JP5195459B2 - Automotive heating system - Google Patents

Description

  The present invention relates to an interior heating device for an automobile, for example.

  Conventionally, as an interior heating device of this type of automobile, there has been an air conditioner that uses the waste heat of an engine to blow hot air into the interior of the vehicle for heating. In addition to the air conditioner, there is one in which a heater is installed inside the seat belt (see, for example, Patent Document 1).

FIG. 5 is a configuration diagram of a conventional automotive heating device described in the patent document. In this, a linear electric heater 2 and a temperature sensor 3 are arranged inside a seat belt 1 having a double structure, and the electric heater 2 and the temperature sensor 3 are arranged on the vehicle body side, such as a control means 4 such as a microcomputer. In operation, heating is performed by controlling energization to the electric heater 2 by a signal from the temperature sensor 3.
Japanese Utility Model Publication No. 62-94962

  However, the conventional automotive heating device has a problem that the width of the seat belt 1 itself is about several tens of millimeters and the entire abdomen cannot be heated. Further, if the seat belt 1 has a width sufficient for heating the abdomen, for example, a width of about 100 to 200 mm, the winding device for the seat belt 1 becomes extremely large, which is not realistic.

  Moreover, in a hybrid vehicle etc., since the engine operates intermittently, there is a problem that waste heat of the engine is small and it is difficult to obtain a sufficient heating effect with the air conditioner.

In order to solve the above-mentioned conventional problems, the automotive heating device of the present invention has a seat and a sheet-like member extending from the seat, and an electric heater is disposed on the sheet-like member to form an abdominal heater, The portion where the electric heater of the abdominal heater is arranged is made of a low stretchable fabric, and the portion where the electric heater of the abdominal heater is not arranged is made of a length adjusting portion made of a fabric knitted to be rich in elasticity. It was set as the structure provided.

  According to the automotive heating device of the present invention, since the abdomen can be efficiently heated, an energy efficient and efficient automotive heating device can be provided.

1st invention has a seat and the sheet-like member extended from the said seat, arrange | positions an electric heater in the said sheet-like member, and is set as the abdominal heater, The part by which the electric heater of the said abdominal heater is arrange | positioned expands / contracts A length adjusting portion made of a fabric knitted so as to be rich in stretchability is provided in a portion of the abdominal heater where the electric heater is not disposed, which is made of a low-strength fabric. This makes it possible to efficiently warm the entire abdomen, and because it is heated by an electric heater, it has high warmth regardless of engine warmth, and further heats the abdomen locally. A heating device can be provided. Further, by providing the length adjusting portion, it is possible to fit the abdomen even for users with different body shapes. Since the portion where the electric heater of the abdominal heater is disposed is formed of a fabric having low stretchability, the electric heater is not stressed and high reliability can be obtained.

  The second invention has control means and presence detection means, in particular, in the first invention, and when the presence detection means detects whether or not a person is seated on the seat, the control means includes an abdominal heater. As a result, it is possible to energize only when there is a pressure fluctuation when the user is seated. A high automobile heating device can be provided.

  According to a third aspect of the invention, particularly in the first or second aspect of the invention, the control means and a wearing detection means for detecting the wearing state of the seat belt of the seat are provided, and the wearing detecting means detects the wearing of the seat belt. The control means controls the energization of the electric heater. As a result, since it is possible to energize only when the seat belt is mounted, it is possible to provide a highly efficient automotive heating device that can suppress wasteful power consumption because it is not energized when not in use or is absent.

  According to a fourth aspect of the invention, in particular, in the invention according to any one of the first to third aspects, the electric heater is an electric heater having a PTC characteristic. As a result, the electric resistance is increased along with the temperature rise of the electric heater itself, so that the current is suppressed, and as a result, the temperature does not rise too much, so there is no need to install a temperature sensor, and a comfortable temperature is maintained. Therefore, a comfortable automotive heating device can be provided.

The fifth invention particularly relates to a hybrid vehicle equipped with the automotive heating device according to any one of the first to fourth aspects. In particular, even when the vehicle is running, the engine is intermittently operated and the engine is stopped. Because there is time, heating of an air conditioner that uses waste heat of the engine is not effective, but since an electric heater is used, it is possible to provide a heating device with high speed warming, which is particularly effective in a hybrid vehicle. is there.

  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)
An automotive heating device according to a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a configuration diagram of an automotive heating device according to a first embodiment of the present invention. FIG. 2 is a configuration diagram of a state in which a person is seated on the automotive heating device.

  In FIG. 1, an automotive heating device 10 according to the present invention includes a pair of abdominal right heater 13 and abdominal left heater 14 that are a pair of sheet-like members extending from the left and right of a back portion 12 of a seat (for example, a driver's seat) 11. The abdominal heater right 13 and the abdominal heater left 14 are made of a material such as cloth having a width of about several hundred mm, and a planar electric heater 15 having a PTC characteristic is disposed therein. Further, a part of the abdominal heater, for example, a part of the abdominal left heater 14 where the electric heater 15 is not arranged is composed of the length adjusting part A. Then, heat is generated by the power of a battery (not shown) arranged in the hybrid vehicle on which the seat 11 is mounted. In addition, a piezoelectric sensor 16 is arranged as a seating detection means in the approximate center of the back portion 12 of the seat 11. A micro switch 19 is disposed in the buckle 18 of the seat belt 17 as seat belt 17 wearing state detecting means.

  In the case of using the automotive heating apparatus 10 of the present invention, which will be described below, the abdominal right heater 13 and the abdominal left heater 14 that are separated from each other as shown in FIG. As shown in 2 (b), it is used by crossing it at the abdomen of the user 20 (driver or the like). When fixing, the right surface fastener 21 attached to the outside of the tip of the abdomen right heater 13 and the left surface fastener 22 attached to the inside of the tip of the abdomen left heater 14 are combined so as not to come off during heating use. The configuration is fixed.

Further, a part of the left abdomen heater 14 is a fabric A knitted so as to be rich in elasticity as a length adjusting portion.
Thus, even the user 20 having a different body shape can fit the abdomen. Moreover, the part in which the planar electric heater 15 of the abdominal part right heater 13 and the abdominal part left heater 14 is arrange | positioned consists of the fabric produced with the knitting method with low elasticity. Thereby, high reliability can be obtained without applying stress to the electric heater 15.

  Next, a heating control method using the automotive heating device 10 will be described with examples. As one example, the control means (not shown) detects that the user 20 has started heating, and when the seat belt 17 is attached, the microswitch 19 is turned on, and the piezoelectric sensor 16 When it is detected that a signal based on the weight of the user 20 or a variation signal due to load movement is output, energization of the automotive heating device 10 is started. The abdomen right heater 13 and the abdomen left heater 14 supplied with power from the battery generate heat, the surface temperature rises, and the abdomen of the user 20 can be warmed by heat conduction. As a result, the entire abdomen can be efficiently warmed, and the electric heater 15 immediately warms up with the electric power from the battery regardless of the warmth of the engine, thereby providing a heating device with high warmth.

  In addition, since the electric heater 15 having PTC characteristics is used, the electric resistance is increased as the temperature of the electric heater 15 itself rises. As a result, the current is suppressed, so that heat generation is suppressed. Even if the temperature does not rise too much, a comfortable temperature can be maintained, and a comfortable environment can be provided.

  The piezoelectric sensor 16 provided on the seat 11 causes pressure fluctuations when the user 20 is seated, and can be energized only when the seat belt 17 is worn. A highly efficient heating device that can reduce consumption can be provided. In addition, since the abdomen is locally heated, an energy saving and efficient automobile heating seat device can be provided.

  Further, as shown in FIG. 3, it may be installed not only in the driver's seat 11 but also in the passenger seat 23 and the rear seat 24. In that case, the piezoelectric sensor 16 is installed on the seating surface of each seat. Thereby, only the electric heater installed in the place with the pressure fluctuation at the time of human body seating can be energized by the piezoelectric sensor 16 provided in each seat. Therefore, since the seat where the user 20 is absent is not energized, it is possible to provide a highly efficient heating apparatus that can suppress wasteful power consumption.

  In addition, by providing the automotive heating device 10 of the present invention in the rear seat 24, it is possible to provide a heating device with high quick warming even for a person sitting in the rear seat 24 where hot air is difficult to turn.

  In addition, although the piezoelectric sensor 20 was mentioned as a specific example of a presence detection means, a micro switch may be used besides that, and an infrared sensor may be used to detect the heat of the human body. Also, the installation location may be set on the seat surface instead of the back of the seat.

  Moreover, although the example which uses cloth as a sheet-like member arrange | positioned with the electric heater 15 was shown, you may arrange | position in the film made from a plastics other than that. A rubber band may be used as the length adjusting portion A.

  Note that the electric heater 15 may be configured such that the linear heater meanders inside the abdomen right heater 13 and the abdomen left heater 14.

  The presence detection means 16 may be a micro switch in addition to the piezoelectric sensor, or may detect the heat of the human body using an infrared sensor. Further, the installation location may be the seat surface instead of the back surface of the seat 11.

  In the present embodiment, the heating is performed when the piezoelectric sensor 16 and the microswitch 19 of the seat belt 17 are detected at the same time. However, only one of the detection means may be disposed.

  In addition, the automobile heating device 10 may be operated in conjunction with the air conditioning device. In that case, it operates in conjunction with the in-vehicle air conditioner operation dial and the temperature adjustment dial of the automobile. That is, the control means energizes the automotive heating device 10 when the air conditioner operation dial is in the on state and the temperature adjustment dial is in the heating area. Therefore, since the air conditioner and the vehicle heating device 10 can be turned on and heated together, a highly convenient heating device can be provided.

(Embodiment 2)
An automotive heating device according to a second embodiment of the present invention will be described with reference to FIG. FIG. 4 is a configuration diagram of the automotive heating device according to the second embodiment of the present invention.

  The difference from the first embodiment is that the abdominal heater is only on one side (only the right side in this embodiment). The thing of the same code | symbol as Embodiment 1 shows the same operation | movement, an effect | action, an effect, and abbreviate | omits description.

  In FIG. 4, in the automotive heating device 10 of the present invention, the abdominal part heater 25 is extended only from the right side of the back part 12 of the seat 11. A part A where the electric heater 15 is not arranged is made of a highly stretchable sheet. Further, a hook-and-loop fastener 26 is disposed inside the front end of the abdominal heater 25 and is configured to be fixed by a hook-and-loop fastener 27 on the left end surface of the back portion 12 of the seat 11 so that it does not come off during heating use.

  As a result, as in the first embodiment, it is possible to provide a heating device that is quickly warmed by the electric heater 15 by the electric power from the battery regardless of the warming of the engine and has a high quick warming property.

  The abdominal heater 15 may be extended on the left side of the seat 11.

  In addition, although the example fixed with the hook_and_loop | surface fastener 27 was shown, you may fix with a button and a hook other than that, and you may fix with a buckle.

  As described above, the automotive heating device according to the present invention can provide a comfortable heating space by compensating for the slow start of the air conditioning heating of a hybrid vehicle with high energy efficiency of the system and low engine waste heat. It can also be used as a heating device for electric vehicles, which has no engine waste heat and is difficult to heat an air conditioner. Furthermore, it can be applied as a heating device for a diesel engine that suppresses engine waste heat by increasing efficiency and a high-efficiency gasoline engine automobile (for example, an automobile having an idling stop function). It can also be applied as a heating device for seats on buses, trains, ships and aircraft.

The block diagram of the heating apparatus for motor vehicles in Embodiment 1 of this invention (A) Configuration diagram in a state of being seated on the automotive heating device, (b) Configuration diagram of a seated state in the automotive heating device and in use Cross-sectional plan view of a car equipped with the same vehicle heating system The block diagram of the heating apparatus for motor vehicles in Embodiment 2 of this invention Configuration diagram of conventional automotive heating system

DESCRIPTION OF SYMBOLS 10 Heating apparatus for motor vehicles 11 Seat 13 Abdominal part right heater (abdominal part heater consisting of a sheet-like member)
14 Abdominal left heater (abdominal heater made of sheet-like member)
15 Electric heater (electric heater with PTC characteristics)
16 Piezoelectric sensor (Attendance detection means)
17 Seat belt 19 Micro switch (Seat belt wearing detection means)
25 Abdominal heater (abdominal heater made of sheet-like member)

Claims (5)

A seat and a sheet-like member extending from the seat; an electric heater is disposed on the sheet-like member to form an abdominal heater; A heating apparatus for an automobile in which a length adjusting portion made of a fabric knitted so as to be stretchable is provided in a portion where the electric heater of the abdominal heater is not disposed. 2. The automobile according to claim 1, further comprising a control unit and a seat detection unit, wherein the control unit controls energization of the abdominal heater when the presence detection unit detects whether or not a person is seated on the seat. Heating system. A control unit and a mounting detection unit that detects a seat belt mounting state of the seat, and the control unit controls energization of the electric heater when the mounting detection unit detects the seat belt mounting. The automotive heating device according to claim 1 or 2. The heating device for an automobile according to any one of claims 1 to 3, wherein the electric heater is an electric heater having PTC characteristics. A hybrid vehicle using the heating device for a vehicle according to any one of claims 1 to 4.

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