KR101584649B1 - Hood insulation and washer apparatus using the same for vehicle - Google Patents

Abstract

Provided are a hood insulation and a washer apparatus for a vehicle using the same, capable of pre-heating a washer liquid by using heat inevitably radiated to the interior of an engine room as an engine is driven to thus prevent the washer liquid from being frozen in the winter even without a separate power source, and allowing a driver to wipe vehicle glass clean due to prevention of freezing of the washer liquid to thus safely drive a vehicle. Moreover, provided are a hood insulation and a washer apparatus for a vehicle using the same, in which a pre-heating tube is configured in the hood insulation and a washer liquid is supplied to a washer nozzle through the pre-heating tube so as to be jetted, whereby a washer liquid can be pre-heated, while minimizing additional components required for pre-heating, by using the hood insulation installed in a hood to perform an insulating operation as well as absorb and exclude sound, thus further enhancing safety performance. In addition, provided is a hood insulation and a washer apparatus for a vehicle using the same, capable of pre-heating a washer liquid through a pre-heating tube only in the winter to use the washer liquid, and providing the washer liquid directly to a washer nozzle without passing through the pre-heating tube, thus shortening a supply line of the washer liquid in other seasons to perform a stable wiping operation, as well as preventing freezing of the washer liquid in the winter.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hood insulation,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hood insulation and a vehicle washer apparatus using the hood insulation. More particularly, the present invention relates to a hood insulation, The washer fluid is preheated by using waste heat to improve the thermal efficiency and clean the front glass irrespective of the season so that safe operation can be achieved.

In general, the vehicle is equipped with various safeguards in order to secure the driving visibility of the driver. Among them, the wiper that wipes the vehicle glass removes rainwater, snow, and foreign matter to secure the front view of the driver. Further, the wiper uses a washer fluid so that foreign matter can be removed more cleanly when the foreign material of the windshield is removed. As in Patent Documents 1 to 3, a washer device capable of spraying a washer liquid onto the front glass is mounted.

1, a wiper for cleaning the windshield, a driving motor for operating the wiper, and a washer liquid sprayed on the front glass are installed on one side and the other side of the lower end of the front glass of the vehicle, A washer liquid tank and a washer liquid injection driving motor for delivering the washer liquid in the washer liquid tank, wherein a support member (30) is integrally formed on a lower surface (27) of the washer liquid tank (26) The support member 30 has a rod portion 32 integrally fixed to the lower surface 27 of the washer liquid tank at a lower end portion thereof and a lower portion 32 formed integrally with the upper end of the rod portion 32, And a first contact point 34 connected to a driving motor for actuating the washer fluid tank 26 is integrally attached to the rod member 31. The rod member 31 of the support member 30 is provided with a washer fluid Based on the flow rate of The lifting body 36 is formed of a material having a specific gravity lower than that of the washer fluid. The upper surface of the lifting body 36 can be attached to the first contact 34, And the second contact point 38 connected thereto is integrally attached. When the washer liquid is exhausted, the operation of the wiper is interrupted to protect the wiper.

In Patent Document 2, a washer fluid is filled in the inside, an injection port for injecting the washer fluid is formed in the upper portion, a discharge hole for discharging the washer fluid is formed in a lower portion thereof, Tank; An anti-vibration member formed in a semicircular shape and coupled to a flange for fixing the pump of the washer tank; A suction pipe is inserted into the discharge hole of the washer tank, and a washer fluid pump (not shown) is mounted on the pump fixing flange of the washer tank to which the anti-vibration member is coupled, ; And a nozzle for spraying the washer fluid discharged by the pumping action of the washer fluid pump to the glass side of the automobile.

Patent Document 3 discloses a washer injection apparatus for an automobile in which the direction of injection of the washer fluid can be easily controlled. A washer hose coupling part connected to the washer hose to which the washer cleaning fluid is supplied is formed and a jet port through which the supplied washer cleaning fluid is jetted is formed at the lower part of the automobile, A washer nozzle having a rotation axis rotatably fixed to the nozzle housing and a rotation adjusting screw fastened to the nozzle housing and having an end connected to the nozzle housing, So that the jetting direction of the jetting port can be adjusted.

However, these conventional washer devices have the following problems.

(1) The washer fluid is generally used so as not to freeze in accordance with the surrounding environment in which the vehicle travels. However, when the washer fluid can not be replenished, tap water may be used as a temporary measure.

(2) When tap water is used like this, tap water should be replaced with washer solution, but it is often used only when it is forgotten to replace it. This causes freezing of the washer liquid as it is diluted in winter so that the front glass can not be wiped cleanly.

(3) Especially in the case where a foreign substance is attached to the windshield, if the washer liquid is frozen and the foreign substance is not removed well, the front view of the driver may be blocked, leading to a traffic accident.

(4) If the washer fluid is forcibly operated in a frozen state of the washer fluid, the washer fluid may not be sprayed and the washer pump may fail.

(5) And, when the wiper is operated while the foreign matter is not removed well, the glass surface may be scratched or broken by the wiper.

Korean Registered Patent No. 0145376 (Registered on Apr. 28, 1998) Korean Patent Publication No. 10-2003-0033166 (published on 2003.05.01) Korean Patent No. 0823838 (Registered on Apr. 14, 2008)

The present invention has been made in consideration of this point, and it is possible to preheat the washer fluid by using the heat radiated from the engine inevitably by driving the engine, so that the washer fluid can be prevented from freezing in winter without a separate power source And more particularly, to provide a hood insulation which can be wiped cleanly when the vehicle glass is desired by freeze prevention of the washer fluid, and to provide a vehicle washer device using the same.

Particularly, in the present invention, the preheating tube is constituted in the hood insulation, and the washer liquid is supplied to the washer nozzle through the preheating tube so that the washer fluid can be injected, so that the hood insulation mounted on the hood It is an object of the present invention to provide a hood insulation and a vehicle washer apparatus using the hood insulation, in which the washer fluid can be preheated while minimizing the additional construction required for the hood insulation.

In the present invention, the washer fluid is preheated through the preheating tube only during the winter season and the washer fluid is provided by the washer nozzle immediately without passing through the preheating tube in other seasons. In addition, the washer fluid is prevented from freezing in winter Another object of the present invention is to provide a hood insulation and a vehicle washer device using the same, which can ensure a stable wiping operation by configuring the supply line of the washer fluid to be as short as possible in other seasons.

To achieve the above object, the present invention provides a hood insulation for a vehicle, comprising: a hood insulation mounted on an inner surface of a vehicle hood, the hood insulation including a preheating tube for guiding a washer fluid to be pushed in the washer fluid tank .

Particularly, the preheating tube 11 is insert-molded when the hood insulation 10 is molded.

In the meantime, the vehicle washer apparatus using the hood insulation according to the present invention is characterized in that the washer nozzle (40) and the preheating tube (11) are connected to supply the washer fluid. A washer apparatus comprising: a washer liquid tank (20) having a washer pump (21) for feeding a washer liquid by pressure; A three-way valve (21 ') for selectively branching the washer fluid which is fed by the washer pump (21); A first connection pipe (30) for preventing freezing from being connected to either one of the ports of the three-way valve (21 ') and the preheating tube (11) of the hood insulation (10); And a second connection pipe (50) for feeding the remaining ports of the three-way valve (21 ') and the washer nozzle (40) directly without passing through the hood insulation (10).

Finally, the three-way valve 21 'is characterized in that when the washer fluid needs to be preheated, the washer fluid is selectively passed through the preheat tube 11 to preheat.

The hood insulation according to the present invention and the vehicle washer apparatus using the hood insulation have the following effects.

(1) Since the washer fluid can be preheated at the time when the washer fluid can freeze as in the winter, it is possible to prevent safety accidents caused by freezing the washer fluid.

(2) Particularly, since the heat source used for preheating the washer fluid is generated by engine driving and uses heat generated by cutting off heat emitted from the engine in the hood insulation, the washer fluid can be preheated without a separate heat source, Heat can be utilized and the thermal efficiency can be increased.

(3) The hood is usually equipped with a hood insulation to obtain a sound absorption and sound insulation effect. In this hood insulation, the washer liquid can be preheated by the heat blocked by the insulation by a simple constitution of the preheating tube.

(4) The additional constitution necessary for preheating the washer fluid can be minimized, but it is possible to obtain a great benefit in safety driving by securing the running visual field due to such preheating. Moreover, since the washer liquid does not freeze, breakage phenomenon such as breakdown of the washer apparatus and scratching of the glass occurring in winter can be eliminated.

(5) In addition, when the hood insulation is manufactured, the preheating tube is inserted in advance to integrally mold the insert, so that the hood insulation according to the present invention can be easily manufactured, and the existing manufacturing equipment can be utilized as it is, .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a representative drawing of a patent document 1 schematically showing a vehicle for showing a structure of a conventional washer apparatus. Fig.
FIG. 2 is a front view for showing a structure of a hood insulation according to the present invention. FIG.
3 is a sectional view taken along the line "AA" in Fig. 2 to show the structure of the hood insulation according to the present invention.
4 is a schematic view showing an overall configuration of a washer device for a vehicle according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should properly define the concept of the term to describe its invention in the best possible way The present invention should be construed in accordance with the spirit and scope of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Thus, various equivalents And variations may be present.

(Hood Insulation )

As shown in Figs. 2 and 3, the automotive hood insulation 10 according to the present invention is manufactured by a conventional technique and is mounted inside the hood of the vehicle. The automotive engine hood insulation 10 includes a preheating tube 11 therein, Is passed through the preheating tube (11) to preheat and then sprayed through the washer nozzle, so that the washer liquid can be prevented from freezing even during the winter.

Hereinafter, this configuration will be described in more detail as follows.

As shown in Figs. 2 and 3, the hood insulation 10 is an insulation that is mounted on the inner surface of a hood (not shown) mounted on the engine compartment of the vehicle so as to be opened and closed. Particularly, in the present invention, the hood insulation 10 further includes a preheating tube 11 therein.

Here, the preheating tube 11 may be of any type as long as it can be brought into contact with the hood insulation 10 to effect heat exchange.

In the preferred embodiment of the present invention, the preheating tube 11 is configured to be bent in a continuous "S " shape inside the hood insulation 10 so that it can be configured as long as possible so that the washer fluid remains in the hood insulation 10 So that the preheating effect can be enhanced. In addition, the preheating tube 11 may be bent several times according to the shape of the hood insulation 10 so as to be arranged in various forms.

Also, in a preferred embodiment of the present invention, the preheating tube 11 may be configured to complete the hood insulation, and then to form a mounting groove on one side thereof to insert the preheating tube 11. However, most preferably, when the hood insulation 10 is molded, the hood insulation 10 according to the present invention can be easily and mass-produced by integrally forming the preheat tube 11 by inserting it as an insert It is preferable that the hood insulation 10 and the preheating tube 11 can be integrally formed.

The hood insulation 10 according to the present invention has the same sound absorption and sound insulation performance as ordinary insulation, and the heat generated in the engine is transmitted to the hood insulation 10 in particular. Thus, the present invention is capable of preheating the washer fluid passing through the preheating tube 11 by using this heat.

(Vehicle use Washer  Device)

As shown in Fig. 4, the washer apparatus according to the present invention is constructed so that the washer fluid is not frozen in winter by using the hood insulation 10 described above. The washer device for this purpose comprises a washer liquid tank 20, a three-way valve 21 ', a first connection pipe 30 and a second connection pipe 50.

Here, since the structure of the hood insulation 10 has already been described above, its detailed structure is omitted. In addition, the washer fluid pumped by the washer liquid tank 20 is finally sprayed onto the vehicle glass through the washer nozzle 40. Here, the washer nozzle 40 also uses ordinary nozzles. It is omitted.

The washer fluid tank 20 is a tank for storing the washer fluid required for the wiping operation of the vehicle, as shown in Fig. This washer liquid tank 20 is manufactured using a conventional technique, and is equipped with a washer pump 21 for feeding the washer liquid.

The washer pump 21 may be mounted inside the washer fluid tank 20 or separated from the washer fluid tank 20. In the figure, the washer pump 21 and the washer fluid tank 20 are separated from each other.

The three-way valve 21 'is a conventional three-way valve for selectively branching the washer fluid sent out from the washer pump 21, as shown in Fig. The three-way valve 21 'divides the washer fluid pumped by the washer pump 21 into any one of a first connection pipe 30 and a second connection pipe 50 to be described later.

In the preferred embodiment of the present invention, it is preferable that the three-way valve 21 'employs a solenoid valve type that operates according to whether power is supplied or not using an electromagnet or the like. This is to allow the driver to easily adjust the discharge direction of the washer fluid through the three-way valve 21 '.

The first connection pipe 30 is a connection pipe connecting one port of the three-way valve 21 'and the preheating tube 11 formed inside the hood insulation 10 as shown in FIG. The first connection pipe (30) is for allowing the washer fluid pumped by the washer pump (21) to pass through the preheating tube (11) to be preheated.

As shown in FIG. 4, the second connection pipe 40 is a connection pipe for connecting the remaining port of the three-way valve 21 'to the washer nozzle 40 so as to supply the washer fluid directly. At this time, the second connection pipe 40 can pressurize the washer liquid directly to the washer nozzle 40 without passing through the hood insulation 10, so that the washer liquid can be sprayed from the washer nozzle 40 without being preheated .

In the washer fluid of the present invention, the washer fluid supplied by the washer pump 21 is supplied to the preheating tube 11 through the three-way valve 21 'during the winter when the washer fluid can freeze, The washer fluid fed by the washer pump 21 is supplied to the washer nozzle 40 in a state in which the washer fluid is not preheated through the three-way valve 21 '.

Therefore, the present invention can prevent the washer fluid from freezing, thereby preventing safety accidents and breakage of the vehicle glass and the washer device in advance.

10: Hood insulation
11: Preheating tube
20: Washer liquid tank
21: Washer pump
21 ': Three-way valve
30: first connector
40: Washer nozzle
50: second connector

Claims (4)

delete delete A hood insulation 10 for inserting a preheating tube 11 for guiding a washer liquid to be pumped in a washer liquid tank 20 and mounted on the inner surface of the vehicle hood is used and the preheating tube 11 is connected to a washer nozzle 40 ) For supplying a washer fluid,
A washer fluid tank 20 having a washer pump 21 for pressurizing the washer fluid;
A three-way valve (21 ') for selectively branching the washer fluid which is fed by the washer pump (21);
A first connection pipe (30) for preventing freezing from being connected to either one of the ports of the three-way valve (21 ') and the preheating tube (11) of the hood insulation (10); And
And a second connection pipe (50) for feeding the remaining ports of the three-way valve (21 ') and the washer nozzle (40) directly without passing through the hood insulation (10) Washer device.
The method of claim 3,
Wherein the three-way valve (21 ') preheats the washer fluid through the preheat tube (11) when the washer fluid needs to be preheated.

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