JPH0439049Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a defroster nozzle device that prevents a windshield wiper from freezing.

[Conventional technology]

Conventionally, as shown in FIG. 2, in order to melt the ice that accumulates on the wiper blade stop portion 11 of the windshield 2, a defroster outlet 3 is installed on the instrument panel 1 in addition to the defroster outlet 3 that clears the fog inside the windshield 2. , a warm air outlet 12 for preventing the wiper from freezing is provided, and the warm air outlet 12 is opened toward the wiper blade stop portion 11 to communicate the defroster outlet 3 with the defroster nozzle 60; An auxiliary nozzle 13 is provided at the hot air outlet 12 of the wiper blade, and this auxiliary nozzle 13 is communicated with a branch duct 15 of a defroster nozzle 60 via a bellows hose 14 to prevent the wiper blade stopping portion 11 from freezing.

In FIG. 2, numeral 16 is a heater unit, numeral 17 is a heater core, numeral 18 is a blower motor, and numeral 19 is a cowl.

[Problem that the invention attempts to solve]

However, in the case of FIG. 2, since hot air is blown out from the warm air outlet 12 for preventing the wiper from freezing, the amount of air blown out from the defroster outlet 3, which is the main outlet, is reduced.

Therefore, in order to secure the necessary air volume, a large blower motor 18 has to be used, which increases cost and weight, and also increases the size of the bellows hose 1.
4 and the auxiliary nozzle 13 are newly required, leading to an increase in costs.

Moreover, since the instrument panel 1 is provided with the warm air outlet 12 for preventing the wiper from freezing in addition to the defroster outlet 3 of the instrument panel 1, the appearance is poor.

Therefore, in order to solve such problems,
The purpose of this invention is to improve the structure of the defroster nozzle device to melt ice that accumulates on the windshield wiper blade stopping area without reducing the defroster air volume.

[Means for solving problems]

Therefore, this invention solves the above-mentioned problem by forming the windshield at the wiper blade stopping area as a part of the defroster nozzle, and configuring it so that the warm air in the defroster nozzle comes into contact with the windshield at the wiper blade stopping area. This is what we are trying to solve.

More specifically, referring to the reference numerals in FIG. 1, the instrument panel 1 is provided with a defroster outlet 3 that opens toward the windshield 2. In the defroster nozzle device in which a defroster nozzle 6 is disposed between the heater unit 4 and the heater unit 4, the defroster nozzle 6 is
A hot air inflow opening 7 communicating with the hot air supply port 5 of the heater unit 4 and the instrument panel 1
A warm air blowing opening 8 communicating with the defroster blowing opening 3 is provided, and an opening window 9 is provided in the defroster nozzle 6 between the hot air inlet opening 7 and the hot air blowing opening 8. This opening window 9 is brought into contact with the windshield 2 of the wiper blade stop portion 11, and the windshield 2 that closes the opening window 9 of the defroster nozzle 6 is formed as a part of the defroster nozzle 6. .

[Effect]

According to the above-mentioned means, the opening window 9 provided in the defroster nozzle 6 is brought into contact with the windshield 2 of the wiper blade stop portion 11, the opening window 9 is closed by the windshield 2, and the windshield 2 is connected to the defroster nozzle 6. Since the defroster nozzle 6 is formed as a part of the wiper blade stop portion 11, the warm air in the defroster nozzle 6 comes into contact with the windshield 2 of the wiper blade stop portion 11, and the ice that has adhered to the wiper blade stop portion 11 is melted.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

FIG. 1 shows an embodiment of this invention, in which an instrument panel 1 is provided with a defroster outlet 3 that opens toward a windshield 2, and a heater unit 4 is provided with a hot air supply outlet 5. is provided.

On the other hand, a defroster nozzle 6 is arranged between the instrument panel 1 and the heater unit 4. The hot air inflow opening 7 and the defroster outlet 3 of the instrument panel 1 communicate with each other.
A warm air blowing opening 8 is provided which communicates with the hot air blowing opening 8.

An opening window 9 is provided between the warm air inlet opening 7 and the warm air outlet opening 8 of the defroster nozzle 6.
The opening window 9 is brought into airtight contact with the windshield 2 surrounding the wiper blade stop portion 11 of the wiper 10 provided on the outside of the windshield 2. Since the shield 2 is formed as a part of the defroster nozzle 6, the hot air flowing into the defroster nozzle 6 from the hot air supply port 5 of the heater unit 4 and the warm air inlet opening 7 of the defroster nozzle 6 as shown by arrow A. arrow B inside the defroster nozzle 6
While heating the wiper blade stopping area 11 of the windshield 2 by bypassing the vicinity of the opening window 9 of the defroster nozzle 6 as shown in FIG. 3, the air is blown out toward the windshield 2 as shown by arrow C.

In this way, a portion of the warm air flowing from the heater unit 4 into the defroster nozzle 6 as shown by arrow A is blown out from the defroster outlet 3 of the instrument panel 1 toward the windshield 2. Remove cloudiness or ice.

At the same time, a portion of the warm air flowing from the heater unit 4 into the defroster nozzle 6 as shown by arrow A comes into contact with the windshield 2 at the wiper blade stop portion 11 of the wiper 10, and then flows into the defroster nozzle of the instrument panel 1. Since the air is blown out from the air outlet 3 toward the windshield 2, the windshield 2 at the wiper blade stop area 11 is warmed by the warm air shown by arrow B, and the wiper blade stop area 11 of the windshield 2 can be prevented from freezing. It can be done.

[Effect of idea]

As mentioned above, this idea is such that the opening window provided in the defroster nozzle is brought into contact with the windshield at the wiper blade stopping area, and the windshield is formed as a part of the defroster nozzle. Since the windshield is configured so that it is in contact with the windshield where the wiper blade stops, the windshield where the wiper blade stops is warmed without reducing the air volume from the defroster air outlet, which is the main air outlet, and the wiper blade of the windshield is heated. Freezing of the stopping area can be prevented.

Therefore, a smaller blower motor than the conventional blower motor is enough to obtain the required amount of air from the defroster outlet.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of a main part showing an embodiment of this invention, and FIG. 2 is a longitudinal sectional side view showing a conventional example. 1...Instrument panel, 2...Windshield, 3...Defroster outlet, 4...
Heater unit, 5... Warm air supply port, 6... Defroster nozzle, 7... Warm air inlet opening, 8... Warm air outlet opening, 9... Opening window, 11... Wiper blade stop site.

Claims (1)

[Scope of utility model registration request] In the defroster nozzle device, the instrument panel is provided with a defroster outlet opening toward the windshield, and the defroster nozzle is disposed between the defroster outlet of the instrument panel and the heater unit. The defroster nozzle is provided with a hot air inlet opening that communicates with the hot air supply port of the heater unit, a hot air outlet that communicates with the defroster outlet of the instrument panel, and a hot air inflow opening that communicates with the defroster outlet of the instrument panel. An opening window is provided in the defroster nozzle between the part and the warm air blowing opening, and this opening window is brought into contact with the windshield at the wiper blade stopping part, and the windshield that closes the opening window of the defroster nozzle is connected to the defroster nozzle. A defroster nozzle device formed as a part of the defroster nozzle device.