CN113103839B - Vehicle-mounted overhead air conditioner, control method thereof and vehicle - Google Patents
Vehicle-mounted overhead air conditioner, control method thereof and vehicle Download PDFInfo
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- CN113103839B CN113103839B CN202110340281.5A CN202110340281A CN113103839B CN 113103839 B CN113103839 B CN 113103839B CN 202110340281 A CN202110340281 A CN 202110340281A CN 113103839 B CN113103839 B CN 113103839B
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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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
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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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
- B60H1/00871—Air directing means, e.g. blades in an air outlet
Abstract
The invention belongs to the technical field of air conditioners and aims to solve the problem that a side vent of an existing vehicle-mounted overhead air conditioner is easily interfered by environmental wind to cause unstable air volume of an outer air duct. To this end, the invention provides a vehicle-mounted overhead air conditioner and a control method thereof, and a vehicle, wherein the vehicle-mounted overhead air conditioner is mounted on the vehicle and comprises a shell and an outer air duct corresponding to an outdoor heat exchanger, the outer air duct comprises a plurality of ventilation openings arranged around the side part of the shell, each ventilation opening is provided with an air door mechanism, a wind pressure sensor is arranged near each ventilation opening, the vehicle-mounted overhead air conditioner comprises a controller connected with the air door mechanism and the wind pressure sensor, and the control method comprises the following steps: and acquiring a wind pressure value at each vent, and selectively controlling the air door mechanism to open the corresponding vent according to the wind pressure value, so that the airflow of the vent is matched with the heat exchange quantity of the outdoor heat exchanger, and the service lives of the compressor and the refrigerant circulating pipeline are prolonged.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly provides a vehicle-mounted overhead type air conditioner, a control method of the air conditioner and a vehicle.
Background
With the progress of science and technology and the continuous improvement of the living standard of people, the air conditioner is widely applied to the daily life of people. The air conditioner is not only generally applied to the home environment of people, but also widely applied to vehicles driven by people, and the temperature comfort degree in the driving space of the vehicles is improved. In consideration of the limited interior space of a vehicle, an in-vehicle ceiling type air conditioner is a main type of air conditioner for vehicles. The vehicle-mounted overhead air conditioner is installed on a vehicle roof, the upper half part of the vehicle-mounted overhead air conditioner is positioned at the upper part of the vehicle roof, the lower half part of the vehicle-mounted overhead air conditioner is positioned in a vehicle, an air inlet and/or an air outlet of the internal air duct are/is arranged at the bottom of the overhead air conditioner, so that air in the vehicle can flow through the indoor heat exchanger for heat exchange and then returns to the interior of the vehicle, and an air outlet and an air inlet of the external air duct are respectively arranged at the top and the side part of the vehicle-mounted overhead air conditioner, so that air in the external environment can flow through the outdoor heat exchanger for heat exchange and then returns to the external environment again.
Generally, the rotating speed of the outdoor fan is matched with the heat exchange amount of the outdoor heat exchanger. The inventor of the invention finds that in the actual use process of the vehicle-mounted air conditioner, the air intake of the side air inlet is easily interfered by wind in the environment, so that the air intake is unstable, the air flow is not matched with the heat exchange quantity of the outdoor heat exchanger, the compressor is started and stopped irregularly, the pressure of a pipeline in a refrigerant loop is unstable, and the service life of the compressor and the refrigerant circulation pipeline is influenced.
Therefore, there is a need in the art for a new solution to the above problems.
Disclosure of Invention
In order to solve the above-mentioned problems in the prior art, i.e. to solve the problem that the side vents of the conventional vehicle-mounted ceiling-mounted air conditioner are easily interfered by environmental wind to cause unstable air volume of the outer air duct, in one aspect, the present invention provides a method for controlling a vehicle-mounted ceiling-mounted air conditioner, the vehicle-mounted ceiling-mounted air conditioner is mounted on a vehicle, the vehicle-mounted ceiling-mounted air conditioner comprises a housing and an outer air duct corresponding to an outdoor heat exchanger, the outer air duct comprises a plurality of vents arranged around the side of the housing, each vent is provided with a wind door mechanism, a wind pressure sensor is arranged near each vent, the vehicle-mounted ceiling-mounted air conditioner comprises a controller, and the controller is connected with the wind door mechanisms and the wind pressure sensors, the method comprises: acquiring a wind pressure value at each vent; and selectively controlling the air door mechanism to open the corresponding air vent according to the air pressure value.
In a preferred embodiment of the above control method, the step of selectively controlling the damper mechanism to open the corresponding vent according to the wind pressure value includes: comparing the absolute values of the plurality of wind pressure values and screening out a preset number of wind pressure values with smaller absolute values; and controlling the air door mechanism of the air vent corresponding to the screened wind pressure value to open the corresponding air vent.
In a preferred embodiment of the above control method, the step of selectively controlling the damper mechanism to open the corresponding vent according to the wind pressure value includes: comparing the absolute values of the plurality of wind pressure values with a preset threshold value and screening out the wind pressure value of which the absolute value is smaller than the preset threshold value; and controlling the air door mechanism of the air vent corresponding to the screened wind pressure value to open the corresponding air vent.
In a preferred embodiment of the above control method, the step of "controlling the damper mechanism of the vent corresponding to the screened wind pressure value to open the corresponding vent" includes: and controlling the air door mechanism of the air vent corresponding to the screened wind pressure value to completely open the corresponding air vent.
In a preferred embodiment of the above control method, the step of "controlling the damper mechanism of the vent corresponding to the screened wind pressure value to open the corresponding vent" includes: determining the target opening of the corresponding vent according to the screened wind pressure value; and controlling the opening of the corresponding vent to reach the corresponding target opening.
In a preferred technical solution of the above control method, the vent includes an air inlet, and the step of determining the target opening of the corresponding vent according to the screened air pressure value includes: if the air pressure value of the screened air inlet is positive pressure, determining the corresponding target opening of the air inlet according to the air pressure value of the screened air inlet; controlling the opening degree of the corresponding air inlet to reach the corresponding target opening degree; wherein the target opening degree is inversely related to the wind pressure value.
In a preferred technical solution of the above control method, the vent includes an air outlet, and the step of determining the target opening of the corresponding vent according to the screened air pressure value includes: if the air pressure value of the screened air outlet is negative pressure, determining the target opening of the corresponding air outlet according to the air pressure value of the screened air outlet; controlling the opening of the corresponding air outlet to reach the corresponding target opening; wherein the target opening degree is inversely related to an absolute value of the wind pressure value.
In a preferred technical solution of the above control method, "acquiring a wind pressure value at each of the vents" specifically includes: and acquiring the wind pressure value at each vent in real time.
The technical scheme of the invention includes that a plurality of ventilation openings are arranged on the side portion of the vehicle-mounted overhead air conditioner, each ventilation opening is provided with an air door mechanism, a wind pressure sensor is arranged near each ventilation opening, a controller is connected with the air door mechanisms and the wind pressure sensors, the air door mechanisms are selectively controlled to open the corresponding ventilation openings according to the wind pressure value by acquiring the wind pressure value at each ventilation opening, the corresponding ventilation openings are selectively opened according to the wind pressure value at each ventilation opening under the condition of different wind directions, the influence of wind on the airflow of the ventilation openings is reduced, the airflow is matched with the heat exchange quantity of the outdoor heat exchanger, the compressor is ensured to be started and stopped regularly, the pipeline pressure in a refrigerant loop is kept relatively stable, and the service life of the compressor and the refrigerant circulation pipeline is prolonged.
In another aspect, the present invention further provides a vehicle-mounted ceiling type air conditioner, including: a memory; a processor; and a computer program stored in the memory and configured to be executed by the processor to implement the control method of the in-vehicle overhead type air conditioner in the above-described technical solution.
In addition, the invention also provides a vehicle which comprises the vehicle-mounted overhead air conditioner in the technical scheme.
It should be noted that, the vehicle-mounted ceiling-mounted air conditioner and the vehicle have all the technical effects of the control method, and are not described herein again.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a diagram of main steps of a control method of a vehicle-mounted ceiling type air conditioner of the present invention;
FIG. 2 is a diagram showing a detailed procedure of a control method of the on-vehicle rooftop air conditioner according to the present invention;
fig. 3 is a schematic structural view of a vehicle-mounted ceiling type air conditioner according to an embodiment of the present invention;
FIG. 4 is a schematic top view of a vehicle mounted on-board air conditioner in accordance with one embodiment of the present invention;
fig. 5 is a detailed step diagram of a control method of a vehicle-mounted overhead type air conditioner according to an embodiment of the present invention.
List of reference numerals:
1. a housing; 11. a top plate; 121. a front side plate; 122. a left side plate; 123. a right side plate; 124. a rear side plate; 131. a front air inlet; 132. a left air inlet; 133. a right air inlet; 134. a rear air inlet; 14. and (7) an air outlet.
Detailed Description
First, it should be understood by those skilled in the art that the embodiments described below are merely for explaining technical principles of the present invention, and are not intended to limit the scope of the present invention. For example, although the number of the air inlets in the embodiment of the present invention is four, this does not limit the scope of the present invention, and those skilled in the art can adjust it as needed to suit the specific application, for example, the number of the air inlets in the embodiment of the present invention may be two, three, five or more, etc. Obviously, the modified technical solution still falls into the protection scope of the present invention.
It should be noted that the terms "first", "second", "third" and "fourth" in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
A vehicle-mounted ceiling type air conditioner and a control method thereof of the present invention will be described with reference to fig. 1 to 5. Fig. 1 is a main step diagram of a control method of a vehicle-mounted ceiling type air conditioner according to the present invention, fig. 2 is a detailed step diagram of the control method of the vehicle-mounted ceiling type air conditioner according to the present invention, fig. 3 is a schematic structural diagram of the vehicle-mounted ceiling type air conditioner according to an embodiment of the present invention, fig. 4 is a schematic plan view of the vehicle-mounted ceiling type air conditioner according to the embodiment of the present invention, and fig. 5 is a detailed step diagram of the control method of the vehicle-mounted ceiling type air conditioner according to the embodiment of the present invention.
Based on the problem that the side vent of the conventional vehicle-mounted overhead air conditioner is easily interfered by environmental wind to cause unstable air volume of an outer air duct in the prior art, the invention provides the vehicle-mounted overhead air conditioner and a control method thereof. The vehicle-mounted overhead air conditioner is installed on a vehicle and comprises a shell and an outer air duct corresponding to the outdoor heat exchanger, the outer air duct comprises a plurality of ventilation openings arranged on the side portion of the shell in an enclosing mode, each ventilation opening is provided with an air door mechanism, a wind pressure sensor is arranged near each ventilation opening, the vehicle-mounted overhead air conditioner comprises a controller, and the controller is connected with the air door mechanisms and the wind pressure sensors. Those skilled in the art can understand that the controller is connected with the air door mechanism and the air pressure sensor, and can be connected in a wired mode through a communication line or in a wireless mode such as Bluetooth and WIFI. The damper mechanism may be a damper provided at the vent opening and capable of opening and closing the vent opening by being driven by a motor, and the opening degree of the vent opening may be adjustable.
As shown in fig. 1, the control method of the vehicle-mounted overhead type air conditioner of the present invention mainly includes the steps of:
and S100, acquiring a wind pressure value at each vent.
Before the vehicle-mounted overhead type air conditioner works, the wind pressure sensor at each vent detects the wind pressure value at the corresponding vent and sends the detected wind pressure value to the controller.
And S200, selectively controlling the air door mechanism to open the corresponding air vent according to the wind pressure value.
For example, the controller compares the absolute values of the received wind pressure values with a preset threshold value, screens out a wind pressure value having an absolute value smaller than the preset threshold value, and controls the damper mechanism of the vent corresponding to the screened wind pressure value to open the corresponding vent.
The air pressure value of each vent is obtained, the air door mechanism is selectively controlled to open the corresponding vent according to the air pressure value, the corresponding vent is selectively opened according to the air pressure value of each vent under the condition of different wind directions, the influence of wind on the airflow of the vent is reduced, the airflow is matched with the heat exchange quantity of the outdoor heat exchanger, the compressor is guaranteed to be started and stopped regularly, the pipeline pressure in the refrigerant loop is kept relatively stable, and the service life of the compressor and the refrigerant circulating pipeline is prolonged.
The air pressure value smaller than the preset threshold value is screened out by comparing the absolute value of the air pressure value of each vent with the preset threshold value, the corresponding vent is opened by controlling the air door mechanism of the vent corresponding to the screened air pressure value, the condition that the vent with the larger absolute value of the air pressure value is opened to generate larger influence on the air flow of the outer air duct can be avoided, and therefore the influence of the air on the air flow of the vent is reduced.
As shown in fig. 2, step S100 specifically includes:
and step S110, acquiring a wind pressure value at each vent in real time.
Step S200 specifically includes:
s210, comparing absolute values of a plurality of wind pressure values and screening out a preset number of wind pressure values with smaller absolute values;
and S220, controlling the air door mechanism of the air vent corresponding to the screened wind pressure value to open the corresponding air vent.
Before the vehicle-mounted overhead air conditioner works, the wind pressure sensors at the air vents detect wind pressure values corresponding to the air vents and send the detected wind pressure values to the controller, the controller compares the sizes of the plurality of wind pressure values and screens the wind pressure values with smaller preset numbers of absolute values, the corresponding air vents are opened by the air door mechanisms of the air vents corresponding to the screened wind pressure values, then the wind pressure sensors at the air vents detect the wind pressure values corresponding to the air vents in real time and send the detected wind pressure values to the controller, and the controller adjusts the opening states of the plurality of air vents in real time according to the detected wind pressure values at the air vents. Through the arrangement, the situation that the airflow direction of the ventilation opening is greatly influenced again due to the change of the wind direction in the using process of the vehicle-mounted overhead type air conditioner is avoided. The air pressure values with smaller preset numbers are screened out by comparing the absolute values of the plurality of air pressure values, and the corresponding air vents are opened by controlling the air door mechanisms of the air vents corresponding to the screened air pressure values, so that the number of the air vents can be kept to be set, and the airflow flow can be ensured as much as possible.
It will be understood by those skilled in the art that the number of the vents and the preset number may be set by those skilled in the art according to actual conditions, for example, in a specific embodiment, one vent is respectively arranged at each of four positions on the side of the vehicle-mounted overhead air conditioner, and the preset number may be one, two, three, or the like. In addition, in another possible embodiment, a control method of a vehicle-mounted rooftop air conditioner of the present invention includes: acquiring a wind pressure value at each vent in real time; and comparing the absolute values of the plurality of wind pressure values with a preset threshold value, screening out the wind pressure values of which the absolute values are smaller than the preset threshold value, and controlling the air door mechanisms of the air vents corresponding to the screened wind pressure values to open the corresponding air vents.
Preferably, the step of controlling the damper mechanism of the vent corresponding to the screened wind pressure value to open the corresponding vent includes: determining the target opening of the corresponding vent according to the screened wind pressure value; and controlling the opening degree of the corresponding vent to reach the corresponding target opening degree.
Through the arrangement, on the basis that the air vent with a smaller absolute value of the air pressure value is selectively opened to reduce the influence of the air on the air flow, the opening degree of the air vent is further controlled, so that the opening degree of the air vent is matched with the air pressure value, the influence of the air on the air flow can be further reduced, and the matching degree of the air flow and the heat exchange quantity of the outdoor heat exchanger is improved.
In a specific embodiment, the vent includes four air outlets disposed at the side portions of the in-vehicle ceiling type air conditioner, one fan is disposed near each air outlet, an air inlet of the in-vehicle ceiling type air conditioner is disposed at the top portion, and the step of determining the target opening degree of the corresponding vent according to the screened air pressure value includes: if the wind pressure value of the screened air outlet is negative pressure, determining the corresponding target opening of the air outlet according to the wind pressure value of the screened air outlet; controlling the opening of the corresponding air outlet to reach the corresponding target opening; wherein, the target opening degree is inversely related to the absolute value of the wind pressure value. And if the wind pressure value of the screened air outlet is positive pressure, setting the screened target opening degree to 1, controlling the opening degree of the corresponding air outlet to reach 1, namely completely opening the corresponding air outlet, and simultaneously controlling the rotating speed of a fan of the corresponding air outlet to increase. It can be understood that the rotation speed of the fan at the corresponding air outlet can be controlled to increase the set value, or the rotation speed of the fan at the corresponding air outlet can be controlled to increase the rotation speed to be positively correlated with the air pressure value.
During the running process of the vehicle, the vehicle-mounted overhead type air conditioner moves at a high speed along with the vehicle, air on the left side and the right side (the side corresponding to the left side and the right side of the vehicle) of the vehicle-mounted overhead type air conditioner moves at a high speed relative to the side of the vehicle-mounted overhead type air conditioner, and under the condition that the speed of the air in the external environment is low, negative pressure is formed on the left side and the right side of the vehicle-mounted overhead type air conditioner, and the negative pressure promotes the air outlet of the air outlets on the left side and the right side of the vehicle-mounted overhead type air conditioner. Under the condition that the air pressure values of the air outlets on the left side and the right side are small and the air pressures on the left side and the right side are negative pressures, the target opening degree of the corresponding air outlet is determined according to the air pressure values of the screened air outlets, the opening degree of the corresponding air outlet is controlled to reach the corresponding target opening degree, the target opening degree is in negative correlation with the absolute value of the air pressure value, and therefore the influence on the airflow flow of the air outlets opened on the left side and the right side can be reduced.
In another specific embodiment, the vent includes four air inlets disposed at the side of the vehicle-mounted ceiling type air conditioner, one fan is disposed near each air inlet, the air outlet of the vehicle-mounted ceiling type air conditioner is disposed at the top, and the step of determining the target opening degree of the corresponding vent according to the screened air pressure value includes: if the air pressure value of the screened air inlet is positive pressure, determining the corresponding target opening of the air inlet according to the air pressure value of the screened air inlet; controlling the corresponding opening of the air inlet to reach the corresponding target opening; wherein, the target opening degree is inversely related to the wind pressure value. If the air pressure value of the screened air inlet is negative pressure, the screened target opening is set to be 1, the opening of the corresponding air inlet is controlled to reach 1, namely, the corresponding air inlet is completely opened, and meanwhile, the rotating speed of a fan of the corresponding air inlet is controlled to be increased. It can be understood that the rotation speed of the fan at the corresponding air inlet may be controlled to increase by a set value, or the rotation speed of the fan at the corresponding air inlet may be controlled such that the rotation speed increase is positively correlated to the absolute value of the air pressure value.
An embodiment of the present invention will be described with reference to fig. 3 to 5.
As shown in fig. 3 to 5, the vehicle-mounted ceiling-mounted air conditioner includes a housing 1, a front side plate 121, a left side plate 122, a right side plate 123, and a rear side plate 124 of the housing 1 are respectively provided with a front air inlet 131, a left air inlet 132, a right air inlet 133, and a rear air inlet 134, and a top plate 11 of the housing 1 is provided with two air outlets 14. The front air inlet 131, the left air inlet 132, the right air inlet 133 and the rear air inlet 134 are respectively provided with a first damper mechanism (not shown), a second damper mechanism (not shown), a third damper mechanism (not shown) and a fourth damper mechanism (not shown). First air door mechanism, second air door mechanism, third air door mechanism and fourth air door mechanism all include motor and the air door of connecting each other, can drive the aperture of the air intake that corresponds through the air door that the motor corresponds and adjust. Wind pressure sensors (not shown) are respectively arranged near the front air inlet 131, the left air inlet 132, the right air inlet 133 and the rear air inlet 134, and a controller of the vehicle-mounted overhead air conditioner is connected with the first air door mechanism, the second air door mechanism, the third air door mechanism, the fourth air door mechanism and the wind pressure sensors.
The control method of the vehicle-mounted overhead type air conditioner comprises the following steps:
and S100, acquiring the wind pressure value of each air inlet in real time.
And S211, comparing the absolute values of the wind pressure values and transmitting a preset number of wind pressure values with smaller absolute values.
Step S221, determining whether the screened wind pressure value is a positive pressure, if so, executing step S222, otherwise, executing step S224.
And step S222, determining a corresponding target opening of the air inlet according to the air pressure value of the air inlet, wherein the target opening is in negative correlation with the air pressure value.
And step S223, controlling the corresponding opening degree of the air inlet to reach the corresponding target opening degree.
And step S224, determining the opening of the air inlet to be 1.
And step S225, controlling the corresponding air inlet to be fully opened, and controlling the rotating speed of the fan corresponding to the air inlet to be increased.
For example, during the preparation work and the whole working process of the vehicle-mounted ceiling-mounted air conditioner, the wind pressure values near the front air inlet 131, the left air inlet 132, the right air inlet 133 and the rear air inlet 134 are obtained in real time, the absolute values of the four proud wind pressure values are compared, two wind pressure values with smaller absolute values are screened out, and whether the two wind pressure values are positive pressure or not is respectively judged. If the wind pressure value is positive pressure, determining the target opening of the corresponding air inlet according to the wind pressure value, wherein the target opening is in negative correlation with the wind pressure value, and controlling the opening of the air inlet corresponding to the wind pressure value to reach the target opening. If the air pressure value is negative pressure, determining that the target opening of the air inlet corresponding to the air pressure value is 1, controlling the corresponding air inlet to be fully opened, and controlling the rotating speed of the fan corresponding to the air inlet to be increased.
Through the arrangement, on the basis of selectively opening the air inlet with the smaller absolute value of the air pressure value to reduce the influence of the air on the airflow, the opening degree of the air inlet is further controlled, so that the opening degree of the air inlet is matched with the air pressure value, the influence of the air on the airflow can be further reduced, and the matching degree of the airflow and the heat exchange quantity of the outdoor heat exchanger is improved.
In another aspect, the present invention further provides a vehicle-mounted ceiling type air conditioner, including: the air conditioner control system comprises a memory, a processor and a computer program, wherein the computer program is stored in the memory and is configured to be executed by the processor to realize the control method of the vehicle-mounted overhead type air conditioner of any one of the embodiments.
Those skilled in the art will appreciate that the memory in the above embodiments includes, but is not limited to, ram, flash, rom, prom, volatile, non-volatile, serial, parallel, or registers, etc., and the processor includes, but is not limited to, CPLD/FPGA, DSP, ARM processor, MIPS processor, etc.
In addition, the invention also provides a vehicle which comprises the vehicle-mounted overhead type air conditioner of the embodiment.
It can be seen from the above description that, in the technical scheme of the present invention, the air pressure value at each vent is obtained, the air door mechanism is selectively controlled to open the corresponding vent according to the air pressure value, the corresponding vent is selectively opened according to the air pressure value at each vent under the condition of different wind directions, the influence of the wind on the airflow flow of the vent is reduced, the airflow flow is matched with the heat exchange quantity of the outdoor heat exchanger, the compressor is ensured to be regularly started and stopped, the pipeline pressure in the refrigerant loop is kept relatively stable, and therefore, the service lives of the compressor and the refrigerant circulation pipeline are prolonged.
Those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments instead of others, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims of the present invention, any of the claimed embodiments may be used in any combination.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is apparent to those skilled in the art that the scope of the present invention is not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (6)
1. The utility model provides a control method of on-vehicle overhead type air conditioner, on-vehicle overhead type air conditioner installs in the vehicle, its characterized in that, on-vehicle overhead type air conditioner includes the casing and the outer wind channel that corresponds with outdoor heat exchanger, outer wind channel is including enclosing to establish a plurality of vents of casing lateral part, every the vent is provided with wind door mechanism, every near the vent all is provided with wind pressure sensor, on-vehicle overhead type air conditioner includes the controller, the controller with wind door mechanism with wind pressure sensor connects, control method includes:
acquiring a wind pressure value at each vent;
selectively controlling the air door mechanism to open a corresponding vent according to the wind pressure value;
the step of selectively controlling the damper mechanism to open the corresponding vent according to the wind pressure value includes:
comparing the absolute values of the plurality of wind pressure values, screening out the wind pressure values with smaller absolute values and preset numbers, and controlling the air door mechanism of the air vent corresponding to the screened wind pressure value to open the corresponding air vent, or
Comparing the absolute values of the plurality of wind pressure values with a preset threshold value, screening out the wind pressure values of which the absolute values are smaller than the preset threshold value, and controlling the air door mechanisms of the air vents corresponding to the screened wind pressure values to open the corresponding air vents;
wherein, the step of "controlling the air door mechanism of the air vent corresponding to the screened wind pressure value to open the corresponding air vent" comprises:
the damper mechanism for controlling the vent corresponding to the selected wind pressure value fully opens the corresponding vent, or
And determining the target opening of the corresponding vent according to the screened wind pressure value, and controlling the opening of the corresponding vent to reach the corresponding target opening.
2. The control method according to claim 1, wherein the vent includes an air inlet, and the step of determining the target opening of the corresponding vent according to the screened air pressure value includes:
if the air pressure value of the screened air inlet is positive pressure, determining the corresponding target opening of the air inlet according to the air pressure value of the screened air inlet;
controlling the opening degree of the corresponding air inlet to reach the corresponding target opening degree;
wherein the target opening degree is inversely related to the wind pressure value.
3. The control method of claim 1, wherein the vent includes an air outlet,
the step of determining the target opening degree of the corresponding vent according to the screened wind pressure value comprises the following steps:
if the air pressure value of the screened air outlet is negative pressure, determining the target opening of the corresponding air outlet according to the air pressure value of the screened air outlet;
controlling the opening degree of the corresponding air outlet to reach the corresponding target opening degree;
wherein the target opening degree is inversely related to an absolute value of the wind pressure value.
4. The control method according to claim 1, wherein the step of "acquiring a wind pressure value at each of the air vents" specifically comprises:
and acquiring the wind pressure value at each vent in real time.
5. An in-vehicle overhead type air conditioner, characterized by comprising:
a memory;
a processor; and
a computer program stored in the memory and configured to be executed by the processor to implement the control method of the in-vehicle overhead type air conditioner of any one of claims 1 to 4.
6. A vehicle characterized by comprising the on-vehicle overhead type air conditioner of claim 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110340281.5A CN113103839B (en) | 2021-03-30 | 2021-03-30 | Vehicle-mounted overhead air conditioner, control method thereof and vehicle |
| PCT/CN2022/073268 WO2022206140A1 (en) | 2021-03-30 | 2022-01-21 | Vehicle-mounted overhead air conditioner and control method therefor, and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110340281.5A CN113103839B (en) | 2021-03-30 | 2021-03-30 | Vehicle-mounted overhead air conditioner, control method thereof and vehicle |
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| CN113103839A CN113103839A (en) | 2021-07-13 |
| CN113103839B true CN113103839B (en) | 2022-12-23 |
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| WO (1) | WO2022206140A1 (en) |
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| CN113103839B (en) * | 2021-03-30 | 2022-12-23 | 青岛海尔空调器有限总公司 | Vehicle-mounted overhead air conditioner, control method thereof and vehicle |
Citations (6)
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| CN113103839A (en) | 2021-07-13 |
| WO2022206140A1 (en) | 2022-10-06 |
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