KR20160044729A - Washer nozzle for vehicle - Google Patents

Abstract

The present invention relates to a washer fluid injection device for a vehicle, wherein a heating member is embedded inside. The present invention provides a washer fluid injection device for a vehicle, capable of improving efficiency of heat transmission of the heating member by limiting movement to assemble the heating member inside a washer nozzle. According to the present invention, the washer fluid injection device includes: a nozzle cover including an injection port; a nozzle body including a washer fluid path; and a block body arranged to be parallel to the nozzle body on the front bottom of the nozzle cover. The heating member generating heat when power is supplied is inserted into the block body, and an installation space is formed, wherein a thermal-conductive fluid transmitting the heat of the heating member to the periphery of the injection port is injected into the installation space. A position fixing member for limiting the movement of the heating member inserted into the installation space is installed in the installation space.

Description

[0001] Washer nozzle for vehicle [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a washer fluid injection device for an automobile having a built-in heating member, and more particularly to an automobile washer fluid injection device for improving the heat transfer efficiency of a heating member inside a washer nozzle.

Generally, a washer nozzle is a means for securing the front view of a driver by spraying a washer liquid onto a front glass of an automobile to remove foreign materials adhered to the front glass.

Such a washer nozzle has a function of spraying an appropriate amount of a washer liquid over a wide area on the front glass in a short time, in which a 2-way method and a 3-way method are applied.

Usually, the washer nozzle includes a suction port to which a tube extending from the washer fluid pump side is connected, a washer fluid passage to guide the flow of the washer fluid flowing upward through the suction port, a discharge port for finally spraying the washer fluid through the washer fluid passage A nozzle body, and a nozzle cover for fixing the nozzle body.

Accordingly, the washer fluid supplied from the washer fluid pump is sprayed to the front glass through the washer nozzle, and at the same time, the wiper blade is driven to wipe the foreign substances adhering to the front glass, thereby securing the forward view.

On the other hand, when the washer nozzle is used in a cold or cold winter season, the washer fluid remaining in the washer nozzle is frozen, and the washer fluid spraying failure is often caused, which makes it difficult to clean the windshield.

In recent years, there have been proposals for products that apply a heating element and a thermal conductor to a spray nozzle as means for securing a smooth clock during running through a smooth front glass cleaning in the winter season. European Patent No. 123103, Japanese Patent Laid- -236283 and Japanese Patent Laid-Open No. 1993-088648 disclose a spray nozzle to which a heating element and a thermal conductor are applied.

For example, referring to FIG. 6, in the case of a heated washer nozzle using the conventional 3-way method, the freezing of the nozzle discharge port 2 is removed by heat transfer of the heating element 1 inside the nozzle, An epoxy resin which is a thermal conductor 4 for heat transfer of the heating element 1 inserted into the nozzle housing 3 is injected into a part of the inside of the nozzle housing 3 in which the heating element 1 is inserted and then solidified.

However, in such a conventional 3-way washer nozzle, there is a problem in that the sea ice performance of the discharge port located at the upper end portion is lower than that of the conventional 2-way washer nozzle.

The reason for this is that the distance between the heating element and the upper discharge port is relatively long and the excessive amount of heat generated during the injection of the epoxy resin into the nozzle housing, And the assembly deviation of the heating element becomes excessive due to the viscosity of the bubble and the epoxy resin.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a washer fluid injection device for an automobile which can restrict the assembling flow of a heating member inside a washer nozzle to improve the heat transfer efficiency of the heating member, The purpose is to provide.

According to an aspect of the present invention, there is provided a nozzle body including a nozzle cover having a nozzle, a nozzle body having a washer fluid passage, and a block disposed parallel to the nozzle body at a front side of the nozzle cover. The heating space is provided with an installation space into which the generated heat transfer member is inserted and a heat conductive fluid for transferring the heat of the heating member to the vicinity of the injection opening is provided, The washer fluid injection device for an automobile is characterized in that ashes are installed.

According to an embodiment of the present invention, the positioned member has a left and right flow restricting protrusions for restricting lateral flow of the heating member protruded on the upper end thereof, and a front-rear flow restricting projection for restricting forward- A limiting projection is protruded.

According to an embodiment of the present invention, an inner space for installing a heating member is provided at the lower end of the nozzle cover, and the heating member is positioned between the upper surface of the positioned member and the upper surface of the inner space of the nozzle cover, The flow is limited.

In addition, the inner space of the nozzle cover is connected to the installation space, and the thermally conductive fluid injected into the installation space is filled up to the inner space.

According to an embodiment of the present invention, the positioned member includes a horizontal plate portion having a plate shape and a plate-shaped vertical surface portion protruding from the rear surface of the horizontal portion, and a plurality of fluid flow holes through which the thermally conductive fluid can pass, .

According to an embodiment of the present invention, the heating member includes a first wire and a second wire for receiving power, and the first wire and the second wire are spaced apart from each other in the front and back directions So that it is possible to prevent a short circuit due to a short circuit between the first and second wires.

According to an embodiment of the present invention, a guide for guiding the position of the stationary member located on the inner wall surface of the block body is protruded.

According to an embodiment of the present invention, the ejection openings of the nozzle cover are spaced apart from each other to form a triangular shape, and the heat generating members are disposed at the centers of the ejection openings spaced from each other, so that the heat transfer of the heat generating member is uniform.

Therefore, the washer fluid injection device of the automobile according to the present invention can reduce the assembling scattering of the heating member to improve the defective product rate, minimize the assembling flow of the heating member, shorten the sink time of the upper end injection hole, Can be fundamentally cut off and the merchantability can be improved.

1 is an external perspective view showing a washer nozzle of an automobile according to an embodiment of the present invention;
Fig. 2 is a view seen from AA of Fig.
Fig. 3 is a view from BB of Fig. 1
Fig. 4 is a cross-sectional view taken along line CC of Fig.
5 is a view showing the inside of a block body of the washer nozzle according to the embodiment of the present invention
6 is a schematic view showing a washer nozzle of the conventional 3-way method

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

The present invention relates to a washer nozzle of an automobile adopting a three-way system, which minimizes the assembling flow of a heating member mounted inside a nozzle, prevents a decrease in heat transfer efficiency due to an assembly deviation, .

To this end, a separate plastic structure is added to the inside of the nozzle.

1 to 3, the washer nozzle according to the present invention basically comprises a combination of an upper nozzle cover 10 and a lower nozzle body 20, and the nozzle cover 10 is provided with a plurality of nozzle openings And a washer fluid passage 21 communicating with the injection port 11 is formed in the nozzle body 20. The nozzle body 20 is formed with a plurality of nozzles 11,

A block body 30 arranged in parallel with the nozzle body 20 is formed to extend downward by a predetermined length at the front end side of the nozzle cover 10 and the inside of the block body 30 is provided with a heat- An installation space 31 for insertion of the member 40 and the stationary member 50 is formed.

The heat transfer fluid 60 made of epoxy resin or the like is injected and filled into the installation space 31 to allow the heat of the heat generating member 40 to be transmitted to the vicinity of the injection port 11 in the nozzle cover 10.

3, the ejection openings 11 of the nozzle cover 10 are spaced apart from each other to form a triangular shape. The heat generating member 40 is disposed at the center of the ejection openings 11 spaced from each other, 11) to the heat generating member (40) are equal to each other, the heat transfer of the heat generating member (40) is uniform.

An inner space 12 for installing the heating member 40 is provided at the bottom of the nozzle cover 10. The inner space 12 is connected to the installation space 31, The thermally conductive fluid 60 injected into the space 31 is filled up to the inner space 12.

A PTC heater or the like is used as the heating member 40. The heating member 40 is supported by the positioned member 50 and fixed on the upper side of the installation space 31. [

The stationary member 50 is a structure made of plastic or the like and is inserted and fixedly installed in the installation space 31 and disposed at the lower end of the heat generating member 40 to limit the position of the heat generating member 40, .

4 and 5, a guide 34 for guiding the position of the stationary member 50 inserted into the block body 30 is formed on the inner wall surface of the block body 30 on both left and right sides, And the guide 34 formed in this way allows the locating member 50 inserted in the block 30 to be assembled to be fixed at a predetermined position.

2 to 4, the stationary member 50 is a plate-like structure having a substantially T-shaped cross section, in which a plate-like horizontal surface portion 51 and a vertical surface portion 52 are integrally formed, A plurality of fluid flow holes 53, for example, a plurality of fluid flow holes 53 arranged in a line in the vertical direction, are formed on the horizontal surface portion 51 on both left and right sides with respect to the vertical surface portion 52.

The horizontal surface portion 51 is formed as a vertical plate structure extending from the lower end of the heat generating member 40 to the lower end of the installation space 31. The vertical surface portion 52 is formed on the rear surface of the horizontal surface portion 51 As shown in Fig.

The positioned member 50 includes left and right flow restricting projections 54 for restricting lateral flow of the heating member 40 and front and rear flow restricting projections 55 for restricting forward and backward flow of the heating member 40 So that the flow of the heat generating member 40 in the left and right direction and the back and forth direction is restricted in the installation space 31 of the block body 30 so that the heat generating member 40 is fixedly supported.

The left and right flow restricting protrusions 54 are adjacent to both the right and left sides of the heating member 40 at the upper end of the horizontal surface portion 51. The forward and backward flow restricting protrusions 55a, Are adjacent to the front and rear sides of the member (40) and the inner side of the lower end of the heating member (40) at the upper end of the horizontal surface portion (51).

2, a partially recessed portion is formed at the lower end of the heat generating member 40. The forward and backward flow restricting protrusions 55b of the horizontal surface portion 51 are inserted into the recessed portion, The flow of the gas can be limited. At this time, the front and rear flow restricting projections 55a of the vertical surface portion 52 support the rear surface of the heat generating member 40 to restrict the rearward movement of the heat generating member 40. [

The heating member 40 is disposed at the upper surface of the inner space 12 in which the heating member 40 is installed and the upper surface of the inner space 12 of the nozzle cover 10 So that the up-down flow is limited.

The heating member 40 is operated by receiving power through the first wire 41 and the second wire 42. At this time, the first wire 41 is connected to the front surface of the horizontal surface portion 51 The second wire 42 is disposed on the rear side of the horizontal surface portion 51 (the portion where the vertical surface portion 52 protrudes) side, and the first and second wires 42, It is possible to prevent a short circuit due to a short circuit of the two wires 41 and 42. [

That is, the heating member 40 is disposed on both sides of the horizontal surface portion 51 of the member 50 where the first and second wires 41 and 42 are positioned, and the horizontal surface portion 51 is a And serves as a barrier to prevent contact between the first and second wires 41 and 42 to prevent a short circuit.

The first and second wires 41 and 42 are extended to the outside of the block body 30 through a wire support 32 provided on the block body 30 and are electrically connected to a power supply unit (not shown).

The thermally conductive fluid 60 filled in the installation space 31 of the block body 30 is fluidized in the installation space 31 by the fluid flow holes 53 provided in the housing member 50 at which the thermally conductive fluid 60 is filled, And bubbles are prevented from being generated in the installation space 31 during the injection.

The positioned member 50 includes a plurality of grooves 56 connected to the fluid flow holes 53 of the horizontal surface portion 51 on the surface of the vertical surface portion 52 so as to extend in the longitudinal direction.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. Modified forms are also included within the scope of the present invention.

10: nozzle cover 11:
12: inner space 20: nozzle body
21: washer liquid passage 30:
31: installation space 32: wire support
40: heating member 41: first wire
42: second wire 50:
51: horizontal plane portion 52: vertical plane portion
53: fluid flow hole 54: left and right flow restricting projection
55, 55a, 55b: front and rear flow limiting projections
56: Groove
60: thermally conductive fluid

Claims (9)

A nozzle body having a nozzle cover having an injection port, a nozzle body having a washer fluid passage, and a block body disposed in parallel with the nozzle body at a front side of the nozzle cover, wherein a heating member for generating heat when power is supplied And an installation space into which the heat conductive fluid for introducing the heat of the heat generating member to the periphery of the injection port is provided, and a stationary member for limiting the flow of the heat generating member inserted into the installation space is installed in the installation space A washer fluid injection device for an automobile.
The method according to claim 1,
And the left and right flow restricting protrusions for restricting the left and right flow of the heat generating member are protruded on the upper portion of the positioned member.
The method according to claim 1,
Wherein the housing member is formed with a front-rear flow restricting protrusion protruding thereon for restricting forward-backward flow of the heating member.
The method according to claim 1,
Wherein an inner space for installing a heating member is provided at a lower end of the nozzle cover and the heating member is positioned between an upper face of the positioned member and an upper face of the inner space of the nozzle cover, Of the washer fluid.
The method according to claim 1,
Wherein an inner space for installing a heating member is provided at a lower end of the nozzle cover and the inner space is connected to the installation space so that the thermally conductive fluid injected into the installation space is filled up to the inner space. Jetting device.
The method according to claim 1,
Wherein the positioning member is composed of a plate-shaped horizontal surface portion and a plate-shaped vertical surface portion protruding from a rear surface of the horizontal surface portion, and a plurality of fluid flow holes through which a thermally conductive fluid can pass are formed in the horizontal surface portion. Device.
The method according to claim 1,
The heating member includes a first wire and a second wire to receive power, and the first wire and the second wire are spaced apart from each other on both sides of a horizontal surface of the positioned member, So that a short circuit due to a short-circuit of the washer can be prevented.
The method according to claim 1,
Wherein a guide for guiding the position of the stationary member located on the inner wall surface of the block body is protruded and formed.
The method according to claim 1,
Wherein the injection openings of the nozzle cover are spaced apart from each other to form a triangular shape and the heat generating members are disposed at the center of the injection openings spaced from each other so that heat is uniformly transferred to the heat generating members.

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