JP5949151B2 - Air conditioner for vehicles - Google Patents

Description

  The present invention relates to a vehicle air conditioner that performs air conditioning in a passenger compartment of a vehicle.

  The desiccant air conditioning system is a system that performs air conditioning using a desiccant material (desiccant member) that is a dehumidifying agent. FIG. 8 is an explanatory diagram showing a configuration of a desiccant air conditioning system according to a conventional technique. The desiccant air conditioning system 800 according to the prior art is provided with an air introduction passage 810a through which air introduced from the outside passes and an air discharge passage 810b through which air is discharged from the air-conditioned room to the outside.

  The air introduction flow path 810a and the regeneration flow path 810b are provided with a desiccant rotor 801 and a sensible heat exchange rotor 802 in order from the outside. The desiccant rotor 801 and the sensible heat exchange rotor 802 always rotate, and come into contact with the air passing through the air introduction flow path 810a and the air passing through the regeneration flow path 810b alternately.

  The air introduced from the outside by the action of the blower fan 803a comes into contact with the desiccant rotor 801 in the air introduction flow path 810a, and the humidity in the air is removed. The dehumidified air is adjusted to a desired temperature in contact with the sensible heat exchange rotor 802, and supplied to the air-conditioned room as comfortable air.

  On the other hand, the return air from the air-conditioned room is introduced into the regeneration flow path 810b by the action of the blower fan 803b. The return air from the air-conditioned room contacts the sensible heat exchange rotor 802 in the regeneration flow path 810b and exchanges heat with the sensible heat exchange rotor 802. The air subjected to heat exchange is heated by an air heater 803. The air heater 803 can use various exhaust heat or solar heat as a heat source. The air heated by the air heater 803 comes into contact with the desiccant rotor 801 to remove moisture in the desiccant rotor 801 (regeneration of the desiccant rotor) and is discharged to the outdoors.

  For example, Patent Documents 1 and 2 below apply a desiccant air-conditioning system according to the prior art to a vehicle air-conditioner, and are used to introduce air into the vehicle interior and discharge air outside the vehicle. A moisture absorption rotor is rotatably disposed across the regeneration path. The hygroscopic rotor has a hygroscopic material applied to the surface and allows air to pass therethrough. The air introduced into the air introduction path by the first fan is dehumidified when passing through the hygroscopic rotor, and after that, the air is passed through a cooling heat exchanger and a heating heat exchanger, and then brought to an appropriate temperature. be introduced. The air introduced into the regeneration path by the second fan is heated through the heat exchanger for heating, and then deprived of moisture absorbed when passing through the hygroscopic rotor, and then discharged outside the vehicle. The

JP 2006-240573 A JP 2006-240575 A

  As described above, since the desiccant air conditioning system according to the prior art needs to regenerate the desiccant rotor, two flow paths, that is, an air introduction flow path and a regeneration flow path are required. Moreover, these two flow paths need to be provided adjacent to each other. For this reason, when the desiccant air conditioning system is applied to a vehicle air conditioner, an air introduction passage for introducing air from the outside of the vehicle into the vehicle and an air discharge passage for discharging air from the inside of the vehicle to the outside of the vehicle are adjacent to each other. It is necessary to provide it.

  However, in order to realize such a structure, there is a problem that the HVAC (Heating, Ventilation, and Air Conditioning) structure of the vehicle becomes complicated and the HVAC structure becomes large. Vehicle space is limited and the introduction of such a large HVAC structure is not practical. Moreover, since the manufacturing cost of a vehicle will increase if the HVAC structure becomes complicated, the application of the desiccant air-conditioning system to a vehicle air-conditioning apparatus becomes impractical.

  The present invention has been made in view of the above-described problems of the prior art, and an object thereof is to provide a vehicle air conditioner to which a desiccant air conditioning system that does not require a regeneration path is applied.

In order to solve the above-described problems and achieve the object, a vehicle air conditioner according to the invention of claim 1 includes an air introduction unit that introduces outside air into the vehicle interior, and a heating unit that heats the air. The flow path of the air introduced by the air introduction means is a first flow path that reaches the vehicle interior via the heating means or a first flow path that reaches the vehicle interior without passing through the heating means. A flow path switching means for switching to one of the two flow paths, and a dehumidifying member upstream of the heating means of the first flow path, downstream of the heating means of the first flow path, and the second Dehumidifying member switching means for switching to any position in the flow path, and control means for controlling switching of the flow path by the flow path switching means and switching of the position of the dehumidifying member by the dehumidifying member switching means. The control means is for heating in the passenger compartment. The flow path switching means switches the air flow path to the first flow path and the dehumidification member switching means switches the position of the dehumidification member upstream of the heating means of the first flow path, When cooling in the passenger compartment, the air flow path is switched to the second flow path by the flow path switching means, and the position of the dehumidification member is placed in the second flow path by the dehumidification member switching means. When switching and regenerating the dehumidifying member, the flow path switching means switches the air flow path to the first flow path and the dehumidifying member switching means changes the position of the dehumidifying member to the first flow path. It switches to the downstream of the said heating means.
The air conditioner for a vehicle according to the invention of claim 2 further includes a dehumidifying means that is disposed upstream of the flow path switching means of the air flow introduced by the air introducing means and dehumidifies the air. It is characterized by.
The vehicle air conditioner according to a third aspect of the invention is characterized in that the dehumidifying member is regenerated while the vehicle on which the vehicle air conditioner is mounted is stopped.
According to a fourth aspect of the present invention, there is provided a vehicle air conditioner, wherein the vehicle on which the vehicle air conditioner is mounted is an electric vehicle that travels using electric power for at least a part of power, and the regeneration of the dehumidifying member is performed. It is performed during charging of the electric vehicle.
According to a fifth aspect of the present invention, the vehicle air conditioner further includes a housing, and the flow path switching means includes an air mix damper disposed movably in the housing. The first flow path and the second flow path are formed in the housing by switching a moving position of the air mix damper.

According to the first aspect of the present invention, the heating means, the cooling operation, and the regeneration operation in the vehicle air conditioner are performed by switching the flow path and the position of the dehumidifying member by the control means. As a result, in the air conditioning system using the dehumidifying member, there is no need to provide a flow path for regeneration, and an air conditioning system (desiccant air conditioning system) using the dehumidifying member is also used for a vehicle air conditioner with a limited installation space. Applicable.
According to the invention of claim 2, since the dehumidifying means is provided in addition to the dehumidifying member having dehumidifying performance, the air conditioning capability of the vehicle air conditioner can be further improved.
According to the third aspect of the present invention, since the dehumidifying member is regenerated (regeneration operation) while the vehicle equipped with the vehicle air conditioner is stopped, the regeneration operation is performed when there is a high possibility that the user is not on the vehicle. It is possible to prevent the user from coming into contact with the humid air generated in the regeneration operation.
According to the invention of claim 4, when the vehicle on which the vehicle air conditioner is mounted is an electric vehicle, the regeneration operation is performed while the electric vehicle is being charged. Since there is a high possibility that the vehicle will not be used for the time until the end of charging, it is possible to perform the regeneration operation when there is a high possibility that the user is not on the vehicle, and it is possible to secure a sufficient time for the regeneration operation. Further, by performing the regeneration operation while the vehicle is being charged, it is possible to easily secure the electric power necessary for the regeneration operation.
According to the invention of claim 5, since the first flow path and the second flow path are formed in the housing by switching the movement position of the air mix damper, the configuration of the conventional vehicle air conditioning system When the desiccant air conditioning system is applied to a vehicle air conditioner, the degree of change in design or the like can be reduced.

It is a block diagram which shows the structure of the vehicle air conditioner 100 concerning embodiment. It is explanatory drawing which shows the structure of the vehicle air conditioner 100 concerning embodiment. It is explanatory drawing which shows the structure of the vehicle air conditioner 200 concerning a comparative example. FIG. 5 is an explanatory view showing a structure of a desiccant member 104. It is explanatory drawing which shows arrangement | positioning of each structure of the vehicle air conditioner 100 at the time of heating. It is explanatory drawing which shows arrangement | positioning of each structure of the vehicle air conditioner 100 at the time of air_conditioning | cooling. It is explanatory drawing which shows arrangement | positioning of each structure of the vehicle air conditioner 100 at the time of reproduction | regeneration driving | operation. It is explanatory drawing which shows the structure of the desiccant air conditioning system concerning a prior art.

  Exemplary embodiments of a vehicle air conditioner according to the present invention will be explained below in detail with reference to the accompanying drawings.

(Embodiment)
FIG. 1 is a block diagram illustrating a configuration of a vehicle air conditioner 100 according to an embodiment. A vehicle air conditioner 100 according to an embodiment includes a blower fan (air introduction means) 101, a heater core (heating means) 102, an air mix damper (flow path switching means) 103, a desiccant member (dehumidification member) 104, a desiccant. It comprises a member switching means 104M, an evaporator (dehumidifying means) 105, a wind direction adjusting damper 106, a control means 107, an operating means 108, and a temperature / humidity meter 109.

  The blower fan 101, the heater core 102, the air mix damper 103, the desiccant member switching means 104M, the evaporator 105, the wind direction adjusting damper 106, and the operating means 108 are connected to the control means 107, respectively. Based on the air conditioning setting (for example, temperature setting) input via the operation unit 108 and the measured value measured by the temperature / humidity meter 109, the control unit 107 is connected to the blower fan 101, the heater core 102, the air mix damper 103, The desiccant member switching means 104M evaporator 105 and the wind direction adjusting damper 106 are controlled.

  FIG. 2 is an explanatory diagram illustrating a structure of the vehicle air conditioner 100 according to the embodiment. Moreover, FIG. 3 is explanatory drawing which shows the structure of the vehicle air conditioner 200 concerning a comparative example. The vehicle air conditioner 200 according to the comparative example includes a blower fan 201, a heater core 202, an air mix damper 203, an evaporator 205, a wind direction adjusting damper 206 (a first wind direction adjusting damper 206a and a second wind direction adjusting damper 206b. ), Constituted by a control means (not shown).

  2 and 3, in the vehicle air conditioner 100 according to the embodiment, the desiccant member 104 is provided at the position of the air mix damper 203 in the vehicle air conditioner 200 according to the comparative example, and the desiccant member 104 Two air mix dampers 103 (a first air mix damper 103a and a second air mix damper 103b) are provided on the upstream side. Other configurations are common to the vehicle air conditioner 100 according to the embodiment and the vehicle air conditioner 200 according to the comparative example. The functions of the components (for example, the blower fan 101 and the blower fan 201) are also common to the vehicle air conditioner 100 according to the embodiment and the vehicle air conditioner 200 according to the comparative example.

  In the vehicle air conditioner 200 according to the comparative example, the air mix damper 203 is moved to the position Sf1 during heating so that air (outside air) supplied by the action of the blower fan 201 passes through the heater core 202. The air that has passed through the heater core 202 is supplied to the vehicle interior, thereby heating the vehicle interior. At the time of cooling, the air mix damper 203 is moved to the position Sf2, the air (outside air) supplied by the action of the blower fan 201 is dehumidified by the evaporator 205, and then supplied to the vehicle interior without passing through the heater core 202. Like that. Thereby, the passenger compartment is cooled.

The structure of the vehicle air conditioner 100 according to the embodiment shown in FIG. 2 will be described in more detail.
The vehicle air conditioner 100 includes a housing 110, and the blower fan 101 introduces air outside the vehicle into the vehicle interior via the housing 110. More specifically, the blower fan 101 generates air flow from the vehicle exterior direction to the vehicle interior direction in the duct by rotating the wings, and from an air intake port (not shown) provided outside the vehicle. Air is introduced into the housing 110. The air introduced into the housing 110 is further sent toward the passenger compartment along the flow generated by the blower fan 101. The rotation of the blower fan 101 is controlled by, for example, the control means 107 (see FIG. 1).

  The heater core 102 heats air. More specifically, the heater core 102 is circulated with a refrigerant (or cooling water) heated by an engine or a heater. In the heater core 102, the air is heated by supplying heat from the refrigerant to the air passing through the heater core 102 by the action of the blower fan 101. In the present embodiment, the heater core 102 is installed at a substantially central portion of the upper surface of the housing 110.

  In the housing 110, the flow path of the air introduced by the blower fan 101 (air introduction means) is led from the air introduction port 110a to the air discharge port 110b via the heater core 202, and the outside air is brought into the vehicle interior. There are provided a first flow path F1 and a second flow path F2 that allows the air introduction port 110a to reach the air discharge port 110b without passing through the heater core 202 and allows outside air to reach the vehicle interior.

  The flow path switching means is a first flow path or heater core 102 (through the air flow path introduced by the blower fan 101 (air introduction means) that reaches the vehicle interior via the heater core 102 (heating means). Switch to one of the second flow paths that reach the passenger compartment without going through the heating means. The flow path switching means includes an air mix damper 103 movably disposed in the housing 110, and the first flow path F1 and the second flow path F2 have a moving position of the air mix damper 103. It is formed in the housing 110 by being switched. The air mix damper 103 includes a first air mix damper 103a and a second air mix damper 103b.

  The first air mix damper 103a is swingable about the support shaft 103ax, and as shown in FIGS. 5 and 7, which will be described later, when the first flow path F1 is formed, the first air mix damper 103a is in the standing position Sa2. As shown, the fall position Sa1 is set when the second flow path F2 is formed. The second air mix damper 103b is swingable about the support shaft 103bx, and as shown in FIGS. 5 and 7, the second air mix damper 103b is set to the fall position Sb1 fitted to the housing when the first flow path F1 is formed. As shown in FIG. 6, when the second flow path F <b> 2 is formed, the standing position Sb <b> 2 protruding forward of the heater core 102 is set.

  Various conventionally known actuators such as motors and solenoids can be used as actuators for swinging the first air mix damper 103a and the second air mix damper 103b.

  The desiccant member switching unit 104M (dehumidifying member member switching unit) moves the desiccant member 104 (dehumidifying member) to the first position Sd1, which is upstream of the heater core 102 (heating unit) of the first flow path F1. The position is switched to either the second position Sd2 downstream of the heater core 102 (heating means) in the flow path F1 or the third position Sd3 which is a position in the second flow path F2.

  The desiccant member 104 is swingable about the support shaft 104x, and a conventional actuator such as a motor or a solenoid is used as an actuator that swings the desiccant member 104 to the first position Sd1, the second position Sd2, and the third position Sd3. Various known actuators can be used. In the present embodiment, the desiccant member 104 is located substantially directly below the heater core 102.

  FIG. 4 is an explanatory view showing the structure of the desiccant member 104. When the air passes through the honeycomb structure H, the desiccant member 104 removes humidity (water vapor) from the air. The humidity removed from the air is accumulated in the desiccant member 104, and the dehumidifying performance of the desiccant member 104 decreases with the passage of the use period. However, when high-temperature air is supplied into the desiccant member 104 during the regeneration operation described later. By removing the humidity accumulated in the desiccant member 104, the dehumidifying performance of the desiccant member 104 is restored. The desiccant member 104 is made of, for example, a hygroscopic agent such as silica gel or zeolite, and has a honeycomb structure H as shown in FIG.

  The evaporator 105 is provided upstream of the air mix damper 103 and dehumidifies the air. More specifically, the evaporator 105 cools the air using the heat of vaporization of the refrigerant and removes water vapor contained in the air. In the present embodiment, the evaporator 105 is provided at the inlet of the housing 110, and the air mix damper 103 uses the air flow path dehumidified by the evaporator 105 as the first flow path F1 or the second flow path F2. Switch to one. Note that when the dehumidifying performance of the desiccant member 104 is sufficiently high, the evaporator 105 may not be provided.

  The wind direction adjusting damper 106 (the first wind direction adjusting damper 106a and the second wind direction adjusting damper 106b) discharges air that has undergone heat exchange processing in the housing 110 from a desired location in the vehicle interior. It is means of. The moving direction of the wind direction adjusting damper 106 is controlled by the control means 107 in accordance with the air conditioning setting by the passenger. In the present embodiment, a first wind direction adjusting damper 106a and a second wind direction adjusting damper 106b are provided outside the air discharge port 110b of the housing 110. Further, on the outside of the air discharge port 110b of the housing 110, there is a flow path 111a (DEF) for supplying conditioned air for defrosting around the windshield in the vehicle interior, and air conditioned air near the upper body of the passenger in the vehicle interior. There are three flow paths: a flow path 111b (FACE) for supplying air and a flow path 111c (FOOT) for supplying air-conditioned air near the lower half of the passenger in the passenger compartment.

  When the first wind direction adjusting damper 106a moves to the position Sc1, the supply of conditioned air to the flow path 111a (DEF) is interrupted, and the conditioned air is discharged from the periphery of the windshield in the vehicle interior. Absent. Further, when the first wind direction adjusting damper 106a moves to the position Sc2, the supply of conditioned air to the flow path 111b (FACE) and the flow path 111c (FOOT) is interrupted, and the upper body of the passenger in the passenger compartment Air conditioned air is not discharged near or near the lower body.

  In addition, when the second wind direction adjusting damper 106b moves to the position Se1, the supply of air-conditioned air to the flow path 111b (FACE) is interrupted, and air-conditioned air is placed near the upper body of the passenger in the passenger compartment. There is no discharge. In addition, when the second wind direction adjusting damper 106a moves to the position Se2, the supply of conditioned air to the flow path 111c (FOOT) is interrupted, and air conditioned air is placed near the lower body of the passenger in the passenger compartment. There is no discharge.

  The above-described movable region of the air mix damper 103, the desiccant member 104, and the wind direction adjusting damper 106, the shape of the housing 110, and the like are examples, and if the air flow intended by the present invention can be realized, It is not limited to.

The control means 107 (see FIG. 1) switches the flow path by the air mix damper 103 (flow path switching means) and the position of the desiccant member 104 (dehumidification member) by the desiccant member switching means 104M (dehumidification member switching means). Control.
The control means 107 includes, for example, a CPU, a ROM that stores and stores a control program, a RAM as an operation area of the control program, an EEPROM that holds various data in a rewritable manner, an interface unit that interfaces with peripheral circuits, and the like. An ECU (not shown) configured to include the control program is executed by the CPU.

  More specifically, the control means 107 switches the air flow path to the first flow path F1 by the air mix damper 103 (flow path switching means) and performs desiccant member switching means 104M (dehumidification) when heating in the passenger compartment. The position of the desiccant member 104 (dehumidifying member) is switched to the position Sd1 upstream of the heater core 102 (heating means) of the first flow path F1 by the member switching means). Further, the control means 107 switches the air flow path to the second flow path F2 by the air mix damper 103 (flow path switching means) and performs desiccant member switching means 104M (dehumidification member switching means) when cooling in the passenger compartment. ) To switch the position of the desiccant member 104 (dehumidifying member) to the position Sd3 in the second flow path. Further, the control means 107 switches the air flow path to the second flow path F2 by the air mix damper 103 (flow path switching means) and regenerates the desiccant member switching means 104M when the desiccant member 104 (dehumidification member) is regenerated. (Dehumidifying member switching means) switches the position of the desiccant member 104 (dehumidifying member) to a position Sd2 downstream of the heater core 102 (heating means) of the first flow path F1.

  FIG. 5 is an explanatory diagram showing the arrangement of the components of the vehicle air conditioner 100 during heating. When heating is performed in the passenger compartment, the control means 107 switches the air mix damper 103 so that the air flow path is the first flow path F1. That is, the control means 107 places the first air mix damper 103a in the upright position Sa2 and the second air mix damper 103b in the lying position Sb1, and sends the air flowing from the outside of the vehicle to the heater core 102 side. Moreover, the control means 107 moves the position of the desiccant member 104 to the upstream of the heater core 102 of the 1st flow path F1. That is, the control means 107 moves the desiccant member 104 to a position Sd1 that is a plane side of the heater core 102 on the air introduction port 110a side.

  Thereby, the air supplied by the action of the blower fan 101 passes through the vehicle air conditioner 100 in the order of the evaporator 105, the desiccant member 104, and the heater core 102. The air dehumidified by the evaporator 105 and the desiccant member 104 is heated by the heater core 102 and supplied to the passenger compartment as the appropriate temperature air. Note that the evaporator 105 may be turned off during heating.

  FIG. 6 is an explanatory diagram showing the arrangement of the components of the vehicle air conditioner 100 during cooling. When performing cooling in the passenger compartment, the control means 107 switches the air mix damper 103 so that the air flow path is the second flow path F2. That is, the control means 107 places the first air mix damper 103a in the lying position Sa1 and the second air mix damper 103b in the standing position Sb2, and sends the air flowing from the outside of the vehicle to the heater core 102 side. Do not. Further, the control means 107 moves the desiccant member 104 to the second flow path F2. That is, the control means 107 moves the desiccant member 104 to a position Sd3 that is perpendicular to the bottom surface of the housing 110.

  Thereby, the air supplied by the action of the blower fan 101 passes through the vehicle air conditioner 100 in the order of the evaporator 105 and the desiccant member 104. The air that has been dehumidified by the evaporator 105 and the desiccant member 104 and has a low sensible temperature is supplied to the passenger compartment as appropriate temperature air.

  In addition, the arrangement | positioning at the time of heating shown in FIG. 5 and the arrangement | positioning at the time of cooling shown in FIG. The angle of the air mix damper 103 is controlled according to the output to be performed.

  FIG. 7 is an explanatory diagram showing the arrangement of the components of the vehicle air conditioner 100 during the regeneration operation. As described above, since the desiccant member 104 accumulates the humidity removed from the air, the dehumidifying performance decreases as the usage period elapses. In the regeneration operation, the dehumidifying performance of the desiccant member 104 is recovered by supplying high-temperature air into the desiccant member 104 and depriving the humidity accumulated in the desiccant member 104.

  When performing the regeneration operation, the control means 107 switches the air mix damper 103 so that the air flow path is the first flow path F1. That is, the control means 107 places the first air mix damper 103a in the upright position Sa2 and the second air mix damper 103b in the lying position Sb1, and sends the air flowing from the outside of the vehicle to the heater core 102 side. Further, the control means 107 moves the desiccant member 104 downstream of the heater core 102 in the first flow path F1. That is, the control means 107 moves the desiccant member 104 to a position Sd2 that is a plane side of the heater core 102 on the air discharge port 110b side.

  Thereby, the air supplied by the action of the blower fan 101 passes through the vehicle air conditioner 100 in the order of the evaporator 105, the heater core 102, and the desiccant member 104. When the air heated by the heater core 102 passes through the desiccant member 104, the humidity accumulated in the desiccant member 104 is removed, and the dehumidifying performance of the desiccant member 104 is restored.

  The air that has passed through the desiccant member 104 is humid air that contains a large amount of humidity accumulated in the desiccant member 104. This humid air is discharged from, for example, a ventilation duct called an outlet. For this reason, even after the regeneration operation is completed, air outside the vehicle is introduced by the blower fan 101 to encourage exhaust. Although the outlet position varies depending on the vehicle type, for example, the humid air is discharged from the outlet provided on the rear seat side.

  The regeneration (regeneration operation) of the desiccant member is performed, for example, while the vehicle on which the vehicle air conditioner 100 is mounted is stopped. By performing the regeneration operation while the vehicle is stopped, that is, when the user is not on the vehicle, the user can be prevented from coming into contact with the humid air generated by the regeneration operation. Further, for example, in a vehicle having a so-called “pick-up air-conditioning function” in which the user designates the vehicle start time in advance and keeps the inside of the vehicle in a desired air-conditioning state by that time, the pick-up air-conditioning function is in operation (or The regeneration operation may be performed before the start of operation. As a result, the regenerating operation can be performed during a time zone when the user is not reliably in the vehicle, and the possibility that the user contacts the humid air generated by the regenerating operation can be further reduced.

  Further, when the vehicle on which the vehicle air conditioner 100 is mounted is an electric vehicle that travels using electric power for at least a part of the power, the regeneration operation may be performed while the electric vehicle is being charged. This is because during charging, there is a high possibility that the vehicle will not be used for the time until the end of charging, and there is a high possibility that sufficient time can be secured for the regeneration operation. Further, if the regeneration operation is performed while the vehicle is being charged, it is possible to easily secure the electric power necessary for the regeneration operation. The regeneration operation may be performed in accordance with the scheduled charging end time.

  As described above, according to the vehicle air conditioner 100 according to the embodiment, the heating means, the cooling operation, and the regeneration operation are performed by switching the positions of the air mix damper 103 and the desiccant member 104 by the control means 107. As a result, in the air conditioning system using the desiccant member 104, there is no need to provide a regeneration flow path, and the air conditioning system using the desiccant member can be applied to the vehicle air conditioner 100 having a limited installation space. Become.

  Further, according to the vehicle air conditioner 100, the configuration of the conventional vehicle air conditioning system (see FIG. 3) can be used almost as it is, and when the air conditioning system using the desiccant member 104 is applied to a vehicle, The degree of change in design or the like can be reduced.

  Moreover, according to the vehicle air conditioner 100, since the evaporator 105 is provided in addition to the desiccant member 104 having the dehumidifying performance, the air conditioning capability of the vehicle air conditioner can be further improved. Moreover, since the output of the evaporator 105 can be reduced compared with the conventional vehicle air conditioning system, the amount of energy required for air conditioning can be reduced.

  Further, according to the vehicle air conditioner 100, the regeneration of the desiccant member 104 is performed while the vehicle is stopped. Therefore, the regeneration operation can be performed when there is a high possibility that the user is not on the vehicle. It is possible to avoid the user from coming into contact with the humid air generated during operation. When the vehicle on which the vehicle air conditioner 100 is mounted is an electric vehicle, if the regeneration operation is performed while the electric vehicle is being charged, there is a high possibility that the vehicle will not be used for the time until the end of charging. The regeneration operation can be performed when there is a high possibility that the vehicle is not on the vehicle, and sufficient time can be secured for the regeneration operation. Further, by performing the regeneration operation while the vehicle is being charged, it is possible to easily secure the electric power necessary for the regeneration operation.

  DESCRIPTION OF SYMBOLS 100 ... Vehicle air conditioner, 101 ... Blower fan, 102 ... Heater core, 103 ... Air mix damper, 103a ... First air mix damper, 103b ... Second air mix damper, 104 ... Desiccant member, 104M... Moving means, 105... Evaporator, 106 (106a, 106b) .. Wind direction adjusting damper, 107... Control means, 108. .

Claims (5)

Air introduction means for introducing outside air into the vehicle interior;
A heating means for heating the air;
The air flow path introduced by the air introducing means is a first flow path that reaches the vehicle interior via the heating means, or a second flow that reaches the vehicle interior without passing the heating means. A flow path switching means for switching to any of the flow paths;
Dehumidifying member switching means for switching the dehumidifying member to any position in the first flow path upstream of the heating means, downstream of the first flow path of the heating means, or in the second flow path. When,
Control means for controlling switching of the flow path by the flow path switching means and switching of the position of the dehumidification member by the dehumidification member switching means,
When heating is performed in the vehicle interior, the control means switches the air flow path to the first flow path by the flow path switching means and positions the dehumidification member by the dehumidification member switching means. When the air flow is switched to the upstream of the heating means and cooling is performed in the vehicle interior, the air flow path is switched to the second flow path by the flow path switching means and the dehumidifying member switching means is When switching the position of the dehumidifying member into the second flow path and regenerating the dehumidifying member, the flow path switching means switches the air flow path to the first flow path and the dehumidifying member switching means. To switch the position of the dehumidifying member downstream of the heating means of the first flow path.   The vehicle air conditioner according to claim 1, further comprising a dehumidifying unit that is disposed upstream of the flow path switching unit of the air flow introduced by the air introducing unit and dehumidifies the air.   The vehicle air conditioner according to claim 1 or 2, wherein the regeneration of the dehumidifying member is performed while the vehicle on which the vehicle air conditioner is mounted is stopped. The vehicle on which the vehicle air conditioner is mounted is an electric vehicle that travels using electric power for at least part of the power,
The vehicle air conditioner according to claim 1 or 2, wherein the regeneration of the dehumidifying member is performed during charging of the electric vehicle. The vehicle air conditioner further includes a housing,
The flow path switching means is configured to include an air mix damper movably disposed in the housing,
The said 1st flow path and the said 2nd flow path are formed in the said housing, when the movement position of the said air mix damper is switched, The any one of Claims 1-4 characterized by the above-mentioned. The vehicle air conditioner described in 1.

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