KR102552659B1 - Vehicle hose and system of detecting deformation of vehicle hose - Google Patents

Abstract

An embodiment of the present invention includes a first rubber layer, a knitted fabric layer wrapping and reinforcing the first rubber layer, a second rubber layer formed to surround the knitted fabric layer, and the first rubber layer and the knitted fabric layer. and a conductive thin film layer disposed between at least one of the braided layer and the second rubber layer.

Description

Vehicle hose and vehicle hose deformation detection system {VEHICLE HOSE AND SYSTEM OF DETECTING DEFORMATION OF VEHICLE HOSE}

The present invention relates to apparatus and systems, and more particularly to a vehicle hose and a system for detecting deformation of such a vehicle hose.

Generally, vehicles include various systems. For example, a vehicle includes systems such as a brake line, a fuel line, a power steering line, an air conditioner line, and a low pressure line, and a vehicle hose may be used for these systems. In the case of such a vehicle hose, in addition to the basic performance required as a pipe line according to the system, it may have different mechanical properties and fluidity as a tube body required for each system.

In general, vehicle hoses are often made of rubber and plastic, so the vehicle hose is deformed by opening the vehicle and checking for abnormalities through visual and system inspection, or by cutting the vehicle hose and checking its cross section. It remains to be seen whether or not this is the case.

A technical problem to be achieved by the present invention is to provide a vehicle hose and a deformation detection system capable of increasing the accuracy of detecting the amount of deformation for each layer when the vehicle hose is swaged.

The technical problem to be achieved by the present invention is not limited to the above-mentioned technical problem, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. There will be.

A vehicle hose according to an embodiment of the present invention includes a first rubber layer, a knitted fabric layer wrapping and reinforcing the first rubber layer, a second rubber layer formed to surround the knitted fabric layer, and the first rubber layer. A conductive thin film layer disposed on at least one of between the rubber layer and the braided layer and between the braided layer and the second rubber layer may be included.

In one embodiment of the present invention, the conductive thin film layer is disposed between the first rubber layer and the braided layer and disposed between the first thin film layer surrounding the first rubber layer, and disposed between the braided layer and the second rubber layer to It may include a second thin film layer surrounding the braided layer.

In one embodiment of the present invention, the first thin film layer and the second thin film layer may be formed to have different thicknesses.

In one embodiment of the present invention, the conductive thin film layer may be formed to a thickness thinner than the first rubber layer, the braided layer, and the second rubber layer.

In one embodiment of the present invention, the conductive thin film layer may have a thickness of 0.1 mm or less.

In one embodiment of the present invention, the conductive thin film layer may be formed in the form of a film having a shape corresponding to the first rubber layer or the braided layer.

In one embodiment of the present invention, the conductive thin film layer may be formed by spraying a conductive material on an outer surface of at least one of the first rubber layer and the braided layer.

A deformation detection system of a vehicle hose according to another embodiment of the present invention is a system for detecting a deformation state of a vehicle hose, comprising: a detection device for acquiring a tomographic image by photographing the vehicle hose; and a tomogram captured by the detection device. It may include a processor that analyzes an image to determine a deformation state of the vehicle hose, and an output unit that outputs a deformation detection result of the vehicle hose to the outside based on a result of the determination of the processor.

In another embodiment of the present invention, the detection device may include at least one of a tomographic image of the joint portion of the vehicle hose before the vehicle hose is coupled to the pipe and a tomographic image of the coupling portion of the vehicle hose after the vehicle hose is coupled to the pipe. can shoot one.

In another embodiment of the present invention, the processor compares a tomographic image of the coupling portion of the vehicle hose before the coupling with a tomographic image of the coupling portion of the vehicle hose after the coupling, and determines whether or not deformation of the vehicle hose has occurred. The occurrence location and degree of deformation can be determined.

A vehicle hose and a deformation detection system for a vehicle hose according to embodiments of the present invention place a conductive thin film layer of a flexible material between each layer provided in a multi-layered vehicle hose to divide each layer, thereby reducing the inside of the vehicle hose. Even when each layer is made of the same or similar material, the deformation state of each layer can be accurately detected through CT imaging.

In addition, it is not necessary to cut the cross section to check the deformation of the vehicle hose, and by checking the state of deformation only with tomography, it is possible to prevent additional deformation due to the cross-section cutting, thereby improving the accuracy of deformation detection.

The effects of the present invention are not limited to the above effects, and should be understood to include all effects that can be inferred from the description of the present invention or the configuration of the invention described in the claims.

1 is a perspective view showing an example of a brake system.
Figure 2 shows a hose deformation detection system for a vehicle according to an embodiment of the present invention.
Figure 3 is a perspective view showing a hose for a vehicle according to an embodiment of the present invention.
FIG. 4 is an enlarged view showing an A2 region and a braided layer provided thereon in the vehicle hose of FIG. 3 .
5 is a cross-sectional view of a hose for a vehicle according to an embodiment of the present invention.
6 is a cross-sectional view of a hose for a vehicle according to another embodiment of the present invention.
7 shows a portion of a tomographic image of a vehicle hose captured using a conventional vehicle hose deformation detection system.
FIG. 8 shows a portion of a tomographic image of a vehicle hose taken using the system of FIG. 2 .

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and, therefore, is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is said to be "connected (connected, contacted, combined)" with another part, this is not only "directly connected", but also "indirectly connected" with another member in between. "Including cases where In addition, when a part "includes" a certain component, it means that it may further include other components without excluding other components unless otherwise stated.

Terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "include" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

1 is a perspective view showing an example of a brake system.

Referring to FIG. 1 , the vehicle hose may be a vehicle hose used for a pressure transmission mechanism such as a brake hose 100 and a power steering hose. In this embodiment, the brake hose 100 is described as an example of a hose for a vehicle, but the present invention is not limited to application to the brake hose 100.

In general, the brake hose 100 of the brake device includes a master cylinder 70 through which pressure oil is supplied to the end of the brake pipe 60 by the operation of a brake pedal inside the vehicle, and a pressure oil introduced from the master cylinder 70. Connect the wheel cylinder to When the driver steps on the brake pedal, hydraulic pressure is generated in the master cylinder 70, and the hydraulic oil is sent to the wheel cylinder through the brake hose 100 by the hydraulic pressure. At this time, the wheel cylinder is expanded by the pressure oil to press the brake shoe against the drum 50, so that the vehicle is in a braking state.

Figure 2 shows a hose deformation detection system for a vehicle according to an embodiment of the present invention.

Referring to FIG. 2, the vehicle hose deformation detection system 10, in the process of coupling the vehicle hose 100 to the pipe P through a processing process such as swaging, the vehicle hose generated by an external force ( 100) may be a system for detecting deformation. At this time, the vehicle hose deformation detection system 10 may include a vehicle hose 100 to be deformation detected, a detection device 200, and a processor 300.

Figure 3 is a perspective view showing a hose for a vehicle according to an embodiment of the present invention. FIG. 4 is an enlarged view showing an A2 region and a braided layer provided thereon in the vehicle hose of FIG. 3 . 5 is a cross-sectional view of a hose for a vehicle according to an embodiment of the present invention, and FIG. 6 is a cross-sectional view of a hose for a vehicle according to another embodiment of the present invention.

Referring to FIG. 3 , the vehicle hose 100 may have a multi-layered structure. As an embodiment, the vehicle hose 100 may include a first rubber layer 110, a knitted fabric layer, a second rubber layer 130, and a conductive thin film layer (F). In addition, the vehicle hose 100 may further include a cover rubber layer 150 . At this time, the braided layer may include a first braided layer 120 and a second braided layer 140 .

The first rubber layer 110 may be a layer disposed inside the vehicle hose 100 . Specifically, based on the radial direction of the vehicle hose 100 of the first rubber layer 110, it may be disposed on the innermost side. The first rubber layer 110 may be a rubber layer having a hollow penetrating therein and having an annular cross section. The first rubber layer 110 may be made of, for example, a fluoro rubber composition.

Referring to FIG. 4 , the first braided layer 120 may be formed to surround the first rubber layer 110 to reinforce the first rubber layer 110 . At this time, the first braided layer 120 may be formed by braiding a reinforcing member. Specifically, the reinforcing member may be in the form of a fiber such as a reinforcing yarn.

The first braided layer 120 may be formed by braiding a fibrous reinforcing yarn in a net shape. By being braided in this way, the first braided layer 120 can have high flexibility, and thus the shape of the vehicle hose 100 can be easily deformed.

The second rubber layer 130 may be formed to surround the first braided layer 120 . Similar to the first rubber layer 110 described above, the second rubber layer 130 may be a rubber layer having a hollow penetrating therein and having an annular cross section.

The second braided layer 140 may be formed to surround the second rubber layer 130 and reinforce the second rubber layer 130 . At this time, the second braided layer 140 may be formed by braiding a reinforcing member in the form of fibers such as reinforcing yarn. Other specific features of the second braided layer 140 are the same as or similar to those of the first braided layer 120 described above, and therefore, overlapping descriptions thereof will be omitted.

The cover rubber layer 150 may be a rubber layer disposed outside the vehicle hose 100 . Specifically, the cover rubber layer 150 is formed to surround the second braided layer 140 and may be a rubber layer disposed on the outermost side of the vehicle hose 100 in a radial direction. For example, the cover rubber layer 150 may be made of a silicone rubber composition so as to cover and cover the second braided layer 140 .

At least one conductive thin film layer (F) is inserted between each layer of the multi-layered vehicle hose 100, and can be used to check the deformation of each layer of the vehicle hose 100 caused by an assembly process such as swaging. .

The conductive thin film layer (F) may be a thin layer portion provided between the rubber layer and the braided layer. As an example, the conductive thin film layer F may be in the form of a thin film made of a conductive material disposed between the rubber layer and the braided layer.

A conductive material constituting the conductive thin film layer F may include, for example, a conductive metal having ductility such as copper, silver, aluminum, or lead. Accordingly, the conductive thin film layer F may be formed in the form of copper foil, silver foil, aluminum foil, or lead foil.

The conductive thin film layer F in the form of a film may be disposed to be fixed between the rubber layer and the braided layer. Specifically, the conductive thin film layer (F) is fixed by being pressed and fitted around the conductive thin film layer (F) by a rubber layer and a braided layer arranged to face the inner and outer surfaces of the conductive thin film layer (F). It can be. At this time, the fixing force may be improved by applying an adhesive to the inner and outer surfaces of the conductive thin film layer (F) and adhering to the rubber layer and the braided layer.

As such, since the conductive thin film layer (F) is disposed in a fixed state between the rubber layer and the braided layer, it is possible to prevent the position of the conductive thin film layer (F) from being changed by force applied during the swaging process.

As another embodiment, the conductive thin film layer F may be formed by spraying a conductive material on the outer surface of at least one of the rubber layer and the braided layer. At this time, the sprayed conductive material may be a metal plating solution having conductivity, such as copper, silver, aluminum or lead.

Specifically, the conductive thin film layer (F) may be formed by spraying a conductive metal plating solution evenly over the entire outer surface of the rubber layer or braided layer to coat the outer surface of the rubber layer or braided layer with a thin conductive metal coating layer. At this time, the conductive metal coating layer may be formed to a thickness of 0.1 mm or less.

As described above, the conductive thin film layer (F) may be disposed between the rubber layer and the braided layer. Specifically, the conductive thin film layer (F) is between the first rubber layer 110 and the first braided layer 120, between the first braided layer 120 and the second rubber layer 130, the second rubber layer 130 and the second It may be disposed either between the braided layers 140 or between the second braided layer 140 and the cover rubber layer 150 . In this case, the conductive thin film layer F may include a first thin film layer F1, a second thin film layer F2, a third thin film layer F3, and a fourth thin film layer F4.

The first thin film layer F1 may be disposed between the first rubber layer 110 and the first braided layer 120 . Specifically, the first thin film layer F1 is formed to surround the outer surface of the first rubber layer 110, and at this time, the first braided layer 120 may be disposed to surround the outer surface of the first thin film layer F1. .

In the case of an embodiment in which the first thin film layer F1 is provided in the form of a film, the first thin film layer F1 is provided in a shape corresponding to the first rubber layer 110 so that the outer surface of the first rubber layer 110 is in close contact. It can be arranged to wrap in a state. And, as the first braided layer 120 wraps the outer surface of the first thin film layer F1 in close contact, the first thin film layer F1 is formed by the first rubber layer 110 and the first braided layer 120. can be pressurized. Accordingly, the first thin film layer F1 may be fixed between the first rubber layer 110 and the first braided layer 120 .

On the other hand, in the case of another embodiment in which the first thin film layer F1 is formed by spraying on the first rubber layer 110, a conductive material is sprayed and coated on the outer surface of the first rubber layer 110, thereby forming the first thin film layer F1. is formed, and the first braided layer 120 may be disposed to surround the outer surface of the first thin film layer F1.

The second thin film layer F2 may be disposed between the first braided layer 120 and the second rubber layer 130 to surround the first braided layer 120 . Specifically, the second thin film layer F2 is formed to surround the outer surface of the first braided layer 120, and at this time, the second rubber layer 130 may be disposed to surround the outer surface of the second thin film layer F2. .

In the case of an embodiment in which the second thin film layer F2 is provided in the form of a film, the second thin film layer F2 is provided in a shape corresponding to the first braided layer 120 to cover the outer surface of the first braided layer 120. It may be arranged so as to be wrapped in a closely attached state. In addition, the second rubber layer 130 wraps the outer surface of the second thin film layer F2 in close contact, so that the second thin film layer F2 is pressed by the first braided layer 120 and the second rubber layer 130. It can be. Accordingly, the second thin film layer F2 may be fixed between the first braided layer 120 and the second rubber layer 130 .

The third thin film layer F3 may be disposed between the second rubber layer 130 and the second braided layer 140 to surround the second rubber layer 130 . Specifically, the third thin film layer F3 is formed to surround the outer surface of the second rubber layer 130, and at this time, the second braided layer 140 may be disposed to surround the outer surface of the third thin film layer F3. .

In the case of an embodiment in which the third thin film layer (F3) is provided in the form of a film, the third thin film layer (F3) is provided in a shape corresponding to the second rubber layer 130, so that the outer surface of the second rubber layer 130 is in close contact. It can be arranged to wrap in a state. In addition, the second braided layer 140 wraps the outer surface of the third thin film layer F3 in close contact, so that the third thin film layer F3 is formed by the second rubber layer 130 and the second braided layer 140. can be pressurized. Accordingly, the third thin film layer F3 may be fixed between the second rubber layer 130 and the second braided layer 140 .

Meanwhile, in another embodiment in which the third thin film layer F3 is formed by spraying on the second rubber layer 130, a conductive material is sprayed and coated on the outer surface of the second rubber layer 130, thereby forming the third thin film layer F3. is formed, and the second braided layer 140 may be disposed to surround the outer surface of the third thin film layer F3.

The fourth thin film layer F4 may be disposed between the second braided layer 140 and the cover rubber layer 150 to surround the second braided layer 140 . Specifically, the fourth thin film layer F4 is formed to surround the outer surface of the second braided layer 140, and at this time, the cover rubber layer 150 may be disposed to surround the outer surface of the fourth thin film layer F4.

In the case of an embodiment in which the fourth thin film layer F4 is provided in the form of a film, the fourth thin film layer F4 is provided in a shape corresponding to the second braided layer 140 to cover the outer surface of the second braided layer 140. It may be arranged so as to be wrapped in a closely attached state. And, since the cover rubber layer 150 wraps the outer surface of the fourth thin film layer F4 in close contact, the fourth thin film layer F4 can be pressed by the second braided layer 140 and the cover rubber layer 150. there is. Accordingly, the fourth thin film layer F4 may be fixed between the second braided layer 140 and the cover rubber layer 150 .

The conductive thin film layer (F) may have a thickness smaller than that of the rubber layer and the braided layer. Specifically, the conductive thin film layer (F) may be formed to a thickness of less than half of the thickness of the rubber layer or the thickness of the braided layer, and preferably may be formed to a thickness of less than 1/10. For example, the conductive thin film layer F may have a thickness greater than 0 and less than or equal to 0.1 mm.

As such, since the conductive thin film layer (F) is formed with a fine size, when deformation due to swaging occurs, the deformation of the conductive thin film layer (F) itself can be prevented from affecting the rubber layer or braided layer adjacent thereto. there is. Accordingly, additional deformation of the rubber layer or the braided layer due to the deformation of the conductive thin film layer (F) can be prevented.

As an embodiment, referring to FIG. 5 , when the vehicle hose 100 includes a plurality of thin film layers, the plurality of thin film layers may be formed to have the same thickness as each other.

Specifically, when the vehicle hose 100 includes first to fourth thin film layers (F1, F2, F3, F4), the first thin film layer (F1), the second thin film layer (F2), the third thin film layer (F3) and All of the fourth thin film layers F4 may have the same thickness d. At this time, the thickness (d) of the thin film layer is, as described above, of the first rubber layer 110, the first braided layer 120, the second rubber layer 130, the second braided layer 140, and the cover rubber layer 150. It may be formed to be thinner than the thickness.

As another embodiment, when the vehicle hose 100 includes a plurality of thin film layers, the plurality of thin film layers may be formed to have different thicknesses. Referring to Figure 6, the thickness of the plurality of thin film layers, may be formed thicker toward the outer radial direction of the vehicle hose (100).

Specifically, the first thickness d1 of the first thin film layer F1 is formed to be the smallest, the second thickness d2 of the second thin film layer F2 along the radially outer side of the vehicle hose 100, the third The third thickness d3 of the thin film layer F3 and the fourth thickness d4 of the fourth thin film layer F4 may become thicker in that order. Accordingly, the fourth thickness d4 of the fourth thin film layer F4 may be the thickest. At this time, the thickness of the thin film layer may increase at the same rate from the first thickness d1 to the fourth thickness d4.

On the other hand, although not shown in the drawings, the thickness of the plurality of thin film layers may be formed to become thinner toward the outer side of the vehicle hose 100 in the radial direction. That is, the first thickness d1 is the largest, and the second thickness d2 of the second thin film layer F2, the third thickness d3 of the third thin film layer F3, and the fourth The thin film layer F4 may become thinner in order of the fourth thickness d4. In this case, the thickness of the thin film layer may decrease at the same rate from the first thickness d1 to the fourth thickness d4.

As described above, the conductive thin film layer (F) is formed to a finer thickness than the rubber layer and the braided layer, and is arranged to be fixed in close contact between the rubber layer and the braided layer, so that the rubber layers 110, 130) and the braided layers 120 and 140 are deformed, each of the thin film layers F1, F2, F3, and F4 may be deformed in the same shape as the adjacent rubber layer and the braided layer.

On the other hand, the present invention is not limited to the above-described embodiment, and as another embodiment, the vehicle hose 100 may further include a rubber layer, a braided layer, and a thin film layer. As another embodiment, the vehicle hose 100 includes a first rubber layer 110, a first thin film layer F1, a first braided layer 120, a second thin film layer F2, and a second rubber layer 130. ) may be included. In this case, the second rubber layer 130 may correspond to the cover rubber layer.

Referring back to FIG. 2 , the detection device 200 may be a device for detecting an internal deformation state of the vehicle hose 100 by photographing the vehicle hose 100 . The detection device 200 may be, for example, a computed tomography (CT) imaging device that scans the inside of the vehicle hose 100 by projecting an X-ray beam onto the vehicle hose 100 .

The detection device 200 may obtain a tomographic image by photographing the coupling portion A1 of the vehicle hose 100 disposed at the photographing position. At this time, the coupling portion A1 of the vehicle hose 100, which is the CT imaging target, is the vehicle hose 100 that is pressurized by an assembly process such as swaging when the pipe P is inserted into and coupled to the vehicle hose 100. may be a part of

The detection device 200 may photograph the internal state of the coupling portion A1 of the vehicle hose 100 before being pressurized before starting the assembly process for coupling the vehicle hose 100 and the pipe P. . The detection device 200 generates a first signal including information about a tomographic image (hereinafter referred to as a tomographic image before deformation) of the coupling portion A1 of the vehicle hose 100 before pressurization, which is photographed, and the processor 300 can be forwarded to

The detection device 200 may photograph whether or not the rubber layer, the braided layer, and the conductive thin film layer F provided inside the coupling part A1 of the vehicle hose 100 are deformed and the deformed state. Specifically, the detection device 200 scans the inside of the coupling part A1 through CT imaging to detect the first and second rubber layers 110 and 130 and the first and second braided layers 120 by an external force. , 140) and whether or not the first to fourth thin film layers F1, F2, F3, and F4 are deformed, a deformed position, and a tomographic image including information about the degree of deformity can be obtained.

The detection device 200 generates a second signal including information about a tomographic image (hereinafter referred to as a tomographic image after deformation) of the coupling portion A1 of the vehicle hose 100 obtained by photographing, and transmits it to the processor 300. can

The processor 300 may determine an internal deformation state of the vehicle hose 100 by analyzing the tomographic image captured by the detection device 200 . And, based on the determination result, the processor 300 may control the output unit 400 to output the detection result to the outside.

The processor 300 may mean, for example, a data processing device embedded in hardware having a physically structured circuit to perform functions expressed as codes or instructions included in a program, but the scope of the present invention is limited thereto. it is not going to be

As an embodiment, the processor 300 determines the quality of the vehicle hose 100 based on the tomographic image before deformation included in the first signal received from the detection device 200 and the tomographic image after deformation included in the second signal. The deformation state can be judged.

Specifically, the processor 300 compares the tomographic image of the coupling portion A1 of the vehicle hose 100 before deformation with the tomographic image after deformation, and determines whether the coupling portion A1 is deformed, the location of the deformation, and the degree of deformation. can judge At this time, the processor 300 may generate a first control signal and transmit it to the output unit 400 when the determination result is that deformation does not occur in the vehicle hose 100 .

As a result of the determination, the processor 300 may generate and transmit a second control signal including information about the deformation state to the output unit 400 when deformation occurs inside the vehicle hose 100 as a result of the determination. At this time, the information on the deformation state is the deformation position, deformation shape and deformation of each of the rubber layers 110 and 130, the braided layers 120 and 140, and the first to fourth thin film layers F1, F2, F3, and F4. It may contain information about the degree.

As another embodiment, the processor 300 may omit the comparison process with the tomographic image before transformation, generate a third control signal containing only information about the tomographic image after transformation, and transmit the third control signal to the output unit 400. .

The output unit 400 may externally output a deformation detection result of the vehicle hose 100 based on the determination result. As an embodiment, when receiving the first control signal, the output unit 400 may generate and output a first output signal indicating that the vehicle hose 100 is not deformed. On the other hand, when receiving the second control signal, the output unit 400 generates a second output signal for displaying information about the deformation state as described above inside the vehicle hose 100 to the outside and outputs it to the outside. there is.

As another embodiment, when receiving the third control signal, the output unit 400 displays information about a tomographic image after deformation of the coupling portion A1 of the vehicle hose 100 captured by the detection device 200 A third output signal may be generated and output to the outside. In this case, the manager of the vehicle hose deformation detection system 10 visually checks the tomographic image after deformation of the vehicle hose 100 through the output third output signal, and directly determines the state of deformation inside the vehicle hose 100. can judge

7 shows a portion of a tomographic image of a vehicle hose taken using a conventional vehicle hose deformation detection system, and FIG. 8 shows a portion of a tomographic image of a vehicle hose taken using the vehicle hose deformation detection system of FIG. 2 show

First, a method of coupling the vehicle hose 100 and the pipe P may be as follows. In the multi-layered vehicle hose 100, one end of the pipe P may be inserted into the hollow provided inside the first rubber layer 110, which is the innermost rubber layer.

The pipe P may be inserted into the hollow of the first rubber layer 110 until the end of the vehicle hose 100 comes into contact with the hooking portion P10 of the pipe P. At this time, deformation may occur in the multi-layered vehicle hose 100 including the rubber layer and the braided layer by the force applied to insert and fix the pipe P into the vehicle hose 100.

Specifically, the rubber layers 110 and 120 provided in the vehicle hose 100 by the force applied along the longitudinal direction (eg, Y-axis direction) of the vehicle hose 100 during the coupling process, and the braided layers (120, 140), and deformation may occur in the cover rubber layer 150.

Referring to FIG. 7, a conventional vehicle hose does not include a conductive thin film layer (F), and includes a first rubber layer 110, a first braided layer 120, a second rubber layer 130, and a second braided layer. 140 and the cover rubber layer 150 may be a multi-layered hose in which the hose is sequentially stacked in a radial direction.

In the course of coupling the conventional vehicle hose to the pipe P, deformation may occur due to a force applied along the longitudinal direction (Y-axis direction).

Examining a tomographic image of the coupling part of a conventional vehicle hose taken through the detection device 200, as exemplarily shown in FIG. 7, the overall deformation state of the vehicle hose can be confirmed through CT imaging, but the rubber layers As the (110, 130) or the braided layers (120, 140) are made of the same or similar material, there is a problem that the deformation state of each layer cannot be accurately grasped through CT imaging.

In addition, in the conventional vehicle hose and deformation detection system using the same, in order to accurately grasp the deformation state of each layer, an additional operation of cutting the deformed part and confirming the cross section was required. In addition, additional deformation occurs in the rubber layers 110 and 130 and the braided layers 120 and 140 by the cross-section cutting operation, and it is difficult to detect only the deformation caused by swaging, and thus the accuracy of deformation detection is low. Problems also exist.

Referring to FIG. 8, in the case of the vehicle hose 100 and the deformation detection system 10 using the same according to the present invention, as described above, the vehicle hose 100 has a conductive thin film layer (F) between the rubber layer and the braided layer. In the process of coupling the vehicle hose 100 to the pipe P, the rubber layers 110 and 130 and the braided layers 120 and 140 are formed by a force applied along the longitudinal direction (Y-axis direction). In addition, the thin film layers F1, F2, F3, and F4 may also be deformed together.

Since the conductive thin film layer (F) is formed to a fine thickness and is placed in a state of being closely attached and fixed between the adjacent rubber layer and the braided layer, it can be deformed to the same or similar deformation position, shape and degree of deformation as the adjacent rubber layer and the braided layer. At this time, due to the fine thickness of the conductive thin film layer (F), the deformation of the conductive thin film layer (F) itself may not affect the deformation of the adjacent rubber layer and the braided layer.

Examining the tomographic image of the coupling portion A1 of the vehicle hose 100, taken through the detection device 200, as exemplarily shown in FIG. 8, the overall deformation of the vehicle hose 100 through CT imaging. status can be checked.

At this time, the conductive thin film layer (F) is made of a conductive metal, which is a different material from the rubber layers (110, 130) and the braided layers (120, 140), and is disposed between each layer, thereby obtaining a tomogram obtained through CT imaging. An image can be output in a state where each layer is clearly partitioned by the conductive thin film layer (F).

Specifically, the first rubber layer 110 and the first braided layer 120 are partitioned by the first thin film layer F1, and the first braided layer 120 and the second rubber layer 130 are the second thin film layer F2. The second rubber layer 130 and the second braided layer 140 are formed by the third thin film layer F3, and the second braided layer 140 and the cover rubber layer 150 are formed by the fourth thin film layer F4. By dividing by , each layer can be clearly distinguished in a tomographic image.

In addition, the first thin film layer (F1) is the first rubber layer 110 and the first braided layer 120, the second thin film layer (F2) is the first braided layer 120 and the second rubber layer 130, the third The thin film layer F3 is deformed into the same or similar shape as the second rubber layer 130 and the second braided layer 140, and the fourth thin film layer F4 is the second braided layer 140 and the cover rubber layer 150. can Accordingly, the rubber layers 110 and 130 and the braided layers 120 and 14 are distinguished through confirmation of the position and deformation state of each of the thin film layers F1, F2, F3, and F4 in the tomographic image, and Each deformation state can be grasped.

In this way, through the conductive thin film layers (F) provided between the respective layers, it is possible to easily and accurately check the deformation state of each layer in the tomographic image, and also, unlike the conventional case, there is no need to perform a cutting operation to check the cross section. Since there is no additional deformation, it is possible to further improve the accuracy of detection.

As described above, the vehicle hose 100 and the deformation detection system of the vehicle hose 100 according to the embodiments of the present invention, a conductive thin film layer of a flexible material between each layer of the multi-layered vehicle hose 100 (F ) to divide each layer, even if each layer inside the vehicle hose 100 is made of the same or similar material, it is possible to accurately detect the deformation state of each layer through CT imaging.

In addition, it is not necessary to cut the cross section to confirm the deformation of the vehicle hose 100, and by checking the deformation state only with tomography, it is possible to prevent additional deformation due to the cross-section cutting, thereby improving the accuracy of deformation detection.

The above description of the present invention is for illustrative purposes, and those skilled in the art can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included in the scope of the present invention.

10: Vehicle hose deformation detection system
100: vehicle hose
110: first rubber layer
120: first braided layer
130: second rubber layer
140: second braided layer
150: cover rubber layer
F: conductive thin film layer
200: detection device
300: processor
400: output unit

Claims (10)

delete delete delete delete delete delete delete As a system for detecting the deformation state of a vehicle hose,
a detecting device that acquires a tomographic image by photographing the vehicle hose;
a processor analyzing a tomographic image captured by the detection device to determine a deformation state of the vehicle hose; and
Based on the determination result of the processor, an output unit for outputting a deformation detection result of the vehicle hose to the outside; includes,
The detection device captures at least one of a tomographic image of the coupling portion of the vehicle hose before the vehicle hose is coupled to the pipe and a tomographic image of the coupling portion of the vehicle hose after the vehicle hose is coupled to the pipe. detection system. According to claim 8,
The processor compares a tomographic image of the coupling portion of the vehicle hose before the coupling and a tomographic image of the coupling portion of the vehicle hose after the coupling to determine whether the vehicle hose is deformed, the location of the deformation, and the degree of deformation, A strain detection system for vehicle hoses. According to claim 8,
The vehicle hose,
a first rubber layer;
a knitted fabric layer covering and reinforcing the first rubber layer;
a second rubber layer formed to surround the braided layer; and
A conductive thin film layer disposed between at least one of the first rubber layer and the braided layer and between the braided layer and the second rubber layer; including a strain detection system for a vehicle hose.

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