JPH0529809U - Rear seat heating system for vehicles - Google Patents

Abstract

(57) [Abstract] [Purpose] A rear heater unit, which is provided separately from the main heater unit of the vehicle, is installed below the seat cushion in the front seat, and the warm air from the rear heater unit is also used as an air duct for the front floor cross member. In order to obtain a rear seat heating device for a vehicle, which is evenly guided to the entire feet of the rear seat through the left and right ducts. [Structure] A rear heater unit 8 provided separately from a main heater unit of a vehicle includes a seat cushion 1a of a front seat 1.
Installed below, the outlet of the rear heater unit 8
A rear heater duct that is connected to a predetermined position of the front floor cross member 4 that also serves as the air duct 4a and blows warm air near the both ends of the front floor cross member 4 through the lower surfaces of the driver's seat and the passenger seat to the feet of the rear seat. 1
It is characterized in that 8 and 19 are connected.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle rear seat heating device for guiding hot air from a rear heater unit provided separately from a vehicle main heater unit to the feet of a rear seat.

[0002]

[Prior Art]

 In general, as a vehicle heating device, as shown in, for example, Japanese Utility Model Laid-Open No. 61-110414, there have been proposed a number of devices configured to guide warm air to the feet of a rear seat.

However, in the above-mentioned conventional example, a long rear heater duct is provided along the floor panel in order to guide the warm air from the main heater unit of the vehicle through the floor of the front seat to the feet of the rear seat. However, due to the flatness of the rear heater, the cross-sectional area of the rear heater duct cannot be sufficiently secured, and the air volume tends to be insufficient, and there is the problem that the heater performance deteriorates, such as the generation of abnormal noise due to the warm air passing through the duct. .

Therefore, in order to take these measures, for example, as shown in Japanese Utility Model Publication No. 64-41411, a rear heater unit is installed in the lower part of the rear seat in addition to the main heater unit. It is proposed that the warm air is guided to the feet of the seat.

[0005]

[Problems to be solved by the device]

 However, as shown in FIG. 4, the heating device according to the preceding example has a structure in which the rear heater unit 51 is installed below one side of the seat cushion 50a of the rear seat 50. The warm air is sufficiently guided to the feet of the occupants seated in the seat, but there was a problem that the warm air was not evenly distributed to the entire left and right feet of the rear seat. Further, since the suction port of the rear heater unit 51 is opened at the boundary between the seat back 50b of the rear seat 50 and the floor panel 53, the rear heater unit 51 is also used as a circulator. Even though it is suitable for a van-type vehicle equipped with a room 52, there is a problem that a normal passenger vehicle cannot take the indoor air intake at an appropriate position.

An object of the present invention is to solve the above-mentioned problems of the conventional example. A rear heater unit provided separately from a main heater unit of a vehicle is installed below a seat cushion of a front seat, An object of the present invention is to obtain a vehicle rear seat heating device in which warm air from the heater unit is evenly guided from the front floor cross member that also serves as an air duct to the entire feet of the rear seat through the left and right ducts.

[0007]

[Means for Solving the Problems]

 In order to achieve this object, according to the present invention, a rear heater unit provided separately from the main heater unit of the vehicle is installed below the seat cushion of the front seat, and the air outlet of the rear heater unit is also used as an air duct. The rear heater duct is connected to the front floor cross member at the specified position, and the rear heater duct that blows warm air to the foot of the rear seat is connected near both ends of the front floor cross member, passing through the underside of the driver's seat and the passenger seat. It is a feature.

[0008]

[Action]

 Based on such a configuration, according to the present invention, the rear heater unit provided separately from the main heater unit of the vehicle is installed below the seat cushion of the front seat, and the warm air from the rear heater unit is also used as the air duct. The hot air can be evenly guided to the feet of the occupant sitting in the rear seat by being configured to blow out from the front floor cross member through the left and right ducts to the entire feet of the rear seat.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a rear perspective view of an essential part showing an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line 2-2 of FIG. It is slidably mounted on a rail-shaped frame 5 provided in the direction. The front portion of the rail-shaped frame body 5 is fixed to a front floor cross member 4 provided below the front portion of the seat cushion 1a via a bracket 6a, and the rear portion is attached to the upper surface of the floor panel 3. It is fixed via 6b. A predetermined recess 3a is formed in the floor panel 3 on the driver's side below the front seat 1, and a rear heater unit is provided in a space 7 formed between the recess 3a and the seat cushion 1a. 8 are installed.

A blower 10 and a heater core 11 are built in the air duct 9 of the rear heater unit 8, and an inlet duct 13 having an inlet 12 is connected upstream of the air duct 9 on the blower 10 side. At the same time, the air duct 9 is provided on the downstream side of the heater core 11 side with an air outlet 14 which opens at a predetermined position of the front floor cross member 4. Further, the heater core 11 is connected with a hot water supply pipe 15 and a hot water discharge pipe 16 which are connected to a hot water circulation system (not shown). The hot water supply pipe 15 is selected to supply hot water to the heater core 11. A shutoff valve 17 that can be freely opened and closed is provided.

On the other hand, the front floor cross member 4 is fixed on the floor panel 3 located below the front portion of the seat cushion 1 a, and is attached to both end portions of the floor panel 3 and the front floor cross member 4. The duct 4a is formed by a partition plate (not shown). Further, near the both ends of the duct 4a, there are connected rear heater ducts 18 and 19 which blow the warm air through the lower surfaces of the driver's seat and the passenger's seat to the feet of the rear seat. Further, the air outlets 18a, 19a of the rear heater ducts 18, 19 are formed in a flat shape so as to blow out even warm air to the entire feet of the rear seat, and the ends of the air outlets 18a, 19a are , And is appropriately fixed on the floor panel 3 by mounting hardware or the like. There is. The connection between the air outlet 14 of the air duct 9 and the duct 4a is hermetically sealed via a seal member 20 to prevent air leakage, as shown in FIG. Further, in the embodiment of the present consideration, the case where the rear heater unit 8 is installed on the driver's side has been described, but the present invention is not limited to this, and the same effect can be obtained even if installed on the passenger's side. it can.

Next, the operation of the embodiment according to the present invention will be described. First, in winter, when the shutoff valve 17 is opened and hot water is supplied to the heater core 11 to operate the blower 10, the rear heater unit 8 functions as a normal heater, sucks the air in the vehicle compartment from the suction port 12, and simultaneously heats the heater core. While passing through 11, the hot air is blown from the outlet 14 through the duct 4a and the rear heater ducts 18 and 19 to the entire feet of the rear seat. Further, by closing the shutoff valve 17 and stopping the supply of hot water to the heater core 11, only the blower 10 is operated, and the rear heater unit 8 functions as a circulator, so that the summer time is reduced. It is possible to maintain a comfortable temperature inside the vehicle when using the air conditioner.

[0014]

[Effect of the device]

 As described in detail above, according to the vehicle rear seat heating device of the present invention, the rear heater unit provided separately from the main heater unit of the vehicle is installed below the seat cushion of the front seat, and the rear heater unit The warm air is blown from the front floor cross member, which also functions as an air duct, to the entire feet of the rear seats through the left and right ducts, so that the warm air is evenly guided to the feet of the passengers sitting in the rear seats. be able to. In addition, it is possible to smoothly circulate air in the passenger compartment, and improve the cooling effect when the air conditioner is used in the summer.

[Brief description of drawings]

FIG. 1 is a rear perspective view of an essential part showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is an enlarged sectional view showing details of a mounting portion of the hot air outlet in FIG.

FIG. 4 is a side sectional view showing a conventional vehicle heating device.

[Explanation of symbols]

 1 Front Seat 1a Seat Cushion 3 Floor Panel 4 Front Floor Cross Member 4a Air Duct 8 Rear Heater Unit 14 Outlet 18 Rear Heater Duct 19 Rear Heater Duct

Claims (1)

[Scope of utility model registration request] 1. A rear heater unit provided separately from a main heater unit of a vehicle is installed below a seat cushion of a front seat, and an outlet of the rear heater unit is provided at a predetermined position of a front floor cross member which also serves as an air duct. A rear seat heating device for a vehicle, characterized in that a rear heater duct is connected near both ends of the front floor cross member and blows warm air through the lower surfaces of the driver's seat and the passenger seat to the feet of the rear seat.