CN218112282U - Air conditioning box assembly, air conditioning system comprising same and vehicle - Google Patents
Air conditioning box assembly, air conditioning system comprising same and vehicle Download PDFInfo
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- CN218112282U CN218112282U CN202221695099.8U CN202221695099U CN218112282U CN 218112282 U CN218112282 U CN 218112282U CN 202221695099 U CN202221695099 U CN 202221695099U CN 218112282 U CN218112282 U CN 218112282U
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Abstract
The application provides an air conditioning box assembly, an air conditioning system comprising the same and a vehicle, wherein the air conditioning box is provided with an external air inlet and an external air outlet, and a blower, a heat exchanger and a heater are sequentially arranged in the air conditioning box along the internal air circulation direction; one end of the heat exchanger is connected with the external air inlet, and the other end of the heat exchanger is connected with the external air outlet; a suction member disposed on a passage between an external environment and the external air inlet. The scheme of this application need not open the compressor when carrying out dehumidification heating mode under low temperature environment, avoids the compressor to move the problem that brings under low temperature environment.
Description
Technical Field
The application relates to the technical field of vehicle-mounted air conditioning equipment, in particular to an air conditioning box assembly, an air conditioning system comprising the same and a vehicle.
Background
At present, in order to improve the cruising ability of a new energy vehicle in a low-temperature environment, a dehumidification heating mode of an air conditioning system is widely applied, namely, the heating power consumption is reduced to save electric energy through internal circulation dehumidification heating in the low-temperature environment. An air conditioning system having a dehumidifying and heating function, as shown in fig. 1, includes an air conditioning box including a blower 16, an evaporator 17, a second condenser 18 and a heater 19, and a compressor 11 connected to the air conditioning box, an electronic three-way valve 12, a first condenser 13, a condensing fan 14, an air conditioning side expansion valve 15, a battery side expansion valve 110, a battery side heat exchanger 111 and a liquid storage tank 112. The air conditioning system can work in various modes such as refrigeration, heating, dehumidification heating and the like, and different modes are realized by controlling the working states of all the components.
As shown by arrows in fig. 1, in the dehumidification-heating mode, the refrigerant flows out of the compressor 11, sequentially flows through the electronic three-way valve 12, the second condenser 18, the air-conditioning-side expansion valve 15, the evaporator 17, and the receiver 112, and then flows back to the compressor 11, and at the same time, the internal and external circulation dampers of the air-conditioning box are switched to the internal circulation, and the heater 19 is opened to supplement the heat required for heating. Because a period of time is required for the temperature in the vehicle to rise to the target temperature in the low-temperature environment, the air inlet temperature of the internal circulation entering the air conditioning box is low before the target temperature is reached, so that the evaporator 17 is insufficient in heat absorption, and at the moment, the compressor 11 starts self-protection to prohibit the working circulation of the air conditioning system, and the dehumidification and anti-fogging functions cannot be formed. Also, when the dehumidifying and heating mode needs to be performed, the ambient temperature is generally low, and the reliability of the compressor operating at a low temperature for a long time is difficult to secure.
SUMMERY OF THE UTILITY MODEL
An object of the application is to provide an air conditioning box subassembly and air conditioning system, vehicle including it to solve among the prior art starting wait and the difficult problem of guaranteeing of compressor reliability when the air conditioner carries out dehumidification heating mode under low temperature environment.
The technical scheme of this application provides an air conditioning box subassembly, includes:
the air conditioner comprises an air conditioner box, a heat exchanger and a heater, wherein the air conditioner box is provided with an external air inlet and an external air outlet, and a blower, the heat exchanger and the heater are sequentially arranged in the air conditioner box along the internal circulation direction of air; one end of the heat exchanger is connected with the external air inlet, and the other end of the heat exchanger is connected with the external air outlet;
an intake member disposed on a passage between an external environment and the external air inlet.
In some embodiments, the suction unit is configured with different operating positions, and the flow rate of the suction unit is different at different operating positions.
The air conditioning box assembly in some aspects, further comprising:
the output end of the heat exchanger temperature sensor is connected with the input end of the controller, and the heat exchanger temperature sensor is used for detecting the actual temperature value of the heat exchanger and sending the actual temperature value of the heat exchanger to the controller;
the controller is used for determining a target working gear of the suction part according to a difference value between a preset target temperature value of the heat exchanger and a received actual temperature value of the heat exchanger, and controlling the suction part to be opened according to the target working gear.
The air conditioning box assembly in some aspects, further comprising:
the output end of the humidity sensor is connected with the input end of the controller, and the humidity sensor is used for detecting an actual humidity value in a compartment and sending the actual humidity value in the compartment to the controller;
the controller is used for determining a target working gear of the suction component according to a difference value between a preset target humidity value in the compartment and the received actual humidity in the compartment, and controlling the suction component to be started according to the target working gear.
The air conditioning box assembly in some aspects, further comprising:
the evaporator is connected in series in a transmission passage of the refrigerant of the compressor; the controlled end of the evaporator is connected with a controller and is opened or closed under the control of the controller.
The air conditioning box assembly in some aspects, further comprising:
the output end of the evaporator temperature sensor is connected with the input end of the controller, and the evaporator temperature sensor is used for detecting the actual temperature value of the evaporator and sending the actual temperature value of the evaporator to the controller.
The air conditioning box assembly in some aspects, further comprising:
a filter screen disposed between the intake component and the external environment, and the filter screen detachably disposed in the channel.
The air conditioning box assembly in some aspects, further comprising:
the output end of the external temperature sensor is connected with the input end of the controller, and the external temperature sensor is used for detecting an external environment temperature value and sending the external environment temperature value to the controller;
the output end of the internal temperature sensor is connected with the input end of the controller, and the internal temperature sensor is used for detecting the temperature value in the carriage and sending the temperature value in the carriage to the controller;
the controller is configured to, after receiving a dehumidification and heating control instruction input by a control panel, output a start signal to a controlled end of the blower, a controlled end of the heater, and a controlled end of the suction member if the external environment temperature value is smaller than a first set threshold value, or if a difference between the temperature value in the vehicle cabin and the external environment temperature value is greater than a second set threshold value and the external environment temperature value is smaller than a third set threshold value, where the first set threshold value is smaller than the third set threshold value.
The technical scheme of this application still provides an air conditioning system, includes above arbitrary air conditioning box subassembly and compressor, condenser and ooff valve, the compressor the condenser the ooff valve with air conditioning box subassembly links to each other in order.
The technical scheme of this application still provides a vehicle, the vehicle includes air conditioning box subassembly or air conditioning system of any one above.
By adopting the technical scheme, the method has the following beneficial effects: the application provides an air conditioning box subassembly reaches air conditioning system, vehicle including it, air conditioning box subassembly wherein, directly utilizes the cold air in the external environment to carry out the dehumidification operation to the air in the carriage, and the air is heated in order to realize the heating function by the heater in the carriage after the dehumidification. Specifically, when the external environment temperature is low, the controller is used for controlling the air conditioning box assembly to enter a dehumidification heating mode, the suction component, the blower and the heater are started, the temperature of external environment air sucked into the heat exchanger is low, the surface temperature of the heat exchanger is reduced, air in a carriage with moisture is sucked into the air conditioning box and then contacts with the surface of the heat exchanger to be condensed and dehumidified, and then the air is continuously circulated in the carriage after being heated by the heater. In the scheme, the compressor does not need to be started in the process of executing dehumidification and heating, the running time of the compressor in a low-temperature environment is reduced, and the reliability of the compressor is improved.
Drawings
Fig. 1 is a schematic structural diagram of an air conditioning system with dehumidification and heating functions in the prior art;
FIG. 2 is a schematic structural view of an air conditioning box assembly according to an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating a control signal transmission path of an air conditioning box assembly according to an embodiment of the present application;
FIG. 4 is a schematic view of an embodiment of a screen arrangement according to the present application;
FIG. 5 is a schematic diagram illustrating a control signal transmission path of an air conditioning box assembly according to another embodiment of the present application;
FIG. 6 is a schematic view of an air conditioning box assembly according to another embodiment of the present application;
fig. 7 is a schematic structural diagram of an air conditioning system according to an embodiment of the present application.
Detailed Description
Embodiments of the present application are further described below with reference to the accompanying drawings.
It is easily understood that according to the technical solutions of the present application, a person skilled in the art can substitute various structural modes and implementation modes without changing the spirit of the present application. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present application, and should not be construed as limiting or restricting the technical solutions of the present application in their entirety.
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.
In the following embodiments of the present application, the controller may be implemented by a controller of an air conditioner mounted on a vehicle, and the controller itself has a function of controlling the air conditioner to execute different operation modes, and may control different components to be turned on or off when the air conditioner executes different operation modes, and may control different components to be turned on or off according to detection results of different temperature or humidity sensors disposed in the vehicle, and the like.
The present embodiment provides an air-conditioning box assembly, as shown in fig. 2 and 3, including an air-conditioning box 21, a blower 22, a heat exchanger 23, a heater 24, and a suction part 25, wherein:
the air conditioning box 21 is provided with an external air inlet A and an external air outlet B, and the blower 22, the heat exchanger 23 and the heater 24 are sequentially arranged in the air conditioning box 21 along the internal air circulation direction; in the dehumidifying and heating mode, air in the vehicle compartment is internally circulated, the blower 22 is turned on, and the air in the vehicle compartment is sucked into the air-conditioning case 21 by the blower 22 and sequentially passes through the heat exchanger 23 (i.e., is in contact with the surface of the heat exchanger 23) and the heater 24. One end of the heat exchanger 23 is connected with the external air inlet a, and the other end is connected with the external air outlet B; the suction member 25 is arranged on a channel 26 between the external environment and the external air inlet a. When the suction unit 25 is turned on, the external ambient air is sucked by the suction unit 25, enters the heat exchanger 23 through the external air inlet a, and is then output through the external air outlet B (i.e., the external ambient air enters the inside of the heat exchanger 23 and can lower the surface temperature of the heat exchanger 23). In the above solution, the suction component 25 may be implemented by a fan, a pump, or other components having an air pumping function, the channel 26 may be implemented by a wind pipe, a corrugated pipe, or other components that limit the air flowing direction, the heat exchanger 23 is an air-cooling heat exchanger, and the heater 24 may be implemented by a resistance heater such as a heating wire. The above-mentioned on/off of each component can be realized by operating a switch button preset on an instrument panel, etc., and can also be controlled by a controller 27, that is, the output end of the controller 27 is connected with the controlled end of the blower 22, the controlled end of the heater 24 and the controlled end of the suction component 25, the controller 27 is used for controlling the on/off of the blower 22, the heater 24 and the suction component 25, wherein, in the air-conditioning dehumidification heating mode, the blower 22, the heater 24 and the suction component 25 are controlled to be on, and a user can start the dehumidification heating mode by operating an air-conditioning control panel. In the scheme, when the external environment temperature is low, the temperature of the external environment air sucked into the heat exchanger 23 is low, so that the surface temperature of the heat exchanger 23 is reduced, at this time, the air in the vehicle compartment with the humidity is sucked into the air conditioning box 21, then is in contact with the surface of the heat exchanger 23, is condensed and dehumidified, and then continues to circulate in the vehicle compartment after being heated by the heater 24. Obviously, in the above solution of this embodiment, during the process of performing dehumidification and heating, the compressor does not need to be started, so as to reduce the operation time of the compressor in the low-temperature environment and improve the reliability of the compressor. Meanwhile, the controller 27 directly controls the blower 22, the heater 24 and the suction part 25 to be started, the three parts are simple electric control parts, and the three parts can be started to work after receiving a starting signal, so that the low-temperature protection condition does not exist, and the dehumidification and heating functions can be immediately realized without waiting.
In some aspects, as shown in fig. 4, the air conditioning box assembly further includes a screen 28 disposed between the intake component 25 and the external environment. The filter screen 28 is provided to filter foreign substances in the sucked external ambient air. Wherein, the filter screen 28 can include a single layer or multiple layers, and the mesh density of the filter screen 28 can also be set according to different vehicle types, so as to balance the filtering performance of the filter screen 28 and the resistance to air intake. Further, the filter screen 28 is detachably disposed in the channel 26, and cleaning of the filter screen 28 can be facilitated by designing the filter screen as a detachable mounting means.
Further, in some embodiments of the present application, the suction component 25 in the air conditioning box assembly is configured with different operating positions, and the flow rate of the suction component is different under different operating positions. For example, the suction unit 25 is a fan, and the rotation speed of the fan is different when the fan is operated at different gear positions, and the corresponding amount of suction air is different. In this scheme, the user can actual need adjust the gear of fan, for example all be the temperature extremely low under the present vehicle is located the environment most situation, then can adjust the fan gear this moment lower, and the control cold air enters into the heat exchanger with lower speed, avoids producing too big influence to the interior air of heating carriage.
In some aspects, as shown in fig. 5, the air conditioning box assembly may further include a heat exchanger temperature sensor 32, an output end of which is connected to an input end of the controller 27, wherein the heat exchanger temperature sensor 32 is configured to detect an actual temperature value of the heat exchanger 24 and send the actual temperature value of the heat exchanger 24 to the controller 27; the controller 27 determines a target operating position of the suction component 25 according to a difference between a preset target temperature value of the heat exchanger and a received actual temperature value of the heat exchanger, and controls the suction component 25 to be started according to the target operating position. In this scheme, the controller 27 can automatically control the amount of the intake air according to the temperature value change of the heat exchanger 24, thereby avoiding the condensation of moisture and the like on the surface of the heat exchanger in the vehicle cabin after the intake of too much cold air, and the above target temperature value of the heat exchanger can be obtained through a calibration test and the like before the vehicle leaves the factory.
Further, in some aspects, the air conditioning box assembly may further include a humidity sensor 31, an output end of which is connected to an input end of the controller 27, and the humidity sensor 31 is configured to detect an actual humidity value in the cabin and send the actual humidity value in the cabin to the controller 27; the controller 27 determines a target operating position of the suction unit 25 according to a difference between a pre-stored target humidity value in the vehicle compartment and the received actual humidity in the vehicle compartment, and controls the suction unit 25 to be turned on according to the target operating position. In the air-conditioning dehumidifying and heating mode, when the humidity of the air in the vehicle compartment is high, more cold air suction is required to expand the difference between the surface temperature of the heat exchanger 23 and the temperature of the air in the vehicle compartment, so that the dehumidifying operation can be performed faster. The target humidity value in the carriage can be obtained through calibration tests and other modes before the vehicle leaves a factory.
In some solutions, as shown in fig. 6, in the air conditioning box assembly, an evaporator 41 is further disposed inside the air conditioning box 21; the evaporator 41 is connected in series in a refrigerant transfer path including a compressor; the controlled end of the evaporator 41 is connected to the controller 27, and is turned on or off under the control of the controller 27, and the controller 27 can control the turning on or off of each component according to the operation mode of the air conditioner.
Further, the air conditioning box assembly may further include an evaporator temperature sensor 33, an output end of which is connected to an input end of the controller 27, and the evaporator temperature sensor 33 is configured to detect an actual temperature value of the evaporator 41 and send the actual temperature value of the evaporator to the controller 27. The controller 27, after receiving the actual temperature value of the evaporator, can control the heat exchanger according to the temperature value of the evaporator to prevent an icing condition. The evaporator temperature sensor 33 is already provided in the existing air conditioning box assembly, and thus the controller 27 may directly receive the detection result.
In some aspects, as shown in fig. 5, the air conditioning box assembly may further include an external temperature sensor 29 and an internal temperature sensor 30. An output end of the external temperature sensor 29 is connected with an input end of the controller 27, and the external temperature sensor 29 is configured to detect an external environment temperature value and send the external environment temperature value to the controller 27; the output end of the internal temperature sensor 30 is connected with the input end of the controller 27, and the internal temperature sensor 30 is used for detecting a temperature value in a carriage and sending the temperature value in the carriage to the controller 27; the controller 27 is further configured to, upon receiving a dehumidifying and heating control command input by the control panel, output a start signal to the controlled end of the blower 22, the controlled end of the heater 24, and the controlled end of the suction member 25 if the external environment temperature value is smaller than a first set threshold value, or if a difference between the temperature value in the vehicle cabin and the external environment temperature value is greater than a second set threshold value and the external environment temperature value is smaller than a third set threshold value, where the first set threshold value is smaller than the third set threshold value. In the above, the external temperature sensor 29 and the internal temperature sensor 30 may be implemented by sensors already provided in a vehicle, and temperature sensors having a function of detecting the temperature inside and outside the vehicle compartment are provided in an existing vehicle. The first set threshold, the second set threshold and the third set threshold may be determined according to the heat exchange efficiency of the heat exchanger 23, because the heat exchange principle of the heat exchanger 23 is to dehumidify the air in the vehicle cabin according to the difference between the temperature of the external air entering the heat exchanger and the temperature of the air in the vehicle cabin, if the difference between the temperature of the air in the vehicle cabin and the temperature of the air in the vehicle cabin is very small, the dehumidification effect of the heat exchanger 23 may be affected, and if the external environment is too high, the dehumidification effect cannot be achieved, in this case, the conventional internal circulation dehumidification operation in the prior art may be adopted. For example, the first set threshold value can be selected to be-7 ℃, the second set threshold value can be selected to be 8 ℃, the third set threshold value can be selected to be-2 ℃, the external environment temperature value is lower than-7 ℃ and directly enters a dehumidification heating mode, the external environment temperature value is lower than-2 ℃ and has a difference of more than 8 ℃ with the temperature value in the carriage and the external environment temperature value, and the rest temperature condition can be that the air conditioner box is closed or the compressor dehumidification mode is entered. The scheme is used for the situation that the temperature difference value of air inside and outside the carriage is large, the air temperature of the external environment is very low at the moment, and the problem that the dehumidification and heating functions are affected due to too low temperature can be really avoided by adopting the scheme under the situation.
In some embodiments of the present application, there is further provided an air conditioning system, as shown in fig. 7, including the air conditioning box assembly according to any one of the above aspects, and a compressor 42, a condenser 43 and a switch valve 45, wherein the compressor 42, the condenser 43, the switch valve 45 and the air conditioning box assembly are connected in sequence. As shown in the structure of the conventional air conditioning system, the air conditioning system of the present application may further include a condenser fan 44, a battery-side expansion valve 46, and a battery-side heat exchanger 47. The operation modes of the air conditioning system provided by the embodiment may include cooling, heating, dehumidifying, and the dehumidifying and heating mode proposed in the foregoing embodiments. In specific implementation, the working logic of the cooling mode, the heating mode, the dehumidification mode and the like can be implemented by referring to the prior art, and the dehumidification heating mode is implemented by referring to the working logic provided in the foregoing embodiments of the present application. Taking the structure shown in fig. 7 as an example, in the dehumidification and heating mode, the air intake door of the air conditioning box is adjusted to the internal circulation position, at this time, the compressor 42 stops operating, the air in the vehicle compartment passes through the blower 22, the heat exchanger 23 and the evaporator 41, at this time, the suction part 25 is opened, the low-temperature external ambient air is sucked into the heat exchanger 23, the water vapor contained in the air conditioning internal circulation intake air flow is condensed on the surface of the low-temperature heat exchanger to achieve the dehumidification effect, the dehumidified internal circulation air is finally heated by the heater 24 and blown out, and the external ambient air is discharged to the environment after heat exchange.
In some embodiments, a vehicle is also provided, which comprises the air conditioning system of the above scheme. A vehicle in the present application. The air inlet duct of the traditional air conditioning box is transformed, low-temperature external environment air is introduced for dehumidification, the dehumidification and heating effects are achieved, the cost is low, the stability is good, and the engineering feasibility is high.
According to the needs, the above technical schemes can be combined to achieve the best technical effect. The foregoing is considered as illustrative only of the principles and preferred embodiments of the application. It should be noted that, for a person skilled in the art, several other modifications can be made on the basis of the principle of the present application, and these should also be considered as the scope of protection of the present application.
Claims (10)
1. An air conditioning box assembly, comprising:
the air conditioner comprises an air conditioner box, a heat exchanger and a heater, wherein the air conditioner box is provided with an external air inlet and an external air outlet, and a blower, the heat exchanger and the heater are sequentially arranged in the air conditioner box along the internal circulation direction of air; one end of the heat exchanger is connected with the external air inlet, and the other end of the heat exchanger is connected with the external air outlet;
a suction member disposed on a passage between an external environment and the external air inlet.
2. An air conditioning box assembly as set forth in claim 1, wherein:
the suction component is provided with different working gears, and the flow of the suction component is different under different working gears.
3. An air conditioning box assembly as set forth in claim 2, and further comprising:
the output end of the heat exchanger temperature sensor is connected with the input end of the controller, and the heat exchanger temperature sensor is used for detecting the actual temperature value of the heat exchanger and sending the actual temperature value of the heat exchanger to the controller;
the controller is used for determining a target working gear of the suction component according to a difference value between a preset target temperature value of the heat exchanger and a received actual temperature value of the heat exchanger, and controlling the suction component to be started according to the target working gear.
4. The air conditioning box assembly as set forth in claim 2, further comprising:
the output end of the humidity sensor is connected with the input end of the controller, and the humidity sensor is used for detecting an actual humidity value in a compartment and sending the actual humidity value in the compartment to the controller;
the controller is used for determining a target working gear of the suction component according to a difference value between a preset target humidity value in the compartment and the received actual humidity in the compartment, and controlling the suction component to be started according to the target working gear.
5. The air conditioning box assembly as set forth in claim 1, further comprising:
the evaporator is connected in series in a transmission passage of the refrigerant of the compressor; the controlled end of the evaporator is connected with a controller and is opened or closed under the control of the controller.
6. The air conditioning box assembly as set forth in claim 5, further comprising:
the output end of the evaporator temperature sensor is connected with the input end of the controller, and the evaporator temperature sensor is used for detecting the actual temperature value of the evaporator and sending the actual temperature value of the evaporator to the controller.
7. The air conditioning box assembly as set forth in claim 1, further comprising:
a filter screen disposed between the intake component and the external environment, and the filter screen is detachably disposed in the channel.
8. The air conditioning box assembly as set forth in claim 1, further comprising:
the output end of the external temperature sensor is connected with the input end of the controller, and the external temperature sensor is used for detecting an external environment temperature value and sending the external environment temperature value to the controller;
the output end of the internal temperature sensor is connected with the input end of the controller, and the internal temperature sensor is used for detecting the temperature value in the carriage and sending the temperature value in the carriage to the controller;
the controller is configured to, after receiving a dehumidification and heating control instruction input by a control panel, output a start signal to a controlled end of the blower, a controlled end of the heater, and a controlled end of the suction member if the external environment temperature value is smaller than a first set threshold value, or if a difference between the temperature value in the vehicle cabin and the external environment temperature value is greater than a second set threshold value and the external environment temperature value is smaller than a third set threshold value, where the first set threshold value is smaller than the third set threshold value.
9. An air conditioning system, comprising an air conditioning box assembly as claimed in any one of claims 1 to 8, and a compressor, a condenser and a switch valve, wherein the compressor, the condenser, the switch valve and the air conditioning box assembly are connected in sequence.
10. A vehicle, characterized in that the vehicle comprises an air conditioning box assembly as claimed in any one of claims 1-8 or an air conditioning system as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221695099.8U CN218112282U (en) | 2022-06-30 | 2022-06-30 | Air conditioning box assembly, air conditioning system comprising same and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221695099.8U CN218112282U (en) | 2022-06-30 | 2022-06-30 | Air conditioning box assembly, air conditioning system comprising same and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN218112282U true CN218112282U (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221695099.8U Active CN218112282U (en) | 2022-06-30 | 2022-06-30 | Air conditioning box assembly, air conditioning system comprising same and vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN218112282U (en) |
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2022
- 2022-06-30 CN CN202221695099.8U patent/CN218112282U/en active Active
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