KR20130057650A - Heating and cooling device for steering wheel of automotive vehicles - Google Patents

Abstract

PURPOSE: A steering wheel air conditioner for a vehicle is provided to improve convenience of a driver and to supply optimal driving conditions to the driver regardless of seasons. CONSTITUTION: A steering wheel air conditioner comprises a cool air and warm air generation unit(30) and a control unit(40). A steering wheel(10) is cooled or is heated so that the cool air and warm air generation unit cools and heats the steering wheel. The control unit cools the cool air and warm air generation unit according to a predetermined data inputted from an air conditioning device(20) and cools or heats the steering wheel. [Reference numerals] (22) Blower; (24) Evaporator; (25) Heater door; (27) Temperature control door; (28) Mode door; (29) Electronic control unit; (29a) Ambient air sensor; (29b) In-car sensor; (29c) Insolation sensor; (40) Control unit; (50) Air-conditioning off switch

Description

HEAT AND COOLING DEVICE FOR STEERING WHEEL OF AUTOMOTIVE VEHICLES}

The present invention relates to a steering wheel cooling and heating device for a vehicle, and more particularly, by configuring the steering wheel to be automatically operated in conjunction with the air conditioner while cooling and heating the air conditioner, an optimal driving environment regardless of the season. The present invention relates to a steering wheel heating and cooling device for a vehicle capable of providing a driver's comfort.

In the hot summer months or in the cold winter months, the interior of the main and parked vehicles is kept very low or very high.

In particular, the steering wheel, which is directly exposed to intense sunlight and cold, maintains a very high or very low surface temperature that is difficult for the driver to grip by hand.

Therefore, the driver suffers a great deal of trouble every time he / she drives a vehicle that is main and stopped during the summer or winter season.

On the other hand, in consideration of this, a technology for preheating the steering wheel during the low temperature winter has been developed and used.

This technology is provided by winding a heating wire around the steering wheel, and is configured to heat the steering wheel to a constant temperature when the driver presses the "steering wheel preheat switch" on the front panel to turn it ON.

Therefore, the surface temperature of the steering wheel is warmed up to a state suitable for the driver to grip. This provides a comfortable driving environment for the driver.

However, such a conventional technology has a disadvantage in that it can be used only in winter, since it is a structure for preheating the steering wheel, and in summer, when the surface temperature of the steering wheel becomes very high.

And because of these shortcomings, when the surface temperature of the steering wheel becomes very high in the summer, the driver is still in great trouble.

In addition, the prior art has a disadvantage in that the "steering wheel preheating switch" must be turned on and turned on one by one in order to preheat the steering wheel, and it has been pointed out that a problem that is very troublesome to use due to this disadvantage.

The present invention has been made to solve the above-mentioned conventional problems, the object is to configure the steering wheel to be able to cool, heating, so that the driver grips the steering wheel in winter as well as in summer when the temperature is high. An object of the present invention is to provide a steering wheel air conditioner for a vehicle that can be adjusted to an appropriate temperature.

Another object of the present invention is to provide a steering wheel cooling and heating apparatus for a vehicle that can improve a driving environment of a driver by configuring the steering wheel to be adjusted to a temperature suitable for a driver regardless of the season.

Another object of the present invention, by configuring the cooling and heating of the steering wheel can be operated in conjunction with the air conditioning device, the steering wheel of the vehicle to enable the cooling and heating of the steering wheel automatically controlled without a separate switch operation To provide a heating and cooling system.

Still another object of the present invention is to provide a steering wheel cooling and heating apparatus for a vehicle, which can be configured to automatically control the cooling and heating of the steering wheel without a separate switch operation, thereby improving the convenience of the driver.

In order to achieve this object, the steering wheel air-conditioning apparatus of the vehicle of the present invention, the steering wheel that can steer the vehicle, and the temperature inside the cabin and the air discharge direction automatically in accordance with the set temperature and the temperature outside the vehicle interior automatically. A steering wheel air conditioning apparatus for a vehicle having an air conditioner of an automatic control method, comprising: cooling and warming means for cooling or heating the steering wheel to cool and heat the steering wheel; And a control unit for cooling and heating the steering wheel by cooling or heating the cooling and heating generating means in accordance with specific data input from the air conditioning apparatus.

Preferably, the control unit is configured to cool the steering wheel by cooling and controlling the cooling and warming generation means when specific data input from the air conditioning apparatus satisfies a preset cooling entry condition; When the specific data input from the air conditioning apparatus satisfies a preset heating entry condition, the cooling wheel is heated to generate heat by controlling the cooling and warming means.

The control unit may control the steering wheel to one of cooling and heating modes, and when the preset time is exceeded, the steering wheel may be alternately cooled and heated at a predetermined time interval. It characterized by controlling the means for generating cold and warm air.

According to the steering wheel air-conditioning apparatus of the vehicle according to the present invention, since the steering wheel can be cooled and heated, the steering wheel can be adjusted to a temperature suitable for the driver to grip regardless of the season.

In addition, regardless of the season, the steering wheel can be adjusted to a temperature suitable for the driver to grip, thereby improving the driving environment of the driver.

In addition, since the cooling and heating structure of the steering wheel in conjunction with the air conditioning apparatus, there is an effect that can automatically adjust the cooling and heating of the steering wheel without a separate switch operation.

In addition, since there is a structure that automatically controls the cooling, heating of the steering wheel without a separate switch operation, there is an effect that can improve the convenience of the driver to the maximum.

1 is a view showing the configuration of a steering wheel air conditioning system of a vehicle according to the present invention;
2 is a cross-sectional view taken along the line II-II of FIG. 1;
3 is a graph showing an operation example of a vehicle steering wheel air conditioning apparatus according to the present invention, which shows the heating and cooling entry temperature and the heating and cooling release temperature of the steering wheel;
4 is a flowchart showing an example of operation of the steering wheel air conditioning system of the vehicle according to the present invention.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of a steering wheel air conditioning system of a vehicle according to the present invention will be described in detail.

First, prior to looking at the features of the present invention, a brief description of the steering wheel 10 and the air conditioning apparatus 20 of the vehicle with reference to FIG.

The steering wheel 10 is comprised from the central boss part 12 and the rim part 14 around it, and the several spoke part 16 which connects the boss part 12 and the rim part 14.

When the user rotates the steering wheel 10, the steering shaft 10a connected to the steering wheel 10 rotates to steer the front wheel (steering wheel) of the vehicle. As a result, the driving direction of the vehicle can be switched.

The air conditioner 20 is an automatic control method that automatically adjusts the temperature in the cabin according to external conditions, and includes a blower 22, an evaporator 24, a heater core 25, a temperature control door 27, and various The mode door 28 and the electronic control unit 29 are provided.

The blower 22 inhales outside air or bet, and then blows the sucked inside and outside air into the vehicle interior. The evaporator 24 cools the air blown into the vehicle interior. Therefore, the interior of the vehicle is cooled.

The heater core 25 heats the air blown into a vehicle interior. Therefore, the vehicle interior is heated. The temperature control door 27 controls the amount of cold and warm air blown into the vehicle interior. Therefore, the temperature in the vehicle interior is controlled.

The mode door 28 controls the direction of the air discharged into the vehicle interior. In particular, the discharge direction of the air is controlled to the window glass side (Defrost Mode), or to the driver's and passenger's face side (Vent Mode: Vent Mode), or to the floor side of the cabin (Floor Mode: Floor). Mode).

When the user (driver) sets the temperature in the vehicle interior, the electronic control unit 29 sets the interior vehicle temperature (hereinafter, referred to as "in-vehicle setting temperature"), the outside air sensor 29a, and the in-car sensor 29b. And compares and analyzes data such as the outside air temperature, the inside temperature, and the amount of insolation input from the solar sensor 29c, and the like, and the blower 22, the evaporator 24, the heater core 25, the temperature control door 27, and various modes. The doors 28 are controlled.

Therefore, the temperature and discharge direction of the air blown into the vehicle compartment are adjusted. This automatically controls the temperature in the cabin to the "user set temperature".

The electronic control unit 29 generally controls each of the mode doors 28 in the "vent mode" in the "cooling mode" and in the "floor mode" in the "heating mode". Accordingly, in the "cooling mode", the cool air passing through the evaporator 24 is discharged toward the face of the driver and the passenger, and in the "heating mode", the warmth passing through the heater core 25 is the leg of the driver and the passenger. Discharge to the side.

Next, a steering wheel air conditioning apparatus for a vehicle according to the present invention will be described in detail with reference to FIGS. 1 and 2.

First, the steering wheel air-conditioning apparatus of the present invention is provided with cooling and warmth generating means (30) installed on the steering wheel (10).

The cold and warm air generating means 30 includes a plurality of thermoelectric elements 32 installed along the rim 14 of the steering wheel 10.

The thermoelectric element 32 is embedded in the rim 14 of the steering wheel 10, and the thermoelectric element 32 thus embedded generates cold or hot air in accordance with an electric signal applied thereto. Therefore, the steering wheel 10 can be cooled or heated.

For reference, the thermoelectric element 32 is an electronic substrate using the Peltier effect, in which cold air is emitted from one part and heat is released from the other part according to the change of the applied electrode.

On the other hand, the thermoelectric element 32 of the present invention is built in the rim portion 14 of the steering wheel 10, the heat insulating material 34 is provided on either of the portions (32a) of either side (32a, 32b) It is preferable.

The reason for this configuration is to prevent the cold air or hot air generated in one portion 32a from being transferred to the surface of the rim portion 14, which is the cold air or hot air discharged from the other portion 32b. This is to allow the steering wheel 10 to be efficiently cooled and heated while being transmitted to the surface of 14).

Preferably, the other part 32b of the thermoelectric element 32 in which the heat insulating material 34 is not provided is preferably provided as close to the surface of the rim 14 as possible. This is to allow the cold and hot air emitted from the other part 32b to be more efficiently transmitted to the surface of the rim 14.

In addition, although the thermoelectric element 32 of the present invention is built in the rim portion 14 of the steering wheel 10, it is preferable that the thermoelectric element 32 is intensively installed at the portion held by the driver most.

For example, it is preferable to be provided in the rim 14 of the 12 o'clock side part and the rim 14 of the 4 o'clock and 8 o'clock side part with respect to the hour hand of the clock. Therefore, the part of the rim 14 which the driver grips most can be cooled and heated more effectively.

Referring back to FIG. 1, the steering wheel air conditioning apparatus of the present invention includes a controller 40 for controlling the thermoelectric elements 32 of the steering wheel 10 in association with the air conditioner 20.

The control unit 40 is equipped with a microprocessor, and after receiving the specific data D (hereinafter, referred to as "specific data D") from the air conditioning apparatus 20, the "specific data D provided". The thermoelectric elements 32 of the steering wheel 10 in accordance with the "

In particular, when the "specific data D" provided from the air conditioning apparatus 20 satisfies the preset "cooling entry condition", the thermoelectric elements 32 of the steering wheel 10 are cooled and controlled. Therefore, the cold air discharged from the thermoelectric element 32 allows the steering wheel 10 to be cooled. This cools the steering wheel 10.

When the "specific data D" provided from the air conditioning apparatus 20 satisfies the preset "heating entry condition", the thermoelectric elements 32 of the steering wheel 10 are controlled to generate heat. Thus, the heat released from the thermoelectric element 32 makes it possible to heat the steering wheel 10. Thus, the steering wheel 10 is heated.

On the other hand, the "specific data D" provided from the air conditioner 20 is preferably "in-vehicle set temperature", "outdoor temperature", and "air discharge direction".

The "cooling entry condition item" incorporated in the control unit 40 includes a "cooling entry and exit indoor setting temperature" corresponding to "vehicle setting temperature", "cooling entry and exit air temperature" corresponding to "outdoor temperature", It is preferable that it is the "cooling entrance air discharge direction" corresponding to the "air discharge direction".

At this time, the "cooling entry and exit set temperature" is 25 ° C or lower, the "cooling entry and exit air temperature" is 25 ° C or higher, and the "cooling entry and exit air discharge direction" is preferably the "vent mode".

Therefore, when the " indoor set temperature ", " outer temperature " and " air discharge direction " data provided from the air conditioner 20 are respectively 25 deg. C or lower, 25 deg. Configured to control the cooling of the wheel 10.

The reason for this configuration is that the surface temperature of the steering wheel 10 is cooled when the " indoor set temperature " is 25 deg. C or lower, " outer temperature " This is because it is heated enough.

The "heating entry condition item" built into the control unit 40 includes the "heating entry room set temperature" corresponding to the "vehicle setting temperature", the "heating entry outside air temperature" corresponding to the "outdoor temperature" and the like. It is preferable that it is the "heating entrance air discharge direction" corresponding to the "air discharge direction".

At this time, the "heating entry and exit indoor set temperature" is 19 ° C or higher, the "heating entry air temperature" is 5 ° C or lower, and the "heating entry air discharge direction" is preferably "floor mode".

Therefore, when the " indoor set temperature ", " outer temperature " and " air discharge direction " data provided from the air conditioner 20 are respectively 19 ° C or higher, 5 ° C or lower, and in the "floor mode", Configured to control heating of the wheel 10.

The reason for this configuration is that when the " indoor setting temperature " is 19 占 폚 or higher, " outer air temperature " is 5 占 폚 or lower, and the air discharge direction is the " floor mode " condition, the surface temperature of the steering wheel 10 is heated. This is because it is cooled enough.

Referring back to FIG. 1, the controller 40 controls the steering wheel 10 after cooling or heating, and when the preset time is exceeded, for example, when the time exceeds 20 minutes, the steering wheel 10 is controlled. It is configured to alternately convert the "electrode" applied to the thermoelectric element of 32 at predetermined time intervals.

Therefore, the "cooling action" and the "heating action" of the thermoelectric element 32 is controlled to occur alternately at regular intervals. As a result, the cooling and heating of the steering wheel 10 are controlled to be variable at regular intervals.

The reason for this configuration is to stimulate the driver by alternating cooling and heating of the steering wheel 10.

In particular, if only one of the cooling and heating modes of the steering wheel 10 continues, there is a risk of drowsiness of the driver. Therefore, by alternately controlling the cooling and heating of the steering wheel 10, the driver is stimulated to make the driver drowsy. This is to prevent.

Referring back to FIG. 1, the controller 40 controls the steering wheel 10 in accordance with "specific data D" provided from the air conditioning apparatus 20 while cooling or heating the steering wheel 10. It can also turn off the cooling and heating.

That is, when cooling or heating control of the steering wheel 10, when the "specific data D" provided from the air conditioning apparatus 20 satisfies the built-in "cooling release condition" or "heating release condition", And to remove electricity applied to the thermoelectric element 32 of the steering wheel 10. Therefore, the cooling and heating action of the steering wheel 10 is released.

Preferably, the control unit 40, in the "specific data (D)" provided from the air conditioning apparatus 20, when the "outer air temperature" data satisfies the pre-built "cooling release air temperature", the steering wheel It is good to release the cooling effect of (10).

In addition, among the "specific data (D)" provided from the air conditioner 20, when the "outer air temperature" data satisfies the pre-built "heating release air temperature", the heating action of the steering wheel 10 is released. It is good.

Here, the "cooling release outside air temperature" built into the control unit 40 is preferably set to be lower than the "cooling entry outside air temperature" set for cooling entry of the steering wheel 10 by a "specific temperature value."

For example, as shown in FIG. 3, when the "cooling entry outside air temperature" is 25 ° C or more, the "cooling release outside air temperature" is preferably set to 20 ° C or less.

Thus, the reason for the deviation between the "cooling entry outside air temperature" and the "cooling release outside air temperature" is that if the "cooling entry outside air temperature" and "cooling release outside air temperature" are the same, the cooling entry and cooling of the steering wheel 10 are the same. This is because the release is sensitively reacted based on one temperature, and in this case, the thermoelectric element 32 is frequently turned on and off, and thus the durability may be degraded.

In addition, the "heating release outside air temperature" built into the control unit 40 is preferably set higher by a "specific temperature value" than the "heating entry outside air temperature" set for heating the steering wheel 10.

For example, as shown in FIG. 3, when the "heating entry outside air temperature" is 5 ° C or lower, the "heating release air temperature" is preferably set to 10 ° C or higher.

Thus, the reason for the deviation between the "heating entry air temperature" and the "heat release air temperature" is that, when the "heat entry air temperature" and "heat release air temperature" are the same, heating entry and heating of the steering wheel 10 are the same. This is because the release is sensitively reacted based on one temperature, and in this case, the thermoelectric element 32 is frequently turned on and off, and thus the durability may be degraded.

Referring back to FIG. 1, the steering wheel air conditioning apparatus of the present invention includes a cooling / heating off switch 50 for manually releasing cooling and heating of the steering wheel 10.

When the user (driver) presses and operates, the cooling / heating off switch 50 outputs a "manual off signal S" and inputs the output "manual off signal S" to the control unit 40. .

The control unit 40 erases electricity applied to the thermoelectric element 32 of the steering wheel 10 according to the input "manual off signal S". Therefore, the cooling and heating action of the steering wheel 10 is stopped.

Since the cooling and heating off switch 50 can turn off the cooling and heating device of the steering wheel 10 manually, the cooling and heating of the steering wheel 10 can be forcibly turned off regardless of the air conditioning device.

Next, an operation example of the present invention having such a configuration will be described with reference to FIGS. 1 and 3.

First, when the air conditioner 20 is turned ON (S101), the controller 40 determines whether the specific data D provided from the air conditioner 20 satisfies the "cooling entry condition" (S103). ).

For example, it is determined whether the "in-vehicle set temperature", "outdoor temperature", and "air discharge direction" data provided from the air conditioner 20 are 25 degrees C or less, 25 degrees C or more, and "vent mode". do.

As a result of the determination, when the "cooling entry condition" is satisfied, the control unit 40 cools the thermoelectric element 32 of the steering wheel 10 to cool the steering wheel 10 (S105).

After cooling the steering wheel 10, the controller 40 determines whether the preset time has been exceeded (S107). For example, it is determined whether it has exceeded 20 minutes.

As a result of determination, if the set time is exceeded, the controller 40 alternately converts the “electrode” applied to the thermoelectric element 32 of the steering wheel 10 to alternately cool the steering wheel 10. , Heating (S109). As a result, the steering wheel 10 is alternately cooled and heated to stimulate the driver. Thus, the driver's drowsiness is prevented.

On the other hand, in the process of cooling and heating the steering wheel 10, the control unit 40 again determines whether the specific data (D) provided from the air conditioning apparatus 20 satisfies the preset "cooling release condition" ( S111). For example, it is determined whether the "outer air temperature" data provided from the air conditioner 20 is 20 ° C or less.

As a result of the determination, when the "cooling release condition" is satisfied, the cooling and heating of the steering wheel 10 are released (S113). As a result, cooling and heating of the steering wheel 10 are automatically stopped.

On the other hand, in the step (S111), if the specific data (D) of the air conditioning apparatus 20 does not satisfy the "cooling release condition" (S111-1), the control unit 40 from the air-conditioning off switch 50 " It is determined whether the manual off signal S "is input (S115).

As a result of determination, when the "manual off signal S" is input, the cooling and heating of the steering wheel 10 are forcibly released (S113). Thus, cooling and heating of the steering wheel 10 are manually stopped.

Referring again to FIGS. 1 and 3, in step S103, when the specific data D of the air conditioning apparatus 20 does not satisfy the "cooling entry condition" (S103-1), the controller 40 In step S117, it is determined whether the specific data D of the air conditioning apparatus 20 satisfies the "heating entry condition".

For example, it is determined whether the "indoor setting temperature", "outdoor temperature", and "air discharge direction" data provided from the air conditioning apparatus 20 are 19 degrees C or more, 5 degrees C or less, and "floor mode." do.

As a result of the determination, when the "heating entry condition" is satisfied, the controller 40 heats the thermoelectric element 32 of the steering wheel 10 to heat the steering wheel 10 (S119).

After the heating control of the steering wheel 10, the controller 40 determines again whether the preset time has been exceeded (S121). For example, it is determined whether it has exceeded 20 minutes.

As a result of determination, if the set time is exceeded, the controller 40 alternately converts the “electrode” applied to the thermoelectric element 32 of the steering wheel 10 to alternately cool the steering wheel 10. , Heating (S123). As a result, the steering wheel 10 is alternately cooled and heated to stimulate the driver. Thus, the driver's drowsiness is prevented.

Meanwhile, in the process of cooling and heating the steering wheel 10, the controller 40 determines again whether the specific data D provided from the air conditioning apparatus 20 satisfies a preset "heating release condition" ( S125). For example, it is determined whether the "outer air temperature" data provided from the air conditioning apparatus 20 is 10 ° C or more.

As a result of the determination, when the "heating release condition" is satisfied, the cooling and heating of the steering wheel 10 are released (S113). As a result, cooling and heating of the steering wheel 10 are automatically stopped.

On the other hand, in the step (S125), if the specific data (D) of the air conditioning apparatus 20 does not satisfy the "heating release condition" (S125-1), the control unit 40 from the air-conditioning off switch 50 " It is determined whether the manual off signal S "is input (S127).

As a result of determination, when the "manual off signal S" is input, the cooling and heating of the steering wheel 10 are forcibly released (S113). Thus, cooling and heating of the steering wheel 10 are manually stopped.

According to the present invention having such a configuration, since the steering wheel 10 can be cooled and heated, the steering wheel 10 can be adjusted to a temperature suitable for a driver's grip regardless of the season.

In addition, regardless of the season, the steering wheel 10 can be adjusted to a temperature suitable for the driver to grip, thereby improving the driving environment of the driver.

In addition, since the cooling and heating structure of the steering wheel is connected to the air conditioning apparatus, it is possible to automatically adjust the cooling and heating of the steering wheel without a separate switch operation.

In addition, since the cooling and heating of the steering wheel is automatically controlled without a separate switch operation, the driver's convenience can be improved to the maximum.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

10: Steering Wheel 12: Boss
14: limb part 16: spoke part
20: air conditioner 22: blower
24: Evaporator 25: Heater Core
27: temperature control door 28: mode door
29: electronic control unit 30: cold, hot air generating means
32: thermoelectric element 34: heat insulating material
40: control unit 50: air conditioning off switch

Claims (9)

A vehicle having a steering wheel 10 capable of steering the vehicle and an air conditioning apparatus 10 of an automatic control method for automatically controlling the temperature and the air discharge direction of the vehicle interior according to the set temperature inside the vehicle and the temperature outside the vehicle interior. In the steering wheel air conditioning system of
Cold and warmth generating means (30) for cooling or heating the steering wheel (10) so as to cool and heat the steering wheel (10);
It characterized in that it comprises a control unit 40 for cooling or heating the steering wheel 10 by cooling or heating control the cold, hot air generating means 30 according to the specific data input from the air conditioner 20 Air conditioning system of the steering wheel of the vehicle. The method of claim 1,
The control unit (40)
Cooling the steering wheel by cooling the cold / hot generating means 30 when the specific data input from the air conditioner 20 satisfies a preset cooling entry condition;
When the specific data input from the air conditioner 20 satisfies a preset heating entry condition, the cold and warm air generating means 30 is controlled to generate heat to heat the steering wheel 10. Air conditioning unit for steering wheel. The method of claim 2,
The control unit (40)
After controlling the steering wheel 10 in one of cooling and heating modes, if the preset time is exceeded, the steering wheel 10 may be alternately cooled and heated at a predetermined time interval. Steering wheel cooling and heating apparatus for a vehicle, characterized in that for controlling the cooling and warmth generating means (30). The method of claim 2,
The specific data of the air conditioner 20 input to the controller 40 is a vehicle interior set temperature, outside air temperature, and air discharge direction;
Cooling entry conditions built into the control unit 40 are when the interior set temperature is 25 ℃ or less, the outside temperature is 25 ℃ or more, the air discharge direction is the vent mode of the face side of the passenger;
The heating entry condition built into the control unit 40 is when the interior set temperature is 19 ° C. or higher, the outside temperature is 5 ° C. or lower, and the air discharge direction is a floor mode in which the leg side of the passenger is a part. Air conditioning system for steering wheel. The method according to any one of claims 2 to 4,
The control unit (40)
During the cooling and heating of the steering wheel 10, cooling and heating of the steering wheel 10 may be performed when specific data input from the air conditioning apparatus 20 satisfies a pre-built cooling release condition or heating release condition. Steering wheel cooling and heating device of a vehicle, characterized in that for controlling the cooling, hot air generating means (30) to be released. 6. The method of claim 5,
The control unit (40)
The vehicle characterized in that the cooling and heating of the steering wheel 10 is released when the outside air temperature is satisfied among the predetermined data input from the air conditioner 20, when the outside air temperature or pre-heating air temperature outside the built-in air conditioner is satisfied. Air conditioning unit for steering wheel. The method according to claim 6,
The cooling release outside air temperature built in the control unit 40 is set to be lower by a specific temperature value than the outside air temperature condition at the time of cooling entry set for cooling entry of the steering wheel 10;
The heating releasing outside air temperature built in the controller 40 is set to be higher by a specific temperature value than the outside air temperature condition at the time of heating entry for the heating entry of the steering wheel 10. Device. 4. The method according to any one of claims 1 to 3,
Steering wheel cooling and heating apparatus for a vehicle, characterized in that it further comprises a cooling and heating off switch (50) for manually turning off the cooling, heating of the steering wheel (10). The method of claim 1,
The cold and warmth generating means 30,
Steering wheel cooling and heating device of a vehicle, characterized in that the plurality of thermoelectric elements (32) embedded in the rim portion (14) of the steering wheel (10).

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