JP2010089630A - Heating device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem wherein a sufficient heating effect is not obtained during cold, etc. since sufficient radiation heat to a human body is not obtained because a distance from the human body is not short in a conventional constitution. <P>SOLUTION: A column lower heating body 3 is mounted in a lower part of a column 2 of a steering 1 of a vehicle, and the column lower heating body 3 is heated by a control means 4. Since the column lower heating body 3 includes a short distance from the knees, the radiation heat is efficiently radiated to the human body. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle heating device that warms a passenger in a passenger compartment.

Conventionally, as shown in FIG. 7, this type of vehicle heating device has a surface of an interior member at a portion facing a lower leg portion from a passenger's knee of a driver's seat below a vehicle instrument panel 1 as an interior member in a vehicle interior. A planar electric heater 2 is disposed along the surface of the electric heater 2 and radiant heat is radiated from the surface to the human body due to heat generated by the electric heater 2 (see, for example, Patent Document 1).
JP 2005-212556 A

  However, in the above-described conventional configuration, the distance from the human body is not close and sufficient radiant heat to the human body cannot be obtained. For this reason, there existed a subject that sufficient heating effect was not acquired at the time of cold.

  The present invention has been made in view of the above situation, and an object of the present invention is to provide a vehicle heating device that can efficiently radiate radiant heat to the human body and increase the heating effect.

  In order to solve the above-described conventional problems, a vehicle heating apparatus according to the present invention is provided under a steering column of a vehicle and is intended to warm a knee of a human body, a column under heating element, By providing the control means for controlling the heat generating operation of the heat generating body, a larger heating effect can be obtained by effectively radiating radiant heat from under the steering column which is close to the knee of the human body.

  Since the vehicle heating device of the present invention effectively radiates radiant heat from under the steering column that is close to the knee of the human body, a larger heating effect can be obtained.

  According to a first aspect of the present invention, there is provided an under-column heating element disposed under a steering column of a vehicle for the purpose of heating a knee portion of a human body, and a control means for controlling a heating operation of the under-column heating element. Yes. As a result, the distance from the knee is short, and the radiant heat can be effectively radiated to the human body. In addition, when wearing trousers, since the trousers are in contact with the knee, the radiant heat to the trousers is easily transmitted to the knee by heat conduction, and a feeling of heating is easily obtained.

  According to a second aspect of the present invention, there is provided a heating element for a steering wheel that is disposed on a steering wheel of a vehicle and is intended to warm a hand portion of a human body, and the control means includes a heating element under a column, the heating element for the steering wheel, Control the heat generation operation. This makes it possible to control two heating elements with one control means. In addition, it is possible to supply power to two heating elements with one power supply line.

  In the third invention, the control means is disposed in the column. Conventionally, the control means for the heating element for the steering wheel has been arranged in the center cover of the steering wheel and coexists with the structure such as the combination SW. By doing so, a sufficient space can be secured, the degree of freedom of the shape of the control means is increased, and rationalization is possible.

  The fourth invention is characterized in that the heat generating means controls the amount of heat generated by each of the under-column heating element and the steering wheel heating element in a predetermined pattern. Thus, for example, with the overall heat generation amount constant, after turning on the power, the heat generation amount of the heating element for the steering wheel is increased to warm the hands, and the heat generation amount of the heating elements under the column after a certain time after the hands warm up It is possible to control the warming of the knees by increasing the temperature, and it is possible to sequentially heat the parts that are likely to feel the coldness of the human body, increasing comfort and maintaining the overall calorific value, ensuring energy saving it can.

  In the fifth aspect of the invention, the column lower heating element is disposed on a part of the column cover facing the knee. As a result, the heating element under the column heats the column cover, so even if the heating element is small, the entire column cover facing the knee can be heated, and a wide radiation surface for radiant heat radiated to the knee can be secured. The feeling of heating to the part increases.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is an explanatory diagram of a specific mounting location of the vehicle heating device according to the first embodiment of the present invention. Here, a column lower heating element 3 is attached to the lower part of the column 2 of the steering 1 of the vehicle. FIG. 2 shows a control method of the column-lower heating element 3. The column heating element 3 is controlled by the control means 4. The effect | action by the said structure is demonstrated below.

  The heating means 3 under the column is heated by the control means 4. Since the under-column heating element 3 is close to the knee, the radiant heat can be efficiently radiated to the human body. In addition, when wearing trousers, since the trousers are in contact with the knee, the radiant heat to the trousers is easily transmitted to the knee by heat conduction, and a feeling of heating is easily obtained.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIGS.

  FIG. 3 is an explanatory diagram of a specific mounting location of the vehicle heating device according to the second embodiment of the present invention. Here, a column lower heating element 3 is attached to the lower part of the column 2 of the steering 1 of the vehicle. A steering wheel heating element 5 is mounted on the steering wheel portion of the vehicle.

  FIG. 4 shows a control method of the column lower heating element 3 and the steering wheel heating element 5. The control means 4 controls both the under-column heating element 3 and the steering wheel heating element 5. The effect | action by the said structure is demonstrated below.

  It is possible to control the two heating elements, the column lower heating element 3 and the steering wheel heating element 4 by the control means. In addition, when supplying power to these two heating elements, it is possible to supply power to the two heating elements with a single power supply line.

  In addition, not only the two heating elements such as the steering wheel heating element and the under-column heating element but also the seat heater and the ceiling heating element may be simultaneously controlled by the control means.

(Embodiment 3)
A third embodiment of the present invention will be described with reference to FIG.

  FIG. 5 is an explanatory diagram of a specific mounting location of the vehicle heating device according to the third embodiment of the present invention. Here, a column lower heating element 3 is attached to the lower part of the column 2 of the steering 1 of the vehicle. A steering wheel heating element 5 is mounted on the steering wheel portion of the vehicle. The control means 4 is disposed inside the column 2. The effect | action by the said structure is demonstrated below.

  Conventionally, the control means for the heating element for the steering wheel has been arranged in the center cover of the steering wheel and coexists with the structure such as the combination SW. By doing so, a sufficient space can be secured, the degree of freedom of the shape of the control means is increased, and rationalization is possible.

(Embodiment 4)
A fourth embodiment of the present invention will be described with reference to FIG.

  FIG. 6 is a timing chart of the control means in the fourth embodiment of the present invention. After the power is turned on, the power supplied to the heating element for the steering wheel is increased, and the power supply to the heating element for the steering wheel is stopped after a certain period of time, and the power supply to the heating element under the column is increased.

  As a result, it is possible to sequentially heat a part of the human body that feels the cold feeling, thereby improving comfort and maintaining the entire amount of heat generated, thereby ensuring energy saving.

The timing chart of FIG. 6 is an example, and the control pattern is not limited to this.
It is also possible to reduce the power supply to the steering wheel heating element after a certain period of time without stopping. Further, the method of increasing the power supply to the heating element under the column may be increased step by step.

  Moreover, it is good also as a structure which detects the room temperature in a vehicle interior, and controls the emitted-heat amount of a heating element under a column or a heating element for steering wheels. Specifically, the amount of heat generated by the heating element under the column and the heating element for the steering wheel is reduced as the room temperature rises. At this time, the relationship between the minimum required input power and the room temperature so that the human body is thermally neutral is experimentally obtained in advance, and the control means determines whether the heating element under the column is based on the relationship between the input power and the room temperature. What is necessary is just to set it as the structure which controls the heat generating body for steering wheels.

  In addition to the two heating elements such as the steering wheel heating element and the under-column heating element, at least one of the seat heater, the ceiling heating element arranged on the ceiling, and the car air conditioner can be controlled simultaneously by the control means. Good. Specifically, for example, when the room temperature is a predetermined temperature or lower (for example, 0 ° C. or lower), the seat heater, the ceiling heating element, and the steering wheel heating element are energized while the engine is warming up immediately after the start of heating. In addition to heating the human body directly with the conduction heat between the seat heater and the heating element for the steering wheel, the head is heated with the radiant heat of the ceiling heating element to quickly warm the area where it feels cold. Part of the heat input to the heater and steering wheel heating element is used for the heating element under the column, and the knee is warmed by radiant heat to improve the overall feeling of heating. On the other hand, the car air conditioner can be heated by lowering the set temperature than in the case of heating only with warm air, and the engine exhaust heat temperature used in the car air conditioner can be kept lower, so that the fuel efficiency is improved. Further, for example, when the room temperature is in the range of 10 ° C. to 20 ° C., the car air conditioner may be turned off to heat only the seat heater, the steering wheel heating element, and the under-column heating element. Since it becomes possible to heat without using it, the fuel consumption is improved as compared with the case of using a car air conditioner. It is good also as a structure which adjusts the emitted-heat amount to each heat generating body and a seat heater according to room temperature in the above control.

  As described above, the vehicle heating apparatus of the present invention can provide a vehicle heating apparatus that can efficiently radiate radiant heat to the human body and increase the heating effect.

Explanatory drawing which shows the specific mounting place of the heating apparatus for vehicles in the 1st Embodiment of this invention. Control block diagram of heating device for vehicles in the 1st embodiment of the present invention Explanatory drawing which shows the specific mounting place of the heating apparatus for vehicles in the 2nd Embodiment of this invention. Control block diagram of the vehicle heating device in the second embodiment of the present invention Explanatory drawing which shows the specific mounting place of the heating apparatus for vehicles in the 3rd Embodiment of this invention. Timing chart of heating device for vehicle in 4th Embodiment of this invention Explanatory drawing of the specific installation place of the vehicle heating device in the prior art

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Steering 2 Column 3 Heating element under column 4 Control means 5 Heating element for steering wheels

Claims (5)

A vehicle heater comprising: a heating element under a column disposed under a steering column of a vehicle for the purpose of warming a knee portion of a human body; and a control means for controlling a heating operation of the heating element under the column. A steering wheel heating element disposed on a steering wheel of a vehicle for the purpose of warming a hand part of a human body, wherein the control means controls a heating operation of the heating element under the column and the heating element for the steering wheel. Item 2. The vehicle heater according to Item 1. The vehicle heater according to claim 2, wherein the control means is disposed in the column. 4. The vehicle heater according to claim 2, wherein the control means controls the amount of heat generated by each of the under-column heating element and the steering wheel heating element in a predetermined pattern. The vehicle heater according to any one of claims 1 to 4, wherein the column lower heating element is disposed on a part of a column cover facing the knee.

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