置方式，在不需要主动送风模式时，车外风机12处于关闭状态，所述车载空调机组能够充分利用车辆行驶过程中经过机壳11的自然流动的空气以便于对冷凝器21进行换热，降低车外风机12的使用频率，进而既能够有效减少车载电池的充放电次数，达到保护车载电池、延长车载电池使用寿命的目的，还能够有效降低所述车载空调机组的能耗，给用户提供良好的使用体验感。
接下来参阅图5，图5是本发明的控制方法的主要步骤流程图。如图5所示，基于上述实施例中所述的车载空调机组，本发明的控制方法主要包括下列步骤：
S1：在车载空调机组接收到开机换热指令后，控制第一进风口与换热通道连通；
S2：经过预设时长后，获取车内温度；
S3：根据车内温度，选择性地控制第二进风口与换热通道连通。
首先，在步骤S1中，在所述车载空调机组接收到开机换热指令后，控制器15控制第一进风口112与所述换热通道连通，即，控制所述车载空调机组处于主动送风模式。需要说明的是，本发明不对发送所述开机换热指令的具体形式作任何限制，其可以是文字指令，也可以是语言指令，还可以是手势指令；可以通过与所述车载空调机组通信连接的移动终端发送，也可以通过车辆的控制终端发送，这都不是限制性的，技术人员可以根据实际的使用需求自行设定。
接着，在步骤S2和S3中，第一进风口112与所述换热通道连通达预设时长后，获取车内温度，根据获取到的车内温度，选择性地控制所第二进风口113与所述换热通道连通，即，选择性地控制所述车载空调机组切换至自然送风模式，以便有效利用车辆行驶过程中经过机壳11的自然流动的空气对冷凝器21进行换热，降低车外风机12的使用频率，进而既能够有效减少车载电池的充放电次数，达到保护车载电池、延长使用寿命的目的，还能够有效降低所述车载空调机组的能耗。
需要说明的是，本发明不对所述车内温度的具体获取方式作任何限制，其可以是车内设置的温度传感器根据不同时间段的车内温度的平均值确定，也可以是车内的实时温度，这都不是限制性的；优选地，所述车内温度为车内的实时温度，以便及时变更所述车载空调机组的运行模式，降低能耗。此外，本发明也不对所述预设时长的确定方式作任何限制，其可以由用户自行设定，也可以根据所述车载空调机组和所述车辆实际的运行情况设定，这都不是限制性的。
还需要说明的是，本发明也不对所述车载空调机组根据所述车内温度切换至自然送风模式的具体判断方式作任何限制，其可以通过车内温度与目标温度进行比较，也可以通过切换前后的车内温度进行比较；另外，可以仅通过所述车内温度进行判断，也可以引入其他参数，如车辆的位移速度，共同判断，这都不是限制性的，技术人员可以根据实际的使用情况自行设定。
接着参阅图6，图6是本发明的控制方法的优选实施例的具体步骤流程图。如图6所示，基于上述优选实施例中所述的车载空调机组，本发明的控制方法的优选实施例具体包括下列步骤：
S101：在车载空调机组接收到开机换热指令后，控制第一进风口与换热通道连通；
S102：经过预设时长后，获取车内温度；
S103：计算车内温度与目标温度的差值的绝对值；
S104：如果车内温度与目标温度的差值的绝对值小于预设值，则进一步获取车辆的位移速度；
S105：如果车内温度与目标温度的差值的绝对值大于或等于预设值，则 不控制第二进风口与换热通道连通；
S106：如果车辆的位移速度大于或等于预设位移速度，则控制第二进风口与换热通道连通；
S107：如果车辆的位移速度小于预设位移速度，则不控制第二进风口与换热通道连通；
S108：再次获取车内温度；
S109：如果再次获取到的车内温度上升，则控制第一进风口与换热通道连通；
S110：如果再次获取到的车内温度未上升，则不控制第一进风口与换热通道连通；
S111：如果再次获取到的车内温度下降，则控制第一进风口与换热通道连通；
S112：如果再次获取到的车内温度未下降，则不控制第一进风口与换热通道连通。
首先，在步骤S101中，在所述车载空调机组接收到开机换热指令后，控制器15控制第一进风口112与所述换热通道连通，即，控制所述车载空调机组处于主动送风模式。需要说明的是，本发明不对发送所述开机换热指令的具体形式作任何限制，其可以是文字指令，也可以是语言指令，还可以是手势指令；可以通过与所述车载空调机组通信连接的移动终端发送，也可以通过车辆的控制终端发送，这都不是限制性的，技术人员可以根据实际的使用需求自行设定。
接着，在步骤S102中，第一进风口112与所述换热通道连通预设时长后，获取车内的温度，根据所述车内温度，选择性地控制所第二进风口113与所述换热通道连通，即，选择性地控制所述车载空调机组切换至自然送风模式，以便有效利用车辆行驶过程中经过机壳11的自然流动的空气对冷凝器21进行换热，降低车外风机12的使用频率，进而既能够有效减少车载电池的充放电次数，从而达到保护车载电池、延长使用寿命的目的，还能够有效降低所述车载空调机组的能耗。
需要说明的是，本发明不对所述车内温度的具体获取方式作任何限制，其可以是车内设置的温度传感器根据不同时间段的车内温度的平均 值确定，也可以是车内的实时温度，这都不是限制性的；优选地，所述车内温度为车内的实时温度，以便及时变更所述车载空调机组的运行模式，降低能耗。此外，本发明也不对所述预设时长的确定方式作任何限制，其可以由用户自行设定，也可以根据所述车载空调机组和所述车辆实际的运行情况设定，这都不是限制性的。
还需要说明的是，本发明也不对所述车载空调机组根据所述车内温度切换至自然送风模式的具体判断方式作任何限制，其可以通过车内温度与目标温度进行比较，也可以通过切换前后的车内温度进行比较；另外，可以仅通过所述车内温度进行判断，也可以引入其他参数，如车辆的位移速度，共同判断，这都不是限制性的，技术人员可以根据实际的使用情况自行设定。
作为一种优选的设定方式，以便更加直观快速地判断第二进风口113是否与所述换热通道连通，本实施例通过所述车内温度与目标温度的差值进行判断。
具体地，首先，在步骤S103中，计算所述车内温度与目标温度的差值的绝对值，根据所述车内温度与所述目标温度的差值的绝对值，选择性地控制所述第二进风口与所述换热通道连通。进一步地，在步骤S104和S105中，如果所述车内温度与所述目标温度的差值的绝对值大于或等于所述预设值，则不控制第二进风口113与所述换热通道连通，即，继续使所述车载空调机组处于主动送风模式；反之，如果所述车内温度与所述目标温度的差值的绝对值小于预设值，则进一步获取车辆的位移速度，并根据所述车辆的位移速度，选择性地控制第二进风口113与所述换热通道连通。
需要说明的是，本发明不对所述目标温度和所述预设值的具体确定方式作任何限制，其可以由用户自行设定，也可以根据所述车载空调机组和所述车辆实际的运行情况设定；优选地，所述目标温度为20℃，所述预设值为3℃，以便在保证所述车载空调机组稳定运行的同时，还能够及时由主动送风模式切换至自然送风模式，降低能耗，保证车载电池的使用寿命。
进一步优选地，在步骤S106和S107中，如果所述车辆的位移速度 小于预设位移速度，则不控制第二进风口113与所述换热通道连通；反之，如果所述车辆的位移速度大于或等于所述预设位移速度，则控制第二进风口113与所述换热通道连通，即，控制所述车载空调机组由主动送风模式切换至自然送风模式，以便有效利用所述车辆行驶过程中经过机壳11的自然流动的空气对冷凝器21换热。
需要说明的是，本发明也不对所述车辆的位移速度的具体获取方式作任何限制，其可以根据所述车辆上自行设定的车辆行驶速率探测器获取，也可以根据所述车辆实际的运行时间与运行距离计算获取，这都不是限制性的；优选地，所述预设位移速度为20km/h，以便有效满足用户的使用需求，同时有效降低所述车载空调机组的能耗，保证车载电池的使用寿命。此外，还需要说明的是，本发明也不对所述预设位移速度的确定方式作任何限制，其可以由用户自行设定，也可以根据所述车载空调机组和所述车辆实际的运行情况设定，技术人员可以根据实际的情况自行设定。
进一步地，在步骤S108中，在第二进风口113与所述换热通道连通的情形下，即，所述车载空调机组处于自然送风模式的情形下，再次获取车内温度，根据再次获取到的所述车内温度，选择性地控制第一进风口112与所述换热通道连通，以有效保证用户的实际需求。需要说明的是，本发明不对再次获取车内温度的时机作任何限制，其可以经过预设目标时长后获取，也可以及时获取，这都不是限制性的；优选地，经过预设时长后，再次获取车内温度，以有效避免所述车载空调机组频繁在主动送风模式和自然送风模式之间切换，损坏所述车载空调机组设置所述车辆。
具体地，在步骤S109和S110中，当所述车载空调机组处于制冷工况时，如果再次获取到的所述车内温度上升，则控制第一进风口112与所述换热通道连通；当然，可以在再次获取到的所述车内温度上升至预设升温值后，控制第一进风口112与所述换热通道连通，也可以只要再次获取到的所述车内温度上升，便控制第一进风口112与所述换热通道连通；作为一种优选的设置方式，可以在再次获取到的所述车内温度上升至所述预设升温值后，控制第一进风口112与所述换热通道连通，以 有效避免所述车载空调机组频繁在主动送风模式和自然送风模式之间切换，损坏所述车载空调机组设置所述车辆。反之，如果再次获取到的所述车内温度未上升，则不控制第一进风口112与所述换热通道连通。
接着，在步骤S111和S112中，当所述车载空调机组处于制热工况时，如果再次获取到的所述车内温度下降，则控制第一进风口112与所述换热通道连通；当然，可以在再次获取到的所述车内温度下降至预设降温值后，控制第一进风口112与所述换热通道连通，也可以只要再次获取到的所述车内温度下降，便控制第一进风口112与所述换热通道连通；作为一种优选的设置方式，可以在再次获取到的所述车内温度下降至所述预设降温值后，控制第一进风口112与所述换热通道连通，以有效避免所述车载空调机组频繁在主动送风模式和自然送风模式之间切换，损坏所述车载空调机组设置所述车辆。反之，如果再次获取到的所述车内温度未下降，则不控制第一进风口112与所述换热通道连通。
需要说明的是，本发明不对所述预设升温值和所述预设降温值的具体确定方式作任何限制，其可以由用户自行设定，也可以根据所述车载空调机组和车辆实际的运行情况设定，这都不是限制性的。
此外，还需要说明的是，在所述车载空调机组处于主动送风模式的情形下，可以仅通过所述车内温度确定所述车载空调机组切换至自然送风模式的时机，也可以通过所述车内温度和所述车辆的位移速度共同确定所述车载空调机组切换至自然送风模式的时机；优选地，可以通过所述车内温度和所述车辆的位移速度共同确定所述车载空调机组切换至自然送风模式的时机，以便在有效保证所述车载空调机组稳定运行的基础上，还能够进一步更加有效地降低能耗，进而有效保证车载电池的使用寿命。
至此，已经结合附图所示的优选实施方式描述了本发明的技术方案，但是，本领域技术人员容易理解的是，本发明的保护范围显然不局限于这些具体实施方式。在不偏离本发明的原理的前提下，本领域技术人员可以对相关技术特征作出等同的更改或替换，这些更改或替换之后的技术方案都将落入本发明的保护范围之内。
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- 一种车载空调机组的控制方法，其特征在于，所述车载空调机组包括车内机、车外机以及设置在所述车内机和所述车外机之间的冷媒循环回路，所述车外机包括机壳和车外风机，所述机壳中形成有换热通道，所述冷媒循环回路上依次设置有冷凝器、节流构件、蒸发器和压缩机，所述蒸发器位于所述车内机中，所述冷凝器和所述车外风机设置于所述换热通道中，所述机壳上还设置有出风口、第一进风口和第二进风口，所述出风口与所述换热通道的一端相连通，所述第二进风口位于车辆行驶过程中的气流路径上，并且所述第一进风口和所述第二进风口设置成能够择一与所述换热通道的另一端相连通，所述控制方法包括：在所述车载空调机组接收到开机换热指令后，控制所述第一进风口与所述换热通道连通；经过预设时长后，获取车内温度；根据所述车内温度，选择性地控制所述第二进风口与所述换热通道连通。
- 根据权利要求1所述的控制方法，其特征在于，“根据所述车内温度，选择性地控制所述第二进风口与所述换热通道连通”的步骤具体包括：计算所述车内温度与目标温度的差值的绝对值；根据所述车内温度与所述目标温度的差值的绝对值，选择性地控制所述第二进风口与所述换热通道连通。
- 根据权利要求2所述的控制方法，其特征在于，“根据所述车内温度与所述目标温度的差值的绝对值，选择性地控制所述第二进风口与所述换热通道连通”的步骤包括：如果所述车内温度与所述目标温度的差值的绝对值小于预设值，则进一步获取车辆的位移速度；根据所述车辆的位移速度，选择性地控制所述第二进风口与所述换热通道连通。
- 根据权利要求3所述的控制方法，其特征在于，“根据所述车内温度与所述目标温度的差值的绝对值，选择性地控制所述第二进风口与所述换热通道连通”的步骤还包括：如果所述车内温度与所述目标温度的差值的绝对值大于或等于所述预设值，则不控制所述第二进风口与所述换热通道连通。
- 根据权利要求3所述的控制方法，其特征在于，“根据所述车辆的位移速度，选择性地控制所述第二进风口与所述换热通道连通”的步骤包括：如果所述车辆的位移速度大于或等于预设位移速度，则控制所述第二进风口与所述换热通道连通。
- 根据权利要求5所述的控制方法，其特征在于，“根据所述车辆的位移速度，选择性地控制所述第二进风口与所述换热通道连通”的步骤还包括：如果所述车辆的位移速度小于所述预设位移速度，则不控制所述第二进风口与所述换热通道连通。
- 根据权利要求5所述的控制方法，其特征在于，在所述第二进风口与所述换热通道连通的情形下，所述控制方法还包括：再次获取车内温度；根据再次获取到的所述车内温度，选择性地控制所述第一进风口与所述换热通道连通。
- 根据权利要求7所述的控制方法，其特征在于，“根据再次获取 到的所述车内温度，选择性地控制所述第一进风口与所述换热通道连通”的步骤包括：在所述车载空调机组运行制冷工况时，如果再次获取到的所述车内温度上升，则控制所述第一进风口与所述换热通道连通；在所述车载空调机组运行制热工况时，如果再次获取到的所述车内温度下降，则控制所述第一进风口与所述换热通道连通。
- 根据权利要求8所述的控制方法，其特征在于，“根据再次获取到的所述车内温度，选择性地控制所述第一进风口与所述换热通道连通”的步骤还包括：在所述车载空调机组运行制冷工况时，如果再次获取到的所述车内温度未上升，则不控制所述第一进风口与所述换热通道连通；在所述车载空调机组运行制热工况时，如果再次获取到的所述车内温度未下降，则不控制所述第一进风口与所述换热通道连通。
- 一种车载空调机组，其特征在于，所述车载空调机组包括控制器，所述控制器能够执行权利要求1至9中任一项所述的控制方法。
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| DE19956816A1 (de) * | 1999-11-25 | 2001-06-07 | Bosch Gmbh Robert | Kältemittelkreislauf |
| JP2010048498A (ja) * | 2008-08-22 | 2010-03-04 | Tgk Co Ltd | 冷凍サイクル |
| US20160089956A1 (en) * | 2014-09-26 | 2016-03-31 | Thermo King Corporation | Method and system for controlling condenser/radiator airflow |
| CN110497769A (zh) * | 2019-09-23 | 2019-11-26 | 中国科学院理化技术研究所 | 汽车热泵系统及其控制方法 |
| CN111688443A (zh) * | 2020-06-15 | 2020-09-22 | 珠海格力电器股份有限公司 | 一种汽车空调系统及控制方法 |
| CN111942100A (zh) * | 2020-07-06 | 2020-11-17 | 珠海格力电器股份有限公司 | 一种汽车空调系统及其控制方法 |
| CN114312209A (zh) * | 2021-12-07 | 2022-04-12 | 青岛海尔空调器有限总公司 | 车载空调机组及其控制方法 |
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| DE19956816A1 (de) * | 1999-11-25 | 2001-06-07 | Bosch Gmbh Robert | Kältemittelkreislauf |
| JP2010048498A (ja) * | 2008-08-22 | 2010-03-04 | Tgk Co Ltd | 冷凍サイクル |
| US20160089956A1 (en) * | 2014-09-26 | 2016-03-31 | Thermo King Corporation | Method and system for controlling condenser/radiator airflow |
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| CN111688443A (zh) * | 2020-06-15 | 2020-09-22 | 珠海格力电器股份有限公司 | 一种汽车空调系统及控制方法 |
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