KR101848464B1 - Optical housing for preventing absorption of dust - Google Patents

Abstract

The present invention relates to an optical device housing for preventing dust and fumes. The present invention includes: an inner housing placed to surround an optical device, and comprising a front glass formed on the front side of the optical device; an outer housing including an air discharge part discharging air for cleaning the front glass and placed outside the inner housing while having a gap from the inner housing; and a cleaning air injecting part combined with a side of the outer housing and injecting the cleaning air into the gap between the inner housing and the outer housing through the outer housing. The cleaning air injected into the cleaning air injecting part cleans the front glass via the gap, and then, is discharged to the air discharge part.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an optical housing for preventing <

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical device housing for preventing dust and fume, and more particularly, to a housing for preventing dust and fume, and more particularly, To a housing for preventing optical defects.

Optical instruments including cameras and the like are used in various industrial fields. Since optical instruments are considerably more expensive and environmentally sensitive, optical instruments are usually installed in factories in the state of being coupled to an optical instrument housing.

On the other hand, contaminants such as steam, dust, and fumes are contained in the air existing in a normal plant.

In particular, when an oil component is contained in a contaminant, such contaminants adhere to the front glass disposed on the front surface of the optical apparatus, thereby deteriorating the function of the optical apparatus.

Several techniques have been proposed to prevent contamination from adhering to the windshield in that the operator can not clean the windshield from time to time. The techniques are described in Korean Patent Application No. 20-2007-0015518 (Prior Art 1), Korean Patent Application No. 20-2000-0029297 (Prior Art 2), Korean Patent Office Application No. 10-2003-7008386 Prior Art 3), Korean Patent Office Application No. 10-2001-0082980 (Prior Art 4).

Particularly, the prior art 1 proposes a technique of preventing foreign matter from adhering to the windshield by jetting air obliquely from the outside toward the windshield of the optical device.

However, in this case, since the structure for injecting the air obliquely toward the windshield of the optical apparatus may become somewhat complicated and the effect may be substantially inferior to that of the structure, a new concept optical housing There is a need for

Prior Art 1; Korea Patent Office Application No. 20-2007-0015518 Prior Art 2; Korea Patent Office Application No. 20-2000-0029297 Prior Art 3; Korea Patent Office Application No. 10-2003-7008386 Prior Art 4; Korea Patent Office Application No. 10-2001-0082980

An object of the present invention is to provide a housing for an optical device for preventing dust and fumes, which can prevent contaminants such as steam, dust, and fumes from adhering to a front glass of an optical device through a compact and efficient structure.

The object of the present invention is achieved by an optical device comprising an inner housing which is disposed to surround an optical device and has a front glass formed on a front surface of the optical device; An outer housing having an air discharging portion through which clean air for cleaning the front glass is discharged and which is disposed outside the inner housing with a gap between the inner housing and the outer housing; And a clean air injection unit coupled to one side of the outer housing and injecting the clean air into a space separated from the inner housing and the outer housing through the outer housing, And the clean air is cleaned through the spaced space to be discharged to the air discharge unit.

Wherein the clearance space formed between the inner housing and the outer housing includes an air flow path through which the clean air injected into the clean air injection unit flows; And an air blower which is formed to a space between the front glass and the air discharging portion and which is narrower than the air flow path so as to accelerate the speed of the air flowing in the air flow path after being bent at an end of the air flow path, An accelerated flow path.

Wherein the air discharging portion is a protruding air discharging portion protruding along the direction in which the clean air is discharged from the surface of the outer housing, the area of the protruding air discharging portion is equal to the area of the front glass, The clean air injection unit and the spacing space may be arranged symmetrically with respect to the air discharge unit.

According to another aspect of the present invention, there is provided an optical device comprising: an inner housing having a front glass formed on a front surface of the optical device so as to surround the optical device; An outer housing having an air discharging portion through which clean air for cleaning the front glass is discharged and which is disposed outside the inner housing with a gap between the inner housing and the outer housing; And a clean air injection unit coupled to one side of the outer housing for injecting the clean air into the space separated between the inner housing and the outer housing through the outer housing, Wherein the clearance space formed in the clean air inflow portion is an air flow path through which the clean air injected into the clean air inflow portion flows; And an air discharge port formed in the space between the front glass and the air discharge port, the air flow port being formed to be 1/2 times narrower than the air flow path, Wherein the clean air injected into the clean air inflow passage first passes through an air flow path in the spaced space and then passes through the air acceleration flow path to accelerate the air, Cleaning air is guided from the air flow path to the air acceleration flow path to the boundary region between the air flow path and the air acceleration flow path, Wherein the cleaning air is supplied to the air discharge portion at an end region of the air acceleration flow path, An air guide for front glass is provided which is bent in an arc shape toward the front glass so as to guide the direction of the clean air so that the front glass can be priced before being discharged, And a protruding air discharging portion protruding along the direction in which the clean air is discharged from the surface, wherein an area of the protruding air discharging portion is equal to an area of the front glass, And the air space for clean air and the spacing space are symmetrically arranged.

According to the present invention, contaminants such as steam, dust, and fumes can be prevented from adhering to the front glass of an optical apparatus through a compact and efficient structure.

1 is a schematic cross-sectional structural view of a housing for preventing dust and fumes according to a first embodiment of the present invention.
FIG. 2 is a view showing a process of flowing clean air in FIG.
3 is a schematic cross-sectional structural view of a housing for preventing dust and fumes according to a second embodiment of the present invention.
4 is a schematic cross-sectional structural view of an optical instrument housing for preventing dust and fumes according to a third embodiment of the present invention.
Fig. 5 is an enlarged view of the main part of Fig. 4, showing the structure of the main part when the first air clean air supply unit is operated.
Fig. 6 is an enlarged view of the main part of Fig. 4, showing the structure of the main part when the second air cleaner / cleaner is operated.
Figure 7 is a control block diagram of Figure 4;

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the present specification, the present embodiment is provided to complete the disclosure of the present invention and to fully disclose the scope of the invention to a person having ordinary skill in the art to which the present invention belongs. And the present invention is only defined by the scope of the claims.

Thus, in some embodiments, well known components, well known operations, and well-known techniques are not specifically described to avoid an undesirable interpretation of the present invention.

Like reference numerals refer to like elements throughout the specification. And (used) terms used herein are for the purpose of illustrating embodiments and are not intended to limit the invention.

In the present specification, the singular form includes plural forms unless otherwise specified. Also, components and acts referred to as " comprising (or comprising) " do not exclude the presence or addition of one or more other components and operations.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs.

Also, commonly used predefined terms are not ideally or excessively interpreted unless they are defined.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a schematic cross-sectional structural view of an optical device housing for preventing dust and fumes according to a first embodiment of the present invention, and FIG. 2 is a view illustrating a process of flowing clean air in FIG.

Referring to these figures, the housing 100 for preventing dust and smoke fumes according to the present embodiment has a compact and efficient structure, and contaminants such as steam, dust, and fumes are adhered to the front glass 111 of the optical device 1 And includes an inner housing 110, an outer housing 120, a spacing space 140 formed therebetween, and a clean air injection unit 130 .

The inner housing 110 is a housing that is disposed so as to surround the optical device 1. [ The optical device 1 may be variously applied to an electronic device such as a camera.

A front glass 111 is formed on the front surface of the inner housing 110. Therefore, the optical device 1 in the inner housing 110 can take a front view through the front glass 111. [

However, as described above, contaminants such as steam, dust, and fumes are contained in the air existing in a normal factory. If the oil component is contained in the contaminant, And adhere to the glass 111, thereby deteriorating the function of the optical device 1. [

Accordingly, in this embodiment, contaminants such as steam, dust, and fumes are prevented from adhering to the front glass 111 of the optical device 1 more effectively by providing the following compact structure different from the conventional one.

To this end, the outer housing 120 is applied to the housing 100 for preventing dust and fumes according to the present embodiment, unlike the conventional products.

The outer housing 120 is a housing disposed outside the inner housing 110 with a space 140 between the inner housing 110 and the inner housing 110 interposed therebetween.

When the outer housing 120 is disposed outside the inner housing 110 as in the present embodiment, the optical device 1 can be more stably protected as a double structure. That is, it is possible to prevent the phenomenon that the heat of the factory or the like is directly transmitted to the optical device 1 and the optical device 1 is damaged.

In addition, when the outer housing 120 is disposed outside the inner housing 110 as in the present embodiment, a space for the clean air for cleaning the front glass 111 may be formed between the outer housing 120 and the outer housing 120 Can be formed naturally and the front glass 111 can be cleaned as the clean air effectively flows through the spacing space 140.

The clean air injecting unit 130 is coupled to one side of the outer housing 120 and is connected to the inner housing 110 and the outer housing 120 through the outer housing 120. [ And the cleaning air is injected into the separation space 140 between the cleaning space 140 and the cleaning space 140.

In this embodiment, the clean air injecting portion 130 and the spacing space 140 are disposed symmetrically with respect to the air discharging portion 121. Although the clean air injecting portions 130 are shown as a pair in the drawing, three or more clean air injecting portions 130 may be arranged at regular intervals along the circumferential direction.

The spacing space 140 formed between the inner housing 110 and the outer housing 120 in the present embodiment includes an air flow path 141 through which clean air injected into the clean air injection unit 130 flows, And a space between the front glass 111 and the air discharging part 121 so as to be narrower than the air flow path 141 so that the air flow path 141 An air accelerating flow path 142 that accelerates the velocity of the air flowing in the flow path 142.

When the spacing space 140 formed between the inner housing 110 and the outer housing 120 is formed by the air flow path 141 and the air acceleration flow path 142 having different widths, 130 is passed through the air flow path 141 of the spacing space 140 and then passes through the air accelerating flow path 142 so that the speed of the front glass 111 is increased Cleaned while being charged, and then discharged to the air discharge unit 121. [ In other words, since the clean air can charge the front glass 111 at a high speed, adhesion of contaminants such as steam, dust, and fumes to the front glass 111 can be effectively prevented.

Let's take a closer look. The flow of the clean air toward the air flow path 141 is slow, but when the clean air passes the air acceleration flow path 142, the flow path becomes narrower and the flow becomes faster. In this state, the front glass 111 So that the adhesion of the contaminants to the front glass 111 can be effectively prevented.

In this embodiment, the air discharging portion 121 is applied as a protruding air discharging portion 121 protruding along the direction in which the clean air is discharged from the surface of the outer housing 120. At this time, the area of the protruding air discharging portion 121 may be the same as the area of the front glass 111.

When the protruding air discharging portion 121 is applied as in the present embodiment, there is an advantage that the air can be smoothly discharged without the vortex of the air having the increased flow velocity.

In addition, when the protruding air discharging portion 121 is applied as in the embodiment, it also has an effect of preventing the contaminants in the factory from being in direct contact with the windshield 111. That is, considering that the air containing the oil component remains in the inside of the factory, it is possible to prevent the direct contact of the windshield 111 to some extent by using the protruding air discharging portion 121 protruded as in the present embodiment .

According to the present embodiment having the structure and function as described above, it is possible to prevent adhesion of contaminants such as steam, dust, and fumes to the front glass 111 of the optical device 1 through a compact and efficient structure do.

3 is a schematic cross-sectional structural view of a housing for preventing dust and fumes according to a second embodiment of the present invention.

Referring to this figure, the housing 200 for dust and fume-preventing optical apparatus according to the present embodiment also includes an inner housing 110 and an outer housing 120, which are disposed in a double space with a space 140 therebetween, And a clean air injection unit 130 formed in the cleaner 120.

The spacing space 140 includes a wide air flow path 141 and an air acceleration flow path 142 that is narrower than the air flow path 141 to induce acceleration of clean air. At this time, the air acceleration flow path 142 may be formed to be ½ times narrower than the width of the air flow path 141.

On the other hand, in such a structure, a vortex prevention air guide (not shown) for guiding the clean air from the air flow path 141 to the air acceleration flow path 142 is provided in the boundary region between the air flow path 141 and the air acceleration path 142 (243).

When the vortex prevention air guide 243 is provided in the boundary region between the air flow path 141 and the air acceleration flow path 142 as in the present embodiment, the air can be effectively flowed in this region without occurrence of swirling of the air.

In the present embodiment, an arc is generated in the end region of the air accelerating flow path 142 toward the front glass 111 so that the front glass 111 can be priced before the clean air is discharged to the protruding air discharging portion 121. [ an air guide 244 for the front glass price is provided which is bent in an arc shape to guide the direction of the clean air.

When the wind guide air guide 244 is provided in the end region of the air accelerating flow path 142 as in the present embodiment, the clean air reached in this area is guided by the wind guide air guide 244 in the direction Type air discharge unit 121 after the front glass 111 is changed to prevent the adhesion of contaminants such as steam, dust, and fumes to the front glass 111 Can be more helpful.

It is possible to prevent contaminants such as steam, dust, and fumes from adhering to the front glass 111 of the optical device 1 through a compact and efficient structure even if the present embodiment is applied.

FIG. 4 is a schematic cross-sectional structural view of an optical instrument housing for preventing dust and fumes according to a third embodiment of the present invention. FIG. 5 is an enlarged view of the main part of FIG. Fig. 6 is an enlarged view of the main part of Fig. 4, showing the structure of a main part when the second air cleanup and supply section for clean air is operated, and Fig. 7 is a control block diagram of Fig.

Referring to these drawings, the housing 300 for preventing dust and fumes according to the present embodiment is substantially the same as the structure of FIG. 3 which is the second embodiment described above.

However, in the housing 300 for preventing dust and fumes according to the present embodiment, several constructions compared to the second embodiment are further added to provide efficient operation. Only differences from the second embodiment will be described.

The dust housing device 300 for preventing dust and fumes according to the present embodiment is provided with the contamination detecting portion 375, the first and second air compressing / supplying portions 361 and 362 for clean air, the first and second sliding doors First and second sliding door driving units 371a and 372a, and a controller 380. The first and second sliding door driving units 371a and 372a and the first and second sliding door driving units 371a and 372a,

The contamination detecting unit 375 is provided in the inner housing 110 and detects the degree of contamination of the windshield 111.

The first clean air compression supply section 361 is provided in the first clean air injection section 130a and supplies compressed air for cleaning to the first clean air injection section 130a.

The second clean air compressing and supplying unit 362 is provided in the second clean air injecting unit 130b and supplies compressed air for cleaning to the second clean air injecting unit 130b.

The first sliding door 371 is provided at one side of the inner wall of the protruding air discharge portion 121 and is slid as shown in FIG. 4 to shield the corresponding path of the air accelerated flow path 142. The first sliding door 371 can be slidably operated by a first sliding door driving portion 371a, which can be applied, for example, to a cylinder or a motor.

The second sliding door 372 is provided on the other side of the inner wall of the protruding air discharging portion 121 and is slidably operated as shown in FIG. 4 in FIG. 4 to shield the corresponding path of the air accelerating flow path 142. The second sliding door 372 can also be slidably operated by the second sliding door driving portion 372a, which can be applied to a cylinder, a motor, or the like.

In the present embodiment, the controller 380 substitutes the contamination degree detection value of the windshield 111 transferred from the contamination detection unit 375 into a predetermined contamination detection table (not shown), and then the first clean air The first clean air supply / supply unit 361 and the second clean air supply / supply unit 362 are operated simultaneously to alternately operate the compression supply unit 361 and the second clean air supply / supply unit 362 at intervals of 10 seconds And then controls the operation of the first and second clean air compression supply units 361 and 362 based on the determined result values.

In addition, in the present embodiment, when the first clean air supply / supply unit 361 and the second clean air supply / supply unit 362 are alternately operated at intervals of 10 seconds, the controller 380 interlocks with the first and second clean air supply / So that the second sliding doors 371 and 372 are slidably operated. That is, when the first clean air compressing / supplying part 361 is operated alone, the second sliding door 372 is operated to block the corresponding path as shown in FIG. 5, thereby preventing the loss of the clean air, When the supply unit 362 is operated alone, the first sliding door 371 is operated to shield the corresponding path as shown in FIG. 6, thereby controlling the loss of the clean air.

The controller 380 performing such a role may include a central processing unit 381 (CPU), a memory 382 (MEMORY), and a support circuit 383 (SUPPORT CIRCUIT).

The central processing unit 381 is connected to various computer processors that can be industrially applied to control the operation of the first and second air compressing / supplying units 361 and 362 and the first and second sliding doors 371 and 372 in this embodiment. Lt; / RTI >

The memory 382 (MEMORY) is connected to the central processing unit 381. The memory 382 may be a computer readable recording medium and may be located locally or remotely and may be any of various types of storage devices, including, for example, random access memory (RAM), ROM, floppy disk, hard disk, May be at least one or more memories.

A support circuit 383 (SUPPORT CIRCUIT) is coupled with the central processing unit 381 to support the typical operation of the processor. Such a support circuit 383 may include a cache, a power supply, a clock circuit, an input / output circuit, a subsystem, and the like.

In this embodiment, the controller 380 controls the operation of the first and second clean air supply / supply units 361 and 362 and the first and second sliding doors 371 and 372.

That is, the controller 380 substitutes the contamination degree detection value of the front glass 111 transferred from the contamination detection unit 375 into a predetermined contamination detection table (not shown), and then the first clean air compression supply unit 361 And the second clean air supply / supply unit 362 are alternately operated at intervals of 10 seconds. Then, it is determined whether the first clean air supply / supply unit 361 and the second clean air supply / supply unit 362 are to be operated simultaneously, Not only the operation of the first and second clean air compressing / supplying sections 361 and 362 is controlled based on the determined result value, but the first clean air compressing / supplying section 361 and the second clean air compressing / The first and second sliding doors 371 and 372 are operated to be slidably operated. The series of processes and the like can be stored in the memory 382. [0157] FIG. Typically, a software routine may be stored in memory 382. The software routines may also be stored or executed by other central processing units (not shown).

Although processes according to the present invention are described as being performed by software routines, it is also possible that at least some of the processes of the present invention may be performed by hardware. As such, the processes of the present invention may be implemented in software executed on a computer system, or in hardware such as an integrated circuit, or in combination of software and hardware.

It is possible to prevent contaminants such as steam, dust, and fumes from adhering to the front glass 111 of the optical device 1 through a compact and efficient structure even if the present embodiment is applied.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It is therefore intended that such modifications or alterations be within the scope of the claims appended hereto.

1: Optical instrument 100: Optical instrument housing for preventing dust and fumes
110: Inner housing 111: Front glass
120: outer housing 121: air outlet
130: Clean air injection unit 140: Spacing space
141: air flow path 142: air accelerated flow path

Claims (4)

An inner housing disposed to surround the optical device and having a front glass formed on a portion corresponding to a front surface of the optical device;
An outer housing disposed on an outer side of the inner housing to be spaced apart from the inner housing and having an air discharging portion through which clean air for cleaning the front glass is discharged; And
A clean air injection unit coupled to one side of the outer housing and injecting the clean air into the space separated between the inner housing and the outer housing through the outer housing; Lt; / RTI >
The air space is divided into an air flow path through which the clean air injected into the clean air injecting portion flows and a second air flow path through which the air is injected to accelerate the speed of air flowing in the air flow path, And an air accelerating flow path bent from an end of the flow path and extending to a space between the front glass and the air discharging portion,
An airflow guiding air guide which is bent in an arc shape in a boundary region between the air flow path and the air acceleration flow path to guide a clean air from the air flow path to the air acceleration flow path, And a front glass price air guide installed in a boundary region between the flow path and the air discharge portion so as to be bent in an arc shape toward the front glass so as to guide the direction of the clean air, And the clean air is cleaned by the air guide for the front glass price so that the front glass is cleaned and then discharged to the air discharge unit.
Wherein the dust-fume-preventing optical device housing comprises:
delete The method according to claim 1,
Wherein the air discharging portion is a protruding air discharging portion protruding along the direction in which the clean air is discharged from the surface of the outer housing,
Wherein an area of the protruding air discharging portion is equal to an area of the front glass,
Wherein the clean air introducing portion and the spacing space are disposed symmetrically with respect to the protruding air discharging portion.
An inner housing disposed to surround the optical device and having a front glass formed on a portion corresponding to a front surface of the optical device;
An outer housing disposed on an outer side of the inner housing to be spaced apart from the inner housing and having an air discharging portion through which clean air for cleaning the front glass is discharged;
A clean air injection unit coupled to one side of the outer housing and injecting the clean air into the space separated between the inner housing and the outer housing through the outer housing;
A contamination detecting unit provided in the inner housing to detect contamination of the front glass;
A clean air compression supply unit for injecting compressed air for clean into the clean air injection unit;
A controller for controlling the operation of the clean air supply / supply unit according to the contamination detection value transmitted from the contamination detection unit; And
A sliding door installed in the air discharge portion and interlocking with the operation of the air compression and supply portion for cleaning to prevent the clean air from being discharged through the air discharge portion; Lt; / RTI >
The air space is divided into an air flow path through which the clean air injected into the clean air injecting portion flows and a second air flow path through which the air is injected to accelerate the speed of air flowing in the air flow path, And an air accelerating flow path bent from an end of the flow path and extending to a space between the front glass and the air discharging portion,
An airflow guiding air guide which is bent in an arc shape in a boundary region between the air flow path and the air acceleration flow path to guide a clean air from the air flow path to the air acceleration flow path, And a front glass price air guide installed in a boundary region between the flow path and the air discharge portion so as to be bent in an arc shape toward the front glass so as to guide the direction of the clean air, The clean air is cleaned by the air guide for the front glass price at the cost of the front glass and then discharged to the air discharge unit,
Wherein the air discharging portion is a protruding air discharging portion protruding along the direction in which the clean air is discharged from the surface of the outer housing, the area of the air discharging portion is equal to the area of the front glass, Wherein the clean air injection unit and the spacing space are arranged symmetrically with respect to each other,
Wherein the dust-fume-preventing optical device housing comprises:

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