JPH0788167B2 - Vehicle heating system - Google Patents

Description

TECHNICAL FIELD The present invention relates to a heating device for a vehicle such as a train.

[Conventional technology]

FIG. 10 is a sectional view showing a conventional vehicle heating system disclosed in, for example, Japanese Utility Model Publication No. 56-45802.
Is a floor of the vehicle body, 2 is a lower seat angle, 3 is an upper seat angle, and 4 is a seat seat placed on this.

Reference numeral 5 is a riser plate having a large number of ventilation holes 5a formed on the front surface thereof, and is fixed to the front surfaces of the seat angles 2 and 3 by tension.

Reference numeral 6 is a reflector having a substantially U-shaped cross section, and the front open end thereof is arranged with a predetermined distance from the back surface of the riser plate 5.

Reference numerals 7a and 7b denote rod-shaped heating elements, such as a sheathed heater, which are held in the inner space of the reflection plate 6.

Next, the operation of the conventional vehicle heating device configured as described above will be described.

When the heating elements 7a, 7b are energized, the radiant heat reflected directly from the heating elements 7a, 7b or on the inner surface of the reflecting plate 6 is radiated forward from the ventilation hole 5a of the riser plate 5 as shown by the broken line in the figure. .
Further, as shown by the solid line in the figure, convection of hot air occurs, and hot air convects to the lower side of the seat 4 from below the riser plate 5 and from the gap between the reflection plate 6 and the riser plate 5.

[Problems to be Solved by the Invention]

Since the conventional vehicle heating device is configured as described above, it has the following problems.

Since a relatively large gap is formed between the reflection plate 6 and the riser plate 5, hot air convection is also generated on the lower side of the seat 4 to heat the seat 4 and accelerate heat deterioration of the seat 4. At the same time, the heating efficiency at the passenger's feet is low during heating.

Further, in order to solve the above problem, the riser plate 5 and the reflector plate 6 are provided.
When the gap between the riser plate and the riser plate is eliminated, the temperature rise in the upper part of the riser plate 5 is remarkable, and since this part is the position most easily touched by passengers, there is a risk of burns, etc. Will be low.

The present invention has been made to solve the above problems, and to obtain a vehicle heating device that can suppress the temperature rise in the upper part of the riser plate and can enhance the heating effect on the foot side of passengers. To aim.

[Means for Solving the Problems]

In the vehicle heating device according to the present invention, a reflection plate having a substantially U-shaped cross section is provided on the back side of a riser plate provided in the lower portion of the seat with a plurality of ventilation holes so that the front opening of the reflector plate is close to and facing the riser plate. In the vehicle heating device, in which a plurality of heating elements are arranged side by side in the vertical direction in the reflector, a partition plate is provided in the reflector to divide the installation space of the heating element into a plurality of upper and lower spaces. .

[Action]

In the vehicle heating device according to the present invention, during heating, the hot air in the reflection plate inner space divided into upper and lower parts independently flows out from the vent holes of the riser plate, so that the temperature concentration on the top of the riser plate is eliminated and the vertical direction is eliminated. Distributed in the direction. Further, the temperature of the lower part of the riser rises, and the heating effect on the passenger's feet side is enhanced.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing a vehicle heating device according to an embodiment of the present invention.

In the figure, 1 is the floor of the vehicle body, 2 is the lower seat angle, 3
Is an upper seat angle, and 4 is a seat seat placed on the upper seat angle 3. Reference numeral 5 is a riser plate formed with a large number of ventilation holes 5a, which is fixed by being stretched between the seat angles 2 and 3.

Reference numeral 6 denotes a reflector having a substantially U-shaped cross section, which is made of a steel sheet silver-painted or made of an aluminum plate, and the front opening end of which is arranged in proximity to the back side of the riser plate 5 and is a space partitioned by both. Make up.

Reference numerals 7a and 7b denote rod-shaped heating elements (not shown) made up of sheathed heaters and the like arranged side by side in the vertical direction, and are fixed in the reflecting plate 6 with a predetermined space by a support fitting.

Reference numeral 8 is a partition plate of a substantially flat plate shape which is provided by inclining the front portion higher than the rear portion so as to partition the installation space of the sheathed heaters 7a and 7b in the reflection plate 6, and the rear portion of the division plate is It is installed with a gap for convection, which will be described later.

In the vehicle heating device of the above embodiment configured as described above, when the heating elements 7a, 7b are energized, the radiant heat from the heating elements 7a, 7b is from the heating elements 7a, 7b as indicated by the broken line arrow in the figure. It is reflected directly or on the inner surface of the reflector plate 6, passes through the ventilation hole 5a of the riser plate 5, and is emitted to the passenger's feet side.

On the other hand, the convection of hot air is shown by the solid arrow in the figure.

That is, the hot air sucked from the vent holes 5 a below the riser plate 5 and heated by the heating element 7 b moves upward along the lower surface of the partition plate 8 and moves to the front in a substantially central portion of the riser plate 5. Vent
It leaks from 5a to the passenger's feet.

Further, the air having a relatively low temperature rises through the gap between the rear portion of the partition plate 8 and the inner surface of the reflection plate 6, and the hot air heated by the heating element 7a in the upper portion is a ventilation hole in the upper portion of the riser plate 5. It leaks from 5a to the passenger's feet.

In addition, a part of the hot air flows out to the lower side of the seat 4 through the gap between the tops of the riser 5 and the reflector 6, and warms the seat 4 to an appropriate temperature.

In the embodiment of FIG. 1 as described above, the following effects are obtained as compared with the conventional example.

(1) Conventionally, convection of hot air in the upper one-point concentrated type with respect to the riser plate 5 is performed in the present embodiment because the convection is divided into upper and lower parts by the partition plate 8, so that the same heating capacity is obtained. The temperature of the upper part of the riser plate 5 becomes lower than the conventional temperature, and there is no concern about burns and the like, and the safety is excellent.

(2) Due to the above reason, in the same heater length,
Larger heating capacity than before can be adopted.

(3) Since hot air flows out from the vent hole 5a in the lower part of the riser plate 5 as compared with the conventional case, a heating effect from a position closer to the vehicle body floor surface 1 is obtained, and comfort is increased.

(4) Convection of hot air to the lower side of the seat 4 can be controlled to such an extent that the seat 4 does not deteriorate and the passenger does not feel cold when sitting.

FIG. 2 is a sectional view of a vehicle heating device showing a second embodiment of the present invention.

In the figure, the partition plate 8 is provided such that the rear portion thereof is in contact with the reflection plate 6. Reference numeral 10 is an intake hole provided on the back surface of the reflector plate 6,
The partition plate 8 is formed at a position higher than the position where the rear portion of the partition plate 8 abuts.

In the above-described configuration, convection in the upper space in the reflector 6 partitioned by the partition plate 8 causes cool air to flow from the ventilation holes 10 in the rear portion of the reflector plate 6 and the hot air warmed by the heating element 7a to flow into the riser plate 5.
It is performed by flowing out to the passenger's feet side from the ventilation hole 5a.

In this second embodiment, as compared with the first embodiment, the reflection plate 6
Since the upper air convection path inside is completely independent of the lower space convection path, the heating effect becomes more remarkable.

In particular, when it is installed near the door of a commuter car or the like, when the wind is received from the front of the riser plate 5, in the first embodiment, the hot air warmed by the lower heating element 7b flows back to the rear of the partition plate 8. There was a concern that the heating capacity would flow into the upper part through the gap between the inner surface of the reflector and the inner surface of the reflection plate 6, and the balance of the heating capacity would be lost, but this can be solved.

FIG. 3 is a sectional view of a vehicle heating system showing a third embodiment according to the present invention.

Reference numeral 11 denotes an air intake guide located at the upper opening edge of the vent hole 10 and cut and raised on the back surface of the reflection plate 6.

In this embodiment, as in the second embodiment, air is sucked into the upper space in the reflector 6 through the air intake hole 10.

At this time, the air warmed by the reflection plate 6 rises along the outer surface and the back surface of the lower side of the reflection plate 6 as shown by the arrow in the figure, so that the intake hole is larger than in the case of the second embodiment. Better intake to.

FIG. 4 is a sectional view showing a vehicle heating device of a fourth embodiment according to the present invention.

In the figure, reference numeral 12 is an intake introduction plate fixed to the upper end of the intake hole 10 and having a substantially U-shaped cross section.

The intake air introduction plate 12 of this embodiment allows the intake air that rises along the back surface of the reflection plate 6 to smoothly flow into the intake hole 10, and has the same effect as the intake guide 11 of the third embodiment. Play.

FIG. 5 is a sectional view showing a vehicle heating device of a fifth embodiment according to the present invention.

In the figure, 13 is an air intake hole provided on the lower side of the reflection plate 6 having a substantially U-shaped cross section, and 14 is a rear part of the partition plate 8 from the heating elements 7a and 7b, and is formed at a position close to the inner surface of the reflection plate 6. It is a vent.

As for the convection in the heating apparatus of this embodiment, as shown by the arrow in the figure, cold air flows in through the vent hole 5a in the lower part of the riser plate 5 and is sucked into the reflector plate 6 through the intake hole 13 in the lower side portion of the reflector plate 6. .
At the lower part of the partition plate 8, the hot air loosened by the heating element 7b moves forward along the lower surface of the partition plate 8 and flows out through the ventilation hole 5a near the center of the riser plate 5 to the indoor side.

On the other hand, in the upper part of the reflection plate 6, the hot air that has flowed in through the ventilation holes 14 of the partition plate 8 and has been warmed by the heating element 7a is added to the riser plate 5.
Flows into the room through the ventilation hole 5a above.

This embodiment is effective when an intake hole cannot be formed on the back surface of the reflector 6, such as when a device is provided at the rear of the reflector 6.

Further, the air of low temperature on the floor surface 1 of the vehicle body can be sucked in through the air intake holes 13 at the lower side of the reflecting plate 6, and as a result, the riser plate 5
It is possible to suppress the temperature rise in the upper part of the table to a low level.

FIG. 6 is a sectional view showing a vehicle heating system of the embodiment of FIG. 6 according to the present invention.

In this embodiment, a partition plate 8 for partitioning between the heating elements 7a and 7b
Has a substantially V-shaped cross section and has a hanging side 15 at the rear end. The depending side 15 is opposed to the inner surface of the reflection plate 6 with a predetermined distance.

Convection by the heating device of this embodiment is taken in through the intake holes 13 in the lower side of the reflector 6 as shown by the arrow in the figure, and passes above the reflector 6 through the rear part of the hanging side 15 of the partition plate 8. Heating element 7a
Flows to.

In this embodiment, the air heated by the lower heating element 7b by the hanging side 15 of the partition plate 8 is different from that of the fifth embodiment even in the wind from the front of the riser plate 5. There is little backflow to the upper part, and as a result, there is an effect that the temperature of the riser plate 5 does not fluctuate.

Further, in FIG. 6, if the hanging side 15 of the partition plate 8 is configured to extend below the lower heating element 7b as shown by a broken line, this effect becomes more remarkable.

FIG. 7 shows a sectional view of a vehicle heating device according to a seventh embodiment of the present invention. In this embodiment, as in the embodiment of FIG. 6, a partition plate 8 having a substantially V-shaped cross section with a depending side 15 is formed.
The reflecting plate 6 has an intake hole 10 at a position behind the drooping side 15 which does not directly receive radiant heat from the heating elements 7a, 7b.
Is provided.

This embodiment is effective when the influence of the radiant heat passing through the intake hole 10 is large, such as when a thermally weak device is close to the rear portion of the reflector 6.

FIG. 8 shows a sectional view of a vehicle heating device according to an eighth embodiment of the present invention. In this embodiment, the rear part of the partition plate 8 is curved downward.

The surface of the partition plate 8 is made of a material having a high heat reflectivity, such as an aluminum plate, so that the radiant heat radiated from the lower heating element 7b is reflected toward the lower side of the riser plate 5 as indicated by the broken line arrow. It was done.

In the case of this embodiment, the partition plate 8 also functions as a reflection plate, and in combination with a good convection result, the heating effect on the foot side of the passenger can be enhanced.

FIG. 9 shows a sectional view of a vehicle heating device according to a ninth embodiment of the present invention.

In the figure, 13 is an intake hole formed in the lower side of the reflector plate 6,
Reference numerals 7a, 7b and 7c denote rod-shaped heating elements, and 8 a partition plate for partitioning the heating elements, the rear end of which is in contact with the inner surface of the reflection plate 6.

Reference numeral 10 denotes an intake hole provided on the back surface of the reflection plate 6, and 11 an intake guide provided at the upper opening edge of the uppermost intake hole 10.

In this embodiment, hot air is dispersed in three stages from the ventilation holes 5a of the riser plate 5 by forming independent counter flow passages in three stages in the vertical direction and flows out to the indoor side. According to this example,
A more uniform hot air convection is obtained from the vertical direction of the riser plate 5, the temperature of the riser plate 5 is further averaged, and the maximum temperature can be set low.

Therefore, a large capacity heating device can be obtained, which is safe and comfortable for passengers.

As in this embodiment, in the present invention, if the number of heating elements and the partition plates 8 for partitioning them are increased, and the intake holes 13 and 10 from the lower side and the back surface of the reflection plate 6 are appropriately set, the invention can be easily performed. Three
It is possible to change the structure to more than a step.

Next, the temperature and heating capacity of the riser plate 5 will be described with reference to an example of the present invention.

The maximum temperature of the riser plate 5 needs to be 80 ° C or lower so that passengers do not get burned when touched.

In the example of FIG. 6, in the actual machine test results, when the length of the effective heating portion of the heating device is set to about 70 cm, the lower heating element 7b
When the total heating capacity is 450W and the capacity of the upper heating element 7a is 250W, totaling 700W, the upper part of the riser plate 5 and the corresponding position in front of the partition plate 8 are about 80W.
It was ℃. The temperature of the riser plate 5 is below the temperature at which safety is not impaired, and ideally a temperature as uniform as possible. Further, since the bottom surface 1 of the vehicle body has the lowest temperature, it is better to give priority to heating from the lower side.

From this point of view, in the present invention in which the heating elements 7a and 7b are vertically divided by the partition plate 8, the power consumption of the lower heating element 7b is set to be large and the power consumption of the upper heating element 7a is set to the minimum required power consumption. Set to power.

That is, in the embodiment divided into three stages in FIG. 9,
It is desirable that the relationship of power consumption be set so that the heating elements are in the order of 7c>7b> 7a.

〔The invention's effect〕

As described above, according to the present invention, a reflecting plate having a substantially U-shaped cross section is provided on the back side of a riser plate provided in the lower portion of the seat with a plurality of vent holes so that the front opening of the reflector plate closely faces the riser plate. In the vehicle heating device, in which a plurality of heating elements are arranged side by side in the vertical direction in the reflector, a partition plate is provided in the reflector to divide the installation space of the heating element into a plurality of upper and lower spaces. Therefore, independent heat pair flow paths are formed for each heating element in the reflector,
Since hot air is dispersed and flows out from the vent holes of the riser plate, the temperature of the riser plate can be vertically dispersed to eliminate the extreme rise in temperature at the top of the riser plate, eliminating the risk of burns. This has the effect of further enhancing the heating effect on the passenger's feet. Further, the larger the capacity of the heating device, the greater the effect.

[Brief description of drawings]

FIG. 1 is a sectional view of a vehicle heating apparatus according to a first embodiment of the present invention, FIGS. 2 to 9 are sectional views showing another embodiment of the present invention, and FIG. It is sectional drawing which shows a heating device. In the figure, 4 is a seat, 5 is a riser, 5a is a vent, 6 is a reflector, 7a, 7b and 7c are heating elements, 8 is a partition plate, 10 is an intake hole, 11 is a cut and raised portion, 12 Is an intake introduction plate, 13 is an intake hole,
14 is a vent, and 15 is a drooping side. The same reference numerals in the drawings indicate the same or corresponding parts.

Front Page Continuation (72) Inventor Shiro Kazama 800 Iwamatsu, Oshima-cho, Nitta-gun, Gunma Sanryo Electric Co., Ltd. Gunma Manufacturing Co., Ltd. (56) Bibliography Sho 54-10662 (JP, Y2)

Claims (8)

[Claims] 1. A reflection plate having a substantially U-shaped cross section is provided on the back side of a riser plate having a large number of ventilation holes provided in the lower part of the seat so that its front opening portion faces the riser plate in close proximity to the riser plate. In a vehicle heating device in which a plurality of heating elements are arranged side by side in the vertical direction in the reflecting plate, a vehicle is characterized in that a partition plate that divides the installation space of the heating elements into a plurality of upper and lower parts is provided in the reflecting plate. Heating system. 2. A rear portion of the partition plate is brought into contact with an inner wall surface of the reflection plate, and an intake hole is provided in the reflection plate above the contact portion. 1)
The vehicle heating device according to the item. 3. The vehicle heating apparatus according to claim 2, wherein an intake guide made of a cut-and-raised piece is integrally provided at an upper opening edge of the intake hole. 4. The air intake hole is provided in the lower side of the reflection plate, and the ventilation hole is provided in the partition plate rearward of the heating element. Vehicle heating system. 5. An air intake hole is provided at a lower side portion of the reflector, and a hanging side is provided at a rear portion of the partition plate, and the hanging side is opposed to an inner surface of the reflector with a predetermined distance. The vehicle heating system according to claim 1. 6. The intake hole is provided in the reflecting plate at a position facing the hanging side of the partition plate and not directly receiving radiant heat from a heating element. Vehicle heating system. 7. The vehicle heating apparatus according to claim 1, wherein an intake hole is provided in a lower side portion of the reflection plate, and a rear portion of the partition plate is curved downward. 8. The heating device for a vehicle according to claim 1, wherein the heating element of the upper heating element is set to have lower power consumption than the heating element of the lower heating element.